CN102392742B - Electronic throttle body - Google Patents
Electronic throttle body Download PDFInfo
- Publication number
- CN102392742B CN102392742B CN201110306872.7A CN201110306872A CN102392742B CN 102392742 B CN102392742 B CN 102392742B CN 201110306872 A CN201110306872 A CN 201110306872A CN 102392742 B CN102392742 B CN 102392742B
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- Prior art keywords
- torsion spring
- tooth sector
- throttle
- limit mechanism
- positive stop
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Abstract
The invention discloses an electronic throttle body which comprises a throttle body (1), a throttle shaft (2), a throttle plate (3), a position sensor (4) and a DC (direct current) motor, wherein a motor gear arranged on the DC motor is meshed with a middle gear arranged on the throttle body (1), the middle gear is meshed with a sector gear arranged on the throttle shaft (2), a limiting mechanism is arranged on the throttle body (1) and the sector gear, and a torsional spring is connected with the throttle body and the sector gear; when the DC motor does not output power, the throttle plate (3) is located at a high-idling position under the torsional action of the torsional spring; and the torsional spring is composed of a left torsional spring and a right torsional spring which are connected by a middle end. The electronic throttle body disclosed by the invention has the advantages that when one of the two torsional springs fails, the other torsional spring still can control the throttle plate to reset to the high-idling position, thereby improving the security.
Description
Technical field
The present invention relates to a kind of throttle body, be specifically related to a kind of electronic air throttle body.
Background technique
Along with the development of automotive engineering, electronic air throttle body has obtained application more and more widely, has replaced gradually traditional mechanical throttle valve body.Electronic throttle is for setting up control system of electronic throttle valve, and this system can realize the FR best torque output of motor, and the accurate throttle opening of controlling, improve the motor emission performance.All include two non-touching Returnning springs in current electronic throttle, when motor is not worked, under the acting in conjunction of two Returnning springs, make throttle blade get back to initial position.But if one of them spring damages, just throttle blade can't reset.In vehicle traveling process, if Returnning spring lost efficacy, probably cause take charge, accident.
Summary of the invention
Purpose of the present invention is to overcome the deficiencies in the prior art, and a kind of safe electronic throttle is provided.
Purpose of the present invention is achieved through the following technical solutions:
Electronic air throttle body, comprise, tb, be arranged on the throttle plate pin on tb, be arranged on the throttle blade on throttle plate pin, the position transducer be connected with throttle plate pin, be arranged on the direct current generator on tb, on described throttle plate pin, tooth sector is installed, described tooth sector and the intermediate gear engagement be arranged on tb, described intermediate gear and the motor gear engagement be arranged on direct current generator;
Be provided with body positive stop B, body positive stop A, body position-limit mechanism A, body position-limit mechanism B on tb, be provided with tooth sector positive stop A, tooth sector positive stop B, tooth sector position-limit mechanism on tooth sector, when the tooth sector reversion, when tooth sector positive stop A arrives to body positive stop A, throttle plate pin is positioned at fully open position, when the tooth sector forward, when tooth sector positive stop B arrives on body positive stop B, throttle plate pin is positioned at low idle position;
Torsion spring is connected to form by middle end by left torsion spring and right torsion spring, left torsion spring is fixed on tb, right torsion spring is fixed on tooth sector, middle end contacts with the body position-limit mechanism with the tooth sector position-limit mechanism, and under nature, the torsion of torsion spring 8 makes throttle plate pin 2 be positioned at the high idle speed position.
The rotation direction of described left torsion spring is contrary with the rotation direction of right torsion spring, and the central diameter of left torsion spring is greater than the central diameter of right torsion spring, is provided with left torsion spring leg on left torsion spring, is provided with right torsion spring leg on right torsion spring, is provided with the middle end leg on middle end;
Left torsion spring leg and body position-limit mechanism A, right torsion spring leg contacts with the tooth sector position-limit mechanism, and the middle end leg contacts with body position-limit mechanism B with the tooth sector position-limit mechanism.
Described direct current generator is arranged on tb by wave washer and three hole pressing plates, wave washer is installed on the ear end face of direct current generator, three hole pressing plates are fixed on tb, and be socketed on the front-end face of direct current generator, motor gear stretches out from the center hole of three hole pressing plates, on three hole pressing plates, is provided with spacing leg.
Described throttle plate pin adopts flat slot type elastic washer to be connected with position transducer, forms drive fit.
Described position transducer and body are fixed by clip connected.
According to top narration, can find out, advantage of the present invention is:
1. torsion spring is comprised of two of the left and right contrary torsion spring of rotation direction, and when one of them torsion spring lost efficacy, another torsion spring still can be controlled throttle blade and be reset to the high idle speed position, has improved Security.And it is minimum that two contrary torsion springs of rotation direction can be reduced to resonance, improve the torsion spring life-span.
2. be provided with spacing leg on three hole pressing plates, can prevent misloading.
3. between direct current generator and tb, wave washer is installed, can plays effective damping effect, solved and caused the problems such as straight stream motor contact is unreliable, fatigue fracture because of the direct current generator shake.
4, throttle plate pin and sensor interface place adopt flat slot type elastic washer linkage structure, and rotor sensor and throttle plate pin are connected as one, and make the output signal of sensor can accurately reflect the aperture position of closure valve block.
5, position transducer and tb are fixed by clip connected.Easy for installation, reliable and reduce the machining of body.
The accompanying drawing explanation
Fig. 1 is plan view of the present invention
Fig. 2 is interior views of the present invention
Fig. 3 is gear face view of the present invention
Fig. 4 is the direct current generator scheme of installation
Fig. 5 is the torsion spring scheme of installation
Fig. 6 is the throttle plate pin scheme of installation
Fig. 7 is the position transducer scheme of installation
Fig. 8 is three hole pressure plate structure schematic diagram
Fig. 9 is the torsion spring plan view
Figure 10 is the torsion spring left view
In figure, the 1-throttle body, the 2-throttle plate pin, the 3-throttle blade, the 4-position transducer, the 5-direct current generator, 6-tri-hole pressing plates, the 7-motor gear, the 8-torsion spring, the 9-clip, the 10-intermediate gear, the 11-tooth sector, 12-tooth sector positive stop A, 13-body positive stop B, 14-body positive stop A, 15-tooth sector positive stop B, the left torsion spring of 16-, the 17-bearing, the right torsion spring of 18-, the 19-middle end, the 20-wave washer, the spacing leg of 21-, the flat slot type elastic washer of 22-, 23-body position-limit mechanism A, 24-tooth sector position-limit mechanism, the left torsion spring leg of 25-, the right torsion spring leg of 26-, 27-middle end leg, 28-body position-limit mechanism B.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described, and protection scope of the present invention is not limited to the following stated.
As shown in Figure 1, Figure 2, shown in Fig. 3, Fig. 4, Fig. 5 and Figure 10, electronic air throttle body, comprise, tb 1, be arranged on the throttle plate pin 2 on tb 1 through bearing 17, be arranged on the throttle blade 3 on throttle plate pin 2, the position transducer 4 be connected with throttle plate pin 2, be arranged on the direct current generator 5 on tb 1, on described throttle plate pin 2, tooth sector 11 is installed, described tooth sector 11 and intermediate gear 10 engagements that are arranged on tb 1, described intermediate gear 10 and motor gear 7 engagements that are arranged on direct current generator 5;
Be provided with body positive stop B13, body positive stop A14, body position-limit mechanism A23, body position-limit mechanism B28 on tb 1, be provided with tooth sector positive stop A12, tooth sector positive stop B15, tooth sector position-limit mechanism 24 on tooth sector 11, when tooth sector 11 reversions, when tooth sector positive stop A12 arrives to body positive stop A14, throttle plate pin 2 is positioned at fully open position, when tooth sector 11 forwards, when tooth sector positive stop B15 arrives on body positive stop B13, throttle plate pin 2 is positioned at low idle position;
As shown in Fig. 5, Fig. 9 and Figure 10, the rotation direction of described left torsion spring 16 is contrary with the rotation direction of right torsion spring 18, the central diameter of left torsion spring 16 is greater than the central diameter of right torsion spring 18, be provided with left torsion spring leg 25 on left torsion spring 16, be provided with right torsion spring leg 26 on right torsion spring 18, be provided with middle end leg 27 on middle end 19;
Left torsion spring leg 25 contacts with body position-limit mechanism A23, and right torsion spring leg 26 contacts with tooth sector position-limit mechanism 24, and middle end leg 27 contacts with body position-limit mechanism B28 with tooth sector position-limit mechanism 24.
As shown in Figure 4 and Figure 8, described direct current generator 5 is arranged on tb 1 by wave washer 20 and three hole pressing plates 6, wave washer 20 is installed on the ear end face of direct current generator 5, three hole pressing plates 6 are fixed on tb 1, and be socketed on the front-end face of direct current generator 5, motor gear 7 stretches out from the center hole of three hole pressing plates 6, is provided with spacing leg 21 on three hole pressing plates 6.
As shown in Figure 6, described throttle plate pin 2 adopts flat slot type elastic washer 22 to be connected with position transducer 4, forms drive fit.
As shown in Figure 7, described position transducer 4 is connected and fixed by clip 9 with body 1.
Working principle of the present invention is as follows:
Throttle plate pin 2 can rotate in body 1 gas-entered passageway, in order to change the aperture of throttle blade 3.Under the barrier effect of the twisting force of torsion spring 8 and body position-limit mechanism B28, closure valve block 3 remains on the high idle speed state in nature.Direct current generator 5, by gear transmission mechanism (motor gear 7 and intermediate gear 10 engagements, intermediate gear 10 and tooth sector 11 engagements), drives throttle plate pin 2 and rotates, thereby controls the aperture of throttle blade 3.Throttle blade 3 forward maximums can be to the desired full-gear of system, and under the stopping of body positive stop A14 forward again.When direct current generator 2 breaks down and causes working, throttle blade 3 can automatically restore to the high idle speed position under the twisting force of torsion spring 8.Throttle blade 3 reversion maximums can, to full close position, can not reversed under the stopping of body positive stop B13 again.When direct current generator breaks down and causes working, the closure valve block can automatically restore to the high idle speed position under the twisting force of torsion spring 8.In the effect of torsion spring, make the closure valve block when driving without motor in the high idle speed state, when torsion spring lost efficacy, another torsion spring still can be controlled throttle blade and be reset to the high idle speed position, increases the Security of engine system.
Claims (5)
1. electronic air throttle body, it comprises tb (1), be arranged on the throttle plate pin (2) on tb (1) through bearing (17), be arranged on the throttle blade (3) on throttle plate pin (2), the position transducer (4) be connected with throttle plate pin (2), be arranged on the direct current generator (5) on tb (1), tooth sector (11) is installed on described throttle plate pin (2), tooth sector (11) and intermediate gear (10) engagement be arranged on tb (1), intermediate gear (10) and motor gear (7) engagement be arranged on direct current generator (5), it is characterized in that: be provided with body positive stop B(13 on tb (1)), body positive stop A(14), body position-limit mechanism A(23), body position-limit mechanism B(28), be provided with tooth sector positive stop A(12 on tooth sector (11)), tooth sector positive stop B(15), tooth sector position-limit mechanism (24), tooth sector positive stop A(12) with body positive stop A(14) contact, throttle plate pin (2) is in fully open position, tooth sector positive stop B(15) with body positive stop B(13) contact, throttle plate pin (2) is in low idle position,
Torsion spring (8) is connected to form by middle end (19) by left torsion spring (16) and right torsion spring (18), left torsion spring (16) is fixed on tb (1), right torsion spring (18) is fixed on tooth sector (11), middle end (19) and tooth sector position-limit mechanism (24) and body position-limit mechanism A(23) contact, throttle plate pin (2) is in the high idle speed position.
2. electronic air throttle body according to claim 1, it is characterized in that, the rotation direction of described left torsion spring (16) is contrary with the rotation direction of right torsion spring (18), the central diameter of left torsion spring (16) is greater than the central diameter of right torsion spring (18), be provided with left torsion spring leg (25) on left torsion spring (16), be provided with right torsion spring leg (26) on right torsion spring (18), be provided with middle end leg (27) on middle end (19);
Left torsion spring leg (25) and body position-limit mechanism A(23) contact, right torsion spring leg (26) contacts with tooth sector position-limit mechanism (24), middle end leg (27) and tooth sector position-limit mechanism (24) and body position-limit mechanism B(28) contact.
3. electronic air throttle body according to claim 1, it is characterized in that, described direct current generator (5) is arranged on tb (1) by wave washer (20) and three hole pressing plates (6), wave washer (20) is installed on the ear end face of direct current generator (5), three hole pressing plates (6) are fixed on tb (1), and be socketed on the front-end face of direct current generator (5), motor gear (7) stretches out from the center hole of three hole pressing plates (6), on three hole pressing plates (6), is provided with spacing leg (21).
4. electronic air throttle body according to claim 1, is characterized in that, described throttle plate pin (2) adopts flat slot type elastic washer (22) to be connected with position transducer (4), forms drive fit.
5. electronic air throttle body according to claim 1, is characterized in that, described position transducer (4) is connected and fixed by clip (9) with body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110306872.7A CN102392742B (en) | 2011-10-12 | 2011-10-12 | Electronic throttle body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110306872.7A CN102392742B (en) | 2011-10-12 | 2011-10-12 | Electronic throttle body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102392742A CN102392742A (en) | 2012-03-28 |
| CN102392742B true CN102392742B (en) | 2013-12-18 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110306872.7A Expired - Fee Related CN102392742B (en) | 2011-10-12 | 2011-10-12 | Electronic throttle body |
Country Status (1)
| Country | Link |
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| CN (1) | CN102392742B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103590908A (en) * | 2012-08-15 | 2014-02-19 | 李嘉军 | Electronic throttle assembly for Mazda cars |
| KR101327038B1 (en) * | 2013-06-03 | 2013-11-07 | 주식회사 현대케피코 | Electronic throttle assembly |
| CN104632422A (en) * | 2014-12-25 | 2015-05-20 | 四川红光汽车机电有限公司 | Sensor magnetic core and throttle valve shaft integration bidirectional limiting electronic throttle valve body |
| CN107023406B (en) * | 2017-06-06 | 2023-06-27 | 四川红光汽车机电有限公司 | Novel electronic throttle body with high and low idle speed position limiting function |
| CN107461229A (en) * | 2017-10-10 | 2017-12-12 | 四川红光汽车机电有限公司 | The electronic air throttle body that a kind of new fan gear is connected with throttle plate pin |
| CN108571386B (en) * | 2018-05-28 | 2024-07-09 | 重庆渝辉机械有限公司 | High-precision electronic throttle valve |
| WO2021003606A1 (en) * | 2019-07-05 | 2021-01-14 | 华益机电有限公司 | Throttle for electronic fuel injection |
| CN110529262B (en) * | 2019-10-10 | 2024-06-14 | 四川红光汽车机电有限公司 | Electronic throttle body with high idle speed position limiting structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19622141A1 (en) * | 1996-06-01 | 1997-12-04 | Mannesmann Vdo Ag | Load adjustment device |
| EP1101919A2 (en) * | 1999-11-19 | 2001-05-23 | Eaton Corporation | Worm driving a servo actuator with spring return and rotary valve employing same |
| CN201292887Y (en) * | 2008-12-01 | 2009-08-19 | 四川红光汽车机电有限公司 | Electric injection air throttle body |
| CN101520004A (en) * | 2009-04-01 | 2009-09-02 | 四川红光汽车机电有限公司 | Electronic air throttle body for non-contact sensor |
| CN201474782U (en) * | 2009-09-01 | 2010-05-19 | 常州士林电机有限公司 | Electronic throttle valve structure |
| CN101915168A (en) * | 2010-08-06 | 2010-12-15 | 四川红光汽车机电有限公司 | Improved electronic throttle body |
-
2011
- 2011-10-12 CN CN201110306872.7A patent/CN102392742B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19622141A1 (en) * | 1996-06-01 | 1997-12-04 | Mannesmann Vdo Ag | Load adjustment device |
| EP1101919A2 (en) * | 1999-11-19 | 2001-05-23 | Eaton Corporation | Worm driving a servo actuator with spring return and rotary valve employing same |
| CN201292887Y (en) * | 2008-12-01 | 2009-08-19 | 四川红光汽车机电有限公司 | Electric injection air throttle body |
| CN101520004A (en) * | 2009-04-01 | 2009-09-02 | 四川红光汽车机电有限公司 | Electronic air throttle body for non-contact sensor |
| CN201474782U (en) * | 2009-09-01 | 2010-05-19 | 常州士林电机有限公司 | Electronic throttle valve structure |
| CN101915168A (en) * | 2010-08-06 | 2010-12-15 | 四川红光汽车机电有限公司 | Improved electronic throttle body |
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| Publication number | Publication date |
|---|---|
| CN102392742A (en) | 2012-03-28 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20131218 Termination date: 20211012 |