CN112248756B

CN112248756B - Control method and device for heat pump air conditioner, electronic device, storage medium and vehicle

Info

Publication number: CN112248756B
Application number: CN202011264737.6A
Authority: CN
Inventors: 贾永英; 贾新龙; 王忠华; 方志文; 吴宇宵; 张景宝; 张林铎; 陈志杰; 梁成
Original assignee: Northeast Petroleum University
Current assignee: Northeast Petroleum University
Priority date: 2020-11-12
Filing date: 2020-11-12
Publication date: 2022-02-15
Anticipated expiration: 2040-11-12
Also published as: CN112248756A

Abstract

The disclosure relates to a control method and a control device of a heat pump air conditioner, electronic equipment, a storage medium and a vehicle, and relates to the technical field of air conditioners or automobile air conditioners, wherein the control method comprises the following steps: receiving a heating control signal and acquiring the external environment temperature, the first temperature of the first heat exchanger and the second temperature of the second heat exchanger; determining a heating mode according to the heating control signal, the second temperature and the ambient temperature, and determining whether the first heat exchanger needs defrosting according to the heating mode and the first temperature; if defrosting is needed, determining whether starting conditions of defrosting are met according to the environment temperature and the second temperature; if the starting condition of defrosting is met, controlling the second heat exchanger and the defrosting assembly to defrost the first heat exchanger, and determining whether defrosting is finished; and if the heating is finished, the third heat exchanger is used for heating by controlling the first heat exchanger and the first heating assembly. The defrosting of the heat exchanger can be realized.

Description

Control method and device for heat pump air conditioner, electronic device, storage medium and vehicle

Technical Field

The disclosure relates to the technical field of air conditioners or automobile air conditioners, in particular to a control method and device of a heat pump air conditioner, electronic equipment, a storage medium and a vehicle, and particularly relates to a frostless-new-energy heat pump air conditioning system of an electric automobile suitable for severe cold regions.

Background

Along with the improvement of life of people, comfortable and fast automobiles are selected by more and more families, the problems of energy cost rise, global warming, air pollution and the like are more severe in recent years, the problems of energy consumption and pollution of the traditional automobiles are more prominent, more energy-saving and environment-friendly electric automobiles are produced, and through development and popularization for many years, the electric automobiles are already providedIs quite popular. And aiming at the extreme weather of severe cold areas, the energy consumption of the air conditioner of the electric automobile is continuously improved, so that the problem of shorter endurance of the original electric automobile is more prominent. How to more efficiently reduce the energy consumption of the electric automobile becomes a topic of extensive discussion. The existing heat pump air-conditioning system of the electric automobile can only be singly utilized from a certain energy source, and because the frosting problem of the heat exchanger outside the automobile is caused, the efficiency of the heat pump of the air conditioner is greatly reduced, more energy consumption is generated under the same heating capacity, some scholars propose an additional heat storage device or an additional subcooler to solve the influence on the temperature in the automobile when the heat exchanger outside the automobile is defrosted, other scholars research the surface characteristics of the heat exchanger to delay the frosting, and other scholars remove the frost layer on the surface of the heat exchanger through additional high-frequency vibration. But none of them fundamentally solves the problem of frosting of the external heat exchanger in severe cold regions. The refrigerant must have a low temperature at the position of the exterior heat exchanger to absorb the heat of the outside air and transport the heat into the vehicle, and the consequence is that the exterior heat exchanger has a low surface temperature and is easy to frost. Experiments show that when the power of the external fan is constant, the ventilation volume of the external heat exchanger after frosting is attenuated to 950m from 1500³And h, the flow rate of the refrigerant of the system is reduced from 1.5 to 0.4kg/min, the heating capacity is reduced from 2300 to 1500W and is reduced by 34.7%, the COP (coefficient of performance) of the system is reduced from 4.8 to 3.3, and the reduction range is 31.2%. In addition, the thick frost layer can also damage the surface structure of the heat exchanger outside the vehicle, which not only reduces the heat exchange capability of the heat exchanger, but also causes the problems of wind blockage, leakage and the like of the system, even the operation of the heat pump system is deteriorated until the heat pump system can not work. Therefore, defrosting of the heat pump type air conditioner of the pure electric vehicle in winter is an urgent and necessary work.

In view of the above disadvantages of the prior art, it is particularly important to find an automotive air conditioning system that can adapt to the environment in severe cold regions, effectively improve the heating efficiency of a heat pump, and reduce the dependence on traditional energy.

Disclosure of Invention

The present disclosure provides a control method and apparatus for a heat pump air conditioner, an electronic device, a storage medium, and a vehicle, which can defrost a heat exchanger, solve the problems of reduced ventilation after the heat exchanger frosts, reduced system refrigerant flow, reduced heating capacity, reduced air conditioner energy efficiency ratio, reduced heat exchange capacity of the heat exchanger due to damage to the surface structure of the heat exchanger, and wind blockage and leakage of the system, even deterioration of the operation of the heat pump system until the heat pump system cannot work.

According to an aspect of the present disclosure, there is provided a control method of a heat pump air conditioner, including:

receiving a heating control signal and acquiring the external environment temperature, the first temperature of the first heat exchanger and the second temperature of the second heat exchanger;

determining a heating mode according to the heating control signal, the second temperature and the ambient temperature, and determining whether the first heat exchanger needs defrosting according to the heating mode and the first temperature;

if defrosting is needed, determining whether starting conditions of defrosting are met according to the environment temperature and the second temperature;

if the starting condition of defrosting is met, controlling the second heat exchanger and the defrosting assembly to defrost the first heat exchanger, and determining whether defrosting is finished;

and if the heating is finished, the third heat exchanger is used for heating by controlling the first heat exchanger and the first heating assembly.

Preferably, the method for determining the heating mode according to the heating control signal, the second temperature and the ambient temperature includes:

after the heating control signal is obtained, a first preset temperature and a second preset temperature are obtained;

if the second temperature is greater than or equal to the first preset temperature, starting heating and determining a first heating mode;

in the first heating mode, the third heat exchanger is controlled to heat by controlling the second heat exchanger and the second heating assembly;

if the second temperature is lower than the first preset temperature and the environment temperature is higher than or equal to the second preset temperature, starting heating and determining a second heating mode;

in the second heating mode, the third heat exchanger heats by controlling the first heat exchanger and the first heating assembly;

if the second temperature is lower than the first preset temperature and the environment temperature is lower than the second preset temperature, starting heating and determining a third heating mode;

and under the third heating mode, controlling and starting a second radiating fan and a power supply of the heating component, and utilizing the second radiating fan and the heating component.

Preferably, the method for determining whether the first heat exchanger needs defrosting according to the heating mode and the first temperature comprises the following steps:

acquiring a third preset temperature in the second heating mode;

if the first temperature is less than or equal to the third preset temperature, determining that the first heat exchanger needs defrosting; otherwise, the first heat exchanger does not require defrosting;

and/or, in the first heating mode, the method for heating the third heat exchanger by controlling the second heat exchanger and the second heating assembly comprises the following steps:

controlling to open a fourth heating connecting passage of the second heat exchanger and the third heat exchanger, controlling to open a fifth heating connecting passage of the second heat exchanger, a compressor of the second heating assembly and a gas-liquid separator connected with the compressor, and controlling to open a sixth heating connecting passage of the second heat exchanger, the compressor and the gas-liquid separator connected with the compressor;

the refrigerant in the fourth heating connecting passage releases heat in the third heat exchanger, the refrigerant sequentially enters the gas-liquid separator and the compressor through a fifth heating connecting passage, the refrigerant enters the second heat exchanger through a sixth heating connecting passage to absorb heat, and the refrigerant repeatedly circulates to form a heating loop.

Preferably, the method for determining whether a defrost initiation condition is satisfied according to the ambient temperature and the second temperature includes:

acquiring a fourth preset temperature corresponding to the second temperature and a fifth preset temperature corresponding to the ambient temperature;

determining a first starting condition according to the second temperature and a fourth preset temperature;

determining a second starting condition according to the environment temperature and a fifth preset temperature;

if the first starting condition and the second starting condition are met simultaneously, determining that the starting condition of defrosting is met; otherwise, determining that the starting condition of defrosting is not met;

and/or the presence of a gas in the interior of the container,

the method of determining whether defrosting is complete includes: acquiring a sixth preset temperature, and detecting the first temperature of the first heat exchanger in real time;

if the first temperature detected in real time is greater than or equal to the fourth preset temperature, the defrosting is determined to be finished; otherwise, it is determined that defrosting is not complete.

Preferably, if the starting condition of defrosting is not satisfied, feeding back a corresponding instruction corresponding to the starting condition of defrosting which is not satisfied;

and/or the presence of a gas in the interior of the container,

acquiring a wind speed signal, a temperature signal and an illumination signal of the solar power generation panel;

if the wind speed signal is greater than or equal to the set wind speed, controlling to start a wind power generation mode; otherwise, controlling to close the wind power generation mode;

if the temperature signal is greater than a seventh preset temperature and the illumination signal exists, controlling to start a solar power generation mode, otherwise, controlling to stop the solar power generation mode;

and/or the presence of a gas in the interior of the container,

receiving a refrigeration control signal, and controlling the first heat exchanger and the refrigeration assembly to enable the third heat exchanger to refrigerate according to the refrigeration control signal;

and/or the presence of a gas in the interior of the container,

if the starting condition of defrosting is met, the method for controlling the second heat exchanger and the defrosting assembly to defrost the first heat exchanger comprises the following steps:

controlling to open a first defrosting connecting passage of the first heat exchanger and the second heat exchanger, controlling to open a second defrosting connecting passage of the first heat exchanger, a compressor of the defrosting assembly and a gas-liquid separator connected with the compressor, and controlling to open a third defrosting connecting passage of the second heat exchanger, the compressor and the gas-liquid separator connected with the compressor;

the refrigerant in the first defrosting connection passage releases heat in the first heat exchanger, the refrigerant sequentially enters the gas-liquid separator and the compressor through the second defrosting connection passage, the refrigerant enters the second heat exchanger through the third defrosting connection passage to absorb heat, and the refrigerant repeatedly circulates to form a defrosting circuit;

and/or the presence of a gas in the interior of the container,

the method for heating the third heat exchanger by controlling the first heat exchanger and the first heating assembly comprises the following steps:

controlling to open a first heating connecting passage of the first heat exchanger and the third heat exchanger, controlling to open a second heating connecting passage of the first heat exchanger, a compressor of the first heating assembly and a gas-liquid separator connected with the compressor, and controlling to open a third heating connecting passage of the third heat exchanger, the compressor and the gas-liquid separator connected with the compressor;

the refrigerant in the first heating connecting passage releases heat in the third heat exchanger, the refrigerant sequentially enters the gas-liquid separator and the compressor through the second heating connecting passage, the refrigerant enters the third heat exchanger through the first heating connecting passage to absorb heat, and the refrigerant repeatedly circulates to form a heating loop;

and/or the presence of a gas in the interior of the container,

the second heat exchanger comprises the following components in sequence from the outer layer to the inner layer: the heat-insulation and heat-preservation type heat-preservation and heat-preservation combined pipe comprises a maintenance structure layer, a polystyrene heat-preservation layer, a lower layer plate, a phase change heat-storage material layer, a refrigerant conduit, an upper layer plate, a selective absorption material layer, an air layer and a permeable layer.

Preferably, in the wind power generation mode and/or the solar power generation mode, a voltage value of a storage battery connected to the circuit corresponding to the wind power generation mode and the solar power generation mode is detected in real time;

if the voltage value is greater than or equal to a first set voltage value, controlling to charge a main battery connected with a circuit corresponding to the wind power generation mode and the solar power generation mode, and stopping charging the storage battery;

if the voltage value is smaller than or equal to a second set voltage value, controlling to charge a storage battery connected with a circuit corresponding to the wind power generation mode and the solar power generation mode, and stopping charging the main battery;

and/or the presence of a gas in the interior of the container,

the method for controlling the first heat exchanger and the refrigeration assembly to refrigerate the third heat exchanger according to the refrigeration control signal comprises the following steps:

controlling to open a first refrigeration connecting passage of the first heat exchanger and the third heat exchanger, controlling to open a second refrigeration connecting passage of the third heat exchanger, a compressor of the refrigeration thermal assembly and a gas-liquid separator connected with the compressor, and controlling to open a third refrigeration connecting passage of the first heat exchanger, the compressor and the gas-liquid separator connected with the compressor;

the refrigerant in the first refrigeration connecting passage releases heat in the first heat exchanger, the refrigerant sequentially enters the gas-liquid separator and the compressor through the second refrigeration connecting passage, the refrigerant enters the third heat exchanger through the third refrigeration connecting passage to absorb heat, and the refrigerant repeatedly circulates to form a refrigeration loop.

According to an aspect of the present disclosure, there is provided a control apparatus of a heat pump air conditioner, including:

the receiving and acquiring unit is used for receiving the heating control signal and acquiring the external environment temperature, the first temperature of the first heat exchanger and the second temperature of the second heat exchanger;

a heating mode and defrosting determination unit, configured to determine a heating mode according to the heating control signal, the second temperature, and the ambient temperature, and determine whether the first heat exchanger needs defrosting according to the heating mode and the first temperature;

the starting condition determining unit is used for determining whether starting conditions for defrosting are met or not according to the environment temperature and the second temperature if defrosting is needed;

the defrosting unit is used for controlling the second heat exchanger and the defrosting assembly to defrost the first heat exchanger and determining whether defrosting is finished or not if the starting condition of defrosting is met;

and the heating unit is used for heating the third heat exchanger by controlling the first heat exchanger and the first heating assembly if defrosting is finished.

According to an aspect of the present disclosure, there is provided an electronic device including:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to: the control method of the heat pump air conditioner is executed.

According to an aspect of the present disclosure, there is provided a computer-readable storage medium having stored thereon computer program instructions which, when executed by a processor, implement the control method of the heat pump air conditioner described above.

According to an aspect of the present disclosure, there is provided an electric vehicle including: an air conditioning unit, and/or a new energy power generation unit;

the air conditioning unit adopts the control method of the heat pump air conditioner; or, the air conditioner comprises the control device of the heat pump air conditioner, and the air conditioner unit is connected with the control device; or, as above electronic device, the air conditioning unit is connected with the electronic device; or, as with the computer-readable storage medium described above, the air conditioning unit is connected to the computer-readable storage medium;

the new energy power generation unit is connected with the air conditioning unit and used for supplying power to the air conditioning unit;

the first heat exchanger and the second heat exchanger are installed on the outer side of the electric vehicle, and the third heat exchanger is installed in the electric vehicle;

the air conditioning unit receives a heating control signal or a refrigerating control signal;

according to the heating control signal, the third heat exchanger is controlled to heat through controlling the first heat exchanger and the first heating assembly or the third heat exchanger is controlled to heat through controlling the second heat exchanger and the second heating assembly;

and controlling the first heat exchanger and the refrigeration assembly to enable the third heat exchanger to refrigerate according to the refrigeration control signal.

According to the technical scheme and the embodiment of the heat pump air conditioner control method and device, the electronic equipment, the storage medium and the vehicle, the defrosting of the heat exchanger can be realized, the problems that the ventilation quantity is reduced after the heat exchanger is frosted, the flow quantity of a system refrigerant is attenuated, the heating quantity is reduced, the energy efficiency ratio of the air conditioner is reduced, the surface structure of the heat exchanger is damaged, the heat exchange capacity of the heat exchanger is reduced, the system is blocked by wind, the system leaks and the like are caused, and even the operation of the heat pump system is deteriorated until the heat pump system cannot work are solved.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Other features and aspects of the present disclosure will become apparent from the following detailed description of exemplary embodiments, which proceeds with reference to the accompanying drawings.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and, together with the description, serve to explain the principles of the disclosure.

Fig. 1 illustrates a flowchart of a control method of a heat pump air conditioner according to an embodiment of the present disclosure;

fig. 2 shows an overall schematic diagram of a heat pump air conditioner according to an embodiment of the present disclosure;

FIG. 3 shows a schematic diagram of an air conditioning control unit according to an embodiment of the present disclosure;

FIG. 4 shows a schematic diagram of a control in defrost mode according to an embodiment of the present disclosure;

FIG. 5 shows a schematic diagram of a control of a second heating mode according to an embodiment of the present disclosure;

FIG. 6 shows a schematic diagram of a control arrangement of a first heating mode according to an embodiment of the present disclosure;

FIG. 7 shows a schematic diagram of a control device in a cooling mode according to an embodiment of the present disclosure;

FIG. 8 shows a schematic diagram of a new energy power generation unit according to an embodiment of the disclosure;

FIG. 9 shows a schematic diagram of a control system according to an embodiment of the present disclosure;

FIG. 10 shows a schematic structural diagram of a second heat exchanger according to an embodiment of the present disclosure; wherein fig. 10(a) shows a top view of a second heat exchanger according to an embodiment of the present disclosure, and fig. 10(b) shows a cross-sectional view of fig. 10(a) along a-a direction;

FIG. 11 is a block diagram illustrating an electronic device 800 in accordance with an exemplary embodiment;

fig. 12 is a block diagram illustrating an electronic device 1900 according to an example embodiment.

Detailed Description

Various exemplary embodiments, features and aspects of the present disclosure will be described in detail below with reference to the accompanying drawings. In the drawings, like reference numbers can indicate functionally identical or similar elements. While the various aspects of the embodiments are presented in drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

The word "exemplary" is used exclusively herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments.

The term "and/or" herein is merely an association describing an associated object, meaning that three relationships may exist, e.g., a and/or B, may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the term "at least one" herein means any one of a plurality or any combination of at least two of a plurality, for example, including at least one of A, B, C, and may mean including any one or more elements selected from the group consisting of A, B and C.

Furthermore, in the following detailed description, numerous specific details are set forth in order to provide a better understanding of the present disclosure. It will be understood by those skilled in the art that the present disclosure may be practiced without some of these specific details. In some instances, methods, means, elements and circuits that are well known to those skilled in the art have not been described in detail so as not to obscure the present disclosure.

It is understood that the above-mentioned method embodiments of the present disclosure can be combined with each other to form a combined embodiment without departing from the logic of the principle, which is limited by the space, and the detailed description of the present disclosure is omitted.

In addition, the present disclosure also provides an image processing apparatus, an electronic device, a computer-readable storage medium, and a program, which can be used to implement any one of the image processing methods provided by the present disclosure, and the descriptions and corresponding descriptions of the corresponding technical solutions and the corresponding descriptions in the methods section are omitted for brevity.

Fig. 1 illustrates a flowchart of a control method of a heat pump air conditioner according to an embodiment of the present disclosure, and fig. 2 illustrates an overall schematic diagram of the heat pump air conditioner according to the embodiment of the present disclosure. As shown in fig. 1 and 2, the method for controlling a heat pump air conditioner includes: step S101: receiving a heating control signal and acquiring an external environment temperature, a first temperature of the first heat exchanger 20 and a second temperature of the second heat exchanger 21; step S102: determining a heating mode according to the heating control signal, the second temperature and the ambient temperature, and determining whether the first heat exchanger 20 needs defrosting according to the heating mode and the first temperature; step S103: if defrosting is needed, determining whether starting conditions of defrosting are met according to the environment temperature and the second temperature; step S104: if the starting condition of defrosting is met, controlling the second heat exchanger 21 and the defrosting assembly to defrost the first heat exchanger 20, and determining whether defrosting is finished; step S105: if the heating is finished, the third heat exchanger 22 heats by controlling the first heat exchanger 20 and the first heating assembly. The external ambient temperature may be an ambient temperature outside the vehicle. The defrosting of the heat exchanger can be realized, the problems that the ventilation quantity is reduced after the heat exchanger is frosted, the flow quantity of a system refrigerant is attenuated, the heating quantity is reduced, the energy efficiency ratio of an air conditioner is reduced, the surface structure of the heat exchanger is damaged, the heat exchange capacity of the heat exchanger is reduced, the problems of wind blockage, leakage and the like of the system are caused, and even the operation of the heat pump system is deteriorated until the heat pump system cannot work are solved. And, comfort in the vehicle is not affected during defrosting.

