EP3931923B1 - Cascade insert for an ionising bar and ionising bar having a cascade insert - Google Patents

Cascade insert for an ionising bar and ionising bar having a cascade insert Download PDF

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Publication number
EP3931923B1
EP3931923B1 EP20707611.8A EP20707611A EP3931923B1 EP 3931923 B1 EP3931923 B1 EP 3931923B1 EP 20707611 A EP20707611 A EP 20707611A EP 3931923 B1 EP3931923 B1 EP 3931923B1
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EP
European Patent Office
Prior art keywords
cascade
housing
insert
accommodated
control electronics
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Active
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EP20707611.8A
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German (de)
French (fr)
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EP3931923A1 (en
Inventor
Felix Mauchle
Michael Nagel
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Gema Switzerland GmbH
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Gema Switzerland GmbH
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Publication of EP3931923A1 publication Critical patent/EP3931923A1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T19/00—Devices providing for corona discharge
    • H01T19/04—Devices providing for corona discharge having pointed electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
    • H01T19/00—Devices providing for corona discharge
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05F—STATIC ELECTRICITY; NATURALLY-OCCURRING ELECTRICITY
    • H05F3/00—Carrying-off electrostatic charges
    • H05F3/04—Carrying-off electrostatic charges by means of spark gaps or other discharge devices

Definitions

  • the present invention relates to an ionizing bar for the contact-free neutralization of electrostatic charges and/or for contact-free charging, in particular of insulating materials, and a cascade insert for such an ionizing bar.
  • this relates in particular to a rod-shaped ionization electrode which is designed as an active discharge electrode and which is used, for example, to minimize positive and/or negative charges on, in particular, moving webs of material.
  • the ionization electrode can also be used for the targeted charging of material webs.
  • the rod-shaped ionization electrode according to these embodiments has a multiplicity of needle-shaped individual electrodes arranged parallel to one another, which can be connected inductively, capacitively or resistively via an ohmic resistor to a high-voltage transformer and are provided as a single row of the multiplicity of individual electrodes arranged parallel to one another.
  • Electrodes for the corona pretreatment are known in principle from the prior art. In this context, reference is made, for example, to publication DE 1 923 098 A1 referred. With such electrodes, using a High-frequency plasma a material web surface, in particular film surface, materially modified or pretreated. Here, however, there is only charging and no discharging, and a grounded counter-electrode is required.
  • Discharge electrodes are known as passive discharge electrodes in the form of grounded tips or tongues in a large number of embodiments. There are also so-called active discharge electrodes that can be connected to a high-voltage alternating current source. They are used to discharge or eliminate the positive and/or negative charge on the surface of material webs that are preferably moved quickly, such as those used in gravure printing, for example.
  • These known active discharge electrodes usually have at least several rows of needle-shaped individual electrodes arranged parallel to one another, which are arranged parallel to one another within a row with a tip at their free end and can be connected to a high-voltage source. At least one non-insulated conductor is arranged along a row of electrodes, preferably parallel thereto.
  • the invention is based on the object of specifying a rod-shaped ionization electrode which can be used particularly flexibly and which is characterized in particular by its simple structure.
  • the cascade insert according to the invention is in particular a modular insert which can be flexibly used and/or exchanged in an ionizing bar.
  • the cascade insert itself is characterized by its modular design, which has at least one cascade circuit incorporated in a casting compound, which in turn can be optionally and if necessary replaced.
  • the cascade insert in the housing of the cascade insert there are a plurality of cascade circuits arranged one behind the other, viewed in the longitudinal direction of the housing, and each cast in potting material.
  • Control electronics preferably in the form of a block constructed in a modular manner, are accommodated in the housing of the cascade insert in order to suitably control the at least one cascade circuit of the cascade insert.
  • the control electronics are to be provided in an end area of the housing of the cascade insert and adjacent to one of the at least one cascade circuit, with the carrier, on which the plurality of electrode tips of one cascade circuit is accommodated, extending in the longitudinal direction of the housing at least in regions over the end area of the housing, in which the control electronics are accommodated.
  • an active electrode arrangement can be provided over the entire length of the cascade insert.
  • At least one electrical connection for power supply of the at least one cascade circuit and at least one data interface for data communication with the control electronics are preferably provided in an end face of an end region of the housing in which the control electronics are accommodated.
  • the at least one data interface and the control electronics are preferably designed for bidirectional communication, in particular via a CAN bus.
  • an interface for manually entering control commands to the electronic control unit is preferably provided in an end face of the end region of the housing in which the electronic control unit is accommodated.
  • a display device in particular in the form of at least one LED and/or in the form of a display, is also preferably provided in the end face of the end region of the housing in which the control electronics are accommodated, for the optical output of Information to the user of the cascade insert.
  • the at least one cascade circuit also has at least one oscillator which is likewise encapsulated by the encapsulation material.
  • the control electronics and not the cascade circuit
  • the at least one oscillator is a digital oscillator which has no power loss.
  • the modular design of the cascade insert enables the individual cascade circuits accommodated in the housing to be switched on or off individually and as required, in order in this way to vary an operating mode of the cascade insert (and in the figurative sense of the ionizing bar, which is equipped with the cascade insert).
  • the plurality of electrode tips of the individual cascade circuits accommodated in the housing are coupled to one another, in particular capacitively, inductively, resistively or galvanically, or can be coupled as required. In this way, electrodes can be switched on or off in certain areas, which further increases the field of application of the cascade insert according to the invention.
  • the modular design of the cascade insert in particular allows the individual cascade circuits accommodated in the housing to be accommodated in the housing of the cascade insert in a preferably individually exchangeable manner and, in particular, to be galvanically connected to one another via plug-in connections.
  • the invention also relates to an ionizing bar for contact-free neutralization of electrostatic charges, in particular of insulating materials, with the ionizing bar having an outer housing in the form of an open profile and at least one cascade insert of the aforementioned type.
  • the open profile of the outer housing of the ionizing bar has a geometry adapted to the outer geometry of the housing of the cascade insert, in such a way that the at least one cascade insert can be accommodated in the outer housing of the ionizing bar so that it can be exchanged at least in some areas.
  • the outer housing has a carrier extension which is aligned with the carrier of the at least one cascade insert in the longitudinal direction of the outer housing and in which a multiplicity of electrode tips are accommodated, which are preferably galvanically coupled to the electrode tips accommodated by the carrier of the at least one cascade insert.
  • the exemplary embodiment of the ionizing bar 20 according to the invention is suitable in particular for contact-free neutralization of electrostatic charges and/or for targeted charging (either positively or negatively), in particular of insulating materials.
  • the ionizing bar 20 has an outer housing 21, for example in the form of a partially open profile.
  • a cascade insert 1 is accommodated, preferably interchangeably, at least in certain areas.
  • outer housing 21 with the cascade insert 1 accommodated at least in certain areas in the outer housing 21 can be mounted transversely to the direction of movement of a substrate to be treated (not shown in the drawings).
  • the ionizing bar 20 according to the invention is particularly suitable as an antistatic device for reducing electrostatic charges on moving webs of material. It is characterized in particular by its simplified handling, improved usability and reduced dimensions. For this purpose, all components of the ionizing bar 20 necessary for operation are integrated in the cascade insert 1, which is preferably accommodated or can be accommodated in an exchangeable manner in the outer housing 21 of the ionizing bar 20.
  • the cascade insert 1 is in particular a modular insert which can be flexibly used and/or exchanged in an ionizing bar 20 .
  • an ionizing bar 20 At the in FIG. 1 In the embodiment shown, it is provided that in the housing 2 of the cascade insert 1 two cascade circuits 3 are provided, which are arranged one behind the other as seen in the longitudinal direction of the housing 2 and are each cast in potting material 4 .
  • the carrier 5 of the cascade insert 1, on which the plurality of electrode tips of the cascade circuit 3 are accommodated extends in the longitudinal direction of the housing 2 at least in some areas over the end area of the housing 2 in which the control electronics 6 are accommodated is.
  • the at least one data interface 8 and the control electronics 6 are preferably designed for bidirectional communication, in particular via a CAN bus.
  • the cascade insert 1 has an interface for manually entering control commands to the electronic control unit 6 in an end face of the end region of the housing 2 in which the electronic control unit 6 is accommodated. Furthermore or as an alternative to this, it is advantageous if a display device, in particular in the form of at least one LED and/or in the form of a display, is also preferably provided in the end face of the end region of the housing 2, in which the control electronics 6 is accommodated, for optical purposes Outputting information to the user of the cascade insert 1.
  • FIG. 2 an embodiment of the ionizing bar 20 according to the invention for the non-contact neutralization of electrostatic charges is shown in an exploded view.
  • the ionizing bar 20 has an outer housing 21 in the form of an open profile and at least one cascade insert 1 of the aforementioned type.
  • the open profile of the outer housing 21 of the ionizing bar 20 has a geometry adapted to the outer geometry of the housing 2 of the cascade insert 1, in such a way that the at least one cascade insert 1 can be accommodated in the outer housing 21 of the ionizing bar 20 in an exchangeable manner at least in certain areas.
  • the outer housing 21 has a carrier extension 22 which is aligned with the carrier 5 of the at least one cascade insert 1 in the longitudinal direction of the outer housing 21 and in which a multiplicity of electrode tips are accommodated, which are preferably galvanically connected to the electrode tips accommodated by the carrier 5 of the at least one cascade insert 1 are coupled.
  • the ionizing bar 20 can have at least one active electrode arrangement, which has a large number of preferably navel-shaped individual electrodes, and which is electrically connected to an associated voltage source during operation of the ionizing bar 20.
  • the voltage source is expediently designed as a high-voltage source in order to apply a corresponding high voltage to the electrode arrangement. These are usually voltages of about 1,000 V and higher.
  • the voltage source is therefore also referred to below as a “high-voltage source”, although it should be clear that the voltage source can also provide lower voltages.
  • the ionizing bar 20 comprises a control device which controls the high-voltage source connected to the electrode arrangement.
  • the control device is preferably housed in the cascade insert 1 of the ionizing bar 20 .
  • the high-voltage source is preferably also arranged in the cascade insert 1 of the ionizing bar 20 . This enables an additional improvement in the handling of the ionizing bar, in particular because a separate connection 7 of the ionizing bar or of the cascade insert 1 to a high-voltage source outside of the ionizing bar 20 can be omitted.
  • the electrode arrangement of the ionization bar 20, and in particular the individual electrodes, serve the purpose of building up an electrical potential relative to a moving web of material in order to reduce any electrostatic charge that may exist on the web of material.
  • an electrical resistance can be connected upstream of the respective individual electrode.
  • the control device is expediently designed or programmed in such a way that, by controlling the high-voltage source, it builds up such an electrical potential that leads to a reduction in the electrostatic charges on the material web.
  • a negative high voltage is applied to the individual electrodes when the electrostatic charges on the material web are positive and the material web is therefore positively charged.
  • the electrostatic charges are preferably transported away from the material web, as a result of which the electrostatic charges on the material web are reduced and, if possible, neutralized.
  • the ionizing bar 20 has two active electrode arrangements, namely an active positive electrode arrangement with a plurality of active needle-shaped individual positive electrodes and an active negative electrode arrangement with a plurality of active needle-shaped individual negative electrodes.
  • the positive electrode arrangement can be connected to such a high voltage source which is positively charged and accordingly referred to as a positive high voltage source
  • the negative electrode arrangement can be connected to a negative high voltage source which can be referred to as a negative high voltage source.
  • the positive electrode arrangement and the negative electrode arrangement are expediently arranged together in the outer housing 21 of the ionizing bar 20 .
  • the respective positive electrodes and negative electrodes can run along parallel lines along the ionizing bar 20 or an end face of the ionizing bar 20 .
  • Embodiments are also conceivable in which the positive electrodes and the negative electrodes are arranged alternately along a common line.
  • Such a configuration of the ionizing bar 20 leads to a further reduction in the space required for the ionizing bar 20, because no different and spaced-apart housings 2 are required, in which the positive electrode arrangement or the negative electrode arrangement is arranged.
  • the ionizing bar 20 has power electronics which are also integrated in the cascade insert 1 .
  • the power electronics serve the purpose in particular of converting an electrical primary supply available to the ionizing bar 20 in accordance with the requirements required for the operation of the ionizing bar 20 .
  • the primary electrical supply is usually a generally available electrical supply, in particular in the form of electrical current or an electrical voltage that can be drawn from a conventional socket of an electrical network operator.
  • a low-voltage network in which about a voltage with a value of 24 VDC or 90-400 VAC with frequencies between 50 and 60 Hz, which are converted by the power electronics into the voltages, currents and frequencies required for the operation of the ionizing bar 20, in particular the respective active electrode arrangement being transformed.
  • the power electronics have at least one voltage converter, which converts a primary voltage given by the electrical primary supply into a secondary voltage.
  • the voltage converter converts the primary voltage, which is available as a low voltage, for example, into a medium voltage and/or a high voltage and makes this available, for example, to the electrode arrangement.
  • a high-voltage source is connected to the power electronics or, in particular, can be the power electronics or a part thereof.
  • the power electronics for the respective electrode arrangement or the respective high-voltage source can have at least one such voltage converter. This means that the power electronics can have at least one such voltage converter for the positive electrode arrangement or for the positive high-voltage source and at least one such other voltage converter for the electrode arrangement or the negative high-voltage source.
  • the power electronics can also have at least one frequency converter, which converts a primary frequency of the primary voltage made available by the electrical primary supply.
  • a frequency converter can reduce and/or increase the primary frequency of the primary voltage.
  • a primary AC voltage can thus be converted into a DC voltage and/or a voltage with a frequency that differs from the primary frequency of the primary voltage.
  • a separate frequency converter of the power electronics can be provided for the respective electrode arrangement.
  • the power electronics are connected to the control device in order to supply the ionizing bar 20, in particular the at least one active electrode arrangement, with electricity according to the respective requirements.
  • the control device can be designed or programmed in such a way that it controls the power electronics and in particular the respective high-voltage source in such a way that that such a voltage required to reduce the electrostatic charge of the material web is applied to the at least one electrode arrangement, in particular to the associated electrodes.
  • the ionizing bar 20 has a sensor system that is used to detect parameters of the ionizing bar 20 and/or the web of material. Parameters of an associated production facility could also be recorded with the aid of the sensors.
  • the sensor system is expediently connected to the control device and integrated in the cascade insert 1 of the ionizing bar, so that the parameters recorded by the sensor system are passed on to the control device in order to be processed further by the control device.
  • the control device can be designed or programmed in such a way that it controls the power electronics and/or the high-voltage source using the parameters detected with the aid of the sensors.
  • the parameters recorded by the sensors can be, for example, an operating state of the ionizing bar 20 and/or the material web and/or the production plant.
  • the sensor system can, for example, detect the speed at which the material web is moving and, in particular, whether the material web is motionless.
  • the sensor system can be constructed or designed in such a way that it can detect a polarity of the material web.
  • the sensor system can be constructed or configured in such a way that it can detect a neutralization current that flows at the at least one active electrode arrangement due to the reduction in the electrostatic charges on the material web.
  • the sensors can advantageously also detect the voltages and/or currents made available by the power electronics of the respective electrode arrangement and/or other components of the ionizing bar 20 or the cascade insert 1 .
  • the sensor system can be connected in particular to the power electronics and/or the respective high-voltage source and/or the respective electrode arrangement.
  • the sensor system can in particular have a sensor electrode arrangement which comprises a plurality of needle-shaped individual sensor electrodes and which is electrically connected to ground, in particular grounded, when the ionizing bar 20 is in operation.
  • the neutralization current mentioned and/or the polarity of the material web can be detected by the sensor electrode arrangement.
  • the ionizing bar 20 preferably has a signaling device arranged on a side face of the outer housing 21 .
  • the signaling device can be designed or designed in such a way that it emits a signal depending on at least one parameter of the ionizing bar 20 and/or the material web and/or the production plant, with the parameter being able to be detected in particular by the sensors.
  • the signaling device has an optical display device. In this way, a signal can be reproduced optically and consequently by means of an optical signal and/or optical signals.
  • the housing 2 of the cascade insert 1 is preferably filled with a casting compound, in which the cascade circuit 3 is preferably arranged.
  • a display device that can output at least two different optical signals is particularly suitable as the optical display device.
  • the optical display device can therefore, for example, display two different colors and is designed, for example, as an RGB display.
  • the optical display device can have at least one light-emitting diode (LED) and/or a pixel matrix, which is designed, for example, in the form of an active matrix display made of LEDs or as a liquid crystal display (LCD).
  • LED light-emitting diode
  • LCD liquid crystal display
  • the optical display device can output the optical signals using any lighting units. These include, for example, LEDs and/or LCDs as well as glow lamps, fluorescent tubes and the like.
  • the ionizing bar 20 can expediently have one or more communication interfaces.
  • a communication interface serves the purpose of communication of the ionizing bar 20 with another communication device.
  • the communication device can be, for example treated around a computer, a controller, a control panel and the like.
  • the communication device allows parameters of the ionizing bar 20 to be read out by means of the communication interface.
  • the respective communication interface can therefore be a communication connection arranged on or in the housing 2 of the cascade insert 1 , for example a USB connection 7 .
  • the communication interface can in particular be designed as a wireless communication interface which enables wireless communication, ie in particular the wireless sending and/or receiving of signals and/or communication data or data.
  • a communication point can therefore be designed in particular as a wireless LAN (WLAN) interface and can communicate with any device. Due to the wireless communication interface, a corresponding connection 7 via a cable and the like can therefore be omitted.
  • WLAN wireless LAN

