CN213846550U

CN213846550U - Power adapter of high interference immunity stable form direct current electrical interface

Info

Publication number: CN213846550U
Application number: CN202023328027.3U
Authority: CN
Inventors: 谭祖培
Original assignee: Shenzhen Qiwei Technology Co ltd
Current assignee: Shenzhen Qiwei Technology Co ltd
Priority date: 2020-12-31
Filing date: 2020-12-31
Publication date: 2021-07-30
Anticipated expiration: 2030-12-31

Abstract

The utility model discloses a high interference immunity stable form direct current interface's power adapter, which comprises a housin, the shell plate body of casing comprises first insulation layer, second insulating layer, first shielding layer, second shielding layer and heat-conducting layer jointly, first shielding layer and second shielding layer correspond the upper and lower both sides of connecting at the heat-conducting layer, the upper surface at first shielding layer is set up to the first insulation layer correspondence, the second insulating layer corresponds the lower surface that sets up at the second shielding layer, the inside of casing is provided with integrated circuit board, integrated circuit board's upper surface both sides are provided with input interface and output interface respectively, input interface's adjacent side is provided with first EMI module, output interface's adjacent side is provided with second EMI module. The utility model discloses in, the casing comprises insulating layer, heat-conducting layer and shielding layer jointly, can effectively shield external electromagnetic interference, increases input/output stability, and possesses good heat conductivility itself, is favorable to self heat dissipation.

Description

Power adapter of high interference immunity stable form direct current electrical interface

Technical Field

The utility model relates to a power adapter field especially relates to a power adapter of high interference immunity stable form direct current electrical interface.

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.

The power adapter is widely used, the interference resistance and the stability of the existing power adapter are poor, and the existing power adapter is easily interfered by external electromagnetism, so that the input and output stability is reduced, and the high-interference-resistance stable power adapter is arranged.

SUMMERY OF THE UTILITY MODEL

The utility model aims at solving the shortcoming that exists among the prior art, and the power adapter of a high interference immunity stable form direct current electrical interface that proposes.

In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a high interference immunity stable form direct current interface's power adapter, includes the casing, the casing plate body of casing comprises first insulation layer, second insulating layer, first shielding layer, second shielding layer and heat-conducting layer jointly, first shielding layer and second shielding layer correspond the upper and lower both sides of connecting at the heat-conducting layer, the upper surface that sets up at first shielding layer is corresponded to the first insulation layer, the second insulating layer corresponds the lower surface that sets up at the second shielding layer, the inside of casing is provided with integrated circuit board, integrated circuit board's upper surface both sides are provided with input interface and output interface respectively, the adjacent side of input interface is provided with first EMI module, the adjacent side of output interface is provided with second EMI module.

As a further description of the above technical solution:

the heat-conducting layer corresponds the shell body plate body middle part position that sets up at the casing, the equal equidistance in upper and lower surface of heat-conducting layer is connected with polylith heat conduction extension board, upside the heat conduction extension board corresponds runs through first insulating layer and first shielding layer, downside the heat conduction extension board corresponds runs through second insulating layer and second shielding layer.

As a further description of the above technical solution:

the upper end surface of the upper side heat conduction support plate is the same as the upper surface of the first insulating layer, and the lower end surface of the lower side heat conduction support plate is the same as the lower surface of the second insulating layer.

As a further description of the above technical solution:

the first shielding layer and the second shielding layer are respectively attached and fixedly connected to the upper surface and the lower surface of the heat conducting layer.

As a further description of the above technical solution:

the first insulating layer is attached to the upper surface of the first shielding layer, and the second insulating layer is attached to the lower surface of the second shielding layer.

As a further description of the above technical solution:

the input interface and the output interface are correspondingly arranged in the middle positions of two sides of the upper surface of the integrated circuit board, the first EMI module corresponds to the input interface, and the second EMI module corresponds to the output interface.

The utility model discloses following beneficial effect has:

1. the utility model discloses among high interference immunity stable form DC interface's the power adapter, the casing comprises insulating layer, heat-conducting layer and shielding layer jointly, can effectively shield external electromagnetic interference, increases input/output stability to itself has good heat conductivility, is favorable to self heat dissipation.

2. The utility model discloses among high interference immunity stable form DC interface's the power adapter, correspond the input/output interface position on the integrated circuit board and all be provided with the EMI module, the electromagnetic interference that can filtering input/output interface position, good interference immunity and stability are realized to the cooperation casing.

Drawings

Fig. 1 is a schematic structural diagram of a housing of a power adapter with a high interference immunity stable dc interface;

FIG. 2 is a top sectional view of a power adapter for a high interference immunity stable DC power interface;

fig. 3 is a front view of a power adapter for a high interference immunity stable dc power interface.

Illustration of the drawings:

1. a housing; 2. an integrated circuit board; 3. an input interface; 4. an output interface; 5. a first EMI module; 6. a second EMI module; 7. a first insulating layer; 8. a second insulating layer; 9. a first shielding layer; 10. a second shielding layer; 11. a heat conductive layer; 12. a heat conducting support plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", 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 and operated in a specific orientation, and thus, should not be construed as limiting the present invention; the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance, and furthermore, unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Referring to fig. 1-3, the present invention provides an embodiment: a high anti-interference stable type power adapter of a direct current interface comprises a shell 1, wherein a shell body plate body of the shell 1 consists of a first insulating layer 7, a second insulating layer 8, a first shielding layer 9, a second shielding layer 10 and a heat conduction layer 11, the components of the shell 1 are provided, the first shielding layer 9 and the second shielding layer 10 are correspondingly connected to the upper side and the lower side of the heat conduction layer 11 to realize corresponding shielding effect and heat conduction performance, the first insulating layer 7 is correspondingly arranged on the upper surface of the first shielding layer 9 to realize upper side insulation, the second insulating layer 8 is correspondingly arranged on the lower surface of the second shielding layer 10 to realize lower side insulation, an integrated circuit board 2 is arranged inside the shell 1, an input interface 3 and an output interface 4 are respectively arranged on two sides of the upper surface of the integrated circuit board 2 to provide input and output connection positions, a first EMI module 5 is arranged on the adjacent side of the input interface 3, and electromagnetic interference of the input position is filtered, and a second EMI module 6 is arranged on the adjacent side of the output interface 4 to filter electromagnetic interference of the output position.

The heat conduction layer 11 is correspondingly arranged at the middle position of the shell body of the shell 1, the upper surface and the lower surface of the heat conduction layer 11 are connected with a plurality of heat conduction support plates 12 at equal intervals, the upper heat conduction support plate 12 correspondingly penetrates through the first insulating layer 7 and the first shielding layer 9, the lower heat conduction support plate 12 correspondingly penetrates through the second insulating layer 8 and the second shielding layer 10, the upper end surface of the upper heat conduction support plate 12 is the same as the upper surface of the first insulating layer 7, the lower end surface of the lower heat conduction support plate 12 is the same as the lower surface of the second insulating layer 8, heat is led out, the purpose of increasing heat dissipation is achieved, the first shielding layer 9 and the second shielding layer 10 are respectively fixedly attached to the upper surface and the lower surface of the heat conduction layer 11, the first insulating layer 7 is attached to the upper surface of the first shielding layer 9, the second insulating layer 8 is attached to the lower surface of the second shielding layer 10, the whole structure is stable, the input interface 3 and the output interface 4 are correspondingly arranged at the middle positions of two sides of the upper surface of the integrated circuit board 2, the first EMI module 5 corresponds to the input interface 3, and the second EMI module 6 corresponds to the output interface 4, so that corresponding electromagnetic interference filtering is realized.

The working principle is as follows: in the power adapter of high interference immunity stable form direct current electrical interface, casing 1 comprises insulating layer (first insulating layer 7, second insulating layer 8), heat-conducting layer 11 and shielding layer (first shielding layer 9, second shielding layer 10) jointly, can effectively shield external electromagnetic interference, increase input/output stability, and itself has good heat conductivility, be favorable to self heat dissipation, it all is provided with EMI module (first EMI module 5, second EMI module 6) to correspond 3 output interface 4 positions of input interface on integrated circuit board 2, the electromagnetic interference of 3 output interface 4 positions of input interface can be filtered, cooperation casing 1 realizes good interference immunity and stability.

Finally, it should be noted that: although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications and variations can be made in the embodiments or in part of the technical features of the embodiments without departing from the spirit and the scope of the invention.

Claims

1. The utility model provides a high interference immunity stable form direct current interface's power adapter, includes casing (1), its characterized in that: the shell body plate body of the shell (1) is composed of a first insulating layer (7), a second insulating layer (8), a first shielding layer (9), a second shielding layer (10) and a heat conduction layer (11), the first shielding layer (9) and the second shielding layer (10) are correspondingly connected to the upper side and the lower side of the heat conducting layer (11), the first insulating layer (7) is correspondingly arranged on the upper surface of the first shielding layer (9), the second insulating layer (8) is correspondingly arranged on the lower surface of the second shielding layer (10), an integrated circuit board (2) is arranged in the shell (1), an input interface (3) and an output interface (4) are respectively arranged on two sides of the upper surface of the integrated circuit board (2), a first EMI module (5) is arranged at the adjacent side of the input interface (3), and a second EMI module (6) is arranged on the adjacent side of the output interface (4).

2. The power adapter with high interference immunity and stable DC interface of claim 1, wherein: the heat conducting layer (11) is correspondingly arranged in the middle of a shell body plate of the shell (1), a plurality of heat conducting support plates (12) are connected to the upper surface and the lower surface of the heat conducting layer (11) at equal intervals, the heat conducting support plates (12) correspondingly penetrate through the first insulating layer (7) and the first shielding layer (9) and the lower side of the heat conducting support plates (12) correspondingly penetrate through the second insulating layer (8) and the second shielding layer (10).

3. The power adapter with high interference immunity and stable DC interface of claim 2, wherein: the upper end surface of the upper heat conduction support plate (12) is the same as the upper surface of the first insulating layer (7), and the lower end surface of the lower heat conduction support plate (12) is the same as the lower surface of the second insulating layer (8).

4. The power adapter with high interference immunity and stable DC interface of claim 1, wherein: the first shielding layer (9) and the second shielding layer (10) are respectively attached and fixedly connected to the upper surface and the lower surface of the heat conduction layer (11).

5. The power adapter with high interference immunity and stable DC interface of claim 1, wherein: the first insulating layer (7) is attached to the upper surface of the first shielding layer (9), and the second insulating layer (8) is attached to the lower surface of the second shielding layer (10).

6. The power adapter with high interference immunity and stable DC interface of claim 1, wherein: the input interface (3) and the output interface (4) are correspondingly arranged in the middle positions of two sides of the upper surface of the integrated circuit board (2), the first EMI module (5) corresponds to the input interface (3), and the second EMI module (6) corresponds to the output interface (4).