CN202919884U

CN202919884U - Fresh-keeping lunch-box

Info

Publication number: CN202919884U
Application number: CN201220449935.4U
Authority: CN
Inventors: 蔡培明
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-09-05
Filing date: 2012-09-05
Publication date: 2013-05-08
Anticipated expiration: 2022-09-05

Abstract

Disclosed is a fresh-keeping lunch-box. The fresh-keeping lunch-box is small size tableware which is capable of keeping fresh and preserving heat, heatable and convenient to use. The shape of the fresh-keeping lunch-box is similar to a small size laptop. The fresh-keeping lunch-box comprises an upper outer shell, a lower outer shell, a rice box, a vegetable box, a box cover, a tableware box, an electrothermal film, an electronic control circuit and the like, wherein the rice box is arranged on the electrothermal film, and the electronic control circuit is arranged on one side of the rice box. The rice box is made of stainless steel, the outer shells are made of non-toxic plastics, and gaps which are used for preserving heat are arranged among the rice box and the outer shells. A self-provided storage battery is used for proving power and is beneficial for utilization with no power source and utilization in a crowd. The heating efficiency reaches more than 99%, and a danger of electric shock is avoided. The rice box is automatically sealed with the box cover, and inner air is expelled or fresh-keeping air is injected, so that invasion and breeding of bacteria are effectively prevented, and fresh keeping is truly achieved. Logic control and a digital display circuit are adopted, so that the fresh-keeping lunch-box is under intelligent control and capable of displaying the temperature.

Description

Fresh-keeping boxed cassette

Technical field

The present invention is a kind of fresh-keeping, is incubated and can heats portable informal dinner lunch box, belongs to the small intelligent field of household appliances.

Background technology

Affected by working environment, some needs carry diet; In addition, consider from the safe diet angle, it is first-selected carrying diet.The early stage lunch box of widely applying is not incubated, and needs the external heat source heating; Though the existing lunch box that self-heating is arranged is city's electrical heating, and is both dangerous, is subjected to again the supply socket restricted number, can not colony or use away from civil power, furthermore electric heating element is resistance wire, heat inhomogeneously, easily generation is burnt a little.

Another some deficiency that carries diet is that the resting period can not be long, otherwise kinds of food soon spoil.Although have pass through the cooling (being so-called refrigeration), preserve food, be subjected to technical limitations can not make boxed cassette, and can not fundamentally solve the food spoilage problem.

Summary of the invention

For existing technology shortcoming, take full advantage of air thermal preservation; Be the basic reason that causes food spoilage according to air, temperature is the mechanism of external cause, and " fresh-keeping without air " of employing food contact-free air reaches " self-healing sealing " technology and reach the food fresh-keeping purpose; Storage battery power supply or automobile storage battery power supply are provided in use for oneself, drive heated by electrothermal film, realize using box lunch.

Embodiment:

the present invention is achieved by the following technical solutions: a kind of fresh-keeping boxed cassette, comprise lunch box, the dish box, lid, air valve, cutlery box, Electric radiant Heating Film, electric-controlled plate, battery, seal and upper shell lower casing, lunch box is placed on Electric radiant Heating Film, within the dish box is placed in lunch box, electric-controlled plate and battery are placed in the lunch box side, outsourcing is similar to the shell of laptop computer, divide large, in, small size three kinds of specifications, corresponding space is arranged between shell and lunch box, utilize air thermal preservation, and between shell and lunch box, there is seal the contact position, in the prevention space, air and outside air carry out the heat conduction.Adopt the self-healing sealing between lunch box and cover of the lunch box, after lunch box that the food of heat is packed into, along with the reduction of temperature, the seal self-expansion tightly seals lunch box and cover of the lunch box contact site, and the prevention outside air enters.

Fresh-keeping boxed cassette is absorbed air in box by air valve by evacuation, and the existing non-return effect of bleeding of its air valve has again airfree demonstration effect, and little air is to fresh-keeping degree in box, and the sphere on air valve is recessed.

Fresh-keeping boxed cassette adopts heated by electrothermal film, and joins unidirectional heat transfer warming plate, and the thermal efficiency is higher than more than 99%, and lunch box heating surface homogeneous heating, without hot focus.

Lunch box thickness is not more than 30 millimeters, and length and width are larger, is convenient to food and minimizing food thermal resistance in the large tracts of land heating box, is beneficial to the temperature uniformity of food, and is easy to carry.

Fresh-keeping boxed cassette adopts logic control and Digital Display Circuit, sets up chow on request the Based Intelligent Control temperature of heating on their own.

Fresh-keeping boxed cassette adopts provides battery or automobile storage battery power supply for oneself, not only safe but also be convenient to use away from power supply area and colony.

Fresh-keeping boxed cassette electric part all has sealing, prevents moisture content intrusion automatically controlled circuit.

