CN202992153U - High-precision non-contact type automobile gear sensor - Google Patents
High-precision non-contact type automobile gear sensor Download PDFInfo
- Publication number
- CN202992153U CN202992153U CN 201220631731 CN201220631731U CN202992153U CN 202992153 U CN202992153 U CN 202992153U CN 201220631731 CN201220631731 CN 201220631731 CN 201220631731 U CN201220631731 U CN 201220631731U CN 202992153 U CN202992153 U CN 202992153U
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- Prior art keywords
- cover plate
- gear sensor
- positioning ring
- housing
- circuit board
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Abstract
The utility model discloses a high-precision non-contact type automobile gear sensor. The high-precision non-contact type automobile gear sensor comprises a cylindrical shell body, wherein an upper cover plate is arranged at the axial top part of the shell body; a lower cover plate is arranged at the axial bottom; a shielding layer and a circuit board are arranged at the inner side of the upper cover plate; a Hall chip is welded on the circuit board; the center of the Hall chip corresponds to the center of a magnet; the magnet is embedded at the middle part of a hollow rotating shaft; a positioning ring is radially arranged at the outer side of the hollow rotating shaft; the hollow rotating shaft at the lower part of the positioning ring is provided with a rest spring in a sleeved manner; and the upper end and the lower end of the reset spring are respectively located at the positioning ring and the lower cover plate. The high-precision non-contact type automobile gear sensor solves the problems of poor contact and easy invalidation caused by easy abrasion of the conventional contact type gear sensor, and higher requirements on the performances of the non-contact gear sensor suggested based on the development of an AMT (Automated Mechanical Transmission) gearbox, and achieves extremely good linear output characteristics as a multi-point programmable function is provided.
Description
Technical field
The utility model relates to a kind of vehicle gear sensor, relates in particular to a kind of highi degree of accuracy Non-contact vehicle gear sensor.
Background technique
Power type mechanical automatic gearbox (AMT) is take the manual transmission of routine as the basis, an additional cover electric controller, thus can automatically control clutch and the shift level of manual transmission, making the separation of clutch is all automatic with engaging.The AMT gearbox combines mechanical gear box transmission efficiency height and the easy to operate advantage of automatic transmission case, all is widely used on all kinds of automobiles.
The AMT gearbox is realized the mobile gear shift of shifting fork shafts of gearbox and the joint of swing gear shift and clutch by the control to the electric machine rotation angle.Gear position sensor is most important observing and controlling link in the AMT speed variator system, and whether the measurement of gear position sensor has accurately determined reliability, the Security of AMT gearbox and the smoothness of controlling.
Traditional gear position sensor adopts the potentiometer principle mostly, changes resistance value by metallic brush and resistance substrate sliding contact, thereby changes output voltage signal.Contact type gear sensor is owing to frequently sliding in the contact, parts easily produce wearing and tearing, easily come in contact the phenomenons such as deviation of bad or output resistance, cause the signal can't normal transmission, be restricted working life, and due to the vibration of automobile, contact disk may produce moment disengagement, bad connection simultaneously, thereby cause sensor failure, damage, and the output linearity degree is difficult to also control.
The model utility content
The purpose of this utility model is in order to make up the deficiency of prior art, a kind of highi degree of accuracy Non-contact vehicle gear sensor is provided, has solved the development of the bad connection that causes easy to wear of existing contact type gear sensor existence, the problem that easily lost efficacy and AMT gearbox to the requirements at the higher level of non-contact gear position sensor performance proposition.
The utility model is achieved through the following technical solutions:
a kind of highi degree of accuracy Non-contact vehicle gear sensor, include the housing of cylindrical tube shape, it is characterized in that: the axial top of described housing is provided with upper cover plate, axially the bottom is provided with lower cover plate, described upper cover plate inboard is provided with screen layer and circuit board, paste on circuit board and welding Hall chip, the Hall chip center is corresponding with magnetic blow out centre, described magnet is embedded in the intermediate portion of hollow rotating shaft, the hollow rotating shaft outer radial is provided with positioning ring, be arranged with Returnning spring on hollow the turning of positioning ring bottom, the top and bottom of Returnning spring lay respectively on positioning ring and lower cover plate.
Described positioning ring lower surface is provided with the upper annular groove in location, and the inner side surface of described lower cover plate is provided with lower annular groove, and the lower end of the upper end of Returnning spring is positioned at the upper annular groove in location and lower annular groove.
Described housing upper end portion one side is provided with an electric interfaces that is connected with the outside, and the both sides of housing underpart are connecting respectively mounting lug, and mounting lug is provided with mounting hole.
Described Hall chip, circuit board and screen layer are packed into after the housing epicoele, fill up the epicoele of housing with the silicon gel.
Its principle is: by the magnetic induction cordless, Hall chip and magnet relative angle change, corresponding the changing of magnetic intensity meeting of responding on Hall chip, thereby process by the signal that hall sensing and chip internal carry out and reach the purpose that changes sensor output voltage, be in contactless state between Hall chip and magnet, the screen layer on circuit board top shields isolation to external magnetic field effectively, guarantees by the magnitude of field intensity of Hall chip and the stability of field signal; This sensor adopts the magnetic circuit part of Hall chip, circular magnet, composition to have good linear changing relation simultaneously, thereby has guaranteed that output voltage has the fabulous linearity.
Hall chip, circuit board and screen layer are packed into after the housing epicoele, fill up the epicoele of housing with the silicon gel, avoided causing output signal the defective of deviation to occur because Vehicular vibration causes Hall chip vibration, adopted simultaneously the encapsulation of silicon gel can avoid because the effect of expanding with heat and contract with cold that temperature variation causes causes the damage that is squeezed of Hall chip and circuit board.
The utility model has the advantages that:
1, this sensor has solved the problems such as contact wear, the life-span is low, rate of fault is high, has greatly extended operating life.
2, this sensor of this sensor has the multiple spot programmable functions and makes it to have fabulous linear output character.
3, the utilization of sensor upper shielding layer makes sensor have the ability that disturb stronger anti-external magnetic field, and output signal is precise and stable.
4, adopt the online programming technology, use home-built equipment, in high volume production process, the sensor after the production scene is complete to each assembling carries out Measurement and analysis independently programmes, and guarantees that the output parameter trend of all the sensors is consistent; Simultaneously can change flexibly output voltage parameter according to client's requirement.
5, adopt the ultrasonic welding connection technology, the product sensor after assembling is carried out seamless welding, make sensor have higher sealing and resistance to shock.
6, this sensor has automatic temperature compensation function, and when the magnetic intensity of magnet was drifted about along with the variation of temperature, chip can be automatically compensates and proofreaies and correct the drift in magnetic field; The market application foreground of this model utility is very wide, can substitute traditional touch sensor on a large scale, especially in the application of automotive electronics, this product can change short, the shortcoming such as rate of fault is high of traditional touch sensor life-span, will increase substantially reliability and the Security of system.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the assembling explosive view of Fig. 1.
Embodiment
referring to accompanying drawing, a kind of highi degree of accuracy Non-contact vehicle gear sensor, include the housing 5 of cylindrical tube shape, the axial top of housing 5 is provided with upper cover plate 1, axially the bottom is provided with lower cover plate 9, upper cover plate 1 inboard is provided with screen layer 2 and circuit board 3, paste on circuit board 3 and welding Hall chip 4, Hall chip 4 centers are corresponding with magnet 6 centers, magnet 6 is embedded in the intermediate portion of hollow rotating shaft 7, hollow rotating shaft 7 outer radial are provided with positioning ring, be arranged with Returnning spring 8 on hollow the turning of positioning ring bottom, the top and bottom of Returnning spring 8 lay respectively on positioning ring and lower cover plate 9, the positioning ring lower surface is provided with the upper annular groove in location, and the inner side surface of lower cover plate 9 is provided with lower annular groove, and the lower end of the upper end of Returnning spring 8 is positioned at the upper annular groove in location and lower annular groove, housing 5 upper end portion one sides are provided with an electric interfaces that is connected with the outside, and the both sides of housing underpart are connecting respectively mounting lug, and mounting lug is provided with mounting hole, Hall chip 4, circuit board 3 and screen layer 2 are packed into after housing 5 epicoeles, fill up the epicoele of housing 5 with the silicon gel.
Claims (4)
1. highi degree of accuracy Non-contact vehicle gear sensor, include the housing of cylindrical tube shape, it is characterized in that: the axial top of described housing is provided with upper cover plate, axially the bottom is provided with lower cover plate, described upper cover plate inboard is provided with screen layer and circuit board, paste on circuit board and welding Hall chip, the Hall chip center is corresponding with magnetic blow out centre, described magnet is embedded in the intermediate portion of hollow rotating shaft, the hollow rotating shaft outer radial is provided with positioning ring, be arranged with Returnning spring on hollow the turning of positioning ring bottom, the top and bottom of Returnning spring lay respectively on positioning ring and lower cover plate.
2. highi degree of accuracy Non-contact vehicle gear sensor according to claim 1, it is characterized in that: described positioning ring lower surface is provided with the upper annular groove in location, the inner side surface of described lower cover plate is provided with lower annular groove, and the lower end of the upper end of Returnning spring is positioned at the upper annular groove in location and lower annular groove.
3. highi degree of accuracy Non-contact vehicle gear sensor according to claim 1, it is characterized in that: described housing upper end portion one side is provided with an electric interfaces that is connected with the outside, the both sides of housing underpart are connecting respectively mounting lug, and mounting lug is provided with mounting hole.
4. highi degree of accuracy Non-contact vehicle gear sensor according to claim 1 is characterized in that: described Hall chip, circuit board and screen layer are packed into after the housing epicoele, fill up the epicoele of housing with the silicon gel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220631731 CN202992153U (en) | 2012-11-26 | 2012-11-26 | High-precision non-contact type automobile gear sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220631731 CN202992153U (en) | 2012-11-26 | 2012-11-26 | High-precision non-contact type automobile gear sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202992153U true CN202992153U (en) | 2013-06-12 |
Family
ID=48563334
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220631731 Expired - Lifetime CN202992153U (en) | 2012-11-26 | 2012-11-26 | High-precision non-contact type automobile gear sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202992153U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075514A (en) * | 2012-11-26 | 2013-05-01 | 合肥邦立电子股份有限公司 | High-precision non-contact type automobile gear sensor |
| CN106499808A (en) * | 2016-12-30 | 2017-03-15 | 重庆集诚汽车电子有限责任公司 | A kind of PRNDS gears sensing device |
| EP2985495A3 (en) * | 2014-07-02 | 2017-03-29 | Star Engineers India Pvt. Ltd. | A safety device for indicating the disengaged and engaged position of the drive shaft and the gears in a gearbox of a two wheeled vehicle |
| CN107653771A (en) * | 2017-08-08 | 2018-02-02 | 高迪丰 | A kind of electromechanical dynamic gear shifting device of road sign |
-
2012
- 2012-11-26 CN CN 201220631731 patent/CN202992153U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103075514A (en) * | 2012-11-26 | 2013-05-01 | 合肥邦立电子股份有限公司 | High-precision non-contact type automobile gear sensor |
| EP2985495A3 (en) * | 2014-07-02 | 2017-03-29 | Star Engineers India Pvt. Ltd. | A safety device for indicating the disengaged and engaged position of the drive shaft and the gears in a gearbox of a two wheeled vehicle |
| CN106499808A (en) * | 2016-12-30 | 2017-03-15 | 重庆集诚汽车电子有限责任公司 | A kind of PRNDS gears sensing device |
| CN107653771A (en) * | 2017-08-08 | 2018-02-02 | 高迪丰 | A kind of electromechanical dynamic gear shifting device of road sign |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130612 |
|
| CX01 | Expiry of patent term |