Fermentation machine for improving natto fermentation quality

Abstract

The utility model discloses a fermentation machine for improving natto fermentation quality, and belongs to the technical field of fermentation containers. A top air channel, a left interlayer air channel, a right interlayer air channel, a top main heating source, two side auxiliary heating sources and a bottom heating source are arranged in a box body and matched with cooling fins and cooling fans to form circulating hot air flow, and it is guaranteed that the temperature in the box is balanced; the box body is of a wooden structure and is provided with a lower ventilation hole with air filter cotton, the rear part of the box body is provided with an exhaust device consisting of an upper exhaust outlet, a high-speed exhaust fan and an exhaust fan switch, and a box body door is provided with a double-layer PC glass observation window; a humidifying disc is additionally arranged at the bottom, and an ultraviolet lamp with an ozone function and negative ion energy stones are arranged inside; the box body is provided with an external controller and is connected with an internal electric appliance assembly through an aviation plug female seat and an aviation plug male head, and a 220V-to-24V low-voltage power adapter supplies power to the internal electric appliance assembly. Oxygen supply, cleanliness and humidity of a fermentation environment are improved, heat efficiency is high, electrical use is safe, the structure is reasonable, and practicability is high.

Description

Technical Field

[0001] This utility model relates to the field of leading fermentation container technology, specifically to a fermentation machine for improving the fermentation quality of natto. Background Technology

[0002] Natto is a health food made from soybeans fermented with Bacillus subtilis. It can lower cholesterol and blood lipids, eliminate carcinogens from the body, and has benefits such as improving memory, protecting the liver and beautifying the skin, and delaying aging. Natto provides the body with calcium, and regular consumption by the elderly can prevent osteoporosis and improve immunity. Natto is widely recognized as a blood vessel cleanser and a preventative health food. Fresh natto can be made at home using a natto maker. However, the disadvantages of household natto makers currently on the domestic market include: 1. Simple design and a single heat source, resulting in uneven temperature distribution within the fermentation chamber, leading to insufficient fermentation efficiency and reduced quality. 2. Insufficient cooling after fermentation affects quality. 3. Poor air circulation, failing to provide enough oxygen for fermentation, resulting in incomplete fermentation and reduced quality. 4. Lack of sterilization devices inside the fermentation chamber, leading to unclean air affecting product quality, consistency, and yield. 5. Poor insulation of the metal or plastic chamber, resulting in increased power consumption. 6. The plastic casing will age when heated and may even melt, releasing harmful substances and posing a safety hazard. 7. Without a humidifier, the fermented material is prone to drying out. 8. The function is limited and fixed; temperature and time cannot be freely adjusted. 9. The circuit board inside the casing will produce harmful odors when heated, affecting the flavor of the fermented material. 10. The 220V AC voltage is unstable and poses a safety hazard. Summary of the Invention

[0003] To address the aforementioned problems and improve the fermentation quality of natto, this invention provides a fermentation machine for improving the fermentation quality of natto.

[0004] To achieve the above objectives, this invention provides a fermentation machine for improving the quality of natto fermentation, implemented as follows: The invention provides a natto fermentation chamber with a uniform temperature throughout its upper, lower, left, and right sides. The internal structure of the fermentation chamber adopts a top air duct and a sandwiched air duct design with vertical partitions on both sides. The top air duct has a main heat source including a silicone heating element, an aluminum heat sink, and a cooling fan; the left and right sides each have auxiliary heat sources including a PTC ceramic heating element and an aluminum heat sink structure; and the bottom auxiliary heat source includes a silicone heating wire and a PP plastic base plate. The top air duct runs through the left and right air ducts, and the bottom of the chamber is connected to the air duct. The hot air generated by the heating element and aluminum heat sink in the air duct is circulated by the fan, thus achieving a uniform temperature inside the chamber. Ventilation openings are designed at the top and bottom of the chamber, providing sufficient oxygen for the fermenting material. Air filters are installed at the ventilation openings, and the chamber is equipped with an ozone-functional ultraviolet lamp disinfection device to ensure a clean fermentation environment; a humidification tray is installed at the bottom of the fermentation chamber to increase the humidity of the air inside. The cabinet door can be pushed open and concealed inside the cabinet. The door features a double-layered glass viewing window with insulation and an internal LED light for easy monitoring of the fermentation process. The cabinet is constructed of wood for safety and reliability, and is equipped with an insulation layer to prevent heat loss, resulting in high thermal efficiency, reduced energy consumption, and improved natto fermentation quality.

[0005] As a preferred technical solution, the top air duct of the box extends horizontally through the left and right air ducts. The top air duct and the center of the horizontal partition inside the box are designed with holes of the same diameter as the fan, which communicate with the inside of the box. The left and right air ducts adopt a vertical partition sandwich design, and the bottom of the vertical partition has a ventilation opening that communicates with the box space.

[0006] As a preferred technical solution, the fermentation chamber's heating source is designed with multiple heating sources: a main heating source at the top, auxiliary heating sources on the left and right sides, and a heating source at the bottom. The main heating source at the top consists of a silicone heating element, an aluminum heat sink, and a cooling fan, and is equipped with an overheat protection switch to improve safety. The auxiliary heating sources on both sides consist of PTC ceramic heating elements and aluminum heat sinks. The heating source at the bottom consists of silicone heating wires and a PP plastic base plate.

[0007] As a preferred technical solution, the main heat source is placed in the top air duct, the auxiliary heat sources on both sides are placed in the air ducts of the side clamps, and the bottom heat source is placed in the internal groove of the PP plastic plate and evenly distributed.

[0008] As a preferred technical solution, the housing has a lower ventilation hole, and an air filter cotton is installed at the lower ventilation hole; at the same time, an exhaust device is designed at the rear of the housing, which consists of an upper exhaust port, a high-speed exhaust fan and an exhaust fan switch, wherein the high-speed exhaust fan is installed at the upper exhaust port.

[0009] As a preferred technical solution, the top partition of the fermentation chamber is equipped with an ultraviolet lamp device that can generate ozone, and the bottom of the chamber is designed with a humidification tray.

[0010] As a preferred technical solution, the housing is designed with a hidden sliding door, and silicone handles on both sides for easy handling of the machine.

[0011] As a preferred technical solution, the cabinet door is designed with a double-layered PC glass observation window, which allows observation of changes in the fermentation product, and the double-layered PC glass has a good heat preservation effect.

[0012] As a preferred technical solution, the box is made of wood and is designed with stainless steel shelves, wooden strips and shelf supports for placing fermented materials.

[0013] As a preferred technical solution, LED light strips are designed into the light grooves of the horizontal partition of the box. The partition material is PP plastic, and the bottom of the light groove is 1.8 mm thick, which can illuminate the box through the LED light.

[0014] As a preferred technical solution, the enclosure is designed with an external controller, which connects to the internal electrical components of the enclosure by means of an aviation plug female and an aviation plug male. The internal electrical components are powered by a safe voltage from a 220V to 24V low-voltage power adapter, thus avoiding the impact of odors generated by the circuit board after it is heated on the fermentation product.

[0015] This utility model has the following advantages:

[0016] The main heating source at the top, the heating source at the bottom, and the auxiliary heating sources on the left and right sides provided by this utility model ensure a uniform temperature inside the chamber. Ventilation openings at the top and bottom of the chamber allow for air circulation during natto fermentation, ensuring sufficient oxygen and preventing quality degradation due to incomplete fermentation.

[0017] This invention provides an ozone-generating ultraviolet lamp device, which can sterilize and purify fermentation materials and air, as well as disinfect and sterilize related production vessels and utensils. This ensures the cleanliness of the fermentation environment and prevents contamination by other bacteria, thus affecting the fermentation quality.

[0018] This utility model provides a humidification tray at the bottom of the box, which can increase the humidity of the fermentation environment, thereby improving the quality of natto fermentation.

[0019] The box of this invention is equipped with negative ion energy stones, which release negative oxygen ions during fermentation. These ions promote the activity and metabolic efficiency of microbial fermentation and inhibit contamination by other microorganisms, thereby improving the quality of the fermented product. Attached Figure Description

[0020] Figure 1 This is a front cross-sectional view of a fermentation machine for improving the fermentation quality of natto according to the present invention.

[0021] Figure 2 This is a rear perspective view of a fermentation machine for improving the fermentation quality of natto according to the present invention.

[0022] Figure 3 This is a diagram showing the internal structure of the air duct of a fermentation machine for improving the fermentation quality of natto, according to this utility model.

[0023] Figure 4 This is a front perspective view of a fermentation machine for improving the fermentation quality of natto according to the present invention.

[0024] Figure 5 This is a front-view perspective view of a fermentation machine for improving the fermentation quality of natto, according to the present invention.

[0025] In the diagram: 1. Solid wood cabinet; 2. Left side interlayer air duct; 3. Right side interlayer air duct; 4. Top air duct; 5. Top air inlet; 6. Left PTC ceramic heating element; 7. Right PTC ceramic heating element; 8. Left vertical partition; 9. Right vertical partition; 10. Silicone heating element; 11. Aluminum heat sink; 12. Cooling fan; 13. PP plastic horizontal partition; 14. Left air duct heat dissipation aluminum plate; 15. Right air duct heat dissipation aluminum plate; 16. Lower left vent; 17. Lower right air duct opening; 18. Silicone sealing strips for both side air ducts; 19. Top air duct cover; 20. Top air duct sealing wooden strips. 21. Humidifier tray; 22. U-shaped UV lamp; 23. Overheat protection switch; 24. Wooden strip bracket; 25. Wooden strip bracket support; 26. Lower ventilation hole; 27. Lower ventilation hole decorative cover; 28. Air filter cotton; 29. ​​Upper exhaust vent; 30. Upper exhaust vent decorative cover; 32. Rear maintenance cover; 33. External controller; 34. Aviation plug female; 35. Aviation plug male; 36. 24V power adapter; 37. UV lamp switch; 38. Exhaust fan switch; 39. Stainless steel shelf; 40. Shelf support; 41. LED lighting strip; 42. Light trough; 43. Double-layer PC glass; 44. LED light switch; 45. Wooden door; 46. Wooden door handle; 47. Silicone handles on both sides of the wooden box; 48. Door catch; 49. High-speed exhaust fan; 50. Door slide rail; 52. Wooden door positioning hook; 53. Wooden door limit nylon post; 54. Silicone heating wire; 55. PP plastic base plate; 56. Negative ion energy stone. Detailed Implementation

[0026] The specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings. Those skilled in the art should understand that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the scope of protection of this utility model.

[0027] (Please refer to the illustration) Figure 1 , Figure 2 , Figure 3 , Figure 4 , Figure 5The top air duct 4 extends through the left-side interlayer air duct 2 and the right-side interlayer air duct 3. When the machine is powered on and the temperature and time are set via the external controller 34, the air in the top air duct 4 is heated by the silicone heating element 10 and the aluminum heat sink 11, and then blown to both sides of the air duct by the cooling fan 12. It is then guided to the left-side interlayer air duct 2 and the right-side interlayer air duct 3. The auxiliary heating sources in the air ducts on both sides, the left PTC ceramic heating element 6 and the right PTC ceramic heating element 7, and the left and right air duct heat dissipation aluminum plates 14 and 15, are heated and then flow back to the bottom of the chamber through the left and right lower vents. The air is then heated again by the bottom auxiliary heating source, the silicone heating wire 55, and the PP plastic base plate 56, and finally drawn back to the top air duct 4 by the cooling fan. This cycle ensures that the air circulates within the chamber, ensuring a balanced temperature inside the fermentation chamber.

[0028] A lower ventilation hole 27 is installed at the rear of the fermentation chamber 1. Airflow brings fresh air into the chamber. The lower ventilation hole 27 is also equipped with an air filter cotton 29 to provide fresh and clean air for natto fermentation. A high-speed exhaust fan 50 is installed at the upper exhaust vent 30. When the internal temperature of the chamber becomes too high during the later stages of fermentation, the exhaust fan switch 39 can be turned on, and the high-speed exhaust fan 50 will start working to expel hot air and cool the chamber, thereby improving the quality of the fermented product.

[0029] The fermentation machine is equipped with a UV lamp 22 with ozone function. When the air circulates in the chamber, the UV lamp switch 38 is turned on. The air passes through the UV lamp and, with the help of ozone, can inactivate bacteria in the chamber, ensuring a clean fermentation environment for natto and thus improving the quality of natto.

[0030] A humidifying tray 21 can be placed at the bottom of the fermentation machine. A damp towel can be placed in the tray. When the air flows, the moisture from the damp towel will be carried into the air, ensuring that the humidity of the air in the fermentation box is conducive to improving the quality of natto.

[0031] The wooden door 46 of the box is fixed by a door stop 49. Door slide rails 52 are installed on both sides above the left vertical partition 8 and the right vertical partition 9. When opening the door, pull the wooden door handle 47 outward to open the door to the top and then push it inward. The wooden door 46 can be hidden above the box. The wooden door 46 is fitted with transparent double-layer PC glass 44. LED lights 42 are installed in the light trough 43 of the horizontal partition 13 on the fermenter. When the LED light switch 45 is turned on, the state of the fermented material can be observed through the double-layer PC glass 44.

[0032] The box is designed with three shelves, supported by shelf support 41 and wooden strip support 25. The first shelf is a stainless steel shelf 40, and the second and third shelves are wooden strip supports 24.

Claims

1. A fermentation machine for improving fermentation quality of natto, characterized by include: The internal structure of the fermenter housing (1) adopts a top air duct (4), a left-side interlayer air duct (2) and a right-side interlayer air duct (3) design; and a top main heat source, left and right auxiliary heat sources and a bottom heat source design; the top air duct (4) runs through the left-side interlayer air duct (2) and the right-side interlayer air duct (3). When the heat source is working in the air duct, the hot air is driven by the cooling fan (12) to form a circulating airflow in the housing; the fermenter housing is designed with a lower ventilation hole (27), and the lower ventilation hole (27) is equipped with an air filter cotton (29); the rear of the fermenter is designed with an exhaust device, consisting of an upper exhaust port (30), a high-speed exhaust fan (50) and an exhaust fan switch (39); the fermenter is equipped with an ozone-functional ultraviolet lamp (22) disinfection device; and a humidification plate (21) is installed at the bottom of the fermenter housing.

2. The fermentation machine of claim 1, wherein: The wooden door (46) can be pushed and pulled inside the box, and the door is designed with a double-layered PC glass (44) observation window with heat preservation effect.

3. The fermentation machine of claim 1, wherein: The top main heat source consists of a silicone heating element (10), an aluminum heat sink (11), and a cooling fan (12), and is placed in the top air duct (4). An overheat protection switch (23) is installed. The auxiliary heat sources on both sides are placed in the left interlayer air duct (2) and the right interlayer air duct (3), respectively, and consist of a left PTC ceramic heating element (6), a right PTC ceramic heating element (7), a left air duct heat dissipation aluminum plate (14), and a right air duct heat dissipation aluminum plate (15). The bottom heat source consists of a silicone heating wire (55) and a PP plastic base plate (56).

4. The fermentation machine of claim 1, wherein The box is made of wood and has a three-layer shelf design, supported by shelf support (41) and wooden strip support (25). The first layer is a stainless steel shelf (40), and the second and third layers are wooden strip supports (24).

5. The fermentation machine of claim 1, wherein: The upper partition (13) of the box is designed with LED lights (42) embedded in the light groove (43) of the partition. The material of the partition (13) is PP plastic, and the bottom thickness of the light groove is 1.8 mm, which can transmit the light of LED lights (42).

6. The fermentation machine of claim 1, wherein: The enclosure is designed with an external controller (34), which is connected to the internal electrical components by an aviation plug female (35) and an aviation plug male (36), and is powered by a 220V to 24V low voltage power adapter (37).

7. The fermentation machine of claim 1, wherein: The fermenter housing is equipped with negative ion energy stones (57), which can release negative oxygen ions during fermentation.

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