CN212277177U

CN212277177U - Wiring board for IGBT wiring

Info

Publication number: CN212277177U
Application number: CN202022033132.8U
Authority: CN
Inventors: 刘阳; 赵洪利; 刘朝毅; 程建华; 董鑫媛; 何梦宇; 杨万坤; 陈义衡; 杨清清; 徐小明; 牟雄
Original assignee: China Academy of Railway Sciences Corp Ltd CARS; Locomotive and Car Research Institute of CARS; Beijing Zongheng Electromechanical Technology Co Ltd; Tieke Aspect Tianjin Technology Development Co Ltd
Current assignee: China Academy of Railway Sciences Corp Ltd CARS; Locomotive and Car Research Institute of CARS; Beijing Zongheng Electromechanical Technology Co Ltd; Tieke Aspect Tianjin Technology Development Co Ltd
Priority date: 2020-09-16
Filing date: 2020-09-16
Publication date: 2021-01-01
Anticipated expiration: 2030-09-16

Abstract

The utility model relates to a wiring board for IGBT wiring, including the wiring board body, spaced apart on the wiring board body and be equipped with first through-hole and second through-hole, the wiring board body can be fixed on IGBT's main terminal or control terminal through first through-hole or second through-hole, can wear to establish the ribbon that is used for the wiring in first through-hole or second through-hole. The utility model discloses a wiring board for IGBT wiring, simple structure can make things convenient for the pencil wiring, and can reduce the installation space on the water-cooling board.

Description

Wiring board for IGBT wiring

Technical Field

The utility model relates to a power technical field especially relates to a wiring board is used in IGBT wiring.

Background

An IGBT (Insulated Gate Bipolar Transistor) is a core device for energy conversion and transmission, and the structure of the IGBT is as shown in fig. 1, and includes a housing 01, a substrate 02 disposed at the bottom of the housing 01, a main terminal 03 and a control terminal 04 disposed at the top of the housing 01, the main terminal 03 including a plurality of emitters and a plurality of collectors, the control terminal 04 including a plurality of drivers, and the size of the control terminal 04 being smaller than that of the main terminal 03. The number of electrodes is determined as necessary, and for example, three emitters, three collectors, and three drivers are provided in the IGBT shown in fig. 1. The main terminal 03 and the control terminal 04 are both L-shaped plate structures, one surface of each L-shaped plate is parallel to the top surface of the housing 01 and has a certain gap, and the other surface of each L-shaped plate is perpendicular to the top surface of the housing 01 and is connected with an electrode of a chip inside the housing 01. In use, as shown in fig. 2, generally, the IGBT is mounted on a water-cooling plate 05 of the water-cooling heat sink, a busbar (i.e., a copper bar) is mounted above the IGBT, each main terminal can directly contact with the busbar, and each control terminal 04 is connected to the drive plate through a wire harness.

In the use process of a high-voltage high-power IGBT in the railway locomotive, automobile and power grid industries, the electrical isolation problem is generally considered, a drive plate and the IGBT are arranged at different positions, and a wire harness connecting the IGBT and the drive plate cannot contact a busbar above the drive plate or a water cooling plate 05 below the drive plate during wiring. In the prior art, a wire frame 06 is generally installed on a radiator for a wiring structure of a wire harness between an IGBT and a drive board, and the wire harness is erected by using the wire frame 06 for wiring, as shown in fig. 2. However, this structure occupies a large installation space of the water-cooling plate 05.

Therefore, the inventor provides the wiring board for IGBT wiring by virtue of experience and practice of related industries for many years so as to overcome the defects in the prior art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wiring board for IGBT wiring, simple structure can make things convenient for the pencil wiring, and can reduce the installation space on the water-cooling board.

The utility model aims at realizing the wiring board for IGBT wiring, which comprises a wiring board body; spaced apart on the wiring board body and be equipped with first through-hole and second through-hole, wiring board body can be fixed on IGBT's main terminal or control terminal through first through-hole or second through-hole, can wear to establish the ribbon that is used for the wiring in first through-hole or second through-hole.

The utility model discloses an in a preferred embodiment, seted up at least one third through-hole between first through-hole and second through-hole, can wear to establish the ribbon that is used for the ligature in the third through-hole.

The utility model discloses an in a preferred embodiment, the wiring plate body is rectangular form plate body, and first through-hole, third through-hole and second through-hole are arranged along the length direction interval of wiring plate body.

