Vehicle-mounted photoelectric hybrid female end connector

Abstract

The utility model relates to the technical field of connectors, in particular to a vehicle-mounted photoelectric hybrid female end connector, which solves the problem of unstable optical fiber transmission in a high-vibration environment in the prior art, and comprises a female end shell, an optical transmission cavity and an electric transmission cavity are arranged in the female end shell, and a sleeve assembly is clamped in the optical transmission cavity. An insertion core assembly is arranged in the sleeve assembly in a sliding mode and is elastically connected with the female end shell. An electric transmission assembly is arranged in the electric transmission cavity; a CPA structure is slidably connected outside the female end housing. The beneficial effects of the utility model are that the sleeve assembly is arranged in the female end housing to limit and guide the insertion core assembly, and when the connector is not inserted, the sleeve assembly can protect the insertion core assembly, thereby preventing the insertion core assembly from being damaged by collision. The female end housing is provided with the CPA structure, and after the connector is plugged, the CPA structure can carry out the secondary locking of the hanging structure on the female end housing, thereby guaranteeing the plugging stability of the connector.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of connector, especially a kind of vehicle-mounted photoelectric hybrid female end connector. BACKGROUND

[0002] With the development of automobile intelligentization, network connection, the total bandwidth requirement of automobile communication is higher and higher, and the use of a large number of vehicle-mounted sensors and display screens has higher requirements for the complexity, volume and weight and electromagnetic shielding design of automobile wiring harness. Optical fiber becomes an ideal carrier for vehicle-mounted high-speed communication due to its small size, low weight and immunity to electromagnetic interference. Therefore, how to meet the high-strength in the complex assembly process of vehicle wiring harness and the high-vibration complex application scenario during vehicle driving, and how to ensure the quality of the product under the premise of easy processing and manufacturing have become a difficult problem. Especially for glass optical fiber, there are two difficulties: first, the glass fiber core is long and thin, and it is difficult to fix, which may break the fiber. Second, the diameter of the fiber core is only 9um, and high precision is required for insertion to ensure transmission requirements.

[0003] The patent with publication number CN117810748A discloses an optical-electric mixed connector and a plug connector. The optical-electric mixed connector includes a plug and a socket. The socket includes a socket shell, a socket insulator and a cover shell assembled in the socket shell. The cover shell is provided with an optical contact piece socket and an electrical contact piece socket. The side surface of the optical contact piece socket is in communication with an opening slot on the surface of the cover shell. The plug includes a plug shell, a tail sleeve and a plug inner core. The plug inner core is located in a cavity formed by the plug shell and the tail sleeve. The plug inner core includes an inner core shell and an inner core component. The inner core shell is connected with the tail sleeve. The inner core shell is provided with a locking protrusion passing through the plug shell for locking the socket. The inner core component includes a crimping assembly and an insulator component. The plug connector is a plug in the optical-electric mixed connector. The above-mentioned optical-electric mixed connector can transmit fluorescent light and electrical signals simultaneously. However, in a high-vibration environment, the optical contact piece may shake in the shell, and the optical fiber transmission is unstable, which affects the use of the connector. UTILITY MODEL CONTENTS

[0004] The utility model provides a kind of vehicle-mounted photoelectric hybrid female end connector, solve the problem of optical fiber transmission instability in high-vibration environment in prior art.

[0005] The technical solution of the utility model is as follows:

[0006] A kind of vehicle-mounted photoelectric hybrid female end connector, including female end shell, optical transmission cavity and electric transmission cavity are equipped in female end shell, sleeve assembly is clamped in optical transmission cavity, plug core assembly is slidably arranged in sleeve assembly, plug core assembly is elastically connected with female end shell;Electric transmission cavity is equipped with electric transmission assembly;Female end shell is slidably connected with CPA structure outside.

[0007] The sleeve assembly comprises a sleeve shell, the sleeve shell is connected with the female end shell through a hanging connection, a sleeve is arranged in the sleeve shell, and the plug-in core assembly is in sliding fit with the sleeve; the sleeve is in a tubular structure, an opening is arranged on the side wall of the tubular structure, and the opening is arranged along the axial direction of the sleeve; and a limiting structure is arranged between the sleeve shell and the female end shell.

[0008] The limiting structure comprises a positioning plate and a limiting plate, the positioning plate is arranged in the light transmission cavity, the limiting plate is arranged on the outer side of the lower part of the sleeve shell, and the inner wall of the limiting plate is attached to the outer wall of the positioning plate. A hanging hole is arranged on the positioning plate, a sleeve outer hook is arranged on the sleeve shell, and the sleeve outer hook is connected with the hanging hole.

