A tooling for mounting multiple sets of IGBT tubes and rectifier diodes

Abstract

The application discloses a tool for mounting multiple groups of IGBT tubes and rectifier diodes, which is used for mounting IGBT tubes and rectifier diodes on a heat sink and comprises a first limiting plate and a second limiting plate. A plurality of first adaptive grooves are formed in the top of the first limiting plate, the groove bottoms of a part of the first adaptive grooves are downwardly provided with first double-pin matching grooves, the groove bottoms of the rest of the first adaptive grooves are downwardly provided with first three-pin matching grooves, and a first heat sink adaptive groove is further formed in one side of the top of the first limiting plate. A plurality of second adaptive grooves are formed in the top of the second limiting plate, the groove bottoms of a part of the second adaptive grooves are downwardly provided with second double-pin matching grooves, the groove bottoms of the rest of the second adaptive grooves are downwardly provided with second three-pin matching grooves, and a second heat sink adaptive groove is further formed in one side of the top of the second limiting plate. The tool can solve the problems of complex structure, high manufacturing cost and inconvenient operation of the existing tool.

Description

Technical Field

[0001] This application relates to the field of mounting fixtures for electronic products, and more particularly to a fixture for mounting multiple IGBT transistors and rectifier diodes. Background Technology

[0002] With the rapid development of new energy technologies, IGBTs are continuously evolving towards higher voltage, higher power, and higher integration. Heat dissipation has become a major factor affecting the efficiency and safety of IGBTs, typically requiring a heat dissipation system composed of heat sinks, ceramic substrates, and other components. However, in practical applications, ceramic substrates often need to be used in conjunction with multiple IGBTs and rectifier diodes, which complicates IGBT installation. Manual installation can easily lead to misalignment of the IGBT or rectifier diode leads with the solder notches on the PCB. Therefore, to ensure installation accuracy, specialized positioning fixtures must be used to complete the installation process.

[0003] However, there are currently a variety of tooling options for positioning or fixing IGBTs and rectifier diodes. Most of these options use snap-fit ​​or multiple tooling combinations, which leads to complex tooling structures, significantly increased manufacturing costs, and inconvenient operation. Utility Model Content

[0004] The main objective of this application is to provide a fixture for mounting multiple IGBT transistors and rectifier diodes, aiming to solve the problems of existing fixtures being complex in structure, high in manufacturing cost, and inconvenient in operation.

[0005] To achieve the above objectives, this application provides a fixture for mounting multiple IGBT transistors and rectifier diodes onto a heat sink. The fixture includes a first limiting plate and a second limiting plate. The first limiting plate has multiple first adapter slots formed from top to bottom on its top surface. A portion of these first adapter slots have a first two-pin mating slot at the bottom, while the remaining slots have a first three-pin mating slot at the bottom. A first heat sink adapter slot is also formed on one side of the top surface of the first limiting plate. The second limiting plate has multiple second adapter slots formed from top to bottom on its top surface. A portion of these second adapter slots have a second two-pin mating slot at the bottom, while the remaining slots have a second three-pin mating slot at the bottom. A second heat sink adapter slot is also formed on one side of the top surface of the second limiting plate. The first and second limiting plates are fitted together, and the first and second heat sink adapter slots are combined to form a single heat sink adapter slot.

[0006] Optionally, each of the first adapter slots and each of the second adapter slots are staggered.

[0007] Optionally, the first two-pin mating slot and the first three-pin mating slot on the first limiting plate are arranged in pairs; the second two-pin mating slot and the second three-pin mating slot on the second limiting plate are arranged in pairs.

[0008] Optionally, the first limiting plate and the second limiting plate are detachably connected.

[0009] Optionally, both the first limiting plate and the second limiting plate are made of Q235 material.

[0010] Optionally, the tooling further includes a base, wherein the base is disposed at the bottom of the first limiting plate and the second limiting plate.

