CN1017209B - Electrothermal wire with temp. sensing wire - Google Patents
Electrothermal wire with temp. sensing wireInfo
- Publication number
- CN1017209B CN1017209B CN 90107947 CN90107947A CN1017209B CN 1017209 B CN1017209 B CN 1017209B CN 90107947 CN90107947 CN 90107947 CN 90107947 A CN90107947 A CN 90107947A CN 1017209 B CN1017209 B CN 1017209B
- Authority
- CN
- China
- Prior art keywords
- wire
- heating wire
- electric heating
- temperature sensor
- temperature
- 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
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- Resistance Heating (AREA)
Abstract
The present invention relates to an electric heating wire with a temperature sensing wire. The present invention is characterized in that the outer layer of an electric heating wire is tightly wound with a metal round wire or a metal flat wire used as a temperature sensing wire, and the resistance value of the metal round wire or the metal flat wire is increased along with the temperature increment and has a positive temperature coefficient; a layer of flexible polyvinyl chloride or fibre with good insulating property and sensitive heat conduction is used as an isolating layer between the temperature sensing wire and the electric heating wire. The electric heating wire with a temperature sensing wire has the functions of an Ohm type electric heating appliance, and the electric heating wire with a temperature sensing wire can also output resistance change signals which have linear relation with the environmental temperature of the electric heating appliance; the electric heating wire with a temperature sensing wire is matched with an electronic control circuit to realize the full-wire automatic temperature tracking control and the emergency power cut of the electric heating wire.
Description
The present invention has the heating wire of temperature sensor line, belongs to the combination of ohm-type electric heater and temperature sensor signal.
General electric heating element only has electrically heated simple function, when the electric calorifie installation that uses this electric heating element being carried out the control of temperature monitoring and temperature, must select for use independent responsive to temperature components and parts to provide attemperating unit or the required temperature signal of measurement mechanism.And responsive to temperature components and parts configurations can only distribute with limited some form, is difficult to or can not all heats the line segment thermometric to electric heating element fully.This is concerning the very high device and environment of fire protection requirement or measuring and controlling temp required precision, and this electric heating element is unsafe, also is unfavorable.
The object of the invention is to provide a kind of and all has the heating wire of temperature sensor line on the whole heating line segment of heating wire, and makes heating wire and temperature sensor line form the heating cable of a branch of double line core.
The object of the invention is achieved by following approach.
The outer fine and close winding one deck temperature sensor line of heating wire.The dielectric isolation layer that has one deck to have the good heat conductive performance between heating wire and the temperature sensor line has good electric insulation between heating wire and the temperature sensor line.The heat of heating wire very easily is transmitted to temperature sensor line again, makes temperature sensor line export real heating wire ambient temperature value fast and accurately.Temperature sensor line section completely is distributed on the heating wire, the whole line segment variations in temperature of monitoring heating wire.Localized hyperthermia and spark appear in any point, the fire omen occurs, all can predict on temperature sensor line and emergency-off.Temperature sensor line selects for use the material with positive temperature characterisitic to make.The wherein the most inexpensive practicality of copper wire.When the heating wire heat improved, the temperature sensor line resistance improved thereupon.The reacting condition variation of ambient temperature of resistance value.Thereby provide the heating wire temperature signal value, be used for temperature control and measurement.
For strengthening heating wire bending resistance and tensile strength, heating wire increases by an insulation stem stem.Heating wire is wound on the stem stem.Heating wire and temperature sensor line adopt flat filament or circle silk.
Accompanying drawing 1 is structural representation of the present invention;
Accompanying drawing 2 has the structural representation of stem stem for the present invention;
Accompanying drawing 3 adopts the structural representation of flat filament for the present invention.
In the accompanying drawing 1. for heating wire, 2. be dielectric isolation layer, 3. be temperature sensor line, 4. be insulation sheath, 5. for the insulation stem stem.
The heating wire that has a temperature sensor line comprise heating wire 1., dielectric isolation layer 2., temperature sensor line 3. and insulation sheath 4., it is characterized in that heating wire 1. and the dielectric isolation layer formed by the good thermal-dissolving way at low temperature material of a heat conductivility between 3. of temperature sensor line 2..Dielectric isolation layer 2. material can be flexible PVC, polyamine fat fiber and cotton fibre.3. temperature sensor line adopts the round copper wire or the flat filament of positive temperature characterisitic, is spirally wrapped around on the dielectric isolation layer 2..Be distributed on the heating wire whole line segment 1..Twining pitch selects between 0.3～3mm.3. 1. the heating wire that has temperature sensing as mentioned above all adopt flat filament with temperature sensor line for improving its bending resistance heating wire.Form the heating wire of anti-the flexure type.1. accompanying drawing 2 has an insulation stem stem in the center at heating wire, and 1. heating wire is spirally wrapped around on the stem stem.Improve the hot strength of heating wire of the present invention.Skin also is surrounded by insulation sheath, is used for waterproof insulation.
The heating wire that has temperature sensor line provided by the invention can be widely used in various fields, in household electrical appliance: and electric blanket, over blanket, Electric heating floor, electric heating wall, and flour ferments, gives birth to the system bean sprouts.Agricultural aspect such as greenhouse hot house, artificial breeding, artificial microclimate make.Concrete heat-insulating health in the pipe insulation of petrochemical industry aspect, long distance oil pipeline heating and the civil engineering.
The inexpensive practicality of the present invention need to be specially adapted to electric heater unit is realized temperature accurately control and senior consuming device, the place accurately measured.20～80 ℃ of its A.T.C scopes.
Claims (3)
1, the heating wire that has temperature sensor line comprises heating wire, dielectric isolation layer, temperature sensor line and insulation sheath, it is characterized in that:
The dielectric isolation layer of being made up of the good thermal-dissolving way at low temperature material of a heat conductivility between A, heating wire and temperature sensor line, its material can be flexible PVC, polyamine fat fiber or cotton fibre;
B, temperature sensor line adopt positive temperature profile at copper wire, flat filament, are spirally wrapped around on the dielectric isolation layer, are distributed on the section of heating wire all fronts, twine pitch and select at 0.3～3mm;
2, the heating wire that has temperature sensor line according to claim 1 is characterized in that heating wire and temperature sensor line are banded flat filaments.
3, the heating wire that has temperature sensor line according to claim 1 is characterized in that heating wire is wrapped on glass fibre or the terylen fiber insulation stem stem.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90107947 CN1017209B (en) | 1990-09-22 | 1990-09-22 | Electrothermal wire with temp. sensing wire |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90107947 CN1017209B (en) | 1990-09-22 | 1990-09-22 | Electrothermal wire with temp. sensing wire |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1052584A CN1052584A (en) | 1991-06-26 |
| CN1017209B true CN1017209B (en) | 1992-06-24 |
Family
ID=4880775
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90107947 Expired CN1017209B (en) | 1990-09-22 | 1990-09-22 | Electrothermal wire with temp. sensing wire |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1017209B (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100701026B1 (en) * | 2006-08-04 | 2007-04-02 | 유한성 | Non-magnetic field heating wire used in bedding and driving apparatus of thesame |
| DE102018203809B3 (en) * | 2018-03-13 | 2019-06-19 | Leoni Kabel Gmbh | Sensor line, measuring arrangement and method for producing a sensor line |
| CN112156296A (en) * | 2020-09-08 | 2021-01-01 | 绍兴安迪斯医疗科技有限公司 | Novel outer wall heating breathing pipeline |
-
1990
- 1990-09-22 CN CN 90107947 patent/CN1017209B/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CN1052584A (en) | 1991-06-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C13 | Decision | ||
| GR02 | Examined patent application | ||
| 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 |