A pellet grill with a heat insulation structure

Abstract

The utility model discloses a granule oven with heat insulation structure, include: casing, combustion chamber is located in the casing, and heat shield is located around the combustion chamber, wherein, the heat shield is funnel -shaped, has upper end opening and lower end opening, the position of lower end opening is lower than the top of combustion chamber, the position of upper end opening is higher than the top of combustion chamber, thereby forms the heat insulation structure for blocking heat radiation and heat convection around the combustion chamber. The utility model has the advantages of improving heat insulation performance.

Description

Technical Field

[0001] This utility model relates to the field of pellet oven technology, and in particular to a pellet oven with a heat insulation structure. Background Technology

[0002] Currently, most pellet ovens on the market use a single-layer oven structure, and the combustion chamber is usually directly exposed to the oil guide plate, or separated by only a single heat spreader. This design has the following significant drawbacks:

[0003] 1. Severe heat diffusion: The heat generated in the combustion chamber easily diffuses to the surroundings and downwards, causing the metal parts around the oven to become too hot.

[0004] 2. Coating is prone to aging and damage: The coating on the surface of the oven is exposed to high temperature for a long time, which can accelerate aging and damage, leading to user complaints and safety hazards.

[0005] 3. Poor temperature uniformity: The heat of the entire oven cavity is mainly provided by the central combustion chamber, resulting in excessively high temperatures in the central area of ​​the oven cavity, while the temperatures on both sides are too low. The uneven temperature distribution inside the oven cavity seriously affects the cooking effect.

[0006] 4. Poor user experience: Due to the above-mentioned defects, existing pellet ovens are prone to problems such as uneven heating of food and excessive baking time during use, which significantly reduces the user experience.

[0007] Furthermore, traditional pellet ovens lack adequate insulation, leading to heat loss and low energy efficiency. Additionally, excessively high surface temperatures pose a safety hazard, potentially causing burns to users.

[0008] Therefore, it is necessary to further improve and perfect the existing technology to overcome these shortcomings, and this utility model is made based on this situation. Utility Model Content

[0009] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a pellet oven with improved heat insulation performance.

[0010] This utility model is achieved through the following technical solution:

[0011] To solve the above-mentioned technical problems, this utility model provides a pellet oven with a heat-insulating structure, comprising:

[0012] case;

[0013] The combustion chamber is disposed within the housing; and

[0014] A heat shield is provided around the combustion chamber;

[0015] The heat shield is funnel-shaped, with an upper opening and a lower opening. The lower opening is located below the top of the combustion chamber, and the upper opening is located above the top of the combustion chamber, thereby forming a heat insulation structure around the combustion chamber to block heat radiation and heat convection.

[0016] To further address the technical problems to be solved by this utility model, this utility model provides a pellet oven with a heat insulation structure. The heat insulation cover includes a front plate, a rear plate, a left plate, and a right plate. The front plate, rear plate, left plate, and right plate are fixedly connected to each other to form a funnel shape, and each plate is inclined upward and extends outward. A heat insulation space for heat insulation is formed between the front plate, rear plate, left plate, right plate, and the inner wall of the shell.

[0017] To further solve the technical problem to be solved by this utility model, this utility model provides a pellet oven with a heat insulation structure, wherein a hopper is provided inside the shell, a feeding device for feeding fuel into the combustion chamber is provided between the lower end outlet of the hopper and the combustion chamber, and a blower is provided on one side of the combustion chamber. The driving part of the feeding device and the driving part of the blower are both located in the corresponding heat insulation space.

[0018] To further address the technical problems to be solved by this utility model, this utility model provides a pellet oven with a heat insulation structure. The front side of the shell is provided with a control element, and a reinforcing heat insulation plate is provided between the front side wall and the front plate of the shell. There are gaps between the reinforcing heat insulation plate and the front side wall of the shell, and between the reinforcing heat insulation plate and the front plate, forming an additional heat insulation layer to reduce the surface temperature of the front side of the shell.

[0019] To further solve the technical problem to be solved by this utility model, this utility model provides a pellet oven with a heat insulation structure, wherein the heat insulation cover is provided with a plurality of hanging ears, the hanging ears are suspended at the corresponding positions of the shell, and the main body of the heat insulation cover is spaced apart from the shell and from the combustion chamber to form an air insulation layer.

