TWI505583B - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector having an insulating tongue.

In the late 1990s, the USB standard became the preferred connection interface in the computer industry and became popular in almost all computers manufactured today. In order to take advantage of the variety of peripherals and electronic devices built around the USB structure, notebooks, desktops and other computers are equipped with a USB interface. Therefore, the demand for the corresponding electrical connector becomes very large. For the related art related to the present invention, the socket electrical connector and the plug electrical connector disclosed in the Chinese Patent Publication No. 1929214A, the socket electrical connector and the socket electrical connector are The plug electrical connector conforms to the USB 2.0 standard, and the socket electrical connector comprises a socket body, a socket terminal received in the socket body, and a shielding shell covering the socket body, the shielding shell is provided with a plug hole, and the socket body has an extension plug The tongue plate in the hole, the socket terminal has an arc-shaped contact portion arranged on the lower surface of the tongue plate.

The plug electrical connector comprises a plug body, a plug terminal received in the plug body, and a metal shell covering the plug body, the plug body is provided with a butt plate protruding forward, and the plug terminal has a flat interface arranged on the surface of the mating plate The metal casing has a butt frame covering the butt plate. The docking frame comprises a top wall, a bottom wall and two side walls connecting the top wall and the bottom wall, and a tongue plate for receiving the socket electrical connector is formed between the top wall and the butting plate. Receiving hole, butt joint of the plug terminal The bottom wall and the two side walls are respectively attached to the tongue plate. When the plug electrical connector is docked with the socket electrical connector, the mating portion of the plug electrical connector plug terminal faces upward, the mating connector of the plug electrical connector is aligned with the socket of the receptacle electrical connector, or the plug is electrically connected. The receiving hole of the device and the tongue plate of the socket electrical connector are butted forward and backward, so that the docking frame of the plug electrical connector can be accurately inserted into the plug hole of the socket electrical connector, so that the plug electrical connector and the socket electrical connector are accurately docked, if If the user improperly operates, the mating portion of the plug electrical connector plug terminal faces downward, the mating connector of the plug electrical connector is aligned with the tongue of the receptacle electrical connector, or the receiving hole of the plug electrical connector and the electrical connector of the receptacle If the mating holes of the plug-in holes are not connected to the plug-in holes of the electrical connectors of the socket, the plug-in electrical connectors and the electrical connectors of the sockets must not be connected to each other.

In view of this, it is necessary to provide a new electrical connector to overcome the above problems.

It is an object of the present invention to provide an electrical connector that is convenient for docking with a docking connector.

In order to achieve the above object, the present invention relates to an electrical connector, which is provided with a mating hole for receiving a mating connector, comprising: an insulating tongue, comprising first and second tongues capable of moving back and forth; and a conductive terminal. The utility model is disposed on the tongue plate, the conductive terminal comprises a first and a second terminal group, the first terminal group has a contact portion arranged on the first tongue plate, and the second terminal group has a second tongue group arranged on the second tongue plate The electrical connector further includes a driving mechanism for driving the first and second tongue plates to move in opposite directions in the front-rear direction, and the contact portions of one of the first and second terminal groups are exposed to the docking The holes are for contacting the mating connector, and the contacts of the other terminal group are withdrawn from the mating holes.

The tongue plate of the electrical connector of the present invention includes first and second tongue plates that are movable back and forth, the conductive terminals including first and second terminal sets, and the first terminal group has a first tongue plate disposed on the first tongue plate a contact portion, the second terminal group has a contact portion arranged on the second tongue plate, the electrical connector further comprising a driving mechanism for driving the first and second tongue plates to move in the front-rear direction, the first and the second The contact portion of one of the two terminal groups is exposed to the mating hole for contact with the mating connector, and the contact portion of the other terminal group is withdrawn from the mating hole, and the mating connector that is opposite to the electrical connector of the present invention may be first The contact portions of the terminal group or the second terminal group are in contact, which ensures that the mating connector can be electrically connected with the conductive terminal of the electrical connector, so that the electrical connector and the docking connector form a signal transmission, and there is no need to worry during the docking process. The user does not operate properly, and the electrical connector is connected to the docking connector.

Referring to the first to fifth figures, the electrical connector 100 of the present invention is a USB plug connector including an insulative housing 1, a driving mechanism 2, a built-in circuit board 3, an insulating tongue 4, a conductive terminal 5, and a metal. Housing 6 and cable 7. The driving mechanism 2 is fixed to the metal casing 6, the conductive terminal 5 is provided on the tongue plate 4, and the front end of the cable 7 is welded to the built-in circuit board 3.

The insulative housing 1 is overmolded on the built-in circuit board 3 to fix the built-in circuit board 3.