Hollow seal bar in addition between lunch box and lunch box, in fill air, and port obturages, and fills air in assurance not leak; Air valve is housed on cover of the lunch box; Be furnished with hinge and snap close between lunch box and cover of the lunch box, lid is around hinge opening and closing, and snap close is used for pinning lid and lunch box.Snap close divides two kinds, and a kind of is interior kayser, and a kind of outer kayser is respectively used to interior exhaust and outer gas injection.During interior exhaust, the air expansive force strengthens in sealing strip, makes to contact tightlyer between lunch box and lid, simultaneously because atmospheric pressure is pressed on lid, makes that between lunch box and lid and sealing strip, sealing load strengthens, so form the self-healing sealing.Snap close this moment pressure-bearing locking pulling force hardly is so with bearing the less interior kayser of pressure, to reduce overall dimensions.During outer gas injection, lid bears the power of opening, and the snap close bearing tension is larger, therefore should use outer kayser.

For food contact-free air, adopt two kinds of methods.The one, outer insufflation is injected anti-oxidant and nontoxic fresh-keeping gas in lunch box, such as CO2, to get rid of the air in lunch box; The 2nd, interior degassing method extracts the air in lunch box.Two kinds of methods all need the air one-way flow, the effect of air valve is exactly mainly the check Air Flow, its installation method divides to be inverted and just to put two kinds, be inverted and be used for outer gas injection, guarantee fresh-keeping gas to inject and can not discharge, but the air in box forces sealing ring moment contraction due to injecting gas pressure, seals the moment inefficacy and discharges; Air valve is just being put for interior exhaust, guarantee that in box, gas can be drawn out of, and the outer gas of box can not enter.Another effect of air valve is the display box internal gas pressure, and after in box, gas was excluded, the air valve top spherical of just putting was recessed, and its recessed degree is determined by box air pressure.

Shell not only is used for containing, and is used for insulation.Leave certain keeping warmth space between shell and lunch box, but and shell open-part and sealing is all arranged with the lunch box contact site, prevent that extraneous air and keeping warmth space Air from carrying out heat transmission, have simultaneously anti-sealing or other liquid and invade effect in housing.

The Electric radiant Heating Film of heating use adopts advanced nonmetallic materials to make, and is furnished with unidirectional heat transfer warming plate, the lunch box capable of heating bottom, and uniform heat distribution can not form and burn a little.Suitable thickness (being not more than 30 millimeters), larger bottom surface makes the food temperature up and down in lunch box basically identical, integrates the thermal efficiency up to more than 99%, not only energy-conservation but also environmental protection.

Adopt logic control circuit (FPGA), after setting chow, heat voluntarily, and the automatic controlled thermostat temperature, realize intellectuality, digitlization.

Adopt advanced special lithium battery power supply, charging once is no less than 2 hours continuously service time, and charging times is as many as 1000 times.

The specific embodiment

Below in conjunction with accompanying drawing, the present invention is done to further illustrate.

As shown in Figure 1, fresh-keeping boxed cassette profile is as laptop computer, and cover housing 1 is placed on box shell 10 by hinge, and air valve 9 protrudes from cover housing 1, snap close 19 protrudes from the long side surface of box shell 10, and electric-controlled plate 15 and charge power supply socket 16 are placed in the little side of box shell 10; Accompanying drawing 2 is layout drawings of cutlery box 2, lunch box 7 and dish box 8, and cutlery box 2 is placed in lunch box 7 sides, and dish box 8 is placed in lunch box 7 inside, and dish box 8 has two kinds of arrangement forms, and is a kind of as shown in the accompanying drawing heavy line, in the middle of being placed in, is adapted to interior degassing method; A kind of as shown in double dot dash line, be placed in the side, be adapted to outer insufflation.

Shown in accompanying drawing 3, cutlery box 2 is automatically controlled space below, built-in pcb board and battery; Electric radiant Heating Film 12 is close to lunch box 7 and is placed on electric heating membrane insulated plate 11, and electric heating membrane insulated plate 11 is placed on box shell 10 inner bottom surfaces; Air valve 9 is placed in lid 5 middle parts, and can lean on self elasticity to form the space when gas injection or exhaust and between lid, and is then closed, Fig. 7 is the air valve profile, the thin hemisphere face display box internal gas pressure on its top, this hemisphere face depression when air pressure is low, depression just can finish exhaust fully; Fig. 8 is air valve inversion figure, is adapted to outer gas injection, and Fig. 9 is that air valve is just being put figure, is adapted to interior exhaust.On lunch box 7, the outer rim on the inner edge on edge edge on box shell 10 is combined, both between built-in sealing ring 4; The upper of lunch box 7 is equipped with sealing ring I 3 between the groove of outer rim and lid 5, envelope has air in this sealing ring, and its air pressure reduces and increases with external pressure, produces the self-healing sealing effectiveness.Fig. 5 is matching relationship (interface) figure between cover housing 1, sealing ring I 3, sealing ring II 4, cover of the lunch box 5, lunch box 7, box shell 10.Be pressed with sealing ring III 6 between cover housing 1 and cover of the lunch box 5, stop external water to grade and enter between cover housing 1 and cover of the lunch box 5.Be connected by mother-son mouth between electric-controlled plate 15 and box shell 10, stud with sealing ring IV 14 between both, Fig. 6 is electric-controlled plate 15, box shell 10, and fiting relation figure between sealing ring IV 14, electric-controlled plate 15 are equipped with charge power supply socket 16 and automatically controlled slabstone 17.By snap close 19 lockings, two kinds of locking modes are arranged after closing between cover housing 1 and box shell 10, a kind of is outer kayser locking, as Figure 11, is adapted to outer insufflation; Another kind is interior kayser locking, as Figure 12, is adapted to interior degassing method.Open snap close 19, open or close around hinge axis between cover housing 1 and box shell 10, Fig. 4 is its principle schematic.

The present invention is small and exquisite, is easy to carry, and the thermal efficiency is high, without mains-supplied, and good refreshing effect, real is dense population and field work personnel's indispensable good merchantable brand.

Description of drawings

Fig. 1 is profile axonometric drawing of the present invention;

Fig. 2 is the layout drawing of lunch box dish box and cutlery box;

Fig. 3 is that master of the present invention looks cutaway view;

Fig. 4 is that cutaway view is looked on a left side of the present invention;

Fig. 5 is lunch box and cover of the lunch box interface schema;

Fig. 6 is that electric-controlled plate coordinates figure with shell;

Fig. 7 is the air valve cutaway view;

Fig. 8 is air valve inversion figure;

Fig. 9 is that air valve is just being put figure;

Figure 10 is hinge;

Figure 11 is outer kayser figure;

Figure 12 is interior kayser figure.

Label title in figure is as follows:

1: cover housing; 2: cutlery box; 3: lunch box and cover of the lunch box sealing ring, be called for short the sealing ring I; 4: lunch box and body seal circle, be called for short the sealing ring II; 5: cover of the lunch box; 6: cover of the lunch box and body seal circle, be called for short the sealing ring III; 7: lunch box; 8: the dish box; 9 air valves; 10: the box shell; 11: electric heating membrane insulated plate; 12: Electric radiant Heating Film; 13: the Electric radiant Heating Film wire; 14: electric-controlled plate and body seal circle, be called for short the sealing ring IV; 15: electric-controlled plate; 16: the charge power supply socket; 17: electric-control board; 18: hinge axis; 19: snap close.

Claims

1. fresh-keeping boxed cassette, it is characterized in that: comprise lunch box, dish box, lid, air valve, cutlery box, Electric radiant Heating Film, electric-controlled plate, battery, seal and upper shell lower casing, lunch box is placed on Electric radiant Heating Film, within the dish box is placed in lunch box, electric-controlled plate and battery are placed in the lunch box side, outsourcing is similar to the shell of laptop computer, divide large, medium and small number three kinds of specifications, corresponding space is arranged between shell and lunch box, utilize air thermal preservation, and between shell and lunch box, there is seal the contact position, stops in the space air and outside air to carry out heat and conducts.

2. fresh-keeping boxed cassette according to claim 1, is characterized in that: adopt the self-healing sealing between lunch box and cover of the lunch box, after lunch box that the food of heat is packed into, reduction along with temperature, the seal self-expansion tightly seals lunch box and cover of the lunch box contact site, stops outside air to enter.

3. fresh-keeping boxed cassette according to claim 1, it is characterized in that: absorb air in box by air valve by evacuation, the existing non-return effect of bleeding of its air valve has again airfree demonstration effect, and little air is to fresh-keeping degree in box, and the sphere on air valve is recessed.

4. fresh-keeping boxed cassette according to claim 1 is characterized in that: adopt heated by electrothermal film, and join unidirectional heat transfer warming plate, the thermal efficiency is higher than more than 99%, and lunch box heating surface homogeneous heating, without hot focus.

5. fresh-keeping boxed cassette according to claim 1, it is characterized in that: lunch box thickness is not more than 30 millimeters, and length and width are larger, is convenient in the large tracts of land heating box food and reduces the food thermal resistance, is beneficial to the temperature uniformity of food, and is easy to carry.

6. fresh-keeping boxed cassette according to claim 1 is characterized in that: adopt logic control and Digital Display Circuit, set up on their own chow on request, the Based Intelligent Control temperature of heating.

7. fresh-keeping boxed cassette according to claim 1 is characterized in that: adopt and provide battery or automobile storage battery power supply for oneself, not only safety but also be convenient to use away from power supply area and colony.

8. fresh-keeping boxed cassette according to claim 1, it is characterized in that: electric part all has sealing, prevents that moisture content from invading automatically controlled circuit.