Frame assembly of power module and crimping type power module

Abstract

The utility model discloses a frame assembly of a power module and a crimping type power module, the frame assembly comprises a first side plate, a second side plate, a connecting pull rod and a connecting piece, the first side plate and the second side plate are parallel and are oppositely arranged, a first connecting hole is formed in the surface, facing the second side plate, of the first side plate, and a second connecting hole is formed in the surface, facing the second side plate, of the second side plate; a second connecting hole communicated with the first connecting hole is formed in the side face of the first side plate, the first end of the connecting pull rod is inserted into the first connecting hole to be connected with the first side plate, and the second end of the connecting pull rod is connected with the second side plate, so that a pressing space used for pressing the crimping power string is formed between the first side plate and the second side plate; a third connecting hole is formed in the first end part, and the connecting piece can sequentially penetrate through the second connecting hole and the third connecting hole, so that the connecting pull rod is limited on the first side plate. According to the technical scheme, the assembling steps are simplified, and the assembling efficiency is improved.

Description

Technical Field

[0001] This application relates to the technical field of power modules, and particularly relates to a frame component of a power module and a press-fit power module. Background Art

[0002] The frame component is an important part of the press-fit power module. On the one hand, the frame component can provide an installation interface for the devices inside the frame, and on the other hand, it can assemble the press-fit power module with the external complete machine. Therefore, the frame component itself needs to have good stiffness and strength. However, the frame component in the related art is generally heavy and thick, and usually uses a fastening method for installation, with complex operation steps, reducing the assembly efficiency. Summary of the Utility Model

[0003] The embodiments of this application provide a frame component of a power module and a press-fit power module, which can help simplify the assembly steps and improve the assembly efficiency.

[0004] In a first aspect, the embodiments of this application provide a frame component of a power module. The frame component includes: a first side plate, a second side plate, a connecting tie rod, and a connecting piece. The first side plate and the second side plate are parallel and oppositely arranged. The surface of the first side plate facing the second side plate is provided with a first connection hole. A second connection hole communicating with the first connection hole is arranged on the side surface of the first side plate. The first end of the connecting tie rod is inserted into the first connection hole to be connected with the first side plate. The second end of the connecting tie rod is connected with the second side plate, so as to form a pressing space for pressing a press-fit power string between the first side plate and the second side plate. The first end is provided with a third connection hole. The connecting piece can sequentially pass through the second connection hole and the third connection hole, so that the connecting tie rod is limited to the first side plate.

[0005] In the embodiments of this application, by providing a first connection hole on the surface of the first side plate facing the second side plate, providing a second connection hole communicating with the first connection hole on the side surface of the first side plate, providing a third connection hole at the first end of the connecting tie rod, and enabling the connecting piece to sequentially pass through the second connection hole and the third connection hole, the connecting tie rod is axially limited relative to the first side plate, so as to detachably connect the connecting tie rod with the first side plate. While meeting the reliability of the frame component, the difficulty of the operation steps is reduced, and the assembly efficiency of the frame component is improved. And the connecting tie rod is not protruded outside the first side plate, which is beneficial to reducing the volume of the frame component.

[0006] According to the foregoing embodiments of the first aspect of the present application, the connecting tie rod further includes a main body portion located between the first end portion and the second end portion. The diameter of the first end portion is smaller than the diameter of the main body portion, and the diameter of the first end portion matches the diameter of the first connection hole. In the above embodiment, by setting the diameter of the first end portion to match the diameter of the first connection hole, it is beneficial for the first end portion to extend into the first connection hole and be connected to the first connection hole in a matching manner. By setting the diameter of the first end portion to be smaller than the diameter of the main body portion, when the first end portion extends into the first connection hole, the diameter of the main body portion is larger than the diameter of the first connection hole, preventing part of the structure of the main body portion from also extending into the first connection hole and affecting the connection between the first end portion and the first connection hole, which is beneficial for the alignment connection between the first end portion and the first connection hole.

[0007] According to the foregoing embodiments of the first aspect of the present application, one end of the connecting member facing the outside of the orifice of the second connection hole is provided with a groove. The inner wall of the groove is provided with internal threads, and a detachable connecting screw is arranged in the groove. The outside of the connecting screw has connecting threads that match the internal threads. In the above embodiment, by providing a groove at one end of the connecting member facing the outside of the orifice of the second connection hole, internal threads are provided on the inner wall of the groove, the connecting screw is detachably arranged in the groove, and the outside of the connecting screw has connecting threads that match the internal threads. After screwing the connecting screw into the groove, it is convenient to pull out the connecting member from the first side plate.

[0008] According to the foregoing embodiments of the first aspect of the present application, the frame assembly further includes: a first sealing plate, which is connected to the first side plate and covers the orifice of the second connection hole, and the connecting member is located in the second connection hole. In the above embodiment, by providing a sealing plate at the orifice of the second connection hole, it is beneficial to prevent the connecting member from falling off from the second connection hole and to avoid the connecting tie rod from falling off from the first side plate.

[0009] According to the foregoing embodiments of the first aspect of the present application, the first sealing plate further includes a fixing hole, and the frame assembly further includes a fixing member, and the fixing member can be connected to the fixing hole in a matching manner so that the first sealing plate is limited to the first side plate.

[0010] According to any of the foregoing embodiments of the first aspect of the present application, the surface of the second side plate facing the first side plate is provided with a fourth connection hole, and a fifth connection hole communicating with the fourth connection hole is provided on the side surface of the second side plate. The second end portion of the connecting tie rod is inserted into the fourth connection hole, and a sixth connection hole is provided in the second end portion. The frame assembly further includes: a second connecting member, and the second connecting member can sequentially pass through the fifth connection hole and the sixth connection hole so that the connecting tie rod is limited to the second side plate. In the above embodiment, the first end portion of the connecting tie rod is connected to the first side plate through the connecting member, and the second end portion of the connecting tie rod is connected to the second side plate through the second connecting member. The connecting member and the second connecting member detachably connect the connecting tie rod to the first side plate and the second side plate, which is beneficial to reducing the difficulty of the operation steps and improving the assembly efficiency of the frame assembly.

[0011] According to any of the foregoing embodiments of the first aspect of the present application, a fourth connection hole is provided on the surface of the second side plate facing the first side plate, and the second end portion is threadedly connected to the fourth connection hole. In the above embodiment, the first end portion of the connecting tie rod is connected to the first side plate through a connecting member, and the second end portion is threadedly connected to the fourth connection hole, so that the frame assembly can adapt to different installation environments, improve the applicability of the frame assembly, facilitate reducing the difficulty of operation steps, and improve the assembly efficiency of the frame assembly.

[0012] According to any of the foregoing embodiments of the first aspect of the present application, a fourth connection hole is provided on the surface of the second side plate facing the first side plate, and the second end portion is snap-connected to the fourth connection hole, so that the connecting tie rod is axially limited relative to the second side plate. In the above embodiment, the first end portion of the connecting tie rod is connected to the first side plate through a connecting member, and the second end portion is snap-connected to the fourth connection hole, so that the frame assembly can adapt to different installation environments, improve the applicability of the frame assembly, facilitate reducing the difficulty of operation steps, and improve the assembly efficiency of the frame assembly.

[0013] According to the foregoing embodiment of the first aspect of the present application, the second end portion is provided with a flange and a boss arranged at intervals along the axis. The fourth connection hole is a through hole, and the inner wall of the fourth connection hole is provided with a step extending along the circumference. The step is provided with an opening. After the boss passes through the opening and rotates around the central axis of the connecting tie rod, the step is snap-connected between the flange and the boss, so that the connecting tie rod is axially limited relative to the second side plate. In the above embodiment, by providing a flange and a boss arranged at intervals along the axis at the second end portion, and providing a step extending along the circumference on the inner wall of the fourth connection hole, and the step is provided with an opening. After the connecting tie rod is rotated along the central axis, the step is snap-connected between the flange and the boss, which is beneficial to realizing the axial limitation of the connecting tie rod, facilitating reducing the difficulty of operation steps, and improving the assembly efficiency of the frame assembly.

[0014] In a second aspect, an embodiment of the present application provides a press-connected power module. The press-connected power module includes: a press-connected power string and a frame assembly of the power module according to any of the foregoing embodiments of the first aspect of the present application. The press-connected power string is arranged in a pressing space between the first side plate and the second side plate of the frame assembly.

[0015] In the embodiment of the present application, a crimping power string and a frame component are provided in a crimping type power module. The crimping power string is arranged in the pressing space between the first side plate and the second side plate of the frame component. The surface of the first side plate of the frame component facing the second side plate is provided with a first connection hole, and a second connection hole communicating with the first connection hole is arranged on the side surface of the first side plate. A third connection hole is arranged at the first end of the connecting pull rod. The connecting piece can sequentially pass through the second connection hole and the third connection hole, so that the connecting pull rod is axially limited relative to the first side plate, and the connecting pull rod is detachably connected to the first side plate. While meeting the reliability of the frame component, the difficulty of the operation steps is reduced, and the assembly efficiency of the frame component is improved. And the connecting pull rod is not arranged protruding outside the first side plate, which is beneficial to reducing the volume of the crimping type power module. Description of the Drawings

[0016] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the frame component of the power module of the present application;

[0017] Figure 2 It is an exploded structure schematic diagram of the first side plate of an embodiment of the frame component of the power module of the present application;

[0018] Figure 3 It is a schematic diagram of the first side plate of an embodiment of the frame component of the power module of the present application;

[0019] Figure 4 It is a cross-sectional view of the first connection hole of the first side plate of an embodiment of the frame component of the power module of the present application;

[0020] Figure 5 It is a schematic diagram of the connecting pull rod of an embodiment of the frame component of the power module of the present application;

[0021] Figure 6 It is a cross-sectional view of the connection between the connecting pull rod and the first side plate of an embodiment of the frame component of the power module of the present application;

[0022] Figure 7 It is a schematic diagram of the connecting piece of an embodiment of the frame component of the power module of the present application;

[0023] Figure 8 It is a schematic diagram of the first sealing plate of an embodiment of the frame component of the power module of the present application;

[0024] Figure 9 It is a schematic diagram of the second side plate of an embodiment of the frame component of the power module of the present application;

[0025] Figure 10 It is a cross-sectional view of the fourth connection hole of the second side plate of an embodiment of the frame component of the power module of the present application;

[0026] Figure 11Schematic diagram of another embodiment of the frame component of the power module of the present application;

[0027] Figure 12 Schematic diagram of the structure of the second side plate in yet another embodiment of the frame component of the power module of the present application;

[0028] Figure 13 Schematic diagram of the structure of the connecting tie rod in yet another embodiment of the frame component of the power module of the present application;

[0029] Figure 14 Schematic diagram of the structure of the connecting tie rod passing through the fourth connection hole in yet another embodiment of the frame component of the power module of the present application;

[0030] Figure 15 Schematic diagram of the structure of the boss passing through the opening in yet another embodiment of the frame component of the power module of the present application;

[0031] Figure 16 Schematic diagram of the structure of the connecting tie rod connected to the second side plate in yet another embodiment of the frame component of the power module of the present application;

[0032] Figure 17 Schematic diagram of the overall structure of one embodiment of the crimp type power module of the present application.

[0033] Explanation of the reference numerals in the drawings:

[0034] Frame component of the power module - 100, Crimp type power module - 200;

[0035] First side plate - 110, Second side plate - 120, Connecting tie rod - 130, Connector - 140, First sealing plate - 150, Fixing member - 160, Second sealing plate - 170, Second connector - 180, Crimp power string - 210;

[0036] First connection hole - 111, Second connection hole - 112, Fourth connection hole - 121, Fifth connection hole - 122, First end - 131, Second end - 132, Main body part - 133, Groove - 141, Fixing hole - 151, Second groove - 181;

[0037] Step - 1211, Opening - 1212, Third connection hole - 1311, Sixth connection hole - 1321, Flange - 1322, Boss - 1323, Internal thread - 1411. Detailed implementation manners

[0038] 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 the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present application.

[0039] It should be noted that all 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 accompanying drawings). If the specific posture changes, the directional indications will also change accordingly.

[0040] In addition, the descriptions involving "first", "second", etc. in the present application are only for descriptive purposes, and cannot be understood as indicating or implying their relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the fact that those of ordinary skill in the art can implement them. When the combination of technical solutions conflicts with each other 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 the present application.

[0041] The embodiments of the present application provide a frame assembly of a power module and a crimped power module, which can help simplify the assembly steps and improve the assembly efficiency.

[0042] As Figures 1 to 2 shown, the embodiments of the present application provide a frame assembly 100 of a power module. The frame assembly 100 includes: a first side plate 110, a second side plate 120, a connecting tie rod 130, and a connecting member 140. The first side plate 110 and the second side plate 120 are parallel and oppositely arranged. As Figures 3 to 4 shown, the surface of the first side plate 110 facing the second side plate 120 is provided with a first connection hole 111. A second connection hole 112 communicating with the first connection hole 111 is arranged on the side surface of the first side plate 110. The first end 131 of the connecting tie rod 130 is inserted into the first connection hole 111 to be connected to the first side plate 110. The second end 132 of the connecting tie rod 130 is connected to the second side plate 120, so as to form a pressing space for pressing a power string between the first side plate 110 and the second side plate 120. As Figure 5 shown, the first end 131 is provided with a third connection hole 1311. The connecting member 140 can sequentially pass through the second connection hole 112 and the third connection hole 1311, so that the connecting tie rod 130 is axially limited relative to the first side plate 110.

[0043] When the embodiment of the present application is installed, first, the first side plate 110 and the second side plate 120 are arranged in parallel and opposite to each other. A first connection hole 111 is provided on the surface of the first side plate 110 facing the second side plate 120. A second connection hole 112 communicating with the first connection hole 111 is provided on the side surface of the first side plate 110. A third connection hole 1311 is provided at the first end 131 of the connecting pull rod 130. When the connecting pull rod 130 is installed on the first side plate 110, the connecting piece 140 can sequentially pass through the second connection hole 112 and the third connection hole 1311, so that the connecting pull rod 130 is axially limited relative to the first side plate 110, so as to detachably connect the connecting pull rod 130 with the first side plate 110, and both ends of the connecting pull rod 130 are respectively limited and connected to the first side plate 110 and the second side plate 120 through the connecting piece 140. A pressing space is formed between the first side plate 110 and the second side plate 120. The crimping power string is arranged in the pressing space, and the crimping power string is pressed and fixed by the first side plate 110 and the second side plate 120. The embodiment of the present application reduces the difficulty of operation steps while meeting the reliability of the frame assembly 100, and improves the assembly efficiency of the frame assembly 100. And the connecting pull rod 130 is not protruded outside the first side plate 110, which is beneficial to reducing the volume of the frame assembly 100 and improving the aesthetics of the frame assembly 100.

[0044] It can be understood that the second side plate 120 can adopt the same plate structure as the first side plate 110, or can adopt an integral side plate structure different from the first side plate 110. Those skilled in the art can adaptively set the second side plate 120 according to actual needs.

[0045] It can be understood that the present application does not limit the number of the connecting pull rods 130. The connecting pull rods 130 can be set to three, four, six or other numbers, etc. Those skilled in the art can determine the number of the connecting pull rods 130 according to actual needs to meet the reliability of the frame assembly 100. As Figure 1 shown, in an embodiment of the present application, the number of the connecting pull rods 130 is four, and the central connection lines of the four connecting pull rods 130 are arranged in a parallelogram to improve the reliability of the frame assembly 100, and at the same time facilitate the connecting piece 140 to sequentially pass through the second connection hole 112 and the third connection hole 1311 to install the connecting pull rod 130 on the first side plate 110.

[0046] As Figure 5As shown, the connecting tie rod 130 further includes a main body portion 133 located between the first end portion 131 and the second end portion 132. The diameter of the first end portion 131 is smaller than that of the main body portion 133. By setting the diameter of the first end portion 131 to be smaller than that of the main body portion 133, when the first end portion 131 extends into the first connection hole 111, the diameter of the main body portion 133 is larger than that of the first connection hole 111, and a shoulder is formed between the first end portion 131 and the main body portion 133, preventing part of the structure of the main body portion 133 from also extending into the first connection hole 111, which may affect the connection between the first end portion 131 and the first connection hole 111, facilitating the alignment connection between the first end portion 131 and the first connection hole 111, and improving the assembly efficiency of the frame assembly 100. As Figure 6 shown, the diameter of the first end portion 131 matches that of the first connection hole 111, facilitating the first end portion 131 to extend into the first connection hole 111 for mating connection with the first connection hole 111, and enhancing the structural precision of the frame assembly 100.

[0047] As Figures 6 to 7 shown, one end of the connecting member 140 facing the outside of the orifice of the second connection hole 112 is provided with a groove 141. The inner wall of the groove 141 is provided with an internal thread 1411. A detachable connecting screw is arranged in the groove 141, and the outside of the connecting screw has a connecting thread matching the internal thread 1411. By providing a groove 141 at one end of the connecting member 140 facing the outside of the orifice of the second connection hole 112, with an internal thread 1411 provided on the inner wall of the groove 141, the connecting screw is detachably arranged in the groove 141, and the outside of the connecting screw has a connecting thread matching the internal thread 1411. After screwing the connecting screw into the groove 141, it is convenient to pull out the connecting member 140 from the second connection hole 112 of the first side plate 110 when disassembling the frame assembly 100. In other embodiments, a connecting card slot may also be provided at one end of the connecting member 140 facing the outside of the orifice of the second connection hole 112, and the connecting member 140 is pulled out from the second connection hole 112 through the mutual matching connection of the connecting buckle and the connecting card slot.

[0048] As Figure 2 shown, the frame assembly 100 further includes: a first sealing plate 150, which is detachably connected to the first side plate 110. The first sealing plate 150 covers the orifice of the second connection hole 112, and the connecting member 140 is located inside the second connection hole 112. By detachably arranging the first sealing plate 150 at the orifice of the second connection hole 112 and the connecting member 140 being located inside the second connection hole 112, it is beneficial to prevent the connecting member 140 from falling off from the second connection hole 112 and avoid the connecting tie rod 130 from falling off from the first side plate 110. It can be understood that the width of the first sealing plate 150 is smaller than the side width of the first side plate 110, so that the first sealing plate 150 does not protrude from the side of the first side plate 110, which is beneficial to improving the aesthetics of the frame assembly 100.

[0049] As Figure 8 shown, the first sealing plate 150 further includes fixing holes 151, and the frame assembly 100 further includes fixing members 160. The fixing members 160 can be matingly connected with the fixing holes 151 so that the first sealing plate 150 is limited to the first side plate 110. In one embodiment, the fixing members 160 are countersunk screws. The fixing members 160 can be screwed into the fixing holes 151 to mount the first sealing plate 150 on the side surface of the first side plate 110, and the fixing holes 151 have threads that match the countersunk screws. In other embodiments, the first sealing plate 150 can also be mounted on the side surface of the first side plate 110 by means of snap fasteners or pins.

[0050] As Figures 9 to 10 shown, in one embodiment, the surface of the second side plate 120 facing the first side plate 110 is provided with fourth connection holes 121, and a fifth connection hole 122 communicating with the fourth connection holes 121 is provided on the side surface of the second side plate 120. The second end portion 132 of the connecting pull rod 130 is inserted into the fourth connection holes 121, and the second end portion 132 is provided with sixth connection holes 1321. The frame assembly 100 further includes: a second connecting member 180. The second connecting member 180 can sequentially pass through the fifth connection holes 122 and the sixth connection holes 1321 so that the connecting pull rod 130 is axially limited relative to the second side plate 120. It should be noted that the connecting members 140 and the second connecting member 180 can be in the form of connecting pins, keys, etc. The present application does not limit the forms of the connecting members 140 and the second connecting member 180.

[0051] In the installation of the embodiment of the present application, the surface of the second side plate 120 facing the first side plate 110 is provided with fourth connection holes 121, a fifth connection hole 122 communicating with the fourth connection holes 121 is provided on the side surface of the second side plate 120. The second end portion 132 of the connecting pull rod 130 is inserted into the fourth connection holes 121, and the second end portion 132 is provided with sixth connection holes 1321. When installing the connecting pull rod 130 on the second side plate 120, the second connecting member 180 can sequentially pass through the fifth connection holes 122 and the sixth connection holes 1321 so that the connecting pull rod 130 is axially limited relative to the second side plate 120, so as to detachably connect the connecting pull rod 130 and the second side plate 120. While meeting the reliability of the frame assembly 100, the difficulty of the operation steps is reduced, and the assembly efficiency of the frame assembly 100 is improved. And the connecting pull rod 130 is not protruded outside the second side plate 110, which is beneficial to reducing the volume of the frame assembly 100 and improving the aesthetics of the frame assembly 100.

[0052] In one embodiment, as Figure 10As shown, the frame component 100 further includes: a second sealing plate 170, which is detachably connected to the second side plate 120. The second sealing plate 170 covers the orifice of the fifth connection hole 122, and the second connecting member 180 is located within the fifth connection hole 122. By detachably providing the second sealing plate 170 at the orifice of the fifth connection hole 122, it is beneficial to prevent the second connecting member 180 from falling off from the fifth connection hole 122, and it is beneficial to avoid the connecting pull rod 130 from falling off from the second side plate 120. It can be understood that the width of the second sealing plate 170 is smaller than the side width of the second side plate 120, so that the second sealing plate 170 does not protrude from the side of the second side plate 120, which is beneficial to improving the aesthetics of the frame component 100.

[0053] As Figure 11 shown, in another embodiment, a fourth connection hole 121 is provided on the surface of the second side plate 120 facing the first side plate 110, and the second end portion 132 is threadedly connected to the fourth connection hole 121. In the above embodiment, the first end portion 131 of the connecting pull rod 130 is connected to the first side plate 110 through the connecting member 140, and the second end portion 132 is threadedly connected to the fourth connection hole 121, so that the frame component 100 can adapt to different installation environments, improve the applicability of the frame component 100, is beneficial to reducing the difficulty of the operation steps, and improves the assembly efficiency of the frame component 100.

[0054] As Figure 12 shown, in still another embodiment, a fourth connection hole 121 is provided on the surface of the second side plate 120 facing the first side plate 110. As Figure 16 shown, the second end portion 132 is snap-connected to the fourth connection hole 121, so that the connecting pull rod 130 is axially limited relative to the second side plate 120. In the above embodiment, the first end portion 131 of the connecting pull rod 130 is connected to the first side plate 110 through the connecting member 140, and the second end portion 132 is snap-connected to the fourth connection hole 121, so that the frame component 100 can adapt to different installation environments, improve the applicability of the frame component 100, is beneficial to reducing the difficulty of the operation steps, and improves the assembly efficiency of the frame component 100.

[0055] As Figure 13 shown, the second end portion 132 is provided with a flange 1322 and a boss 1323 that are axially spaced apart. As Figures 12 to 16 shown, the fourth connection hole 121 is a through hole, and the inner wall of the fourth connection hole 121 is provided with a step 1211 extending in the circumferential direction. The step 1211 is provided with an opening 1212. As Figures 14 to 16As shown in the figure, after the boss 1323 passes through the opening 1212 and rotates around the central axis of the connecting tie rod 130, the step 1211 is clamped between the flange 1322 and the boss 1323, so that the connecting tie rod 130 is axially limited relative to the second side plate 120, and the second end 132 can be clamped with the fourth connecting hole 121. By providing the flange 1322 and the boss 1323 on the second end 132 at intervals along the axis, and providing a step 1211 extending circumferentially on the inner wall of the fourth connecting hole 121, and the step 1211 is provided with an opening 1212. After the rotating connecting tie rod 130 rotates along the central axis, the step 1211 is clamped between the flange 1322 and the boss 1323, which is beneficial to realizing the axial limit of the connecting tie rod 130, reducing the difficulty of the operation steps, and improving the assembly efficiency of the frame assembly 100.

[0056] As Figure 17 shown in the figure, the embodiment of the present application also provides a press-connected power module, and the press-connected power module includes: a press-connected power string 210 and a frame assembly 100 of the power module according to any one of the foregoing embodiments of the present application. The press-connected power string 210 is disposed in the pressing space between the first side plate 110 and the second side plate 120 of the frame assembly 100.

[0057] As Figures 1 to 2 shown in the figure, the embodiment of the present application provides a frame assembly 100 of a power module. The frame assembly 100 includes: a first side plate 110, a second side plate 120, a connecting tie rod 130, and a connecting member 140. The first side plate 110 and the second side plate 120 are parallel and oppositely arranged. As Figures 3 to 4 shown in the figure, the surface of the first side plate 110 facing the second side plate 120 is provided with a first connecting hole 111, and the side surface of the first side plate 110 is provided with a second connecting hole 112 communicating with the first connecting hole 111. The first end 131 of the connecting tie rod 130 is inserted into the first connecting hole 111 to be connected with the first side plate 110, and the second end 132 of the connecting tie rod 130 is connected with the second side plate 120, so that a pressing space for pressing the press-connected power string 210 is formed between the first side plate 110 and the second side plate 120. As Figure 5 shown in the figure, the first end 131 is provided with a third connecting hole 1311, and the connecting member 140 can sequentially pass through the second connecting hole 112 and the third connecting hole 1311, so that the connecting tie rod 130 is axially limited relative to the first side plate 110.

[0058] In the embodiment of the present application, a crimping power string 210 and a frame assembly 100 are provided in a crimping type power module. The crimping power string 210 is arranged in a pressing space between a first side plate 110 and a second side plate 120 of the frame assembly 100. A first connection hole 111 is provided on the surface of the first side plate 110 of the frame assembly 100 facing the second side plate 120, and a second connection hole 112 communicating with the first connection hole 111 is arranged on the side surface of the first side plate 110. A third connection hole 1311 is provided at a first end portion 131 of the connection pull rod 130. When the connection pull rod 130 is installed on the first side plate 110, the connecting member 140 can sequentially pass through the second connection hole 112 and the third connection hole 1311, so that the connection pull rod 130 is axially limited relative to the first side plate 110, and the connection pull rod 130 is detachably connected to the first side plate 110. While meeting the reliability of the frame assembly 100, the difficulty of operation steps is reduced, and the assembly efficiency of the frame assembly 100 is improved. Moreover, the connection pull rod 130 is not provided protruding outside the first side plate 110, which is beneficial to reducing the volume of the crimping type power module.

[0059] It can be understood that the crimping type power device in the crimping power string 210 can be, but is not limited to, an integrated gate-commutated thyristor, and can also be an insulated gate bipolar transistor. The present application does not limit the type of the crimping power string 210, nor does it specifically limit the application scope of the frame assembly 100.

[0060] 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 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 frame component of a power module, characterized in that The frame assembly includes: A first side plate and a second side plate, the first side plate and the second side plate are parallel and oppositely arranged, a first connection hole is provided on the surface of the first side plate facing the second side plate, and a second connection hole communicating with the first connection hole is provided on the side surface of the first side plate; A connecting pull rod, a first end portion of the connecting pull rod is inserted into the first connection hole to be connected with the first side plate, a second end portion of the connecting pull rod is connected with the second side plate, so that a pressing space for pressing and connecting a power string is formed between the first side plate and the second side plate, and a third connection hole is provided at the first end portion; and A connecting member, the connecting member can sequentially pass through the second connection hole and the third connection hole, so that the connecting pull rod is limited to the first side plate.

2. The frame assembly of the power module according to claim 1, characterized in that, The connecting pull rod further includes a main body portion between the first end portion and the second end portion, the diameter of the first end portion is smaller than the diameter of the main body portion, and the diameter of the first end portion matches the diameter of the first connection hole.

3. The frame component of the power module according to claim 1, characterized in that, One end of the connecting member facing the outside of the orifice of the second connection hole is provided with a groove, the side wall of the groove is provided with internal threads, and a detachable connecting screw is arranged in the groove, and the outside of the connecting screw has connecting threads matching the internal threads.

4. The frame component of the power module according to claim 3, characterized in that, The frame assembly further includes: A first sealing plate, the first sealing plate is connected with the first side plate and covers the orifice of the second connection hole, and the connecting member is located in the second connection hole.

5. The frame component of the power module according to claim 4, characterized in that, The first sealing plate further includes a fixing hole, the frame assembly further includes a fixing member, and the fixing member can be connected with the fixing hole in a matching manner so that the first sealing plate is limited to the first side plate.

6. The frame assembly of the power module according to any one of claims 2 to 5, characterized in that A fourth connection hole is provided on the surface of the second side plate facing the first side plate, a fifth connection hole communicating with the fourth connection hole is provided on the side surface of the second side plate, a second end portion of the connecting pull rod is inserted into the fourth connection hole, a sixth connection hole is provided at the second end portion, and the frame assembly further includes: A second connecting member, the second connecting member can sequentially pass through the fifth connection hole and the sixth connection hole, so that the connecting pull rod is limited to the second side plate.

7. The frame component of the power module according to any one of claims 2 to 5, characterized in that A fourth connection hole is provided on the surface of the second side plate facing the first side plate, and the second end portion is threadedly connected with the fourth connection hole.

8. The frame component of the power module according to any one of claims 2 to 5, characterized in that A fourth connection hole is provided on the surface of the second side plate facing the first side plate, and the second end portion is snap-connected with the fourth connection hole, so that the connecting pull rod is axially limited relative to the second side plate.

9. The frame assembly of the power module according to claim 8, characterized in that The second end portion is provided with a flange and a boss arranged at intervals along the axis, the fourth connection hole is a through hole, the inner wall of the fourth connection hole is provided with a step extending along the circumference, the step is provided with an opening portion, after the boss passes through the opening portion and rotates around the central axis of the connecting pull rod, the step is snap-connected between the flange and the boss, so that the connecting pull rod is axially limited relative to the second side plate.

10. A crimped power module, characterized in that, The crimping type power module includes: A crimping power string; and The frame assembly of the power module according to any one of claims 1 to 9, and the crimping power string is arranged in the pressing space between the first side plate and the second side plate of the frame assembly.

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