TWM454654U - Contracted electrical connector - Google Patents

Description

Shortened electrical connector

The present invention relates to the field of connector products, and particularly relates to a shortened electrical connector that reduces the volume of a product by shortening the outer casing while maintaining excellent insertion and removal effects.

USB is the abbreviation of English Universal Serial BUS, and its Chinese abbreviation is “pass-through line”. It is an external summary line standard for standardizing the connection and communication between computers and external devices. It is used in the PC field. Interface technology. Because the USB interface has the plug-and-play and hot-swap functions of the support device, the connection is flexible, independent power supply, etc., and can be connected to a mouse, a keyboard, a printer, a scanner, a camera, a flash memory disk, an MP3 player, Mobile phones, digital cameras, mobile hard drives, external optical floppy drives, USB network cards, etc., almost all external devices are equipped with a USB interface, which is widely used.

USB is the abbreviation of English Universal Serial BUS, and its Chinese abbreviation is “pass-through line”. It is an external summary line standard for standardizing the connection and communication between computers and external devices. It is used in the PC field. Interface technology. Because the USB interface has the plug-and-play and hot-swap functions of the support device, the connection is flexible, independent power supply, etc., and can be connected to a mouse, a keyboard, a printer, a scanner, a camera, a flash memory disk, an MP3 player, Mobile phones, digital cameras, mobile hard drives, external optical floppy drives, USB network cards, etc., almost all external devices are equipped with a USB interface, which is widely used.

In order to achieve a higher transmission rate, the current USB standard is USB 3.0, of course, in order to be compatible with USB2.0, it has two sets of transmission terminals at the same time. Generally, a conventional USB 3.0 electrical connector includes: an insulator comprising: a carrier and a tongue formed on the front end of the carrier; a terminal set including a plurality of USB 3.0 terminals and a USB 2.0 terminal. The USB 3.0 terminal and the USB 2.0 terminal each include: a main body portion, a contact portion formed at a front end of the main body portion, a bent portion formed at a rear end of the main body portion, and a lead portion formed at a rear end of the bent portion; and an outer casing Covered on the insulator.

The shell of the outer casing of the existing USB electrical connector protrudes from the front end surface of the tongue plate, that is, the front end surface of the tongue plate is embedded in the outer casing, and the outer casing not only protects the internal components thereof, but another function is to insert the USB electrical connector. The mating end (plug) forms a clamp, that is, the mating end (plug) has sufficient insertion force when inserted or pulled out to ensure that the USB plug does not accidentally fall off. It is for these reasons that current technicians have never thought of improving the outer casing and shortening the length of the outer casing during the miniaturization of the USB electrical connector. Because the shortening of the outer casing will inevitably result in insufficient insertion and extraction force of the electrical connector, when the mating end (plug) is inserted, it is easy to cause the locking force to be insufficient to cause looseness.

In view of this, the inventors propose the following technical solutions.

The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and to provide a shortened type electrical connector which reduces the volume of the product by shortening the outer casing while maintaining excellent insertion and removal effects.

In order to solve the above technical problem, the present invention adopts the following technical solution: the shortened electrical connector comprises: an insulator comprising a carrier and a tongue formed on the front end of the carrier, the insulator forming a carrier The rear end surface is opened and extends to the caulking cavity in the tongue plate; the insulating rear seat comprises: a carrier plate embedded in the clamping cavity and a fixing seat formed at the end of the carrier plate; a terminal group, the The terminal set includes a plurality of first terminals and second terminals fixed on the carrier plate and exposed on the tongue plate; a casing covering the periphery of the insulator, wherein the front end of the tongue protrudes from the outer casing of the casing An interference terminal and an elastic positioning member are fixedly mounted between the insulator and the insulating rear seat. When the mating end is inserted into the electrical connector, an expansion function is formed on the mating end through the interference terminal and the elastic positioning member to improve the mating end. Insertion force.

After adopting the above technical solution, the present invention has the following beneficial effects compared with the prior art:

1. The outer casing of the present invention is short, so that the front end of the tongue protrudes out of the outer casing of the outer casing, which can effectively shorten the volume of the entire electrical connector and reduce the space required for assembling the electrical connector and the electronic device. Meet the needs of modern miniaturization.

2. The invention is characterized in that a plurality of interference terminals and an elastic positioning member are fixedly mounted between the insulator and the insulating rear seat, wherein the contact portion of the interference terminal is exposed at the bottom of the insulator, and the contact portion of the elastic positioning member is exposed on both sides of the insulator. Such a structure can effectively solve the problem that the insertion and extraction force is insufficient due to the shortness of the outer casing and the inability to engage with the mating end (plug), so that the creation has excellent insertion and removal and engagement effects.

The present invention will be further described below in conjunction with specific embodiments and drawings.

Referring to FIGS. 1 to 3, a shortened type electrical connector includes: an insulator 1, an insulating rear seat 2 mated with the insulator 1, and a terminal set mounted in the insulating rear seat 2 and exposed on the insulator 1. 3 and a casing 4 covering the periphery of the insulator 1, wherein the insulator 1 forms a plugging space with the casing 4, and the front end of the insulator 1 protrudes outside the casing opening 40 of the casing 4.

A plurality of interference terminals 5 and an elastic positioning member 6 are fixedly mounted between the insulator 1 and the insulating rear seat 2, wherein the contact portion 52 of the interference terminal 5 is exposed at the bottom of the insulator 1, and the contact portion 621 of the elastic positioning member 6 The contact portion 52 of the interference terminal 5 and the contact portion 621 of the elastic positioning member 6 are exposed on both sides of the insulator 1 and are exposed in the insertion and extraction space formed by the insulator 1 and the outer casing 4.

As shown in FIG. 4, the interference terminal 5 includes a main body 51 and a contact portion 52 formed on the front end of the main body 51. The upper end of the main body 51 is formed with a barb 511, and the bottom of the insulating rear seat 2 is provided with the barb. 511 mated card position 203.

The elastic positioning member 6 includes a body 61 and a resilient contact arm 62 extending forwardly from opposite ends of the body 61. The body 61 is provided with a positioning slot 611 opposite to the other side of the elastic contact arm 62. The front end of the arm 62 is formed with the contact portion 621 that protrudes outward.

The insulator 1 includes a carrier 11 and a tongue 12 formed on the front end of the carrier 11. The insulator 1 is formed with a caulking cavity 10 which is opened by the rear end surface of the carrier 11 and extends into the tongue plate 12.

As shown in FIGS. 5 and 6, the upper end surface and the side of the carrier 11 of the insulator 1 are described. Each of the faces is provided with a card slot 111. A first clamping hole 121 for assembling the elastic contact arm 62 of the elastic positioning member 6 is disposed on each side of the tongue plate 12, and the first clamping hole 121 is connected to the clamping cavity 10 . The terminal groove 122 for mounting the interference terminal 5 is disposed at the end of the tongue plate 12, and the interference terminal 5 is engaged with the terminal groove 122 to be in contact with the carrier plate 21.

The terminal set 3 includes a plurality of first terminals 31 and second terminals 32 fixed to the carrier plate 21 and exposed on the tongue plate 12.

The first terminal 31 is a USB 2.0 terminal, and includes a main body portion, a contact portion 311 formed at a front end of the main body portion, a bent portion formed at a rear end of the main body portion, and a lead portion formed at a rear end of the bent portion. 312.

The second terminal 32 is a USB 3.0 terminal, and includes: a main body portion, a contact portion 321 formed at a front end of the main body portion, a bent portion formed at a rear end of the main body portion, and a lead portion formed at a rear end of the bent portion 322.

The tongue plate 12 is provided with a first terminal hole 123 and a portion penetrating through the clamping cavity 10 for exposing the contact portion 311 of the first terminal 31 and the contact portion 321 of the second terminal 32, respectively. The two terminal holes 124 are, wherein the first terminal hole 123 is located at the front end of the tongue plate 12, and the second terminal hole 124 is located at the middle of the tongue plate 12. After the insulating rear seat 2 is assembled with the insulator 1, the contact portion 311 of the first terminal 31 is exposed in the first terminal hole 123 on the tongue plate 12, and the contact portion 321 of the second terminal 32 passes through. The second terminal hole 124 in the tongue plate 12 is exposed on the tongue plate 12.

As shown in FIG. 7 , the insulated rear seat 2 includes a carrier plate 21 embedded in the clamping cavity 10 and a fixing seat 22 formed at the end of the carrier plate 21 . Said absolutely The edge rear seat 2 is provided with a limiting groove 201 for assembling the elastic positioning member 6 and a protruding post 202 located in the limiting groove 201 at a position where the supporting plate 21 and the fixing seat 22 are in contact with each other. When the elastic positioning member 6 is installed in the insulating rear seat 2, the body 61 of the elastic positioning member 6 falls into the limiting slot 201, wherein the positioning groove 611 on the body 61 and the convexity in the limiting slot 201 The column 202 is phase-locked, and the elastic contact arms 62 formed on the body 61 are exposed on both sides of the carrier plate 21.

The outer casing 4 is wrapped around the outer periphery of the insulator 1, wherein the front end of the tongue plate 12 protrudes from the outer casing 40 of the outer casing 4; the outer casing 40 is shorter than the standard outer casing for the purpose of effectively interacting with the electronic device The housing is embedded to achieve lighter and thinner electronic devices. A card 41 mated with the card slot 111 on the insulator 1 is formed on the outer casing 4. The outer surface of the outer casing 4 is provided with a plurality of force arms 42, and the force receiving portion of the force arms 42 is exposed in the outer casing 4. The outer casing 4 is also formed with a plurality of pins 43 for assembly.

The first terminal 31 and the second terminal 32 of the terminal group 3 are integrally fixed to the insulated rear seat 2, wherein the contact portion 311 and the second terminal 32 of the first terminal 31 are integrally assembled. The contact portions 321 are respectively exposed on the carrier board 21 in the insulating rear seat 2, and the lead portion 312 of the first terminal 31 and the lead portion 322 of the second terminal 32 are exposed in the fixing seat of the insulating rear seat 2 The back end of 22. The contact portion 311 of the first terminal 31 is in close contact with the front end of the carrier plate 21, and the contact portion 321 of the second terminal 32 is exposed in the middle of the carrier plate 21 and is swelled upward.

The elastic positioning member 6 is mounted in the insulating rear seat 2, wherein the body 61 of the elastic positioning member 6 falls into the limiting slot 201, wherein the body 61 is fixed The position groove 611 is engaged with the protrusion 202 in the limiting groove 201, and the elastic contact arms 62 formed on the body 61 are exposed on both sides of the carrier plate 21.

The interference terminal 5 is embedded in the terminal groove 122 at the end of the tongue 12 in the insulator 1, and then the insulating rear seat 2 on which the terminal group 3 and the elastic positioning member 6 are mounted is inserted and mounted in the insulator 1. Specifically, the carrier plate 21 of the insulating rear seat 2 is embedded in the clamping cavity 10 of the insulator 1 , wherein the interference terminal 5 is in contact with the carrier plate 21 , and the barb 511 of the interference terminal 5 is embedded in the insulating rear seat 2 In the bottom card position 203, the interference terminal 5 is fixedly mounted between the insulator 1 and the insulating rear seat 2, and the contact portion 52 of the interference terminal 5 is exposed at the bottom of the insulator 1. The elastic contact arms 62 of the elastic positioning member 6 are embedded in the first embedding holes 121 on both sides of the tongue plate 12 of the insulator 1 , and the contact portions 621 on the elastic contact arms 62 are exposed on both sides of the tongue plate 12 . The contact portion 311 of the first terminal 31 is exposed in the first terminal hole 123 on the tongue plate 12, and the contact portion 321 of the second terminal 32 is exposed through the second terminal hole 124 on the tongue plate 12 to the tongue. On the board 12.

The outer casing 4 is wrapped around the insulator 1 , wherein the card 41 formed on the outer casing 4 is engaged in the slot 111 of the insulator 1 , so that the outer casing 4 is fixed to the outer periphery of the insulator 1 , and the insulator 1 The insertion and removal space is formed with the outer casing 4, and the front end of the insulator 1 protrudes outside the casing opening 40 of the outer casing 4.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the technical scope of the present invention. Therefore, any minor modifications, equivalent changes, and modifications made to the above embodiments in accordance with the technical essence of the present invention are still It belongs to the scope of this creative technical solution.

1‧‧‧Insulator

10‧‧‧Clamping cavity

11‧‧‧Hosting

111‧‧‧ card slot

12‧‧ ‧ tongue

121‧‧‧First Clamping Hole

122‧‧‧Terminal slot

123‧‧‧First terminal hole

124‧‧‧Second terminal hole

2‧‧‧Insulated rear seat

201‧‧‧Limited slot

202‧‧‧Bump

203‧‧‧ card position

21‧‧‧Bearing board

22‧‧‧ Fixed seat

3‧‧‧Terminal group

31‧‧‧First terminal

311‧‧‧Contacts

312‧‧‧Lead Department

32‧‧‧second terminal

321‧‧‧Contacts

322‧‧‧Lead Department

4‧‧‧ Shell

40‧‧‧ Shell mouth

41‧‧‧ cards

42‧‧‧ force arm

43‧‧‧ pins

5‧‧‧Interference terminal

51‧‧‧ Subject

511‧‧‧ barbed

52‧‧‧Contacts

6‧‧‧Flexible positioning parts

61‧‧‧Ontology

611‧‧‧ positioning slot

62‧‧‧Flexible arm

621‧‧‧Contacts

1 is a perspective view of the creation; FIG. 2 is a front view of the creation; FIG. 3 is an exploded perspective view of the creation; FIG. 4 is a perspective view of the interference terminal in the present creation; FIG. 5 is a perspective view of the insulator in the present creation; It is a schematic view of the assembly of the interference terminal, the insulator, the insulating rear seat, the elastic positioning member and the terminal group in the present invention; and FIG. 7 is a perspective view of the insulated rear seat in the present creation;

1‧‧‧Insulator

11‧‧‧Hosting

111‧‧‧ card slot

12‧‧ ‧ tongue

121‧‧‧First Clamping Hole

123‧‧‧First terminal hole

124‧‧‧Second terminal hole

2‧‧‧Insulated rear seat

21‧‧‧Bearing board

22‧‧‧ Fixed seat

3‧‧‧Terminal group

31‧‧‧First terminal

311‧‧‧Contacts

312‧‧‧Lead Department

32‧‧‧second terminal

321‧‧‧Contacts

322‧‧‧Lead Department

4‧‧‧ Shell

40‧‧‧ Shell mouth

41‧‧‧ cards

42‧‧‧ force arm

43‧‧‧ pins

5‧‧‧Interference terminal

51‧‧‧ Subject

511‧‧‧ barbed

52‧‧‧Contacts

6‧‧‧Flexible positioning parts

61‧‧‧Ontology

611‧‧‧ positioning slot

62‧‧‧Flexible arm

621‧‧‧Contacts

Claims (10)

A shortened electrical connector, comprising: an insulator comprising a carrier and a tongue formed on a front end of the carrier, the insulator forming a clamping portion extending from the rear end surface of the carrier and extending into the tongue plate a cavity; an insulating rear seat, comprising: a carrier plate embedded in the clamping cavity and a fixing seat formed at an end of the carrier plate; a terminal group, the terminal group comprising a plurality of fixed on the carrier plate a first terminal and a second terminal exposed on the tongue plate; a casing covering the periphery of the insulator, wherein a front end of the tongue protrudes from a casing opening of the casing; and between the insulator and the insulated rear seat The interference terminal and the elastic positioning member are fixedly mounted. When the mating end is inserted into the electrical connector, the mating end and the elastic positioning member form an expansion function on the mating end to improve the insertion and extraction force of the mating end. The shortening type electrical connector of claim 1, wherein the interference terminal has a contact portion exposed on the bottom of the insulator, and the elastic positioning member has two contact portions respectively exposed on both sides of the insulator. The shortening type electrical connector of claim 2, wherein the elastic positioning member comprises: a body and an elastic contact arm extending forwardly along both ends of the body, the body being disposed with respect to the other side of the elastic contact arm a positioning groove, the front end of the elastic contact arm is formed with an outwardly protruding contact portion. The shortened electrical connector of claim 3, wherein the tongue plate has two The side is respectively provided with a first embedding hole for assembling the elastic contact arm of the elastic positioning member, and the first embedding hole is in communication with the caulking cavity. The shortening type electrical connector according to any one of claims 2 to 4, wherein the insulating rear seat is provided with a limiting slot for the elastic positioning member to be assembled at the interface between the carrier plate and the fixing base A stud in the limit slot. The shortening type electrical connector of claim 2, wherein the interference terminal comprises a body and a contact portion formed at a front end of the body, the upper end of the body is formed with a barb, and the bottom of the insulating rear seat is provided with the barb Match the card position. The shortening type electrical connector of claim 2, wherein the tongue end is provided with a terminal slot for assembling the interference terminal, so that the interference terminal is engaged with the terminal slot and is in contact with the carrier plate . The shortening type electrical connector of claim 1, wherein the first terminal and the second terminal are respectively formed with a contact portion, and the tongue plate is disposed through the clamping cavity and respectively used for A first terminal hole and a second terminal hole of the contact portion of the first terminal and the contact portion of the second terminal are exposed. The shortened electrical connector of claim 8, wherein the first terminal is a USB 2.0 terminal; and the second terminal is a USB 3.0 terminal. The shortening type electrical connector of claim 1, wherein the upper end surface and the side surface of the carrier of the insulator are provided with a card slot, and the card is formed with a card matched with the card slot.