CN104912671A - Throttle body - Google Patents
Throttle body Download PDFInfo
- Publication number
- CN104912671A CN104912671A CN201410091860.0A CN201410091860A CN104912671A CN 104912671 A CN104912671 A CN 104912671A CN 201410091860 A CN201410091860 A CN 201410091860A CN 104912671 A CN104912671 A CN 104912671A
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- throttle
- wire
- control unit
- ecu
- drawing wheel
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- Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
Abstract
The invention aims to disclose a throttle body. The throttle body comprises a throttle main body provided with an air inlet channel inside, a throttle shaft perpendicular to the air inlet channel, a throttle piece embedded and fixed on the throttle shaft, a wire pull wheel fixed at one end of the throttle shaft, and a return spring acting on the throttle shaft, wherein an electric control unit is arranged on the side surface of the throttle main body; a permanent magnet is arranged at one end, near the electric control unit, of the throttle shaft, and is concentric with the throttle shaft; and a hall chip for inducing a magnetic field rotating angle of the permanent magnet is welded on a circuit board near the permanent magnet. Compared with the prior art, the throttle body has the characteristics of light and firm structure, no deformation in use, compact structure, good maintainability, good manufacturability, suitability for separate manufacturing of mechanical and electronic parts, good debugging and reliability and long service life, and realizes the purpose.
Description
Technical field
The present invention relates to a kind of throttle valve structure, particularly a kind of throttle body being applicable to miniature gasoline engine electric-controlling injection system.
Background technique
Throttle body is for regulating the air inflow of petrol engine, and throttle body comprises an inside the tb of gas-entered passageway, the throttle plate pin vertical with gas-entered passageway, inlay and be fixed on the throttle blade on throttle plate pin, the wire-drawing wheel being fixed on throttle plate pin one end and the Returnning spring acted on throttle plate pin.
Existing throttle body, there are the following problems:
(1) be mostly made up of metal, structural rate is heavier;
(2) ECU (Electrical Control Unit) is separated with throttle body, and level of integration is low, is unfavorable for safeguarding;
(3) throttle body is provided with discrete throttle position sensor, size is large, poor reliability.
These shortcomings above-mentioned, at miniature gasoline engine, such as motorcycle engine are applied especially outstanding.
Such as, application number be 201110032450.5 patent of invention disclose a kind of plastic throttle valve body, comprise plastic casing, Returnning spring, throttle blade, first tapping screw, throttle plate pin, bearing, spacing clamp, elongated slot, first hanging feet, the parts such as the second hanging feet and insert of mounting hole, instead of common aluminum alloy with plastics with the essential difference of current conventional throttle body, in order to solve the strength problem of tapped hole, have employed many inserts, the program in use cannot solve the contraction problem produced in plastic injection molding process, and the creep problem in use produced, simultaneously above-mentioned problem (2) does not solve with problem (3).
And for example, application number be 200410072018.9 application for a patent for invention disclose a kind of all-in-one-piece throttle body, its main feature is that closure side has an ECU (Electrical Control Unit) housing, include ECU (Electrical Control Unit) circuit board, although solve above-mentioned problem (2), namely level of integration is high, but find in process of production, this ECU (Electrical Control Unit) housing and throttle body have inseparable design feature, electronic unit and mechanical part can not be separated and manufacture and debug, manufacturability is poor, and this design simultaneously can not solve the above problems (1) and problem (3).
Therefore, a kind of throttle body of special needs, to solve above-mentioned existing Problems existing.
Summary of the invention
The object of the present invention is to provide a kind of throttle body, for the deficiencies in the prior art, there is structure light and firm, indeformable in using, compact structure, maintainability is good, good manufacturability simultaneously, is applicable to machinery and electronic unit separates the long feature of manufacture and debugging and good reliability life-span.
Technical problem solved by the invention can realize by the following technical solutions:
A kind of throttle body, it is characterized in that, it comprises: the tb that the engineering plastics being filled with reinforcing fiber by inside are made, and the inside of tb is provided with a gas-entered passageway; Throttle plate pin vertically disposed with gas-entered passageway; Inlay and be fixed on the throttle blade on throttle plate pin; Be fixed on the wire-drawing wheel of throttle plate pin one end; And the Returnning spring acted on throttle plate pin; The side of described tb is provided with an ECU (Electrical Control Unit), described ECU (Electrical Control Unit) comprises an ECU (Electrical Control Unit) housing and the circuit board for engine control, the plane of circuit board is vertical with the shaft axis of throttle plate pin, is connected as one between ECU (Electrical Control Unit) housing and tb by fastening piece; At throttle plate pin, one end of ECU (Electrical Control Unit) is provided with a permanent magnet, permanent magnet is concentric with throttle plate pin; Position close with permanent magnet on circuit boards, be welded with the Hall chip of an induction magnetic field of permanent magnet angle of swing, two outer surfaces that Hall chip is relative with permanent magnet are parallel and vertical with the shaft axis of throttle plate pin.
In one embodiment of the invention, homalographic and symmetrical S and N two magnetic poles on described permanent magnet exterior edge face.
In one embodiment of the invention, the side of described tb is provided with a mounting flange, is fastened as a whole mutually between described ECU (Electrical Control Unit) housing and mounting flange by screw.
In one embodiment of the invention, described circuit board is welded with connector body, the relevant position of described ECU (Electrical Control Unit) housing is provided with window, and described connector body stretches out from described window.
In one embodiment of the invention, the sidewall of described gas-entered passageway is provided with first passage and second channel, the exterior edge face of mounting flange is provided with the groove with first passage and second channel UNICOM, a clamp is connected with in the locating slot of throttle plate pin, and clamp covers on groove simultaneously, clamp offers valve opening, valve opening is positioned at above groove, one spool is embedded in valve opening also can do elevating movement on groove depth direction, the diameter of spool and the width of groove are close, and nose shape and the channel bottom matching form of spool close.
In one embodiment of the invention, described tb side is also provided with a wire-drawing wheel dust shield case, described wire-drawing wheel is shrouded within it in chamber, described wire-drawing wheel dust shield case is made up of inner housing and frame two-part, inner housing and tb are wholely set, and frame is fastenedly connected by screw and inner housing and is integrated.
In one embodiment of the invention, described wire-drawing wheel is provided with a boss, described boss is provided with the spacing plane of idling and the spacing plane of maximum opening, wire-drawing wheel dust shield case is fixed with an inserts, idle opening degree adjustment screw is installed in this inserts, wire-drawing wheel dust shield case is also provided with maximum opening restriction boss.
In one embodiment of the invention, wire-drawing wheel dust shield case periphery is provided with an acceleration cable support, acceleration cable support is provided with acceleration cable mounting hole, the overcoat head of acceleration cable is fixed in acceleration cable mounting hole, acceleration cable stretches out from overcoat head and is looped around the groove of wire-drawing wheel, and the fixing pin of the head of acceleration cable is stuck in the pin-and-hole of wire-drawing wheel.
In one embodiment of the invention, the frame of described ECU (Electrical Control Unit) shell and wire-drawing wheel dust shield case is made up of engineering plastics.
In one embodiment of the invention, described engineering plastics are polyphenylene sulfide (PPS), and described reinforcing fiber is glass fibre.
The beneficial effect of throttle body of the present invention:
1, tb is made up of engineering plastics, alleviates the weight of throttle body; Adopt filling reinforcing fiber in plastics simultaneously, solve the contraction problem of plastics in course of working, and creep problem in use;
2, ECU (Electrical Control Unit) and tb are in use combined as a whole, and compact structure mounting process is good, and be separated in process of production simultaneously, can realize electronic unit and produce with separating of mechanical part and debug, production technology is good;
3, Hall element induction throttle position is adopted, not only achieve noncontacting measurement, improve the life-span of sensor, simultaneously owing to being fixed on the permanent magnet of closure axle head, and only contacted by magnetic field between the Hall chip on circuit board, between there is no plug and line, reliability improves further, and assembly process process improves further.
Throttle body of the present invention, compared with prior art, has structure light and firm, indeformable in using, compact structure maintainability is good, simultaneously good manufacturability, be applicable to mechanical and that electronic unit separately manufactures and debugs and the good reliability life-span is long feature, realize object of the present invention.
The detailed description and obtaining that feature of the present invention can consult the graphic and following better mode of execution of this case is well understood to.
Accompanying drawing explanation
Fig. 1 is the structural representation of throttle body of the present invention;
Fig. 2 is the structural representation of wire-drawing wheel dust shield case of the present invention;
Fig. 3 is the forward schematic diagram in ECU (Electrical Control Unit) mounting flange face after the present invention removes ECU (Electrical Control Unit);
Fig. 4 is the circuit board connector socket of ECU (Electrical Control Unit) of the present invention and the sectional view of window.
Embodiment
The technological means realized to make the present invention, creation characteristic, reaching object and effect is easy to understand, below in conjunction with concrete diagram, setting forth the present invention further.
Embodiment
As depicted in figs. 1 and 2, throttle body of the present invention, it comprises: tb 100, and the inside of tb 100 is provided with a gas-entered passageway 200; Throttle plate pin 300 vertically disposed with gas-entered passageway 200, throttle plate pin 300 is connected with tb 100 by bearing 110; Have gap in the middle of throttle plate pin 300, throttle blade 400 is inlayed wherein, and throttle blade 400 and throttle plate pin 300 are fixed as one by two screws 310; Be fixed on the wire-drawing wheel 500 of throttle plate pin 300 one end; And the Returnning spring 600 acted on throttle plate pin 300, Returnning spring 600 acts on throttle plate pin 300, makes throttle plate pin 300 be subject to the reposition force of rotation direction idle opening degree all the time.
The side of described tb 100 is provided with an ECU (Electrical Control Unit) 700, described ECU (Electrical Control Unit) 700 comprises an ECU (Electrical Control Unit) housing 710 and the circuit board 720 for engine control, the inner embedding of ECU (Electrical Control Unit) housing 710 has electron pouring sealant 711, electron pouring sealant 711 covering board 720 and circuit board 720 plane vertical with the shaft axis of throttle plate pin 300.
The side of described tb 100 is provided with a mounting flange 730, mounting flange 730 has four mounting holes 731, by 4 screws 732, ECU (Electrical Control Unit) 700 and the mounting flange 730 on tb 100 is fastened as a whole.
As shown in figures 1 and 3, a permanent magnet 740 is fixed with near one end of ECU (Electrical Control Unit) 700 at throttle plate pin 300, permanent magnet 740 is concentric with throttle plate pin 300, permanent magnet 740 shape is the circular piece of band mesopore, permanent magnet 740 is in advance by diametrical magnetization, and form S and N two magnetic poles as shown in Figure 3, these two magnetic poles are about Central Symmetry, area equation, permanent magnet 740 is connected as one by a transition working of plastics 741 and throttle plate pin 300.Position close with permanent magnet 740 on circuit board 720, be welded with the Hall chip 750 of an induction permanent magnet 740 magnetic field rotating angle, the end face of Hall chip 750 is parallel with the exterior edge face of permanent magnet 740, and vertical with the shaft axis of throttle plate pin 300.
In work, the magnetic field penetration ECU (Electrical Control Unit) housing 710 of permanent magnet 740, act on Hall chip 750, when throttle plate pin 300 drives permanent magnet 740 to rotate, the magnetic field acted on Hall chip 750 also rotates, its rotation angle information is detected by Hall chip 750, by the master chip be transported to as throttle position signal on circuit board 720.
As shown in Figure 2 and Figure 4, two connector bodies 760 are welded on circuit board 720 by contact pin 761, in the relevant position on the top of ECU (Electrical Control Unit) housing 710, have two windows, 770, two connector bodies 760 and stretch out from this window 770.
In work, the peripheral sensor signal of motor and VDD-to-VSS are all inputted by this connector body 760, and the drive singal of oil sprayer, igniting and oil pump is also exported by this connector body 760.
As depicted in figs. 1 and 2, the sidewall of described gas-entered passageway 200 offers first passage 210 and second channel 220, be communicated with downstream chamber 240 with the upstream chamber 230 of gas-entered passageway 200 respectively.
As shown in Figure 3, the groove 120 with first passage 210 and second channel 220 UNICOM is had in the exterior edge face of the mounting flange 730 of ECU (Electrical Control Unit) 700, one clamp 130 is stuck in the locating slot 310 of throttle plate pin 300, the thickness of clamp 130 and the width fits of locating slot 310, make throttle plate pin 300 obtain axially locating, clamp 130 is fixed on the mounting flange 730 of ECU (Electrical Control Unit) 700 by two tapping screws 131.Clamp 130 also covers on groove 120, makes first passage 210, groove 120, second channel 220 form the passage of a through upstream chamber 230 and downstream chamber 240.Clamp 130 has valve opening 132, valve opening 132 is positioned at above groove 120, and a spool 133 gos deep into valve opening 132, the diameter of spool 133 and the width of groove 120 close, spool 133 nose shape matches with groove 120 bottom shape.The outermost of spool 133 has screw-driver mating groove 134, and stretch out from ECU (Electrical Control Unit) 700 exterior edge face, middle part is screw thread, also has the O type circle 135 sealed for spool 133, have an inserts 136 to be embedded on ECU (Electrical Control Unit) housing 710, spool 133 is arranged on this inserts 136.
In using, by screw-driver rotary spool 133, spool 133 moves up and down at groove 120 depth direction, reaches the effect controlling groove 120 circulation area, realizes the object of the air mass flow regulating idling operation.
As shown in figures 1 and 3, the sidewall of gas-entered passageway 200 also has a mounting hole 250, one intake air temperature sensor 260 is installed wherein, the temperature-sensitive head of this intake air temperature sensor 260 stretches out from mounting hole 250 and is exposed to upstream chamber 230, and the leads ends of this intake air temperature sensor 260 is welded on the circuit board 720 of ECU (Electrical Control Unit) 700.
As shown in figures 1 and 3, on the exterior edge face of mounting flange 730, also have O type circle sealing mechanism, be made up of O type ring recess and O type circle 733, dust and water for preventing outside enter the gap between ECU (Electrical Control Unit) 700 and mounting flange 730.
As depicted in figs. 1 and 2, tb 100 side is also provided with a wire-drawing wheel dust shield case 800, there is a wire-drawing wheel 500 one end of throttle plate pin 300, wire-drawing wheel 500 is shrouded in wire-drawing wheel dust shield case 800 inner chamber, wire-drawing wheel dust shield case 800 is made up of inner housing 810 and frame 820 two-part, inner housing 810 wherein belongs to same moulding with tb 100, and frame 820 is separate component, is installed as one by screw through screw hole 830 and inner housing 810.
As depicted in figs. 1 and 2, wire-drawing wheel 500 is provided with boss 510, boss 510 there are the spacing plane of idling 511 and the spacing plane 512 of maximum opening, wire-drawing wheel dust shield case 800 is embedded with inserts 840, idle opening degree adjustment screw 850 is installed in inserts 840, idle opening degree adjustment screw 850 there is locking nut 851, wire-drawing wheel dust shield case 800 is also provided with maximum opening restriction boss 860.
In using, the head 852 of idle opening degree adjustment screw 850 contacts with the spacing plane 511 of idling, can determine the idle position of throttle blade 400, maximum opening restriction boss 860 contacts with the spacing plane 512 of maximum opening, can determine the maximum opening of throttle blade 400.
In using, user can change the idle opening degree of throttle blade 400 by rotational idle aperture adjustment screw 850, also can change the air quantity of engine idle.
Wire-drawing wheel dust shield case 800 periphery is provided with an acceleration cable support 870, acceleration cable support is provided with two acceleration cable mounting holes 871, the overcoat head 872 of acceleration cable passes through in acceleration cable mounting hole 871, and fixed by locking nut 873 and acceleration cable support 870, acceleration cable 874 stretches out from overcoat head 872 and is looped around the groove of wire-drawing wheel 500, and the fixing pin 880 of the head of acceleration cable 874 is stuck in the pin-and-hole 520 of wire-drawing wheel 500.
