JPH0551459U - Electrostatic air purifier - Google Patents

Abstract

(57) [Summary] [Purpose] When removing a used dust collector and installing a new dust collector, make sure that your hands do not get injured by touching the ionization electrode. [Structure] A semicircular strip plate 6 is provided around the dust collecting paper fixing plate 2 with a space 5 therebetween, and a large number of partition walls 7 are vertically projected at equal intervals on the inner surface of the strip plate 6. And each partition wall 7
On the lower part of the strip plate 6 in between, a mounting protrusion 9 for protruding the electrode plate 11 is provided with a gap 8 therebetween. Ionizing electrode 10
Is a plurality of strip-shaped electrode plates 11 at the same intervals as the partition walls 7.
And the electrode plate 11 is fitted in the space 8 so that each ionization electrode 10 is located between each partition wall 7, and the upper end edge of each ionization electrode 10 is each partition wall. 7 is disposed at a position lower than the upper end surface 7a.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to an electrostatic air purifying device including an electrode for ionizing particles such as dust and an electrode for attaching ionized particles.

[0002]

[Prior Art]

 As a conventional electrostatic air cleaner, the one disclosed in Japanese Patent Laid-Open No. 2-198650 is known.

[0003]

[Problems to be solved by the device]

 In the conventional electrostatic air purifying apparatus described above, a plurality of ionizing electrodes 10 are only provided on the supporting portion 13 a so as not to cover the ionizing electrodes 10. In addition, there is a problem in that the ionization electrode 10 having a sharp needle-like tip is touched by the hand and injured.

The present invention is intended to provide an electrostatic air purifier that solves the above-mentioned conventional problems.

[0005]

[Means for Solving the Problems]

 According to the present invention, an ionization electrode is provided on the lower surface of the dust collecting paper fixing plate, and the first and second dust collecting electrodes are parallel to each other in two steps at intervals on the outer peripheral surface of the dust collecting paper fixing plate. In a fixed electrostatic air cleaning device, a semicircular strip is provided around the front surface of the lower surface of the dust collecting paper fixing plate, and a large number of semicircular strips are equally spaced on the inner surface of the strip. The partition walls of the partition wall are vertically projected, and the ionization electrode is arranged and fixed between the partition walls such that the upper edge of the partition wall is located lower than the upper end surface of each partition wall. Solved the problem.

[0006]

According to the present invention having the above-mentioned configuration, when the used dust collecting paper is removed and a new dust collecting paper is attached, the hands or the like do not touch the tip of the ionization electrode.

[0007]

【Example】

 An example of the embodiment of the present invention will be described in detail with reference to the drawings. A dust collecting paper fixing plate 2 having a semicircular front surface and a back surface of the dust collecting paper fixing plate 2 are provided on an upper portion of a support 1. A holding body 4 is integrally provided with a back plate 3 which is taller than the paper collecting plate fixing plate 2 and has a wide width.

On the front side of the lower surface of the dust collecting paper fixing plate 2 on the support base 1, a semi-circular band plate 6 is provided around the dust collecting paper fixing plate 2 with a space 5 between the dust collecting paper fixing plate 2 and the dust collecting paper fixing plate 2. A large number of partition walls 7 extending from the upper edge of the strip plate 6 to almost the central portion are vertically projected at equal intervals on the inner side surface of the strip plate 6, and at the lower portion of the inner side surface of the strip plate 6 between the partition walls 7. An ionizing electrode (cathode) 10 having a sharpened needle-like upper end is provided so as to project a mounting projection 9 for mounting an electrode plate 11 which will be described later in the recess 8 and to facilitate corona discharge. A plurality of strip-shaped electrode plates 11 are provided at the same intervals as each partition wall 7 so as to project. Further, the electrode plates 11 are laterally fitted into the recesses 8 of each partition wall 7, and the electrode plates 11 are placed. The ionization electrodes 10 are placed on the projections 9 to locate the ionization electrodes 10 between the partition walls 7, while the upper edge of each ionization electrode 10 is moved forward. The partition walls 7 are arranged at positions lower than the upper end surface 7a.

A strip-shaped first dust collecting electrode (positive electrode) 12 is fixed to the lower portion of the outer peripheral surface of the dust collecting paper fixing plate 2 and is spaced from the first dust collecting electrode 12. Then, on the outer peripheral surface of the dust collecting paper fixing plate 2 in the upper part, a second dust collecting electrode (anode) 13 formed to be wider than the first dust collecting electrode 12 is formed. They are fixed, and a voltage of the same potential is applied to the first and second dust collecting electrodes 12 and 13, respectively. On the other hand, a voltage of lower potential is applied to the ionization electrode 10 than the dust collecting electrodes 12 and 13.

Then, a sheet-shaped dust collecting paper 14 such as a paper towel is attached to the front side of the first and second dust collecting electrodes 12 and 13 of the dust collecting paper fixing plate 2, and the sheet-shaped collecting paper 14 is attached. The means for attaching the dust paper 14 is not particularly limited, but preferably, as shown in FIGS. 4 to 6, the upper and lower ends of the left and right sides of the sheet-like dust collection paper 14 are attached to the dust paper fixing plate 2. It is recommended that the press-contacting stoppers 15 be fixed to the upper and lower portions of both sides of the dust collecting paper fixing plate 2.

The stopper 15 is provided with a pressure contact surface 18 for pressing the dust collecting paper 14 against a pair of shaft support plates 17 protruding from the step portions 16 protruding on both sides of the dust collecting paper fixing plate 2, The pressing piece 19 in the shape of a bow is pivotally supported by the shaft 20, and the pressing surface 21 at the base end portion of the pressing piece 19 is pressed by the pressing leaf spring 22 protruding between the shaft supporting plates 17, The pressure contact surface 18 is formed so that it can strongly press against the dust collecting paper 14 (FIG. 4).

When the dust collecting paper 14 is detached, the pressing piece 19 is rotated outward with the shaft 20 as a fulcrum against the pressing leaf spring 22 (FIG. 5), and the base end upper surface 19a of the pressing piece 19 is When pressed by the pressing leaf spring 22, the pressing piece 19 stops at the open position (FIG. 6).

Then, the used dust collecting paper 14 is removed, a new dust collecting paper 14 is disposed on the front surface of each dust collecting electrode 12, 13, and then the pressing piece 19 is rotated inward with the shaft 20 as a fulcrum. It is sufficient to move the pressure contact surface 18 to the dust collecting paper 14 so as to be fixed thereto (FIG. 4). When removing the used dust collecting paper 14 and installing a new dust collecting paper 14, each ionization electrode 10 is Between the partition walls 7 of the strip plate 6, its tip is arranged at a position lower than the upper end surface 7a of each partition wall 7, and hands or the like do not touch each ionization electrode 10. There is no danger of

A cover 24 having a large number of slits 23 serving as air passages is provided on the front surface of the strip plate 6 to which the dust collecting paper fixing plate 2 and the ionizing electrode 10 are attached.

Next, the operation of the embodiment will be described. For example, −7 kV is applied to the ionization electrode 10, and the same voltage, for example, +7 kV is applied to the first and second dust collecting electrodes 12 and 13. It When the potentials of the ionization electrode 10 and the first and second dust collecting electrodes 12 and 13 are set as described above, a power line from the ionization electrode 10 to the first and second dust collecting electrodes 12 and 13 is generated, which causes Ion wind is generated from the ionization electrode 10 toward the first and second dust collecting electrode plates 12 and 13.

On the other hand, since the ionization electrode 10 has a needle shape with a sharp tip, a corona discharge is relatively easily started toward the dust collecting electrodes 12 and 13 by a high voltage, and a gas generated by the corona discharge is generated. When dust comes into contact with ions or electrons, the dust becomes negatively charged. The negatively charged dust (ionized dust) moves toward the first and second dust collecting electrodes 12 and 13 having a higher potential than the ionization electrode 10. Since the first and second dust collecting electrodes 12 and 13 are covered with the dust collecting paper 14, the dust does not directly adhere to the first and second dust collecting electrodes 12 and 13 but adheres to the dust collecting paper 14. . At this time, dust first adheres to the dust collecting paper 14 near the first dust collecting electrode 12 close to the ionization electrode 10, but cannot adhere to the dust collecting paper 14 near the first dust collecting electrode 12. The dust is located higher than the first dust collecting electrode 12, is captured by the second dust collecting electrode 13 having a large area, and is attached to the dust collecting paper 14 in the vicinity thereof. The adhesion rate is high.

When the amount of dust adhering to the dust collecting paper 14 increases and the dust collecting function deteriorates, the fixing state of the dust collecting paper 14 by the stopper 15 is released and removed, and a new dust collecting paper 14 is removed. The stoppers 15 may be pressed against the front surfaces of the first and second dust collecting electrodes 12 and 13 to mount them.

[0018]

[Effect of the device]

 Since the present invention is as described above, when the used dust collecting paper is removed and a new dust collecting paper is attached, the tip of each ionizing electrode is positioned between the partition walls of the strip and lower than the upper end surface of each partition wall. Since it is arranged at a position and hands do not touch each ionization electrode, there is no risk of injury.

[Brief description of drawings]

FIG. 1 is an exploded perspective view of an electrostatic air purifier according to the present invention.

FIG. 2 is an exploded perspective view of the electrode plate attached to the strip plate in the electrostatic air purifier of the present invention.

FIG. 3 is an enlarged vertical sectional view of a band plate and a dust collecting paper fixing plate portion in the electrostatic air purifier of the present invention.

FIG. 4 is an enlarged cross-sectional view of a stopper portion when the dust collecting paper is attached to the dust collecting paper fixing plate in the electrostatic air purifier of the present invention.

FIG. 5 is an enlarged cross-sectional view of the stopper portion of the electrostatic air purifier of the present invention showing a state in which the pressing piece of the stopper is being opened in order to replace the dust collecting paper.

FIG. 6 is an enlarged cross-sectional view of the stopper portion when the dust collecting paper is removed in the electrostatic air purifier of the present invention.

[Explanation of symbols]

2 Dust collecting paper fixing plate, 6 strip plate, 7 division wall, 10
Ionizing electrode, 12 First dust collecting electrode, 13 Second dust collecting electrode.

Claims (1)

[Scope of utility model registration request] 1. An ionization electrode is disposed on the lower surface of the dust collecting paper fixing plate, and the first and second dust collecting electrodes are parallel to each other in two steps at intervals on the outer peripheral surface of the dust collecting paper fixing plate. In the fixed electrostatic air cleaning device, a semicircular strip plate is provided around the lower surface front side of the dust collecting paper fixing plate with a space, and a large number of equidistant spaces are formed on the inner surface of the strip plate. Electrostatic air cleaner characterized in that partition walls are vertically projected, and ionization electrodes are arranged and fixed between the partition walls with their upper edges positioned lower than the upper end surface of each partition wall. apparatus.