A pluggable IGBT heat dissipation module for energy storage converter

Abstract

This utility model relates to the field of heat dissipation technology for energy storage converters, specifically to a pluggable IGBT heat dissipation module for energy storage converters. It includes a base plate with multiple mounting seats, each housing an IGBT module. It also includes a heat dissipation assembly spanning the multiple IGBT modules and positioned above them. Each mounting seat has a first sliding groove along its length at its top, with the bottom of the IGBT module slidingly engaging with the first sliding groove. The bottom of the heat dissipation assembly has a second sliding groove corresponding to the top of each IGBT module, with each second sliding groove parallel to the first groove and slidingly engaging with the top of the corresponding IGBT module. By providing a first sliding groove at the top of the mounting seat and a second sliding groove at the bottom of the heat dissipation assembly, with the bottom and top of the IGBT module slidingly engaging with the first and second sliding grooves respectively, the IGBT module can be slidably pulled out along the first and second sliding grooves, enabling rapid plugging and unplugging of the IGBT module.

Description

Technical Field

[0001] This utility model relates to the field of heat dissipation technology for energy storage converters, specifically to a pluggable IGBT heat dissipation module for energy storage converters. Background Technology

[0002] With the booming development of the energy storage industry driven by "battery + power electronics technology", global attention to energy issues continues to rise. Against this backdrop, the energy storage converter (PCS), as the core component of the energy storage system, relies heavily on the IGBT, a key switching device, for its power conversion function.

[0003] As the capacity of IGBT devices continues to increase, the heat load generated during their operation increases significantly, placing higher demands on the heat dissipation performance of heat sinks. This is to prevent the IGBT from degrading in performance or even causing functional failure due to the chip temperature approaching or even reaching the maximum allowable IGBT junction temperature threshold during operation. Summary of the Invention

[0004] To address the aforementioned technical problems in the existing technology, this utility model provides a pluggable IGBT heat dissipation module for energy storage converters.

[0005] To achieve the above objectives, this utility model provides the following technical solution:

[0006] A pluggable IGBT heat dissipation module for an energy storage converter is provided, including a base plate with multiple mounting seats arranged at intervals on the base plate, each mounting seat having an IGBT module mounted thereon; it also includes a heat dissipation component for cooling the IGBT modules, the heat dissipation component spanning the multiple IGBT modules and located above the multiple IGBT modules; each mounting seat has a first sliding groove on its top along its length, the bottom of the IGBT module slidingly engaging with the first sliding groove; the bottom of the heat dissipation component has a second sliding groove at a position corresponding to the top of each IGBT module, each second sliding groove being arranged parallel to the first sliding groove, and the second sliding groove slidingly engaging with the top of the corresponding IGBT module.

[0007] Preferably, the IGBT module includes a driver and a heat sink, with multiple IGBT modules mounted on the heat sink; each IGBT module has a gate board electrically connected to the driver for receiving driver signals and transmitting control signals to the IGBT module; the IGBT module also includes a capacitor busbar and a connecting copper busbar, the capacitor busbar for transmitting power supply current to the IGBT module, and the connecting copper busbar for conducting the converted power from the IGBT module.

[0008] Preferably, the IGBT module further includes a current transformer for detecting the current passing through the connecting copper busbar. The current transformer is mounted on the base plate and includes a mounting block and a current transformer mounted on the mounting block. The current transformer has a conductive sheet, and one end of the conductive sheet is connected to the connecting copper busbar.

[0009] Preferably, the IGBT module further includes a housing, a heat sink is fixedly disposed inside the housing, the bottom of the housing is slidably engaged with the first slide groove, and the top of the housing is slidably engaged with the second slide groove; the other end of the housing inserted into the first slide groove and the second slide groove extends with a baffle for limiting the maximum sliding stroke of the housing, and the baffle is also provided with a handle for pushing and pulling the housing.

[0010] Preferably, a mounting plate is provided on one end face of the housing, and the driver is mounted on the housing through the mounting plate; an insulating partition is provided on the other end face of the housing to form an insulating barrier between the connecting copper busbar and the housing.

[0011] Preferably, the top of the housing has a first air inlet and the bottom of the housing has a first air outlet, and the first air inlet is connected to the heat dissipation component; the mounting base is hollow and connected to the first air outlet, and the bottom plate has an exhaust port at the position corresponding to the mounting base.

[0012] Preferably, the heat dissipation assembly includes a detachably connected upper cover and a lower cover, and a plurality of second sliding grooves are provided at the bottom of the lower cover; it also includes a centrifugal fan provided between the upper cover and the lower cover, the centrifugal fan being fixedly connected to the upper cover via a connecting rod; the top of the upper cover is provided with a second air inlet, the bottom of the lower cover is provided with a second air outlet, and the plurality of second air outlets correspond one-to-one with and are connected to the plurality of second sliding grooves.

[0013] Preferably, the heat dissipation assembly further includes an air guide plate, which is located between the upper cover and the lower cover and above the second air outlet. The air guide plate is inclined to guide and divert the airflow blown out by the centrifugal fan, so that the airflow can flow to each of the second air outlets and blow down to the IGBT module through the corresponding second air outlet.

[0014] The beneficial effects of this utility model are:

[0015] This invention discloses a pluggable IGBT heat dissipation module for an energy storage converter. A first sliding groove is provided on the top of the mounting base, with the bottom of the IGBT module slidingly engaging with it. A second sliding groove is provided on the bottom of the heat dissipation assembly corresponding to the top of each IGBT module, and these second grooves also slide with the top of the IGBT module, with both grooves facing the same direction. This design allows the IGBT modules to be directly pulled out along the first and second sliding grooves, enabling rapid plugging and unplugging. The heat dissipation assembly spans multiple IGBT modules and is located above them, allowing for simultaneous centralized cooling of multiple IGBT modules, avoiding the need for a separate heat dissipation structure for each IGBT module and thus reducing costs. Attached Figure Description

[0016] Figure 1 This is a perspective view of a pluggable IGBT heat dissipation module for an energy storage converter in one embodiment.

[0017] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0018] Figure 3 This is a cross-sectional view of a pluggable IGBT heat dissipation module for an energy storage converter in one embodiment.

[0019] Figure 4 This is a perspective view of the base plate and mounting base in the embodiment.

[0020] Figure 5 This is a perspective view of the IGBT module in the embodiment.

[0021] Figure 6 This is an exploded view of the IGBT module in the embodiment.

[0022] Figure 7 This is a perspective view of the heat dissipation component in the embodiment.

[0023] Figure 8 This is a perspective view of the heat dissipation component in the embodiment.

[0024] Reference numerals: 1. Base plate; 10. Mounting base; 100. First slide groove; 11. Exhaust port; 2. IGBT module; 20. Heat sink; 21. IGBT module; 22. Driver; 23. Gate board; 24. Capacitor busbar; 25. Connecting copper busbar; 26. Current transformer; 261. Mounting block; 262. Current transformer; 263. Conductive sheet; 27. Housing; 270. Mounting plate; 271. Insulating partition; 272. First air inlet; 273. First air outlet; 274. Baffle; 275. Handle; 3. Heat dissipation assembly; 30. Top cover; 301. Second air inlet; 31. Bottom cover; 310. Second slide groove; 311. Second air outlet; 32. Centrifugal fan; 33. Connecting rod; 34. Air guide plate. Detailed Implementation

[0025] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0026] This embodiment presents a pluggable IGBT heat dissipation module for an energy storage converter, such as... Figures 1 to 8 As shown, it includes a base plate 1, on which a plurality of mounting seats 10 are provided at intervals. The plurality of mounting seats 10 are arranged laterally along the length of the base plate 1, and an IGBT module 2 is provided on the top of each mounting seat 10.

[0027] It also includes a heat dissipation component 3, which spans multiple IGBT modules 2 and is located above the multiple IGBT modules 2. It is used to dissipate heat from the IGBT modules 2 to prevent the heat generated by the high power operation of the IGBT modules 2 from accumulating and causing the temperature to become too high, thereby affecting their electrical performance or shortening their service life.

[0028] Furthermore, each mounting base 10 has a first sliding groove 100 on its top, extending along its length, and the bottom of the IGBT module 2 slides in engagement with the first sliding groove 100. The bottom of the heat dissipation assembly 3 has a second sliding groove 310 corresponding to the top of each IGBT module 2. Each second sliding groove 310 is arranged parallel to the first sliding groove 100 and slides in engagement with the top of the corresponding IGBT module 2. With this design, when maintenance or replacement is required, the operator can directly slide the IGBT module 2 synchronously along the first sliding groove 100 and the second sliding groove 310, thereby removing the IGBT module 2 from between the heat dissipation assembly 3 and the mounting base 10.

[0029] It should be noted that since the heat dissipation component 3 spans multiple IGBT modules 2 and is slidably connected to multiple IGBT modules 2, it can be seen that when multiple IGBT modules 2 are inserted into the first sliding groove 100 and the second sliding groove 200, multiple IGBT modules 2 jointly support the heat dissipation component 3. Therefore, when it is necessary to inspect the IGBT modules 2, it is necessary to remove the IGBT modules 2 one by one from the mounting base 10 and the heat dissipation component 3, so that at least one IGBT module 2 is maintained between the heat dissipation component 3 and the mounting base 10 to prevent the heat dissipation component 3 from falling off. When it is necessary to remove multiple IGBT modules 2 at the same time, it is necessary to fix the heat dissipation component 3 with an external mounting bracket before removing the multiple IGBT modules 2.

[0030] In addition, guide plates are provided at the openings of the first slide 100 and the second slide 310. The guide plates are flared outward in a funnel shape to provide guidance when the IGBT module 2 is inserted.

[0031] Furthermore, the IGBT module 2 includes a heat sink 20 and a driver 22. Multiple IGBT modules 21 are mounted on the heat sink 20, and each IGBT module 21 has a gate-level board 23. The gate-level board 23 is electrically connected to the driver 22 via wires. When the driver 22 sends a control signal, the gate-level board 23 can receive the control signal from the driver 22 and then transmit the control signal to the IGBT modules 21, thereby controlling the IGBT modules 21.

[0032] It should be noted that the driver 22 in this example can be an existing externally purchased driver 2SP0115T2A0-17, and the gate board 23 can be an existing externally purchased gate board 23 with the model number 1SP0635V2-17. No limitation is made here.

[0033] Cooling copper pipes containing coolant are provided on the mounting surface where the heat sink 20 and the IGBT module 21 are attached, in order to improve the heat dissipation performance of the heat sink 20.

[0034] The IGBT module 2 also includes a capacitor busbar 24 and a connecting copper busbar 25. The capacitor busbar 24 serves as a power supply channel, which can transmit current to the IGBT module 21 and provide sufficient power support for the operation of the IGBT module 21. The connecting copper busbar 25 is used to conduct the power converted by the IGBT module 21 and deliver the converted power to the subsequent circuits.

[0035] Furthermore, to enable real-time monitoring of the power parameters converted by the IGBT module 21, the IGBT module 2 is also equipped with a current transformer device 26. The current transformer device 26 is mounted on the base plate 1 and includes a mounting block 261. A current transformer 262 is mounted on the mounting block 261, and a conductive sheet 263 is inserted into the current transformer 262. One end of the conductive sheet 263 is connected to a copper busbar 25, and the other end of the conductive sheet 263 can be connected to a detector for detecting current. It should be noted that the current transformer device 26 is prior art; for details, please refer to Chinese Utility Model Publication No. CN219286158U, entitled "A Current Transformer Device." The aforementioned disclosed current transformer device can be directly used as the current transformer device 26 in this application.

[0036] Furthermore, the IGBT module 2 also includes a housing 27, a heat sink 20 is fixedly disposed inside the housing 27, and a driver 22 is fixedly disposed on an outer end face of the housing 27, and a mounting plate 270 is also provided on this outer end face, and the driver 22 is fixed on the housing 27 by the mounting plate 270.

[0037] Furthermore, the bottom of the housing 27 is slidably engaged with the first slide groove 100, and the top of the housing 27 is slidably engaged with the second slide groove 310, so that when the housing 27 slides on the first slide groove 100 and the second slide groove 310, it can drive the IGBT module 21 to move together.

