CN215989346U

CN215989346U - Electrical connection device

Info

Publication number: CN215989346U
Application number: CN202122292136.2U
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: 2021-09-23
Filing date: 2021-09-23
Publication date: 2022-03-08
Anticipated expiration: 2031-09-23

Abstract

The utility model provides an electric connecting device, which comprises an insulating body, a terminal module contained in the insulating body, a USB plug-in module arranged in the insulating body and a metal shell covering the insulating body, wherein the insulating body is provided with a front end butting surface and a rear end mounting surface, the metal shell is provided with a rear cover covering the rear end mounting surface, a circular plug-in port and a USB plug-in port are distributed on the front end butting surface, the rear side of the insulating body is provided with a clamping part protruding from the rear end mounting surface, and a clamping groove for clamping the rear cover is formed between the clamping part and the rear end mounting surface. Compared with the prior art, the clamping part protruding from the rear end mounting surface is arranged on the rear side of the insulating body, and the edge of the rear cover of the metal shell is clamped and limited by the clamping groove between the clamping part and the rear end mounting surface, so that the warping of the rear cover is effectively avoided, and the rear cover can be reliably and stably fixed with the insulating body.

Description

Electrical connection device

Technical Field

The utility model relates to the field of electrical connection, in particular to an electrical connection device.

Background

With the development trend of miniaturization and lightness of consumer electronic products such as notebook computers, tablet computers, mobile phones and the like, the requirements on the design and manufacturing process of parts of the consumer electronic products are higher and higher, and as the products are lighter and thinner day by day, the internal space of the consumer electronic products is very narrow, so that the requirement that the internal parts of the consumer electronic products are required to adopt a dense layout is met, the volume of each electronic part is smaller and thinner, and the requirements on the reliability of the manufacturing process and the connection of the consumer electronic products are higher and higher. The existing electric connector generally comprises an insulating body, conductive terminals and a metal shell covering the insulating body, wherein the metal shell is used for protecting the insulating body and plays a certain signal shielding role, for some electric connectors with special sizes, in order to realize comprehensive coverage, the size or the structure of the metal shell is often special, especially for some long-strip-shaped metal shells, when the metal shell is combined with the insulating body, the shell is easy to warp at some local positions, so that tight combination and fixation with the insulating body cannot be realized, and the metal shell cannot provide a reliable and stable protection effect for the insulating body.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electrical connection device to solve the technical problem that a metal shell is easy to warp and separate from an insulating body in the prior art.

In order to solve the technical problems, the utility model adopts the following technical scheme: an electric connecting device comprises an insulating body, a terminal module contained in the insulating body, a USB plug-in module arranged in the insulating body and a metal shell covering the insulating body, wherein the insulating body is provided with a front end butting surface and a rear end mounting surface, the metal shell is provided with a rear cover covering the rear end mounting surface, a circular plug-in port and a USB plug-in port are distributed on the front end butting surface, the rear side of the insulating body is provided with a clamping part protruding from the rear end mounting surface, and a clamping groove for clamping the rear cover is formed between the clamping part and the rear end mounting surface.

Furthermore, an inward-concave mounting opening is formed in the rear end mounting surface of the insulating body, a stopping portion is arranged in the mounting opening, the rear cover shields the mounting opening, and the clamping groove is located on one side of the mounting opening.

Furthermore, the USB plug-in module is accommodated in the mounting port, and the USB plug-in module is further provided with a butt joint part and a limiting part abutted against the stopping part, the butt joint part is arranged corresponding to the USB plug-in port, and the butt joint part and the limiting part are both positioned on the inner side of the rear cover.

Furthermore, the insulation body is also provided with a protruding part which protrudes backwards and exceeds the rear end installation surface, and the protruding part is provided with an inverted U-shaped slot, an inner slot and a central slot which are positioned at the inner side of the inverted U-shaped slot and used for accommodating the terminal module.

Furthermore, the inverted U-shaped slot comprises a pair of side slots and a top slot, the pair of side slots are distributed on the left side and the right side of the central slot, and the inner slot is positioned between the central slot and one side slot; the central groove is concave.

Furthermore, the terminal module comprises a grounding terminal, a power terminal and a detection terminal, the power terminal is inserted into the central groove and is provided with a cylindrical butt joint arm, the cylindrical butt joint arm is positioned at the central position of the circular socket, and the detection terminal is in lap joint with the grounding terminal.

Furthermore, the grounding terminal is provided with a pair of contact arms arranged oppositely and a top arm for connecting the two contact arms, the two contact arms are sheet-shaped and are respectively inserted into the pair of side grooves, and the top arm is inserted into the top groove.

Furthermore, the circular interface is a direct current power supply interface, and the USB interface is a Type-C USB interface.

Furthermore, the metal shell is further provided with a top cover and a pair of side covers, and the top cover is provided with an elastic sheet which extends downwards into the circular insertion port.

Compared with the prior art, the clamping part protruding from the rear end mounting surface is arranged on the rear side of the insulating body, and the edge of the rear cover of the metal shell is clamped and limited by the clamping groove between the clamping part and the rear end mounting surface, so that the warping of the rear cover is effectively avoided, and the rear cover can be reliably and stably fixed with the insulating body.

Drawings

Fig. 1 is an exploded view of the electrical connection device of the present invention.

Fig. 2 is a top view of the insulating body of the electrical connection device of the present invention.

Fig. 3 is a rear side view of the insulating body of the electrical connection device of the present invention.

Fig. 4 is a rear side view of the electrical connection device of the present invention.

Fig. 5 is a schematic view of a ground terminal of the electrical connection device of the present invention.

Fig. 6 is a schematic diagram illustrating a positional relationship between a ground terminal and a detection terminal of the electrical connection device according to the present invention.

Fig. 7 is a top view of the grounding terminal and the detecting terminal of the electrical connection device of the present invention.

Fig. 8 is a partial view of the rear position of the insulating body of the electrical connection device according to the utility model.

Fig. 9 is an assembled view of the electrical connection device of the present invention.

Detailed Description

Referring to fig. 1 to 9, the present invention provides an electrical connection device, which includes an insulating body 10, a terminal module 20 housed in the insulating body 10, a USB plug-in module 30 installed in the insulating body 10, and a metal housing 40 covering the insulating body 10, wherein the terminal module 20 is used for implementing dc power transmission, and the USB plug-in module 30 is used for implementing transmission of high-speed signals and data.

The insulating body 10 is provided with a top surface 11, a pair of side surfaces 12, a front end abutting surface 13, a first inserting cavity 14 and a second inserting cavity 15 formed on the inner sides of the top surface 11 and the side surfaces 12, and a guide hole 16 between the first inserting cavity 14 and the second inserting cavity 15, wherein the top surface 11 is provided with a clamping groove 110 and a through hole 111 which are formed by downward depression, the clamping groove 110 is used for being in snap fit with the metal shell 40, and the through hole 111 penetrates through the first inserting cavity 14 downwards and is used for allowing the elastic sheet 45 of the metal shell 40 to extend into the first inserting cavity 14 downwards. The side surface 12 is provided with a limiting groove 120 which is in snap fit with the metal shell 40. The front end abutting surface 13 is rectangular, the first plugging cavity 14 penetrates through the front end abutting surface 13 forward, a circular plugging port 141 is formed on the front end abutting surface 13, the second plugging cavity 15 penetrates through the front end abutting surface 13 forward, a flat USB plugging port 151 is formed on the front end abutting surface 13, the guide hole 16 is formed in the front end abutting surface 13 and extends backward, the guide hole 16 is also circular, and has a guide function, so that the plugging/assembling can be realized quickly and accurately, the circular plugging port 141, the guide hole 16 and the flat USB plugging port 151 are sequentially arranged from left to right, and centers of the three are located on the same straight line, or at least centers of the circular plugging port 141 and the flat USB plugging port 151 are located on the same straight line.

In addition, the rear side of the insulating body 10 is further provided with a rear end mounting surface 17 and a protrusion 18 protruding rearward beyond the rear end mounting surface 17, the rear end mounting surface 17 is provided with an inward recessed mounting opening 171 for mounting the USB plug-in module 30, and a stopper 172 is provided in the mounting opening 171 for preventing the USB plug-in module 30 from being blocked so as to be excessively mounted forward into the mounting opening 171. As shown in fig. 8, the protruding portion 18 is formed with an inverted U-shaped slot 181, an inner slot 182 and a central slot 183 located inside the slot for mounting the terminal module 20, the inverted U-shaped slot 181, the inner slot 182 and the central slot 183 all penetrate from back to front to the first plugging cavity 14, so that the terminal module 20 can be exposed in the first plugging cavity 14 to electrically plug with a mating terminal (not shown), wherein the inverted U-shaped slot 181 includes a pair of side slots 184 and a top slot 185, the pair of side slots 184 are distributed on the left and right sides of the central slot 183, the inner slot 182 is located between the central slot 183 and one side slot 184, and the inner slot 184 and the side slots are adjacently disposed and mutually penetrate, so that the detecting terminal 23 in the inner slot 182 can be conveniently overlapped with the grounding terminal 21 in the adjacent side slot 184; the central groove 183 is concave and has a tongue therein. The bottom of the protruding portion 18 is provided with a skirt portion 186 protruding backward, and the skirt portion 186 is provided with a plurality of limiting barriers 187 for clamping the tail portion of the terminal module 20 to realize fixing and limiting.

In order to better hold the metal shell 40, in the preferred embodiment of the utility model, the rear side of the insulation body 10 is further provided with a holding portion 19 protruding from the rear mounting surface 17, a holding groove 191 is formed between the holding portion 19 and the rear mounting surface 17, and the holding groove 191 is located at one side of the mounting opening 171 and is used for holding the edge of the rear cover 43 of the metal shell 40. In this way, the metal shell 40 can stably and reliably hold the insulating body 10, and is not easy to warp or separate, thereby providing a more effective protection effect.

The terminal module 20 includes a ground terminal 21, a power terminal 22 and a detection terminal 23, which are respectively inserted into the inverted U-shaped slot 181, the central slot 183 and the inner slot 182, wherein the ground terminal 21 is provided with a pair of contact arms 24 oppositely arranged and a top arm 25 connected with the two contact arms 24, the two contact arms 24 are in a sheet shape and respectively inserted into the pair of side slots 184, the top arm 25 is inserted into the top slot 185, one of the contact arms 24 is provided with a blanking hole 241 and an elastic arm 242 formed in the blanking hole 241, the elastic arm 242 extends from front to back, the front end of the elastic arm is integrally connected with the front end of the contact arm 24, the rear end of the elastic arm is a free tail end a, and the rear ends of the two contact arms 24 are provided with welding arms 243 extending downward. The power terminal 22 is located in the central groove 183, and the power terminal 22 is provided with a cylindrical docking arm 221, and the docking arm 221 is located in the first plugging cavity 14 and located at the center of the circular plugging port 141. The detecting terminal 23 is in a sheet shape, and is provided with a detecting arm 231, the detecting arm 231 and the free end a of the elastic arm 242 are adjacently arranged, and are mutually overlapped to realize conduction, when the butt-joint element is inserted into the first plugging cavity 14, the abutting-joint element exerts pressure on the elastic arm 242 and forces the elastic arm 242 to be far away from the detecting arm 231, so as to disconnect the connection with each other.

The metal shell 40 is provided with a top cover 41, a pair of side covers 42 and a rear cover 43, the top cover 41 covers the top surface 11 of the insulating body 10, the side covers 42 cover the pair of side surfaces 12 of the insulating body 10, wherein the top cover 41 is provided with a folded piece 44 and an elastic piece 45 which are formed by bending downwards, the folded piece 44 is used for being clamped in a clamping groove 110 on the top surface 11 of the insulating body 10 to realize fixed matching with the insulating body 10, and the elastic piece 45 extends downwards into a through hole 111 on the top surface 11 of the insulating body 10 and is positioned right above the butt joint arm 221; the rear cover 43 is bent downward from the rear side edge of the top cover 41, and covers the rear mounting surface 17 of the insulating body 10, and one side edge of the rear cover 43 is retained in the retaining groove 191, so that the rear cover cannot be tilted.

