CN114152361B - Exhaust temperature sensor work monitoring device - Google Patents
Exhaust temperature sensor work monitoring device Download PDFInfo
- Publication number
- CN114152361B CN114152361B CN202111304261.9A CN202111304261A CN114152361B CN 114152361 B CN114152361 B CN 114152361B CN 202111304261 A CN202111304261 A CN 202111304261A CN 114152361 B CN114152361 B CN 114152361B
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- China
- Prior art keywords
- temperature sensor
- exhaust
- monitoring device
- thermistor
- exhaust pipe
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/16—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements
- G01K7/22—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using resistive elements the element being a non-linear resistance, e.g. thermistor
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/08—Protective devices, e.g. casings
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
- G01K1/14—Supports; Fastening devices; Arrangements for mounting thermometers in particular locations
Abstract
The invention provides an exhaust temperature sensor work monitoring device which comprises a monitoring device body, wherein the monitoring device body comprises a thermistor type temperature sensor, a signal wire I, a thermistor ring I and a thermistor ring II, the thermistor ring II is sleeved on the surface of an exhaust pipe, an exhaust temperature sensor is installed at the top end of the exhaust pipe, a temperature sensing head is installed at the bottom end of the exhaust temperature sensor, a nut is installed at the top end of the temperature sensing head, a heat insulation plate is installed at the top end of the exhaust pipe, fixing plates are arranged at two ends of the heat insulation plate, screws penetrate through the fixing plates, a clamping groove is formed in the middle of the bottom end of the heat insulation plate, and the top end of the exhaust temperature sensor is connected with the signal wire II.
Description
Technical Field
The invention relates to the technical field of exhaust temperature sensors, in particular to a work monitoring device of an exhaust temperature sensor.
Background
The exhaust temperature sensor is arranged in the exhaust pipe and used for converting a temperature signal in the exhaust pipe into an electric signal and then sending the electric signal to the control unit, and if the exhaust temperature sensor causes deviation of a measured value due to various reasons, the exhaust emission in the running process of a vehicle exceeds the standard.
In the prior art, whether the working state of the exhaust temperature sensor is normal is judged through static detection and dynamic detection, but whether the measured value of the exhaust temperature sensor does not exceed the upper limit of measurement or is not lower than the lower limit of measurement can only be judged, and when the measured value does not exceed the upper limit of measurement or is not lower than the lower limit of measurement, whether the measured value has deviation or not is difficult to detect, and the temperature change difference between the starting time and the starting time is large, so that the monitoring from a plurality of directions is difficult.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a work monitoring device of an exhaust temperature sensor, so as to solve the problems in the background technology.
In order to achieve the purpose, the invention is realized by the following technical scheme: the utility model provides an exhaust temperature sensor work monitoring device, includes the monitoring device body, the monitoring device body includes thermistor formula temperature-sensing ware, signal line one, thermistor ring one and thermistor ring two, thermistor ring two is established on the surface of blast pipe, exhaust temperature sensor is installed on the top of blast pipe, the temperature sensing head is installed to exhaust temperature sensor's bottom, the nut is installed on the top of temperature sensing head, the heat insulating board is installed on the top of blast pipe, the both ends of heat insulating board are provided with the fixed plate, the screw has been interlude to the inside of fixed plate, the draw-in groove has been seted up to the centre of the bottom of heat insulating board, exhaust temperature sensor's top is connected with signal line two, signal line two is passed the buckle and is laminated with signal line one mutually, the one end of signal line one is connected with thermistor formula temperature-sensing ware, the rear end of thermistor formula temperature-sensing ware is provided with the wire collection pipe, the surface subsides of collection pipe is equipped with the insulating layer, conductor wire one and copper post are installed to the bottom of collection pipe, the one end of conductor line one is provided with thermistor formula temperature-sensing ring one, the bottom of copper post is connected with accepting through the copper wire through the pivot, the bottom of copper wire is installed and is increased the weight ball, the bottom of accepting the copper wire dish, the copper wire dish is installed the copper wire two sides of copper wire, the side of resistance dish, the conductor dish is installed the side of copper wire two is provided with the side of conductor dish, the side of temperature-sensing, the side of copper wire, the temperature-sensing dish is provided with the side of conductor dish, the side of copper wire, the temperature-sensing is provided with the temperature-sensing ware.
In a preferred embodiment of the present invention, the temperature sensing head penetrates through a casing of the exhaust pipe and extends into the exhaust pipe, and the nut is attached to a surface of the exhaust pipe to fix the temperature sensing head inside.
In a preferred embodiment of the present invention, the size of the clamping groove is the same as that of a nut installed inside the clamping groove, and the exhaust temperature sensor passes through the middle of the heat insulation plate.
In a preferred embodiment of the present invention, the first thermistor ring is disposed to cover the exhaust gas temperature sensor in the middle without contacting with each other.
As a preferred embodiment of the invention, the receiving copper wires and the grooves are arranged in a plurality and have the same number, each receiving copper wire is placed in the groove at the corresponding position, and the grooves are in a U-shaped structure.
In a preferred embodiment of the present invention, three temperature sensing convex cylinders are provided, and each temperature sensing convex cylinder penetrates through a casing of the exhaust pipe and contacts with a space inside the exhaust pipe.
In a preferred embodiment of the present invention, the temperature sensing convex column and the thermistor ring are integrated into a single body, and the temperature sensing convex column and the thermistor ring form a single line together.
In a preferred embodiment of the present invention, an insulating layer is attached to a surface of the second thermistor ring, and an insulating layer is not attached to a top end of the temperature sensing convex cylinder.
In a preferred embodiment of the present invention, the conductive wire is gathered inside the header pipe as soon as the conductive wire passes through the surface of the insulating layer.
In a preferred embodiment of the present invention, the heat insulation plate is mounted on the surface of the exhaust pipe by being engaged with the fixing plate through screws, and the bottom end of the heat insulation plate is attached to the exhaust pipe.
The invention has the beneficial effects that: the invention discloses a monitoring device for the work of an exhaust temperature sensor, which comprises a monitoring device body, wherein the monitoring device body comprises a buckle, a signal wire I, a signal wire II, a thermistor type temperature sensor, an insulating layer, a conducting wire I, a copper column, a bearing copper wire, a conducting wire II, a thermistor ring II, an exhaust pipe, a temperature sensing head, a nut, a screw, a heat insulation plate, a clamping groove, a thermistor ring I, an exhaust temperature sensor, a weighting ball, a copper disc, a rotating shaft, a temperature sensing convex column, a groove, a wire collecting pipe and a fixing plate.
1. This exhaust temperature sensor work monitoring device has the design of two thermistor rings and can contrast from two regions of inside and outside temperature simultaneously, and it is higher to detect the precision, and can follow different positions and monitor before the heat engine starts, and monitoring effect is too better, uses the exhaust temperature sensor under the multiple operating condition.
2. This exhaust temperature sensor work monitoring device responds to the temperature of different positions in the exhaust pipe through a plurality of temperature sensing convex columns, acquires more accurate average data, avoids the temperature anomaly in specific area to lead to producing the erroneous judgement to the result of control.
3. This exhaust temperature sensor work monitoring device when the engine acutely shakes, even the violent vibration appears in the copper disc still can keep with the contact of copper wire, and the fracture of electrically conductive core material can be avoided again to the disconnect-type structure, and increase of service life when guaranteeing the signal of telecommunication intercommunication.
4. This exhaust temperature sensor work monitoring device utilizes the draw-in groove to cover the nut, can avoid because the vibration of blast pipe leads to the condition that the nut rotated, prevents that the temperature sensing head pine from taking off.
Drawings
FIG. 1 is a front cross-sectional view of an exhaust gas temperature sensor operation monitoring apparatus of the present invention;
FIG. 2 is a front cross-sectional view of a second thermistor ring of the monitoring device for operation of an exhaust gas temperature sensor in accordance with the present invention;
FIG. 3 is a schematic structural view of a copper pillar portion of an exhaust gas temperature sensor operation monitoring apparatus according to the present invention;
FIG. 4 is a top plan view of a copper disk portion of an exhaust gas temperature sensor operation monitoring device of the present invention;
in the figure: 1. buckling; 2. a first signal line; 3. a second signal line; 4. a thermistor-type temperature sensor; 5. an insulating layer; 6. a first conductive line; 7. a copper pillar; 8. carrying copper wires; 9. a second conductive line; 10. a second thermistor ring; 11. an exhaust pipe; 12. a temperature sensing head; 13. a nut; 14. a screw; 15. a heat insulation plate; 16. a card slot; 17. a thermistor ring I; 18. an exhaust gas temperature sensor; 19. a weight increasing ball; 20. a copper disc; 21. a rotating shaft; 22. a temperature sensing convex column; 23. a groove; 24. a line collecting pipe; 25. and (5) fixing the plate.
Detailed Description
In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described with the specific embodiments.
Referring to fig. 1 to 4, the present invention provides a technical solution: the utility model provides an exhaust temperature sensor work monitoring device, includes the monitoring device body, the monitoring device body includes thermistor formula temperature-sensing ware 4, signal line 2, thermistor ring 17 and thermistor ring two 10, thermistor ring two 10 covers establishes on the surface of blast pipe 11, exhaust temperature sensor 18 is installed on the top of blast pipe 11, temperature sensing head 12 is installed to exhaust temperature sensor 18's bottom, nut 13 is installed on temperature sensing head 12's top, heat insulating board 15 is installed on the top of blast pipe 11, the both ends of heat insulating board 15 are provided with fixed plate 25, the inside interlude of fixed plate 25 has screw 14, draw-in groove 16 has been seted up to the centre of heat insulating board 15's bottom, exhaust temperature sensor 18's top is connected with signal line two 3, signal line two 3 laminates with signal line 2 through buckle 1, the one end of signal line 2 is connected with thermistor formula temperature-sensing ware 4, the rear end of thermistor formula temperature-sensing ware 4 is provided with collection pipe 24, the surface subsides of collection pipe 24 is equipped with insulating layer 5, a 6 and copper line 7 are installed to the bottom of collection pipe 24, the one end of conductor wire 6 is provided with thermistor formula temperature-sensing ring 7 and the pivot is installed and is connected with copper wire 20 the side of copper line 19, the side of copper wire 20, the side of copper wire connection 20, the side of copper wire is installed the copper wire 19, and the heat-sensing dish is connected with the copper wire 20, the bottom of copper wire 19, the side of copper wire is installed the copper wire 19, the bottom of copper wire is connected with the copper wire 19, the copper wire is installed the inboard side of collection pipe 10 is installed the copper wire.
In a preferred embodiment of the present invention, the temperature sensing head 12 penetrates the casing of the exhaust pipe 11 and extends into the exhaust pipe 11, and is mainly used for measuring the temperature of the internal space of the exhaust pipe 11.
In a preferred embodiment of the present invention, the size of the slot 16 is the same as the size of the nut 13, the nut 13 is installed inside the slot 16, and the slot 16 can prevent the nut 13 from being loosened by rotation due to vibration.
In a preferred embodiment of the present invention, the first thermistor ring 17 is disposed to cover the exhaust temperature sensor 18 in the middle without contacting with each other, and the first thermistor ring 17 is disposed outside and as close as possible to the area of the thermal head 12, so as to detect and compare the temperature of the area near the thermal head 12 in an inactivated state.
As a preferred embodiment of the invention, a plurality of the bearing copper wires 8 and the grooves 23 are arranged, the number of the bearing copper wires 8 and the number of the grooves 23 are the same, each bearing copper wire 8 is placed in the groove 23 at the corresponding position, the grooves 23 are in a U-shaped structure, and each bearing copper wire 8 can lean against the inner side of the groove 23 under the pulling action of the weighting ball 19.
In a preferred embodiment of the present invention, three temperature sensing convex cylinders 22 are provided, and each of the temperature sensing convex cylinders 22 penetrates through the casing of the exhaust pipe 11 and contacts with the space inside the casing, so that the temperature sensing convex cylinders 22 can extend the temperature detection range and improve accuracy.
In a preferred embodiment of the present invention, the temperature-sensing convex cylinder 22 and the second thermistor ring 10 are integrated into a single line, and the resistance value is influenced by the temperature change and is finally transmitted to the outside by using the change of the current as a temperature change signal.
In a preferred embodiment of the present invention, an insulating layer 5 is attached to the surface of the second thermistor ring 10, and the second thermistor ring 10 is isolated from the exhaust pipe 11 by the insulating layer 5.
In a preferred embodiment of the present invention, the first conductive wires 6 pass through the surface of the insulating layer 5 and are collected inside the header 24, and four wires, two sets of circuits, are connected to the inside of the thermistor temperature sensor 4.
In a preferred embodiment of the present invention, the heat insulation plate 15 is mounted on the surface of the exhaust pipe 11 by engaging the screw 14 with the fixing plate 25, and the bottom end of the heat insulation plate 15 is attached to the exhaust pipe 11, so that the body portion of the exhaust temperature sensor 18 is protected from heat by the heat insulation plate 15.
The working principle is as follows: the work monitoring device of the exhaust temperature sensor mainly comprises a thermistor type temperature sensor 4, a signal wire I2, a thermistor ring I17 and a thermistor ring II 10, wherein the exhaust temperature sensor 18 records the temperature in the exhaust pipe 11 through a temperature sensing head 12 at the bottom end, the temperature in the exhaust pipe 11 and the temperature outside the exhaust pipe 11 are detected through the thermistor ring I17 and the thermistor ring II 10 at the rear end of the thermistor type temperature sensor 4, the operation of the exhaust temperature sensor 18 can be monitored to be normal or not through comparison with the data obtained by the exhaust temperature sensor 18, the thermistor ring I17 and the thermistor ring II 10 can influence the internal resistor through temperature change, the final actual temperature is calculated through a thermal current phenomenon, the design of the two thermistor rings can be compared from an inner temperature area and an outer temperature area at the same time, the detection accuracy is higher, the temperature sensing device can be used for exhaust temperature sensors 18 in various working states, a plurality of temperature sensing convex columns 22 are arranged on the inner side of a second thermistor ring 10, the temperature sensing convex columns 22 directly penetrate through the shell of the exhaust pipe 11 to be contacted with the inner part of the exhaust pipe, the temperature sensing convex columns 22 can sense the temperatures of different positions, so that more accurate and average data can be obtained, misjudgment on the monitoring result caused by abnormal temperature in a specific area is avoided, the top end of the second thermistor ring 10 is contacted with a bearing copper wire 8 through a copper disc 20 to transmit a current signal, a plurality of grooves 23 are formed in the surface of the copper disc 20 to be used for placing the bearing copper wires 8, and a weighting ball 19 is arranged at the bottom end of each bearing copper wire 8 to ensure that the bearing copper wires 8 keep hanging downwards, and when an engine shakes violently, make copper disc 20 still can keep the contact with the copper wire when the vibration, and the disconnect-type structure can avoid the fracture of electrically conductive core material again, when guaranteeing the signal of telecommunication intercommunication and increase of service life, temperature sensing head 12 part uses nut 13 to fix, the top of nut 13 uses heat insulating board 15 to separate exhaust temperature sensor 18 and blast pipe 11's casing, avoid exhaust temperature sensor 18 to leak suddenly for a long time and lead to damaging under high temperature, and the bottom of heat insulating board 15 is seted up one and is the same draw-in groove 16 with nut 13 shape, utilize draw-in groove 16 to cover nut 13, can avoid leading to the pivoted condition of nut 13 because of the vibration of blast pipe 11, prevent that temperature sensing head 12 pine from taking off.
While there have been shown and described what are at present considered the fundamental principles and essential features of the invention and its advantages, it will be apparent to those skilled in the art that the invention is not limited to the details of the foregoing exemplary embodiments, but is capable of other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides an exhaust temperature sensor work monitoring device, includes the monitoring device body, its characterized in that: the monitoring device body comprises a thermistor temperature sensor (4), a signal line I (2), a thermistor ring I (17) and a thermistor ring II (10), the thermistor ring II (10) is sleeved on the surface of the exhaust pipe (11), the exhaust temperature sensor (18) is installed on the top end of the exhaust pipe (11), a temperature sensing head (12) is installed at the bottom end of the exhaust temperature sensor (18), a nut (13) is installed on the top end of the temperature sensing head (12), a heat insulation plate (15) is installed on the top end of the exhaust pipe (11), fixing plates (25) are arranged at two ends of the heat insulation plate (15), screws (14) are inserted into the fixing plates (25), a clamping groove (16) is formed in the middle of the bottom end of the temperature sensing head (15), the top end of the exhaust temperature sensor (18) is connected with the signal line II (3), the signal line II (3) is attached to the signal line I (2) through a buckle (1), one end of the signal line I (2) is connected with the thermistor temperature sensor (4), the rear end of the thermistor temperature sensor (4) is provided with a wire collecting pipe (24), and a conductive wire (5) and a conductive wire (6) and a conductive wire (7) are mounted on the surface of the copper wire collecting pipe (5), one end of the first electric lead (6) is provided with a first thermistor ring (17), the bottom end of the copper column (7) is connected with a bearing copper wire (8) through a rotating shaft (21), a weighting ball (19) is installed at the bottom end of the bearing copper wire (8), a copper disc (20) is installed at the bottom end of the bearing copper wire (8), a groove (23) is formed in the side edge of the copper disc (20), the copper disc (20) is installed at the top end of the second electric lead (9), a temperature sensing convex column (22) is arranged on the inner side of the second thermistor ring (10), a shell, penetrating through the exhaust pipe (11), of the temperature sensing head (12) extends into the inside of the exhaust pipe (11), the nut (13) is installed on the surface of the exhaust pipe (11) to fix the temperature sensing head (12) inside, the first thermistor ring (17) sleeves the exhaust temperature sensor (18) in the middle, and does not contact with each other.
2. An exhaust gas temperature sensor operation monitoring device according to claim 1, wherein: the size of the clamping groove (16) is the same as that of the nut (13), the nut (13) is installed inside the clamping groove (16), and the exhaust temperature sensor (18) penetrates through the middle of the heat insulation plate (15).
3. The operation monitoring device of an exhaust gas temperature sensor according to claim 1, wherein: the receiving copper wires (8) and the grooves (23) are arranged in multiple numbers, the receiving copper wires (8) and the grooves (23) are the same in number, each receiving copper wire (8) is placed in the corresponding groove (23), and the grooves (23) are of U-shaped structures.
4. An exhaust gas temperature sensor operation monitoring device according to claim 1, wherein: the three temperature sensing convex columns (22) are arranged, and each temperature sensing convex column (22) penetrates through the shell of the exhaust pipe (11) and is in contact with the space inside the exhaust pipe.
5. The operation monitoring device of an exhaust gas temperature sensor according to claim 1, wherein: the temperature sensing convex column (22) and the second thermistor ring (10) are integrated into a whole, and the temperature sensing convex column and the second thermistor ring form a single line together.
6. The operation monitoring device of an exhaust gas temperature sensor according to claim 1, wherein: an insulating layer (5) is attached to the surface of the second thermistor ring (10), and the insulating layer (5) is not attached to the top end of the temperature sensing convex column (22).
7. The operation monitoring device of an exhaust gas temperature sensor according to claim 1, wherein: the first conducting wire (6) penetrates through the surface of the insulating layer (5) and is collected in the wire collecting pipe (24).
8. The operation monitoring device of an exhaust gas temperature sensor according to claim 1, wherein: the heat insulation plate (15) is installed on the surface of the exhaust pipe (11) through the matching between the screw (14) and the fixing plate (25), and the bottom end of the heat insulation plate (15) is attached to the exhaust pipe (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111304261.9A CN114152361B (en) | 2021-11-05 | 2021-11-05 | Exhaust temperature sensor work monitoring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111304261.9A CN114152361B (en) | 2021-11-05 | 2021-11-05 | Exhaust temperature sensor work monitoring device |
Publications (2)
| Publication Number | Publication Date |
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| CN114152361A CN114152361A (en) | 2022-03-08 |
| CN114152361B true CN114152361B (en) | 2022-12-13 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202111304261.9A Active CN114152361B (en) | 2021-11-05 | 2021-11-05 | Exhaust temperature sensor work monitoring device |
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| CN (1) | CN114152361B (en) |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4672565B2 (en) * | 2006-02-06 | 2011-04-20 | 三菱重工業株式会社 | Temperature measuring device, combustion monitoring device, and gas turbine |
| JP4829007B2 (en) * | 2006-05-16 | 2011-11-30 | 日本特殊陶業株式会社 | Temperature sensor |
| WO2013028819A1 (en) * | 2011-08-23 | 2013-02-28 | Stoneridge, Inc. | Exhaust gas temperature sensor including a vibration reducing and/or modifying sleeve |
| CN204244493U (en) * | 2014-12-04 | 2015-04-01 | 广东美的生活电器制造有限公司 | Thick film heating assembly and heating appliances |
| US10416042B2 (en) * | 2017-07-20 | 2019-09-17 | Volvo Truck Corporation | Engine exhaust emissions monitoring device |
| CN208238986U (en) * | 2018-05-23 | 2018-12-14 | 成都肯保捷芯辰传感器有限公司 | A kind of automobile exhaust temperature sensor |
| CN212931708U (en) * | 2020-09-03 | 2021-04-09 | 江苏巨舟高科技有限公司 | Automobile exhaust temperature sensor |
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2021
- 2021-11-05 CN CN202111304261.9A patent/CN114152361B/en active Active
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