In fig. 2, the heat pump air conditioner includes: the system comprises an impeller 1, a transmission device 2, a wind power direct current generator 3, a first electric controller 4, a first inverter 5, a main automobile battery 6, a storage battery 7, a second inverter 8, a solar power generation panel 9, an anti-recoil diode 10, a heat pump compressor 11, a four-way reversing valve 12, a gas-liquid separator 13, a first electric two-position three-way valve 14, a second electric two-position three-way valve 15, a third electric two-position three-way valve 16, a fourth electric two-position three-way valve 17, a first three-way valve 18, a second three-way valve 19, a first heat exchanger 20, a second heat exchanger 21, a third heat exchanger 22, a PTC thermistor 23 (heating element), an electronic expansion valve 24, a first cooling fan 25, a second cooling fan 26, a third inverter 27, a second electric controller 28 and an air conditioner main control chip 29. The specific connections and operation thereof are detailed in the detailed description of fig. 3-9.

When the first electric two-position three-way valve 14, the second electric two-position three-way valve 15, the third electric two-position three-way valve 16 and the fourth electric two-position three-way valve 17 are controlled by the main control chip 29 to act, at the same moment, only one end channel of the three-way valves is opened, namely when the left end channel is controlled to be opened, the right end channel is simultaneously closed; the inner channels of the first three-way valve 18 and the second three-way valve 19 are opened in two directions; the gas-liquid separator 13 is capable of separating air and liquid refrigerant in the refrigerant circuit of the air conditioning system to prevent liquid damage to the heat pump compressor 11.

In the embodiment of the present disclosure, the refrigerant passage connection manner is: the outlet of the compressor 11 is connected with one end of the four-way reversing valve 12 through a pipeline, and the inlet of the compressor is connected with the outlet of the gas-liquid separator 13 through a pipeline; the other two ports of the four-way reversing valve 12 are respectively connected with the first electric two-position three-way valve 14 and the second electric two-position three-way valve 15 through pipelines; the other two ends of the first electric two-position three-way valve 14 are respectively connected with a first heat exchanger 20 and a first three-way valve 18 through pipelines; the other two ends of the second electric two-position three-way valve 15 are respectively connected with a third heat exchanger 22 and a first three-way valve 18 through pipelines; the other end of the first three-way valve 18 is connected with the second heat exchanger 21 through a pipeline; the other two ends of the second three-way valve 19 are connected with the third electric two-position three-way valve 16 and the fourth electric two-position three-way valve 17 through pipelines; the other end of the first heat exchanger 20 is connected with the third electric two-position three-way valve 16 through a pipeline, and the third electric two-position three-way valve can be installed inside the front of a vehicle. The other ends of the third electric two-position three-way valve 16 and the fourth electric two-position three-way valve 17 are connected with the electronic expansion valve 24 through a pipeline.

In the first heating mode, the first heat exchanger may be mounted off-board, the first heat exchanger extracting heat off-board and transferring the heat to the third heat exchanger 22, the third heat exchanger 22 being used to heat the interior of the vehicle; the other end of the second heat exchanger 21 is connected with one end of the second three-way valve 19 through a pipeline and can be arranged on the outer side of the roof; the other end of the third heat exchanger 22 is connected with one end of the fourth electric two-position three-way valve 17 through a pipeline. In the heating mode, the third heat exchanger 22 is installed in the vehicle to heat the vehicle; in the cooling mode, the third heat exchanger 22 cools the inside of the vehicle. The other ends of the third electric two-position three-way valve 16 and the fourth electric two-position three-way valve 17 are connected with the electronic expansion valve 24 through a pipeline.

Step S101: receiving a heating control signal and acquiring an external environment temperature, a first temperature of the first heat exchanger 20 and a second temperature of the second heat exchanger 21.

In the embodiment of the present disclosure, a plurality of temperature sensors may be provided, and the plurality of temperature sensors may be respectively provided on the outside (for example, the outside of the vehicle), the first heat exchanger 20, and the second heat exchanger 21, and the plurality of temperature sensors may collect an ambient temperature of the outside, a first temperature of the first heat exchanger 20, and a second temperature of the second heat exchanger 21. The heating control signal can be obtained by a remote controller or a trigger button, and the heat pump air conditioner can receive the heating control signal and the refrigerating control signal.

Step S102: determining a heating mode according to the heating control signal, the second temperature and the ambient temperature, and determining whether the first heat exchanger 20 needs defrosting according to the heating mode and the first temperature.

In the present disclosure, the first heat exchanger 20 is defrosted only when the third heat exchanger 22 is required to be heated by controlling the first heat exchanger 20 and the first heating assembly in the heating mode.

In the present disclosure, the method for determining whether the first heat exchanger 20 needs defrosting according to the heating mode and the first temperature includes: acquiring a third preset temperature in the second heating mode; if the first temperature is less than or equal to the third preset temperature, determining that the first heat exchanger 20 needs defrosting; otherwise, the first heat exchanger 20 does not require defrosting.

For example, the third preset temperature is 3 ℃, and if the first temperature is less than or equal to 3 ℃, it is determined that the first heat exchanger 20 needs defrosting; otherwise, the first heat exchanger 20 does not require defrosting.

In the present disclosure and embodiment, the heating mode may be determined according to the temperatures (the ambient temperature and the second temperature) in multiple dimensions, and the heating mode may be switched during the heating process.

The method for determining the heating mode according to the heating control signal, the second temperature and the ambient temperature comprises the following steps: after the heating control signal is obtained, a first preset temperature and a second preset temperature are obtained; if the second temperature detected in real time is greater than or equal to the first preset temperature, starting heating and determining a first heating mode; in the first heating mode, the third heat exchanger 22 heats by controlling the second heat exchanger 21 and the second heating unit.

If the second temperature detected in real time is lower than the first preset temperature and the environment temperature detected in real time is higher than or equal to the second preset temperature, starting heating and determining a second heating mode; in the second heating mode, the third heat exchanger 22 heats by controlling the first heat exchanger 20 and the first heating element.

If the second temperature detected in real time is lower than the first preset temperature and the environment temperature detected in real time is lower than the second preset temperature, starting heating and determining a third heating mode; in the third heating mode, the second heat dissipation fan 26 and the heating element (PTC thermistor 23) are used to heat by controlling the power supply to the heat dissipation fan and the heating element. For example, when the ambient temperature t0 is less than 0 ℃ and the temperature t1 of the second heat exchanger 21 is less than 20 ℃, the air conditioner main control chip 29 controls the second power control valve 28 to interrupt the power supply of the compressor, and simultaneously supplies power to the second cooling fan 26 and the PTC thermistor 23 (heating assembly) to heat the air in the vehicle.

For example, the first predetermined temperature is 20 ℃ and the second predetermined temperature is 0 ℃. If the second temperature is greater than or equal to the first preset temperature by 20 ℃, starting heating and determining a first heating mode; if the second temperature is lower than the first preset temperature by 20 ℃ and the environment temperature is higher than or equal to the second preset temperature by 0 ℃, starting heating and determining a second heating mode; and if the second temperature is lower than the first preset temperature by 20 ℃ and the environment temperature is lower than the second preset temperature by 0 ℃, starting heating and determining a third heating mode.

In the present disclosure and embodiments, the heating mode may be switched during heating. The air conditioner main control chip 29 receives and processes the temperature signal of the sensor during the running process of the automobile, so as to control the air conditioner system to switch among the three heating modes.

For example, when the ambient temperature t0 < 0 ℃ and the temperature t1 < 20 ℃ of the second heat exchanger 21, a third heating mode is determined, in which heating is performed by the second heat dissipation fan 26 and the heating assembly (PTC thermistor 23) using power supply by controlling the turn-on of the second heat dissipation fan and the heating assembly. The heating effect is good, the temperature can be quickly raised, and when the ambient temperature t0 is more than or equal to 0 ℃ and the temperature t1 of the second heat exchanger 21 is less than 20 ℃, the third heating mode is automatically switched to the second heating mode; if the temperature t1 of the second heat exchanger 21 is more than or equal to 20 ℃, the second heating mode is automatically switched to the first heating mode. The remaining switching modes will not be described in further detail here.

Fig. 3 shows a schematic diagram of an air conditioning control unit according to an embodiment of the present disclosure. The air conditioner control unit has three control methods including: a defrosting mode, a first heating mode, a second heating mode, and a third heating mode. More particularly, reference may be made to fig. 1 and 2, and to the detailed description of fig. 4-6.

Step S103: and if the defrosting is needed, determining whether the starting condition of the defrosting is met or not according to the environment temperature and the second temperature.

In this disclosure, the method of determining whether a start condition for defrosting is satisfied according to the ambient temperature and the second temperature includes: acquiring a fourth preset temperature corresponding to the second temperature and a fifth preset temperature corresponding to the ambient temperature; determining a first starting condition according to the second temperature and a fourth preset temperature; determining a second starting condition according to the environment temperature and a fifth preset temperature; if the first starting condition and the second starting condition are met simultaneously, determining that the starting condition of defrosting is met; otherwise, it is determined that the defrost initiation condition is not satisfied.

For example, the fourth preset temperature is 20 ℃ and the fifth preset temperature is 0 ℃; determining a first starting condition according to the second temperature and a fourth preset temperature of 20 ℃; determining a second starting condition according to the environment temperature and a fifth preset temperature of 0 ℃; if the first starting condition and the second starting condition are met simultaneously, determining that the starting condition of defrosting is met; otherwise, it is determined that the defrost initiation condition is not satisfied.

Step S104: and if the starting condition of defrosting is met, controlling the second heat exchanger 21 and the defrosting assembly to defrost the first heat exchanger 20, and determining whether defrosting is finished.

In the disclosure, if the starting condition of defrosting is not satisfied, the corresponding instruction corresponding to the starting condition of defrosting is fed back, and the air conditioner main control chip receives the corresponding instruction and prompts.

Fig. 4 shows a schematic diagram of a control device in a defrost mode according to an embodiment of the present disclosure. And if the starting condition of defrosting is met, controlling the second heat exchanger 21 and the defrosting assembly to defrost the first heat exchanger 20.

In the present disclosure, the method for controlling the second heat exchanger 21 and the defrosting module to defrost the first heat exchanger 20 if the starting condition of defrosting is satisfied includes: controlling to open a first defrosting connection passage of the first heat exchanger 20 and the second heat exchanger 21, controlling to open a second defrosting connection passage of the first heat exchanger 20, the compressor 11 of the defrosting assembly and the gas-liquid separator 13 connected with the compressor 11, and controlling to open a third defrosting connection passage of the second heat exchanger 21, the compressor 11 and the gas-liquid separator 13 connected with the compressor 11; the refrigerant in the first defrosting connection path releases heat in the first heat exchanger 20, the refrigerant sequentially enters the gas-liquid separator 13 and the compressor 11 through the second defrosting connection path, the refrigerant enters the second heat exchanger 21 through the third defrosting connection path to absorb heat, and the refrigerant repeatedly circulates to form a defrosting circuit.

Referring to fig. 4, in the embodiment of the present disclosure, a method for controlling the second heat exchanger 21 and the defrosting assembly to defrost the first heat exchanger 20 is described in more detail.

In the embodiment of the disclosure, when the temperature t2 of the first heat exchanger 20 is less than or equal to 3 ℃, it is determined that the first heat exchanger 20 needs defrosting; whether the starting condition of defrosting is met is further determined, when the environmental temperature t0 is more than or equal to 0 ℃, the temperature t1 of the second heat exchanger 21 is less than or equal to 20 ℃, and the temperature t2 of the first heat exchanger 20 is less than or equal to 3 ℃, the starting condition of defrosting is met, and at the moment, the air-conditioning system is switched to a defrosting mode.

In the embodiment of the present disclosure, when the temperature t2 of the first heat exchanger 20 is > 3 ℃, defrosting is not performed. The temperature t1 of the second heat exchanger 21 is less than or equal to 20 ℃, which means that the second heat exchanger 21 can obtain less heat, so the first heat exchanger 20 is adopted for heating, and meanwhile, the frosting is more when the surface temperature t2 of the first heat exchanger 20 is less than or equal to 3 ℃.

In an embodiment of the present disclosure, the first defrost connection path includes: the heat exchanger comprises a third electric two-position three-way valve 16, a fourth electric two-position three-way valve 17, a second three-way valve 19 (normally open) and an electronic expansion valve 24, wherein a first cooling fan 25 is arranged beside the first heat exchanger 20, and the first heat exchanger 20 is connected with the second heat exchanger 21 sequentially through the third electric two-position three-way valve 16, the electronic expansion valve 24, the fourth electric two-position three-way valve 17 and the second three-way valve 19.

In an embodiment of the present disclosure, the second defrost connection path includes: a first electric two-position three-way valve 14 and a four-way reversing valve 12; the first heat exchanger 20 is connected with the compressor 11 of the defrosting assembly and the gas-liquid separator 13 connected with the compressor 11 sequentially through a first electric two-position three-way valve 14 and a four-way reversing valve 12.

In an embodiment of the present disclosure, the third defrost connection path includes: the defrosting device comprises a first three-way valve 18 (in a normally open state), a second electric two-position three-way valve 15 and a four-way reversing valve 12, wherein the second heat exchanger 21 is connected with a compressor 11 of the defrosting assembly and a gas-liquid separator 13 connected with the compressor 11 sequentially through the first three-way valve 18, the second electric two-position three-way valve 15 and the four-way reversing valve 12.

The control method under the defrosting mode is as follows, the air conditioner main control chip controls the left end of the first electric two-position three-way valve 14 to be opened, the left end of the second electric two-position three-way valve 15 to be opened, the left end of the third electric two-position three-way valve 16 to be opened, the left end of the fourth electric two-position three-way valve 17 to be opened, the outlet end of the four-way reversing valve 12 to be switched to the right side, and the compressor 11 to be opened; after being processed in the compressor 11, the refrigerant flows through the first heat exchanger 20 (for defrosting) through the four-way reversing valve 12, releases heat, then reaches the second heat exchanger 21 through the electronic expansion valve 24, absorbs heat, then flows into the gas-liquid separator 13 and the compressor 11 through the four-way reversing valve 12 again, and repeatedly circulates to form a defrosting loop; the second heat exchanger 21 defrosts the first heat exchanger 20.

Meanwhile, in the present disclosure, the method of determining whether defrosting is completed includes: acquiring a sixth preset temperature of 3 ℃, and detecting the first temperature of the first heat exchanger 20 in real time; if the first temperature detected in real time is greater than or equal to the fourth preset temperature, the defrosting is determined to be finished; otherwise, it is determined that defrosting is not complete. If the heating is finished, the third heat exchanger 22 heats by controlling the first heat exchanger 20 and the first heating assembly.

For example, if the sixth preset temperature is 7 ℃, the first temperature of the first heat exchanger 20 is detected in real time to be greater than or equal to the sixth preset temperature of 7 ℃, and it is determined that defrosting is completed; otherwise, it is determined that defrosting is not complete.

Step S105: if the heating is finished, the third heat exchanger 22 heats by controlling the first heat exchanger 20 and the first heating assembly.

If the defrosting is completed, the third heat exchanger 22 heats by controlling the first heat exchanger 20 and the first heating assembly. Fig. 5 shows a schematic diagram of a control device of a second heating mode according to an embodiment of the present disclosure. In the present disclosure, the method for heating the third heat exchanger 22 by controlling the first heat exchanger 20 and the first heating assembly includes:

controlling to open a first heating connection passage of the first heat exchanger 20 and the third heat exchanger 22, controlling to open a second heating connection passage of the first heat exchanger 20, the compressor 11 of the first heating assembly and the gas-liquid separator 13 connected with the compressor 11, and controlling to open a third heating connection passage of the third heat exchanger 22, the compressor 11 and the gas-liquid separator 13 connected with the compressor 11;

the refrigerant in the first heating connecting passage releases heat in the third heat exchanger 22, the refrigerant sequentially enters the gas-liquid separator 13 and the compressor 11 through the second heating connecting passage, the refrigerant enters the first heat exchanger 20 through the third heating connecting passage to absorb heat, and the refrigerant is repeatedly circulated to form a heating circuit.

Referring to fig. 5, in the embodiment of the present disclosure, a method for heating the third heat exchanger 22 by controlling the first heat exchanger 20 and the first heating element is described in more detail.

In an embodiment of the present disclosure, the first heating connection path includes: the first heat exchanger 20 is connected with the third heat exchanger 22 sequentially through the third electric two-position three-way valve 16, the electronic expansion valve 24 and the fourth electric two-position three-way valve 17.

In an embodiment of the present disclosure, the second heating connection path includes: the first heat exchanger 20 is connected with the compressor 11 of the first heating assembly and the gas-liquid separator 13 connected with the compressor 11 sequentially through the first electric two-position three-way valve 14 and the four-way reversing valve 12

In an embodiment of the present disclosure, the third heating connection path includes: the third heat exchanger 22 is connected with the compressor 11 and the gas-liquid separator 13 connected with the compressor 11 sequentially through the second electric two-position three-way valve 15 and the four-way reversing valve 12.

The specific control method for heating the third heat exchanger 22 by controlling the first heat exchanger 20 and the first heating assembly is as follows, when the ambient temperature t0 is greater than or equal to 0 ℃, and the temperature t1 of the second heat exchanger 21 is less than 20 ℃, the air conditioner enters a second heating mode, at this time, the air conditioner main control chip 29 controls the opening of the left end of the first electric two-position three-way valve 14, the opening of the right end of the second electric two-position three-way valve 15, the opening of the left end of the third electric two-position three-way valve 16, the opening of the right end of the fourth electric two-position three-way valve 17, the switching of the outlet end of the four-way reversing valve 12 to the left side, and the opening of the compressor 11; at this time, after the refrigerant is processed in the compressor 11, the refrigerant passes through the four-way selector valve 12, flows through the third heat exchanger 22, releases heat, passes through the electronic expansion valve 24, reaches the first heat exchanger 20, absorbs heat, then flows through the four-way selector valve 12 again, flows into the gas-liquid separator 13 and the compressor 11, and is repeatedly circulated to form a heating circuit.

And if the second temperature is greater than or equal to the first preset temperature, starting heating and determining a first heating mode. Fig. 6 shows a schematic diagram of a control device of a first heating mode according to an embodiment of the present disclosure. As shown in fig. 6, the method for heating the third heat exchanger 22 by controlling the second heat exchanger 21 and the second heating element in the first heating mode includes:

controlling to open a fourth heating connection path of the second heat exchanger 21 and the third heat exchanger 22, controlling to open a fifth heating connection path of the second heat exchanger 21 and the compressor 11 of the second heating assembly and the gas-liquid separator 13 connected with the compressor 11, and controlling to open a sixth heating connection path of the second heat exchanger 21 and the compressor 11 and the gas-liquid separator 13 connected with the compressor 11;

the refrigerant in the fourth heating connecting passage releases heat in the third heat exchanger 22, the refrigerant sequentially enters the gas-liquid separator 13 and the compressor 11 through the fifth heating connecting passage, the refrigerant enters the second heat exchanger 21 through the sixth heating connecting passage to absorb heat, and the refrigerant is repeatedly circulated to form a heating circuit.

In an embodiment of the present disclosure, the fourth heating connection path includes: a second three-way valve 19 (normally open), a third electric two-position three-way valve 16, an electronic expansion valve 24, and a fourth electric two-position three-way valve 17,

the second heat exchanger 21 is connected to the third heat exchanger 22 sequentially through a second three-way valve 19, a third electric two-position three-way valve 16, an electronic expansion valve 24, and a fourth electric two-position three-way valve 17. A PTC thermistor 23 (heating element) and a second heat dissipation fan 26 are provided beside the third heat exchanger 22.

In an embodiment of the present disclosure, the fifth thermal connecting path includes: a first electric two-position three-way valve 14 and a four-way reversing valve 12; the second heat exchanger 21 is connected with the compressor 11 of the second heating assembly and the gas-liquid separator 13 connected with the compressor 11 sequentially through the first electric two-position three-way valve 14 and the four-way reversing valve 12

In an embodiment of the present disclosure, the sixth heating connection path includes: the second heat exchanger 21 is connected with the compressor 11 and the gas-liquid separator 13 connected with the compressor 11 sequentially through the second electric two-position three-way valve 15 and the four-way reversing valve 12.

The specific control method for heating the third heat exchanger 22 by controlling the second heat exchanger 21 and the second heating assembly is as follows, when the temperature t1 of the second heat exchanger 21 is more than or equal to 20 ℃, the air conditioner enters a first heating mode, and at the moment, the air conditioner main control chip 29 controls the opening of the right end of the first electric two-position three-way valve 14, the opening of the right end of the second electric two-position three-way valve 15, the opening of the right end of the third electric two-position three-way valve 16, the opening of the right end of the fourth electric two-position three-way valve 17, the switching of the outlet end of the four-way reversing valve 12 to the left side, and the opening of the compressor 11; the inner channels of the first three-way valve 18 and the second three-way valve 19 are opened in two directions; at this time, after the refrigerant is processed in the compressor 11, the refrigerant passes through the four-way selector valve 12, flows through the third heat exchanger 22, releases heat, passes through the electronic expansion valve 24, reaches the second heat exchanger 21, absorbs heat, then flows through the four-way selector valve 12 again, flows into the gas-liquid separator 13 and the compressor 11, and is repeatedly circulated to form a heating circuit.

Fig. 7 shows a schematic diagram of a control device in a cooling mode according to an embodiment of the disclosure. As shown in fig. 7, a refrigeration control signal is received, and the third heat exchanger 22 is controlled to perform refrigeration by controlling the first heat exchanger 20 and the refrigeration assembly according to the refrigeration control signal. It should be noted that the heat pump air conditioner can only execute one mode of the heating control signal or the cooling control signal, and can be switched.

In the present disclosure, the method for controlling the first heat exchanger 20 and the refrigeration assembly to refrigerate the third heat exchanger 22 according to the refrigeration control signal includes:

controlling to open a first refrigeration connecting passage of the first heat exchanger 20 and the third heat exchanger 22, controlling to open a second refrigeration connecting passage of the third heat exchanger 22 and the compressor 11 of the refrigeration thermal assembly and the gas-liquid separator 13 connected with the compressor 11, and controlling to open a third refrigeration connecting passage of the first heat exchanger 20 and the compressor 11 and the gas-liquid separator 13 connected with the compressor 11;

the refrigerant in the first refrigeration connecting passage releases heat in the first heat exchanger 20, the refrigerant sequentially enters the gas-liquid separator 13 and the compressor 11 through the second refrigeration connecting passage, the refrigerant enters the third heat exchanger 22 through the third refrigeration connecting passage to absorb heat, and the refrigerant repeatedly circulates to form a refrigeration circuit.

In an embodiment of the present disclosure, the first refrigerant connection path includes: the first heat exchanger 20 is connected with the third heat exchanger 22 sequentially through the third electric two-position three-way valve 16, the electronic expansion valve 24 and the fourth electric two-position three-way valve 17.

In an embodiment of the present disclosure, the second refrigerant connection path includes: a second electric two-position three-way valve 15 and a four-way reversing valve 12; the third heat exchanger 22 is connected with the compressor 11 of the cooling and heating assembly and the gas-liquid separator 13 connected with the compressor 11 sequentially through a second electric two-position three-way valve 15 and a four-way reversing valve 12.

In an embodiment of the present disclosure, the third refrigerant connecting passage includes: a first electric two-position three-way valve 14 and a four-way reversing valve 12; the first heat exchanger 20 is connected to the compressor 11 and the gas-liquid separator 13 connected to the compressor 11 sequentially via a first electric two-position three-way valve 14 and a four-way selector valve 12.

The following description is provided by a specific control method for controlling the first heat exchanger 20 and the refrigeration assembly to enable the third heat exchanger 22 to refrigerate: when the air conditioner main control chip 29 receives a refrigeration signal, the air conditioner main control chip 29 controls the left end of the first electric two-position three-way valve 14 to be opened, the right end of the second electric two-position three-way valve 15 to be opened, the left end of the third electric two-position three-way valve 16 to be opened, the right end of the fourth electric two-position three-way valve 17 to be opened, the outlet end of the four-way reversing valve 12 to be switched to the right side, and the compressor 11 to be opened; at this time, after the refrigerant is processed in the compressor 11, the refrigerant passes through the four-way selector valve 12, flows through the first heat exchanger 20, releases heat, passes through the electronic expansion valve 24, reaches the third heat exchanger 22, absorbs heat, then flows into the gas-liquid separator 13 and the compressor 11 through the four-way selector valve 12 again, and the refrigerant repeatedly circulates to form a refrigeration circuit.

In this disclosure, the control method further includes: acquiring a wind speed signal, a temperature signal and an illumination signal of the solar power generation panel; if the wind speed signal is greater than or equal to the set wind speed, controlling to start a wind power generation mode; otherwise, controlling to close the wind power generation mode; and if the temperature signal is greater than the seventh preset temperature and the illumination signal exists, controlling to start the solar power generation mode, otherwise, controlling to stop the solar power generation mode. The heat pump air conditioner utilizes wind energy and solar energy as energy sources of the heat pump air conditioner, avoids the direct energy supply of the main battery 6 of the automobile to the heat pump air conditioner, greatly reduces the energy consumption of the main battery 6 of the automobile, and can prolong the running distance of the electric automobile.

For example, the seventh preset temperature is 47 ℃, the set wind speed is v ═ 5m/s, and if the wind speed signal is greater than or equal to the set wind speed of 5m/s, the wind power generation mode is controlled to be started; otherwise, controlling to close the wind power generation mode; and if the temperature signal is higher than the seventh preset temperature of 47 ℃ and the illumination signal exists, controlling to start the solar power generation mode, otherwise, controlling to stop the solar power generation mode.

Detecting the voltage value of a storage battery 7 connected with a circuit corresponding to the wind power generation mode and the solar power generation mode in real time in the wind power generation mode and/or the solar power generation mode; if the voltage value is greater than or equal to a first set voltage value, controlling to charge the main battery 6 connected with the circuit corresponding to the wind power generation mode and the solar power generation mode, and stopping charging the storage battery 7; and if the voltage value is less than or equal to a second set voltage value, controlling the storage battery 7 connected with the circuit corresponding to the wind power generation mode and the solar power generation mode to be charged, and stopping charging the main battery 6. Wherein the first set voltage value may be 12.38v, and the second set voltage value may be 9.6 v. The main battery 6 is a battery for driving the automobile, the storage battery 7 is a power supply of the heat pump air conditioner, and the electric quantity of the main battery 6 is used when the electric quantity of the storage battery 6 is insufficient.

Specifically, in the embodiment of the present disclosure, when the anemometer measures the wind speed v equal to 5m/s, the air conditioner main control chip 29 receives the speed signal, and then controls to start the wind power generation mode, and controls the first power controller 4 to operate according to the judgment of the voltage value measured by the voltmeter, so as to supply the direct current obtained by the impeller 1 driving the transmission device 2 to the storage battery 7 or the main battery 6. The process of judging according to the voltage value measured by the voltmeter is as follows: when the voltmeter measures that the voltage of the storage battery 7 reaches 12.38v, the first electric power controller 28 will transmit the surplus electric power to the main battery 6 of the automobile to continue charging; when the battery charge is below 9.6v, the second power controller 28 switches the line to charge the battery 7.

Specifically, in the embodiment of the present disclosure, when the temperature of the solar power generation panel is less than or equal to 47 ℃ and the panel is illuminated, the air conditioner main control chip 29 receives the temperature signal and the light sensation signal, and then controls to start the solar power generation mode, and controls the first power controller 4 to operate according to the judgment of the temperature value measured by the temperature sensor, so as to supply the obtained direct current to the storage battery or the main battery. When the temperature of the solar power generation panel is more than or equal to 47 ℃ or no light is emitted, the air conditioner main control chip controls the solar power generation mode to be closed after receiving the temperature signal and the light sensation signal. Meanwhile, when the voltmeter measures that the voltage of the storage battery 7 reaches 12.38v, the first electric power controller 28 will transmit the surplus electric energy to the automobile main battery 6 to continue charging; when the battery charge is below 9.6v, the second power controller 28 switches the line to charge the battery 7.

More specifically, thermocouple temperature sensors are arranged on the ribs of the first heat exchanger 20, in the heat accumulator of the second heat exchanger 21, in the solar power generation panel 9, in the automobile and at proper positions outside the automobile, a light sensor and an air speed sensor are additionally arranged at proper positions outside the automobile, a storage battery is provided with a voltmeter, and the sensors are connected with a main control chip of the air conditioning system through circuits; the temperature sensor measures that the temperature value of the solar power generation panel is greater than or equal to 47 ℃, and when the solar power generation panel is illuminated, the air conditioner main control chip 29 controls to start the solar power generation mode and control the first power controller 4 to act after receiving the temperature signal and the light sensation signal, and the obtained direct current is supplied to the storage battery or the main battery; the temperature sensor measures that the temperature value of the solar power generation panel is less than 47 ℃, or when no light exists, the air conditioner main control chip controls the solar power generation mode to be closed after receiving the temperature signal and the light sensation signal.

The above description shows the charge switching control method of the main battery 6 and the storage battery 7 in which both the first electric quantity of the main battery 6 and the second electric quantity of the storage battery 7 are greater than or equal to the respective preset low electric quantities. Meanwhile, since the storage battery 7 has a characteristic of fast charging, and the main battery 6 charges slower, in a case where the first electric quantity of the main battery 6 and the second electric quantity of the storage battery 7 are both smaller than respective preset low electric quantities. The present disclosure further provides a method for regulating and controlling the electric quantity of the main battery 6 and the storage battery 7 so as to meet the requirement of preferential defrosting. The electric quantity regulation and control method comprises the following steps: after receiving the heating control signal, detecting the first electric quantity of the main battery 6 and the second electric quantity of the storage battery 7 in real time; if the first electric quantity is less than a first preset low electric quantity and the second electric quantity is less than a second preset low electric quantity, determining whether the first heat exchanger 20 needs defrosting according to the heating mode and the first temperature; if defrosting is needed, determining defrosting time according to the first temperature of the first heat exchanger 20 and the environment temperature, and determining electric quantity needed by defrosting according to the defrosting time; if the second electric quantity is larger than the electric quantity required for defrosting, the main battery 6 is charged preferentially; otherwise, the battery 7 is charged preferentially.

In an embodiment of the present disclosure, the method for determining the defrosting time according to the first temperature of the first heat exchanger 20 and the ambient temperature includes: acquiring a preset defrosting time fitting function y-f (x1, x 2); and determining the defrosting time according to the first temperature, the environment temperature and a preset defrosting time fitting function.

In an embodiment of the present disclosure, before determining the defrosting time according to the first temperature of the first heat exchanger 20 and the ambient temperature, it is required to determine the preset defrosting time fitting curve, and the method includes: acquiring defrosting times at different first temperatures x1 and different ambient temperatures x2 in the experimental process; and obtaining a preset defrosting time fitting function by adopting a data fitting method based on the different defrosting times corresponding to the first temperature and the environment temperature. And when the defrosting time is determined, bringing the ambient temperature acquired after the heating control signal is received and the first temperature of the first heat exchanger 20 into a preset defrosting time fitting function to obtain the defrosting time.

In an embodiment of the present disclosure, a method for determining an amount of power required for defrosting according to the defrosting time includes: and acquiring the power of the heat pump air conditioner in a defrosting mode, and acquiring the electric quantity required by defrosting according to the power and the defrosting time. The power of the heat pump air conditioner in the defrosting mode is a fixed value and can be measured in advance.

The detailed description of the control method can be seen in detail, where a heating mode is determined according to the heating control signal, the second temperature and the ambient temperature, and whether defrosting is required for the first heat exchanger 20 is determined according to the heating mode and the first temperature. The values of the first preset low level and the second preset low level may be set according to the types and capacities of the main battery 6 and the storage battery 7. For example, the values of the first preset low battery level and the second preset low battery level may be set to 20% of the nominal capacities of the main battery 6 and the storage battery 7.

Fig. 8 shows a schematic diagram of a new energy power generation unit according to an embodiment of the disclosure. As shown in fig. 8, the impeller 1 is connected with the wind-driven dc generator 3 through the transmission device 2; the wind power direct current generator 3 is connected with the first power controller 4 through a circuit; the first power controller 4 is respectively connected with the anti-recoil diode 10, the first inverter 5 and the storage battery 7 through circuits; the solar power generation panel 9 is connected with the other end of the anti-recoil diode 10 through a circuit; the other end of the second inverter 5 is electrically connected with the automobile main battery 6; the other end of the main battery 6 of the automobile is connected with the third inverter 27 through a circuit; the third inverter 27 is electrically connected to the second power controller 28; the other end of the storage battery 7 is connected with the second inverter 8 through a circuit; the other end of the second inverter 8 is electrically connected to the second power controller 28.

In fig. 8, the power of the battery 7 is provided by the wind dc generator 3 and the solar panel 9; the energy of the heat pump air conditioning system is provided by the storage battery 7, and the automobile main battery 6 is used as supplement when the storage battery 7 is in short of electricity; the rotating shaft adopted by the impeller 1 is a vertical shaft, and the shaft is connected with the transmission device 2; the solar power generation panel 9 is a flexible solar power panel and can be well attached to the surface of the outer side of the automobile; the anti-recoil diode 10 can stabilize reverse current of the circuit and prevent the solar power generation panel 9 from being burnt out by the reverse current.

FIG. 9 shows a schematic diagram of a control system according to an embodiment of the present disclosure; in the present disclosure, a schematic diagram of a control system of a heat pump air conditioner is separately given, and detailed description thereof can be seen in fig. 3 to 8. The second power controller 28 is electrically connected to the compressor 11, the PTC thermistor 23, the air conditioner main control chip 29, the first heat dissipation fan 25, and the second heat dissipation fan 26, respectively; the air conditioner main control chip 29 is electrically connected to the first electric two-position three-way valve 14, the second electric two-position three-way valve 15, the third electric two-position three-way valve 16, the fourth electric two-position three-way valve 17, the first cooling fan 25, the second cooling fan 26, the first power controller 4, and the second power controller 28.

The temperature sensor is a thermocouple or a related product, and the light sensor consists of an optical path and a photoelectric element. The power controller 4 and the power controller 21 can turn on or off one or more circuits connected thereto after receiving the control signal of the main control chip 29; the wind driven generator 3 and the solar power generation panel 9 are connected with a first power controller; each power consumption component of the air conditioning system is connected with the second power controller; thermocouple temperature sensors are arranged on the ribs of the first heat exchanger 20, in the heat accumulator of the second heat exchanger 21, in the solar power generation panel 9, in the automobile and at proper positions outside the automobile, a light sensation sensor and an air speed sensor are additionally arranged at proper positions outside the automobile, a storage battery is provided with a voltmeter, and the sensors are connected with a main control chip of an air conditioning system through circuits.

Fig. 10 shows a schematic structural diagram of a second heat exchanger according to an embodiment of the present disclosure. Among them, fig. 10(a) shows a top view of the second heat exchanger according to an embodiment of the present disclosure, and fig. 10(b) shows a sectional view of fig. 10(a) along a-a direction. The present disclosure provides a specific structural diagram of the second heat exchanger 21, which can absorb and store the heat of the solar energy for heating and defrosting of the air conditioning system.

In the present disclosure, the second heat exchanger 21 includes, in order from the outer layer to the inner layer: the heat-insulation and heat-preservation type heat-preservation and heat-preservation combined pipe comprises a maintenance structure layer, a polystyrene heat-preservation layer, a lower layer plate, a phase change heat-storage material layer, a refrigerant conduit, an upper layer plate, a selective absorption material layer, an air layer and a permeable layer. Wherein, the lower layer plate can adopt a lower layer copper plate, the upper layer plate can adopt an upper layer copper plate, and the transparent layer can adopt ultra-white low-iron cloth-grain toughened glass.

In the embodiment of the present disclosure, after the sunlight shines on the surface of the second heat exchanger 21, firstly see through the ultra-white low-iron textured toughened glass, after the sunlight shines through the glass, shine on the selective absorption material layer, the selective absorption material layer turns into the light energy into heat energy rapidly, the copper surface temperature rises rapidly, because the good heat conductivity of copper, the heat can be fast conveyed to the refrigerant coil pipe of copper lower part from the copper surface, when the heat is sufficient, the surplus heat is absorbed and stored by the phase change heat storage material layer of copper lower part, when the heat is not enough, the phase change material releases the absorbed heat.

In the embodiment of the present disclosure, the second heat exchanger 21 has a phase change heat storage material layer therein, which absorbs and stores heat when the temperature is high and releases the stored heat when the temperature is low; the heat exchange coil and the copper plate in the second heat exchanger 21 are integrated or welded, and are in close contact with the copper plate; the surface of the copper plate in the second heat exchanger 21 is provided with a selective absorption material layer which is coated or electroplated and can well absorb the high-energy wavelength of sunlight and convert the high-energy wavelength into heat energy.

In the embodiment of the present disclosure, the ultra-white low-iron textured tempered glass in the second heat exchanger 21 has high transparency and high transparency to short waves in sunlight, and has high rebound resilience to long-wave radiation at lower temperature.

The heat pump air conditioner adopts the second heat exchanger 21 which can utilize solar energy for heating, in winter, the second heat exchanger 21 directly utilizes heat energy absorbed from sunlight, redundant heat energy is stored, when the heat of the second heat exchanger 21 is insufficient for heat supply, the stored heat energy is released, and the heat energy is circularly transmitted to the inside of the vehicle through the heat pump.

The main body of the control method of the heat pump air conditioner may be a control device of the heat pump air conditioner, for example, the control method of the heat pump air conditioner may be executed by a terminal device or a server or other processing device, wherein the terminal device may be a User Equipment (UE), a mobile device, a User terminal, a cellular phone, a cordless phone, a Personal Digital Assistant (PDA), a handheld device, a computing device, a vehicle-mounted device, a wearable device, or the like. In some possible implementations, the control method of the heat pump air conditioner may be implemented by a processor calling a computer readable instruction stored in a memory.

It will be understood by those skilled in the art that in the method of the present invention, the order of writing the steps does not imply a strict order of execution and any limitations on the implementation, and the specific order of execution of the steps should be determined by their function and possible inherent logic.

In the present disclosure, the control device for a heat pump air conditioner includes: the receiving and acquiring unit is used for receiving the heating control signal and acquiring the external environment temperature, the first temperature of the first heat exchanger 20 and the second temperature of the second heat exchanger 21; a heating mode and defrost determining unit, configured to determine a heating mode according to the heating control signal, the second temperature, and the ambient temperature, and determine whether the first heat exchanger 20 needs to defrost according to the heating mode and the first temperature; the starting condition determining unit is used for determining whether starting conditions for defrosting are met or not according to the environment temperature and the second temperature if defrosting is needed; the defrosting unit is used for controlling the second heat exchanger 21 and the defrosting assembly to defrost the first heat exchanger 20 and determining whether defrosting is finished or not if the starting condition of defrosting is met; and a heating unit for heating the third heat exchanger 22 by controlling the first heat exchanger 20 and the first heating unit when defrosting is completed.

In some embodiments, functions of or modules included in the apparatus provided in the embodiments of the present disclosure may be used to execute the method described in the above method embodiments, and specific implementation thereof may refer to the description of the above control method embodiments, and for brevity, will not be described again here.

Embodiments of the present disclosure also provide a computer-readable storage medium having stored thereon computer program instructions, which when executed by a processor, implement the above-mentioned method. The computer readable storage medium may be a non-volatile computer readable storage medium.

An embodiment of the present disclosure further provides an electronic device, including: a processor; a memory for storing processor-executable instructions; wherein the processor is configured as the above method. The electronic device may be provided as a terminal, server, or other form of device.

In addition, the present disclosure also provides an electric vehicle, characterized by including: an air conditioning unit, and/or a new energy power generation unit; the air conditioning unit adopts the control method of the heat pump air conditioner; or, the air conditioner comprises the control device of the heat pump air conditioner, and the air conditioner unit is connected with the control device; or, as above electronic device, the air conditioning unit is connected with the electronic device; or, as with the computer-readable storage medium described above, the air conditioning unit is connected to the computer-readable storage medium; the new energy power generation unit is connected with the air conditioning unit and used for supplying power to the air conditioning unit; the first heat exchanger 20 and the second heat exchanger 21 are installed on the outer side of the electric vehicle, and the third heat exchanger 22 is installed inside the electric vehicle; the air conditioning unit receives a heating control signal or a refrigerating control signal; according to the heating control signal, the third heat exchanger 22 is controlled to heat by controlling the first heat exchanger 20 and the first heating assembly, or the third heat exchanger 22 is controlled to heat by controlling the second heat exchanger 21 and the second heating assembly; and controlling the first heat exchanger 20 and the refrigeration assembly to refrigerate the third heat exchanger 22 according to the refrigeration control signal. For a specific implementation, reference may be made to the description of the embodiments of the control method and the control device, and for brevity, detailed description is omitted here.

