Flat-tube protective sleeve sheet-type temperature sensor and manufacturing method thereof
A technology of temperature sensor and protective cover, applied in thermometers, thermometer parts, thermometers with directly heat-sensitive electrical/magnetic components, etc. good performance, the overall performance of the sensor declines, etc., to achieve the effects of good sulfide reduction resistance, good skeleton processability, and good high temperature and low temperature resistance.
Active Publication Date: 2015-10-28
ANHUI TIAN CHANG INSTR FACTORY
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Problems solved by technology
The main defects of the temperature sensor of this structure are: 1. The shell material of the protective cover is too thin, generally less than 0.1 mm, and the strength is not enough. At the same time, because it belongs to the ultra-thin steel sheet, its welding and processing technology is not good; 2. Sensor protection Welding in the length direction of the sleeve requires extremely high manufacturability and leaves hidden dangers in the weld seam. When bending is required, the weld seam is prone to cracks and poor reliability; Expansion occurs, and the overall performance of the sensor decreases; in view of the above-mentioned technical and quality defects, the development and application of this type of sheet temperature sensor are limited
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[0028] Such as figure 1 , 2 , 3, 4 shown, figure 1 It is a structural schematic diagram of a thin-film temperature sensor with a flat tube protective sleeve proposed by the present invention. figure 2 It is a structural schematic diagram of the seamless stainless steel flat tube protection sleeve with a plug piece proposed by the present invention. image 3 It is a flow chart of the preparation process of the seamless stainless steel flat tube protective sleeve proposed by the present invention. Figure 4 It is a flow chart of the preparation process of a thin-film temperature sensor with a flat tube protective sleeve proposed by the present invention.
[0029] refer to figure 1 , 2 , a kind of flat tube protective sleeve sheet type temperature sensor proposed by the present invention, including temperature detection element-platinum thermal resistance 4, compensation wire 3, thermal conductive silicone rubber filler 2, seamless stainless steel flat tube protective sleev...
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The invention discloses a flat-tube protective sleeve sheet-type temperature sensor comprising a temperature detection element (platinum thermal resistor), a compensation conductor, thermal conductive silicone rubber filler, a seamless stainless steel flat-tube protective sleeve, and a plug. The ratio of the width to height of the seamless stainless steel flat-tube protective sleeve is 2-15:1. The compensation conductor includes a wire and a sheath coating the wire. The platinum thermal resistor is arranged in the seamless stainless steel flat-tube protective sleeve in a fitting manner. One end of the wire is connected with the platinum thermal resistor through electric arc welding, and the other end of the wire extends out of the seamless stainless steel flat-tube protective sleeve. The thermal conductive silicone rubber filler fills the gap between the seamless stainless steel flat-tube protective sleeve and the compensation conductor and the gap between the seamless stainless steel flat-tube protective sleeve and the platinum thermal resistor. The plug is arranged in the end part of the end, away from the compensation conductor, of the seamless stainless steel flat-tube protective sleeve in a fitting manner. The two sides of the end part of the end, near the compensation conductor, of the seamless stainless steel flat-tube protective sleeve in the width direction are fixed through embossing and riveting. The invention further discloses a manufacturing method of the flat-tube protective sleeve sheet-type temperature sensor.
Description
technical field [0001] The invention relates to the technical field of temperature sensors, in particular to a sheet-type temperature sensor with a flat tube protective cover and a manufacturing method thereof. Background technique [0002] Many important moving components have to do high-speed rotation or linear motion under the drag of external force, such as motor windings of motor vehicles, wind power generator windings, generator windings and bearing bush components, etc. These mechanisms will generate temperature during high-speed operation With the change of operating time or operating conditions, the temperature also rises proportionally. Due to the limitation of materials and working properties, this temperature rise can only be controlled below the index allowed by the technology. If the temperature rises without restriction, it will cause the failure of the equipment or even Cause vicious accidents, so the design unit pays close attention to the temperature rise o...
Claims
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Inventor 闵玉军赵新明丰振明周以智郭晓飞陈明铃
Owner ANHUI TIAN CHANG INSTR FACTORY