High-power energy storage converter

Abstract

The utility model provides a high-power energy storage converter, which relates to the technical field of energy storage converter equipment, and comprises a cabinet, an air cooling module and a liquid cooling module, and a reactor and an IGBT (insulated gate bipolar transistor) module are arranged in the cabinet; the air cooling module comprises an air cooling unit and a heat dissipation air duct, the air cooling unit is arranged in the cabinet, and the heat dissipation air duct is arranged between the reactor and the air cooling unit; the liquid cooling module comprises a heat conduction plate, a liquid inlet pipeline, a liquid outlet pipeline and a liquid cooling unit, the heat conduction plate is attached to the IGBT module, the heat conduction plate is provided with a heat exchange cavity, the heat exchange cavity is communicated to the liquid cooling unit through the liquid inlet pipeline and the liquid outlet pipeline, and the liquid cooling unit is used for receiving and cooling a cooling liquid from the liquid outlet pipeline; and the cooled cooling liquid is driven to the liquid inlet pipeline. In the high-power energy storage converter, the air cooling module and the liquid cooling module pointedly cool functional elements in the high-power energy storage converter in a mode of combining air cooling and liquid cooling, so that effective heat dissipation can be realized.

Description

Technical Field

[0001] The utility model relates to the technical field of energy storage converter equipment, in particular to a high-power energy storage converter. Background Art

[0002] The energy storage inverter is a key device for connecting energy storage batteries to the power system. It can control the charging and discharging process of the battery, perform AC / DC conversion, and directly supply power to AC loads in the absence of a power grid.

[0003] The energy storage inverter has a small space and many components, and generates a lot of heat. When running for a long time, the temperature inside the energy storage inverter rises. The high temperature environment will damage the components and may shorten the life of the components, thereby reducing the stability and safety of the energy storage inverter. In order to improve the service life and performance of the energy storage inverter, most existing energy storage inverters use air cooling to cool down. However, with the continuous increase in usage demand, the single-unit power of the energy storage inverter is also increasing. For example, the single-unit power of the latest energy storage inverter has reached 2.5MW. The requirements for heat dissipation of the whole machine are becoming more and more stringent. The existing single air cooling method can no longer meet the heat dissipation needs of the energy storage inverter. Utility Model Content

[0004] The utility model provides a high-power energy storage converter, which is used to solve the defect that the single air heat dissipation method in the prior art can no longer meet the heat dissipation demand of the energy storage converter.

[0005] The utility model provides a high-power energy storage converter, comprising:

[0006] A cabinet, wherein a reactor and an IGBT module are arranged inside the cabinet;

[0007] An air-cooling module, the air-cooling module comprising an air-cooling unit and a heat dissipation duct, the air-cooling unit is arranged in the cabinet, and the heat dissipation duct is arranged between the reactor and the air-cooling unit;

[0008] A liquid cooling module, the liquid cooling module includes a heat conducting plate, a liquid inlet pipeline, a liquid outlet pipeline and a liquid cooling unit, the heat conducting plate is fitted on the IGBT module, the heat conducting plate has a heat exchange cavity, the heat exchange cavity is connected to the liquid cooling unit via the liquid inlet pipeline and the liquid outlet pipeline respectively, the liquid cooling unit is used to receive and cool the coolant from the liquid outlet pipeline, and drive the cooled coolant to the liquid inlet pipeline.

[0009] According to a high-power energy storage converter provided by the utility model, the reactor is arranged at the bottom of the cabinet, and the air-cooling unit is arranged at the top of the cabinet.

[0010] According to a high-power energy storage converter provided by the utility model, a first containing box is arranged inside the cabinet, the reactor is arranged in the first containing box, the cabinet is provided with an air inlet, and the first containing box is connected to the outside of the cabinet via the air inlet;

[0011] A second storage box is arranged inside the cabinet, the air cooling unit is arranged in the second storage box, the cabinet is provided with an air outlet, and the second storage box is connected to the outside of the cabinet through the air outlet;

[0012] The first containing box and the second containing box are in fluid communication via the heat dissipation duct.

[0013] According to a high-power energy storage converter provided by the utility model, shutters are provided at the air inlet and / or the air outlet.

[0014] According to a high-power energy storage converter provided by the utility model, there are multiple IGBT modules and multiple heat-conducting plates, and the multiple heat-conducting plates are arranged in a one-to-one correspondence with the multiple IGBT modules.

[0015] According to a high-power energy storage converter provided by the utility model, the liquid inlet pipeline includes a liquid inlet main pipe and a plurality of liquid inlet branch pipes, one end of the plurality of liquid inlet branch pipes are respectively connected to the heat conducting plate one by one, and the other end is simultaneously connected to the liquid inlet main pipe, and one end of the liquid inlet main pipe is connected to the liquid cooling unit;

[0016] The liquid outlet pipeline includes a liquid outlet main pipe and multiple liquid outlet branch pipes, one end of each of the liquid outlet branch pipes is connected to the heat conduction plate one by one, and the other end is simultaneously connected to the liquid outlet main pipe, and one end of the liquid outlet main pipe is connected to the liquid cooling unit.

[0017] According to a high-power energy storage converter provided by the utility model, a plurality of the heat conducting plates and a plurality of the IGBT modules are sequentially stacked and arranged in the cabinet.

[0018] According to a high-power energy storage converter provided by the utility model, the liquid cooling unit is arranged on the side of the cabinet.

[0019] According to a high-power energy storage inverter provided by the utility model, the liquid cooling unit includes a liquid cooling unit, a water pump and a heat exchanger, the heat exchanger has a cooling chamber, the liquid inlet pipeline and the liquid outlet pipeline are both connected to the cooling chamber, the liquid cooling unit is arranged on the side of the heat exchanger, and the water pump is arranged at one end of the liquid inlet pipeline close to the heat exchanger.

[0020] According to a high-power energy storage converter provided by the utility model, the air cooling unit includes a plurality of centrifugal fans, and the centrifugal fans can apply a suction force toward the heat dissipation air duct.

[0021] The utility model provides a high-power energy storage converter, comprising a cabinet, an air-cooling module and a liquid-cooling module, wherein the air-cooling module can cool the reactor in the cabinet by air cooling, and the liquid-cooling module can cool the IGBT module in the cabinet by liquid cooling. The functional components in the high-power energy storage converter are cooled in a targeted manner by combining air cooling and liquid cooling, thereby achieving effective heat dissipation and achieving the highest energy efficiency ratio while improving cost advantages. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the present invention or the prior art, a brief introduction will be given below to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 It is a schematic structural diagram of a high-power energy storage converter according to one embodiment of the utility model.

[0024] Figure 2 It is a structural schematic diagram of an air cooling module in a high-power energy storage converter according to one embodiment of the utility model.

[0025] Figure 3 A partial structural schematic diagram of a high-power energy storage converter according to an embodiment of the utility model.

[0026] Figure 4 It is a structural schematic diagram of a liquid cooling module in a high-power energy storage converter according to one embodiment of the utility model.

[0027] Figure 5 It is a schematic diagram of the structure of a heat conduction plate in a liquid cooling module in a high-power energy storage converter according to one embodiment of the utility model.

[0028] Reference numerals:

[0029] 100, cabinet; 110, reactor; 120, IGBT module; 130, first container; 140, second container; 200, air cooling module; 210, air cooling unit; 220, heat dissipation duct; 300, liquid cooling module; 310, heat conduction plate; 320, liquid inlet pipeline; 321, liquid inlet main pipe; 322, liquid inlet branch pipe; 330, liquid outlet pipeline; 331, liquid outlet main pipe; 332, liquid outlet branch pipe; 340, liquid cooling unit. DETAILED DESCRIPTION

[0030] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be described clearly and completely in conjunction with the drawings in the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0031] In one embodiment of the present invention, a high-power energy storage converter is provided, in which an air cooling module and a liquid cooling module are provided. When the high-power energy storage converter works for a long time, the air cooling module and the liquid cooling module can be combined to dissipate heat for it, thereby avoiding damage caused by high temperature environment and improving the stability and safety of the high-power energy storage converter. Figures 1 to 5 The figure further describes the high-power energy storage converter in this embodiment.

[0032] Specifically, if Figure 1 As shown, the high-power energy storage converter in this embodiment includes: a cabinet 100 , an air cooling module 200 and a liquid cooling module 300 .

[0033] Among them, the cabinet 100 is provided with an inductor 110 and an IGBT module 120; the air cooling module 200 includes an air cooling unit 210 and a heat dissipation duct 220, the air cooling unit 210 is arranged in the cabinet 100, and the heat dissipation duct 220 is arranged between the inductor 110 and the air cooling unit 210; the liquid cooling module 300 includes a heat conducting plate 310, a liquid inlet pipeline 320, a liquid outlet pipeline 330 and a liquid cooling unit 340, the heat conducting plate 310 is fitted on the IGBT module 120, the heat conducting plate 310 has a heat exchange cavity, the heat exchange cavity is connected to the liquid cooling unit 340 via the liquid inlet pipeline 320 and the liquid outlet pipeline 330 respectively, the liquid cooling unit 340 is used to receive and cool the coolant from the liquid outlet pipeline 330, and drive the cooled coolant to the liquid inlet pipeline 320.

[0034] For example, Figure 1As shown, the cabinet 100 is roughly constructed as a rectangular shape with a certain height. The cabinet 100 can be constructed of a metal frame and a metal plate. The interior of the cabinet 100 has a storage space, and related functional elements can be arranged in the storage space. For example, in this embodiment, the inductor 110 and the IGBT module 120 are both arranged in the storage space.

[0035] In one embodiment, the cabinet 100 may include a top plate, a bottom plate, and a plurality of side plates, wherein the top plate is located above the bottom plate, and the plurality of side plates are disposed between the top plate and the bottom plate, and the top plate, the bottom plate, and the plurality of side plates are enclosed together to form a receiving space. In addition, in order to facilitate the installation of various functional components, a cabinet door may also be disposed on the side of the cabinet 100.

[0036] The air cooling module 200 is used to cool down the reactor 110 in the cabinet 100 by air cooling. The air cooling module 200 includes an air cooling unit 210 and a heat dissipation duct 220. The air cooling unit 210 can be fixed in the cabinet 100 by means of bolts and other structures. The heat dissipation duct 220 has a fluid channel, and air can flow in the fluid channel. The heat dissipation duct 220 can also be arranged in the cabinet 100. One end of the heat dissipation duct 220 is connected to the area where the reactor 110 is located, and the other end is connected to the area where the air cooling unit 210 is located.

[0037] In actual use, when the reactor 110 is working and generates high temperature, the air in the area where the reactor 110 is located will absorb the heat released by the reactor 110 and have a higher temperature. At this time, the air cooling unit 210 can be operated, and the air cooling unit 210 can generate a suction force. The high-temperature air around the reactor 110 can be sucked to the area where the air cooling unit 210 is located through the heat dissipation duct 220 and discharged to the outside, while the air with a lower external temperature can enter the area where the reactor 110 is located to receive the heat generated by the reactor 110. In this way, the air circulates and the reactor 110 can be continuously cooled.

[0038] In one embodiment, when the air cooling unit 210 is in operation, the air cooling unit 210 can generate a blowing force toward the heat dissipation duct 220. When the reactor 110 is working and the temperature of the surrounding air increases, the air cooling unit 210 can blow the air with a lower temperature to the area where the reactor 110 is located through the heat dissipation duct 220. The air with a lower temperature can squeeze out the air with a higher temperature, and the air with a lower temperature can also receive the heat generated by the reactor 110. In this way, the air can circulate and the reactor 110 can be continuously cooled.

[0039] The liquid cooling module 300 is used to cool the IGBT module 120 in the cabinet 100 by liquid cooling. The liquid cooling module 300 includes a heat conducting plate 310, a liquid inlet pipeline 320, a liquid outlet pipeline 330 and a liquid cooling unit 340. The heat conducting plate 310 can be made of a metal material with strong thermal conductivity, such as copper or aluminum. The heat conducting plate 310 has a cavity inside, which is a heat exchange cavity. The liquid cooling unit 340 can receive and cool the coolant from the liquid outlet pipeline 330, and drive the cooled coolant to the liquid inlet pipeline 320.

[0040] Exemplarily, the cooling liquid may be an ethylene glycol aqueous solution.

[0041] In actual use, the IGBT module 120 can generate high temperature during operation, and this heat can be transferred to the heat conducting plate 310. The coolant in the heat exchange cavity of the heat conducting plate 310 can absorb the heat. At this time, the liquid cooling unit 340 can be operated. The liquid cooling unit 340 can drive the coolant with a lower temperature into the heat exchange cavity of the heat conducting plate 310 through the liquid inlet pipe. The coolant that absorbs the heat in the heat exchange cavity can enter the liquid cooling unit 340 through the liquid outlet pipe 330. These coolants are cooled and then the cooled coolant is driven to the liquid inlet pipe again. In this way, the coolant circulates and the IGBT module 120 can be continuously cooled.

[0042] Therefore, in the high-power energy storage inverter of the present embodiment, the air cooling module 200 can adopt air cooling to cool the reactor 110 in the cabinet 100, and the liquid cooling module 300 can adopt liquid cooling to cool the IGBT module 120 in the cabinet 100. The combination of air cooling and liquid cooling can be used to specifically cool the functional components in the high-power energy storage inverter, thereby achieving effective heat dissipation and achieving the highest energy efficiency ratio while improving cost advantages.

[0043] Furthermore, in this embodiment, the reactor 110 is disposed at the bottom of the cabinet 100 , and the air cooling unit 210 is disposed at the top of the cabinet 100 .

[0044] It can be understood that the inductor 110 can be fixed at the bottom of the storage space of the cabinet 100 by means of bolts and other structures, and the air cooling unit 210 can be fixed at the top of the storage space of the cabinet 100 by means of bolts and other structures, or the air cooling unit 210 can also be set above the storage space.

[0045] In addition, in other embodiments, according to installation and use requirements, the reactor 110 can also be set at other positions of the cabinet 100, for example, the reactor 110 can be set in the middle or top of the storage space of the cabinet 100. Similarly, the air cooling unit 210 can also be set at other positions of the cabinet 100, for example, the reactor 110 can be set in the middle or bottom of the storage space of the cabinet 100.

[0046] Further, in this embodiment, if Figure 2 As shown, a first containing box 130 is arranged inside the cabinet 100, the reactor 110 is arranged in the first containing box 130, the cabinet 100 is provided with an air inlet, and the first containing box 130 is connected to the outside of the cabinet 100 via the air inlet; a second containing box 140 is arranged inside the cabinet 100, the air cooling unit 210 is arranged in the second containing box 140, the cabinet 100 is provided with an air outlet, and the second containing box is connected to the outside of the cabinet 100 via the air outlet; the first containing box 130 and the second containing box 140 are fluidically connected via the heat dissipation air duct 220.

[0047] Exemplarily, the first containing box 130 can be constructed of a metal frame and a metal plate. The interior of the first containing box 130 has a relatively independent first containing chamber, and the reactor 110 is arranged in the first containing chamber. The cabinet 100 is provided with an air inlet, and the first containing chamber can be connected to the outside of the cabinet 100 via the air inlet.

[0048] For example, in this embodiment, the first containing box 130 is arranged at the bottom of the cabinet 100, and a bottom opening is arranged at the bottom of the first containing box 130. The bottom plate of the cabinet 100 is provided with an air inlet, and the bottom opening is correspondingly arranged above the air inlet, so that external air can enter the first containing box through the air inlet.

[0049] Similarly, the second containing box 140 can also be constructed of a metal frame and a metal plate. The interior of the second containing box 140 has a relatively independent second containing chamber, and the air cooling unit 210 is arranged in the second containing chamber. The cabinet 100 is provided with an air outlet, and the second containing chamber can be connected to the outside of the cabinet 100 through the air outlet.

[0050] For example, in this embodiment, the second containing box 140 is arranged on the top of the cabinet 100, and a top opening is provided on the top of the second containing box 140. The top plate of the cabinet 100 can be provided with an air outlet, and the top opening is correspondingly arranged below the air outlet. The air in the second containing box can reach the outside of the cabinet 100 through the air outlet.

[0051] In one embodiment, the air cooling unit 210 may be a centrifugal fan that can generate a suction force. For example, the air cooling unit 210 includes a plurality of centrifugal fans that can apply a suction force toward the heat dissipation air duct 220 .

[0052] In actual use, when the air-cooling unit 210 is working, the external cold air can enter the first storage compartment where the reactor 110 is located through the air inlet. After absorbing the heat generated by the reactor 110, the air enters the second storage compartment where the air-cooling unit 210 is located from bottom to top through the heat dissipation air duct. After that, the hot air reaches the outside of the cabinet 100 through the air outlet.

[0053] Optionally, in order to prevent foreign matter from entering the interior of the cabinet 100 through the air inlet and the air outlet, shutters are provided at the air inlet and / or the air outlet.

[0054] Furthermore, in this embodiment, there are multiple IGBT modules 120 , and there are multiple heat conducting plates 310 . The multiple heat conducting plates 310 are attached to the multiple IGBT modules 120 in a one-to-one correspondence.

[0055] For example, Figure 3 and Figure 5 As shown, each heat conducting plate 310 can be attached to the side of each IGBT module 120, and multiple heat conducting plates 310 and multiple IGBT modules 120 can be stacked in the horizontal direction in the cabinet 100. It can be understood that, on the premise of ensuring that each IGBT module 120 is attached with a heat conducting plate 310, a small gap can be left between the heat conducting plate 310 and the adjacent and non-attached IGBT module 120 to allow air to circulate normally.

[0056] Therefore, through this configuration, it can be ensured that the heat generated by each IGBT module 120 can be transferred to the heat conducting plate 310 , and at the same time, air can flow between two adjacent IGBT modules 120 to avoid overheating.

[0057] In one embodiment, Figure 3 and Figure 4 As shown, the liquid inlet pipeline 320 includes a liquid inlet main pipe 321 and a plurality of liquid inlet branch pipes 322. One end of the plurality of liquid inlet branch pipes 322 is connected to the heat conducting plate 310 one by one, and the other end is simultaneously connected to the liquid inlet main pipe 321. One end of the liquid inlet main pipe 321 is connected to the liquid cooling unit 340.

[0058] The liquid outlet pipeline 330 includes a liquid outlet main pipe 331 and multiple liquid outlet branch pipes 332. One end of the multiple liquid outlet branch pipes 332 are respectively connected to the heat conduction plate 310, and the other end is simultaneously connected to the liquid outlet main pipe 331. One end of the liquid outlet main pipe 331 is connected to the liquid cooling unit 340.

[0059] Exemplarily, the liquid inlet main pipe 321 may be a stainless steel pipe or a rubber pipe, and the liquid inlet branch pipe 322 may be a stainless steel pipe or a rubber pipe. For example, in this embodiment, the liquid inlet main pipe 321 is a stainless steel pipe, and the liquid inlet branch pipe 322 is a rubber pipe. The inner diameter of the liquid inlet main pipe 321 may be greater than the inner diameter of the liquid inlet branch pipe 322. Moreover, one end of each liquid inlet branch pipe 322 is connected to the heat conducting plate 310 one by one, and the other ends of all liquid inlet branch pipes 322 are connected to the liquid inlet main pipe 321.

[0060] Similarly, the liquid outlet main pipe 331 may be a stainless steel pipe or a rubber pipe, and the liquid outlet branch pipe 332 may be a stainless steel pipe or a rubber pipe. For example, in this embodiment, the liquid outlet main pipe 331 is a stainless steel pipe, and the liquid outlet branch pipe 332 is a rubber pipe. The inner diameter of the liquid outlet main pipe 331 may be greater than the inner diameter of the liquid outlet branch pipe 332. Moreover, one end of each liquid outlet branch pipe 332 is connected to the heat conducting plate 310 in a one-to-one correspondence, and the other ends of all the liquid outlet branch pipes 332 are connected to the liquid outlet main pipe 331.

[0061] Therefore, in actual use, the coolant in the liquid cooling unit 340 enters the liquid inlet main pipe 321, and then the coolant in the liquid inlet main pipe 321 can enter the multiple liquid inlet branch pipes 322 respectively, and then the coolant in the multiple liquid inlet branch pipes 322 can enter the heat exchange cavity of the multiple heat transfer plates 310 respectively. After absorbing the heat from the corresponding IGBT modules 120, these coolants can enter the multiple liquid outlet branch pipes 332 respectively, and the coolant in the multiple liquid outlet branch pipes 332 enters the liquid outlet main pipe 331 at the same time. The coolant with heat in the liquid outlet main pipe 331 returns to the liquid cooling unit 340 again. Therefore, the cooling treatment of the multiple IGBT modules 120 can be achieved through this circulating flow method.

[0062] Further, in one embodiment, if Figure 1 As shown, the liquid cooling unit 340 is disposed on a side of the cabinet 100 .

[0063] It can be understood that in this embodiment, the air cooling unit 210 is arranged on the top of the cabinet 100, and the inductor 110 is arranged at the bottom of the cabinet 100. In order to avoid interfering with the cooling of the air cooling unit 210, the liquid cooling unit 340 can be arranged on the side of the cabinet 100 in the horizontal direction.

[0064] Of course, in other embodiments, when the air cooling unit 210 and the reactor 110 are arranged at other positions of the cabinet 100 , the liquid cooling unit 340 may also be arranged at other positions of the cabinet 100 without interfering with the cooling of the air cooling unit 210 .

[0065] In this embodiment, the liquid cooling unit 340 needs to drive the coolant into the liquid inlet pipeline 320, and also needs to cool down the coolant from the liquid outlet pipeline 330. In order to meet this requirement, as an implementation method, the liquid cooling unit 340 includes a liquid cooling unit, a water pump and a heat exchanger. The heat exchanger has a cooling cavity. The liquid inlet pipeline 320 and the liquid outlet pipeline 330 are both connected to the cooling cavity. The liquid cooling unit is arranged on the side of the heat exchanger, and the water pump is arranged at one end of the liquid inlet pipeline 320 close to the heat exchanger.

[0066] Exemplarily, the heat exchanger can be made of metal materials, such as copper and aluminum. The heat exchanger has a cavity inside, which is the cooling cavity. The liquid inlet pipeline 320 and the liquid outlet pipeline 330 are respectively connected to the two ends of the cooling cavity. The liquid cooling unit includes a plurality of fans, which are arranged on the side of the heat exchanger. These fans can blow air to the heat exchanger when running. The flowing air can take away the heat of the heat exchanger when contacting the heat exchanger, so that the coolant in the heat exchanger is cooled down. One end of the liquid inlet pipeline 320 is connected to the heat exchanger, and the water pump is arranged at this end of the liquid inlet pipeline 320.

[0067] In actual use, the water pump can pump the coolant in the heat exchanger to the liquid inlet pipeline 320. After the coolant in the liquid outlet pipeline 330 enters the heat exchanger, the heat in the coolant can be transferred to the heat exchanger. When the liquid cooling unit blows air to the heat exchanger, the air can take away the heat of the heat exchanger, thereby cooling the coolant.

[0068] In addition, in order to improve the cooling effect, the contact area between the heat exchanger and the outside can be increased. For example, a plurality of fins can be provided on the outside of the heat exchanger.

[0069] The device embodiments described above are merely illustrative, wherein the units described as separate components may or may not be physically separated, and the components displayed as units may or may not be physical units, that is, they may be located in one place, or they may be distributed on multiple network units. Some or all of the modules may be selected according to actual needs to achieve the purpose of the scheme of this embodiment. Ordinary technicians in this field can understand and implement it without paying creative labor.

[0070] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the utility model.

Claims

1. A high-power energy storage converter, characterized in that: include: A cabinet, wherein a reactor and an IGBT module are arranged inside the cabinet; An air-cooling module, the air-cooling module comprising an air-cooling unit and a heat dissipation duct, the air-cooling unit is arranged in the cabinet, and the heat dissipation duct is arranged between the reactor and the air-cooling unit; A liquid cooling module, the liquid cooling module includes a heat conducting plate, a liquid inlet pipeline, a liquid outlet pipeline and a liquid cooling unit, the heat conducting plate is fitted on the IGBT module, the heat conducting plate has a heat exchange cavity, the heat exchange cavity is connected to the liquid cooling unit via the liquid inlet pipeline and the liquid outlet pipeline respectively, the liquid cooling unit is used to receive and cool the coolant from the liquid outlet pipeline, and drive the cooled coolant to the liquid inlet pipeline.

2. The high-power energy storage converter according to claim 1, characterized in that: The reactor is arranged at the bottom of the cabinet, and the air cooling unit is arranged at the top of the cabinet.

3. The high-power energy storage converter according to claim 1, characterized in that: A first containing box is arranged inside the cabinet, the reactor is arranged in the first containing box, the cabinet is provided with an air inlet, and the first containing box is connected to the outside of the cabinet via the air inlet; A second storage box is arranged inside the cabinet, the air cooling unit is arranged in the second storage box, the cabinet is provided with an air outlet, and the second storage box is connected to the outside of the cabinet through the air outlet; The first containing box and the second containing box are in fluid communication via the heat dissipation duct.

4. The high-power energy storage converter according to claim 3 is characterized in that: The air inlet and / or the air outlet is provided with shutters.

5. The high-power energy storage converter according to claim 1, characterized in that: There are a plurality of IGBT modules, a plurality of heat conducting plates, and the plurality of heat conducting plates are arranged in a one-to-one correspondence with the plurality of IGBT modules.

6. The high-power energy storage converter according to claim 5, characterized in that: The liquid inlet pipeline includes a liquid inlet main pipe and a plurality of liquid inlet branch pipes, one end of each of the liquid inlet branch pipes is connected to the heat conducting plate one by one, and the other end is simultaneously connected to the liquid inlet main pipe, and one end of the liquid inlet main pipe is connected to the liquid cooling unit; The liquid outlet pipeline includes a liquid outlet main pipe and multiple liquid outlet branch pipes, one end of each of the liquid outlet branch pipes is connected to the heat conduction plate one by one, and the other end is simultaneously connected to the liquid outlet main pipe, and one end of the liquid outlet main pipe is connected to the liquid cooling unit.

7. The high-power energy storage converter according to claim 5, characterized in that: A plurality of the heat conducting plates and a plurality of the IGBT modules are sequentially stacked and arranged in the cabinet.

8. The high-power energy storage converter according to claim 1, characterized in that: The liquid cooling unit is arranged on the side of the cabinet.

9. The high-power energy storage converter according to claim 1, characterized in that: The liquid cooling unit includes a liquid cooling unit, a water pump and a heat exchanger. The heat exchanger has a cooling cavity. The liquid inlet pipeline and the liquid outlet pipeline are both connected to the cooling cavity. The liquid cooling unit is arranged on the side of the heat exchanger. The water pump is arranged at one end of the liquid inlet pipeline close to the heat exchanger.

10. The high-power energy storage converter according to claim 1, characterized in that: The air cooling unit includes a plurality of centrifugal fans, and the centrifugal fans can apply a suction force toward the heat dissipation air duct.

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