CN216852962U - Heat radiation structure of switching power supply heating device - Google Patents
Heat radiation structure of switching power supply heating device Download PDFInfo
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- CN216852962U CN216852962U CN202220456656.4U CN202220456656U CN216852962U CN 216852962 U CN216852962 U CN 216852962U CN 202220456656 U CN202220456656 U CN 202220456656U CN 216852962 U CN216852962 U CN 216852962U
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Abstract
The utility model discloses a heat radiation structure of a switching power supply heating device, which comprises a metal base, a circuit board and a circuit device arranged on the circuit board, wherein the circuit device comprises a plurality of heating devices, the base comprises a bottom plate and two side plates, and the heating devices comprise a plurality of power devices and a plurality of magnetic devices; the base comprises a heat-conducting glue groove, the two side plates form two side walls of the heat-conducting glue groove, the heating device is arranged in the heat-conducting glue groove, the power device is fixed on the inner walls of the side plates, and the magnetic device is arranged in the middle of the heat-conducting glue groove; the heat-conducting glue groove is filled with heat-conducting glue. The utility model discloses except that power device can be directly give the curb plate on the base with the heat transfer, magnetic device and power device all can dispel the heat through whole metal base with heat transfer for metal base through the heat conduction glue, and heat radiation structure is simple, the radiating effect is good.
Description
[ technical field ]
The utility model relates to a switching power supply especially relates to a switching power supply generates heat radiation structure of device.
[ background art ]
The conventional switching power supply comprises a rectangular casing made of aluminum alloy or steel and a printed circuit board fixed in the casing, wherein various electronic components such as a switching transformer, a switching tube, a rectifying tube, a magnetic ring, a resistor and the like are fixed on the printed circuit board. The qualified heat dissipation performance requirement of the switching power supply is that under the environment of a constant-temperature oven at 50 ℃, the long-time working temperature of heating electronic components on a printed circuit board of the switching power supply does not exceed 120 ℃, otherwise the electronic components are damaged, and therefore a heat dissipation device such as a heat dissipation fin or a fan is arranged between the shell of the switching power supply and the printed circuit board. If the power of the switching power supply sold on the market is more than 200 watts, a fan is required to be arranged for the switching power supply to obtain a good radiating effect, and the radiating fan is arranged between the shell and the printed circuit board, so that on one hand, the manufacturing cost is undoubtedly greatly increased, meanwhile, the maintenance cost of fan damage and the like in the later period is increased, the mobility, the falling resistance and the shock resistance of the switching power supply are reduced, and the service life of the fan in all parts of the switching power supply is shortest, so that the design of the fan obviously influences the service life of the switching power supply; on the other hand, after the heat radiation fan is arranged, the design of an air channel in the switching power supply needs to be considered, so that the design of the printed circuit board is influenced, and the design cost is increased; and switching power supply sets up radiator fan after, undoubtedly greatly increased the circulation of air speed in the switching power supply, obviously increased the dust accumulation in the switching power supply, shortened switching power supply's life.
Patent No. CN201120331148 discloses a heat dissipation device for a switching power supply heating device, which includes a base, a heat conduction gasket, a heat dissipation cover, a printed circuit board, and a heating device fixed and electrically connected to the printed circuit board. The heating device is a switching transformer or/and an inductor or/and a power device. The base is a square frame-shaped aluminum alloy section bar integrated piece formed by sequentially connecting a left side plate, a bottom plate and a right side plate, and circuit board slots relatively positioned at the lower part and cover body slots relatively positioned at the upper part are arranged on the left side plate and the right side plate. The printed circuit board is inserted in the slot of the base and fixed on the base by a fastener. The heat dissipation cover body is a metal plate body made of aluminum alloy or copper alloy and is provided with a convex part corresponding to the shape of the upper surface of the heating device. The lower surface of the heat conducting gasket covers the upper surface of the attached heating device; the heat dissipation cover body is covered and attached to the upper surface of the heat conduction gasket by the lower surface of the raised part of the heat dissipation cover body, and extends into the cover body slot of the base from the edge parts of the left side and the right side of the heat dissipation cover body. The utility model discloses an utilize heat conduction gasket and heat dissipation lid to dispel the heat to the device that generates heat, fail the heat dissipation function of make full use of base, heat radiation structure is complicated, the radiating effect is good inadequately.
[ summary of the invention ]
The to-be-solved technical problem of the utility model is to provide a switching power supply device's heat radiation structure that generates heat that simple structure, radiating effect are good.
In order to solve the technical problem, the utility model adopts the technical scheme that the heat dissipation structure of the switching power supply heating device comprises a metal base, a circuit board and a circuit device arranged on the circuit board, wherein the circuit device comprises a plurality of heating devices, the base comprises a bottom plate and two side plates, and the heating devices comprise a plurality of power devices and a plurality of magnetic devices; the base comprises a heat-conducting glue groove, the two side plates form two side walls of the heat-conducting glue groove, the heating device is arranged in the heat-conducting glue groove, the power device is fixed on the inner walls of the side plates, and the magnetic device is arranged in the middle of the heat-conducting glue groove; the heat-conducting glue groove is filled with heat-conducting glue.
The heat dissipation structure of the switching power supply heating device comprises two heat-conducting glue grooves, the power device comprises a switching tube and a rectifying tube, and the magnetic device comprises a transformer and an inductor; the switch tube and the transformer are arranged in the first heat-conducting glue groove, and the inductor and the rectifier tube are arranged in the second heat-conducting glue groove.
The heat dissipation structure of the switching power supply heating device comprises two end plates which are arranged in a front-back separated mode, and two ends of each end plate are connected with the two side plates respectively.
In the heat dissipation structure of the switching power supply heating device, the two side plates are disconnected between the two heat-conducting glue grooves; the circuit device comprises a plurality of capacitors, and the plurality of capacitors are arranged between the two heat-conducting glue grooves.
In the heat dissipation structure of the switching power supply heating device, the circuit board comprises a plurality of avoidance holes of the side plate, and the side plate upwards penetrates through the avoidance holes; the bottom plate of the base comprises a plurality of supporting columns of the circuit board, and the circuit board is fixed on the supporting columns.
The heat dissipation structure of the switching power supply heating device comprises a plurality of ceramic plates and a plurality of elastic pressing plates, wherein the ceramic plates are arranged between the power device and the inner walls of the side plates; the top of the elastic pressure plate is fixed on the top end of the side plate through a plurality of screws, and the lower end of the elastic pressure plate is pressed on the outer surface of the power device.
In the heat dissipation structure of the switching power supply heating device, the lower end of the end plate is inserted into the end plate fixing hole corresponding to the circuit board, and the joint of the end plate and the side plate is fixed by the fixing glue.
The utility model discloses except that power device can be directly give the curb plate on the base with the heat transfer, magnetic device and power device all can dispel the heat through whole metal base with heat transfer for metal base through the heat conduction glue, and heat radiation structure is simple, the radiating effect is good.
[ description of the drawings ]
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a top view of a heat dissipation structure of a switching power supply heating device according to an embodiment of the present invention.
Fig. 2 is a sectional view a-a in fig. 1.
[ detailed description of the invention ]
The heat dissipation structure of the switching power supply heating device of the embodiment of the present invention is shown in fig. 1 and fig. 2, and comprises a base 10 made of aluminum alloy, a circuit board 20 and a circuit device mounted on the circuit board 20,
the circuit devices include a heat generating device, a capacitor 5, and other devices. The heating device comprises a plurality of power devices 1 and a plurality of magnetic devices 4, the magnetic devices 4 comprise a plurality of transformers 4A and a plurality of inductors 4B, and the power devices 1 comprise a plurality of switching tubes and a plurality of rectifying tubes.
The base 10 includes bottom plate 11 and two blocks of curb plates 12, has two heat-conducting glue grooves 15 on the base 10, and two blocks of curb plates 12 constitute two lateral walls of two heat-conducting glue grooves 15, and between two heat-conducting glue grooves 15, curb plate 12 breaks off. Each heat-conducting glue groove 15 further comprises two end plates 13 which are arranged in a front-back separated mode, and two ends of each end plate 13 are connected with the two side plates 12 of the same heat-conducting glue groove 15 respectively. The lower end of the end plate 13 is inserted into the corresponding end plate fixing hole of the circuit board 20, and the joint of the end plate 13 and the side plate 12 is fixed by fixing glue.
The heating device is arranged in the heat conducting glue groove 15, wherein the power device 1 is fixed on the inner wall of the side plate 12, and the magnetic device 4 is arranged in the middle of the heat conducting glue groove 15. The heat conducting silica gel 16 is filled in the heat conducting silica gel groove 15.
