CN117116882A

CN117116882A - IGBT module mounting jig

Info

Publication number: CN117116882A
Application number: CN202311166434.4A
Authority: CN
Inventors: 杨石祥; 周兵; 杨雅楠
Original assignee: Anhui Jixin Microelectronics Technology Co ltd
Current assignee: Anhui Jixin Microelectronics Technology Co ltd
Priority date: 2023-09-11
Filing date: 2023-09-11
Publication date: 2023-11-24

Abstract

The invention discloses an IGBT module mounting jig, which is characterized in that a radiator is fixed from two lateral sides of the radiator through a lateral clamp, the radiator is fixed from two longitudinal sides of the radiator through a longitudinal clamp, the radiator can be fixed and limited at the center of the top of a workbench through the cooperation of the lateral clamp and the longitudinal clamp, an IGBT module mounting frame is arranged, an IGBT module body is positioned in a mounting space enclosed between a pressing groove frame and the radiator, an adjusting bolt is screwed into a threaded blind hole at the top of a support column, the IGBT module mounting frame is limited and fixed at the center of the top of the radiator, and the radiator and the IGBT module body are jointly limited and fixed, so that the IGBT module body can be accurately mounted at the center of the radiator, the best radiating effect is achieved, the IGBT module is accurately mounted on the radiator without causing unnecessary excessive junction temperature, the premature failure of the IGBT module is avoided, and the service life of the IGBT module is prolonged.

Description

IGBT module mounting jig

Technical Field

The invention relates to the technical field of IGBT module production equipment, in particular to an IGBT module installation jig.

Background

The IGBT module mainly includes a copper-clad ceramic substrate structure (DBC board), an IGBT chip, a diode chip, an NTC temperature sensor, power terminals, signal terminals, and the like. The IGBT module is an important device of the integrated power electronic module, is widely used for electric automobiles, uninterruptible power supplies, wind turbines and the like, plays an extremely important role in the industrial field, has the advantages of MOSFETs and GTRs, integrates the characteristics of high frequency, high voltage, large current and the like, can effectively save energy and reduce emission, and is a necessary direction for future application and development.

In recent years, with the development of miniaturization of power modules and continuous improvement of power levels, the IGBT module inevitably emits more heat, and once overheated, the IGBT module directly threatens the operation reliability of the IGBT, so as to solve the problem of heat dissipation of the IGBT module, at present, the IGBT module is mainly installed on a radiator with a heat dissipation system, and the heat generated by the IGBT module is conducted to the radiator through direct contact between the IGBT module and the radiator, if the IGBT module is incorrectly installed on the radiator, the unnecessarily high junction temperature can be caused, so that the IGBT module fails too early, the service life of the IGBT module is greatly reduced, and therefore, the correct installation of the IGBT module is very important, and therefore, the invention of an IGBT module installation jig is needed.

Disclosure of Invention

The invention aims to provide an IGBT module mounting jig, which solves the problems that if an IGBT module is incorrectly mounted on a radiator, too high junction temperature can be caused, so that the IGBT module is in premature failure, and the service life of the IGBT module is greatly shortened.

The aim of the invention can be achieved by the following technical scheme:

the utility model provides an IGBT module installation tool, includes the base and sets up the workstation on the base, its characterized in that: the workbench comprises a workbench, a radiator, a horizontal sliding chute, a horizontal clamp, a longitudinal clamp and a horizontal clamp, wherein the workbench is provided with the horizontal sliding chute, the horizontal sliding chute is internally provided with the horizontal clamp in a sliding manner, the horizontal clamp is used for fixing the radiator from the two horizontal sides of the radiator, the longitudinal clamp is used for fixing the radiator from the two longitudinal sides of the radiator, and the radiator can be fixedly limited in the center of the workbench top by matching with the longitudinal clamp;

the vertical anchor clamps include fixed inlay locate two motors of workstation top, and two motor symmetry set up in horizontal spout both ends, the equal fixedly connected with driving plate in axis of rotation top of two motors, the both ends of driving plate all are provided with the rotation connecting piece, two the same end of driving plate is passed through rotation connecting piece swing joint has the limiting plate, the limiting plate with the driving plate forms an angularly adjustable parallelogram frame jointly, horizontal anchor clamps are located in the parallelogram frame.

As a further scheme of the invention: the rotational connector includes:

the first bearings are fixedly embedded into the end part of the driving plate and the end part of the limiting plate respectively;

and two ends of the connecting shaft are fixedly inserted into the first bearings respectively.

As a further scheme of the invention: the transverse fixture comprises:

the second motor is fixedly arranged on the outer side of the workbench;

the transverse screw rod is rotatably arranged in the transverse sliding groove, and one end of the transverse screw rod extends to the outer side of the workbench and is fixedly connected with the rotating shaft of the second motor;

the two sliding seats are symmetrically sleeved at two ends of the transverse screw rod, can move on the transverse screw rod in opposite directions along with the rotation of the transverse screw rod, and are fixedly provided with supporting columns at the tops;

the two second bearings are fixedly sleeved on the tops of the two support columns respectively, and the second bearings are located above the workbench.

As a further scheme of the invention: the IGBT module mounting frame is provided with a groove pressing frame matched with the IGBT module body, a mounting space for accommodating the IGBT module body is enclosed between the groove pressing frame and the radiator, two ends of the IGBT module mounting frame are respectively provided with an adjusting bolt, and the adjusting bolts are used for limiting and fixing the IGBT module mounting frame at the center of the top of the radiator.

As a further scheme of the invention: the center of the top of the support column is provided with threaded blind holes matched with the adjusting bolts, and two ends of the IGBT module mounting rack are fixed at the top of the support column correspondingly through the matching of the adjusting bolts and the threaded blind holes.

As a further scheme of the invention: the workbench below the connecting shaft is provided with arc-shaped sliding grooves, and the opening directions of the arc-shaped sliding grooves are matched with the movement track corresponding to the connecting shaft.

As a further scheme of the invention: the connecting axle bottom is fixed to be provided with spacing post, spacing post bottom extends to in the arc spout, spacing post bottom activity is provided with the pulley assembly, pulley assembly slip joint in the arc spout inner wall.

As a further scheme of the invention: the pulley assembly includes:

the third bearing is fixedly sleeved on the periphery of the bottom end of the limiting column;

the limiting pulleys are symmetrically arranged on the periphery of the third bearing through connecting rods, and the limiting pulleys are in sliding clamping connection with the inner wall of the arc-shaped chute.

As a further scheme of the invention: mounting through holes are respectively formed in four corners of the base.

The invention has the beneficial effects that:

(1) During use, the radiator is fixed from the two lateral sides of the radiator through the transverse clamp, the radiator is fixed from the two longitudinal sides of the radiator through the longitudinal clamp, the radiator can be fixed and limited at the center of the top of the workbench through the transverse clamp and the longitudinal clamp, and then the radiator cannot move when the IGBT module is mounted on the radiator, so that the mounting quality of the IGBT module is improved.

(2) Through setting up IGBT module mounting bracket, make IGBT module body be located the installation space that encloses between indent frame and the radiator, screw in the screw thread blind hole at support column top with adjusting bolt, spacing fixed at radiator top center with the IGBT module mounting bracket, through spacing fixed jointly to radiator and IGBT module body for can be accurate install at the radiator center at the installation IGBT module body, reach best radiating effect, the IGBT module is accurate installs on the radiator, can not lead to unnecessary too high junction temperature, avoid the premature failure of IGBT module, the life of extension IGBT module.

(3) Through setting up pulley assembly and spacing post, improve the stability of drive plate and limiting plate when rotating to improve the stability that vertical anchor clamps held the radiator, finally improve IGBT module's installation quality.

Drawings

The invention is further described below with reference to the accompanying drawings.

FIG. 1 is a perspective view of the overall structure of the present invention;

FIG. 2 is a schematic elevational cross-sectional view of the overall structure of the present invention;

FIG. 3 is a schematic top view of the structure of FIG. 1;

FIG. 4 is a schematic top view of the structure of the present invention when the heat sink is limited and fixed;

FIG. 5 is a schematic top view of the IGBT module mounting bracket of FIG. 4;

fig. 6 is a schematic front view of the IGBT module mounting structure of the invention;

fig. 7 is a schematic cross-sectional view of a limiting pulley of the present invention disposed in an arc chute.

