CN1183141A - Connecting lead for a measurement sensor - Google Patents
Connecting lead for a measurement sensor Download PDFInfo
- Publication number
- CN1183141A CN1183141A CN96193551A CN96193551A CN1183141A CN 1183141 A CN1183141 A CN 1183141A CN 96193551 A CN96193551 A CN 96193551A CN 96193551 A CN96193551 A CN 96193551A CN 1183141 A CN1183141 A CN 1183141A
- Authority
- CN
- China
- Prior art keywords
- housing
- cable
- survey sensor
- sheathing
- right cylinder
- 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.)
- Pending
Links
- 238000005259 measurement Methods 0.000 title abstract description 6
- 239000007789 gas Substances 0.000 claims abstract description 25
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 4
- 239000002184 metal Substances 0.000 claims abstract description 4
- 239000001301 oxygen Substances 0.000 claims abstract description 4
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 4
- 238000009413 insulation Methods 0.000 claims description 12
- 239000011148 porous material Substances 0.000 claims description 7
- 230000008676 import Effects 0.000 claims description 3
- 239000000284 extract Substances 0.000 claims description 2
- 210000003953 foreskin Anatomy 0.000 claims description 2
- 230000035515 penetration Effects 0.000 claims description 2
- 229920001343 polytetrafluoroethylene Polymers 0.000 abstract description 7
- 239000004810 polytetrafluoroethylene Substances 0.000 abstract description 7
- 238000002485 combustion reaction Methods 0.000 abstract 1
- 230000001681 protective effect Effects 0.000 description 7
- 239000004809 Teflon Substances 0.000 description 3
- 229920006362 Teflon® Polymers 0.000 description 3
- 239000010985 leather Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- -1 polytetrafluoroethylene Polymers 0.000 description 3
- 239000004215 Carbon black (E152) Substances 0.000 description 2
- 230000002349 favourable effect Effects 0.000 description 2
- 229930195733 hydrocarbon Natural products 0.000 description 2
- 150000002430 hydrocarbons Chemical class 0.000 description 2
- 230000008595 infiltration Effects 0.000 description 2
- 238000001764 infiltration Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 238000001467 acupuncture Methods 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 239000008393 encapsulating agent Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007731 hot pressing Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/4062—Electrical connectors associated therewith
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/403—Cells and electrode assemblies
- G01N27/406—Cells and probes with solid electrolytes
- G01N27/407—Cells and probes with solid electrolytes for investigating or analysing gases
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Health & Medical Sciences (AREA)
- Physics & Mathematics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- Molecular Biology (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Measuring Oxygen Concentration In Cells (AREA)
Abstract
The disclosure relates to a measurement sensor (10) intended in particular for determining the oxygen content in exhaust gases from internal combustion engines. The sensor comprises a sensor element (14) mounted in a metal housing (13, 30) and attached to connecting cables (18) leading out of the housing (13, 30). The cables are enclosed in a cable sheath (12) and a reference atmosphere for the sensor element (14) can be introduced into the housing (13, 30). The cable sheath (12) is provided at least in areas of its outer surface with at least one gas-permeable section through which the reference atmosphere can penetrate into the interior of the cable sheath (12) and from there into the housing (13, 30). A porous PTFE tube is especially suitable as the cable sheath (12).
Description
Technical merit
The present invention relates to a kind of survey sensor according to the independent claims type, this sensor is used in particular for measuring the oxygen content in the engine exhaust gas.
Such as, known from DE-OS 28 05 598 that according to such survey sensor in this sensor, the connection electric wire of drawing is surrounded by sleeve pipe from metal shell.Sleeve pipe is used for, and the reference gas of isolating with splash water and contaminated air is imported in the survey sensor housing as the reference gas body.
In addition, known that from DE-OS 27 02 432 reference gas imports housing by stube cable, here,, always not enough at the cavity that stube cable insulation the inside has for enough reference gases being imported the housing the inside of survey sensor.
Advantage of the present invention
According to the advantage with survey sensor of independent claims feature of the present invention is to be input to reference gas in the housing preferably.Because the sheath area of cable sheathing is bigger, there be ventilative section of cable sheathing of sufficient size to enter in the cable sheathing by enough reference gas bodies.And can enter housing therefrom, can stop simultaneously, humidity or impurity enter housing.Because the surface area ratio of the ventilative section of cable sheathing is bigger, can regulate the very little special perviousness of porosint, it makes, and the critical infiltration of liquid hydrocarbon becomes difficult under other situation.Between cable insulation and cable insulation sleeve pipe, do not need to be tightly connected.
