CN206876676U - A kind of wide area type lambda sensor encapsulating structure - Google Patents
A kind of wide area type lambda sensor encapsulating structure Download PDFInfo
- Publication number
- CN206876676U CN206876676U CN201720734986.4U CN201720734986U CN206876676U CN 206876676 U CN206876676 U CN 206876676U CN 201720734986 U CN201720734986 U CN 201720734986U CN 206876676 U CN206876676 U CN 206876676U
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- China
- Prior art keywords
- porcelain piece
- pedestal
- hole
- sensing element
- wide area
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- 229910052573 porcelain Inorganic materials 0.000 claims abstract description 79
- 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 52
- 235000012459 muffins Nutrition 0.000 claims abstract description 24
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 claims abstract description 23
- 229910052731 fluorine Inorganic materials 0.000 claims abstract description 23
- 239000011737 fluorine Substances 0.000 claims abstract description 23
- 238000007789 sealing Methods 0.000 claims abstract description 23
- 238000009413 insulation Methods 0.000 claims description 21
- 238000009434 installation Methods 0.000 abstract description 5
- 230000007717 exclusion Effects 0.000 abstract description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 3
- 238000006073 displacement reaction Methods 0.000 abstract description 2
- 239000007789 gas Substances 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- 239000000919 ceramic Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000006757 chemical reactions by type Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000004575 stone Substances 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
Abstract
A kind of wide area type lambda sensor is the utility model is related to, more particularly, to a kind of wide area type lambda sensor encapsulating structure.The wide area type lambda sensor encapsulating structure, including pedestal, sleeve, four hole fluorine plugs, shield and sensing element, the first porcelain piece and the second porcelain piece are provided between sensing element cylindrical wall and base internal wall, polylith sealing muffin is folded between the first porcelain piece and the opposing end surface of the second porcelain piece.By the way that pedestal inner chamber is designed into two-part shoulder hole, structure is compacter, easier for installation；Locking member is set outside the second porcelain piece rear axle, the second porcelain piece is compressed by locking member so that sealing muffin installation is more close；Pellicle is provided with passage on four hole fluorine plugs, the air of the vehicle exhaust and outside entered in epicoele is carried out circulation displacement, it is ensured that the pure property of gas of upper intracavitary, and pellicle energy exclusion of water enters upper intracavitary so as to protect each element in epicoele.
Description
Technical field
A kind of potentiometric oxygen sensor is the utility model is related to, encapsulates and ties more particularly, to a kind of wide area type lambda sensor
Structure.
Background technology
At present, the laws and regulations requirement of vehicular emission is more and more stricter, therefore the electric injection system of closed-loop control will turn into main flow,
Oxidation sensors are elements essential on modern closed loop reaction type automobile, it may be said that the quality of oxidation sensors directly affects
The composition of engine exhaust emission.Chip oxygen sensor complex manufacturing technology common at present, cost of manufacture is high, sensor
Sensitivity is relatively low.
The sensing element of existing potentiometric oxygen sensor is by front end ceramic member and rear end ceramic member and the sealing muffin of centre
Sealing is fixed on pedestal inner chamber, and because lambda sensor sealing is not sufficiently good, vehicle exhaust is easily scurried into epicoele, is caused
Vehicle exhaust is mixed into the air of chamber causes lambda sensor precision to weaken, or even failure.
Utility model content
To solve problem above, the utility model provides a kind of wide area type lambda sensor encapsulating structure, and the wide area type oxygen passes
Sensor encapsulating structure is compact-sized, simple and testing result is accurate..
The technical solution adopted in the utility model is：A kind of wide area type lambda sensor encapsulating structure, including pedestal, be arranged on
The sleeve of pedestal rear end, the four hole fluorine plugs for being arranged on sleeve rear end, it is arranged on the shield of pedestal front end and is arranged in pedestal
Sensing element, it is characterised in that：The sensing element front end is extend into shield through pedestal, and the four holes fluorine plug bottom is with passing
Feel and be provided with four hole insulation sleeves, the second chip porcelain piece and the first chip porcelain piece, the second chip porcelain piece and first between first rear end
Chip porcelain piece is arranged between four hole insulation sleeves and sensing element rear end, is set between four hole insulation sleeve and four hole fluorine plug bottoms
There is bellows, the four holes fluorine plug is fixed on one end of bellows by small latch fitting, and the other end of the bellows is in
Latch fitting is connected with sleeve rear end, and four hole insulation sleeves are fixed in sleeve；
The first porcelain piece and the second porcelain piece, first porcelain piece and are provided between the sensing element cylindrical wall and base internal wall
Polylith sealing muffin is folded between the opposing end surface of two porcelain pieces, the polylith sealing muffin is set on sensing element, cylindrical
The tail gas through hole that face is passed through with base internal wall using interference fit, the shield provided with some steam supply tail gas, described four
Hole fluorine plug is provided with passage, and pellicle is provided with the passage.
Preferably, second porcelain piece is T-shaped shaft-like, the diameter of rear axle is more than the diameter of front end axle, described second
The rear end outer shaft sleeve of porcelain piece is provided with locking member, and the locking member inner face is fitted in the axial end of rear end, second porcelain piece
Front end axle, which is extend into pedestal, to be resisted against on sealing muffin end face, and the flange surface of second porcelain piece is resisted against pedestal rear end face
On, the two sides of disc and locking member use screw threads for fastening on the outside of the pedestal rear end.
Preferably, the pedestal uses hexagonal pedestal, the pedestal inner chamber uses two-part shoulder hole, respectively internal diameter
The preceding sector hole and rear sector hole gradually increased, the first porcelain piece end face is resisted against on the flange surface of preceding sector hole and rear sector hole, described
Sealing muffin and the second porcelain piece front end axle are arranged on rear sector hole, and locking member is in outside sector hole after the second porcelain piece rear axle is stretched out
It is interior.
Preferably, being provided with Spring Card between four hole insulation sleeve and sensing element rear end, the Spring Card sequentially passes through
Second chip porcelain piece and the first chip porcelain piece, one end are connected with four hole insulation sleeves, and the other end is connected with sensing element；Described second
Formula porcelain piece and the first chip porcelain piece are fixed by latch fitting.
The utility model obtain beneficial effect be：By the way that pedestal inner chamber is designed into two-part shoulder hole, structure is more
It is compact, it is easier for installation；Seal muffin to be arranged in less preceding sector hole, reduce the sectional area of sealing muffin so that close
It is higher to seal reliability；Locking member is set outside the second porcelain piece rear axle, the second porcelain piece is compressed by locking member so that sealing muffin
Installation is more close；By the way that sealing muffin is designed as into multi-block structure so that better tightness；Ventilation on four hole fluorine plugs
Pellicle is provided with hole, the air of the vehicle exhaust and outside entered in epicoele is carried out circulation displacement, it is ensured that the gas of upper intracavitary
The pure property of body, and pellicle energy exclusion of water enters upper intracavitary so as to protect each element in epicoele.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model；
Fig. 2 is the top view of four hole fluorine plugs；
Fig. 3 is the sectional view of four hole fluorine plugs.
Embodiment
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings.
As shown in figure 1, a kind of wide area type lambda sensor encapsulating structure of the present utility model, including pedestal 1, sleeve 2, four holes
Fluorine plug 3 (being arranged with wire base in four hole fluorine plugs), shield 4, sensing element 5, porcelain piece (the first porcelain piece 61, the second porcelain piece 62,
First chip porcelain piece 63 and the second chip porcelain piece 64) and sealing muffin 7 (using multi-block build stack structure, the present embodiment use two
Block sealing muffin is of heap of stone to be stacked), it is cavity structure that pedestal 1 is interior, and sensing element 5 is pacified by the first porcelain piece 61 and the second porcelain piece 62
In the cavity of pedestal 1, sleeve 2 is arranged on the rear end of pedestal 1, by the first chip porcelain piece 63, the second chip porcelain piece 64, the second porcelain
Inside, four hole fluorine plugs 3 are arranged on the rear end of sleeve 2, sleeve for 8 sets of the rearward end of part 62, the rear end of sensing element 5 and four hole insulation sleeves
2 front end is fixed on the flange surface of pedestal 1, and the rear end of sleeve 2 is fixed with small latch fitting 101, before shield 4 is arranged on pedestal 1
End, by the front end sleeve of sensing element 5 inside.
The front end of sensing element 5 is extend into shield 4 through pedestal 1, is set between the bottom of four hole fluorine plug 3 and the rear end of sensing element 5
There are four hole insulation sleeves 8, the second chip porcelain piece 64 and the first chip porcelain piece 63, the second chip porcelain piece 64 and the first chip porcelain piece 63 are set
Put between four hole insulation sleeves 8 and the rear end of sensing element 5, bellows is provided between four hole insulation sleeves 8 and the bottom of four hole fluorine plug 3
11, four hole fluorine plugs 3 are fixed on one end of bellows 11 by small latch fitting 101, and the other end of bellows 11 passes through middle latch fitting 102
It is connected with the rear end of sleeve 2, four hole insulation sleeves 8 is fixed in sleeve 2, the second chip porcelain piece 64, the first chip porcelain piece 63 and four
Hole insulation sleeve 9 drives bellows 11 and external component insulation, prevents the interference of external signal or part to testing result, bellows
11 be hose construction so that lambda sensor assembles more convenient with other parts；Between the cylindrical wall of sensing element 5 and the inwall of pedestal 1
Provided with the first porcelain piece 61 and the second porcelain piece 62, polylith sealing is folded between the opposing end surface of the first porcelain piece 61 and the second porcelain piece 62
Muffin 7, polylith sealing muffin 7 are set on sensing element 5, and periphery is with the inwall of pedestal 1 using interference fit；On shield 4
The tail gas through hole 41 passed through provided with some steam supply tail gas, with reference to shown in Fig. 2-3, four hole fluorine plugs 3 are provided with passage 31,
Be provided with pellicle 32 in passage 31, pellicle 32 makes the air of vehicle exhaust and outside into epicoele carry out circulation to put
Change, it is ensured that the pure property of gas of upper intracavitary, and the energy exclusion of water of pellicle 32 enters upper intracavitary so as to protect each element in epicoele.
Spring Card 9 is provided between four hole insulation sleeves 8 and the rear end of sensing element 5, Spring Card 9 sequentially passes through the second chip porcelain piece 64
With the first chip porcelain piece 63, one end is connected with four hole insulation sleeves 8, and the other end is connected with sensing element 5；Second chip porcelain piece 64 and
Single piece type porcelain piece 63 is fixed by latch fitting 103.Spring Card 9 is advantageous to the rear end of sensing element 5 and keeps good with the electrode of four hole fluorine plug 3
Contact.
Second porcelain piece 62 of the present embodiment is T-shaped shaft-like, and the diameter of rear axle 622 is more than the diameter of front end axle 621, second
Locking member 104 is arranged with outside the rear axle 622 of porcelain piece 62, the inner face of locking member 104 is fitted on the end face of rear axle 622,
The front end axle 621 of second porcelain piece 62, which is extend into pedestal 1, to be resisted against on sealing muffin 7 end face, and the flange surface of the second porcelain piece 62 supports
Lean against on the rear end face of pedestal 1, the two sides of disc and locking member 8 use screw threads for fastening on the outside of the rear end of pedestal 1.
The pedestal 1 of the present embodiment uses hexagonal pedestal, and the inner chamber of pedestal 1 uses two-part shoulder hole, and respectively internal diameter is gradual
The preceding sector hole 11 and rear sector hole 12 of increase, the end face of the first porcelain piece 61 is resisted against on the flange surface of preceding sector hole 11 and rear sector hole 12, close
The front end axle 621 of 7 and second porcelain piece of envelope muffin 62 is arranged on rear sector hole 12, sector hole 12 after the rear axle 622 of the second porcelain piece 62 is stretched out
Outside in locking member 104, the rear end of sensing element 5 is connected through the through hole on the end face of locking member 104 with the first chip porcelain piece 63,
Locking member 104 compresses the second porcelain piece 62, further compresses sealing muffin 7, improves sealing.Seal muffin 7 be arranged on internal diameter compared with
In small rear sector hole 12, the sealed section product of less sealing muffin 7 so that better tightness；The inner chamber of pedestal 1 uses two sections
Formula shoulder hole so that installation positioning is more convenient.
Claims (4)
1. a kind of wide area type lambda sensor encapsulating structure, including pedestal (1), it is arranged on the sleeve of pedestal (1) rear end, is arranged on set
Four hole fluorine plugs (3) of tube rear end, the sensing element (5) for being arranged on the shield (4) of pedestal (1) front end and being arranged in pedestal (1),
It is characterized in that：Sensing element (5) front end is extend into shield (4) through pedestal (1), four holes fluorine plug (3) bottom
Four hole insulation sleeves (8), the second chip porcelain piece (64) and the first chip porcelain piece (63) are provided between sensing element (5) rear end, it is described
Second chip porcelain piece (64) and the first chip porcelain piece (63) are arranged between four hole insulation sleeves (8) and sensing element (5) rear end, described
Bellows (11) is provided between four hole insulation sleeves (8) and four hole fluorine plug (3) bottoms, the four holes fluorine plug (3) passes through small lock
Part (101) is fixed on one end of bellows (11), and the other end of the bellows (11) passes through middle latch fitting (102) and sleeve (2)
Rear end is connected, and four hole insulation sleeves (8) are fixed in sleeve (2)；
It is provided with the first porcelain piece (61) and the second porcelain piece (62) between sensing element (5) cylindrical wall and pedestal (1) inwall, described
Polylith sealing muffin (7) is folded between the opposing end surface of one porcelain piece (61) and the second porcelain piece (62), the polylith seals muffin
(7) it is set on sensing element (5), periphery is with pedestal (1) inwall using being interference fitted, and the shield (4) is if be provided with
The tail gas through hole (41) that dry steam supply tail gas passes through, the four holes fluorine plug (3) are provided with passage (31), the passage
(31) pellicle (32) is provided with.
2. wide area type lambda sensor encapsulating structure according to claim 1, it is characterised in that：Second porcelain piece (62) is
T-shaped shaft-like, the diameter of rear axle (622) are more than the diameter of front end axle (621), the rear axle (622) of second porcelain piece (62)
Locking member (104) is arranged with outside, locking member (104) inner face is fitted on rear axle (622) end face, second porcelain piece
(62) front end axle (621), which is extend into pedestal (1), to be resisted against on sealing muffin (7) end face, second porcelain piece (62) it is convex
Edge face is resisted against on pedestal (1) rear end face, and the two sides of disc and locking member (104) use spiral shell on the outside of pedestal (1) rear end
Line fastens.
3. wide area type lambda sensor encapsulating structure according to claim 2, it is characterised in that：The pedestal (1) uses six
Angle pedestal, pedestal (1) inner chamber use two-part shoulder hole, the preceding sector hole (11) and rear sector hole that respectively internal diameter gradually increases
(12), the first porcelain piece (61) end face is resisted against on the flange surface of preceding sector hole (11) and rear sector hole (12), the sealing muffin
(7) and the second porcelain piece (62) front end axle (621) is arranged on rear sector hole (12), and the second porcelain piece (62) rear axle (622) is stretched out
Sector hole (12) is interior in locking member (104) outside afterwards.
4. the wide area type lambda sensor encapsulating structure according to claim 1 or 2 or 3, it is characterised in that：The four holes insulation
Set is provided with Spring Card (9) between (8) and sensing element (5) rear end, the Spring Card (9) sequentially pass through the second chip porcelain piece (62) and
First chip porcelain piece (61), one end are connected with four hole insulation sleeves (8), and the other end is connected with sensing element (5)；The second chip porcelain
Part (64) and the first chip porcelain piece (63) are fixed by latch fitting (103).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720734986.4U CN206876676U (en) | 2017-06-22 | 2017-06-22 | A kind of wide area type lambda sensor encapsulating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720734986.4U CN206876676U (en) | 2017-06-22 | 2017-06-22 | A kind of wide area type lambda sensor encapsulating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206876676U true CN206876676U (en) | 2018-01-12 |
Family
ID=61334468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720734986.4U Active CN206876676U (en) | 2017-06-22 | 2017-06-22 | A kind of wide area type lambda sensor encapsulating structure |
Country Status (1)
| Country | Link |
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| CN (1) | CN206876676U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113884622A (en) * | 2021-09-17 | 2022-01-04 | 煤炭科学技术研究院有限公司 | Protective air chamber structure for sensitive element of mining sensor |
-
2017
- 2017-06-22 CN CN201720734986.4U patent/CN206876676U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113884622A (en) * | 2021-09-17 | 2022-01-04 | 煤炭科学技术研究院有限公司 | Protective air chamber structure for sensitive element of mining sensor |
| CN113884622B (en) * | 2021-09-17 | 2023-11-10 | 煤炭科学技术研究院有限公司 | Protective air chamber structure of sensitive element of mining sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230926 Address after: 430058 Hubei Cultural and Creative Technology Enterprise Incubator (Collection WCKJ-C2205) on 22MB plot in Wuhan Economic and Technological Development Zone, Hubei Province Patentee after: Borui Intelligent Technology (Wuhan) Co.,Ltd. Address before: 430056 Changhua Industrial Park, the fourth northwest Hu Road, Wuhan Economic and Technological Development Zone, Hubei Province Patentee before: WUHAN ZIRCONIA ELECTRONIC TECHNOLOGY CO.,LTD. |
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| TR01 | Transfer of patent right |