In using, the acceleration cable 874 of both sides with the use of, when motor needs to accelerate, the acceleration cable 874 of side pulls out, and the acceleration cable 874 of opposite side loosens toward interior, and wire-drawing wheel 500 rotates clockwise, throttle blade 400 aperture increases, and the air inflow of motor strengthens, and power increases; When needs slow down, above-mentioned action is contrary, and throttle blade 400 aperture reduces, and air input of engine by air reduces, and power reduces.
In the present embodiment, the frame 820 of tb 100, ECU (Electrical Control Unit) housing 710 and wire-drawing wheel dust shield case 800 be all be made up of engineering engineering plastics, and plastics inner is filled with reinforcing fiber, particularly enhances the polyphenylene sulfide (PPS) of glass fibre.
In the present embodiment, the spool 133 of idle hole is manual adjustment, there is feature simple and reliable for structure, also automatically controlled regulation scheme conventional in the market can be adopted: be connected to by spool 133 on the dynamic iron of an electromagnet, or link (figure does not express) with a step motor shaft, so just can be regulated the air mass flow of idling by the control signal of ECU (Electrical Control Unit) 700.
On the circuit board 720 of ECU (Electrical Control Unit) 700, the sensor of an energy atmospheric sounding pressure can also be welded, and be connected (figure does not express) by passage and intake duct.
Tb 100 can also mount the miscellaneous part of electric injection system, such as: suction tude, electric-controlled fuel injector, external pump, carbon tank valve and gasoline filtering etc.
More than show and describe basic principle of the present invention and major character and advantage of the present invention.The technician of the industry should understand; the present invention is not restricted to the described embodiments; what describe in above-described embodiment and specification just illustrates principle of the present invention; without departing from the spirit and scope of the present invention; the present invention also has various changes and modifications; these changes and improvements all fall in the claimed scope of the invention, and application claims protection domain is defined by appending claims and equivalent thereof.
Claims (10)
1. a throttle body, is characterized in that, it comprises: the tb that the engineering plastics being filled with reinforcing fiber by inside are made, and the inside of tb is provided with a gas-entered passageway; Throttle plate pin vertically disposed with gas-entered passageway; Inlay and be fixed on the throttle blade on throttle plate pin; Be fixed on the wire-drawing wheel of throttle plate pin one end; And the Returnning spring acted on throttle plate pin; The side of described tb is provided with an ECU (Electrical Control Unit), described ECU (Electrical Control Unit) comprises an ECU (Electrical Control Unit) housing and the circuit board for engine control, the plane of circuit board is vertical with the shaft axis of throttle plate pin, is connected as one between ECU (Electrical Control Unit) housing and tb by fastening piece; At throttle plate pin, one end of ECU (Electrical Control Unit) is provided with a permanent magnet, permanent magnet is concentric with throttle plate pin; Position close with permanent magnet on circuit boards, be welded with the Hall chip of an induction magnetic field of permanent magnet angle of swing, two outer surfaces that Hall chip is relative with permanent magnet are parallel and vertical with the shaft axis of throttle plate pin.
2. throttle body as claimed in claim 1, is characterized in that, homalographic on described permanent magnet exterior edge face and symmetrical S and N two magnetic poles.
3. throttle body as claimed in claim 1, it is characterized in that, the side of described tb is provided with a mounting flange, is fastened as a whole mutually between described ECU (Electrical Control Unit) housing and mounting flange by screw.
4. the throttle body as described in claim 1 or 3, is characterized in that, described circuit board is welded with connector body, and the relevant position of described ECU (Electrical Control Unit) housing is provided with window, and described connector body stretches out from described window.
