CN202408095U - Constant temperature electric blanket - Google Patents
Constant temperature electric blanket Download PDFInfo
- Publication number
- CN202408095U CN202408095U CN2011204857256U CN201120485725U CN202408095U CN 202408095 U CN202408095 U CN 202408095U CN 2011204857256 U CN2011204857256 U CN 2011204857256U CN 201120485725 U CN201120485725 U CN 201120485725U CN 202408095 U CN202408095 U CN 202408095U
- Authority
- CN
- China
- Prior art keywords
- thermistor
- resistance wire
- electric blanket
- heating resistance
- 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 - Fee Related
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Abstract
The utility model relates to a constant temperature electric blanket which comprises an electric blanket body, a temperature sensor, a thermistor, a wire, a spring switch and a current suction device, wherein a heating resistance wire is arranged in the electric blanket body; the heating resistance wire is connected in parallel with the thermistor; the temperature sensor is arranged at the edge of the heating resistance wire and is connected with the thermistor by the wire; and the current suction device is connected with one end of the spring switch and is connected in series with a hating resistance wire and thermistor parallel circuit on a 220V power supply. The temperature of the electric blanket is kept to a certain value and the health of a user cannot be damaged due to the overhigh temperature.
Description
Technical field
The utility model relates to a kind of electric blanket, particularly a kind of electric blanket that can keep the steady temperature scope.
Background technology
Electric blanket general on the existing market is all formed ball bearing made using by heating resistance wire and switch; Utilize heating resistance wire to warm oneself; Regulate temperature through " height " on the switch, " low ", " closing ", but set shelves and close all and will manually realize, caused the user to close switch because reason such as sleep soundly is forgotten; The heating that heating resistance wire can continue has caused safe hidden danger such as fire easily.Simultaneously, this electric blanket heating temperature often surpasses the human body preference temperature than higher, also has been with hidden danger for user's health; Behind powered-down, through several hrs, temperature reduces, and needs the manual unlocking switch again, has brought inconvenience to the user in addition.
The utility model content
In order to address the above problem, the utility model provides a kind of can keep the steady temperature scope, with the self-regulating electric blanket of temperature.
The utility model comprises in electric blanket body, temperature inductor, thermistor, lead, snap switch, this electric blanket body has heating resistance wire; This heating resistance wire is parallelly connected with described thermistor; Described temperature inductor is installed in this heating resistance wire edge; And be connected with thermistor through lead; This electric blanket also comprises an electric current suction device, and this electric current suction device is connected with an end of snap switch, and with described heating resistance wire and the series connection of thermistor parallel circuit on the 220V power supply.
The utility model beneficial effect: open automatically and close switch according to temperature through electric current suction device operating spring switch, thereby realize keeping whole heating process to keep the constant temperature scope.It is too high that the heating resistance wire temperature can not take place, and causes fire; Stationary temperature scope comfortable and the whole night warm of human body sensory in addition simultaneously.The entire circuit design is also fairly simple, is easy to realize extensive use.
Description of drawings
The specific embodiment
Be described further below in conjunction with 1 pair of the utility model of accompanying drawing.
Shown in Figure 1 is a kind of thermostatic electric heating blanket; Comprise in electric blanket body 1, temperature inductor 3, thermistor 4, lead 5, snap switch 7, this electric blanket body 1 heating resistance wire 2 is arranged; This heating resistance wire 2 is parallelly connected with described thermistor 4; Described temperature inductor 3 is installed in this heating resistance wire 2 edges, and is connected with thermistor 4 through lead 5, and this electric blanket 1 also comprises an electric current suction device 6; This electric current suction device 6 is connected with an end of snap switch 7, and with described heating resistance wire 2 and thermistor 4 parallel circuit series connections on the 220V power supply.
During use, press energized, snap switch 7 then; Begin to have electric current in the circuit, the heating resistance wire 2 of electric blanket 1 constantly heats up, and temperature inductor 3 carries out temperature sense; Thermistor 4 is along with the rising resistance of temperature sensor constantly increases, and the resistance of entire circuit constantly reduces, and can be known by Ohm's law; The electric current of entire circuit increases gradually, and the suction of the electric current suction device 6 of this moment is also increasing gradually.After temperature was elevated to certain value, and thermistor 4 reaches peak value, the electric current of entire circuit also increased to certain value; The suction of electric current suction device 6 also increases, and suction pulling this moment snap switch 7 makes the entire circuit automatic trip; After this can not form the situation that continued power continues heating, along with outage back decrease of temperature, suction weakens gradually; After being lower than certain temperature, circuit continues to connect once more.
Claims (1)
1. thermostatic electric heating blanket; Comprise in electric blanket body, temperature inductor, thermistor, lead, snap switch, this electric blanket body heating resistance wire is arranged; This heating resistance wire is parallelly connected with described thermistor; Described temperature inductor is installed in this heating resistance wire edge, and is connected with thermistor through lead, and it is characterized in that: said electric blanket also comprises an electric current suction device; This electric current suction device is connected with an end of snap switch, and with described heating resistance wire and the series connection of thermistor parallel circuit on the 220V power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204857256U CN202408095U (en) | 2011-11-29 | 2011-11-29 | Constant temperature electric blanket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204857256U CN202408095U (en) | 2011-11-29 | 2011-11-29 | Constant temperature electric blanket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202408095U true CN202408095U (en) | 2012-09-05 |
Family
ID=46732896
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204857256U Expired - Fee Related CN202408095U (en) | 2011-11-29 | 2011-11-29 | Constant temperature electric blanket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202408095U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103005937A (en) * | 2012-12-18 | 2013-04-03 | 上海电机学院 | Electric blanket with function of automatic temperature control by pressure induction |
-
2011
- 2011-11-29 CN CN2011204857256U patent/CN202408095U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103005937A (en) * | 2012-12-18 | 2013-04-03 | 上海电机学院 | Electric blanket with function of automatic temperature control by pressure induction |
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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: 20120905 Termination date: 20121129 |