CN109611219B - Reset mechanism for electronic throttle body - Google Patents
Reset mechanism for electronic throttle body Download PDFInfo
- Publication number
- CN109611219B CN109611219B CN201910034054.2A CN201910034054A CN109611219B CN 109611219 B CN109611219 B CN 109611219B CN 201910034054 A CN201910034054 A CN 201910034054A CN 109611219 B CN109611219 B CN 109611219B
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- China
- Prior art keywords
- spring seat
- supporting leg
- valve body
- gear
- reset
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02D—CONTROLLING COMBUSTION ENGINES
- F02D9/00—Controlling engines by throttling air or fuel-and-air induction conduits or exhaust conduits
- F02D9/08—Throttle valves specially adapted therefor; Arrangements of such valves in conduits
- F02D9/10—Throttle valves specially adapted therefor; Arrangements of such valves in conduits having pivotally-mounted flaps
- F02D9/1065—Mechanical control linkage between an actuator and the flap, e.g. including levers, gears, springs, clutches, limit stops of the like
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
A reset mechanism for an electronic throttle body. The throttle valve comprises a valve body, a throttle shaft, a reset gear, an upper spring seat, a lower spring seat and a reset spring; the reset gear is axially provided with a support leg which is provided with two side surfaces; the upper spring seat, the return spring and the lower spring seat are sleeved outside the return gear in sequence; the two ends of the return spring are respectively fixed on the upper spring seat and the lower spring seat; the upper spring seat has a leg surface corresponding to one side surface of the leg; the lower spring seat has a leg surface corresponding to the other side surface of the leg; the throttle shaft passes through the lower spring seat, the return spring and the upper spring seat and is then connected to the return gear; the valve body limiting block is arranged in the valve body and provided with a first side surface and a second side surface; in a default state, the supporting leg surface of the upper spring seat is attached to the first side surface of the valve body limiting block and one side surface of the supporting leg; the supporting leg surface of the lower spring seat is attached to the second side surface of the valve body limiting block and the other side surface of the supporting leg. The throttle valve is simple in structure, simple in manufacturing process and easy to control the accuracy of the default position of the throttle valve body.
Description
Technical Field
The invention relates to an electronic throttle body, in particular to a reset mechanism for the electronic throttle body.
Background
The prior art electronic throttle body of a vehicle is provided with a reset structure, and the structure is shown in fig. 1-5. As shown in the figure: the device consists of a throttle shaft 1, a reset gear 2, a coupling ring 3, an emergency reset spring 4 and a reset spring 5. Wherein: one torsion arm of the emergency return spring 4 is hung in the spring groove of the return gear 2, and the other torsion arm is hung in the spring groove of the coupling ring 3. The coupling ring 3 is mounted on the reset gear 2 by two hooks extending out. One torsion arm of the reset spring 5 is hung in a spring groove of the coupling ring 3, and the other torsion arm is hung on the valve body. The emergency return spring 4 and the return spring 5 are opposite in winding direction and generate opposite torsion, and the return spring 5 is used for returning the return gear 2 from any opened position to a default position. The limiting surface 8 of the coupling ring 3 is contacted with the limiting surface 9 of the reset gear 2, and the emergency reset spring 4 generates opposite torsion force to open the reset gear 2 from the default position to the throttle fully-closed position. In the default throttle position, the limiting surface 10 of the coupling ring is tightly attached to the limiting surface 7 of the valve body, and the limiting surfaces 8 and 9 are also tightly attached under the action of the emergency return spring.
The design of the reset mechanism solves the reset problem, so that the throttle body returns to the default position, but the consistency of products cannot be ensured, and because of the plurality of parts matched with each other, a plurality of matching errors can occur in the manufacturing process, so that the points of the reset mechanism returning to the default position are different. And the number of mutually matched parts is large, the friction force is increased, and the reaction speed of the product is also influenced.
Disclosure of Invention
The invention aims to provide a reset mechanism for an electronic throttle body, which mainly solves the technical problems that the prior reset mechanism for the electronic throttle body has a plurality of mutually matched parts, is heavy in manufacturing process, is easy to generate matching errors, is not accurate enough to return to a default position, has low reaction speed and the like, and has simple structure, simplified manufacturing process and easier control of the precision of the default position of the throttle body.
