JPH01249058A - Electric air cleaner - Google Patents

Abstract

PURPOSE:To increase the air quantity in the use as circulator and prevent the reduction of the service life of a filter in use by installing a circuit configuration in which an electric conduction circuit to a charging part is cut off when a filter set is not yet mounted and an electric conduction circuit to a motor is kept in closed state. CONSTITUTION:A limit switch 16 is set into closed state by the pushing of the limit switch 16 by a filter set 5, when the filter set 5 is inserted, and a circuit for the electric conduction of a charging part 4 through a power transformer 12 and a flyback transformer 13 is closed. Further, on the contrary, when the filter set 5 is not yet mounted, the limit switch 16 is put into opened state, and the electric conduction to the changing part 4 is suspended, and the electric conduction of a motor 8 is maintained if the electric power switch 11 is in turned-ON state. Therefore, even if the filter set is not yet mounted, the motor and blades can be driven, and since the electric conduction to the charging part 4 is suspended, the ordinary air cleaner can be used, securing safety, and the use as the machine for the exclusive use for circulator having the improved circulator effect by the increase of the air quantity is permitted, and the service life of a filter can be improved.

Description

[Detailed description of the invention] Industrial applications The present invention relates to an electric air cleaner.

BACKGROUND OF THE INVENTION Conventionally, this type of air purifier has been constructed as shown in FIGS. 2 and 3. In other words, the dust in the air taken into the front grille 1 and into the main body is exposed to a high pressure of 7KV.
It is positively charged in a charging section 4 consisting of a discharge wire 2 and a grounded counter electrode plate 3, and dust is collected and deodorized in a filter set 5 that holds an electrostatic filter and an activated carbon filter in a resin frame. It has become. The air thus purified is blown out by a blower device consisting of a blade 7 provided on the back inside the main body case e, a driving motor 8, etc. It started to come out from JA/9.

Further, as shown in the circuit block diagram of FIG. 4, a normally open limit switch 10 is disposed in the power supply circuit, and when the filter set 6 is inserted, the filter set 6 presses the limit switch 1o, causing the circuit to close. When the power switch 11 is closed and the power switch 11 is in the human state, the charging unit 4 and the motor 8 are energized via the positive power source 12 and the flyback transformer 13.

On the other hand, when the filter set 5 is removed, the filter outlet 14 is open and there is a danger that your hand may come into contact with the charging section 4, so the limit switch 1o is turned off and the charging section 4 and motor 8 are not energized. was to be suspended.

Problems to be Solved by the Invention In such a conventional configuration, it is possible to attach the main body case 6 to the wall surface 15 as shown in FIG. Even when using the filter set 5, indoor air passes through the filter set 5, resulting in a shortened filter life.

The present invention solves these problems by making it possible to blow air even when the filter set 6 is not inserted.
The purpose is to increase the air volume as a circulator and prevent the life of the filter from decreasing during use.

Means for Solving the Problem In order to solve this problem, the present invention provides a charging section consisting of a discharge wire and a counter electrode plate, a filter set consisting of an electrostatic filter for collecting dust, an activated carbon filter for deodorizing, etc., and a blade for blowing air. , a driving motor, etc., and has a circuit configuration in which when the filter set is not inserted, the energizing circuit to the charging section is cut off, while the energizing circuit to the motor is maintained in a closed state.

This configuration allows the blades to be removed even if the filter set is not inserted.
The motor can be moved, making it possible to use it as a circulator.

Example Hereinafter, one embodiment of the present invention will be described based on FIG.

FIG. 1 is a block diagram showing a circuit according to an embodiment of the present invention, but the main body configuration other than the main circuit is the same as that of the conventional example. As with the conventional example, when the filter set 6 is inserted, the limit switch 16 is closed by pushing the limit switch 16, and the circuit that supplies electricity to the charging section 4 via the power transformer 12 and the flyback transformer 13 is closed. close. Conversely, when the filter set 6 is not inserted, the limit switch 1e is in the open state, and the power supply to the charging section 4 is stopped. At this time, the power supply to the motor 8 is maintained if the power switch 11 is in the on state. be done.

Therefore, according to the above configuration, even when the filter set 5 is not inserted, the power supply to the charging section 4 is stopped.
Since air can be blown by the blades 7 and the motor 8, it can be used not only as an air cleaner with a normal filter set 6 inserted, but also as a circulator with the filter set 6 removed. In addition, when using the circulator, without the filter set 5, it is possible to output a larger amount of air than when using it as an air purifier, further enhancing the circulator effect, and only when using it as an air purifier indoors. Since air passes through the filter set 6, the life of the filter set 6 can be extended. Note that when the filter set 6 is not inserted, the power supply to the charging section 4 is stopped, so safety is ensured.

Effects of the Invention As described above, according to the present invention, the blades and motor can be moved even if the filter set is not inserted, and the electricity to the charging part is stopped, so normal operation can be carried out while ensuring safety. In addition to being used as an air purifier, it can also be used as a dedicated circulator with an enhanced circulator effect due to increased air volume, resulting in the effect of extending the life of the filter.

[Brief explanation of the drawing]

Fig. 1 is a block diagram showing a circuit of an electric air purifier according to an embodiment of the present invention, Fig. 2 is a sectional view showing a conventional air purifier, and Fig. 3 is a perspective view of the same air purifier. FIG. 4 is a block diagram showing the circuit of the air cleaner. 4...Charging unit, 8...Motor, 11...
...Power switch, 16...Limit switch. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 4-Charged bell 8-1-Motor

Claims (1)

[Claims] It is equipped with a charging section consisting of a discharge wire and an opposing electrode plate, a filter set consisting of an electrostatic filter for dust collection, an activated carbon filter for deodorizing, etc., a blower blade, and a motor for driving the same. An electric air purifier that is equipped with a limit switch that closes when a filter set is attached to the energizing circuit for electrically charged parts other than the motor.