CN216081297U

CN216081297U - Commercial vehicle height sensor

Info

Publication number: CN216081297U
Application number: CN202121974848.6U
Authority: CN
Inventors: 张建红; 戴禾敏; 石振宇
Original assignee: Zhejiang Sensen Automobile Parts Co ltd
Current assignee: Zhejiang Sensen Automobile Parts Co ltd
Priority date: 2021-08-23
Filing date: 2021-08-23
Publication date: 2022-03-18
Anticipated expiration: 2031-08-23

Abstract

The utility model discloses a height sensor for a commercial vehicle, which comprises: the automobile swing arm comprises a shell, wherein a pin shaft is arranged on the shell, one end of the pin shaft is connected with a swing arm, one end of the swing arm is connected with a joint bearing assembly, the swing arm is hinged with a connecting rod through the joint bearing assembly, a powerful magnet is installed on the end face of the other end of the pin shaft, a Hall integrated circuit close to the magnet is arranged in the shell, and the Hall integrated circuit is connected with an automobile ECU. The height sensor for the commercial vehicle provided by the utility model has the advantages of simple structure, reliability, durability, higher precision and good electrical appliance isolation performance, and can directly convert angle change into an electric signal through a magnetic field.

Description

Commercial vehicle height sensor

Technical Field

The utility model belongs to the technical field of sensors, and particularly relates to a height sensor for a commercial vehicle.

Background

The height sensor is used in an air suspension and an active suspension on an automobile, is used for detecting the height of a vehicle body, and is generally a photoelectric sensor; the sensor body is installed at the end of the vehicle body, the up-and-down motion of the suspension is converted into the rotation motion of the magnetic disk slot through the control connecting rod, the vehicle height is detected by the change of the output of the optical breaker, and the change is converted into an electric signal to be input into the control device.

However, in the prior art, most of the conventional vehicle height sensors convert the angle change into the reciprocating linear motion through the crank-link mechanism arranged in the sensor shell, and then convert the reciprocating linear motion into the electric signal, so that the structure is complex, and the processing error and the durable wear error of the crank-link mechanism inside can directly influence the accuracy of the signal.

Disclosure of Invention

In order to solve the problems, the utility model aims to provide a commercial vehicle height sensor which has a simple structure, can directly convert angle change into an electric signal through a magnetic field, is reliable and durable, and has higher precision and good electrical isolation performance.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a commercial car altitude sensor includes the casing, be equipped with the round pin axle on the casing, the one end of round pin axle is connected with the swing arm, the one end of swing arm is connected with joint bearing assembly, the swing arm articulates through joint bearing assembly has the connecting rod, install strong magnet on the terminal surface of round pin axle other end, be equipped with the hall chip that is close mutually with the magnet in the casing, hall chip installs on hall integrated circuit, hall integrated circuit is connected with car ECU.

The improved spring pin is characterized in that a cover plate is arranged in the shell, an oil seal is arranged in the shell and is matched with the outer wall of the pin shaft, a copper sleeve is arranged in the shell and is matched with the outer wall of the pin shaft, a spring gasket is sleeved on the pin shaft, four hollow rivets are distributed on two sides of the shell in a rectangular mode, a first nut is arranged at one end of the pin shaft, a socket assembly is arranged on the shell, a bushing is arranged in the shell, and the inner wall of the bushing is matched with the pin shaft.

The joint bearing assembly is fixedly provided with a second nut, the second nut is in threaded connection with the connecting rod, the shell is fixedly provided with four U-shaped mounting frames, and the two corresponding hollow rivets are fixedly connected with the two corresponding U-shaped mounting frames.

The bottom end of the pin shaft is fixedly provided with a threaded rod, the threaded rod is in threaded connection with the first nut, and the same thread glue is arranged on the threaded rod and the first nut.

And a third nut is arranged on the joint bearing assembly in a threaded manner and is positioned below the swing arm.

A round hole is formed in the top of the swing arm, and the pin shaft penetrates through the round hole.

The height sensor for the commercial vehicle provided by the utility model has the following beneficial effects: according to the utility model, through arranging the height sensing mechanism, when the connecting rod pulls the swing arm to swing, the pin shaft drives the powerful magnet to move, the change of a magnetic field can be sensed through the Hall integrated circuit and then converted into a point pressure signal, and the device has the advantages of simple structure, capability of directly converting the angle change into an electric signal through the magnetic field, reliability, durability, higher precision and good electrical appliance isolation performance.

The utility model is further described with reference to the following figures and detailed description.

Drawings

FIG. 1 is a front sectional structural view of a height sensor of a commercial vehicle according to the present invention;

FIG. 2 is an enlarged schematic view of portion A of FIG. 1;

FIG. 3 is a side sectional structural view of the height sensor of the commercial vehicle of the present invention.

Detailed Description

The following examples are given to illustrate the present invention and should not be construed as limiting the scope of the present invention.

As shown in fig. 1-3, this embodiment discloses a commercial car height sensor includes casing 1, be equipped with round pin axle 2 on the casing 1, the one end of round pin axle 2 is connected with swing arm 3, the one end of swing arm 3 is connected with joint bearing subassembly 4, swing arm 3 has connecting rod 5 through joint bearing subassembly 4 is articulated, install powerful magnet 6 on the terminal surface of the 2 other ends of round pin axle, be equipped with the hall chip that is close with the magnet in the casing 1, hall chip installs at hall integrated circuit 7, hall integrated circuit 7 is connected with car ECU.

The hall ic 7 can sense the position change of the strong magnet 6 while the swing arm 3 rotates, thereby generating an electric signal.

As shown in fig. 1, a cover plate 8 is arranged in a shell 1, a cover plate 9 is arranged in the shell 1, an oil seal 10 is arranged in the shell 1, the oil seal 10 is matched with the outer wall of a pin shaft 2, a copper sleeve 11 is arranged in the shell 1, the copper sleeve 11 is matched with the outer wall of the pin shaft 2, a spring gasket 12 is sleeved on the pin shaft 2, four hollow rivets 13 are distributed on two sides of the shell 1 in a rectangular mode, a first nut 14 is arranged at one end of the pin shaft 2, a socket assembly 15 is arranged on the shell 1, a bushing 16 is arranged in the shell 1, and the inner wall of the bushing 16 is matched with the pin shaft 2.

As shown in fig. 2, a second nut is fixedly mounted on the joint bearing assembly 4, the second nut is in threaded connection with the connecting rod 5, four U-shaped mounting frames are fixedly mounted on the shell 1, and two corresponding hollow rivets 13 are fixedly connected with two corresponding U-shaped mounting frames.

As shown in fig. 1, a threaded rod is fixedly mounted at the bottom end of the pin shaft 2, the threaded rod is in threaded connection with the first nut 14, and the same thread glue is arranged on the threaded rod and the first nut 14.

Through the mutual cooperation of the threaded rod, the first nut 14 and the thread compound, the threaded rod and the pin shaft 2 are fixed on the swing arm 3 by rotating the first nut 14, the disassembly and the assembly are convenient, and the first nut 14 can be prevented from loosening through the thread compound.

As shown in fig. 1, a third nut is threadedly mounted on the joint bearing assembly 4, and the third nut is located below the swing arm 3.

As shown in fig. 1, a round hole is formed at the top of the swing arm 3, and the pin shaft 2 penetrates through the round hole.

The device works according to the Hall principle, a strong magnet 6 (rotor) is connected with a swing arm 3, a Hall integrated circuit 7 (stator) on a shell 1 changes according to the position of the strong magnet 6, the magnetic field passing through the Hall integrated circuit 7 changes, and the signal is converted into a voltage signal according to the angle proportion and transmitted to an ECU of an automobile.

The working principle of the commercial vehicle height sensor provided by the utility model is as follows:

the first step is as follows: when the connecting rod 5 pulls the swing arm 3 to swing, the swing arm 3 drives the shell 1 and the pin shaft 2 to move along with the shell, the pin shaft 2 drives the strong magnet 6 to move, when the strong magnet 6 moves to generate magnetic field change, the Hall integrated circuit 7 receives the magnetic field change, converts the signal into a voltage signal according to an angle proportion, and transmits the voltage signal to an ECU of an automobile, so that the automobile height sensing can be completed;

the second step is as follows: the shell 1 and the pin shaft 2 can be detached by rotating the first nut 14, and the first nut 14 can be prevented from loosening and sliding through thread glue.

Adopt above-mentioned technical scheme, through setting up high sensing mechanism, work as the connecting rod pulling swing arm and swing, the round pin axle drives powerful magnet and removes simultaneously, can perceive the change that magnetic field takes place through hall integrated circuit, then changes the point pressure signal into, has simple structure, can directly convert the angle change into the signal of telecommunication through magnetic field, and is reliable durable, and the precision is higher simultaneously, advantage that electrical apparatus barrier propterty is good.

Claims

1. The utility model provides a commercial car altitude sensor, includes the casing, be equipped with the round pin axle on the casing, its characterized in that, the one end of round pin axle is connected with the swing arm, the one end of swing arm is connected with joint bearing assembly, the swing arm articulates through joint bearing assembly has the connecting rod, install powerful magnet on the terminal surface of the round pin axle other end, be equipped with the hall chip that is close with the magnet mutually in the casing, hall chip installs on hall integrated circuit, hall integrated circuit is connected with car ECU.

2. A commercial vehicle height sensor according to claim 1, characterised in that: the improved spring pin is characterized in that a cover plate is arranged in the shell, an oil seal is arranged in the shell and is matched with the outer wall of the pin shaft, a copper sleeve is arranged in the shell and is matched with the outer wall of the pin shaft, a spring gasket is sleeved on the pin shaft, four hollow rivets are distributed on two sides of the shell in a rectangular mode, a first nut is arranged at one end of the pin shaft, a socket assembly is arranged on the shell, a bushing is arranged in the shell, and the inner wall of the bushing is matched with the pin shaft.

3. A commercial vehicle height sensor according to claim 2, wherein: the joint bearing assembly is fixedly provided with a second nut, the second nut is in threaded connection with the connecting rod, the shell is fixedly provided with four U-shaped mounting frames, and the two corresponding hollow rivets are fixedly connected with the two corresponding U-shaped mounting frames.

4. A commercial vehicle height sensor according to claim 2, wherein: the bottom end of the pin shaft is fixedly provided with a threaded rod, the threaded rod is in threaded connection with the first nut, and the same thread glue is arranged on the threaded rod and the first nut.

5. A commercial vehicle height sensor according to claim 1, characterised in that: and a third nut is arranged on the joint bearing assembly in a threaded manner and is positioned below the swing arm.

6. A commercial vehicle height sensor according to claim 1, characterised in that: a round hole is formed in the top of the swing arm, and the pin shaft penetrates through the round hole.