CN216754254U

CN216754254U - Oven with air-cooled heat insulation system

Info

Publication number: CN216754254U
Application number: CN202123122192.8U
Authority: CN
Inventors: 黄振雄; 聂政
Original assignee: Guangdong Shunde Ou Ning Technology Electric Co ltd
Current assignee: Guangdong Shunde Ou Ning Technology Electric Co ltd
Priority date: 2021-12-10
Filing date: 2021-12-10
Publication date: 2022-06-17
Anticipated expiration: 2031-12-10

Abstract

The utility model relates to the technical field of cooking appliances, in particular to an oven with an air-cooling heat insulation system, which comprises a shell and an inner container, wherein the inner container is used for containing and baking food, the inner container is arranged in the shell, a gap is formed between the inner container and the shell, a blowing device for introducing air flow into the gap between the inner container and the shell is arranged between the shell and the inner container, the blowing device comprises a plurality of air inlets and a plurality of air outlets, a through hole is formed in the shell, the air inlets are communicated with the through hole, and the air outlets are arranged between the shell and the inner container; form the air current interlayer between the inner bag shell, delay the rate of heat transfer to the shell of inner bag outer wall, along with blast apparatus's continuous operation, the heat on inner bag surface is constantly taken away by the air current to reach even long-time use oven also can not make the too high effect of shell surface temperature.

Description

Oven with air-cooled heat insulation system

Technical Field

The utility model relates to the technical field of cooking appliances, in particular to an oven with an air cooling and heat insulation system.

Background

When the oven is used, because the internal temperature of the oven is higher, a circle of heat insulation cotton is covered on the outer surface of the inner container to avoid the temperature rise of the outer surface of the oven from exceeding the standard, but when the oven is used for a long time, the heat insulation effect of the heat insulation cotton is reduced, so that the outer surface of the oven becomes hot.

Some ovens in the prior art, such as an oven with an air-cooled passage inside, have been provided with an air-cooled passage inside the door and at the top of the oven.

However, in the oven of the prior art, it is difficult to form the air cooling channel on the side surface of the oven, and the heat insulation effect of the side surface of the oven is still not guaranteed.

SUMMERY OF THE UTILITY MODEL

The utility model provides the oven with the air-cooling heat insulation system, aiming at solving the problems that the heat insulation effect is poor and the surface temperature of the oven is higher when the oven is used for a long time in the prior art.

In order to solve the technical problems, the technical scheme adopted by the utility model is as follows: the utility model provides an oven with forced air cooling heat-insulating system, includes the shell and is used for splendid attire and the inner bag of baking food, the inner bag sets up inside the shell, and has the clearance between inner bag and the shell, be provided with between shell and the inner bag and be used for letting in the blast apparatus of air current to the clearance between inner bag and the shell, blast apparatus includes a plurality of air intakes and a plurality of air outlet, the opening has been seted up on the shell, the air intake is linked together with the opening, and is a plurality of the air outlet sets up between shell and inner bag.

According to the utility model, the blowing device sucks outside cold air into the air inlet from the through hole and discharges the cold air through the air outlet, airflow discharged from the air outlet flows between the liner and the shell, heat on the outer wall of the liner is taken away in time, an airflow interlayer is formed between the liner and the shell, the rate of transferring the heat on the outer wall of the liner to the shell is delayed, the heat on the surface of the liner is continuously taken away by the airflow along with the continuous operation of the blowing device, and therefore, the effect that the surface temperature of the shell is not too high even if the oven is used for a long time is achieved.

Furthermore, the blowing device also comprises a fan and a rectification shell, wherein the fan is used for sucking air flow from the air inlet and blowing the air flow out from the air outlet, the air inlet is arranged on the rectification shell, and the air outlet comprises a first air outlet used for blowing the air flow towards the front of the liner, a second air outlet and a third air outlet which respectively blow the air flow towards two sides of the liner, a fourth air outlet used for blowing the air flow towards the back of the liner and a fifth air outlet used for blowing the air flow towards the bottom of the liner.

Furthermore, the opening is arranged at the bottom of the shell, the blowing device is arranged below the inner container, and the air inlet is attached to the upper portion of the opening. Because of the air is heated and rises, comparatively microthermal air is located lower position department, consequently, the fan that is located the inner bag below can be directly with the comparatively microthermal air of oven bottom from opening and air intake suction rectification casing in, blast apparatus and opening all set up in the inner bag below simultaneously, and opening and air intake direct laminating, reach the flow path after reducing the outside cold air entering oven as far as possible, reduce the flow path inside the oven before the clearance between shell and the inner bag is blown in by blast apparatus to the outside air, prevent that the air current from making the thermal-insulated effect of cooling decline because of premature heating up. The first air outlet is arranged on the side wall of the front end of the rectification shell. The second air outlet and the third air outlet extend towards two sides of the liner respectively, the fourth air outlet extends towards the rear side of the liner, and the cross-sectional planes of the second air outlet, the third air outlet and the fourth air outlet are perpendicular to the side wall of the liner, so that air flow can be parallel to the side wall of the liner when flowing out of the second air outlet, the third air outlet and the fourth air outlet, and the air flow can cover the side wall of the liner as far as possible. The fifth air outlet is arranged on the top wall of the rectification shell, so that the air flow can be directly blown to the bottom of the inner container when flowing out of the fifth air outlet, and the heat at the bottom of the inner container is quickly reduced.

Furthermore, the sum of the cross-sectional areas of the first air outlet, the second air outlet, the third air outlet, the fourth air outlet and the fifth air outlet is less than or equal to the cross-sectional area of the air inlet.

So set up for when the air current is blown off from first air outlet, second air outlet, third air outlet, fourth air outlet and fifth air outlet by the fan, its velocity of flow can obtain promoting, can form the effect of similar air curtain when having guaranteed that the air current gets into the clearance between shell and the inner bag, promotes thermal-insulated effect.

Furthermore, the first air outlet, the second air outlet, the third air outlet, the fourth air outlet and the fifth air outlet are square.

Furthermore, the shell comprises a cover body covering the top and two sides of the inner container, a rear cover covering the rear part of the inner container and a bottom plate covering the bottom wall of the inner container; the through opening is arranged on the bottom plate.

Further, the blowing device is arranged between the inner container and the bottom plate.

Further, a plurality of vent holes are formed in the top of the cover body.

Furthermore, a plurality of heat insulation plates are arranged in a gap between the cover body and the inner container.

Further, the material of heat insulating board is aerogel felt, polyurethane foam or superfine glass is cotton, the quantity of heat insulating board is two, set up respectively in the position department of being close to two relative lateral walls of inner bag, second air outlet and third air outlet extend to the position department between heat insulating board and the inner bag lateral wall, make the air current that second air outlet and third air outlet blown out get into between heat insulating board and the inner bag, make the heat of the two relative lateral walls of inner bag by air curtain and heat insulating board separation in proper order, the speed on heat transfer to the shell of inner bag outer wall has greatly been delayed.

Further, the rear cover is provided with a plurality of heat dissipation holes.

Furthermore, the through hole of the bottom plate is covered with a filter plate for blocking impurities from passing through.

Compared with the prior art, the utility model has the beneficial effects that:

1. by arranging the gap between the shell and the inner container and placing the blowing device in the gap, the blowing device blows outside cold air into the gap between the shell and the inner container to form an air interlayer and take away heat on the outer surface of the inner container, so that the heat on the surface of the inner container can be effectively delayed to be transferred to the shell, and the overhigh temperature of the surface of the shell after the oven is used for a long time is prevented;

2. the sum of the cross sectional areas of the first air outlet, the second air outlet, the third air outlet, the fourth air outlet and the fifth air outlet is smaller than or equal to the cross sectional area of the air inlet, so that the flow speed of the airflow can be improved when the airflow is blown out from the first air outlet, the second air outlet, the third air outlet, the fourth air outlet and the fifth air outlet by the fan, an effect similar to an air curtain can be formed when the airflow enters a gap between the shell and the inner container, and the heat insulation effect is improved;

3. the first air outlet, the second air outlet, the third air outlet, the fourth air outlet and the fifth air outlet are all rectangular, so that airflow is in a strip shape when flowing out of the first air outlet, the second air outlet, the third air outlet, the fourth air outlet and the fifth air outlet, and an air curtain is formed between the shell and the inner container more easily;

4. the opening sets up in the shell bottom, and blast apparatus sets up in the inner bag below, and the air intake laminating sets up in the opening top. Because of the air is heated and rises, comparatively microthermal air is located lower position department, consequently, the fan that is located the inner bag below can be directly with the comparatively microthermal air of oven bottom from opening and air intake suction rectification casing in, blast apparatus and opening all set up in the inner bag below simultaneously, and opening and air intake direct laminating, reach the flow path after reducing the outside cold air entering oven as far as possible, reduce the flow path inside the oven before the clearance between shell and the inner bag is blown in by blast apparatus to the outside air, prevent that the air current from making the thermal-insulated effect of cooling decline because of premature heating up. The first air outlet is arranged on the side wall of the front end of the rectification shell. The second air outlet and the third air outlet extend towards two sides of the liner respectively, the fourth air outlet extends towards the rear side of the liner, and the cross-sectional planes of the second air outlet, the third air outlet and the fourth air outlet are perpendicular to the side wall of the liner, so that air flow can be parallel to the side wall of the liner when flowing out of the second air outlet, the third air outlet and the fourth air outlet, and the air flow can cover the side wall of the liner as far as possible. The fifth air outlet is arranged on the top wall of the rectification shell, so that the air flow can be directly blown to the bottom of the inner container when flowing out of the fifth air outlet, and the heat at the bottom of the inner container is quickly reduced.

Drawings

FIG. 1 is an exploded view of an embodiment of an oven with an air-cooled insulation system according to the present invention, with the door removed;

FIG. 2 is a schematic view of an overall structure of a blower device in an embodiment of an oven with an air-cooled heat insulation system according to the present invention;

fig. 3 is an exploded view of a blower in an embodiment of an oven having an air-cooled insulation system of the present invention.

In the drawings: 1. a housing; 11. a cover body; 12. a rear cover; 13. a base plate; 2. an inner container; 3. a blowing device; 31. an air inlet; 32. an air outlet; 321. a first air outlet; 322. a second air outlet; 323. a third air outlet; 324. a fourth air outlet; 325. a fifth air outlet; 33. a fan; 34. a rectifying housing; 4. a port; 5. a vent hole; 6. a heat insulation plate; 7. heat dissipation holes; 8. and (4) filtering the plates.

Detailed Description

The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.

The same or similar reference numerals in the drawings of the embodiments of the present invention correspond to the same or similar components; in the description of the present invention, it should be understood that if there are terms such as "upper", "lower", "left", "right", "long", "short", etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the drawings, it is only for convenience of description and simplicity of description, but does not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and therefore, the terms describing the positional relationships in the drawings are only used for illustrative purposes and are not to be construed as limitations of the present patent, and specific meanings of the terms may be understood by those skilled in the art according to specific situations.

The technical scheme of the utility model is further described in detail by the following specific embodiments in combination with the attached drawings:

example 1

Referring to fig. 1 to 3, an embodiment 1 of an oven with an air-cooling heat insulation system according to the present invention includes a housing 1 and an inner container 2 for containing and baking food, the inner container 2 is disposed inside the housing 1, a gap is provided between the inner container 2 and the housing 1, a blowing device 3 for introducing air flow into the gap between the inner container 2 and the housing 1 is disposed between the housing 1 and the inner container 2, the blowing device 3 includes a plurality of air inlets 31 and a plurality of air outlets 32, a through opening 4 is disposed on the housing 1, the air inlets 31 are communicated with the through opening 4, and the air outlets 32 are disposed between the housing 1 and the inner container 2.

Specifically, the inner container 2 has a rectangular parallelepiped shape, a front wall of which is opened for a user to put food into the inner container 2, and a door (not shown in fig. 1) is provided on the front wall. The shell 1 comprises a cover body 11 covering the top and two sides of the inner container 2, a rear cover 12 covering the rear part of the inner container 2 and a bottom plate 13 covering the bottom wall of the inner container 2, the cover body 11, the rear cover 12 and the bottom plate 13 are connected with each other through bolts, and the shell 1 is connected with the inner container 2 through bolts.

In this embodiment, the blowing device 3 further includes a fan 33 and a rectifying casing 34, the air inlet 31 is disposed on the rectifying casing 34, and the air outlet 32 includes a first air outlet 321 for blowing an air flow to the front of the inner container 2, a second air outlet 322 and a third air outlet 323 for blowing an air flow to both sides of the inner container 2, a fourth air outlet 324 for blowing an air flow to the back of the inner container 2, and a fifth air outlet 325 for blowing an air flow to the bottom of the inner container 2; the fan 33 comprises an air inlet end and an air blowing end, the air inlet end is communicated with the air inlet 31, and the air blowing end faces the inside of the shell 1.

Specifically, opening 4 sets up in shell 1 bottom, and blast apparatus 3 sets up in inner bag 2 below, and the laminating of air intake 31 sets up in opening 4 top. Because of the air is heated and rises, comparatively microthermal air is located lower position department, consequently be located the comparatively microthermal air of inner bag 2 below fan 33 can directly be with the oven bottom in the rectification casing 34 of intake port 4 and air intake 31 suction, blast apparatus 3 all sets up in inner bag 2 below with port 4 simultaneously, and port 4 and air intake 31 direct laminating, reach the flow path after reducing the outside cold air entering oven as far as possible, reduce the outside air and blow in the inside flow path of oven before the clearance between shell 1 and the inner bag 2 by blast apparatus 3, prevent that the air current from making the thermal-insulated effect of cooling decline because of early intensification. The first air outlet 321 is opened in a side wall of the front end of the rectification case 34. The second air outlet 322 and the third air outlet 323 respectively extend toward two sides of the liner 2, the fourth air outlet 324 extends toward the rear side of the liner 2, and cross-sectional planes of the second air outlet 322, the third air outlet 323 and the fourth air outlet 324 are perpendicular to the sidewall of the liner 2, so that the airflow can be parallel to the sidewall of the liner 2 when flowing out from the second air outlet 322, the third air outlet 323 and the fourth air outlet 324, and the airflow can cover the sidewall of the liner 2 as much as possible. The fifth air outlet 325 is disposed on the top wall of the rectification housing 34, so that the airflow can directly blow to the bottom of the inner container 2 when flowing out from the fifth air outlet 325, and the heat at the bottom of the inner container 2 is rapidly reduced.

In this embodiment, the sum of the cross-sectional areas of the first outlet 321, the second outlet 322, the third outlet 323, the fourth outlet 324 and the fifth outlet 325 is less than or equal to the cross-sectional area of the inlet 31. So set up for when the air current is blown off from first air outlet 321, second air outlet 322, third air outlet 323, fourth air outlet 324 and fifth air outlet 325 by fan 33, its velocity of flow can obtain promoting, can form the effect of similar air curtain when having guaranteed that the air current gets into the clearance between shell 1 and the inner bag 2, promotes thermal-insulated effect.

In this embodiment, the first outlet 321, the second outlet 322, the third outlet 323, and the fourth outlet 324 are rectangular. The airflow is in a band shape when flowing out from the first outlet 321, the second outlet 322, the third outlet 323, and the fourth outlet 324, so that an air curtain is more easily formed between the casing 1 and the inner container 2. The fifth outlet 325 is circular.

In this embodiment, the top wall of the housing 1 is provided with a plurality of vent holes 5. Inside the air current between shell 1 and the inner bag 2 in time flowed out the oven through air vent 5 for the air current between inner bag 2 and the shell 1 remains lower temperature's state throughout, guarantees the cooling effect. Specifically, the vent holes 5 are arranged at the position of the top wall of the casing 1, which is away from the opening of the inner container 2, and are arranged along the length direction of the top wall of the casing 1 to form a belt shape, so that the airflow flowing out of the vent holes 5 can not influence the user when the user takes and puts food.

In this embodiment, a plurality of heat insulation boards 6 are arranged in the gap between the outer casing 1 and the inner container 2. Particularly, the material of heat insulating board 6 is aerogel felt, heat insulating board 6 is two in quantity, set up respectively in the position department of being close to two relative lateral walls of inner bag 2, second air outlet 322 and third air outlet 323 extend to position department between heat insulating board 6 and the inner bag 2 lateral wall, make the air current that second air outlet 322 and third air outlet 323 blown out get into between heat insulating board 6 and the inner bag 2, make the heat of the two relative lateral walls of inner bag 2 separated by air curtain and heat insulating board 6 in proper order, the speed on heat transfer to shell 1 of the outer wall of inner bag 2 has greatly been delayed.

In this embodiment, the rear portion of the housing 1 is provided with a plurality of heat dissipation holes 7. The air current between shell 1 and the inner bag 2 can be discharged through louvre 7 simultaneously, combines air vent 5, can greatly promote the air current exhaust speed between shell 1 and the inner bag 2 for the air current between shell 1 and the inner bag 2 can keep lower temperature for a long time.

In this embodiment, the through hole 4 of the housing 1 is covered with a filter plate 8 for blocking impurities from passing through. The filter plate 8 and the bottom plate 13 are integrally formed, and a plurality of holes for the circulation of the outside air are arranged on the filter plate 8. The filter sheet 8 prevents foreign substances from being sucked in from the through-openings 4 by the fan 33 to damage the blowing device 3.

Example 2

Referring to fig. 1 to 3, an embodiment 2 of an oven with an air-cooled heat insulation system according to the present invention is different from embodiment 1 in that a heat insulation board 6 is made of polyurethane foam.

Example 3

Referring to fig. 1 to 3, an embodiment 3 of an oven with an air-cooled heat insulation system according to the present invention is different from embodiment 1 in that a heat insulation board 6 is made of ultra-fine glass wool.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides an oven with air-cooled thermal-insulated system, includes shell (1) and is used for splendid attire and baking inner bag (2) of food, inner bag (2) set up inside shell (1), its characterized in that, and have the clearance between inner bag (2) and shell (1), be provided with between shell (1) and inner bag (2) and be used for letting in blast apparatus (3) of air current to the clearance between inner bag (2) and shell (1), blast apparatus (3) include a plurality of air intake (31) and a plurality of air outlet (32), opening (4) have been seted up on shell (1), air intake (31) are linked together with opening (4), and are a plurality of air outlet (32) set up in the clearance between shell (1) and inner bag (2).

2. The oven with the air-cooled heat insulation system according to claim 1, wherein the blowing device (3) further comprises a fan (33) and a rectification housing (34) for sucking air flow from the air inlet (31) and blowing out air flow from the air outlet (32), the air inlet (31) is disposed on the rectification housing (34), and the air outlet (32) comprises a first air outlet (321) for blowing out air flow to the front of the inner container (2), a second air outlet (322) and a third air outlet (323) for blowing out air flow to both sides of the inner container (2), a fourth air outlet (324) for blowing out air flow to the back of the inner container (2), and a fifth air outlet (325) for blowing out air flow to the bottom of the inner container (2).

3. The oven with the air-cooled heat insulation system according to claim 2, characterized in that the sum of the cross-sectional areas of the first air outlet (321), the second air outlet (322), the third air outlet (323), the fourth air outlet (324) and the fifth air outlet (325) is smaller than or equal to the cross-sectional area of the air inlet (31).

4. The oven with the air-cooled heat insulation system according to claim 2, wherein the first air outlet (321), the second air outlet (322), the third air outlet (323), and the fourth air outlet (324) are all square.

5. The oven with the air-cooled heat insulation system according to any one of claims 1 to 4, characterized in that the outer casing (1) comprises a cover body (11) covering the top and two sides of the inner container (2), a rear cover (12) covering the rear part of the inner container (2) and a bottom plate (13) covering the bottom wall of the inner container (2), wherein the cover body (11), the rear cover (12) and the bottom plate (13) are fixedly connected or detachably connected; the through opening (4) is arranged on the bottom plate (13).

6. Oven with air-cooled insulation system according to claim 5, characterized in, that the blowing device (3) is arranged between the inner container (2) and the bottom plate (13).

7. The oven with air-cooled thermal insulation system according to claim 5, characterized in that the top of the hood (11) is provided with a plurality of ventilation holes (5).

8. Oven with air-cooled insulation system according to claim 7, characterized in, that the rear cover (12) is provided with a plurality of louvers (7).

9. The oven with the air-cooled heat insulation system as claimed in claim 5, characterized in that a plurality of heat insulation boards (6) are arranged in the gap between the cover body (11) and the inner container (2).

10. The oven with the air-cooled heat insulation system according to claim 5, characterized in that the bottom plate (13) is covered with a filter plate (8) for blocking impurities from passing through the through hole (4).