Electric oven

Abstract

The utility model relates to an electric oven which comprises a shell, a baking tray arranged on the shell, a heating element arranged in the shell, a heat insulation piece and a supporting plate. The heat insulation piece is arranged in the shell, and a ventilation opening is formed in the heat insulation piece; the supporting plate is arranged between the baking tray and the heat insulation part, and the heating element is arranged between the baking tray and the supporting plate; wherein the shell is provided with an air inlet, and the air inlet is communicated with the ventilation opening; the supporting plate extends in the circumferential direction to be provided with supporting parts, the supporting parts abut against the heat insulation piece, and gaps between the adjacent supporting parts form air outlets. The air channel is formed among the shell, the heat insulation piece and the supporting plate, heat is taken away by airflow flowing in the air channel, and the temperature of the shell is reduced.

Description

Technical Field

[0001] The utility model relates to the field of kitchen appliances, in particular to an electric oven. Background Art

[0002] An electric oven is a kitchen device that uses electric energy for heating and performs functions such as baking, roasting meat, and roasting vegetables.

[0003] The electric oven generates heat through heating elements and evenly transfers the heat to the food, thereby realizing functions such as baking, roasting meat, and roasting vegetables. When the heating elements generate heat, in addition to being transferred to the baking tray to heat the food ingredients, the heat will also be radiated to the outer shell of the electric oven, causing the temperature of the outer shell to continuously rise, posing a safety hazard and affecting the comfort of use. Excessive temperature of the outer shell will also affect the service life of the internal components of the electric oven.

[0004] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present disclosure, and thus may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Utility Model

[0005] Aiming at the shortcomings of the above-mentioned prior art, the purpose of the present utility model is to provide an electric oven to reduce the temperature of its outer shell during the working process of the electric oven.

[0006] The technical solution of the present utility model is as follows:

[0007] An electric oven includes an outer shell, a baking tray disposed on the outer shell, and a heating element disposed inside the outer shell, and includes: a heat insulation member disposed inside the outer shell, and a ventilation opening is formed on the heat insulation member; a support plate disposed between the baking tray and the heat insulation member, and the heating element is disposed between the baking tray and the support plate; wherein, an air inlet is formed on the outer shell, and the air inlet communicates with the ventilation opening; a support portion is circumferentially extended on the support plate, the support portion abuts against the heat insulation member, and a gap between adjacent support portions forms an air outlet.

[0008] In a further technical solution thereof, a heating cavity is formed by a depression in the middle of the heat insulation member, and the support plate and the baking tray are disposed at the heating cavity; the support portion contacts the side wall of the heating cavity.

[0009] In a further technical solution thereof, the outer edge of the support plate extends upward to form a vertical surface, the support portion is disposed on the vertical surface, and a gap is formed between the vertical surface and the side wall of the heating cavity.

[0010] In a further technical solution thereof, a first flanging is extended outward from the outer edge of the heat insulation member, and the first flanging contacts the upper part of the outer shell.

[0011] A further technical solution is that a supporting protrusion is provided on the supporting plate to support the baking tray; a second flanging is provided on the outer edge of the baking tray and extends outwards, and a gap is left between the first flanging and the second flanging.

[0012] A further technical solution is that a threaded boss is provided on the upper surface of the heat insulation member, the lower surface of the supporting plate contacts the threaded boss, and a connection hole is provided on the supporting plate to align with the threaded boss.

[0013] A further technical solution is that a protective cover is further provided inside the outer shell, the protective cover covers the air inlet, and through holes are provided on the side surface of the protective cover.

[0014] A further technical solution is that the supporting plate is made of metal material.

[0015] A further technical solution is that it further includes electronic components, and the heating element is electrically connected to the electronic components.

[0016] A further technical solution is that the heating element passes through the supporting plate and the heat insulation member and is electrically connected to the electronic components.