[0009] The plug-in core assembly comprises a ceramic plug-in core and a metal tail handle, the ceramic plug-in core is arranged at the front end of the metal tail handle, and the rear end of the metal tail handle is connected with the optical fiber cable; the ceramic plug-in core is in sliding fit with the sleeve, and the metal tail handle is in sliding fit with the lower part of the sleeve shell.

[0010] The optical fiber cable comprises a fiber core and a cable sheath, a Kevlar layer is arranged between the fiber core and the cable sheath, a matching hole is arranged in the ceramic plug-in core and the metal tail handle, the fiber core is arranged in the matching hole, the tail part of the metal tail handle is provided with a knurled surface, the Kevlar layer is in contact with the knurled surface, and a compression ring is arranged on the outer side of the Kevlar layer and the cable sheath.

[0011] The middle part of the metal tail handle is provided with a spring compression surface, a spring is arranged on the compression ring, one end of the spring is matched with the spring compression surface, and the other end of the spring is matched with a stepped surface in the light transmission cavity.

[0012] The female end shell is externally provided with a hanging arm, the middle part of the hanging arm is connected with the female end shell, the head part of the hanging arm is provided with a shell hook, and the tail part of the hanging arm is raised.

[0013] The CPA structure comprises an integrally connected guide plate and pressing plate, the tail parts of the guide plate and the pressing plate are connected with a supporting plate, the female end shell is provided with a guide sliding groove, the guide plate is in sliding fit with the guide sliding groove, the pressing plate is matched with the shell hook, and the supporting plate is matched with the tail part of the hanging arm.

[0014] The electric transmission assembly comprises an electric conductor shell, the electric conductor shell is arranged in an electric transmission cavity, the electric conductor shell is internally provided with an electric conductor, the tail end of the electric conductor is connected with an electric cable, the electric cable is provided with a sealing gasket, the female end shell is hung with an electric sealing tail cover, and the electric sealing tail cover extrudes the electric conductor shell through the sealing gasket.

[0015] The utility model discloses produce the beneficial effect is: set up the sleeve assembly in the female end shell and position the plug-in core assembly, and simultaneously, when the connector does not match the plug-in, the sleeve assembly has the protection effect to the plug-in core assembly, avoids the collision damage of plug-in core assembly.

[0016] The tail end of the metal tail handle is provided with a knurled surface, the aramid layer is pressed tightly on the knurled surface by the compression ring, the knurled surface has the effect of increasing the friction force, after the compression ring is used for pressing the aramid layer, the stability of the relative position of the aramid layer and the metal tail handle is improved, and then the optical fiber cable meets the high pulling force requirement of the vehicle-mounted application.

[0017] The CPA structure is arranged on the female end shell, and after the connector is plugged, the CPA structure can secondarily lock the hanging structure on the female end shell, so that the stability of the connector is ensured. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical scheme in the embodiments of the present application or the prior art, the drawings needed in the embodiment or the prior art description will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0019] Figure 1 It is a schematic diagram of a vehicle-mounted photoelectric hybrid female connector structure of the present application.

[0020] Figure 2 It is an exploded view of the female connector.

[0021] Figure 3 It is a sectional view of the female connector. Figure 1

[0022] Figure 4 It is a sectional view of the female connector. Figure 2

[0023] Figure 5 It is a half-sectional schematic diagram of the female end shell.

[0024] Figure 6 It is a schematic diagram of the plug core assembly and the optical fiber cable connection.

[0025] Figure 7 It is a schematic diagram of the CPA structure.

[0026] Figure 8 It is a sectional view of the sleeve assembly.

[0027] Figure 9 It is a schematic diagram of the electrical conductor and the cable connection.

