Dry-wet dual-purpose direct-current motor assembly

Abstract

The invention discloses a dry-wet dual-purpose direct-current motor assembly, which comprises motor fan blades, an air diffuser, a motor main body and a motor air passage, wherein the front end of themotor main body is mounted in the air diffuser; the motor fan blades are arranged at the front end of the air diffuser and are connected with the motor main body; the motor air passage is mounted atthe rear end of the air diffuser; the rear end of the motor main body is installed on the motor air passage; a cooling air passage is arranged in the air diffuser; a cooling air passage and a workingair hole are arranged on the motor air passage; the air diffuser is communicated with the motor fan blades through the cooling air passage; and the air diffuser is communicated with the cooling air passage on the motor air passage through the cooling air passage. The direct-current motor assembly has the beneficial effects that secondary heat dissipation of the motor body is realized, the heat dissipation effect of the motor body is improved, the motor body is not influenced by a wet environment, the sealing effect is good, the safety and reliability are high, the firmness degree is high, thewind speed is uniform, the disassembly and assembly are convenient, and the positioning reliability is high.

Description

technical field [0001] The invention relates to the technical field related to electric motors, in particular to a wet and dry DC motor assembly. Background technique [0002] The vacuum cleaner motor is the heart of the vacuum cleaner. The main types of vacuum cleaner motors are: dry vacuum cleaner motor, wet and dry vacuum cleaner motor. The vacuum cleaner motor is composed of two parts: the motor part and the fan part. Since the vacuum cleaner motor has high requirements on the speed, generally at 20,000-30,000 revolutions per minute, the motor is mainly a series-excited motor, also known as a series-excited motor. [0003] The series excitation motor is mainly composed of a stator, a rotor, front and rear end covers (covers) and cooling fan blades. The stator is composed of the stator core and the winding on the pole piece, its function is to generate excitation flux, magnetic conduction and support the front and rear covers; the rotor is composed of the rotor core, sha...

AI Technical Summary

Problems solved by technology

[0004] Existing wet and dry vacuum cleaner motors are often designed with two fans for heat dissipation operation, which increases the power loss of the motor, and the design of the single fan does not design the air duct on the motor, resulting in its dry and wet two. Poor cooling effect when used

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