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Dust condensing passage, charging draft member, frictional charging resin pipe, electric vacuum cleaner

A technology of friction electrification and dust, applied in the direction of suction filter, external electrostatic separator, pipe, etc., can solve the problems of particle accumulation, larger occupied area, complex structure, etc., to increase the quality and eliminate the reduction of dust suction force (power) Effect

Inactive Publication Date: 2009-07-01
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, if one suction port is branched in the middle, accumulation of fine particles is likely to occur at the branched part
If this problem can be avoided by changing the number of suction ports to two, the distance between each suction port must be increased, which not only increases the occupied area, but also complicates the structure

Method used

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  • Dust condensing passage, charging draft member, frictional charging resin pipe, electric vacuum cleaner
  • Dust condensing passage, charging draft member, frictional charging resin pipe, electric vacuum cleaner
  • Dust condensing passage, charging draft member, frictional charging resin pipe, electric vacuum cleaner

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1-1-1

[0320] Figure 10 It is a figure which shows the whole electric vacuum cleaner provided with the dust aggregation passage of this invention as Embodiment 1-1-1 of this invention.

[0321] like Figure 10 As shown, the electric vacuum cleaner 6b is equipped with the extension pipe 502, the suction hose 504, and the connection part 505 as a flow path. The extension pipe 502, the suction hose 504, and the connection part 505 are sequentially connected. The electric vacuum cleaner 6b is provided with a frictional electrification path 161 having a length b at the downstream side of a distance c from the upstream end of the extension pipe 502 having a length a, and a connection portion 505 having a length d at the downstream side thereof. The collision-facilitating path 162 of . In the frictional electrification path 161, the first frictional electrification part for positively electrifying the dust and the second triboelectric electrification part for negatively electrifying the...

Embodiment approach 1-1-2

[0340] Figure 11 It is the figure which shows the whole electric vacuum cleaner equipped with the dust aggregation path of this invention as embodiment 1-1-2 of this invention, Figure 12 It is explanatory drawing of the structure of the main body of the electric vacuum cleaner of this invention.

[0341] Embodiment 1-1-2 differs from Embodiment 1-1-1 in that a friction electrification path is disposed inside the connecting pipe. The other parts of Embodiment 1-1-2 are the same as Embodiment 1-1-1.

[0342] like Figure 11 and Figure 12 As shown, in the electric vacuum cleaner 500, the suction port 501 is sequentially connected to the thin side 511 of the extension pipe, the thick side 512 of the extension pipe, the connecting pipe 503 with the handle 503a, and the freely bending suction hose 504, and connected to the The cleaner body 506 is connected. The vacuum cleaner main body 506 accommodates an electric blower 567, a dust collection unit 561, a dust collection box...

Embodiment approach 1-1

[0358] When the dust to be condensed is composed of a specific substance, it is a dust collecting device that sucks and collects the dust composed of a specific substance. It has: a suction port that sucks the dust and air together, and rides the dust on the air. The flow of the flow is the path through which the airflow is conveyed to the downstream side, the drive source communicating with the path to generate the airflow, the dust collection part arranged in the path to separate the air and dust and leave the dust, and the air separated from the dust to be discharged to the outside In the dust collecting device of the blowing outlet, a dust aggregation path for agglomerating dust is arranged on the upstream side of the dust collection part in the path, the upstream part of the dust aggregation path constitutes a frictional electrification path, and the downstream part constitutes a collision promotion path.

[0359] Moreover, the frictional electrification path as the upstre...

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Abstract

Provided is a dust flocculating duct which has a simple configuration and is capable of reducing the number of particulates by increasing the number of times when the particulates in dust collide with one another and by facilitating flocculation and of increasing an apparent diameter of each of the particulates. The dust flocculating duct comprises: an extension pipe (502), a suction hose (504), and a joining section (505) as, a frictional electrification passage part (161) disposed in the extension pipe and friction-electrifying the pieces of dust, and a collision promotion passage part (162) disposed in the joining section, causing the pieces of dust electrified by the frictional electrification passage part to collide with each other, and facilitating formation of dust masses (clusters). The frictional electrification passage part includes a first frictional electrification part made of a first material and a second frictional electrification part made of a second material. The collision promotion passage part is made of a third material. A contact potential difference of the first material is larger than a contact potential difference of the third material and the contact potential difference of the third material is larger than a contact potential difference of the second material.

Description

technical field [0001] The present invention relates to a dust aggregating channel for agglomerating dust by circulating a gas containing dust, a charging ventilating member for agglomerating particles passing through the interior, and a tube-shaped abraded material for contacting and charging the abraded material Triboelectrically charged resin pipes and electric vacuum cleaners. Background technique [0002] Conventionally, there is an extension pipe of a vacuum cleaner described in JP 2002-320578 A (Patent Document 1) as an example in which protrusions are provided on the inner wall surface of a pipe through which gas containing dust flows. Its purpose is to increase the speed of the air flow near the inner wall surface of the extension pipe by providing the guide vane as a speed-increasing mechanism near the inlet of the extension pipe connected to the vacuum cleaner body via a hose. [0003] In addition, Japanese Patent Application Laid-Open No. 9-131522 (Patent Docume...

Claims

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Application Information

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IPC IPC(8): A47L9/24A47L9/10B03C3/15B03C3/155B03C3/30
CPCF16L9/003B03C3/017A47L9/24B03C3/155B03C3/30
Inventor 加藤康昭大塚雅生友村佳伸北谷和也吉田长司大西祐二二宫光治立冈正雄
Owner SHARP KK
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