JPH0614903B2 - Vacuum cleaner controller - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vacuum cleaner capable of changing the rotation speed of a motor for industrial use and general household use.

2. Description of the Related Art In recent years, with the spread of electric vacuum cleaners, there is an increasing demand for products that realize a strong suction force and quiet operation noise. For this reason, it is equipped with a motor capable of achieving a strong suction force, and the number of rotations of the motor can be easily changed at the hand of the hose, etc., and it operates at the minimum required number of rotations to reduce noise.

Also, in addition to the manual setting of the number of revolutions as described above, various sensors are equipped to change the number of revolutions automatically.
Some get the minimum required number of rotations.

The conventional vacuum cleaner will be described below.

FIG. 3 is a block diagram of an electric circuit of a conventional vacuum cleaner. In FIG. 3, 1, 2, 3, and 4 are switches for setting the operating state, and 5 is a switch 1, 2, and
An operation mode setting device for setting an operation state by inputting 3 or 4 or an input from the dust sensor unit 6, 7 is a display unit showing the operation state or the operation state of the sensor, 8 is a motor, 9 is an AC power supply,
Reference numeral 10 denotes a phase control circuit which sends a variable conduction angle of the motor 8 to the bidirectional thyristor 11 by the operation mode setting device 5.

The operation of the electric vacuum cleaner configured as described above will be described below.

First, by pressing the switch 1, the motor 8 is fixed at a predetermined rotation speed, and a manual operation mode in which the rotation speed of the motor 8 does not change even if dust is detected by the dust sensor unit 6 is selected. The rotation speed of the motor 8 is determined by 5, and the gate signal is sent to the bidirectional thyristor 11 by the phase control circuit 10, and the motor 8 rotates at the set rotation speed.

Further, the automatic operation mode is selected by the switch 2, and at this time, the rotation speed of the motor 8 changes depending on the detection of dust by the dust sensor unit 6.

Each time the switch 1 is pressed, as shown in FIG.
Weak and rotation speed changes. As shown in FIG. 4, the switch 2 selects the standard operation mode → silent operation mode each time the switch 2 is pressed.

The switch 3 can rotate the rotary brush provided at the suction port. The switch 4 stops the rotation of the motor 8.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above-described conventional configuration, when the switch 1 is pressed, the strong rotation is always started, and when the switch 2 is pressed, the standard operation mode is always started. When operating with the setting of 1) and temporarily stopped, it had a drawback that it was not possible to operate with the setting before the stop unless the switch was pressed several times.

The present invention solves the above-mentioned conventional problems, and provides an electric vacuum cleaner in which the operation mode is stored when the operation is stopped and the switch operation is simplified when the operation is restarted.

Means for Solving the Problems To achieve this object, an electric vacuum cleaner according to the present invention includes a power control device for controlling the rotation speed of a motor, a manual mode switch for setting a rotation pattern of the motor, and a dust sensor section. It has an automatic operation mode switch that sets the rotation speed by detecting the dust of the motor and a storage device that stores the rotation pattern immediately before the motor rotation is stopped, and the rotation speed immediately before the stop when the motor is restarted by the storage device. It is made by rotating the motor.

Action With the above configuration, when the temporary motor is stopped during manual operation and it is operated again manually, it rotates at the number of rotations set before the stop, and the temporary motor is stopped during automatic operation and automatically restarted. In this case, the operation can be performed in the operation mode before the stop, and in the case of intermittent operation, the switch operation can be simplified. Further, even if the operation is stopped during the silent mode operation, the standard mode operation is not performed when the engine is restarted, so that the sound is not temporarily noisy.

Embodiment An embodiment of the present invention will be described below with reference to the drawings.

FIG. 1 shows an electric circuit of an electric vacuum cleaner according to an embodiment of the present invention, and 12 is a storage device for an operation mode. Since the apparatus of this embodiment shown in FIG. 1 has basically the same configuration as the conventional apparatus shown in FIG. 3, the same components are designated by the same reference numerals and detailed description thereof is omitted. To do.

The operation of the electric vacuum cleaner configured as described above will be described below.

First, when the manual mode switch 1 is pressed, the manual operation mode is set and the motor rotates. In FIG. 2, the motor 8 rotates at a rotation speed of 13. When the manual mode switch 1 is pressed again, the motor rotates at a rotation speed of 14. At this time, the switch 4 is pressed to stop the rotation. Then, when the manual mode switch 1 is pressed again, the rotation starts at the rotation speed of 14 immediately before the stop. When the motor 8 is stopped at a rotation speed of 15 and restarted in the same manner as above, the motor 8 is started at a rotation speed of 15.

Next, when the automatic operation mode is selected by the automatic operation mode switch 2 and the rotation is stopped by the switch 4 during the operation in the silent operation mode, the automatic operation mode switch 2 is pressed to start the silent operation mode.

As described above, by storing the operation settings immediately before the operation stop using the storage device, at the time of restart, it is possible to operate at the same rotation speed and mode as the settings immediately before the stop.

EFFECTS OF THE INVENTION As described above, by providing the configuration in which the restarting operation is performed immediately before the stop, it is possible to realize an excellent vacuum cleaner that can simplify the operation during the restarting operation.

[Brief description of drawings]

FIG. 1 is a block diagram of an electric circuit of an electric vacuum cleaner according to an embodiment of the present invention, FIGS. 2A and 2B are operation explanatory views of the embodiment of the present invention, and FIG. 3 is an electric circuit of a conventional electric vacuum cleaner. A block diagram and FIGS. 4A and 4B are operation explanatory views of a hand operation unit of a conventional electric vacuum cleaner. 1, 2, 3, 4 ... Switch, 8 ... Motor, 10 ...
... power control device (phase control circuit), 12 ... storage device.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hiroshi Kawakami 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (72) Tadashi Matsushiro 1006 Kadoma, Kadoma City, Osaka Matsushita Electric Industrial Co., Ltd. 72) Inventor Seiji Yamaguchi 1006 Kadoma, Kadoma City, Osaka Prefecture Matsushita Electric Industrial Co., Ltd. (56) Reference JP-A-62-258629 (JP, A)

Claims (1)

[Claims] 1. A power control device for controlling a rotation speed of a motor, a manual mode switch for setting a rotation pattern of the motor, an automatic operation mode switch for setting a rotation speed by detecting dust by a dust sensor unit, and a motor. A controller for an electric vacuum cleaner, comprising: a storage device for storing a rotation pattern immediately before rotation stop, wherein the storage device rotates the motor at a rotation speed immediately before stop when the motor is restarted after rotation stop.