CN216699850U

CN216699850U - High-power synchronous rectification module

Info

Publication number: CN216699850U
Application number: CN202123435462.0U
Authority: CN
Inventors: 任航; 聂新桂; 黄嘉栋
Original assignee: Foshan Jiechuang Technology Co ltd
Current assignee: Foshan Jiechuang Technology Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-06-07
Anticipated expiration: 2031-12-30

Abstract

The utility model discloses a high-power synchronous rectification module which comprises a first copper plate, a second copper plate, a third copper plate and MOS (metal oxide semiconductor) tubes, wherein the second copper plate is arranged on one side of the first copper plate, the third copper plate is arranged on the other side of the first copper plate, copper blocks are arranged on the surface of the first copper plate, the MOS tubes are connected to the surfaces of the second copper plate and the third copper plate, and pins are arranged on one side of each MOS tube. This high-power synchronous rectification module links to each other into a module with first copper, second copper and third copper, parallelly connected the placing on the surface of radiator main part with two the same modules again, the copper billet of every module connects high frequency transformer through connecting plate and transformer negative side, so connect the module that has just formed a synchronous rectification, and then every this kind of solitary module can increase current through the mode of parallelly connected each other, make the radiator main part carry out high-efficient heat dissipation to the MOS pipe on this module through leading to water refrigerated mode.

Description

High-power synchronous rectification module

Technical Field

The utility model relates to the technical field of high-power synchronous rectification modules, in particular to a high-power synchronous rectification module.

Background

With the rapid development of electronic technology, the working voltage and current of the circuit are lower and higher, and the low-voltage operation is beneficial to reducing the overall power consumption of the circuit. Synchronous rectification is a new technology that uses a special power MOSFET with extremely low on-state resistance to replace a rectifier diode to reduce the rectification loss. Synchronous rectifier module is various in the market, but high-power synchronous rectifier module still has some problems that are difficult to satisfy actual need when using yet, just as for example:

1. when the high-power synchronous rectification module is used, the current is difficult to increase;

2. the high-power synchronous rectification module is difficult to perform high-efficiency heat dissipation on the MOS tube;

therefore, improvements are made to the above problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a high-power synchronous rectification module to solve the problems that the current is difficult to increase when the high-power synchronous rectification module provided by the background technology is used and the high-power synchronous rectification module is difficult to efficiently radiate an MOS (metal oxide semiconductor) tube.

In order to achieve the purpose, the utility model provides the following technical scheme: a high-power synchronous rectification module comprises a first copper plate, a second copper plate, a third copper plate and MOS (metal oxide semiconductor) tubes, wherein the second copper plate is arranged on one side of the first copper plate, the third copper plate is arranged on the other side of the first copper plate, copper blocks are arranged on the surface of the first copper plate, the MOS tubes are connected to the surfaces of the second copper plate and the third copper plate, and pins are arranged on one side of each MOS tube;

the screw hole is seted up one side that MOS pipe was kept away from to the second copper, one side that first copper was kept away from to the copper billet is provided with the connecting plate, and the outside of connecting plate is to having transformer negative side, the surface mounting that the copper billet was kept away from to first copper has the radiator main part, transformer negative side is connected with high frequency transformer.

Preferably, the first copper plate, the second copper plate and the third copper plate are symmetrically distributed about a center line of the radiator main body, and the radiator main body adopts a water-through radiator, so that the elements on the module can be efficiently radiated through the radiator main body.

Preferably, the second copper runs through the screw hole through the screw and contacts with the radiator main part to be connected, and the screw hole is equidistant distribution, connects through the contact of radiator main part and second copper for the second copper that calorific capacity is big can directly press close to the radiator main part, consequently can do benefit to the heat conduction.

Preferably, the copper block is located in the middle of the surface of the first copper plate, the copper block is in welded connection with the first copper plate, and the assembly of the module is conveniently welded into a whole through the welded connection between the copper block and the first copper plate.

