CN210641227U - Circuit board heat radiation structure of power adapter - Google Patents
Circuit board heat radiation structure of power adapter Download PDFInfo
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- CN210641227U CN210641227U CN201921196552.9U CN201921196552U CN210641227U CN 210641227 U CN210641227 U CN 210641227U CN 201921196552 U CN201921196552 U CN 201921196552U CN 210641227 U CN210641227 U CN 210641227U
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- circuit board
- radiating fin
- fin
- power adapter
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Abstract
The utility model discloses a circuit board heat radiation structure of a power adapter, which comprises a shell, and an upper heat radiation fin, a circuit board, an insulation sheet and a lower heat radiation fin which are arranged in the shell; the upper surface of the circuit board is provided with an electrical element, the lower radiating fin is arranged on the lower surface of the circuit board, and the insulating sheet is positioned between the circuit board and the lower radiating fin and isolates the electrical element from contacting with the lower radiating fin; the upper radiating fin is buckled and matched with the lower radiating fin, and the upper radiating fin is matched with the upper surface of the electrical component; the surface of the upper/lower radiating fins is attached to the shell. The utility model discloses a surface sets up fin and lower fin respectively about the circuit board, and electrical components's heat improves the radiating effect via last/lower fin, 5 conduction of casing or radiation to the air to the high temperature in avoiding power adapter use, thereby prolongs the life of product. The utility model discloses can effectively utilize the inside finite space of power adapter casing, with heat radiating area design maximize, make electrical components's radiating effect best.
Description
Technical Field
The utility model relates to an electrical apparatus field especially indicates a power adapter's circuit board heat radiation structure.
Background
The power adapter is a power supply conversion device of small portable electronic equipment and electronic appliances, generally comprises components such as a shell, a transformer, an inductor, a capacitor, a control IC (integrated circuit), a PCB (printed circuit board) and the like, and the working principle of the power adapter is that alternating current input is converted into direct current output; according to the connection mode, the device can be divided into a wall-inserting type and a desktop type. The intelligent anti-theft device is widely matched with security cameras, set top boxes, routers, light bars, massage instruments and other equipment.
In the working process of the power adapter, electrical elements on the circuit board generate heat, so that the temperature of the circuit board rises, and if no good heat dissipation design is adopted, the performance of the power adapter is influenced by overhigh temperature, even the electrical elements on the circuit board are burnt out, and the service life of the power adapter is influenced. The conventional heat dissipation method of the power adapter generally increases the contact area between the circuit board and the air to improve the heat dissipation effect. Because the internal space of the power adapter shell is limited, how to better utilize the limited space to improve the heat dissipation effect of the circuit board becomes a subject to be solved in the industry.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a power adapter's circuit board heat radiation structure can increase the area of contact of circuit board and air to improve the radiating effect, thereby prolong the life of product.
In order to achieve the above purpose, the solution of the present invention is:
a circuit board heat radiation structure of a power adapter comprises an upper heat radiation fin, a circuit board, an insulation sheet, a lower heat radiation fin and a shell of the power adapter, wherein the upper heat radiation fin, the circuit board, the insulation sheet and the lower heat radiation fin are sequentially stacked; the upper surface of the circuit board is provided with a plurality of electrical components, the lower radiating fin is arranged on the lower surface of the circuit board, and the insulating sheet is positioned between the circuit board and the lower radiating fin and isolates the pins of the electrical components from contacting the lower radiating fin; the periphery of the lower radiating fin protrudes towards the circuit board to form a plurality of protruding parts, through holes are formed at positions of the insulating sheets corresponding to the protruding parts, positioning holes are formed at positions of the circuit board corresponding to the protruding parts, and the protruding parts penetrate through the through holes and are matched with the positioning holes; the upper radiating fin is matched with the lower radiating fin in a buckling manner, and the upper radiating fin is matched with the upper surface of the electrical component; the casing is formed with the holding chamber, goes up fin, circuit board, insulating piece and lower fin cooperation in the holding chamber, and goes up the fin and laminate respectively at the inner wall in holding chamber with the surface of lower fin.
The protruding part is fixed in the positioning hole through soldering tin.
The periphery of the upper radiating fin is provided with an upper buckling part, the periphery of the lower radiating fin is provided with a lower buckling part, and the upper buckling part is buckled and matched on the lower buckling part.
The upper buckling part is provided with a plurality of buckles, the lower buckling part is provided with a clamping groove corresponding to the buckles, and the buckles are buckled and matched in the clamping grooves.
The upper radiating fin and the lower radiating fin are made of metal materials.
After the structure of the oil adding device is adopted, the utility model discloses a surface sets up fin and lower fin respectively about power adapter's circuit board, and electrical components's heat conduction is last fin and lower fin, because both and casing laminating, the heat improves the radiating effect in the surface conduction or the radiation air through the casing at last to avoid power adapter high temperature in the use, thereby prolong the life of product. Through the design that the upper radiating fin and the lower radiating fin are arranged to cover the circuit board, the limited space in the shell of the power adapter can be effectively utilized, the design of the radiating area is maximized, and the radiating effect of the electrical appliance element is optimal.
Furthermore, the utility model discloses simple structure easily installs, goes up easy dismounting between fin and the lower fin, is difficult to wearing and tearing, electrical components collides with.
Drawings
FIG. 1 is a perspective view of an embodiment of the present invention;
FIG. 2 is an exploded view of an embodiment of the present invention;
3 FIG. 3 3 3 is 3 a 3 cross 3- 3 sectional 3 view 3 taken 3 at 3 A 3- 3 A 3 of 3 FIG. 31 3; 3
Fig. 4 is an enlarged view at B in fig. 3.
The reference numbers illustrate: an upper heat sink 1; an upper fastening part 11; a buckle 111; a circuit board 2; an electric component 21; positioning holes 22; an insulating sheet 3; a through hole 31; a lower heat sink 4; the protruding portion 41; a lower fastening portion 42; a card slot 421; a housing 5; accommodating chamber 51.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following embodiments.
Referring to fig. 1 to 4, the present invention relates to a circuit board heat dissipation structure of a power adapter, which includes an upper heat sink 1, a circuit board 2, an insulating sheet 3, and a lower heat sink 4 stacked in sequence, and a housing 5 of the power adapter.
The upper surface of the circuit board 2 is provided with a plurality of electrical components 21, the lower radiating fin 4 is arranged on the lower surface of the circuit board 2, and the insulating sheet 3 is positioned between the circuit board 2 and the lower radiating fin 4 and isolates the pins of the electrical components 21 from contacting with the lower radiating fin 4.
The periphery of above-mentioned lower fin 4 is formed with a plurality of protruding portion 41 to circuit board 2 protrusion, and the position that insulating piece 3 corresponds protruding portion 41 is formed with through-hole 31, and circuit board 2 corresponds the position of protruding portion 41 and is formed with locating hole 22, and protruding portion 41 wears to locate through-hole 31 and cooperates in locating hole 22 to realize circuit board 2, insulating piece 3 and the spacing cooperation of lower fin 4, prevent relative movement between the three, improve structural stability.
The protruding portion 41 is fixed to the positioning hole 22 by solder to prevent the protruding portion 41 from being removed from the positioning hole 22, which may cause the insulating sheet 3 and/or the lower heat sink 4 to be detached from the circuit board 2.
The upper heat sink 1 and the lower heat sink 4 are buckled and matched, and the upper heat sink 1 is matched on the upper surface of the electrical component 21. The upper heat sink 1 has an upper fastening portion 11 formed on its periphery, the lower heat sink 4 has a lower fastening portion 42 formed on its periphery, and the upper fastening portion 11 is fastened to the lower fastening portion 42. The upper fastening portion 11 is formed with a plurality of fasteners 111, the lower fastening portion 42 is formed with a slot 421 corresponding to the position of the fastener 111, and the fasteners 111 are fastened and fitted in the slot 421 to realize the connection between the upper fastening portion 11 and the lower fastening portion 42, i.e. to complete the installation between the upper heat sink 1 and the lower heat sink 4.
The upper radiating fin 1 and the lower radiating fin 4 are made of metal materials and are easy to conduct heat.
The housing 5 is formed with a receiving cavity 51, the upper heat sink 1, the circuit board 2, the insulating sheet 3 and the lower heat sink 4 are fitted in the receiving cavity 51, and the surfaces of the upper heat sink 1 and the lower heat sink 4 are respectively attached to the inner wall of the receiving cavity 51.
Through the structure, the utility model discloses a surface sets up fin 1 and lower fin 4 respectively about power adapter's circuit board 2, and electrical components 21's heat conduction is last fin 1 and lower fin 4, because both are laminated with casing 5's inner wall, and the heat improves the radiating effect at last through the surface conduction of casing or radiation to the air to avoid power adapter high temperature in the use, thereby prolong the life of product. By arranging the upper heat sink 1 and the lower heat sink 4 to cover the circuit board 2, the limited space inside the power adapter housing 5 can be effectively utilized, the heat dissipation area can be designed to be maximized, and the heat dissipation effect of the electrical component 21 can be optimized.
Furthermore, the utility model discloses simple structure easily installs, goes up easy dismounting between fin 1 and the lower fin 4, is difficult to wearing and tearing, electrical components 21 collides with.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications made by those skilled in the art should not be construed as departing from the scope of the present invention.
Claims (5)
1. The utility model provides a power adapter's circuit board heat radiation structure which characterized in that: the power adapter comprises an upper radiating fin, a circuit board, an insulating sheet, a lower radiating fin and a shell of the power adapter, wherein the upper radiating fin, the circuit board, the insulating sheet and the lower radiating fin are sequentially stacked; the upper surface of the circuit board is provided with a plurality of electrical components, the lower radiating fin is arranged on the lower surface of the circuit board, and the insulating sheet is positioned between the circuit board and the lower radiating fin and isolates the pins of the electrical components from contacting the lower radiating fin; the periphery of the lower radiating fin protrudes towards the circuit board to form a plurality of protruding parts, through holes are formed at positions of the insulating sheets corresponding to the protruding parts, positioning holes are formed at positions of the circuit board corresponding to the protruding parts, and the protruding parts penetrate through the through holes and are matched with the positioning holes; the upper radiating fin is matched with the lower radiating fin in a buckling manner, and the upper radiating fin is matched with the upper surface of the electrical component; the casing is formed with the holding chamber, goes up fin, circuit board, insulating piece and lower fin cooperation in the holding chamber, and goes up the fin and laminate respectively at the inner wall in holding chamber with the surface of lower fin.
2. The circuit board heat dissipation structure of a power adapter as defined in claim 1, wherein: the protruding part is fixed in the positioning hole through soldering tin.
3. The circuit board heat dissipation structure of a power adapter as defined in claim 1, wherein: the periphery of the upper radiating fin is provided with an upper buckling part, the periphery of the lower radiating fin is provided with a lower buckling part, and the upper buckling part is buckled and matched on the lower buckling part.
4. The circuit board heat dissipation structure of a power adapter as defined in claim 3, wherein: the upper buckling part is provided with a plurality of buckles, the lower buckling part is provided with a clamping groove corresponding to the buckles, and the buckles are buckled and matched in the clamping grooves.
5. The circuit board heat dissipation structure of a power adapter as recited in any one of claims 1 to 4, wherein: the upper radiating fin and the lower radiating fin are made of metal materials.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921196552.9U CN210641227U (en) | 2019-07-26 | 2019-07-26 | Circuit board heat radiation structure of power adapter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921196552.9U CN210641227U (en) | 2019-07-26 | 2019-07-26 | Circuit board heat radiation structure of power adapter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210641227U true CN210641227U (en) | 2020-05-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921196552.9U Active CN210641227U (en) | 2019-07-26 | 2019-07-26 | Circuit board heat radiation structure of power adapter |
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| Country | Link |
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| CN (1) | CN210641227U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111698891A (en) * | 2020-07-15 | 2020-09-22 | 东莞市大忠电子有限公司 | Power adapter with radiating fins |
-
2019
- 2019-07-26 CN CN201921196552.9U patent/CN210641227U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111698891A (en) * | 2020-07-15 | 2020-09-22 | 东莞市大忠电子有限公司 | Power adapter with radiating fins |
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