CN212258449U

CN212258449U - Power adapter

Info

Publication number: CN212258449U
Application number: CN202020384755.7U
Authority: CN
Inventors: 成龙龙; 范立; 蔡丽超; 范敏; 王明成
Original assignee: Lanto Electronic Ltd; Dongguan Xuntao Electronic Co Ltd
Current assignee: Lixun Technology Xi'an Co ltd
Priority date: 2020-03-24
Filing date: 2020-03-24
Publication date: 2020-12-29
Anticipated expiration: 2030-03-24
Also published as: TWM607334U; JP3227837U

Abstract

The utility model relates to the technical field of electronic equipment, and discloses a power adapter which comprises a shell and a main body component, wherein the shell comprises a top cover and a middle frame, the middle frame is provided with an installation port, and the top cover is fixedly connected on the installation port; the middle frame is of an integrally formed structure and comprises a bottom wall and an annular side wall, the bottom wall and the side wall form an installation cavity, the bottom wall is opposite to the installation opening in the vertical direction, a first insertion opening is formed in the side wall and used for inserting a butting connector, and the top cover completely covers the top of the installation cavity; the main body component is downwards arranged in the installation cavity and comprises a power supply pin, a connecting block, a circuit board, a first connecting terminal and a second connecting terminal, the power supply pin is arranged on the connecting block, an opening is formed in the side wall, and the power supply pin can be hidden in the opening or extend out of the opening and be exposed out of the side wall; the first connecting terminal is arranged on the connecting block and can be electrically communicated with the power pin, and the second connecting terminal is arranged on the circuit board and is abutted against the first connecting terminal. The middle frame is integrally formed, and seamless side walls are achieved.

Description

Power adapter

Technical Field

The utility model relates to the technical field of electronic equipment, especially, relate to a power adapter.

Background

Since the mobile terminal of today basically uses a low voltage battery, the charger is a small transformer, converts 220V into a low voltage, and then charges the mobile terminal.

The existing charger shell is basically of a sleeve type structure and comprises a first shell and a second shell, and components inside a power supply are installed and then spliced. The shell can generate a decorative seam, the appearance connection is rough, and the appearance of the charger is affected. Moreover, the pins are connected with the internal circuit board through wires, the wires need to be welded before assembly, and then the assembly is carried out, so that the assembly mode is complicated.

Therefore, a power adapter and a mobile terminal assembly are needed to solve the above technical problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a power adapter, it has realized the seamless structure of lateral wall, only need in the assembling process peg graft can, the equipment is fairly simple.

To achieve the purpose, the utility model adopts the following technical proposal:

provided is a power adapter including:

the shell comprises a top cover and a middle frame, wherein the middle frame is provided with a mounting opening, and the top cover is fixedly connected to the mounting opening;

the middle frame is of an integrally formed structure and comprises a bottom wall and an annular side wall integrally connected with the bottom wall, a mounting cavity is formed in the bottom wall and the side wall, the bottom wall is vertically opposite to the mounting hole, a first inserting port is formed in the side wall and used for inserting a butting connector, and the top cover completely covers the top of the mounting cavity;

the main body assembly is downwards arranged in the installation cavity and comprises a power supply pin, a connecting block, a circuit board, a first connecting terminal and a second connecting terminal, the power supply pin is arranged on the connecting block, an opening is formed in the side wall, and the power supply pin can be hidden in the opening or extend out of the opening and be exposed out of the side wall;

the first connecting terminal is arranged on the connecting block and can be electrically conducted with the power pin, and the second connecting terminal is arranged on the circuit board and is abutted against the first connecting terminal.

Preferably, be provided with joint arch and pothook on the inner wall of center, the connecting block is located between joint arch and the pothook, the protruding card of joint in one side of connecting block, the pothook hook hang in the opposite side of connecting block.

Preferably, the main part subassembly still includes the insulating block, the power is participated in set up in on the insulating block, be provided with the axis of rotation on the insulating block, the interval is provided with two joint pieces on the connecting block, the axis of rotation card in two between the joint piece.

