CN214281249U

CN214281249U - High-heat-conductivity bonding wire packaged bridge rectifier

Info

Publication number: CN214281249U
Application number: CN202120591599.6U
Authority: CN
Inventors: 朱江杰
Original assignee: Changzhou Langjie Electronic Co ltd
Current assignee: Changzhou Langjie Electronic Co ltd
Priority date: 2021-03-23
Filing date: 2021-03-23
Publication date: 2021-09-24
Anticipated expiration: 2031-03-23

Abstract

The utility model discloses a high heat conduction bonding wire encapsulation bridge rectifier, which comprises an outer shell, the bottom of shell is provided with the base, one side that the shell was kept away from to the base is provided with the connection feeler, the top of shell is provided with the heat conduction fin, the front of shell is provided with the thermovent, one side that the shell is inside to be close to the thermovent is provided with the water conservancy diversion wall, the inside of base is provided with the louvre, the top of base is provided with first rectifier tube, one side that first rectifier tube was kept away from at the top of base is provided with the second rectifier tube, one side that the second rectifier tube was kept away from at the top of base is provided with the third rectifier tube, one side that the third rectifier tube was kept away from at the top of base is provided with the fourth rectifier tube, the top of base is provided with the connection piece. According to the high-thermal-conductivity bonding wire packaging bridge rectifier, the thermal-conductivity fins are arranged, so that the thermal-conductivity fins with triangular cross sections can be used for increasing the heat dissipation area by one time, and the purpose of rapid and convenient heat conduction is achieved.

Description

High-heat-conductivity bonding wire packaged bridge rectifier

Technical Field

The utility model relates to a high heat conduction bonding wire encapsulation bridge rectifier technical field specifically is a high heat conduction bonding wire encapsulation bridge rectifier.

Background

The bridge rectifier is formed by bridge connection of four rectifier silicon chips and external encapsulation of insulating plastics, and a zinc metal shell is added outside the insulating layer of the high-power bridge rectifier for encapsulation. The bridge rectifier has multiple varieties: including flat, round, square, bench-shaped, etc., and having GPP and O/J structures. The maximum rectified current is from 0.5A to 100A, and the highest reverse peak voltage is from 50V to 1600V. The half-bridge is formed by sealing two diode bridge rectifier halves together, and a bridge rectifier circuit can be formed by using the two half-bridges, and a full-wave rectifier circuit with a center tap of a transformer can also be formed by using one half-bridge. The rectifier bridge is selected taking into account the rectifier circuit and the operating voltage. Bridge rectifier stacks are commonly used in full-wave rectifier circuits, which are divided into full-bridge and half-bridge.

The prior art has the following defects or problems:

1. in the prior art, the adopted heat conducting module has larger volume, so that the height of the bridge rectifier is greatly increased, and the problem of inconvenient installation is caused;

2. in the prior art, a single outward heat conduction mode is adopted for heat dissipation, so that the requirement on materials is high, and the manufacturing cost is increased.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to prior art's weak point, provide a high heat conduction bonding wire encapsulation bridge rectifier to the heat conduction module volume that proposes in the solution background is big, single radiating mode problem.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a high heat conduction bonding wire encapsulation bridge rectifier, includes the shell, the bottom of shell is provided with the base, one side that the shell was kept away from to the base is provided with the connection antenna, the top of shell is provided with the heat conduction fin, the front of shell is provided with the thermovent, one side that the shell is inside to be close to the thermovent is provided with the water conservancy diversion wall, the inside of base is provided with the louvre, the top of base is provided with first rectifier tube, one side that first rectifier tube was kept away from at the top of base is provided with the second rectifier tube, one side that the second rectifier tube was kept away from at the top of base is provided with the third rectifier tube, one side that the third rectifier tube was kept away from at the top of base is provided with the fourth rectifier tube, the top of base is provided with the connection piece.

As the utility model discloses an optimal technical scheme, the shell passes through welding and base fixed connection, it is provided with four to connect the antenna, it passes through welding and connection piece fixed connection to connect the antenna.

As the utility model discloses a preferred technical scheme, heat conduction fin is through casting and shell fixed connection, heat conduction fin adopts the brass preparation.

As the utility model discloses an optimal technical scheme, the thermovent is provided with two, the thermovent is through casting and water conservancy diversion wall fixed connection, the inner wall of louvre is provided with the insulating piece.

