Vehicle-mounted photoelectric hybrid male end connector

Abstract

The utility model relates to the technical field of connectors, in particular to a vehicle-mounted photoelectric hybrid male-end connector, which solves the problem of unstable optical fiber transmission in a high-vibration environment in the prior art, and comprises a male-end shell, an optical transmission cavity and an electric transmission cavity are arranged in the male-end shell, an insertion core assembly is clamped in the optical transmission cavity, and the insertion core assembly is clamped in the electric transmission cavity. The insertion core assembly is connected with an optical fiber cable, a multi-positioning structure matched with the insertion core assembly is arranged in the optical transmission cavity, and an electric transmission assembly is arranged in the electric transmission cavity. The beneficial effects of the utility model are that multiple positioning structures are employed to respectively limit the ceramic ferrule and the metal tail handle, thereby improving the installation stability of the ferrule assembly in the male end housing, further improving the anti-vibration performance of the male end connector, and enabling the male end connector to meet the application requirements in a high-vibration environment.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to a vehicle-mounted optoelectronic hybrid male connector. Background Technology

[0002] With the continuous development of advanced driver assistance systems and intelligent connected vehicle technologies, the number of in-vehicle electronic systems and applications is rapidly increasing. The ever-growing volume of data transmitted within vehicles places enormous demands on the bandwidth and security of in-vehicle communication networks. Traditional in-vehicle bus technology can no longer meet today's high-speed transmission requirements. Against this backdrop, in-vehicle fiber optic communication technology has gradually gained attention and importance. Besides significantly improving data transmission rates, it also offers advantages such as resistance to electromagnetic interference, reduced cable space, and reduced vehicle weight. However, the realization of in-vehicle fiber optic communication relies on electrical support, making optoelectronic hybrid connectors a necessary carrier for achieving in-vehicle optical communication. Therefore, how to meet the high-strength requirements of complex assembly processes in automotive wiring harnesses, the high-vibration application scenarios during vehicle operation, and the integration with electrical transmission channels while ensuring product quality under easy manufacturing conditions has become a challenge. In particular, there are two main challenges for glass fiber: first, the glass core is long and thin, and improper fixation can lead to fiber breakage; second, the core diameter is only 9µm, requiring high precision in mating to ensure transmission requirements. Solving these two problems while maintaining high transmission frequencies is crucial.

[0003] Existing technology, patent CN117810748A, discloses a hybrid optoelectronic connector and a plug connector. The hybrid connector includes a plug and a socket. The socket includes a socket housing, a socket insulator, and a cover housing assembled within the socket housing. The cover housing has optical contact insertion holes and electrical contact insertion holes. The side of the optical contact insertion hole communicates with an opening groove axially penetrating the surface of the cover housing. The plug includes a plug housing, a tail sleeve, and a plug core. The plug core is located in the cavity formed by the plug housing and the tail sleeve. The plug core includes an inner core housing and an inner core component. The inner core housing is connected to the tail sleeve. The inner core housing has a locking protrusion that passes through the plug housing to lock the socket. The inner core component includes a crimping assembly and an insulator component. This plug connector is the plug in a hybrid optoelectronic connector. The aforementioned hybrid optoelectronic connector can transmit both fluorescent and electrical signals simultaneously. However, under high vibration environments, the optical contact may vibrate within the housing, leading to unstable fiber optic transmission and affecting the connector's usability. Utility Model Content

[0004] This invention proposes a vehicle-mounted optoelectronic hybrid male connector, which solves the problem of unstable fiber optic transmission under high vibration environments in the prior art.

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

[0006] A vehicle-mounted optoelectronic hybrid male connector includes a male housing, within which are an optical transmission cavity and an electrical transmission cavity. A ferrule assembly is snapped into the optical transmission cavity, and an optical fiber cable is connected to the ferrule assembly. The optical transmission cavity contains a multi-positioning structure that mates with the ferrule assembly. The electrical transmission cavity contains an electrical transmission component. The multi-positioning structure provides multiple positioning for the ferrule assembly, ensuring accurate installation within the male housing, improving the installation stability of the ferrule assembly, and meeting the application requirements of the connector in high-vibration environments. Furthermore, by integrating optical and electrical transmission into one unit, it saves installation space.

[0007] The ferrule assembly includes a ceramic ferrule and a metal tail shank. The ceramic ferrule is connected to the front end of the metal tail shank, and the optical fiber cable is connected to the tail end of the metal tail shank.

[0008] The multi-positioning structure includes a ferrule positioning part and a tailstock positioning part. The ferrule positioning part mates with the ceramic ferrule, and the tailstock positioning part mates with the metal tailstock. The ferrule positioning part positions the ceramic ferrule, achieving precise positioning and ensuring stability during connector mating. The tailstock positioning part positions the metal tailstock. Through the combined action of the ferrule positioning part and the tailstock positioning part, radial positioning of the ferrule assembly is achieved.

[0009] The lower part of the ferrule positioning part has a conical surface that mates with the front end of the metal tail shank. The conical surface limits the front end of the metal tail shank, improving the positional stability of the metal tail shank and thus improving the stability of the ceramic ferrule.

[0010] The optical transmission cavity is equipped with a hook, and the middle of the metal tail shank is equipped with a limiting groove. The hook engages with the limiting groove. The hook engages with the side wall of the limiting groove to achieve axial positioning of the ferrule assembly, preventing the ferrule assembly from retracting when the connector is mated, thereby ensuring the stability of the ceramic ferrule when the connector is mated.

[0011] A guide plate is connected to the ferrule positioning part, and the guide plate is located on the outside of the ceramic ferrule. The height of the guide plate is higher than that of the ceramic ferrule. When the connectors are mated, the guide plate contacts the female connector first, and then the ceramic ferrule contacts the female connector, ensuring accurate mating position of the ceramic ferrule and facilitating quick connection of the connectors.

[0012] The optical fiber cable includes a fiber core and an optical cable sheath. An aramid layer is provided between the fiber core and the optical cable sheath. A mating hole is provided in the metal tail and the ceramic ferrule. The fiber core passes through the mating hole. The aramid layer covers the tail of the metal tail. A crimping ring is provided on the outside of the aramid layer and the optical cable sheath. The crimping ring compresses the aramid layer and the optical cable sheath to achieve the connection between the optical fiber cable and the metal tail.

[0013] The metal tailstock has a knurled surface at its tail end, with the aramid layer in contact with the knurled surface. The knurled surface increases friction, improving the stability of the relative position between the aramid layer and the metal tailstock after the crimping ring crimps the aramid layer, thereby enabling the optical fiber cable to meet the high pull-out force requirements of automotive applications.

[0014] The optical fiber cable is equipped with an optical sealing plug, which is pressed against the inner wall of the optical transmission cavity. An optical sealing end cap is attached to the male end housing, corresponding to the optical sealing plug. The optical sealing plug seals the optical transmission cavity, ensuring the sealing performance of the male connector, while the optical sealing end cap limits the position of the optical sealing plug, thereby ensuring stable installation of the optical sealing plug within the male end housing.

[0015] The electrical transmission assembly includes an electrical conductor housing disposed within an electrical transmission cavity. An electrical conductor is located within the housing, and a wire is connected to the tail end of the conductor. An electrically sealed plug is fitted onto the wire. An electrically sealed tail cap is attached to the male end of the housing, and the tail cap presses against the electrical conductor housing through the electrically sealed plug. The electrically sealed plug engages with the inner wall of the electrical transmission cavity, achieving a seal.

[0016] The beneficial effects of this utility model are: 1. The use of a multi-positioning structure to simultaneously limit the ceramic ferrule and the metal tail stick improves the installation stability of the ferrule assembly in the male terminal housing, thereby improving the vibration resistance of the male terminal connector and enabling the male terminal connector to meet the application requirements in high vibration environments.

[0017] 2. When connecting the optical fiber cable to the ferrule assembly, the aramid layer is covered on the metal tail shank, and a knurled surface is provided on the metal tail shank to increase the friction between the aramid layer and the metal tail shank, thereby improving the stability of the relative position of the aramid layer and the metal tail shank, and thus enabling the optical fiber cable to meet the high pull-out force requirements of automotive applications.

