Wheel speed sensor terminal

Abstract

The utility model discloses a wheel speed sensor terminal, and relates to the technical field of wheel speed sensors, the wheel speed sensor terminal comprises a plastic skeleton, a metal connecting piece and a clamping mechanism arranged between the plastic skeleton and the metal connecting piece, and the plastic skeleton is internally provided with two groups of mounting holes for the metal connecting piece to pass through; through the clamping connection among the metal flange, the plastic elastic clamping body and the baffle ring, the metal pins and other parts are not easy to loosen after being collided by external force, so that the copper wire harness end connected with the plastic framework is subjected to glue bonding or injection molding treatment, the metal connecting piece is inserted along the mounting hole during mounting, and the mounting efficiency is improved. And the rolled copper wire harness is plugged between the clamping opening and the mounting hole of the metal connecting piece, so that the initial mounting process of the terminal and the copper wire harness can be completed, and the operation is more convenient and faster.

Description

Technical Field

[0001] This application relates to the field of wheel speed sensor technology, and in particular to a wheel speed sensor terminal. Background Technology

[0002] Wheel speed sensor terminals are sensors mounted on the wheels of a car to measure the wheel's rotational speed. These terminals are commonly referred to as wheel speed sensors, also known as vehicle speed sensors (VSS). The primary function of wheel speed sensors is to provide information about the wheel's rotational speed, which is crucial for many systems in modern vehicles, including dynamic control systems, electronic stability programs, anti-lock braking systems (ABS), and automatic transmission control systems.

[0003] Patent CN214067190U discloses a "wheel speed sensor chip module and wheel speed sensor." The wheel speed sensor chip module includes a chip, a first terminal, a second terminal, and an insulating shell. The first terminal and the second terminal are electrically connected to the chip. The insulating shell includes a first housing and a second housing. The first housing is integrally injection molded on the outside of the chip, a portion of the first terminal, and a portion of the second terminal. The second housing is secondary injection molded on the outside of the first housing. The first housing includes multiple first sidewalls, and at least two adjacent first sidewalls have positioning structures on their outer surfaces. This design can reduce assembly processes, decrease volume, and improve positioning accuracy.

[0004] Regarding the aforementioned technologies, the inventors believe that the method of assembling and connecting terminals and other components by first inserting and then gluing them together has the disadvantage that if the terminals and other components are subjected to external force before the glue has fully cured, they are prone to loosening, resulting in unstable connections. Therefore, improvements are needed. Utility Model Content

[0005] To address the aforementioned issues, this application provides a wheel speed sensor terminal.

[0006] The wheel speed sensor terminal provided in this application adopts the following technical solution:

[0007] A wheel speed sensor terminal includes a plastic frame and a metal connector, and a snap-fit ​​mechanism disposed between the plastic frame and the metal connector. The plastic frame has two sets of mounting holes for the metal connector to pass through.

[0008] The snap-fit ​​mechanism includes two sets of plastic elastic snap-fit ​​bodies fixedly disposed on the top of the plastic frame, a metal flange fixedly disposed on the top of one end of the metal connector for passing through the plastic elastic snap-fit ​​bodies, and a retaining ring fixedly disposed on the top of the other end of the metal connector and slidably connected in a matching mounting hole. The plastic elastic snap-fit ​​bodies are engaged and abutted between the metal flange and the retaining ring. The metal flange end of the metal connector is fixedly provided with a metal pin extending to the outside of the plastic frame. The other end of the metal connector is provided with a clamping port for connecting to form a coiled copper wire harness.

[0009] By adopting the above technical solution, the metal flange, the plastic elastic clip and the retaining ring are interlocked to prevent the metal pins and other components from coming loose after an external impact, so that the copper wire harness connected to the plastic frame can be glued or injection molded.

[0010] Preferably, two sets of clearance grooves are provided on both sides of the top of the plastic frame, and the plastic elastic clip is located in the clearance groove of the plastic frame.

[0011] By adopting the above technical solution, the clearance groove can provide space for the plastic elastic card body inside the plastic skeleton to deform under compression.

[0012] Preferably, the bottom of the clamping opening of the metal connector is provided with several barbed metal springs.

[0013] By adopting the above technical solution, the barbed metal spring can hook the coiled copper wire bundle inside the clamping mouth, thereby preventing the copper wire bundle from falling out of the terminal.

[0014] Preferably, the bottom of the clamping port of the metal connector is provided with a recessed groove, and a plurality of metal springs are fixedly connected in the recessed groove of the metal connector, with the top of the metal springs extending to the outside of the recessed groove.

[0015] By adopting the above technical solution, the bottom end of the metal spring can be hidden by the sinking groove.

[0016] Preferably, one end of the metal connector has a limiting hole communicating with the sinking trough, and a movable rod is slidably provided in the limiting hole of the metal connector. One end of the movable rod extends to the outside of the plastic frame, and a triangular push plate is fixedly provided at one end of the movable rod for pressing the top of the metal spring into the sinking trough after the movable rod moves.

[0017] By adopting the above technical solution, when it is necessary to disassemble the copper wire harness inside the terminal, the movable rod can be pushed into the mounting hole, so that the triangular push plate moves and presses the top of the metal spring into the recessed groove, making it easy for the staff to quickly remove the copper wire harness from the top of the barbed metal spring and facilitate replacement.

[0018] In summary, this application includes at least one of the following beneficial technical effects:

[0019] 1. The interlocking mechanism between the metal flange, the plastic elastic clip, and the retaining ring prevents the metal pins and other components from easily coming loose after an external impact. This allows the copper wire harness connected to the plastic frame to be glued or injection molded. During installation, the metal connector is inserted along the mounting hole, and the coiled copper wire harness is stuffed between the clamping opening of the metal connector and the mounting hole, thus completing the initial installation process of the terminal and the copper wire harness, which is more convenient and faster.

[0020] 2. The barbed metal spring can hook the coiled copper wire bundle inside the clamping mouth, thereby preventing the copper wire bundle from falling out of the terminal. When it is necessary to remove the copper wire bundle from the terminal, the movable rod can be pushed into the mounting hole, so that the triangular push plate moves and presses the top of the metal spring into the recessed groove, making it easy for the staff to quickly remove the copper wire bundle from the top of the barbed metal spring for easy replacement. Attached Figure Description

[0021] Figure 1 This is a schematic diagram of the overall structure of a wheel speed sensor terminal according to an embodiment of this application;

[0022] Figure 2 This is a front view connection diagram illustrating the internal structure of the plastic frame and metal connectors, which is the main embodiment of this application.

[0023] Figure 3 The embodiments of this application mainly embody Figure 1 Enlarged view of the structure of A in the middle;

[0024] Figure 4 The embodiments of this application mainly embody Figure 2 Enlarged view of the structure of B in the middle;

[0025] Reference numerals: 1. Plastic frame; 11. Mounting hole; 12. Plastic elastic clip; 13. Relief groove; 2. Metal connector; 21. Metal pin; 22. Metal flange; 23. Retaining ring; 24. Clamping port; 25. Recessed groove; 26. Limiting hole; 3. Metal spring; 4. Movable rod; 41. Triangular push plate. Detailed Implementation

[0026] The following is in conjunction with the appendix Figures 1-4 This application will be described in further detail.

[0027] This application discloses a wheel speed sensor terminal.

[0028] A wheel speed sensor terminal, reference Figure 1-2It includes a plastic frame 1, a metal connector 2, and a snap-fit ​​mechanism. The plastic frame 1 and the metal connector 2 form the terminals of the existing wheel speed sensor. The plastic frame 1 can be installed on the wheel of a car, and the snap-fit ​​mechanism can connect the plastic frame 1 and the metal connector 2.

[0029] Reference Figure 1-3 The plastic frame 1 has two sets of mounting holes 11 for the metal connector 2 to pass through. The locking mechanism includes two sets of plastic elastic clips 12 fixed on the top of the plastic frame 1, a metal flange 22 fixed on the top of one end of the metal connector 2 for the plastic elastic clips 12 to pass through, and a retaining ring 23 fixed on the top of the other end of the metal connector 2 and slidably connected in the matching mounting holes 11. The plastic elastic clips 12 are engaged and abutted between the metal flange 22 and the retaining ring 23. The metal flange 22 and the retaining ring 23 can lock and limit the plastic elastic clips 12 in the middle, thereby fixing the metal connector 2 that enters the plastic frame 1.

[0030] During installation, the metal connector 2 can be inserted into the mounting hole 11 of the plastic frame 1. As the metal connector 2 is continuously inserted, the metal flange 22 can push open the top plastic elastic clip 12 and pass through the bottom of the plastic elastic clip 12 to enter one side of the plastic elastic clip 12 until the retaining ring 23 is completely pressed against the matching mounting hole 11. At this time, the retaining ring 23 and the metal flange 22 can limit the plastic elastic clip 12 in the middle from both sides, thereby locking the metal connector 2 into the plastic frame 1.

[0031] Reference Figure 1-3 The metal flange 22 end of the metal connector 2 is fixedly provided with a metal pin 21 extending to the outside of the plastic frame 1. The metal connector 2 can be connected to other lines through the metal pin 21. The metal pin 21 is a common device of the existing wheel speed sensor terminal, which will not be described in detail here.

[0032] Reference Figure 1-3 Two sets of relief grooves 13 are provided on the top two sides of the plastic frame 1. The plastic elastic clip 12 is located in the relief groove 13 of the plastic frame 1. The relief groove 13 can provide space for the plastic elastic clip 12 inside the plastic frame 1 to deform under compression.

[0033] Reference Figure 1-3 The other end of the metal connector 2 is provided with a clamping port 24 for connecting the coiled copper wire harness. When the metal connector 2 is snapped into the plastic frame 1, the coiled copper wire harness can be inserted between the clamping port 24 and the mounting hole 11 of the metal connector 2 to make a preliminary connection between the terminal and the copper wire harness. Subsequently, the workers can glue or injection mold the copper wire harness end connected to the plastic frame 1. This is an existing process and will not be described in detail here.

[0034] Refer to 2 and Figure 4 The clamping opening 24 of the metal connector 2 is provided with several barbed metal springs 3 at the bottom. The barbed metal springs 3 can hook the coiled copper wire bundle inside the clamping opening 24, thereby preventing the copper wire bundle from going out and making it difficult for the copper wire bundle to fall out of the terminal.

[0035] Refer to 2 and Figure 4 The clamping port 24 of the metal connector 2 has a recessed groove 25 at the bottom. Several metal springs 3 are fixedly connected in the recessed groove 25 of the metal connector 2. The top of the metal springs 3 extends to the outside of the recessed groove 25. The metal connector 2 can hide the bottom of the metal springs 3 through the recessed groove 25.

[0036] Refer to 2 and Figure 4 The metal connector 2 has a limiting hole 26 at one end that communicates with the sinking groove 25. A movable rod 4 is slidably installed in the limiting hole 26 of the metal connector 2. One end of the movable rod 4 extends to the outside of the plastic frame 1. A triangular push plate 41 is fixedly installed at one end of the movable rod 4 for pressing the top of the metal spring 3 into the sinking groove 25 after the movable rod 4 moves. The metal connector 2 can connect and limit the movable rod 4 through the limiting hole 26, so that the movable rod 4 can move laterally. After the triangular push plate 41 moves towards the metal spring 3, it can press the top of the metal spring 3 into the sinking groove 25 under its own inclined surface guidance.

[0037] When it is necessary to disassemble the copper wire harness inside the terminal, the movable rod 4 can be pushed into the mounting hole 11, thereby causing the movable rod 4 to drive the triangular push plate 41 to move towards the metal spring 3. After the triangular push plate 41 moves, it can press the top of the metal spring 3 into the recessed groove 25, so that the metal spring 3 cannot hook the coiled copper wire harness, making it easy for the staff to quickly remove the copper wire harness from the top of the barbed metal spring 3 for easy replacement.

[0038] The implementation principle of a wheel speed sensor terminal in this application embodiment is as follows:

[0039] During installation, the metal connector 2 can be inserted into the mounting hole 11 of the plastic frame 1. As the metal connector 2 is continuously inserted, the metal flange 22 can push open the top plastic elastic clip 12 and pass through the bottom of the plastic elastic clip 12 to enter one side of the plastic elastic clip 12 until the retaining ring 23 is completely pressed against the matching mounting hole 11. At this time, the retaining ring 23 and the metal flange 22 can limit the plastic elastic clip 12 in the middle from both sides, thereby locking the metal connector 2 into the plastic frame 1, so that the metal pins 21 and other components in the terminal are not easy to loosen after external force collision.

[0040] Next, the coiled copper wire bundle is inserted between the clamping opening 24 and the mounting hole 11 of the metal connector 2 to make a preliminary connection between the terminal and the copper wire bundle. The barbed metal spring 3 can hook the coiled copper wire bundle in the clamping opening 24, thereby preventing the copper wire bundle from falling out of the terminal. Subsequently, the workers can glue or injection mold the copper wire bundle end connected to the plastic frame 1.

[0041] When it is necessary to disassemble the copper wire harness inside the terminal, the movable rod 4 can be pushed into the mounting hole 11, thereby causing the movable rod 4 to drive the triangular push plate 41 to move towards the metal spring 3. After the triangular push plate 41 moves, it can press the top of the metal spring 3 into the recessed groove 25, so that the metal spring 3 cannot hook the coiled copper wire harness, making it easy for the staff to quickly remove the copper wire harness from the top of the barbed metal spring 3 for easy replacement.

[0042] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.

Claims

1. A wheel speed sensor terminal, comprising a plastic frame (1) and a metal connector (2), and a snap-fit ​​mechanism disposed between the plastic frame (1) and the metal connector (2), characterized in that: The plastic frame (1) has two sets of mounting holes (11) for the metal connector (2) to pass through; The snap-fit ​​mechanism includes two sets of plastic elastic snap-fit ​​bodies (12) fixedly disposed on the top of the plastic frame (1), a metal flange (22) fixedly disposed on the top of one end of the metal connector (2) for passing through the plastic elastic snap-fit ​​bodies (12), and a retaining ring (23) fixedly disposed on the top of the other end of the metal connector (2) and slidably connected in the matching mounting hole (11). The plastic elastic snap-fit ​​bodies (12) are engaged and abutted between the metal flange (22) and the retaining ring (23). The metal flange (22) end of the metal connector (2) is fixedly provided with a metal pin (21) extending to the outside of the plastic frame (1). The other end of the metal connector (2) is provided with a clamping port (24) for connecting into a coiled copper wire harness.

2. The wheel speed sensor terminal according to claim 1, characterized in that: The plastic frame (1) has two sets of clearance grooves (13) on both sides of its top, and the plastic elastic clip (12) is located in the clearance grooves (13) of the plastic frame (1).

3. A wheel speed sensor terminal according to claim 1, characterized in that: The clamping opening (24) of the metal connector (2) is provided with several barbed metal springs (3) at the bottom.

4. A wheel speed sensor terminal according to claim 3, characterized in that: The clamping port (24) of the metal connector (2) has a recessed groove (25) at the bottom, and several metal springs (3) are fixedly connected in the recessed groove (25) of the metal connector (2), with the top of the metal springs (3) extending to the outside of the recessed groove (25).

5. A wheel speed sensor terminal according to claim 4, characterized in that: One end of the metal connector (2) is provided with a limiting hole (26) that communicates with the sinking groove (25).

6. A wheel speed sensor terminal according to claim 5, characterized in that: A movable rod (4) is slidably provided in the limiting hole (26) of the metal connector (2), and one end of the movable rod (4) extends to the outside of the plastic frame (1).

7. A wheel speed sensor terminal according to claim 6, characterized in that: One end of the movable rod (4) is fixedly provided with a triangular push plate (41) for pressing the top of the metal spring (3) into the sink groove (25) after the movable rod (4) moves.

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