CN216056803U - Power factor correction module and programming power supply - Google Patents
Power factor correction module and programming power supply Download PDFInfo
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- CN216056803U CN216056803U CN202122628204.8U CN202122628204U CN216056803U CN 216056803 U CN216056803 U CN 216056803U CN 202122628204 U CN202122628204 U CN 202122628204U CN 216056803 U CN216056803 U CN 216056803U
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- factor correction
- power factor
- power supply
- heat dissipation
- power
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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Abstract
The utility model relates to the technical field of power supplies, in particular to a power factor correction module and a programming power supply. The utility model adopts a modular structure, greatly reduces the volume of the power factor correction module, greatly increases the heat dissipation area of the convex heat dissipation substrate, and can increase heat-conducting glue in the convex heat dissipation substrate and the heat dissipation effect of the convex heat dissipation substrate, wherein the convex protruding part is positioned in the shell; the purpose of reducing the size of the power factor correction module is achieved, and the heat dissipation effect is further enhanced. Meanwhile, the power factor correction module is added on the basis of the existing power supply, the power factor of the whole power supply is effectively improved, the harmonic pollution of the power supply is also effectively reduced, the problems of volume, assembly and disassembly and maintenance are effectively solved by arranging the input and the output in a horizontal U shape, arranging each functional module in a partition mode and combining a modular packaging structure, and the volume of the power supply is reduced and the subsequent maintenance is facilitated by adopting a highly integrated modular structure.
Description
Technical Field
The utility model relates to the technical field of power supplies, in particular to a power factor correction module and a programming power supply.
Background
The high-frequency switching power supply is widely applied to various industries, and in the prior art, a direct-current power supply module mostly adopts a case structure, but the high power and the small volume are difficult to realize due to the structural layout problem.
The conventional Power Factor Correction (PFC) module has a large size and weight, and it is difficult to obtain a high power factor (usually about 0.9), and its operation performance is related to frequency, load variation and input voltage variation. And the heat dissipation of the power device also directly affects the stability and reliability of the power supply. However, the power factor correction module in the prior art usually adopts an air cooling structure, which has the following disadvantages: firstly, the air cooling structure causes the volume of the power factor correction module to be overlarge, and a fan is additionally arranged; secondly, the air cooling structure is easy to accumulate dust after long-time operation, thereby causing poor heat dissipation effect and also having adverse factors such as fan failure.
Therefore, a power factor correction module with small size and strong heat dissipation effect and a power module with high power and small volume are needed.
SUMMERY OF THE UTILITY MODEL
The utility model aims to solve the problems of large size and weight, poor heat dissipation effect, small power and large size of a power supply module of a power factor correction module in the prior art, and provides the power factor correction module and a programming power supply.
In order to realize the purpose of the utility model, the utility model provides the following technical scheme:
a power factor correction module comprises a heat dissipation substrate, a power tube, a shell and a circuit board, wherein the power tube and the circuit board are arranged in the shell; the circuit board is provided with a pad and a wiring end, the cross section of the heat dissipation substrate is in a convex shape, pins of the power tubes are electrically connected with the corresponding pad of the circuit board, and the plurality of power tubes are tightly attached to the side face of the heat dissipation substrate. The utility model adopts a modular structure, greatly reduces the volume of the power factor correction module, greatly increases the heat dissipation area of the convex heat dissipation substrate, and can increase heat-conducting glue in the convex heat dissipation substrate and the heat dissipation effect of the convex heat dissipation substrate, wherein the convex protruding part is positioned in the shell; the purpose of reducing the size of the power factor correction module is achieved, and the heat dissipation effect is further enhanced.
As a preferable aspect of the present invention, a bus bar connected to the terminal is provided inside the circuit board, and the pins of the plurality of power tubes are collectively connected to the terminal through the bus bar. According to the power factor correction module, the pins of the power tube are connected after being converged by the circuit board, and the output terminal is directly connected, so that the arrangement of internal circuits is tidier and more reasonable, and the reliability and stability of the power factor correction module are improved.
As a preferred scheme of the utility model, the pins of the power tube are connected with the bonding pads on the circuit board in a welding mode; the wiring end is welded on the circuit board and is provided with threads.
As a preferable aspect of the present invention, the case includes a case body and a case cover, wherein the case body abuts against a side surface or a top surface of the heat dissipation substrate; the shell cover is abutted to the shell body, and the terminal end face of the circuit board is flush with or extends out of the top surface of the shell cover.
A programming power supply comprises a case, an input filter unit, an inversion unit, a voltage transformation rectification unit, an output filter unit, a heat dissipation plate and a power factor correction module, wherein the input filter unit, the inversion unit, the voltage transformation rectification unit, the output filter unit and the heat dissipation plate are arranged in the case; the voltage transformation rectifying unit is arranged between the inversion unit and the output filtering unit. The utility model adds a power factor correction module on the basis of the existing power supply, effectively improves the power factor of the whole machine, and simultaneously effectively reduces the harmonic pollution of the power supply. And a highly integrated modular structure is adopted, so that the size of the power supply is reduced, and the subsequent maintenance is facilitated.
As a preferred embodiment of the present invention, the power factor correction module further includes a power factor correction inductor, and the power factor correction inductor is disposed between the output end of the input filter unit and the input end of the power factor correction module.
As a preferable aspect of the present invention, the inverter further includes a bus bar supporting capacitor plate, and the bus bar supporting capacitor plate is disposed on a top of the inverter unit.
As a preferred scheme of the present invention, the voltage transformation and rectification unit adopts a module combination structure, and includes two transformers arranged in parallel, and output ends of the transformers are directly connected to the rectification diodes.
As a preferable aspect of the present invention, the transformer rectifier unit is attached to the top surface of the heat dissipating plate.
In a preferred embodiment of the present invention, the heat dissipation substrate of the power factor correction module is attached to the top surface of the heat dissipation plate in close contact therewith.
Compared with the prior art, the utility model has the beneficial effects that:
1. the utility model adopts a modular structure, greatly reduces the volume of the power factor correction module, greatly increases the heat dissipation area of the convex heat dissipation substrate, and can increase heat-conducting glue in the convex heat dissipation substrate and the heat dissipation effect of the convex heat dissipation substrate, wherein the convex protruding part is positioned in the shell; the purpose of reducing the size of the power factor correction module is achieved, and the heat dissipation effect is further enhanced.
2. According to the power factor correction module, the pins of the power tube are connected after being converged by the circuit board, and the output terminal is directly connected, so that the arrangement of internal circuits is tidier and more reasonable, and the reliability and stability of the power factor correction module are improved.
3. The utility model adds a power factor correction module on the basis of the existing power supply, effectively improves the power factor of the whole machine, and simultaneously effectively reduces the harmonic pollution of the power supply. And a highly integrated modular structure is adopted, so that the size of the power supply is reduced, and the subsequent maintenance is facilitated.
Drawings
Fig. 1 is a schematic structural diagram a of a power factor correction module according to embodiment 1 of the present invention;
fig. 2 is a schematic structural diagram B of a power factor correction module according to embodiment 1 of the present invention;
fig. 3 is a schematic structural diagram of a programming power supply according to embodiment 2 of the present invention;
fig. 4 is a schematic structural diagram of a programming power supply according to embodiment 3 of the present invention;
the labels in the figure are: the power factor correction circuit comprises a heat dissipation substrate 1, a power tube 2, a shell 3, a circuit board 4, a chassis 5, an input filter unit 6, an inverter unit 7, a voltage transformation rectifier unit 8, an output filter unit 9, a heat dissipation plate 10, a power factor correction module 11, a power factor correction inductor 12 and a bus supporting capacitor plate 13.
Detailed Description
The present invention will be described in further detail with reference to test examples and specific embodiments. It should be understood that the scope of the above-described subject matter is not limited to the following examples, and any techniques implemented based on the disclosure of the present invention are within the scope of the present invention.
Example 1
As shown in fig. 1, a power factor correction module includes a heat dissipation substrate 1, a power tube 2, a housing 3, and a circuit board 4.
As shown in fig. 2, the power tube 2 and the circuit board 4 are disposed inside the housing 3; the circuit board 4 is provided with a bonding pad and a wiring end, and pins of the power tube 2 are electrically connected with the corresponding bonding pad of the circuit board 4. And a bus bar connected with the wiring terminal is arranged in the circuit board 4, and a plurality of pins of the power tubes 2 are respectively connected to the wiring terminal through the bus bar in a gathering manner. The pins of the power tube 2 are connected with the welding pads on the circuit board 4 in a welding mode; the wiring end is welded on the circuit board 4, and threads are arranged on the wiring end.
The shell 3 comprises a shell body and a shell cover, wherein the shell body is abutted against the side surface or the top surface of the heat dissipation substrate 1; the shell cover is abutted to the shell body, and the terminal end face of the circuit board 4 is flush with or extends out of the top surface of the shell cover.
The cross section of the heat dissipation substrate 1 is in a convex shape, and the plurality of power tubes 2 are closely attached to the side surface of the heat dissipation substrate 1.
Example 2
As shown in fig. 3, a programming power supply includes a chassis 5, and an input filter unit 6, an inverter unit 7, a transformer rectifier unit 8, an output filter unit 9, a heat sink 10, which are disposed in the chassis 5, and further includes a power factor correction module 11 according to embodiment 1, where the chassis 5 includes a front end and a rear end, the input filter unit 6 and the output filter unit 9 are disposed on an upper portion of a bottom plate of the rear end correspondingly, and the power factor correction module 11 and the inverter unit 7 are disposed on the heat sink 10 of the front end correspondingly; the voltage transformation rectifying unit 8 is arranged between the inverter unit 7 and the output filter unit 9.
The voltage transformation rectifying unit 8 adopts a module combination structure and comprises two transformers arranged in parallel, and the output ends of the transformers are directly connected to the rectifying diodes.
The transformation rectifying unit 8 is closely attached to the top surface of the heat dissipation plate 10.
The heat dissipation substrate 1 of the power factor correction module 11 is closely attached to the top surface of the heat dissipation plate 10.
Example 3
As shown in fig. 4, this embodiment is different from embodiment 2 in that it further includes a power factor correction inductor 12 and a bus bar supporting capacitor plate 13, where the power factor correction inductor 12 is disposed between the output end of the input filter unit 6 and the input end of the power factor correction module 11.
The bus bar supporting capacitor plate 13 is disposed on the top of the inverter unit 7.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.
Claims (10)
1. A power factor correction module comprises a heat dissipation substrate (1) and a power tube (2), and is characterized by further comprising a shell (3) and a circuit board (4), wherein the power tube (2) and the circuit board (4) are arranged inside the shell (3); the circuit board (4) is provided with a pad and a wiring end, the cross section of the heat dissipation substrate (1) is in a convex shape, pins of the power tubes (2) are electrically connected with the corresponding pad of the circuit board (4), and the power tubes (2) are tightly attached to the side face of the heat dissipation substrate (1).
2. A pfc module according to claim 1, characterized in that a bus bar is provided inside the circuit board (4) and connected to the terminals, and the pins of the power transistors (2) are collectively connected to the terminals via the bus bar, respectively.
3. A pfc module according to claim 1, characterized in that the pins of the power transistor (2) are connected to pads on the circuit board (4) by soldering; the wiring end is welded on the circuit board (4), and threads are arranged on the wiring end.
4. A pfc module according to claim 1, characterized in that said casing (3) comprises a casing body and a casing cover, wherein said casing body abuts against a side or top surface of said heat-dissipating substrate (1); the shell cover is abutted to the shell body, and the terminal end face of the circuit board (4) is flush with or extends out of the top surface of the shell cover.
5. A programming power supply, comprising a case (5), and an input filter unit (6), an inverter unit (7), a transformer rectifier unit (8), an output filter unit (9), and a heat sink (10) disposed in the case (5), characterized by further comprising a power factor correction module (11) according to any one of claims 1-4, wherein the case (5) comprises a front end and a rear end, the input filter unit (6) and the output filter unit (9) are disposed on the upper portion of the bottom plate of the rear end, and the power factor correction module (11) and the inverter unit (7) are disposed on the heat sink (10) of the front end; the transformation rectifying unit (8) is arranged between the inversion unit (7) and the output filtering unit (9).
6. A programming power supply according to claim 5, characterized in that it further comprises a power factor correction inductor (12), said power factor correction inductor (12) being arranged between the output of said input filter unit (6) and the input of said power factor correction module (11).
7. A programming power supply according to claim 5, characterized by further comprising a bus bar supporting capacitor plate (13), said bus bar supporting capacitor plate (13) being arranged on top of said inverter unit (7).
8. A programming power supply according to claim 5, characterized in that the transforming and rectifying unit (8) is in a modular configuration comprising two transformers arranged in parallel, the output terminals of the transformers being directly connected to the rectifying diodes.
9. A programming power supply according to claim 5, characterized in that said transformer rectifier unit (8) is mounted closely on the top surface of said heat sink (10).
10. A programming power supply according to claim 5, characterized in that the heat sink substrate (1) of the PFC module (11) is mounted against the top surface of the heat sink (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122628204.8U CN216056803U (en) | 2021-10-29 | 2021-10-29 | Power factor correction module and programming power supply |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122628204.8U CN216056803U (en) | 2021-10-29 | 2021-10-29 | Power factor correction module and programming power supply |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216056803U true CN216056803U (en) | 2022-03-15 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122628204.8U Active CN216056803U (en) | 2021-10-29 | 2021-10-29 | Power factor correction module and programming power supply |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216056803U (en) |
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2021
- 2021-10-29 CN CN202122628204.8U patent/CN216056803U/en active Active
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