Alternating current variable frequency fan
By designing a simple rotor housing structure and assembly components, the problems of overheating and maintenance of AC inverter fans have been solved, enabling quick disassembly and air circulation, and improving the safety and service life of the fans.
Patent Information
- Application Number
- CN202522354805.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-06
- Publication Date
- 2026-11-03
- Estimated Expiration
- 2035-11-06
AI Technical Summary
Existing AC inverter fans have complex structures and strong sealing, which makes it difficult to dissipate heat, making them prone to overheating and difficult to maintain.
A structure including a rotor housing, connecting ribs, connecting plates, and mounting components was designed. The combination of a rotating plate, limiting posts, and disposable cable ties enables quick disassembly and fixation, ensures air circulation, reduces the risk of overheating, and improves stability.
Its simple structure reduces maintenance time and costs, improves operational efficiency, extends fan life, and enhances safety and reliability.
Smart Images

Figure CN224931885U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of fan technology, specifically to an AC variable frequency fan. Background Technology
[0002] AC inverter fans represent a significant upgrade in fan technology. By introducing inverter technology, they fundamentally change the way motors work, bringing tremendous advantages in energy saving, quiet operation, comfort, and intelligence.
[0003] Existing fan structures are relatively complex and poorly designed. In actual use, due to the strong sealing of the outer casing, internal heat is difficult to dissipate, which can easily lead to overheating failure, affecting fan performance and lifespan. Furthermore, disassembly is difficult when inspecting the internal condition of the casing, which greatly increases the difficulty of maintenance. To address this problem, the inventor designed an AC variable frequency fan. Utility Model Content
[0004] The purpose of this utility model is to provide an AC variable frequency fan that has the advantages of simple structure, reasonable design, full functionality, and greatly reduces maintenance time and cost while improving operating efficiency, thus solving the problems mentioned in the above technical background.
[0005] To achieve the above objectives, the present invention provides the following technical solution: an AC variable frequency fan, the fan comprising a rotor housing, connecting ribs, a connecting plate, and mounting components, the connecting ribs being fixed to the outer surface of the connecting plate, the connecting plate being located inside the rotor housing, and the mounting components being located on both sides of the connecting plate; The mounting components include a positioning plate, a rotating groove, a connecting shaft, and a rotating plate. The positioning plate is fixed on both sides of the inner wall of the rotor housing, and the surface of the positioning plate is in contact with the connecting rib. The rotating groove is opened inside the positioning plate and is distributed in a mirror image with reference to the central axis of the positioning plate. The connecting shaft is fixed inside the rotating groove, and the rotating plate is rotatably connected to the outside of the connecting shaft, and the surface of the rotating plate is in contact with the surface of the connecting rib.
[0006] Preferably, a limiting post is connected through the inside of the rotating plate, and the surface of the limiting post is in contact with the surface of the connecting rib.
[0007] Preferably, a guide plate is fixed to the upper surface of the limiting post, and the surface of the guide plate is in contact with the surface of the rotating plate located at the top.
[0008] Preferably, the limiting post has an installation groove inside, and the installation groove is located in the middle of the limiting post.
[0009] Preferably, the mounting groove is rotatably connected to a movable plate, and the movable plate and the guide plate are provided with connecting holes.
[0010] Preferably, a disposable cable tie is provided inside the connection hole.
[0011] Preferably, a frame is provided on the outside of the rotor housing, and fan blades are fixed on the outer surface of the rotor housing.
[0012] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model provides an AC variable frequency fan, which includes a rotor housing, connecting ribs, connecting plate, and mounting components. The mounting components include a positioning plate, a rotating groove, a connecting shaft, and a rotating plate. The overall structure is simple and reasonably designed. Through the combination design of the rotating plate, limiting post, and disposable cable ties, the rotor housing can be quickly opened and closed, which greatly reduces maintenance time and cost and improves operating efficiency. Moreover, the use of disposable cable ties and limiting post ensures the stability of the rotating plate during operation, prevents loosening caused by vibration or external force, and enhances the safety and reliability of the fan.
[0013] 2. This utility model promotes air circulation and avoids internal heat accumulation by forming a gap between the rotor shell and the connecting plate through the connecting ribs, thereby reducing the risk of overheating and extending the service life of the fan. Attached Figure Description
[0014] Figure 1 This is a three-dimensional schematic diagram of the present invention; Figure 2 This is a structural diagram of the rotor housing of this utility model; Figure 3 This is a structural diagram of the mounting component of this utility model; Figure 4 This is a cross-sectional view of the mounting component of this utility model.
[0015] The reference numerals and names in the figure are as follows: 1. Frame; 2. Rotor housing; 3. Fan blade; 4. Connecting rib; 5. Connecting plate; 6. Mounting component; 61. Positioning plate; 62. Rotating groove; 63. Connecting shaft; 64. Rotating plate; 65. Limiting post; 66. Guide plate; 67. Mounting groove; 68. Movable plate; 69. Connecting hole; 691. Disposable cable tie. Detailed Implementation
[0016] 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.
[0017] In the description of the embodiments of this utility model, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing the embodiments of this utility model and simplifying the description. They do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, a feature defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the embodiments of this utility model, "multiple" means two or more, unless otherwise explicitly specified.
[0018] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.
[0019] Please see Figures 1 to 4 The present invention provides an embodiment of an AC variable frequency fan, which includes a rotor housing 2, a connecting rib 4, a connecting plate 5, and a mounting component 6. The connecting rib 4 is fixed to the outer surface of the connecting plate 5, the connecting plate 5 is located inside the rotor housing 2, and the mounting component 6 is located on both sides of the connecting plate 5. Mounting component 6 includes a positioning plate 61, a rotating groove 62, a connecting shaft 63, and a rotating plate 64. The positioning plate 61 is fixed on both sides of the inner wall of the rotor housing 2, and the surface of the positioning plate 61 is in contact with the connecting rib 4. The rotating groove 62 is opened inside the positioning plate 61 and is mirror-distributed with reference to the central axis of the positioning plate 61. The connecting shaft 63 is fixed inside the rotating groove 62. The rotating plate 64 is rotatably connected to the outside of the connecting shaft 63, and the surface of the rotating plate 64 is in contact with the surface of the connecting rib 4.
[0020] The rotor housing 2 is the main housing of the fan, used to house and protect the internal components. The fan blades 3 are fixed on its outer surface, responsible for generating airflow. The connecting rib 4 is used to connect the connecting plate 5 and the rotor housing 2. Its key function is to maintain the gap between the rotor housing 2 and the connecting plate 5 to avoid internal heat accumulation. The connecting plate 5 is detachably connected to the rotor housing 2 through the mounting piece 6. The positioning plate 61 fits against the surface of the connecting rib 4 to ensure the correct positioning and stability of the connecting plate 5. The rotating groove 62 is used to accommodate the connecting shaft 63 and provide space for the rotation of the rotating plate 64. The connecting shaft 63 serves as the rotation axis of the rotating plate 64, allowing the rotating plate 64 to switch between horizontal and vertical states. The rotating plate 64 is used to clamp and fix the connecting rib 4.
[0021] A limiting post 65 is connected through the inside of the rotating plate 64, and the surface of the limiting post 65 is in contact with the surface of the connecting rib 4.
[0022] The limiting post 65 is used to further fix the position of the rotating plate 64 and prevent it from moving accidentally.
[0023] A guide plate 66 is fixed on the upper surface of the limiting post 65, and the surface of the guide plate 66 is in contact with the surface of the top rotating plate 64.
[0024] The guide plate 66 guides the insertion and removal of the limiting post 65, ensuring alignment and stability.
[0025] The limiting post 65 has an installation groove 67 inside, which is located in the middle of the limiting post 65.
[0026] Mounting slot 67 is used to accommodate movable plate 68, allowing movable plate 68 to be retracted or extended.
[0027] The mounting slot 67 is rotatably connected to a movable plate 68, and the movable plate 68 and the guide plate 66 are provided with connecting holes 69.
[0028] The movable plate 68 can be aligned with the guide plate 66 through the connecting hole 69 for fixing the disposable cable tie 691. The connecting hole 69 is used to set the disposable cable tie 691 to achieve quick fixing and release.
[0029] The connection hole 69 is equipped with a disposable cable tie 691.
[0030] Disposable cable ties 691 are used to lock the movable plate 68 and the guide plate 66, ensuring that the limit post 65 and the rotating plate 64 remain fixed during operation. They can be quickly disassembled by simply cutting them during maintenance.
[0031] A frame 1 is provided on the outside of the rotor housing 2, and fan blades 3 are fixed on the outer surface of the rotor housing 2.
[0032] The frame 1 serves as the overall support structure for the fan, providing mechanical strength and mounting points. The fan blades 3 generate airflow through rotation and are the core functional components of the fan.
[0033] Working principle: The connecting ribs 4 create a gap between the rotor housing 2 and the connecting plate 5, thereby preventing overheating of the environment inside the rotor housing 2. When it is necessary to inspect the environment inside the rotor housing 2, first cut the disposable cable tie 691, apply a flipping force to the movable plate 68 so that the movable plate 68 retracts into the mounting groove 67, apply a pulling force to the guide plate 66 so that the limiting post 65 disengages from the interior of the rotating plate 64, and apply a flipping force to the rotating plate 64 under the design of the connecting shaft 63 so that the rotating plate 64 changes from a horizontal state to a vertical state. Apply a pulling force to the connecting plate 5 to expose the environment inside the rotor housing 2. After the inspection is completed, put the connecting plate 5 into the interior of the rotor housing 2 so that the connecting rib 4 is in contact with the surface of the positioning plate 61. Then apply a flipping force to the rotating plate 64 so that the rotating plate 64 changes from a vertical state to a horizontal state. Insert the limiting post 65 into the interior of the rotating plate 64 so that the guide plate 66 is in contact with the surface of the rotating plate 64. Then take the movable plate 68 out of the mounting groove 67. Under the design of the connecting hole 69, pass the disposable cable tie 691 through the guide plate 66 and the interior of the movable plate 68 for fixation.
[0034] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.
Claims
1. An AC variable frequency fan, characterized in that, include: The rotor housing (2), connecting ribs (4), connecting plate (5) and mounting parts (6) are provided. The connecting ribs (4) are fixed on the outer surface of the connecting plate (5). The connecting plate (5) is located inside the rotor housing (2). The mounting parts (6) are located on both sides of the connecting plate (5). The mounting component (6) includes a positioning plate (61), a rotating groove (62), a connecting shaft (63), and a rotating plate (64). The positioning plate (61) is fixed on both sides of the inner wall of the rotor housing (2). The surface of the positioning plate (61) is in contact with the connecting rib (4). The rotating groove (62) is opened inside the positioning plate (61). The rotating groove (62) is mirrored with reference to the central axis of the positioning plate (61). The connecting shaft (63) is fixed inside the rotating groove (62). The rotating plate (64) is rotatably connected to the outside of the connecting shaft (63), and the surface of the rotating plate (64) is in contact with the surface of the connecting rib (4).
2. The AC variable frequency fan according to claim 1, characterized in that, The rotating plate (64) is internally connected to a limiting post (65), and the surface of the limiting post (65) is in contact with the surface of the connecting rib (4).
3. An AC variable frequency fan according to claim 2, characterized in that, The upper surface of the limiting post (65) is fixed with a guide plate (66), and the surface of the guide plate (66) is in contact with the surface of the rotating plate (64) located at the top.
4. An AC variable frequency fan according to claim 2, characterized in that, The limiting post (65) has an installation groove (67) inside, and the installation groove (67) is located in the middle of the limiting post (65).
5. An AC variable frequency fan according to claim 4, characterized in that, The mounting groove (67) is rotatably connected to a movable plate (68), and the movable plate (68) and the guide plate (66) are provided with connecting holes (69).
6. An AC variable frequency fan according to claim 5, characterized in that, The connection hole (69) is provided with a disposable cable tie (691).
7. An AC variable frequency fan according to claim 1, characterized in that, The rotor housing (2) is provided with a frame (1) on its exterior, and fan blades (3) are fixed on the outer surface of the rotor housing (2).
