Unlock instant, AI-driven research and patent intelligence for your innovation.

Ultra-thin type temperature sensor

A temperature sensor, ultra-thin technology, applied in thermometers, instruments, thermometers with direct heat-sensitive electric/magnetic elements, etc., can solve the problems of large thickness, limited application, and inapplicability of high-temperature measurement, etc., and achieve high conductivity coefficient, improving the temperature resistance characteristics, and the effect of high temperature resistance characteristics

Inactive Publication Date: 2018-11-30
深圳大图科创技术开发有限公司
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] NTC thermistor material is a sensitive material with a negative temperature coefficient, which has the advantages of fast response, low cost, small size, and high sensitivity. However, the NTC thermistor materials currently used are almost all made of Mn 3 o 4 、Co 3 o 4 , NiO and other transition metal oxides formed by solid solution of spinel ceramic materials, which are only suitable for temperature measurement below 300 ℃, not suitable for high temperature measurement, and the temperature sensor made of this material has a relatively thick thickness Large, which limits its specific application

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Ultra-thin type temperature sensor
  • Ultra-thin type temperature sensor

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0027] The preparation steps for the thermistor substrate described in the application are as follows:

[0028] Step 1, powder preparation

[0029] First, weigh the CaCO according to the stoichiometric ratio 3 、CuCO 3 , SnO 2 、TiO 2 、WO 3 Powder, using wet ball milling to mix the powder evenly and refine the powder, control the mass ratio of powder to zirconium balls to 1:3, and the mass ratio to deionized water to 1:2, the ball milling time is 10h, and the rotation speed is 350 rpm, put the slurry obtained by ball milling into a drying oven, dry at 90°C for 10 hours, and pre-burn the dried powder at 1158°C for 3 hours; then perform the second ball milling and drying, the method is the same as that of the first The first time is the same; after the second ball milling, the particle size is screened to obtain powder A;

[0030] Step 2, shell structure preparation

[0031] Add deionized water, emulsifier ammonium dodecylbenzenesulfonate, and polyoxyethylene octylphenol et...

Embodiment 1

[0043] A thermistor substrate, the thickness of the thermistor substrate is 100-300 μm, the length can be 400-500 μm, and the width can be 300-400 μm.

[0044] The thermistor substrate is a Ca-Cu-Sn-Ti-W-O-based NTC thermosensitive ceramic material with a core-shell structure, specifically, the core structure is CaWO 4 -0.2CuWO 4 -0.5SnTi 2 o 6 , the shell structure is TiO 2 .

[0045] The CaWO 4 -0.2CuWO 4 -SnTi 2 o 6 is made of CaCO 3 、CuCO 3 , SnO 2 、TiO 2 、WO 3 The powder is mixed by ball milling, calcined, and ball milled again, and its particle size is 5 μm.

[0046] The TiO 2 Prepared by hydrothermal method.

[0047] The preparation steps for the thermistor substrate described in the application are as follows:

[0048] Step 1, powder preparation

[0049] First, weigh the CaCO according to the stoichiometric ratio 3 、CuCO 3 , SnO 2 、TiO 2 、WO 3 Powder, using wet ball milling to mix the powder evenly and refine the powder, control the mass ratio of ...

Embodiment 2

[0061] A thermistor substrate, the thickness of the thermistor substrate is 100-300 μm, the length can be 400-500 μm, and the width can be 300-400 μm.

[0062] The thermistor substrate is a Ca-Cu-Sn-Ti-W-O-based NTC thermosensitive ceramic material with a core-shell structure, specifically, the core structure is CaWO 4 -0.2CuWO 4 -0.5SnTi 2 o 6 , the shell structure is TiO 2 .

[0063] The CaWO 4 -0.2CuWO 4 -SnTi 2 o 6 is made of CaCO 3 、CuCO 3 , SnO 2 、TiO 2 、WO 3 The powder is mixed by ball milling, calcined, and ball milled again, and its particle size is 15 μm.

[0064] The TiO 2 Prepared by hydrothermal method.

[0065] The preparation steps for the thermistor substrate described in the application are as follows:

[0066] Step 1, powder preparation

[0067] First, weigh the CaCO according to the stoichiometric ratio 3 、CuCO 3 , SnO 2 、TiO 2 、WO 3 Powder, using wet ball milling to mix the powder evenly and refine the powder, control the mass ratio of...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
Particle sizeaaaaaaaaaa
Thicknessaaaaaaaaaa
Diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to an ultra-thin type temperature sensor. The ultra-thin type temperature sensor comprises a thermistor substrate, a first metal wire, a second metal wire and packaging layers, wherein the first metal wire is welded to the first surface of the thermistor substrate, and the second metal wire is welded to the second surface of the thermistor substrate, wherein the first metal wire and the second metal wire clamp the thermistor substrate; the packaging layers are arranged outside the thermistor substrate, the first metal wire and the second metal wire; the packaging layers are transparent glass glaze layers; the thermistor substrate is of a core-shell structure and is based on Ca-Cu-Sn-Ti-W-O NTC thermosensitive ceramic material, specifically, the core structure is CaWO4-0.2 CuWO4-0.5 SnTi2O6, and the shell structure is TiO2.

Description

technical field [0001] The present application relates to the technical field of temperature sensors, in particular to an ultra-thin temperature sensor. Background technique [0002] Temperature is a basic physical quantity, and it is very common to measure temperature in real life and production. A temperature sensor is a sensor that senses temperature and converts temperature changes into a usable output signal. Temperature sensors are ubiquitous. Among them, heat-sensitive materials are the core of temperature sensors, which are extremely sensitive to temperature changes. Currently, the most widely used heat-sensitive materials include PTC heat-sensitive materials and NTC heat-sensitive materials. [0003] NTC thermistor material is a sensitive material with a negative temperature coefficient, which has the advantages of fast response, low cost, small size, and high sensitivity. However, the NTC thermistor materials currently used are almost all made of Mn 3 o 4 、Co 3...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): G01K7/22
CPCG01K7/223
Inventor 邱林新
Owner 深圳大图科创技术开发有限公司