CN201134934Y - Temperature self-controlled electric heating equipment - Google Patents
Temperature self-controlled electric heating equipment Download PDFInfo
- Publication number
- CN201134934Y CN201134934Y CNU2007201995008U CN200720199500U CN201134934Y CN 201134934 Y CN201134934 Y CN 201134934Y CN U2007201995008 U CNU2007201995008 U CN U2007201995008U CN 200720199500 U CN200720199500 U CN 200720199500U CN 201134934 Y CN201134934 Y CN 201134934Y
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- CN
- China
- Prior art keywords
- controller
- heater wire
- temperature
- ntc
- socket
- 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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- Control Of Resistance Heating (AREA)
Abstract
An electric heating appliance which can automatically control temperature comprises a heater wire, a controller and an attaching plug, which is characterized in that the two ends of the heater wire are fixed on a socket, the controller is connected on a direct insert plug which is corresponding to the socket through a power cord, and the attaching plug is connected with the controller through a power cord. The center of the heater wire is an electric-heat wire, the outer side of the electric-heat wire is provided with an NTC insulating layer, and an insulating cover is arranged on the outer side of the NTC insulating layer. The outer surface of the NTC insulating layer is embedded with a PTC detection line, a microcontroller is arranged in the controller, and a difference amplifier is arranged in the controller. The utility model has the advantages that the working temperature can be controlled, the warmth retention effect can be guaranteed, and the excess temperature protective function is provided to eliminate potential safety hazards.
Description
Technical field
The utility model relates to the electroheat equipment of a kind of electroheat equipment, particularly a kind of self controllable temperature.
Background technology
In the winter of cold, people need various warming equipment to resist severe cold.Soft electroheat equipment such as electric blanket, over blanket, Electric-heating capes has characteristics such as simple to operate, light and handy convenience, cheap, good warmth retention effect, gets consumer reception very much.But soft electroheat equipment such as existing electric blanket can not be realized precise dose control, and exists potential safety hazard.Electric blanket needs the user strictly to monitor down in working order, and the blanket folded body of electric blanket or heating time, the long local temperature of electric blanket that all can make was too high, moreover the blanket body of electric blanket is dry inflammable material, therefore is easy to form fire.
Summary of the invention
The utility model provides a kind of electroheat equipment of autocontrol temperature, has solved soft electroheat equipment temperature control inaccuracy of the prior art, has had the problem of potential safety hazard.A kind of electroheat equipment of autocontrol temperature, comprise heater wire, controller and attaching plug, it is characterized in that: the two ends of heater wire are fixed on the socket, and controller is connected on the straight cutting corresponding with socket by power line, and attaching plug is connected with controller by power line.Described heater wire center is a heating wire, and heating wire is provided with the NTC insulating barrier outward, and the NTC insulating barrier is provided with insulated hull outward.The outer surface of described NTC insulating barrier is embedded with the PTC detection line.Be provided with single-chip microcomputer in the described controller.Be provided with differential amplifier in the described controller.Advantage of the present utility model is: accurate Control work temperature, guarantee warming effect, and have the excess temperature automatic protection functions, eliminated potential safety hazard.
Description of drawings
Accompanying drawing 1 is a structural representation of the present utility model,
Accompanying drawing 2 is the structural representation of heater wire of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is elaborated.
Comprise heater wire 1, controller 2 and attaching plug 3 among the figure, it is characterized in that: the two ends of heater wire 1 are fixed on the socket 4, and controller 2 is connected on the straight cutting 6 corresponding with socket 4 by power line 5, and attaching plug 3 is connected with controller 2 by power line 5.The utility model will be used with woollen blanket 101, quilt, tippet etc., makes electric blanket, over blanket, Electric-heating capes etc.Before the electric blanket work, the straight cutting 6 of controller 2 need be installed on the socket 4, power line 5 is connected with power supply, with the switch opens on the controller 2, making has electric current to pass through in the heating wire.
After the energising, heating wire generates heat gradually, makes the temperature of electric blanket also improve.In electric blanket work, described heater wire 1 center is a heating wire 7, the heating wire 7 outer NTC insulating barriers 8 that are provided with, the NTC insulating barrier 8 outer insulated hulls 9 that are provided with.NTC insulating barrier 8 is a kind of special materials, along with its resistance respective change of variation of temperature, has negative temperature coefficient, and its material has high pressure resistant and resistant to elevated temperatures characteristic.The outer surface of described NTC insulating barrier 8 is embedded with PTC detection line 10.PTC detection line 10 is signal detection line, and PTC detection line 10 whole layers are wound on the skin of heater wire 1, have the characteristic of linear temperature.Be provided with differential amplifier in the described controller 2, can be with the small-signal voltage amplification of PTC detection line 10 outputs.Be provided with single-chip microcomputer in the described controller 2.
The working temperature of electric blanket, over blanket generally is set in 50C～80 ℃, when electric blanket, over blanket are in operating temperature range, PTC detection line 10 is linear temperature control, detection signal is comparatively accurately controlled suitable working temperature through removing to disturb the single-chip microcomputer of delivering to after amplifying with small-signal in the controller 2 by single-chip microcomputer.NTC insulating barrier 8 is linear temperature control, and NTC insulating barrier 8 does not act on yet; When temperature during at 80 ℃～100 ℃, NTC insulating barrier 8 just plays the effect of interrupting heating, protection system.If electric blanket or over blanket are owing to improper use, multilayer folding use or heating time are long, will make that blanket body or quilt a certain temperatures at localized regions on one's body are too high, and when temperature surpassed 80 ℃, the NTC system just detected signal, thereby control system interrupts heating.PTC detection line 10 and NTC insulating barrier 8 are as detecting sensing element, output small-signal voltage, after finishing detection, after going interference and small-signal to amplify, deliver to single-chip microcomputer, analog signal conversion is become data-signal, eliminate various inside and external disturbance with software engineering, and solve the misoperation of misoperation and pseudo-interference signal control system with delay technique.The temperature that so just can prevent electric blanket is too high, has eliminated potential safety hazard.
Claims (5)
1. the electroheat equipment of an autocontrol temperature, comprise heater wire, controller and attaching plug, it is characterized in that: the two ends of heater wire are fixed on the socket, and controller is connected on the straight cutting corresponding with socket by power line, and attaching plug is connected with controller by power line.
2. the electroheat equipment of a kind of autocontrol temperature as claimed in claim 1, it is characterized in that: described heater wire center is a heating wire, and heating wire is provided with the NTC insulating barrier outward, and the NTC insulating barrier is provided with insulated hull outward.
3. the electroheat equipment of a kind of autocontrol temperature as claimed in claim 2, it is characterized in that: the outer surface of described NTC insulating barrier is embedded with the PTC detection line.
4. the electroheat equipment of a kind of autocontrol temperature as claimed in claim 1 is characterized in that: be provided with single-chip microcomputer in the described controller.
5. the electroheat equipment of a kind of autocontrol temperature as claimed in claim 1 is characterized in that: be provided with differential amplifier in the described controller.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201995008U CN201134934Y (en) | 2007-12-19 | 2007-12-19 | Temperature self-controlled electric heating equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201995008U CN201134934Y (en) | 2007-12-19 | 2007-12-19 | Temperature self-controlled electric heating equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201134934Y true CN201134934Y (en) | 2008-10-15 |
Family
ID=40063205
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201995008U Expired - Fee Related CN201134934Y (en) | 2007-12-19 | 2007-12-19 | Temperature self-controlled electric heating equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201134934Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592962B (en) * | 2009-05-06 | 2011-12-21 | 宁波锦春电器有限公司 | Temperature control device of PTC/NTC electrical heating element |
| CN102802287A (en) * | 2012-08-18 | 2012-11-28 | 蒋军闽 | Floor heating mat special for toilet |
| CN108621475A (en) * | 2018-05-10 | 2018-10-09 | 汕头市龙华包装机械有限公司 | A kind of method and mechanism accurately controlling electric resistance wire heating temperature |
-
2007
- 2007-12-19 CN CNU2007201995008U patent/CN201134934Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101592962B (en) * | 2009-05-06 | 2011-12-21 | 宁波锦春电器有限公司 | Temperature control device of PTC/NTC electrical heating element |
| CN102802287A (en) * | 2012-08-18 | 2012-11-28 | 蒋军闽 | Floor heating mat special for toilet |
| CN108621475A (en) * | 2018-05-10 | 2018-10-09 | 汕头市龙华包装机械有限公司 | A kind of method and mechanism accurately controlling electric resistance wire heating temperature |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20111219 |