Wire end assembly and photoelectric connector

Abstract

A board end assembly and the line end assembly are connected in an inserted mode, the line end assembly comprises a head seat, a line end base and an optical fiber assembly, the optical fiber assembly is provided with a limiting ring, the limiting ring is provided with a flat face, the head seat is provided with a stepped through hole, a large hole of the stepped through hole is provided with a flat side wall, and the flat side wall is provided with a flat face. The front end portion of the optical fiber assembly penetrates out of the stepped through hole, the limiting ring is installed in a large hole of the stepped through hole in a matched mode, the rear end portion of the optical fiber assembly is installed on the wire end base, and the headstock is detachably connected with the wire end base. The beneficial effects of the utility model are that through the detachable installation of the headstock and the wire end assembly, the optical fiber assembly is convenient to disassemble and assemble, and at the same time, the limiting ring on the optical fiber assembly is matched with the large hole of the stepped through hole, after the optical fiber assembly is installed, the axial precision of the optical fiber assembly can be ensured, and the circumferential rotation of the optical fiber assembly can be avoided. Therefore, the centering precision of the optical fiber assembly can still be ensured under the condition that the optical fiber assembly can be quickly disassembled and assembled.

Description

Technical Field

[0001] This utility model relates to connectors, and more particularly to a wire end assembly and an optoelectronic connector. Background Technology

[0002] Fiber optic contacts require a high degree of alignment, especially when used under vibration conditions. For automotive connectors, optoelectronic connectors are used in long-term vibration environments, making the alignment requirements for contacts even more critical. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a wire end assembly and an optoelectronic connector.

[0004] The purpose of this utility model is achieved through the following technical solution: a line end assembly, including a head base, a line end base, and an optical fiber assembly. A limiting ring is provided on the optical fiber assembly, and a flat surface is opened on the limiting ring. A stepped through hole is opened on the head base, and a flat sidewall is provided on the large hole of the stepped through hole. The front end of the optical fiber assembly passes through the stepped through hole, and the limiting ring is fitted and installed in the large hole of the stepped through hole. The rear end of the optical fiber assembly is installed on the line end base, and the head base and the line end base are detachably connected.

[0005] Optionally, the rear end face of the head base is provided with a pair of insertion parts, the insertion parts extend rearward, and the rear end of the insertion parts bends outward to form an elastic locking arm. The elastic locking arm extends backward at an angle, and there is an accommodating gap between the end of the elastic locking arm and the rear end face of the head base. The front end face of the wire end base is provided with a socket corresponding to the insertion part, and the outer side wall of the wire end base is provided with a lateral opening. The lateral opening communicates with the socket, and the front end face of the lateral opening forms a stop end face. The column between the stop end face and the front end face of the wire end base forms a prism. The insertion part is inserted into the socket, and the prism is located in the accommodating gap. The front end face of the elastic locking arm abuts against the stop end face.

[0006] Optionally, a positioning hole is provided on the front end face of the line end base, and a rearward protruding positioning post is provided on the rear end face of the head base. The positioning post is installed in the positioning hole, and an axial venting groove is provided on the outer side wall of the positioning post.

[0007] An optoelectronic connector includes a board-end assembly and a wire-end assembly. The board-end assembly includes an optical module, a cover plate, and a board-end base. The optical module is mounted on the board-end base and fixed by the cover plate mounted on the board-end base. The board-end assembly and the wire-end assembly are connected by mating. A head is mounted inside the board-end base. The pins of the optical fiber assembly are mated with the jacks of the optical module.

[0008] Optionally, the rear end of the plate base has an insertion cavity, and the head seat has a groove. A first elastic damping sealing ring is installed on the groove. The head seat is located in the insertion cavity, and the contact area between the head seat and the side wall of the insertion cavity is sealed by the first elastic damping sealing ring.

[0009] Optionally, the optical module has an inverted L-shaped structure, with a pair of rearward protruding columns arranged on the stepped surface of the optical module. The columns have pin holes, and a socket assembly is installed in the pin holes. The front end of the board base has a mounting groove that matches the optical module. The stepped surface of the mounting groove has a limit hole. The columns are installed in the limit hole, and the front end of the optical module is abutted by the cover plate.

[0010] Optionally, the two columns are connected by a connecting rib, and a receiving groove for accommodating the connecting rib is provided on the stepped surface of the mounting groove.

[0011] Optionally, a slot is provided at the front edge of the cover plate, and a locking block corresponding to the slot is provided on the side wall of the mounting slot. The front face of the locking block is provided with a guide slope to facilitate the extrusion of the cover plate.

[0012] Optionally, the top of the cover plate is also provided with a rearward-extending elastic arm, the rear end of which is provided with a latch. A guide groove is provided on the top wall of the mounting groove, and a locking hole communicating with the guide groove is provided on the plate end base. The latch is engaged in the locking hole.

[0013] This utility model has the following advantages:

[0014] 1. The wire end assembly of this utility model makes it easy to disassemble and assemble the optical fiber assembly by detaching the head base and the wire end assembly. At the same time, the limiting ring on the optical fiber assembly matches the large hole of the stepped through hole. After the optical fiber assembly is installed, it can ensure the axial accuracy of the optical fiber assembly and prevent the circumferential rotation of the optical fiber assembly. Thus, the optical fiber assembly can be quickly disassembled and assembled while still ensuring its alignment accuracy.

[0015] 2. An elastic shock-absorbing sealing ring is installed on the headstock to mitigate the vibration of the fiber optic assembly in the vehicle's vibration environment. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of this utility model;

[0017] Figure 2 This is a schematic diagram of the wire-end assembly.

[0018] Figure 3 for Figure 2 Schematic diagram of the cross section of AA;

[0019] Figure 4 for Figure 2 Cross-sectional view of BB;

[0020] Figure 5 This is a schematic diagram of the headstock structure;

[0021] Figure 6 This is a schematic diagram of the structure of the line end base;

[0022] Figure 7 This is a schematic diagram of the fiber optic assembly.

[0023] Figure 8 This is a schematic diagram of the structure of the plate end base;

[0024] Figure 9 This is a schematic diagram of the optical module structure;

[0025] Figure 10 This is a schematic diagram of the cover plate.

[0026] In the diagram, 100-line end assembly, 200-board end assembly, 10-head base, 20-line end base, 30-fiber optic assembly, 40-board end base, 50-cover plate, 60-optical module, 11-insertion part, 12-elastic locking arm, 13-positioning post, 14-venting groove, 15-stepped through hole, 16-flat sidewall, 17-first elastic shock-absorbing sealing ring, 21-insertion hole, 22-lateral opening, 23-positioning hole, 24-second elastic shock-absorbing sealing ring, 25-anti-reverse end face, 26-prism, 31-limiting ring, 32-flat surface, 41-mounting groove, 42-limiting hole, 43-guide groove, 44-locking hole, 45-locking block, 46-accommodating groove, 51-slot, 52-elastic arm, 53-locking buckle, 61-pillar, 62-pin hole, 63-connecting rib. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can typically be arranged and designed in various different configurations.

[0028] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0029] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0030] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use, or the orientation or positional relationship commonly understood by those skilled in the art. They are only used for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0032] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0033] like Figure 1 As shown, an optoelectronic connector includes a board-end assembly 200 and a wire-end assembly 100. In this embodiment, the board-end assembly 200 and the wire-end assembly 100 are mated together to achieve signal transmission.

[0034] In this embodiment, as Figure 2 , Figure 3 and Figure 4 As shown, the cable termination assembly 100 includes a headstock 10, a cable termination base 20, and an optical fiber assembly 30. Furthermore, the headstock 10 has a rectangular cross-section, and the optical fiber assembly 30 is an existing product, such as... Figure 7As shown, a limiting ring 31 is provided on the optical fiber assembly 30, and a flat surface 32 is provided on the limiting ring 31. A stepped through hole 15 is provided on the headstock 10, and a flat sidewall 16 is provided on the large hole of the stepped through hole 15. The front end of the optical fiber assembly 30 passes through the stepped through hole 15, and the limiting ring 31 is fitted into the large hole of the stepped through hole 15. The rear end of the optical fiber assembly 30 is installed on the line end base 20, and the headstock 10 and the line end base 20 are detachably connected. During installation, the front end of the optical fiber assembly 30 is first passed through the stepped through hole 15. The fiber optic assembly 30 is inserted into the through hole 15, allowing the front end of the fiber optic assembly to pass through the stepped through hole 15. The limiting ring 31 is matched with the large hole of the stepped through hole 15. In other words, the flat surface 32 on the limiting ring 31 fits against the flat sidewall 16, thereby preventing the fiber optic assembly 30 from rotating in the circumferential direction. After the headstock 10 and the line end base 20 are installed, the rear end of the fiber optic assembly 30 is installed in the line end base 20. At this time, the limiting ring 31 abuts against the front end face of the line end base 20, thereby preventing the fiber optic assembly 30 from moving axially.

