CN218274576U

CN218274576U - Surface mount rectifier bridge

Info

Publication number: CN218274576U
Application number: CN202222373794.9U
Authority: CN
Inventors: 范雯雯; 张壮; 朱秀珍; 朱云杰; 吕卓晋
Original assignee: Zhejiang Guchi Electronics Co ltd
Current assignee: Zhejiang Guchi Electronics Co ltd
Priority date: 2022-09-06
Filing date: 2022-09-06
Publication date: 2023-01-10
Anticipated expiration: 2032-09-06

Abstract

The utility model discloses the problem that heat dispersion to SMD rectifier bridge can further improve among the prior art has proposed a SMD rectifier bridge, belongs to semiconductor rectification technical field, including shell and insulation board, the shell is the loop configuration, and the shell encircles the insulation board, the insulation board center is equipped with the installation through-hole, installs the center post on the through-hole, is equipped with the semi-manufactured goods rectifier bridge around the center post on the insulation board, is equipped with many SMD conductive pin on the semi-manufactured goods rectifier bridge. The utility model discloses except coming for rectifier bridge heat dissipation through insulation board and electrically conductive pin, still increased hollow center post in rectifier bridge's centre and increased rectifier bridge's heat radiating area, and the center post is located rectifier bridge's center, and the distance apart from the biggest rectifier chip of calorific capacity is also near, can be fine give off calorific capacity guide and distribute to the air on every side, the center post can also install fixed rectifier bridge and use.

Description

Surface mount rectifier bridge

Technical Field

The utility model belongs to the technical field of the semiconductor rectification, concretely relates to SMD rectifier bridge.

Background

Rectifier bridge plays not little effect in the rapid development of electronics industry, and many equipment make inner space more and more littleer for the miniaturization now to SMD rectifier bridge has appeared, SMD rectifier bridge is littleer compared in traditional rectifier bridge volume, and the installation space requirement is also littleer, and novel like the use of patent number CN202020903569.X, has disclosed a high heat dissipating's paster rectifier bridge, and it includes the body, be equipped with rectifier bridge and many electrically conductive pins on the body, the vertical cross-section of electrically conductive pin is the Z form, the upper end of electrically conductive pin stretches into in the body to with rectifier bridge electric connection, electrically conductive pin is the upper end thin, the lower extreme is thick form.

The heat generation of the rectifier bridge is mainly concentrated on the rectifier chip, the heat dissipation efficiency is not enough to be improved by the conductive pins, and the integral heat dissipation performance of the rectifier bridge needs to be improved conveniently.

Disclosure of Invention

The utility model discloses the problem that the heat dispersion to SMD rectifier bridge can further improve among the prior art has provided a SMD rectifier bridge.

The invention aims to be realized by the following technical scheme: the utility model provides a SMD rectifier bridge, includes shell and insulation board, the shell is the loop configuration, and the shell encircles the insulation board, the insulation board center is equipped with the installation through-hole, installs the center post on the installation through-hole, is equipped with the semi-manufactured goods rectifier bridge around the center post on the insulation board, is equipped with many SMD conductive pin on the semi-manufactured goods rectifier bridge.

In the above scheme, the utility model discloses except coming for the rectifier bridge heat dissipation through insulation board and conductive pin, still increased the heat radiating area that hollow center post increased the rectifier bridge in the centre of rectifier bridge, and the center post is located the center of rectifier bridge, and the distance apart from giving out calorific capacity the biggest rectifier chip is also near, can be fine give out calorific capacity guide and give off the surrounding air, the center post can also install fixed rectifier bridge and use.

Preferably, the conductive pins are divided into an alternating current input pin and a direct current output pin, the positive direct current output pin is provided with a positive pole identifier, and the negative direct current output pin is provided with a negative pole identifier. The function of each conductive pin is convenient for users to partition.

Preferably, the housing is in a square ring shape, and four corners of the housing are chamfered, wherein the chamfer angle of the outer corner of the housing near the positive electrode direct current output pin is larger than the outer corners of the rest housings. The user can conveniently and quickly find the positive direct current output pin.

Preferably, four inner corners of the shell are provided with guide ribs protruding towards the center of the shell. The four guide ribs play a role in positioning the semi-finished rectifier bridge, and the semi-finished rectifier bridge is installed in an installation space surrounded by the four guide ribs.

Preferably, the conductive pins are multi-section pins bent continuously, the head ends and the tail ends of the pins are parallel to each other, and one end of each pin is fixedly connected with the semi-finished rectifier bridge.

Preferably, the conductive pin comprises a first section, a second section and a third section which are bent into a ladder shape, the first section, the second section and the third section are parallel to each other, and the first section is fixedly connected with the semi-finished rectifier bridge.

Preferably, the shell is provided with a groove with the same width as the conductive pin, the second section is attached to the groove, and the length of the second section is slightly larger than the sum of the thickness of the shell and the thickness of the guide rib. The second section is attached to the groove, so that the length of the conductive pin outside the shell is more end-to-end, and the installation space of the rectifier bridge is reduced.

Preferably, the center post comprises a first hollow post body and a second hollow post body, the first post body and the second post body are coaxially arranged, the diameters of inner holes of the first post body and the second post body are the same, the outer diameter of the first post body is smaller than that of the second post body, and the first post body is installed into the installation through hole and is in interference fit with the installation through hole.

Compared with the prior art, the utility model discloses following beneficial effect has: the utility model discloses except coming for rectifier bridge heat dissipation through insulation board and electrically conductive pin, still increased hollow center post in rectifier bridge's centre and increased rectifier bridge's heat radiating area, and the center post is located rectifier bridge's center, and the distance apart from the biggest rectifier chip of calorific capacity is also near, can be fine give off calorific capacity guide and distribute to the air on every side, the center post can also install fixed rectifier bridge and use.

Drawings

Fig. 1 is a schematic structural diagram 1 of the present invention;

fig. 2 is a schematic structural diagram 2 of the present invention;

FIG. 3 is an exploded view of the present invention;

FIG. 4 is a schematic structural view of the central column;

FIG. 5 is a schematic structural diagram of a conductive pin;

fig. 6 is an electrical schematic diagram of a semi-finished rectifier bridge.

The mark in the figure is: 1. A housing; 2. an insulating plate; 3. mounting a through hole; 4. a semi-finished rectifier bridge; 5. A conductive pin; 51. a positive DC output pin; 52. a negative dc output pin; 6. a central column; 61. a first column; 62. a second cylinder; 7. a guide rib; 8. a groove; 9. a first stage; 10. a second stage; 11. and a third stage.

Detailed Description

The invention will be further described with reference to the embodiments shown in the drawings to which:

as shown in fig. 1 to fig. 6, a patch rectifier bridge comprises a housing 1 and an insulating plate 2, and the utility model discloses in adopt aluminium base insulating plate. The shell 1 is of a square annular structure, and four corners of the shell 1 are chamfered. The shell 1 encircles insulation board 2, insulation board 2 center is equipped with installation through-hole 3, installs center post 6 on the installation through-hole 3, and center post 6 includes inside hollow first cylinder 61 and second cylinder 62, and first cylinder 61 and the coaxial setting of second cylinder 62, the hole diameter of first cylinder 61 and second cylinder 62 is the same, and the external diameter of first cylinder 61 is less than the external diameter of second cylinder 62, and installation through-hole 3 and the 3 interference fit of installation through-hole are installed into to first cylinder 61. Be equipped with on the insulation board 2 around the semi-manufactured goods rectifier bridge 4 of center post 6, four internal corners departments of shell 1 all are equipped with to the protruding direction muscle 7 in shell 1 center, and four direction muscle 7 play the effect of fixing a position semi-manufactured goods rectifier bridge 4, and semi-manufactured goods rectifier bridge 4 installs in the installation space that four direction muscle 7 enclose. And a plurality of patch type conductive pins 5 are arranged on the semi-finished product rectifier bridge 4.

The conductive pin 5 is divided into an ac input pin and a dc output pin, and the positive dc output pin 51 is provided with a positive mark, and the negative dc output pin 52 is provided with a negative mark. The user is facilitated to partition the function of each conductive pin 5. Wherein the outer corner chamfer of the housing 1 near the positive dc output pin 51 is larger than the outer corners of the remaining housing 1. The user can conveniently and quickly find the positive direct current output pin 51.

Conductive pin 5 is the multistage formula pin of bending in succession, and the head and the tail both ends of pin are parallel to each other, and one end and the semi-manufactured goods rectifier bridge 4 fixed connection of pin. The utility model provides a conductive pin 5 is including bending into first section 9, second section 10 and the third section 11 of echelonment, and first section 9, second section 10 and third section 11 are parallel to each other,

first section

9 and 4 fixed connection of semi-manufactured goods rectifier bridge.

The shell 1 is also provided with a groove 8 with the same width as the conductive pin 5, a second section 10 is attached to the groove 8, and the length of the second section 10 is slightly larger than the sum of the thickness of the shell 1 and the thickness of the guide rib 7. The second section 10 abutting on the groove 8 can make the length of the conductive pin 5 outside the shell 1 more end, and reduce the installation space of the rectifier bridge.

The utility model discloses except coming for the rectifier bridge heat dissipation through insulation board 2 and conductive pin 5, still increased hollow center post 6 in the centre of rectifier bridge and increased the heat radiating area of rectifier bridge, and center post 6 is located the center of rectifier bridge, and the distance apart from the biggest rectifier chip that gives out heat is also near, can be fine give out heat guiding and give off surrounding air, center post 6 can also install fixed rectifier bridge and use.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions may be made by those skilled in the art to the specific embodiments described without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Claims

1. The utility model provides a SMD rectifier bridge, includes shell (1) and insulation board (2), its characterized in that, shell (1) is the loop configuration, and insulation board (2) are encircleed in shell (1), insulation board (2) center is equipped with installation through-hole (3), installs center post (6) on installation through-hole (3), is equipped with on insulation board (2) around semi-manufactured goods rectifier bridge (4) of center post (6), is equipped with many SMD conductive pin (5) on semi-manufactured goods rectifier bridge (4).

2. The patch type rectifier bridge according to claim 1, wherein the conductive pin (5) is divided into an ac input pin and a dc output pin, the positive dc output pin (51) is provided with a positive mark, and the negative dc output pin (52) is provided with a negative mark.

3. The patch type rectifier bridge according to claim 2, wherein the housing (1) is square ring-shaped, and four corners of the housing (1) are chamfered, wherein the chamfer angle of the outer corner of the housing (1) near the positive electrode direct current output pin (51) is larger than the chamfer angle of the rest of the housings (1).

4. The patch type rectifier bridge according to claim 3, wherein the four inner corners of the housing (1) are provided with guide ribs (7) protruding towards the center of the housing (1).

5. The patch type rectifier bridge according to claim 1, wherein the conductive pins (5) are continuously bent multi-segment pins, the ends of the conductive pins are parallel to each other, and one end of each conductive pin is fixedly connected with the semi-finished rectifier bridge (4).

6. The patch type rectifier bridge according to claim 5, wherein the conductive pin (5) comprises a first section (9), a second section (10) and a third section (11) which are bent into a step shape, the first section (9), the second section (10) and the third section (11) are parallel to each other, and the first section (9) is fixedly connected with the semi-finished rectifier bridge (4).

7. The patch type rectifier bridge according to claim 6, wherein the housing (1) is provided with a groove (8) having the same width as the conductive pin (5), the second section (10) abuts against the groove (8), and the length of the second section (10) is slightly greater than the sum of the thickness of the housing (1) and the thickness of the guide rib (7).

8. The patch type rectifier bridge according to claim 1, wherein the central column (6) comprises a first column body (61) and a second column body (62) which are hollow inside, the first column body (61) and the second column body (62) are coaxially arranged, the inner hole diameters of the first column body (61) and the second column body (62) are the same, the outer diameter of the first column body (61) is smaller than that of the second column body (62), and the first column body (61) is installed in the installation through hole (3) and is in interference fit with the installation through hole (3).