CN203203608U - Non-contact type throttle position sensor - Google Patents
Non-contact type throttle position sensor Download PDFInfo
- Publication number
- CN203203608U CN203203608U CN 201320256525 CN201320256525U CN203203608U CN 203203608 U CN203203608 U CN 203203608U CN 201320256525 CN201320256525 CN 201320256525 CN 201320256525 U CN201320256525 U CN 201320256525U CN 203203608 U CN203203608 U CN 203203608U
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- CN
- China
- Prior art keywords
- chip
- position sensor
- throttle position
- rotor
- installation cavity
- 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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- Combined Controls Of Internal Combustion Engines (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
A non-contact type throttle position sensor is disclosed, wherein a rotor and a circuit board are mounted in an installation cavity of a shell body in an integrated manner, a chip is mounted on the circuit board, the rotor is connected onto a rotating shaft of the throttle, the shell body is mounted on a throttle body by running screws through assembling holes of the shell body, the rotor is driven to rotate by the rotating shaft of the throttle, the chip senses a magnetic signal mounted on the rotor, and the chip converts the magnetic signal into an electric signal marking a throttle opening degree and transmits the electric signal to an engine control unit. The engine control unit can accurately control oil injection igniting operation according to the received electric signal marking a throttle opening degree. Because the chip does not contact with a permanent magnet, a contact wear problem does not occur easily, good reliability is realized, and the non-contact type throttle position sensor can be used for a long time. The non-contact type throttle position sensor is also characterized by compact structure, small size, light weight, high sensitivity, good linearity, wide linearity range, high temperature resistance in utilization processes, convenience of installation, simple maintenance operation, and convenience of maintenance. The non-contact type throttle position sensor is suitable for an electric control fuel oil injection motorcycle or automobile.
Description
Technical field
The utility model relates to sensor, especially a kind of contactless throttle position sensor for automobile or motorcycle engine control system.
Background technology
Along with the enforcement of motorcycle exhaust discharging state III standard, the electronic fuel injection technology progressively is applied.Throttle position sensor is installed in the motorcycle engine system usually.It changes the position signalling of air throttle into voltage signal and is transferred to the control unit of engine the inside, and then control unit of engine is accurately controlled the oil spout igniting according to this voltage signal.
Throttle position sensor adopts the variable resistor of flexible PCB (flexible conductive film) or thick-film resistor form usually.The film of this contact easily weares and teares, and long-term use can cause output signal inaccurate, and owing to uses noble metal to cause price higher.
Summary of the invention
For above-mentioned technical matters, the invention provides a kind of non-contact measurement, be not prone to contact wear, good reliability, output signal is accurate, and is convenient to long-term use, and cost is low, the contactless throttle position sensor that volume is little.
To achieve these goals, the technical solution used in the present invention is as follows:
A kind of contactless throttle position sensor, it is characterized in that, comprise housing, be provided with installation cavity in this housing, the rotor that rotates in this installation cavity is installed in this installation cavity, at described rotor permanent magnetic iron is installed, at described installation cavity inwall contact pin and circuit board are installed, described contact pin is electrically connected with this circuit board, and the chip for the perception magnetic signal also is installed on described circuit board, and this chip is over against the side of rotor.
Be provided with the rotary spacing piece on the sidewall of described rotor, also be provided with in the described installation cavity with described rotary spacing piece and cooperate, be used for stoping the limited post of 360 ° of rotations of described rotor.
Described housing top is equipped with and covers the open-topped lid of described installation cavity.
Side at described housing has been wholely set journal stirrup, is provided with pilot hole on this journal stirrup.
Described contact pin is that the mode by injection moulding is injected on the housing.
Described chip is Hall chip or magnetoresistance effect chip, and this magnetoresistance effect chip is based on anisotropic magnetoresistance chip, giant magnetoresistance chip or tunneling magnetoresistance chip.
Good effect of the present invention is:
Based on contactless throttle position sensor of the present utility model, employing is integrated installation rotor and the circuit board that chip is installed in the installation cavity of housing, rotor is connected in the rotating shaft of air throttle, and the pilot hole that passes on the housing with screw more just can be installed to it on the throttle body.The rotating shaft rotor driven of air throttle rotates, the chip perception is installed in the magnetic signal of epitrochanterian magnet, and magnetic signal changed into the electric signal transmission of marking solar terms door aperture to control unit of engine, control unit of engine is accurately controlled the oil spout igniting according to the electric signal of the throttle opening that receives.Because the chip of perception throttle opening signal does not contact with permanent magnetic iron, is not prone to contact wear, good reliability is convenient to long-term use.And this contactless throttle position sensor also has compact conformation, and volume is little, and is lightweight, highly sensitive, good linearity, the range of linearity is wide, uses heatproof high, easy for installation, safeguard simply to make things convenient for the characteristics of maintenance, be applicable to motorcycle or the automobile of electronic fuel injection.
Because the effect of the rotary spacing piece on the housing, rotor can not be done 360 degree rotations in housing, be convenient to the normal position signalling that detects the output air throttle, erroneous judgement can not occur.
The lid that housing top arranges can prevent that extraneous dust, greasy dirt from entering, antipollution and rugged surroundings.
Description of drawings
Fig. 1 is composition decomposing schematic representation of the present utility model;
Fig. 2 is the structural representation of housing;
Fig. 3 is structural representation of the present utility model;
Fig. 4 is the utility model circuit block diagram.
Embodiment
Below in conjunction with specific embodiment the present invention is described in further detail.
As shown in Figures 1 to 4, a kind of contactless throttle position sensor comprises housing 7, is provided with the installation cavity that connects housing 7 in this housing 7, and the bottom of this installation cavity arranges O-ring seal 8.The rotor 3 that rotates in this installation cavity is installed in this installation cavity, at rotor 3 permanent magnetic iron 2 is installed, at the installation cavity inwall contact pin 6 and circuit board 5 are installed, the chip 4 for the perception magnetic signal is installed on the described circuit board 5, this chip 4 is over against the side of rotor 3.One end of contact pin 6 is electrically connected with this circuit board 5, and the other end of this contact pin 6 consists of signal outlet terminal and supply terminals.
This contactless throttle position sensor, employing is integrated installation rotor 3 and the circuit board 5 that chip is installed in the installation cavity of housing 7, rotor is connected in the rotating shaft of air throttle, and the pilot hole that passes on the housing 7 with screw more just can be installed to it on the throttle body.The rotating shaft rotor driven 3 of air throttle rotates, chip 4 perception are installed in the magnetic signal of epitrochanterian magnet, and magnetic signal changed into the electric signal transmission of marking solar terms door aperture to control unit of engine, control unit of engine is accurately controlled the oil spout igniting according to the electric signal of the throttle opening that receives.Because the chip 4 of perception throttle opening signal does not contact with permanent magnetic iron 2, is not prone to contact wear, good reliability is convenient to long-term use.And this contactless throttle position sensor also has compact conformation, and volume is little, and is lightweight, highly sensitive, good linearity, the range of linearity is wide, uses heatproof high, easy for installation, safeguard simply to make things convenient for the characteristics of maintenance, be applicable to motorcycle or the automobile of electronic fuel injection.
Be provided with rotary spacing piece 9 on the sidewall of rotor 3, also be provided with in the installation cavity with rotary spacing piece 9 and cooperate, be used for stoping the limited post 10 of 360 ° of rotations of described rotor.Because the rotary spacing piece 9 on the housing and limited post 10 actings in conjunction in the installation cavity, rotor can not be done 360 degree rotations in housing, be convenient to the normal position signalling that detects the output air throttle, erroneous judgement can not occur.
Side at housing 7 has been wholely set journal stirrup, is provided with pilot hole on this journal stirrup, is convenient to housing is installed on the throttle body.
Chip 4 is Hall chip or magnetoresistance effect chip, and this magnetoresistance effect chip is based on anisotropic magnetoresistance chip, giant magnetoresistance chip or tunneling magnetoresistance chip.Hall chip or magnetoresistance effect chip perception magnetic signal, and convert magnetic signal to electric signal transmission to filtering circuit, filtering circuit outputs to control unit of engine after processing the electric signal that receives.
Owing to having adopted Hall effect or magnetoresistance effect chip, improve sensitivity and permanance, and can realize the change curve of output by online programming, improved the signal output accuracy, reduced alignment error.
The above embodiment of the present invention only is to be explanation example of the present invention, and is not to be restriction to embodiments of the present invention.For those of ordinary skill in the field, can also make on the basis of the above description other multi-form variation and changes.Here can't give all embodiments exhaustive.Everyly belong to the row that apparent variation that technical scheme of the present invention amplifies out or change still are in protection scope of the present invention.
Claims (6)
1. contactless throttle position sensor, it is characterized in that, comprise housing (7), this housing is provided with installation cavity in (7), the rotor (3) that rotates in this installation cavity is installed in this installation cavity, at described rotor (3) permanent magnetic iron (2) is installed, at described installation cavity inwall contact pin (6) and circuit board (5) are installed, described contact pin (6) is electrically connected with this circuit board (5), chip (4) for the perception magnetic signal also is installed on described circuit board (5), and this chip (4) is over against the side of described rotor (3).
2. contactless throttle position sensor according to claim 1, it is characterized in that, be provided with rotary spacing piece (9) on the sidewall of described rotor (3), also be provided with in the described installation cavity with described rotary spacing piece (9) and cooperate, be used for stoping the limited post (10) of (3) 360 ° of rotations of described rotor.
3. contactless throttle position sensor according to claim 1 is characterized in that, described housing (7) top is equipped with and covers the open-topped lid of described installation cavity (1).
4. contactless throttle position sensor according to claim 2 is characterized in that, has been wholely set journal stirrup in a side of described housing (7), is provided with pilot hole (11) on this journal stirrup.
5. contactless throttle position sensor according to claim 1 is characterized in that, described contact pin (6) is that the mode by injection moulding is injected on the housing (7).
6. contactless throttle position sensor according to claim 1, it is characterized in that, described chip (4) is Hall chip or magnetoresistance effect chip, and this magnetoresistance effect chip is based on anisotropic magnetoresistance chip, giant magnetoresistance chip or tunneling magnetoresistance chip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320256525 CN203203608U (en) | 2013-05-13 | 2013-05-13 | Non-contact type throttle position sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320256525 CN203203608U (en) | 2013-05-13 | 2013-05-13 | Non-contact type throttle position sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203203608U true CN203203608U (en) | 2013-09-18 |
Family
ID=49147708
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320256525 Expired - Lifetime CN203203608U (en) | 2013-05-13 | 2013-05-13 | Non-contact type throttle position sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203203608U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455173A (en) * | 2019-09-11 | 2019-11-15 | 福建京科科技有限公司 | Miniature throttle position sensor and installation method |
-
2013
- 2013-05-13 CN CN 201320256525 patent/CN203203608U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110455173A (en) * | 2019-09-11 | 2019-11-15 | 福建京科科技有限公司 | Miniature throttle position sensor and installation method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: Northern New Chongqing 401122 ring Yunzao Road No. 3 Patentee after: UNITED AUTOMOTIVE ELECTRONIC SYSTEMS (CHONGQING) CO.,LTD. Address before: 401122 Chongqing City, Yubei District economic development zone was opened Yunzao Road No. 3 Patentee before: CHONGQING CHANGAN VISTEON ENGINE CONTROL SYSTEMS Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130918 |