CN111603062A - Baking pans and ovens - Google Patents

Abstract

The invention belongs to the field of household appliances, and discloses a baking pan and an oven. The baking pan (100) includes a hollow interlayer wall and a phase-change working medium (3), and the hollow interlayer wall includes a part of the baking pan (100). A bottom wall of a roasting pan and a bottom interlayer cavity (1) formed in the bottom wall of the roasting pan, and the phase-change working medium (3) is at least partially accommodated in the bottom interlayer cavity (1). In the present invention, when the temperature of the grill pan increases gradually during the cooking process, the phase change working medium can continuously absorb the heat transmitted by the grill pan, especially when the phase change working medium is heated to the phase change temperature and undergoes a phase change, it can Absorbs a large amount of heat transmitted by the grill, so the temperature of the grill is greatly reduced, which can effectively reduce the oil on the grill to vaporize into oil fume, thereby reducing the leakage of oil fume and affecting human health or forming stubborn oil stains on the oven, effectively improving user experience .

Description

Baking pans and ovens

technical field

The present invention relates to the technical field of household appliances, in particular, to a baking pan and an oven.

Background technique

The operating temperature of the existing electric oven can reach 200°C to 300°C. In this temperature range, the electric oven will generate a large amount of oily smoke during the baking process. When there is a closing gap or the door body of the electric oven is opened, the internal oil fumes will leak out, thus affecting human health. In addition, part of the oil fume will condense and adhere to the oven cover when it leaks out to form stubborn oil stains, which is not conducive to cleaning and maintenance.

In the prior art, there are mainly two methods to solve the problem of large oil fume in electric ovens. The first is to turn on the range hood during the use of the electric oven. Although this solution can effectively reduce the amount of oil fume in the external environment, it does not Solve the problem of oil fume leakage, so the phenomenon of stubborn oil stains on the oven cover still exists. The second is to reduce the use temperature of the electric oven to reduce the generation of oil fume, but the reduction of the use temperature will cause the cooking time to become longer, so it will more or less adversely affect the cooking effect.

SUMMARY OF THE INVENTION

Aiming at the above-mentioned defects or deficiencies of the prior art, the present invention provides a baking pan and oven, which can effectively reduce the amount of oil fume generated in the baking pan, thereby reducing the leakage of oil fume and effectively improving user experience.

In order to achieve the above object, a first aspect of the present invention provides a baking pan, the baking pan includes a hollow interlayer wall and a phase change working medium, the hollow interlayer wall includes a baking pan bottom wall of the baking pan and a The bottom interlayer cavity in the bottom wall of the roasting pan, and the phase-change working medium is at least partially accommodated in the bottom interlayer cavity.

Optionally, the phase change working medium is accommodated in the bottom interlayer cavity.

Optionally, the bottom interlayer cavity includes a working medium filling cavity and an expansion reserved cavity that communicate with each other, and the phase-change working medium fills the working medium filling cavity.

Optionally, the roasting pan is in a concave shape, and the hollow interlayer wall further comprises a roasting pan peripheral wall of the roasting pan and a peripheral interlayer cavity formed in the roasting pan peripheral wall, and the peripheral interlayer cavity is connected to the peripheral interlayer cavity. The bottom interlayer cavity is connected;

Wherein, the phase-change working medium is accommodated in the bottom interlayer cavity, or the phase-change working medium fills the bottom interlayer cavity and at least part of the peripheral interlayer cavity.

Optionally, the hollow interlayer wall comprises a pan wall, an outer wall surface of the pan wall is formed with an outer convex portion of the pan wall that protrudes outward, and the interlayer cavity of the hollow interlayer wall comprises a main body of the interlayer cavity and a pan wall. An outer convex portion reserved cavity formed in the outer convex portion of the disk wall, and the interlayer cavity main body communicates with the outer convex portion reserved cavity.

Optionally, the outer convex portion of the pan wall includes a plurality of outer convex portions of the bottom wall formed on the top surface of the bottom wall of the baking pan, and the plurality of outer convex portions of the bottom wall all extend along a straight line and are arranged in parallel and spaced in sequence. , an oil passage is formed between the adjacent outer convex parts of the bottom wall.

Optionally, a plurality of oil passage holes are formed on the top surface of the bottom wall of the roasting pan, and an oil collection cavity connected to the oil passage holes is formed in the bottom interlayer cavity.

Optionally, the bottom wall of the roasting pan is formed with a plurality of oil-passing holes, the roasting pan further comprises an oil collecting box connected to the bottom wall of the roasting pan, and the oil-passing holes are connected to the box of the oil collecting box. cavity communication.

Optionally, the phase transition temperature of the phase change working medium is not higher than 200°C.

Optionally, the roasting pan further includes an insulating layer disposed outside the hollow interlayer wall.

A second aspect of the present invention provides an oven, which includes the above-mentioned baking pan.

In the present invention, when the temperature of the grill pan increases gradually during the cooking process, the phase change working medium can continuously absorb the heat transferred by the grill pan, especially when the phase change working medium is heated to the phase change temperature and undergoes a phase change, it can It absorbs a large amount of heat transmitted by the grill, so the temperature of the grill can be greatly reduced, which can effectively reduce the oil on the grill to vaporize into oil fume, thereby reducing the leakage of oil fumes and affecting human health or forming stubborn grease stains on the oven, effectively improving user experience .

Other features and advantages of the present invention will be described in detail in the detailed description that follows.

Description of drawings

The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification, and together with the following specific embodiments, are used to explain the present invention, but do not constitute a limitation to the present invention. In the attached image:

Fig. 1 is the top view of a kind of roasting pan in the specific embodiment of the present invention;

Fig. 2 is the side sectional view of the roasting pan in Fig. 1;

Fig. 3 is the top view of another kind of roasting pan in the specific embodiment of the present invention;

Fig. 4 is the side sectional view of the roasting pan in Fig. 3;

Fig. 5 is the top view of another kind of roasting pan in the specific embodiment of the present invention;

Fig. 6 is the side sectional view of the roasting pan in Fig. 5;

FIG. 7 is an exploded view of a partial structure of the baking pan in FIG. 2 .

Description of reference numbers:

100 pans

1 Bottom interlayer cavity 2 Circumferential interlayer cavity

3 Phase change working medium 4 Outer convex part of bottom wall

5 Reserved cavity for the outer convex part 6 Oil passage hole

7 Oil collection box 8 Insulation layer

Detailed ways

The specific implementations of the embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific implementation manners described herein are only used to illustrate and explain the embodiments of the present invention, and are not used to limit the embodiments of the present invention.

It should be noted that the embodiments of the present invention and the features of the embodiments may be combined with each other under the condition of no conflict.

In the embodiments of the present invention, unless otherwise stated, the directional words used such as "upper, lower, top, bottom" are usually for the directions shown in the drawings or for vertical, vertical or A word describing the mutual positional relationship of each component in the direction of gravity.

The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with exemplary embodiments.

As shown in FIGS. 1 to 7 , the first exemplary embodiment of the present invention provides a baking pan 100 , and the baking pan 100 includes a hollow interlayer wall and a phase change working medium 3 . Wherein, the hollow interlayer wall includes the bottom wall of the roasting pan 100 and the bottom interlayer cavity 1 formed in the bottom wall of the roasting pan, and the phase-change working medium 3 is at least partially accommodated in the bottom interlayer cavity 1, for example, the phase-change working medium 3 The bottom sandwich cavity 1 can be completely filled or only a partial area of the bottom sandwich cavity 1 can be filled. In addition, the phase change working medium may include different types of working medium such as liquid-phase change working medium or solid-liquid phase changing working medium.

When the baking pan 100 of the present exemplary embodiment is used in the oven, with the increase of the cooking time, the temperature of the baking pan 100 will gradually increase. Especially when the phase-change working medium is heated to the phase-change temperature and undergoes a phase change, the heat absorbed from the baking pan 100 can be greatly increased. Therefore, by setting the phase-change working medium, the baking pan 100 can be The temperature during the cooking process is effectively reduced, thereby effectively reducing the oil on the grill pan 100 from vaporizing into oil fume, thereby reducing the leakage of oil fume to affect human health or forming stubborn oil stains on the oven, thereby effectively improving user experience.

In one embodiment, the phase change working medium 3 may be set to be accommodated only in the bottom interlayer cavity 1 , and the phase change working medium 3 may completely fill the bottom interlayer cavity 1 or only a partial area of the bottom interlayer cavity 1 . Since the phase change working medium 3 is heated to the phase change temperature and undergoes a phase change, a certain volume expansion will occur. Therefore, in order to ensure stable pressure in the bottom interlayer cavity 1 and avoid deformation of the baking pan 100, a pressure relief structure needs to be provided.

In one embodiment, when the phase-change working medium 3 is a liquid-phase change working medium and the bottom interlayer cavity 1 is completely filled, an exhaust port that communicates with the bottom interlayer cavity 1 may be provided on the baking pan 100 . The gas phase change working medium is heated to the phase change temperature to change from liquid state to gaseous state, and the gaseous phase change working medium can be discharged from the exhaust port (that is, to realize pressure relief), so as to avoid the pressure in the bottom interlayer cavity 1 from increasing significantly, and then maintain the cavity The internal pressure is stable.

In one embodiment, the bottom interlayer cavity 1 may include a working medium filling cavity and an expansion reserved cavity that communicate with each other, and the phase-change working medium 3 only fills the working medium filling cavity. Under this structure, when the phase change working medium undergoes a phase change to generate volume expansion, the expanded part of the phase change working medium can diffuse and move to the expansion reserved cavity, so as to avoid a large increase in the pressure in the working medium filling cavity. On the whole, the pressure in the bottom interlayer cavity 1 is always kept in a relatively stable state. For example, the middle region of the bottom interlayer cavity 1 can be formed as a working medium filling cavity, and the interlayer cavity region located on the lateral outer side of the working medium filling cavity (that is, the edge region of the bottom interlayer cavity 1) can be formed as the expansion reserved cavity, At this time, if the phase change working medium expands in volume, its expanded part can diffuse and move from the middle region of the bottom sandwich cavity 1 to the edge region, that is, from the working medium filling cavity to the expansion reserved cavity.

In one embodiment, when the baking pan 100 is set in a concave shape, the hollow interlayer wall may further include a baking pan peripheral wall of the baking pan 100 and a peripheral interlayer cavity 2 formed in the baking pan peripheral wall, and the peripheral interlayer The cavity 2 communicates with the bottom sandwich cavity 1 . At this time, the phase-change working medium 3 may only be accommodated in the bottom interlayer cavity 1 , or the phase-change working medium 3 may completely fill the bottom interlayer cavity 1 and at least part of the peripheral interlayer cavity 2 at the same time.

In other words, when the baking pan 100 is provided with the bottom interlayer cavity 1 and the peripheral interlayer cavity 2 at the same time, the position of the phase-change working medium in the interlayer cavity (specifically, the position where the phase-change working medium is heated to before the phase change occurs) ) can include the following four cases:

First, the phase change working medium is only filled in part of the bottom interlayer cavity 1. At this time, depending on the volume expansion of the phase change working medium itself, the expansion part can only diffuse and move in the bottom interlayer cavity 1, or diffuse and move. To fill a partial area of the peripheral interlayer cavity 2 , or to diffuse and move to completely fill the peripheral interlayer cavity 2 .

Second, the phase change working medium completely fills the bottom interlayer cavity 1. At this time, depending on the volume expansion of the phase change working medium itself, the expanded part can only diffuse and move to the part of the surrounding interlayer cavity 2 filled, or diffuse and move to The peripheral interlayer cavity 2 is completely filled.

Third, the phase change working medium completely fills the bottom interlayer cavity 1 and at the same time fills part of the peripheral interlayer cavity 2. At this time, depending on the volume expansion of the phase change working medium itself, the expanded part can only diffuse and move to the filling circumference More area of the interlayer cavity 2 , or diffusion moves to completely fill the perimeter interlayer cavity 2 .

Fourth, the phase-change working medium completely fills the bottom interlayer cavity 1 and the peripheral interlayer cavity 2. The phase-change working medium at this time is usually a liquid-phase change working medium. Therefore, an exhaust port that communicates with the peripheral interlayer cavity 2 can be provided. to relieve pressure.

In one embodiment, the hollow interlayer wall includes a pan wall (the pan wall refers to the entire pan wall area of the pan 100, which may include the circumferential wall and the bottom wall of the pan), the outer wall surface of the pan wall The outer convex part of the disk wall protruding outward is formed, and the interlayer cavity of the hollow interlayer wall includes the main body of the interlayer cavity (the main body of the interlayer cavity can include the bottom interlayer cavity 1 and the peripheral interlayer cavity 2) and is formed in the outer convex part of the disk wall. The reserved cavity 5 of the convex part of the outer convex part is in communication, and the main body of the interlayer cavity is communicated with the reserved cavity 5 of the convex part. Under this structure, when the phase change working medium expands in volume, the expanded part can diffuse and move to the reserved cavity 5 of the convex part, so as to maintain the pressure stability in the interlayer cavity of the hollow interlayer wall.

In one embodiment, referring to FIGS. 3 to 6 , the outer convex portion of the pan wall may include a plurality of outer convex portions 4 of the bottom wall formed on the top surface of the bottom wall of the roasting pan, and the plurality of outer convex portions 4 of the bottom wall are along the Linearly extending and arranged in parallel and spaced in sequence, an oil passage is formed between adjacent outer convex portions 4 of the bottom wall. It can be seen that, by arranging a plurality of bottom wall outer protrusions 4, an oil-passing structure (ie, an oil-passing groove) and a pressure relief structure (ie, the reserved cavity 5 for the outer protrusions) can be formed at the same time, so that the structure of the baking pan 100 is more concise and practical. and beautiful.

In one embodiment, a plurality of oil passage holes 6 are formed on the top surface of the bottom wall of the baking pan, and an oil collection cavity connected to the oil holes 6 is formed in the bottom interlayer cavity 1, and the oil collection cavity and the phase change working medium are mutually Isolation setting to avoid contamination of phase change working fluid by oil in the oil collecting chamber. Under this structure, part of the oil flows into the oil collecting box 5 and is insulated to a certain extent, so that its own temperature cannot reach the vaporization temperature, thereby reducing the generation of oil fume, thus reducing the leakage of oil fume or stubborn oil stains on the oven. form.

In one embodiment, the bottom wall of the roasting pan is formed with a plurality of oil passage holes 6, and the roasting pan 100 may include an oil collecting box 7 connected to the bottom wall of the roasting pan, and the oil collecting box 7 may be configured to be detachably connected to the roasting pan The bottom wall of the pan is easy to clean, and the oil passage hole 6 communicates with the box cavity of the oil collecting box 7 . For example, referring to FIGS. 5 and 6 , the oil collecting box 7 can be installed below the oil passage hole 6 , so that the oil on the bottom wall of the grill pan can flow into the box cavity of the oil collecting box 7 through the oil passage hole 6 . Similar to the above, under this structure, part of the oil flows into the oil collecting box 5 and is insulated to a certain extent, so that its own temperature cannot reach the vaporization temperature, thereby reducing the generation of oil fume, thus reducing the leakage of oil fume or The formation of stubborn grease stains on the oven.

Generally, the vaporization temperature of edible oil or oil in food ranges from 160°C to 250°C. In order to comprehensively consider factors such as the optional type range of phase change working medium, the ability to reduce oil fume generation and other factors, in one embodiment, the The phase-change working fluid 3 with a phase-change temperature below 200°C is selected, so that the available types of the phase-change working fluid are wider, and the effect of reducing oil fume is also more obvious.

In one embodiment, the baking pan 100 further includes an insulating layer 8 (eg, an air insulating layer or an insulating layer made of insulating material) disposed outside the hollow interlayer wall. Since the total heat storage of the same phase-change working medium is constant, in the case of the insulating layer 8, the heat-absorbing of the phase-change working medium from the bottom side of the baking pan 100 can be isolated, and only the surface of the oven can be absorbed. In order to avoid affecting the heat absorption of the phase change working medium on the surface of the oven, the time for maintaining the low temperature of the surface of the oven is shortened.

For example, referring to FIG. 7 , an insulating layer installation wall can be added at the bottom of the hollow interlayer wall, and the inner wall surface of the insulating layer installation wall is spaced from the outer wall surface of the hollow interlayer wall to define another interlayer cavity. The layer 8 is arranged in the interlayer cavity to insulate the phase change working medium from absorbing heat from the bottom side of the baking pan.

Optional materials for the thermal insulation layer 8 include nano aerogel thermal insulation cotton, aluminum silicate thermal insulation cotton, aluminum foil glass fiber thermal insulation cotton, etc. The thermal insulation layer 8 can also be set as an air thermal insulation layer.

In addition, the second exemplary embodiment of the present invention provides an oven using the above-mentioned baking pan 100. Obviously, the oven has all the technical effects brought about by using the baking pan 100, so it will not be repeated here. .

The optional embodiments of the embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the embodiments of the present invention are not limited to the specific details of the above-mentioned embodiments. A variety of simple modifications are made to the technical solution of the invention, and these simple modifications all belong to the protection scope of the embodiments of the present invention.

In addition, it should be noted that, the specific technical features described in the above-mentioned specific implementation manner can be combined in any suitable manner unless they are inconsistent. In order to avoid unnecessary repetition, the embodiments of the present invention The possible combinations are not specified otherwise.

In addition, various implementations of the embodiments of the present invention may also be combined arbitrarily, as long as they do not violate the ideas of the embodiments of the present invention, they should also be regarded as the contents disclosed in the embodiments of the present invention.

Claims (11)

1. The baking tray is characterized in that the baking tray (100) comprises a hollow interlayer wall and a phase change working medium (3), the hollow interlayer wall comprises a baking tray bottom wall of the baking tray (100) and a bottom interlayer cavity (1) formed in the baking tray bottom wall, and at least part of the phase change working medium (3) is accommodated in the bottom interlayer cavity (1).

2. Bakeware according to claim 1, characterized in that the phase change working medium (3) is accommodated in the bottom interlayer cavity (1).

3. Bakeware according to claim 2, characterized in that the bottom interlayer cavity (1) comprises a working medium filling cavity and an expansion reserve cavity which are communicated with each other, and the phase-change working medium (3) fills the working medium filling cavity.

4. Bakeware according to claim 1, characterized in that the bakeware (100) is concave, the hollow interlayer wall further comprises a bakeware peripheral wall of the bakeware (100) and a peripheral interlayer cavity (2) formed in the bakeware peripheral wall, the peripheral interlayer cavity (2) communicates with the bottom interlayer cavity (1);

the phase-change working medium (3) is contained in the bottom interlayer cavity (1), or the phase-change working medium (3) fills the bottom interlayer cavity (1) and at least part of the peripheral interlayer cavity (2).

5. The bakeware of claim 1, wherein the hollow interlayer wall comprises a bakeware tray wall, the outer wall surface of the bakeware tray wall is formed with a tray wall outer convex part protruding outwards, the interlayer cavity of the hollow interlayer wall comprises an interlayer cavity main body and an outer convex part reserving cavity (5) formed in the tray wall outer convex part, and the interlayer cavity main body is communicated with the outer convex part reserving cavity (5).

6. The baking tray as claimed in claim 5, wherein the tray wall outer convex part comprises a plurality of bottom wall outer convex parts (4) formed on the top surface of the bottom wall of the baking tray, the plurality of bottom wall outer convex parts (4) extend along a straight line and are sequentially arranged in parallel at intervals, and oil passing grooves are formed between the adjacent bottom wall outer convex parts (4).

7. The bakeware according to claim 1, characterized in that the top surface of the bottom wall of the bakeware is formed with a plurality of oil passing holes (6), and the oil collecting cavity communicated with the oil passing holes (6) is formed in the bottom interlayer cavity (1).

8. The baking tray as claimed in claim 1, wherein a plurality of oil passing holes (6) are formed on the bottom wall of the baking tray, the baking tray (100) further comprises an oil collecting box (7) connected to the bottom wall of the baking tray, and the oil passing holes (6) are communicated with a box cavity of the oil collecting box (7).

9. Bakeware according to claim 1, characterized in that the phase transition temperature of the phase-change working medium (3) is not higher than 200 ℃.

10. Bakeware according to claim 1, characterized in that the bakeware (100) further comprises a heat insulation layer (8) arranged outside the hollow interlayer wall.

11. An oven, characterized in that it comprises a bakeware (100) according to any one of claims 1 to 10.

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