Vehicle-mounted optical fiber connector

Abstract

The utility model relates to a vehicle-mounted optical fiber connector, which comprises a connector plug and a connector socket, and is characterized in that the connector plug comprises a plug shell, a hole seat is arranged at the front part of an inner cavity of the plug shell and is provided with an elastic plug insertion core, and the rear end of the inner cavity of the plug shell is connected with a plug positioning buckle; a connecting elastic buckle clamped with the connector socket is arranged on the plug shell, the connector socket comprises a socket shell, a hole seat is arranged at the front part of an inner cavity of the socket shell and is provided with an elastic socket insertion core, and the rear end of the inner cavity of the socket shell is connected with a socket positioning buckle; and a lock catch is arranged at the upper end of the front part of the inner cavity of the socket shell and is matched with the connecting elastic buckle of the plug shell. The optical fiber connector is stable and firm in connection performance and strong in vibration resistance, can effectively meet the dynamic vibration requirement of an automobile, ensures that the optical fiber does not generate relative dislocation during dynamic vibration, and ensures normal and stable operation of a communication link.

Description

Technical Field

[0001] The utility model relates to a vehicle-mounted optical fiber connector, belonging to the technical field of communication transmission connection appliances. Background Art

[0002] With the integration of more and more high-definition video services and sensors into the vehicle-mounted network, a data transmission rate of up to 10 Gbit / s and higher is the future development trend. For data transmission rates exceeding 10 Gbit / s, graded multimode optical fibers such as OM1, OM2, OM3, and OM4 need to be used. Correspondingly, a new round of "optical fiber in and copper out" in the automotive field is about to start. Existing optical fiber connectors are generally installed in relatively static indoor and outdoor environments such as data centers, and their structural performance is difficult to meet the requirements of dynamic vibration and miniaturization in the automotive environment. Summary of the Invention

[0003] The technical problem to be solved by the utility model is to provide a vehicle-mounted optical fiber connector aiming at the deficiencies of the above-mentioned existing technologies. It not only has reliable connection performance and can adapt to the dynamic vibration environment of the vehicle, but also has a reasonable and compact structural design.

[0004] The technical solution adopted by the utility model to solve the above-mentioned problems is as follows:

[0005] It includes a connector plug and a connector socket, characterized in that the connector plug includes a plug housing. A hole seat is arranged in the front part of the inner cavity of the plug housing and is configured with an elastic plug ferrule. The rear end of the elastic plug ferrule is connected to a plug positioning buckle, and the rear end of the plug positioning buckle is connected to an optical cable joint. A connection spring buckle for clamping with the connector socket is arranged on the upper surface of the plug housing. The connector socket includes a socket housing. A hole seat is arranged in the front part of the inner cavity of the socket housing and is configured with an elastic socket ferrule. The rear end of the elastic socket ferrule is connected to a socket positioning buckle, and the rear end of the socket positioning buckle is connected to an optical cable joint. A lock catch is arranged at the upper end of the front part of the inner cavity of the socket housing and is configured with the connection spring buckle of the plug housing.

[0006] According to the above scheme, the plug positioning buckle is matched with the clamping holes on both sides of the plug housing through the elastic buckles at the front ends of both sides, and the socket positioning buckle is matched with the clamping holes on both sides of the socket housing through the elastic buckles at the front ends of both sides.

[0007] According to the above scheme, the elastic plug ferrule includes a plug ferrule. A return spring is sleeved behind the plug ferrule. The plug ferrule includes a ceramic ferrule and a metal sleeve fixedly connected to the rear end of the ceramic ferrule. A sealing ring is arranged outside the metal sleeve, and the rear end of the metal sleeve is sleeved with the return spring.

[0008] According to the above solution, the elastic socket insert core includes a socket insert core, with a return spring sleeved behind the socket insert core. The socket insert core includes an insert core sleeve and a metal nesting fixedly connected to the rear end of the insert core sleeve. A ceramic insert core is installed inside the insert core sleeve, and a sealing ring is installed outside the metal nesting. The rear end of the metal nesting is sleeved with the return spring.