As the utility model discloses a preferred technical scheme, the rectifier tube is provided with positive negative pole, be provided with the connection piece between first rectifier tube is anodal and the third rectifier tube is anodal, anodal and the anodal connection piece fixed connection that passes through of third rectifier tube, be provided with the connection piece between first rectifier tube negative pole and the second rectifier tube is anodal, first rectifier tube negative pole passes through connection piece and the anodal fixed connection of second rectifier tube.

As the utility model discloses a preferred technical scheme, be provided with the connection piece between second rectifier tube negative pole and the fourth rectifier tube negative pole, the second rectifier tube negative pole passes through connection piece and fourth rectifier tube negative pole fixed connection.

As the utility model discloses a preferred technical scheme, be provided with the connection piece between the anodal and third rectifier tube negative pole of fourth rectifier tube, the anodal connection piece and the third rectifier tube negative pole fixed connection of passing through of fourth rectifier tube.

Compared with the prior art, the utility model provides a high heat conduction bonding wire encapsulation bridge rectifier possesses following beneficial effect:

1. according to the high-thermal-conductivity bonding wire packaging bridge rectifier, the heat-conducting fins are arranged, so that the heat-radiating area can be doubled through the heat-conducting fins with triangular cross sections, and the installation requirement is lowered because the larger height cannot be increased;

2. this high heat conduction bonding wire encapsulation bridge rectifier through setting up the water conservancy diversion wall, will follow the air direction louvre that the thermovent got into through the water conservancy diversion wall for take away the outside heat of rectifier tube, can not make the inside high temperature of shell cause the puncture, reduced the requirement of preparation material, practiced thrift the cost of manufacture.

Drawings

FIG. 1 is a schematic view of the main structure of the present invention;

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

FIG. 3 is a schematic view of the internal structure of the main body of the present invention;

FIG. 4 is a schematic structural view of the heat-conducting fin of the present invention;

fig. 5 is a schematic view of the cross-sectional structure of the flow guide wall of the present invention.

In the figure: 1. a housing; 2. a base; 3. connecting an antenna; 4. a heat-conducting fin; 5. a heat dissipation port; 6. a flow guide wall; 7. heat dissipation holes; 8. a first rectifying tube; 9. a second rectifying tube; 10. a third rectifying tube; 11. a fourth rectifying tube; 12. and (7) connecting the sheets.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-5, in this embodiment: including shell 1, the bottom of shell 1 is provided with base 2, one side that shell 1 was kept away from to base 2 is provided with connects antenna 3, the top of shell 1 is provided with heat conduction fin 4, the front of shell 1 is provided with thermovent 5, one side that shell 1 is inside to be close to thermovent 5 is provided with water conservancy diversion wall 6, the inside of base 2 is provided with louvre 7, the top of base 2 is provided with first rectifier tube 8, one side that first rectifier tube 8 was kept away from at the top of base 2 is provided with second rectifier tube 9, one side that second rectifier tube 9 was kept away from at the top of base 2 is provided with third rectifier tube 10, one side that third rectifier tube 10 was kept away from at the top of base 2 is provided with fourth rectifier tube 11, the top of base 2 is provided with connection piece 12.

In the embodiment, the shell 1 is fixedly connected with the base 2 through welding, four connecting antennae 3 are arranged, and the connecting antennae 3 are fixedly connected with the connecting sheet 12 through welding, so that the connection is stable and the structure is simple; the heat-conducting fins 4 are fixedly connected with the shell 1 through casting, the heat-conducting fins 4 are made of brass, the heat-conducting fins 4 with triangular cross sections are beneficial to doubling the heat-radiating area, and the larger height cannot be increased, so that the installation requirement is reduced; the two radiating ports 5 are arranged, the radiating ports 5 are fixedly connected with the flow guide wall 6 through casting, and the inner wall of each radiating hole 7 is provided with an insulating sheet, so that air entering from the radiating ports 5 is guided to the corresponding radiating hole 7 through the flow guide wall 6, heat outside the rectifying tube is taken away, the internal temperature of the shell 1 is not too high, the requirement of manufacturing materials is lowered, and the manufacturing cost is saved; the rectifier tube is provided with an anode and a cathode, a connecting piece 12 is arranged between the anode of the first rectifier tube 8 and the anode of the third rectifier tube 10, the anode of the first rectifier tube 8 is fixedly connected with the anode of the third rectifier tube 10 through the connecting piece 12, a connecting piece 12 is arranged between the cathode of the first rectifier tube 8 and the anode of the second rectifier tube 9, and the cathode of the first rectifier tube 8 is fixedly connected with the anode of the second rectifier tube 9 through the connecting piece 12, so that a passage is formed; a connecting piece 12 is arranged between the negative electrode of the second rectifying tube 9 and the negative electrode of the fourth rectifying tube 11, and the negative electrode of the second rectifying tube 9 is fixedly connected with the negative electrode of the fourth rectifying tube 11 through the connecting piece 12; a connecting piece 12 is arranged between the positive pole of the fourth rectifying tube 11 and the negative pole of the third rectifying tube 10, and the positive pole of the fourth rectifying tube 11 is fixedly connected with the negative pole of the third rectifying tube 10 through the connecting piece 12, so that a full-bridge circuit is favorably formed, and the rectifying work is carried out.

The utility model discloses a theory of operation and use flow: when the rectifier is used, the four connecting antennae 3 are connected to the main board through tin soldering, and after the power is switched on, current flows through the connecting antennae 3 to be connected with the four connecting pieces 12, so that the first rectifying tube 8, the second rectifying tube 9, the third rectifying tube 10 and the fourth rectifying tube 11 are communicated to form a full-bridge rectifying circuit. The heat that work produced is through leading heat conduction fin 4 through shell 1 for carry out outside heat dissipation, inside the air got into shell 1 through thermovent 5, through guiding wall 6 with the air guide through four rectifier tubes, dispel the heat through louvre 7.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described in the foregoing embodiments, or equivalents may be substituted for elements thereof. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A high heat conduction wire bond package bridge rectifier is characterized in that: comprises a shell (1), a base (2) is arranged at the bottom of the shell (1), a connecting antenna (3) is arranged on one side, away from the shell (1), of the base (2), a heat conducting fin (4) is arranged at the top of the shell (1), a heat radiating port (5) is arranged on the front face of the shell (1), a flow guide wall (6) is arranged on one side, close to the heat radiating port (5), inside the shell (1), a heat radiating hole (7) is arranged inside the base (2), a first rectifying tube (8) is arranged at the top of the base (2), a second rectifying tube (9) is arranged on one side, away from the first rectifying tube (8), of the top of the base (2), a third rectifying tube (10) is arranged on one side, away from the second rectifying tube (9), of the top of the base (2), and a fourth rectifying tube (11) is arranged on one side, away from the third rectifying tube (10), of the top of the base (2), the top of the base (2) is provided with a connecting sheet (12).

2. The high thermal conductivity wire bond package bridge rectifier of claim 1, wherein: the shell (1) is fixedly connected with the base (2) through welding, four connecting antennae (3) are arranged, and the connecting antennae (3) are fixedly connected with the connecting sheet (12) through welding.

3. The high thermal conductivity wire bond package bridge rectifier of claim 1, wherein: the heat conduction fin (4) is fixedly connected with the shell (1) through casting, and the heat conduction fin (4) is made of brass.

4. The high thermal conductivity wire bond package bridge rectifier of claim 1, wherein: the heat dissipation holes (5) are two in number, the heat dissipation holes (5) are fixedly connected with the flow guide wall (6) through casting, and insulating sheets are arranged on the inner walls of the heat dissipation holes (7).

5. The high thermal conductivity wire bond package bridge rectifier of claim 1, wherein: the rectifier tube is provided with positive negative pole, be provided with connection piece (12) between first rectifier tube (8) positive pole and third rectifier tube (10) positive pole, first rectifier tube (8) positive pole and third rectifier tube (10) positive pole pass through connection piece (12) fixed connection, be provided with connection piece (12) between first rectifier tube (8) negative pole and second rectifier tube (9) positive pole, first rectifier tube (8) negative pole passes through connection piece (12) and the anodal fixed connection of second rectifier tube (9).

6. The high thermal conductivity wire bond package bridge rectifier of claim 1, wherein: a connecting piece (12) is arranged between the negative pole of the second rectifying tube (9) and the negative pole of the fourth rectifying tube (11), and the negative pole of the second rectifying tube (9) is fixedly connected with the negative pole of the fourth rectifying tube (11) through the connecting piece (12).

7. The high thermal conductivity wire bond package bridge rectifier of claim 1, wherein: a connecting piece (12) is arranged between the positive pole of the fourth rectifying tube (11) and the negative pole of the third rectifying tube (10), and the positive pole of the fourth rectifying tube (11) is fixedly connected with the negative pole of the third rectifying tube (10) through the connecting piece (12).