In the figure: 1. a base; 2. a work table; 3. a transverse chute; 4. a motor I; 5. a driving plate; 6. a first bearing; 7. a limiting plate; 8. a motor II; 9. a transverse screw; 10. a slide; 11. a support column; 12. a second bearing; 13. IGBT module mounting rack; 14. pressing a groove frame; 15. an adjusting bolt; 16. an arc chute; 17. a limit column; 18. a bearing III; 19. a limit pulley; 20. mounting through holes; 21. a heat sink.

Detailed Description

The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.

Example 1

Referring to fig. 1-7, an embodiment of the present invention provides an IGBT module mounting fixture, including a base 1 and a table 2 disposed on the base 1, wherein four corners of the base 1 are respectively provided with a mounting through hole 20, when in use, the base 1 is fixedly mounted on an operation table surface through the mounting through holes 20, the top of the table 2 is provided with a transverse chute 3, a transverse clamp is slidably disposed in the transverse chute 3, the transverse clamp is used for fixing the radiator 21 from two transverse sides, the top of the table 2 is also provided with a longitudinal clamp, the longitudinal clamp is used for fixing the radiator 21 from two longitudinal sides of the radiator 21, the radiator 21 can be fixedly limited at the top center of the table 2 by matching with the longitudinal clamp, and subsequently, when the IGBT module is mounted on the radiator 21, the radiator 21 cannot move.

As shown in fig. 1, in this embodiment, the longitudinal fixture includes two motors 4 fixedly embedded in the top of the workbench 2, the rotation axes of the motors 4 are vertically exposed out of the top of the workbench 2, the two motors 4 are symmetrically arranged at two ends of the horizontal chute 3, the tops of the rotation axes of the motors 4 are fixedly connected with driving plates 5, the driving plates 5 rotate with the rotation axes as axes, rotation connectors are respectively arranged at two ends of the driving plates 5, the same ends of the driving plates 5 are movably connected with limiting plates 7 through the rotation connectors, the limiting plates 7 and the driving plates 5 form an angle-adjustable parallelogram frame together, and the horizontal fixture is located in the parallelogram frame.

As shown in fig. 2, in the present embodiment, the rotary joint comprises a bearing 6 and a joint shaft,

the two first bearings 6 are fixedly embedded in the end part of the driving plate 5 and the end part of the limiting plate 7 respectively, and the two ends of the connecting shaft are fixedly inserted in the two first bearings 6 respectively, so that the limiting plate 7 can rotate freely relative to the driving plate 5.

As shown in fig. 2, in the present embodiment, the transverse fixture includes a No. two motor 8, a transverse screw 9, two carriages 10, two support columns 11, and two No. two bearings 12.

Specifically, the second motor 8 is fixedly arranged on the outer side of the workbench 2, the rotation shaft of the second motor 8 faces the workbench 2, the transverse screw rod 9 is rotatably arranged in the transverse sliding groove 3, one end of the transverse screw rod 9 penetrates through the workbench 2 to extend to the outer side of the workbench 2 and is fixedly connected with the rotation shaft of the second motor 8, the second motor 8 is used for driving the transverse screw rod 9 to rotate, the two sliding seats 10 are symmetrically sleeved at two ends of the transverse screw rod 9, as shown in fig. 3, the two sliding seats 10 can move on the transverse screw rod 9 in opposite directions along with the rotation of the transverse screw rod 9 when the transverse screw rod 9 rotates, support columns 11 are fixedly arranged at the tops of the two sliding seats 10, the two second bearings 12 are fixedly sleeved at the tops of the two support columns 11 respectively, and the second bearings 12 are positioned above the workbench 2, so that the two sliding seats 10 can move relatively above the workbench 2, and therefore the radiator 21 is limited and fixed from two lateral sides of the radiator 21.

Example two

Referring to fig. 5 and 6, on the basis of the first embodiment, the IGBT module mounting fixture provided in this embodiment further includes an IGBT module mounting frame 13, a pressing groove frame 14 matched with the IGBT module body is provided on the IGBT module mounting frame 13, a mounting space for accommodating the IGBT module body is enclosed between the pressing groove frame 14 and the radiator 21, adjusting bolts 15 are respectively provided at two ends of the IGBT module mounting frame 13, threaded blind holes matched with the adjusting bolts 15 are provided at the centers of the tops of the support columns 11, two ends of the IGBT module mounting frame 13 are fixed at the tops of the corresponding support columns 11 through the matching of the adjusting bolts 15 and the threaded blind holes, and the adjusting bolts 15 are used for limiting and fixing the IGBT module mounting frame 13 at the centers of the tops of the radiator 21.

During the implementation, after the radiator 21 is limited and fixed at the center of the top of the workbench 2 by the transverse clamp and the longitudinal clamp, the IGBT module body is placed at the center of the top of the radiator 21, then the IGBT module mounting frame 13 is sleeved on the IGBT module body, so that the IGBT module body is positioned in a mounting space enclosed between the pressing groove frame 14 and the radiator 21, finally the adjusting bolt 15 is screwed into a threaded blind hole at the top of the supporting column 11, namely, the IGBT module mounting frame 13 is limited and fixed at the center of the top of the radiator 21, the radiator 21 and the IGBT module body are limited and fixed together, so that the IGBT module body can be accurately mounted at the center of the radiator 21, the best radiating effect is achieved, the IGBT module is accurately mounted on the radiator 21, unnecessary excessive junction temperature is not caused, the IGBT module is prevented from being failed prematurely, and the service life of the IGBT module is prolonged.

Example III

As shown in fig. 1, 2 and 7, on the basis of the second embodiment, the IGBT module mounting jig provided in this embodiment is provided with arc-shaped sliding grooves 16 on the working table 2 located below the connecting shaft, and the opening direction of the arc-shaped sliding grooves 16 is matched with the movement track of the corresponding connecting shaft.

As shown in fig. 2, the bottom of the connecting shaft is fixedly provided with a limit post 17, the bottom end of the limit post 17 extends into the arc chute 16, the bottom end of the limit post 17 is movably provided with a pulley assembly, and the pulley assembly is slidably clamped on the inner wall of the arc chute 16.

As shown in fig. 7, the pulley assembly includes No. three bearings 18 and limiting pulleys 19, wherein, no. three bearings 18 are fixedly sleeved on the periphery of the bottom end of the limiting column 17, two limiting pulleys 19 are symmetrically arranged on the periphery of No. three bearings 18 through connecting rods, the limiting pulleys 19 are slidably clamped on the inner wall of the arc chute 16, when the driving plate 5 rotates, the connecting shaft drives the limiting column 17 to move in the arc chute 16, under the rotation of No. three bearings 18, two limiting pulleys 19 are always clamped on the inner wall of the arc chute 16 and roll on the inner wall of the arc chute 16, the stability of the driving plate 5 and the limiting plate 7 during rotation is improved through the arrangement of the pulley assembly and the limiting column 17, namely, the stability of the clamping of the longitudinal clamp to the radiator 21 is improved, and finally the installation quality of the I GBT module is improved.

In the description of the present invention, it should be understood that the terms "upper," "lower," "left," "right," "front," "rear," and the like indicate an orientation or a positional relationship based on that shown in the drawings, and are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, as well as a specific orientation configuration and operation, and thus should not be construed as limiting the present invention.

In addition, unless explicitly stated or limited otherwise, the terms "mounted," "connected," "coupled," and the like should be construed broadly, and may be, for example, fixedly attached, detachably attached, or integrally attached; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The foregoing detailed description of the preferred embodiments of the invention should not be taken as limiting the scope of the invention. All equivalent changes and modifications within the scope of the present invention are intended to be covered by the present invention.

Claims

1. The utility model provides an IGBT module installation tool, includes base (1) and sets up workstation (2) on base (1), its characterized in that: a transverse sliding groove (3) is formed in the top of the workbench (2), a transverse clamp is arranged in the transverse sliding groove (3) in a sliding manner, the transverse clamp is used for fixing the radiator (21) from two transverse sides, a longitudinal clamp is also arranged at the top of the workbench (2), the longitudinal clamp is used for fixing the radiator (21) from two longitudinal sides, and the radiator (21) can be fixed and limited at the center of the top of the workbench (2) by matching with the longitudinal clamp;

the vertical anchor clamps include fixed inlay locate two motor (4) at workstation (2) top, and two motor (4) symmetry set up in horizontal spout (3) both ends, the equal fixedly connected with drive plate (5) in axis of rotation top of two motor (4), the both ends of drive plate (5) all are provided with rotation connecting piece, two the same end of drive plate (5) is through rotation connecting piece swing joint has limiting plate (7), limiting plate (7) with drive plate (5) form an angularly adjustable parallelogram frame jointly, horizontal anchor clamps are located in the parallelogram frame.

2. The ibbt module mounting fixture of claim 1, wherein the rotational connector comprises:

the first bearings (6) are fixedly embedded in the end parts of the driving plate (5) and the end parts of the limiting plates (7) respectively;

and two ends of the connecting shaft are respectively fixedly inserted into the first bearings (6).

3. The ibbt module mounting fixture of claim 2, wherein the transverse fixture comprises:

a second motor (8) is fixedly arranged outside the workbench (2);

the transverse screw rod (9) is rotatably arranged in the transverse sliding groove (3), and one end of the transverse screw rod (9) extends to the outer side of the workbench (2) and is fixedly connected with the rotating shaft of the second motor (8);

the two sliding seats (10) are symmetrically sleeved at two ends of the transverse screw rod (9), the two sliding seats (10) can move on the transverse screw rod (9) in opposite directions along with the rotation of the transverse screw rod (9), and supporting columns (11) are fixedly arranged at the tops of the two sliding seats (10);

the two second bearings (12) are fixedly sleeved at the tops of the two supporting columns (11) respectively, and the second bearings (12) are located above the workbench (2).

4. An I GBT module mounting fixture according to claim 3, further comprising an I GBT module mounting frame (13), wherein a pressing groove frame (14) matched with the I GBT module body is arranged on the I GBT module mounting frame (13), a mounting space for accommodating the I GBT module body is enclosed between the pressing groove frame (14) and the radiator (21), adjusting bolts (15) are respectively arranged at two ends of the I GBT module mounting frame (13), and the adjusting bolts (15) are used for limiting and fixing the I GBT module mounting frame (13) at the top center of the radiator (21).

5. The I GBT module mounting fixture according to claim 4, wherein threaded blind holes matched with the adjusting bolts (15) are formed in the top centers of the supporting columns (11), and two ends of the I GBT module mounting frame (13) are fixed at the tops of the corresponding supporting columns (11) through the matching of the adjusting bolts (15) and the threaded blind holes.

6. An installation jig for an I GBT module according to any one of claims 2 to 5, wherein arc-shaped sliding grooves (16) are formed in the working table (2) located below the connecting shaft, and the opening direction of the arc-shaped sliding grooves (16) is matched with the movement track corresponding to the connecting shaft.

7. The I GBT module mounting jig according to claim 6, wherein a limit post (17) is fixedly arranged at the bottom of the connecting shaft, the bottom end of the limit post (17) extends into the arc-shaped chute (16), a pulley assembly is movably arranged at the bottom end of the limit post (17), and the pulley assembly is slidably clamped on the inner wall of the arc-shaped chute (16).

8. The ibbt module mounting fixture of claim 7, wherein said pulley assembly comprises:

a third bearing (18) is fixedly sleeved on the periphery of the bottom end of the limiting column (17);

the limiting pulleys (19), two limiting pulleys (19) are symmetrically arranged on the periphery of the third bearing (18) through connecting rods, and the limiting pulleys (19) are in sliding clamping connection with the inner wall of the arc-shaped chute (16).

9. The I GBT module mounting jig according to claim 1, wherein mounting through holes (20) are respectively formed in four corners of the base (1).