The switching tube and the transformer 4A are arranged in the first heat-conductive glue tank 15A, and the inductor 4B and the rectifying tube are arranged in the second heat-conductive glue tank 15B. A plurality of capacitors 5 are arranged between the two thermally conductive glue baths 15.
The circuit board 20 has two avoiding holes 21 of the side plate 12, and the side plate 12 located in the middle part upwardly passes through the avoiding holes 21, so that the circuit board 20 is seated on the base 10. A plurality of circuit board support columns 14 are provided on a base plate 11 of a base 10, and a circuit board 20 is fixed to the support columns 14 by screws 7.
In order to fix the power device 1, each thermal conductive adhesive groove 15 is mounted with a plurality of ceramic plates 2 arranged between the power device 1 and the inner wall of the side plate 12 and a plurality of curved elastic pressing plates 3. The top of the elastic pressure plate 3 is fixed on the top end of the side plate 12 through a plurality of screws 6, and the lower end of the elastic pressure plate 3 presses on the outer surface of the power device 1.
The utility model discloses the heat radiation structure of switching power supply heating device of above embodiment except that power device can directly transmit the heat to the curb plate on the base, and magnetism device and power device can both transmit the heat to the aluminum alloy base through heat conduction silica gel, dispel the heat through whole aluminum alloy base, and heat radiation structure is simple; the aluminum alloy base has large heat dissipation area and good heat dissipation effect.
Claims (7)
1. A heat radiation structure of a switching power supply heating device comprises a metal base, a circuit board and a circuit device arranged on the circuit board, wherein the circuit device comprises a plurality of heating devices, the base comprises a bottom plate and two side plates, the heat radiation structure is characterized in that the heating devices comprise a plurality of power devices and a plurality of magnetic devices, the base comprises a heat-conducting glue groove, the two side plates form two side walls of the heat-conducting glue groove, the heating devices are arranged in the heat-conducting glue groove, the power devices are fixed on the inner walls of the side plates, and the magnetic devices are arranged in the middle of the heat-conducting glue groove; the heat-conducting glue groove is filled with heat-conducting glue.
2. The heat dissipation structure of a switching power supply heating device according to claim 1, comprising two heat conductive glue grooves, wherein the power device comprises a switching tube and a rectifying tube, and the magnetic device comprises a transformer and an inductor; the switch tube and the transformer are arranged in the first heat-conducting glue groove, and the inductor and the rectifier tube are arranged in the second heat-conducting glue groove.
3. The heat dissipation structure of a switching power supply heating device according to claim 2, wherein the heat conductive adhesive groove comprises two end plates arranged separately in front and rear, and both ends of the end plates are connected to the two side plates, respectively.
4. The heat dissipation structure of a switching power supply heating device according to claim 3, wherein between the two heat conductive glue grooves, the two side plates are disconnected; the circuit device comprises a plurality of capacitors, and the plurality of capacitors are arranged between the two heat-conducting glue grooves.
5. The heat dissipation structure of a switching power supply heating device according to claim 4, wherein the circuit board includes a plurality of avoidance holes of the side plate, and the side plate passes upward through the avoidance holes; the bottom plate of the base comprises a plurality of supporting columns of the circuit board, and the circuit board is fixed on the supporting columns.
6. The heat dissipation structure of a switching power supply heating device according to claim 1, comprising a plurality of ceramic plates and a plurality of elastic pressing plates, wherein the ceramic plates are arranged between the power device and the inner walls of the side plates; the top of the elastic pressure plate is fixed on the top end of the side plate through a plurality of screws, and the lower end of the elastic pressure plate is pressed on the outer surface of the power device.
7. The heat dissipation structure of a switching power supply heating device according to claim 3, wherein the lower end of the end plate is inserted into the corresponding end plate fixing hole of the circuit board, and the joint of the end plate and the side plate is fixed by fixing glue.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220456656.4U CN216852962U (en) | 2022-03-03 | 2022-03-03 | Heat radiation structure of switching power supply heating device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220456656.4U CN216852962U (en) | 2022-03-03 | 2022-03-03 | Heat radiation structure of switching power supply heating device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216852962U true CN216852962U (en) | 2022-06-28 |
Family
ID=82093317
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220456656.4U Active CN216852962U (en) | 2022-03-03 | 2022-03-03 | Heat radiation structure of switching power supply heating device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216852962U (en) |
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2022
- 2022-03-03 CN CN202220456656.4U patent/CN216852962U/en active Active
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