CN104121098B - Electronic throttle of engine - Google Patents
Electronic throttle of engine Download PDFInfo
- Publication number
- CN104121098B CN104121098B CN201410338789.1A CN201410338789A CN104121098B CN 104121098 B CN104121098 B CN 104121098B CN 201410338789 A CN201410338789 A CN 201410338789A CN 104121098 B CN104121098 B CN 104121098B
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- CN
- China
- Prior art keywords
- printed circuit
- throttle
- cover plate
- spacing
- torsion spring
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000000758 substrate Substances 0.000 claims abstract description 12
- 210000002356 Skeleton Anatomy 0.000 claims description 8
- 230000000712 assembly Effects 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 description 1
- 229910001209 Low-carbon steel Inorganic materials 0.000 description 1
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000003247 decreasing Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 230000001340 slower Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Abstract
The invention discloses a kind of electronic throttle of engine, the throttle plate pin that including tb, is arranged on described tb, cover plate and the printed circuit-board assembly being arranged on described cover plate, described printed circuit-board assembly is oppositely arranged with throttle plate pin end face, wherein, the radome for housing this printed circuit-board assembly it is provided with between described printed circuit-board assembly and cover plate, this radome has the substrate portion being connected with cover plate and is positioned at the sidewall sections outside described printed circuit board (PCB), and printed circuit board (PCB) is fixed in this substrate portion.The present invention can shield external electromagnetic interference ideally, and control accuracy is high, and its position limiting structure is the most novel, compact, and that torsion spring is installed on sector gear is firm, it is little to impact, it is possible to realize the most spacing of air throttle.
Description
Technical field
The present invention relates to a kind of engine electric spray system, particularly relate to a kind of electronic throttle of engine.
Background technology
Electronic throttle is the important control parts of automobile engine, and its effect is to provide to electromotor persistently may be used
The air mass flow become, controls normal working of engine by air mass flow is increased or decreased, and provides for automobile
Required drive under various operating modes, it is achieved reasonably air-fuel ratio, makes mixed gas fully burn, reduces discharge,
And improve engine power performance, economy, comfortableness.
Electromotor is transmitted by the throttle plate pin being arranged on air throttle and the Hall element relative with throttle plate pin
Throttle opening amount signal, ECU comprehensively sentences further according to the throttle opening amount signal obtained and accelerator pedal signal etc.
Disconnected, to obtain optimal distributive value and air inflow, in this course, external magnetic field is easily to Hall element
Form interference, affect throttle control precision.
Meanwhile, tradition air throttle air throttle drives sector gear by direct current generator through double-reduction gear mechanism,
Thus control air throttle valve block aperture, it is generally required to limited block is set on tb sidewall so that it is position
In the head and the tail two ends of sector gear stroke, so that sector is carried out spacing, it is ensured that solar term when being in extreme position
Door standard-sized sheet or make electromotor be in idling mode, it usually needs install two back-moving springs, to keep moment of torsion also
Guarantee that sector gear return, throttle valve valve block return to initial position.To this end, the spacing knot of existing air throttle
All there is baroque problem in structure, causes installation inconvenience, add cost simultaneously.
Summary of the invention
For solve above technical problem, the present invention provide one can shield external electromagnetic interference, spacing reliably
Electronic throttle of engine.
Technical scheme is as follows:
A kind of electronic throttle of engine, including tb, the joint that is arranged on described tb
Air valve shaft, cover plate and the printed circuit-board assembly being arranged on described cover plate, described printed circuit-board assembly with
Throttle plate pin end face is oppositely arranged, and wherein, is provided with for holding between described printed circuit-board assembly and cover plate
Putting the radome of this printed circuit-board assembly, this radome has the substrate portion being connected with cover plate and is positioned at institute
Stating the sidewall sections outside printed circuit-board assembly, printed circuit-board assembly is fixed in this substrate portion, adopts
Use above structure, printed circuit-board assembly is placed in radome, the magnetic from side and the back side can be shielded
Field interference, is conducive to improving throttle control precision.
Preferably, described cover plate has the skeleton of triangle, is provided with electricity on the two of which angle of this skeleton
Machine transplanting of rice hole, is provided with plug connection on its another angle, and described plug connection side is provided with sensing
Device connects contact, and opposite side is provided with plug, and this plug is through cover sidewall and stretches into and is fixed on the cover plate back side
Supply socket in, use above structure, by being embedded in intraskeletal power circuit, can be effectively
Direct current generator provides power supply, and makes covering plate structure compacter.
Preferably, described printed circuit-board assembly includes printed circuit board (PCB) and is fixed on this printed circuit board (PCB)
Hall element, described sensor connects contact and passes substrate portion and printed circuit board (PCB), the described biography of radome
Sensor connects the end of contact and is positioned in the space that the sidewall sections of radome surrounds, and uses above structure, will
Sensor connects contact, printed circuit board (PCB) and Hall element and is placed in radome, and shield effectiveness is good.
