CN101803864B - Safe and controllable temperature control device of electric heating kettle - Google Patents
Safe and controllable temperature control device of electric heating kettle Download PDFInfo
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- CN101803864B CN101803864B CN2010101256727A CN201010125672A CN101803864B CN 101803864 B CN101803864 B CN 101803864B CN 2010101256727 A CN2010101256727 A CN 2010101256727A CN 201010125672 A CN201010125672 A CN 201010125672A CN 101803864 B CN101803864 B CN 101803864B
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Abstract
The invention discloses a safe and controllable temperature control device of an electric heating kettle. The temperature control device comprises an electrical female socket and a switch control device, wherein the switch control device comprises a switch button and a lever, one end of the lever is connected with the switch button and the other end of the lever passes through the electrical female socket and extends out; the switch control device further comprises a magnetic resetting mechanism and blades, each blade is provided with an absorption tendon at the position corresponding to the magnetic resetting mechanism, and the absorption tendon is used for concentrating adsorbability and protrudes downwards to contact with the upper surface of the bottom of the electric heating kettle, the magnetic resetting mechanism drives the lever to sway up and down around an articulated shaft through up and down movements generated by mutual attracting or separation between the blade and the magnetic resetting mechanism, thereby the lever is respectively located at an switching-on position or a switching-off position of a circuit in the electrical female socket so as to control the switching-on or switching-off of power of the electric heating kettle. In the invention, air bubble generated in water after being boiled and driving force of water flow are utilized to drive the blades to rotate so as to control the lever to cut off an electrical device, the safety of an electric apparatus is improved, and the service life of the electric apparatus is prolonged.
Description
Technical field
The present invention relates to a kind of attemperating unit of electric kettle, specifically be meant the controlled attemperating unit of safety of electric kettle.
Background technology
Electric kettle is an indispensable apparatus in the daily life, and the attemperating unit of electric kettle is its vitals.Common electric kettle such as Fig. 1 in the prior art, shown in Figure 1A, it comprises kettle seat 14, kettle body 3, pot lid 1 and attemperating unit, kettle body 3 is provided with handle 2, attemperating unit comprises electric power female seat 11 and switch controlling device, electric power female seat 11 is positioned at the kettle seat 14 of electric kettle kettle body 3 bottoms, and be electrically connected with heat-generating disc 5, heat-generating disc 5 is attached to 3a at the bottom of the kettle of electric kettle kettle body 3 bottoms, also be provided with the vaporium 8 that can supply steam to enter in the kettle seat 14, electric power female seat 11 and electric power male seat 12 and wireless base 13 constitute the electric device of electric kettle, provide electric power with the water in the heating electric kettle for heating plate 5, wireless base 13, electric power male seat 12 and electric power female seat 11 are electrically connected successively, electric power female seat 11 and electric power male seat 12 match, wireless base 13 links to each other with external power source with electric power male seat 12 respectively, and the circuit that is connected with electric power male seat 12 is set in the electric power female seat 11.
Switch controlling device comprises shift knob 9, C shape spring 7, lever 6, quick 10 of steam and the steam pipe 4 that vertically is arranged in the kettle body and is communicated with vaporium 8, quick 10 of steam and C shape spring 7 all are positioned at the bottom of vaporium 8, C shape spring 7 is positioned at the top of quick 10 of steam, C shape spring 7 contacts with quick 10 of steam and lever 6 respectively, lever 6 is hinged on the electric power female seat 11 by jointed shaft, one end of lever 6 penetrates electric power female seat 11, the middle part is inconsistent with C shape spring 7, the other end links to each other with shift knob 9, lever 6 can be swung around jointed shaft under external force, and come the circuit of conducting or disconnection electric power female seat 11 inside by the diverse location after lever 6 swings, so that electric power female seat 11 presents conducting or disconnects two states with electric power male seat 12,6 pairs on lever should conducting or when disconnecting two states residing position be respectively conduction position or open position, when lever 6 is in conduction position, the electric power male seat 12 of electric power female seat and 11 conductings of electric power female seat, thereby heating heat-generating disc 5; When lever 6 was in open position, the electric power male seat 12 of electric power female seat and electric power female seat 11 disconnected.
The coefficient result of power that quick 10 and C shape spring 7 distortion that refer to steam of lever 6 suffered external force are produced in the above-mentioned electric kettle, control conducting and the disconnection that diverse location that lever 6 is in conducting or disconnection is controlled the electric power female seat by external force, its course of work is as follows: manually press shift knob 9, make the lever 6 of switch controlling device switch to conduction position from open position, i.e. this moment electric power male seat 12 and 11 conductings of electric power female seat, in this process because lever 6 is inconsistent with C shape spring 7, lever 6 makes C shape spring 7 that deformation takes place in the jointed shaft rotation process, the deformation of C shape spring 7 guarantees that lever 6 rests on the conduction position place, behind the circuit communication in the electric power female seat, heat-generating disc 5 beginning heating powers, the water in the heating electric kettle.
After the boiling of the water in the electric kettle, produce a large amount of steam, along with continuous heating, steam pressure improves, steam 15 enters into vaporium 8 from steam pipe 4, because quick 10 of steam also is exposed in the vaporium 8, steam 15 is with quick 10 of heat transferred steam, after quick 10 of steam is heated to uniform temperature, generation reflex action distortion, because quick 10 of steam contacts with C shape spring 7, the impulse force that quick 10 reflex action of steam is out of shape overcomes the deformation force of C shape spring 7, thereby push lever 6 open open position from conduction position, circuit in the electric power female seat disconnects, and heat-generating disc 5 stops heating, and lever 6 is returned to the original state when disconnecting.
Though the attemperating unit of above-mentioned electric kettle can be realized switch control functions, there is following defective:
(1) because water vapour is introduced to around the electric component, water vapour directly enters parts such as the components and parts of contact electrification such as heat-generating disc, appliance contact, terminal, has potential safety hazard.
(2) because the steam pipe in the switch controlling device can only feed steam, add accidentally in the water when making it that spilling water takes place in the steam pipe if add, steam can't enter vaporium from steam pipe, quick of uncontrollable steam produces deformation, lever is in the conduction position of electric power female seat always, electric device is conducting always, causes heat-generating disc to continue heating, may dryout the water in the electric kettle even cause other accidents.
(3) even the user does not add water in the steam pipe when adding water, water when boiling also the time regular meeting produce water and be splashed into steam pipe and cause jet chimney to stop up, the danger that causes switch controlling device can't operate as normal to bring.
(4) above-mentioned electric kettle is in using intermittently, and the easy breed bacteria of steam pipe in the kettle or go mouldy influences user's health, does not meet hygienic requirements.
Summary of the invention
The purpose of this invention is to provide a kind of controlled attemperating unit of safety of electric kettle, this attemperating unit is isolated the water vapour and the electrical appliance part that produce in water and the heating process fully, improves the control function and the security reliability of electric kettle.
Above-mentioned purpose of the present invention realizes by following technical solution: the attemperating unit that the safety of electric kettle is controlled, it comprises electric power female seat and switch controlling device, described electric power female seat is positioned at the kettle seat of electric kettle kettle body bottom, and be electrically connected with heat-generating disc, described switch controlling device comprises shift knob and lever, described lever is hinged on the described electric power female seat by jointed shaft, it is characterized in that: the pin joint of described lever and electric power female seat is positioned at the middle part of lever, one end of lever links to each other with shift knob, the other end stretches out after passing described electric power female seat, described switch controlling device also comprises magnetic resetting-mechanism and blade, described magnetic resetting-mechanism is positioned at described kettle seat, be used to adsorb blade, link to each other with the lever external part that stretches out from the electric power female seat, described blade is hinged on the upper surface at the bottom of the described electric kettle kettle, the contacted absorption muscle that is used for concentrating absorption affinity of described blade upper surface at the bottom of being provided with downward protrusion and electric kettle kettle with the corresponding position of described magnetic resetting-mechanism, described magnetic resetting-mechanism by with blade between moving up and down of being produced of mutual adhesive or separate drive described lever and swing up and down around jointed shaft, thereby make lever be in circuit turn-on or open position in the electric power female seat respectively, with the conducting or the disconnection of control electric kettle power supply.
The present invention in use, the water of packing in the kettle, on the upper surface of blade at the bottom of being attached to kettle under the gravity effect, press shift knob, shift knob drives the circuit that the lever swing that links with it comes conducting electric power female seat inside, so that electric power female seat and the conducting of electric power male seat, it also is the electric device conducting of whole electric kettle, electric kettle begins heating, the absorption muscle of described blade and the adhesive mutually of described magnetic resetting-mechanism, electric power female seat heating heat-generating disc; When steam that produces when the water in the kettle body seethes with excitement and convection current start described blade, the absorption muscle of described blade and described magnetic resetting-mechanism are separated, described magnetic resetting-mechanism drives the open position place of described lever swing to the circuit that disconnects electric power female seat inside, the electric device of electric kettle disconnects, and stops heating.Heat-generating disc is isolated fully with the electrical appliance part of bottom with the water in the kettle body in the electric kettle of the present invention, the security that has improved electrical equipment, the service life that also can improve electrical equipment simultaneously.
Among the present invention, described magnetic resetting-mechanism comprises magnet holder, magnet and back-moving spring, described magnet holder is suspension and is positioned at described kettle seat, the bottom of described magnet holder links to each other with the external part of described lever, described magnet is inlaid in the described magnet holder, the described magnet of lower end ring set of described back-moving spring, the upper end contacts with lower surface at the bottom of the described kettle, described blade and described magnet between the upper surface of magnetic attracting power at the bottom of being attached to described kettle when imposing on the downward elastic force of magnet greater than described back-moving spring, blade and magnet adhesive drive described lever and swing to the conduction position place around jointed shaft; The power that steam that water when boiling of described blade in described kettle body produces and convection current apply described blade is started during greater than the magnetic attracting power between described magnet and the described blade, described back-moving spring promotes described magnet and moves down, and swings to the open position place thereby drive described lever around jointed shaft.
Described magnet holder is a U type structure, and described magnet is a T type structure, and it has head and bar portion, and the head of magnet is inlaid in the described magnet holder, the bar portion of the described magnet of described back-moving spring suit.
