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Sensor high-temperature radiation prevention device

A radiation device and sensor technology, applied in the direction of mufflers, exhaust devices, machines/engines, etc., can solve problems such as exhaust pipe envelope heat insulation, achieve compact structure, compact vehicle layout, and reduce manufacturing costs

Pending Publication Date: 2020-12-25
GUANGXI YUCHAI MASCH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a sensor high temperature radiation protection device, which solves the problems caused by the envelope heat insulation method of the exhaust pipe in the existing structure, and realizes a high-efficiency and low-cost sensor by installing a heat shield on the sensor toward the direction of the exhaust pipe Anti-high temperature radiation, prevent the heat energy of the exhaust pipe from radiating to the sensor, ensure that the temperature around the sensor is within the normal operating temperature, and ensure the safe and reliable operation of the sensor

Method used

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  • Sensor high-temperature radiation prevention device
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  • Sensor high-temperature radiation prevention device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A sensor anti-high temperature radiation device, such as image 3 As shown, it is arranged between the temperature sensor 1 and the exhaust pipe 2, the temperature sensor 1 is installed on the upper part of the engine body 4 through the sensor mount 3, and the exhaust pipe 2 is arranged above the temperature sensor 1,

[0027] Such as figure 1 and figure 2 As shown, this embodiment includes a heat shield 5, the heat shield 5 is constructed as a sheet metal structure, the heat shield 5 includes an upwardly protruding temperature sensor compartment 501 and is connected under the temperature sensor compartment 501 The mounting plate 502 on the outside of the direction, the temperature sensor 1 is arranged in the temperature sensor compartment 501, the mounting plate 502 is provided with a first through hole 503, and the sensor mounting seat 3 is provided with a second through hole 301 , the first through hole 503 matches the second through hole 301 .

[0028] In this e...

Embodiment 2

[0030] Such as figure 1 and figure 2 As shown, a sensor high temperature radiation protection device is arranged between the temperature sensor 1 and the exhaust pipe 2, the temperature sensor 1 is installed on the upper part of the engine body 4 through the sensor mounting seat 3, and the exhaust pipe 2 is arranged on the Above the temperature sensor 1, a heat shield 5 is included, and the heat shield 5 is constructed as a sheet metal structure. The heat shield 5 includes an upwardly protruding temperature sensor compartment 501 and a The mounting plate 502 on the outside of the downward direction, the temperature sensor 1 is arranged in the temperature sensor compartment 501, the mounting plate 502 is provided with a first through hole 503, and the sensor mounting seat 3 is provided with a second through hole 301, the first through hole 503 matches the second through hole 301.

[0031] Such as figure 1 As shown, in this embodiment, the plane where the mounting plate 502 ...

Embodiment 3

[0039]The difference between this embodiment and the above-mentioned embodiment 2 is: in this embodiment, the gap between the inner wall of the temperature sensor chamber 501 and the outer envelope of the temperature sensor 1 is 5mm, and this size mainly ensures the separation of the temperature sensor 1. Thermal spacing for improved insulation without over-dimensioning. The installation plate 502 is provided as one, which is beneficial to reduce the cost.

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Abstract

The invention relates to the technical field of engine parts, in particular to a sensor high-temperature radiation prevention device. The device comprises a heat shield, wherein the heat shield is configured to be of a sheet metal part structure, the heat shield comprises a temperature sensor bin protruding upwards and a mounting plate connected to the lower portion of the temperature sensor bin,a temperature sensor is arranged in the temperature sensor bin, a first through hole is formed in the mounting plate, a second through hole is formed in a sensor mounting seat, and the first through hole matches the second through hole. The problems brought by an exhaust pipe enveloping heat insulation method in an existing structure are solved, the heat shield is installed on the sensor in a direction facing an exhaust pipe, high-efficiency and low-cost sensor high-temperature radiation prevention is achieved, heat energy of the exhaust pipe is prevented from being radiated to the sensor, itis guaranteed that a temperature around the sensor is within the normal use temperature, and safe and reliable operation of the sensor is ensured.

Description

technical field [0001] The invention relates to the technical field of engine components, in particular to a sensor high temperature radiation protection device. Background technique [0002] In existing automobiles, the engine is becoming more and more electrified and electronically controlled, and the use of sensors will also increase. However, the requirements for the use of sensors are relatively strict on the surrounding environment, and excessive temperature will cause Sensor failed. The traditional sensor heat insulation method prevents the heat from radiating to the sensor by enveloping the exhaust pipe. The temperature is within a reasonable range, thus effectively protecting the sensor. [0003] For example, Chinese patent CN206707820U discloses a natural gas engine exhaust pipe heat shield. The heat shield is arranged on the outer wall of the exhaust pipe of the engine. The heat shield includes an inner heat insulation layer and an outer cladding layer. On the ...

Claims

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Application Information

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IPC IPC(8): F01N13/14F01N13/16F01N13/18F02B77/08
CPCF01N13/14F01N13/16F01N13/18F02B77/089
Inventor 黎光陈小峰
Owner GUANGXI YUCHAI MASCH CO LTD