USB plug-in module 30 is equipped with butt joint portion 31 and from butt joint portion 31 rear side downwardly extending's spacing portion 32, butt joint portion 31 install in second grafting chamber 15 to be equipped with one and shield shell 33, shield shell 33 and extend backward and cover spacing portion 32 to shield shell 33 and still be equipped with a pair of downwardly extending's fixed arm 34, fixed arm 34 cover in spacing portion 32's both sides surface, spacing portion 32 accept in installing port 171, and receive stopping of backstop portion 172 is spacing. Preferably, the docking portion 31 of the USB plug-in module 30 has a Type-C interface.

In summary, the first plugging cavity 14 and the second plugging cavity 15 are simultaneously disposed on the insulating body 10, so that two different plugging functions can be satisfied, and transmission of the dc power supply and transmission of the USB signal are simultaneously achieved.

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 present invention without departing from the scope of the present invention as defined in the appended claims.

Claims

1. The utility model provides an electric connecting device, includes insulator, accepts in the terminal module in insulator, installs in the USB grafting module in insulator and covers the metal casing on insulator, insulator is equipped with a front end butt joint face and a rear end installation face, metal casing be equipped with cover in rear end installs the back lid on the face, its characterized in that: the front end abutting surface is distributed with a circular interface and a USB interface, the rear side of the insulation body is provided with a clamping part which is protruded on the rear end mounting surface, and a clamping groove for clamping the rear cover is formed between the clamping part and the rear end mounting surface.

2. The electrical connection device of claim 1, wherein: an inward-concave mounting opening is formed in the rear end mounting surface of the insulating body, a stopping portion is arranged in the mounting opening, the rear cover shields the mounting opening, and the clamping groove is located on one side of the mounting opening.

3. The electrical connection device of claim 2, wherein: the USB plug-in module is accommodated in the mounting port, and is also provided with a butt joint part and a limiting part which is abutted against the stopping part, the butt joint part is arranged corresponding to the USB plug-in port, and the butt joint part and the limiting part are both positioned on the inner side of the rear cover.

4. The electrical connection device of claim 3, wherein: the insulating body is also provided with a protruding part which protrudes backwards and exceeds the rear end mounting surface, and the protruding part is provided with an inverted U-shaped slot, an inner slot and a central slot which are positioned at the inner side of the inverted U-shaped slot and used for accommodating the terminal module.

5. The electrical connection device of claim 4, wherein: the inverted U-shaped slot comprises a pair of side slots and a top slot, the pair of side slots are distributed on the left side and the right side of the central slot, and the inner slot is positioned between the central slot and one side slot; the central groove is concave.

6. The electrical connection device of claim 5, wherein: the terminal module comprises a grounding terminal, a power supply terminal and a detection terminal, wherein the power supply terminal is inserted into the central groove and is provided with a cylindrical butt joint arm, the cylindrical butt joint arm is positioned at the central position of the circular socket, and the detection terminal is in lap joint with the grounding terminal.

7. The electrical connection device of claim 6, wherein: the grounding terminal is provided with a pair of contact arms arranged oppositely and a top arm for connecting the two contact arms, the two contact arms are in a sheet shape and are respectively inserted into the pair of side grooves, and the top arm is inserted into the top groove.

8. The electrical connection device of claim 1, wherein: the circular interface is a direct-current power supply interface, and the USB interface is a Type-C Type USB interface.

9. The electrical connection device of claim 8, wherein: the metal shell is further provided with a top cover and a pair of side covers, and the top cover is provided with an elastic sheet which extends downwards into the circular insertion port.