By the measure of introducing in detail in the dependent claims, can take other favourable structure and improve according to stube cable of the present invention.By cable sheathing hot pressing cover is installed on the shell nozzle, can reach cable sheathing with the survey sensor housing in combination favourable aspect the manufacturing technology.Be clamped together by the same clamping ring above cable sheathing of cable insulation sleeve pipe that will be fixed in the opening simultaneously, the installation of survey sensor is further oversimplified.The cable insulation sleeve pipe can advantageously alleviate the pulling force of stube cable simultaneously.
Accompanying drawing
Show embodiments of the invention in the drawings, and in following explanation, be described in detail.Fig. 1 shows the survey sensor that is equipped with according to connection electric wire of the present invention, and Fig. 2 shows the sectional view according to the amplification of Fig. 1.
Embodiment
Fig. 1 shows survey sensor 10, such as a λ-sensor has a housing 13, and sensing element 14 is fixed in the housing hermetically.Survey sensor 10 connects with an electric wire of being made up of ventilative cable sheathing 12 11 that is connected, and the stube cable 18 that is used for sensing element 14 is at foreskin.Housing 13 has one section 15 and has one section 16 being connected side in the measurement gas side.According to Fig. 2, stube cable 18 has a lead 19 that is surrounded by insulation sleeve 20 respectively.
On this section 15 of the measurement gas side of housing 13, fixed a protection tube 22 that air intake opening and gas outlet 23 are arranged.Protection tube 22 surrounds the sensing element of stretching from housing 13 measurement gas sides 14.In addition, 15 screw thread 24 is arranged in this section of measurement gas side, this is fixed on survey sensor 10 usefulness in the gas outlet that does not illustrate.
Metal coating sleeve pipe 30 by means of a radial loop around weldering meet 31 to be fixed on hermetically on this section 16 of connection side of housing 13.Protective casing 30 surrounds and is connecting the sensing element 14 that side stretches equally and constituted inner chamber 33 from housing 13, be used for the reference gas of the reference electrode that sensing element 14 do not illustrate, such as air is directed in this inner chamber.
Connecting side end, sensing element 14 has the connecting terminal that does not illustrate from figure, and connecting terminal is with contact part 35 contactings.Contact part 35 is placed in one for example to have in the two-part attachment plug 40, and here, two parts of attachment plug 40 are fixed together by the spring part 41 of an annular.By this, contact part 35 is pressed onto on the connecting terminal of the sensing element 14 that does not illustrate in the drawings, and this section in cable side of contact part 35 has a crimp web member 43.Contact part 35 connects (Fig. 2) by means of crimp web member 43 with stube cable 18.
Is one section right cylinder 45 according to Fig. 2 protective casing 30 in the end that connects side, and a hole 46 is arranged, and here, compares with protective casing 30 other parts, and the diameter of right cylinder 45 is less.50 sealings of opening 46 usefulness cable insulating sleeves.Such as cable insulation sleeve pipe 50 usefulness polytetrafluoroethylene (PTFE)s are made, and have corresponding through hole 51 according to the quantity of the stube cable 18 that will pass through.The diameter of through hole 51 is to determine size like this, has constituted a gap 52 between the insulating sheath 20 of stube cable 18 and protective casing 30, and reference gas can arrive the inside of protective casing 30 by this gap.In housing one side, through hole 51 is to design like this, and crimp web member 43 hooks in cable insulation sleeve pipe 50, by the pulling force that can alleviate stube cable 18 that hooks of crimp web member.Such as cable sheathing 12 is polytetrafluoroethylene (PTFE) flexible pipes, and it has an end 56 in plug side, in the survey sensor side end 57 is arranged.The jacket surface of polytetrafluoroethylene (PTFE) has pore, and reference gas can arrive flexible pipe the inside by pore, and pore size is so small, and it has special gas penetration potential, but can stop liquid hydrocarbon critical infiltration in other cases.
This end 57 of the survey sensor side of flexible pipe is set on the right cylinder 45, for example, can carry out like this, takes to heat, and then flexible pipe is hot-pressed onto on the right cylinder 45 of protective casing 30.In addition; above this end 57 of survey sensor side of flexible pipe, move into a clamping ring 59; radially clamp clamping ring by means of a clamping tool; by this; can be clamped together the right cylinder 45 of protective casing 30 with cable insulation sleeve pipe 50 simultaneously; therefore, cable insulation sleeve pipe 50 is fixed in the opening 46.
Can make PTFE-flexible pipe according to the original method of being familiar with by stretching PTFE-material with pore.But imagine that the PTFE-flexible pipe can only stretch at one or more snippets place, like this, only is the pore that has the section of one-tenth along flexible pipe.
Another possibility of making ventilative cable sheathing 12 is, by adopting laser beam or encapsulant being made ventilative by the thinnest mechanical type acupuncture of employing.
When adopting thin, that the have cable sheathing 12 respective surfaces sizes suitable material of wall ratio, can imagine fully, can utilize the oxygen diffusion characteristic of material itself to import reference gas (atmosphere).
Claims (8)
1. survey sensor, especially for the survey sensor of measuring the oxygen content in the engine exhaust gas, has a sensing element that is placed in the metal shell, this sensing element links with stube cable that extract from housing, that wrapped by cable sheathing, here, the reference gas that is used for sensing element can import to housing, it is characterized in that, cable sheathing (12) on the foreskin surface at least in the part scope, have at least one section to breathe freely, make reference gas can arrive cable sheathing (12) the inside, and arrive housing (13,30) the inside therefrom.
2. survey sensor according to claim 1 is characterized in that,
This ventilative section has pore, and reference gas can enter the inside of cable sheathing (12) by pore.
3. according to claim 1 and 2 described survey sensors, it is characterized in that,
Cable sheathing (12) is a PTFE-flexible pipe, and this flexible pipe piecewise at least has gas penetration potential.
4. survey sensor according to claim 1 is characterized in that, housing (13) has one section right cylinder (45), and it has an opening (46), and cable sheathing (12) is located to be connected with housing (30) at right cylinder (45).
5. survey sensor according to claim 4 is characterized in that, cable sheathing (12) is hot-pressed onto on the right cylinder (45).
6. according to claim 4 or 5 described survey sensors, it is characterized in that,
In right cylinder (45) scope of housing (30), on cable sheathing (12), laid a clamping ring (59), the same housing of clamping ring (59) (30) radially is clamped together.
7. according to claim 4 or 5 described survey sensors, it is characterized in that,
Cable sleeve (50) is placed in the opening (46) of right cylinder (45) of housing (30), quantity according to stube cable (18), cable insulation sleeve pipe (50) has the through hole (51) of the respective numbers of axial trend, the cross sectional dimensions in these holes is definite like this, will constitute a gap (52) between stube cable (18) and cable insulation sleeve pipe (50), reference gas can enter into housing (13) by this gap (52).
8. survey sensor according to claim 7 is characterized in that,
Be equipped with the contact part (35) that is used to connect sensing element (14), these contact parts are by means of the same stube cable of crimp web member (43) (18) contacting, the through hole (51) that is used for stube cable is determined size like this in housing one side at least, and crimp web member (43) can hook in through hole (51) separately.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19611572A DE19611572A1 (en) | 1996-03-23 | 1996-03-23 | Connection cable for a sensor |
| DE19611572.8 | 1996-03-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1183141A true CN1183141A (en) | 1998-05-27 |
Family
ID=7789235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN96193551A Pending CN1183141A (en) | 1996-03-23 | 1996-11-20 | Connecting lead for a measurement sensor |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0827590A1 (en) |
| JP (1) | JPH11506216A (en) |
| KR (1) | KR19990014723A (en) |
| CN (1) | CN1183141A (en) |
| DE (1) | DE19611572A1 (en) |
| WO (1) | WO1997036172A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414572A (en) * | 2018-05-24 | 2018-08-17 | 常州联德电子有限公司 | 8 line intelligence nitrogen oxide sensor of chip and packaging method |
Families Citing this family (17)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE19705623C2 (en) * | 1997-02-14 | 2000-01-13 | Bosch Gmbh Robert | Gas sensor |
| WO2002040849A1 (en) * | 2000-11-14 | 2002-05-23 | Robert Bosch Gmbh | Exhaust gas sensor |
| DE10151291B4 (en) * | 2000-11-14 | 2006-08-17 | Robert Bosch Gmbh | gas sensor |
| DE10256649A1 (en) * | 2002-12-03 | 2004-06-24 | Endress + Hauser Conducta Gesellschaft für Mess- und Regeltechnik mbH + Co. KG | Sensor plug head especially for a potentiometric sensor and potentiometric sensor with sensor plug head |
| DE10258614B4 (en) * | 2002-12-16 | 2005-10-27 | Robert Bosch Gmbh | probe |
| DE10327186B4 (en) | 2003-06-17 | 2006-11-30 | Robert Bosch Gmbh | probe |
| DE102005020793B4 (en) | 2005-05-04 | 2021-01-07 | Robert Bosch Gmbh | Gas sensor for determining the physical properties of a gas to be measured |
| DE102008001862A1 (en) | 2008-05-19 | 2009-11-26 | Robert Bosch Gmbh | Gas sensor for determining e.g. concentration of nitrogen oxides in exhaust gas from internal combustion engine, has holder with convex regions of front surface supported at housing edge, which surrounds front side opening of housing |
| DE102008063313A1 (en) * | 2008-12-30 | 2010-07-01 | Morawietz, Jürgen | Screwing device for use in power plant to seal feed-through for round cables in junction boxes against humidity and/or dust, has sealing element deformable by screwing of ring-like parts to seal cable, where parts are formed in two-piece |
| DE102010038778A1 (en) | 2010-08-02 | 2012-02-02 | Robert Bosch Gmbh | Gas sensor for determining concentration or temperature of e.g. nitrogen oxide, in exhaust gas of internal combustion engine, has electrical connection cables bundled in circumferentially insulated cable strand and fixed to each other |
| DE102012201903A1 (en) | 2012-02-09 | 2013-08-14 | Robert Bosch Gmbh | exhaust gas sensor |
| DE102012207762A1 (en) * | 2012-05-09 | 2013-11-14 | Robert Bosch Gmbh | exhaust gas sensor |
| JP6535156B2 (en) | 2014-03-12 | 2019-06-26 | 日本碍子株式会社 | Gas sensor |
| ES2563241B1 (en) * | 2015-07-17 | 2016-12-01 | Francisco Albero, S.A.U | Gas sensor |
| JP2019015507A (en) * | 2017-07-03 | 2019-01-31 | 日本特殊陶業株式会社 | Sensor |
| KR102040826B1 (en) | 2018-04-19 | 2019-11-05 | 한국타이어앤테크놀로지 주식회사 | Tread of Truck and Bus Radial Tire |
| JP6674508B2 (en) * | 2018-08-06 | 2020-04-01 | 日本碍子株式会社 | Gas sensor |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5289989A (en) * | 1976-01-23 | 1977-07-28 | Hitachi Ltd | Oxygen concentration detector |
| US4123131A (en) * | 1977-08-05 | 1978-10-31 | General Motors Corporation | Vented electrical connector |
| DE2805598A1 (en) * | 1978-02-10 | 1979-08-16 | Bbc Brown Boveri & Cie | Electrochemical oxygen sensor for IC engine exhaust gases - has air inlet for protection of solid electrolyte tube |
| US4786399A (en) * | 1987-09-28 | 1988-11-22 | Allied-Signal Inc. | Seal means for isolated grounded O2 sensor |
| US4786397A (en) * | 1987-10-09 | 1988-11-22 | Allied-Signal Inc. | Seal for single wire O2 sensor |
-
1996
- 1996-03-23 DE DE19611572A patent/DE19611572A1/en not_active Withdrawn
- 1996-11-20 JP JP9533911A patent/JPH11506216A/en not_active Ceased
- 1996-11-20 KR KR1019970708065A patent/KR19990014723A/en not_active Application Discontinuation
- 1996-11-20 WO PCT/DE1996/002206 patent/WO1997036172A1/en not_active Application Discontinuation
- 1996-11-20 CN CN96193551A patent/CN1183141A/en active Pending
- 1996-11-20 EP EP96945737A patent/EP0827590A1/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108414572A (en) * | 2018-05-24 | 2018-08-17 | 常州联德电子有限公司 | 8 line intelligence nitrogen oxide sensor of chip and packaging method |
| CN108414572B (en) * | 2018-05-24 | 2024-06-11 | 常州联德电子有限公司 | Chip type 8-wire intelligent nitrogen-oxygen sensor and packaging method |
Also Published As
| Publication number | Publication date |
|---|---|
| WO1997036172A1 (en) | 1997-10-02 |
| KR19990014723A (en) | 1999-02-25 |
| EP0827590A1 (en) | 1998-03-11 |
| DE19611572A1 (en) | 1997-09-25 |
| JPH11506216A (en) | 1999-06-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |