CN102772133A - Heat-accumulation thermal-insulation type electric kettle with long-time thermal insulation structure - Google Patents
Heat-accumulation thermal-insulation type electric kettle with long-time thermal insulation structure Download PDFInfo
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- CN102772133A CN102772133A CN2012102564480A CN201210256448A CN102772133A CN 102772133 A CN102772133 A CN 102772133A CN 2012102564480 A CN2012102564480 A CN 2012102564480A CN 201210256448 A CN201210256448 A CN 201210256448A CN 102772133 A CN102772133 A CN 102772133A
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Abstract
The invention relates to a heat-accumulation thermal-insulation type electric kettle with a long-time thermal insulation structure. The heat-accumulation thermal-insulation type electric kettle comprises a kettle body (1) and a kettle cover (2) and is characterized in that the kettle body (1) comprises a casing (11) and an inner container (12) arranged in the casing, an electric heater (3) is arranged at the bottom of the kettle body (1), a heating body of the electric heater (3) is firmly contacted with the inner container (12), and an airtight phase-changing heat storing layer (13) is formed between the casing (11) and the inner container (12); an 80-95 DEG C heat-storing type thermal-insulation structure is formed by the inner container (12) and the airtight type phase-changing heat storing layer (13); the electric heater (3) comprises a heating body (3-1) and a heat storing body (3-2), the heat storing body (3-2) is connected with the heating body (3-1) through a plurality of connection pieces (3-3) to form a scattering type connection structure, heat conducting connection points (3-4) are arranged in partial of the connection pieces (3-3), and the heat storing body (3-2) and the inner container (12) form a point-shaped connection structure. The heat-accumulation thermal-insulation electric kettle has the self thermal insulation performance by means of the heat storing body, and the heat stored by the heat storing body can be used for heating the inner container through the heat conducting connection points, so that the heat storing body heats the inner container and water in the inner container slowly and lastingly, and the heat-accumulation thermal-insulation type electric kettle has the advantages of being capable of keeping warm for a long time.
Description
Technical field
The present invention relates to a kind of heat-storage heat-preserving formula electric kettle with long-acting insulation construction, and this electric kettle can boiling water and water temperature remained on required preference temperature for a long time, is useful in the occasion that water temperature is remained on 80 ℃～95 ℃.The electric heating appliance technical field that belongs to daily living article
Background technology
At present, electric heater is the common tool of people's daily life, and electric water heater receives people's welcome because its to boil water fast, smokeless and odorless have characteristics such as environmental protection.Particularly people have special requirement to the water quality water temperature when making tea, infuse coffee, brewing milk powder, lotus root starch or bubble kung fu tea.As brew high-grade tea such as Dragon Well tea, high-quality green tea, normally 80～85 ℃ of boiling water optimums; Make coffee or, normally require the boiling water more than 85 ℃ towards milk powder, lotus root starch etc.; And when drinking kung fu tea, need water temperature to keep about 95 ℃ in about 20 minutes always, again should not repeated heating, boil and change " fresh " of water.But electric heater of the prior art does not have heat insulation function mostly, perhaps, though have certain heat insulation function, has the shortcoming of unreasonable structure, heat insulation effect difference, therefore, can not satisfy the daily life needs.And traditional device that is used for the boiling water insulation; Like thermos flask; It is to rely on the sealing that vacuumizes in the middle of the double-deck glass liner with bottle plug to reduce radiation loss and guarantee insulation effect, but these attemperators do not possess from heating and boiling water function, particularly in both, has any one impaired its insulation effect just obviously to descend; Roll (opening) coolant-temperature gage and also reduce fast, the glass inner flask is easy to breakage again.Therefore, these thermos flasks can not satisfy people's the needs of making tea, infuse coffee, brewing milk powder, lotus root starch or bubble kung fu tea equally.
Summary of the invention
The object of the invention; Be in order to address the above problem; A kind of heat-storage heat-preserving formula electric kettle with long-acting insulation construction is provided, and to 100 ℃ boiling water, this electric kettle can remain on required optimal temperature with water temperature to the water in the kettle for a long time through boiled; Can satisfy the boiling water temperature requirement of high tealeaves such as Longjing tea, tippy tea, can satisfy again make coffee, the boiling water temperature requirement during towards milk powder, lotus root starch or ordinary tea leaves.
The object of the invention can reach through following measure:
A kind of heat-storage heat-preserving formula electric kettle with long-acting insulation construction comprises kettle body and pot lid, and its design feature is:
1) said kettle body comprises shell and the inner bag that is arranged at enclosure; Bottom at the kettle body is provided with electric heater; The heater of electric heater closely contacts with inner bag; Between shell and inner bag, be provided with closed cavity, in said closed cavity, fill up phase change heat-storing material, between shell and inner bag, form closed phase change heat storage layer; The phase transformation fusing point of said closed phase change heat storage layer is 80～95 ℃, constitutes 80 ℃～95 ℃ heat storage type insulation constructions by inner bag and closed phase change heat storage layer;
2) electric heater comprises heater and thermal store; The heater of electric heater closely contacts with inner bag; Thermal store be looped around heater around, thermal store is connected, forms the dispersion shape syndeton through some connectors with heater, in section connecting element, be provided with heat conduction tie point; Closely be connected with inner bag through said heat conduction tie point, make thermal store and inner bag form the point-like syndeton.
The object of the invention can also reach through following measure:
A kind of Technological improvement plan of the present invention is: thermal store is connected, forms the dispersion shape syndeton through six connectors with heater; Respectively be provided with a heat conduction tie point in three connectors therein; Closely be connected with inner bag through said heat conduction tie point, make thermal store and inner bag form the point-like syndeton.
A kind of Technological improvement plan of the present invention is: form heat insulation cavity between hot tank wall of said storage and the shell, in heat insulation cavity, establish foam layer.Thereby the heat that significantly reduces storage heat jar scatters and disappears, the temperature remains within the normal range to make shell simultaneously.
A kind of Technological improvement plan of the present invention is: said pot lid is provided with the water filling port that is communicated with the inner chamber of inner bag; The sidewall that is positioned at the water filling port left side on the pot lid stretches out, forms Hu Zui, and corresponding with it, the roof that is positioned at the water filling port right side on the pot lid is provided with the hasp plug; Said hasp plug hasp is covered water filling port on Hu Zui fully.Not only much cleaner, heat insulation effect is also better.
A kind of Technological improvement plan of the present invention is: between kettle body and the pot lid through being threaded; Opening part at inner bag is provided with internal thread, and is corresponding with it, is provided with external screw thread in the lower end of pot lid; On pot lid, also be provided with the O RunddichtringO.
A kind of Technological improvement plan of the present invention is: said shell be shaped as truncated cone, square, polygonal cylindricality or cydariform.
A kind of Technological improvement plan of the present invention is: the sidewall of said shell is provided with handle.
The invention has the beneficial effects as follows:
1, the present invention is owing to be provided with closed phase change heat storage layer, 80 ℃～95 ℃ heat storage type insulation constructions of formation; Therefore with boiled after 100 ℃; Water temperature remains on required optimal temperature (being phase transformation temperature points) always; The heating boiling water that needn't consume energy again, not only energy-conservation but also can avoid with the water heating for multiple times of making tea contribute beneficial trace elements in the dehydration, " fresh " of the water that keeps making tea.Simultaneously, because the characteristic of thermal store self-heat conserving, the heat energy of thermal store storage can only conduct tie point through heat and heat to inner bag, therefore, thermal store to inner bag and the boiling water heating be slow and lasting, have the beneficial effect of long-acting insulation.Therefore with boiled after 100 ℃; Water temperature remains on required optimal temperature (being phase transformation temperature points) always; The heating boiling water that needn't consume energy again, not only energy-conservation but also can avoid with the water heating for multiple times of making tea contribute beneficial trace elements in the dehydration, " fresh " of the water that keeps making tea.
2, owing in the improvement technical scheme of the present invention, form heat insulation cavity between hot tank wall of said storage and the shell, in heat insulation cavity, establish foam layer.Thereby the heat that significantly reduces storage heat jar scatters and disappears, and strengthens the heat insulation effect of kettle body when the temperature remains within the normal range at shell.
3, because in the improvement technical scheme of the present invention, said pot lid is provided with the water filling port that is communicated with the inner chamber of inner bag; The sidewall that is positioned at the water filling port left side on the pot lid stretches out, forms Hu Zui, and corresponding with it, the roof that is positioned at the water filling port right side on the pot lid is provided with the hasp plug; Said hasp plug hasp is covered water filling port on Hu Zui fully.Not only much cleaner, heat insulation effect is also better.
4, the phase transformation fusing point of phase change heat-storing material used in the present invention is 80 ℃～95 ℃; Can design the energy-saving thermal-insulation electric heating kettle of multiple model; The user can select according to actual needs, as when brewing Longjing tea, selects the energy-saving thermal-insulation electric heating kettle of 95 ℃ of series for use; When brewing tippy tea, can select 80 ℃, 82 ℃, 83 ℃, 85 ℃, 86 ℃, 88 ℃, 90 ℃, 92 ℃, 94 ℃ or 95 ℃ of any one thermal-insulation electric heating kettles for use; During towards coffee bubble coffee, towards milk powder or lotus root starch, can select 80～95 ℃ of thermal-insulation electric heating kettles that wait series as required for use.
Description of drawings
Fig. 1 is the structural representation of the specific embodiment of the invention 1.
Fig. 2 is the electric heater structural representation of the specific embodiment of the invention.
Fig. 3 is the structural representation of the specific embodiment of the invention 2.
Fig. 4 is the structural representation of the specific embodiment of the invention 3.
Fig. 5 is the structural representation of the specific embodiment of the invention 5.
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the present invention is made further detailed description:
Specific embodiment 1:
See figures.1.and.2; Present embodiment comprises kettle body 1 and pot lid 2, and said kettle body 1 comprises shell 11 and the inner bag 12 that is arranged at enclosure, is provided with electric heater 3 in the bottom of kettle body 1; The heater of electric heater 3 closely contacts with inner bag 12; Between shell 11 and inner bag 12, be provided with closed cavity, in said closed cavity, fill up phase change heat-storing material, between shell 11 and inner bag 12, form closed phase change heat storage layer 13; The phase transformation fusing point of said closed phase change heat storage layer 13 is 80～95 ℃, constitutes 80 ℃～95 ℃ heat storage type insulation constructions by inner bag 12 and closed phase change heat storage layer 13; Electric heater 3 comprises heater 3-1 and thermal store 3-2; The heater 3-1 of electric heater 3 closely contacts with inner bag 12; Thermal store 3-2 be looped around heater 3-1 around, thermal store 3-2 is connected, forms the dispersion shape syndeton through some connector 3-3 with heater 3-1, in section connecting element 3-3, is provided with heat conduction tie point 3-4; Closely be connected with inner bag 12 through said heat conduction tie point 3-4, both form the point-like syndeton to make thermal store 3-2 and inner bag 12.
Said pot lid 2 is provided with the water filling port 21 that is communicated with the inner chamber of inner bag 12; The sidewall that is positioned at water filling port 21 left sides on the pot lid 2 stretches out, forms kettle mouth 22, and corresponding with it, the roof that is positioned at water filling port 21 right sides on the pot lid 2 is provided with hasp plug 23; Said hasp plug 23 hasps are covered water filling port 21 on kettle mouth 22 fully.Not only much cleaner, heat insulation effect is also better.
Between kettle body 1 and the pot lid 2 through being threaded; Opening part at inner bag 12 is provided with internal thread, and is corresponding with it, is provided with external screw thread in the lower end of pot lid 2; On pot lid 2, also be provided with O RunddichtringO 24.Said shell 11 be shaped as truncated cone.
In the present embodiment:
The phase transformation fusing point of phase change heat storage layer 13 is 95 ℃, constitutes the special-purpose teapot that brews kung fu tea.It is the stainless steel material of 0.2mm that inner bag 12 all adopts thickness with shell 11.Because the composite phase-change heat-storing material that present embodiment adopts is that chemical stability is good, latent heat of phase change big, did not have cold-peace phenomenon of phase separation, nontoxic, non-corrosive material, therefore, can guarantee can not damage electric kettle, water quality also can never be contaminated.
Thermal store 3-2 is connected, forms the dispersion shape syndeton through six connector 3-3 with heater 3-1; Respectively be provided with a heat conduction tie point 3-4 among three connector 3-3 therein; Closely be connected with inner bag 12 through said heat conduction tie point 3-4, both form the point-like syndeton to make thermal store 3-2 and inner bag 12.
In addition; Can design the heat-storage heat-preserving formula electric kettle with long-acting insulation construction of multiple model with reference to present embodiment; The user can select according to actual needs; Can water temperature be remained on 95 ℃ of temperature of required optimum always as during drinking kung fu tea, rolling (opening) kettle, needn't consume energy adds hot water again, not only energy-conservation but also can avoid with the water heating for multiple times of making tea contribute beneficial trace elements in the dehydration, " fresh " of the water that keeps making tea; When brewing Longjing tea, select for use the heat-storage heat-preserving formula electric kettle with long-acting insulation construction of 85 ℃ of series the most desirable; When brewing tippy tea, can select for use the energy-saving insulation kettle that can select 80 ℃, 82 ℃ or 84 ℃ series for use the most desirable; During towards coffee bubble coffee, towards milk powder or lotus root starch, can select the heat-storage heat-preserving formula electric kettle with long-acting insulation construction of series such as 86～95 ℃ as required for use.
The operation principle of present embodiment is:
Energising is boiled after 100 ℃ with the water in the inner bag 12; The phase change heat storage layer 13 of solid state is after draw heat is warmed up to the phase transformation fusing point from 100 ℃ boiling water; By the solid state layer structure be melt into liquid condition and be full of inner bag and heat storage can between the space; Heat just is housed in the liquid phase-change material, and bubble kung fu tea, Longjing tea or make coffee, roll during the milk powder (opening) kettle and can will store heat and progressively discharge again is transformed into solid state fully up to the liquid phase-change material; Becoming solid-state process again by solid-state-heat absorption liquefy-heat release, water temperature remains on required optimal temperature (being phase transformation temperature points) always.The storage heat is by the latent heat of phase change of phase-change material and the product decision of phase-change material amount.Heater is in to the inner bag heating; Also thermal store is heated; When the water in being heated to inner bag seethed with excitement (100 ℃), heater stopped heating, and this moment, thermal store also was warming up to 100 ℃; Because it is very fast that inner bag and boiling water temperature wherein descend, so thermal store continues inner bag is heated through heat conduction tie point.Because because the characteristic of thermal store self-heat conserving; The heat energy of thermal store storage can only conduct tie point through heat and heat to inner bag, therefore, thermal store to inner bag and the boiling water heating be slow and lasting; Therefore with boiled after 100 ℃; Water temperature remains on required optimal temperature (being phase transformation temperature points) always, the heating boiling water that needn't consume energy again, not only energy-conservation but can avoid beneficial trace elements in the water heating for multiple times loss water of making tea, " fresh " of the water that keeps making tea.
The heat-storage heat-preserving formula electric kettle with long-acting insulation construction of present embodiment adopts following specifications and models:
The heat-storage heat-preserving formula electric kettle size table that table one is not with handles with long-acting insulation construction
Specific embodiment 2:
With reference to Fig. 3, the characteristics of present embodiment are:
Between the outer wall of phase change heat storage layer 13 and shell 11, form heat insulation cavity, in this heat insulation cavity, establish foam layer 14.Thereby the heat that significantly reduces storage heat jar scatters and disappears, the temperature remains within the normal range to make shell simultaneously.
All the other are with specific embodiment 1.
Specific embodiment 3:
With reference to Fig. 4, the characteristics of present embodiment are:
The characteristics of present embodiment are: on the sidewall of said shell 11, be provided with handle 25.Other are identical with specific embodiment 2.
The described heat-storage heat-preserving formula electric kettle with long-acting insulation construction of present embodiment adopts following specifications and models:
The heat-storage heat-preserving formula electric kettle size table that table two is with handles with long-acting insulation construction
Specific embodiment 4:
The characteristics of present embodiment 4 are: the syndeton between kettle body 1 and the pot lid 2 is conventional electric hot water spring snap type syndeton, and promptly the rear end of pot lid 2 and kettle body 1 are for rotary type is connected, and the front end of pot lid 2 is connected for the push type snap-on with kettle body 1.Other are identical with specific embodiment 1 to 3 arbitrary embodiment.
Specific embodiment 5:
The characteristics of present embodiment 5 are:
With reference to Fig. 5, the present invention can also process the heat-storage heat-preserving formula electric heating kettle with long-acting insulation construction, promptly comprises the pot body 5 and pot cover 6 of electric heating kettle, on pot cover 6, is provided with the water filling port 61 that is communicated with the inner chamber of inner bag 62; The sidewall that is positioned at water filling port 61 left sides on the pot cover 6 stretches out, forms pot mouth 62; On the roof that is positioned at water filling port 61 right sides on the pot cover 6, be provided with hasp plug 63; Said hasp plug 63 hasps are covered water filling port 61 on pot mouth 62 fully.Pot body 5 is provided with carrying handle 4.
Other embodiment:
The shape of said shell 11 can be square, polygonal cylindricality, cydariform or other shapes.The phase transformation fusing point of said phase change heat storage layer 13 is 80 ℃, 82 ℃, 83 ℃, 85 ℃, 86 ℃, 88 ℃, 90 ℃, 92 ℃ or 94 ℃.
The thin stainless steel material of the kettle body and function of kettle is processed, and shape has truncated cone, also can make other polygonal columns, drum type or other shapes.The water holding volume of kettle has 0.48～1.96L plurality of specifications.
The present invention charges into the composite phase-change heat-storing material in the cavity between wall and the storage heat jar outside the tank, constitutes composite phase-change storage thermosphere; The composite phase-change heat-storing material that charges in the cavity is that chemical stability is good, latent heat of phase change big, did not have cold-peace phenomenon of phase separation, nontoxic, non-corrosive material, and guaranteeing not damage kettle, water quality also can never be contaminated.
The above; Be merely the preferable specific embodiment of the present invention; But protection scope of the present invention is not limited thereto; Any technical staff who is familiar with the present technique field is equal to replacement or change according to technical scheme of the present invention and inventive concept thereof in the scope that the present invention discloses, all belong to protection scope of the present invention.
Claims (8)
1. the heat-storage heat-preserving formula electric kettle with long-acting insulation construction comprises kettle body (1) and pot lid (2), it is characterized in that:
1) said kettle body (1) comprises shell (11) and is arranged at the inner bag (12) of enclosure; Be provided with electric heater (3) in the bottom of kettle body (1); The heater of electric heater (3) closely contacts with inner bag (12); Between shell (11) and inner bag (12), be provided with closed cavity, in said closed cavity, fill up phase change heat-storing material, between shell (11) and inner bag (12), form closed phase change heat storage layer (13); The phase transformation fusing point of said closed phase change heat storage layer (13) is 80～95 ℃, constitutes 80 ℃～95 ℃ heat storage type insulation constructions by inner bag (12) and closed phase change heat storage layer (13);
2) electric heater (3) comprises heater (3-1) and thermal store (3-2); The heater (3-1) of electric heater (3) closely contacts with inner bag (12); Thermal store (3-2) be looped around heater (3-1) around; Thermal store (3-2) is connected, forms the dispersion shape syndeton through some connectors (3-3) with heater (3-1); In section connecting element (3-3), be provided with heat conduction tie point (3-4), closely be connected with inner bag (12) through said heat conduction tie point (4-5), both form the point-like syndeton to make thermal store (3-2) and inner bag (12).
2. a kind of heat-storage heat-preserving formula electric kettle according to claim 1 with long-acting insulation construction; It is characterized in that: thermal store (3-2) is connected, forms the dispersion shape syndeton through six connectors (3-3) with heater (3-1); Respectively be provided with a heat conduction tie point (3-4) therein in three connectors (3-3); Closely be connected with inner bag (12) through said heat conduction tie point (3-4), both form the point-like syndeton to make thermal store (3-2) and inner bag (12).
3. a kind of heat-storage heat-preserving formula electric kettle with long-acting insulation construction according to claim 1 and 2, it is characterized in that: the phase transformation fusing point of phase change heat storage layer (13) is 80 ℃, 82 ℃, 83 ℃, 85 ℃, 86 ℃, 88 ℃, 90 ℃, 92 ℃ or 95 ℃.
4. a kind of heat-storage heat-preserving formula electric kettle according to claim 1 and 2 with long-acting insulation construction; It is characterized in that: between the outer wall of phase change heat storage layer (13) and shell (11) inwall, heat insulation cavity is set, in this heat insulation cavity, establishes foam layer (14).
5. a kind of heat-storage heat-preserving formula electric kettle according to claim 1 with long-acting insulation construction, it is characterized in that: said pot lid (2) is provided with the water filling port (21) that is communicated with the inner chamber of inner bag (12); The sidewall that is positioned at water filling port (21) left side on the pot lid (2) stretches out, forms Hu Zui (22); On the roof that is positioned at water filling port (21) right side on the pot lid (2), be provided with hasp plug (23); Said hasp plug (23) hasp is covered water filling port (21) on Hu Zui (22) fully.
6. a kind of heat-storage heat-preserving formula electric kettle with long-acting insulation construction according to claim 1 is characterized in that: kettle body (1) is connected with pot lid (2) through screw thread; Inner bag (12) opening part in kettle body (1) is provided with internal thread, is provided with external screw thread in the lower end of pot lid (2); On pot lid (2), also be provided with O RunddichtringO (24).
7. a kind of heat-storage heat-preserving formula electric kettle with long-acting insulation construction according to claim 1 is characterized in that: said kettle body (1) be shaped as truncated cone, square, polygonal cylindricality or cydariform.
8. a kind of heat-storage heat-preserving formula electric kettle with long-acting insulation construction according to claim 1 is characterized in that: on the sidewall of said shell (11), be provided with handle (25).
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| CN2012102564480A CN102772133A (en) | 2012-07-23 | 2012-07-23 | Heat-accumulation thermal-insulation type electric kettle with long-time thermal insulation structure |
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| CN2012102564480A CN102772133A (en) | 2012-07-23 | 2012-07-23 | Heat-accumulation thermal-insulation type electric kettle with long-time thermal insulation structure |
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Cited By (11)
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| CN102920325A (en) * | 2012-11-27 | 2013-02-13 | 广州市粤首实业有限公司 | Vacuum insulation electric kettle of long-acting automatic insulation structure |
| CN102920332A (en) * | 2012-12-03 | 2013-02-13 | 广州市粤首实业有限公司 | Vacuum and heat-storage heat-preservation type dry-burning-prevention electric kettle with long-effect automatic heat-preservation structure |
| CN102920328A (en) * | 2012-11-27 | 2013-02-13 | 广州市粤首实业有限公司 | Heat storing insulation electric kettle of long-acting automatic insulation structure |
| CN102920327A (en) * | 2012-11-27 | 2013-02-13 | 广东粤首新科技有限公司 | Heat storing automatic insulation electric kettle |
| CN102920326A (en) * | 2012-11-27 | 2013-02-13 | 广东粤首新科技有限公司 | Long-acting automatic insulation electric water heater |
| CN102973144A (en) * | 2012-12-03 | 2013-03-20 | 余鸿 | Heat-storage heat insulation type dry burning prevention electric kettle with long-acting automatic heat insulation structure |
| CN102973141A (en) * | 2012-12-03 | 2013-03-20 | 余鸿 | Long-acting automatic heat-preserving dry-burning-resistant electric water heater |
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| CN103536189A (en) * | 2013-10-24 | 2014-01-29 | 苏州图卡节能科技有限公司 | Energy-saving type heating container and manufacturing method thereof |
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| CN102920326A (en) * | 2012-11-27 | 2013-02-13 | 广东粤首新科技有限公司 | Long-acting automatic insulation electric water heater |
| CN102920332A (en) * | 2012-12-03 | 2013-02-13 | 广州市粤首实业有限公司 | Vacuum and heat-storage heat-preservation type dry-burning-prevention electric kettle with long-effect automatic heat-preservation structure |
| CN102973144A (en) * | 2012-12-03 | 2013-03-20 | 余鸿 | Heat-storage heat insulation type dry burning prevention electric kettle with long-acting automatic heat insulation structure |
| CN102973141A (en) * | 2012-12-03 | 2013-03-20 | 余鸿 | Long-acting automatic heat-preserving dry-burning-resistant electric water heater |
| CN103027596A (en) * | 2012-12-29 | 2013-04-10 | 广东新宝电器股份有限公司 | Heater with jetting function |
| CN103536189A (en) * | 2013-10-24 | 2014-01-29 | 苏州图卡节能科技有限公司 | Energy-saving type heating container and manufacturing method thereof |
| CN110087516A (en) * | 2016-10-25 | 2019-08-02 | 普罗巴尔科有限公司 | Cooking apparatus with handle arrangement |
| CN111035274A (en) * | 2019-12-31 | 2020-04-21 | 广东美的厨房电器制造有限公司 | Cooking device |
| CN111035274B (en) * | 2019-12-31 | 2021-12-10 | 广东美的厨房电器制造有限公司 | Cooking device |
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Application publication date: 20121114 |