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Alternating-current and direct-current dual-purpose brushless motor

An AC and DC dual-purpose, motor technology, applied in the direction of magnetic circuit shape/style/structure, electrical components, electromechanical devices, etc., can solve the problem of the length limit of the power lead, and achieve the effect of convenient use

Pending Publication Date: 2020-07-31
CINDERSON TECH (SUZHOU) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there is also the problem that the length of the power lead is limited, and it is often necessary to configure an additional long-distance plug-in strip

Method used

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  • Alternating-current and direct-current dual-purpose brushless motor
  • Alternating-current and direct-current dual-purpose brushless motor
  • Alternating-current and direct-current dual-purpose brushless motor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0034] Below in conjunction with specific embodiment, content of the present invention is described in further detail:

[0035] In order to achieve the purpose of the present invention, a dual-purpose brushless motor for AC and DC includes: a rotor, including a rotor core 5 and a stepped shaft 13 arranged coaxially, the outer contour of the rotor core 5 is cylindrical, and the rotor core 5 There are several sintered magnetic pieces 6 in the inner annular array; the stator is arranged on the outer ring of the rotor, and the stator includes the stator core 2 and the winding wire package 4, and the stator core 2 and the winding wire package 4 are in common contact with the stator skeleton 3. Six winding wire packages 4 are arranged in an annular array around the step shaft 13, each winding wire package 4 is a closed loop, and the stator frame 3 is equipped with convex teeth 14 assembled with the winding wire package 4; It includes three high-voltage windings 7 and three low-volta...

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PUM

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Abstract

The invention discloses an alternating-current and direct-current dual-purpose brushless motor which comprises a rotor. The rotor comprises a rotor iron core and a step shaft which are coaxially arranged; the outer contour of the rotor iron core is cylindrical, and a plurality of sintered magnetic sheets are annularly arrayed in the rotor iron core; the brushless motor further comprises a stator which is arranged on the outer ring of the rotor; the stator comprises a stator iron core and winding coils; a stator framework is in common contact between the stator core and the winding coils; the six winding coils are wound around a step shaft in an annular array; each winding coil is a closed loop; convex teeth matching the winding coils in a packaging mode are arranged on the stator framework; each winding coil comprises three high-voltage windings and three low-voltage windings, and the high-voltage windings and the low-voltage windings are alternately arranged at intervals, and alternating current and direct current pass through the high-voltage windings and the low-voltage windings respectively. According to the invention, the low-voltage windings and the high-voltage windings arematched to realize rotation under the condition of alternating current or direct current, the universality is wide, and the performance of the motor is improved.

Description

technical field [0001] The invention relates to the field of electric motors, in particular to an AC and DC dual-purpose brushless motor. Background technique [0002] Existing vacuum cleaners and electric tools are used by customers either by plugging in an AC power supply or using their own batteries for work. [0003] Products using batteries will face problems such as battery life, inconvenient charging, and reduced performance. Due to the continuous discharge of the battery during use, the battery voltage will gradually decrease, which will cause the motor output and speed to gradually decrease accordingly. From the customer's experience, the performance is that the suction of the vacuum cleaner gradually decreases, the torque of the electric tool decreases, and the speed becomes lower and lower until the motor stops rotating. At the same time, in the battery-powered mode, the battery will run out of power in the middle of the use, and the use process has to be tempor...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K29/00H02K1/18H02K3/04H02K3/28H02K1/14H02K11/33
CPCH02K1/146H02K1/185H02K3/04H02K3/28H02K11/33H02K29/00
Inventor 朱云舫
Owner CINDERSON TECH (SUZHOU) CO LTD