Heat dissipation structure of energy storage converter and energy storage converter

Abstract

The utility model provides a heat dissipation structure of an energy storage converter and the energy storage converter, and the heat dissipation structure comprises a box body which is provided with a first cabin and a second cabin; the cold plate is arranged in the first cabin and is in a U shape, the side, located in the U-shaped groove, of the cold plate in the thickness direction is used for arranging a first electronic device, the side, located outside the U-shaped groove, of the cold plate is used for arranging a second electronic device, and a liquid cooling flow channel is formed in the cold plate; the liquid cooling radiator is arranged in the second cabin, the liquid inlet end of the liquid cooling radiator is communicated with one end of the liquid cooling flow channel, and the liquid outlet end of the liquid cooling radiator is communicated with the other end of the liquid cooling flow channel; one part of the air-cooling heat dissipation bar extends into the first cabin, and the other part of the air-cooling heat dissipation bar extends into the second cabin; the first fan is arranged in the second cabin and used for enabling air to enter from the air inlet and flow out from the air outlet after flowing through the liquid cooling radiator and the part, located in the second cabin, of the air cooling heat dissipation bar. The combined string type energy storage converter has high heat dissipation efficiency, and the power density of the combined string type energy storage converter is improved.

Description

Technical Field

[0001] This utility model relates to the field of power electronics technology, and in particular to a heat dissipation structure and an energy storage converter. Background Technology

[0002] Currently, the energy storage industry has become a field of great interest. The power conversion system (PCS), as a bidirectional current-controllable conversion device connecting the energy storage battery system and the power grid, is a key component in energy storage systems.

[0003] The existing heat dissipation structure of string energy storage converters has low heat dissipation efficiency, resulting in low power density of string energy storage converters. Utility Model Content

[0004] This utility model provides a heat dissipation structure and energy storage converter to solve the problem of low heat dissipation efficiency of existing string energy storage converter heat dissipation structures, which leads to low power density of string energy storage converters.

[0005] To solve the above-mentioned technical problems, this utility model is implemented as follows:

[0006] In a first aspect, embodiments of this utility model provide a heat dissipation structure for an energy storage converter, comprising:

[0007] The container has a first compartment and a second compartment;

[0008] A cold plate is disposed in the first compartment. The cold plate is U-shaped. The side of the cold plate located inside the U-shaped groove in the thickness direction is used to set a first electronic device, and the side of the cold plate located outside the U-shaped groove in the thickness direction is used to set a second electronic device. The cold plate has a liquid cooling channel.

[0009] A liquid-cooled radiator is installed in the second compartment. The liquid inlet of the liquid-cooled radiator is connected to one end of the liquid cooling channel, and the liquid outlet of the liquid-cooled radiator is connected to the other end of the liquid cooling channel.

[0010] An air-cooled heat dissipation radiator, a portion of which extends into the first compartment and the other portion of which extends into the second compartment;

[0011] A first fan is located in the second compartment, which has an air inlet and an air outlet. The first fan is used to allow air to enter through the air inlet, flow through the liquid-cooled radiator and the portion of the air-cooled radiator located in the second compartment, and then flow out through the air outlet.

[0012] Optionally, it also includes:

[0013] A second fan is located in the first compartment. The second fan is used to circulate air in the first compartment in the order of flowing through the cold plate, the portion of the air-cooled heat dissipation radiator located in the first compartment, and then flowing back through the cold plate.

[0014] Optionally, the first compartment has a first heat dissipation area and a second heat dissipation area formed by a partition, and also has at least two connecting openings that connect the first heat dissipation area and the second heat dissipation area;

[0015] The portion of the cold plate and the portion of the air-cooled heat dissipation radiator located in the first compartment are both located in the first heat dissipation area.

[0016] The second fan is located in one of the at least two connecting openings.

[0017] Optionally, the second fan is positioned opposite the portion of the air-cooled heat dissipation radiator located in the first compartment, and the portion of the air-cooled heat dissipation radiator located in the first compartment is positioned between the second fan and the cold plate.

[0018] Optionally, the first heat dissipation area is also used to house an electrolytic capacitor.

[0019] Optionally, the second heat dissipation area is used to house at least one electronic device selected from AC filter board, relay board, AC electromagnetic interference shielding EMI board, L inductor, signal board, power supply board, and DC contactor.

[0020] Optionally, the first electronic device includes a reactor, which is potted and disposed within a U-shaped groove of the cold plate; and / or,

[0021] The second electronic device includes a power module.

[0022] Optionally, the liquid-cooled radiator includes:

[0023] A liquid storage tank is used to store liquid heat transfer medium, and the outlet end of the liquid storage tank is connected to one end of the liquid cooling channel through a first pipe;

[0024] A liquid-cooled heat dissipation radiator, wherein the liquid outlet of the liquid-cooled heat dissipation radiator is connected to the first pipe through a second pipe, and the liquid inlet of the liquid-cooled heat dissipation radiator is connected to the other end of the liquid cooling channel;

[0025] A pumping device, located in the second pipeline, is used to pump liquid heat transfer medium into the liquid cooling channel.

[0026] Secondly, embodiments of the present invention provide an energy storage converter, including a heat dissipation structure for the energy storage converter as described in any one of the first aspects.

[0027] Thirdly, this utility model embodiment provides an integrated energy storage unit, including at least one energy storage converter as described in the second aspect.

[0028] In this embodiment of the utility model, the heat dissipation structure includes: a housing having a first compartment and a second compartment; a cold plate disposed in the first compartment, the cold plate being U-shaped, with one side of the cold plate in the thickness direction located inside the U-shaped groove for housing a first electronic device, and the other side of the cold plate in the thickness direction located outside the U-shaped groove for housing a second electronic device, the cold plate having a liquid cooling channel; a liquid-cooled radiator disposed in the second compartment, the liquid inlet end of the liquid-cooled radiator being connected to one end of the liquid cooling channel, and the liquid outlet end of the liquid-cooled radiator being connected to the other end of the liquid cooling channel; an air-cooled radiator, a portion of which extends into the first compartment, and another portion of which extends into the second compartment; and a first fan disposed in the second compartment, the second compartment having an air inlet and an air outlet, the first fan being used to allow air to enter through the air inlet, flow through the portion of the air-cooled radiator located in the second compartment and the liquid-cooled radiator, and then flow out through the air outlet. This embodiment of the invention utilizes both liquid cooling and air cooling radiators to effectively dissipate heat from the first compartment, achieving high heat dissipation efficiency and improving the power density of the string energy storage converter. Attached Figure Description

[0029] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0030] Figure 1 This is one of the structural schematic diagrams of the heat dissipation structure of the energy storage converter in this embodiment of the utility model;

[0031] Figure 2 This is the second schematic diagram of the heat dissipation structure of the energy storage converter in this embodiment of the utility model;

[0032] Figure 3 This is a schematic diagram of the internal structure of the cold plate and the liquid cooling radiator.

[0033] Figure 4 This is a schematic diagram of the structure of the cold plate and liquid-cooled heat sink.

[0034] Figure 5 This is a top view of the internal structure of the cold plate;

[0035] in:

[0036] 1. Enclosure; 10. Connecting opening; 11. First compartment; 11a. First heat dissipation area; 11b. Second heat dissipation area; 12. Second compartment; 111. Partition; 121. Air inlet; 122. Air outlet;

[0037] 2. Cold plate; 21. Liquid cooling channel; 22. U-shaped groove;

[0038] 3. Liquid-cooled radiator; 31. Liquid reservoir; 32. Liquid-cooled radiator; 33. Pumping device; 301. First pipe; 302. Second pipe;

[0039] 4. Second fan; 5. Air-cooled heat dissipation radiator; 6. First fan; 7. First electronic component; 8. Second electronic component. Detailed Implementation

[0040] The technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0041] The terms "first," "second," etc., used in this embodiment of the invention are used to distinguish similar objects, not to describe a specific order or sequence. It should be understood that such terms can be used interchangeably where appropriate so that the embodiments of the invention can be implemented in orders other than those illustrated or described herein, and the objects distinguished by "first" and "second" are generally of the same class, without limiting the number of objects; for example, the first object can be one or more. Furthermore, in this embodiment of the invention, "or" indicates at least one of the connected objects. For example, "A or B" covers three scenarios: Scenario 1: including A but not B; Scenario 2: including B but not A; Scenario 3: including both A and B. The character " / " generally indicates that the preceding and following objects are in an "or" relationship.

[0042] In the technical solutions of this utility model embodiment, terms such as "connection," "coupling," or "connected" are not limited to physical or mechanical connections, but can include electrical connections.

[0043] Furthermore, the technical features involved in the different embodiments of this utility model described below can be combined with each other as long as they do not conflict with each other.

[0044] This utility model embodiment provides a heat dissipation structure for an energy storage converter. See [link to relevant documentation]. Figures 1 to 5 As shown, the heat dissipation structure includes:

[0045] The container 1 has a first compartment 11 and a second compartment 12;

[0046] Cold plate 2 is located in the first compartment 11. Cold plate 2 is U-shaped. The side of cold plate 2 located inside the U-shaped groove in the thickness direction is used to set the first electronic device 7, and the side of cold plate 2 located outside the U-shaped groove in the thickness direction is used to set the second electronic device 8. Cold plate 2 has a liquid cooling channel 21.

[0047] The liquid-cooled radiator 3 is located in the second compartment 12. The liquid inlet of the liquid-cooled radiator 3 is connected to one end of the liquid cooling channel 21, and the liquid outlet of the liquid-cooled radiator 3 is connected to the other end of the liquid cooling channel 21.

[0048] Air-cooled heat dissipation radiator 5, a part of which extends into the first compartment 11, and the other part of which extends into the second compartment 12;

[0049] The first fan 6 is located in the second compartment 12, which has an air inlet 121 and an air outlet 122. The first fan 6 is used to allow air to enter through the air inlet 121, flow through the part of the air-cooled heat dissipation radiator 5 located in the second compartment 12 and the liquid-cooled heat sink 3, and then flow out through the air outlet 122.

[0050] In this embodiment of the invention, air enters through the air inlet 121 via the first fan 6, flows through the portion of the air-cooled radiator 5 located in the second chamber 12 and the liquid-cooled radiator 3, and then exits through the air outlet 122. This dissipates heat from the second chamber 12 carried out by the air-cooled radiator 5 and heat from the electronic components on the cold plate 2 carried out by the liquid-cooled radiator 3, achieving efficient heat dissipation. Optionally, the air inlet 121 and the air outlet 122 are located on two opposite sides of the energy storage converter, specifically on two opposite sides along the length of the energy storage converter.

[0051] See details Figure 3 As shown, the cold plate 2 has a liquid cooling channel 21, and the black arrows on the liquid cooling channel 21 indicate the flow direction of the liquid heat transfer medium. Understandably, the liquid heat transfer medium enters the liquid cooling channel 21 from the outlet of the liquid-cooled radiator 3, and then flows back into the liquid-cooled radiator 3 via the outlet of the liquid-cooled radiator 3. During its flow in the liquid cooling channel 21, the liquid heat transfer medium absorbs heat from the electronic devices mounted on the cold plate 2. As it flows back into the liquid-cooled radiator 3, the liquid heat transfer medium carries the heat out of the cold plate 2, thus cooling the electronic devices. It should be noted that... Figure 3 The coiling method of the liquid cooling channel 21 shown is only an example. In actual applications, users can design the coiling method of the liquid cooling channel 21 according to the heat dissipation requirements to improve the heat dissipation effect.

[0052] In some alternative embodiments, water is used as the liquid heat transfer medium. Utilizing the advantages of water's high heat capacity and low cost, the heat dissipation structure can achieve both high thermal conductivity and low cost.

[0053] In this embodiment of the invention, both sides of the cold plate 2 in the thickness direction are used to set electronic devices, which saves the overall space of the energy storage converter and improves the power density.

[0054] In this embodiment of the utility model, see details below. Figure 4 and Figure 5 As shown, the cold plate 2 is U-shaped. The side of the cold plate 2 located inside the U-shaped groove in the thickness direction is used to house the first electronic device 7, while the side outside the U-shaped groove in the thickness direction is used to house the second electronic device 8. This increases the contact area between the first electronic device 7 and the cold plate 2, improving the efficiency of heat dissipation from the first electronic device 7 and achieving efficient heat dissipation. Furthermore, this arrangement also ensures efficient heat dissipation for the second electronic device 8, thus enhancing overall heat dissipation.

