Brushless motor and impeller thereof

A brushless motor and impeller technology, applied in the direction of electrical components, electromechanical devices, electric components, etc., to achieve the effect of improving work efficiency, improving air separation state, and reducing air loss

Pending Publication Date: 2021-11-26
东莞市驰驱电机有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The technical problem to be solved by the present invention is to avoid the deficiencies of the above-mentioned prior art and provide a brushless motor and its impeller, which have the advantages of reasonable structure, high speed, large suction, small volume, light weight, low noise and high efficiency.

Method used

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  • Brushless motor and impeller thereof
  • Brushless motor and impeller thereof
  • Brushless motor and impeller thereof

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Embodiment Construction

[0048] The present invention will be described in further detail below in conjunction with each accompanying drawing.

[0049] see Figure 1 to Figure 25 , a brushless motor, the brushless motor can be used in products such as vacuum cleaners, including a hollow housing 10 with openings at both ends, a stator assembly 20, a rotor assembly 30, a rear cover 40 with a rear bearing chamber 45, and a front bearing 51 and rear bearing 52; the stator assembly 20 includes a stator core 21 and a stator winding (not shown) arranged in each stator slot 211 of the stator core 21, for example, the applicant has a brushless motor using 3 The stator core 21 of a stator slot 211; the rotor assembly 30 includes a rotating shaft 31 and a permanent magnet part 32 fixed on the rotating shaft 31; the brushless motor also includes an air duct system component 60, and the air duct system component 60 includes a windshield 61 and an impeller 62 that are both open and hollow inside; the windshield 61...

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Abstract

The invention relates to a brushless motor and an impeller thereof. The brushless motorcomprises a shell, a stator assembly, a rotor assembly, a rear cover, a front bearing, a rear bearing and an air duct system component, wherein the shell is provided with a stator assembly fixing block, the air duct system component comprises a fan cover and the impeller; the fan cover comprises a rear end part provided with a front bearing fixing block, and a front end part; the front end of the stator assembly is fixed on a first central through hole of the stator assembly fixing block of the shell; the rear bearing is arranged in a rear bearing chamber of the rear cover; the rear cover is fixed at the rear end of the shell; the front bearing is arranged in a front bearing chamber of the front bearing fixing block of the fan cover; the rear end part of the fan cover is fixed at the front end of the shell; and the rear end of a rotating shaft of the rotor assembly is inserted from an inner hole of the rear bearing, the front end of the rotating shaft penetrates through an inner hole of the front bearing, and the impeller is fixed to the front end of the rotating shaft and located in a first circular-truncated-cone-shaped containing cavity in the front end of the fan cover. The brushless motor has the advantages of high rotating speed, large suction force, small size, light weight, low noise, high efficiency and the like.

Description

【Technical field】 [0001] The present invention relates to a motor, in particular to a small or micro motor, especially to a small or micro brushless motor, such as a brushless motor used in a vacuum cleaner. 【Background technique】 [0002] A kind of brushless motor of the prior art is for example used for the brushless motor on the vacuum cleaner, and what has is directly called the vacuum cleaner motor, has following deficiencies: [0003] 1. Due to the limitations of the structure of the air duct system of the vacuum cleaner motor in the prior art, the air intake mode of the vacuum cleaner in the prior art is to completely isolate the dust at the outer end of the air inlet of the motor, and the air inlet must be isolated with a very dense filter screen and filter element Dust will hinder the airflow and increase the suction force of the motor; [0004] 2. The vacuum cleaner motor in the prior art adopts a centrifugal impeller. The centrifugal impeller has a large volume, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02K7/14A47L9/28
CPCH02K7/14A47L9/28
Inventor 曹天佑罗斌
Owner 东莞市驰驱电机有限公司
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