CN203365453U - ABS sensor - Google Patents
ABS sensor Download PDFInfo
- Publication number
- CN203365453U CN203365453U CN 201320489649 CN201320489649U CN203365453U CN 203365453 U CN203365453 U CN 203365453U CN 201320489649 CN201320489649 CN 201320489649 CN 201320489649 U CN201320489649 U CN 201320489649U CN 203365453 U CN203365453 U CN 203365453U
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- CN
- China
- Prior art keywords
- iron core
- shell
- abs sensor
- coil former
- magnet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model discloses an ABS sensor, which comprises an outer shell, a coil frame and a plastic base, and is characterized in that the outer shell is a stainless steel thin-walled pipe with an open upper end and a closed lower end, the upper end of the outer shell is fixedly connected with the plastic base, the coil frame is installed in an inner hole of the outer shell, an enameled wire is wound on the lower part of the coil frame, and an inner hole of the coil frame is provided with an iron core, a magnet and a supplementary iron core from bottom to top. The ABS sensor has the advantages of convenient assembly and low cost, and can greatly improve the sensitivity of the sensor.
Description
Technical field
The utility model relates to a kind of automobile sensor, what be specifically related to is a kind of automobile ABS sensor.
Background technology
Abs sensor is applied to the automotive wheel anti-lock braking system, be arranged on the automotive hub place, each of each wheel, after car moves, the iron core head of the teeth groove on the automotive hub gear ring and sensor produces the cutting magnetic line effect when relative motion, thereby cell winding produces AC sine waveform signal, pass to controller (ECU), make controller (ECU) learn the information that sensor provides under emergency braking condition, wheel is braked, thereby realized the wheel anti-lock function.Current abs sensor, structure is usually: comprise shell, coil former and plastic seat, coil former is arranged on the shell endoporus, the bottom winding enameled wire of coil former, the endoporus of coil former is equipped with iron core and magnet, and magnet size is large, because the magnet cost is high, so the sensor cost is also high; Current abs sensor structure relative complex in addition, mould drops into more, and assembling is also inconvenient, particularly after the finished product assembling, the phenomenon that parameter is unstable, antijamming capability is not strong easily occurs, and transducer sensitivity is not fine.
Summary of the invention
In view of the problem that current known technology exists, the technical problems to be solved in the utility model be to provide a kind of easy to assembly, cost is low, can significantly improve the abs sensor of transducer sensitivity.
For solving the problems of the technologies described above, the utility model takes following technical scheme to complete:
A kind of abs sensor, comprise shell, coil former and plastic seat, it is characterized in that: the stainless-steel thin-wall pipe that shell is the upper end open lower end closed, the upper end of shell is fixedly connected with plastic seat, coil former is arranged on the shell endoporus, the bottom winding enameled wire of coil former, the endoporus of coil former is equipped with iron core, magnet and supplementary iron core from the bottom up successively.
The abs sensor of technique scheme, the magnet size of moment sensor coil endoporus is diminished, its slot milling allows supplementary iron core replace, so, not only can save ferromagnetic material, reduce costs, and due to the existence that supplements iron core, have higher sensitivity during working sensor, border test factually, can improve transducer sensitivity more than 30%.In addition, shell adopts stainless-steel thin-wall pipe, and not only sensor construction becomes simply, and mould drops into also and reduces, and it is also convenient to assemble up.
As optimal technical scheme, the aspect ratio of magnet and supplementary iron core is between 3:10-3:12.
As optimal technical scheme, the endoporus of coil former freezes to tighten up with glue after the iron core of packing into, magnet and supplementary iron core.Not only easy to assembly, and good reliability.
As optimal technical scheme, described shell when the plastic seat injection mo(u)lding with together with plastic seat is cast in.Improve shell and plastic seat in conjunction with the sealing reliability in firmness and shell.
The accompanying drawing explanation
The utility model has following accompanying drawing:
Fig. 1 is structural representation of the present utility model.
Embodiment
Accompanying drawing has meaned the technical solution of the utility model and embodiment, below further describes by reference to the accompanying drawings each details and the principle of work thereof of embodiment again.
As shown in the figure, abs sensor of the present utility model, comprise shell 6, coil former 3 and plastic seat 1, the stainless-steel thin-wall pipe that shell 6 is the upper end open lower end closed, the upper end of shell 6 is fixedly connected with plastic seat 1, shell 6 when plastic seat 1 injection mo(u)lding with together with plastic seat 1 is cast in, coil former 3 is fixedly mounted on shell 6 endoporus, the bottom winding enameled wire 8 of coil former 3, the endoporus of coil former 3 is equipped with iron core 7 from the bottom up successively, magnet 5 and supplementary iron core 4, the aspect ratio of magnet 5 and supplementary iron core 4 is that the 3:11(zone of reasonableness is between 3:10-3:12), the endoporus of coil former 3 is at the iron core of packing into, after magnet and supplementary iron core, with glue 2, freeze to tighten up.
The utility model is work like this: installation of sensors is at the automotive hub place, each of each wheel, iron core head 7a is over against the teeth groove of wheel hub gear ring, after car starts, teeth groove and iron core head 7a relative motion produce the cutting magnetic line effect, the coil-induced generation marking current of enameled wire 8, then this marking current becomes AC sine waveform signal after processing of circuit, finally this AC sine waveform signal is exported and is passed to controller (ECU) by wire, make controller (ECU) can under emergency braking condition, learn the information that sensor provides, wheel is braked, thereby realize the wheel anti-lock function.
Claims (4)
1. an abs sensor, comprise shell, coil former and plastic seat, it is characterized in that: the stainless-steel thin-wall pipe that shell is the upper end open lower end closed, the upper end of shell is fixedly connected with plastic seat, coil former is arranged on the shell endoporus, the bottom winding enameled wire of coil former, the endoporus of coil former is equipped with iron core, magnet and supplementary iron core from the bottom up successively.
2. a kind of abs sensor as claimed in claim 1, it is characterized in that: the aspect ratio of magnet and supplementary iron core is between 3:10-3:12.
3. a kind of abs sensor as claimed in claim 1, it is characterized in that: the endoporus of coil former freezes to tighten up with glue after the iron core of packing into, magnet and supplementary iron core.
4. a kind of abs sensor as claimed in claim 1 is characterized in that: described shell when the plastic seat injection mo(u)lding with together with plastic seat is cast in.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320489649 CN203365453U (en) | 2013-08-12 | 2013-08-12 | ABS sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320489649 CN203365453U (en) | 2013-08-12 | 2013-08-12 | ABS sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203365453U true CN203365453U (en) | 2013-12-25 |
Family
ID=49813199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320489649 Expired - Fee Related CN203365453U (en) | 2013-08-12 | 2013-08-12 | ABS sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203365453U (en) |
-
2013
- 2013-08-12 CN CN 201320489649 patent/CN203365453U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20140812 |
|
| EXPY | Termination of patent right or utility model |