JPS63100958A - Air purifier - Google Patents

Abstract

PURPOSE:To start operation as fast as possible by rapidly detecting the smoke particles of gaseous component of smoke, by sucking the air in a room into a gas sensor through a suction means simultaneously with the setting of an automatic operation mode. CONSTITUTION:When a user sets a mode setting switch to an appropriate operation mode, the signal of said switch is transmitted to a control circuit 29 from an operation circuit 34 to rotate a fan 30. The air in a room is sucked by the rotation of the fan 30 to generate an air stream. When smoking is performed in this state, the smoke particle or gaseous component generated from tobacco moves to the vicinity of the fan 30 along with the air stream and detected by the gas sensor 27. The detection signal is sent to the control circuit 29 from a detection circuit 28 and the control circuit 29 controls an electric blower 23 according to said signal to purify the air in the room.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an air cleaner having a function of detecting dirt in indoor air and automatically operating the air cleaner.

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

In FIGS. 4, 6, and 6, an electric blower 2 is built into the main body 1, and the dust-laden air sucked in through the front air intake port 3 is purified and discharged through the exhaust port 8. It looks like this. Air containing dust first passes through a pre-filter 4, is ionized by a counter electrode 6 and a discharge wire 6, and fine dust is adsorbed by a filter 7 and then discharged from an exhaust port 8. Such an air cleaner is capable of automatic operation, and is operated by a remote control device 9 detachably attached to the upper part of the main body 1. The remote control device 9 is provided with a mode setting switch 1o and a display section 11a for displaying the operating state set by the mode setting switch 1o, and a display section 11b for displaying the time when timer operation is specified by the timer switch 12.
Furthermore, it is equipped with a gas sensor 13 for detecting that the indoor air is contaminated. When the mode setting switch 10 is operated, the output of the gas sensor 13 is input to the detection circuit 14 built in the main body 1, and the control circuit 17 connected to the power supply 16 and high voltage power supply 16 also built in the main body 1. determines this and creates a voltage between the electric blower 2, the counter electrode 6, and the discharge wire 6.

The high-voltage power supply 16 that supplies the indoor air and the display unit 11 are controlled, and automatic operation is performed in which the indoor air conditioner turns on when dirt is detected and turns off when the room becomes clean.

Problems to be Solved by the Invention Such conventional air purifiers with an automatic operation function use the gas sensor 12 as a sensor, but this is not suitable for air purification during smoking, which is the main use of the air purifier. In some cases, a considerably long waiting time was required before operation could begin. That is, the time it takes for smoke particles and gas components generated from the cigarette to reach the gas sensor 12 after igniting a cigarette and starting smoking depends only on natural diffusion and natural convection of the smoke particles and gas components. Met. In other words, there is a problem in that a physically unavoidable waiting time is required before the aircraft starts operating.

The present invention solves the above-mentioned problems, and aims to provide an air cleaner with a waiting time as short as possible.

Means for Solving the Problems In order to achieve the above object, the present invention provides a gas sensor that detects the degree of pollution of indoor air, a control circuit that automatically operates the aircraft according to its output, and a gas sensor that detects the degree of pollution of indoor air. and a suction means for guiding the gas to the gas sensor.

Effects of the present invention With the above-described configuration, the suction means operates simultaneously when the automatic operation mode is set to suck indoor air to the gas sensor, so that the gas sensor can quickly detect smoke particles and gas components during smoking. The system allows automatic operation to start almost at the same time as the start of the system.

Embodiments Hereinafter, embodiments of the present invention will be described based on FIGS. 1 to 3.

19 is the main body of the air purifier of this embodiment, which has an intake port 2 on the front.
o. Equipped with an exhaust port 21 on the top surface. Reference numeral 22 denotes a filter, which is provided in the middle of the intake/exhaust path formed by the intake port 20 and the exhaust port 21. 23 is an electric blower built in the main body 19. 24 is a remote control device for setting operating conditions, etc.; a mode setting switch 25 for setting the operating mode; a display section 26a that lights up when the mode setting switch 26 is set and the aircraft starts operating; It has a gas sensor 27 for detecting dirt on the main body 19, a timer 33 for setting the usage time, and a display section 26b for displaying the set time of the timer 33, and is detachably attached to the upper surface of the main body 19. 28 is a gas sensor 27
29 is a control circuit for controlling the fan 30 and the electric blower 23; 30 is a fan as a suction means; 9 is provided near the remote control device 24; and the mode setting switch 26 is set. At the same time, it rotates and sucks air from the room. This fan 3o is for quickly guiding indoor air to the vicinity of the gas sensor 27, and is set in the main body 19 near the gas sensor 27. It is also possible to place the gas sensor 27 in the suction passage by the fan 30 and allow the indoor air to come into direct contact with the gas sensor 27. However, in this case, the performance of the gas sensor 27 will change slightly due to the influence of the suction air. A fan 30 is installed in the main body 19 near the gas sensor 27 so that the air sucked by the fan 3o does not come into direct contact with the gas sensor 27. Therefore, if the above purpose is satisfied, the installation position of the fan 30 is not limited to the position shown in the embodiment. It can also be provided in the main body 19. In the figure, 31 is a power cord, 32 is a power source, and 34 is an operating circuit.

The operation of this actual flow example will be explained below with reference to FIG.

When the user sets the mode setting switch 26 to an appropriate operation mode, this signal is sent from the operation circuit 34 to the control circuit 2e.
The fan 30 rotates.

As the fan 30 rotates, indoor air is sucked and an air current is generated. When smoking in this state, smoke particles and gas components generated from the cigarette quickly move to the vicinity of 77 and 30 along with the airflow, as shown by the arrows in FIG. The gas sensor 27 detects the smoke particles and gas components, and the detection circuit 28 sends a signal to the control circuit 29.
0 controls the electric blower 23 according to this signal, and the indoor air is purified. In addition, fan 3o
The air sucked in passes through a filter and is discharged from the exhaust port 21. In this way, automatic operation is continued according to the signal from the gas sensor 27.

When the indoor air is purified, the electric blower 23 is turned off.

As described above, in this embodiment, the fan 3 is
Because o is rotated, smoke particles and gas components can be quickly detected when smoking occurs.

Effects of the Invention As described above, the structure includes a gas sensor that detects dirt in the indoor air, a control circuit that automatically operates the aircraft according to the output of the gas sensor, and a suction means that guides the indoor air to the gas sensor. It is possible to provide an air purifier that can automatically operate almost at the same time as smoking starts.

[Brief explanation of the drawing]

Fig. 1 is an external perspective view of an air purifier according to an embodiment of the present invention, Fig. 2 is a circuit block diagram of the same, Fig. 3 is a sectional view of the same essential parts, and Fig. 4 is an external external perspective view of a conventional air purifier. FIG. 6 is a diagram showing the same judgment, and FIG. 6 is a block diagram of the same circuit. 27... Gas sensor, 29... Control circuit, 30... Fan. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 3
Figure 4 Figure 5

Claims (1)

[Claims] An air purifier comprising a gas sensor that detects the degree of contamination of indoor air, a control circuit that automatically operates the machine according to the output of the gas sensor, and a suction means that guides indoor air to the gas sensor.