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Electric blower and electric cleaner using same

A blower and motor technology, applied in the fields of electric vacuum cleaners and electric blowers, can solve problems such as narrowing of the flow path area, deviation of the direction of the rotating shaft, and reduction of air supply efficiency

Inactive Publication Date: 2012-11-28
PANASONIC INTPROP MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, there is a problem that the flow path area in the wind deflector 31 is narrowed, and the air blowing efficiency is lowered.
Therefore, there is the following problem: the first wind deflector 41a is pulled toward the suction side, and the mating surface of the first wind deflector 41a and the second wind deflector 41b deviates in the rotation axis direction

Method used

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  • Electric blower and electric cleaner using same
  • Electric blower and electric cleaner using same
  • Electric blower and electric cleaner using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0044] figure 1 It is a partial side sectional view of the electric blower according to Embodiment 1 of the present invention. A motor 102 is arranged in the electric blower 101 . The motor 102 is a type of motor called a brushed motor, and is composed of a rotor portion 103 , a stator portion 104 , a bracket 105 covering them, and a brush portion 106 . The brush portion 106 is provided on the lower side of the rotor portion 103 and the stator portion 104 . The rotor part 103 is provided with a rotating shaft 107, a commutator part 108, and coil parts 109a and 109b. Coil portions 111 a and 111 b are also provided on the stator portion 104 . Furthermore, the impeller 120 is connected to the rotating shaft 107 through a nut 112 . That is, the impeller 120 is driven to rotate by the motor 102 .

[0045] figure 2 It is a partial cross-sectional view of the impeller of the electric blower according to Embodiment 1 of the present invention. The impeller 120 is composed of a...

Embodiment approach 2

[0073] Figure 8 It is a perspective view of a wind deflector of an electric blower according to Embodiment 2 of the present invention, Figure 9 It is a rear perspective view of the first wind deflector of the electric blower. Only points different from Embodiment 1 will be described in Embodiment 2 of the present invention.

[0074] Embodiment 2 of the present invention differs from Embodiment 1 in the following points. On the mating surface 203a of the first wing portion 202a of the first wind deflector 201a, a stepped third step portion 204a is provided as an engaging portion. In addition, a stepped fourth step portion 204b is provided on the mating surface 203b of the second wing portion 202b of the second wind deflector 201b, and the fourth step portion 204b has a Figure 7 The first protrusion 145 is shown. The fourth stepped portion 204b is engaged with the third stepped portion 204a.

[0075] In addition, a stepped fifth step portion 205b having a second protrusi...

Embodiment approach 3

[0078] Figure 10 It is a perspective view of a wind deflector of an electric blower according to Embodiment 3 of the present invention, Figure 11 It is a rear perspective view of the first wind deflector of the electric blower. In Embodiment 3, only points different from Embodiment 1 will be described.

[0079] Embodiment 3 of the present invention differs from Embodiment 1 in the following points. The first wing portion 302a of the first wind deflector 301a and the second wing portion 302b of the second wind deflector 301b respectively have mating surfaces 303a, 303b. In addition, a third convex portion 305 and a fourth convex portion 308 are provided on the mating surface 303b. The third convex portion 305 is provided on the negative pressure surface 304 side on the outer peripheral side of the second wing portion 302b. In addition, the fourth convex portion 308 is provided on the pressure surface 307 side on the inner peripheral side of the second wing portion 302b. ...

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PUM

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Abstract

The impeller of an electric blower comprises a front face shroud, a rear face shroud, blades which consist of a metallic plate, and an inducer which has a hub and blades. The inducer is formed so as to be divided into two parts, that is, into a first inducer composed of a first hub and first blades, and into a second inducer composed of a second hub and second blades. The first inducer is disposed so that the edges of the first blades in the outer peripheral direction are disposed close to the front face shroud and so that the upper surface of the first hub is disposed so as to be in close proximity to and to be covered by the lower surface of a fastening body.

Description

technical field [0001] The present invention relates to an electric blower and an electric vacuum cleaner using the same. Background technique [0002] Figure 13 It is a partial sectional view of a conventional electric blower. The electric blower includes a motor 2 having a rotating shaft 1 , an impeller 4 , an air guide 5 , and a fan case 6 . Here, the impeller 4 is fixed to the rotary shaft 1 by the nut 3 , and the impeller 4 is driven to rotate by the motor 2 . The air guide 5 converts the energy of the flow velocity of the air discharged from the impeller 4 into the energy of pressure. The interior of the fan case 6 includes the impeller 4 and the air guide 5 . [0003] Figure 14 It is a partial cross-sectional view of an impeller of a conventional electric blower. The impeller 4 includes a rear cover 11 made of a metal plate, a front cover 12 , a plurality of blades 13 made of a metal plate, and an inducer 15 made of resin. Here, the front cover 12 is made of a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F04D29/62A47L9/00F04D29/28
CPCF04D29/444F04D25/0606F04D17/025A47L9/00F04D29/626A47L5/22F04D17/16F04D29/023F04D29/281F04D29/285
Inventor 中村一繁香山博之森下和久秀熊哲平西村刚
Owner PANASONIC INTPROP MANAGEMENT CO LTD
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