Dryer with square integrated simple heating device
The innovative square integrated simple heating device solves the problems of low heat dissipation efficiency and high energy consumption of traditional dryers, achieving a high-efficiency, energy-saving and convenient drying effect, suitable for home kitchens, restaurants and food processing fields.
Patent Information
- Application Number
- CN202520221489.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-12
- Publication Date
- 2026-02-03
- Estimated Expiration
- 2035-02-12
AI Technical Summary
Traditional dryers have low heat dissipation efficiency, high energy consumption, and complex maintenance, making it difficult to meet the needs of modern families for high efficiency, energy saving, and convenience.
It adopts a simple square integrated heating device, including a hollow mica sheet frame and heating wires arranged around it. Combined with a uniform heat dissipation groove design and an efficient air duct system, it is equipped with a touch control panel and intelligent control circuit board, which reduces manufacturing costs and improves heat conduction efficiency and ease of operation.
It achieves efficient, energy-saving, and convenient drying, reduces manufacturing costs, and provides safety and environmental friendliness, making it suitable for home kitchens, restaurants, and food processing.
Smart Images

Figure CN223869772U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a dryer, and more specifically, to a dryer with a simple square integrated heating device, belonging to the field of dryers. Background Technology
[0002] In modern family life, dryers have become an indispensable kitchen appliance. However, traditional dryers generally use electric heating tubes or quartz glass tubular heating elements with ceramic support frames. These heating methods not only have low heat dissipation efficiency but also often rely on complex reflective devices to improve drying effects, which undoubtedly increases manufacturing costs and ease of use. Furthermore, these traditional heating elements also suffer from high energy consumption and complex maintenance, failing to meet the modern family's demands for high efficiency, energy saving, and convenience. Therefore, developing a new type of dryer heating device is key to solving these problems. Summary of the Invention
[0003] To address the aforementioned technical problems, this utility model provides a dryer with a simple, integrated square heating device, featuring a simple structure, low cost, and convenient use.
[0004] To achieve the above objectives, this utility model is implemented through the following technical solution:
[0005] This utility model discloses a dryer with a simple square integrated heating device, characterized in that: it includes a dryer body, which from top to bottom includes an upper cover, a drying hopper, a main unit housing with a touch control panel, a bottom cover, and a heating element, fan blades, a motor, and a control circuit board located inside the main unit housing. The upper cover has multiple air outlets and can cover the drying hopper. The drying hopper can be installed at the upper end of the main unit housing. The heating element is located between the drying hopper and the main unit housing. The fan blades and motor are arranged below the heating element after assembly. The motor and the touch control panel are electrically connected to the control circuit board. The bottom cover is connected to the lower end of the main unit housing and has a slotted air inlet.
[0006] Preferably, the heating component includes a hollowed-out mica sheet frame, a heating wire surrounding the mica sheet frame, a high-temperature cotton thread threaded inside the heating wire, the heating wire being divided into 8 uniform sub-heating wires, adjacent sub-heating wires being riveted together with copper eyelets, and a fuse, a connecting wire, and a connecting terminal being sequentially connected to the end of the heating wire.
[0007] Preferably, the heating element inside the main housing is covered with a heat dissipation cover, and the heat dissipation cover has heat dissipation grooves on the side. The heat dissipation grooves can evenly distribute hot air into the drying chamber, and the heating element is arranged below the heat dissipation cover 3.
[0008] Preferably, the width of the heat dissipation grooves on the side of the heat dissipation cover is no more than 3.2 mm and they are evenly distributed. The heat dissipation cover is provided with a pressure relief hole in the middle to reduce the negative pressure of the motor rotation. The diameter of the pressure relief hole is no more than 3.2 mm.
[0009] Preferably, the groove-shaped air inlet is an air inlet trough to reduce product noise and increase airflow, thereby drying food faster; the width of the air inlet trough does not exceed 3.2mm.
[0010] Preferably, the connecting wires and connecting terminals are fitted with heat-shrink tubing.
[0011] Preferably, the mica sheet frame is provided with riveting holes for connection to the interior of the main unit housing.
[0012] Preferably, the main housing is provided with screw posts, which correspond to the riveting holes on the mica sheet frame for easy fixing with screws. The main housing is provided with wire through holes, through which the connecting wires and connecting terminals pass and are connected to the control circuit board.
[0013] Preferably, the control circuit board includes a processor.
[0014] Preferably, the control circuit board is a microcontroller.
[0015] Beneficial effects: Compared to existing technologies, this reduces manufacturing costs, making dryers more accessible and affordable. In practical applications, this type of dryer can be widely used in various fields such as home kitchens, restaurants, and food processing, providing users with efficient, energy-saving, and convenient drying solutions. At the same time, its innovative design and optimized performance also provide valuable reference and guidance for the future development of the dryer industry. Attached Figure Description
[0016] Figure 1 This is a disassembly diagram of the utility model.
[0017] Figure 2 This is a schematic diagram of the heating component structure of this utility model. Detailed Implementation
[0018] 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 protection scope of the present utility model.
[0019] In the description of the utility model, it should be noted that the terms "upper", "lower", "inner", "outer", "left", "right", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.
[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0021] This patent proposes a dryer with a simple, integrated square heating element. Its innovation lies in cleverly integrating key components such as the heating element, heat dissipation cover, fan blades, and motor into a compact square structure. This design not only simplifies the dryer's internal structure and reduces manufacturing costs but also significantly improves heat transfer efficiency. Furthermore, the square structure facilitates daily maintenance and cleaning for users.
[0022] As a key component for heat exchange between the heating element and the outside air, the design of the heat dissipation cover is crucial. The heat dissipation cover in this patent features side-mounted heat dissipation grooves. These grooves are evenly distributed and their width is precisely controlled within 3.2mm to ensure that hot air is evenly distributed into the drying chamber. Furthermore, a pressure-reducing hole is provided in the center of the heat dissipation cover to reduce the negative pressure generated during motor rotation, further improving drying efficiency.
[0023] As the core component of the dryer, the heating element's performance directly affects drying efficiency and energy consumption. The heating element in this patent uses a hollowed-out mica sheet frame as its support structure, with heating wires arranged around it. This design not only reduces overall weight but also improves heat transfer efficiency. Simultaneously, the heating wires are precisely divided into eight segments and riveted together using copper eyelets to ensure even heat distribution. Furthermore, a high-temperature cotton thread is threaded inside the heating wires to enhance their stability and durability.
[0024] To facilitate user installation and maintenance, this patent incorporates numerous design considerations in the dryer. For example, the mica sheet frame is equipped with riveting holes for a secure connection to the main unit. Simultaneously, the main unit contains screw posts that correspond one-to-one with the riveting holes on the mica sheet frame, allowing users to easily secure the heating element to the main unit using screws. Furthermore, the main unit also features wiring holes for easy access and connection of wires, terminals, and other components.
[0025] Specific implementation techniques:
[0026] like Figure 1-2 The illustration shows a specific embodiment of a dryer with a simple, square integrated heating device. This embodiment includes a dryer body, which, from top to bottom, comprises an upper cover 1, a drying hopper 2, a main unit housing 5 with a touch control panel, a bottom cover 8, and a heating element 4, a fan blade 6, a motor 7, and a control circuit board located within the main unit housing 5. The upper cover 1 has multiple air outlets and can cover the drying hopper 2 (multiple air outlets ensure hot air circulation to remove moisture and dry food faster). The drying hopper 2 can be installed at the upper end of the main unit housing 5. The heating element 4 is located between the drying hopper 2 and the main unit housing 5. The fan blade 6 and motor 7 are assembled and arranged below the heating element 4. The motor 7 and the touch control panel are electrically connected to the control circuit board. The bottom cover 8 is connected to the lower end of the main unit housing 5 and has a grooved air inlet (facilitating airflow throughout the appliance and accelerating food drying). The heating component 4 includes a hollowed-out mica sheet frame 1.1, around which a heating wire 8.1 is arranged. A high-temperature cotton thread 2.1 is threaded inside the heating wire 8.1. The heating wire 8.1 is divided into 8 uniform sub-heating wires, and adjacent sub-heating wires are riveted together with copper eyelets 3.1. A fuse 4.1, a connecting wire 5.1, and a connecting terminal 6.1 are connected sequentially to the end of the heating wire 8.1.
