Temperature-control rice seed germination accelerating box
By combining a far-infrared heating film and an ultrasonic atomizing plate with a circulating air system, the problems of uneven temperature, humidity fluctuations, and lack of oxygen in traditional rice seed germination are solved, achieving a germination environment with uniform temperature and humidity and sufficient oxygen, thus improving the seed germination rate and seedling growth quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-03-10
AI Technical Summary
Traditional rice seed germination methods suffer from uneven temperature distribution, large humidity fluctuations, and oxygen deficiency, leading to seed burn, mold growth, and low germination rates.
It uses a far-infrared heating film for radiant heating, combined with an ultrasonic atomizing sheet to atomize water mist and a circulating air system to create a uniform temperature and humidity environment. Through a combination of natural convection and forced air supply, it ensures sufficient oxygen and inhibits the accumulation of carbon dioxide.
It achieves high temperature uniformity and good humidity stability, reduces the risk of seed burning, prevents mold growth, and improves seed germination rate and seedling uniformity.
Smart Images

Figure CN223979133U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of rice cultivation, and more specifically, to a temperature-controlled rice seed germination box. Background Technology
[0002] Seed germination is a crucial step in rice cultivation, directly affecting germination rate and seedling uniformity. Traditional germination methods often rely on simple facilities (such as bamboo baskets or wooden boxes covered with plastic film), which, while meeting basic germination requirements, have significant drawbacks, such as:
[0003] Traditional heating methods (such as electric heating wires and hot water pipes) rely on air convection or conduction for heat transfer, which can easily lead to uneven temperature distribution inside the chamber and excessively high temperatures in some areas (above 40°C), causing "burning".
[0004] Humidity fluctuations (±10% or more) caused by manual spraying or bottom water tray evaporation can easily lead to condensation or water accumulation on the seed surface, which can induce mold growth and reduce germination rate.
[0005] The lack of active ventilation design leads to the accumulation of heat and carbon dioxide generated by seed respiration, resulting in oxygen deficiency and inhibiting embryo growth. Utility Model Content
[0006] To solve the above-mentioned technical problems, this utility model provides a temperature-controlled rice seed germination box. The bottom and side walls of the box are covered with a far-infrared heating film. Several upward-protruding support strips are arranged at the bottom of the inner cavity of the box. An ultrasonic atomizing plate is installed on the top of each support strip. A water collection trough is arranged above the ultrasonic atomizing plate, and a circulating air component is arranged above the water collection trough. Several germination trays are arranged above the circulating air component. After the ultrasonic atomizing plate atomizes the water in the water collection trough, it is circulated to the germination trays above through the circulating air component. Several convection holes are opened on the two side walls at the bottom of the box. An air supply mechanism is arranged at the top of the inner cavity of the box, and the air inside the box circulates through the air supply mechanism and the convection holes.
[0007] In a preferred embodiment, a hollow protective cover with open front and rear ends is installed on the outer casing of the convection holes. Several convection holes are located inside the protective cover, and a dustproof strip is inserted inside the protective cover to cover the convection holes.
[0008] In a preferred embodiment, a support frame is fitted on the outside of the water collection tank, and the edges at both ends of the water collection tank are provided with edges extending to both sides of the support frame. A first fixing plate is provided at the edge of the support frame, and the first fixing plate is installed on the inner wall of the box.
[0009] In a preferred embodiment, the circulating air component includes a second fixing plate mounted on the inner wall of the housing and a frame fixed on the second fixing plate, wherein an isolation net is embedded inside the frame and a circulating fan is installed at the bottom of the frame.
[0010] In a preferred embodiment, the germination bracket includes two laterally extending first connecting rods, the two ends of which are fixed to the inner wall of the box, and a plurality of equidistant second connecting rods are connected between the two first connecting rods.
[0011] In a preferred embodiment, the air supply mechanism includes an air supply slot formed at the top of the housing and an air supply fan located below the air supply slot. An isolation plate is provided above the air supply slot, and a gap is left between the isolation plate and the top of the housing. A support block is provided in the gap.
[0012] The technical effects and advantages of this utility model are as follows:
[0013] This invention avoids localized overheating through radiant heating, resulting in minimal temperature fluctuations and significantly reducing the risk of seed burn. Ultrasonic atomization of water mist produces fine particles with high humidity uniformity, avoiding water accumulation problems associated with traditional spraying. The combination of natural convection and forced airflow ensures sufficient oxygen within the chamber, reducing carbon dioxide buildup from seed respiration, inhibiting mold growth, and improving seed germination efficiency. Attached Figure Description
[0014] Fig. 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Fig. 2 This is another schematic diagram of the present invention;
[0016] Fig. 3 This is a schematic diagram of the water collection tank and support frame of this utility model.
[0017] Explanation of reference numerals in the attached drawings: 1. Box body; 2. Box door; 3. Far-infrared heating film; 4. Support strip; 5. Ultrasonic atomizing plate; 6. Water collection tank; 7. Germination bracket; 8. Convection hole; 9. Protective cover; 10. Dustproof strip; 11. Support frame; 12. Edge; 12. First fixing plate; 13. Second fixing plate; 14. Frame; 15. Isolation net; 16. Circulating fan; 17. First connecting rod; 18. Second connecting rod; 19. Air supply duct; 20. Air supply fan; 21. Isolation plate; 22. Support block. Detailed Implementation
[0018] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are given for illustrative and descriptive purposes only, and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical applications of the present invention, and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for a particular purpose.
[0019] like Figs. 1-3 The temperature-controlled rice seed germination box shown has a far-infrared heating film 3 covering the bottom and side walls of the box body 1. Several upward-protruding support strips 4 are provided at the bottom of the inner cavity of the box body 1. An ultrasonic atomizing plate 5 is installed on the top of the support strips 4. A water collection tank 6 is provided above the ultrasonic atomizing plate 5. A circulating air component is provided above the water collection tank 6. Several germination racks 7 are provided above the circulating air component. After the ultrasonic atomizing plate 5 atomizes the water in the water collection tank 6, it is circulated to the germination racks 7 above by the circulating air component. Several convection holes 8 are opened on the two side walls at the bottom of the box body 1. An air supply mechanism is provided at the top of the inner cavity of the box body 1. The air inside the box body 1 is circulated through the air supply mechanism and the convection holes 8.
[0020] Based on the above, the front of the box 1 is provided with a hinged door 2. When in use, open the door 2, place the soaked seeds in the tray, place the tray on the germination rack 7 inside the box 1, and place them in layers.
[0021] Furthermore, the germination bracket 7 includes two laterally extending first connecting rods 17, the two ends of which are fixed to the inner wall of the box body 1, and a number of equidistantly distributed second connecting rods 18 are connected between the two first connecting rods 17.
[0022] The combination of multiple links forms a grid structure, which can reduce the overall weight of the structure and achieve lightweight design. At the same time, the combination of links facilitates airflow and prevents air from accumulating inside the chamber 1. The vertical airflow achieves uniform temperature and humidity distribution and improves the uniformity of temperature inside the chamber 1.
[0023] Furthermore, the far-infrared heating film 3 is a far-infrared carbon fiber heating film, equipped with a corresponding temperature sensor and connected to a temperature control module. The heating power is automatically adjusted by real-time feedback data from the temperature sensor to ensure that the temperature remains stable within the set range.
[0024] Among them, the far-infrared heating film 3 covers the bottom and side walls of the box 1, and acts directly on the seeds and the surrounding environment through radiation heat transfer. The far-infrared rays have strong penetrability and can evenly heat the inside and surface of the seeds, avoiding the local temperature being too high or too low caused by traditional convection heating.
[0025] A support frame 11 is sleeved on the outside of the water collection tank 6. Edges 12 extending to both sides of the support frame 11 are provided at both ends of the water collection tank 6. A first fixing plate 12 is provided at the edge of the support frame 11. The first fixing plate 12 is installed on the inner wall of the box body 1.
[0026] The water collection tank 6 is directly inserted into the support frame 11. The user can lift the water collection tank 6 along the edge 12 to complete its disassembly and installation on the support frame 11.
[0027] The ultrasonic atomizing plate 5, installed on top of the support bar 4, is directly attached to the bottom of the water collection tank 6. Through high-frequency vibration, it breaks the water molecules in the water collection tank 6 into micron-sized water mist. The atomized water vapor is vertically transported upward through the circulating air component to the germination bracket 7 area, evenly covering the seed surface and accelerating the seed germination efficiency. The water collection tank 6 is designed with a concave structure, so that excess water mist condenses and flows back into the tank, avoiding water droplets accumulating on the seed surface and causing mold.
[0028] A hollow protective cover 9 with open front and rear ends is installed on the box 1 outside the convection holes 8. Several convection holes 8 are located inside the protective cover 9. A dustproof strip 10 is inserted inside the protective cover 9 to cover the convection holes 8.
[0029] Based on the above, multiple convection holes 8 are opened on both sides of the bottom of the box 1. Fresh air from outside enters the box 1 after being filtered by the dustproof strip 10 inside the protective cover 9, forming natural convection to replenish oxygen.
[0030] The protective cover 9 outside the convection hole 8 has a hollow design with open front and rear ends. A detachable dustproof strip 10 is inserted inside to effectively block dust and insects from entering the box 1. The dustproof strip 10 can be pushed out of the protective cover 9 for easy cleaning and maintenance.
[0031] Furthermore, the dustproof strip 10 is made of porous sponge material or other porous material that filters impurities.
[0032] The circulating air component includes a second fixing plate 13 installed on the inner wall of the housing 1 and a frame 14 fixed on the second fixing plate 13. An isolation net 15 is embedded inside the frame 14, and a circulating fan 16 is installed at the bottom of the frame 14.
[0033] The air supply mechanism includes an air supply duct 19 opened on the top of the housing 1 and an air supply fan 20 located below the air supply duct 19. An isolation plate 21 is provided above the air supply duct 19, and a gap is left between the isolation plate 21 and the top of the housing 1. A support block 22 is provided in the gap.
[0034] The air supply fan 20 is located below the air supply slot 19 at the top of the housing 1, which forces hot and humid air to blow downwards from the top, mixing it with the cold air entering from the bottom to form a vertical circulating airflow.
[0035] Based on the above, the radiant heating method avoids local overheating, has small temperature fluctuations, and significantly reduces the risk of "burning". The water mist is atomized by ultrasonic waves, and the water mist particles are fine and the humidity is highly uniform, avoiding the water accumulation problem caused by traditional spraying.
[0036] The combination of natural convection and forced ventilation ensures sufficient oxygen inside the chamber, reduces the accumulation of carbon dioxide produced by seed respiration, and inhibits mold growth.
[0037] Hot and humid air flows from top to bottom, covering multiple layers of brackets to prevent excessive local humidity or condensation.
[0038] Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.
Claims
1. A temperature-controlled rice seed germinator, characterized by, The bottom and the side wall of the box are covered with far infrared heating films, a plurality of upward protruding support strips are arranged on the bottom of the inner cavity of the box, ultrasonic atomizing sheets are arranged on the top of the support strips, a water collecting tank is arranged above the ultrasonic atomizing sheets, a circulating air component is arranged above the water collecting tank, a plurality of layers of germination support frames are arranged above the circulating air component, the water in the water collecting tank is atomized by the ultrasonic atomizing sheets, and then is circulated to the germination support frames above through the circulating air component, a plurality of convection holes are arranged on the two side walls of the bottom end of the box, an air supply mechanism is arranged on the top of the inner cavity of the box, and the air in the box is circulated through the air supply mechanism and the convection holes.
2. The temperature-controlled rice seed germinator of claim 1, wherein: A protective cover which is hollow and open at the front and rear ends is arranged on the box outside the convection holes, the plurality of convection holes are arranged inside the protective cover, and a dustproof strip which covers the convection holes is inserted into the protective cover.
3. The temperature-controlled rice seed germinator of claim 1, wherein: A support frame is arranged outside the water collecting tank, along edges which extend to the two sides of the support frame are arranged at the two end edges of the water collecting tank, a first fixing plate is arranged at the edge of the support frame, and the first fixing plate is arranged on the inner wall of the box.
4. The temperature-controlled rice seed germinator of claim 1, wherein: The circulating air component comprises a second fixing plate arranged on the inner wall of the box and a frame fixed on the second fixing plate, an isolation net is arranged in the frame, and a circulating fan is arranged on the bottom of the frame.
5. The temperature-controlled rice seed germinator of claim 1, wherein: The germination support frame comprises two first connecting rods which extend transversely, the two ends of the first connecting rods are fixed on the inner wall of the box, and a plurality of second connecting rods which are distributed at equal intervals are connected between the two first connecting rods.
6. The temperature-controlled rice seed germinator of claim 1, wherein: The air supply mechanism comprises an air supply groove arranged on the top of the box and an air supply fan arranged below the air supply groove, a partition plate is arranged above the air supply groove, a gap is formed between the partition plate and the top end of the box, and a support block is arranged in the gap.