CN2929654Y - Vehicle speed and mile sensor - Google Patents
Vehicle speed and mile sensor Download PDFInfo
- Publication number
- CN2929654Y CN2929654Y CN 200620095176 CN200620095176U CN2929654Y CN 2929654 Y CN2929654 Y CN 2929654Y CN 200620095176 CN200620095176 CN 200620095176 CN 200620095176 U CN200620095176 U CN 200620095176U CN 2929654 Y CN2929654 Y CN 2929654Y
- Authority
- CN
- China
- Prior art keywords
- motor vehicle
- speed
- magnetic bead
- rotating shaft
- odometer sensor
- 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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- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
A vehicle speed and mileage sensing device relates to a sensor which transfers the vehicle driving speed and mileage to electric signals, and transfers to a second apparatus for a displaying and measuring, wherein a wheel embedded with even magnetic balls is connected with the inner end of a rotating shaft by rivets, a dry reed pipe is equipped near the inside of the magnetic balls distributed ring and is fixed on a linking rack, an inserting plate connected with the second apparatus is welded on both ends of the dry reed pipe, the inserting plate is fixed inside the connecting rack, a sliding shaft coated outside the rotating shaft is equipped on the shell body, and both poles of the magnetic balling are distributed alternatively. Using the utility model, when the rotating shaft rotates, the magnetic balls on a rotating wheel make the dry reek pipe on and off alternatively. Once the rotating shaft rotates a circle, off times of the dry reek pipe are the same with the number of the magnetic balls, the on and off frequency signals are transferred to the second apparatus to gauge the rotating speed and rotating times. The utility model adopts an embedded magnet structure and increases the quality of output signals by separating and choosing magnetic balls, which has a reasonable structure, a stable performance, high degree reliability, a wide application, a simple craft and a low cost.
Description
Technical field
The utility model relates to a kind of travel speed with vehicle and becomes electric signal with the mileage Parameters Transformation, sends the sensor that secondary instrument shows and measures to.
Background technology
Types such as the travel speed of existing vehicle and odometer sensor have that magnetic couple is box-like, Hall magnetic inductive, photoelectric induction type and tongue tube Mageneto-sensitive type, wherein:
1. magnetic couple is box-like: because tachometer gage indicating value and magnetic field intensity are closely related, and magnetic field intensity is subjected to factor affecting such as temperature, vibrations, along with certain relaxation phenomenon can take place for the prolongation of time, thereby causes the tachometer gage error of indication.In addition, because this form is pure physical construction, distance is far away from the check point to the panel board, during flexible axle easy to wear, change that difficulty is big, cost is high.
2. Hall magnetic inductive: because Hall element is very responsive to magnetic field intensity, after sensor uses a period of time, wearing and tearing along with device, variable in distance aggravation between magnetic pole and the Hall element, loss of data can appear in the signal output of Hall element, as avoiding the appearance of this section's phenomenon, just have to increase circuit, increase cost, even also still can occur the phenomenon of quality of data difference like this.
3. photoelectric induction type: the one, the production technology more complicated, cost is higher; The 2nd, because the infiltration of machine oil or dirt causes obstructed, the component failure of light path.
4. tongue tube Mageneto-sensitive type: because what adopt is the monoblock type magnet ring, homogeneity, the consistance of magnet ring its magnetic pole field intensity when magnetizing can't guarantee, cause the poor quality of its output signal.Simultaneously and since the monoblock type magnet ring with the process of rotating shaft riveted joint in easily broken, cause its poor reliability.
Summary of the invention
The purpose of this utility model is at above-mentioned present situation, aims to provide a kind of rational in infrastructure, stable performance, reliability height, wide adaptability, the technology speed of a motor vehicle, odometer sensor simple, with low cost.
The implementation of the utility model purpose is, the speed of a motor vehicle, odometer sensor, the runner 1 that is inlaid with even number magnetic bead 2 is riveted on the inner of rotating shaft 12, tongue tube 3 is near near the inboard of magnetic bead 2 distribution circles, be fixed on the connection seat 6, tongue tube 3 two ends are welded on the inserted sheet 5 that links to each other with secondary instrument, and inserted sheet 5 is injection-moulded in the connection seat 6, be enclosed within rotating shaft 12 outer sliding bearings 10 and be set on the shell 11, " N " of magnetic bead 2, " S " utmost point are alternately arranged.
When using the utility model, when rotating under the driving of rotating shaft 12 in external force, the magnetic bead 2 on the runner 1 makes tongue tube 3 break-make alternations.Rotating shaft 12 is whenever circled, and the number of the magnetic bead of inlaying on the number of times of tongue tube 3 break-makes and the runner 12 equates.The break-make frequency signal of tongue tube 3 sends secondary instrument to by inserted sheet 5, with the rotating speed and the revolution of metering rotating shaft.
The utility model has adopted the edge magnetic structure, by the sorting to magnetic bead, the quality of output signal is improved greatly.The utility model is rational in infrastructure, stable performance, reliability height, wide adaptability, technology simple, cost is lower.
Description of drawings
Fig. 1 is the utility model structural representation
Fig. 2 is the utility model fundamental diagram
Embodiment
With reference to Fig. 1,2, the runner 1 that is inlaid with even number magnetic bead 2 is riveted on the inner of rotating shaft 12, and it is 2～100 that magnetic bead is inlayed number, can only be even number; Magnetic bead adopts neodymium iron boron, ferrite, SmCo or aluminium nickel cobalt material to make, and is shaped as circle, ellipse, fan-shaped, polygon cylinder or tubular body.The axial dimension of magnetic bead: 0.1～50mm, cross sectional area: 0.5～100mm
2, magnetic bead is inlayed distribution circle diameter: 5～200mm.Runner adopts nonmetallic materials or nonmagnetic material to make, and is shaped as disc, polygon dish type or gear shape structure.When runner and rotating shaft riveted joint, add gasket ring 8 and pad 9 up and down respectively.
Be enclosed within rotating shaft 12 outer sliding bearings 10 and be set on the shell 11, sliding bearing 10 has pad 9, packing ring 8 with rotating shaft 12 connecting portions.
Be fixed on the connection seat 6, tongue tube 3 two ends are welded with the inserted sheet 5 that links to each other with secondary instrument, and inserted sheet 5 is injection-moulded in the connection seat 6, and inserting the position has O-ring seal 7.
When using the utility model, when rotating under the driving of rotating shaft 12 in external force, the magnetic bead 2 that " N ", " S " utmost point are arranged alternately on the runner 1 makes tongue tube 3 break-make alternations.Rotating shaft 12 is whenever circled, and the number of the magnetic bead of inlaying on the number of times of tongue tube 3 break-makes and the runner 12 equates.The break-make frequency signal of tongue tube 3 sends secondary instrument to by inserted sheet 5, with the rotating speed of metering rotating shaft.For eliminating the tongue tube dither waveform of 3 break-make moments, be connected to electric capacity 4 between the tongue tube 3.
Claims (9)
1, the speed of a motor vehicle, odometer sensor, the runner (1) that it is characterized in that being inlaid with even number magnetic bead (2) is riveted on the inner of rotating shaft (12), tongue tube (3) is near near the inboard of magnetic bead (2) distribution circle, be fixed on the connection seat (6), tongue tube (3) two ends are welded on the inserted sheet (5) that links to each other with secondary instrument, inserted sheet (5) is injection-moulded in the connection seat (6), is enclosed within the outer sliding bearing (10) of rotating shaft (12) and is set on the shell (11), and " N " of magnetic bead (2), " S " utmost point are alternately arranged.
2, the speed of a motor vehicle according to claim 1, odometer sensor is characterized in that being connected between the tongue tube (3) electric capacity (4).
3, the speed of a motor vehicle according to claim 1, odometer sensor is characterized in that magnetic bead (2) is shaped as circle, ellipse, fan-shaped, polygon cylinder or tubular body.
4,, it is characterized in that the axial dimension of magnetic bead (2): 0.1～50mm, cross sectional area: 0.5～100mm according to claim 1 or the 3 described speed of a motor vehicle, odometer sensor
2
5,, it is characterized in that magnetic bead (2) adopts neodymium iron boron, ferrite, samarium to bore or aluminium nickel cobalt material according to claim 1 or the 3 described speed of a motor vehicle, odometer sensor.
6, the speed of a motor vehicle according to claim 1, odometer sensor is characterized in that runner (1) is shaped as disc, polygon dish type or gear shape structure.
7,, it is characterized in that runner (1) adopts nonmetallic materials or nonmagnetic material according to claim 1 or the 6 described speed of a motor vehicle, odometer sensor.
8, the speed of a motor vehicle according to claim 1, odometer sensor, the distribution circle profile that it is characterized in that the axis of tongue tube (3) and magnetic bead diametrically about distance＜15mm, the runner upper surface is 0.01～15mm apart from the glass tube outer wall closest approach distance of tongue tube.
9, according to claim 1 or the 8 described speed of a motor vehicle, odometer sensor, the glass tube length that it is characterized in that tongue tube (3) is 5～70mm;
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620095176 CN2929654Y (en) | 2006-01-25 | 2006-01-25 | Vehicle speed and mile sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620095176 CN2929654Y (en) | 2006-01-25 | 2006-01-25 | Vehicle speed and mile sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2929654Y true CN2929654Y (en) | 2007-08-01 |
Family
ID=38308036
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620095176 Expired - Fee Related CN2929654Y (en) | 2006-01-25 | 2006-01-25 | Vehicle speed and mile sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2929654Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106618382A (en) * | 2015-11-04 | 2017-05-10 | 邓培海 | Movement mechanism of intelligent floor cleaning dust collector |
| WO2021258496A1 (en) * | 2020-06-22 | 2021-12-30 | 东莞市力辉马达有限公司 | Improved hall sensor mounting structure |
-
2006
- 2006-01-25 CN CN 200620095176 patent/CN2929654Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106618382A (en) * | 2015-11-04 | 2017-05-10 | 邓培海 | Movement mechanism of intelligent floor cleaning dust collector |
| CN106618382B (en) * | 2015-11-04 | 2019-09-10 | 深圳市蓝达镭得科技有限公司 | A kind of movement mechanism of intelligent floor-sweeping dust catcher |
| WO2021258496A1 (en) * | 2020-06-22 | 2021-12-30 | 东莞市力辉马达有限公司 | Improved hall sensor mounting structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070801 Termination date: 20140125 |