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Elimination Of Static Electricity (AREA)

Description

Die vorliegende Erfindung betrifft einen Ionisationsstab zum berührungsfreien Neutralisieren elektrostatischer Aufladungen und/oder zum berührungsfreien Aufladen, insbesondere von Isoliermaterialien, sowie einen Kaskadeneinsatz für einen solchen Ionisationsstab.The present invention relates to an ionizing bar for the contact-free neutralization of electrostatic charges and/or for contact-free charging, in particular of insulating materials, and a cascade insert for such an ionizing bar.

Gemäß einem Aspekt der vorliegenden Erfindung betrifft diese insbesondere eine stabförmige Ionisationselektrode, die als aktive Entladeelektrode ausgebildet ist und die beispielsweise zum Minimieren von positiven und/oder negativen Ladungen auf insbesondere bewegten Materialbahnen dient. Alternativ hierzu kann die Ionisationselektrode auch zum gezielten Aufladen von Materialbahnen dienen. Die stabförmige Ionisationselektrode gemäß diesen Ausführungsformen weist eine Vielzahl von parallel zueinander angeordneten, nadelförmigen Einzelelektroden auf, die induktiv, kapazitiv oder resistiv über einen ohmschen Widerstand an einen Hochspannungstransformator anschließbar und als eine einzige Reihe der Vielzahl von parallel zueinander angeordneten Einzelelektroden vorgesehen sind.According to one aspect of the present invention, this relates in particular to a rod-shaped ionization electrode which is designed as an active discharge electrode and which is used, for example, to minimize positive and/or negative charges on, in particular, moving webs of material. As an alternative to this, the ionization electrode can also be used for the targeted charging of material webs. The rod-shaped ionization electrode according to these embodiments has a multiplicity of needle-shaped individual electrodes arranged parallel to one another, which can be connected inductively, capacitively or resistively via an ohmic resistor to a high-voltage transformer and are provided as a single row of the multiplicity of individual electrodes arranged parallel to one another.

Elektroden für die Corona-Vorbehandlung sind dem Prinzip nach aus dem Stand der Technik bekannt. In diesem Zusammenhang wird beispielsweise auf die Druckschrift DE 1 923 098 A1 verwiesen. Mit solchen Elektroden wird mit Hilfe eines Hochfrequenzplasmas eine Materialbahnoberfläche, insbesondere Folienoberfläche, materialtechnisch verändert bzw. vorbehandelt. Hier geschieht jedoch nur eine Aufladung und keine Entladung und es ist über dies eine an Masse liegende Gegenelektrode erforderlich.Electrodes for the corona pretreatment are known in principle from the prior art. In this context, reference is made, for example, to publication DE 1 923 098 A1 referred. With such electrodes, using a High-frequency plasma a material web surface, in particular film surface, materially modified or pretreated. Here, however, there is only charging and no discharging, and a grounded counter-electrode is required.

DE 10 2012 207 219 A1 offenbart einen Kaskadeneinsatz gemäß dem Oberbegriff des Anspruchs 1. DE 10 2012 207 219 A1 discloses a cascade insert according to the preamble of claim 1.

Entladeelektroden sind als passive Entladeelektroden in Form von geerdeten Spitzen oder Zungen in einer Vielzahl von Ausführungsformen bekannt. Darüber hinaus gibt es noch sogenannte aktive Entladeelektroden, die an eine Hochspannungs-Wechselstromquelle anschließbar sind. Sie dienen zum Entladen oder Beseitigen der positiven und/oder negativen Ladung auf der Oberfläche von vorzugsweise schnell bewegten Materialbahnen, wie sie beispielsweise beim Tiefdruck verwendet werden.Discharge electrodes are known as passive discharge electrodes in the form of grounded tips or tongues in a large number of embodiments. There are also so-called active discharge electrodes that can be connected to a high-voltage alternating current source. They are used to discharge or eliminate the positive and/or negative charge on the surface of material webs that are preferably moved quickly, such as those used in gravure printing, for example.

Zumeist weisen diese bekannten aktiven Entladeelektroden zumindest mehrere parallel zueinander angeordnete Reihen von nadelförmigen Einzelelektroden auf, die innerhalb einer Reihe parallel zueinander mit einer Spitze an ihrem freien Ende versehen angeordnet und an eine Hochspannungsquelle anschließbar sind. Längs einer Reihe von Elektroden, vorzugsweise parallel dazu ist zumindest ein nicht isolierter Leiter angeordnet.These known active discharge electrodes usually have at least several rows of needle-shaped individual electrodes arranged parallel to one another, which are arranged parallel to one another within a row with a tip at their free end and can be connected to a high-voltage source. At least one non-insulated conductor is arranged along a row of electrodes, preferably parallel thereto.

Der Erfindung liegt die Aufgabe zugrunde, eine stabförmige Ionisationselektrode anzugeben, welche besonders flexibel einsetzbar ist, und welche insbesondere sich durch ihren einfachen Aufbau auszeichnet.The invention is based on the object of specifying a rod-shaped ionization electrode which can be used particularly flexibly and which is characterized in particular by its simple structure.

Diese Aufgabe wird erfindungsgemäß durch den Gegenstand des nebengeordneten Patentanspruchs 1 gelöst, welcher einen Kaskadeneinsatz für einen Ionisationsstab zum berührungsfreien Neutralisieren elektrostatischer Aufladungen und/oder zum berührungsfreien Aufladen, insbesondere von Isoliermaterialien, betrifft, wobei der Kaskadeneinsatz ein Gehäuse mit mindestens einer Kaskadenschaltung aufweist, welche mindestens einen Transformator und eine ein- oder mehrstufige Kaskadeneinheit aufweist. Diese Schaltungseinheiten (Transformator und Kaskadeneinheit) sind mit einem Vergussmaterial vergossen, wobei der Ausgang der Kaskadenschaltung kapazitiv, induktiv oder resistiv mit einer Vielzahl von Elektrodenspitzen gekoppelt ist, die in einem sich längs der Erstreckungsrichtung des Gehäuses erstreckenden Träger aufgenommen sind.This object is achieved according to the invention by the subject matter of the independent patent claim 1, which relates to a cascade insert for an ionizing bar for the contact-free neutralization of electrostatic charges and/or for contact-free charging, in particular of insulating materials, the cascade insert having a housing with at least one cascade circuit which has at least has a transformer and a single or multi-stage cascade unit. These circuit units (transformer and cascade unit) are encapsulated with an encapsulation material, with the output of the cascade circuit being capacitively, inductively or resistively coupled to a large number of electrode tips which are accommodated in a carrier extending along the extension direction of the housing.

