JPH075872Y2 - Collector electrode plate - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of application] The present invention relates to a collector electrode plate used for assembling a collector of an electrostatic precipitator incorporated in an air cleaner.

[Conventional technology]

The electric dust collector is composed of an ionizer that charges dust particles contained in the air sucked into the machine, and a collector that collects the dust particles charged by the ionizer.

This collector is assembled by alternately stacking a ground electrode plate and a high voltage electrode plate on a frame with a gap therebetween.

As shown in FIGS. 5 to 7, a conventional collector electrode plate is coated with a conductive paint along the central portion of one side of an electrode substrate 19 formed of an insulating sheet such as polypropylene to form a conductive layer 20, In many cases, the spacers 22 and 22 are formed on the insulating portions 21 and 21 on both sides of the substrate 19 and are molded.

[Problems to be solved by the device]

In the above-mentioned conventional collector electrode, since the conductive layer 20 is strongly adhered to the surface of the insulating sheet such as polypropylene, the conductive layer 20 is formed by applying a conductive paint having a property of easily adhering to the insulating sheet, for example, XC-32. Although it was formed, this conductive paint has weak oil resistance, especially oil resistance to vegetable oil, so if dust of vegetable oil is collected on the collector electrode plate during operation of the air cleaner, the conductive layer However, there is a drawback that the coating film gradually deteriorates and the life of the electrode plate is shortened.

An object of the present invention is to provide a collector electrode plate which can eliminate the above drawbacks.

[Means for Solving the Problems]

In order to achieve the above object, the present invention provides a collector electrode plate in which a conductive layer formed of a coating film of a conductive paint is formed on an electrode substrate formed of an insulating sheet having high electric insulation and good thermoplasticity, A conductive coating having a property of easily adhering to the insulating sheet is applied to the electrode substrate to form a first conductive layer, and oil resistance on the first conductive layer and adhesion to the insulating sheet are difficult. The second conductive layer is formed by overcoating the first conductive layer with a conductive coating material having a property of easily adhering so as to be slightly narrower than the width of the first conductive layer.

〔Example〕

An embodiment of the present invention will be described below with reference to FIGS. 1 to 4. Reference numeral 1 denotes an electrode substrate formed of a material having high electric insulation and good thermoplasticity, for example, an insulating sheet of polypropylene. A conductive terminal piece 3 is continuously provided to the end portion via a narrow connecting piece 2, and an insulating terminal piece 5 is continuously provided to the other end via a narrow connecting piece 4. Reference numeral 6 denotes a first conductive layer formed on one surface of the substrate 1 from the vicinity of the end on the connecting piece 4 side to the end on the connecting piece 2 side and one surface of the connecting piece 2 and the conductive terminal piece 3, such as polypropylene. Conductive paint that has the property of easily adhering to the insulating sheet of
For example, it is formed by applying XC-32. Reference numeral 7 is a second conductive layer formed by overcoating the first conductive layer 6 and having a width W ₂ of the first conductive layer 6
Is slightly narrower than the width W ₁ , and is coated with a conductive paint, such as XC-55, which has oil resistance and characteristics that it is difficult to adhere to the insulating sheet but easily adhere to the first conductive layer 6. .
Reference numeral 8 is a spacer projection group projecting from the plate surface opposite to the plate surface on which the conductive layers 6 and 7 are formed in the insulating portions on both sides of the substrate 1, 9 is a collector electrode plate having the above configuration, and 10 is a collector frame. , A bottom frame 11 and a hollow vertical frame which stands upright from both ends of the bottom frame 11, and in which the inlets 12 and 13 for inserting the connecting pieces 2 and 4 of the collector electrode plate 9 are provided in the vertical direction on the inner side surfaces thereof. Vertical frame 14, 15
And the upper frame that spans between the upper ends of the vertical frames 14 and 15.
The vertical frames 14 and 15 include conductive pieces 17 and 18, respectively.

In this collector frame 10, with the upper frame 16 removed, the first collector electrode plate 9 is inserted from the upper ends of the vertical frames 14 and 15 into the connecting pieces 2 and 4 into the inlets 12 and 13 as well as the conductive terminal pieces. 3. Insert the insulating terminal piece 5 into the hollow parts of the vertical frames 14 and 15 and lower it.
Stack on the bottom frame 11. Next, the second collector electrode plate 9 is arranged so that the conductive terminal piece 3 and the insulating terminal piece 5 are opposite to those of the first collector electrode plate 9 in the vertical frame 1.
Insert the connecting pieces 4 and 2 into the inlets 12 and 13 from the upper end side of the 4 and 15, and insert the insulating terminal piece 5 and the conductive terminal piece 3 into the vertical frame.
It is inserted into the hollow portions of 14 and 15 and lowered, and is placed on the first collector electrode plate 9 at intervals by the spacer projection group 8. The above operations are repeated for each of the third and subsequent collector electrode plates 9 so that the conductive terminal pieces 3 and the insulating terminal pieces 5 are alternately laminated in the opposite direction, and finally the upper frame 16 Is hung between the upper ends of the vertical frames 14 and 15 and fixed. Then the vertical frame 14,
Inserting the conductive pieces 30 and 31 into the hollow part of 15 from the inlets (not shown) provided at the lower end side, and bending each conductive terminal piece 3 so as to make electrical contact with the conductive pieces 30 and 31. To assemble the collector.

In this collector, one conductive piece 17 is connected to the high-voltage side of the high-voltage power supply, and the other conductive piece 18 is connected to the ground side of the high-voltage power supply, and each collector electrode plate 9 is connected to the high-voltage side electrode plate and the ground-side electrode. The plates are alternately laminated, and the air containing the dust particles charged by the ionizer is passed through the gaps between the plates, so that the charged dust particles are electrically conductive on the ground side or the high voltage side of the collector electrode plate 9. Is to be collected in.

[Effect of device]

Since the present invention is configured as described above, a conductive layer that adheres strongly to the plate surface of the electrode substrate formed of an insulating sheet such as polypropylene and has strong oil resistance is formed, and it is used during operation of the air cleaner. In addition, even if dust such as vegetable oil adheres to the conductive layer, the coating film of the conductive layer can be prevented from deteriorating and the collector electrode plate can have a long service life. Moreover, since the width of the second conductive layer is made slightly narrower than the width of the first conductive layer, the second conductive layer does not protrude from the first conductive layer in actual production. The conductive layers of the high-voltage electrode plate and the grounded electrode plate are not in contact with each other and electrically short-circuited, and the distance from the end of the electrode substrate to the second conductive layer is not shortened. Therefore, the insulation distance between the high-voltage electrode plates and the ground electrode plates, which are alternately laminated, is not shortened, electrical leakage does not occur, and thus the dust collection effect can be prevented from lowering.

[Brief description of drawings]

1 to 4 show an embodiment of the present invention. FIG. 1 is a plan view of a collector electrode plate, FIG. 2 is an enlarged sectional view taken along line AA of FIG. 1, and FIG. FIG. 4 is a diagram showing an example of a state where collector electrode plates are laminated on a collector frame, FIG. 4 is a plan view of the collector frame with the upper frame removed, FIG. 5 is a plan view of a conventional collector electrode plate, and FIG. FIG. 7 is a side view of the collector electrode plate, and FIG. 7 is an enlarged sectional view taken along line BB of FIG. 1 ... Electrode substrate, 6 ... 1st conductive layer, 7 ... 2nd conductive layer.

Claims (2)

[Scope of utility model registration request] 1. A collector electrode plate comprising a conductive layer formed by a coating film of a conductive paint on an electrode substrate formed of an insulating sheet made of a resin having high electric insulation and good thermoplasticity,
A conductive coating material having a property of easily adhering to the insulating sheet is applied to the electrode substrate to form a first conductive layer.
On top of the conductive layer, a conductive paint having oil resistance and a property that does not easily adhere to the insulating sheet but easily adheres to the first conductive layer is overcoated so as to be slightly narrower than the width of the first conductive layer. And a collector electrode plate formed by forming a second conductive layer. 2. The collector electrode plate according to claim 1, wherein the electrode substrate is made of polypropylene and registered as a utility model.