Vehicle body height sensor capable of automatically identifying and filtering

Abstract

The utility model relates to a vehicle body height sensor capable of automatically identifying and filtering. The vehicle body height sensor comprises a shell, an upper cover, a support plate, a locking cover, a water seal part, a rotating shaft, a circuit board and a swing arm assembly. The main purpose of the utility model is to enable the housing and the upper cover to be combined to form a closed mounting cavity through changing the structure of the sensor housing, thereby improving the waterproof effect of the sensor, and the rotating shaft is connected to the upper cover through the limiting rotation of the locking cover and is sealed through the water seal member, thereby improving the waterproof effect, enabling the rotating shaft to rotate sensitively without clamping stagnation, and improving the reliability of the sensor. When the swing arm assembly is folded and drives the rotating shaft to rotate, the magnetic field, penetrating through the Hall chip, of the magnetic ring changes accordingly, the rotating angle of the rotating shaft is automatically recognized by the Hall chip, and therefore the change of the height of the vehicle body is detected.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a vehicle body height sensor with automatic identification and filtering. 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 up and down 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.

[0003] Traditional vehicle height sensors have the risk of water leakage. For example, patent number CN201220535061.4 discloses a vehicle height sensor in which a cover is provided at the bottom of the outer shell to protect the inside of the sensor, and the sensor is sealed with a sealing resin, that is, a layer of resin is attached to the cover at the bottom of the outer shell. Since the resin shrinks when it cures, the outer shell still has the risk of water leakage, thereby affecting the service life of the sensor. Utility Model Content

[0004] In order to overcome the shortcomings of the background technology, the technical solution adopted by the utility model is: a vehicle height sensor with automatic identification and filtering, including a shell, an upper cover, a bracket plate, a locking cover, a water seal, a rotating shaft, a circuit board and a swing arm assembly. The shell is connected to the bracket plate through the upper cover, and a sealed installation cavity is formed between the upper cover and the shell. A pin piece is provided in the shell, one end of the pin piece is combined with the shell to form a socket part, and the other end extends into the installation cavity and is electrically connected to the circuit board. A Hall chip is provided on the side of the circuit board close to the socket part, the upper cover is rotatably connected to the rotating shaft, and the rotating shaft is sealed to the shell through a water seal. The upper cover is threadedly connected to a locking cover for fixing the water seal, the rotating shaft is rotatably connected between the upper cover and the locking cover, a magnetic ring corresponding to the Hall chip is provided at the bottom of the rotating shaft, and a swing arm assembly is connected to the top of the rotating shaft.

[0005] By adopting the above technical solution, by changing the structure of the sensor outer shell, the outer shell and the upper cover are combined to form a closed installation cavity, thereby improving the waterproof effect of the sensor. The rotating shaft is connected to the upper cover through the limited rotation of the locking cover and is sealed by the water seal. While improving the waterproof effect, the rotating shaft rotates sensitively and without jamming. When the swing arm assembly is folded and drives the rotating shaft to rotate, the magnetic field of the magnetic ring passing through the Hall chip changes accordingly, and the Hall chip automatically identifies the rotation angle of the rotating shaft, thereby detecting the change in the height of the vehicle body.

[0006] The utility model is further configured that the upper cover is provided with a cylindrical portion directly above the Hall chip, the rotating shaft is coaxially distributed on the cylindrical portion, and the cylindrical portion is provided with an external thread, and the locking cover is threadedly connected to the upper cover through the cylindrical portion.

[0007] Furthermore, the rotating shaft is provided with a step portion, a water seal is provided between the locking cover and the step portion, and a positioning ring is provided between the cylindrical portion and the step portion.

[0008] Furthermore, reinforcing ribs connected to the cylindrical portion are provided on both sides of the upper cover.

[0009] By adopting the above technical solution, the upper cover adopts a metal casting process, and an external thread is tapped on the top of the cylindrical part for threaded connection to the locking cover. The positioning of the cylindrical part improves the installation accuracy, so that the water seal, rotating shaft, and positioning ring are coaxially distributed on the cylindrical part, and the structural strength of the upper cover is improved by reinforcing ribs.

[0010] The utility model is further configured that a mounting portion is provided on the periphery of the shell, and a pre-installed nut is provided inside the mounting portion, the bracket plate and the upper cover are provided with mounting holes corresponding to the pre-installed nuts, and the shell is threadedly connected to the upper cover and the bracket plate in sequence through the pre-installed nuts.

[0011] Furthermore, a sealing ring is provided between the outer shell and the upper cover, and the outer shell is provided with a rectangular groove for accommodating the sealing ring.

[0012] Using the above technical solution, the pre-installed nut is a copper nut, which is pre-installed in the mold before the shell is injected. The shell is provided with three groups of mounting parts, and each group of mounting parts is provided with a pre-installed nut. The screws pass through the bracket plate, the upper cover, and the mounting part in sequence and are threadedly connected to the pre-installed nut. The overall structural design is reasonable and easy to install.

[0013] The utility model is further configured that the swing arm assembly comprises a swing arm, a connecting rod and an outer bracket, the rotating shaft is fixedly connected to the swing arm, and the swing arm is connected to the outer bracket via a connecting rod ball joint.

[0014] By adopting the above technical solution, the bracket plate is used to be fixed on the vehicle body, and the outer bracket is fixed on the lower cantilever of the vehicle. The ball joint structure can compensate for the installation error of the bracket plate and the outer bracket. It has a wide range of applications. When the height of the vehicle body changes, the positional relationship between the bracket plate and the outer bracket changes accordingly. The outer bracket drives the shaft to rotate through the connecting rod and the swing arm, and the change in the height of the vehicle body is detected by the rotation angle of the shaft.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The shaft is connected to the upper cover through the limited rotation of the locking cover and sealed by the water seal, which improves the waterproof effect while the shaft rotates sensitively without jamming;

[0017] 2. By changing the structure of the sensor housing, the housing and the upper cover can form a closed installation cavity, thereby improving the waterproof effect of the sensor.

[0018] The embodiments of the utility model are further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a top view of the utility model;

[0020] Figure 2 For the utility model Figure 1 Sectional view of the A direction view;

[0021] Figure 3 For the utility model Figure 2 A partial enlarged view of the B direction view;

[0022] Figure 4 A three-dimensional diagram of the housing of the utility model;

[0023] Figure 5 It is a three-dimensional diagram of the upper cover of the utility model;

[0024] Among them: 1-housing, 2-upper cover, 3-bracket plate, 4-locking cover, 5-water seal, 6-rotating shaft, 7-circuit board, 8-swing arm assembly, 9-pin assembly, 10-Hall chip, 11-magnetic ring, 12-positioning ring, 13-pre-installed nut, 14-sealing ring, 15-installation cavity, 16-socket part, 17-installation part, 18-rectangular groove, 21-cylindrical part, 22-reinforcement rib, 23-installation hole, 61-step part, 81-swing arm, 82-connecting rod, 83-external bracket; DETAILED DESCRIPTION

[0025] like Figure 1 , 2 As shown, the present embodiment provides a vehicle height sensor with automatic identification and filtering, comprising a housing 1, an upper cover 2, a bracket plate 3, a locking cover 4, a water seal 5, a rotating shaft 6, a circuit board 7 and a swing arm assembly 8. The housing 1 is connected to the bracket plate 3 through the upper cover 2, a sealed installation cavity 15 is formed between the upper cover 2 and the housing 1, a pin member 9 is provided in the housing 1, one end of the pin member 9 is combined with the housing 1 to form a socket portion 16, and the other end extends into the installation cavity 15 and is electrically connected to the circuit board 7, a Hall chip 10 is provided on one side of the circuit board 7 close to the socket portion 16, the upper cover 2 is rotatably connected to the rotating shaft 6, the rotating shaft 6 is sealed and connected to the housing 1 through the water seal 5, the upper cover 2 is threadedly connected to the locking cover 4 for fixing the water seal 5, the rotating shaft 6 is rotatably connected between the upper cover 2 and the locking cover 4, a magnetic ring 11 corresponding to the Hall chip 10 is provided at the bottom of the rotating shaft 6, and a swing arm assembly 8 is connected to the top of the rotating shaft 6.

[0026] Combination Figure 3 , 5As shown, in this embodiment, the upper cover 2 is located directly above the Hall chip 10 and is provided with a cylindrical portion 21, the rotating shaft 6 is coaxially distributed on the cylindrical portion 21, and the cylindrical portion 21 is provided with an external thread, the locking cover 4 is threadedly connected to the upper cover 2 through the cylindrical portion 21, the rotating shaft 6 is provided with a step portion 61, a water seal 5 is provided between the locking cover 4 and the step portion 61, a positioning ring 12 is provided between the cylindrical portion 21 and the step portion 61, and reinforcing ribs 22 connected to the cylindrical portion 21 are provided on the front and back sides of the upper cover 2. The upper cover 2 adopts a metal casting process, and an external thread is tapped at the top of the cylindrical portion 21 for threaded connection with the locking cover 4. The positioning of the cylindrical portion 21 improves the installation accuracy, so that the water seal 5 and the rotating shaft 6 are coaxially distributed on the cylindrical portion 21, and the structural strength of the upper cover 2 is improved by the reinforcing ribs 22.

[0027] Combination Figure 4 As shown, in this embodiment, a mounting portion 17 is provided on the periphery of the shell 1, and a pre-installed nut 13 is provided in the mounting portion 17, the bracket plate 3 and the upper cover 2 are provided with mounting holes 23 corresponding to the pre-installed nut 13, the shell 1 is threadedly connected with the upper cover 2 and the bracket plate 3 in sequence through the pre-installed nut 13, a sealing ring 14 is provided between the shell 1 and the upper cover 2, the shell 1 is provided with a rectangular groove 18 for placing the sealing ring 14, the pre-installed nut 13 is a copper nut, which is pre-installed in the mold before the shell 1 is injection molded, the shell 1 is provided with three groups of mounting portions 17, and each group of mounting portions 17 is provided with a pre-installed nut 13, screws are sequentially passed through the bracket plate 3, the upper cover 2, and the mounting portion 17 and are threadedly connected to the pre-installed nut 13, the overall structural design is reasonable, and it is convenient to install.

[0028] In this embodiment, the swing arm assembly 8 includes a swing arm 81 , a connecting rod 82 and an outer bracket 83 . The rotating shaft 6 is fixedly connected to the swing arm 81 , and the swing arm 81 is connected to the outer bracket 83 via a ball joint through the connecting rod 82 .

[0029] The working principle of the utility model is that the circuit board 7 is connected to the external circuit through the socket part 16, the bracket plate 3 is used to be fixed on the vehicle body, and the outer bracket 83 is fixed on the lower cantilever of the vehicle. When the height of the vehicle body changes, the positional relationship between the bracket plate 3 and the outer bracket 83 changes accordingly. At this time, the swing arm 81 drives the rotating shaft 6 to rotate, and the magnetic field of the magnetic ring 11 at the bottom of the rotating shaft 6 passing through the Hall chip 10 also changes accordingly. The change in the vehicle body height is detected by the rotation angle of the rotating shaft 6, and correction data is provided for the vehicle to adjust the vehicle body height and the headlight position.

[0030] 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 with automatic identification and filtering, characterized in that: The invention comprises a housing (1), an upper cover (2), a bracket plate (3), a locking cover (4), a water seal (5), a rotating shaft (6), a circuit board (7) and a swing arm assembly (8); the housing (1) is connected to the bracket plate (3) via the upper cover (2); a sealed installation cavity (15) is formed between the upper cover (2) and the housing (1); a pin member (9) is provided in the housing (1); one end of the pin member (9) is combined with the housing (1) to form a socket portion (16); the other end extends into the installation cavity (15) and is electrically connected to the circuit board (7). ), a Hall chip (10) is provided on one side of the circuit board (7) near the socket portion (16), the upper cover (2) is rotatably connected to a rotating shaft (6), the rotating shaft (6) is sealed and connected to the housing (1) through a water seal (5), the upper cover (2) is threadedly connected to a locking cover (4) for fixing the water seal (5), the rotating shaft (6) is rotatably connected between the upper cover (2) and the locking cover (4), a magnetic ring (11) corresponding to the Hall chip (10) is provided at the bottom of the rotating shaft (6), and a swing arm assembly (8) is connected to the top of the rotating shaft (6).

2. The vehicle height sensor with automatic identification and filtering according to claim 1, characterized in that: The upper cover (2) is provided with a cylindrical portion (21) located directly above the Hall chip (10), the rotating shaft (6) is coaxially distributed on the cylindrical portion (21), and the cylindrical portion (21) is provided with an external thread, and the locking cover (4) is threadedly connected to the upper cover (2) via the cylindrical portion (21).

3. The vehicle height sensor with automatic identification and filtering according to claim 2, characterized in that: The rotating shaft (6) is provided with a step portion (61), the water seal (5) is arranged between the locking cover (4) and the step portion (61), and a positioning ring (12) is arranged between the cylindrical portion (21) and the step portion (61).

4. The vehicle height sensor with automatic identification and filtering according to claim 3, characterized in that: Reinforcing ribs (22) connected to the cylindrical portion (21) are provided on both sides of the upper cover (2).

5. The vehicle height sensor with automatic identification and filtering according to claim 1, characterized in that: The outer periphery of the housing (1) is provided with a mounting portion (17), and a pre-installed nut (13) is provided inside the mounting portion (17); the support plate (3) and the upper cover (2) are provided with mounting holes (23) corresponding to the pre-installed nut (13); the housing (1) is threadedly connected to the upper cover (2) and the support plate (3) in sequence via the pre-installed nut (13).

6. The vehicle height sensor with automatic identification and filtering according to claim 5, characterized in that: A sealing ring (14) is provided between the outer shell (1) and the upper cover (2), and the outer shell (1) is provided with a rectangular groove (18) for accommodating the sealing ring (14).

7. The vehicle height sensor with automatic identification and filtering according to claim 1, characterized in that: The swing arm assembly (8) comprises a swing arm (81), a connecting rod (82) and an outer bracket (83); the rotating shaft (6) is fixedly connected to the swing arm (81); and the swing arm (81) is connected to the outer bracket (83) via a connecting rod (82) through a ball joint.

Images