The present invention can do following improvement: described heat-generating disc and described magnet and described back-moving spring corresponding position are provided with the contacted through hole of lower surface that can supply at the bottom of described magnet penetrate back and described kettle, described back-moving spring is positioned at described through hole with an end that contacts at the bottom of the described kettle, described blade is a flat structure, described blade the through hole corresponding position of absorption muscle at the bottom of being arranged on described kettle, be used for concentrating the absorption affinity between blade and the magnet.The through hole that is provided with at the bottom of the kettle among the present invention and the absorption muscle of blade setting all have the effect of the magnetic adsorptive power between concentrated blade and the magnet, are easier to the absorption control of magnet to blade.
The operating position that the present invention controls lever is that the adhesive by blade and magnet is used for controlling, blade will guarantee that the suction-combining force of itself and magnet imposes on the downward elastic force of magnet greater than back-moving spring, guarantee that again the steam and the convection current that produce start the blade applied force greater than the magnetic attracting power between magnet and the blade when the water in the kettle body seethes with excitement, blade can be started, therefore the structure of blade is very important, and blade of the present invention can adopt following structure:
Described blade is flat lid-like, it has integrated long handle and fan-shaped fan lid, described blade is hinged on the symmetry axis that pin joint at the bottom of the kettle is arranged in blade, described long handle is hinged on upper surface at the bottom of the described kettle by rotating shaft, described absorption muscle is arranged in the described long handle, thereby the upper surface of described fan lid offer become when a plurality of water when the kettle body in seethe with excitement steam with blade start make with blade and magnetic resetting-mechanism be separated to discharge orifice, the side that described fan covers offer be used for discharge water steam and keep the skin wet to chute.
Described fan cover offer to discharge orifice for two rows that are provided with along circumference to discharge orifice, be respectively be positioned at peripheral a plurality of outer to discharge orifice be positioned at inner a plurality of to discharge orifice, described a plurality of outer the arc border area of discharge orifice along described fan lid evenly is arranged on the same circumference describedly also evenly is arranged on the same circumference discharge orifice in a plurality of.
Described bore size to discharge orifice can not be excessive or too small, and bore size is excessive, and the power that makes progress that convection current produces during the water boiling can be disperseed, and does not have enough power that blade is started; Bore size is too small, in case the water boiling of kettle bottom, the power that convection current produces just can start blade, and the interior also not boiling fully of water of kettle this moment, therefore the size to the discharge orifice perforate should guarantee that the water in the kettle seethes with excitement fully, guarantee that again power that convection current when water seethes with excitement fully produces can overcome the absorption affinity between blade and the magnet, can start blade.Described outer to discharge orifice and interior diameter preferable range to discharge orifice between 3～6mm, described groove width to chute is between 8～12mm.
Blade among the present invention also can adopt following structure:
Described blade is flat lid-like, it has integrated short handle and pisiformis beans female cap, described blade is hinged on the symmetry axis that pin joint at the bottom of the kettle is arranged in blade, described short handle is hinged on upper surface at the bottom of the described kettle by rotating shaft, described absorption muscle is arranged in the described short handle, thereby the upper surface of described beans female cap offer a plurality of water boiling the time becoming steam in the kettle body with blade start the convection current aperture that blade and magnetic resetting-mechanism are separated, the side of described beans female cap are offered be used for discharge water steam and keep the skin wet to chute.
The convection current aperture of offering on the described beans female cap is for evenly being arranged on a plurality of convection current apertures on the same circumference, and the diameter of described convection current aperture is all between 3～6mm, and described groove width to chute is between 8～12mm.
Blade among the present invention also can adopt following structure:
Described blade is annular lid-like, it has integrated ring cover and described absorption muscle, described blade pass is crossed the upper surface at the bottom of rotating shaft is hinged on described kettle, be provided with between described blade and the described rotating shaft and be used to make blade after stressed rotation, can be returned to the torsion spring of original state, described ring cover and absorption muscle lay respectively at the both sides of described rotating shaft, thereby the upper surface of described ring cover offers a plurality of water boiling the time becoming steam in the kettle body and promotes blade and rotate the convection current aperture that blade and magnetic resetting-mechanism are separated along described rotating shaft, the side of described ring cover offer be used for discharge water steam and keep the skin wet to chute.
Blade among the present invention also can adopt following structure:
Described blade is the dome structure, described absorption muscle is the annular convex rib that described blade is convexly equipped with downwards, the described rotating shaft of described blade ring set, be hinged on upper surface at the bottom of the described kettle by rotating shaft, the upper surface of described blade offers a plurality of water boiling the time becoming steam in the kettle body and promotes blade along described rotating shaft) thus the convection current aperture that axially moves up blade and magnetic resetting-mechanism are separated, the side of described blade offer be used for discharge water steam and keep the skin wet to chute.
The diameter of above-mentioned convection current aperture all between 3～6mm, to the groove width of chute between 8～12mm.
The material of blade described in the present invention adopts the metal with magnetic to get final product, as the magnetic stainless steel material, also can adopt the magnetic of plastics and the moulding of magnetic material mixed injection molding, should guarantee to have good magnetic adsorptive power between blade and the magnet, guarantee the stability of blade in water and the service life of blade again.
Electric power female seat and electric power male seat and wireless base constitute the electric device of electric kettle, provide electric power with the water in the heating electric kettle to heating plate, described lever is hinged on the described electric power female seat by jointed shaft, and stretch out after passing described electric power female seat, described lever can be swung along jointed shaft under external force, and described lever passes through to change the circuit of described electric power female seat inside in swing process, so that present conducting between electric power female seat and the described electric power male seat or disconnect two states.Lever is respectively conduction position and open position in residing position corresponding to conducting or when disconnecting two states, and when lever was in conduction position, the electric power male seat of electric power female seat and the conducting of electric power female seat were heated heat-generating disc after the conducting of electric power female seat; When lever was in open position, the electric power male seat of electric power female seat and electric power female seat disconnected, and the electric power female seat stops to heat heat-generating disc.
Compared with prior art, the bubble that attemperating unit of the present invention produces in water after utilizing water to seethe with excitement and the powered blade rotation of current, then control lever with control magnetic resetting-mechanism and cut off electric device, thereby accurately control the switch of electric kettle, water vapour and electrical appliance part are isolated fully, can improve the security and the service life of electrical equipment.
Because attemperating unit of the present invention is not provided with jet chimney, even when in adding the water process spilling water taking place, water can not enter heat-generating disc from steam pipework yet, can not produce any influence to live components, thereby water when boiling also can not occur causes steam pipework to stop up to cause electric kettle to work the phenomenon generation that dangerous situation may occur because of being splashed in the steam pipe, the present invention simultaneously need not to be provided with steam pipe in electric kettle, meet hygienic requirements more.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further details.
Fig. 1 is the overall structure schematic diagram that comprises the electric kettle of attemperating unit in the prior art;
Figure 1A be the A of Fig. 1 to enlarged drawing, show annexation and position relation between lever, C shape spring and quick three of steam;
Fig. 2 is that attemperating unit of the present invention is installed in the overall structure schematic diagram in the electric kettle, this moment blade and magnet adhesive mutually, lever is in the conduction position place of electric device;
Fig. 3 is the overall structure schematic diagram that attemperating unit of the present invention is installed in electric kettle, and this moment, blade and magnet were separated, and lever is in the open position place of electric device;
Fig. 4 be the B of Fig. 2 to enlarged drawing, show the structural representation of blade and magnet adhesive;
Fig. 5 be the C of Fig. 3 to enlarged drawing, show the structural representation of blade and magnet disengaging;
Fig. 6 is that blade is hinged on perspective view on the heat-generating disc in the attemperating unit of the present invention;
Fig. 7 is the planar structure schematic diagram of Fig. 6;
Fig. 8 is the A-A profile of Fig. 7;
Fig. 9 is that another blade construction is hinged on perspective view on the heat-generating disc in the attemperating unit of the present invention;
Figure 10 is the planar structure schematic diagram of Fig. 9;
Figure 11 is the B-B profile of Figure 10;
Figure 12 is that another blade construction is hinged on perspective view on the heat-generating disc in the attemperating unit of the present invention;
Figure 13 is the planar structure schematic diagram of Figure 12;
Figure 14 is the C-C profile of Figure 13;
Figure 14 A be the D of Figure 14 to enlarged drawing, show the annexation of torsion spring and blade and rotating shaft;
Figure 15 is that another blade construction is hinged on perspective view on the heat-generating disc in the attemperating unit of the present invention;
Figure 16 is the planar structure schematic diagram of Figure 15;
Figure 17 is the D-D profile of Figure 16.
Description of reference numerals
Pot lid 1, handle 2, kettle body 3,3a at the bottom of the kettle, steam pipe 4, heat-generating disc 5, through hole 5a, lever 6, jointed shaft 6a, C shape spring 7, vaporium 8, shift knob 9, quick 10 of steam, electric power female seat 11, electric power male seat 12, wireless base 13, kettle seat 14, steam 15, magnet 16, blade 17, absorption muscle 17a, long handle 171a, fan covers 172a, outward to discharge orifice 173a, interior to discharge orifice 174, to chute 175a, short handle 171b, beans female cap 172b, convection current aperture 173b, to chute 175b, ring cover 172c, convection current aperture 173c, to chute 175c, convection current aperture 173d, to chute 175d, magnet holder 18, rotating shaft 19, back-moving spring 20, torsion spring 21
The specific embodiment
As the safety controlled attemperating unit of Fig. 1 to electric kettle shown in Figure 8, the attemperating unit that the safety of electric kettle is controlled, it comprises electric power female seat 11 and switch controlling device, electric power female seat 11 is positioned at the kettle seat 14 of electric kettle kettle body 3 bottoms, and be electrically connected with heat-generating disc 5, switch controlling device comprises shift knob 9 and lever 6, lever 6 is hinged on the electric power female seat 11 by jointed shaft 6a, the pin joint of lever 6 and electric power female seat 11 is positioned at the middle part of lever, one end of lever 6 links to each other with shift knob 9, the other end stretches out after passing electric power female seat 11, switch controlling device also comprises magnetic resetting-mechanism and blade 17, the magnetic resetting-mechanism is positioned at kettle seat 14, be used to adsorb blade, link to each other with the lever external part that stretches out from the electric power female seat, blade 17 is hinged on the upper surface of 3a at the bottom of the electric kettle kettle, the contacted absorption muscle 17a that is used for concentrating absorption affinity of blade 17 3a upper surface at the bottom of being provided with downward protrusion and electric kettle kettle with the corresponding position of magnetic resetting-mechanism, the magnetic resetting-mechanism by with blade 17 between moving up and down of being produced of mutual adhesive or separate drive lever 6 and swing up and down around jointed shaft 6a, thereby make lever 6 be in circuit turn-on or open position in the electric power female seat 11 respectively, with the conducting or the disconnection of control electric kettle power supply.
The present invention in use, the water of packing in the kettle, on the upper surface of blade at the bottom of being attached to kettle under the gravity effect, press shift knob, shift knob drives the circuit that the lever swing that links with it comes conducting electric power female seat inside, so that electric power female seat and the conducting of electric power male seat, it also is the electric device conducting of whole electric kettle, electric kettle begins heating, when pressing shift knob, when described lever is in the conduction position place of described electric power female seat, described blade and the adhesive mutually of described magnetic resetting-mechanism, electric power female seat heating heat-generating disc; When steam that produces when the water in the kettle body seethes with excitement and convection current started described blade, described blade and described magnetic resetting-mechanism were separated, and described magnetic resetting-mechanism drives the open position place of described lever swing to described electric power female seat.
Electric power female seat 11 and electric power male seat 12 and wireless base 13 constitute the electric device of electric kettle, provide electric power with the water in the heating electric kettle for heating plate 5, electric power female seat 11 and electric power male seat 12 match, the circuit that is connected with electric power male seat 12 is set in the electric power female seat 11, wireless base 13 links to each other with external power source with electric power male seat 12 respectively, electric power female seat 11 is electrically connected with heat-generating disc 5, lever 6 is hinged on the electric power female seat 11 by jointed shaft 6a, and stretch out after passing electric power female seat 11, lever 6 can be swung around jointed shaft 6a under external force, and come the circuit of conducting or disconnection electric power female seat 11 inside by the diverse location after lever 6 swings, so that present conducting between electric power female seat 11 and the electric power male seat 12 or disconnect two states, when lever 6 is in conduction position, the circuit turn-on of electric power female seat 11 inside, electric power female seat 11 and 12 conductings of electric power male seat, the i.e. conducting of electric power female seat; When lever 6 was in open position, the circuit of electric power female seat 11 inside disconnected, and electric power female seat 11 disconnects with electric power male seat 12, and promptly the electric power female seat disconnects.
Described magnetic resetting-mechanism comprises magnet holder 18, magnet 16 and back-moving spring 20, magnet holder 18 is suspension and is positioned at kettle seat 14, the bottom of magnet holder 18 links to each other with the external part of lever 6, magnet 16 is inlaid in the magnet holder 18, the lower end ring set magnet 16 of back-moving spring 20, the upper end contacts with the lower surface of 3a at the bottom of the kettle, blade 17 and magnet 16 between magnetic attracting power be attached to kettle when imposing on the downward elastic force of magnet 16 greater than back-moving spring 20 at the bottom of the upper surface of 3a, blade 17 and magnet 16 adhesives drive lever 6 and swing to the conduction position place around jointed shaft 6a; The power that steam that water when boiling of blade 17 in kettle body 3 produces and convection current apply blade 17 is started during greater than the magnetic attracting power between magnet 16 and the blade 17, back-moving spring 20 promotes magnet 16 and moves down, and swings to the open position place thereby drive lever 6 around jointed shaft 6a.
Described magnet holder 18 is a U type structure, and magnet 16 is a T type structure, and it has head and bar portion, and the head of magnet 16 is inlaid in the magnet holder 18, the bar portion of back-moving spring 20 suit magnets 16.
The lower surface of described heat-generating disc 5 and magnet 16 and back-moving spring 20 corresponding positions are provided with and can penetrate the contacted through hole 5a of lower surface back and 3a at the bottom of the kettle for magnet 16, the end that back-moving spring 20 contacts with 3a at the bottom of the kettle is positioned at through hole 5a, blade 17 is a flat structure, the absorption muscle 17a of blade 17 be arranged on the corresponding position of through hole 5a of 3a at the bottom of the kettle, be used for concentrating the absorption affinity between blade 17 and the magnet 16.
The operating position that the present invention controls lever is that the adhesive by blade and magnet is used for controlling, blade will guarantee that the suction-combining force of itself and magnet imposes on the downward elastic force of magnet greater than back-moving spring, guarantee that again the steam and the convection current that produce start the blade applied force greater than the magnetic attracting power between magnet and the blade when the water in the kettle body seethes with excitement, blade can be started.
Shown in Fig. 6 to 8, blade 17 among the present invention is flat lid-like, material is the magnetic stainless steel, it has integrated long handle 171a and fan-shaped fan lid 172a, blade 17 is hinged on the symmetry axis that the pin joint of 3a at the bottom of the kettle is arranged in blade, long handle 171a is hinged on the upper surface of 3a at the bottom of the kettle by rotating shaft 19, absorption muscle 17a is arranged in the long handle 171a, thereby the upper surface that fan cover 172a offer become when a plurality of water in kettle body 3 seethe with excitement steam with blade 17 start make with blade 17 and magnetic resetting-mechanism be separated to discharge orifice, the side that fan covers 172a offer be used for discharge water steam and keep the skin wet to chute 175, be 10mm to the groove width of chute 175a.
Fan cover offer on the 172a discharge orifice is two arranging discharge orifice of being provided with along circumference, be respectively be positioned at peripheral a plurality of outer to discharge orifice 173a be positioned at inner a plurality of to discharge orifice 174, outside a plurality of discharge orifice 173a evenly is arranged on the same circumference along the arc border area of fan lid, diameter to discharge orifice 173a is 4mm outward, in a plurality of discharge orifice 174 also evenly is arranged on the same circumference, interior diameter to discharge orifice 174 is between 3.
As shown in Figure 8, the magnetic adsorption site of blade absorption muscle 17a and magnet 16 be 12.15mm to the distance L 1 of rotating shaft 19, and fan cover 172 acting surface center, and to arrive the distance L 2 of rotating shaft 19 be 81.25mm.
The shape of blade among the present invention, the position of magnetic attraction force and rotating shaft need be determined according to size, heat-generating disc size, heat-generating disc power, the material of blade and magnetic field intensity of magnet of electric kettle or the like.
Size to the discharge orifice perforate among the present invention should guarantee that the water in the kettle seethes with excitement fully, guarantees that again power that convection current when water seethes with excitement fully produces can overcome the absorption affinity between blade and the magnet, can start blade.Described outer to discharge orifice and interior diameter preferable range to discharge orifice between 3～6mm, described groove width to chute is between 8～12mm.
The structure of blade can also adopt as Fig. 9 to structure shown in Figure 11 among the present invention, blade 17 is flat lid-like, it has integrated short handle 171b and pisiformis beans female cap 172b, blade 17 is hinged on the symmetry axis that the pin joint of 3a at the bottom of the kettle is arranged in blade, short handle 171b is hinged on the upper surface of 3a at the bottom of the kettle by rotating shaft 19, absorption muscle 17a is arranged in the short handle 171b, thereby the upper surface of beans female cap 172b offers a plurality of water boiling the time becoming steam in kettle body 3 and blade 17 is started makes the convection current aperture 173b that blade 17 and magnetic resetting-mechanism are separated, the side of beans female cap 172b offer be used for discharge water steam and keep the skin wet to chute 175b, be 10mm to the groove width of chute 175b.。
The convection current aperture 173b that offers on the beans female cap 172b is for evenly being arranged on a plurality of convection current apertures on the same circumference, and the diameter of convection current aperture 173b is between the 4mm.
As shown in figure 11, the magnetic adsorption site of blade absorption muscle 17a and magnet 16 is 9.0mm to the distance L 3 of rotating shaft 19, and the acting surface center of beans female cap 172b is 25.0mm to the distance L 4 of rotating shaft 19.
The diameter preferable range of convection current aperture 173b is 3～6mm, is between 8～12mm to the groove width preferable range of chute 175b.
The structure of blade can also adopt the structure shown in Figure 12 to Figure 14 A among the present invention, blade 17 is annular lid-like, it has integrated ring cover 172c and absorption muscle 17a, blade 17 is hinged on the upper surface of heat-generating disc 5 by rotating shaft 19, be provided with between blade 17 and the rotating shaft 19 and be used to make blade after stressed rotation, can be returned to the torsion spring 21 of original state, ring cover 172c and absorption muscle 17a lay respectively at the both sides of rotating shaft 19, thereby the upper surface of ring cover 172c offers a plurality of water boiling the time becoming steam in kettle body 3 and promotes blade 17 and rotate the convection current aperture 173c that blade 17 and magnetic resetting-mechanism are separated along rotating shaft 19, the side of ring cover 172c offer be used for discharge water steam and keep the skin wet to chute 175c.
The structure of blade can also adopt as Figure 15 to structure shown in Figure 17 among the present invention, blade 17 is the dome structure, absorption muscle 17a is the annular convex rib that blade 17 is convexly equipped with downwards, blade 17 ring set rotating shafts 19, be hinged on the upper surface of heat-generating disc 5 by rotating shaft 19, thereby the upper surface of blade 17 offers a plurality of water boiling the time becoming steam in kettle body 3 and promotes the convection current aperture 173d that blade 17 is separated blade 17 and magnetic resetting-mechanism along axially moving up of rotating shaft 19, the side of blade 17 offer be used for discharge water steam and keep the skin wet to chute 175d.
The diameter of above-mentioned convection current aperture all between 3～6mm, to the groove width of chute between 8～12mm.
The course of work of the attemperating unit of electric kettle of the present invention is as follows: the open position that lever 6 is in electric device is an original state, this moment, blade 17 was attached to the upper surface of heat-generating disc 5, circuit in the electric power female seat 11 is in off-state, magnet 16 separates with blade 17 under the thrust of back-moving spring 20, and back-moving spring 20 is in free extended configuration.Manually press shift knob 9, shift knob 9 drives the lever 6 that is attached thereto and upwards swings around jointed shaft 6a, when lever 6 swings to circuit turn-on position in the electric power female seat 11, the internal circuit conducting of electric power female seat 11, electric power male seat 12 and 11 conductings of electric power female seat, electric device is transformed into conduction position from open position, lever 6 drives the thrust that magnet holder 18 and magnet 16 overcome back-moving spring 20 and moves up synchronously in this process, make magnet 16 and blade 17 magnetic attracting, while compression reseting spring 20, back-moving spring 20 produces downward elastic force, because the magnetic attracting power between magnet 16 and the blade 17 imposes on the downward elastic force of magnet 16 greater than back-moving spring 20, make lever 6 rest on the conduction position place, circuit in the electric power female seat 11 keeps being communicated with, the electric device of electric kettle continues conducting, heat-generating disc 5 beginning heating powers, the water in the heating electric kettle.
Heat-generating disc 5 adds hot water to boiling, steam that water generates during boiling in the kettle body is a large amount of and convection current, along with continuous heating, steam pressure improves and convection intensity strengthens, the power that steam that produces when the water in the kettle body seethes with excitement and convection current apply blade 17 is during greater than the magnetic attracting power between magnet 16 and the blade 17, blade 17 is started, the magnetic attracting power of blade 17 and magnet 16 reduces, back-moving spring 20 promotes magnets 16 at this moment, then driving lever 6 moves down synchronously, lever 6 is passed open position from the circuit turn-on position in the electric power female seat 11, the internal circuit of electric power female seat 11 is disconnected, cause electric power male seat 12 and electric power female seat 11 to disconnect, the electric device of electric kettle disconnects, and heat-generating disc 5 stops heating, and lever 6 is returned to the original state when disconnecting.
Claims (12)
1. the controlled attemperating unit of the safety of electric kettle, it comprises electric power female seat (11) and switch controlling device, described electric power female seat (11) is positioned at the kettle seat (14) of electric kettle kettle body (3) bottom, and be electrically connected with heat-generating disc (5), described switch controlling device comprises shift knob (9) and lever (6), described lever (6) is hinged on the described electric power female seat (11) by jointed shaft (6a), it is characterized in that: the pin joint of described lever (6) and electric power female seat (11) is positioned at the middle part of lever, one end of lever (6) links to each other with shift knob (9), the other end stretches out after passing described electric power female seat (11), described switch controlling device also comprises magnetic resetting-mechanism and blade (17), described magnetic resetting-mechanism is positioned at described kettle seat (14), be used to adsorb blade, link to each other with the lever external part that stretches out from the electric power female seat, described blade (17) is hinged on the upper surface of (3a) at the bottom of the described electric kettle kettle, the contacted absorption muscle (17a) that is used for concentrating absorption affinity of described blade (17) (3a) upper surface at the bottom of being provided with downward protrusion and electric kettle kettle with the corresponding position of described magnetic resetting-mechanism, described magnetic resetting-mechanism by with blade (17) between moving up and down of being produced of mutual adhesive or separate drive described lever (6) and swing up and down around jointed shaft (6a), thereby make lever (6) be in circuit turn-on or open position in the electric power female seat (11) respectively, with the conducting or the disconnection of control electric kettle power supply.
2. the controlled attemperating unit of the safety of electric kettle according to claim 1, it is characterized in that: described magnetic resetting-mechanism comprises magnet holder (18), magnet (16) and back-moving spring (20), described magnet holder (18) is suspension and is positioned at described kettle seat (14), the bottom of described magnet holder (18) links to each other with the external part of described lever (6), described magnet (16) is inlaid in the described magnet holder (18), the described magnet of lower end ring set (16) of described back-moving spring (20), the upper end contacts with the lower surface of (3a) at the bottom of the described kettle, described blade (17) and described magnet (16) between magnetic attracting power be attached to described kettle when imposing on the downward elastic force of magnet (16) greater than described back-moving spring (20) at the bottom of the upper surface of (3a), blade (17) and magnet (16) adhesive drive described lever (6) and swing to the conduction position place around jointed shaft (6a); The power that steam that water when boiling of described blade (17) in described kettle body (3) produces and convection current apply described blade (17) is started during greater than the magnetic attracting power between described magnet (16) and the described blade (17), described back-moving spring (20) promotes described magnet (16) and moves down, and swings to the open position place thereby drive described lever (6) around jointed shaft (6a).
3. the controlled attemperating unit of the safety of electric kettle according to claim 2, it is characterized in that: described magnet holder (18) is a U type structure, described magnet (16) is a T type structure, it has head and bar portion, the head of magnet (16) is inlaid in the described magnet holder (18), the bar portion of the described magnet of described back-moving spring (20) suit (16).
4. the controlled attemperating unit of the safety of electric kettle according to claim 3, it is characterized in that: described heat-generating disc (5) is provided with and can penetrates the contacted through hole of lower surface (5a) back and (3a) at the bottom of the described kettle for described magnet (16) with described magnet (16) and described back-moving spring (20) corresponding position, the end that described back-moving spring (20) contacts with (3a) at the bottom of the described kettle is positioned at described through hole (5a), described blade (17) is a flat structure, the absorption muscle (17a) of described blade (17) is arranged on the corresponding position of through hole (5a) with (3a) at the bottom of the described kettle, is used for concentrating the absorption affinity between blade (17) and the magnet (16).
5. the controlled attemperating unit of the safety of electric kettle according to claim 4, it is characterized in that: described blade (17) is flat lid-like, it has integrated long handle (171a) and fan-shaped fan lid (172a), described blade (17) is hinged on the symmetry axis that the pin joint of (3a) at the bottom of the kettle is arranged in blade, described long handle (171a) is hinged on the upper surface of (3a) at the bottom of the described kettle by rotating shaft (19), described absorption muscle (17a) is arranged in the described long handle (171a), the upper surface of described fan lid (172a) offer become when a plurality of water when kettle body (3) in seethe with excitement steam with blade (17) thus start make with blade (17) and magnetic resetting-mechanism be separated to discharge orifice, the side that described fan covers (172a) offer be used for discharge water steam and keep the skin wet to chute (175a).
6. the controlled attemperating unit of the safety of electric kettle according to claim 5, it is characterized in that: what offer on the described fan lid (172) is to arrange discharge orifice along two of circumference setting to discharge orifice, be respectively be positioned at peripheral a plurality of outer to discharge orifice (173a) be positioned at a plurality of of inside to discharge orifice (174), described a plurality of outer the arc border area of discharge orifice (173a) along described fan lid evenly is arranged on the same circumference describedly also evenly is arranged on the same circumference discharge orifice (174) in a plurality of.
7. the controlled attemperating unit of the safety of electric kettle according to claim 6, it is characterized in that: described outer to discharge orifice (173a) and interior diameter to discharge orifice (174) all between 3～6mm, described groove width to chute (175a) is between 8～12mm.
8. the controlled attemperating unit of the safety of electric kettle according to claim 4, it is characterized in that: described blade (17) is flat lid-like, it has integrated short handle (171b) and pisiformis beans female cap (172b), described blade (17) is hinged on the symmetry axis that the pin joint of (3a) at the bottom of the kettle is arranged in blade, described short handle (171b) is hinged on the upper surface of (3a) at the bottom of the described kettle by rotating shaft (19), described absorption muscle (17a) is arranged in the described short handle (171b), the upper surface of described beans female cap (172b) offer a plurality of water boiling the time becoming steam in kettle body (3) with blade (17) thus start the convection current aperture (173b) that blade (17) and magnetic resetting-mechanism are separated, the side of described beans female cap (172b) are offered be used for discharge water steam and keep the skin wet to chute (175b).
9. the controlled attemperating unit of the safety of electric kettle according to claim 8 is characterized in that: the convection current aperture of offering on the described beans female cap (172b) (173b) is for evenly being arranged on a plurality of convection current apertures on the same circumference.
10. the controlled attemperating unit of the safety of electric kettle according to claim 9 is characterized in that: the diameter of described convection current aperture (173b) is all between 3～6mm, and described groove width to chute (175b) is between 8～12mm.
11. the attemperating unit that the safety of electric kettle according to claim 4 is controlled, it is characterized in that: described blade (17) is annular lid-like, it has integrated ring cover (172c) and described absorption muscle (17a), described blade (17) is hinged on the upper surface of (3a) at the bottom of the described kettle by rotating shaft (19), be provided with between described blade (17) and the described rotating shaft (19) and be used to make blade after stressed rotation, can be returned to the torsion spring (21) of original state, described ring cover (172c) and absorption muscle (17a) lay respectively at the both sides of described rotating shaft (19), the upper surface of described ring cover (172c) offer a plurality of water boiling the time becoming steam in kettle body (3) promote blade (17) along described rotating shaft (19) thus rotate the convection current aperture (173c) that blade (17) and magnetic resetting-mechanism are separated, the side of described ring cover (172c) offer be used for discharge water steam and keep the skin wet to chute (175c).
12. the attemperating unit that the safety of electric kettle according to claim 4 is controlled, it is characterized in that: described blade (17) is the dome structure, the annular convex rib that described absorption muscle (17a) is convexly equipped with downwards for described blade (17), described blade (17) ring set rotating shaft (19), be hinged on the upper surface of (3a) at the bottom of the described kettle by rotating shaft (19), the upper surface of described blade (17) offer a plurality of water boiling the time becoming steam in kettle body (3) promote blade (17) along described rotating shaft (19) thus the convection current aperture (173d) that axially moves up blade (17) and magnetic resetting-mechanism are separated, the side of described blade (17) offer be used for discharge water steam and keep the skin wet to chute (175d).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010101256727A CN101803864B (en) | 2010-02-12 | 2010-02-12 | Safe and controllable temperature control device of electric heating kettle |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010101256727A CN101803864B (en) | 2010-02-12 | 2010-02-12 | Safe and controllable temperature control device of electric heating kettle |
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| CN101803864A CN101803864A (en) | 2010-08-18 |
| CN101803864B true CN101803864B (en) | 2011-08-03 |
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| CN2010101256727A Active CN101803864B (en) | 2010-02-12 | 2010-02-12 | Safe and controllable temperature control device of electric heating kettle |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| FR3015210B1 (en) * | 2013-12-20 | 2016-01-01 | Seb Sa | INDUCTIVE CULINARY ARTICLE COMMUNICATING AND METHOD OF PAIRING SUCH A ARTICLE |
| CN103815794B (en) * | 2014-02-10 | 2017-11-07 | 珠海泰米科技有限公司 | The switching mechanism and electric cooker of electric cooker |
| CN109330380A (en) * | 2018-12-13 | 2019-02-15 | 熊兴剑 | A kind of milk drink heating stirring machine |
| CN110419946B (en) * | 2019-07-30 | 2021-09-10 | 厦门大白科技有限公司 | Kettle capable of displaying water volume |
| CN110558836B (en) * | 2019-10-11 | 2021-03-19 | 陈丰山 | Hot water kettle |
| CN112137452B (en) * | 2020-05-29 | 2022-05-27 | 浙江绍兴苏泊尔生活电器有限公司 | Heating disc assembly, stirring cup assembly and food processor |
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