[0055] In this embodiment of the invention, the heat dissipation structure includes: a housing 1 having a first chamber 11 and a second chamber 12; a cold plate 2 disposed in the first chamber 11, the cold plate 2 being U-shaped, with one side of the cold plate 2 located inside the U-shaped groove in the thickness direction for housing a first electronic device 7, and the other side of the cold plate 2 located outside the U-shaped groove in the thickness direction for housing a second electronic device 8, the cold plate 2 having a liquid cooling channel 21; and a liquid-cooled radiator 3 disposed in the second chamber 12, the liquid inlet end of the liquid-cooled radiator 3 being connected to one end of the liquid cooling channel 21. The liquid outlet of the liquid-cooled radiator 3 is connected to the other end of the liquid-cooled flow channel 21; the air-cooled radiator 5 has a portion extending into the first compartment 11 and the other portion extending into the second compartment 12; a first fan 6 is located in the second compartment 12, which has an air inlet 121 and an air outlet 122. The first fan 6 allows air to enter through the air inlet 121, flow through the portion of the air-cooled radiator 5 located in the second compartment 12 and the liquid-cooled radiator 3, and then exit through the air outlet 122. This embodiment of the invention effectively dissipates heat from the first compartment by using both liquid cooling and air cooling radiators, achieving high heat dissipation efficiency and improving the power density of the string energy storage converter.

[0056] In some embodiments of this utility model, optionally, see [reference needed]. Figure 1 and Figure 2 As shown, the heat dissipation structure also includes:

[0057] The second fan 4 is located in the first compartment 11. The second fan 4 is used to circulate air in the first compartment 11 in the order of flowing through the cold plate 2, the part of the air-cooled heat dissipation radiator 5 located in the first compartment 11, and then flowing through the cold plate 2 again.

[0058] See details Figure 2 As shown, Figure 2 The hollow arrows indicate the airflow direction, clearly showing that the first compartment 11 and the second compartment 12 each have two types of air ducts. In the first compartment 11, the second fan 4 blows air, causing it to circulate within the first compartment 11 in the order of flowing through the cold plate 2, the portion of the air-cooled radiator 5 located in the first compartment 11, and then back through the cold plate 2, forming a circulating air duct. Under this circulating air duct, the air can absorb heat from various electronic devices along the way and conduct the absorbed heat to the portion of the air-cooled radiator 5 located in the first compartment 11. The air-cooled radiator 5 then conducts the heat from the first compartment 11 to the second compartment 12. In the second compartment 12, the first fan 6 causes air to enter through the air inlet 121, flow through the liquid-cooled radiator 3 and the portion of the air-cooled radiator 5 located in the second compartment 12, and then flow out through the air outlet 122, forming a direct-flow air duct. The DC air duct dissipates heat from the electronic components on the cold plate 2 carried out by the liquid-cooled radiator 3, and dissipates heat from the second compartment 12 carried out by the air-cooled radiator 5, achieving efficient heat dissipation.

[0059] The second fan 4 can be a blower fan. In this case, the second fan 4 is positioned close to the air-cooled radiator 5, and the airflow direction is away from the air-cooled radiator 5. After the second fan 4 blows air, it first passes through the cold plate 2 and then flows back to the location of the air-cooled radiator 5. Alternatively, the second fan 4 can be an exhaust fan. In this case, the second fan 4 is positioned close to the cold plate 2, and the exhaust direction is towards the cold plate 2, so that after exhaust, the air first flows through the cold plate 2 and then through the air-cooled radiator 5. Since the second fan 4 is located inside the first compartment 11, the air flows within the first compartment 11 under the drive of the second fan 4. By appropriately setting the position of the second fan 4 according to the positions of the cold plate 2 and the air-cooled radiator 5, the air can circulate within the first compartment in the order of flowing through the cold plate, the portion of the air-cooled radiator located in the first compartment, and then back through the cold plate.

[0060] In some embodiments of this utility model, optionally, see [reference needed]. Figure 2 As shown, the first compartment 11 has a first heat dissipation area 11a and a second heat dissipation area 11b formed by a partition 111, and also has at least two connecting openings that connect the first heat dissipation area 11a and the second heat dissipation area 11b.

[0061] The portions of the cold plate 2 and the air-cooled heat dissipation radiator 5 located in the first compartment 11 are both located in the first heat dissipation area 11a;

[0062] The second fan 4 is located in one of at least two connecting openings.

[0063] It should be noted that at least two connecting openings include the opening located at the bottom of the first heat dissipation area 11a (not in...). Figure 2 (As shown in the image), ensure the formation of a surrounding air duct.

[0064] In this embodiment of the invention, the heat generated in the first heat dissipation area 11a is higher than that in the second heat dissipation area 11b. Specifically, the first heat dissipation area 11a can be used to house electronic devices with high heat generation, and by combining liquid cooling and air cooling, the high heat generation electronic devices can be efficiently dissipated. The second heat dissipation area 11b can be used to house electronic devices with low heat generation, and because the heat generation is low, air cooling can achieve efficient heat dissipation.

[0065] In some embodiments of this utility model, optionally, see [reference needed]. Figure 1 and Figure 2 As shown, the second fan 4 and the portion of the air-cooled heat dissipation radiator 5 located in the first compartment 11 are positioned opposite each other, and the portion of the air-cooled heat dissipation radiator 5 located in the first compartment 11 is positioned between the second fan 4 and the cold plate 2.

[0066] In some embodiments of this utility model, optionally, the first heat dissipation area 11a is also used to house an electrolytic capacitor.

[0067] In some embodiments of this utility model, optionally, the second heat dissipation area 11b is used to house at least one electronic device selected from AC filter board, relay board, AC electromagnetic interference shielding EMI board, L inductor, signal board, power supply board, and DC contactor.

[0068] In some embodiments of this invention, the air-cooled heat dissipation radiator 5 optionally includes multiple metal heat dissipation fins arranged at intervals. Metal materials possess excellent thermal conductivity, and the air-cooled heat dissipation radiator 5, configured with multiple metal heat dissipation fins arranged at intervals, increases the heat exchange area between the air-cooled heat dissipation radiator 5 and the air, resulting in high heat dissipation efficiency.

[0069] In some embodiments of this utility model, optionally, the first electronic device 7 includes a reactor; and / or,

[0070] The second electronic device 8 includes a power module.

[0071] In some alternative embodiments, the reactor includes at least one of the following: a parallel reactor, a series reactor, a tuned reactor, an output reactor, an input reactor, a current-limiting reactor, an arc-suppression coil, a damping reactor, a smoothing reactor, and an inverter inductor.

[0072] In some alternative embodiments, the power module includes at least one of the following: an IGBT (Insulated Gate Bipolar Transistor) module and an intelligent power module (IPM).

[0073] In some embodiments of this utility model, optionally, the first electronic device 7 is a reactor, which is potted and disposed in the U-shaped groove of the cold plate, thereby increasing the contact area with the U-shaped groove 22 by utilizing the potting body, thereby enhancing the heat dissipation effect. Specifically, the reactor may include an inverter inductor, etc., and the second electronic device 8 is an IGBT module.

[0074] In some optional embodiments, see Figure 4 As shown, the first electronic device 7 is an inverter inductor, meaning that an inverter inductor is disposed within the U-shaped groove 22. The U-shaped groove 22 can also be filled with a colloid to create an insulating environment for the inverter inductor. In some optional embodiments, a colloid with both insulating and high thermal conductivity can be selected, allowing the heat from the inverter inductor to be more efficiently conducted to the cold plate 2, thus improving heat dissipation efficiency.

[0075] In practical applications, the inverter inductor is encapsulated in the cold plate 2, and the three sides of the inverter inductor are in close contact with the groove wall of the U-shaped groove 22 to ensure high heat dissipation efficiency.

[0076] In some embodiments of this utility model, optionally, see [reference needed]. Figure 1 , 3 As shown in Figure 4, the liquid-cooled radiator 3 includes:

[0077] The liquid storage tank 31 is used to store liquid heat transfer medium. The liquid outlet of the liquid storage tank 31 is connected to one end of the liquid cooling channel 21 through the first pipe 301.

[0078] The liquid-cooled heat dissipation radiator 32 has its liquid outlet end connected to the first pipe 301 through the second pipe 302, and its liquid inlet end connected to the other end of the liquid cooling flow channel 21.

[0079] Pumping device 33, located in the second pipeline 302, is used to pump liquid heat transfer medium into the liquid cooling channel 21.

[0080] In practical applications, users can control the flow rate of the liquid heat-conducting medium in the liquid cooling channel 21 by controlling the power of the pumping device 33, thereby controlling the heat dissipation efficiency. For example, when the energy storage converter is under low load, the electronic components generate little heat, and the user can reduce the power of the pumping device 33, thereby reducing the flow rate of the liquid heat-conducting medium and achieving energy savings. When the energy storage converter is under high load, the electronic components generate a lot of heat, and the user can increase the power of the pumping device 33, thereby increasing the flow rate of the liquid heat-conducting medium and quickly dissipating the heat from the electronic components.

[0081] This utility model provides an energy storage converter, including the heat dissipation structure of the energy storage converter described in any one of the embodiments of this utility model. Based on the high heat dissipation efficiency of the heat dissipation structure of the energy storage converter of this utility model, the energy storage converter of this utility model possesses high power density.

[0082] This utility model provides an integrated energy storage unit, including at least one energy storage converter as described in this utility model embodiment. Specifically, the integrated energy storage unit includes: a rack, and multiple energy storage converters mounted on the rack, wherein the multiple energy storage converters constitute a string energy storage converter in the energy storage system.

[0083] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims, and all of these forms are within the protection scope of the present invention.

Claims

1. A heat dissipation structure of an energy storage converter, characterized in that, The energy storage converter cooling structure comprises: a box body having a first chamber and a second chamber; a cold plate arranged in the first chamber, the cold plate being in a U shape, one side of the cold plate in the thickness direction being arranged to accommodate first electronic devices in the U-shaped groove, the other side of the cold plate in the thickness direction being arranged to accommodate second electronic devices outside the U-shaped groove, and the cold plate having a liquid cooling flow channel therein; a liquid cooling radiator arranged in the second chamber, an inlet end of the liquid cooling radiator being in communication with one end of the liquid cooling flow channel, and an outlet end of the liquid cooling radiator being in communication with the other end of the liquid cooling flow channel; an air cooling heat sink, a part of the air cooling heat sink extending into the first chamber, and the other part of the air cooling heat sink extending into the second chamber; a first fan arranged in the second chamber, the second chamber having an air inlet and an air outlet, the first fan being arranged to make air enter the air inlet, flow through the liquid cooling radiator and the part of the air cooling heat sink in the second chamber, and then flow out of the air outlet.

2. The heat dissipation structure of the energy storage converter according to claim 1, characterized in that, Further comprising: a second fan arranged in the first chamber, the second fan being arranged to make air circulate in the first chamber in the order of flowing through the cold plate, the part of the air cooling heat sink in the first chamber, and then flowing through the cold plate.

3. The energy storage converter cooling structure according to claim 2, wherein: the first chamber has a first heat dissipation area and a second heat dissipation area formed by a partition, and has at least two communication openings in communication with the first heat dissipation area and the second heat dissipation area; the cold plate and the part of the air cooling heat sink in the first chamber are located in the first heat dissipation area; the second fan is arranged in one of the at least two communication openings.

4. The heat dissipation structure of the energy storage converter according to claim 2, characterized in that, The second fan is arranged opposite to the part of the air cooling heat sink in the first chamber, and the part of the air cooling heat sink in the first chamber is located between the second fan and the cold plate.

5. The energy storage converter cooling structure according to claim 3, wherein: the first heat dissipation area is further arranged to accommodate electrolytic capacitors.

6. The energy storage converter cooling structure according to claim 3, wherein: the second heat dissipation area is arranged to accommodate at least one of the following electronic devices: an AC filter board, a relay board, an AC electromagnetic interference (EMI) shield board, an L inductor, a signal single board, a power supply board, and a DC contactor.

7. The energy storage converter cooling structure according to claim 1, wherein: the first electronic devices comprise reactors, and the reactors are arranged in the U-shaped groove of the cold plate in a potting manner; and / or the second electronic devices comprise power modules.

8. The energy storage converter cooling structure according to claim 1, wherein: the liquid cooling radiator comprises: a liquid storage tank for storing liquid heat-conducting medium, an outlet end of the liquid storage tank being in communication with one end of the liquid cooling flow channel through a first pipeline; a liquid cooling heat sink, an inlet end of the liquid cooling heat sink being in communication with the other end of the liquid cooling flow channel, and an outlet end of the liquid cooling heat sink being in communication with the first pipeline through a second pipeline. A pumping device is arranged in the second pipe for pumping liquid heat conducting medium to the liquid cooling channel.

9. An energy storage converter, characterized by A heat dissipation structure comprising the energy storage converter as claimed in any one of claims 1 to 8.

10. An energy storage all-in-one machine, characterized in that, An energy storage system comprising at least one energy storage converter as claimed in claim 9.

Images