The driving mechanism 2 includes a pair of left and right circular gears 21 and a positioning shaft 22 penetrating the pair of gears 21. The gear 21 is rotatable about the positioning shaft 22, and the periphery of the gear 21 is provided with gear teeth 210. The positioning shaft 22 The left and right ends have positioning portions 220 projecting from the gears 21, and the positioning portions 220 are fixed to the metal casing 6.

The built-in circuit board 3 has a front end portion 31, a rear end portion 32, and a connection front end portion 31 and a rear end In the intermediate portion 33 of the portion 32, the upper and lower surfaces of the front end portion 31 are respectively provided with a row of metal pieces 311, and the rear end portion 32 is provided with a metal connecting piece (not shown), and the connecting piece is welded with the cable 7 in the middle. The portion 33 is embedded in the insulative housing 1 , the front end portion 31 protrudes forwardly from the insulative housing 1 , and the rear end portion 32 projects rearwardly from the insulative housing 1 . The built-in circuit board 3 is located behind the positioning shaft 22 of the driving mechanism 2 and two Between the gears 21. In other embodiments, the built-in circuit board 3 is assembled on the insulative housing 1.

The tongue plate 4 includes a first tongue plate 41 located above the built-in circuit board 3 and a second tongue plate 42 located below the built-in circuit board 3. Each of the tongue plates 41, 42 is provided with a plurality of receiving grooves 411, 421 extending through the upper and lower sides. . A first guiding groove 412 and a first flange 413 surrounding the first guiding groove 412 are respectively recessed on the left and right sides of the lower surface of the first tongue plate 41, and the left and right sides of the lower surface of the second tongue plate 42 A second guiding groove 422 and a second flange 423 surrounding the second guiding groove 422 are respectively recessed. Each of the first guiding grooves 412 and the second guiding groove 422 are disposed opposite to each other. The first and second guiding grooves 412 and 422 collectively receive the gear 21 of the driving mechanism 2, so that the driving mechanism 2 is clamped in the up and down direction. Between the first and second tongue plates 41, 42 , the inner bottom walls of each of the guiding grooves 412, 422 are respectively provided with a plurality of saw teeth 410, 420 meshing with the gear teeth 210 of the gear 21, the saw teeth 410, 420 along Arranged in the front and rear direction.

The conductive terminals 5 are disposed in two groups, and include a first terminal group 51 embedded on the first tongue plate 41 and a second terminal group 52 on the second tongue plate 42. Each of the conductive terminals 5 includes a horizontal contact portion 55 and The abutting portion 56 of the first terminal group 51 is disposed on the lower surface of the first tongue plate 41 and located at the two first guiding grooves 412. The abutting portion 56 is partially received in the receiving groove 411 and can be vertically oscillated. The abutting portion 56 is in one-to-one correspondence with the metal piece 311 on the upper surface of the built-in circuit board 3, and is in contact with each other, so that the first terminal group 51 and the wire are connected to each other. Electrical connection is formed between the cables 7, and the second terminal group 55 is connected to the second terminal group 52. The contact portion 55 is disposed on the upper surface of the second tongue plate 41 and is located between the two first guiding grooves 412. The abutting portion 56 is partially received in the receiving groove 421 and can be elastically oscillated up and down, the abutting portion 56 and the built-in circuit. The metal sheets 311 on the lower surface of the board 3 are in one-to-one correspondence and are in contact with each other to form an electrical connection between the second terminal group 52 and the cable 7. The front end portion 31 of the built-in circuit board 3 is received in the accommodating space formed by the first and second tongue plates 41 and 42. The accommodating space is located in the first and second guiding grooves of the first and second guiding grooves 413 and 423. Between 412 and 422.

The metal casing 6 includes a main body portion 61 and a mating frame 62 extending forward from the main body portion 61 to be inserted into a mating connector (not shown). The main body portion 61 is wrapped around the outer side of the insulative housing 1 and the cable 7 extends rearward. Main body portion 61. The docking frame 62 includes a top wall 621, a bottom wall 622, and two side walls 623 connecting the top wall 621 and the bottom wall 622. The top wall 621 and the bottom wall 622 are connected to the two side walls 623 to form a pair of connecting holes 620 for receiving the docking connection. Device. The top wall 621 and the two side walls 623 are attached to the first tongue plate 41. The bottom wall 622 and the two side walls 623 abut against the second tongue plate 42. The two side walls 623 respectively open through holes for fixing the positioning portion 220 of the driving mechanism 2. 6230, when the gear 21 is rotated, the positioning shaft 22 is stationary. The butt hole 620 is divided into an upper butt hole 6201 for receiving the first tongue plate 41 and a lower butt hole 6202 of the second tongue plate 42. The upper butt hole 6201 is formed on the top wall 621, the two side walls 623 and the second tongue plate 42. Between the three, the lower butt hole 6202 is formed between the bottom wall 622, the two side walls 623, and the first tongue plate 41.

The electrical connector 100 of the present invention has a first state and a second state before the docking connector is docked. When the electrical connector 100 is in the first state, the first tongue 41 is located behind the upper docking hole 6201, and the second tongue 42 is located below. In the mating hole 6202, the contact portion 55 of the second terminal group 52 is upwardly exposed to the upper mating hole 6201, and the mating connector can be inserted into the upper mating hole 6201 to contact the second terminal group 52; when the electrical connector 100 is in the second state, Two tongues 42 are located under the docking In the rear of the hole 6202, the first tongue 41 is located in the upper mating hole 6201, the contact portion 55 of the first terminal group 51 is downwardly exposed to the lower mating hole 6202, and the mating connector can be inserted into the lower mating hole 6202 and the first terminal group 51. contact.

If the electrical connector 100 of the present invention is in the first state, it is opposite to the docking connector, and the docking connector is aligned with the upper docking hole 6201. At this time, the docking connector can be smoothly inserted into the upper docking hole 6201; if the docking connector is It is offset from the upper butt hole 6201, and is aligned with the lower butt hole 6202. When the docking connector is inserted into the lower butt hole 6202, the second tongue 42 is pushed backward to the rear, and the sawtooth 420 and the gear 21 on the second tongue 42 are moved backward. The upper teeth 210 are engaged, the driving gear 21 rotates around the positioning shaft 22, and the teeth 210 mesh with the serrations 410 on the first tongue 41, driving the first tongue 41 to move forward and gradually enter the upper docking hole 6201. Finally, The second tongue 42 exits the lower butt hole 6202, and the contact portion 55 of the first terminal group 51 is exposed to the lower butt hole 6202. The abutting portion 56 is in elastic contact with the metal piece 311 on the built-in circuit board 3, and the mating connector It is fully inserted into the lower docking hole 6202 to be in contact with the contact portion 55 of the first terminal group 51, so that signal transmission is formed between the electrical connector 100 and the docking connector.

If the electrical connector 100 of the present invention is in the second state, it is opposite to the docking connector, and the docking connector is aligned with the lower docking hole 6202. At this time, the docking connector can be smoothly inserted into the lower docking hole 6202; if the docking connector is It is offset from the lower butt hole 6202, and is aligned with the upper butt hole 6201. When the mating connector is inserted into the upper butt hole 6201, the first tongue 41 is pushed backwards, and the sawtooth 410 and the gear 21 on the first tongue 41 are moved backward. The upper teeth 210 mesh, the drive gear 21 rotates around the positioning shaft 22, and the teeth 210 mesh with the serrations 420 on the second tongue 42 to drive the second tongue 42 forward to gradually enter the lower docking hole 6202. Finally, The first tongue 41 is retracted from the upper mating hole 6201, and the contact portion 55 of the second terminal group 52 is exposed to the upper mating hole 6202. The abutting portion 56 is elastically contacted with the metal piece 311 on the built-in circuit board 3, and is butted. The connector is fully inserted into the upper mating hole 6201 to be in contact with the contact portion 55 of the second terminal group 52, so that signal transmission is formed between the electrical connector 100 and the mating connector.

Therefore, the mating connector can be inserted into one of the upper butt hole 6201 and the lower butt hole 6202 of the electrical connector 100 of the present invention, and is in contact with the contact portion 55 of the first terminal group 51 or the contact portion 55 of the second terminal group 52. The contact ensures that the mating connector is electrically connected to the conductive terminal 5 of the electrical connector 100, so that a signal transmission is formed between the docking connector and the electrical connector 100, and the electrical connector 100 can still be completed when the user operates improperly. Smooth connection with the docking connector, in the docking process, there is no need to worry about the user improper operation when the electrical connector 100 is docked, and the electrical connector 100 is convenient to interface with the docking connector.

It is particularly noted that those of ordinary skill in the art, in the present invention Equivalent variations made to the invention in the teachings of the invention are intended to be included within the scope of the invention.

100‧‧‧Electrical connector

1‧‧‧Insulating body

21‧‧‧ drive mechanism

210‧‧‧ teeth

220‧‧‧ Positioning Department

22‧‧‧ Positioning axis

3‧‧‧ Built-in board

31‧‧‧ front end

311‧‧‧metal piece

32‧‧‧ Back end

33‧‧‧Intermediate

4‧‧ ‧ tongue

41‧‧‧First tongue

411, 421‧‧‧ housing trough

410, 420‧‧ ‧ sawtooth

412‧‧‧First guiding slot

413‧‧‧First flange

42‧‧‧second tongue

422‧‧‧Second guiding slot

423‧‧‧second flange

5‧‧‧Electrical terminals

51‧‧‧First terminal group

52‧‧‧Second terminal group

55‧‧‧Contacts

56‧‧‧Apartment

6‧‧‧Metal housing

61‧‧‧ Main body

62‧‧‧ docking box

621‧‧‧ top wall

622‧‧‧ bottom wall

623‧‧‧ side wall

6230‧‧‧through hole

620‧‧‧ docking holes

6201‧‧‧Upper butt hole

6202‧‧‧Docking hole

7‧‧‧ Cable

The first figure is an assembled view of an electrical connector according to an embodiment of the present invention.

The second figure is a perspective assembled view of the electrical connector shown in the first figure after removing the metal casing.

The third figure is a three-dimensional combination of the other angles of the second figure.

The fourth figure is an exploded perspective view of the electrical connector of the present invention.

Figure 5 is a perspective exploded view of another angle of the electrical connector of the present invention.

1‧‧‧Insulating body

2‧‧‧Drive mechanism

4‧‧ ‧ tongue

7‧‧‧ Cable

41‧‧‧First tongue

42‧‧‧second tongue

51‧‧‧First terminal group

52‧‧‧Second terminal group

411‧‧‧ receiving trough

420‧‧‧Sawtooth

422‧‧‧Second guiding slot

423‧‧‧second flange

Claims (10)

An electrical connector is provided with a mating hole for receiving a mating connector, comprising: an insulating tongue plate comprising first and second tongue plates capable of moving back and forth; and a conductive terminal disposed on the tongue plate and electrically conductive The terminal includes first and second terminal groups, the first terminal group has a contact portion arranged on the first tongue plate, and the second terminal group has a contact portion arranged on the second tongue plate; wherein The electrical connector further includes a driving mechanism for driving the first and second tongue plates to move in opposite directions in the front-rear direction, and the contact portions of one of the first and second terminal groups are exposed to the mating holes for contacting the mating connector The contact portion of the other terminal group exits the docking hole. The electrical connector of claim 1, wherein the driving mechanism comprises a gear and a positioning shaft, and the gear is pivotally connected to the positioning shaft to be rotatable about the positioning axis. The electrical connector of claim 2, wherein the first tongue is provided with a first guiding groove, and the second tongue is provided with a second guiding groove vertically aligned with the first guiding groove. The first and second guiding grooves collectively receive the gears, and the inner bottom walls of the first and second guiding grooves are provided with serrations that mesh with the gears. The electrical connector of claim 2, wherein the circumference of the gear is provided with gear teeth, and the first and second tongues are provided with a plurality of serrations that mesh with the teeth, and the serrations are arranged in the front-rear direction. . The electrical connector of claim 2, wherein the positioning shaft has a positioning portion that protrudes outwardly from the gear, the electrical connector further comprising a metal housing covering the first and second tongues The metal housing has a through hole for fixing the positioning portion. The electrical connector of claim 5, wherein the metal housing has a top wall, a bottom wall and two side walls, and the top wall, the bottom wall and the two side walls are circumferentially formed to form the mating hole, and the butt hole is divided into The upper and lower butt holes are formed between the top wall, the two side walls and the second tongue plate, and the lower butt holes are formed between the bottom wall, the two side walls and the first tongue plate, the driving mechanism The first tongue can be driven into the upper butt hole, the second tongue is taken out of the lower butt hole, or the first tongue is driven out of the upper butt hole, and the second tongue is inserted into the lower butt hole, so that the docking connector can be inserted into the upper butt hole or Lower butt hole. The electrical connector of claim 1, wherein the electrical connector further comprises a built-in circuit board between the first and second tongue plates, the surface of the built-in circuit board being provided with the first and second The metal piece contacting or disconnecting the terminal group, the first terminal group is disposed on the first tongue plate, and the second terminal group is disposed on the second tongue plate. The electrical connector of claim 7, wherein the first and second terminal sets comprise an abutting portion extending rearward from the contact portion, the abutting portion being movable back and forth to contact or disconnect with the metal piece, The first and second tongue plates are provided with a receiving groove for receiving the abutting portion, and the abutting portion can elastically swing up and down in the receiving groove. The electrical connector of claim 7, wherein the built-in circuit board is located behind the docking hole, the electrical connector further comprising a cable soldered to the built-in circuit board and overmolded to the built-in circuit board. Insulating body on the upper. The electrical connector of any one of claims 1-9, wherein the electrical connector is a USB plug connector, the contact portion of the first terminal group faces downward, and the contact portion of the second terminal group Heading upwards.