JPH04129521A - Electrical cleaner - Google Patents

Abstract

PURPOSE:To drive an electrical cleaner with the optimum operation pattern corresponding to the clogging state among the control patterns which are previously memorized according to the clogging states by carrying out the constant speed operation with a prescribed number of revolution on start, comparing the information which detects the clogging state with a threshold value which is previously set, and determining the clogging state at present. CONSTITUTION:The clogging state of a dust collection part 4 is detected by a detecting means 6, and the detection quantity is taken into a calculation processor 7. The clogging state is judged, and an instruction is inputted into an electric power controller 8 so that the control pattern corresponding to the clogging state is generated. The electric power controller controls a motor- driven blower 2 according to the instruction.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Field of Application] The present invention relates to a method for controlling a vacuum cleaner, and more particularly to a method for controlling the operation of a vacuum cleaner depending on the clogging state of the vacuum cleaner.

[Conventional technology]

Regarding conventional vacuum cleaners, Japanese Patent Application Laid-Open No. 61-28083
As disclosed in Japanese Patent No. 1, it is known to control the output of an electric blower according to a detected value of a pressure sensor within the main body.

[Problem to be solved by the invention]

The above conventional technology does not take into consideration the control method according to the clogging state of the vacuum cleaner body, but only increases the direction of the electric blower as the pressure inside the vacuum cleaner body increases. Met.

The present invention operates a vacuum cleaner at a predetermined rotation speed when starting up, determines the current clogging state from the value detected by the detection means at that time, and determines the optimum power according to the state of clogging. The purpose is to operate a vacuum cleaner with the following operating pattern.

[Means to solve the problem]

In order to achieve the above purpose, when starting the vacuum cleaner,
The electric blower is rotated at a constant speed at a certain predetermined number of rotations, and the information obtained from the detection means for checking the clogging state provided in the vacuum cleaner is set at a preset threshold. The current clogging condition is determined by comparison with the clogging condition, and operation is performed according to a predetermined control pattern depending on the clogging condition.

[Effect]

The threshold value for determining the clogging state is set according to the clogging state when the electric blower is operated at a certain predetermined rotation speed and at a constant speed when starting the vacuum cleaner. A clogging state can be determined without malfunction.6 [Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows the overall structure of a vacuum cleaner for implementing the present invention. Reference numeral 1 denotes a vacuum cleaner body, which detects the clogging state of the dust collection section 4 by means of a detection means 6;
The detected amount is taken into the arithmetic processing unit 7. Here, the state of clogging is determined, and a command is issued to the power control device 8 to set a control pattern according to the state of clogging. The power control device controls the electric blower 2 according to commands.

FIG. 2 shows the relationship between the air volume Q and the static pressure H when the present invention is implemented in a vacuum cleaner having the overall configuration shown in FIG. In this embodiment, three types of control patterns are set depending on the clogging state, and a pressure sensor (or air volume sensor) is used as a means for detecting the clogging/clogging state. When the vacuum cleaner is started, the electric blower #! &2 is the rotation speed N
Operates at a constant speed at the minimum rotational speed of ``N a i ''.

If you can confirm that the constant speed operation has started, check the current dust collection section 4.
The static pressure (or air volume) is the threshold value H1 (or Qt),
Compared to Hz (or QZ), the state of clogging is (a), (
It is determined whether the region state is in b) or (c).

If the clogging state is (a), it is determined that the clogging is not severe, and a command is sent to the electric blower 2 to perform control as in pattern A. If the clogging condition is (b), it is determined that the electric blower 2 is clogged, and the rotation speed Nz of the electric blower 2 is set to a constant speed at the maximum rotation speed of N Z = N wa a x (referred to as operation pattern B). ) and commands are given to drive at maximum power. Further, when the area (c) is reached where the clogging is more advanced, a command is sent to the electric blower to operate the electric blower at a constant rotational speed of N□1.

[Effects of the Invention] According to the present invention, since the control pattern can be changed depending on the state of clogging, the vacuum cleaner can be operated optimally depending on the state of clogging. Also, as a result,
There is no need to waste energy and there is an energy saving effect.

[Brief explanation of the drawing]

FIG. 1 is an overall configuration diagram of a vacuum cleaner according to an embodiment of the present invention,
FIG. 2 is a diagram showing the relationship between air volume and static pressure when the present invention is implemented.

Claims (1)

[Claims] 1. A detection means for detecting a clogging state of a dust collection section of a vacuum cleaner, a control section for controlling the output of an electric blower according to information obtained from the detection means, and the electric blower. In a vacuum cleaner consisting of an air blower, the electric blower is operated at a predetermined rotational speed when the vacuum cleaner is started, a clogging state is detected by the detection means, and the electric blower is operated according to the clogging state at that time. A vacuum cleaner characterized in that the vacuum cleaner is operated by selectively switching a control pattern from two or more types. 2. The vacuum cleaner according to claim 1, characterized in that a pressure sensor is used as the detection means. 3. The vacuum cleaner according to claim 2, characterized in that an air volume sensor is used as the detection means. 4. The electric blower according to claim 1, characterized in that when the value obtained from the detection means exceeds a certain predetermined threshold value S_1, the control pattern is such that the rotation speed of the electric blower is set to the maximum rotation speed. Vacuum cleaner. 5. In claim 4, another threshold value S_
2, and when the rotation speed exceeds the set value, the rotation speed of the electric blower is controlled at a constant speed at a minimum rotation speed.