Air circulating fan

Abstract

The utility model discloses an air circulation fan, including support mechanism, blow mechanism and operating mechanism, blow mechanism is connected in the upper portion of support mechanism, blow mechanism includes outer rotor motor, fan blade and screen cover subassembly, the output of fan blade is connected in the outer rotor motor, the outer rotor motor with fan blade all set up in screen cover subassembly, operating mechanism is connected in the one side of screen cover subassembly away from support mechanism. The operating mechanism of utility model is connected in the one side of screen cover subassembly away from support mechanism, and the user operation is convenient.

Description

Technical Field

[0001] This utility model relates to the field of fan manufacturing technology, and in particular to an air circulation fan. Background Technology

[0002] An air circulator is an appliance designed to promote efficient indoor air circulation. Its development stemmed from the need to address the uneven cooling and high energy consumption of traditional fans and air conditioners. Early fans could only blow air directly, resulting in harsh airflow. When used in conjunction with air conditioning, this easily led to uneven room temperature, creating a dual bottleneck of comfort and energy efficiency. Air circulators, referencing aerospace turbofan technology, use specific airfoil profiles and airflow guide structures to propel air to distant points, creating indoor circulation and thus equalizing the ambient temperature throughout the space. The control and diverse functions of an air circulator are integrated into its operating mechanism, typically using touch-sensitive buttons or knobs, integrating core functions such as fan speed adjustment, mode switching, timer shutdown, and oscillation control. Currently, most air circulators have their operating mechanisms located behind the blower mechanism and at the top of the support rod, or below the blower mechanism and in front of the support rod. This requires users to walk around to the back of the air circulator or bend over to the middle of the fan to operate it, which is inconvenient. Utility Model Content

[0003] This invention aims to solve at least one of the technical problems existing in the prior art. To this end, this invention proposes an air circulator fan, in which the operating mechanism is connected to the side of the mesh assembly away from the support mechanism, facilitating user operation.

[0004] An air circulator fan according to an embodiment of the present invention includes: Supporting institutions; The blower mechanism is connected to the upper part of the support mechanism. The blower mechanism includes an external rotor motor, fan blades and a mesh cover assembly. The fan blades are connected to the output end of the external rotor motor. Both the external rotor motor and the fan blades are set inside the mesh cover assembly. The operating mechanism is connected to the side of the mesh assembly away from the support mechanism.

[0005] An air circulator fan according to an embodiment of the present utility model has at least the following beneficial effects: By placing the operating mechanism of the air circulator fan on the side of the grille assembly furthest from the support structure—the air outlet side—the user experience is optimized. Users no longer need to walk around to the back of the fan or bend over to the middle of the unit; they can easily perform various operations simply by standing directly in front of the fan. This improves the intuitiveness and efficiency of operation control. It effectively prevents accidental contact with the power cord that might occur when operating from behind the fan, thus reducing safety hazards caused by tripping, the power cord being pulled out of the socket, or the power cord breaking, significantly enhancing safety and reliability. It also avoids frequent bending over, reducing strain on the user's back and improving comfort. Furthermore, it effectively prevents the risk of hair getting caught in the fan blades when users with long hair bend over, further enhancing safety and user-friendliness. While improving operational convenience and efficiency, it also enhances safety and user experience, making it particularly suitable for various practical applications such as homes and offices.

[0006] According to an embodiment of the present utility model, an air circulator fan includes a blower mechanism that further includes a fixed cylinder. One end of the fixed cylinder is fixedly connected to a support mechanism, and the other end of the fixed cylinder is fixedly connected to an operating mechanism.

[0007] According to an embodiment of the present invention, an air circulator fan has an electrical connection wire for the operating mechanism that is threaded through a fixed cylinder.

[0008] According to an embodiment of the present invention, an air circulation fan has an external rotor motor sleeved on the outside of a fixed cylinder.

[0009] According to an embodiment of the present invention, an air circulation fan includes an external rotor motor, a fixed cylinder, an operating mechanism, and a mesh cover assembly, all arranged coaxially.

[0010] According to an embodiment of the present invention, an air circulator fan includes a mesh assembly comprising a first cover and a second cover, the first cover and the second cover being detachably connected, the first cover being detachably connected to a support mechanism, and the second cover being detachably connected to an operating mechanism.

[0011] According to an embodiment of the present invention, an air circulator fan has a mounting hole in the center of the second cover, and the operating mechanism is loosely fitted into the mounting hole.

[0012] According to an embodiment of the present invention, an air circulator fan has an elastic rubber ring provided between the operating mechanism and the mounting hole.

[0013] According to an embodiment of the present invention, an air circulation fan includes an external rotor motor comprising an annular stator and an annular rotor. The annular rotor is rotatably sleeved on the radially outer side of the annular stator, and the fan blades are detachably connected to the annular rotor.

[0014] According to an embodiment of the present invention, an air circulation fan has an annular stator fixedly sleeved on a fixed cylinder, and the fixed cylinder is also sleeved with a rotating component, which is rotatably connected to the inner side of the annular rotor.

[0015] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of an air circulator fan according to an embodiment of the present utility model; Figure 2 This is a schematic diagram of another angle of an air circulator fan according to an embodiment of the present utility model; Figure 3 This is an exploded view of the blower mechanism, oscillation module, and operating mechanism of an air circulator fan according to an embodiment of the present utility model. Figure 4 This is an exploded view of the external rotor motor, fixed cylinder, rotating assembly, and electrical connection wires of an air circulator fan according to an embodiment of the present utility model. Figure 5 This is a cross-sectional view of an air circulator fan, including its external rotor motor, fixed cylinder, rotating assembly, and operating mechanism, according to an embodiment of the present invention.

[0017] Explanation of reference numerals in the attached figures: Support mechanism 100; Oscillating module 110; Support rod 120; External rotor motor 200; annular stator 210; annular rotor 220; Fan blade 300; First fan section 310; Second fan section 320; Net assembly 400; First cover 410; Second cover 420; Mounting hole 430; Fixed cylinder 500; Rotating assembly 600; First bearing 610; Second bearing 620; Operating mechanism 700; electrical connection wire 710; elastic rubber ring 720. Detailed Implementation

[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0019] In the description of this utility model, it should be understood that the directional descriptions, such as up, down, front, back, left, right, etc., indicate the directional or positional relationship based on the directional or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and 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. Therefore, they should not be construed as limitations on this utility model.

[0020] In the description of a utility model, "several" means one or more, "multiple" means two or more, "greater than," "less than," and "exceeding" are understood to exclude the stated number, while "above," "below," and "within" are understood to include the stated number. If the terms "first" and "second" are used, they are merely for distinguishing technical features and should not be construed as indicating or implying relative importance, or implicitly specifying the number of indicated technical features or the order of the indicated technical features.

[0021] In the description of this utility model, unless otherwise explicitly defined, terms such as "setting," "installation," and "connection" should be interpreted broadly, and those skilled in the art can reasonably determine the specific meaning of the above terms in this utility model in conjunction with the specific content of the technical solution.

[0022] Reference Figures 1 to 5 This utility model embodiment provides an air circulator fan, including a support mechanism 100, a blower mechanism, and an operating mechanism 700. Specifically, the support mechanism 100 includes an oscillating module 110 and a support rod 120 connected to each other. The oscillating module 110 is disposed above the support rod 120 and can oscillate to drive the blower mechanism to oscillate up and down and left and right. The blower mechanism is connected to the upper part of the support mechanism 100 and includes an external rotor motor 200, fan blades 300, and a mesh cover assembly 400. The fan blades 300 are connected to the output end of the external rotor motor 200, and both the external rotor motor 200 and the fan blades 300 are disposed within the mesh cover assembly 400. Specifically, the blower mechanism is connected to the oscillating module 110, enabling the blower mechanism to oscillate up and down and left and right.

[0023] The operating mechanism 700 is connected to the side of the grille assembly 400 away from the support mechanism 100. Specifically, the operating mechanism 700 includes a touch panel, a logic circuit module (not shown), and a cylindrical housing. The logic circuit module is housed within the cylindrical housing, and the touch panel is located on one side of the cylindrical housing. The operating mechanism 700 integrates functions such as fan speed adjustment, mode switching, timer shutdown, and oscillation control. Because the operating mechanism 700 is located on the grille assembly 400, users do not need to go behind the air circulator or bend over to the middle of the air circulator to operate it, thus improving the convenience of operating the air circulator.

[0024] Compared to existing technologies where the operating mechanism 700 is positioned behind the blower mechanism and on top of the support mechanism 100, or below the blower mechanism and in front of the support mechanism 100, this embodiment of the invention positions the operating mechanism 700 on the side of the mesh assembly 400 away from the support mechanism 100, specifically on the air outlet side of the air circulator fan. This layout significantly optimizes the user experience, eliminating the need for the user to walk behind the air circulator fan or bend over to the center of the unit; the user can easily perform various operations simply by standing directly in front of the fan. This enhances the intuitiveness and efficiency of operation control. This embodiment of the invention effectively prevents accidental contact with the power cord that might occur when the user walks behind the fan, thereby reducing safety hazards caused by the user tripping, the power cord being pulled out of the socket, or the power cord breaking, significantly enhancing safety and reliability. This also avoids the need for users to frequently bend over to operate the fan, helping to reduce the burden on the user's lower back and improving the comfort of using the air circulator. Furthermore, it effectively prevents the risk of long-haired users having their hair caught in the fan blades when bending over, further enhancing safety and user-friendliness during use. While improving operational convenience and efficiency, it also improves safety and user experience.

[0025] According to some embodiments of this application, refer to Figure 4 and Figure 5 The blower mechanism also includes a fixed cylinder 500, one end of which is fixedly connected to the support mechanism 100, and the other end of which is fixedly connected to the operating mechanism 700. The fixed cylinder 500 is used to connect the operating mechanism 700 and the support mechanism 100, thereby improving the connection reliability of the operating mechanism 700.

[0026] Furthermore, the electrical connection wire 710 of the operating mechanism 700 is threaded through the fixed cylinder 500. Specifically, the operating mechanism 700 is electrically connected to the external rotor motor 200 and the oscillating module 110 via the electrical connection wire 710 to control the external rotor motor 200 and the oscillating module 110. The electrical connection wire 710 passes through the fixed cylinder 500 to avoid being scratched by the rotating fan blades 300, thus providing good protection for the electrical connection wire 710 and saving space.

[0027] Furthermore, the outer rotor motor 200 is sleeved on the outside of the fixed cylinder 500. The structure is compact and provides a more reliable connection for the outer rotor motor 200, improving the working stability of the outer rotor motor 200.

[0028] Furthermore, referring to Figures 3 to 5The outer rotor motor 200, the fixed cylinder 500, the operating mechanism 700, and the mesh cover assembly 400 are all coaxially arranged. Specifically, the coaxial arrangement of the fixed cylinder 500 and the outer rotor motor 200 can reduce the shaking of the outer rotor motor 200 during operation and improve structural stability; the coaxial arrangement of the fixed cylinder 500, the operating mechanism 700, and the mesh cover assembly 400 improves the structural symmetry of the blower mechanism and is more conducive to manufacturing.

[0029] As a preferred option, refer to Figures 3 to 5 The fan blades 300, external rotor motor 200, fixed cylinder 500, operating mechanism 700 and screen assembly 400 are all coaxially arranged, which can reduce the relative sway of the fan blades 300 and improve the stability of the air circulator during operation.

[0030] According to some embodiments of this application, refer to Figure 3 The mesh cover assembly 400 includes a first cover 410 and a second cover 420, which are detachably connected. The first cover 410 is detachably connected to the support mechanism 100, and the second cover 420 is detachably connected to the operating mechanism 700. Specifically, the first cover 410 and the second cover 420 are detachably connected by threads, facilitating their disassembly and installation. Specifically, the first cover 410 is detachably connected to the support mechanism 100, which has external threads. After the first cover 410 is fitted onto the support mechanism 100, a locking nut engages with the external threads to press the first cover 410 onto the support mechanism 100, thus achieving a detachable connection between the first cover 410 and the support mechanism 100 for easy assembly and disassembly. The second cover 420 is detachably connected to the operating mechanism 700, facilitating the maintenance of the operating mechanism 700.

[0031] Furthermore, a mounting hole 430 is provided in the center of the second cover 420, and the operating mechanism 700 is fitted into the mounting hole 430 with a clearance fit. Specifically, both the first cover 410 and the second cover 420 are circular structures, and the mounting hole 430 is located at the center of the second cover 420, which improves the structural symmetry between the operating mechanism 700 and the second cover 420, making it easier for the user to operate the operating mechanism 700. The mounting hole 430 is located at the center of the second cover 420, and the operating mechanism 700 is fitted into the mounting hole 430 with a clearance fit. This ensures that when the first cover 410 and the second cover 420 are connected or disassembled via rotating threads, the operating mechanism 700 remains within the mounting hole 430, without obstructing the rotation of the second cover 420, thus improving the efficiency of installing and disassembling the second cover 420.

[0032] Furthermore, referring to Figure 3 and Figure 5An elastic rubber ring 720 is provided between the operating mechanism 700 and the mounting hole 430. Specifically, the elastic rubber ring 720 is sleeved on the outer side of the operating mechanism 700 in the circumferential direction. Since the operating mechanism 700 and the mounting hole 430 are connected with a clearance fit, the elastic rubber ring 720 can improve the airtightness between the operating mechanism 700 and the mounting hole 430, reduce the amount of air blown out of the air circulator fan between the operating mechanism 700 and the mounting hole 430, and improve the air output effect of the air circulator fan.

[0033] According to some embodiments of this application, refer to Figure 4 and Figure 5 The external rotor motor 200 includes an annular stator 210 and an annular rotor 220. The annular rotor 220 is rotatably mounted on the radially outer side of the annular stator 210. The fan blades 300 are detachably connected to the annular rotor 220. Specifically, the annular rotor 220 is the output end of the external rotor motor 200, and the annular rotor 220 can rotate relative to the annular stator 210. By using the rotation of the annular rotor 220 to drive the rotation of the fan blades 300, the rotation of the fan blades 300 is more stable compared to traditional air circulator fans.

[0034] Furthermore, the annular stator 210 is fixedly sleeved on the fixed cylinder 500, and the fixed cylinder 500 is also sleeved with a rotating assembly 600, which is rotatably connected to the inner side of the annular rotor 220. Specifically, the rotating assembly 600 includes a first bearing 610 and a second bearing 620, both of which are sleeved on the circumference of the fixed cylinder 500, and are respectively disposed on both sides of the annular stator 210 along its axial direction. By using the rotating assembly 600, the frictional force when the annular rotor 220 rotates relative to the fixed cylinder 500 can be reduced, maintaining the coaxiality of the fixed cylinder 500, the annular stator 210, and the annular rotor 220. Moreover, the annular rotor 220 can always be sleeved on the adjacent outer side of the annular stator 210, avoiding direct contact between the annular stator 210 and the annular rotor 220, which would affect their operation.

[0035] It is understood that, in some other embodiments, reference is made to... Figure 3 The fan blades 300 have a symmetrical butterfly-shaped structure. Specifically, the fan blades 300 include multiple first fan sections 310 and multiple second fan sections 320. The multiple first fan sections 310 are located inside the multiple second fan sections 320 and are arranged in a one-to-one correspondence, that is, one first fan section 310 is corresponding to one second fan section 320, and each first fan section 310 is matched and connected to the corresponding second fan section 320. Specifically, there are four first fan sections 310 and four second fan sections 320, forming four fan blades spaced apart. The fan blades have a symmetrical butterfly-shaped structure between opposite pairs of blades and are hollow inside, achieving a unique air outlet effect.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An air circulating fan characterized by, include: Support structure (100); A blower mechanism is connected to the upper part of the support mechanism (100). The blower mechanism includes an external rotor motor (200), a fan blade (300), and a mesh cover assembly (400). The fan blade (300) is connected to the output end of the external rotor motor (200). The external rotor motor (200) and the fan blade (300) are both disposed inside the mesh cover assembly (400). An operating mechanism (700) is connected to the side of the mesh assembly (400) away from the support mechanism (100).

2. An air circulating fan according to claim 1, wherein The blower mechanism also includes a fixed cylinder (500), one end of which is fixedly connected to the support mechanism (100), and the other end of which is fixedly connected to the operating mechanism (700).

3. An air circulating fan according to claim 2, wherein The electrical connection line (710) of the operating mechanism (700) is passed through the fixed cylinder (500).

4. An air circulating fan according to claim 3, wherein The external rotor motor (200) is sleeved on the outside of the fixed cylinder (500).

5. An air circulating fan according to claim 4, wherein The external rotor motor (200), the fixed cylinder (500), the operating mechanism (700), and the mesh cover assembly (400) are all coaxially arranged.

6. The air circulating fan of claim 1, wherein, The mesh assembly (400) includes a first cover (410) and a second cover (420), the first cover (410) and the second cover (420) being detachably connected, the first cover (410) being detachably connected to the support mechanism (100), and the second cover (420) being detachably connected to the operating mechanism (700).

7. An air circulating fan according to claim 6, wherein The second cover (420) has a mounting hole (430) in the center, and the operating mechanism (700) is fitted into the mounting hole (430) with clearance.

8. An air circulating fan according to claim 7, wherein An elastic rubber ring (720) is provided between the operating mechanism (700) and the mounting hole (430).

9. An air circulating fan according to claim 2, wherein The external rotor motor (200) includes an annular stator (210) and an annular rotor (220). The annular rotor (220) is rotatably sleeved on the radially outer side of the annular stator (210). The fan blade (300) is detachably connected to the annular rotor (220).

10. An air circulating fan according to claim 9, wherein The annular stator (210) is fixedly sleeved on the fixed cylinder (500), and the fixed cylinder (500) is also sleeved with a rotating assembly (600), which is rotatably connected to the inner side of the annular rotor (220).

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