Preferably, the connecting plate adopts the copper to make, and the connecting plate is "L" style of calligraphy, and the connecting plate of making through adopting the copper conveniently conducts electricity.

Preferably, the connecting plate and the copper block are perpendicular to each other, the connecting plate and the negative side of the transformer are connected through screws, and the connecting plate and the negative side of the transformer are connected through screws, so that the module and the high-frequency transformer are conveniently butted.

Compared with the prior art, the utility model has the beneficial effects that: this high-power synchronous rectification module links to each other into a module with first copper, second copper and third copper, parallelly connected the placing on the surface of radiator main part with two the same modules again, the copper billet of every module connects high frequency transformer through connecting plate and transformer negative side, so connect the module that has just formed a synchronous rectification, and then every this kind of solitary module can increase current through the mode of parallelly connected each other, make the radiator main part carry out high-efficient heat dissipation to the MOS pipe on this module through leading to water refrigerated mode.

1. According to the high-power synchronous rectification module, a pin on one side of an MOS (metal oxide semiconductor) tube is welded on a first copper plate, the first copper plate, a second copper plate and a third copper plate are connected into a module, two identical modules are placed on the surface of a radiator main body in parallel, a copper block of each module is connected with a high-frequency transformer through a connecting plate and a negative side of the transformer, a synchronous rectification module is formed through connection, and then each independent module can increase current through a mode of mutual parallel connection;

2. this high-power synchronous rectifier module runs through the screw hole through the screw and carries out the contact with second copper and radiator main part and be connected to make the radiator main part carry out high-efficient heat dissipation to the MOS pipe on this module through leading to water refrigerated mode, reduced the temperature of original paper greatly.

Drawings

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

FIG. 2 is a left side view of the present invention;

FIG. 3 is a rear view of the present invention;

FIG. 4 is a schematic left-view structural diagram of an MOS transistor according to the present invention;

FIG. 5 is a schematic perspective view of the connection between the copper block and the connection plate according to the present invention;

fig. 6 is a schematic view of the overall structure of the present invention.

In the figure: 1. a first copper plate; 2. a second copper plate; 3. a third copper plate; 4. a copper block; 5. an MOS tube; 6. a pin; 7. a screw hole; 8. a connecting plate; 9. the negative side of the transformer; 10. a heat sink body; 11. a high frequency transformer.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

Referring to fig. 1-6, the present invention provides a technical solution: a high-power synchronous rectification module comprises a first copper plate 1, a second copper plate 2, a third copper plate 3 and an MOS (metal oxide semiconductor) tube 5, wherein the second copper plate 2 is arranged on one side of the first copper plate 1, the third copper plate 3 is arranged on the other side of the first copper plate 1, a copper block 4 is arranged on the surface of the first copper plate 1, the MOS tube 5 is connected to the surfaces of the second copper plate 2 and the third copper plate 3, and a pin 6 is arranged on one side of the MOS tube 5;

screw hole 7, offer in the one side that MOS pipe 5 was kept away from to second copper 2, the one side that first copper 1 was kept away from to copper billet 4 is provided with connecting plate 8, and the outside of connecting plate 8 is to having transformer negative side 9, and the surface mounting that copper billet 4 was kept away from to first copper 1 has radiator main part 10, and transformer negative side 9 is connected with high frequency transformer 11.

The first copper plate 1, the second copper plate 2 and the third copper plate 3 are symmetrically distributed about the center line of the radiator main body 10, and the radiator main body 10 adopts a water-through radiator; the second copper plate 2 is connected to the radiator body 10 by passing through screw holes 7 with screws, and the screw holes 7 are equally spaced.

The second copper plate 2 is in contact connection with the radiator main body 10 through the screw through screw holes 7, so that the radiator main body 10 efficiently radiates the MOS tube 5 on the module in a water cooling mode, and the temperature of an original piece is greatly reduced.

