CN220693629U

CN220693629U - Stable structure for IGBT device

Info

Publication number: CN220693629U
Application number: CN202322073884.0U
Authority: CN
Inventors: 夏华忠; 李健
Original assignee: Jiangsu Donghai Semiconductor Co ltd
Current assignee: Jiangsu Donghai Semiconductor Co ltd
Priority date: 2023-08-03
Filing date: 2023-08-03
Publication date: 2024-03-29
Anticipated expiration: 2033-08-03

Abstract

The utility model discloses a stable structure for an IGBT device, which comprises a shell, wherein a top cover is movably connected to the top of the shell, a plurality of IGBT device bodies are fixedly connected to the inside of the shell, a plurality of mounting blocks are fixedly connected to the left side and the right side of the shell, bolts are connected to the inner threads of the mounting blocks, circuit board bodies are connected to the surface threads of the bolts, and a fixing unit is arranged inside the shell; the fixing unit comprises a plurality of mounting plates fixedly connected inside the shell. According to the IGBT device, the tension spring drives the sliding sleeve to move towards the middle of the sliding rod through pulling the vertical rod, so that the connecting rod is gradually vertical, the electromagnetic plate is attached to the magnetic plate and fixed with the magnetic plate through magnetic force, and when the bolt loosens, the situation that the IGBT device cannot be separated from the circuit board body can be achieved through the fixation of the electromagnetic plate and the magnetic plate, and therefore stability of the IGBT device is improved.

Description

Stable structure for IGBT device

Technical Field

The utility model relates to the technical field of IGBT (insulated gate bipolar transistor), in particular to a stable structure for an IGBT device.

Background

The IGBT and the insulated gate bipolar transistor are composite full-control voltage-driven power semiconductor devices formed by the bipolar transistor and the insulated gate field effect transistor, and have the advantages of high input impedance of the metal oxide semiconductor field effect transistor and low conduction voltage drop of the power transistor.

At present, chinese patent with publication number CN218769512U discloses a novel IGBT device for sewing machine, which comprises a base, the left and right sides of base inner chamber all fixedly connected with movable rod, the front and back of movable rod surface all overlaps to be connected with first spring, and two first spring opposite side all fixedly connected with movable block, the inside and the surface swing joint of movable rod of movable block, the top of movable block articulates there is the bracing piece, the other end of bracing piece articulates there is the heating panel, the fixed orifices has all been seted up at the front and back of heating panel top both sides, the top of heating panel is provided with the IGBT device body, the front and back of IGBT device body surface both sides all threaded connection has the gim peg; the utility model not only can buffer and protect the IGBT device, but also can conveniently dissipate heat when the IGBT device works, and solves the problems that the traditional IGBT device does not have the function of buffering and damping and is inconvenient to dissipate heat.

According to the above patent, the existing part of IGBT devices do not have the function of multiple fixing during installation, and when the sewing machine is used, the bolt for fixing the IGBT devices may be loosened, if the bolt is not multiple fixed, the IGBT devices may be dropped, so that the stability of the IGBT devices during use is reduced.

Disclosure of Invention

In order to solve the problems in the prior art, the utility model aims to provide a stable structure for an IGBT device, which has the advantage of multiple fixation, solves the problems that the existing part of IGBT devices do not have multiple fixation function during installation, and bolts for fixing the IGBT device are likely to loose during the use of a sewing machine, and the IGBT device is likely to fall off if the bolts are not subjected to multiple fixation, so that the stability of the IGBT device during the use is reduced.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the stable structure for the IGBT device comprises a shell, wherein a top cover is movably connected to the top of the shell, a plurality of IGBT device bodies are fixedly connected to the inside of the shell, a plurality of mounting blocks are fixedly connected to the left side and the right side of the shell, bolts are connected to the inner threads of the mounting blocks, circuit board bodies are connected to the surfaces of the bolts in a threaded mode, and fixing units are arranged inside the shell;

the fixed unit includes a plurality of mounting panels of fixed connection inside the casing, the inboard fixedly connected with slide bar of mounting panel, the surface cover of slide bar is equipped with a plurality of sliding sleeves and extension springs, and the both ends of extension spring respectively with sliding sleeve and mounting panel fixed connection, the top joint of sliding sleeve has the montant, and the upper end of montant extends to the top of top cap, the front end of sliding sleeve articulates there is the connecting rod, the connecting rod is kept away from the one end of sliding sleeve and articulates there is the electromagnetic plate, the top fixedly connected with magnetic plate of circuit board body, and the magnetic plate can paste mutually with the electromagnetic plate, the left side fixedly connected with battery of casing.

Preferably, the bottom of the top cover is fixedly connected with a plurality of protruding blocks, and the protruding blocks are clamped with the shell.

Preferably, the surface of the storage battery is sleeved with a protective shell, and the protective shell is fixedly connected with the shell.

As the preferable mode of the utility model, the top of the vertical rod is fixedly connected with a pull ring, and the pull ring can be attached to a finger.

In the present utility model, preferably, balls are connected to both the left and right sides of the electromagnetic plate in a rolling manner, and the balls are connected to the housing in a sliding manner.

Preferably, the bottom of the shell is fixedly connected with a plurality of pressure sensors, and the pressure sensors are attached to the magnetic plate.

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

1. according to the IGBT device, the tension spring drives the sliding sleeve to move towards the middle of the sliding rod through pulling the vertical rod, so that the connecting rod is gradually vertical, the electromagnetic plate is attached to the magnetic plate and fixed with the magnetic plate through magnetic force, and when the bolt loosens, the situation that the IGBT device cannot be separated from the circuit board body can be achieved through the fixation of the electromagnetic plate and the magnetic plate, and therefore stability of the IGBT device is improved.

2. According to the utility model, the protruding blocks are arranged, so that the effect of connecting the top cover and the shell can be achieved through the protruding blocks, compared with the method of fixing by using the hasp, the method is more convenient for disassembling the top cover, and the practicability is improved.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

fig. 2 is a cross-sectional view of a structure of the present utility model in fig. 1.

In the figure: 1. a housing; 2. a top cover; 3. an IGBT device body; 4. a mounting block; 5. a bolt; 6. a circuit board body; 7. a fixing unit; 71. a mounting plate; 72. a slide bar; 73. a sliding sleeve; 74. a tension spring; 75. a vertical rod; 76. a connecting rod; 77. an electromagnetic plate; 78. a magnetic plate; 79. a storage battery; 8. a bump; 9. a protective shell; 10. a pull ring; 11. a ball; 12. a pressure sensor.

Detailed Description

The following description of the embodiments of the present utility model 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 utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1 to 2, a stable structure for an IGBT device comprises a housing 1, wherein a top cover 2 is movably connected to the top of the housing 1, a plurality of IGBT device bodies 3 are fixedly connected to the interior of the housing 1, a plurality of mounting blocks 4 are fixedly connected to the left and right sides of the housing 1, bolts 5 are connected to the interior of the mounting blocks 4 in a threaded manner, a circuit board body 6 is connected to the surface of the bolts 5 in a threaded manner, and a fixing unit 7 is arranged in the interior of the housing 1;

the fixed unit 7 includes a plurality of mounting panels 71 of fixed connection in casing 1 inside, the inboard fixedly connected with slide bar 72 of mounting panel 71, slide bar 72's surface cover is equipped with a plurality of sliding sleeves 73 and extension spring 74, and the both ends of extension spring 74 respectively with sliding sleeve 73 and mounting panel 71 fixed connection, the top joint of sliding sleeve 73 has montant 75, and the upper end of montant 75 extends to the top of top cap 2, the front end of sliding sleeve 73 articulates there is connecting rod 76, the one end that sliding sleeve 73 was kept away from to connecting rod 76 articulates there is electromagnetic plate 77, the top fixedly connected with magnetic plate 78 of circuit board body 6, and magnetic plate 78 can paste with electromagnetic plate 77, the left side fixedly connected with battery 79 of casing 1.

Referring to fig. 1, a plurality of bumps 8 are fixedly connected to the bottom of the top cover 2, and the bumps 8 are clamped with the housing 1.

As a technical optimization scheme of the utility model, the effect of connecting the top cover 2 and the shell 1 can be achieved through the protruding block 8 by arranging the protruding block 8, compared with the method of fixing by using a hasp, the method for disassembling the top cover 2 is more convenient, and the practicability is improved.

Referring to fig. 1, a protective case 9 is sleeved on the surface of a storage battery 79, and the protective case 9 is fixedly connected with a housing 1.

As a technical optimization scheme of the utility model, the protective shell 9 is arranged, so that the phenomenon that the storage battery 79 is damaged due to collision of the storage battery 79 outside is avoided, and the protection performance is improved.

Referring to fig. 1, a pull ring 10 is fixedly connected to the top of the vertical rod 75, and the pull ring 10 can be attached to a finger.

As a technical optimization scheme of the utility model, the contact area between the vertical rod 75 and the finger is enlarged by arranging the pull ring 10, so that the vertical rod 75 can be pulled more conveniently, and the practicability is improved.

Referring to fig. 1, balls 11 are rollingly connected to both left and right sides of the electromagnetic plate 77, and the balls 11 are slidably connected to the housing 1.

As a technical optimization scheme of the utility model, by arranging the balls 11, the friction force between the electromagnetic plate 77 and the shell 1 is reduced, and the sliding property of the electromagnetic plate 77 is improved.

Referring to fig. 1, a plurality of pressure sensors 12 are fixedly connected to the bottom of the housing 1, and the pressure sensors 12 are attached to a magnetic plate 78.

As a technical optimization scheme of the utility model, by arranging the pressure sensor 12, when the shell 1 is attached to the magnetic plate 78, the storage battery 79 can be started to supply power to the electromagnetic plate 77 through the induction of the pressure sensor 12, so that the electromagnetic plate 77 generates magnetic force, and the automation is improved.

The working principle and the using flow of the utility model are as follows: when the IGBT device is installed, firstly, the IGBT device is fixed with the circuit board body 6 by screwing the bolt 5, and when the pressure sensor 12 is attached to the magnetic plate 78, the storage battery 79 supplies power to the magnetic plate 77 through the controller to enable the electromagnetic plate 77 to generate positive magnetic force, then, people can pull the pull ring 10 to enable the vertical rod 75 to be far away from the sliding sleeve 73 so as to release the limit of the vertical rod, then, the sliding sleeve 73 moves towards the middle of the sliding rod 72 through the resilience force of the tension spring 74, the connecting rod 76 is enabled to be gradually vertical, the magnetic plate 77 is enabled to move downwards and attached to the magnetic plate 78, meanwhile, because the opposite side of the magnetic plate 78 and the magnetic plate 77 is negative magnetic force, the magnetic plate 77 and the magnetic plate 78 are enabled to be fixed through the principle of opposite attraction, and when the bolt 5 is loosened, the effect of fixing the IGBT device can be achieved through connection between the magnetic plate 77 and the magnetic plate 78, the situation that the IGBT device falls off is avoided, and the stability is improved.

To sum up: this stable structure for IGBT device, through fixed unit 7, solved current part IGBT device and not had the multiple fixed function when the installation, and when sewing machine used, the bolt of fixed IGBT device probably takes place not hard up, if not carrying out multiple fixed to it, can lead to the IGBT device to take place to drop to the problem of IGBT device stability when using has been reduced.

It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a stable structure for IGBT device, includes casing (1), its characterized in that: the top of the shell (1) is movably connected with a top cover (2), a plurality of IGBT device bodies (3) are fixedly connected inside the shell (1), a plurality of mounting blocks (4) are fixedly connected to the left side and the right side of the shell (1), bolts (5) are connected to the inner threads of the mounting blocks (4), circuit board bodies (6) are connected to the surfaces of the bolts (5) in a threaded manner, and fixing units (7) are arranged inside the shell (1);

the utility model discloses a fixed unit (7) is including a plurality of mounting panel (71) of fixed connection in casing (1), the inboard fixedly connected with slide bar (72) of mounting panel (71), the surface cover of slide bar (72) is equipped with a plurality of sliding sleeves (73) and extension spring (74), and the both ends of extension spring (74) respectively with sliding sleeve (73) and mounting panel (71) fixed connection, the top joint of sliding sleeve (73) has montant (75), and the upper end of montant (75) extends to the top of top cap (2), the front end of sliding sleeve (73) articulates there is connecting rod (76), the one end that sliding sleeve (73) was kept away from to connecting rod (76) articulates there is electromagnetic plate (77), the top fixedly connected with magnetic plate (78) of circuit board body (6), and magnetic plate (78) can paste with electromagnetic plate (77), the left side fixedly connected with battery (79) of casing (1).

2. The stable structure for an IGBT device according to claim 1, wherein: the bottom of the top cover (2) is fixedly connected with a plurality of protruding blocks (8), and the protruding blocks (8) are clamped with the shell (1).

3. The stable structure for an IGBT device according to claim 1, wherein: the surface of the storage battery (79) is sleeved with a protective shell (9), and the protective shell (9) is fixedly connected with the shell (1).

4. The stable structure for an IGBT device according to claim 1, wherein: the top of the vertical rod (75) is fixedly connected with a pull ring (10), and the pull ring (10) can be attached to a finger.

5. The stable structure for an IGBT device according to claim 1, wherein: the left side and the right side of the electromagnetic plate (77) are both connected with balls (11) in a rolling way, and the balls (11) are connected with the shell (1) in a sliding way.

6. The stable structure for an IGBT device according to claim 1, wherein: the bottom of the shell (1) is fixedly connected with a plurality of pressure sensors (12), and the pressure sensors (12) are attached to the magnetic plate (78).