TWI433403B - Connector - Google Patents

Description

Connector

The present invention relates to a connector, and more particularly to a connector for 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 world-renowned computer and communication 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 a conductive terminal on the insulative housing, a fiber optic device for optical transmission, and a spring disposed on the insulative housing and abutting against the fiber optic device. The insulative housing is provided with a receiving slot. When the USB connector is opposite to the mating connector with the optical fiber device, the optical fiber device can slide backward in the receiving slot under the spring, when the USB connector is not When docked with the docking connector, the fiber optic device slides forward under the spring to restore the original shape to facilitate docking again. However, when the optical fiber device slides back against the pressing spring, the spring is compressively deformed and easily oscillated in the left and right or up and down directions, so that the optical fiber device is likely to be skewed in the up and down direction or the left and right direction when sliding in the receiving groove, thereby being disadvantageous to the optical fiber device. Opposing the fiber optic device on the docking connector.

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.

The object of the present invention is achieved by the following technical solution: a connector comprising an insulative housing, a conductive terminal held on the insulative housing, a fiber optic device for optical signal transmission, and a spring for resisting the optical fiber device forward And a shielding shell covering the insulative housing, wherein the insulative housing is provided with a receiving slot, and the optical fiber device can slide back and forth in the receiving slot under the spring, wherein the connector further comprises a sleeve disposed on the spring The surrounding sleeve.

The object of the present invention can also be achieved by the following technical solution: a connector comprising an insulative housing, a plurality of conductive terminals, a fiber optic device, a spring, and a shielding housing, the insulating system comprising a main body portion and a front end from the main body portion a front extending tongue plate, a receiving groove and a slot behind the receiving slot are disposed above the tongue plate, a plurality of terminal slots are disposed under the tongue plate, and the conductive terminal is received in the terminal slot, the optical fiber The device can be slid back and forth in the receiving slot by the spring. The optical fiber device includes a base received in the receiving slot and an optical fiber disposed on the base, and the base is provided with a lens optically coupled with the optical fiber. The shielding shell covers the tongue of the insulating body, wherein the connector further comprises a sleeve received in the slot and sleeved outside the spring.

The object of the present invention can also be achieved by adopting the following technical solutions: a connector, which is a USB plug connector, comprising an insulating body, a USB conductive terminal, a fiber optic device, a cable electrically connected to the USB conductive terminal, a spring, and a shielding shell. And an insulating layer covering the rear end of the shielding shell, the insulating body including a main body portion and a tongue extending forward from a front end of the main body portion, and a receiving groove is disposed above the tongue plate, the tongue plate a plurality of terminal slots are disposed, the USB conductive terminals are received in the terminal slots, and the optical fiber device is provided with an optical fiber and can be slid in the front and rear direction in the receiving groove under the resistance of the spring, and the shielding shell is covered and insulated. The tongue of the body, wherein the connector further comprises a sleeve sleeved outside the spring.

Compared with the prior art, the sleeve of the present invention is sleeved on the periphery of the spring. When the fiber optic device slides, the sleeve can prevent the spring from swinging when deformed, so that the elasticity of the spring can be better played and can be effective. Preventing the fiber optic device from being skewed, ensuring that the fiber optic device is reliably docked with the fiber optic device on the docking connector.

100, 100'‧‧‧ connectors

1‧‧‧Insulating body

13‧‧‧ Main body

131‧‧‧Terminal receiving slot

132‧‧‧ containment chamber

14‧‧‧ tongue plate

140‧‧‧second groove

141‧‧‧ Reception trough

142, 142'‧‧‧ slotting

1421'‧‧‧ positioning column

143‧‧‧first groove

144, 144'‧‧‧Depression

1441‧‧‧ round hole

1442‧‧‧through slot

145‧‧ ‧ block

146, 146'‧‧‧Responsible Department

147‧‧‧Bumps

148‧‧‧Terminal slot

10‧‧‧ Cover

101‧‧‧ holding column

102‧‧‧ openings

2‧‧‧Electrical terminals

21‧‧‧First terminal

211‧‧‧ first contact

212‧‧‧First tail

22‧‧‧second terminal

221‧‧‧Second contact

222‧‧‧Second holding unit

223‧‧‧second tail

3‧‧‧Fiber optic devices

30‧‧‧Base

31‧‧‧V-groove

32‧‧‧ lens

34‧‧‧Positioning holes

35‧‧‧Fiber

36‧‧‧Bump

4, 4' ‧ ‧ spring

40, 40'‧‧‧ sleeve

5‧‧‧

51‧‧‧ terminal receiving hole

6‧‧‧ Positioning block

7‧‧‧Shaded housing

71‧‧‧lower shell

72‧‧‧Upper shell

73‧‧‧ top wall

75‧‧‧ bumps

8‧‧‧Outer insulation

9‧‧‧ Cable

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

The second figure is a partial exploded view of the first figure.

The third figure is an exploded perspective view of another angle of the second figure.

The fourth figure is a partial perspective combination of the first figure.

The fifth drawing is a cross-sectional view taken along line V-V in the first figure.

Figure 6 is a perspective assembled view of a second embodiment of the connector of the present invention.

The seventh figure is a partial perspective combination of the sixth figure.

The eighth drawing is a cross-sectional view taken along line VIII-VIII in the sixth drawing.

Referring to the first to third embodiments, a preferred embodiment of the connector 100 of the present invention is a photoelectric plug connector comprising an insulative housing 1 and a plurality of conductive terminals 2 mounted on the insulative housing 1 and disposed in the insulation. The optical fiber device 3 on the main body 1 , the spring 4 clamped between the insulating body 1 and the optical fiber device 3 , the circular sleeve 40 sleeved on the spring 4 , the seat body 5 fixed on the insulating body 1 , and The positioning block 6 is matched with the seat body 5, the shielding shell 7 covering the insulating body 1, the outer insulating layer 8 surrounding the periphery of the shielding shell 7, and the cable 9 electrically connected to the conductive terminal 2. The shielding case 7 includes a lower case 71 and an upper case 72 that are coupled to each other.

Referring to the first to fifth figures, the insulative housing 1 includes a main body portion 13 and a front portion of the main body portion 13 The tongue 14 extends forwardly. A plurality of terminal receiving grooves 131 are formed at the rear end of the upper surface of the insulative housing 1 , and a receiving cavity 132 that is recessed upward is disposed below the main body portion 13 , and the base body 5 is fixed in the receiving cavity 132 . A receiving groove 141 recessed from the front side and a recessed portion 144 recessed from the top and the bottom of the receiving groove 141 are formed above the tongue 14 of the insulating body 1 , and the depth of the recessed portion 144 extending along the vertical direction of the insulating body 1 is smaller than The receiving groove 141. The recessed portion 144 communicates with the receiving groove 141 in the front-rear direction, and the front end of the recessed portion 144 is recessed downwardly to form a through groove 1442 extending through the receiving groove 141 and a plurality of grooves extending through the through groove 1442 and passing through the through groove 1442. An elongated first groove 143. The recessed portion 144 is provided with a slot 142 that is recessed downwardly and penetrates the receiving slot 141 in the front-rear direction at a position intermediate the slot 1442. The recessed portion 144 is provided with a resisting portion 146 at the rear of the slot 142, and the sleeve 40 is received. The sleeve 40 is prevented from moving to the left and right, and the rear end of the sleeve 40 is abutted against the front end of the abutting portion 146 to prevent the sleeve 40 from moving backward. The rear end of the spring 4 is received and fixed to the sleeve. 40 inside. The insulative housing 1 is provided behind the first recess 143 with a second recess 140 extending through the first recess 143 and wider than the first recess 143. The tongue plate 14 extends upwardly at a position intermediate the front end of the receiving groove 141 to form a front wide 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 lower rear side of the tongue plate 14 is formed with a plurality of terminal grooves 148 arranged side by side. 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 provided with a pair of holding posts 101 respectively held in the circular hole 1441. In addition, the front end of the cover plate 10 is recessed rearwardly to define an opening 102 corresponding to the slot 142 for receiving the sleeve 40.

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 includes a flat first contact portion 211 disposed in front of the terminal slot 148 and a first tail portion 212 disposed in the rear terminal receiving groove 131 of the insulative housing 1 to be electrically connected to the cable 9 . 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 10, 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 The 221 are co-located under the tongue plate 14 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.

Referring to the first to fifth figures, 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. The front end of the base 30 is provided with a V-shaped groove 31 which is matched with the stopper block 145 and has a front width and a rear narrow. The susceptor 30 is respectively provided with a pair of lenses 32 on the left and right sides of the V-shaped groove 31. The optical fiber 35 is mounted on the rear end of the lens 32 and optically coupled with the lens 32 to provide high-speed optical signal transmission. 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. A rear end of the base 30 is provided with a protruding post 36. The front end of the spring 4 is fixed to the protruding post 36. The protruding post 36 and the abutting portion 146 clamp the spring 4 to the insulating body 1 and the base 30. Between the push base 30 slides forward.

The optical fibers 35 of the connector 100 of the present invention are respectively accommodated in the first recess 143 and do not move along the lateral direction of the insulative housing 1 , so that the base 30 can be effectively pinned 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. 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 first recess 143, which can effectively prevent the optical fiber 35 from moving downward in the front-rear direction. Lift up. In addition, the optical fiber 35 passes forward through the slot 1442 wider than the first recess 143 to be mounted on the base 30, and passes backward through the second recess 140 wider than the first recess 143 to The cable connection, the through slot 1442 and the second recess 140 provide space for the front end and the rear end of the optical fiber 35 to contract or stretch.

The lower case 71 is combined with the upper case 72 to wrap the insulative body 1 therein to provide a good masking effect. The lower casing 71 is provided with a top wall 73 covering the tongue plate 14. The top wall 73 is located above the slot 142 and the sleeve 40 is pressed downward into the slot 142, and the top wall 73 is integrated downward. The stamping forms a projection 75 that abuts above the fiber optic device 3. When the plug connector 100 of the present invention is inserted into a docking 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 of the positioning hole 34 is 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. Since the sleeve 40 is sleeved on the spring 4, when the fiber optic device 3 slides back and forth under the urging force of the spring 4, the sleeve 40 can prevent the spring 4 from swinging perpendicularly to the front-rear direction when deformed, so that the spring 4 The elasticity is better exerted, and at the same time, the fiber optic device 3 can be effectively prevented from being skewed in the left and right or up and down directions, and the optical fiber device 3 is ensured to be reliably connected to the optical fiber device on the docking connector. In addition, since the spring 4 is housed and held in the sleeve 40, the spring is not required to be fixed by other members, which reduces the manufacturing cost. When the plug connector 100 is pulled out, the base 30 slides forward under the force of the spring 4, and 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 in 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. The front end of the base 30 abuts against the protrusion 147 provided at the front end of the tongue plate 14 to resist the base. The bumps 147 and the protrusions 75 on the 30 can prevent the base 30 from shaking in the up and down direction. As described above, the stoppers 144, the bumps 147 and the protrusions 75 can form abutment against the optical fiber device 3. Holding the member to prevent the fiber optic device 3 from shaking in a direction perpendicular to the front-rear direction, the fiber device 3 is better restored to the original state, thereby facilitating the plug connector to be inserted into the socket again. Connector.

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

6 to 8 show a connector 100' according to a second embodiment of the present invention. In this embodiment, the recessed portion 144' of the insulative housing 1' is provided with a forward projection at the front end of the abutting portion 146'. The rear end of the spring 4' is not only retained in the sleeve 40' but also fixed on the positioning post 1421', so that the rear end of the spring 4' can be securely fixed.

In addition, in other embodiments of the present invention, the sleeve 4 may be not only a circular ring but also a polygonal annular structure.

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

10‧‧‧ Cover

146‧‧‧Resistance Department

22‧‧‧second terminal

30‧‧‧Base

36‧‧‧Bump

4‧‧‧ Spring

40‧‧‧ sleeve

71‧‧‧lower shell

75‧‧‧ bumps

72‧‧‧Upper shell

73‧‧‧ top wall

Claims (27)

A connector includes: an insulative housing; the insulative housing is provided with a receiving slot; the conductive terminal is fixed on the insulative housing; the optical fiber device is configured for optical signal transmission and is received in the receiving slot; the spring is located Behind the fiber optic device, the fiber optic device can slide back and forth in the receiving slot under the spring; the shielding shell covers the insulating body; and the sleeve is sleeved around the spring, and the insulating body is located The rear of the receiving groove accommodates the slot of the sleeve and the abutting portion located at the rear of the slot and abutting against the rear end of the sleeve. The connector of claim 1, wherein the shielding shell is provided with a top wall located above the receiving groove and the slot and biasing the sleeve downwardly into the slot. The connector of claim 1, wherein the insulative housing is provided with a positioning post that protrudes forwardly from the abutting portion into the slot, and the rear end of the spring is fixed to the positioning post. The connector of claim 1, wherein the fiber optic device comprises a base and an optical fiber mounted on the base, the base being provided with a lens optically coupled to the optical fiber and positioning on both sides of the lens a hole that abuts against a rear end of the base. The connector of claim 4, wherein the insulative housing is provided with a recessed portion that is recessed from the top to the bottom and is located behind the receiving slot, and the slot is disposed at a front end of the recessed portion and penetrates the receiving slot. The recessed portion is provided with a first recess for holding the optical fiber. The connector of claim 5, wherein the connector further comprises a cover plate fixed on the recess and pressing the optical fiber against the first groove, the front end of the cover plate corresponding to the slot There is an opening for receiving the sleeve. The connector of claim 4, 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 upwardly with a front wide and a narrow V-shaped stop block. The blocking block abuts in the V-shaped groove rearward and in the left-right direction. The connector of claim 4, wherein the rear end of the base is provided with a post projecting rearward, and the front end of the spring is fixed to the stud. The connector of claim 1, wherein the insulative housing comprises a main body portion and a tongue extending forward from the main body portion, the receiving groove being recessed downward from above the tongue plate. The connector of claim 9, 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 located below the tongue plate a first contact portion, the second terminal including an elastic second contact portion located below the tongue plate and behind the first contact portion. The connector of claim 1, wherein the sleeve has a circular ring structure. The connector of claim 1, wherein the sleeve is a polygonal annular structure. A connector includes: a main body portion and a tongue extending forward from a front end of the main body portion, wherein the tongue plate is provided with a receiving groove and a groove behind the receiving groove, the tongue plate The terminal is provided with a terminal slot; the conductive terminal is received in the terminal slot; the optical fiber device includes a base received in the receiving slot and an optical fiber disposed on the base, and the base is optically coupled to the optical fiber. a lens that is forwardly abutted against the base to slide the base back and forth in the receiving groove; the sleeve is received in the slot and sleeved outside the spring, and the rear end of the spring is fixed to the sleeve The inside of the cylinder; and the shielding shell is a tongue plate covering the insulating body. The connector of claim 13, wherein the shielding shell is provided on the tongue plate Upper and the sleeve is pressed down against the top wall in the slot. The connector of claim 13, wherein the tongue plate is provided at the rear of the slot with abutting portion that abuts against the rear end of the sleeve. The connector of claim 15, wherein the front end of the abutting portion is provided with a positioning post that protrudes forward into the slot, and the rear end of the spring is fixed to the positioning post. The connector of claim 13, 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 tongue extends upwardly with a front wide and a narrow V-shaped stop block. The blocking block abuts in the V-shaped groove rearward and in the left-right direction. The connector of claim 13, wherein the rear end of the base is provided with a post projecting rearward, and the front end of the spring is fixed to the stud. The connector of claim 13, wherein the arrangement of the conductive terminals conforms to the USB 3.0 transmission standard. The connector of claim 13, wherein the sleeve has a circular ring structure. The connector of claim 13, wherein the sleeve is a polygonal annular structure. A connector is a USB plug connector, comprising: an insulative housing, comprising a main body portion and a tongue extending forward from a front end of the main body portion, wherein the tongue plate is provided with a receiving groove above the tongue plate a terminal slot; a USB conductive terminal is received in the terminal slot; the optical fiber device is received in the receiving slot and is provided with an optical fiber; the cable is electrically connected to the USB conductive terminal; and the spring device can be The spring slides in the front and rear direction in the receiving groove; the sleeve is sleeved outside the spring; the shielding shell covers the tongue of the insulating body, and the tongue plate is provided with a receiving sleeve at the rear of the receiving groove The slot of the sleeve and the abutting portion of the sleeve at the rear end of the slot and forwardly abutting the sleeve; and the outer insulating layer covers the rear end of the shield shell. The connector of claim 22, wherein the rear end of the spring is fixed within the sleeve. The connector of claim 22, wherein the shielding housing is provided with a top wall positioned above the tongue and biasing the sleeve downwardly within the slot. The connector of claim 22, wherein the tongue plate is provided with a positioning post that protrudes forward from the abutting portion into the slot, and the rear end of the spring is fixed to the positioning post. The connector of claim 22, wherein the sleeve is a circular ring structure. The connector of claim 22, wherein the sleeve is a polygonal annular structure.