Power module heat dissipation device and energy storage converter cabinet

Abstract

The utility model relates to a power module heat dissipation device and an energy storage converter cabinet. The power module heat dissipation device is used for the energy storage converter cabinet. The power module heat dissipation device comprises a fan assembly, wherein the fan assembly comprises a first air guide channel; the first air guide channel is provided with a first air inlet part and a first air outlet part. The power module heat dissipation assembly comprises an air guide shell and a power module heat dissipation device. The air guide shell is connected with the fan assembly, and the air guide shell communicates with the first air inlet part. The air guide shell comprises an open hole. The power module radiator comprises a heat conduction substrate and a heat dissipation part. The heat conduction substrate is connected with the air guide shell. The heat conduction substrate covers the opening. The heat conduction substrate is provided with a function module installation part. And the functional module mounting part is arranged corresponding to the opening. The heat dissipation part is arranged on the heat conduction substrate. The heat dissipation part is located in the air guide shell. The wind scooper comprises a second wind guiding channel. The second air guide channel is provided with a second air inlet part and a second air outlet part. And the air guide shell is connected with the air guide cover. The air guide shell communicates with the second air outlet part.

Description

Technical Field

[0001] This application relates to the technical field of energy storage, and particularly to a power module heat dissipation device and an energy storage converter cabinet. Background Art

[0002] A new power system with new energy as the main body is becoming an important choice for sustainable energy development. With the rapid development of new energy technologies, energy storage systems are being used more and more widely. An energy storage system may include, for example, an energy storage converter cabinet. An energy storage converter cabinet generally includes a power module and an electrical cabinet. Power conduction between the power module and the electrical cabinet is usually carried out through a power conduction component. The working reliability of the power module affects the working stability of the energy storage system. Therefore, how to improve the working reliability of the power module is one of the technical problems that those skilled in the art need to solve. Summary of the Utility Model

[0003] Embodiments of this application provide a power module heat dissipation device and an energy storage converter cabinet, which can effectively ensure the working reliability of the power module.

[0004] On the one hand, according to an embodiment of this application, a power module heat dissipation device for an energy storage converter cabinet is proposed. The power module heat dissipation device includes:

[0005] The fan assembly includes a first air guide channel. The first air guide channel has a first air inlet part and a first air outlet part. The power module heat dissipation assembly includes a wind guide housing and a power module radiator. The wind guide housing is connected to the fan assembly and is in communication with the first air inlet part. The wind guide housing includes an opening. The power module radiator includes a heat conducting substrate and a heat dissipation part. The heat conducting substrate is connected to the wind guide housing. The heat conducting substrate closes the opening. The heat conducting substrate has a functional module mounting part. The functional module mounting part is arranged corresponding to the opening. The heat dissipation part is arranged on the heat conducting substrate. The heat dissipation part is located inside the wind guide housing. The wind guide cover includes a second air guide channel. The second air guide channel has a second air inlet part and a second air outlet part. The wind guide housing is connected to the wind guide cover. The wind guide housing is in communication with the second air outlet part.

[0006] The heat dissipation device for a power module according to an embodiment of the present application includes a fan assembly, a power module heat dissipation assembly, and an air guide cover that are connected in sequence. When the power module in the energy storage converter cabinet is in a working state, the heat generated by the power module can be conducted to the power module heat dissipation assembly. When the fan assembly is in a working state, it can generate a suction force, so that the cooling gas (such as air) can enter from the air guide cover and flow through the air guide housing and the fan assembly in sequence, and finally be discharged from the fan assembly. The gas entering the air guide housing can flow through the heat dissipation part of the power module radiator and take away the heat released by the heat dissipation part to cool the heat dissipation part. The power module is arranged on the power module radiator in such a way that the power module is close to the power module radiator, so that the power module radiator can be used to effectively dissipate heat from the power module, so that the heat generated when the power module works can be dissipated in time, effectively improving the heat exchange efficiency and effectively avoiding the working environment temperature of the power module from being too high. Therefore, the heat dissipation device for a power module according to an embodiment of the present application has a relatively high heat exchange efficiency, which is beneficial to improving the heat dissipation effect, so that the working temperature of the power module remains stable, thereby ensuring the working reliability of the power module.

[0007] In some feasible ways, along the vertical direction, the power module heat dissipation assembly is arranged below the fan assembly.

[0008] The gas discharged from the first air outlet part of the fan assembly has a relatively high temperature itself. The gas with a higher temperature can relatively easily flow upward along the vertical direction. Therefore, the gas discharged from the first air outlet part of the fan assembly is not likely to accumulate around the power module heat dissipation assembly, and is not likely to re-enter the air guide cover either, which can be beneficial to reducing the adverse effect of the gas discharged from the first air outlet part of the fan assembly on the heat exchange efficiency of the power module heat dissipation device.

[0009] In some feasible ways, the fan assembly includes a fan cover and a first fan. The air guide housing is connected to the fan cover. The fan cover has a first air guide channel. The first fan is arranged in the first air guide channel. The bottom wall of the fan cover is provided with a first air inlet part. At least one first air outlet part is provided on the side wall of the fan cover.

[0010] The way of arranging the first air inlet part on the bottom wall of the fan cover facilitates the assembly and docking of the air guide housing located below the fan cover with the fan cover, which is beneficial to reducing the connection difficulty between the air guide housing and the fan cover.

[0011] In some feasible ways, the number of power module heat dissipation assemblies is more than two. In the horizontal direction, more than two power module heat dissipation assemblies are arranged at intervals.

[0012] Power modules can be respectively arranged corresponding to each power module heat dissipation assembly. Each power module heat dissipation assembly can dissipate heat from the corresponding power module separately, which is beneficial to ensuring the stable working temperature of each power module.

