Insulated gate bipolar transistor (IGBT) module placing tool

Abstract

The utility model discloses an IGBT module placing tool, which comprises a placing bottom plate and an IGBT module body, a placing hole is arranged on the side edge of the IGBT module body, a column body is arranged on the placing bottom plate, a clamping column is arranged at the top of the column body, a supporting column is arranged in the middle of the clamping column, a limiting mechanism is arranged on the supporting column, and the IGBT module body is limited by the limiting mechanism. According to the IGBT module placing tool, the spring enables the stop lever to be unfolded, the stop lever abuts against the placing bottom plate after being unfolded, the placing bottom plate is limited after the stop lever is unfolded, then the placing bottom plate and an IGBT module body can be placed stably, mutual separation cannot occur in the whole taking process, the pull rope pulls the stop lever to retract so that the stop lever can be kept vertical, taking of the IGBT module body cannot be affected, and the IGBT module body can be placed stably. The device has the function of directly picking up the IGBT module body from the tool for assembly.

Description

Technical Field

[0001] This utility model relates to the field of IGBT module placement technology, specifically to an IGBT module placement fixture. Background Technology

[0002] IGBT modules are modular semiconductor products that are packaged by bridging IGBTs and FWDs through a specific circuit. The packaged IGBT modules are directly used in equipment such as frequency converters and UPS uninterruptible power supplies. During the placement and assembly of IGBT modules, IGBT module placement fixtures are usually required. When assembling IGBT modules, thermal grease is applied to the IGBT module, and it is held by hand. Then, the IGBT module is placed in the material box with the mounting contact surface facing up. During assembly, the IGBT module is directly taken from the fixture and reversed for assembly.

[0003] For example, the IGBT module placement fixture with publication number CN214418759U has bolt holes on the top surface of the placement base plate. A support mechanism is inserted inside the bolt holes. The support mechanism includes a fixing bolt, a column, and a locking post. The fixing bolt is inserted inside the bolt hole. One end of the fixing bolt is fixed with a column, and the end of the column away from the fixing bolt is equipped with a locking post. The bottom surface of the IGBT module has four sets of through holes, and the size of the four sets of through holes is adapted to the size of the locking post.

[0004] The above-mentioned IGBT module placement fixture aligns the through holes on the IGBT module with the retaining posts and inserts it. At this point, the IGBT module placement is complete. The support mechanism only limits the IGBT module laterally. When the whole assembly is picked up and placed vertically, the placed IGBT module is prone to falling and cannot be completely fixed. Utility Model Content

[0005] The purpose of this invention is to provide an IGBT module placement fixture to solve the problem mentioned in the background art that current IGBT module placement fixtures on the market cannot completely fix the IGBT module.

[0006] To achieve the above objectives, this utility model provides the following technical solution: an IGBT module placement fixture, including a placement base plate and an IGBT module body, a placement hole is provided on the side of the IGBT module body, a column is installed on the placement base plate, a locking post is installed on the top of the column, a support post is provided in the middle of the locking post, and a limit mechanism is provided on the support post to limit the IGBT module body.

[0007] Preferably, the base plate has mounting holes, and the locking post, support post, and post body have aligned through grooves that are aligned with the mounting holes.

[0008] Preferably, the limiting mechanism includes a stop bar and a spring, the stop bar being rotatably connected to the outside of the support column at an equal angle, and the spring being installed between the stop bar and the support column.

[0009] Preferably, a pull rope is installed at the bottom of the stop bar, and the other ends of each pull rope are connected together.

[0010] Preferably, the support column has through holes at equal angles around its perimeter, and the through holes are connected to the through grooves. The pull rope passes through the through holes, the mounting holes, and the inside of the through grooves.

[0011] Preferably, the top edge of the stop bar contacts the locking post, the diameter of the stop bar is smaller than the distance difference between the side edge of the locking post and the side edge of the support post, and the rotation angle of the stop bar is 90 degrees.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] 1. This utility model is equipped with a stop bar and a spring. The spring causes the stop bar to unfold, and the unfolded stop bar comes into contact with the placement base plate. The unfolded stop bar limits the placement base plate, thereby ensuring stable placement between the placement base plate and the IGBT module body, and preventing them from separating during the process of picking up the whole unit.

[0014] 2. This utility model features a pull rope. Pulling the rope retracts the stop bar, keeping it vertical and preventing it from obstructing the picking up of the IGBT module body. It allows for direct picking up of the IGBT module body from the fixture for assembly, saving time. Multiple IGBT module bodies can be placed simultaneously, allowing for assembly after multiple IGBT modules have been coated, thus improving assembly efficiency and facilitating practical use. Attached Figure Description

[0015] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0016] Figure 2 This is a schematic diagram of the bottom plate structure of this utility model from below;

[0017] Figure 3 This is a schematic diagram of the three-dimensional structure of the column of this utility model;

[0018] Figure 4 This is a schematic diagram of the column structure of this utility model from below;

[0019] Figure 5 This is a schematic diagram of the base plate structure of this utility model.

