Bushing installation device of power module

Abstract

The utility model relates to a bushing installation device of a power module, which belongs to the technical field of power module processing, and comprises an upper pressing plate, a lower supporting plate is arranged below the upper pressing plate, a positioning column is fixedly arranged on the lower supporting plate, the upper pressing plate is arranged on the positioning column in a penetrating manner, and the upper pressing plate is connected with the positioning column in a sliding manner. A plurality of lower limiting columns are fixedly arranged on the lower carrying plate, upper limiting columns are fixedly arranged at the positions, corresponding to the lower limiting columns, of the upper pressing plate, and the upper limiting columns abut against the lower limiting columns; a pressing column is fixedly arranged on the upper pressing plate, the pressing column faces the lower carrying plate, a plurality of positioning blocks are arranged at the positions, corresponding to the pressing column, of the lower carrying plate, and the positioning blocks are used for limiting and fixing the power module. The tool is simple in structure and convenient to operate, the working efficiency of the power module bush installation process is greatly improved, the reliability of the power module bush installation process is guaranteed, and the tool has excellent compatibility.

Description

Technical Field

[0001] The utility model relates to the field of production and manufacturing of power modules, in particular to a bushing installation device of a power module. Background Art

[0002] Power modules are necessary electronic components for the development of modern power electronics towards integration and miniaturization. They are a direction of development of power electronics technology, and the development trend has continued to rise in recent years. Power modules are the core components of electronic circuits and control systems, and their performance directly determines the efficiency and reliability of the system. In the current production and manufacturing process of power modules, bushing installation is an inevitable process for some power module structures, and bushing installation also indirectly affects the reliability of power modules. At present, the bushing installation device of the power module is not convenient to position, has poor compatibility, lacks limit protection, and has low bushing installation reliability. Therefore, a bushing installation device for power modules with high reliability and compatibility is urgently needed. Utility Model Content

[0003] In response to the above requirements, the purpose of the utility model is to provide a bushing installation device for a power module, which can conveniently and quickly limit and fix the power module, so that the bushing can be vertically installed into the power module substrate to achieve bushing installation, while providing certain protection and limit to the power module.

[0004] In order to solve the above technical problems, the utility model provides a bushing installation device for a power module, including an upper pressure plate, a download plate is arranged below the upper pressure plate, a positioning column is fixedly arranged on the download plate, the upper pressure plate is passed through the positioning column, the upper pressure plate is slidably connected with the positioning column, a plurality of lower limit columns are fixedly arranged on the download plate, an upper limit column is fixedly arranged at a position corresponding to the lower limit column on the upper pressure plate, and the upper limit column abuts against the lower limit column; a pressure column is fixedly arranged on the upper pressure plate, the pressure column faces the download plate, and a plurality of positioning blocks are arranged at a position corresponding to the pressure column on the download plate, and the positioning blocks are used to limit and fix the power module.

[0005] According to the above technical solution, it is further preferred that the positioning blocks are in two groups, three groups or four groups for positioning the power module.

[0006] Preferably, the pressing columns are in two or more groups for pressing in multiple bushings.

[0007] Preferably, the front end of the pressure column is a cone with a guide for guiding and correcting the pressing direction of the bushing.

[0008] Preferably, the edge of the positioning block is chamfered by 30 degrees to facilitate the placement and removal of the power module.

[0009] Preferably, the download plate is provided with a plurality of blind holes for fixing the lower limit column and the positioning block.

[0010] Preferably, a long slot through hole is provided on the download plate, and the positioning block is slidably connected to the long slot through hole.

[0011] Preferably, a pressure sensor is provided on the pressure column to detect the pressure value during the installation of the bushing to avoid extrusion damage to the power module due to excessive pressure.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model provides a device for installing a power module bushing, in which the power module is placed on a download plate, positioned with the help of a positioning block, and the bushing is placed on the power module, and the upper pressure plate is pressed downward in parallel to the download plate under the action of a positioning column, and the pressure column contacts the bushing under the drive of the upper pressure plate, and presses the bushing into the power module to achieve the installation of the bushing of the power module, wherein the limiting column plays a role of limiting protection to prevent the pressure column from pressing down too low, and the power module from being subjected to excessive pressure and thus failing. The utility model has a simple structure and is easy to operate, greatly improving the work efficiency of the power module bushing installation process, ensuring the reliability of the power module bushing installation process, and has excellent compatibility, and can adapt to the bushing installation requirements of various power modules by only replacing the positioning block or adjusting the position. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic diagram of the structure of the first embodiment of the utility model;

[0015] Figure 2 This is a schematic diagram of the top view of the structure of the first embodiment of the device of the utility model;

[0016] Figure 3 This is a schematic diagram of the top view of the structure of the second embodiment of the device of the utility model;

[0017] Figure 4 This is a schematic structural diagram of the second embodiment of the utility model.

[0018] In the figure, 1, upper pressure plate, 2, download plate, 3, positioning block, 3-1, long slot through hole, 4, pressure column, 5, positioning column, 6, upper limit column, 7, lower limit column, 8, power module, 8-1, bushing. DETAILED DESCRIPTION

[0019] In order to further understand the purpose, structure, features and advantages of the present invention, the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention.

[0020] In the description of the present invention, it is necessary to understand that the terms "upper", "lower", "parallel", "symmetrical", "vertical line" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the structure referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0021] Embodiment 1

[0022] See also Figure 1 and Figure 2 As shown, an embodiment of the utility model provides a bushing installation device for a power module, including an upper pressure plate 1, a download plate 2 is arranged below the upper pressure plate 1, a positioning column 5 is fixedly arranged on the download plate 2, the upper pressure plate 1 is passed through the positioning column 5, the upper pressure plate 1 is slidably connected to the positioning column 5, and a plurality of lower limit columns 7 are fixedly arranged on the download plate 2. In the embodiment of the utility model, the lower limit columns 7 are four groups, which are respectively arranged at the four corners of the download plate 2. An upper limit column 6 is fixedly arranged at a position corresponding to the lower limit column 7 on the upper pressure plate 1, and the upper limit column 6 abuts against the lower limit column 7; a pressure column 4 is fixedly arranged on the upper pressure plate 1, and the pressure column 4 faces the download plate 2, and a plurality of positioning blocks 3 are arranged at positions corresponding to the pressure column 4 on the download plate 2, and the positioning blocks 3 are used to limit and fix the power module 8; the download plate 2 has a plurality of mounting blind holes, and the lower limit column 7 can be fixed on the download plate 2 through the mounting blind holes on the download plate 2. The four lower limit columns 7 are of equal height, and the mounting position of the lower limit column 7 is located on the same vertical line as the mounting position of the upper limit column. When the upper pressure plate 1 is pressed downward, the bottom surface of the upper limit column 6 and the top surface of the lower limit column 7 can be contacted and extruded on the same vertical line, which plays a role in limiting the height; the positioning block 3 is also fixed on the download plate 2 through the mounting blind hole, and the positioning block 3 can position the power module that needs to be installed with a bushing.

[0023] The positioning blocks 3 are in two groups, three groups, four groups or more than four groups. The more the positioning blocks 3 are used to position the power module 8 for replacement, the higher the positioning accuracy. The edges of the positioning blocks 3 are chamfered by 30 degrees to facilitate the placement of the power module.

[0024] The download plate 2 is provided with a plurality of blind holes for fixing the lower limit column 7 and the positioning block 3, wherein the positioning column 5 can also be fixedly installed on the download plate 2 by the blind hole and pass through the circular through hole of the upper pressing plate 1, so that the positions of the upper pressing plate 1 and the download plate 2 are fixed, and it is ensured that the upper pressing plate 1 can move downward parallel to the download plate 2 for pressing action.

[0025] The pressure column 4 is fixed on the upper pressing plate 1 through the installation blind hole of the upper pressing plate 1, and can move up and down synchronously with the upper pressing plate 1. The pressure column 4 is provided with a pressure sensor for detecting the pressure value during the installation of the bushing to avoid the extrusion damage of the power module caused by excessive pressure. When the upper pressing plate 1 is pressed downward, the pressure column 4 first contacts the bushing 8-1 and vertically presses the bushing 8-1 into the power module 8.

[0026] Embodiment 2

[0027] See also Figure 3 and Figure 4 As shown, the utility model provides another embodiment of a bushing installation device for a power module, comprising an upper pressing plate 1, a downloading plate 2 is arranged below the upper pressing plate 1, a positioning column 5 is fixedly arranged on the downloading plate 2, the upper pressing plate 1 is penetrated on the positioning column 5, the upper pressing plate 1 is slidably connected with the positioning column 5, a plurality of lower limit columns 7 are fixedly arranged on the downloading plate 2, an upper limit column 6 is fixedly arranged at a position corresponding to the lower limit column 7 on the upper pressing plate 1, and the upper limit column 6 abuts against the lower limit column 7; a pressure column 4 is fixedly arranged on the upper pressing plate 1. The difference between the second embodiment of the utility model and the first embodiment is the number of pressure columns 4. The number of pressure columns 4 is increased to two or more groups, which can meet the needs of installing multiple bushings at one time, and a cone with a guide is added to the front end of the pressure column 4 to guide and correct the direction of pressing the bushing 8-1.

[0028] The download board 2 is provided with a long slot through hole 3-1, which replaces the original installation blind hole. The positioning block 3 is slidably connected with the long slot through hole 3-1, and the installation position can be changed through the long strip hole 3-1 to adapt to power modules of different packages. The number of positioning blocks 3 is reduced to 2, making the positioning of the power module more convenient and quick.

[0029] Based on this, the utility model provides a bushing installation device for a power module, which places the power module 8 on the download plate 2 and positions it through the positioning block 3, so that the bushing installation position of the power module 8 and the pressure column 4 are located on the same vertical line, and the bushing 8-1 is placed at the bushing installation position of the power module 8. Under the joint action of the external force and the positioning column 5, the upper pressure plate 1 is pressed downward parallel to the download plate 2, and the pressure column 4 is driven by the upper pressure plate to move downward to squeeze the bushing 8-1, and the bushing 8-1 is vertically pressed into the power module 8. At the same time, the upper limit column 6 and the lower limit column 7 are used to limit the height to ensure that the pressing force is within a reasonable range, so as to avoid the power module 8 being subjected to excessive force during the bushing installation process, resulting in reduced reliability or even failure. The utility model has a simple structure, is easy to operate, greatly improves the work efficiency and reliability of the power module bushing installation process, and has excellent compatibility. It only needs to replace the positioning block or adjust the position to adapt to the bushing installation requirements of various power modules.

[0030] The power module size, bushing size, and installation method not described in detail in the present invention are all prior art and will not be described in detail.

[0031] This article has described the principle and implementation of the utility model through specific examples, and the description of the above examples is only used to help understand the method and core idea of ​​the utility model. It should be pointed out that for ordinary technicians in this technical field, without departing from the principle of the utility model, the utility model can also be improved and modified, and these improvements and modifications also fall within the scope of protection of the claims of the utility model.

Claims

1. A bushing installation device for a power module, comprising an upper pressing plate (1), characterized in that: A download plate (2) is arranged below the upper pressure plate (1), a positioning column (5) is fixedly arranged on the download plate (2), the upper pressure plate (1) is inserted into the positioning column (5), the upper pressure plate (1) is slidably connected to the positioning column (5), a plurality of lower limit columns (7) are fixedly arranged on the download plate (2), an upper limit column (6) is fixedly arranged at a position corresponding to the lower limit column (7) on the upper pressure plate (1), and the upper limit column (6) abuts against the lower limit column (7); a pressure column (4) is fixedly arranged on the upper pressure plate (1), the pressure column (4) faces the download plate (2), a plurality of positioning blocks (3) are arranged at a position corresponding to the pressure column (4) on the download plate (2), and the positioning blocks (3) are used to limit and fix the power module (8).

2. A bushing installation device for a power module according to claim 1, characterized in that: The positioning blocks (3) are in two groups, three groups or four groups and are used to locate the position of the power module (8).

3. The bushing installation device of a power module according to claim 1, characterized in that: The pressing columns (4) are in two or more groups and are used to press-in a plurality of bushings.

4. A bushing installation device for a power module according to claim 3, characterized in that: The front end of the pressing column (4) is a cone with a guide, which is used to guide and correct the pressing direction of the bushing.

5. The bushing installation device of a power module according to claim 1, characterized in that: The edge of the positioning block (3) is chamfered by 30 degrees to facilitate the placement and removal of the power module.

6. The bushing installation device of a power module according to claim 1, characterized in that: The download plate (2) is provided with a plurality of blind holes for fixing the lower limit column (7) and the positioning block (3).

7. The bushing installation device of a power module according to claim 1, characterized in that: The download plate (2) is provided with a long slot through hole (3-1), and the positioning block (3) is slidably connected to the long slot through hole (3-1).

8. The bushing installation device of a power module according to claim 1, characterized in that: The pressure column (4) is provided with a pressure sensor for detecting the pressure value during the installation of the bushing, thereby preventing the power module from being squeezed and damaged due to excessive pressure.

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