CN213185857U

CN213185857U - Power adapter

Info

Publication number: CN213185857U
Application number: CN202021884197.7U
Authority: CN
Inventors: 刘天明; 辛倜; 周正为; 夏远红
Original assignee: Zhongshan Mls Photoelectric Co ltd
Current assignee: Zhongshan Mulinsen Power Supply Co ltd
Priority date: 2020-09-01
Filing date: 2020-09-01
Publication date: 2021-05-11
Anticipated expiration: 2030-09-01

Abstract

The utility model provides a power adapter, which comprises a hollow shell, wherein a circuit board is arranged in the shell, the circuit board is electrically connected with a first conductive piece, the first conductive piece is spliced with pins extending out of the shell, so that mutual electric connection is realized, and the pins are electrically connected with external commercial power; an output plug extending out of the shell is inserted in the shell, the output plug is provided with a conductive column, the circuit board is further electrically connected with a second conductive piece, and the second conductive piece is inserted in the conductive column, so that mutual electrical connection is realized. The power adapter can simplify the assembly process, improve the assembly efficiency and reduce the cost.

Description

Power adapter

Technical Field

The utility model relates to an adapter technical field especially relates to a power adapter.

Background

A conventional power adapter includes a hollow housing, a circuit board, a conductive member, pins, and wires. Before assembly, the conductive parts are riveted on the pins in advance. When the circuit board is assembled, the circuit board is arranged in the hollow shell, the pin is in contact connection with a welding disc of the circuit board, and the pin is also electrically connected with external commercial power to realize power supply input; the power output adopts a wire welding process, the wire is welded on the circuit board, and after the wire is welded, the wire can be connected with external electric equipment to supply power output.

The riveting and welding process is complicated, and time, material and labor are consumed. Therefore, the traditional power adapter has the disadvantages of complicated assembly process, low assembly efficiency and high production cost.

SUMMERY OF THE UTILITY MODEL

In order to solve the problem, the utility model provides a power adapter, this power adapter can simplify the equipment process, promotes the packaging efficiency to can reduce cost.

The utility model discloses a power adapter, which comprises a hollow shell, wherein a circuit board is arranged in the shell, the circuit board is electrically connected with a first conductive piece, the first conductive piece is spliced with a pin extending out of the shell, and the pin is also electrically connected with external commercial power; an output plug extending out of the shell is further inserted into the shell, the output plug is provided with a conductive column, the circuit board is further electrically connected with a second conductive piece, and the second conductive piece is inserted into the conductive column.

Preferably, the housing is provided with a hollow cavity for mounting the output plug, the cavity is provided with a mounting hole, an insertion strip protruding out of the inner side wall of the cavity is arranged in the cavity, the output plug is mounted in the cavity, and the insertion strip is in contact with the outer side wall of the output plug, so that the output plug is tightly matched with the cavity; and the conductive column penetrates through the mounting hole and then extends into the shell, and is electrically connected with the second conductive piece.

Further preferably, the inner side wall of the cavity is further provided with a protruding block, and the output plug is correspondingly provided with a groove clamped with the protruding block.

Preferably, the second conductive member includes a conductive pin and a conductive portion integrally formed and linearly distributed; the circuit board is provided with conductive holes corresponding to the conductive pins, and the conductive pins are inserted into the conductive holes, so that the conductive pins are electrically connected with the circuit board; the middle of the conductive part is provided with a clamping opening, and the conductive column is inserted into the clamping opening, so that the conductive part is electrically connected with the conductive column.

Preferably, the power adapter is of a vertical structure, the first conductive piece includes conductive pins and conductive portions which are integrally formed and linearly distributed, the circuit board is provided with conductive holes corresponding to the conductive pins, the conductive pins are inserted into the conductive holes, so that the conductive pins and the circuit board are electrically connected, a clamping opening is formed in the middle of the conductive portion, and the plug pins are inserted into the clamping opening, so that the conductive portions and the plug pins are electrically connected;

or the power adapter is of a side-inserting structure; the first conductive piece comprises a bending part and a conductive part which are integrally formed, the bending part penetrates out of the lower portion of the circuit board and then is electrically connected with the back face of the circuit board, a clamping opening is formed in the middle of the conductive part, and the plug pin is inserted into the clamping opening, so that the conductive part is electrically connected with the plug pin.

Preferably, the conductive part comprises a first elastic sheet and a second elastic sheet which are connected with the conductive pins, and free ends of the first elastic sheet and the second elastic sheet extend outwards, so that the clamping opening is formed between the first elastic sheet and the second elastic sheet; the free ends of the first elastic sheet and the second elastic sheet contract inwards and then expand outwards.

Further preferably, the conductive pin is provided with a block extending to the outside thereof for preventing the conductive pin from falling off the circuit board.

Preferably, the upper end of the pin is provided with a plurality of protruding strips horizontally arranged on the outer side surface of the pin, and an insertion groove is formed between every two adjacent protruding strips, so that the first elastic sheet and the second elastic sheet forming the clamping opening are both clamped in the insertion groove.

Preferably, two opposite inner side walls of the housing are respectively and correspondingly provided with a first positioning groove and a second positioning groove, and two sides of the circuit board are respectively installed in the first positioning groove and the second positioning groove; the bottom and the top in the shell are respectively and correspondingly provided with a first fixed block and a second fixed block, and the first fixed block and the second fixed block are respectively contacted with the lower end face and the upper end face of the circuit board.

Preferably, the housing comprises a cover body and a hollow shell body hermetically connected with the cover body, and the circuit board is mounted in the shell body; the cover body and the shell are welded through ultrasonic waves, the cover body is further provided with an installation block, and the shell is provided with an installation groove connected with the installation block in a clamping mode.

Compared with the prior art, the utility model discloses at least, including following beneficial effect:

the utility model discloses an among the power adapter, because between shell and the output plug, first electrically conductive piece with participate in between, and the second electrically conductive piece with lead the mode that all adopts grafting between the electrical pillar and carry out the electricity and be connected, therefore, can realize the exempting from welding wire of output plug and shell and be connected, and can realize that output plug leads between electrical pillar and the circuit board, and participate in the fast assembly between the circuit board, and then can simplify this power adapter's equipment process, reduce this power adapter's the processing degree of difficulty, improve the packaging efficiency, and reduce the cost of labor of this power adapter processing, material cost and manufacturing cost.

Drawings

Fig. 1 is a schematic structural view of a power adapter of embodiment 1 in an assembled state.

Fig. 2 is a sectional view of the power adapter after the wire of the output plug is omitted in embodiment 1.

Fig. 3 is an exploded schematic view of the power adapter with a wire harness and an output plug omitted in embodiment 1.

Fig. 4 is a schematic diagram of the internal structures of the cover and the housing in the power adapter of embodiment 1.

Fig. 5 is an external configuration diagram of a cover in the power adapter of embodiment 1.

Fig. 6 is a schematic structural diagram of a first conductive member and a second conductive member in the power adapter of embodiment 1, and a second conductive member in the power adapter of embodiment 2.

Fig. 7 is a partial configuration diagram of the pins in the power adapters of

embodiments

1 and 2.

Fig. 8 is a schematic structural view of the power adapter of embodiment 2 in an assembled state.

Fig. 9 is an exploded schematic view of the power adapter with an output plug omitted in embodiment 2.

Fig. 10 is a schematic view of the internal structure of the housing in the power adapter of embodiment 2.

Fig. 11 is a schematic view of the internal structure of the cover in the power adapter of embodiment 2.

Fig. 12 is a schematic structural view of the first conductive member in the power adapter of embodiment 2.

The reference numbers illustrate: 1, a shell; 11 a cover body; 111 a mounting block; 12 a housing; 121, installing a groove; 13 a first positioning groove; 14 a second positioning groove; 15 a first fixing block; 16 a second fixed block; 17 a cavity; 171 mounting holes; 172 inserting strips; 173 a bump; 2, a circuit board; 21 a first conductive member; 22 a second electrically conductive member; 23 conductive pins; a 231 fixture block; 24 conductive vias; 25 bending part; 26 a conductive portion; 261 a first spring plate; 262 a second spring plate; 263 clamping opening; 3, outputting a plug; 31 grooves; 32 conductive posts; 4, inserting pins; 41 raised lines; 42 into the slot.

Detailed Description

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention is described in detail with reference to the accompanying drawings and the detailed description.

Example 1

Referring to fig. 1-2, the power adapter of the present embodiment is a vertical structure, and includes a hollow housing 1, a circuit board 2 installed in the housing 1, an output plug 3 extending out of the housing 1 and provided with a wire, and a pin 4 extending out of the housing 1 and electrically connected to an external commercial power, where the output plug 3 and the pin 4 are both electrically connected to the circuit board 2 in an inserting manner. Thus, the external commercial power is input through the pin 4 and then output to the output plug 3 through the circuit board 2, so as to be used by the equipment connected with the wires of the output plug 3.

Referring to fig. 2 to 3, the housing 1 includes a cover 11, and a hollow case 12 hermetically connected to the cover 11, and the circuit board 2 is mounted in the case 12. In order to realize the sealing connection between the cover 11 and the housing 12, the cover 11 is further provided with an installation block 111, and the housing 12 is provided with an installation groove 121 which is clamped and connected with the installation block 111; in this way, the mounting block 111 of the cover 11 is first engaged with the mounting groove 121 of the housing 12, and then the cover 11 and the housing 12 are ultrasonically welded to ensure the sealing performance and the waterproof performance of the cover 11 and the housing 12. Also, the cover 11 and the case 12 may be assembled by means of an external automated grasping apparatus to improve the assembly efficiency.

Referring to fig. 3-4, two opposite inner side walls of the housing 12 are provided with a first positioning groove 13 and a second positioning groove 14 which are aligned with each other, and two sides of the circuit board 2 are respectively installed inside the first positioning groove 13 and the second positioning groove 14; moreover, the bottom and the top in the shell 1 are respectively and correspondingly provided with a first fixing block 15 and a second fixing block 16, after the circuit board 2 is assembled inside the shell 1, the upper surface of the first fixing block 15 can be in close contact with the lower end surface of the circuit board 2, and the lower surface of the second fixing block 16 can be in close contact with the upper end surface of the circuit board 2. Thus, the circuit board 2 can be quickly and firmly assembled inside the housing 1 by using the first positioning groove 13, the second positioning groove 14, the first fixing block 15 and the second fixing block 16.

Referring to fig. 3 and 5, the output plug 3 is provided with a conductive column 32, the housing 1 is provided with a hollow cavity 17 for mounting the output plug 3, and the cavity 17 is provided with a mounting hole 171; and the cavity 17 is provided with a plug strip 172 and a projection 173 projecting from the inner side wall thereof, and the output plug 3 is correspondingly provided with a groove 31 engaged with the projection 173. In the process of installing the output plug 3 into the cavity 17, the conductive column 32 penetrates through the installation hole 171 and then extends into the interior of the housing 12 to be electrically connected with the circuit board 2; the plug strip 172 is tightly contacted with the outer side wall of the output plug 3, and the convex block 173 of the cavity 17 is clamped with the groove 31 of the output plug 3; so, can assemble grafting strip 172 and output plug 3 firmly to realize output plug 3 and the tight fit of cavity 17, and then realize the fast assembly of grafting strip 172 and output plug 3.

Referring to fig. 3 and 6, the circuit board 2 is electrically connected to a first conductive member 21 and a second conductive member 22 by plugging; the second conductive member 22 is inserted into the conductive pillar 32, so as to electrically connect the circuit board 2 and the conductive pillar 32. Specifically, the second conductive member 22 includes a conductive pin 23 and a conductive portion 26 that are integrally formed and linearly distributed, and the circuit board 2 is provided with a conductive hole 24 corresponding to the conductive pin 23, so that the conductive pin 23 can be inserted into the conductive hole 24, thereby implementing the insertion of the second conductive member 22 and the circuit board 2; the conductive portion 26 includes a first elastic sheet 261 and a second elastic sheet 262 both connected to the conductive pins 23, and free ends of the first elastic sheet 261 and the second elastic sheet 262 both extend outward, so that a clamping opening 263 is formed between the first elastic sheet 261 and the second elastic sheet 262, and the conductive pillar 32 is inserted into the clamping opening 263, thereby achieving electrical connection between the conductive portion 26 and the conductive pillar 32, that is, achieving insertion of the second conductive member 22 and the conductive pillar 32.

The first conductive member 21 and the pin 4 are electrically connected in a plugging manner, and the circuit board 2 is electrically connected with the first conductive member 21; in this way, the electrical connection of the circuit board 2 and the pins 4 can be achieved. The first conductive member 21 and the second conductive member 22 have substantially the same structure, and therefore, the circuit board 2 is also provided with a conductive hole 24 corresponding to the conductive pin 23 of the first conductive member 21, so that the conductive pin 23 of the first conductive member 21 is inserted into the conductive hole 24, thereby realizing the insertion of the first conductive member 21 and the circuit board 2, and the pin 4 is inserted into the clamping opening 263 of the first conductive member 21, thereby realizing the insertion of the first conductive member 21 and the pin 4.

To sum up, because the cavity 17 of the housing 1 of the power adapter and the output plug 3, the first conductive piece 21 and the circuit board 2, the first conductive piece 21 and the pin 4, the second conductive piece 22 and the circuit board 2, and the second conductive piece 22 and the conductive post 32 are all connected electrically in a plugging manner, therefore, the output plug 3 can be plugged with the cavity 17 of the housing 1 without a welding wire, and the conductive post 32 of the output plug 3 and the circuit board 2, and the pin 4 and the circuit board 2 can be plugged quickly, so that the assembly process of the power adapter can be simplified, the processing difficulty of the power adapter is reduced, the assembly efficiency is improved, and the labor cost, the material cost and the production cost of the power adapter are reduced.

Specifically, the free ends of the first resilient piece 261 and the second resilient piece 262 first contract inward and then expand outward. In this way, the closer to the end portions of the free ends of the first elastic sheet 261 and the second elastic sheet 262, the wider the clamping opening 263 is, so that the conductive post 32 or the pin 4 can be further conveniently and rapidly inserted into the clamping opening 263, and the farther from the end portions of the free ends of the first elastic sheet 261 and the second elastic sheet 262, the narrower the clamping opening 263 is, so that the conductive post 32 or the pin 4 inserted into the clamping opening 263 can be clamped between the first elastic sheet 261 and the second elastic sheet 262, thereby realizing firm insertion and preventing the conductive post 32 or the pin 4 from being separated from the corresponding clamping opening 263.

The conductive pin 23 is provided with a block 231 extending to the outside thereof, so that after the conductive pin 23 extends to the back of the circuit board 2 through the conductive hole 24 of the circuit board 2, the block 231 can be in close contact with the back of the circuit board 2 except the conductive hole 24 to prevent the inserted conductive pin 23 from separating from the conductive hole 24 of the circuit board 2.

Referring to fig. 3 and 7, the upper end of the pin 4 is provided with a plurality of protruding strips 41 horizontally arranged on the outer side surface thereof, and an inserting groove 42 is formed between two adjacent protruding strips 41, so that the first elastic sheet 261 and the second elastic sheet 262 forming the clamping opening 263 are both clamped in the inserting groove 42, and the protruding strips 41 can prevent the first elastic sheet 261 and the second elastic sheet 262 clamped in the inserting groove 42 from falling off, thereby realizing firm insertion.

Example 2

A power adapter of the present embodiment, referring to fig. 8 to 12, is substantially the same in structure as the power adapter of embodiment 1, except that: the power adapter of the embodiment is of a side-inserting structure; the first conductive member 21 includes a bending portion 25 and a conductive portion 26 that are integrally formed, the bending portion 25 and the conductive portion 26 are connected in a bending manner, the bending portion 25 penetrates out from the lower side of the circuit board 2 and then is electrically connected to the back side of the circuit board 2, the structure of the conductive portion 26 is substantially the same as that of the conductive portion 26 in embodiment 1, a clamping opening 263 is also provided in the middle of the conductive portion 26, and the pin 4 is inserted into the clamping opening 263, so that the conductive portion 26 and the pin 4 are electrically connected.

While preferred embodiments of the present invention have been described, additional variations and modifications of these embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including the preferred embodiments and all changes and modifications that fall within the scope of the embodiments of the invention.

The technical solution provided by the present invention is described in detail above, and the principle and the implementation of the present invention are explained by applying specific examples, and the description of the above examples is only used to help understanding the method and the core idea of the present invention; meanwhile, for the general technical personnel in the field, according to the idea of the present invention, there are changes in the specific implementation and application scope, to sum up, the content of the present specification should not be understood as the limitation of the present invention.

Claims

1. A power adapter is characterized by comprising a hollow shell, wherein a circuit board is installed in the shell and electrically connected with a first conductive piece, the first conductive piece is inserted with a pin extending out of the shell, and the pin is also electrically connected with external commercial power; an output plug extending out of the shell is further inserted into the shell, the output plug is provided with a conductive column, the circuit board is further electrically connected with a second conductive piece, and the second conductive piece is inserted into the conductive column.

2. The power adapter as claimed in claim 1, wherein the housing is provided with a hollow cavity for mounting the output plug, the cavity is provided with a mounting hole, and a plug strip protruding from an inner side wall of the cavity is arranged in the cavity, the output plug is mounted in the cavity, so that the plug strip contacts with an outer side wall of the output plug, thereby realizing tight fit between the output plug and the cavity; and the conductive column penetrates through the mounting hole and then extends into the shell, and is electrically connected with the second conductive piece.

3. The power adapter as claimed in claim 2, wherein the inner side wall of the cavity is further provided with a protrusion, and the output plug is correspondingly provided with a groove for engaging with the protrusion.

4. The power adapter as claimed in claim 1, wherein the second conductive member comprises a conductive pin and a conductive part integrally formed and linearly distributed; the circuit board is provided with conductive holes corresponding to the conductive pins, and the conductive pins are inserted into the conductive holes, so that the conductive pins are electrically connected with the circuit board; the middle of the conductive part is provided with a clamping opening, and the conductive column is inserted into the clamping opening, so that the conductive part is electrically connected with the conductive column.

5. The power adapter as claimed in claim 1, wherein the power adapter is a vertical structure, and the first conductive member includes a conductive pin and a conductive portion integrally formed and linearly distributed, the circuit board is provided with a conductive hole corresponding to the conductive pin, the conductive pin is inserted into the conductive hole to electrically connect the conductive pin and the circuit board, the conductive portion is provided with a clamping opening in the middle, and the pin is inserted into the clamping opening to electrically connect the conductive portion and the pin;

6. The power adapter according to any one of claims 4-5, wherein the conductive portion comprises a first spring plate and a second spring plate which are connected with the conductive pins, and free ends of the first spring plate and the second spring plate extend outwards, so that the clamping opening is formed between the first spring plate and the second spring plate; the free ends of the first elastic sheet and the second elastic sheet contract inwards and then expand outwards.

7. A power adapter as claimed in any one of claims 4 to 5, wherein the conductive pins are provided with a latch extending outwardly thereof for preventing the conductive pins from falling off the circuit board.

8. A power adapter as claimed in any one of claims 4 to 5, wherein the upper end of the pin is provided with a plurality of ribs horizontally arranged on the outer side surface thereof, and a slot is formed between two adjacent ribs, so that the first spring piece and the second spring piece forming the clamping opening are both clamped in the slot.

9. The power adapter as claimed in claim 1, wherein the two opposite inner side walls of the housing are respectively provided with a first positioning groove and a second positioning groove, and two sides of the circuit board are respectively installed inside the first positioning groove and the second positioning groove; the bottom and the top in the shell are respectively and correspondingly provided with a first fixed block and a second fixed block, and the first fixed block and the second fixed block are respectively contacted with the lower end face and the upper end face of the circuit board.

10. The power adapter as claimed in claim 1, wherein the housing comprises a cover and a hollow housing hermetically connected to the cover, the circuit board being mounted in the housing; the cover body and the shell are welded through ultrasonic waves, the cover body is further provided with an installation block, and the shell is provided with an installation groove connected with the installation block in a clamping mode.