CN202305018U - Alarm device preventing electric blanket from overheating - Google Patents
Alarm device preventing electric blanket from overheating Download PDFInfo
- Publication number
- CN202305018U CN202305018U CN2011204146305U CN201120414630U CN202305018U CN 202305018 U CN202305018 U CN 202305018U CN 2011204146305 U CN2011204146305 U CN 2011204146305U CN 201120414630 U CN201120414630 U CN 201120414630U CN 202305018 U CN202305018 U CN 202305018U
- Authority
- CN
- China
- Prior art keywords
- alarm
- electric blanket
- control chip
- overheated
- warning device
- 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
Links
Images
Abstract
The utility model relates to the technical field of power utilization safety products, in particular to an alarm device preventing an electric blanket from overheating, which comprises heat sensors, a heat absorption pad, a lead, an alarm and a 12V battery. The heat sensors are connected in series to form a net structure through an inner lead, the heat sensors connected in series to form the net structure are covered by a sensor outer sleeve made of the heat absorption pad, the inner lead is connected with one end of an outer lead, the other end of the outer lead is connected with the alarm, and a control chip and the 12V battery are arranged inside the alarm. The sensor outer sleeve can be designed into various shapes, and the electric supply can supply power to the alarm. By means of the heat sensors of the net structure, the alarm device can timely sense temperature changes of the electric blanket, and then enable heat signals to be converted into electrical signals to be sent to the control chip in the alarm, When the temperature of the electric blanket exceeds the setting scope of the control chip, the control chip instructs the alarm to give an alarm.
Description
Technical field
The utility model relates to the Electrical Safety product technical field, specifically, is a kind of warning device that prevents that electric blanket is overheated.
Background technology
Electric blanket; Having another name called electrical blanket, is a kind of contact electric heating appliance, also is commonplace a kind of bedding that people used in winter; It has moderate cost, heating effect is good, power consumption is few, easy to use, advantage that temperature is adjustable, receives old man and children and welcome deeply.At present, existing novel radiationless electric blanket appears on the market.Yet the Electrical Safety of electric blanket but will be paid special attention to.
The main cause of electric blanket Electrical Safety problem has: (1) keeping mode or method of application is improper, causes the electric blanket structural damage, produces electric leakage when using, the overheated even accident of catching fire and hurting sb.'s feelings; (2) product quality has problem, because the entering " threshold " that electric blanket is produced is not high, under the ordering about of interests, has the product of inferior quality to sneak into market unavoidably, and the result causes the problem of use.Add the saying of " having the radiation meeting that human body is exerted an influence ", therefore, some people still has misgivings to using electric blanket.
The utility model content
The purpose of the utility model is to solve the problem that is easy to generate in the present electric blanket use, provide a kind of safety practical again prevent the warning device that electric blanket is overheated, can protect the user to use electric blanket safely.
For realizing above-mentioned purpose, the technical scheme that the utility model is taked is:
A kind of warning device that prevents that electric blanket is overheated; Contain thermal sensor, heat absorption pad, lead, alarm and 12V battery, it is characterized in that, thermal sensor is connected into reticulate texture by inside conductor; Be connected into the sensor overcoat covering that cancellated thermal sensor is made by the heat absorption pad; Described inside conductor is connected with an end of outer conductor, and the other end of outer conductor connects alarm, is provided with control chip and 12V battery in the inside of alarm.
The shape of said sensor overcoat (heat absorption pad) can be designed to multiple shape, as, circular, oval, square, rectangle, rhombus, heart.
Described alarm can be by mains-supplied.
The utility model is arranged to reticulate texture with thermal sensor; Make it can experience the variation of electric blanket temperature; Again thermal signal is changed into electric signal and sends the control chip in the alarm to, when electric blanket temperature surpass control chip scope is set the time, control chip just instructs alarm equipment alarm.
A kind of good effect of the warning device that electric blanket is overheated that prevents of the utility model is:
(1) simple in structure, safe and reliable, easy to use, can with the supporting use of electric blanket, survey the overheated situation of electric blanket timely and effectively, can protect user's safety to use electric blanket relievedly;
(2) user can come shape, the color of selecting arrangement according to the hobby of oneself;
(3) low cost of manufacture is formulated product standard easily, and actual application prospect is arranged.
Description of drawings
Accompanying drawing 1 is a kind of structure I synoptic diagram that prevents the warning device that electric blanket is overheated of the utility model;
Accompanying drawing 2 is a kind of structure I I synoptic diagram that prevents the warning device that electric blanket is overheated of the utility model;
Accompanying drawing 3 is a kind of circuit diagram that prevents the warning device that electric blanket is overheated of the utility model.
Label among the figure is respectively:
1, thermal sensor, 2, sensor overcoat; 3, outer conductor; 4, alarm.
Embodiment
Provide a kind of embodiment that prevents the warning device that electric blanket is overheated of the utility model below in conjunction with accompanying drawing, still, the enforcement of the utility model is not limited to following embodiment.
Referring to accompanying drawing 1, a kind of warning device that prevents that electric blanket is overheated adopts inside conductor that thermal sensor 1 is connected into reticulate texture, fills up with heat absorption and makes sensor overcoat 2 and will be connected into cancellated thermal sensor 1 by covering.For adapting to different consumers, the shape of said sensor overcoat 2 can be designed to multiple shape, as, circular, oval (referring to accompanying drawing 2), square, rectangle, rhombus, heart etc.Use the purpose of sensor overcoat 2 to be to prevent the cancellated thermal sensor 1 of entering of the dust of outside (comprising on the bed); The cleaning and the sensitivity of protection thermal sensor 1; Prevent friction each other between the thermal sensor 1; The warning device of the utility model can normally be used, and can increase serviceable life.
The inside conductor of series connection thermal sensor 1 is connected with an end of outer conductor 3, and the other end of outer conductor 3 connects alarm 4, at the set inside control chip of alarm 4.Said control chip mainly adopts MCS-51 Series chip and 12V battery.For the convenience in the use is provided, described alarm 4 can also be arranged to by mains-supplied (with existing electric blanket structure).
The user can select the warning device that electric blanket is overheated that prevents of a shape of oneself liking, and it is placed on electric blanket is prone to below, overheated position most, opens the switch on the alarm 4, makes wholely to prevent electric blanket overheated warning device is in conducting state.The temperature of electric blanket raises suddenly (and the people in being sunk into sleep is difficult for waking up) in using; Thermal sensor 1 will in time change into electric signal with thermal signal and send the control chip in the alarm 4 to; When the electric blanket temperature of reality surpass control chip scope is set the time, control chip just instructs alarm equipment alarm.Thereby guarantee user's safety.
A kind of circuit of the warning device that electric blanket is overheated that prevents of the utility model is seen accompanying drawing 3.
Sensor detects electric blanket when crossing thermal-radiating infrared signal; By the 2 pin output faint electric signal of IC (integrated circuit) integrated circuit through C1; Amplify through triode VT1; Be input to through C2 then carry out high-gain among the operational amplifier IC2A, low noise amplifies noise, at last by the 1 pin output control signal of IC2A.IC2B the 5th pin provides reference voltage by R10, VD1, and when the 1 pin output signal voltage of IC2A arrived 6 pin of IC2B, the voltage of two input ends compared; When 6 pin voltage ratios, 5 pin voltages were high, 7 pin of IC2B promptly became low level by original high level, and this moment, C6 was through the VD2 discharge; This moment, 2 pin of IC3 became low level, and the 3 pin reference voltages of it and IC3 compare, when it is lower than its reference voltage; 1 pin of IC3 becomes high level, the VT2 conducting, and chimes of doom is sent in news Chinese percussion instrument BL energising.
R14 and C6 form the circuit that the warning delaying current flows through, and its time is about 60s.When the people took the heat absorption pad away, the infrared signal of its radiation promptly disappeared, and 7 pin of IC (integrated circuit) IC 2B recover high level again, and level output is arranged this moment, and this moment, VD2 ended.Because the voltage at C6 two ends can not suddenly change, so slowly charge to C6 through R14, when the voltage at C6 two ends was higher than its reference voltage, 1 pin of IC3 just became low level, and the time is about 60s, promptly continued warning 60s.
Claims (3)
1. warning device that prevents that electric blanket is overheated; Contain thermal sensor, heat absorption pad, lead, alarm and 12V battery, it is characterized in that, thermal sensor is connected into reticulate texture by inside conductor; Be connected into the sensor overcoat covering that cancellated thermal sensor is made by the heat absorption pad; Described inside conductor is connected with an end of outer conductor, and the other end of outer conductor connects alarm, is provided with control chip and 12V battery in the inside of alarm.
2. a kind of warning device that prevents that electric blanket is overheated according to claim 1 is characterized in that, the shape of said sensor overcoat can be designed to circle, ellipse, square, rectangle, rhombus or heart.
3. a kind of warning device that prevents that electric blanket is overheated according to claim 1 is characterized in that described alarm can be by mains-supplied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204146305U CN202305018U (en) | 2011-10-27 | 2011-10-27 | Alarm device preventing electric blanket from overheating |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011204146305U CN202305018U (en) | 2011-10-27 | 2011-10-27 | Alarm device preventing electric blanket from overheating |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202305018U true CN202305018U (en) | 2012-07-04 |
Family
ID=46373894
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011204146305U Expired - Fee Related CN202305018U (en) | 2011-10-27 | 2011-10-27 | Alarm device preventing electric blanket from overheating |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202305018U (en) |
-
2011
- 2011-10-27 CN CN2011204146305U patent/CN202305018U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202842430U (en) | Heat-preservation and sunstroke-prevention garment | |
| CN202305018U (en) | Alarm device preventing electric blanket from overheating | |
| CN203789209U (en) | Warm-keeping glove based on intelligent control | |
| CN204273886U (en) | A kind of energy-saving temperature-controlled smart mattress | |
| CN201491636U (en) | Liquid mosquito-repellent incense electric heater | |
| CN201445260U (en) | Self-heated vacuum cup | |
| CN106551481A (en) | Solar energy flight parasols | |
| CN201794814U (en) | Electric fan | |
| CN202525105U (en) | Heating clothes | |
| CN205492852U (en) | Umbrella of can drying | |
| CN101526863A (en) | Hand warming mouse | |
| CN202523022U (en) | Multifunctional mouse | |
| CN204467319U (en) | One is climbed the mountain and is used thermos cup | |
| CN203424617U (en) | Inductive electric heating stool | |
| CN201709936U (en) | Safety electric blanket | |
| CN202958917U (en) | Electric heating heat-insulation gloves | |
| CN103054507B (en) | The operational approach of the toilet seat of temp. controllable | |
| CN206880335U (en) | A kind of solar energy intelligent heating pad | |
| CN202515173U (en) | Electric blanket capable of controlling time and temperature | |
| CN203684861U (en) | Voice prompt cotton yarn door shield | |
| CN107956717A (en) | A kind of cold-hot dual-purpose electric fan | |
| CN203573275U (en) | Mouse with wrist rest | |
| CN201887962U (en) | Warming clothes | |
| CN203121736U (en) | Novel mattress | |
| CN202980266U (en) | Automatic warming glove |
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: 20120704 Termination date: 20121027 |