CN107023406B - Novel electronic throttle body with high and low idle speed position limiting function - Google Patents

Novel electronic throttle body with high and low idle speed position limiting function Download PDF

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Publication number
CN107023406B
CN107023406B CN201710419908.XA CN201710419908A CN107023406B CN 107023406 B CN107023406 B CN 107023406B CN 201710419908 A CN201710419908 A CN 201710419908A CN 107023406 B CN107023406 B CN 107023406B
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China
Prior art keywords
throttle
gear
support leg
throttle body
torsion spring
Prior art date
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Application number
CN201710419908.XA
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Chinese (zh)
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CN107023406A (en
Inventor
万里军
刘军
王国荣
欧冬华
张伟
陈新梅
秦峰
李勇
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Sichuan Hongguang Auto Machinery Electric Co Ltd
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Sichuan Hongguang Auto Machinery Electric Co Ltd
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Application filed by Sichuan Hongguang Auto Machinery Electric Co Ltd filed Critical Sichuan Hongguang Auto Machinery Electric Co Ltd
Priority to CN201710419908.XA priority Critical patent/CN107023406B/en
Publication of CN107023406A publication Critical patent/CN107023406A/en
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    • 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
    • F02D9/107—Manufacturing or mounting details
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02D—CONTROLLING COMBUSTION ENGINES
    • F02D11/00—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated
    • F02D11/06—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance
    • F02D11/10—Arrangements for, or adaptations to, non-automatic engine control initiation means, e.g. operator initiated characterised by non-mechanical control linkages, e.g. fluid control linkages or by control linkages with power drive or assistance of the electric type
    • 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
    • F02D9/1035—Details of the valve housing
    • F02D9/105—Details of the valve housing having a throttle position sensor
    • 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
    • F02D9/1035—Details of the valve housing
    • F02D9/106—Sealing of the valve shaft in the housing, e.g. details of the bearings
    • 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
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00—Road transport of goods or passengers
    • Y02T10/10—Internal combustion engine [ICE] based vehicles
    • Y02T10/40—Engine management systems

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)

Abstract

The invention discloses a novel electronic throttle body with high and low idle speed position limit, which comprises a throttle body, a throttle shaft, a throttle blade and a position sensor, wherein the position sensor is arranged at the left lower corner of the outer surface of the throttle body, the throttle shaft is arranged in the throttle body and is covered by the throttle blade, a direct current motor is arranged at the lower part of the inside of the throttle body, a motor gear, an intermediate gear and a sector gear are sequentially arranged in the throttle body from bottom to top, the motor gear is arranged on an output shaft of the direct current motor, the motor gear is meshed with the intermediate gear, the intermediate gear is meshed with the sector gear, a torsion spring is sleeved on the sector gear, a metal insert is embedded in the inside of the sector gear in an injection molding mode, and then the sector gear is welded at the left end part of the throttle shaft through the metal insert. The beneficial effects of the invention are as follows: compact structure, convenient installation, low manufacturing cost, high assemblability and reliability.

Description

Novel electronic throttle body with high and low idle speed position limiting function
Technical Field
The invention relates to a novel electronic throttle body with high and low idle speed position limiting.
Background
With the development of automobile technology, intelligent automobile control such as traction control, cruise control and idle speed control has become standardized configuration of automobiles, and is favored by automobile manufacturers and customers. The Electronic Control Unit (ECU) of the engine can rapidly and accurately control the electronic throttle body, has the advantages of providing optimal power performance and fuel economy for the vehicle, improving the emission performance of the engine and the like, is more and more widely applied, and gradually replaces the traditional mechanical throttle body. In the current electronic throttle body, the limiting modes of the high idle speed position and the low idle speed position generally adopt the mode of an idle speed adjusting screw or a mechanical limiting structure, and have high requirements on the manufacturing precision of parts and large equipment investment. In the current electronic throttle body, in order to realize the positive and negative rotation return moment requirement of the electronic throttle body, most of the electronic throttle bodies respectively use two independent torsion springs or left-right rotation double torsion springs, and the electronic throttle body has the advantages of multiple parts, complex structure and difficult assembly. In the current electronic throttle body, most direct current motors use independent pressing plates, independent motor stators and independent bases, and the motors are installed and fixed through subsequent assembly, so that the electronic throttle body is multiple in parts, complex in structure, difficult to assemble and high in cost.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provide the novel high-idle-speed and low-idle-speed position limiting electronic throttle body which is compact in structure, convenient to install, low in manufacturing cost, high in assemblability and reliability.
The aim of the invention is achieved by the following technical scheme: the utility model provides a novel high, spacing electronic throttle body in low idle speed position, it includes throttle body, throttle shaft, throttle blade and position sensor, position sensor installs the lower left corner at the surface of throttle body, and the throttle shaft is installed in the inside of throttle body and is closed through the throttle blade lid, the lower part of the inside of throttle body install direct current motor, the inside of throttle body install motor gear, intermediate gear and sector gear from bottom to top in proper order, motor gear installs on direct current motor's output shaft, motor gear and intermediate gear meshing, intermediate gear and sector gear meshing, the cover is equipped with the torsional spring on the sector gear, the inside of sector gear is moulded plastics and is inlayed and have metal mold insert, then, the sector gear passes through metal mold insert laser welding at throttle shaft's left end.
Further, the left end of the throttle shaft is sleeved in a needle bearing, the right end of the throttle shaft is sleeved in a sliding bearing, and the needle bearing and the sliding bearing are respectively arranged at the designated positions of the left part and the right part of the throttle body.
Further, the sector gear is provided with a limit support leg A, and the throttle body is provided with a limit support leg B.
Further, the torsion spring include torsion spring left side stabilizer blade and torsion spring right side stabilizer blade, torsion spring left side stabilizer blade and torsion spring right side stabilizer blade are fixed on spacing stabilizer blade A's both sides face, simultaneously, torsion spring left side stabilizer blade and torsion spring right side stabilizer blade also block on spacing stabilizer blade B's both sides face.
Further, the position sensor is provided with a position signal sensing unit and a signal transmission unit.
The invention has the following advantages:
1. the novel high-idle-speed and low-idle-speed position limiting electronic throttle body has the characteristics of compact structure, convenience in installation and low manufacturing cost, the sector gear is installed on the throttle shaft through laser welding, the torsion spring is sleeved on the sector gear, two support legs of the torsion spring are fixed on two sides of a limiting support leg A of the sector gear, meanwhile, two support legs of the torsion spring are clamped on two sides of a limiting support leg B of the throttle body, when a direct current motor does not output power, the throttle plate is in a high-idle-speed position under the torsion action of the torsion spring, the high-idle-speed position fixing of the electronic throttle body is realized, the single torsion spring is used, the forward and reverse rotation return moment requirement of the electronic throttle body is realized, the parts are reduced, the assembly structure is simple and convenient, and the structure is compact, the installation is convenient, and the manufacturing cost is low.
2. The novel electronic throttle body with the limit at the high idle speed position and the low idle speed position has the characteristics of high assemblability and reliability, the metal insert is arranged in the sector gear, the metal insert and the throttle shaft are welded by laser, the throttle shaft is rotated, and the precise control of the matching angle of the metal insert and the throttle shaft can be realized by laser welding, so that the precise fixation of the low idle speed position of the electronic throttle body assembly is realized, and the assemblability and the reliability are high as a whole.
Drawings
FIG. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic top view of the present invention;
fig. 3 is a schematic structural view of a sector gear high idle speed limit support leg a;
FIG. 4 is a schematic view of the torsion spring high idle speed limit leg;
in the figure: the novel throttle valve comprises a throttle valve body, a throttle valve shaft 2, a throttle valve plate 3, a position sensor 4, a direct current motor 5, a needle bearing 6, a sliding bearing 7, a sector gear 9, a torsion spring 10, a metal insert 11, a motor gear 12, a middle gear 13, a clamp 14, a torsion spring left support leg 17, a torsion spring right support leg 18, a limit support leg A19, a limit support leg A20 left side surface and a limit support leg A right side surface 21.
Detailed Description
The present invention will be further described with reference to the accompanying drawings, but the scope of the present invention is not limited to the following.
As shown in fig. 1-4, the novel high-low idle speed position limiting electronic throttle body comprises a throttle body 1, a throttle shaft 2, a throttle blade 3 and a position sensor 4, wherein the position sensor 4 is arranged at the lower left corner of the outer surface of the throttle body 1, the throttle shaft 2 is arranged in the throttle body 1 and is covered by the throttle blade 3, a direct current motor 5 is arranged at the lower part of the interior of the throttle body 1, a motor gear 12, an intermediate gear 13 and a sector gear 9 are sequentially arranged in the throttle body 1 from bottom to top, the motor gear 12 is arranged on an output shaft of the direct current motor 5, the motor gear 12 is meshed with the intermediate gear 13, the intermediate gear 13 is meshed with the sector gear 9, a torsion spring 10 is sleeved on the sector gear 9, a metal insert 11 is embedded in the interior of the sector gear 9 in an injection molding mode, and then the sector gear 9 is welded at the left end part of the throttle shaft 2 through the metal insert 11 in a laser welding mode.
Further, as a preferred embodiment of the present invention, the left end of the throttle shaft 2 is sleeved in the needle bearing 6, the right end of the throttle shaft 2 is sleeved in the sliding bearing 7, and the needle bearing 6 and the sliding bearing 7 are respectively arranged at the designated positions of the left part and the right part of the throttle body 1; the fan-shaped gear 9 is provided with a limit support leg A19, and the throttle body 1 is provided with a limit support leg B; the torsion spring 10 comprises a torsion spring left support leg 17 and a torsion spring right support leg 18, wherein the torsion spring left support leg 17 and the torsion spring right support leg 18 are fixed on two side surfaces of a limit support leg A19, and meanwhile, the torsion spring left support leg 17 and the torsion spring right support leg 18 are also clamped on two side surfaces of a limit support leg B; the position sensor 4 is provided with a position signal sensing unit and a signal transmission unit.
The installation process and the working process of the invention are as follows: the components of the invention are installed according to the connection relation and the position relation shown in fig. 1-4, and the invention can be started to be used after the installation is completed. The direct current motor 5 is controlled, the direct current motor 5 drives the motor gear 12 and the intermediate gear 13, the intermediate gear 13 drives the sector gear 9 to move, and the sector gear 9 drives the throttle shaft 2 to rotate, so that the throttle valve is opened and closed. When the direct current motor 5 does not output power, the throttle blade 3 is in a high idle speed position under the torsion action of the torsion spring 10, so that the high idle speed position of the electronic throttle body is fixed, and the torsion spring 10 is used for realizing the forward and reverse rotation return moment requirement of the electronic throttle body.
The foregoing is merely a preferred embodiment of the invention, and it is to be understood that the invention is not limited to the form disclosed herein but is not to be construed as excluding other embodiments, but is capable of numerous other combinations, modifications and environments and is capable of modifications within the scope of the inventive concept, either as taught or as a matter of routine skill or knowledge in the relevant art. And that modifications and variations which do not depart from the spirit and scope of the invention are intended to be within the scope of the appended claims.

Claims (5)

1. Novel electronic throttle body with high and low idle speed position limit is characterized in that: the novel air throttle valve comprises a throttle valve body (1), a throttle valve shaft (2), a throttle valve piece (3) and a position sensor (4), wherein the position sensor (4) is arranged at the left lower corner of the outer surface of the throttle valve body (1), the throttle valve shaft (2) is arranged in the throttle valve body (1) and is covered by the throttle valve piece (3), a direct current motor (5) is arranged at the lower part of the inside of the throttle valve body (1), a motor gear (12), an intermediate gear (13) and a sector gear (9) are sequentially arranged in the throttle valve body (1) from bottom to top, the motor gear (12) is arranged on an output shaft of the direct current motor (5), the motor gear (12) is meshed with the intermediate gear (13), the intermediate gear (13) is meshed with the sector gear (9), a torsion spring (10) is sleeved on the sector gear (9), a metal insert (11) is embedded in the inside of the sector gear (9), and then the sector gear (9) is welded at the left end part of the throttle valve shaft (2) through laser welding of the metal insert (11).
2. The novel high and low idle position limiting electronic throttle body according to claim 1, wherein: the left end of the throttle shaft (2) is sleeved in the needle bearing (6), the right end of the throttle shaft (2) is sleeved in the sliding bearing (7), and the needle bearing (6) and the sliding bearing (7) are respectively arranged at the designated positions of the left part and the right part of the throttle body (1).
3. The novel high and low idle position limiting electronic throttle body according to claim 1, wherein: the fan-shaped gear (9) is provided with a limit support leg A (19), and the throttle body (1) is provided with a limit support leg B.
4. The novel high and low idle position limiting electronic throttle body according to claim 3, wherein: the torsion spring (10) comprises a torsion spring left support leg (17) and a torsion spring right support leg (18), wherein the torsion spring left support leg (17) and the torsion spring right support leg (18) are fixed on two side surfaces of a limit support leg A (19), and meanwhile, the torsion spring left support leg (17) and the torsion spring right support leg (18) are also clamped on two side surfaces of a limit support leg B.
5. The novel high and low idle position limiting electronic throttle body according to claim 1, wherein: the position sensor (4) is provided with a position signal sensing unit and a signal conveying unit.
CN201710419908.XA 2017-06-06 2017-06-06 Novel electronic throttle body with high and low idle speed position limiting function Active CN107023406B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710419908.XA CN107023406B (en) 2017-06-06 2017-06-06 Novel electronic throttle body with high and low idle speed position limiting function

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Application Number Priority Date Filing Date Title
CN201710419908.XA CN107023406B (en) 2017-06-06 2017-06-06 Novel electronic throttle body with high and low idle speed position limiting function

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CN107023406B true CN107023406B (en) 2023-06-27

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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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

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CN102392742A (en) * 2011-10-12 2012-03-28 四川红光汽车机电有限公司 Electronic throttle body
CN105927393A (en) * 2016-06-01 2016-09-07 四川红光汽车机电有限公司 Novel electronic throttle body with sector gear and throttle shaft connected

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US6095488A (en) * 1999-01-29 2000-08-01 Ford Global Technologies, Inc. Electronic throttle control with adjustable default mechanism
DE60100267D1 (en) * 2000-07-05 2003-06-18 Visteon Global Tech Inc Electronic throttle control device with gear comb and gear alignment maintenance
CN102392742A (en) * 2011-10-12 2012-03-28 四川红光汽车机电有限公司 Electronic throttle body
CN105927393A (en) * 2016-06-01 2016-09-07 四川红光汽车机电有限公司 Novel electronic throttle body with sector gear and throttle shaft connected

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