Vehicle body height sensor capable of burning program

Abstract

The utility model relates to a car body height sensor capable of burning a program, which comprises a framework piece, a pin piece, a shell, a circuit board and a Hall chip, the framework piece is fixedly connected with the pin piece through injection molding, the framework piece is provided with an open slot used for cutting the pin piece, the framework piece is provided with the shell through secondary injection molding, the shell is internally provided with a mounting part and a socket part, and the circuit board is arranged on the mounting part. The circuit board is arranged on the installation portion, the pin piece is provided with a pin electrically connected with the circuit board, the pin extends to the side, away from the socket portion, of the inner cavity, and the Hall chip is located on the side, close to the socket portion, of the circuit board. The main purpose of the utility model is to leave a reserved space for punching the pin piece through extending the pin piece from the jack part to one side of the shell far away from the jack part, so that the pin piece can be quickly positioned during injection molding, and the pins do not need to be positioned and fixed one by one, thereby simplifying the production difficulty and being more suitable for batch production.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a vehicle height sensor capable of burning a program. Background Art

[0002] The vehicle height sensor is a sensor that detects the relative displacement of the vehicle body and the lower cantilever or the lower bracket of the shock absorber in the upper and lower directions. It converts the change in vehicle height into the rotor rotation angle, so that the electronic control device can detect the change in vehicle height. The shell of the traditional vehicle height sensor is usually made by injection molding, and the pins are pre-placed in the mold before injection molding. When pre-embedded pins, each independent pin needs to be positioned, which increases the difficulty of production. Utility Model Content

[0003] In order to overcome the shortcomings of the background technology, the technical solution adopted by the utility model is: a vehicle height sensor with a burnable program, including a frame member, a pin member, a shell, a circuit board and a Hall chip, the frame member is fixedly connected to the pin member by injection molding, the frame member is provided with an opening groove for cutting the pin member, the frame member is formed with a shell by secondary injection molding, the shell is provided with a mounting portion and a socket portion, the circuit board is arranged in the mounting portion, the pin member is provided with a pin electrically connected to the circuit board, and the pin extends to a side of the inner cavity away from the socket portion, and the Hall chip is located on a side of the circuit board close to the socket portion.

[0004] By adopting the above technical scheme, a mold is used to inject molding on the outside of the pin part to form a skeleton part, and after the connecting part of the pin part is punched out, the shell is formed by secondary injection molding of the mold. Since the pin part extends from the socket part to the side of the shell away from the socket part, a reserved space is left for punching the pin part. The pin part can be quickly positioned during injection molding without positioning and fixing each pin one by one, which simplifies the production difficulty and is more suitable for mass production.

[0005] The utility model is further configured such that welding holes and positioning holes are respectively provided at two ends of the circuit board, and the frame member is provided with positioning columns adapted to the positioning holes.

[0006] Furthermore, the two ends of the frame member are provided with a first step surface and a second step surface, the two ends of the circuit board are respectively abutted against the first step surface and the second step surface, and the positioning column is provided on the first step surface.

[0007] By adopting the above technical solution, when installing the circuit board, the side with the Hall chip faces upwards, the two ends of the circuit board are respectively abutted against the first step surface and the second step surface, and are inserted into the positioning hole through the positioning column. At the same time, the pin part naturally passes through the welding hole to facilitate subsequent solder connection.

[0008] The utility model is further configured that the circuit board is provided with a connection terminal for burning the program between the first step surface and the second step surface.

[0009] By adopting the above technical solution, the interface end of the burning program is touched to the connection end for burning the program, and the burning method is simple and convenient.

[0010] The utility model is further configured that positioning blocks perpendicular to the direction of the opening groove are provided on both sides of the frame member.

[0011] By adopting the above technical solution, during secondary injection molding, the frame member is fixed in the mold by the positioning block and the positioning column, thereby improving the molding accuracy of the shell.

[0012] The utility model is further configured that the pin member includes pins connected side by side, and connecting parts corresponding to the positions of the opening slots are provided between adjacent pins.

[0013] By adopting the above technical solution, the pin member is provided with two connecting parts, and the skeleton member is provided with two opening grooves corresponding to the connecting parts. The structural strength of the pin member is improved through the connecting parts, and the pin member is prevented from bending and deforming during the first injection molding.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] The mold is used to inject molding on the outside of the pin part to form a skeleton part, and after the connecting part of the pin part is punched out, the mold is used for secondary injection molding to form a shell. Since the pin part extends from the socket part to the side of the shell away from the socket part, a reserved space is left for punching the pin part. The pin part is quickly positioned during injection molding, and there is no need to position and fix each pin one by one, which simplifies the production difficulty and is more suitable for mass production.

[0016] The embodiments of the utility model are further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A three-dimensional diagram of the framework of the utility model;

[0018] Figure 2 It is a three-dimensional diagram of the utility model;

[0019] Figure 3 It is a cross-sectional view of the utility model;

[0020] Figure 4 This is a schematic diagram of the structure of the utility model installed on a rotor swing arm assembly;

[0021] Among them: 1-frame member, 2-pin member, 3-housing, 4-circuit board, 5-Hall chip, 11-opening slot, 12-positioning column, 13-first step surface, 14-second step surface, 15-positioning block, 21-pin, 22-connecting part, 31-mounting part, 32-socket part, 41-welding hole, 42-positioning hole, 43-connecting end; DETAILED DESCRIPTION

[0022] like Figure 1 , 2 As shown, this embodiment provides a vehicle height sensor that can be burned with a program, including a frame member 1, a pin member 2, a shell 3, a circuit board 4 and a Hall chip 5. The frame member 1 is fixedly connected to the pin member 2 by injection molding. The frame member 1 is provided with an opening groove 11 for cutting the pin member 2. The frame member 1 is formed with a shell 3 by secondary injection molding. The shell 3 is provided with a mounting portion 31 and a socket portion 32. The circuit board 4 is arranged on the mounting portion 31. The pin member 2 is provided with a pin 21 electrically connected to the circuit board 4, and the pin 21 extends to a side of the inner cavity away from the socket portion 32. The Hall chip 5 is located on a side of the circuit board 4 close to the socket portion 32.

[0023] Combination Figure 3 As shown, in this embodiment, welding holes 41 and positioning holes 42 are respectively provided at both ends of the circuit board 4, the skeleton member 1 is provided with positioning posts 12 adapted to the positioning holes 42, the skeleton member 1 is provided with first step surfaces 13 and second step surfaces 14 at both ends, the two ends of the circuit board 4 are respectively abutted against the first step surface 13 and the second step surface 14, the positioning posts 12 are provided on the first step surface 13, and the circuit board 4 is provided with a connection terminal 43 for burning the program between the first step surface 13 and the second step surface 14.

[0024] In this embodiment, positioning blocks 15 perpendicular to the opening groove 11 are provided on both sides of the frame member 1. During secondary injection molding, the frame member 1 is fixed in the mold by the positioning blocks 15 and the positioning columns 12 to improve the molding accuracy of the shell 3.

[0025] In this embodiment, the pin component 2 includes pins connected in side by side, and a connecting portion 22 corresponding to the position of the opening groove 11 is provided between adjacent pins. The pin component 2 has three pins distributed side by side, which are respectively used for electrical connection of the VCC terminal, the GND terminal and the SIGNAL terminal. The pin component 2 has two connecting portions 22, and the skeleton component 1 has two opening grooves 11 corresponding to the connecting portions 22. The connecting portions 22 are used to improve the structural strength of the pin component 2 to prevent the pin component 2 from bending and deforming during the first injection molding.

[0026] In this embodiment, the pin member 2 includes pins connected side by side, and a connecting portion 22 corresponding to the position of the opening slot 11 is provided between adjacent pins.

[0027] The production process of the utility model is as follows: a mold is used to inject and form a skeleton member 1 on the outside of the pin member 2; a punching machine is used to punch out the connecting portion 22 of the pin member 2 to form three independent pins; a secondary injection molding is performed through the mold to form a shell 3, and a mounting portion 31 and a socket portion 32 are formed; when installing the circuit board 4, the side with the Hall chip 5 is facing upward, and the two ends of the circuit board 4 are respectively abutted against the first step surface 13 and the second step surface 14, and are inserted into the positioning hole 42 through the positioning column 12; at the same time, the pin 21 passes through the welding hole 41 and is connected by soldering; the interface end of the burning program touches the connecting end 43 and the program is burned; and subsequently, it is installed on the rotor swing arm assembly through the through holes around the shell 3. The overall structural design is reasonable and the installation is convenient.

[0028] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A vehicle height sensor capable of burning a program, characterized in that: The invention comprises a frame member (1), a pin member (2), a shell (3), a circuit board (4) and a Hall chip (5); the frame member (1) is fixedly connected to the pin member (2) by injection molding; the frame member (1) is provided with an opening groove (11) for cutting the pin member (2); the frame member (1) is formed with a shell (3) by secondary injection molding; a mounting portion (31) and a socket portion (32) are provided in the shell (3); the circuit board (4) is arranged on the mounting portion (31); the pin member (2) is provided with a pin (21) electrically connected to the circuit board (4); and the pin (21) extends to a side of the inner cavity away from the socket portion (32); and the Hall chip (5) is located on a side of the circuit board (4) close to the socket portion (32).

2. The vehicle height sensor capable of burning a program according to claim 1, characterized in that: The two ends of the circuit board (4) are respectively provided with a welding hole (41) and a positioning hole (42), and the frame member (1) is provided with a positioning column (12) matched with the positioning hole (42).

3. The vehicle height sensor capable of burning a program according to claim 2, characterized in that: The two ends of the frame member (1) are provided with a first step surface (13) and a second step surface (14); the two ends of the circuit board (4) are respectively in contact with the first step surface (13) and the second step surface (14); and the positioning column (12) is provided on the first step surface (13).

4. The vehicle height sensor capable of burning a program according to claim 3, characterized in that: The circuit board (4) is provided with a connection terminal (43) for burning a program between the first step surface (13) and the second step surface (14).

5. The vehicle height sensor capable of burning a program according to claim 1, characterized in that: Positioning blocks (15) perpendicular to the direction of the opening slot (11) are provided on both sides of the frame member (1).

6. The vehicle height sensor capable of burning a program according to claim 1, characterized in that: The pin member (2) comprises pins connected in parallel, and connecting portions (22) corresponding to the positions of the opening slots (11) are provided between adjacent pins.

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