CN221102541U

CN221102541U - Power connector

Info

Publication number: CN221102541U
Application number: CN202322658531.7U
Authority: CN
Inventors: 吴永发; 吴祝平; 杨金平; 方志宏
Original assignee: Drapho Electronics Technology Co ltd
Current assignee: Drapho Electronics Technology Co ltd
Priority date: 2023-09-28
Filing date: 2023-09-28
Publication date: 2024-06-07
Anticipated expiration: 2033-09-28

Abstract

The utility model provides a power connector, which comprises an insulating body, a terminal group and a metal shell, wherein the insulating body is provided with a rear end wall, a pair of side walls and a butt joint part positioned between the pair of side walls; the metal shell is provided with a pair of side covers which cover the side wall surfaces, the front side edge of the side covers is provided with a notch which is clamped in the clamping groove, and the notch is concavely formed from the front side edge to the rear side. According to the utility model, through optimizing the matching structure between the insulating body and the metal shell, the limit fixing of the insulating body and the metal shell is realized by matching the notch on the side cover of the metal shell with the buckling convex part on the insulating body, so that the metal shell can be assembled on the insulating body smoothly from back to front, and the reliable and stable combination relationship between the metal shell and the insulating body is realized.

Description

Power connector

Technical Field

The present disclosure relates to electrical connectors, and particularly to a power connector.

Background

The power connector is a device commonly adopted in electronic equipment at present, and is especially commonly used in notebook computers, servers and other equipment, and most of electronic products are currently provided with direct-current power connectors which are mainly used for conveying direct current, such as DC Jack type power connectors on notebook computers. The conventional power connector generally includes a metal housing, an insulating body wrapped in the metal housing, a power terminal, a ground terminal and a signal terminal, wherein the power terminal is used for transmitting current, the ground terminal is used for realizing a grounding function, and tail portions of the power terminal, the ground terminal and the signal terminal protrude backwards and are exposed out of the insulating body. For some light and thin digital products, the internal space of the digital product is very compact, the volume of the power connector must be designed to be very small and light, and how to ensure the connection reliability and stability of each component while being light and thin is a problem to be considered when designing, especially, the binding force between the metal shell and the insulating body is easily affected by the light and thin design of the metal shell and the insulating body, or the assembly and the combination of the metal shell and the insulating body are adversely affected, the stability of the combination of the metal shell and the insulating body is affected, and finally the contact stability of the power connector is affected.

Disclosure of utility model

The utility model provides a power connector for improving the connection stability and reliability between a metal shell and an insulating body in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme: the power connector comprises an insulating body, a terminal group accommodated in the insulating body and a metal shell assembled on the insulating body, wherein the insulating body is provided with a rear end wall, a pair of side walls extending forwards from two ends of the rear end wall integrally, and a butt joint part positioned between the pair of side walls; the metal shell is provided with a pair of side covers which cover the side wall surfaces, the front side edge of the side covers is provided with a notch which is clamped in the clamping groove, and the notch is concavely formed from the front side edge to the rear side.

Further, the fastening convex part is provided with a connecting arm and an extension arm extending backwards from one end of the connecting arm, and the clamping groove is formed between the extension arm and the side wall.

Further, the connecting arm with the extending direction mutually perpendicular of extension arm, the connecting arm with the front end of lateral wall is integrative link to each other and backstop in the front end of pressing from both sides the groove, the front end face of connecting arm with the front end face of lateral wall flushes the setting.

Further, the extending direction of the extending arm is parallel to the extending direction of the side wall, and the thickness of the buckling convex part in the vertical direction is smaller than that of the side wall in the vertical direction.

Further, the insulating body is further provided with a pair of clamping grooves extending vertically, and the clamping grooves are formed on the outer surfaces of the rear end wall or the outer surfaces of the pair of side walls; the side cover is also provided with a clamping piece protruding inwards, and the clamping piece extends from front to back and protrudes into the clamping groove.

Further, the connecting arm of the buckle convex part is clamped in the notch.

Further, the terminal group comprises a signal terminal, a pair of power terminals positioned at two sides of the signal terminal and a pair of grounding terminals positioned at the outer side of the power terminals, wherein the signal terminal is in a sheet shape and vertically arranged in the thickness direction, and the power terminals and the grounding terminals are also in a sheet shape and horizontally arranged in the thickness direction.

Further, the metal shell is further provided with a top cover and a bottom cover, the top cover and the bottom cover are parallel to each other and are respectively located at the upper side and the lower side of the butt joint part, the top cover, the bottom cover and a pair of side walls of the insulating body of the metal shell jointly enclose an inserting cavity, and the butt joint part is located at the central position of the inserting cavity.

According to the power connector, through optimizing the matching structure between the insulating body and the metal shell, the notch on the side cover of the metal shell is matched with the buckling convex part on the insulating body, so that the limiting and fixing of the insulating body and the metal shell are realized, the metal shell can be assembled on the insulating body smoothly from back to front, and the reliable and stable combination relationship between the metal shell and the insulating body is realized.

Drawings

Fig. 1 is a perspective view of a power connector according to the present utility model.

Fig. 2 is an exploded view of the power connector of the present utility model.

Fig. 3 is a perspective view of an insulation body of the power connector according to the present utility model.

Fig. 4 is a perspective view of a metal housing of the power connector according to the present utility model.

Fig. 5 is a cross-sectional view of a power connector according to the present utility model.

Detailed Description

Referring to fig. 1 to 5, the present utility model provides a power connector for soldering to a circuit board (not shown) and plugging with a mating connector (not shown), preferably, the power connector 100 may be a DC power connector 100, such as a DC Jack. The power connector 100 of the present utility model includes: an insulating body 10, a terminal group 20 accommodated in the insulating body 10, and a metal housing 30 covering the surface of the insulating body 10. The specific structure of the foregoing components is described in detail below.

As shown in fig. 2 and 3, the insulating body 10 is in a "mountain" shape, and is provided with a rear end wall 11, a pair of side walls 12 integrally extending forward from two ends of the rear end wall 11, and a butt joint portion 13 integrally extending forward from the rear end wall 11 and interposed between the pair of side walls 12, wherein the side walls 12 and the butt joint portion 13 are integrally connected with the rear end wall 11 and are all formed by extending forward from the rear end wall 11, and the extending directions of the side walls 12 and the butt joint portion 13 are parallel to each other, but the extending length of the butt joint portion 13 is smaller than that of the side walls 12, and the rear end wall 11, the pair of side walls 12 and the butt joint portion 13 jointly form the "mountain" structure. Preferably, the top surface of the rear end wall 11 is provided with a pair of grooves 14, the grooves 14 extend in the front-rear direction and penetrate the front-rear surface of the rear end wall 11, and the pair of grooves 14 are located inside the pair of side walls 12 and correspond to a pair of elastic pieces 34 (described below) of the metal housing 30 in position in the front-rear direction, so that the elastic pieces 34 can pass through during the assembly of the metal housing 30. The pair of side walls 12 are arranged in parallel with each other, the rear ends thereof are integrally connected with the rear end wall 11, and the outer surface of the side wall 12 is formed with a snap protrusion 15 protruding outwards, the snap protrusion 15 is integrally formed on the outer surface of the side wall 12 and extends backwards, so that a clamping groove 16 is formed between the snap protrusion 15 and the side wall 12 for clamping the metal housing 30, preferably, the snap protrusion 15 is L-shaped, which comprises a connecting arm 151 and an extension arm 152 extending backwards from one end of the connecting arm 151, the extending directions of the connecting arm 151 and the extension arm 152 are mutually perpendicular, the clamping groove 16 is formed between the extension arm 152 and the side wall 12, the connection arm 151 is integrally connected with the front end of the side wall 12 and is stopped at the front end of the clamping groove 16 to stop the excessive insertion of the metal housing 30, the front end face 153 of the connection arm 151 is flush with the front end face of the side wall 12 (see fig. 3 and 5), the outer surface of the extension arm 152 is parallel to the outer surface of the side wall 12, the extension direction of the extension arm 152 is parallel to the extension direction of the side wall 12, the clamping groove 16 is vertically penetrated and is opened backwards, so that the metal housing 30 is inserted into the clamping groove 16 from back to front, preferably, the thickness of the snap protrusion 15 in the vertical direction is smaller than the thickness of the side wall 12 in the vertical direction; an accommodation groove 17 extending in the front-rear direction is formed on the inner surface of the side wall 12 for accommodating the ground terminal 22 of the terminal group 20, and the accommodation groove 17 penetrates the rear surface of the rear end wall 11 rearward so that the ground terminal 22 can be inserted into the accommodation groove 17 from the rear forward. The extension length of the abutting portion 13 in the front-rear direction is smaller than that of the side wall 12, and the thickness of the abutting portion 13 in the vertical direction is also smaller than that of the side wall 12, preferably, a rectangular slot 18 is formed in the front end surface of the abutting portion 13 for accommodating the signal terminals 23 of the terminal group 20, protruding stoppers 19 are formed on two side surfaces of the abutting portion 13, and a space for accommodating the power terminals 21 of the terminal group 20 is formed on the rear side of the stoppers 19, so that the power terminals 21 can be protected to a certain extent.

As can be seen from the above, compared with the existing insulating body, the insulating body 10 of the present utility model eliminates the top wall and the bottom wall, so that the insulating body 10 is hollowed out or non-shielded at the upper and lower sides of the abutting portion 13, and the abutting portion 13 is exposed outwards in the vertical direction, until the metal housing 30 is assembled, a closed plugging cavity 110 is formed by shielding, the plugging cavity 110 is surrounded by the top cover 31, the bottom cover 33 and the pair of side walls 12 of the metal housing 30, and the abutting portion 13 is located at the central position of the plugging cavity 110, at this time, the upper and lower surfaces of the abutting portion 13 directly face the metal housing 30, and no space is provided between the two surfaces, so that the height of the insulating body 10 is reduced, and the overall height of the power connector is further reduced.

It should be noted that, the insulating body 10 is further provided with a pair of vertically extending clamping grooves 110, and the clamping grooves 110 are formed on the outer surfaces of the rear end walls 11 and are used for being fastened and fixed with the metal shell 30, and of course, the clamping grooves 110 may also be formed on the outer surfaces of the pair of side walls 12, and fastening and fixing with the metal shell 30 can also be achieved.

As shown in fig. 2, the terminal set 20 includes a pair of power terminals 21, a pair of ground terminals 22, and a signal terminal 23, which are fixed in the insulating body 10 and are used for electrically connecting with an electrical connector (not shown) of the mating end. The signal terminals 23 are located between the pair of power terminals 21 and inserted into the rectangular grooves 18 of the abutting portion 13, the pair of ground terminals 22 are mounted in the accommodating grooves 17 of the pair of side walls 1213, and the pair of power terminals 21 are attached to both sides of the abutting portion 13 and located at the rear side of the stopper 19. Preferably, the signal terminal 23 is in a sheet shape and has a vertical thickness direction, and the power terminal 21 and the ground terminal 22 are also in a sheet shape and have a horizontal thickness direction.

As shown in fig. 4, the metal housing 30 is coated on the insulating body 10 and covers the surfaces of the rear end wall 11 and the side walls 12, the metal housing 30 is provided with a top cover 31, a pair of side covers 32 and a bottom cover 33, the top cover 31 and the bottom cover 33 are respectively located at the upper and lower sides of the abutting portion 13 and are opposite to the straight surface of the abutting portion 13, the top cover 31 is provided with a pair of spring plates 34 protruding downward, the side covers 32 are provided with retaining pieces 35 protruding inward, and the retaining pieces 35 extend from front to back and are retained in the retaining grooves 110, so as to prevent the metal housing 30 from being separated from the insulating body 10 backward. Preferably, the front side edge of the side cover 32 is provided with a notch 36, and the notch 36 is concavely formed from the front side edge to catch the latch protrusion 15 from the rear to the front, preferably, the connecting arm 151 of the latch protrusion 15 is caught in the notch 36. After assembly, the metal housing 30 can be prevented from being excessively assembled and inserted onto the insulating body 10 by the cooperation of the notch 36 and the fastening protrusion 15, and can be prevented from being released and separated from the insulating body 10 by the cooperation of the fastening piece 35 and the fastening groove 110, so that the limit in the front-rear direction is well realized with the insulating body 10.

In summary, in the power connector of the present utility model, by optimizing the matching structure between the insulating body 10 and the metal housing 30, the recess 36 on the side cover 32 is matched with the fastening protrusion 15 to achieve the limit fixation of the insulating body 10 and the metal housing 30, so that the metal housing 30 can be assembled onto the insulating body 10 smoothly from back to front, and a reliable and stable combination relationship between the two is achieved.

The above description is only of the preferred embodiments of the present utility model, and is not intended to limit the utility model in any way, and any person skilled in the art may make many possible variations and modifications to the technical solution of the present utility model using the above disclosed method without departing from the scope of the technical solution of the present utility model, which is defined in the claims.

Claims

1. The utility model provides a power connector, includes insulator, accommodates terminal group in insulator, assembles the metal casing on to insulator, insulator is equipped with a back end wall, a pair of lateral wall that extends from the both ends of back end wall forward an organic whole, a pair of butt joint portion that is located between a pair of lateral wall, its characterized in that: the outer surface of the side wall is provided with a convex buckling convex part which is L-shaped and forms a clamping groove with the side wall; the metal shell is provided with a pair of side covers which cover the side wall surfaces, the front side edge of the side covers is provided with a notch which is clamped in the clamping groove, and the notch is concavely formed from the front side edge to the rear side.

2. The power connector of claim 1, wherein: the clamping convex part is provided with a connecting arm and an extension arm which extends backwards from one end of the connecting arm, and the clamping groove is formed between the extension arm and the side wall.

3. The power connector of claim 2, wherein: the connecting arm with the extending direction mutually perpendicular of extension arm, the connecting arm with the front end of lateral wall is integrative link to each other and backstop in the front end of pressing from both sides the groove, the preceding terminal surface of connecting arm with the preceding terminal surface of lateral wall flushes the setting.

4. A power connector as claimed in claim 3, wherein: the extending direction of the extending arm is parallel to the extending direction of the side wall, and the thickness of the buckling convex part in the vertical direction is smaller than that of the side wall in the vertical direction.

5. The power connector of claim 4, wherein: the insulating body is also provided with a pair of clamping grooves which extend vertically, and the clamping grooves are formed on the outer surface of the rear end wall or the outer surfaces of the pair of side walls; the side cover is also provided with a clamping piece protruding inwards, and the clamping piece extends from front to back and protrudes into the clamping groove.

6. The power connector of claim 5, wherein: the connecting arm of the buckle convex part is clamped in the notch.

7. The power connector of any one of claims 1 to 6, wherein: the terminal group comprises a signal terminal, a pair of power terminals positioned at two sides of the signal terminal and a pair of grounding terminals positioned at the outer side of the power terminals, wherein the signal terminal is sheet-shaped and vertically arranged in the thickness direction, and the power terminals and the grounding terminals are also sheet-shaped and horizontally arranged in the thickness direction.

8. The power connector of claim 7, wherein: the metal shell is also provided with a top cover and a bottom cover, the top cover and the bottom cover are mutually parallel and are respectively positioned at the upper side and the lower side of the butt joint part, the top cover, the bottom cover and a pair of side walls of the insulating body of the metal shell jointly enclose an inserting cavity, and the butt joint part is positioned at the central position of the inserting cavity.