Sealing ring structure and cooking device

Abstract

The utility model provides a sealing ring structure and a cooking device, and relates to the technical field of cooking utensils. The sealing ring structure comprises a sealing ring and an annular lip edge, the outer edge of the lip edge is fixed to one side of the sealing ring, and the lip edge extends in the circumferential direction of the sealing ring. An included angle is formed between the lip edge and the sealing ring, the side face, forming an obtuse angle with the sealing ring, of the lip edge is used for abutting against an external object, a plurality of protrusions are arranged on the side face, forming an acute angle with the sealing ring, of the lip edge, and the protrusions are sequentially distributed in the circumferential direction of the lip edge. According to the sealing ring structure, the uniform thin-wall structure of the lip edge can be effectively damaged by arranging the protrusions on the lip edge, when high-temperature gas overflows between a door body and other external objects of the cooking utensil and the lip edge, resonance caused by high-speed vibration of the lip edge due to gas flow can be effectively prevented, and then the squeal phenomenon is avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of cooking utensils, in particular to a sealing ring structure and a cooking device. Background Art

[0002] The glass inside the door of a cooking appliance like a steam oven requires a seal made of a soft material like silicone to seal the cooking cavity. Specifically, the seal is fixed to the door opening of the cooking appliance, and the side that contacts the glass inside the door is equipped with a thin, uniform lip. This uniform lip structure allows the seal to be compressed with minimal force when the door is closed, achieving an effective seal.

[0003] However, after a cooker has been used in high-temperature functions (such as baking) for a period of time, the sealing ring material becomes softer under high temperature conditions. If the user opens or closes the door at this time, the hot gases in the cooking chamber will be compressed when the door closes, allowing them to escape through the exhaust holes in the cooking chamber and the weak points of the sealing ring (i.e., the lip structure). When the high-speed escaping gas passes through the thin lip where the sealing ring contacts the door, it can create a gap between the sealing lip and the glass inside the door. The rapid airflow through this gap causes the lip structure to vibrate, resulting in a whistling sound that can cause discomfort to the user. Utility Model Content

[0004] The purpose of the present utility model is to provide a sealing ring structure and a cooking device to alleviate the technical problem in the prior art that when the door of the cooking appliance after using the high-temperature function is opened and closed, the high-speed escaping gas in the cooking cavity passes through the gap between the lip structure and the door body, thereby causing the lip structure to vibrate and produce howling.

[0005] In a first aspect, the present invention provides a sealing ring structure, comprising a sealing ring and an annular lip;

[0006] The outer edge of the lip is fixed to one side of the sealing ring, and the lip extends along the circumference of the sealing ring;

[0007] The lip is set at an angle to the sealing ring, and the side of the lip set at an obtuse angle to the sealing ring is used to abut against external objects. The side of the lip set at an acute angle to the sealing ring is provided with multiple protrusions, and the multiple protrusions are distributed in sequence along the circumference of the lip.

[0008] In an optional embodiment, the lip includes a first semi-ring body and a second semi-ring body, the first semi-ring body and the second semi-ring body are butted together to form the lip, and the first semi-ring body is located above the second semi-ring body when the sealing ring is installed at the door of the cooking appliance;

[0009] At least the first semi-ring body is provided with a plurality of protrusions.

[0010] In an optional embodiment, the plurality of protrusions are distributed at equal intervals along the circumference of the lip.

[0011] In an optional embodiment, the distance between any two adjacent protrusions is less than 20 mm.

[0012] In an optional embodiment, the lip includes an inner lip and an outer lip;

[0013] The outer edge of the outer ring lip is fixed to one side of the sealing ring, the outer edge of the inner ring lip is fixedly connected to the inner edge of the outer ring lip, and the inner ring lip is used to interference fit between the outer ring lip and the external object when the lip abuts against the external object.

[0014] In an optional embodiment, the plurality of protrusions are provided on the outer ring lip, and the edge of each protrusion intersects with the outer edge of the inner ring lip.

[0015] In an optional embodiment, the vertical distance between the outer edge and the inner edge of the inner ring lip is smaller than the straight-line distance between the outer edge and the inner edge of the inner ring lip.

[0016] In an optional embodiment, the thickness of the protrusion is greater than the thickness of the lip.

[0017] In an optional embodiment, the protrusion is in a strip shape, and the protrusion extends from the outer edge of the lip toward the inner edge of the lip.

[0018] In a second aspect, the present invention provides a cooking device comprising the sealing ring structure described in any one of the aforementioned embodiments.

[0019] The present invention provides a sealing ring structure comprising a sealing ring and an annular lip. The outer edge of the lip is fixed to one side of the sealing ring and extends along the circumference of the sealing ring. The lip is arranged at an angle with the sealing ring, and the side of the lip arranged at an obtuse angle with the sealing ring is designed to abut against external objects. The side of the lip arranged at an acute angle with the sealing ring is provided with multiple protrusions, which are distributed sequentially along the circumference of the lip. The sealing ring structure provided by the present invention can be used between the door and door body of a cooking appliance such as a steam-bake combination oven to seal the gap between the door and the door body. Specifically, the sealing ring extends along the circumference of the cooking appliance door and is fixed to the door frame around the door. The lip is located on the side of the sealing ring closest to the door body. In this case, the cooking appliance door body represents the external object. When the cooking appliance door body is closed, the inner side of the door body contacts and compresses the side of the lip arranged at an obtuse angle with the sealing ring. This causes the side of the lip arranged at an acute angle with the sealing ring to contact and compress the sealing ring, thereby effectively sealing the gap between the door body and the door body. In order to effectively exert the sealing effect of the sealing ring structure and prevent the door closing process from being affected, the lip needs to adopt a thin-walled structure. Therefore, when the cooking appliance uses a high-temperature function (such as a baking function) for a period of time, the sealing ring structure made of soft materials such as silicone will become softer. If the cooking appliance is opened and closed for a short time at this time, the high-temperature gas in the cooking cavity of the cooking appliance will be compressed due to the closing of the door, and then escape from the weak point of the sealing ring structure, that is, from the gap between the lip and the door. However, since the side of the lip that is set at an acute angle to the sealing ring is provided with multiple protrusions, and the multiple protrusions are distributed in sequence along the circumference of the lip, the thin-walled uniform structure of the lip will be destroyed by the protrusions, making it difficult for the high-speed escaping gas to drive the lip to oscillate at high speed, effectively preventing the lip from resonating and generating howling, and improving the user experience. It should be noted that since the protrusion is arranged on the side of the lip which is arranged at an acute angle to the sealing ring, the protrusion will not affect the sealing effect of the lip. Therefore, the sealing ring structure provided by the utility model can prevent whistling at the lip of the cooking appliance when closing the door without affecting the sealing effect.

[0020] Compared with the prior art, the sealing ring structure provided by the present invention can effectively destroy the uniform thin-wall structure of the lip by arranging multiple protrusions on the lip. When high-temperature gas overflows between the lip and external objects such as the door of the cooking utensil, it can effectively prevent the airflow from causing high-speed vibration of the lip and generating resonance, thereby avoiding the howling phenomenon.

[0021] The cooking device provided by the present invention includes the above-mentioned sealing ring structure, so the cooking device has the same beneficial effects as the above-mentioned sealing ring. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0023] Figure 1 A cross-sectional view of a sealing ring structure and a cooking device provided in an embodiment of the present invention;

[0024] Figure 2 for Figure 1 A magnified schematic diagram of part A in FIG;

[0025] Figure 3 A schematic structural diagram of a sealing ring structure provided in an embodiment of the present utility model;

[0026] Figure 4 for Figure 3 A magnified schematic diagram of part B in FIG.

[0027] Figure 5 Another structural schematic diagram of the sealing ring structure provided by an embodiment of the utility model;

[0028] Figure 6 A schematic diagram of a partial structure of a sealing ring structure provided in an embodiment of the present utility model;

[0029] Figure 7 A partial cross-sectional view of the sealing ring structure provided by an embodiment of the present utility model;

[0030] Figure 8 A partial cross-sectional view of a sealing ring structure and a cooking device provided in an embodiment of the present invention;

[0031] Figure 9 Another partial cross-sectional view of the sealing ring structure and cooking device provided by an embodiment of the present invention;

[0032] Figure 10 Another partial cross-sectional view of the sealing ring structure provided in an embodiment of the present utility model.

[0033] Icons: 1-sealing ring; 10-outer edge; 11-inner edge; 12-hook; 2-lip; 20-protrusion; 21-first half of the ring; 22-second half of the ring; 23-inner lip; 24-outer lip; 3-cooking utensil; 30-door. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0036] The following embodiments of the present invention are described in detail with reference to the accompanying drawings. In the absence of conflict, the following embodiments and features in the embodiments may be combined with each other.

[0037] Example:

[0038] like Figures 1-8 As shown, the sealing ring structure provided in this embodiment includes a sealing ring 1 and an annular lip 2; the outer edge of the lip 2 is fixed to one side of the sealing ring 1, and the lip 2 extends along the circumference of the sealing ring 1; the lip 2 is set at an angle to the sealing ring 1, and the side of the lip 2 set at an obtuse angle to the sealing ring 1 is used to abut against an external object, and the side of the lip 2 set at an acute angle to the sealing ring 1 is provided with a plurality of protrusions 20, and the plurality of protrusions 20 are distributed in sequence along the circumference of the lip 2.

[0039] like Figure 1 、 Figure 2 and Figure 8 As shown, the sealing ring structure provided in this embodiment can be applied between the doorway and the door body 30 of a cooking appliance 3, such as a steam-bake combination appliance, to seal the gap between the doorway and the door body 30. Specifically, the cooking appliance 3 typically has a cooking cavity, and a doorway is formed on the side wall of the cooking appliance 3, communicating with the cooking cavity, with the door body 30 hingedly connected to the doorway. To facilitate observation of the cooking process in the cooking cavity, the door body 30 is typically provided with a transparent window inlaid with glass. In addition, the sealing ring 1 is fixed to the door frame along the circumference of the doorway, and the lip 2 is located on the side of the sealing ring 1 closest to the door body 30, facing the glass inner wall of the door body 30. In this case, the door body 30 of the cooking appliance 3 is an external object.

[0040] When the door body 30 of the cooking utensil 3 is closed, the inner glass of the door body 30 will contact and squeeze the side of the lip 2 and the sealing ring 1 which are set at an obtuse angle, and then make the side of the lip 2 and the sealing ring 1 which are set at an acute angle contact and squeeze the sealing ring 1, thereby achieving effective sealing of the gap between the door body 30 and the door opening.

[0041] In order to effectively exert the sealing effect of the sealing ring structure and prevent the closing process of the door body 30 from being affected, the lip 2 needs to adopt a thin-walled structure.

[0042] Therefore, when the cooking utensil 3 uses a high-temperature function (such as a baking function) for a period of time, the sealing ring structure made of soft materials such as silicone will become softer. If the cooking utensil 3 is opened and closed for a short time at this time, the high-temperature gas in the cooking cavity of the cooking utensil 3 will be compressed due to closing the door, and then escape from the weak point of the sealing ring structure, that is, escape from the gap between the lip 2 and the door body 30.

[0043] However, since the side surface of the lip 2 which is set at an acute angle to the sealing ring 1 is provided with multiple protrusions 20, and the multiple protrusions 20 are distributed in sequence along the circumference of the lip 2, the thin-walled uniform structure of the lip 2 will be destroyed by the protrusions 20, making it difficult for the high-speed escaping gas to drive the lip 2 to oscillate at high speed, effectively preventing the lip 2 from resonating and generating howling, thereby improving the user experience.

[0044] It should be noted that since the protrusion 20 is arranged on the side of the lip 2 which is arranged at an acute angle to the sealing ring 1, the protrusion 20 will not affect the sealing effect of the lip 2. Therefore, the sealing ring structure provided in this embodiment can prevent the lip 2 from whistling when the cooking utensil 3 is closed without affecting the sealing effect.

[0045] Compared with the prior art, the sealing ring structure provided in this embodiment can effectively destroy the uniform thin-wall structure of the lip 2 by arranging multiple protrusions 20 on the lip 2. When high-temperature gas overflows between an external object such as the door body 30 of the cooking utensil 3 and the lip 2, it can effectively prevent the airflow from causing the lip 2 to vibrate at high speed and generate resonance, thereby avoiding the howling phenomenon.

[0046] In this embodiment, if Figure 2 and Figure 8 As shown, a ring-shaped groove extending along the circumference of the doorway is provided on the door frame of the cooking utensil 3 , and the sealing ring 1 is installed in the groove, and the lip 2 is exposed outside the groove.

[0047] The groove is used to improve the installation stability of the sealing ring 1 on the cooking utensil 3.

[0048] Further, such as Figure 7As shown, the sealing ring 1 is provided with an annular outer edge portion 10 and an annular inner edge portion 11 at the position corresponding to the notch of the groove, and the outer edge portion 10 and the inner edge portion 11 are respectively located on the two opposite sides of the position of the sealing ring 1; the outer edge portion 10 and the inner edge portion 11 both extend toward the bottom of the groove, and the outer edge portion 10 and the inner edge portion 11 are respectively used to fit on the door frame side walls on both sides of the groove to improve the installation stability of the sealing ring 1 in the groove.

[0049] like Figure 7 As shown, a hook portion 12 may be further provided on the side wall of the sealing ring 1 in contact with the groove. The hook portion 12 is used to achieve an interference fit between the sealing ring 1 and the groove to further improve the installation stability of the sealing ring 1 in the groove.

[0050] like Figure 1 、 Figure 3 and Figure 5 As shown, the lip 2 includes a first half ring 21 and a second half ring 22, which are connected to form the lip 2, and the first half ring 21 is located above the second half ring 22 when the sealing ring 1 is installed at the door of the cooking utensil 3; Figure 4 and Figure 6 As shown, at least the first half ring body 21 is provided with a plurality of protrusions 20 .

[0051] Since the whistling when the door 30 of the cooking appliance 3 is closed is caused by the overflow of high-temperature gas, and the high-temperature gas is steam, and the steam usually flows upward, the whistling between the sealing ring structure and the door body 30 usually occurs between the upper lip 2 and the upper door body 30, that is, the whistling usually occurs between the first half ring body 21 and the door body 30.

[0052] Therefore, if Figure 3 、 Figure 5 and Figure 6 As shown, it is only necessary to provide a plurality of protrusions 20 on the first half ring body 21 to prevent the lip 2 from resonating and generating howling.

[0053] It should be noted that if multiple protrusions 20 are provided only on the first semi-ring body 21, when the sealing ring structure is assembled on the cooking utensil 3, the positions of the first semi-ring body 21 and the second semi-ring body 22 must be clearly defined so that the protrusions 20 are located on the upper lip 2, thereby increasing the assembly complexity and reducing the assembly efficiency.

[0054] In order to solve the problem of reduced assembly efficiency, multiple protrusions 20 can be provided on the first semi-ring body 21 and the second semi-ring body 22 respectively. Based on this, when the sealing ring structure is assembled on the cooking utensil 3, there is no need to distinguish the positions of the first semi-ring body 21 and the second semi-ring body 22, and the protrusions 20 can be evenly distributed on the upper lip 2.

[0055] In this embodiment, the plurality of protrusions 20 are distributed at equal intervals along the circumference of the lip 2 .

[0056] When the plurality of protrusions 20 are distributed at equal intervals, the protrusions 20 can be evenly distributed on the lip 2 , thereby improving the anti-howling effect of the protrusions 20 .

[0057] like Figure 5 As shown, the distance between any two adjacent protrusions 20 is marked as L1, and L1 is less than 20 mm.

[0058] When L1 is less than 20 mm, it can be effectively ensured that the number of protrusions 20 can meet the anti-howling effect, so in this embodiment, L1 is preferably less than 20 mm.

[0059] like Figure 8 and Figure 9 As shown, the lip 2 includes an inner ring lip 23 and an outer ring lip 24; the outer edge of the outer ring lip 24 is fixed to one side of the sealing ring 1, and the outer edge of the inner ring lip 23 is fixedly connected to the inner edge of the outer ring lip 24, and the inner ring lip 23 is used to interference fit between the outer ring lip 24 and the external object when the lip 2 abuts against the external object.

[0060] The outer lip 24 is used to be connected to the sealing ring 1, and the inner lip 23 is used to be squeezed by the door body 30 when the door body 30 of the cooking utensil 3 is closed and interference fit between the outer lip 24 and the door body 30, thereby improving the sealing effect of the sealing ring 1.

[0061] Furthermore, the plurality of protrusions 20 are all provided on the outer ring lip 24 , and the edge of each protrusion 20 intersects with the outer edge of the inner ring lip 23 .

[0062] The edge of the protrusion 20 intersects with the outer edge of the inner ring lip 23, which can prevent the protrusion 20 from affecting the thickness of the lip 2 and affecting the sealing effect, while maximizing the supporting effect of the protrusion 20 on the lip 2, thereby effectively exerting the anti-resonance effect of the protrusion 20 on the lip 2.

[0063] like Figure 8 As shown, the vertical distance between the outer edge and the inner edge of the inner ring lip 23 is recorded as L2. Figure 9 As shown, the straight-line distance between the outer edge and the inner edge of the inner ring lip 23 is recorded as L3, and then L2<L3.

[0064] When L2<L3, it can effectively prevent the inner ring lip 23 from being too narrow and affecting the sealing effect. Therefore, in this embodiment, L2<L3 is preferred.

[0065] Furthermore, in order to prevent the inner lip 23 from being too wide and affecting the closing process of the door body 30, in this embodiment, L3 is preferably less than 3 mm.

[0066] In addition, in order to prevent the thickness of the protrusion 20 from being too small and affecting its anti-resonance effect on the lip 2, in this embodiment, the thickness of the protrusion 20 is preferably greater than the thickness of the lip 2.

[0067] Further, such as Figure 10 As shown, the thickness of the inner ring lip 23 is recorded as D1, and the sum of the thickness of the protrusion 20 and the lip 2 is recorded as D2. In this embodiment, 2×D1<D2 is preferred.

[0068] When 2×D1<D2, the sum of the thickness of the protrusion 20 and the lip 2 is much greater than the thickness of the inner ring lip 23, which can effectively prevent the transmission of vibration on the lip 2 when closing the door, thereby effectively preventing howling from occurring at the lip 2.

[0069] In addition, in order to maximize the sealing effect of the inner ring lip 23 and prevent the inner ring lip 23 from affecting the closing of the door body 30, the thickness of the inner ring lip 23 in this embodiment is preferably less than 1.2 mm.

[0070] In this embodiment, if Figure 4 As shown, the protrusion 20 may be in a strip shape, and the protrusion 20 extends from the outer edge of the lip 2 toward the inner edge of the lip 2 .

[0071] When the protrusion 20 extends from the outer edge of the lip 2 toward the inner edge of the lip 2, the strip structure of the protrusion 20 can be used to enhance the supporting effect of the protrusion 20 on the lip 2, thereby enhancing the anti-resonance effect of the protrusion 20 on the lip 2, effectively avoiding howling at the lip 2.

[0072] This embodiment also provides a cooking device, which includes the above-mentioned sealing ring structure. Therefore, the cooking device and the above-mentioned sealing ring structure can solve the same technical problems and achieve the same technical effects, which will not be repeated here.

[0073] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A sealing ring structure, characterized in that: It comprises a sealing ring (1) and an annular lip (2); The outer edge of the lip (2) is fixed to one side of the sealing ring (1), and the lip (2) extends along the circumference of the sealing ring (1); The lip edge (2) is arranged at an angle with the sealing ring (1), and the side surface of the lip edge (2) arranged at an obtuse angle with the sealing ring (1) is used to abut against an external object. The side surface of the lip edge (2) arranged at an acute angle with the sealing ring (1) is provided with a plurality of protrusions (20), and the plurality of protrusions (20) are distributed in sequence along the circumference of the lip edge (2).

2. The sealing ring structure according to claim 1, characterized in that: The lip (2) comprises a first semi-ring (21) and a second semi-ring (22), wherein the first semi-ring (21) and the second semi-ring (22) are butted together to form the lip (2), and the first semi-ring (21) is located above the second semi-ring (22) when the sealing ring (1) is installed at the door of the cooking utensil (3); At least the first half ring body (21) is provided with a plurality of protrusions (20).

3. The sealing ring structure according to claim 1, characterized in that: The plurality of protrusions (20) are distributed at equal intervals along the circumference of the lip (2).

4. The sealing ring structure according to claim 1, characterized in that: The distance between any two adjacent protrusions (20) is less than 20 mm.

5. The sealing ring structure according to any one of claims 1 to 4, characterized in that: The lip (2) includes an inner lip (23) and an outer lip (24); The outer edge of the outer ring lip (24) is fixed to one side of the sealing ring (1), the outer edge of the inner ring lip (23) is fixedly connected to the inner edge of the outer ring lip (24), and the inner ring lip (23) is used to be interference-fitted between the outer ring lip (24) and the external object when the lip (2) abuts against the external object.

6. The sealing ring structure according to claim 5, characterized in that: The plurality of protrusions (20) are all arranged on the outer ring lip (24), and the edge of each protrusion (20) intersects with the outer edge of the inner ring lip (23).

7. The sealing ring structure according to claim 5, characterized in that: The vertical distance between the outer edge and the inner edge of the inner ring lip (23) is smaller than the linear distance between the outer edge and the inner edge of the inner ring lip (23).

8. The sealing ring structure according to any one of claims 1 to 4, characterized in that: The thickness of the protrusion (20) is greater than the thickness of the lip (2).

9. The sealing ring structure according to any one of claims 1 to 4, characterized in that: The protrusion (20) is in a strip shape, and the protrusion (20) extends from the outer edge of the lip (2) toward the inner edge of the lip (2).

10. A cooking device, characterized in that: The invention comprises the sealing ring structure according to any one of claims 1 to 9.

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