CN216115840U

CN216115840U - Sensor structure for detecting seat position

Info

Publication number: CN216115840U
Application number: CN202122078540.XU
Authority: CN
Inventors: 邱侃
Original assignee: Kunshan Golden Light Electronics Technology Co ltd
Current assignee: Kunshan Golden Light Electronics Technology Co ltd
Priority date: 2021-08-31
Filing date: 2021-08-31
Publication date: 2022-03-22
Anticipated expiration: 2031-08-31

Abstract

The utility model discloses a sensor structure for detecting the position of a seat, which comprises: the device comprises a square tube body, a PCB switch assembly, a top plug, a first end plug, a second end plug and a magnet; the inner wall at square pipe body both sides on the symmetry set up the draw-in groove, top stopper bottom and PCB switch module contact are connected, the one end of square pipe body set up first end plug and seal, the other end of square pipe body seal through the second end plug, square pipe body inside set up mobilizable magnet, PCB switch module takes place the break-make with magnet displacement in the different positions, detects magnet shift position. The metal extrusion process shell replaces a plastic shell which is generally adopted in the market, and is more favorable for a long-distance position sensor of the long shell; placing the PCB switch assembly into a metal extrusion pipe, and supporting the top of the metal extrusion pipe by using a rubber top plug to ensure that the PCB switch assembly has a fixed position in the metal extrusion pipe; the rubber top plug is supported and fixed, replaces the traditional glue pouring and fixing process, and is simpler and more economical.

Description

Sensor structure for detecting seat position

Technical Field

The utility model discloses a sensor structure for detecting a seat position, and relates to the technical field of automatic and intelligent adjustment of an automobile seat.

Background

With the development of the automobile industry and the continuous improvement of the electronization degree thereof, automobiles gradually go to automation and intellectualization so as to provide better riding experience for drivers. For a driver, the comfort of the seat is a very intuitive factor influencing the experience of the vehicle, and the adjustment of the position of the seat can provide a comfortable human posture which is convenient for operation or rest for the driver. The traditional seat needs to be adjusted manually, and is very inconvenient to use.

At present, an electric seat of an automobile mainly comprises an internal motor, a position sensor, a seat position adjusting mechanism, a motor driving circuit and a single chip microcomputer. Wherein, the motor is connected with the seat position adjusting mechanism to form a power part; the single chip microcomputer is respectively connected with the motor control circuit and the position sensor to form an automatic control part. In above each part, position sensor can measure the outside pivot of motor to send pulse signal to the singlechip, however prior art's sensor generally adopts the plastic casing, and interference immunity is weak.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks in the background art, the present invention provides a sensor structure for detecting a seat position, which has high anti-interference performance and high measurement accuracy.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows: a sensor structure for seat position detection, comprising: the device comprises a square tube body, a PCB switch assembly, a top plug, a first end plug, a second end plug and a magnet; the inner wall at square pipe body both sides on the symmetry set up the draw-in groove, top stopper bottom and PCB switch module contact are connected, the one end of square pipe body set up first end plug and seal, the other end of square pipe body seal through the second end plug, square pipe body inside set up mobilizable magnet, PCB switch module takes place the break-make with magnet displacement in the different positions, detects magnet shift position.

Further, square tubular body one side set up the bar opening, the opening on set up the connecting piece, the connecting piece be Z style of calligraphy design, its one end in square tubular body inside sets up magnet, its one end in square tubular body outside is used for connecting the seat.

Further, the square pipe body and the first and second end plugs are provided with sealing rings therebetween, and the first end plug and the second end plug are clamped with the inner wall of the square pipe body through a buckle.

Furthermore, the top plug is made of rubber materials.

Further, the PCB switch assembly includes: PCB board and inductive switch, inductive switch evenly set up along PCB board length direction.

Furthermore, the square pipe body adopts a metal extrusion pipe, and the metal extrusion pipe is made of a magnetic conductive material.

Furthermore, the magnet is parallel to the length direction of the square pipe body, the PCB switch assembly and the magnet are switched on and off at different positions during displacement, and signals are output to the single chip microcomputer through the wiring harness.

The working principle is as follows: the PCB switch board mainly includes: the Hall element, the Hall switch circuit, the Hall linear circuit, various compensation and protection circuits and the magnetic circuit component are combined. Through magnet displacement, the hall element of different positions on the whole PCB switch board acts on respectively and output signal, and the singlechip record sets for the position state commonly used, realizes the function of record adjustment seat position.

Has the advantages that: the metal extrusion process shell replaces a plastic shell which is generally adopted in the market, and is more favorable for a long-distance position sensor of the long shell; placing the PCB switch assembly into a metal extrusion pipe, and supporting the top of the metal extrusion pipe by using a rubber top plug to ensure that the PCB switch assembly has a fixed position in the metal extrusion pipe; the rubber top plug is supported and fixed, so that the traditional glue pouring and fixing process is replaced, and the rubber top plug is simpler and more economical; the metal extrusion pipe has high magnetic conductivity, and can effectively shield an external magnetic field, so that the PCB switch in the pipe only interacts with the internal sliding rail moving magnet.

Drawings

FIG. 1 is a schematic view of the external structure of the present invention;

FIG. 2 is a schematic partial cross-sectional view of the present invention;

FIG. 3 is a schematic view of a second end plug according to the present invention;

FIG. 4 is a schematic view of the internal structure of the present invention.

Detailed Description

The following describes the embodiments in further detail with reference to the accompanying drawings. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.

One embodiment is shown in FIGS. 1-4: a sensor structure for seat position detection, comprising: the device comprises a square pipe body 1, a PCB switch component 7, a top plug 2, a first end plug 3, a second end plug 4 and a magnet 5; the inner wall at 1 both sides of square pipe body on the symmetry set up draw-in

groove

6, 2 bottoms of top stopper and 7 contact connections of PCB switch module, the one end of square pipe body 1 set up first end plug 3 and seal, the other end of square pipe body 1 seal through

second end plug

4, 1 inside mobilizable magnet 5 that sets up of square pipe body, PCB switch module 7 takes place the break-make with magnet 5 displacement in different positions, detects 5 shift positions of magnet.

Square 1 one side of the pipe body set up the bar opening, the opening on set up connecting piece 10, connecting piece 10 be Z style of calligraphy design, its one end in square 1 inside of the pipe body sets up magnet 5, its one end in square 1 outside of the pipe body is used for connecting the seat.

Square pipe body 1 and first, second end plug 4 between all set up the sealing washer, first end plug 3, second end plug 4 pass through the buckle and square 1 inner wall chucking of pipe body.

The top plug 2 is made of rubber materials, and is convenient to plug in and tightly push against the PCB at the lower side.

The PCB switch assembly 7 includes: PCB board and inductive switch, inductive switch evenly set up along PCB board length direction.

The square tube body 1 is made of a metal extrusion tube made of a magnetic conductive material.

Magnet 5 and the parallel of 1 length direction of square tube body, the break-make takes place in different positions when PCB switch module 7 and magnet 5 displacement, through 8 output signal of pencil to singlechip 9.

The metal extrusion process shell replaces a plastic shell which is generally adopted in the market, and is more favorable for a long-distance position sensor of the long shell; placing the PCB switch assembly into a metal extrusion pipe, and supporting the top of the metal extrusion pipe by using a rubber top plug to ensure that the PCB switch assembly has a fixed position in the metal extrusion pipe; the rubber top plug is supported and fixed, so that the traditional glue pouring and fixing process is replaced, and the rubber top plug is simpler and more economical; the metal extrusion pipe has high magnetic conductivity, and can effectively shield an external magnetic field, so that the PCB switch in the pipe only interacts with the internal sliding rail moving magnet.

The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, several modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. A sensor structure for seat position detection, comprising: the device comprises a square tube body, a PCB switch assembly, a top plug, a first end plug, a second end plug and a magnet; the inner wall at square pipe body both sides on the symmetry set up the draw-in groove, top stopper bottom and PCB switch module contact are connected, the one end of square pipe body set up first end plug and seal, the other end of square pipe body seal through the second end plug, square pipe body inside set up mobilizable magnet, PCB switch module takes place the break-make with magnet displacement in the different positions, detects magnet shift position.

2. The sensor structure for detecting the position of the seat according to claim 1, wherein a strip-shaped opening is formed in one side of the square tube body, a connecting piece is arranged on the opening, the connecting piece is designed in a Z shape, a magnet is arranged at one end inside the square tube body, and one end outside the square tube body is used for being connected with the seat.

3. The sensor structure for detecting the position of the seat as claimed in claim 1, wherein a sealing ring is disposed between the square tube and each of the first and second end plugs, and the first and second end plugs are clamped to an inner wall of the square tube by a snap.

4. The sensor structure for seat position sensing according to claim 1, wherein said plug is made of rubber material.

5. A sensor structure for seat position sensing as claimed in claim 1, wherein said PCB switch assembly comprises: PCB board and inductive switch, inductive switch evenly set up along PCB board length direction.

6. The sensor structure for detecting the position of the seat as claimed in claim 1, wherein the square tube body is made of a metal extrusion tube made of a magnetic conductive material.