CN206496848U - Exhaust gas temperature sensor end encapsulating structure - Google Patents
Exhaust gas temperature sensor end encapsulating structure Download PDFInfo
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- CN206496848U CN206496848U CN201720013660.2U CN201720013660U CN206496848U CN 206496848 U CN206496848 U CN 206496848U CN 201720013660 U CN201720013660 U CN 201720013660U CN 206496848 U CN206496848 U CN 206496848U
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- thermometric
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- connecting line
- end housing
- shell
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Abstract
The utility model provides a kind of exhaust gas temperature sensor end encapsulating structure, including thermometric end housing, thermometric sensing element, connecting line, connecting line shell and insulating spacer.The thermometric end housing is with connecting line shell by being welded to connect；The thermometric sensing element is placed in thermometric end housing and is connected with connecting lead wire；The insulation burst is placed between lead and shell, it is ensured that the insulation characterisitic between lead and between lead and thermometric end housing；The fine and close thermal conductive insulation glue of filling in the thermometric end housing, by the fixation of thermometric sensing element and thermometric end housing, it is ensured that the antivibration and thermal response property of sensor.This structure disclosure satisfy that the thermometric requirement within 1000 DEG C.
Description
Technical field
The utility model is related to car combustion engine exhaust temperature sensor, is specifically related to a kind of delivery temperature sensing
The encapsulating structure of device end.
Background technology
In order to meet Diesel engine state four and above emission regulation demands, mainly there are two kinds of solution party for gas extraction system
Case：One is, by using SCR technology, the nitrogen oxides in tail gas to be handled using urea liquid；It is another
Plant is that, by particle trapper or particulate catalyst converter, the waste gas that the particulate produced for burning is handled recycles skill
Art.Two above-mentioned class schemes are required for detecting temperature, and feed back to system, and discharge is handled to reach by system
Discharge standard, and require that temperature-measuring range reaches 1000 DEG C.Thus need to be monitored in real time using pyrostat.
The end encapsulating structure of current exhaust gas temperature sensor, generally comprises metal shell, thermometric sensing element, connection
Line and connecting line shell.Wherein, thermometric sensing element is placed in metal shell after being connected with connecting lead wire；Metal shell is with being connected
Powder filler is used to fix thermometric sensing element in line shell formation airtight cavity, cavity.Following ask occurs in such structure
Topic：(1) in order to ensure thermal response property, the general diameter design of metal shell is smaller, thermometric sensing element lead and connecting line
Load after lead connection in metal shell, the gap between lead and shell and between lead and lead is very small, if not
The spacing between lead and shell and lead and lead can be controlled well, can be occurred assemble over there after between lead and shell
Or it is short-circuit between lead and lead, so as to cause sensor failure.And this failure may be during sensor assembling
May not occur, but cause wire locations to change due to the presence of vibration environment during client use, that
It will fail.Therefore this encapsulating structure reliability is not high, and in manufacturing process, for gap between lead
Control requires very high；(2) the powder generally MgO filled in cavity, the degree of packing after filling is difficult in assembling process
Control, if there is the MgO degree of packing it is inadequate when, then fixation can not be played to thermometric sensing element, may be led when serious
Product is caused to produce broken string in vibration processes.
Utility model content
Technical problem to be solved in the utility model is that overcoming problems of the prior art, there is provided one kind row
Temperature degree sensor end encapsulating structure.
Exhaust gas temperature sensor end encapsulating structure, including thermometric end housing, thermometric sensing element, connecting line, connecting line
Shell, insulating spacer and thermostable heat-conductive insulating cement, the thermometric end housing form closed chamber with connecting line shell by welding
Body；The thermometric sensing element is connected with connecting line, is placed in the airtight cavity that thermometric end housing is formed with connecting line shell；
The insulating spacer is placed between lead and shell and lead and housing；The thermometric end housing is formed with connecting line shell
Cavity in be filled with and be used to fix the thermostable heat-conductive insulating cement of thermometric sensing element.
Thermometric end housing is welded with connecting line shell by metal.Such as weldering of laser welding, electron beam, argon arc welding welding side
Formula, it is ensured that internal cavity air-tightness and resistance to elevated temperatures.
The thermometric sensing element lead is resistance welding or laser welding with connecting line lead connected mode or crimped
One of which.Ensure connection reliability and resistance to elevated temperatures.
The insulating spacer is loading survey after the semicircular structure of central aperture, two panels semicircle insulating spacer isolation lead
In warm end housing.
The insulating spacer is sheet form, is placed between lead, and lead is adjacent to thin slice；So as to ensure lead and shell
Gap between body.
Beneficial effect, exhaust gas temperature sensor end described in the utility model encapsulating structure, reliability is high, and thermometric is sensitive
Element good fixing effect, convenient processing and manufacture is quick, enormously simplify the manufacturing process of product.This structure disclosure satisfy that 1000 DEG C
Within thermometric requirement.
Brief description of the drawings
Describe the utility model in detail with reference to the accompanying drawings and detailed description；
Fig. 1 is exhaust gas temperature sensor thermometric end encapsulating structure schematic diagram described in the utility model.
Fig. 2 is the exhaust gas temperature sensor thermometric end encapsulating structure that insulating spacer described in the utility model is sheet form
Schematic diagram.
Embodiment
In order that technological means, creation characteristic, reached purpose and effect that the utility model is realized are easy to understand, under
Face combines and is specifically illustrating, and the utility model is expanded on further.
Referring to Fig. 1, the utility model is a kind of exhaust gas temperature sensor thermometric end encapsulating structure, including thermometric end housing 1,
Thermometric sensing element 2, connecting line 3, connecting line shell 4, insulating spacer 5, thermostable heat-conductive insulating cement 6.Thermometric sensing element 2 is wrapped
Containing lead 21.
Thermometric end housing 1 and connecting line shell 4 are made by high temperature resistant stainless steel, weld to form closed chamber by metal
Body, welding manner includes but is not limited to laser welding, electron beam weldering, argon arc welding.
Thermometric sensing element 2 is linked together by two leads 21 respectively at two connecting lines 3, in order to meet engine
The use requirement of 1000 DEG C of highest is vented, lead connected mode includes but is not limited to electric resistance welding, Laser Welding, crimping mode.Connection
Thermometric sensing element 2 afterwards is placed in the airtight cavity that thermometric end housing 1 and connecting line shell 4 are formed, defeated by connecting line 3
Go out temperature signal.
Insulating spacer 5 is placed in the airtight cavity that thermometric end housing 1 and connecting line shell 4 are formed, by the sensitive member of thermometric
Between part lead 21 and thermometric end housing 1 barrier open, so as to ensure the insulation characterisitic of sensor.Partition can be provided with holes for centre
Semicircular structure.In assembling, the semicircle partition of two panels is isolated after lead and loaded in thermometric end housing, so as to ensure to survey
Between temperature sensitive component lead 21 and thermometric end housing 1 barrier open.
Meanwhile, insulating spacer 5 can have a more simplified structure, as sheet form, as shown in Figure 2., will in assembling
Insulating spacer 5 is placed between thermometric sensing element lead 21, two thermometric sensing element leads 21 is close to insulating spacer 5, from
And ensure the gap between thermometric sensing element lead 21 and thermometric end housing 1.
Filling thermostable heat-conductive insulating cement 6 in the airtight cavity that thermometric end housing 1 and connecting line shell 4 are formed, so that
Play fixed thermometric sensing element, ensure the purpose of heat-conductive characteristic.This structure disclosure satisfy that the thermometric requirement within 1000 DEG C.
General principle of the present utility model, principal character and advantage of the present utility model has been shown and described above.One's own profession
The technical staff of industry is it should be appreciated that the utility model is not restricted to the described embodiments, described in above-described embodiment and specification
Simply illustrate principle of the present utility model, the utility model can also on the premise of the utility model spirit and scope are not departed from
There are various changes and modifications, these changes and improvements are both fallen within the range of claimed the utility model.The utility model is special
The claimed scope of profit is defined by appended claims and its equivalent.
Claims (5)
1. exhaust gas temperature sensor end encapsulating structure, it is characterized in that, including thermometric end housing, thermometric sensing element, connecting line,
Connecting line shell, insulating spacer and thermostable heat-conductive insulating cement, the thermometric end housing are formed with connecting line shell by welding
Airtight cavity；The thermometric sensing element is connected with connecting line, and be placed in that thermometric end housing and connecting line shell formed is closed
In cavity；The insulating spacer is placed between lead and shell and lead and housing；Outside the thermometric end housing and connecting line
The thermostable heat-conductive insulating cement for being used for fixing thermometric sensing element is filled with the cavity that shell is formed.
2. exhaust gas temperature sensor end according to claim 1 encapsulating structure, it is characterized in that, thermometric end housing is with being connected
Line shell is welded by metal；The metal is welded as the one of which of laser welding or electron beam weldering or argon arc welding.
3. exhaust gas temperature sensor end according to claim 1 encapsulating structure, it is characterized in that, the thermometric sensing element
Lead is resistance welding or laser welding or the one of which crimped with connecting line lead connected mode.
4. exhaust gas temperature sensor end according to claim 1 encapsulating structure, it is characterized in that, during the insulating spacer is
Between perforate semicircular structure, two panels semicircle insulating spacer isolation lead after load thermometric end housing in.
5. exhaust gas temperature sensor end according to claim 1 encapsulating structure, it is characterized in that, the insulating spacer is thin
Sheet form, is placed between lead, and lead is adjacent to thin slice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720013660.2U CN206496848U (en) | 2017-01-06 | 2017-01-06 | Exhaust gas temperature sensor end encapsulating structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720013660.2U CN206496848U (en) | 2017-01-06 | 2017-01-06 | Exhaust gas temperature sensor end encapsulating structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206496848U true CN206496848U (en) | 2017-09-15 |
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ID=59803115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720013660.2U Active CN206496848U (en) | 2017-01-06 | 2017-01-06 | Exhaust gas temperature sensor end encapsulating structure |
Country Status (1)
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| CN (1) | CN206496848U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2562149A (en) * | 2017-04-24 | 2018-11-07 | Boeing Co | Apparatus and method for emulating temperature during a thermal cure cycle |
| CN109752112A (en) * | 2019-01-23 | 2019-05-14 | 浙江泰索科技有限公司 | A kind of high temperature resistant antivibration exhaust gas temperature sensor |
| CN109813454A (en) * | 2019-01-23 | 2019-05-28 | 浙江泰索科技有限公司 | High temperature conjunction stick containing half-sectional tubulose middle conductor and detector as made from it |
| CN110553741A (en) * | 2019-09-25 | 2019-12-10 | 河南艾姆特新能源科技有限公司 | Temperature sensor |
-
2017
- 2017-01-06 CN CN201720013660.2U patent/CN206496848U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2562149A (en) * | 2017-04-24 | 2018-11-07 | Boeing Co | Apparatus and method for emulating temperature during a thermal cure cycle |
| GB2562149B (en) * | 2017-04-24 | 2020-01-01 | Boeing Co | Apparatus and method for emulating temperature during a thermal cure cycle |
| US10800072B2 (en) | 2017-04-24 | 2020-10-13 | The Boeing Company | Apparatus and method for emulating temperature during a thermal cure cycle |
| US11338480B2 (en) | 2017-04-24 | 2022-05-24 | The Boeing Company | Apparatus and method for emulating temperature during a thermal cure cycle |
| CN109752112A (en) * | 2019-01-23 | 2019-05-14 | 浙江泰索科技有限公司 | A kind of high temperature resistant antivibration exhaust gas temperature sensor |
| CN109813454A (en) * | 2019-01-23 | 2019-05-28 | 浙江泰索科技有限公司 | High temperature conjunction stick containing half-sectional tubulose middle conductor and detector as made from it |
| CN110553741A (en) * | 2019-09-25 | 2019-12-10 | 河南艾姆特新能源科技有限公司 | Temperature sensor |
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