CN203455013U - Engine position sensor - Google Patents
Engine position sensor Download PDFInfo
- Publication number
- CN203455013U CN203455013U CN201320557320.8U CN201320557320U CN203455013U CN 203455013 U CN203455013 U CN 203455013U CN 201320557320 U CN201320557320 U CN 201320557320U CN 203455013 U CN203455013 U CN 203455013U
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- CN
- China
- Prior art keywords
- main shaft
- sensor
- position sensor
- engine position
- pedestal
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- 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.)
- Withdrawn - After Issue
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- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The utility model relates to an engine position sensor. The engine position sensor comprises a base. The upper end of the base is connected with a bottom seat, the lower end of the base is connected with a top cover, and a motor is mounted inside the bottom seat. The engine position sensor is characterized in that a star transmission mechanism is mounted in the top cover, and includes a main shaft and three small shafts mounted in the top cover, a big gear mounted on the main shaft and small gears respectively arranged on the small shafts; the small gear is circumferentially provided with an upper tooth ring and a lower tooth ring, and the lower tooth rings of the small gears are engaged with an inner tooth ring of the big gear, while the upper tooth rings are engaged with a tooth ring of a power output terminal of the motor; a magnetic steel is fixed at the top end of the main shaft, and a control chip is arranged at the front end of the magnetic steel. and a sensor plugging port is arranged on one side of the base and internally provided with sensor plugging terminals, and the control chip is connected with the sensor plugging terminals through wires. The engine position sensor provided by the utility model has the advantages of simple, compact, and reasonable structure, reliable and stable operation, and along service life.
Description
Technical field
The utility model relates to a kind of sensor, and especially a kind of engine position sensor, belongs to sensor technical field.
Background technology
In prior art, position transducer is the sensor changing for detection position.It can be divided into orthoscopic displacement transducer and angular displacement sensor.Orthoscopic displacement transducer is conventional straight-line displacement steady arm etc., and its serviceable life is shorter, and precision is lower.Angular displacement sensor is optional rotating potentiometer or photoelectric encoder, has reliability high, and precision is high, low cost and other advantages.
For traditional position transducer, the core methed of its information feedback is divided into two kinds from common angle: contact (brush and ceramic circuit-board) and contactless (magnet steel and chip).Contact: due to brush and ceramic circuit-board contact friction, will bring wearing and tearing, will have a greatly reduced quality its serviceable life.Contactless: the touch sensor of comparing, it does not exist the life-span of wearing and tearing and bringing to reduce problem, but common contact and non-contacting sensor have a common ground, its reset is to meet the demands by spring, therefore the fatigue lifetime of spring self, to determine the control accuracy of whole sensor, service time is longer, and control accuracy is poorer.The precision of general sensor is ± 2%.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art, and a kind of engine position sensor is provided, reliable operation, and sensing accuracy is high, long service life.
The technical scheme providing according to the utility model, described engine position sensor, comprises pedestal, and pedestal upper end connects base, and pedestal lower end connects upper cover, mounted motor in base; It is characterized in that: the ，Gai of Star gearing mechanism Star gearing mechanism is installed in described upper cover and comprises the main shaft that is arranged in upper cover and three little axles, be arranged on the gear wheel on main shaft and be separately positioned on the pinion wheel on little axle; The two ends up and down of described main shaft arrange respectively Upper shaft sleeve and Lower shaft sleeve, and gear wheel is fixed on the main shaft between Upper shaft sleeve and Lower shaft sleeve; Top gear ring and bottom gear ring are set on the outer circumference surface of described pinion wheel, and the ring gear of gear wheel meshes with the top gear ring of pinion wheel respectively, the bottom gear ring of pinion wheel and the engagement of the gear ring of motor power output terminal; The fixing magnet steel on the top of described main shaft, the front end of magnet steel arranges control chip; A side at described pedestal arranges sensor plug receptacle, and sensor plug terminal is set in sensor plug receptacle, and control chip is connected with sensor plug terminal by wire.
Described Upper shaft sleeve is between main shaft and upper cover.
Described control chip is for receiving the rotational angle signal of magnet steel and converting rotational angle signal to sensor that voltage signal is exported.
The one O type circle is set between described pedestal and upper cover, the 2nd O type circle is set between pedestal and base, in the upper end of bottom, the 3rd O type circle is installed.
Ripple packing ring is set between described Upper shaft sleeve and gear wheel.
The utility model is simple, compact and reasonable for structure; Reliable and stable work, long service life; The utility model adopts Star gearing mechanism to have advantages of that ratio of gear is accurate, efficiency is high, the life-span is long.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 be Fig. 1 partly cut open schematic diagram.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is Star gearing kinematic sketch of mechanism of the present utility model.
Embodiment
Below in conjunction with concrete accompanying drawing, the utility model is described in further detail.
As shown in FIG. 1 to 3: described engine position sensor comprises control chip 1, base 2, pedestal 3, upper cover 4, gear wheel 5, Upper shaft sleeve 6-1, Lower shaft sleeve 6-2, ripple packing ring 7, pinion wheel 8, top gear ring 8-1, bottom gear ring 8-2, magnet steel 9, an O type circle 10, the 2nd O type circle 11, main shaft 12, sensor plug receptacle 13, sensor plug terminal 14, motor 15, little axle 16, the 3rd O type circle 17 etc.
As shown in Figure 1 and Figure 2, the utility model comprises pedestal 3, and pedestal 3 upper ends connect base 2, and pedestal 3 lower ends connect upper cover 4, and in base 2, mounted motor 15; The ，Gai of Star gearing mechanism Star gearing mechanism is installed in described upper cover 4 to be comprised the main shaft 12 that is arranged in upper cover 4 and three little axles 16, is arranged on the gear wheel 5 on main shaft 12 and is separately positioned on the pinion wheel 8 on little axle 16; The two ends up and down of described main shaft 12 arrange respectively Upper shaft sleeve 6-1 and Lower shaft sleeve 6-2, and Upper shaft sleeve 6-1 is between main shaft 12 and upper cover 4, and gear wheel 5 is fixed on the main shaft 12 between Upper shaft sleeve 6-1 and Lower shaft sleeve 6-2; Top gear ring 8-1 and bottom gear ring 8-2 are set on the outer circumference surface of described pinion wheel 8, the ring gear of gear wheel 5 meshes with the top gear ring 8-1 of pinion wheel 8 respectively, the bottom gear ring 8-2 of pinion wheel 8 and the gear ring of motor 15 clutch ends engagement (as shown in Figure 4);
The fixing magnet steel 9 on the top of described main shaft 12, the front end of magnet steel 9 arranges control chip 1, and control chip 1 is for experiencing the rotational angle of magnet steel 9 and rotational angle be converted to the sensor of voltage signal output, as angular transducer; A side at described pedestal 3 arranges sensor plug receptacle 13, and sensor plug terminal 14 is set in sensor plug receptacle 13, and control chip 1 is connected with sensor plug terminal 14 by wire;
As shown in Figure 2, an O type circle 10 is set between described pedestal 3 and upper cover 4, the 2nd O type circle 11 is set between pedestal 3 and base 2, in bottom, the 3rd O type circle 17 is installed in 2 upper end;
As shown in Figure 2, between described Upper shaft sleeve 6-1 and gear wheel 5, ripple packing ring 7 is set.
Principle of work of the present utility model: motor 15 rotates, drives pinion wheel 8 to rotate, and pinion wheel 8 drives gear wheel 5 to rotate (as shown in Figure 4) again; Gear wheel 5 drives main shaft 12 to rotate, the magnet steel 9 on main shaft 12 tops also rotates, the control chip 1 of magnet steel 9 front ends is accepted the signal of the rotational angle of magnet steel 9, convert thereof into voltage signal, by sensor plug terminal 14, transfer to the electronic control unit (ECU) of engine position sensor outside, ECU judges voltage signal, when the voltage signal of output and desired signal are when there is any discrepancy, ECU sends adjustment signal again, motor 15 rotates, until real output signal=desired signal * (1 ± 1%).
Environment for use temperature of the present utility model is-40 ℃～+ 125 ℃, and the material of selecting gear is polyethersulfone resin (PES); There is excellent thermotolerance, good dimensional stability, and good chemical-resistant; PES also has the reliability that dramatic temperature is changed to exhibit excellent in addition, long-term use of high temperature, has good reliability, the reliability that processing forming is good, this material can guarantee that the life-span of this product is long.
Claims (5)
1. an engine position sensor, comprises pedestal (3), and pedestal (3) upper end connects base (2), and pedestal (3) lower end connects upper cover (4), mounted motor (15) in base (2); It is characterized in that: the ，Gai of Star gearing mechanism Star gearing mechanism is installed in described upper cover (4) and comprises the main shaft (12) and the three little axles (16) that are arranged in upper cover (4), be arranged on the gear wheel (5) on main shaft (12) and be separately positioned on the pinion wheel (8) on little axle (16); The two ends up and down of described main shaft (12) arrange respectively Upper shaft sleeve (6-1) and Lower shaft sleeve (6-2), and gear wheel (5) is fixed on the main shaft (12) between Upper shaft sleeve (6-1) and Lower shaft sleeve (6-2); Top gear ring (8-1) and bottom gear ring (8-2) are set on the outer circumference surface of described pinion wheel (8), the ring gear of gear wheel (5) meshes with the top gear ring (8-1) of pinion wheel (8) respectively, and the bottom gear ring (8-2) of pinion wheel (8) meshes with the gear ring of motor (15) clutch end; The fixing magnet steel (9) on the top of described main shaft (12), the front end of magnet steel (9) arranges control chip (1); A side at described pedestal (3) arranges sensor plug receptacle (13), and sensor plug terminal (14) is set in sensor plug receptacle (13), and control chip (1) is connected with sensor plug terminal (14) by wire.
2. engine position sensor as claimed in claim 1, is characterized in that: described Upper shaft sleeve (6-1) is positioned between main shaft (12) and upper cover (4).
3. engine position sensor as claimed in claim 1, is characterized in that: described control chip (1) is for receiving the rotational angle signal of magnet steel (9) and converting rotational angle signal to sensor that voltage signal is exported.
4. engine position sensor as claimed in claim 1, it is characterized in that: an O type circle (10) is set between described pedestal (3) and upper cover (4), the 2nd O type circle (11) is set between pedestal (3) and base (2), and in bottom, the 3rd O type circle (17) is installed in the upper end of (2).
5. engine position sensor as claimed in claim 1, is characterized in that: between described Upper shaft sleeve (6-1) and gear wheel (5), ripple packing ring (7) is set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557320.8U CN203455013U (en) | 2013-09-09 | 2013-09-09 | Engine position sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320557320.8U CN203455013U (en) | 2013-09-09 | 2013-09-09 | Engine position sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203455013U true CN203455013U (en) | 2014-02-26 |
Family
ID=50134880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320557320.8U Withdrawn - After Issue CN203455013U (en) | 2013-09-09 | 2013-09-09 | Engine position sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203455013U (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 |
-
2013
- 2013-09-09 CN CN201320557320.8U patent/CN203455013U/en not_active Withdrawn - After Issue
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 | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140226 Effective date of abandoning: 20151007 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |