CN217589646U

CN217589646U - Power supply connector

Info

Publication number: CN217589646U
Application number: CN202221521168.3U
Authority: CN
Inventors: 包金平; 吴永发; 吴祝平; 方志宏
Original assignee: Drapho Electronics Technology Co ltd
Current assignee: Drapho Electronics Technology Co ltd
Priority date: 2022-06-17
Filing date: 2022-06-17
Publication date: 2022-10-14
Anticipated expiration: 2032-06-17

Abstract

The utility model provides a power supply connector, including insulator and terminal group, a jack has been seted up on insulator's the front end wall, terminal group is including the power supply terminal, ground terminal and detection terminal, ground terminal is equipped with a left side ground arm, a right side ground arm reaches the bridging arm that links to each other with left side ground arm and right side ground arm an organic whole, left side ground arm and right side ground arm are located the power supply terminal left and right sides respectively, and left side ground arm is equipped with one from the back forward extension's slice main part and extends the elasticity overlap joint arm that forms from the front end of slice main part backfolding, elasticity overlap joint arm is equipped with a contact end, and this contact end and detection terminal overlap joint contact. The utility model discloses a newly-increased terminal of listening in terminal group makes and realizes the overlap joint cooperation between listening terminal and the ground terminal, and then can effectively listen its grafting state in the insertion process of butt joint connector to judge whether to peg graft according to the detection signal and target in place, and overall structure is simple, the equipment operation is also convenient.

Description

Power supply connector

Technical Field

The utility model relates to an electric connection field especially relates to a power connector.

Background

The power connector is a device commonly used in electronic equipment nowadays, and is often used in equipment such as a notebook computer, a server, and the like, and most of current electronic products are provided with a DC power connector which is mainly used for transmitting DC power, for example, a DC Jack type power connector on a notebook computer, because frequent plugging and unplugging is required, the reliability requirement of the power connector is high, and if the connection is loose or the plugging is not in place, stable power input is easily unable to be provided.

SUMMERY OF THE UTILITY MODEL

The technical problem solved by the present invention is to provide a power connector to improve the problem in the prior art that the plugging can not be detected or determined due to lack of the detecting terminal.

In order to solve the technical problem, the utility model adopts the following technical scheme: a power connector comprises an insulating body and a terminal group contained in the insulating body, wherein the insulating body is provided with a top wall, a bottom wall, a pair of side walls, a front end wall and a rear end wall, a jack is formed in the front end wall and extends backwards into the insulating body, the terminal group comprises a power terminal, a ground terminal and a detection terminal located on one side of the power terminal, the ground terminal is provided with a left side ground arm, a right side ground arm and a bridging arm integrally connected with the left side ground arm and the right side ground arm, the left side ground arm and the right side ground arm are respectively located on the left side and the right side of the power terminal, the left side ground arm is provided with a sheet main body extending forwards from the back and an elastic lapping arm formed by folding back and extending the front end of the sheet main body backwards, the elastic lapping arm is provided with a contact tail end, and the contact tail end is in lapping contact with the detection terminal.

Furthermore, the elastic lapping arm is also provided with a protruding arm, the contact tail end is formed at one end of the protruding arm, and the protruding arm is provided with a left contact convex part protruding into the jack.

Furthermore, the right side grounding arm is provided with an extension arm, the extension arm extends forwards from the back and is provided with a right contact convex part protruding into the jack, and the left contact convex part and the right contact convex part are arranged oppositely and are respectively positioned at the left side and the right side of the power terminal.

Furthermore, the protruding arm that stretches of elasticity overlap joint arm is the V type, the extension arm of right side ground connection arm also is the V type, left side contact convex part and right side contact convex part with the distance of power supply terminal equals.

Furthermore, a U-shaped connecting arm is formed at the joint of the sheet main body and the elastic overlapping arm, and the U-shaped connecting arm is integrally connected with the elastic overlapping arm and the sheet main body.

Furthermore, the bridging arm is arranged horizontally, the left end and the right end of the bridging arm are connected with the left grounding arm and the right grounding arm integrally respectively, and the detection terminal and the power supply terminal are located below the bridging arm.

Furthermore, the power supply terminal is needle-shaped and is provided with a horizontally arranged butt joint arm and a mounting foot extending downwards from the rear end of the butt joint arm, and the front end of the butt joint arm is provided with a circular arc-shaped head.

Furthermore, the detection terminal is located between the power terminal and the elastic overlapping arm, and the detection terminal is of a sheet structure.

Further, the front end of the left ground arm is closer to the front end wall than the front end of the power supply terminal, and the front end of the power supply terminal is closer to the front end wall than the front end of the right ground arm.

Compared with the prior art, the utility model discloses a newly-increased terminal of listening in terminal group makes and realizes the overlap joint cooperation between listening terminal and the ground terminal, and then can effectively listen its grafting state in the insertion process of butt joint connector to judge whether to peg graft according to the detection signal and target in place, and overall structure is simple, the equipment operation is also convenient.

Drawings

Fig. 1 is a front perspective view of the power connector of the present invention.

Fig. 2 is a perspective view of the back side of the power connector of the present invention.

Fig. 3 is a partially exploded view of the power connector of the present invention.

Fig. 4 is a schematic diagram of a terminal position of the power connector of the present invention.

Fig. 5 is a top view of the terminal position relationship of the power connector of the present invention.

Fig. 6 is a cross-sectional view of the power connector of the present invention.

Fig. 7 is a perspective view of the power connector of the present invention with the bottom surface of the metal shell facing upward.

Detailed Description

Referring to fig. 1-7, the present invention provides a power connector 100 for soldering to a circuit board (not shown) and plugging with a pair of connectors (not shown), preferably, the power connector 100 can be a DC power connector 100, such as a DC Jack. The utility model discloses a power connector 100 includes: the structure of the present invention includes an insulative housing 10, a terminal set 20 housed in the insulative housing 10, and a metal shell 30 covering a surface of the insulative housing 10, wherein the specific structure of each component is described in detail below.

The insulating body 10 is rectangular and is provided with a top wall 11, a bottom wall 12, a pair of side walls 13, a front end wall 14 and a rear end wall 15, wherein the surface of the top wall 11 is provided with a plurality of clamping grooves 110 and limiting holes 111, the clamping grooves 110 are located on two sides of the limiting holes 111, and both the clamping grooves 110 and the limiting holes are used for being in snap fit with the metal shell 30, so that the metal shell 30 and the top wall 11 are reliably combined and fixed. A pair of slots 130 extending from top to bottom are formed in the surface of the side wall 13 for limiting and matching with the metal shell 30, the pair of slots 130 are distributed front and back, one of the slots 130 is close to the front end wall 14, the other one of the slots 130 is close to the rear end wall 15, and the pair of slots 130 are arranged in parallel, it should be noted that the top of the slot 130 penetrates through the surface of the top wall 11 upward, the bottom of the slot 130 is provided with an inclined surface 131, and the inclined surface 131 is located in the slot 130 and is inclined from top to bottom, as shown in fig. 3. The front end wall 14 is integrally connected with the top wall 11, the pair of side walls 13 and the bottom wall 12, a circular insertion hole 140 is formed in the surface of the front end wall 14, the insertion hole 140 is located between the pair of side walls 13 and is arranged in the middle, the insertion hole 140 extends into the insulating body 10 from front to back, the insertion hole 140 is located under the limiting hole 111, the limiting hole 111 and the insertion hole 140 are communicated with each other, in addition, a stop wall 141 is further arranged in the insertion hole 140, and the stop wall 141 is communicated with the rear end wall 15 from back to back so that the power terminal 22 can be inserted into the insulating body 10 from back to front. The rear end wall 15 is parallel to the front end wall 14, and a mounting groove 150 for inserting the terminal set 20 is formed on the surface of the rear end wall 15, so that the terminal set 20 can be inserted into the insulating body 10 from the rear to the front, the mounting groove 150 includes an inverted U-shaped slot 151 and a hole slot 152, as shown in fig. 3 and 6, the hole slot 152 is located inside the inverted U-shaped slot 151 and is used for accommodating the power terminal 22, a portion of the slot 151 accommodates the left grounding arm 210 and is provided with a limiting wall 153 located inside the U-shaped engaging arm 2105, and the limiting wall 153 is located between the U-shaped engaging arm 2105 and the insertion hole 140. The bottom wall 12 of the insulating body 10 is provided with a flange portion 121 protruding rearward, the flange portion 121 protrudes rearward from the rear end wall 15, and the flange portion 121 is provided with a plurality of positioning slots 122 for clamping and positioning the welding arm 2112 of the ground terminal 21, the leg portion 232 of the detection terminal 23 and the mounting leg 221 of the power terminal 22.

As shown in fig. 4, the terminal set 20 includes a ground terminal 21, a needle-shaped power terminal 22, and a detection terminal 23 located at one side of the power terminal 22.

The ground terminal 21 has a left ground arm 210, a right ground arm 211 and a bridging arm 212, the left ground arm 210 and the right ground arm 211 are respectively located at the left and right sides of the power terminal 22, and the bridging arm 212 is located above the power terminal 22 and the detection terminal 23, and the bridging arm 212 is horizontally disposed, and the left and right ends thereof are respectively connected with the left ground arm 210 and the right ground arm 211 integrally, thereby forming an inverted U-shaped structure for matching with the inverted U-shaped slot 151, wherein the left ground arm 210 has a sheet main body 2101 extending forward from the rear and a resilient bridging arm 2102 folded back and extending from the front end of the sheet main body 2101, the sheet main body 2101 is provided with a through hole 2103 and a pressing sheet 2104 located in the through hole 2103, the pressing sheet 2104 protrudes toward the protruding tab 22, the connection of the resilient bridging arm 2101 is formed with a U-shaped bridging arm 2105, the resilient bridging arm 2105 is connected with the U-shaped bridging arm 2105, the pressing sheet 2106 is provided with a contact arm 2106 extending from the rear end of the resilient bridging arm 2106, and the pressing sheet main body 2106 is provided with a contact terminal V2, and the resilient bridging arm 2106 is provided with a contact terminal V2 located in the front end of the resilient bridging arm 2106 and the detection terminal 2106; the right grounding arm 211 is provided with a V-shaped extension arm 2110, the V-shaped extension arm 2110 extends forwards from the back and is provided with a right contact protrusion 2111 protruding into the insertion hole 140, the right contact protrusion 2111 and the left contact protrusion 2108 are arranged opposite to each other and are respectively located at the left side and the right side of the power terminal 22, and the rear ends of the left grounding arm 210 and the right grounding arm 211 are provided with welding arms 2112 extending downwards.

The power terminal 22 is located between the left grounding arm 210 and the right grounding arm 211, and is provided with a horizontally arranged needle-shaped docking arm 220 and a mounting pin 221 which is bent and extended downwards from the rear end of the docking arm 220, the front end of the docking arm 220 is provided with a circular arc-shaped head 222, so that the docking process is better and smooth, and the mounting pin 221 is used for being welded and mounted on a circuit board. In addition, the docking arm 220 is located between the left contact protrusion 2108 and the right contact protrusion 2111, and is equidistant from the left contact protrusion 2108 and the right contact protrusion 2111.

The detection terminal 23 is located at one side of the power terminal 22 and is tightly attached to the stop wall 141 (see fig. 6), specifically, the detection terminal 23 is located between the power terminal 22 and the elastic overlapping arm 2102 and is normally kept in contact with the contact end 2107 of the elastic overlapping arm 2102, the detection terminal 23 is also in a sheet structure and is provided with a contact piece 231 which is vertically arranged and a leg 232 which extends downwards from the rear end of the contact piece 231, the contact piece 231 is in overlapping contact with the contact end 2107, and the leg 232 is used for being soldered to a circuit board.

The metal shell 30 is U-shaped, and covers the insulating body 10 and covers the surfaces of the top wall 11 and the pair of side walls 13, the metal shell 30 is provided with a top cover 31 and a pair of side covers 32, the top cover 31 covers the top wall 11, the side covers 32 cover the side walls 13, the top cover 31 is provided with a lock catch folded piece 33 which is folded downwards and an elastic piece 34 which extends downwards, the lock catch folded piece 33 is inserted into the clamping groove 110, protruding thorns 35 are formed on two sides of the lock catch folded piece 33 to strengthen the fixation with the insulating body 10, the number of the lock catch folded pieces 33 is preferably two, the two lock catch folded pieces are respectively positioned on the left side and the right side of the elastic piece 34, and the elastic pieces 34 vertically correspond to the limiting holes 111 on the insulating body 10 and extend into the insertion holes 140 through the limiting holes 111. The side cover 32 is provided with abutting pieces 36 correspondingly matched with the slots 130, the number of the abutting pieces 36 is the same as that of the slots 130, the positions of the abutting pieces 36 are mutually corresponding, the bottom end of each abutting piece 36 is integrally connected with the side cover 32, the top end of each abutting piece is a free tail end, when the metal shell 30 is installed on the insulating body 10 from top to bottom, the abutting pieces 36 are clamped in the slots 130 and slide along the slots 130 from top to bottom until the abutting pieces abut against the inclined surfaces 131, and then the assembly is completed.

