Oven door assembly and cooking utensil
By introducing cross-arranged brackets and insulation parts into the furnace door assembly to form an insulation cavity, and using the gas medium to conduct heat loss, the problem of rapid heat transfer in the furnace door assembly is solved, and the temperature rise rate and fire risk are reduced.
Patent Information
- Application Number
- CN202422575339.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-23
- Publication Date
- 2025-09-16
- Estimated Expiration
- 2034-10-23
AI Technical Summary
The heat generated by the oven door assembly of existing cooking appliances during the cooking process is quickly transferred to the side walls, causing the temperature of wooden furniture to rise rapidly, posing a fire risk.
A furnace door assembly is designed, including a bracket and a thermal insulation member. The thermal insulation member and the bracket are arranged crosswise to form an insulation cavity, which conducts heat loss through a gas medium and reduces the heat transfer rate. The thermal insulation member can be made of heat-resistant materials such as epoxy resin.
It effectively slows down the temperature rise rate of the side wall of the oven door assembly, reduces the transfer of heat to surrounding furniture, reduces the risk of fire, and improves the thermal insulation performance and stability of the oven door assembly.
Smart Images

Figure CN223343905U_ABST
Abstract
Description
Technical Field
[0001] The present application relates to the technical field of cooking utensils, and in particular to an oven door assembly and a cooking utensil. Background Art
[0002] This section is intended to provide a background or context for the embodiments of the present application. No description herein is admitted to be prior art by virtue of its inclusion in this section.
[0003] Cooking appliances are common household appliances in North America, often installed in kitchens with limited space. In related art, cooking appliances typically include an oven door assembly, the sidewalls of which are in close proximity to other furniture. Heat generated by the cooking appliance during cooking is partially transferred to the sidewalls of the oven door assembly, causing a rapid temperature rise. North American consumers mostly use wooden furniture, posing a fire risk. Utility Model Content
[0004] In view of this, embodiments of the present application hope to provide an oven door assembly and a cooking utensil that can slow down the temperature rise rate at the side wall of the oven door assembly and reduce the risk of causing a fire.
[0005] A first aspect of an embodiment of the present application provides a furnace door assembly, comprising:
[0006] Door body;
[0007] a bracket, arranged on a side wall of the door body along a first direction, wherein the first direction is arranged to intersect with the up-down direction and the thickness direction of the door body;
[0008] A heat insulating member is arranged on a side of the bracket away from the door body, and a portion of the heat insulating member is spaced apart from the bracket to form a heat insulating cavity.
[0009] In some embodiments, the thermal insulation member includes an insulation portion and a rib, wherein the rib is connected to a side of the insulation portion close to the bracket, the rib abuts the bracket, and the insulation portion is spaced apart from the bracket to form the insulation cavity.
[0010] In some embodiments, the bracket is formed with a positioning hole, and the thermal insulation component further includes a fixing portion and a fastener forming a limiting hole, the fixing portion is connected to the thermal insulation portion, the fixing portion passes through the positioning hole, and the fastener passes through the limiting hole and the bracket.
[0011] In some embodiments, the thermal insulation member is connected to the upper end of the bracket.
[0012] In some embodiments, the thermal insulation component is formed with a first heat dissipation hole, and the first heat dissipation hole is connected to the thermal insulation cavity.
[0013] In some embodiments, the bracket is formed with a second heat dissipation hole, the second heat dissipation hole is located below the thermal insulation member, and the second heat dissipation hole is spaced apart from the thermal insulation member.
[0014] In some embodiments, the door body is formed with a third heat dissipation hole, and the third heat dissipation hole is located on the side wall of the door body along the thickness direction.
[0015] In some embodiments, the thickness of the thermal insulation element is between 0.6 mm and 0.8 mm.
[0016] In some embodiments, along the first direction, the projection range of the thermal insulation member is located within the projection range of the bracket.
[0017] In some embodiments, the thermal insulation member is a sheet metal structure.
[0018] In some embodiments, the thermal insulation component is an integrally formed structure.
[0019] A second aspect of the present application provides a cooking utensil, comprising:
[0020] a box body, forming a cooking cavity and an inlet and outlet communicating with the cooking cavity, wherein the cooking cavity is used for cooking food;
[0021] In the furnace door assembly described in any of the above items, the door body is rotatably connected to the box body to selectively open or cover the inlet and outlet.
[0022] In the oven door assembly provided by the present invention, the insulation component is separated from the bracket to form an insulating cavity. Heat transferred from the bracket to the insulation component is lost within the insulating cavity, providing insulation and slowing the temperature rise of the insulation component. Furthermore, the temperature of the insulation component is lower than that of the bracket, resulting in a relatively low amount of heat transferred from the sidewalls of the oven door assembly to surrounding furniture, thereby reducing the risk of fire. BRIEF DESCRIPTION OF THE DRAWINGS
[0023] Figure 1 A schematic structural diagram of a furnace door assembly provided in some embodiments of the present application;
[0024] Figure 2 for Figure 1 A schematic diagram of the structure shown in another perspective;
[0025] Figure 3 for Figure 2 Enlarged view of point A in the middle;
[0026] Figure 4 for Figure 1 Exploded view of the structure shown;
[0027] Figure 5 for Figure 4Enlarged view of point B in the middle;
[0028] Figure 6 A schematic structural diagram of a thermal insulation member provided in some embodiments of the present application;
[0029] Figure 7 A schematic structural diagram of a cooking appliance provided in some embodiments of the present application.
[0030] Description of Reference Numerals
[0031] Cooking utensils 1000;
[0032] Furnace door assembly 100;
[0033] Door body 10; third heat dissipation hole 10a;
[0034] Bracket 20; positioning hole 20a; second heat dissipation hole 20b;
[0035] Heat insulation member 30; heat insulation cavity 30a; first heat dissipation hole 30b; heat insulation portion 31; rib 32; fixing portion 33; limiting hole 33a;
[0036] handle 40;
[0037] Box 200. DETAILED DESCRIPTION
[0038] The following embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention.
[0039] The various specific technical features and embodiments described in the specific embodiments can be combined in any suitable manner, unless there is any contradiction. For example, different embodiments can be formed by combining different specific technical features / embodiments. To avoid unnecessary repetition, the various possible combinations of the specific technical features / embodiments in this application will not be described separately. In addition, the terms "first," "second," and "third" are used for descriptive purposes only and should not be understood to indicate or imply relative importance. The application will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.
[0040] To facilitate understanding of the oven door assembly 100 provided in the embodiment of the present application, the cooking utensil 1000 provided in the embodiment of the present application is first described.
[0041] See also Figure 7 An embodiment of the present application provides a cooking appliance 1000, comprising a box body 200 and an oven door assembly 100 in any embodiment of the present application, wherein the box body 200 is formed with a cooking cavity and an inlet and outlet connected to the cooking cavity, and the cooking cavity is used for cooking food; the door body 10 is rotatably connected to the box body 200 to selectively open or cover the inlet and outlet.
[0042] The cooking cavity is used to cook food. To cook food, the user rotates the door 10 to open the entrance and exit. The user can place food into the cooking cavity through the entrance and exit, and then close the entrance and exit to start cooking. After the food is cooked, the user rotates the door 10 to open the entrance and exit, and the user can remove the food from the cooking cavity through the entrance and exit, completing the cooking process.
[0043] Taking the case where the box 200 uses steaming and baking to cook food as an example, during the process of steaming and baking food, a large amount of heat is generated in the cooking cavity, and the heat is transferred to the oven door assembly 100 through a heat conduction medium. For example, heat conduction can be carried out through the cavity wall of the cooking cavity, or through gas. The oven door assembly 100 can discharge the heat transferred from the cooking cavity to the outside.
[0044] The specific type of the cooking appliance 1000 is not limited, and it may be, for example, a stand-alone oven.
[0045] In the related art, a bracket is provided on the side wall of the oven door assembly, and the bracket is formed with a heat dissipation hole to dissipate the heat transferred to the bracket. However, the heat transferred to the bracket is relatively large, and the heat dissipation hole is insufficient to dissipate all the heat, resulting in a rapid temperature rise of the bracket.
[0046] See also Figures 1 to 6 An embodiment of the present application provides a furnace door assembly 100, including a door body 10, a bracket 20 and a thermal insulation member 30, the bracket 20 is arranged on the side wall of the door body 10 along a first direction, and the thermal insulation member 30 is arranged on the side of the bracket 20 away from the door body 10, and a portion of the thermal insulation member 30 is spaced apart from the bracket 20 to form an insulation cavity 30a, wherein the first direction is arranged crosswise with the up and down directions and the thickness direction of the door body 10.
[0047] Cross arrangement means that any two of the first direction, the up-down direction and the thickness direction of the door body 10 intersect and are not coplanar. For example, the first direction, the up-down direction and the thickness direction of the door body 10 are perpendicular to each other and together constitute a three-dimensional vertical coordinate system.
[0048] Heat generated within the cooking chamber can be transferred through the door 10 to the bracket 20, and then to the insulation member 30 through the insulation chamber 30a. It should be understood that the heat transfer medium within the insulation chamber 30a is gas. Specifically, the heat transferred from the bracket 20 to the insulation chamber 30a mixes with the gas within the insulation chamber 30a to form high-temperature gas. This high-temperature gas then flows to the insulation member 30, transferring the entrained heat to the insulation member 30. Compared to solid-phase media, gas-phase media have poorer thermal conductivity. Thus, the heat transferred from the bracket 20 through the insulation chamber 30a to the insulation member 30 is lost during this process. The insulation chamber 30a provides insulation, resulting in a slower temperature rise in the insulation member 30 than in the bracket 20. Consequently, the temperature of the insulation member 30 is lower than that of the bracket 20, and the amount of heat transferred from the sidewalls of the oven door assembly 100 to the surrounding furniture is relatively low, thereby reducing the risk of fire.
[0049] The specific material of the thermal insulation member 30 is not limited. For example, the thermal insulation member 30 can be made of epoxy resin, which has good heat resistance.
[0050] It should be noted that, in the present application, down refers to the direction toward the ground, and up refers to the direction opposite to down.
[0051] In the oven door assembly 100 provided in this embodiment of the present application, a portion of the thermal insulation member 30 is separated from the bracket 20 to form an insulating cavity 30a. Heat transferred from the bracket 20 to the thermal insulation member 30 is lost within the insulating cavity 30a, providing a thermal insulation effect and slowing the temperature rise of the thermal insulation member 30. Furthermore, the temperature of the thermal insulation member 30 is lower than that of the bracket 20, resulting in a relatively low amount of heat transferred from the sidewalls of the oven door assembly 100 to surrounding furniture, thereby reducing the risk of fire.
[0052] In one embodiment, brackets 20 and thermal insulation members 30 are provided on both sidewalls of the door body 10 along the first direction. In other words, thermal insulation cavities 30a are formed on both sides of the door body 10 along the first direction. This improves the thermal insulation performance of the oven door assembly 100 and further reduces the risk of fire.
[0053] For some examples, see Figures 3 to 5 The thermal insulation member 30 includes an insulating portion 31 and a rib 32. The rib 32 connects the side of the insulating portion 31 closest to the bracket 20 and abuts the bracket 20. The insulating portion 31 and the bracket 20 are separated to form an insulating cavity 30a. The rib 32 provides support, preventing the insulating portion 30 and the bracket 20 from being disturbed or displaced by external forces, thereby improving the stability of the insulating portion 30.
[0054] For example, see Figure 6The heat insulating member 30 includes a plurality of convex ribs 32, which are arranged at intervals along the circumference of the heat insulating portion 31. In this way, the stability of the heat insulating member 30 can be further improved.
[0055] For some examples, see Figure 5 and Figure 6 The bracket 20 is formed with a positioning hole 20a, and the thermal insulation member 30 further includes a fixing portion 33 with a limiting hole 33a and a fastener. The fixing portion 33 is connected to the thermal insulation member 31 and extends through the positioning hole 20a. The fastener extends through the limiting hole 33a and the bracket 20. In this way, the positioning hole 20a and the fixing portion 33 together serve as a guide, facilitating assembly of the thermal insulation member 30 and the bracket 20. Furthermore, the fastener can extend through the limiting hole 33a and the bracket 20 in the vertical direction, improving assembly efficiency.
[0056] For example, the fixing portion 33 forms an interference fit with the positioning hole 20a. After the fixing portion 33 is inserted through the positioning hole 20a, the stopper hole 33a and the thermal insulation portion 31 are located on different sides of the bracket 20 along the thickness direction. In other words, the fastener and the thermal insulation portion 31 are located on different sides of the bracket 20 along the thickness direction. In this way, the positioning hole 20a, the fixing portion 33, and the fastener work together to strengthen the connection between the bracket 20 and the thermal insulation member 30, preventing the thermal insulation member 30 and the bracket 20 from being disturbed or displaced by external forces.
[0057] The specific type of the fastener is not limited, and may be, for example, a rivet.
[0058] For some examples, see Figure 1 and Figure 4 , the heat insulation member 30 is connected to the upper end of the bracket 20.
[0059] The upper end of the bracket 20 refers to the top and surrounding areas of the bracket 20. It should be understood that part of the heat in the cooking chamber mixes with gases such as air to form high-temperature gas, and the density of high-temperature gas is relatively low. Therefore, the high-temperature gas mainly gathers at the upper end of the cooking chamber. In other words, more heat is transferred from the upper end of the cooking chamber to the bracket 20, resulting in a higher temperature at the upper end of the bracket 20 and a lower temperature at the lower end of the bracket 20. In this way, connecting the thermal insulation member 30 to the upper end of the bracket 20 can, on the one hand, reduce the amount of heat transferred from the upper end of the bracket 20 to the outside through the thermal insulation cavity 30a, thereby reducing the risk of fire. On the other hand, in areas with relatively low temperatures, such as the lower end of the bracket 20, the thermal insulation member 30 may not be provided, thereby reducing production costs.
[0060] It should be noted that the lower end of the bracket 20 is the side opposite to the upper end of the bracket 20 , that is, the lower end of the bracket 20 refers to the bottom and surrounding parts of the bracket 20 .
[0061] For some examples, see Figure 1 and Figure 3 The thermal insulation member 30 is formed with a first heat dissipation hole 30b, which communicates with the thermal insulation chamber 30a. The thermal insulation chamber 30a is connected to the outside atmosphere through the first heat dissipation hole 30b. Thus, high-temperature gas in the thermal insulation chamber 30a can flow to the outside through the first heat dissipation hole 30b. Normal-temperature gas from the outside can enter the thermal insulation chamber 30a through the first heat dissipation hole 30b. The normal-temperature gas absorbs heat and becomes high-temperature gas, which can then flow to the outside through the first heat dissipation hole 30b again. This reciprocating process prevents high-temperature gas from condensing in the thermal insulation chamber 30a, achieving a good heat dissipation effect.
[0062] For some examples, see Figure 1 and Figure 4 The bracket 20 is formed with a second heat dissipation hole 20b. The second heat dissipation hole 20b is located below the thermal insulation member 30 and is spaced apart from the thermal insulation member 30. In other words, the second heat dissipation hole 20b is located at the lower end of the bracket 20. This allows some heat from the lower end of the bracket 20 to be dissipated outward through the second heat dissipation hole 20b. The spacing of the second heat dissipation hole 20b from the thermal insulation member 30 prevents the thermal insulation member 30 from blocking the second heat dissipation hole 20b, thereby improving the heat dissipation efficiency of the oven door assembly 100.
[0063] For some examples, see Figure 1 The door body 10 is formed with third heat dissipation holes 10a, located on the sidewall of the door body 10 along its thickness. In other words, the third heat dissipation holes 10a, the bracket 20, and the thermal insulation 30 are located on different sidewalls of the door body 10. This allows some of the heat generated within the cooking cavity to be discharged through the third heat dissipation holes 10a. This improves the heat dissipation efficiency of the oven door assembly 100. It also reduces the amount of heat transferred to the bracket 20, preventing the bracket 20 and the thermal insulation 30 from heating too quickly and reducing the risk of fire.
[0064] For example, please see Figure 1 The door body 10 is formed with a plurality of third heat dissipation holes 10a, which are spaced apart at the upper end of the door body 10. It is understood that a relatively large amount of heat is transferred from the cooking cavity to the upper end of the oven door. Providing a plurality of third heat dissipation holes 10a in this location can further improve the heat dissipation efficiency of the oven door assembly 100.
[0065] It should be noted that the upper end of the door body 10 refers to the top and surrounding parts of the door body 10 .
[0066] In some embodiments, the thickness of the thermal insulation member 30 is between 0.6 mm and 0.8 mm. For example, the thickness of the thermal insulation member 30 can be 0.6 mm, 0.65 mm, 0.7 mm, 0.75 mm, or 0.8 mm.
[0067] For some examples, see Figure 2 and Figure 3 Along the first direction, the projection of the thermal insulation 30 lies within the projection of the bracket 20. In other words, the thermal insulation 30 does not protrude beyond the bracket 20 in the vertical direction or through the thickness of the door body 10. This prevents users from accidentally touching the thermal insulation 30 or damaging it by contact with other structures. Furthermore, in the first direction, the bracket 20 shields the thermal insulation 30, enhancing the aesthetics of the oven door assembly 100.
[0068] In some embodiments, the thermal insulation member 30 is a sheet metal structure, that is, the thermal insulation member 30 can be made of metal material, which has high structural strength and is not easily damaged.
[0069] In some embodiments, the thermal insulation member 30 is an integrally formed structure. For example, the thermal insulation member 30 can be an integral structure formed by injection molding, compression molding, or other processes to reduce production costs.
[0070] For some examples, see Figure 1 and Figure 7 The oven door assembly 100 further includes a handle 40 disposed on the door body 10. The handle 40 is located on a side of the door body 10 away from the box body 200. The handle 40 provides a gripping space, and the user can grip the handle 40 to rotate the door body 10, which is convenient and quick.
[0071] In the description of this specification, the reference terms "one embodiment", "some embodiments" and "exemplary" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and features of different embodiments or examples without contradiction.
[0072] The various embodiments / implementations provided in this application can be combined with each other without causing any contradiction. The above description is only a preferred embodiment of this application and is not intended to limit this application. For those skilled in the art, this application may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of this application shall be included in the scope of protection of this application.
Claims
1. A furnace door assembly, characterized in that: include: Door body; a bracket, arranged on a side wall of the door body along a first direction, wherein the first direction is arranged to intersect with the up-down direction and the thickness direction of the door body; A heat insulating member is arranged on a side of the bracket away from the door body, and a portion of the heat insulating member is spaced apart from the bracket to form a heat insulating cavity.
2. The furnace door assembly according to claim 1, characterized in that The heat insulating member includes a heat insulating portion and a convex rib, wherein the convex rib is connected to a side of the heat insulating portion close to the bracket, the convex rib abuts the bracket, and the heat insulating portion is spaced from the bracket to form the heat insulating cavity.
3. The furnace door assembly according to claim 2, characterized in that The bracket is formed with a positioning hole, and the thermal insulation component further includes a fixing portion and a fastener forming a limiting hole. The fixing portion is connected to the thermal insulation component, the fixing portion passes through the positioning hole, and the fastener passes through the limiting hole and the bracket.
4. The furnace door assembly according to claim 1, characterized in that The heat insulating member is connected to the upper end of the bracket.
5. The furnace door assembly according to claim 1, characterized in that The heat insulating member is formed with a first heat dissipation hole, and the first heat dissipation hole is connected to the heat insulating cavity.
6. The furnace door assembly according to claim 1, characterized in that The bracket is formed with a second heat dissipation hole, the second heat dissipation hole is located below the heat insulation component, and the second heat dissipation hole is spaced apart from the heat insulation component.
7. The furnace door assembly according to claim 1, characterized in that The door body is formed with a third heat dissipation hole, and the third heat dissipation hole is located on the side wall of the door body along the thickness direction.
8. The furnace door assembly according to claim 1, characterized in that The thickness of the thermal insulation element is between 0.6 mm and 0.8 mm.
9. The furnace door assembly according to claim 1, characterized in that Along the first direction, the projection range of the thermal insulation member is located within the projection range of the bracket.
10. The furnace door assembly according to any one of claims 1 to 9, characterized in that: The thermal insulation member is a sheet metal structure; and / or, The heat insulating component is an integrally formed structure.
11. A cooking utensil, characterized in that: include: The box is formed with a cooking cavity and an inlet and outlet communicating with the cooking cavity, and the cooking cavity is used to cook food ; The furnace door assembly according to any one of claims 1 to 10, wherein the door body is rotatably connected to the box body to selectively open or cover the inlet and outlet.