[0009] According to the above solution, a sealing washer configured with the front end face of the connector plug is installed at the front end of the hole seat in the front part of the inner cavity of the socket housing.

[0010] According to the above solution, the transverse cross-section of the plug housing is rectangular, divided into two parts with a smaller front part and a larger rear part. The width of the front part is smaller and is the insertion end. On both sides of the upper surface of the plug housing, there are convex platforms extending backward. In the middle of the upper surface of the insertion end, a connecting spring buckle inclined backward and upward is installed. The hole seat provided in the front part of the inner cavity of the plug housing is a stop through hole, and an elastic plug insert core is inserted through the stop through hole. The rear part of the inner cavity of the plug housing is a rectangular cavity, and clamping holes are provided on both side walls. Elastic buckles are provided on both sides of the plug positioning buckle and are clamped with the clamping holes.

[0011] According to the above solution, the plug positioning buckle includes a stop block. On both sides of the front surface of the stop block, elastic buckles extending forward are provided. Spring seats are provided at the front ends of the elastic buckles, and the two sides are outwardly convex clamping claws. A fiber optic through hole is provided in the middle of the two elastic buckles. A wire loop joint is provided at the rear end of the stop block.

[0012] According to the above solution, a locking slider is installed on the upper surface of the plug housing. The locking slider is configured with the sliding grooves on both sides. The locking slider moves forward to the lower part of the connecting spring buckle to lock the connecting spring buckle, and unlocks when it moves backward.

[0013] According to the above solution, the transverse cross-section of the socket housing is rectangular. An insertion hole cavity is provided in the front part of the inner cavity of the socket housing. A groove configured with the insertion end and a buckle configured with the connecting spring buckle are provided on the upper surface of the insertion hole cavity. The hole seat provided behind the insertion hole cavity is a stop through hole, and an elastic socket insert core is inserted through the stop through hole. The rear part of the inner cavity of the socket housing is a rectangular cavity, and clamping holes are provided on both side walls. Elastic buckles are provided on both sides of the socket positioning buckle and are clamped with the clamping holes.

[0014] According to the above solution, a connecting slide rail or a sliding groove is provided on the lower outer surface of the socket housing.

[0015] According to the above solution, the socket positioning buckle includes a stop block. On both sides of the front surface of the stop block, elastic buckles extending forward are provided. The two sides at the front ends of the elastic buckles are outwardly convex clamping claws. A spring seat is provided in the middle of the two elastic buckles, and a fiber optic through hole is provided in the middle of the spring seat. A wire loop joint is provided at the rear end of the stop block.

[0016] According to the above solution, the optical cable joint includes a crimping ring sleeve connected to the wire loop joint, and the outside of the crimping ring sleeve is fitted with a tail sleeve.

[0017] According to the above solution, the connector plug and the connector socket are respectively provided with 2 or 4 elastic plug cores and 2 or 4 elastic socket cores, constituting a 2-core or 4-core optical fiber connector.

[0018] When the utility model is in use, the optical fibers are respectively inserted into the plug cores and the socket cores. The cores are positioned in the plug housing and the socket housing through the plug positioning buckle, the socket positioning buckle and the return spring. Then, the connector plug is inserted into the connector socket, and the two are locked through the connecting spring buckle and the lock buckle, thus completing the butt joint of the optical fibers.

[0019] The beneficial effects of the utility model are as follows: 1. The connection performance is stable and reliable, and the anti-vibration performance is strong. It can effectively meet the requirements of automotive dynamic vibration, ensure that the optical fibers do not produce relative dislocation during dynamic vibration, and ensure the normal and stable operation of the communication link. And by setting the elastic core structure, the butt-jointed optical fibers can be kept in gapless contact, improving the data transmission efficiency. 2. Both the plug and the socket adopt a three-piece structure of a housing, an elastic core and a positioning buckle. The structure design is reasonable and compact, the use and connection are convenient, and it is also convenient for miniaturization, which can meet the requirements of the narrow installation space in the automobile. 3. Sealing structures are respectively arranged on the butt joint end faces of the elastic core and the plug and socket, forming two sealing structures, which can effectively prevent the infiltration of water vapor and keep the optical fiber connector in good sealing performance. Description of the Drawings

[0020] Figure 1 It is a three-dimensional overall structure diagram of the butt joint state of an embodiment of the utility model.

