JPH01215329A - Air cleaner - Google Patents

Abstract

PURPOSE:To operate a dust collector controlled with a microcomputer without danger of malfunction by detecting the starting of application of an electric source and detecting the state previously prevent with a switch and performing operation correspondent thereto in the case of performing ON/OFF of the household electric source, etc. CONSTITUTION:An air cleaner main body 21 is supplied with an electric source via a code 23 fitted with an electric source plug from a household plug socket 22. The main body 21 is provided with both a control circuit utilized with a microcomputer and an operation switch 25 changed over to plural stages incorporating the stop of the air cleaning function. The main body 21 is provided with a starting presetting switch capable of previously presetting such an initial state that the equipment is represent with the electric source line of the main body 21 is once turned off and thereafter turned on. Therefore after boosting its voltage to the voltage capable of driving the microcomputer, the preset state of the switch is inputted as a signal of the microcomputer and the air cleaner can be controlled.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an air cleaner incorporating a microcomputer.

BACKGROUND ART FIG. 4 shows the basics of a conventional control circuit for this type of air cleaner.

Reference numeral 1 denotes a household commercial frequency power source, which forms a DC stabilized power source 4 via a step-down circuit 2 such as a transformer and a rectifier circuit 3. A control section circuit 6 including a microcomputer 6 is connected to the DC stabilized power supply 4, and inputs signals from an operation circuit 7 such as a switch and a sensor circuit 8 to control an electric blower 9 etc. connected to the power supply 1. Drive circuit 10 to drive
Outputs a signal to. Here, the reset circuit 11 applies a signal to the reset terminal of the microcomputer 5 when the DC stabilized power supply 4 rises from a low voltage that cannot drive the microcomputer 6 to a voltage that can drive the microcomputer 6, and controls the operation of the microcombiator 6. It starts with non-volatile memory,
If a backup power supply is not provided, the microcomputer 6 is generally set to an initial state after being reset, and the electric blower 9 and the like are all stopped until a signal from the operating circuit 7 is input. Ta.

Problems to be Solved by the Invention However, with such a configuration, it was not possible to control the operation and stopping of the air purifier by opening and closing the airframe source circuit.

In other words, it is not possible to control multiple units at the same time or remotely operate them by opening and closing the circuit of the home-use unit that supplies power to the air purifier. It was necessary to provide operating methods, operating circuits, and equipment.

The present invention solves these conventional problems and aims to provide an air cleaner that is easy to use.

Means for Solving the Problems The present invention solves the conventional problems described above. and an operation switch that switches to the stage of operation, and selects the initial state in which the aircraft is reset when the power line of the aircraft is once opened and then closed to all or some of the states that can be operated and set with the operation switch.・This device is equipped with a switch for setting, and after the DC power supply that drives the microcomputer rises to a voltage that can drive the microcomputer, the setting state of the switch is input as a signal to the microcomputer, and control is performed according to the setting. It outputs a signal and starts operation.

Operation With the above configuration, when the device is normally connected to a household power source and power is supplied, operation can be stopped by the user operating the operation switch, and operation can be stopped by opening or closing the power supply circuit of the household power source.・Can be stopped. Further, depending on the selection of the setting switch, it is also possible to make it impossible to operate the power supply circuit with anything other than the operation switch even if the power supply circuit is opened and closed. As a result, if air purifiers installed in one room or several rooms are connected to the same power circuit, it is possible to start and stop them by opening and closing the power circuit. It is easy to operate and can be realized at low cost.

Example Embodiments of the present invention will be described below with reference to the drawings.

In FIGS. 1 and 2, the main body 21 of the air purifier is supplied with power through a household outlet 22 and a cord 23 with a stain source plug, and an electric blower 24 built into the main body 21 is It is operated by operating the operating section 26. Reference numeral 26 denotes a start setting switch provided in a door 27 on the side of the main body 21, which can be set to four stages A to D. The operation section 26 has switches 26-1 to 26-3.

The switch 26-1 is for stopping, and the switch 26-2 is for switching the rotation speed of the electric blower 24 between automatic, strong, and weak.
When set to automatic, operation is performed according to the output of the sensor 28. The switch 26-3 is a timer setting switch, and stops when the set time elapses. 29 is a display element;
The setting states of the switches 26-1 to 26-3 are displayed. 3
0 is a display board that indicates that the start switch 26 is set to a position other than A, and is automatically displayed according to the setting of the start switch 2e. The household AC power supply includes a step-down circuit 32 that includes a transformer 31. A DC stabilized power supply to be supplied to the microcomputer 36 is formed by the rectifier circuit 33 and the power supply stabilizing section 34, and provides a voltage vDc. The microcomputer 36 includes the operation section 26. Start setting switch 26. A signal from the sensor 28 is inputted, and a signal is outputted to a drive circuit 36 that drives the display element 29 and the electric blower 24. Further, the reset circuit 37 provides an operation start signal for the microcomputer 36 when the voltage VDc rises to a voltage capable of driving the microcomputer 35. Next, in FIG. 3, 38 is @tp when the seven-bit circuit 37 gives an operation start signal to the microcomputer 36, 39 temporarily sets the output of the microcomputer 36 to a stopped state, and 4o It is determined which state the start setting switch 26 is in, A to D. If A, it remains stopped, B, automatic operation, and C.
L41 sets the output to strong operation state, and weak operation state to D
is a wall-mounted switch that opens and closes the household outlet 22 using a circuit on the wiring.

To explain IIJ's work in terms of soil and mud composition, it looks like the wall switch 4o is open! When there is dust, power is not supplied to the air cleaner 21 and the air cleaner 21 is stopped. When the air cleaner 21 is closed, power is supplied and the voltage vDc of the DC stabilized power supply gradually increases, allowing the microcomputer 36 to operate. , reset circuit 3
6 gives a signal, the start setting switch 26 is set to either 8-stop, B-automatic operation, C-strong operation, or D-weak operation, and a signal is input from the operation section 26. or until the power supply stops.

This makes it possible to stop and operate the aircraft by connecting and disconnecting the power plug cord 23 and opening/closing the wall switch 4o, making it possible to control and remotely control multiple aircraft with a single switch at low cost and without the risk of malfunction. be. Note that the display board 30 displays the operation of the aircraft by opening and closing the power supply even when the power supply is not supplied.

Effects of the Invention As is clear from the above embodiments, the air purifier of the present invention detects the start of power supply and detects the state set in advance by the switch when a household power supply, etc. is opened or closed. By starting operations accordingly, it is possible to start and stop multiple machines at the same time by opening and closing the household power supply wiring circuit, and remote control can also be performed cheaply and easily without the risk of malfunction.

[Brief explanation of the drawing]

Fig. 1 is an external view of an air purifier showing an embodiment of the present invention, Fig. 2 is a circuit block diagram of the same, Fig. 3 is a flowchart of the same,
Figure 4 is a circuit block diagram showing a conventional air purifier. 24...Electric blower, 26...Operation unit, 26...Start setting switch, 36...Microcomputer, 37...Reset circuit.

Claims (1)

[Claims] It has a control circuit using a microcomputer and an operation switch that switches the air purification function to multiple stages including stopping, and the aircraft is reset to the initial state when the power line of the aircraft is opened and then closed. An air purifier provided with a switch for selecting and setting all or some of the states that can be operated and set using the operation switch.