CN1843277A

CN1843277A - Electronic oven provided with cooling system

Info

Publication number: CN1843277A
Application number: CN 200610050629
Authority: CN
Inventors: 徐剑光
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-04-28
Filing date: 2006-04-28
Publication date: 2006-10-11

Abstract

The invention relates to an electric oven with cooling system. It comprises a oven body, which is separated into upper and lower spaces by inner cover board, the lower space is space with high temperature to open door for high temperature zone, heater installed in inner wall and thermal insulating material installed around wall in high temperature zone; the upper space is equipped with a cooling fan, control element and control panel; the outer cover board above fan is equipped with air inlet, air channel cover board and inner cover board, all of which form into air channel; said air channel extends to top of door frame to introduce wind into the slot between inner and outer glass through upper guide board, and then the wind is discharged out from door bottom through lower guide board connected with inner glass bottom. The invention can cool control panel and control element, which guarantees life length of electric oven, and the whole surface and handle can be cooled in short time effectively for safe operation.

Description

The electric oven that has cooling system

Technical field

The present invention relates to a kind of equipment that is used for domestic food processing, particularly a kind of electric oven that has cooling system.

Background technology

Electric oven is a kind of food processing equipment for household commonly used, it is by the electric heating body of box house, come baked foods with high temperature, because whole baking box internal temperature can be up to 250～260 ℃, so may burn out appliance component when using, influence its service life and quality, moreover the user is scalded easily also because of carelessness.In order to prevent the generation of this class possibility accident, people imagine cooling structure of design, and the door of the control panel and the switching high temperature thermal treatment zone is cooled down.European patent NO.EPO330727 discloses a kind of food baking box, in this invention, the door design is made up of interior, domestic and abroad three layer flat plate glass, and air is introduced from the lower end in slit between plate glass and is discharged from the upper end in slit, thereby realizes the nature cooling purpose by free convection.Yet because hot-air is discharged by the small gap between flat board, cooling effectiveness is low.And free convection can not provide enough cooling effects, and the hot blast of discharge is directly towards the handle of door, so user's security is not ideal enough.And control panel is not well cooling also.Chinese patent CN200410063728.5 discloses a kind of " electric oven that has door cooling structure ", it and above-mentioned patent door are similar, under the forced convertion of cooling blower, air by the slit between outer and the middle level plate glass from bottom to top, by from top to bottom by the slit between middle level and the internal layer plate glass, pass through the bottom in high temperature chamber then, back and top, discharge by the upper end of door at last, natural air along baking box high-temperature region perisporium around one the circle, stroke is very long, the contact area of air and casing high-temperature region is excessive, causes the baking box heat to run off in a large number, complete machine energy consumption grade reduces.

Summary of the invention

The present invention is directed to the defective and the deficiency of above-mentioned prior art, for society provides a kind of simple in structure, electric oven that the thermal efficiency is high, safe and reliable.

The technical measures that the present invention for achieving the above object taked are: this has the electric oven of cooling system, include casing, inner cover plate is divided into casing, following two spaces, lower space is the high-temperature region, a door that is used to open and close the high-temperature region, be loaded on the heater of high-temperature region inwall, with the insulation material that is loaded on perisporium, in the casing upper space cooling blower is housed, control element and control panel, have fresh air inlet on the outer cover plate of casing, the air channel cover plate links to each other with inner cover plate and forms the air channel, and the air inlet of blower fan communicates with upper space, the air channel extend in, slot between the outer glass plate, and there is upper guide plate to lead, air enters the casing upper space by the outer cover plate fresh air inlet, is transported to the air channel by blower fan, in passing through then, slot between the glass outer plate is discharged by the lower end; One side is equipped with bottom guide in inner layer glass plate lower end, and air-flow is discharged forward by the bottom of door; Heater is adorned at upper and lower, back in the casing high-temperature region respectively, and they can select to open respectively or intersect unlatching as required; Inwall in the high-temperature region is equipped with fan, can make the food heating temperature even.

The present invention can cool off control panel and control element well, thereby has guaranteed the service life of appliance component, and can cool off whole surface and the handle that constitutes door effectively quickly and evenly, thereby reaches the purpose of safe handling.

Description of drawings

Fig. 1 is a structural representation of the present invention.

Fig. 2 is the structural representation of door of the present invention.

Fig. 3 is that wind turns to schematic diagram for the first time.

Fig. 4 is that wind turns to schematic diagram for the second time.

Fig. 5 is that wind flows to side view when door.

Fig. 6 is an air channel of the present invention cover plate schematic diagram.

The specific embodiment

Extremely shown in Figure 6 as Fig. 1, this has the electric oven of cooling system, comprise the casing of forming by base plate 16, outer cover plate 2, inner cover plate 26 is divided into upper and lower two spaces with cabinets cavity, lower space is high-temperature region 17, the front, high-temperature region is provided with the door that can open, close, and this door is by doorframe 12 and inside and

outside layer glass

10,9 and shake hands 8 to form, on O-ring seal 13 is housed.The perisporium of high-temperature region is equipped with insulation material 20, it can be heat-preservation cotton or other heat preserving and insulating material, heater 18 down is housed on the lower plate 19 of high-temperature region, top heater 25 is housed at the top, back heater 22 is equipped with at the back, they connect control element 4, display element 5 respectively, on control panel 6, select top heater 25, back heater 22 or heater 18 heating down as required.Casing high-temperature region heat circulation when heating in order to reach heater, it is even to reach temperature, can load onto fan 23 at the back of the thermal treatment zone, installs backboard 21 additional in the fan front, in case the baked foods in the casing is run into fan 23 and heater 22.Upper space at casing is equipped with cooling blower 1, control element 4, display element 5 and control panel 6, offers fresh air inlet 24 on outer cover plate 2 above the cooling blower 1, and air channel cover plate 11 is connected to form air channel 3 with inner cover plate 26.Cooling blower air inlet through hollow shaft mouth communicates with casing top inner chamber, the radially air outlet of blower fan is with respect to air channel 3, this air channel extends to the doorframe top, and link to each other air channel cover plate 11 and glass outer are inboard with upper guide plate 7, wind in the air channel is imported in the inside and outside layer of slot between the

glass

10,9, in the outside, inner layer glass lower end bottom guide 14 is housed, wind is discharged to the front by the outlet at bottom 15 of door.

During use, will treat that food roasting puts into the high-temperature region 17 of baking box, handle the heater of opening in the

casing

18,22,25 on demand, and show their duties by display element 5 with control panel.Blower fan 1 is opened simultaneously, because negative pressure makes outside air enter casing top from the fresh air inlet 24 of enclosing cover 2, enter by blower fan air inlet through hollow shaft mouth, radially air-out is by air channel cover plate 11 inlets 27, turn by upper guide plate guiding and to enter slot between the inside and outside layer glass from exporting 28 again, turn by bottom guide 15 guiding then and discharge forward from door outlet at bottom 15.Can cool off control element timely and effectively like this, heat around the display element, can get rid of the heat that double glazing internal cause barbecue produces again, thereby effectively farthest reduce the temperature on control element, control panel, handle and glass outer surface, lower more than 20 ℃ than general baking box surface temperature, improved baking box service life and safety in utilization.

Claims

1, a kind of electric oven that has cooling system, it comprises casing, inner cover plate (26) is divided into casing, following two spaces, lower space is high-temperature region (17), be used to open and close in the high-temperature region is equipped with, glass outer (10), (9) door, be loaded on the heater of high-temperature region inwall and the insulation material (20) of high-temperature region perisporium, it is characterized in that in the upper space of casing cooling blower (1) being housed, control element (4), display element (5) and control panel (6), the casing top is positioned on the outer cover plate (2) of blower fan (1) top and offers fresh air inlet (24), air channel cover plate (11) is formed the air channel with inner cover plate (26), the air inlet through hollow shaft mouth of blower fan communicates with the casing upper space, the warp-wise air outlet is with respect to the air channel, this air channel extends the doorframe top, by the upper guide plate (7) that links to each other with the glass outer inboard, in the wind introducing, glass outer (10), (9) slot between is discharged by the bottom of door.

2, the electric oven that has cooling system according to claim 1 is characterized in that described inner layer glass bottom outside is equipped with bottom guide (14), makes wind be discharged forward by the bottom of door.

3, the electric oven that has cooling system according to claim 1 and 2, the heater that it is characterized in that described high hot-zone (17) inwall can be installed in upper and lower, back respectively, and upper and lower, back heater (25), (18), (22) are linked to each other with display element (5) with control element (4) respectively.

4, the electric oven that has cooling system according to claim 3 is characterized in that the high hot-zone of casing inwall is equipped with fan (23).