CN223245938U - Power adapter convenient to change - Google Patents

Abstract

The utility model relates to the technical field of adapters, in particular to a power adapter convenient to replace, which comprises a body and an inserting head, wherein a first conductive pin is arranged on the front surface of the inserting head, a mounting convex ring is arranged on the back surface of the inserting head, the rear end of the first conductive pin penetrates through the inserting head, a mounting plate, a PCB (printed circuit board) and a second conductive pin are arranged in the body, a mounting groove is formed between the mounting plate and a mounting cavity and is used for being assembled with the mounting convex ring, the mounting convex ring is detachably connected with the mounting groove through a rotating part, the rear end of the second conductive pin is electrically connected with the PCB, the front end of the second conductive pin penetrates through the mounting plate, when the inserting head is assembled with the mounting groove, the front end of the second conductive pin is abutted against the rear end of the first conductive pin, and a locking part used for preventing the inserting head from reversely rotating is arranged between the mounting groove and the mounting convex ring.

Description

Power adapter convenient to change

Technical Field

The utility model relates to the technical field of adapters, in particular to a power adapter convenient to replace.

Background

The adapter can convert alternating current provided by the power grid into direct current suitable for use by the electronic device. Most notebook, cell phone and tablet computers require 5V, 12V or 19V dc power to charge. The adapter and rectifier inside the adapter are responsible for accomplishing this conversion process. And the output current can be regulated according to the requirements of the equipment.

However, at present, because the plug standards of the various countries are different, the power adapter cannot be used universally in the global scope, which not only brings inconvenience to users who often travel out of the country, but also causes waste of resources. Although the existing plug-replaceable adapter solves the problem to a certain extent, the China patent with the application number of CN202221669735.X discloses a plug-replaceable power adapter, but the structure is complex, the volume is large, and the power adapter is inconvenient to carry.

Disclosure of Invention

The utility model aims to overcome the defects and provide a power adapter which is convenient to replace, has a simple structure, is firmly connected and can be adapted to sockets of different countries.

The power adapter comprises a body and a plug connector, wherein a first conductive pin is arranged on the front surface of the plug connector, a mounting convex ring is arranged on the back surface of the plug connector, the rear end of the first conductive pin penetrates through the plug connector, a mounting plate, a PCB and a second conductive pin are arranged in the body, the mounting plate divides the body into a circuit cavity and a mounting cavity, the PCB is arranged in the circuit cavity, a mounting groove is formed between the mounting plate and the mounting cavity and is used for being assembled with the mounting convex ring, the rear end of the second conductive pin is electrically connected with the PCB, the front end of the second conductive pin penetrates through the mounting plate, when the plug connector is assembled with the mounting groove, the front end of the second conductive pin is abutted against the rear end of the first conductive pin, the mounting convex ring is detachably connected with the mounting groove through a rotating part, and a locking part is arranged between the mounting groove and the mounting convex ring and is used for preventing the plug connector from reversely rotating.

The utility model further provides that the rotating component comprises a first clamping groove and a first clamping block used for being assembled with the first clamping groove, wherein the first clamping groove is arranged on the outer side wall of the installation convex ring, the first clamping block is arranged on the inner wall of the installation groove, and the first clamping groove comprises a vertical part and a horizontal part which are mutually connected;

The locking component comprises a locking groove, a locking lug, a first elastic arm and a pressing block, wherein a first through hole for accommodating the locking lug is formed in the mounting plate, the locking lug is connected with the first through hole through the first elastic arm, the pressing block is connected with the locking lug and used for controlling the locking lug to protrude out of the first through hole or be hidden in the first through hole, the locking groove is formed in the mounting convex ring at a position corresponding to the locking lug, a yielding hole for accommodating the pressing block is formed in the side wall of the mounting groove, and the first through hole is communicated with the yielding hole.

The utility model further provides that the second conductive pin comprises a first metal sheet and a second metal sheet which are electrically connected with the PCB, wherein the first metal sheet and the second metal sheet comprise a hook part, a connecting part, an extension part and a pin part which are sequentially connected, the hook part is used for being assembled with the PCB, the pin part penetrates through the mounting plate and then stretches into the mounting cavity, and the pin part is perpendicular to the extension part.

The utility model further provides that the extending part is provided with a mounting hole, and the lead part is clamped with the mounting hole.

The utility model further provides that the mounting convex ring is provided with an insulating baffle plate, and the insulating baffle plate is provided with an arc-shaped hole for the front end of the second conductive pin to pass through.

The utility model further provides that the width of the extension part of the first metal sheet gradually becomes larger, and the extension part of the second metal sheet is in an n shape.

The mounting plate is further provided with a second through hole, a second elastic arm is arranged in the second through hole, the second elastic arm comprises a left arm part, a right arm part and a base part connected with the second through hole, the left arm part, the right arm part and the base part form a Y-shaped structure, the left arm part is provided with a lead part of the first metal sheet, and the right arm part is provided with a lead part of the second metal sheet.

The utility model further provides that the shape of the connecting part of the first metal sheet is consistent with that of the connecting part of the second metal sheet, the connecting part comprises a transverse block and a vertical block which are connected end to end, and the transverse block and the vertical block form an L-shaped structure.

The utility model has the advantages that the plug connector and the body can be detachably connected by arranging the rotating part, and the plug connector and the body can be locked by arranging the locking part, so that the connection is firm.

Drawings

The utility model will be further described with reference to the accompanying drawings, in which embodiments do not constitute any limitation of the utility model, and other drawings can be obtained by one of ordinary skill in the art without inventive effort from the following drawings.

FIG. 1 is a schematic view of an assembled body and plug according to the present utility model;

FIG. 2 is an exploded view of the present utility model;

FIG. 3 is a schematic structural view of the body of the present utility model;

FIG. 4 is a front view of the body of the present utility model;

FIG. 5 is a schematic view of a connector according to the present utility model;

FIG. 6 is a schematic illustration of another embodiment of a connector of the present utility model;

FIG. 7 is a schematic diagram of a second conductive pin according to the present utility model;

Fig. 8 is an exploded view of the body of the present utility model.

The circuit board comprises a body, 11, a mounting plate, 12, a PCB (printed circuit board), 13, a circuit cavity, 14, a mounting groove, 15, a first clamping block, 2, a plug connector, 21, a mounting convex ring, 22, a first clamping groove, 221, a vertical part, 222, a transverse part, 23, an insulating baffle, 24, an arc-shaped hole, 25, a first conductive pin, 31, a second through hole, 32, a second elastic arm, 33, a left arm, 34, a right arm, 35, a base part, 61, a locking groove, 62, a locking lug, 63, a pressing block, 64, a first through hole, 65, a first elastic arm, 66, a yielding hole, 4, a second conductive pin, 51, a hook part, 52, a connecting part, 53, an extension part, 54 and a pin part;

Detailed Description

In order that the invention may be readily understood, a more complete description of the invention will be rendered by reference to the appended drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete. It will be understood that when an element is referred to as being "fixed to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "left," "right," and the like are used herein for illustrative purposes only.

As shown in fig. 1-8, the power adapter for easy replacement of the present embodiment includes a body 1 and a plug 2, wherein a first conductive pin 25 is disposed on the front surface of the plug 2, a mounting convex ring 21 is disposed on the back surface of the plug 2, a rear end of the first conductive pin 25 is disposed through the plug 2, a mounting plate 11, a PCB board 12 and a second conductive pin 4 are disposed in the body 1, the mounting plate 11 separates the body 1 into a circuit cavity 13 and a mounting cavity, the PCB board 12 is disposed in the circuit cavity 13, a mounting groove 14 is formed between the mounting plate 11 and the mounting cavity, the mounting groove 14 is used for being assembled with the mounting convex ring 21, a rear end of the second conductive pin 4 is electrically connected with the PCB board 12, a front end of the second conductive pin 4 is disposed through the mounting plate 11, when the plug 2 is assembled with the mounting groove 14, a front end of the second conductive pin 4 is connected with the rear end of the first conductive pin 25 in a clamping groove 21, a clamping groove 22 is disposed between the mounting convex ring 21 and the first conductive pin 14, a first groove 22 is formed between the two-shaped groove 22 and a vertical groove 22 and a horizontal groove 221 is formed between the two-shaped side wall parts of the first groove 15 and the first groove and a two-shaped groove, and a two-shaped groove portion of the two-shaped fastener part is formed by a vertical groove 221.

The shape of the front section of the first conductive leg 25 on a different plug 2 is set according to the shape of a different national socket. By changing the different plug connectors 2, the first conductive pins 25 with different shapes can be changed, and can be plugged into sockets with different types in different countries, so that the socket can be used in different countries. The body 1 is also provided with a power supply line for supplying power to the electric appliance, and the power supply line is electrically connected with the PCB 12.

Specifically, when it is necessary to mount the socket 2 to the body 1, the mounting collar 21 is first aligned with the mounting groove 14 so that the first clamp block 15 is pushed in aligned with the vertical portion 221 of the first clamp groove 22, and when reaching the bottom of the vertical portion 221, the mounting collar 21 is rotated so that the first clamp block 15 is pushed in along the lateral portion 222. When the first clamping block 15 reaches the tail end of the transverse portion 222, the assembly is completed, at this time, the rear end of the first conductive pin 25 on the plug connector 2 is abutted against the front end of the second conductive pin 4 on the body 1, so after the first conductive pin 25 of the plug connector 2 is electrified, alternating current electric energy on the socket sequentially passes through the first conductive pin 25 and the second conductive pin 4 and then reaches the PCB 12, and after the PCB 12 converts alternating current into voltage and current required by an electrical appliance, the power supply line supplies power for the electrical appliance.

By providing the rotating member, the direction of the connector 2 after installation can be limited as compared with the threaded connection, so that sufficient contact between the first conductive leg 25 and the second conductive leg 4 can be ensured, and the power supply can be stably supplied to the power supply.

As shown in fig. 1-8, in the power adapter of this embodiment, a locking component for preventing the plug connector (2) from rotating reversely is disposed between the mounting groove (14) and the mounting collar (21), the locking component includes a locking groove 61, a locking projection 62, a first elastic arm 65 and a pressing block 63, a first through hole 64 for accommodating the locking projection 62 is disposed on the mounting plate 11, the locking projection 62 is connected with the first through hole 64 through the first elastic arm 65, the pressing block 63 is connected with the locking projection 62, the locking projection 62 is controlled to protrude out of the first through hole 64 or be hidden in the first through hole 64, the locking groove 61 is disposed on the mounting collar 21 corresponding to the position of the locking projection 62, a yielding hole 66 for accommodating the pressing block 63 is disposed on a side wall of the mounting groove 14, and the first through hole 64 is disposed in communication with the yielding hole 66.

In order to avoid that, in use, a reverse rotation is generated between the socket 2 and the body 1 due to various collisions, resulting in poor contact between the first and second conductive pins 25, 4 after displacement, locking means are provided.

Specifically, the locking groove 61 is formed on the bottom surface of the mounting convex ring 21, when the plug 2 is rotated to enable the first clamping block 15 to enter along the vertical portion 221, the bottom surface of the mounting convex ring 21 presses down the locking projection 62 to the first through hole 64 so as to facilitate the mounting convex ring 21 to be inserted into the mounting groove 14, when the first clamping block 15 is pushed into the end of the transverse portion 222, due to the existence of the locking groove 61, the locking projection 62 is reset under the action of the first elastic arm 65 and is clamped with the locking groove 61, and at the moment, the mounting convex ring 21 and the mounting groove 14 are mutually fixed and firmly connected. The situation that the mounting convex ring 21 accidentally drops to cause poor contact and no power on is avoided. When another type of plug connector 2 needs to be replaced, the locking state of the locking component is firstly released, the installation convex ring 21 is reversely rotated, the pressing block 63 is downwards pressed, the locking convex block 62 connected with the pressing block 63 is driven to be retracted into the first through hole 64 in the pressing process, when the locking convex block 62 is completely embedded in the first through hole 64, the installation convex ring 21 and the installation groove 14 are not locked, and then the plug connector 2 is reversely rotated, so that the first clamping block 15 is withdrawn out of the first clamping groove 22, and the plug connector 2 can be detached from the body 1. When the plug connector 2 is detached, the locking lug 62 can be naturally reset under the action of the first elastic arm 65.

