CN215345560U - Quick charging source heat radiation structure with insulation protection - Google Patents
Quick charging source heat radiation structure with insulation protection Download PDFInfo
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- CN215345560U CN215345560U CN202120571561.2U CN202120571561U CN215345560U CN 215345560 U CN215345560 U CN 215345560U CN 202120571561 U CN202120571561 U CN 202120571561U CN 215345560 U CN215345560 U CN 215345560U
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- circuit board
- heat dissipation
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- power circuit
- insulation
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Abstract
The utility model discloses a quick charge power supply heat dissipation structure with insulation protection, which comprises a shell, a power circuit board and an isolation heat dissipation piece, wherein the power circuit board and the isolation heat dissipation piece are arranged in the shell; the isolation heat dissipation piece comprises an insulation piece, a metal heat dissipation piece fixed on the bottom surface of the insulation piece and at least two insulation support legs connected with the top surface of the insulation piece; the power circuit board is provided with a power circuit, and a plurality of chips with high heat emission of the power circuit are welded on the bottom surface of the power circuit board; the power supply circuit board is also provided with jacks corresponding to the insulation support legs of the isolation and heat dissipation part, and the insulation support legs of the isolation and heat dissipation part respectively penetrate through the jacks of the power supply circuit board from bottom to top. The utility model can improve the heat dissipation capability of the quick charge power supply and reduce the volume of the quick charge power supply by arranging the isolation heat dissipation piece.
Description
Technical Field
The utility model relates to the field of power adapters, in particular to a quick charging power supply heat dissipation structure with insulation protection.
Background
At present, in order to improve the charging efficiency, the output power of a quick charging power supply is increased, but the heat productivity of the quick charging power supply is increased, and the structural design of the existing quick charging power supply has defects, so that the shell of a quick-release power supply has the defect of overhigh local temperature; in addition, in order to ensure that the creepage distance of the electronic components meets the safety requirements, the internal electronic components of the conventional quick charging source are loosely arranged, so that the overall volume of the quick charging source is large.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a quick charge power supply heat dissipation structure with insulation protection, which can effectively reduce the temperature of a shell and is beneficial to reducing the volume of the quick charge power supply.
In order to achieve the above purpose, the solution of the utility model is:
a quick charge power supply heat radiation structure with insulation protection comprises a shell, a power supply circuit board and an isolation heat radiation piece; the isolation heat dissipation piece comprises an insulation piece, a metal heat dissipation piece fixed on the bottom surface of the insulation piece and at least two insulation support legs connected with the top surface of the insulation piece; the power circuit board is provided with a power circuit, and a plurality of chips with high heat emission of the power circuit are welded on the bottom surface of the power circuit board; the power supply circuit board is also provided with jacks corresponding to the insulation support legs of the isolation and heat dissipation part, and the insulation support legs of the isolation and heat dissipation part respectively penetrate through the jacks of the power supply circuit board from bottom to top; the shell wraps the isolation heat dissipation part and the power circuit board.
And each insulating support leg of the isolating and radiating piece is connected with the power supply circuit board through glue.
And the side edge of the insulating sheet of the isolating and radiating piece is connected with the shell in a welding way.
The bottom surface of the insulating sheet for isolating the heat radiating piece is provided with a positioning caulking groove, the metal heat radiating piece is embedded in the positioning caulking groove, and the metal heat radiating piece is connected with the insulating sheet through glue.
The insulating piece top surface of keeping apart the radiating piece is equipped with at least one and supports the brace table that leans on power supply circuit board.
After adopting the scheme, the utility model has the following characteristics:
1. the metal radiating fins of the isolating and radiating piece can receive heat generated by the power circuit board and the power circuit arranged on the power circuit board, so as to achieve the effect of adjusting the heat distribution in the shell, so that the heat radiated to the shell by the power circuit board and the power circuit arranged on the power circuit board is uniformly distributed, and the heat on the surface of the shell is uniformly distributed to reduce the temperature of the shell;
2. the insulating sheet of the isolating and radiating piece can improve the creepage distance between the metal radiating sheet and the power supply circuit board, so that the metal radiating sheet is as close to the power supply circuit board as possible on the premise of meeting the safety creepage distance, heat generated by the power supply circuit board and the power supply circuit arranged on the power supply circuit board is better conducted to the metal radiating sheet, and the heat radiated to the shell by the power supply circuit board and the power supply circuit arranged on the power supply circuit board is more uniformly distributed;
3. according to the power circuit, the plurality of high-heating chips are welded on the bottom surface of the power circuit board, and the insulating sheet and the metal radiating fins are arranged below the power circuit board, so that heat generated by the plurality of high-heating chips of the power circuit can be better conducted to the metal radiating fins;
4. the insulating support legs of the isolating and radiating piece respectively penetrate through the jacks of the power circuit boards from bottom to top, and can extend into the space between the electronic components with the creepage distance requirement of the power circuit to improve the creepage distance between the electronic components with the creepage distance requirement, so that the electronic components of the power circuit can be arranged on the power circuit boards as tightly as possible under the condition of meeting the creepage distance requirement of safety regulations, and the volume of a quick-charging power supply is reduced.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of a partial structure of the present invention 1;
FIG. 3 is a partial schematic view of the present invention in FIG. 2;
FIG. 4 is an exploded view of the present invention 1;
fig. 5 is an exploded view of the structure of the present invention, fig. 2.
Description of reference numerals:
a housing 1, a housing body 11, a base 12, a plug pin 121,
the power supply circuit board 2, the jack 21,
an insulating heat sink 3, an insulating sheet 31, a positioning caulking groove 311, a support table 312, a metal heat sink 32, an insulating leg 33,
the circuit comprises a chip 4, a transformer 5, a TPYE-C interface 6, a first alternating current input end 71, a second alternating current input end 72, a fuse 8 and an electrolytic capacitor 9.
Detailed Description
In order to further explain the technical solution of the present invention, the present invention is explained in detail by the following specific examples.
As shown in fig. 1 to 5, the present invention discloses a fast charging power supply heat dissipation structure with insulation protection, which includes a housing 1, a power circuit board 2 and an isolation heat dissipation member 3; the insulating heat sink 3 comprises an insulating sheet 31, a metal heat sink 32 fixed on the bottom surface of the insulating sheet 31, and at least two insulating legs 33 connected with the top surface of the insulating sheet 31, wherein each insulating leg 33 and the insulating sheet 31 can be integrally formed; the power circuit board 2 is provided with a power circuit, a plurality of chips 4 with high heat emission of the power circuit are welded on the bottom surface of the power circuit board 2, the chips 4 can be power control ICs, MOS tubes and bridge stacks, and the chips 4 are main heat emission sources of the power circuit; the power circuit board 2 is also provided with jacks 21 corresponding to the insulation legs 33 of the isolation and heat dissipation member 3, and the insulation legs 33 of the isolation and heat dissipation member 3 respectively penetrate through the jacks 21 of the power circuit board 2 from bottom to top; the shell 1 wraps the isolation heat dissipation part 3 and the power circuit board 2, the shell 1 can be formed by splicing a shell main body 11 and a base 12, a plug pin 121 electrically connected with the power circuit is arranged on the base 12, the plug pin 121 is used for inputting external alternating current into the power circuit, and the power circuit rectifies and reduces the voltage of the input alternating current to form direct current output.
In the utility model, each insulating support leg 33 of the isolating and radiating element 3 can be connected with the power circuit board 2 through glue, so that the isolating and radiating element 3 can be prevented from shaking in the shell 1; in addition, the side edges of the insulating sheet 31 of the insulating heat sink 3 may be welded to the base 12 of the housing 1 by ultrasonic welding, so that the insulating heat sink 3 is prevented from wobbling in the housing 1.
In the present invention, the bottom surface of the insulating sheet 31 of the isolating and heat dissipating member 3 is provided with a positioning caulking groove 311, the metal heat dissipating fin 32 is embedded in the positioning caulking groove 311, and the metal heat dissipating fin 32 is connected to the insulating sheet 31 through glue, and the positioning caulking groove 311 can play a role in positioning the metal heat dissipating fin 32, so that the metal heat dissipating fin 32 can be accurately mounted on the insulating sheet 31.
In the utility model, the top surface of the insulating sheet 31 of the isolating and heat dissipating member 3 may be provided with at least one supporting table 312 abutting against the power circuit board 2, and the supporting table 312 may form a flow guiding space between the insulating sheet 31 and the power circuit board 2, so that heat generated by the plurality of high heat generating chips 4 welded to the bottom surface of the power circuit board 2 by the power circuit is better transferred to the metal heat dissipating sheet 32 through air.
In conclusion, the utility model has the following characteristics:
1. the metal radiating fins 32 of the isolating and radiating element 3 can receive heat generated by the power circuit board 2 and a power circuit arranged on the power circuit board 2, so as to achieve the effect of adjusting the heat distribution in the shell 1, so that the heat radiated to the shell 1 by the power circuit board 2 and the power circuit arranged on the power circuit board 2 is uniformly distributed, and the surface heat of the shell 1 is uniformly distributed to reduce the temperature of the shell 1; through tests, the surface temperature of the shell 1 is 69.2 ℃ when the isolating and radiating element 3 is not provided with the metal radiating fins 32, while the surface temperature of the shell 1 is 51.5 ℃ when the isolating and radiating element 3 is provided with the metal radiating fins 32, so that the temperature of the shell 1 is effectively reduced through the metal radiating fins 32;
2. the insulating sheet 31 of the isolating and radiating element 3 can improve the creepage distance between the metal radiating fin 32 and the power circuit board 2, so that the metal radiating fin 32 is as close to the power circuit board 2 as possible on the premise of meeting the safety creepage distance, heat generated by the power circuit board 2 and a power circuit arranged on the power circuit board is better conducted to the metal radiating fin 32, and the heat radiated to the shell 1 by the power circuit board 2 and the power circuit arranged on the power circuit board 2 is more uniformly distributed;
3. according to the utility model, the plurality of high-heat-generating chips 4 of the power circuit are welded on the bottom surface of the power circuit board 2, and the insulating sheet 31 and the metal heat radiating fins 32 are arranged below the power circuit board 2, so that heat generated by the plurality of high-heat-generating chips 4 of the power circuit can be better conducted to the metal heat radiating fins 32;
4. each insulating support leg 33 of the isolating and radiating element 3 respectively penetrates through the jack 21 of each power supply circuit board 2 from bottom to top, and each insulating support leg 33 can extend into the space between the electronic components with the creepage distance requirement of the power supply circuit so as to improve the creepage distance between the electronic components with the creepage distance requirement, so that each electronic component of the power supply circuit can be arranged on the power supply circuit board 2 as tightly as possible under the condition of meeting the creepage distance requirement of safety regulations, and the volume of a quick charging power supply is favorably reduced; in the present invention, the isolating and heat dissipating member 3 may have three insulating legs 33, a first insulating leg 33 may be inserted between the transformer 5 and the TPYE-C interface 6 of the power circuit, a second insulating leg 33 may be inserted between the first ac input terminal 71 and the fuse 8 of the power circuit, and a third insulating leg 33 may be inserted between the second ac input terminal 72 and the electrolytic capacitor 9 of the power circuit.
The above embodiments and drawings are not intended to limit the form and style of the present invention, and any suitable changes or modifications thereof by those skilled in the art should be considered as not departing from the scope of the present invention.
Claims (5)
1. The utility model provides a take insulation protection's quick charging source heat radiation structure which characterized in that: comprises a shell, a power circuit board and an isolation heat sink;
the isolation heat dissipation piece comprises an insulation piece, a metal heat dissipation piece fixed on the bottom surface of the insulation piece and at least two insulation support legs connected with the top surface of the insulation piece;
the power circuit board is provided with a power circuit, and a plurality of chips with high heat emission of the power circuit are welded on the bottom surface of the power circuit board; the power supply circuit board is also provided with jacks corresponding to the insulation support legs of the isolation and heat dissipation part, and the insulation support legs of the isolation and heat dissipation part respectively penetrate through the jacks of the power supply circuit board from bottom to top;
the shell wraps the isolation heat dissipation part and the power circuit board.
2. The fast charging source heat dissipation structure with insulation protection of claim 1, wherein: and each insulating support leg of the isolating and radiating piece is connected with the power supply circuit board through glue.
3. A fast charging source heat dissipation structure with insulation protection as claimed in claim 1 or 2, wherein: and the side edge of the insulating sheet of the isolating and radiating piece is connected with the shell in a welding way.
4. The fast charging source heat dissipation structure with insulation protection of claim 1, wherein: the bottom surface of the insulating sheet for isolating the heat radiating piece is provided with a positioning caulking groove, the metal heat radiating piece is embedded in the positioning caulking groove, and the metal heat radiating piece is connected with the insulating sheet through glue.
5. The fast charging source heat dissipation structure with insulation protection of claim 1, wherein: the insulating piece top surface of keeping apart the radiating piece is equipped with at least one and supports the brace table that leans on power supply circuit board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120571561.2U CN215345560U (en) | 2021-03-19 | 2021-03-19 | Quick charging source heat radiation structure with insulation protection |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120571561.2U CN215345560U (en) | 2021-03-19 | 2021-03-19 | Quick charging source heat radiation structure with insulation protection |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215345560U true CN215345560U (en) | 2021-12-28 |
Family
ID=79584100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120571561.2U Active CN215345560U (en) | 2021-03-19 | 2021-03-19 | Quick charging source heat radiation structure with insulation protection |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215345560U (en) |
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2021
- 2021-03-19 CN CN202120571561.2U patent/CN215345560U/en active Active
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