CN101849767A - Electric kettle - Google Patents
Electric kettle Download PDFInfo
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- CN101849767A CN101849767A CN 201010183000 CN201010183000A CN101849767A CN 101849767 A CN101849767 A CN 101849767A CN 201010183000 CN201010183000 CN 201010183000 CN 201010183000 A CN201010183000 A CN 201010183000A CN 101849767 A CN101849767 A CN 101849767A
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- electric kettle
- conducting terminal
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- electromagnetic switch
- contact switches
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- A—HUMAN NECESSITIES
- A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
- A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
- A47J27/00—Cooking-vessels
- A47J27/21—Water-boiling vessels, e.g. kettles
- A47J27/21008—Water-boiling vessels, e.g. kettles electrically heated
- A47J27/21158—Devices to detect overheating or boiling with a single control element or unit
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- Food Science & Technology (AREA)
- Thermally Actuated Switches (AREA)
Abstract
The invention discloses an electric kettle, aiming at providing the electric kettle which is capable of regulating and controlling heating temperature of water and has low cost and convenient operation. The invention adopts the technical scheme that the electric kettle comprises a kettle body (1), an NTC (Negative Temperature Coefficient) thermistor, a heating device (5) and a PCB (6), wherein the kettle body (1) is divided into an upper space and a lower space by the heating device (5); the electric kettle also comprises an electromagnetic switch (3) and a driving mechanism (4) which are arranged in the lower space; one end of the drive mechanism corresponds to an armature bracket (3021) in the electromagnetic switch (3) at the space position; the other end of the driving mechanism (4) extends out of the side wall of the kettle body (1); and the on/off of two pairs of contact switches can be controlled by the on/off of the electromagnetic switch. The invention can be widely applied to the field of electric kettles capable of regulating and controlling the heating temperature of water.
Description
Technical field
The present invention relates to a kind of electric kettle, particularly a kind of electric kettle of adjustable water heating-up temperature.
Background technology
At present, electric kettle has become the widely used small household appliances of average family and unit.Traditional electric kettle generally all is provided with the temperature sensor of being with bimetal leaf.Its operation principle is: add an amount of water in electric kettle, then electric kettle is placed on the power supply base; The user is by the power switch handle of depressing electric kettle, and electric kettle is connected power supply, and electro-heat equipment begins to add hot water; Water is heated when burning boiling, and bimetallic temperature sensor deforms because of being elevated to boiling temperature, comes the driving switch reed by the bi-metal plate deformed kick then, switch is disconnected, cut off the power supply of electric kettle, the power switch of electric kettle is reset, and electro-heat equipment no longer heats.
Above-mentioned electric kettle gauge tap mainly adopts bimetal leaf as temperature sensor, controls thereby functions such as boiling of the water of electric kettle and anti-dry are carried out temperature, has accomplished the automation that makes water boiled substantially.That is: when the boiled boiling of water, electric kettle can auto power off, no longer adds hot water; When anhydrous when causing dry combustion method in the electric kettle, temp control switch can cut off the power supply automatically, and no longer heating prevents that electric kettle is damaged because of overheated.But this traditional electric kettle has the following disadvantages: can only control certain temperature spot of electric kettle, can not carry out multiple spot control to the temperature that water heated.That is: can only control at the ultra-high temperature protection temperature spot that water reaches when not having water generation dry combustion method in the temperature spot of boiling or the electric kettle; When the user wanted that water is heated to 85 ℃ or 90 ℃ or 95 ℃, this electric kettle just can not be realized.
In the prior art, the electric kettle of temperature-controlled is arranged also, as on 05 30th, 2008 applications, the patent No.s be: 200820048574.6 Chinese utility model patent.But present such electric kettle all needs to install relay or controllable silicon, has so also just caused the raising of electric kettle Costco Wholesale; Because the power switch of the electric kettle of existing temperature-controlled all is the form that adopts button, thereby the power switch handle is not set, pushes and seem very inconvenient again the client of mode so like this some have been accustomed to tradition.
Summary of the invention
According to the existing deficiency of electric kettle in the prior art, main purpose of the present invention provides a kind of low, easy to operate electric kettle of temperature, cost of adjustable water heating.
For solving the problems of the technologies described above, the technical solution adopted in the present invention is: a kind of electric kettle, comprise kettle body, NTC thermistor, electro-heat equipment and pcb board, and described electro-heat equipment is separated into two spaces up and down with described kettle body; In lower space, be provided with electromagnetic switch and driving mechanism; One end of described driving mechanism is corresponding with the armature bracket in the described electromagnetic switch on the locus, and the other end of described driving mechanism stretches out the sidewall of described kettle body; The break-make of described electromagnetic switch is also being controlled the connecting and disconnecting of two pairs of contact switches.
The two pairs of described contact switches are controlled the open close of power supply in described electro-heat equipment and the described pcb board simultaneously among the present invention.Because described contact switches is controlled the open close of power supply in described electro-heat equipment and the described pcb board simultaneously, so just avoided electric kettle in the EUP safety detects, the problem that has pcb board standby power power attenuation has also reduced the safety requirement simultaneously, has reduced the cost of electronic component.This compares with the electric kettle of temperature-controlled in the background technology, has marked improvement.
Driving mechanism described in the present invention is movably arranged on the described pcb board or is movably arranged on the sidewall of described kettle body or is movably arranged on the bottom of described kettle body by Connection Block.
The connecting and disconnecting of two pairs of described contact switches are to control by the adjutage that is arranged in the described armature bracket among the present invention.
The two sides of adjutage described in the present invention are respectively arranged with convex shoulder, and described convex shoulder is in the upper surface of first conducting terminal in two contact switches respectively.
The two sides of adjutage described in the present invention are respectively arranged with convex shoulder, and described convex shoulder is in respectively in two contact switches between first conducting terminal and second conducting terminal.
The connecting and disconnecting of two pairs of described contact switches are to control by the block that is arranged in the described armature bracket among the present invention, and described block is small top and big bottom structure.
Block described in the present invention is for falling trapezoid block or be the del piece.
Also be equipped with in the electromagnetic switch described in the present invention and be convenient to the resetting means that described contact switches is separated from each other, described resetting means is an elastic component.
Also be provided with temperature sensor, drive rod described in the present invention in the electromagnetic switch, described temperature sensor is attached on the described electro-heat equipment, and the two ends of described drive rod contact with the edge and the described armature bracket of temperature sensor respectively.
The bottom of electro-heat equipment described in the present invention also is provided with bimetallic temperature sensor.
The present invention compared with prior art is not provided with under relay or the low-cost situation of silicon controlled by electromagnetic switch and driving mechanism being set in electric kettle, being implemented in, and guarantees to heat up water the adjustable of temperature.The present invention compared with prior art also has easy to operate, reliable operation, advantage that cost is low.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention one;
Fig. 2 is the front view of electromagnetic switch among the embodiment one;
Fig. 2 a is the structural representation of another kind of adjutage among the embodiment one;
Fig. 3 is the left view of electromagnetic switch among the embodiment one;
Fig. 4 is the vertical view of electromagnetic switch among the embodiment one;
Fig. 5 is the front view of electromagnetic switch in the embodiment of the invention two;
Fig. 6 is the left view of electromagnetic switch among the embodiment two;
Fig. 7 is the vertical view of electromagnetic switch among the embodiment two;
Fig. 8 is the front view of electromagnetic switch in the embodiment of the invention three;
Fig. 9 is the left view of electromagnetic switch among the embodiment three;
Figure 10 is the vertical view of electromagnetic switch among the embodiment three;
The marking explanation of each several part structure in the accompanying drawing:
1-kettle body, the 2-base, the 3-electromagnetic switch, the 301-pedestal, the 3011-support, the 3012-locating hole, the 3013-through hole, the 3015-cylindrical seat, the 3021-armature bracket, 3022-armature, the 3023-adjutage, the 3024-solenoid, the 3025-convex shoulder, 3026-falls trapezoid block, the 3027-projection, the 304-switch shrapnel, 3041-first conducting terminal, 3042-second conducting terminal, the 305-spring, the 4-driving mechanism, the 401-handle, the 402-actuating arm, the 5-electro-heat equipment, the 6-PCB plate, the 7-temperature sensor, the 701-drive rod, the 702-brace.
The specific embodiment
In order to make technical problem to be solved by this invention, technical scheme and beneficial effect clearer,, the present invention is further elaborated below in conjunction with embodiment and accompanying drawing.Should be appreciated that the described specific embodiment of this part only can be in order to explaining the present invention, and be not used in qualification the present invention.
Specific embodiment one
As Fig. 1, Fig. 2, Fig. 3, shown in Figure 4, it is first embodiment among the present invention.As shown in Figure 1, present embodiment mainly comprises kettle body 1 and base 2.Be provided with NTC thermistor, electro-heat equipment 5, switching device and pcb board 6 in the described kettle body 1, described electro-heat equipment 5 is separated into two spaces up and down with described kettle body 1, described NTC thermistor is arranged on the temperature that upper space detects water, and (described NTC thermistor also can be arranged on the bottom of described electro-heat equipment, thereby judges the temperature that adds hot water.The set-up mode of described NTC thermistor is a prior art in the electric kettle of electronics survey water temperature.), described switching device and described pcb board 6 all are arranged in the lower space, and described NTC thermistor generally adopts the NTC negative tempperature coefficient thermistor.Described switching device comprises electromagnetic switch 3 and driving mechanism 4, described electromagnetic switch 3 is fixedly installed on the described pcb board 6, and described driving mechanism 4 is movably arranged on the sidewall of described kettle body 1 and (perhaps is movably arranged on the described pcb board 6 or is movably arranged on the bottom of described kettle body 1 by Connection Block.), described in fact pcb board 6 is exactly a control circuit.One end of described driving mechanism 4 is corresponding with the armature bracket 3021 in the described electromagnetic switch 3 on the locus, and the other end of described driving mechanism 4 stretches out the sidewall of described kettle body 1.Described pcb board 6 is fixed on the described electro-heat equipment 5 by support, described driving mechanism 4 is movably arranged on the sidewall of described kettle body 1 and is meant that the fulcrum and the kettle body 1 at described driving mechanism 4 middle parts are hinged, and (described movable contact is meant: described actuating arm 402 can be separated from each other on the locus with described armature bracket 3021 or described actuating arm 402 and described armature bracket 3021 in the horizontal direction can be along the guide rail slips that is parallel to each other in corresponding mutually and movable contact on the position for the actuating arm 402 in the described driving mechanism 4 and described armature bracket 3021.), the through hole that the handle 401 of described driving mechanism 4 passes on described kettle body 1 sidewall stretches out outside the described kettle body 1.
As shown in Figure 2, described electromagnetic switch 3 comprises pedestal 301, support 3011, armature bracket 3021, solenoid 3024, described solenoid 3024 and described support 3011 all are fixedly installed on the described pedestal 301, one end of described armature bracket 3021 is rotatably provided in the top of described support 3011 by pin, be installed with armature 3022 in the described armature bracket 3021, can produce magnetic force after described solenoid 3024 energisings and hold described armature 3022.About the operation principle of described electro-magnet switch 3, also can apply for the Chinese invention patent application documents of " application number is: 200810217156.X " on October 31st, 2008 with reference to the applicant.
As shown in Figure 3, Figure 4, also be set with two pairs of horizontal contact switches on the described pedestal 301, every pair of described contact switches comprises switch shrapnel 304, second conducting terminal 3042, and an end of wherein said switch shrapnel 304 is provided with first conducting terminal 3041 that matches with described second conducting terminal 3042.Described switch shrapnel 304 and described second conducting terminal 3042 on can being arranged on described pedestal 301, can also be arranged on the described pcb board 6.Described first conducting terminal 3041 is connected with power input, described second conducting terminal 3042 is connected with heater element with control circuit that (or described second conducting terminal 3042 is connected with power input, and described first conducting terminal 3041 is connected with heater element with control circuit.)。Also be formed with adjutage 3023 on the described armature bracket 3021, the two sides of described adjutage 3023 are respectively arranged with convex shoulder 3025.In the present embodiment, be not subjected in described contact switches under the situation of external force effect, described first conducting terminal 3041 and described second conducting terminal 3042 are for closely touching the state of closing, and described convex shoulder 3025 is in respectively between described first conducting terminal 3041 and described second conducting terminal 3042.
Shown in Fig. 2 a, another kind of organization plan as adjutage, described contact switches also can be designed to: be not subjected in described contact switches under the situation of external force effect, described first conducting terminal 3041 is a released state with described second conducting terminal 3042, and described convex shoulder 3025 is in the upper surface of first conducting terminal 3041 respectively.
As shown in Figure 3, also be equipped with in the described electromagnetic switch 3 and be convenient to the resetting means that described contact switches is separated from each other, described resetting means be spring 305 (also can adopt other elastomeric materials in actual the manufacturing, as: rubber, silica gel, shell fragment etc. can play reset response equally.)。As Fig. 2, shown in Figure 3, on the symmetrical centre line position of described pedestal 301, also be formed with cylindrical seat 3015, be drilled with locating hole 3012 in the described cylindrical seat 3015, described spring 305 is arranged between the projection 3027 on described locating hole 3012 and the described adjutage 3023.
In the present embodiment, when described electromagnetic switch 3 is not worked, drive division on the described armature bracket 3021 is under the effect of described spring 305 elastic force, the extended described convex shoulder 3025 in described adjutage 3023 both sides makes described first conducting terminal 3041 separate disconnection with described second conducting terminal 3,042 3041 pull-ups of described first conducting terminal.The described switch shrapnel 304 general copper sheets of good springiness such as constantan sheet or beryllium-bronze that adopt are made.Described first conducting terminal 3041 and described second conducting terminal 3042 are responsible for being switched on or switched off the power supply in described pcb board 6 and the described electro-heat equipment 5.In practical operation, in the time can causing two described contact switches to be separated from each other under the effect of described armature bracket 3021 at self gravitation, described spring 305 can be set (as shown in Figure 1, because described electromagnetic switch 3 is to turn around to be fixed on the described pcb board 6.)。
As the preferred embodiments of the present invention; also can be under the situation of considering manufacturing cost; keep traditional anti-dry function that electric kettle had by bimetallic temperature sensor is set under described electro-heat equipment, thereby make it reach the duplicate protection of electric kettle with described NTC thermistor.
The course of work and the operation principle of present embodiment are as follows: when the user need boil water, the user is placed on described kettle body 1 on the power supply base 2 after pouring water the described kettle body 1 of electric kettle into, adjusts the temperature knob of heating up water on the kettle body 1, configure the temperature that water need be heated to, as 90 ℃.Then, outer handle in the driving mechanism 4 401 is pressed, described driving mechanism 4 is just made circular motion around movable set-point, at this moment, described actuating arm 402 is pushed described armature bracket 3021, the armature bracket 3021 that is pressed is around 3011 rotations of described support, and described convex shoulder 3025 is also close to described pedestal 301.When described convex shoulder 3025 moves to when leaving first conducting terminal 3041, first conducting terminal 3041 contacts conducting with second conducting terminal 3042.When first conducting terminal 3041 with after second conducting terminal 3042 contacts conducting, control circuit is connected power supply, control circuit makes solenoid 3024 energisings produce suction, armature 3022 fixing on the armature bracket 3021 is held, make first conducting terminal 3041 and second conducting terminal 3042 keep good conducting state.Because first conducting terminal 3041 contacts with second conducting terminal 3042 and conducting, electro-heat equipment 5 heating powers, the water in the beginning heating kettle body 1.When the water in the kettle body 1 being heated to the water temperature of user's setting, control circuit sends signal and makes solenoid 3024 dead electricity, and solenoid 3024 loses suction.Armature bracket 3021 is under the effect of back-moving spring 305, armature bracket 3021 is around support 3011 rotations, armature 3022 leaves solenoid 3024, described convex shoulder 3025 is away from pedestal 301 and with 3041 pull-ups of first conducting terminal, finally make first conducting terminal 3041 separate disconnection with second conducting terminal 3042, electro-heat equipment 5 and control circuit outage, electric kettle has just been finished a process of heating up water like this.The control circuit here generally adopts MCU microprocessor and peripheral formations such as power circuit, drive circuit and gauge tap.Certainly, also can adopt ordinary electronic circuit and digital circuit to constitute control circuit.Circuit connecting mode generally is: from power supply～two pair contact switches～control circuit and electro-heat equipment 5, whether the break-make of switch is switched on by solenoid 4 or handle 401 is controlled.Certainly,, also can increase temperature protection switch in the general circuit for safe requirement, as: bimetallic temperature sensor, so, its connected mode is exactly: from power supply～two pair contact switches～bimetallic temperature sensor～control circuit and electro-heat equipment 5.Wherein, the switch of bimetallic temperature sensor can also be as required, is connected two pairs of described contact switches fronts (back) or is connected the back of control circuit, the front of electro-heat equipment 5.Wherein, the bimetallic temperature sensor of general bimetallic temperature sensor directly is close to and is installed on the electro-heat equipment 5, the temperature of direct sensing electro-heat equipment 5, and it mainly acts on and is: the variations in temperature that is used to detect electro-heat equipment 5.When the temperature of electro-heat equipment 5 surpasses the bimetallic temperature sensor deformation temperature; bimetallic temperature sensor produces kick; drive the switching mechanism of bimetallic temperature sensor; make its outage; so protected the electro-heat equipment 5 can overtemperature work effectively, so also just protected electric kettle can not damage because temperature is too high.
Specific embodiment two
This embodiment is with respect to the scheme among first embodiment, the main distinction has been to provide a kind of new electro-magnet switch, so will be described in further detail this electro-magnet switch in the present embodiment, but accompanying drawing 1 in the installation set-up mode reference example one of this electro-magnet switch.
As shown in Figure 5, described electromagnetic switch 3 comprises pedestal 301, support 3011, armature bracket 3021, solenoid 3024, described solenoid 3024 and described support 3011 all are fixedly installed on the described pedestal 301, one end of described armature bracket 3021 is rotatably provided in the top of described support 3011 by pin, be installed with armature 3022 in the described armature bracket 3021, can produce magnetic force after described solenoid 3024 energisings and hold described armature 3022.About the operation principle of described electro-magnet switch 3, also can apply for the Chinese invention patent application documents of " application number is: 200810217156.X " on October 31st, 2008 with reference to the applicant.
As Fig. 6, shown in Figure 7, also be set with two vertical contact switches on the described pedestal 301, every pair of described contact switches comprises two switch shrapnels 304, and an end of every described switch shrapnel 304 all is provided with first conducting terminal 3041 and described second conducting terminal 3042 that cooperatively interacts.Described switch shrapnel 304 on can being arranged on described pedestal 301, can also be arranged on the described pcb board 6.Described first conducting terminal 3041 is connected with power input, described second conducting terminal 3042 is connected with heater element with control circuit that (or described second conducting terminal 3042 is connected with power input, and described first conducting terminal 3041 is connected with heater element with control circuit.)。Also be set with small top and big bottom block (also can be integrally formed) on the described armature bracket 3021, described block can be down trapezoid block 3026, can also be the del piece.That adopts in the present embodiment is down trapezoid block 3026, described trapezoid block 3026 is arranged between two pairs of contact switches, is respectively equipped with the chamfering that matches with the described inclined-plane of trapezoid block 3026 with the described top of trapezoid block 3026 contacted two switch shrapnels 304.In the present embodiment, described contact switches is not subjected under the situation of external force effect, and described first conducting terminal 3041 is a released state with described second conducting terminal 3042.
As shown in Figure 6, also be equipped with in the described electromagnetic switch 3 and be convenient to the resetting means that described contact switches is separated from each other, described resetting means be spring 305 (can adopt other elastomeric materials in actual the use, as: rubber, silica gel, shell fragment etc. can play reset response equally.)。As shown in Figure 6, on the symmetrical centre line position of described pedestal 301, also be formed with cylindrical seat 3015, be drilled with locating hole 3012 in the described cylindrical seat 3015, described spring 305 is arranged between described locating hole 3012 and the described projection 3027 that falls on the trapezoid block 3026.
In the present embodiment, when described electromagnetic switch 3 is not worked, drive division on the described armature bracket 3021 is under the effect of described spring 305 elastic force, described trapezoid block 3026 leaves first conducting terminal 3041, and described first conducting terminal 3041 is in described second conducting terminal 3042 and separates off-state.The described switch shrapnel 304 general copper sheets of good springiness such as constantan sheet or beryllium-bronze that adopt are made.Described first conducting terminal 3041 and described second conducting terminal 3042 are responsible for being switched on or switched off the power supply in described pcb board 6 and the described electro-heat equipment 5.In practical operation, in the time can causing two described contact switches to be separated from each other under the effect of described armature bracket 3021 at self gravitation, described spring 305 can be set.(as shown in Figure 1, because described electromagnetic switch 3 is to turn around to be fixed on the described pcb board 6.)
The course of work and the operation principle of present embodiment are as follows: when the user need boil water, the user was placed on described kettle body 1 on the power supply base 2 after pouring water the described kettle body 1 of electric kettle into.Adjust the temperature knob of heating up water on the kettle body 1, configure the temperature that water need be heated to, as 90 ℃.Then, the outer handle in the driving mechanism 4 401 is pressed, described driving mechanism 4 is just made circular motion around movable set-point.Meanwhile, described actuating arm 402 is pushed described armature bracket 3021, and the armature bracket 3021 that is pressed is around 3011 rotations of described support, and the described trapezoid block 3026 that falls is also close to described pedestal 301.When falling trapezoid block 3026 compressing first conducting terminals 3041 and it is deformed to when contact with second conducting terminal 3042, the fixing also close gradually described solenoid 3024 of armature 3022 on the armature bracket 3021.When first conducting terminal 3041 and 3042 conductings of second conducting terminal, control circuit is connected power supply, control circuit makes solenoid 3024 energisings produce suction, armature 3022 fixing on the armature bracket 3021 is held, so just make down trapezoid block 3026 oppress first conducting terminal 3041 always, make first conducting terminal 3041 and second conducting terminal 3042 keep in touch energising.Here first conducting terminal 3041 and second conducting terminal 3042 all are the rubber-like conductive materials, as long as external force overcomes its elasticity, will produce distortion because of the effect of power.At this moment, because first conducting terminal 3041 contacts conducting with second conducting terminal 3042, electro-heat equipment 5 heating powers, the water in the beginning heating kettle body 1.When the water in the kettle body 1 being heated to the water temperature of user's setting, control circuit sends signal and makes solenoid 3024 dead electricity, and solenoid 3024 loses suction.Armature bracket 3021 is subjected to the effect that resetting-mechanism is a spring 305, and armature bracket 3021 is around support 3011 rotations, and armature 3022 leaves solenoid 3024, falls trapezoid block 3026 away from pedestal 301.The trapezoid block 3026 that falls at last leaves first conducting terminal, 3041, the first conducting terminals 3041 and restores to the original state automatically because of its elasticity.Such first conducting terminal 3041 also separates disconnection with second conducting terminal 3042, electro-heat equipment 5 and control circuit outage, and electro-heat equipment 5 no longer generates heat, and control circuit is no longer worked, and electric kettle has just been finished a process of heating up water like this.The control circuit here adopts MCU microprocessor and peripheral formations such as power circuit, drive circuit and gauge tap equally.Circuit connecting mode is identical with embodiment's ().
Specific embodiment three
This embodiment is with respect to the scheme among second embodiment, the main distinction is: the mechanism that described first conducting terminal 3041 and second conducting terminal 3042 are separated from each other, so will be described in further detail this mechanism in the present embodiment.
As Fig. 8, Fig. 9, shown in Figure 10, this mechanism comprises temperature sensor 7 and associated drive rod 701.In this embodiment, described temperature sensor 7 is a bimetallic temperature sensor, and described temperature sensor 7 is fixedly installed on the described pedestal 301.Have the through hole 3013 concentric with described locating hole 3012 on the described pedestal 301, an end of described drive rod 701 and the side edge of described temperature sensor 7 are touched.The other end of described drive rod 701 passes described through hole 3013 and contacts with the described projection 3027 that falls on the trapezoid block 3026 that (described locating hole 3012 also can be provided with in addition, makes the other end of described drive rod 701 contact or directly contact with described armature bracket 3021 with trapezoid block 3026 on the armature bracket 3021.)。The front of described temperature sensor 7 is close on the described electro-heat equipment 5, described temperature sensor 7 is connected with pedestal 301 by brace 702, and temperature sensor 7 also can directly be fixed on the electro-heat equipment 5 or by described brace 702 and be fixed on the described pcb board 6.
In when, the control circuit damage taking place or makeing mistakes when, may cause electro-heat equipment 5 to heat always, up to the situation that the water in the kettle body 1 is dryouied, when if the water in the kettle body 1 is dryouied, described electro-heat equipment 5 is still also in heating, the temperature of electro-heat equipment 5 will sharply rise in the kettle body 1, when the temperature of electro-heat equipment 5 surpasses the temperature spot of temperature sensor 7 distortion kicks, the bimetallic temperature sensor of being close to electro-heat equipment 5 in the kettle body 17 produces the kick distortion, its edge is upwards dug, the drive division of armature bracket 3021 to is pushed drive rod 701 in the edge, and armature bracket 3021 is boosted, and armature 3022 fixing on the armature bracket 3021 is pushed away solenoid 3024.Drive division on the armature bracket 3021 in the present embodiment is up big and down small trapezoid block 3026; because of it is driven bar 701 jack-up; no longer oppress first conducting terminal 3041; make first conducting terminal 3041 separate disconnection with second conducting terminal 3042; cause control circuit and electro-heat equipment 5 all to cut off the power supply; electro-heat equipment 5 no longer heats, and has played the overtemperature prote effect.
If when being set to the described mechanism in the present embodiment among the embodiment one; described drive rod 701 is in the process of described adjutage 3023 of jack-up and armature bracket 3021; also make convex shoulder 3025 with 3041 pull-ups of first conducting terminal; make first conducting terminal 3041 separate disconnection with second conducting terminal 3042; cause control circuit and electro-heat equipment 5 all to cut off the power supply; electro-heat equipment 5 no longer heats, and has played the overtemperature prote effect equally.
In the present embodiment, temperature sensor 7 is fixed on the pedestal 301 by brace 702, edge by bimetallic temperature sensor 7 directly promotes drive rod 701, also have a lot of schemes can promote drive rod 701 during actual design, distortion by bimetallic temperature sensor 7 drives a leverage, promote drive rod 701 and back down armature bracket 3021, reach the purpose that makes first conducting terminal 3041 and second conducting terminal 3042 separate disconnection.The number that is provided with of described temperature sensor 7 and described drive rod 701 also can be one or more according to the actual conditions relative set.
Claims (11)
1. electric kettle, comprise kettle body (1), NTC thermistor, electro-heat equipment (5) and pcb board (6), described electro-heat equipment (5) is separated into two spaces up and down with described kettle body (1), it is characterized in that: it also comprises electromagnetic switch (3) and the driving mechanism (4) that is arranged in the lower space; One end of described driving mechanism (4) is corresponding with the armature bracket (3021) in the described electromagnetic switch (3) on the locus, and the other end of described driving mechanism (4) stretches out the sidewall of described kettle body (1); The break-make of described electromagnetic switch (3) is also being controlled the connecting and disconnecting of two pairs of contact switches.
2. electric kettle according to claim 1 is characterized in that: two pairs of described contact switches are controlled the open close of described electro-heat equipment (5) and the middle power supply of described pcb board (6) simultaneously.
3. electric kettle according to claim 1 is characterized in that: described driving mechanism (4) is movably arranged on the bottom that described pcb board (6) is gone up or is movably arranged on the sidewall of described kettle body (1) or is movably arranged on described kettle body (1) by Connection Block.
4. electric kettle according to claim 1 is characterized in that: the connecting and disconnecting of two pairs of described contact switches are to control by the adjutage (3023) that is arranged in the described armature bracket (3021).
5. electric kettle according to claim 4 is characterized in that: the two sides of described adjutage (3023) are respectively arranged with convex shoulder (3025), and described convex shoulder (3025) is in the upper surface of first conducting terminal (3041) in two contact switches respectively.
6. electric kettle according to claim 4, it is characterized in that: the two sides of described adjutage (3023) are respectively arranged with convex shoulder (3025), and described convex shoulder (3025) is in respectively in two contact switches between first conducting terminal (3041) and second conducting terminal (3042).
7. electric kettle according to claim 1 is characterized in that: the connecting and disconnecting of two pairs of described contact switches are to control by the block that is arranged in the described armature bracket (3021), and described block is small top and big bottom structure.
8. electric kettle according to claim 7 is characterized in that: described block is for falling trapezoid block (3026) or be the del piece.
9. according to each described electric kettle in the claim 1 to 8, it is characterized in that: also be equipped with in the described electromagnetic switch (3) and be convenient to the resetting means that described contact switches is separated from each other, described resetting means is an elastic component.
10. electric kettle according to claim 9, it is characterized in that: also be provided with temperature sensor (7), drive rod (701) in the described electromagnetic switch (3), described temperature sensor (7) is attached on the described electro-heat equipment (5), and the two ends of described drive rod (701) contact with the edge and the described armature bracket (3021) of temperature sensor (7) respectively.
11. electric kettle according to claim 1 is characterized in that: the bottom of described electro-heat equipment (5) also is provided with bimetallic temperature sensor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101830001A CN101849767B (en) | 2010-05-25 | 2010-05-25 | Electric kettle |
| PCT/CN2011/074507 WO2011147294A1 (en) | 2010-05-25 | 2011-05-23 | Electric kettle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101830001A CN101849767B (en) | 2010-05-25 | 2010-05-25 | Electric kettle |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101849767A true CN101849767A (en) | 2010-10-06 |
| CN101849767B CN101849767B (en) | 2011-10-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010101830001A Expired - Fee Related CN101849767B (en) | 2010-05-25 | 2010-05-25 | Electric kettle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN101849767B (en) |
| WO (1) | WO2011147294A1 (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011147294A1 (en) * | 2010-05-25 | 2011-12-01 | 晶辉科技（深圳）有限公司 | Electric kettle |
| CN107242786A (en) * | 2017-08-16 | 2017-10-13 | 广东海翔教育科技有限公司 | A kind of energy-saving environment-friendly hot water kettle |
| CN107348833A (en) * | 2017-08-08 | 2017-11-17 | 广东美想电器有限公司 | A kind of electric cooker |
| CN108577528A (en) * | 2018-06-24 | 2018-09-28 | 盐城市威隆管夹制造有限公司 | A kind of solid-state contactless long-life electric kettle |
| CN108851981A (en) * | 2018-07-19 | 2018-11-23 | 陈海峰 | A kind of electric kettle |
| CN110384388A (en) * | 2018-04-18 | 2019-10-29 | 佛山市顺德区美的电热电器制造有限公司 | The control method and system of cooking apparatus, cooking apparatus |
| CN110558854A (en) * | 2019-07-30 | 2019-12-13 | 李技献 | Alarm device, lid and cooking utensil |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106954288A (en) * | 2017-05-16 | 2017-07-14 | 叶人龙 | Intelligent safety electric heating tube of kettle |
| CN107581890B (en) * | 2017-09-25 | 2022-07-08 | 中山市斯乐得电器有限公司 | Intelligent control energy-saving electric cooker |
| CN108451358A (en) * | 2018-03-19 | 2018-08-28 | 广州市吉谷电器科技有限公司 | A kind of electromagnetic boiling kettle |
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| GB2294187A (en) * | 1994-10-14 | 1996-04-17 | Philips Electronics Nv | Thermal control in a liquid heater |
| US5866878A (en) * | 1996-01-25 | 1999-02-02 | Seb S.A. | Kettle with power connector module |
| CN201710127U (en) * | 2010-05-25 | 2011-01-19 | 晶辉科技（深圳）有限公司 | Electric kettle |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000005068A (en) * | 1998-06-19 | 2000-01-11 | Pip Fujimoto Co Ltd | Electric kettle |
| CN2745458Y (en) * | 2004-08-06 | 2005-12-14 | 广东亿龙电器制品有限公司 | Tea pot water pot combination |
| CN101406361A (en) * | 2007-10-12 | 2009-04-15 | 陈克平 | Electron temperature-control electric kettle |
| CN201348379Y (en) * | 2008-09-25 | 2009-11-18 | 刘宏业 | Heating control device of electric kettle |
| CN201510140U (en) * | 2009-10-30 | 2010-06-23 | 刘子燊 | Novel electric kettle |
| CN101849767B (en) * | 2010-05-25 | 2011-10-26 | 晶辉科技（深圳）有限公司 | Electric kettle |
-
2010
- 2010-05-25 CN CN2010101830001A patent/CN101849767B/en not_active Expired - Fee Related
-
2011
- 2011-05-23 WO PCT/CN2011/074507 patent/WO2011147294A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB1052637A (en) * | ||||
| GB2294187A (en) * | 1994-10-14 | 1996-04-17 | Philips Electronics Nv | Thermal control in a liquid heater |
| US5866878A (en) * | 1996-01-25 | 1999-02-02 | Seb S.A. | Kettle with power connector module |
| CN201710127U (en) * | 2010-05-25 | 2011-01-19 | 晶辉科技（深圳）有限公司 | Electric kettle |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011147294A1 (en) * | 2010-05-25 | 2011-12-01 | 晶辉科技（深圳）有限公司 | Electric kettle |
| CN107348833A (en) * | 2017-08-08 | 2017-11-17 | 广东美想电器有限公司 | A kind of electric cooker |
| CN107242786A (en) * | 2017-08-16 | 2017-10-13 | 广东海翔教育科技有限公司 | A kind of energy-saving environment-friendly hot water kettle |
| CN110384388A (en) * | 2018-04-18 | 2019-10-29 | 佛山市顺德区美的电热电器制造有限公司 | The control method and system of cooking apparatus, cooking apparatus |
| CN110384388B (en) * | 2018-04-18 | 2022-01-11 | 佛山市顺德区美的电热电器制造有限公司 | Cooking appliance control method and system and cooking appliance |
| CN108577528A (en) * | 2018-06-24 | 2018-09-28 | 盐城市威隆管夹制造有限公司 | A kind of solid-state contactless long-life electric kettle |
| CN108851981A (en) * | 2018-07-19 | 2018-11-23 | 陈海峰 | A kind of electric kettle |
| CN110558854A (en) * | 2019-07-30 | 2019-12-13 | 李技献 | Alarm device, lid and cooking utensil |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2011147294A1 (en) | 2011-12-01 |
| CN101849767B (en) | 2011-10-26 |
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