CN2570837Y

CN2570837Y - Electric blanket

Info

Publication number: CN2570837Y
Application number: CN 02240012
Authority: CN
Inventors: 吴淑姿
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-07-05
Filing date: 2002-07-05
Publication date: 2003-09-03
Anticipated expiration: 2012-07-05

Abstract

The utility model relates to an electric heating blanket, which is formed by the combination of a heater, a controller, an inductor, etc. A main control circuit and a monitoring circuit are arranged in the controller, and temperature is limited by an electronic loop of the controller. Temperature which is generated by the heater is led to keep definite (constant temperature), but not overheating, wherein, the monitoring circuit has the function of detecting circuits. When a system assembly generates failures or circuits generates short circuit and rupture, a monitoring circuit is the controller automatically cuts off a power supply device to prevent the occurrence of dangerous events and to achieve the effect of saving a power source. The utility model is matched with low voltage direct current and a display to have the advantages of good safety effect and flexible operation.

Description

Electric blanket

Technical field

The utility model relates to a kind of electric blanket, particularly utilizes supervisory circuit and is controlled temperature that electric heater produces in the electric blanket of temperature constant state.

Background technology

In weather comparatively cold season, area, for suffering from rheumatism and other disease patient, or the old and the weak women and children etc., the equipment that preferable insulation need be arranged, as: the heating of lighting a fire, electric heater, electric blanket ... Deng the electric heating thermal insulation facility, to prevent crossing low cause frostbite, pernio, the death of mistake temperature because of temperature ... .. wait incident to take place, but during owing to fuel combustion, except that producing heat energy and luminous energy, also produce carbon monoxide or other noxious material simultaneously, outside not only can harmful to human, and the black smoke of discharging also more can cause inside and outside sooting in room and dirt, causes environmental pollution.

General traditional electric blanket is in device one well heater 100 (shown in the 1st figure) in by blanket; by function conversion; and make electric energy be converted to heat energy; and the setting of cooperation temperature detect switch (TDS) 200; the temperature that well heater 100 is produced remains in the default value; though these structures can be reached basic insulation and overtemperature prote effect, when using, still have following disappearance to demand urgently improving unavoidably:

One, in well heater 100, only controls temperature in default value by temperature detect switch (TDS) 200, if during temperature detect switch (TDS) 200 faults, not only easily occurrence temperature is overheated and cause outside burn or the fire, and the temperature top/bottom latitude that well heater produced is big, more causes the uncomfortable of use.

Two, owing to there is no the device of any displays temperature on the electric blanket, the user is only by the temperature sensation that touched at that time, and the temperature height of adjustment electric heater, if again it is covered in handicapped or when patient that ability to express is not good, child, when in case well heater 100 breaks down, not only cause outside user's the danger, the secret worry of public safety hazards is more arranged.

Three, electric blanket is its electric power supply source by the power supply 300 that exchanges normally, but since electric blanket when using be cover, wear on human body, if when electric leakage or waterflooding take place, and have the danger of electric shock to take place, when if the user is in sleep state, more serious accident can take place.

Summary of the invention

The purpose of this utility model provides a kind of electric blanket, mainly is made up of well heater, controller and an inductor; The temperature value that its middle controller is passed back via temperature inductor, determine whether activating well heater, and be provided with supervisory circuit in the controller, if the major control circuit breaks down and can't respond, or the Temperature numerical that inductor returned do not meet default value, and then expression system breaks down, and supervisory circuit promptly gives a warning, and the power supply of the supply of cutting off the electricity supply automatically, to prevent the peace incident generation of endangering.

The utility model is by the electronic loop in the controller, the temperature that well heater is produced keeps certain (constant temperature), and is unexpected because of the overheated fire that causes, and makes the temperature range gap that is produced little, increasing user's comfort, and then reach the effect of saving power supply.

Be provided with display in the controller of the present utility model, temperature and regularly numerical value come into plain view, and cooperate the use of low voltage direct current, reaching the maltilevel security protection, and have the use of hommization concurrently.

The utility model is achieved in that a kind of electric blanket, comprising: a controller is connected with a heating gauge tap with an inductor respectively; One detects the inductor of heter temperature, and this inductor is connected on the controller; One well heater, this well heater is connected with the heating gauge tap; One power supply unit is connected with controller.

The utility model is elaborated with specific embodiment below in conjunction with accompanying drawing.

Description of drawings

Fig. 1 is the electric calorifie installation synoptic diagram of traditional electric blanket.

Fig. 2 is the circuit diagram of the utility model one preferred embodiment.

Fig. 3 is the use synoptic diagram of the utility model one preferred embodiment.

Fig. 4 is the device synoptic diagram of the utility model one preferred embodiment.

Drawing reference numeral explanation: 1,100 well heaters; 11 change-over switches; 12 transistors; 2 controllers; 21 major control circuit; 200 temperature detect switch (TDS)s; 3 inductors, 31 supervisory circuits; 300 power supplys; 4 power supply units; 5 displays.

Embodiment

Fig. 2 is the circuit diagram of the utility model one preferred embodiment, and with shown in ginseng the 3rd figure, can be clear that from figure the utility model mainly is by a well heater 1, a controller 2, an inductor 33, and institute such as power supply unit 4 constitutes; Wherein, be provided with one in the electric blanket and switch switch 11, use control power supply unit 4 and switch and well heater 1 temperature power; To well heater 1 heating, this transistor 12 is electric blanket heating gauge tap to controller 2 by a transistor 12 controls.Controller 2 is microprocessors, in be provided with major control circuit 21 (shown in the 3rd figure), all controls, can be cut off the power supply of electric blanket and send warning during overtemperature all according to internal processes operation; Be provided with supervisory circuit 31 in the master controller 21.Inductor 3 mainly is made up of the temperature coefficient element; Change its resistance with the induction variation of temperature, major control circuit 21 just can be learnt the temperature of well heater 1 by detected resistance, and the work of auto controlled heater 1.Controller 2 one ends connect power supply unit 4, and end then joins with well heater 1 in addition; Inductor 3 is to be connected on the controller 2.

When using, when signal is sent to controller 2, controller is according to program handling failure and carry out temperature control respectively, and the temperature value of passing back according to inductor 3, determine whether activating well heater 1 or adjust its temperature power, and the temperature top/bottom latitude that well heater 1 is produced little (maintenance constant temperature), to increase user's comfort, unexpected because of the well heater 1 overheated fire that causes, and have the effect of saving power supply 4 concurrently, and by the supervisory circuits 31 in the controller 2 with detection system effect whether normally, if major control circuit 21 breaks down and can't respond, or the Temperature numerical that inductor 3 is returned does not meet the value of setting scope, then expression system breaks down, supervisory circuit 31 promptly gives a warning, and the power supply of the supply 4 of cutting off the electricity supply automatically, to prevent the peace incident generation of endangering.

Wherein, can be in the controller 2 by the setting (shown in 4 figure) of display 5; temperature and numerical value are regularly come into plain view; and the use of cooperation low voltage direct current; reach maltilevel security protection effect, when preventing humidity or waterflooding, have the accident of electric shock to take place; and provide the user to be convenient to the observing system state, and do suitably to adjust according to numerical value at that time.

By the above as can be known, the structure-improved of the utility model electric blanket has the usefulness of detection line and caution really, and can keep temperature in certain limit and unexpected excessive temperature differentials, and has effect safe in utilization concurrently.

The above only is preferred embodiment of the present utility model, be not to be used for limiting the scope that the utility model is implemented, all equalizations of doing according to content described in the utility model change and modify (as gloves, headgear, or the warming facility of other local device), be all the utility model claim and contain.

Claims

1, a kind of electric blanket is characterized in that comprising:

One controller is connected with a heating gauge tap with an inductor respectively;

One detects the inductor of heter temperature, and this inductor is connected on the controller;

One well heater, this well heater is connected with the heating gauge tap;

One power supply unit is connected with controller.

2, electric blanket according to claim 1 is characterized in that being provided with in the controller supervisory circuit of monitoring inductor change in resistance and according to the major control circuit of the resistance control heater work of being monitored.

3, electric blanket according to claim 1 is characterized in that controller also connects a displays temperature height and display regularly.

4, electric blanket according to claim 1 is characterized in that power supply is a low-voltage dc power supply.