[0011] Optionally, the base includes: an upright plate and a horizontal plate, wherein the upright plate is connected to the outside of the first limiting plate or the outside of the second limiting plate; the horizontal plate is connected to one end of the upright plate and is parallel to the horizontal plane.

[0012] Optionally, the upright plate is connected to the first limiting plate or the second limiting plate by a pin.

[0013] Optionally, the surfaces of the first limiting plate and the second limiting plate are chrome plated.

[0014] This application provides a fixture for mounting multiple IGBT transistors and rectifier diodes. When mounting the IGBT transistors and rectifier diodes on one side of a heat sink, the heat sink is first placed in a heat sink adapter slot. Then, the IGBT transistor is positioned within a first adapter slot with a first three-pin mating slot, and the rectifier diode is positioned within a first adapter slot with a first two-pin mating slot. The IGBT transistor and rectifier diode are then fixed to one side of the heat sink. Similarly, when mounting the IGBT transistors and rectifier diodes on the other side of the heat sink, the IGBT transistor is positioned within a second adapter slot with a second three-pin mating slot, and the rectifier diode is positioned within a second adapter slot with a second two-pin mating slot. The IGBT transistor and rectifier diode are then fixed to the other side of the heat sink. This completes the mounting of the IGBT transistors and rectifier diodes. The assembled structure can then be removed from the fixture and soldered onto a PCB board. The entire mounting process is simple, and the fixture itself consists of a first limiting plate and a second limiting plate, resulting in a simple structure and low manufacturing cost. Attached Figure Description

[0015] Figure 1 A schematic diagram of a fixture for mounting multiple IGBT transistors and rectifier diodes is provided in an embodiment of this application.

[0016] Figure 2 for Figure 1 A structural diagram from another perspective;

[0017] Figure 3 This is a schematic diagram illustrating the usage state of a tooling for mounting multiple IGBT transistors and rectifier diodes, provided in an embodiment of this application.

[0018] In the diagram, 1. IGBT transistor; 2. Rectifier diode; 3. Heat sink; 4. First limiting plate; 401. First adapter slot; 402. First two-pin mating slot; 403. First three-pin mating slot; 404. First heat sink adapter slot; 5. Second limiting plate; 501. Second adapter slot; 502. Second two-pin mating slot; 503. Second three-pin mating slot; 504. Second heat sink adapter slot; 6. Heat sink adapter slot; 7. Base; 701. Vertical plate; 702. Horizontal plate.

[0019] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0020] 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.

[0021] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0022] In this utility model, unless otherwise explicitly specified and limited, the terms "connection," "fixing," etc., should be interpreted broadly. For example, "fixing" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0023] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the meaning of "and / or" throughout the text includes three parallel solutions; for example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.

[0024] Please see Figures 1 to 3 This application provides a fixture for mounting multiple IGBT transistors and rectifier diodes, used to mount IGBT transistor 1 and rectifier diode 2 onto a heat sink 3. The fixture may include a first limiting plate 4 and a second limiting plate 5. The first limiting plate 4 has multiple first adapter slots 401 formed from top to bottom on its top. A portion of the first adapter slots 401 have a first two-pin mating slot 402 formed downwards at the bottom, while the remaining first adapter slots 401 have a first three-pin mating slot 403 formed downwards at the bottom. A first heat sink adapter slot 404 is also provided on one side of the top of the position plate 4; a plurality of second adapter slots 501 are provided on the top of the second limiting plate 5 from top to bottom, a portion of the second adapter slots 501 have a second two-pin mating slot 502 with the bottom of the slot facing downward, and the bottom of the remaining second adapter slots 501 have a second three-pin mating slot 503 with the bottom of the slot facing downward. A second heat sink adapter slot 504 is also provided on one side of the top of the second limiting plate 5; wherein, the first limiting plate 4 and the second limiting plate 5 are attached together, and the first heat sink adapter slot 404 and the second heat sink adapter slot 504 are combined to form a heat sink adapter slot 6.

