Control method and device for air conditioner, air conditioner, storage medium

Abstract

The application relates to the technical field of intelligent household appliances, and discloses a control method for an air conditioner, which comprises the following steps: acquiring the temperature of a frequency converter power module and the temperature of an indoor heat exchanger; and in the case that the temperature of the frequency converter power module is greater than or equal to the temperature of the indoor heat exchanger, controlling a first flow regulating valve and a second flow regulating valve to make the water in a circulating water circuit flow into a heat dissipation pipeline to dissipate heat for the frequency converter power module. During the operation of a two-coupling-supply air conditioner, in the case that the temperature of the frequency converter power module is higher than the temperature of the indoor heat exchanger, it is indicated that the frequency converter power module needs to dissipate heat. At this time, by controlling the first flow regulating valve and the second flow regulating valve, the water with a relatively low temperature in the circulating water circuit can flow into the heat dissipation pipeline, so that the heat dissipation pipeline is used to dissipate heat for the frequency converter power module, thereby reducing the overheat damage of the frequency converter power module of the two-coupling-supply air conditioner. The application further discloses a control device for an air conditioner, an air conditioner and a storage medium.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of intelligent household appliances, for example to a control method and device for an air conditioner, an air conditioner and a storage medium. BACKGROUND

[0002] At present, if the frequency converter power module of the air conditioner is operated for a long time in a high-temperature environment, the frequency converter power module is prone to damage. Therefore, the frequency converter power module needs to be cooled during operation of the air conditioner.

[0003] In order to cool the frequency converter power module, a cooling control method for the frequency converter power module is provided in the related art, which includes: a refrigerated water circuit is arranged on a radiator of the frequency converter power module; a refrigerated water valve is connected to an inlet and / or an outlet of the refrigerated water circuit, and a water pump is arranged between the refrigerated water valves connected to the outlet and the inlet. The refrigerated water is circulated by controlling the refrigerated water valves and the water pump. When the device in which the frequency converter is located is operated, it is determined whether the radiator can normally cool the refrigerant according to the temperature value of the frequency converter power module. If it is determined that the radiator cannot normally cool the refrigerant, the water pump and the refrigerated water valve are controlled to be opened to perform auxiliary cooling by the refrigerated water circulation.

[0004] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in the related art:

[0005] Although the related art can cool the frequency converter power module, the related art is only applicable to air-cooled air conditioners and can cool the frequency converter power module of the air-cooled air conditioner. However, the related art cannot be applied to a two-supply air conditioner in which both the indoor unit and the floor heating adopt a circulating water circuit, that is, the related art cannot cool the frequency converter power module of the two-supply air conditioner.

[0006] It should be noted that the information disclosed in the above background section is only used to strengthen the understanding of the background of the present application, and therefore can include information that does not constitute prior art known to those of ordinary skill in the art. SUMMARY

[0007] In order to have a basic understanding of some aspects of the disclosed embodiments, the following is a simple summary. The summary is not a general review, nor is it intended to determine the key / important elements or delineate the scope of protection of these embodiments, but as a prelude to the detailed description below.

[0008] The embodiments of the present disclosure provide a control method and device for an air conditioner, an air conditioner and a storage medium, which can cool the frequency converter power module of the two-supply air conditioner, and reduce the overheat damage of the frequency converter power module of the two-supply air conditioner.

[0009] In some embodiments, the air conditioner comprises an outdoor unit, an indoor unit, a heat exchange device, and a frequency converter power module; the indoor unit comprises a circulating water circuit, an indoor heat exchanger, and a circulating water pump, and the indoor heat exchanger and the circulating water pump are connected in series in the circulating water circuit; wherein the air conditioner further comprises a heat dissipation pipeline passing through the frequency converter power module, a first water inlet of the heat dissipation pipeline is connected to the circulating water circuit between a water outlet of the heat exchange device and an inlet of the indoor heat exchanger, a second water inlet of the heat dissipation pipeline is connected to the circulating water circuit between an outlet of the indoor heat exchanger and a return water inlet of the heat exchange device, and a water outlet of the heat dissipation pipeline is connected to the return water inlet of the heat exchange device; the first water inlet of the heat dissipation pipeline is provided with a first flow regulating valve, and the second water inlet of the heat dissipation pipeline is provided with a second flow regulating valve; and the method comprises:

[0010] obtaining a temperature of the frequency converter power module;

[0011] obtaining a temperature of the indoor heat exchanger;

[0012] in a case where the temperature of the frequency converter power module is greater than or equal to the temperature of the indoor heat exchanger, controlling the first flow regulating valve and the second flow regulating valve to make the water in the circulating water circuit flow into the heat dissipation pipeline to dissipate heat for the frequency converter power module.

[0013] Optionally, the temperature of the indoor heat exchanger comprises an inlet temperature of the indoor heat exchanger or an outlet temperature of the indoor heat exchanger.

[0014] Optionally, obtaining the temperature of the indoor heat exchanger comprises: in a case where the air conditioner operates in a heating mode, obtaining the inlet temperature of the indoor heat exchanger; or in a case where the air conditioner operates in a cooling mode, obtaining the outlet temperature of the indoor heat exchanger.

[0015] Optionally, controlling the first flow regulating valve and the second flow regulating valve comprises: controlling the first flow regulating valve and the second flow regulating valve according to the temperature of the frequency converter power module.

[0016] Optionally, in a case where the air conditioner operates in the heating mode, controlling the first flow regulating valve and the second flow regulating valve according to the temperature of the frequency converter power module comprises: in a case where the temperature of the frequency converter power module is less than a temperature threshold, opening the first flow regulating valve to a first opening degree and controlling the second flow regulating valve to be closed; or in a case where the temperature of the frequency converter power module is equal to the temperature threshold, opening the first flow regulating valve to a second opening degree and controlling the second flow regulating valve to be closed; or in a case where the temperature of the frequency converter power module is greater than the temperature threshold, controlling the first flow regulating valve to be closed and opening the second flow regulating valve to the first opening degree; wherein the first opening degree is less than the second opening degree.

[0017] Optionally, after the first flow regulating valve is controlled to be closed and the second flow regulating valve is controlled to be opened to the first opening degree in the case that the temperature of the inverter power module is greater than the temperature threshold, the method further comprises: obtaining a first time length during which the first flow regulating valve is kept closed; and adjusting the first flow regulating valve and the second flow regulating valve according to a current temperature of the inverter power module in the case that the first time length reaches a time threshold.

[0018] Optionally, the adjusting the first flow regulating valve and the second flow regulating valve according to the current temperature of the inverter power module in the case that the first time length reaches the time threshold comprises: controlling the first flow regulating valve to be kept closed and controlling the second flow regulating valve to be opened to a second opening degree in the case that the current temperature of the inverter power module is greater than the temperature threshold.

[0019] Optionally, the controlling the first flow regulating valve and the second flow regulating valve according to the temperature of the inverter power module in the case that the air conditioner operates in the cooling mode comprises: controlling the first flow regulating valve to be closed and controlling the second flow regulating valve to be opened to the first opening degree in the case that the temperature of the inverter power module is less than the temperature threshold; or controlling the first flow regulating valve to be closed and controlling the second flow regulating valve to be opened to the second opening degree in the case that the temperature of the inverter power module is equal to the temperature threshold; or controlling the first flow regulating valve to be opened to the first opening degree and controlling the second flow regulating valve to be closed in the case that the temperature of the inverter power module is greater than the temperature threshold; wherein the first opening degree is less than the second opening degree.

[0020] Optionally, after the first flow regulating valve is controlled to be opened to the first opening degree and the second flow regulating valve is controlled to be closed in the case that the temperature of the inverter power module is greater than the temperature threshold, the method further comprises: obtaining a second time length during which the second flow regulating valve is kept closed; and adjusting the first flow regulating valve and the second flow regulating valve according to a current temperature of the inverter power module in the case that the second time length reaches a time threshold.

[0021] Optionally, the adjusting the first flow regulating valve and the second flow regulating valve according to the current temperature of the inverter power module in the case that the second time length reaches the time threshold comprises: controlling the first flow regulating valve to be opened to the second opening degree and controlling the second flow regulating valve to be kept closed in the case that the current temperature of the inverter power module is greater than the temperature threshold.

[0022] In some embodiments, the apparatus comprises a processor and a memory storing program instructions, wherein the processor is configured to execute the aforementioned control method for the air conditioner when running the program instructions.

[0023] In some embodiments, the air conditioner comprises: an outdoor unit, an indoor unit, a heat exchange device, and a frequency converter power module; the indoor unit comprises a circulating water circuit, an indoor heat exchanger, and a circulating water pump, and the indoor heat exchanger and the circulating water pump are connected in series in the circulating water circuit; wherein the air conditioner further comprises:

[0024] a heat dissipation pipeline passing through the frequency converter power module, a first water inlet of the heat dissipation pipeline being connected to the circulating water circuit between a water outlet of the heat exchange device and an inlet of the indoor heat exchanger, a second water inlet of the heat dissipation pipeline being connected to the circulating water circuit between an outlet of the indoor heat exchanger and a return water inlet of the heat exchange device, and a water outlet of the heat dissipation pipeline being connected to the return water inlet of the heat exchange device; the first water inlet of the heat dissipation pipeline is provided with a first flow regulating valve, and the second water inlet of the heat dissipation pipeline is provided with a second flow regulating valve; wherein the first flow regulating valve and the second flow regulating valve are controlled to make the water in the circulating water circuit flow into the heat dissipation pipeline to dissipate heat for the frequency converter power module.

[0025] Optionally, the air conditioner further comprises: a first temperature sensor, a second temperature sensor, a third temperature sensor, and the aforementioned control device for the air conditioner; wherein the first temperature sensor is configured to detect the temperature at the inlet of the indoor heat exchanger; the second temperature sensor is configured to detect the temperature at the outlet of the indoor heat exchanger; and the third temperature sensor is configured to detect the temperature of the frequency converter power module.

[0026] In some embodiments, the storage medium stores program instructions, wherein the program instructions, when executed, perform the aforementioned control method for the air conditioner.

[0027] The control method and device for the air conditioner, the air conditioner, and the storage medium provided by the embodiments of the present disclosure can achieve the following technical effects:

[0028] During the operation of the two-supply air conditioner, if the temperature of the frequency converter power module is higher than the temperature of the indoor heat exchanger, it indicates that the temperature of the frequency converter power module is relatively high, i.e., the frequency converter power module needs to dissipate heat, and it also indicates that the temperature of the water in the circulating water circuit of the indoor unit is lower than the temperature of the frequency converter power module. At this time, by controlling the first flow regulating valve and the second flow regulating valve, the water with a relatively low temperature in the circulating water circuit can flow into the heat dissipation pipeline, and the heat dissipation pipeline can dissipate heat for the frequency converter power module. Thus, the overheat damage of the frequency converter power module of the two-supply air conditioner can be reduced.

[0029] The foregoing general description and the following description are only exemplary and explanatory, and are not intended to limit the present application. BRIEF DESCRIPTION OF DRAWINGS

[0030] One or more embodiments are illustrated by way of example with reference to the accompanying drawings, which are schematic and not intended to be limiting of the embodiments, and in which like referenced numerals designate similar items in the figures, and wherein:

[0031] Figure 1 is a schematic view of an air conditioner according to an embodiment of the present disclosure;

[0032] Figure 2 is a schematic view of an electrical connection of an air conditioner according to an embodiment of the present disclosure;

[0033] Figure 3 is a schematic view of a control method for an air conditioner according to an embodiment of the present disclosure;

[0034] Figure 4 is a schematic view of another control method for an air conditioner according to an embodiment of the present disclosure;

[0035] Figure 5 is a schematic view of another control method for an air conditioner according to an embodiment of the present disclosure;

[0036] Figure 6 is a schematic view of a control device for an air conditioner according to an embodiment of the present disclosure;

[0037] Figure 7 is a schematic view of another electrical connection of an air conditioner according to an embodiment of the present disclosure.

[0038] Reference signs:

[0039] 1: outdoor unit; 2: indoor unit; 3: heat exchange device; 4: frequency converter power module; 5: heat dissipation pipeline; 6: controller; 7: first temperature sensor; 8: second temperature sensor; 9: third temperature sensor;

[0040] 11: compressor; 12: four-way valve; 13: outdoor heat exchanger; 14: electronic expansion valve; 15: gas-liquid separator;

[0041] 21: circulating water pipeline; 22: indoor heat exchanger; 23: circulating water pump;

[0042] 31: drain port of heat exchange device; 32: return port of heat exchange device;

[0043] 51: first water inlet of heat dissipation pipeline; 52: second water inlet of heat dissipation pipeline; 53: first flow regulating valve; 54: second flow regulating valve; 55: water outlet of heat dissipation pipeline. DETAILED DESCRIPTION

[0044] In order to enable a more detailed understanding of the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure is described in detail below, and the accompanying drawings are used for reference only and do not limit the embodiments of the present disclosure. In the following technical description, in order to facilitate explanation, a plurality of details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments can still be implemented without these details. In other cases, well-known structures and devices can be simplified to facilitate the drawings.

[0045] The terms "first", "second", and the like in the specification and claims of the embodiments of the present disclosure and the above drawings are used to distinguish similar objects, and do not necessarily describe a specific order or sequence. It should be understood that the data used in this way can be interchanged under appropriate circumstances, so that the embodiments of the present disclosure described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0046] Unless otherwise specified, the term "a plurality of" means two or more.

[0047] In the embodiments of the present disclosure, the character " / " represents an "or" relationship between the objects before and after it. For example, A / B represents: A or B.

[0048] The term "and / or" is a description of the association between objects, which means that there can be three relationships. For example, A and / or B, which means: A or B, or, A and B, three relationships.

[0049] The term "corresponding" can refer to an association or binding relationship. A and B correspond to each other, which means that there is an association or binding relationship between A and B.

[0050] In the embodiments of the present disclosure, the smart home appliance refers to a home appliance product formed by introducing microprocessors, sensor technology, network communication technology into home appliances, having the characteristics of intelligent control, intelligent sensing and intelligent application. The operation process of the smart home appliance often depends on the application and processing of modern technologies such as the Internet of Things, the Internet and electronic chips, for example, the smart home appliance can realize remote control and management of the smart home appliance by connecting electronic devices.

[0051] At present, if the frequency converter power module of the air conditioner is operated for a long time, it is easy to be damaged. Therefore, the frequency converter power module needs to be cooled during the operation of the air conditioner.

[0052] In order to dissipate heat of a frequency converter power module, a related technology provides a heat dissipation control method of a frequency converter power module, including: arranging a chilled water circuit on a radiator of the frequency converter power module; connecting a chilled water valve at a chilled water inlet and / or a chilled water outlet of the chilled water circuit, and arranging a water pump between the chilled water valves connected at the chilled water outlet and the chilled water outlet; and realizing chilled water circulation by controlling the chilled water valves and the water pump. When a device where the frequency converter is located is running, whether the radiator can normally dissipate heat is judged according to a temperature value of the frequency converter power module; if it is judged that the radiator cannot normally dissipate heat, the water pump and the chilled water valves are controlled to be opened to realize auxiliary heat dissipation through the chilled water circulation. The related technology can dissipate heat of the frequency converter power module, but the related technology is only applicable to a wind-cooled air conditioner, and can only dissipate heat of a frequency converter power module of the wind-cooled air conditioner, and cannot be applied to a two-supply air conditioner where a circulating water circuit is used for both an indoor unit and a floor heater, that is, cannot realize heat dissipation of a frequency converter power module of the two-supply air conditioner.

[0053] The embodiment of the present disclosure provides a method which can be applied to a two-supply air conditioner, and can realize that water in a circulating water circuit of an indoor unit flows into a heat dissipation pipeline to dissipate heat of a frequency converter power module of the two-supply air conditioner when the frequency converter power module has a high temperature and needs to dissipate heat, so as to reduce the case that the frequency converter power module of the two-supply air conditioner is damaged due to overheating.

[0054] In combination with Figure 1 As shown in the figure, the embodiment of the present disclosure provides an air conditioner including an outdoor unit 1, an indoor unit 2, a heat exchange device 3, a frequency converter power module 4, and a heat dissipation pipeline 5. The outdoor unit 1 and the indoor unit 2 are connected through the heat exchange device 3, and the outdoor unit 1 and the indoor unit 2 exchange heat through the heat exchange device 3. The heat dissipation pipeline 5 passes through the frequency converter power module 4, and is used for dissipating heat of the frequency converter power module 4.

[0055] Optionally, the outdoor unit 1 includes a compressor 11, a four-way valve 12, an outdoor heat exchanger 13, an electronic expansion valve 14, and a gas-liquid separator 15.

[0056] Optionally, the indoor unit 2 includes a circulating water circuit 21, an indoor heat exchanger 22, and a circulating water pump 23. The indoor heat exchanger 22 and the circulating water pump 23 are connected in series in the circulating water circuit 21, and the circulating water pump 23 can make water in the circulating water circuit 21 flow from a water outlet 31 of the heat exchange device 3 to a water inlet 32 of the heat exchange device 3.

[0057] Optionally, the first water inlet 51 of the heat dissipation pipeline 5 is connected to the circulating water pipeline 21 between the water outlet 31 of the heat exchange device 3 and the inlet of the indoor heat exchanger 22, the second water inlet 52 of the heat dissipation pipeline 5 is connected to the circulating water pipeline 21 between the outlet of the indoor heat exchanger 22 and the water return port 32 of the heat exchange device 3, and the water outlet 55 of the heat dissipation pipeline 5 is connected to the water return port 32 of the heat exchange device 3.

[0058] Optionally, the heat dissipation pipeline 5 is in contact with the inverter power module 4, or the heat dissipation pipeline 5 is separated from the inverter power module 4.

[0059] In this way, the heat dissipation pipeline is in direct contact with the inverter power module, which can improve the heat dissipation efficiency of the heat dissipation pipeline on the inverter power module.

[0060] Optionally, the first water inlet 51 of the heat dissipation pipeline 5 is provided with a first flow regulating valve 53, and the second water inlet 52 of the heat dissipation pipeline 5 is provided with a second flow regulating valve 54. By controlling the first flow regulating valve 53 and the second flow regulating valve 54, the water in the circulating water pipeline 21 can flow into the heat dissipation pipeline 5 to dissipate heat from the inverter power module 4.

[0061] Optionally, the heat exchange device 3 is a plate heat exchanger.

[0062] Optionally, the indoor heat exchanger 22 is a water heat exchanger for air conditioning and a water heat exchanger for floor heating.

[0063] Optionally, in combination with Figure 2 As shown, the air conditioner further comprises a controller 6, a first temperature sensor 7, a second temperature sensor 8, and a third temperature sensor 9.

[0064] Optionally, the first temperature sensor 7 is arranged at the inlet of the indoor heat exchanger 22 to detect the inlet temperature of the indoor heat exchanger 22. The second temperature sensor 8 is arranged at the outlet of the indoor heat exchanger 22 to detect the outlet temperature of the indoor heat exchanger 22. The third temperature sensor 9 is arranged at the inverter power module 4 to detect the temperature of the inverter power module 4.

[0065] Optionally, the controller 6 is connected to the inverter power module 4, the first temperature sensor 7, the second temperature sensor 8, the third temperature sensor 9, the compressor 11, the four-way valve 12, the electronic expansion valve 14, the circulating water pump 23, the first flow regulating valve 53, and the second flow regulating valve 54.

[0066] Optionally, the controller 6 controls the inverter power module 4, the compressor 11, and the circulating water pump 23 to operate.

[0067] The controller 6 obtains the inlet temperature of the indoor heat exchanger 22 from the first temperature sensor 7, obtains the outlet temperature of the indoor heat exchanger 22 from the second temperature sensor 8, and obtains the temperature of the frequency converter power module 4 from the third temperature sensor 9.

[0068] The controller 6 controls the four-way valve 12 to change the flow direction of the refrigerant in the outdoor unit 1 refrigerant pipeline, so as to realize the switching between the cooling mode and the heating mode during the operation of the air conditioner. The controller 6 controls the electronic expansion valve 14 to adjust the flow of the refrigerant in the outdoor unit 1 refrigerant pipeline.

[0069] The controller 6 controls the first flow regulating valve 53 and the second flow regulating valve 54 to adjust the flow of the water flowing from the circulating water pipeline 21 into the heat dissipation pipeline 5.

[0070] In combination with the air conditioner shown in Figure 1 and Figure 2 , the embodiment of the present disclosure provides a control method for the air conditioner, in combination with Figure 3 , the method comprises the following steps.

[0071] In S301, the controller obtains the temperature of the frequency converter power module.

[0072] In S302, the controller obtains the temperature of the indoor heat exchanger.

[0073] In S303, the controller controls the first flow regulating valve and the second flow regulating valve to make the water in the circulating water pipeline flow into the heat dissipation pipeline to dissipate the heat of the frequency converter power module, in the case that the temperature of the frequency converter power module is greater than or equal to the temperature of the indoor heat exchanger.

[0074] By using the method for the air conditioner provided by the embodiment of the present disclosure, in the case that the temperature of the frequency converter power module is higher than the temperature of the indoor heat exchanger during the operation of the two-supply air conditioner, it indicates that the temperature of the frequency converter power module is relatively high, i.e., the frequency converter power module needs to dissipate heat, and it also indicates that the temperature of the water in the indoor unit circulating water pipeline is lower than the temperature of the frequency converter power module. At this time, by controlling the first flow regulating valve and the second flow regulating valve, the water with a relatively low temperature in the circulating water pipeline can flow into the heat dissipation pipeline, and the heat dissipation pipeline is used to dissipate the heat of the frequency converter power module. Therefore, the overheat damage of the frequency converter power module of the two-supply air conditioner can be reduced.

[0075] Optionally, the temperature of the indoor heat exchanger comprises the inlet temperature of the indoor heat exchanger or the outlet temperature of the indoor heat exchanger.

[0076] Optionally, the controller obtaining the temperature of the indoor heat exchanger comprises: the controller obtaining the inlet temperature of the indoor heat exchanger in the case that the air conditioner operates in the heating mode. Alternatively, the controller obtains the outlet temperature of the indoor heat exchanger in the case that the air conditioner operates in the cooling mode.

[0077] In the process of operation of the air conditioner, in the case that the water temperature in the circulating water circuit of the indoor unit is lower than the temperature of the frequency converter power module, the water in the circulating water circuit flows into the heat dissipation pipeline to achieve the effect of heat dissipation of the frequency converter power module. In order to ensure the heat dissipation effect of the frequency converter power module, in the case that the air conditioner operates in the heating mode and the temperature of the frequency converter power module is higher than the inlet temperature of the indoor heat exchanger, the water in the circulating water circuit is used to dissipate heat from the frequency converter power module. Alternatively, in the case that the air conditioner operates in the cooling mode and the temperature of the frequency converter power module is higher than the outlet temperature of the indoor heat exchanger, the water in the circulating water circuit is used to dissipate heat from the frequency converter power module. In this way, the temperature of the water flowing into the heat dissipation pipeline can be ensured to be lower than the temperature of the frequency converter power module, so that the heat dissipation effect of the heat dissipation pipeline on the frequency converter power module can be ensured.

[0078] Alternatively, the controller controls the first flow regulating valve and the second flow regulating valve, including: the controller controls the first flow regulating valve and the second flow regulating valve according to the temperature of the frequency converter power module.

[0079] In the process of heat dissipation of the heat dissipation pipeline on the frequency converter power module, the greater the flow of the water flow in the heat dissipation pipeline, the higher the heat exchange efficiency of the heat dissipation pipeline, and the lower the temperature of the heat dissipation pipeline. Moreover, if the temperature of the heat dissipation pipeline is too low, the heat exchange between the heat dissipation pipeline and the frequency converter power module will cause the temperature of the frequency converter power module to be too low. The temperature of the frequency converter power module being too low is easy to cause condensation to form on the surface of the frequency converter power module, which will cause damage to the frequency converter power module. If the temperature of the heat dissipation pipeline is too high, the heat dissipation effect on the frequency converter power module cannot be ensured. In this way, in the case that the frequency converter power module needs to be cooled, the first flow regulating valve and the second flow regulating valve are controlled according to the temperature of the frequency converter power module, so as to adjust the flow of the water flowing into the heat dissipation pipeline, so that the heat exchange efficiency of the heat dissipation pipeline matches the required heat dissipation amount of the frequency converter power module. Thus, the case that the heat exchange efficiency of the heat dissipation pipeline is too high or too low is reduced, i.e. the case that the temperature of the heat dissipation pipeline is too high or too low is reduced, so that the temperature of the frequency converter power module is not too high or too low, thereby ensuring the heat dissipation effect of the frequency converter power module and reducing the case that condensation forms on the frequency converter power module.

[0080] Optionally, in the case that the air conditioner operates in the heating mode, the controller controls the first flow regulating valve and the second flow regulating valve according to the temperature of the frequency converter power module, including: in the case that the temperature of the frequency converter power module is less than the temperature threshold, the controller opens the first flow regulating valve to the first opening degree and controls the second flow regulating valve to be closed. Alternatively, in the case that the temperature of the frequency converter power module is equal to the temperature threshold, the controller opens the first flow regulating valve to the second opening degree and controls the second flow regulating valve to be closed. Alternatively, in the case that the temperature of the frequency converter power module is greater than the temperature threshold, the controller controls the first flow regulating valve to be closed and opens the second flow regulating valve to the first opening degree. The first opening degree is less than the second opening degree.

[0081] During the heating operation of the air conditioner, the inlet temperature of the indoor heat exchanger is higher than the outlet temperature. In the case that the temperature of the frequency converter power module is higher than the inlet temperature of the indoor heat exchanger, i.e. in the case that the frequency converter power module needs to be cooled, the control mode of the first flow regulating valve and the second flow regulating valve according to the temperature of the frequency converter power module is as follows:

[0082] First, the temperature of the frequency converter power module is less than the temperature threshold, which means that the temperature of the frequency converter power module is not too high. At this time, the first flow regulating valve is opened to a smaller opening degree and the second flow regulating valve is closed, so that the frequency converter power module can be cooled by the water flow with a temperature that is not too low, thereby reducing the case that the temperature of the frequency converter power module is too low, i.e. reducing the case that the frequency converter power module is damaged due to condensation.

[0083] Second, in the case that the temperature of the frequency converter power module rises to the temperature threshold, the first flow regulating valve is opened to a larger opening degree and the second flow regulating valve is closed, so as to appropriately increase the water flow flowing into the heat dissipation pipeline, i.e. to improve the heat exchange efficiency of the heat dissipation pipeline, thereby facilitating the cooling of the frequency converter power module.

[0084] Third, in the case that the temperature of the frequency converter power module is higher than the temperature threshold, it means that the frequency converter power module is prone to overheating and damage, and the frequency converter power module needs a larger amount of heat dissipation. At this time, the first flow regulating valve is closed and the second flow regulating valve is opened to a smaller opening degree, so that the frequency converter power module can be cooled by the low-temperature water flow flowing out of the indoor heat exchanger, thereby improving the heat dissipation efficiency of the frequency converter power module and reducing the case that the frequency converter power module is damaged due to overheating. In addition, the second flow regulating valve being opened to a smaller opening degree can also prevent the water flow in the heat dissipation pipeline from being too large, thereby reducing the case that the temperature of the heat dissipation pipeline is too low, i.e. reducing the case that the temperature of the frequency converter power module is too low, and further reducing the case that the frequency converter power module forms condensation.

[0085] In addition, in the case that the inverter power module needs to be cooled and the temperature of the inverter power module is high (i.e., the temperature of the inverter power module is greater than the temperature threshold), the inverter power module is cooled by the water flow from the indoor heat exchanger, and the water flow into the indoor heat exchanger is not branched. Thus, the cooling of the inverter power module can reduce the influence on the heat exchange efficiency of the indoor heat exchanger, so as to ensure the heating effect of the air conditioner.

[0086] Optionally, in the case that the air conditioner operates in the cooling mode, the controller controls the first flow regulating valve and the second flow regulating valve according to the temperature of the inverter power module, including: in the case that the temperature of the inverter power module is less than the temperature threshold, the controller controls the first flow regulating valve to be closed and controls the second flow regulating valve to be opened to the first opening degree. Alternatively, in the case that the temperature of the inverter power module is equal to the temperature threshold, the controller controls the first flow regulating valve to be closed and controls the second flow regulating valve to be opened to the second opening degree. Alternatively, in the case that the temperature of the inverter power module is greater than the temperature threshold, the controller controls the first flow regulating valve to be opened to the first opening degree and controls the second flow regulating valve to be closed. The first opening degree is less than the second opening degree.

[0087] During the cooling operation of the air conditioner, the outlet temperature of the indoor heat exchanger is higher than the inlet temperature. In the case that the temperature of the inverter power module is higher than the outlet temperature of the indoor heat exchanger, i.e., in the case that the inverter power module needs to be cooled, the control mode of the first flow regulating valve and the second flow regulating valve according to the temperature of the inverter power module is as follows:

[0088] First, the temperature of the inverter power module is less than the temperature threshold, which indicates that the temperature of the inverter power module is not too high. At this time, the first flow regulating valve is closed, and the second flow regulating valve is opened to a small opening degree, so that the inverter power module can be cooled by the water flow with a temperature that is not too low, thereby reducing the case that the temperature of the inverter power module is too low, i.e., reducing the case that the inverter power module forms condensation and is damaged.

[0089] Second, in the case that the temperature of the inverter power module increases to the temperature threshold, the first flow regulating valve is closed, and the second flow regulating valve is opened to a large opening degree, so as to appropriately increase the water flow into the cooling pipeline, i.e., to increase the heat exchange efficiency of the cooling pipeline, thereby facilitating the cooling of the inverter power module.

[0090] In addition, in the case that the inverter power module needs to be cooled and the temperature of the inverter power module is not too high (i.e., the temperature of the inverter power module is less than or equal to the temperature threshold), the inverter power module is cooled by the water flow from the indoor heat exchanger, and the water flow from the indoor heat exchanger does not need to be branched. Thus, the cooling of the inverter power module can reduce the influence on the heat exchange efficiency of the indoor heat exchanger, so as to ensure the refrigeration effect of the air conditioner.

[0091] Thirdly, in the case that the temperature of the inverter power module is higher than the temperature threshold, it indicates that the inverter power module is prone to overheating and damage, and the inverter power module needs to be cooled. At this time, the first flow regulating valve is opened to a small opening degree, and the second flow regulating valve is closed, so that the inverter power module is cooled by the low-temperature water flow from the indoor heat exchanger, thereby improving the cooling efficiency of the inverter power module and reducing the case of overheating and damage of the inverter power module. In addition, the first flow regulating valve is opened to a small opening degree, so that the water flow in the cooling pipeline is not too large, thereby reducing the case that the temperature of the cooling pipeline is too low, i.e., reducing the case that the temperature of the inverter power module is too low, and further reducing the case that the inverter power module forms condensation.

[0092] Optionally, the temperature threshold of the inverter power module is T, and 50℃≤T≤90℃. More specifically, T=55℃, 60℃, 65℃, 70℃, 75℃, 80℃ or 85℃.

[0093] Optionally, the first opening degree is P1, the second opening degree is P2, the opening degree of the fully opened flow regulating valve is P, and 0

[0094] More specifically, P1=1 / 4*P, and P2=1 / 2*P. Alternatively, P1=1 / 2*P, and P2=P.

[0095] In combination with Figure 4 As shown in FIG. 1, the disclosure provides another control method for an air conditioner, which comprises the following steps.

[0096] S401, the controller acquires the temperature of the inverter power module.

[0097] S402, in the case that the air conditioner operates in the heating mode, the controller acquires the inlet temperature of the indoor heat exchanger.

[0098] S403, the controller compares the temperature of the inverter power module with a temperature threshold in the case that the temperature of the inverter power module is greater than or equal to the inlet temperature of the indoor heat exchanger.

[0099] S441, the controller opens the first flow regulating valve to a first opening degree and controls the second flow regulating valve to be closed in the case that the temperature of the inverter power module is less than the temperature threshold. Alternatively,

[0100] S442, the controller opens the first flow regulating valve to the second opening degree and controls the second flow regulating valve to be closed in the case that the temperature of the inverter power module is equal to the temperature threshold.

[0101] S443, the controller controls the first flow regulating valve to be closed and opens the second flow regulating valve to the first opening degree in the case that the temperature of the inverter power module is greater than the temperature threshold.

[0102] S405, the controller acquires a first time length during which the first flow regulating valve remains closed.

[0103] S406, the controller adjusts the first flow regulating valve and the second flow regulating valve according to the current temperature of the inverter power module in the case that the first time length reaches a time threshold.

[0104] The first opening degree is less than the second opening degree.

[0105] The method for the air conditioner provided by the embodiment of the present disclosure can be used in the case that the temperature of the inverter power module is high during the heating operation of the air conditioner. The first flow regulating valve is closed, and the second flow regulating valve is opened to a small opening degree, so that the inverter power module can be cooled by the water with a low temperature flowing out of the indoor heat exchanger. However, the temperature of the inverter power module will gradually increase during the heating operation of the air conditioner, and the heat dissipation amount required by the inverter power module will also increase, so that the heat dissipation pipeline that maintains the current heat dissipation efficiency cannot effectively cool the inverter power module with a high temperature. Therefore, the temperature of the inverter power module is monitored after a certain time length, and the temperature change of the inverter power module is determined. The first flow valve and the second flow valve are adjusted according to the temperature change of the inverter power module, that is, the flow of the water flowing into the heat dissipation pipeline is adjusted. Thus, the inverter power module can be better cooled by the heat dissipation pipeline.

[0106] Optionally, the controller adjusts the first flow regulating valve and the second flow regulating valve according to the current temperature of the inverter power module in the case that the first time length reaches a time threshold, including: the controller controls the first flow regulating valve to remain closed and opens the second flow regulating valve to the second opening degree in the case that the current temperature of the inverter power module is greater than a temperature threshold.

[0107] During the heating operation of the air conditioner, if the temperature of the inverter power module is still higher than the temperature threshold after the water flowing out of the indoor heat exchanger is used to cool the inverter power module for a certain time length, the flow of the water flowing out of the indoor heat exchanger is appropriately increased when flowing into the heat dissipation pipeline. Thus, the heat exchange efficiency of the heat dissipation pipeline is improved, which is beneficial to better cooling of the inverter power module.

[0108] In conjunction with Figure 5 As shown in the embodiments of the present disclosure, another control method for an air conditioner is provided, comprising:

[0109] S501, the controller acquires the temperature of the frequency converter power module.

[0110] S502, in the case that the air conditioner operates in a cooling mode, the controller acquires the outlet temperature of the indoor heat exchanger.

[0111] S503, the controller compares the temperature of the frequency converter power module with a temperature threshold value in the case that the temperature of the frequency converter power module is greater than or equal to the outlet temperature of the indoor heat exchanger.

[0112] S541, the controller controls the first flow regulating valve to be closed and opens the second flow regulating valve to a first opening degree in the case that the temperature of the frequency converter power module is less than the temperature threshold value.

[0113] S542, the controller controls the first flow regulating valve to be closed and opens the second flow regulating valve to a second opening degree in the case that the temperature of the frequency converter power module is equal to the temperature threshold value.

[0114] S543, the controller opens the first flow regulating valve to the first opening degree and controls the second flow regulating valve to be closed in the case that the temperature of the frequency converter power module is greater than the temperature threshold value.

[0115] S505, the controller acquires a second time length during which the second flow regulating valve remains closed.

[0116] S506, the controller adjusts the first flow regulating valve and the second flow regulating valve according to the current temperature of the frequency converter power module in the case that the second time length reaches a time threshold value.

[0117] Wherein, the first opening degree is less than the second opening degree.

[0118] The method for the air conditioner provided by the embodiment of the present disclosure can be used to cool the frequency converter power module by opening the second flow regulating valve to a small opening degree and closing the second flow regulating valve when the temperature of the frequency converter power module is high during the cooling operation of the air conditioner. However, the temperature of the frequency converter power module will gradually increase during the cooling operation of the air conditioner, and the heat dissipation amount required by the frequency converter power module will also increase, so that the heat dissipation pipeline that maintains the current heat dissipation efficiency cannot effectively dissipate heat for the frequency converter power module with a high temperature. In this way, the temperature change of the frequency converter power module can be determined by monitoring the temperature of the frequency converter power module after a certain time interval during the heat dissipation of the frequency converter power module. According to the temperature change of the frequency converter power module, the first flow valve and the second flow valve are adjusted, that is, the flow of water flowing into the heat dissipation pipeline is adjusted. Thus, the heat dissipation pipeline can better dissipate heat for the frequency converter power module.

[0119] Optionally, the controller adjusts the first flow regulating valve and the second flow regulating valve according to the current temperature of the frequency converter power module when the second time length reaches the time length threshold, including: the controller opens the first flow regulating valve to the second opening degree and controls the second flow regulating valve to remain closed when the current temperature of the frequency converter power module is greater than the temperature threshold.

[0120] During the cooling operation of the air conditioner, the flow of water flowing into the heat dissipation pipeline from the indoor heat exchanger is appropriately increased after the water flowing into the heat dissipation pipeline from the indoor heat exchanger is used to dissipate heat for the frequency converter power module for a certain time length, and the temperature of the frequency converter power module is still higher than the temperature threshold. Thus, the heat exchange efficiency of the heat dissipation pipeline is improved, which is beneficial to better heat dissipation of the frequency converter power module.

[0121] In combination with Figure 6 As shown in the figure, the embodiment of the present disclosure provides a control device 600 for an air conditioner, which includes a processor 100 and a memory 101. Optionally, the device can also include a communication interface 102 and a bus 103. The processor 100, the communication interface 102, and the memory 101 can communicate with each other through the bus 103. The communication interface 102 can be used for information transmission. The processor 100 can call the logic instructions in the memory 101 to execute the control method for the air conditioner of the above-mentioned embodiments.

[0122] In addition, the logic instructions in the memory 101 described above can be implemented in the form of a software functional unit and sold or used as an independent product when used, which can be stored in a computer readable storage medium.

[0123] The memory 101 can be used to store software programs, computer executable programs, such as program instructions / modules corresponding to the method in the embodiments of the present disclosure. The processor 100 executes the function application and data processing by running the program instructions / modules stored in the memory 101, that is, implements the control method for the air conditioner in the above embodiments.

[0124] The memory 101 can include a program storage area and a data storage area. The program storage area can store an operating system and application programs required by at least one function; the data storage area can store data created according to the use of the terminal device, etc. In addition, the memory 101 can include a high-speed random access memory, and can also include a non-volatile memory.

[0125] In combination Figure 1 As shown in the figure, the embodiments of the present disclosure provide an air conditioner, which includes an outdoor unit 1, an indoor unit 2, a heat exchange device 3, a frequency converter power module 4 and a heat dissipation pipeline 5. The outdoor unit 1 and the indoor unit 2 are connected through the heat exchange device 3, and the outdoor unit 1 and the indoor unit 2 exchange heat through the heat exchange device 3. The heat dissipation pipeline 5 passes through the frequency converter power module 4, and is used for dissipating heat of the frequency converter power module 4.

[0126] Optionally, the outdoor unit 1 includes a compressor 11, a four-way valve 12, an outdoor heat exchanger 13, an electronic expansion valve 14 and a gas-liquid separator 15.

[0127] Optionally, the indoor unit 2 includes a circulating water pipeline 21, an indoor heat exchanger 22 and a circulating water pump 23. The indoor heat exchanger 22 and the circulating water pump 23 are connected in series in the circulating water pipeline 21, and the circulating water pump 23 can make the water in the circulating water pipeline 21 flow from a water outlet 31 of the heat exchange device 3 to a water return port 32 of the heat exchange device 3.

[0128] Optionally, a first water inlet 51 of the heat dissipation pipeline 5 is connected to the circulating water pipeline 21 between the water outlet 31 of the heat exchange device 3 and an inlet of the indoor heat exchanger 22, a second water inlet 52 of the heat dissipation pipeline 5 is connected to the circulating water pipeline 21 between an outlet of the indoor heat exchanger 22 and the water return port 32 of the heat exchange device 3, and a water outlet 55 of the heat dissipation pipeline 5 is connected to the water return port 32 of the heat exchange device 3.

[0129] Optionally, the heat dissipation pipeline 5 is in contact with the frequency converter power module 4, or the heat dissipation pipeline 5 is separated from the frequency converter power module 4.

[0130] The heat dissipation pipeline directly contacts the frequency converter power module, which can improve the heat dissipation efficiency of the heat dissipation pipeline on the frequency converter power module.

[0131] The first water inlet 51 of the heat dissipation pipeline 5 is provided with a first flow regulating valve 53, and the second water inlet 52 of the heat dissipation pipeline 5 is provided with a second flow regulating valve 54. The first flow regulating valve 53 and the second flow regulating valve 54 are controlled to make the water in the circulating water pipeline 21 flow into the heat dissipation pipeline 5 to dissipate heat for the frequency converter power module 4.

[0132] Optionally, the heat exchange device 3 is a plate heat exchanger.

[0133] Optionally, the indoor heat exchanger 22 is a water heat exchanger for air conditioning and a water heat exchanger for floor heating.

[0134] Optionally, in combination with Figure 7 As shown, the air conditioner further comprises a control device 600 for the air conditioner, a first temperature sensor 7, a second temperature sensor 8, and a third temperature sensor 9.

[0135] The first temperature sensor 7 is arranged at the inlet of the indoor heat exchanger 22 to detect the inlet temperature of the indoor heat exchanger 22. The second temperature sensor 8 is arranged at the outlet of the indoor heat exchanger 22 to detect the outlet temperature of the indoor heat exchanger 22. The third temperature sensor 9 is arranged at the frequency converter power module 4 to detect the temperature of the frequency converter power module 4.

[0136] The control device 600 for the air conditioner is mounted on the air conditioner body. The mounting relationship described herein is not limited to being placed inside the air conditioner, but also includes mounting connection with other components of the air conditioner, including but not limited to physical connection, electrical connection, or signal transmission connection, etc. Those skilled in the art can understand that the control device 600 for the air conditioner can be adapted to a feasible air conditioner body, and thus realize other feasible embodiments.

[0137] The control device 600 for the air conditioner is connected with the frequency converter power module 4, the first temperature sensor 7, the second temperature sensor 8, the third temperature sensor 9, the compressor 11, the four-way valve 12, the electronic expansion valve 14, the circulating water pump 23, the first flow regulating valve 53, and the second flow regulating valve 54, respectively.

[0138] The control device 600 for the air conditioner controls the frequency converter power module 4, the compressor 11, and the circulating water pump 23 to operate, respectively.

[0139] The control device 600 for the air conditioner obtains the inlet temperature of the indoor heat exchanger 22 from the first temperature sensor 7, the outlet temperature of the indoor heat exchanger 22 from the second temperature sensor 8, and the temperature of the frequency converter power module 4 from the third temperature sensor 9, respectively.

[0140] The control device 600 for the air conditioner can change the flow direction of the refrigerant in the refrigerant pipeline of the outdoor unit 1 by controlling the four-way valve 12, so as to realize the switching between the cooling mode and the heating mode during the operation of the air conditioner. The control device 600 for the air conditioner can adjust the flow of the refrigerant in the refrigerant pipeline of the outdoor unit 1 by controlling the electronic expansion valve 14.

[0141] The control device 600 for the air conditioner can adjust the flow of the water flowing from the circulating water pipeline 21 into the heat radiating pipeline 5 by controlling the first flow adjusting valve 53 and the second flow adjusting valve 54.

[0142] The present disclosure provides a storage medium, which stores computer executable instructions configured to execute the above-mentioned control method for the air conditioner.

[0143] The above-mentioned storage medium can be a transitory computer readable storage medium or a non-transitory computer readable storage medium.

[0144] The technical solution of the present disclosure can be embodied in the form of a software product. The computer software product is stored in a storage medium and includes one or more instructions to make a computer device (which can be a personal computer, a server, or a network device, etc.) execute all or part of the steps of the method described in the present disclosure. The above-mentioned storage medium can be a non-transitory storage medium, including a U disk, a mobile hard disk, a read-only memory (ROM), a random access memory (RAM), a magnetic disk or an optical disk, and various media that can store program codes, or a transitory storage medium.

[0145] The foregoing description and accompanying drawings fully illustrate embodiments of this disclosure to enable those skilled in the art to practice them. Other embodiments may include structural, logical, electrical, procedural, and other changes. The embodiments represent only possible variations. Individual components and functions are optional unless explicitly required, and the order of operation may vary. Parts and features of some embodiments may be included in or replace parts and features of other embodiments. Moreover, the terminology used in this application is for describing embodiments only and is not intended to limit the claims. As used in the description of embodiments and claims, the singular forms “a,” “an,” and “the” are intended to equally include the plural forms unless the context clearly indicates otherwise. Similarly, the term “and / or” as used in this application means including one or more of the associated listed items and all possible combinations thereof. Additionally, when used in this application, the term "comprise" and its variations "comprises" and / or "comprising" refer to the presence of stated features, integrals, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components, and / or groups thereof. Without further limitations, an element defined by the phrase "comprises a..." does not exclude the presence of other identical elements in the process, method, or apparatus that includes said element. In this document, each embodiment may focus on the differences from other embodiments, and similar or identical parts between embodiments can be referred to mutually. For methods, products, etc., disclosed in the embodiments, if they correspond to the method section disclosed in the embodiments, the relevant parts can be referred to the description of the method section.

[0146] Those skilled in the art will recognize that the units and algorithm steps of the various examples described in conjunction with the embodiments disclosed herein can be implemented in electronic hardware, or a combination of computer software and electronic hardware. Whether these functions are implemented in hardware or software depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of the embodiments of this disclosure. Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0147] In the embodiments disclosed herein, the disclosed methods, products (including but not limited to apparatuses, devices, etc.), can be implemented in other manners. For example, the described apparatus embodiments can be implemented only in a form of a logical function, and can be implemented by using a manner such as software (for example, application program) or the like. In some embodiments, a plurality of units or components can be combined or integrated into another system, or some features can be ignored or not executed. In addition, the displayed or discussed coupling or direct coupling or indirect coupling between different units, or the coupling or direct coupling or indirect coupling between the displayed or discussed communication connections can be in a form of electrical, mechanical or other forms.

[0148] The flowcharts and block diagrams in the drawings show the possible implementation architectures, functions and operations of the system, method and computer program product according to the embodiments of the present disclosure. In this regard, each block in the flowcharts or block diagrams can represent a module, a program segment or a part of code containing one or more executable instructions for implementing a specified logical function. In some alternative implementations, the functions noted in the blocks can occur in an order different from that noted in the drawings. For example, two consecutive blocks can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. In the descriptions corresponding to the flowcharts and block diagrams in the drawings, the operations or steps corresponding to different blocks can also occur in an order different from that disclosed in the descriptions, and sometimes there is no specific order between different operations or steps. For example, two consecutive operations or steps can actually be executed substantially in parallel, and sometimes they can be executed in reverse order, depending on the functions involved. Each block in the block diagrams and / or flowcharts, and the combination of blocks in the block diagrams and / or flowcharts, can be implemented by a dedicated hardware-based system that performs the specified functions or actions, or can be implemented by a combination of dedicated hardware and computer instructions.

Claims

1. A control method for an air conditioner, the air conditioner comprising an outdoor unit, an indoor unit, a heat exchange device, and a variable frequency power module; the indoor unit comprising a circulating water circuit, an indoor heat exchanger, and a circulating water pump, and the indoor heat exchanger and the circulating water pump being connected in series in the circulating water circuit; characterized in that, The air conditioner further comprises a heat dissipation pipeline passing through the frequency converter power module, a first water inlet of the heat dissipation pipeline is connected to the circulating water pipeline between the water outlet of the heat exchange device and the inlet of the indoor heat exchanger, a second water inlet of the heat dissipation pipeline is connected to the circulating water pipeline between the outlet of the indoor heat exchanger and the water return port of the heat exchange device, and a water outlet of the heat dissipation pipeline is connected to the water return port of the heat exchange device; the first water inlet of the heat dissipation pipeline is provided with a first flow regulating valve, and the second water inlet of the heat dissipation pipeline is provided with a second flow regulating valve; the method comprises: obtaining the temperature of the frequency converter power module; obtaining the temperature of the indoor heat exchanger; in the case that the temperature of the frequency converter power module is greater than or equal to the temperature of the indoor heat exchanger, controlling the first flow regulating valve and the second flow regulating valve to make the water in the circulating water pipeline flow into the heat dissipation pipeline to dissipate heat for the frequency converter power module; controlling the first flow regulating valve and the second flow regulating valve comprises: controlling the first flow regulating valve and the second flow regulating valve according to the temperature of the frequency converter power module; in the case that the air conditioner operates in the heating mode, controlling the first flow regulating valve and the second flow regulating valve according to the temperature of the frequency converter power module comprises: in the case that the temperature of the frequency converter power module is less than a temperature threshold, opening the first flow regulating valve to a first opening degree and controlling the second flow regulating valve to be closed; or, in the case that the temperature of the frequency converter power module is equal to the temperature threshold, opening the first flow regulating valve to a second opening degree and controlling the second flow regulating valve to be closed; or, in the case that the temperature of the frequency converter power module is greater than the temperature threshold, controlling the first flow regulating valve to be closed and opening the second flow regulating valve to the first opening degree; wherein the first opening degree is less than the second opening degree.

2. The method of claim 1, wherein, The temperature of the indoor heat exchanger comprises the inlet temperature of the indoor heat exchanger or the outlet temperature of the indoor heat exchanger.

3. The method of claim 2, wherein, obtaining the temperature of the indoor heat exchanger comprises: in the case that the air conditioner operates in the heating mode, obtaining the inlet temperature of the indoor heat exchanger; or, in the case that the air conditioner operates in the cooling mode, obtaining the outlet temperature of the indoor heat exchanger.

4. The method of claim 1, wherein, in the case that the air conditioner operates in the cooling mode, controlling the first flow regulating valve and the second flow regulating valve according to the temperature of the frequency converter power module comprises: in the case that the temperature of the frequency converter power module is less than a temperature threshold, controlling the first flow regulating valve to be closed and opening the second flow regulating valve to a first opening degree; or, in the case that the temperature of the frequency converter power module is equal to the temperature threshold, controlling the first flow regulating valve to be closed and opening the second flow regulating valve to a second opening degree; or, in the case that the temperature of the frequency converter power module is greater than the temperature threshold, opening the first flow regulating valve to the first opening degree and controlling the second flow regulating valve to be closed; wherein the first opening degree is less than the second opening degree.

5. A control device for an air conditioner comprising a processor and a memory having stored program instructions, characterized in that, The processor is configured to execute, when running the program instructions, the control method for the air conditioner as claimed in any one of claims 1 to 4.

6. An air conditioner comprising an outdoor unit, an indoor unit, a heat exchange device, and a variable frequency power module; the indoor unit comprises a circulating water circuit, an indoor heat exchanger, and a circulating water pump, and the indoor heat exchanger and the circulating water pump are connected in series in the circulating water circuit; characterized in that, The air conditioner further comprises: The heat dissipation pipeline passes through the frequency converter power module, a first water inlet of the heat dissipation pipeline is connected to the circulating water pipeline between the drain port of the heat exchange device and the inlet of the indoor heat exchanger, a second water inlet of the heat dissipation pipeline is connected to the circulating water pipeline between the outlet of the indoor heat exchanger and the return water port of the heat exchange device, and the water outlet of the heat dissipation pipeline is connected to the return water port of the heat exchange device; the first water inlet of the heat dissipation pipeline is provided with a first flow regulating valve, and the second water inlet of the heat dissipation pipeline is provided with a second flow regulating valve; The first flow regulating valve and the second flow regulating valve are controlled to make the water in the circulating water pipeline flow into the heat dissipation pipeline to dissipate heat for the frequency converter power module; The control of the first flow regulating valve and the second flow regulating valve includes controlling the first flow regulating valve and the second flow regulating valve according to the temperature of the frequency converter power module; In the case that the air conditioner operates in the heating mode, the control of the first flow regulating valve and the second flow regulating valve according to the temperature of the frequency converter power module includes: In the case that the temperature of the frequency converter power module is less than a temperature threshold, the first flow regulating valve is opened to a first opening degree, and the second flow regulating valve is controlled to be closed; or In the case that the temperature of the frequency converter power module is equal to the temperature threshold, the first flow regulating valve is opened to a second opening degree, and the second flow regulating valve is controlled to be closed; or In the case that the temperature of the frequency converter power module is greater than the temperature threshold, the first flow regulating valve is controlled to be closed, and the second flow regulating valve is opened to the first opening degree; The first opening degree is less than the second opening degree.

7. The air conditioner of claim 6, wherein The air conditioner further includes: A first temperature sensor for detecting the inlet temperature of the indoor heat exchanger; A second temperature sensor for detecting the outlet temperature of the indoor heat exchanger; A third temperature sensor for detecting the temperature of the frequency converter power module; and The control device for the air conditioner according to claim 5.

8. A storage medium storing program instructions, characterized in that, The program instructions, when executed, perform the control method for the air conditioner according to any one of claims 1 to 5.

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