[0021] Figure 2 It is a three-dimensional structure diagram of the connector plug in an embodiment of the utility model.

[0022] Figure 3 It is a three-dimensional structure diagram of the connector socket in an embodiment of the utility model.

[0023] Figure 4 It is an exploded structure diagram of an embodiment of the utility model.

[0024] Figure 5 、 Figure 6 They are respectively the side view and the front view three-dimensional diagrams of the plug housing in an embodiment of the utility model.

[0025] Figure 7 、 Figure 8 They are respectively the side view and the front view three-dimensional diagrams of the socket housing in an embodiment of the utility model.

[0026] Figure 9 It is a structure diagram of the plug core (left) and the socket core (right) in an embodiment of the utility model.

[0027] Figure 10This is a three-dimensional structure diagram of the plug positioning buckle in an embodiment of the present utility model.

[0028] Figure 11 This is a three-dimensional structure diagram of the socket positioning buckle in an embodiment of the present utility model. Detailed implementation manners

[0029] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] As shown in the accompanying drawings, an embodiment of the present utility model includes a connector plug 1 and a connector socket 2. The connector plug includes a plug housing 11. An orifice seat is arranged at the front part of the inner cavity of the plug housing and is configured with an elastic plug insert core. The rear end of the elastic plug insert core is connected to a plug positioning buckle 15. The plug positioning buckle is engaged with the clamping holes on both sides of the plug housing through the elastic buckles at the front ends of both sides. The transverse cross-section of the plug housing is rectangular, divided into two parts with a smaller front part and a larger rear part. The width of the front part is smaller and is the insertion end. On both sides of the upper surface of the plug housing, there are convex platforms extending backward. In the middle of the upper surface of the insertion end, there is a connecting spring buckle 111 that slopes backward and upward for engaging with the connector socket. The orifice seat arranged in the front part 113 of the inner cavity of the plug housing is a stop through hole, and the elastic plug insert core is inserted through the stop through hole. The elastic plug insert core includes a plug insert core 13, and a return spring 14 is sleeved behind the plug insert core. The plug insert core includes a ceramic insert core 131 and a metal sleeve 132 fixedly connected to the rear end of the ceramic insert core. A sealing ring 133 is arranged outside the metal sleeve, and the sealing ring is configured with the rear end face of the stop through hole. The rear end of the metal sleeve is sleeved with the return spring; the rear part of the inner cavity of the plug housing is a rectangular cavity, and clamping holes 114 are arranged on both side walls. Elastic buckles are arranged on both sides of the plug positioning buckle and are engaged with the clamping holes. The plug positioning buckle includes a stop block 154. Elastic buckles 152 extending forward are arranged on both sides of the front surface of the stop block. Spring seats are arranged at the front ends of the elastic buckles, and the two sides are outwardly convex claw 151 for engaging with the clamping holes. A fiber optic through hole 153 is arranged in the middle of the two elastic buckles. A wire loop joint 155 is arranged at the rear end of the stop block. The wire loop joint of the plug positioning buckle is connected to the optical cable joint. The optical cable joint includes a crimping ring sleeve 16 connected to the wire loop joint, and the outer part of the crimping ring sleeve is embedded with a tail sleeve 17. The connector socket includes a socket housing 21. An orifice seat is arranged at the front part of the inner cavity of the socket housing and is configured with an elastic socket insert core. The rear end of the elastic socket insert core is connected to a socket positioning buckle 24. The socket positioning buckle is engaged with the clamping holes on both sides of the socket housing through the elastic buckles at the front ends of both sides. The transverse cross-section of the socket housing is rectangular. An insertion hole cavity 212 is arranged at the front part of the inner cavity of the socket housing. A groove configured with the plug insertion end and a lock catch 211 configured with the connecting spring buckle are arranged on the upper surface of the insertion hole cavity. After the plug is inserted into the socket in place, the connecting spring buckle springs up and snaps into the lock catch, thus locking and positioning the two.The hole seat arranged behind the insertion cavity is a stop hole, and an elastic socket plug is inserted in the stop hole. The elastic socket plug includes a socket plug 23, and a return spring 14 is arranged behind the socket plug. The socket plug includes a plug sleeve 232 and a metal nesting 233 fixedly connected to the rear end of the plug sleeve. A ceramic plug 231 is arranged inside the plug sleeve, and a sealing ring 234 is arranged outside the metal nesting. The sealing ring is configured with the rear end surface of the stop hole. When the socket plug is docked with the plug plug, the ceramic plug 131 of the plug plug is inserted into the plug sleeve 232 and docked with the ceramic plug 231, and the rear end of the metal nesting is sleeved with the return spring; the rear part of the inner cavity of the socket housing is a rectangular cavity and a clamping hole 213 is arranged on both side walls, and elastic clamps are arranged on both sides of the socket positioning buckle to clamp with the clamping hole. A connecting slide rail or slide groove 214 is arranged on the outer bottom of the socket housing for connecting with the fixed seat on the vehicle. The socket positioning buckle includes a stopper block 243, and elastic buckles 244 extending forward are arranged on both sides of the front of the stopper block. The front sides of the elastic buckle are protruding claws 245, which are engaged with the clamping hole. A spring seat 241 is arranged in the middle of the two elastic buckles, and an optical fiber through hole 242 is arranged in the middle of the spring seat. A wire ring joint is arranged at the rear end of the stopper block. The socket positioning card is connected to the optical cable connector through a buckle wire ring joint. The optical cable connector includes a crimping ring sleeve 16 connected to the wire ring joint, and the outer side of the crimping ring sleeve is engaged with the tail sleeve 17. In addition, a sealing gasket 22 configured with the front end surface of the connector plug is arranged at the front end of the hole seat in the front part of the inner cavity of the socket housing. The inner cavity of the plug and the socket is further sealed and isolated from the outside. The connector plug and the connector socket described in this embodiment are respectively equipped with two elastic plug cores and two elastic socket cores on the left and right sides to form a 2-core vehicle-mounted optical fiber connector.

[0031] Another embodiment of the utility model is different in that a locking slider 12 is installed on the plug housing, and the locking slider is configured with the slide grooves on both sides. The locking slider moves forward to the bottom of the connection spring buckle 111 to lock the connection spring buckle so that it cannot be pressed down, so that the connection spring buckle is snapped into the lock buckle more securely, further enhancing the reliability of the connection, and the locking slider moves backward to unlock. In addition, a plug dust cap 18 can be configured at the plug end, and a socket dust cap 25 can be configured at the socket end. The other structures are the same as the previous embodiment.

Claims

1. A vehicle-mounted optical fiber connector, comprising a connector plug and a connector socket, characterized in that The connector plug comprises a plug housing, a hole seat is arranged at the front of the inner cavity of the plug housing and is equipped with an elastic plug core, the rear end of the elastic plug core is connected to the plug positioning buckle, the rear end of the plug positioning buckle is connected to the optical cable connector, and a connecting spring buckle which is engaged with the connector socket is arranged on the top of the plug housing. The connector socket comprises a socket housing, a hole seat is arranged at the front of the inner cavity of the socket housing and is equipped with an elastic socket core, the rear end of the elastic socket core is connected to the socket positioning buckle, the rear end of the socket positioning buckle is connected to the optical cable connector, and a lock is arranged at the upper end of the front inner cavity of the socket housing and is equipped with the connecting spring buckle of the plug housing.

2. The vehicle-mounted optical fiber connector according to claim 1, characterized in that The plug positioning buckle is matched with the clamping holes on both sides of the plug housing through the elastic clamping buckles at the front ends of both sides, and the socket positioning buckle is matched with the clamping holes on both sides of the socket housing through the elastic clamping buckles at the front ends of both sides.

