High-precision high-stability thermoelectric conduction harness connecting device
A connecting device, high-precision technology, used in high-stability conductive wire harnesses, high-precision fields, can solve the problems of poor linearity of electromotive force value, high price, poor temperature resistance, etc., to enhance thermal and electrical conduction performance, good stability and uniformity , the effect of strong antioxidant properties
Inactive Publication Date: 2012-09-12
昆山爱光电子有限公司
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Problems solved by technology
[0002] Thermocouple is one of the most commonly used temperature detection components in the industry. The traditional thermoelectric conduction harness has very little thermal power between medium and low temperature, and the measurement of temperature below 600 degrees is inaccurate. Poor linearity and expensive
[0003] Thirdly, the existing thermocouple wire harness has very little heating power between medium and low temperatures, so it cannot be continuously measured from -200 to 1300°C, its accuracy is low, and its temperature performance is poor, which makes it prone to abnormal connection performance under long-term conditions. And damage to connectors and thermocouple wires, etc., shortening its service life
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[0013] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further described below in conjunction with specific embodiments.
[0014] see figure 1 , the high-precision and high-stable thermoelectric conduction wire harness connection device of the present invention includes a high-performance thermocouple wire 1 and a connector 2 and a high-conduction metal part 3 inside the connector 2, and the high-performance thermocouple wire 1 is made of heat-resistant PVC The heat-resistant insulation layer and the two thermocouple wires wrapped in the heat-resistant insulation layer are the first thermocouple wire and the second thermocouple wire. The first thermocouple wire is a red thermocouple wire, which is used as the positive leg. Made of pure copper; the second thermocouple wire is white thermocouple wire, which is used as the negative leg and made of copper-nickel alloy, an...
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The invention discloses a high-precision high-stability thermoelectric conduction harness connecting device. The connecting device comprises a thermocouple line, a connector and a highly conductive metal piece which is arranged in the connector, wherein the thermocouple line comprises a heat-resistant insulating layer made of a polyvinyl chloride (PVC) material, and a first thermocouple line and a second thermocouple line which are wrapped in the heat-resistant insulting layer; the connector is respectively connected with the first thermocouple line and the second thermocouple line through the highly conductive metal piece; the first thermocouple line is a positive pin, and the core line of the first thermocouple line is made of pure copper; and the second thermocouple line is a negative pin, and the core line of the second thermocouple line is made of a copper-nickel alloy. The thermoelectric conduction performance is enhanced without changing the shape of the original harness connector, so that the connecting device has the advantages of high linearity, high thermo-electromotive force, high sensitivity, high stability, high uniformity, high oxidation resistance and the like, and can be used in an oxidizing inert atmosphere; a heat conduction effect is improved greatly; and even though the connecting device is used for a long time, the connectivity abnormality cannot be caused, and the phenomena of damage and the like of the connector and the thermocouple line can be avoided.
Description
technical field [0001] The invention relates to a thermoelectric conduction wire harness, in particular to a high-precision and high-stability conduction wire harness used in injection molding equipment. Background technique [0002] Thermocouple is one of the most commonly used temperature detection components in the industry. The traditional thermoelectric conduction harness has very little thermal power between medium and low temperature, and the measurement of temperature below 600 degrees is inaccurate. Poor linearity and expensive. [0003] Thirdly, the existing thermocouple wire harness has very little heating power between medium and low temperatures, so it cannot be continuously measured from -200 to 1300°C, its accuracy is low, and its temperature performance is poor, which makes it prone to abnormal connection performance under long-term conditions. As well as damage to connectors and thermocouple wires, etc., shortening its service life. Contents of the invent...
Claims
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IPC IPC(8): G01K7/02
Inventor 缪志洪
Owner 昆山爱光电子有限公司