Electric fan adopting magnetic coupler

Abstract

The invention provides an electric fan adopting a magnetic coupler, and particularly relates to the technical field of household appliances. An electric fan adopting a magnetic coupler comprises a base and a stand column fixed to the top of the base. The stand column is rotationally connected with the main body shell through the connecting base. A fan cover shell is fixed at the top of the main body shell; a driving motor and fan blades are arranged in the fan cover shell; and an output shaft of the driving motor is connected with a rotating shaft of the fan blades through a magnetic coupler. The device is simple in structure and convenient to disassemble and assemble; according to the magnetic field action principle, the fan blades which are directly fixed on the motor shaft originally are independent, so that potential safety hazards caused by the fact that foreign matters touch the fan blades and loss of the motor are avoided.

Description

Technical Field

[0001] The invention patent relates to the technical field of household appliances, and specifically to an electric fan using a magnetic coupler. Background Art

[0002] At present, the blades of most electric fans are directly fixed on the motor shaft. If this traditional fixing method uses external force to interfere with the working blades, the blades will not stop immediately because they are connected to the motor shaft and will encounter relatively large resistance, which will cause safety hazards when foreign objects touch the fan blades and may even cause certain losses to the motor.

[0003] Therefore, in order to solve the above problems, the present invention provides an electric fan using a magnetic coupler. Summary of the invention

[0004] In order to overcome the above-mentioned shortcomings of the prior art and solve the problem that the connection between the traditional fan blades and the motor shaft is prone to cause safety hazards when foreign objects touch the fan blades, and even cause certain losses to the motor, the present invention provides an electric fan using a magnetic coupling, and the specific technical solution is as follows:

[0005] An electric fan using a magnetic coupler comprises a base and a column fixed on the top of the base; the column is rotatably connected to a main body shell through a connecting seat; a wind shield shell is fixed on the top of the main body shell; a driving motor and fan blades are arranged in the wind shield shell; the output shaft of the driving motor is connected to the rotating shaft of the fan blade through a magnetic coupler.

[0006] Preferably, a slide rail matching the top of the connecting seat is provided at the bottom of the main body shell, and the main body shell is rotatably connected to the connecting seat via the slide rail.

[0007] Preferably, a support rod is arranged in the connecting seat, and a base is arranged on the top of the support rod.

[0008] Preferably, an electric control board, a synchronous motor and an atmosphere light are provided in the inner cavity of the main shell; a touch screen is installed at the front end of the main shell; the synchronous motor is fixed on the base; the output shaft sleeve of the synchronous motor is provided with a first gear; the main shell is provided with a second gear at a position corresponding to the first gear; the first gear is meshed with the second gear to realize the left and right rotation of the main shell on the connecting seat.

[0009] Preferably, the magnetic coupler includes a main rotor and a secondary rotor; the main rotor is sleeved on the output shaft of the driving motor; the secondary rotor is sleeved on the fan blade shaft; the main rotor and the secondary rotor are arranged opposite to each other with a gap in between; the secondary rotor rotates as the main rotor rotates through the magnetic field.

[0010] Also preferably, the drive motor, synchronous motor, ambient light and touch screen are all electrically connected to the electric control panel.

[0011] Also preferably, the left-right rotation angle of the main body shell is 70 degrees.

[0012] Further preferably, a light-transmitting plate is provided at a position at the bottom of the touch screen corresponding to the ambient light.

[0013] Still further preferably, the connecting seat is threadedly connected to the column.

[0014] More preferably, a non-slip pad is provided at the bottom of the base.

[0015] The beneficial effects of the present invention are:

[0016] The present invention makes the fan blades that are traditionally directly fixed on the motor shaft independent, and connects them indirectly through a magnetic coupler, utilizing the principle of magnetic field action to drive the motor output shaft to rotate and drive the fan blade shaft to rotate; when foreign objects invade, the fan blades can stop quickly without causing loss to the motor or reducing its lifespan, thus providing higher safety. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting the specification of this application are used to provide further understanding of this application and do not constitute improper limitations on this application.

[0018] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0019] Figure 2 It is a cross-sectional view of the AA portion of the present invention;

[0020] Figure 3 for Figure 2 A partial enlarged view of part B;

[0021] In the figure, 1-fan hood shell; 2-main body shell; 21-synchronous motor; 22-light-transmitting plate; 3-connecting seat; 4-driving motor; 41-output shaft; 42-main rotor; 5-fan blades; 51-rotating shaft; 52-auxiliary rotor; 6-column; 7-base. DETAILED DESCRIPTION

[0022] The specific implementation of an electric fan using a magnetic coupling provided by the present invention is further described in conjunction with the accompanying drawings and embodiments.

[0023] like Figure 1As shown, an electric fan using a magnetic coupling includes a base 7 and a column 6 fixed on the top of the base 7; the column 6 is threadedly connected to a connecting seat 3; the column 6 is rotatably connected to a main housing 2 through the connecting seat 3, so that the electric fan can shake left and right. A fan housing 1 is fixed on the top of the main housing 2; wherein a driving motor 4 and a fan blade 5 are arranged in the fan housing 1; the output shaft 41 of the driving motor 4 is connected to the rotating shaft 51 of the fan blade 5 through a magnetic coupling.

[0024] Preferably, a slide rail matching the top of the connecting seat 3 is provided at the bottom of the main housing 2 , and the main housing 2 is rotatably connected to the connecting seat 3 via the slide rail.

[0025] Preferably, a support rod is vertically arranged in the connecting seat 3, and a base for mounting the motor is arranged on the top of the support rod.

[0026] like Figure 2 As shown, the inner cavity of the main housing 2 is provided with an electric control panel, a synchronous motor 21 and an atmosphere lamp; a touch screen for controlling the operation of the electric fan is installed at the front end of the main housing 2; the synchronous motor 21 is fixed on a base fixed to the connecting seat 3; wherein, the output shaft sleeve of the synchronous motor 21 is provided with a first gear; the main housing 2 is provided with a second gear at a position corresponding to the first gear; the first gear is meshed with the second gear, and the forward and reverse rotation of the synchronous motor 21 is controlled to realize the left and right rotation of the main housing 2 on the connecting seat 3. Preferably, the left and right rotation angle range of the main housing 2 is 70 degrees; a light-transmitting plate 22 is provided at the bottom of the touch screen corresponding to the position of the atmosphere lamp, which can bring a better user experience to the user.

[0027] like Figure 3 As shown, the magnetic coupling includes a main rotor 42 and a sub-rotor 52; the main rotor 42 is sleeved on the output shaft 41 of the drive motor 4; the sub-rotor 52 is sleeved on the rotating shaft 51 of the fan blade 5; the main rotor 42 and the sub-rotor 52 are arranged opposite to each other, and there is a gap in the middle; the sub-rotor 52 rotates as the main rotor 42 rotates through the magnetic field, thereby realizing an indirect connection between the fan blade 5 and the drive motor 4, so that when the fan blade 5 is hindered by external force, the fan blade 5 will stop rotating, but will not affect the continued rotation of the drive motor 4, will not cause loss to the drive motor 4, and also solves the safety problem of damage to foreign objects caused by the rotation of the fan blade 5.

[0028] Also preferably, the drive motor 4, the synchronous motor 21, the ambient light and the touch screen are all electrically connected to the electric control panel.

[0029] Further preferably, in order to increase the friction between the electric fan base 7 and the ground and improve the overall stability, an anti-slip pad is also provided at the bottom of the base 7 .

[0030] The present invention makes the fan blades that are traditionally directly fixed on the motor shaft independent, and connects them indirectly through a magnetic coupler, utilizing the principle of magnetic field action to drive the motor output shaft to rotate and drive the fan blade shaft to rotate; when foreign objects invade, the fan blades can stop quickly without causing loss to the motor or reducing its lifespan, thus providing higher safety.

[0031] In the present invention, the orientation or position relationship indicated by terms such as "upper", "lower", "bottom", "top", etc. is based on the orientation or position relationship shown in the accompanying drawings. They are relational words determined only for the convenience of describing the structural relationship of the various parts or elements of the present invention. They do not specifically refer to any part or element in the present invention and cannot be understood as limitations on the present invention. Terms such as "connected" and "connected" should be understood in a broad sense, indicating that it can be fixedly connected, integrally connected or detachably connected; it can be directly connected or indirectly connected through an intermediate medium. For relevant scientific research or technical personnel in this field, the specific meanings of the above terms in the present invention can be determined according to specific circumstances, and they cannot be understood as limitations on the present invention.

[0032] Of course, the above description is not a limitation of the present invention, and the present invention is not limited to the above examples. Changes, modifications, additions or substitutions made by technicians in this technical field within the essential scope of the present invention should also fall within the protection scope of the present invention.

Claims

1. An electric fan using a magnetic coupler, comprising a base and a column fixed on the top of the base; characterized in that: The column is rotatably connected to the main shell through a connecting seat; a wind shield shell is fixed on the top of the main shell; a driving motor and fan blades are arranged in the wind shield shell; the output shaft of the driving motor is connected to the rotating shaft of the fan blade through a magnetic coupler.

2. The electric fan using a magnetic coupling according to claim 1, characterized in that: The bottom of the main shell is provided with a slide rail matching the top of the connecting seat, and the main shell is rotatably connected with the connecting seat through the slide rail.

3. The electric fan using a magnetic coupling according to claim 2, characterized in that: A support rod is arranged in the connecting seat, and a base is arranged on the top of the support rod.

4. The electric fan using a magnetic coupling according to claim 3, characterized in that: The inner cavity of the main shell is provided with an electric control board, a synchronous motor and an atmosphere light; a touch screen is installed at the front end of the main shell; the synchronous motor is fixed on the base; the output shaft sleeve of the synchronous motor is provided with a first gear; the main shell is provided with a second gear at a position corresponding to the first gear; the first gear is meshed with the second gear to realize the left and right rotation of the main shell on the connecting seat.

5. The electric fan using a magnetic coupling according to claim 1, characterized in that: The magnetic coupler comprises a main rotor and a secondary rotor; the main rotor is sleeved on the output shaft of the driving motor; the secondary rotor is sleeved on the fan blade shaft; the main rotor and the secondary rotor are arranged opposite to each other with a gap in between; The auxiliary rotor rotates as the main rotor rotates through the magnetic field.

6. The electric fan using a magnetic coupling according to claim 4, characterized in that: The driving motor, synchronous motor, ambient light and touch screen are all electrically connected to the electric control panel.

7. The electric fan using a magnetic coupling according to claim 4, characterized in that: The main body shell can rotate left and right by 70 degrees.

8. The electric fan using a magnetic coupling according to claim 4, characterized in that: A light-transmitting plate is arranged at the bottom of the touch screen at a position corresponding to the atmosphere light.

9. The electric fan using a magnetic coupling according to claim 1, characterized in that: The connecting seat is threadedly connected to the column.

10. The electric fan using a magnetic coupling according to claim 1, characterized in that: The bottom of the base is provided with an anti-skid pad.

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