Vehicle-mounted wire harness end hybrid waterproof connector

Abstract

The utility model relates to the field of connectors, in particular to a vehicle-mounted wire harness end mixed type waterproof connector, which comprises an outer shell, a front end and a rear end, and is characterized in that the front end is used for plugging, and a plugging cavity is formed in the front end; the inner shell is axially embedded into the insertion cavity; the power wire harness assembly and the radio frequency coaxial wire harness assembly axially penetrate through the rear end of the outer shell and are installed in the inner shell, so that the power wire harness assembly and the radio frequency coaxial wire harness assembly in the inner shell are connected in an inserted mode; the inner shell is provided with a locking part for locking the power wire harness assembly and the radio frequency coaxial wire harness assembly, and the inner shell is detachably provided with an end cover for limiting unlocking of the locking part. According to the utility model, two kinds of wire harness assemblies used for plugging are integrated, the wire harness assemblies share the inner shell, the size of the connector is reduced, the cost is reduced, the inner shell is of an integrated structure, and the end cover realizes a secondary locking function.

Description

Technical Field

[0001] The utility model relates to the technical field of connectors, in particular to a hybrid waterproof connector for a vehicle-mounted wire harness end. Background Art

[0002] With the continuous increase of signal transmission rate and transmission frequency, and the corresponding reduction of the volume of a single whole machine and the increasing demand of the system for radio frequency lines and power supply lines and other factors, the demand for optoelectronic hybrid connectors is becoming more and more urgent.

[0003] It is necessary to integrate low-voltage power terminals and radio frequency terminals on the connector. The connectors of this type on the market are large in volume and high in cost. Among them, the connection method of the terminals on the wire harness is only a single-lock structure. After long-term use, the shell ages or is impacted by external forces, which will cause the terminals on the wire harness to become loose, affecting the connection effect and stability. Content of the Utility Model

[0004] The utility model aims to solve the above defects and provides a hybrid waterproof connector for a vehicle-mounted wire harness end.

[0005] In order to overcome the defects in the background art, the technical solution adopted by the utility model to solve its technical problems is: a hybrid waterproof connector for a vehicle-mounted wire harness end, including an outer shell body, the front end is used for plugging, and a plugging cavity is formed inside the front end;

[0006] An inner shell body is axially embedded into the plugging cavity;

[0007] A power wire harness assembly and a radio frequency coaxial wire harness assembly are axially penetrated from the rear end of the outer shell body and installed into the inner shell body, so that the power wire harness assembly and the radio frequency coaxial wire harness assembly in the inner shell body are plugged;

[0008] A locking part for locking the power wire harness assembly and the radio frequency coaxial wire harness assembly is arranged on the inner shell body, and an end cover for restricting the unlocking of the locking part is detachably arranged on the inner shell body.

[0009] Further improvement includes that the locking part is an elastic arm hook peeled off from the inner shell body. A locking groove opened on the power wire harness assembly is hooked and locked with the corresponding arm hook of the power wire harness assembly, and a limiting groove opened on the radio frequency coaxial wire harness assembly is hooked and locked with the corresponding arm hook of the radio frequency coaxial wire harness assembly.

[0010] Further improvement includes that a power wire harness step hole for installing the power wire harness assembly and a radio frequency coaxial wire harness step hole for installing the radio frequency coaxial wire harness assembly are axially opened in the inner shell body, and the arm hooks are respectively formed on the hole walls of the power wire harness step hole and the radio frequency coaxial wire harness step hole.

[0011] Further improvements include that the power cable harness assembly includes a power cable and a plug-in terminal connected to the end of the power cable, and the locking groove is formed on the plug-in terminal.

[0012] Further improvements include that a bayonet for clamping the locking key is formed on the inner housing, and the locking key is snapped into the locking step end formed by the connection end of the plug-in terminal and the power cable, thereby restricting the plug-in terminal from being pulled out of the step hole of the power cable harness.

[0013] Further improvements include that the RF coaxial cable harness assembly includes an RF cable and an RF plug-in terminal connected to the end of the RF cable, and the limiting groove is formed on the RF plug-in terminal.

