JPS612851U

JPS612851U - vacuum cleaner

Info

Publication number: JPS612851U
Application number: JP8767884U
Authority: JP
Inventors: 賢二加藤; 克孝村田; 柳一安永
Original assignee: 松下電器産業株式会社
Priority date: 1984-06-12
Filing date: 1984-06-12
Publication date: 1986-01-09

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の電気掃除機の要部切欠断面図、２一図
は本考案の風量スセンサーの一部縦断面図、第３図は第
２図におけるｘ −ｘ’線断，面図第４図はその動作一
圧力の特性図、第５図は従来の風量センサーの一部縦断
面図、第６図は第５図におけるｙ−ｙ’線断面図、第７
図はその動作圧力の特性図、を示す。１４：電気掃除機本体、１５：ダストホックス、１６：
吸気孔、２０：電子制御部、２１：モータケース、２１
ａ，２１ｂ：排気孔、２１ａ’：風通路、２１’ｂ’：
リブ、２１ａ’−１：天井板、２ｌａ’−２：ゴムシー
トの底板、２１ａ’−３：スリット、２２：電動送風機
、２６：風受板、２ｉ：可変抵抗器，２７ａ：可変抵抗
器の動作板、２８：ばね、２９：底板のゴムシート。Fig. 1 is a cutaway sectional view of essential parts of the vacuum cleaner of the present invention, Fig. 21 is a partial vertical sectional view of the airflow sensor of the present invention, and Fig. 3 is a cross-sectional view taken along the line x-x' in Fig. 2. Figure 4 is a characteristic diagram of its operation and pressure, Figure 5 is a partial longitudinal cross-sectional view of a conventional airflow sensor, Figure 6 is a cross-sectional view taken along the line y-y' in Figure 5, and Figure 7 is a cross-sectional view of a conventional air volume sensor.
The figure shows a characteristic diagram of its operating pressure. 14: Vacuum cleaner body, 15: Dust hox, 16:
Intake hole, 20: Electronic control unit, 21: Motor case, 21
a, 21b: Exhaust hole, 21a': Air passage, 21'b':
Rib, 21a'-1: Ceiling plate, 2la'-2: Rubber sheet bottom plate, 21a'-3: Slit, 22: Electric blower, 26: Wind receiving plate, 2i: Variable resistor, 27a: Variable resistor Operating plate, 28: Spring, 29: Rubber sheet of bottom plate.

Claims

[Scope of Claim for Utility Model Registration] Exhaust holes are provided on both sides of the rear lower periphery of the monitor case in which the electric blower is sealed, and an air volume sensor is provided in one of the exhaust holes (hereinafter referred to as the sensor exhaust hole). A conversion unit is provided for converting a change in the amount of displacement of the detected amount into an electrical change, and the operation of the conversion unit operates a control unit to control the electric blower. , for the sensor υ [with the periphery of the air hole outward, only the ceiling plate is protruded in a rectangular tube shape that slopes inward from the tip, and an integral ventilation passage is provided, and the ventilation passage is immediately before the exhaust hole for the sensor. A wind receiving plate is provided that closes the exhaust hole for the sensor when the exhaust pressure is below a certain output, an operating board that protrudes downward is fixed to the wind receiving plate, and the bottom of the ventilation passage is made of an elastic material. At the same time, a slit is provided, and a ventilation path is configured in the exhaust cross-sectional area so that the operating plate of the wind receiving plate can be moved along the slit, and the moving distance is proportional to the output of the electric blower, and the control unit is controlled by the air volume sensor. An electric vacuum cleaner that operates and controls an electric blower.