[0018] 3. A guide plate is provided on the outside of the ceramic ferrule. The height of the guide plate is higher than that of the ceramic ferrule. When the connectors are mated, the guide plate contacts the female connector first, and then the ceramic ferrule contacts the female connector. This ensures that the ceramic ferrule is accurately positioned and facilitates quick connection of the connector. In addition, the guide plate can protect the ceramic ferrule and prevent it from being damaged by bumps. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1This is a schematic diagram of the structure of a vehicle-mounted optoelectronic hybrid male connector according to the present invention;

[0021] Figure 2 This is a schematic diagram of an exploded male connector.

[0022] Figure 3 This is a cross-sectional view of the male connector;

[0023] Figure 4 This is a schematic diagram showing the connection between the ferrule assembly and the optical fiber cable.

[0024] Figure 5 This is a schematic diagram of a half-section of the male end housing;

[0025] Figure 6 This is a schematic diagram of the connection between an electrical conductor and a wire.

[0026] In the diagram: 1. Male end housing, 2. Flanged core assembly, 3. Crimping ring, 4. Optical sealing plug, 5. Optical sealing end cap, 6. Optical fiber cable, 7. Conductor, 8. Electrical sealing end cap, 9. Electrical sealing plug, 10. Electrical conductor housing, 11. Electrical conductor, 101. Anti-misalignment strip, 102. First mounting platform, 103. Second mounting platform, 104. Third mounting platform, 105. Guide plate, 106. Flanged core limiting part, 107. End cap limiting part, 108. Hook, 21. Ceramic ferrule, 22. Metal end cap, 221. Limiting groove, 222. Knurled surface, 61. Fiber core, 62. Aramid layer, 63. Optical cable sheath. Detailed Implementation

[0027] 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.

[0028] Example 1, such as Figure 1 , Figure 2 As shown, a vehicle-mounted optoelectronic hybrid male connector includes a male housing 1, within which are an optical transmission cavity and an electrical transmission cavity. A ferrule assembly 2 is snapped into the optical transmission cavity, and an optical fiber cable 6 is connected to the ferrule assembly 2. The optical transmission cavity contains a multi-positioning structure that mates with the ferrule assembly 2. The electrical transmission cavity contains an electrical transmission component. This design integrates optical and electrical transmission, saving connector installation space. The multi-positioning structure provides multiple positioning for the ferrule assembly 2, ensuring accurate and stable installation within the male housing 1, improving the installation stability of the ferrule assembly 2, and enabling the male connector to meet application requirements in high-vibration environments.

[0029] Furthermore, such as Figure 4 As shown, the ferrule assembly 2 includes a ceramic ferrule 21 and a metal tail shank 22. The ceramic ferrule 21 is connected to the front end of the metal tail shank 22, and the optical fiber cable 6 is connected to the tail end of the metal tail shank 22. Figure 3 , Figure 5 As shown, the multi-positioning structure includes a ferrule positioning part 106 and a tailstock positioning part 107. The ferrule positioning part 106 mates with the ceramic ferrule 21, and the tailstock positioning part 107 mates with the metal tailstock 22. The radial positioning of the ferrule assembly 2 is achieved through the combined action of the ferrule positioning part 106 and the tailstock positioning part 107. The lower part of the ferrule positioning part 106 has a conical surface, which mates with the front end of the metal tailstock 22. The conical surface limits the front end of the metal tailstock 22, improving the positional stability of the metal tailstock 22, and thus improving the stability of the ceramic ferrule 2.

[0030] Specifically, the ferrule positioning part 106 performs the first positioning of the ferrule assembly 2, the tail shank positioning part 107 performs the second positioning of the ferrule assembly 2, and the conical surface performs the third positioning of the ferrule assembly 2. The triple positioning structure fixes the radial position of the ferrule assembly 2 in the male end housing 1, ensuring that the radial installation position of the ferrule assembly 2 in the male end housing 1 is accurate.

