TWI505577B - 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, and the docking frame comprises a top wall, a bottom wall and two side walls connecting the top wall and the bottom wall, the top wall and the pair A receiving hole for receiving the tongue connector of the socket electrical connector is formed between the connecting plates, and the abutting portion of the plug terminal is exposed to the bottom wall and the two side walls respectively abut against 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.

To achieve the above object, the present invention relates to an electrical connector comprising: an insulating tongue comprising first and second tongues movable forward and backward; and a conductive terminal comprising a first terminal disposed on the first tongue And a second terminal group on the second tongue plate, the first terminal group having a contact portion arranged on the first tongue plate, the second terminal group having a contact portion arranged on the second tongue plate; The metal housing is covered with an insulating tongue, and the metal housing is provided with a mating hole for receiving the mating connector, and the mating hole is divided into an upper mating hole for receiving the first tongue and a lower butting of the second tongue. a hole; the electrical connector has first and second states, in a first state The second tongue is located behind the lower docking hole, and the contact portion of the first terminal group is exposed to the lower docking hole; in the second state, the first tongue is located behind the upper docking hole, and the contact portion of the second terminal group Exposure to the upper butt hole.

The tongue plate of the electrical connector of the present invention includes first and second tongue plates that are movable forward and backward. The butt hole is divided into an upper butt hole for receiving the first tongue plate and a lower butt hole for the second tongue plate, and the conductive terminal includes a first terminal group on the first tongue plate and a second terminal group on the second tongue plate, the first terminal group having a contact portion arranged on the first tongue plate, the second terminal group having a row a contact portion disposed on the second tongue plate, the electrical connector having a first state and a second state. In the first state, the second tongue plate is located behind the lower butt hole, and the contact portion of the first terminal group is exposed a lower butt hole; in the second state, the first tongue is located behind the upper docking hole, and the contact portion of the second terminal group is exposed to the upper docking hole, and the docking connector opposite to the electrical connector of the present invention can enter the upper butt joint The hole or the lower butt hole is in contact with the conductive terminal of the electrical connector, so that the electrical connector and the mating connector are electrically connected. During the docking process, the user does not have to worry about improper operation of the user, and the electrical connector is docked with the docking connector. .

Referring to the first to fifth figures, the electrical connector 100 of the present invention is a USB 2.0 plug connector including an insulative housing 1, a pair of elastic members 2, a built-in circuit board 3, a tongue 4, and a conductive terminal 5. , metal housing 6 and cable 7. The elastic member 2 is pivotally connected to the insulating body 1 and is sandwiched between the insulating body 1 and the tongue plate 4, and the conductive terminal 5 is disposed on the tongue plate 4. The front end of the cable 7 is soldered to the built-in circuit board 3.

The insulative housing 1 is overmolded on the built-in circuit board 3, and the top and bottom portions thereof are respectively There is a positioning post 11, a recess 12 and a recess 13, respectively, the two positioning posts 11 are respectively located in the recess 13, wherein a positioning post 11 and a recess 12 are located on the left side of the insulative housing 1, and another positioning post 11 and another recess 12 is located on the right side of the insulative housing 1, and the positioning post 11 is disposed opposite to the recess 12.

The pair of elastic members 2 are metal torsion springs, and each of the elastic members 2 includes a spiral portion 20 sleeved on the positioning post 11 and first and second pressing portions 21 and 22 extending from both ends of the spiral portion 20, first The end of the pressing portion 21 has a tail portion 211 extending backward, and the tail portion 211 can be inserted into the recess 12 of the insulative housing 1 , and the second pressing portion 22 is received in the recess 13 and pressed back against the inner wall of the recess 13 . .

The built-in circuit board 3 has a front end portion 31, a rear end portion 32, and an intermediate portion 33 connecting the front end portion 31 and the rear end 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. There is a metal connecting piece (not shown), the connecting piece is welded to the cable 7, the intermediate portion 33 is embedded in the insulating body 1, the front end portion 31 protrudes forwardly from the insulating body 1, and the rear end portion 32 is convex backward. The insulating body 1 is extended. 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. The first and second tongue plates 41, 42 are oppositely disposed to press back against the elastic member respectively The first pressing portion 21 of the second tongue plate 41 and the rear portion of each of the tongue plates 41 and 42 is provided with a plurality of receiving grooves 411 and 421 which are vertically penetrated, and a first flange 412 is respectively disposed on the left and right sides of the lower surface of the first tongue plate 41. A second flange 422 is respectively disposed on the left and right sides of the upper surface of the second tongue 42.

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 contact portion 55 of the contact portion 55 extends rearward, and the abutment portion 56 has an arcuate cantilever shape. The contact portion 55 of the first terminal group 51 is disposed on the lower surface of the first tongue plate 41 and located at the two first flanges 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 cable are connected. The contact portion 55 of the second terminal group 52 is disposed on the upper surface of the second tongue plate 42 and located between the two second flanges 422. The abutting portion 56 is partially received in the receiving groove 421. The second abutting portion 56 and the cable 7 can be electrically connected to each other in a one-to-one correspondence with the metal piece 311 on the lower surface of the built-in circuit board 3 and in contact with each other. The front end portion 31 of the built-in circuit board 3 is housed in a receiving space formed by the first and second tongue plates 41 and 42 together. The receiving space is formed between the first and second flanges 412 and 422, first and second. The flanges 412, 422 abut against the built-in circuit board 3 for guiding the first and second tongues 41, 42 to move smoothly back and forth.

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 butt hole 620 is divided into the upper and lower sides of the first tongue plate 41. The lower butt hole 6202 of the hole 6201 and the second tongue plate 42 is formed between the top wall 621, the two side walls 623 and the second tongue plate 42. The lower butt hole 6202 is formed on the bottom wall 622 and the two side walls. 623 and the first tongue 41 between the three.

When the first tongue 41 of the electrical connector 100 of the present invention is positioned above the second tongue 42 , the butt connector is docked, and the butt connector enters the lower butt hole 6202 to push the second tongue 42 to move backward against the elastic force of the elastic member 2 . Until the abutting against the insulative housing 1, the abutment of the second terminal group 52 The portion 56 is slid rearwardly along the upper surface of the built-in circuit board 3 and is spaced back and forth from the metal piece 311. The first tongue plate 41 is stationary, and the contact portion 55 of the first terminal group 51 is exposed to the lower butt hole 6202 to be in contact with the mating connector. The electrical connector 100 is electrically connected to the docking connector. When the electrical connector 100 is withdrawn from the docking connector, the second tongue 42 is returned to the original position under the elastic force of the elastic member 2.

When the second connector 42 of the electrical connector 100 is located above the first tongue 41, the docking connector is docked, and the docking connector enters the upper docking hole 6201 to push the first tongue 41 against the elasticity. The elastic force of the member 2 is moved backward until it abuts against the insulative housing 1. The abutting portion 56 of the first terminal group 51 slides rearward along the lower surface of the built-in circuit board 3, and is spaced back and forth from the metal piece 311, and the second tongue plate 41 is stationary. The contact portion 55 of the second terminal group 52 is exposed to the mating connector in the upper mating hole 6201, and the electrical connector 100 is electrically connected to the mating connector. When the electrical connector 100 exits the docking connector, the first tongue The plate 41 is returned to the original position under the elastic force of the elastic member 2.

Therefore, the electrical connector 100 of the present invention can still complete the docking of the electrical connector 100 and the docking connector when the user is not operating properly. During the docking process, there is no need to worry about improper operation of the user when the electrical connector 100 is docked. The connector 100 interfaces with the docking connector.

It is to be understood that the equivalents of the invention are intended to be included within the scope of the invention as claimed.

100‧‧‧Electrical connector

1‧‧‧Insulating body

11‧‧‧Positioning column

12‧‧‧ dent

13‧‧‧ Groove

2‧‧‧Flexible parts

20‧‧‧Spiral Department

21‧‧‧First Pressure Relief Department

22‧‧‧Second Pressure Relief Department

3‧‧‧ Built-in board

31‧‧‧ front end

311‧‧‧metal piece

32‧‧‧ Back end

33‧‧‧Intermediate Department

4‧‧ ‧ tongue

41‧‧‧First tongue

42‧‧‧second tongue

411, 421‧‧‧ housing trough

412‧‧‧First flange

422‧‧‧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

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

11‧‧‧Positioning column

2‧‧‧Flexible parts

21‧‧‧First Pressure Relief Department

4‧‧ ‧ tongue

41‧‧‧First tongue

411‧‧‧ receiving trough

42‧‧‧second tongue

422‧‧‧second flange

51‧‧‧First terminal group

52‧‧‧Second terminal group

7‧‧‧ Cable

Claims (10)

An electrical connector includes: an insulating tongue plate comprising first and second tongue plates movable forward and backward; and a conductive terminal comprising a first terminal set and a second tongue plate disposed on the first tongue plate a second terminal group, the first terminal group has a contact portion arranged on the first tongue plate, the second terminal group has a contact portion arranged on the second tongue plate; and the metal case is covered and insulated a tongue plate, the metal shell is provided with a mating hole for receiving the mating connector, and the mating hole is divided into an upper mating hole for receiving the first tongue and a lower mating hole of the second tongue; the electrical connector has In the first state and the second state, in the first state, the second tongue is located behind the lower docking hole, and the contact portion of the first terminal group is exposed to the lower docking hole; in the second state, the first tongue is located in the upper docking At the rear of the hole, the contact portion of the second terminal group is exposed to the upper butt hole. The electrical connector of claim 1, wherein the electrical connector further comprises an elastic member that presses forwardly against the first and second tongues, and the first and second tongues are on the elastic member. Can be restored to the original position under the push. The electrical connector of claim 2, wherein the electrical connector further comprises an insulative housing located behind the first and second tongues, the insulative housing is provided with a positioning post and a groove, and the positioning post is located In the recess, the elastic member is a metal torsion spring, and the elastic member includes a spiral portion sleeved on the positioning post and first and second pressing portions extending from both ends of the spiral portion, and the first pressing portion is pressed against On the first and second tongues, the second pressing portion presses against the inner wall of the groove. The electrical connector of claim 1, wherein the electrical connector further comprises a built-in circuit board having a metal piece corresponding to the conductive terminal, the electrical connection When the connector is in the first state, the first terminal group is in contact with the metal piece, the second terminal group is disconnected from the metal piece, and when the electrical connector is in the second state, the first terminal group is disconnected from the metal piece, and the second terminal is The group is in contact with the metal sheet. The electrical connector of claim 4, wherein the first and second terminal sets are respectively provided with elastic abutting portions that are pressed against the metal piece, and the first and second tongue plates are respectively provided with receiving The receiving groove of the connecting portion can be elastically oscillated in the receiving groove. The electrical connector of claim 4, wherein the electrical connector further comprises a cable soldered to the built-in circuit board, the cable being electrically connected to the first and second terminal sets. The electrical connector of claim 4, wherein the first and second tongues are respectively provided with a flange on the left and right sides, and the flange abuts against the built-in circuit board to guide the first or second The tongue moves back and forth. The electrical connector of claim 4, wherein the first terminal set is embedded in the first tongue plate, the second terminal set is embedded in the second tongue plate, and the built-in circuit board is embedded in the insulating body. on. The electrical connector according to any one of claims 1 to 8, wherein the metal casing comprises a top wall, a bottom wall and two side walls, and the top wall, the bottom wall and the two side walls are encircled to form the The butt hole, when the electrical connector is in the first state, the top wall and the two side walls are attached to the first tongue plate, and the lower butt hole is formed between the bottom wall, the two side walls and the first tongue plate; the electrical connector is In the second state, the bottom wall and the two side walls are attached to the second tongue plate, and the upper butting holes are formed between the top wall, the two side walls and the second tongue plate. The electrical connector of claim 9, wherein the electrical connection The device is a USB plug connector, the contact portion of the first terminal group faces downward, and the contact portion of the second terminal group faces upward.