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Electric fan and vacuum cleaner therewith

An electric fan and electric motor technology, applied in the field of vacuum cleaners and electric fans, can solve the problems such as the specific area and shape of the opening part 7 and the relative positional relationship of the air guide member 5 are not explained in detail, and achieve the effect of high blowing efficiency

Inactive Publication Date: 2008-05-28
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In the above-mentioned conventional structure, although it is a known technology to improve the blowing efficiency of the electric fan 1 by discharging a part of the suction airflow from the periphery of the fan cover 6, the specific area, shape, and relative to the air of the opening portion 7 The relative positional relationship of the guide part 5, etc. has not been clarified in detail

Method used

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  • Electric fan and vacuum cleaner therewith
  • Electric fan and vacuum cleaner therewith
  • Electric fan and vacuum cleaner therewith

Examples

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Embodiment Construction

[0030] Embodiments of the present invention will be specifically described below with reference to the accompanying drawings. It should be pointed out that such examples do not limit the present invention.

[0031] figure 1 It is a side sectional view of an electric fan in an embodiment of the present invention, figure 2 A bottom sectional view of the air guide components and fan guard is shown in , image 3 is the bottom sectional view of the electric fan, Figure 4 It is a longitudinal sectional view of the electric vacuum cleaner. Here, the same components as those in the above-mentioned prior art are given the same symbols, and detailed description thereof will be omitted.

[0032] Such as figure 1 As shown in, the electric blower 1 includes: the impeller 4 installed (fixed) on the rotating shaft 3 of the electric machine 2; the air guide member 5 arranged to face the outer edge of the impeller 4; and the The impeller 4 and the air guide member 5 surround a housin...

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PUM

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Abstract

The object of this invention is to provide an electric blower enabling an increase in blowing efficiency and a vacuum cleaner using the electric blower. This electric blower comprises an air guide 5 installed around the periphery of an impeller and having a plurality of stationary blades 19 and a shell 6 covering the air guide. Opening parts 7 discharging a part of the air passed through the air guide are formed around the outer shell, and at least a part of the outer peripheral end parts of a plurality of stationary blades is disposed oppositely to the opening parts. Since air flows discharged from the same openings are collided with each other, noise is canceled between the adjacent openings to reduce the noise.

Description

technical field [0001] The invention relates to an electric blower and a vacuum cleaner using the electric blower. Background technique [0002] The structure of the existing electric fan is as follows: Figure 5 shown in . [0003] Figure 5 The existing electric fan 1 shown in is provided with: the impeller 4 installed (fixed) on the rotating shaft 3 of the electric motor 2, the air guide member 5 that is arranged to be opposite to the outer edge of the impeller 4, and the The impeller 4 and the air guide part 5 surround a fan housing 6 from the outside. The fan cover 6 is airtightly installed around the motor 2, has an air suction portion 6a at its center, and has a plurality of openings 7 around it. [0004] In addition, the bracket 8 of the motor 2 is provided with an exhaust opening 9 through which the air sucked by the impeller 4 is exhausted to the outside. At the same time, the armature core 11 formed by laminating the commutator 10 and silicon steel sheets is pr...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/66F04D25/06A47L5/12A47L9/00F04D29/42F04D29/44
Inventor 德田刚西村刚北村秀典仲本博司
Owner PANASONIC CORP
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