CN217589560U

CN217589560U - Power supply connector

Info

Publication number: CN217589560U
Application number: CN202221521163.0U
Authority: CN
Inventors: 吴祝平; 包金平; 吴永发; 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, include insulator, accept terminal group in insulator and cover the metal casing on insulator, insulator is equipped with a roof and a pair of lateral wall, metal casing be equipped with one cover in top cap on the roof and cover in a pair of side cap on the lateral wall, be equipped with the slot that top-down extended and be located the inclined plane in the slot on the lateral wall, the side cap is equipped with the butt piece that extends and block from bottom to top and hold in the slot. The utility model discloses an improve insulator and metal casing's structure, utilize the butt piece on slot on the lateral wall and the side cap to correspond the cooperation each other for metal casing can top-down smoothly install to insulator on, can effectively prevent to install the dislocation under the guide effect of slot, also can improve metal casing and insulator's connection stability, and the equipment is also very 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 on equipment such as notebook computers, servers and the like, most of the existing electronic products are provided with direct current power connectors which are mainly used for transmitting direct current, for example, a DC Jack type power connector on a notebook computer, because frequent plugging and unplugging are required, the reliability requirement of the power connector is high, if the connection is loose or the plugging is not in place, stable power input can not be easily provided, the existing power connector generally adopts a needle-shaped power terminal and a grounding terminal to realize electrical plugging, the needle-shaped power terminal is used for transmitting current, and the grounding terminal is used for realizing a grounding function, the structure is a structure commonly used by the existing DC Jack type power connector, and in order to provide better protection, a metal shell is assembled on the surface of the DC Jack type power connector, the metal shell is very similar to the conventional USB type power connector, the assembly mode of the conventional USB type power connector is basically the same as that of an insulating body, and in the actual assembly process, the metal shell is easily misplaced when being assembled on the insulating body, the mounting position is difficult to accurately control, so that the smooth connection between the metal shell and the insulating body is not easy to influence the reliability of the mounting.

SUMMERY OF THE UTILITY MODEL

The utility model provides a technical problem provide a power connector to improve among the prior art metal casing and insulator equipment not in the same direction as, the not good problem of connection stability.

In order to solve the technical problem, the utility model adopts the following technical scheme: a power connector comprises an insulating body, a terminal group contained in the insulating body and a metal shell covering the insulating body, wherein the insulating body is provided with a top wall and a pair of side walls, the metal shell is provided with a top cover covering the top wall and a pair of side covers covering the pair of side walls, the side walls are provided with a slot extending from top to bottom and an inclined plane positioned in the slot, and the side covers are provided with butt-joint sheets extending from bottom to top and clamped in the slot.

Further, the inclined plane is located the bottom of slot, the internal surface butt of butt piece is in on the inclined plane, the inclined plane top-down slope extends.

Further, the top of the slot penetrates the top wall upwards, and the length of the slot in the vertical direction does not exceed the height of the side wall.

Furthermore, the bottom edge of the side cover is provided with a welding piece protruding downwards, and the welding piece is positioned below the abutting piece.

Furthermore, a horizontally extending channel is formed on the side wall, the channel extends along the front-back direction and is positioned below the slot, and the extending direction of the channel is perpendicular to the extending direction of the slot.

Furthermore, a jack located below the top wall is arranged in the insulating body, the top cover is provided with a lock catch folding piece formed by folding downwards and an elastic piece extending downwards, the elastic piece extends downwards to extend through the top wall and protrudes into the jack, and at least two folds are arranged on the elastic piece.

Furthermore, the insulation body is provided with a rear end wall, the rear end of the channel penetrates through the rear end wall of the insulation body backwards, a mounting groove for inserting the terminal group is formed in the rear end wall, and the mounting groove comprises an inverted U-shaped slot and a hole groove.

Further, the terminal group includes a needle-like power supply terminal, a ground terminal and flaky detection terminal, the power supply terminal is equipped with a needle-like butt joint arm that is located the jack center, ground terminal is equipped with a left side ground arm, a right side ground arm and a bridging arm, just the front end of left side ground arm is turned back backward and is extended formation a U type and join in the arm from the U type and an elasticity overlap joint arm that the arm is extended to the back an organic whole.

Furthermore, a contact end in lap joint contact with the detection terminal is formed at the tail end of the elastic lap joint arm, an elastic pressing piece is arranged on the left grounding arm and is opposite to the contact end, and the elastic pressing piece protrudes towards the contact end.

Compared with the prior art, the utility model discloses an improve insulator and metal casing's structure, utilize the butt piece on slot on the lateral wall and the side cap to correspond the cooperation each other for metal casing can top-down smoothly install to insulator on, can effectively prevent to install the dislocation under the guide effect of slot, also can improve metal casing and insulator's connection stability, and the equipment is also very 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.

Fig. 8 is a schematic view illustrating an installation manner of a metal shell of the power connector according to the present invention.

Detailed Description

Referring to fig. 1 to 8, the present invention provides a power connector 100 for being soldered to a circuit board (not shown) and plugged 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 power connector 100 of the present invention 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 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 in a front-back manner, one slot 130 is close to the front end wall 14, the other slot 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, the inclined surface 131 is located in the slot 130 and is inclined from top to bottom, as shown in fig. 3, preferably, the length of the slot 130 in the vertical direction does not exceed the height of the side wall 13, a horizontally extending channel 132 is further formed in the side wall 13, the channel 132 extends in the front-back direction and is located below the slot 130, and the extending direction of the channel 132 is perpendicular to the extending direction of the slot 130. The front end wall 14 is integrally connected to 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 centrally located, the insertion hole 140 extends into the insulating body 10 from front to back, the insertion hole 140 is located right below the limiting hole 111, the limiting hole 111 and the insertion hole 140 are arranged in a penetrating manner, in addition, a stopping wall 141 is further arranged in the insertion hole 140, the stopping wall 141 penetrates the rear end wall 15 backwards so that the power terminals 22 can be inserted into the insulating body 10 from back to front, meanwhile, in order to limit the metal shell 30, the front end wall 14 is further provided with a limiting convex edge 142 protruding from the top wall 11 and the side walls 13, the rear end wall 15 is arranged in a parallel with the front end wall 14, a mounting groove 150 for the terminal group 20 to be inserted is formed in the surface of the rear end wall 15, so that the terminal group 20 can be inserted into the insulating body 10 from back to front, the mounting groove 150 includes an inverted U-shaped arm 151 and a hole 152, a hole 153 is located inside the U-shaped insertion hole 151 and a receiving portion 153 located inside the U-shaped connection arm 2105, and a receiving portion 153 located inside the limiting arm 210 is located inside the U-shaped connection portion of the insertion hole 151. 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 resilient tab 2104 located in the through hole 2103, the tab 2104 protrudes toward the protruding tab 22, the connection of the resilient bridging arm 2102 and the sheet main body 2101 is provided with a U-shaped bridging arm 2105, the resilient bridging arm 2105 is connected with the U-shaped bridging arm 2105 and the resilient tab 2106 is located in the contact direction of the socket 2107, and the resilient tab 2106 is provided with a contact stop tab 2106, and the tab 2106 is located in the front and the resilient tab 2107, the resilient tab 2104 is provided with a contact stop tab 2106, and a contact terminal V7 is located in the resilient tab 2104 capable of contacting the contact with a contact pin 2106, and a contact stop tab 2104 located in the resilient tab 2104 capable of contacting the contact with a contact pin 2107, and a contact pin 2106 is provided with a contact pin 2104 capable of contacting the resilient tab 2104 located in the contact pin 2107; the right grounding arm 211 is provided with a V-shaped extension arm 2110, the V-shaped extension arm 2110 extends from back to front 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 downwards and extends 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 closely attached to one side surface of 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 constantly in contact with the contact tail end 2107 of the elastic overlapping arm 2102 under normal conditions, 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 portion 232 which extends downwards from the rear end of the contact piece 231, the contact piece 231 is in overlapping contact with the contact tail end 2107, and the leg portion 232 is used for being soldered to a circuit board.

The metal shell 30 is U-shaped, and is covered on the insulating body 10 from top to bottom 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 folding piece 33 which is folded downwards and an elastic piece 34 which extends downwards, the lock catch folding piece 33 is perpendicular to the top cover 31 and is inserted into the clamping groove 110, protruding thorns 35 are formed on two sides of the lock catch folding piece 33 to strengthen the fixation with the insulating body 10, the number of the lock catch folding pieces 33 is preferably two, the size of the lock catch folding pieces is smaller than that of the limiting holes 111, the lock catch folding pieces 33 are respectively located on the left side and the right side of the elastic piece 34, the elastic piece 34 vertically corresponds to the limiting hole 111 on the insulating body 10, and extends into the insertion hole 140 through the limiting hole 111, and preferably, the elastic piece 34 is provided with at least two folds S, so that the elastic piece 34 has better elasticity and is not easy to be damaged. 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 corresponding to those of the slots 130, the bottom end of the abutting pieces 36 is integrally connected with the side cover 32, the top end of the abutting pieces 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, the assembly is completed, in addition, the bottom edge of the side cover 32 is provided with a welding piece 37 protruding downwards, and the welding piece 37 is positioned below the abutting pieces 36.

In the unplugged state, the detection 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 plug 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 detection terminal 23, thereby triggering the detection signal, thereby indicating that the butt-end connector (not shown) is plugged in place.

The utility model discloses an improve ground terminal 21's structure, set up the U type that the backward inflection formed at its front end and link up arm 2105 and link up the elasticity overlap joint arm 2102 that the arm 2105 extends to a body from U type backward, borrow by the U type and link up the toughness and the resilience performance that arm 2105 can improve elasticity overlap joint arm 2102, thereby make elasticity overlap joint arm 2102 possess more reliable, more stable contact performance, can with listen more stable overlap joint of terminal 23.

Additionally, the utility model discloses still through improving insulator 10 and metal casing 30's structure, utilize the mutual corresponding cooperation of butt piece 36 on slot 130 on the lateral wall 13 and the side cap 32 for metal casing 30 can be installed to insulator 10 on top-down smoothly, can effectively prevent to install the dislocation under the guide effect of slot 130, also can improve metal casing 30 and insulator 10's connection stability, and the equipment is also very 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, a terminal group contained in the insulating body and a metal shell covering the insulating body, wherein the insulating body is provided with a top wall and a pair of side walls, the metal shell is provided with a top cover covering the top wall and a pair of side covers covering the pair of side walls, and the power connector is characterized in that: the side wall is provided with a slot extending from top to bottom and an inclined plane positioned in the slot, and the side cover is provided with a contact piece extending from bottom to top and clamped in the slot.

2. The power connector of claim 1, wherein: the inclined plane is located the bottom of slot, the internal surface butt of butt piece is in on the inclined plane, the inclined plane top-down slope extends.

3. The power connector of claim 2, wherein: the top of the slot penetrates the top wall upwards, and the length of the slot in the vertical direction does not exceed the height of the side wall.

4. A power connector as claimed in claim 3, wherein: and the bottom edge of the side cover is provided with a welding sheet which protrudes downwards, and the welding sheet is positioned below the abutting sheet.

5. The power connector of claim 4, wherein: the side wall is also provided with a horizontally extending channel which extends along the front-back direction and is positioned below the slot, and the extending direction of the channel is vertical to the extending direction of the slot.

6. The electrical power connector as recited in claim 5, wherein: the top cover is provided with a lock catch folding piece formed by folding downwards and an elastic piece extending downwards, the elastic piece extends downwards to penetrate through the top wall and stretches into the jack, and at least two creases are arranged on the elastic piece.

7. The power connector of claim 6, wherein: the insulation body is provided with a rear end wall, the rear end of the channel penetrates through the rear end wall of the insulation body backwards, the rear end wall is provided with a mounting groove for inserting the terminal group, and the mounting groove comprises an inverted U-shaped slot and a hole groove.

8. The power connector of claim 7, wherein: the terminal group includes a needle-like power supply terminal, a ground terminal and flaky detection terminal, the power supply terminal is equipped with a needle-like butt joint arm that is located the jack center, ground terminal is equipped with a left side ground arm, a right side ground arm and a bridging arm, just the front end of left side ground arm is turned back backward and is extended formation U type and join in marriage the arm and join in marriage an elastic bridging arm that the arm is integrative to extend backward from the U type.

9. The power connector of claim 8, wherein: the tail end of the elastic lapping arm is provided with a contact tail end which is lapped and contacted with the detection terminal, the left grounding arm is also provided with an elastic pressing sheet which is arranged opposite to the contact tail end, and the elastic pressing sheet extends towards the contact tail end in a protruding mode.