[0031] Furthermore, a hook 108 is provided inside the optical transmission cavity, and a limiting groove 221 is provided in the middle of the metal tail shank 22. The hook 108 and the limiting groove 221 are engaged. In this embodiment, the limiting groove 221 is an annular groove, and the groove shape of the annular groove is rectangular; the upper end surface of the hook 108 is flat, and the upper end surface of the hook 108 engages with the side wall of the annular groove to provide a thrust-resistant function. The engagement of the hook 108 with the side wall of the limiting groove 221 achieves axial positioning of the ferrule assembly 2. Specifically, as shown... Figure 3 As shown, the hook 108 provides support through the limiting groove 221 to prevent the ferrule assembly 2 from retracting when the connector is mated, thereby ensuring the stability of the ceramic ferrule 21 when the connector is mated.

[0032] Furthermore, a guide plate 105 is connected to the ferrule positioning part 106, and the guide plate 105 is located on the outside of the ceramic ferrule 21. In this embodiment, the guide plate 105 is an arc-shaped plate, which is located on both sides of the ceramic ferrule 21. The arc-shaped plate has a protective function for the ceramic ferrule 21 and can effectively prevent the ceramic ferrule 21 from being damaged by collision. In addition, the height of the guide plate 105 is higher than the height of the ceramic ferrule 21. That is, when the connector is mated, the guide plate 105 contacts the female connector first, and then the ceramic ferrule 21 contacts the female connector, ensuring that the ceramic ferrule 21 is accurately positioned when it contacts the female connector, which facilitates the rapid connection of the connector.

[0033] Example 2, based on Example 1, provides an automotive optoelectronic hybrid male connector, such as... Figure 4As shown, the optical fiber 6 includes a fiber core 61 and an optical cable sheath 63. An aramid layer 62 is provided between the fiber core 61 and the optical cable sheath 63. The metal tail shank 22 and the ceramic ferrule 21 have mating holes, with the fiber core 61 passing through the mating holes. The aramid layer 62 covers the tail of the metal tail shank 22. A crimping ring 3 is provided on the outer side of the aramid layer 62 and the optical cable sheath 63. The crimping ring 3 compresses the aramid layer 62 and the optical cable sheath 63, thus connecting the optical fiber cable 6 to the metal tail shank 22.

[0034] Furthermore, the tail of the metal tail shank 22 is provided with a knurled surface 222, and the aramid layer 62 contacts the knurled surface 222. The knurled surface 222 has the function of increasing friction. After the crimping ring 3 crimps the aramid layer 62, it improves the stability of the relative position between the aramid layer 62 and the metal tail shank 22, thereby enabling the optical fiber cable 6 to meet the high pull-out force requirements of automotive applications.

[0035] Furthermore, the optical fiber cable 6 is provided with an optical sealing plug 4, which is pressed and fitted against the inner wall of the optical transmission cavity; an optical sealing tail cap 5 is hung on the male end housing 1, and the optical sealing tail cap 5 corresponds to the optical sealing plug 4. In this embodiment, a third mounting platform 104 is provided on the outer side of the male end housing 1, and the optical sealing tail cap 5 is attached to the third mounting platform 104. The optical sealing plug 4 seals the optical transmission cavity to ensure the sealing performance of the male end connector, and the optical sealing tail cap 5 limits the position of the optical sealing plug 4, thereby ensuring that the optical sealing plug 4 is stably installed inside the male end housing 1.

[0036] Furthermore, such as Figure 3 , Figure 6 As shown, the electrical transmission assembly includes an electrical conductor housing 10, which is disposed within an electrical transmission cavity. An electrical conductor 11 is disposed within the electrical conductor housing 10, and a wire 7 is connected to the tail end of the electrical conductor 11. An electrical sealing plug 9 is fitted onto the wire 7. An electrical sealing tail cap 8 is attached to the male end housing 1, and the electrical sealing tail cap 8 presses against the electrical conductor housing 10 through the electrical sealing plug 9. A thrust surface is provided within the electrical transmission cavity, which engages with the front end of the electrical conductor 11 to restrict its forward movement. A second mounting platform 103 is provided on the outer side of the male end housing 1, which engages with the electrical sealing tail cap 8. The electrical sealing tail cap 8 provides support to the electrical conductor housing 10 through the electrical sealing plug 9, thereby providing support to the electrical conductor 11 and restricting its backward movement, thus fixing the electrical conductor 11 within the male end housing 1. The electrical sealing plug 9 presses against the inner wall of the electrical transmission cavity to seal the electrical sealing cavity.

[0037] Furthermore, the male end housing 1 is provided with an anti-misalignment strip 101 and a first mounting plate 102. The anti-misalignment strip 101 ensures that the male end connector and the female end connector are accurately positioned during connector mating. The first mounting plate 102 is connected to the female end connector to ensure stable connection after the connectors are mated.

[0038] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A vehicle-mounted opto-electric hybrid male connector comprising a male housing (1), characterized in that, The male shell (1) is internally provided with a light transmission cavity and an electric transmission cavity, the light transmission cavity is internally clamped with a ferrule assembly (2), the ferrule assembly (2) is connected with an optical fiber cable (6), the light transmission cavity is internally provided with a multiple positioning structure matched with the ferrule assembly (2), and the electric transmission cavity is internally provided with an electric transmission assembly.

2. The on-vehicle optical and electrical hybrid male connector according to claim 1, characterized by The ferrule assembly (2) comprises a ceramic ferrule (21) and a metal tail handle (22), the ceramic ferrule (21) is connected with the front end of the metal tail handle (22), and the optical fiber cable (6) is connected with the tail end of the metal tail handle (22).

3. The on-vehicle optical and electrical hybrid male connector according to claim 2, characterized by The multiple positioning structure comprises a ferrule positioning portion (106) and a tail handle positioning portion (107), the ferrule positioning portion (106) is matched with the ceramic ferrule (21), and the tail handle positioning portion (107) is matched with the metal tail handle (22).

4. The on-vehicle optical-electrical hybrid male connector according to claim 3, characterized by The lower part of the ferrule positioning portion (106) is provided with a tapered surface matched with the front end of the metal tail handle (22).

5. The on-vehicle optical and electrical hybrid male connector according to claim 2 or 3 or 4, characterized by, The light transmission cavity is internally provided with a hook (108), the middle part of the metal tail handle (22) is provided with a limiting groove (221), and the hook (108) is clamped and matched with the limiting groove (221).

6. The on-vehicle optical-electrical hybrid male connector according to claim 5, wherein The ferrule positioning portion (106) is connected with a guide plate (105), and the guide plate (105) is located outside the ceramic ferrule (21).

7. The optical and electrical hybrid male connector for automotive use according to claim 2 or 6, wherein The optical fiber cable (6) comprises a fiber core (61) and a cable sheath (63), and a Kevlar layer (62) is arranged between the fiber core (61) and the cable sheath (63), the metal tail handle (22) and the ceramic ferrule (21) are internally provided with a matched hole, the fiber core (61) is arranged in the matched hole, the Kevlar layer (62) covers the tail part of the metal tail handle (22), and the Kevlar layer (62) and the outside of the cable sheath (63) are provided with a crimping ring (3).

8. The on-vehicle optical-electric hybrid male connector according to claim 7, characterized by The tail part of the metal tail handle (22) is provided with a knurled surface (222), and the Kevlar layer (62) is in contact with the knurled surface (222).

9. The on-vehicle optical-electrical hybrid male connector according to claim 8, characterized by, The optical fiber cable (6) is provided with a light sealing plug (4), the light sealing plug (4) is extruded and matched with the inner wall of the light transmission cavity, the male shell (1) is hung with a light sealing tail cover (5), and the light sealing tail cover (5) corresponds to the light sealing plug (4).

10. The optical and electrical hybrid male connector for automotive use according to claim 1 or 9, wherein The electric transmission assembly comprises an electric conductor shell (10), the electric conductor shell (10) is arranged in the electric transmission cavity, the electric conductor shell (10) is internally provided with an electric conductor (11), the electric conductor (11) is connected with a wire (7) at the tail end, the wire (7) is sleeved with an electric sealing plug (9), the male shell (1) is hung with an electric sealing tail cover (8), and the electric sealing tail cover (8) extrudes the electric conductor shell (10) through the electric sealing plug (9).

Images