[0027] In a preferred embodiment, the heating element 4 inside the main housing 5 is covered with a heat dissipation cover 3. The heat dissipation cover 3 has heat dissipation grooves on its side, which can evenly distribute hot air into the drying chamber 2. The heating element 4 is arranged below the heat dissipation cover 3.
[0028] When the motor 7 rotates, it drives the fan blade 6 to rotate, generating air that blows onto the heating element 4. The air is then evenly dissipated into the drying chamber 2 through the heat dissipation cover 3, and then quickly flows out through the air outlet of the upper cover 1, thereby removing moisture from the food more quickly and drying the food faster.
[0029] In a preferred embodiment, the width of the heat dissipation grooves on the side of the heat dissipation cover 3 is no more than 3.2 mm and they are evenly distributed. The heat dissipation cover 3 has a pressure relief hole in the middle to reduce the negative pressure of the motor 7 during rotation. The diameter of the pressure relief hole is no more than 3.2 mm.
[0030] In a preferred embodiment, the groove-shaped air inlet is an air inlet trough to reduce product noise and increase airflow, thereby drying food faster; the width of the air inlet trough does not exceed 3.2mm.
[0031] In a preferred embodiment, a heat-shrink tubing 7.1 is fitted onto the connecting wire 5.1 and the connecting terminal 6.1.
[0032] In a preferred embodiment, the mica frame 1.1 is provided with riveting holes for connection to the interior of the main housing 5. Specifically, the main housing 5 is provided with screw posts, which correspond to the riveting holes on the mica frame 1.1 for fixing with screws. The main housing 5 is provided with wire through holes, through which the connecting wire 5.1 and the connecting terminal 6.1 pass and connect to the control circuit board via the connecting terminal 6.1.
[0033] In a preferred embodiment, the control circuit board includes a processor for control; the control circuit board is a microcontroller.
[0034] Summary of the technical solution of this patent:
[0035] 1. High-efficiency heat conduction and uniform heat dissipation design
[0036] This dryer uses a simple, square, integrated heating element, the core of which lies in its innovative heating component design. This heating component is supported by a hollowed-out mica sheet frame. This design not only reduces overall weight but also improves heat transfer efficiency, as the mica sheet possesses excellent insulation and high-temperature resistance, effectively protecting the heating wires from external environmental influences. The heating wires surrounding the mica sheet frame are precisely divided into eight segments and riveted together using copper eyelets. This evenly distributed design ensures uniform heat generation and dissipation, preventing localized overheating, thereby improving drying efficiency and protecting food quality.
[0037] 2. Intelligent control and convenient operation
[0038] The main unit is equipped with a touch control panel, allowing users to set drying parameters such as temperature and time through simple touch operations. Precise control requires selecting the appropriate control program based on actual needs and is not limited by the technology described in this application. The control panel is electrically connected to the internal control circuit board, ensuring that commands are quickly and accurately transmitted to the motor and heating components, achieving an intelligent drying process. Furthermore, the entire system has a simple design, reducing the complex reflective devices and heat dissipation structures found in traditional dryers, making installation and maintenance more convenient.
[0039] 3. Optimize air duct design and noise reduction measures
[0040] The dryer's air duct design fully considers airflow and noise control. Multiple air outlets on the top cover and the slotted air inlet on the bottom cover together form a highly efficient air duct system. This not only accelerates the circulation of hot air and removes moisture from the food, but also effectively reduces wind resistance and noise generation. In particular, the width of the air inlet slot is precisely controlled within 3.2mm. This detailed design not only optimizes airflow but also further reduces operating noise levels, providing a more comfortable user experience.
[0041] 4. Enhanced safety performance
[0042] Safety is always the primary consideration in the design of home appliances. In the heating element of this dryer, the heating wire is connected to the power supply via a fuse. In the event of an overload or short circuit, the fuse will quickly melt, cutting off the power and effectively preventing fires and other safety accidents. Meanwhile, heat-shrink tubing on the connecting wires and terminals provides additional insulation protection, further enhancing overall safety.
[0043] 5. Cost-effectiveness and environmental protection concept
[0044] Compared to traditional electric heating tubes or quartz glass tubular heating elements, the heating element used in this dryer has a significant cost advantage. Its simple structure, readily available materials, and high production efficiency greatly reduce manufacturing costs. Furthermore, its high heating efficiency results in relatively low energy consumption, meeting the energy-saving and environmentally friendly needs of modern households. Simultaneously, the dryer's design facilitates disassembly and recycling, aligning with sustainable development principles.
[0045] Finally, it should be noted that this utility model is not limited to the above embodiments, and many variations are possible. All variations that can be directly derived or conceived by those skilled in the art from the disclosure of this utility model should be considered within the protection scope of this utility model.
Claims
1. A dryer with a simple, integrated square heating element, characterized in that: The dryer body includes, from top to bottom, an upper cover (1), a drying hopper (2), a main unit housing (5) with a touch control panel, a bottom cover (8), and a heating element (4), a fan blade (6), a motor (7), and a control circuit board located inside the main unit housing (5). The upper cover (1) has multiple air outlets and can cover the drying hopper (2). The drying hopper (2) can be installed on the upper end of the main unit housing (5). The heating element (4) is located between the drying hopper (2) and the main unit housing (5). The fan blade (6) and the motor (7) are arranged below the heating element (4) after assembly. The motor (7) and the touch control panel are electrically connected to the control circuit board. The bottom cover (8) is connected to the lower end of the main unit housing (5) and has a slotted air inlet.
2. A dryer with a simple square integrated heating device according to claim 1, characterized in that: The heating component (4) includes a hollowed-out mica sheet frame (1.1), and a heating wire (8.1) is arranged around the mica sheet frame (1.1). A high-temperature cotton thread (2.1) is threaded inside the heating wire (8.1). The heating wire (8.1) is divided into 8 uniform sub-heating wires. Adjacent sub-heating wires are riveted together with copper eyelets (3.1). A fuse (4.1), a connecting wire (5.1), and a connecting terminal (6.1) are connected sequentially to the end of the heating wire (8.1).
3. A dryer with a simple square integrated heating device according to claim 1 or 2, characterized in that: The heating component (4) inside the main housing (5) is covered with a heat dissipation cover (3). The heat dissipation cover (3) has a heat dissipation groove on the side. The heat dissipation groove can evenly distribute hot air into the drying chamber (2). The heating component (4) is arranged below the heat dissipation cover (3).
4. A dryer with a simple square integrated heating device according to claim 3, characterized in that: The heat dissipation grooves on the side of the heat dissipation cover (3) are not more than 3.2 mm wide and are evenly arranged. A pressure reducing hole is provided in the middle of the heat dissipation cover (3) to reduce the negative pressure of the motor (7) rotation. The diameter of the pressure reducing hole is not more than 3.2 mm.
5. A dryer with a simple square integrated heating device according to claim 1, characterized in that: The groove-shaped air inlet is an air inlet slot, designed to reduce product noise and increase airflow, thereby drying food faster; the width of the air inlet slot does not exceed 3.2mm.
6. A dryer with a simple square integrated heating device according to claim 2, characterized in that: Heat shrink tubing (7.1) is fitted onto the connecting wire (5.1) and connecting terminal (6.1).
7. A dryer with a simple square integrated heating device according to claim 2, characterized in that: The mica frame (1.1) is provided with rivet holes for connection to the inside of the main housing (5).
8. A dryer with a simple square integrated heating device according to claim 7, characterized in that: The main housing (5) is provided with screw posts, which correspond to the rivet holes on the mica frame (1.1) for easy fixing with screws. The main housing (5) is provided with wire holes, through which the connecting wire (5.1) and connecting terminal (6.1) pass out and are connected to the control circuit board via the connecting terminal (6.1).
9. A dryer with a simple square integrated heating device according to claim 1, characterized in that: The control circuit board includes a processor.
10. A dryer with a simple square integrated heating device according to claim 1, characterized in that: The control circuit board is a microcontroller.