Cooling device of compressor driver and air conditioner

Abstract

The invention discloses a cooling device of a compressor driver and an air conditioner. The cooling device is characterized in that the output end of a refrigerant processing module is connected with the input end of a compressor through a first pipeline; the compressor is used for sucking a refrigerant in the first pipeline between the refrigerant processing module and the compressor and compressing the refrigerant into gas; the heat exchanger comprises a water inlet and a water outlet, and the cooling tower is connected with the water inlet and the water outlet of the heat exchanger through a second pipeline and used for providing cooling water for the heat exchanger and the compressor driving assembly. The heat exchanger is used for cooling gas in the first pipeline; a water inlet of the heat exchanger is connected with an inlet of the compressor driving assembly through a second pipeline; a water outlet of the heat exchanger is connected with an outlet of the compressor driving assembly through a second pipeline; the compressor driving assembly is used for driving a compressor to operate. The compressor driving assembly can work at the optimal temperature, the pressure drop and loss of the device can be reduced, and the performance of the device is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning, and in particular to a cooling device for a compressor driver and an air conditioner. Background Art

[0002] With the advancement and development of electronic technology, the trend of frequency conversion in the air-conditioning industry has become increasingly obvious. The problems of inverter failure and reliability caused by poor heat dissipation of inverters dedicated to commercial air conditioners have become increasingly important.

[0003] Air-conditioning dedicated inverters usually include a compressor drive assembly. The compressor drive assembly uses the refrigerant in the pipeline to dissipate heat, which will cause the compressor drive assembly to fail to operate at the optimal temperature and may cause large pressure drops and losses in the device, affecting the overall energy efficiency of the device. Summary of the Invention

[0004] The present invention provides a cooling device for a compressor driver and an air conditioner, which can enable a compressor drive component to operate at an optimal temperature, reduce pressure drop and loss of the device, and improve device performance.

[0005] According to one aspect of the present invention, there is provided a cooling device for a compressor driver, comprising:

[0006] A compressor, a cooling tower, a heat exchanger, a refrigerant processing module, and a compressor drive assembly. The output end of the compressor is connected to the input end of the heat exchanger via a first pipeline. The output end of the heat exchanger is connected to the input end of the refrigerant processing module via a first pipeline. The output end of the refrigerant processing module is connected to the input end of the compressor via a first pipeline. The compressor is used to absorb the refrigerant in the first pipeline between the refrigerant processing module and the compressor and compress it into gas. The refrigerant processing module is used to process the refrigerant output by the heat exchanger.

[0007] The heat exchanger includes a water inlet and a water outlet. The cooling tower is connected to the water inlet and the water outlet of the heat exchanger through a second pipeline. The cooling tower is used to provide cooling water to the heat exchanger and the compressor drive assembly. The heat exchanger is used to cool the gas in the first pipeline.

[0008] The water inlet of the heat exchanger is connected to the inlet of the compressor drive assembly through the second pipeline; the water outlet of the heat exchanger is connected to the outlet of the compressor drive assembly through the second pipeline; the compressor drive assembly is used to drive the compressor to operate.

[0009] Based on the above embodiment, optionally, the compressor drive assembly includes a controller and a cold plate, the controller is arranged on the cold plate, and the cold plate is used to dissipate heat for the controller;

[0010] The water inlet of the heat exchanger is connected to the inlet of the cold plate through the second pipeline; the water outlet of the heat exchanger is connected to the outlet of the cold plate through the second pipeline.

[0011] Based on the above embodiment, optionally, the second pipeline is a cooling water pipeline; the cooling water pipeline includes a first cooling water pipeline, a second cooling water pipeline, a third cooling water pipeline and a fourth cooling water pipeline;

[0012] The cooling tower is connected to the water inlet of the heat exchanger through the first cooling water pipeline, and the cooling tower is connected to the water outlet of the heat exchanger through the second cooling water pipeline; the water inlet of the heat exchanger is connected to the inlet of the cold plate through the third cooling water pipeline; the water outlet of the heat exchanger is connected to the outlet of the cold plate through the fourth cooling water pipeline.

[0013] Based on the above embodiment, optionally, the temperature of the cooling water is 30°C-40°C.

[0014] Based on the above embodiment, optionally, the first pipeline includes a copper pipe, and / or the second pipeline includes a galvanized steel pipe.

