CN2230561Y

CN2230561Y - Computer controlling structure of thermos

Info

Publication number: CN2230561Y
Application number: CN 95221501
Authority: CN
Inventors: 陈水谦
Original assignee: Individual
Current assignee: Individual
Priority date: 1995-09-12
Filing date: 1995-09-12
Publication date: 1996-07-10
Anticipated expiration: 2005-09-12

Abstract

A micro computer controlling structure of thermos works out the discharge time to be converted to the present temperature value based on the charge and discharge connection between the thermistor and the tantalum capacitance and calculates the desired time of every temperature change during heating, and the desired time plus a set value equals the desired time of the next temperature change. If the temperature exceeds the time, it is the boiling point of water, and the micro computer thermos under different atmospheric conditions can automatically stop heating to save power when reaching the boiling point of water and to prevent danger caused by dry-out water.

Description

Micro computer thermos bottle control structure device

The utility model relates to a kind of micro computer thermos bottle control structure device.

Now, the running water of Taiwan use carries out disinfection at filtration simply, post precipitation adding chlorine.Under today water resource severe contamination, running water still can't reach the standard of drinking raw.People are when the needs drinking water, and it is drinkable running water heating must to be boiled the rear, keeps at high temperature for making drinking water, needs boil water liquid is contained in the vacuum flask, and hot water can be lowered the temperature gradually; So, develop a kind of micro computer thermos bottle, utilize microcomputerized control, when the water of thermos bottle inner bag reaches boiling point, stop heating, yet because general its inner set boiling point of thermos bottle is 100 ℃, and the boiling point of water is 100 ℃ under an atmospheric pressure, and this is the data of Plain environment.Along with increasing of physical features, atmospheric pressure reduces gradually, and the boiling point of water is also followed Jiang Shi.For example at high mountain, the boiling point of water is just less than 100 ℃.Because the boiling point that general thermos bottle micro computer is set is 100 ℃, do not reaching under 100 ℃ the situation, thermos bottle inside can't stop heating automatically, and the result who continues heating just wastes electric power, even causes empty burning state.As make thermos bottle stop heating with manual type, again because of the height above sea level difference on each mountain, its air pressure boiling point also is not quite similar, can't learn boiling point at that time, have to continue to remain on same temperature very for a long time the time at water, infer that it boils, use manual type (removing attaching plug) to stop heating again, but wasted many electric power this moment as dialling.In the current society that global energy flashes the redlight, real this of this wasting phenomenon stopped.

The purpose of this utility model provides a kind of under different air pressure, when water temperature reaches the boiling point of water under this air pressure, can stop the thermos bottle control structure device to the function of water heating automatically.

The utility model is achieved in that by heater circuit, thermal circuit, power circuit, temperature sensing device, the control integrated circuit, timing circuit, circuit again seethes with excitement, the dechlorination circuit is formed, wherein power circuit provides inner required power supply, and heater circuit, thermal circuit, timing circuit, circuit again seethes with excitement, the dechlorination circuit is all controlled by the control integrated circuit, the output of temperature sensing device then is connected to the control integrated circuit, it is characterized in that: temperature sensor is made up of a resistive thermistor of tantalum capacitances in series that constitutes the relation of discharging and recharging, and this resistive thermistor is connected with the control integrated circuit.By calculating the discharge required time, and convert present temperature value to and input to the control integrated circuit, add a setting value by the control integrated circuit by last variations in temperature required time, to become the required time of next variations in temperature, as surpassing this variations in temperature required time, can judge that water has reached boiling point, stop automatically water is heated.

Wherein power circuit is made of AC transformer, bridge rectifier and integrated regulator.Wherein thermal circuit includes seven-segment display, light emitting diode and the insulation resistance wire of insulation setting key, control integrated circuit, displays temperature.Above-mentioned insulation resistance wire can have various temperature to select to constitute.Wherein heater circuit is made of heating setpoint key, control integrated circuit, seven-segment display, light emitting diode and resistive heater.Wherein timing circuit is made of timing setting key, control integrated circuit, seven-segment display, light emitting diode and timer.The circuit that wherein dechlorinates is to set strong, control integrated circuit by a dechlorination, and the resistance wire in light emitting diode and the heater circuit constitutes.The circuit that wherein seethes with excitement again is made of the resistance wire in the setting key that seethes with excitement again, control integrated circuit, light emitting diode and the heater circuit.

The utility model is with the relation that discharges and recharges between thermistor and the tantalum electric capacity, calculate its discharge time, be converted to present temperature value, and calculate and to add the time required when pining for variations in temperature each time, this time is added a setting value, required time when promptly becoming next variations in temperature, as surpassing this time, its temperature is exactly the boiling point of water, in the time of can making the boiling point of the micro computer thermos bottle arrival water boil under different atmospheric conditions thus, automatically stop heating and save power supply, and anti-sealing dryouies and causes danger.

Fig. 1 is one of control circuit of the present utility model.

Fig. 2 is two of a control circuit of the present utility model.

Consult Fig. 1, Fig. 2, power line 10 of the present utility model connects the resistance wire of an insulation usefulness and the resistance wire 14 of a heating usefulness simultaneously, this insulation resistance wire is by 12 controls of a controllable silicon, the conducting of controllable silicon 12 is triggered by a photo-coupler 13, in resistive heater 14 back and be connected to timer 15, this timer 15 amplifies the back by photo-coupler 16 with ac power frequency to be promoted, and photo-

coupler

13,16 all is subjected to a control integrated circuit 35 transmission signalizing activities.Behind power line 10, be connected to transformer 17, bridge rectifier 18 and integrated regulator, make AC power change the required power supply of direct-current power supply inner member into, and be connected with on this power supply that dechlorination/cancellation sets 20, insulation sets 21, again button such as boiling/heating setpoint 22, timing setting 23, some light emitting diode 24-28, some seven-segment display 29-31, tantalum matter electric capacity 32, thermistor 33, loudspeaker 34, control integrated circuit 35 etc.Wherein tantalum matter electric capacity 32 and thermistor 33 are combined into a temperature sensing device, utilize thermal sensitivity resistance 33 and tantalum matter electric capacity 33 to be combined into a temperature sensing device, utilize the relation that discharges and recharges between thermal sensitivity resistance 32 and the tantalum matter electric capacity 32, calculating the tantalum matter electric capacity 32 required times of discharge converts present temperature value to, and the control IC interior calculates the required time of variations in temperature each time, add setting value, required time when just becoming variations in temperature next time.

Set strong 22 the time when pressing the boiling of heating/again, signal transfers to control integrated circuit 35, and make 26 actions of a red light emitting diodes, and tantalum matter electric capacity 32 is converted into measured temperature at present with the relation of discharging and recharging that thermistor 33 constitutes, utilize seven-segment display 29-31 to demonstrate its temperature value, control integrated circuit 35 also sends a signal to photo-coupler 16, this photo-coupler amplifies AC signal to promote timer 15, resistance wire 14 is heated simultaneously, when this timer 15 utilizes the frequency meter of AC power, its required time reaches control integrated circuit 35 during variations in temperature each time, and add that the inner setting value is as the required time of next variations in temperature, if surpass this scheduled time, water temperature still end changes, the micro computer thermos bottle has reached boiling point with regard to judging voluntarily, makes heating wire 14 stop heating, and makes loudspeaker 34 send the sound.

When pressing insulation setting key 21, signal goes to control integrated circuit 35, make 24 actions of a yellow light-emitting diode, signal of 35 transmission of control integrated circuit makes photo-coupler 13 actions, promotes controllable silicon 12 conductings by photo-coupler 13, makes resistance wire 11 heat tracings, and the temperature of this insulation can have multiple choices, temperature of selecting and present water temperature all can be represented by seven-segment display 29-31, and resistance wire 11 can produce multiple power, to allow water temperature remain on the temperature of setting.But work as temperature retention time and surpass 36 hours, control integrated circuit 35 can send signal and cut off the electricity supply, and makes loudspeaker send the sound, and seven-segment display 29-31 shows " OFF ".

When pressing timing setting key 23, can in setting-up time, heat the water in the thermos bottle.Its for signal of transmission to controlling integrated circuit 35, and make a green LED action.Control integrated circuit 35 then sends a signal and picks up counting to timer 15, when timer 15 arrives at setting-up time, makes resistance wire 14 heating, and this setting-up time can be by multiple choices, and the time of selection can be represented by seven-segment display 29-31.

When pressing dechlorination/cancellation setting key 20, as just being keeping warm mode at that time, pressing this key is the dechlorination effect, signal of setting key 20 transmission is to controlling integrated circuit 35, and make a red light emitting diodes 26 bright, another red light emitting diodes 25 flickers, when control integrated circuit 35 sends signal resistance wire 14 is powered up, when water temperature arrives boiling point, red light emitting diodes 26 extinguishes and another light emitting diode 25 when bright, and just expression prolongs one period heat time heating time and finishes dechlorination, and after dechlorination is finished, loudspeaker 34 send the sound, get back to keeping warm mode.As for boiling or dechlorination are during operating state again, pressing this key is the cancellation effect, and cancellation is boiling or dechlorination again.When the thermos bottle amount very little, temperature is when normal temperature heating is boiled, required heat time heating time is less, control integrated circuit 35 can be judged low water level automatically, sends signal and makes 28 actions of a yellow light-emitting diode, and loudspeaker 34 sounding, the warning lack of water.Anhydrous as thermos bottle; temperature is boiled from the normal temperature heating; required heat time heating time is too short; have internal temperature to surpass 105 ℃, control integrated circuit 35 is judged as empty the burning, not only cuts off the electricity supply automatically; show " HHH " by seven-segment display 29-31; and the alarm of loudspeaker 34 sounding also has a Thermal Cutoffs protection in inside, prevents to burn thermos bottle and takes place.

When this thermos bottle uses on the level land, the boiling point of water is exactly 100 ℃, when water arrives boiling point, control integrated circuit 35 can send signal makes resistance wire 14 stop heating, as when high mountain uses, because of its air pressure less than an atmospheric pressure, boiling point wherein also can't reach 100 ℃, must be converted to present temperature this moment by the relation of discharging and recharging between tantalum electric capacity 32 in the utility model and the thermistor 33, and show by seven-segment display 29-31, judge that by the calculation process of micro computer water has arrived the power supply that boiling point cuts off resistance wire 14, stop water being heated.

Claims

1, a kind of micro computer thermos bottle control structure device, by heater circuit, thermal circuit, power circuit, temperature sensing device, the control integrated circuit, timing circuit, circuit again seethes with excitement, the dechlorination circuit is formed, wherein power circuit provides inner required power supply, and heater circuit, thermal circuit, timing circuit, circuit again seethes with excitement, the dechlorination circuit is all controlled by the control integrated circuit, the output of temperature sensing device then is connected to the control integrated circuit, it is characterized in that: temperature sensor is made up of a resistive thermistor of tantalum capacitances in series that constitutes the relation of discharging and recharging, and this resistive thermistor is connected with the control integrated circuit.

2, micro computer thermos bottle as claimed in claim 1 is characterized in that: wherein power circuit is made of AC transformer, bridge rectifier and integrated regulator.

3, micro computer thermos bottle as claimed in claim 1 is characterized in that: wherein thermal circuit includes seven-segment display, light emitting diode and the insulation resistance wire of insulation setting key, control integrated circuit, displays temperature.

4, micro computer thermos bottle as claimed in claim 3 is characterized in that: above-mentioned insulation resistance wire can have various temperature to select to constitute.

5, micro computer thermos bottle as claimed in claim 1 is characterized in that; Wherein heater circuit is to be good for, to control integrated circuit, seven-segment display, light emitting diode and resistive heater by heating setpoint to be constituted.

6, micro computer thermos bottle as claimed in claim 1 is characterized in that: wherein timing circuit is made of timing setting key, control integrated circuit, seven-segment display, light emitting diode and timer.

7, micro computer thermos bottle as claimed in claim 6 is characterized in that: the circuit that wherein dechlorinates is to set strong, control integrated circuit by a dechlorination, and the resistance wire in light emitting diode and the heater circuit constitutes.

8, micro computer thermos bottle as claimed in claim 1 is characterized in that: the circuit that wherein seethes with excitement again is made of the resistance wire in the setting key that seethes with excitement again, control integrated circuit, light emitting diode and the heater circuit.