JPH0577464B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a tabletop air purifier used in homes, offices, etc.

(Prior technology) Electrostatic precipitator air purifiers, which pass air through a high-voltage band and charge and attract dust contained in the air, are old and used to remove soot, smoke, etc. generated from industry. However, in recent years, products for home and office use have become popular.

(Problem to be solved by the invention) With the increasing movement towards health and a clean living environment, the environment for desk work has improved considerably, but it is extremely difficult to set up a perfect space. .

Even if you install an air purifier, it will be almost meaningless if smoking is not prohibited indoors, and even if you use an air purifier, there are problems with air circulation and purification ability, and it will reduce the amount of air in the air. It is practically impossible to collect all floating fine dust from the entire office space.

Based on the above recognition, the present invention purifies the very limited range of air that a single person breathes.
The purpose of this study is to identify a tabletop air purifier that can provide a comfortable living and working environment.

In addition, the tabletop air purifier of the present invention can also remove allergy-inducing substances floating in the air, so it can be used by patients with allergic diseases in hospitals or at home, and it has become a hot topic every spring. It is effective for cedar hay fever, etc.

(Structure of the Invention) To achieve the above object, the tabletop air purifier according to the present invention is provided with a cylindrical frame that is fixed to a base via a support and supported so as to be able to swing vertically and horizontally. Inside the body, in order from the air intake, there is a fan driven by a motor, a positive electrode of a certain length placed via a support member in the same direction as the air flow, and a number of transparent holes that serve as air passage holes. A plurality of negative electrode units each consisting of a hat-shaped negative electrode provided with a hole and an auxiliary negative electrode formed of a metal wire arranged in a randomly rounded manner around the negative electrode, and a filter are arranged in series. The negative electrode unit and filter are removably arranged in a cylindrical frame, and the air taken in by the rotation of the fan is purified by electrostatic precipitation and then supplied from the exhaust port. do.

Next, details of the present invention will be explained according to embodiments shown in the accompanying drawings.

FIG. 1 is a sectional view showing the main parts of the air purifier of the present invention. In the drawing, reference numeral 10 denotes a cylindrical frame, which is made of various non-conductive synthetic resin materials and formed into a round or square pipe shape or frame structure.

Inside the cylindrical frame 10 described above, a positive electrode 20 of a certain length serving as a charging electrode is arranged via a support member 21 so as to be in the same direction as the air flow, and a negative electrode 30 is provided with a large number of through holes serving as air permeation ports, and is configured such that at least a portion of the positive electrode is positioned at a constant distance from the negative electrode.

Reference numeral 40 denotes an auxiliary negative electrode, which is arranged after the negative electrode 30 and is composed of a randomly rolled metal wire.

As the positive electrode 20, it is desirable to use a chrome-plated rod-shaped or plate-shaped tungsten wire with a thickness of about 0.5 mm.

Negative electrode 30 is approximately 16 mm from positive electrode 20
Place it at a certain distance away. This negative electrode 3
The shape of the electrode 0 can be designed in various ways, from a hat-like shape with a chevron-shaped cross section to a cylindrical shape as shown in the figure, and the shape to be formed is also related to the shape of the positive electrode 20.

Reference numeral 50 denotes an air blowing means, which is composed of a fan 52 driven by a motor 51.

In the air purifier explained above, the positive electrode 20
Negative electrode 30, auxiliary negative electrode 40 approximately
When the motor 51 of the blower means 50 is driven with a DC voltage of 3KV to 7Kv applied, the fan means 50 rotates and air flows in the direction of the arrow.

Due to the discharge phenomenon from the positive electrode 20 to which a high voltage is applied to the negative electrode 30, dust particles floating in the air are positively charged and the negative electrode 30
will be absorbed by. Dust and the like that pass through without being adsorbed by the negative electrode 30 are separated from the air electrically or by a collision effect while passing through the maze-like linear space of the auxiliary negative electrode 40 arranged behind the negative electrode 30. be done. In addition, the DC voltage is intermittently applied at a frequency of about 180/sec.
A pulse current that turns on and off may be applied.

FIG. 2 shows an embodiment in which electrode parts A, B, and C are arranged in multiple stages on the cylindrical frame 10. In this embodiment, phase-shifted pulse currents may be applied to each electrode A, B, and C.

Although not shown in the drawings, the electrodes may be formed in multiple stages by configuring a unit electrode unit in which each electrode is disposed within a frame and joining these units in series. Further, such electrode units can be arranged in series, and furthermore, it is also possible to arrange a large number of electrode units in series in parallel to form a large-capacity type.

Reference numeral 60 denotes a filter made of cotton, fibrous or sponge-like synthetic resin, etc., and can be easily taken out and replaced or cleaned by removing the exhaust section cover 61 having a through hole.
Furthermore, like the filter 60, the auxiliary negative electrode 40 can also be taken out and can be easily replaced or cleaned.

Incidentally, if activated carbon, zeolite adsorbent, etc. are interposed in the filter part, it is more effective in removing bad odors.

3 to 5 show the entire air purifier according to the present invention, and in the embodiment shown in FIG. 3, the air purifier portion is disposed within the base 70,
Purified air is supplied from an outlet 71, and a lamp 72 is arranged at the top. Therefore, if you place it on your desk or the like, you can comfortably work at your desk while breathing purified air under a bright lamp.

Note that the air volume may be adjusted by opening and closing the purified air outlet 71, and it is also desirable to arrange a wind direction adjustment plate at the air outlet 71.

4 and 5 show other embodiments, and in the one shown in FIG. 4, a power supply unit including a main circuit is installed in a base 80 and is attached via a support 81. The air purifier shown in FIGS. 1 and 2 is placed in the cylindrical frame 82,
It is desirable that the cylindrical frame body 82 be mounted so that it can swing vertically and horizontally.

(Effects of the Invention) Since the air purifier of the present invention is configured as described above, by placing it on a designated desk for desk work, the user can always breathe purified air comfortably. This has the advantage of allowing you to be in a clean environment and freeing yourself from inhaling dirty indoor air and cigarette smoke.

In general, the decline in adsorption performance of air purifiers for floating dust, etc. is largely related to dirt on the dust collection electrode (unlike industrial dust collectors, home air purifiers have negative electrodes). Therefore, if the dust collection electrode becomes extremely dirty, most of the dust collection effect will be lost. For this reason, periodic cleaning of the dust collection electrode is essential, but dirt on the dust collection electrode cannot be easily removed with household cleaning agents, and air purifiers with significantly reduced efficiency cannot be used as is. There are many examples. On the other hand, in the air purifier according to the present invention, the dust collection electrodes formed by a negative electrode and an auxiliary negative electrode are arranged in series in multiple stages, and the dust is attracted by the first stage dust collection electrode. The remaining electrically charged floating dust will be adsorbed and removed by the next-stage dust collection electrode, so even if the dust collection electrode becomes contaminated from the first stage, the overall air purification function will be maintained above the specified level. There is an advantage that it can be done.

Also, since the air direction can be changed vertically and horizontally, it is advantageous as a tabletop air purifier.

Furthermore, the airflow caused by the fan has the advantage that it can also be used as an electric fan.

[Brief explanation of the drawing]

FIGS. 1 and 2 are sectional views showing essential parts of the present invention, and FIGS. 3 to 5 are perspective views showing the whole. In the figure, each symbol indicates the following. 10...
...Cylindrical frame body, 20...Positive electrode, 30...Negative electrode, 40...Auxiliary negative electrode, 50...
Motor, 51... Fan, 60... Filter, 7
0... Base, 71... Air outlet, 72... Lamp, 80... Base, 81... Support column, 82... Cylindrical frame.

Claims (1)

[Claims] 1 Inside the cylindrical frame, which is fixed to the base via pillars and supported so that it can swing vertically and horizontally, a fan driven by a motor and a fan driven by a motor are installed in order from the air intake. A positive electrode of a certain length is placed through a support member so as to be in the same direction as the negative electrode, a hat-shaped negative electrode with a large number of through holes that serve as air passage holes, and a negative electrode of a certain length is arranged in a randomly rounded shape around the negative electrode. A plurality of negative electrode units each consisting of an auxiliary negative electrode made of a metal wire and a filter are arranged in series, and the negative electrode units and the filter are removably arranged in a cylindrical frame. This tabletop air purifier is characterized by the fact that the air taken in by the rotation of the fan is purified by electrostatic precipitator and then supplied from the exhaust port.