CN108709294B - Power supply circuit, controller of electric appliance, control method of controller and air conditioner - Google Patents
Power supply circuit, controller of electric appliance, control method of controller and air conditioner Download PDFInfo
- Publication number
- CN108709294B CN108709294B CN201810790942.2A CN201810790942A CN108709294B CN 108709294 B CN108709294 B CN 108709294B CN 201810790942 A CN201810790942 A CN 201810790942A CN 108709294 B CN108709294 B CN 108709294B
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- power supply
- power
- controller
- supply circuit
- branch
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- 238000000034 method Methods 0.000 title claims abstract description 14
- 238000006243 chemical reaction Methods 0.000 claims abstract description 31
- 238000010438 heat treatment Methods 0.000 claims description 12
- 239000003507 refrigerant Substances 0.000 claims description 12
- 238000005057 refrigeration Methods 0.000 claims description 10
- 230000007613 environmental effect Effects 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims 1
- 238000004378 air conditioning Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- F24F11/88—Electrical aspects, e.g. circuits
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention discloses a power supply circuit, a controller of an electric appliance, a control method of the controller and an air conditioner. The power supply circuit comprises at least two different power supply branches, different power supply conversion modules are arranged on the different power supply branches, the power supply branches are connected with the load, each power supply branch is provided with a switching device, and the power supply circuit further comprises a control module connected with the switching devices and used for controlling the switching devices on each power supply branch to be opened and closed so as to select one of the at least two different power supply branches to supply power for the load. The power supply circuit provided by the invention can provide various power supply schemes for loads, and the power supply schemes can be selected through the control of the control module according to specific requirements, so that the applicability of the power supply circuit is greatly improved.
Description
Technical Field
The invention relates to the technical field of electric appliances, in particular to a power supply circuit, a controller of an electric appliance, a control method of the controller and an air conditioner.
Background
With the expansion of the application field of air conditioners, the performance requirements of users on the air conditioner are higher and higher, for example, the integral type air conditioner for an external shelter used in a field severe climate environment mainly has the effect of adjusting the temperature and the humidity of a cabin, so that the air conditioner can be required to operate at a wider environment temperature. The control panel in the conventional air conditioning equipment is single in power supply and difficult to adapt to the application scene with such large temperature span change, so that the use reliability of the air conditioning equipment is affected.
Disclosure of Invention
Therefore, one of the objectives of the present invention is to provide a power supply circuit, a controller of an electric appliance, a control method thereof, and an air conditioner, so as to solve the problem of single power supply in the prior art.
In order to achieve the above object, according to a first aspect of the present invention, the following technical solutions are adopted:
The utility model provides a power supply circuit for the load power supply, power supply circuit includes two at least different power supply branch ways, is provided with different power conversion modules on the different power supply branch ways, the power supply branch way with the load links to each other, every all be provided with switching device on the power supply branch way, power supply circuit still includes with the control module that switching device links to each other for control on each power supply branch way switching device's switching is in order to select one of two at least different power supply branch ways to be the load power supply.
Preferably, the different power conversion modules are adapted to operate in different temperature environments.
Preferably, the at least two different power supply branches include a first power supply branch and a second power supply branch, the power conversion module disposed on the first power supply branch includes a linear regulated power supply, and the power conversion module disposed on the second power supply branch includes a DC-DC power supply.
Preferably, the control module comprises a driving circuit respectively connected with the switching devices on different power supply branches, and the driving circuit can output voltage signals to drive the switching devices to be opened and closed.
Preferably, the at least two different power supply branches are each connected to a switching power supply circuit.
Preferably, the switching means comprises a relay.
In a second aspect, the present invention adopts the following technical scheme:
a controller of an electric appliance, the controller comprising an electric component and further comprising a power supply circuit as described above, the power supply circuit being used for supplying power to the electric component.
In a third aspect, the present invention adopts the following technical scheme:
The control method of the controller of the electric appliance comprises the step of selecting different power supply branches in the power supply circuit to supply power for the electric components according to the environmental temperature of the environment where the controller is located and/or the working state of the electric appliance.
Preferably, the electrical apparatus includes a refrigerant circulation system, the refrigerant circulation system has a refrigeration mode and a heating mode, the power supply circuit is the power supply circuit, and the control method includes:
When the refrigerant circulation system operates in a refrigeration mode, the second power supply branch is selected to supply power for the electric component; and/or the number of the groups of groups,
And when the refrigerant circulation system operates in a heating mode, the first power supply branch is selected to supply power for the electric component.
In a fourth aspect, the present invention adopts the following technical scheme:
an air conditioner comprising a controller as described above.
The power supply circuit provided by the invention comprises at least two different power supply branches, different power supply conversion modules are arranged on the different power supply branches, and the control module can control the switching of the switching devices on each power supply branch so as to select one power supply branch to supply power to a load, so that various power supply schemes can be provided for the load, the selection of the power supply schemes can be performed through the control of the control module according to specific requirements, and the applicability of the power supply circuit is greatly improved.
Drawings
The above and other objects, features and advantages of the present invention will become more apparent from the following description of embodiments of the present invention with reference to the accompanying drawings, in which:
Fig. 1 shows a circuit diagram of a power supply circuit according to an embodiment of the present invention.
In the figure, 1, a first power supply branch circuit; 2. a second power supply branch; 3. a first switching device; 4. a second switching device; 5. a first power conversion module; 6. the second power conversion module; 7. a switching power supply circuit; 8. a load; 91. a first driving circuit; 92. and a second driving circuit.
Detailed Description
The present invention is described below based on examples, but the present invention is not limited to only these examples. Well-known methods, procedures, flows, and components have not been described in detail so as not to obscure the nature of the invention.
Moreover, those of ordinary skill in the art will appreciate that the drawings are provided herein for illustrative purposes and that the drawings are not necessarily drawn to scale.
Unless the context clearly requires otherwise, throughout the description and the claims, the words "comprise", "comprising", and the like are to be construed in an inclusive sense as opposed to an exclusive or exhaustive sense; that is, it is the meaning of "including but not limited to".
In the description of the present invention, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Furthermore, in the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
The present application provides a power supply circuit for supplying power to a load 8, as shown in fig. 1, for example, the power supply circuit being a power supply circuit provided on a controller of an electric appliance for supplying power to electric components of the controller.
The power supply circuit comprises at least two different power supply branches, for example, a first power supply branch 1 and a second power supply branch 2, wherein the power supply branches are connected with a load 8 to supply power to the load 8, different power supply conversion modules are arranged on the different power supply branches and are used for carrying out power supply conversion, for example, voltage stabilization treatment on the voltage of an input load.
Further, each power supply branch is connected to the switching power supply circuit 7, as shown in fig. 1, the alternating current is rectified to the switching power supply circuit 7 through filtering to output a weak current signal, and the weak current signal can supply power to the load 8 through different power supply branches.
Each power supply branch is provided with a switching device, the power supply circuit further comprises a control module connected with the switching devices and used for controlling the switching of the switching devices on each power supply branch so as to select one of the power supply branches to supply power for the load 8, so that various power supply schemes can be provided for the load 8, the power supply schemes can be selected through the control of the control module according to specific requirements, and the applicability of the power supply circuit is greatly improved.
Further, different power conversion modules are suitable for working under different temperature environments, so when the environment temperature changes, the power supply branch where the power conversion module suitable for the current temperature environment is located is selected by the control module to supply power to the load 8, the power supply circuit can work normally under different temperature environments, the working reliability of the power supply circuit is improved, and the application range is wider.
In a specific embodiment, as shown in fig. 1, at least two different power supply circuits include a first power supply branch 1 and a second power supply branch 2, where a first switching device 3 and a first power conversion module 5 are disposed on the first power supply branch 1, and a second switching device 4 and a second power conversion module 6 are disposed on the second power supply branch 2, where the first power conversion module 5 is a power conversion module suitable for operating in a lower temperature environment, for example, may be a linear stabilized power supply as shown in fig. 1, and the power conversion circuit in the linear stabilized power supply can properly raise the device temperature to resist the extremely cold ambient temperature, and the second power conversion module 6 is a power conversion module suitable for operating in a higher temperature environment, for example, may be a DC-DC power supply as shown in fig. 1, especially a low-power DC-DC power supply, which does not cause an additional heating problem, so that good performance can be maintained in a higher temperature environment.
Alternatively, the switching means are relays, for example, in the embodiment shown in fig. 1, the first switching means 3 is a first relay K1 and the second switching means 4 is a second relay K2.
Optionally, the control module includes driving circuits respectively connected to the switching devices on the different power supply circuits, for example, in the embodiment shown in fig. 1, the control module includes a first driving circuit 91 connected to the first switching device 3 and a second driving circuit 92 connected to the second switching device 4, when the first power supply branch 1 is required to supply power to the load 8, the first driving circuit 91 outputs a low level, so that the coil of the first relay K1 is powered, and thus the switch of the first relay K1 is closed, and at the same time, the second driving circuit 92 makes the coil of the second relay K2 not powered, and the switch of the second relay is opened, so that the load 8 is powered, that is, the linear regulated power supply. When the second power supply branch 2 is required to supply power to the load 8, the second driving circuit 92 outputs a low level, so that the coil of the second relay K2 is powered on, and the switch of the second relay K2 is closed, and at the same time, the first driving circuit 91 makes the coil of the first relay K1 not powered on, and the switch of the first relay K1 is opened, so that the load 8 is powered on, namely, the DC-DC power supply. Wherein the outputs of the first driving circuit 91 and the second driving circuit 92 can be controlled by the chip I01 and the chip I02, respectively.
Further, the application also provides a controller of the electric appliance, the controller comprises the electric component and the power supply circuit, and the power supply circuit is used for supplying power to the electric component, so that the diversity of power supply schemes of the electric component is improved.
Further, the application also provides a control method of the controller of the electric appliance, different power supply branches in the power supply circuit are selected to supply power to the electric components according to the environmental temperature of the environment where the controller is located and/or the working state of the electric appliance, for example, when the environment temperature is detected to be higher, the power supply branch where the power supply conversion module working in the high-temperature environment is located can be selected to supply power, and when the environment temperature is detected to be lower, the power supply branch where the power supply conversion module working in the low-temperature environment is selected to supply power. Of course, the current ambient temperature can also be judged according to the working state of the electric appliance, for example, when the electric appliance comprises a refrigerant circulation system, for example, when the electric appliance is an air conditioner, the refrigerant circulation system is provided with a refrigeration mode and a heating module, when the refrigerant circulation system runs in the refrigeration mode, the ambient temperature is higher, a power supply branch circuit where a power supply conversion module suitable for working in a high-temperature environment is selected for supplying power, and when the refrigerant circulation system runs in the heating mode, the ambient temperature is lower, and when the refrigerant circulation system runs in the heating mode, the power supply branch circuit where the power supply conversion module suitable for working in a low-temperature environment is selected for supplying power.
The following specifically describes a control method of the main control board with the circuit shown in fig. 1 applied to an air conditioner as an example:
When the user selects the refrigeration mode, the external machine of the air conditioner outputs hot air under the refrigeration mode due to the working condition of the external machine (the working condition is hot), the internal ring temperature of the equipment is relatively high, the temperature of the main board device of the air conditioner is high, so that the second power supply branch circuit 2 with low power consumption is required to be selected, when the main chip detects that the main chip is in the refrigeration mode, the chip IO2 controls the second driving circuit 92 to pull the low level so as to enable the coil of the second relay K2 to be electrified, so that the switch of the second relay K2 is closed, meanwhile, the chip IO1 controls the first driving circuit 91 so that the coil of the first relay K1 is not electrified, and the switch of the first relay K1 is disconnected, so that the load is powered by the low-power DC-DC power supply. Under the working condition, the main board adopts a low-power-consumption DC-DC power supply, so that the heating problem is not additionally brought, and compared with a voltage-stabilized power supply scheme, the heat is reduced, and the high-temperature refrigeration performance is improved to a certain extent.
When a user selects a heating mode, the external machine of the air conditioner outputs cold air under the heating mode due to the working condition of the external machine (the working condition is cold), the internal ring temperature of the equipment is relatively low, the temperature of a main board device of the air conditioner is also low, so that the first power supply branch 1 where a linear voltage stabilizer is arranged is needed to be adopted, the temperature rise of the device is properly raised to resist the extremely cold ring temperature, when the main chip detects that the main chip is in the heating mode, the chip IO1 controls the first driving circuit 91 to pull down the level so as to enable the coil of the first relay K1 to be electrified, so that the switch of the first relay K1 is closed, meanwhile, the chip IO2 controls the second driving circuit 92 so that the coil of the second relay K2 is not electrified, the switch of the second relay K2 is disconnected, the load is powered by the linear voltage stabilizing power supply, and the radiating block on the voltage stabilizer can heat to be used for properly resisting the cold environment temperature. Under the working condition, compared with a DC-DC power supply with lower power consumption, the linear stabilized power supply self radiating block is adopted by the main board, the heat can be released, and the low-temperature refrigeration performance is improved to a certain extent.
The application also provides an air conditioner with the controller, so that the capacity of the air conditioner for adapting to various temperature environments is improved.
It is easy to understand by those skilled in the art that the above preferred embodiments can be freely combined and overlapped without conflict.
It will be understood that the above-described embodiments are merely illustrative and not restrictive, and that all obvious or equivalent modifications and substitutions to the details given above may be made by those skilled in the art without departing from the underlying principles of the invention, are intended to be included within the scope of the appended claims.
Claims (8)
1. A power supply circuit for supplying power to a load, wherein the power supply circuit comprises at least two different power supply branches, different power supply conversion modules are arranged on the different power supply branches, the power supply branches are connected with the load, each power supply branch is provided with a switching device, and the power supply circuit further comprises a control module connected with the switching devices and used for controlling the switching of the switching devices on each power supply branch so as to select one of the at least two different power supply branches to supply power to the load;
Different power conversion modules are suitable for working in different temperature environments;
the at least two different power supply branches comprise a first power supply branch and a second power supply branch, a power conversion module arranged on the first power supply branch comprises a linear stabilized voltage power supply, and a power conversion module arranged on the second power supply branch comprises a DC-DC power supply;
the linear stabilized power supply is a power supply conversion module suitable for working in a low-temperature environment, and the DC-DC power supply is a power supply conversion module suitable for working in a high-temperature environment;
The control module connected with the switching device is specifically used for: when the environment temperature is detected to be higher, a power supply branch circuit where the power supply conversion module which is suitable for working in a high-temperature environment is located can be selected for power supply, and when the environment temperature is detected to be lower, the power supply branch circuit where the power supply conversion module which is suitable for working in a low-temperature environment is located can be selected for power supply.
2. A power supply circuit according to claim 1, wherein the control module comprises drive circuits each connected to a switching device on a different power supply branch, the drive circuits being capable of outputting a voltage signal to drive the switching device on and off.
3. The power supply circuit of claim 1, wherein the at least two different power supply branches are each connected to a switching power supply circuit.
4. The power supply circuit of claim 1, wherein the switching device comprises a relay.
5. A controller of an electrical appliance, characterized in that the controller comprises an electrical component and further comprises a power supply circuit according to one of claims 1 to 4 for supplying the electrical component with power.
6. The control method of the controller of the electric appliance according to claim 5, wherein different power supply branches in the power supply circuit are selected to supply power to the electric component according to the environmental temperature of the environment in which the controller is located and/or the working state of the electric appliance.
7. The control method according to claim 6, wherein the electric appliance includes a refrigerant circulation system having a cooling mode and a heating mode, the power supply circuit is the power supply circuit according to claim 1, the control method includes:
When the refrigerant circulation system operates in a refrigeration mode, the second power supply branch is selected to supply power for the electric component; and/or the number of the groups of groups,
And when the refrigerant circulation system operates in a heating mode, the first power supply branch is selected to supply power for the electric component.
8. An air conditioner comprising the controller of claim 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810790942.2A CN108709294B (en) | 2018-07-18 | 2018-07-18 | Power supply circuit, controller of electric appliance, control method of controller and air conditioner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810790942.2A CN108709294B (en) | 2018-07-18 | 2018-07-18 | Power supply circuit, controller of electric appliance, control method of controller and air conditioner |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108709294A CN108709294A (en) | 2018-10-26 |
| CN108709294B true CN108709294B (en) | 2024-05-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810790942.2A Active CN108709294B (en) | 2018-07-18 | 2018-07-18 | Power supply circuit, controller of electric appliance, control method of controller and air conditioner |
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| Country | Link |
|---|---|
| CN (1) | CN108709294B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6181583B1 (en) * | 1999-01-19 | 2001-01-30 | Matsushita Electric Industrial Co., Ltd. | Power supply device and air conditioner using the same |
| CN103023129A (en) * | 2011-09-22 | 2013-04-03 | 珠海格力电器股份有限公司 | Electric appliance and control circuit and method thereof |
| CN203704249U (en) * | 2014-01-02 | 2014-07-09 | 海尔集团公司 | Air conditioner and control system with lower power consumption thereof |
| CN208750951U (en) * | 2018-07-18 | 2019-04-16 | 珠海格力电器股份有限公司 | Power supply circuit, controller of electric appliance and air conditioner |
-
2018
- 2018-07-18 CN CN201810790942.2A patent/CN108709294B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6181583B1 (en) * | 1999-01-19 | 2001-01-30 | Matsushita Electric Industrial Co., Ltd. | Power supply device and air conditioner using the same |
| CN103023129A (en) * | 2011-09-22 | 2013-04-03 | 珠海格力电器股份有限公司 | Electric appliance and control circuit and method thereof |
| CN203704249U (en) * | 2014-01-02 | 2014-07-09 | 海尔集团公司 | Air conditioner and control system with lower power consumption thereof |
| CN208750951U (en) * | 2018-07-18 | 2019-04-16 | 珠海格力电器股份有限公司 | Power supply circuit, controller of electric appliance and air conditioner |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108709294A (en) | 2018-10-26 |
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