[0035] In this embodiment, as Figure 5 As shown, a pair of insertion portions 11 are provided on the rear end face of the head base 10. The insertion portions 11 extend rearward, and the rear end of the insertion portions 11 bends outward to form an elastic locking arm 12. The elastic locking arm 12 extends obliquely rearward, and there is an accommodating gap between the end of the elastic locking arm 12 and the rear end face of the head base 10. A socket 21 corresponding to the insertion portion 11 is provided on the front end face of the wire end base 20. A lateral opening 22 is provided on the outer side wall of the wire end base 20. The lateral opening 22 communicates with the socket 21, and the front end face of the lateral opening 22 forms a stop end face 25. The column 61 between the stop end face 25 and the front end face of the wire end base 20 forms a prism 26. The insertion portion 11 is inserted into the socket 21, and the prism 26 is located in the accommodating gap. Within the gap, the front end face of the elastic locking arm 12 abuts against the anti-retraction end face 25. During installation, the insertion part 11 is inserted into the insertion hole 21. At this time, the prism 26 will squeeze the elastic locking arm 12, causing the elastic locking arm 12 to generate an elastic restoring force. After the elastic locking arm 12 passes the prism 26, the elastic locking arm 12 returns to its original position under the action of the elastic restoring force. At this time, the front end face of the elastic locking arm 12 abuts against the anti-retraction end face 25, and the rear end face of the head seat 10 also abuts against the front end face of the wire end base 20, thereby realizing the installation of the head seat 10 and the wire end base 20. During disassembly, it is only necessary to press the elastic locking arm 12 to make the elastic locking arm 12 disengage from the anti-retraction end face 25, and then pull the head seat 10 and the wire end base 20 apart.

[0036] In this embodiment, as Figure 6As shown, a positioning hole 23 is provided on the front end face of the line end base 20, and a rearwardly protruding positioning post 13 is provided on the rear end face of the head base 10. The positioning post 13 is installed in the positioning hole 23, and an axial exhaust groove 14 is provided on the outer side wall of the positioning post 13. Through the cooperation between the positioning hole 23 and the positioning post 13, the installation accuracy of the head base 10 and the line end base 20 can be guaranteed. By setting the exhaust groove 14, and the exhaust groove 14 axially penetrating the entire positioning post 13, the exhaust groove 14 can discharge gas during the cooperation between the positioning post 13 and the positioning hole 23, so that the cooperation between the positioning post 13 and the positioning hole 23 will not be affected by air resistance.

[0037] In this embodiment, as Figure 1 As shown, the board-end assembly 200 includes an optical module 60, a cover plate 50, and a board-end base 40. The optical module 60 is mounted on the board-end base 40 and fixed by the cover plate 50 mounted on the board-end foundation. The board-end assembly 200 and the line-end assembly 100 are connected by insertion, and the headstock 10 is installed inside the board-end base 40. The pins of the fiber optic assembly 30 are inserted into the jack assembly of the optical module 60. Further, as... Figure 9 As shown, the optical module 60 has an inverted L-shaped structure. Pairs of rearwardly protruding pillars 61 are arranged on the stepped surface of the optical module 60. Pin holes 62 are provided on the pillars 61, and a socket assembly is installed within the pin holes 62. Figure 8 As shown, the front end of the plate base 40 is provided with a mounting groove 41 that matches the optical module 60. That is to say, the mounting groove 41 also has a stepped surface. A limiting hole 42 is provided on the stepped surface of the mounting groove 41. The column 61 is installed in the limiting hole 42, and the front end of the optical module 60 is abutted by the cover plate 50. During installation, the optical module 60 is placed in the mounting groove 41, and the column 61 is aligned with the limiting hole 42. Then the column 61 is pushed into the limiting hole 42, so that the stepped surface on the optical module 60 fits with the stepped surface on the mounting groove 41. After the optical module 60 is installed, the cover plate 50 is installed. After the cover plate 50 is installed, the optical module 60 cannot move axially.

[0038] In this embodiment, as Figure 9 As shown, the two columns 61 are connected by a connecting rib 63, and a receiving groove 46 for accommodating the connecting rib 63 is provided on the stepped surface of the mounting groove 41.

[0039] In this embodiment, as Figure 10As shown, a slot 51 is provided on the front edge of the cover plate 50, and a locking block 45 corresponding to the slot 51 is provided on the side wall of the mounting groove 41. The front end face of the locking block 45 is provided with a guide slope to facilitate the pressing and passing of the cover plate 50. Furthermore, an elastic arm 52 extending backward is provided on the top of the cover plate 50, and a latch 53 is provided at the rear end of the elastic arm 52. A guide groove 43 is provided on the top wall of the mounting groove 41, and a locking hole 4 communicating with the guide groove 43 is provided on the plate end base 40. 4. The latch 53 is fastened in the lock hole 44. During installation, the elastic arm 52 is aligned with the guide groove 43, and then a pushing force is applied to the cover plate 50. When the guide slope contacts the cover plate 50, the front end of the line end base 20 is deformed so that the cover plate 50 can pass over the locking block 45. After the cover plate 50 passes over the locking block 45, the locking block 45 is stuck in the slot 51, and at this time the latch 53 is also fastened in the lock hole 44. The cover plate 50 is in close contact with the end face of the optical module 60.