[0020] In the diagram: 1. Base plate; 2. Column; 3. IGBT module body; 4. Pull rope; 5. Stop bar; 6. Locking post; 7. Support post; 8. Spring; 9. Through hole; 10. Mounting hole; 11. Through groove; 12. Placement hole. Detailed Implementation

[0021] 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.

[0022] Please see Figures 1-5 The present invention provides the following technical solution:

[0023] An IGBT module placement fixture includes a placement base plate 1 and an IGBT module body 3. The IGBT module body 3 has a placement hole 12 on its side. A column 2 is installed on the placement base plate 1. A locking post 6 is installed on the top of the column 2. A support post 7 is provided in the middle of the locking post 6.

[0024] When actually assembling the IGBT module body 3, after applying thermal grease to the IGBT module body 3, hold it by hand and then align the placement hole 12 on the IGBT module body 3 with the retaining post 6 and insert it. At this point, the IGBT module body 3 is placed. During subsequent assembly, the IGBT module body 3 can be directly picked up from the fixture for assembly. The above process allows for the direct picking up of the IGBT module body 3 from the fixture for assembly, saving time. Multiple IGBT module bodies 3 can be placed simultaneously, allowing for the application of thermal grease to multiple IGBT module bodies 3 before unified assembly, thereby improving assembly efficiency and benefiting practical use.

[0025] A limiting mechanism is provided on the support column 7 to limit the IGBT module body 3. The limiting mechanism includes a stop rod 5 and a spring 8. The stop rod 5 is rotatably connected to the outside of the support column 7 at an equal angle. The spring 8 is installed between the stop rod 5 and the support column 7. The top edge of the stop rod 5 contacts the locking post 6. The diameter of the stop rod 5 is smaller than the distance difference between the side of the locking post 6 and the side of the support column 7. The rotation angle of the stop rod 5 is 90 degrees.

[0026] During the placement of the IGBT module body 3, when the bottom of the IGBT module body 3 contacts the stop bar 5, the IGBT module body 3 pushes the stop bar 5, causing the stop bar 5 to rotate downwards. After the stop bar 5 rotates to 90 degrees, the IGBT module body 3 can continue to be placed. When the IGBT module body 3 is separated from the stop bar 5, the elastic force of the spring 8 causes the stop bar 5 to rotate in the opposite direction and unfold. After the stop bar 5 unfolds, it limits the IGBT module body 3, making the IGBT module body 3 stable and preventing it from falling off during the overall removal process.

[0027] The base plate 1 has mounting holes 10. The clamping post 6, the support post 7 and the post body 2 have aligned through grooves 11 inside. The through grooves 11 are aligned with the mounting holes 10. The bottom of the stop bar 5 is equipped with a pull rope 4. The other ends of each pull rope 4 are connected together. The support post 7 has through holes 9 at equal angles around its perimeter. The through holes 9 are connected to the through grooves 11. The pull ropes 4 pass through the through holes 9, the mounting holes 10 and the through grooves 11.

[0028] Before picking up the IGBT module body 3, pull down the pull rope 4 by hand. Pull the other end of the pull rope 4 against the stop bar 5 until the stop bar 5 retracts. Then you can directly take out the IGBT module body 3. The operation is relatively simple.

[0029] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. An IGBT module placement fixture, comprising a placement base plate (1) and an IGBT module body (3), characterized in that, The IGBT module body (3) has a placement hole (12) on its side. A column (2) is installed on the placement base plate (1). A locking post (6) is installed on the top of the column (2). A support post (7) is set in the middle of the locking post (6). A limit mechanism is set on the support post (7). The limit mechanism limits the IGBT module body (3).

2. The IGBT module placement fixture according to claim 1, characterized in that: The base plate (1) is provided with mounting holes (10), and the clamping post (6), the support post (7) and the column body (2) are provided with aligned through grooves (11), which are aligned with the mounting holes (10).

3. The IGBT module placement fixture according to claim 1, characterized in that: The limiting mechanism includes a stop bar (5) and a spring (8). The stop bar (5) is rotatably connected to the outside of the support column (7) at equal angles, and the spring (8) is installed between the stop bar (5) and the support column (7).

4. The IGBT module placement fixture according to claim 3, characterized in that: The bottom of the stop bar (5) is equipped with a pull rope (4), and the other ends of each pull rope (4) are connected together.

5. The IGBT module placement fixture according to claim 4, characterized in that: The support column (7) has through holes (9) at equal angles around its perimeter. The through holes (9) are connected to the through groove (11). The pull rope (4) passes through the through holes (9), the mounting hole (10) and the inside of the through groove (11).

6. The IGBT module placement fixture according to claim 4, characterized in that: The top edge of the stop bar (5) contacts the locking post (6), the diameter of the stop bar (5) is smaller than the distance difference between the side of the locking post (6) and the side of the support post (7), and the rotation angle of the stop bar (5) is 90 degrees.

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