Electric oven with hot air internal circulation constant-temperature heating function

Abstract

An electric oven with a hot air internal circulation constant-temperature heating function comprises a shell and an inner container arranged in the shell, an opening is formed in the front end opening of the shell, a door body is installed on the opening in a covering mode, a heat dissipation area is formed between the inner container and the shell, and an internal circulation device is embedded in the heat dissipation area; the inner circulation device comprises a wind shell, the wind shell covers the outer side wall of the inner container, an air channel is defined by the wind shell and the inner container, and a draught fan is installed in the air channel; an air inlet and an air outlet are formed in the side wall of the inner container and are communicated with the two ends of the air duct respectively; the fan is installed at the air inlet end, hot air enters the air duct through the air inlet and enters the inner container again through the air outlet, and hot air internal circulation of the inner container is achieved. The oven has the advantages that the hot air internal circulation device is arranged, local baking of food is avoided, it is guaranteed that the food is fully baked in all directions, the baking effect of the food is improved, and the baking efficiency is improved.

Description

Technical Field

[0001] This utility model relates to an electric oven, specifically an electric oven with hot air internal circulation constant temperature heating function. Background Technology

[0002] Electric ovens typically use heating elements to generate heat and bake food, enhancing its flavor and texture. In current technology, these heating elements are often located at the top and bottom of the oven, baking the food simultaneously from both ends. This can lead to food near the heating elements heating up rapidly, causing it to burn. Meanwhile, food in the middle or further away from the heating elements receives less heat, resulting in inefficient heat transfer and potentially uneven cooking. Because heat cannot circulate effectively within the oven, users often need to frequently turn the food to ensure even baking, increasing operational complexity and failing to completely solve the problem of uneven heating. Furthermore, heat can dissipate haphazardly to the outside of the oven during transfer, reducing thermal efficiency, increasing energy consumption, and raising operating costs. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of existing technologies and provide an electric oven with a simple structure, low manufacturing cost, hot air internal circulation to improve baking efficiency, avoid heat loss, ideal heating effect, and strong sealing performance, featuring a hot air internal circulation constant temperature heating function.

[0004] The purpose of this utility model is achieved in the following way: an electric oven with hot air internal circulation constant temperature heating function, which includes a shell and an inner liner placed therein, the front end of the shell is open and an opening is provided, a door is covered and installed on the opening, a heat dissipation area is formed between the inner liner and the shell, and an internal circulation device is embedded in the heat dissipation area.

[0005] The internal circulation device includes a fan shell, which covers the outer wall of the inner liner and together with the inner liner forms an air duct. A fan is installed inside the air duct. The side wall of the inner liner is provided with an air inlet and an air outlet, which are respectively connected to both ends of the air duct.

[0006] The fan is installed at the air inlet end. Hot air enters the air duct through the air inlet and re-enters the inner liner through the air outlet, realizing the internal circulation of hot air in the inner liner.

[0007] The air inlet is located below the air outlet, near the bottom of the inner liner.

[0008] The air outlets are arranged in a horizontal, elongated shape, and are arranged to penetrate the side wall of the inner liner.

[0009] A sealing disc extends outward from the edge of the air shell, and the sealing disc covers and seals the outer wall of the inner liner.

[0010] The fan includes a drive motor installed outside the fan casing. The main shaft of the drive motor extends into the air duct and connects to the fan blades, driving them to rotate.

[0011] An air guide plate extends from the air outlet toward the interior of the liner.

[0012] The inner liner protrudes outward to form a baffle plate, which extends into the air duct; the baffle plate is located between the air inlet and the air outlet.

[0013] The beneficial effects of this utility model are: 1. Simple structure, low manufacturing cost, and improved market competitiveness.

[0014] 2. Install a hot air internal circulation device to avoid the problem of localized baking of food, ensure that food is fully baked from all sides, improve the baking effect and increase baking efficiency.

[0015] 3. By utilizing the cooperation between the air duct and the fan, hot air can continuously circulate internally, reducing heat loss and lowering energy consumption.

[0016] 4. The air inlet is located below the air outlet and, together with the design of the air guide plate, forms a bottom-up hot air circulation, which further guides the flow of hot air, increases the flow speed of hot air, ensures that the hot air is evenly distributed in the inner pot, and the food is heated evenly, thus improving the heating effect. Attached Figure Description

[0017] Figure 1 This is a rendering of the final assembly of this utility model.

[0018] Figure 2 This is a schematic diagram of the internal structure of the inner liner in this utility model.

[0019] Figure 3 This is a schematic diagram of the hot air flow state in this utility model.

[0020] Figure 4 This is a structural assembly drawing of the outer shell and inner liner of this utility model.

[0021] Figure 5 This is a schematic diagram of the structure of the fan in this utility model. Detailed Implementation

[0022] The present invention will be further described in detail below with reference to the accompanying drawings. An electric oven with hot air internal circulation constant temperature heating function includes a shell 1 and an inner liner 2 placed therein. The front end of the shell 1 is open and an opening is provided. A door 3 is installed on the opening. A heat dissipation area 11 is formed between the inner liner 2 and the shell 1. An internal circulation device is embedded in the heat dissipation area 11.

[0023] The internal circulation device includes a fan shell 4, which covers the outer wall of the inner liner 2 and together with the inner liner 2 forms an air duct 42. A fan 7 is installed inside the air duct 42. The side wall of the inner liner 2 is provided with an air inlet 5 and an air outlet 6, which are respectively connected to both ends of the air duct 42.

[0024] The fan 7 is installed at the air inlet 5. Hot air enters the air duct 42 through the air inlet 5 and re-enters the inner liner 2 through the air outlet 6, realizing the internal circulation of hot air in the inner liner 2.

[0025] The air inlet 5 is located below the air outlet 6, near the bottom of the inner liner 2.

[0026] The air outlet 6 is arranged in a horizontally elongated waist shape and has several outlets that penetrate the side wall of the inner liner 2.

[0027] A sealing disc 41 extends outward from the edge of the air shell 4, and the sealing disc 41 covers and seals the outer wall of the inner liner 2.

[0028] The fan 7 includes a drive motor 71 installed outside the fan casing 4. The main shaft 72 of the drive motor 71 extends into the air duct 42 and is connected to the fan blade 73, driving it to rotate.

[0029] A guide plate 61 extends from the air outlet 6 toward the interior of the inner liner 2.

[0030] The inner liner 2 has a side wall protruding to form a guide plate 21, which extends into the air duct 42; the guide plate 21 is located between the air inlet 5 and the air outlet 6.

[0031] Working principle: A heat dissipation zone is formed between the inner cavity and the outer shell of the electric oven. An internal circulation device is installed in this heat dissipation zone to circulate the hot air inside the inner cavity.

[0032] The internal circulation device includes a fan casing, which, together with the outer wall of the inner liner, encloses an air duct. A fan is installed within this air duct to power the airflow. Firstly, to connect the inner liner to the air duct, an air inlet and an air outlet are provided on the side wall of the inner liner. The fan is installed outside the air inlet. When the fan starts, the drive motor rotates the fan blades, creating a pressure difference that causes airflow. Hot air from the inner liner is passively drawn into the air duct and flows upwards through the air outlet back into the inner liner, thus achieving continuous hot air circulation within the inner liner.

[0033] By circulating hot air internally, the oven avoids the localized overheating near the heating element that can occur with stagnant air inside traditional electric ovens. This effectively prevents over- or under-baking of food, improving baking quality. The coordinated operation of the fan and air duct reduces heat loss to the outer casing, improving heating efficiency. Users can achieve even baking from all angles without needing to turn the food, shortening baking time and reducing energy consumption.

[0034] In the aforementioned air vent distribution, the air inlet is located below the air outlet and near the bottom of the inner liner. Utilizing the physical principle of rising hot air, this creates an upward hot air circulation flow, resulting in a smoother hot air circulation path. Furthermore, a guide vane is installed at the air outlet end, and a deflector plate extends from the inner liner sidewall into the air inlet duct to further guide the hot air flow, increasing its velocity and ensuring even distribution within the inner liner. This ensures uniform heating of the food and improves the overall heating effect.

[0035] A sealing disc extends outward from the edge of the air casing. The sealing disc covers the outer wall of the inner cavity to seal and fix the air duct, ensuring the sealing performance of the air duct. This ensures that hot air will not leak during the airflow process, thus preventing heat loss, improving the efficiency of hot air internal circulation, and enhancing the operational safety of the electric oven. Therefore, it can be widely promoted.

[0036] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claimed utility model.

Claims

1. An electric oven with hot air internal circulation and constant temperature heating function, comprising a shell (1) and an inner container (2) placed in the shell (1), the front end of the shell (1) is open and provided with an opening, a door body (3) is installed on the opening, characterized in that: The inner container (2) and the shell (1) form a heat dissipation area (11), and the inner circulation device is embedded in the heat dissipation area (11); The inner circulation device comprises a wind shell (4) covering the outer sidewall of the inner container (2) and surrounding a wind channel (42) together with the inner container (2), and a fan (7) is installed in the wind channel (42); the sidewall of the inner container (2) is provided with an air inlet (5) and an air outlet (6), and the air inlet (5) and the air outlet (6) are respectively communicated with two ends of the wind channel (42); The fan (7) is installed at the end of the air inlet (5), hot air enters the wind channel (42) through the air inlet (5), and reenters the inner container (2) through the air outlet (6), so as to realize the hot air inner circulation of the inner container (2).

2. The electric oven with hot air internal circulation and constant temperature heating function according to claim 1, characterized in that: The air inlet (5) is located below the air outlet (6) and close to the bottom of the inner container (2).

3. The electric oven with hot air internal circulation and constant temperature heating function according to claim 1, characterized in that: The air outlet (6) is in the form of a transverse long waist and is provided with a plurality of air outlets penetrating the sidewall of the inner container (2).

4. The electric oven with hot air internal circulation and constant temperature heating function according to claim 1, characterized in that: The edge of the wind shell (4) extends outwardly and is provided with a sealing disc (41) covering and sealingly fixing the outer sidewall of the inner container (2).

5. The electric oven with hot air internal circulation and constant temperature heating function according to claim 1, characterized in that: The fan (7) comprises a driving motor (71) installed outside the wind shell (4), a main shaft (72) of the driving motor (71) extending into the wind channel (42) and connected with a fan blade (73) and driving the fan blade (73) to rotate.

6. The electric oven with hot air internal circulation and constant temperature heating function according to claim 1, characterized in that: The air outlet (6) extends inwardly to the inner container (2) in the direction of the inner container (2).

7. The electric oven with hot air internal circulation and constant temperature heating function according to claim 1, characterized in that: The sidewall of the inner container (2) is outwardly protruding and forms a guide plate (21) extending into the wind channel (42); and the guide plate (21) is located between the air inlet (5) and the air outlet (6).

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