CN2256691Y

CN2256691Y - Dual-purpose thermos for electric heating and thermal insulation of water

Info

Publication number: CN2256691Y
Application number: CN 96210609
Authority: CN
Inventors: 张陶
Original assignee: Individual
Current assignee: Individual
Priority date: 1996-04-23
Filing date: 1996-04-23
Publication date: 1997-06-25
Anticipated expiration: 2006-04-23

Abstract

The utility model relates to a novel electric heat-insulting dual-purpose thermos bottle, which is used for heating boiled water, storing water and heat-insulating. The utility model adopts a stainless steel double-layer liner with the middle pumped into vacuum to carry out heat-insulating. An electric heating device adopts a pressure switch replacing a power switch and can automatically cut off the power supply to protect the safe operation of the thermos bottle when no water or little water exists in the bottle. The thermos bottle is provided with a water level indicator, which indicates water level according to the quantity of the water in the bottle and the pressure produced by the water rather than using a glass tube water level indicator. The utility model has the advantages of firmness, durability and beautiful appearance.

Description

Electric heating thermal insulation double-purpose thermos bottle

The utility model belongs to a kind of of electrical heat tracing device, particularly electric heating thermal insulation double-purpose thermos bottle.

At present, domestic and international existing thermos bottle is divided into two big classes: a class is to have only the ordinary thermos bottle (vacuum flask that comprises stainless steel) of storing hot water function, no matter be manual water outlet, manual pneumatic water outlet etc., they all are can only be incubated to heat, and only are equivalent to a container of storing hot water; Another kind of is the electrical heating vacuum flask, as Chinese utility model patent 88214703.X, 91226412.8 etc., they do inner bag with aluminium or stainless steel, the outside plastic casing that uses, middle heat-preservation cotton or the foamed plastics of filling, but its heat-insulating property is very poor, and just heating again belongs in fact and only heats not thermal-insulating type soon.

The purpose of this utility model is to overcome the defective of above-mentioned two big class thermos bottle and provide a kind of to heat the thermos bottle that can really be incubated.

The purpose of this utility model can reach by following measure: the inside and outside courage of the stainless steel that vacuumizes in the middle of adopting, and its vacuum flask can reach the heat insulation effect of ordinary thermos bottle fully; Heat the water in the bottle by electric heater unit the bottom, constant temperature adopts temperature-sensitive pairing gold plaque or thermistor etc. to make temperature-sensing element, heat when making the water-cooled in the bottle, be in keeping warm mode then, and when water temperature descends, heat again, then be in keeping warm mode again ... thereby realize that electric heating thermal insulation is difunctional.

Fig. 1. be a kind of typical overall construction drawing of the present utility model

Be further described below in conjunction with accompanying drawing:

A kind of typical structure of the utility model is made up of loam cake 1, bottle stopper 2, inner bag 3, outer courage 4, handle 5, end courage 6, mica sheet 7, thermostat element 8, heater strip 9, heater strip dish 10, heat-preservation cotton 11, pressing plate 12, temperature indicator 13, power-line plug 14, indicator lamp 15, pressure switch 16, dipperstick 17, spring 18, base 19 etc.

As shown in Figure 1, the madial wall of bottle is partly used instead by courage inside and outside circular inner bladder 3 and outer courage 4 stainless steels, vacuumizes the composition insulation construction in the middle of its inner bag 3 and the outer courage 4.End courage 6 is made up of individual layer stainless steel or double-layer stainless steel.

Use the heater of water in its heating bottle of courage at the bottom of the individual layer stainless steel can be placed in the bottle, also can be placed on outside the bottle.Be placed on and open two holes in the bottle on end courage 6, power line enters on the heater strip that is connected in the bottle (not drawing this structure the figure) from these two holes.It is such that heater is placed on its outer structure of bottle: the bottom of being close to end courage 6 is placed mica sheet 7, heater strip 9, heater strip dish 10, heat-preservation cotton 11 and pressing plate 12 in proper order.Place thermostat element 8 in the lower edge of end courage 6 and constitute bottle coolant-temperature gage control device, the bimetal leaf sweep that is being close to thermostat element 8 is laid temperature indicator 13.The bimetal leaf of its thermostat element 8 is crooked when the water in bottle temperature changes changes, and indicates the temperature of water in bottle thereby the pointer of drive temperature indicator 13 moves.Dipperstick 17 is formed by laying the water level indicator that is connected on spring 18 and the spring 18 between the lower edge of courage 4 outside and the base 19, because the pressure of how many generations of water in bottle varies in size, its spring 18 is subjected to compression in various degree, thereby the indication of dipperstick also changes, and the user need not resemble and the glass tube dipperstick is installed other water heater is just known what of water in bottle like this.

Between courage 4 and the base 19 pressure switch 16 is installed also outside, it replaces power switch commonly used, and after adding water in the bottle, pressure switch 16 is just connected power supply; And when its pressure switch 16 is with regard to deenergization when anhydrous (few water) in the bottle, this has just exempted the danger of anhydrous dry combustion method, disconnects power supply when promptly anhydrous (water less).

Fig. 2 is the bottom partial structurtes figure of double bottom courage type thermos bottle.Courage is slightly different at the bottom of it and the individual layer, and its end courage 6 is made up of double-layer stainless steel, in vacuumize, its outer layer segment adopts elastic alloy to make corrugated tube shape, does the time spent and can vertically shorten or extend being subjected to external force.Be placed with electromagnet 21 and control circuit board 20 in the bottom of pressing plate 12.

The temperature detector element 8 of double bottom gallbladder-heat water bottle bottom can use thermistor, and it is placed under the end courage internal layer, is drawn out to control circuit board 20 with lead by outer courage, receives electromagnet 21 by control circuit board 20 again.

Its operation principle is such: the effect by temperature detector element 8 after the heating of the water in the bottle makes electromagnet 21 produce suction, electromagnet 21 attracts pressing plates 12 and the skin of the end courage 6 that is attached thereto makes with internal layer and leaves, and guarantees that like this centre of end courage 6 has space (vacuum state) to play insulation effect; Disconnect heater strip 9 simultaneously, heater strip 9 is no longer heated.And when the water in bottle temperature dropped to a certain degree, temperature detector element 8 discharged electromagnet 21 by the effect of control circuit board 20, just closely contact of the ectonexine of end courage 6 like this; Meanwhile, connect the power supply of heater strip 9, make heater strip 9 energising heating, water in bottle is heated up.

Above-mentioned two kinds of structures can be covered the last layer plastic casing again in its outside, and cancellation handle 5, at this moment three indicator lamps of dipperstick and temperature indicator and various states etc. can be installed on the plastic casing.

Fig. 3, Fig. 4 are the utility model electrical schematic diagram.

Fig. 3 is the employed circuit of gallbladder-heat water bottle at the bottom of the individual layer, and AC power 220V (or 110V) is through pressure switch K ₁, the K switch on the thermostat element ₂Be connected to heater strip R.At pressure switch K ₁On be parallel with anhydrous (few water) alarm lamp L ₁, in K switch ₂On be parallel with thermostatical pilot lamp L ₂, on heater strip R, be parallel with burner on light L ₃

Fig. 4 circuit is that double bottom gallbladder-heat water bottle is employed.AC power 220V (or 110V) is through pressure switch K ₁Be connected to heater strip R with controllable silicon SCR, control circuit board D is connected in parallel on the controllable silicon SCR, by control circuit board D control magnet spool L.Thermistor R _TThe control end that is connected on controllable silicon SCR is with the conducting of control controllable silicon SCR or end.When the controllable silicon SCR conducting, heater strip R energising is heated water in the bottle, and by the action of control circuit board D control electromagnet, vice versa simultaneously.At pressure switch K ₁On be parallel with anhydrous (few water) alarm lamp L ₁, on controllable silicon SCR, be parallel with thermostatical pilot lamp L ₂, on heater strip R, be parallel with burner on light L ₃

The utility model compared with prior art has following advantage:

1. the stainless steel courage that vacuumizes in the employing bilayer, good heat insulating.

2. adopt pressure switch to replace power switch, switch automatic disconnection when anhydrous in the bottle (few water), Exempt the danger that burns out thermos bottle.

3. thermos bottle is inside and outside bright and clean smooth, firm and durable.

Claims

1. electric heating thermal insulation double-purpose thermos bottle, by inner bag 3, outer courage 4, end courage 6, heater strip 9, thermostat element 8, temperature indicator 13, pressure switch 16, dipperstick 17, indicator lamp 15 compositions such as grade, it is characterized in that: the sidewall sections of bottle is formed with circular stainless steel inner container 3 and outer courage 4, vacuumize the formation insulation construction in the middle of its inner bag 3 and the outer courage 4, end courage 6 usefulness individual layer stainless steels or double-layer stainless steel are formed, vacuumize in double-deck, pressure switch 16 is installed between courage 4 and the base 19 outside replaces power switch to use, dipperstick 17 and temperature indicator 13 also can be installed on bottle.

2. thermos bottle according to claim 1, it is characterized in that: vacuumize in the end courage 6 usefulness double-layer stainless steel systems, its outer layer segment adopts elastic alloy to make corrugated tube shape, do the time spent and can vertically shorten or extend being subjected to external force, be placed with electromagnet 21 and control circuit board 20 in the bottom of pressing plate 12.

3. thermos bottle according to claim 1 is characterized in that: dipperstick 17 is formed by laying the water level indicator that is connected on spring 18 and the spring 18 between the lower edge of courage 4 outside and the base.

4. thermos bottle according to claim 1 is characterized in that: except that heating and thermostatical pilot lamp are installed, anhydrous (few water) alarm indicator is installed also on the bottle.

5. thermos bottle according to claim 1 is characterized in that: can cover the last layer plastic casing again and cancel handle 5 in the outside of stainless steel courage, and dipperstick 17 and temperature indicator 13 and three status indicator lamps etc. are installed on the plastic casing.