[0025] In this embodiment, when it is necessary to install IGBT 1 and rectifier diode 2 on one side of heat sink 3, firstly, heat sink 3 is placed in heat sink adapter slot 6. Then, IGBT 1 is confined in the first adapter slot 401 with a first three-pin mating slot 403, and rectifier diode 2 is confined in the first adapter slot 401 with a first two-pin mating slot 402. IGBT 1 and rectifier diode 2 are then fixed to one side of heat sink 3. Similarly, when installing IGBT 1 and rectifier diode 2 on the other side of heat sink 3, it is only necessary to confine IGBT 1 in the second adapter slot 501 with a second three-pin mating slot 503, and rectifier diode 2 in the second adapter slot 501 with a second two-pin mating slot 502. IGBT 1 and rectifier diode 2 are then fixed to the other side of heat sink 3. At this point, the installation of IGBT 1 and rectifier diode 2 is complete. The assembled structure can be removed from the fixture and soldered onto the PCB board. The entire installation process is simple to operate, and the main body of the installation fixture consists of the first limiting plate 4 and the second limiting plate 5. The structure is simple and the manufacturing cost is low.

[0026] Please see Figure 1 , Figure 2 Each first adapter slot 401 and each second adapter slot 501 are staggered.

[0027] The first adapter slot 401 and the second adapter slot 501 are staggered, so that the IGBT tubes 1 or rectifier diodes 2 on both sides of the heat sink 3 are also staggered, which makes it easier to fix the IGBT tubes 1 or rectifier diodes 2 on both sides of the heat sink 3 onto the heat sink 3.

[0028] Please see Figure 1 The first dual-pin mating groove 402 and the first triple-pin mating groove 403 on the first limiting plate 4 are arranged in pairs; the second dual-pin mating groove 502 and the second triple-pin mating groove 503 on the second limiting plate 5 are arranged in pairs.

[0029] Specifically, please refer to Figure 3 Rectifier diodes 2 are installed in paired first two-pin mating slots 402 on the first limiting plate 4, and the two rectifier diodes 2 are fixed to one side of the heat sink 3 by a clamping plate. IGBT transistors 1 are installed in paired first three-pin mating slots 403 on the first limiting plate 4, and the two IGBT transistors 1 are also fixed to one side of the heat sink 3 by a clamping plate. Rectifier diodes 2 are installed in paired second two-pin mating slots 502 on the second limiting plate 5, and the two rectifier diodes 2 are fixed to the other side of the heat sink 3 by a clamping plate. IGBT transistors 1 are also installed in paired second three-pin mating slots 503 on the second limiting plate 5, and the two IGBT transistors 1 are also fixed to the other side of the heat sink 3 by a clamping plate.

[0030] It should be noted that the pressure plate and the heat sink 3 are connected by bolts.

[0031] Furthermore, the first limiting plate 4 and the second limiting plate 5 are detachably connected.

[0032] The first limiting plate 4 and the second limiting plate 5 can be connected together by bolts. The connection structure is simple, easy to disassemble and assemble, and beneficial to the later maintenance of the tooling.

[0033] Furthermore, both the first limiting plate 4 and the second limiting plate 5 are made of Q235 material.

[0034] In this embodiment, by setting both the first limiting plate 4 and the second limiting plate 5 to Q235 material, the service life of the tooling can be effectively extended.

[0035] Please see Figure 1 , Figure 2 The tooling may also include: a base 7, wherein the base 7 is disposed at the bottom of the first limiting plate 4 and the second limiting plate 5.

[0036] Specifically, by setting a base 7 at the bottom of the first limiting plate 4 and the second limiting plate 5, the stability of the tooling during use is ensured.

[0037] Please see Figure 3 The base 7 may include a vertical plate 701 and a horizontal plate 702, wherein the vertical plate 701 is connected to the outside of the first limiting plate 4 or the outside of the second limiting plate 5; the horizontal plate 702 is connected to one end of the vertical plate 701 and is parallel to the horizontal plane.

[0038] The base 7 is designed with an "L" shape, which not only makes it easier to manufacture but also provides better stability.

[0039] Furthermore, the upright plate 701 is connected to the first limiting plate 4 or the second limiting plate 5 by a pin.

[0040] Of course, the upright plate 701 can also be connected to the first limiting plate 4 or the second limiting plate 5 by bolts, as long as the base 7 can be securely fixed on the tooling.

[0041] Optionally, the surfaces of the first limiting plate 4 and the second limiting plate 5 are chrome plated.

[0042] In this embodiment, the surfaces of the first limiting plate 4 and the second limiting plate 5 are chrome-plated to prevent wear and tear on the tooling during long-term use and effectively extend the service life of the tooling.

[0043] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A fixture for mounting multiple sets of IGBT transistors and rectifier diodes, used to mount IGBT transistors (1) and rectifier diodes (2) onto a heat sink (3), characterized in that, include: The first limiting plate (4) has multiple first adapter slots (401) from top to bottom on its top. A portion of the first adapter slots (401) have a first two-pin mating slot (402) with the bottom facing downwards. The remaining first adapter slots (401) have a first three-pin mating slot (403) with the bottom facing downwards. A first heat sink adapter slot (404) is also provided on one side of the top of the first limiting plate (4). The second limiting plate (5) has multiple second adapter slots (501) from top to bottom on its top. A portion of the second adapter slots (501) have a second two-pin mating slot (502) with the bottom facing downwards. The remaining second adapter slots (501) have a second three-pin mating slot (503) with the bottom facing downwards. A second heat sink adapter slot (504) is also provided on one side of the top of the second limiting plate (5). The first limiting plate (4) and the second limiting plate (5) are attached together, and the first radiator adapter slot (404) and the second radiator adapter slot (504) are assembled into a radiator adapter slot (6).

2. The fixture for mounting multiple IGBT transistors and rectifier diodes according to claim 1, characterized in that, Each of the first adapter slots (401) and each of the second adapter slots (501) are staggered.

3. The fixture for mounting multiple IGBT transistors and rectifier diodes according to claim 1, characterized in that, The first two-pin mating slot (402) and the first three-pin mating slot (403) on the first limiting plate (4) are arranged in pairs; The second two-pin mating groove (502) and the second three-pin mating groove (503) on the second limiting plate (5) are arranged in pairs.

4. The fixture for mounting multiple IGBT transistors and rectifier diodes according to claim 1, characterized in that, The first limiting plate (4) and the second limiting plate (5) are detachably connected.

5. The fixture for mounting multiple IGBT transistors and rectifier diodes according to claim 1, characterized in that, Both the first limiting plate (4) and the second limiting plate (5) are made of Q235 material.

6. The fixture for mounting multiple IGBT transistors and rectifier diodes according to claim 1, characterized in that, The tooling also includes: The base (7) is disposed at the bottom of the first limiting plate (4) and the second limiting plate (5).

7. The fixture for mounting multiple IGBT transistors and rectifier diodes according to claim 6, characterized in that, The base (7) includes: The upright plate (701) is connected to the outside of the first limiting plate (4) or the outside of the second limiting plate (5); A horizontal plate (702) is connected to one end of the vertical plate (701) and is parallel to the horizontal plane.

8. The fixture for mounting multiple IGBT transistors and rectifier diodes according to claim 7, characterized in that, The upright plate (701) is connected to the first limiting plate (4) or the second limiting plate (5) by a pin.

9. The fixture for mounting multiple IGBT transistors and rectifier diodes according to claim 1, characterized in that, The surfaces of the first limiting plate (4) and the second limiting plate (5) are chrome plated.

Images