[0038] A baffle 274 extends from the other end of the housing 27, which is inserted into the first slide groove 100 and the second slide groove 310. This baffle 274 limits the maximum travel of the housing 27 within the slide groove. Specifically, when the housing 27 slides through the first slide groove 100 and the second slide groove 310, once the baffle 274 contacts the end of the mounting base 10 and the end of the heat dissipation assembly 3, it forms a mechanical barrier, preventing the housing 27 from continuing to slide. Furthermore, when the baffle 274 contacts the end of the mounting base 10 and the end of the heat dissipation assembly 3, the housing 27 can also be secured with bolts to prevent shaking during the operation of the IGBT module 2. A handle 275 is also provided on the baffle 274. When it is necessary to remove the IGBT module 2 from the mounting base 10 and the heat dissipation component 3, the fixing bolts on the baffle 274 need to be removed first to release the baffle 274 from the mounting base 10 and the heat dissipation component 3. Then, the operator can hold the handle 275 and pull it outward along the extension direction of the first slide groove 100 and the second slide groove 310 to smoothly remove the housing 27 along with the entire IGBT module 2 from the mounting base 10 and the heat dissipation component 3.

[0039] It should be noted that, in order to prevent the connecting copper busbar 25 from coming into contact with the housing 27, an insulating partition 271 is provided on the outer end face of the housing 27 facing the connecting copper busbar 25, so as to form an insulating barrier between the connecting copper busbar 25 and the housing 27.

[0040] Furthermore, a first air inlet 272 is provided on the top of the housing 27. The first air inlet 272 is connected to the heat dissipation component 3. When the heat dissipation component 3 is working, the airflow generated by the heat dissipation component 3 can be directly introduced into the interior of the housing 27 through the first air inlet 272, flowing through the heat sink 20 and the surface of the IGBT module 21, and quickly carrying away the heat generated by the IGBT module 21 during operation.

[0041] After the airflow generated by the heat dissipation component 3 completes the heat exchange between the heat sink 20 and the IGBT module 21, it needs to be discharged promptly. To this end, a first air outlet 273 is provided at the bottom of the housing 27, and the mounting base 10 is designed as a hollow structure, allowing the first air outlet 273 to directly communicate with the interior of the mounting base 10. Simultaneously, exhaust ports 11 are provided on the base plate 1 corresponding to each mounting base 10, allowing hot air carrying heat to pass through the first air outlet 273, the internal channel of the mounting base 10, and finally be discharged from the exhaust ports 11. This design prevents hot air from continuously remaining inside the housing 27, ensuring that heat is quickly discharged from the housing 27, thereby effectively reducing the temperature of the IGBT module 21.

[0042] Furthermore, the heat dissipation assembly 3 includes a detachably connected upper cover 30 and a lower cover 31, with multiple second sliding grooves 310 located at the bottom of the lower cover 31. A centrifugal fan 32 is also provided between the upper cover 30 and the lower cover 31, and the centrifugal fan 32 is fixedly connected to the upper cover 30 via a connecting rod 33. A second air inlet 301 is provided at the top of the upper cover 30, and a second air outlet 311 is provided at the bottom of the lower cover 31. The multiple second air outlets 311 correspond one-to-one with and are connected to the multiple second sliding grooves 310. In use, after the centrifugal fan 32 is started, external air is drawn into the heat dissipation assembly 3 through the second air inlet 301, forming a high-pressure airflow under the action of the centrifugal fan 32. This airflow is distributed to each of the second air outlets 311, and then enters the interior of the IGBT module 2 through the first air inlet 272 at the top of the IGBT module 2 to cool the heat sink 20 and the IGBT module 21.

[0043] To ensure that the high-pressure airflow generated by the centrifugal fan 32 is more evenly distributed to each of the second air outlets 311, a guide plate 34 is provided between the upper cover 30 and the lower cover 31. The guide plate 34 is arranged at an angle, which can guide and divert the airflow blown out by the centrifugal fan 32, so that the airflow is reasonably distributed before entering each of the second air outlets 311, and finally evenly delivered to the interior of each IGBT module 2 through the corresponding second air outlet 311 and the first air inlet 272.

[0044] In the description of this utility model, it is obvious that the described embodiments are only a part of the embodiments of this utility model, and not all of them. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0045] Therefore, the above detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0046] In the description of this utility model, it should be noted that the terms "middle," "upper," "lower," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product is in use. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0047] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "set," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.

