CN205079881U - Exhaust gas temperature sensor - Google Patents

Exhaust gas temperature sensor Download PDF

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Publication number
CN205079881U
CN205079881U CN201520870710.XU CN201520870710U CN205079881U CN 205079881 U CN205079881 U CN 205079881U CN 201520870710 U CN201520870710 U CN 201520870710U CN 205079881 U CN205079881 U CN 205079881U
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China
Prior art keywords
shell
capillary
platinum resistance
kapillary
middle section
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Active
Application number
CN201520870710.XU
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Chinese (zh)
Inventor
周健
陆小红
蒋严严
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WUXI SHENGBANG ELECTRONICS CO Ltd
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WUXI SHENGBANG ELECTRONICS CO Ltd
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Priority to CN201520870710.XU priority Critical patent/CN205079881U/en
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Publication of CN205079881U publication Critical patent/CN205079881U/en
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Abstract

The utility model relates to an exhaust gas temperature sensor, including the middle section, the capillary has been inserted to the inside in middle section, the capillary stretches out the bottom in middle section, fill high -purity magnesium oxide between capillary and the middle section, there is the shell middle section bottom still parcel, be connected with the platinum resistance on the capillary of shell inside fill the heat -conducting glue between platinum resistance and the shell, the platinum resistance passes through the capillary and is connected with the connector, connector and connector assembly. Can glue by thermal insulation through fill the high -termal conductivity between platinum resistance and shell, sensor insulating properties is good, and the reliability is high and the thermal response is fast. The platinum resistance passes through the capillary with the connector to be connected, reduces solder joint quantity, greatly increased sensor reliability. Fill high -purity magnesia between capillary and the shell, guarantee product insulating properties. Through the rain -proof stopper of scarf joint on the plug, prevent effectively that the terminal of plug from exporting phenomenons such as short circuit, electric leakage in addition, guarantee that product functional safety is reliable, reach the protection requirement of auto vendor.

Description

A kind of exhaust gas temperature sensor
Technical field
The utility model relates to car accessories technical field, especially a kind of temperature detection for catalyst converter in automobile SCR exhaust treatment system, and temperature signal is converted into resistance signal, outputs to the exhaust gas temperature sensor of ECU.
Background technology
Auto exhaust temperature sensor is arranged on catalytic muffler, and measuring delivery temperature, is the important component part of SCR exhaust treatment system.Sensor effect is the temperature of monitoring catalyst converter, feeds back to ECU process, makes engine combustion more efficient more thorough, within making engine pm emission be reduced to limit value, reduces and pollute.At present this sensor is import parts substantially, and this domestic sensor is not also released, and import parts is difficult to the Production requirement meeting domestic correspondent because of cost, delivery cycle etc.Along with country releases the pressure of Ou Si emission standard, this sensor use amount will inevitably increase year by year, therefore in the urgent need to designing a kind of exhaust gas temperature sensor detecting catalyst temperature in SCR exhaust treatment system.
Utility model content
The applicant, for the shortcoming in above-mentioned existing production technology, provides a kind of exhaust gas temperature sensor, thus makes it can output signal to ECU, has the advantage that output reliability is good, structure is simple and thermal response is fast.
The technical scheme that the utility model adopts is as follows:
A kind of exhaust gas temperature sensor, comprise stage casing, the inside in described stage casing is inserted with kapillary, described kapillary stretches out the bottom in stage casing, fill high-purity magnesium oxide between described kapillary and stage casing, bottom described stage casing, be also enclosed with shell, the kapillary of described enclosure is connected with described in platinum resistance and fills heat-conducting glue between platinum resistance and shell, described platinum resistance is connected with unitor by kapillary, and described unitor is connected with plug.
Its further technical scheme is:
The cross section of described shell becomes step structure;
Described kapillary adopts hollow-core construction, and the pin of described platinum resistance inserts in the through hole of kapillary;
Described kapillary is connected with unitor by laser bonding.
The beneficial effects of the utility model are as follows:
The utility model structure is simple, easy to use.The utility model by filling high thermal conductivity thermal plastic insulation, sensor good insulation preformance between platinum resistance and shell, and reliability is high and thermal response is fast.Platinum resistance is connected by kapillary with unitor, reduces number of welds, greatly increases sensor reliability.Fill high-purity magnesium oxide powder between kapillary and shell, ensure product insulating property.Additionally by rabbeting rainproof plug on plug, effectively preventing the phenomenon such as terminal output short-circuit, electric leakage of plug, ensureing that product function is safe and reliable, reaching the requirement of shelter of auto vendor.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Wherein: 1, stage casing; 2, platinum resistance; 3, heat-conducting glue; 4, kapillary; 5, high-purity magnesium oxide; 6, shell; 7, unitor; 8, plug.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described.
As shown in Figure 1, the exhaust gas temperature sensor of the present embodiment, comprise stage casing 1, the inside in stage casing 1 is inserted with kapillary 4, and kapillary 4 stretches out the bottom in stage casing 1, high-purity magnesium oxide 5 is filled between kapillary 4 and stage casing 1, also be enclosed with shell 6 bottom stage casing 1, the kapillary 4 of shell 6 inside be connected with platinum resistance 2, between platinum resistance 2 and shell 6, fill heat-conducting glue 3, platinum resistance 2 is connected with unitor 7 by kapillary 4, and unitor 7 is connected with plug 8.
The cross section of shell 6 becomes step structure.
Kapillary 4 adopts hollow-core construction, and the pin of platinum resistance 2 inserts in the through hole of kapillary 4.
Kapillary 4 is connected with unitor 7 by laser bonding.
In actual use procedure, by being arranged on by the utility model on the catalytic muffler of SCR exhaust treatment system, platinum resistance 2 temperature signal detected in catalyst converter is exported to ECU and is judged process, reduces and pollutes.
More than describing is to explanation of the present utility model, and be not the restriction to utility model, the utility model limited range, see claim, within protection domain of the present utility model, can do any type of amendment.

Claims (4)

1. an exhaust gas temperature sensor, it is characterized in that: comprise stage casing (1), the inside in described stage casing (1) is inserted with kapillary (4), described kapillary (4) stretches out the bottom of stage casing (1), high-purity magnesium oxide (5) is filled between described kapillary (4) and stage casing (1), bottom, described stage casing (1) is also enclosed with shell (6), the kapillary (4) that described shell (6) is inner is connected with between platinum resistance (2) described platinum resistance (2) and shell (6) and fills heat-conducting glue (3), described platinum resistance (2) is connected with unitor (7) by kapillary (4), described unitor (7) is connected with plug (8).
2. a kind of exhaust gas temperature sensor as claimed in claim 1, is characterized in that: the cross section of described shell (6) becomes step structure.
3. a kind of exhaust gas temperature sensor as claimed in claim 1, is characterized in that: described kapillary (4) adopts hollow-core construction, and the pin of described platinum resistance (2) inserts in the through hole of kapillary (4).
4. a kind of exhaust gas temperature sensor as claimed in claim 1, is characterized in that: described kapillary (4) is connected with unitor (7) by laser bonding.
CN201520870710.XU 2015-11-04 2015-11-04 Exhaust gas temperature sensor Active CN205079881U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201520870710.XU CN205079881U (en) 2015-11-04 2015-11-04 Exhaust gas temperature sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201520870710.XU CN205079881U (en) 2015-11-04 2015-11-04 Exhaust gas temperature sensor

Publications (1)

Publication Number Publication Date
CN205079881U true CN205079881U (en) 2016-03-09

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN201520870710.XU Active CN205079881U (en) 2015-11-04 2015-11-04 Exhaust gas temperature sensor

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CN (1) CN205079881U (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105697113A (en) * 2016-04-20 2016-06-22 北京汽车研究总院有限公司 Catalyst assembly and automobile
CN105716742A (en) * 2016-04-12 2016-06-29 瑞安市益华汽车配件有限公司 Temperature sensor for detecting automobile waste gas
CN107179134A (en) * 2017-07-19 2017-09-19 无锡威孚高科技集团股份有限公司 A kind of exhaust gas temperature sensor and its manufacture method
CN109764968A (en) * 2019-01-23 2019-05-17 浙江泰索科技有限公司 The high temperature conjunction stick and detector as made from it of the middle conductor of tubulose containing filled-type
CN110806275A (en) * 2018-08-06 2020-02-18 和谐工业有限责任公司 Exhaust gas temperature sensor
CN111272302A (en) * 2020-04-07 2020-06-12 华世德汽车电子智能制造(苏州)有限公司 Exhaust gas temperature sensor system

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105716742A (en) * 2016-04-12 2016-06-29 瑞安市益华汽车配件有限公司 Temperature sensor for detecting automobile waste gas
CN105697113A (en) * 2016-04-20 2016-06-22 北京汽车研究总院有限公司 Catalyst assembly and automobile
CN105697113B (en) * 2016-04-20 2018-06-29 北京汽车研究总院有限公司 A kind of catalytic converter assembly and automobile
CN107179134A (en) * 2017-07-19 2017-09-19 无锡威孚高科技集团股份有限公司 A kind of exhaust gas temperature sensor and its manufacture method
CN110806275A (en) * 2018-08-06 2020-02-18 和谐工业有限责任公司 Exhaust gas temperature sensor
US11624662B2 (en) 2018-08-06 2023-04-11 Unison Industries, Llc Exhaust gas temperature sensor
CN109764968A (en) * 2019-01-23 2019-05-17 浙江泰索科技有限公司 The high temperature conjunction stick and detector as made from it of the middle conductor of tubulose containing filled-type
CN111272302A (en) * 2020-04-07 2020-06-12 华世德汽车电子智能制造(苏州)有限公司 Exhaust gas temperature sensor system

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