Preferably, described throttle plate pin is provided with magnet assemblies, described group of magnets at the end face relative with cover plate
Part is positioned in the space that the sidewall sections of radome surrounds, and so, makes magnet assemblies also be located in shielding space,
Further increase shield effectiveness.
Preferably, described radome is made by high-permeability material such as stalloy, iron-nickel alloy, ultra-low-carbon steel etc.
Become, to guarantee its shield effectiveness.
Preferably, described tb being provided with spacing block set, described spacing block set is positioned at air throttle originally
Between body sidewall and throttle plate pin, described throttle plate pin is provided with sector gear, described sector gear sets
Being equipped with arc-shaped limit groove, spacing block set stretches in this stopper slot, sets between sector gear and tb
It is equipped with spring return mechanism.Use above structure, by the limit convex being arranged on tb end face
Block instead of two limited blocks arranged on sidewall, and can complete sector gear front and back position is spacing,
Simple in construction is novel, compact.
Preferably, the axle sleeve coordinated with throttle plate pin that described sector gear side is provided with, described axle sleeve with
Sector gear is wholely set, and is provided with the spacing breach of torsion spring in one end of this sector gear upper limit position groove；At fan
On shape gear, breach opposite side spacing with this torsion spring is provided with spacing projection；Arrange on described tb
There is torsion spring positive stop；Described spring return mechanism includes kink torsion spring on this axle sleeve, described torsion spring
One termination is between the spacing breach of spacing block set and torsion spring, and another termination is positioned at positive stop and limit convex
Between post.Reach a torsion spring with this and control throttle switch, the function of Double-directional rotary generation moment of torsion simultaneously,
And torsion spring is installed reliable, difficult drop-off.
Preferably, the end face of described spacing block set side has the first inclined-plane and stopper slot abutted with torsion spring
The second inclined-plane that end face matches, has an angle between described first inclined-plane and the second inclined-plane, described spacing
One end that groove and the second inclined-plane abut is inverted V-shaped, uses above structure, one end head to be connected to the first inclined-plane
On, facilitate torsion spring to install, when sector gear is in extreme position, stopper slot end face and the second inclined-plane abut,
Can preferably sector gear be carried out spacing, it is ensured that air throttle is in full-shut position.
Preferably, for making torsion spring more securely be installed on hollow axle, and reduce in work process produce rush
Hit, between described axle sleeve and torsion spring, be provided with torsional-spring supported set.
Beneficial effect: use the electronic throttle of engine of above technical scheme, it is possible to shield ideally
External electromagnetic interference, control accuracy is high, and its position limiting structure is the most novel, compact, by a torsion spring
Realizing controlling throttle switch, the function of Double-directional rotary generation moment of torsion, torsion spring is installed on sector gear simultaneously
Firm, impact little, it is possible to realize the most spacing of air throttle.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention；
Fig. 2 is the exploded perspective schematic diagram of the cover plate assembly of the present invention；
Fig. 3 is the perspective view of tb in the present invention；
Fig. 4 is the perspective view of sector gear in the present invention；
Fig. 5 is the exploded perspective schematic diagram of the present invention.
In figure, 1, tb, 2, throttle plate pin, 3, cover plate, 4, printed circuit-board assembly, 5 screens
Cover cover, 6, sector gear, 7, torsion spring, 8, torsional-spring supported set, 9, direct current generator, 10, idler gear,
11, little gear, 12, air throttle valve block.
Detailed description of the invention
Below in conjunction with embodiment and accompanying drawing, the invention will be further described.
As depicted in figs. 1 and 2, a kind of electronic throttle of engine, including tb 1, it is arranged on institute
State the throttle plate pin 2 on tb 1, cover plate 3 and the printed circuit board (PCB) group being arranged on described cover plate 3
Part 4, described printed circuit-board assembly 4 is oppositely arranged with throttle plate pin 2 end face, wherein, described printed circuit
The radome 5 for housing this printed circuit-board assembly 4, this shielding it is provided with between board component 4 and cover plate 3
Cover 5 has substrate portion 5a being connected with cover plate 3 and is positioned at the sidewall outside described printed circuit-board assembly 4
Part 5b, printed circuit-board assembly 4 is fixed in this substrate portion 5a.
As seen from Figure 2, described cover plate 3 has the skeleton 31 of triangle, is embedded with electricity in this skeleton 31
Source circuit, is provided with motor jack 32, respectively motor terminals on the two of which angle of this skeleton 31
Positive pole and negative pole, be provided with plug connection 33 on its another angle, and described plug connection 33 side sets
Being equipped with sensor and connect contact 33a, opposite side is provided with plug 33b, and this plug 33b passes cover plate 3 sidewall
And stretch in the supply socket 34 being fixed on cover plate 3 back side, skeleton 31 and the equal insert cover of plug connection 33
In plate 3.
