CN102846197A - Vacuum insulation type electric kettle with long-term insulation structure - Google Patents
Vacuum insulation type electric kettle with long-term insulation structure Download PDFInfo
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- CN102846197A CN102846197A CN201210256432XA CN201210256432A CN102846197A CN 102846197 A CN102846197 A CN 102846197A CN 201210256432X A CN201210256432X A CN 201210256432XA CN 201210256432 A CN201210256432 A CN 201210256432A CN 102846197 A CN102846197 A CN 102846197A
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Abstract
The invention relates to a vacuum insulation type electric kettle with a long-term insulation structure. The electric kettle comprises a kettle body and a kettle lid, and is characterized in that the kettle body comprises a casing and a liner arranged in the casing. An electric heater is arranged at the bottom of the kettle body, a closed cavity is arranged between the casing and the liner and vacuumized, and a closed vacuum thermal insulating layer is formed between the casing and the liner; a vacuum insulation structure at a temperature between 80 DEG C and 95 DEG C is formed by the liner and the closed vacuum thermal insulating layer; the electric heater comprises a heating unit and a heat accumulation unit, wherein the heating unit of the electric heater is contacted closely with the liner, and the heat accumulation unit encircles the heating unit and is connected with the heating unit through a plurality of connection pieces to form a scattering connection structure; and heat conduction connections are arranged in part of the connection pieces, and part of the connection pieces is tightly connected with the liner through the heat conduction connections, so that a point connection structure is formed between the heat accumulation unit and the liner. According to the vacuum insulation type electric kettle with the long-term insulation structure, the heat accumulation unit has the advantage of self-insulation, and the heat energy stored in the heat accumulation unit can heat the liner only through the heat conduction connections, so that the heating of the heat accumulation unit to the liner and boiling water in the liner is slow and lasting, and the electric kettle has a long-term insulation effect.
Description
Technical field
The present invention relates to a kind of vacuum heat insulation type electric kettle of long-acting thermal-insulating structure, and this electric kettle can boiling water and water temperature remained on required preference temperature for a long time.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 is because its to boil water fast, smokeless and odorless have the characteristics such as environmental protection, and is welcomed by the people.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 the high-grade tea such as Dragon Well tea, high-quality green tea, normally 80~85 ℃ of boiling water optimums; Make coffee or rush milk powder, lotus root starch etc., normally require the boiling water more than 85 ℃; And when drinking kung fu tea, approximately need water temperature to keep about 95 ℃ in 20 minutes always, should not repeatedly heat again, boil and change " fresh " of water.But electric heater of the prior art does not have heat insulation function mostly, perhaps, although have certain heat insulation function, has unreasonable structure, the poor shortcoming of heat insulation effect, therefore, can not satisfy the daily life needs.And traditional device that is used for the boiling water insulation, such as 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, there is any one impaired its insulation effect just obviously to descend, roll also fast reducing of (opening) coolant-temperature gage, the glass inner flask is easy to again breakage.Therefore, these thermos flasks can not satisfy people's the needs of making tea, infuse coffee, brew milk powder, lotus root starch or bubble kung fu tea equally.
Summary of the invention
Purpose of the present invention, in order to address the above problem, a kind of vacuum heat insulation type electric kettle of long-acting thermal-insulating structure is provided, water in the kettle through boiled to 100 ℃ boiling water, this electric kettle can remain on required optimal temperature for a long time with water temperature, the boiling water temperature requirement of the high tealeaves such as Longjing tea, tippy tea can be satisfied, the boiling water temperature requirement when making coffee, rushing milk powder, lotus root starch or ordinary tea leaves can be satisfied again.
Purpose of the present invention can reach by following measure:
A kind of vacuum heat insulation type electric kettle of long-acting thermal-insulating structure comprises kettle body and pot lid, and its design feature is:
1) described 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 and inner bag close contact, between shell and inner bag, be provided with closed cavity, described closed cavity is evacuated, and forms the sealed vacuum thermal insulation layer between shell and inner bag; Consist of 80 ℃~95 ℃ vacuum type insulation constructions by inner bag and sealed vacuum thermal insulation layer;
2) electric heater comprises heater and thermal store, the heater of electric heater and inner bag close contact, thermal store be looped around heater around, thermal store is connected, forms the dispersion shape syndeton by some connectors with heater, in section connecting element, be provided with heat conduction tie point, closely be connected with inner bag by described heat conduction tie point, make thermal store and inner bag form the point-like syndeton.
Purpose of the present invention can also reach by following measure:
A kind of Technological improvement plan of the present invention is: thermal store is connected, forms the dispersion shape syndeton by six connectors with heater, respectively be provided with a heat conduction tie point in three connectors therein, closely be connected with inner bag by described 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: a temperature control circuit is set in the kettle body, the water temperature in the kettle body inner bag is controlled at 80 ℃, 82 ℃, 83 ℃, 85 ℃, 86 ℃, 88 ℃, 90 ℃, 92 ℃ or 95 ℃.
A kind of Technological improvement plan of the present invention is: form heat insulation cavity between the hot tank wall of described storage and the shell, establish foam layer in heat insulation cavity.Thereby greatly reduce the storage hot tank heat loss, the temperature remains within the normal range to make shell simultaneously.
A kind of Technological improvement plan of the present invention is: described 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; Described 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: be threaded connection between kettle body and the pot lid; 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: described 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 described shell is provided with handle.
The invention has the beneficial effects as follows:
1, the present invention is owing to being provided with sealed vacuum heat-insulation layer, 80 ℃~95 ℃ airtight vacuum formula insulation constructions of formation, therefore with boiled after 100 ℃, water temperature remains on required optimal temperature (temperature control temperature spot) always, needn't repeat power consumption heating boiling water, not only energy-conservation but also can avoid with the water heating for multiple times of making tea contribute trace element useful in the dehydration, " fresh " of the water that keeps making tea.Simultaneously, owing to having long-acting thermal-insulating structure, the characteristic of thermal store self-heat conserving, the heat energy of thermal store storage can only conduct tie point by heat and heat to inner bag, therefore, thermal store to inner bag and boiling water heating be slow and lasting, have the beneficial effect of long-acting thermal-insulating.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 trace element useful in the dehydration, " fresh " of the water that keeps making tea.
2, owing in the improvement technical scheme of the present invention, forming heat insulation cavity between the hot tank wall of described storage and the shell, in heat insulation cavity, establish foam layer.Thereby greatly reduce the heat loss of the hot tank of storage, strengthen 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, described 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; Described hasp plug hasp is covered water filling port on Hu Zui fully.Not only much cleaner, heat insulation effect is also better.
4, sealed vacuum heat-insulation layer used in the present invention and temperature control circuit structure, can design the energy-saving type heat-preserving insulating pot of Multiple Type, the user can select according to actual needs, water temperature can be remained on always 95 ℃ of temperature of required optimum as during drinking kung fu tea, rolling (opening) kettle, the again heating water that needn't consume energy, not only energy-conservation but also can avoid with the water heating for multiple times of making tea contribute trace element useful in the dehydration, " fresh " of the water that keeps making tea; When brewing Longjing tea, can regulate temperature control circuit, make electric kettle consist of the energy-saving type heat-preserving electric kettle of 85 ℃ of series; When brewing tippy tea, the temperature control that can regulate temperature control circuit is that 80 ℃, 82 ℃ or 84 ℃ are the most desirable; Rush coffee bubble coffee, when rushing milk powder or lotus root starch, the temperature control that can regulate temperature control circuit is 86~95 ℃.
Description of drawings
Fig. 1 is the structural representation of the specific embodiment of the invention 1.
Fig. 2 is the electric heater structure schematic diagram 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
The present invention is described in further detail below in conjunction with drawings and Examples:
Specific embodiment 1:
See figures.1.and.2, the present embodiment comprises kettle body 1 and pot lid 2, described 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 and inner bag 12 close contacts, be provided with closed cavity between shell 11 and inner bag 12, described closed cavity is evacuated, and forms sealed vacuum thermal insulation layer 15 between shell 11 and inner bag 12; Consist of 80 ℃~95 ℃ vacuum type insulation constructions by inner bag 12 and sealed vacuum thermal insulation layer 15; Electric heater 3 comprises heater 3-1 and thermal store 3-2, the heater 3-1 of electric heater 3 and inner bag 12 close contacts, thermal store 3-2 be looped around heater 3-1 around, thermal store 3-2 is connected, forms the dispersion shape syndeton by some connector 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 by described heat conduction tie point 4-5, both form the point-like syndeton to make thermal store 3-2 and inner bag 12.
Described 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; Described 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.
Be threaded connection between kettle body 1 and the pot lid 2; 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.Described shell 11 be shaped as truncated cone.
In the present embodiment:
One temperature control circuit is set in the kettle body, the water temperature in the kettle body inner bag 12 is controlled at 95 ℃, consist of the specialized teapot that brews kung fu tea.It is the stainless steel material of 0.2mm that inner bag 12 and shell 11 all adopt thickness.
