TWI426666B - Connector - Google Patents

Description

Connector

The present invention relates to a connector, and more particularly to a connector having a signal terminal and a ground terminal.

The Universal Serial Bus (USB) interface is a standard input/output interface that has been widely used in the design of many electronic devices. In 1994, Intel, Compaq, Digital, IBM, Microsoft, NEC, Northern Telecom and other companies jointly established the USB Association (USB-IF) to initially establish a USB interface specification. So far, the USB Association has released versions 1.0, 1.1, 2.0 and 3.0, and the USB transfer rate has gradually improved.

With the development of the electronics industry and the advancement of technology, manufacturers are still continually striving to increase the transmission rate of USB. Currently, there is a USB connector that can transmit optical signals to further increase the transmission rate. The connector usually includes an insulating body. a conductive terminal fixed to the insulative housing, a fiber optic device for optical transmission, and a spring sandwiched between the insulative housing and the optical fiber device. During the docking process of the USB connector, the fiber optic device slides back and compresses the spring, thereby enabling the USB connector to be docked with a mating connector also having a fiber optic device.

In summary, it is necessary to design a connector to solve the above technical problems.

The main purpose of this creation is to provide a connector with reduced signal crosstalk.

In order to achieve the above object, a connector includes an insulative housing including a main body portion and a tongue plate projecting forwardly from the main body portion; the conductive terminal is fixed on the insulative housing, and the conductive terminal includes a signal terminal and a grounding terminal; a fiber optic device for optical signal transmission, the optical fiber device being disposed on the insulative housing and slidable in the front-rear direction; and a metal elastic member The elastic member is electrically connected to the grounding terminal. The elastic member is electrically connected to the grounding terminal.

The purpose of the present invention is also achieved by the following technical solution: a connector comprising: an insulating body comprising a tongue plate and a receiving groove provided on the tongue plate; a conductive terminal disposed on the insulating body, the conductive terminal comprises The signal terminal and the grounding terminal; the optical fiber device is used for optical signal transmission, the optical fiber device is housed in the receiving groove and can slide back and forth; and the metal elastic member is clamped between the optical fiber device and the insulating body and the grounding terminal Electrical contact.

Compared with the prior art, the connector of the present invention is electrically connected to the grounding terminal by the elastic member, which reduces the signal crosstalk between the elastic member and the signal terminal, and improves the signal transmission quality of the connector.

100, 100’‧‧‧ connectors

1, 1'‧‧‧Insulated body

11, 11' ‧ ‧ main body

111‧‧‧ positioning slot

112‧‧‧ holding slot

113‧‧‧fixed slot

114’‧‧‧First groove

12, 12’‧‧‧ tongue plate

121‧‧‧ receiving trough

122, 122’‧‧‧ slotting

123, 123’‧‧‧ recess

124‧‧‧Positioning column

125‧‧‧ block

127‧‧‧First terminal slot

128‧‧‧Second terminal slot

13, 13'‧‧‧Insulation block

130, 130’‧‧‧ openings

134’‧‧‧ gap

135’‧‧‧second groove

137’‧‧‧Snap slot

2‧‧‧Electrical terminals

21‧‧‧First terminal

23, 23'‧‧‧First grounding terminal

24‧‧‧Power terminal

211‧‧‧ first contact

212, 212'‧‧‧First Holding Department

213‧‧‧First tail

25, 25'‧‧‧ first pair of differential signal terminals

22‧‧‧second terminal

26, 26'‧‧‧ second pair of differential signal terminals

27, 27'‧‧‧ third pair of differential signal terminals

28‧‧‧Second ground terminal

221‧‧‧Second contact

222‧‧‧Second holding unit

223‧‧‧second tail

3‧‧‧Fiber optic devices

30‧‧‧Base

32‧‧‧ dent

33‧‧‧ lens

34‧‧‧Positioning holes

35‧‧‧Fiber

36‧‧‧Bump

4, 4'‧‧‧ elastic parts

40‧‧‧Spiral Department

41‧‧‧ horizontal department

42‧‧‧Upright Department

43‧‧‧Apartment

8‧‧‧ Shell

81‧‧‧ top wall

82‧‧‧ side wall

83‧‧‧ bottom wall

9‧‧‧Upper shell

102‧‧‧ Cable

5‧‧‧Connecting parts

51‧‧‧First connection

52‧‧‧Second connection

53‧‧‧Flexible Department

54‧‧‧Apartment

55‧‧‧ Notch

The first figure is a perspective assembled view of the connector of the present invention; the second figure is a partial three-dimensional combination view of the connector of the present invention; the third figure is a partial three-dimensional combination view of the other angle of the second figure; The figure is a partial perspective view of the insulating block; the fifth figure is a cross-sectional view along the VV line in the first figure; the sixth figure is a partial exploded view of the second figure; the seventh figure is a part of the other angle of the sixth figure. 3 is an exploded perspective view of a connector according to another embodiment of the present invention; a ninth drawing is a partially exploded perspective view of the eighth embodiment; and a tenth embodiment is a connector of another embodiment of the present invention. Partial exploded view.

As shown in the first to seventh embodiments, the connector 100 of the present invention is a USB plug connector, which includes an insulative housing 1 , a plurality of conductive terminals 2 mounted on the insulative housing 2 , and a sliding optical fiber disposed on the insulative housing 1 . The device 3, the metal elastic member 4 sandwiched between the insulating body 1 and the optical fiber device 3, the seat body 6 fixed on the insulating body 1, the positioning block 7 matched with the seat body 6, and the insulating body 1 The metal casing 8 and the metal upper casing 9, the outer insulating layer 10 surrounding the outer casing 8 and the periphery of the upper casing 9, and the cable 102 connected to the conductive terminal 2 and the optical fiber device 3.

The insulative housing 1 includes a main body portion 11 and a tongue plate 12 projecting forward from the front end of the main body portion 11. The top of the main body portion 11 is provided with two positioning slots 111 extending forwardly through the main body portion 11 for receiving the optical fibers 35 of the optical fiber device 3. The upper end of the main body portion 11 is provided with a plurality of holding grooves 112 for fixing the conductive terminals 2, and a fixing groove 113 for fixing the seat body 6 is provided below the main body portion 11. A receiving groove 121 is defined in the upper surface of the tongue plate 12, a slot 122 extending rearward from the top of the receiving slot 121, and a recess 123 extending downward from the slot 122. The insulative housing 1 includes a plate-shaped insulating block fixed in the slot 122. 13. The inner side wall of the receiving slot 121 is provided with a positioning post 124 extending forwardly into the receiving slot 121. The positioning slot 111 further extends forwardly to the receiving slot 121 and is recessed on the bottom wall of the slot 122. The front end of the tongue plate 12 extends upward to form a front wide and rear narrow U-shaped stop block 125. The bottom of the tongue plate 12 is provided with a row of first terminal slots 127 and a row at the rear end of the first terminal slot 127. Two terminal slots 128.

The first terminal 21 includes a first ground terminal 23, The power terminal 24 and the first pair of differential signal terminals 25 between the first ground terminal 23 and the power terminal 24, the second terminal 22 includes a second pair of differential signal terminals 26, a third pair of differential signal terminals 27, and a second pair A second ground terminal 28 between the differential signal terminal 26 and the third pair of differential signal terminals 27. The first, second, and third pairs of differential signal terminals 25, 26, 27 together form a signal terminal.

The first terminal 21 includes a flat first contact portion 211 , a first tail portion 213 electrically connected to the cable 10 , and a first holding portion 212 connecting the first contact portion 211 and the first tail portion 213 . The second terminal 22 includes an elastic second contact portion 221 , a second tail portion 223 fixed in the fixing slot 112 of the insulating body 1 and electrically connected to the cable 10 , and a second holding portion connecting the second contact portion 221 and the second tail portion 223 . Part 222. The first contact portion 211 is received in the first terminal slot 127, and the second contact portion 221 is received in the second terminal slot 128 such that the first contact portion 211 and the second contact portion 221 are co-located under the tongue plate 12 and The first retaining portion 212 is fixed to the main body portion 11 of the insulative housing 1 , wherein the first retaining portion 212 of the first grounding terminal 23 is exposed in the recess 123 of the tongue plate 12 , and the base 6 is fixed The through groove 61 of the second holding portion 222, the positioning block 7 cooperates with the seat body 6 to better fix the second terminal 22 in the insulative housing 1. In other embodiments, the first terminal can be embedded in the insulating body, and the second terminal can be embedded on the body and then assembled to the insulating body.

The optical fiber device 3 is slidably received in the receiving slot 121 of the tongue 12 of the insulative housing 1 The base 30 and the optical fiber 35 mounted on the base 30 are provided with a U-shaped recess 32 that is matched with the stopper 125 and has a front width and a rear narrower at an intermediate position of the front end of the base 30. The base 30 is respectively provided with a lens 33 on the left and right sides of the recess 32 and an optical fiber 35 mounted on the rear end of the lens 33 and optically coupled with the lens 33 to provide high-speed optical signal transmission. Although only two lenses 33 are shown in the drawings, the base 30 is provided with positioning holes 34 on both sides of the two lenses 33 to be in contact with the posts on the mating receptacle connector, thereby making the plug connector and the socket The centerline of the connector is perfectly aligned to ensure the quality of the optical signal transmission. In other embodiments, the susceptor 30 may also be provided with a pair of lenses 33 or more lenses 33 on the left and right sides of the recess 32. The rear end of the base 30 is provided with a protruding post 36 protruding rearward, and the front end of the elastic member 4 is sleeved on the protruding post 36. The optical fiber 35 is received in the positioning groove 111 of the insulative housing 1. During the sliding process of the base 30, the optical fiber 35 slides simultaneously in the positioning slot 111.

The elastic member 4 is a spring formed by bending a metal rod, and includes a spiral portion 40 extending in the front-rear direction and being expandable and contractible, a horizontal portion 41 extending horizontally from one end of the spiral portion 40 to one side, and being perpendicular to the horizontal portion 42. The upright portion 42 and the upright portion 42 are bent downwardly and vertically extending 43. The front end of the insulating block 13 is provided with an opening 130 for receiving the spiral portion 40, so as to avoid the spiral portion 40 from being under the expansion and contraction and the bottom surface of the insulating block 13. Phase friction. The front end of the spiral portion 40 is sleeved on the protruding post 36 of the optical fiber device 3, and the rear end is sleeved on the positioning post 124 of the insulative housing 1. The horizontal portion 41 and the upright portion 42 constitute a pressing portion that presses back against the insulative housing 1. The horizontal portion 41 is fixed between the insulating block 13 and the inner side wall of the slot 122 on the inner side wall of the rear pressing groove 122. The optical fiber 35 is located between the horizontal portion 41 and the bottom wall of the slot 122, and the upright portion 42 abuts. The portion 43 is received in the recess 123 of the insulative housing 1 , and the upright portion 42 is pressed back against the inner side wall of the recess 123 . The abutting portion 43 is pressed downward against the first ground terminal 23 holding portion 212 to form a first grounding terminal 23 . The electrical connection reduces the signal crosstalk between the elastic member 4 and the signal terminals 25, 26, 27, and improves the signal transmission quality of the connector 100. Further, the abutting portion 43 is integrally provided on the elastic member 4, which reduces the manufacturing cost of the elastic member 4. In other embodiments, the abutting portion can be fixed to the first grounding terminal, and the abutting portion can also be in electrical contact with the second grounding terminal, and the signal crosstalk can be reduced to improve the signal transmission quality of the connector. Alternatively, the connector is additionally provided with a metal connector that electrically connects the elastic member to at least one of the first and second ground terminals, and the object of the present invention can also be achieved.

The outer casing 8 and the upper casing 9 together cover the insulative body 1 to provide a good masking effect. The outer casing 8 includes a top wall 81 above the cover tongue 12, a bottom wall 83 opposite the top wall 81, and a connection top wall 81. And two side walls 82 of the bottom wall 83.

When the plug connector is inserted into the docking receptacle connector with the corresponding fiber optic device (not shown), the fiber optic device 3 can slide rearwardly within the receiving slot 121. When the plug connector is pulled out, the base 30 slides forward under the force of the elastic member 4, and finally the stopper 125 abuts against the recess 32 at the front end of the base 30. On the one hand, the stopper 125 is located at the optical fiber device 3. The front end prevents the optical fiber device 3 from sliding forward out of the receiving groove 121. On the other hand, the blocking block 125 cooperates with the recess 32 on the optical fiber device 3 to prevent the optical fiber device 3 from shaking in the left-right direction. The fiber optic device 3 is better restored to the original state without offset during the docking process, thereby facilitating the connector 100 to be inserted into the receptacle connector again, the fiber optic device 3 on the connector 100 and the corresponding connector on the receptacle connector The fiber optic device can be precisely docked.

Of course, there may be other embodiments of the present invention, such as another embodiment shown in the eighth to tenth embodiments, further including a metal fixed to the insulating body 1' after being disposed separately from the elastic member 4'. The connecting member 5, the elastic member 4' is disposed apart from the first grounding terminal 23', and the two ends of the connecting member 5 abut against the elastic member 4' and the first grounding terminal 23', respectively, so that the elastic member 4' and the first grounding The terminal 23' establishes a ground loop by the connecting member 5, and the signal crosstalk between the elastic member 4' and the first, second, and third pairs of differential signal terminals 25', 26', 27' can be reduced to improve the connector. 100' signal transmission quality, of course, the elastic member 4' and other ground terminals establish a ground loop through the connecting member 5, and the object of the present invention can also be achieved.

A first groove 114' is formed between the rear end of the insulating block 13' and the main body portion 11' of the insulating body 1', and a notch 134' penetrating downward from the first groove 114' is provided at the outer end of the rear end of the insulating block 13'. The bottom wall of the groove 122' is provided with a recess 123' below the notch 134'. The insulating block 13' is recessed with a second groove 135' extending vertically from the first groove 114'. The opening 130' is from the first The two recesses 135' extend downward through the insulating block 13', and the inner side wall of the rear end of the opening 130' is provided with a snap groove 137' penetrating the second recess 135'.

The connecting member 5 is formed by punching a metal sheet, and includes a first connecting portion 51 of a horizontal sheet shape, a second connecting portion 52 extending vertically forward from the first connecting portion 51, and bending downward from the first connecting portion 51. The elastic portion 53 extending obliquely and the abutting portion 54 which is bent downward from the front end of the second connecting portion 52 and abuts against the elastic member 4'. The first and second connecting portions 51 and 52 are located between the elastic portion 53 and the abutting portion 54. The first connecting portion 51 is fixed in the first recess 114' to be prevented from moving in the front-rear direction, and the second connecting portion 52 is fixed in the second recess 135' to be prevented from moving in the left-right direction. The abutting portion 53 is pressed down through the insulating block 13' notch 134' into the concave portion 123' of the tongue plate 12' against the first holding portion 212' of the first grounding terminal 23', and the abutting portion 54 is engaged by the locking groove 137' The buckle is fixed and prevented from moving back and forth, and the bottom of the abutting portion 54 is provided with a notch 55 which is sleeved on the elastic member 4'.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the foregoing embodiments, and those skilled in the art will be able to make equivalent modifications or variations in accordance with the spirit of the present invention. It should be covered by the following patent application.

11‧‧‧ Main body

111‧‧‧ positioning slot

12‧‧ ‧ tongue

121‧‧‧ receiving trough

122‧‧‧ slotting

21‧‧‧First terminal

35‧‧‧Fiber

3‧‧‧Fiber optic devices

4‧‧‧Flexible parts

3‧‧‧Fiber optic devices

43‧‧‧Apartment

Claims (31)

A connector includes: a main body portion and a tongue plate protruding forward from the main body portion; the conductive terminal is fixed on the insulating body, the conductive terminal comprises a signal terminal and a grounding terminal; For the optical signal transmission, the optical fiber device is disposed on the insulative housing and slidable in the front-rear direction; and the metal elastic member is clamped between the optical fiber device and the insulative housing, and the elastic member is electrically connected to the ground terminal. The elastic member integrally extends with an abutting portion electrically contacting the grounding terminal and a pressing portion integrally extending from the abutting portion and pressing back against the insulating body. The connector of claim 1, wherein the insulative housing is provided with a recess for receiving the abutting portion, the grounding terminal has a retaining portion that is retained by the insulative housing, and the retaining portion is exposed to the recess and is offset Contact contact. The connector according to claim 2, wherein the pressing portion includes a horizontal portion extending in the left-right direction and an upright portion protruding downward from the horizontal portion into the concave portion, and the horizontal portion is pressed rearwardly On the insulative housing, the upright portion is pressed back against the inner side wall of the recess, and the abutting portion extends horizontally forward from the upright portion. The connector of claim 3, wherein the top of the tongue plate is recessed with a receiving groove for receiving the optical fiber device and a slot extending rearward from the top of the receiving groove, and the optical fiber device can slide in the front and rear direction in the receiving groove. The insulating body includes an insulating block fixed in the slot, the front end of the insulating block is disposed at the top of the receiving slot, and the horizontal portion is received in the slot and is sandwiched between the insulating block and the inner side wall of the slot, and the recess is self-grooving Formed downwards. The connector of claim 4, wherein the elastic member comprises a spiral portion extending in the front-rear direction and extending, and the insulating body is provided with a positioning post protruding forwardly into the receiving groove, the rear end of the spiral portion The sleeve is sleeved on the positioning post, and the pressing portion extends from the rear end of the spiral portion, and the front end of the insulating block is provided with an opening for receiving the spiral portion. The connector of claim 1, wherein the abutting portion is fixed to the grounding terminal. The connector of claim 1, wherein the connector comprises an elastic member After being disposed, the metal connecting member is disposed on the insulating body, and the connecting member is in contact with the elastic member and the grounding terminal, and the elastic member and the grounding terminal are electrically connected by the connecting member. The connector of claim 7, wherein the connector is provided with a recess sleeved on the elastic member and an elastic portion that is pressed against the ground terminal. The connector of claim 8, wherein the insulative housing comprises an insulating block fixed between the connecting member and the elastic member, the front end of the insulating block is provided with an opening penetrating vertically, and the two side walls of the open rear end are provided with a card. In the buckle groove, the connecting member is provided with an abutting portion fixed to the locking groove, and the abutting portion is prevented from moving in the expansion and contraction direction of the elastic member by the locking groove, and the notch is disposed on the abutting portion. The connector of claim 7, wherein the top of the tongue plate is recessed with a receiving groove for receiving the optical fiber device and the elastic member, and a slot extending rearward from the top of the receiving groove, the insulating body is fixed in the slot. The insulating block has a front end of the insulating block disposed around the top of the receiving groove, and the connecting member is fixed by the insulating block and the main body portion. The connector of claim 10, wherein the connector is provided in a sheet-like structure, the connector comprises a first connecting portion and a second connecting portion extending vertically forward from the first connecting portion, the insulating block and A first groove for fixing the first connecting portion is formed between the main body portions, and the top of the insulating block is provided with a second groove extending vertically from the first groove and extending downward from the first groove to the slotted groove The second connecting portion is fixed in the second recess. The connector of claim 11, wherein the connecting member is provided with an elastic portion extending downward from the first connecting portion and pressing against the grounding terminal, and extending downward from the second connecting portion and elastic The first connecting portion and the second connecting portion are connected between the elastic portion and the abutting portion. The connector of claim 11, wherein the tongue plate is provided with a recess extending downward from the slot, the grounding terminal has a retaining portion that is fixed to the insulative housing, and the retaining portion is exposed in the recess, The connecting member is provided with an elastic portion that extends downward through the notch and extends into the recess to further press against the grounding terminal. The connector of any one of claims 1 to 13, wherein the optical fiber device is disposed above the tongue plate, and the arrangement of the conductive terminals conforms to the USB 3.0 transmission standard, and includes the first terminal and a second terminal, the first terminal includes a flat first contact portion under the tongue plate, and the second terminal includes an elastic portion located below the tongue plate and behind the first contact portion In the two contact portions, the arrangement of the first terminal conforms to the USB2.0 transmission standard, and the first terminal includes a first ground terminal, a power terminal, and a first pair of differential signal terminals located between the first ground terminal and the power terminal, and the second terminal The second pair of differential signal terminals, the third pair of differential signal terminals, and the second ground terminal between the second pair of differential signal terminals and the third pair of differential signal terminals, the elastic member being at least coupled to the first and second ground terminals One of them is electrically connected. The connector of claim 1, wherein the tongue plate is provided with a stop block at a front end of the fiber optic device for restricting excessive forward sliding of the fiber optic device, the fiber optic device comprising a base and a base mounted thereon The optical fiber has a lens optically coupled to the optical fiber and positioning holes on both sides of the lens. The connector of claim 15 , wherein the elastic member comprises a pressing portion that presses against the insulating body, the insulating body is provided with a groove for receiving the pressing portion and the optical fiber, and the optical fiber is located at the pressing portion. Between the grooved bottom wall. The connector of claim 14, wherein the connector is a USB plug connector. A connector includes: an insulating body, comprising a tongue plate and a receiving groove provided on the tongue plate; the conductive terminal is disposed on the insulating body, the conductive terminal comprises a signal terminal and a grounding terminal; and the optical fiber device is used for performing In the optical signal transmission, the optical fiber device is received in the receiving slot and can slide back and forth; and the metal elastic member is clamped between the optical fiber device and the insulating body and electrically connected to the grounding terminal, and the elastic member is provided to be pressed against An abutting portion on the grounding terminal and a pressing portion that presses back against the insulating body, and the abutting portion is connected to the pressing portion. The connector of claim 18, wherein the elastic member comprises a spiral portion extending in the front-rear direction and extending, and the insulating body is provided with a positioning post protruding forwardly into the receiving groove, the rear end of the spiral portion The sleeve is sleeved on the positioning post, and the pressing portion extends from the rear end of the spiral portion, and the pressing portion is located between the spiral portion and the abutting portion. The connector of claim 18, wherein the insulative housing is provided with a recess for receiving the abutting portion, the grounding terminal has a retaining portion that is retained by the insulative housing, and the retaining portion is exposed to the recess and is offset Contact contact. The connector of claim 20, wherein the pressing portion comprises a left and right side Extending downwardly from the horizontal portion and the horizontal portion into the upright portion protruding into the concave portion, the horizontal portion is pressed back against the insulating body, and the upright portion is pressed back against the inner side wall of the concave portion, and the abutting portion is from the upright portion Extend horizontally forward. The connector of claim 21, wherein the top of the tongue is concavely provided with a slot extending rearward from the top of the receiving slot, and the insulating body comprises an insulating block fixed in the slot, and the front end of the insulating block is The top portion of the receiving groove is received in the slot and is sandwiched between the insulating block and the inner side wall of the slot, and the recess is formed to extend downward from the slot. The connector of claim 18, wherein the connector further comprises a metal connecting member disposed separately from the elastic member, the connecting member is disposed on the insulating body, the grounding terminal or the elastic member, and the connecting member and the elastic member respectively The grounding terminal is electrically contacted, and an electrical connection is established between the elastic member and the grounding terminal by the connecting member. The connector of claim 23, wherein the connecting member comprises an elastic portion that is pressed against the grounding terminal and an abutting portion that contacts the elastic member, and the abutting portion is disposed on the elastic member. Notch. The connector of claim 24, wherein the insulative housing is provided with a snap groove for fixing the abutting portion, the front end of the elastic member is pressed forward on the optical fiber device, and the rear end is pressed back against the insulation. On the body, the abutting portion is in contact with the rear end of the elastic member. The connector of claim 25, wherein the tongue plate comprises a receiving groove for receiving the optical fiber device and a slot extending rearward from the top of the receiving slot, the insulating body comprises an insulating block fixed in the slot, the connecting member It is fixed on the insulating block. The connector of claim 26, wherein the connector is configured as a sheet-like structure, and the connector comprises a first connecting portion and a second connecting portion extending vertically forward from the first connecting portion, the first connection The second connecting portion is connected between the elastic portion and the abutting portion, the insulating body includes a main body portion, and a first groove for fixing the first connecting portion is formed between the insulating block and the main body portion, and the top of the insulating block is provided a second groove extending vertically forward from the first groove and a notch extending downward from the first groove to the groove, the second connecting portion being fixed in the second groove. The connector of claim 25, wherein the tongue plate is provided with a recess extending downward from the slot, the grounding terminal has a retaining portion that is retained with the insulative housing, and the retaining portion is exposed to the recess, The elastic portion is provided with an abutting portion that extends downward into the recess to further press against the ground terminal. The connector of any one of clauses 18 to 28, wherein the optical fiber device is disposed above the tongue plate, and the arrangement of the conductive terminals conforms to the USB 3.0 transmission standard, and includes the first terminal and a second terminal, the first terminal includes a flat first contact portion under the tongue plate, and the second terminal includes an elastic second contact portion located under the tongue plate and behind the first contact portion, the first terminal The arrangement conforms to the USB2.0 transmission standard, and the first terminal includes a first ground terminal, a power terminal, and a first pair of differential signal terminals between the first ground terminal and the power terminal, and the second terminal includes a second pair of differential signal terminals, And a third pair of differential signal terminals and a second ground terminal located between the second pair of differential signal terminals and the third pair of differential signal terminals, wherein the elastic member is electrically connected to at least one of the first and second ground terminals. The connector of claim 29, wherein the tongue plate is provided with a stop block at a front end of the fiber optic device for restricting excessive forward sliding of the fiber optic device, the fiber optic device comprising a base and a base mounted thereon The optical fiber has a lens optically coupled to the optical fiber and positioning holes on both sides of the lens. The connector of claim 29, wherein the connector is a USB plug connector.