Feeding combustion device of particle furnace and particle furnace

Abstract

The utility model relates to the technical field of baking appliances, and discloses a feeding combustion device of a particle furnace and the particle furnace. The feeding combustion device comprises a shell, a combustion chamber, a feeding mechanism, a fan and an electric control board, a cavity is formed in the shell, and the combustion chamber, the feeding mechanism, the ignition rod, the fan and the electric control board are all arranged in the cavity. The shell is in a square box shape, the draught fan is arranged on the top side of the shell, at least one pair of side walls arranged in the circumferential direction of the shell inclines outwards from bottom to top, the draught fan is used for sucking outside air into the cavity, circulating airflow is formed in the cavity through the side walls of the shell, oxygen is conveyed into the combustion chamber, and meanwhile heat in the cavity can be taken away. And heat dissipation of the feeding mechanism and the electric control board is achieved. Compared with the prior art, heat dissipation holes do not need to be formed in the shell of the feeding combustion device, a heat dissipation fan does not need to be additionally arranged either, the waterproof performance of the feeding combustion device is improved, and it is avoided that rainwater enters the cavity to cause short circuit of a circuit connected with the electric control board; and meanwhile, the cost is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of baking appliances, in particular to a feeding and burning device of a pellet stove and a pellet stove. Background Art

[0002] The pellet stove includes a stove body, a material box and a feeding and burning device. In order to reduce the packaging and transportation costs and after-sales maintenance costs, the material box and the feeding and burning device are usually installed outside the stove body.

[0003] To facilitate the installation and maintenance of the feeding combustion device, the combustion chamber, feeding tube, feeding screw, driving element, fan, ignition rod, and main control board are usually integrated into the installation cavity of the shell to form a whole. The existing shell is usually a square box structure. In order to dissipate heat from the driving element and the electronic control board, there are usually two solutions. The first solution is to provide multiple heat dissipation holes in the shell to dissipate heat from the driving element and the electronic control board through the heat dissipation holes; the second solution is to provide a heat dissipation fan to dissipate heat from the driving element and the electronic control board. Because pellet stoves are usually used outdoors, the first solution has poor waterproof performance. In rainy weather, rainwater can easily enter the shell through the heat dissipation holes, causing short circuits in the electrical connection lines such as the feeding mechanism and the electronic control board inside the shell. The second solution increases the cost of the pellet stove. Utility Model Content

[0004] The first technical problem solved by the present invention is to provide a feeding and burning device for a pellet stove, which can solve the problems of poor waterproof performance and high cost of the feeding and burning device in the prior art; while achieving the provision of oxygen to the combustion chamber and heat dissipation for the feeding mechanism and the electric control board, the waterproof performance of the feeding and burning device is improved and the cost is reduced.

[0005] The second technical problem solved by the present invention is to provide a pellet stove, which can effectively solve the problems of poor waterproof performance and high cost of existing pellet stoves, thereby improving the waterproof performance of the pellet stove while reducing the cost.

[0006] The first technical problem mentioned above is solved by the following technical solution:

[0007] The feeding and combustion device of the pellet stove includes a shell, a combustion chamber, a feeding mechanism, an ignition rod, a fan and an electronic control board. A cavity is provided in the shell, and the combustion chamber, the feeding mechanism, the ignition rod, the fan and the electronic control board are all provided in the cavity. The shell is in the shape of a square box, the fan is provided on the top side of the shell, and at least one pair of side walls provided along the circumference of the shell are inclined outward from bottom to top. The fan is used to draw outside air into the cavity and form a circulating airflow in the cavity through the side walls of the shell.

[0008] Compared with the background technology, the feeding and burning device of the pellet stove described in the present invention has the following beneficial effects:

[0009] The feed combustion device for a pellet stove provided by the present invention is configured such that a combustion chamber, a feed mechanism, an ignition rod, a blower, and an electronic control panel are all located within a cavity of a square box-shaped housing. The blower located on the top side of the housing draws outside air into the cavity. The outside air, guided by at least a pair of sidewalls disposed circumferentially relative to each other and inclined outward from bottom to top, forms a circulating airflow within the cavity. This airflow not only transports oxygen into the combustion chamber but also removes heat from the cavity, thereby dissipating heat for the feed mechanism and the electronic control panel. Compared to the prior art, the feed combustion device does not require heat dissipation holes or a separate heat dissipation fan on the housing, thereby improving the waterproof performance of the feed combustion device and preventing rainwater from entering the cavity and causing a short circuit in the circuit connected to the electronic control panel. This also reduces costs.

[0010] In one embodiment, the shell includes a top plate and a bottom plate arranged opposite to each other, and a first side plate, a second side plate, a third side plate and a fourth side plate connected in sequence between the top plate and the bottom plate, the first side plate and the third side plate are arranged opposite to each other, the second side plate and the fourth side plate are arranged opposite to each other, the first side plate and the third side plate are inclined outward from bottom to top, and the first side plate and the third side plate are arranged at intervals along the length direction of the shell.

[0011] In one embodiment, along the length direction of the shell, the top plate is provided with a avoidance port, a feed port and an air inlet at intervals, the combustion chamber is at least partially provided in the cavity, the open end of the combustion chamber extends out of the shell through the avoidance port, and the combustion chamber is provided with an air inlet hole communicating with the cavity;

[0012] The feeding mechanism includes a driving member and a feeding assembly, one end of the feeding assembly is connected to the driving member, and the other end is connected to the combustion chamber, the feeding port is located between the driving member and the combustion chamber, and the feeding port is communicated with the feeding assembly;

[0013] The fan is arranged at the air inlet and is directly opposite to the driving component.

[0014] In one embodiment, the combustion chamber is arranged close to the first side plate, the electric control board is arranged at an end of the feeding mechanism away from the combustion chamber and close to the third side plate, and the electric control board is arranged perpendicular to the second side plate.

[0015] In one embodiment, the electric control board is connected to the top plate or the bottom plate via a connecting bracket, and a gap is left between the electric control board and the third side plate.

[0016] In one embodiment, both the first side panel and the third side panel are provided with reinforcing ribs.

[0017] In one embodiment, the housing includes a top shell and a bottom shell, and the top shell and the bottom shell are detachably connected;

[0018] The bottom shell includes the bottom plate, the first side plate, the second side plate and the third side plate, and the first side plate, the second side plate and the third side plate are surrounded by the circumference of the bottom plate to form the bottom shell with a top opening and a side opening; the top shell includes the top plate and the fourth side plate, the top plate is arranged at the top opening, and the fourth side plate is arranged at the side opening.

[0019] In one embodiment, the air inlet hole includes a first air inlet hole and a second air inlet hole, the combustion chamber includes a circumferential wall and a bottom wall arranged opposite to the opening end, the first air inlet hole is arranged on the circumferential wall, the second air inlet hole is arranged on the bottom wall, and the diameter of the first air inlet hole is larger than the diameter of the second air inlet hole.

[0020] The second technical problem mentioned above is solved by the following technical solution:

[0021] The pellet stove comprises a stove body, a material box arranged on the side of the stove body, and a feeding and burning device of the pellet stove as described in any of the above schemes, wherein the shell is fixed to the stove body and / or the lower side of the material box by a mounting frame.

[0022] Compared with the background technology, the pellet stove described in the present invention has the following beneficial effects:

[0023] The pellet stove provided by the utility model adopts the above-mentioned pellet stove feeding and burning device, which not only improves the waterproof performance but also reduces the cost.

[0024] In one embodiment, a partition plate is provided in the material box, and the partition plate is arranged at an angle to divide the material box into a discharge chamber and an air inlet chamber, and the discharge chamber can be connected with the feeding mechanism; a vent is provided on one side of the material box, and the vent is connected with the air inlet chamber, and the air inlet chamber is connected with the cavity through the fan. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments of the present invention. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present invention and these drawings without paying any creative work.

[0026] Figure 1 It is a cross-sectional view of a pellet stove provided by a specific embodiment of the present utility model;

[0027] Figure 2 It is a cross-sectional view of a feeding combustion device provided by a specific embodiment of the utility model;

[0028] Figure 3 It is a top view of the feeding combustion device provided by the specific embodiment of the utility model;

[0029] Figure 4 This is an exploded schematic diagram of a housing provided by a specific embodiment of the present utility model;

[0030] Figure 5 It is a structural diagram of the top shell provided by a specific embodiment of the utility model;

[0031] Figure 6 It is a structural schematic diagram of a combustion chamber provided by a specific embodiment of the present utility model.

[0032] Description of labels:

[0033] 100, oil receiving device; 200, furnace body; 300, upper cover; 400, frame; 500, material box; 600, baking net;

[0034] 101, oil collecting pan; 102, oil guide pipe; 103, oil collecting barrel assembly; 201, furnace chamber; 501, partition plate; 502, discharge chamber; 503, air inlet chamber;

[0035] 1. Shell; 11. Top shell; 111. Top plate; 1111. Feed inlet; 1112. Avoidance port; 1113. Air inlet; 112. Fourth side plate; 12. Bottom shell; 121. Bottom plate; 122. First side plate; 123. Second side plate; 124. Third side plate; 125. Reinforcement rib; 13. Connecting bracket; 131. Connecting plate; 132. Hanging plate; 14. Cavity;

[0036] 2. Combustion chamber; 21. Open end; 22. Circumferential wall; 221. First air inlet; 222. Docking port; 23. Bottom wall; 231. Second air inlet;

[0037] 3. Feeding mechanism; 31. Driving member; 32. Feeding assembly; 321. Feeding pipe; 322. Feeding screw; 33. Connecting pipe; 34. L-shaped mounting plate;

[0038] 4. Fan;

[0039] 5. Electric control panel;

[0040] 6. Ignition stick;

[0041] 7. Mounting bracket. DETAILED DESCRIPTION

[0042] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of this application.

[0043] In the description of this application, it should be understood that the terms "inside", "outside", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing this application 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, and therefore should not be understood as a limitation on this application.

[0044] The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the quantity of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0045] In the description of this application, it should be noted that, unless otherwise specified or limited, the term "connection" should be understood in a broad sense. For example, it can mean a fixed connection, a detachable connection, or an integral connection; it can mean a direct connection, an indirect connection through an intermediate medium, or internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0046] like Figure 1 and Figure 2 As shown, this embodiment provides a pellet stove, including a frame 400, a furnace body 200, an upper cover 300, a material box 500, a feeding and burning device and an oil receiving device 100. The furnace body 200 is mounted on the frame 400, and a furnace cavity 201 is formed in the furnace body 200. A baking net 600 is laid above the furnace cavity 201, and the upper cover 300 is arranged above the baking net 600 to close the furnace body 200. The material box 500 is arranged on one side of the furnace body 200, and one end of the feeding and burning device is connected to the material box 500, and the other end is connected to the bottom of the furnace cavity 201. A discharge port is provided at the bottom of the material box 500, and a heating opening is provided at the bottom of the furnace cavity 201. The fuel in the material box 500 enters the feeding and burning device through the discharge port, and the heat from the combustion in the feeding and burning device enters the furnace cavity 201 through the heating opening (as shown in FIG. Figure 1 The oil collecting device 100 is used to collect food grease ( Figure 1 The flow direction indicated by the longer arrow is the direction of grease flow).

[0047] This embodiment also provides a pellet stove feeding and burning device, which is applied to the above pellet stove. Figure 2 As shown, the feed combustion device includes a housing 1, a combustion chamber 2, a feed mechanism 3, a blower 4, an ignition rod 6, and an electronic control board 5. A cavity 14 is defined within the housing 1, and the combustion chamber 2, feed mechanism 3, blower 4, ignition rod 6, and electronic control board 5 are all located within this cavity 14. The housing 1 is square and box-shaped, with the blower 4 positioned at the top of the housing 1 and having at least one pair of sidewalls disposed circumferentially of the housing 1 that tilt outward from bottom to top. The blower 4 is configured to draw ambient air into the cavity 14 and form a circulating airflow within the cavity 14 through the sidewalls of the housing 1. The ambient air is drawn into the cavity 14 from the top of the housing 1, flows along the extension of the sidewalls of the housing 1, and, guided by the at least one pair of circumferentially opposed, outwardly tilted sidewalls of the housing 1, forms a circulating airflow within the cavity 14. This airflow not only delivers oxygen to the combustion chamber 2 but also removes heat from the cavity 14, thereby dissipating heat for the feed mechanism 3 and the electronic control board 5. Compared with the prior art, the shell 1 of the feeding combustion device does not need to be provided with heat dissipation holes, nor does it need to be provided with an additional cooling fan, thereby improving the waterproof performance of the feeding combustion device and preventing rainwater from entering the cavity 14 and causing a short circuit in the line connected to the electric control board 5; at the same time, it reduces costs.

[0048] In one embodiment, if Figure 2 and Figure 4 As shown, the shell 1 includes a top plate 111 and a bottom plate 121 arranged opposite to each other, and a first side plate 122, a second side plate 123, a third side plate 124 and a fourth side plate 112 connected in sequence between the top plate 111 and the bottom plate 121. The first side plate 122 and the third side plate 124 are arranged opposite to each other, the second side plate 123 and the fourth side plate 112 are arranged opposite to each other, the first side plate 122 and the third side plate 124 are inclined outward from bottom to top, and the first side plate 122 and the third side plate 124 are arranged at intervals along the length direction of the shell 1. Such a configuration allows external air to flow toward the bottom plate 121 after entering the cavity 14, and to be blocked by the bottom plate 121 and changed in direction to be divided into two paths, one of which flows toward the first side plate 122, and can flow toward the top plate 111 after being blocked by the end of the first side plate 122 close to the bottom plate 121; the other flows toward the third side plate 124, and can flow toward the top plate 111 after being blocked by the end of the third side plate 124 close to the bottom plate 121, thereby forming a circulating airflow.

[0049] In one embodiment, if Figure 2 and Figure 3As shown, along the length of the housing 1, the top plate 111 is spaced apart with a relief opening 1112, a feed opening 1111, and an air inlet 1113. The feed opening 1111 is connected to the feed mechanism 3 via a connecting pipe 33. The combustion chamber 2 is at least partially located within the cavity 14. The open end 21 of the combustion chamber 2 extends out of the housing 1 through the relief opening 1112 and then enters the furnace cavity 201 through the heating opening. The combustion chamber 2 is provided with an air inlet hole connected to the cavity 14. The feed mechanism 3 includes a driving member 31 and a feed assembly 32. One end of the feed assembly 32 is connected to the driving member 31, and the other end is connected to the combustion chamber 2. The feed opening 1111 is located between the driving member 31 and the combustion chamber 2, and the feed opening 1111 is connected to the feed assembly 32 via a connecting pipe 33. The fan 4 is provided at the air inlet 1113 and is arranged directly opposite the driving member 31. With this arrangement, the outside air drawn into the cavity 14 by the fan 4 can directly dissipate heat for the driving component 31 when flowing toward the bottom plate 121 .

[0050] Specifically, the driving member 31 is a drive motor, and the feed assembly 32 includes a feed pipe 321 and a feed screw 322. The feed screw 322 is disposed within the feed pipe 321. One end of the feed pipe 321 abuts the drive motor, and the other end communicates with the combustion chamber 2. The end of the connecting pipe 33, away from the feed inlet 1111, is connected to the feed pipe 321. The drive shaft of the drive motor drives the feed screw 322 to rotate, so that the fuel entering the feed pipe 321 through the feed inlet 1111 and the connecting pipe 33 is delivered to the combustion chamber 2.

[0051] Furthermore, the feed pipe 321 is arranged to be inclined upward from the end close to the drive motor to the end close to the combustion chamber 2. For example, the inclination angle is 15°, that is, the angle between the axis of the feed pipe 321 and the bottom of the shell 1 is 15°. Such an arrangement can effectively reduce the phenomenon of the feed screw 322 idling without feeding, so that the combustion calorific value of the combustion chamber 2 is more stable and will not fluctuate frequently.

[0052] One end of the ignition rod 6 extends into the combustion chamber 2, and the fan 4 provides air to the cavity 14. When the air is fully mixed with the fuel in the combustion chamber 2, the ignition rod 6 is energized and ignited to ignite the fuel in the combustion chamber 2.

[0053] The electric control board 5 is connected to an external power source through a power line, and the driving member 31 , the fan 4 and the ignition rod 6 are all electrically connected to the electric control board 5 so that the electric control board 5 can provide power to the driving member 31 , the fan 4 and the ignition rod 6 .

[0054] In one embodiment, the combustion chamber 2 is positioned near the first side panel 122, and the electronic control board 5 is positioned at the end of the feed mechanism 3 away from the combustion chamber 2 and near the third side panel 124. The electronic control board 5 is positioned perpendicular to the second side panel 123. After outside air enters the cavity 14, one airflow flowing toward the first side panel 122 is blocked by the end of the first side panel 122 near the bottom panel 121 before flowing toward the combustion chamber 2. It then enters the combustion chamber 2 through the air inlet, providing oxygen for the fuel combustion in the combustion chamber 2. The other airflow flowing toward the third side panel 124 passes through the electronic control board 5 as it flows toward the third side panel 124, removing heat generated by the electronic control board 5.

[0055] In one embodiment, if Figure 2 and Figure 5 As shown, the electric control board 5 is connected to the top plate 111 or the bottom plate 121 via the connecting bracket 13, and a gap is left between the electric control board 5 and the third side plate 124. The electric control board 5 is suspended within the cavity 14 by the connecting bracket 13, and the airflow drawn into the cavity 14 by the fan 4 can flow around the electric control board 5, making the heat dissipation of the electric control board 5 more uniform. Moreover, the portion of the other airflow that does not contact the electric control board 5 continues to flow toward the third side plate 124. After being blocked by the end of the third side plate 124 near the bottom plate 121, it can flow toward the top plate 111 and into the gap between the electric control board 5 and the third side plate 124, thereby increasing the contact area with the electric control board 5 and further enhancing the heat dissipation capability.

[0056] Specifically, the connecting bracket 13 includes a vertically arranged connecting plate 131 and a hanging plate 132. The connecting plate 131 is connected to the top plate 111, and the electric control board 5 is connected to one end of the hanging plate 132 away from the connecting plate 131, so that there is a gap around the electric control board 5 and the inner wall of the shell 1 for airflow.

[0057] Of course, in other embodiments, the connecting plate 131 may also be connected to the bottom plate 121 .

[0058] In one embodiment, continue to refer to Figure 4 The housing 1 includes a top shell 11 and a bottom shell 12, and the top shell 11 and the bottom shell 12 are detachably connected. The detachable connection of the bottom shell 12 and the top shell 11 facilitates the installation and maintenance of the feeding mechanism 3, the fan 4 and the electric control board 5. During installation, the driving member 31, the feeding assembly 32 and the combustion chamber 2 are first connected into an assembly, and then the assembly is connected to the top shell 11. Then, the electric control board 5 and the fan 4 are connected to the top shell 11. After assembly, they are placed in the bottom shell 12, and the top shell 11 and the bottom shell 12 are connected by screws. When maintaining the electric control board 5 and the driving member 31, the bottom shell 12 can also be disassembled for maintenance. After maintenance, the bottom shell 12 can be connected to the top shell 11.

[0059] Furthermore, to facilitate installation, the connecting pipe 33 and the feed pipe 321 are configured as an integrated structure. An L-shaped mounting plate 34 communicating with the feed pipe 321 is provided at one end of the feed pipe 321 near the drive member 31. During installation, the connecting pipe 33 is first connected to the feed inlet 1111. The cylindrical combustion chamber 2 is then installed on one end of the top shell 11 through the avoidance opening 1112. The feed screw 322 is then inserted into the feed pipe 321 from the end where the L-shaped mounting plate 34 is located, and the other end is connected to the docking port 222 on the combustion chamber 2. The drive shaft of the drive member 31 is then connected to the feed screw 322, and the drive member 31 is mounted on the L-shaped mounting plate 34. Finally, the connecting plate 131 of the connecting bracket 13 is connected to the top shell 11, and the electronic control board 5 is connected to the hanging plate 132.

[0060] Specifically, the bottom shell 12 includes a bottom plate 121, a first side plate 122, a second side plate 123, and a third side plate 124. The first side plate 122, the second side plate 123, and the third side plate 124 surround the circumference of the bottom plate 121 to form the bottom shell 12 with a top opening and side openings. The top shell 11 includes a top plate 111 and a fourth side plate 112. The top plate 111 is located at the top opening, and the fourth side plate 112 is located at the side opening. The top and side openings of the bottom shell 12 facilitate the placement of the assembled components after the drive member 31, the feed assembly 32, the combustion chamber 2, and the electronic control board 5 are connected to the top shell 11 within the bottom shell 12.

[0061] In one embodiment, both the first side panel 122 and the third side panel 124 are provided with reinforcing ribs 125. To prevent the assembly, after the drive member 31, the feed assembly 32, the combustion chamber 2, and the electronic control board 5 are connected to the top housing 11, from colliding with the ends of the bottom housing 12 when placed on the bottom housing 12, thereby damaging the first side panel 122 and the third side panel 124 of the bottom housing 12, reinforcing ribs 125 are provided on each of the first side panel 122 and the third side panel 124, extending from the outside to the inside, to increase the strength of the first side panel 122 and the third side panel 124.

[0062] In one embodiment, if Figure 6As shown, the air inlet holes include a first air inlet hole 221 and a second air inlet hole 231. The combustion chamber 2 includes a circumferential wall 22 and a bottom wall 23 disposed opposite the open end 21. The first air inlet hole 221 is disposed on the circumferential wall 22, and the second air inlet hole 231 is disposed on the bottom wall 23. The diameter of the first air inlet hole 221 is larger than the diameter of the second air inlet hole 231. Specifically, the combustion chamber 2 is configured as a cylinder with one end open. The circumferential wall 22 is provided with a plurality of first air inlet holes 221 spaced apart, and the bottom wall 23 is provided with a plurality of second air inlet holes 231 spaced apart. Air drawn into the cavity 14 by the fan 4 enters the combustion chamber 2 through the first air inlet holes 221 and the second air inlet holes 231, ensuring that sufficient air enters the combustion chamber 2 and sufficient combustion of the fuel. Setting the diameter of the second air inlet hole 231 smaller can reduce the amount of ash left by the combustion of the fuel in the combustion chamber 2 from falling through the second air inlet hole 231 into the cavity 14. For a small amount of ash that falls into the cavity 14 , the bottom shell 12 can be regularly disassembled for cleaning.

[0063] In one embodiment, continue to refer to Figure 1 and Figure 3 The shell 1 is fixed to the furnace body 200 and / or the lower side of the material box 500 via the mounting bracket 7. The shell 1 is fixed to the furnace body 200 and / or the lower side of the material box 500 via the mounting bracket 7. Two mounting brackets 7 are provided at intervals on the top of the shell 1. One mounting bracket 7 is connected to the bottom of the furnace cavity 201 by screws, and the other mounting bracket 7 is connected to the bottom of the material box 500 by screws.

[0064] In one embodiment, a partition plate 501 is provided within the feed box 500. The partition plate 501 is tilted to separate the feed box 500 into a discharge chamber 502 and an air inlet chamber 503. The discharge chamber 502 is communicable with the feed mechanism 3. A vent is provided on one side of the feed box 500, communicating with the air inlet chamber 503. The air inlet chamber 503 is communicated with the cavity 14 via the fan 4. The feed combustion device is located at the bottom of the feed box 500. Due to the large size of the feed box 500 and the small distance between the feed inlet 1111 and the air inlet 1113, the partition plate 501 is tilted to provide more air intake space for the fan 4 without affecting the fuel storage capacity within the feed box 500. The bottom of the feed box 500 is provided with a discharge port communicating with the feed inlet 1111 and a connecting port communicating with the air inlet 1113. One end of the partition plate 501 is connected to the side wall where the vent is located, and the other end is connected between the discharge port and the connecting port.

[0065] In one embodiment, the oil collection device 100 includes an oil collection pan 101, an oil guide tube 102, and an oil collection barrel assembly 103. Both the oil collection pan 101 and the oil guide tube 102 are located within the oven cavity 201. The oil collection pan 101 is positioned below the grill 600 and collects grease dripping from food on the grill 600. An oil outlet is also provided at the bottom of the oven cavity 201. The oil collection barrel assembly 103 is located outside the bottom of the oven cavity 201 and is connected to the oil outlet end of the oil guide tube 102 through the oil outlet. The oil guide tube 102 connects the oil collection pan 101 and the oil collection barrel assembly 103, allowing grease collected in the oil collection pan 101 to be recovered into the oil collection barrel assembly 103 via the oil guide tube 102. In order to facilitate the collection of grease, the oil collecting pan 101 is tilted downward from the end away from the oil guide pipe 102 to the end close to the oil guide pipe 102. The oil dripping on the oil collecting pan 101 can automatically flow to the oil guide pipe 102 under the action of gravity and be recovered into the oil collecting barrel assembly 103 for cleaning the oil. It can also prevent excessive oil in the oil collecting pan 101 from overflowing into the furnace cavity 201, reducing the cleaning work inside the furnace cavity 201.

[0066] The pellet stove provided in this embodiment utilizes the aforementioned pellet stove feeding and combustion device. By rationally designing the housing 1 structure and positioning the fan 4, a single fan 4 is employed, thereby ensuring sufficient combustion within the combustion chamber 2 while also improving waterproofing and reducing costs. Furthermore, the housing 1 is designed for easy assembly and disassembly, facilitating maintenance of the drive element 31 and the electronic control panel 5, as well as ash removal.

[0067] In the specific contents of the above-mentioned specific implementation methods, the various technical features can be combined in any non-contradictory manner. In order to make the description concise, not all possible combinations of the above-mentioned technical features are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The specific contents of the above-mentioned specific embodiments only express several embodiments of the present invention. Although the description is relatively specific and detailed, it should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements fall within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be based on the appended claims.

Claims

1. The feeding and burning device of the pellet stove is characterized in that: The invention comprises a shell (1), a combustion chamber (2), a feeding mechanism (3), an ignition rod (6), a fan (4) and an electric control board (5); a cavity (14) is provided in the shell (1); the combustion chamber (2), the feeding mechanism (3), the ignition rod (6), the fan (4) and the electric control board (5) are all provided in the cavity (14); the shell (1) is in the shape of a square box; the fan (4) is provided on the top side of the shell (1), and at least one pair of side walls provided along the circumference of the shell (1) are inclined outward from bottom to top; the fan (4) is used to draw outside air into the cavity (14) and form a circulating airflow in the cavity (14) through the side walls of the shell (1).