Because the sealed vacuum insulation construction that the present embodiment adopts is brewing 95 ℃ of the required temperature of kung fu tea by temperature control circuit with the water-in-kettle temperature control, therefore, both 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 by 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 by described heat conduction tie point 3-4, both form the point-like syndeton to make thermal store 3-2 and inner bag 12.
The operation principle of the present embodiment is as follows:
Heater is in to the inner bag heating, also thermal store is heated, when being heated to water boiling (100 ℃), the heater stopped heating, this moment, thermal store also was warming up to 100 ℃, because inner bag and boiling water drop in temperature wherein are very fast, so thermal store continues inner bag is heated by 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 by heat and heat to inner bag, therefore, thermal store to inner bag and 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 also can avoid with the water heating for multiple times of making tea contribute trace element useful in the dehydration, " fresh " of the water that keeps making tea.
In addition, can design the vacuum heat insulation type electric kettle with long-acting thermal-insulating structure of Multiple Type with reference to the present embodiment, the user can select according to actual needs, water temperature can be remained on always 95 ℃ of temperature of required optimum as during drinking kung fu tea, rolling (opening) kettle, the again heating water that needn't consume energy, " fresh " of not only energy-conservation but also can avoid trace element useful in the water heating for multiple times loss water of making tea, the water that keeps making tea; When brewing Longjing tea, can regulate temperature control circuit, make electric kettle consist of the vacuum heat insulation type electric kettle with long-acting thermal-insulating structure of 85 ℃ of series; When brewing tippy tea, the temperature control that can regulate temperature control circuit is that 80 ℃, 82 ℃ or 84 ℃ are the most desirable; Rush coffee bubble coffee, when rushing milk powder or lotus root starch, the temperature control that can regulate temperature control circuit is 86~95 ℃.
The described vacuum heat insulation type electric kettle with long-acting thermal-insulating structure of the present embodiment adopts following specifications and models:
The vacuum heat insulation type electric kettle size table with long-acting thermal-insulating structure that table one is not with handles
Specific embodiment 2:
With reference to Fig. 3, the characteristics of the present embodiment are:
Between the outer wall of sealed vacuum thermal insulation layer 15 and shell 11, form heat insulation cavity, in this heat insulation cavity, establish foam layer 14.Thereby greatly reduce the heat loss of inner bag, 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 the present embodiment are:
The characteristics of the present embodiment are: the sidewall at described shell 11 is provided with handle 25.Other are identical with specific embodiment 2.
The described vacuum heat insulation type electric kettle with long-acting thermal-insulating structure of the present embodiment adopts following specifications and models:
The vacuum heat insulation type electric kettle size table with long-acting thermal-insulating structure that table two is with handles
Specific embodiment 4:
The characteristics of the 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 namely 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 the present embodiment 5 are:
With reference to Fig. 5, the present invention can also make the heat-storage heat-preserving formula electric heating kettle with long-acting thermal-insulating structure, namely comprises pot body 5 and the pot cover 6 of electric heating kettle, is provided with the water filling port 61 that is communicated with the inner chamber of inner bag 62 at pot cover 6; The sidewall that is positioned at water filling port 61 left sides on the pot cover 6 stretches out, forms pot mouth 62; The roof that is positioned at water filling port 61 right sides at pot cover 6 is provided with hasp plug 63; Described hasp plug 63 hasps are covered water filling port 61 on pot mouth 62 fully.Pot body 5 is provided with carrying handle 4.
Remaining insulation construction is identical with specific embodiment 1 to 4 with the long-acting thermal-insulating principle.
Other embodiment:
The shape of described shell 11 can be square, polygonal cylindricality, cydariform or other shapes.The temperature control of described temperature control circuit is 80 ℃, 82 ℃, 83 ℃, 85 ℃, 86 ℃, 88 ℃, 90 ℃, 92 ℃ or 94 ℃.
The thin stainless steel material of kettle body and function of kettle is made, 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 above; only be the better specific embodiment of the present invention; but protection scope of the present invention is not limited to this; anyly be familiar with those skilled in the art in the scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all belonged to protection scope of the present invention.
Claims (7)
1. the vacuum heat insulation type electric kettle of a long-acting thermal-insulating structure comprises kettle body (1) and pot lid (2), it is characterized in that:
1) described 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) and inner bag (12) close contact, between shell (11) and inner bag (12), be provided with closed cavity, described closed cavity is evacuated, and forms sealed vacuum thermal insulation layer (15) between shell (11) and inner bag (12); Consist of 80 ℃~95 ℃ vacuum type insulation constructions by inner bag (12) and sealed vacuum thermal insulation layer (15);
2) described electric heater (3) comprises heater (3-1) and thermal store (3-2), the heater (3-1) of electric heater (3) and inner bag (12) close contact, thermal store (3-2) be looped around heater (3-1) around, thermal store (3-2) is connected with heater (3-1) by some connectors (3-3), form the dispersion shape syndeton, in section connecting element (3-3), be provided with heat conduction tie point (3-4), closely be connected with inner bag (12) by described heat conduction tie point (4-5), both form the point-like syndeton to make thermal store (3-2) and inner bag (12).
2. the vacuum heat insulation type electric kettle of a kind of long-acting thermal-insulating structure according to claim 1 is characterized in that: between the outer wall of inner bag (12) and shell (11) inwall heat insulation cavity is set, establishes foam layer (14) in this heat insulation cavity.
3. the vacuum heat insulation type electric kettle of a kind of long-acting thermal-insulating structure according to claim 1 and 2, it is characterized in that: thermal store (3-2) is connected, forms the dispersion shape syndeton by six connectors (3-3) with heater (3-1), respectively be provided with therein a heat conduction tie point (3-4) in three connectors (3-3), closely be connected with inner bag (12) by described heat conduction tie point (3-4), both form the point-like syndeton to make thermal store (3-2) and inner bag (12).
4. the vacuum heat insulation type electric kettle of a kind of long-acting thermal-insulating structure according to claim 3, it is characterized in that: described main body is the kettle body (1) of electric kettle, described lid is the pot lid (2) of electric kettle, is provided with the water filling port (21) that is communicated with the inner chamber of inner bag (12) at pot lid (2); The sidewall that is positioned at water filling port (21) left side on the pot lid (2) stretches out, forms Hu Zui (22); The roof that is positioned at water filling port (21) right side at pot lid (2) is provided with hasp plug (23); Described hasp plug (23) hasp is covered water filling port (21) on Hu Zui (22) fully.
5. the vacuum heat insulation type electric kettle of a kind of long-acting thermal-insulating structure according to claim 4, it is characterized in that: kettle body (1) is connected with pot lid (2) by 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).
6. the vacuum heat insulation type electric kettle of a kind of long-acting thermal-insulating structure according to claim 4 is characterized in that: described kettle body (1) be shaped as truncated cone, square, polygonal cylindricality or cydariform.
7. the vacuum heat insulation type electric kettle of a kind of long-acting thermal-insulating structure according to claim 4, it is characterized in that: the sidewall at described shell (11) is provided with handle (25).
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Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1223838A (en) * | 1998-01-23 | 1999-07-28 | 孔雀株式会社 | Thermally insulated bottles and the like |
CN2471259Y (en) * | 2001-02-10 | 2002-01-16 | 张丽霞 | Energy saving reboiling structure for vacuum flask pot |
CN201015538Y (en) * | 2006-12-31 | 2008-02-06 | 杨源兴 | Vacuum electric-heating kettle |
CN201977558U (en) * | 2011-01-20 | 2011-09-21 | 佛山市顺德区建丰行贸易有限公司 | Double-layered heat insulated vessel used in electric heating water kettle |
WO2012016344A2 (en) * | 2011-10-04 | 2012-02-09 | Pi-Design Ag | Double-walled liquid container |
CN102429577A (en) * | 2011-10-30 | 2012-05-02 | 徐国元 | Electric heating heat-insulation kettle for vehicle |
-
2012
- 2012-07-23 CN CN201210256432.XA patent/CN102846197B/en active Active
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN1223838A (en) * | 1998-01-23 | 1999-07-28 | 孔雀株式会社 | Thermally insulated bottles and the like |
CN2471259Y (en) * | 2001-02-10 | 2002-01-16 | 张丽霞 | Energy saving reboiling structure for vacuum flask pot |
CN201015538Y (en) * | 2006-12-31 | 2008-02-06 | 杨源兴 | Vacuum electric-heating kettle |
CN201977558U (en) * | 2011-01-20 | 2011-09-21 | 佛山市顺德区建丰行贸易有限公司 | Double-layered heat insulated vessel used in electric heating water kettle |
WO2012016344A2 (en) * | 2011-10-04 | 2012-02-09 | Pi-Design Ag | Double-walled liquid container |
CN102429577A (en) * | 2011-10-30 | 2012-05-02 | 徐国元 | Electric heating heat-insulation kettle for vehicle |
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