Electric fan swing angle adjusting sampling device

Abstract

The invention relates to an electric fan swing angle adjusting sampling device. The electric fan swing angle adjusting sampling device comprises an alternating current motor, a variable angle gearboxprovided with a planetary gear crank mechanism and a magnetic attraction device, wherein the magnetic attraction device is connected with an angle adjusting control chip through a wire, a rotor markeris arranged at the end of a rotor shaft, extending out of a motor shell, of the alternating current motor, a rotor position sensing signal acquisition device is arranged in a corresponding gap, corresponding to the rotor marker, in the variable angle gearbox, and the rotor position sensing signal acquisition device is connected with the angle adjusting control chip through a wire. A non-contact electric signal sampling device composed of the rotor marker and the rotor position sensing signal acquisition device is arranged outside the shell of the alternating current motor, improves the production efficiency and the yield in the production, reduces the cost and is suitable for being used in the electric fan swing angle adjusting device using the alternating current motor.

Description

technical field [0001] The invention relates to an electric fan with swing angle adjustment, in particular to a sampling device with swing angle adjustment for the electric fan. Background technique [0002] In the prior art, there is a technical solution for an electric fan swing angle adjustment device (Chinese Patent Application No. 201710491195.8), which shows an electric fan swing angle adjustment device using an AC motor and a corresponding magnetic-sensitive electrical signal sampling device. Refer to the original text of the manual from page 7, line 21 to page 8, line 8, combined with the description in Figure 5 and Figure 6, we know that it includes an AC motor, which consists of a worm-worm gear-worm shaft-big gear power transmission mechanism, a planetary crank A variable-angle gearbox composed of a mechanism and a large gear-pawl clutch device. The casing of the variable-angle gearbox is equipped with a magnetic attraction device. The magnetic attraction device i...

AI Technical Summary

Problems solved by technology

[0002] In the prior art, there is a technical solution for an electric fan swing angle adjustment device (Chinese Patent Application No. 201710491195.8), which shows an electric fan swing angle adjustment device using an AC motor and a corresponding magnetic-sensitive electrical signal sampling device. Refer to the original text of the manual from page 7, line 21 to page 8, line 8, combined with the description in Figure 5 and Figure 6, we know that it includes an AC motor, which consists of a worm-worm gear-worm shaft-big gear power transmission mechanism, a planetary crank A variable-angle gearbox composed of a mechanism and a large gear-pawl clutch device. The casing of the variable-angle gearbox is equipped with a magnetic attraction device. The magnetic attraction device is connected to the angle adjustment control chip through a wire. A bracket is placed on the rotor worm of the AC motor. Built-in permanent magnet, the permanent magnet becomes the rotor marker that rotates with the rotor, there is a Hall sensor in the corresponding gap of the permanent magnet, the Hall sensor is fixed in the motor housing, and the Hall sensor is connected to the angle adjustment control chip through a wire , so that during the angle adjustment process, when the Hall sensor monitors the operation of the permanent magnet of the AC motor rotor, it can obtain the sampled electrical signal data corresponding to the orbit of the planetary gear crank rotation, and feed back to the angle adjustment control chip in real time through the wire to realize Swing angle adjustment, this electric fan swing angle adjustment device equipped with a magneto-sensitive electrical signal sampling device has the advantages of no contact wear, long life, and high resolution. However, since the permanent magnet and the Hall sensor are fixed in the In the housing of the AC motor, the Hall sensor is a low-voltage weak-current component, and the AC motor is a high-voltage component, forming a mixed assembly of high and low voltage components. During the installation and high-voltage testing in the motor workshop, the production process is complicated, the assembly is slow, and there are many detection breakdowns. It is difficult to disassemble the motor head for repair and the product defect rate is high. When it comes to the final assembly of the electric fan assembly line, the production assembly will be slow again, the breakdown will be high, the disassembly of the motor head will be difficult for repair, and the product defect rate will be high. Obviously, this kind of The electrical signal sampling device with mixed high and low voltage components installed in the AC motor shell needs to be improved

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