[0017] The beneficial technical effects of the present utility model are as follows:

[0018] (1) In the electric oven of the present utility model, a heat insulation member and a supporting plate are provided between the heating element and the outer shell. An air inlet is provided on the outer shell, a ventilation opening is provided on the heat insulation member, and an air outlet is provided on the supporting part. At the same time, the supporting plate is arranged on the heat insulation member through the supporting part, that is, a gap is formed between the supporting plate and the heat insulation member, so that the ventilation opening and the air outlet are communicated, and an air duct is formed between the air inlet, the ventilation opening and the air outlet. The air flow flows in the air duct to take away heat and reduce the temperature of the outer shell.

[0019] (2) Further, the middle part of the heat insulation member is recessed to form a heating cavity, and the supporting plate and the baking tray are arranged at the heating cavity, so that the supporting plate and the baking tray are fixed more stably.

[0020] (3) Further, the outer edge of the supporting plate extends upwards to form a vertical surface, and at this time the air outlet is at the outer edge of the vertical surface. The air flow between the supporting plate and the heat insulation member flows through the vertical surface and then flows out from the air outlet. The vertical surface increases the contact area between the supporting plate and the air flow, thereby enhancing the heat dissipation effect of the supporting plate. Description of the Drawings

[0021] Figure 1 Shows an exploded structural schematic diagram of the electric oven of the present utility model.

[0022] Figure 2 Shows a sectional structural schematic diagram of the electric oven of the present utility model.

[0023] Figure 3 Shows a three-dimensional structural schematic diagram of the heat insulation member and the support plate in the electric oven of the present utility model.

[0024] Figure 4 Shows a partial enlarged view of the electric oven of the present utility model at A.

[0025] Reference signs in the drawings:

[0026] 1. Outer shell; 11. Air inlet; 12. Protective cover; 2. Heat insulation member; 21. Vent; 22. First flanging; 23. Threaded boss; 24. Heating cavity; 3. Support plate; 31. Support portion; 32. Air outlet; 33. Connecting hole; 34. Support protrusion; 35. Vertical surface; 4. Heating element; 5. Baking tray; 51. Second flanging. Detailed implementation manners

[0027] In order to make the objectives, features, and advantages of the present utility model more obvious and understandable, please refer to the accompanying drawings. It should be noted that the structures, ratios, sizes, etc. shown in the drawings of this specification are only used to cooperate with the content disclosed in the specification for those who are familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present utility model. Therefore, they do not have any technical substance. Any modification of the structure, change in the proportional relationship, or adjustment of the size, without affecting the effects that the present utility model can produce and the objectives that can be achieved, should still fall within the scope covered by the technical content disclosed in the present utility model.

[0028] In the description of the present utility model, the defined terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. This is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.

[0029] Figure 1 Shows an exploded structural schematic diagram of the electric oven of the present utility model. Figure 2 Shows a sectional structural schematic diagram of the electric oven of the present utility model. Figure 3 Shows a three-dimensional structural schematic diagram of the heat insulation member 2 and the support plate 3 in the electric oven of the present utility model. Please refer to Figure 1 、 Figure 2 and Figure 3, an electric oven, comprising a housing 1, a baking tray 5 provided on the housing 1, and a heating element 4 provided in the housing 1, further comprising a heat insulation member 2 and a support plate 3. The heating element 4 can be an electric heating wire, an electric heating film, a metal heat pipe or a quartz heat pipe, etc., which are heating elements 4 known to those skilled in the art. The heat insulation member 2 is provided in the housing 1, and a ventilation opening 21 is formed on the heat insulation member 2. The support plate 3 is provided between the baking tray 5 and the heat insulation member 2, and a gap is formed between the support plate 3 and the heat insulation member 2 to facilitate gas flow. The heating element 4 is provided between the baking tray 5 and the support plate 3. Among them, an air inlet 11 is formed on the housing 1, and the air inlet 11 communicates with the ventilation opening 21. The support plate 3 is circumferentially extended with a support portion 31, and the support portion 31 abuts against the heat insulation member 2. The gap between adjacent support portions 31 forms an air outlet 32, and the air outlet 32 communicates with the ventilation opening 21 through the gap between the support plate 3 and the heat insulation member 2. The gas flows through the air inlet 11, the ventilation opening 21 and the air outlet 32 to form an air duct. When the air flow flows in the air duct, it passes through the housing 1, the heat insulation member 2 and the support plate 3. The flowing air flow directly cools the housing 1, and at the same time reduces the heat on the heat insulation member 2 and the support plate 3, reduces the heat transferred from the heat insulation member 2 and the support plate 3 to the housing 1, and further reduces the temperature of the housing 1.

[0030] The specific structure of the heat insulation member 2 is described as follows:

[0031] Please refer to Figure 2 , a heating cavity 24 is formed by the middle part of the heat insulation member 2 being sunken, and the support plate 3 and the baking tray 5 are provided at the heating cavity 24. Specifically, the support plate 3 is inside the heating cavity 24, and the middle position of the baking tray 5 is inside the heating cavity 24. With this sunken design, the side wall of the heating cavity 24 can limit the horizontal movement of the support plate 3 and the baking tray 5, and increase the structural stability of the support plate 3 and the baking tray 5. Among them, the support portion 31 contacts the side wall of the heating cavity 24 to fix the support plate 3 on the heat insulation member 2.

[0032] Please refer to Figure 2 and Figure 3 , a first flanging 22 is extended outward from the outer edge of the heat insulation member 2, and the first flanging 22 contacts the upper part of the housing 1. The first flanging 22 bears the weight of the heat insulation member 2 and fixes the heat insulation member 2 on the housing 1. With this setting, the heat insulation member 2 can be fixed on the housing 1 by relying on the first flanging 22. The contact area between the heat insulation member 2 and the housing 1 is small, and the heat conduction speed is low. At the same time, a gap is formed between the heat insulation member 2 and the housing 1 to facilitate the air flow to take away heat.

[0033] Please refer to Figure 3, a threaded boss 23 is provided on the upper surface of the heat insulation member 2. The lower surface of the support plate 3 contacts the threaded boss 23, and a connection hole 33 is provided on the support plate 3 to align with the threaded boss 23. The support plate 3 is supported by the threaded boss 23, reducing the contact area between the support plate 3 and the heat insulation member 2 and forming a gap between the support plate 3 and the heat insulation member 2. While reducing the heat conduction efficiency, it facilitates the flow of air to carry away heat.

[0034] The specific structure of the support plate 3 is described as follows:

[0035] Please refer to Figure 2 and Figure 3 , the outer edge of the support plate 3 extends upward to form a vertical surface 35, and the support portion 31 is provided on the vertical surface 35. A gap is formed between the vertical surface 35 and the side wall of the heating cavity 24. The air flow flowing from the ventilation opening 21 to the air outlet 32 will flow through the gap between the vertical surface 35 and the heat insulation member 2, increasing the contact area between the air flow and the support plate 3, and between the air flow and the heat insulation member 2, further reducing the heat of the heat insulation member 2 and the support plate 3.

[0036] Please refer to Figure 2 and Figure 3 , the support plate 3 is provided with a support protrusion 34 to support the baking tray 5, so as to form a gap between the support plate 3 and the baking tray 5. The contact area between the support plate 3 and the baking tray 5 is reduced, and the heat transfer efficiency is reduced. The outer edge of the baking tray 5 extends outward to be provided with a second flanging 51, and a gap is left between the first flanging 22 and the second flanging 51. The second flanging 51 shields the air outlet 32, reducing foreign matters entering the air outlet 32. Among them, the support plate 3 can be made of a metal material. The metal material has good thermal conductivity, can promote heat transfer, and cooperate with the air flow flowing through the support plate 3 to enhance the heat dissipation effect.

[0037] The specific structures of the outer shell 1 and the heating element 4 are described as follows:

[0038] Please refer to Figure 2 , a protective cover 12 is further provided inside the outer shell 1. The protective cover 12 covers the air inlet 11, and through holes are provided on the side surface of the protective cover 12. The protective cover 12 is provided to prevent impurities outside the outer shell 1 from directly flowing into the outer shell 1 through the air inlet 11 to block part of the impurities. It also includes electronic components. The electronic components are arranged between the heat insulation member 2 and the outer shell 1. The heating element 4 passes through the support plate 3 and the heat insulation member 2 and is electrically connected to the electronic components. The heating element 4 generates heat. During the downward transfer of the heat, it passes through the heat insulation member 2 and the support plate 3. A gap is formed between the heat insulation member 2 and the support plate 3 to isolate part of the heat. And the air flow flowing through the air inlet 11 and the ventilation opening 21 will also flow through the surface of the electronic components to assist the electronic components in heat dissipation to control the temperature of the electronic components.

[0039] Further, the heating element 4 is hermetically connected to the support plate 3, and the heating element 4 is hermetically connected to the heat insulation member 2, so as to prevent the liquid in the baking tray 5 from seeping into the position of the electronic components along the heating element 4.

[0040] The specific working process of the present utility model is as follows:

[0041] When the electric oven works, the electronic components control the heating element 4 to connect to the power supply to generate heat. The generated heat is radiated to the baking tray 5 for frying and baking, and at the same time, the heat is also conducted to the support plate 3. The heat on the support plate 3 passes through the support portion 31 and the gap between the support plate 3 and the heat insulation member 2, and is transferred to the heat insulation member 2. The heat on the heat insulation member 2 passes through the first flanging 22 and the gap between the heat insulation member 2 and the housing 1, and is transferred to the housing 1. During the heat transfer process, the air flow flowing through the air inlet 11, the ventilation opening 21 and the air outlet 32 blows over the surfaces of the housing 1, the heat insulation member 2 and the support plate 3, continuously taking away the heat.

[0042] It can be seen that in the above-mentioned electric oven, an air duct is formed between the air inlet 11, the ventilation opening 21 and the air outlet 32, and the air flow flows in the air duct to take away the heat and reduce the temperature of the housing 1.

[0043] The technical features of the above embodiments can be combined arbitrarily. For the sake of concise description, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.

[0044] The above embodiments only represent several implementation manners of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present utility model, several deformations and improvements can still be made, and these all belong to the protection scope of the present utility model. Therefore, the protection scope of the utility model patent should be subject to the appended claims.

Claims

1. An electric oven, comprising a housing, a baking tray arranged on the housing, and a heating element arranged in the housing, characterized in that: include: A heat insulating member is arranged in the shell, and a vent is provided on the heat insulating member; A support plate is arranged between the baking tray and the heat insulating member, and the heating element is arranged between the baking tray and the support plate; Wherein, an air inlet is provided on the shell, and the air inlet is connected to the vent; The support plate is provided with support parts extending in the circumferential direction, the support parts abut against the heat insulating member, and the gaps between adjacent support parts form air outlets.

2. An electric oven as claimed in claim 1, characterized in that: The middle part of the heat insulating member is recessed to form a heating cavity, and the support plate and the baking tray are arranged in the heating cavity; the support part contacts the side wall of the heating cavity.

3. An electric oven as claimed in claim 2, characterized in that: The outer edge of the support plate extends upward to form a vertical surface, and the support portion is arranged on the vertical surface. A gap is formed between the vertical surface and the side wall of the heating chamber.

4. An electric oven as claimed in claim 1, characterized in that: A first flange is provided on the outer edge of the heat insulating member extending outward, and the first flange contacts the upper portion of the outer shell.

5. An electric oven as claimed in claim 4, characterized in that: The support plate is provided with a support protrusion to support the baking tray; the outer edge of the baking tray is provided with a second flange extending outward, and a gap is left between the first flange and the second flange.

6. An electric oven as claimed in claim 1, characterized in that: A threaded boss is disposed on the upper surface of the heat insulating member, the lower surface of the support plate contacts the threaded boss, and a connecting hole is formed on the support plate to align with the threaded boss.

7. An electric oven as claimed in claim 1, characterized in that: A protective cover is also arranged in the shell, the protective cover is arranged at the air inlet, and a through hole is provided on the side of the protective cover.

8. An electric oven as claimed in claim 1, characterized in that: The support plate is made of metal.

9. An electric oven as claimed in claim 1, characterized in that: It also includes an electronic component, and the heating element is electrically connected to the electronic component.

10. An electric oven as claimed in claim 9, characterized in that: The heating element is electrically connected to the electronic element through the support plate and the heat insulating member.

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