[0020] In order to further solve the technical problem to be solved by this utility model, this utility model provides a pellet oven with a heat insulation structure, wherein the inner cavity of the shell is provided with support plates on both sides for supporting the hanging ears, and the end of the support plate is provided with an upwardly extending vertical part, and the hanging ears are placed from top to bottom on the upper end of the corresponding vertical part.

[0021] To further address the technical problems to be solved by this utility model, this utility model provides a pellet oven with a heat insulation structure, wherein the inner surface of the heat insulation cover is smooth and polished to reflect heat back to the combustion chamber.

[0022] In order to further solve the technical problems to be solved by this utility model, this utility model provides a pellet oven with a heat insulation structure, wherein the heat insulation cover is made of stainless steel.

[0023] To further address the technical problems addressed by this utility model, this utility model provides a pellet oven with a heat-insulating structure. An inclined oil guide plate is provided directly above the combustion chamber. A hollowed-out flame-through hole is provided in the middle of the oil guide plate. An open flame baffle is slidably connected to the flame-through hole. The open flame baffle can selectively cover the flame-through hole to adjust the size of the flame.

[0024] To further address the technical problems to be solved by this utility model, this utility model provides a pellet oven with a heat-insulating structure, wherein a downwardly extending temperature-equalizing ring plate is provided at the center of the bottom surface of the oil guide plate, and the temperature-equalizing ring plate surrounds the top of the combustion chamber.

[0025] Compared with the prior art, the present invention has the following advantages:

[0026] 1. This utility model adopts a unique funnel-shaped heat insulation cover design. The heat insulation cover is set around the combustion chamber, which effectively blocks heat radiation and heat convection, significantly reducing the temperature around and below the oven. This not only extends the service life of the oven, but also improves safety and energy efficiency.

[0027] 2. In this invention, the heat insulation space formed between the heat insulation cover and the shell, as well as the heat insulation space around key components (such as the drive parts and control elements of the feeding device and blower), are utilized. This design effectively protects these components from high temperatures, ensures their stable operation, and improves the overall reliability of the oven.

[0028] 3. The inner surface of the heat insulation cover of this utility model is smooth and polished. This design can reflect heat back to the combustion chamber as much as possible, reduce heat loss, improve combustion efficiency, and make the temperature distribution inside the furnace cavity more uniform.

[0029] 4. To facilitate the installation and fixation of the heat insulation cover and minimize heat transfer, this invention cleverly employs a suspension lug design. The suspension lug, connected to the support structure on the shell, not only enables quick installation and disassembly of the heat insulation cover but also effectively reduces heat transfer and improves the insulation effect due to its small contact area with the support structure. Simultaneously, the suspended design of the main body of the heat insulation cover also maximizes the blocking of heat conduction, ensuring optimal insulation performance. Attached Figure Description

[0030] The specific embodiments of this utility model will be further described in detail below with reference to the accompanying drawings, wherein:

[0031] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0032] Figure 2 This is a schematic diagram of the three-dimensional structure of the heat shield;

[0033] Figure 3 This is a cross-sectional view of the present invention;

[0034] Figure 4 This is one of the three-dimensional sectional views of this utility model;

[0035] Figure 5 This is the second perspective sectional view of this utility model. Detailed Implementation

[0036] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0037] like Figure 1 As shown, this embodiment provides a pellet oven with a heat-insulating structure. Its core lies in the innovative design of the heat-insulating structure around the combustion chamber, which effectively solves the problems of excessively high furnace surface temperature, uneven heat distribution, high energy consumption, and easy damage of components in the prior art.

[0038] This pellet oven mainly comprises a shell 1, a combustion chamber 2 located inside the shell 1, and a heat insulation cover 3 surrounding the combustion chamber 2. The heat insulation cover 3 has a unique funnel-shaped structure (smaller at the bottom and larger at the top), with its lower opening below the top of the combustion chamber 2 and its upper opening above the top of the combustion chamber 2. This structure forms a surrounding heat insulation structure around the combustion chamber 2, effectively blocking the heat radiation and convection generated during combustion, significantly reducing heat diffusion to the surroundings and downwards. In this way, not only can the surface temperature of the shell 1 be significantly reduced, preventing burns to users during use, but it can also effectively prevent the coating on the shell surface from prematurely aging due to prolonged exposure to high temperatures, extending the oven's service life. More importantly, this heat insulation design also helps reduce the operating temperature of key components such as the feeding device 5 and the blower device 6, preventing damage due to prolonged heating and ensuring stable operation of the oven.

[0039] To further enhance the heat insulation effect, in this embodiment, the heat insulation cover 3 is composed of a front panel 31, a rear panel 32, a left panel 33, and a right panel 34 (e.g., Figure 2(As shown). These panels are fixedly connected to each other (e.g., welded or riveted) to form a funnel-shaped structure. Each panel is arranged at an upward and outward angle, thereby creating an insulating space, or air gap, between the panel and the inner wall of the shell 1. These insulating spaces act as natural insulating layers, further hindering heat transfer and improving the overall insulation performance.

[0040] like Figure 3 and Figure 4 As shown, the interior of the casing 1 also includes a hopper 4, a feeding device 5, and an air blower 6. The hopper 4 stores fuel particles, the feeding device 5 (including a motor and a conveying screw) transports the fuel particles from the hopper 4 to the combustion chamber 2, and the air blower 6 (including a blower fan) supplies the combustion chamber 2 with the air required for combustion. To ensure stable operation of the driving components of the feeding device 5 and the air blower 6 at lower temperatures, this embodiment places these driving components within the heat-insulating space formed between the heat insulation cover 3 and the casing 1. This design effectively avoids the impact of high temperatures on electronic components, extends the service life of the equipment, and improves the reliability of the oven.

[0041] Furthermore, a control element 7 (including a circuit board and a control panel) is provided on the front side of the housing 1. Considering that the operating area on the front side of the oven is prone to heat accumulation, this embodiment also adds a reinforcing heat insulation plate 8 (such as...) between the front side wall of the housing 1 and the front plate 31. Figures 3-4 (As shown). Spacing is maintained between the reinforcing insulation plate 8 and the front wall of the housing 1, as well as between the reinforcing insulation plate 8 and the front panel 31, forming an additional insulation layer. This multi-layer insulation design significantly reduces the surface temperature of the front side of the housing 1, providing users with a safer and more comfortable operating experience.

[0042] To facilitate the installation and fixation of the heat insulation cover 3 and minimize heat transfer, this embodiment also provides several hanging lugs 35 on the heat insulation cover 3 (e.g., ...). Figure 2 (As shown). These suspension lugs 35 are suspended from the support plates 11 on both sides of the inner cavity of the housing 1. Specifically, as shown... Figure 5 As shown, the support plate 11 has an upwardly extending vertical portion 111 at its end. The hanging lug 35 can be placed from top to bottom on the upper end of the corresponding vertical portion 111, thereby enabling quick installation and removal of the heat insulation cover 3. In addition, the contact area between the hanging lug 35 and the vertical portion 111 is very small, minimizing the possibility of heat transfer through contact and reducing heat loss.

[0043] Of particular note is that, to achieve optimal heat insulation, this embodiment preferably maintains a certain distance between the main body of the heat insulation cover 3 and the shell 1, as well as between the main body of the heat insulation cover 3 and the combustion chamber 2, thereby forming an air insulation layer and further enhancing the heat insulation effect. In other words, the main body of the heat insulation cover 3 is completely suspended, avoiding direct contact with the shell 1 and the combustion chamber 2, thus maximally blocking heat transfer through conduction and ensuring optimal heat insulation. This design concept is the key to the breakthrough in heat insulation performance achieved by this invention.

[0044] To further improve heat utilization and temperature uniformity within the furnace cavity, this embodiment preferably uses a heat insulation cover 3 made of stainless steel with a smooth and polished inner surface. This design can reflect heat back to the combustion chamber 2 as much as possible, reducing heat loss, improving combustion efficiency, and making the temperature distribution inside the furnace cavity more uniform.

[0045] To facilitate user adjustment of the flame intensity, this embodiment also includes an inclined oil guide plate 9 directly above the combustion chamber 2. The oil guide plate 9 not only guides the grease flow to the collection device, preventing grease from dripping into the combustion chamber 2 and generating harmful substances, but also features a perforated flame-through hole 91 in the center. Of course, an oil collection trough is located on one side of the housing 1, with the oil guide plate 9 inclined towards it. A detachable oil collection box is located at the bottom of the housing 1, and the oil collection trough and oil collection box are connected via a conduit. A flame-blocking cover 92 is slidably connected to the flame-through hole 91, allowing the user to adjust the opening and closing degree of the flame-through hole 91 by sliding the flame-blocking cover 92, thereby flexibly controlling the flame size.

[0046] Furthermore, to further improve the temperature uniformity inside the combustion chamber, this embodiment also includes a downwardly extending temperature-equalizing ring plate 93 at the center of the bottom surface of the oil guide plate 9. The temperature-equalizing ring plate 93 surrounds the combustion chamber 2 directly above, effectively uniformizing heat and preventing excessively high local temperatures, thereby achieving a more uniform cooking effect.

[0047] In summary, this embodiment, through comprehensive optimization of the insulation structure of the pellet oven, not only significantly improves the oven's insulation performance, temperature uniformity, energy efficiency, and safety, but also effectively extends the oven's service life, bringing users a superior user experience.

Claims

1. A pellet oven with a heat-insulating structure, characterized in that, include: Shell (1); Combustion chamber (2), disposed within the housing (1); and A heat shield (3) is provided around the combustion chamber (2); The heat shield (3) is funnel-shaped, with an upper opening and a lower opening. The lower opening is located below the top of the combustion chamber (2), and the upper opening is located above the top of the combustion chamber (2), thereby forming a heat insulation structure around the combustion chamber (2) to block heat radiation and heat convection.

2. A pellet oven with a heat-insulating structure according to claim 1, characterized in that: The heat insulation cover (3) includes a front plate (31), a rear plate (32), a left plate (33), and a right plate (34). The front plate (31), rear plate (32), left plate (33), and right plate (34) are fixedly connected to each other to form a funnel shape, and each of them is inclined upward and extends outward. A heat insulation space for heat insulation is formed between the front plate (31), rear plate (32), left plate (33), and right plate (34) and the inner wall of the shell (1).

3. A pellet oven with a heat-insulating structure according to claim 2, characterized in that: The housing (1) is also provided with a hopper (4). A feeding device (5) for feeding fuel into the combustion chamber (2) is provided between the lower end outlet of the hopper (4) and the combustion chamber (2). A blower (6) is also provided on one side of the combustion chamber (2). The driving part of the feeding device (5) and the driving part of the blower (6) are both located in the corresponding heat insulation space.

4. A pellet oven with a heat-insulating structure according to claim 2, characterized in that: The front side of the housing (1) is provided with a control element (7), and a reinforcing heat insulation plate (8) is provided between the front side wall and the front plate (31) of the housing (1). There are gaps between the reinforcing heat insulation plate (8) and the front side wall of the housing (1), and between the reinforcing heat insulation plate (8) and the front plate (31) to form an additional heat insulation layer to reduce the surface temperature of the front side of the housing (1).

5. A pellet oven with a heat-insulating structure according to claim 1, characterized in that: The heat insulation cover (3) is provided with a plurality of hanging ears (35), which are suspended at the corresponding positions of the housing (1). The main body of the heat insulation cover (3) is spaced apart from the housing (1) and from the combustion chamber (2) to form an air insulation layer.

6. A pellet oven with a heat-insulating structure according to claim 5, characterized in that: The inner cavity of the housing (1) is provided with support plates (11) on both sides for supporting the suspension ears (35). The end of the support plate (11) is provided with an upwardly extending vertical part (111). The suspension ears (35) are placed from top to bottom on the upper end of the corresponding vertical part (111).

7. A pellet oven with a heat-insulating structure according to claim 1, characterized in that: The inner surface of the heat shield (3) is smooth and polished to reflect heat back to the combustion chamber (2).

8. A pellet oven with a heat-insulating structure according to claim 7, characterized in that: The heat insulation cover (3) is made of stainless steel.

9. A pellet oven with a heat-insulating structure according to claim 1, characterized in that: An inclined oil guide plate (9) is provided directly above the combustion chamber (2). The oil guide plate (9) has a hollowed-out flame hole (91) in the middle. An open flame shield (92) is slidably connected to the flame hole (91). The open flame shield (92) can selectively cover the flame hole (91) to adjust the size of the flame.

10. A pellet oven with a heat-insulating structure according to claim 9, characterized in that: The bottom center of the oil guide plate (9) is provided with a downwardly extending temperature equalization ring plate (93), which surrounds the combustion chamber (2) directly above it.

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