[0013] Each air guide housing can form a separate air duct. The air guide housing can achieve an air intake mode of bottom air intake and top air outlet. The first fan can perform air extraction for heat dissipation, so that the air extraction method of the first fan can ensure uniform air volume in each air guide housing, making the temperature difference between each power module arranged corresponding to each air guide housing relatively small.

[0014] In some feasible ways, along the vertical direction, the air guide cover is arranged below the power module heat dissipation assembly. The top wall of the air guide cover is provided with a second air outlet part. At least one second air inlet part is arranged on the side wall of the air guide cover.

[0015] The gas discharged from the first air outlet part of the fan assembly has a relatively high temperature itself. The gas with a relatively high temperature can flow upward along the vertical direction relatively easily. Along the vertical direction, the distance between the fan assembly and the air guide cover is relatively large. Therefore, the gas discharged from the first air outlet part of the fan assembly is not easy to re-enter the air guide cover, which can be beneficial to reducing the adverse impact of the gas discharged from the first air outlet part of the fan assembly on the heat exchange efficiency of the power module heat dissipation device.

[0016] In some feasible ways, the power module heat dissipation assembly further includes a seal, and a seal is arranged between the heat conduction substrate and the air guide housing.

[0017] The seal can seal the connection between the heat conduction substrate and the air guide housing, ensure the airtightness of the air duct in the air guide housing, and effectively reduce the possibility that gas leaks between the heat conduction substrate and the air guide housing and affects the heat exchange effect.

[0018] In some feasible ways, the power module heat dissipation assembly further includes a filtering component, and the filtering component is arranged on the air guide cover and corresponds to the second air inlet part.

[0019] The filtering component can be used to block dust or sundries from entering the air guide cover through the second air inlet part.

[0020] On the other hand, according to an embodiment of the present application, a power conversion and energy storage cabinet is provided, which includes a cabinet body, a power module heat dissipation device, a reactor heat dissipation device, and a heat exchange device. The power module heat dissipation device, the reactor heat dissipation device, and the heat exchange device are independently arranged. The power module heat dissipation device and the reactor heat dissipation device are both arranged in the cabinet body. The heat exchange device is arranged outside the cabinet body.

[0021] In the energy storage converter cabinet according to the embodiment of the present application, the power module heat dissipation device, the reactor heat dissipation device, and the heat exchange device are respectively used to dissipate heat from the corresponding devices alone, which is beneficial to improving the temperature control accuracy and enhancing the overall working reliability of the energy storage converter cabinet. The power module heat dissipation device and the reactor heat dissipation device are respectively used to dissipate heat from the power module and the reactor, so that separate heat dissipation for different devices can be achieved. The heat generation amounts of the power module and the reactor in their respective working states are different. Therefore, the method of separately dissipating heat from the power module and the reactor is beneficial to accurately controlling the temperature of the power module and the reactor and reducing the difficulty of temperature control. The heat generated by the power module and the reactor in the energy storage converter cabinet can be diffused through the power module heat dissipation device and the reactor heat dissipation device respectively. In the entire energy storage converter cabinet, the heat generated by the reactor is relatively large and is likely to affect other temperature-sensitive devices. Using the reactor heat dissipation device to independently dissipate heat from the reactor can easily control the temperature of the reactor itself and at the same time reduce the influence of the heat generated by the reactor on other temperature-sensitive devices. The heat generated by other devices in the energy storage converter cabinet can be exchanged with the external environment through the heat exchange device to achieve heat diffusion.

[0022] In some feasible ways, the reactor heat dissipation device includes a housing and a second fan. The housing includes a third air guide channel, and the third air guide channel has a third air inlet part and a third air outlet part. The energy storage converter cabinet further includes a reactor, and both the reactor and the second fan are arranged in the third air guide channel.

[0023] When the second fan is in a working state, the second fan can generate a suction force. Air can enter the third air guide channel through the third air inlet part of the housing. The gas flows under the guiding action of the third air guide channel and flows through the reactor to take away the heat generated by the reactor. Finally, the gas is discharged from the third air outlet part of the housing from the reactor heat dissipation device to achieve the heat diffusion of the reactor. By arranging the housing outside the reactor, the housing can force the relatively cool air to enter the housing and flow through the reactor for heat dissipation. Using an independent air duct to dissipate heat from the reactor can easily control the temperature of the reactor and reduce the influence of the reactor on other devices.

[0024] In some feasible ways, the bottom wall of the housing is provided with the third air inlet part, and at least one third air outlet part is provided on the side wall of the housing. Description of the Drawings

[0025] The features, advantages, and technical effects of the exemplary embodiments of the present application will be described below with reference to the drawings.

[0026] Figure 1 is a partial structural schematic diagram of the power module heat dissipation device according to an embodiment of the present application;

[0027] Figure 2It is a schematic diagram of the partial exploded structure of the fan assembly according to an embodiment of the present application;

[0028] Figure 3 It is a schematic diagram of the partial sectional structure of the fan assembly according to an embodiment of the present application;

[0029] Figure 4 It is a schematic diagram of the partial sectional structure of the power module heat dissipation assembly according to an embodiment of the present application;

[0030] Figure 5 It is a schematic diagram of the partial sectional structure of the connection state between the power module and the power module heat dissipation assembly according to an embodiment of the present application;

[0031] Figure 6 It is a schematic diagram of the partial structure of the air guide cover according to an embodiment of the present application;

[0032] Figure 7 It is a schematic diagram of the partial structure of the connection state between the air guide cover and the filter component according to an embodiment of the present application;

[0033] Figure 8 It is a schematic diagram of the partial structure of the energy storage converter cabinet according to an embodiment of the present application;

[0034] Figure 9 It is a schematic diagram of the partial structure of the energy storage converter cabinet according to an embodiment of the present application;

[0035] Figure 10 It is a schematic diagram of the partial structure of the energy storage converter cabinet according to an embodiment of the present application;

[0036] Figure 11 It is a schematic diagram of the partial structure of the reactor heat dissipation device according to an embodiment of the present application;

[0037] Figure 12 It is a schematic diagram of the partial sectional structure of the connection state between the reactor and the reactor heat dissipation device according to an embodiment of the present application;

[0038] Figure 13 It is a schematic diagram of the partial sectional structure of the heat exchange device according to an embodiment of the present application.

