CN216529512U - USB connector with stable structure - Google Patents

Abstract

The utility model discloses a USB connector with a stable structure, which comprises an insulating body, a shielding shell, a plurality of flat terminals and a plurality of elastic terminals. A first limiting portion is protruded from the upper surface of the base, and a second limiting portion is protruded from the lower surface of the base. The base is provided with a first limiting groove and a second limiting groove, which cooperate with the shielding A first notch is formed on the rear edge of the upper surface of the shell, and a second notch is formed on the rear edge of the lower surface of the shielding shell. middle; the rear end of the upper surface of the shielding shell is punched downward to form a limiting piece, and the rear edge of the lower surface of the shielding shell is bent and extended to extend the limiting feet; so that the shielding shell and the insulating body are tightly installed together, even if many times It can also be used for plugging and unplugging, and there will be no loose shielding shell, which ensures the stability of the transmission rate of the connector, and at the same time, the service life is longer, which further improves the user experience.

Description

Sturdy USB connector

technical field

The utility model relates to the technology in the field of connectors, in particular to a USB connector with a stable structure.

Background technique

In November 2008, the new-generation USB 3.0 (SuperSpeed USB) standard formulated by industry giants such as Intel, Microsoft, Hewlett-Packard, Texas Instruments, NEC, and ST-NXP was officially completed and publicly released. The USB 3.0 standard provides ten times the transfer speed and higher energy efficiency of USB 2.0, and can be widely used in PC peripherals and consumer electronics. The development process of the USB (Universal Serial Bus) standard is as follows: the first version of USB 1.0 appeared in 1996, with a speed of only 1.5Mb/s; two years later, it was upgraded to USB 1.1, and the speed was greatly increased to 12Mb/s ;In April 2000, USB 2.0, which is still widely used at present, was launched, and the speed reached 480Mb/s. However, the speed of USB 2.0 could not meet the application needs. In November 2008, USB 3.0 came into being, the maximum transmission Bandwidth up to 5.0Gb/s.

The USB 3.0 connector needs to be plugged and unplugged many times during use. After the existing USB 3.0 connector is plugged and used many times, the shielding shell is prone to loosening or even falling off, which will not only affect the data transmission rate, but also As a result, the service life of the USB 3.0 connector is not long, and it is easily damaged during use, and the use cost is relatively large, thereby affecting the user experience. Therefore, it is necessary to further improve the existing USB 3.0 connector structure.

Utility model content

In view of this, the main purpose of the present invention is to provide a USB connector with a stable structure, which can effectively solve the problems that the existing USB 3.0 connector is easily damaged during use, has a short life, and The use cost is high and the user experience is not good.

To achieve the above object, the present invention adopts the following technical scheme:

A structurally stable USB connector, comprising an insulating body, a shielding shell, a plurality of flat terminals and a plurality of elastic terminals;

The insulating body includes a base and a tongue plate integrally extending forward from the front end of the base. The upper surface of the base is protruded with a first limiting portion, and the lower surface of the base is protruded with a second limiting portion. , the base is provided with a first limit slot and a second limit slot, the first limit slot and the second limit slot are respectively located on the side of the first limit part and the second limit part;

The shielding shell is sleeved on the outside of the insulating body and forms an insertion cavity with the tongue plate. The limiting portion and the second limiting portion are respectively clamped into the first notch and the second notch from the back to the front; the rear end of the upper surface of the shielding shell is punched downward to form a limiting piece, and the limiting piece is snapped into the first limiting piece. In the position slot, the rear edge of the lower surface of the shielding shell is bent and extended to extend a position limit pin, and the position limit foot is clamped into the second position limit groove;

The plurality of plate terminals and the plurality of spring terminals are all disposed on the insulating body, the first contact portions of the plurality of plate terminals and the second contact portions of the plurality of spring terminals are exposed on the surface of the tongue plate, and the first contact portions of the plurality of plate terminals are exposed on the surface of the tongue plate. Both the welding part and the second welding parts of the plurality of elastic terminal terminals extend horizontally and rearwardly from the base.

As a preferred solution, the first limit slot and the second limit slot are both open at the rear end, wherein the first limit slot is located in front of the first limit portion, and the second limit slot is located at the second limit Correspondingly, the inner wall surface of the first notch abuts on the front side of the first limiting portion, the inner wall surface of the second notch abuts on the front side of the second limiting portion, and the limiting piece abuts on the first limiting portion. On the inner wall surface of the limiting groove, the limiting foot abuts on the inner wall surface of the second limiting groove.

As a preferred solution, extending portions are respectively extended backward on the left and right sides above the rear end surface of the base, and the first limiting portion is located on the extending portions.

As a preferred solution, the first limit portion, the second limit portion, the first limit groove and the second limit groove are two symmetrically arranged left and right, and correspondingly, the first gap, the second gap , Limiting piece and Limiting feet are also two symmetrically arranged left and right.

As a preferred solution, the upper and lower surfaces of the rear end of the tongue plate are formed with a heat dissipation port for partially exposing the spring terminal, and the heat dissipation port is close to the front side of the base.

As a preferred solution, the flat terminal includes a first contact portion, a first fixing portion and a first welding portion that are integrally formed and bent and connected in sequence, the first fixing portion is buried in the insulating body, and the first fixing portion is opened There are a plurality of first fixing holes, the plurality of first fixing holes are arranged at intervals along the length direction of the first fixing portion and are all buried in the insulating body.

As a preferred solution, the tongue plate is provided with a terminal slot, and the elastic sheet terminal includes a second contact part, a horizontal part, an inclined part, a second fixed part and a second welding part which are integrally formed and bent in sequence. The two contact parts, the horizontal part and the inclined part are all suspended in the terminal slot, the second fixing part is embedded in the insulating body, and the second fixing part is provided with a second fixing hole, and the second fixing hole is embedded in the insulating body.

As a preferred solution, there are five flat terminals and four spring terminals.

As a preferred solution, the surrounding sides of the shielding shell are all integrally bent inwardly to form an elastic sheet, and the elastic sheet extends inwardly into the insertion cavity.

As a preferred solution, the shielding shell is formed by integrally bending and splicing steel sheets, and the rear end of the shielding shell is integrally formed with two first connecting feet positioned and installed with the PCB board. The side edge is integrally bent outward to form a second connecting pin which is connected with the PCB board.

Compared with the prior art, the present utility model has obvious advantages and beneficial effects. Specifically, it can be known from the above technical solutions:

A first limiting portion is protruded from the upper surface of the base, and a second limiting portion is protruded from the lower surface of the base. The base is provided with a first limiting groove and a second limiting groove, which cooperate with the shielding A first notch is formed on the rear edge of the upper surface of the shell, and a second notch is formed on the rear edge of the lower surface of the shielding shell. In the gap; the rear end of the upper surface of the shielding shell is punched downward to form a limiting piece, the limiting piece is snapped into the first limiting groove, and the rear edge of the lower surface of the shielding shell is bent and extended to extend the limiting foot, the limiting piece The feet are snapped into the second limiting groove; so that the shielding shell and the insulating body can be connected to the first limiting portion, the second limiting portion, the first limiting portion, the The first limit slot and the second limit slot are fastened and installed together. Even if they are used for multiple times of plugging and unplugging, the shielding shell will not be loosened, nor will it fall off, which avoids damage to the connector and ensures that the connector is not damaged. The transmission rate is stable and the service life is longer, which reduces the user's use cost and further improves the user's use experience.

In order to illustrate the structural features and functions of the present invention more clearly, the present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

Description of drawings

Fig. 1 is the three-dimensional structure schematic diagram of the preferred embodiment of the present utility model;

Fig. 2 is the three-dimensional structure schematic diagram of the preferred embodiment of the present utility model from another angle;

3 is a schematic three-dimensional structure diagram of another angle of the preferred embodiment of the present invention;

Fig. 4 is the partial assembly schematic diagram of the preferred embodiment of the present utility model;

FIG. 5 is a schematic diagram of an exploded state of a preferred embodiment of the present invention.

Description of drawings:

10. Insulation body 101. The first limit slot

102. Second limit slot 103. Heat dissipation port

104. Terminal slot 11. Base

12. Tongue plate 13. The first limit part

14. Second limit part 15. Extension part

20. Shielding shell 201. Insertion cavity

202, the first gap 203, the second gap

21. Limiting piece 22. Limiting foot

23. Shrapnel 24. The first connecting pin

25. Second connecting pin 30. Flat terminal

301, the first fixing hole 31, the first contact part

32. The first welding part 33. The first fixing part

40. Shrapnel terminal 401. Second fixing hole

41, the second contact part 42, the second welding part

43. Horizontal part 44. Inclined part

45. The second fixing part.

Detailed ways

Please refer to FIG. 1 to FIG. 5 , which show the specific structure of the preferred embodiment of the present invention, which includes an insulating body 10 , a shielding shell 20 , a plurality of flat terminals 30 and a plurality of spring terminals 40 .

The insulating body 10 includes a base 11 and a tongue plate 12 integrally extending forward from the front end of the base 11 . The upper surface of the base 11 protrudes with a first limiting portion 13 , and the lower surface of the base 11 protrudes A second limiting portion 14 is provided, the base 11 is provided with a first limiting slot 101 and a second limiting slot 102 , the first limiting slot 101 and the second limiting slot 102 are respectively located at the first limiting position In this embodiment, the first limiting slot 101 and the second limiting slot 102 are both open at the rear end, wherein the first limiting slot 101 is located at the first In front of the limiting portion 13 , the second limiting slot 102 is located behind the second limiting portion 14 ; extending portions 15 extend backward from the left and right sides of the rear end surface of the base 11 respectively. The first limiting portion 13, the second limiting portion 14, the first limiting slot 101 and the second limiting slot 102 are two symmetrically arranged left and right; the tongue plate The upper and lower surfaces of the rear end of the 12 are formed with a heat dissipation port 103 for partially exposing the spring terminal 40. The heat dissipation port 103 is close to the front side of the base 11. The service life is affected by the high temperature; the tongue plate 12 is provided with a terminal slot 104 .

The shielding shell 20 is sleeved outside the insulating body 10 and forms an insertion cavity 201 with the tongue plate 12 . A first gap 202 is formed on the rear edge of the upper surface of the shielding shell 20 , and a first gap 202 is formed on the rear edge of the lower surface of the shielding shell 20 The second notch 203, the aforementioned first limiting portion 13 and the second limiting portion 14 are respectively clipped into the first notch 202 and the second notch 203 from the back to the front; the rear end of the upper surface of the shielding shell 20 is formed by punching downward. Limiting piece 21, the limiting piece 21 is snapped into the first limiting groove 101, and the rear edge of the lower surface of the shielding shell 20 is bent and extended to extend the limiting pin 22, the limiting pin 22 is snapped into the second limiting slot 102 In this embodiment, the inner wall surface of the first notch 202 abuts on the front side of the first limiting portion 13 , the inner wall surface of the second notch 203 abuts on the front side of the second limiting portion 14 , The limiting piece 21 abuts on the inner wall surface of the first limiting groove 101 , and the limiting feet 22 abuts on the inner wall surface of the second limiting groove 102 ; the first notch 202 , the second notch 203 , and the limiting piece 21 And the limiting feet 22 are also two symmetrically arranged left and right; the surrounding sides of the shielding shell 20 are integrally bent inwardly to form an elastic piece 23, the elastic piece 23 extends inwardly into the insertion cavity 201, and the elastic piece is used for The plug-in force when the connector is inserted is increased, so that the connection of the connector is more stable; the shielding shell 20 is formed by integrally bending and splicing steel sheets, and the rear end of the shielding shell 20 is integrally formed with two PCB The first connecting feet 24 for board positioning and installation, and the left and right sides of the shielding shell 20 are integrally bent outwards to form second connecting feet 25 which are connected to the PCB board.

The plurality of plate terminals 30 and the plurality of spring terminals 40 are all disposed on the insulating body 10 , and the first contact portions 31 of the plurality of plate terminals 30 and the second contact portions 41 of the plurality of spring terminals 40 are exposed on the surface of the tongue plate 12 . , the first welding parts 32 of the plurality of plate terminals 30 and the second welding parts 42 of the plurality of elastic terminals 40 both extend horizontally and rearwardly from the base 11; The first contact portion 31 , the first fixing portion 33 and the first welding portion 32 are bent and connected. The first fixing portion 33 is embedded in the insulating body 10 . The first fixing portion 33 is provided with a plurality of first fixing holes 301 . The plurality of first fixing holes 301 are arranged at intervals along the length direction of the first fixing portion 33 and are buried in the insulating body 10 . The first fixing holes 301 are used to enhance the stability of the connection between the flat terminal 30 and the insulating body 10 . The elastic sheet terminal 40 includes a second contact portion 41, a horizontal portion 43, an inclined portion 44, a second fixed portion 45 and a second welding portion 42, which are integrally formed and bent in sequence, and the second contact portion 41 and the horizontal portion 43. and the inclined portion 44 are suspended in the terminal slot 104 , the second fixing portion 45 is embedded in the insulating body 10 , the second fixing portion 45 is provided with a second fixing hole 401 , and the second fixing hole 401 is embedded in the insulating body 10 The second fixing hole 401 is used to enhance the stability of the connection between the shrapnel terminal 40 and the insulating body 10 to prevent the shrapnel terminal 40 from shaking or even falling off;

The key point of the design of the present invention is: the upper surface of the base is protruded with a first limiting portion, the lower surface of the base is protruded with a second limiting portion, and the base is provided with a first limiting groove and a second limiting portion. Two limiting grooves, a first notch is formed on the rear edge of the upper surface of the shielding shell, and a second notch is formed on the rear edge of the lower surface of the shielding shell. Snap into the first notch and the second notch; the rear end of the upper surface of the shielding shell is punched downward to form a limiting piece, the limiting piece is snapped into the first limiting groove, and the rear edge of the lower surface of the shielding shell is bent and extended A limit pin is drawn out, and the limit pin is clamped into the second limit slot; so that the shield shell and the insulating body can be respectively connected to the first limit portion through the first gap, the second gap, the limit piece and the limit pin. , The second limit part, the first limit groove and the second limit groove are fastened and installed together. Even if they are used for many times, the shielding shell will not be loosened, and it will not fall off. If the connector is damaged, the transmission rate of the connector is guaranteed to be stable, and the service life is also longer, which reduces the user's use cost and further improves the user's use experience.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes and modifications made to the above embodiments according to the technical essence of the present invention , all still belong to the scope of the technical solution of the present invention.

Claims (10)

1. A structurally stable USB connector, comprising an insulating body, a shielding shell, a plurality of flat terminals and a plurality of shrapnel terminals; The insulating body includes a base and a tongue plate integrally extending forward from the front end of the base. The upper surface of the base is protruded with a first limiting portion, and the lower surface of the base is protruded with a second limiting portion. , the base is provided with a first limit slot and a second limit slot, the first limit slot and the second limit slot are respectively located on the side of the first limit part and the second limit part; The shielding shell is sleeved on the outside of the insulating body and forms an insertion cavity with the tongue plate. The limiting portion and the second limiting portion are respectively clamped into the first notch and the second notch from the back to the front; the rear end of the upper surface of the shielding shell is punched downward to form a limiting piece, and the limiting piece is snapped into the first limiting piece. In the position slot, the rear edge of the lower surface of the shielding shell is bent and extended to extend a position limit pin, and the position limit foot is clamped into the second position limit groove; The plurality of plate terminals and the plurality of spring terminals are all disposed on the insulating body, the first contact portions of the plurality of plate terminals and the second contact portions of the plurality of spring terminals are exposed on the surface of the tongue plate, and the first contact portions of the plurality of plate terminals are exposed on the surface of the tongue plate. Both the welding part and the second welding parts of the plurality of elastic terminal terminals extend horizontally and rearwardly from the base. 2 . The structurally stable USB connector according to claim 1 , wherein the first limiting slot and the second limiting slot are both open at the rear end, wherein the first limiting slot is located at the first limiting position. 3 . The second limiting groove is located at the rear of the second limiting portion. Correspondingly, the inner wall surface of the first notch abuts on the front side of the first limiting portion, and the inner wall surface of the second notch abuts on the second limiting portion. On the front side of the positioning part, the limiting piece abuts on the inner wall surface of the first limiting groove, and the limiting foot abuts on the inner wall surface of the second limiting groove. 3 . The structure-stable USB connector according to claim 1 , wherein extending portions are respectively extended rearward on the left and right sides above the rear end surface of the base, and the first limiting portion is located on the extending portions. 4 . . 4 . The structurally stable USB connector according to claim 1 , wherein the first limiting portion, the second limiting portion, the first limiting slot and the second limiting slot are arranged symmetrically from left to right. 5 . Correspondingly, the first notch, the second notch, the limiting piece and the limiting foot are also two symmetrically arranged left and right. 5 . The structurally stable USB connector according to claim 1 , wherein the upper and lower surfaces of the rear end of the tongue plate are formed with a heat dissipation port for partially exposing the spring terminal, and the heat dissipation port is close to the base. 6 . front side. 6 . The structurally stable USB connector according to claim 1 , wherein the flat terminal comprises a first contact part, a first fixing part and a first welding part which are integrally formed and bent and connected in sequence, and the first The fixing portion is embedded in the insulating body, and the first fixing portion is provided with a plurality of first fixing holes. The plurality of first fixing holes are arranged at intervals along the length direction of the first fixing portion and are all buried in the insulating body. 7 . The structurally stable USB connector according to claim 1 , wherein a terminal slot is formed on the tongue plate, and the elastic sheet terminal comprises a second contact portion, a horizontal portion, a second contact portion, a horizontal portion, a second contact portion, a horizontal portion, a The inclined part, the second fixed part and the second welding part, the second contact part, the horizontal part and the inclined part are all suspended in the terminal groove, the second fixed part is buried in the insulating body, and the second fixed part is provided with a second fixed part The second fixing hole is buried in the insulating body. 8 . The structure-stable USB connector according to claim 1 , wherein there are five flat terminals and four elastic terminals. 9 . 9 . The structurally stable USB connector according to claim 1 , wherein the surrounding sides of the shielding shell are integrally bent inwardly to form elastic pieces, and the elastic pieces extend inwardly into the insertion cavity. 10 . 10 . The structure-stable USB connector according to claim 1 , wherein the shielding shell is formed by integrally bending and splicing steel sheets, and the rear end of the shielding shell is integrally formed downward by two pieces connected to the PCB board. 11 . As for the first connecting pin for positioning and installation, the left and right sides of the shielding shell are integrally bent outward to form a second connecting pin which is connected with the PCB board.

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