CN203629589U - Signal induction device of exhaust gas recirculation valve - Google Patents
Signal induction device of exhaust gas recirculation valve Download PDFInfo
- Publication number
- CN203629589U CN203629589U CN201320818403.8U CN201320818403U CN203629589U CN 203629589 U CN203629589 U CN 203629589U CN 201320818403 U CN201320818403 U CN 201320818403U CN 203629589 U CN203629589 U CN 203629589U
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- China
- Prior art keywords
- push rod
- induction device
- exhaust gas
- gas recirculation
- induction installation
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Abstract
The utility model discloses a signal induction device of an exhaust gas recirculation valve. The signal induction device comprises a housing. The housing is internally provided with a valve cavity and an induction device cavity which are communicated with each other. The induction device cavity is internally provided with a push rod. One end of the push rod is arranged in the induction device cavity in such a manner that the one end of the push rod is capable of sliding along the axial direction of the push rod. The other end of the push rod extends our of the induction device cavity and is arranged in the valve cavity. One end, arranged in the valve cavity, of the push rod is provided with an upper cover piece. The induction device cavity is further internally provided with a push rod reset member, magnetic steel, a circuit board and a Hall element. The circuit board and the Hall element are fixedly arranged on the side wall of the induction device cavity. The push rod is provided with an installation groove. The installation groove is internally provided with a magnetic steel sleeve used for fixing the magnetic steel. The valve cavity is further provided with an elastic compressing seat used for compressing the upper cover piece towards the central direction of the push rod. The upper cover piece comprises a cover plate, a side plate and a base plate. The base plate is formed by the side plate extending outwards. A folded corner is formed at the connecting part between the base plate and the side plate. The folded corner is compressed by the end part of the elastic compressing seat. The signal induction device of the exhaust gas recirculation valve is firmer in structure and more compact in matching.
Description
Technical field
The utility model belongs to valve field, relates in particular to a kind of signal induction device of exhaust gas recirculation valve.
Background technology
Exhaust gas recirculating valve of engine door is an electromechanical integrated product that is used for controlling the amount of exhaust gas recirculation that feeds back to gas handling system.Its effect is the discharge rate that reduces nitrogen oxide in waste gas, reduces the pollution of vehicle exhaust to atmosphere.In the time that engine turns round under load, automobile exhaust gas recirculation valve is opened, and makes a small amount of waste gas enter draft tube, enters firing chamber together with combustion mixture, makes a certain amount of waste gas carry out recycle, and the exhausted air quantity that enters atmosphere is controlled.
Traditional signal induction device for exhaust gas recirculating valve of engine door, generally include housing, lid and push rod, push rod one end can be along ejector rob axis to being slidably arranged in housing, in housing, be also provided with push rod return unit, magnet steel, wiring board and Hall element, in housing, be also provided with rotary barrel, magnetic steel sleeve is in rotary barrel end, and rotary barrel inwall is provided with spiral deep-slotted chip breaker, push rod is provided with correspondence and snaps in the projection of rotary barrel spiral deep-slotted chip breaker, and wiring board and Hall element are contained in magnet steel one side.The sensor module of said structure, in use is, when automobile computer detects engine heavy service, send control voltage, linear electric motors action, makes motor shaft to motion down, band dynamic sensor push rod moves downward, and sensor push rod driven rotary bucket is offered rotation, and magnet steel also rotates thereupon, Hall element is experienced after the rotational angle of rotary barrel, export corresponding corresponding voltage, automobile computer receives after feedback voltage, in the time that linear axis motion puts in place, stop output and control voltage, adjustment process completes.But technique scheme, complex structure, and also manufacture process requirement is high.
If Granted publication number is that the patent document " a kind of sensor for exhaust gas recirculation (egr) valve " of CN202255420 U is disclosed, it comprises housing, lid and push rod, push rod end can be along ejector rob axis to being slidably arranged in housing, in housing, be also provided with push rod return unit, magnet steel and wiring board and Hall element, magnetic steel sleeve is located at push rod outside, and wiring board and Hall element are fixedly installed in housing.The sensor of this structure has been simplified its inner structure greatly, but because magnet steel is installed in push rod outside, directly contacts with upper cover piece, in the time that push rod axially does upper and lower rectilinear motion along it, between magnet steel and upper cover piece, friction mutually, causes wearing and tearing to magnet steel, reduces its serviceable life.The utility model is the improved technical scheme of the one based on this patent.
Utility model content
In order to overcome the deficiencies in the prior art, it is a kind of than the more firmly signal induction device of exhaust gas recirculation valve of prior art structure that the utility model provides.
To achieve these goals, the technical solution adopted in the utility model is: a kind of signal induction device of exhaust gas recirculation valve, comprise housing, in housing, be provided with valve pocket and the induction installation chamber of mutual conducting, induction installation is provided with push rod in chamber, push rod one end can be along ejector rob axis to being slidably arranged in induction installation chamber, the push rod other end stretches out outside induction installation chamber and is arranged in valve pocket, one end that push rod is positioned at valve pocket is arranged with cover piece, in induction installation chamber, be also provided with push rod return unit, magnet steel, wiring board and Hall element, wiring board and Hall element are fixedly installed on the sidewall position relative with magnet steel, induction installation chamber, one end that push rod is positioned at induction installation chamber offers the mounting groove that holds magnet steel, in mounting groove, be also provided with magnetic steel sleeve, magnet steel is embedded in magnetic steel sleeve, it is characterized in that: in described valve pocket, be also provided with the elastic compression seat towards described push rod center position extruding by described upper cover piece, described upper cover piece comprises cover plate, side plate and base plate, described base plate is extended outwardly and is formed by described side plate, described base plate and described side plate junction form knuckle, described knuckle is being pushed in the end of described elastic compression seat.
In said structure, arranging of upper cover piece can be played the effect of stablizing guide rod, makes guide rod there will not be and rock in axially-movable process, reduces signal output pulsation, further coordinating of fastening upper cover piece and guide rod of the setting of elastic compression seat.
As further setting of the present utility model, described cover plate is provided with boss towards the inwall in described induction installation chamber, offers the through hole passing for described push rod on described boss, and described through hole runs through described cover plate.
In said structure, boss the length of fit that has increased cover plate and guide rod is set, further strengthened the contact area of cover plate and guide rod, make this guide rod in the process of axially-movable, have larger axial location anchorage force, increase its kinetic stability.
As further setting of the present utility model, described through-hole diameter is less than described push rod diameter, one end that described push rod is positioned at described valve pocket comprises cardinal extremity, and the elongated end being extended towards described valve pocket direction by cardinal extremity, described elongated end has the diameter coordinating with described through-hole diameter, and the outer wall of described elongated end and the outer wall of described cardinal extremity are connected to form step confined planes.
In said structure, the outer wall of the elongated end of guide rod coordinates formation to slide up and down structure with the inwall of through hole, and the step confined planes of cardinal extremity and elongated end can prevent the motion of the guide rod excess of stroke and play position-limiting action.
As further setting of the present utility model, described step confined planes is inner concave arc surface setting, and the through-hole wall of described boss has the convex globoidal coordinating with described inner concave arc surface towards the end of described cardinal extremity.
In said structure, the intensity that can strengthen both junctions that coordinates of the inner concave arc surface of step confined planes and the convex globoidal of through-hole wall, if step confined planes and through-hole wall are the setting of sharp edge end in addition, in the collision moving up and down, its most advanced and sophisticated and most advanced and sophisticated collision easily causes and damages and reduction intensity its joint face, and inner concave arc surface has solved the problems referred to above with coordinating of convex globoidal.
As further setting of the present utility model, described base plate comprise extended outwardly by described side plate along limit, the described other end being relatively connected with described side plate along limit is extended with L shaped fastening limit, described induction installation chamber offers the open slot being embedded for described fastening limit towards the outer face of the sidewall of described valve pocket, the vertical portion on described fastening limit and the described 7 shape flangings that are arranged in described open slot one side channel wall that are connected to form along limit, the horizontal part butt on described fastening limit described open slot opposite side cell wall.
In said structure, this base plate forms dual screens fixation, and installation location is more stable.
As further setting of the present utility model, the cell wall of a side of the horizontal part butt on described open slot and described fastening limit is higher than the height of described fastening limit horizontal part.
In said structure, because above-mentioned elastic compression seat has certain elasticity, on this, cover piece can have local upward movement with push rod and elastic compression seat unavoidably, and the height of above-mentioned open slot sidewall provides higher than the height of fastening limit horizontal part the space that allows this above-mentioned motion, avoids it to deviate from open slot.
Below in conjunction with accompanying drawing, the utility model is further described.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model specific embodiment structural representation;
Accompanying drawing 2 is the utility model specific embodiment partial enlarged drawing.
Embodiment
Specific embodiment of the utility model is the signal induction device of exhaust gas recirculation valve as shown in Figure 1-2, comprise housing 1, in housing 1, be provided with valve pocket 12 and the induction installation chamber 11 of mutual conducting, in induction installation chamber 11, be provided with push rod 2, push rod 2 one end can be arranged in induction installation chamber 11 axially slidably along push rod 2, push rod 2 other ends stretch out outside induction installation chamber 11 and are arranged in valve pocket 12, one end that push rod 2 is positioned at valve pocket 12 is arranged with cover piece 3, in induction installation chamber 11, be also provided with push rod back-moving spring 4, magnet steel 5, wiring board 6 and Hall element 7, wiring board 6 and Hall element 7 are fixedly installed on the 11 sidewalls position relative with magnet steel 5, induction installation chamber, one end that push rod 2 is positioned at induction installation chamber 11 offers the mounting groove 21 that holds magnet steel 5, in mounting groove 21, be also provided with magnetic steel sleeve 211, magnet steel 5 is embedded in magnetic steel sleeve 211, in valve pocket 12, be also provided with the elastic compression seat 8 towards push rod 2 center position extruding by upper cover piece 3, upper cover piece 3 comprises cover plate 31, side plate 32 and base plate 33, base plate 33 is extended outwardly and is formed by side plate 32, base plate 33 forms knuckle 34 with side plate 32 junctions, knuckle 34 is being pushed in the end of elastic compression seat 8.Arranging of upper cover piece 3 can be played the effect of stablizing guide rod 2, makes guide rod 2 there will not be and rock in axially-movable process, reduces signal output pulsation, further coordinating of fastening upper cover piece 3 and guide rod 2 of the setting of elastic compression seat 8.
Above-mentioned cover plate 31 is provided with boss 35 towards the inwall in induction installation chamber 11, offers the through hole passing for push rod 2 on boss 35, and through hole runs through cover plate 31.Arranging of boss 35 increased the length of fit of cover plate 31 with guide rod 2, further strengthened the contact area of cover plate 31 with guide rod 2, makes this guide rod 2 in the process of axially-movable, have larger axial location anchorage force, increases its kinetic stability.
Above-mentioned through-hole diameter is less than push rod 2 diameters, one end that push rod 2 is positioned at valve pocket 12 comprises cardinal extremity 2a, and the elongated end 2b being extended towards valve pocket 12 directions by cardinal extremity 2a, elongated end 2b has the diameter coordinating with through-hole diameter, and the outer wall of the outer wall of elongated end 2b and cardinal extremity 2a is connected to form step confined planes 2c.The outer wall of elongated end 2b of guide rod 2 and the inwall of through hole coordinate formation to slide up and down structure, and the step confined planes 2c of cardinal extremity 2a and elongated end 2b can prevent guide rod 2 excess of stroke motions and play position-limiting action.
Above-mentioned step confined planes 2c is inner concave arc surface setting, and the through-hole wall of boss 35 has the convex globoidal 351 coordinating with inner concave arc surface towards the end of cardinal extremity 2a.The intensity that can strengthen both junctions that coordinates of the inner concave arc surface of step confined planes 2c and the convex globoidal 351 of through-hole wall, if step confined planes 2c and through-hole wall are the setting of sharp edge end in addition, in the collision moving up and down, its most advanced and sophisticated and most advanced and sophisticated collision easily causes and damages and reduction intensity its joint face, and inner concave arc surface has solved the problems referred to above with coordinating of convex globoidal 351.
Above-mentioned base plate 33 comprise extended outwardly by side plate 32 along limit 331, the other end being relatively connected with side plate 32 along limit 331 is extended with L shaped fastening limit 332, induction installation chamber 11 offers the open slot 111a being embedded for fastening limit 332 towards the outer face of the sidewall 111 of valve pocket 12, the Yu Yan limit, vertical portion 331 on fastening limit 332 is connected to form the 7 shape flangings that are arranged in open slot 11a mono-side channel wall, and the horizontal part butt on fastening limit 332 open slot 111a opposite side cell wall.This base plate 33 forms dual screens fixation, and installation location is more stable.
The cell wall 111b of one side of the horizontal part butt on above-mentioned open slot 111a and fastening limit 332 is higher than the height of fastening limit 332 horizontal parts.Because above-mentioned elastic compression seat 8 has certain elasticity, on this, cover piece 3 can have local upward movement with push rod 2 and elastic compression seat 8 unavoidably, the height of above-mentioned open slot 111a sidewall 111b provides higher than the height of fastening limit 332 horizontal parts the space that allows this above-mentioned motion, avoids it to deviate from open slot 111a.
The utlity model has the advantage that structure is more firm, motion is more stable, cooperation is compacter.
Claims (6)
1. the signal induction device of an exhaust gas recirculation valve, comprise housing, in housing, be provided with valve pocket and the induction installation chamber of mutual conducting, induction installation is provided with push rod in chamber, push rod one end can be along ejector rob axis to being slidably arranged in induction installation chamber, the push rod other end stretches out outside induction installation chamber and is arranged in valve pocket, one end that push rod is positioned at valve pocket is arranged with cover piece, in induction installation chamber, be also provided with push rod return unit, magnet steel, wiring board and Hall element, wiring board and Hall element are fixedly installed on the sidewall position relative with magnet steel, induction installation chamber, one end that push rod is positioned at induction installation chamber offers the mounting groove that holds magnet steel, in mounting groove, be also provided with magnetic steel sleeve, magnet steel is embedded in magnetic steel sleeve, it is characterized in that: in described valve pocket, be also provided with the elastic compression seat towards described push rod center position extruding by described upper cover piece, described upper cover piece comprises cover plate, side plate and base plate, described base plate is extended outwardly and is formed by described side plate, described base plate and described side plate junction form knuckle, described knuckle is being pushed in the end of described elastic compression seat.
2. the signal induction device of exhaust gas recirculation valve according to claim 1, it is characterized in that: described cover plate is provided with boss towards the inwall in described induction installation chamber, on described boss, offer the through hole passing for described push rod, described through hole runs through described cover plate.
3. the signal induction device of exhaust gas recirculation valve according to claim 2, it is characterized in that: described through-hole diameter is less than described push rod diameter, one end that described push rod is positioned at described valve pocket comprises cardinal extremity, and the elongated end being extended towards described valve pocket direction by cardinal extremity, described elongated end has the diameter coordinating with described through-hole diameter, and the outer wall of described elongated end and the outer wall of described cardinal extremity are connected to form step confined planes.
4. the signal induction device of exhaust gas recirculation valve according to claim 3, is characterized in that: described step confined planes is inner concave arc surface setting, and the through-hole wall of described boss has the convex globoidal coordinating with described inner concave arc surface towards the end of described cardinal extremity.
5. the signal induction device of exhaust gas recirculation valve according to claim 1, it is characterized in that: described base plate comprise extended outwardly by described side plate along limit, the described other end being relatively connected with described side plate along limit is extended with L shaped fastening limit, described induction installation chamber offers the open slot being embedded for described fastening limit towards the outer face of the sidewall of described valve pocket, the vertical portion on described fastening limit and the described 7 shape flangings that are arranged in described open slot one side channel wall that are connected to form along limit, the horizontal part butt on described fastening limit described open slot opposite side cell wall.
6. the signal induction device of exhaust gas recirculation valve according to claim 5, is characterized in that: the cell wall of a side of the horizontal part butt on described open slot and described fastening limit is higher than the height of described fastening limit horizontal part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320818403.8U CN203629589U (en) | 2013-12-11 | 2013-12-11 | Signal induction device of exhaust gas recirculation valve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320818403.8U CN203629589U (en) | 2013-12-11 | 2013-12-11 | Signal induction device of exhaust gas recirculation valve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203629589U true CN203629589U (en) | 2014-06-04 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320818403.8U Expired - Fee Related CN203629589U (en) | 2013-12-11 | 2013-12-11 | Signal induction device of exhaust gas recirculation valve |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203629589U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715416A (en) * | 2016-04-08 | 2016-06-29 | 浙江银轮机械股份有限公司 | Valve used for exhaust gas recirculation of internal combustion engine |
-
2013
- 2013-12-11 CN CN201320818403.8U patent/CN203629589U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105715416A (en) * | 2016-04-08 | 2016-06-29 | 浙江银轮机械股份有限公司 | Valve used for exhaust gas recirculation of internal combustion engine |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140604 Termination date: 20151211 |
|
| EXPY | Termination of patent right or utility model |