Claims

1. A plug-in IGBT heat dissipation module of energy storage converter, characterized in that, The system includes a base plate (1), on which a plurality of mounting seats (10) are arranged at intervals, and each mounting seat (10) is provided with an IGBT module (2); it also includes a heat dissipation component (3) for dissipating heat from the IGBT module (2), the heat dissipation component (3) spans the plurality of IGBT modules (2) and is located above the plurality of IGBT modules (2); each mounting seat (10) has a first groove (100) arranged along its length at its top, and the bottom of the IGBT module (2) slides in cooperation with the first groove (100); the bottom of the heat dissipation component (3) is provided with a second groove (310) at the position corresponding to the top of each IGBT module (2), each second groove (310) is arranged parallel to the first groove (100), and the second groove (310) slides in cooperation with the top of the corresponding IGBT module (2).

2. The energy storage inverter plug-in IGBT heat sink module of claim 1, wherein, The IGBT module (2) includes a driver (22) and a heat sink (20). The heat sink (20) is provided with multiple IGBT modules (21). The IGBT module (21) is provided with a gate board (23) electrically connected to the driver (22) for receiving signals from the driver (22) and transmitting control signals to the IGBT module (21). The IGBT module (2) also includes a capacitor busbar (24) and a connecting copper busbar (25). The capacitor busbar (24) is used to transmit power supply current to the IGBT module (21), and the connecting copper busbar (25) is used to conduct the power converted by the IGBT module (21).

3. The energy storage inverter plug-in IGBT heat sink module of claim 2, wherein, The IGBT module (2) also includes a current transformer (26) for detecting the current passing through the connecting copper busbar (25). The current transformer (26) is mounted on the base plate (1) and includes a mounting block (261) and a current transformer (262) mounted on the mounting block (261). The current transformer (262) is provided with a conductive sheet (263), and one end of the conductive sheet (263) is connected to the connecting copper busbar (25).

4. The energy storage inverter plug-in IGBT heat sink module of claim 2, wherein, The IGBT module (2) also includes a housing (27), a heat sink (20) is fixedly installed inside the housing (27), the bottom of the housing (27) is slidably engaged with the first slide groove (100), and the top of the housing (27) is slidably engaged with the second slide groove (310); the other end of the housing (27) inserted into the first slide groove (100) and the second slide groove (310) extends with a baffle (274) for limiting the maximum sliding stroke of the housing (27), and the baffle (274) is also provided with a handle (275) that can push and pull the housing (27).

5. The energy storage inverter plug-in IGBT heat sink module of claim 4, wherein, A mounting plate (270) is provided on one end face of the housing (27), and the driver (22) is mounted on the housing (27) through the mounting plate (270); an insulating partition (271) is provided on the other end face of the housing (27) to form an insulating barrier between the connecting copper busbar (25) and the housing (27).

6. The energy storage inverter plug-in IGBT heat sink module of claim 4, wherein, The top of the housing (27) is provided with a first air inlet (272) and the bottom of the housing (27) is provided with a first air outlet (273). The first air inlet (272) is connected to the heat dissipation component (3). The mounting base (10) is hollow and connected to the first air outlet (273). The bottom plate (1) is provided with an exhaust port (11) at the position corresponding to the mounting base (10).

7. The energy storage inverter plug-in IGBT heat sink module of claim 1, wherein, The heat dissipation assembly (3) includes a detachably connected upper cover (30) and lower cover (31), and multiple second slides (310) are located at the bottom of the lower cover (31); it also includes a centrifugal fan (32) located between the upper cover (30) and the lower cover (31), and the centrifugal fan (32) is fixedly connected to the upper cover (30) via a connecting rod (33); the top of the upper cover (30) is provided with a second air inlet (301), and the bottom of the lower cover (31) is provided with a second air outlet (311), and multiple second air outlets (311) correspond one-to-one with and are connected to multiple second slides (310).

8. The energy storage inverter plug-in IGBT heat sink module of claim 7, wherein, The heat dissipation assembly (3) also includes an air guide plate (34), which is located between the upper cover (30) and the lower cover (31) and above the second air outlet (311). The air guide plate (34) is inclined to guide the airflow blown out by the centrifugal fan (32) to split the airflow so that the airflow can flow to each of the second air outlets (311) and blow to the IGBT module (2) below through the corresponding second slide groove (310).

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