Positioning device based on proximity switch
By using proximity switches and redundant detection mechanisms, the problem of lack of detection in long-stroke electric adjustment columns has been solved, achieving highly reliable and anti-interference position judgment, avoiding incomplete adjustment or jamming, and improving driving safety.
Patent Information
- Application Number
- CN202520660088.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-01-30
- Estimated Expiration
- 2035-04-09
AI Technical Summary
The existing long-stroke electric adjustment column lacks detection measures after extension and retraction, which can lead to incomplete adjustment or jamming, affecting driving safety.
A positioning device based on proximity switches is adopted, which combines inductive proximity switches and redundant detection mechanisms. The status of the steering column is determined by sensing the position change of the metal column. If the change is consistent with the Hall signal, it is considered normal; otherwise, countermeasures are triggered.
It improves system reliability, reduces the risk of single sensor failure, has strong anti-interference capabilities, ensures accurate position determination, and can enhance functionality without large-scale system modifications.
Smart Images
Figure CN223850669U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of automobile accessories, and particularly relates to a positioning device based on proximity switch. BACKGROUND
[0002] The existing long-stroke electric adjusting column has no detection measure after the column is stretched and unfolded, and only relies on the predetermined program to realize the stretching and hiding function, so that the adjusting may not be in place or stuck, which greatly affects the driving safety.
[0003] Therefore, we propose a positioning device based on proximity switch to solve the above problems. CONTENT OF THE UTILITY MODEL
[0004] The utility model aims at solving the problem that there is no detection measure after the column is stretched and unfolded, and only relies on the predetermined program to realize the stretching and hiding function, so that the adjusting may not be in place or stuck, which greatly affects the driving safety, and proposes a positioning device based on proximity switch.
[0005] In order to achieve the above purpose, the utility model adopts the following technical scheme:
[0006] A positioning device based on proximity switch comprises:
[0007] A column shell and a column sleeve installed in the column shell;
[0008] An installation port is arranged on the column shell, and a proximity switch is installed in the installation port, and a power line is connected to the proximity switch;
[0009] A protection mechanism is arranged on the outside of the proximity switch, and is used for protecting the proximity switch.
[0010] Preferably, the protection mechanism comprises a protective cover composed of a left half shell and a right half shell.
[0011] Preferably, the top of the left half shell and the right half shell is provided with an arc-shaped port, and the outside of the power line is in contact with the inner wall of the two arc-shaped ports.
[0012] Preferably, two first connecting blocks are fixedly installed on the left half shell, and the side of the two first connecting blocks is fixedly installed with an insertion block.
[0013] Preferably, two second connecting blocks are fixedly installed on the right half shell, and the side of the two first connecting blocks is respectively in contact with the side of the two second connecting blocks.
[0014] Preferably, the two second connecting blocks are provided with insertion holes, and the two insertion blocks are respectively penetrated through the two insertion holes.
[0015] Preferably, the two insertion blocks are provided with reset grooves, and reset blocks are slidably installed in the two reset grooves.
[0016] Preferably, one end of a spring is fixedly installed on the inner wall of the reset groove, and the other end of the spring is fixedly connected with the reset block.
[0017] Compared with the prior art, the positioning device based on the proximity switch has the following advantages:
[0018] 1. High reliability: the risk caused by the failure of a single sensor is effectively reduced through a redundant detection mechanism, and the overall reliability of the system is improved.
[0019] 2. Strong anti-interference ability: the inductive proximity switch has strong anti-electromagnetic interference ability and anti-oil pollution ability due to its electromagnetic induction principle and design structure, is not affected by oil and the like, and can adapt to complex environments.
[0020] 3. Accurate position determination: the accurate identification of the position of the steering column is ensured by combining two different detection methods, and the influence of accumulated errors is avoided.
[0021] 4. Easy to implement: the function can be improved without large-scale modification of the existing system, and the implementation cost is reduced. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 A structure diagram of a positioning device based on a proximity switch is provided for the utility model;
[0023] Figure 2 A three-dimensional structure diagram of a positioning device based on a proximity switch is provided for the utility model;
[0024] Figure 3 An enlarged structure diagram of part A of the positioning device based on the proximity switch is provided for the utility model; Figure 2
[0025] Figure 4 A structure diagram of a first connecting block, a second connecting block, an insertion block and a reset block of the positioning device based on the proximity switch is provided for the utility model.
[0026] In the figure: 1, column shell; 2, mounting port; 3, proximity switch; 4, power line; 5, left half shell; 6, right half shell; 7, first connecting block; 8, second connecting block; 9, arc-shaped port; 10, insertion hole; 11, insertion block; 12, reset groove; 13, reset block. DETAILED DESCRIPTION
[0027] The technical solutions in the embodiments will be described clearly and completely below with reference to the drawings in the embodiments. Obviously, the described embodiments are only part of the embodiments of the present embodiments, rather than all the embodiments.
[0028] Embodiment one
[0029] With reference to Figures 1-4 A positioning device based on a proximity switch, comprising:
[0030] A pipe column shell 1 and a pipe column sleeve installed in the pipe column shell 1;
[0031] An installation port 2 is arranged on the pipe column shell 1, a proximity switch 3 is installed in the installation port 2, and a power line 4 is connected to the proximity switch 3;
[0032] A protection mechanism is arranged outside the proximity switch 3 and used for protecting the proximity switch 3.
[0033] In the embodiment, the protection mechanism comprises a protective cover, the protective cover is composed of a left half shell 5 and a right half shell 6, arc-shaped openings 6 are arranged at the top of the left half shell 5 and the right half shell 6, the outer side of the power line 4 is in contact with the inner walls of the two arc-shaped openings 6, two first connecting blocks 7 are fixedly installed on the left half shell 5, plug blocks 11 are fixedly installed on one side of the two first connecting blocks 7, two second connecting blocks 8 are fixedly installed on the right half shell 6, one side of the two first connecting blocks 7 is in contact with one side of the two second connecting blocks 8 respectively, plug holes 10 are arranged on the two second connecting blocks 8, one side of the two plug blocks 11 penetrates the two plug holes 10 respectively, reset grooves 12 are arranged on one side of the two plug blocks 11, reset blocks 13 are slidably installed in the two reset grooves 12, the reset blocks 13 are in contact with one side of the second connecting blocks 8 away from the first connecting blocks 7, one end of a spring is fixedly installed on the inner wall of one side of the reset groove 12, and the other end of the spring is fixedly connected with the reset block 13.
[0034] Specifically, the two reset blocks 13 are pressed, the two reset blocks 13 press the two springs, then the two plug blocks 11 are inserted through the two plug holes 10, the reset blocks 13 are released, the spring is reset, the reset blocks 13 are extended, the plug blocks 11 are prevented from being separated from the plug holes 10, and the left half shell 5 and the right half shell 6 are combined and installed outside the proximity switch 3 to protect the proximity switch 3.
[0035] In this embodiment, the inductive proximity switch 3 is installed on the column shell 1 of the steering column, which can determine whether the steering column reaches a predetermined state by sensing the position change of the metal column, and transmit signals to the controller. When the motor hall signal and the proximity switch 3 signal are consistent, the system determines normal (i.e. the steering wheel is in the locked state); if they are inconsistent, the system determines an error and triggers the corresponding countermeasures (limit power, pop up fault code, etc.).
[0036] Embodiment two
[0037] The difference between the embodiment one and the embodiment two is that the arc-shaped sealing pads are fixedly installed in the two arc-shaped openings 9 to increase the sealing property of the connection.
[0038] The rest is the same as the embodiment one.
[0039] The above is only the preferred specific implementation of the embodiment, but the protection scope of the embodiment is not limited to this. Any person skilled in the art can make equivalent replacement or change according to the technical scheme and the utility model concept of the embodiment within the technical range disclosed by the embodiment, which should be covered in the protection scope of the embodiment.
Claims
1. A proximity switch based positioning device, characterized in that, The utility model relates to a kind of protective mechanism of proximity switch, including: Pipe column shell (1) and pipe column sleeve installed in pipe column shell (1); Mounting port (2) is equipped on pipe column shell (1), proximity switch (3) is installed in mounting port (2), and power cord (4) is connected on proximity switch (3); Protective mechanism is equipped on the outside of proximity switch (3), for the protection of proximity switch (3).
2. A proximity switch based positioning device according to claim 1, characterized in that The protective mechanism includes protective cover, and protective cover is composed of left half shell (5) and right half shell (6).
3. A proximity switch based positioning device according to claim 2, characterized in that The top of left half shell (5) and right half shell (6) is all set with arc mouth (9), and the outside of power cord (4) is in contact with the inner wall of two arc mouths (9).
4. A proximity switch based positioning device according to claim 3, characterized in that Two first connecting blocks (7) are fixedly installed on the left half shell (5), and the side of two first connecting blocks (7) is fixedly installed with plug block (11).
5. A proximity switch based positioning device according to claim 4, characterized in that Two second connecting blocks (8) are fixedly installed on the right half shell (6), and the side of two first connecting blocks (7) is respectively in contact with the side of two second connecting blocks (8).
6. A proximity switch based positioning device according to claim 5, characterized in that Plug hole (10) is set on two second connecting blocks (8), and the side of two plug blocks (11) is respectively penetrated two plug holes (10).
7. A proximity switch based positioning device according to claim 6, characterized in that The side of two plug blocks (11) is all set with reset slot (12), and reset block (13) is slidably installed in two reset slots (12), and reset block (13) is in contact with the side of second connecting block (8) away from first connecting block (7).
8. A proximity switch based positioning device according to claim 7, characterized in that The side of reset slot (12) inner wall is fixedly installed with one end of spring, and the other end of spring is fixedly connected with reset block (13).