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Temperature sensor

A technology of temperature sensor and sensor element, applied in the direction of thermometer, instrument, temperature measurement of moving fluid, etc., can solve the problems of complicated installation of temperature sensor, ceramic substrate kept in a certain position, etc., to achieve reduced deviation, simplified installation, simple The effect of installation

Inactive Publication Date: 2011-07-06
CONTINENTAL AUTOMOTIVE GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Furthermore, known temperature sensors are complex to install
Because the holding part wound by the net does not hold the ceramic substrate in a definite position

Method used

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Examples

Experimental program
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Embodiment Construction

[0023] figure 1 Shown is a temperature sensor 1 which is provided for measuring the temperature of the exhaust gas. The temperature sensor 1 has a longitudinally extending cylindrical housing 2 on which a circumferential retaining ring 3 is formed. The retaining ring 3 defines a stop up to which the housing 2 of the temperature sensor 1 can be inserted into the wall of the exhaust gas duct. For this purpose, a fitting can be formed on the exhaust gas line, into which fitting the temperature sensor 1 is inserted and in which fitting the temperature sensor 1 can be fixed, for example by means of a union nut.

[0024] Arranged inside the housing 2 is a thermistor 4 (Thermistor), which rests against the bottom 5 of the housing 2 . Thermistor 4 is in particular a negative temperature coefficient thermistor (Heissleiter), which is provided for measuring high temperatures in the range up to 1100° C. However, the thermistor 4 may also be a platinum resistor. Thermistor 4 is covere...

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PUM

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Abstract

The invention relates to a temperature sensor (1) comprising a sensor element (4) and being in contact with a housing (2) configured as a contact wire of the temperature sensor (1). A contact wire (6, 7, 10, 11) arranged inside the housing (2), is configured concentrically and is held under spring tension with an annular spring (10). For testing purposes, a testing resistor (9) being connected parallel to the sensor element (4) is proposed.

Description

technical field [0001] The invention relates to a temperature sensor for determining the temperature of exhaust gases of an internal combustion engine, having a temperature-sensitive sensor element arranged in a housing and a contact wire running inside the housing, which is connected to the sensor element. Background technique [0002] A temperature sensor of this type is already known from DE 101 58 529 A1. The known temperature sensor has a cylindrical housing which can be inserted into the wall of the exhaust gas duct. Through holes are provided at the end of the housing which can be inserted into the exhaust gas duct, through which exhaust gas can flow into the housing. A ceramic substrate extends within the housing, on which a thermistor is formed in the region of the through-opening. Furthermore, contact wires are formed on the ceramic substrate, which pass through a holding part arranged inside the housing. Contact clips are provided on the ends of the ceramic sub...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K7/21G01K7/25G01K13/02
CPCG01K7/25G01K13/02G01K7/21
Inventor 曼弗雷德·格莱赫尔斯特凡·海因里希
Owner CONTINENTAL AUTOMOTIVE GMBH