CN110500746B - Method for controlling opening of electronic expansion valve of air conditioner - Google Patents
Method for controlling opening of electronic expansion valve of air conditioner Download PDFInfo
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- CN110500746B CN110500746B CN201810481216.2A CN201810481216A CN110500746B CN 110500746 B CN110500746 B CN 110500746B CN 201810481216 A CN201810481216 A CN 201810481216A CN 110500746 B CN110500746 B CN 110500746B
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- 238000000034 method Methods 0.000 title claims abstract description 41
- 230000007704 transition Effects 0.000 claims description 12
- 230000000630 rising effect Effects 0.000 claims description 2
- 238000010438 heat treatment Methods 0.000 abstract description 9
- 238000001816 cooling Methods 0.000 abstract description 4
- 238000007599 discharging Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 230000000977 initiatory effect Effects 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 238000002474 experimental method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000001052 transient effect Effects 0.000 description 1
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/50—Control or safety arrangements characterised by user interfaces or communication
- F24F11/61—Control or safety arrangements characterised by user interfaces or communication using timers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/62—Control or safety arrangements characterised by the type of control or by internal processing, e.g. using fuzzy logic, adaptive control or estimation of values
- F24F11/63—Electronic processing
- F24F11/64—Electronic processing using pre-stored data
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F11/00—Control or safety arrangements
- F24F11/70—Control systems characterised by their outputs; Constructional details thereof
- F24F11/80—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air
- F24F11/83—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers
- F24F11/84—Control systems characterised by their outputs; Constructional details thereof for controlling the temperature of the supplied air by controlling the supply of heat-exchange fluids to heat-exchangers using valves
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- Mathematical Physics (AREA)
- Air Conditioning Control Device (AREA)
Abstract
The invention belongs to the technical field of air conditioners, and particularly provides a method for controlling the opening of an electronic expansion valve of an air conditioner. The invention aims to solve the problem of poor overall performance of the air conditioner caused by inflexible control of the opening of the electronic expansion valve in the initial operation stage of the conventional air conditioner. The invention discloses a method for controlling the opening of an electronic expansion valve of an air conditioner, which comprises the following steps: determining a target opening degree of the electronic expansion valve; the opening degree of the electronic expansion valve is made to reach the target opening degree in a staged manner; the target opening degree is the opening degree of the electronic expansion valve after the air conditioner is started for a preset running time. The arrangement improves the heating/cooling speed of the air conditioner at the initial stage of starting operation, improves the performance of the air conditioner at the initial stage of starting operation, and accurately controls the opening of the electronic expansion valve by a staged control method so as to ensure that the air-out temperature of the compressor can stably reach the target air-out temperature, thereby improving the use experience of the air conditioner.
Description
Technical Field
The invention belongs to the technical field of air conditioners, and particularly provides a method for controlling the opening of an electronic expansion valve of an air conditioner.
Background
The air conditioner is provided with an electronic expansion valve, a fixed initial opening degree is usually set for the electronic expansion valve to control the electronic expansion valve to operate according to the fixed initial opening degree at the initial starting stage of the air conditioner (such as the first few minutes of the starting operation of the air conditioner), and then the action of the electronic expansion valve is judged according to the comparison between the data received by the sensor and the preset parameters, so that the air conditioner can enter a stable operation stage. In order to ensure the operation stability of the air conditioner, the initial opening degree set by the current control method is generally set to an opening degree close to the final opening degree of the electronic expansion valve.
Since the opening degree of the electronic expansion valve is a fixed opening degree at the initial stage of starting the air conditioner, the following problems may occur at the initial stage of operation: the phenomenon that the temperature of the discharged air of the compressor is slowly increased due to the overlarge initial opening of the electronic expansion valve is set, so that the initial effect of the air conditioner on cooling/heating is poor; or the phenomenon that the air-discharging temperature of the compressor is increased quickly due to the fact that the initial opening degree of the electronic expansion valve is set to be too small can cause the phenomena of air-discharging protection of the air conditioner, insufficient heating capacity when the air conditioner is frosted and the like.
Accordingly, there is a need in the art for a new method of controlling the opening of an electronic expansion valve to solve the above problems.
Disclosure of Invention
In order to solve the above problems in the prior art, that is, to solve the problem of poor overall performance of the air conditioner caused by inflexible control of the opening of the electronic expansion valve at the initial operation stage of the existing air conditioner, on one hand, the invention provides a method for controlling the opening of the electronic expansion valve of the air conditioner, which comprises the following steps; determining a target opening degree of the electronic expansion valve; the opening degree of the electronic expansion valve is made to reach the target opening degree in a staged manner; and the target opening degree is the opening degree of the electronic expansion valve after the air conditioner starts the preset running time.
In a preferred embodiment of the control method, the step of determining the target opening degree of the electronic expansion valve includes: acquiring a target air-discharge temperature of a compressor of an air conditioner; and determining the target opening according to the target air spitting temperature.
In a preferred embodiment of the control method, the step of "bringing the opening degree of the electronic expansion valve to the target opening degree in stages" includes: determining an initial opening degree; and enabling the opening degree of the electronic expansion valve to reach the target opening degree in a stepped rising manner from the initial opening degree.
In a preferred embodiment of the control method, the step of "causing the opening degree of the electronic expansion valve to increase stepwise from the initial opening degree to the target opening degree" includes: detecting the gas discharge temperature of the compressor; and enabling the opening degree of the electronic expansion valve to reach the target opening degree in a stepped-up mode from the initial opening degree according to the spitting temperature.
In a preferred embodiment of the control method, the step of "increasing the opening degree of the electronic expansion valve from the initial opening degree to the target opening degree in a stepwise manner in accordance with the discharge air temperature" includes: enabling the electronic expansion valve to operate for a first set time according to the initial opening degree; comparing the spitting temperature with a first preset spitting temperature; and judging whether to increase the initial opening degree according to the comparison result.
In a preferred embodiment of the control method, the step of "determining whether or not to increase the initial opening degree based on the comparison result" includes: and increasing the initial opening degree to the target opening degree when the gas spitting temperature is greater than the first preset gas spitting temperature.
In a preferred embodiment of the control method, the step of "increasing the initial opening degree to the target opening degree when the temperature of the discharged air is higher than the first preset temperature of the discharged air" includes: increasing the initial opening degree to a transitional opening degree and enabling the electronic expansion valve to operate for a second set time according to the transitional opening degree; comparing the spitting temperature with a second preset spitting temperature; judging whether the transitional opening degree is increased to the target opening degree or not according to the comparison result; wherein the second preset spitting temperature is greater than the first preset spitting temperature.
In a preferred embodiment of the control method, the step of "determining whether to increase the transitional opening degree to the target opening degree based on the comparison result" further includes the steps of: and under the condition that the gas spitting temperature is greater than the second preset gas spitting temperature, increasing the transitional opening degree to the target opening degree.
In a preferred embodiment of the control method, the step of increasing the transient opening degree to the target opening degree when the temperature of the discharged air is higher than the second preset temperature of the discharged air is specifically: directly increasing the transitional opening degree to the target opening degree; or the transitional opening degree is gradually increased to the target opening degree in a stepwise-increasing manner.
In another aspect, the present invention further provides an air conditioner, which includes a controller, and the controller is configured to execute the method for controlling the opening degree of the electronic expansion valve of the air conditioner according to the above preferred embodiment.
As can be understood by those skilled in the art, in the technical solution of the present invention, the method for controlling the opening of the electronic expansion valve of the air conditioner includes the following steps: determining a target opening degree of the electronic expansion valve; the opening degree of the electronic expansion valve is made to reach the target opening degree in a staged manner; the target opening degree is the opening degree of the electronic expansion valve after the air conditioner is started for a preset running time. The opening degree of the electronic expansion valve reaches the target opening degree in a staged mode, so that the heating/cooling speed of the air conditioner at the initial stage of starting operation is improved, the performance of the whole air conditioner at the initial stage of starting operation is improved, the opening degree of the electronic expansion valve is accurately controlled by a staged control method, the air-discharging temperature of the compressor can be guaranteed to stably reach the target air-discharging temperature, and the use experience of the air conditioner is improved. It should be noted that the preset operation time may be determined, for example, by: the inventor determines the method through experimental data, product analysis, experience and the like. After the preset operation time is started, it is considered that the air conditioner has entered a stable operation stage, and thus the opening degree of the expansion valve can be determined as data received by the sensor mentioned in the background art. That is, the present invention focuses on improving the performance of the air conditioner during a period before the air conditioner reaches a stable operation state after being turned on.
Drawings
Preferred embodiments of the present invention are described below with reference to the accompanying drawings, in which:
fig. 1 is a logic diagram of controlling an opening degree of an electronic expansion valve of an air conditioner according to an embodiment of the present invention.
Detailed Description
It should be understood by those skilled in the art that the embodiments of the present invention are only for explaining the technical principle of the present invention, and are not intended to limit the scope of the present invention. For example, although the components in the drawings are illustrated in a certain proportional relationship, the proportional relationship is not constant, and those skilled in the art can make modifications as required to adapt to specific applications, and the modified embodiments will still fall within the scope of the present invention.
It should be noted that in the description of the present invention, the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicating the directions or positional relationships are based on the directions or positional relationships shown in the drawings, which are only for convenience of description, and do not indicate or imply that the device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
A control method for the opening of an electronic expansion valve of an air conditioner mainly comprises the following steps: s100, determining a target opening degree of the electronic expansion valve; s200, enabling the opening degree of the electronic expansion valve to reach a target opening degree in a staged mode; the target opening degree is the opening degree of the electronic expansion valve after the air conditioner is started for a preset running time. Such as may be: the method comprises the steps that a strong wind mode in a refrigeration mode of the air conditioner is selected by a user, the air conditioner runs according to parameters corresponding to the strong wind mode after starting preset running time, and the opening degree of an electronic expansion valve is the target opening degree corresponding to the strong wind mode.
The target opening degree is achieved by stages, the air-out temperature of the compressor can be guaranteed to rapidly reach the target air-out temperature, the heating/refrigerating speed of the air conditioner is improved, the phenomenon that the heating/refrigerating initial effect of the air conditioner is poor or the air-out protection occurs due to the fact that the opening degree of the electronic expansion valve is too large or too small is avoided, and the overall performance of the air conditioner is improved. It is understood that the staged operation may be one or more stages, and the specific form of each stage may be the same or different, such as, for example, the opening degree of the electronic expansion valve is increased to the target opening degree in three stages, wherein the first and last stages are continuously increased, and the second stage is a jump-type increase, and the opening degree at the start of the first stage may be zero, and may be a certain set opening degree.
In one possible implementation, step S100 further includes: s110, acquiring a target air-discharge temperature of a compressor of the air conditioner; and S120, determining the target opening according to the target air spitting temperature.
Such as after the user selects a particular mode of the air conditioner, the target discharge air temperature of the corresponding compressor is also determined accordingly. Since the target opening degree corresponding to the target discharge air temperature is set in advance, the target opening degree of the electronic expansion valve corresponding to the target discharge air temperature can be determined.
In a possible implementation, step S200 further includes: s210, acquiring an initial opening degree; and S220, making the opening degree of the electronic expansion valve reach a target opening degree in a step-up mode from the initial opening degree.
The initial opening degree may be set in advance through a large number of experiments or empirically. As an example: the initial opening is 100P, which is the unit of opening "steps". By setting the initial opening degree, the electronic expansion valve runs by taking the reasonable initial opening degree as a starting point, so that the problem of poor performance of the whole air conditioner caused by overlarge or undersize opening degree when the electronic expansion valve is started is solved.
In a possible implementation, step S220 further includes: s2201, detecting the gas spitting temperature of the compressor; s2202, the opening degree of the electronic expansion valve is increased stepwise from the initial opening degree to the target opening degree in accordance with the discharge temperature.
The actual spitting temperature of the compressor is detected, the opening degree of the electronic expansion valve is controlled according to the actual spitting temperature to reach the target opening degree in a step-rising mode, the opening degree of the electronic expansion valve rises more smoothly, and therefore the air conditioner can run more stably within the preset running time. It will be appreciated that the step-up may comprise one or more discontinuous step nodes, and that the difference between the nodes may be uniform or non-uniform. The inventor can flexibly choose according to the actual situation.
In one possible implementation, step S2202 further includes: s22021, enabling the electronic expansion valve to operate for a first set time according to the initial opening degree; s22022, comparing the spitting temperature with a first preset spitting temperature; s22023, judging whether the initial opening degree is increased or not according to the comparison result. Such as: and increasing the initial opening degree to a target opening degree when the gas spitting temperature is higher than a first preset gas spitting temperature. And when the gas spitting temperature is lower than the first preset gas spitting temperature, continuously enabling the electronic expansion valve to continue to operate for a first set time according to the initial opening degree and then comparing the first set time with the first preset gas spitting temperature until the gas spitting temperature is higher than the first preset gas spitting temperature and then enabling the initial opening degree to be increased to the target opening degree. The opening degree of the electronic expansion valve gradually reaches the target opening degree by comparing the air-out temperature with the first preset air-out temperature, so that the air-out temperature of the compressor stably reaches the target air-out temperature, and the initial operation process of the air conditioner in the refrigeration/heating process is more stable.
In one possible embodiment, the step of increasing the initial opening degree to the target opening degree in a case where the temperature of the discharged air is greater than the first preset temperature of the discharged air further includes: increasing the initial opening degree to a transitional opening degree and enabling the electronic expansion valve to operate for a second set time according to the transitional opening degree; comparing the spitting temperature with a second preset spitting temperature; judging whether the transitional opening degree is increased to the target opening degree or not according to the comparison result; wherein the second preset spitting temperature is greater than the first preset spitting temperature. Such as: and increasing the transitional opening degree to the target opening degree when the gas spitting temperature is higher than the second preset gas spitting temperature. And under the condition that the gas spitting temperature is lower than the second preset gas spitting temperature, continuously enabling the electronic expansion valve to operate for a second set time according to the transitional opening degree and then comparing the temperature with the second preset gas spitting temperature until the gas spitting temperature is higher than the second preset gas spitting temperature, and then enabling the transitional opening degree to be increased to the target opening degree.
The first preset temperature and the second preset temperature are set in advance according to the target temperature, and both are smaller than the target temperature, for example, if the target temperature is 65 ℃, the first preset temperature may be 45 ℃ and the second preset temperature may be 55 ℃. The first set time and the second set time are set in advance empirically or experimentally, and are illustratively equal to each other, such as 1 minute. The difference between the transitional opening degree and the initial opening degree is set according to experience and a target opening degree, and preferably, the difference between the transitional opening degree and the initial opening degree is 50P.
Through the setting of the transition opening degree, the process that the opening degree of the electronic expansion valve reaches the target opening degree is divided into more gradients, so that the control of the opening degree of the electronic expansion valve is more accurate, and the running process of the compressor is more stable. It should be noted that one or more transitional opening degrees may be provided. If the transitional opening degree is only one, namely, the transitional opening degree is directly increased to the target opening degree; when the transition opening degree is plural, the electronic expansion valve is sequentially raised from the initial opening degree to the target opening degree through the plural transition opening degrees.
It is understood that each of the transition openings corresponds to a corresponding set time and preset spitting temperature. If two transition opening degrees are set between the initial opening degree and the target opening degree in an increasing way, the electronic expansion valve is firstly increased from the initial opening degree to the first transition opening degree, then is increased from the first transition opening degree to the second transition opening degree, and finally is increased from the second transition opening degree to the target opening degree. The method for determining whether to ascend is the same as before, and is not described herein again.
Through the setting of the preset temperature, the set time and the transition opening, the process that the opening of the electronic expansion valve reaches the target opening can be subdivided into more opening gradients, the more accurate control on the opening of the electronic expansion valve is realized, the process that the gas-emitting temperature of the compressor reaches the target gas-emitting temperature is stable, and the refrigerating/heating efficiency of the air conditioner at the initial stage of starting operation is improved.
As shown in fig. 1, fig. 1 is a logic diagram of controlling an opening degree of an electronic expansion valve of an air conditioner according to an embodiment of the present invention. In one possible embodiment, a set of preset expiratory temperatures, which illustratively includes a first preset expiratory temperature T that increases in sequence, a set time, and an opening degree of the electronic expansion valve may be set in advance1A second preset spitting temperature T2And a third preset temperature T for discharged air3And the target air-out temperature is more than the third preset air-out temperature T3The set of setting times includes a first setting timet1A second set time t2And a third set time t3And the three are equal, one group of opening degrees comprises an initial opening degree and two transitional opening degrees, and the three opening degrees are distributed in an arithmetic progression. As can be appreciated, (T)1、T2、T3) Increasing manner of (a), (t)1、t2、t3) Whether the opening degrees are equal and the distribution modes of the three opening degrees can be reasonably set according to actual conditions.
Referring to fig. 1, a method for controlling an opening of an electronic expansion valve of an air conditioner includes the steps of: s1, starting the air conditioner to run; s2, controlling the electronic expansion valve to be in accordance with the initial opening degree P0Operating for a first set time t1(ii) a S3, detecting the gas spitting temperature of the compressor; s4, comparing the spitting temperature with the first preset spitting temperature T1When the temperature of the discharged air is higher than the first preset temperature T1In the case of (3) controlling the initial opening degree P of the electronic expansion valve0Increasing the number of steps PnTo a first transition opening degree, and when the gas spitting temperature is less than a first preset gas spitting temperature T1In case of (3), return to S2; s5, controlling the electronic expansion valve to operate for a second set time t according to the first transitional opening degree2(ii) a S6, comparing the spitting air temperature with a second preset spitting air temperature T2When the air-out temperature is higher than the second preset air-out temperature T2Under the condition of controlling the first transitional opening degree of the electronic expansion valve to increase the step number PnI.e. from a first transitional opening to a second transitional opening, at a discharge temperature less than a second preset discharge temperature T2In case of (3), return to S5; s7, controlling the electronic expansion valve to operate for a third set time t according to the second transitional opening degree3(ii) a S8, comparing the spitting air temperature with a third preset spitting air temperature T3When the temperature of the discharged air is higher than the third preset temperature T3The second transitional opening degree of the electronic expansion valve is controlled to increase to a target opening degree corresponding to the target gas-discharge temperature, and the gas-discharge temperature is lower than a third preset gas-discharge temperature T3In this case, return is made to S7.
When the target discharge temperature is higher than the first preset discharge temperature and lower than the second preset discharge temperature, it is detected that the discharge temperature of the compressor is highAt a first preset spitting temperature T1Time control of initial opening degree P of electronic expansion valve0Directly increasing the temperature to a target opening degree corresponding to the target spitting air temperature. When the set target gas-discharge temperature is higher than the first preset gas-discharge temperature and lower than the third preset gas-discharge temperature, the gas-discharge temperature of the compressor is detected to be higher than the second preset gas-discharge temperature T2The transitional opening degree of the electronic expansion valve is controlled to be directly increased to a target opening degree corresponding to the target spitting air temperature.
It should be noted that, in the above embodiment, the control logic of the opening degree of the electronic expansion valve of the air conditioner is performed on the basis of setting a set of temperature groups including a plurality of preset spitting temperatures in advance, and the different target spitting temperatures correspond to different preset spitting temperature sections in the temperature groups. Namely: the air conditioner is preset with the same set of preset air-discharge temperatures, and the specific step-rising mode is determined by comparing the target air-discharge temperature with the preset air-discharge temperatures. It is to be understood that a corresponding temperature group including at least one preset expiratory temperature may be set for each target expiratory temperature in accordance with different target expiratory temperatures. The person skilled in the art can set the preset spitting temperature reasonably according to actual conditions and needs.
As apparent from the above description, the method for controlling the opening of the electronic expansion valve of the air conditioner of the present invention includes the steps of: determining a target opening degree of the electronic expansion valve; the opening degree of the electronic expansion valve is made to reach the target opening degree in a staged manner; the target opening degree is the opening degree of the electronic expansion valve after the air conditioner is started for a preset running time. The opening degree of the electronic expansion valve reaches the target opening degree in a staged mode, so that the heating/cooling speed of the air conditioner at the initial stage of starting operation is increased, and the performance of the air conditioner at the initial stage of starting operation is improved. Preferably, the control method further includes: determining an initial opening degree; the opening degree of the electronic expansion valve is increased from the initial opening degree to the target opening degree in a step-up manner. Through the arrangement, the problem of poor experience of the air conditioner due to overlarge or undersize opening degree when the electronic expansion valve is started is avoided, and the opening degree of the electronic expansion valve is more gradually increased in a step-increasing mode, so that the air conditioner is more stable in operation in the preset operation time.
So far, the technical solutions of the present invention have been described in connection with the preferred embodiments shown in the drawings, but it is easily understood by those skilled in the art that the scope of the present invention is obviously not limited to these specific embodiments. Equivalent changes or substitutions of related technical features can be made by those skilled in the art without departing from the principle of the invention, and the technical scheme after the changes or substitutions can fall into the protection scope of the invention.
Claims (8)
1. A control method for the opening degree of an electronic expansion valve of an air conditioner is characterized by comprising the following steps:
determining a target opening degree of the electronic expansion valve;
the opening degree of the electronic expansion valve is made to reach the target opening degree in a staged manner; the method specifically comprises the following steps: determining an initial opening degree, detecting the gas discharge temperature of a compressor, and enabling the opening degree of the electronic expansion valve to reach the target opening degree in a stepped rising mode from the initial opening degree according to the gas discharge temperature;
and the target opening degree is the opening degree of the electronic expansion valve after the air conditioner starts the preset running time.
2. The control method according to claim 1, wherein the step of determining the target opening degree of the electronic expansion valve comprises:
acquiring a target air-discharge temperature of a compressor of an air conditioner;
and determining the target opening according to the target air spitting temperature.
3. The control method according to claim 1, wherein the step of "causing the opening degree of the electronic expansion valve to increase stepwise from the initial opening degree to the target opening degree in accordance with the spitting temperature" includes:
enabling the electronic expansion valve to operate for a first set time according to the initial opening degree;
comparing the spitting temperature with a first preset spitting temperature;
and judging whether to increase the initial opening degree according to the comparison result.
4. The control method according to claim 3, wherein the step of determining whether to increase the initial opening degree according to the comparison result includes:
and increasing the initial opening degree to the target opening degree when the gas spitting temperature is greater than the first preset gas spitting temperature.
5. The control method according to claim 4, wherein the step of increasing the initial opening degree to the target opening degree in a case where the spitting temperature is greater than the first preset spitting temperature includes:
increasing the initial opening degree to a transitional opening degree and enabling the electronic expansion valve to operate for a second set time according to the transitional opening degree;
comparing the spitting temperature with a second preset spitting temperature;
judging whether the transitional opening degree is increased to the target opening degree or not according to the comparison result;
wherein the second preset spitting temperature is greater than the first preset spitting temperature.
6. The control method according to claim 5, wherein the step of determining whether to increase the transitional opening degree to the target opening degree according to the comparison result further comprises the steps of:
and under the condition that the gas spitting temperature is greater than the second preset gas spitting temperature, increasing the transitional opening degree to the target opening degree.
7. The control method according to claim 6, wherein the step of increasing the transition opening degree to the target opening degree in the case where the temperature of the discharged air is greater than the second preset temperature of the discharged air is specifically:
directly increasing the transitional opening degree to the target opening degree; or
And gradually increasing the transitional opening degree to the target opening degree in a stepwise-increasing manner.
8. An air conditioner characterized by comprising a controller for executing the method of controlling the opening degree of an electronic expansion valve of the air conditioner according to any one of claims 1 to 7.
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| CN110986253B (en) * | 2019-11-15 | 2022-04-29 | 珠海格力电器股份有限公司 | Electronic expansion valve control method, compressor control system and air conditioner |
| CN111854031B (en) * | 2020-07-13 | 2021-08-31 | 珠海格力电器股份有限公司 | Control method of electronic expansion valve, control method of air conditioner and air conditioner |
| CN113074452A (en) * | 2021-03-19 | 2021-07-06 | 海信（山东）空调有限公司 | Defrosting control method of air conditioner, air conditioner and storage medium |
| CN113175731B (en) * | 2021-04-20 | 2022-12-13 | 海信空调有限公司 | Defrosting control method of air conditioner and air conditioner |
| CN114442696B (en) * | 2022-01-24 | 2023-05-05 | 成都市绿色快线环保科技有限公司 | Temperature control system and method |
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| CN104930773B (en) * | 2015-07-06 | 2017-06-06 | 珠海格力电器股份有限公司 | Control method and device of electronic expansion valve and air conditioner |
| US10845095B2 (en) * | 2015-10-21 | 2020-11-24 | Mitsubishi Electric Corporation | Air-conditioning apparatus |
| CN106091271B (en) * | 2016-06-17 | 2019-07-19 | 广东美的制冷设备有限公司 | Air conditioner abnormal sound removing method and device |
| CN106152399B (en) * | 2016-07-04 | 2019-05-31 | 青岛海尔空调器有限总公司 | The method for controlling air conditioner electric expansion valve |
| CN106594978B (en) * | 2016-11-22 | 2019-12-06 | 珠海格力电器股份有限公司 | Control method and device for air conditioner |
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