CN2212202Y - Sensor of vehicle speed - Google Patents
Sensor of vehicle speed Download PDFInfo
- Publication number
- CN2212202Y CN2212202Y CN 94223236 CN94223236U CN2212202Y CN 2212202 Y CN2212202 Y CN 2212202Y CN 94223236 CN94223236 CN 94223236 CN 94223236 U CN94223236 U CN 94223236U CN 2212202 Y CN2212202 Y CN 2212202Y
- Authority
- CN
- China
- Prior art keywords
- vehicle speed
- utility
- model
- data
- speed 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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Abstract
The utility model discloses a vehicle speed sensor which can be arranged on various models of automobiles and reflect the running conditions of automobiles. The utility model is composed of a casing, a bearing seat, a transmission shaft, a data-acquisition disk, a permanent magnet, a Hall element, a printed circuit board, etc. When an automobile runs, the vehicle speed mileage output shaft of the gear shifting box of the automobile drives the transmission shaft and the data-acquisition disk to rotate synchronously, the permanent magnet of the data-acquisition disk makes the Hall element continuously switched on and switched off, and thus corresponding electric pulse signals are output to be provided to a data recorder for storage. The utility model has the advantages of compact project organization, reasonable structure, small size, high resolution and reliable and accurate data acquisition, the utility model is free of the influence of greasy pollution, and the utility model is suitable for various vehicle models.
Description
The utility model relates in the vehicular traffic safety management work information transfer device to the running car situation.
Vehicle speed sensor is installed between automobile gearbox and the vehicle speed mileage output shaft, and the rotating speed of automotive wheel is become corresponding electric signal, provides the recorded vehicle device to store and reach vehicle is carried out with car control, monitoring.This device can accurately, scientifically provide the various data before accident takes place, and as the circumstantial evidence of analysis accident, also is for a long time the driver to be carried out tracing management, supervises the effective measures that traffic hazard was observed rules and obey laws, reduced in its driving.In the vehicle speed sensor of prior art, as 611 is the sensor that adopts the photoelectricity coupling principle, it is subjected to greasy dirt, silt particle to fall number easily after polluting, it is inaccurate to adopt number, can't adopt number when seriously polluted, and vehicle often travels on the more abominable road of environment, just is difficult to reflect exactly actual driving states.Also some sensor causes versatility poor because of volume can't adapt to various different model automobiles too greatly.
The purpose of this utility model is to overcome the defective of prior art and provides a kind of greasy dirt, silt particle of not being subjected to pollute, adopt and count accurately and reliably and the good vehicle speed sensor of versatility.
The utility model is achieved by the following scheme: two ends are placed in the cavity that housing and bearing seat form by the number dish of adopting that the transmission shaft of bearing supporting is provided with close-fitting, Hall unit is welded on the printed circuit board and packs into sealed in the terminal box, bearing seat and terminal box are fixed with housing respectively, the described nose circle face of adopting the number dish tightens and is pressed into a plurality of uniform permanent magnets, form on-off switch with Hall unit, and make Hall unit go deep into housing to place the permanent magnet centers of adopting the number dish.
The utility model is compared with known technology, its advantage is structural design compactness, reasonable, little, the profile highly versatile of volume, can be equipped with various vehicles, owing to adopted the permanent magnet adopted in the number dish and Hall unit as on-off switch, so resolution height, compare with light electricity velocity sensor, have the influence of not being afraid of oil pollution, it is accurately reliable to adopt number.
Description of drawings.
Fig. 1 is the utility model structural representation.
Fig. 2 adopts number dish structural drawing for № 6.
By above-mentioned accompanying drawing embodiment the utility model is described in detail again.
The number of adopting that the transmission shaft (2) that the two ends of vehicle speed sensor (seeing Fig. 1-2) are supported by oiliness bearing (12) is provided with the close-fitting connection coils (6), this is adopted to count and coils in the chamber that is placed in housing that external diameter is φ 30 (5) and bearing seat (4) composition, Hall unit (9) be welded on that printed circuit board (7) is gone up and the terminal box of packing into (8) in, with the perfusion silicone rubber seal, bearing seat (4) is fixing with sunk screw and housing (5), and terminal box (8) is fixing with screw and housing (5).Adopt uniform 28 holes on the nose circle face of counting dish (6), press permanent magnet (13) into 28 φ 1.5 * 3, it and Hall unit (9) are formed the electronic switch of break-make, and make Hall unit (9) go deep into housing (5) to place permanent magnet (13) centers of adopting number dish (6), 28 permanent magnets must be aimed in the center that is Hall unit, when promptly rotating, each permanent magnet must be by the center of Hall unit.
End plate (1) on the transmission shaft (2) is outer to be equipped with attaching nut (3), and it is to be connected with the former external thread that connects the speedometer flexible axle of automobile gearbox.
Housing (5) bottom has the external thread structure (11) that is connected with speedometer flexible shaft end nut.
When running car, wheel box vehicle speed mileage output shaft drives transmission shaft (2) rotation, adopt number dish (6) because of doing synchronous rotation with its close-fitting, owing to adopt the effect of the permanent magnet (13) on the number dish (6), Hall unit (9) is constantly switched on and off, thereby export corresponding electric impulse signal, supply with data recorder through three-core shielding cable (10) and store.
Claims (4)
1, a kind of vehicle speed sensor, two ends are placed in the cavity that housing (5) and bearing seat (4) form by the number dish (6) of adopting that the transmission shaft (2) of bearing (12) supporting is provided with close-fitting, Hall unit (9) be welded on that printed circuit board (7) is gone up and the terminal box of packing into (8) in sealed, bearing seat (4) and terminal box (8) are fixing with housing (5) respectively, it is characterized in that on the nose circle face of adopting number dish (6), being pressed into a plurality of uniform permanent magnets (13), form the break-make electronic switch with Hall unit (9), and make Hall unit (9) go deep into housing (5) to place permanent magnet (13) centers of adopting number dish (6).
2, vehicle speed sensor as claimed in claim 1 is characterized in that the described permanent magnet (13) that is evenly equipped with 28 φ 1.5 * 3 on number dish (6) nose circle face of adopting.
3, vehicle speed sensor as claimed in claim 1 is characterized in that outer being equipped with automobile gearbox is former of end plate (1) on the transmission shaft (2) meets the attaching nut (3) that speedometer flexible axle external thread is connected.
4, vehicle speed sensor as claimed in claim 1 is characterized in that described housing (5) bottom has the external thread structure (11) that is connected with speedometer flexible shaft end nut.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94223236 CN2212202Y (en) | 1994-09-27 | 1994-09-27 | Sensor of vehicle speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 94223236 CN2212202Y (en) | 1994-09-27 | 1994-09-27 | Sensor of vehicle speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2212202Y true CN2212202Y (en) | 1995-11-08 |
Family
ID=33836996
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 94223236 Expired - Fee Related CN2212202Y (en) | 1994-09-27 | 1994-09-27 | Sensor of vehicle speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2212202Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707879B (en) * | 2007-06-06 | 2013-06-05 | 海卓-艾尔公司 | Angular position sensor |
| CN104698209A (en) * | 2013-12-10 | 2015-06-10 | 上海森太克汽车电子有限公司 | Speed sensor structure |
-
1994
- 1994-09-27 CN CN 94223236 patent/CN2212202Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101707879B (en) * | 2007-06-06 | 2013-06-05 | 海卓-艾尔公司 | Angular position sensor |
| CN104698209A (en) * | 2013-12-10 | 2015-06-10 | 上海森太克汽车电子有限公司 | Speed sensor structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |