CN101672487A

CN101672487A - oven

Info

Publication number: CN101672487A
Application number: CN200810151300A
Authority: CN
Inventors: 金圭英
Original assignee: LG Electronics Tianjin Appliances Co Ltd
Current assignee: LG Electronics Tianjin Appliances Co Ltd
Priority date: 2008-09-11
Filing date: 2008-09-11
Publication date: 2010-03-17

Abstract

The invention relates to an oven, which is used for cooling one side of a fan motor assembly of an electric storage part, guiding a part of air sucked by the fan motor assembly to the inside of a heater cap and cooling a heater, and belongs to a food baking oven. The oven according to the invention comprises the following parts: a cavity, the electric storage part for supplying a space accommodating a plurality of electrical appliance components on one side of the cavity, a heater for generating heat mounted on the electric storage part, the heater cap for covering the heater, the fan motor assembly for cooling the electric storage part to enable the air to flow, and a guide part for guiding a part of the air flowing through the fan motor assembly to the inside of the heater cap. The ovenwith the structure has the advantages of reducing noise and improving cooling effect.

Description

Baking box

Technical field

The present invention relates to a kind of food oven, saying so in more detail relates to a side at the fan motor assembly that is used to cool off electric Tibetan portion, the part in the fan motor assembly inhaled air is directed to the inside of heater housing, and is used to cool off the baking box of heater.

Background technology

Generally speaking, baking box is that food is contained in the airtight space, food is heated the cookware of culinary art a kind of.According to thermal source kind difference, above-mentioned baking box can be divided into gas burning roastor and electric oven.

Gas burning roastor mainly is that gas is acted as a fuel, and by to a plurality of nozzle supply gas, after kindling a fire, utilizes the flame that produces that the confined space of accommodating food is heated.Electric oven then is different from gas burning roastor, and it is to utilize electricity to drive a plurality of heaters, and the heat of utilizing heater to produce heats the confined space of accommodating food.

Electric oven is the outer surface and the inside of heating material simultaneously, compares with gas burning roastor, and it has following advantage: the speed of culinary art is fast, the thermal efficiency is high, stability is also high, therefore, uses electric oven more and more to become a kind of trend.

Utilize in the baking box that a plurality of heaters cook food, back (that is, cooking food finishes the back) is heated in the airtight space of accommodating food, the heater of heating will leave waste heat, need slowly cooling.

In the prior art,, need fan electromotor be set in addition, the wind that utilizes fan to produce, cooling heater in order to eliminate the waste heat of heater.

But there are the following problems in the baking box of prior art.

The fan electromotor of She Zhiing can consume extra electric power in addition, and therefore, the electricity expense that needs user's supplementary payments fan electromotor to consume is used.

Because the noise that produces when fan electromotor drives can cause the uncomfortable of user's sense organ, therefore, the image of product will be affected.

Because fan electromotor is adjacent with heater, therefore, fan electromotor is easy to sustain damage owing to the hot gas of heater, and breaks down, thereby causes electric oven can't normally bring into play its original function.

Summary of the invention

In order to solve aforesaid problems of the prior art, the object of the present invention is to provide an a kind of side that is used to cool off the fan motor assembly of electric Tibetan portion, possessing has and will suck the guide portion that an airborne part is directed to heater housing inside from the said fans electric machine assembly, and is used to cool off the baking box of heater.

In order to achieve the above object, baking box of the present invention comprises following components: cavity; In a side of cavity, be used to provide the electricity Tibetan portion of placing a plurality of electric components space; Be positioned at electric Tibetan portion, the heater that produces heat is installed; Be used to cover the heater housing of heater; The fan motor assembly that air is flowed; Be used for to be directed to the guide portion of heater housing inside by the part of fan motor assembly flow air.

Fan motor assembly comprises following several member: the fan that sucks air by the rotation of motor; Fan is contained in inside, thereby guiding sucks the fan drum of air.

Fan drum is formed with the plural outlet that can discharge the different flow air respectively.

And feature of the present invention is: guide portion is to be arranged between fan drum and the heater housing, is used to the guiding air channel that guides air to flow.

Fan motor assembly, is discharged to the outside of cavity behind the air of suction Dian KURA portion by rotatablely moving again.

In addition, baking box of the present invention also comprises following components: inside is formed with the main body of air flow circuit; Be positioned at the inside of main body, the cavity in food cooking space is provided; Be positioned at cavity one side, the electricity Tibetan portion that a plurality of electricity are hidden the member space of placing is provided; Be positioned at electric Tibetan portion one side, to the heater of the inner radiation hot gas of cavity; By rotation, make at least one mobile fan motor assembly of electric Tibetan portion's inner air.

Upside at heater and reflecting plate is provided with the cover air channel.

The cover air channel be "

" shape, its inner certain space of accommodating heater and reflecting plate that forms.

The part of cover air channel bending is formed with connecting portion, and the end of connecting portion is connected with the cover outlet of fan motor assembly.

The effect of invention

According to the baking box of the present invention that constitutes as mentioned above, has following structure: a side that is used to cool off the fan motor assembly of electric Tibetan portion, possess and be useful on the guide portion that a part that makes from the fan motor assembly inhaled air flow to inside, air channel, thus cooling heater and reflecting plate.

The present invention according to constituting as mentioned above has the minimizing noise, improves the effect of cooling effectiveness.

Therefore, do not need to be provided in addition cooling off the fan electromotor of heater and reflecting plate, cause that user's sense organ is discontented thereby can reduce the noise that produces when driving owing to fan electromotor.

In addition, suck part of air by fan motor assembly and can be discharged to the back exhaust outlet, and cooling settings is in the parts of back, thereby can improve cooling effectiveness by an end of heater housing.

Description of drawings

Fig. 1 is the stereogram of the baking box external form of one embodiment of the invention.

Fig. 2 is after the baking box top panel of one embodiment of the invention is removed, and exposes the stereogram of electric Tibetan portion.

Fig. 3 is that the air channel and the heater of the baking box primary structure of the embodiment of the invention decomposes later exploded perspective view.

Fig. 4 is that the air channel and the heater of the baking box primary structure of another embodiment of the present invention decomposes later exploded perspective view.

The symbol description of accompanying drawing major part

100: main body 110: the back faceplate panels

120: top panel 130: side panel

140: following faceplate panels 150: front panel

160: suction inlet 200: cavity

240: oven door 242: the perspective window

244: door handle 300: operating portion

321: operating grip 322: action button

326: display part 400: electric Tibetan portion

410: below the portion of electric Tibetan 420: the side cover

422,424: side exhaust outlet 430: rear board

440: fan motor assembly 442: fan

445: fan drum 446: the cover outlet

460: heater housing 464: reflecting plate

466: heater 480: guide portion

The specific embodiment

Below, with reference to the accompanying drawings, the embodiments of the invention that constitute as mentioned above are described in detail.

As shown in the figure, the external form of baking box is made of the main body 100 that forms cube shaped.

Main body 100 is made of following components: the back faceplate panels 110 that constitutes the back; Top panel 120 above constituting; Constitute the side panel 130 of two sides; Following faceplate panels 140 below constituting; Constitute the front panel 150 of front.Can be to be connected to form respectively between them, or integrally formed.

The inner space Lower Half of main body 100 is formed with the cavity 200 that the space of accommodating food is provided.Cavity 200 has than the narrow area of each panel that constitutes main body 100, and, form the cube shaped of front openings.Cavity 200 is by having certain thickness, and a plurality of plates of certain area are interconnected to form, and perhaps can be that a slab integral forms.Be formed with the gap of certain distance between the inner face of the outside of cavity 200 and main body 100, the space mounting that the gap forms has a plurality of calandrias (not prompting among the figure) that produce heat for the inner space of heating cavity 200, and, be provided with the heat-insulating material that is delivered to each panel that constitutes main body 100 respectively for the hot gas that prevents cavity 200.

The a plurality of calandrias that the inner space of cavity 200 heated for cooking food lay respectively at the below of the following faceplate panels below the formation cavity 200, and the top of the top panel above constituting.The position of calandria is not confined to the above and below of cavity 200, can be positioned at both sides yet, or only is installed on any side of cavity 200 according to the model of baking box.

Because the hot gas that calandria distributes, the inner space of cavity 200 will rise to the condition of high temperature.In detail, because the heat that calandria distributes, each plate that constitutes cavity 200 will be heated, because each plate is heated, the conduction heat that is delivered to plate will be passed to the inner space of cavity 200, thus the inner air of heating cavity 200.The hot gas that distributes in the calandria also will be through each plate that constitutes cavity 200, and the radiant heat that is transmitted will be used for the inner air of heating cavity 200.

The food that is positioned at the inner space of cavity 200 is that the radiant heat that utilizes the conduction heat of each plate transmission that hot gas heated of distributing from calandria and see through each plate transmission is finished culinary art.As mentioned above, utilize the food of conduction heat and radiant heat culinary art can be heated fast-ripenin uniformly in the inner space of cavity 200.The front of main body 100 is equipped with oven door 240, and oven door 240 can optionally be covered the front of cavity 200.Bottom, the back hinge of oven door 240 is incorporated into the bottom of front panel 150, and can be that rotate at the center with the hinge.

Oven door 240 is to constitute by having certain thickness square sheet material.The central portion of oven door 240 is equipped with perspective window 242, by the perspective window, can confirm the state of the food of cooking the inner space of cavity 200 from the outside.The perspective window is by making by resistant to elevated temperatures heat-resisting safety glass.The inner face of heat-resisting safety glass can be coated with the heat reflection material that can reflect hot gas, perhaps heat reflection coatings.In detail, the inner face of heat-resisting safety glass promptly, towards the face of cavity 200 inside, scribbles thermal reflecting coating or heat reflection material that the hot gas that cavity 200 inside forwards can be transmitted reflexes to cavity 200 inner spaces.

As mentioned above, the user can confirm the cooking status of food by perspective window 242 from the outside, and the internal state of baking box.

In the front upper of oven door 240, in detail, door handle 244 is installed at the upside of having an X-rayed window 242, when the user need rotate oven door 240, will hold door handle 244.For the space that can guarantee that the user holds, door handle 244 has certain length, and forwards outstanding formation.

Door handle 244 can form multiple shape.For example, door handle 244 can forwards not protrude, but rearward is recessed to form.That is, so long as make the user can pass through to rotate oven door 240, the shape that opens and closes cavity 200 fronts all can.

Constitute the front panel 150 of main body 100 fronts, excision forms with the corresponding part of cavity 200 openings, in case the user rotates oven door 240, oven door 240 will be opened the inner space of cavitys 200 by the front panel 150 of a cut part.Therefore, in case the user holds door handle 244, rotate oven door 240 downwards, the front of baking box will be opened, thereby can pick and place food to the inside of cavity 200.

The upside of oven door 240 is provided with operating portion 300, and for cooking food, the user can pass through operating portion 300 operation of oven.Operating portion 300 forms the part of baking box front outward appearance, and possesses just like lower member: the operating grip 321 that is used to regulate the baking box running; A plurality of action buttons 322; Be used to show the display part 326 of operating condition.

Be formed with suction inlet 160 between the upper end of the bottom of operating portion 300 and oven door 240, extraneous air can be drawn into the electricity Tibetan portion (Fig. 2 400) of the inner space of main body 100 by suction inlet 160.Portion will be elaborated below for the electricity Tibetan.

Suction inlet 160 forms the long elliptical shape of lateral length, thereby becomes the passage that extraneous air is entered into electric Tibetan portion 400 inner spaces.

Suction inlet 160 can be formed with the suction inlet of long elliptical shape of a plurality of lateral lengths, perhaps also can be to have only the laterally long formation longways of a suction inlet 160.And suction inlet 160 plays the channeling that the air of space outerpace is drawn into main body 100 inner spaces, and can form multiple shape.

That is, can form the elliptical shape of horizontal length, or laterally long rectangular shape, perhaps also can be to form, or a plurality of square opening form by a plurality of circular ports.

Below, with reference to Fig. 2 and Fig. 3, the electricity Tibetan portion 400 that is formed at main body 100 inside is described.

Fig. 2 is after the baking box top panel of one embodiment of the invention is removed, and exposes the stereogram of electric Tibetan portion.Fig. 3 is that the air channel and the heater of the baking box primary structure of the embodiment of the invention decomposes later exploded perspective view.

Electricity Tibetan portion 400 is positioned at the certain space of the upside of cavity 200, and, constituted by following components: the side panel 420 that constitutes the side; Constitute the rear board 430 of back; Constitute the front panel (not prompting among the figure) of front; Electricity below constituting is hidden subordinate's panel 410.

Side panel 420 perforation is formed with side exhaust outlet 422,424, and side exhaust outlet 422,424 is used to discharge the air that is drawn into electric Tibetan portion 400 inside by fan motor assembly 440, will be described below for fan motor assembly 440.Side exhaust outlet 422,424 forms rectangular shape, and the formation of side exhaust outlet 424 is slightly less than side exhaust outlet 422, thereby can distribute from fan motor assembly 440 inhaled airs, only a part is discharged by side exhaust outlet 424.

Rear board 430 is formed with the back exhaust outlet (not prompting among the figure) that is connected with a side of heater housing 460, and is used to discharge the air that flows out from heater housing 460, will be described below for heater housing 460.

Electricity is hidden subordinate's panel 410 essential a plurality of electronic components for baking box work is installed, and, produces the magnetron of high frequency waves that is; High-voltage capacitor to the magnetron supply power; Produce the high-tension transformer of high pressure etc.

And electricity is hidden a side of subordinate's panel 410, is provided with the fan motor assembly 440 that is used to cool off electric Tibetan portion 400.Fan motor assembly 440 uses cross flow fan usually.

Fan motor assembly 440 is to be made of following parts: by rotation, suck extraneous airs from suction inlet 160, cool off the fan 442 of electric Tibetan portion 400; Fan 442 is contained in the inboard, and the fan drum 445 of fan 442 inhaled airs etc. is passed through in guiding.

Fan 442 is arranged at the both sides of motor, suck air from the side after, discharge by fan drum 445.

Fan drum 445 is formed with side outlet (not prompting among the figure), and the side outlet is used to make by fan 442 inhaled airs discharges to the side exhaust outlet 422,424 that is formed at side panel 420.Side outlet (not prompting among the figure) preferably is formed at and side exhaust outlet 422,424 corresponding positions, and its size, and shape is also preferably corresponding.Promptly, with side exhaust outlet 424 corresponding side outlets form slightly less than with side exhaust outlet 422 corresponding side outlets, thereby the cover outlet 446 and the side outlet (not prompting among the figure) that are assigned to explanation below by fan 422 inhaled airs can be discharged.

Fan drum 445 also is formed with cover outlet 446, and cover outlet 446 is used to make and sucks part of air by fan 442 and be discharged to guide portion 480, will be described below for guide portion 480.Cover outlet 446 preferably forms and the identical size of relatively little side outlet (not having prompting among the figure), thereby can will be assigned to side outlet and 446 discharges of cover outlet by fan 442 inhaled airs.

Cover outlet 446 is connected with guide portion 480, sucks part of air by fan 442 and will flow into guide portion 480.Guide portion 480 1 ends preferably form to have and cover outlet 446 corresponding shapes, and its inboard is the shape of pipe.That is, an end is connected with cover outlet 446, and the other end is connected with the heater housing 460 that will illustrate below, thereby forms the guiding air channel of flowing to the inside of hollow guiding air.

Guide portion 480 adopts has certain thickness board making, its section be " " shape, the one side of its opening is towards the below, and it is fixing to hide 410 contacts of subordinate's panel in electricity, thereby forms the guiding air channel of flowing to the inside of hollow guiding air.

One end of guide portion 480 is provided with heater housing 460.The effect of heater housing 460 is: the hot gas that prevents heater 466 flow to electric Tibetan portion 400, and heater housing is inner forms a passage, thereby plays the flow effect of passage of inner air.To be described below for heater 466.

The inside of heater housing 460 is provided with as lower member: owing to the calandria that the effect of power supply is generated heat, promptly heater 466; The hot gas of heater 466 is reflexed to the reflecting plate 464 of inside cavity.

Heater 466 forms the cylindrical shape of laterally droping to the ground with certain diameter.And, except fixed heater 466 reflecting plates 464 following, above, front, back, and certain at interval distance is provided with between the side.

As mentioned above, in case heater 466 forms around reflecting plate 464, the hot gas that distributes downwards from heater 466 will be towards the below of opening, reaches the hot gas that forward and backward side distributes upward and will reflex to the below by reflecting plate 464.Therefore, the hot gas of dispersing from heater 466 plate 464 that will be reflected reflexes to the inside of cavity 200.Reflecting plate 464 is to be made by aluminium material.Therefore aluminium material has the feature of easy processing, can form multiple shape, and, outstanding for the reflectivity of light such as infrared ray and ultraviolet ray and wavelength, therefore be widely used in reflecting plate.The reflectivity of the aluminium that purity is high can reach more than 90%.The cross section of reflecting plate 464 forms top narrow, the trapezoidal shape of following face width, thus make the inside that is dispersed into cavity 200 that the hot gas dispersed from heater 466 can wide more scope.

Reflecting plate 464 is formed with a plurality of through holes, and produce air by a plurality of through holes and flow, thus cooling heater 466 and reflecting plate 464.

The upside of reflecting plate 464 is provided with heater housing 460, and heater housing 460 is used to protect heater 466 and reflecting plate 464.Heater housing 460 forms has certain thickness cubic sheet material shape, and inboardly is formed with certain space, utilizes connecting elements such as rivet or screw to be fixed in electricity and hides on subordinate's panel 410.

Heater housing 460 is formed with the hole, air channel (not prompting among the figure) that forms with the corresponding through hole of position, size, the shape of guide portion 480, thereby can make by after the fan 442 suction part of air inflows, cooling heater 466 and reflecting plate 464 are discharged by the back exhaust outlet (not prompting among the figure) that is arranged at rear board 430 then.

Below, referring to figs. 1 through Fig. 3, the effect of the baking box of the present invention that constitutes as mentioned above is described in detail.

Shown that with arrow the air of the electricity Tibetan portion that is suitable for a preferred embodiment baking box of the present invention flows among Fig. 2.That is, suction represents that with solid arrow exhaust is represented with graphic arrows.

In case the user drives baking box, fan motor assembly 440 will be driven, because the rotation of fan 442, and the slit between the upper end that extraneous air will be by oven door 240 and the lower end of operating portion 300, that is, the suction inlet 160 that is formed at front panel 150 flow into the inside of electric Tibetan portion 400.

The extraneous air that flow into electric Tibetan portion 400 inside like this will flow in electricity Tibetan portion 400, and cool off the electronic unit of electric Tibetan portion 400, flow into fan drum 445 then.

Flow into fan motor assembly 440 part of air and will not be discharged to the side exhaust outlet 422,424 that is formed at side panel 420 by side outlet (having prompting among the figure).The air of discharging will flow to the space between side panel 420 and the side panel 130, then by the space between cavity 200 and the following faceplate panels 140, be discharged to the exhaust outlet (not prompting among the figure) that is formed at lower end, the place ahead.

The airborne remainder that flow into fan motor assembly 440 will flow to guide portion 480 by cover outlet 446.The air that flow into guide portion 480 will flow to the inside of heater housing 460, and cooling reflecting plate 464 and heater 466, be discharged to the outside of electric Tibetan portion 400 then by the back exhaust outlet (not have among the figure to point out) that is formed at rear board 430.Flow to the space between rear board and the back faceplate panels 110 then,, discharge from the exhaust outlet (not prompting the figure) that is formed at lower end, the place ahead again by the space between cavity 200 and the following faceplate panels 140.

By aforesaid process repeatedly, will cool off electric Tibetan portion 400 and heater 466.

Scope of the present invention is not limited in aforesaid embodiment, and the technical field under the present invention is carried out various deformation probably.

For example, illustrated among the embodiment guide portion 480 is set in addition, situation about combining then with heater housing 460, still, also can be integrally formed.

Fig. 4 is that the air channel and the heater of the baking box primary structure of another embodiment of the present invention decomposes later exploded perspective body figure.

With the part that aforesaid embodiment repeats, will omit explanation.

As shown in the figure, the upside of heater 466 and reflecting plate 464 be provided with probably "

" the cover air channel 470 of shape, and its inside is formed with certain space and accommodates heater 466 and reflecting plate 464.

And the part of the bending in cover air channel 470 is formed with connecting portion 470a, and the end of connecting portion 470a is connected with the cover outlet 446 of fan motor assembly 440.

Therefore, the part from fan motor assembly 440 inhaled airs will be discharged to connecting portion 470a by cover outlet 446.And the air that flow to connecting portion 470a will flow into cover air channel 470, and cooling reflecting plate 464 and heater 466, be discharged to the rear then.

Claims

1. a baking box comprises following components: cavity; In a side of cavity, be used to provide the electricity Tibetan portion of placing a plurality of electric components space; Be positioned at electric Tibetan portion, the heater that produces heat is installed; The fan motor assembly that air is flowed; It is characterized in that, be positioned at electric Tibetan portion and also include, be used to cover the heater housing of heater; To be directed to the guide portion of heater housing inside by the part of fan motor assembly moving air.

2. baking box according to claim 1 is characterized in that, the said fans electric machine assembly comprises following several parts: by the rotation of motor, suck the fan of air; Fan is contained in the inboard, thus the fan drum of guiding inhaled air.

3. baking box according to claim 2 is characterized in that: fan drum is formed with the plural outlet that can discharge the different flow air respectively.

4. baking box according to claim 1 is characterized in that: guide portion is to be arranged between fan drum and the heater housing, the guiding air channel that the guiding air flows.

5. baking box according to claim 1 is characterized in that: fan motor assembly, is discharged to the outside of cavity behind the air of suction Dian KURA portion by rotatablely moving again.

6. baking box, comprise following components: inside is formed with the main body of air flow circuit; Be positioned at the inside of main body, the cavity of the cooking space of food is provided; Be positioned at a side of cavity, the electricity Tibetan portion of placing a plurality of electric components space is provided; Be positioned at a side of electric Tibetan portion, to the heater of the inner radiation hot gas of cavity; The hot gas that heater is sent reflexes to the reflecting plate of cavity inboard; By rotation, at least one fan motor assembly that the inner air of electric Tibetan portion is flowed is characterized in that, is provided with the cover air channel at the upside of heater and reflecting plate.

7. baking box according to claim 6 is characterized in that: the cover air channel for "

8. baking box according to claim 7 is characterized in that: the part of cover air channel bending is formed with connecting portion, and the end of connecting portion is connected with the cover outlet of fan motor assembly.