CN201532205U - Rotating shaft type Hall position sensor - Google Patents
Rotating shaft type Hall position sensor Download PDFInfo
- Publication number
- CN201532205U CN201532205U CN2009202362270U CN200920236227U CN201532205U CN 201532205 U CN201532205 U CN 201532205U CN 2009202362270 U CN2009202362270 U CN 2009202362270U CN 200920236227 U CN200920236227 U CN 200920236227U CN 201532205 U CN201532205 U CN 201532205U
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- CN
- China
- Prior art keywords
- rotating shaft
- housing
- magnet steel
- magnetic conductor
- cut flat
- 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 relates to a rotating shaft type Hall position sensor, characterized in that: the position sensor includes a housing (1), a rotating shaft member (12) is mounted in the housing (1), a magnetic conductor (13) is incorporated in the rotating shaft member (12), a first magnet steel (14) and a second magnet (15) in mutual parallel are mounted on the hole wall of the inner hole of the magnetic conductor (13), the polarity of the first magnet steel (14) is opposite to the polarity of the second magnet steel (15), a Hall element (5) with fixed relative position to the housing (1) is mounted in the central of the inner bore of the magnetic conductor (13). The utility model is a non-contact throttle sensor designed by using the characteristic that the output voltage of the Hall element changed along with the magnetic variation, to improve operational reliability of the sensor.
Description
(1) technical field
The utility model relates to a kind of throttle position switch.Be mainly used on the VE proportioning pump of automobile electrically-controlled fuel system.Belong to the detecting element technical field.
(2) background technology
The electronic controlled fuel system need in time adjust the fuel delivery and the fuel supply advance angle of control fuel system according to the load variations of automobile, so that keep good and economic and optimum discharge performance.The VE proportioning pump was installed a kind of throttle position switch of contact at the throttle control handle place in the past, it is actually a variable resistor, when VE proportioning pump throttle rotates, a flexible member contact is arranged along the printed resistor surface rotation that is fixed in the housing on the pivot arm, resistance between contact and the output line is changed with the throttle corner, and output signal also changes thereupon.Electronic controller ECU on the oil pump is with the size control oil pump feed amount and the fuel supply advance angle of output signal.
Because the vibration that engine operation causes during running car is bigger; usually can influence the pressure between contact point and the sheet resistance, contact point can leave resistor disc sometimes, thereby makes the output signal instability; influence engine performance, may cause some accidents when serious.
(3) summary of the invention
The purpose of this utility model is to overcome above-mentioned deficiency, provides a kind of dependability high rotating shaft type Hall accelerator position sensor.
The purpose of this utility model is achieved in that a kind of rotating shaft type Hall accelerator position sensor, comprise housing, rotating axis component is installed in the housing, magnetic conductor is housed in the rotating axis component, magnetic conductor endoporus hole wall is equipped with two first magnet steel that are parallel to each other and second magnet steel, first magnet steel is opposite with the second magnet steel polarity, is equipped with and the fixing Hall element of housing relative position in the endoporus center of magnetic conductor.When rotating axis component rotates, magnet steel on the magnetic conductor rotates around Hall element, the electric current that produces in the Hall element changes with the size of shaft rotary corner, and output voltage is with the linear variation of corner, and oil pump ECU detects oil pump feed amount and fuel supply advance angle according to the variation of electric current.
The utility model rotating shaft type Hall accelerator position sensor, described rotating axis component is by rotating shaft shell working of plastics and rotating shaft casting one, magnetic conductor is contained in the rotating shaft shell, magnetic conductor is a metallic sintered products, be circular, the magnetic conductor cylindrical has two to cut flat horizontal surface and be fixed in the rotating shaft shell, and magnetic conductor endoporus two ends are circular-arc, in the middle of the endoporus is two aspectant first planes parallel to each other and second plane, and first magnet steel and second magnet steel are attached to respectively on first plane and second plane.
The utility model rotating shaft type Hall accelerator position sensor is cast with first spacing preiection on the rotating shaft shell of rotating axis component, corresponding to this first spacing preiection, the corresponding position also is provided with second spacing preiection that cooperates with it in the housing.Place restrictions on the hard-over of rotating axis component.
The ultimate principle of working sensor is as follows, Hall element is fixed in the middle of the housing, have an annulus magnetic conductor in the rotating axis component of design, be placed with two book magnet steel of parallel installation in the magnetic conductor, magnet steel is face-to-face, magnetic polarity is opposite, draw into high-intensity magnetic field between the magnet steel, Hall element is installed in magnetic field center, when the rotating shaft band magnet steel and magnetic conductor when Hall element rotates, by the high-intensity magnetic field of Hall element, change with corner, thereby the electric current of generation and corner respective change, by amplifying the voltage signal of output respective change, ECU changes big or small fuel delivery and the fuel supply advance angle of controlling VE distribution oil pump according to these signals.
