CN201673165U - Speed sensor of motorcycle - Google Patents
Speed sensor of motorcycle Download PDFInfo
- Publication number
- CN201673165U CN201673165U CN2010202111576U CN201020211157U CN201673165U CN 201673165 U CN201673165 U CN 201673165U CN 2010202111576 U CN2010202111576 U CN 2010202111576U CN 201020211157 U CN201020211157 U CN 201020211157U CN 201673165 U CN201673165 U CN 201673165U
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- motorcycle
- rotary body
- circuit
- sensor circuit
- hall
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Abstract
A speed sensor of motorcycle is a device which can accurately convert a mechanical rotation signal of motorcycle engine to an electric pulse signal. The speed sensor of motorcycle further has the advantages of small occupation space and convenient assembling.
Description
Technical field
The utility model relates to a kind of vehicular electrical appliance field, is specifically related to a kind of motorcycle speed sensors.
Background technology
Recent development along with the electronic type motorcycle, requirement to tach signal is more and more higher, utilize Hall element that the mode that tach signal is transformed into electric pulse is begun to increase, but present Hall element vehicle speed sensor itself does not have rotatable parts, they are by being installed near the induced signal of rotatable parts on the motorcycle, because the error of installing and locating makes the output signal instability, one week of motorcycle rotatable parts, the umber of pulse of output is few, and precision is not high; Simultaneously present Hall element vehicle speed sensor needs extra locator meams to be fixed on the motorcycle, increases installing space and cost.
Summary of the invention
The technical solution of the utility model is: the motorcycle speed sensors, comprise shell and cased sensor circuit, dress rotary body in the shell, rotary body external part be connected with the rotatable parts of motorcycle and with its interlock; Rotary body remains in the axle sleeve, and axle sleeve is fixing, and there is magnet ring the lower end of rotary body in the enclosure, and magnet ring has magnetic pole, and magnetic pole keeps minim gap with fixing sensor circuit in the enclosure; During engine rotation, the driven rotary body rotates, and rotary body drives magnet ring and rotates, and magnetic field promptly changes, and the Hall element on the sensor circuit produces square-wave pulse with changes of magnetic field.The core of sensor circuit adopts Hall circuit A3280 or A1221, and volume is little, and is highly sensitive, and temperature tolerance is good, and the power end of Hall circuit A3280 or A1221 connects the 12V power supply by current-limiting resistance R1.Vehicle speed sensor links to each other with external circuits by connector, and connector is three ends, a termination power positive pole, an end ground connection, a termination square-wave output signal.
At sensor internal rotary body is set, has guaranteed the stationkeeping between Hall element and the rotary body, thereby obtain the stable rotating speed signal; Many to magnetic pole by being provided with on the placement body, a plurality of square-wave pulse signals of the moving week output of rotary body revolution improve sensor accuracy greatly; Adopt Hall circuit A3280 or A1221 core, make that sensor bulk is little, highly sensitive, temperature tolerance is good as sensor circuit; The shell that adopts can directly replace present mechanical gear box, need not increase installing space and cost.
Description of drawings
Below in conjunction with embodiment the utility model is further specified.
Fig. 1 is this vehicle speed sensor scheme 1 shape assumption diagram.
The A-A sectional view of Fig. 2 Fig. 1.
Fig. 3 is the circuit theory diagrams of an embodiment.
Fig. 4 is the rotary body legend.
1. shells among the figure, 2. sensor circuit, 3. pin, 4. connector, 5. rotary body, 6. axle sleeve
Fig. 5 is the conceptual scheme and the rotary body legend of another kind of similar structures, and circuit theory diagrams are with scheme 1.
1. shells among the figure, 2. O-ring seal, 3. split washer, 4. packing ring, 5. axle sleeve, 6. rotary body 7. sensor circuits
Embodiment
Referring to Fig. 1 and Fig. 2, shell 1 and rotary body 5 all adopt working of plastics, sensor circuit 2 and rotary body 5 are installed in the shell 1, axle sleeve 6 is arranged on the shell 1, rotary body 5 can rotate on axle sleeve 6, and magnet ring is arranged at rotary body 2 bottoms, and 8 pairs or 16 pairs of magnetic poles are arranged on the magnet ring, magnetic pole and sensor circuit keep the gap of 1mm
Sensor circuit such as Fig. 3, its core component adopts the A3280 or the A1221 Hall circuit of Allegro Microsystems company, and volume is little, highly sensitive, temperature tolerance is good, amplifies output by triode.The power end of Hall circuit is imported the 12V power supply by current-limiting resistance R1, the external pull-up resistor R2 of Hall circuit output terminal, and capacitor C 1 is connected on the Hall circuit input end, and capacitor C 2 is connected on the output terminal.Sensor circuit partly adopts plastic injection-moulded encapsulation in aggregates, has high barrier propterty, and sensor circuit is adorned 2 shells 1 of packing into, and is fixing by pin 3.
Referring to Fig. 1, sensor is by connector 4 outputs, connector can mate according to customer requirement, connector is three ends, one termination power positive pole "+", one end is output terminal " S ", one end is a ground connection "-", rotary body 5 revolutions move a week, export 8 or 16 square-wave pulses, and vehicle speed sensor is connected by Fig. 3 explanation with external circuitry, three termination card power supply termination Vehicular accumulator cell positive poles, ground connection termination Vehicular accumulator cell negative pole, output terminal connect by pull-up resistor R2 and draw power supply, during use output amplitude by on draw the power Vcc decision.
The utility model the key technical indexes is as follows:
1, operating voltage Vcc:5-20V;
2, maximal work voltage: 24V, 1 minute;
3, high negative pressure: 16V;
4, maximum operating currenbt: 10mA (the supreme resistance that draws);
5, output low level: 500mV;
6, output high level: Vcc (connect and draw resistance);
7, output signal dutycycle: (50 ± 10) %;
8, temperature range :-20 ℃ to+80 ℃;
9, output signal: square wave, the every rotation 1 week output of rotary body 8 or 16 pulses.
Claims (3)
1. the motorcycle speed sensors comprises shell and cased sensor circuit, and its thing is levied and is: dress rotary body in the shell, and the rotary body external part is connected with the rotatable parts of motorcycle; Magnet ring is equipped with in the lower end of rotary body, and magnet ring is equipped with magnetic pole, and magnetic pole keeps minim gap with fixing sensor circuit in the enclosure; The core of sensor circuit adopts Hall circuit, and the power supply of Hall circuit passes through resistance R 1 external 12V power supply, the external pull-up resistor R2 of Hall circuit output terminal, and capacitor C 1 is connected on the Hall circuit input end, and capacitor C 2 is connected on the output terminal.
2. motorcycle speed sensors according to claim 1 is characterized in that: the Hall circuit of sensor circuit adopts A3280 or A1221.
3. motorcycle speed sensors according to claim 1 and 2 is characterized in that: at magnet ring upper edge circumference 8 pairs or 16 pairs of magnetic poles are housed evenly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202111576U CN201673165U (en) | 2010-06-01 | 2010-06-01 | Speed sensor of motorcycle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010202111576U CN201673165U (en) | 2010-06-01 | 2010-06-01 | Speed sensor of motorcycle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201673165U true CN201673165U (en) | 2010-12-15 |
Family
ID=43330577
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010202111576U Expired - Fee Related CN201673165U (en) | 2010-06-01 | 2010-06-01 | Speed sensor of motorcycle |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201673165U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414785A (en) * | 2018-05-03 | 2018-08-17 | 苏州微测电子有限公司 | Sensor and detection device |
-
2010
- 2010-06-01 CN CN2010202111576U patent/CN201673165U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414785A (en) * | 2018-05-03 | 2018-08-17 | 苏州微测电子有限公司 | Sensor and detection device |
| CN108414785B (en) * | 2018-05-03 | 2024-07-12 | 苏州微测电子有限公司 | Sensor and detection device |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101215 Termination date: 20170601 |