JPH0233881Y2 - - Google Patents

Description

[Detailed Description of the Invention] A. Field of Industrial Application The present invention relates to an electrode plate for a collector of an electrostatic precipitator used in an air purifier.

B. Prior Art An electrostatic precipitator includes an ionizer that charges dust particles in the air by passing dust-containing air therethrough, and collects the charged particles on the downstream side of the ionizer.
It consists of a collector that cleans and sends out the dust-containing air, and the collector has a large number of ground electrode plates and high voltage electrode plates installed alternately at intervals within a frame having an air inlet and an air outlet. The charged particles are collected on the surface of the electrode plate by the Coulomb force acting between the electric field formed therebetween and the charged particles.

Conventional electrode plates of this type include a thin flexible plastic plate 1 as shown in FIGS. 5 and 6.
A conductive surface 2 coated with conductive paint along the center of one side, and insulating surfaces 3, 3 along both sides of the conductive surface 2 are provided, and an appropriate number of insulating surfaces 3, 3 are provided at appropriate intervals. A group of spacer protrusions 4, 4 are provided, and locking pieces 5, 5 are provided on both ends of the thin plate 1, and locking pieces 5, 5 whose both side portions are extended in parallel are provided, and one of these locking pieces 5 is provided.
In other words, the tip thereof is extended longer than the other locking pieces 5,
There is an electrode plate provided with a current-carrying terminal piece 7 having a conductive surface 6 coated with a conductive paint so as to be continuous with the conductive surface 2 from one side thereof.

This electrode plate includes protrusions 9 protruding from opposing inner surfaces of the frame 8 of the collector, as shown in FIG.
The frame 8 is assembled by fitting the spacing parts 10, 10 of the locking pieces 5, 5 into the frame 9 and bending the current-carrying terminal piece 7.
The conductive surfaces 6 are alternately brought into contact with the earth bar 11 installed on the ground bar 11 and the power supply bar 12 connected to the high voltage side of the high voltage power supply, and the ground electrode plate 13 and It is used as a high voltage electrode plate 14.

C. Problems to be solved by the invention In the above electrode plate, the collector frame 8
Initially, when the terminal piece 7 is installed in
As time passes after installation, the elasticity described above gradually weakens, and the current-carrying terminal piece 7 tends to bend, resulting in poor contact with the earth bar 11 and power supply bar 12, or the current-carrying terminal piece 7 bends against the protrusion 9. There is a problem in that it rises up along the side of the ridge 9 and becomes detached from the protrusion 9, making contact impossible.

The present invention aims to provide an electrode plate for a collector of an electrostatic precipitator that can solve the above-mentioned problems.

D. Means for solving the problems Below, means for solving the above problems will be explained based on FIGS. 1 to 4 showing an embodiment of the present invention.

15 is a thin flexible plastic plate; 1
6 is a conductive surface formed by applying conductive paint along the center of one side of the thin plate 15; 17 and 18 are conductive surfaces 16;
Insulating surfaces 19 and 20 are a group of spacer protrusions protruding from the insulating surfaces 17 and 18 in an appropriate number at appropriate intervals;
The thin plate 15 is made to protrude in a truncated cone shape toward the side of the plate where the conductive surface 16 is provided, and its back side is recessed, and the middle protrusions 19a and 20a of the spacer protrusion groups 19 and 20
The diameter and height of these protrusions are larger than those of other protrusions, and they are protruded at the same position on both sides of the conductive surface 16. They are protruded so as to be offset by half a pitch from each other. 21 and 22 are one edge 23 of the thin plate 15
A locking piece formed by extending both sides of the
One locking piece 21 is provided with an engaging piece 24 whose tip is extended and bent inward from the extended portion, that is, toward the other locking piece 22. A current-carrying terminal piece 26 having a conductive surface 25 coated with a conductive paint is provided so as to be continuous with the conductive surface 16 from one side thereof. 27 and 28 are locking pieces formed by extending parallel sides of the other edge 29 of the thin plate 15; 30 is a frame of the collector;
It consists of an upper frame 33 and a lower frame 34, respectively, constructed between the upper and lower ends of the frame 32. 35 is an earth bar installed from one end of the upper frame 33 to the other end, 36 is a power supply bar installed from one end of the lower frame 34 to the other end, and these bars 3
5 and 36 are made by bending elongated metal plates so that the cross section is approximately U-shaped. 37 is the upper frame 33
A projection protruding downward from the locking pieces 21, 2
2, the gap 3 between the locking pieces 27 and 28
9 has a size that can be fitted into the ground bar 35, and a locking groove 40 is formed between the ground bar 35 and the earth bar 35. 41
is a protrusion that projects upward from the lower frame 34, has a size that allows it to fit into both of the spacers 38 and 39, and forms a locking groove 42 between it and the power supply bar 36.

A plurality of electrode plates having the above configuration are divided into a ground electrode plate 43 and a high voltage electrode plate 44.
3, with the current-carrying terminal piece 26 facing upward,
is fitted into the protrusion 37, and the engaging piece 24 is engaged with the locking groove 40 while bending the current-carrying terminal piece 26,
The conductive surface 25 is brought into pressure contact with the lower surface of the earth bar 35, and the spacing portion 39 is fitted into the projection 41, and the high-voltage electrode plate 44 is connected to the current-carrying terminal piece 2.
6 facing downward, fit the spacing part 38 into the protrusion 41, and while bending the current-carrying terminal piece 26, insert the engaging piece 24.
is engaged with the locking groove 42 to bring the conductive surface 25 into pressure contact with the upper surface of the power supply bar 36, and at the same time, the spacer 39
The ground electrode plate 43 and the high voltage electrode plate 44 are installed alternately at intervals defined by the spacer protrusion groups 19 and 20.

In the present invention, the conductive surface may be provided with a conductive material other than metal foil or other conductive paint, and the conductive surface may be provided on both sides of the thin plate 15.

E. Effect Electrode plates 43 and 44 constructed as described above
The tips of the rear spacer protrusions 19a, 20a fit into the recesses of the front spacer protrusions 19a, 20a at their center portions, so that they are sequentially connected so as not to shift from each other. Spacer projections 19a, 20 of each electrode plate 43, 44
The portions extending from both ends of a to both ends of the thin plate 15 are supported at a constant interval because the side ends of the spacer protrusion groups 19 and 20 abut against the surface of the thin plate 15. The current-carrying terminal piece 26 of each electrode plate 43, 44 electrically contacts the earth bar 35 and the power supply bar 36 in a bent state, and the locking groove 4 of the engagement piece 24
0 and 42, the contact state is locked as described above.

F. Effect of the invention Since the invention is constructed as described above, when the electrode plate is installed on the frame of the collector, the current-carrying terminal piece is always bent and locked in contact with the earth bar or the power supply bar, Even after a period of time has elapsed, poor contact or inability to contact can be prevented.

[Brief explanation of the drawing]

Fig. 1 is a front view of the electrode plate according to the present invention, Fig. 2 is a side view, Fig. 3 is a front view of the electrode plate installed on a collector frame, Fig. 4 is a side view of the same state, and Fig. 4 is a side view of the electrode plate in the same state. 5 is a front view of a conventional electrode plate, FIG. 6 is a side view of the same electrode plate, and FIG. 7 is a partially omitted side view of the same electrode plate installed on a collector frame. 15... Plastic thin plate, 16... Conductive surface, 17, 18... Insulating surface, 19, 20... Spacer protrusion group, 21, 22... Locking piece, 26...
Current-carrying terminal piece, 27, 28... Locking piece, 30... Collector frame, 35... Earth bar, 36...
Power supply bar, 40...locking groove, 42...locking groove.

Claims (1)

[Claims for Utility Model Registration] (1) A conductive surface is provided on the surface of a flexible plastic thin plate, and locking pieces that lock onto the frame of the collector are provided on both edges of the thin plate, and these One of the locking pieces has a conductive surface connected to the conductive surface and is provided with a current-carrying terminal piece that is brought into contact with either the earth bar or the power supply bar provided on the collector frame in a bent state. An electrode plate for a collector of an electrostatic precipitator, wherein the plate is provided with an engaging piece shaped to engage either one of the locking grooves provided near the earth bar and the power supply bar on the current-carrying terminal piece. (2) The locking pieces extend parallel to each other on both ends of the thin plate, one of these locking pieces is extended, and a current-carrying terminal piece having a conductive surface connected to the conductive surface is provided. An electrode plate for a collector of an electrostatic precipitator according to claim 1, which is provided with an engaging piece bent inward from the tip of the current-carrying terminal piece. (3) The thin plate is provided with a conductive surface along the center of one or both sides and an insulating surface along both sides of the conductive surface, and the insulating surface has an appropriate number of spacer protrusions spaced at appropriate intervals. An electrode plate for a collector of an electrostatic precipitator according to claim 1 or 2 of the registered utility model claim, comprising: