CN212393136U

CN212393136U - Power adapter with radiating fins

Info

Publication number: CN212393136U
Application number: CN202021395355.2U
Authority: CN
Inventors: 邱福祥; 李正中; 李经伟
Original assignee: Dongguan Dazhong Electronics Co Ltd
Current assignee: Dongguan Dazhong Electronics Co Ltd
Priority date: 2020-07-15
Filing date: 2020-07-15
Publication date: 2021-01-22
Anticipated expiration: 2030-07-15

Abstract

The utility model relates to the technical field of power adapters, in particular to a power adapter with radiating fins, which comprises a shell and a PCB arranged in the shell; the top of the PCB is provided with a first radiating fin; the bottom of the PCB is provided with a second radiating fin; locking pieces are arranged at the bottom of the first cooling fin and the top of the second cooling fin; the PCB is provided with a locking groove in a penetrating way; the locking piece is connected with the locking groove; the first radiating fin is provided with an accommodating cavity; the first radiating fin is provided with radiating holes; the second radiating fin comprises a radiating body and an insulating sheet covering the top of the radiating body; the top of the insulating sheet is provided with a heat conducting sheet; the heat conducting fins are abutted against the bottom of the PCB. The utility model discloses a set up first fin and second fin respectively in the top and the bottom of PCB board to can distribute away the heat in the source that generates heat on the PCB board effectively, prevent that power adapter from damaging because of high temperature.

Description

Power adapter with radiating fins

Technical Field

The utility model relates to a power adapter technical field, concretely relates to power adapter with fin.

Background

When the power adapter works at present, a part of electronic components can generate more or less redundant heat energy, the temperature of the electronic components in the product is increased, and when the temperature is increased to a certain height and exceeds the limit temperature of the electronic components, the components are damaged due to overhigh temperature, so that the whole product is scrapped. Therefore, a heat dissipation device is needed to conduct away heat energy in the electronic component which generates heat, wherein the heat dissipation plate is widely applied to power supplies and adapters; the existing power adapter has the problem of insufficient heat dissipation effect.

SUMMERY OF THE UTILITY MODEL

The utility model aims at the above-mentioned not enough among the prior art, provide a power adapter with fin.

The purpose of the utility model is realized through the following technical scheme: a power adapter with radiating fins comprises a shell and a PCB arranged in the shell; the top of the PCB is provided with a first radiating fin; the bottom of the PCB is provided with a second radiating fin; locking pieces are arranged at the bottom of the first cooling fin and the top of the second cooling fin; the PCB is provided with a locking groove in a penetrating way; the locking piece is connected with the locking groove;

the first radiating fin is provided with an accommodating cavity; the first radiating fin is provided with a radiating hole communicated with the accommodating cavity; the second radiating fin comprises a radiating body and an insulating sheet covering the top of the radiating body; the top of the insulating sheet is provided with a heat conducting sheet; the heat conducting fins are abutted against the bottom of the PCB.

The utility model is further provided that the shell comprises a lower cover and an upper cover which is detachably connected with the lower cover; the upper cover is provided with a sealing ring.

The utility model is further provided with the heat dissipation holes arranged at the top of the first heat dissipation fin; and screw holes are formed in the side parts of the first radiating fins.

The utility model is further provided with that the number of the first radiating fins is two; two first radiating fins are respectively arranged on two sides of the PCB.

The utility model discloses further set up as, the material of first fin is aluminium sheet metal.

The utility model is further arranged that the insulating sheet is made of plastic; the heat conducting fins are made of silica gel.

The utility model is further provided that the locking piece comprises a pin body; a first elastic arm and a second elastic arm which are oppositely arranged extend from one end of the pin body; a first clamping block is arranged on one side, away from the second elastic arm, of the first elastic arm; and a second clamping block is arranged on one side of the second elastic arm far away from the first elastic arm.

The utility model is further arranged that the pin body is provided with riveting holes; the pin body is riveted with the first radiating fin and the second radiating fin through the riveting hole.

The utility model has the advantages that: the utility model discloses a set up first fin and second fin respectively in the top and the bottom of PCB board to can distribute away the heat in the source that generates heat on the PCB board effectively, prevent that power adapter from damaging because of high temperature.

Drawings

The invention is further described with the aid of the accompanying drawings, in which, however, the embodiments do not constitute any limitation to the invention, and for a person skilled in the art, other drawings can be derived from the following drawings without inventive effort.

Fig. 1 is a schematic structural diagram of the present invention;

fig. 2 is an exploded view of the present invention;

fig. 3 is a schematic structural diagram of a first heat sink of the present invention;

fig. 4 is a schematic structural view of a second heat sink of the present invention;

fig. 5 is a schematic structural view of another view angle of the second heat sink of the present invention;

FIG. 6 is a schematic view of the locking member of the present invention;

wherein: 11. an upper cover; 12. a lower cover; 2. a PCB board; 3. a first heat sink; 31. an accommodating cavity; 32. heat dissipation holes; 33. a screw hole; 4. a second heat sink; 41. a heat dissipation body; 42. an insulating sheet; 43. a heat conductive sheet; 5. a locking member; 6. a pin body; 61. a first resilient arm; 62. a second resilient arm; 71. a first clamping block; 72. a second fixture block; 8. a seal ring; 9. and riveting the holes.

Detailed Description

The invention will be further described with reference to the following examples.

As can be seen from fig. 1 to 6, the power adapter with heat sink in this embodiment includes a housing and a PCB 2 disposed in the housing; the top of the PCB 2 is provided with a first radiating fin 3; the bottom of the PCB 2 is provided with a second radiating fin 4; locking pieces 5 are arranged at the bottom of the first radiating fin 3 and the top of the second radiating fin 4; the PCB 2 is provided with a locking groove in a penetrating way; the locking piece 5 is connected with the locking groove; wherein the locking groove is not shown;

the first radiating fin 3 is provided with an accommodating cavity 31; the first radiating fin 3 is provided with a radiating hole 32 communicated with the accommodating cavity 31; the second heat sink 4 includes a heat dissipating body 41 and an insulating sheet 42 covering the top of the heat dissipating body 41; the top of the insulating sheet 42 is provided with a heat conducting sheet 43; the heat-conducting fin 43 abuts against the bottom of the PCB board 2.

Specifically, in the power adapter with heat dissipation fins according to the embodiment, the PCB 2, the first heat dissipation fin 3 and the second heat dissipation fin 4 are all disposed in the housing, and the first heat dissipation fin 3 is locked in the locking groove by the locking member 5, so that the first heat dissipation fin 3 is fixed at the top of the PCB 2, the heat source on the PCB 2 is placed in the accommodating cavity 31, and the heat source on the PCB 2 is tightly attached to the inner side of the first heat dissipation fin 3, thereby achieving a heat dissipation effect, and in addition, the heat dissipation effect of the first heat dissipation fin 3 can be increased by providing the heat dissipation holes 32 through the first heat dissipation fin 3;

secondly, second fin 4 passes through retaining member 5 locking in the locking groove to make second fin 4 fix the bottom at PCB board 2, thereby heat conduction piece 43 pastes closely with the source of generating heat on PCB board 2 and transmits the heat to heat dissipation body 41 and plays radiating effect, in addition, because the bottom welding of PCB board 2 has electronic component's pin, so in order to prevent that second fin 4 and electronic component from taking place the condition of short circuit, so it has insulating piece 42 to cover at the top of heat dissipation body 41.

In the power adapter with heat sink of this embodiment, the housing includes a lower cover 12 and an upper cover 11 detachably connected to the lower cover 12; the upper cover 11 is provided with a sealing ring 8. The arrangement is convenient for disassembly, assembly and maintenance of the shell; the sealing ring 8 plays a waterproof role.

In the power adapter with heat dissipation fins of this embodiment, the heat dissipation holes 32 are disposed at the top of the first heat dissipation fin 3; the arrangement can improve the heat dissipation effect of the first heat dissipation sheet 3; the side of the first heat sink 3 is provided with a screw hole 33. The first heat sink 3 and the heat source on the PCB 2 can be fixed and attached tightly by the screw hole 33.

In the power adapter with the heat dissipation fins in this embodiment, the number of the first heat dissipation fins 3 is two; the two first radiating fins 3 are respectively arranged on two sides of the PCB 2. The arrangement can further improve the heat dissipation effect of the power adapter.

In the power adapter with the heat sink in this embodiment, the first heat sink 3 is made of a metal aluminum plate. The arrangement can further improve the heat dissipation effect of the power adapter.

In the power adapter with heat dissipation fins of this embodiment, the insulating sheet 42 is made of plastic; the heat conducting sheet 43 is made of silica gel. The above arrangement can improve the heat conduction effect of the heat conduction sheet 43.

In the power adapter with heat sink of the present embodiment, the locking member 5 includes a pin body 6; a first elastic arm 61 and a second elastic arm 62 which are oppositely arranged extend from one end of the pin body 6; a first clamping block 71 is arranged on one side of the first elastic arm 61 away from the second elastic arm 62; a second latch 72 is disposed on a side of the second elastic arm 62 away from the first elastic arm 61.

Specifically, through setting up first elastic arm 61 and second elastic arm 62 for locking member 5 inserts very smoothly at the in-process that inserts the locking groove of PCB board 2, inserts the back and kick-backs through first fixture block 71 of first elastic arm 61 and second fixture block 72 of second elastic arm 62, thereby first fixture block 71 and second fixture block 72 can firmly detain the locking groove of PCB board 2, and make first fin 3 of whole product in the in-process of production and second fin 4 can not drop the aversion.

In the power adapter with the heat sink of this embodiment, the pin body 6 is provided with the riveting hole 9; the pin body 6 is riveted with the first heat sink 3 and the second heat sink 4 through the riveting holes 9. The arrangement is convenient for production and manufacture.

It should be finally noted that the above embodiments are only intended to illustrate the technical solutions of the present invention, and not to limit the scope of the present invention, and although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present invention can be modified or replaced with equivalents without departing from the spirit and scope of the technical solutions of the present invention.

Claims

1. The utility model provides a power adapter with fin which characterized in that: comprises a shell and a PCB (2) arranged in the shell; the top of the PCB (2) is provided with a first radiating fin (3); the bottom of the PCB (2) is provided with a second radiating fin (4); locking pieces (5) are arranged at the bottom of the first cooling fin (3) and the top of the second cooling fin (4); the PCB (2) is provided with a locking groove in a penetrating way; the locking piece (5) is connected with the locking groove;

the first radiating fin (3) is provided with an accommodating cavity (31); the first radiating fin (3) is provided with a radiating hole (32) communicated with the accommodating cavity (31); the second radiating fin (4) comprises a radiating body (41) and an insulating sheet (42) covering the top of the radiating body (41); the top of the insulating sheet (42) is provided with a heat conducting sheet (43); the heat conducting sheet (43) is abutted against the bottom of the PCB (2).

2. The power adapter with heat sink of claim 1, wherein: the shell comprises a lower cover (12) and an upper cover (11) detachably connected with the lower cover (12); the upper cover (11) is provided with a sealing ring (8).

3. The power adapter with heat sink of claim 1, wherein: the heat dissipation holes (32) are formed in the top of the first heat dissipation fin (3); and screw holes (33) are formed in the side parts of the first radiating fins (3).

4. The power adapter with heat sink of claim 1, wherein: the number of the first radiating fins (3) is two; the two first radiating fins (3) are respectively arranged on two sides of the PCB (2).

5. The power adapter with heat sink of claim 1, wherein: the first radiating fin (3) is made of a metal aluminum plate.

6. The power adapter with heat sink of claim 1, wherein: the insulating sheet (42) is made of plastic; the heat conducting fins (43) are made of silica gel.

7. The power adapter with heat sink of claim 1, wherein: the locking piece (5) comprises a pin body (6); a first elastic arm (61) and a second elastic arm (62) which are oppositely arranged extend from one end of the pin body (6); a first clamping block (71) is arranged on one side, away from the second elastic arm (62), of the first elastic arm (61); and a second clamping block (72) is arranged on one side, away from the first elastic arm (61), of the second elastic arm (62).

8. The power adapter with heat sink of claim 7, wherein: the pin body (6) is provided with a riveting hole (9); the pin body (6) is riveted with the first radiating fin (3) and the second radiating fin (4) through riveting holes (9).