KR20080022797A - Apparatus for sensing error of electric cleaning machine - Google Patents

Abstract

An apparatus for sensing error of an electric cleaning machine is provided to increase convenience for a user by forming a micro processor for outputting a control signal on an output part if the voltage is over the reference range. An apparatus for sensing error of an electric cleaning machine comprises a micro processor(20), and an output part(30). The micro processor detects voltage applied to a switch part, and outputs a control signal on the output part if the voltage is over the reference range by detecting that the voltage overpasses the predetermined reference range. The output part such as LED(Light Emitting Diode), or LCD(Liquid Crystal Display) is radiated according to the control signal input from the micro processor.

Description

Apparatus for sensing error of electric cleaning machine}

1 is a block diagram of a vacuum cleaner fault detection apparatus according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

10: A / D Converter

20: Micom

30: output unit

The present invention relates to a vacuum cleaner, and more particularly, to a vacuum cleaner failure detecting apparatus for detecting a failure of a vacuum cleaner by sensing a voltage value applied through a connection hose of the vacuum cleaner.

In general, a vacuum cleaner is a device for cleaning a room by sucking dust and the like with a vacuum suction force generated by generating a vacuum by the rotational force of the motor.

The vacuum cleaner is mainly connected through a main body accommodating a motor and a dust suction filter (pouch), a connecting means installed in the housing, and a suction connection (flexible) hose which provides a passage for sucking dust, etc. It comprises an expansion pipe connected to and coupled to the suction means including a suction brush at the end.

In addition, a handle coupled to the connection hose is provided with a switch unit (for example, a slide volume) that turns on / off the power and selects the suction force from "strong" to "weak".

Such a conventional vacuum cleaner is used while the user grabs the handle and adjusts the switch unit installed on the handle. The connection hose and the handle, and the connection hose and the main body can be freely moved by the connection hose, thereby damaging the electrical connection between them. Can be.

Such a failure occurs in the main body of the vacuum cleaner, and occurs inadvertently in use. When a failure occurs, the user becomes inoperable, so that the user can determine whether the main body of the vacuum cleaner has a connection hose, a handle, and It was not known whether the electrical connection between the connection hose and the housing was damaged.

The present invention was devised to improve the above-mentioned problem, and provides a vacuum cleaner failure detecting method for detecting an error value applied through a connection hose of a vacuum cleaner and displaying an error when the voltage value is out of a certain range. Its purpose is to.

Another object of the present invention is to display the presence or absence of a failure for a particular part to the user so that the point of failure can be clearly recognized.

The present invention devised to achieve the above object is as follows. The vacuum cleaner handle failure detection apparatus of the present invention is a vacuum cleaner for controlling the output of the motor by phase-controlling the gate of the motor drive control triac using a time constant as a value recognized according to the selection level of the switch unit for adjusting the suction level. A microcomputer for detecting a voltage value applied to the switch unit and determining whether the voltage value is out of a preset setting range, and outputting a control signal when the voltage value is out of the preset range, and a control signal input from the micom. It characterized in that it comprises an output unit for emitting light according to.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a vacuum cleaner failure detection apparatus according to an embodiment of the present invention.

The vacuum cleaner according to the embodiment of the present invention phase-controls the gate of the triac triac for motor drive control by setting the slide volume corresponding to the selection level of the switch unit VR as a time constant. It is to control the output of the motor (M).

That is, as shown in FIG. 1, AC power is applied through a plug, and the AC power is applied to the main body and supplied by an on / off switch (not shown) through a connection hose (not shown). Blocked, the time constant is determined by the switch unit VR installed in the handle (not shown) of the vacuum cleaner to drive the gate to control the phase of the triac Triac.

In addition, the resistors R1, R2, R3, and VR drive the gate of the triac through Diac while providing a time constant with the capacitor C.

In the electric circuit of such a vacuum cleaner, since the connection hose forms a closed circuit with the main body together with the handle, the microcomputer 20 is electrically connected to the switch unit VR installed on the handle and applied to the switch unit VR. The A / D converted voltage value is input by the D converter 10 to determine whether the voltage value is out of a preset setting range.

For reference, in the exemplary embodiment of the present invention, the A / D converter 10 is illustrated as being separately installed in the microcomputer 20, but it will be obvious that the microcomputer 20 is installed in the microcomputer 20.

That is, since a closed circuit is formed between the main body and the handle as shown in FIG. 1, damage to the connection hose and the handle, and / or disconnection between the connection hose and the main body can be determined by sensing a voltage value applied to the handle. Will be.

Therefore, when the voltage value applied to the handle is out of the setting range, that is, the voltage value is not detected, the spike voltage value is detected, or the inability to conduct electricity is repeated, damage such as disconnection can be expected.

Therefore, the microcomputer 20 determines that the point between the connection hose and the handle and / or the connection hose and the main body is damaged when the voltage value is out of the setting range. A control signal is output to a light emitting diode (LCD) or a liquid crystal display (LCD) to display that an error has occurred.

That is, the microcomputer 20 determines whether the voltage value applied to the connection hose is out of the setting range, and if the voltage value is out of the setting range, the microcomputer 20 determines that it is an error and displays it to the user through the output unit 30.

The present invention is not limited to the above-described embodiments and can be carried out in various modifications within the scope of the technical idea of the present invention.

According to the present invention configured as described above, by detecting the voltage value applied through the connection hose of the vacuum cleaner and displays the error when the voltage value is out of a certain range, the user can easily recognize the presence or absence of a failure for a specific part Can be.

Claims (1)

In the vacuum cleaner for controlling the output of the motor by phase-controlling the gate of the motor drive control triac with a time constant as the value recognized according to the selection level of the switch unit for adjusting the suction level, A microcomputer that detects a voltage value applied to the switch unit, determines whether the voltage value is out of a preset setting range, and outputs a control signal when the voltage value is out of the setting range; And And an output unit configured to emit light according to a control signal input from the microcomputer.

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