As shown in fig. 7, in the power adapter of this embodiment, the second conductive pin 4 includes a first metal sheet and a second metal sheet, which are electrically connected to the PCB 12, and the first metal sheet and the second metal sheet each include a hook portion 51, a connection portion 52, an extension portion 53, and a pin portion 54, which are sequentially connected, where the hook portion 51 is used for assembling with the PCB 12, the pin portion 54 extends into the mounting cavity after passing through the mounting board 11, and the pin portion 54 is disposed perpendicular to the extension portion 53. The utility model further provides that the shape of the connecting part 52 of the first metal sheet is consistent with the shape of the connecting part 52 of the second metal sheet, the connecting part 52 comprises a transverse block and a vertical block which are connected end to end, and the transverse block and the vertical block form an L-shaped structure.

Specifically, the first metal sheet and the second metal sheet are respectively used for connecting with a live wire and a neutral wire, the hook portion 51 is the rear end of the second conductive pin 4, the pin portion 54 is the front end of the second conductive pin 4, and the lengths of the first metal sheet and the second metal sheet can be prolonged by arranging the connecting portion 52 and the extending portion 53, so that the elasticity of the second conductive pin 4 is increased, and the abutting between the second conductive pin and the first conductive pin is firmer. On the other hand, because the space in the body 1 is limited, in order to more optimally utilize the space of the product, the L-shaped connecting part 52 is arranged, so that the length of the first metal sheet and the second metal sheet can be prolonged, the transverse space of the body 1 is not occupied, and the whole volume of the body 1 is more compact. On the other hand, since the positions of the pins of the first conductive pins 25 are relatively fixed, if the connection portion 52 and the extension portion 53 are not provided, the pin portion 54 will be directly plugged on the PCB 12, so that a space needs to be reserved for the pin portion 54 corresponding to the position of the first conductive pin 25 during the circuit design of the PCB 12, which is complex and troublesome in design. After the connecting portion 52 and the extending portion 53 are provided, in practice, in the process of designing the PCB board 12, only an interface needs to be reserved on one side of the PCB board 12, and the first metal sheet and the second metal sheet are used for connecting simply and effectively.

As shown in fig. 7, in the power adapter of this embodiment, the extension portion 53 is provided with a mounting hole (not shown), and the pin portion 54 is engaged with the mounting hole. The above arrangement can reduce the production cost compared to an integrated design.

As shown in fig. 5, in the power adapter of this embodiment, an insulating baffle 23 is disposed on the mounting collar 21, and the insulating baffle 23 is provided with an arc hole 24 for passing the front end of the second conductive pin 4. By providing the insulating barrier 23, the rear end of the first conductive pin 25 can be protected while not blocking the insertion of the second conductive pin 4.

As shown in fig. 7, in the power adapter of this embodiment, the width of the extension portion 53 of the first metal sheet is gradually increased, and the extension portion 53 of the second metal sheet is shaped like an "n". The arrangement can increase the elasticity of the second conductive pin 4, ensure good contact between the first conductive pin 25 and the second conductive pin 4, and ensure more firm connection.

As shown in fig. 1-4, in the power adapter of this embodiment, a second through hole 31 is formed in the mounting board 11, a second elastic arm 32 is disposed in the second through hole 31, the second elastic arm 32 includes a left arm portion 33, a right arm portion 34, and a base portion 35 connected to the second through hole 31, the left arm portion 33, the right arm portion 34, and the base portion 35 form a "Y" structure, the left arm portion 33 is provided with a pin portion 54 of the first metal sheet, and the right arm portion 34 is provided with a pin portion 54 of the second metal sheet.

When the second through hole 31 and the second elastic arm 32 are not provided, the first conductive pin 25 and the second conductive pin 4 are in hard contact, the production precision requirements on the first conductive pin and the second conductive pin are high, the contact between the first conductive pin and the second conductive pin is poor due to the fact that the contact is not too short, and the contact between the first conductive pin and the second conductive pin is counteracted due to the fact that the plug connector 2 cannot be mounted on the body 1 due to the fact that the contact is too long. By arranging the second through hole 31 and the second elastic arm 32, when the plug connector 2 is mounted on the body 1, the rear end of the first conductive pin can drive the second elastic arm 32 to slightly deform when contacting the front end of the second conductive pin 4, and the second elastic arm is abducted to the first conductive pin, so that the plug connector 2 can be normally mounted on the body 1, and meanwhile, the contact between the two pins is firm.

The foregoing description is only one preferred embodiment of the utility model, and therefore all changes and modifications that come within the meaning and range of equivalency of the structures, features and principles of the utility model are intended to be embraced therein.

Claims (9)

1. The power adapter convenient to replace is characterized by comprising a body (1) and a plug connector (2);

The front surface of the plug connector (2) is provided with a first conductive pin (25), the back surface of the plug connector (2) is provided with a mounting convex ring (21), and the rear end of the first conductive pin (25) penetrates through the plug connector (2);

The PCB (12) is arranged in the circuit cavity (13), a mounting groove (14) is formed between the mounting plate (11) and the mounting cavity, and the mounting groove (14) is used for being assembled with the mounting convex ring (21);

The rear end of the second conductive pin (4) is electrically connected with the PCB (12), and the front end of the second conductive pin (4) penetrates through the mounting plate (11), and when the plug connector (2) is assembled with the mounting groove (14), the front end of the second conductive pin (4) is abutted with the rear end of the first conductive pin (25);

The mounting convex ring (21) is detachably connected with the mounting groove (14) through a rotating part, and a locking part for preventing the plug connector (2) from rotating reversely is arranged between the mounting groove (14) and the mounting convex ring (21).

2. The power adapter for easy replacement according to claim 1, wherein the rotating member comprises a first clamping groove (22) and a first clamping block (15) for being assembled with the first clamping groove (22), the first clamping groove (22) is arranged on the outer side wall of the mounting convex ring (21), the first clamping block (15) is arranged on the inner wall of the mounting groove (14), the first clamping groove (22) comprises a vertical part (221) and a transverse part (222) which are connected with each other, and the vertical part (221) and the transverse part (222) form an inverted L shape;

3. A power adapter for easy replacement as set forth in claim 1, wherein the locking member comprises a locking groove (61), a locking projection (62), a first elastic arm (65), and a pressing block (63);

The mounting plate (11) is provided with a first through hole (64) for accommodating the locking lug (62), the locking lug (62) is connected with the first through hole (64) through a first elastic arm (65), the pressing block (63) is connected with the locking lug (62) and used for controlling the locking lug (62) to protrude out of the first through hole (64) or be embedded in the first through hole (64), and the mounting convex ring (21) is provided with the locking groove (61) at a position corresponding to the locking lug (62);

The side wall of the mounting groove (14) is provided with a yielding hole (66) for accommodating the pressing block (63), and the first through hole (64) is communicated with the yielding hole (66).

4. The power adapter of claim 1, wherein the second conductive leg (4) comprises a first metal sheet and a second metal sheet each electrically connected to the PCB (12);

The first metal sheet and the second metal sheet comprise a hook part (51), a connecting part (52), an extension part (53) and a pin part (54) which are sequentially connected, the hook part (51) is used for being assembled with the PCB (12), the pin part (54) penetrates through the mounting plate (11) and then stretches into the mounting cavity, and the pin part (54) is perpendicular to the extension part (53).

5. The power adapter for easy replacement as recited in claim 4, wherein the extension portion (53) is provided with a mounting hole, and the pin portion (54) is engaged with the mounting hole.

6. The power adapter for easy replacement according to claim 1, wherein the mounting collar (21) is provided with an insulating baffle (23), and the insulating baffle (23) is provided with an arc-shaped hole (24) for passing the front end of the second conductive leg (4).

7. The power adapter according to claim 4, wherein the extension (53) of the first metal sheet has a gradually increasing width, and the extension (53) of the second metal sheet has an "n" shape.

8. The power adapter for easy replacement according to claim 4, wherein the mounting plate (11) is provided with a second through hole (31), a second elastic arm (32) is arranged in the second through hole (31), the second elastic arm (32) comprises a left arm part (33), a right arm part (34) and a base part (35) connected with the second through hole (31), the left arm part (33), the right arm part (34) and the base part (35) form a Y-shaped structure, the left arm part (33) is provided with a lead part (54) of the first metal sheet, and the right arm part (34) is provided with a lead part (54) of the second metal sheet.

9. The power adapter for easy replacement as recited in claim 4, wherein the shape of the connecting portion (52) of the first metal sheet is identical to the shape of the connecting portion (52) of the second metal sheet, the connecting portion (52) comprises a transverse block and a vertical block connected end to end, and the transverse block and the vertical block form an L-shaped structure.