CN207442022U - a power connector - Google Patents

Abstract

The utility model discloses a power connector, which comprises: an insulating body, wherein the insulating body is provided with an annular slot and a central slot along the front end surface thereof; a central pin terminal, which is inserted into the insulating body along the rear end of the insulating body, and the first and second clamping conductive connection parts of the central pin terminal are exposed in the central slot; a switch terminal group, which comprises a movable terminal and a static terminal which are installed in the insulating body and matched with each other, wherein the elastic contact arm of the movable terminal is exposed in the annular slot, and the end of the elastic contact arm contacts with the static terminal, and the negative contact arm as the negative terminal formed by bending the side of the movable terminal is exposed in the annular slot; when the plug is inserted into the annular slot in the insulating body, it is pressed against the elastic contact arm of the movable terminal, so that the elastic contact arm is separated from the static terminal, and the negative contact arm contacts with the negative pole of the plug; the central pin of the plug is inserted into the central slot to contact with the first and second clamping conductive connection parts in the central pin terminal.

Description

a power connector

Technical field:

The utility model relates to the technical field of connector products, in particular to a power connector.

Background technique:

Electrical connectors are the main adapters for electrical signal transmission in various electronic products. Among them, power connectors specially provided as power output/input are widely used in various electronic products, especially near Over the past few years, with the rapid development of various portable electronic products, such as mobile phones, personal digital assistants (PDAs), MP3 players, voice recorders, notebook computers, Apple iPods, etc., are widely used in power supplies of various sizes Connector.

The terminals in the power connector in the prior art include a center pin terminal, a negative terminal, a moving piece terminal and a static piece terminal. The moving piece terminal and the static piece terminal cooperate to form a switch terminal group, and the negative terminal and the moving piece terminal are separated. Design, but they are all used as the negative pole of the power supply, which leads to an increase in the number of terminals, and it is not convenient to assemble.

In view of this, the inventor proposes the following technical solutions.

Utility model content:

The purpose of the utility model is to overcome the deficiencies of the prior art and provide a power connector.

In order to solve the above technical problems, the utility model adopts the following technical solution: the power connector includes: an insulating body, and the insulating body is provided with an annular slot and a central slot located at the center of the annular slot along its front end; The center pin terminal is inserted into the insulator body along the rear end of the insulator body, and the first and second clamping guide parts in the center pin terminal are exposed in the center slot; the switch terminal group includes The moving piece terminal and the static piece terminal are installed in the body and cooperate with each other. The elastic contact arm in the moving piece terminal is exposed in the annular slot, and the end of the elastic contact arm is in contact with the static piece terminal. The side of the moving piece terminal is bent The negative contact arm formed by folding and serving as the negative terminal is exposed in the annular slot; when the plug is inserted into the annular slot in the insulating body, it presses against the elastic contact arm of the movable piece terminal, so that the elastic contact arm is separated from the static piece terminal, And the negative pole contact arm is in contact with the negative pole of the plug; the central pin of the plug is inserted into the central slot to be in contact with the first and second clamping guides in the central pin terminal.

Furthermore, in the above technical solution, an arc-shaped protrusion is formed at the end of the elastic contact arm, and the arc-shaped protrusion contacts with the stationary blade terminal.

Furthermore, in the above technical solution, the central pin terminal is in the shape of a flat plate, which includes a first main body, first and second clamping guide parts formed on the front end of the first main body, and formed on the first main body. The first pin part at the rear end of the part, the front ends of the first and second clamping guide parts are both formed into arc-shaped guide parts.

Furthermore, in the above technical solution, first barbs for positioning are formed on both sides of the first main body; and first protrusions for positioning are formed on the first main body.

Furthermore, in the above technical solution, the stationary blade terminal includes a gantry-shaped second main body, first and second positioning pins formed on both sides of the second main body, and a pin formed on the rear end of the second main body. For the second pin portion, second barbs for positioning are formed on the outer sides of the first and second positioning pins, and second protrusions for positioning are formed on the end surfaces of the first and second positioning pins.

Furthermore, in the above technical solution, the four corners of the lower end of the insulating body are respectively formed with raised platforms.

Furthermore, in the above technical solution, at least two fixing legs are inserted on the insulating body, and the welding feet of the fixing legs are exposed outside the insulating body.

Furthermore, in the above technical solution, the fixed foot is T-shaped, and a third barb for positioning is formed on the outer side of the fixed foot.

Furthermore, in the above technical solution, the inner wall of the annular slot is formed with a number of fool-proof reinforcing ribs, and the front ends of the fool-proof reinforcing ribs are arranged on an inclined plane.

Furthermore, in the above technical solution, a suction cover is inserted into the annular slot of the insulating body.

After adopting the above technical solution, the utility model has the following beneficial effects compared with the prior art:

1. The utility model integrates the moving plate terminal and the negative electrode contact arm of the pole terminal to form an integrated structure, thereby reducing the number of parts of the utility model and improving assembly efficiency. Because the center pin terminal is flat, the first and second clamping and connecting parts have extremely strong clamping force, which ensures the stability of the connection with the plug.

2. After the four corners of the lower end of the insulating body are respectively formed with the raised platform and the PCB board, a gap is formed between the lower end surface of the insulating body and the PCB board. This gap can make the utility model in the reflow process, Convection of hot air around the center pin terminal and the pin part of the switch terminal group makes the solder easier to melt and the product soldering is stronger.

3. When the utility model is reflow soldering, an automatic mechanical device can be used to absorb the upper surface of the adsorption cover 6, so as to transport the utility model to the reflow soldering equipment, so as to improve work efficiency and quality, and help improve market competitiveness.

Description of drawings:

Fig. 1 is a perspective view of the utility model;

Fig. 2 is a perspective view of another viewing angle of the utility model;

Fig. 3 is an exploded view of the utility model.

Detailed ways:

Below in conjunction with specific embodiment and accompanying drawing, the utility model is further described.

As shown in FIGS. 1-3 , it is a power connector, which includes: an insulating body 1 , a central pin terminal 2 and a switch terminal group inserted in the insulating body 1 .

The insulating body 1 is provided with an annular slot 11 and a central slot 12 at the center of the annular slot 11 along its front end.

The inner wall of the annular slot 11 is formed with several anti-fooling reinforcing ribs 13, so as to have anti-fooling effect, and the front end of the anti-fooling reinforcing ribs 13 is arranged on an inclined plane, so as to have a guiding effect.

The four corners of the lower end of the insulating body 1 are respectively formed with a raised platform 10. After the raised platform 10 is in contact with the PCB board, a gap is formed between the lower end surface of the insulating body 1 and the PCB board. The gap can make the utility model During the reflow soldering process, the hot air around the center pin terminal 2 and the pin part of the switch terminal group is convected, so that the solder is more easily melted, and the product welding is more firm.

The annular slot 11 of the insulating body 1 is inserted with an adsorption cover 6, so that when the utility model is reflow soldering, an automatic mechanical device can be used to absorb the upper end surface of the adsorption cover 6, so that the utility model can be transported to the reflow soldering process. equipment, in order to improve work efficiency and quality, which is conducive to improving market competitiveness.

The central pin terminal 2 is inserted into the insulating body 1 along the rear end of the insulating body 1, and the first and second clamping and connecting parts 21 and 22 of the central pin terminal 2 are exposed in the central slot 12; specifically In other words, the center pin terminal 2 is in the shape of a flat plate, which includes a first main body 23 and first and second clamping and guiding parts 21 and 22 formed on the front end of the first main body 23 and formed on the first main body. The first pin part 24 at the rear end of the part 23, the front ends of the first and second clamping guide parts 21, 22 are both formed into an arc-shaped guide part 20. Since the center pin terminal 2 is flat, the first and second clamping and connecting parts 21 and 22 have extremely strong clamping force, which ensures the stability of the connection with the plug.

Both sides of the first main body 23 are formed with first barbs 231 for positioning; the first main body 23 is formed with a first protrusion 232 for positioning, so as to ensure that the center pin terminal 2 is stably assembled on the Insulation body 1.

The switch terminal group includes a movable piece terminal 3 and a static piece terminal 4 installed in the insulating body 1 and installed in cooperation with each other. The elastic contact arm 31 of the movable piece terminal 3 is exposed in the annular slot 11, and the elastic contact The end of the arm 31 is in contact with the static terminal 4, and the negative contact arm 32 formed by bending the side of the movable terminal 3 as a negative terminal is exposed in the annular slot 11; The contact arm 32 is integrated to form an integrated structure, thereby reducing the number of parts of the utility model and improving assembly efficiency.

The end of the elastic contact arm 31 is formed with an arc-shaped protrusion 311 , and the arc-shaped protrusion 311 is in contact with the stationary blade terminal 4 .

The stationary blade terminal 4 includes a gantry-shaped second main body 41 , first and second positioning pins 42 , 43 formed on both sides of the second main body 41 , and a second positioning pin formed on the rear end of the second main body 41 . Pin portion 44, the first and second positioning pins 42, 43 are formed with second barbs 401 for positioning on the outside, and the first and second positioning pins 42, 43 are formed with second barbs for positioning on the end faces. The protruding shell 402 ensures that the static blade terminal 4 is stably assembled in the insulating body.

When the utility model works, when the plug is inserted into the annular slot 11 in the insulating body 1, it presses against the elastic contact arm 31 of the movable piece terminal 3, so that the elastic contact arm 31 is separated from the static piece terminal 4, and the negative contact arm 32 is in contact with the negative pole of the plug; the center pin of the plug is inserted into the center slot 12 to be in contact with the first and second clamping guides 21 , 22 in the center pin terminal 2 .

At least two fixing legs 5 are inserted on the insulating body 1 , and the welding feet 51 of the fixing legs 5 are exposed outside the insulating body 1 . in. The fixed foot 5 is T-shaped, and the outer side of the fixed foot 5 is formed with a third barb 52 for positioning. The fixed foot 5 is used for welding and fixing with the PCB board, so as to enhance the structural strength of the utility model, and can Guaranteed service life.

In summary, the utility model integrates the movable piece terminal 3 and the negative contact arm 32 of the pole terminal to form an integrated structure, thereby reducing the number of parts of the utility model and improving assembly efficiency. Since the center pin terminal 2 is flat, the first and second clamping and connecting parts 21 and 22 have extremely strong clamping force, which ensures the stability of the connection with the plug.

Of course, the above descriptions are only specific embodiments of the utility model, and are not intended to limit the implementation scope of the utility model. Should be included in the utility model patent scope.

Claims (10)

1. a kind of power connector, it is characterised in that：It includes：

Insulating body (1), the insulating body (1) offer annular slot (11) and positioned at annular slot backward along its front end face (11) the center slot (12) at center；

Center pin terminal (2) is inserted in along insulating body (1) rear end in insulating body (1), and in the center pin terminal (2) First, second clamping junction (21,22) be revealed in center slot (12)；

Switch terminal set, including being installed in insulating body (1) and the movable plate terminal for the installation that cooperates (3) and stationary plate terminal (4), the elastic contact arm (31) in the movable plate terminal (3) is revealed in annular slot (11), and the elastic contact arm (31) end End is contacted with stationary plate terminal (4), and the cathode contact arm (32) which is formed as negative terminal is aobvious It is exposed in annular slot (11)；

When annular slot (11) in plug insertion insulating body (1), supported with the elastic contact arm (31) of movable plate terminal (3) Pressure, makes elastic contact arm (31) be separated with stationary plate terminal (4), and the cathode contact of the cathode contact arm (32) and plug；This is inserted The center pin insertion center slot (12) of head is connect with clamping junction (21,22) with first, second in center pin terminal (2) It touches.

2. a kind of power connector according to claim 1, it is characterised in that：Elastic contact arm (31) the end shaping There is arc convex (311), which contacts with stationary plate terminal (4).

3. a kind of power connector according to claim 1, it is characterised in that：The center pin terminal (2) is in tabular, It includes the first main part (23) and takes shape in the first, second clamping junction of the first main part (23) front end (21,22) and the first lead portion (24) for taking shape in the first main part (23) rear end, this first, second clamping junction (21, 22) front end is molded arc junction (20).

4. a kind of power connector according to claim 3, it is characterised in that：First main part (23) the both sides shaping It is useful for the first hangnail (231) of positioning；The first convex closure (232) used for positioning is formed on first main part (23).

5. a kind of power connector according to claim 4, it is characterised in that：The stationary plate terminal (4) includes in dragon The second main part (41) of gate-shaped and take shape in the second main part (41) both sides first, second location pins (42,43) and The second pin portion (44) of the second main part (41) rear end is taken shape in, is molded on the outside of first, second location pins (42,43) The second hangnail (401) of positioning is useful for, is formed on first, second location pins (the 42,43) end face used for positioning Second convex closure (402).

6. according to a kind of power connector described in claim 1-5 any one, it is characterised in that：The insulating body (1) Four corners of lower end form padded (10) respectively.

7. a kind of power connector according to claim 6, it is characterised in that：Be inserted on the insulating body (1) to Few two fixed feets (5), the leg (51) of the fixed feet (5) are revealed in insulating body (1) outside.

8. a kind of power connector according to claim 7, it is characterised in that：The fixed feet (5) is in T shape, this is solid Determine to form the 3rd hangnail (52) used for positioning on the outside of foot (5).

9. a kind of power connector according to claim 6, it is characterised in that：The annular slot of the insulating body (1) (11) adsorption cover (6) is inserted in.

10. a kind of power connector according to claim 6, it is characterised in that：Annular slot (11) inner wall shaping There are several fool proof reinforcing ribs (13), which is set in inclined-plane.