Wood chip combustion furnace
By introducing a combination of a stirring rod and a feeding motor into the barbecue grill, the problem of wood chip fuel jamming was solved, achieving efficient heating and temperature control of the wood chip combustion oven and improving the user experience.
Patent Information
- Application Number
- CN202422952224.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-29
- Publication Date
- 2025-11-04
- Estimated Expiration
- 2034-11-29
AI Technical Summary
Existing barbecue grills are prone to jamming when using wood chips fuel with larger diameters, leading to a decrease in heating efficiency.
A wood chip combustion furnace was designed, which uses a stirring rod with a stirring part in the feeding mechanism. The stirring part extends along the axial direction of the stirring rod to stir and push the wood chip fuel to prevent blockage. The stirring rod is driven to rotate by the feeding motor to ensure that the fuel enters the combustion chamber smoothly.
It effectively prevents wood chip fuel from clogging in the feeding pipe, ensuring heating efficiency, and precisely controls the combustion temperature through the control panel, improving the cooking experience and safety.
Smart Images

Figure CN223504071U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of combustion furnace technology, and in particular to a wood chip combustion furnace. Background Technology
[0002] The biggest feature of a barbecue grill is that it can grill and fry food simultaneously, or it can use one function alone. It features an ingenious design, is easy to install, and is a popular style in Europe and America. It is suitable for large outdoor or family gatherings. Also known as a barbecue grill or charcoal grill, its working principle is to use air convection to heat food using the heat generated by burning charcoal or environmentally friendly charcoal.
[0003] In related technologies, barbecue grills mostly use small-diameter combustion particles as the fire source. Due to the limited space of the feeding pipe, when using larger wood chips or other fuels, the problem of material jamming can easily occur. Utility Model Content
[0004] The main purpose of this invention is to propose a wood chip combustion furnace, which aims to solve the problem of material jamming when using wood chip fuel with a larger diameter.
[0005] To achieve the above objectives, the wood chip combustion furnace includes a combustion furnace body with a combustion chamber and a feeding mechanism connected to the combustion furnace body; the feeding mechanism is provided with a feeding pipe and a stirring rod, the feeding channel of the feeding pipe is connected to the combustion chamber, the stirring rod is rotatably disposed in the feeding channel of the feeding pipe, and the outer peripheral surface of the stirring rod is provided with a stirring part, which extends along the axial direction of the stirring rod.
[0006] In one embodiment of this utility model, the stirring part is a spiral protrusion.
[0007] In one embodiment of the present invention, the end of the stirring part along the radial direction of the stirring rod is provided with a stirring passage on the inner wall of the feeding pipe.
[0008] In one embodiment of the present invention, the feeding mechanism further includes a feeding motor, the feeding motor fixing the end of the feeding pipe away from the combustion furnace body, and the stirring rod being connected to the rotating output shaft of the feeding motor.
[0009] In one embodiment of the present invention, the feeding mechanism further includes a feeding funnel, which is fixedly connected to the outer side wall of the combustion furnace body; the feeding funnel has a feed inlet and a discharge outlet connected to the feed inlet, and the discharge outlet is connected to the feeding channel of the feeding pipe.
[0010] In one embodiment of the present invention, the feeding mechanism further includes a discharge assembly, which includes a discharge funnel and a discharge baffle; the inlet of the discharge funnel is connected to the material passage of the feeding funnel, and the discharge baffle is slidably disposed at the inlet of the discharge funnel.
[0011] In one embodiment of the present invention, the feeding mechanism further includes a buffer net and a vibrating assembly. The buffer net is disposed at one end of the feeding funnel near the inlet. The vibrating assembly includes a stirring motor fixedly connected to the feeding funnel and a vibrating rod connected to the output end of the stirring motor. The vibrating end of the vibrating rod is located between the buffer net and the outlet.
[0012] In one embodiment of the present invention, the combustion furnace body is provided with a fire pot in the combustion chamber, and the combustion space of the fire pot is connected to the feeding channel of the feeding pipe; the outer peripheral wall of the fire pot is provided with a plurality of air dampers, and each air damper is spaced apart along the outer peripheral wall of the fire pot.
[0013] In one embodiment of the present invention, the wood chip combustion furnace is further provided with a control panel, which is configured to control the combustion temperature of the combustion chamber.
[0014] In one embodiment of the present invention, the combustion furnace body is further provided with a heat preservation chamber and a side platform extension, the heat preservation chamber being located at the lower part of the combustion chamber; the side platform extension being located on the side of the combustion furnace body opposite to the feeding mechanism.
[0015] In this technical solution, the wood chip combustion furnace can use either small-diameter combustion particles or large-diameter wood chip fuel. Specifically, when the wood chip fuel is fed into the feeding pipe, the stirring rod can rotate synchronously. During the rotation of the stirring rod, the protruding stirring part of the stirring rod can stir the wood chip fuel, thereby preventing the wood chip fuel from getting blocked in the feeding pipe and causing jamming. At the same time, the stirring part extends along the axial direction of the stirring rod, which can push the wood chip fuel towards the combustion chamber, further preventing jamming and ensuring heating efficiency. Attached Figure Description
[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.
[0017] Figure 1 This is a perspective view of an embodiment of the wood chip combustion furnace proposed in this utility model;
[0018] Figure 2 For along Figure 1 Sectional view of line AA in the middle;
[0019] Figure 3 A three-dimensional schematic diagram of a partial structure of another embodiment of the wood chip combustion furnace proposed in this utility model;
[0020] Figure 4 This is a perspective view of an embodiment of the feeding mechanism and fire cupping device proposed in this utility model;
[0021] Figure 5 For along Figure 4 Sectional view of the middle BB line;
[0022] Figure 6 This is a perspective view of another embodiment of the wood chip combustion furnace proposed in this utility model;
[0023] Figure 7 This is a perspective view of an embodiment of the control panel proposed in this utility model;
[0024] Figure 8 This is a schematic diagram of the communication relationship of the wood chip combustion furnace proposed in this utility model;
[0025] Figure 9 for Figure 6 Partial structural diagram;
[0026] Figure 10 for Figure 2 The front view;
[0027] Figure 11 For along Figure 10 Sectional view of line AA in the middle;
[0028] Figure 12 for Figure 9 Partial structural explosion diagram;
[0029] Figure 13 for Figure 12 Enlarged structural diagram at point B;
[0030] Figure 14 This is a perspective view of an embodiment of the sideburn oven proposed in this utility model.
[0031] Explanation of icon numbers:
[0032] 10. Combustion furnace body; 101. Fire pot; 101a. Air damper; 10a. Combustion chamber; 20. Feeding mechanism; 201. Feeding pipe; 202. Stirring rod; 203. Stirring part; 20a. Stirring passage; 204. Feeding motor; 205. Feeding funnel; 206. Discharge funnel; 207. Discharge baffle; 208. Buffer screen; 209. Stirring motor; 210. Vibrating rod; 30. Control panel; 31. Controller; 311. Temperature detection unit; 312. Temperature preset unit; 313. Timing unit; 314. Timer unit; 32. Display module; 33. Control buttons; 34. Switching button; 3 5. Food temperature detection probe; 36. Wireless probe; 37. Feeding start / stop button; 38. Second control button; 40. Insulation chamber; 50. Side platform extension; 51. Second combustion chamber; 52. Gas placement chamber; 53. Ignition device; 54. Heat spreader; 55. Second cover; 56. Side oven; 561. Supporting part; 562. Support leg; 5621. First support section; 5622. Second support section; 50a. Combustion space; 50b. Baking space; 50b1. First insertion hole; 50b2. Second insertion hole; 57. Diffusion net; 58. Injector tube; 60. Insulation box; 61. Insulation net; 62. Heating tube.
[0033] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation
[0034] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present utility model.
[0035] It should be noted that if the embodiments of this utility model involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indicators will also change accordingly.
[0036] Furthermore, if the embodiments of this utility model involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the use of "and / or" or "and / or" throughout the text includes three parallel solutions. For example, "A and / or B" includes solution A, solution B, or a solution where both A and B are satisfied simultaneously. Furthermore, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this utility model.
[0037] Please refer to the wood chip combustion stove proposed in this utility model. Figure 1 and Figure 2 The wood chip combustion furnace includes a combustion furnace body 10 having a combustion chamber 10a and a feeding mechanism 20 connected to the combustion furnace body 10. The feeding mechanism 20 is provided with a feeding pipe 201 and a stirring rod 202. The feeding channel of the feeding pipe 201 is connected to the combustion chamber 10a. The stirring rod 202 is rotatably disposed in the feeding channel of the feeding pipe 201. The outer peripheral surface of the stirring rod 202 is provided with a stirring part 203, which extends along the axial direction of the stirring rod 202.
[0038] In this technical solution, the wood chip combustion furnace can use either small-diameter combustion particles or large-diameter wood chip fuel. Specifically, when the wood chip fuel is fed into the feeding pipe 201, the stirring rod 202 can rotate synchronously. During the rotation of the stirring rod 202, the protruding stirring part 203 of the stirring rod 202 can stir the wood chip fuel, thereby preventing the wood chip fuel from getting blocked in the feeding pipe 201 and causing a jamming problem. At the same time, the stirring part 203 extends along the axial direction of the stirring rod 202, which can push the wood chip fuel towards the combustion chamber 10a, further preventing the jamming problem and thus ensuring heating efficiency.
[0039] The wood chip incinerator can be used indoors or outdoors for baking or roasting food. The incinerator body 10 includes a furnace body and a cover. The cover is hinged to the furnace body to form a combustion chamber 10a. During the heating process, the cover tightly closes the furnace body to create a sealed space within the combustion chamber 10a, thus preventing heat loss. Specifically, a grilling rack or baking tray is provided in the combustion chamber 10a. The grilling rack or baking tray can be screwed or inserted into screw holes or fixed at different heights to change its height within the combustion chamber 10a, providing suitable space for heating different ingredients. The combustion chamber 10a contains an area where the combustion medium burns. The grilling rack or baking tray has a certain distance from the combustion area. Within this space, an oil drip tray, heat-conducting plate, or other structures can be placed to prevent dust accumulation, retain heat, and collect oil. The heat generated by the combustion medium circulates within the combustion chamber 10a, heating the food within the entire chamber. During the heating process, heat also flows to the outside through the furnace body and cover.
[0040] To supplement the heat of the combustion chamber 10a, a feeding mechanism 20 is provided on one side of the combustion furnace body 10. The feeding mechanism 20 is responsible for conveying solid combustion media such as wood chips into the combustion chamber 10a. To prevent the solid combustion media from getting stuck during the conveying process, the feeding mechanism is equipped with a feeding pipe 201 and a stirring rod 202. The feeding channel of the feeding pipe 201 is connected to the combustion chamber 10a. The stirring rod 202 is rotatably mounted in the feeding channel of the feeding pipe 201. The outer peripheral surface of the stirring rod 202 is provided with a stirring part 203. The stirring part 203 moves along the stirring rod 202. The stirring rod 202 extends axially, so that as the solid combustion medium enters the combustion chamber 10a along the feeding channel, the continuously rotating stirring rod 202, in conjunction with the stirring part 203, can push the solid combustion medium toward the combustion chamber 10a. Specifically, the stirring part 203 is wave-shaped, which can exert a pushing and pulling effect on the solid combustion medium during rotation, helping the solid combustion medium to smoothly enter the combustion chamber 10a. In another embodiment, the stirring part 203 can be composed of a series of cylindrical protrusions, so that the stirring part 203 generates friction and pushing action on the solid combustion medium during rotation. As described above, the stirring part 203 extends axially along the stirring rod 202, so that the stirring part 203 can provide uniform stirring force along the entire length of the stirring rod 202, ensuring that sawdust or other materials are evenly distributed during transportation, avoiding accumulation or gaps. Furthermore, during transportation, because the stirring action can continuously act on the solid combustion medium, it keeps the solid combustion medium flowing, effectively preventing the solid combustion medium from clogging within the stirring rod 202. It is understandable that the stirring rod 202 can be manually driven or motor driven, and no limitation is made here.
[0041] In one embodiment of this utility model, please refer to Figure 2 and Figure 4 The stirring part 203 is a spiral protrusion.
[0042] In this embodiment, the stirring part 203 and the stirring rod 202 are an integral structure to prevent detachment. Specifically, the stirring part 203 is designed as a spiral protrusion. The spiral protrusion shape of the stirring part 203 can provide continuous rotational force during the stirring process, so that the solid combustion medium is continuously subjected to force during the stirring process, thereby maintaining continuous stirring and forward movement effects. At the same time, it helps the solid combustion medium to be evenly distributed during the stirring process, reducing the accumulation and gaps of the solid combustion medium around the stirring rod 202, ensuring the uniformity of the solid combustion medium dispersion, and thus avoiding material jamming. Furthermore, to clarify the anti-jamming function of the spiral protrusion stirring part 203, the spiral direction of the stirring part 203 is defined as the first direction. At this time, the forward rotation of the stirring rod 202 can push the solid combustion medium forward. When a material jamming problem occurs, reversing the stirring rod 202 can drive the solid combustion medium backward, thereby solving the material jamming problem. How to determine that a solid combustion medium jamming problem has occurred in the wood chip combustion furnace will be explained later.
[0043] In one embodiment of this utility model, please refer to Figure 4 and Figure 5 The stirring part 203 is provided with a stirring passage 20a at the end of the stirring rod 202 in the radial direction and the inner wall of the feeding pipe 201.
[0044] In this embodiment, the radial direction of the stirring rod 202 is the diameter direction of the stirring rod, and the stirring part 203 protrudes from the outer surface of the stirring rod 202 along this direction. In order to prevent the large volume of solid combustion medium from getting stuck between the end of the stirring part 203 and the inner wall of the feeding pipe 201 during the movement, a stirring passage 20a is formed between the end of the stirring part 203 and the inner wall of the feeding pipe 201. In this way, the feeding pipe 201 has sufficient space for the solid combustion medium to move during the movement. Furthermore, in order to make it easier to explain the benefits of the spiral protrusion stirring part 203 combined with the stirring passage 20a, it is defined that: the central axis of the stirring rod 202 is divided into any number of points along the axial direction (length direction). When the stirring part 203 is set as a spiral protrusion, there is only one stirring part 203 on both sides of the radial direction at each point. In this way, the space of the stirring passage 20a is expanded, and the flowability of the solid combustion medium in the feeding pipe 201 is enhanced.
[0045] In one embodiment of this utility model, please refer to Figure 3 The feeding mechanism 20 also includes a feeding motor 204, which fixes the end of the feeding pipe 201 away from the combustion furnace body 10, and the stirring rod 202 is connected to the rotating output shaft of the feeding motor 204.
[0046] In this embodiment, the feeding motor 204 is fixed at the end of the feeding pipe 201 away from the combustion furnace body 10, which can reduce the impact of heat on the electrical performance of the motor and extend the service life of the feeding motor 204. The feeding motor 204 drives the stirring rod 202 to rotate, avoiding the danger of manual rotation. Furthermore, by setting the output parameters of the feeding motor 204, the stirring rod 202 can rotate at a constant speed. In addition, an electronic control system can be set to control the start and stop of the feeding motor 204 in real time.
[0047] In one embodiment of this utility model, please refer to Figure 3 The feeding mechanism 20 also includes a feeding funnel 205, which is fixedly connected to the outer wall of the combustion furnace body 10. The feeding funnel 205 has a feed inlet and a discharge outlet connected to the feed inlet, and the discharge outlet is connected to the feeding channel of the feeding pipe 201.
[0048] In this embodiment, the discharge port at the lower end of the feeding funnel 205 is connected to the feeding channel of the feeding pipe 201, thereby achieving directional feeding. At the same time, the feeding funnel 205 provides a convenient feeding port, allowing operators to easily add sawdust or other solid combustion media into the combustion furnace. Furthermore, the feeding funnel 205 can temporarily store a certain amount of fuel, so that even if feeding is stopped for a short time during continuous combustion, the combustion process will not be affected. In addition, the feeding funnel 205 is hinged with a funnel cover to cover the feeding port of the feeding funnel 205, preventing rapid heat loss and ensuring the cleanliness of the funnel.
[0049] In one embodiment of this utility model, please refer to Figure 3 The feeding mechanism 20 also includes a discharge assembly, which includes a discharge funnel 206 and a discharge baffle 207. The inlet of the discharge funnel 206 is connected to the material passage of the feeding funnel 205, and the discharge baffle 207 is slidably disposed at the inlet of the discharge funnel 206.
[0050] In this embodiment, the unloading funnel 206 is located on the side of the loading funnel 205. The inlet of the unloading funnel 206 is connected to the material passage of the loading funnel 205. The unloading baffle 207 is slidably disposed at the inlet of the unloading funnel 206. In this way, when the loading funnel 205 is blocked, the unloading baffle 207 is moved to connect the unloading funnel 206 with the loading funnel 205, providing an additional bypass passage for the loading funnel 205 to quickly clear the blockage and ensure the normal supply of fuel. At the same time, moving the unloading baffle 207 can quickly remove the unburned residual fuel. In order to realize the sliding of the unloading baffle 207, a chute structure is designed at the inlet of the unloading funnel 206, or a chute structure is formed between the unloading funnel 206 and the loading funnel 205, with the unloading baffle 207 located in the chute structure. In this way, the unloading baffle 207 can be pushed to move.
[0051] In one embodiment of this utility model, please refer to Figure 3 The feeding mechanism 20 also includes a buffer net 208 and a vibrating assembly. The buffer net 208 is located at one end of the feeding hopper 205 near the inlet. The vibrating assembly includes a stirring motor 209 fixedly connected to the feeding hopper 205 and a vibrating rod 210 connected to the output end of the stirring motor 209. The vibrating end of the vibrating rod 210 is located between the buffer net 208 and the outlet.
[0052] In this embodiment, to prevent the solid combustion medium from directly impacting the feeding hopper 205 during feeding, a buffer net 208 is provided at the end of the feeding hopper 205 near the inlet. Thus, the solid combustion medium first falls onto the buffer net 208, and after being buffered by the buffer net 208, it falls slowly into the feeding hopper 205. Simultaneously, from a safety perspective, the buffer net 208 prevents hands from entering, improving safety performance. Furthermore, to prevent the buffered and decelerated solid combustion medium from causing jamming in the feeding hopper 205, a vibrating assembly is provided between the buffer net 208 and the outlet of the feeding hopper 205. The vibrating assembly includes a stirring motor 209 fixedly connected to the feeding hopper 205 and a vibrating rod 210 connected to the output end of the stirring motor 209. Thus, during feeding, the stirring motor 209 drives the vibrating rod 210 to vibrate, thereby preventing the solid combustion medium from concentrating in the feeding hopper 205 and clogging the outlet.
[0053] In one embodiment of this utility model, please refer to Figure 2 , Figure 4 as well as Figure 5 The combustion furnace body 10 has a fire pot 101 in the combustion chamber 10a. The combustion space of the fire pot 101 is connected to the feeding channel of the feeding pipe 201. The outer peripheral wall of the fire pot 101 is provided with multiple air dampers 101a, and each air damper 101a is arranged at intervals along the outer peripheral wall of the fire pot 101.
[0054] In this embodiment, the fire pot 101 serves as the combustion zone of the combustion chamber 10a. The fire pot 101 is fixed to the sheet metal parts inside the combustion chamber 10a by disc screws. Thus, after one batch of food has been roasted, the fire pot 101 can be removed by unscrewing the disc screws, thereby removing the combustion ash from the fire pot 101 for the purpose of cleaning. The side wall of the fire pot 101 has a docking hole, and the discharge end of the feeding pipe 201 is fixedly connected to the docking hole of the fire pot 101, so that the combustion space of the fire pot 101 is connected to the feeding channel of the feeding pipe 201. Furthermore, in order to improve the combustion efficiency of the solid combustion medium, the outer peripheral wall of the fire pot 101 is provided with multiple air dampers 101a. Each air damper 101a is spaced along the outer peripheral wall of the fire pot 101. By setting the air dampers 101a, the combustion space of the fire pot 101 and the air supply channel of the wood chip combustion furnace can be connected to enhance gas flow and improve combustion efficiency.
[0055] In one embodiment of this utility model, please refer to Figure 1 The wood chip incinerator is also equipped with a control panel 30, which is configured to control the combustion temperature of the combustion chamber 10a.
[0056] In this embodiment, the control panel 30 includes a display module, a temperature detection port, and control buttons. By pressing different control buttons, the heating temperature, heating time, and pause time of the wood chip combustion oven can be set, thereby allowing different heating treatments to be applied to different ingredients to ensure the flavor of each food. At the same time, the temperature detection port of the control panel 30 allows a temperature probe (temperature sensor) to be inserted to detect the temperature of the combustion chamber 10a. Furthermore, the display module can display the temperature of the combustion chamber 10a, the heating temperature, the heating time, and the pause time, etc. By setting the control panel 30, precise control of the combustion temperature can be achieved, thereby optimizing the cooking experience. Specifically, in this technical solution, a room temperature detection probe is fixedly installed in the combustion chamber 10a. The room temperature detection probe is electrically connected to the control panel 30. The control panel 30 receives the detected temperature from the room temperature detection probe and controls the rotation number of the feeding motor 204, thereby controlling the amount of movement of the combustion medium pushed by the stirring rod 202 through the feed tube 201. In this way, it is effectively avoided that when too much material is added, all the combustion medium will enter the combustion chamber 10a, avoiding the problem of food burning due to excessive temperature in the combustion chamber 10a. Similarly, when the detected chamber temperature is too low, the feeding motor 204 can be continuously driven to rotate, so that the combustion chamber 10a enters the heating state.
[0057] The room temperature detection probe can provide real-time feedback of the chamber temperature to the control panel 30. The control panel 30 controls the number of rotations of the feeding motor 204 based on the chamber temperature. For example, if the maximum temperature limit of the wood chip combustion furnace is set to 300°F (Fahrenheit), the controller 31 knows from the temperature feedback of the room temperature detection probe that the real-time temperature of the combustion chamber 10a is 180°F (Fahrenheit). The control program presets that for every 1°F difference, the feeding motor 204 needs to rotate 50 times. Simultaneously, based on the structural parameters of the stirring rod 202, the control panel can determine the amount of solid combustion medium entering the combustion chamber 10a after the stirring rod 202 rotates 50 times. The combustion chamber 10a is heated from 180°F to 300°F. It is understood that, because the room temperature detection probe detects the temperature of the combustion chamber 10a in real time, the temperature of the combustion chamber 10a reaches the maximum limit temperature during the process of the stirring rod 202 pushing the solid combustion medium. At this time, the control panel 30 controls the feeding motor 204 to stop operating. Based on this, since the heat of the wood chip combustion furnace is always in a state of loss, when the wood chip combustion furnace is in operation, the control panel 30 can always control the feeding motor 204 to rotate according to the room temperature detection probe so that the temperature of the combustion chamber 10a is at the required temperature.
[0058] In one embodiment of this utility model, such as Figure 7 As shown, the control panel 30 includes a controller 31 and a display module 32. The display module 32 is equipped with a chamber temperature display screen, which is electrically connected to the controller 31. The controller 31 is configured to receive the detected temperature from the room temperature detection probe and drive the feeding motor 204 to rotate. The chamber temperature display screen is configured to display the detected temperature from the room temperature detection probe. Thus, by receiving real-time temperature data from the room temperature detection probe through the controller 31, the rotation of the feeding motor 204 can be precisely controlled, thereby accurately adjusting the temperature inside the combustion chamber 10a, which helps to maintain the stability and efficiency of the combustion process. Furthermore, the chamber temperature display screen in the display module 32 can intuitively display the current temperature, allowing users to easily monitor and adjust the combustion process, thus improving the user experience.
[0059] Specifically, the controller 31 is equipped with a temperature detection unit 311, and the chamber temperature display screen is electrically connected to the temperature detection unit 311. The temperature detection unit 311 is configured to receive the detected temperature from the room temperature detection probe and drive the feeding motor 204 to rotate. By integrating the temperature detection unit 311 into the controller 31, integrated temperature monitoring and management are achieved. This integrated design simplifies the system structure, reduces the connection points between components, and thus reduces the failure rate. At the same time, the temperature detection unit 311 directly receives the signal from the room temperature detection probe and drives the feeding motor 204 to rotate. This direct response mechanism can adjust the temperature of the combustion chamber 10a more quickly, improving the system's response speed and efficiency. Based on this, the temperature detection unit 311 can accurately read the temperature data of the probe, ensuring the accuracy of the rotation of the feeding motor 204, thereby achieving fine control of the temperature of the combustion chamber 10a.
[0060] Furthermore, such as Figure 7 As shown, and in combination Figure 8The control panel 30 also includes control buttons 33, and the controller 31 is further equipped with a temperature preset unit 312. The control buttons 33 are electrically connected to the temperature preset unit 312. The temperature preset unit 312 is configured to set the maximum temperature of the combustion chamber 10a, and the control buttons 33 are configured to adjust the maximum temperature of the combustion chamber 10a. The control buttons 33 include up and down buttons, and different triggering methods can be set to achieve temperature setting, such as short press to increase or decrease and long press to continuously increase or decrease. No specific method is specified here. By quickly adjusting the maximum temperature of the combustion chamber 10a, the user can more effectively control the roasting process of the wood chip combustion oven and improve roasting efficiency. The configuration of 312 ensures that the combustion chamber 10a will not exceed the safe temperature range, reducing potential risks during the baking process. Based on this, by precisely controlling the combustion temperature, unnecessary fuel consumption can be reduced, achieving the goal of energy conservation and environmental protection. Furthermore, the control panel 30 also includes a feeding start / stop button 37, which is electrically connected to the controller 31. The feeding start / stop button 37 is configured to control the start and stop of the feeding motor 203. Thus, by pressing the feeding start / stop button 37, the working state of the feeding motor 203 can be manually controlled, thereby controlling the amount of combustion medium delivered. At the same time, the feeding method can be forcibly stopped, thereby improving safety performance.
[0061] In one embodiment of this utility model, the display module 32 is further provided with a preset cavity temperature display screen, which is electrically connected to the temperature preset unit 312. The preset cavity temperature display screen is configured to display the maximum temperature of the set combustion chamber 10a. In this way, the user can clearly know the current safe upper limit of the combustion chamber 10a, which helps to prevent overheating. By setting the cavity temperature display screen and the preset cavity temperature display screen, the roasting visualization of the wood chip combustion oven can be enhanced.
[0062] Furthermore, in one embodiment of this utility model, as Figure 7 As shown, and in combination Figure 8 The control panel 30 also includes a food temperature detection probe 35, which is movably mounted on the control panel 30 and electrically connected to the controller 31. The display module 32 also includes a meat temperature display screen, which is electrically connected to the controller 31. The meat temperature display screen is configured to display the temperature detected by the food temperature detection probe 35. Specifically, the control panel 30 has a probe socket for placing the food temperature detection probe 35. When it is necessary to determine whether the food is cooked through and safe to eat after a certain period of time, the user opens the cover, inserts the food temperature detection probe 35 into the food, and then reads the temperature detected by the meat temperature display screen to determine the edibility of the food. It is understood that the food temperature detection probe 35 can be a wired probe or a wireless probe, which is not limited here.
[0063] Further, please refer to Figure 8The display module 32 is also equipped with a preset time display screen, and the controller 31 is also equipped with a timing unit 313. The preset time display screen and the control button 33 are electrically connected to the timing unit 313. The control button 33 is also configured to set the heating time of the oven body 10, and the preset time display screen is configured to display the set heating time of the oven body 10. In this way, users can set different heating times for different ingredients through the control button 33 to ensure the taste of different foods. At the same time, the preset time display screen allows users to know their heating time, so as to use the gap in the heating time of the ingredients to prepare other ingredients or prepare for the meal.
[0064] In one embodiment, the display module 32 is further provided with a countdown time display screen, and the controller 31 is further provided with a timing unit 314, which is electrically connected to the timing unit 313. The countdown time display screen is configured to display the remaining time of the set heating time of the oven body 10. Thus, the user sets the heating time of the oven body 10 through the control button 33, the timing unit 313 receives these settings, and then the timing unit 314 starts when heating begins and begins the countdown. The countdown time display screen displays the remaining time calculated by the timing unit 314, allowing the user to know the baking progress at any time. When the timing unit 314 reaches zero, the controller 31 can perform a preset operation, such as turning off the heating, thereby completing the baking process. After baking is completed, the user can use the food temperature detection probe 35 to detect the food temperature, thereby deciding whether to reheat or bake the next ingredient.
[0065] In one embodiment of this utility model, such as Figure 7 As shown, and in combination Figure 8 The control panel 30 also includes a switching button 34, which is electrically connected to the timing unit 313 and the preset cavity temperature display. Specifically, by short-pressing the switching button 34, the temperature unit of the preset cavity temperature display and the cavity temperature display can be changed between Fahrenheit and Celsius; by long-pressing the switching button 34 for 3 seconds, the user can switch to the timing setting interface for setting and viewing the timing settings; by long-pressing the switching button 34 for 5 seconds, the user can turn the timing settings on / off. This effectively enhances the practicality of the wood chip combustion furnace and meets user needs.
[0066] Furthermore, in one embodiment of this utility model, the control panel 30 also includes a wireless module, which is electrically connected to the controller 31. The wireless module is configured to communicate with a smart terminal, so that users can view the working status of the wood chip incinerator in real time, such as heating time and chamber temperature, and remotely control the start and stop of the wood chip incinerator from a location far away from the incinerator via a mobile phone, tablet computer, or other device. It is understood that the wireless module can be a Bluetooth module, a WIFI module, or both, and is not limited here.
[0067] Furthermore, the controller 31 also includes a frequency conversion switching unit, which is electrically connected to the feed motor 203 and the second control button 38. The frequency conversion switching unit is configured to control the current input value of the feed motor 203. Specifically, when the wood chip combustion furnace uses wood chips as the combustion source, and the wood chips are relatively large, in order to facilitate the control of the temperature of the combustion chamber, pressing the second control button 38 controls the frequency conversion switching unit to make the wood chip combustion furnace enter the first combustion state. In the first combustion state, the frequency conversion switching unit controls the feed motor 203 to be driven by the first current. At this time, the feed motor 203 rotates at a relatively slow first rotation speed, thereby controlling the speed at which the push rod pushes the wood chips into the combustion chamber. It can be understood that the first rotation speed can be pre-input in the controller. For example, in the first combustion state, the first rotation speed is [value missing]. The feed motor 203 rotates 10 times per minute, which is not limited here. If pellet fuel is required as the combustion source, and the pellet fuel is small in size, in order to quickly heat up the combustion chamber, press the second control button 38 to control the switching frequency converter to make the wood chip combustion furnace enter the second combustion state. In the second combustion state, the switching frequency converter controls the feed motor 203 to be driven by a second current. At this time, the value of the second current is greater than the value of the first current, and the feed motor 203 rotates at a faster second rotation speed. The second rotation speed is greater than the first rotation speed, thereby accelerating the speed at which the push rod pushes the pellet fuel into the combustion chamber. It can be understood that the second rotation speed can be preset in the controller. For example, in the second combustion state, the first rotation speed is 20 rotations per minute for the feed motor 203, which is not limited here.
[0068] Furthermore, the controller 31 also includes a current detection unit and a motor reversing unit. The current detection unit is configured to detect the motor current output value. The wood chip combustion furnace determines whether a material jamming problem has occurred based on the magnitude of the motor's output current. Specifically, the controller 31 sets a feeding current threshold. The current detection unit detects the motor's output current value in real time. When the current detection unit detects that the output current value is less than the feeding current threshold, it generates a corresponding judgment signal (material jamming signal). The controller 31 determines that a material jamming problem has occurred in the wood chip combustion furnace based on this signal. At this time, the motor reversing unit provided by the controller 31 starts to operate. That is, the reversing unit outputs a reversing current to the motor. Driven by this reversing current, the motor drives the push rod 202 to reverse, thereby causing the solid combustion medium to move backward, thus resolving the material jamming problem. It can be understood that the reversing current can be the maximum value of the feeding current threshold or any value within the feeding current threshold, and is not limited here.
[0069] Furthermore, in one embodiment of this utility model, the control panel 30 also includes a wireless module, which is electrically connected to the controller 31. The wireless module is configured to communicate with a smart terminal, so that users can view the working status of the wood chip incinerator in real time, such as heating time and chamber temperature, and remotely control the start and stop of the wood chip incinerator from a location far away from the incinerator via a mobile phone, tablet computer, or other device. It is understood that the wireless module can be a Bluetooth module, a WIFI module, or both, and is not limited here.
[0070] Furthermore, the wood chip incinerator is equipped with a wireless probe 36 on the control panel. The control panel 30 also includes a wireless module, which is electrically connected to the controller 31. The wireless probe 36 is communicatively connected to the wireless module. The wireless module is configured to communicate with a smart terminal. Thus, users can monitor the working status of the wood chip incinerator in real time, such as heating time and chamber temperature, from a location away from the incinerator via mobile phones, tablets, or other devices, and remotely control the start and stop of the incinerator. At the same time, when using the wireless probe 36 to detect the temperature of food, users can also view the temperature of the food on the smart terminal using the communication function of the wireless module. It is understood that the wireless module can be a Bluetooth module, a WIFI module, or a combination of both, and is not limited here.
[0071] In one embodiment of this utility model, please refer to Figure 6 The combustion furnace body 10 is also provided with a heat preservation chamber 40 and a side platform extension 50. The heat preservation chamber 40 is located at the lower part of the combustion chamber 10a; the side platform extension 50 is located on the side of the combustion furnace body 10 opposite to the feeding mechanism 20.
[0072] In this embodiment, the heat preservation chamber 40 is located at the lower part of the combustion chamber 10a. Multiple heating tubes and a heating mesh tray are provided inside the heat preservation chamber 40. The cooked food can be placed on the heating mesh tray inside the heat preservation chamber 40. When the heating tubes are powered on, they can continuously heat the food, thus preventing it from cooling down. Furthermore, a side platform extension 50 is provided on one side of the combustion furnace body 10 opposite to the feeding mechanism 20. In one embodiment, the side platform extension 50 is provided with multiple hooks to hold an oil container. In another embodiment, the side platform extension 50 is composed of multiple sheet metal parts, and a gas stove is placed inside. A frying pan can be placed on the upper part of the side platform extension 50. The frying pan is rotatably connected to the combustion furnace body 10 via a hinge structure, thus achieving folding and storage. When using the wood chip combustion furnace, the user can prepare other foods on the frying pan while the combustion chamber 10a is working, thereby improving food processing efficiency. For details, please refer to... Figures 9-14The side extension 50 is the second furnace body. Each furnace body has a combustion space, allowing multiple foods or different types of foods to be heated simultaneously. The second furnace body includes a second combustion chamber 51, a gas placement chamber 52, and an ignition device 53. The gas placement chamber 52 is located below the second combustion chamber 51 and is used to hold a gas canister. The gas outlet of the ignition device 53 is connected to the combustion space 50a of the second combustion chamber 51, and the gas outlet of the ignition device 53 can also be connected to the gas canister in the gas placement chamber 52. Based on this, the gas entering the combustion space 50a can be ignited by the ignition device 53 to provide heat for heating food. It can be understood that the second combustion chamber 51 and the gas placement chamber 52 are formed by multiple sheet metal parts and enclose each other to form independent spaces. The ignition device 53 includes a rotary knob, a solenoid valve, a gas pipe, a main burner tube, and an electric thermocouple rod. The two ends of the solenoid valve are connected to a gas pipe, forming the gas inlet and gas outlet (ejector tube 58) of the ignition device 53. The main flame tube and the electric coupler are electrically connected to the solenoid valve. The control knob is rotated to make the electric coupler generate an electric spark, thereby igniting the gas coming out of the main flame tube. Specifically, the gas outlet of the ignition device 53 is connected to the combustion space 50a of the second combustion chamber 51. The gas outlet of the ignition device 53 can be connected to the gas canister in the gas placement chamber 52. The ignition ends of the main flame tube and the electric coupler face the combustion space 50a, thus realizing the baking function of the second furnace body. The second combustion chamber 51 and the gas placement chamber 52 of the second furnace body are distributed vertically. The gas placement chamber 52 is located below the second combustion chamber 51 and is used to place the gas canister. At the bottom of the gas placement chamber 52, there is a limiting hole, and the gas canister seat is placed in the limiting hole to prevent the gas canister from becoming loose in the second furnace body.
[0073] Furthermore, the second combustion chamber 51 is equipped with a heat spreader 54, which divides the combustion chamber of the second combustion chamber 51 to form a baking space 50b and a combustion space 50a. Specifically, the gas outlet of the ignition device 53 (i.e., the gas outlet pipe connected to the solenoid valve) is located in the combustion space 50a, while the food is placed in the baking space 50b. The combustion space 50a and the baking space 50b are isolated by the heat spreader 54. In this way, the heat from the combustion space 50a is evenly transferred to the baking space 50b through the heat spreader 54, avoiding uneven heating of the food. The heat spreader 54 is made of ceramic material. Ceramic heat spreaders 54 can withstand high temperatures and will not deform or be damaged during high-temperature cooking. At the same time, it has good thermal conductivity and can effectively transfer heat to ensure the uniform heating of the food. It is understood that the material of the heat spreader 54 can also be stainless steel, cast iron, etc., and is not limited here.
[0074] To achieve a sealed baking effect, the wood chip combustion oven also includes a second cover 55, which is hinged to the second combustion chamber 51 via a hinge structure, thereby enabling the opening and closing of the second cover 55 and the second oven body.
[0075] In one embodiment of this utility model, the wood chip combustion oven also includes a side oven grill 56, which is vertically and vertically mounted in the baking space 50b. By adjusting the height of the side oven grill 56 in the baking space 50b, the distance between the food and the heat spreader 54 can be changed to avoid direct contact with high temperature. On the other hand, it can also provide sufficient space for food of different shapes to be placed in the baking space 50b. It is understood that the side oven grill 56 includes, but is not limited to, structures such as grill racks and grill pans, and is not limited here.
[0076] Specifically, the hot pot grill 56 includes a support portion 561 and a support leg 562. The support portion 561 is used to place food, and the support leg 562 is used for support and fixation. The support leg 562 includes an integral first support segment 5621 and a second support segment 5622. The first support segment 5621 is connected to the support portion 561, and the cross-sectional dimension of the first support segment 5621 is larger than the cross-sectional dimension of the second support segment 5622. The grilling space 50b is provided with a first insertion hole 50b1 adapted to the first support segment 5621 and a second insertion hole 50b2 adapted to the second support segment 5622. The first support segment 5621 is positioned close to the second socket 50b2. When food needs to be moved closer to the combustion space 50a, the second support segment 5622 is inserted into the second socket 50b2. At the same time, the cross-sectional dimension of the first support segment 5621 is larger than the cross-sectional dimension of the second socket 50b2. The first support segment 5621 abuts against the periphery of the second socket 50b2, thereby achieving support and fixation. When food needs to be moved away from the combustion space 50a, the support leg 562 is inserted into the first socket 50b1. The first support segment 5621 is locked in the first socket 50b1, thereby achieving support and fixation.
[0077] Furthermore, to prevent the heat of the combustion space 50a from concentrating at the outlet end of the injector tube 58 of the ignition device 53, the combustion space 50a is provided with a diffusion net 57. The diffusion net 57 is aligned with the outlet end of the ignition device 53. In this way, after the gas comes out from the outlet end, it comes into contact with the diffusion net 57 immediately. Under the action of the surface tension of the diffusion net 57, the gas is dispersed along the diffusion net 57 into the combustion space 50a, thereby ensuring the uniformity of combustion in the combustion space 50a. At the same time, the porous structure on the diffusion net 57 can prevent backfire problems. It is understood that the diffusion net 57 can be a metal plate structure or a ceramic material, and there is no limitation here.
[0078] In one embodiment of this utility model, the wood chip combustion oven also includes a heat preservation box 60, which is located below the combustion oven body 10. In this way, the cooked food can be placed in the heat preservation box 60 to keep it warm and prevent it from getting cold when placed outside. It is understood that the heat preservation box 60 is a closed structure. In order to facilitate the display of the internal structure of the heat preservation box 60, image processing has been performed.
[0079] Furthermore, the insulated box 60 is provided with multiple insulated nets 61, which are spaced apart along the height of the insulated box 60 to ensure that food of different shapes has sufficient space to be placed in the baking space 50b.
[0080] In one embodiment of this utility model, the heat preservation box 60 is provided with a heating tube 62, which is positioned away from any heat preservation net. In this way, the heating tube 62 can provide real-time heat replenishment to the heat preservation box 60 through its heating effect, which can prevent the heat of the heat preservation box 60 from being lost to the outside and causing the indoor temperature to drop.
[0081] The above are merely exemplary embodiments of this utility model and do not limit the patent scope of this utility model. Any equivalent structural transformations made based on the technical concept of this utility model and the contents of the specification and drawings of this utility model, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this utility model.
Claims
1. A wood chip combustion stove, characterized in that, The wood chip combustion furnace includes a combustion furnace body (10) with a combustion chamber (10a) and a feeding mechanism (20) connected to the combustion furnace body (10); the feeding mechanism (20) is provided with a feeding pipe (201) and a stirring rod (202), the feeding channel of the feeding pipe (201) is connected to the combustion chamber (10a), the stirring rod (202) is rotatably disposed in the feeding channel of the feeding pipe (201), and a stirring part (203) is protruding from the outer peripheral surface of the stirring rod (202), the stirring part (203) is extended along the axial direction of the stirring rod (202).
2. The wood chip combustion furnace as described in claim 1, characterized in that, The stirring part (203) is a spiral protrusion.
3. The wood chip combustion furnace as described in claim 2, characterized in that, The stirring part (203) has a stirring passage (20a) at the end of the stirring rod (202) in the radial direction and on the inner wall of the feeding pipe (201).
4. The wood chip combustion furnace as described in claim 1, characterized in that, The feeding mechanism (20) also includes a feeding motor (204), which fixes the end of the feeding pipe (201) away from the combustion furnace body (10), and the stirring rod (202) is connected to the rotating output shaft of the feeding motor (204).
5. The wood chip combustion furnace as described in claim 1, characterized in that, The feeding mechanism (20) further includes a feeding funnel (205), which is fixedly connected to the outer wall of the combustion furnace body (10); the feeding funnel (205) has a feed inlet and a discharge outlet connected to the feed inlet, and the discharge outlet is connected to the feeding channel of the feeding pipe (201).
6. The wood chip combustion furnace as described in claim 5, characterized in that, The feeding mechanism (20) further includes a discharge assembly, which includes a discharge funnel (206) and a discharge baffle (207); the inlet of the discharge funnel (206) is connected to the material passage of the feeding funnel (205), and the discharge baffle (207) is slidably disposed at the inlet of the discharge funnel (206).
7. The wood chip combustion furnace as described in claim 5, characterized in that, The feeding mechanism (20) further includes a buffer net (208) and a vibrating assembly. The buffer net (208) is located at one end of the feeding funnel (205) near the inlet. The vibrating assembly includes a stirring motor (209) fixedly connected to the feeding funnel (205) and a vibrating rod (210) connected to the output end of the stirring motor (209). The vibrating end of the vibrating rod (210) is located between the buffer net (208) and the outlet.
8. The wood chip combustion furnace as described in claim 1, characterized in that, The combustion furnace body (10) has a detachable fire pot (101) in the combustion chamber (10a). The combustion space of the fire pot (101) is connected to the feeding channel of the feeding pipe (201). The outer peripheral wall of the fire pot (101) is provided with a plurality of air dampers (101a), and each air damper (101a) is spaced apart along the outer peripheral wall of the fire pot (101).
9. The wood chip combustion furnace according to any one of claims 1 to 8, characterized in that, The wood chip combustion furnace is also provided with a control panel (30), which is configured to control the combustion temperature of the combustion chamber (10a).
10. The wood chip combustion furnace according to any one of claims 1 to 8, characterized in that, The combustion furnace body (10) is also provided with a heat preservation chamber (40) and a side platform extension (50). The heat preservation chamber (40) is located at the lower part of the combustion chamber (10a). The side platform extension (50) is located on one side of the combustion furnace body (10) opposite to the feeding mechanism (20).
Citation Information
Cited By
Wood chip combustion furnace
EP4781877A1