CN203550970U - Thin noncontact-type electronic throttle sensor - Google Patents
Thin noncontact-type electronic throttle sensor Download PDFInfo
- Publication number
- CN203550970U CN203550970U CN201320672709.7U CN201320672709U CN203550970U CN 203550970 U CN203550970 U CN 203550970U CN 201320672709 U CN201320672709 U CN 201320672709U CN 203550970 U CN203550970 U CN 203550970U
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- electrically connected
- sensor chip
- rotor
- electronic throttle
- throttle sensor
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The utility model discloses a thin noncontact-type electronic throttle sensor, which comprises a shell and a sensing assembly. The shell comprises a main body, a pin electrically connected with an electronic control unit of an engine and two insertion springs; the pin is arranged at the edge of the main body; first ends of the two insertion springs are electrically connected with the electronic control unit of the engine; second ends of the two insertion springs are respectively connected with two wiring columns and used for being electrically connected with a direct-current motor; the sensing assembly is arranged inside the main body and comprises a circuit board, a sensor chip, a rotor, a magnet and a filter circuit, the circuit board is electrically connected with the pin, the sensor chip and the filter circuit are arranged on the circuit board, the rotor is connected with a rotation shaft of the throttle body, the magnet is embedded inside the rotor, the sensor chip is arranged close to the rotor, and the sensor chip is electrically connected with the filter circuit. The thin noncontact-type electronic throttle sensor has the beneficial effects that mechanical wear does not happen in the case of use, the service life is long, the cost is low, and the detection precision is high.
Description
Technical field
The utility model relates to engine control system technical field, particularly relates to the slim non-contact electronic throttle sensor of automobile engine control system.
Background technology
Electronic fuel injection engine is to adopt electronic control unit (engine controller), replaces traditional mechanical system (as carburetor) and carrys out control engine system.Electronic throttle is the device that combustion air is provided to electronic fuel injection engine, and its inside is provided with throttle position sensor, changes the aperture numerical value of air throttle valve block into electronic signal and transmits electronic control unit.
In prior art, for throttle opening manual drag-line or the variable-resistance detection modes of adopting of electronic fuel injection engine more.Drag-line and variable-resistance mechanical connection manner cause throttle opening precision not high, all can not realize accurate location; The variable resistor thick-film resistor forms that have contact that adopt, long-time wearing and tearing easily cause loose contact, cause that engine fuel does not mate to oil mass and dynamic property, cause fuel oil waste more.Thick-film resistor often adopts precious metal material, expensive.
Utility model content
Machinery-free wearing and tearing when the technical matters that the utility model mainly solves is to provide a kind of use, long service life, the slim non-contact electronic throttle sensor that cost is low and accuracy of detection is high.
For solving the problems of the technologies described above, the technical scheme that the utility model adopts is: a kind of slim non-contact electronic throttle sensor is provided, be used in throttle body, this slim non-contact electronic throttle sensor comprises housing and sensory package, described housing comprises body, the contact pin being 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, the second end of described two slotting springs is 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, magnet 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 for being connected with the rotating shaft of throttle body, described magnet is circular-arc and embeds in rotor, described sensor chip just arranges the side of rotor, the field signal that described sensor chip produces for detection of magnet is also converted into electric signal by the field signal detecting, described sensor chip is electrically connected with filtering circuit, described filtering circuit is for carrying out filtering processing and electric signal after treatment filtering is sent to engine electronic control unit the electric signal receiving.
Further, described sensory package also comprises the upper and lower resistance that draws, and described filtering circuit is electrically connected with engine electronic control unit by the upper and lower resistance that draws, and the described upper and lower resistance that draws is for preventing output signal and power supply or earth short.
Further, described housing also comprises plug, and described plug is by outwards outstanding formation of 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.
Further, described cavity is provided with center pit, and the rotor of described sensory package rotates and 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 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 a doubleway output sensor chip or two single channel output transducer chips.
Further, described sensor chip adopts Hall element or magnetoresistance effect chip manufacturing.
Due to the slim non-contact electronic throttle sensor of the utility model, adopt magnet that the rotary machine signal of the rotating shaft of throttle body is converted into field signal, and detect in real time field signal and field signal is converted into electric signal by sensor chip, the rotary machine signal of having realized the rotating shaft of non-contact detection air throttle, has reduced frictional dissipation.And the sensor chip adopting is Hall element or magnetoresistance effect chip, thereby it is highly sensitive that this slim non-contact electronic throttle sensor is had, good linearity, the range of linearity is wide, anti-adverse environment ability is strong, uses heatproof high, and cost is low, reliability is high, long-life, easy for installation, safeguard simple, facilitate the feature of maintenance, be applicable to the automobile of electronic fuel injection.Add, the magnet of employing is circular-arc, and the variation of field signal that rotor is produced when rotating is larger, and what can make that the profile of magnet does is thinner, less, thereby whole volume is thinner, less
Accompanying drawing explanation
Fig. 1 is the explosive view of the slim non-contact electronic throttle sensor of the utility model.
Fig. 2 is the side view of the slim non-contact electronic throttle sensor of the utility model.
Fig. 3 is the upward view of the slim non-contact electronic throttle sensor of the utility model.
Fig. 4 is the vertical view of the slim non-contact electronic throttle sensor of the utility model.
Fig. 5 be in Fig. 1 on circuit board the connection block diagram of each components and parts.
Fig. 6 is the structural representation of magnet in Fig. 1.
Fig. 7 is the vertical view of magnet in Fig. 1.
Embodiment
Below in conjunction with drawings and embodiments, the utility model is elaborated.
Please refer to shown in Fig. 1 to Fig. 5, the slim non-contact electronic throttle sensor of the utility model comprises housing 1 and sensory package 2.
Particularly, described housing 1 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 fixedly installed in body 1, the first end of described two slotting springs 15 is arranged in plug 13 and is electrically connected with engine electronic control unit, the 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 respectively and 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 is controlled the running of direct current motor by the circuit of inserting spring 15 and forming.Described body 11, contact pin 14 and slotting spring 15 are integrated.
Described sensory package 2 comprises circuit board 21, sensor chip 22, rotor 23, magnet 24, filtering circuit 25 and upper and lower resistance 26(pull-up resistor or the pull down resistor of drawing), described sensor chip 22, filtering circuit 25 and the upper and lower resistance 26 that draws are all arranged on circuit board 21, described magnet 24 is cylindrical structure, described magnet 24 is installed in rotor 23, and described rotor 23 is for being connected with the rotating shaft of throttle body.Described sensor chip 22 arranges near described rotor 23, with detect the field signal that produces of described magnet 24.The rotation of the rotation rotor driven 23 of the rotating shaft of described throttle body, thereby make the variation in the magnetic field that magnet 24 produces, the variation in the magnetic field that described sensor chip 22 produces for detection of magnet 24, is converted into electric signal by field signal, and this electric signal represents air throttle valve block angle.Described sensor chip 22 is electrically connected with filtering circuit 25, described filtering circuit 25 is connected with engine electronic control unit by the upper and lower resistance 26 that draws, described filtering circuit 25 carries out filtering to the received signal, and filtered signal is drawn in the engine electronic control unit that resistance 26 is sent to throttle body by upper and lower, engine electronic control unit calculates the electric signal receiving, draw the accurate angle of air throttle valve block, thereby can accurately control the direct current motor that drives the rotation of air throttle valve block.The described upper and lower resistance 26 that draws is used for preventing output signal and power supply or earth short.
Please refer to Fig. 6 and Fig. 7, the arrow of described Fig. 7 represents the magnetic direction of magnet 24, and in the present embodiment, magnet 24 is circular-arc, and described magnet 24 is embedded in rotor 23, and described sensor chip 22 just arranges the side of rotor 23.Circuit board 21 adopts glass cloth substrate (FR-4) or ceramic substrate material manufacture, and heat-resisting quantity is good, uses safety.Sensor chip 22 is a doubleway output sensor chip or two single channel output transducer chips, and this sensor chip 22 adopts Hall element or magnetoresistance effect chip manufacturing.Magnetoresistance effect chip is based on anisotropic magnetoresistance chip, giant magnetoresistance chip or tunneling magnetoresistance chip; Doubleway output sensor chip Yi road output signal is to increase with valve block aperture the voltage signal rising, another road output signal is to increase with valve block aperture the voltage signal declining, an output signal of two single channel output transducer chips is to increase with valve block aperture the voltage signal rising, another piece output signal is to increase with valve block aperture the voltage signal declining, the relationship consistency of its output voltage and air throttle valve block angle.Because sensor chip 22 has adopted Hall element or magnetoresistance effect chip, improve sensitivity and permanance, and can realize change curve of output by online programming, increased signal output accuracy, reduced alignment error.
Generally, described sensory package 2 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 has not only been realized to the circuit supply on circuit board 21, and realized filtering circuit 25 and be connected with the signal of engine electronic control unit by the upper and lower resistance 26 that draws, make the electric signal gathering through filtering circuit 25 sensor chip 22 after treatment be transferred to engine electronic control unit through contact pin 14.The first end of two slotting springs 15 is electrically connected with engine electronic control unit, and the projection of two slotting springs 15 is electrically connected with direct current motor, has realized engine electronic control unit according to the angle control direct current motor running of air throttle valve block.
When the utility model is installed to throttle body, need to be first rotor 23 and two binding posts 10 be aimed at respectively to the inserted sheet of rotating shaft and direct current motor, then by pilot hole 16, whole housing 1 is arranged on throttle body with screw.
The utility model is when work, and engine electronic control unit sends control signal, and this control signal arrives direct current motor by the interior two slotting springs 15 of the plug 13 on housing 1, and described direct current motor comes into operation after receiving signal.Direct current motor drives the rotating shaft of throttle body to rotate, thereby air throttle valve block angle is changed.The rotating shaft of throttle body is rotated, and also and then it rotates to make rotor 23, thereby be arranged on the magnetic field that the magnet 24 in rotor 23 produces, changes.The sensor chip 22 Real-time Collection field signals of installing facing to rotor 23 sides, described sensor chip 22 is converted to electric signal output by field signal.Described filtering circuit 25 receives the electric signal of exporting from sensor chip 22, described filtering circuit 25 carries out filtering processing to the received signal, and by upper and lower, draw the contact pin 14 in resistance 26 and plug 13 to be sent in the engine electronic control unit of throttle body filtered signal, engine electronic control unit calculates the electric signal receiving, draw the accurate angle of air throttle valve block, thereby can accurately control the direct current motor that drives the rotation of air throttle valve block.
Feature of the present utility model is: the magnet 24 of employing is circular-arc, it is installed on the rotor 23 matching with its shape, allow rotor 23 field signal that magnet 24 produces when rotating be cyclical variation, side mounting circuit boards 21 by rotor 23 makes the making of cavity 12 thinner, less, thereby integral manufacturing is thinner, less.
These are only embodiment of the present utility model; not thereby limit the scope of the claims of the present utility model; every equivalent structure or conversion of equivalent flow process that utilizes the utility model instructions and accompanying drawing content to do; or be directly or indirectly used in other relevant technical fields, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a slim non-contact electronic throttle sensor, be used in throttle body, it is characterized in that, described slim non-contact electronic throttle sensor comprises housing (1) and sensory package (2), described housing (1) comprises body (11), the contact pin (14) being electrically connected with engine electronic control unit and two slotting springs (15), described contact pin (14) is arranged at the edge of body (11), the first end of described two slotting springs (15) is electrically connected with engine electronic control unit, the second end of described two slotting springs (15) is for being electrically connected with the direct current motor of throttle body, described sensory package (2) is arranged in body (11), described sensory package (2) comprises circuit board (21), sensor chip (22), rotor (23), magnet (24) and filtering circuit (25), described circuit board (21) is electrically connected with contact pin (14), described sensor chip (22) and filtering circuit (25) are all arranged on circuit board (21), described rotor (23) is for being connected with the rotating shaft of throttle body, described magnet (24) is circular-arc and embeds in rotor (23), described sensor chip (22) just arranges the side of rotor (23), the field signal that described sensor chip (22) produces for detection of magnet (24) is also converted into electric signal by the field signal detecting, described sensor chip (22) is electrically connected with filtering circuit (25), described filtering circuit (25) is for carrying out filtering processing and electric signal after treatment filtering being sent to engine electronic control unit to the electric signal receiving.
2. slim non-contact electronic throttle sensor according to claim 1, it is characterized in that, described sensory package (2) also comprises the upper and lower resistance (26) that draws, described filtering circuit (25) is electrically connected with engine electronic control unit by the upper and lower resistance (26) that draws, and the described upper and lower resistance (26) that draws is for preventing output signal and power supply or earth short.
3. slim non-contact electronic throttle sensor according to claim 2, it is characterized in that, described housing (1) also comprises plug (13), described plug (13) is by outwards outstanding formation of body (11), and the first end of described contact pin (14) and two slotting springs (15) is all arranged in plug (13).
4. slim non-contact electronic throttle sensor according to claim 3, it is characterized in that, described housing (1) also comprises cavity (12), and described cavity (12) is arranged in body (11), and described sensory package (2) is arranged in cavity (12).
5. slim non-contact electronic throttle sensor according to claim 4, is characterized in that, described cavity (12) is provided with center pit, and the rotor (23) of described sensory package (2) rotates and is arranged in center pit.
6. slim non-contact electronic throttle sensor according to claim 1, is characterized in that, described circuit board (21) adopts glass cloth substrate or ceramic substrate material to make.
7. slim non-contact electronic throttle sensor according to claim 1, is characterized in that, the second end of described slotting spring (15) is provided with projection, and described projection is for being electrically connected with the direct current motor of throttle body.
8. slim non-contact electronic throttle sensor according to claim 7, it is characterized in that, described housing (1) also comprises projection accommodating body (10), described projection accommodating body (10) is fixedly installed in body (11), and the projection of described slotting spring (15) is arranged in projection accommodating body.
9. slim non-contact electronic throttle sensor according to claim 1, is characterized in that, described sensor chip (22) is a doubleway output sensor chip or two single channel output transducer chips.
10. slim non-contact electronic throttle sensor according to claim 1, is characterized in that, described sensor chip (22) adopts Hall element or magnetoresistance effect chip manufacturing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320672709.7U CN203550970U (en) | 2013-10-29 | 2013-10-29 | Thin noncontact-type electronic throttle sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320672709.7U CN203550970U (en) | 2013-10-29 | 2013-10-29 | Thin noncontact-type electronic throttle sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203550970U true CN203550970U (en) | 2014-04-16 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320672709.7U Expired - Fee Related CN203550970U (en) | 2013-10-29 | 2013-10-29 | Thin noncontact-type electronic throttle sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203550970U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269398A (en) * | 2018-10-16 | 2019-01-25 | 北京动力机械研究所 | A kind of digitlization angular displacement sensor signal conditioning circuit design method |
-
2013
- 2013-10-29 CN CN201320672709.7U patent/CN203550970U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109269398A (en) * | 2018-10-16 | 2019-01-25 | 北京动力机械研究所 | A kind of digitlization angular displacement sensor signal conditioning circuit design method |
| CN109269398B (en) * | 2018-10-16 | 2020-08-04 | 北京动力机械研究所 | Design method of signal conditioning circuit of digital angular displacement sensor |
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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: 20140416 Termination date: 20151029 |
|
| EXPY | Termination of patent right or utility model |