JPH0522044U - Dust collection cell - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a dust collection cell that is small in discharge scale, has a low discharge sound, is versatile, and is easy to manufacture. A second plurality of electrode plates 2 arranged through a space between a plurality of first electrode plates arranged with the respective holes 1a formed on the same axis, and the above first
A short tubular high-resistor spacer 5 which is interposed between the plurality of electrode plates 1 so as to match the hole 1a, and the high-resistor spacer 5 which is inserted through the high-resistor spacer 5 through the hole 1a. A voltage application for applying a high voltage between the first plurality of electrode plates 1 and the second plurality of electrode plates 2 via the insulating column body 11 for preventing the displacement of 5 and the high resistance spacer 5. And means 3.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a dust collecting cell used in a dust collecting device in an electronic air cleaner or the like.

[0002]

[Prior Art]

 FIG. 4 is a configuration diagram showing a conventional dust collecting cell. In FIG. 4, reference numerals 1 and 2 denote a plurality of positive electrode plates, which are thin plates made of aluminum or the like and are arranged in parallel and alternately at predetermined intervals. The negative electrode plate 3 and the negative electrode plate 3 are high-voltage power supplies as voltage applying means for applying positive and negative high voltages to the positive electrode plate 1 and the negative electrode plate 2, respectively.

According to the above configuration, when a high voltage is applied to the positive electrode plate 1 and the negative electrode plate 2, when fine particles such as dust pass between these electrode plates, the particles are charged by the action of electrostatic force. The dust is collected by being sucked by the electrode plate.

[0004]

[Problems to be solved by the device]

 In the conventional dust collecting cell, as described above, the positive electrode plate 1 and the negative electrode plate 2 are connected so that the electrode plates having the same potential are connected in parallel, so that a high voltage can be applied. A charge determined by Q = C · V is stored between the electrode plates, as in a capacitor using air as a dielectric.

In this state, if a large amount of dust or the like enters between any one of the pair of electrode plates composed of the positive electrode plate 1 and the negative electrode plate 2, dielectric breakdown occurs at the dust portion, and the electrode plate The electric charge stored between the electrodes was discharged, and the electric charge stored between the other electrode plates was also discharged through the part where the dielectric breakdown occurred, resulting in a very loud noise. .

In order to prevent such dielectric breakdown, conventionally, as shown in FIG. 5, by coating an electrode plate having a polarity on one side, for example, the positive electrode plate 1 with an insulating resin 4, a withstand voltage is increased. It has been proposed to raise it.

However, in this method, the reliability of the insulating resin 4 becomes a problem. That is, pinholes in the insulating resin material, scratches during production and use during cleaning work, deterioration due to cleaning chemicals such as strong alkaline liquids, deterioration due to ozone generated by high voltage application, and propagation to dirty parts deposited on cells. There was a problem such as deterioration by illuminating the cell with a germicidal lamp using ultraviolet rays to sterilize the bacteria.

The present invention has been made to solve the above problems, and provides a dust collecting cell that is small in discharge scale, has a small discharge sound, is versatile, and is easy to manufacture. It is an object.

[0009]

[Means for Solving the Problems]

 The dust collecting cell according to the present invention includes a plurality of second electrode plates arranged with spaces between first electrode plates arranged with holes formed on the same axis. A short cylindrical high resistance spacer interposed between the first plurality of electrode plates in conformity with the hole, and a position of the high resistance spacer inserted into the high resistance spacer through the hole. A structure including an insulating column body for preventing displacement and a voltage applying unit for applying a high voltage between the first plurality of electrode plates and the second plurality of electrode plates via the high resistance spacers. Is.

[0010]

[Action]

 The dust collecting function of the dust collecting cell in the present invention is performed by the electrostatic force due to the high voltage applied between the first and second electrode plates, and it is not necessary to pass a current. By applying a high voltage through the high-resistor spacer, the discharge current can be suppressed and the dust collection function can be performed without any trouble.

Further, since the first plurality of electrode plates are assembled by interposing the high resistance spacers respectively, the first electrode plates can be applied to air cleaners of various electrode plate numbers without being restricted by the number of electrode plates. It is versatile, and since the high resistance spacer can be manufactured without large equipment, it is suitable for manufacturing a special size dust collection cell for small volume production and is easy to manufacture.

[0012]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a block diagram showing the principle of the present invention. The same parts as those in FIG. 4 are designated by the same reference numerals and the description thereof will be omitted. In FIG. 1, reference numeral 5 denotes a short cylindrical high resistance spacer interposed between the first plurality of electrode plates 1 and electrically connected to the electrode plates 1. Then, a high voltage is applied from the high voltage power supply 3 between the first and second electrode plates 1 and 2.

According to the above configuration, if dielectric breakdown occurs at point a in the figure, for example, only the charges stored between the pair of positive electrode plate 1 and negative electrode plate 2 facing the point a are stored. The high-resistance spacer 5 prevents the electric charges between the other electrodes from being discharged and does not reach the point a.

Therefore, the discharge is locally small-scaled only at the point a, and the discharge noise is small. Further, the dust collecting action is performed by the electrostatic force due to the high voltage applied from the high-voltage power supply 3, and it is not necessary to pass a current. There is no.

2 and 3 show an embodiment to which the principle of FIG. 1 is applied. In FIG. 2 and FIG. 3, the high resistance spacer 5 is, for example, a conductive material having a specific resistance of 10 ⁵ to 10 ¹⁰ Ω. It is made of resin. Reference numeral 6 denotes an outer frame composed of both side plates 6a and 6b and upper and lower plates 6c and 6d, and at least both plates 6a and 6b are conductive members. A large number of grooves 7 are provided on one side plate 6a at substantially equal intervals, and a contact piece 8 is provided on the other side plate 6b at a substantially intermediate portion.

First, the outer frame 6 is assembled by screwing the abutting portions of the side plates 6a and 6b and the upper and lower plates 6c and 6d with screws 9. Next, one end of each of the first plurality of electrode plates 1 is press-fitted into the groove 7 every other one, and one end of each of the second plurality of electrode plates 2 is press-fitted into each other groove 7. Now, the second electrode plates 2 are arranged between the first electrode plates 1 with spaces in between.

Then, the free end side of the first electrode plate 1 is set in the holes 1a provided in the respective electrode plates, and the short cylindrical high resistance spacers 5 are interposed between the electrode plates, and A short cylindrical insulator spacer 10 is provided between the plates 6c and 6d and the electrode plate 1, and the insulating pillar 11 is inserted through the hole 1a of the electrode plate 1 into the high resistance spacer 5 and the insulator spacer 10. The upper and lower ends are fixed to the upper and lower plates 6c and 6d with screws 9. In this case, if the thickness (height) of the high-resistor spacer 5 is set to be slightly larger than the electrode plate interval, the both ends of the high-resistor spacer 5 will be attached to each other by the tightening force of the screw 9 during assembly. Due to the elasticity of the spacer, the spacer firmly adheres to the first electrode plate 1 to ensure electrical conduction.

Further, on the free end side of the second electrode plate 2, a short-tube-shaped conductor spacer 12 that is inserted into the hole 1 b of the first electrode plate 1 is provided in each electrode plate 2 (see FIG. (Not shown) so as to be interposed between the electrode plates, the insulator spacer 10 is provided between the upper and lower plates 6c and 6d and the electrode plate 2, and a conductor spacer is provided through the hole of the electrode plate 2. 12 and the upper and lower ends of the insulating column body 11 inserted through the insulating spacer 10 are fixed to the upper and lower plates 6c and 6d with screws 9.

In the above structure, by connecting the high-voltage power supply 3 between the contact piece 8 and the conductor spacer 12, the first and second electrodes are connected via the high-resistor spacer 5 with which the contact piece 8 contacts. A high voltage is applied between the plates 1 and 2 and the electrostatic force effectively collects dust.

In the above embodiment, the free end side of the second electrode plate 2 is fixed by the same structure as the free end side of the first electrode plate 1, but the side plate 6b of the outer frame 6 is provided with the side plate. A groove may be provided in the same manner as 6a, and the free end of the second electrode plate 2 may be press-fitted into and fixed to the groove.

[0021]

[Effect of the device]

 As described above, according to the present invention, since the high voltage is applied between the first and second electrode plates that are arranged to face each other through the space through the high resistance spacer, Even if a dielectric breakdown occurs between the plates, the discharge can be locally suppressed, so that the discharge noise can be reduced to about one tenth of the conventional level. Also, scratches and deterioration do not pose a performance problem, unlike the conventional one in which the electrode plate is covered with an insulating resin.

Furthermore, since the first plurality of electrode plates are assembled by interposing the high resistance spacers, the first plurality of electrode plates are not limited by the number of electrode plates and can be applied to air cleaners of various electrode plates. It is possible and versatile, and since the high resistance spacer can be manufactured without large equipment, it is suitable for manufacturing a special size dust collection cell for small volume production, and it is easy to manufacture. .

[Brief description of drawings]

FIG. 1 is a block diagram showing the principle of a dust collecting cell according to the present invention.

FIG. 2 is a configuration diagram showing an embodiment to which a dust collecting cell according to the present invention is applied.

FIG. 3 is an enlarged view of a main part of FIG.

FIG. 4 is a configuration diagram of a conventional dust collection cell.

FIG. 5 is a configuration diagram of a conventional dust collection cell.

[Explanation of symbols]

 1 First Electrode Plate 1a Hole 2 Second Electrode Plate 3 High Voltage Power Supply (High Voltage Applying Means) 5 High Resistor Spacer 11 Insulating Column

Claims (1)

[Scope of utility model registration request] 1. A first plurality of electrode plates arranged by arranging the formed holes on the same axis, and a second plurality of electrode plates arranged by a space between the first plurality of electrode plates. A plurality of electrode plates, a short-cylindrical high-resistor spacer interposed between the first plurality of electrode plates in conformity with the holes, and inserted into the high-resistor spacers through the holes; An insulating column body for preventing displacement of the high resistance spacer, and a voltage applying means for applying a high voltage between the first plurality of electrode plates and the second plurality of electrode plates via the high resistance spacer. Dust collection cell with and.