In conjunction with Fig. 1 and Fig. 2 it can be seen that described printed circuit-board assembly 4 includes that printed circuit board (PCB) 41 is with solid
Being scheduled on the Hall element 42 on this printed circuit board (PCB) 41, described sensor connects 33a through through radome 5
Substrate portion 5a and printed circuit board (PCB) 41, substrate portion 5a of above-mentioned radome 5, printed circuit board (PCB) 41
Being fixed on cover plate 3 by rivet hot with Hall element 42, sensor connects the end of 33a and is positioned at radome 5
The space that surrounds of sidewall sections 5b in, meanwhile, throttle plate pin 2 is provided with at the end face relative with cover plate 3
Magnet assemblies 21, described magnet assemblies 21 also is located in the space that the sidewall sections 5b of radome 5 surrounds.
As it is shown on figure 3, be provided with the spacing block set 1a and positive stop 1b of arc on described tb 1,
Described spacing block set 1a and positive stop 1b is extended to sector gear 6 direction by tb 1, and
Being positioned on the arc section centered by throttle plate pin 2, the end face of this spacing block set 1a side has the first inclined-plane
1a1 and the second inclined-plane 1a2, between described first inclined-plane 1a1 and the second inclined-plane 1a2, shape has angle.
See Fig. 4, there are in the middle part of sector gear 6 the axle sleeve 6b extended to tb 1 direction, solar term
Door-hinge 2 penetrates in axle sleeve 6b, arranges an arc-shaped limit groove 6a centered by axle sleeve 6b, this stopper slot 6a
Through sector gear 6 both sides, are provided with torsion spring spacing breach 6c, stopper slot 6a in one end of stopper slot 6a
End face near torsion spring spacing breach 6c is inverted V-shaped so that it is preferably can fit with spacing block set 1a, turn round
The spring spacing breach 6c degree of depth is less than stopper slot 6a so that it is and non-through sector gear 6, on sector gear 6
Breach 6c opposite side spacing with torsion spring is provided with spacing projection 6d, described spacing projection 6d and axle sleeve 6b position
Homonymy in sector gear 6.
Combined Fig. 5 by Fig. 1 it can be seen that be provided with on described tb 1 throttle plate pin 2, cover plate 3,
Direct current generator 9, idler gear 10, be provided with sector gear 6, this sector gear on described throttle plate pin 2
6 engage with idler gear 10, and idler gear 10 engages with the little gear 11 of direct current generator 9 outfan, institute
Stating and be provided with the air throttle valve block 12 being connected with throttle plate pin 2 on tb 1, direct current generator 9 passes through
Little gear 11 exports power, slows down through idler gear 10, drives sector gear 6 to rotate, throttle valve axle 2
Rotate with air throttle valve block 12, in order to control throttle opening.After air throttle has assembled, spacing block set 1a
Can relatively be slidingly engaged in the groove 6a on sector gear 6, axle sleeve 6b is provided with torsion spring 7, institute
State torsion spring 7 and there are two terminations, one of them termination between spacing block set 1a and torsion spring spacing breach 6c,
And abut with the first inclined-plane 1a1, another termination is between positive stop 1b and spacing projection 6d, at axle
Being provided with torsional-spring supported set 8 between set 6b and torsion spring 7, described torsional-spring supported overlaps 8 one end and is provided with spring base,
Abut against in order to fixing torsion spring 7 and with tb 1 end face.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses this
Invention.Multiple amendment to these embodiments will be apparent from for those skilled in the art,
Generic principles defined herein can without departing from the spirit or scope of the present invention, at other
Embodiment realizes.Therefore, the present invention is not intended to be limited to the embodiments shown herein, but accords with
Close the widest range consistent with principles disclosed herein and features of novelty.
Claims (7)
1. an electronic throttle of engine, including tb (1), is arranged on described tb
(1) throttle plate pin (2) on, cover plate (3) and the printed circuit board (PCB) group being arranged on described cover plate (3)
Part (4), described printed circuit-board assembly (4) is oppositely arranged with throttle plate pin (2) end face, and its feature exists
In: it is provided with for housing this printed circuit board (PCB) between described printed circuit-board assembly (4) and cover plate (3)
The radome (5) of assembly (4), this radome (5) has the substrate portion (5a) being connected with cover plate (3)
With the sidewall sections (5b) being positioned at outside described printed circuit-board assembly (4), printed circuit-board assembly (4)
It is fixed in this substrate portion (5a)；
Cover plate (3) has the skeleton (31) of triangle, arranges on the two of which angle of this skeleton (31)
There is motor jack (32), its another angle is provided with plug connection (33), described plug connection
(33) side is provided with sensor connection contact (33a), and opposite side is provided with plug (33b), this plug
(33b) in passing cover plate (3) sidewall and stretching into the supply socket (34) being fixed on cover plate (3) back side；
Described printed circuit-board assembly (4) includes printed circuit board (PCB) (41) and is fixed on this printed circuit board (PCB) (41)
On Hall element (42), described sensor connects contact (33a) through through the substrate of radome (5)
Partly (5a) and printed circuit board (PCB) (41), described sensor connects the end of contact (33a) and is positioned at radome
(5) in the space that sidewall sections (5b) surrounds.
Electronic throttle of engine the most according to claim 1, it is characterised in that: described throttle plate pin
(2) at the end face relative with cover plate (3), magnet assemblies (21), described magnet assemblies (21) position are installed
In the space that the sidewall sections (5b) of radome (5) surrounds.
Electronic throttle of engine the most according to claim 1 and 2, it is characterised in that: described radome
(5) it is made up of high-permeability material.
Electronic throttle of engine the most according to claim 1 and 2, it is characterised in that: described air throttle
Being provided with spacing block set (1a) on body (1), described spacing block set (1a) is positioned at tb (1)
Between sidewall and throttle plate pin (2), described throttle plate pin (2) is provided with sector gear (6), described
Being provided with arc-shaped limit groove (6a) on sector gear (6), spacing block set (1a) stretches into this stopper slot (6a)
In, between sector gear (6) and tb (1), it is provided with spring return mechanism.
Electronic throttle of engine the most according to claim 4, it is characterised in that: described sector gear
(6) axle sleeve (6b) coordinated with throttle plate pin (2) that side is provided with, described axle sleeve (6b) is with fan-shaped
Gear (6) is wholely set, and is provided with torsion spring limit in one end of this sector gear (6) upper limit position groove (6a)
Position breach (6c)；It is provided with spacing at upper breach spacing with this torsion spring (6c) opposite side of sector gear (6)
Projection (6d)；Torsion spring positive stop (1b) it is provided with on described tb (1)；
Described spring return mechanism includes kink torsion spring (7) on this axle sleeve (6b), described torsion spring (7)
A termination be positioned between spacing block set (1a) and the spacing breach of torsion spring (6c), another termination is positioned at spacing
Between block (1b) and spacing projection (6d).
Electronic throttle of engine the most according to claim 5, it is characterised in that: described spacing
The end face of projection (1a) side has the first inclined-plane (1a1) and stopper slot (6a) abutted with torsion spring (7)
The second inclined-plane (1a2) that end face matches, has between described first inclined-plane (1a1) and the second inclined-plane (1a2)
Having an angle, one end that described stopper slot (6a) abuts with the second inclined-plane (1a2) is inverted V-shaped.
Electronic throttle of engine the most according to claim 6, it is characterised in that: described axle sleeve (6b)
And it is provided with torsional-spring supported set (8) between torsion spring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410338789.1A CN104121098B (en) | 2014-07-16 | Electronic throttle of engine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410338789.1A CN104121098B (en) | 2014-07-16 | Electronic throttle of engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104121098A CN104121098A (en) | 2014-10-29 |
| CN104121098B true CN104121098B (en) | 2017-01-04 |
Family
ID=
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6575427B1 (en) * | 1999-11-10 | 2003-06-10 | Visteon Global Technologies, Inc. | Electronic throttle control mechanism with reduced friction and wear |
| CN102128090A (en) * | 2010-01-19 | 2011-07-20 | 上海奥众汽车部件制造有限公司 | Electronic throttle valve body for diesel engine |
| CN203011398U (en) * | 2013-01-22 | 2013-06-19 | 重庆长安伟世通发动机控制系统有限公司 | Non-contact electronic throttle sensor |
| CN204003113U (en) * | 2014-07-16 | 2014-12-10 | 重庆渝辉机械有限公司 | Electronic throttle of engine |
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6575427B1 (en) * | 1999-11-10 | 2003-06-10 | Visteon Global Technologies, Inc. | Electronic throttle control mechanism with reduced friction and wear |
| CN102128090A (en) * | 2010-01-19 | 2011-07-20 | 上海奥众汽车部件制造有限公司 | Electronic throttle valve body for diesel engine |
| CN203011398U (en) * | 2013-01-22 | 2013-06-19 | 重庆长安伟世通发动机控制系统有限公司 | Non-contact electronic throttle sensor |
| CN204003113U (en) * | 2014-07-16 | 2014-12-10 | 重庆渝辉机械有限公司 | Electronic throttle of engine |
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