CN212033301U

CN212033301U - USB connector capable of stably contacting

Info

Publication number: CN212033301U
Application number: CN202021289295.6U
Authority: CN
Inventors: 涂瀚; 王伟; 王振江; 涂安平
Original assignee: Yiteng Electronic Science & Technology Kunshan Co ltd
Current assignee: Yiteng Electronic Science & Technology Kunshan Co ltd
Priority date: 2020-07-02
Filing date: 2020-07-02
Publication date: 2020-11-27
Anticipated expiration: 2030-07-02

Abstract

The utility model discloses a USB connector that can stable contact, it includes an insulator, a plurality of accept plug terminal in this insulator and a set of dress and surround this insulator's shell on this insulator. The contact portion of each plug terminal has a horizontal contact surface. When the plug terminal is arranged in the insulating body, the contact part of the plug terminal sinks into the groove of the tongue plate. The utility model discloses there is the problem of normal position degree deviation when the USB connector can tolerate the butt joint to can in time make the correction in order to ensure the electric property contact stability after the butt joint.

Description

USB connector capable of stably contacting

Technical Field

The present invention relates to a connector technology field, and more particularly to a USB connector capable of stably contacting.

Background

Universal Serial Bus (USB) connectors are a way to connect electronic products, have the characteristics of faster transmission speed, support for hot plug and connection of multiple devices, and are widely used in various products such as mobile products, audio-visual products, automotive electronics, multimedia products, and electric appliances.

Generally, the contact surface of the plug terminal of the USB plug connector is flush with or slightly higher than the upper surface of the tongue plate of the insulating body thereof. However, in actual use, since the contact surface of the plug terminal is flush with or higher than the upper surface of the tongue plate, this design cannot tolerate the occurrence of misalignment at the time of mating at all. For example, when the USB plug connector is mated with the receptacle connector, if there is a misalignment between the two connectors, the structural design cannot be corrected, and once the mating is misaligned, an open circuit or a short circuit is easily caused.

Therefore, there is a need to provide a new USB connector to overcome the drawbacks of the prior art.

SUMMERY OF THE UTILITY MODEL

A primary object of the present invention is to provide a USB connector capable of stabilizing contact, wherein the plug terminal is disposed in the insulating body to adopt a sinking structure, which can allow the alignment deviation in the butt joint, and make corrections in time to ensure the stability of the electrical contact after the butt joint.

Other objects and advantages of the present invention can be further understood from the technical features disclosed in the present invention.

In order to achieve the purpose, the utility model adopts the following technical scheme: a USB connector capable of stable contact comprises an insulating body, a plurality of plug terminals accommodated in the insulating body, and a shell assembled on the insulating body and surrounding the insulating body. The insulating body is provided with a base, a tongue plate extending forwards from the front surface of the base, a plurality of grooves formed on two opposite surfaces of the tongue plate and a plurality of terminal containing channels formed on the insulating body, wherein the grooves are communicated with the terminal containing channels correspondingly. Each plug terminal is arranged in the corresponding groove and the corresponding terminal accommodating channel, and is provided with a contact part at the front end, a welding part at the tail end and a fixing part in the middle, wherein the contact part is provided with a horizontal contact surface, the contact part is arranged in the corresponding groove, the horizontal contact surface is exposed in the groove, the welding part is exposed outside the insulating body, and the fixing part is arranged in the corresponding terminal accommodating channel. The depth of the groove is larger than the thickness of the contact part of the plug terminal, and when the plug terminal is arranged in the insulating body, the contact part of the plug terminal sinks into the groove.

In one embodiment, the grooves are divided into two rows extending rearwardly from the upper and lower surfaces of the tongue and communicating with corresponding terminal-receiving passages in the base.

In one embodiment, the plug terminals are divided into two rows, wherein the horizontal contact surfaces of the plug terminals in the upper row are lower than the upper surface of the tongue plate; and the horizontal contact surface of the plug terminal located in the lower row is higher than the lower surface of the tongue plate.

In one embodiment, the base is flat and the tongue is horizontal.

In one embodiment, the housing is in the form of a flat sleeve that is secured to the base.

In one embodiment, the housing surrounds the tongue plate and forms a docking space around the tongue plate.

In one embodiment, the housing is a metal shell.

Compared with the prior art, the utility model discloses USB connector's plug terminal adopts the formula structure that sinks to set up in insulator for this hyoplastron can surround this plug terminal's horizontal contact surface, when this USB connector takes place the dislocation male condition with corresponding socket connector, the elasticity contact zone of socket connector's socket terminal can be guided into by corresponding recess, thereby form exact electric connection with this USB connector's plug terminal, avoid the contact zone of mutually supporting to take place to open circuit or the phenomenon of short circuit because normal position is bad. Therefore, the utility model discloses there is the problem of normal position degree deviation when the USB connector can tolerate the butt joint to can in time make the correction in order to ensure the electric property contact stability after the butt joint.

Drawings

Fig. 1 is a schematic perspective view of the USB connector of the present invention.

Fig. 2 is an exploded view of the USB connector of the present invention.

Fig. 3 is a structure diagram of the plug terminal and the insulating body of the present invention.

Fig. 4 is a cross-sectional view of the USB connector of the present invention to schematically show the positional structure relationship between the plug terminal and the insulating body, especially the positional relationship between the plug terminal and the groove.

The main reference numbers in the drawings of the specification of the present invention are as follows:

USB connector 1 insulation body 10

Base 11 tongue plate 12

Upper surface 120 and lower surface 121

Groove 13 butt joint space 14

Contact portion 21 of plug terminal 20

Horizontal contact surface 210 weld 22

A housing 30.

Detailed Description

The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.

Referring to fig. 1 to 3, the USB connector 1 of the present invention includes an insulating housing 10, a plurality of plug terminals 20 accommodated in the insulating housing 10, and a housing 30 assembled on the insulating housing 10 and surrounding the insulating housing 10.

As shown in fig. 3, the insulative housing 10 has a flat base 11, a horizontal tongue plate 12 extending forward from the front surface of the base 11, a plurality of grooves 13 formed on two opposite surfaces (such as the upper surface 120 and the lower surface 121) of the tongue plate 12, and a plurality of terminal receiving channels (not shown) formed on the insulative housing 10, wherein the grooves 13 and the terminal receiving channels are correspondingly communicated with each other to receive corresponding plug terminals 20. In this embodiment, the grooves 13 are divided into two rows, and the grooves 13 extend rearward from two opposite surfaces (e.g., the upper surface 120 and the lower surface 121) of the tongue plate 12 and communicate with corresponding terminal receiving passages in the base 11. Each groove 13 is recessed inward from a corresponding surface (e.g., the upper surface 120 or the lower surface 121) of the tongue plate 12, and thus has a depth greater than the thickness of the corresponding plug terminal 20, which will be described in detail later.

As shown in fig. 2, the housing 30 is in the form of a flat sleeve, which is fixed on the base 11 and surrounds the tongue 12, so that a mating space 14 (see fig. 1) for inserting a mating connector (socket connector) is formed around the tongue 12. In this embodiment, the housing 30 is a metal shell.

As shown in fig. 3, the plug terminals 20 are divided into two rows and disposed in the corresponding grooves 13 and the terminal receiving passages, respectively. Each plug terminal 20 has a contact portion 21 at the front end, a soldering portion 22 at the rear end, and a fixing portion (not shown) in the middle. Wherein the contact portions 21 are located in the corresponding grooves 13, and the depth of the groove 13 is greater than the thickness of the contact portion 21 of the plug terminal 20; the soldering portion 22 is exposed outside the insulating body 10 to be electrically connected to a circuit board; the fixing portions are located in the corresponding terminal receiving passages.

As shown in fig. 3 and 4, the contact portion 21 of each plug terminal 20 has a horizontal contact surface 210. When the plug terminal 20 is mounted in the insulative body 10, the horizontal contact surfaces 210 are exposed in the corresponding grooves 13. Specifically, when the plug terminal 20 is mounted in the insulating body 10, the horizontal contact surface 210 of the plug terminal 20 located at the upper row is lower than the upper surface 120 of the tongue plate 12; while the horizontal contact surface 210 of the plug terminal 20 located in the lower row is higher than the lower surface 121 of the tongue plate 12. That is, the contact portion 21 of the plug terminal 20 is sunk into the groove 13 of the tongue plate 12, does not extend beyond the

corresponding surfaces

120, 121 of the tongue plate 12, and is not flush with the

corresponding surfaces

120, 121.

The sunken structure enables the tongue plate 12 to surround the horizontal contact surface 210 of the plug terminal 20, and when the USB connector 1 is inserted into the corresponding receptacle connector in a misaligned manner, the elastic contact area of the receptacle terminal of the receptacle connector can be guided into the corresponding groove 13, so as to form a correct electrical connection with the plug terminal 20 of the USB connector 1. That is, when the alignment degree of the two terminals is slightly deviated, the sinking structure of the plug terminal 20 can prevent the contact area from being broken or short-circuited due to poor alignment degree.

To sum up, the utility model discloses USB connector 1 has the problem of normal position degree deviation when can allowing the butt joint to can in time make the correction in order to ensure the electric property contact stability after the butt joint.

Claims

1. A USB connector capable of being stably contacted comprises an insulating body, a plurality of plug terminals accommodated in the insulating body and a shell assembled on the insulating body and surrounding the insulating body;

the insulating body is provided with a base, a tongue plate extending forwards from the front surface of the base, a plurality of grooves formed on two opposite surfaces of the tongue plate and a plurality of terminal containing channels formed on the insulating body, wherein the grooves and the terminal containing channels are correspondingly communicated with each other;

each plug terminal is arranged in the corresponding groove and the corresponding terminal accommodating channel, and is provided with a contact part at the front end, a welding part at the tail end and a fixing part in the middle, wherein the contact part is provided with a horizontal contact surface, the contact part is arranged in the corresponding groove, the horizontal contact surface is exposed in the groove, the welding part is exposed outside the insulating body, and the fixing part is arranged in the corresponding terminal accommodating channel;

the method is characterized in that: the depth of the groove is larger than the thickness of the contact part of the plug terminal, and when the plug terminal is arranged in the insulating body, the contact part of the plug terminal sinks into the groove.

2. The contact-stable USB connector of claim 1, wherein: the grooves are divided into two rows, extend backwards from the upper surface and the lower surface of the tongue plate respectively and are communicated with the corresponding terminal accommodating channels in the base.

3. The contact-stable USB connector of claim 2, wherein: the plug terminals are divided into two rows, wherein the horizontal contact surfaces of the plug terminals positioned on the upper row are lower than the upper surface of the tongue plate; and the horizontal contact surface of the plug terminal located in the lower row is higher than the lower surface of the tongue plate.

4. The contact-stable USB connector of claim 1, wherein: the base is flat and the tongue plate is horizontal.

5. The contact-stable USB connector of claim 4, wherein: the housing is in the form of a flat sleeve which is fixed to the base.

6. The contact-stable USB connector of claim 5, wherein: the shell surrounds the tongue plate and forms a butt space around the tongue plate.

7. The contact-stable USB connector of claim 6, wherein: the shell is a metal shell.