The copper block 4 is positioned in the middle of the surface of the first copper plate 1, and the copper block 4 is connected with the first copper plate 1 in a welding manner; the connecting plate 8 is made of a copper plate, and the connecting plate 8 is L-shaped; the connecting plate 8 and the copper block 4 are perpendicular to each other, and the connecting plate 8 and the negative side 9 of the transformer are connected through screws.

The pin 6 of MOS pipe 5 one side is welded on first copper 1, link to each other first copper 1, second copper 2 and third copper 3 and become a module, parallelly connected the placing on the surface of radiator main part 10 with two the same modules again, the copper billet 4 of every module connects high frequency transformer 11 through connecting plate 8 and transformer negative side 9, so connect and just formed the module of a synchronous rectification, and then every this kind of solitary module can increase current through the mode of parallelly connected each other.

In summary, two transformer negative sides 9 with the same specification are connected with a high frequency transformer 11, a radiator main body 10 is arranged between the two transformer negative sides 9, the same module is formed by welding a first copper plate 1, a second copper plate 2, a third copper plate 3, a copper block 4 and an MOS tube 5 by tin soldering, a pin 6 at one side of the MOS tube 5 is welded on the first copper plate 1, the second copper plate 2 and the third copper plate 3 are connected into a module, then the two same modules are arranged on the surface of the radiator main body 10 in parallel, the radiator main body 10 efficiently radiates the MOS tube 5 on the module by a water cooling mode, because the two same modules are arranged on the radiator main body 10 in a back-to-back manner, and simultaneously, the copper block 4 of each module is connected with the high frequency transformer 11 through a connecting plate 8 and the transformer negative sides 9, a synchronous rectification module is formed by the connection, each of these individual modules may then increase the current through the parallel mode to achieve high power usage, and what is not described in detail in this description is well known to those skilled in the art.

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 various changes in the embodiments and/or modifications of the utility model can be made, and equivalents and modifications of some features of the utility model can be made without departing from the spirit and scope of the utility model.

Claims

1. The utility model provides a high-power synchronous rectifier module, includes first copper (1), second copper (2), third copper (3) and MOS pipe (5), its characterized in that:

a second copper plate (2) is arranged on one side of the first copper plate (1), a third copper plate (3) is arranged on the other side of the first copper plate (1), a copper block (4) is arranged on the surface of the first copper plate (1), MOS (metal oxide semiconductor) tubes (5) are connected to the surfaces of the second copper plate (2) and the third copper plate (3), and pins (6) are arranged on one side of the MOS tubes (5);

screw hole (7) are seted up one side of MOS pipe (5) is kept away from in second copper (2), one side that first copper (1) was kept away from in copper (4) is provided with connecting plate (8), and the outside of connecting plate (8) is to having transformer negative side (9), the surface mounting that copper (4) were kept away from in first copper (1) has radiator main part (10), transformer negative side (9) are connected with high frequency transformer (11).

2. The high power synchronous rectification module of claim 1, wherein: the first copper plate (1), the second copper plate (2) and the third copper plate (3) are symmetrically distributed about the center line of the radiator main body (10), and the radiator main body (10) adopts a water-through radiator.

3. The high power synchronous rectification module of claim 2, wherein: the second copper plate (2) is connected with the radiator main body (10) in a contact mode through a screw penetrating through a screw hole (7), and the screw holes (7) are distributed at equal intervals.

4. The high power synchronous rectification module of claim 1, wherein: the copper block (4) is located in the middle of the surface of the first copper plate (1), and the copper block (4) is connected with the first copper plate (1) in a welding mode.

5. The high power synchronous rectification module according to claim 1, wherein: the connecting plate (8) is made of a copper plate, and the connecting plate (8) is L-shaped.

6. The high power synchronous rectification module of claim 5, wherein: the connecting plate (8) and the copper block (4) are perpendicular to each other, and the connecting plate (8) is connected with the negative side (9) of the transformer through screws.