Drying machine
By designing a dual-circulation system with upper and lower air ducts and upper and lower heating components, the problem of uneven hot air distribution is solved, achieving rapid and uniform drying and extending the equipment's lifespan.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 江苏华淼电子科技有限公司
- Filing Date
- 2026-01-06
- Publication Date
- 2026-05-12
AI Technical Summary
Existing dryers have uneven hot air distribution, resulting in some areas being too hot or too cold, leading to incomplete drying. Furthermore, condenser dryers have low air circulation efficiency, making it difficult to achieve rapid drying.
It adopts a dual circulation system with upper and lower air ducts and two heating components. Through the design of the upper cover and lower box, combined with the motor and the second motor driving the fan blades to rotate in opposite directions, hot air circulation is formed in the upper and lower air ducts, ensuring that the hot air is evenly distributed.
It improves the uniformity of hot air distribution, speeds up drying, avoids localized overheating, extends equipment lifespan, and enhances drying efficiency.
Smart Images

Figure CN122015433A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to a dryer with an upper and lower dual-air duct design, belonging to the field of laboratory equipment technology. Specifically, it relates to a dryer that improves the uniformity of hot air distribution, accelerates hot air circulation, and increases the drying speed of laboratory instruments through a dual-circulation system with upper and lower air ducts and upper and lower heating components. Background Technology
[0002] In laboratory and industrial production settings, instruments and equipment often become damp due to experimental operations, cleaning, or environmental humidity. Moisture residue on the surface or inside precision instruments can lead to rust, short circuits in electronic components, and even decreased accuracy, thus affecting experimental results or the lifespan of the equipment. Therefore, timely drying of instruments is an important means to ensure their performance and extend their service life. However, traditional air drying is too slow and has poor drying effect. Most commonly used dryers adopt a single heat source design, which results in uneven distribution of hot air in the cavity. Some areas are too hot while other areas are not hot enough, which can easily cause local overheating or incomplete drying of the instrument. Condensation dryers have low air circulation efficiency and are difficult to achieve rapid drying.
[0003] CN220169778U discloses an experimental equipment drying device, including a box body. The box body is equipped with a first support mechanism and a second support mechanism. The first support mechanism includes a petri dish support column, which is a cylinder with a hollowed-out side wall. The second support mechanism includes a limiting column, which is fixedly connected to the bottom of a partition. An adjusting sleeve is fitted on the limiting column. The adjusting sleeve is a hollowed-out cylinder, and the opening end of the adjusting sleeve is provided with several fixed limiting teeth. However, this equipment drying device does not make full use of the diffusion and circulation of hot air by wind energy, resulting in low drying efficiency and uneven drying.
[0004] This publication number CN218672915U discloses a laboratory equipment dryer that facilitates internal cleaning. It includes a box body, a ventilation pipe on the upper surface of the box body, and two ends of the ventilation pipe connected to the inside of the box body through round pipes. A fan is installed in one of the round pipes, and drying cotton is installed in another round pipe. A fixing frame is installed in a slot, and a heating plate is installed in each slot. A baffle is installed on the left end face of the box body, and a drawer is installed on the right end face of the baffle. A connecting plate is installed between two slides, and a tray is embedded in the middle of the connecting plate. However, this equipment drying device only has a fan on one side of the equipment, which cannot effectively achieve the circulation of hot air, resulting in uneven drying of different parts of the equipment. Summary of the Invention
[0005] To improve the above situation, the present invention provides a dryer with a dual circulation system of upper and lower air ducts and upper and lower heating components, which improves the uniformity of hot air distribution, accelerates hot air circulation, and increases the drying speed of instruments.
[0006] The dryer of the present invention is implemented as follows: The dryer of the present invention includes an upper cover, a lower box body, and a drying mechanism. The characteristic feature is that the upper cover is positioned above the drying mechanism, and the drying mechanism is positioned at the bottom of the lower box. Preferably, the upper cover and lower box body enclose and surround the drying mechanism. Preferably, the inner surfaces of the upper cover and the lower box are coated with a layer of high-polymer corrosion-resistant coating. The drying mechanism consists of a structural frame, a silicone perforated cover, a first telescopic rod, a suction cup, a fixing rod, a connecting block, an inner box, a motor, a heating plate, fan blades, a fixing block, a rotating shaft, a connecting plate, a second motor, and a lower heating assembly. The structural frame is placed on the inner wall of the inner box. Preferably, the structural frame has a radial mesh-like hollow design. Preferably, the inner wall of the inner box is provided with a baffle plate. Preferably, the lower box has a larger opening and is flush with the inner box opening. A silicone perforated cover is placed above the structural frame, a suction cup is placed on the silicone perforated cover, one end of the first telescopic rod is placed on the suction cup, and the other end of the first telescopic rod is connected to the inner wall of the inner box. Preferably, a nano-level antibacterial coating is added to the surface of the silicone perforated cover, the silicone perforated cover has a radial mesh perforation design, and the silicone perforated cover is made of silicone material. Preferably, the edge of the suction cup adopts a trapezoidal gradient structure. Preferably, the first telescopic rod is a multi-segment telescopic structure. Two fixing rods extend from the side of the inner box. Preferably, one end of the fixing rod is connected to the inner wall of the lower box via a connecting block. The motor is placed on top of the cover, the shaft is placed on the motor, the connecting plate is placed on the shaft, and the fan blades are placed on the connecting plate. Preferably, the fan blades adopt a design that is "wider in the middle and narrower at both ends," and the angle of the fan blades is tilted downwards, forming an angle of 10-15 degrees with the horizontal plane. Preferably, the deflection angle of the fan blades is opposite in direction to the deflection angle of the fan blades on the second motor. The heating plate is placed below the fan blades, and the two ends of the heating plate are fixed to the inner wall of the upper cover by fixing blocks. The second motor is placed at the bottom of the lower box, the fan is placed on the second motor, the lower heating component is placed above the fan, and the two ends of the lower heating component are fixed to the inner wall of the lower box by fixing blocks. The inner box is located between the heating plate and the lower heating component.
[0007] Preferably, the rotation direction of the first motor and the second motor are opposite. Beneficial effects
[0008] First, it can accelerate the circulation of hot air inside the dryer, thus speeding up the drying process.
[0009] Second, it can ensure that the inside of the dryer is heated evenly, avoid local overheating, and improve the drying effect. Attached Figure Description
[0010] Figure 1 This is a three-dimensional structural diagram of a dryer according to the present invention; Figure 2 This is a three-dimensional structural diagram of the internal structure of a dryer according to the present invention, which only shows the connection of the inner box; Figure 3 This is a three-dimensional structural diagram of the interior of the top cover of a dryer according to the present invention; Figure 4 This is a three-dimensional structural diagram of the lower box body of a dryer according to the present invention; Attached Figure
[0011] The components are: upper cover (1), lower box body (2), structural frame (3), silicone hollow cover (4), first telescopic rod (5), suction cup (6), fixing rod (7), connecting block (8), inner box (9), motor (10), electric heating plate (11), fan blade (12), fixing block (13), rotating shaft (14), connecting plate (15), second motor (16), and lower heating component (17). Detailed implementation method: The dryer of the present invention is implemented as follows: The dryer of the present invention includes an upper cover (1), a lower box body (2), and a drying mechanism. The characteristic feature is that the upper cover (1) is placed on the upper part of the drying mechanism, and the drying mechanism is placed at the bottom of the lower box body (2). Preferably, the upper cover (1) and the lower box body (2) enclose and surround the drying mechanism. Preferably, the inner surfaces of the upper cover (1) and the lower box body (2) are coated with a layer of high-polymer corrosion-resistant coating. Preferably, the top surface of the upper cover (1) and the bottom surface of the lower box (2) are respectively provided with air holes. The drying mechanism consists of a structural frame (3), a silicone perforated cover (4), a first telescopic rod (5), a suction cup (6), a fixing rod (7), a connecting block (8), an inner box (9), a motor (10), an electric heating plate (11), fan blades (12), a fixing block (13), a rotating shaft (14), a connecting plate (15), a second motor (16), and a lower heating assembly (17). The structural frame (3) is placed on the inner wall of the inner box (9). Preferably, the structural frame (3) has a radial mesh hollow design. Preferably, the inner wall of the inner box (9) is provided with a baffle plate. Preferably, the opening of the lower box (2) is larger and flush with the opening of the inner box (9). The silicone perforated cover (4) is placed above the structural frame, the suction cup (6) is placed on the silicone perforated cover (4), one end of the first telescopic rod (5) is placed on the suction cup (6), and the other end of the first telescopic rod is connected to the inner wall of the inner box (9). Preferably, a nano-level antibacterial coating is added to the surface of the silicone perforated cover (4), the silicone perforated cover (4) has a circumferential mesh perforation design, and the silicone perforated cover (4) is made of silicone material. Preferably, the edge of the suction cup (6) adopts a trapezoidal gradient structure. Preferably, the first telescopic rod (5) is a multi-segment telescopic structure. Two fixing rods (7) extend from the side of the inner box (9). Preferably, one end of the fixing rod (7) is connected to the inner wall of the lower box (2) via a connecting block (8). The motor (10) is placed on top of the cover (1), the shaft (14) is placed on the motor (10), the connecting plate (15) is placed on the shaft (14), and the fan blade (12) is placed on the connecting plate (15). Preferably, the fan blade (12) adopts a design that is "wide in the middle and narrow at both ends", and the fan blade (12) is angled downwards, forming an angle of 10-15 degrees with the horizontal plane. Preferably, the deflection angle of the fan blade (12) is opposite to the deflection angle of the fan blade on the second motor (16). The heating plate (11) is placed below the fan blade (12). The two ends of the heating plate (11) are placed on the inner wall of the upper cover (1) through the fixing block (13). The second motor (16) is placed at the bottom of the lower box (2). The fan is placed on the second motor (16). The lower heating component (17) is placed above the fan. The two ends of the lower heating component (17) are placed on the inner wall of the lower box (2) through the fixing block. The inner box (9) is located between the heating plate (11) and the lower heating component (17).
[0012] Preferably, the rotation direction of the motor (10) is opposite to that of the second motor (16). When in use, open the top cover (1) of the dryer, put the instrument to be dried into the inner box (9), cover it with the silicone perforated cover (4), extend and retract the first telescopic rod (5) and squeeze the silicone perforated cover (4) through the suction cup (6) to fix the instrument between the silicone perforated cover (4) and the structural frame (3), then cover the top cover (1) on the lower box (2) to close the drying mechanism, turn on the control switch, the motor (10) at the top of the top cover (1) drives the fan blade (12) to rotate, and the resulting wind force diffuses the heat generated by the electric heating plate (11) downwards. The second motor (16) at the bottom of the lower box (2) drives the fan blade at the bottom to rotate, and the resulting wind force diffuses the heat generated by the lower heating component (17) upwards. Through the dual circulation system of the upper and lower air ducts and the upper and lower heating components, the uniformity of the hot air distribution inside the dryer is improved, the hot air circulation is accelerated, and the drying speed of the instrument is improved. The upper cover (1) and the lower box (2) enclose the drying mechanism, providing a stable sealing effect and promoting internal heat circulation. The inner surfaces of the upper cover (1) and the lower box (2) are coated with a layer of high-polymer corrosion-resistant coating, which can prevent oxidation or corrosion in high temperature and humid environment and extend the service life of the equipment. The structural frame (3) has a ring-shaped mesh hollow design, which increases the flow path for hot air circulation and improves drying efficiency; Preferably, the inner wall of the inner box (9) is provided with a baffle plate, which can guide the airflow along the axial direction of the inner box (9) to improve the airflow efficiency; The lower box (2) has a large opening and is flush with the opening of the inner box (9), making it convenient to put the instrument into the dryer; The surface of the silicone hollow cover (4) is coated with a nano-level antibacterial coating, which effectively prevents the growth of bacteria and mold and keeps the cover clean and hygienic. The silicone hollow cover (4) has a ring-shaped mesh hollow design, which increases the flow path for hot air circulation and improves drying efficiency. The silicone hollow cover (4) is made of silicone material, which has a certain elasticity and can prevent the device from being damaged by compression. The suction cup (6) has a trapezoidal gradient structure at its edge to increase the contact area with the contact surface and press the silicone hollow cover (4) firmly to fix the instrument. The first telescopic rod (5) is a multi-segment telescopic structure, which can reasonably adjust the pressure on the silicone hollow cover (4) according to the size of the instrument; One end of the fixing rod (7) is connected to the inner wall of the lower box (2) through the connecting block (8), which improves the stability of the inner box (9) and provides more space for the circulation of hot air; The fan blades (12) are designed to be "wider in the middle and narrower at both ends," which can more effectively capture and propel air, thereby increasing airflow and reducing the generation of eddies and turbulence, thus reducing noise. The fan blades (12) are angled downwards, forming an angle of 10-15 degrees with the horizontal plane, which can guide the airflow downwards, promote air circulation, and improve drying efficiency. The deflection angle of the fan blade (12) is opposite to the deflection angle of the fan blade on the second motor (16). The fan on the second motor (16) can guide the airflow upward, promote air circulation, and improve drying efficiency. The rotation direction of the motor (10) is opposite to that of the second motor (16) to enhance the airflow circulation effect and improve drying efficiency; The goal is to improve the uniformity of hot air distribution, accelerate hot air circulation, and increase the drying speed of the instrument by using a dual circulation system of upper and lower air ducts and upper and lower heating components.
[0013] The above embodiments are preferred embodiments of the present invention. To save space, the applicant has not added other embodiments, but this is not intended to limit the scope of the present invention. Any person skilled in the art can make some modifications without departing from the scope of the present invention; that is, all equivalent modifications made in accordance with the present invention should be covered by the scope of the present invention.
Claims
1. A dryer, comprising an upper cover, a lower box body, and a drying mechanism, characterized in that: The upper cover is placed on top of the drying mechanism, which is placed at the bottom of the lower box. The drying mechanism consists of a structural frame, a silicone perforated cover, a first telescopic rod, a suction cup, a fixing rod, a connecting block, an inner box, a motor, a heating plate, fan blades, a fixing block, a rotating shaft, a connecting plate, a second motor, and a lower heating assembly. The structural frame is placed on the inner wall of the inner box, the silicone perforated cover is placed above the structural frame, the suction cup is placed on the silicone perforated cover, one end of the first telescopic rod is placed on the suction cup, and the other end of the first telescopic rod is connected to the inner wall of the inner box. Two fixing rods extend from the side of the inner box. The motor is placed on top of the upper cover, the rotating shaft is placed on the motor, the connecting plate is placed on the rotating shaft, the fan blades are placed on the connecting plate, the heating plate is placed below the fan blades, and both ends of the heating plate are placed on the inner wall of the upper cover via fixing blocks. The second motor is placed at the bottom of the lower box, the fan is placed on the second motor, and the lower heating assembly is placed above the fan. Both ends of the lower heating assembly are placed on the inner wall of the lower box via fixing blocks. The inner box is located between the heating plate and the lower heating assembly.
2. A dryer according to claim 1, characterized in that... The upper cover and lower box body enclose the drying mechanism, and the inner surface of the upper cover and lower box body is coated with a layer of high polymer corrosion-resistant coating.
3. A dryer according to claim 1, characterized in that... The structural frame features a radial mesh-like openwork design.
4. A dryer according to claim 1, characterized in that... The inner wall of the inner box is provided with a guide plate, and the opening of the lower box is large and flush with the opening of the inner box.
5. A dryer according to claim 1, characterized in that... A nano-level antibacterial coating is added to the surface of the silicone perforated cover, and the silicone perforated cover is a ring.
6. A dryer according to claim 1, characterized in that... The silicone perforated cover has a radial mesh perforation design and is made of silicone material.
7. A dryer according to claim 1, characterized in that... The first telescopic rod is a multi-segment telescopic structure, and one end of the fixed rod is connected to the inner wall of the lower box through a connecting block.
8. A dryer according to claim 1, characterized in that... The suction cup has a trapezoidal gradient edge.
9. A dryer according to claim 1, characterized in that... The fan blades are designed to be "wider in the middle and narrower at both ends", and the angle of the fan blades is tilted downwards, forming an angle of 10-15 degrees with the horizontal plane.
10. A dryer according to claim 1, characterized in that... The deflection angle of the fan blades is opposite to the deflection angle of the fan blades on the second motor, and the rotation direction of the motor is opposite to that of the second motor.