The beneficial effects of the utility model are:
The utility model is to utilize the Hall element characteristics design that output voltage changes thereupon when changes of magnetic field to become contactless throttle sensor, has improved the dependability of sensor.
(4) description of drawings
Fig. 1 is the structural representation of the utility model rotating shaft type Hall accelerator position sensor.
Fig. 2 is the A-A cut-away view of Fig. 1.
Fig. 3 is pivot structure figure of the present utility model.
Fig. 4 is the B-B cut-away view of Fig. 3.
Fig. 5 is magnetic conductor figure of the present utility model.
Fig. 6 is housing of the present utility model (having inserts) figure.
Fig. 7 is the C-C cut-away view of Fig. 6.
Reference numeral among the figure:
Housing 1, inserts 2, location-plate 3, wiring board 4, Hall element 5, wiring 6, filler 7, locating piece 8, spring pad 9, O-ring seal 10, elastomeric pad 11, rotating axis component 12, magnetic conductor 13, first magnet steel 14, second magnet steel 15;
The second spacing preiection 1-1, axle sleeve 1-2, the 3rd cut flat position 1-3, the 4th and cut flat position 1-4;
First cuts flat position 3-1, second cuts flat position 3-2;
Rotating shaft shell 12-1, rotating shaft 12-2, the first spacing preiection 12-3;
The first plane 13-1, the second plane 13-2.
(5) embodiment
Referring to Fig. 1 and Fig. 2, Fig. 1 is the structural representation of the utility model rotating shaft type Hall accelerator position sensor.Fig. 2 is the A-A cut-away view of Fig. 1.By Fig. 1 and Fig. 2 as can be seen, the utility model rotating shaft type Hall accelerator position sensor, comprise housing 1, rotating axis component 12 is installed in the housing 1, magnetic conductor 13 is housed in the rotating axis component 12, magnetic conductor 13 shapes are seen shown in Figure 5, magnetic conductor 13 is a metallic sintered products, is circular, and cylindrical has two to cut flat horizontal surface and be fixed among the rotating shaft shell 12-1, the endoporus two ends are circular-arc, are two the first plane 13-1 parallel to each other and the second plane 13-2 in the middle of the endoporus.It is opposite with second magnet steel, 15 polarity with second magnet steel, 15, the first magnet steel 14 to post first magnet steel 14 on the first plane 13-1 and the second plane 13-2 respectively.First magnet steel 14 and second magnet steel 15 constitute magnetic loop with magnetic conductor 13.Hall element 5 is installed in endoporus center at magnetic conductor 13, Hall element 5 is fixed in the location-plate 3, location-plate 3 outer rims are provided with first and cut flat position 3-1 and second and cut flat position 3-2, first cut flat position 3-1 and second and cut flat position 3-2 corresponding to this, housing 1 corresponding position also is provided with the corresponding the 3rd and cuts flat position 1-3 and the 4th and cut flat position 1-4, location-plate 3 is cut flat position 3-1 and second by first and is cut flat position 3-2 and be stuck in the 3rd of housing and cut flat position 1-3 and the 4th and cut among the flat position 1-4 (referring to Fig. 6 and Fig. 7), and the relative position of Hall element 5 and housing 1 immobilizes like this.The wiring of Hall element 5 picks out by P.e.c. on the terminal block 4 and lead 6, and with locating piece 8 that lead 6 is directed fixing, and location-plate 3, wiring board 4 and lead 6 usefulness fillers 7 are fixed in the housing 1.
Rotating axis component 12 is that rotating shaft shell 12-1 working of plastics casts in rotating shaft 12-2, can not become flexible, in rotating shaft shell 12-1, be provided with axle sleeve 1-2, axle sleeve 1-2 is sleeved on the rotating shaft 12-2, be equipped with O-ring seal 10 between rotating shaft 12-2 and axle sleeve 1-2, rotating shaft 12-2 axle head is provided with elastomeric pad 11, and rotating shaft shell 12-1 outer rim is provided with spring pad 9.
On rotating shaft shell 12-1, be cast with the first spacing preiection 12-3, corresponding to this spacing preiection 12-3, the corresponding position also is provided with the second spacing preiection 1-1 that cooperates with it in the housing 1, the second spacing preiection 1-1 in the first spacing preiection 12-3 and the housing 1 cooperatively interacts, the hard-over of restriction rotating axis component 12 is seen Fig. 3, Fig. 4 and Fig. 6, Fig. 7.
Be cast with the inserts 2 of slotted eye in the housing 1, increased installation strength, be convenient to adjust setting angle simultaneously.
When rotating axis component 12 rotates, first magnet steel 14 on the magnetic conductor 13 and second magnet steel 15 are around Hall element 5 rotations, enter the magnetic line of force of another magnet steel also around Hall element 5 rotations from a magnet steel, magnetic field by Hall element 5 is along with the anglec of rotation changes, thereby the electric current that produces in the Hall element 5 is also changed with corner, and the voltage of output also changes with corner.Because first magnet steel 14 does not contact with Hall element 5 with second magnet steel 15, the harmful effect that can avoid engine luggine to produce improves the precision and the reliability of throttle sensor work.Spring pad 9 and elastomeric pad 11 can be eliminated rotating axis component 12 and housing 1 end play, and O-ring seal 10 can avoid extraneous greasy dirt dust iron powder to go into influences Hall element work in the housing 1.
Claims (6)
1. rotating shaft type Hall accelerator position sensor, it is characterized in that: described position transducer comprises housing (1), rotating axis component (12) is installed in the housing (1), magnetic conductor (13) is housed in the rotating axis component (12), magnetic conductor (13) endoporus hole wall is equipped with two first magnet steel (14) that are parallel to each other and second magnet steel (15), first magnet steel (14) is opposite with second magnet steel (15) polarity, is equipped with and the fixing Hall element (5) of housing (1) relative position in the endoporus center of magnetic conductor (13).
2. a kind of rotating shaft type Hall accelerator position sensor according to claim 1, it is characterized in that: described rotating axis component (12) is by rotating shaft shell (12-1) working of plastics and rotating shaft (12-2) casting one, magnetic conductor (13) is contained in the rotating shaft shell (12-1), magnetic conductor (13) is a metallic sintered products, be circular, magnetic conductor (13) cylindrical has two to cut flat horizontal surface and be fixed in the rotating shaft shell (12-1), magnetic conductor (13) endoporus two ends are circular-arc, in the middle of the endoporus is two aspectant first planes (13-1) parallel to each other and second plane (13-2), and first magnet steel (14) and second magnet steel (15) are attached to respectively on first plane (13-1) and second plane (13-2).
3. a kind of rotating shaft type Hall accelerator position sensor according to claim 2, it is characterized in that: on the rotating shaft shell (12-1) of rotating axis component (12), be cast with first spacing preiection (12-3), corresponding to this first spacing preiection (12-3), the corresponding position also is provided with second spacing preiection (1-1) that cooperates with it in the housing (1).
4. a kind of rotating shaft type Hall accelerator position sensor according to claim 2, it is characterized in that: in rotating shaft shell (12-1), be provided with axle sleeve (1-2), axle sleeve (1-2) is sleeved in the rotating shaft (12-2), be equipped with O-ring seal (10) between rotating shaft (12-2) and axle sleeve (1-2), rotating shaft (12-2) axle head is provided with elastomeric pad (11), and rotating shaft shell (12-1) outer rim is provided with spring pad (9).
5. according to claim 1,2,3 or 4 described a kind of rotating shaft type Hall accelerator position sensors, it is characterized in that: described Hall element (5) is fixed in the location-plate (3), location-plate (3) outer rim is provided with first and cuts flat position (3-1) and second and cut flat (3-2), first cut flat position (3-1) and second and cut flat (3-2) corresponding to this, housing (1) corresponding position also is provided with the corresponding with it the 3rd and cuts flat position (1-3) and the 4th and cut flat (1-4), location-plate (3) is cut flat position (3-1) and second by first and is cut flat position (3-2) and be stuck in the 3rd of housing and cut flat position (1-3) and the 4th and cut in flat (1-4), the wiring of Hall element (5) picks out by P.e.c. on the terminal block (4) and lead (6), and with a positioning block (8) that lead (6) is directed fixing, described location-plate (3), wiring board (4) and lead (6) are fixed in the housing (1) with filler (7).
6. according to claim 1,2,3 or 4 described a kind of rotating shaft type Hall accelerator position sensors, it is characterized in that: the inserts (2) that is cast with slotted eye in the described housing (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202362270U CN201532205U (en) | 2009-09-23 | 2009-09-23 | Rotating shaft type Hall position sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202362270U CN201532205U (en) | 2009-09-23 | 2009-09-23 | Rotating shaft type Hall position sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201532205U true CN201532205U (en) | 2010-07-21 |
Family
ID=42527608
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202362270U Expired - Fee Related CN201532205U (en) | 2009-09-23 | 2009-09-23 | Rotating shaft type Hall position sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201532205U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438909A (en) * | 2013-09-09 | 2013-12-11 | 无锡晶晟汽车电子有限公司 | Engine position sensor |
-
2009
- 2009-09-23 CN CN2009202362270U patent/CN201532205U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103438909A (en) * | 2013-09-09 | 2013-12-11 | 无锡晶晟汽车电子有限公司 | Engine position sensor |
| CN103438909B (en) * | 2013-09-09 | 2015-10-07 | 无锡晶晟汽车电子有限公司 | Engine position sensor |
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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: 20100721 Termination date: 20160923 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |