CN202382879U - Thermal resistance - Google Patents
Thermal resistance Download PDFInfo
- Publication number
- CN202382879U CN202382879U CN2011204676227U CN201120467622U CN202382879U CN 202382879 U CN202382879 U CN 202382879U CN 2011204676227 U CN2011204676227 U CN 2011204676227U CN 201120467622 U CN201120467622 U CN 201120467622U CN 202382879 U CN202382879 U CN 202382879U
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- box body
- thermal resistance
- resistance
- protection pipe
- protection tube
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Abstract
Provided is a thermal resistance, comprising a conjunction box, a conjunction box body, a protection pipe, an inserting adapter piece, an inserting portion protection pipe, a resistance core, a heat conduction insulating inserts, a line-out hole, a binding post, and a ceramic wiring board, wherein the conjunction box cover is arranged upon the conjunction box body; two ends of the protection pipe are respectively connected with the conjunction box body and the inserting adapter piece; the inserting portion protection pipe is arranged upon the inserting adapter piece; the resistance core and the heat conduction insulating inserts are all arranged inside the inserting portion protection pipe; the conjunction box body is provided with the line-out hole; the ceramic wiring board is arranged inside the conjunction box body; and the binding post is arranged upon the ceramic wiring board. With the technical scheme composed of a protection pipe, an inserting adapter piece, and an inserting portion protection pipe, the thermal resistance of the utility model improves the temperature measuring scope and precision and features great anti-compression and flame-proof performance.
Description
Technical field
The utility model relates to a kind of thermal resistance, belongs to the temperature measurement technology field.
Background technology
Thermal resistance is the temperature variant detector unit of a kind of resistance value, and its principal feature is that measuring accuracy is high, stable performance.Existing thermal resistance mainly is divided into several types of plain edition thermal resistance, armoured thermal resistance, end face thermal resistance and flame-proof type thermal resistances.The thermal effect that the temperature-measurement principle of flame-proof type thermal resistance wherein is based on resistance is carried out thermometric, and promptly the characteristic that changes with variation of temperature of the resistance of resistive element as long as therefore measure the change in resistance of temperature-sensitive thermal resistance, just can be measured temperature.The at present main main material that adopts semiconductor thermistor as thermal resistance, but traditional semiconductor thermistor is because the restriction of self material behavior, causes the temperature range of its measurement less, measuring accuracy is lower, resistance to compression and the relatively poor problem of explosion insulation performance.
Summary of the invention
The purpose of the utility model be less for the temperature range that solves the measurement that existing thermal resistance exists, measuring accuracy is lower, resistance to compression and the relatively poor problem of explosion insulation performance, and then a kind of thermal resistance is provided.
The purpose of the utility model realizes through following technical scheme:
A kind of thermal resistance; Comprise: connector cover, terminal box body, protection tube, insertion adaptor, insertion section protection tube, resistance core body, heat conductive insulating inserts, wire hole, connection terminal and ceramic terminal block; Said connector cover is arranged on the said terminal box body; The two ends of said protection tube are connected with said insertion adaptor with said terminal box body respectively; Said insertion section protection tube is arranged on the said insertion adaptor, and said resistance core body and said heat conductive insulating inserts all are arranged in the protection tube of said insertion section, have wire hole on the said terminal box body; Said ceramic terminal block is arranged in the said terminal box body, and said connection terminal is arranged on the said ceramic terminal block.
The beneficial effect of the utility model: the flame proof scheme that the thermal resistance that the utility model provides is formed through protection tube, insertion adaptor and insertion section protection tube; Not only promote the temperature measurement range and the measuring accuracy of thermal resistance, and had resistance to compression preferably and explosion insulation performance.
Description of drawings
The structural representation of the thermal resistance that Fig. 1 provides for the embodiment of the utility model;
Fig. 2 is the terminal box back panel wiring structural representation partly that the embodiment of the utility model provides.
Embodiment
This embodiment provides a kind of thermal resistance; As illustrated in fig. 1 and 2; Comprise: connector cover 1, terminal box body 2, protection tube 3, insertion adaptor 4, insertion section protection tube 5, resistance core body 6, heat conductive insulating inserts 7, connection terminal 9 and ceramic terminal block 10, connector cover 1 is arranged on the terminal box body 2, and the two ends of protection tube 3 are connected with insertion adaptor 4 with terminal box body 2 respectively; Insertion section protection tube 5 is arranged on and inserts on the adaptor 4; Resistance core body 6 all is arranged in the insertion section protection tube 5 with heat conductive insulating inserts 7, and ceramic terminal block 10 is arranged in the terminal box body 2, and connection terminal 9 is arranged on the ceramic terminal block 10.
