JP3293354B2 - Dust collection part of electric dust collection element - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dust collecting portion of an electric dust collecting element, and more particularly, to a long and thin plate having different polarities alternately stacked in parallel to charge one polarity. The present invention relates to a dust collecting portion of an electric dust collecting element which collects collected dust by an electrode plate charged to the other polarity.

[0002]

2. Description of the Related Art Generally, this type of electrostatic precipitating element is
It is disposed downstream of the ionization section in the path of the air to be cleaned, and the ionization section previously converts dust contained in the air to be cleaned to one polarity (for example, a positive polarity). In addition to being charged, the dust charged by the dust collection unit is collected.

[0003] Such a dust collecting portion has an application electrode plate, a dust collecting electrode plate, and a spacer interposed between the two electrode plates (for example, see Japanese Utility Model Publication No. 2-33881). At least one of the two electrode plates is a coated electrode plate in which a conductive material is coated with a resin sheet, and are alternately and parallelly laminated to form an electrode plate laminate. The electrode plate laminate is housed in a predetermined casing, and is disposed downstream of the ionization unit in the air path of the electric precipitator.

Each electrode plate has a connection piece at an end,
This connecting piece is curved to achieve mechanical connection to the casing and electrical connection to the corresponding electrode.

[0005]

In order to improve the dust collecting ability of the above-described dust collecting portion, it is required to reduce the interval between the electrode plates and increase the number of the electrode plates. However, as the lamination interval becomes narrower, variations in dimensional tolerances in the thickness of the electrode plate, the protrusion height of the spacer, and the like are accumulated, and a dimensional error may occur in the electrode plate laminate. For this reason, when assembling the dust collecting portion, there has been a problem that the electrode plate laminate is bumped in the casing or that the electrode plate laminate cannot be accommodated in the casing. In order to solve such a problem, it is conceivable to increase the processing accuracy and suppress variation in tolerance. However, in such a case, a problem that the manufacturing cost of a product is increased is caused.

In particular, since at least one of the above-mentioned electrode plates is a coated electrode plate in which a conductive material is coated with a resin sheet, each electrode plate is twisted or curved unless pressed on a wide surface in the stacking direction. There is a problem that the parallelism of the plates cannot be sufficiently maintained. The present invention has been made in view of the above-described problems, and has an electric dust collecting element that can absorb variations in dimensional tolerance and can maintain good mechanical strength and electric connection performance of each electrode plate laminate. It is intended to provide a dust collecting section.

[0007]

In order to solve the above-mentioned problems, according to a first aspect of the present invention, there are provided a plurality of application electrode plates formed in a long plate shape each having a conductive member made of a conductive material. In the dust collecting portion of the electric dust collecting element having an electrode plate laminated body configured by alternately laminating each electrode plate with a laminating interval between each other, and having a dust collecting electrode plate, An elastic spacer that is interposed and allows the electrode plate laminate to be compressed to the above-described lamination interval during assembly, and a plurality of penetrating members that penetrate the electrode plate laminate in the lamination direction of the electrode plate. The elastic spacer penetrates the penetrating member, and a part of the elastic spacer is pressed against the outer periphery of the penetrating member to mechanically contact the penetrating member.
The penetrating member is a dust collecting part of the electric dust collecting element, wherein the penetrating member holds each electrode plate via the elastic spacer.

[0008]

[0009] The configuration of claim 2, in the dust collecting unit of an electric dust collecting element according to claim 1, wherein, one of said penetrating member, intended to penetrate the longitudinally intermediate portion of the electrode plate is there. According to a third aspect of the present invention, in the dust collecting portion of the electric dust collecting element according to the first aspect, the elastic spacer also serves as an energizing member capable of energizing the electrode plate.

[0010] The configuration of the fourth aspect, energized in the dust collecting unit of an electric dust collecting element according to claim 3, wherein said electrode plate, the penetrations members you through an end side in the longitudinal direction Is what is being done.

According to a fifth aspect of the present invention, in the dust collecting portion of the electric dust collecting element according to the first or second aspect, the penetrating member is expanded so as to penetrate the penetrating member. Is linked to Further, the configuration according to claim 6 has a plurality of application electrode plates and a dust collection electrode plate formed in a long plate shape each having a conductive member made of a conductive material, and the electrode plates are spaced apart from each other by a lamination interval. In the dust collecting portion of the electric dust collecting element provided with the electrode plate laminated body configured to be alternately laminated, at least one of the electrode plates of the electrode plate laminated body is formed of a conductive metal plate. An electrode plate formed of the conductive metal plate is penetrated in the laminating direction, and a metal penetrating member configured to be able to expand in the radial direction is interposed between the electrode plates adjacent to each other. At the same time, an elastic spacer is provided to allow the electrode plate laminate to be compressed to the above-described lamination interval during assembly, and a penetrating member before expansion is inserted into the electrode plate formed of the conductive metal plate. And expand after insertion Through-member and are pressed to insertion hole is formed, the elastic spacer, along which is passed through the penetrating member, the middle portion is pressed against child on the outer periphery of the penetrating member
And a compression coil spring mechanically connected to the penetrating member by means of the above.

According to a seventh aspect of the present invention, in the dust collecting portion of the electric dust collecting element according to the fifth or sixth aspect , the penetrating member is a slit pipe. According to an eighth aspect of the present invention, in the dust collecting portion of the electric dust collecting element according to the seventh aspect, a core material inserted into the expanded penetrating member is further provided.

According to a ninth aspect of the present invention, in the dust collecting portion of the electric dust collecting element according to the sixth aspect, a pair of resin-made plate portions for fixing both ends of the penetrating member and each of the plate portions are provided. Including a fitting hole formed and fitted with an end of the penetrating member, a casing for accommodating the electrode plate laminate therein is further provided, and the penetrating member has both ends expanded in the fitting hole. is the also Ru is connected with the plate portion.

