An embedded high-efficiency circulating hot air furnace

Abstract

This utility model provides an embedded high-efficiency circulating hot air oven, comprising: an outer casing with a front door installed on the front side; an inner casing installed inside the outer casing; a uniform air distribution plate installed at the rear end of the inner casing; multiple parallel and spaced circulating air inlets on the upper and lower ends of the uniform air distribution plate; forward-bent folded edges on both the left and right ends of the uniform air distribution plate; two sets of circulating air outlets facing the inner casing on the uniform air distribution plate; a hot air cavity back sealing plate installed at the rear end of the uniform air distribution plate; and a hot air circulation cavity formed between the hot air cavity back sealing plate and the uniform air distribution plate; a first hot air circulation component and a second hot air circulation component installed side-by-side and spaced within the hot air circulation cavity; and an electric heating plate installed on the inner side of the top of the inner casing. This embedded high-efficiency circulating hot air oven, through the design of its internal heating and circulating air structures, can achieve efficient circulation and delivery of hot air, meeting the requirements of high-temperature baking.

Description

Technical Field

[0001] This utility model relates to the field of food processing equipment technology, specifically to an embedded high-efficiency circulating hot air furnace. Background Technology

[0002] Hot air ovens are an important component of baking ovens, providing the heat needed for baking food. They are frequently used in food processing. In existing technology, the heat exchange tubes in hot air ovens are typically U-shaped. This design results in shorter tube lengths, leading to a smaller contact area between the heat inside the tube and the air in the baking oven, and a shorter heat retention time within the tube, resulting in a lower heat exchange rate. Electric hot air ovens use electric heating elements as the heating power source. These elements are generally distributed in a vertical, parallel arrangement, heating the air before a fan delivers the hot air into the oven. This vertical arrangement of heating elements consumes a significant amount of energy, especially for high-temperature baking, and the low efficiency of hot air delivery makes it difficult to meet the requirements of high-temperature baking.

[0003] Built-in hot air ovens are increasingly popular due to their compact size, easy installation, and small footprint. However, the limited space within these ovens makes it difficult to directly arrange a vertically distributed array of heating elements, and also makes it challenging to meet the requirements of high-temperature baking. Therefore, how to arrange heating elements within a compact built-in hot air oven to achieve efficient hot air circulation and delivery to meet the demands of high-temperature baking is a problem that needs to be solved in this field. Utility Model Content

[0004] To address the shortcomings of existing technologies, this invention proposes an embedded high-efficiency circulating hot air oven. Through the design of the heating structure and circulating air structure inside the oven, efficient circulation and delivery of hot air can be achieved, meeting the requirements of high-temperature baking.

[0005] To achieve the above technical solution, this utility model provides an embedded high-efficiency circulating hot air furnace, comprising: an outer casing, a front door installed on the front side of the outer casing, an inner casing installed inside the outer casing, a uniform air plate installed at the rear end of the inner casing, multiple parallel and spaced circulating air inlets provided at the upper and lower ends of the uniform air plate, forward-bent folded edges provided at both ends of the uniform air plate, two sets of circulating air outlets facing the inner casing provided on the uniform air plate, a hot air cavity back sealing plate installed at the rear end of the uniform air plate, and a hot air circulation cavity formed between the hot air cavity back sealing plate and the uniform air plate, a first hot air circulation component and a second hot air circulation component installed side by side and spaced apart inside the hot air circulation cavity, and an electric heating plate installed on the inner side of the top of the inner casing.

[0006] Preferably, the first and second hot air circulation components have identical structures, both including a motor, a fan blade disk, and an annular heating element. The motor is horizontally mounted on a motor mounting base located on the back of the hot air chamber's back cover plate. The fan blade disk is mounted on the output shaft at the front end of the motor and located within the hot air circulation chamber. The annular heating element is mounted on the outside of the fan blade disk, surrounding it. During actual operation, the motor drives the fan blade disk to rotate, drawing in hot air from the periphery of the fan blade disk and then blowing it forward into the inner casing. The annular heating element provides secondary heating to the surrounding hot air.

[0007] Preferably, an air inlet pipe is installed on the back sealing plate of the hot air cavity on one side of the annular electric heating tube to facilitate the replenishment of fresh air to the hot air circulation cavity.

[0008] Preferably, multiple bottom support legs are installed between the bottom of the inner box and the bottom plate of the outer box, so that a certain gap is maintained between the bottom of the inner box and the outer box, which is conducive to heat dissipation.

[0009] Preferably, a smoke exhaust pipe is installed between the hot air circulation chamber and the back panel of the outer casing to facilitate the exhaust of smoke.

[0010] Preferably, the inner box is equipped with shelves to facilitate the layered arrangement of food to be baked.

[0011] Preferably, two microwave heaters are installed on the side of the inner box, arranged side by side at intervals. In actual use, the microwave heaters can be turned on according to actual requirements to achieve microwave heating.

[0012] Preferably, the front door is a flip-down front door, with a handle installed at the top of the front side of the front door, and a viewing glass window installed in the center of the front door to facilitate the retrieval of food and the observation of the baking process.

[0013] Preferably, a control panel is installed on the right side of the front door, and the operating parameters can be set through the control panel during actual operation.

[0014] The beneficial effects of the embedded high-efficiency circulating hot air oven provided by this utility model are as follows: This embedded high-efficiency circulating hot air oven has a simple structure and reasonable design. Through the design of the heating structure and circulating air structure inside the hot air oven, efficient circulation and delivery of hot air can be achieved to meet the requirements of high-temperature baking. In actual operation, the heating plate installed on the inner side of the top of the inner chamber, as well as the first and second hot air circulation components installed in the hot air circulation chamber, can be heated simultaneously or partially according to the actual baking requirements. This can meet both low-temperature and high-temperature heating requirements. When only low-temperature heating is required, only the heating plate needs to be turned on; when medium-temperature heating is required, only the heating plate and the annular heating tube in the first hot air circulation component need to be turned on simultaneously; when high-temperature heating is required, the heating plate, the annular heating tube in the first and second hot air circulation components need to be turned on simultaneously. Meanwhile, by setting up two hot air circulation components, the hot air inside the inner chamber can be evenly drawn into the hot air circulation cavity through the circulation air inlet holes set on the air distribution plate and the circulation air inlet channel formed by the gap between the left and right folded edges of the air distribution plate and the hot air circulation cavity. Then, the hot air reheated in the hot air circulation cavity is evenly blown into the inner chamber through the circulation air outlet holes by the first hot air circulation component and the second hot air circulation component, thereby achieving efficient circulation and delivery of hot air to meet the requirements of high-temperature baking. Attached Figure Description

[0015] Figure 1 This is a front view of the three-dimensional structure of this utility model.

[0016] Figure 2 This is an exploded three-dimensional structural diagram of the present invention.

[0017] Figure 3 This is a rear view of the internal structure of this utility model after assembly.

[0018] Figure 4 This is a schematic diagram of a partial installation structure of the internal structure of this utility model.

[0019] Figure 5 This is an exploded view of a partial structural assembly of the present invention.

[0020] In the diagram: 1. Outer casing; 2. Front door; 3. Viewing glass window; 4. Handle; 5. Control panel; 6. Inner casing; 7. Air distribution plate; 71. Circulating air inlet; 72. Circulating air outlet; 73. Folded edge; 8. Hot air chamber back seal plate; 9. First hot air circulation assembly; 91. Motor; 92. Fan blade disk; 93. Annular electric heating tube; 10. Second hot air circulation assembly; 11. Motor mounting base; 12. Smoke exhaust pipe; 13. Microwave heater; 14. Air intake pipe; 15. Electric heating plate; 16. Shelf; 17. Bottom support leg. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0022] Example: An embedded high-efficiency circulating hot air furnace.

[0023] Reference Figures 1 to 5 As shown, an embedded high-efficiency circulating hot air oven includes: an outer casing 1, a front door 2 installed on the front side of the outer casing 1, the front door 2 being a downward-opening front door, a handle 4 installed on the top of the front side of the front door 2, and a viewing glass window 3 installed in the center of the front door 2 for convenient food retrieval and observation of the baking process. A control panel 5 is installed on the right side of the front door 2, through which operating parameters can be set during actual operation.

[0024] An inner box 6 is installed inside the outer box 1. Multiple bottom support legs 17 are installed between the bottom of the inner box 6 and the bottom plate of the outer box 1, so that a certain gap is maintained between the bottom of the inner box 6 and the outer box 1 to facilitate heat dissipation. A shelf 16 is installed inside the inner box 6 to facilitate the layered arrangement of food to be baked.

[0025] A uniform air distribution plate 7 is installed at the rear end of the inner box 6. The upper and lower ends of the uniform air distribution plate 7 are provided with multiple parallel and spaced circulating air inlets 71. The left and right ends of the uniform air distribution plate 7 are provided with forward-bent folded edges 73. The gap between the folded edges 73 and the hot air circulation chamber forms a circulating air inlet channel. The uniform air distribution plate 7 is provided with two sets of circulating air outlets 72 facing the inner box 6. A hot air chamber back sealing plate 8 is installed at the rear end of the uniform air distribution plate 7. The hot air chamber back sealing plate 8 and the uniform air distribution plate 7 enclose and form a hot air circulation chamber. The first hot air circulation component 9 and the second hot air circulation component 10 are installed side by side and spaced apart in the hot air circulation chamber. The electric heating plate 15 is installed on the inner side of the top of the inner box 6. The first hot air circulation assembly 9 and the second hot air circulation assembly 10 have the same structure, both including a motor 91, a fan blade disk 92, and an annular electric heating tube 93. The motor 91 is horizontally mounted on a motor mounting base 11 located on the back of the hot air chamber back cover plate 8. The fan blade disk 92 is mounted on the output shaft at the front end of the motor 91 and located inside the hot air circulation chamber. The annular electric heating tube 93 is mounted on the outside of the fan blade disk 92 and surrounds it. In actual operation, the motor 91 drives the fan blade disk 92 to rotate, drawing in hot air from the periphery of the fan blade disk 92 and then blowing it forward into the inner casing 6. The annular electric heating tube 93 can provide secondary heating to the surrounding hot air.

[0026] In this embodiment, an air inlet pipe 14 is installed on the back sealing plate 8 of the hot air cavity, located on one side of the annular electric heating tube 93, to facilitate the replenishment of fresh air to the hot air circulation cavity. An exhaust pipe 12 is installed between the hot air circulation cavity and the back plate of the outer casing 1 to facilitate the exhaust of smoke. Two microwave heaters 13 are installed on the side edge of the inner casing 6, arranged vertically and at intervals. In actual use, the microwave heaters 13 can be turned on according to actual requirements to achieve microwave heating.

[0027] This embedded high-efficiency circulating hot air oven has a simple structure and reasonable design. Through the design of the heating and circulating air structures inside the oven, it can achieve efficient circulation and delivery of hot air to meet the requirements of high-temperature baking. In actual operation, the heating plate 15 installed on the inner side of the top of the inner chamber 6, as well as the first hot air circulation component 9 and the second hot air circulation component 10 installed in the hot air circulation chamber, can be heated simultaneously or partially, according to the actual baking requirements. This can meet the requirements of low-temperature, medium-temperature, and high-temperature heating. When only low-temperature heating is required, only the heating plate 15 needs to be turned on. When medium-temperature heating is required, only the heating plate 15 and the annular heating tube 93 in the first hot air circulation component 9 need to be turned on simultaneously. When high-temperature heating is required, the heating plate 15, the annular heating tube 93 in the first hot air circulation component 9 and the second hot air circulation component 10 need to be turned on simultaneously. Meanwhile, by setting two hot air circulation components, the hot air in the inner box 6 can be evenly drawn into the hot air circulation cavity through the circulation air inlet 71 set on the air distribution plate 7 and the circulation air inlet channel formed by the gap between the left and right folded edges 73 of the air distribution plate 7 and the hot air circulation cavity. Then, the hot air reheated in the hot air circulation cavity is evenly blown into the inner box 6 through the circulation air outlet 72 through the first hot air circulation component 9 and the second hot air circulation component 10, thereby realizing the efficient circulation and delivery of hot air and meeting the requirements of high temperature baking.

[0028] The above description is only a preferred embodiment of the present utility model. However, the present utility model should not be limited to the content disclosed in the embodiments and drawings. Therefore, any equivalent or modified embodiments made without departing from the spirit disclosed in the present utility model shall fall within the protection scope of the present utility model.

Claims

1. An embedded high-efficiency circulating hot air furnace, comprising: An outer casing with a front door installed on its front side and an inner casing installed inside the outer casing, characterized in that: a uniform air distribution plate is installed at the rear end of the inner casing, the upper and lower ends of the uniform air distribution plate are provided with multiple parallel and spaced circulating air inlets, the left and right ends of the uniform air distribution plate are provided with forward-bent folded edges, the uniform air distribution plate is provided with two sets of circulating air outlets facing the inner casing, a hot air cavity back sealing plate is installed at the rear end of the uniform air distribution plate, the hot air cavity back sealing plate and the uniform air distribution plate enclose and form a hot air circulation cavity, a first hot air circulation component and a second hot air circulation component are installed side by side and spaced apart in the hot air circulation cavity, and an electric heating plate is installed on the inner side of the top of the inner casing.

2. The embedded high-efficiency circulating hot air furnace as described in claim 1, characterized in that: The first hot air circulation assembly and the second hot air circulation assembly have the same structure, both including a motor, a fan blade disk and an annular electric heating tube. The motor is horizontally mounted on a motor mounting base located on the back of the hot air cavity back cover plate. The fan blade disk is mounted on the output shaft at the front end of the motor and located inside the hot air circulation cavity. The annular electric heating tube is mounted on the outside of the fan blade disk and surrounds the fan blade disk.

3. The embedded high-efficiency circulating hot air furnace as described in claim 2, characterized in that: An air intake pipe is installed on the back sealing plate of the hot air cavity on one side of the annular electric heating tube.

4. The embedded high-efficiency circulating hot air furnace as described in claim 1, characterized in that: Multiple bottom support legs are installed between the bottom of the inner box and the bottom plate of the outer box.

5. The embedded high-efficiency circulating hot air furnace as described in claim 1, characterized in that: A smoke exhaust pipe is installed between the hot air circulation chamber and the back panel of the outer casing.

6. The embedded high-efficiency circulating hot air furnace as described in claim 1, characterized in that: The inner box is equipped with shelves.

7. The embedded high-efficiency circulating hot air furnace as described in claim 1, characterized in that: Two microwave heaters are installed side by side at intervals on the side of the inner box.

8. The embedded high-efficiency circulating hot air furnace as described in claim 1, characterized in that: The front door is a flip-down type, with a handle installed at the top of the front side of the front door, and a viewing glass window installed in the center of the front door.

9. The embedded high-efficiency circulating hot air furnace as described in claim 1, characterized in that: A control panel is installed on the right side of the front door.

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