CN213181458U - High-temperature-resistant stable wide-range oxygen sensor - Google Patents
High-temperature-resistant stable wide-range oxygen sensor Download PDFInfo
- Publication number
- CN213181458U CN213181458U CN202021667985.0U CN202021667985U CN213181458U CN 213181458 U CN213181458 U CN 213181458U CN 202021667985 U CN202021667985 U CN 202021667985U CN 213181458 U CN213181458 U CN 213181458U
- Authority
- CN
- China
- Prior art keywords
- protection tube
- oxygen sensor
- high temperature
- inner protection
- connecting seat
- 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.)
- Expired - Fee Related
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 239000001301 oxygen Substances 0.000 title claims abstract description 60
- 229910052760 oxygen Inorganic materials 0.000 title claims abstract description 60
- 230000008054 signal transmission Effects 0.000 claims abstract description 9
- 239000012774 insulation material Substances 0.000 claims abstract description 6
- 238000009413 insulation Methods 0.000 claims description 7
- 239000000919 ceramic Substances 0.000 claims description 6
- 229910000838 Al alloy Inorganic materials 0.000 claims description 4
- 229920000742 Cotton Polymers 0.000 claims description 3
- 239000000835 fiber Substances 0.000 claims description 3
- 238000005259 measurement Methods 0.000 abstract description 5
- 239000007789 gas Substances 0.000 abstract description 4
- 208000034189 Sclerosis Diseases 0.000 abstract description 3
- 230000032683 aging Effects 0.000 abstract description 3
- 238000005452 bending Methods 0.000 abstract description 3
- 239000000446 fuel Substances 0.000 description 6
- 239000011810 insulating material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000002347 injection Methods 0.000 description 2
- 239000007924 injection Substances 0.000 description 2
- 230000005855 radiation Effects 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 210000002569 neuron Anatomy 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Landscapes
- Measuring Oxygen Concentration In Cells (AREA)
Abstract
The utility model discloses a high temperature resistant stable state wide region oxygen sensor, oxygen sensor embeds there is high temperature stable state oxygen sensor chip, the inside of outer protection tube is located to the inner protection tube, oxygen sensor's one end is connected with the one end of inner protection tube, the one end that oxygen sensor is close to the inner protection tube is equipped with a plurality of connecting wires, it has thermal insulation material to fill between inner protection tube and the outer protection tube, the jump ring inslot is equipped with the jump ring, screw thread portion threaded connection has the back connecting seat, the rear end of connecting seat is pegged graft and is had first binding post. The utility model discloses an oxygen sensor is to the oxygen content measurement in the gas under to high temperature environment, and the inside each through-hole of inner protection tube is passed respectively to the connecting wire, and the insulating skin sclerosis of cable that has avoided the high temperature to arouse takes place ageing damage because of removing, bending, has also avoided signal line short circuit, the phenomenon of opening circuit to appear, can dispel the heat to the connecting seat through the fin on the connecting seat, and the convenience is taken off the change or is maintained signal transmission line.
Description
Technical Field
The utility model relates to an oxygen sensor technical field, specific field is a high temperature resistant stable state wide region oxygen sensor.
Background
The oxygen sensor is an important part of a fuel feedback control system of an automobile engine, is the most important sensor in an automobile electronic fuel injection system, is an induction neuron for controlling the mass ratio (air-fuel ratio for short) of air and fuel in an engine room by the system, and a signal transmission line on the oxygen sensor is connected with a central control element ECU of the automobile electronic fuel injection system to control the air-fuel ratio in the engine room.
The detection head part of the common oxygen sensor can completely resist 800 ℃, but the tail part of the sensor can only resist 400 ℃, and the signal cable of the sensor can only resist less than 200 ℃. When the common oxygen sensor is used and operated in an environment higher than 200 ℃, long-term high-temperature corrosion can damage the sensor and a cable at the tail part of the sensor, so that the resistance value of a line is increased to influence the measurement precision, and even short circuit, open circuit and the like occur. Therefore, a high-temperature-resistant steady-state wide-range oxygen sensor is provided.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a high temperature resistant stable state wide region oxygen sensor to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: a high-temperature-resistant stable-state wide-range oxygen sensor comprises an oxygen sensor, an inner protection tube and an outer protection tube, wherein a high-temperature stable-state oxygen sensor chip is arranged in the oxygen sensor, the inner protection tube is arranged in the outer protection tube, one end of the oxygen sensor is connected with one end of the inner protection tube, one end, close to the inner protection tube, of the oxygen sensor is provided with a plurality of connecting wires, a plurality of through holes are formed in the inner protection tube along the length direction of the inner protection tube, the connecting wires respectively penetrate through the corresponding through holes, heat insulation materials are filled between the inner protection tube and the outer protection tube, a clamp spring groove is formed in an inner cavity of the outer protection tube, far away from the oxygen sensor, a clamp spring is arranged in the clamp spring groove, a threaded portion is arranged on the outer side of the clamp spring groove, a, the first wiring terminal is connected with one end of a signal transmission line, and the other end of the signal transmission line is provided with a second wiring terminal.
Preferably, the connecting seat includes the connecting cylinder, one side that the connecting cylinder is close to the outer protection tube is rotated and is connected with the screw thread seat, the screw thread seat is connected with the screw thread portion threaded connection of outer protection tube inner chamber, the connecting cylinder opposite side is equipped with the connecting plate, the lateral wall of connecting cylinder is located and is equipped with a plurality of fin between connecting plate and the screw thread seat, the one end that the connecting cylinder is close to the inner protection tube is equipped with the end of pegging graft, the one end that the inner protection tube was kept away from to the connecting cylinder is equipped with inserts the end.
Preferably, the connecting seat is an aluminum alloy connecting seat.
Preferably, the inner protection tube is a heat insulation ceramic tube.
Preferably, a high temperature resistant lining pad is arranged at the joint of the inner protection tube and the oxygen sensor.
Preferably, the heat insulation material is heat insulation ceramic fiber cotton.
Compared with the prior art, the beneficial effects of the utility model are that: the utility model provides a high temperature resistant stable state wide region oxygen sensor, be connected oxygen sensor and engine, through oxygen sensor to the oxygen content measurement in the gas under the high temperature environment, the connecting wire passes each inside through-hole of inner protection tube respectively, the insulating skin sclerosis of cable that has avoided high temperature to arouse is because of removing, it is ageing damaged to bend to take place, the short circuit has also been avoided signal line to appear, the phenomenon of opening circuit, carry out spacing fixed to the inner protection tube through the jump ring of jump ring inslot, can dispel the heat to the connecting seat through the fin on the connecting seat, can reduce the heat that conveys the connecting plate, it receives the influence of high temperature to reduce first binding post, it has first binding post to peg graft through the rear end of connecting seat, the convenience is taken.
Drawings
FIG. 1 is a schematic sectional view of the present invention;
FIG. 2 is a schematic cross-sectional view of the connecting cylinder of the present invention;
fig. 3 is a schematic side view of the inner protection tube of the present invention;
fig. 4 is an enlarged schematic view of a portion a in fig. 1.
In the figure: the sensor comprises an oxygen sensor 1, an inner protection tube 2, an outer protection tube 3, a connecting wire 4, a through hole 5, a heat insulation material 6, a clamp spring 7, a connecting seat 8, a connecting cylinder 801, a threaded seat 802, a connecting plate 803, a plug end 804, an insertion end 805, a radiating fin 806, a first connecting terminal 9, a signal transmission line 10, a second connecting terminal 11 and a high-temperature-resistant lining pad 12.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a high temperature resistant stable state wide region oxygen sensor, includes oxygen sensor 1, inner protection tube 2 and outer protection tube 3, oxygen sensor 1 embeds there is high temperature stable state oxygen sensor chip, is connected oxygen sensor 1 with the engine, through oxygen sensor 1 to the oxygen content measurement in the gas under the high temperature environment, inner protection tube 2 locates the inside of outer protection tube 3, the one end of oxygen sensor 1 is connected with the one end of inner protection tube 2, oxygen sensor 1 is close to the one end of inner protection tube 2 and is equipped with a plurality of connecting wires 4, a plurality of through-hole 5 have been seted up along its length direction in the inner protection tube 2, a plurality of connecting wire 4 passes corresponding each through-hole 5 respectively, and the afterbody of oxygen sensor 1 is connected with the one end of inner protection tube 2 to pass each through-hole 5 of inner protection tube 2 inside respectively with connecting wire 4, avoided the hardening of cable insulating skin that high temperature arouses, The bending is aged and damaged, short circuit and open circuit of a signal line are avoided, a heat insulating material (not shown in the figure) is filled between the inner protection tube 2 and the outer protection tube 3, direct heat radiation of the inner protection tube 2 in a high-temperature environment is avoided through the heat insulating material, a clamp spring groove is arranged in an inner cavity of one side of the outer protection tube 3, which is far away from the oxygen sensor 1, a clamp spring 7 is arranged in the clamp spring groove, the inner protection tube 2 is limited and fixed through the clamp spring 7 in the clamp spring groove, a threaded part is arranged on the outer side of the clamp spring groove in the inner cavity of the outer protection tube 3, the threaded part is in threaded connection with a rear connecting seat 8, a first connecting terminal 9 is inserted at the rear end of the connecting seat 8, the first connecting terminal 9 is connected with one end of a signal transmission line 10, a second connecting, the signal transmission line 10 is convenient to take down, replace or maintain.
Specifically, the connecting seat 8 includes a connecting cylinder 801, one side of the connecting cylinder 801 that is close to the outer protection tube 3 is rotated and is connected with a screw thread seat 802, the screw thread seat 802 is in threaded connection with the screw thread portion of the inner cavity of the outer protection tube 3, the other side of the connecting cylinder 801 is provided with a connecting plate 803, the outer side wall of the connecting cylinder 801 is located and is provided with a plurality of radiating fins 806 between the connecting plate 803 and the screw thread seat 802, one end of the connecting cylinder 801 that is close to the inner protection tube 2 is provided with an inserting end 804, one end of the connecting cylinder 801 that is far away from the inner protection tube 2 is provided with an inserting end 805, the inserting end 805 is inserted with a first connecting terminal 9, the connecting cylinder 8 can be radiated through the radiating fins 806 on the connecting seat 8, heat transferred to the.
Particularly, the connecting seat 8 is an aluminum alloy connecting seat, and the aluminum alloy material can improve the heat dissipation efficiency of the connecting seat 8.
Specifically, the inner protection tube 2 is a heat insulation ceramic tube which has the characteristics of wear resistance, high temperature resistance, insulation and the like, so that the phenomenon that the insulation sheath of the connecting wire 4 is aged and damaged due to movement and bending caused by high temperature is avoided, and the phenomenon that a signal circuit is short-circuited and broken is also avoided.
Specifically, the high temperature resistant liner 6 is arranged at the joint of the inner protection tube 2 and the oxygen sensor 1, so that the buffering and sealing effects can be increased, the oxygen sensor 1 is protected from being extruded by the inner protection tube 2, and the sealing effect between the inner protection tube 2 and the outer protection tube 3 is also ensured.
Specifically, the heat insulating material is heat insulating ceramic fiber cotton, has the characteristics of light weight, high strength, low heat conductivity and the like, and can well avoid direct heat radiation of a high-temperature environment to the inner protection pipe 2.
The working principle is as follows: use the utility model discloses in the time, be connected oxygen sensor 1 with the engine, through oxygen sensor 1 to the oxygen content measurement in the gas under the high temperature environment, oxygen sensor 1's afterbody is connected with inner protection tube 2's one end, and pass each through-hole 5 of inner protection tube 2 inside respectively with connecting wire 4, the insulating skin sclerosis of cable of having avoided the high temperature to arouse is because of removing, it is ageing damaged to bend to take place, the short circuit has also been avoided signal line to appear, the phenomenon of opening circuit, it is spacing fixed to carry out inner protection tube 2 through jump ring 7 of jump ring inslot, can dispel the heat to connecting seat 8 through fin 806 on connecting seat 8, can reduce the heat that conveys connecting plate 803, it receives the influence of high temperature to reduce first binding post 9, it has first binding post 9 to peg graft through the rear end of connecting seat 8, the convenience is taken.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a high temperature resistant stable state wide region oxygen sensor, includes oxygen sensor (1), inner protection tube (2) and outer protection tube (3), its characterized in that: the oxygen sensor (1) is internally provided with a high-temperature stable oxygen sensor chip, the inner protection tube (2) is arranged inside the outer protection tube (3), one end of the oxygen sensor (1) is connected with one end of the inner protection tube (2), one end, close to the inner protection tube (2), of the oxygen sensor (1) is provided with a plurality of connecting wires (4), a plurality of through holes (5) are formed in the inner protection tube (2) along the length direction of the inner protection tube, the connecting wires (4) penetrate through the corresponding through holes (5) respectively, heat insulation materials are filled between the inner protection tube (2) and the outer protection tube (3), an inner cavity, far away from the oxygen sensor (1), of the outer protection tube (3) is provided with a clamp spring groove, a clamp spring (7) is arranged in the clamp spring groove, an inner cavity of the outer protection tube (3) is arranged outside the clamp spring groove and is provided with, the rear end of connecting seat (8) is pegged graft and is had first binding post (9), first binding post (9) are connected with the one end of signal transmission line (10), the other end of signal transmission line (10) is equipped with second binding post (11).
2. The high temperature stable wide area oxygen sensor of claim 1, wherein: connecting seat (8) are including connecting cylinder (801), one side that connecting cylinder (801) are close to outer protection tube is rotated and is connected with screw thread seat (802), screw thread seat (802) and the screw thread portion threaded connection of outer protection tube (3) inner chamber, connecting cylinder (801) opposite side is equipped with connecting plate (803), the lateral wall of connecting cylinder (801) is located and is equipped with a plurality of fin (806) between connecting plate (803) and screw thread seat (802), connecting cylinder (801) are close to the one end of inner protection tube (2) and are equipped with grafting end (804), the one end that inner protection tube was kept away from to connecting cylinder (801) is equipped with inserts end (805), it has first binding post (9) to insert end (805) grafting.
3. The high temperature stable wide area oxygen sensor of claim 1, wherein: the connecting seat (8) is an aluminum alloy connecting seat.
4. The high temperature stable wide area oxygen sensor of claim 1, wherein: the inner protection tube (2) is a heat insulation ceramic tube.
5. The high temperature stable wide area oxygen sensor of claim 1, wherein: the joint of the inner protection tube (2) and the oxygen sensor (1) is provided with a high temperature resistant liner (6).
6. The high temperature stable wide area oxygen sensor of claim 1, wherein: the heat insulation material is heat insulation ceramic fiber cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021667985.0U CN213181458U (en) | 2020-08-12 | 2020-08-12 | High-temperature-resistant stable wide-range oxygen sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021667985.0U CN213181458U (en) | 2020-08-12 | 2020-08-12 | High-temperature-resistant stable wide-range oxygen sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213181458U true CN213181458U (en) | 2021-05-11 |
Family
ID=75800155
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021667985.0U Expired - Fee Related CN213181458U (en) | 2020-08-12 | 2020-08-12 | High-temperature-resistant stable wide-range oxygen sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213181458U (en) |
-
2020
- 2020-08-12 CN CN202021667985.0U patent/CN213181458U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20210511 |