CN204705315U - Non-contact electronic throttle sensor - Google Patents
Non-contact electronic throttle sensor Download PDFInfo
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- CN204705315U CN204705315U CN201520434825.4U CN201520434825U CN204705315U CN 204705315 U CN204705315 U CN 204705315U CN 201520434825 U CN201520434825 U CN 201520434825U CN 204705315 U CN204705315 U CN 204705315U
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- contact pin
- sensor chip
- electrically connected
- magnet ring
- rotor
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- 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
The utility model provides a kind of non-contact electronic throttle sensor, comprise housing and sensory package, housing comprises body, the contact pin be electrically connected with engine electronic control unit and two slotting springs, contact pin is arranged at the edge of body, the first end of two slotting springs is electrically connected with engine electronic control unit, second end of two slotting springs is used for being electrically connected with the direct current motor of throttle body, sensory package is arranged in body, sensory package comprises circuit board, sensor chip, rotor, rotating shaft, magnet ring and filtering circuit, circuit board is electrically connected with contact pin, sensor chip and filtering circuit are all arranged on circuit board, rotor is used for being connected with the rotating shaft of throttle body, described magnet ring is arranged in rotor, magnet ring is cylindrical structure, sensor chip is just arranged magnet ring end face, sensor chip is arranged near rotor.Mechanical wearing and tearing, long service life when the utility model uses, cost is low and accuracy of detection is high.
Description
Technical field
The utility model belongs to engine control system technical field, particularly a kind of non-contact electronic throttle sensor of automobile engine control system.
Background technology
Along with the enforcement of motorcycle exhaust discharge state three standard, electronic fuel injection technology oneself be progressively applied.Motorcycle engine system is provided with throttle position sensor usually.It changes the position signalling of air throttle into voltage signal and is transferred to inside control unit of engine, and then control unit of engine is according to this voltage signal, accurately controls oil spout igniting.
At present, motor car engine is provided with electronic air throttle body usually, above with throttle opening position sensor.This sensor changes valve plates mechanical location into voltage signal and is transferred to inside control unit of engine, and then control unit of engine is according to this voltage signal, accurately controls air inflow.
Ordinary electronic 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-Time Service can cause output signal inaccurate, and owing to using noble metal to cause on the high side.In addition, general contactless Hall element adopts solid permanent magnet, and surrounding magnetic field variable gradient is comparatively large, and angular error is relatively large.
Utility model content
Low and the non-contact electronic throttle sensor that accuracy of detection is high of mechanical wearing and tearing when the purpose of this utility model is to provide a kind of use, long service life, cost.
For solving the problems of the technologies described above, the technology power case that the utility model adopts is: provide a kind of non-contact electronic throttle sensor, it comprises housing and sensory package, described housing comprises body, the contact pin be electrically connected with engine electronic control unit and two slotting springs, described contact pin is arranged at the edge of body, the first end of described two slotting springs is electrically connected with engine electronic control unit, second end of described two slotting springs is used for being electrically connected with the direct current motor of throttle body, described sensory package is arranged in body, described sensory package comprises circuit board, sensor chip, rotor, rotating shaft, magnet ring and filtering circuit, described circuit board is electrically connected with contact pin, described sensor chip and filtering circuit are all arranged on circuit board, described rotor is used for being connected with the rotating shaft of throttle body, described magnet ring is arranged in rotor, described magnet ring is cylindrical structure, described sensor chip is just arranged magnet ring end face, described sensor chip is arranged near rotor, described sensor chip is for detecting the field signal of magnet ring generation and the field signal detected being converted into electric signal, described sensor chip is electrically connected with filtering circuit, described filtering circuit is used for carrying out filtering process to the electric signal received and the electric signal after filtering process being sent to engine electronic control unit.
Further, described contact pin is disposed with that electrode negative, motor positive pole, input voltage are negative, the first output sensor signal, input voltage just with the second output sensor signal.
Further, described sensory package also comprises upper and lower pull-up resistor, and described filtering circuit is electrically connected with engine electronic control unit by upper and lower pull-up resistor, and described upper and lower pull-up resistor is for preventing the electric signal after filtering process and power supply or earth short.
Further, described housing also comprises plug, and described plug is outwardly formed by body, and the first end of described contact pin and two slotting springs is all arranged in plug.
Further, described housing also comprises cavity, and described cavity is arranged in body, and described sensory package is arranged in cavity, and described cavity is provided with center pit, and the rotor turns of described sensory package is arranged in center pit.
Further, described circuit board adopts glass cloth substrate or ceramic substrate material to make.
Further, the second end of described slotting spring is provided with projection, and described projection is used for being electrically connected with the direct current motor of throttle body.
Further, described housing also comprises projection accommodating body, and described projection accommodating body is fixedly installed in body, and the projection of described slotting spring is arranged in projection accommodating body.
Further, described sensor chip is one piece of doubleway output sensor chip or two pieces of single channel output transducer chips.
Further, described sensor chip adopts Hall element or magnetoresistance effect chip manufacturing.
Due to the utility model non-contact electronic throttle sensor, adopt magnet ring that the rotary machine signal of the rotating shaft of throttle body is converted into field signal, and detect field signal in real time by sensor chip and field signal is converted into electric signal, achieve the rotary machine signal of non-contact detection air throttle rotating shaft, decrease frictional dissipation.
Sensor chip just to magnet ring end face, be by magnet ring end face produce magnetic field, be end face produce the magnetic line of force, compared to sensor chip just to magnet ring side, this structure production technology and want cube little in more easily realize.Adopt Hall element or magnetoresistance effect chip as sensor chip, make this non-contact electronic throttle sensor have highly sensitive, good linearity, the range of linearity is wide, anti-adverse environment ability is strong, and use heatproof high, cost is low, reliability is high, long-life, installing force just, is safeguarded simple, the feature of convenient maintenance, is applicable to the automobile of electronic fuel injection.
Accompanying drawing explanation
Fig. 1 is explosive view of the present utility model.
Fig. 2 is structural representation of the present utility model.
Fig. 3 is the structural representation after the utility model rotor, magnet ring and rotating shaft combination.
Fig. 4 is the connection block diagram of each components and parts on circuit board.
Fig. 5 is the structural representation of Fig. 1 middle magnetic ring.
Fig. 6 is the side view of Fig. 5 middle magnetic ring.
In figure, 10, projection accommodating body; 11, body; 12, cavity; 121, cavity lid; 13, plug; 14, contact pin; 15, spring is inserted; 16, pilot hole; 21, circuit board; 22, sensor chip; 23, rotor; 24, magnet ring; 25, filtering circuit; 26, upper and lower pull-up resistor; 27, rotating shaft.
Embodiment
The technological means realized to make the utility model, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the utility model further.
As shown in figures 1 to 6, the utility model comprises housing and sensory package.Particularly, described housing comprises body 11, cavity 12, plug 13, contact pin 14, two slotting springs 15 and two projection accommodating bodies 10, the edge of described body 11 is provided with several pilot holes 16, described body 11 stretches out and forms plug 13, described contact pin 14 is arranged in plug 13, described cavity 12 and two projection accommodating bodies 10 are all with being surely arranged in body 11, the first end of described two slotting springs 15 to be arranged in plug 13 and to be electrically connected with engine electronic control unit, second end of described two slotting springs 15 is provided with projection, the projection of described two slotting springs 15 is connected with two projection accommodating bodies 10 and respectively for being electrically connected with the direct current motor of throttle body.Described cavity 12 comprises cavity lid 121, and described cavity 12 is provided with a center pit, and described cavity lid 121 is connected with the lower end of cavity 12.Describedly be arranged at contact pin 14 in plug 13 for docking with the connection terminal of engine electronic control unit, this engine electronic control unit controls the running of direct current motor by the circuit that contact pin 14 and slotting spring 15 are formed.Described body 11, contact pin 14 and slotting spring 15 are one-body molded.
Described sensory package comprises circuit board 21, sensor chip 22, rotor 23, rotating shaft 27, magnet ring 24, filtering circuit 25 and upper and lower pull-up resistor 26, described sensor chip 22, filtering circuit 25 and upper and lower pull-up resistor 26 are all arranged on circuit board 21, described magnet ring 24 is arranged in rotor 23, described magnet ring 24 is cylindrical structure, and described sensor chip 22 is just arranged magnet ring 24 end face.Described rotor 23 is for being connected with the rotating shaft 27 of throttle body.Described sensor chip 22 is arranged near described rotor 23, for detecting the field signal that described magnet ring 24 produces.The rotation of the rotation rotor driven 23 of the rotating shaft 27 of described throttle body, thus make the change in the magnetic field in magnet ring 24 product, described sensor chip 22 is for detecting the change in the magnetic field of magnet ring 24 generation, and field signal is converted into electric signal, and this electric signal represents throttler valve angle.Described sensor chip 22 is electrically connected with filtering circuit 25, described filtering circuit 25 is connected with engine electronic control unit by upper and lower pull-up resistor 26, described filtering circuit 25 carries out filtering to the received signal, and filtered signal is sent in the engine electronic control unit of throttle body by upper and lower pull-up resistor 26, engine electronic control unit calculates the electric signal received, draw the accurate angle of air throttle valve block, thus accurately can control the direct current motor driving throttler valve rotation.Described upper and lower pull-up resistor 26 is used for preventing output signal and power supply or earth short.
Particularly, sensor chip 22 just to magnet ring 24 end face, be by magnet ring 24 end face produce magnetic field, be end face produce the magnetic line of force, compared to sensor chip 22 just to magnet ring 24 side, this structure production technology and want cube little in more easily realize.
The non-contact electronic throttle sensor that the utility model provides, adopt magnet ring 24 that the rotary machine signal of the rotating shaft 27 of throttle body is converted into field signal, and detect field signal in real time by sensor chip 22 and field signal is converted into electric signal, achieve the rotary machine signal of non-contact detection air throttle rotating shaft 27, decrease frictional dissipation.And the sensor chip 22 that day adopts is Hall element or magnetoresistance effect chip, thus this non-contact electronic throttle sensor is made to have highly sensitive, good linearity, the range of linearity is wide, anti-adverse environment ability is strong, and use heatproof high, cost is low, reliability is high, long-life, installing force just, is safeguarded simple, the feature of convenient maintenance, is applicable to the automobile of electronic fuel injection.
As illustrated in fig. 1 and 2, in the present embodiment, the structure of described rotor 23 and the structure of magnet ring 24 match, and described sensor chip 22 is arranged at the bottom of rotor 23, thus are beneficial to sensor chip 22 and detect field signal.Circuit board 21 adopts glass cloth substrate (FR-4) or ceramic substrate material to manufacture, and heat-resisting quantity is good, use safety.Sensor chip 22 is one piece of doubleway output sensor chip 22 or two pieces of single channel output transducer chips 22, and this sensor chip 22 adopts Hall element or magnetoresistance effect chip manufacturing.Magnetoresistance effect chip is for fall magneto-resistor chip, giant magnetoresistance chip or tunneling magnetoresistance chip based on each to different one; One tunnel output signal of doubleway output sensor chip 22 is the voltage signals increasing with valve H aperture and rise, another road output signal is the voltage signal increasing with valve block aperture and decline, one piece of output signal of two pieces of single channel output transducer chips 22 is the voltage signals increasing with valve block aperture and rise, another block output signal is the voltage signal increasing with valve block aperture and decline, the relationship consistency of its output voltage and throttler valve angle.Because sensor chip 22 have employed Hall element or magnetoresistance effect chip, improve sensitivity and permanance, and change curve of output can be realized by online programming, add signal output accuracy, decrease alignment error.
Generally, described sensory package is wholy set in cavity 12, and described rotor 23 is arranged in the center pit of cavity 12 rotationally.Described contact pin 14 is electrically connected with circuit board 21, contact pin 14 not only achieves powers to the circuit on circuit board 21, and also achieve filtering circuit 25 and be connected with the signal of engine electronic control unit by upper and lower pull-up resistor 26, the electric signal that the sensor chip 22 after filtering circuit 25 processes is gathered is transferred to engine electronic control unit through contact pin 14.The first end of two slotting springs 15 to be arranged in plug 13 and to be electrically connected with engine electronic control unit, the projection of two slotting springs 15 is electrically connected with direct current motor, achieves engine electronic control unit and operates according to the Angle ambiguity direct current motor of solar term valve block.
For reducing electric signal interference, described contact pin 14 is disposed with electrode negative contact pin 14, motor positive pole contact pin 14, ground wire contact pin 14, first output sensor signal contact pin 14, input voltage positive pole contact pin 14 and the second output sensor signal contact pin 14.
The design principle of disposal wires reducing signal interference is: 1, forceful electric power and light current separate as far as possible; If 2, forceful electric power and light current must intersect, preferably square crossing; 3, weak electric signal adopts shielding line as far as possible.
The utility model have employed principle 1, i.e. electrode negative contact pin 14, motor positive pole contact pin 14, ground wire contact pin 14, first output sensor signal contact pin 14, input voltage positive pole contact pin 14 and the second output sensor signal contact pin 14.Electrode negative contact pin 14 and motor positive pole contact pin 14 are forceful electric power signals, first output sensor signal contact pin 14 and the second output sensor signal contact pin 14 are weak electric signals, so intert ground wire contact pin 14 between them, and by forceful electric power and light current separately, decrease electric signal interference.
When the utility model is installed to throttle body, needs the inserted sheet first rotor 23 and two binding posts being aimed at respectively rotating shaft 27 and direct current motor, then by pilot hole 16, whole housing is arranged on throttle body with screw.
Operationally, engine electronic control unit sends control signal to the utility model, and this control signal arrives direct current motor by the interior two slotting springs 15 of the plug 13 on housing, and described direct current motor comes into operation after receiving signal.Direct current motor drives the rotating shaft 27 of throttle body to rotate, thus air throttle valve block angle is changed.The rotating shaft 27 of throttle body is rotated, and also and then it rotates to make rotor 23, thus the magnetic field being arranged on magnet ring 24 generation in rotor 23 changes.Facing to the sensor chip 22 Real-time Collection field signal that rotor 23 side is installed, field signal is converted to electric signal and exports by described sensor chip 22.Described filtering circuit 25 receives the electric signal exported from sensor chip 22, described filtered electrical hoof carries out filtering process to the received signal, and filtered signal is sent in the engine electronic control unit of throttle body by the contact pin 14 in upper and lower pull-up resistor 26 and plug 13, engine electronic control unit calculates the electric signal received, draw the accurate angle of air throttle valve block, thus accurately can control the direct current motor driving throttler valve rotation.
These are only embodiment of the present utility model; not thereby the scope of the claims of the present utility model is limited; every equivalent structure utilizing the utility model instructions and accompanying drawing content to do; directly or indirectly be used in the technical field that other are relevant, all in like manner within scope of patent protection of the present utility model.