Preferably, the rotating shaft is convexly provided with a stop bulge for limiting the insulating block.

Preferably, one of the first connecting terminal and the second connecting terminal is provided with an insertion portion, and the other one of the first connecting terminal and the second connecting terminal is provided with a clamping portion matched with the insertion portion.

Preferably, the top cover is provided with a downwardly extending support column, which downwardly abuts against the circuit board.

Preferably, the housing further comprises a bottom cover, and the bottom surface of the bottom wall is provided with a recess for accommodating and fixing the bottom cover.

Preferably, the surface of the housing has flow marks.

Preferably, the top edge of the middle frame is provided with an arc surface, the top edge of the periphery of the top cover is provided with an arc surface, and the upper surface of the top cover is higher than the middle frame.

Preferably, the inner side wall of the mounting port is provided with a step-shaped step, the outer edge of the top cover is provided with a step-shaped protrusion extending downwards, and the step-shaped protrusion abuts against the step-shaped step downwards.

The utility model has the advantages that:

the utility model discloses a what power adapter's shell adopted is center and top cap, and center integrated into one piece realizes the seamless structure of lateral wall, can not produce the art designing seam at power adapter's intermediate position, makes its surface smooth, pleasing to the eye. The pin assembly and the circuit board are connected in an abutting mode through the first connecting terminal and the second connecting terminal without conducting wires; the connecting wires do not need to be welded before assembly, and only need to be inserted in the assembly process, so that the assembly is simple and convenient. The power plug pins can be collected in the openings, so that the space occupied by the power adapter is smaller, and the power adapter is convenient to collect.

Drawings

Fig. 1 is a schematic structural diagram of a power adapter provided by the present invention;

FIG. 2 is a view from another angle of FIG. 1;

fig. 3 is a schematic structural diagram of a middle frame provided by the present invention;

fig. 4 is a schematic partial structure diagram of a power adapter provided by the present invention;

fig. 5 is a schematic structural view of a pin assembly and a connecting block provided by the present invention;

FIG. 6 is an enlarged partial view taken at A in FIG. 5;

fig. 7 is a schematic structural diagram of a main body assembly of the power adapter provided by the present invention;

FIG. 8 is an enlarged partial view at B of FIG. 7;

fig. 9 is a schematic structural view of the main body assembly and the top cover provided by the present invention;

fig. 10 is a schematic structural view of a top cover provided by the present invention;

fig. 11 is a partial cross-sectional view of a power adapter provided by the present invention.

In the figure: 1. a housing; 11. a top cover; 111. a support pillar; 112. a first protrusion; 113. a second protrusion;

12. a middle frame; 121. a bottom wall; 122. a side wall; 1221. an opening; 1222. clamping the bulges; 1223. a hook; 1224. a first interface; 1225. a second interface; 1226. a first groove; 1227. a second groove; 123. an installation port;

13. a bottom cover sheet;

21. a power supply pin; 211. an abutting portion; 22. connecting blocks; 221. a clamping block; 23. a circuit board; 24. A first connection terminal; 241. a clamping part; 25. a second snap terminal; 251. an insertion portion; 26. an insulating block; 261. a rotating shaft; 2611. a stop protrusion.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship which is usually placed when the product of the present invention is used, and are only for convenience of description of the present invention and simplification of description, but do not indicate or imply that the device or element referred to must have a specific position, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed" and "connected" are to be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; either mechanically or electrically. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

As shown in fig. 1 and 2, the present embodiment discloses a power adapter including a housing 1 and a main body assembly. The shell 1 comprises a top cover 11, a middle frame 12 and a bottom cover piece 13, wherein a mounting opening 123 is arranged on the middle frame 12, and the main body assembly is mounted in the middle frame 12 through the mounting opening 123. The bottom cover sheet 13 is fixed on the side of the middle frame 12 far away from the mounting opening. The middle frame 12 is an integrally formed structure, and includes a bottom wall 121 and an annular side wall 122, the bottom wall 121 and the side wall 122 form a mounting cavity, and the bottom wall 121 is opposite to the mounting hole 123. The top cover 11 is fixed on the mounting opening 123 and completely covers the top of the mounting cavity. The outer side of the bottom wall 121 is provided with a concave part for accommodating and fixing the bottom cover sheet 13, and the bottom cover sheet 13 is fixed on the outer side of the bottom wall 121 in an adhesion mode, so that the bottom of the shell 1 is relatively flat, and the aesthetic degree of the shell 1 is increased.

