CN203349846U - Non-contact throttle valve position sensor - Google Patents
Non-contact throttle valve position sensor Download PDFInfo
- Publication number
- CN203349846U CN203349846U CN 201320316306 CN201320316306U CN203349846U CN 203349846 U CN203349846 U CN 203349846U CN 201320316306 CN201320316306 CN 201320316306 CN 201320316306 U CN201320316306 U CN 201320316306U CN 203349846 U CN203349846 U CN 203349846U
- Authority
- CN
- China
- Prior art keywords
- position sensor
- magnetic element
- rotor
- groove
- installation
- 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 - Lifetime
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Abstract
The utility model discloses a non-contact throttle valve position sensor. A Hall element, a magnetic element and a rotor are disposed inside a housing. The rotor comprises an installation part and a connection part used for tight connection of a throttle valve shaft, and a butt joint part that is disposed between the connection part and the installation part. The other end, which is opposite to an inwall of the housing, of the Hall element is disposed inside the installation part in a protruded manner. The inwall of the installation part is provided with an installation groove. The magnetic element is disposed in the installation groove. A surface, which is opposite to the installation groove, of the magnetic element is provided with a shielding ring. The periphery of the connection part is sleeved with a torsional spring. One end of the torsional spring is in butt joint with the butt joint part. The other end, which is opposite to the butt joint part, of the connection part is connected with a cover. The magnetic element is disposed in the installation groove of the inwall of the installation part, and the structure is firm. The shielding ring is disposed at the surface, which is opposite to the installation groove, of the magnetic element, so that magnetic leakage of the throttle valve position sensor in operation is effectively reduced.
Description
Technical field
The utility model relates to a kind of air throttle parts, and more particularly, it relates to a kind of throttle position sensor.
Background technology
Throttle position sensor is called again engine load sensor or throttle switch.Its main function is that to detect engine be in idling operation or load condition, is accelerating mode or decelerating mode.It is in fact a variohm and several switch, is installed on throttle body.Air throttle position sensor of automobile is the sensor of reflection throttle opening, and it has embodied for the power condition of engine, and throttle opening is larger, and engine is air-breathing more, and output power is larger; Otherwise, the air-breathing minimizing of engine, output power is less.Throttle position sensor is divided for the contact throttle position sensor be comprised of brush, slide plate resistance and the contactless throttle position sensor be comprised of linear Hall chip and permanent magnet.
The contactless throttle position sensor of linear Hall, permanent magnet is the contactless mode, produce the magnetic flux density by the angle linear change by annular or circular permanent magnet, utilize the linear Hall chip characteristic certain corresponding to the magnetic flux density voltage gain, can make the output voltage of sensor by the angle linear change.The linear Hall chip is divided into two kinds, and the one, the linear Hall chip of fixed gain; Another kind is the linear Hall chip of programmable-gain.
Current a kind of contactless throttle position sensor, it is arranged on throttle body, described sensor comprises housing, cover plate, circuit board, Hall element, magnetic element and rotor, wherein circuit board, Hall element, magnetic element and rotor are positioned at housing, described rotor closely is connected with throttle plate pin, and described magnetic element is fixedly mounted on rotor, and described circuit board is arranged on housing, and be fixedly connected with Hall element, an intersegmental gap is arranged between described Hall element and magnetic element.The lower end of described rotor closely is connected with throttle plate pin by jump ring.The contactless throttle position sensor of this kind of setting is not in use protected magnetic structure, thereby easily magnetic is revealed and caused magnetic loss, and magnetic element directly to be connected on rotor the sound construction degree not high.
The utility model content
The deficiency existed for prior art, the purpose of this utility model be to provide a kind of can reduce work the time magnetic reveal and well-set contactless throttle position sensor.
For achieving the above object, the utility model provides following technical scheme:
A kind of contactless throttle position sensor, comprise housing, cover plate, Hall element, magnetic element and with the close-connected rotor of throttle plate pin, Hall element, magnetic element and rotor are positioned at housing, described rotor include installation portion and for the close-connected connecting portion of throttle plate pin and be located at connecting portion and installation portion between contact part, the other end of the relative inner walls of Hall element is protruding to be connected in installation portion, described installation portion inwall is provided with the installation groove, described magnetic element is located at and is installed in groove, the face that described magnetic element is installed groove relatively is provided with shielding ring.
By adopting technique scheme, the installation groove is set in the installation portion of rotor, magnetic element is flush-mounted in to be installed in groove, magnetic element is not easy to come off, sound construction, the face that groove is installed relatively at magnetic element arranges shielding ring, and the magnetic while effectively having reduced work is revealed.
As further improvement in the technical proposal: described connecting portion is arranged with outward for closely connecting the torsion spring of rotor and throttle plate pin, and described torsion spring one end is connected with the contact part conflict.
By adopting technique scheme, torsion spring provides the power resetted for revolution to rotor, be swift in response.
The utility model further is set to: described installation portion external diameter and connecting portion external diameter all are less than the contact part external diameter.
By adopting technique scheme, torsion spring can be conflicted and be connected with contact part, is not easy dropping structure firm when working.
The utility model further is set to: described installation groove is three/second ring groove, and described magnetic element shape is suitable with the installation groove shapes.
By adopting technique scheme, chimeric more firmly tight when the installation groove of three/second ring and the magnetic element of three/second ring coordinate.
The utility model further is set to: the inside of relative cover plate one end of described connecting portion is convexly equipped with provides resilient clamping projection, and described connecting portion is by clamping projection and cover plate clamping.
By adopting technique scheme, connecting portion and cover plate be by the clamping of clamping projection, working condition of checking the position sensor for throttle body inner member for convenience detach.
The accompanying drawing explanation
The structural representation one that Fig. 1 is the contactless throttle position sensor embodiment of the utility model;
Fig. 2 is the contactless throttle position sensor structural representation two of the utility model;
The first structural representation that Fig. 3 is the contactless throttle position sensor rotor of the utility model;
The second structural representation that Fig. 4 is the contactless throttle position sensor rotor of the utility model.
Reference numeral:
1, housing; 2, cover plate; 3, rotor; 31, installation portion; 32, contact part; 33, connecting portion; 4, magnetic element; 5, shielding ring; 6, Hall element; 7, torsion spring.
Embodiment
Referring to figs. 1 through Fig. 4, the contactless throttle position sensor embodiment of the utility model is described further.
As shown in Figure 1 to Figure 3, the contactless throttle position sensor of the utility model, comprise housing 1, cover plate 2, Hall element 6, magnetic element 4 and for the close-connected rotor 3 of throttle plate pin, housing 1 is provided with the opening of packing into for element, be provided with the through hole passed for throttle plate pin on cover plate 2, cover plate 2 closely cooperates in opening part and the housing 1 of housing 1, Hall element 6, magnetic element 4 and rotor 3 are positioned at housing 1, Hall element 6 is arranged on housing 1 inwall, rotor 3 include installation portion 31 and for the close-connected connecting portion 33 of throttle plate pin and be located at connecting portion 33 and installation portion 31 between contact part 32, described installation portion 31 external diameters and connecting portion 33 external diameters all are less than contact part 32 external diameters,
The other end of Hall element 6 relative housing 1 inwalls is protruding to be connected in installation portion 31, described installation portion 31 inwalls are provided with the installation groove, described magnetic element 4 is located at and is installed in groove, the face that described magnetic element 4 is installed groove relatively is provided with shielding ring 5, the outer torsion spring 7 that is arranged with of described connecting portion 33, described torsion spring 7 one ends are conflicted and are connected with contact part 32, and the other end of described connecting portion 33 relative contact parts 32 is connected with cover plate 2.
By adopting technique scheme, at the interior installation groove that arranges of the installation portion 31 of rotor 3, magnetic element 4 is flush-mounted in to be installed in groove, magnetic element 4 is not easy to come off, sound construction, and torsion spring 7 one ends are conflicted and are connected with contact part 32, one end closely connects rotor and throttle plate pin, sound construction, the power that provides revolution to reset to rotor 3 when work, be swift in response; The face that groove is installed relatively at magnetic element 4 arranges shielding ring 5, thereby effectively prevents that throttle position sensor magnetic dispersion when work from reducing work efficiency.Hall element 6 can be the linear Hall chip of fixed gain, can be also the linear Hall chip of programmable-gain, and for consistance and the qualification rate that guarantees product, preferably the linear Hall chip of programmable-gain is as Hall element 6 herein.
As shown in Figure 3 and Figure 4, described installation groove is three/second ring groove, and described magnetic element 4 shapes are suitable with the installation groove shapes.Certainly in order to reduce cost, can be arranged to 1/4th annular grooves by groove is installed, at 1/4th annulars the setting-ins of magnetic element 4 and shielding ring 5 being arranged to suitable size, enter.Preferred 2/3rds annular groove herein because the magnetic element of the installation groove of three/second ring and three/second ring 4 while coordinating chimeric more firmly closely, can make the data linearity of output better simultaneously.
As shown in Figures 2 and 3, the inside of connecting portion 33 relative cover plate 2 one ends is convexly equipped with out two and has flexible clamping projection, by rotor 3 and cover plate 2 cooperation the time, has flexible clamping projection by two and presses and snap in cover plate 2 to rotor 3 axis directions.Connecting portion 33 with cover plate 2 by the clamping of clamping projection, working condition of checking the position sensor for throttle body inner member for convenience detach.
The above is only preferred implementation of the present utility model, and protection domain of the present utility model also not only is confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection domain of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not break away under the utility model principle prerequisite, these improvements and modifications also should be considered as protection domain of the present utility model.
Claims (5)
1. a contactless throttle position sensor, comprise housing, cover plate, Hall element, magnetic element and with the close-connected rotor of throttle plate pin, Hall element, magnetic element and rotor are positioned at housing, it is characterized in that: described rotor include installation portion and for the close-connected connecting portion of throttle plate pin and be located at connecting portion and installation portion between contact part, the other end of the relative inner walls of Hall element is protruding to be connected in installation portion, described installation portion inwall is provided with the installation groove, described magnetic element is located at and is installed in groove, the face that described magnetic element is installed groove relatively is provided with shielding ring.
2. contactless throttle position sensor according to claim 1 is characterized in that: described connecting portion is arranged with outward for closely connecting the torsion spring of rotor and throttle plate pin, and described torsion spring one end is connected with the contact part conflict.
3. contactless throttle position sensor according to claim 1 and 2, it is characterized in that: described installation portion external diameter and connecting portion external diameter all are less than the contact part external diameter.
4. contactless throttle position sensor according to claim 1 and 2, it is characterized in that: described installation groove is three/second ring groove, described magnetic element shape is with that groove shapes is installed is suitable.
5. contactless throttle position sensor according to claim 1 and 2, it is characterized in that: the inside of relative cover plate one end of described connecting portion is convexly equipped with provides resilient clamping projection, and described connecting portion is by clamping projection and cover plate clamping.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320316306 CN203349846U (en) | 2013-06-01 | 2013-06-01 | Non-contact throttle valve position sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320316306 CN203349846U (en) | 2013-06-01 | 2013-06-01 | Non-contact throttle valve position sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203349846U true CN203349846U (en) | 2013-12-18 |
Family
ID=49749734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320316306 Expired - Lifetime CN203349846U (en) | 2013-06-01 | 2013-06-01 | Non-contact throttle valve position sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203349846U (en) |
-
2013
- 2013-06-01 CN CN 201320316306 patent/CN203349846U/en not_active Expired - Lifetime
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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 | ||
| CX01 | Expiry of patent term |
Granted publication date: 20131218 |