The utility model discloses an among the preferred embodiment, first through-hole is the quad slit, and the length direction of the length direction perpendicular to of quad slit ties up the length direction of line plate body, and the quad slit can be established on IGBT's main terminal.

The utility model discloses an in a preferred embodiment, second through-hole and third through-hole are the circular port, and the shape of second through-hole and the screw hole phase-match on the main terminal of IGBT.

In a preferred embodiment of the present invention, the binding-wire plate comprises a first rectangular plate, a second rectangular plate and a first semicircular plate connected in sequence along the length direction thereof, wherein the width of the first rectangular plate is larger than that of the second rectangular plate; the first through hole is formed in the first rectangular plate body, the third through hole is formed in the second rectangular plate body, and the second through hole is close to the first semicircular plate body.

In a preferred embodiment of the present invention, a chamfer is formed at a junction between the first rectangular plate and the second rectangular plate.

The utility model discloses an in a preferred embodiment, first through-hole, second through-hole and third through-hole are the circular port, the screw hole phase-match on the shape of first through-hole or third through-hole and IGBT's the control terminal.

The utility model discloses an in a preferred embodiment, the wiring plate body includes third rectangular plate body and two semi-circular plate bodies of second of symmetric connection at third rectangular plate body both ends, and the third through-hole is seted up on third rectangular plate body, and first through-hole and second through-hole are close to two semi-circular plate body settings of second respectively.

In a preferred embodiment of the present invention, the binding plate is made of an insulating material.

From above, the utility model provides a binding wire board for IGBT wiring, cooperation through each through-hole, can fix binding wire plate body 1 on IGBT's main terminal or control terminal, simultaneously through wear to establish the ribbon alright in corresponding through-hole with the realization to the binding wire effect of pencil, need not special installation line frame on the radiator, also need not to leave the installation space of other wiring spare part (for example line frame) on the water-cooling board of whole radiator, consequently, can reduce the distance between two or a plurality of IGBT, also the IGBT of the same quantity can adopt littleer water-cooling board, the installation space on the water-cooling board has been saved greatly. The whole wire binding plate has simple structure, simple and convenient installation and low cost.

Drawings

The drawings are only intended to illustrate and explain the present invention and do not limit the scope of the invention. Wherein:

FIG. 1: the structure of the IGBT is shown schematically.

FIG. 2: the structure schematic diagram of the IGBT and the wire frame arranged on the water cooling plate in the prior art is shown.

FIG. 3: for the utility model provides a structural schematic of the first form of wiring board for IGBT wiring.

FIG. 4: for the utility model provides a structural schematic of second form of wiring board for IGBT wiring.

FIG. 5: for the utility model provides an installation IGBT wiring on IGBT with the schematic structure behind the wiring board.

The reference numbers illustrate:

01. a housing; 02. a substrate; 03. a main terminal; 04. a control terminal; 05. a water-cooling plate; 06. a wire frame;

1. binding the wire plate body; 11. a first rectangular plate body; 12. a second rectangular plate body; 13. a first semi-circular plate body; 14. a third rectangular plate body; 15. a second semicircular plate body;

2. a first through hole;

3. a second through hole;

4. a third via.

Detailed Description

In order to clearly understand the technical features, objects, and effects of the present invention, embodiments of the present invention will be described with reference to the accompanying drawings.

As shown in fig. 3 to 5, the present embodiment provides a binding-wire board for IGBT wiring, including a binding-wire board body 1, a first through hole 2 and a second through hole 3 are provided on the binding-wire board body 1 at intervals, the binding-wire board body 1 can be fixed on a main terminal 03 or a control terminal 04 of an IGBT through the first through hole 2 or the second through hole 3, and a tie for binding-wire can be inserted into the first through hole 2 or the second through hole 3.

When using, fix wiring plate body 1 on IGBT's main terminal 03 or control terminal 04 through one of them through-hole in first through-hole 2 and the second through-hole 3, wear to establish the ribbon alright conveniently carry out wiring to the pencil in another through-hole when wiring to the pencil between IGBT and the drive plate, be prior art to the structure of ribbon, no longer describe herein.

From this, wiring board for IGBT wiring in this embodiment, cooperation through each through-hole, can fix wiring board body 1 on IGBT's main terminal 03 or control terminal 04, simultaneously through wear to establish the ribbon alright in corresponding through-hole and realize the wiring effect to the pencil, need not to install line frame 06 (as shown in fig. 2) specially on the radiator, also need not to leave the installation space of other wiring spare part (for example line frame 06) on the water-cooling plate 05 of whole radiator, consequently, can reduce the distance between two or a plurality of IGBT, also the IGBT of the same quantity can adopt littleer water-cooling plate 05, the installation space on the water-cooling plate 05 has been saved greatly. The whole wire binding plate has simple structure, simple and convenient installation and low cost.

In a specific implementation mode, at least one third through hole 4 is formed between the first through hole 2 and the second through hole 3, and a binding belt for binding wires can be arranged in the third through hole 4 in a penetrating manner. The number of the specific third through holes 4 can be determined according to the number of the binding wires required, so that the binding wires can be conveniently carried out on a plurality of wire harnesses. The general binding wire plate body 1 is preferably a strip-shaped plate body, and the first through hole 2, the third through hole 4 and the second through hole 3 are arranged at intervals along the length direction of the binding wire plate body 1.

In practical applications, since the size of each of the main terminals 03 is larger than that of the control terminal 04, and the mounting orientations of the main terminals 03 and the control terminal 04 are different, the wiring binding plates in the embodiment have two forms for being mounted on the main terminals 03 and the control terminal 04, respectively, in order to better match with the main terminals 03 and the control terminal 04. The method comprises the following specific steps:

the wiring binding plate of the first form is mainly used for mounting on the main terminal 03, that is, on the emitter or collector of the IGBT, as shown in fig. 3.

To the wiring board of first form, for the convenience of wiring board body 1 fixes with IGBT's main terminal 03, as shown in fig. 3, first through-hole 2 is the quad slit, and the length direction of quad slit perpendicular to wiring board body 1's length direction, and the quad slit can overlap and establish on IGBT's main terminal 03. As shown in fig. 5, when in use, the square hole of the binding-wire plate body 1 is directly sleeved on the main terminal 03, so that the fixation of the binding-wire plate body 1 can be realized, the contact between the main terminal 03 and the busbar above the main terminal 03 is not affected, and the binding-wire plate body is simple and convenient.

Because main terminal 03 on two adjacent IGBTs, the orientation of its L shape plate body structure is probably opposite, consequently, in order to adapt to the orientation of different main terminal 03 for the installation of wiring plate body 1 is more nimble, and with more convenient wiring, as shown in FIG. 3, second through-hole 3 and third through-hole 4 are the circular port, and the shape of second through-hole 3 and the screw hole phase-match on the main terminal 03 of IGBT.

In this way, for different orientations of the main terminal 03, as shown in fig. 5, the square hole of the binding-wire plate body 1 can be selectively sleeved on the main terminal 03 for fixing. The binding wire plate body 1 can be inserted below the main terminal 03 (namely, inserted into a gap between the L-shaped plate body structure of the main terminal 03 and the shell 01), the second through hole 3 corresponds to the threaded hole in the main terminal 03, and then the binding wire plate body 1 can be fixed by inserting bolts into the threaded hole and the second through hole 3; in addition, since the binding-wire plate 1 is mounted below the main terminal 03, the main terminal 03 does not contact the busbar above the main terminal.

For example, taking the example shown in fig. 3 that two third through holes 4 are provided, if the first through hole 2 is used to fix the binding-wire plate body 1, the remaining three through holes (i.e. the second through hole 3 and the two third through holes 4) can be used to pass through the rolled strip for binding-wire; if the second through hole 3 is used to fix the binding-wire plate body 1, the other three through holes (i.e. the first through hole 2 and the two third through holes 4) can be used to penetrate the rolled strip for binding-wire.

For convenience of processing and installation, as shown in fig. 3, the binding-wire plate 1 includes a first rectangular plate 11, a second rectangular plate 12 and a first semicircular plate 13 connected in sequence along a length direction thereof, and the first rectangular plate 11 has a width larger than that of the second rectangular plate 12. The first through hole 2 is arranged on the first rectangular plate body 11, the third through hole 4 is arranged on the second rectangular plate body 12, and the second through hole 3 is arranged close to the first semicircular plate body 13. A chamfer is generally formed at the junction of the first rectangular plate body 11 and the second rectangular plate body 12.

The wiring binding plate of the second form is mainly used for mounting on the control terminal 04, that is, on the driving pole of the IGBT as shown in fig. 4.