[0039] In the drawings, the same components are denoted by the same reference numerals. The drawings are not drawn to actual scale.

[0040] Description of reference numerals:

[0041] 10. Power module heat dissipation device;

[0042] 20. Fan assembly; 201. Fan cover; 202. First fan;

[0043] 21. First air guide channel; 211. First air inlet part; 212. First air outlet part;

[0044] 22. Dust filter net;

[0045] 30. Power module heat dissipation assembly;

[0046] 31. Air guide housing; 311. Opening;

[0047] 32. Power module radiator; 321. Heat dissipation part; 322. Heat conduction substrate;

[0048] 33. Sealing element;

[0049] 40. Air guide cover;

[0050] 41. Second air guide channel; 411. Second air inlet part; 412. Second air outlet part;

[0051] 50. Filter component;

[0052] 100. Energy storage converter cabinet;

[0053] 110. Reactor heat dissipation device;

[0054] 111. Outer shell; 1111. Third air guide channel; 111a. Third air inlet part; 111b. Third air outlet part;

[0055] 112. Second fan;

[0056] 120. Cabinet body; 121. First ventilation window; 122. Second ventilation window; 123. Third ventilation window;

[0057] 130. Heat exchange device; 131. Outer circulation air duct; 132. Inner circulation air duct; 133. Heat conduction isolation part;

[0058] 140. Power module;

[0059] 150. Reactor;

[0060] X. Vertical direction;

[0061] Y. Horizontal direction. Detailed implementation manners

[0062] The following further describes in detail the implementation manners of the present application in conjunction with the accompanying drawings and embodiments. The following detailed description of the embodiments and the accompanying drawings are used to exemplarily illustrate the principle of the present application, but cannot be used to limit the scope of the present application, that is, the present application is not limited to the described embodiments.

[0063] In the description of the present application, it should be noted that unless otherwise specified, the meaning of "a plurality of" is two or more; the orientation or positional relationship indicated by the terms "upper", "lower", "left", "right", "inner", "outer", etc. is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as a limitation to the present application. In addition, the terms "first", "second", "third", etc. are only used for descriptive purposes and should not be construed as indicating or implying relative importance. "Vertical" is not strictly vertical, but within the allowable error range. "Parallel" is not strictly parallel, but within the allowable error range.

[0064] The mention of "embodiment" in the present application means that the specific features, structures or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The appearance of this phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described in the present application may be combined with other embodiments.

[0065] The orientation words appearing in the following description are all the directions shown in the figures and do not limit the specific structure of the present application. In the description of the present application, it should also be noted that unless otherwise clearly specified and limited, the terms "mounted", "connected" and "coupled" should be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or an integral connection; it may be directly connected or indirectly connected through an intermediate medium. For those of ordinary skill in the art, the specific meanings of the above terms in the present application may be understood according to specific circumstances.

[0066] In the related art, with the rapid development of new energy and the progress of power electronics technology, the power of energy storage systems is getting larger and larger. Currently, there is a requirement to minimize the volume of the energy storage system, which is beneficial to improving the energy density of the energy storage system. The energy storage system may include, for example, a battery energy storage converter cabinet. The battery energy storage converter cabinet includes power modules. For example, the power module may be an insulated gate bipolar transistor (IGBT) module. The power module has two different operating conditions: rectification and inversion when it is working. A large amount of heat is generated when the power module is in the working state. If the heat cannot be dissipated in time, it will cause the working temperature of the power module to be too high, affecting the working reliability of the power module. The excessive temperature causes the performance of the power module to decline, and in severe cases, it will lead to the damage of the power module.

[0067] The energy storage converter cabinet according to the embodiment of the present application includes a power module heat dissipation device for dissipating heat from the power module. The power module heat dissipation device can effectively dissipate heat from the power module. The power module heat dissipation device according to the embodiment of the present application has a relatively high heat exchange efficiency, which is beneficial to improving the heat dissipation effect, so that the working temperature of the power module remains stable, thereby ensuring the working reliability of the power module.

[0068] The energy storage system according to the embodiment of the present application can be used to achieve power output and energy storage functions. The energy storage system according to the embodiment of the present application may include an electric cabinet. The electric cabinet is a device for realizing electric energy storage. A battery is provided in the electric cabinet. The battery can realize the storage of electric energy.

[0069] The energy storage system according to the embodiment of the present application can be, but is not limited to, used as an energy storage cabinet or an energy storage station in new energy power systems such as wind energy, solar energy, and water energy. The energy storage system according to the embodiment of the present application includes a power module. The power module is a component that can be used to achieve power output. The power module includes, but is not limited to, thyristors and insulated gate bipolar transistor modules.

[0070] Figure 1 Schematically shows a partial structure of the power module heat dissipation device 10. Figure 2 Schematically shows a partial exploded structure of the fan assembly 20. Figure 3 Schematically shows a partial cross-sectional structure of the fan assembly 20. Refer to Figure 1 、 Figure 2 and Figure 3 As shown in, the power module heat dissipation device 10 according to the embodiment of the present application can be used for an energy storage converter cabinet. The energy storage converter cabinet includes a power module. The power module heat dissipation device 10 is used to dissipate heat from the power module.

[0071] The power module heat dissipation device 10 includes a fan assembly 20. The fan assembly 20 includes a first air guiding channel 21. The first air guiding channel 21 has a first air inlet portion 211 and a first air outlet portion 212. When the fan assembly 20 works, gas can enter the first air guiding channel 21 through the first air inlet portion 211. Under the guiding action of the first air guiding channel 21, the gas can flow to the first air outlet portion 212 and be discharged from the first air outlet portion 212 of the fan assembly 20. The first air outlet portion 212 of the fan assembly 20 can communicate with the external environment, so that the gas discharged from the first air outlet portion 212 can directly enter the external environment and dissipate. Exemplarily, the number of the fan assemblies 20 can be one or more than two, and the embodiment of the present application does not make a specific limitation on this.

[0072] Figure 4 Schematically shows a partial cross-sectional structure of the power module heat dissipation assembly 30. Refer to Figure 4As shown, the power module heat dissipation device 10 includes a power module heat dissipation assembly 30. The power module heat dissipation assembly 30 includes a wind guiding housing 31 and a power module radiator 32. The wind guiding housing 31 is connected to the fan assembly 20, and the wind guiding housing 31 is in communication with the first air inlet part 211 of the fan assembly 20, so that the internal space of the wind guiding housing 31 is in communication with the first air guiding channel 21. The power module radiator 32 is connected to the wind guiding housing 31. The power module radiator 32 includes a heat dissipation part 321. The heat dissipation part 321 is located inside the wind guiding housing 31.

[0073] Figure 5 Schematically shows a partial cross-sectional structure of the connection state between the power module 140 and the power module heat dissipation assembly 30. Refer to Figure 5 As shown, when the power module radiator 32 is applied to the energy storage converter cabinet, the power module 140 can be connected to the power module radiator 32. The heat generated when the power module 140 works can be conducted to the power module radiator 32. The heat absorbed by the power module radiator 32 can be conducted to the internal space of the wind guiding housing 31 through the heat dissipation part 321. When the fan assembly 20 works, the gas with relatively low temperature can enter the internal space of the wind guiding housing 31 and flow through the heat dissipation part 321 to take away the heat released by the heat dissipation part 321. The gas with increased temperature is discharged from the wind guiding housing 31. The gas discharged from the wind guiding housing 31 enters the first air guiding channel 21 of the fan assembly 20 through the first air inlet part 211 and is finally discharged to the external environment from the first air outlet part 212 to achieve heat dissipation. Therefore, the heat generated when the power module 140 works can be dissipated through the power module heat dissipation assembly 30 and the fan assembly 20, reducing the temperature of the working environment of the power module 140 itself.

[0074] In some implementable ways, the power module radiator 32 is detachably connected to the wind guiding housing 31, which is convenient for maintaining or replacing the power module radiator 32.

[0075] In some implementable ways, the wind guiding housing 31 can be manufactured by splicing sheet metal parts.

[0076] In some implementable ways, the heat dissipation part 321 can include more than two heat dissipation fins. The more than two heat dissipation fins are arranged at intervals. The gap between the heat dissipation fins can allow the gas to flow through, which is beneficial to reducing the number of direction changes of the cooling gas in the wind guiding housing 31, and further beneficial to reducing the flow resistance of the gas in the wind guiding housing 31 and improving the heat exchange efficiency.

[0077] In some implementable ways, refer to Figure 4 and Figure 5As shown, the air guiding housing 31 in the power module heat dissipation assembly 30 includes an opening 311. The opening 311 of the air guiding housing 31 is in communication with the internal space of the air guiding housing 31. The power module heat sink 32 includes a heat conducting substrate 322. The heat conducting substrate 322 is connected to the air guiding housing 31. The heat conducting substrate 322 has a functional module mounting portion (not shown in the figure). The functional module mounting portion is used to mount and fix the power module 140. The heat conducting substrate 322 closes the opening 311 of the air guiding housing 31. The functional module mounting portion is arranged corresponding to the opening 311. The functional module mounting portion can be arranged on the surface of the heat conducting substrate 322 facing away from the internal space of the air guiding housing 31. The heat dissipation portion 321 is arranged on the heat conducting substrate 322.

[0078] The heat conducting substrate 322 is a plate-like structural member. The heat conducting substrate 322 itself has good heat conduction performance. Exemplarily, the material of the heat conducting substrate 322 can be but is not limited to copper or copper alloy. The heat generated by the functional module connected to the functional module mounting portion can be conducted to the heat conducting substrate 322. The heat conducting substrate 322 can absorb heat and conduct the heat to the heat dissipation portion 321.

[0079] In the embodiment of the present application, the power module 140 is arranged on the power module heat sink 32 in such a way that the power module 140 is arranged close to the power module heat sink 32, so that the power module heat sink 32 can be used to effectively dissipate heat from the power module 140, so that the heat generated when the power module 140 works can be dissipated in time, effectively improving the heat exchange efficiency and effectively avoiding the working environment temperature of the power module 140 from being too high.

[0080] In some examples, the side wall of the air guiding housing 31 is provided with an opening 311. The air guiding housing 31 can include four side walls. An opening 311 is provided on one side wall of the air guiding housing 31. Exemplarily, the number of the air guiding housing 31 is two or more. Among two adjacent air guiding housing 31, the opening 311 of one air guiding housing 31 is not arranged face to face with the opening 311 of the other air guiding housing 31.

[0081] In some examples, the power module heat dissipation assembly 30 further includes a seal 33. A seal 33 is arranged between the heat conducting substrate 322 and the air guiding housing 31. The seal 33 can seal the connection between the heat conducting substrate 322 and the air guiding housing 31, ensure the airtightness of the air duct in the air guiding housing 31, and effectively reduce the possibility that gas leaks between the heat conducting substrate 322 and the air guiding housing 31 and affects the heat exchange effect.

[0082] Exemplarily, the material of the seal 33 can be but is not limited to rubber or silica gel. For example, the seal 33 can be an annular rubber sealing ring. There is an overlapping area between the heat conducting substrate 322 and the air guiding housing 31. The seal 33 is arranged in the overlapping area. The heat conducting substrate 322 and the air guiding housing 31 in the connected state can jointly squeeze the seal 33.

[0083] Figure 6 Schematically shows a partial structure of the air guide cover 40. Refer to Figure 1 and Figure 6 As shown, the power module heat dissipation device 10 includes an air guide cover 40. The air guide cover 40 includes a second air guide channel 41. The second air guide channel 41 has a second air inlet part 411 and a second air outlet part 412. The air guide housing 31 is connected to the air guide cover 40. The air guide housing 31 is in communication with the second air outlet part 412, so that the internal space of the air guide housing 31 is in communication with the second air guide channel 41.

[0084] Gas can enter the second air guide channel 41 through the second air inlet part 411. Under the guiding action of the second air guide channel 41, the gas can flow to the second air outlet part 412 and be discharged from the air guide cover 40 through the second air outlet part 412. The function of the air guide cover 40 is to guide the gas to converge and flow. The air guide cover 40 is an empty shell structure. No relevant electronic devices (such as reactors, etc.) are provided inside the air guide cover 40 to reduce the possibility that the added electronic devices increase the gas flow resistance and affect the fluidity of the gas in the air guide cover 40. The second air inlet part 411 of the air guide cover 40 can be in communication with the external environment, so that the air in the external environment can enter the second air guide channel 41 through the second air inlet part 411.

[0085] When the fan assembly 20 is in the working state, the fan assembly 20 can generate a suction force. The air in the external environment can enter the second air guide channel 41 through the second air inlet part 411 of the air guide cover 40. The gas flows under the guiding action of the second air guide channel 41 and enters the air guide housing 31 from the second air outlet part 412. The gas flows through the heat dissipation part 321 of the power module radiator 32 to take away the heat on the heat dissipation part 321. The gas is discharged from the air guide housing 31 and enters the first air guide channel 21 through the first air inlet part 211 of the fan assembly 20. The gas flows under the guiding action of the first air guide channel 21 and is finally discharged from the fan assembly 20 through the first air outlet part 212 to achieve heat dissipation.

[0086] In some realizable ways, the air guide cover 40 can be manufactured by splicing sheet metal parts.

[0087] The power module heat dissipation device 10 according to the embodiment of the present application includes a fan assembly 20, a power module heat dissipation assembly 30, and a wind guide cover 40 that are connected in sequence. When the power module 140 in the energy storage converter cabinet is in a working state, the heat generated by the power module 140 can be conducted to the power module heat dissipation assembly 30. When the fan assembly 20 is in a working state, a suction force can be generated, so that the cooling gas (such as air) can enter from the wind guide cover 40 and flow through the wind guide housing 31 and the fan assembly 20 in sequence, and finally be discharged from the fan assembly 20. The gas entering the wind guide housing 31 can flow through the heat dissipation part 321 of the power module radiator 32 and take away the heat released by the heat dissipation part 321 to cool the heat dissipation part 321. The power module 140 is arranged on the power module radiator 32 in such a way that the power module 140 is arranged close to the power module radiator 32, so that the power module radiator 32 can be used to effectively dissipate the heat of the power module 140, so that the heat generated when the power module 140 works can be dissipated in time, so as to effectively improve the heat exchange efficiency and effectively avoid the working environment temperature of the power module 140 being too high. Therefore, the power module heat dissipation device 10 according to the embodiment of the present application has a relatively high heat exchange efficiency, which is beneficial to improving the heat dissipation effect, so that the working temperature of the power module 140 is kept stable, thereby ensuring the working reliability of the power module 140.

[0088] In some realizable ways, referring to Figure 1 As shown, along the vertical direction X, the power module heat dissipation assembly 30 is arranged below the fan assembly 20. The gas discharged from the first air outlet 212 of the fan assembly 20 has a relatively high temperature itself. The gas with a higher temperature can flow upward along the vertical direction X relatively easily. Therefore, the gas discharged from the first air outlet 212 of the fan assembly 20 is not easy to accumulate around the power module heat dissipation assembly 30, and is not easy to re-enter the wind guide cover 40 either, so as to be beneficial to reducing the adverse effect of the gas discharged from the first air outlet 212 of the fan assembly 20 on the heat exchange efficiency of the power module heat dissipation device 10.

[0089] In some examples, referring to Figure 2 and Figure 3 As shown, the fan assembly 20 includes a fan cover 201 and a first fan 202. The wind guide housing 31 is connected to the fan cover 201. The fan cover 201 has a first air guide channel 21. The first fan 202 is arranged in the first air guide channel 21. When the first fan 202 works, a suction force can be generated. One or more than two first fans 202 can be arranged in the first air guide channel 21. The bottom wall of the fan cover 201 is provided with a first air inlet 211. At least one first air outlet 212 is arranged on the side wall of the fan cover 201, so that the fan cover 201 can realize side air outlet. The air inlet direction of the first air inlet 211 and the air outlet direction of the first air outlet 212 can be different.

[0090] The way of arranging the first air inlet part 211 on the bottom wall of the fan cover 201 facilitates the assembly and docking of the air guide housing 31 located below the fan cover 201, which is beneficial to reducing the connection difficulty between the air guide housing 31 and the fan cover 201.

[0091] In some examples, the fan cover 201 can be manufactured by splicing sheet metal parts.

[0092] In some examples, two first air outlet parts 212 are arranged on the side wall of the fan cover 201. In the horizontal direction Y, the first air outlet parts 212 are respectively arranged on the opposite side walls of the fan cover 201, which is beneficial to improving the exhaust efficiency of the fan assembly 20 and accelerating heat dissipation. Exemplarily, one first air outlet part 212 is respectively arranged on the opposite side walls of the fan cover 201.

[0093] In some examples, the bottom wall and the side wall of the fan cover 201 are perpendicular. The top wall and the bottom wall of the fan cover 201 are parallel. The first fan 202 is arranged between the top wall and the bottom wall. The fan cover 201 can include four side walls. One first air outlet part 212 is respectively arranged on the opposite side walls of the fan cover 201.

[0094] In some examples, refer to Figure 1 As shown, the fan assembly 20 further includes a dust filter net 22. The dust filter net 22 is arranged corresponding to the first air outlet part 212. The dust filter net 22 can be used to block dust or sundries from entering the fan assembly 20 through the first air outlet part 212.

[0095] In some examples, the first fan 202 can be a centrifugal fan or an axial flow fan.

[0096] In some realizable ways, refer to Figure 1 As shown, the number of the power module heat dissipation assemblies 30 is more than two. In the horizontal direction Y, the more than two power module heat dissipation assemblies 30 are arranged at intervals. The more than two power module heat dissipation assemblies 30 are independently arranged. There is a spacing between two adjacent power module heat dissipation assemblies 30 in the horizontal direction Y. A power module 140 can be respectively arranged corresponding to each power module heat dissipation assembly 30. Each power module heat dissipation assembly 30 can dissipate heat from the corresponding power module 140 separately, which is beneficial to ensuring the stable operating temperature of each power module 140.

[0097] Each air guide housing 31 can form an independent air duct. The air guide housing 31 can realize an air inlet mode of lower air inlet and upper air outlet. The first fan 202 can perform air extraction for heat dissipation. Thus, the air extraction method of the first fan 202 can ensure uniform air volume of each air guide housing 31, making the temperature difference between the respective power modules 140 arranged corresponding to each air guide housing 31 smaller.

[0098] In some examples, the number of the blower covers 201 can be one. The bottom wall of the blower cover 201 can be provided with more than two first air inlet parts 211. The number of the first air inlet parts 211 is the same as that of the air guiding housings 31. One first air inlet part 211 is arranged corresponding to one air guiding housing 31.

[0099] In some examples, the number of the power module heat dissipation assemblies 30 can be three.

[0100] In some examples, referring to Figure 1 and Figure 6 As shown, along the vertical direction X, the air guiding cover 40 is arranged below the power module heat dissipation assembly 30. Along the vertical direction X, the blower assembly 20, the power module heat dissipation assembly 30 and the air guiding cover 40 can be arranged in sequence from top to bottom. The power module heat dissipation assembly 30 can be arranged between the blower assembly 20 and the air guiding cover 40. The top wall of the air guiding cover 40 is provided with a second air outlet part 412. At least one second air inlet part 411 is arranged on the side wall of the air guiding cover 40, so that the air guiding cover 40 can achieve side air inlet. The air inlet direction of the second air inlet part 411 and the air outlet direction of the second air outlet part 412 can be different.

[0101] The gas discharged from the first air outlet part 212 of the blower assembly 20 has a relatively high self-temperature. The gas with a relatively high temperature can flow upward along the vertical direction X relatively easily. Along the vertical direction X, the distance between the blower assembly 20 and the air guiding cover 40 is relatively large. Therefore, the gas discharged from the first air outlet part 212 of the blower assembly 20 is not easy to re-enter the air guiding cover 40, which is beneficial to reducing the adverse effect of the gas discharged from the first air outlet part 212 of the blower assembly 20 on the heat exchange efficiency of the power module heat dissipation device 10.

[0102] In some examples, one second air inlet part 411 can be arranged on the side wall of the air guiding cover 40.

[0103] In some examples, the bottom wall and the side wall of the air guiding cover 40 are perpendicular to each other. The top wall and the bottom wall of the air guiding cover 40 are parallel to each other. The air guiding cover 40 can include four side walls. A second air inlet part 411 can be arranged on one side wall of the air guiding cover 40.

[0104] In some examples, referring to Figure 6 As shown, the number of the power module heat dissipation assemblies 30 can be more than two. The top wall of the air guiding cover 40 can be provided with more than two second air outlet parts 412. The number of the second air outlet parts 412 is the same as that of the air guiding housings 31. One second air outlet part 412 is arranged corresponding to one air guiding housing 31.

[0105] In some examples, Figure 7 The partial structure schematically showing the connection state of the air guiding cover 40 and the filtering component is shown. Referring to Figure 7As shown, the power module heat dissipation assembly 30 further includes a filtering component 50. The filtering component 50 is disposed in the air guide cover 40. The filtering component 50 corresponds to the second air inlet portion 411. The filtering component 50 can be used to block dust or debris from entering the air guide cover 40 through the second air inlet portion 411. Exemplarily, the filtering component 50 includes filter cotton.

[0106] Figure 8 Schematically shows a partial structure of the energy storage converter cabinet 100. Refer to Figure 8 As shown, an embodiment of the present application provides an energy storage converter cabinet 100. The energy storage converter cabinet 100 can be used to control the charging and discharging processes of the battery and perform the conversion between AC and DC. The energy storage converter cabinet 100 may include a power module heat dissipation device 10. The power module heat dissipation device 10 can effectively dissipate heat from the power module 140 to ensure the working reliability of the power module 140, thereby ensuring the overall working reliability of the energy storage converter cabinet 100.

[0107] In some implementable ways, Figure 9 Schematically shows a partial structure of the energy storage converter cabinet 100. Refer to Figure 8 and Figure 9 As shown, the energy storage converter cabinet 100 further includes a reactor heat dissipation device 110. The power module heat dissipation device 10 and the reactor heat dissipation device 110 are independently arranged. The power module heat dissipation device 10 and the reactor heat dissipation device 110 are spaced apart from each other. The power module heat dissipation device 10 and the reactor heat dissipation device 110 are respectively used to dissipate heat from the power module 140 and the reactor, so that separate heat dissipation for different devices can be achieved. The heat generation amounts of the power module 140 and the reactor in their respective working states are different. Therefore, the method of separately dissipating heat from the power module 140 and the reactor is beneficial to precisely control the temperature of the power module 140 and the reactor and reduce the difficulty of temperature control.

[0108] In the entire energy storage converter cabinet 100, the heat generated by the reactor is relatively large and is likely to affect other temperature-sensitive components. Using the reactor heat dissipation device 110 to independently dissipate heat from the reactor can easily control the temperature of the reactor itself and at the same time reduce the influence of the heat generated by the reactor on other temperature-sensitive components.

[0109] In some examples, along the vertical direction X, the power module heat dissipation device 10 can be disposed above the reactor heat dissipation device 110.

[0110] In some examples, the energy storage converter cabinet 100 further includes a cabinet body 120. The power module heat dissipation device 10 and the reactor heat dissipation device 110 are both disposed within the cabinet body 120. The cabinet body 120 can protect the internal components, the power module heat dissipation device 10, and the reactor heat dissipation device 110, which is beneficial to reducing the possibility of structural damage to the internal components, the power module heat dissipation device 10, and the reactor heat dissipation device 110.

[0111] In some examples, Figure 10 Schematically shows a partial structure of the energy storage converter cabinet 100. Refer to Figure 9 and Figure 10 As shown, the cabinet body 120 includes a first ventilation window 121. The first air outlet portion 212 of the fan assembly 20 is disposed corresponding to the first ventilation window 121 of the cabinet body 120. Exemplarily, in the horizontal direction Y, the cabinet body 120 includes two opposite side walls. The two opposite side walls are both provided with the first ventilation window 121. Exemplarily, the fan assembly 20 includes two first air outlet portions 212. One first air outlet portion 212 is disposed corresponding to one first ventilation window 121, and the other first air outlet portion 212 is disposed corresponding to the other first ventilation window 121. Exemplarily, the front and back of the cabinet body 120 are respectively provided with the first ventilation window 121. Exemplarily, along the vertical direction X, the first ventilation window 121 is provided at a position near the top of the cabinet body 120.

[0112] The cabinet body 120 includes a second ventilation window 122. The second air inlet portion 411 of the air guide cover 40 is disposed corresponding to the second ventilation window 122 of the cabinet body 120. Exemplarily, the second ventilation window 122 is provided on the side wall of the cabinet body 120. For example, the second ventilation window 122 is provided on the back of the cabinet body 120. Exemplarily, along the vertical direction X, the second ventilation window 122 can be provided at an intermediate position of the cabinet body 120.

[0113] In some examples, Figure 11 Schematically shows a partial structure of the reactor heat dissipation device 110. Figure 12 Schematically shows a partial cross-sectional structure of the connection state between the reactor and the reactor heat dissipation device 110. Refer to Figure 11 and Figure 12 As shown, the energy storage converter cabinet 100 further includes a reactor 150 and a reactor heat dissipation device 110. The reactor heat dissipation device 110 includes a housing 111 and a second fan 112. The housing 111 includes a third air guide channel 1111. The third air guide channel 1111 has a third air inlet portion 111a and a third air outlet portion 111b. The reactor 150 and the second fan 112 are both disposed within the third air guide channel 1111. One or more than two second fans 112 can be disposed within the third air guide channel 1111.

[0114] When the second fan 112 is in an operating state, the second fan 112 can generate a suction force. Air can enter the third air guiding channel 1111 through the third air inlet part 111a of the housing 111. The gas flows under the guiding action of the third air guiding channel 1111 and passes through the reactor 150 to carry away the heat generated by the reactor 150. Finally, the gas is discharged from the third air outlet part 111b of the housing 111 from the reactor heat dissipation device 110 to achieve heat dissipation of the reactor 150. By arranging the housing 111 outside the reactor 150, the housing 111 can force the cooler air to enter the housing 111 and flow through the reactor 150 for heat dissipation. Using an independent air duct to dissipate heat from the reactor 150 can easily control the temperature of the reactor 150 and reduce the influence of the reactor 150 on other devices.

[0115] In some examples, the bottom wall of the housing 111 is provided with the third air inlet part 111a. At least one third air outlet part 111b is provided on the side wall of the housing 111, so that the housing 111 can achieve side air outlet. The air inlet direction of the third air inlet part 111a and the air outlet direction of the third air outlet part 111b can be different. Exemplarily, the bottom wall and the side wall of the housing 111 are perpendicular. The top wall and the bottom wall of the housing 111 are parallel. The housing 111 can include four side walls. A second air inlet part 411 is provided on one side wall of the housing 111.

[0116] In some examples, the housing 111 can be manufactured by splicing sheet metal parts.

[0117] In some examples, the second fan 112 can be an axial flow fan.

[0118] In some examples, refer to Figure 10 As shown, the cabinet body 120 includes a third ventilation window 123. The third air outlet part 111b of the housing 111 is arranged corresponding to the third ventilation window 123 of the cabinet body 120. Exemplarily, the third ventilation window 123 is provided on the side wall of the cabinet body 120. For example, the third ventilation window 123 is provided on the front surface of the cabinet body 120.

[0119] In some realizable ways, refer to Figure 8 As shown, the energy storage converter cabinet 100 further includes a heat exchange device 130. The heat exchange device 130 is arranged outside the cabinet body 120. The power module heat dissipation device 10, the reactor heat dissipation device 110 and the heat exchange device 130 are each independently arranged. The power module heat dissipation device 10, the reactor heat dissipation device 110 and the heat exchange device 130 are independent of each other in function and structure and do not interfere with each other.

[0120] The heat generated by the power module 140 and the reactor 150 in the energy storage converter cabinet 100 can be dissipated through the power module heat dissipation device 10 and the reactor heat dissipation device 110 respectively. The heat generated by other devices in the energy storage converter cabinet 100 can be exchanged with the external environment through the heat exchange device 130 to achieve heat dissipation.

[0121] In the energy storage converter cabinet 100 of the embodiment of the present application, the corresponding devices are separately cooled by the power module heat dissipation device 10, the reactor heat dissipation device 110 and the heat exchange device 130, which is beneficial to improving the temperature control accuracy and enhancing the overall working reliability of the energy storage converter cabinet 100.

[0122] In some examples, Figure 13 Schematically shows a partial cross-sectional structure of the heat exchange device 130. Refer to Figure 8 and Figure 13 As shown, the heat exchange device 130 includes an outer circulation air duct 131, an inner circulation air duct 132 and a heat conduction isolation member 133. The heat conduction isolation member 133 separates the outer circulation air duct 131 and the inner circulation air duct 132, so that the outer circulation air duct 131 and the inner circulation air duct 132 are not communicated with each other. The outer circulation air duct 131 is communicated with the external environment, so that air with a relatively low temperature can enter the heat exchange device 130. The inner circulation air duct 132 is communicated with the space inside the cabinet body 120, so that air with a relatively high temperature enters the heat exchange device 130. The air with a relatively low temperature and the air with a relatively high temperature exchange heat through the heat conduction isolation member 133. The air with a relatively low temperature discharged from the inner circulation air duct 132 can re-enter the space inside the cabinet body 120. The air with a relatively high temperature discharged from the outer circulation air duct 131 can enter the external environment to achieve heat dissipation. Fans can be arranged in the outer circulation air duct 131 and the inner circulation air duct 132 to improve the gas circulation efficiency.

[0123] The embodiment of the present application provides an energy storage converter cabinet 100. The energy storage converter cabinet 100 includes a cabinet body 120, a power module heat dissipation device 10, a reactor heat dissipation device 110 and a heat exchange device 130. The power module heat dissipation device 10, the reactor heat dissipation device 110 and the heat exchange device 130 are independently arranged. The power module heat dissipation device 10 and the reactor heat dissipation device 110 are both arranged inside the cabinet body 120. The heat exchange device 130 is arranged outside the cabinet body 120.

[0124] Although the present application has been described with reference to the preferred embodiments, various improvements can be made to it and the components therein can be replaced with equivalents without departing from the scope of the present application. In particular, as long as there is no structural conflict, the various technical features mentioned in each embodiment can be combined in any way. The present application is not limited to the specific embodiments disclosed in the text, but includes all technical solutions falling within the scope of the claims.

Claims

1. A power module heat dissipation device for an energy storage converter cabinet, characterized in that, The power module heat dissipation device includes: A fan assembly, including a first air guide channel, the first air guide channel having a first air inlet and a first air outlet; A power module heat dissipation assembly, including an air guide housing and a power module radiator, the air guide housing being connected to the first air inlet, the air guide housing including an opening, the power module radiator including a heat conducting substrate and a heat dissipation part, the heat conducting substrate being connected to the air guide housing, the heat conducting substrate covering the opening, the heat conducting substrate having a functional module mounting part, the functional module mounting part being arranged corresponding to the opening, the heat dissipation part being arranged on the heat conducting substrate, and the heat dissipation part being located inside the air guide housing; An air guide cover, including a second air guide channel, the second air guide channel having a second air inlet and a second air outlet, the air guide housing being connected to the air guide cover, and the air guide housing being connected to the second air outlet.

2. The heat dissipation device for a power module according to claim 1, wherein, In the vertical direction, the power module heat dissipation assembly is arranged below the fan assembly.

3. The heat dissipation device for a power module according to claim 2, wherein The fan assembly includes a fan housing and a first fan, the air guide housing being connected to the fan housing, the fan housing having the first air guide channel, the first fan being arranged in the first air guide channel, the bottom wall of the fan housing being provided with the first air inlet, and at least one of the first air outlets being provided on the side wall of the fan housing.

4. The power module heat dissipation device according to claim 2, characterized in that, The number of the power module heat dissipation assemblies is two or more, and in the horizontal direction, two or more of the power module heat dissipation assemblies are arranged at intervals.

5. The power module heat dissipation device according to claim 1, characterized in that, In the vertical direction, the air guide cover is arranged below the power module heat dissipation assembly, the top wall of the air guide cover being provided with the second air outlet, and at least one of the second air inlets being provided on the side wall of the air guide cover.

6. The heat dissipation device for a power module according to claim 1, characterized in that, The power module heat dissipation assembly further includes a seal, and the seal is arranged between the heat conducting substrate and the air guide housing.

7. The power module heat dissipation device according to any one of claims 1 to 6, characterized in that The power module heat dissipation assembly further includes a filtering component, the filtering component being arranged on the air guide cover, and the filtering component being arranged corresponding to the second air inlet.

8. A energy storage converter cabinet, characterized in that, Including: A cabinet body, a power module heat dissipation device, a reactor heat dissipation device, and a heat exchange device; The power module heat dissipation device, the reactor heat dissipation device, and the heat exchange device are each independently arranged, the power module heat dissipation device and the reactor heat dissipation device are both arranged inside the cabinet body, and the heat exchange device is arranged outside the cabinet body.

9. The energy storage converter cabinet according to claim 8, characterized in that, The reactor heat dissipation device includes a housing and a second fan, the housing including a third air guide channel, the third air guide channel having a third air inlet and a third air outlet, the energy storage converter cabinet further including a reactor, and the reactor and the second fan are both arranged in the third air guide channel.

10. The energy storage converter cabinet according to claim 9, characterized in that, The bottom wall of the housing is provided with the third air inlet, and at least one of the third air outlets is provided on the side wall of the housing.

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