A fan blade dismounting and mounting convenient magnetic transmission fan head and floor fan

Abstract

A fan head with convenient disassembly and assembly of fan blades and a floor fan, the fan head with convenient disassembly and assembly of fan blades comprises a fan head shell, a motor, fan blades, a fixed shaft, an N magnet group and an S magnet group, the motor is arranged in the fan head shell, and the N magnet group is arranged on a motor shaft; one end of the fixed shaft is fixed with the fan head shell, the S magnet group is arranged on the fan blades, the fan blades are detachably connected with the fixed shaft in a rotating mode, and the N magnet group and the S magnet group are magnetically attracted. The fan blades are magnetically attracted and driven, the fan blades are convenient to disassemble and assemble, the fixed shaft is arranged to prevent the fan blades from jumping and ensure that the fan blades rotate along an axis, and the maximum power of the motor is exerted.

Description

Technical Field

[0001] This utility model relates to a fan, and more particularly to a fan head. Background Technology

[0002] The existing technology, Chinese Patent 201010250806.8, describes a heat transfer device that uses a heat exchanger with a fluid inlet and a fluid outlet coupled to a power exchange unit. This heat exchanger uses a drive fan fluid inlet, a series of inner fan blades for receiving fluid from the drive fan fluid inlet, and a rotatable drive fan unit. The inner fan blades are attached to the drive fan unit along with drive magnets. The rotatable drive fan unit has a large number of outer fan blades and a series of embedded driven magnets. Fluid drives the inner fan blades and flows into the heat exchanger. The outer fan blades force air through the heat exchanger and cool the fluid. A power transmission wall located between the inner and outer magnets transfers the magnetic field from the inner magnets to the outer magnets to give rotation to the driven fan unit and the outer fan blades. The problems are: the fan unit is prone to shaking during rotation, and the motor output power is low. Utility Model Content

[0003] The purpose of this utility model is to provide a magnetically driven fan head with easy blade assembly and disassembly, which features convenient blade assembly and disassembly and prevents blade jumping.

[0004] This invention is achieved as follows: a magnetically driven fan head with easily detachable and assembled fan blades, characterized in that it includes a fan head housing, a motor, fan blades, a fixed shaft, an N-magnet assembly, and an S-magnet assembly. The motor is located inside the fan head housing, and the N magnet group is located on the motor shaft; one end of the fixed shaft is fixed to the fan head housing, and the S magnet group is located on the fan blade. The fan blade and the fixed shaft are rotatably coupled and detachably coupled, and the N magnet group and the S magnet group are magnetically attracted to each other.

[0005] The aforementioned magnetically driven fan head with easily detachable and assembled fan blades is characterized in that: the fan blade includes a cylindrical fan blade seat with one end open, blades, several radially distributed magnetic cavities on the circumference, and a fixing cover. The individual S-magnets in the S-magnet group are square in shape; A circular plate-shaped shaft head is provided on the fixed shaft; It also includes a silicone sleeve, which includes a central shaft hole and a countersunk hole at one end of the shaft head; The S-magnet assembly has individual S-magnets inside the radial magnet cavity, with silicone sleeves on the fixed cover. The fixed cover is fastened to the cylindrical fan blade seat, and the radial magnet cavity extends into the fixed cover. The fixed shaft and the central shaft hole, as well as the shaft head and the countersunk hole, are rotatably fitted and detachable.

[0006] The aforementioned magnetically driven fan head with easy blade assembly and disassembly is characterized in that: the cylindrical fan blade seat is provided with a fixing post, and the fixing cover is provided with a connecting hole, through which a screw passes and engages with the fixing post.

[0007] The aforementioned magnetically driven fan head with easily detachable and assembled fan blades is characterized in that the silicone sleeve is provided with an annular groove; The fixing cover has a fixing cavity that extends into the fixing cover, and the bottom plate of the fixing cavity has a circular sleeve; The silicone sleeve is fitted inside the fixed cavity and extends outwards, with the annular sleeve and the annular groove engaging.

[0008] The special feature of the magnetically driven fan head with easy fan blade assembly and disassembly is that the end plate of the cylindrical fan blade seat is provided with a countersunk hole. The silicone sleeve is fitted at the end and extends into the countersunk hole.

[0009] A floor fan, characterized by: including a base, a vertical tube, a front fan cover, a rear fan cover, and a magnetically driven fan head with easily detachable fan blades as described above; The rear grille and fan head housing are detachable, and the front grille and rear grille are detachable and can be fitted together.

[0010] This utility model discloses a magnetically driven fan head with easy blade assembly and disassembly. Due to this structure, the magnetic drive makes it easy to assemble and disassemble the fan blades. The fixed shaft setting prevents the fan blades from jumping and ensures that the fan blades rotate along the axis, so as to maximize the power of the motor. Attached Figure Description

[0011] Figure 1 This is a cross-sectional view of the present invention.

[0012] Figure 2 This is the second sectional view of this utility model.

[0013] Figure 3 This is a perspective view of the present invention.

[0014] Figure 4 This is one of the exploded perspective views of this utility model.

[0015] Figure 5 This is the second exploded perspective view of this utility model.

[0016] Figure 6 This is the third exploded perspective view of this utility model.

[0017] Figure 7 This is an exploded perspective view of the second embodiment of this utility model.

[0018] Figure 8 This is a perspective view of the second embodiment of this utility model. Detailed Implementation

[0019] 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.

[0020] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0021] Example 1 like Figure 1 As shown, a magnetically driven fan head with easily detachable and assembled fan blades includes a fan head housing 1, a motor 2, fan blades 3, a fixed shaft 4, an N-magnet assembly 5, and an S-magnet assembly 6. S-magnet group 6 is composed of several S-magnet individual units; The motor 2 is located inside the front end of the fan head housing 1, and the N-magnet assembly 5 is located on the motor shaft. One end of the fixed shaft 4 is fixed to the fan head housing 1, and the S-magnet assembly 6 is located on the fan blade 3. The fan blade 3 and the fixed shaft 4 are rotatably and detachably coupled, and the N-magnet assembly 5 and the S-magnet assembly 6 are magnetically attracted to each other. The fixed shaft 4 is designed to prevent the fan blade 3 from rotating off-axis, ensuring that the axis of the fan blade and the axis of the motor shaft coincide, thus preventing jumping or shaking.

[0022] As a further improvement of this utility model: the fan blade 3 includes a cylindrical fan blade seat 31 with one end open, a blade 32, a plurality of radial magnet cavities 33 evenly distributed on the circumference, and a fixing cover 34. The cylindrical fan blade seat 31, the blade 32 and the radial magnet cavities 33 are integrally molded from plastic material. The S-magnet unit 61 of the S-magnet group 6 is square; The fixed shaft 4 is provided with a circular plate-shaped shaft head 41; It also includes a silicone sleeve 7, which includes a central shaft hole (not marked) and a countersunk hole 71 at one end; The S-magnet unit 61 of the S-magnet assembly 6 is located inside the radial magnet cavity 33, and the silicone sleeve 7 is located on the fixed cover 34. The fixed cover 34 is fastened to the cylindrical fan blade seat 31, and the radial magnet cavity 33 extends into the fixed cover 34. The fixed shaft 4 is rotatably engaged with the central shaft hole, and the shaft head 41 is rotatably engaged with the shaft head countersunk hole 71 and is detachable. The silicone sleeve 7 serves to buffer and dampen vibration, compensate for errors in the fan blade axis and the motor axis, and prevent the fan blade from jumping or shaking.

[0023] As a further improvement of this utility model: the cylindrical fan blade seat 31 is provided with a fixing post 311, and the fixing cover 34 is provided with a connecting hole 341. The screw passes through the connecting hole 341 and is screwed into the fixing post 311.

[0024] As a further improvement of this utility model: the silicone sleeve 7 is provided with an annular groove 72; The fixing cover 34 is provided with a fixing cavity 35 extending into the fixing cover 34, and a circular sleeve 351 is provided on the bottom plate of the fixing cavity 35; The silicone sleeve 7 is located inside the fixed cavity 35 and extends outwards, and the annular sleeve 351 and the annular groove 71 are engaged.

[0025] As a further improvement of this utility model: the end plate of the cylindrical fan blade seat 31 is provided with a countersunk hole 312; The silicone sleeve 7 is located at one end and extends into the countersunk hole 312. This structure prevents the silicone sleeve 7 from shaking.

[0026] Example 2 like Figure 1 , Figure 7 , Figure 8 As shown, a floor fan includes a base 8, a vertical tube 9, a front fan cover 101, a rear fan cover 102, and a fan blade 3 as described above, which is easy to assemble and disassemble with a magnetic drive fan head. The rear mesh cover 102 and the fan head shell 1 are detachable, and the front mesh cover 101 and the rear mesh cover 102 are detachable and can be fitted together.

[0027] 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. A magnetically driven fan head with easily detachable and assembled fan blades, characterized in that: Includes fan head housing, motor, fan blades, fixed shaft, N magnet assembly, and S magnet assembly. The motor is located inside the fan head housing, and the N magnet group is located on the motor shaft; one end of the fixed shaft is fixed to the fan head housing, and the S magnet group is located on the fan blade. The fan blade and the fixed shaft are rotatably and detachably connected, and the N magnet group and the S magnet group are magnetically attracted to each other.

2. The magnetically driven fan head with easily detachable and assembled fan blades as described in claim 1, characterized in that: The fan blade includes a cylindrical fan blade seat with one end open, blades, several radially distributed magnetic cavities on the circumference, and a fixing cover. The individual S-magnets in the S-magnet group are square in shape; A circular plate-shaped shaft head is provided on the fixed shaft; It also includes a silicone sleeve, which includes a central shaft hole and a countersunk hole at one end of the shaft head; The S-magnet assembly has individual S-magnets inside the radial magnet cavity, with silicone sleeves on the fixed cover. The fixed cover is fastened to the cylindrical fan blade seat, and the radial magnet cavity extends into the fixed cover. The fixed shaft and the central shaft hole, as well as the shaft head and the countersunk hole, are rotatably fitted and detachable.

3. A magnetically driven fan head with easily detachable and assembled fan blades as described in claim 2, characterized in that: The cylindrical fan blade seat is provided with a fixing post, and the fixing cover is provided with a connecting hole. The screw passes through the connecting hole and is screwed into the fixing post.

4. A magnetically driven fan head with easily detachable and assembled fan blades as described in claim 2, characterized in that: The silicone sleeve is provided with an annular groove; The fixing cover has a fixing cavity that extends into the fixing cover, and the bottom plate of the fixing cavity has a circular sleeve; The silicone sleeve is fitted inside the fixed cavity and extends outwards, with the annular sleeve and the annular groove engaging.

5. A magnetically driven fan head with easily detachable and assembled fan blades as described in claim 4, characterized in that: The end plate of the cylindrical fan blade seat is provided with a countersunk hole; The silicone sleeve is fitted at the end and extends into the countersunk hole.

6. A floor fan, characterized in that: Includes a base, a riser, a front shroud, a rear mesh cover, and a magnetically driven fan head with easily detachable fan blades as described in any one of claims 1-5; The rear grille and fan head housing are detachable, and the front grille and rear grille are detachable and can be fitted together.

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