CN215834786U

CN215834786U - USB socket connector

Info

Publication number: CN215834786U
Application number: CN202122405755.8U
Authority: CN
Inventors: 刘传芳
Original assignee: Kunshan Jiahua Electronics Co Ltd
Current assignee: Kunshan Jiahua Electronics Co Ltd
Priority date: 2021-09-30
Filing date: 2021-09-30
Publication date: 2022-02-15
Anticipated expiration: 2031-09-30

Abstract

The application discloses a USB socket connector, which comprises a terminal module and a metal shell matched with the terminal module; the terminal module comprises an insulating body and a plurality of terminals fixed with the insulating body; the insulating body comprises a base part, a tongue root part and a tongue end part, wherein the tongue root part extends forwards from the base part; the metal shell comprises an outer sleeve part which is opened forwards, a tongue protection part which is positioned in the outer sleeve part and correspondingly surrounds and is adhered to the periphery of the tongue root, and a connecting part which integrally connects the outer sleeve part and the tongue protection part at the rear end edge of the outer sleeve part and the tongue protection part; the tongue end part protrudes to the front of the tongue protection part to form a cantilever, and the front end face of the base part is correspondingly attached to the rear surface of the connecting part. This USB socket overall structure is stable and in order to do benefit to miniaturized design.

Description

USB socket connector

Technical Field

The present application relates to the field of connectors, and more particularly, to a USB receptacle connector.

Background

The prior art refers to chinese utility model patent CN213484029U, which discloses a Type C USB socket, including terminal groups arranged in two rows, a middle plate arranged between the two rows of terminal groups, an insulator and a cover, wherein the insulator and the cover are integrated with the terminal group and the middle plate, the insulator includes a base, a thickened portion formed by forward extending the base, and a butt tongue portion formed by forward extending the thickened portion. The insulating body and the metal shell piece jointly define a plugging space which is open forward.

Wherein, a plurality of bulges are formed at the rear end of the metal shell part, and the metal shell part is correspondingly matched with the base part in a clamping way to form a groove, so that the metal shell part is assembled and fixed with the insulating body. This assembly and securing requires a wider base structure (in the mating connector insertion direction), which increases the overall length of the receptacle; in addition, the fixing of the metal shell part and the insulating body still has the problem of unreliability.

In addition, after the butting connector is inserted into the inserting and pulling space, the insertion stop of the butting connector is realized through the front end face of the base part, the front end face of the base part needs to bear a large impact force from the butting connector, the base part is easy to damage, and the insulating body and the metal shell piece are easy to loosen.

Therefore, there is a need to design a new USB receptacle connector to overcome the above-mentioned drawbacks of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a novel USB socket connector, its overall structure is stable and in order to do benefit to miniaturized design.

In order to achieve the above purpose, the present application provides the following technical solutions:

a USB socket connector comprises a terminal module and a metal shell matched with the terminal module;

the terminal module comprises an insulating body and a plurality of terminals fixed with the insulating body;

the insulating body comprises a base part, a tongue root part and a tongue end part, wherein the tongue root part extends forwards from the base part;

each terminal comprises a contact part at least partially exposed out of the surface of the tongue end part, a fixed part which is formed by extending backwards from the contact part and is fixed in the insulating body, and a butt joint pin which extends backwards from the fixed part and out of the base part;

a plurality of terminals are arranged into an upper row terminal group and a lower row terminal group, the contact part of each terminal of the upper row terminal group is exposed from the upper surface of the tongue end part, and the contact part of each terminal of the lower row terminal group is exposed from the lower surface of the tongue end part;

the metal shell comprises an outer sleeve part which is opened forwards, a tongue protection part which is positioned in the outer sleeve part and correspondingly surrounds and is adhered to the periphery of the tongue root, and a connecting part which integrally connects the outer sleeve part and the tongue protection part at the rear end edge of the outer sleeve part and the tongue protection part;

the tongue end part protrudes to the front of the tongue protecting part to form a cantilever shape, and the base part is correspondingly positioned at the rear of the connecting part.

Further, the tongue protection portion is tubular with two open ends along the plugging direction of the butting connector.

Further, the outer sleeve portion, the tongue protector portion, the tongue end portion, and the connecting portion define an annular abutment cavity that is open forward, with a front surface of the base portion correspondingly conforming to a rear surface of the connecting portion.

Further, the front surface of the connecting part forms a stop surface for stopping the excessive insertion of the butting connector.

Furthermore, the tongue root is formed with spacing convex rib along the both ends face protrusion of width direction, spacing convex rib extends along the plug direction of butting connector, tongue protection portion is formed with the depressed groove along the both ends internal face correspondence of width direction, spacing convex rib corresponding insert the spacing in the depressed groove.

Furthermore, the metal shell is integrally formed by drawing processing, and no splicing seam is formed on the metal shell.

The metal outer cover comprises a combination plate covering the outer surface of the outer sleeve part and an anti-return plate formed by further extending the combination plate, and the anti-return plate is correspondingly limited and abutted against the rear surface of the base part.

Furthermore, the two ends of the anti-withdrawal plate along the terminal arrangement direction are respectively bent and extended to form fixing pins, and the fixing pins are correspondingly fixed with the butt circuit board.

Further, the withdrawal prevention plate extends over the entire length of the rear surface of the base in the terminal arrangement direction.

Furthermore, the two ends of the combination board along the terminal arrangement direction respectively extend to form fixing pieces, and the fixing pieces are correspondingly fixed with the butt joint circuit board.

Compared with the prior art, the beneficial effects of this application are: the whole structure is stable and is beneficial to miniaturization design.

Drawings

Fig. 1 is a perspective view of a USB receptacle connector according to the present application.

Fig. 2 is a perspective view of the USB receptacle connector shown in fig. 1 from another angle.

Fig. 3 is a partially exploded perspective view of the USB receptacle connector shown in fig. 2, particularly illustrating a perspective view of the metal shell and the metal cover after they are separated from the terminal mold.

Fig. 4 is a top view of the USB receptacle connector of the present application.

Fig. 5 is a sectional view taken along line a-a in fig. 4.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

For the sake of accuracy of the full-text representation, all the references relating to the directions are made with reference to fig. 1, and the direction of the X-axis is defined as the left-right direction; the direction of the Y axis is defined as the up-down direction, and the direction of the Z axis is defined as the front-back direction (i.e. the plugging direction of the mating connector), wherein the forward direction of the Z axis is the back direction.

Please refer to fig. 1 to 5, which illustrate a USB socket connector disclosed in the present application, including a terminal module 1 and a metal shell 2 engaged with the terminal module 1. In the present application, the metal shell 2 is preferably formed by a drawing process of a metal plate, or the metal shell 2 is further formed by a drawing process of a metal pipe body.

The terminal module 1 includes an insulating body 11 and a plurality of terminals 12 fixed to the insulating body 11. The insulating body 11 is made of an insulating plastic material by injection molding, and includes a base 111, a tongue base 112 extending forward from the base 111, and a tongue end 113 extending further forward from the tongue base 112. Each of the terminals 12 includes a contact portion 121 at least partially exposed on the surface of the tongue end portion 113, a fixing portion 122 formed to extend rearward from the contact portion 121 and fixed in the tongue root portion 112 and the base portion 111, and a mating pin 123 extending rearward from the fixing portion 122 and out of the base portion 111. A plurality of the terminals 12 are arranged into an upper row terminal group in which the contact portion 121 of each terminal 12 is exposed from the upper surface of the tongue end 123 and a lower row terminal group in which the contact portion 121 of each terminal 12 is exposed from the lower surface of the tongue end 123. The contact portion 121 is used for electrically contacting with a docking connector, and the docking pin 123 is used for electrically connecting with a docking circuit board. In the present application, the USB socket connector is a non-Pin-full USB-Type-C socket connector, that is, the number of terminals is less than 24, but the number of terminals 12 is not limited to the present application.

Referring to fig. 3, further, the USB socket connector of the present application further includes two middle plates 6, and the two middle plates 6 are respectively located on two sides of the tongue plate 112 along the left-right direction. Each middle plate 6 protrudes out of the side of the tongue 112 in the left-right direction, and is used for being electrically connected with a butting connector and being buckled.

Referring to fig. 1 to 5, the metal shell 2 includes an outer sleeve portion 21 opened forward, a tongue protection portion 22 located inside the outer sleeve portion 21 and corresponding to and surrounding the outer periphery of the tongue base portion 112, and a connecting portion 23 integrally connecting the outer sleeve portion 21 and the tongue protection portion 22 at the rear end edge thereof. The tongue end 123 protrudes forward of the tongue protector 22 in a cantilever manner, and the front end surface of the base 111 is correspondingly attached to the rear surface 231 of the connecting portion 23.

Specifically, in the embodiment of the present application, the tongue portion protection portion 22 is tubular with two open ends along the plugging direction of the mating connector. The outer sleeve portion 21, tongue protection portion 22, tongue end portion 123 and connecting portion 23 define an annular docking cavity 10 that is open forward. When the mating connector is inserted into the mating cavity 10, the front surface 232 of the connecting portion 23 forms a stop surface for stopping the excessive insertion of the mating connector.

Furthermore, limiting ribs 1121 are formed by protruding two end surfaces of the tongue root 112 along the width direction, the limiting ribs 1121 extend along the plugging and unplugging direction of the butting connector, recessed grooves 221 are correspondingly formed on the inner wall surfaces of two ends of the tongue protection portion 22 along the width direction, and the limiting ribs 1121 are correspondingly inserted and limited in the recessed grooves 221 for realizing the positioning when the terminal module 1 and the metal shell 2 are assembled.

In the present application, the USB receptacle connector further includes a metal cover 3 formed by stamping and bending a metal plate, and the metal cover 3 includes a coupling plate 31 covering the upper surface of the outer sleeve portion 21 and an anti-back plate 32 formed by bending and extending the coupling plate 31 further backward. The combination plate 31 and the outer sleeve part 21 are fixed by welding, and the anti-back plate 32 is correspondingly limited and abutted against the rear surface 1111 of the base part 111. For preventing the terminal module 1 from being separated rearward and withdrawn from the metal shell 2. Furthermore, the two ends of the anti-receding board 32 along the arrangement direction of the terminals 12 are respectively bent and extended to form fixing pins 321, and the fixing pins 321 are correspondingly fixed with the butt circuit board. Fixing pieces 311 are respectively formed by extending two ends of the combination board 31 along the arrangement direction of the terminals 12, and the fixing pieces 311 are correspondingly fixed with the butt circuit board. In the present application, it is preferable that the withdrawal prevention plate 32 extends over the entire length of the rear surface 1111 of the base 111 in the terminal arrangement direction, so as to obtain a better effect of preventing the terminal module 1 from being withdrawn backward from the metal shell 2.

In this application, metal casing 2 is whole to be formed by drawing processing, and no concatenation seam is gone up to metal casing 2. The tongue root 112 is completely covered by the integrally formed tongue protection part 22, so that the tongue end part 113 and the tongue root 112 can be stably fixed and are resistant to plugging; the base 111 is designed to be closely attached to the rear of the metal shell 2, so that the whole USB socket connector can be designed to be extremely short. The integral metal shell 2 has good structural strength. When the mating connector is inserted into the mating cavity 10, the insertion impact force of the mating connector is mainly counteracted by the front surface of the connecting portion 23, and the impact and damage to the terminal module 1 are small. In addition, the metal outer cover 3 is arranged, so that the USB socket connector is assembled on the butt joint circuit board more firmly, and meanwhile, a good anti-retreating effect is achieved on the terminal module 1. The anti-back plate 32 fully utilizes the space above the mating pins 123 of the terminals 12 and does not affect the overall length of the USB receptacle connector. This design USB socket connector can design 6 millimeters's extremely short length under the prerequisite of the butt connector (USB-Type-C plug connector) of matching standard length. Of course, in the application, the joint position of the terminal module 1 and the metal shell 2 can be further reinforced by applying glue.

Although embodiments of the present application have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the application, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A USB socket connector comprises a terminal module and a metal shell matched with the terminal module;

a plurality of the terminals are arranged into an upper row terminal group and a lower row terminal group, the contact part of each terminal of the upper row terminal group is exposed from the upper surface of the tongue end part, and the contact part of each terminal of the lower row terminal group is exposed from the lower surface of the tongue end part, and the terminal device is characterized in that:

2. The USB receptacle connector according to claim 1, wherein the tongue protection portion has a tubular shape with both ends open in the insertion and extraction direction of the mating connector.

3. The USB receptacle connector according to claim 1, wherein the outer sleeve portion, the tongue protector portion, the tongue end portion, and the connecting portion define an annular mating cavity that is open forward, and a front surface of the base portion correspondingly fits to a rear surface of the connecting portion.

4. The USB receptacle connector according to claim 1, wherein a front surface of the connecting portion forms a stopper surface for stopping excessive insertion of the mating connector.

5. The USB socket connector according to claim 2, wherein the tongue root has a limiting rib protruding from both ends of the tongue root in the width direction, the limiting rib extends in the insertion and extraction direction of the mating connector, the tongue protection portion has a corresponding recessed groove formed in the inner wall surface of both ends of the tongue protection portion in the width direction, and the limiting rib is inserted into and limited by the recessed groove.

6. The USB receptacle connector of claim 1, wherein the metal shell is integrally formed by a drawing process, and the metal shell has no splicing seams.

7. The USB socket connector according to claim 1, further comprising a metal cover, wherein the metal cover includes a coupling plate covering the outer surface of the outer sleeve portion and a back-moving prevention plate formed by further extending the coupling plate, and the back-moving prevention plate is correspondingly limited to abut against the rear surface of the base.

8. The USB socket connector of claim 7, wherein the anti-falling plate is bent and extended along two ends of the terminal array direction to form fixing pins, and the fixing pins are correspondingly fixed to the mating circuit board.

9. The USB receptacle connector according to claim 7, wherein the fall-back prevention plate extends over the entire length of the rear surface of the base in the terminal arrangement direction.

10. The USB socket connector of claim 7, wherein fixing pieces are formed on both ends of the combining plate along the terminal arrangement direction, and the fixing pieces are correspondingly fixed to the mating circuit board.