CN213817600U

CN213817600U - Arc power adapter

Info

Publication number: CN213817600U
Application number: CN202022925005.9U
Authority: CN
Inventors: 曾浩平
Original assignee: Dongguan Yourun Photoelectric Technology Co ltd
Current assignee: Dongguan Yourun Photoelectric Technology Co ltd
Priority date: 2020-12-09
Filing date: 2020-12-09
Publication date: 2021-07-27
Anticipated expiration: 2030-12-09

Abstract

The utility model discloses an arc power adapter, which comprises a bottom shell, an upper cover and a PCB board; the bottom shell is provided with a front plate, a rear plate, a left plate and a right plate, an installation cavity is surrounded by the front plate, the rear plate, the left plate and the right plate, and the middle part of the rear plate is protruded backwards to form an arc surface; the PCB is arranged in the mounting cavity and provided with a transformer and a plurality of capacitors, and the transformer is arranged in the middle of the PCB; the upper cover is detachably arranged on the bottom shell, and is provided with a heat dissipation metal frame which covers the peripheral side face of the transformer. Constitute the arcwall face with the back plate middle part is backward protruding, the transformer install just can utilize the arcwall face to increase the clearance between transformer and the drain pan behind the middle part of PCB board, combine the setting of heat dissipation metal frame, can derive the produced heat of transformer through heat dissipation metal frame, upper cover effectively for the possibility of heat gathering in the installation cavity is little, can not influence electronic components's normal use, and the reliability is better.

Description

Arc power adapter

Technical Field

The utility model belongs to the technical field of the adapter and specifically relates to indicate an arc power adapter.

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. However, as the overall structure of the power adapter becomes smaller and smaller, heat generated by the transformer in a small space is easily accumulated in the housing, resulting in high temperature inside the housing, which affects the normal use of the rest of the electronic components.

SUMMERY OF THE UTILITY MODEL

In view of this, the present invention is directed to the deficiency of the prior art, and the main objective of the present invention is to provide an arc-shaped power adapter, which has a reasonable structure, and effectively solves the problem of heat accumulation inside the housing caused by the heat generated by the transformer of the prior power adapter.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an arc-shaped power adapter comprises a bottom shell, an upper cover and a PCB (printed circuit board); the bottom shell is provided with a front plate, a rear plate, a left plate and a right plate, an installation cavity is defined by the front plate, the rear plate, the left plate and the right plate, and the middle part of the rear plate is protruded backwards to form an arc-shaped surface; the PCB is arranged in the mounting cavity and provided with a transformer and a plurality of capacitors, and the transformer is arranged in the middle of the PCB; the upper cover is detachably arranged on the bottom shell, and is provided with a heat dissipation metal frame which covers the peripheral side face of the transformer.

As a preferred embodiment: the middle parts of the left plate, the right plate and the rear plate are all provided with first buckle convex parts, and the left side, the right side and the rear side of the upper cover are all provided with first buckle concave positions matched with the first buckle convex parts.

As a preferred embodiment: the heat dissipation metal frame is detachably arranged at the bottom of the upper cover.

As a preferred embodiment: the heat dissipation metal frame is characterized in that insertion convex strips are arranged on the periphery of the top of the heat dissipation metal frame, insertion concave positions are formed in the bottom of the upper cover, and the insertion convex strips are inserted into the insertion concave positions.

As a preferred embodiment: the heat dissipation metal frame is formed by stamping a copper substrate or an aluminum alloy substrate.

As a preferred embodiment: wire through grooves are formed in two sides of the front plate, and each wire through groove penetrates through the top of the front plate upwards;

the upper cover is provided with a pressing line convex strip, and the pressing line convex strip is inserted into the line through groove.

As a preferred embodiment: the heat conduction silica gel piece has been placed along the inboard cover formula of the arcwall face of back plate in the installation cavity to the heat that makes PCB board, transformer and a plurality of electric capacity distributes to the outside air in from the arcwall face of back plate through heat conduction silica gel piece.

Compared with the prior art, the utility model obvious advantage and beneficial effect have, particularly, can know by above-mentioned technical scheme:

the structure of the bottom shell is optimized, and the middle part of the rear plate is protruded backwards to form an arc-shaped surface; after the transformer is arranged in the middle of the PCB, the gap between the transformer and the bottom shell can be increased by utilizing the arc-shaped surface, and the heat generated by the transformer can be effectively led out through the heat-dissipation metal frame and the upper cover by combining the arrangement of the heat-dissipation metal frame, so that the possibility of heat gathering in the installation cavity is low, the normal use of electronic components is not influenced, and the reliability is better;

secondly, the upper cover is detachably arranged on the bottom shell; compared with the traditional shell structure which adopts gluing or integrated molding, the shell structure is convenient for later-stage disassembly and maintenance;

and, with the help of the design of back plate arcwall face, can place the heat conduction silica gel piece along the inboard cover formula of the arcwall face of back plate in the installation cavity, compare vertical plane, the heat conduction silica gel piece can obtain better location to make the heat of PCB board, transformer and a plurality of electric capacity distribute to the outside air from the arcwall face of back plate through heat conduction silica gel piece, arc design increase heat radiating area is favorable to promoting the radiating efficiency.

To illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Drawings

FIG. 1 is a cross-sectional view of a preferred embodiment of the present invention;

FIG. 2 is a perspective view of a preferred embodiment of the present invention;

fig. 3 is a schematic perspective view of a bottom case according to a preferred embodiment of the present invention;

fig. 4 is a schematic perspective view of the upper cover according to the preferred embodiment of the present invention.

The attached drawings indicate the following:

10. bottom shell 11, front plate

12. Rear plate 13, left plate

14. Right plate 15, mounting cavity

16. First buckle convex part 17 and wire passing through groove

20. Upper cover 21 and heat dissipation metal frame

211. Inserting convex strip 22 and first buckle concave position

23. Inserting concave 24 and pressing line convex strip

30. PCB (printed circuit board) 31 and transformer

32. And (4) a capacitor.

Detailed Description

Referring to fig. 1 to 4, which show a specific structure of a preferred embodiment of the present invention, the present invention is an arc-shaped power adapter, which includes a bottom case 10, an upper cover 20 and a PCB 30.

The bottom shell 10 has a front plate 11, a rear plate 12, a left plate 13, and a right plate 14, a mounting cavity 15 is enclosed by the front plate 11, the rear plate 12, the left plate 13, and the right plate 14, and the middle of the rear plate 12 protrudes backward to form an arc surface. In the embodiment of the present application, the PCB 30 is installed in the installation cavity 15, the PCB 30 is provided with a transformer 31 and a plurality of capacitors 32, and the transformer 31 is disposed in the middle of the PCB 30; the upper cover 20 is detachably mounted on the bottom case 10, and the upper cover 20 is provided with a heat dissipation metal frame 21, and the heat dissipation metal frame 21 covers the peripheral side of the transformer 31. Specifically, the gap between the transformer 31 and the bottom case 10 can be increased by using the arc-shaped surface after the transformer 31 is mounted in the middle of the PCB 30, and the heat generated by the transformer 31 can be effectively conducted out through the heat-dissipating metal frame 21 and the upper cover 20 by using the heat-dissipating metal frame 21, so that the possibility of heat gathering inside the mounting cavity 15 is low, the normal use of electronic components is not affected, and the reliability is better.

The middle parts of the left plate 13, the right plate 14 and the back plate 12 are all provided with a first buckle convex part 16, and the left side, the right side and the back side of the upper cover 20 are all provided with a first buckle concave part 22 matched with the first buckle convex part 16. Utilize the setting of first buckle convex part 16 and first buckle concave position 22 for constitute detachable assembly between upper cover 20 and the drain pan 10, adopt sticky or integrated into one piece's shell structure in the tradition, the dismouting maintenance in the later stage of being convenient for.

The heat dissipation metal frame 21 is detachably mounted at the bottom of the upper cover 20, the insertion convex strips 211 are arranged on the periphery of the top of the heat dissipation metal frame 21, the insertion concave positions 23 are arranged at the bottom of the upper cover 20, and the insertion convex strips 211 are inserted into the insertion concave positions 23. Preferably, the heat-dissipating metal frame 21 is punched out of a copper substrate or an aluminum alloy substrate.

The heat-conducting silica gel sheet is placed along the inner side of the arc-shaped surface of the back plate 12 in the installation cavity 15 in a covering manner, so that the heat of the PCB 30, the transformer 31 and the capacitors 32 is dissipated to the outside air from the arc-shaped surface of the back plate 12 through the heat-conducting silica gel sheet. With the help of the 12 arcwall faces of back plate design, can place the heat conduction silica gel piece along the inboard cover formula of the arcwall faces of back plate 12 in installation cavity 15, compare vertical plane, the heat conduction silica gel piece can obtain better location to make PCB board 30, transformer 31 and a plurality of electric capacity 32 the heat distribute to the outside air from the arcwall faces of back plate 12 through the heat conduction silica gel piece, arc design increase heat radiating area is favorable to promoting the radiating efficiency.

Through-groove 17 is arranged on two sides of the front plate 11, and each through-groove 17 penetrates the top of the front plate 11 upwards; the upper cover 20 is provided with a press line protrusion 24, and the press line protrusion 24 is inserted into the through groove 17. By means of the structure of the communicating grooves and the line pressing convex strips 24, the column connecting lines can be pressed; on one hand, the connecting wire can be prevented from being separated from the connection with the PCB 30 due to the pulling of external force, and on the other hand, the effect of the PCB 30 can be stabilized.

The utility model discloses a design focus lies in: the structure of the bottom shell 10 is optimized, and the middle part of the rear plate 12 is protruded backwards to form an arc-shaped surface; after the transformer 31 is mounted in the middle of the PCB 30, the gap between the transformer 31 and the bottom case 10 can be increased by using the arc-shaped surface, and the heat generated by the transformer 31 can be effectively conducted out through the heat-dissipating metal frame 21 and the upper cover 20 by combining the arrangement of the heat-dissipating metal frame 21, so that the possibility of heat gathering inside the mounting cavity 15 is low, the normal use of electronic components is not affected, and the reliability is better;

secondly, the upper cover 20 is detachably mounted on the bottom case 10; compared with the traditional shell structure which adopts gluing or integrated molding, the shell structure is convenient for later-stage disassembly and maintenance;

and, with the help of the design of the arc face of back plate 12, can place the heat conduction silica gel piece along the inboard cover formula of the arc face of back plate 12 in installation cavity 15, compare vertical plane, the heat conduction silica gel piece can obtain better location to make PCB board 30, transformer 31 and a plurality of electric capacity 32 the heat give off to the outside air from the arc face of back plate 12 through the heat conduction silica gel piece, arc design increase heat radiating area is favorable to promoting the radiating efficiency.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention, so that any slight modifications, equivalent changes and modifications made by the technical spirit of the present invention to the above embodiments are all within the scope of the technical solution of the present invention.

Claims

1. An arc power adapter, its characterized in that: comprises a bottom shell, an upper cover and a PCB board; the bottom shell is provided with a front plate, a rear plate, a left plate and a right plate, an installation cavity is defined by the front plate, the rear plate, the left plate and the right plate, and the middle part of the rear plate is protruded backwards to form an arc-shaped surface; the PCB is arranged in the mounting cavity and provided with a transformer and a plurality of capacitors, and the transformer is arranged in the middle of the PCB; the upper cover is detachably arranged on the bottom shell, and is provided with a heat dissipation metal frame which covers the peripheral side face of the transformer.

2. The arcuate power adapter as defined in claim 1, wherein: the middle parts of the left plate, the right plate and the rear plate are all provided with first buckle convex parts, and the left side, the right side and the rear side of the upper cover are all provided with first buckle concave positions matched with the first buckle convex parts.

3. The arcuate power adapter as defined in claim 1, wherein: the heat dissipation metal frame is detachably arranged at the bottom of the upper cover.

4. The arc-shaped power adapter as claimed in claim 1 or 3, wherein: the heat dissipation metal frame is characterized in that insertion convex strips are arranged on the periphery of the top of the heat dissipation metal frame, insertion concave positions are formed in the bottom of the upper cover, and the insertion convex strips are inserted into the insertion concave positions.

5. The arcuate power adapter as defined in claim 4, wherein: the heat dissipation metal frame is formed by stamping a copper substrate or an aluminum alloy substrate.

6. The arcuate power adapter as defined in claim 1, wherein: wire through grooves are formed in two sides of the front plate, and each wire through groove penetrates through the top of the front plate upwards;

7. The arcuate power adapter as defined in claim 1, wherein: the heat conduction silica gel piece has been placed along the inboard cover formula of the arcwall face of back plate in the installation cavity to the heat that makes PCB board, transformer and a plurality of electric capacity distributes to the outside air in from the arcwall face of back plate through heat conduction silica gel piece.