CN2645245Y - Thermocouple - Google Patents
Thermocouple Download PDFInfo
- Publication number
- CN2645245Y CN2645245Y CN 03255606 CN03255606U CN2645245Y CN 2645245 Y CN2645245 Y CN 2645245Y CN 03255606 CN03255606 CN 03255606 CN 03255606 U CN03255606 U CN 03255606U CN 2645245 Y CN2645245 Y CN 2645245Y
- Authority
- CN
- China
- Prior art keywords
- thermocouple
- wire
- thermal cutoffs
- temperature
- lead
- 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 relates to a thermocouple, comprises a thermocouple body, and is characterized in that: one of two lines of the thermocouple anode and cathode is connected in series with the temperature fuse. The temperature fuse is arranged on the line in the middle position of the thermocouple. The thermocouple can be connected in series with the line of the cathode, but also can be connected in series with the line of the anode. The utility model has the advantages of temperature protection, simple structure and is easy to manufacture, low-cost, easy-to-use and is suitable for temperature measurement devices use such as gas apparatus.
Description
Technical field
The utility model relates to a kind of thermocouple technical field.
Background technology
General thermocouple is made up of bimetal leaf (silk) and the two poles of the earth lead-in wire, promptly composite wire is arranged on the point for measuring temperature, point for measuring temperature from thermocouple passes the signal along to the lead-in wire of the thermoelectric potential signal of reflection by positive and negative polarities on the temperature indicator then, thereby measures temperature.If in the thermometric process of thermocouple; on point for measuring temperature or position apart from apparatus on the point for measuring temperature certain distance of thermocouple or device part; when the temperature overheating phenomenon occurring; thermocouple can't play a protective role to the apparatus of this thermocouple of adapted; thereby can not avoid ground breaking out of fire or abnormal accident; cause breaking-up equipment, can't produce, influence work, the serious entail dangers to life security of going back.Use on the combustion gas tool as thermocouple and to show; burnt gas valve is very easy to reveal combustion gas; cause local on fire sometimes; if there is not safeguard measure; not only make temperature measuring equipment damages such as thermocouple; and the user is known, the result causes bigger fire incident, so be necessary thermocouple is further improved design.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of thermocouple at existing background technology; when the device of this thermocouple of adapted or the temperature of apparatus local location need protection; take place in the position that will protect when overheated; the auto-cutout of thermocouple energy; temperature-measuring parts such as thermocouple had both been protected; can remind the user again, thereby avoid owing to device or the overheated abnormal accident that causes of apparatus local temperature.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of thermocouple, it includes the thermocouple body, it is characterized in that the wherein lead-in wire on thermocouple both positive and negative polarity two lead-in wires is in series with Thermal Cutoffs.
Above-mentioned Thermal Cutoffs is arranged on the lead-in wire in thermocouple centre position, and it can be connected on the negative wire, also can be to be connected on the positive wire, decides according to the characteristic of thermocouple.
Above-mentioned negative wire places in the insulated tube that itself and positive wire are kept apart, and Thermal Cutoffs is the buttress shaft shape, be through in another insulated tube, two ends respectively with the negative wire spot-welded on together.
Above-mentioned Thermal Cutoffs places the upper apparatus that is changed to this thermocouple of use of thermocouple lead need carry out the position at temperature protection position.
Compared with prior art; advantage of the present utility model is that this thermocouple is equipped with Thermal Cutoffs; this Thermal Cutoffs is connected on wherein lead-in wire of positive and negative polarities lead-in wires of thermocouple; and Thermal Cutoffs counted the position that apparatus needs temperature protection upper the installing of thermocouple lead; and the temperature range of Thermal Cutoffs designs as required; therefore when this thermocouple work; be equipped with the apparatus of this thermocouple or install its local occurrence temperature when overheated; as the valve of combustion gas tool reveal cause local when on fire; Thermal Cutoffs is fusing automatically; the electric loop that is connected with thermocouple is formed open circuit, make whole device be in closed condition, thereby avoided because the abnormal accident that local overheating causes; and this thermocouple structure is simple; make easily and produce, with low cost, easy to use.
Description of drawings
The structure cutaway view of Fig. 1 thermocouple of the present utility model;
Fig. 2 thermocouple partial structurtes of the present utility model enlarged drawing.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
Illustrate as Fig. 1-2, the utility model comprises thermocouple body 1, be in series with Thermal Cutoffs 11 on the negative wire 12 in the positive and negative polarities of thermocouple, certainly Thermal Cutoffs 11 also can be connected on the positive wire 16 of thermocouple, self character with thermocouple determines as required, generally Thermal Cutoffs 11 is arranged on the middle leads position of thermocouple relatively more appropriate, convenient production, prevent the accidental damage Thermal Cutoffs simultaneously, avoided some unnecessary spoilages.Be installed with insulated tube 13 on the negative wire 12 of thermocouple, thereby negative wire 12 and positive wire 16 are kept apart, avoid short circuit.Be built-in with negative wire 12 at insulated tube 13, Thermal Cutoffs 11 is the buttress shaft shape, and it is through in another insulated tube 14, avoid contacting with the positive wire of outside, the two ends of simultaneous temperature fuse 11 respectively with negative wire 12 spot-welded on together.The position that Thermal Cutoffs 11 is placed on the thermocouple lead is apparatus that uses this thermocouple or the position that device needs the temperature protection position; as on the combustion gas tool, point for measuring temperature 15 distances that make Thermal Cutoffs leave thermocouple are left the distance of point for measuring temperature 15 for need protection position such as burnt gas valve.
Operation principle of the present utility model is such: the temperature that causes apparatus protection position when the point for measuring temperature temperature is too high superheating phenomenon or other reason such as combustion gas occur and reveals the temperature that causes this apparatus protection position of catching fire when too high; the Thermal Cutoffs that is arranged on the temperature protection position can be because overheated temperature fuses; the circuit loop that is connected with thermocouple is formed to open circuit; signal is delivered to is abnormal signal on the temperature indicator; remind the user to protect the position abnormal conditions to occur; need emergency treatment; this signal can trigger the operating state that other protective device cuts out apparatus simultaneously; thereby protected temperature-measuring part and apparatuses such as thermocouple, can avoid the unexpected overheated accident that causes simultaneously.
Claims (6)
1, a kind of thermocouple, it includes the thermocouple body, it is characterized in that the wherein lead-in wire on thermocouple both positive and negative polarity two lead-in wires is in series with Thermal Cutoffs (11).
2, thermocouple according to claim 1 is characterized in that Thermal Cutoffs (11) is arranged on the lead-in wire in thermocouple centre position.
3, thermocouple according to claim 2 is characterized in that described Thermal Cutoffs (11) is connected on the negative wire (12).
4, thermocouple according to claim 2 is characterized in that described Thermal Cutoffs (11) is connected on the positive wire (16).
5, according to claim 3 or 4 described thermocouples, it is characterized in that described negative wire (12) places in the insulated tube (13) that itself and positive wire are kept apart, Thermal Cutoffs is the buttress shaft shape, be through in another insulated tube (14), two ends respectively with negative wire (12) spot-welded on together.
6, thermocouple according to claim 5 is characterized in that described Thermal Cutoffs (11) places the upper apparatus that is changed to this thermocouple of use of thermocouple lead need carry out the position at temperature protection position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255606 CN2645245Y (en) | 2003-07-15 | 2003-07-15 | Thermocouple |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03255606 CN2645245Y (en) | 2003-07-15 | 2003-07-15 | Thermocouple |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2645245Y true CN2645245Y (en) | 2004-09-29 |
Family
ID=34295030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03255606 Expired - Fee Related CN2645245Y (en) | 2003-07-15 | 2003-07-15 | Thermocouple |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2645245Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372139C (en) * | 2005-01-19 | 2008-02-27 | 哈尔滨工业大学 | Laminated ceramic thermocouple and its preparing method |
| CN104334066A (en) * | 2012-05-31 | 2015-02-04 | Seb公司 | Culinary article provided with a thermocouple device |
-
2003
- 2003-07-15 CN CN 03255606 patent/CN2645245Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100372139C (en) * | 2005-01-19 | 2008-02-27 | 哈尔滨工业大学 | Laminated ceramic thermocouple and its preparing method |
| CN104334066A (en) * | 2012-05-31 | 2015-02-04 | Seb公司 | Culinary article provided with a thermocouple device |
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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 |