Air conditioner and control method

Abstract

This application provides an air conditioner and a control method, applied in the field of air conditioner control. The method includes: acquiring the operating mode of the air conditioner and the current temperature of the photovoltaic hot plate; when the air conditioner is in heating mode, using a first refrigerant pipeline to dissipate heat from the photovoltaic hot plate, and adjusting the opening of a throttle valve on the first refrigerant pipeline based on the current temperature of the photovoltaic hot plate. The air conditioner and control method provided in this application utilize the refrigerant of the air conditioner to cool the photovoltaic hot plate, improving the photoelectric conversion efficiency of the photovoltaic hot plate, and also improving the heat exchange efficiency of the outdoor heat exchanger.

Description

Technical Field

[0001] This application relates to the field of air conditioner control, and more particularly to an air conditioner and a control method thereof. Background Technology

[0002] As people's living standards continue to improve and the level of intelligence in home appliances continues to rise, smart home appliances are becoming increasingly popular. Users can use air conditioners to heat in winter to raise the indoor temperature, and they can also use air conditioners to cool in summer to lower the indoor temperature.

[0003] Photovoltaic thermal panels (PVTs) can convert solar energy into both electricity and heat. In related technologies, the electricity generated by PVTs can power air conditioners, reducing their operating costs. However, the photoelectric conversion efficiency of PVTs is negatively correlated with temperature; the higher the temperature, the lower the conversion efficiency.

[0004] Therefore, there is an urgent need for a device that can control the temperature of a photovoltaic hot plate during operation in order to improve the photoelectric conversion efficiency of the photovoltaic hot plate. Summary of the Invention

[0005] The purpose of this application is to provide an air conditioner and control method that uses the refrigerant of the air conditioner to cool down the photovoltaic thermal panel, thereby improving the photoelectric conversion efficiency of the photovoltaic thermal panel and also improving the heat exchange efficiency of the outdoor heat exchanger.

[0006] This application provides an air conditioner, including: A first refrigerant line and a control unit are connected in parallel with the refrigerant line of the outdoor heat exchanger. The first refrigerant line is used to dissipate heat and cool the photovoltaic hot panel. A throttling valve is installed on the first refrigerant line. The control unit is used to obtain the operating mode of the air conditioner and the current temperature of the photovoltaic hot panel. The control unit is also used to dissipate heat from the photovoltaic hot panel using the first refrigerant line when the air conditioner is in heating mode, and to adjust the opening of the throttling valve on the first refrigerant line based on the current temperature of the photovoltaic hot panel.

[0007] Optionally, a first throttling valve is provided on the refrigerant pipeline of the outdoor heat exchanger; the control unit is specifically used to control the refrigerant of the air conditioner to flow from the compressor through the four-way valve to the indoor heat exchanger after flowing out of the indoor heat exchanger, and then through the first throttling valve to the outdoor heat exchanger after flowing out of the indoor heat exchanger, and finally back to the compressor when the air conditioner is in heating mode.

[0008] Optionally, a second throttling valve and a photovoltaic heat exchanger are provided on the first refrigerant pipeline; the control unit is specifically used to control the refrigerant of the air conditioner to flow from the compressor through the four-way valve to the indoor heat exchanger when the air conditioner is in heating mode, and then flow from the indoor heat exchanger through the second throttling valve to the photovoltaic heat exchanger, and finally return to the compressor.

[0009] Optionally, the control unit is specifically configured to, when the air conditioner is in heating mode, calculate the temperature difference between the current temperature of the photovoltaic panel and the preset optimal operating temperature, and determine the opening adjustment coefficient based on the temperature difference; the opening adjustment coefficient is positively correlated with the temperature difference; the control unit is further configured to multiply the opening adjustment coefficient by the default opening of the second throttle valve to obtain the target opening, and control the opening of the second throttle valve according to the target opening.

[0010] Optionally, the air conditioner further includes: a second refrigerant pipeline connected in parallel with the refrigerant pipeline of the indoor heat exchanger; the second refrigerant pipeline is used to heat the water in the water tank; a third throttle valve and a hot water heat exchanger are provided on the second refrigerant pipeline; the control unit is specifically used to control the refrigerant of the air conditioner to flow from the compressor through the hot water heat exchanger and the third throttle valve when the air conditioner is in heating mode, and then flow from the hot water heat exchanger through the first throttle valve through the outdoor heat exchanger, and finally return to the compressor.