For the wiring board of the second form, the first through hole 2, the second through hole 3 and the third through hole 4 are all circular holes, and the shape of the first through hole 2 or the third through hole 4 is matched with a threaded hole on the control terminal 04 of the IGBT.

During the use, as shown in fig. 5, insert the wiring board and establish the below of control terminal 04 (plug-and-play establishes in the clearance between the L-shaped plate body structure of control terminal 04 and casing 01), correspond first through-hole 2 or second through-hole 3 and the screw hole on the control terminal 04, the wire terminal is put in the top of control terminal 04, then adopt the bolt alright with fastening wiring board body 1, the realization when the electrode wiring alright with the purpose of fixed wiring board simultaneously. In addition, since the binding-wire plate 1 is mounted below the control terminal 04 at this time, the control terminal 04 does not contact with the busbar above the control terminal 04.

For convenience of processing and installation, as shown in fig. 4, the binding-wire plate 1 includes a third rectangular plate 14 and two second semicircular plates 15 symmetrically connected to two ends of the third rectangular plate 14, a third through hole 4 is formed in the third rectangular plate 14, and the first through hole 2 and the second through hole 3 are respectively disposed near the two second semicircular plates 15.

Further, for the two types of binding-wire plates, the material of the binding-wire plate body 1 is an insulating material, and for example, a material such as PET plastic (Polyethylene terephthalate) or SMC composite (Sheet molding compound) is used.

In addition, during actual installation, the wiring board binding body of the first form is installed on which main terminal 03 and the wiring board binding body is installed at the position where the main terminals 03 are shared, and the wiring board binding body of the second form is installed on which control terminal 04 and the wiring board binding body is installed at the position where the control terminals 04 are shared, which are determined according to actual wiring requirements, so long as the wiring is convenient.

The above are merely exemplary embodiments of the present invention, and are not intended to limit the scope of the present invention. Any person skilled in the art should also realize that such equivalent changes and modifications can be made without departing from the spirit and principles of the present invention.

Claims

1. A wiring board for IGBT wiring is characterized by comprising a wiring board body;

the binding wire plate body is provided with a first through hole and a second through hole at intervals, the binding wire plate body can be fixed on a main terminal or a control terminal of the IGBT through the first through hole or the second through hole, and a binding belt for binding wires can penetrate through the first through hole or the second through hole.

2. The wiring binding plate for IGBT according to claim 1,

at least one third through hole is formed between the first through hole and the second through hole, and a binding belt for binding wires can be arranged in the third through hole in a penetrating mode.

3. The wiring binding plate for IGBT according to claim 2,

the binding wire plate body is a strip-shaped plate body, and the first through hole, the third through hole and the second through hole are arranged at intervals along the length direction of the binding wire plate body.

4. The wiring binding plate for IGBT according to claim 3,

the first through hole is a square hole, the length direction of the square hole is perpendicular to the length direction of the binding wire plate body, and the square hole can be sleeved on the main terminal of the IGBT.

5. The wiring binding plate for IGBT according to claim 4,

the second through hole and the third through hole are circular holes, and the shape of the second through hole is matched with the threaded hole in the main terminal of the IGBT.

6. The wiring binding plate for IGBT according to claim 5,

the binding line plate body comprises a first rectangular plate body, a second rectangular plate body and a first semicircular plate body which are sequentially connected along the length direction of the binding line plate body, and the width of the first rectangular plate body is larger than that of the second rectangular plate body;

the first through hole is formed in the first rectangular plate body, the third through hole is formed in the second rectangular plate body, and the second through hole is close to the first semicircular plate body.

7. The wiring binding plate for IGBT according to claim 6,

and a chamfer is formed at the joint of the first rectangular plate body and the second rectangular plate body.

8. The wiring binding plate for IGBT according to claim 3,

the first through hole, the second through hole and the third through hole are circular holes, and the shape of the first through hole or the third through hole is matched with a threaded hole in a control terminal of the IGBT.

9. The wiring binding plate for IGBT according to claim 8,

the binding wire plate body comprises a third rectangular plate body and two second semicircular plate bodies symmetrically connected to two ends of the third rectangular plate body, a third through hole is formed in the third rectangular plate body, and the first through hole and the second through hole are close to the two second semicircular plate bodies respectively.

10. The wiring binding plate for IGBT according to claim 1,

the binding wire plate body is made of an insulating material.