[0014] Further improvements include that a second sealing portion for sealing the power cable harness assembly and the RF coaxial cable harness assembly is embedded at the rear end of the inner housing, and the power cable harness assembly and the RF coaxial cable harness assembly axially penetrate through the second sealing portion.

[0015] Further improvements include that a sealing installation area for installing the first sealing portion is formed on the surface of the inner housing.

[0016] Further improvements include that a limiting portion for restricting the movement of the first sealing portion is provided on the surface of the inner housing.

[0017] Further improvements include that a plurality of convex wings are radially provided on the inner housing, and the convex wings are fitted and embedded with the docking grooves axially formed in the outer housing.

[0018] Further improvements include that an elastic spring arm hook is formed by peeling the surface of the end cover, a first groove and a second groove for hook-fitting with the spring arm hook are axially formed on the inner housing, when the spring arm hook is hooked with the first groove, the end cover does not restrict the ejection of the spring arm hook, and when the spring arm hook is hooked with the second groove, the end cover restricts the ejection of the spring arm hook.

[0019] Further improvements include that an extension portion for wrapping the power cable harness assembly and the RF coaxial cable harness assembly is formed at the rear end of the outer housing.

[0020] Further improvements include that an elastic spring arm portion is formed by peeling the outer housing, a locking opening is formed on the spring arm portion, and a locking protrusion for being snapped into the locking opening is provided on the vehicle-mounted board-end hybrid waterproof connector inserted into the outer housing.

[0021] Further improvements include that a guiding groove is axially formed on the inner wall of the plugging cavity, and the guiding groove is in butt joint with the guiding rib provided on the vehicle-mounted board-end hybrid waterproof connector.

[0022] The beneficial effects of the present utility model are as follows: This design integrates a wire harness assembly that is correspondingly plugged into a radio frequency coaxial terminal and a low-voltage power terminal, and the wire harness assembly shares the inner housing, thereby reducing the volume of the connector and lowering the cost. The inner housing adopts an integral structure, effectively ensuring the assembly accuracy of the two wire harness assemblies, and the end cover has the function of realizing secondary locking. Description of the Drawings

[0023] The present utility model will be further described below in conjunction with the drawings and embodiments.

[0024] Figure 1 is the exploded view of the present utility model;

[0025] Figure 2 is the axonometric view of the inner housing in the present utility model;

[0026] Figure 3 is the radial axonometric sectional view of the present utility model Figure 1 ;

[0027] Figure 4 is the axonometric view of the end cover in the present utility model;

[0028] Figure 5 is the axial axonometric sectional view of the present utility model Figure 1 ;

[0029] Figure 6 is the axial axonometric sectional view of the present utility model Figure 2 ;

[0030] Figure 7 is the axial axonometric sectional view of the present utility model Figure 3 ;

[0031] Figure 8 is the radial axonometric sectional view of the present utility model Figure 2 ;

[0032] Figure 9 is the radial axonometric sectional view of the present utility model Figure 3 ;

[0033] Figure 10 is the axonometric view of the power wire harness assembly and the radio frequency coaxial wire harness assembly in the present utility model;

[0034] Figure 11 is the axonometric view of the present utility model;

[0035] Figure 12 is the assembly explosion of the present utility model Figure 1 ;

[0036] Figure 13 is the assembly explosion of the present utility model Figure 2 ;

[0037] In the figure, 1 - end cap, 2 - first sealing part, 3 - locking key, 4 - inner housing, 5 - second sealing part, 6 - outer housing, 7 - power cable harness assembly, 8 - RF coaxial cable harness assembly, 9 - sealing and mounting area, 10 - convex wing, 11 - limiting part, 12 - spring arm hook, 13 - stepped hole for power cable harness, 14 - stepped hole for RF coaxial cable harness, 15 - first groove, 16 - second groove, 17 - docking groove, 18 - spring arm hook, 19 - bayonet, 20 - extension part, 21 - spring arm part, 22 - locking port, 23 - guiding groove, 24 - insertion cavity, 25 - locking projection, 26 - guiding rib, 27 - vehicle-mounted board-end hybrid waterproof connector, 701 - power cable, 702 - insertion terminal, 703 - locking groove, 704 - locking step end, 801 - RF cable, 802 - limiting groove, 803 - RF insertion terminal. Detailed implementation manners

[0038] To make the objectives, technical solutions and advantages of the embodiments of the present utility model clearer, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Apparently, the described embodiments are some but not all of the embodiments of the present utility model. All other embodiments obtained by those of ordinary skill in the art without creative efforts based on the embodiments in the present utility model belong to the scope of protection of the present utility model.

