CN216413462U

CN216413462U - Power adapter

Info

Publication number: CN216413462U
Application number: CN202123107753.7U
Authority: CN
Inventors: 廖锦标
Original assignee: Foshan Jingdian Technology Co ltd
Current assignee: Foshan Jingdian Technology Co ltd
Priority date: 2021-12-08
Filing date: 2021-12-08
Publication date: 2022-04-29
Anticipated expiration: 2031-12-08

Abstract

The utility model discloses a power adapter, which relates to the technical field of mobile terminal chargers and comprises a shell, a circuit board, a circuit elastic sheet, a pressing plate, pins, a socket and a cover body, wherein the shell forms an installation cavity with an opening at the top, and the inner side surface of the shell is provided with a plurality of positioning columns; the circuit board is arranged in the mounting cavity; the circuit elastic pieces are arranged on the inner side of the shell through the positioning columns, and one end of each circuit elastic piece is electrically connected with the circuit board; the pressing plate is arranged on one side of the circuit elastic sheet, which is far away from the shell, and is connected with the shell; the pin is rotatably arranged on the shell and is contacted with the other end of the circuit elastic sheet; the plurality of the inserting ports are arranged on the shell, and the inserting ports are electrically connected with the circuit board; the cover body is arranged on the shell and covers the top opening. This power adapter improves circuit shell fragment connection structure stability, increase of service life and guarantees normally to charge.

Description

Power adapter

Technical Field

The utility model relates to the technical field of mobile terminal chargers, in particular to a power adapter.

Background

The power adapter is a power supply conversion device for small portable electronic equipment and electronic appliances. The mobile terminal adopts a low-voltage battery, and the power adapter for charging is equivalent to a small transformer, so that the commercial power is converted into low voltage meeting the requirements of the battery, and the mobile terminal is charged.

The plug pins of the power adapter rotate relative to the shell to be opened and closed, namely when the power adapter is required to be used, the plug pins are rotated and opened, the tail ends of the plug pins are electrically connected with the socket, and the other ends of the plug pins are in contact with the circuit elastic sheet in the shell, so that power is supplied to the circuit board.

In the assembling process or the using process, the opening and closing of the pins may cause the circuit elastic sheet to shift, so that poor contact is caused, and the circuit elastic sheet is broken or a lead used for connecting the circuit elastic sheet and a circuit board is torn off seriously, thereby affecting the normal use of the power adapter.

SUMMERY OF THE UTILITY MODEL

The utility model mainly aims to provide a power adapter, and aims to provide a power adapter which can improve the stability of a circuit elastic sheet connecting structure, prolong the service life and ensure normal charging.

In order to achieve the above object, the present invention provides a power adapter, including:

the device comprises a shell, a positioning device and a control device, wherein the shell forms an installation chamber with an opening at the top, and the inner side surface of the shell is provided with a plurality of positioning columns;

the circuit board is arranged in the mounting cavity;

the circuit elastic pieces are arranged on the inner side of the shell through the positioning columns, and one end of each circuit elastic piece is electrically connected with the circuit board;

the pressing plate is arranged on one side, away from the shell, of the circuit elastic sheet and is connected with the shell;

the plug pins are rotatably arranged on the shell and are contacted with the other end of the circuit elastic sheet;

a plurality of sockets are arranged on the shell and electrically connected with the circuit board;

a cover disposed on the housing and covering the top opening.

Optionally, the number of the positioning columns is four, the circuit elastic piece is provided with two first positioning holes, the pressing plate is provided with four second positioning holes, the two circuit elastic pieces are arranged at intervals up and down, each circuit elastic piece is positioned through the two positioning columns, the second positioning holes penetrate through the positioning columns to realize positioning, and the circuit elastic pieces are fixed between the shell and the pressing plate through connection between the pressing plate and the shell.

Optionally, the housing comprises:

the side surface of the bottom shell is provided with an installation notch;

the plug socket is arranged on the bottom shell and covers the installation gap, the bottom shell and the plug socket are enclosed to form the installation cavity, the positioning column is arranged on one side, facing the installation cavity, of the plug socket, and the plug pins are rotatably arranged on the plug socket.

Optionally, the socket is provided with a threaded connection column, the pressing plate is provided with a connection hole corresponding to the threaded connection column, and the pressing plate is arranged on the socket through a threaded fastener.

Optionally, the lid is equipped with a plurality of spacing muscle, the medial surface of drain pan is equipped with a plurality of spacing grooves, spacing muscle with the spacing groove one-to-one, the casing with the lid passes through ultrasonic bonding and realizes being connected.

Optionally, the socket is provided with a receiving cavity for receiving the pin.

Optionally, the bottom shell is provided with a clamping groove, the plug socket is provided with a clamping portion, and the plug socket is connected with the bottom shell in a clamping manner.

Optionally, the plug pins are rotatably arranged on the plug socket through a rotating shaft, the plug socket is provided with a first arc groove, the pressing plate is provided with a second arc groove, and the first arc groove and the second arc groove are located on two opposite sides of the rotating shaft so as to position the rotating shaft.

Optionally, the power adapter includes a light guide pillar, and the light guide pillar is disposed on the housing and electrically connected to the circuit board.

Optionally, the socket may be one or more of a USB interface, a Type-C interface, a Micro USB interface, and a lightning interface.

According to the technical scheme, the positioning column for positioning the circuit elastic sheet is arranged on the inner side of the shell, the pressing plate is arranged on the other side of the circuit elastic sheet, which is far away from the shell, and the pressing plate is connected with the shell to fix the circuit elastic sheet between the shell and the pressing plate, so that the risk of dislocation of the circuit elastic sheet in the process of opening and closing the pins is reduced, the technical problems that the circuit elastic sheet is poor in contact, broken in the elastic sheet or broken in the wire and the like caused by possible position deviation in the assembling or using process in the prior art are effectively solved, and the technical effects of improving the stability of the connection structure of the circuit elastic sheet, prolonging the service life and ensuring normal charging are achieved.

Drawings

FIG. 1 is a schematic structural diagram of a power adapter according to an embodiment of the present invention;

FIG. 2 is a schematic diagram of another perspective view of the power adapter of the present invention;

FIG. 3 is a schematic diagram of a power adapter according to the present invention in a disassembled configuration;

FIG. 4 is a schematic view of an assembly structure of the socket, the circuit spring, the pressing plate and the pins according to the present invention;

FIG. 5 is a schematic diagram of a detachable structure of the socket, the circuit spring, the pressing plate and the pins according to the present invention;

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

FIG. 7 is a schematic structural view of another perspective of the socket of the present invention;

FIG. 8 is a schematic view of the construction of the platen of the present invention;

the reference numbers illustrate:

a power adapter 100; a housing 10; a bottom case 11; a limiting groove 111; mounting notches 112; a socket 12; a positioning post 121; a threaded post 122; an accommodating chamber 123; a first arc groove 124; a circuit board 20; a circuit spring 30; a first positioning hole 31; a pressure plate 40; the second positioning hole 41; the connection hole 42; a second arc groove 43; pins 50; an interface 60; a cover 70; a limiting rib 71; the light guide 80.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The utility model provides a power adapter 100 for charging a mobile terminal.

In order to better understand the technical solution, the technical solution will be described in detail with reference to the drawings and the specific embodiments.

In an embodiment of the present invention, as shown in fig. 1, fig. 2 and fig. 3, the power adapter 100 includes a housing 10, a circuit board 20, a circuit elastic sheet 30, a pressing plate 40, pins 50, a socket 60 and a cover 70, wherein the housing 10 forms a mounting chamber with an open top, and a plurality of positioning posts 121 are disposed on an inner side surface of the housing 10; the circuit board 20 is arranged in the mounting chamber; the number of the circuit elastic pieces 30 is two, the circuit elastic pieces 30 are arranged on the inner side of the shell 10 through the positioning columns 121, and one end of each circuit elastic piece 30 is electrically connected with the circuit board 20; the pressing plate 40 is arranged on one side of the circuit elastic sheet 30 far away from the shell 10 and connected with the shell 10; the pin 50 is rotatably arranged on the shell 10 and contacts with the other end of the circuit elastic sheet 30; a plurality of sockets 60 are provided in the housing 10, and the sockets 60 are electrically connected to the circuit board 20; the cover 70 is disposed on the housing 10 and covers the top opening.

It can be understood that, in the process of the pin 50 rotating relative to the housing 10, one end of the pin 50 located inside the housing 10 is always in contact with the circuit elastic sheet 30, in order to avoid the pin 50 rotating to make the circuit elastic sheet 30 offset, therefore, the circuit elastic sheet 30 is disposed on the inner side surface of the housing 10 through the positioning column 121, and is compressed by the pressing plate 40, that is, the circuit elastic sheet 30 is fixed between the pressing plate 40 and the housing 10, thereby improving the positioning effect, and in the assembling process or in the process of the pin 50 rotating, the circuit elastic sheet 30 is not easy to shift.

According to the technical scheme, the positioning column 121 for positioning the circuit elastic sheet 30 is arranged on the inner side of the shell 10, the pressing plate 40 is arranged on the other side, away from the shell 10, of the circuit elastic sheet 30, the pressing plate 40 is connected with the shell 10 to fix the circuit elastic sheet 30 between the shell 10 and the pressing plate 40, and therefore the risk of dislocation of the circuit elastic sheet 30 in the process of opening and closing the pins 50 is reduced, the technical problems that in the prior art, the circuit elastic sheet 30 is likely to deviate in position in the assembling or using process, so that poor contact, breakage of the elastic sheet or breakage of a lead wire and the like are caused are effectively solved, and the technical effects of improving the stability of the connecting structure of the circuit elastic sheet 30, prolonging the service life and ensuring normal charging are achieved.

In an embodiment of the present invention, as shown in fig. 3, 4, 5, 6, 7, and 8, four positioning posts 121 are provided, two first positioning holes 31 are provided on the circuit elastic sheet 30, four second positioning holes 41 are provided on the pressing plate 40, the two circuit elastic sheets 30 are spaced up and down, each circuit elastic sheet 30 is positioned by the two positioning posts 121, the second positioning holes 41 penetrate through the positioning posts 121 to realize positioning, and the circuit elastic sheet 30 is fixed between the casing 10 and the pressing plate 40 by connecting the pressing plate 40 and the casing 10. The two circuit elastic sheets 30 are pressed tightly by matching the positioning columns 121 with the first positioning holes 31 and connecting the pressing plate 40 with the shell 10, so that the positions of the circuit elastic sheets 30 are limited. The positioning post 121 may be cylindrical or prismatic, and the positioning post 121 and the first positioning hole 31 and the positioning post 121 and the second positioning hole 41 are in clearance fit, so that the installation and positioning are convenient.

In the embodiment of the present invention, as shown in fig. 3, the housing 10 includes a bottom shell 11 and a socket 12, and a mounting notch 112 is formed on a side surface of the bottom shell 11; socket 12 is disposed on bottom shell 11 and covers installation gap 112, bottom shell 11 and socket 12 enclose to form an installation chamber, positioning column 121 is disposed on one side of socket 12 facing the installation chamber, and plug pin 50 is rotatably disposed on socket 12.

In the present invention, as shown in fig. 3, the bottom case 11 includes a bottom plate and a side wall partially enclosing the bottom plate, the bottom plate and the side wall are an integrally formed structure, the circuit board 20 is disposed on the bottom plate, a mounting notch 112 is formed at a position where the side walls are not connected end to end, the socket 12 is located at a position of the mounting notch 112 and connected to the bottom case 11, and the plurality of sockets 60 are disposed on the annular side wall. The socket 12 and the interface 60 are located on two opposite sides of the bottom case 11, that is, after the pin 50 is electrically connected to the socket, the interface 60 connected to the mobile terminal is located on one side far away from the socket, which is convenient for the user to use.

In the embodiment of the present invention, as shown in fig. 6 and 7, the socket 12 is provided with a threaded connection post 122, the pressing plate 40 is provided with a connection hole 42 corresponding to the threaded connection post 122, and the pressing plate 40 is provided on the socket 12 by a threaded fastener. A threaded fastener is threaded through the attachment bore 42 to threadably engage the threaded attachment post 122.

In the present invention, as shown in fig. 3, 4 and 5, the socket 12, the pins 50, the circuit elastic pieces 30 and the pressing plate 40 are assembled in advance to form a semi-finished product, the semi-finished product is installed at the installation notch 112 of the bottom case 11, and then is connected to the circuit board 20 by soldering, that is, the wires led out from the two circuit elastic pieces 30 are fixed to the circuit board 20 by soldering, so as to improve the assembly efficiency.

In the embodiment of the present invention, as shown in fig. 3, the cover 70 is provided with a plurality of limiting ribs 71, the inner side surface of the bottom case 11 is provided with a plurality of limiting grooves 111, the limiting ribs 71 and the limiting grooves 111 correspond to each other one by one, and the housing 10 and the cover 70 are connected by ultrasonic welding. The limiting rib 71 is arranged on one side, facing the shell 10, of the cover body 70, when the limiting rib 71 is installed, the limiting rib 71 is aligned with the limiting groove 111 and installed along the grooving direction of the limiting groove 111, when the limiting rib 71 contacts with the bottom of the limiting groove 111, the limiting rib 71 is installed in place, and the fit clearance between the cover body 70 and the shell 10 can be guaranteed to be even through the matching of the limiting rib 71 and the limiting groove 111, so that large-amplitude displacement cannot be generated during ultrasonic welding. The cover 70 is provided with an anti-slip groove on one side away from the housing 10, and the top edge is provided with a cambered surface, so that the product is more beautiful.

In an embodiment of the present invention, as shown in fig. 6, the socket 12 is provided with a receiving cavity 123 for receiving the pin 50. When the charging device is not used, the plug pin 50 can be rotated and accommodated in the accommodating cavity 123, and when the charging device needs to be charged, the plug pin 50 is pulled out of the accommodating cavity 123.

In the embodiment of the present invention, the bottom shell 11 is provided with a clamping groove, the socket 12 is provided with a clamping portion, and the socket 12 is connected with the bottom shell 11 by a snap-fit connection. The assembly is convenient by a buckle connection mode.

In the embodiment of the present invention, as shown in fig. 6, 7 and 8, the plug 50 is rotatably disposed on the socket 12 through a rotation shaft, the socket 12 is provided with a first arc groove 124, the pressing plate 40 is provided with a second arc groove 43, and the first arc groove 124 and the second arc groove 43 are disposed on opposite sides of the rotation shaft to position the rotation shaft. The recess through the left and right sides is injectd, can reduce to participate in 50 rocking at the rotation in-process, improves structural stability.

In an embodiment of the present invention, as shown in fig. 1 and 3, the power adapter 100 includes a light guide 80, and the light guide 80 is disposed on the housing 10 and electrically connected to the circuit board 20. The light guide 80 is used as an indication to determine whether the power supply is properly connected.

In the embodiment of the present invention, the socket 60 is one or more of a USB interface, a Type-C interface, a Micro USB interface, and a lightning interface. The use of most electronic products is satisfied by providing the interface 60 with various specifications.

The above description is only an alternative embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A power adapter, the power adapter comprising:

the circuit board is arranged in the mounting cavity;

a cover disposed on the housing and covering the top opening.

2. The power adapter as claimed in claim 1, wherein there are four positioning posts, the circuit elastic sheet has two first positioning holes, the pressing plate has four second positioning holes, two circuit elastic sheets are spaced up and down, and each circuit elastic sheet is positioned by two positioning posts, the second positioning holes penetrate through the positioning posts to realize positioning, and the circuit elastic sheet is fixed between the casing and the pressing plate through the connection between the pressing plate and the casing.

3. The power adapter as claimed in claim 1, wherein said housing comprises:

the side surface of the bottom shell is provided with an installation notch;

4. The power adapter as claimed in claim 3, wherein the socket is provided with a threaded connection post, the pressing plate is provided with a connection hole corresponding to the threaded connection post, and the pressing plate is provided on the socket by a threaded fastener.

5. The power adapter as claimed in claim 3, wherein the cover has a plurality of limiting ribs, the inner side of the bottom casing has a plurality of limiting grooves, the limiting ribs correspond to the limiting grooves one to one, and the casing and the cover are connected by ultrasonic welding.

6. The power adapter of claim 3 wherein said socket defines a receiving cavity for receiving said pins.

7. The power adapter as claimed in claim 3, wherein the bottom shell is provided with a locking groove, the socket is provided with a locking portion, and the socket and the bottom shell are connected by a buckle.

8. The power adapter as claimed in claim 3, wherein the pins are rotatably provided to the socket via a shaft, the socket is provided with a first arc groove, the pressing plate is provided with a second arc groove, and the first arc groove and the second arc groove are located at opposite sides of the shaft to position the shaft.

9. The power adapter of any one of claims 1-8, wherein the power adapter includes a light guide disposed in the housing and electrically connected to the circuit board.

10. The power adapter as claimed in claim 9, wherein the socket is one or more of a USB interface, a Type-C interface, a Micro USB interface, and a lightning interface.