TWI427869B - Connector - Google Patents

Description

Connector

The invention relates to a connector, in particular to a connector capable of transmitting optical signals.

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, seven companies including Intel, Compaq, Digital, IBM, Microsoft, NEC, and Northern Telecom 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 is gradually improving. With the development of the electronics industry and the advancement of technology, people are still working hard 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 and a fixed Conductive terminals on the insulative body and fiber optic devices for optical transmission. The insulative housing is provided with a receiving slot, and the optical fiber device can slide in the front and rear direction in the receiving slot, so that the optical fiber device can be rearward in the receiving slot when the USB connector is opposite to the mating connector with the optical fiber device. Sliding, when the USB connector is not docked with the mating connector, the fiber optic device slides forward to restore the original shape, thereby facilitating re-mating. However, after the optical fiber device slides in the receiving slot, it is inevitably in the up-down direction, the left-right direction, or the front-rear direction. The skew is created, which is not conducive to the fiber optic device being in contact with the fiber optic device on the docking connector. In addition, the optical fiber that is usually held on the optical fiber device in the insulative body is When the cable is connected, it is stretched. When the cable is stretched by force, the fiber is easily over-stretched and damaged.

Therefore, it is necessary to modify the conventional connector to overcome the above drawbacks.

In view of the above, it is an object of the present invention to provide a connector that ensures reliable docking of a fiber optic device and is less susceptible to damage.

In order to achieve the foregoing objective, the connector of the present invention includes an insulative housing, a conductive terminal held on the insulative housing, and a fiber optic device for optical signal transmission. The insulative housing is provided with an upper surface and a lower surface, and the insulative housing a receiving groove recessed from a front side of the lower surface and a groove extending in a front-rear direction on a rear side of the receiving groove, the groove including a first groove and a second groove on a rear side of the first groove, The width of the second groove extending in the lateral direction of the insulating body is greater than the width of the first groove. The fiber optic device includes a base that slides in the front-rear direction in the receiving groove, and an optical fiber that is disposed on the base and extends rearward in the front-rear direction. The optical fiber is provided with a coupling portion fixed in the base, a positioning portion extending rearward from the coupling portion and positioned in the first recess, and a bent portion extending rearward from the positioning portion and received in the second recess.

The object of the present invention can also be achieved by the following technical solution: a connector comprising: an insulative housing, the insulative housing is provided with a main body portion and a tongue extending forward from the main body portion, the insulative body is provided under the tongue plate a storage recessed groove and an elongated first recess extending in a front-rear direction on the rear side of the receiving slot; a conductive terminal fixed on the insulative housing; and an optical fiber device, the optical fiber device being included in the receiving slot in the front-rear direction a sliding base and an optical fiber disposed on the base and extending rearward in the front-rear direction, wherein the optical fiber is provided with a coupling portion fixed in the base and a positioning portion extending rearward from the coupling portion and positioned in the first recess.

Compared with the prior art, the present invention positions the positioning portion of each optical fiber therein by providing a first recess extending in the front-rear direction on the insulative housing, so that the connector of the present invention is opposite to the mating connector with the optical fiber device. When the connection or the undocking is not performed, the positioning portions of the optical fibers are not moved in the lateral direction of the insulating body, so that the pedestal can be effectively pinned to prevent the pedestal from being excessively moved in the lateral direction of the insulating body, thereby making the optical fiber device on the connector of the present invention and the docking The fiber optic devices on the connector can be aligned with each other in the front-rear direction to ensure reliable docking with the fiber optic device on the mating connector. Further, the rear side of the first recess is disposed along the lateral direction of the insulative housing. The second groove, when the fiber device moves backward, the rear side of the fiber can be bent into the second groove, so that the optical fiber device moves smoothly as a whole, and the bending portion can be directly disposed on the rear side of the fiber to be accommodated in the second groove. In the recess, so that when the cable connected to the rear side of the connector of the present invention is stretched, the bent portion of the optical fiber can be straightened to eliminate or reduce the optical fiber Rally.

The first figure is a perspective assembled view of the connector of the present invention.

The second figure is a partially exploded view of the connector of the present invention after the shield housing is disassembled.

The third figure is a partially exploded perspective view of the connector of the present invention at another angle after the shield housing is disassembled.

The fourth figure is a partial perspective assembled view of the connector of the present invention after the shield housing is removed.

