CN219576850U - High-power half-bridge, power module and power module - Google Patents
High-power half-bridge, power module and power module Download PDFInfo
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- CN219576850U CN219576850U CN202320900360.1U CN202320900360U CN219576850U CN 219576850 U CN219576850 U CN 219576850U CN 202320900360 U CN202320900360 U CN 202320900360U CN 219576850 U CN219576850 U CN 219576850U
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Abstract
The utility model relates to the electrical field, in particular to a high-power half-bridge, a power module and a power module, wherein the high-power half-bridge comprises a heat dissipation strip, a circuit board and a plurality of power tubes welded on the circuit board, one side surface or two side surfaces of the heat dissipation strip are provided with the power tubes, the heat dissipation strip is provided with a pressing strip, one side of the power tube is abutted with the heat dissipation strip, the opposite side is abutted with the pressing strip, and the power tubes are clamped and fixed by the pressing strip; the pressing strip is constructed as a bending structural member, a pressing strip fixing hole is formed in the top of the radiating strip, and one end of the pressing strip is fixedly connected with the pressing strip fixing hole through a bolt; the high-power half-bridge has compact structural arrangement, small volume, light weight, easy replacement of the power tube and convenient assembly and maintenance; the power module consists of a high-power half-bridge and a driving plate, and the driving plate and the high-power half-bridge are arranged in a modularized manner, so that the maintenance is easy; the power module is formed by connecting two power modules in parallel, and has good multi-pipe parallel connection current uniformity.
Description
Technical Field
The utility model relates to the field of electricity, in particular to a high-power half-bridge, a power module and a power module.
Background
At present, the high-power half-bridge in the prior art mostly adopts high-power tubes for combined output, and the volume of a single power tube is large, so that the corresponding power module is large in volume and heavy in weight. The individual prior patent (application number 202221639605.1 power module) adopts a plurality of low-power tubes to output in parallel, but the multi-tube parallel connection of the power tubes has poor current uniformity, the structure of the power module is complex, the production and the assembly of the power module are complex, and a circuit board is required to be detached when the power tubes are maintained and replaced in the later period, so that the structure is troublesome.
Therefore, a technical scheme is needed at present to solve the technical problems of large size, heavy weight, poor parallel current uniformity of multiple pipes and complex structure of the power module.
Disclosure of Invention
The utility model aims at: aiming at the technical problems of large volume, heavy weight, poor multi-pipe parallel current uniformity and complex structure of the power module of the existing power module, the high-power half-bridge, the power module and the power module are provided.
In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:
the high-power half-bridge is characterized by comprising a heat dissipation strip, a circuit board and a plurality of power tubes welded on the circuit board, wherein one side surface or two side surfaces of the heat dissipation strip are provided with pressing strips, one side of the power tube is abutted against the heat dissipation strip, and the other opposite side is abutted against the pressing strips and clamped and fixed by the pressing strips; the layering is constructed as buckling structure, the layering fixed orifices has been seted up at the heat dissipation strip top, the one end of layering with the layering fixed orifices is fixed through bolted connection.
According to the high-power half-bridge, the plurality of power tubes are arranged on the circuit board and are abutted against the side surfaces of the radiating strips, the heat on the power tubes is taken away through the radiating strips, so that the power tubes work normally, the pressing strips are arranged on the radiating strips, one side of each power tube is extruded by the pressing strips, the other side of each power tube is abutted against the radiating strips, and the heat generated by the power tubes can be timely taken away by the radiating strips; the pressing strip is detachably connected with the top of the heat dissipation strip, so that the installation and the disassembly of the pressing strip are convenient, and the power tube is easy to maintain and replace; the high-power half-bridge performs power conversion in a multi-power tube arrangement mode, has a simple structure and is easy to maintain, and has the advantage of small volume; the main heat dissipation element is a heat dissipation strip, and the design of a single flow channel reduces the weight of the high-power half-bridge while providing a good heat dissipation effect.
