Vehicle-mounted board end hybrid waterproof connector

Abstract

The utility model relates to the field of connectors, in particular to a vehicle-mounted board end mixed type waterproof connector, which comprises a shell, insertion areas are formed at the front end and the rear end of the shell, and an insertion cavity is formed in the front end of the shell and used for insertion. The terminal A axially penetrates through the bottom wall of the plugging cavity, so that the two ends of the terminal A can be plugged, and the terminal A is used for radio frequency signal transmission; the terminal B axially penetrates through the bottom wall of the plugging cavity, so that the two ends of the terminal B can be plugged, and the terminal B is used for supplying power to the circuit board; the metal conductor axially penetrates through the bottom wall of the plugging cavity, is coaxial with the terminal B and is used for conducting electricity and grounding; and the terminal A and the terminal B are respectively provided with a limiting part for limiting the terminal A and the terminal B to move back and forth along the axial direction of the shell. According to the utility model, the radio frequency coaxial terminal and the low-voltage power supply terminal are arranged and assembled in the shell, the size is small, the cost is low, and the limiting part can ensure the stability of the terminal A4 and the terminal B5 during installation.

Description

Technical Field

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

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

[0003] On the connector, it is necessary to integrate low-voltage power terminals and radio frequency terminals. The connectors of this type on the market are large in volume, high in cost, and the terminals are arranged by injecting them into a plastic housing. Long-term plugging and unplugging and the aging of the housing will cause the internal terminals to fall off, affecting the connection effect. Summary of the Utility Model

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

[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 vehicle-mounted board-end hybrid waterproof connector, including a housing, with a plug-in area formed at the front and rear ends, and a plug-in cavity formed inside the front end for plugging;

[0006] Terminal A axially penetrates the bottom wall of the plug-in cavity so that both ends of Terminal A can be plugged and is used for radio frequency signal transmission;

[0007] Terminal B axially penetrates the bottom wall of the plug-in cavity so that both ends of Terminal B can be plugged, is used for supplying power to the circuit board, and at least one is provided;

[0008] A metal conductor axially penetrates the bottom wall of the plug-in cavity and is coaxially arranged with Terminal B for conducting electricity and grounding;

[0009] Restricting parts for restricting the axial forward and backward movement of Terminal A and Terminal B along the housing are respectively provided on Terminal A and Terminal B.

[0010] Further improvement includes that the housing is made of plastic material.

[0011] Further improvement includes that the metal conductor includes a conductor body with a tubular structure, and at least one bending wall is provided at the end of the conductor body, and the bending wall extends to the outside through a connection hole opened on the bottom wall of the plug-in cavity.

[0012] Further improvement includes that a conductor installation groove matching the outer shape of the metal conductor is opened on the bottom wall of the plug-in cavity, a convex platform for sleeving the conductor body is formed at the center of the conductor installation groove, and Terminal A axially penetrates the convex platform.

[0013] Further improvements include that several hook-shaped parts are formed at the end of the conductor body based on the tube wall of the conductor body. The hook-shaped parts are arranged adjacent to the bending wall, and the hook-shaped parts are in interference fit and clamped with the clamping holes formed on the bottom wall of the insertion cavity.

[0014] Further improvements include that at least three guiding protrusions that fit with the conductor body are circumferentially arranged inside the conductor installation groove.

[0015] Further improvements include that the limiting part includes a barbed part and a protruding part, and at least one barbed part is provided.

[0016] Further improvements include that terminal A is inserted into the fixing hole A axially formed on the bottom wall of the insertion cavity. The protruding part on terminal A is snapped into the limiting groove A formed on the housing, and the barbed part on terminal A is snapped into the anti-withdrawal groove A formed in the fixing hole A; terminal B is inserted into the fixing hole B axially formed on the bottom wall of the insertion cavity. The protruding part on terminal B is snapped into the limiting groove B formed on the housing, and the barbed part on terminal B is snapped into the anti-withdrawal groove B formed in the fixing hole B.

[0017] Further improvements include that a locking protrusion is arranged on the housing. The surface of the in-vehicle wiring harness end hybrid waterproof connector inserted into the front end of the housing is peeled to form an elastic elastic wall, and a locking opening for the locking protrusion to snap into is formed on the elastic wall.

[0018] Further improvements include that several guiding ribs are axially arranged on the housing, and the guiding ribs are in mating connection with the guiding grooves formed inside the in-vehicle wiring harness end hybrid waterproof connector.

