Copper bar structure and power module

Abstract

The utility model discloses a copper bar structure and a power module, the copper bar structure is applied to the power module, the copper bar structure comprises a plurality of copper bar main bodies and a plurality of mounting plates, the plurality of copper bar main bodies and the plurality of mounting plates are sequentially stacked and alternately arranged, each copper bar main body is mounted on the corresponding mounting plate, and the copper bar main bodies are mounted on the mounting plates. Each mounting plate comprises a mounting area and fixing areas located at the two opposite ends of the mounting plate, the copper bar body is mounted in the mounting area, and the fixing areas can be connected with the interior of the power module so that the copper bar structure can be mounted in the power module. According to the technical scheme, the integration level of the copper bar structure is high, the installation accuracy can be improved in the limited space of the power module, the electrical connection smoothness of the copper bar structure is improved, electrical faults caused by space limitation are avoided, and the installation efficiency can be improved.

Description

Technical Field

[0001] This application relates to the technical field of power modules, and particularly to a copper busbar structure and a power module. Background Art

[0002] Multiple lines inside the power module are mainly electrically connected through copper busbars. In the related art, a separate copper busbar structure is usually adopted inside the power module for individual lapping. Since the space inside the power module is usually narrow and limited, the aforementioned installation method not only consumes working hours and reduces the installation efficiency, but also is prone to errors during the installation process due to the large number and the different lengths and shapes of the copper busbars, resulting in unsmooth electrical connection, easy occurrence of electrical faults, and non-compliance with safety specifications. Summary of the Utility Model

[0003] The embodiments of this application provide a copper busbar structure and a power module, which can improve the installation accuracy within the limited space of the power module, enhance the smoothness of the electrical connection of the copper busbar structure, avoid electrical faults caused by space limitations, and also improve the installation efficiency.

[0004] In a first aspect, the embodiments of this application provide a copper busbar structure. The copper busbar structure is applied inside a power module and includes: a plurality of copper busbar bodies and a plurality of mounting plates. The plurality of copper busbar bodies and the plurality of mounting plates are alternately stacked in sequence. Each copper busbar body is respectively mounted on a corresponding mounting plate. Among them, each mounting plate respectively includes a mounting area and fixing areas located at opposite ends of the mounting plate. The copper busbar body is mounted in the mounting area, and the fixing areas can be connected to the inside of the power module to mount the copper busbar structure inside the power module.

[0005] The technical solution of this application adopts the method of alternately stacking a plurality of copper busbar bodies and a plurality of mounting plates in sequence. Each copper busbar body is respectively mounted on a corresponding mounting plate. Each mounting plate respectively includes a mounting area and fixing areas located at opposite ends of the mounting plate. The copper busbar body is mounted in the mounting area, and the fixing areas can be connected to the inside of the power module. The plurality of copper busbar bodies and the plurality of mounting plates are integrally arranged. The electrical connection between the plurality of copper busbar bodies is more concentrated and stable. During the installation process, the copper busbar structure can be directly mounted inside the power module through the fixing areas on the mounting plate, which can improve the installation accuracy within the limited space of the power module, enhance the smoothness of the electrical connection of the copper busbar structure, avoid electrical faults caused by space limitations, and also improve the installation efficiency.

[0006] According to the foregoing embodiments of the first aspect of the present application, the mounting plate includes: a plate body and a boss portion. The boss portion protrudes towards the side where the copper busbar body is located with respect to the plate body. The boss portion includes a first part and a second part that are not connected to each other, and there is a mounting groove between the first part and the second part. At least part of the structure of the copper busbar body is connected to the inner wall of the mounting groove in a matching manner, so as to clamp at least part of the structure of the copper busbar body in the mounting groove. In the above embodiment, by providing the boss portion on the plate body, the boss portion includes a first part and a second part that are not connected to each other, and there is a mounting groove between the first part and the second part that can mount at least part of the copper busbar body, which is beneficial to reducing the space occupied by the copper busbar body and optimizing the copper busbar structure.

[0007] According to the foregoing embodiments of the first aspect of the present application, the copper busbar body includes: a clamping portion and a connecting portion. The clamping portion is connected to the inner wall of the mounting groove in a matching manner to clamp the clamping portion in the mounting groove. The connecting portion is connected to the clamping portion, the connecting portion is located outside the mounting groove, and the connecting portion is connected to the external copper busbar of the power module. In the above embodiment, by providing the clamping portion to be clamped in the mounting groove, it is beneficial to reduce the space occupied by the copper busbar body and optimize the copper busbar structure. The connecting portion is located outside the mounting groove, which is beneficial to connecting the copper busbar body to the external copper busbar.

[0008] According to any one of the foregoing embodiments of the first aspect of the present application, the mounting plate includes an epoxy board. In the above embodiment, by providing that the mounting plate includes an epoxy board, the epoxy board can provide electrical isolation and protection, which is beneficial to ensuring the safety regulations requirements of the copper busbar structure and beneficial to improving electrical safety.

[0009] According to the foregoing embodiments of the first aspect of the present application, each mounting plate further includes a safety regulation area, and the safety regulation area is arranged around the mounting area. In the above embodiment, by arranging the safety regulation area around the outer periphery of the mounting area, it is beneficial to ensuring the safety regulations requirements of the copper busbar structure and beneficial to improving electrical safety.

[0010] According to the foregoing embodiments of the first aspect of the present application, an insulating member is provided between adjacent two layers of copper busbar bodies. In the above embodiment, by providing the insulating member between adjacent two layers of copper busbar bodies, it is beneficial to ensure the safety of electrical connection and reduce the short-circuit risk.

[0011] According to the foregoing embodiments of the first aspect of the present application, a hot-pressed insulating film is wrapped around the outer periphery of the mounting plate, and the copper busbar body is connected to the hot-pressed insulating film. In the above embodiment, by wrapping the hot-pressed insulating film around the outer periphery of the mounting plate and connecting the copper busbar body to the hot-pressed insulating film, it is beneficial to ensure the safety of electrical connection and reduce the short-circuit risk.

[0012] In a second aspect, an embodiment of the present application provides a power module. The power module includes a housing and a copper busbar structure according to any one of the foregoing embodiments of the first aspect of the present application, and the copper busbar structure is located inside the housing.

[0013] In the technical solution of the present application, by arranging a plurality of busbar structures in the power module, each busbar structure includes a plurality of busbar bodies and a plurality of mounting plates. The plurality of busbar bodies and the plurality of mounting plates are arranged in a stacked and alternating manner in sequence. Each busbar body is respectively mounted on the corresponding mounting plate. Each mounting plate respectively includes a mounting area and fixing areas located at opposite ends of the mounting plate. The busbar body is mounted in the mounting area, and the fixing areas can be connected to the inside of the power module. The plurality of busbar bodies and the plurality of mounting plates are integrally arranged. The electrical connection between the plurality of busbar bodies is more concentrated and stable. During the installation process, the busbar structure can be directly installed in the power module through the fixing areas on the mounting plate, which can improve the installation accuracy within the limited space of the power module, enhance the smoothness of the electrical connection of the busbar structure, avoid electrical failures caused by space limitations, and also improve the installation efficiency.

[0014] According to the foregoing embodiment of the second aspect of the present application, the interior of the housing includes a first chamber and a second chamber. The first chamber includes a first circuit board, and the second chamber includes a second circuit board. The busbar structure includes a first busbar structure, and the first busbar structure is connected between the first circuit board and the second circuit board. The first busbar structure has a bent portion. In the above embodiment, by arranging the first busbar structure, the first busbar structure connects the first circuit board located in the first chamber and the second circuit board located in the second chamber. The first busbar structure has a bent portion, which optimizes the connection angle of the first busbar, reduces the space occupation inside the housing, improves the integration degree inside the power module, improves the stability of the electrical connection between the first circuit board and the second circuit board, and helps to maintain good electrical performance in a complex environment.

[0015] According to the foregoing embodiment of the second aspect of the present application, the exterior of the housing further includes a second busbar structure and a third busbar structure. The second busbar structure is connected to the external busbar on the upper layer of the power module, and the third busbar structure is connected to the external busbar on the lower layer of the power module. In the above embodiment, by arranging the second busbar structure to be connected to the external busbar on the upper layer of the power module and the third busbar structure to be connected to the external busbar on the lower layer of the power module, it is beneficial to improve the smoothness of the electrical connection and avoid electrical failures caused by space limitations. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the busbar structure of the present application;

[0017] Figure 2 It is a schematic diagram of the structure in which the busbar body of an embodiment of the busbar structure of the present application is mounted on the mounting plate;

[0018] Figure 3 It is a side view of the busbar structure of an embodiment of the busbar structure of the present application;

[0019] Figure 4 It is a schematic diagram of the overall structure of another embodiment of the copper bar structure of the present application;

[0020] Figure 5 It is a side view of an embodiment of the power module of the present application;

[0021] Figure 6 It is a front view of the copper bar body in the first copper bar structure in an embodiment of the power module of the present application;

[0022] Figure 7 It is a top view of the copper bar body in the first copper bar structure in an embodiment of the power module of the present application;

[0023] Figure 8 It is a bottom view of the internal structure of the housing of an embodiment of the power module of the present application.

[0024] Explanation of the reference numerals in the drawings:

[0025] Copper bar structure - 100, power module - 200;

[0026] Copper bar body - 110, mounting plate - 120, housing - 210, first copper bar structure - 220, second copper bar structure - 230, third copper bar structure - 240;

[0027] Clamping part - 111, connecting part - 112, insulating part - 113, mounting area - 121, fixing area - 122, plate body - 123, boss part - 124, safety - regulation area - 125, heat - pressed insulating film - 126, first chamber - 211, second chamber - 212, bending part - 221, connecting part - 222, third connecting through - hole - 223;

[0028] First part - 1241, second part - 1242, mounting groove - 1243, second circuit board - 2121. Detailed implementation manners

[0029] Next, the technical solutions in the embodiments of the present application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the scope of protection of the present application.

[0030] It should be noted that all the directional indications (such as up, down, left, right, front, back...) in the embodiments of the present application are only used to explain the relative positional relationship and movement conditions between components in a specific posture (as shown in the drawings). If the specific posture changes, the directional indications will also change accordingly.

[0031] In addition, the descriptions involving "first", "second", etc. in this application are for descriptive purposes only, and should not be construed as indicating or implying their relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between various embodiments may be combined with each other, but it must be based on the ability of those of ordinary skill in the art to implement. When the combination of technical solutions results in contradictions or cannot be implemented, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection required by this application.

[0032] An embodiment of this application provides a busbar structure 100 and a power module 200, which can improve the installation accuracy within the limited space of the power module 200, enhance the smoothness of the electrical connection of the busbar structure 100, avoid electrical failures caused by space limitations, and also improve the installation efficiency.

[0033] As Figure 1 shown, an embodiment of this application provides a busbar structure 100, and the busbar structure 100 is applied within a power module 200. The busbar structure 100 includes: a plurality of busbar bodies 110 and a plurality of mounting plates 120. The plurality of busbar bodies 110 and the plurality of mounting plates 120 are alternately stacked in sequence. Each busbar body 110 is respectively mounted on a corresponding mounting plate 120. The plurality of busbar bodies 110 and the plurality of mounting plates 120 are integrally modularized, and the electrical connection between the plurality of busbar bodies 110 is more concentrated and stable. Those skilled in the art can determine the quantities of the busbar bodies 110 and the mounting plates 120 according to actual electrical connection needs, and this application does not limit the quantities of the busbar bodies 110 and the mounting plates 120.

[0034] As Figure 1 shown, each mounting plate 120 respectively includes a mounting area 121 and fixing areas 122 located at opposite ends of the mounting plate 120. The busbar body 110 is mounted on the mounting area 121, and the fixing areas 122 can be connected to the inside of the power module 200 to mount the busbar structure 100 within the power module 200. When installing the busbar structure 100 into the inside of the power module 200, a plurality of busbar bodies 110 and a plurality of mounting plates 120 can be alternately stacked in sequence to form a module first, and then the busbar structure 100 can be directly mounted within the power module 200 through the fixing areas 122 on the mounting plate 120, improving the installation accuracy within the limited space of the power module 200, enhancing the smoothness of the electrical connection of the busbar structure 100, avoiding electrical failures caused by space limitations, and also improving the installation efficiency.

[0035] In some embodiments, a plurality of first connection through-holes may be provided in the fixed area 122, and a plurality of second connection through-holes corresponding to the first connection through-holes one by one are also provided inside the power module 200. The connecting member is detachably and matingly connected to the first connection through-hole and the second connection through-hole, so that the fixed area 122 can be installed inside the power module 200. In some embodiments, the connecting member may be in the form of a screw.

[0036] As Figure 1 shown, each mounting plate 120 further includes a safety regulation area 125 respectively. The safety regulation area 125 is arranged around the mounting area 121, which is beneficial to ensuring the safety regulation requirements of the copper busbar structure 100 and improving electrical safety. When installing the copper busbar main body 110 on the mounting plate 120, the safety regulation areas 125 may be reserved respectively on the upper and lower sides in the width direction of the mounting plate 120, and the fixed areas 122 may be reserved respectively at both ends of the mounting plate 120. The mounting area 121, the fixed area 122, and the safety regulation area 125 do not interfere with each other or overlap with each other. After the copper busbar main bodies 110 are installed in the mounting area 121, a plurality of copper busbar main bodies 110 and a plurality of mounting plates 120 are combined into a copper busbar structure 100, and the copper busbar structure 100 is installed inside the power module 200 as a whole.

[0037] In some embodiments of the present application, those skilled in the art can reduce the thickness of the copper busbar main body 110 according to actual needs, and at the same time increase the width of the copper busbar main body 110 to ensure that the cross-sectional area of the copper busbar main body 110 is the same, so that the magnitude of the conductive current passing through remains unchanged, which is beneficial to the copper busbar structure 100 being adaptively installed inside different power modules 200.

[0038] As Figure 2 shown, the mounting plate 120 includes: a plate body 123 and a boss portion 124. The boss portion 124 protrudes relative to the plate body 123 toward the side where the copper busbar main body 110 is located. The boss portion 124 includes a first part 1241 and a second part 1242 that are not connected to each other, and there is a mounting groove 1243 between the first part 1241 and the second part 1242. It should be noted that the mounting groove 1243 is located in the mounting area 121 for mounting the copper busbar main body 110.

[0039] As Figure 2As shown, the copper busbar main body 110 includes a clamping portion 111 and a connecting portion 112 that are connected to each other. The clamping portion 111 is connected to the inner wall of the installation groove 1243 in a matching manner to clamp the clamping portion 111 in the installation groove 1243, which can improve the installation efficiency when installing the copper busbar main body 110 onto the installation plate 120, simplify the installation steps, and also facilitate the later maintenance and replacement of the copper busbar main body 110. Moreover, the clamping portion 111 occupies most of the structure of the copper busbar main body 110. By clamping the clamping portion 111 in the installation groove 1243, the occupied space of the copper busbar main body 110 in the power module 200 can be reduced, the copper busbar structure 100 is optimized, and the space utilization rate is improved.

[0040] As Figure 2 shown, the clamping portion 111 is bent, and the installation groove 1243 is also bent and matched with the outer periphery of the clamping portion 111, so that the clamping portion 111 can be located in the installation groove 1243, avoiding gaps or inappropriate size matching between the clamping portion 111 and the installation groove 1243, which may cause electrical failures.

[0041] As Figure 2 shown, the connecting portion 112 is connected to the clamping portion 111. Since the first part 1241 and the second part 1242 are not connected to each other, a channel allowing the connecting portion 112 to pass through can be formed between the first part 1241 and the second part 1242 at the edge of the plate body 123. The connecting portion 112 can extend out of the installation groove 1243 through the channel, which is convenient for connecting the connecting portion 112 to the external copper busbar of the power module 200, optimizes the copper busbar structure 100, improves the space utilization rate, and can also ensure the smoothness of the electrical connection of the copper busbar structure 100.

[0042] In the embodiment of the present application, since the installation plate 120 includes a plate body 123 and a boss portion 124 protruding from the plate body 123, in order to provide electrical isolation and protection for the copper busbar structure 100, the installation plate 120 is an epoxy board, which is beneficial to ensuring the safety regulations requirements of the copper busbar structure 100 and improving electrical safety when the clamping portion 111 of the copper busbar main body 110 is installed in the installation groove 1243. In other embodiments, those skilled in the art can also select other materials according to actual needs, such as rubber plates, fiberglass plates, polytetrafluoroethylene and other materials to achieve the effect of insulation and isolation.

[0043] As Figure 3 shown, an insulating member 113 is provided between adjacent two layers of copper busbar main bodies 110. The insulating member 113 can be connected between adjacent two layers of copper busbar main bodies 110 in the form of an insulator or an insulating column, which is beneficial to ensuring the safety of electrical connection and reducing the short-circuit risk.

[0044] In another embodiment of the present application, as Figure 4As shown, a hot-pressed insulation film 126 is wrapped around the outer periphery of the mounting plate 120. The busbar body 110 is connected to the hot-pressed insulation film 126, eliminating the need to provide a boss portion 124 on the plate body 123 for insulating and isolating the busbar body 110. This helps reduce the overall height of the busbar structure 100 and also enhances the external aesthetics and simplicity of the busbar structure 100. The hot-pressed insulation film 126 is directly adhered to the busbar body 110 through an adhesive, which is beneficial for ensuring the safety of electrical connections and reducing the short-circuit risk.

[0045] As Figures 5 to 8 shown, an embodiment of the present application further provides a power module 200. The power module 200 includes a housing 210 and a busbar structure 100 according to any one of the foregoing embodiments of the present application. The busbar structure 100 is located inside the housing 210.

[0046] As Figure 1 shown, an embodiment of the present application provides a busbar structure 100, which is applied inside a power module 200. The busbar structure 100 includes: a plurality of busbar bodies 110 and a plurality of mounting plates 120. The plurality of busbar bodies 110 and the plurality of mounting plates 120 are alternately stacked in sequence. Each busbar body 110 is respectively mounted on a corresponding mounting plate 120. The plurality of busbar bodies 110 and the plurality of mounting plates 120 are integrally provided in a modular manner, and the electrical connections between the plurality of busbar bodies 110 are more concentrated and stable. Those skilled in the art can determine the number of busbar bodies 110 and mounting plates 120 according to actual electrical connection requirements. The present application does not limit the number of busbar bodies 110 and mounting plates 120.

[0047] As Figure 1 shown, each mounting plate 120 respectively includes a mounting area 121 and fixing areas 122 located at opposite ends of the mounting plate 120. The busbar body 110 is mounted in the mounting area 121. The fixing areas 122 can be connected to the inside of the power module 200 to mount the busbar structure 100 inside the power module 200, improving the installation accuracy in the limited space of the power module 200, enhancing the smoothness of the electrical connections of the busbar structure 100, avoiding electrical failures caused by space limitations, and also improving the installation efficiency.

[0048] By adopting a plurality of busbar structures 100 arranged in the power module 200, each busbar structure 100 includes a plurality of busbar bodies 110 and a plurality of mounting plates 120. The plurality of busbar bodies 110 and the plurality of mounting plates 120 are arranged in a stacked and alternating manner in sequence. Each busbar body 110 is respectively mounted on a corresponding mounting plate 120. Each mounting plate 120 respectively includes a mounting area 121 and fixing areas 122 located at opposite ends of the mounting plate 120. The busbar body 110 is mounted in the mounting area 121, and the fixing areas 122 can be connected to the inside of the power module 200. The plurality of busbar bodies 110 and the plurality of mounting plates 120 are integrally arranged. The electrical connection between the plurality of busbar bodies 110 is more concentrated and stable. During the installation process, the busbar structure 100 can be directly mounted in the power module 200 through the fixing areas 122 on the mounting plate 120, which can improve the installation accuracy within the limited space of the power module 200, enhance the smoothness of the electrical connection of the busbar structure 100, avoid electrical failures caused by space limitations, and also improve the installation efficiency.

[0049] As Figure 5 shown, the inside of the housing 210 includes a first chamber 211 and a second chamber 212. The first chamber 211 includes a first circuit board. As Figure 8 shown, the second chamber 212 includes a second circuit board 2121. As Figure 5 shown, the busbar structure 100 includes a first busbar structure 220. The first busbar structure 220 is connected between the first circuit board and the second circuit board 2121. It should be noted that in the embodiment of the present application, the power module 200 further includes power components, and the power components are connected to the first circuit board and the second circuit board 2121.

[0050] As Figure 6 shown, the first busbar structure 220 has a bent portion 221. The first busbar structure 220 is bent in a Z - shape, which optimizes the connection angle of the first busbar structure 220, reduces the space occupied inside the housing 210, improves the integration degree inside the power module 200, and improves the stability of the electrical connection between the first circuit board and the second circuit board 2121, contributing to maintaining good electrical performance in a complex environment.

[0051] As Figures 6 to 7 shown, the first busbar structure 220 further includes a connecting portion 222 and a third connecting through - hole 223. The third connecting through - hole 223 is arranged in the connecting portion 222. A connecting screw is detachably arranged in the third connecting through - hole 223 to connect the connecting portion 222 to the first circuit board and the second circuit board 2121 respectively.

[0052] As Figure 8As shown, outside the housing 210, there are also a second copper busbar structure 230 and a third copper busbar structure 240. The second copper busbar structure 230 is connected to the external copper busbar on the upper layer of the power module 200, and the third copper busbar structure 240 is connected to the external copper busbar on the lower layer of the power module 200. By setting the second copper busbar structure 230 to be connected to the external copper busbar on the upper layer of the power module 200 and the third copper busbar structure 240 to be connected to the external copper busbar on the lower layer of the power module 200, it is beneficial to improve the smoothness of electrical connection and avoid electrical failures caused by space limitations.

[0053] The above are only the preferred embodiments of the present application, and do not limit the patent scope of the present application accordingly. Any equivalent structural transformation made by using the content of the specification and drawings of the present application under the inventive concept of the present application, or any direct / indirect application in other related technical fields is included in the patent protection scope of the present application.

Claims

1. A copper busbar structure, characterized in that, The copper busbar structure (100) is applied in a power module (200), and the copper busbar structure (100) includes: A plurality of copper busbar bodies (110); and A plurality of mounting plates (120), the plurality of copper busbar bodies (110) and the plurality of mounting plates (120) are alternately stacked in sequence, and each copper busbar body (110) is respectively mounted on the corresponding mounting plate (120). Wherein, each mounting plate (120) respectively includes a mounting area (121) and fixing areas (122) located at opposite ends of the mounting plate (120). The copper busbar body (110) is mounted on the mounting area (121), and the fixing areas (122) can be connected to the inside of the power module (200) to mount the copper busbar structure (100) in the power module (200).

2. The copper busbar structure according to claim 1, wherein The mounting plate (120) includes: A plate body (123); and A boss portion (124), the boss portion (124) protrudes towards the side where the copper busbar body (110) is located relative to the plate body (123). The boss portion (124) includes a first part (1241) and a second part (1242) that are not connected to each other. There is a mounting groove (1243) between the first part (1241) and the second part (1242). At least part of the structure of the copper busbar body (110) is connected in a matching manner with the inner wall of the mounting groove (1243) to clamp at least part of the structure of the copper busbar body (110) in the mounting groove (1243).

3. The copper busbar structure according to claim 2, characterized in that The copper busbar body (110) includes: A clamping portion (111), the clamping portion (111) is connected in a matching manner with the inner wall of the mounting groove (1243) to clamp the clamping portion (111) in the mounting groove (1243); and A connecting portion (112), the connecting portion (112) is connected to the clamping portion (111). The connecting portion (112) is located outside the mounting groove (1243), and the connecting portion (112) is connected to an external copper busbar of the power module (200).

4. The copper busbar structure according to any one of claims 2 to 3, characterized in that, The mounting plate (120) includes an epoxy board.

5. The copper bar structure according to claim 1, characterized in that, Each mounting plate (120) respectively further includes a safety regulation area (125), and the safety regulation area (125) is arranged to surround the mounting area (121).

6. The copper busbar structure according to claim 1, wherein, An insulating member (113) is arranged between adjacent two layers of the copper busbar bodies (110).

7. The copper bar structure according to claim 1, characterized in that, A hot-pressed insulating film (126) is wrapped around the outer periphery of the mounting plate (120), and the copper busbar body (110) is connected to the hot-pressed insulating film (126).

8. A power module, characterized in that, The power module (200) includes: A housing (210); and The copper busbar structure (100) as described in any one of claims 1 to 7, and the copper busbar structure (100) is located inside the housing (210).

9. The power module according to claim 8, characterized in that, Inside the housing (210), there are a first chamber (211) and a second chamber (212). Inside the first chamber (211), there is a first circuit board. Inside the second chamber (212), there is a second circuit board (2121). The copper busbar structure (100) includes a first copper busbar structure (220). The first copper busbar structure (220) is connected between the first circuit board and the second circuit board (2121), and the first copper busbar structure (220) has a bent portion (221).

10. The power module according to claim 8, wherein Outside the housing (210), there are also a second copper busbar structure (230) and a third copper busbar structure (240). The second copper busbar structure (230) is connected to the upper external copper busbar of the power module (200), and the third copper busbar structure (240) is connected to the lower external copper busbar of the power module (200).

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