As a preferable scheme of the utility model, the heat dissipation strip is internally provided with a fluid channel, and the fluid channel penetrates through two longitudinal ends of the heat dissipation strip. The heat dissipation strip is internally provided with a fluid channel, the fluid channel penetrates through two longitudinal ends of the heat dissipation strip, one end of the heat dissipation strip is configured as a fluid inlet, the other end of the heat dissipation strip is configured as a fluid outlet, and heat on the heat dissipation strip is taken away by the flowing of cooling liquid in the fluid channel, so that the power tube is cooled.
As a preferable scheme of the utility model, a plurality of power tubes are arranged along the length direction of the heat dissipation strip, and the top of the heat dissipation strip corresponding to each power tube is provided with the pressing strip fixing hole. Through arranging the power tube on the length direction of radiating strip, make every power tube all can carry out good cooling by the radiating strip, the power tube is leaned on the radiating strip, occupation space is littleer.
As a preferable scheme of the utility model, the heat dissipation strip is connected with the circuit board through bolts, and an insulating piece is arranged between the circuit board and the heat dissipation strip. The insulating piece is arranged to isolate the circuit board from the radiating strip, so that electrification of the radiating strip is avoided, and better safety is provided.
As a preferable scheme of the utility model, the circuit board also comprises a plurality of filter capacitors, wherein the filter capacitors and the radiating strips are positioned on the same mounting surface of the circuit board, and adjacent filter capacitors are abutted. The filter capacitor and the radiating strip are arranged on the same mounting surface of the circuit board, so that the other mounting surface is empty, and the high-power half-bridge is convenient to connect with each other; adjacent filter capacitors are abutted, so that the space occupied by the filter capacitors is smaller, and the high-power half-bridge is miniaturized conveniently.
As a preferable scheme of the utility model, two heat dissipation strips are arranged, adjacent heat dissipation strips are parallel to each other, and the filter capacitor is arranged between the two heat dissipation strips. Two parallel heat dissipation strips are arranged, and the power tube is attached to two sides of the heat dissipation strips, so that the power tube is convenient to install and detach; and a filter capacitor is arranged between the radiating strips, so that a filter function is realized, the layout is reasonable, and the volume of the high-power half-bridge is reduced.
As a preferable scheme of the utility model, the filter capacitors are arranged in a parallel manner, and the arrangement direction is parallel to the length direction of the radiating strip. The filter capacitors are arranged in a parallel manner, so that the maintenance is convenient, the arrangement direction is parallel to the length direction of the radiating strips, a gap is reserved between the radiating strips and the filter capacitors, and the installation and the maintenance of the power tube are convenient.
As a preferable scheme of the utility model, an input end and an output end are arranged at the edge position of the circuit board, the input end, the output end and the radiating strip are positioned on the same mounting surface of the circuit board, and the input end and the output end are arranged at intervals. The input end, the output end and the radiating strips are all positioned on the same mounting surface of the circuit board, so that the arrangement structure of the high-power half-bridge is more compact, the input end and the output end are arranged at intervals, and an operator can conveniently carry out circuit connection on the high-power half-bridge.
The power module comprises a driving plate and the high-power half-bridge, wherein the driving plate is covered on the radiating strip, and the driving plate is detachably connected with the circuit board.
According to the power module, the high-power half-bridge and the driving plate are detachably connected, the high-power half-bridge and the driving plate are arranged in a modularized mode, the structure is simple, the maintenance is easy, a plurality of high-power half-bridges can be used in parallel, the parallel flow uniformity of multiple pipes of the power module is improved, the driving plate is covered on the heat dissipation strip, one side of the circuit board is in an empty state, the two power modules can be connected in a mode that the empty sides are mutually attached, and the occupied space is reduced.
The utility model provides a power module, includes that input is female arranges, output is female arranges, insulation board and two foretell power module, two insert between the power module the insulation board, two power module's input all with the female row of input is connected, two power module's output all with the female row of output is connected.
According to the power module, the insulating plates are clamped between the two power modules, so that the two circuit boards are mutually isolated, the output ends of the power modules are connected with the output busbar, the input ends of the power modules are connected with the input busbar, the two power modules are connected in parallel, the connection mode between the power modules is simple, and the installation and maintenance are convenient.
In summary, due to the adoption of the technical scheme, the beneficial effects of the utility model are as follows:
1. according to the high-power half-bridge, the plurality of power tubes are arranged on the circuit board and are abutted against the side surfaces of the radiating strips, the heat on the power tubes is taken away through the radiating strips, so that the power tubes work normally, the pressing strips are arranged on the radiating strips, one side of each power tube is extruded by the pressing strips, the other side of each power tube is abutted against the radiating strips, and the heat generated by the power tubes can be timely taken away by the radiating strips; the pressing strip is detachably connected with the top of the heat dissipation strip, so that the installation and the disassembly of the pressing strip are convenient, and the power tube is easy to maintain and replace; the high-power half-bridge performs power conversion in a multi-power tube arrangement mode, has a simple structure and is easy to maintain, and has the advantage of small volume; the main heat dissipation element is a heat dissipation strip, and the design of a single flow channel reduces the weight of the high-power half-bridge while providing a good heat dissipation effect.
2. According to the power module, the high-power half-bridge and the driving plate are detachably connected, the high-power half-bridge and the driving plate are arranged in a modularized mode, the structure is simple, the maintenance is easy, a plurality of high-power half-bridges can be used in parallel, the parallel flow uniformity of multiple pipes of the power module is improved, the driving plate is covered on the heat dissipation strip, one side of the circuit board is in an empty state, the two power modules can be connected in a mode that the empty sides are mutually attached, and the occupied space is reduced.
3. According to the power module, the insulating plates are clamped between the two power modules, so that the two circuit boards are mutually isolated, the output ends of the power modules are connected with the output busbar, the input ends of the power modules are connected with the input busbar, the two power modules are connected in parallel, the connection mode between the power modules is simple, and the installation and maintenance are convenient.
4. The power module is simple in structure, easy to manufacture, and convenient to maintain, and the power tube on the circuit board is easy to detach and install; the driving plate and the high-power half-bridge are arranged in a modularized manner, so that the fault of the power module can be rapidly solved in a mode of replacing the driving plate or the high-power half-bridge; the two power modules are connected in parallel to form the power module, the power modules are connected in a mode that the empty sides are mutually attached, and the occupied space is smaller; the power module has the advantages of small volume, light weight, good parallel flow uniformity of multiple pipes, simple structure, easy assembly and maintenance and good economic and practical values.
Drawings
FIG. 1 is a schematic diagram of an exploded construction of a high power half-bridge;
FIG. 2 is a schematic diagram of a high power half-bridge configuration;
FIG. 3 is a schematic diagram of an exploded construction of a power module;
FIG. 4 is a schematic diagram of an exploded view of a power module;
fig. 5 is a schematic structural diagram of a power module.
Icon:
the circuit board 1-2-power tube 3-heat dissipation strip, 4-layering, 5-filter capacitor, 6-insulator, 7-input, 8-output, 9-connecting bolt, 10-drive board, 11-insulator, 12-input busbar, 13-output busbar.
Detailed Description
The present utility model will be described in detail with reference to the accompanying drawings.
The present utility model will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present utility model more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the utility model.
Example 1
1-2, a high-power half-bridge comprises a heat dissipation strip 3, a circuit board 1 and a plurality of power tubes 2 welded on the circuit board 1, wherein one side surface or two side surfaces of the heat dissipation strip 3 are provided with a pressing strip 4, one side of the power tube 2 is abutted with the heat dissipation strip 3, and the other opposite side is abutted with the pressing strip 4 and is clamped and fixed by the pressing strip 4; the pressing strip 4 is constructed as a bending structural member, a pressing strip fixing hole is formed in the top of the heat dissipation strip 3, and one end of the pressing strip 4 is fixedly connected with the pressing strip fixing hole through a bolt.
Specifically, two mutually parallel heat dissipation strips 3 are arranged on the circuit board 1, a plurality of filter capacitors 5 are arranged between the two heat dissipation strips 3, the filter capacitors 5 are arranged in two rows, the arrangement direction of the filter capacitors 5 is parallel to the heat dissipation strips 3, and adjacent filter capacitors 5 are arranged in a mutually abutting mode; the batten 4 is a bending structural member, one end of the bending structural member is provided with a connecting hole, the connecting hole is matched with a batten fixing hole formed in the top of the heat dissipation strip 3, and the connecting bolt 9 penetrates through the connecting hole and then is connected with the batten fixing hole in a matched manner, so that the bending structural member is fixed on the top surface of the heat dissipation strip 3; the bending structural member is bent towards one side where the power tube 2 is installed, so that the bending structural member is abutted against one side, far away from the heat dissipation strip 3, of the power tube 2, and the bending structural member applies force to the power tube 2, so that the power tube 2 is abutted against the heat dissipation strip 3.
Specifically, the top of the heat dissipation strip 3 corresponding to the power tube 2 attached to the heat dissipation strip 3 is provided with a pressing strip fixing hole, so that each power tube 2 can be independently used as a bending structural member.
Specifically, an insulating member 6 is disposed between the heat dissipation bar 3 and the circuit board 1, the insulating member 6 is a plate-shaped structural member adapted to the shape of the bottom surface of the heat dissipation bar 3, and the insulating member 6 is detachably connected with the circuit board 1.
Specifically, a fluid channel is arranged in the heat dissipation strip 3, and penetrates through two longitudinal ends of the heat dissipation strip 3, so that one end of the fluid channel is used as a fluid inlet, the other end of the fluid channel is used as a fluid outlet, and pipeline connectors with a rapid splicing function are arranged on the fluid inlet and the fluid outlet, so that a liquid inlet pipe and a liquid outlet pipe can be conveniently connected; through the liquid inlet pipe and the liquid outlet pipe, the cooling liquid flows unidirectionally in the fluid channel, and heat on the heat dissipation strip 3 is taken away; the power tube 2 attached to the heat dissipation strip 3 transfers heat to the heat dissipation strip 3 in a heat transfer mode, so that the heat dissipation strip 3 has a good cooling effect on the power tube 2.
Specifically, an input end 7 and an output end 8 are arranged at the edge position of the circuit board 1, the input end 7, the output end 8 and the radiating strip 3 are all positioned on the same mounting surface of the circuit board 1, and the input end 7 and the output end 8 are arranged on two opposite sides of the circuit board 1; the input 7 is constituted by a number of inputs 7 and the output 8 is constituted by a number of outputs 8.
Specifically, the input end 7, the output end 8, the heat dissipation strip 3, the power tube 2 and the filter capacitor 5 are all located in the same mounting surface of the circuit board 1.
According to the high-power half-bridge, the circuit board 1 is provided with the power tubes 2, the power tubes 2 are abutted against the side surfaces of the radiating strips 3, heat on the power tubes 2 is taken away through the radiating strips 3, the power tubes 2 work normally, the radiating strips 3 are provided with the pressing strips 4, one side of the power tubes 2 is extruded by the pressing strips 4, the other side of the power tubes 2 is abutted against the radiating strips 3, and the heat generated by the power tubes 2 can be timely taken away by the radiating strips 3; the pressing strip 4 is detachably connected with the top of the heat dissipation strip 3, so that the installation and the disassembly of the pressing strip 4 are facilitated, and the power tube 2 is easy to maintain and replace; the high-power half-bridge of the utility model adopts the mode of arranging the multi-power tubes 2 to carry out power conversion, has simple structure and easy maintenance, and has the advantages of small volume and light weight.
Example 2
A power module as shown in fig. 3 includes a driving board 10 and a high-power half-bridge of embodiment 1, the driving board 10 is covered on the heat dissipation strip 3, and the driving board 10 is detachably connected with the circuit board 1.
Specifically, the shape of the drive board 10 is adapted to the circuit board 1.
Specifically, the driving board 10 is electrically bolted to the circuit board 1.
According to the power module, the high-power half bridge and the driving plate 10 are detachably connected, the high-power half bridge and the driving plate 10 are arranged in a modularized mode, the structure is simple, maintenance is easy, a plurality of high-power half bridges can be used in parallel, the parallel flow uniformity of multiple pipes of the power module is improved, the driving plate 10 is covered on the heat dissipation strip 3, one side of the circuit board 1 is in an empty state, two power modules can be connected in a mode that the empty sides are mutually attached, and occupied space is reduced.
Example 3
The power module shown in fig. 4-5 includes an input busbar 12, an output busbar 13, an insulating board 11, and two power modules of embodiment 2, wherein the insulating board 11 is sandwiched between the two power modules, the input ends 7 of the two power modules are connected with the input busbar 12, and the output ends 8 of the two power modules are connected with the output busbar 13.
Specifically, the input busbar 12 is connected with the input end 7 by a bolt, and the output busbar 13 is connected with the output end 8 by a bolt.
Specifically, the two power modules are connected in a manner that the empty sides of the circuit board 1 are mutually buckled.
According to the power module, the insulating plates 11 are clamped between the two power modules, so that the two circuit boards 1 are mutually isolated, the output ends 8 of the power modules are connected with the output busbar 13, the input ends 7 of the power modules are connected with the input busbar 12, the two power modules are connected in parallel, the connection mode between the power modules is simple, and the installation and maintenance are convenient.
The foregoing description of the preferred embodiments of the utility model is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the utility model.
Claims (10)
1. The high-power half-bridge is characterized by comprising a heat dissipation strip (3), a circuit board (1) and a plurality of power tubes (2) welded on the circuit board (1), wherein one side surface or two side surfaces of the heat dissipation strip (3) are provided with pressing strips (4), one side of the power tube (2) is abutted with the heat dissipation strip (3), and the other opposite side is abutted with the pressing strips (4) and clamped and fixed by the pressing strips (4); the layering (4) is constructed to be the bending structure, layering fixed orifices has been seted up at heat dissipation strip (3) top, the one end of layering (4) with the layering fixed orifices is fixed through bolted connection.
2. A high-power half-bridge according to claim 1, characterized in that the heat sink strip (3) is internally provided with fluid channels extending through both longitudinal ends of the heat sink strip (3).
3. The high-power half-bridge according to claim 1, wherein a plurality of the power tubes (2) are arranged along the length direction of the heat dissipation strips (3), and the top of the heat dissipation strip (3) corresponding to each power tube (2) is provided with the pressing strip fixing hole.
4. A high-power half-bridge according to claim 1, characterized in that the heat dissipating strip (3) is bolted to the circuit board (1), and that an insulating member (6) is sandwiched between the circuit board (1) and the heat dissipating strip (3).
5. A high-power half-bridge according to claim 1, further comprising a plurality of filter capacitors (5), wherein the filter capacitors (5) are located on the same mounting surface of the circuit board (1) as the heat dissipation strip (3), and adjacent filter capacitors (5) are abutted.
6. A high-power half-bridge according to claim 5, characterized in that two heat dissipation strips (3) are provided, adjacent heat dissipation strips (3) are parallel to each other, and the filter capacitor (5) is provided between two heat dissipation strips (3).
7. A high-power half-bridge according to claim 6, characterized in that a number of said filter capacitors (5) are arranged in parallel with the length direction of said heat dissipating strip (3).
8. A high-power half-bridge according to claim 5, characterized in that an input end (7) and an output end (8) are arranged at the edge position of the circuit board (1), the input end (7), the output end (8) and the heat dissipation strip (3) are arranged on the same mounting surface of the circuit board (1), and the input end (7) and the output end (8) are arranged at intervals.
9. A power module characterized by comprising a driving board (10) and the high-power half-bridge according to any one of claims 1-8, wherein the driving board (10) is covered on the heat dissipation strip (3), and the driving board (10) is detachably connected with the circuit board (1).
10. The utility model provides a power module, its characterized in that includes female row (12) of input, the female row (13) of output, insulation board (11) and two power module of claim 9, two insert between the power module insulating board (11), two power module's input (7) all with female row (12) of input is connected, two power module's output (8) all with female row (13) of output is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320900360.1U CN219576850U (en) | 2023-04-20 | 2023-04-20 | High-power half-bridge, power module and power module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320900360.1U CN219576850U (en) | 2023-04-20 | 2023-04-20 | High-power half-bridge, power module and power module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219576850U true CN219576850U (en) | 2023-08-22 |
Family
ID=87665097
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320900360.1U Active CN219576850U (en) | 2023-04-20 | 2023-04-20 | High-power half-bridge, power module and power module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219576850U (en) |
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2023
- 2023-04-20 CN CN202320900360.1U patent/CN219576850U/en active Active
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