[0019] The beneficial effects of the present utility model are as follows: In this design, terminal A and the metal conductor are combined to form a radio frequency coaxial terminal. In this design, the radio frequency coaxial terminal and the low-voltage power terminal are ingeniously arranged and assembled in the housing in terms of space. Compared with the connectors on the market, it is small in volume and low in cost, and the limiting part can ensure the stability of the installation of terminal A and terminal B. Description of the Drawings

[0020] The following further describes the present utility model in conjunction with the drawings and embodiments.

[0021] Figure 1 is the exploded view of the present utility model;

[0022] Figure 2 is the axonometric view of the present utility model Figure 1 ;

[0023] Figure 3 is the axonometric view of the present utility model Figure 2 ;

[0024] Figure 4 is the installation drawing of the present utility model;

[0025] Figure 5 is the sectional axonometric view of the present utility model;

[0026] Figure 6 is the axial sectional view Figure 1 ;

[0027] Figure 7 is the axial sectional view Figure 2 ;

[0028] Figure 8 is the axonometric view of the metal conductor of the present utility model;

[0029] Figure 9 is the axonometric view of terminal B in the present utility model;

[0030] Figure 10 is the axonometric view of terminal A in the present utility model;

[0031] Figure 11 is the assembly drawing of terminal A and the metal conductor in the present utility model;

[0032] Figure 12 is the axonometric view of the housing in the present utility model;

[0033] Figure 13 is the assembly Figure 1 ;

[0034] Figure 14 is the assembly Figure 2 ;

[0035] In the figure, 1 - metal conductor, 101 - conductor body, 102 - bending wall, 103 - hook portion, 2 - sleeve liner, 3 - housing, 4 - terminal A, 5 - terminal B, 6 - sealing portion, 7 - plugging portion, 8 - installation portion, 9 - guide post, 10 - positioning portion, 11 - notch portion, 12 - mounting plate, 13 - circuit board, 14 - sealing groove, 15 - card hole, 16 - limiting groove B, 17 - connection hole, 18 - limiting groove A, 19 - fixing hole A, 20 - anti - withdrawal groove A, 21 - boss, 22 - fixing hole B, 23 - anti - withdrawal groove B, 24 - barbed portion, 25 - protruding portion, 26 - conductor installation groove, 27 - plugging cavity, 28 - guiding protrusion, 29 - locking protrusion, 30 - guiding rib, 31 - elastic arm, 32 - locking opening, 33 - vehicle - mounted wire harness end hybrid waterproof connector, 34 - guiding groove. Detailed implementation manners

[0036] 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 fall within the scope of protection of the present utility model.

[0037] According to Figure 1 、 Figure 12 As shown, a vehicle-mounted board-end hybrid waterproof connector includes a housing 3 made of plastic material. Plug-in areas 7 are formed at the front and rear ends, and a plug-in cavity 27 is formed inside the front end for plugging. Terminal A 4 axially penetrates the bottom wall of the plug-in cavity 27 so that both ends of the terminal A 4 can be plugged and is used for radio frequency signal transmission. Terminal B 5 axially penetrates the bottom wall of the plug-in cavity 27 so that both ends of the terminal B 5 can be plugged, is used to supply power to the circuit board 13, and at least one is provided. Metal conductor 1 axially penetrates the bottom wall of the plug-in cavity 27 and is coaxially arranged with the terminal B 5 for conducting electricity and grounding. Restricting portions for restricting the axial forward and backward movement of the terminal A 4 and the terminal B 5 along the housing 3 are respectively provided on the terminal A 4 and the terminal B 5, so that the terminals have better positional accuracy and retention force, making the connection performance more stable and reliable.

[0038] In this design, the terminal A 4 and the metal conductor 1 are combined to form a radio frequency coaxial terminal. In this design, the radio frequency coaxial terminal and the low-voltage power supply terminal are ingeniously arranged and assembled in the housing in terms of space. Compared with the connectors on the market, it is small in volume and low in cost, and the restricting portion can ensure the stability of the terminal A 4 and the terminal B 5 during installation.

[0039] According to Figure 5 and Figure 8 As shown, the metal conductor 1 includes a conductor body 101 with a tubular structure. At least one bending wall 102 is provided at the end of the conductor body 101. The bending wall 102 extends to the outside through a connection hole 17 opened on the bottom wall of the plug-in cavity 27, and the bending wall 102 is used to connect with the circuit board to achieve the functions of conducting electricity and grounding.

[0040] According to Figure 3 、 Figure 6 、 Figure 12As shown, a conductor mounting groove 26 matching the outer shape of the metal conductor 1 is formed on the bottom wall of the insertion cavity 27. A boss 21 for sleeving the conductor body 101 is formed at the center of the conductor mounting groove 26. A terminal A4 axially penetrates through the boss 21. The boss 21 has a positioning effect on the conductor body 101, which is used to control the positional tolerance of the metal conductor 1, avoiding the movement of the conductor body 101 caused by external force on the connector and affecting the use effect.

[0041] According to Figure 5 、 Figure 8 As shown, a plurality of hook-shaped portions 103 based on the tube wall of the conductor body 101 are formed at the end of the conductor body 101. The hook-shaped portions 103 are arranged adjacent to the bent wall 102. The hook-shaped portions 103 are in interference fit and clamped with the locking holes 15 formed on the bottom wall of the insertion cavity 27, thereby restricting the pulling out of the conductor body 101 and ensuring the stability during connection, so that the metal conductor 1 has a certain holding force after being inserted into the housing 3.

[0042] According to Figure 12 As shown, at least three guiding protrusions 28 fitting the conductor body 101 are circumferentially arranged in the conductor mounting groove 26. By controlling the gap size between the guiding protrusions 28 and the conductor body 101, the positional tolerance of the metal conductor 1 is controlled.

[0043] According to Figure 9 and Figure 10 As shown, the limiting portion includes a barb portion 24 and a protrusion portion 25. At least one barb portion 24 is provided. The barb portion 24 and the protrusion portion 25 have the function of restricting the axial movement of the terminal A4 and the terminal B5 in the housing 3.

[0044] According to Figure 5 、 Figure 7 、 Figure 8 、 Figure 9 、 Figure 10 、 Figure 11 As shown, the terminal A4 is inserted into the axially formed fixing hole A19 on the bottom wall of the insertion cavity 27. The protrusion portion 25 on the terminal A4 is snapped into the limiting groove A18 formed on the housing 3. The barb portion 24 on the terminal A4 is snapped into the anti-retreat groove A20 formed in the fixing hole A19. The terminal B5 is inserted into the axially formed fixing hole B22 on the bottom wall of the insertion cavity 27. The protrusion portion 25 on the terminal B5 is snapped into the limiting groove B16 formed on the housing 3. The barb portion 24 on the terminal B5 is snapped into the anti-retreat groove B23 formed in the fixing hole B22. The barb portion 24 and the protrusion portion 25 are used to axially limit the terminal A4 and the terminal B5, ensuring the stability during insertion, and the protrusion portion 25 can effectively ensure the installation dimensions of the terminal A4 and the terminal B5.

[0045] According to Figure 2 , Figure 5 As shown, a sealing portion 6 is embedded in a sealing groove 14 formed in a mounting portion 8 of the housing 3. The sealing portion 6 protrudes outward to form a positioning portion 10 for distinguishing the mounting direction. The positioning portion 10 is embedded in a notch portion 11 formed in the mounting portion 8. The positioning portion 10 is provided on the sealing portion 6 only when the sealing portion 6 has a non-rectangular structure.

[0046] According to Figure 13 and Figure 14 As shown, a locking protrusion 29 is provided on the housing 3. The surface of a vehicle-mounted wire harness end hybrid waterproof connector 33 inserted into the front end of the housing 3 is peeled off to form an elastic elastic wall 31. A locking opening 32 for the locking protrusion 29 to snap into is formed in the elastic wall 31. When the housing 3 is inserted into the vehicle-mounted wire harness end hybrid waterproof connector 33, the locking protrusion 29 pushes the elastic arm 31 to elastically deform. When the housing 3 is inserted into the vehicle-mounted wire harness end hybrid waterproof connector 33 in place, the locking protrusion 29 snaps into the locking opening 32 to lock the housing 3 and restrict the housing 3 from being pulled out of the vehicle-mounted wire harness end hybrid waterproof connector 33.

[0047] A plurality of guiding ribs 30 are axially provided on the housing 3. The guiding ribs 30 are in mating connection with guiding grooves 34 formed in the vehicle-mounted wire harness end hybrid waterproof connector 33. The guiding ribs 30 have a positioning function to ensure the accuracy and stability of the insertion.

[0048] According to Figure 1 , Figure 2 and Figure 4 As shown, a plurality of connection holes for inserting bolts are formed in a mounting portion 8 of the housing 3. A sleeve lining 2 made of a metal material is embedded in the connection holes. A bolt or screw is used to pass through the sleeve lining 2 and mount the housing 3 on a mounting plate 12. The sleeve lining 2 can effectively increase the locking force of the bolt and improve the sealing performance after installation. A plurality of positioning guide posts 9 are provided at the rear end of the housing 3. During assembly, the guide posts 9 are assembled in positioning holes on the circuit board to ensure the accuracy of the installation.

[0049] 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 and inventive concept of the present invention, 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 board end, characterized in that: It comprises a housing (3), the front and rear ends of which form a plug-in area (7), and the front end of which forms a plug-in cavity (27) for plugging; The terminal A (4) is axially arranged through the bottom wall of the plug-in cavity (27) so that both ends of the terminal A (4) can be plugged in and used for radio frequency signal transmission; A terminal B (5) is axially arranged to penetrate the bottom wall of the plug-in cavity (27) so that both ends of the terminal B (5) can be plugged in, and is used to supply power to the circuit board (13), and at least one terminal B (5) is provided; A metal conductor (1) axially penetrates the bottom wall of the plug-in cavity (27) and is coaxially arranged with the terminal B (5) for conducting electricity and grounding; The terminal A (4) and the terminal B (5) are respectively provided with a limiting portion for limiting the axial forward and backward movement of the terminal A (4) and the terminal B (5) along the housing (3).

2. The vehicle-mounted board-end hybrid waterproof connector according to claim 1, characterized in that: The shell (3) is made of plastic material.

3. The vehicle-mounted board-end hybrid waterproof connector according to claim 1, characterized in that: The metal conductor (1) comprises a conductor body (101) of a tubular structure, the end of the conductor body (101) being provided with at least one bent wall (102), the bent wall (102) extending to the outside through a connection hole (17) provided on the bottom wall of the insertion cavity (27).

4. The vehicle-mounted board-end hybrid waterproof connector according to claim 3, characterized in that: A conductor mounting groove (26) matching the shape of the metal conductor (1) is provided on the bottom wall of the plug-in cavity (27), a boss (21) for sleeve-mounting the conductor body (101) is formed at the center of the conductor mounting groove (26), and a terminal A (4) is axially penetrated through the boss (21).

5. The vehicle-mounted board-end hybrid waterproof connector according to claim 4, characterized in that: The end of the conductor body (101) is provided with a plurality of hook-shaped portions (103) based on the tube wall of the conductor body (101); the hook-shaped portions (103) are arranged adjacent to the bending wall (102); and the hook-shaped portions (103) are interference-fitted and clamped with the clamping holes (15) provided on the bottom wall of the plug-in cavity (27).

6. The vehicle-mounted board-end hybrid waterproof connector according to claim 5, characterized in that: At least three guide protrusions (28) that fit the conductor body (101) are arranged in the inner circumferential direction of the conductor installation groove (26).

7. The vehicle-mounted board-end hybrid waterproof connector according to claim 6, characterized in that: The limiting portion comprises a barb portion (24) and a protrusion portion (25), and at least one barb portion (24) is provided.

8. The vehicle-mounted board-end hybrid waterproof connector according to claim 7, characterized in that: The terminal A (4) is inserted into a fixing hole A (19) axially provided on the bottom wall of the plug-in cavity (27), the protrusion (25) on the terminal A (4) is inserted into a limiting groove A (18) provided on the housing (3), and the barb (24) on the terminal A (4) is inserted into an anti-retraction groove A (20) provided in the fixing hole A (19); the terminal B (5) is inserted into a fixing hole B (22) axially provided on the bottom wall of the plug-in cavity (27), the protrusion (25) on the terminal B (5) is inserted into a limiting groove B (16) provided on the housing (3), and the barb (24) on the terminal B (5) is inserted into an anti-retraction groove B (23) provided in the fixing hole B (22).

9. A vehicle-mounted board-end hybrid waterproof connector according to any one of claims 1 to 8, characterized in that: The housing (3) is provided with a locking protrusion (29), which is peeled off from the surface of a hybrid waterproof connector (33) at the vehicle wiring harness end plugged into the front end of the housing (3) to form an elastic wall (31), and the elastic wall (31) is provided with a locking opening (32) for the locking protrusion (29) to be inserted.

10. The vehicle-mounted board-end hybrid waterproof connector according to claim 9, characterized in that: A plurality of guide ribs (30) are axially arranged on the housing (3), and the guide ribs (30) are matingly matched with guide grooves (34) provided in the hybrid waterproof connector (33) at the vehicle-mounted wiring harness end.

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