Clothes dryer with heat energy recycling

By setting up a first fan and a second fan to work in tandem in the clothes dryer, hot air circulation and dynamic adjustment of the air inlet angle are achieved, solving the problems of heat energy waste and humid air retention, and improving drying efficiency and uniformity.

CN224313920UActive Publication Date: 2026-06-02HUNAN NUANNONGDONG INTELLIGENT TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
HUNAN NUANNONGDONG INTELLIGENT TECHNOLOGY CO LTD
Filing Date
2025-06-05
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing clothes dryers waste a lot of heat energy during the drying process, and the hot and humid air stays for a long time, resulting in low drying efficiency and a decrease in the rate of moisture evaporation from clothes.

Method used

The system uses a first fan to deliver hot air in conjunction with a rotating mesh cylinder to tumble the clothes, and a second fan to recover and reheat the humid and hot air. The system also uses a threaded rod, rack and pinion and gear structure to dynamically adjust the air inlet angle, so as to achieve heat energy recycling and airflow uniformity.

Benefits of technology

It improves drying efficiency and the quality of clothes drying, reduces energy waste, and enhances heat recovery efficiency and drying uniformity.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

The utility model discloses a kind of clothes dryers with heat energy recycling, including shell, the outer side wall of the shell is hinged with sealing door, the outer side wall of the shell is equipped with first motor, the output shaft end of the first motor extends to shell interior, and fixedly connected with mesh tube, the upper end of the shell is fixedly connected with heating box, the outer side wall of the heating box is hinged with box door, heating pipe is installed in the heating box, the inner wall of the heating box is fixedly connected with filter screen, the inner wall of the shell is fixedly connected with fixed plate, two the fixed plate inside are hollow, and multiple air outlets are arranged in opposite side, the upper end of the shell is equipped with first fan. Its setting first fan and second fan structure, through the collaborative work of both, the efficient delivery and recycling of hot air are realized, cooperate the mesh tube of rotation, significantly improve drying efficiency and drying effect.
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Description

Technical Field

[0001] This utility model relates to the field of clothes dryer technology, and in particular to a clothes dryer that can recycle heat energy. Background Technology

[0002] Dryers can be divided into two types: industrial and civilian. Industrial dryers are also called drying equipment or dryers. Civilian dryers are a type of washing machinery. They are generally used to remove moisture from clothing and other textiles after washing and dehydration. Dryers have several modes, such as belt dryers, drum dryers, box dryers and tower dryers. Heat sources include coal, electricity and gas.

[0003] However, clothes dryers generally adopt an open-loop mode from heating to drying to exhaust. The hot and humid air generated during the drying process is directly discharged to the outside, resulting in energy waste. In addition, in the open-loop mode, the moisture needs to be continuously replaced by fresh air, which results in a long retention time of hot and humid air and a decrease in the evaporation rate of moisture from clothes. Therefore, we need to consider how to solve this problem. Utility Model Content

[0004] The purpose of this utility model is to address the shortcomings of existing technologies by proposing a clothes dryer with heat energy recycling. It is equipped with a first fan and a second fan, and through their coordinated work, it achieves efficient delivery and recycling of hot air. Combined with a rotating mesh drum, it significantly improves drying efficiency and drying effect.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A clothes dryer with recyclable heat energy includes a housing. A sealed door is hinged to the outer wall of the housing. A first motor is mounted on the outer wall of the housing. The output shaft of the first motor extends into the housing and is fixedly connected to a mesh tube. A heating chamber is fixedly connected to the upper end of the housing. A door is hinged to the outer wall of the heating chamber. Heating tubes are installed inside the heating chamber. A filter screen is fixedly connected to the inner wall of the heating chamber. Fixed plates are fixedly connected to the inner walls of both sides of the housing. Both fixed plates are hollow inside and have multiple air outlets on opposite sides. The upper end of the housing... A first fan is installed, with its air inlet connected to the top space of the heating box via an air inlet pipe. The air outlet of the first fan is connected to the interior of two fixed plates via a first branch pipe. Two rotating pipes are rotatably connected to one side of the inner wall of the housing, with multiple air inlets at the lower ends of the two rotating pipes. A second fan is installed at the upper end of the housing, with its air inlet connected to the interior of the two rotating pipes via a second branch pipe. The air outlet of the second fan is connected to the bottom space of the heating box via an air outlet pipe. A swinging mechanism for swinging the two rotating pipes is provided inside the housing.

[0007] Preferably, the swing mechanism includes a threaded rod rotatably connected between the inner walls of both sides of the housing, and a sliding plate is threadedly connected to the threaded rod, the sliding plate being slidably connected to the inner top of the housing.

[0008] Preferably, a sliding rod is fixedly connected between the inner walls of the two sides of the housing, and two racks are slidably connected on the sliding rod, with the upper ends of the two racks fixedly connected to the lower end of the sliding plate.

[0009] Preferably, gears are fixedly connected to the outer walls of both rotating tubes, and both gears mesh with corresponding racks.

[0010] Preferably, a second motor is installed on the outer wall of the housing, and the output shaft of the second motor extends into the housing and is fixedly connected to one end of a threaded rod.

[0011] Preferably, both the first motor and the second motor are servo motors that can change their rotation speed and rotation direction.

[0012] Compared with the prior art, the advantages of this utility model are as follows:

[0013] 1. The system is equipped with heating elements, a first fan, and a second fan. The first fan delivers hot air, which, together with the rotating mesh drum, causes the clothes to tumble continuously during the drying process, preventing uneven drying caused by localized accumulation. At the same time, the hot air penetrates the clothes from multiple angles, accelerating moisture evaporation. The second fan recovers the humid and hot air and recirculates it for reheating, further improving drying efficiency and the quality of the dried clothes.

[0014] 2. The structure includes a threaded rod, rack, and gears. The threaded rod is driven by a motor to rotate, which in turn drives the rack to move linearly. The gears then mesh to convert the linear motion into the oscillation of the rotating tube, thereby dynamically adjusting the air intake angle. This results in a more uniform airflow distribution within the casing, enhancing heat recovery efficiency and drying uniformity. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of a clothes dryer that can recycle heat energy according to the present invention;

[0016] Figure 2 for Figure 1 A schematic diagram of the right-side cross-section;

[0017] Figure 3 for Figure 1 Rear view diagram;

[0018] Figure 4 for Figure 1 A schematic diagram of the front cross-section;

[0019] Figure 5for Figure 4 Enlarged view of point A;

[0020] Figure 6 for Figure 1 The diagram on the right.

[0021] In the diagram: 1. Housing, 2. Sealed door, 3. First motor, 4. Mesh tube, 5. Heating box, 6. Box door, 7. Heating tube, 8. Filter screen, 9. Fixing plate, 10. Air outlet, 11. First fan, 12. Air inlet pipe, 13. First branch pipe, 14. Rotating pipe, 15. Air inlet, 16. Threaded rod, 17. Sliding plate, 18. Sliding rod, 19. Rack, 20. Gear, 21. Second motor, 22. Second fan, 23. Second branch pipe, 24. Air outlet pipe. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0023] Reference Figures 1-6 A clothes dryer with recyclable heat energy includes a housing 1. A sealing door 2 is hinged to the outer wall of the housing 1. A first motor 3 is installed on the outer wall of the housing 1. The output shaft of the first motor 3 extends into the interior of the housing 1 and is fixedly connected to a mesh cylinder 4. A heating chamber 5 is fixedly connected to the upper end of the housing 1. A chamber door 6 is hinged to the outer wall of the heating chamber 5. A heating tube 7 is installed inside the heating chamber 5. The heating tube 7 is spiral-shaped, which can increase the heat dissipation area and improve the heating efficiency. A filter screen 8 is fixedly connected to the inner wall of the heating chamber 5. The filter screen 8 filters out the air inside the heating chamber 5. The space is divided into a top space and a bottom space. The filter screen 8 can separate lint and impurities in the air to avoid clogging the pipes and ensure that the heat circulation path is unobstructed for a long time. The lint on the filter screen 8 can be cleaned regularly through the door 6. The inner walls on both sides of the housing 1 are fixedly connected to the fixing plates 9. The two fixing plates 9 are hollow inside, and multiple air outlets 10 are provided on opposite sides. The multiple air outlets 10 are all trumpet-shaped and face the mesh cylinder 4. The upper end of the housing 1 is equipped with a first fan 11. The air inlet of the first fan 11 is connected to the top space of the heating box 5 through the air inlet pipe 12.

[0024] The first fan 11 has its outlet connected to the interior of the two fixed plates 9 via the first branch pipe 13. After the heating tube 7 inside the heating box 5 generates heat, the high-temperature air is transported by the first fan 11 to the outlet 10 of the fixed plate 9, where it is sprayed at multiple angles in a funnel shape, directly blowing onto the rotating mesh drum 4 for drying. This achieves tumbling drying of clothes, reducing wrinkles and drying time. Two rotating pipes 14 are rotatably connected to the inner wall of one side of the housing 1. Each of the two rotating pipes 14 has multiple air inlets 15 at its lower end, all of which are funnel-shaped and expand through the outlet 10. The large hot air coverage area and the air inlet 15 enhance the air suction efficiency, forming a high-efficiency airflow circulation for strong air drying and rapid recovery. The housing 1 is equipped with a swing mechanism for swinging two rotating tubes 14. The swing mechanism includes a threaded rod 16 rotatably connected between the inner walls of the two sides of the housing 1. A sliding plate 17 is threadedly connected to the threaded rod 16. The sliding plate 17 is slidably connected to the inner top of the housing 1. A sliding rod 18 is fixedly connected between the inner walls of the two sides of the housing 1. Two racks 19 are slidably connected to the sliding rod 18. The upper ends of the two racks 19 are fixedly connected to the lower ends of the sliding plate 17.

[0025] Gears 20 are fixedly connected to the outer walls of both rotating tubes 14, and both gears 20 mesh with corresponding racks 19. A second motor 21 is installed on the outer wall of the housing 1. The output shaft of the second motor 21 extends into the housing 1 and is fixedly connected to one end of the threaded rod 16. The second motor 21 drives the rotating tubes 14 to swing through the threaded rod 16, sliding plate 17, rack 19, and gears 20, so that the suction angle of the air inlet 15 changes dynamically. Both the first motor 3 and the second motor 21 are servo motors that can change the rotation speed and rotation direction. The machine has a second fan 22 installed at the upper end of the housing 1. The air inlet of the second fan 22 is connected to the interior of two rotating pipes 14 through a second branch pipe 23. The second branch pipe 23 is a flexible hose. The air outlet of the second fan 22 is connected to the bottom space of the heating box 5 through an air outlet pipe 24. The dried humid air is drawn into the second fan 22 through the air inlet 15 of the rotating pipe 14 and sent back to the bottom space of the heating box 5 through the air outlet pipe 24. The heat is repeatedly utilized in the closed loop from the heating box 5 to the housing 1 and back to the heating box 5, which can reduce the loss caused by direct heat emission.

[0026] In this utility model, when in use, clothes are placed in the mesh tube 4, the sealing door 2 is closed, and then the heating tube 7 is turned on. After the heating tube 7 is powered on, it heats up, and the air in the heating box 5 is heated to form a high-temperature airflow. Then the first motor 3 is started, which rotates the mesh tube 4, thereby causing the clothes to tumble, so that each piece of clothing has the opportunity to be exposed to the hot air spray area, improving the overall drying uniformity.

[0027] Simultaneously, the first fan 11 and the second fan 22 can be started. After the first fan 11 is started, it will draw in the hot air from the top of the heating box 5 through the air inlet pipe 12, press it into the inside of the two fixed plates 9 through the first branch pipe 13, and then blow it at high speed towards the rotating mesh cylinder 4 through the trumpet-shaped air outlet 10. The hot air is sprayed from both sides at multiple angles, quickly evaporating the moisture in the clothes and forming humid air containing residual heat. At this time, the second fan 22 draws the humid air out from the rotating pipe 14 through the second branch pipe 23 and sends it back to the bottom space of the heating box 5 through the air outlet pipe 24. The humid air is reheated by the heating pipe 7 here, and at the same time, it is filtered by the filter screen 8 to ensure that the circulating air is clean. In this way, the closed loop of hot air jet drying and humid air recovery and reheating realizes the recycling of heat energy to reduce energy consumption, while strengthening airflow convection to accelerate drying.

[0028] During the above process, the second motor 21 can also be started to rotate the threaded rod 16, which in turn causes the sliding plate 17 to move. The movement of the sliding plate 17 will drive the two racks 19 to move. When the racks 19 slide to the left or right, they drive the gear 20 to rotate through the meshing of the tooth surfaces, which in turn drives the rotating tube 14 to rotate around its own axis. The upper end of the rotating tube 14 is rotatably connected to the inner wall of the housing 1 (fulcrum), and the lower end makes a circular motion with the rotation of the gear 20. Therefore, the entire rotating tube 14 will swing back and forth around the fulcrum, which can dynamically change the suction angle of the air inlet 15, enhance the uniformity and fluidity of the airflow in the housing 1, avoid drying dead corners, and improve the heat recovery efficiency and the uniformity of drying clothes.

[0029] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

Claims

1. A laundry dryer which can be recycled with thermal energy, comprising a casing (1), characterized in that, A sealing door (2) is hinged to the outer wall of the housing (1). A first motor (3) is installed on the outer wall of the housing (1). The output shaft of the first motor (3) extends into the housing (1) and is fixedly connected to a mesh cylinder (4). A heating box (5) is fixedly connected to the upper end of the housing (1). A box door (6) is hinged to the outer wall of the heating box (5). A heating tube (7) is installed inside the heating box (5). A filter screen (8) is fixedly connected to the inner wall of the heating box (5). Fixing plates (9) are fixedly connected to the inner walls of both sides of the housing (1). Both fixing plates (9) are hollow inside and have multiple air outlets (10) on opposite sides. A first motor (3) is installed on the upper end of the housing (1). The first fan (11) has its air inlet end connected to the top space of the heating box (5) through the air inlet pipe (12), and its air outlet end connected to the interior of two fixed plates (9) through the first branch pipe (13). Two rotating pipes (14) are rotatably connected to one side of the inner wall of the housing (1). Multiple air inlets (15) are provided at the lower ends of the two rotating pipes (14). A second fan (22) is installed at the upper end of the housing (1). The air inlet end of the second fan (22) is connected to the interior of the two rotating pipes (14) through the second branch pipe (23), and its air outlet end is connected to the bottom space of the heating box (5) through the air outlet pipe (24). The housing (1) is provided with a swing mechanism that swings two rotating tubes (14).

2. The heat-energically recyclable laundry dryer according to claim 1, characterized in that The swing mechanism includes a threaded rod (16) rotatably connected between the inner walls of the two sides of the housing (1), and a sliding plate (17) is threadedly connected to the threaded rod (16). The sliding plate (17) is slidably connected to the inner top of the housing (1).

3. The heat-energically recyclable laundry dryer according to claim 2, characterized in that A sliding rod (18) is fixedly connected between the inner walls of both sides of the housing (1). Two racks (19) are slidably connected on the sliding rod (18). The upper ends of the two racks (19) are fixedly connected to the lower end of the sliding plate (17).

4. The heat-energically recyclable laundry dryer according to claim 3, characterized in that Gears (20) are fixedly connected to the outer walls of both rotating tubes (14), and both gears (20) mesh with the corresponding racks (19).

5. The heat-energically recyclable laundry dryer according to claim 2, characterized in that, A second motor (21) is installed on the outer wall of the housing (1). The output shaft of the second motor (21) extends into the housing (1) and is fixedly connected to one end of the threaded rod (16).

6. The heat-energically recyclable laundry dryer according to claim 5, characterized in that The first motor (3) and the second motor (21) are both servo motors that can change their rotation speed and rotation direction.