2. The feeding and burning device of the pellet stove according to claim 1, characterized in that: The shell (1) comprises a top plate (111) and a bottom plate (121) which are arranged opposite to each other, and a first side plate (122), a second side plate (123), a third side plate (124) and a fourth side plate (112) which are sequentially connected between the top plate (111) and the bottom plate (121); the first side plate (122) and the third side plate (124) are arranged opposite to each other, the second side plate (123) and the fourth side plate (112) are arranged opposite to each other, the first side plate (122) and the third side plate (124) are inclined outward from bottom to top, and the first side plate (122) and the third side plate (124) are arranged at intervals along the length direction of the shell (1).

3. The feeding and burning device of the pellet stove according to claim 2, characterized in that: Along the length direction of the shell (1), the top plate (111) is provided with a avoidance opening (1112), a feed opening (1111) and an air inlet (1113) at intervals; the combustion chamber (2) is at least partially provided in the cavity (14); the open end (21) of the combustion chamber (2) extends out of the shell (1) through the avoidance opening (1112); and the combustion chamber (2) is provided with an air inlet hole communicating with the cavity (14); The feeding mechanism (3) comprises a driving member (31) and a feeding assembly (32), one end of the feeding assembly (32) is connected to the driving member (31), and the other end is connected to the combustion chamber (2), the feeding port (1111) is located between the driving member (31) and the combustion chamber (2), and the feeding port (1111) is in communication with the feeding assembly (32); The fan (4) is arranged at the air inlet (1113) and is directly opposite to the driving member (31).

4. The feeding and burning device of the pellet stove according to claim 2, characterized in that: The combustion chamber (2) is arranged close to the first side plate (122), the electric control board (5) is arranged at one end of the feeding mechanism (3) away from the combustion chamber (2), and is arranged close to the third side plate (124), and the electric control board (5) is arranged perpendicular to the second side plate (123).

5. The feeding and burning device of the pellet stove according to claim 4, characterized in that: The electric control board (5) is connected to the top plate (111) or the bottom plate (121) via a connecting bracket (13), and a gap is left between the electric control board (5) and the third side plate (124).

6. The feeding and burning device of the pellet stove according to claim 2, characterized in that: The first side plate (122) and the third side plate (124) are both provided with reinforcing ribs (125).

7. The feeding and burning device of the pellet stove according to claim 2, characterized in that: The housing (1) comprises a top shell (11) and a bottom shell (12), wherein the top shell (11) and the bottom shell (12) are detachably connected; The bottom shell (12) includes the bottom plate (121), the first side plate (122), the second side plate (123) and the third side plate (124), the first side plate (122), the second side plate (123) and the third side plate (124) are surrounded by the bottom plate (121) in a circumferential direction to form the bottom shell (12) having a top opening and a side opening, and the top shell (11) includes the top plate (111) and the fourth side plate (112), the top plate (111) is arranged at the top opening, and the fourth side plate (112) is arranged at the side opening.

8. The feeding and burning device of the pellet stove according to claim 3, characterized in that: The air inlet hole comprises a first air inlet hole (221) and a second air inlet hole (231); the combustion chamber (2) comprises a circumferential wall (22) and a bottom wall (23) arranged opposite to the opening end (21); the first air inlet hole (221) is arranged on the circumferential wall (22); the second air inlet hole (231) is arranged on the bottom wall (23); and the diameter of the first air inlet hole (221) is greater than the diameter of the second air inlet hole (231).

9. A pellet stove, characterized in that The pellet stove comprises a furnace body (200), a material box (500) arranged on the side of the furnace body (200), and a feeding and burning device for a pellet stove according to any one of claims 1 to 8, wherein the shell (1) is fixed to the furnace body (200) and / or the lower side of the material box (500) through a mounting frame (7).

10. The pellet stove according to claim 9, characterized in that A partition plate (501) is provided in the material box (500), and the partition plate (501) is arranged at an angle to divide the material box (500) into a discharge chamber (502) and an air inlet chamber (503), and the discharge chamber (502) can be communicated with the feeding mechanism (3); a ventilation port is provided on one side of the material box (500), and the ventilation port is communicated with the air inlet chamber (503), and the air inlet chamber (503) is communicated with the cavity (14) through the fan (4).

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