JPH08117637A - Electrostatic precipitation element - Google Patents

Abstract

PURPOSE: To prevent the tension impeding the maintenance of parallel spacing from acting to keep the parallel spaces of the adjacent element pieces well in a continuous part for making the adjoining element pieces be in succession to each other. CONSTITUTION: After element piece 10, 20 are once bended at an acute angle over a right angle to an orthogonal bent part 7 to leave a folding line on a mount, they are returned to a right angle and corrected, and their vertically thereof are maintained well without the folding part being freely opened in a natural state. Based on the length of the orthogonal bent part 7 whose verticality is maintained well, spacings between adjacent elements 10, 20 are set to maintain their parallel spacings well.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electrostatic precipitator element which is used by incorporating it into an air cleaner, an air conditioner or the like.

[0002]

2. Description of the Related Art Conventionally, generally, an electrostatic precipitating element has an ionizing section for positively or negatively charging dirt particles in the air,
It consists of a dust collector that collects and attaches the charged dirt particles, and the dust collector to which the dirt particles adhere is designed to be disposable without the need for cleaning, which is convenient for the user or service person. It has been devised.

An example of such a device is disclosed in Japanese Utility Model Laid-Open No. 1-174056. As shown in FIG. 12, this has a first element piece A formed by patterning a positive side or negative side dust collecting portion first electrode V on a mount P, and a polarity on the other side on the mount P as well. The second part of the second electrode G, which is the dust collecting part, is patterned
The element pieces B are alternately provided, and these element pieces A and B are connected to each other through a plurality of narrow connecting pieces R provided at intervals in the depth direction of the paper surface, and project on the plane of each mount P. The spacer protrusions S and the positioning protrusions T maintain the parallel distance between the front and back element pieces A and B.

Thus, mainly by patterning the electrodes A and B on the mount P and continuously forming the two kinds of element pieces A and B through the connecting piece R, the cost reduction is realized and the time is reduced. If it becomes dirty during use, the entire product is discarded and replaced with a new one, which is suitable for single-use specifications.

[0005]

However, in the above-mentioned conventional example, basically, the parallel interval between the element pieces A and B is determined by the height of the spacer projection S protruding from the mount P. The connecting piece R merely connects the element pieces A and B on the front and back sides to each other, and the concrete structure of the connecting piece R is that the bent portion b has an acute angle with one mountain fold line at the center top.
Alternatively, the bent portion c has an arc shape.

Therefore, as shown in FIG. 13 (b) or 13 (c), the element piece A on the front and back sides, with the connecting piece R as the center,
The tension f that tries to push apart the interval of B acts and the shape retaining force that keeps the element pieces A and B in parallel cannot be applied to the connecting piece R itself. There is a problem that is difficult to maintain well. Therefore, it is necessary to apply an appropriate pressing force from above and below in the stacking direction of the element pieces A and B, and the final holding structure becomes complicated, and the spacer protrusion S may buckle depending on the pressing force. However, if the number of projections is increased in order to avoid buckling, there is also a problem that the passage resistance of air increases and the pressure loss increases.

According to the present invention, it is possible to prevent the tension which hinders the maintenance of the parallel spacing between the element pieces from acting in the continuous portion where the adjacent element pieces are continuous with each other, and to improve the parallel spacing between the adjacent element pieces. Its main purpose is to provide an electrostatic precipitator element that can be retained.

[0008]

In order to achieve the above-mentioned main object, the invention according to claim 1 is formed by patterning electrodes 1 and 2 of one side polarity on a mount as shown in FIG. The first element piece 10 and the second element piece 20 formed by patterning the electrode 3 of the other side polarity on the mount are respectively bent at right angles to the respective element pieces 10 and 20 through orthogonal bending portions 7. The element pieces 10 and 20 that are adjacent to each other are alternately arranged, and the interval between the adjacent element pieces 10 and 20 is set based on the length of the orthogonal bending portion 7.

According to a second aspect of the present invention, in the first aspect of the invention, adjacent element pieces 1 are provided while ensuring a space in both the vertical direction and the width direction of each element piece 10, 20.
In order to maintain a good parallel spacing of 0 and 20, the orthogonal bending portion 7 is bent in parallel along one side on the upper and lower sides in the air flow direction, and the second element piece 20 adjacent to the first element piece 10 is folded. And a plurality of first strip-shaped connecting pieces 71 that continuously connect with each other, and the second element piece 20 and the first element piece 10 in the next row, which are bent in parallel along one side on the upper and lower sides in the air flow direction. A plurality of second strip-shaped connecting pieces 72 that are continuously connected in a scattered manner is used.

According to a third aspect of the present invention, in the second aspect of the invention, since the parallel spacing between the adjacent element pieces 10 and 20 is favorably maintained by the minimum number of connecting pieces, the first strip-like connecting piece 71 is The second strip-shaped connecting piece 7 is composed of end pieces 71a and 71b located at both ends in the width direction of the element pieces 10 and 20 and an intermediate piece 71c located in the middle in the width direction.
2 is composed of end pieces 72a and 72b located at both ends in the width direction of each element piece 10 and 20, and an intermediate piece 72c located in the middle in the width direction.

According to a fourth aspect of the invention, in the invention according to any one of the first to third aspects, in order to facilitate bending of the orthogonal bending portion 7 and obtain a good squareness thereof, A round hole 70 is formed at the end of the bending line between the orthogonal bending portion 7 and each of the element pieces 10 and 20.

[0012]

In the invention according to claim 1, the orthogonal bent portion 7 is provided.
Is bent in an orthogonal manner to each of the element pieces 10 and 20, and is between the first element piece 10 and the orthogonal bending portion 7, and between the second element piece 20 and the orthogonal bending portion 7. There will be a total of two right-angled folding lines in between. Therefore, as shown in FIG. 13 (a), the first element piece 10 is once bent at an acute angle beyond the right angle with respect to the orthogonal bending portion 7 (state 10A), and after a crease is formed on the backing sheet. Since it can be returned to a right angle to correct it, in its natural state, the squareness can be favorably maintained without opening the bent portion. Similarly, the second element piece 20 can be bent at a right angle to the orthogonal bending portion 7 once beyond a right angle (state 20A), and after having a crease on the mount, it can be returned to the right angle for correction. Therefore, in the natural state, the perpendicularity can be maintained well without the bent portion opening. In this way, the distance between the adjacent element pieces 10 and 20 is set based on the length of the orthogonal bent portion 7 in which the perpendicularity is kept good in this way, so that the element pieces 10 and 20 are parallel to each other. The space can be maintained well.

According to the second aspect of the present invention, the first strip-shaped piece 71 constituting the orthogonal bending portion 7 is bent in parallel along one side on the upper and lower sides in the air flow direction, and the first element piece 1 is formed.
A plurality of second element pieces 20 adjacent to each other are continuously connected to each other, and adjacent first strip-shaped connecting pieces 7
A space can be secured between 1,71. Similarly, the second strip-shaped piece 72 forming the orthogonal bending portion 7 is bent in parallel along one side of the upper and lower sides in the air flow direction, and the second element piece 20 and the first element piece 10 of the next row are formed. The second strip-shaped connecting pieces 7 that are adjacent to each other
A space can be secured between the two and 72. Therefore, the air passages can be favorably secured in the vertical direction of the element pieces 10 and 20, and the entire widthwise ends of the element pieces 10 and 20 which are not faced by the strip-shaped connecting pieces 71 and 72 are opened.
It is possible to irradiate ultraviolet rays for sterilization. In this way, each band-shaped connecting piece 7 that is bent at a right angle while ensuring a gap in both the vertical direction and the width direction of each element piece 10 and 20.
1, 72 allows the parallel spacing between the adjacent element pieces 10 and 20 to be favorably maintained.

According to the third aspect of the invention, the adjacent element pieces 10 and 20 are spaced at both ends in the width direction by the left and right end piece pieces 71a and 72a or 71b and 72b, and at the middle portion thereof. , Middle piece 71
The distance is determined by c or 72c. The parallel spacing between the adjacent element pieces 10 and 20 can be satisfactorily maintained by the minimum number of connecting pieces, which is a total of three pieces, that is, the both end portions and the intermediate portion.

According to the fourth aspect of the invention, since the orthogonal bending portion 7 is bent along the bending line connecting the round holes 70,
The element piece 1 can be bent easily.
The perpendicularity between 0 and 20 and the orthogonal bending portion 7 can be made excellent.

[0016]

EXAMPLE FIG. 11 is a ceiling cassette type air purifier in which two electrostatic precipitating elements 500 according to the present invention are incorporated, and has a decorative plate 501 having a suction port 502 and a blow port 503 at the bottom. Inside the main body casing 504, an antibacterial prefilter 505 for removing relatively large dust in advance,
The dust collecting elements 500, 500 and the respective elements 5
Ultraviolet lamps 506 and 50 for sterilizing irradiation from the side of 00
6, an ozone decomposition catalyst 507 made of activated carbon and the like, and a fan 508 for circulation are provided.

As shown in FIG. 1, the electrostatic precipitator element 500 includes a first element piece 10 having electrodes 1 and 2 connected to a ground on the positive side with respect to a negative high voltage,
A plurality of second element pieces 20 having electrodes 3 connected to a negative high voltage are alternately arranged in parallel. The first element piece 10 has a pair of left and right ionization section counter electrodes 1 and 1 on the upstream side in the air flow direction, and a linear dust collecting section first electrode 2 on the slightly downstream side thereof. ，
Both 1 and 2 are patterned on both the front surface and the back surface of the mount P by double-sided printing of a carbon-containing conductive paint. The second element piece 20 is the first element piece 1
0 has its front surface facing the back surface of 0, and further has a line-shaped dust collecting portion second electrode 3 further downstream of the dust collecting portion first electrode 2. For the above, a pattern is formed by double-sided printing of a conductive paint containing carbon. 2h and 3h are through-holes that are opened before double-sided printing of the conductive paint. The double-sided printing of the conductive paint is performed on the mount P in which the through-holes 2h and 3h are opened, and the electrodes on the front and back sides are printed. They are in conduction with each other.

The left and right ionizing portion counter electrodes 1 and 1 and the line-shaped dust collecting portion first electrode 2 in the first element piece 10 have short connecting patterns 4 on both the front surface side and the back surface side of the mount P. 4 are connected to each other. The connecting patterns 4 and 4 are also formed by double-sided printing of a conductive paint containing carbon.

As shown in FIG. 2, the mount P is made of a long sheet of electrically insulating paper having a thickness of several millimeters to several millimeters, for example, 0.38 mm, which is long in the vertical direction.
The element pieces 10 and 20 are alternately and continuously formed by bending the element pieces 10 and 20 in an orthogonal manner in accordance with a mountain fold line shown by a dotted line and a valley fold line shown by a one-dot chain line in FIG. The distance between the adjacent element pieces 10 and 20 is set based on the length of the orthogonal bent portion 7.

The orthogonal bending portion 7 is mountain-folded along one side of the first element piece 10 located on the upstream side in the air flow direction, and the adjacent second element pieces 20 are continuously connected in the width direction of the mount P. A plurality of first strip-shaped connecting pieces 71,
The second element piece 20 located on the downstream side in the air flow direction
A plurality of second strip-shaped connecting pieces 72, which are valley-folded along one side and continuously connect the adjacent first row element elements 10 in the next row in the width direction of the mount P. The first strip-shaped connecting piece 71 is made up of three pieces including left and right end pieces 71a, 71b and an intermediate middle piece 71c. Similarly, the second strip-like connecting piece 72 is the left and right end pieces 72a in the width direction. 72b and an intermediate intermediate piece 72c.

Further, at the end of each bending line, a round hole 70 consisting of small punch holes is opened in order to facilitate bending and to make a right angle.

Further, on the upstream side in the air flow direction of each of the element pieces 10 and 20, a cut line 71d is formed between the left end piece 71a and the intermediate piece 71c of the first strip-shaped connecting piece 71. , And a cut line 71e inserted between the right end piece 71b and the intermediate piece 71c, each having a width corresponding to the span between both ends of each of the cut lines 71d and 71e. First flat pieces 73, 73 forming the same plane as the element piece 10 are provided. Similarly, on the downstream side in the air flow direction of each of the element pieces 10 and 20, the score line 7 that is inserted between the left end piece 72a and the intermediate piece 72c of the second strip-shaped connecting piece 72.
2d, and a cut line 72e inserted between the right end piece 72b and the intermediate piece 72c, each having a width corresponding to the span between both ends of each cut line 72d, 72e, Second flat pieces 74, 74 forming the same plane as the one element piece 10 are provided.

The first flat pieces 73, 73 have a relatively large vertical length, and the cut lines 71d, 71e corresponding to these portions cut into the plane of the second element piece 20. The second element piece 20 is provided with a steal portion 23 having a size corresponding to the extension portion 73a provided on the upper end of the first flat piece 73 on the upstream side in the air flow direction.

The ionizing portion counter electrode 1 is patterned on the first flat piece 73 thus secured.

Although the second flat piece 74 is provided on the same plane as the first element piece 10, it may be provided on the same plane as the second element piece 20.

Next, the terminal structure of each of the electrodes 1 to 3 will be described. The common terminal portion 5 of the ionization portion counter electrode 1 and the dust collecting portion first electrode 2 included in the first element piece 10 is taken out from the left side of the dust collecting portion first electrode 2, and the left side in the width direction of the mount P. The left end piece 71a of the first strip-shaped connecting side 71 located on the upper side in the height direction is patterned.
Also, the second electrode 3 of the dust collecting portion provided on the second element piece 20.
The terminal portion 6 is taken out from the right side and is patterned on the right end piece 72a of the second strip-shaped connecting side 72 located on the right side in the width direction of the mount P and on the lower side in the height direction. still,
Each of these terminal portions 5 and 6 is formed by double-sided printing of a conductive paint on the mount P, similarly to the electrodes 1, 2 and 3.

In addition, the terminal portions 5 and 6 are formed by interposing the end pieces 71a and 72b forming the terminal portions 5 and 6 on the surfaces of the first element piece 10 and the second element piece 20 located on both sides to form a pattern. To improve the contact with the conductive cushion 91 described later.

Then, after adopting such a terminal structure, the pattern length on the right side of the dust collecting portion first electrode 2 is shortened,
A span is secured between the pattern end portion 21 on the side opposite to the terminal portion of the first electrode 2 and the terminal portion 6 on the right side, which is the opposite pole to the first electrode 2, to prevent a flashover. Similarly, the pattern length on the left side of the second electrode 3 of the dust collecting portion is shortened so that the pattern end 31 on the side opposite to the terminal of the second electrode 3 and the second electrode 3
And a left terminal portion 5 which is the opposite pole, a span is secured to prevent flashing.

In this way, the mount P of FIG. 2 constructed as described above is folded along the mountain fold line and the valley fold line, and as shown in FIG. 1, the element pieces 10 and 20 are arranged alternately in parallel. is there.

At the time of this bending, or at the time of holding the state after the bending, a jig 600 as shown in FIG.
To use. The jig 600 includes a substrate 601 and a tall support plate 602 that receives the back surface of the first strip-shaped connecting piece 71.
The short side support plates 603 for escaping the second flat pieces 74 are alternately arranged side by side, and the perpendicularity of the bent portions of the element pieces 10 and 20 and the parallel spacing of the element pieces 10 and 20 can be excellently obtained. I am trying.

In the state shown in FIG. 3, the first strip-shaped connecting piece 71 is sandwiched between the recesses 81 for receiving the upper ends of the adjacent element pieces 10 and 20, and the first strip-shaped connecting piece 71 is adjacent to the recessed portion 81. The interval holding holder 8 having a convex portion 82 that protrudes into the gap between the matching element pieces 10 and 20 is formed, and this holder 8 is inserted from above.

The holder 8 includes left and right end pieces 71a and 71b and a middle piece 71c of the first strip-shaped connecting piece 71.
Corresponding to the above, three pieces are inserted from the upper part, and each holder 8 is provided with a narrow main body 80 corresponding to each connecting piece 71a, 71b, 71c.

After the holder 8 has been inserted into the first strip-shaped connecting piece 71, the element is removed from the jig 600, and the second strip-shaped connecting piece 72, which is the opposite side, is similarly left and right. The three spacing holders 8 are inserted in correspondence with the end pieces 72a, 72b and the intermediate piece 72c.

At least of the space holders 8,
End pieces 71a, 72 for forming the terminal portions 5, 6 on their end faces
As for the element to be inserted into the b, as shown in FIG.
Holds a conductor 9 made of a long aluminum plate or the like and a conductive cushion 91 made of conductive urethane or the like extending in the juxtaposed direction. The conductive cushion 91 is projected from the end surface of the recess 81 of the spacing holder 8, so that when the spacing holder 8 is inserted into the element side, the terminal portions 5 and 6 are satisfactorily pressed against the conductor 9 side. It has become.

In order to make the parts common, the holder 8 which is inserted into the end pieces 71b, 72a and the intermediate pieces 71c, 72c having no terminals is similarly provided with the groove 8 in the main body 80 thereof.
0a is provided. In this case, a dummy cushion may be inserted in the groove 80a, or in order to eliminate the distinction at the time of assembly and to facilitate the manufacturing control, the terminal portions 5, 6
The configuration may be exactly the same as the insertion side.

The convex portion 82 provided on the space holding holder 8 is
Comprising a pair of convex pieces 82a, 82b sandwiching the groove 80a,
The convex pieces 82a, 82b are provided on the convex pieces 82a, 82b.
Is provided with a slit-shaped missing portion 84 for laterally opening the gap between the element pieces 10 and 20 at the protruding portion of
Irradiation of the ultraviolet lamp 506 from the side shown in FIG. 11 is made to reach the entire gap satisfactorily. Also, each convex piece 82
At the tips of a and 82b, inclined cut portions 82c are provided to improve the insertability of the element pieces 10 and 20 into the gaps.

As shown in FIG. 5, projections 83, 83 are provided on the contact portions of the convex portions 82 of the spacing holder 8 with the element pieces 10, 20, and the element pieces 10, 20 are provided with the projections 83, 83. It is also preferable to provide a receiving hole 30 for receiving 83 so as to prevent the holder 8 and the element pieces 10 and 20 from coming off and to maintain the inserted state of both of them well.

As shown in FIG. 6, butt pieces 85 and 85 are provided at both ends of the space holder 8, and the upper and lower holders 8 and 8 are butted to each other through the butt pieces 85 to attach the element. It is formed in a box shape to retain its shape.

The butting piece 85 comprises a first member 85a extending from both ends of the spacing holder 8 toward the butting portion, and a second member 85b extending outward from the first member 85a. Second member 8 prepared for 8
5b and 85b are bundled and fitted into a fitting hole 910 provided in the end plate 900 arranged outside the element pieces 10 and 20.

The finished product shown in FIG. 6 is essentially the ionization section 1 in the dust collection section 200 having the electrodes 2 and 3 on the dust collection section side.
The counter electrode 1 of the ionization section constituting the unit 00 is integrally modularized. Then, the modularized finished product is, as shown in FIGS. 7 and 8, an air inlet portion 40.
1 and an outlet 402, and is supported by a box-shaped frame 400 framed by rivets 410.

In FIGS. 7 and 8, reference numeral 1A is a discharge electrode which constitutes the ionization section 100 by facing the ionization section counter electrode 1, and is the upstream side of the second element piece 20 and is adjacent to the first element piece. It is arranged on the center line of 10, 10. Further, the blade portion 1a having a large number in the width direction at the end
To the ionization part counter electrode 1.

Supporting portions 101 are provided at the four corners of the discharge electrode 1A constituting the ionizing portion 100. Dust collector 200
Of the second members 85b of the butting pieces 85 protruding at all six positions outside the end plate 900, four of the four corners are used as the supporting portions 201. Then, these supporting portions 101, 20
1 is coaxially attached to the four insulating insulators 300 supported at the four corners of the frame 400.

The insulator 300 is entirely formed of an insulating material such as phenol resin, and is composed of a first shaft portion 301 attached to the frame 400 and a second shaft portion 302 coaxially fitted on the first shaft portion 301. ing. Bolts 304 that are screw-fitted to the second shaft portion 302 are embedded in the first shaft portion 301, and bosses 305 that receive the bolts 304 are embedded in the second shaft portion 302. Thirty
The discharge electrode 1A forming the ionization part 100 is sandwiched between the fitting parts of 1,302. A bolt 306 is also embedded in the end of the second shaft portion 302, and the dust collecting portion 200 is attached via a nut 307.

At the lower end of the first shaft portion 301 of the insulator 300,
As shown in FIG. 9, a small-diameter annular recess 303 is provided, and the annular recess 303 is inserted into the U-shaped receiving grooves 403 provided at the four corners of the frame 400.

Next, the dust collecting action will be described with reference to FIG. When air containing fine particles or dirt particles d such as viruses, bacteria, or cigarette smoke enters, the blade portion 1a of the discharge electrode 1A, which has a negative high voltage, and the positive side ionization portion counter electrode 1, Due to the negative corona occurring between them, the dirt particles d are negatively charged. The negatively charged dirt particles d are collected in the dust collecting section first electrode 2 and the second electrode 3.
Due to the action of the electric field between and, it is adsorbed to the first element piece 10 having the positive first electrode 2. Thus
Finally, clean air containing almost no dirt particles d is taken out from the outlet side.

[0046]

As described above, according to the first aspect of the present invention, the adjacent element pieces 10 and 20 are connected to each other through the orthogonal bending portion 7, and the distance is based on the length of the orthogonal bending portion 7. Since the element pieces 10 and 20 are set, in the continuous portion where the adjacent element pieces 10 and 20 are continuous with each other,
It is possible to prevent a tension from interfering with the maintenance of the parallel spacing of the elements 20 from acting, and it is possible to maintain a good parallel spacing of the adjacent element pieces 10 and 20.

According to the second aspect of the invention, the first and second strip-shaped connecting pieces 71, 72 that are bent at right angles can be used to secure the spaces in both the vertical and width directions of the element pieces 10, 20 so that they are adjacent to each other. The parallel spacing between the matching element pieces 10 and 20 can be favorably maintained.

According to the third aspect of the invention, the end piece 71
a, 72a or 71b, 72b and the intermediate piece 71c
Alternatively, the parallel connection between the adjacent element pieces 10 and 20 can be satisfactorily maintained by the connecting pieces 72c that are small in three places.

According to the fourth aspect of the invention, the round hole 70 facilitates bending of the orthogonal bending portion 7, and
The perpendicularity between each of the element pieces 10 and 20 and the orthogonal bent portion 7 can be made excellent.

[Brief description of drawings]

FIG. 1 is a perspective view of a main part of an electrostatic precipitating element according to the present invention.

FIG. 2 is a development view of a pattern mount forming the same element.

FIG. 3 is a sectional view showing a first manufacturing process of the element.

FIG. 4 is a perspective view of a main part of the same spacing holder.

FIG. 5 is a sectional view of a main part showing another embodiment of the same spacing holder.

FIG. 6 is a side view showing the second manufacturing process of the element.

FIG. 7 is a sectional view showing an assembled state of the element.

FIG. 8 is a sectional view taken along the line a in FIG.

FIG. 9 is a perspective view of a main part of the insulator portion.

FIG. 10 is a sectional view for explaining the dust collecting action of the element.

FIG. 11 is a cross-sectional view of an air cleaner including the same element.

FIG. 12 is a sectional view of a conventional example.

FIG. 13 is an explanatory diagram for comparing operational effects of the present invention and a conventional example.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1; Ionization part counter electrode, 2; Dust collection part first electrode, 3; Dust collection part second electrode, 4; Connection pattern, 5, 6; Terminal part,
10; first element piece, 20; second element piece,
7; Orthogonal bent portion, 71; First strip-shaped connecting piece, 72; Second strip-shaped connecting piece, 71a, 71b, 72a, 72b; End piece,
71c, 72c; middle piece, 70; round hole

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Hachiro Kurokawa 1-1, Nishiichitsuya, Settsu-shi, Osaka Daikin Industries, Ltd. Yodogawa Works (72) Inventor Yasuo Sato 1-1, Nishiichitsuya, Settsu-shi, Osaka Daikin Industries Yodogawa Manufacturing Co., Ltd. (72) Inventor Kazuya Okada 1-1 Nishiichitsuya, Settsu-shi, Osaka Daikin Industries Co., Ltd. Yodogawa Manufacturing (72) Inventor Yoshihide Ito Nishiichitsuya, Osaka Prefecture Daikin Industrial Co., Ltd. Company Yodogawa Works

Claims (4)

[Claims] 1. A first element piece (10) formed by patterning electrodes (1, 2) of one side polarity on a mount and a second element piece (10) formed by patterning electrodes (3) of another side polarity on the mount. The element piece (20) and the element pieces (10,
Orthogonal bending part (7) that is bent orthogonally to 20)
And the adjacent element pieces (10,
The electrostatic precipitator element is characterized in that the interval of (20) is set based on the length of the orthogonal bent portion (7). 2. The orthogonal bending part (7) is bent in parallel along one side on the upper and lower sides in the direction of air flow, and the first bending element (10) and the second element piece (20) adjacent to the first element piece (10) are connected. A plurality of first strip-shaped connecting pieces (7
1) and a plurality of second second end pieces (20) and first element pieces (10) in the next row, which are bent in parallel along one side of the upper and lower sides in the direction of air flow and are continuous in a discontinuous manner. The electrostatic precipitator element according to claim 1, comprising a strip-shaped connecting piece (72). 3. The first strip-shaped connecting piece (71) is an end piece (7) located at both ends of each element piece (10, 20) in the width direction.
1a, 71b) and the intermediate piece (7
1c), the second strip-shaped connecting piece (72) is an end piece (72a, 72b) located at both ends in the width direction of each element piece (10, 20) and an intermediate piece located in the middle in the width direction. The electrostatic precipitator element according to claim 2, which comprises (72c). 4. An orthogonal bent portion (7) and each element piece (1).
(0,20) at the end of the fold line between
Claim 1 or Claim 2 or Claim 3 which is opened
The described electrostatic precipitator element.