CN108131190A - A kind of miniaturization oxygen sensor used in vehicle - Google Patents
A kind of miniaturization oxygen sensor used in vehicle Download PDFInfo
- Publication number
- CN108131190A CN108131190A CN201810109168.4A CN201810109168A CN108131190A CN 108131190 A CN108131190 A CN 108131190A CN 201810109168 A CN201810109168 A CN 201810109168A CN 108131190 A CN108131190 A CN 108131190A
- Authority
- CN
- China
- Prior art keywords
- counterbore
- chip packet
- chip
- support block
- air
- Prior art date
- 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.)
- Granted
Links
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 39
- 239000001301 oxygen Substances 0.000 title claims abstract description 39
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 39
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 14
- 238000007789 sealing Methods 0.000 claims abstract description 13
- 238000000034 method Methods 0.000 description 8
- 239000007789 gas Substances 0.000 description 6
- 239000000203 mixture Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 239000002912 waste gas Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 238000007906 compression Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000027734 detection of oxygen Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000008246 gaseous mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008450 motivation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N11/00—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity
- F01N11/007—Monitoring or diagnostic devices for exhaust-gas treatment apparatus, e.g. for catalytic activity the diagnostic devices measuring oxygen or air concentration downstream of the exhaust apparatus
-
- 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
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
Abstract
The invention discloses a kind of miniaturization oxygen sensor used in vehicle, including the quick chip of oxygen, chip packet and hexagonal pedestal, the front end of hexagonal pedestal offers air-flow counterbore, the rear end of hexagonal pedestal offers installation counterbore, by interior it is sequentially installed with forward support block, sealing block and aft support block outward inside installation counterbore, the bottom hole for installing counterbore sets that there are one the through-holes for leading to air-flow counterbore；Chip packet is the tubulose of one end open, the openend of chip packet is equipped with flanging, flanging clamp is between the bottom hole of forward support block and installation counterbore, the tubular head of chip packet passes through through-hole and air-flow counterbore to extend out to outside hexagonal pedestal, the tubular head and tube wall of chip packet are equipped with venthole, and the venthole on chip packet tube wall is located in air-flow counterbore, the quick chip of oxygen sequentially passes through aft support block, sealing block, forward support block and extend into chip packet.The configuration of the present invention is simple is compact, it is easy to assembly, engine exhaust resistance can be reduced.
Description
Technical field
The invention mainly relates to oxygen sensor used in vehicle field more particularly to miniaturization oxygen sensor used in vehicle, as motor is automobile-used
Lambda sensor.
Background technology
The course of work of vehicle motor includes intake process, the cylinder interior gas that fresh air enters cylinder from air inlet pipe
The mixture combustion of air-fuel mixture in the compression process that is compressed by pistons, cylinder and push the acting process of piston output power with
And the burning waste gas in cylinder discharges the exhaust of cylinder in burning waste gas from the exhaust process of exhaust pipe discharge cylinder from exhaust pipe
In the process, the clean level that gas exhaust gas inside cylinder excludes influences the burning matter of gaseous mixture in the cylinder in engine working process
Amount, the clean level that the more big then gas exhaust gas inside cylinder of exhaust resistance of discharge duct excludes is lower, and the residual waste gas quantity in cylinder is got over
Greatly, the mixture combustion quality in engine working process is poorer, therefore, dynamic property, economy and the exhaust of vehicle motor
The feature of environmental protection requires that the vent of the exhaust pipe of engine has smaller exhaust resistance.
And for dilly, for motorcycle, the limitation of structure make the size of exhaust pipe by
To limitation.On the other hand, oxygen sensor used in vehicle is a critical component of vehicle engine control system, and lambda sensor is starts
Machine control unit, that is, ECU provides Real-time Feedback signal, so as to allow ECU that engine is controlled the work under best air-fuel mixture concentration
Make, ensure the dynamic property, economy and exhausting environmental protection of engine.Lambda sensor is mounted on the exhaust pipe of engine, and oxygen passes
Sensor head reaches the oxygen content of detection engine exhaust in the duct of the exhaust pipe of engine so as to export feedback signal, oxygen sensing
Device head reaches the accuracy that depth enough in exhaust pipe duct just can guarantee feedback signal, and therefore, lambda sensor can not be kept away
It occupies the grate flow channel section of a part of exhaust pipe of engine with exempting from, increases the exhaust resistance of engine.
Fig. 1 show the structure sectional view that a kind of lambda sensor of the prior art is installed on motorcycle, includes in figure
Exhaust pipe of motorcycle engine 1., oxygen sensor chip outer cover 2., oxygen sensor chip inner cover 3., lambda sensor internal washer
4. 2. 3. oxygen sensor chip outer cover is fixed by welding in oxygen sensor chip inner cover on the hexagonal pedestal of lambda sensor,
2. 3. oxygen sensor chip outer cover occupies larger with oxygen sensor chip inner cover in exhaust pipe of motorcycle engine duct 1.
Overflow section, the exhaust resistance for making motorcycle engine is larger.
Invention content
The technical problem to be solved in the present invention is：In view of the deficienciess of the prior art, it provides a kind of simple in structure tight
It gathers, is easy to assembly, the miniaturization oxygen sensor used in vehicle of engine exhaust resistance can be reduced.
In order to solve the above technical problems, the present invention uses following technical scheme：
A kind of miniaturization oxygen sensor used in vehicle, including the quick chip of oxygen, chip packet and hexagonal pedestal, before the hexagonal pedestal
End offers air-flow counterbore, and the rear end of the hexagonal pedestal offers installation counterbore, inside the installation counterbore by it is interior outward according to
Secondary to be equipped with forward support block, sealing block and aft support block, the bottom hole of the installation counterbore sets that there are one lead to the logical of air-flow counterbore
Hole；The chip packet is the tubulose of one end open, and the openend of the chip packet is equipped with flanging, and the flanging clamp is in forward support block
Between bottom hole with installing counterbore, the tubular head of the chip packet passes through the through-hole and air-flow counterbore to extend out to hexagonal pedestal
Outside, the tubular head of the chip packet and tube wall are equipped with venthole, and the venthole on chip packet tube wall is located at the air-flow
In counterbore, the quick chip of oxygen sequentially passes through aft support block, sealing block, forward support block and extend into chip packet.
Further, the outer rim of the flanging tilts to form elastic piece.
Further, the peritreme of the installation counterbore, which inwardly closes up, is riveted aft support block, and aft support block is generated one by riveting
A axial force for pressing to sealing block.
Compared with prior art, the advantage of the invention is that：
1st, the present invention eliminates the chip outer cover and internal washer of conventional oxygen sensor in structure, and structure is simpler tight
It gathers；The welding of chip packet is eliminated in technique, and in a manner that in chip packet openend, flanging is set, chip packet is direct
It is clamped on hexagonal pedestal, assembly technology is more convenient；By opening up air-flow counterbore in the front end of hexagonal pedestal, make the one of chip packet
It is partially received in air-flow counterbore, correspondingly just reduces occupied space and overflow section of the chip packet in the exhaust pipe of engine
Product, reduces the exhaust resistance of engine；The venthole on chip packet tube wall is located in air-flow counterbore simultaneously, engine exhaust according to
Venthole on secondary air-flow counterbore and chip packet tube wall by hexagonal pedestal enters inside chip packet, realizes the quick chip of oxygen to hair
The detection of oxygen content in motivation exhaust gas.
2nd, the present invention further tilts the outer rim of chip packet flanging to form elastic piece, and elastic piece is in the extruding of forward support block
Under deform upon and generate elasticity tension, not only improved the axial seal performance of sealing block, but also make the installation of chip packet more firm.
Description of the drawings
Fig. 1 is mounting structure sectional view of the lambda sensor of the prior art on exhaust pipe of motorcycle engine.
Fig. 2 is the structure sectional view of the present invention.
Fig. 3 is the enlarged structure schematic diagram at A in Fig. 2.
Marginal data：1., exhaust pipe of motorcycle engine；2., oxygen sensor chip outer cover；3., in oxygen sensor chip
Cover；4., lambda sensor internal washer；1st, chip packet；2nd, the quick chip of oxygen；3rd, hexagonal pedestal；4th, sealing block；5th, aft support block；6、
Forward support block；101st, venthole；102nd, flanging；301st, air-flow counterbore.
Specific embodiment
The present invention is described in further detail below in conjunction with the drawings and specific embodiments, it is noted that guarantor of the invention
Shield range is not limited merely to following embodiments, without departing from the principle of the present invention, to any made by the present invention
Improvements and modifications are regarded as protection scope of the present invention.
