CN101669763B - Instant electric kettle and method for controlling same - Google Patents

Instant electric kettle and method for controlling same Download PDF

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Publication number
CN101669763B
CN101669763B CN 200810198445 CN200810198445A CN101669763B CN 101669763 B CN101669763 B CN 101669763B CN 200810198445 CN200810198445 CN 200810198445 CN 200810198445 A CN200810198445 A CN 200810198445A CN 101669763 B CN101669763 B CN 101669763B
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water
pump
hot water
temperature
cold water
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CN101669763A (en
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王冬雷
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Elec Tech International Co Ltd
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Elec Tech International Co Ltd
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Abstract

The invention discloses an instant electric kettle, which comprises a machine body; the machine body is provided with a bottom plate; an upper end of the machine body is sealed by a top cover, so a cavity is formed; the cavity accommodates a pump of which one end is communicated with a water tank and the other end is communicated with a quick heater; the quick heater is provided with a water inlet and a hot water outlet, and a vapor discharging port is positioned in a hot water outlet path of the quick heater and can also be positioned on the upper part of the quick heater and higher than the hot water outlet or a liquid water level; and the instant electric kettle quickly adjusts the power of the quick heater or the flow rate of the pump or simultaneously adjusts the power of the quick heater and the flow rate of the pump according to the hot water outlet temperature so as to ensure that the hot water outlet temperature meets the requirements of people. After connecting a power source for a few seconds, the instant electric kettle can instantly heat cold water into hot water of which the water outlet temperature meets the requirements of the people or boiling water of which the expected maximum temperature value can reach 100DEG C, has stable and steady outlet water, energy and electricity conservation, and strong practicability, and meets the requirements of consumers.

Description

A kind of instant-heating type electric kettle and control method thereof
Technical field
The present invention relates to a kind of electrical equipment, especially relate to a kind of instant-heating type electric kettle and control method thereof that electronic circuit is controlled temperature to boil water and holding temperature that be provided with.
Background technology
At present most insulating pots all is disposablely cold water in the container that is filled with water to be heated into boiling water and to need the heat time heating time number minute cold water could be boiled at least, and the boiling water in the container can not disposablely use up, and water will cool to room temperature and cause the waste of water resource; If being contained in the thermos bottle is not the boiling water on the same day, be similar to the water of putting for a long time in the air, can produce bacterium; If boiling water boils again again, will make the nitrous acid content overproof in the water, cause people's physical impairment, the boiling water that boils again again still is the concentrate of harmful substances such as heavy metal, arsenide, and drink can disturb people's gastrointestinal function for a long time, diarrhoea, abdominal distension etc. occur.
From the patent document of application number 200480012941.1, recognize a kind of device that is used for the Instant heating type heating liquid of household electrical appliance, the heater of this Instant heating type heating liquid can be heated to cold water the hot water about 80 ℃ immediately within the energising back several seconds, but the leaving water temperature that can not guarantee hot water can meet the needed leaving water temperature requirement of people neatly, and the instant-heating type electric kettle that this heater is housed can't be heated into cold water 100 ℃ boiling water.
From the patent document of patent No. ZL200720057952.2, recognize a kind of instant heating insulating pot, this instant electric kettle can be selected the pump capacity parameter and the power parameter of the heat-generating disc of the tape thickness film circuit heater element that matches according to the distribution situation of leaving water temperature and spiral variant turnover tank, but its leaving water temperature has only a temperature value, and its temperature value is the hot water about 80 ℃.
The device of instant-heating type electric kettle above-mentioned or Instant heating type heating liquid or the household electrical appliance of this heater are housed, though be provided with temperature control equipment, but its temperature control equipment leaving water temperature has only a temperature value, and cold water can't be heated into 100 ℃ boiling water within the several seconds, promptly heat time heating time long, the leaving water temperature of hot water can't meet the needed leaving water temperature requirement of people, and this apparatus structure complexity, the cost height, poor practicability can not satisfy the demands of consumers.
Summary of the invention
The object of the present invention is to provide a kind of instant-heating type electric kettle and control method thereof, instant-heating type electric kettle of the present invention can guarantee that leaving water temperature has a plurality of temperature values or adjustable arbitrary temperature value within the several seconds in energising back, and its maximum temperature value can reach 100 ℃ boiling water, and simple in structure, can realize continuous effluent and stable water outlet, at the uniform velocity, cost is low, and no courage does not have heating repeatedly, there is not the boiling water of storage, energy saving, practical, satisfy the instant-heating type electric kettle of consumer demand.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of instant-heating type electric kettle includes water tank, rapid heater, the pump between described water tank and rapid heater and the control circuit that can contain cold water, and described water tank, rapid heater and pump are connected by pipeline; Described instant-heating type electric kettle also comprises the temperature sensor that can experience the water temperature in the described rapid heater; Wherein, described control circuit includes heater circuit, described heater circuit comprises prestoring to be expected leaving water temperature, be used for the detected Current Temperatures of more described temperature sensor and expect leaving water temperature and calculate the temperature difference calculating and comparing module of the temperature difference between the two that the input of described temperature difference calculating and comparing module is connected with described temperature sensor; Described heater circuit also comprises the Current Temperatures that calculates according to described temperature difference calculating and comparing module and expects the output control module of the temperature difference control heating mode between the leaving water temperature, the input of described output control module is connected with the output of described temperature difference calculating and comparing module, and the output of described output control module is connected with power supply.
Described output control module is a kind of power output control circuit of output voltage of controllable power, the input of described power output control circuit is connected with the output of described temperature difference calculating and comparing module, the output of described power output control circuit is connected with power supply, and the output of described power output control circuit connects described rapid heater simultaneously.
Described output control module is a kind of Flow-rate adjustment control circuit, the input of described Flow-rate adjustment control circuit is connected with the output of described temperature difference calculating and comparing module, the output of described Flow-rate adjustment control circuit is connected with power supply, and the output of described Flow-rate adjustment control circuit connects described pump simultaneously.
Described output control module is a kind of power output control circuit of the output voltage by controllable power and the combined control circuit that the Flow-rate adjustment control circuit combines, the input of described combined control circuit is connected with the output of described temperature difference calculating and comparing module, the output of described combined control circuit is connected with power supply, and the output of described combined control circuit connects described rapid heater and pump simultaneously.
Described control circuit includes single-chip microcomputer, and described temperature difference calculating and comparing module and output control module are integrated on the described single-chip microcomputer.
The control method of described instant-heating type electric kettle comprises the steps:
Step 1: described instant-heating type electric kettle enters duty;
Step 2: the default leaving water temperature that needs;
Step 3: pump is connected;
Step 4: control circuit is judged needs hot water or cold water, as needs hot water, then enters step 5, as needs cold water, then enters step 10;
Step 5: connect rapid heater;
Step 6: control circuit receives the detected temperatures value of temperature sensor in the rapid heater;
Step 7: the temperature computation comparison module calculates the temperature difference of Current Temperatures and preset temperature;
Step 8: output control module is controlled heating mode according to the temperature difference.
Step 9: the hot water that reaches preset temperature value flows out;
Step 10: rapid heater does not heat, and cold water flows out.
To sum up, the invention has the beneficial effects as follows:
A kind of instant-heating type electric kettle of the present invention, be a kind of instant-heating type electric kettle that makes leaving water temperature have a plurality of temperature values and/or arbitrary temperature value to select with electronic-controlled installation for people, owing to use rapid heater, and described control circuit comprises temperature difference calculating and comparing module and output control module, its operation principle is by pump the cold water in the water tank to be transported to Fast Heating in the rapid heater, adjust the power of rapid heater or the flow of adjustment pump according to the temperature value of selecting and the temperature difference of the detected current temperature value of temperature sensor, or the flow of adjusting the power of rapid heater and pump simultaneously reaches the temperature value of selection.The insulating pot of this fast energy-saving can be heated into cold water selected temperature value immediately within the energising back several seconds.The present invention has the following advantages:
1. leaving water temperature has a plurality of temperature values, and a plurality of temperature values comprise: 60 degree, 70 degree, 75 degree, 80 degree, 85 degree, 92 degree, 95-100 degree or adjustable arbitrary temperature value, and maximum temperature value can reach 100 ℃ boiling water.
2. energy saving, it is fast and stable, at the uniform velocity to go out water speed.
3. effectively prevent to scurry temperature, practical.
4. there is not courage: safety, health, health.
5. structure keeps economical, and it is convenient to clean, and cost is low, satisfies the demands of consumers, and more holds susceptible to user acceptance.
Description of drawings
Fig. 1 is the structural representation of a kind of instant-heating type electric kettle of the present invention;
Fig. 2 is the theory diagram of the heater circuit embodiment one of a kind of instant-heating type electric kettle of the present invention;
Fig. 3 is the theory diagram of the heater circuit embodiment two of a kind of instant-heating type electric kettle of the present invention;
Fig. 4 is the control flow chart of the embodiment one of a kind of instant-heating type electric kettle control method of the present invention;
Fig. 5 is the control flow chart of the embodiment two of a kind of instant-heating type electric kettle control method of the present invention.
Description of reference numerals:
Body-1, water tank-2, rapid heater-3, pump-4, base plate-5, waste water dish-6, pump support-7, cold water pipe one-8, passage-9, cold water pipe two-10, water inlet-11, hot water-12, hot water outlet-13, hot-water line-14, steam outlet-15, kettle mouth-16, chamber-17, steam disengagement chamber-18, temperature sensor arranging device--19, temperature sensor-20, tank lid-21, top cover-22, hot water is emitted button-23, cold water is emitted button-24, cup dish-25, cold water-26, circuit board-27, temperature difference calculating and comparing module-28, output control module-29, power supply-30.
The specific embodiment
As shown in Figure 1, 2, 3, the present invention discloses a kind of instant-heating type electric kettle, include water tank 2, rapid heater 3, the pump 4 and the control circuit between described water tank 2 and rapid heater 3 that can contain cold water, described water tank 2, rapid heater 3 and pump 4 are connected by pipeline; Described instant-heating type electric kettle also comprises the temperature sensor 20 that can experience the water temperature in the described rapid heater; Wherein, described control circuit includes heater circuit, described heater circuit comprises prestoring to be expected leaving water temperature, be used for the detected Current Temperatures of more described temperature sensor and expect leaving water temperature and calculate the temperature difference calculating and comparing module 28 of the temperature difference between the two that the input of described temperature difference calculating and comparing module 28 is connected with described temperature sensor 20; Described heater circuit comprises that also the temperature difference between the Current Temperatures that calculates according to described temperature difference calculating and comparing module 28 and the expectation leaving water temperature controls the output control module 29 of heating mode, the input of described output control module 29 is connected with the output of described temperature difference calculating and comparing module 28, and the output of described output control module 29 is connected with power supply 30.
Described control circuit includes single-chip microcomputer, and described temperature difference calculating and comparing module 28 and output control module 29 are integrated on the described single-chip microcomputer.
As Fig. 4,5, the control method of described instant-heating type electric kettle comprises the steps:
Step 1: described instant-heating type electric kettle enters duty;
Step 2: the default leaving water temperature that needs;
Step 3: pump is connected;
Step 4: control circuit is judged needs hot water or cold water, as needs hot water, then enters step 5, as needs cold water, then enters step 10;
Step 5: connect rapid heater 3;
Step 6: control circuit receives the detected temperatures value of temperature sensor 20 in the rapid heater 3;
Step 7: temperature computation comparison module 28 calculates the temperature difference of Current Temperatures and preset temperature;
Step 8: output control module 29 is according to temperature difference control heating mode.
Step 9: the hot water that reaches preset temperature value flows out;
Step 10: rapid heater 3 does not heat, and cold water flows out.
Embodiment one:
As shown in Figure 1, 2, described output control module 29 is a kind of power output control circuit of output voltage of controllable power, the input of described power output control circuit is connected with the output of described temperature difference calculating and comparing module 28, the output of described power output control circuit is connected with power supply 30, and the output of described power output control circuit connects described rapid heater 3 simultaneously.
Shown in Fig. 1,2,4, instant-heating type electric kettle comprises a body 1, and body 1 bottom is provided with a base plate 5, and the top of body 1 is sealed by top cover 22, forms a chamber 17; Can place a water tank 2 behind the body 1; A waste water dish 6 can be placed in the front lower place of body 1, is stamped one glass of dish 25 on the described waste water dish 6, can place cup on the described cup dish 25 and receive the hot water that is flowed out by kettle mouth 16.
Can adorn a certain amount of cold water 26 in the described water tank 2, its top covers with a tank lid 21.
Described top cover 22 is provided with that hot water is emitted button 23 and cold water is emitted button 24, and two buttons all are the functions such as break-make that are used for controlling power supply 30, described hot water is emitted button 23 and is emitted button 24 with cold water and be connected with a circuit board 27, wherein all functions of these circuit board 27 control appliances.
As shown in Figure 1: a passage 9 is arranged at the bottom of described water tank 2, passage 9 is communicated with cold water pipe 1, and the other end of cold water pipe 1 is communicated with an end of pump 4, and the other end of pump 4 is communicated with cold water pipe 2 10, pump 4 is stuck on the pump support 7, places the bottom in the chamber 17 of body 1; The chamber 17 of body 1 comprises a rapid heater 3, and rapid heater 3 has a water inlet 11, and water inlet 11 is positioned at the bottom of rapid heater 3, and water inlet 11 is communicated with the other end of cold water pipe 2 10, and water inlet 11 is used to accept carry the liquid that comes up from pump 4; One hot water outlet 13 is positioned at the top of rapid heater 3, and hot water outlet 13 is connected by a hot-water line 14.
It is the electromagnetic pump that the electromagnetic pump of E41000NA00240B3 also can be selected other model for use that described pump 4 can be selected model for use; Described pump also can be selected straightway pump for use, changes by frequency converter to enter straightway pump again after its output voltage and frequency become DC voltage through bridge-type voltage again.
On the described hot water outlet pipeline 14 or exit has a steam discharge device, steam discharge device has a steam outlet or a steam discharge device and a hot water outlet, its steam outlet also is positioned at the top of rapid heater, exceeds hot water outlet or exceeds the aqueous water liquid level.Steam outlet or steam discharge device can be positioned at any position on the rapid heater hot water effluent road.
Be specially: described steam discharge device is a kind of steam disengagement chamber 18, the other end of described hot-water line 14 is communicated with the inlet of steam disengagement chamber 18, one steam outlet 15 is positioned at the top of steam disengagement chamber 18, exceed the entry position of steam disengagement chamber 18, one hot water outlet is arranged at the bottom of steam disengagement chamber 18, is lower than the entry position of steam disengagement chamber 18; One kettle mouth 16 is communicated with the hot water outlet of steam disengagement chamber 18; The top of rapid heater 3 also comprises temperature sensor arranging device 19, and temperature sensor 20 is installed in the arranging device 19, and the interior hot water 12 of its probe and rapid heater 3 contacts.
Can adorn an activated carbon cartridge in the described water tank.
The fixed form of described rapid heater 3 can be lived its two ends with two resistant to elevated temperatures snares not shown in the figures, the other end of two circle has a hold-down screw eyelet respectively, the hold-down screw eyelet is accepted a hold-down screw respectively, and two screw posts not shown in the figures in the fixedly eyelet that hold-down screw will enclose and the chamber 17 are connected.
Described rapid heater 3, it can be straight tube, it also can be rectangle, it also can be the pipeline of other shape, described rapid heater can be that sub-assembly also can be an independent heated components, and its heating components and parts can be that Electric radiant Heating Film also can be that heat-generating pipe also can be other heating components and parts.The heating components and parts of described rapid heater are provided with the electrode that is used to connect heater circuit.Described rapid heater can be regulated its power, changes hot water effluent's temperature with the size of regulating power.
Described rapid heater 3 can be that the electric membrane quartz pipe also can be the heat generating component of tape thickness film circuit heater element.
The upper end of the inner chamber of described rapid heater 3 is provided with temperature sensor 20, and temperature sensor 20 can be selected temperature-sensing probe for use.
For the ease of the control temperature, prevent dry combustion method, more than among two embodiment, a temperature controller not shown in the figures all is equipped with on the surface of rapid heater, temperature controller can be a thermistor, also can be sensor, also can be probe, can also be temperature controller, can be other temperature control equipment.The assembling optimum position of temperature controller is on the surface of heating components and parts, also can be other position of rapid heater, as the overtemperature protection of rapid heater.
In addition, described heater circuit also can be selected soft starting circuit for use: with when starting rapid heater or pump, make the booster circuit of rapid heater full power operation or make all preferred soft starting circuit of booster circuit of pump full voltage work, described booster circuit is connected with described power supply.
Described heater circuit also comprises in order to when starting the work of pump full voltage, the idle cold water control circuit of rapid heater, described cold water control circuit is used to control the outflow of cold water, the shared kettle mouth of described cooling water outlet and hot water outlet, and described cold water control circuit is integrated on the circuit board.
Described heater circuit also comprises the time control circuit that hot water and cold water are flowed out by the kettle mouth, and this time control circuit is arranged on the circuit board.
Described temperature difference calculating and comparing module, power output control circuit are integrated on the chip and/or on the control circuit, its chip and/or control circuit are placed on the circuit board, also can be placed in other position; Its chip can select for use model to be: the chip of SN8P2714S, also can select the chip of other model for use.
Further, the control of described heater circuit is integrated on the circuit board 27, also can be integrated on other control device, and the function of hot water is especially carried and added to all functions of described circuit board 27 best control appliances.The function of hot water is especially carried and added to all functions of described circuit board 27 control appliances.
If sensor has defective or fault or can not connect fully, then the electronic installation on the circuit board is discerned this fault and can not starting device.
The instant-heating type electric kettle of present embodiment, its control method that adds hot water conditions is:
As shown in Figure 4, after connecting circuit, pump 4 is transported to rapid heater 3 with the cold water in the water tank 2 26 through cold water pipe 1, cold water pipe 2 10, rapid heater 3 Fast Heating, temperature sensor 20 is with detected real time temperature value transmission temperature difference calculating and comparing module 28, temperature difference calculating and comparing module 28 calculates the temperature difference of expectation leaving water temperature value and current temperature value, and judge current temperature value greater than still less than the expectation leaving water temperature, if current temperature value greater than expectation leaving water temperature value then step-down reduce and provide to the power of rapid heater 3; If current temperature value is then boosted to increase less than expectation leaving water temperature value and is provided to the power of rapid heater 3.
When hot water emit a certain amount of after, the time control circuit on the circuit board 27 sends the power cut-off signaling, stops to put hot water, after restarting hot water and emitting button 23, equipment is in running order again, continues to put hot water.
If the water that the user need not to heat starts cold water and emits button 24, pump 4 is started working, and the cold water 26 in the water tank 2 is delivered to kettle mouth 16 through rapid heater 3, is flowed out by kettle mouth 16, and rapid heater 3 is not worked therebetween.
When cold water emit a certain amount of after, the time control circuit on the circuit board 27 sends the power cut-off signaling, stops to put cold water, after restarting cold water and emitting button 24, equipment is in running order again, continues to put cold water.
The present invention is when work, cold water in the water tank is through the water pipe inflow pump, by pump cold water is delivered in the rapid heater, after connecting heater circuit, rapid heater carries out Fast Heating to the water of crossing its inner chamber, and hot water expands and rises, because steam outlet 15 is higher than hot water outlet, according to varying in size of aqueous water and water vapour density: when the density of aqueous water: 1.001g/cm3,100 ℃ of water vapour saturated-steam temperatures, water vapour density: 0.61kg/m3; Aqueous water can stablize, being flowed out by the kettle mouth through the hot water outlet pipe at the uniform velocity, and the water vapour that heating produces is then directly discharged outside the body or by steam pipe from steam outlet and is communicated with water tank, its condensed water is recovered in the water tank conserve water resource.The bubble that heating produces in time can be got rid of, be guaranteed that the hot water effluent is smooth and easy.
Embodiment two:
Shown in Fig. 1,3, described output control module is a kind of Flow-rate adjustment control circuit, the input of described Flow-rate adjustment control circuit is connected with the output of described temperature difference calculating and comparing module 28, the output of described Flow-rate adjustment control circuit is connected with power supply 30, and the output of described Flow-rate adjustment control circuit connects described pump 4 simultaneously.Described pump 4 can be regulated flow, changes hot water effluent's temperature with the size of regulating flow.
Shown in Fig. 1,3,5.The instant-heating type electric kettle of present embodiment, its control method that adds hot water conditions is:
After connecting circuit, pump 4 is transported to rapid heater 3 with the cold water in the water tank 2 26 through cold water pipe 8,10, rapid heater 3 Fast Heating, temperature sensor 20 is with detected real time temperature value transmission temperature difference calculating and comparing module 28, temperature difference calculating and comparing module 28 calculates the temperature difference of expectation leaving water temperature value and current temperature value, and judge that current temperature value is greater than still less than the expectation leaving water temperature, if current temperature value is then boosted to increase greater than expectation leaving water temperature value and provided to pump, increase the flow of pump; If current temperature value less than expectation leaving water temperature value then step-down reduce and provide to pump, reduce the flow of pump.
When hot water emit a certain amount of after, the time control circuit on the circuit board sends the power cut-off signaling, stops to put hot water, restart opening device after, equipment is in running order again, continues to put hot water.
In its heating process, because hot water outlet is lower than water vapour outlet 15, and varying in size according to aqueous water and water vapour density: when the density of aqueous water: 1.001g/cm3,100 ℃ of water vapour saturated-steam temperatures, water vapour density: 0.61kg/m3; Aqueous water can stablize, flowing out in kettle mouth 16 at the uniform velocity, and the water vapour of formation is then scurried out from steam outlet 15.If the water that the user need not to heat starts cold water and emits button 24, pump 4 is started working, and the cold water 26 in the water tank 2 is delivered to kettle mouth 16 through rapid heater 3, is flowed out by kettle mouth 16, and rapid heater 3 is not worked therebetween.
All the other structures of second embodiment are identical with first embodiment with the assembling mode.
Embodiment three:
As shown in Figure 1, 2, 3, described output control module is a kind of power output control circuit of the output voltage by controllable power and the combined control circuit that the Flow-rate adjustment control circuit combines, the input of described combined control circuit is connected with the output of described temperature difference calculating and comparing module 28, the output of described combined control circuit is connected with power supply 30, and the output of described combined control circuit connects described rapid heater 3 and pump 4 simultaneously.
The instant-heating type electric kettle of present embodiment, the control method of its heated condition is: regulate the flow of pump and the power of rapid heater simultaneously, change hot water effluent's temperature.
Above-mentioned listed specific implementation is nonrestrictive, and to one skilled in the art, in not departing from wooden invention scope, various improvement and the variation carried out all belong to protection scope of the present invention.

Claims (17)

1. instant-heating type electric kettle, include water tank (2), the rapid heater (3) that can contain cold water, be positioned at pump (4) and control circuit between described water tank (2) and the rapid heater (3), described water tank (2), rapid heater (3) and pump (4) are connected by pipeline; Described instant-heating type electric kettle also comprises the temperature sensor (20) that can experience the water temperature in the described rapid heater; It is characterized in that: described control circuit includes heater circuit, described heater circuit comprises prestoring to be expected leaving water temperature, be used for the detected Current Temperatures of more described temperature sensor and expect leaving water temperature and calculate the temperature difference calculating and comparing module (28) of the temperature difference between the two that the input of described temperature difference calculating and comparing module (28) is connected with described temperature sensor (20); Described heater circuit comprises that also the temperature difference between the Current Temperatures that calculates according to described temperature difference calculating and comparing module (28) and the expectation leaving water temperature controls the output control module (29) of heating mode, the input of described output control module (29) is connected with the output of described temperature difference calculating and comparing module (28), and the output of described output control module (29) is connected with power supply (30); Described output control module is a kind of Flow-rate adjustment control circuit, the input of described Flow-rate adjustment control circuit is connected with the output of described temperature difference calculating and comparing module (28), the output of described Flow-rate adjustment control circuit is connected with power supply (30), and the output of described Flow-rate adjustment control circuit connects described pump (4) simultaneously.
2. a kind of instant-heating type electric kettle according to claim 1, it is characterized in that: described output control module is a kind of power output control circuit of the output voltage by controllable power and the combined control circuit that the Flow-rate adjustment control circuit combines, the input of described combined control circuit is connected with the output of described temperature difference calculating and comparing module (28), the output of described combined control circuit is connected with power supply (30), and the output of described combined control circuit connects described rapid heater (3) and pump (4) simultaneously.
3. a kind of instant-heating type electric kettle according to claim 1 and 2 is characterized in that: described control circuit includes single-chip microcomputer, and described temperature difference calculating and comparing module (28) and output control module (29) are integrated on the described single-chip microcomputer.
4. a kind of instant-heating type electric kettle according to claim 3 is characterized in that: comprise a body (1), body (1) bottom is provided with a base plate (5), and the top of body (1) is formed a chamber (17) by top cover (22) sealing; A water tank (2) is placed at the rear of body (1); A waste water dish (6) is placed in the front lower place of body (1), is stamped one glass of dish (25) on the described waste water dish (6); Described water tank (2) top covers with a tank lid (21); Described top cover (22) is provided with that hot water is emitted button (23) and cold water is emitted button (24), and described hot water is emitted button (23) and emitted button (24) with cold water and be connected with a circuit board (27).
5. a kind of instant-heating type electric kettle according to claim 4, it is characterized in that: a passage (9) is arranged at the bottom of described water tank (2), passage (9) is communicated with cold water pipe one (8), the other end of cold water pipe one (8) is communicated with an end of pump (4), the other end of pump (4) is communicated with cold water pipe two (10), pump (4) is stuck on the pump support (7), places the interior bottom, chamber (17) of body (1); The chamber (17) of body (1) comprises a rapid heater (3), rapid heater (3) has a water inlet (11), water inlet (11) is positioned at the bottom of rapid heater (3), water inlet (11) is communicated with the other end of cold water pipe two (10), and water inlet (11) is used for the liquid that acceptance comes up from pump (4) conveying; One hot water outlet (13) is positioned at the top of rapid heater (3), and hot water outlet (13) is connected by a hot-water line (14).
6. a kind of instant-heating type electric kettle according to claim 5, it is characterized in that: described hot-water line (14) is gone up or the hot water exit has a steam discharge device, steam discharge device has a steam outlet or a steam disengagement chamber (18) and a hot water outlet, its steam outlet also is positioned at the top of rapid heater, exceeds hot water outlet or exceeds the aqueous water liquid level.
7. a kind of instant-heating type electric kettle according to claim 6, it is characterized in that: the other end of described hot-water line (14) is communicated with the inlet of steam disengagement chamber (18), one steam outlet (15) is positioned at the top of steam disengagement chamber (18), exceed the entry position of steam disengagement chamber (18), one hot water outlet is arranged at the bottom of steam disengagement chamber (18), is lower than the entry position of steam disengagement chamber (18); One kettle mouth (16) is communicated with the hot water outlet of steam disengagement chamber (18); The top of rapid heater (3) also comprises temperature sensor arranging device (19), and temperature sensor (20) is installed in the arranging device (19), and the interior hot water (12) of its probe and rapid heater (3) contacts.
8. a kind of instant-heating type electric kettle according to claim 3, it is characterized in that: described heater circuit includes soft starting circuit: with when starting rapid heater or pump, make the booster circuit of rapid heater full power operation or make the booster circuit of pump full voltage work be soft starting circuit, described booster circuit is connected with described power supply.
9. a kind of instant-heating type electric kettle according to claim 8, it is characterized in that: described heater circuit also comprises in order to when starting the work of pump full voltage, the idle cold water control circuit of rapid heater, described cold water control circuit is used to control the outflow of cold water, the shared kettle mouth of cooling water outlet and hot water outlet, described cold water control circuit is integrated on the circuit board.
10. a kind of instant-heating type electric kettle according to claim 9 is characterized in that: described heater circuit also comprises the time control circuit that hot water and cold water are flowed out by the kettle mouth, and this time control circuit is arranged on the circuit board.
11. the control method of instant-heating type electric kettle as claimed in claim 1 comprises the steps:
Step 1: described instant-heating type electric kettle enters duty;
Step 2: the default leaving water temperature that needs;
Step 3: pump is connected;
Step 4: control circuit is judged needs hot water or cold water, as needs hot water, then enters step 5, as needs cold water, then enters step 10;
Step 5: connect rapid heater (3);
Step 6: control circuit receives the detected temperatures value of the interior temperature sensor of rapid heater (3) (20);
Step 7: temperature computation comparison module (28) calculates the temperature difference of Current Temperatures and preset temperature;
Step 8: output control module (29) is according to temperature difference control heating mode.
Step 9: the hot water that reaches preset temperature value flows out;
Step 10: rapid heater (3) does not heat, and cold water flows out.
12. the control method of instant-heating type electric kettle according to claim 11, it is characterized in that: its control method that adds hot water conditions is: after connecting circuit, pump (4) is transported to rapid heater (3) with the cold water (26) in the water tank (2) through cold water pipe one (8) and cold water pipe two (10), rapid heater (3) Fast Heating, temperature sensor (20) is with detected real time temperature value transmission temperature difference calculating and comparing module (28), temperature difference calculating and comparing module (28) calculates the temperature difference of expectation leaving water temperature value and current temperature value, and judge current temperature value greater than still less than the expectation leaving water temperature, if current temperature value greater than expectation leaving water temperature value then step-down reduce and provide to the power of rapid heater (3); If current temperature value is then boosted to increase less than expectation leaving water temperature value and is provided to the power of rapid heater (3).
13. the control method of instant-heating type electric kettle according to claim 11, it is characterized in that: its control method that adds hot water conditions is: after connecting circuit, pump (4) is transported to rapid heater (3) with the cold water (26) in the water tank (2) through cold water pipe one (8) and cold water pipe two (10), rapid heater (3) Fast Heating, temperature sensor (20) is with detected real time temperature value transmission temperature difference calculating and comparing module (28), temperature difference calculating and comparing module (28) calculates the temperature difference of expectation leaving water temperature value and current temperature value, and judge that current temperature value is greater than still less than the expectation leaving water temperature, if current temperature value is then boosted to increase greater than expectation leaving water temperature value and provided to pump, increase the flow of pump; If current temperature value less than expectation leaving water temperature value then step-down reduce and provide to pump, reduce the flow of pump.
14. the control method of instant-heating type electric kettle according to claim 11 is characterized in that: its control method that adds hot water conditions is: regulate the flow of pump and the power of rapid heater simultaneously, change hot water effluent's temperature.
15. control method according to claim 12 or 13 or 14 described instant-heating type electric kettles, it is characterized in that: when hot water emit a certain amount of after, time control circuit on the circuit board (27) sends the power cut-off signaling, stop to put hot water, after restarting hot water and emitting button (23), equipment is in running order again, continues to put hot water.
16. the control method of instant-heating type electric kettle according to claim 11, it is characterized in that: if the water that the user need not to heat, start cold water and emit button (24), pump (4) is started working, cold water (26) in the water tank (2) is delivered to kettle mouth (16) through rapid heater (3), flowed out by kettle mouth (16), rapid heater (3) is not worked therebetween.
17. the control method of instant-heating type electric kettle according to claim 16, it is characterized in that: when cold water emit a certain amount of after, time control circuit on the circuit board (27) sends the power cut-off signaling, stop to put cold water, after restarting cold water and emitting button (24), equipment is in running order again, continues to put cold water.
CN 200810198445 2008-09-09 2008-09-09 Instant electric kettle and method for controlling same Expired - Fee Related CN101669763B (en)

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