JPS60261560A - Electrostatic air cleaner - Google Patents

Abstract

PURPOSE:To prevent the deposition of dust on an ionization electrode and a counter electrode, to prevent the generation of abnormal noises due to spark discharge, and to prevent an increase in the output of ozone by collecting dust with an electrostatic dust collecting part in front of an ion wind generating part. CONSTITUTION:An ion wind generating part consisting of an ionization electrode 4 and a counter electrode 5 for forming a high electric field between both electrodes and an electrostatic dust collecting part which is provided in front of said ion wind generating part and consisting of a charging part 7 and a dust collecting electrode plate 8 which forms a high electric field with the charging part 7 are provided in a main case 1 having an air suction port 2 and an air discharge port 3. Namely, since dust is collected by the electrostatic dust collecting part in front of the ion wind generating part, the deposition of dust on the ionization electrode and the counter electrode is controlled, and the generation of abnormal noises due to spark discharge and an increase in the output of ozone are prevented. Consequently, the cleaner can be used for a long period.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to an air purifier using an electrostatic dust collection method and equipped with an ion wind generating section, which is used for general households, automobiles, IJ-en rooms, etc. It is something.

Figure 1 shows a conventional configuration of an electrostatic air cleaner having an ion wind generating section. 101 is the main case of the air purifier, 1
02 is an intake port for a dust-containing air flow, and 103 is an air outlet. 104 is an ionization electrode made of a tungsten wire or the like stretched over a frame (not shown); 105 and 106 are counter electrodes and accelerating electrodes made of aluminum plates, etc.; each is connected with a metal pipe, and both ends are made of 7-lamic, etc. It is screwed and integrated with a holder made of an inorganic insulating material, and is installed on the rib 107 of the main case 101.

Ionization electrode 103, acceleration electrode 106, and counter electrode 10
A high voltage is applied by a high voltage power supply 108 to form a high electric field between the ionizing electrode 103 and the opposing electrode 106, which simultaneously charges dust and
06 and the counter electrode 105 due to the high electric field between the counter electrode plate 1
05 It collects dust on the soil.

In this configuration, if dust (particularly fibrous material) adheres to the counter electrode plate 105, spark discharge is likely to occur particularly at the end face portion facing the ionizing electrode 103, causing abnormal noise and ozone generation. Such problems were occurring.

Purpose of the Invention The present invention CJ solves the above-mentioned conventional problems, suppresses the occurrence of spark discharge even when dust is attached, and effectively exhibits the characteristics of an electrostatic air cleaner using ionic wind. ：It is sea urchin.

Structure of the Invention The electrostatic air purifier of the present invention includes an ion wind generation section consisting of an ionization electrode and a counter electrode that forms a high electric field between it and the ionization electrode, and an ion wind generation section provided in front of the ionization wind generation section, which generates a charged electric field. By installing an electrostatic precipitator consisting of a part and an electrostatic precipitator consisting of a dust collecting plate and a L electrode plate that forms a high electric field, the dust in the dust-containing air is removed before it reaches the ion wind generating part, allowing for long-term use. Also in '1 1 , spark discharge is prevented from occurring between the ionization electrode and the counter electrode.

DESCRIPTION OF THE ACTUAL SIZE EXAMPLE Hereinafter, the embodiment will be described based on FIGS. 2 and 3.

1 is the main case of the air purifier, 2 is an intake port for dust-containing air flow, and 3 is an exhaust port for purified air. 4 is an ionization electrode made of a tungsten wire or the like having a diameter of 60 to 100 μm stretched over a frame (not shown), and 5 is a counter electrode made of a stainless steel metal wire having a diameter of 2 to 3 mm. , also stretched on a frame. A high voltage power source 6 is connected between the ionizing electrode 4 and the counter electrode 5 at 1 to 20 K.
A vO high voltage is applied, creating a high electric field. Reference numeral 7 denotes a charging section made of a tungsten wire, which is stretched between a dust collection electrode plate 8 made of an aluminum plate or the like arranged in parallel, and to which a high voltage of 5 to 50 Kv is applied by a high voltage power source 6. is a counter electrode plate which is arranged in parallel and forms a high electric field between it and the dust collecting electrode plate 8. Reference numeral 10 denotes an opening/closing lid for taking out the dust collecting electrode plate 8 provided on the front upper part of the main case 1.

In the embodiment shown in FIG.
In order to efficiently generate ions from the charging part 7, an opposing plate 12 is provided and grounded.

In the configuration of -1- below, the ionization electrode 4 and the counter electrode 5
In the ion wind generation section consisting of the above, a corona current flows due to the voltage, the ions collide with air molecules, and an air flow is generated due to viscosity, causing dust-containing air to flow in from the intake air 1] 2 of the main case 1. Then, there is a charger made up of a charging section 7 and a dust collecting electrode plate 8.
In the dust collection section, dust in the dust-containing air is charged, and the dust is attracted and captured by the dust collection electrode plate 8 using a high electric field. At this time, the dust collection efficiency in the electrostatic dust collection part is as high as 90 to 95%, so almost no dust reaches the ion wind generation part, and the ionization electrode 4 and opposing type $j1.5 can be used for a long period of time. It does not get dirty even when used, and there is no possibility of fibrous dust adhering to it, so there is no possibility of spark discharge causing abnormal noise or problems with the use of the device, such as an increase in the amount of ozone generated.

In the electrostatic precipitator, almost no dust adheres to the end face of the dust collecting electrode plate 8, and most of the dust is adsorbed to the side surfaces, so the electric field strength does not become locally high and spark discharge hardly occurs. As in the actual example shown in FIG. 3, if the charging section 7 is placed in isolation from the ventilation path and a flat opposing electrode plate 9 is provided between the dust collecting electrode plates 8, a stable electric field that is less likely to cause spark discharge can be created. can be formed.

Further, in the above configuration, the ionization electrode 4, the dust collection electrode, and the plate 8
On the other hand, since no corona current flows between
There is a gap between the two.

Effects of the Invention As described above, according to the present invention, dust is captured by the electrostatic dust collecting section in front of the ionizing wind generation section, thereby preventing dust from adhering to the ionization electrode and the counter electrode, and preventing spark discharge. This prevents the generation of abnormal noise and increase in the amount of ozone generated, and enables long-term use.

Furthermore, according to the present invention, the effect can be achieved simply by arranging the electrostatic dust collector on the front side, and it can be achieved with almost no pressure loss resistance, which is the biggest drawback of ion wind. By combining it with ion wind, it becomes possible to create a silent air purifier, which is its greatest feature. Further, according to the present invention, it is possible to completely eliminate spark discharge in the electrostatic precipitator.

[Brief explanation of the drawing]

Fig. 1 is a sectional view showing the structure of a conventional ion wind electrostatic air purifier, Fig. 2 d1 is a sectional view showing the structure of an embodiment of the present invention, and Fig. 3 is a sectional view showing the structure of another embodiment. FIG. 1...Main case, 2...Intake port, 3...
-Exhaust port, 4-...Ionization electrode, 5...Counter electrode, γ...Charging part, 8-...Pullage collecting electrode plate, 11...
...Counter electrode plate. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
Figure 1O? Figure 2? Figure 3

Claims (2)

[Claims] (1) An ion wind generation section consisting of a main case having an intake port and an exhaust port, an ionization electrode provided in the main case, and a counter electrode that forms a high electric field between the ionization electrode, and the ion wind generation section. An electrostatic air purifier comprising an electrostatic precipitator, which is provided on the front side of the charger, and includes an electrostatic precipitator, which is composed of a charging part and a collecting electrode plate that forms a high electric field in the charged part. (2) Claim 1, wherein the charging section is arranged to be separated from the ventilation path, and the electrostatic precipitating section is arranged alternately in parallel with a dust collecting electrode plate and a counter electrode plate. The electrostatic air purifier described.