5. throttle body as claimed in claim 1, it is characterized in that, the sidewall of described gas-entered passageway is provided with first passage and second channel, the exterior edge face of mounting flange is provided with the groove with first passage and second channel UNICOM, a clamp is connected with in the locating slot of throttle plate pin, and clamp covers on groove simultaneously, clamp offers valve opening, valve opening is positioned at above groove, one spool is embedded in valve opening also can do elevating movement on groove depth direction, the diameter of spool and the width of groove are close, nose shape and the channel bottom matching form of spool close.
6. throttle body as claimed in claim 1, it is characterized in that, described tb side is also provided with a wire-drawing wheel dust shield case, described wire-drawing wheel is shrouded within it in chamber, described wire-drawing wheel dust shield case is made up of inner housing and frame two-part, inner housing and tb are wholely set, and frame is fastenedly connected by screw and inner housing and is integrated.
7. throttle body as claimed in claim 6, it is characterized in that, described wire-drawing wheel is provided with a boss, described boss is provided with the spacing plane of idling and the spacing plane of maximum opening, wire-drawing wheel dust shield case is fixed with an inserts, idle opening degree adjustment screw is installed in this inserts, wire-drawing wheel dust shield case is also provided with maximum opening restriction boss.
8. throttle body as claimed in claim 7, it is characterized in that, wire-drawing wheel dust shield case periphery is provided with an acceleration cable support, acceleration cable support is provided with acceleration cable mounting hole, the overcoat head of acceleration cable is fixed in acceleration cable mounting hole, acceleration cable stretches out from overcoat head and is looped around the groove of wire-drawing wheel, and the fixing pin of the head of acceleration cable is stuck in the pin-and-hole of wire-drawing wheel.
9. the throttle body as described in claim 1,3 or 6, is characterized in that, the frame of described ECU (Electrical Control Unit) shell and wire-drawing wheel dust shield case is made up of engineering plastics.
10. the throttle body as described in claim 1 or 9, is characterized in that, described engineering plastics are polyphenylene sulfide (PPS), and described reinforcing fiber is glass fibre.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410091860.0A CN104912671A (en) | 2014-03-13 | 2014-03-13 | Throttle body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410091860.0A CN104912671A (en) | 2014-03-13 | 2014-03-13 | Throttle body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104912671A true CN104912671A (en) | 2015-09-16 |
Family
ID=54082058
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410091860.0A Pending CN104912671A (en) | 2014-03-13 | 2014-03-13 | Throttle body |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104912671A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869053A (en) * | 2017-05-11 | 2018-11-23 | 华益机电有限公司 | A kind of electrospray throttle valve |
| CN109083749A (en) * | 2018-07-09 | 2018-12-25 | 冯子光 | A kind of magnetic balanced air valve and the exhaust tube using the air valve |
| CN111648868A (en) * | 2020-07-13 | 2020-09-11 | 江门赛力孚电子科技有限公司 | Bucket type idling air quantity automatic regulating device for gasoline engine electric injection system |
| CN114278443A (en) * | 2022-01-14 | 2022-04-05 | 成都恒高机械电子有限公司 | Electric injection throttle body |
-
2014
- 2014-03-13 CN CN201410091860.0A patent/CN104912671A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108869053A (en) * | 2017-05-11 | 2018-11-23 | 华益机电有限公司 | A kind of electrospray throttle valve |
| CN109083749A (en) * | 2018-07-09 | 2018-12-25 | 冯子光 | A kind of magnetic balanced air valve and the exhaust tube using the air valve |
| CN109083749B (en) * | 2018-07-09 | 2023-08-22 | 冯子光 | Magnetic force balance air valve and exhaust barrel using same |
| CN111648868A (en) * | 2020-07-13 | 2020-09-11 | 江门赛力孚电子科技有限公司 | Bucket type idling air quantity automatic regulating device for gasoline engine electric injection system |
| CN111648868B (en) * | 2020-07-13 | 2024-05-14 | 江门赛力孚电子科技有限公司 | Bucket type idle air quantity automatic regulating device for gasoline engine electric spray system |
| CN114278443A (en) * | 2022-01-14 | 2022-04-05 | 成都恒高机械电子有限公司 | Electric injection throttle body |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150916 |
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| WD01 | Invention patent application deemed withdrawn after publication |