The surface of the shell 1 has flow marks, specifically, color master is added in the injection molding process of each part of the shell 1, and the irregular flow marks are formed on the surface of the shell 1 along with the flowing of molten rubber, so that the flow mark effect on the surface of the shell 1 is realized, and the appearance of the power adapter is more beautiful and unique. The middle frame 12 is of an integrally formed structure, the shell 1 of the power adapter is provided with the middle frame 12 and the top cover 11, a seamless structure of the side wall is achieved, and the surface of the power adapter is smooth and attractive. The top and bottom edges of the side walls 122 are provided as arcuate surfaces. The top edge of the periphery of the top cover 121 is also set to be an arc surface, and the upper surface of the top cover 121 is slightly higher than the middle frame. The bottom wall 121 is provided with a concave part on the lower surface, and the bottom cover sheet 13 is fixed in the concave part, so that the overall consistency of the appearance of the shell 1 is realized.

As shown in fig. 3 and 4, the main body assembly includes a power pin 21, a connection block 22, a circuit board 23, a first connection terminal 24, a second connection terminal 25, an insulation block 26, and other components, and the connection block 22, the circuit board 23, and other components are disposed in the mounting cavity of the middle frame 12. Clamping protrusion 1222 and hook 1223 are arranged on the inner wall of middle frame 12, connecting block 22 is located between clamping protrusion 1222 and hook 1223, clamping protrusion 1222 is clamped on one side of connecting block 22, and hook 1223 is hooked on the other side of connecting block 22. The middle frame 12 in this embodiment is square, the latch protrusion 1222 is disposed on an inner wall of a side wall of the middle frame 12, and the hook 1223 is disposed on an inner wall of an adjacent side wall. One end of the connecting block 22 is attached to the inner wall provided with the clamping protrusion 1222, the other end is attached to the inner side of the clamping hook 1223, and the two ends of the upper portion are limited by the clamping protrusion 1222 and the clamping hook 1223 respectively.

As shown in fig. 5 and 6, the power plug 21 is disposed on the connecting block 22, the side wall 122 is disposed with an opening 1221, and the power plug 21 can be hidden in the opening 1221 or extend out of the opening 1221 and expose out of the side wall 122. Specifically, the power supply pin 21 includes two pins spaced apart from each other on the insulating block 211, and the pin 212 is rotatably provided on the connecting block 22 following the insulating block 26. The number of the openings 1221 is two, and the openings are provided corresponding to the two pins, respectively. The insulating block 26 is provided with a rotating shaft 261, the connecting block 22 is provided with two clamping blocks 221 at intervals, the rotating shaft 261 is clamped between the two clamping blocks 221, and the rotating shaft 261 can rotate between the two clamping blocks 221. The pins are initially located in the openings 1221, and when the power adapter needs to be used, the pins are turned by 90 degrees to be exposed outside the middle frame 12, so that the pins can be conveniently plugged with a socket for charging; when the power adapter does not need to be used, the plug pins are reversely rotated by 90 degrees and then are accommodated in the openings 1221, so that the power adapter occupies a smaller space.

The rotation shaft 261 is provided with a stop protrusion 2611 protruding thereon for limiting the insulation block 26. Specifically, when the pin is received in the opening 1221, the stopping protrusion 2661 is located on the inner wall abutting against the free end of one of the clamping blocks 221, and when the pin is exposed out of the middle frame 12, the stopping protrusion 2611 is located between the two clamping blocks 221 and located inside the end of the clamping block 221 away from the free end, so as to limit the pin, and the pin cannot rotate by itself. When the pins need to rotate out of the openings 1221 and then expose in the middle frame 12, a certain external force needs to be applied manually to move the locking protrusions 2611 from the free end of the locking block 221 to the other end.

As shown in fig. 7 and 8, the first connection terminals 24 are disposed on the connection block 22 and can be electrically contacted with the pin assembly 21, the number of the first connection terminals 24 is two, and two first connection terminals 24 are electrically connected to two pins one by one respectively. The abutting portion 211 is provided at the rear end of the power pin 21, and the abutting portion 211 is elastically pressed against the rear end of the first connection terminal 24, so that the power pin 21 and the first connection terminal 24 are electrically conducted. The second connection terminal 25 is disposed on the circuit board 23 and is plugged with the first connection terminal 24. The number of the second connection terminals 25 is correspondingly two, and the second connection terminals 25 are arranged on the circuit board 23 in a plugging manner.

One of the first connection terminal 24 and the second connection terminal 25 is provided with an insertion portion 251, and the other is provided with a clamping portion 241 fitted with the insertion portion 251. Preferably, in the present embodiment, the insertion portion 251 is provided on the second connection terminal 25, and the engagement portion 241 is provided on the first connection terminal 24. The insertion portion 251 is an insertion piece folded by the free end of the second connection terminal 25, the clamping portion 241 is a flange and a connection piece arranged at intervals, the free end of the first connection terminal 24 is folded to form a flange, and the portion close to the free end is bent to one side of the flange to form a connection piece.

The pin assembly and the circuit board 23 are connected in abutment by the first connection terminal 24 and the second connection terminal 25 without a wire connection; the connecting wires do not need to be welded before assembly, and only need to be inserted in the assembly process, so that the assembly is simple and convenient. In the assembling process, the power plug 21, the connecting block 22, the first connecting terminal 24 and the insulating block 26 are assembled, and then are installed in the installation cavity of the middle frame 12, and then the circuit board 23 and the second connecting terminal 25 are installed, in the process of installing the circuit board 23 and the second connecting terminal 25 in the installation cavity, the inserting portion 251 is inserted into the clamping portion 241, so that the first connecting terminal 24 and the second connecting terminal 25 are abutted to electrically conduct the power plug 21 and the circuit board 23.

As shown in fig. 9-11, the inner side of the top cover 11 is provided with a supporting column 111, and the supporting column 111 abuts against the circuit board 23. The support posts 111 position and support the top cover 11. The inner side wall of the mounting opening 123 of the middle frame 12 is provided with a step-shaped step, and the outer edge of the top cover 11 is provided with a step-shaped protrusion extending downwards, and the step-shaped protrusion is abutted downwards against the step-shaped step. Specifically, a first groove 1226 is concavely arranged at an opening of the installation cavity, a second groove 1227 is concavely arranged below the first groove 1226, the inner diameter of the first groove 1226 is larger than that of the second groove 1227, and the first groove 1226 and the second groove 1227 form a step-shaped step. The top cover 11 extends downwards to form a first protrusion 112, the first protrusion 112 extends downwards to form a second protrusion 113, the outer diameter of the second protrusion 113 is smaller than that of the first protrusion 112, and the first protrusion 112 and the second protrusion 113 form a step-shaped protrusion. The top cover 11 is buckled on the mounting opening 123, the stepped protrusion is inserted into the stepped groove, and the stepped protrusion abuts against the stepped step downwards, and then the top cover is fixedly connected in an adhesion mode. The bottom cover sheet 13 and the middle frame 12 are fixedly connected by means of adhesion.

With continued reference to fig. 1, the side wall 122 of the middle frame 12 is provided with a first socket 1224 and a second socket 1225, and the first socket 1224 and the second socket 1225 are used for inserting a mating connector to communicate with the main body assembly. Other components and parts include USB bayonet joint and Type-C bayonet joint, and the USB bayonet joint is located the inboard of first interface 1224, and Type-C bayonet joint is located the inboard of second interface 1225. The USB connector is inserted into the first interface 1224 and can be connected with a USB plug to connect with a power adapter; the Type-C connector can be connected with the Type-C plug connector in the second plug interface 1225 to be connected with a power adapter. In this embodiment, the first and

second sockets

1224 and 1225 are located on the same sidewall 122 of the middle frame and are disposed opposite to the openings 1221 for accommodating the power pins 21, so that the normal use of the first and

second sockets

1224 and 1225 is not affected when the power pins 21 are plugged into the receptacle.

It is obvious that the above embodiments of the present invention are only examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A power adapter, comprising:

the shell (1) comprises a top cover (11) and a middle frame (12), wherein a mounting opening (123) is formed in the middle frame (12), and the top cover (11) is fixedly connected to the mounting opening (123);

the middle frame (12) is of an integrally formed structure and comprises a bottom wall (121) and an annular side wall (122) integrally connected with the bottom wall (121), an installation cavity is formed between the bottom wall (121) and the side wall (122), the bottom wall (121) is opposite to the installation opening (123) in the vertical direction, a first insertion opening (1224) is formed in the side wall (122) and used for inserting a butting connector, and the top cover (11) completely covers the top of the installation cavity;

the main body assembly is downwards installed in the installation cavity and comprises a power supply pin (21), a connecting block (22), a circuit board (23), a first connecting terminal (24) and a second connecting terminal (25), the power supply pin (21) is arranged on the connecting block (22), an opening (1221) is formed in the side wall (122), and the power supply pin (21) can be hidden in the opening (1221) or extend out of the opening (1221) and is exposed out of the side wall (122);

the first connecting terminal (24) is arranged on the connecting block (22) and can be electrically conducted with the power supply pin (21), and the second connecting terminal (25) is arranged on the circuit board (23) and is abutted against the first connecting terminal (24).

2. The power adapter according to claim 1, wherein a clamping protrusion (1222) and a hook (1223) are arranged on the inner wall of the middle frame (12), the connecting block (22) is located between the clamping protrusion (1222) and the hook (1223), the clamping protrusion (1222) is clamped on one side of the connecting block (22), and the hook (1223) is hooked on the other side of the connecting block (22).

3. The power adapter according to claim 1, wherein the main body assembly further comprises an insulating block (26), the power pins (21) are disposed on the insulating block (26), a rotating shaft (261) is disposed on the insulating block (26), two clamping blocks (221) are disposed on the connecting block (22) at intervals, and the rotating shaft (261) is clamped between the two clamping blocks (221).

4. The power adapter as claimed in claim 3, wherein the rotation shaft (261) is provided with a stop protrusion (2611) protruding thereon for limiting the insulation block (26).

5. The power adapter as claimed in claim 1, wherein the first connection terminal (24) and the second connection terminal (25) are provided with an insertion portion (251) on one side and a snap-in portion (241) which fits with the insertion portion (251) on the other side.

6. A power adapter as claimed in claim 1, characterized in that the top cover (11) is provided with downwardly extending support columns (111), which support columns (111) are directed downwards against the circuit board (23).

7. The power adapter as claimed in claim 6, characterized in that the housing (1) further comprises a bottom cover sheet (13), and the bottom surface of the bottom wall (121) is provided with a recess for accommodating and fixing the bottom cover sheet (13).

8. The power adapter as claimed in claim 1, characterized in that the surface of the housing (1) has flow marks.

9. The power adapter as claimed in claim 1, characterized in that the top edge of the middle frame (12) is provided with an arc surface, the top edge of the periphery of the top cover (11) is provided with an arc surface, and the upper surface of the top cover (11) is higher than the middle frame (12).

10. The power adapter as claimed in claim 1, wherein the inner side wall of the mounting opening (123) is provided with a stepped step, and the outer edge of the top cover (11) is provided with a downwardly extending stepped projection which abuts downwardly against the stepped step.