Motor fan blade, motor, air conditioner and household appliance
A technology of wind blades and wind discs, which is applied in the direction of machines/engines, electromechanical devices, electrical components, etc., and can solve the problems of increasing the difficulty of rotor calibration and balancing, the large workload of motor rotor calibration and balance, and the increase of motor rotor imbalance.
Active Publication Date: 2021-04-23
GREE ELECTRIC APPLIANCES INC OF ZHUHAI
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
The fan blade keyway 11 is used to fix the position of the fan blade, but the existence of the fan blade keyway 11 greatly increases the unbalance of the motor rotor, and increases the difficulty of rotor calibration and balance, which brings a lot of work to the motor rotor calibration. quantity
Method used
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Embodiment Construction
[0035] see Figure 2 to Figure 6 The motor fan blade 2 includes at least two fan-shaped inserts 21, and two adjacent inserts 21 are provided with interlocking concave-convex structures on their circumferential sides, and the concave-convex structures can make at least two inserts 21 form a circle. Disc-shaped, the inner arc ends 2111 of the plurality of inserts 21 can form a shaft through hole 22 , and a blade 217 protrudes from the first end surface of each insert 21 in the axial direction of the shaft through hole 22 . When there are two inserts 21 , each insert 21 is in the shape of a semicircular sector, and the semicircular sector-shaped insert 21 may be provided with one or more blades 217 . In addition, only one blade 217 may be provided on one insert 21. According to actual requirements, the number of blades 217 corresponds to the number of matching inserts 21. For example, if there are four blades 217, the number of inserts 21 is also four. .
[0036] The motor fan ...
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The invention provides a motor fan blade, a motor, an air conditioner and a household electrical appliance. The motor fan blade comprises at least two fan-disc-shaped inserts, concave-convex structures which are engaged with each other are arranged on the circumferential side faces of every two adjacent inserts, the concave-convex structures can enable the at least two inserts to form a disc shape, and shaft through holes are formed in the inner arc ends of the multiple inserts. A blade is arranged on the first end face, in the axial direction of the shaft through hole, of each insert in a protruding mode. The motor fan blade formed by meshing and splicing the plurality of inserts has deflection, the formed shaft through hole can be assembled with the motor rotating shaft in an interference fit manner and firmly assembled with the motor rotating shaft, the overall strength of the motor fan blade is ensured, and the deformation of the motor fan blade is reduced. The motor rotating shaft matched with the motor fan blades does not need to be provided with fan blade key grooves and clamp spring grooves, the machining procedures of the motor rotating shaft are reduced, the machining efficiency is improved, meanwhile, the unbalance amount of the rotor caused by the fan blade key grooves formed in the motor rotating shaft is reduced, and dynamic balance correction of the rotor is more convenient and faster.
Description
technical field [0001] The invention relates to the technical field of motors, in particular to a motor fan blade, a motor with the motor fan blade, an air conditioner with the motor and a household appliance with the motor. Background technique [0002] The motor fan blade is an important component of the motor. When the motor is running, the electric energy is converted into mechanical energy. At this time, the stator will generate a lot of heat. In order to avoid the motor from being burned due to untimely heat dissipation, it is necessary to install fan blades on the motor shaft so that during the operation of the motor, the fan blades The rotating shaft of the motor rotates to perform air cooling for the motor. [0003] see figure 1 , the existing motor shaft 1 needs to process the fan blade anti-retraction retaining ring groove 12 and the fan blade keyway 11, and at the same time install a retaining ring on the retaining ring groove 12 to fix the fan blade in the axi...
Claims
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Patent Timeline
Login to View More IPC IPC(8): H02K9/06H02K7/00F04D29/64F04D29/38F04D29/34
CPCF04D29/34F04D29/384F04D29/388F04D29/646H02K7/003H02K9/06
Inventor 韩允梅韦松卢素华刘思苑沈静文赖涛
Owner GREE ELECTRIC APPLIANCES INC OF ZHUHAI