In the non-plugging state, the detecting terminal 23 of the power connector 100 of the present invention always maintains the lap joint connection with the left grounding arm 210, and after the butt-end connector (not shown) is plugged into the insertion hole 140, the butt-end connector (not shown) forces the elastic lap-joint arm 2102 of the left grounding arm 210 to deform and displace outward in the plugging process, so that the contact end 2107 of the elastic lap-joint arm 2102 is separated from the lap joint with the detecting terminal 23, thereby triggering the detecting signal, thereby indicating that the butt-end connector (not shown) is plugged in place.

To sum up, the utility model discloses a newly-increased terminal 23 of listening in terminal group 20 makes and realizes the overlap joint cooperation between terminal 23 and the ground terminal 21, and then can effectively listen its grafting state in the plug-in process of butt joint connector (not shown) to judge whether to peg graft in place according to detecting the signal, and overall structure is simple, the equipment operation is also convenient.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and those skilled in the art can make many variations and modifications of the technical solution of the present invention without departing from the scope of the technical solution of the present invention.

Claims

1. A power connector comprises an insulating body and a terminal group contained in the insulating body, wherein the insulating body is provided with a top wall, a bottom wall, a pair of side walls, a front end wall and a rear end wall, a jack is formed in the front end wall, and the jack extends backwards into the insulating body, and the power connector is characterized in that: the terminal group includes a power supply terminal, a ground terminal and is located the detection terminal of power supply terminal one side, ground terminal is equipped with a left side ground arm, a right side ground arm and the bridging arm that links to each other with left side ground arm and right side ground arm an organic whole, left side ground arm and right side ground arm are located the power supply terminal left and right sides respectively, just left side ground arm is equipped with one from the back forward extension slice main part and the elastic lapping arm that forms of extending backward from the front end of slice main part, elastic lapping arm is equipped with a contact end, and this contact end with detect terminal lapping contact.

2. A power connector as claimed in claim 1, wherein: the elastic lapping arm is also provided with a protruding arm, the contact tail end is formed at one end of the protruding arm, and the protruding arm is provided with a left contact convex part protruding into the jack.

3. A power connector as claimed in claim 2, wherein: the right side ground arm is equipped with an extension arm, the extension arm extends forward from the back and is equipped with a protruding right side contact convex part of going into in the jack, left side contact convex part and right side contact convex part set up and are located respectively the left and right sides of power supply terminal each other.

4. A power connector as claimed in claim 3, wherein: the protruding arm of stretching of elasticity overlap joint arm is the V type, the extension arm of right side ground connection arm also is the V type, left side contact convex part and right side contact convex part with the distance of power supply terminal equals.

5. The electrical power connector as recited in claim 4, wherein: the U-shaped joining arm is formed at the joint of the sheet main body and the elastic joining arm, and the U-shaped joining arm is integrally connected with the elastic joining arm and the sheet main body.

6. The power connector of claim 1, wherein: bridging arm is the level setting, about it both ends respectively with left side ground connection arm and right side ground connection arm are integrative links to each other, just it all is located to listen terminal, power supply terminal bridging arm's below.

7. The power connector of claim 1, wherein: the power supply terminal is needle-shaped and is provided with a horizontally arranged butt joint arm and a mounting foot extending downwards from the rear end of the butt joint arm, and the front end of the butt joint arm is provided with a circular arc-shaped head.

8. A power connector as claimed in claim 1, wherein: the detection terminal is located between the power supply terminal and the elastic lapping arm and is of a sheet structure.

9. A power connector as claimed in any one of claims 1 to 8, wherein: the front end of the left ground arm is closer to the front end wall than the front end of the power supply terminal, and the front end of the power supply terminal is closer to the front end wall than the front end of the right ground arm.