JP4610092B2 - Ionizer and its discharge electrode bar - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a technique for generating a band-like ion flow for controlling static electricity in air, and more particularly to an ionizer and a discharge electrode bar thereof.
[0002]
[Prior art]
Static electricity removal (static elimination) is performed to control static electricity in the air, such as cleaning in a clean room and preventing static charge of suspended particles. Corona discharge ionization devices are often used for this non-contact static elimination. Yes. This ionization apparatus is roughly classified into a bar type for supplying an ion flow to a relatively wide area and a nozzle type for supplying an ion flow in a spot manner depending on the size of an area for supplying an ion flow.
[0003]
The bar-type ionization apparatus includes an elongated ion flow supply means called a discharge electrode bar, and the ion flow is discharged from the discharge electrode bar in a strip shape. This type of discharge electrode bar is suitable for static elimination of clean rooms, clean benches, and conveyors, and a plurality of discharge electrode bars are installed in order to neutralize a relatively wide area.
[0004]
In order to facilitate the installation of such a plurality of discharge electrode bars, the discharge electrode bar includes two connection ports connected to each other by an internal cable in order to receive a connector of the external cable. The control unit or the adjacent discharge electrode bar can be connected.
[0005]
In the conventional discharge electrode bar, each connection port is provided at both end portions in the longitudinal direction, and the connection ports provided at each end portion are connected to each other by an internal cable extending in the longitudinal direction inside the discharge electrode bar.
[0006]
[Problems to be solved by the invention]
The discharge electrode bar incorporates a high voltage unit as a high voltage generation source in order to supply a high voltage to the electrode. For this reason, it is not preferable to dispose an internal cable having a large electrical potential difference from the high voltage unit in the discharge electrode bar because it may cause partial discharge. In order to cope with such a problem, in the conventional discharge electrode bar, a countermeasure has been taken in which the cable extending in the longitudinal direction is separated as much as possible from the high voltage unit.
However, separating the internal cable from the high-voltage unit is a great design constraint for downsizing the discharge electrode bar.
[0007]
Accordingly, an object of the present invention is to provide an ionization apparatus including a discharge electrode bar having two connection ports, and the presence of an internal cable for connecting the two connection ports greatly restricts the design for miniaturization of the discharge electrode bar. It is an object of the present invention to provide an ionization apparatus and a discharge electrode bar thereof that can solve the problem of the problem.
[0008]
Another object of the present invention is a discharge electrode bar of an ionization apparatus, and provides an ionization apparatus capable of suppressing an increase in size due to an internal cable for connecting two connection ports of the discharge electrode bar, and a discharge electrode bar thereof. There is to do.
[0009]
[Means for Solving the Problems]
The above technical problem is, according to one aspect of the present invention,
Apart from each other in the longitudinal direction of the elongated casing viewed containing the discharge electrode bar in which a plurality of discharge electrodes are disposed, a plurality of discharge electrodes bars together or discharge electrode bars and the controller is connectable ionizer via the cable In addition, two connection ports for a connector for receiving the cable are provided at one end of the case, and the two connection ports are electrically connected to each other inside the case. This is accomplished by providing an ionizing device.
[0010]
The above technical problem is, according to another aspect of the invention,
In a discharge electrode bar for an ionization apparatus in which a plurality of discharge electrodes are arranged apart from each other in the longitudinal direction of an elongated case, the discharge electrode bar can be connected to another discharge electrode bar or a controller via a cable. , at one end of the case, the connection port for the connector receiving the cable 2 is provided, characterized in that the two connection ports are electrically connected to each other within said casing discharge This is accomplished by providing an electrode bar.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
According to the present invention, since the two connection ports for the connector are provided at one end of the case of the discharge electrode bar, a cable or an electrical conductor for electrically connecting the two connection ports is provided. It is easy to separate from the high voltage unit. For example, the high voltage unit may be disposed on the other end side of the case.
[0012]
Therefore, the conventional design restrictions on the size of the discharge electrode bar, particularly the height dimension, can be practically eliminated.
Other objects and advantages of the present invention will become apparent from the detailed description of the following examples.
[0013]
【Example】
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
FIG. 1 is a diagram for explaining a discharge electrode bar of an ionization apparatus according to an embodiment. The discharge electrode bar 1 has a case 2. Inside the case 2, an air unit 3 and a discharge electrode 4 are arranged in the lower region, and in the upper region, a high voltage unit 5, a power supply circuit and a display circuit, for example, And a control unit 6 including a CPU is arranged. The case 2 preferably includes an intermediate wall 7 that substantially partitions an upper region and a lower region therein. Since the discharge electrode bar 1 is disposed in an upper region where the high voltage unit 5 and the control unit 6 do not interfere with the discharge electrode 4, the interval between the discharge electrodes 4 can be freely set.
[0014]
In the air unit 3, adjacent air units 3 are connected to each other via a flexible tube 8, and an air port 9 provided on both end faces of the discharge electrode bar 1 (case 2) and an air unit adjacent thereto are provided. 3 are connected. The airport 9 is optional, but air is supplied from an air source (not shown), and the air supplied to the air unit 3 is discharged from the vicinity of the discharge electrode 4 to the outside.
[0015]
One end portion of the case 2 is provided with two connection ports 10 electrically connected to each other (in FIG. 1, only one port is drawn from the illustrated relationship). The connection port 10 will be described in detail later. Reference numeral 11 shown in FIG. 1 denotes a GND (ground) plate.
[0016]
As can be understood from FIG. 2, the case 2 is constituted by a pair of case division bodies 15 divided into left and right. The left and right case division bodies 15 are extruded products made of a plastic material, and the upper ends of the left and right case division bodies 15 can be slidably fitted. That is, in the illustrated case 2, an enlarged head 16 projecting in the lateral direction is formed at the upper end of one case divided body 15, and the enlarged head 16 has a full length along the upper edge of the one case divided body 15. It extends over. Although the illustration of the other case divided body is omitted, a groove having a shape complementary to the contour of the enlarged head 16 is formed at the upper end thereof, and this groove is elongated along the upper edge of the other case divided body. It extends in the direction and both ends of the groove are open so that the enlarged head 16 can be received from either end. The expansion head 16 is inserted from one end of the groove, and the left and right case division bodies 15 are slid relative to each other in the longitudinal direction so that the left and right case division bodies 15 cannot be detached and opened toward the lower end. An inverted U-shaped cross-sectional shape is made. Both ends of the pair of case divided bodies 15 thus integrated are closed by caps not shown.
[0017]
FIG. 2 is an exploded perspective view for explaining an assembly process of the high voltage unit 5 and the control unit 6 arranged on the upper side of the case 2. Reference numeral 18 in FIG. 2 indicates a high-voltage unit housing box having a rectangular cross section. As will be described later, the high-voltage unit 5 and a protective agent such as silicon are stored in the box 18 in a sealed state.
[0018]
The control unit 6 described above includes a modular board 19, a power supply board 20, a CPU board 21, and the like. The modular board 19 is fixed to the side wall 23 of one case divided body 15 with screws 25 via a pedestal 22. The Also, a plastic engaging pin 26 is fixed to the side wall 23 of the case divided body 15 by using the screw 25, and the hook-shaped retaining tip of the engaging pin 26 is connected to the power supply board 20 and the CPU board 21. The power supply board 20 and the CPU board 21 are fixed to the side wall 23 of the case divided body 15 via the engagement pins 26. Further, the high voltage unit accommodation box 18 in which the high voltage unit 4 is stored is fixed to the side wall 23 of the case divided body 15 using a double-sided tape 27. An air unit 3 is provided below the intermediate wall portion 7.
[0019]
The modular substrate 19, the power supply substrate 20, the CPU substrate 21, and the high voltage unit housing box 18 fixed to the case divided body 15 by the above-described method are the base plate portion, that is, the intermediate wall portion 7 formed on the side wall 23 of the case divided body 15. Are arranged in a line along the longitudinal direction of the case divided body 15. As can be seen from FIG. 2, the modular substrate 19 is disposed on one end side of the case divided body 15, and the high voltage unit accommodation box 18 (high voltage unit 5) is disposed on the other end side of the case divided body 15.
[0020]
The modular board 19 has two connector connection ports 10 arranged so as to face opposite to each other, and the two connection ports 10 are electrically connected by wiring or a cable (not shown) on the modular board 19. Has been. Each of the left and right case divisions 15 has an opening 30 at a position corresponding to the adjacent connector connection port 10.
[0021]
FIG. 3 shows an example of the arrangement of the plurality of discharge electrode bars 1. In FIG. 3, a plurality of discharge electrode bars 1 arranged side by side are set as a set 33, and the set 33 is arranged in a plurality of columns. The discharge electrode bars 1 belonging to each set 33 are arranged with the connector openings 30 (connector connection ports 10) facing each other, and the adjacent discharge electrode bars 1 are adjacent to each other. Are connected by a relatively short external modular cable 35 which is approximately equal to the distance between them.
[0022]
A relatively long external modular cable 37 is connected to one modular cable connector opening 30 of the discharge electrode bar 1 located at the head of each set 33, and from the controller 36 to each discharge electrode bar 1 via this cable 37. On the other hand, while communicating the power and various set values for each discharge electrode bar 1, for example, the set value for the ion generation period and the electrode cleaning alarm, each discharge electrode bar 1 is connected to the controller 36 of the discharge electrode bar 1. For example, an ion balance signal and a signal related to the amount of generated ions are communicated indicating the static elimination state. In order to execute such a serial signal, specifically, each discharge electrode bar 1 has a function of generating an ID code unique to each discharge electrode bar and supplies this information to the controller 36. The controller 36 can also provide information such as an alarm to the specific discharge electrode bar 1. The electric power supplied to the first discharge electrode bar 1 and the common information for each discharge electrode bar 1 are supplied to the other discharge electrode bars 1 belonging to each set 33 through the relatively short external modular cable 35. The controller 36 is controlled by a computer (not shown) as in the prior art.
[0023]
As can be understood from the above description, since two connector openings 30 (connection ports 10) are provided at one end portion of the discharge electrode bar 1, the internal cable is used to electrically connect the connection ports 10 to each other. It can be located at one end of the bar 1. For example, when connector openings (connection ports) are provided on both end surfaces of the discharge electrode bar 1, an internal cable extending in the longitudinal direction is disposed inside the discharge electrode bar 1 to connect the two connection ports to each other. In order to increase the distance between the internal cable and the high voltage unit 5, the height dimension of the discharge electrode bar 1 must be increased. However, as in the embodiment of the present invention, the discharge electrode Since the two connection ports 10 are provided at one end portion of the bar 1, an internal cable extending in the longitudinal direction is not necessary, and the height dimension of the discharge electrode bar 1 can be reduced.
[0024]
Further, as in the embodiment, the connection port 10 is provided at one end portion of the discharge electrode bar 1 and the high voltage unit 5 is provided at the other end portion far away from the connection port 10. In fact, the case 2 of the discharge electrode bar 1 can be designed without taking into account.
[Brief description of the drawings]
FIG. 1 is a view for explaining the structure of a discharge electrode bar of an embodiment.
FIG. 2 is an exploded perspective view of a discharge electrode bar according to an embodiment.
FIG. 3 is a diagram for explaining an example of a layout related to installation of discharge electrode bars according to an embodiment.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Discharge electrode bar 2 Case 4 Discharge electrode 5 High voltage unit 10 Connection port 19 Modular substrate 30 Case opening (connection port faces)

Claims (9)

Apart from each other in the longitudinal direction of the elongated casing viewed containing the discharge electrode bar in which a plurality of discharge electrodes are disposed, a plurality of discharge electrodes bars together or discharge electrode bars and the controller is connectable ionizer via the cable In addition, two connection ports for a connector for receiving the cable are provided at one end of the case, and the two connection ports are electrically connected to each other inside the case. Ionizing device. A high voltage unit for generating a high voltage to be supplied to the discharge electrode is provided inside the case, and the high voltage unit is disposed at the other end portion of the case, and the two connection ports and the high voltage unit are provided. The ionization apparatus according to claim 1, wherein the first and second ends of the elongated case are spaced apart from each other. The high-voltage unit that generates a high voltage to be supplied to the discharge electrode is provided inside the case, and the high-voltage unit is disposed in an upper region that does not interfere with the discharge electrode. Ionizer. Inside the case, an air passage is arranged in a lower region of the high voltage unit,
4. The ionization apparatus according to claim 3, wherein the air passage extends in a longitudinal direction of the case, and air supplied from the outside is discharged to the outside from around each discharge electrode through the air passage. The case has two side walls facing each other;
One of the two connection ports is provided on one side wall of the two opposite side walls of the case, and the other connection port of the two connection ports is opposite to the case. The ionization apparatus according to claim 1, wherein the ionization apparatus is provided on the other side wall of the two side walls. In a discharge electrode bar for an ionization apparatus in which a plurality of discharge electrodes are arranged apart from each other in the longitudinal direction of an elongated case, the discharge electrode bar can be connected to another discharge electrode bar or a controller via a cable. , at one end of the case, the connection port for the connector receiving the cable 2 is provided, characterized in that the two connection ports are electrically connected to each other within said casing discharge Electrode bar. A high voltage unit for generating a high voltage to be supplied to the discharge electrode is provided inside the case, and the high voltage unit is disposed at the other end portion of the case, so that the two connection ports and the high voltage unit are provided. The discharge electrode bar according to claim 6 , wherein the elongated case is disposed at a distance from one end side and the other end side of the elongated case. The high-voltage unit that generates a high voltage to be supplied to the discharge electrode is provided inside the case, and the high-voltage unit is disposed in an upper region that does not interfere with the discharge electrode. Discharge electrode bar. The discharge electrode bar according to any one of claims 6 to 8 , wherein each of the two connection ports is provided on each of two opposite side walls of the case .

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