Further, according to a tenth aspect of the present invention, there are provided a plurality of application electrode plates and dust collection electrode plates formed in a long plate shape each having a conductive member made of a conductive material, and the respective electrode plates are stacked on each other. In the dust collecting portion of the electric dust collecting element provided with the electrode plate laminate configured to be alternately stacked at intervals, while being interposed between the adjacent electrode plates,
An elastic spacer that allows the electrode plate laminate to be compressed to the lamination interval during assembly, and a plurality of penetrating members that penetrate the electrode plate laminate in the laminating direction of the electrode plates are provided. Is connected to the elastic spacer that penetrates the penetrating member by expanding, and a pair of resin-made plate portions for stopping both end portions of the penetrating member, and formed in each plate portion to penetrate. Including an insertion hole for inserting the end of the member, a casing for housing the electrode plate laminate therein is further provided, and the penetrating member is configured such that both ends thereof are expanded in the insertion hole so that the plate portion and the retaining portion for preventing the escape from with <br/> fitting hole is connected is to chromatic <br/> to the end portion. Further, the configuration according to claim 11 has a large number of application electrode plates and dust collection electrode plates formed in a long plate shape each having a conductive member made of a conductive material, and the electrode plates are spaced apart from each other by a lamination interval. In the dust collecting part of the electric dust collecting element provided with the electrode plate laminated body constituted by being alternately laminated, the electrode plate laminated body is interposed between the adjacent electrode plates, and the electrode plate laminated body is arranged at the above-mentioned laminating interval at the time of assembly. An elastic spacer that allows compression and a plurality of penetrating members that penetrate the electrode plate laminate in the laminating direction of the electrode plates are provided, and the penetrating members are expanded to allow the penetrating members to penetrate. It is connected to the elastic spacer that has, a pair of resin plate portions to stop both ends of the penetrating member, and a fitting hole formed in each plate portion to fit the end of the penetrating member, Inside the above electrode plate laminate Further casing housing the provided both end portions of the penetrating member by expanding in the insertion hole in it is also <br/> of Ru is connected with the plate portion, the fitting hole of the plate portion, the both ends of the piercing member is one that has an energy absorbing portion for absorbing the expansion energy caused by the expansion.

[0015]

According to the first aspect of the present invention, during assembly, the electrode plate laminate is pressed in the laminating direction, so that the electrode plate laminate is compressed into a state of being separated by a prescribed laminating interval by the elasticity of the elastic spacer. Is done. Also, since a penetrating member that holds each electrode plate via an elastic spacer is adopted,
Each electrode plate is held without curving the end. In addition, since the elastic spacer penetrates the penetrating member, and a middle portion is formed of a compression coil spring mechanically connected to the outer periphery of the penetrating member, both ends in the height direction of the elastic spacer are has a relatively large contact area, while the electrode plate in a compressible state in the stacking direction becomes possible contact, the height direction intermediate portion, Ru securely fixed is the penetrating member <br/> Re Tei .

Further, in the configuration according to the second aspect , since the penetrating member penetrates the intermediate portion in the longitudinal direction of the electrode plate, the intermediate portion of the electrode plate is held by the penetrating member via each elastic spacer. Will be. According to the configuration of the third aspect , the contact area for energization can be set larger by the elastic spacer.

[0017] In the configuration of claim 4, it is possible to ing to electrically connect the conductive member and the electrode plates without bending the end portion of the electrode plate.

According to the fifth aspect of the present invention, when the penetrating member is expanded, the elastic spacer penetrating the penetrating member is pressed against the expanded penetrating member and is directly connected. In the configuration according to the sixth aspect, the penetrating member fitted in the fitting hole of the electrode plate formed of the conductive metal plate is expanded to be firmly connected to the fitting hole.

Further, in the configuration according to the seventh aspect , since the penetrating member is constituted by the slit pipe, the expanding operation is facilitated. Further, in the configuration of the eighth aspect , by inserting the core material into the expanded penetrating member, the springback of the penetrating member is regulated by the core material, and the connecting force of the penetrating member to the elastic spacer is maintained. become. Further, by inserting the core material into the penetrating member, the penetrating member is reinforced by the core material.

According to the ninth aspect of the present invention, in the assembling step, the penetrating member penetrates the electrode plate laminate in the direction in which the electrode plates are laminated. In this state, the expanded ends of the penetrating members are fitted into the corresponding fitting holes. Then, by expanding the expanded end, the expanded end is fixed to the corresponding plate. In the configuration according to the tenth aspect , the retaining end prevents the expanded end from coming off the fitting hole of the plate portion.

According to the eleventh aspect , the expanding energy caused by the expanding end portion is absorbed by the energy absorbing portion.

[0022]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a simplified perspective view showing a main part of a dust collecting section employing an elastic spacer according to an embodiment of the present invention, and FIG. 2 is an exploded view schematically showing the dust collecting section according to an embodiment of the present invention. It is a perspective view.

Referring to FIG. 1, the dust collecting section E constitutes an electric dust collecting element together with an ionizing section (not shown). Casing E1 constituting the outer shell of the dust collecting section E
0 denotes a board E1 and a top plate E2 as plate portions, and both plates E
A frame member E3 (only two are shown in FIG. 2) erected between the corners of E1 and E2, and a side plate E4 (only one is shown in FIG. 2) constituting a side wall portion from the outside of each of the frame members E3. It has.

Between the substrate E1 and the top plate E2, an applied electrode plate 10 and a dust collecting electrode plate 20 are alternately laminated at intervals from each other, and these electrode plates 10, 20 are arranged inside the casing E10. The electrode laminate 30 is formed. Both of the electrode plates 10 and 20 are formed in a long plate shape, and are laminated with an interval therebetween in the direction in which the substrate E1 and the top plate E2 face each other (the laminating direction indicated by L in FIG. 2). Although simplified in FIG. 2, each of the electrode plates 10 and 20 is actually stacked in, for example, 50 to 90 steps with a narrow stacking interval h1 of about 1.8 mm (see FIG. 1). . In this way, a ventilation passage PH for allowing air to be cleaned to flow is defined between the two electrode plates 10 and 20.

Referring to FIG. 3, a conductive member 10A made of a conductive resin is printed on a sheet material made of, for example, polyethylene terephthalate, and a sheet of polyethylene terephthalate is formed thereon. This is a so-called molded electrode plate in which materials are laminated, and the conductive member 10A is exposed at one longitudinal end 10B. The one end 10B is provided with a fitting insertion hole 10C for fitting a first through member 41 for energization described later.

On the other hand, the dust collecting electrode plate 20 is a sheet material formed of bare spring steel, and maintains the above-mentioned electrical insulation through a large number of spacer protrusions 20A which are undulating in the stacking direction L. The application electrode plate 10 is separated from the application electrode plate 10 by a predetermined distance in the stacking direction L. At the other end 20B in the longitudinal direction,
An insertion hole 20C for inserting a second through member 42 for energization, which will be described later, is provided.

In this embodiment, the spacer projection 20
A is obtained by cutting and raising a part of the dust collection electrode plate 20 into a plate shape and undulating along the stacking direction L. Each spacer projection 2
0A is the width direction of the dust collecting electrode plate 20 (the air path P).
H), those that project upward and those that project downward are alternately arranged side by side, and those that project in the same direction are respectively aligned in the longitudinal direction (the air path PH).
(In the direction perpendicular to the direction).

As shown in FIG. 3, the spacer projections 20A formed on each dust collecting electrode plate 20
0 are opposed to each other in the stacking direction L. The undulation dimension H1 of each spacer projection 20A in the free state is set slightly higher than the lamination interval h1 of the electrode plates 10 and 20 at the time of assembly. It is configured as a compressible elastic spacer.

As shown in FIG. 2, the electrode plates 10 and 20 are formed with insertion holes 10E and 20E for inserting a third penetrating member 43 for reinforcement. Fitting holes 10E, 2
In each of the electrode plates 10 and 20, OE is defined by an insulating member for electrically insulating the penetrating member 43. Next, with reference to FIGS. 2 and 3, first to third penetrating members 41, 42, 43 made of a metal member such as stainless steel are provided in the electrode plate laminate 30.
Penetrates along the laminating direction L of the electrode plates 10 and 20.

The first penetrating member 41 is electrically connected to a positive electrode of a high-voltage supply source (not shown), and penetrates through the fitting hole 10C of the applying electrode plate 10 to apply the applying electrode plate 1
0 is held in a cantilever shape, and is electrically connected to the conductive member 10 </ b> A of the application electrode plate 10. Second
Is electrically connected to the negative electrode of the high voltage supply source, and penetrates through the insertion hole 20C of the dust collecting electrode plate 20 to hold the dust collecting electrode plate 20 in a cantilever shape. And is electrically connected to the dust collection electrode plate 20.

The third penetrating member 43 includes the two electrode plates 10, 2
0, which penetrates through the central portion in the longitudinal direction to prevent the electrode plates 10 and 20 from sagging, and is mechanically connected to the electrode plates 10 and 20 in an electrically insulated state. . In this embodiment, the penetrating rods E6 and E7 for reinforcement penetrate through the free ends of the electrode plates 10 and 20, and each penetrating rod E
6, E7 are press-fitted into the substrate E1 and the top plate E2.

Each of the penetrating members 41 to 43 has a compression coil spring 41A, 42A, 43 as an elastic spacer.
A is arranged concentrically, and these compression coil springs 41
A to 43A, the electrode plate 1 facing in the stacking direction L
A predetermined interval between 0 and 20 is maintained. Referring to FIG. 1, compression coil springs 41A to 43A in the present embodiment.
Are formed in a pinching shape, and the height-direction intermediate portions 401A, 402A, and 403A are press-fitted to the outer peripheries of the corresponding penetrating members 41 to 43, and the height-direction both end portions 411A, 421A. , 412A,
422A, 413A, and 423A are pressed against the corresponding lower surfaces and upper surfaces of the electrode plates 10, 10 (20, 20) in the stacking direction L.

The height of each of the compression coil springs 41A to 43A is such that each of the electrode plates 1 at the time of assembly is free.
It is set slightly higher than the stacking interval h2 of 0, 10 (20, 20), and is configured to be elastically compressed in the stacking direction L with each other at the time of assembly described later.
As shown in FIGS. 1 and 3, the intermediate portion 401 </ b> A in the height direction of each of the compression coil springs 41 </ b> A penetrating the first penetrating member 41 is in pressure contact with the first penetrating member 41. It is mechanically connected and electrically conductive. The lower end 421A in the height direction presses the exposed portion of the conductive member 10A of the application electrode plate 10 in the laminating direction L, thereby maintaining the stacking interval h2 and electrically connecting the conductive member 10A. Connected to

On the other hand, the intermediate portion 402A in the height direction of each compression coil spring 42A penetrating the second penetrating member 42
Are mechanically connected by being in contact with the second penetrating member 42 and are electrically connected.
In addition, the both ends 412A and 422A in the height direction maintain the stacking interval h2 by pressing against the dust collecting electrode plate 20 formed of a bare metal conductive member in the stacking direction L, The dust collecting electrode plate 20 is electrically connected.

On the contrary, each of the compression coil springs 43A penetrating through the third penetrating member 43 is mechanically connected to the penetrating member 43, but the two electrode plates 1 are pressed against each other.
0 and 20 are electrically insulated. Also, the height of the compression coil spring 43A is set slightly higher than the lamination interval h1 of the electrode plates 10, 20 similarly to the spacer projection 20A.

Referring to FIG. 2, FIG. 5 and FIG. 6, each of penetrating members 41 to 43 has a slit 41B,
It is constituted by a slit pipe having 2B and 43B, and is configured to be able to be fitted into fitting holes E11 and E21 formed in the substrate E1 and the top plate E2 of the casing E10, respectively. And, the slits 41B-43
B, both ends 41C and 41 of each of the penetrating members 41 to 43
F, 42C, 42F, 43C, and 43F are expanded in the corresponding insertion holes E11 to form expanded ends connected to the board E1 and the top plate E2. At the same time, each of the penetrating members 41 to 43 is
When C-43F is expanded, it expands in the radial direction, and is pressed into corresponding fitting holes 10C and 20C of electrode plate 10 (20).

Referring to FIGS. 4A and 4B, each end 41C-43F of the penetrating members 41-43 is connected to each plate E1,
In order to connect to E2, fitting holes E11 and E21 are formed in each of the plates E1 and E2. Each insertion hole E11,
E21 has a large number of ribs E111 and E211 that protrude in the radial direction and extend in the center line direction and are integrally formed on the inner peripheral surface at regular intervals. These ribs E111, E211
Is pressed against the outer peripheral surface of each of the ends 41C to 43F when the ends 41C to 43F are fitted, and
It constitutes an energy absorbing portion that absorbs expansion energy due to expansion of C to 43F.

Further, the lower surface of the substrate E1 and the upper surface of the top plate E2 are formed concentrically with the insertion holes E11 and E21.
Annular grooves E112, E2 continuous with the fitting holes E11, E21.
12 are formed. These annular grooves E112, E212
Is for locking the locking pieces 41G, 42G, 43G described later (see FIG. 6). As shown in FIGS. 5 and 6, the end members 41 </ b> C to 43 </ b> F
Locking pieces 41G, 4 extending along the longitudinal direction of 1 to 43
2G and 43G are extended. Each locking piece 41G-43
G is continuous with the opening edges of the slits 41B to 43B, and when the ends 41C to 43F are expanded, the penetrating member 41 is formed.
To 43 in the radial direction to form the annular grooves E112 and E112.
Lock to 212. Thereby, each locking piece 41G-43
G constitutes a retaining portion for preventing the penetrating members 41 to 43 from coming off the substrate E1 and the top plate E2.

Next, the assembling process of the dust collecting section E in this embodiment will be described with reference to FIG. 2 and FIGS. First, referring to FIG.
The electrode plates 10 and 20 described above are alternately stacked on each other via A to 43A to form an electrode plate stacked body 30, which is connected by penetrating the penetrating members 41 to 43 and the penetrating bars E6 and E7 for reinforcement. .

At this time, since the penetrating members 41 to 43 are constituted by slit pipes having slits 41B to 43B, the penetrating members 41 to 43 can be easily expanded and contracted in the radial direction. Through the electrode plate laminate 30. In this state, the substrate E1 and the top plate E2 are assembled to the electrode plate laminate 30, so that the lower end portions 41C, 42C, 43 of the penetrating members 41 to 43 are provided.
C is inserted into the insertion hole E11 of the board E1, and the upper ends 41F, 42F, 43F are inserted into the insertion holes E of the top plate E2.
21.

At this time, the plates E1 and E2 are pushed into each other in the laminating direction L so that the above-described spacer projection 20 is formed.
A, and each compression coil spring 41A, 42A, 43A
Are pressed against each other in a state where they face each other with the application electrode plate 10 interposed therebetween. As a result, they are compressed with each other during this assembly. The compression of the spacer projections 20A and the compression coil springs 41A, 42A, 43A causes the respective spacer projections 20A and the compression coil springs 4A to compress.
Variations in the protrusion heights of 1A, 42A, and 43A are absorbed, and the desired stacking intervals h1 and h2 can be reliably obtained.

As shown in FIG. 8, at this stage,
Height intermediate portion 40 of compression coil springs 41A to 43A
1A to 403A are both end portions 411A to 413 in the height direction.
As in A, the penetrating members 41 to 43 are loosely fitted. Therefore, the above assembling process can be performed very easily. Also, at this stage, as shown in FIG.
Ends 41C to 43F of the penetrating members 41 to 43 are provided with ribs E111 and E211 formed in the fitting holes E11 and E21.
(See FIG. 4).

Next, referring to FIG.
The end portions 41C to 43F of the penetrating members 41 to 43 temporarily fixed to the substrate E1 and the top plate E2 of the
It is pressurized by 0 and expands. The expanding process by the punch 60 may be performed sequentially on the respective penetrating members 41 to 43, or may be performed simultaneously. By this expanding step, the penetrating members 41 to 43 are plastically deformed in a state of being entirely expanded, and as shown in FIG.
The penetrating members 41 to 43 are pressed against the height intermediate portions 401A to 403A of 1A to 43A. As a result, the compression coil springs 41A to 43A are connected to the penetrating members 41 to 43 while maintaining the predetermined stacking intervals h2 and h1.
, And the mechanical holding and the electrical continuity are reliably ensured. On the other hand, each compression coil spring 41A-
43A, both ends 411A to 413A in the height direction are still stretchable in the stacking direction L, and the corresponding electrode plates 1
0, 10 (20, 20) are pressed in the stacking direction L. Thus, the respective electrode plates 10 and 20 are mechanically connected via the corresponding compression coil springs 41A and 42A, and are electrically connected. Also, the compression coil spring 43A is mechanically connected to prevent the intermediate portion from being loosened.

Further, as a result of being pressed against the fitting holes E11 and E21 formed in the plates E1 and E2 and the electrodes 10C and 20C formed in the electrode plates 10 and 20, they are connected by the frictional force. Further, as shown in FIG.
By this expanding process, the punch 60 is moved to each end 41C.
To the locking pieces 41G to 43G formed on
This is inserted into the annular grooves E112, E formed in the plates E1, E2.
Lock into 212. Further, by expanding the end portions 41C to 43F of the penetrating members 41 to 43, the respective plates E1, E
2 each of the ribs E11 formed in the fitting holes E11 and E21.
1, E211 is crushed, and each of the ends 41C to 43F is plastically deformed to a predetermined size.
Absorbs 3F spreading energy.

The connection between the plates E1 and E2 and the penetrating members 41 to 43 in the above-described expanding step may be a temporary connection for facilitating screwing, or a book for omitting the screwing. It may be a connection. In any case, it goes without saying that the assembly processing of the electrode plate assembly 30 to the casing E10 becomes easy. After the above steps are completed, the casing E10 is assembled in the same manner as the conventional dust collecting section, and the dust collecting section E is completed.

As described above, in the configuration of the present embodiment, the spacer projection 20A and the compression coil springs 41A to 41A.
Due to the elasticity of the electrode plate 43A, the electrode plate laminate 30 is compressed so as to separate the prescribed lamination intervals h1 and h2.
Variations in dimensional tolerances in the thicknesses of 0 and 20 and the protruding height of the spacer itself are absorbed, and desired stacking intervals h1 and h2 are obtained.
Has the advantage that it is possible to reliably obtain.

Further, since each of the electrode plates 10, 20 is held without curving the end of each of the electrode plates 10, 20, the electrode plates 10, 20 are twisted or the like, or the ends of the electrode plates 10, 20 are not cleaned. It is possible to reliably prevent a problem such as a liquid remaining. Further, each of the electrode plates 10 and 20 and the first and second penetrating members 4 are not bent without bending the end portions of the electrode plates 10 and 20.
1 and 42 can be electrically connected,
When the electrode plates 10 and 20, particularly the applied electrode plate 10 covered with a resin sheet, are employed, there is an advantage that the applied electrode plate 10 can be reliably prevented from being curved.

In addition, the intermediate portion of each of the electrode plates 10 and 20 is connected to each of the spacer projections 20A and the compression coil springs 41A to 43A.
Since each of the electrode plates 10, 20 is held horizontally by the penetrating members 41 to 43, when the electrode plates 10, 20 are arranged horizontally, it is ensured that the electrode plates 10, 20 are sagged in the longitudinal middle part. Therefore, there is an advantage that the mechanical strength of each electrode plate laminate 30 can be maintained.

In particular, the compression coil springs 41A-41 of this embodiment
43A makes it possible to set a larger contact area for energization, so that each electrode plate 1 can be more reliably set.
There is an advantage that it is possible to obtain 0, 20 conducting structures. In particular, the compression coil springs 41A to 43
Since A is composed of a continuous compression coil spring, the intermediate portions 401A to 403A in the height direction of the compression coil springs 41A to 43A are surely inserted into the penetrating members 41 to 43.
, Which is advantageous in that mechanical connection or electrical connection can be reliably ensured.

On the other hand, both end portions 402A to 403A in the height direction of the compression coil springs 41A to 43A have a relatively large contact area, and can be compressed in the stacking direction L.
Since it is possible to abut the electrode plates 10 and 20 with the spacer projections 20A, the electrode plates 10 and 20 can be pressed on a wide surface in the stacking direction L, and twisting and bending can be prevented.

Also, both end portions 402A-403 in the height direction
A can be freely displaced with respect to the penetrating members 41 to 43, so that it expands and contracts in the laminating direction L of the electrode plates 10, 20 even after assembly, and more reliably absorbs the dimensional variation in the laminating interval h2. Can be. In addition, when an impact or the like acts on the electrode plate laminate 30, the above-described expansion and contraction characteristics make it possible to absorb the impact and improve the mechanical strength of the electrode plate laminate 30. There are advantages.

Further, since the compression coil springs 41A to 43A are pressed against the penetrating members 41 to 43 in the expanding step, the assembling work before the expanding step is performed, the penetrating members 41 to 43 are relatively easily compressed. Coil springs 41A-4
3A, the compression coil springs 41A to 43A and the penetrating member 4
There is also an advantage that electrical connection and mechanical connection with the components 1 to 43 can be reliably performed. In addition, since the spread processing can be easily performed using a well-known punch or the like, there is an advantage that it is easy to adjust to automatic assembly.

Further, in the configuration of this embodiment, each penetrating member 4
By expanding the end portions 41C to 43F of 1 to 43,
Since the penetrating members 41 to 43 and the casing E10 can be connected to each other, it is possible to facilitate the screwing as a temporary fixing step, and even to abolish the screwing as the main fastening step. As a result, since the assembling work can be performed quickly, there is an advantage that workability is improved.

In particular, the locking pieces 41G to 43G cause the ends 41C to 43F to be inserted into the fitting holes E1 of the substrate E1 and the top plate E2.
1, since it is prevented from coming off from E21, there is an advantage that the mechanical strength between the penetrating member and the casing is further enhanced. In the configuration of the present embodiment, the end portions 41C to 43C
By expanding F with the punch 60, the penetrating member 41
-43 to each plate E1, E2;
As a result of performing the steps of connecting to 0 and 20 at the same time, there is an advantage that the efficiency of the assembling work can be improved.

Moreover, the spreading energy is increased by the rib E111,
Ends 41C-43F as a result of absorption by E211
To prevent the substrate E1 and the top plate E2 from being damaged by the spreading energy at the time of expansion of the substrate, and to achieve both the mechanical strength of the connecting portion and the protection of the resin substrate E1 and the top plate E2. There is an advantage that can be. The embodiments described above are merely preferred embodiments of the present invention, and the present invention is not limited to the above embodiments.

For example, the dust collecting electrode plate 20 of the present embodiment has a conductive portion exposed on both sides in the stacking direction, and the third penetrating member 43 does not require electrical conduction. In contrast, as shown in FIG. 13, a compression coil spring SP1 having the same diameter may be employed as the elastic spacer. Further, as shown in FIG. 13, a solid penetrating member 44 may be employed.

Alternatively, a leaf spring SP2 as shown in FIG. 14 is not limited to a coil spring. This leaf spring S
P2 is a seating part SP21 seated on one electrode plate, a pressure contact part SP22 pressed against the lower surface of the electrode plate facing above the one electrode plate, a seating part SP21 and a pressure contact part SP22.
And a connecting portion SP23 for connecting the two.

Each part SP21 to SP23 has a loose fitting hole SP.
211, SP212, and SP213 are bored, and are configured to be able to expand and contract with each other in the laminating direction of the electrode plates with the penetrating members corresponding to the loose fitting holes SP211 to SP213 being loosely fitted. In FIG. 14, the seating part SP2
The arc-shaped edges SP24 and SP25 extending away from the electrode plate extend from the first and press-contact portions SP22 to prevent the electrode plate from being scratched.

Further, as shown in FIG.
(10) The end portion SP3 may be curved to form an elastic spacer. Alternatively, as shown in FIG.
You may employ | adopt the penetration member 44 which only expands. FIG.
The expanded end portion 45A of the penetrating member 45 is expanded in a trumpet shape at the time of expansion, whereby it is possible to exhibit both the effects of press-fitting into the fitting holes E11 and E21 and the function of preventing it from coming off. .

In the embodiment of FIG. 1 described above, the material of the penetrating members 41 to 43 formed of the slit pipes is such that the plastic members easily deform plastically at the time of expansion, so that the compression coil springs 41A to 43A are formed. While a high coupling force (friction resistance) can be maintained, a material having high mechanical strength after assembly is desirable. However, when a material having high plasticity is selected, the mechanical strength tends to be insufficient. for that reason,
Due to the reaction force of the compression coil springs 41A to 43A, there is a possibility that the diameter of the penetrating members 41 to 43 may be reduced to cause poor contact or the penetrating members may be deformed. On the other hand, when a material having high mechanical strength is selected, although the above-mentioned problems can be solved, the plasticity of the penetrating members 41 to 43 decreases, and springback occurs after the expansion, which may reduce the coupling force. . As described above, it may be difficult to achieve both the coupling force (friction resistance) and the mechanical strength after assembly.

Therefore, as shown in FIG. 17, when the penetrating members 41 to 43 are used in the slit pipe, the core member 50 inserted into the expanded penetrating members 41 to 43 may be used together. As the core material 50, a material having high rigidity, excellent corrosion resistance, and high mechanical strength is preferable. In this embodiment,
A stainless steel pipe is used as the core material 50.

As a method of inserting the core member 50 into the penetrating members 41 to 43, after the temporary fixing step described with reference to FIG. 9 is completed, as shown in FIG. May be introduced from one end of the penetrating members 41 to 43, and the core member 50 may be pushed backward while the penetrating members 41 to 43 are expanded. As a result, the expanded penetrating member 4
The core material 50 is introduced into the core members 1 to 43, and finally, the penetrating member 4 is formed.
While the core material 50 is to be press-fitted into 1 to 43, the jig 70 comes out of the other end of the penetrating members 41 to 43.

In the case where the structure shown in FIG. 17 is employed, the core members 50 are inserted into the expanded penetrating members 41 to 43 so that the springback of the penetrating members 41 to 43 is reduced.
And the coupling force of the penetrating members 41 to 43 to the compression coil springs 41A to 43A is maintained.
Therefore, even when a material having large spring back and low plasticity is selected as the material of the penetrating members 41 to 43,
There is an advantage that a solid connection structure can be obtained.

On the other hand, when the core member 50 is inserted into the penetrating members 41 to 43, the penetrating members 41 to 43
Will be reinforced. Therefore, when the core member 50 is inserted into the penetrating members 41 to 43, the penetrating members 4
Since the core members 1 to 43 are reinforced by the core member 50, even when the penetrating members 41 to 43 are made of a relatively soft and highly plastic material, the required mechanical strength can be obtained. There is.

As described above, the core member 50 is connected to the penetrating members 41 to 4.
When used together with 3, the connection force and mechanical strength of the penetrating members 41 to 43 can be compatible, and thus there is an advantage that the range of materials that can form the penetrating members 41 to 43 is widened. Further, the elastic spacer described above may be used in combination with a resin spacer having no elasticity as long as the electrode plate laminate is allowed to be compressed to a specified lamination interval during assembly. In this case, although the expansion and contraction characteristics of the entire electrode plate laminate are restricted to some extent, it is possible to reduce the overall weight by reducing the number of metal spring members. Alternatively, as shown in FIG. 19, the elastic spacer may be formed by a rubber spacer 80 having a cylindrical shape. This also makes it possible to achieve a large and light weight as compared with an elastic spacer made of metal.

For example, in the case of a dust collector used in a large-sized electric dust collector, it is necessary to use 328 elastic spacers except those formed on the electrode plate. In this case, when the above-mentioned compression coil spring (the maximum diameter is 16 mm, the spring height in a free state is 4.5 mm, and the wire diameter is 0.8 mm), the weight per piece becomes 1.2 grams,
Cylindrical elastic rubber of the same size (outer diameter is 16mm,
If the height is 4.5mm and the wall thickness is 2mm), the weight will be 0.5g per piece, significantly reducing the weight (328 pieces x (1.2g-0.5g) / 230g). It becomes possible.

When the elastic spacer is formed by the rubber spacer 80, the conductive rubber may be formed in a cylindrical shape so that the corresponding electrode plates (only the electrode plate 10 is shown in FIG. 19) are electrically connected to each other. Good. As the conductive rubber, carbon is added to silicone rubber to make it conductive, so that the electrical resistance is 50 Ω · cm, the hardness is 40 to 70 degrees (JISA), and the specific gravity is 1.0 to 1.3. It is preferable to set. In this case, a high contact pressure can be obtained by utilizing the elasticity of the rubber spacer 80. As a result, the upper and lower surfaces are brought into close contact with the electrode plate 10 in a surface contact state, and more reliable electrical conduction can be achieved. There is an advantage. In particular, when the conductive member 10A of the electrode plate 10 is exposed on both surfaces of the electrode plate 10, the conductive member is used as it is without providing a current-carrying member. There are also benefits.

In addition, as the elastic spacer made of conductive rubber, as shown in FIG. 20, an annular rubber spacer 90 having an end surface 91 which rises and falls in the laminating direction L may be employed. When the configuration shown in FIG. 20 is employed, a large elasticity can be obtained, so that there is an advantage that more reliable electrical conduction can be achieved. When the elastic spacer is made of rubber, a rubber spacer 95 shown in FIG. 21 can be used.

With reference to FIG.
A flange portion 95A electrically contacting the conductive member 10A of the electrode plate 10 in a surface contact state;
And a boss 95B integrally formed at the center of the boss 95B, and the penetrating member 41 is inserted through the boss 95B. At the time of assembly, the boss portions 95B are arranged in one direction in the stacking direction L. Accordingly, each rubber spacer 95 is compressed at the time of assembly in a state where the boss 95B of one rubber spacer 95 is fitted into the flange 95A of the other rubber spacer 95 adjacent in the protruding direction. .

In this configuration, the penetrating member 4 is attached to the boss 95B.
1 penetrates, the boss 95B is interposed between the penetrating member 41 and the electrode plate 10, so that when the resin-molded electrode plate 10 is employed, the electrode plate 10 comes into contact with the penetrating member 41. This can reliably prevent damage due to this. In particular, when the above-mentioned slit tube is used as the penetrating member 41, the boss 95B has a remarkable effect of protecting the electrode plate.

When the rubber spacer 95 is made of conductive rubber, the contact area between the rubber spacers 95 and the contact area between the boss portion 95B and the penetrating member 41 can be obtained, so that the electrical conduction is achieved. Has the advantage of being more reliable. Further, in the above-described embodiment, the energy absorbing portion is embodied by the ribs E111 and E211 integrally formed on each of the plates E1 and E2. You may. Rubber, metal spring, or the like can be used as the elastic body. However, as in the embodiment of FIG.
When 11, E211 is adopted, there are advantages that processing is easy and that the number of parts does not increase.

Further, the configuration shown in FIG. 22 may be adopted. Referring to FIG. 22, the dust collecting electrode plate 20 of FIG.
The boss portion 21 continuing to 0C (20E) is integrally formed. The boss portion 21 is formed on the dust collecting electrode plate 20 by, for example, burring, and is used for inserting the penetrating member 42 during the assembly process described with reference to FIG.

As shown in FIG. 22, a fitting hole 20C is formed in the dust collecting electrode plate 20 made of a conductive metal plate (stainless steel), and when the penetration member 42 is expanded, the penetration member 42 is inserted into the fitting hole 20C.
Is pressed, the dust collecting electrode plate 20 is directly connected to the penetrating member 42. As a result, although the projection 20A formed by cutting and raising the dust collecting electrode plate 20 cannot be eliminated, the penetrating member 42 inserted into the insertion hole 20C of the dust collecting electrode plate 20 is penetrated. Spacer 42A can be omitted. In particular, in the case of the configuration of FIG. 22, there is an advantage that the boss portion 21 can provide a more rigid connection structure.

When the structure shown in FIG. 22 is employed, the elastic spacer 41 connected to the resin-molded electrode plate (the applied electrode plate 10) when the penetrating member 41 is expanded is used.
It is preferable to connect the penetrating member 41 and the electrode plate 10 via A. In the case of a resin-molded electrode plate, even if the insertion hole 10C is provided, the coupling force with the penetrating member 41 is reduced due to deterioration over time, but the penetration through the elastic spacer 41A as in the above-described embodiment. The member 41 is the electrode plate 1
By supporting 0, a solid connection structure can be obtained for a long period of time.

The penetrating members 41 to 43 may be formed of hollow stainless steel tubes having no slits 41B to 43B, and may be expanded at the time of assembly. Slit 41B
Even when the hollow tube without 43B is expanded, the hollow tube can be reliably connected to the elastic spacer 41A or the fitting holes 20C and 20E of the electrode plate 20. In addition, it goes without saying that various design changes can be made without departing from the scope of the present invention.

[0076]

As described above, according to the first aspect of the present invention,
In the described configuration, the elasticity of the elastic spacer compresses the electrode plate laminate so as to leave a prescribed lamination interval,
Variations in dimensional tolerances in the thickness of the electrode plate and the protruding height of the spacer itself are absorbed, and there is an advantage that a desired stacking interval can be reliably obtained.

Further , since each electrode plate is held without curving the end portion, it is possible to reliably prevent the electrode plate from being twisted or the like, or to prevent the cleaning liquid from remaining on the end portion. Becomes possible. In addition, elastic spacers
Since the compression coil spring is used,
The middle part in the height direction of the spring must be securely pressed against the penetrating member.
As a result, mechanical connection is not
Or that electrical connections can be reliably ensured.
There are advantages. On the other hand, both ends in the height direction of the compression coil spring
Has a relatively large contact area and is compressible in the stacking direction
It is possible to contact the electrode plate in the state
Can be suppressed over a wide area in the stacking direction, resulting in twisting and bending.
Can be prevented. In addition, self-
The electrode plate even after assembly.
It expands and contracts in the layer direction, and the dimensional variation at the above stacking interval
Can be absorbed more reliably. In addition, impact
When it acts on the electrode plate laminate, it absorbs due to the above-mentioned stretching characteristics.
To reduce the mechanical strength of the electrode plate laminate.
There is an advantage that it can be improved. Also,
In the configuration according to the second aspect , since the intermediate portion of the electrode plate is held by the penetrating member via each elastic spacer, when each electrode plate is disposed horizontally, the intermediate portion in the longitudinal direction of the electrode plate is arranged. There is an advantage that it is possible to reliably prevent the occurrence of slack, and to maintain the mechanical strength of each electrode plate laminate.

According to the third aspect of the present invention, the contact area for energization can be set larger by the elastic spacer, so that the conductive structure of each electrode plate can be obtained more reliably. There is an advantage. According to the configuration of the fourth aspect, since it is possible to electrically connect each electrode plate and the conductive member without bending the end of the electrode plate, the electrode plate is covered with the resin sheet, particularly, the resin sheet. When an electrode plate is employed, there is an advantage that the electrode plate can be reliably prevented from bending.

[0079]

In the structure of the fifth aspect , the elastic spacer is pressed against the penetrating member by the expanding step, so that the penetrating member can be relatively easily attached to the elastic spacer during the assembly operation before the expanding step is performed. Although it can be penetrated, there is also an advantage that it is possible to reliably perform the electrical connection and the mechanical connection between the elastic spacer and the penetrating member after the expanding step.

In the structure according to the sixth aspect, the penetrating member inserted into the insertion hole of the electrode plate formed of the conductive metal plate is expanded to be firmly connected to the insertion hole. Therefore, it is possible to omit the spacer penetrating the penetrating member inserted into the insertion hole, and as a result, there is an advantage that the number of parts and the cost are reduced. Further, in the configuration according to the seventh aspect , since the penetrating member is constituted by the slit pipe, the spreading operation is facilitated, and not only the workability is improved, but also the ease of using a well-known punch or the like is improved. Since the expanding process can be performed, there is also an advantage that it is easy to adjust to automatic assembly.

In the structure according to the eighth aspect , since the connecting force of the penetrating member to the elastic spacer is maintained by the core material, even if a material having a large springback and a low plasticity is selected, a rigid material is provided. There is an advantage that a connection structure can be obtained. In addition, since the penetrating member is reinforced by the core member by press-fitting the core member into the penetrating member, the required strength is obtained even when the penetrating member is formed of a relatively soft and highly plastic material. There is an advantage that it becomes possible.

According to the ninth aspect of the present invention, since the penetrating member and the casing can be connected by expanding the expanded end portion, the temporary fixing step can be used to facilitate screwing. It is even possible to abolish the screwing as a final fastening step. As a result, since the assembling work can be performed quickly, there is an advantage that workability is improved.

According to the tenth aspect of the present invention, since the expanded end portion is prevented from coming off from the fitting hole of the plate portion by the retaining portion, the mechanical strength between the penetrating member and the casing is further enhanced. There is an advantage. According to the configuration of the eleventh aspect , as a result of the expanding energy being absorbed by the energy absorbing portion, it is possible to prevent the plate portion from being damaged by the expanding energy when the expanding end is expanded, and the connection is achieved. There is an advantage that both the mechanical strength of the portion and the protection of the resin plate can be achieved.

Therefore, according to the present invention, a remarkable effect can be obtained in that the dispersion of the dimensional tolerance can be absorbed, and the mechanical strength and the electrical connection performance of each electrode plate laminate can be favorably maintained.

[Brief description of the drawings]

FIG. 1 is a simplified perspective view showing a main part of a dust collecting section employing an elastic spacer according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view schematically showing a dust collecting section according to one embodiment of the present invention.

FIG. 3 is a schematic front view showing a main part of the dust collecting unit of FIG. 2;

4A and 4B are diagrams showing a main part of a casing employed in the dust collecting unit of FIG. 2, wherein FIG. 4A is a bottom view of a fitting hole, and FIG.
FIG. 4 is a cross-sectional view of FIG.

FIG. 5 is a partially cutaway front view showing a penetrating member employed in the dust collecting unit of FIG. 2;

FIG. 6 is a partially cutaway perspective view showing a connection state of a penetrating member employed in the dust collecting unit of FIG. 2;

FIG. 7 is an exploded front schematic view of the dust collecting unit showing an assembling process of the dust collecting unit of FIG. 2;

FIG. 8 is a schematic cross-sectional view showing a state of an elastic spacer at a process stage of FIG. 7;

FIG. 9 is a partially cutaway bottom view showing a connection state of the penetrating members in the process step of FIG. 7;

FIG. 10 is a schematic front view of the dust collecting unit showing a process of expanding the dust collecting unit of FIG. 2;

FIG. 11 is a schematic cross-sectional view showing a state of an elastic spacer in a process stage of FIG. 10;

FIG. 12 is a partially cutaway bottom view showing a connected state of the penetrating members in the process step of FIG. 10;

FIG. 13 is a schematic cross-sectional view illustrating a main part of a dust collecting unit according to another embodiment of the present invention.

FIG. 14 is a schematic perspective view of an elastic spacer according to still another embodiment of the present invention.

FIG. 15 is a schematic perspective view of an elastic spacer according to still another embodiment of the present invention.

FIG. 16 is a perspective view showing a main part of a penetrating member according to another embodiment of the present invention.

FIG. 17 is a simplified perspective view showing a main part of a dust collecting section according to still another embodiment of the present invention.

FIG. 18 is a schematic front view of the dust collecting unit showing a step of expanding the dust collecting unit of FIG. 17;

FIG. 19 is an enlarged view showing a main part in still another embodiment of the present invention.

FIG. 20 is an external view of an elastic spacer according to still another embodiment of the present invention.

FIG. 21 is an enlarged view showing a main part in still another embodiment of the present invention.

FIG. 22 is a schematic front view showing a main part of a dust collecting part according to another embodiment of the present invention.

[Explanation of symbols]

 Reference Signs List 10 applied electrode plate 20 dust collecting electrode plate 20A spacer protrusion (elastic spacer) 30 electrode plate laminated body 41 first penetrating member 42 second penetrating member 43 third penetrating member 44 penetrating member 45 penetrating member 41A compression coil spring ( Elastic spacer) 42A Compression coil spring (elastic spacer) 43A Compression coil spring (elastic spacer) 50 Core material 80 Rubber spacer 90 Rubber spacer 95 Rubber spacer SP1 Compression coil spring (elastic spacer) SP2 Plate spring (elastic spacer) SP3 End ( Elastic spacer)

Continuation of the front page (72) Inventor Kenji Miyano 1-1, Nishiichitsuya, Settsu-shi, Osaka Daikin Industries, Ltd. Yodogawa Works (56) References JP-A-6-63444 (JP, A) 22043 (JP, U) Japanese Utility Model Showa 50-43986 (JP, U) Japanese Utility Model Showa 61-195358 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) B03C 3/00-3 / 88

Claims (11)

(57) [Claims] An electrode plate (10) and a dust collecting electrode plate (20) each having a long plate shape and each having a conductive member made of a conductive material.
Electrode plates (10, 20) adjacent to each other in a dust collecting portion of an electric dust collecting element provided with an electrode plate laminate (30) constituted by alternately laminating the electrode plates at intervals of a lamination interval (h1, h2). And an elastic spacer ( 41A to 43A ) that allows the electrode plate laminate (30) to be compressed to the above-described lamination interval (h1, h2) during assembly. A plurality of penetrating members (41 to 4) penetrating the body (30) in the laminating direction (L) of the electrode plates (10, 20).
3), and the elastic spacers (41A to 43A) are provided with a penetrating member (4
1 to 43), and the middle part is pressed against the outer periphery of the penetrating member (41 to 43) to form a penetrating member.
Coil springs (41A to 43A) mechanically connected to
A), and the penetrating members (41 to 43) are provided with the elastic spacers (41A).
To 43A), wherein each of the electrode plates (10, 20) is held therethrough. 2. A dust collecting part of an electric dust collecting element according to claim 1, wherein one of said penetrating members is provided with an electrode plate.
20) A dust collecting portion of the electric dust collecting element, which penetrates the longitudinal middle portion. 3. The dust collecting portion of the electric dust collecting element according to claim 1, wherein the elastic spacers (41A to 43A ) are provided on the electrode plate (1).
0, 20) a dust collecting portion of an electric dust collecting element which also serves as a current-carrying member capable of conducting current. 4. The dust collection unit of the electric precipitator element according to claim 3, wherein said electrode plates (10, 20), due penetrations member you through an end side in the longitudinal direction (4 2) Dust collection part of electric dust collection element that is energized. 5. The dust collecting portion of the electric dust collecting element according to claim 1, wherein the penetrating members (41 to 43) are penetrated by expanding the penetrating members (41 to 43). A dust collecting portion of the electric dust collecting element connected to the elastic spacers (41A to 43A). 6. A long plate-shaped application electrode plate (10) and a dust collection electrode plate (20) each having a conductive member made of a conductive material.
In an electric dust collecting element provided with an electrode plate laminate (30) constituted by alternately laminating the electrode plates at intervals of the lamination intervals (h1, h2). Electrode plate (10, 20)
Has at least one formed of a conductive metal plate, and penetrates the electrode plate (20) formed of the conductive metal plate in the laminating direction (L) and expands radially. A metal penetrating member (41, 43) that is configured to be able to be interposed between electrode plates (10, 20) adjacent to each other, and the electrode plate laminate (30) has the above-described laminating interval during assembly. (H1, h2) are provided with elastic spacers ( 41A to 43A ) that allow compression, and the electrode plate (20) formed of the conductive metal plate is provided with a penetrating member ( 41, 43), and the insertion holes (20C, 20E) that are in pressure contact with the penetrating members (41, 43) that have been expanded after the insertion are formed. The elastic spacers (41A to 43A) are formed by the penetrating members. (4
1 to 43), and the middle part is pressed against the outer periphery of the penetrating member (41 to 43) to form a penetrating member.
Coil springs (41A to 43A) mechanically connected to
A dust collecting part of the electric dust collecting element, which is characterized by the following: A). 7. The dust collecting part of the electric dust collecting element according to claim 5, wherein the penetrating members (41 to 43) are slit pipes. 8. The dust collecting part of the electric dust collecting element according to claim 7, further comprising a core member (50) inserted into the expanded penetrating members (41 to 43). Dust collection part of dust element. 9. A pair of resin plates (E1, E2) for stopping both ends (41C to 43F) of the penetrating members (41 to 43) in the dust collecting portion of the electric dust collecting element according to claim 6. ), And penetrating members (41 to 4) formed on the respective plate portions (E1, E2).
Insertion holes (E) into which the ends (41C to 43F) of (3) are inserted.
11, E21), and further provided with a casing (E10) for accommodating the electrode plate laminate (30) therein. The penetrating members (41 to 43) have both ends (41C to 41C).
43F) is fitted hole (E11, E21) the dust collecting unit of the electric precipitator element is of even Ru is connected with the plate portion (E1, E2) by expanding in the. 10. A long plate-shaped application electrode plate (10) and a dust collection electrode plate (20) each having a conductive member made of a conductive material.
0) are alternately stacked at intervals of the stacking intervals (h1, h2) in the dust collecting portion of the electric dust collecting element provided with the electrode plate stack (30). 20), an elastic spacer ( 41A to 43A ) that allows the electrode plate laminate (30) to be compressed to the above-described lamination interval (h1, h2) during assembly; A plurality of penetrating members (41 to 4) penetrating the plate laminate (30) in the laminating direction (L) of the electrode plates (10, 20).
3), and the penetrating members (41 to 43) are connected to the elastic spacers (41A to 43A) penetrating the penetrating members (41 to 43) by expanding. A pair of resin plate portions (E1, E2) for stopping both end portions (41C to 43F) of the members (41 to 43), and a penetrating member (41 to 4) formed on each plate portion (E1, E2).
Insertion holes (E) into which the ends (41C to 43F) of (3) are inserted.
11, E21), and further provided with a casing (E10) for accommodating the electrode plate laminate (30) therein. The penetrating members (41 to 43) have both ends (41C to 41C).
Retaining 43F) prevents the insertion hole (E11, E21) from coming off <br/> insertion hole (E11, E21) while being connected with the plate portion (E1, E2) by expanding in the A dust collecting portion of the electric dust collecting element having a portion (41G to 43G) at the end . 11. A long plate-shaped application electrode plate (10) and a dust collection electrode plate (20) each having a conductive member made of a conductive material.
0) are alternately stacked at intervals of the stacking intervals (h1, h2) in the dust collecting portion of the electric dust collecting element provided with the electrode plate stack (30). 20), an elastic spacer ( 41A to 43A ) that allows the electrode plate laminate (30) to be compressed to the above-described lamination interval (h1, h2) during assembly; A plurality of penetrating members (41 to 4) penetrating the plate laminate (30) in the laminating direction (L) of the electrode plates (10, 20).
3), and the penetrating members (41 to 43) are connected to the elastic spacers (41A to 43A) penetrating the penetrating members (41 to 43) by expanding. A pair of resin plate portions (E1, E2) for stopping both end portions (41C to 43F) of the members (41 to 43), and a penetrating member (41 to 4) formed on each plate portion (E1, E2).
Insertion holes (E) into which the ends (41C to 43F) of (3) are inserted.
11, E21), and further provided with a casing (E10) for accommodating the electrode plate laminate (30) therein , and both ends (41C- 43) of the penetrating members (41-43).
F) is connected to the plate portions (E1, E2) by expanding in the fitting holes (E11, E21), and is fitted to the fitting holes (E11, E21) of the plate portions (E1, E2). )
Is both an end portion of said penetrating member (41 ~43) (41C~4
3F) A dust collecting section of an electric dust collecting element having an energy absorbing section (E111, E211) for absorbing the expanding energy caused by expanding.