[0011] This application provides a control method, including: The system obtains the operating mode of the air conditioner and the current temperature of the photovoltaic hot plate; when the air conditioner is in heating mode, it uses the first refrigerant pipeline to dissipate heat from the photovoltaic hot plate, and adjusts the opening of the throttle valve on the first refrigerant pipeline based on the current temperature of the photovoltaic hot plate.

[0012] Optionally, a first throttling valve is provided on the refrigerant pipeline of the outdoor heat exchanger; the step of using the first refrigerant pipeline to dissipate heat from the photovoltaic hot plate and adjusting the opening of the throttling valve on the first refrigerant pipeline based on the current temperature of the photovoltaic hot plate includes: when the air conditioner is in heating mode, controlling the refrigerant of the air conditioner to flow from the compressor through the four-way valve through the indoor heat exchanger, and then from the indoor heat exchanger through the first throttling valve through the outdoor heat exchanger, and finally back to the compressor.

[0013] Optionally, the step of using the first refrigerant pipeline to dissipate heat from the photovoltaic hot plate and adjusting the opening of the throttle valve on the first refrigerant pipeline based on the current temperature of the photovoltaic hot plate includes: when the air conditioner is in heating mode, controlling the refrigerant of the air conditioner to flow from the compressor through a four-way valve to the indoor heat exchanger, and then from the indoor heat exchanger through the second throttle valve to the photovoltaic hot plate heat exchanger, and finally back to the compressor.

[0014] Optionally, a second throttling valve and a photovoltaic heat exchanger are provided on the first refrigerant pipeline; the step of using the first refrigerant pipeline to dissipate heat from the photovoltaic heat exchanger and adjusting the opening of the throttling valve on the first refrigerant pipeline based on the current temperature of the photovoltaic heat exchanger includes: when the air conditioner is in heating mode, calculating the temperature difference between the current temperature of the photovoltaic heat exchanger and the preset optimal operating temperature, and determining an opening adjustment coefficient based on the temperature difference; the opening adjustment coefficient is positively correlated with the temperature difference; multiplying the opening adjustment coefficient by the default opening of the second throttling valve to obtain the target opening, and controlling the opening of the second throttling valve according to the target opening.

[0015] Optionally, the air conditioner further includes: a second refrigerant pipeline connected in parallel with the refrigerant pipeline of the indoor heat exchanger; the second refrigerant pipeline is used to heat the water in the water tank; a third throttle valve and a hot water heat exchanger are provided on the second refrigerant pipeline; the step of using the first refrigerant pipeline to dissipate heat from the photovoltaic heat plate and adjusting the opening of the throttle valve on the first refrigerant pipeline based on the current temperature of the photovoltaic heat plate includes: when the air conditioner is in heating mode, controlling the refrigerant of the air conditioner to flow from the compressor through the hot water heat exchanger and the third throttle valve, and then from the hot water heat exchanger through the first throttle valve through the outdoor heat exchanger, and finally back to the compressor.

[0016] This application also provides a control device for use in an air conditioner, the device comprising: The acquisition module is used to acquire the operating mode of the air conditioner and the current temperature of the photovoltaic hot plate; the control module is used to dissipate heat from the photovoltaic hot plate using the first refrigerant pipeline when the air conditioner is in heating mode, and to adjust the opening of the throttle valve on the first refrigerant pipeline based on the current temperature of the photovoltaic hot plate.

[0017] Optionally, a first throttling valve is provided on the refrigerant pipeline of the outdoor heat exchanger; the control module is specifically used to control the refrigerant of the air conditioner to flow from the compressor through the four-way valve to the indoor heat exchanger after flowing out of the indoor heat exchanger, and then through the first throttling valve to the outdoor heat exchanger after flowing out of the indoor heat exchanger, and finally back to the compressor when the air conditioner is in heating mode.

[0018] Optionally, the control module is specifically used to control the refrigerant of the air conditioner to flow from the compressor through the four-way valve to the indoor heat exchanger when the air conditioner is in heating mode, and then flow from the indoor heat exchanger through the second throttle valve to the photovoltaic heat exchanger, and finally return to the compressor.

[0019] Optionally, a second throttling valve and a photovoltaic heat exchanger are provided on the first refrigerant pipeline; the control module is specifically used to calculate the temperature difference between the current temperature of the photovoltaic heat exchanger and the preset optimal operating temperature when the air conditioner is in heating mode, and determine the opening adjustment coefficient based on the temperature difference; the opening adjustment coefficient is positively correlated with the temperature difference; the control module is also specifically used to multiply the opening adjustment coefficient by the default opening of the second throttling valve to obtain the target opening, and control the opening of the second throttling valve according to the target opening.

[0020] Optionally, the air conditioner further includes: a second refrigerant pipeline connected in parallel with the refrigerant pipeline of the indoor heat exchanger; the second refrigerant pipeline is used to heat the water in the water tank; a third throttle valve and a hot water heat exchanger are provided on the second refrigerant pipeline; the control module is specifically used to control the refrigerant of the air conditioner to flow from the compressor through the hot water heat exchanger and the third throttle valve when the air conditioner is in heating mode, and then flow from the hot water heat exchanger through the first throttle valve through the outdoor heat exchanger, and finally return to the compressor.

[0021] This application also provides a computer program product, including a computer program / instructions that, when executed by a processor, implement the steps of any of the control methods described above.

[0022] This application also provides an electronic device, which may be an air conditioner, comprising a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the program to implement the steps of any of the control methods described above.

[0023] This application also provides a computer-readable storage medium having a computer program stored thereon, which, when executed by a processor, implements the steps of any of the control methods described above.

[0024] The air conditioner and control method provided in this application include a first refrigerant pipeline connected in parallel with the refrigerant pipeline of an outdoor heat exchanger and a control unit. The first refrigerant pipeline is used to dissipate heat and cool the photovoltaic hot panel. A throttling valve is installed on the first refrigerant pipeline. The control unit is used to acquire the operating mode of the air conditioner and the current temperature of the photovoltaic hot panel. The control unit is also used to, when the air conditioner is in heating mode, utilize the first refrigerant pipeline to dissipate heat from the photovoltaic hot panel and adjust the opening of the throttling valve on the first refrigerant pipeline based on the current temperature of the photovoltaic hot panel. In this way, the refrigerant of the air conditioner can be used to cool the photovoltaic hot panel, improving the photoelectric conversion efficiency of the photovoltaic hot panel and also improving the heat exchange efficiency of the outdoor heat exchanger. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the air conditioner structure provided in this application; Figure 2 This is a flowchart illustrating the control method provided in this application; Figure 3 This is a schematic diagram of the control device provided in this application; Figure 4 This is a schematic diagram of the structure of the electronic device provided in this application. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0028] The terms "first," "second," etc., used in the specification and claims of this application are used to distinguish similar objects and not to describe a specific order or sequence. It should be understood that such use of data can be interchanged where appropriate so that embodiments of this application can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first," "second," etc., are generally of the same class and the number of objects is not limited; for example, a first object can be one or more. Furthermore, in the specification and claims, "and / or" indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0029] The operating principle of the air conditioner involved in the embodiments of this application is described in detail below: The compressor compresses the refrigerant and delivers it through pipes to the condenser. The high-temperature, high-pressure gaseous refrigerant releases heat in the condenser, transforming into a medium-temperature, high-pressure liquid refrigerant. This medium-temperature, high-pressure liquid refrigerant then passes through a capillary tube (throttling unit) to reduce its pressure, becoming a low-temperature, low-pressure liquid refrigerant. This low-temperature, low-pressure liquid refrigerant is then delivered to the evaporator, where it evaporates into a gas, absorbing a significant amount of heat during the evaporation process. Finally, the low-temperature, low-pressure gaseous refrigerant in the evaporator is delivered to the compressor to participate in the next cycle. When the air conditioner is cooling, the outdoor unit's heat exchanger acts as the condenser, and the indoor unit's heat exchanger acts as the evaporator; conversely, when the air conditioner is heating, the outdoor unit's heat exchanger acts as the evaporator, and the indoor unit's heat exchanger acts as the condenser.

[0030] A solar photovoltaic (PVT) thermal panel is a device that combines photovoltaic power generation and solar energy harvesting. It not only converts solar energy into electricity but also converts waste heat into thermal energy, thereby improving energy utilization efficiency. Generally, the power generation efficiency of a solar PVT panel varies with temperature. At lower temperatures, the power generation efficiency of the PVT panel is higher because the cell conductivity is higher. However, as the temperature rises, the cell conductivity decreases, leading to a reduction in power generation efficiency. Therefore, maintaining a suitable temperature is crucial for improving the power generation efficiency of PVT panels.