The fifth figure is a partial exploded view of the connector of the present invention after the shield housing is removed.

Figure 6 is a partially exploded perspective view of the connector of the present invention at another angle after the shield housing is removed.

As shown in the first to sixth embodiments, a preferred embodiment of the connector 100 of the present invention is a USB optical plug connector including an insulative housing 1 and a plurality of conductive terminals 2 mounted on the insulative housing 1. The optical fiber device 3 on the insulative housing 1 , the spring 4 sandwiched between the insulative housing 1 and the optical fiber device 3 , the base 5 held on the insulative housing 1 , the positioning block 6 matched with the base 5 , and the cover insulation The shielding case 7 of the body 1, the outer insulating layer 8 surrounding the periphery of the shielding case 7, and the cable 9 connected to the conductive terminal 2 and the optical fiber device 3. The cable 9 includes a cable and an optical cable.

Referring to FIGS. 2 to 6 , the insulative housing 1 is provided with an upper surface 11 and a lower surface 12 and includes a main body portion 13 and a tongue 14 extending forward from the front end of the main body portion 13 . A plurality of terminal receiving grooves 131 are formed at the rear end of the lower surface 12 of the insulative housing 1. A receiving cavity 132 recessed from the upper surface 11 is disposed above the main body portion 13. The base 5 is fixed in the receiving cavity 132. A receiving groove 141 which is recessed from the front side of the lower surface 12 and a groove 142 which is located behind the receiving groove 141 and penetrates the receiving groove 141 in the front-rear direction are provided below the tongue plate 14 of the insulating body 1. The insulating body 1 is further recessed from the lower surface 12 with a plurality of grooves 143 extending in the front-rear direction. The groove 143 includes a floating groove 1433 at a rear side of the receiving groove 141, an elongated first groove 1431 at a rear side of the floating groove 1433, and a second groove 1432 at a rear side of the first groove 1431. The width of the two recesses 1432 extending in the lateral direction of the insulative housing 1 is greater than the width of the first recess 1431 extending in the lateral direction of the insulative housing 1. In the present embodiment, the width of the second recess 1432 is greater than the width of the adjacent first recess 1431 in the lateral direction of the insulative housing 1; indeed, in other embodiments, the second recess 1432 It may also be slightly larger than the width of one first groove 1431, or may be the same or larger than the width of all the first grooves 1431 in the lateral direction of the insulating body 1. The width of the floating slot 1433 along the left-right direction of the insulative housing 1 is smaller than the width of the receiving slot 141 and greater than the width of the first recess 1431 and the second recess 1432. The floating slot 1433 and the slot 142 intersect in the up and down direction through. The first groove 1431 penetrates the floating groove 1433 and the receiving groove 141 in the front-rear direction, and the second groove 1432 penetrates the first groove 1431 along the front-rear direction of the insulating body 1. The insulative housing 1 is provided with a positioning post 1421 extending in the direction of the receiving slot 142. The rear end of the spring 4 is received in the slot 142 and fixed on the positioning post 1421. The spring 4 can be resisted by the slot 142. The side is excessively oscillated in the lateral direction of the insulating body 1 by the restriction spring 4. The tongue plate 14 is recessed downwardly on the rear side of the receiving groove 141 to form a notch 149 which penetrates the receiving groove 141. The notch 149 is located just below the front end of the spring 4 to provide an up and down swing for the front end of the spring 4. space.

The insulative housing 1 is further provided with a recessed portion 144 located behind the receiving groove 141 and recessed from the lower surface 12 . The recessed portion 144 extends in the up and down direction of the insulative housing 1 to a depth smaller than the receiving slot 141 . The recessed portion 144 communicates with the receiving groove 141 in the front-rear direction and communicates with the first groove 1431 in the up-and-down direction. The connector 100 includes a cover 10 received in the recess 144. A circular hole 1441 is defined in each of the two sides of the recessed portion 144. The cover plate 10 is respectively disposed in the circular hole 1441. In addition, the cover 10 is further provided with an opening 102 corresponding to the slot 142 in the up and down direction of the insulative housing 1, so that the spring 4 can swing in the up and down direction when mounted on the positioning post 1421. The middle portion of the front end of the tongue plate 14 in the receiving groove 141 extends upward to form a front width and a narrow V-shaped stop block 145. The tongue plate 14 forms an upwardly convex portion on the left and right sides of the blocking block 145. Bump 147. The rear side of the tongue plate 14 is formed with a plurality of terminal grooves 148 arranged side by side.

The arrangement of the conductive terminals 2 conforms to the USB 3.0 transmission standard, and includes a first terminal 21 and a second terminal 22. The first terminal 21 is embedded in the insulative housing 1 and is provided with a flat first contact portion 211 located in front of the terminal slot 148 of the tongue 14 and located in the rear terminal receiving slot 131 of the insulative housing 1 to The first tail of the cable 9 is electrically connected 212. The second terminal 22 is retained in the base 5 and includes an elastic second contact portion 221 extending into the terminal slot 148 of the tongue plate 14, a second tail portion 223 electrically connected to the cable 9, and a second contact connection. The second holding portion 222 of the second portion 223 and the second portion 223. The first contact portion 211 and the second contact portion 221 are co-located above the tongue plate 12 and form two rows spaced apart from each other. The optical fiber device 3 is spaced apart from the first contact portion 211 and the second contact portion 221 in the vertical direction of the insulative housing 1 . The base body 5 is formed in a rectangular block shape and is provided with a plurality of terminal receiving holes 51 penetrating the base body 5 in the front-rear direction. The second holding portion 222 is retained in the terminal receiving hole 51 of the base 5 . The positioning block 6 protrudes into the rear end of the terminal receiving hole 51 to firmly fix the second terminal 22 in the insulative housing 1 . The second terminal 22 can also be embedded in the base body 5 and then assembled to the insulative housing 1 together with the base body 5.

As shown in the second to sixth embodiments, the optical fiber device 3 is slidable in the front-rear direction on the insulative housing 1 and includes a base 30 that slides in the front-rear direction in the receiving groove 141 of the insulative housing 1 and is mounted on the base. 30 on the fiber 35. A V-shaped groove 31 that is matched with the stopper block 145 and has a front width and a rear narrow is provided at an intermediate position of the front end of the base 30. The base 30 is provided with a pair of lenses 32 on the left and right sides of the V-shaped groove 31, respectively. The susceptor 30 defines a receiving hole 33 directly behind each lens 32. The first groove 1431 and the receiving hole 33 are in one-to-one correspondence in the front-rear direction. The base 30 is provided with a positioning hole 34 on the outer side of each pair of lenses 32 to be in contact with the cylinder on the mating connector (not shown), so that the plug connector is completely aligned with the center line of the socket connector. Ensure the quality of optical signal transmission. The rear end of the base 30 is provided with a rearwardly projecting stud 36. The front end of the spring 4 is fixed to the stud 36. The stud 36 extends toward the positioning post 1421 to clamp the spring 4 to the insulative body 1 and the base. Between 30 to resist the base 30 forward.

The connector 100 of the present invention includes four of said optical fibers 35. Each fiber 35 is fixed In the receiving hole 33 at the rear end of the lens 32, the coupling portion 351 optically coupled to the lens 32 and the self-coupling portion 351 extend rearwardly to receive the floating portion 355 positioned in the floating groove 1433, and continue to extend rearward from the floating portion 355 and be housed in the receiving portion 351. a positioning portion 352 in the first recess 1431, a curved portion 353 extending rearward from the positioning portion 352 and received in the second recess 1432, and a connecting portion extending rearward from the curved portion 353 to connect the cable 9 354. In the connector 100 of the present invention, the coupling portions 351 on the front side of each of the optical fibers 35 are respectively fixed to the base 30 and coupled to the lens 32 in one-to-one correspondence to provide high-speed optical signal transmission.

The floating portions 355 are all accommodated in the floating groove 1433 and can be slightly oscillated along the left and right or the up and down direction of the insulating body 1. The positioning portion 352 is respectively received in the first recess 1431 to restrict the positioning portion 352 from being excessively moved in the lateral direction of the insulative housing 1 , so that the base 30 can be effectively pinched to prevent the base 30 from excessively moving along the lateral direction of the insulative housing 1 . When the optical fiber device 3 on the connector 100 of the present invention is mated with the optical fiber device (not shown) on the docking connector, it can be aligned with each other in the front-rear direction to ensure reliable connection with the optical fiber device on the docking connector. In addition, after the optical fiber 35 is mounted on the insulative housing 1, the cover plate 10 is fixed in the recessed portion 144 to restrain the optical fiber 35 from being restrained in the recess 143, which can effectively prevent the optical fiber 35 from moving downward in the front-rear direction. The cocking is performed to pinch the susceptor 30 to prevent the susceptor 30 from excessively moving in the up and down direction of the insulating body 1, so that the optical fiber device 3 on the connector 100 of the present invention is reliably docked with the optical fiber device on the docking connector. In the embodiment, the positioning portion 352 of the optical fiber 35 is disposed on the insulative housing 1 to prevent the positioning portion 352 of the optical fiber 35 from being excessively moved in the lateral direction of the insulative housing 1 , and the optical fiber 35 is pressed by the cover plate 10 to prevent the optical fiber 35 from being lifted; It is to be noted that, in other embodiments, the first groove extending in the front-rear direction is directly disposed on the cover plate 10 to receive and position the optical fiber 35. The cover plate 10 is mounted on the insulating body 1 and then pressed together with the insulating body 1. The optical fiber 35 can also achieve the same purpose by preventing the optical fiber 35 from being lifted. The curved portion 353 is received in the second recess 1432 which is wider than the first recess 1431 in the lateral direction of the insulative housing 1 Therefore, when the cable 9 on the rear side of the connector 100 of the present invention is stretched, the bending portion 353 of the optical fiber 35 can be straightened to eliminate or reduce the pulling force of the optical fiber 35, so that the optical fiber 35 is not easily stretched. And damaged.

The shield case 7 includes an upper case 71 and a lower case 72 which are coupled to each other to cover the insulative body 1 therein to provide a good masking effect. The upper case 71 covers the tongue plate 14 and includes a bottom wall 711 that is pressed against the lower surface of the tongue plate 14, a top wall 712 opposite to the bottom wall 711, and two side walls 713 that connect the bottom wall 711 and the top wall 712. The front end of the bottom wall 711 is integrally stamped upward to form a projection 75 that abuts against the fiber optic device 3.

When the plug connector 100 of the present invention is inserted into a mating receptacle connector with a corresponding fiber optic device, the locating holes 34 in the fiber optic device 3 of the plug connector 100 mate with the posts on the fiber optic device of the corresponding mating receptacle connector, When the length and the short dimension of the positioning hole 34 are inconsistent with the cylinder, the optical fiber device 3 of the plug connector 100 can be adjusted to slide in the front-rear direction under the force of the spring 4, so that the optical fiber device 3 on the plug connector 100 and the corresponding The fiber optic device on the socket connector is flexible and reliable, and the positioning portion 352 of the optical fiber 35 is received in the first recess 1431 and moves in the front-rear direction in the first recess 1431, and the optical fiber 35 is in the initial position and during the active process. The position can be effectively controlled to facilitate the overall movement of the optical fiber device 3 without excessive offset; and, because the width of the second groove 1432 along the lateral direction of the insulating body 1 is larger than the first groove 1431, the positioning portion When moving in the front-rear direction, the 352 can be partially bent into the second recess 1432, so that the optical fiber device 3 can smoothly move in the front-rear direction under the force of the spring 4.

Moreover, when the optical fiber device 3 slides backward, the base 30 compresses the front end of the spring 4 backward, and since the rear end of the spring 4 is fixed to the positioning post 1421 of the insulative housing 1, the front end of the spring 4 can swing up and down in the recess 149 and below. The back end can be up and down in the opening 102 and above Swinging, so that the base 30 can swing up and down when sliding backward, whereby when the positioning hole 34 on the optical fiber device 3 of the plug connector 100 and the cylinder on the corresponding fiber optic device of the docking socket connector are not in the initial position On time, it can be adjusted by swinging up and down or left and right when the base 30 slides backward; at this time, the floating portion 355 of the optical fiber 35 is moved in the vertical direction or the left and right direction in the floating groove 1433 to facilitate the swinging of the base 30 up and down or left and right. Because the positioning portion 352 of the optical fiber 35 is positioned in the first recess 1431 and is pressed by the cover 10 without excessive movement in the up and down and left and right directions, the optical fiber device 3 can be effectively restrained and the optical fiber device 3 is prevented from excessively swinging. It cannot be reliably connected to the fiber optic device of the docking connector. In addition, when the user pulls the cable 9 on the rear side of the plug connector 100 of the present invention to pull it out of the docking receptacle connector, the bending portion 353 of the optical fiber 35 can be straightened to eliminate or reduce the optical fiber 35. Therefore, the tensile force is applied, so that the optical fiber 35 is not easily stretched and damaged.

When the plug connector 100 is pulled out, the base 30 slides forward under the force of the spring 4. At this time, the blocking block 145 abuts against the V-shaped groove 31 at the front end of the base 30. On the one hand, the stop The block 145 is located at the front end of the optical fiber device 3 to prevent the optical fiber device 3 from sliding forward out of the receiving groove 141. On the other hand, the blocking block 145 cooperates with the V-shaped groove 31 on the optical fiber device 3 to prevent the optical fiber device 3 from being insulated from the insulating body. 1 Shake in the lateral direction. The front end of the base 30 abuts against the protrusion 75 provided on the front end of the upper casing 71, and the front end of the base 30 abuts against the protrusion 147 provided at the front end of the tongue plate 14, thereby resisting the base The bumps 147 and the protrusions 75 on the 30 can prevent the base 30 from swaying in the up and down direction. As described above, the block 145, the bumps 147 and the protrusions 75 can be formed to resist the arrival of the optical fiber device 3. Holding the member thereby prevents the fiber optic device 3 from swaying in a direction perpendicular to the front-rear direction, and the fiber optic device 3 is better restored to the original state, thereby facilitating the plug connector to be reinserted into the receptacle connector.

When the plug connector 100 of the present invention is unplugged, when the optical fiber device 3 is accidentally vibrated or stretched, the rear side of the optical fiber 35 can be positioned in the first recess 1431 to pin the base 30, thereby preventing the optical fiber device 3 from being excessive. The swing affects the reliable docking of the fiber optic device with the docking connector. It is also possible to eliminate or reduce the pulling force of the optical fiber 35 by the straightening of the curved portion 353 of the optical fiber 35, so that the optical fiber 35 is less likely to be stretched and damaged.

The connector 100 disclosed in the above figures is a plug connector. In other embodiments of the present invention, the connector 100 can also be a socket connector.

In summary, this creation has indeed met the requirements of the invention patent, and filed 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 above-described embodiments, and those skilled in the art will be able to make equivalent modifications or changes in accordance with the spirit of the present invention. It should be covered by the following patent application.

1‧‧‧Insulating body

1431‧‧‧First groove

144‧‧‧Depression

30‧‧‧Base

352‧‧‧ Positioning Department

10‧‧‧ Cover

141‧‧‧ Reception trough

1432‧‧‧second groove

1441‧‧‧ round hole

32‧‧‧ lens

353‧‧‧Bend

102‧‧‧ openings

Claims (21)

A connector includes: an insulating body, wherein the insulating body is provided with an upper surface, a lower surface, a receiving groove recessed from a front side of the lower surface, and a groove extending at a rear side of the receiving groove and extending in a front-rear direction, wherein the groove includes a groove and a second groove on a rear side of the first groove, the width of the second groove extending in a lateral direction of the insulating body is greater than a width of the first groove; the conductive terminal is retained on the insulating body; and the optical fiber The optical fiber device includes a base that slides in the front-rear direction in the receiving groove, and an optical fiber that is disposed on the base and extends rearward and backward in the front-rear direction, and the optical fiber is disposed on the optical fiber device. a coupling portion fixed in the base, a positioning portion extending rearward from the coupling portion and positioned in the first recess, and a bent portion extending rearward from the positioning portion and received in the second recess. The connector of claim 1, wherein the first groove penetrates the receiving groove in a front-rear direction of the insulating body, and the positioning portion of the optical fiber is received in the first groove and can be in the first concave The groove moves in the front and rear direction. The connector of claim 2, wherein the second groove penetrates the first groove in a front-rear direction of the insulating body, and the positioning portion is movable into the second groove in the front-rear direction. The connector of claim 1, wherein the base is provided with a lens optically coupled to the optical fiber, and a receiving hole located behind the lens to fix a coupling portion of each optical fiber, the first recess and the receiving The holes correspond one-to-one in the front-rear direction. The connector of claim 4, wherein the base is provided with a positioning hole on each side of the lens to be opposite to the cylinder on the mating connector. The connector of claim 1, wherein the insulating body is further provided with a receiving body a recessed portion behind the recess and recessed from the lower surface, the recessed portion communicating with the first recess in the up and down direction, the connector further comprising a cover plate, the cover plate being received in the recessed portion and pressed against the positioning Below the section to prevent the fiber from tilting down. The connector of claim 1, wherein the insulative housing is provided with a positioning post located behind the receiving slot and extending toward the receiving slot, and the base is provided with a protruding post extending opposite to the positioning post. The connector further includes a spring clamped between the base and the insulative housing, the spring is fixed at one end to the positioning post, and the other end is sleeved on the stud and abuts against the rear end of the base. The connector of claim 7, wherein the insulating body is provided with a slot extending through the receiving slot behind the receiving slot, and the positioning post protrudes into the slot forward, the spring One end is received in the slot to restrict the spring from excessively swinging in the lateral direction of the insulating body. The connector of claim 7, wherein the rear side of the bottom wall of the receiving groove is recessed downwardly to form a recess extending in the up and down direction with the receiving groove, the notch being located below the front end of the spring. Provides space for the front end of the spring to swing up and down. The connector of claim 1, wherein the front end of the base is provided with a front wide and a narrow V-shaped groove, and the front end of the insulating body extends downwardly with a front width and a narrow V-shaped stop. Block, the stop block abuts in the V-shaped groove rearward and in the left-right direction. The connector of claim 1, wherein the connector is a USB plug connector. A connector includes: an insulative housing; the insulative housing is provided with a main body portion and a tongue plate extending forward from the main body portion, the insulative housing is provided with a receiving groove recessed from the lower side of the tongue plate and located at a rear side of the receiving groove And an elongated first recess extending in the front-rear direction; a conductive terminal fixed on the insulative housing; and a fiber optic device, the optical fiber device including a base sliding in the front and rear direction in the receiving slot An optical fiber extending rearward and backward in the front-rear direction, the optical fiber is provided with a coupling portion fixed in the base and a positioning portion extending rearward from the coupling portion and positioned in the first recess. The connector of claim 12, wherein the first groove penetrates the receiving groove in a front-rear direction of the insulating body, and the positioning portion of the optical fiber is received in the first groove and can be in the first concave The groove moves in the front and rear direction. The connector of claim 13, wherein the insulative housing is further provided with a second recess on a rear side of the first recess, the second recess along the front and rear direction of the insulative housing and the first recess The width of the through hole extending in the lateral direction of the insulating body is greater than the width of the first groove, and the positioning portion is movable into the second groove in the front-rear direction. The connector of claim 14, wherein the optical fiber is further provided with a bent portion connected to a rear side of the positioning portion, and the bent portion is received in the second recess. The connector of claim 12, wherein the insulating body is further provided with a floating groove between the first groove and the receiving groove, and the optical fiber is provided with a floating portion between the coupling portion and the positioning portion. The floating portion is received in the floating slot and movable in a lateral direction of the insulating body. The connector of claim 12, wherein the base is provided with a lens optically coupled to the optical fiber and a receiving hole located behind the lens to fix a coupling portion of each optical fiber, the first recess and the receiving The holes correspond one-to-one in the front-rear direction. The connector of claim 17, wherein the base is provided with a positioning hole on each side of the lens to be opposite to the cylinder on the mating connector. The connector of claim 12, wherein the insulative housing is further provided with a recessed recess located behind the receiving slot, the recessed portion communicating with the first recess in an up and down direction, the connector The cover plate further includes a cover plate received in the recessed portion and pressed under the positioning portion to prevent the optical fiber from being lifted downward. The connector of claim 12, wherein the insulative housing is provided with a positioning post located behind the receiving slot and extending toward the receiving slot, and the base is provided with a positioning post a connector extending from the opposite side, the connector further includes a spring clamped between the base and the insulative housing, the spring is fixed at one end to the positioning post, and the other end is sleeved on the post and abuts against the base end. The connector of claim 12, wherein the arrangement of the conductive terminals conforms to the USB 3.0 transmission standard, and includes a first terminal and a second terminal, the first terminal including a flat plate above the tongue plate a first contact portion, the second terminal including an elastic second contact portion located above the tongue plate and behind the first contact portion.