CN2150722Y - Heat-insulating spraying oven - Google Patents

Abstract

The utility model relates to a heat-insulating spraying oven, comprising an oven basin body, a shell, a motor support, a space plastic cover, a motor, a thermostat, a timer, a heat dispersing blade, a centrifugal blade, and a heat-generating pipe. The interior of the connecting position of the motor support and the space plastic cover is provided with a heat isolation device comprising a heat-generating pipe support, a heat insulation layer and a reflecting plate. A protective cover provided with circulating vents is matched, and strong circulating heat air flow can be generated in the oven basin body. The temperature difference of a cold and a hot air cavities on the upper part and the lower part of the heat isolation device can reach 150 DEG C. The spraying oven has the advantages of high heat efficiency, less heat loss, uniform food heating, high food roasting speed, etc., and is a roasting oven having time saving, high efficiency and energy saving.

Description

Heat-insulating spraying oven

The utility model relates to the electric heating roasting apparatus of cooking a meal, particularly a kind of heat-insulating type spraying oven.

Chinese patent CN2081206U discloses a kind of spiral-flow type electric wave stove.Be provided with the tempered glass bell above the stove basin, handle, shell, supply socket, motor, timer, thermosistor are equipped with in tempered glass bell top and inside.Shell has passage.Cold wind wheel, hot blast wheel are housed on the motor output shaft, are equipped with between the hot and cold wind wheel and are used to separate hot and cold distinguished and admirable pallet, its below is fixed with electrothermal tube and protective cover successively, to produce circulating hot blast eddy flow in the stove box.Take turns blow out hot and cold distinguished and admirable because the effect of above-mentioned pallet is just separated from cold wind wheel and hot blast, do not have heat-blocking action.In fact, from the practical structures of the patented product as can be known, this pallet is to be made by metal material, has good heat-conducting.By this pallet, the heat of hot blast stream passes to the cold wind stream on pallet top in a large number, make its temperature rise to a higher numerical value, the relative minimizing of the temperature difference of causing cold wind stream and hot blast to flow, one, the normal operation of motor is brought harmful effect, two, time that cooking food is required and heat must increase, can not say so a high efficiency and energy-conservation electric-heating cooking utensil.

The purpose of this utility model is to propose a kind of heat-insulating type spraying oven in order to overcome above-mentioned weak point, between heat radiation fan blade set on the motor output shaft and centrifugation blade, heat-proof device is housed, make the cold wind stream that is positioned at this device upper and lower reach the very high temperature difference with hot blast stream, simultaneously, in the stove basin, form powerful injection hot blast stream.

The utility model is achieved in that a kind of heat-insulating type spraying oven, comprise stove basin body, the space plastic jacket, motor bearing, shell, motor is housed in the shell, timer, heat radiation fan blade and centrifugation blade are housed on motor output shaft, be provided with heat-generating pipe and temperature controller in the centrifugation blade periphery, protective cover is equipped with in its below, in motor bearing and space plastic jacket junction, be equipped with and support by heat-generating pipe, thermal insulation layer, the heat-proof device that constitutes with the reflecting plate on anti-limit, the heat-generating pipe supporting upwards is connected with motor bearing, reflecting plate is covering centrifugation blade and heat-generating pipe downwards, between heat-generating pipe supporting and the reflecting plate thermal insulation layer is housed.

Anti-limit and the reflecting plate plane α that has angle around the described reflecting plate, its scope is α=100 °-130 ° of angles.There is the circulation pore protective cover middle part.The space plastic jacket is buckled on the button bit of heat-generating pipe supporting by mutual button.Insulating layer material between heat-generating pipe supporting and the reflecting plate is a mica sheet.

Hot and cold distinguished and admirable by the heat-proof device that heat-generating pipe supporting, heat insulation layer, reflecting plate constitute except that separating, form outside cold wind chamber and the hot blast chamber, more important role is to make the temperature in hot and cold wind chamber to differ greatly, thereby motor is worked under lower temperature environments, the heat loss in hot blast chamber is few, shorten the cooking food time, reached efficient, energy-conservation effect.

Because 100 ° of-130 ° of angles are adopted in anti-limit and reflecting plate plane included angle around the reflecting plate, its below is equipped with the protective cover of band circulation pore again, the powerful hot blast that centrifugation blade and heat-generating pipe produced by rotation is at a high speed flowed, flow to its bottom from pot body both sides, form the convection current hot blast, to food bottom and both sides baking.And the reflecting surface of reflecting plate adopts the best bright finish surface, the heat energy that heat-generating pipe produces directly can be radiated to food top, thereby obtains heating equably around making food.

The space plastic jacket is to adopt the thermostable transparent plastics to make, and makes the operator can observe food heating process in the stove at any time.The space plastic jacket is the connected mode that adopts the button bit make-up with being connected of heat-generating pipe supporting.Have on the cylindrical wall of heat-generating pipe supporting projection "

" the type button bit, the mutual button bit of "-" type of projection is arranged on the space plastic jacket top circumference limit, but mutual button bit is aimed at button bit and rotated a just fastening of angle.If need unload the space plastic jacket, then opposite spin gets final product.This kind structure is brought great convenience to cleaning the space plastic jacket.

The utility model is owing to adopted heat-proof device, make the temperature difference in cold wind chamber and hot blast chamber reach 150 ℃, in the hot blast chamber, can form powerful hot air convection, thereby, have thermal efficiency height, thermal loss few, to the food homogeneous heating, bake advantages such as food speed is fast, real for a kind ofly save time, efficient, energy-conservation baking stove and accessory.

Fig. 1 is the utility model structural representation;

Fig. 2 is the local amplification view in E shown in Figure 1 place;

Fig. 3 is the vertical view of protective cover shown in Figure 1.

