CN111067372A

CN111067372A - Baking oven

Info

Publication number: CN111067372A
Application number: CN201911401944.9A
Authority: CN
Inventors: 苏振贺
Original assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea Kitchen Appliances Manufacturing Co Ltd
Priority date: 2019-12-30
Filing date: 2019-12-30
Publication date: 2020-04-28
Anticipated expiration: 2039-12-30
Also published as: CN111067372B; WO2021136271A1

Abstract

The invention discloses an oven which comprises an oven body and a door body, wherein a cooking cavity with an opening is formed in the oven body, the door body is hinged with the oven body, the door body can rotate between the positions for opening and closing the opening, one of the oven body and the door body is provided with a sealing piece, the other one of the oven body and the door body is provided with a sealing piece, when the door body closes the opening, the sealing piece surrounds the opening, the sealing piece is pressed by the sealing piece, and the compression amount of one end, far away from the hinged position of the door body and the oven body, of the sealing piece is larger than that of one end, close to the hinged position, of the sealing piece. According to the oven provided by the embodiment of the invention, the problem of sealing failure after the temperature of the oven is raised during operation can be effectively avoided, the sealing performance is facilitated, and the safety of an oven product is effectively improved.

Description

Baking oven

Technical Field

The invention relates to the technical field of kitchen appliances, in particular to an oven.

Background

Because of people's liking to baking food, the application of electric oven product is becoming more and more extensive. The electric oven product is a kitchen appliance for baking food by utilizing the radiant heat emitted by an electric heating element. At present, the quality safety of oven products is a problem which needs to be solved urgently, the unqualified rate of the oven products exposed to electricity at the night of 3.15 at 15 days in 2016 year is higher than 10%, wherein the electric oven products have larger lifting spaces in stability, safety and sealing performance. A good electric oven should first be well sealed to reduce heat loss. Secondly, the electric oven product is the great electrical apparatus of temperature shock, and after the inside temperature rise of oven, the chamber door of oven probably takes place certain deformation, and the sealed easy inefficacy between the chamber body of oven and the chamber door to easily take place the ann rule problem.

Disclosure of Invention

Aiming at the defects and shortcomings of the prior art, the invention provides the oven which has the advantages of good sealing performance and high safety.

An oven according to an embodiment of the present invention includes: the refrigerator comprises a refrigerator body and a door body, wherein a cooking cavity with an opening is formed in the refrigerator body, the door body is hinged with the refrigerator body, the door body can rotate between the positions for opening and closing the opening, one of the refrigerator body and the door body is provided with a sealing piece, the other one of the refrigerator body and the door body is provided with a sealing surface, when the door body closes the opening, the sealing piece surrounds the opening, the sealing surface is pressed against the sealing piece, and the compression amount of one end, far away from the hinged position of the door body and the refrigerator body, of the sealing piece on the sealing piece is larger than that of one end, close to the hinged position, of the sealing piece.

According to the oven provided by the embodiment of the invention, as the compression amount of the sealing element is larger at one end far away from the hinged position of the door body and the oven body, after the temperature of the oven rises and the door body deforms to a certain extent under the action of thermal expansion and thermal shrinkage, the reasonable compression amount can still be generated on the sealing element, so that the sealing effect is ensured, the energy loss is prevented, and the safety and the reliability of an oven product are improved.

In addition, the oven according to the above embodiment of the present invention may further have the following additional technical features:

in some embodiments, the door closes the opening such that an end of the sealing surface proximate the hinge position compresses the seal member by an amount between 1.5mm and 4.0mm different from an end of the sealing surface distal the hinge position.

In some embodiments, the door closes the opening such that an end of the sealing surface remote from the hinge position compresses the seal by between 1mm and 8 mm.

In some embodiments, the door closes the opening such that the seal face is compressed between 5% and 45% of the seal face.

In some embodiments, the height of the end of the sealing surface adjacent to the hinge position relative to the outer side of the box is less than the height of the end of the sealing surface remote from the hinge position relative to the outer side of the box.

In some embodiments, a height difference between a height of an end of the sealing surface close to the hinge position relative to an outer side surface of the case and a height of an end of the sealing surface away from the hinge position relative to the outer side surface of the case is between 1.5mm and 4.0 mm.

In some embodiments, the case is provided with a mounting surface surrounding the opening for mounting a sealing member, and the door body closes the opening, so that the sealing surface gradually extends obliquely towards the mounting surface in a direction away from the hinge position.

In some embodiments, the door body closes the opening, and the sealing surface is inclined at an angle of 0.5-0.8 ° relative to the mounting surface.

In some embodiments, the cross-section of the sealing rubber ring is a circle with a diameter of between 15mm and 26 mm.

In some embodiments, the sealing surface is annular corresponding to the sealing member, the sealing surface is disposed on the door body, and the door body is provided with a rib, the rib is located on the inner side of the sealing surface, and the rib is adapted to abut against the periphery of the opening.

In some embodiments, the seal comprises: sealing washer and connecting piece, the connecting piece with the sealing washer links to each other, wherein, locate the card hole around the opening, the connecting piece with card hole joint.

In some embodiments, the seal ring is a hollow tubular structure.

Other technical advantages of the oven according to embodiments of the present invention will be described in detail in the detailed description that follows.

Drawings

Fig. 1 is a schematic view of an oven according to one embodiment of the present invention.

FIG. 2 is a simplified illustration of a door body in an oven according to one embodiment of the present invention.

FIG. 3 is a simplified illustration of the abutting engagement of a door body with a seal in an oven according to one embodiment of the present invention.

FIG. 4 is a partial pictorial view of a door body in an oven, in accordance with one embodiment of the present invention.

Fig. 5 is a lower side view of the door body shown in fig. 4.

Fig. 6 is a left side view of the door body shown in fig. 4.

Fig. 7 is a schematic view illustrating an opened state of a door body in an oven according to an embodiment of the present invention.

Fig. 8 is an enlarged view of region a in fig. 7.

Reference numerals:

the oven (100) is provided with a heating device,

the refrigerator comprises a refrigerator body 1, a door body 2, a cooking cavity 3, a sealing piece 4, a sealing surface 5, an opening 6, a hinge joint position 7, a mounting surface 8, an inclination angle α, the diameter d of the cross section of a sealing rubber ring, a convex rib 9, a sealing ring 10, a connecting piece 11 and a clamping hole 12,

the height t1 from the sealing surface near the hinge to the outer surface of the door body and the height t2 from the sealing surface far from the hinge to the outer surface of the door body.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are illustrative and intended to be illustrative of the invention and are not to be construed as limiting the invention.

In the description of the present invention, it is to be understood that the terms "center", "thickness", "height", "upper", "lower", "front", "rear", "inner", "outer", "radial", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used merely for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

An oven 100 according to an embodiment of the present invention is described in detail below with reference to fig. 1 to 8.

Referring to fig. 1 to 8, an oven 100 according to an embodiment of the present invention includes a cabinet 1 and a door 2, and a cooking chamber 3 having an opening 6 is formed in the cabinet 1. The door body 2 is hinged with the box body 1, the door body 2 can rotate between positions for opening and closing the opening 6, wherein one of the box body 1 and the door body 2 is provided with a sealing piece 4, the other one of the box body 1 and the door body 2 is provided with a sealing surface 5, and when the door body 1 closes the opening 6, the sealing piece 4 surrounds the opening 6, and the sealing surface 5 is pressed against the sealing piece 4.

According to the oven 100 provided by the embodiment of the invention, after the door body 2 is closed, the sealing surface 5 of the door body 2 is fully abutted against the sealing element 4, so that the good sealing performance of the oven 100 can be realized, the safety of the oven 100 is powerfully improved, and the energy consumption of the oven 100 is favorably reduced.

Optionally, referring to fig. 3, a sealing member 4 is disposed on the door 2, a sealing surface 5 is disposed at a corresponding position of the box 1, and the door 2 can abut against the sealing member 4 when closing the opening 6, so that the sealing member 4 is deformed and compressed to some extent, and then an air gap between the door 2 and the box 1 is reduced, thereby sealing the door 1 and the box 2.

Optionally, referring to fig. 1, 7 and 8, a sealing member 4 is connected to the box body 1, a sealing surface 5 is formed on the door body 2, and when the door body 2 closes the opening 6, the sealing surface 5 and the sealing member 4 can be sufficiently abutted together, so that the sealing member is extruded to generate certain deformation and compression, an air gap between the door body 2 and the box body 1 is reduced, and the door body 1 and the box body 2 are sealed.

Alternatively, referring to fig. 2 and 3, the compression amount of the seal 4 by the end of the sealing surface 5 away from the hinge position 7 of the door body 2 and the cabinet 1 is greater than the compression amount of the seal 4 by the end of the sealing surface 5 close to the hinge position 7, and it should be explained that the compression amount of the seal 4 is the difference between the natural length of the seal 4 when not compressed and the length of the seal 4 when compressed and deformed most along the direction in which the sealing surface 5 compresses the seal 4.

The door body 2 is hinged on the box body 1, after the temperature of the box body 2 rises, the door body 2 is deformed under the action of expansion with heat and contraction with cold, but because the door body 2 is connected with the box body 1 through the hinged piece, the abutting action of the sealing surface 5 and the sealing piece 4 cannot be changed greatly at one end close to the hinged position 7. However, in practical application and many experiments, it is found that the door 2 expands toward the outside of the box 2 at the end away from the hinge position 7 with the increase of the temperature of the box 2, and in order to avoid poor sealing, referring to fig. 2 and 3, the oven 100 according to the embodiment of the present invention is disposed at the end away from the hinge position 7, so that the compression amount of the sealing surface 5 between the door 2 and the box 1 on the sealing member 4 is larger, thereby coping with the deformation of the door 2 caused by thermal expansion and contraction, and avoiding the separation of the sealing surface 5 from the sealing member 4, thereby ensuring the sealing effect of the oven 100.

According to the oven 100 provided by the embodiment of the invention, as the compression amount of the sealing piece 4 by the sealing surface 5 at one end far away from the hinged position 7 of the door body 2 and the oven body 1 is larger, after the oven temperature rises and the door body 2 deforms to a certain extent under the action of thermal expansion and thermal shrinkage, the reasonable compression amount can still be generated on the sealing piece 4, so that the sealing effect is ensured, the energy loss after the oven 100 works is prevented, and the safety and the reliability of an oven product are improved.

Alternatively, referring to fig. 1 to 3, 6 and 7 in combination with the directions shown in the drawings, the hinge position 7 of the body 1 and the door 2 is provided at the lower portion of the body 1 and the door 2, and the compression amount of the sealing surface 5 on the sealing member 4 is greater than that of the sealing surface 5 at the lower portion of the door 2 on the sealing member 4, so as to avoid that the sealing surface 5 at the upper portion of the door 2 is separated from the sealing surface 4 after the oven 100 is operated and the deformation of the door 2 is caused by the increase of the temperature of the oven, thereby ensuring the sealing effect of the oven 100.

Optionally, in order to realize that the compression amount of the sealing surface 5 to the sealing member 4 is larger at the end far away from the hinge position 7 of the door body 2 and the box body 1 than at the end near the hinge position 7, in combination with fig. 2 and fig. 3, the door body 2 may be set to be in a form of gradually inclining toward the sealing member 4 from bottom to top, and the sealing member 4 may also be in a form of gradually thickening from bottom to top, or, referring to fig. 4, the compression height of the door panel corresponding to the sealing surface 5 on the door body 2 may be increased to make the door panel closer to the box body 2, so as to increase the compression amount of the sealing member 4.

In order to adapt to ovens with different capacities, increase the feasibility of the scheme and realize better sealing effect, referring to fig. 1 and 3, when the door body 2 closes the opening 6, the difference between the compression amount of the end of the sealing surface 5 close to the hinge position 7 to the sealing element 4 and the compression amount of the end of the sealing surface 5 far from the hinge position 7 to the sealing element 4 is 1.5mm-4.0 mm.

Alternatively, referring to fig. 1, 3 and 7, the hinge position 7 is provided below the door 2 in the vertical direction of the drawing, the door 2 has a sealing surface 5, and the casing 1 is connected with the sealing member 4, and as shown in fig. 7, the sealing member 4 is in a natural state and is not pressed by the sealing surface 5 when the door 2 is opened. As shown in fig. 1 and 3, when the door 2 is closed, the sealing surface 5 of the upper portion of the door 2 compresses the sealing member 4 more, and the difference between the two is 1mm to 5mm compared with the compression of the sealing surface 5 of the lower portion of the door 2 on the sealing member 4. Multiple tests show that when the difference between the compression amount of the sealing element 4 at the upper part of the box body 1 and the compression amount of the sealing element 4 at the lower part of the box body 1 is controlled to be between 1mm and 5mm, the deformation of the door body 1 caused by heating can be better coped with, so that the separation of the sealing surface 5 at the upper part of the door body 2 and the sealing element 4 is avoided, and the tight combination of the sealing surface 5 and the sealing element 4 can still be ensured after the door body 1 expands outwards after the temperature rises.

Optionally, according to the size of the sealing member 4 and the capacity of the oven 100, when the door body 2 is closed, the difference between the compression amount of the sealing member 4 at the end close to the hinge position 7 and the compression amount of the sealing member 7 at the end far from the hinge position 7 is above 5mm, and a good sealing effect between the door body 2 and the oven body 1 after temperature rise can also be ensured.

Alternatively, referring to fig. 1 and 3, in order to achieve good sealing characteristics, in response to the temperature rise deformation of the door body 2, the door body 2 closes the opening 6, and the end of the sealing surface 5 far away from the hinge position 7 compresses the sealing member 4 by 1mm-8 mm.

In other embodiments, at the end far from the hinge position 7, the compression amount of the sealing surface 5 to the sealing member 4 is above 8mm, which can also effectively cope with the temperature rise deformation of the door body 2, and ensure the tight pressing state of the sealing surface 5 and the sealing member 4.

In order to improve the sealing effect and ensure the service life of the sealing member 4, referring to fig. 1 and 3, the door body 2 closes the opening 6, and the compression ratio of the sealing surface 5 to the sealing member 4 is between 5% and 45%. It should be noted that the compression ratio of the sealing member 4 refers to the ratio of the compression amount of the sealing member 4 after being compressed to the natural length of the sealing member 4 when not being compressed.

In some embodiments, the compression ratio of the sealing element 4 is between 45% and 60% according to the performance of the sealing element 4 made of different materials, so that a good sealing effect can be achieved without affecting the service life and performance of the sealing element 4.

With reference to fig. 3, 4 and 6, the end of the sealing surface 5 close to the hinge point 7 has a smaller height with respect to the outer side of the housing 1 than the end of the sealing surface 5 remote from the hinge point 7 with respect to the outer side of the housing 2. In other words, with reference to the directions shown in fig. 3 and 6, on the innermost door panel close to the cabinet 1, the thickness of the profiling corresponding to the upper sealing surface 5 is greater than the thickness of the profiling corresponding to the lower sealing surface 5, where the door panel can be formed by a simple process, and only the size of the corresponding mold needs to be adjusted.

Alternatively, referring to fig. 3 and 6 in combination with the direction of the drawing, the outer surface of the door body 2 extends in the up-down direction, and in order to achieve the above-described sealing effect, the height t1 from the sealing surface 5 close to the hinge position 7 to the outer surface of the door body 2 is smaller than the height t2 from the sealing surface 5 far from the hinge position 7 to the outer surface of the door body 2, in other words, the height t1 from the upper sealing surface 5 to the outer surface of the door body 2 is smaller than the height t2 from the lower sealing surface 5 to the outer surface of the.

In order to achieve excellent sealing performance against temperature-rising deformation, referring to fig. 6, the difference in height between the height of the end of the sealing surface 5 close to the hinge position 7 with respect to the outer side surface of the case 1 and the height of the end of the sealing surface 5 remote from the hinge position 7 with respect to the outer side surface of the case 1 is between 1.5mm and 4.0mm, in other words, in the embodiment shown in fig. 6, the difference between t1 and t2 is between 1.5mm and 4.0 mm.

In other embodiments, considering the capacity variation of the oven 100 and the size of the door 2, the difference between the height of the end of the sealing surface 5 close to the hinge position 7 relative to the outer side surface of the oven body 1 and the height of the end of the sealing surface 5 far from the hinge position 7 relative to the outer side surface of the oven body 1 is below 1.5mm, which can also achieve the effect of improving the sealing performance.

Referring to fig. 1 to 3 and 7, a mounting surface 8 surrounding the opening 6 for mounting the sealing member 4 is provided on the case 1, and when the door 2 closes the opening 6, the sealing surface 5 gradually extends obliquely toward the mounting surface 8 in a direction away from the hinge position 7, in other words, the door 2 is obliquely disposed toward the mounting surface 8, so as to effectively cope with deformation of the door 2 after the temperature of the oven 100 rises, and further effectively avoid separation of the sealing surface 5 from the sealing member 4.

Referring to fig. 2, when the door 2 closes the opening 6, the angle α of the sealing surface 5 relative to the mounting surface 8 is between 0.05 ° and 0.8 °, in other words, the angle α of the inner surface of the door 2 having the sealing surface 5 to the mounting surface 8 is between 0.05 ° and 0.8 °.

In other embodiments, the door body 2 extends in the vertical direction, the mounting surface 8 extends in the vertical direction, and the inner surface of the door body 2 having the sealing surface 5 extends from bottom to top gradually and obliquely toward the mounting surface 8, wherein the inclination angle α of the inner surface of the door body 2 relative to the outer surface of the door body is less than or equal to 0.05 °.

Alternatively, with reference to fig. 1 and 7, the cross-section of the seal 4 is a circle with a diameter between 15mm and 26 mm.

Referring to fig. 4 to 6, the sealing surface 5 is annular corresponding to the sealing member 4, the sealing surface 5 is disposed on the door body 2, the door body 2 is provided with a rib 9, the rib 9 is located on the inner side of the sealing surface 5, and the rib 9 is adapted to abut against the periphery of the opening 6.

Optionally, referring to fig. 4, the rib 9 is annular, and the rib 9 abuts against the periphery of the opening 6 to achieve a certain sealing effect, so as to prevent the sealing element 4 from being damaged by the high temperature inside the oven 100, thereby improving the reliability of the oven 100.

Referring to fig. 7 and 8, the sealing member 4 includes a sealing ring 10 and a connecting member 11, the connecting member 11 is connected to the sealing ring 10, a clamping hole 12 is formed around the opening 6, and the connecting member 11 is clamped to the clamping hole 12.

Referring to fig. 8, the connecting member 11 may be an expansion buckle, one end of the connecting member 11 is connected to the sealing ring 10, the other end of the connecting member 11 is clamped into the clamping hole 12, the clamping hole 12 is disposed on the box body 1 around the opening 6, and the other end of the connecting member 11 is sufficiently clamped with the peripheral wall of the clamping hole 12, so that reliable connection between the sealing ring 10 and the box body 1 is realized, and the expansion buckle is simple in structure and easy to realize.

Alternatively, referring to fig. 1 and 7, the seal ring 10 is a hollow tubular structure.

In summary, the oven 100 according to the embodiment of the present invention has the advantages of high sealing performance, reliable and stable structure, easy implementation, and low improvement cost, compared with the conventional technology.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims

1. An oven, comprising:

a cabinet in which a cooking cavity having an opening is formed;

the door body is hinged with the box body and can rotate between the positions for opening and closing the opening,

one of the box body and the door body is provided with a sealing piece, the other one of the box body and the door body is provided with a sealing surface, when the door body closes the opening, the sealing piece surrounds the opening, the sealing surface abuts against the sealing piece, and the compression amount of one end of the sealing surface, which is far away from the hinge joint position of the door body and the box body, on the sealing piece is larger than that of one end of the sealing surface, which is close to the hinge joint position, on the sealing piece.

2. The oven of claim 1, wherein said door closes said opening by a difference between an amount of compression of said seal by an end of said seal surface proximate said hinge location and an amount of compression of said seal by an end of said seal surface distal from said hinge location of between 1.5mm and 4.0 mm.

3. The oven of claim 1 wherein said door closes said opening such that an end of said sealing surface remote from said hinge point compresses said seal by between 1mm and 8 mm.

4. The oven of claim 1, wherein said door closes said opening with a compression ratio of said sealing surface to said seal of between 5% and 45%.

5. The oven of claim 1 wherein an end of said sealing surface proximate said hinge location is at a lesser height relative to said outside of said enclosure than an end of said sealing surface distal said hinge location.

6. The oven of claim 5, wherein a difference in height between an end of said sealing surface proximate said hinge location relative to a height of said outside of said enclosure and an end of said sealing surface distal said hinge location relative to a height of said outside of said enclosure is between 1.5mm and 4.0 mm.

7. The oven of claim 1 wherein said body defines a mounting surface surrounding said opening for receiving a seal, said door closing said opening and said sealing surface extending gradually and obliquely toward said mounting surface in a direction away from said hinge location.

8. The toaster according to claim 7, wherein said door closes said opening such that said sealing surface is inclined at an angle of between 0.5 ° and 0.8 ° relative to said mounting surface.

9. The oven of claim 1, wherein the seal is circular in cross-section with a diameter between 15mm and 26 mm.

10. An oven as claimed in any one of claims 1 to 9 wherein said sealing surface is annular in shape to correspond to said seal, said sealing surface is provided on said door and said door is provided with a rib, said rib being located inwardly of said sealing surface, said rib being adapted to abut the periphery of said opening.

11. An oven as claimed in any one of claims 1 to 9 wherein said seal comprises:

a seal ring;

a connector connected with the sealing ring,

wherein, locate the card hole around the opening, the connecting piece with card hole joint.

12. The oven of claim 11, wherein said gasket is a hollow tubular structure.