CN216928562U

CN216928562U - Integrated radiating fin for buck-boost DC

Info

Publication number: CN216928562U
Application number: CN202220878124.XU
Authority: CN
Inventors: 王阳; 王海平
Original assignee: Beijing Sinohytec Co Ltd
Current assignee: Beijing Sinohytec Co Ltd
Priority date: 2022-04-17
Filing date: 2022-04-17
Publication date: 2022-07-08
Anticipated expiration: 2032-04-17

Abstract

The utility model provides an integrated radiating fin for a buck-boost DC (direct current), which comprises a radiating fin body, wherein a plurality of IGBT (insulated gate bipolar transistor) modules are arranged on the radiating fin body, and a fixing mechanism is connected between each IGBT module and the radiating fin body; the fixing mechanism comprises a mounting bar and two positioning blocks, wherein one side of the mounting bar, which faces the IGBT module, is provided with a long groove, a partition plate is arranged in the center of the inside of the long groove, lead screws are respectively and rotatably arranged on two sides of the partition plate, each lead screw is in threaded connection with a moving block, and the two moving blocks are in one-to-one correspondence connection with the two positioning blocks; two relative one sides of locating piece all are equipped with the mounting groove, and the mounting groove is inside to be equipped with two splint, two splint back of the body one side mutually all with be connected with the spring between the mounting groove inner wall, the all threaded connection in every locating piece center has stop screw. The utility model can effectively realize the heat dissipation requirement of the IGBT in the DC and reduce the occupation of the pipeline volume, thereby promoting the miniaturization realization of the DC.

Description

Integrated radiating fin for buck-boost DC

Technical Field

The utility model mainly relates to the technical field of fuel cell systems, in particular to an integrated radiating fin for a buck-boost DC.

Background

The buck-boost DC is generally applied to a fuel cell system, and the IGBT is used as a main power device with a large internal volume of the DC, and the performance of the IGBT seriously influences the use of the buck-boost DC. An IGBT (insulated gate bipolar transistor) and an insulated gate bipolar transistor are composite fully-controlled voltage-driven power semiconductor devices composed of BJTs (bipolar junction transistors) and MOS (insulated gate field effect transistors), and have the advantages of both high input impedance of MOSFETs and low on-state voltage drop of GTRs, and the IGBT is also referred to as an IGBT module.

At present, due to the arrangement requirements of the buck-boost DC electrical part and a heat dissipation pipeline, the volume of the DC cannot be further reduced, and the application scenes are limited, so that the bottleneck of urgent breakthrough is formed by effective heat dissipation and volume miniaturization in the DC.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides an integrated radiating fin for a buck-boost DC (direct current), which is used for solving the technical problems in the background technology.

The technical scheme adopted by the utility model for solving the technical problems is as follows:

an integrated radiating fin for a buck-boost DC comprises a radiating fin body, wherein a plurality of IGBT modules are arranged on the radiating fin body, and a fixing mechanism is connected between each IGBT module and the radiating fin body; the fixing mechanism comprises a mounting bar and two positioning blocks, wherein an elongated slot is formed in one side of the mounting bar, which faces the IGBT module, a partition plate is installed in the center of the inside of the elongated slot, lead screws are respectively and rotatably installed on two sides of the partition plate, each lead screw is in threaded connection with a moving block, and the two moving blocks are in one-to-one correspondence connection with the two positioning blocks; two the relative one side of locating piece all is equipped with the mounting groove, the inside two splint that are equipped with of mounting groove, two splint back of the body one side mutually all with the mounting groove inner wall between be connected with the spring, every locating piece center all threaded connection has stop screw.

Preferably, one side of the radiating fin body is provided with a cooling water inlet and a cooling water outlet.

Preferably, the mounting bar is fixedly connected with the radiating fin body, and the two positioning blocks are in sliding contact with the radiating fin body.

Preferably, turntables are respectively arranged on two sides of the mounting bar, and the turntables correspond to the screw rods one to one and are connected with the axes.

Preferably, be equipped with two spouts, every on the inside roof of mounting groove the inside fixture block that all slides of spout, two the fixture block is connected with two splint one-to-one respectively.

Preferably, one side of each of the two clamping plates opposite to each other is connected with a protective pad.

Preferably, the lower end of the limit screw is provided with a rubber block.

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

arrange the IGBT module in radiating fin body upper end, part two splint, make the spring shrink, the movable rotating disk, it rotates to drive the lead screw, make the movable block remove, it removes to drive the locating piece, make inside the IGBT module both ends enter into the mounting groove, the mounting groove resets, two splint press from both sides the IGBT module tightly, rotate stop screw, stop screw pushes down, consolidate the IGBT module, realize the installation of IGBT module, effectively fuse heat dissipation water route and IGBT module, utilize radiating fin body structural feature, imbed the IGBT module in the radiating fin, the arrangement demand of pipeline has been reduced when effectively promoting radiating contact area, can effectively realize the heat dissipation demand of IGBT module in the DC and reduce the occupation of pipeline volume, and then promote the miniaturized realization of DC, and be convenient for the installation of IGBT module is dismantled, the practicality has been increased.

The present invention will be explained in detail below with reference to the drawings and specific embodiments.

Drawings

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

FIG. 2 is a partial schematic view of the present invention;

FIG. 3 is a schematic top view of the mounting bar of the present invention;

FIG. 4 is a schematic diagram of a positioning block of the present invention.

In the figure: 1. a heat radiating fin body; 11. a cooling water inlet; 12. a cooling water outlet; 2. an IGBT module; 3. a fixing mechanism; 4. mounting a bar; 41. a long groove; 42. a partition plate; 43. a screw rod; 44. a moving block; 45. a turntable; 5. positioning blocks; 51. mounting grooves; 52. a splint; 53. a spring; 54. a limit screw; 55. a chute; 56. a clamping block; 57. a protective pad; 58. a rubber block.

Detailed Description

In order to facilitate an understanding of the utility model, the utility model will now be described more fully hereinafter with reference to the accompanying drawings, in which several embodiments of the utility model are shown, but which may be embodied in different forms and not limited to the embodiments described herein, but which are provided so as to provide a more thorough and complete disclosure of the utility model.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the knowledge of the terms used herein in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Referring to fig. 1 and 2, the present invention provides a technical solution: the utility model provides a step-up and step-down integrated form radiating fin for DC, includes radiating fin body 1, 1 one side of radiating fin body is equipped with cooling water inlet 11 and cooling water export 12, be equipped with a plurality of IGBT module 2 on the radiating fin body 1, and every all be connected with fixed establishment 3 between IGBT module 2 and the radiating fin body 1, fixed establishment 3 includes mounting bar 4 and two locating pieces 5, effectively fuses heat dissipation water route and IGBT module 2, utilizes radiating fin body 1 structural feature, with IGBT module 2 embedding radiating fin in, has reduced the demand of arranging of pipeline when effectively promoting heat dissipation area of contact, can effectively realize in the DC IGBT module 2 the heat dissipation demand and reduce the occupation of pipeline volume, and then promotes DC's miniaturized realization.

Please refer to fig. 1-3 again, the mounting bar 4 is fixedly connected to the heat dissipating fin body 1, a long groove 41 is disposed on one side of the mounting bar 4 facing the IGBT module 2, a partition plate 42 is disposed in the center of the inside of the long groove 41, lead screws 43 are rotatably disposed on two sides of the partition plate 42, a moving block 44 is connected to each lead screw 43 by a thread, the two moving blocks 44 are connected to the two positioning blocks 5 in a one-to-one correspondence manner, rotary tables 45 are disposed on two sides of the mounting bar 4, and the two rotary tables 45 are connected to the two lead screws 43 in a one-to-one correspondence manner and the axes of the rotary tables are connected. The turntable 45 is rotated to drive the lead screw 43 to rotate, so that the moving block 44 moves to drive the positioning block 5 to move, and the IGBT module 2 is preliminarily fixed.

Please refer to fig. 1-4 again, the two positioning blocks 5 are in sliding contact with the heat dissipation fin body 1, the opposite sides of the two positioning blocks 5 are both provided with mounting grooves 51, two clamping plates 52 are arranged in the mounting grooves 51, a spring 53 is connected between the opposite sides of the two clamping plates 52 and the inner wall of the mounting groove 51, and the center of each positioning block 5 is in threaded connection with a limit screw 54. Be equipped with two spouts 55 on the inside roof of mounting groove 51, every inside all sliding of spout 55 has fixture block 56, two fixture block 56 is connected with two splint 52 one-to-one respectively, and fixture block 56 slides inside spout 55, can guarantee the stability that splint 52 removed, two the relative one side of splint 52 all is connected with protection pad 57, rubber block 58 is installed to stop screw 54 lower extreme, through protection pad 57 and rubber block 58, can avoid the extrusion force too big and lead to IGBT module 2 impaired.

The specific operation mode of the utility model is as follows:

placing the IGBT module 2 at the upper end of the radiating fin body 1, separating the two clamping plates 52, enabling the spring 53 to contract, enabling the rotating disc 45 to drive the screw rod 43 to rotate, enabling the moving block 44 to move, driving the positioning block 5 to move, enabling the two ends of the IGBT module 2 to enter the mounting groove 51, resetting the mounting groove 51, clamping the IGBT module 2 by the two clamping plates 52, rotating the limit screw 54, pressing the limit screw 54 downwards, reinforcing the IGBT module 2, realizing the installation of the IGBT module 2, effectively fusing the radiating water path with the IGBT module 2, embedding the IGBT module 2 into the radiating fin by using the structural characteristics of the radiating fin body 1, effectively improving the radiating contact area, reducing the arrangement requirement of the pipeline, effectively realizing the radiating requirement of the IGBT module 2 in DC, reducing the occupation of the pipeline volume, further promoting the miniaturization realization of DC, and facilitating the installation and disassembly of the IGBT module 2, the practicability is increased.

The utility model is described above with reference to the accompanying drawings, it is obvious that the utility model is not limited to the above-described embodiments, and it is within the scope of the utility model to adopt such insubstantial modifications of the inventive method concept and solution, or to apply the inventive concept and solution directly to other applications without modification.

Claims

1. The utility model provides a step-up and step-down integrated form radiating fin for DC, includes radiating fin body (1), its characterized in that: a plurality of IGBT modules (2) are arranged on the radiating fin body (1), and a fixing mechanism (3) is connected between each IGBT module (2) and the radiating fin body (1);

the fixing mechanism (3) comprises a mounting bar (4) and two positioning blocks (5), wherein a long groove (41) is formed in one side, facing the IGBT module (2), of the mounting bar (4), a partition plate (42) is installed in the center of the inside of the long groove (41), lead screws (43) are respectively installed on two sides of the partition plate (42) in a rotating mode, each lead screw (43) is connected with a moving block (44) in a threaded mode, and the two moving blocks (44) are connected with the two positioning blocks (5) in a one-to-one corresponding mode;

two locating piece (5) relative one side all is equipped with mounting groove (51), mounting groove (51) inside is equipped with two splint (52), two splint (52) back of the body one side all with mounting groove (51) inner wall between be connected with spring (53), every locating piece (5) center all threaded connection has stop screw (54).

2. The integrated heat dissipation fin for buck-boost DC as claimed in claim 1, wherein: and a cooling water inlet (11) and a cooling water outlet (12) are formed in one side of the radiating fin body (1).

3. The integrated heat dissipation fin for buck-boost DC as claimed in claim 1, wherein: the mounting bar (4) is fixedly connected with the radiating fin body (1), and the positioning blocks (5) are in sliding contact with the radiating fin body (1).

4. The integrated heat dissipation fin for buck-boost DC as claimed in claim 1, wherein: and two turntables (45) are respectively arranged on two sides of the mounting bar (4), and the turntables (45) correspond to the screw rods (43) one by one and the axes of the screw rods are connected.

5. The integrated heat dissipation fin for buck-boost DC as claimed in claim 1, wherein: the top wall in the mounting groove (51) is provided with two sliding grooves (55), each sliding groove (55) is internally provided with a clamping block (56) in a sliding manner, and the two clamping blocks (56) are respectively connected with the two clamping plates (52) in a one-to-one correspondence manner.

6. The integrated heat dissipation fin for buck-boost DC as recited in claim 1, wherein: the opposite sides of the two clamping plates (52) are connected with protective pads (57).

7. The integrated heat dissipation fin for buck-boost DC as claimed in claim 1, wherein: and a rubber block (58) is arranged at the lower end of the limit screw rod (54).