By following embodiment the utility model is further elaborated.

With reference to shown in Figure 1, motor bearing (21) is horizontally fixed on shell (18) bottom by screw, and motor (19) is fastened on motor bearing (21) center upper portion position.Motor (19) output shaft is passed down through motor bearing (21), and successively heat radiation fan blade (8), centrifugation blade (14) is housed on its axle.Timer (6) is contained in motor bearing (21) top, and timer adjusting knob (4), temperature controller adjusting knob (5) and indicator lamp (2,3) are contained in shell (18) front.Shell (18) has louvre (20) all around.Heat-proof device is made of heat-generating pipe supporting (11), thermal insulation layer (23), reflecting plate (24), sees shown in Figure 2.Heat-generating pipe supporting (11) is positioned at motor bearing (21) below and fastening on it.Clamped thermal insulation layer (23) between heat-generating pipe supporting (11) and the reflecting plate (24), the insulating layer material of present embodiment is a mica sheet.Reflecting plate (24) is made by corrosion resistant plate highly polished, that reflecting effect is good, and the dark anti-limit (13) of 13mm is arranged all around, and angle α is taken as 115 ° of angles with reflecting plate plane (12).The heat-generating pipe (25) that is positioned at reflecting plate (24) below is outstanding tightly in heat-generating pipe supporting (11) by support column and screw.Centrifugation blade (14) is positioned at heat-generating pipe (25) inner chamber.Temperature controller (22) regulating shaft is by a cover link gear (7) and temperature controller adjusting knob (5) interlock.The protective cover (15) that is positioned at heat-generating pipe (25) below is outstanding tightly in heat-generating pipe supporting (11) by support column (28), screw.Protective cover (15) shape is seen shown in Figure 3, and central part has some circulation pores (27), and its outer shroud is a metal plate.Space plastic jacket (26) is connected to a fixed by the mode and the heat-generating pipe supporting (11) of button bit make-up.Stove basin body (16) is positioned at space plastic jacket (26) below.

The course of work of the utility model embodiment is as follows: will need baked goods to be placed on the food rack (17) of stove basin body (16) inner chamber, hand-held handle (1) covers bonnet on stove basin body (16).Connect external power, set up control temperature and heat time heating time, at this moment, green indicating lamp (2), yellow indicator lamp (3) are bright.The centrifugation blade (14) of rotation blows to stove basin body (16) sidewall with the heat that heat-generating pipe (25) produces from A shown in Figure 1 at a high speed, enter stove basin body (16) bottom through the B place, reflux through the circulation pore (27) of protective cover (15), it is distinguished and admirable to form powerful cycling hot again.The distinguished and admirable food thermally equivalent all around that makes of this cycling hot reaches excellent cured effect.The angle α angle of reflecting plate (24) is chosen very important, and is bigger than normal if the α angle is chosen, and then hot blast fails to be convened for lack of a quorum directly to blow to space plastic jacket (26) and just enters stove basin body (16) bottom, and a part of heat just can be lost on the space plastic jacket (26).If it is less than normal that the α angle is chosen, then hot blast stream just the C from Fig. 1 enter stove basin body (16), its convection effects is not good enough, influences the uniformity that food heats.So present embodiment is chosen α=115 °, can obtain best convection effects.Temperature raises in stove, heat by food absorption after, from outward appearance to inner essence bake food gradually, can reach outer burnt in ripe effect.When furnace temperature is raised to the control temperature, temperature controller (22) action, green indicating lamp (2) goes out, and heat-generating pipe (25) is stopped power supply, the rotation but motor (19) still works on.When furnace temperature was lower than the control temperature, heat-generating pipe (25) work continued heating, reached automatic constant temperature baking purpose.When reaching the setting up time value, stove can be cut off the electricity supply automatically.Yellow, green indicating lamp (2,3) goes out, and finishes the cooking food operation.The heat-generating pipe of present embodiment (25) power is 1380W, is used for baking a chicken and needs about 20 minutes.Reach save time, power saving, high efficiency effect.

Claims (5)

1, a kind of heat-insulating type spraying oven, comprise stove basin body (16), space plastic jacket (26), motor bearing (21), shell (18), motor (19) is housed in the shell (18), timer (6), heat radiation fan blade (8) and centrifugation blade (14) are housed on motor (19) output shaft, be provided with heat-generating pipe (25) and temperature controller (22) in centrifugation blade (14) periphery, heat-generating pipe (25) below is provided with protective cover (15), it is characterized in that in motor bearing (21) and space plastic jacket (26) junction, being equipped with by heat-generating pipe supporting (11), thermal insulation layer (23), the heat-proof device that constitutes with the reflecting plate (24) on anti-limit, heat-generating pipe supporting (11) upwards is connected with motor bearing (21), reflecting plate (24) is covering centrifugation blade (14) and heat-generating pipe (25) downwards, between heat-generating pipe supporting (11) and the reflecting plate (24) thermal insulation layer (23) is housed.

2, heat-insulating type spraying oven according to claim 1, it is characterized in that described reflecting plate (24) around anti-limit (13) and reflecting plate plane (12) α that has angle, its scope is α=100 °-130 ° of angles.

3, heat-insulating type spraying oven according to claim 1 is characterized in that there is circulation pore (27) protective cover (15) middle part.

4, heat-insulating type spraying oven according to claim 1 is characterized in that space plastic jacket (26) is buckled on the button bit (10) of heat-generating pipe supporting (11) by mutual button (9).

5, heat-insulating type spraying oven according to claim 1 is characterized in that described thermal insulation layer (23) material is a mica sheet.

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