3. The vehicle-mounted optical fiber connector according to claim 1 or 2, characterized in that The elastic plug ferrule comprises a plug ferrule, a return spring is mounted at the rear of the plug ferrule, the plug ferrule comprises a ceramic ferrule and a metal nesting fixedly connected to the rear end of the ceramic ferrule, a sealing ring is arranged outside the metal nesting, and the rear end of the metal nesting is sleeved with the return spring; the elastic socket ferrule comprises a socket ferrule, a return spring is mounted at the rear of the socket ferrule, the socket ferrule comprises a ferrule sleeve and a metal nesting fixedly connected to the rear end of the ferrule sleeve, a ceramic ferrule is arranged inside the ferrule sleeve, a sealing ring is arranged outside the metal nesting, and the rear end of the metal nesting is sleeved with the return spring.

4. The vehicle-mounted optical fiber connector according to claim 1 or 2, characterized in that A sealing gasket configured with the front end surface of the connector plug is arranged at the front end of the hole seat at the front end of the inner cavity of the socket housing.

5. The vehicle-mounted optical fiber connector according to claim 1 or 2, characterized in that The transverse cross-section of the plug shell is rectangular, and is divided into two parts, a small front part and a large rear part. The front part with a smaller width is the insertion end. Bosses extending backwards are provided on both sides of the upper side of the plug shell. A connecting spring buckle inclined backwards and upwards is arranged in the middle of the upper side of the insertion end. The hole seat provided at the front part of the inner cavity of the plug shell is a stop through hole, and an elastic plug core is passed through the stop through hole. The rear part of the inner cavity of the plug shell is a rectangular cavity and card holes are provided on both side walls. Elastic card buckles are provided on both sides of the plug positioning card buckle to be engaged with the card holes.

6. The vehicle-mounted optical fiber connector according to claim 1 or 2, characterized in that The plug positioning buckle includes a stop block, with elastic buckles extending forward arranged on both sides of the front of the stop block, a spring seat arranged at the front end of the elastic buckle, protruding claws on both sides, an optical fiber through hole in the middle of the two elastic buckles, and a wire ring connector arranged at the rear end of the stop block.

7. The vehicle-mounted optical fiber connector according to claim 5, characterized in that A locking slider is arranged on the plug housing and is configured with the slide grooves on both sides. The locking slider moves forward to below the connecting spring buckle to lock the connecting spring buckle, and moves backward to unlock.

8. The vehicle-mounted optical fiber connector according to claim 1 or 2, characterized in that The socket shell has a rectangular transverse cross-section, an insertion hole is provided at the front of the inner cavity of the socket shell, a groove configured with the insertion end and a buckle configured with the connecting spring buckle are provided on the insertion hole, a hole seat arranged at the rear of the insertion hole is a stop through hole, an elastic socket core is passed through the stop through hole, the inner cavity rear part of the socket shell is a rectangular cavity and clamping holes are provided on both side walls, and elastic buckles are arranged on both sides of the socket positioning buckle to be clamped with the clamping holes.

9. The vehicle-mounted optical fiber connector according to claim 1 or 2, characterized in that The socket positioning buckle includes a stop block, and elastic buckles extending forward are arranged on both sides of the front of the stop block, and the front sides of the elastic buckle are protruding claws. A spring seat is arranged in the middle of the two elastic buckles, and an optical fiber through hole is opened in the middle of the spring seat. A wire ring connector is arranged at the rear end of the stop block.

10. The vehicle-mounted optical fiber connector according to claim 1 or 2, characterized in that The optical cable joint comprises a crimping sleeve connected to the wire ring joint, and the outer part of the crimping sleeve is embedded in the tail sleeve; a connecting slide rail or a slide groove is arranged on the outer bottom of the socket shell; the connector plug and the connector socket are respectively provided with 2 or 4 elastic plug cores and 2 or 4 elastic socket cores, forming a 2-core or 4-core optical fiber connector.

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