[0015] Based on the above embodiment, optionally, the refrigerant processing module includes: a drying filter, wherein the output end of the heat exchanger is connected to the input end of the drying filter via a first pipeline;

[0016] Filter driers are used to dry and adsorb impurities from cooled gases and liquids in heat exchangers.

[0017] Based on the above embodiment, optionally, the refrigerant processing module further includes: an electronic expansion valve, wherein the output end of the drying filter is connected to the input end of the electronic expansion valve via a first pipeline;

[0018] The electronic expansion valve is used to convert gas and liquid at a first pressure in the filter drier into gas and liquid at a second pressure, wherein the first pressure is greater than the second pressure.

[0019] Based on the above embodiment, optionally, the refrigerant processing module further includes: an evaporator, the output end of the electronic expansion valve is connected to the input end of the evaporator through a first pipeline, and the output end of the evaporator is connected to the input end of the compressor through the first pipeline;

[0020] The evaporator is used to process the gas and liquid at the second pressure into gas.

[0021] Based on the above embodiment, optionally, the heat exchanger is a condenser.

[0022] According to another aspect of the present invention, an air conditioner is provided, comprising a cooling device of the compressor driver according to any embodiment of the present invention.

[0023] In the technical solution of the embodiment of the present invention, the output end of the compressor is connected to the input end of the heat exchanger through a first pipeline, the output end of the heat exchanger is connected to the input end of the refrigerant processing module through a first pipeline, and the output end of the refrigerant processing module is connected to the input end of the compressor through a first pipeline; the compressor is used to suck the refrigerant in the first pipeline between the refrigerant processing module and the compressor and compress it into gas; the refrigerant processing module is used to process the refrigerant output by the heat exchanger; the heat exchanger includes a water inlet and a water outlet, and a cooling tower is connected to the water inlet and water outlet of the heat exchanger through a second pipeline. The cooling tower is used to provide cooling water to the heat exchanger and the compressor drive assembly; The heat exchanger is used to cool the gas in the first pipeline. The water inlet of the heat exchanger is connected to the inlet of the compressor drive assembly through a second pipeline. The water outlet of the heat exchanger is connected to the outlet of the compressor drive assembly through the second pipeline. The compressor drive assembly is used to drive the compressor. In this embodiment of the present invention, the water inlet of the heat exchanger is connected to the inlet of the compressor drive assembly through the second pipeline. Cooling water also flows into the inlet of the compressor drive assembly through the second pipeline and flows out through the outlet of the compressor drive assembly. The cooling water flowing out of the water outlet of the heat exchanger and the cooling water flowing out of the outlet of the compressor drive assembly flow into the cooling tower together. In this embodiment of the present invention, the cooling water has a low temperature. After passing through the inlet and outlet of the compressor drive assembly, the cooling water can dissipate heat from the compressor drive assembly, allowing the compressor drive assembly to operate at an optimal operating temperature. Furthermore, since the first pipeline does not need to be connected to the compressor drive assembly, refrigerant leaks can be avoided, which can reduce product quality control. It also avoids increased refrigerant resistance, which can lead to increased pressure drop and affect the energy efficiency of the device. This can reduce pressure drop and losses in the device, thereby improving device performance.

[0024] It should be understood that the content described in this section is not intended to identify the key or important features of the embodiments of the present invention, nor is it intended to limit the scope of the present invention. Other features of the present invention will become readily understood through the following description. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 It is a structural schematic diagram of a cooling device for a compressor driver provided by an embodiment of the present invention.

[0027] Figure 2 It is a structural schematic diagram of another cooling device for a compressor driver provided by an embodiment of the present invention. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0029] It should be noted that the terms "first," "second," and the like in the present invention are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including," "having," and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to these processes, methods, products, or apparatuses.

[0030] As described in the background technology: A dedicated inverter for air conditioners usually includes a compressor drive assembly. The compressor drive assembly uses a low-temperature, low-pressure refrigerant to dissipate heat from the inverter, but has the following disadvantages: when the refrigerant flows into the compressor drive assembly, due to the small diameter of the refrigerant pipeline, when the refrigerant flows into the inlet of the compressor drive assembly through the refrigerant pipeline, the resistance of the refrigerant will increase, resulting in an increase in pressure drop, affecting the energy efficiency of the device. In addition, the refrigerant inflow temperature is usually around 50°C, which is close to the upper temperature limit in the compressor drive assembly, affecting the life of the compressor drive assembly. The refrigerant pipeline needs to be welded to the structure in the compressor drive assembly, and there are two welding points. Therefore, there will be two poorly manufactured refrigerant leakage points in the device, which is not conducive to the quality control of the device.

[0031] In order to solve the above problems, an embodiment of the present invention provides a cooling device for a compressor driver. Figure 1 This is a schematic diagram of the structure of a cooling device for a compressor driver provided by an embodiment of the present invention, with reference to Figure 1 , the cooling device of the compressor driver includes:

[0032] The compressor 10, the cooling tower 40, the heat exchanger 20, the refrigerant treatment module 50 and the compressor drive assembly 30, the output end of the compressor 10 is connected to the input end of the heat exchanger 20 through the first pipeline 01, the output end of the heat exchanger 20 is connected to the input end of the refrigerant treatment module 50 through the first pipeline 01, and the output end of the refrigerant treatment module 50 is connected to the input end of the compressor 10 through the first pipeline 01; the compressor 10 is used to inhale the refrigerant in the first pipeline 01 between the refrigerant treatment module 50 and the compressor 10 and compress it into gas; the refrigerant treatment module 50 is used to The heat exchanger 20 includes a water inlet 21 and a water outlet 22. The cooling tower 40 is connected to the water inlet 21 and the water outlet 22 of the heat exchanger through the second pipeline 02. The cooling tower 40 is used to provide cooling water to the heat exchanger 20 and the compressor drive assembly 30. The heat exchanger 20 is used to cool the gas in the first pipeline 01. The water inlet 21 of the heat exchanger 20 is connected to the inlet of the compressor drive assembly 30 through the second pipeline 02. The water outlet 22 of the heat exchanger 20 is connected to the outlet of the compressor drive assembly 30 through the second pipeline 02. The compressor drive assembly 30 is used to drive the compressor 10 to operate.

[0033] Among them, the first pipeline is a refrigerant pipeline, that is, a pipeline through which liquid refrigerant or gas refrigerant flows. The first pipeline 01 includes an intake pipeline, which is connected to the input end of the compressor 10. The refrigerant exists in the intake pipeline, and the compressor 10 compresses the refrigerant in the intake pipeline into a high-temperature and high-pressure gas refrigerant. The high-temperature and high-pressure gas refrigerant is heat-exchanged with the cooling water in the heat exchanger 20, so that the high-temperature and high-pressure gas refrigerant is converted into a low-temperature and high-pressure gas refrigerant and a liquid refrigerant. The refrigerant processing module 50 is used to dry and reduce the pressure of the refrigerant output by the heat exchanger 20; after the low-temperature and high-pressure gas refrigerant and the liquid refrigerant are processed by the refrigerant processing module 50, the low-temperature and high-pressure gas refrigerant and the liquid refrigerant can be converted into a low-temperature and low-pressure gas refrigerant, and then enter the intake pipeline again to form a new round of circulation.

[0034] The second pipeline is the cooling water pipeline, i.e., the pipeline through which cooling water flows. The water inlet 21 of the heat exchanger 20 is connected to the inlet of the compressor drive assembly 30 via the second pipeline 02. This allows the cooling water in the cooling tower 40 to flow into the heat exchanger 20 and into the inlet of the compressor drive assembly 30 through the second pipeline 02. The cooling water then flows out through the outlet of the compressor drive assembly 30. Since the water outlet 22 of the heat exchanger 20 is connected to the outlet of the compressor drive assembly 30 via the second pipeline 02, the cooling water flowing out of the outlet of the compressor drive assembly 30 and the cooling water at the water outlet 22 of the heat exchanger 20 can flow back to the cooling tower 40 at the same time. The cooling water is relatively low in temperature, generally between 30°C and 40°C. After passing through the inlet and outlet of the compressor drive assembly 30, the cooling water can dissipate heat from the compressor drive assembly 30, allowing the compressor drive assembly 30 to operate at its optimal operating temperature. Furthermore, the refrigerant pipeline does not need to be connected to the compressor drive assembly 30, which can avoid the existence of refrigerant leakage points and reduce product quality control; and avoid the increase of refrigerant resistance, resulting in increased pressure drop and affecting the energy efficiency of the device.

[0035] In the technical solution of the embodiment of the present invention, the output end of the compressor 10 is connected to the input end of the heat exchanger 20 through the first pipeline 01, the output end of the heat exchanger 20 is connected to the input end of the refrigerant treatment module 50 through the first pipeline 01, and the output end of the refrigerant treatment module 50 is connected to the input end of the compressor 10 through the first pipeline 01; the compressor 10 is used to inhale the refrigerant in the first pipeline 01 between the refrigerant treatment module 50 and the compressor 10 and compress it into gas; the refrigerant treatment module 50 is used to process the refrigerant output by the heat exchanger 20; the heat exchanger 20 includes a water inlet 21 and a water outlet 22, and the cooling tower 40 is connected to the water inlet 21 and the water outlet 22 of the heat exchanger through the second pipeline 02. The cooling tower 40 is used to supply the heat exchanger 20 and the compressor drive assembly 30 with water. Provide cooling water; the heat exchanger 20 is used to cool the gas in the first pipeline 01; the water inlet 21 of the heat exchanger 20 is connected to the inlet of the compressor drive assembly 30 through the second pipeline 02; the water outlet 22 of the heat exchanger 20 is connected to the outlet of the compressor drive assembly 30 through the second pipeline 02; the compressor drive assembly 30 is used to drive the compressor 10 to operate; the water inlet 21 of the heat exchanger 20 is connected to the inlet of the compressor drive assembly 30 through the second pipeline 02; the cooling water also flows into the inlet of the compressor drive assembly 30 through the second pipeline 02, and flows out through the outlet of the compressor drive assembly 30. The cooling water flowing out of the water outlet 22 of the heat exchanger 20 and the cooling water flowing out of the outlet of the compressor drive assembly 30 flow into the cooling tower 40 together. The temperature of the cooling water in this embodiment of the present invention is relatively low. After passing through the inlet and outlet of the compressor drive assembly 30, the cooling water can dissipate heat from the compressor drive assembly 30, so that the compressor drive assembly 30 operates at an optimal operating temperature. Moreover, the first pipeline does not need to be connected to the compressor drive assembly 30, which can avoid the existence of refrigerant leakage points and reduce product quality control; and avoid the increase of refrigerant resistance, resulting in increased pressure drop and affecting the energy efficiency of the device; thereby reducing the pressure drop and loss of the device and improving the performance of the device.

[0036] Based on the above embodiment, optionally, refer to Figure 1 The compressor drive assembly 30 includes a controller and a cold plate. The controller is arranged on the cold plate, and the cold plate is used to dissipate heat for the controller; the water inlet of the heat exchanger 20 is connected to the inlet of the cold plate through the second pipeline 02; the water outlet of the heat exchanger 20 is connected to the outlet of the cold plate through the second pipeline 02.

[0037] The controller includes a chip and a control circuit that can be used to drive the compressor to operate. The cold plate is used to dissipate heat from the chip in the controller to ensure that the chip operates at a normal operating temperature. The water inlet of the heat exchanger 20 is connected to the inlet of the cold plate through the second pipe 02. Cooling water also flows into the inlet of the cold plate through the second pipe 02 and flows out through the outlet of the cold plate. The water outlet of the heat exchanger 20 is connected to the outlet of the cold plate through the second pipe 02. The cooling water flowing out of the cold plate outlet will flow back to the cooling tower 40 with the cooling water at the water outlet of the heat exchanger 20, so that the cooling water cools the cold plate. The temperature of the cooled cold plate can make the chip operate within the optimal temperature range, thereby improving the performance of the device. The cooling of the cold plate does not involve the refrigerant system, which can eliminate the hidden dangers of equipment failure caused by refrigerant leakage related to the cold plate.

[0038] Based on the above embodiment, optionally, refer to Figure 1 The second pipeline 02 is a cooling water pipeline; the cooling water pipeline includes a first cooling water pipeline 021, a second cooling water pipeline 022, a third cooling water pipeline 023 and a fourth cooling water pipeline 024; the cooling tower 40 is connected to the water inlet 21 of the heat exchanger 20 through the first cooling water pipeline 021, and the cooling tower 40 is connected to the water outlet 22 of the heat exchanger 20 through the second cooling water pipeline 022; the water inlet 21 of the heat exchanger 20 is connected to the inlet of the cold plate through the third cooling water pipeline 023; the water outlet of the heat exchanger 20 is connected to the outlet of the cold plate through the fourth cooling water pipeline 024.

[0039] Among them, the first cooling water pipeline 021, the second cooling water pipeline 022, the third cooling water pipeline 023 and the fourth cooling water pipeline 024 are all independent pipelines without overlap. When the cooling tower 40 provides cooling water to the heat exchanger 20, the cooling water can flow into the water inlet 21 of the heat exchanger 20 through the first cooling water pipeline 021, and at the same time flow into the third cooling water pipeline 023 to the inlet of the cold plate. After the cooling water performs heat exchange on the cold plate, the heat-exchanged cooling water flows through the outlet of the cold plate into the fourth cooling water pipeline 024 to the water outlet 22 of the heat exchanger 20. The cooling water that has undergone heat exchange in the heat exchanger 20 is then returned to the cooling tower 40 through the second cooling water pipeline 022 together with the cooling water in the fourth cooling water pipeline 024. In this way, the cooling water can cool the cold plate. The temperature of the cooled cold plate can make the chip operate within the optimal temperature range, thereby improving the performance of the device.

[0040] Based on the above embodiment, optionally, the temperature of the cooling water is 30°C-40°C.

[0041] Among them, compared with the refrigerant in the existing technology to cool the cold plate, the temperature of the cold plate is reduced to about 50°C, which is close to the upper limit temperature of the chip in the compressor drive assembly 30; the temperature of the cooling water is 30°C-40°C, and the optimal operating temperature of the chip in the compressor drive assembly 30 is 20°C-60°C, which can make the chip work within the optimal temperature range, thereby improving the performance of the device.

[0042] Based on the above embodiment, optionally, the first pipeline includes a copper pipe, and / or the second pipeline includes a galvanized steel pipe.

[0043] Among them, the first pipeline includes a copper pipe, and / or the second pipeline includes a galvanized steel pipe. The embodiment of the present invention dissipates heat to the compressor drive assembly through the second pipeline, which can reduce the use of the first pipeline in the device, save costs, save copper usage, and contribute to green production.

[0044] Based on the above embodiment, optionally, Figure 2 This is a schematic diagram of the structure of another cooling device for a compressor driver provided by an embodiment of the present invention, with reference to Figure 1 and Figure 2 The refrigerant processing module 50 further includes: a drying filter 51, the output end of the heat exchanger 20 is connected to the input end of the drying filter 51 through a first pipeline; the drying filter 51 is used to dry the cooled gas and liquid in the heat exchanger 20 and adsorb impurities.

[0045] The high-temperature, high-pressure gas refrigerant is heat-exchanged with the cooling water in heat exchanger 20, converting it into low-temperature, high-pressure gas refrigerant and liquid refrigerant. The low-temperature, high-pressure gas refrigerant and liquid refrigerant are filtered for impurities and moisture by filter drier 51, ensuring the quality of the refrigerant that subsequently enters the electronic expansion valve 52 and providing a reliable operating environment for the electronic expansion valve 52.

[0046] Based on the above embodiment, optionally, refer to Figure 1 and Figure 2 The refrigerant processing module 50 also includes: an electronic expansion valve 52, the output end of the drying filter 51 is connected to the input end of the electronic expansion valve 52 through a first pipeline; the electronic expansion valve 52 is used to convert the gas and liquid of the first pressure in the drying filter 51 into the gas and liquid of the second pressure, wherein the first pressure is greater than the second pressure.

[0047] Among them, the electronic expansion valve 52 can convert low-temperature and high-pressure gas refrigerant and liquid refrigerant into low-temperature and low-pressure gas refrigerant and liquid refrigerant. The electronic expansion valve 52 can accurately reduce the pressure of the refrigerant by controlling and adjusting its opening.

[0048] Based on the above embodiment, optionally, refer to Figure 1 and Figure 2 The refrigerant processing module 50 also includes: an evaporator 53, the output end of the electronic expansion valve 52 is connected to the input end of the evaporator 53 through a first pipeline, and the output end of the evaporator 53 is connected to the input end of the compressor 10 through a first pipeline; the evaporator 53 is used to process the gas and liquid at the second pressure into gas.

[0049] The evaporator 53 can convert low-temperature, low-pressure gas refrigerant and liquid refrigerant into low-temperature, low-pressure gas refrigerant, which is then transferred to the compressor 10 for a new cycle. The evaporator 53 also includes a chilled water inlet 531 and a chilled water outlet 532 to achieve heat exchange with the refrigerant in the evaporator 53.

[0050] Based on the above embodiment, optionally, the heat exchanger is a condenser.

[0051] Among them, the condenser has a simple structure and has a good heat transfer capability, which can maintain stable operation of the system.

[0052] An embodiment of the present invention provides an air conditioner based on the above embodiment, including a cooling device of a compressor driver according to any embodiment of the present invention.

[0053] The air conditioner provided by the embodiment of the present invention has the same beneficial effects as the cooling device of the compressor driver described in any embodiment of the present invention.

[0054] It should be understood that the various forms of the processes shown above can be used to reorder, add, or delete steps. For example, the steps described in the present invention can be performed in parallel, sequentially, or in a different order, as long as the desired results of the technical solution of the present invention can be achieved. This is not limited herein.

[0055] The above specific embodiments do not limit the scope of protection of the present invention. Those skilled in the art will appreciate that various modifications, combinations, sub-combinations, and substitutions may be made based on design requirements and other factors. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention are intended to be included within the scope of protection of the present invention.

Claims

1. A cooling device for a compressor driver, characterized in that: include: A compressor, a cooling tower, a heat exchanger, a refrigerant processing module, and a compressor drive assembly, wherein the output end of the compressor is connected to the input end of the heat exchanger via a first pipeline, the output end of the heat exchanger is connected to the input end of the refrigerant processing module via a first pipeline, and the output end of the refrigerant processing module is connected to the input end of the compressor via a first pipeline; the compressor is used to inhale the refrigerant in the first pipeline between the refrigerant processing module and the compressor and compress it into gas; the refrigerant processing module is used to process the refrigerant output by the heat exchanger; The heat exchanger includes a water inlet and a water outlet, and the cooling tower is connected to the water inlet and the water outlet of the heat exchanger via a second pipeline. The cooling tower is used to provide cooling water to the heat exchanger and the compressor drive assembly; the heat exchanger is used to cool the gas in the first pipeline; The water inlet of the heat exchanger is connected to the inlet of the compressor drive assembly through a second pipeline; the water outlet of the heat exchanger is connected to the outlet of the compressor drive assembly through a second pipeline; the compressor drive assembly is used to drive the compressor to operate.

2. The cooling device for a compressor driver according to claim 1, characterized in that: The compressor drive assembly includes a controller and a cold plate, wherein the controller is arranged on the cold plate, and the cold plate is used to dissipate heat for the controller; The water inlet of the heat exchanger is connected to the inlet of the cold plate through a second pipeline; the water outlet of the heat exchanger is connected to the outlet of the cold plate through a second pipeline.

3. The cooling device for a compressor driver according to claim 2, characterized in that: The second pipeline is a cooling water pipeline; the cooling water pipeline includes a first cooling water pipeline, a second cooling water pipeline, a third cooling water pipeline and a fourth cooling water pipeline; The cooling tower is connected to the water inlet of the heat exchanger through the first cooling water pipeline, and the cooling tower is connected to the water outlet of the heat exchanger through the second cooling water pipeline; the water inlet of the heat exchanger is connected to the inlet of the cold plate through the third cooling water pipeline; the water outlet of the heat exchanger is connected to the outlet of the cold plate through the fourth cooling water pipeline.

4. The cooling device for a compressor driver according to claim 2, wherein: The temperature of the cooling water is 30°C-40°C.

5. The cooling device for a compressor driver according to claim 3, characterized in that: The first pipeline includes a copper pipe, and / or the second pipeline includes a galvanized steel pipe.

6. The cooling device for a compressor driver according to claim 1, wherein The refrigerant processing module includes: a drying filter, the output end of the heat exchanger is connected to the input end of the drying filter through a first pipeline; The drying filter is used to dry the cooled gas and liquid in the heat exchanger and absorb impurities.

7. The cooling device for a compressor driver according to claim 6, characterized in that: The refrigerant processing module further includes: an electronic expansion valve, wherein the output end of the drying filter is connected to the input end of the electronic expansion valve via a first pipeline; The electronic expansion valve is used to convert gas and liquid at a first pressure in the filter drier into gas and liquid at a second pressure, wherein the first pressure is greater than the second pressure.

8. The cooling device for a compressor driver according to claim 7, characterized in that: The refrigerant processing module further includes: an evaporator, the output end of the electronic expansion valve is connected to the input end of the evaporator through a first pipeline, and the output end of the evaporator is connected to the input end of the compressor through the first pipeline; The evaporator is used to process the gas and liquid at the second pressure into gas.

9. The cooling device for a compressor driver according to claim 1, wherein The heat exchanger is a condenser.

10. An air conditioner, characterized in that: A cooling device comprising a compressor driver according to any one of claims 1 to 9.

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