[0039] According to Figure 1 As shown, a vehicle-mounted wire harness end hybrid waterproof connector includes an outer housing 6 with a front end for insertion and an insertion cavity 24 formed inside the front end; an inner housing 4 axially inserted into the insertion cavity 24; a power cable harness assembly 7 and an RF coaxial cable harness assembly 8 axially passing through the rear end of the outer housing 6 and installed into the inner housing 4 so that the power cable harness assembly 7 and the RF coaxial cable harness assembly 8 in the inner housing 4 are inserted; a locking part for locking the power cable harness assembly 7 and the RF coaxial cable harness assembly 8 is provided on the inner housing 4, and the locking part can restrict the power cable harness assembly 7 and the RF coaxial cable harness assembly 8 from being pulled out of the inner housing 4, and an end cap 1 for restricting the unlocking of the locking part is detachably arranged on the inner housing 4.

[0040] This design integrates wire harness assemblies corresponding to RF coaxial terminals and low-voltage power terminals for insertion, and the wire harness assemblies share the inner housing 4, thereby reducing the volume of the connector and the cost. The inner housing 4 adopts an integral structure, effectively ensuring the assembly accuracy of the two wire harness assemblies, and the end cap 1 has the function of realizing secondary locking.

[0041] According to Figure 5 and Figure 6As shown, the locking portion is an elastic spring arm hook 12 peeled off from the inner housing 4. The locking groove 703 formed on the power cable harness assembly 7 is engaged and locked with the corresponding spring arm hook 12 of the power cable harness assembly 7 to restrict the power cable harness assembly 7 from being pulled out of the inner housing 4. The limiting groove 802 formed on the RF coaxial cable harness assembly 8 is engaged and locked with the corresponding spring arm hook 12 of the RF coaxial cable harness assembly 8. By setting the end cap 1 to restrict the spring arm hook 12 from bouncing up and unlocking, secondary locking of the spring arm hook 12 is achieved, and the power cable harness assembly 7 and the RF coaxial cable harness assembly 8 are restricted from being pulled out of the inner housing 4.

[0042] According to Figure 2 As shown, a power cable step hole 13 for installing the power cable harness assembly 7 and an RF coaxial cable step hole 14 for installing the RF coaxial cable harness assembly 8 are axially formed in the inner housing 4. The spring arm hooks 12 are respectively formed on the hole walls of the power cable step hole 13 and the RF coaxial cable step hole 14. The power cable step hole 13 has a limiting effect on the power cable harness assembly 7, and the RF coaxial cable step hole 14 has a limiting effect on the RF coaxial cable harness assembly 8.

[0043] According to Figure 7 、 Figure 10 As shown, the power cable harness assembly 7 includes a power cable 701 and a plug-in terminal 702 connected to the end of the power cable 701. The locking groove 703 is formed on the plug-in terminal 702. The power cable harness assembly 7 is used for plugging into a power terminal.

[0044] According to Figure 8 、 Figure 9 and Figure 10 As shown, a bayonet 19 for snap-fitting the locking key 3 is formed on the inner housing 4. The locking key 3 is snapped into the locking step end 704 formed at the connection end of the plug-in terminal 702 and the power cable 701 to restrict the plug-in terminal 702 from being pulled out of the power cable step hole 13.

[0045] According to Figure 10 As shown, the RF coaxial cable harness assembly 8 includes an RF cable 801 and an RF plug-in terminal 803 connected to the end of the RF cable 801. The limiting groove 802 is formed on the RF plug-in terminal 803. The RF coaxial cable harness assembly 8 is used for plugging into an RF coaxial terminal.

