CN206601205U - Exhaust temperature sensor - Google Patents
Exhaust temperature sensor Download PDFInfo
- Publication number
- CN206601205U CN206601205U CN201621461681.2U CN201621461681U CN206601205U CN 206601205 U CN206601205 U CN 206601205U CN 201621461681 U CN201621461681 U CN 201621461681U CN 206601205 U CN206601205 U CN 206601205U
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- base material
- temperature sensor
- protection pipe
- exhaust temperature
- sensing element
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Abstract
The utility model discloses a kind of exhaust temperature sensor, including protection pipe, temperature and resistance sensing element, base material；Temperature and resistance sensing element is fixed on base material right-hand member, and the two ends of temperature and resistance sensing element are respectively with the conducting wire connection on base material；The right part tube wall of protection pipe is provided with passage；Protection pipe is set in outside base material, and the passage on protection pipe right part tube wall is located at temperature and resistance sensing element periphery.Exhaust temperature sensor of the present utility model, is designed for opening, and the waste gas that the temperature and resistance sensing element in protection pipe right part can be discharged with waste pipe directly contacts carry out heat exchange, can accurately measure the temperature of exhaust, and the response time is faster.
Description
Technical field
The utility model is related to temperature sensor, more particularly to a kind of exhaust temperature sensor.
Background technology
Exhaust temperature sensor, which is arranged on, is used for the temperature for measuring exhaust on the blast pipe of gasoline and Diesel engine.For gasoline
Machine will meet the Abgasgesetz of capital six except the application of high pressure EGR (recycling of Exhaust Gas Recirculation waste gas), future
The gasoline engine systems of (or state six) may also choose to install exhaust temperature sensor.With the continuous renewal of Diesel Emissions regulation, diesel systems
Exhaust temperature sensor installation rate and installation quantity be also gradually increasing.
A kind of existing exhaust temperature sensor as shown in figure 1, temp probe sensing element 1 be semistor, temperature
Degree probe sensing element 1 is fixed together by installed part 3 with wire harness 5.During normal work, sensor front end insertion high-temp waste gas
In, exhaust temperature signal is converted into resistance signal by wire harness 5 and passes to ECU (electronic control unit) by temp probe.The row
Temperature sensor, is only sealed at sensing element, and temp probe is design of remaining silent, and measurement temperature exists with actual air temperature
Deviation, the response time is long；In addition, this kind of exhaust temperature sensor complex manufacturing, investment of production is high.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of exhaust temperature sensor, can accurately measure the temperature of exhaust,
And the response time is faster.
In order to solve the above technical problems, exhaust temperature sensor of the present utility model, including the sensitive member of protection pipe, temperature-resistance
Part, base material；
The temperature-resistance sensing element is fixed on the base material right-hand member, and the two ends of temperature-resistance sensing element are same respectively
Conducting wire connection on the base material；
The right part tube wall of the protection pipe is provided with passage；
The protection pipe is set in outside the base material, and the passage on protection pipe right part tube wall is located at temperature-resistance
Sensing element periphery.
Preferably, it is described protect tube wall it is synthermal-current sensing element do not contact.
Preferably, being provided with multiple passages on the protection pipe right part tube wall.
Preferably, the multiple passage is located on the right wall of the protection pipe right part and side wall.
Preferably, the passage is circular hole or square hole.
Preferably, the projected area of the passage is 1/5 to the 5/7 of temperature-resistance sensing element projected area.
Preferably, the exhaust temperature sensor also includes installed part, metal terminal, wire harness, seal assembly；
The installed part right-hand member is linked in outside the left part of the protection pipe；
The base material passes through the installed part, and base material left part passes the installed part left end；
The conducting wire that metal terminal one end pressing is connected on base material left part, other end rat tail；
The seal assembly is located in the installed part；
The base material passes through the seal assembly in installed part；
The seal assembly includes two panels ceramic insulation pad, a piece of boron nitride piece；
The two panels ceramic insulation pad is fitted in the boron nitride piece left and right sides respectively.
Preferably, the seal assembly also includes two talcum powder agglomates；
Two talcum powder agglomates are attached on the right side of right ceramic insulation pad and on the left of left ceramic insulation pad respectively.
Preferably, the base material is potsherd；
The base material left part is provided with the platinum electrode region of the conducting wire connection on same base material；
Described metal terminal one end presses the conducting wire that base material is connected in the platinum electrode region.
Preferably, the exhaust temperature sensor also includes wire harness protection pipe, terminal support；
The terminal support is used to support the metal terminal, the elasticity pressing of metal terminal one end is connected on base material left part
Conducting wire；
The wire harness protection pipe, is set in outside the installed part left end, terminal support and metal terminal.
Preferably, the wire harness protection pipe between the terminal support be provided with spring leaf.