In the automatic control unit of the automobile air conditioner, a control system monitors the temperature changes of the inside and outside of the automobile, the heat exchanger and the heat accumulator in real time through a temperature sensor, monitors the outdoor illumination condition through a light sensor, and detects the current wind speed through a wind speed sensor. And comparing the collected temperature information, illumination information and wind speed information with set parameters, outputting feedback signals according to the comparison result, wherein the feedback signals act on the electric power controller and each electric valve, and automatically switching the operation condition of the air conditioner through the action of the valve. Meanwhile, the signal receiver can also receive the remote control signal and control the automobile air conditioning system to operate under the required working condition.

Even under the condition that the automobile runs at low speed, the automobile can obtain larger energy, and the wind-solar heat pump air-conditioning system has the characteristics of stability and high efficiency. In winter in severe cold areas, the solar heat storage device of the second heat exchanger 21 can well absorb solar energy and store the solar energy in the heat storage material, and the heat pump air conditioner can directly utilize the heat of the part to achieve the effect of increasing the evaporation temperature of the air conditioning system in winter, thereby improving the heating efficiency of the automobile air conditioner. The second heat exchanger 21 solves the problem that the outdoor evaporator of the air conditioner frosts under the heating condition in winter in severe cold areas.

Fig. 11 is a block diagram illustrating an electronic device 800 in accordance with an example embodiment. For example, the electronic device 800 may be a mobile phone, a computer, a digital broadcast terminal, a messaging device, a game console, a tablet device, a medical device, a fitness device, a personal digital assistant, or the like terminal.

Referring to fig. 11, electronic device 800 may include one or more of the following components: processing component 802, memory 804, power component 806, multimedia component 808, audio component 810, input/output (I/O) interface 812, sensor component 814, and communication component 816.

The processing component 802 generally controls overall operation of the electronic device 800, such as operations associated with display, telephone calls, data communications, camera operations, and recording operations. The processing components 802 may include one or more processors 820 to execute instructions to perform all or a portion of the steps of the methods described above. Further, the processing component 802 can include one or more modules that facilitate interaction between the processing component 802 and other components. For example, the processing component 802 can include a multimedia module to facilitate interaction between the multimedia component 808 and the processing component 802.

The memory 804 is configured to store various types of data to support operations at the electronic device 800. Examples of such data include instructions for any application or method operating on the electronic device 800, contact data, phonebook data, messages, pictures, videos, and so forth. The memory 804 may be implemented by any type or combination of volatile or non-volatile memory devices such as Static Random Access Memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable read-only memory (PROM), read-only memory (ROM), magnetic memory, flash memory, magnetic or optical disks.

The power supply component 806 provides power to the various components of the electronic device 800. The power components 806 may include a power management system, one or more power supplies, and other components associated with generating, managing, and distributing power for the electronic device 800.

The multimedia component 808 includes a screen that provides an output interface between the electronic device 800 and a user. In some embodiments, the screen may include a Liquid Crystal Display (LCD) and a Touch Panel (TP). If the screen includes a touch panel, the screen may be implemented as a touch screen to receive an input signal from a user. The touch panel includes one or more touch sensors to sense touch, slide, and gestures on the touch panel. The touch sensor may not only sense the boundary of a touch or slide action, but also detect the duration and pressure associated with the touch or slide operation. In some embodiments, the multimedia component 808 includes a front facing camera and/or a rear facing camera. The front camera and/or the rear camera may receive external multimedia data when the electronic device 800 is in an operation mode, such as a shooting mode or a video mode. Each front camera and rear camera may be a fixed optical lens system or have a focal length and optical zoom capability.

The audio component 810 is configured to output and/or input audio signals. For example, the audio component 810 includes a Microphone (MIC) configured to receive external audio signals when the electronic device 800 is in an operational mode, such as a call mode, a recording mode, and a voice recognition mode. The received audio signals may further be stored in the memory 804 or transmitted via the communication component 816. In some embodiments, audio component 810 also includes a speaker for outputting audio signals.

The I/O interface 812 provides an interface between the processing component 802 and peripheral interface modules, which may be keyboards, click wheels, buttons, etc. These buttons may include, but are not limited to: a home button, a volume button, a start button, and a lock button.

The sensor assembly 814 includes one or more sensors for providing various aspects of state assessment for the electronic device 800. For example, the sensor assembly 814 may detect an open/closed state of the electronic device 800, the relative positioning of components, such as a display and keypad of the electronic device 800, the sensor assembly 814 may also detect a change in the position of the electronic device 800 or a component of the electronic device 800, the presence or absence of user contact with the electronic device 800, orientation or acceleration/deceleration of the electronic device 800, and a change in the temperature of the electronic device 800. Sensor assembly 814 may include a proximity sensor configured to detect the presence of a nearby object without any physical contact. The sensor assembly 814 may also include a light sensor, such as a CMOS or CCD image sensor, for use in imaging applications. In some embodiments, the sensor assembly 814 may also include an acceleration sensor, a gyroscope sensor, a magnetic sensor, a pressure sensor, or a temperature sensor.

The communication component 816 is configured to facilitate wired or wireless communication between the electronic device 800 and other devices. The electronic device 800 may access a wireless network based on a communication standard, such as WiFi, 2G or 3G, or a combination thereof. In an exemplary embodiment, the communication component 816 receives a broadcast signal or broadcast related information from an external broadcast management system via a broadcast channel. In an exemplary embodiment, the communication component 816 further includes a Near Field Communication (NFC) module to facilitate short-range communications. For example, the NFC module may be implemented based on Radio Frequency Identification (RFID) technology, infrared data association (IrDA) technology, Ultra Wideband (UWB) technology, Bluetooth (BT) technology, and other technologies.

In an exemplary embodiment, the electronic device 800 may be implemented by one or more Application Specific Integrated Circuits (ASICs), Digital Signal Processors (DSPs), Digital Signal Processing Devices (DSPDs), Programmable Logic Devices (PLDs), Field Programmable Gate Arrays (FPGAs), controllers, micro-controllers, microprocessors or other electronic components for performing the above-described methods.

In an exemplary embodiment, a non-transitory computer-readable storage medium, such as the memory 804, is also provided that includes computer program instructions executable by the processor 820 of the electronic device 800 to perform the above-described methods.

Fig. 12 is a block diagram illustrating an electronic device 1900 according to an example embodiment. For example, the electronic device 1900 may be provided as a server. Referring to fig. 12, electronic device 1900 includes a processing component 1922 further including one or more processors and memory resources, represented by memory 1932, for storing instructions, e.g., applications, executable by processing component 1922. The application programs stored in memory 1932 may include one or more modules that each correspond to a set of instructions. Further, the processing component 1922 is configured to execute instructions to perform the above-described method.

The electronic device 1900 may also include a power component 1926 configured to perform power management of the electronic device 1900, a wired or wireless network interface 1950 configured to connect the electronic device 1900 to a network, and an input/output (I/O) interface 1958. The electronic device 1900 may operate based on an operating system stored in memory 1932, such as Windows Server, Mac OS XTM, UnixTM, LinuxTM, FreeBSDTM, or the like.

In an exemplary embodiment, a non-transitory computer readable storage medium, such as the memory 1932, is also provided that includes computer program instructions executable by the processing component 1922 of the electronic device 1900 to perform the above-described methods.

The present disclosure may be systems, methods, and/or computer program products. The computer program product may include a computer-readable storage medium having computer-readable program instructions embodied thereon for causing a processor to implement various aspects of the present disclosure.

The computer readable storage medium may be a tangible device that can hold and store the instructions for use by the instruction execution device. The computer readable storage medium may be, for example, but not limited to, an electronic memory device, a magnetic memory device, an optical memory device, an electromagnetic memory device, a semiconductor memory device, or any suitable combination of the foregoing. More specific examples (a non-exhaustive list) of the computer readable storage medium would include the following: a portable computer diskette, a hard disk, a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), a Static Random Access Memory (SRAM), a portable compact disc read-only memory (CD-ROM), a Digital Versatile Disc (DVD), a memory stick, a floppy disk, a mechanical coding device, such as punch cards or in-groove projection structures having instructions stored thereon, and any suitable combination of the foregoing. Computer-readable storage media as used herein is not to be construed as transitory signals per se, such as radio waves or other freely propagating electromagnetic waves, electromagnetic waves propagating through a waveguide or other transmission medium (e.g., optical pulses through a fiber optic cable), or electrical signals transmitted through electrical wires.

The computer-readable program instructions described herein may be downloaded from a computer-readable storage medium to a respective computing/processing device, or to an external computer or external storage device via a network, such as the internet, a local area network, a wide area network, and/or a wireless network. The network may include copper transmission cables, fiber optic transmission, wireless transmission, routers, firewalls, switches, gateway computers and/or edge servers. The network adapter card or network interface in each computing/processing device receives computer-readable program instructions from the network and forwards the computer-readable program instructions for storage in a computer-readable storage medium in the respective computing/processing device.

The computer program instructions for carrying out operations of the present disclosure may be assembler instructions, Instruction Set Architecture (ISA) instructions, machine-related instructions, microcode, firmware instructions, state setting data, or source or object code written in any combination of one or more programming languages, including an object oriented programming language such as Smalltalk, C + + or the like and conventional procedural programming languages, such as the "C" programming language or similar programming languages. The computer-readable program instructions may execute entirely on the user's computer, partly on the user's computer, as a stand-alone software package, partly on the user's computer and partly on a remote computer or entirely on the remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a Local Area Network (LAN) or a Wide Area Network (WAN), or the connection may be made to an external computer (for example, through the Internet using an Internet service provider). In some embodiments, the electronic circuitry that can execute the computer-readable program instructions implements aspects of the present disclosure by utilizing the state information of the computer-readable program instructions to personalize the electronic circuitry, such as a programmable logic circuit, a Field Programmable Gate Array (FPGA), or a Programmable Logic Array (PLA).

Various aspects of the present disclosure are described herein with reference to flowchart illustrations and/or block diagrams of methods, apparatus (systems) and computer program products according to embodiments of the disclosure. It will be understood that each block of the flowchart illustrations and/or block diagrams, and combinations of blocks in the flowchart illustrations and/or block diagrams, can be implemented by computer-readable program instructions.

These computer-readable program instructions may be provided to a processor of a general purpose computer, special purpose computer, or other programmable data processing apparatus to produce a machine, such that the instructions, which execute via the processor of the computer or other programmable data processing apparatus, create means for implementing the functions/acts specified in the flowchart and/or block diagram block or blocks. These computer-readable program instructions may also be stored in a computer-readable storage medium that can direct a computer, programmable data processing apparatus, and/or other devices to function in a particular manner, such that the computer-readable medium storing the instructions comprises an article of manufacture including instructions which implement the function/act specified in the flowchart and/or block diagram block or blocks.

The computer readable program instructions may also be loaded onto a computer, other programmable data processing apparatus, or other devices to cause a series of operational steps to be performed on the computer, other programmable apparatus or other devices to produce a computer implemented process such that the instructions which execute on the computer, other programmable apparatus or other devices implement the functions/acts specified in the flowchart and/or block diagram block or blocks.

The flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of systems, methods and computer program products according to various embodiments of the present disclosure. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of instructions, which comprises one or more executable instructions for implementing the specified logical function(s). In some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.

Having described embodiments of the present disclosure, the foregoing description is intended to be exemplary, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen in order to best explain the principles of the embodiments, the practical application, or improvements made to the technology in the marketplace, or to enable others of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A control method of a heat pump air conditioner, characterized by comprising:

receiving a heating control signal and acquiring the external environment temperature, the first temperature of the first heat exchanger (20) and the second temperature of the second heat exchanger (21);

determining a heating mode based on the heating control signal, the second temperature, and the ambient temperature, and determining whether the first heat exchanger (20) requires defrosting based on the heating mode and the first temperature;

if the starting condition of defrosting is met, controlling the second heat exchanger (21) and the defrosting assembly to defrost the first heat exchanger (20), and determining whether defrosting is finished;

if the operation is finished, the third heat exchanger (22) is used for heating by controlling the first heat exchanger (20) and the first heating assembly;

wherein the method for determining the heating mode according to the heating control signal, the second temperature and the ambient temperature comprises:

in the first heating mode, a third heat exchanger (22) is used for heating by controlling the second heat exchanger (21) and the second heating assembly;

in the second heating mode, heating is carried out on a third heat exchanger (22) by controlling the first heat exchanger (20) and the first heating assembly;

and in the third heating mode, the second heat radiation fan (26) and the heating component are used for heating by controlling and starting the second heat radiation fan (26) and the power supply of the heating component.

2. The control method of claim 1, wherein said method of determining whether said first heat exchanger (20) requires defrosting based on said heating mode and said first temperature comprises:

acquiring a third preset temperature in the second heating mode;

determining that the first heat exchanger (20) needs defrosting if the first temperature is less than or equal to the third preset temperature; otherwise, the first heat exchanger (20) does not require defrosting;

and/or, the method for heating the third heat exchanger (22) by controlling the second heat exchanger (21) and the second heating assembly in the first heating mode comprises the following steps:

controlling to open a fourth heating connecting passage of the second heat exchanger (21) and the third heat exchanger (22), controlling to open a fifth heating connecting passage of the second heat exchanger (21) and a compressor (11) of the second heating assembly and a gas-liquid separator (13) connected with the compressor (11), and controlling to open a sixth heating connecting passage of the second heat exchanger (21) and the compressor (11) and the gas-liquid separator (13) connected with the compressor (11);

the refrigerant in the fourth heating connecting passage releases heat in the third heat exchanger (22), the refrigerant sequentially enters the gas-liquid separator (13) and the compressor (11) through a fifth heating connecting passage, the refrigerant enters the second heat exchanger (21) through the sixth heating connecting passage to absorb heat, and the refrigerant repeatedly circulates to form a heating circuit.

3. The control method according to any one of claims 1-2, wherein the method of determining whether or not the defrosting activation condition is satisfied based on the ambient temperature and the second temperature includes:

and/or the presence of a gas in the interior of the container,

the method of determining whether defrosting is complete includes: acquiring a sixth preset temperature, and detecting the first temperature of the first heat exchanger (20) in real time;

4. The control method according to any one of claims 1-2, characterized in that if the starting condition for defrosting is not satisfied, a corresponding instruction corresponding to the starting condition for defrosting is fed back;

and/or the presence of a gas in the interior of the container,

receiving a refrigeration control signal, and controlling the first heat exchanger (20) and the refrigeration assembly to enable the third heat exchanger (22) to refrigerate according to the refrigeration control signal;

and/or the presence of a gas in the interior of the container,

the method for controlling the second heat exchanger (21) and the defrosting assembly to defrost the first heat exchanger (20) if the starting condition of defrosting is met comprises the following steps:

controlling to open a first defrosting connection passage of the first heat exchanger (20) and the second heat exchanger (21), controlling to open a second defrosting connection passage of the first heat exchanger (20) and a compressor (11) of the defrosting assembly and a gas-liquid separator (13) connected with the compressor (11), and controlling to open a third defrosting connection passage of the second heat exchanger (21) and the compressor (11) and the gas-liquid separator (13) connected with the compressor (11);

the refrigerant in the first defrosting connection passage releases heat in the first heat exchanger (20), the refrigerant enters the gas-liquid separator (13) and the compressor (11) in sequence through a second defrosting connection passage, the refrigerant enters the second heat exchanger (21) through a third defrosting connection passage again to absorb heat, and the refrigerant repeatedly circulates to form a defrosting circuit;

and/or the presence of a gas in the interior of the container,

the method for heating the third heat exchanger (22) by controlling the first heat exchanger (20) and the first heating assembly comprises the following steps:

controlling to open a first heating connecting passage of the first heat exchanger (20) and the third heat exchanger (22), controlling to open a second heating connecting passage of the first heat exchanger (20) and a compressor (11) of the first heating assembly and a gas-liquid separator (13) connected with the compressor (11), and controlling to open a third heating connecting passage of the third heat exchanger (22) and the compressor (11) and the gas-liquid separator (13) connected with the compressor (11);

the refrigerant in the first heating connecting passage releases heat in the third heat exchanger (22), the refrigerant sequentially enters the gas-liquid separator (13) and the compressor (11) through the second heating connecting passage, the refrigerant enters the first heat exchanger (20) through the third heating connecting passage to absorb heat, and the refrigerant repeatedly circulates to form a heating loop;

and/or the presence of a gas in the interior of the container,

the second heat exchanger (21) comprises, in order from the outer layer to the inner layer: the heat-insulation and heat-preservation type heat-preservation and heat-preservation combined pipe comprises a maintenance structure layer, a polystyrene heat-preservation layer, a lower layer plate, a phase change heat-storage material layer, a refrigerant conduit, an upper layer plate, a selective absorption material layer, an air layer and a permeable layer.

5. The control method according to claim 4, wherein in the wind power generation mode and/or the solar power generation mode, a voltage value of a storage battery (7) connected to the wind power generation mode and the solar power generation mode corresponding circuit is detected in real time;

if the voltage value is larger than or equal to a first set voltage value, controlling to charge a main battery (6) connected with a circuit corresponding to the wind power generation mode and the solar power generation mode, and stopping charging the storage battery (7);

if the voltage value is less than or equal to a second set voltage value, controlling to charge a storage battery (7) connected with a circuit corresponding to the wind power generation mode and the solar power generation mode, and stopping charging the main battery (6);

and/or the presence of a gas in the interior of the container,

the method for controlling the first heat exchanger (20) and the refrigeration assembly to refrigerate the third heat exchanger (22) according to the refrigeration control signal comprises the following steps:

controlling to open a first refrigeration connecting passage of the first heat exchanger (20) and the third heat exchanger (22), controlling to open a second refrigeration connecting passage of the third heat exchanger (22) and a compressor (11) of the refrigeration assembly and a gas-liquid separator (13) connected with the compressor (11), and controlling to open a third refrigeration connecting passage of the first heat exchanger (20) and the compressor (11) and the gas-liquid separator (13) connected with the compressor (11);

the refrigerant in the first refrigeration connecting passage releases heat in the first heat exchanger (20), the refrigerant sequentially enters the gas-liquid separator (13) and the compressor (11) through the second refrigeration connecting passage, the refrigerant enters the third heat exchanger (22) through the third refrigeration connecting passage to absorb heat, and the refrigerant repeatedly circulates to form a refrigeration circuit.

6. A control device of a heat pump air conditioner, characterized by comprising:

the receiving and acquiring unit is used for receiving the heating control signal and acquiring the external environment temperature, the first temperature of the first heat exchanger (20) and the second temperature of the second heat exchanger (21);

a heating mode and defrost determination unit for determining a heating mode according to the heating control signal, the second temperature and the ambient temperature, and determining whether the first heat exchanger (20) needs defrosting according to the heating mode and the first temperature;

the defrosting unit is used for controlling the second heat exchanger (21) and the defrosting assembly to defrost the first heat exchanger (20) and determining whether defrosting is finished or not if the starting condition of defrosting is met;

the heating unit is used for controlling the first heat exchanger (20) and the first heating assembly to heat the third heat exchanger (22) if defrosting is finished;

wherein, the heating mode and defrosting determination unit is used for determining the heating mode according to the heating control signal, the second temperature and the environment temperature, and comprises:

7. An electronic device, comprising:

a processor;

a memory for storing processor-executable instructions;

wherein the processor is configured to invoke the memory-stored instructions to perform the control method of any one of claims 1 to 5.

8. A computer-readable storage medium having computer program instructions stored thereon, wherein the computer program instructions, when executed by a processor, implement the control method of any one of claims 1 to 5.

9. An electric vehicle, characterized by comprising: an air conditioning unit, a third heat exchanger (22); and/or a new energy power generation unit;

the air conditioning unit applies the control method of the heat pump air conditioner according to any one of claims 1 to 5; or, include the controlling device of the air conditioner of the heat pump of claim 6, the said air conditioning unit is connected with said controlling device; or, as in claim 7, the air conditioning unit is connected to the electronic device; or, the computer readable storage medium of claim 8, the air conditioning unit being connected to the computer readable storage medium;

the first heat exchanger (20) and the second heat exchanger (21) are installed on the outer side of an electric vehicle, and the third heat exchanger (22) is installed in the electric vehicle;

according to the heating control signal, the third heat exchanger (22) is controlled to heat through controlling the first heat exchanger (20) and the first heating assembly, or the third heat exchanger (22) is controlled to heat through controlling the second heat exchanger (21) and the second heating assembly;

and controlling the first heat exchanger (20) and the refrigeration assembly to refrigerate the third heat exchanger (22) according to the refrigeration control signal.