JPS63147568A - Air cleaner - Google Patents

Abstract

PURPOSE:To provide prompt responsiveness to the working power of an air cleaner by providing a gas sensor, UV sensor and control circuit to the air cleaner and operating the machine body by the control circuit when said circuit specifically selects the outputs of the gas sensor and the UV sensor. CONSTITUTION:An example is taken of air cleaning at the time of smoking. The UV sensor detects the flame of a cigarette and starts the action A when the cigarette is lit at the time t0. The action C by the gas sensor is started at the time t1 when the output increases up to V1 at which the action signal is emitted upon arrival of the smoke at the gas sensor. The program by the gas sensor is thereafter executed for the specified time TG. The UV sensor emits the action signal G when the cigarette is lit at the point of the time after the time t2 earlier by the time ta than the intended time t3 when the program ends. Since the action signal E of the gas sensor is weak at this time, the UV sensor of the middle is selected to execute the actions G, H. The reincrease of the smoke cannot be detected by the gas sensor at the point of the time when G is started, but the action I by the gas sensor is continued from the time t4 when the working voltage V2 is attained.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to an air cleaner that has a function of detecting indoor air pollution using a sensor and automatically operating the air cleaner.

2. Description of the Related Art The general structure of a conventional air cleaner of this type will be described below with reference to the drawings.

4, 5, and 6, the main body 1 has an electric blower 2 built in, and air taken in from the intake port 3 on the front passes through a pre-filter 4 and is ionized by a counter electrode 5 and a discharge wire 6. After the dust is absorbed by the filter, it is discharged from the exhaust port 8.

A remote control case 9 detachably attached to the upper part of the main body 1
There is an operation switch 10. ! : It is equipped with a display section 11 and further includes a gas sensor 12 for detecting that the indoor air is contaminated, and when the operation is set to automatic mode, the output of the gas sensor 12 is sent to the detection circuit 13. input, the control circuit 16 connected to the power supply 14 and the operation circuit 16 makes a judgment, controls the electric blower 2, the high-voltage power supply 16 that supplies voltage between the counter electrode 5 and the discharge wire 6, and the display circuit 17, and controls the indoor It operated automatically, turning on when it detected dirt and turning off when it was clean. Note that 1B is the power cord.

Problems to be Solved by the Invention These conventional air purifiers with an automatic operation function only use the gas sensor 12 as a sensor, so they cannot be used when smoking, which is the main purpose of air purifiers. In the case of air purification, etc., the smoke particles generated from the cigarette after igniting the smoke and starting smoking.

There was a problem in that a physically impossible waiting time was required for the gas components to diffuse into the room and reach the gas sensor 12 and for the aircraft to start operating. Also,
Many common gas sensors have a part of the heater in their configuration, and after turning on the power, the temperature of the part of the heater stabilizes and a stable output can be obtained within a few minutes. There was a problem that a waiting time was required, and during this time automatic operation using the gas sensor output was not possible.

The present invention is intended to solve these problems, and aims to provide an air purifier that utilizes a sensor that is responsive and is highly usable.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention provides a circuit that controls the operation of the aircraft by a gas sensor, an ultraviolet sensor, and their outputs, and this control circuit controls the output of the gas sensor. The aircraft is controlled by determining the immersion destination based on the output of the ultraviolet sensor, and has a one-hour operation program that corresponds to the output of the gas sensor. It has a judgment function that prioritizes and executes the more powerful driving command among the driving commands from the sensor.

Operation The present invention has the above-mentioned configuration, so that the flame generated by an igniter such as a lighter is detected by the Z external line sensor at the time when the user starts smoking, and the function to start the operation is performed before the gas sensor starts the operation. By placing it just before the end of the operation, it eliminates the delay time for the gas components in the smoke to reach the gas sensor after the start of smoking, resulting in more immediate operation of the air purifier. I'll use what I can.

EXAMPLES Hereinafter, examples will be described with reference to the drawings.

In Figs. 1 to 3, the air intake port 2 provided on the front side of the main body 19
Air taken in from 0 is exhausted from the exhaust port 21 on the top surface,
A filter 22 provided in the flow path adsorbs dust in the air taken in. An electric blower 32 that generates airflow is built into the main body 19', and is located in the flow path between the filter 22 and the exhaust port 21. It is arranged. This electric blower 3
2 is also driven by the operation of the manual switch 24 provided on the remote control unit 23, and the indicator light 25 lights up.If this switch 24 is set to the negative position of the manual operation, the light from the gas sensor 26 and the ultraviolet sensor 27 can be turned on. It also has a built-in control circuit that automatically operates according to the output. 28 is a power cord. This circuit system is shown in FIG. 2. A control circuit 30 connected to a power source 29 receives a signal from an operating circuit 31 including the switch 24 to drive the electric blower 32.

When automatic operation is set, the output from the gas sensor 26 is sent to the control circuit 30 through the detection circuit 33. ζ
Similarly, the output from the ultraviolet sensor 27 is inputted to the control circuit 3o via the detection circuit 34, and the control circuit 3Q automatically operates the electric transmission and rotor 32 according to each input. Here, the gas sensor 26 mainly detects the smoke and gas components of the cigarette 35 during smoking, and the ultraviolet edge sensor 2 detects the flame of the lighter 36 used to ignite the cigarette 36.

Here, the control circuit 30 that processes the sensor signals gives priority to the operation signal from the gas sensor 26 over the operation signal from the ultraviolet sensor 27. During the program operation based on the signal from the gas sensor 26, the signal from the ultraviolet sensor 27 is not accepted, but at a time ta earlier than the scheduled time t5 when the operation based on the signal from the gas sensor 26 ends. After t2, the operation based on the signal from the ultraviolet sensor 27 and the operation based on the signal from the gas sensor 26 are compared, and the more powerful transmission level is selected and the full output is output.

To explain the entire operation in the above configuration, in the third z, a is the output voltage of the gas sensor 26, b is the operating signal from the ultraviolet sensor 27, and C is the operating signal from the gas sensor 26 on the time axis.

First, when the user lights the smoke reed at the time of to, the ultraviolet sensor 27 detects the flame and starts operation A (in operation). At this time, the output voltage of the gas sensor 26' is VB
It will not change until smoke reaches the same gas sensor 26. Next, at a time t1 when smoke reaches the gas sensor 26 and the output rises to a level v1 at which an operation signal is output, operation C (operation/strong) by the gas sensor 26 is started. After this, the operation signal B from the ultraviolet sensor 27 is ignored,
The operation program by the gas sensor 26 is executed for a fixed time of 1°, and progresses from C to E. A predetermined time tI from the scheduled time t3 when this program ends! When the user ignites the smoke pipe again after time t2, which is L before time, the ultraviolet sensor 2a operates and emits an operation signal G, but at this time, the operation signal E from the gas sensor 26 is weak, and the ultraviolet rays Since the operation signal G of the sensor 27 is medium, this operation signal of the ultraviolet edge sensor 27 is selected and the operation G, medium 1H, and weak is executed. At the time of starting G, the gas sensor 26 cannot detect another increase in smoke due to the user's smoking, but the output voltage rises higher than the output voltage vB' at the end time t5 of the program operation by the gas sensor 26, and the operating voltage increases. From the time t4 when v2 is reached, the gas sensor 26 continues to perform strong operation again.

In this way, since the delay in the operation of the gas sensor 28 is compensated for by the ultraviolet sensor 27, the reoccurrence of smoking during the program operation based on the signal from the gas sensor 26 is immediately detected, and the cleaning performance can be followed up more quickly. becomes possible.

Here, the strong, medium, and weak operating signals are the outputs of the electric blower rock 32.

Effects of the Invention As described above, according to the present invention, the time range in which the output of the gas sensor is prioritized over the ultraviolet sensor is limited to a part of the program operation by the gas sensor, and is performed before a predetermined time from the end point. From, Ga.

By selecting and operating the blades with strong operating signals for the gas sensor and ultraviolet ray sensor, it is possible to immediately switch the operating capacity as the amount of smoking increases. It is possible to provide an air purifier that effectively utilizes immediate operation commands from sensors.

[Brief explanation of the drawings] Is the first problem one of the features of the present invention? Figure 2 is a circuit block diagram, Figure 3 is a graph for explaining the operation, Figure 4 is a perspective view of a conventional air cleaner, and Figure 6 is a cross-sectional view of the same side. 6 are block diagrams of the same circuit. 26... Gas sensor, 27... River/ultraviolet M sensor, 30... Control circuit. Name of agent: Patent attorney Toshio Nakao and one other name
1 Figure Otsu - Sword Suzunbu?
7----Outside the system Izumi Zonzu 4th cause 5th figure

Claims (1)

[Claims] It has a control circuit that controls the operation of the aircraft based on the gas sensor, the ultraviolet sensor, and their outputs, and the control circuit controls the aircraft by giving priority to the output of the gas sensor over the output of the ultraviolet sensor. The aircraft is operated for a certain period of time based on the output, and from a predetermined period of time before the scheduled end of the specified period of time, the aircraft is operated by a signal that can operate more strongly among the operating signals from the outputs of the ultraviolet sensor and the gas sensor. air purifier.