CN2129925Y - Temperature probe for high resistance wire - Google Patents
Temperature probe for high resistance wire Download PDFInfo
- Publication number
- CN2129925Y CN2129925Y CN 92223345 CN92223345U CN2129925Y CN 2129925 Y CN2129925 Y CN 2129925Y CN 92223345 CN92223345 CN 92223345 CN 92223345 U CN92223345 U CN 92223345U CN 2129925 Y CN2129925 Y CN 2129925Y
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- CN
- China
- Prior art keywords
- resistive conductor
- high resistance
- temperature probe
- carbon
- high resistant
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Measuring Temperature Or Quantity Of Heat (AREA)
Abstract
The utility model discloses a temperature probe for high resistance wires, which comprises a semiconductor thermosensitive resistor (1) and a high resistance conductor (2). The high resistance conductor (2) comprises two temperature resistant plastic medium (3) and high resistance carbon films (4) on two sides. The high resistance carbon films (4) are made from the phenolic epoxy resin containing carbon by a certain thermal treatment process. The semiconductor thermosensitive resistor (1) and the high resistance conductor (2) are adhered by the conductive adhesive (5) composed of the phenolic epoxy resin containing carbon. The utility model has simple structure, good stability, strong flexibility and low cost, and can be used for the strong electromagnetic field and the microwave heating to conduct the temperature measurement without interference.
Description
The utility model relates to temperature measuring equipment, and more particularly, the utility model is about the resistive conductor temperature sensor.
As everyone knows, the temperature of inspected object is perhaps carried out thermometric under microwave or radio frequency conditions around strong-electromagnetic field, if use the wire sensor that contains metal ingredient, it will be interfered, thereby cisco unity malfunction.
American I EEE microwave theory and technology transactions in January, 1976 number, the 43rd～45 page, introduced a kind of resistive conductor temperature sensor, it is made of thick-film thermistor and vacuum carburization resistive conductor.The matrix of this resistive conductor is a kind of plastic lead wire, has four, carburizing on plastics; The plastic lead wire of thick-film thermistor and carburizing is bonding with mixing silver epoxy.The shortcoming of this resistive conductor sensor is, complex manufacturing technology, and mix the metal ingredient that in fact silver conductive adhesive has increased temperature detector, thereby stability and poor reliability.
The purpose of this utility model is to overcome shortcoming of the prior art, provide a kind of simple in structure, be easy to make, good stability, pliability resistive conductor temperature probe strong, with low cost, this resistive conductor only gets final product with two plastics.
Resistive conductor temperature probe of the present utility model comprises semiconductor thermistor ［ 1 ］, resistive conductor ［ 2 ］, described resistive conductor ［ 2 ］ is made of the high resistant carbon film ［ 4 ］ on two heatproof plastic mediums ［ 3 ］ and the both sides thereof, described high resistant carbon film ［ 4 ］ is formed by the certain Technology for Heating Processing of carbon containing novalac epoxy process, and described semiconductor thermistor ［ 1 ］ is bonding by the conducting resinl ［ 5 ］ that above-mentioned carbon containing novalac epoxy constitutes with resistive conductor ［ 2 ］.
Described two plastic mediums ［ 3 ］ are preferably cut by monoblock plastics and form near the end to it.Described carbon containing novalac epoxy is pressed 1:1～10(volume ratio by carbon black powders and novalac epoxy) constitute.The thickness and the width of described heatproof plastic medium ［ 3 ］ are preferably in more than 0.01 millimeter.The thickness of described high resistant carbon film ［ 4 ］ is advisable with 3～10 microns.
The utility model will be further described below in conjunction with accompanying drawing.
Fig. 1 is the structural drawing of the utility model resistive conductor temperature probe.
Fig. 2 is the side view of the utility model resistive conductor temperature probe.
In the drawings, ［ 1 ］ is thermistor, and present embodiment adopts negative tempperature coefficient thermistor, can certainly adopt the thermistor of positive temperature coefficient (PTC).［ 2 ］ be resistive conductor, it is made of the high resistant carbon film ［ 4 ］ on heatproof plastic medium ［ 3 ］ and the both sides thereof.［ 5 ］ be conducting resinl.［ 6 ］ be the lead-in wire of semiconductor thermistor.
Above-mentioned plastic medium ［ 3 ］ adopts two.It is the novalac epoxy of coating carbon dope on the both sides of plastics, cut then to its near the end, and form two.Certainly, also can coat the novalac epoxy of carbon dope respectively with two plastics on its both sides.The heatproof plastic medium can be selected polyimide, polysulfones, polyarylsulfone, polyester etc. for use.The thickness of plastic medium ［ 3 ］ and width are to be advisable more than 0.01 millimeter, and present embodiment adopts the polyester of 0.05 millimeter of thickness, 0.5 millimeter of width.The high resistant carbon film ［ 4 ］ on plastic medium ［ 3 ］ both sides is formed through certain Technology for Heating Processing by the novalac epoxy of carbon containing.Mix the carbon black powders of some in novalac epoxy, the incorporation of carbon black is decided according to required resistance, and usually with 1 part of carbon black, novalac epoxy 1～10 part (volume ratio) is advisable.Present embodiment adopts 1:2 carbon black powders and novalac epoxy to grind in bowl mill and forms high resistant carbon slurry, use shotcrete machine to be coated with carbon on the both sides of plastics ［ 3 ］ then, and the carbon film thickness of present embodiment is 5 microns.Again the plastics of coating carbon are put into baking oven, heated 6 hours down, promptly can be made into resistive conductor ［ 2 ］ at 170 ℃～180 ℃.This resistive conductor good stability, consistance height after four resistive conductor moulding.During ［ 2 ］ 1 meters long of resistive conductors, about 1.5 megohms of its resistance.
The metal lead wire of thermistor ［ 1 ］ should be lacked as far as possible.The lead-in wire of thermistor ［ 1 ］ and resistive conductor ［ 2 ］ are bonded together with the conducting resinl ［ 5 ］ that the novalac epoxy of above-mentioned carbon containing constitutes, the other end of resistive conductor ［ 2 ］ and fine wire extension line ［ 6 ］ are bonded together with the conducting resinl ［ 5 ］ that the novalac epoxy of carbon containing constitutes, the utility model resistive conductor temperature probe has promptly been made in the thermal treatment of heating under 180 ℃ then again.
At volume is 300 * 50 * 50mm
3A plastics cell in detect the performance of the utility model temperature probe.The microwave generator that adopts 915MHz and 2450MHz is as the Electromagnetic Interference source, and its output power is from 5W to 150W.Experimental result shows, microwave generator is closed, and when removing electromagnetic radiation, the temperature value that temperature probe is measured does not have visible saltus step.The temperature resolution of temperature probe is better than 0.1 ℃.
The utility model is simple in structure, easy to make, good stability, pliability are strong, and with low cost.It can be widely used in high-power transformer winding, heavy-duty motor winding and bearing shell, and the object around other strong-electromagnetic fields carries out glitch-free temperature detection, and it also can be widely used in microwave or rf wave and add and pine for heated material is carried out noiseless thermometric.
Claims (5)
1, a kind of resistive conductor temperature probe, contain semiconductor thermistor [1], resistive conductor [2], it is characterized in that, high resistant line [2] is made of the high resistant carbon film [4] on two heatproof plastic mediums [3] and the both sides thereof, described high resistant carbon film [4] is formed by the certain Technology for Heating Processing of carbon containing novalac epoxy process, and described semiconductor thermistor [1] is bonding by the conducting resinl [5] that above-mentioned carbon containing novalac epoxy constitutes with resistive conductor [2].
2, resistive conductor temperature probe according to claim 1 is characterized in that, described two plastic mediums ［ 3 ］ are cut by monoblock plastics and form near the end to it.
3, resistive conductor temperature probe according to claim 1 is characterized in that, described carbon containing novalac epoxy is pressed 1:1～10(volume ratio by carbon black powders and novalac epoxy) constitute.
4, resistive conductor temperature probe according to claim 1 is characterized in that, the thickness of described heatproof plastics ［ 3 ］ and width are more than 0.01 millimeter.
5, resistive conductor temperature probe according to claim 1 is characterized in that, the thickness of described high resistant carbon film ［ 4 ］ is 3～10 microns.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92223345 CN2129925Y (en) | 1992-06-04 | 1992-06-04 | Temperature probe for high resistance wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92223345 CN2129925Y (en) | 1992-06-04 | 1992-06-04 | Temperature probe for high resistance wire |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2129925Y true CN2129925Y (en) | 1993-04-14 |
Family
ID=33769192
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92223345 Expired - Fee Related CN2129925Y (en) | 1992-06-04 | 1992-06-04 | Temperature probe for high resistance wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2129925Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149295B (en) * | 2007-10-26 | 2010-05-19 | 天津工业大学 | Thermistor high resistance lead temperature sensor production method and interference-free temperature sensor |
| CN101995496A (en) * | 2009-08-07 | 2011-03-30 | 株式会社神户制钢所 | Contact probe pin |
| CN102288313A (en) * | 2011-08-15 | 2011-12-21 | 西北核技术研究所 | Method for bonding thermocouple with graphite piece |
-
1992
- 1992-06-04 CN CN 92223345 patent/CN2129925Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101149295B (en) * | 2007-10-26 | 2010-05-19 | 天津工业大学 | Thermistor high resistance lead temperature sensor production method and interference-free temperature sensor |
| CN101995496A (en) * | 2009-08-07 | 2011-03-30 | 株式会社神户制钢所 | Contact probe pin |
| CN101995496B (en) * | 2009-08-07 | 2013-04-10 | 株式会社神户制钢所 | Contact probe pin |
| CN102288313A (en) * | 2011-08-15 | 2011-12-21 | 西北核技术研究所 | Method for bonding thermocouple with graphite piece |
| CN102288313B (en) * | 2011-08-15 | 2013-01-16 | 西北核技术研究所 | Method for bonding thermocouple with graphite piece |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |