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high temperature sensor

A high-temperature sensor and sensor chip technology, applied in the field of sensors, can solve problems such as excessive compression or tensile stress, different degrees of cold shrinkage, damage to internal components, etc., to achieve improved service life, good shock resistance, and simple preparation process. Effect

Active Publication Date: 2021-09-21
武汉神动汽车电子电器股份有限公司
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Problems solved by technology

[0002] In the preparation process of the existing high-temperature sensors for automobile exhaust, the lead wires and wires are generally bent beforehand, and then the lead wires and wires are welded or crimped. The process is complicated. In addition, due to the different The material expands or contracts in different degrees when heated, which can easily lead to excessive compressive or tensile stress between the internal parts of the high temperature sensor and the wires, resulting in damage to the internal parts

Method used

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Embodiment Construction

[0027] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings, so that those skilled in the art can implement it with reference to the description.

[0028] It should be understood that terms such as "having", "comprising" and "including" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0029] It should be noted that, in the description of the present invention, the terms "horizontal", "vertical", "upper", "lower", "front", "rear", "left", "right", "vertical", The orientation or positional relationship indicated by "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, and It is not to indicate or imply that the device or element referred to must have a particular orientati...

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Abstract

The invention discloses a high-temperature sensor, comprising: a casing, which has a closed end and an open end arranged oppositely; a temperature sensing chip, which is arranged in the closed end, and the temperature sensing chip is close to the open end. One side is provided with a lead; a thermally conductive material, which is filled in the closed end and covers the temperature sensing chip; a conduit, which extends into the open end and is fixedly connected with the open end; a wire, It is embedded in the conduit, and the side of the wire close to the open end protrudes from the conduit and extends into the interior of the housing; a sheath is provided inside the housing, the The sheath includes a first connection part, a telescopic part and a second connection part which are connected in sequence along its length direction, the first connection part is connected with the lead wire, the second connection part is connected with the wire, and the telescopic part is connected with the lead wire. The portion is retractable along the length of the sheath. The invention has the advantages of simple preparation process, good high temperature resistance and shock resistance, long service life and the like.

Description

technical field [0001] The invention relates to the field of sensors. More specifically, the present invention relates to a high temperature sensor. Background technique [0002] In the preparation process of the existing high-temperature sensors for automobile exhaust, the lead wires and wires are generally bent beforehand, and then the lead wires and wires are welded or crimped. The process is complicated. In addition, due to the different The material expands when heated or shrinks when cooled, which can easily lead to excessive compressive or tensile stress between the internal parts of the high-temperature sensor and the wires, resulting in damage to the internal parts. Contents of the invention [0003] An object of the present invention is to provide a high temperature sensor, which has simple preparation process, good high temperature resistance and shock resistance, long service life, and is suitable for detecting the temperature of automobile exhaust. [0004] ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01K7/18G01K1/08G01K1/12
CPCG01K1/08G01K1/12G01K7/18
Inventor 刘慧琳魏轶伟罗竟成刘凯
Owner 武汉神动汽车电子电器股份有限公司
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