[0040] In this embodiment, the rear end of the plate base 40 has an insertion cavity, such as... Figure 5 As shown, a groove is provided on the head base 10, and a first elastic damping sealing ring 17 is installed on the groove. The head base 10 is located in the mating cavity, and the contact area between the head base 10 and the side wall of the mating cavity is sealed by the first elastic damping sealing ring 17. Therefore, when the board end base 40 and the wire end base 20 are mated, the gap between the head base 10 and the mating cavity is sealed by the first elastic damping sealing ring 17. Since the first elastic damping sealing ring 17 is a rubber elastic element, it can also play a role in vibration damping. Furthermore, after the board end assembly 200 and the wire end assembly are mated, part of the board end base 40 is also located in the mating cavity. Therefore, a second elastic damping sealing ring 24 is also installed on the board end base 40. The contact area between the wire end base 20 and the side wall of the mating cavity is sealed by the second elastic damping sealing ring 24. Therefore, the vibration resistance of the connector can be increased by the first elastic damping sealing ring 17 and the second elastic damping sealing ring 24.

[0041] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A wire end assembly, characterized in that: The device includes a headstock, a line end base, and an optical fiber assembly. The optical fiber assembly is provided with a limiting ring, and the limiting ring has a flat surface. The headstock has a stepped through hole, and the larger hole of the stepped through hole has a flat sidewall. The front end of the optical fiber assembly passes through the stepped through hole, and the limiting ring is fitted into the larger hole of the stepped through hole. The rear end of the optical fiber assembly is mounted on the line end base, and the headstock and the line end base are detachably connected.

2. A wire end assembly according to claim 1, characterized in that: The head base has a pair of insertion portions on its rear end face. The insertion portions extend rearward, and the rear end of the insertion portions bends outward to form an elastic locking arm. The elastic locking arm extends obliquely rearward, and there is an accommodating gap between the end of the elastic locking arm and the rear end face of the head base. The front end face of the wire end base has a socket corresponding to the insertion portion. The outer side wall of the wire end base has a lateral opening that communicates with the socket. The front end face of the lateral opening forms a backstop end face. The column between the backstop end face and the front end face of the wire end base forms a prism. The insertion portion is inserted into the socket, and the prism is located within the accommodating gap. The front end face of the elastic locking arm abuts against the backstop end face.

3. A wire end assembly according to claim 2, characterized in that: The front end base has a positioning hole, and the rear end base has a rearward protruding positioning post. The positioning post is installed in the positioning hole, and an axial venting groove is provided on the outer side wall of the positioning post.

4. An optoelectronic connector, characterized in that: The device includes a board-end assembly and a line-end assembly as described in any one of claims 1 to 3. The board-end assembly includes an optical module, a cover plate, and a board-end base. The optical module is mounted on the board-end base and fixed by the cover plate mounted on the board-end base. The board-end assembly and the line-end assembly are plugged into each other, and the head is installed in the board-end base. The pins of the optical fiber assembly are plugged into the jack assembly of the optical module.

5. The optoelectronic connector according to claim 4, characterized in that: The rear end of the plate base has an insertion cavity, and the head seat has a groove. A first elastic damping sealing ring is installed on the groove. The head seat is located in the insertion cavity, and the contact area between the head seat and the side wall of the insertion cavity is sealed by the first elastic damping sealing ring.

6. The optoelectronic connector according to claim 5, characterized in that: The optical module has an inverted L-shaped structure. On the stepped surface of the optical module, there are pairs of rearward protruding columns. The columns are provided with pin holes, and a socket assembly is installed in the pin holes. The front end of the board base is provided with a mounting groove that matches the optical module. The stepped surface of the mounting groove is provided with a limiting hole. The columns are fitted into the limiting hole, and the front end of the optical module is abutted by the cover plate.

7. The optoelectronic connector according to claim 6, characterized in that: The two columns are connected by a connecting rib, and a receiving groove for accommodating the connecting rib is provided on the stepped surface of the mounting groove.

8. The optoelectronic connector according to claim 7, characterized in that: The front edge of the cover plate is provided with a slot, and the side wall of the mounting groove is provided with a locking block corresponding to the slot. The front end face of the locking block is provided with a guide slope to facilitate the cover plate to be squeezed through.

9. The optoelectronic connector according to claim 8, characterized in that: The top of the cover plate is also provided with a rearwardly extending elastic arm, and the rear end of the elastic arm is provided with a buckle. A guide groove is provided on the top wall of the mounting groove, and a locking hole communicating with the guide groove is provided on the plate end base. The buckle is fastened in the locking hole.

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