CN201714494U - Hall type throttle position sensor capable of adjusting output voltage - Google Patents
Hall type throttle position sensor capable of adjusting output voltage Download PDFInfo
- Publication number
- CN201714494U CN201714494U CN2009202937475U CN200920293747U CN201714494U CN 201714494 U CN201714494 U CN 201714494U CN 2009202937475 U CN2009202937475 U CN 2009202937475U CN 200920293747 U CN200920293747 U CN 200920293747U CN 201714494 U CN201714494 U CN 201714494U
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- CN
- China
- Prior art keywords
- permanent magnet
- output voltage
- hall
- position sensor
- throttle position
- 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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- Transmission And Conversion Of Sensor Element Output (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model provides a Hall type throttle position sensor capable of adjusting output voltage, comprising a shell and a shaft sleeve arranged in the shell, wherein the shaft sleeve is used for connecting the rotating shaft of a throttle, and the shaft sleeve and the rotating shaft of the throttle are synchronously rotated. The shaft sleeve is fixedly provided with an angle sensing magnet, and a Hall element is arranged in the shell. The shell of the back of the sensing surface of the Hall element is also provided with a permanent magnet, and the permanent magnet can regulate the magnetic field of the Hall element. The permanent magnet is a cylindrical permanent magnet for radial magnetization, and the cylindrical permanent magnet can be rotatablely and axially arranged in the shell. The magnetic flux density of the magnetic field is changed from the inner part of the sensor to change the output voltage of the sensor, and the permanent magnet is added to bring an offset magnetic field. The magnetic field direction of the permanent magnet is regulated to regulate the output voltage of the sensor.
Description
Technical field
The utility model relates to a kind of throttle position sensor.
Background technique
Air throttle position sensor of automobile is the sensor of reflection throttle opening, and it has embodied and has been the power condition of motor, and throttle opening is big more, and motor is air-breathing many more, and output power is big more; Otherwise, the air-breathing minimizing of motor, output power is more little.Throttle position sensor is divided for contact-type throttle position sensor of being made up of brush, slide plate resistance and the contactless throttle position sensor of being made up of linear Hall chip and permanent magnet.
The contact-type throttle position sensor of brush, slide plate resistance exists situations such as wearing and tearing and contaminating impurity directly to have influence on the reliability and the working life of sensor owing to adopt contact-type work.
The contactless throttle position sensor of linear Hall, permanent magnet is the contactless mode, produce the Magnetic flux density of pressing the angle linear change by annular or circular permanent magnet, utilize the linear Hall chip corresponding to the certain characteristic of Magnetic flux density voltage gain, the output voltage that can make sensor is 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.Adopt programmable-gain linear Hall chip manufacturing throttle body position transducer can guarantee consistency of product and up-to-standard rate, but the Hall chip Costco Wholesale is higher, because establishment step is many, manufacturing efficiency is not high relatively simultaneously; Adopt the Hall chip of fixed gain, require permanent magnet shape, Magnetic field distribution fine, also require the gap of Hall chip and permanent magnet strictly to control simultaneously, otherwise homogeneity of product and reliability can't guarantee.Actual conditions because the discreteness of magnetic field of permanent magnet, fit up gap etc., make that the production up-to-standard rate of Hall-type throttle position sensor of fixed gain is not high, cause the rejection and waste of batch process.
If can improve the production up-to-standard rate of fixed gain throttle position sensor, can reduce the cost of contactless throttle position sensor.Change the Magnetic flux density in magnetic field from sensor internal, can change the output voltage of sensor, the output offset voltage that in Hall chip, adds the bias magnetic field adjustable sensor, reach the purpose of regulating sensor output voltage, the permanent magnet of radial magnetizing, can produce the magnetic field of positive and negative variation during rotation, make output offset voltage just change.
The model utility content
In view of this,, the utility model proposes a kind of Hall-type throttle position sensor of adjustable output voltage, to improve the production up-to-standard rate of Hall-type throttle position sensor in order to address the above problem.
The purpose of this utility model is achieved in that the Hall-type throttle position sensor of adjustable output voltage, comprise housing and be arranged at the interior axle sleeve of housing, described axle sleeve is used to connect the throttle body rotating shaft, rotate synchronously with described throttle body rotating shaft, fixedly install an angle sensor magnet on the described axle sleeve, also be provided with Hall element in the described housing, also axially be provided with a permanent magnet on the housing at the back side of described Hall element sensitive surface, described permanent magnet magnetic field direction can be regulated with respect to Hall element.
Further, described permanent magnet is the cylindrical permanent magnet of radial magnetizing, and described cylindrical permanent magnet is axially set in the housing rotationally;
Further, described cylindrical permanent magnet top has flight.
The Hall-type throttle position sensor of adjustable output voltage of the present utility model, change the Magnetic flux density in magnetic field from sensor internal, thereby change the output voltage of sensor, add a permanent magnet and bring bias magnetic field, and by regulating the magnetic direction of this permanent magnet, to regulate the output voltage of sensor.The utility model is simple in structure, be easy to assembling, cost is low, easy to adjust, and there are not electric connecting relation in permanent magnet and Hall circuit, do not have the electrical property interference problem.
Other advantages of the present utility model, target, to set forth in the following description to a certain extent with feature, and to a certain extent, based on being conspicuous to those skilled in the art, perhaps can from practice of the present utility model, obtain instruction to investigating hereinafter.Target of the present utility model and other advantages can be passed through following specification, claims, and the specifically noted structure realizes and obtains in the accompanying drawing.
Description of drawings
In order to make the purpose of this utility model, technological scheme and advantage clearer, the utility model is described in further detail below in conjunction with accompanying drawing:
Fig. 1 shows the structural representation of the Hall-type throttle position sensor of adjustable output voltage.
Embodiment
Below with reference to accompanying drawing, preferred embodiment of the present utility model is described.
Referring to Fig. 1, the Hall-type throttle position sensor of the adjustable output voltage of present embodiment, comprise housing 1 and the axle sleeve 2 that is arranged in the housing 1, described axle sleeve 2 is used to connect the throttle body rotating shaft, rotate synchronously with described closure rotating shaft, fixedly install an angle sensor magnet 3 on the described axle sleeve 2, also be provided with Hall element 4 in the described housing 1, also axially be provided with a cylindrical permanent magnet 5 on the housing at the back side of described Hall element 4 sensitive surface rotationally, described cylindrical permanent magnet 5 makes for radial magnetizing, described cylindrical permanent magnet 5 tops have flight 6, so that rotate.When rotating, the cylindrical permanent magnet 5 of radial magnetizing can produce the magnetic field of south, arctic variation with respect to Hall element, make output offset voltage just change, regulate cylindrical permanent magnet 5 to proper angle, the output voltage of Hall-type throttle position sensor is transferred on the right value, has been improved the production up-to-standard rate of Hall-type throttle position sensor.
The above is a preferred embodiment of the present utility model only, is not limited to the utility model, and obviously, those skilled in the art can carry out various changes and modification and not break away from spirit and scope of the present utility model the utility model.Like this, if of the present utility model these are revised and modification belongs within the scope of the utility model claim and equivalent technologies thereof, then the utility model also is intended to comprise these changes and modification interior.
Claims (3)
1. the Hall-type throttle position sensor of adjustable output voltage, comprise housing and be arranged at the interior axle sleeve of housing, described axle sleeve is used to connect the throttle body rotating shaft, rotate synchronously with described closure rotating shaft, fixedly install an angle sensor magnet on the described axle sleeve, also be provided with Hall element in the described housing, it is characterized in that: the back side of described Hall element sensitive surface also is provided with a permanent magnet, and described permanent magnet magnetic field direction can be regulated with respect to Hall element.
2. the Hall-type throttle position sensor of adjustable output voltage as claimed in claim 1, it is characterized in that: described permanent magnet is the cylindrical permanent magnet of radial magnetizing, and described cylindrical permanent magnet is axially set in the housing rotationally.
3. the Hall-type throttle position sensor of adjustable output voltage as claimed in claim 1, it is characterized in that: described cylindrical permanent magnet top has flight.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202937475U CN201714494U (en) | 2009-12-11 | 2009-12-11 | Hall type throttle position sensor capable of adjusting output voltage |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202937475U CN201714494U (en) | 2009-12-11 | 2009-12-11 | Hall type throttle position sensor capable of adjusting output voltage |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201714494U true CN201714494U (en) | 2011-01-19 |
Family
ID=43460490
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202937475U Expired - Fee Related CN201714494U (en) | 2009-12-11 | 2009-12-11 | Hall type throttle position sensor capable of adjusting output voltage |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201714494U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123250A (en) * | 2011-09-19 | 2013-05-29 | 沃尔布罗发动机使用有限责任公司 | Rotary position sensor with buffer |
-
2009
- 2009-12-11 CN CN2009202937475U patent/CN201714494U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103123250A (en) * | 2011-09-19 | 2013-05-29 | 沃尔布罗发动机使用有限责任公司 | Rotary position sensor with buffer |
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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: 20110119 Termination date: 20181211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |