JPS6316590A - Solid discharger - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

Detailed Description of the Invention (Technical Field) The present invention is applicable to electrostatic recording devices such as collar photocopiers and facsimiles;
The present invention relates to a solid state discharge device used as a charger.

(Conventional technology) Excludes electrostatic recording devices such as copying machines and facsimile machines.

As a charger, instead of the thin wire type corona discharger used conventionally, a first charger is used with a dielectric material in between. Plans are being made to put a flat solid state discharge device equipped with a second electric rod into practical use, and
Various supporting means have been proposed. However, since the plate-shaped solid-state discharge device uses the flat part as the discharge surface, it has poor ventilation (ozone generated near the first electrode tends to accumulate), and it takes up space in the width direction. It is unsuitable as a charger and charger for drum-type photoreceptors, is susceptible to warping of the plate surface, requires precision gearing with the object to be charged, and requires precision in the supporting means. There was a problem.

(Objective) The present invention solves the above-mentioned drawbacks of the prior art, eliminates ozone retention, and eliminates the need for small-diameter drum-type photoreceptors.

An object of the present invention is to provide a solid state discharge device suitable for a charger.

(Structure) For this purpose, the present invention provides a solid-state discharge device with a discharge surface near the longitudinal end face parallel to a plate-shaped support member disposed approximately perpendicularly to the charged object. It is supported so that it is almost perpendicular to the other side.

Hereinafter, each embodiment of the present invention will be described based on the drawings.

FIG. 1 is an exploded perspective view of a solid state discharge device and its mounting mechanism according to an embodiment of the present invention, and FIG. 2 is a sectional view of the same, showing the state of mounting.

A plate-shaped solid state discharge device 1 includes a first electrode 4 sandwiched between an insulator 2 and an insulator 3, and a second electrode ff1 disposed on the insulator 3.
It is composed of a dielectric 6 that covers the second electric current I5. The solid-state discharge device 1 is arranged substantially perpendicularly to the charged body 20, with the vicinity of the longitudinal end surface serving as a discharge surface, for reasons described later.

The solid state discharge device 1 is provided with a hole 9 as shown, and the support member 10 is provided with a support pin 11 at a position corresponding to the hole 9. The internal shape portion 9a of the hole 9 is large enough for the head of the support pin 11 to pass through.
The width of the longitudinal portion 9b is large enough to allow the solid-state discharge device 1 to be moved horizontally with respect to the diameter of the neck of the support pin 11 without causing excessive play. The solid discharge device l is moved in the direction of the arrow 30, that is, parallel to the charged object 20, and the removal stopper 12 and the support pin 11 are moved.
is fixed to the support member 10 by.

Solid discharge! The gap between the Ia placement 1 and the charged object 20 is accurately determined by the hole 9 and the support pin 11.

Further, the solid state discharge device 1 is provided with an electrode exposed portion 14 for terminal connection, and the support member 10 is provided with a terminal 15 so that the electric pFAn output portion 14 and the terminal 15 are connected in a fixed state. Can be done. Incidentally, this support member 10 supports the object to be charged 2
Since the solid state discharge device 1 is supported parallel to the support member 10 with its flat plate surface in close contact with the support member 10, as a result, the solid state discharge device 1 is disposed almost perpendicularly to the support member 10. The i-device 1 is arranged substantially perpendicular to the charged object 20. FIG. 3 is a perspective view showing another embodiment.

The solid-state discharge device 1 is provided with a notch 13 for positioning as shown in the figure, and the support member 10 is provided with a positioning pin 14 at a position corresponding to the notch 13. . The solid state discharge device l is provided with the entire surface of the shaded area 40 or -
- It is fixed to the support member 10 with a connecting agent, double-sided tape, or the like. The gap with the charged object 20 is accurately determined by the notch 13 and the positioning pin 14.

Still another embodiment is shown in FIG.

The solid-state discharge device l has an L-shaped notch 1 as shown in the figure.
5 is provided, and a support pin 11 is provided at a position corresponding to this on the support member lO. solid state discharge device
is moved in the direction of the arrow 31, and is fixed to the support member by the retaining claw 12 and the support pin 11, and the electrode exposed portion 16 and the terminal 17 are connected in a fixed state.

FIGS. 5 to 10 show specific examples of the solid state discharge device.

The solid state discharge device 1 is composed of an insulator, a dielectric 6, a first electrode 4, and a second electrode 5. All of them are used by being arranged substantially perpendicular to the object to be charged.

The structures shown in FIGS. 5, 8, 9, and 10 have a dielectric 6
Although the first electrode 4 is exposed at the top, we want to shift its mounting position. Figure 6 has basically the same structure as the one shown in Figure 1, but the electrode size and mounting position are different. . Further, in the case shown in FIG. 7, the first electrode is exposed on the outside of the dielectric 6 having the shape shown in FIG.

Since the solid-state discharge device 1 of the present invention has a configuration in which it is used by being disposed almost perpendicularly to the object to be charged 20, it is less susceptible to warpage than conventional solid-state discharge devices. By supporting the charged object 20 as shown in FIG.
The intensity of the gap between the two electrodes increases, and uniform charging can be achieved.

(Effects) The present invention is as described above, and since the solid-state discharge device is used by being arranged almost perpendicularly to the object to be charged,
Compared to conventional solid-state discharge devices, it has the advantages of better ventilation, less ozone retention, and is compatible with small-diameter drum-shaped photoreceptors, and is designed and placed in a fixed relationship with the charged object in advance. Since the solid-state discharge device is supported by the support member that is provided with the solid-state discharge device, the gap can be accurately maintained with respect to the charged object.

[Brief explanation of drawings]

FIG. 1 is an exploded perspective view of a solid state discharge device and its mounting mechanism according to an embodiment of the present invention, FIG. FIG. 4 is an exploded perspective view similar to FIG. 1 according to the third embodiment, FIG. 5, FIG. 6, FIG. 7, FIG. 8, FIG. 10A and 10B are diagrams showing respective configuration examples of a solid-state discharge device. DESCRIPTION OF SYMBOLS 1... Solid discharge device, 4... First electrode, 5... Second electrode, 6... Dielectric, 9, 13.15... Hole, notch, 10... Support member , 11.14... Support pin, positioning pin, 20... Charged object. Figure 4

Claims (1)

[Claims] a dielectric, a first electrode and a second electrode disposed through the dielectric;
A plate-shaped solid body comprising an electrode and a means for applying an alternating current voltage between the first electrode and the second electrode in order to generate ions near both electrodes, and using the vicinity of the longitudinal end face as a discharge surface. A discharge device in which a hole or cutout for positioning is provided in the flat part of the solid state discharge device, and a support pin or positioning pin is provided in an insulating plate-shaped support member installed almost perpendicularly to the charged object. 1. A solid-state discharge device, wherein the solid-state discharge device is attached to a support member so as to be substantially perpendicular to an object to be charged.