CN202801218U

CN202801218U - Vacuum heat preservation type anti-dry burning electric kettle with long-acting thermal insulation structure capable of being out of water from top portion

Info

Publication number: CN202801218U
Application number: CN 201220515485
Authority: CN
Inventors: 余鸿; 李炀; 付海明
Original assignee: 余鸿
Priority date: 2012-10-09
Filing date: 2012-10-09
Publication date: 2013-03-20
Anticipated expiration: 2022-10-09

Abstract

The utility model discloses a vacuum heat preservation type anti-dry burning electric kettle with a long-acting thermal insulation structure capable of being out of water from the top portion. A kettle body is connected with the kettle cover through threads. A water outlet is arranged in the top portion of the kettle cover. The kettle body is composed of an outer shell and a liner. A vacuum layer is arranged between the outer shell and the liner. An insulating layer is arranged between the vacuum layer and the outer shell. An electric heater unit comprises a heater, a heat accumulation body and an anti-dry burning temperature controller. The anti-dry burning temperature controller is normally closed and connected with a return circuit of the heater in series. The heater directly contacts with the liner. The heat accumulation body surrounds the periphery of the heater. The heat accumulation body is connected with the heater through connecting parts. Heat conduction connecting points are arranged in the connecting parts. The heat accumulation body is tightly connected with the liner through the heat conduction connecting points. By long-acting preserving heat by the heat accumulation body of phase changing heat accumulation materials, the heat preservation function is achieved through the heat preservation layer and the vacuum layer, and the outer surface temperature of the kettle body is simultaneously guaranteed to be at the normal temperature and the safety of an electric kettle in everyday use is guaranteed through the anti-dry burning temperature controller.

Description

The vacuum heat insulation type anti-dry insulating pot with long-acting thermal-insulating structure of top water outlet

Technical field

The utility model relates to a kind of domestic electric heating kettle.

Background technology

It is the most frequently used one of instrument of heating up water in people's daily life that electric kettle has become, and it has quick, smokeless and odorless to boil water, the advantage of hygienic environment-protecting.But electric kettle of the prior art does not have the unreasonable structure of heat insulation function or heat insulation function, heat insulation effect poor mostly; Perhaps adopting the mode of insulation then is that electric kettle is placed on the power supply chassis always, very inconvenient.Heat insulation effect is bad even do not have the electric kettle of heat insulation function just can not satisfy the demand.Because rhythm of life is nervous, people often forget and oneself heat up water, if water is dryouied, cause easily fire.

The utility model content

The purpose of this utility model provides a kind of that can be incubated and with the electric kettle of burning prevention function.

The utility model is by the following technical solutions:

The vacuum heat insulation type anti-dry insulating pot with long-acting thermal-insulating structure of a kind of top water outlet comprises kettle body 1, and kettle body bottom is provided with electric heater unit 3, and kettle body 1 is connected with pot lid 2 by screw thread, and the junction is provided with sealing ring 24; Be provided with delivery port 21 at described pot lid top, water outlet is provided with capping 22; Described kettle body 1 is by shell 11 and place the inner bag 12 in the shell to form, and is provided with vacuum layer 15 between described shell 11 and inner bag 12, and described vacuum layer is the closed cavity that is evacuated; Filled and process insulation material between described vacuum layer 15 and shell 11 forms heat-insulation layer 14; Described electric heater unit 3 comprises heater 31, thermal store 32 and anti-dry heating temperature controller 30, and described anti-dry heating temperature controller is closed type and is connected in the loop of described heater that described heater directly contacts with inner bag 12; Described heater around around thermal store 32, described thermal store 32 is connected with heater 31 by many connectors 33 and forms the dispersion shape syndeton, in section connecting element 33, be provided with heat conduction tie point 34, described thermal store 32 closely is connected with inner bag 12 by described heat conduction tie point, makes thermal store and inner bag form the point-like syndeton; The phase transition temperature of described thermal store is 80-100 ℃.

Thermal store 32 is connected, forms the dispersion shape syndeton by six connectors 33 with heater 31, respectively be provided with a heat conduction tie point 34 in three connectors 33 therein, closely be connected with inner bag 12 by described heat conduction tie point 34, both form the point-like syndeton to make thermal store 32 and inner bag 12.

Described kettle body 1 is provided with sealing ring 24 with the junction of pot lid 2.

The utility model adopts the thermal store of phase-change heat-storage material, and is different by the phase transition temperature of phase-change heat-storage material, can make the long-acting thermal-insulating kettle of various different temperatures; Guarantee when playing insulation effect by heat-insulation layer and vacuum layer that the external table temperature of kettle is normal temperature, the convenient use can not scalded the user; Guarantee the security of electric kettle in routine use by anti-dry heating temperature controller, avoided fire; The kettle top sets out the mouth of a river, has save Hu Zui, makes kettle structure simple, is easy to processing.

Description of drawings

Fig. 1 is structural representation of the present utility model;

Fig. 2 is the structural representation of heater of the present utility model and thermal store;

Fig. 3 is heater of the present utility model and anti-dry heating temperature controller wiring diagram.

