CN2222315Y - Electric heating vehicle ticket holder capable of heating lunch box - Google Patents

Abstract

The utility model relates to a micro electric heating vehicle ticket holder which can heat lunch boxes, being an electric heating apparatus. In the utility model, a casing 1, a micro electric heating plate 2, a steel wire chuck 3 with a with spring, and a micro electric heating plate 2 are inlaid on the lower part of the casing; the middle layer of the micro electric heating plate is a DZR element 8 which is coated by an insulating layer 6. The periphery of the insulating layer 6 is fully coated by metal foil paper. The upper part of the exterior of the metal foil paper is coated by a rustless metal wrapper 4 and a rustless metal bottom wrapper 5. The utility model has the advantages of simple structure, light weight, small size, and convenient operation. The utility model is suitable for various vehicles such as gasoline cars, diesel cars, and trains, direct current power supply of 12 voltages, 24 voltages, and 36 voltages, commercial power of 110 voltages and 220 voltages, and is convenient to heat the meal and soup in lunch boxes.

Description

Can make automobile-used little electric heating ticket-holder of lunch box Electric heating seat

The utility model belongs to electric heating conversion field, is a kind of electric heater unit.

Using on the public transit vehicle of battery power, winter, the ticket seller was because of wanting ticketing and collect money, kill the hostage and can not wear gloves, cold but also inconvenient not only, and while public transport personnel will be able to eat hot rice and dish with car winter, and this is a long-standing problem always.Its reason is that heating is difficult to solve under the high-power prerequisite under low-tension supply, can obtain light, thin, skilful, little shape again.As everyone knows, heater power P=U ²÷ R, R=ρ * l ÷ S, i.e. P=U ²(P represents power to * S ÷ ρ ÷ l in the formula, the U representative voltage, ρ represents constant, S represents the heating wire sectional area, l represents heating wire length), civil power (220v) power supply can realize doing the electric heat source of metal electric heating lunch box if will keep power P when automobile-used battery power 12v powers, if ρ and l are constant, and 336 times ((220 ÷ 12) when then S must be extended to city's electricity condition ²), even shorten l and select the very little noble metal heating wire of ρ for use, S still will expand many times, thereby the inevitable stupid again massiveness of the electric heater of making, no practicality.In recent years Japan uses the PTC heating to make automobile-used electric heater, and volume has been lightly, but because PTC starting current big (variation can reach 100,000 times), storage battery is had destructiveness and influences other vehicular electrical appliance operate as normal and fail to promote.

The purpose of this utility model is a kind of high-power automobile-used little electric heating ticket-holder of making the lunch box Electric heating seat that uses little heating of design.

The utility model can be made automobile-used little electric heating ticket-holder of lunch box Electric heating seat, steel wire chuck 3 by housing 1, micro-electric hot plate 2, band spring, micro-electric hot plate 2 is embedded in lower part of frame, the middle level of micro-electric hot plate 2 is a DZR element 8, expire metal-clad paper 7 around outsourcing insulation 6, the insulating barrier 6, top, metal foil paper outside encases with rustless metal foreskin 4 and rustless metal bag end skin 5.DZR element 8 in the micro-electric hot plate 2 ties up to the uniform Electric radiant Heating Film of growing on the artificial lens mica paper and makes, and 9,10,11 all represent electric field electrode, the silver-plated metal weld tabs of 12 expressions, the warm element of 13 expression limits, 14,16,17,18 all is electrode plugs, the 15th, and toggle switch, and be equipped with two connector assemblies.

The utility model has the advantages that solving public transit vehicle freezes hand when the winter ticketing, convenient simultaneously the utility model is simple in structure, and is in light weight with the car hot meal, and volume is little, and is easy to use.Be suitable for various vehicles, gasoline, diesel vehicle or train to 12v, 24v, 36v dc source, also can be applicable to civil power 110v or 220v, can heat meal, dish, soup in the lunch box equally easily.

Fig. 1 is a generalized section of the present utility model,

Fig. 2 is a vertical view of the present utility model,

Fig. 3 is the cutaway view of micro-electric hot plate,

Fig. 4 is a DZR element schematic diagram.