[0031] In response to the technical problem that photovoltaic thermal panels are easily affected by temperature, resulting in low photoelectric conversion efficiency, this application provides an air conditioner that can use the refrigerant of the air conditioner to cool down the photovoltaic thermal panel, thereby improving the photoelectric conversion efficiency of the photovoltaic thermal panel and also improving the heat exchange efficiency of the outdoor heat exchanger.

[0032] For example, the above-mentioned air conditioner includes: a first refrigerant pipeline connected in parallel with the refrigerant pipeline of the outdoor heat exchanger and a control unit, wherein the first refrigerant pipeline is used to dissipate heat and cool the photovoltaic thermal panel; and a throttling valve is provided on the first refrigerant pipeline.

[0033] For example, the control unit is configured to acquire the operating mode of the air conditioner and the current temperature of the photovoltaic hot plate; the control unit is also configured to, when the operating mode of the air conditioner is heating mode, use the first refrigerant pipeline to dissipate heat from the photovoltaic hot plate, and adjust the opening of the throttle valve set on the first refrigerant pipeline based on the current temperature of the photovoltaic hot plate.

[0034] For example, such as Figure 1 The diagram shown is a schematic diagram of the structure of an air conditioner provided in an embodiment of this application. The air conditioner has a first refrigerant pipe connected in parallel to the refrigerant pipe of the outdoor heat exchanger (the refrigerant pipe is equipped with a throttle valve 1 and the outdoor heat exchanger). The first refrigerant pipe is equipped with a throttle valve 2 (i.e. the aforementioned second throttle valve) and a heat exchanger (i.e. the aforementioned photovoltaic heat exchanger).

[0035] For example, a first throttling valve is provided on the refrigerant pipeline of the outdoor heat exchanger; the control unit is specifically used to control the refrigerant of the air conditioner to flow from the compressor through the four-way valve to the indoor heat exchanger after flowing out of the indoor heat exchanger, and then through the first throttling valve to the outdoor heat exchanger after flowing out of the indoor heat exchanger, and finally back to the compressor when the air conditioner is in heating mode.

[0036] For example, the first refrigerant pipeline is provided with a second throttle valve and a photovoltaic heat exchanger; the control unit is specifically used to control the refrigerant of the air conditioner to flow from the compressor through the four-way valve to the indoor heat exchanger after flowing out of the indoor heat exchanger, and then through the second throttle valve to the photovoltaic heat exchanger after flowing out of the indoor heat exchanger, and finally back to the compressor when the air conditioner is in heating mode.

[0037] For example, such as Figure 1 As shown, when the air conditioner is in heating mode, the refrigerant flows as follows: a) The refrigerant flows out of the compressor, passes through the four-way valve and the solenoid valve, and then flows into the indoor unit heat exchanger for heat exchange. After that, it flows through the expansion valve 1 (i.e., the first expansion valve mentioned above) into the outdoor heat exchanger for heat exchange, and then flows back to the compressor; b) The refrigerant flows out of the compressor, passes through the four-way valve and the solenoid valve, and then flows into the indoor unit heat exchanger for heat exchange. After that, it flows through the expansion valve 2 into the solar PVT panel heat exchanger for heat exchange, and then flows back to the compressor.

[0038] For example, the air conditioner further includes: a second refrigerant pipeline connected in parallel with the refrigerant pipeline of the indoor heat exchanger; the second refrigerant pipeline is used to heat the water in the water tank; a third throttle valve and a hot water heat exchanger are provided on the second refrigerant pipeline; the control unit is specifically used to control the refrigerant of the air conditioner to flow from the compressor through the hot water heat exchanger and the third throttle valve when the air conditioner is in heating mode, and then flow from the hot water heat exchanger through the first throttle valve through the outdoor heat exchanger, and finally return to the compressor.

[0039] It should be noted that since the first refrigerant line is connected in parallel with the refrigerant line of the outdoor heat exchanger, the refrigerant flowing out of the second refrigerant line can not only return to the compressor through the refrigerant line of the outdoor heat exchanger, but also return to the compressor through the first refrigerant line. Using the first refrigerant line to cool the photovoltaic panels can also effectively increase the heat exchange area of ​​the outdoor heat exchanger, and in low-temperature and high-humidity environments, it can also prevent frost formation on the surface of the outdoor heat exchanger to a certain extent.

[0040] For example, such as Figure 1 As shown, when the air conditioner is in heating mode, the high-temperature refrigerant can also flow to the hot water heat exchanger to heat the water in the water tank. c, that is, the refrigerant flows out of the compressor, passes through the proportional valve, enters the water heater heat exchanger for heat exchange, then passes through throttle valve 3 and throttle valve 2, flows into the solar PVT panel heat exchanger for heat exchange, and then flows back to the compressor; d, the refrigerant flows out of the compressor, passes through the proportional valve, enters the water heater heat exchanger for heat exchange, then passes through throttle valve 3 and throttle valve 1, flows into the outdoor heat exchanger for heat exchange, and then flows back to the compressor.

[0041] It should be noted that in heating mode, refrigerant circulation can be achieved through any combination of the first refrigerant line, the refrigerant line of the outdoor heat exchanger, the second refrigerant line, and the refrigerant line of the indoor heat exchanger. The specific combination can be adjusted according to actual needs.

[0042] The air conditioner provided in this application includes a first refrigerant pipeline connected in parallel with the refrigerant pipeline of an outdoor heat exchanger and a control unit. The first refrigerant pipeline is used to dissipate heat and cool the photovoltaic hot panel. A throttling valve is installed on the first refrigerant pipeline. The control unit is used to acquire the operating mode of the air conditioner and the current temperature of the photovoltaic hot panel. The control unit is also used to, when the air conditioner is in heating mode, utilize the first refrigerant pipeline to dissipate heat from the photovoltaic hot panel and adjust the opening of the throttling valve on the first refrigerant pipeline based on the current temperature of the photovoltaic hot panel. In this way, the refrigerant of the air conditioner can be used to cool the photovoltaic hot panel, improving the photoelectric conversion efficiency of the photovoltaic hot panel, and also improving the heat exchange efficiency of the outdoor heat exchanger.

[0043] The control method provided in this application will be described in detail below with reference to the accompanying drawings, through specific embodiments and application scenarios.

[0044] like Figure 2 As shown in the embodiment of this application, a control method is provided, which may include the following steps 201 and 202: Step 201: Obtain the operating mode of the air conditioner and the current temperature of the photovoltaic panel.

[0045] Step 202: When the air conditioner is in heating mode, the first refrigerant pipe is used to dissipate heat from the photovoltaic hot plate, and the opening of the throttle valve on the first refrigerant pipe is adjusted based on the current temperature of the photovoltaic hot plate.

[0046] Specifically, regarding the refrigerant circulation during indoor heating in heating mode, step 202 above may include the following step 202a: Step 202a: When the air conditioner is in heating mode, the refrigerant flows out of the compressor, passes through the four-way valve to the indoor heat exchanger, and then flows out of the indoor heat exchanger to the outdoor heat exchanger through the first throttle valve, and finally flows back to the compressor.

[0047] Specifically, regarding the refrigerant circulation during the cooling of the photovoltaic hot panel in heating mode, step 202 above may include the following step 202b: Step 202b: When the air conditioner is in heating mode, the refrigerant flows out of the compressor, passes through the four-way valve to the indoor heat exchanger, and then flows out of the indoor heat exchanger through the second throttle valve to the photovoltaic heat exchanger, and finally flows back to the compressor.

[0048] Specifically, in step 202b above, the control of the second throttle valve may further include the following steps 202b1 and 202b2: Step 202b1: When the air conditioner is in heating mode, calculate the temperature difference between the current temperature of the photovoltaic panel and the preset optimal operating temperature, and determine the opening adjustment coefficient based on the temperature difference.

[0049] The opening adjustment coefficient is positively correlated with the temperature difference.

[0050] Step 202b2: Multiply the opening adjustment coefficient by the default opening of the second throttle valve to obtain the target opening, and control the opening of the second throttle valve according to the target opening.

[0051] Specifically, regarding the refrigerant circulation process when heating water in the water heater tank in heating mode, step 202 may further include the following step 202c: Step 202c: When the air conditioner is in heating mode, the refrigerant flows from the compressor through the hot water heat exchanger and the third throttle valve, then flows from the hot water heat exchanger through the first throttle valve through the outdoor heat exchanger, and finally returns to the compressor.

[0052] The control method provided in this application embodiment acquires the operating mode of the air conditioner and the current temperature of the photovoltaic hot plate. When the air conditioner is in heating mode, the first refrigerant pipeline is used to dissipate heat from the photovoltaic hot plate, and the opening of the throttle valve on the first refrigerant pipeline is adjusted based on the current temperature of the photovoltaic hot plate. In this way, the refrigerant from the air conditioner can be used to cool the photovoltaic hot plate, improving the photoelectric conversion efficiency of the photovoltaic hot plate, and also improving the heat exchange efficiency of the outdoor heat exchanger.

[0053] It should be noted that the control method provided in this application embodiment can be executed by a control device or a control module within that control device for executing the control method. This application embodiment uses the execution of the control method by a control device as an example to illustrate the control device provided in this application embodiment.

[0054] It should be noted that, in the embodiments of this application, the control methods shown in the accompanying drawings are all illustrated by way of example with reference to one of the accompanying drawings in the embodiments of this application. In specific implementation, the control methods shown in the accompanying drawings of the above-mentioned methods can also be implemented in conjunction with any other accompanying drawings that can be combined with the above embodiments, which will not be elaborated here.

[0055] The control device provided in this application is described below, and the control method described below can be referred to in correspondence with the control method described above.

[0056] Figure 3 This is a schematic diagram of the structure of a control device provided in an embodiment of this application, as shown below. Figure 3 As shown, it specifically includes: The acquisition module 301 is used to acquire the operating mode of the air conditioner and the current temperature of the photovoltaic hot plate; the control module 302 is used to dissipate heat from the photovoltaic hot plate using the first refrigerant pipeline when the air conditioner is in heating mode, and to adjust the opening of the throttle valve set on the first refrigerant pipeline based on the current temperature of the photovoltaic hot plate.

[0057] Optionally, a first throttling valve is provided on the refrigerant pipeline of the outdoor heat exchanger; the control module 302 is specifically used to control the refrigerant of the air conditioner to flow from the compressor through the four-way valve to the indoor heat exchanger after flowing out of the indoor heat exchanger, and then through the first throttling valve to the outdoor heat exchanger after flowing out of the indoor heat exchanger, and finally back to the compressor when the air conditioner is in heating mode.

[0058] Optionally, the control module 302 is specifically used to control the refrigerant of the air conditioner to flow from the compressor through the four-way valve to the indoor heat exchanger when the air conditioner is in heating mode, and then flow from the indoor heat exchanger through the second throttle valve to the photovoltaic heat exchanger, and finally return to the compressor.

[0059] Optionally, a second throttle valve and a photovoltaic heat exchanger are provided on the first refrigerant pipeline; the control module 302 is specifically used to calculate the temperature difference between the current temperature of the photovoltaic heat exchanger and the preset optimal operating temperature when the air conditioner is in heating mode, and determine the opening adjustment coefficient based on the temperature difference; the opening adjustment coefficient is positively correlated with the temperature difference; the control module 302 is also specifically used to multiply the opening adjustment coefficient by the default opening of the second throttle valve to obtain the target opening, and control the opening of the second throttle valve according to the target opening.

[0060] Optionally, the air conditioner further includes: a second refrigerant pipeline connected in parallel with the refrigerant pipeline of the indoor heat exchanger; the second refrigerant pipeline is used to heat the water in the water tank; a third throttle valve and a hot water heat exchanger are provided on the second refrigerant pipeline; the control module 302 is specifically used to control the refrigerant of the air conditioner to flow from the compressor through the hot water heat exchanger and the third throttle valve when the air conditioner is in heating mode, and then flow from the hot water heat exchanger through the first throttle valve through the outdoor heat exchanger, and finally return to the compressor.

[0061] The control device provided in this application acquires the operating mode of the air conditioner and the current temperature of the photovoltaic hot plate. When the air conditioner is in heating mode, it uses the first refrigerant pipeline to dissipate heat from the photovoltaic hot plate and adjusts the opening of the throttle valve on the first refrigerant pipeline based on the current temperature of the photovoltaic hot plate. In this way, the refrigerant from the air conditioner can be used to cool the photovoltaic hot plate, improving the photoelectric conversion efficiency of the photovoltaic hot plate and also improving the heat exchange efficiency of the outdoor heat exchanger.

[0062] Figure 4 This example illustrates a schematic diagram of the physical structure of an electronic device, which can be the aforementioned air conditioner, such as... Figure 4As shown, the electronic device may include a processor 410, a communication interface 420, a memory 430, and a communication bus 440. The processor 410, communication interface 420, and memory 430 communicate with each other via the communication bus 440. The processor 410 can call logical instructions in the memory 430 to execute a control method. This method includes: acquiring the operating mode of the air conditioner and the current temperature of the photovoltaic hot plate; when the air conditioner is in heating mode, using the first refrigerant pipe to dissipate heat from the photovoltaic hot plate, and adjusting the opening of the throttle valve on the first refrigerant pipe based on the current temperature of the photovoltaic hot plate. In this way, the refrigerant of the air conditioner can be used to cool the photovoltaic hot plate, improving the photoelectric conversion efficiency of the photovoltaic hot plate and also improving the heat exchange efficiency of the outdoor heat exchanger.

[0063] Furthermore, the logical instructions in the aforementioned memory 430 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, or a part of the technical solution, can be embodied in the form of a software product. This computer software product is stored in a storage medium and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute all or part of the steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks.

[0064] On the other hand, this application also provides a computer program product, which includes a computer program stored on a computer-readable storage medium. The computer program includes program instructions, and when the program instructions are executed by a computer, the computer can execute the control methods provided by the above-described methods. The method includes: acquiring the operating mode of the air conditioner and the current temperature of the photovoltaic hot plate; when the air conditioner is in heating mode, using the first refrigerant pipeline to dissipate heat from the photovoltaic hot plate, and adjusting the opening of the throttle valve on the first refrigerant pipeline based on the current temperature of the photovoltaic hot plate. In this way, the refrigerant of the air conditioner can be used to cool the photovoltaic hot plate, improving the photoelectric conversion efficiency of the photovoltaic hot plate, and also improving the heat exchange efficiency of the outdoor heat exchanger.

[0065] Furthermore, this application also provides a computer-readable storage medium storing a computer program that, when executed by a processor, performs the aforementioned control methods. The method includes: acquiring the operating mode of an air conditioner and the current temperature of the photovoltaic hot plate; when the air conditioner is in heating mode, using the first refrigerant pipeline to dissipate heat from the photovoltaic hot plate, and adjusting the opening of a throttle valve on the first refrigerant pipeline based on the current temperature of the photovoltaic hot plate. In this way, the refrigerant from the air conditioner can be used to cool the photovoltaic hot plate, improving the photoelectric conversion efficiency of the photovoltaic hot plate and also increasing the heat exchange efficiency of the outdoor heat exchanger.

[0066] The device embodiments described above are merely illustrative. The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the modules can be selected to achieve the purpose of this embodiment according to actual needs. Those skilled in the art can understand and implement this without any creative effort.

[0067] Through the above description of the embodiments, those skilled in the art can clearly understand that each embodiment can be implemented by means of software plus necessary general-purpose hardware platforms, and of course, it can also be implemented by hardware. Based on this understanding, the above technical solutions, in essence or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product can be stored in a computer-readable storage medium, such as ROM / RAM, magnetic disk, optical disk, etc., and includes several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute the methods described in the various embodiments or some parts of the embodiments.

[0068] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. An air conditioner, characterized in that, include: A first refrigerant pipeline and a control unit are connected in parallel with the refrigerant pipeline of the outdoor heat exchanger. The first refrigerant pipeline is used to dissipate heat and cool the photovoltaic thermal panel. A throttling valve is installed on the first refrigerant pipeline. The control unit is used to obtain the operating mode of the air conditioner and the current temperature of the photovoltaic panel; The control unit is further configured to, when the air conditioner is in heating mode, use the first refrigerant pipe to dissipate heat from the photovoltaic hot plate, and adjust the opening of the throttle valve on the first refrigerant pipe based on the current temperature of the photovoltaic hot plate.

2. The air conditioner according to claim 1, characterized in that, The outdoor heat exchanger is equipped with a first throttling valve on its refrigerant pipeline. The control unit is specifically used to control the refrigerant of the air conditioner to flow from the compressor through the four-way valve to the indoor heat exchanger when the air conditioner is in heating mode, and then from the indoor heat exchanger through the first throttle valve to the outdoor heat exchanger, and finally back to the compressor.

3. The air conditioner according to claim 1, characterized in that, The first refrigerant pipeline is equipped with a second throttle valve and a photovoltaic heat exchanger; The control unit is specifically used to control the refrigerant of the air conditioner to flow from the compressor through the four-way valve to the indoor heat exchanger when the air conditioner is in heating mode, and then from the indoor heat exchanger through the second throttle valve to the photovoltaic heat exchanger, and finally back to the compressor.

4. The air conditioner according to claim 3, characterized in that, The control unit is specifically used to calculate the temperature difference between the current temperature of the photovoltaic panel and the preset optimal operating temperature when the air conditioner is in heating mode, and to determine the opening adjustment coefficient based on the temperature difference; the opening adjustment coefficient is positively correlated with the temperature difference. The control unit is further configured to multiply the opening adjustment coefficient by the default opening of the second throttle valve to obtain the target opening, and control the opening of the second throttle valve according to the target opening.

5. The air conditioner according to any one of claims 1 to 4, characterized in that, The air conditioner further includes: a second refrigerant pipeline connected in parallel with the refrigerant pipeline of the indoor heat exchanger; the second refrigerant pipeline is used to heat the water in the water tank; a third throttling valve and a hot water heat exchanger are installed on the second refrigerant pipeline; a first throttling valve is installed on the heat exchange pipeline of the outdoor heat exchanger; The control unit is specifically used to control the refrigerant of the air conditioner to flow from the compressor through the hot water heat exchanger and the third throttle valve when the air conditioner is in heating mode, and then flow from the hot water heat exchanger through the first throttle valve through the outdoor heat exchanger, and finally return to the compressor.

6. A control method, characterized in that, A control unit for an air conditioner, the air conditioner comprising: a first refrigerant line connected in parallel with the refrigerant line of an outdoor heat exchanger and a control unit, the first refrigerant line being used to dissipate heat and cool the photovoltaic thermal panel; a throttling valve being provided on the first refrigerant line; The method includes: Obtain the operating mode of the air conditioner and the current temperature of the photovoltaic panel; When the air conditioner is in heating mode, the first refrigerant pipe is used to dissipate heat from the photovoltaic hot plate, and the opening of the throttle valve on the first refrigerant pipe is adjusted based on the current temperature of the photovoltaic hot plate.

7. The method according to claim 6, characterized in that, The outdoor heat exchanger is equipped with a first throttling valve on its refrigerant pipeline. The step of using the first refrigerant pipeline to dissipate heat from the photovoltaic hot plate, and adjusting the opening of the throttle valve on the first refrigerant pipeline based on the current temperature of the photovoltaic hot plate, includes: When the air conditioner is in heating mode, the refrigerant flows from the compressor through the four-way valve to the indoor heat exchanger, then flows from the indoor heat exchanger through the first throttle valve to the outdoor heat exchanger, and finally flows back to the compressor.

8. The method according to claim 6, characterized in that, The first refrigerant pipeline is equipped with a second throttle valve and a photovoltaic heat exchanger; The step of using the first refrigerant pipeline to dissipate heat from the photovoltaic hot plate, and adjusting the opening of the throttle valve on the first refrigerant pipeline based on the current temperature of the photovoltaic hot plate, includes: When the air conditioner is in heating mode, the refrigerant flows from the compressor through the four-way valve to the indoor heat exchanger, then flows from the indoor heat exchanger through the second throttle valve to the photovoltaic heat exchanger, and finally flows back to the compressor.

9. The method according to claim 8, characterized in that, The step of using the first refrigerant pipeline to dissipate heat from the photovoltaic hot plate, and adjusting the opening of the throttle valve on the first refrigerant pipeline based on the current temperature of the photovoltaic hot plate, includes: When the air conditioner is in heating mode, the temperature difference between the current temperature of the photovoltaic panel and the preset optimal operating temperature is calculated, and the opening adjustment coefficient is determined based on the temperature difference; the opening adjustment coefficient is positively correlated with the temperature difference. The opening adjustment coefficient is multiplied by the default opening of the second throttle valve to obtain the target opening, and the opening of the second throttle valve is controlled according to the target opening.

10. The method according to any one of claims 6 to 9, characterized in that, The air conditioner further includes: a second refrigerant pipeline connected in parallel with the refrigerant pipeline of the indoor heat exchanger; the second refrigerant pipeline is used to heat the water in the water tank; a third throttling valve and a hot water heat exchanger are installed on the second refrigerant pipeline; a first throttling valve is installed on the heat exchange pipeline of the outdoor heat exchanger; The step of using the first refrigerant pipeline to dissipate heat from the photovoltaic hot plate, and adjusting the opening of the throttle valve on the first refrigerant pipeline based on the current temperature of the photovoltaic hot plate, includes: When the air conditioner is in heating mode, the refrigerant flows from the compressor through the hot water heat exchanger and the third throttle valve, then flows from the hot water heat exchanger through the first throttle valve through the outdoor heat exchanger, and finally returns to the compressor.

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