The specific embodiment

As shown in Figure 1, the vacuum heat insulation type anti-dry electric kettle with long-acting thermal-insulating structure of a kind of top water outlet comprises kettle body 1, pot lid 2, and kettle body 1 is connected with pot lid 2 by screw thread, inner bag 12 opening parts at kettle body 1 are provided with internal thread, are provided with external screw thread in the lower end of pot lid 2; Be provided with delivery port 21 at described pot lid top, water outlet is provided with capping 22.Handle 25 is set on the kettle body, and handle is positioned at the offside of delivery port 21.Between described kettle body 1 and the pot lid 2 sealing ring 24 is set.By setting out the mouth of a river at the kettle top, make kettle structure simple, be easy to processing; Be provided with capping 22 at water outlet 21, much cleaner, heat insulation effect is also better.

Such as Fig. 1, described kettle body 1 is comprised of shell 11 and inner bag 12, is provided with vacuum layer 15 between described shell 11 and inner bag 12, and described vacuum layer is the closed cavity that is evacuated.Filled and process insulation material between described vacuum layer 15 and shell 11 forms heat-insulation layer 14.Vacuum layer and heat-insulation layer can effectively be incubated, and have guaranteed that simultaneously the kettle body case is normal temperature, and the protection user can not be burned.

Kettle body bottom is provided with electric heater unit 3, and described electric heater unit 3 comprises heater 31, thermal store 32 and anti-dry heating temperature controller 30, and described heater directly contacts with inner bag 12.

Such as Fig. 2, described heater around around thermal store 32, described thermal store 32 is connected with heater 31 by six connectors 33 and forms the dispersion shape syndeton, in three connectors 33, respectively be provided with heat conduction tie point 34, described thermal store 32 closely is connected with inner bag 12 by described heat conduction tie point, makes thermal store and inner bag form the point-like syndeton.Heater 31 also heats thermal store 32 in to inner bag 12 heating, when the water boiling in being heated to inner bag is 100 ℃ of water temperatures, and heater 31 stopped heatings, this moment, thermal store also was warming up to 100 ℃.Because inner bag and boiling water drop in temperature wherein are very fast, thermal store continues inner bag is heated by heat conduction tie point 34.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 the 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 the phase transformation temperature points that required optimal temperature is thermal store always.

Difference according to required water temperature, select the thermal store of different phase transformation temperature pointses to make the long-acting thermal-insulating formula electric kettle of different functions, for example, kung fu tea need to be near boiled water temperature, then use phase transition temperature to be 95-100 ℃ phase-change heat-storage material, guarantee that the water temperature in the electric kettle is constant in 95-100 ℃; When brewing Longjing tea, select used 85 ℃ of left and right sides phase transition temperature materials electric kettle; When brewing tippy tea, can select 80 ℃～85 ℃ of phase transition temperature materials electric kettle; Make coffee or rush milk powder, lotus root starch etc., usually select 85～95 ℃ of phase transition temperature materials electric kettle.Adopt thermal store to realize long-acting thermal-insulating, liberated simultaneously the position of electric kettle, needn't electric kettle be placed on the power supply chassis always.

Such as Fig. 3, described anti-dry heating temperature controller is closed type and is connected in the loop of described heater that described heater 31 directly contacts with inner bag 12.If the boiling water cut-off switch of electric kettle damages, water-in-kettle can dryout always, and this moment, the closed type anti-dry heating temperature controller can be because crossing thermal cutoff, and with the loop open circuit of heater, stopped heating is avoided dry combustion method initiation fire accident.

Claims

1. the vacuum heat insulation type anti-dry insulating pot with long-acting thermal-insulating structure of a top water outlet, comprise kettle body (1), kettle body bottom is provided with electric heater unit (3), it is characterized in that, kettle body (1) is connected with pot lid (2) by screw thread, and the junction is provided with sealing ring (24); Be provided with delivery port (21) at described pot lid top, water outlet is provided with capping (22); Described kettle body (1) is by shell (11) and place the inner bag (12) in the shell to form, and is provided with vacuum layer (15) between described shell (11) and inner bag (12), and described vacuum layer is the closed cavity that is evacuated; Filled and process insulation material between described vacuum layer (15) and shell (11) forms heat-insulation layer (14); Described electric heater unit (3) comprises heater (31), thermal store (32) and anti-dry heating temperature controller (30), described anti-dry heating temperature controller is closed type and is connected in the loop of described heater that described heater directly contacts with inner bag (12); Described heater around around thermal store (32), described thermal store (32) is connected with heater (31) by many connectors (33) and forms the dispersion shape syndeton, in section connecting element (33), be provided with heat conduction tie point (34), described thermal store (32) closely is connected with inner bag (12) by described heat conduction tie point, makes thermal store and inner bag form the point-like syndeton; The phase transition temperature of described thermal store is 80-100 ℃.

2. the vacuum heat insulation type anti-dry insulating pot with long-acting thermal-insulating structure of a kind of top water outlet according to claim 1, it is characterized in that, thermal store (32) is connected, forms the dispersion shape syndeton by six connectors (33) with heater (31), respectively be provided with therein a heat conduction tie point (34) in three connectors (33), closely be connected with inner bag (12) by described heat conduction tie point (34), both form the point-like syndeton to make thermal store (32) and inner bag (12).

3. the vacuum heat insulation type anti-dry insulating pot with long-acting thermal-insulating structure of a kind of top water outlet according to claim 1 is characterized in that, described kettle body (1) is provided with sealing ring (24) with the junction of pot lid (2).