[0046] According to Figure 5As shown, a sealing portion 25 for sealing the power harness assembly 7 and the RF coaxial harness assembly 8 is embedded in the rear end of the inner shell 4, the power harness assembly 7 and the RF coaxial harness assembly 8 are axially passed through the sealing portion 25, and the sealing portion 25 seals the connection ends of the outer shell 6 and the power harness assembly 7 and the RF coaxial harness assembly 8 to prevent external water vapor and dust from entering the hybrid waterproof connector at the vehicle harness end.

[0047] according to Figure 1 and Figure 2 As shown, a sealing installation area 9 for installing a sealing part 2 is provided on the surface of the inner shell 4, and a limiting part 11 for limiting the movement of the sealing part 2 is provided on the surface of the inner shell 4, and the limiting part 11 ensures the stability of the installation of the sealing part 2, and the sealing part 2 is used for sealing after plugging.

[0048] according to Figure 2 and Figure 3 As shown, a plurality of convex wings 10 are radially arranged on the inner shell 4, and the convex wings 10 are embedded in cooperation with the docking grooves 17 axially opened in the outer shell 6. The convex wings 10 support the inner wall of the outer shell 6 to prevent the outer shell 6 from being deformed or damaged by force when the elastic arm portion 21 is pressed, thereby extending the service life of the connector. The convex wings 10 effectively prevent the axial shaking of the inner shell 4, and the small clearance between the convex wings 10 and the docking grooves 17 can reduce the shaking amount of the inner shell 4, further reduce the shaking amount of the terminal, and facilitate the stability of the connector signal transmission.

[0049] according to Figure 4 and Figure 5 As shown, the surface of the end cover 1 is peeled off to form an elastic spring arm hook 18, and the inner shell 4 is axially provided with a groove 15 and a groove 2 16 for hooking and cooperating with the spring arm hook 18. When the spring arm hook 18 is hooked with the groove 15, the end cover 1 does not limit the popping out of the spring arm hook 12. When it is installed in this position, it is used for pre-assembly to release the locking state of the locking part, and the wiring harness can also be pulled out from the inner shell 4. When the spring arm hook 18 is hooked with the groove 2 16, it is installed in place, and the end cover 1 limits the popping out of the spring arm hook 12. The end cover 1 can limit the unlocking of the locking part to achieve a secondary lock function.

[0050] according to Figure 11 As shown, the rear end of the outer shell 6 forms an extension portion 20 for wrapping the power harness assembly 7 and the RF coaxial harness assembly 8. The extension portion 20 allows the harness to be wrapped by the outer shell 6 with a longer extension structure, which directly increases the distance from the bending point of the harness to the terminal. When the harness is bent or shaken, the effect of external force on the terminal is greatly reduced, thereby ensuring the stability of the terminal mating and increasing the service life of the connector.

[0051] As shown in Figure 12 FIG. 0, an elastic spring arm portion 21 is peeled and formed on the outer housing 6, a locking port 22 is formed on the spring arm portion 21, and a locking protrusion 25 that is snapped into the locking port 22 is provided on the vehicle-mounted board-end hybrid waterproof connector 27 inserted into the outer housing 6. When the outer housing 6 is inserted into the vehicle-mounted board-end hybrid waterproof connector 27, the locking protrusion 25 enters the insertion cavity 24 to push the spring arm portion 21 to deform and bounce outward, so as to be snapped into the locking port 22 for locking. This design method is beneficial to ensuring the stability of the insertion of the outer housing 6 and the vehicle-mounted board-end hybrid waterproof connector 27 and preventing separation after connection.

[0052] As shown in Figure 13 FIG. 0, a guiding groove 23 is axially formed on the inner wall of the insertion cavity 24, and the guiding groove 23 is in mating connection with a guiding rib 26 provided on the vehicle-mounted board-end hybrid waterproof connector 27. The cooperation of the guiding groove 23 and the guiding rib 26 has a guiding effect to ensure the accuracy and stability during the insertion of the connector.

[0053] The above is only a preferred specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art within the technical scope disclosed by the present invention, according to the technical solution of the present invention and its inventive concept, makes equivalent substitutions or changes, and all should be covered within the protection scope of the present invention.

Claims

1. A hybrid waterproof connector for vehicle wiring harness end, characterized in that: It comprises an outer shell (6), a front end for plugging, and a plugging cavity (24) formed in the front end; An inner housing (4) is axially embedded in the insertion cavity (24); A power harness assembly (7) and a radio frequency coaxial harness assembly (8) are axially inserted through the rear end of the outer shell (6) and installed in the inner shell (4), so that the power harness assembly (7) and the radio frequency coaxial harness assembly (8) in the inner shell (4) can be plugged in; The inner housing (4) is provided with a locking portion for locking the power harness assembly (7) and the radio frequency coaxial harness assembly (8), and the inner housing (4) is provided with a detachable end cover (1) for limiting the unlocking of the locking portion.

2. A hybrid waterproof connector for vehicle wiring harness end as claimed in claim 1, characterized in that: The locking portion is an elastic arm hook (12) that is peeled off from the inner shell (4); the locking groove (703) provided on the power harness assembly (7) cooperates with the elastic arm hook (12) corresponding to the power harness assembly (7) to be hooked and locked; the limiting groove (802) provided on the radio frequency coaxial harness assembly (8) cooperates with the elastic arm hook (12) corresponding to the radio frequency coaxial harness assembly (8) to be hooked and locked.

3. A hybrid waterproof connector for vehicle wiring harness end as claimed in claim 2, characterized in that: A power harness step hole (13) for installing a power harness assembly (7) and a radio frequency coaxial harness step hole (14) for installing a radio frequency coaxial harness assembly (8) are axially provided in the inner shell (4), and the elastic arm hook (12) is formed on the hole walls of the power harness step hole (13) and the radio frequency coaxial harness step hole (14), respectively.

4. A hybrid waterproof connector for vehicle wiring harness end as claimed in claim 3, characterized in that: The power harness assembly (7) comprises a power cord (701) and a plug-in terminal (702) connected to the end of the power cord (701), and the locking groove (703) is provided on the plug-in terminal (702).

5. A hybrid waterproof connector for vehicle wiring harness end as claimed in claim 4, characterized in that: The inner housing (4) is provided with a slot (19) for engaging a locking key (3); the locking key (3) is engaged with a locking step end (704) formed by a connection end of the plug-in terminal (702) and the power cord (701), thereby preventing the plug-in terminal (702) from being pulled out of the power cord harness step hole (13).

6. A hybrid waterproof connector for vehicle wiring harness end as claimed in claim 5, characterized in that: The radio frequency coaxial cable assembly (8) comprises a radio frequency line (801) and a radio frequency plug terminal (803) connected to the end of the radio frequency line (801), and the limiting groove (802) is provided on the radio frequency plug terminal (803).

7. A hybrid waterproof connector for vehicle wiring harness end as claimed in claim 6, characterized in that: A sealing portion 2 (5) for sealing the power harness assembly (7) and the radio frequency coaxial harness assembly (8) is embedded in the rear end of the inner housing (4), and the power harness assembly (7) and the radio frequency coaxial harness assembly (8) are axially penetrated through the sealing portion 2 (5).

8. A hybrid waterproof connector for vehicle wiring harness end according to any one of claims 1 to 7, characterized in that: The surface of the end cover (1) is peeled off to form an elastic arm hook (18); the inner shell (4) is axially provided with a groove 1 (15) and a groove 2 (16) for hooking with the elastic arm hook (18); when the elastic arm hook (18) is hooked with the groove 1 (15), the end cover (1) does not restrict the elastic arm hook (12) from popping out, thereby achieving pre-assembly; when the elastic arm hook (18) is hooked with the groove 2 (16), the end cover (1) restricts the elastic arm hook (12) from popping out.

9. A hybrid waterproof connector for vehicle wiring harness end as claimed in claim 8, characterized in that: An elastic arm portion (21) having elasticity is formed by peeling off the outer shell (6), a locking opening (22) is provided on the elastic arm portion (21), and a locking protrusion (25) that is inserted into the locking opening (22) is provided on a vehicle-mounted board-end hybrid waterproof connector (27) plugged into the outer shell (6).

10. A hybrid waterproof connector for vehicle wiring harness end as claimed in claim 9, characterized in that: A guide groove (23) is axially provided on the inner wall of the plug-in cavity (24), and the guide groove (23) is matingly connected with a guide rib (26) provided on the vehicle-mounted board-end hybrid waterproof connector (27).

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