CN216700615U

CN216700615U - Novel IGBT gate drive circuit board

Info

Publication number: CN216700615U
Application number: CN202123292140.5U
Authority: CN
Inventors: 秦井武; 李小琼; 秦美仙
Original assignee: Shenzhen Youlian Electric Technology Co ltd
Current assignee: Shenzhen Youlian Electric Technology Co ltd
Priority date: 2021-12-25
Filing date: 2021-12-25
Publication date: 2022-06-07
Anticipated expiration: 2031-12-25

Abstract

The utility model discloses a novel IGBT gate pole driving circuit board which comprises an IGBT module, wherein a first placing plate is movably arranged above the IGBT module, a gate pole plate is movably arranged above the first placing plate, a second placing plate is movably arranged above the gate pole plate, a driving circuit board is movably arranged above the second placing plate, heat conducting plates are fixedly arranged on the outer side surfaces of the first placing plate and the second placing plate, sleeves are fixedly arranged at four corners of the first placing plate and the second placing plate, fixing holes are formed in the lower surface of the IGBT module close to the four corners, and threaded holes are formed in the upper surface of the IGBT module close to the four corners. According to the novel IGBT gate drive circuit board, the drive circuit board and the IGBT module can be movably connected, so that the drive circuit board and the IGBT module are convenient to disassemble and assemble, meanwhile, the IGBT module can be quickly fixed and disassembled with the drive circuit boards with different sizes, and accumulated heat between the drive circuit board and the IGBT module can be quickly led out.

Description

Novel IGBT gate drive circuit board

Technical Field

The utility model relates to the field of driving circuit boards, in particular to a novel IGBT gate driving circuit board.

Background

The traditional IGBT module and driving circuit board assembly structure has two modes, the first mode is that the driving circuit board is connected with the IGBT module through a lead, the driving circuit board is connected with the IGBT module through the lead, the signal transmission distance is long, the anti-jamming capability is poor, and the normal work of the IGBT module is influenced, and the other mode is that the driving circuit board is directly welded on the IGBT module;

the notice number is: CN202586869U, disclosing a structure for assembling an IGBT module and a driving circuit board of a motor, comprising an IGBT module (1) and a driving circuit board (2), a gate plate (3) is arranged between the IGBT module (1) and the driving circuit board (2), a shielding layer (31) is arranged on the gate plate (3), the gate plate (3) is arranged on the IGBT module (1) and is electrically connected with the IGBT module (1), the driving circuit board (2) is arranged on the gate plate (3) and is electrically connected with the gate plate (3), the shielding layer (31) isolates the IGBT module (1) and the driving circuit board (2), the structure is simple and compact, the anti-interference capability is strong, the normal work of the module is ensured, certain defects still exist when in use, the driving circuit board is directly welded and arranged above the gate plate, the driving circuit board is inconvenient to be detached and installed during maintenance, and heat is easy to accumulate between the driving circuit board and the IGBT module, the heat between the two cannot be rapidly conducted out.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a novel IGBT gate drive circuit board which can effectively solve the problems in the background technology.

In order to achieve the purpose, the utility model adopts the technical scheme that:

the utility model provides a novel IGBT gate pole drive circuit board, includes the IGBT module, IGBT module top movable mounting has the board of placing No. one, place board top movable mounting has the gate plate one number, gate plate top movable mounting has the board of placing No. two, place board top movable mounting has drive circuit board No. two.

Preferably, the outer side surfaces of the first placing plate and the second placing plate are fixedly provided with heat conducting plates, and the four corners of the first placing plate and the four corners of the second placing plate are fixedly provided with sleeves.

Preferably, the lower surface of the IGBT module is provided with fixing holes close to the four corners, and the upper surface of the IGBT module is provided with threaded holes close to the four corners.

Preferably, bolts are movably mounted on the upper portion of the second placing plate close to four corners, penetrate through the sleeve and are movably connected with the threaded holes, and the bolts are movably connected with the sleeve.

Preferably, threaded grooves are formed in the upper surfaces of the first placing plate and the second placing plate, and screws are movably embedded into the upper surfaces of the door polar plate and the driving circuit board close to four corners.

Preferably, through holes are formed in the upper surfaces of the door pole plate and the driving circuit board close to four corners, and the screws penetrate through the through holes and are movably connected with the thread grooves.

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

according to the utility model, the gate plate is placed on the upper surface of the first placing plate, the gate plate is screwed into the threaded groove after passing through the through hole by using a screw, the gate plate is fixedly connected with the first placing plate, and similarly, the screw passes through the through hole and is screwed into the threaded groove at the corresponding position, so that the driving circuit board is fixedly connected with the second placing plate, then the bolt passes through the sleeves at the four corners of the first placing plate and the second placing plate and is screwed into the threaded hole, so that the driving circuit board and the IGBT module are fixed, the driving circuit board and the IGBT module can be movably connected, the driving circuit board and the IGBT module can be conveniently detached and installed during maintenance, meanwhile, the IGBT module can be rapidly fixed and detached with the driving circuit boards with different sizes, and the heat conduction plate can rapidly guide out the accumulated heat between the driving circuit board and the IGBT module.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a novel IGBT gate driving circuit board according to the present invention;

FIG. 2 is a disassembled view of the whole structure of a novel IGBT gate driving circuit board of the utility model;

fig. 3 is an oblique cross-sectional view of a novel IGBT gate drive circuit board of the present invention.

In the figure: 1. an IGBT module; 101. a fixing hole; 102. a threaded hole; 103. a bolt; 2. a gate electrode plate; 201. a through hole; 202. a screw; 3. a drive circuit board; 4. a first placing plate; 401. a second placing plate; 402. a sleeve; 403. a heat conducting plate; 404. a thread groove.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the utility model easy to understand, the utility model is further described with the specific embodiments.

The first embodiment is as follows:

as shown in fig. 1-3, a novel IGBT gate driving circuit board includes an IGBT module 1, a first placing plate 4 is movably mounted above the IGBT module 1, a gate plate 2 is movably mounted above the first placing plate 4, a second placing plate 401 is movably mounted above the gate plate 2, and a driving circuit board 3 is movably mounted above the second placing plate 401;

heat conducting plates 403 are fixedly arranged on the outer side surfaces of the first placing plate 4 and the second placing plate 401, and sleeves 402 are fixedly arranged at the four corners of the first placing plate 4 and the second placing plate 401; fixing holes 101 are formed in the lower surface of the IGBT module 1 close to the four corners, and threaded holes 102 are formed in the upper surface of the IGBT module 1 close to the four corners; bolts 103 are movably mounted on the upper portion of the second placing plate 401 close to the four corners, the bolts 103 penetrate through the sleeve 402 and are movably connected with the threaded holes 102, and the bolts 103 are movably connected with the sleeve 402; threaded grooves 404 are formed in the upper surfaces of the first placing plate 4 and the second placing plate 401, and screws 202 are movably embedded and mounted on the upper surfaces of the gate plate 2 and the driving circuit board 3 close to four corners; door

polar plate

2 and 3 upper surface of dirver circuit board are close four corners department and have all seted up through-hole 201, screw 202 runs through-hole 201 and thread groove 404 swing joint, screw 202 passes inside the thread groove 404 of twist corresponding position behind the through-hole 201, make dirver circuit board 3 and No. two place board 401 fixed connection, then pass bolt 103 through the sleeve 402 of placing board 4 and No. two place board 401 four corners, make it twist inside screw hole 102, thereby it is fixed with dirver circuit board 3 and IGBT module 1, thereby can make dirver circuit board 3 and IGBT module 1 swing joint, make its convenient to detach and installation when the maintenance, make IGBT module 1 can fix fast with the driving circuit board 3 of equidimension not and dismantle simultaneously, heat-conducting plate 403 exports the heat of piling up between dirver circuit board 3 and the IGBT module 1 fast.

Example two:

it should be noted that, the utility model is a novel IGBT gate drive circuit board, when in use, the door polar plate 2 is placed on the upper surface of the first placing plate 4, the screw 202 penetrates through the through hole 201 and is screwed into the threaded groove 404, the door polar plate 2 and the first placing plate 4 are fixedly connected, similarly, the screw 202 penetrates through the through hole 201 and is screwed into the threaded groove 404 at the corresponding position, so that the driving circuit board 3 and the second placing plate 401 are fixedly connected, bolts 103 are then inserted through sleeves 402 at the four corners of the first placing plate 4 and the second placing plate 401, screwed into the screw holes 102, thereby fixing the driving circuit board 3 and the IGBT module 1, and enabling the driving circuit board 3 and the IGBT module 1 to be movably connected, so that the driving circuit board 3 and the IGBT module 1 are convenient to disassemble and assemble during maintenance, meanwhile, the IGBT module 1 can be rapidly fixed and detached with the driving circuit boards 3 of different sizes, and the heat conduction plate 403 rapidly guides out accumulated heat between the driving circuit boards 3 and the IGBT module 1.

The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.

Claims

1. The utility model provides a novel IGBT gate pole drive circuit board which characterized in that: including IGBT module (1), IGBT module (1) top movable mounting has board (4) of placing No. one, place board (4) top movable mounting has door polar plate (2) No. one, door polar plate (2) top movable mounting has board (401) of placing No. two, place board (401) top movable mounting has drive circuit board (3) No. two.

2. The novel IGBT gate drive circuit board of claim 1, characterized in that: the outer side surfaces of the first placing plate (4) and the second placing plate (401) are fixedly provided with heat conducting plates (403), and four corners of the first placing plate (4) and the second placing plate (401) are fixedly provided with sleeves (402).

3. The novel IGBT gate drive circuit board of claim 2, characterized in that: the IGBT module (1) lower surface is close to four corners and all has seted up fixed orifices (101), IGBT module (1) upper surface is close to four corners and all has seted up screw hole (102).

4. The novel IGBT gate drive circuit board of claim 3, characterized in that: bolts (103) are movably mounted on the upper portion of the second placing plate (401) close to four corners, the bolts (103) penetrate through the sleeve (402) and are movably connected with the threaded holes (102), and the bolts (103) are movably connected with the sleeve (402).

5. The novel IGBT gate drive circuit board of claim 4, characterized in that: threaded grooves (404) are formed in the upper surfaces of the first placing plate (4) and the second placing plate (401), and screws (202) are movably embedded in the upper surfaces of the door pole plate (2) and the driving circuit board (3) close to four corners.

6. The novel IGBT gate drive circuit board of claim 5, characterized in that: through holes (201) are formed in the upper surfaces of the door polar plate (2) and the driving circuit board (3) close to four corners, and the screws (202) penetrate through the through holes (201) and are movably connected with the thread grooves (404).