Further specify structure of the present utility model and operation principle below in conjunction with accompanying drawing. The housing 1 usefulness heat of this device Solidity plastics or bakelite mold pressing form, and wherein one side can fold up ticket, and another side is one and is slightly larger than the standard metal meal The METAL HEATING PROCESS face of box-like shape, 3 expressions are used for movable fixing stacked ticket, insulating barrier 6 usefulness with the steel wire chuck of spring 0.2～0.3mm mica paper or artificial lens mica paper, thermal conductance is good again for the energy heatproof, and metal foil paper 7 completely encases two-layer 6 All around or totally-enclosed two-layer 6, effect is exhausted water, no matter can make this device equal leakproof in any wet environment; DZR element 8 ties up on the artificial lens mica paper the uniform Electric radiant Heating Film of growth and makes, thickness between 0.14～0.2mm, This heating is the electric field exothermic material, but compare with heating wire its Chinese People's Anti-Japanese Military and Political College's electric current under low tension needn't be subjected to again S, L changes restriction, thus under low-voltage, realize relatively high power and still shape can realize light, thin, little, 9,10, 11 all represent electric field electrode, form with baking knot after the brushing of metallic conduction glue, and its resistance is minimum, silver-plated metal weld tabs 12 Be standard component, be fixed on the electrode with aluminium rivet, limit the limit temperature scope of warm element 13 between 100 °～160 ℃, its work With being to ensure the heat resistant plastice shell not because of overheated deformed damaged, this device has two connector assemblies, shape such as recorder mark Accurate socket, toggle switch 15 can make things convenient for respectively connection 14 and 15 or 16 and 15 paths.

Embodiment 1: during as automobile 12v dc source, with power line interpolation block contact 14 and 16 (toggle switch make 14 and 15 lead to), DZR element electrode 10 and 11 heating powers, rated power is P (between 10w～25w), be applicable to heating this moment, (join 15 and 16 if toggle switch is wrong at this moment, the DZR element is treated as and is opened circuit, and can not generate heat and also not have the possibility of damage.) with power line interpolation block contact 17 and 18, toggle switch UNICOM 14 and 15 o'clock, DZR element electrode 9 and 10 heating powers, rated power is 2P, toggle switch UNICOM 16 and 15 o'clock, DZR element electrode 9 and 10,9 and 11 equal heating powers, rated power are 4P; The prerequisite of above-mentioned duty is 9 and 10,9 equate with 11 pole span, the Electric radiant Heating Film distribution consistency degree is good on the element, the selecting method most convenient of the DZR element under this prerequisite, service life also the longest (can reach more than 10,000 hours), select the DZR element of different parameters for use, can obtain the product of different power P, 2P, 4P.Limit warm element 13 to be 2P or 4P usually in working order, the micro-electric hot plate temperature rise was just worked in surpassing 100 ℃～160 ℃ when this device was unloaded.

Embodiment 2: as 24v (diesel vehicle) or 36v (train) state down during work, as long as the DZR element of selected suitable parameters can be realized the work purpose that embodiment 1 is same, in case behind the selected component parameters this device can only be under the power supply that matches powered operation.

Embodiment 3: this device becomes the lunch box Electric heating seat that can conveniently switch use between two kinds of city's power supplys when using 110v or 220v mains supply, with power line interpolation block contact 14 and 16 (toggle switch make 14 logical) when connecting the 220v power supply and the power line interpolation block being contacted 17 and 18 ( toggle switch 16 and 15 leads to) connection 110v power supply with 15, micro-electric hot plate under two kinds of different electrical power has identical power, to heat meal, dish, the soup in the lunch box easily, the surperficial power p (w/cm of the DZR element when these two kinds of power supplys are worked down ²) also be the same, thus the switching technology of voltage is simple when the utility model is worked under civil power, long service life, hot good evenness.

Claims (2)

1, a kind of automobile-used little electric heating ticket-holder of making the lunch box Electric heating seat, it is characterized in that steel wire chuck 3 by housing 1, micro-electric hot plate 2, band spring, micro-electric hot plate 2 is embedded in lower part of frame, the middle level of micro-electric hot plate 2 is a DZR element 8, expire metal-clad paper 7 around outsourcing insulation 6, the insulating barrier 6, top, metal foil paper outside encases with rustless metal foreskin 4 and rustless metal bag end skin 5.

2, by the described little electric heating ticket-holder of claim 1, it is characterized in that DZR element 8 in the micro-electric hot plate 2 ties up on the artificial lens mica paper the uniform Electric radiant Heating Film of growth and makes, 9,10,11 all represent electric field electrode, the silver-plated metal weld tabs of 12 expressions, the warm element of 13 expression limits, 14,16,17,18 all is electrode plugs, the 15th, and toggle switch, and be equipped with two connector assemblies.

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