Temperature Sensor
A technology of temperature sensors and conductive parts, applied in thermometers, instruments, scientific instruments, etc., can solve the problems of not being able to reflect the actual temperature of the object to be measured, reducing the accuracy of temperature measurement, and poor sensitivity of temperature measurement. Improved heat transfer efficiency and small size
Active Publication Date: 2016-06-29
THINKING ELECTRONIC IND CO LTD
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Problems solved by technology
[0006] However, in actual temperature sensing, because the fixed sleeve 70 is in direct contact with the object to be measured, the heat energy must first be evenly transmitted to the entire fixed sleeve 70 before being transferred to the temperature sensing element 60
As mentioned in the preceding paragraph, the fixed sleeve 70 completely covers the entire temperature-sensing element. The fixed sleeve 70 is relatively large in volume, and it takes a long time for the heat energy to be evenly transmitted to the integral fixed sleeve 70. The measurement of the temperature-sensing element 60 The temperature time is also delayed, so the temperature measurement sensitivity is not good; in addition, if the fixed sleeve 70 itself has absorbed too much heat energy, the temperature data measured by the temperature sensing element 60 cannot reflect the actual temperature of the object to be measured. As a result, the accuracy of temperature measurement is reduced, and the magnitude of temperature error may increase
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[0049] Please refer to figure 1 and figure 2 As shown, the temperature sensor of the present invention mainly includes a casing 10, a temperature conducting member 20 and a temperature sensing element 30; according to the actual sensing method, the present invention may further include a first fixing piece 41, a second fixing piece Sheet 42 and a spring 50.
[0050] A channel is formed inside the sleeve 10, and a first through hole 11 and a second through hole 12 communicating with the channel are respectively formed at both ends, and a protruding limiting portion 13 is formed on the outer surface of the sleeve 10 , The limiting portion 13 of this embodiment is an annular flange.
[0051] The temperature conducting member 20 is arranged in the first through hole 11 of the aforementioned bushing 10, an accommodating chamber 21 is formed inside the temperature conducting member 20, and one end of the temperature conducting member 20 is a closed temperature-sensing portion 22...
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The present invention is a temperature sensor, which includes a hollow sleeve, a temperature conduction element and a temperature sensing element. The temperature conduction element is arranged at one end of the sleeve to contact the surface of the object to be measured. The temperature sensing element is A temperature sensing element, such as a thermistor, is arranged inside the temperature conducting part to indirectly measure the temperature data of the object to be measured; wherein, the temperature conducting part has the advantages of small volume and less constituent materials, so it has the advantages of temperature transmission The characteristics of fast and low heat energy absorption enable the internal temperature sensing element to quickly measure more accurate temperature data.
Description
technical field [0001] The invention relates to a temperature sensor, in particular to a temperature sensor that detects temperature data by contacting the surface of an object to be measured. Background technique [0002] Sensors (sensors, detectors) are widely used in many industrial technology fields, especially in applications involving automatic control. Different types of sensors are defined according to the physical parameters they sense, such as temperature, pressure, infrared, liquid, etc. Please refer to Figure 5 As shown, one of the existing temperature sensor structures mainly includes a temperature sensing element 60 and a fixed sleeve 70 . [0003] The fixed sleeve 70 is a long straight cylindrical pipe with the same diameter, and a hollow accommodating chamber 71 is formed inside, and one end of the fixed sleeve 70 is a closed end 72; the temperature sensing element 60 is completely arranged in the accommodating The inside of the chamber 71 , and the front e...
Claims
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IPC IPC(8): G01K7/02
Inventor 卢宜睦
Owner THINKING ELECTRONIC IND CO LTD