[0028] ​​In the diagram: 1. Optical fiber cable; 2. Sleeve; 3. Sleeve housing; 4. Ferrule assembly; 7. Crimping ring; 8. Spring; 9. Sealing plug; 10. Optical sealing end cap; 11. Female end housing; 14. CPA structure; 15. Cable; 16. Electrical conductor; 17. Electrical conductor housing; 18. Sealing gasket; 19. Electrical sealing end cap; 21. Opening; 31. Inner hook of sleeve; 32. Limiting plate; 33. Outer hook of sleeve; 34. Positioning block; 41. Ceramic ferrule; 42. Gold The components are: tail handle, 421, limiting groove, 422, spring compression surface, 423, knurled surface, 101, fiber core, 102, aramid layer, 103, cable sheath, 111, positioning plate, 112, hanging hole, 113, hanging arm, 114, housing hook, 115, guide groove, 116, limiting block, 117, anti-misalignment groove, 118, positioning groove, 141, guide plate, 142, pressure plate, 143, support plate, 144, lower locking block, and 145, upper locking block. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example 1, as Figures 1-4 As shown, a vehicle-mounted optoelectronic hybrid female connector includes a female housing 11, within which are provided an optical transmission cavity and an electrical transmission cavity. A sleeve assembly is snapped into the optical transmission cavity, and a ferrule assembly 4 is slidably disposed within the sleeve assembly, elastically connected to the female housing 11. An electrical transmission assembly is disposed within the electrical transmission cavity. A CPA structure 14 is slidably connected to the outside of the female housing 11. This design integrates optical and electrical transmission, saving connector installation space. The sleeve assembly guides and limits the ferrule assembly 4, and also protects the ferrule assembly 4 from collision damage when the connector is not mated. The elastic connection between the ferrule assembly 4 and the female housing 11 ensures that the ferrule assembly 4 is always subjected to a forward thrust, thereby ensuring stable contact when mated.

[0031] Furthermore, such as Figure 8As shown, the sleeve assembly comprises a sleeve shell 3, the sleeve shell 3 is connected with the female end shell 11, the sleeve shell 3 is provided with a sleeve 2, and the ferrule assembly 4 is in sliding fit with the sleeve 2; the sleeve 2 is a tubular structure, the tubular structure is provided with an opening 21 on the side wall, the opening 21 is arranged along the axial direction of the sleeve 2; and a limiting structure is arranged between the sleeve shell 3 and the female end shell 11. Specifically, the sleeve 2 is arranged at the upper part of the sleeve shell 3, the inner wall size of the sleeve 2 is smaller than the diameter size of the ferrule assembly 4, when the ferrule assembly 4 is inserted into the sleeve 2, the sleeve 2 is forced to open, and the sleeve 2 can tighten the ferrule assembly 4 to realize the anti-shaking and limiting of the ferrule assembly 4.

[0032] Further, the limiting structure comprises a positioning plate 111 and a limiting plate 32, the positioning plate 111 is arranged in the light transmission cavity, the limiting plate 32 is arranged outside the lower part of the sleeve shell 3, the inner wall of the limiting plate 32 is attached to the outer wall of the positioning plate 111; the positioning plate 111 is provided with a hanging hole 112, the sleeve shell 3 is provided with a sleeve outer hook 33, and the sleeve outer hook 33 is connected with the hanging hole 112. Through the cooperation of the limiting plate 32 and the positioning plate 111, the installation stability of the sleeve assembly in the female end shell 11 is ensured, and the installation stability of the ferrule assembly 4 in the female end shell 11 is improved.

[0033] In addition, the positioning plate 111 is provided with a positioning groove 118, the sleeve shell 3 is provided with a positioning block 34, after the sleeve shell 3 is connected with the positioning plate 111, the positioning block 34 enters the positioning groove 118, the positioning groove 118 limits the rotation of the sleeve shell 3, and the installation stability of the sleeve assembly in the female end shell 11 is ensured.

[0034] Further, the ferrule assembly 4 comprises a ceramic ferrule 41 and a metal tail handle 42, the ceramic ferrule 41 is arranged at the front end of the metal tail handle 42, and the rear end of the metal tail handle 42 is connected with the optical fiber cable 1; the ceramic ferrule 41 is in sliding fit with the sleeve 2, and the metal tail handle 42 is in sliding fit with the lower part of the sleeve shell 3. The sleeve 21 guides and limits the ceramic ferrule 41, the sleeve shell 3 guides and limits the metal tail handle 42, and the stability of the axial movement of the ferrule assembly 4 in the sleeve assembly is ensured.

[0035] In addition, the sleeve shell 3 is provided with a sleeve inner hook 31, the middle part of the metal tail handle 42 is provided with a limiting groove 421, the limiting groove 421 cooperates with the sleeve inner hook 31, and the width of the limiting groove 421 is greater than the thickness of the sleeve inner hook 31. The sleeve inner hook 31 can move in the limiting groove 421.

[0036] Embodiment 2, on the basis of embodiment 1, a vehicle-mounted photoelectric hybrid female end connector, like Figure 6As shown, the optical fiber cable 1 includes a fiber core 101 and a cable sheath 103, and a layer of aramid 102 is arranged between the fiber core 101 and the cable sheath 103. The ceramic ferrule 41 and the metal tail handle 42 are provided with matching holes, and the fiber core 101 is arranged in the matching holes. The tail of the metal tail handle 42 is provided with a knurled surface 423, the layer of aramid 102 is in contact with the knurled surface 423, and the layer of aramid 102 and the cable sheath 103 are provided with a crimp ring 7 on the outside. The crimp ring 7 extrudes the layer of aramid 102 and the cable sheath 103 to realize the connection of the optical fiber cable 1 and the metal tail handle 42. The knurled surface 423 has the effect of increasing friction, and after the crimp ring 7 extrudes the layer of aramid 102, the stability of the relative position of the layer of aramid 102 and the metal tail handle 42 is improved, and then the optical fiber cable 1 meets the high pulling force requirement of vehicle-mounted application.

[0037] Further, the middle part of the metal tail handle 42 is provided with a spring compression surface 422, the crimp ring 7 is provided with a spring 8, one end of the spring 8 is matched with the spring compression surface 422, and the other end of the spring 8 is matched with a stepped surface in the optical transmission cavity. When the connectors are connected, the ferrule assembly 4 retreats and extrudes the spring 8, and the spring 8 provides a forward thrust to the ferrule assembly 4 through the spring compression surface 422 to improve the contact stability of the ferrule assembly 4.

[0038] Further, the optical fiber cable 1 is provided with a sealing plug 9, and the sealing plug 9 is extruded and matched with the inner wall of the optical transmission cavity. The female end shell 11 is hung with a light sealing tail cover 10, and the light sealing tail cover 10 corresponds to the sealing plug 9. In this embodiment, the outer side of the female end shell 11 is provided with a hanging table, the light sealing tail cover 10 is hung and matched with the hanging table, the sealing plug 9 seals the optical transmission cavity to ensure the sealing of the female end connector, and the light sealing tail cover 10 limits the sealing plug 9 to ensure the stable installation of the sealing plug 9 in the female end shell 11.

[0039] Further, as shown in the figure, Figure 5 The outer part of the female end shell 11 is provided with a hanging arm 113, the middle part of the hanging arm 113 is connected with the female end shell 11, the head part of the hanging arm 113 is provided with a shell hook 114, and the tail part of the hanging arm 113 is raised. After the connectors are connected, the shell hook 114 is connected with the hanging table on the male end connector, and the shell hook 114 can be separated from the hanging table by pressing the tail part of the hanging arm 113 to realize the unlocking of the connectors.

[0040] Further, as shown in the figure, Figure 7As shown, the CPA structure 14 comprises an integrally connected guide plate 141 and a pressing plate 142, the tail of the guide plate 141 and the pressing plate 142 is connected with a support plate 143, the female end shell 11 is provided with a guide sliding groove 115, the guide plate 141 is in sliding fit with the guide sliding groove 115, the pressing plate 142 is in fit with the shell hook 114, and the support plate 143 is in fit with the tail of the hooking arm 113. The guide plate 141 is provided with an upper locking block 144 and a lower locking block 145, the female end shell 11 is provided with a limiting block 116, when the CPA structure 14 is in the initial position, the limiting block 116 is located between the upper locking block 144 and the lower locking block 145, when the CPA structure 14 performs secondary locking on the hooking arm 113, the limiting block 116 is located below the lower locking block 145, at this time, the pressing plate 142 presses the shell hook 114, and the support plate 143 is located between the tail of the hooking arm 113 and the female end shell 11, that is, the pressing plate 142 limits the head of the hooking arm 113, and the support plate 143 limits the tail of the hooking arm 113, thereby realizing secondary locking on the hooking arm 113 and ensuring the stability of the connector plug.

[0041] Further, as shown in Figure 3 、 Figure 9 The electric transmission assembly comprises an electric conductor shell 17, the electric conductor shell 17 is arranged in the electric transmission cavity, the electric conductor shell 17 is provided with an electric conductor 16, the tail end of the electric conductor 16 is connected with an electric cable 15, the electric cable 15 is provided with a sealing gasket 18, the female end shell 11 is hung with an electric sealing tail cover 19, and the electric sealing tail cover 19 extrudes the electric conductor shell 17 through the sealing gasket 18. The electric transmission cavity is provided with a thrust face, the thrust face is in fit with the front end of the electric conductor 16, thereby limiting the forward movement of the electric conductor 16; the female end shell 11 is hung with the electric sealing tail cover 19 outside, the electric sealing tail cover 19 provides support for the electric conductor shell 17 through the sealing gasket 18, thereby providing support for the electric conductor 16, limiting the backward movement of the electric conductor 16, and realizing the fixation of the electric conductor 16 in the female end shell 11; the sealing gasket 18 is in extrusion fit with the inner wall of the electric transmission cavity, thereby realizing the sealing of the electric sealing cavity.

[0042] The above merely describes the preferred embodiments of the present application and is not intended to limit the present application, and any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A vehicle-mounted optical and electrical hybrid female connector comprising a female housing (11), characterized in that, The female end shell (11) is provided with a light transmission cavity and an electric transmission cavity, the light transmission cavity is provided with a sleeve assembly, the sleeve assembly is provided with a ferrule assembly (4) slidingly, the ferrule assembly (4) is elastically connected with the female end shell (11); the electric transmission cavity is provided with an electric transmission assembly; the female end shell (11) is slidingly connected with a CPA structure (14) outside.

2. The optical and electrical hybrid female connector for an automobile according to claim 1, wherein The sleeve assembly comprises a sleeve shell (3), the sleeve shell (3) is hingedly connected with the female end shell (11), the sleeve shell (3) is provided with a sleeve (2) inside, the ferrule assembly (4) is slidingly matched with the sleeve (2); the sleeve (2) is a tubular structure, the tubular structure is provided with an opening (21) on the side wall, the opening (21) is arranged along the axis direction of the sleeve (2); the sleeve shell (3) and the female end shell (11) are provided with a limiting structure therebetween.

3. The optical and electrical hybrid female connector for an in-vehicle use according to claim 2, wherein The limiting structure comprises a positioning plate (111) and a limiting plate (32), the positioning plate (111) is arranged in the light transmission cavity, the limiting plate (32) is arranged outside the lower part of the sleeve shell (3), the inner wall of the limiting plate (32) is attached to the outer wall of the positioning plate (111).

4. The optical and electrical hybrid female connector for an automobile according to claim 3, wherein The positioning plate (111) is provided with a hanging hole (112), the sleeve shell (3) is provided with a sleeve outer hook (33), and the sleeve outer hook (33) is connected with the hanging hole (112).

5. The vehicle-mounted optical-electrical hybrid female connector according to any one of claims 2-4, characterized in that, The ferrule assembly (4) comprises a ceramic ferrule (41) and a metal tail handle (42), the ceramic ferrule (41) is arranged at the front end of the metal tail handle (42), the rear end of the metal tail handle (42) is connected with the optical fiber cable (1); the ceramic ferrule (41) is slidingly matched with the sleeve (2), and the metal tail handle (42) is slidingly matched with the lower part of the sleeve shell (3).

6. The optical and electrical hybrid female connector for an in-vehicle use according to claim 5, wherein The optical fiber cable (1) comprises a fiber core (101) and a cable sheath (103), and a aramid layer (102) is arranged between the fiber core (101) and the cable sheath (103), the ceramic ferrule (41) and the metal tail handle (42) are provided with a matching hole, the fiber core (101) is arranged in the matching hole, the tail part of the metal tail handle (42) is provided with a knurled surface (423), the aramid layer (102) is in contact with the knurled surface (423), and the aramid layer (102) and the cable sheath (103) are provided with a crimping ring (7) outside.

7. The optical and electrical hybrid female connector for an automobile according to claim 6, wherein The middle part of the metal tail handle (42) is provided with a spring compression surface (422), the crimping ring (7) is provided with a spring (8) sleeved thereon, one end of the spring (8) is matched with the spring compression surface (422), and the other end of the spring (8) is matched with a stepped surface in the light transmission cavity.

8. The optical and electrical hybrid female connector for an in-vehicle use according to claim 1 or 7, wherein The female end shell (11) is provided with a hinging arm (113) outside, the middle part of the hinging arm (113) is connected with the female end shell (11), the head part of the hinging arm (113) is provided with a shell hook (114), and the tail part of the hinging arm (113) is raised.

9. The optical and electrical hybrid female connector for an automobile according to claim 8, wherein The CPA structure (14) comprises an integrally connected guide plate (141) and a pressing plate (142), the tail parts of the guide plate (141) and the pressing plate (142) are connected with a supporting plate (143), the female end shell (11) is provided with a guide sliding groove (115), the guide plate (141) is slidingly matched with the guide sliding groove (115), the pressing plate (142) is matched with the shell hook (114), and the supporting plate (143) is matched with the tail part of the hinging arm (113).

10. The optical and electrical hybrid female connector for an automobile according to claim 9, wherein The electric transmission assembly comprises an electric conductor shell (17) arranged in an electric transmission cavity, an electric conductor (16) arranged in the electric conductor shell (17), a cable (15) connected to a tail end of the electric conductor (16), a sealing gasket (18) arranged on the cable (15), and a female end shell (11) with an electric sealing tail cover (19) hung thereon, wherein the electric sealing tail cover (19) is pressed against the electric conductor shell (17) through the sealing gasket (18).

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