To achieve the above object, the present invention is achieved by:
a reset mechanism for an electronic throttle body comprises a valve body, a throttle shaft and a reset gear; the method is characterized in that: the spring seat also comprises an upper spring seat, a lower spring seat and a return spring; the reset gear is axially provided with a support leg which is provided with two side surfaces; the upper spring seat, the return spring and the lower spring seat are sleeved outside the return gear in sequence; one torsion arm of the return spring is fixed on the upper spring seat, and the other torsion arm is fixed on the lower spring seat; the upper spring seat is provided with an upper spring seat supporting leg surface, and the upper spring seat supporting leg surface corresponds to one side surface of the supporting leg; the lower spring seat is provided with a lower spring seat supporting leg surface, and the lower spring seat supporting leg surface corresponds to the other side surface of the supporting leg; the throttle shaft passes through the lower spring seat, the return spring and the upper spring seat and is then connected to the return gear; the valve body is internally provided with a valve body limiting block which is provided with a first side surface and a second side surface; in a default state, the supporting leg surface of the upper spring seat is attached to the first side surface of the valve body limiting block and one side surface of the supporting leg of the reset gear; the supporting leg surface of the lower spring seat is attached to the second side surface of the valve body limiting block and the other side surface of the supporting leg of the reset gear.
The reset mechanism for the electronic throttle body is characterized in that: the reset gear consists of a gear part and a rotating part connected below the gear part; the outer axial direction of the rotating part is provided with a supporting leg which is provided with two side surfaces; the upper spring seat, the return spring and the lower spring seat are sequentially sleeved outside the rotating part of the return gear.
The reset mechanism for the electronic throttle body is characterized in that: one torsion arm of the return spring is hung in the groove of the upper spring seat to be fixed, and the other torsion arm is hung in the groove of the lower spring seat to be fixed.
The invention has the technical effects that: compared with the prior art, the emergency reset mechanism is designed by using only one spring, so that the mechanism for keeping the throttle blade at the emergency point position after power failure is ensured, the throttle blade can rotate clockwise and anticlockwise against the force of the torsion spring, and the torsion spring ensures that the force applied to the reset gear to return to the emergency point position in the two directions. The structure omits the original coupling ring and the emergency spring, reduces the uncertainty of intermediate connection, and also reduces the friction force when the coupling ring rotates.
Drawings
Fig. 1 is a schematic diagram of a reset mechanism for an electronic throttle body in the prior art.
Fig. 2 is a schematic diagram of a reset mechanism for an electronic throttle body in the prior art.
Fig. 3 is a schematic structural view of a reset gear limiting surface in the prior art.
Fig. 4 is a schematic structural view of a prior art coupling ring limiting surface.
Fig. 5 is a schematic diagram of a structure of matching a limiting surface of a coupling ring with a limiting surface of a valve body in the prior art.
Fig. 6 is a schematic structural view of a return mechanism for an electronic throttle body (excluding a valve body) according to the present invention.
Fig. 7 is a schematic view of the structure of the return gear and the upper and lower spring seats in the present invention.
Fig. 8 is a schematic diagram of the use structure of the present invention.
Detailed Description
Referring to fig. 6, 7 and 8, the invention discloses a reset mechanism for an electronic throttle body. As shown in the figure: it includes a valve body 19, a throttle shaft 20, a return gear 21, an upper spring seat 11, a lower spring seat 13, and a return spring 12. The reset gear 21 is composed of a gear portion 211 and a rotating portion 212 connected below the gear portion 211; the rotating portion 212 is axially provided with a leg 14, the leg 14 having two sides. The upper spring seat 11, the return spring 12, and the lower spring seat 13 are sequentially sleeved outside the rotating portion 212 of the return gear 21, wherein: one torsion arm of the return spring 12 is fixed on the upper spring seat 11, and the other torsion arm is fixed on the lower spring seat 13. The upper spring seat 11 has an upper spring seat leg surface 16, the upper spring seat leg surface 16 corresponding to one side surface of the leg 14; the lower spring seat 13 has a lower spring seat leg surface 15, and the lower spring seat leg surface 15 corresponds to the other side surface of the leg 14. The throttle shaft 20 sequentially passes through the lower spring seat 13, the return spring 12 and the upper spring seat 11 from bottom to top and then is connected to the return gear 21 (welding can be adopted, and the default opening angle of the valve plate can be obtained by rotating the throttle shaft 20 during welding). The structure is arranged in the valve body 19, the valve body 19 is internally provided with a valve body limiting block, and the valve body limiting block is provided with a first side face 17 and a second side face 18; in a default state, the upper spring seat supporting leg surface 16 is attached to the first side surface 17 of the valve body limiting block and one side surface of the supporting leg 14 of the reset gear 21; the lower spring seat support leg surface 15 is attached to the second side surface 18 of the valve body limiting block and the other side surface of the support leg 14 of the reset gear 21.
When the reset gear 21 rotates along with the axial closing direction, the upper spring seat support leg surface 16 can be instantaneously separated from the support leg 14 of the reset gear 21, and meanwhile, the lower spring seat support leg surface 15 is instantaneously separated from the second side surface 18 of the valve body limiting block, and the reset is performed through the spring restoring force after the closing action is completed. Conversely, if the reset gear 21 rotates along with the axial opening direction, the lower spring seat leg surface 15 will be instantaneously separated from the leg 14 of the reset gear 21, and at the same time, the upper spring seat leg surface 16 will also be instantaneously separated from the first side 17 of the valve body limiting block, and after the opening action is completed, the valve body limiting block is reset by the spring restoring force.
In the invention, one torsion arm of the return spring 12 is hung in the groove 21 of the upper spring seat 11, and the other torsion arm is hung in the groove 22 of the lower spring seat 13.
In the present invention, the rotating portion 212 may be provided with a leg 14 in an outer axial direction, the leg 14 having two sides. It is also possible that 212 the outer shaft may be provided with two legs each having an outward facing side.
In the present invention, the valve body 19 has a valve body stopper therein, which has a first side 17 and a second side 18. Two valve body limiting blocks can also be respectively provided with an outward side surface.
The foregoing description is only of the preferred embodiments of the invention and is not intended to limit the scope of the invention. Equivalent changes and modifications are intended to be within the scope of the present invention as defined in the appended claims.
Claims (3)
1. A reset mechanism for an electronic throttle body comprises a valve body, a throttle shaft and a reset gear; the method is characterized in that: the spring seat also comprises an upper spring seat, a lower spring seat and a return spring; the reset gear is axially provided with a support leg which is provided with two side surfaces; the upper spring seat, the return spring and the lower spring seat are sleeved outside the return gear in sequence; one torsion arm of the return spring is fixed on the upper spring seat, and the other torsion arm is fixed on the lower spring seat; the upper spring seat is provided with an upper spring seat supporting leg surface, and the upper spring seat supporting leg surface corresponds to one side surface of the supporting leg; the lower spring seat is provided with a lower spring seat supporting leg surface, and the lower spring seat supporting leg surface corresponds to the other side surface of the supporting leg; the throttle shaft passes through the lower spring seat, the return spring and the upper spring seat and is then connected to the return gear; the valve body is internally provided with a valve body limiting block which is provided with a first side surface and a second side surface; in a default state, the supporting leg surface of the upper spring seat is attached to the first side surface of the valve body limiting block and one side surface of the supporting leg of the reset gear; the supporting leg surface of the lower spring seat is attached to the second side surface of the valve body limiting block and the other side surface of the supporting leg of the reset gear;
when the valve body limiting block is used, if the reset gear rotates along with the axial closing direction, the upper spring seat supporting leg surface can be instantaneously separated from the supporting leg of the reset gear, and meanwhile, the lower spring seat supporting leg surface is instantaneously separated from the second side surface of the valve body limiting block, and after the closing action is finished, the valve body limiting block is reset through the restoring force of the spring; on the contrary, if the reset gear rotates along with the axial opening direction, the lower spring seat support leg surface can be instantaneously separated from the support leg of the reset gear, and meanwhile, the upper spring seat support leg surface is instantaneously separated from the first side surface of the valve body limiting block, and after the opening action is finished, the reset gear is reset through the spring restoring force.
2. The return mechanism for an electronic throttle body according to claim 1, wherein: the reset gear consists of a gear part and a rotating part connected below the gear part; the outer axial direction of the rotating part is provided with a supporting leg which is provided with two side surfaces; the upper spring seat, the return spring and the lower spring seat are sequentially sleeved outside the rotating part of the return gear.
3. The return mechanism for an electronic throttle body according to claim 1 or 2, characterized in that: one torsion arm of the return spring is hung in the groove of the upper spring seat to be fixed, and the other torsion arm is hung in the groove of the lower spring seat to be fixed.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910034054.2A CN109611219B (en) | 2019-01-15 | 2019-01-15 | Reset mechanism for electronic throttle body |
| CA3125906A CA3125906C (en) | 2019-01-15 | 2020-01-13 | Reset mechanism for electronic throttle body |
| EP20741995.3A EP3913202A4 (en) | 2019-01-15 | 2020-01-13 | Reset mechanism for electronic throttle body |
| PCT/CN2020/071800 WO2020147685A1 (en) | 2019-01-15 | 2020-01-13 | Reset mechanism for electronic throttle body |
| US17/373,654 US11293356B2 (en) | 2019-01-15 | 2021-07-12 | Reset mechanism for electronic throttle body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910034054.2A CN109611219B (en) | 2019-01-15 | 2019-01-15 | Reset mechanism for electronic throttle body |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109611219A CN109611219A (en) | 2019-04-12 |
| CN109611219B true CN109611219B (en) | 2023-12-15 |
Family
ID=66018788
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910034054.2A Active CN109611219B (en) | 2019-01-15 | 2019-01-15 | Reset mechanism for electronic throttle body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109611219B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP3913202A4 (en) * | 2019-01-15 | 2022-03-16 | Shanghai Auzone Auto Parts Manufacturing Co., Ltd | Reset mechanism for electronic throttle body |
| CN111042930A (en) * | 2019-12-12 | 2020-04-21 | 上海奥众汽车部件制造有限公司 | A reset mechanism for electronic throttle body |
| CN111237063A (en) * | 2020-01-14 | 2020-06-05 | 上海奥众汽车部件制造有限公司 | Reset mechanism for electronic throttle valve body |
| CN114893307A (en) * | 2022-05-12 | 2022-08-12 | 安徽奥众汽车部件有限公司 | Electronic throttle valve body of brushless direct current motor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6263898B1 (en) * | 1999-08-06 | 2001-07-24 | Siemens Canada Limited | Throttle shaft with return spring and spring cover and method of assembling the same |
| US6364287B1 (en) * | 2000-08-07 | 2002-04-02 | Visteon Global Technologies, Inc. | Electronic throttle return spring assembly |
| CN102562325A (en) * | 2011-11-21 | 2012-07-11 | 上海奥众汽车部件制造有限公司 | Electronic throttle valve body of diesel engine |
| CN102619627A (en) * | 2011-01-28 | 2012-08-01 | 上海奥众汽车部件制造有限公司 | Plastic throttle body |
| CN203189126U (en) * | 2013-04-10 | 2013-09-11 | 联合汽车电子有限公司 | Electronic throttle body and reset gear |
| CN209654130U (en) * | 2019-01-15 | 2019-11-19 | 上海奥众汽车部件制造有限公司 | A kind of electronic air throttle body resetting-mechanism |
-
2019
- 2019-01-15 CN CN201910034054.2A patent/CN109611219B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6263898B1 (en) * | 1999-08-06 | 2001-07-24 | Siemens Canada Limited | Throttle shaft with return spring and spring cover and method of assembling the same |
| US6364287B1 (en) * | 2000-08-07 | 2002-04-02 | Visteon Global Technologies, Inc. | Electronic throttle return spring assembly |
| CN102619627A (en) * | 2011-01-28 | 2012-08-01 | 上海奥众汽车部件制造有限公司 | Plastic throttle body |
| CN102562325A (en) * | 2011-11-21 | 2012-07-11 | 上海奥众汽车部件制造有限公司 | Electronic throttle valve body of diesel engine |
| CN203189126U (en) * | 2013-04-10 | 2013-09-11 | 联合汽车电子有限公司 | Electronic throttle body and reset gear |
| CN209654130U (en) * | 2019-01-15 | 2019-11-19 | 上海奥众汽车部件制造有限公司 | A kind of electronic air throttle body resetting-mechanism |
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| Publication number | Publication date |
|---|---|
| CN109611219A (en) | 2019-04-12 |
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Effective date of registration: 20231228 Address after: 239065 No. 315, Zhongxin Avenue, Zhongxin Suchu high tech Industrial Development Zone, Chuzhou City, Anhui Province Patentee after: Anhui AOZHONG Auto Parts Co.,Ltd. Address before: No. 348 Yuanyuan Road, Anting Town, Jiading District, Shanghai, May 2018 Patentee before: SHANGHAI AUZONE AUTO PARTS MANUFACTURING Co.,Ltd. |