CN102392742A - Electronic throttle body - Google Patents
Electronic throttle body Download PDFInfo
- Publication number
- CN102392742A CN102392742A CN2011103068727A CN201110306872A CN102392742A CN 102392742 A CN102392742 A CN 102392742A CN 2011103068727 A CN2011103068727 A CN 2011103068727A CN 201110306872 A CN201110306872 A CN 201110306872A CN 102392742 A CN102392742 A CN 102392742A
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- Prior art keywords
- torsion spring
- tooth sector
- throttle
- positive stop
- plate pin
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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 traditional mechanical throttle body gradually.Electronic throttle is used to set up control system of electronic throttle valve, and this system can realize the FR best torque output of motor, and accurate control throttle opening improves the engine emission performance.All include two non-touching Returnning springs in the 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.If but one of them spring damages, just throttle blade can't reset.In vehicle traveling process,, cause take charge probably, occurrence of traffic accident if Returnning spring lost efficacy.
Summary of the invention
The object of the invention promptly is to overcome the deficiency of existing technology, and a kind of safe electronic throttle is provided.
The object of the invention is realized through following technological scheme:
Electronic air throttle body comprises, tb; Be installed in the throttle plate pin on the tb, be installed in the throttle blade on the throttle plate pin, the position transducer that is connected with throttle plate pin; Be installed in the direct current generator on the tb; On the said throttle plate pin tooth sector is installed, said tooth sector and the intermediate gear engagement that is installed on the tb, said intermediate gear and the motor gear engagement that is installed on the direct current generator;
Tb is provided with body positive stop B, body positive stop A, body position-limit mechanism A, body position-limit mechanism B; Tooth sector is provided with tooth sector positive stop A, tooth sector positive stop B, tooth sector position-limit mechanism, when the tooth sector counter-rotating, when tooth sector positive stop A arrives to body positive stop A; Throttle plate pin is positioned at fully open position; When tooth sector just changes, tooth sector positive stop B arrives to body positive stop B when going up, and throttle plate pin is positioned at low idle position;
Torsion spring is connected to form through middle end by left torsion spring and right torsion spring; Left side torsion spring is fixed on the tb; Right torsion spring is fixed on the tooth sector, and middle end contacts with the body position-limit mechanism with fan-shaped position-limit mechanism, and the torsion of torsion spring 8 makes throttle plate pin 2 be positioned at the high idle speed position under nature.
The rotation direction of said left torsion spring is opposite with the rotation direction of right torsion spring, and the middle footpath of left torsion spring is greater than the middle footpath of right torsion spring, and left torsion spring is provided with left torsion spring leg, and right torsion spring is provided with right torsion spring leg, and middle end is provided with the middle end leg;
Left side 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 limit structure B with the tooth sector limit structure.
Said direct current generator is installed on the tb through 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 the 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, and three hole pressing plates are provided with spacing leg.
Said 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 through clip connected.
Can find out that according to top narration advantage of the present invention is:
Torsion spring by about two opposite torsion springs of rotation direction form, 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 opposite torsion springs of rotation direction can be reduced to resonance, improves the torsion spring life-span.
2. three hole pressing plates are provided with spacing leg, can prevent misloading.
3. between direct current generator and tb wave washer is installed, can plays effective damping effect, solved and caused problems such as straight stream motor contact is unreliable, fatigue fracture because of 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 signal of sensor can accurately reflect the aperture position of closure valve block.
5, position transducer and tb are fixed through clip connected.Easy for installation, reliable and reduce the machining of body.
Description of drawings
Fig. 1 is a plan view of the present invention
Fig. 2 is an interior views of the present invention
Fig. 3 is a 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 representation
Fig. 9 is the torsion spring plan view
Figure 10 is the torsion spring left view
Among the figure, 1-throttle body, 2-throttle plate pin, 3-throttle blade, 4-position transducer, 5-direct current generator; 6-three hole pressing plates, 7-motor gear, 8-torsion spring, 9-clip, 10-intermediate gear, 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, 16-left side torsion spring, 17-bearing; The right torsion spring of 18-, 19-middle end, 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, 25-left side torsion spring leg, 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 present invention is described further, protection scope of the present invention is not limited to the following stated.
Like Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5 and shown in Figure 10, electronic air throttle body comprises; Tb 1; Be installed in the throttle plate pin 2 on the tb 1 through bearing 17, be installed in the throttle blade 3 on the throttle plate pin 2, the position transducer 4 that is connected with throttle plate pin 2; Be installed in the direct current generator 5 on the tb 1; On the said throttle plate pin 2 tooth sector 11 is installed, said tooth sector 11 and intermediate gear 10 engagements that are installed on the tb 1, said intermediate gear 10 and motor gear 7 engagements that are installed on the direct current generator 5;
Torsion spring 8 is connected to form through middle end 19 with right torsion spring 18 by left torsion spring 16; Left side torsion spring 16 is fixed on the tb 1; Right torsion spring 18 is fixed on the tooth sector 11; Middle end 19 contacts with body position-limit mechanism A23 with fan-shaped position-limit mechanism 24, and the torsion of torsion spring 8 makes throttle plate pin 2 be positioned at the high idle speed position under nature.
Like Fig. 5, Fig. 9 and shown in Figure 10; The rotation direction of the rotation direction of said left torsion spring 16 and right torsion spring 18 is opposite; The middle footpath of left side torsion spring 16 is greater than the middle footpath of right torsion spring 18; Left side torsion spring 16 is provided with left torsion spring leg 25, and right torsion spring 18 is provided with right torsion spring leg 26, and middle end 19 is provided with middle end leg 27;
Left side 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 limit structure B28 with tooth sector limit structure 24.
Like Fig. 4 and shown in Figure 8; Said direct current generator 5 is installed on the tb 1 through wave washer 20 and three hole pressing plates 6; Wave washer 20 is installed on the ear end face of direct current generator 5, and three hole pressing plates 6 are fixed on the tb 1, and is 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, and three hole pressing plates 6 are provided with spacing leg 21.
As shown in Figure 6, said 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 fixing with body 1 through clip 9.
Working principle of the present invention is following:
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 drives throttle plate pin 2 and rotates through gear transmission mechanism (motor gear 7 and intermediate gear 10 engagements, intermediate gear 10 and tooth sector 11 engagements), thus the aperture of control throttle blade 3.Throttle blade 3 is just being changeed maximum can be to the desired full-gear of system, and under the stopping of body positive stop A14, can not just change again.Break down when direct current generator 2 and cause can't proper functioning the time, throttle blade 3 can automatically restore to the high idle speed position under the twisting force of torsion spring 8.Throttle blade 3 counter-rotating maximums can not reversed under the stopping of body positive stop B13 to full close position again.Break down when direct current generator and cause can't proper functioning the time, 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 no motor driving, be in the high idle speed state, when a torsion spring lost efficacy, another torsion spring still can be controlled throttle blade and be reset to the high idle speed position, increased the Security of engine system.
Claims (5)
1. electronic air throttle body; It comprises tb (1); Be installed in the throttle plate pin (2) on the tb (1) through bearing (17), be installed in the throttle blade (3) on the throttle plate pin (2), the position transducer (4) that is connected with throttle plate pin (2); Be installed in the direct current generator (5) on the tb (1); It is characterized in that: tooth sector (11) is installed, tooth sector (11) and intermediate gear (10) engagement that is installed on the tb (1), intermediate gear (10) and motor gear (7) engagement that is installed on the direct current generator (5) on the said throttle plate pin (2);
Tb (1) is provided with body positive stop B (13), body positive stop A (14), body position-limit mechanism A (23), body position-limit mechanism B (28); Tooth sector (11) is provided with tooth sector positive stop A (12), tooth sector positive stop B (15), tooth sector position-limit mechanism (24); Tooth sector positive stop A (12) contacts with body positive stop A (14); Throttle plate pin (2) is in fully open position; Tooth sector positive stop B (15) contacts with body positive stop B (13), and throttle plate pin (2) is in low idle position;
Torsion spring (8) is connected to form through middle end (19) by left torsion spring (16) and right torsion spring (18); Left side torsion spring (16) is fixed on the tb (1); Right torsion spring (18) is fixed on the tooth sector (11); Middle end (19) contacts with body position-limit mechanism A (23) with fan-shaped position-limit mechanism (24), and 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 the rotation direction of said left torsion spring (16) and right torsion spring (18) is opposite, and the middle footpath of left torsion spring (16) is greater than the middle footpath of right torsion spring (18), and left torsion spring (16) is provided with left torsion spring leg (25); Right torsion spring (18) is provided with right torsion spring leg (26), and middle end (19) is provided with middle end leg (27);
Left side torsion spring leg (25) contacts with body position-limit mechanism A (23), and right torsion spring leg (26) contacts with tooth sector position-limit mechanism (24), and middle end leg (27) contacts with body limit structure B (28) with tooth sector limit structure (24).
3. electronic air throttle body according to claim 1; It is characterized in that; Said direct current generator (5) is installed on the tb (1) through wave washer (20) and three hole pressing plates (6); Wave washer (20) is installed on the ear end face of direct current generator (5), and three hole pressing plates (6) are fixed on the tb (1), and are 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), and three hole pressing plates (6) are provided with spacing leg (21).
4. electronic air throttle body according to claim 1 is characterized in that, said 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 fixing with body (1) through clip (9).
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 true CN102392742A (en) | 2012-03-28 |
| CN102392742B 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 |
|---|---|
| CN (1) | CN102392742B (en) |
Cited By (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 |
| CN104379910A (en) * | 2013-06-03 | 2015-02-25 | 现代凯菲克株式会社 | Valve 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 |
| CN107023406A (en) * | 2017-06-06 | 2017-08-08 | 四川红光汽车机电有限公司 | A kind of spacing electronic air throttle body of new high and low idle position |
| 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 |
| CN108571386A (en) * | 2018-05-28 | 2018-09-25 | 重庆渝辉机械有限公司 | High-precision electronic air throttle |
| CN110529262A (en) * | 2019-10-10 | 2019-12-03 | 四川红光汽车机电有限公司 | A kind of electronic air throttle body with high idle position position limiting structure |
| WO2021003606A1 (en) * | 2019-07-05 | 2021-01-14 | 华益机电有限公司 | Throttle for electronic fuel injection |
Citations (6)
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| 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 |
Cited By (9)
| 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 |
| CN104379910A (en) * | 2013-06-03 | 2015-02-25 | 现代凯菲克株式会社 | Valve 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 |
| CN107023406A (en) * | 2017-06-06 | 2017-08-08 | 四川红光汽车机电有限公司 | A kind of spacing electronic air throttle body of new high and low idle position |
| 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 |
| CN108571386A (en) * | 2018-05-28 | 2018-09-25 | 重庆渝辉机械有限公司 | High-precision electronic air throttle |
| WO2021003606A1 (en) * | 2019-07-05 | 2021-01-14 | 华益机电有限公司 | Throttle for electronic fuel injection |
| CN110529262A (en) * | 2019-10-10 | 2019-12-03 | 四川红光汽车机电有限公司 | A kind of electronic air throttle body with high idle position position limiting structure |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102392742B (en) | 2013-12-18 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20211012 |
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| CF01 | Termination of patent right due to non-payment of annual fee |