As shown in Figure 2 and Figure 3, miniaturization oxygen sensor used in vehicle of the invention, including the quick chip 2 of oxygen, chip packet 1 and hexagonal
Pedestal 3, the front end of hexagonal pedestal 3 offer air-flow counterbore 301, and the rear end of hexagonal pedestal 3 offers installation counterbore, installs counterbore
Inside is sequentially installed with forward support block 6, sealing block 4 and aft support block 5 outward by interior, and the bottom hole for installing counterbore is set there are one leading to
The through-hole of air-flow counterbore 301；Chip packet 1 is the tubulose of one end open, and the openend of chip packet 1 is equipped with flanging 102, flanging 102
It is clipped between forward support block 6 and the bottom hole for installing counterbore, the tubular head of chip packet 1 passes through through-hole and air-flow counterbore 301 to stretch out
To outside hexagonal pedestal 3, the tubular head and tube wall of chip packet 1 are equipped with venthole 101, and the venthole on 1 tube wall of chip packet
101 are located in air-flow counterbore 301.The quick chip 2 of oxygen sequentially passes through aft support block 5, sealing block 4, forward support block 6 and extend into chip packet
In 1, there are gaps between the front end of the quick chip 2 of oxygen and the inner cavity wall surface of chip packet 1.
The present invention eliminates the chip outer cover and internal washer of conventional oxygen sensor in structure, and structure is simpler tight
It gathers；The welding of chip packet 1 is eliminated in technique, and in a manner that in 1 openend of chip packet, flanging 102 is set, by chip
Cover 1 is directly clamped on hexagonal pedestal 3, and assembly technology is more convenient；By opening up air-flow counterbore 301 in the front end of hexagonal pedestal 3,
A part for chip packet 1 is made to be contained in air-flow counterbore 301, correspondingly just reduces chip packet 1 in the exhaust pipe of engine
Occupied space and overflow section product, reduce the exhaust resistance of engine；The venthole 101 on 1 tube wall of chip packet is located at simultaneously
In air-flow counterbore 301, engine exhaust can pass sequentially through air-flow counterbore 301, venthole 101 enters inside chip packet 1, not influence
The quick chip 2 of oxygen detects the oxygen content of engine exhaust.
In the present embodiment, inside close up of peritreme for installing counterbore is riveted aft support block 5, and aft support block 5 is generated by riveting
One axial force for pressing to sealing block 4 and forward support block 6.Further, the outer rim of 1 flanging 102 of chip packet tilts to form elastic piece,
Elastic piece may act as the effect of internal washer in traditional lambda sensor, and elastic piece deforms upon under the extruding of forward support block 6
Elasticity tension is generated, can not only improve the axial seal performance of sealing block 4, but also the installation of chip packet 1 can be made more firm.
Claims (4)
1. a kind of miniaturization oxygen sensor used in vehicle, including the quick chip of oxygen, chip packet and hexagonal pedestal, it is characterised in that：Described six
The front end of angle pedestal offers air-flow counterbore, and the rear end of the hexagonal pedestal offers installation counterbore, the hexagonal pedestal installation
It is sequentially installed with forward support block, sealing block and aft support block, the hole of the hexagonal pedestal installation counterbore outward by interior inside counterbore
Bottom sets that there are one lead to the through-hole of air-flow counterbore；The chip packet is the tubulose of one end open, and the openend of the chip packet is set
Have a flanging, the flanging clamp of the chip packet between the bottom hole of forward support block and hexagonal pedestal installation counterbore, the chip packet
Tubular head passes through the hexagonal susceptor through-holes and air-flow counterbore to extend out to outside hexagonal pedestal, the tubular head of the chip packet and
Tube wall is equipped with venthole, and the venthole on chip packet tube wall is located in the hexagonal pedestal air-flow counterbore, the quick core of oxygen
Piece sequentially passes through aft support block, sealing block and forward support block and extend into chip packet.
2. miniaturization oxygen sensor used in vehicle according to claim 1, it is characterised in that：The openend of the chip packet is equipped with
Flanging, the outer rim of the chip packet flanging tilt to form elastic piece, and the chip packet flanging clamp is in forward support block and hexagonal pedestal
Between the bottom hole for installing counterbore.
3. miniaturization oxygen sensor used in vehicle according to claim 1, it is characterised in that：The tubular head of the chip packet is worn
It crosses the hexagonal susceptor through-holes and air-flow counterbore is extend out to outside hexagonal pedestal.
4. miniaturization oxygen sensor used in vehicle according to claim 1, it is characterised in that：Venthole position on chip packet tube wall
In in the hexagonal pedestal air-flow counterbore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810109168.4A CN108131190B (en) | 2018-02-01 | 2018-02-01 | Miniaturized vehicular oxygen sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810109168.4A CN108131190B (en) | 2018-02-01 | 2018-02-01 | Miniaturized vehicular oxygen sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108131190A true CN108131190A (en) | 2018-06-08 |
| CN108131190B CN108131190B (en) | 2024-01-02 |
Family
ID=62430441
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810109168.4A Active CN108131190B (en) | 2018-02-01 | 2018-02-01 | Miniaturized vehicular oxygen sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108131190B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1523010A (en) * | 1975-06-13 | 1978-08-31 | Nissan Motor | Exhaust gas compound sensor |
| JPH06235714A (en) * | 1993-02-10 | 1994-08-23 | Nippondenso Co Ltd | Oxygen sensor for exhaust gas from internal-combustion engine |
| US20080073209A1 (en) * | 2006-09-21 | 2008-03-27 | Denso Corporation | Gas sensor |
| JP2009058364A (en) * | 2007-08-31 | 2009-03-19 | Denso Corp | Gas sensor |
| WO2015163394A1 (en) * | 2014-04-25 | 2015-10-29 | 株式会社デンソー | Gas sensor |
| CN207864034U (en) * | 2018-02-01 | 2018-09-14 | 肇庆学院 | A kind of miniaturization oxygen sensor used in vehicle |
-
2018
- 2018-02-01 CN CN201810109168.4A patent/CN108131190B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1523010A (en) * | 1975-06-13 | 1978-08-31 | Nissan Motor | Exhaust gas compound sensor |
| JPH06235714A (en) * | 1993-02-10 | 1994-08-23 | Nippondenso Co Ltd | Oxygen sensor for exhaust gas from internal-combustion engine |
| US20080073209A1 (en) * | 2006-09-21 | 2008-03-27 | Denso Corporation | Gas sensor |
| JP2009058364A (en) * | 2007-08-31 | 2009-03-19 | Denso Corp | Gas sensor |
| WO2015163394A1 (en) * | 2014-04-25 | 2015-10-29 | 株式会社デンソー | Gas sensor |
| CN207864034U (en) * | 2018-02-01 | 2018-09-14 | 肇庆学院 | A kind of miniaturization oxygen sensor used in vehicle |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108131190B (en) | 2024-01-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207864034U (en) | A kind of miniaturization oxygen sensor used in vehicle | |
| CN108131190A (en) | A kind of miniaturization oxygen sensor used in vehicle | |
| CN209510418U (en) | A kind of high-power natural gas engine crankcase exhaust ventilation structure | |
| CN206753708U (en) | Tail throat for vehicle exhaust pipe | |
| CN207892729U (en) | Carbon dust separating device | |
| CN207315530U (en) | A kind of automobile engine cylinder-body | |
| CN201377346Y (en) | Oil-gas separation structure of engine cylinder head cover | |
| CN106870093A (en) | Tail throat for vehicle exhaust pipe | |
| CN107387201A (en) | It is vented sympathetic response type silencer and its motorcycle | |
| CN203796458U (en) | Air intake manifold for supercharging multi-point injection four-cylinder gasoline engine | |
| CN206917703U (en) | A kind of automobile catalytic muffler assembly | |
| CN109469531A (en) | A kind of oil-gas separator for ventilation system of crank case assembly and vehicle | |
| CN207229270U (en) | Air cleaner | |
| CN202611839U (en) | Air thermal insulation cooling device of silencer | |
| CN206092122U (en) | Novel silencer is used to agricultural vehicle | |
| CN201053365Y (en) | Engine inlet manifold | |
| CN210396856U (en) | Silencer device for diesel vehicle | |
| CN212656873U (en) | Negative pressure oil-gas separator | |
| CN218493762U (en) | Amortization pad and automobile electric vacuum pump amortization structure | |
| CN2866840Y (en) | Motorcycle engine crankcase fuel-air separator | |
| CN215761966U (en) | Valve chamber cover with PCV valve | |
| CN215830566U (en) | Crankcase forced ventilation valve for improving NVH performance | |
| CN207554152U (en) | Sympathetic response type silencer and its motorcycle | |
| CN215213709U (en) | Cylinder head cover of small gasoline engine | |
| JPS5928117Y2 (en) | Air cleaner for small engines |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |