CN218602866U

CN218602866U - USB connector with switch protection

Info

Publication number: CN218602866U
Application number: CN202223083285.9U
Authority: CN
Inventors: 赵振
Original assignee: Shenzhen Lianxun Electronic Technology Co ltd
Current assignee: Shenzhen Lianxun Electronic Technology Co ltd
Priority date: 2022-11-21
Filing date: 2022-11-21
Publication date: 2023-03-10
Anticipated expiration: 2032-11-21

Abstract

The utility model discloses a take USB connector of switch protection, including metal casing, insulator and terminal group, metal casing installs the outside at insulator, terminal group installs the inside at insulator, and VBUS power supply terminal in the terminal group includes power movable terminal and power fixed terminal, and power movable terminal and power fixed terminal interval arrangement are in insulator, and power movable terminal includes first butt joint portion, second butt joint portion, first elasticity portion and the connecting portion that connect gradually from beginning to end, and power fixed terminal includes third butt joint portion and the first welding foot portion that connects gradually from beginning to end. The utility model has the advantages of simple structure, reasonable in design has switch protect function, adopts interval arrangement's power movable terminal and power fixed terminal for power movable terminal separates from each other with power fixed terminal under the normality, thereby makes VBUS power terminal be in normally opening uncharged state when the normality, has improved factor of safety widely.

Description

USB connector with switch protection

Technical Field

The utility model relates to a USB connector technical field, more specifically say, relate to a take USB connector of switch protection.

Background

Most of existing electronic equipment uses a USB connector for charging and data communication, wherein a VBUS power terminal in a terminal group of the USB connector is responsible for supplying power to accessed equipment, and the VBUS power terminal of the existing USB connector is also electrified in a normal state, so that the potential safety hazard is great.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to overcome the above-mentioned defect among the prior art, provide a take USB connector of switch protection, have switch protect function, adopt interval arrangement's power fixed terminal and power movable terminal for power movable terminal separates from each other with power fixed terminal under the normality, thereby makes VBUS power supply terminal be in normally open uncharged state when the normality, has improved factor of safety widely.

To achieve the above object, the present invention provides a USB connector with switch protection, comprising a metal shell, an insulator and a terminal set, wherein the metal shell is installed outside the insulator, the terminal set is installed inside the insulator, the insulator comprises a tongue plate and a bottom plate, the bottom plate is horizontally arranged, the tongue plate is vertically arranged on the top surface of the bottom plate, the terminal set comprises a VBUS power terminal, a D-signal terminal, a D + signal terminal and a GND ground terminal, the VBUS power terminal comprises a power fixed terminal and a power movable terminal, the power movable terminal and the power fixed terminal are arranged in the insulator at intervals, the power movable terminal comprises a first butt-joint part, a second butt-joint part, a first elastic part and a connecting part which are sequentially connected from head to tail, the connecting part of the power movable terminal is fixedly installed in the insulator, the first butt joint part, the second butt joint part and the first elastic part of the power supply movable terminal can swing back and forth in the insulating body, the power supply fixed terminal comprises a third butt joint part and a first welding leg part which are sequentially connected from head to tail, the third butt joint part of the power supply fixed terminal is fixedly arranged in the insulating body, the first welding leg part of the power supply fixed terminal outwards extends from the bottom of the bottom plate to the outside of the insulating body, the second butt joint part extends forwards and protrudes from the front of the tongue plate to the outside of the insulating body, the first butt joint part is bent backwards and extends in a direction close to the third butt joint part, and the first elastic part of the power supply movable terminal can deform when the second butt joint part is pressed so as to drive the first butt joint part to move in the direction of the power supply fixed terminal and contact with the third butt joint part to establish electrical connection, thereby charging the power supply movable terminal.

Thereby drive first butt joint portion rearward movement and contact with the third butt joint portion and establish electrical connection for the power movable terminal is electrified.

In a preferred embodiment, the power fixing terminal of the VBUS power terminal is further provided with a first retaining portion located between the third connecting portion and the first leg portion, and the first retaining portion is fixedly mounted in the insulating body.

In a preferred embodiment, both sides of the first retaining portion are provided with first retaining hooks, and the first retaining hooks are shaped as teeth inclined downwards and outwards.

In a preferred embodiment, a first mounting position for mounting a VBUS power terminal is arranged inside the tongue plate, a first mounting groove for mounting a connecting portion of the power movable terminal is formed in the front end of the bottom of the first mounting position, and a second mounting groove for mounting a power fixed terminal is formed in the rear end of the first mounting position.

As a preferred embodiment, each of the D-signal terminal, the D + signal terminal and the GND ground terminal includes a fourth butt-joint portion, a second elastic portion, a second backstop portion and a second solder foot portion, which are sequentially connected from head to tail, each of the fourth butt-joint portions protrudes forward from the front surface of the tongue plate to the outside of the insulating body, each of the second backstop portions is fixedly mounted inside the insulating body, and each of the second solder foot portions protrudes outward from the bottom of the bottom plate to the outside of the insulating body.

In a preferred embodiment, three second mounting positions are provided inside the tongue plate, the D-signal terminal, the D + signal terminal and the GND ground terminal are respectively mounted in the respective second mounting positions, third mounting grooves are provided at rear ends of bottoms of the three second mounting positions, and second retaining portions of the D-signal terminal, the D + signal terminal and the GND ground terminal are respectively mounted in the respective third mounting grooves.

As a preferred embodiment, both sides of each second retaining portion are provided with second retaining hooks shaped as teeth inclined downward and outward.

As a preferred embodiment, the front surface, the back surface and the two side surfaces of the metal shell are respectively provided with a spring piece, and the free ends of the spring pieces extend to the inside of the metal shell.

In a preferred embodiment, the connection parts of the elastic sheets positioned on the front surface and the back surface of the metal shell and the metal shell are provided with groove type reinforcing ribs.

As a preferred embodiment, the bottom of the two sides of the metal shell is provided with downward protruding sheet-shaped pins, the two sides of the bottom plate are provided with grooves for the sheet-shaped pins to pass through, the bottom of the metal shell is provided with a plurality of positioning convex blocks, the edge position of the top of the bottom plate is provided with a plurality of positioning concave positions for the positioning convex blocks to insert, the bottom of the two sides of the metal shell is provided with connecting convex lugs, the two sides of the bottom plate are provided with connecting concave positions, and each connecting convex lug is bent and clamped in the corresponding connecting concave position, so that the metal shell and the insulating body are fixedly connected.

Compared with the prior art, the beneficial effects of the utility model reside in that:

the utility model has the advantages of simple structure, reasonable in design has switch protect function, adopts interval arrangement's power fixed terminal and power movable terminal for power movable terminal separates from each other with power fixed terminal under the normality, thereby makes VBUS power terminal be in normally opening uncharged state when the normality, has improved factor of safety widely.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a USB connector with switch protection according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a terminal set according to an embodiment of the present invention;

fig. 3 is a first cross-sectional view of a terminal set and an insulating body provided in an embodiment of the present invention;

fig. 4 is a second cross-sectional view of the terminal set and the insulating body according to the embodiment of the present invention;

fig. 5 is an exploded view of a USB connector with switch protection according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Referring to fig. 1, an embodiment of the present invention provides a USB connector with switch protection, including a metal shell 2, an insulating body 3 and a terminal group 1, the metal shell 2 is installed outside the insulating body 3, the terminal group 1 is installed inside the insulating body 3, the insulating body 3 includes a tongue plate 31 and a bottom plate 32, the bottom plate 32 is horizontally disposed, the tongue plate 31 is vertically disposed on a top surface of the bottom plate 32, the terminal group 1 includes a VBUS power terminal 11, a D-signal terminal 12, a D + signal terminal 13 and a GND ground terminal 14, and each component of the present embodiment is described in detail below with reference to the accompanying drawings.

As shown in fig. 1 to 5, the VBUS power terminal 11 of the terminal group 1 includes a power fixed terminal 112 and a power movable terminal 111, the power movable terminal 111 and the power fixed terminal 112 are arranged in the insulating body 3 at an interval such that the power movable terminal 111 of the VBUS power terminal 11 is uncharged when not connected to a corresponding connector male, the power movable terminal 111 is provided with a first butting portion 1111, a second butting portion 1112, a first elastic portion 1113 and a connecting portion 1114 connected in sequence from head to tail, the power fixed terminal 112 includes a third butting portion 1121, a first retaining portion 1122 and a first leg portion 1123 connected in sequence from head to tail, in a specific implementation, a first mounting position 311 for mounting the VBUS power terminal 11 is provided inside the tongue plate 31 of the insulating body 3, and a first mounting groove 3111 for mounting the connecting portion 1114 of the power movable terminal 111 is provided at a front end of a bottom of the first mounting position 311, meanwhile, a third butt portion 1121 for mounting the power supply fixed terminal 112 and a second mounting groove 3112 for mounting the first retaining portion 1122 are arranged at the rear end of the bottom of the first mounting position 311, during assembly, the VBUS power supply terminal 11 is inserted into the first mounting position 311 from bottom to top, at this time, the power supply fixed terminal 112 of the VBUS power supply terminal 11 is mounted into the second mounting groove 3112, the first retaining hooks 11221 on both sides of the power supply fixed terminal 112 are respectively hooked on the inner wall of the second mounting groove 3112 to realize fixed connection and retaining operation of the power supply fixed terminal 112, and meanwhile, the connecting portion 1114 of the power supply movable terminal 111 of the VBUS power supply terminal 11 is mounted into the first mounting groove 3111, so that the first butt portion 1111, the second butt portion 1112 and the first elastic portion 1113 of the power supply movable terminal 111 can swing back and forth around the connecting portion 1114 inside the insulating body 3.

Preferably, the first retaining hook 11221 is shaped as a tooth inclined downward and outward, so as to improve the connection stability and prevent the power fixing terminal 112 from being pulled out of the insulating housing 3.

During operation, before the corresponding male connector is inserted into the female connector seat, the power supply movable terminal 111 of the VBUS power terminal 11 exposed outside the insulating body 3 is uncharged, and the charged power supply fixed terminal 112 is located behind the power supply movable terminal 111, so that the safety coefficient is greatly improved.

As shown in fig. 2 to 4, the D-signal terminal 12, the D + signal terminal 13 and the GND ground terminal 14 are respectively provided with a fourth butt-joint portion 101, a second elastic portion 102, a second stopping portion 103 and a second solder portion 104 which are sequentially connected from head to tail, each fourth butt-joint portion 101 protrudes forward to protrude from the front of the tongue plate 31 to the outside of the insulating body 3, each second stopping portion 103 is fixedly installed inside the insulating body 3, each second solder portion 104 protrudes outward from the bottom of the bottom plate 32 to the outside of the insulating body 3, in the specific implementation, three second installation positions 312 are provided inside the tongue plate 31 of the insulating body 3, the D-signal terminal 12, the D + signal terminal 13 and the GND ground terminal 14 are sequentially installed inside the three second installation positions 312 from left to right, the first installation position 311 is located at the left side of the three second installation positions 312, preferably, the bottom of each second installation position 312 is provided with a third installation groove 3121, when the D-signal terminal 12, the D + signal terminal 13 and the GND ground terminal 14 are respectively installed inside the corresponding mounting grooves 3121, and the corresponding second installation positions of the D-signal terminal 14 are respectively, and the GND terminal 14 are hooked to the corresponding mounting groove 3121, and the second installation position of the second mounting groove 14.

Preferably, the shapes of the second retaining hooks 1031 of the second retaining portions 103 of the D-signal terminals 12, D + signal terminals 13 and GND ground terminals 14 are all tooth shapes that are inclined downward and outward, so that the connection stability is improved, and the D-signal terminals 12, D + signal terminals 13 and GND ground terminals 14 can be prevented from being pulled out of the insulation body 3.

As shown in fig. 1 and 5, the side of metal casing 2 is equipped with a plurality of shell fragment 21, the free end of a plurality of shell fragment 21 all inwards extends to metal casing 2's inside, the free end of a plurality of shell fragment 21 can compress tightly on the lateral surface of the public head of connector when the public head of connector inserts, can increase the power of inserting and pulling out, improve the stability of connection, better, every shell fragment 21 all is equipped with fluted strengthening rib 211 with the position of being connected of metal casing 2, can further improve the packing force of shell fragment 21, the public head of connector drops because of accident when can avoiding connecting.

As shown in fig. 5, the bottom of the two sides of the metal shell 2 is provided with the sheet pins 22 protruding downward, the two sides of the bottom plate 32 are provided with the grooves 321 for the sheet pins 22 to pass through, the bottom of the metal shell 2 is provided with the plurality of positioning protrusions 23 protruding downward, the edge of the top of the bottom plate 32 is provided with the plurality of positioning concave portions 322 for the positioning protrusions 23 to insert into, the bottom of the two sides of the metal shell 2 is provided with the connecting lugs 24 protruding downward, the two sides of the bottom plate 32 are provided with the connecting concave portions 323, during assembly, the metal shell 2 covers the insulating body 3 from top to bottom, at this time, the bottom of the sheet pins 22 passes through the grooves 321 downward and then extends out to the bottom of the bottom plate 32, the plurality of positioning protrusions 23 are respectively inserted into the corresponding positioning concave portions 322, and finally, each connecting lug 24 is bent and clamped in the corresponding connecting concave portion 323 to realize the fixed connection between the metal shell 2 and the insulating body 3.

To sum up, the utility model has the advantages of simple structure, reasonable in design has switch protect function, adopts interval arrangement's power fixed terminal and power movable terminal for power movable terminal separates from each other with power fixed terminal under the normality, thereby makes VBUS power terminal be in normally opening uncharged state when the normality, has improved factor of safety widely.

The above embodiments are preferred embodiments of the present invention, but the embodiments of the present invention are not limited to the above embodiments, and any other changes, modifications, substitutions, combinations, and simplifications which do not depart from the spirit and principle of the present invention should be equivalent replacement modes, and all are included in the scope of the present invention.

Claims

1. A USB connector with switch protection, comprising a metal shell (2), an insulator (3) and a terminal group (1), wherein the metal shell (2) is mounted outside the insulator (3), the terminal group (1) is mounted inside the insulator (3), the insulator (3) comprises a tongue plate (31) and a bottom plate (32), the bottom plate (32) is horizontally arranged, the tongue plate (31) is vertically arranged on the top surface of the bottom plate (32), and the terminal group (1) comprises a VBUS power supply terminal (11), a D-signal terminal (12), a D + signal terminal (13) and a GND ground terminal (14), characterized in that: the VBUS power terminal (11) comprises a power fixed terminal (112) and a power movable terminal (111), the power movable terminal (111) and the power fixed terminal (112) are arranged in an insulating body (3) at intervals, the power movable terminal (111) comprises a first butt joint part (1111), a second butt joint part (1112), a first elastic part (1113) and a connecting part (1114) which are sequentially connected from head to tail, the connecting part (1114) of the power movable terminal (111) is fixedly installed in the insulating body (3), the first butt joint part (1111), the second butt joint part (1112) and the first elastic part (1113) of the power movable terminal (111) can swing back and forth in the inner part of the insulating body (3), the power fixed terminal (112) comprises a third butt joint part (1121) and a first welding foot part (1121) which are sequentially connected from head to tail, the third butt joint part (1121) of the power fixed terminal (112112) is fixedly installed in the insulating body (3), the first butt joint part (1121) of the power fixed terminal (112) extends from the bottom plate (31) to the outer part (1123) and extends from the front side to the front side of the insulating body (1111) to the outer side of the insulating body (31), the first elastic part (1113) of the power movable terminal (111) can deform when the second butting part (1112) is pressed, so that the first butting part (1111) is driven to move towards the power fixed terminal (112) and is in contact with the third butting part (1121) to establish electrical connection, and the power movable terminal (111) is electrified.

2. The USB connector with switch protection according to claim 1, wherein: the power fixing terminal (112) of the VBUS power terminal (11) is further provided with a first backstop portion (1122), the first backstop portion (1122) is located between the third butt joint portion (1121) and the first welding foot portion (1123), and the first backstop portion (1122) is fixedly installed in the insulating body (3).

3. The USB connector with switch protection according to claim 2, wherein: two sides of the first retaining part (1122) are provided with first retaining hooks (11221), and the first retaining hooks (11221) are in a shape of teeth inclining downwards and outwards.

4. The USB connector with switch protection according to claim 1, wherein: the tongue plate (31) is internally provided with a first mounting position (311) for mounting a VBUS power terminal (11), the front end of the bottom of the first mounting position (311) is provided with a first mounting groove (3111) for mounting a connecting part (1114) of a power movable terminal (111), and the rear end of the first mounting position (311) is provided with a second mounting groove (3112) for mounting a power fixed terminal (112).

5. The USB connector with switch protection according to claim 1, wherein: the D-signal terminal (12), the D + signal terminal (13) and the GND grounding terminal (14) respectively comprise a fourth butt joint part (101), a second elastic part (102), a second stopping part (103) and a second welding foot part (104) which are sequentially connected from head to tail, each fourth butt joint part (101) is forwards protruded to the outside of the insulating body (3) from the front of the tongue plate (31), each second stopping part (103) is fixedly installed in the insulating body (3), and each second welding foot part (104) is outwards protruded to the outside of the insulating body (3) from the bottom of the bottom plate (32).

6. The USB connector with switch protection of claim 5, wherein: the tongue plate (31) is internally provided with three second mounting positions (312), the D-signal terminal (12), the D + signal terminal (13) and the GND grounding terminal (14) are respectively mounted in the corresponding second mounting positions (312), the rear ends of the bottoms of the three second mounting positions (312) are respectively provided with a third mounting groove (3121), and the second stopping parts (103) of the D-signal terminal (12), the D + signal terminal (13) and the GND grounding terminal (14) are respectively mounted in the corresponding third mounting grooves (3121).

7. The USB connector with switch protection according to claim 5, wherein: both sides of every second stopping portion (103) all are equipped with second stopping hook (1031), the shape of second stopping hook (1031) sets up the cusp that inclines outward downwards.

8. The USB connector with switch protection according to claim 1, wherein: the front surface, the back surface and the two side surfaces of the metal shell (2) are respectively provided with an elastic sheet (21), and the free ends of the elastic sheets (21) extend into the metal shell (2).

9. The USB connector with switch protection according to claim 8, wherein: the connection parts of the elastic sheets (21) positioned on the front and the back of the metal shell (2) and the metal shell (2) are provided with groove-type reinforcing ribs (211).

10. The USB connector with switch protection according to claim 1, wherein: the bottom of the both sides of metal casing (2) all is equipped with slice and participates in (22) to the downward protrusion, recess (321) that confession slice participated in (22) and passed are all seted up to the both sides of bottom plate (32), the bottom of metal casing (2) is equipped with a plurality of locating convex block (23) to the downward protrusion, the border position at the top of bottom plate (32) has been seted up a plurality of and has been supplied locating convex block (23) male location concave position (322), the bottom of the both sides of metal casing (2) is all protruding to be equipped with and is connected lug (24), the both sides of bottom plate (32) all are equipped with and connect concave position (323), and every is connected lug (24) and is equallyd divide and do not bend the chucking in connection concave position (323) that correspond separately to realize the fixed connection of metal casing (2) and insulator (3).