Rotor and rotating shaft connecting structure of smoke exhaust motor

Abstract

The invention relates to a smoke exhaust motor. A rotor and rotating shaft connecting structure of a smoke exhaust motor comprises a rotor and a motor shaft. The rotor comprises a rotor iron core and a plurality of magnetic steel sheets. The rotor iron core is provided with a plurality of magnetic steel sheet installing holes extending along an axial direction of the rotor. The magnetic steel sheets pass through the magnetic steel sheet installing holes in a one-to-one opposed manner. Two ends of the rotor iron core are provided with a plurality of jacks which extend along the axial direction of the rotor and distribute in a circumferential direction. The motor shaft comprises two half shafts. The half shaft is provided with a plurality of driving claws which pass through the jacks in a one-to-one corresponding manner. The rotor and the half shafts transmit torque just through the driving claws. The rotor and rotating shaft connecting structure is advantaged in that the magnetic steel sheets do not easily be impacted, and the rotor and the motor do not need large pressure extrusion and can be connected and separation is convenient. The rotor and rotating shaft connecting structure solves problems that magnetic steel sheets of a smoke exhaust motor are easily impacted and the rotating shafts need large pressure extrusion to be assembled together, and separation is difficult after the rotor and the rotating shaft are assembled together.

Description

technical field [0001] The invention relates to a range hood, in particular to a rotor shaft connection structure of a range hood motor. Background technique [0002] The rotor structure of the existing brushless DC motor for range hoods is an SPM structure, that is, the magnetic steel sheet is surface-mounted, and the surface-mounted type has the disadvantage that the magnetic steel sheet is easily broken by impact. In addition, the rotor and the motor shaft are designed through an interference fit and then squeezed by a press to achieve torque transmission. In this way, not only a large-tonnage press is required during the assembly process, but also the separation between the motor shaft and the rotor is laborious. . Contents of the invention [0003] The invention provides a rotor shaft connection structure of the range hood motor that is not easy to be hit by the magnetic steel sheet, and can be connected together without high pressure extrusion between the rotor and ...

AI Technical Summary

Problems solved by technology

[0003] The invention provides a rotor shaft connection structure of the range hood motor that is not easy to be hit by the magnetic steel sheet, and can be connected together without high pressure extrusion between the rotor and the motor shaft, and can be easily separated, which solves the problem of existing oil fume The magnetic steel sheet of the electromechanical machine is easy to be hit, and the rotating shaft needs to be squeezed under high pressure to be assembled together, and it is laborious to separate after assembly.

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