IGBT (Insulated Gate Bipolar Translator) module mounting device

Abstract

The utility model discloses an IGBT module installation device, and relates to the technical field of IGBT modules. Comprising a module body, a mounting seat is arranged at the bottom of the module body, mounting assemblies are arranged on the two sides of the mounting seat respectively, four fixing holes are formed in the four corners of the module body, each mounting assembly comprises an L-shaped plate attached to the module body, two sliding rods are fixed to one side of each L-shaped plate, and the sliding rods are inserted into an inner cavity of the side wall of the mounting seat. A first spring is connected between the sliding rod and an inner cavity of the mounting base, and a limiting assembly is arranged at the top of the L-shaped plate and used for fixing the position of the L-shaped plate. According to the IGBT module, the installation assembly is arranged, the module body and the installation base are fixed through the L-shaped plate in the installation assembly, connection between the IGBT module and the outside is not affected, installation and fixation of the module body can be achieved, the installation and disassembly efficiency is improved, later maintenance is facilitated, and the service life of the IGBT module is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of IGBT modules, in particular to an IGBT module installation device. Background Art

[0002] The IGBT module is a power module composed of an insulated gate bipolar transistor (IGBT). It is a composite fully controlled voltage-driven power semiconductor device that combines the advantages of MOSFET's high input impedance and GTR's low on-state voltage drop. The IGBT module is voltage-controlled, with large input impedance, low drive power, simple control circuit, small switching loss, fast on-off speed, high operating frequency, and large component capacity. It usually contains multiple IGBT devices and related circuits, which are integrated on a semiconductor silicon wafer and then packaged into a module.

[0003] After searching, application number 202020942620.8 discloses an installation structure of an IGBT module housing. The patent includes a packaging module housing, a strip-shaped slide groove opening is provided on one side wall surface of the packaging module housing, and accommodating cavities are provided at both ends of the inner side wall of the packaging module located at the strip-shaped slide groove opening, and terminal rectangular frames are slidably arranged in the accommodating cavities, and a terminal board is fixedly installed inside the rectangular frame, and a plurality of pin terminals are fixedly arranged on the surface of the terminal board. The utility model has a simple structure and is convenient to transport. During the transportation of the packaging module housing, the terminal rectangular frame is located in the accommodating cavity, which can prevent the pin terminals from being bumped, ensures the integrity of the pin terminals, and also prevents the pin terminals from piercing people. The terminal rectangular frame can be slid out of the accommodating cavity by a slider, so that the terminal rectangular frame is located at the strip-shaped slide groove opening. At this time, the pin terminals can be easily connected to the power supply. The device makes it difficult for the IGBT module to be quickly disassembled and assembled during use. The structure is simple. In view of this, the existing structure and deficiencies are studied and improved, and an IGBT module installation device is proposed. Utility Model Content

[0004] The purpose of the utility model is to provide an IGBT module installation device to solve the problems raised in the above background technology.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: including a module body, a mounting seat is provided at the bottom of the module body, a mounting assembly is provided on each side of the mounting seat, four fixing holes are provided at the four corners of the module body, the mounting assembly includes an L-shaped plate that fits the module body, two sliding rods are fixed on one side of the L-shaped plate, the sliding rods are inserted into the inner cavity of the side wall of the mounting seat, and a spring is connected to the sliding rod and the inner cavity of the mounting seat, and a limit assembly is provided on the top of the L-shaped plate, and the limit assembly is used to fix the position of the L-shaped plate.

[0006] Preferably, the limiting assembly includes a hollow block fixed on the top of the L-shaped plate, a second spring is fixed in the inner cavity of the hollow block, a fixed block is connected to the bottom of the second spring, the fixed block slides in the opening of the L-shaped plate, the bottom of the fixed block is inserted into the fixed hole and the bottom surface is arc-shaped.

[0007] Preferably, a pull rod is connected to the top of the fixed block, and the pull rod passes through the top opening of the hollow block. A slot is opened on one side of the pull rod, and the block is placed on the top of the hollow block and inserted into the slot for limiting.

[0008] Preferably, four protrusions are provided at the bottom of the module body, and the protrusions are inserted into the recesses at the top of the mounting seat.

[0009] Preferably, a pull ring 1 is fixed to one side of the L-shaped plate, and a pull ring 2 is fixed to the top of the pull rod.

[0010] Preferably, a sealing gasket is provided between the module body and the mounting seat.

[0011] Preferably, notches are provided on both sides of the module body, a row of heat sinks are installed equidistantly inside the notches, and mesh plates are installed outside the heat sinks in the notches by bolts.

[0012] Preferably, a sealing ring is provided on the outer wall of the mesh plate.

[0013] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0014] 1. The utility model sets an installation component, and the L-shaped plate is pulled out, and the sliding rod moves accordingly, and a spring 1 is connected to the sliding rod and the inner cavity of the mounting seat. After the two L-shaped plates make enough space, the module body is placed on the top of the mounting seat, and then the L-shaped plate is slowly released and reset by spring 1. After the L-shaped plate is reset, it fits with the top surface of the module body and slides inward, and then the L-shaped plate is positioned by the limit assembly. The module body cannot move horizontally through the protrusion, and then cannot move up through the L-shaped plate, thereby completing the installation. The module body is fixed to the mounting seat by the L-shaped plate, which does not affect the connection between the IGBT module and the outside world, and can also realize the installation and fixation of the module body, thereby improving the efficiency of installation and disassembly, facilitating later maintenance, and increasing the service life of the IGBT module.

[0015] 2. According to the limit assembly of the utility model, when the L-shaped plate is reset and slides in contact with the top surface of the module body, the bottom surface of the fixed block is arc-shaped. When the arc surface of the fixed block contacts the side wall of the module body, it will slide upward and compress the spring 2. After moving to the top of the fixing hole, the elastic force generated by the spring 2 pushes the fixed block to automatically insert into the fixing hole, thereby accurately fixing the module body, further improving the stability of the installation of the module body, limiting the L-shaped plate, and facilitating disassembly and subsequent maintenance. The pull ring 1 on one side of the L-shaped plate and the pull ring 2 on the top of the pull rod increase the convenience of the installation operation and improve the installation efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a schematic diagram of the overall three-dimensional structure of an IGBT module installation device in this utility model;

[0017] Figure 2 This is a three-dimensional structural diagram of the main module of an IGBT module installation device in this utility model;

[0018] Figure 3 This is a side cross-sectional view of an overall IGBT module mounting device of the present invention;

[0019] Figure 4 This is a three-dimensional cross-sectional view of an installation assembly of an IGBT module installation device according to the present invention;

[0020] Figure 5 This is a three-dimensional cross-sectional view of a partial fixed state of an installation component of an IGBT module installation device of the present invention;

[0021] Figure 6 This is a side cross-sectional view of a partially fixed state of an installation component of an IGBT module installation device according to the present invention.

[0022] In the figure: 1. module body; 101. fixing hole; 102. bump; 103. sealing gasket; 104. heat sink; 105. mesh plate; 106. sealing ring; 2. mounting seat; 3. mounting assembly; 301. L-shaped plate; 302. sliding rod; 303. spring 1; 304. pull ring 1; 4. limiting assembly; 401. hollow block; 402. fixing block; 403. spring 2; 404. pull rod; 405. pull ring 2; 5. clamping block. DETAILED DESCRIPTION

[0023] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0024] like Figure 1-Figure 6As shown, an IGBT module mounting device includes a module body 1, a mounting seat 2 is provided at the bottom of the module body 1, a mounting assembly 3 is provided on each side of the mounting seat 2, four fixing holes 101 are provided at four corners of the module body 1, the mounting assembly 3 includes an L-shaped plate 301 fitted with the module body 1, two slide bars 302 are fixed on one side of the L-shaped plate 301, the slide bar 302 is inserted into the inner cavity of the side wall of the mounting seat 2, and a spring 303 is connected to the slide bar 302 and the inner cavity of the mounting seat 2, and a limit assembly 4 is provided on the top of the L-shaped plate 301, and the limit assembly 4 is used to fix the position of the L-shaped plate 301.

[0025] As mentioned above, in the actual installation of this case, the L-shaped plate 301 is pulled out, and the sliding rod 302 moves accordingly, and the sliding rod 302 is connected to the inner cavity of the mounting seat 2 with a spring 303. After the two L-shaped plates 301 make enough space, the module body 1 is placed on the top of the mounting seat 2, and then the L-shaped plate 301 is slowly released and reset by the spring 303. After the L-shaped plate 301 is reset, it is attached to the top surface of the module body 1 and slides inward, and then the L-shaped plate 301 is positioned by the limit assembly 4. The module body 1 cannot move horizontally through the protrusion 102, and then cannot move up through the L-shaped plate 301, thereby completing the installation. The module body 1 is fixed to the mounting seat 2 by the L-shaped plate 301, which does not affect the connection between the IGBT module and the outside world, and can also realize the installation and fixation of the module body 1, thereby improving the efficiency of installation and disassembly, facilitating later maintenance, and increasing the service life of the IGBT module.

[0026] The limiting assembly 4 includes a hollow block 401 fixed on the top of the L-shaped plate 301, a spring 2 403 is fixed in the inner cavity of the hollow block 401, a fixed block 402 is connected to the bottom of the spring 2 403, the fixed block 402 slides in the opening of the L-shaped plate 301, the bottom of the fixed block 402 is inserted into the fixing hole 101 and the bottom surface is arc-shaped, a pull ring 1 304 is fixed on one side of the L-shaped plate 301, and a pull ring 2 405 is fixed on the top of the pull rod 404.

[0027] As mentioned above, when the L-shaped plate 301 is reset and slides against the top surface of the module body 1, the bottom surface of the fixing block 402 is arc-shaped. When the arc surface of the fixing block 402 contacts the side wall of the module body 1, it will slide upward and compress the spring 2 403. After moving to the top of the fixing hole 101, the elastic force generated by the spring 2 403 pushes the fixing block 402 to automatically insert into the fixing hole 101, thereby accurately fixing the module body 1, further improving the stability of the installation of the module body 1, and limiting the L-shaped plate 301, and facilitating disassembly and subsequent maintenance. The pull ring 1 304 on one side of the L-shaped plate 301 and the pull ring 2 405 on the top of the pull rod 404 both increase the convenience of the installation operation and improve the installation efficiency.

[0028] A pull rod 404 is connected to the top of the fixed block 402, and the pull rod 404 passes through the top opening of the hollow block 401. A slot is opened on one side of the pull rod 404, and a card block 5 is placed on the top of the hollow block 401 and inserted into the slot for limiting.

[0029] As mentioned above, during disassembly, the pull rod 404 is moved upward to drive the bottom fixed block 402 to move upward. After the hollow block 401 is pulled out through the side slot of the pull rod 404, a card block 5 is placed on the top of the hollow block 401 and inserted into the slot to fix it. Then, the L-shaped plate 301 can be moved to take out the module body 1.

[0030] Four protrusions 102 are provided at the bottom of the module body 1, and the protrusions 102 are inserted into the recesses at the top of the mounting seat 2. A sealing gasket 103 is provided between the module body 1 and the mounting seat 2. Recesses are provided on both sides of the module body 1, and a row of heat sinks 104 are installed equidistantly inside the recesses. A mesh plate 105 is installed on the outside of the heat sink 104 through bolts in the recesses, and a sealing ring 106 is provided on the outer wall of the mesh plate 105.

[0031] As mentioned above, before fixing the module body 1, the four protrusions 102 set at the bottom of the module body 1 are inserted into the recess at the top of the mounting seat 2 for initial positioning, and the module body 1 is fixed to prevent shaking from affecting the installation. After the sealing gasket 103 is pasted on the bottom of the module body 1, the module body 1 is placed. It is easy to replace and can effectively prevent dust. The sealing gasket 103 is made of rubber and has a certain elasticity, which facilitates the L-shaped plate 301 to better fit the module body 1. A heat sink 104 is set on the surface of the module body 1 to improve the heat dissipation efficiency of the IGBT module. A mesh plate 105 is set to effectively prevent dust. A sealing ring 106 is set between the mesh plate 105 and the recess, which can effectively prevent air and dust from entering the gap between the mesh plate 105 and the recess, and has good sealing performance.

[0032] Working principle: Pull out the L-shaped plate 301, and the slide bar 302 moves accordingly, and the slide bar 302 is connected to the inner cavity of the mounting seat 2 with a spring 303. After the two L-shaped plates 301 make enough space, place the module body 1 on the top of the mounting seat 2, and insert the four protrusions 102 set at the bottom of the module body 1 into the recess at the top of the mounting seat 2 for initial positioning. Then, slowly release the L-shaped plate 301 and reset it through the spring 303. After the L-shaped plate 301 is reset, it fits with the top surface of the module body 1 and slides inward. The module body 1 cannot move horizontally due to the protrusions 102, and cannot move upward due to the L-shaped plate 301, so the installation is completed. When the plate 301 is reset and slides against the top surface of the module body 1, the bottom surface of the fixed block 402 is arc-shaped. When the arc surface of the fixed block 402 contacts the side wall of the module body 1, it will slide upward and compress the spring 2 403. After moving to the top of the fixing hole 101, the elastic force generated by the spring 2 403 pushes the fixed block 402 to automatically insert into the fixing hole 101, thereby accurately fixing the module body 1. When disassembling, move the pull rod 404 upward to drive the bottom fixed block 402 upward. After the side slot of the pull rod 404 pulls out the hollow block 401, place the card block 5 on the top of the hollow block 401 and insert it into the card slot to fix it. Then, the L-shaped plate 301 can be moved to take out the module body 1.

[0033] The embodiments of the present invention are arranged for the purpose of illustration and description, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those of ordinary skill in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention, and to enable those of ordinary skill in the art to understand the present invention and design various embodiments with various modifications suitable for specific purposes.

Claims

1. An IGBT module mounting device, comprising a module body (1), characterized in that: The bottom of the module body (1) is provided with a mounting seat (2), two mounting components (3) are respectively provided on both sides of the mounting seat (2), and four fixing holes (101) are provided at the four corners of the module body (1); The mounting assembly (3) comprises an L-shaped plate (301) fitted with the module body (1), two slide bars (302) being fixed on one side of the L-shaped plate (301), the slide bars (302) being inserted into the inner cavity of the side wall of the mounting seat (2), and a spring (303) connecting the slide bars (302) and the inner cavity of the mounting seat (2), and a limit assembly (4) being provided on the top of the L-shaped plate (301), the limit assembly (4) being used to fix the position of the L-shaped plate (301).

2. An IGBT module installation device according to claim 1, characterized in that: The limiting assembly (4) comprises a hollow block (401) fixed on the top of the L-shaped plate (301), a second spring (403) is fixed in the inner cavity of the hollow block (401), a fixing block (402) is connected to the bottom of the second spring (403), the fixing block (402) slides in the opening of the L-shaped plate (301), the bottom of the fixing block (402) is inserted into the fixing hole (101) and the bottom surface is arc-shaped.

3. An IGBT module installation device according to claim 2, characterized in that: The top of the fixed block (402) is connected to a pull rod (404), and the pull rod (404) passes through the top opening of the hollow block (401). A slot is provided on one side of the pull rod (404), and a card block (5) is placed on the top of the hollow block (401) and inserted into the slot for limiting.

4. The IGBT module installation device according to claim 1, characterized in that: Four protrusions (102) are provided at the bottom of the module body (1), and the protrusions (102) are inserted into the recesses at the top of the mounting seat (2).

5. The IGBT module installation device according to claim 3, characterized in that: A pull ring 1 (304) is fixed to one side of the L-shaped plate (301), and a pull ring 2 (405) is fixed to the top of the pull rod (404).

6. The IGBT module installation device according to claim 1, characterized in that: A sealing gasket (103) is provided between the module body (1) and the mounting seat (2).

7. The IGBT module installation device according to claim 1, characterized in that: Notches are provided on both sides of the module body (1), a row of heat sinks (104) are installed at equal intervals inside the notches, and mesh plates (105) are installed outside the heat sinks (104) in the notches by means of bolts.

8. An IGBT module installation device according to claim 7, characterized in that: The outer wall of the mesh plate (105) is provided with a sealing ring (106).

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