Claims (10)
1. non-contact electronic throttle sensor, it is characterized in that, comprise housing and sensory package, described housing comprises body, the contact pin be electrically connected with engine electronic control unit and two slotting springs, described contact pin is arranged at the edge of body, the first end of described two slotting springs is electrically connected with engine electronic control unit, second end of described two slotting springs is used for being electrically connected with the direct current motor of throttle body, described sensory package is arranged in body, described sensory package comprises circuit board, sensor chip, rotor, rotating shaft, magnet ring and filtering circuit, described circuit board is electrically connected with contact pin, described sensor chip and filtering circuit are all arranged on circuit board, described rotor is used for being connected with the rotating shaft of throttle body, described magnet ring is arranged in rotor, described magnet ring is cylindrical structure, described sensor chip is just arranged magnet ring end face, described sensor chip is arranged near rotor, described sensor chip is for detecting the field signal of magnet ring generation and the field signal detected being converted into electric signal, described sensor chip is electrically connected with filtering circuit, described filtering circuit is used for carrying out filtering process to the electric signal received and the electric signal after filtering process being sent to engine electronic control unit.
2. armpit is according to non-contact electronic throttle sensor according to claim 1, it is characterized in that, described contact pin is disposed with electrode negative contact pin, motor positive pole contact pin, ground wire contact pin, the first output sensor signal contact pin, input voltage positive pole contact pin and the second output sensor signal contact pin.
3. armpit is according to non-contact electronic throttle sensor according to claim 1, it is characterized in that, described sensory package also comprises upper and lower pull-up resistor, described filtering circuit is electrically connected with engine electronic control unit by upper and lower pull-up resistor, and described upper and lower pull-up resistor is for preventing the electric signal after filtering process and power supply or earth short.
4. non-contact electronic throttle sensor according to claim 3, is characterized in that, described housing also comprises plug, and described plug is outwardly formed by body, and the first end of described contact pin and two slotting springs is all arranged in plug.
5. non-contact electronic throttle sensor according to claim 4, it is characterized in that, described housing also comprises cavity, described cavity is arranged in body, described sensory package is arranged in cavity, described cavity is provided with center pit, and the rotor turns of described sensory package is arranged in center pit.
6. non-contact electronic throttle sensor according to claim 1, is characterized in that, described circuit board adopts glass cloth substrate or ceramic substrate material to make.
7. non-contact electronic throttle sensor according to claim 1, is characterized in that, the second end of described slotting spring is provided with projection, and described projection is used for being electrically connected with the direct current motor of throttle body.
8. non-contact electronic throttle sensor according to claim 7, is characterized in that, described housing also comprises projection accommodating body, and described projection accommodating body is fixedly installed in body, and the projection of described slotting spring is arranged in projection accommodating body.
9. non-contact electronic throttle sensor according to claim 1, is characterized in that, described sensor chip is one piece of doubleway output sensor chip or two pieces of single channel output transducer chips.
10. non-contact electronic throttle sensor according to claim 1, is characterized in that, described sensor chip adopts Hall element or magnetoresistance effect chip manufacturing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520434825.4U CN204705315U (en) | 2015-06-23 | 2015-06-23 | Non-contact electronic throttle sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520434825.4U CN204705315U (en) | 2015-06-23 | 2015-06-23 | Non-contact electronic throttle sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204705315U true CN204705315U (en) | 2015-10-14 |
Family
ID=54284920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520434825.4U Active CN204705315U (en) | 2015-06-23 | 2015-06-23 | Non-contact electronic throttle sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204705315U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448301A (en) * | 2017-08-31 | 2017-12-08 | 浙江鸿科机车部件有限公司 | A kind of throttle body assembly |
-
2015
- 2015-06-23 CN CN201520434825.4U patent/CN204705315U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107448301A (en) * | 2017-08-31 | 2017-12-08 | 浙江鸿科机车部件有限公司 | A kind of throttle body assembly |
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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 | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Northern New Chongqing 401122 ring Yunzao Road No. 3 Patentee after: United Automotive Electronics (Chongqing) Co., Ltd. Address before: Northern New Chongqing 401122 ring Yunzao Road No. 3 Patentee before: CHONGQING CHANGAN VISTEON ENGINE CONTROL SYSTEMS CO., LTD. |