CN2078445U - Miniature hall sensor for measuring vehicle-speed - Google Patents
Miniature hall sensor for measuring vehicle-speed Download PDFInfo
- Publication number
- CN2078445U CN2078445U CN 90208028 CN90208028U CN2078445U CN 2078445 U CN2078445 U CN 2078445U CN 90208028 CN90208028 CN 90208028 CN 90208028 U CN90208028 U CN 90208028U CN 2078445 U CN2078445 U CN 2078445U
- Authority
- CN
- China
- Prior art keywords
- hall
- measuring vehicle
- rotating disk
- speed
- transmission shaft
- 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.)
- Withdrawn
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Abstract
The utility model discloses a miniature Hall sensor for measuring vehicle-speed, comprising a drive axle. A rotating axle is provided with a bearing and a rotating disk; a permanent magnets is inserted in the surroundings of the rotating disk, or permanent magnets are uniformly inserted in the soundings of the rotating disk; the outside of the rotating axle is provided with a casing; the outer ring of the bearing is fixed on the casing; the rear end face of the casing is provided with an end cover; the end cover is provided with a Hall device. The utility model has the advantages of simple and reasonable structure, small size, low cost, convenient installation, stable and reliable performance, etc.
Description
The utility model belongs to mini Hall measuring vehicle speed sensor.
The velocity survey of existing automobile generally passes to autometasomatism by mechanical flexible axle with the rotation of automobile kilometer follower gear and realizes.Though this mechanical speed-measuring method is widely adopted, the robotization control of automobile is made troubles.Therefore people are seeking the instrument that tests the speed of electronic type, and the key of this kind instrument is a tachogenerator.
The purpose of this utility model provides a kind of mini Hall measuring vehicle speed sensor.
Elaborate below in conjunction with accompanying drawing.
Accompanying drawing is a mini Hall measuring vehicle speed sensor synoptic diagram.
The travel speed of measured automobiles is in fact as long as survey the rotating speed of automobile kilometer driven gear. The key that realizes this measurement is the number of turns that record rotates. The utility model is to utilize the relative position of permanent magnet and hall device to change the rotating speed that the generation electric pulse records the automobile kilometer driven gear.
Miniature Hall sensor for measuring vehicle-speed, its feature is: the plush copper of power transmission shaft 1 and the interlocking of automobile kilometer driven gear turning cylinder groove, power transmission shaft be equipped with the bearing 2 that play supporting role and with the friction tight rotating disk 3 of power transmission shaft, rotating disk rotates with power transmission shaft. Be embedded with one or uniformly be embedded with several block permanent magnets 4 around the rotating disk, the number of permanent magnet can decide as required, and it is individual to be generally 1-8, and permanent magnet is neodymium boron permanent magnet. Be provided with shell 6 in the power transmission shaft outside, bearing outer ring is fixed on the shell, and the shell profile is the stairstepping Cylinder, and the end outside little at shell has the garden arc groove, in order to be connected the location with automobile kilometer driven gear shell. By end cap 7 is housed, be provided with hall device 5 at end cap at the shell rear end face, hall device is the hall switch type device, and the spacing of hall device and permanent magnet opposite face is 0.5～6mm, and three lead-in wires of hall device are drawn from the end cap aperture, and aperture is dead with rubber seal. Three lead-in wires 8,9,10 meet respectively VCC(positive supply), ground wire and output are joined with secondary meter.
Advantages such as it is simple to the utlity model has Design of Mechanical Structure, reasonable, and volume is little, and cost is low, and is easy for installation, stable and reliable for performance.
Claims (3)
1, a kind of mini Hall measuring vehicle speed sensor, it is characterized in that it has transmission shaft [1], bearing [2], rotating disk [3] are housed on transmission shaft, around rotating disk, be embedded with one or the uniform several block permanent magnets [4] that are embedded with, be provided with shell [6] in the transmission shaft outside, bearing outer ring is fixed on the shell, by end cap [7] is housed, is provided with hall device [5] at the shell rear end face on end cap.
2, a kind of mini Hall measuring vehicle speed sensor according to claim 1 is characterized in that said permanent magnet is a Nd-Fe-B permanent magnet, and said hall device is a Hall switch type device.
3, a kind of mini Hall automotive test sensor according to claim 1 and 2 is characterized in that the spacing on said permanent magnet and hall device paulownia opposite is 0.5～6mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90208028 CN2078445U (en) | 1990-05-29 | 1990-05-29 | Miniature hall sensor for measuring vehicle-speed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90208028 CN2078445U (en) | 1990-05-29 | 1990-05-29 | Miniature hall sensor for measuring vehicle-speed |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2078445U true CN2078445U (en) | 1991-06-05 |
Family
ID=4888360
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90208028 Withdrawn CN2078445U (en) | 1990-05-29 | 1990-05-29 | Miniature hall sensor for measuring vehicle-speed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2078445U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383689A (en) * | 2011-09-29 | 2012-03-21 | 鲁文杰 | Synchronous control system of motor-driven window opener |
| CN103208884A (en) * | 2013-03-07 | 2013-07-17 | 苏州朗高电机有限公司 | Feedback element installed on motor rotary shaft |
| CN105759070A (en) * | 2016-03-01 | 2016-07-13 | 侯如升 | Assembly type rotating shaft speed detector |
| CN107976556A (en) * | 2017-11-27 | 2018-05-01 | 日照职业技术学院 | A kind of micro-mechanical magnetic field sensor |
-
1990
- 1990-05-29 CN CN 90208028 patent/CN2078445U/en not_active Withdrawn
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102383689A (en) * | 2011-09-29 | 2012-03-21 | 鲁文杰 | Synchronous control system of motor-driven window opener |
| CN103208884A (en) * | 2013-03-07 | 2013-07-17 | 苏州朗高电机有限公司 | Feedback element installed on motor rotary shaft |
| CN105759070A (en) * | 2016-03-01 | 2016-07-13 | 侯如升 | Assembly type rotating shaft speed detector |
| CN107976556A (en) * | 2017-11-27 | 2018-05-01 | 日照职业技术学院 | A kind of micro-mechanical magnetic field sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| 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 |