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Electric blower and electric dust collector including the same

An electric blower and guide technology, applied in the direction of vacuum cleaners, machines/engines, liquid fuel engines, etc., can solve problems such as the difficulty of the impeller 132

Inactive Publication Date: 2010-10-20
PANASONIC CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, it is very difficult to manufacture the impeller 132 capable of reducing air flow loss at low cost without gaps in the joint portion of the blade 135.

Method used

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  • Electric blower and electric dust collector including the same
  • Electric blower and electric dust collector including the same
  • Electric blower and electric dust collector including the same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0042] figure 1 It is a partial cross-sectional view of the electric blower according to Embodiment 1 of the present invention. figure 2 It is a perspective view with a part of the impeller of the electric blower cut away. Such as figure 1 As shown, the electric blower 1 has: the cover body 11 and the bracket 12 constituting the motor 31 ; and the housing 40 constituting the fan unit 45 . The housing 40 is attached to the bracket 12 in an airtight manner.

[0043] The motor 31 has a stator 2 and a rotor 5 . The stator 2 is configured by winding a field winding 4 around a magnetic core 3 . The stator 2 is attached to the inner surface of the casing 11 . The rotor 5 is configured by winding an armature winding 8 around an armature core 7 provided on a shaft 6 . The rotor 5 is rotatably attached to a cover 11 and a bracket 12 via bearings 10 provided at both ends of the shaft 6 . In addition, a commutator 9 is provided coaxially with the shaft 6 on the cover 11 side of ...

Embodiment approach 2

[0058] Image 6 It is a perspective view of the blade body of the impeller according to Embodiment 2 of the present invention. Figure 7 It is a perspective view of the blade of the impeller of this embodiment. In addition, the same code|symbol is attached|subjected to the same component as Embodiment 1, and detailed description is abbreviate|omitted.

[0059] Such as Image 6 with Figure 7 As shown, the blade 60 of this embodiment has a blade body 65 made of a metal plate, and a resin body 62 integrally formed on the outside of the blade body 65 . The blade body 65 has a plurality of openings 66 penetrating in the thickness direction. When the resin body 62 is integrally molded to the blade body 65 , the opening 66 is filled with the resin body 62 .

[0060] Thereby, the adhesion strength of the resin body 62 to the blade body 65 increases. That is, the resin body 62 is hard to peel off from the blade body 65 . Furthermore, the blade body 65 can be reduced in weight b...

Embodiment approach 3

[0062] Figure 8 It is a perspective view of the blade of the impeller in Embodiment 3 of this invention. In addition, the same reference numerals are assigned to the same components as those in Embodiment 1, and detailed description thereof will be omitted.

[0063] Such as Figure 8 As shown, the blade 70 of this embodiment has a blade body 61 and a resin body 72 integrally formed on the outside of the blade body 61 . In addition, as indicated by R in the figure, the cross section of the end portion of the resin body 72 has an arc shape. Figure 9A is a cross-sectional view of the riveted part of the impeller 55 . Figure 9B It is a sectional view other than the caulking part of the impeller 55 . The arc-shaped ends of the resin body 72 are in contact with the front guard 34 and the rear guard 33 . The arc shape of the resin body 72 is in smooth contact with the inner surfaces of the front shield 34 and the rear shield 33 .

[0064] When the electric blower 1 is energi...

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Abstract

The present invention provides an electric blower and an electric dust collector including the same. An impeller of the electric blower is provided with blades arranged between a front protective cover and a back protective cover. Each blade is provided with a blade body made of metal and connected with the front and back protective covers through pins; and a resin body integrated on the outer circumference of the blade body. By means of said structure, it is possible to prevent air from leaking from the connection part with the front and back protective cover so as to reduce air flow loss and improve the efficiency of the electric blower.

Description

technical field [0001] The present invention relates to an electric vacuum cleaner for sucking dust and the like, and an electric blower used in the electric vacuum cleaner. Background technique [0002] Electric vacuum cleaners using an electric blower use a high-power electric blower in order to effectively clean carpets, etc. As an electric blower used in the conventional electric vacuum cleaner, there exists the electric blower described in Japanese Patent No. JP3246039 (patent document 1), for example. In addition, as the shape of the impeller used in the conventional electric blower, there are, for example, Figure 18A ~ Figure 20B structure shown. Figure 18A It is a plan view of an impeller of the prior art. Figure 18B It is a sectional view of an impeller of the prior art. Figure 19 It is a perspective view of blades constituting the impeller. Figure 20A A sectional view of the riveted part of the impeller. Figure 20B This is a cross-sectional view of the i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A47L9/00F04D29/28F04D29/30F04D17/10
CPCF04D29/281F04D29/30
Inventor 村田吉隆
Owner PANASONIC CORP
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