Preferably, the metal terminal in the wire harness protection pipe left part is filled with insulating bushing with wire harness junction.
Exhaust temperature sensor of the present utility model, protection pipe right part tube wall is provided with passage, is designed for opening, positioned at protection
The waste gas that temperature-resistance sensing element in pipe right part can be discharged with waste pipe directly contacts carry out heat exchange,
The temperature of exhaust is can accurately measure, and the response time is faster.
Brief description of the drawings
In order to illustrate more clearly of the technical solution of the utility model, the accompanying drawing to being used required for the utility model below
It is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present utility model, for ability
For the those of ordinary skill of domain, on the premise of not paying creative work, it can also be obtained according to these accompanying drawings other attached
Figure.
Fig. 1 is a kind of existing exhaust temperature sensor schematic diagram.
Fig. 2 is the embodiment diagrammatic cross-section of exhaust temperature sensor one of the present utility model.
Embodiment
Below in conjunction with accompanying drawing, clear, complete description is carried out to the technical scheme in the utility model, it is clear that retouched
The embodiment stated is a part of embodiment of the present utility model, rather than whole embodiments.Based on the reality in the utility model
Apply example, all other embodiment that those of ordinary skill in the art are obtained on the premise of creative work is not made, all
Belong to the scope of the utility model protection.
Embodiment one
As shown in Fig. 2 exhaust temperature sensor includes protection pipe 2, temperature-resistance sensing element 1, base material 4；
The temperature-resistance sensing element 1 is fixed on the right-hand member of base material 4, the two ends point of temperature-resistance sensing element 1
Do not connected with the conducting wire on the base material 2；
The right part tube wall of the protection pipe 2 is provided with passage 21；
The protection pipe 2 is set in outside the base material 4, and the passage 21 on the right part tube wall of protection pipe 2 be located at temperature-
The periphery of current sensing element 1.
Preferably, the tube wall of protection pipe 2 it is synthermal-current sensing element 1 do not contact.
Preferably, being provided with multiple passages 21 on the right part tube wall of protection pipe 2.
Preferably, the multiple passage 21 is located on the right wall of the right part of protection pipe 2 and side wall.
Preferably, the passage 21 is circular hole or square hole.
Preferably, the projected area of the passage 21 is 1/5 to the 5/7 of the projected area of temperature-resistance sensing element 1.
The exhaust temperature sensor of embodiment one, the right part tube wall of protection pipe 2 is provided with passage 21, is designed for opening, positioned at guarantor
The waste gas that temperature-resistance sensing element 1 in the right part of pillar 2 can be discharged with waste pipe directly contacts the hot friendship of progress
Change, can accurately measure the temperature of exhaust, and the response time is faster.
When the tube wall of the right part of protection pipe 2 be provided with multiple passages, sensing element 1 with protection pipe 2 without contacting when, gas
Body is exchanged can be more smooth.
Embodiment two
Based on embodiment one, the exhaust temperature sensor also includes installed part 3, metal terminal 7, wire harness 5, seal assembly 6；
The right-hand member of installed part 3 is linked in outside the left part of the protection pipe 2；
The base material 4 passes through the installed part 3, and the left part of base material 4 passes the left end of installed part 3；
The conducting wire that the one end of metal terminal 7 pressing is connected on the left part of base material 4, other end rat tail 5；
The seal assembly is located in the installed part 3；
The base material 4 passes through the seal assembly in installed part 3；
The seal assembly 6 includes two panels ceramic insulation pad 62, a piece of boron nitride (BN) piece 61；
The two panels ceramic insulation pad 62 is fitted in the boron nitride (BN) the piece left and right sides respectively.
The exhaust temperature sensor of embodiment two, protection pipe 2 with inside the installed part 3 between metal terminal 7 using include make pottery
The seal assembly of porcelain insulating pad 62 and boron nitride (BN) piece 61 is sealed, and ceramic insulation pad 62 has good insulating properties
It can and can be used for fixing, the water resistance of boron nitride (BN) piece 61 is strong, and intensity is high, and seal assembly can effectively prevent waste gas and condensation
Water pollution metal terminal 7.
Embodiment three
Based on the exhaust temperature sensor of embodiment two, the seal assembly also includes two talcum powder agglomates 63；
Two talcum powder agglomates 63 are attached to the right right side of ceramic insulation pad 62 and the left side of left ceramic insulation pad 62 respectively.
The exhaust temperature sensor of embodiment three, protection pipe 2 with inside the installed part 3 between metal terminal 7 using include make pottery
The seal assembly of porcelain insulating pad 62 and boron nitride (BN) piece 61 and talcum powder agglomates 63 is sealed, and talcum powder agglomates 63 can pass through
Powdery talc powder is filled into sinter behind the inside of installed part 3 and formed, and joint filling is more abundant, further improves sealing property, completely cuts off waste gas
And condensed water, sealing effectiveness is more preferable.
Example IV
Based on the exhaust temperature sensor of embodiment one, the base material 4 is potsherd；
The left part of base material 4 is provided with the platinum electrode region of the conducting wire connection on same base material 4；
Described one end of metal terminal 7 presses the conducting wire that base material 4 is connected in the platinum electrode region.
The exhaust temperature sensor of example IV, it is left by metal terminal 7 and ceramic plate substrate 4 using potsherd as base material 4
The platinum electrode region in portion is contacted, and is directly contacted and is more stablized with sensing element compared to wire, signal transmission is more stable.
Embodiment five
Based on embodiment two, the exhaust temperature sensor also includes wire harness protection pipe 8, terminal support 81；
The terminal support 81 is used to support the metal terminal 7, the elasticity pressing of the one end of metal terminal 7 is connected base material 4
Conducting wire on left part；
The wire harness protection pipe 8, is set in outside the left end of installed part 3, terminal support 81 and metal terminal 7.
Preferably, the wire harness protection pipe 8 between the terminal support 81 be provided with spring leaf 82.
Preferably, the metal terminal 7 in the left part of wire harness protection pipe 8 is filled with insulating bushing 83 with the junction of wire harness 5.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements done etc. should be included in the utility model
Within the scope of protection.
Claims (12)
1. a kind of exhaust temperature sensor, including protection pipe, temperature-resistance sensing element, base material；Characterized in that,
The temperature-resistance sensing element is fixed on the base material right-hand member, and the two ends of temperature-resistance sensing element are respectively with described
Conducting wire connection on base material；
The right part tube wall of the protection pipe is provided with passage；
The protection pipe is set in outside the base material, and the passage on protection pipe right part tube wall is located at temperature-resistance sensitivity
Component periphery.
2. exhaust temperature sensor according to claim 1, it is characterised in that
It is described protect tube wall it is synthermal-current sensing element do not contact.
3. exhaust temperature sensor according to claim 1, it is characterised in that
Multiple passages are provided with the protection pipe right part tube wall.
4. exhaust temperature sensor according to claim 3, it is characterised in that
The multiple passage is located on the right wall of the protection pipe right part and side wall.
5. exhaust temperature sensor according to claim 1, it is characterised in that
The passage is circular hole or square hole.
6. exhaust temperature sensor according to claim 1, it is characterised in that
The projected area of the passage is 1/5 to the 5/7 of temperature-resistance sensing element projected area.
7. exhaust temperature sensor according to claim 1, it is characterised in that
The exhaust temperature sensor also includes installed part, metal terminal, wire harness, seal assembly；
The installed part right-hand member is linked in outside the left part of the protection pipe；
The base material passes through the installed part, and base material left part passes the installed part left end；
The conducting wire that metal terminal one end pressing is connected on base material left part, other end rat tail；
The seal assembly is located in the installed part；
The base material passes through the seal assembly in installed part；
The seal assembly includes two panels ceramic insulation pad, a piece of boron nitride piece；
The two panels ceramic insulation pad is fitted in the boron nitride piece left and right sides respectively.
8. exhaust temperature sensor according to claim 7, it is characterised in that
The seal assembly also includes two talcum powder agglomates；
Two talcum powder agglomates are attached on the right side of right ceramic insulation pad and on the left of left ceramic insulation pad respectively.
9. exhaust temperature sensor according to claim 7, it is characterised in that
The base material is potsherd；
The base material left part is provided with the platinum electrode region of the conducting wire connection on same base material；
Described metal terminal one end presses the conducting wire that base material is connected in the platinum electrode region.
10. exhaust temperature sensor according to claim 7, it is characterised in that
The exhaust temperature sensor also includes wire harness protection pipe, terminal support；
The terminal support is used to support the metal terminal, the elasticity pressing of metal terminal one end is connected leading on base material left part
Electric line；
The wire harness protection pipe, is set in outside the installed part left end, terminal support and metal terminal.
11. exhaust temperature sensor according to claim 10, it is characterised in that
The wire harness protection pipe between the terminal support be provided with spring leaf.
12. exhaust temperature sensor according to claim 10, it is characterised in that
Metal terminal in the wire harness protection pipe left part is filled with insulating bushing with wire harness junction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621461681.2U CN206601205U (en) | 2016-12-29 | 2016-12-29 | Exhaust temperature sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621461681.2U CN206601205U (en) | 2016-12-29 | 2016-12-29 | Exhaust temperature sensor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206601205U true CN206601205U (en) | 2017-10-31 |
Family
ID=60148746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621461681.2U Active CN206601205U (en) | 2016-12-29 | 2016-12-29 | Exhaust temperature sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206601205U (en) |
-
2016
- 2016-12-29 CN CN201621461681.2U patent/CN206601205U/en active Active
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