Clamping hook structure for IGBT (Insulated Gate Bipolar Translator) module

Abstract

The utility model relates to the technical field of IGBT modules, and discloses a clamping hook structure for an IGBT module, which comprises a shell main body and a cover plate, a plurality of groups of clamping hook blocks are fixed on the inner side wall of the shell main body, the upper surfaces of the clamping hook blocks are designed in an inclined structure from top to bottom, and barrier strips for supporting the cover plate are fixed on the side wall of the shell main body; the upper surface of the cover plate is provided with sinking table parts buckled with the clamping hook blocks, the clamping hook blocks are arranged in four groups, each group of clamping hook blocks are located at the center of each side wall surface of the shell main body, and the buckling position of the bottom of the cover plate is provided with a fillet III. The cover plate and the shell body are clamped smoothly, the clamping hooks are not broken or loosened, the effective and reliable assembly effect is achieved, damage is reduced, the service life of the structure is prolonged, and the actual use requirement is met.

Description

Technical Field

[0001] This utility model relates to the field of IGBT module technology, specifically to a hook structure for IGBT modules. Background Technology

[0002] IGBT modules are key power semiconductor devices used in power electronic equipment. They combine the advantages of metal-oxide-semiconductor field-effect transistors and bipolar transistors, featuring high input impedance and low on-state voltage characteristics.

[0003] Existing IGBT module hook structures are generally designed on the back of the cover plate. The cover plate hooks cooperate with the housing bosses to achieve the assembly and use of the IGBT module housing and cover plate. However, the IGBT module hook structure often suffers from interference breakage failure or hook loosening, which prevents the housing and cover plate from being assembled. Therefore, we propose a hook structure for IGBT modules to solve the above-mentioned problems. Utility Model Content

[0004] To address the shortcomings of existing technologies, this utility model provides a hook structure for IGBT modules, which solves the problem that hook failure due to interference fit or hook loosening often occurs in IGBT module hook structures, preventing the assembly of the housing and cover plate.

[0005] To achieve the above objectives, this utility model is implemented through the following technical solution: a hook structure for an IGBT module, comprising a housing body and a cover plate, wherein multiple sets of hook blocks are fixed to the inner sidewall of the housing body;

[0006] The upper surface of the hook block is designed with an inclined structure from top to bottom;

[0007] The side wall of the main body of the housing is fixed with a baffle strip to support the cover plate;

[0008] The upper surface of the cover plate has a recessed section that engages with the hook block.

[0009] Preferably, the hook blocks are provided in four sets, and each set of hook blocks is located at the center of each side wall of the housing body.

[0010] Preferably, the bottom latch of the cover plate is provided with a rounded corner.

[0011] Preferably, the bottom of the guide slope of the hook block is provided with a rounded corner portion one, and the bottom of the hook block is provided with a rounded corner portion two.

[0012] Preferably, the partition strip has a break opening on one side of the hook block.

[0013] Preferably, the upper surface of the partition strip and the bottom of the hook block form a locking cavity, and the locking cavity is adapted to the thickness from the bottom of the cover plate to the bottom of the recessed platform.

[0014] Beneficial effects

[0015] This utility model provides a latch structure for IGBT modules. Compared with the prior art, it has the following advantages:

[0016] Beneficial effects:

[0017] This IGBT module uses a snap-fit ​​structure, which allows the cover plate to smoothly lock into the main body of the housing without breaking or loosening the snap-fit. This achieves an effective and reliable assembly effect, reduces damage, extends the service life of the structure, and meets actual usage requirements. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the existing technology structure;

[0019] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0020] Figure 3 This is a partial sectional view of the overall structure of this utility model;

[0021] Figure 4 This is a structural diagram showing the disassembly of the main body and cover plate of this utility model.

[0022] In the figure: 101, main body of the shell; 102, cover plate; 103, hook block; 104, recessed platform; 105, partition strip; 106, joint opening; 107, rounded corner part one; 108, rounded corner part two; 109, rounded corner part three; 110, locking cavity. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] like Figure 2 As shown:

[0025] A snap-fit ​​structure for an IGBT module includes a housing body 101 and a cover plate 102.

[0026] In this implementation plan: In order to solve the technical problems existing in the prior art, such as the "existing IGBT module hook structure is generally designed on the back of the cover plate, and the cover plate hook and the housing boss cooperate with each other to realize the assembly and use of the IGBT module housing and the cover plate. However, the IGBT module hook structure often suffers from interference breakage failure or hook loosening, which makes it impossible to assemble the housing and the cover plate." In combination, this problem is obviously a real and difficult problem to solve.

[0027] Furthermore:

[0028] like Figures 2-4 As shown:

[0029] Based on the above: multiple sets of hook blocks 103 are fixed to the inner side wall of the main body 101 of the housing;

[0030] The upper surface of the hook block 103 is designed with an inclined structure from top to bottom;

[0031] A baffle 105 is fixed to the side wall of the housing body 101 to support the cover plate 102;

[0032] The upper surface of the cover plate 102 is provided with a recessed portion 104 that engages with the hook block 103;

[0033] There are four sets of hook blocks 103, and each set of hook blocks 103 is located at the center of each side wall of the housing body 101.

[0034] The bottom latch of the cover plate 102 is provided with a rounded corner 3 109;

[0035] The bottom of the guide slope of the hook block 103 is provided with a rounded corner part 107, and the bottom of the hook block 103 is provided with a rounded corner part 108.

[0036] The partition strip 105 has a break opening 106 on one side of the hook block 103;

[0037] The upper surface of the partition strip 105 and the bottom of the hook block 103 form a locking cavity 110, which is adapted to the thickness of the bottom of the cover plate 102 to the bottom of the recessed platform 104.

[0038] In this implementation scheme: the IGBT module uses a snap-fit ​​structure during use;

[0039] Each side of the inner wall of the housing body 101 is fixed with a hook block 103. The top of these hook blocks 103 is designed to be inclined so as to better cooperate with the rounded corner 3 109 at the bottom of the cover plate 102. The bottom of the cover plate 102 is designed with a rounded corner 3 109 corresponding to the position of the hook block 103. This design allows the cover plate 102 to smoothly connect with the hook block 103 when it is inserted into the housing body 101.

[0040] The function of the latch block 103 is to provide support when the cover plate 102 is placed at the top of the partition strip 105, and the function of the partition strip 105 is to prevent the cover plate 102 from being excessively inserted into the housing body 101. The inclined surface of the latch block 103 and the rounded corner 109 at the bottom of the cover plate 102 form a firm fastening, thereby fixing the cover plate 102.

[0041] The partition strip 105 has a break opening 106 near the hook block 103. The break opening 106 can provide a precise positioning point for the cover plate 102, ensuring that the cover plate 102 can accurately align with the hook block 103 during installation, thereby improving the assembly accuracy.

[0042] The bottom of the guide slope of the hook block 103 is provided with a rounded corner part 107 and a rounded corner part 108, which can better guide the positioning and movement of the cover plate 102, so that the cover plate 102 can smoothly and accurately dock with the hook block 103 during the closing process, which can reduce the friction between the cover plate 102 and the hook block 103 during the closing process, reduce noise, and reduce the damage that may be caused by direct collision.

[0043] The top of the cover plate 102 is provided with a recessed platform 104, which is the position where the bottom of the hook block 103 is fastened, ensuring that the cover plate 102 will not easily fall off after being fastened.

[0044] When installing the cover plate 102, first align the rounded corner 109 at the bottom of the cover plate 102 with the hook block 103 inside the housing body 101, and then gently press the cover plate 102. As the cover plate 102 is pressed, it moves downward smoothly. At the same time, the bottom surface of the hook block 103 and the recessed portion 104 at the top of the cover plate 102 are smoothly engaged. The cover plate 102 is engaged in the engagement cavity 110 formed by the upper surface of the partition strip 105 and the bottom of the hook block 103, thus forming an engagement connection.

[0045] This operation establishes a hook structure that allows the cover plate 102 to smoothly engage with the housing body 101 without breaking or loosening the hook. This achieves an effective and reliable assembly, reduces damage, extends the service life of the structure, and meets actual usage requirements.

[0046] The working principle and usage process of this utility model: The IGBT module uses a hook structure. When installing the cover plate 102, first align the rounded corner 109 at the bottom of the cover plate 102 with the hook block 103 inside the housing body 101, and then gently press the cover plate 102. As the cover plate 102 is pressed, it moves downward smoothly. At the same time, the bottom surface of the hook block 103 and the recessed portion 104 at the top of the cover plate 102 are smoothly engaged. The cover plate 102 is engaged in the engagement cavity 110 formed by the upper surface of the partition strip 105 and the bottom of the hook block 103, thus forming an engagement connection.

[0047] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

Claims

1. A latch structure for an IGBT module, comprising a housing body (101) and a cover plate (102), characterized in that, Multiple sets of hook blocks (103) are fixed to the inner sidewall of the main body of the housing (101); The upper surface of the hook block (103) is designed with an inclined structure from top to bottom; The side wall of the housing body (101) is fixed with a partition strip (105) to support the cover plate (102); The upper surface of the cover plate (102) is provided with a recessed portion (104) that engages with the hook block (103).

2. The IGBT module latch structure according to claim 1, characterized in that: The hook blocks (103) are provided in four sets, and each set of hook blocks (103) is located at the center of each side wall of the housing body (101).

3. The IGBT module latch structure according to claim 1, characterized in that: The bottom latch of the cover plate (102) is provided with a rounded corner (109).

4. The IGBT module latch structure according to claim 2, characterized in that: The bottom of the guide slope of the hook block (103) is provided with a rounded corner part one (107), and the bottom of the hook block (103) is provided with a rounded corner part two (108).

5. The IGBT module latch structure according to claim 1, characterized in that: The partition strip (105) has a break opening (106) on one side of the hook block (103).

6. The IGBT module latch structure according to claim 1, characterized in that: The upper surface of the partition strip (105) and the bottom of the hook block (103) form a locking cavity (110), and the locking cavity (110) is adapted to the thickness from the bottom of the cover plate (102) to the bottom of the recessed platform (104).

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