Concrete, in the inside of terminal box body 2 lead terminal is housed, on terminal box body 2, have wire hole and link to each other with the outside, the lower end of terminal box body 2 is provided with a hole and is connected with protection tube 3.The outside of insertion section protection tube 5 contacts with measured medium; Resistance core body 6 is equipped with in inside; Corresponding resistance core body 6 can adopt platinum, and adopting platinum is to greatest extent the medium temperature conversion of signals to be become resistance signal as the advantage of resistance core body, to improve the measurement range and the measuring accuracy of thermal resistance; One end of protection tube 3 is connected with terminal box body 2, and the other end of protection tube 3 is connected with insertion adaptor 4.
Further; As shown in Figure 1; Can on the thermal resistance that this embodiment provides, increase connector cover anticreep chain 11; The two ends of connector cover anticreep chain 11 are separately positioned on connector cover 1 and the terminal box body 2, can not break away from when becoming flexible because of the external force generation to guarantee connector cover 1 and terminal box body 2, with the reliability of raising thermal resistance.
The technical scheme that adopts this embodiment to provide; Flame proof scheme through protection tube, insertion adaptor and insertion section protection tube composition; Not only promoted the temperature measurement range and the measuring accuracy of thermal resistance, and had resistance to compression preferably and explosion insulation performance, its major parameter is following:
1, temperature measurement range :-200 ℃～420 ℃
2, accuracy error:
A level resistance: △ t ℃=± (0.30+0.002|t|)
B level resistance: △ t ℃=± (0.30+0.005|t|)
" t " is the observed temperature absolute value of temperature-sensing element in the formula.
3, power supply constant-current supply :≤1.5mA
4, thermal response time:
When the step variation appearred in temperature, the output variation of thermal resistance was equivalent to 50% of this step variation, and the needed time is called thermal response time, representes with t0.5.
The above; Be merely the preferable embodiment of the utility model; But the protection domain of the utility model is not limited thereto; Any technician who is familiar with the present technique field is in the technical scope that the utility model discloses, and the variation that can expect easily or replacement all should be encompassed within the protection domain of the utility model.Therefore, the protection domain of the utility model should be as the criterion with the protection domain of claims.
Claims (3)
1. thermal resistance; Comprise: connector cover, terminal box body, protection tube, insertion adaptor, insertion section protection tube, resistance core body, heat conductive insulating inserts, wire hole, connection terminal and ceramic terminal block; It is characterized in that; Said connector cover is arranged on the said terminal box body, and the two ends of said protection tube are connected with said insertion adaptor with said terminal box body respectively, and said insertion section protection tube is arranged on the said insertion adaptor; Said resistance core body and said heat conductive insulating inserts all are arranged in the protection tube of said insertion section; Have wire hole on the said terminal box body, said ceramic terminal block is arranged in the said terminal box body, and said connection terminal is arranged on the said ceramic terminal block.
2. thermal resistance according to claim 1 is characterized in that, said thermal resistance also comprises connector cover anticreep chain, and the two ends of said connector cover anticreep chain are separately positioned on said connector cover and the said terminal box body.
3. thermal resistance according to claim 1 and 2 is characterized in that, said resistance core body adopts the alloy platinum material manufacturing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204676227U CN202382879U (en) | 2011-11-22 | 2011-11-22 | Thermal resistance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204676227U CN202382879U (en) | 2011-11-22 | 2011-11-22 | Thermal resistance |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202382879U true CN202382879U (en) | 2012-08-15 |
Family
ID=46631374
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204676227U Expired - Fee Related CN202382879U (en) | 2011-11-22 | 2011-11-22 | Thermal resistance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202382879U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568201A (en) * | 2015-01-04 | 2015-04-29 | 安徽蓝德仪表有限公司 | Thermal resistor |
-
2011
- 2011-11-22 CN CN2011204676227U patent/CN202382879U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568201A (en) * | 2015-01-04 | 2015-04-29 | 安徽蓝德仪表有限公司 | Thermal resistor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120815 Termination date: 20141122 |
|
| EXPY | Termination of patent right or utility model |