JPH0160300B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention provides three methods in which charged powder is embedded in the dielectric layer.
The present invention relates to a contact-moving multilayer electric field curtain device that is electrodynamically driven in repulsion by a traveling wave unequal alternating electric field array generated by a group of adjacent electrode arrays in one phase or four phases.

Conventionally, a contact type single-phase electric field curtain device can be easily manufactured by etching metal foil on a dielectric sheet to form an electrode array group (pattern).

However, in the case of a multiphase electric field curtain device, it is physically impossible to form a group of electrode rows on the same plane of a dielectric sheet without intersecting the electrodes.

Therefore, as shown in Japanese Patent Publication No. 55-40296, notch grooves of different lengths are formed at both ends of a dielectric sheet, and electrodes are arranged in a rectangular shape across these notch grooves, so that each electrode can be arranged in a three-dimensional manner. A multiphase electric field curtain device has been proposed that solves the above-mentioned problem by cross-scanning.

However, with this device, the task of arranging the electrodes in a rectangular shape across the notched grooves is extremely troublesome, making the manufacturing process troublesome, and the device has disadvantages in that it is extremely difficult to mass-produce.

The present invention has been made in view of the above-mentioned circumstances, and its purpose is to provide a multiphase electric field curtain device in which the electrodes of each electrode row group do not intersect with each other on the same plane and have excellent productivity. It is.

Embodiments of the present invention will be described below with reference to the drawings.

FIGS. 1 and 2 are a plan view and a cross-sectional view taken along the - line, respectively, showing a state in which an electrode array group is formed on the first dielectric layer, and 1 in the figure shows polyester, polyamide, etc., which will become the first dielectric layer. Approximately 100μ thick made of dielectric material
m U-phase electrode substrate, on the surface of which are etched a U-phase electrode array group 2 with a thickness of 20 to 50 μm made of a conductive material such as copper, aluminum or stainless steel, and a U-phase electrode array group 2 made of the same material as above. A U-phase electric wire 3 that supplies power to the U-electrode array group 2 and a U-phase terminal 4 that connects a lead wire from a power source made of the same material as described above are formed in the same process.

The U-phase electrode row group 2 has an electrode width a of 0.3 mm and an electrode spacing a+2b of 4.3 mm.

3 and 4 are a plan view and a sectional view taken along the - line, respectively, showing a state in which an electrode array group is formed on the second dielectric layer, and 5 in the figure is made of the same material as mentioned above, which becomes the second dielectric layer. This is a V/W phase electrode substrate consisting of V phase electrode array group 6,
V-phase distribution line 7, V-phase terminal 8, W-phase electrode array group 9, W
A phase distribution line 10 and a W-phase terminal 11 are respectively formed.

The electrode width a of the V/W phase electrode row groups 6 and 9 is 0.3.
mm, mutual electrode spacing b, a+2b is 2 mm, 4,
They are arranged alternately to make 3mm.

In FIG. 3, 5a is a notch formed at the end of the V/W phase electrode substrate 5, and is formed to face the U phase terminal 4 of the U phase electrode substrate 5.

Then, on the electrode array group forming surface side of the V/W phase electrode substrate 5, as shown by the imaginary line in FIG.
An insulating silicone rubber sheet having a thickness of 0.4 to 0.6 mm and having the same planar shape as the V/W phase electrode substrate 5 is pressed and vulcanized to cover the insulating layer 12.

After this, as shown in FIG. 5, FIG. 6, and FIG.
Each electrode row group 2, 6,
Attach them with an insulating adhesive so that the electrode spacing of No. 9 is b (20 mm).

As a result, the first dielectric layer 1 and the second dielectric layer 5
A U-phase electrode array group 2 is located at the boundary between the second dielectric layer 5 and the second dielectric layer 5.
A three-phase electric field curtain device is provided in which surface V/W phase electrode array groups 6 and 9 are provided, and the electrodes of each electrode array group 2, 6, and 9 do not intersect with each other.

At this time, the right end of FIG. 5 is W as shown in FIG.
Since the phase distribution line 10 and the U-phase electrode array group 2 intersect three-dimensionally at the F portion via the second dielectric layer 1, the dielectric strength of this portion is insufficient.

Therefore, as shown in Figure 8, the second
Between the dielectric layer 5 and the first dielectric layer 1, there is a thickness of 0.3~
A 0.6 mm insulating sheet 14 is interposed to improve dielectric strength.

Note that since this portion is outside the effective action range of the electric field curtain device, the performance will not be degraded even if the insulating sheet 14 is interposed.

Further, as shown in FIGS. 9 and 10, the U-phase terminal 4 is exposed to the surface from the notch 5a, and the U-phase terminal 4,
Since the V-phase terminal 8 and the W-phase terminal 11 are arranged consecutively, a lead wire 16 is soldered to each terminal 4, 8, 11, and this part is connected to the insulating holding member 1.
It is molded with 5.

In addition, numeral 13 in the drawing is an adhesive layer provided on the mounting surface side of the electric field curtain device (the surface opposite to the surface on which the electric field curtain is formed).

FIG. 11 is a schematic diagram of a state in which charged particles 17 are transported by the electric field curtain device, and the charged particles 17 are transported in the direction of the arrow.

The applications of the electric field curtain device described above are as follows:
It can be widely used not only in electrophotographic copying machines but also in electrostatic painting, electrostatic flocking equipment, etc. for transporting and preventing charged particles or charged short fibers from adhering.

Since the present invention is configured as described above, the electrodes of each electrode row group do not intersect with each other on the same plane.

In addition, it can be manufactured by laminating and fixing the two dielectric layers 1 and 5 after forming the electrode array groups 2, 6, and 9 on one side of the two dielectric layers 1 and 5, respectively, resulting in a highly productive multiphase It becomes an electric field curtain device.

[Brief explanation of drawings]

Fig. 1 is a plan view of the U-phase electrode array group structure, Fig. 2 is a sectional view taken along the - line in Fig. 1, Fig. 3 is a plan view of the V-phase/W-phase electrode array group structure, and Fig. 4 is a plan view of the U-phase electrode array group structure. Figure 3 -
A line cross-sectional view, FIG. 5 is a plan view of a state in which both structures are bonded together after providing an insulating layer on the electrode surface side of the V/W phase electrode array group structure, and FIG. 6 is a - line in FIG. A plan view, FIG. 7 is an explanatory diagram of the electrode three-dimensional intersection in FIG. 5, FIG. 8 is a sectional view taken along the - line in FIG.
The figure is a plan view of the state in which lead wires are connected to the terminals in Figure 5, Figure 10 is a sectional view taken along the - line in Figure 9, and
Figure 1 is a schematic diagram of a three-phase electric field curtain device. 1 and 5 are dielectric layers, and 2, 6, and 9 are electrode row groups.

Claims (1)

[Claims] 1 An electrode array group 2 for at least one phase is provided on the interface between the two laminated dielectric layers 1 and 5, and electrode array groups 6 and 9 of other phases are all arranged in parallel with the electrode array group 2 in a staggered manner. A multiphase electric field curtain device characterized in that the electrodes are provided on the outer surface of the one dielectric layer 5 so that the intervals between the electrodes are equal.