Bei dem Kaskadeneinsatz gemäß der Erfindung handelt es sich insbesondere um einen modular aufgebauten Einsatz, welcher flexibel bei einem Ionisationsstab eingesetzt und/oder ausgetauscht werden kann. Darüber hinaus zeichnet sich der Kaskadeneinsatz selber durch seinen modularen Aufbau aus, welcher mindestens eine in einer Vergussmasse aufgenommene Kaskadenschaltung aufweist, welche wiederum wahlweise und bedarfsweise ausgetauscht werden kann.The cascade insert according to the invention is in particular a modular insert which can be flexibly used and/or exchanged in an ionizing bar. In addition, the cascade insert itself is characterized by its modular design, which has at least one cascade circuit incorporated in a casting compound, which in turn can be optionally and if necessary replaced.

So ist gemäß einer vorteilhaften Realisierung des erfindungsgemäßen Kaskadeneinsatzes vorgesehen, dass in dem Gehäuse des Kaskadeneinsatzes eine Vielzahl von in Längsrichtung des Gehäuses gesehen hintereinander angeordnete und jeweils in Vergussmaterial eingegossene Kaskadenschaltungen vorgesehen sind.Thus, according to an advantageous realization of the cascade insert according to the invention, it is provided that in the housing of the cascade insert there are a plurality of cascade circuits arranged one behind the other, viewed in the longitudinal direction of the housing, and each cast in potting material.

In dem Gehäuse des Kaskadeneinsatzes ist eine Ansteuerelektronik, vorzugsweise in Gestalt eines modulhaft aufgebauten Blockes, aufgenommen, um die mindestens eine Kaskadenschaltung des Kaskadeneinsatzes geeignet anzusteuern. Die Ansteuerelektronik ist in einen Endbereich des Gehäuses des Kaskadeneinsatzes und benachbart zu einer der mindestens einen Kaskadenschaltung vorzusehen, wobei sich der Träger, von welchem die Vielzahl von Elektrodenspitzen der einen Kaskadenschaltung aufgenommen ist, in Längsrichtung des Gehäuses zumindest bereichsweise über den Endbereich des Gehäuses erstreckt, in welchem die Ansteuerelektronik aufgenommen ist.Control electronics, preferably in the form of a block constructed in a modular manner, are accommodated in the housing of the cascade insert in order to suitably control the at least one cascade circuit of the cascade insert. The control electronics are to be provided in an end area of the housing of the cascade insert and adjacent to one of the at least one cascade circuit, with the carrier, on which the plurality of electrode tips of one cascade circuit is accommodated, extending in the longitudinal direction of the housing at least in regions over the end area of the housing, in which the control electronics are accommodated.

Auf diese Weise kann über die gesamte Länge des Kaskadeneinsatzes eine aktive Elektrodenanordnung bereitgestellt werden.In this way, an active electrode arrangement can be provided over the entire length of the cascade insert.

Gemäß Weiterbildungen des erfindungsgemäßen Kaskadeneinsatzes ist vorgesehen, dass vorzugsweise in einer endseitigen Stirnfläche eines Endbereiches des Gehäuses, in welchem die Ansteuerelektronik aufgenommen ist, mindestens ein elektrischer Anschluss zur Energieversorgung der mindestens einen Kaskadenschaltung und mindestens eine Datenschnittstelle zur Datenkommunikation mit der Ansteuerelektronik vorgesehen sind. Die mindestens eine Datenschnittstelle und die Ansteuerelektronik sind dabei vorzugsweise für eine bidirektionale Kommunikation, insbesondere über einen CAN-Bus, ausgebildet.According to developments of the cascade insert according to the invention, it is provided that at least one electrical connection for power supply of the at least one cascade circuit and at least one data interface for data communication with the control electronics are preferably provided in an end face of an end region of the housing in which the control electronics are accommodated. The at least one data interface and the control electronics are preferably designed for bidirectional communication, in particular via a CAN bus.

Alternativ oder zusätzlich zu dem zuvor genannten Aspekt ist gemäß Ausführungsformen des erfindungsgemäßen Kaskadeneinsatzes vorgesehen, dass vorzugsweise in einer endseitigen Stirnfläche des Endbereichs des Gehäuses, in welchem die Ansteuerelektronik aufgenommen ist, eine Schnittstelle zum manuellen Eingeben von Steuerbefehlen an die Ansteuerelektronik vorgesehen ist. Ferner oder alternativ hierzu ist es von Vorteil, wenn ebenfalls vorzugsweise in der endseitigen Stirnfläche des Endbereichs des Gehäuses, in welchem die Ansteuerelektronik aufgenommen ist, eine Anzeigeeinrichtung, insbesondere in Gestalt mindestens einer LED und/oder in Gestalt eines Displays vorgesehen ist zum optischen Ausgeben von Informationen an den Benutzer des Kaskadeneinsatzes.Alternatively or in addition to the aforementioned aspect, according to embodiments of the cascade insert according to the invention, an interface for manually entering control commands to the electronic control unit is preferably provided in an end face of the end region of the housing in which the electronic control unit is accommodated. Furthermore or as an alternative to this, it is advantageous if a display device, in particular in the form of at least one LED and/or in the form of a display, is also preferably provided in the end face of the end region of the housing in which the control electronics are accommodated, for the optical output of Information to the user of the cascade insert.

Gemäß Ausführungsformen des erfindungsgemäßen Kaskadeneinsatzes ist vorgesehen, dass die mindestens eine Kaskadenschaltung ferner mindestens einen ebenfalls von dem Vergussmaterial eingegossenen Oszillator aufweist. Alternativ hierzu ist es aber auch denkbar, wenn der Ansteuerelektronik (und nicht der Kaskadenschaltung) ein entsprechender Oszillator zugeordnet ist. Grundsätzlich ist dabei vorgesehen, dass es sich bei dem mindestens einen Oszillator um einen digitalen Oszillator handelt, welcher keine Verlustleistung aufweist.According to embodiments of the cascade insert according to the invention, it is provided that the at least one cascade circuit also has at least one oscillator which is likewise encapsulated by the encapsulation material. As an alternative to this, however, it is also conceivable for the control electronics (and not the cascade circuit) to be assigned a corresponding oscillator. In principle, it is provided that the at least one oscillator is a digital oscillator which has no power loss.

Der modulhafte Aufbau des Kaskadeneinsatzes ermöglicht es, dass die einzelnen in dem Gehäuse aufgenommenen Kaskadenschaltungen individuell und bedarfsweise zu- oder abschaltbar sind, um auf diese Weise einen Betriebsmodus des Kaskadeneinsatzes (und im übertragenen Sinne des Ionisationstabes, welcher mit dem Kaskadeneinsatz ausgerüstet ist) zu variieren.The modular design of the cascade insert enables the individual cascade circuits accommodated in the housing to be switched on or off individually and as required, in order in this way to vary an operating mode of the cascade insert (and in the figurative sense of the ionizing bar, which is equipped with the cascade insert). .

Gemäß weiteren Ausführungsformen der vorliegenden Erfindung ist vorgesehen, dass die Vielzahl von Elektrodenspitzen der einzelnen im Gehäuse aufgenommenen Kaskadenschaltungen miteinander insbesondere kapazitiv, induktiv, resistiv oder galvanisch gekoppelt oder bedarfsweise koppelbar sind. Auf diese Weise können bereichsweise Elektroden zu- oder abgeschaltet werden, was das Anwendungsgebiet des erfindungsgemäßen Kaskadeneinsatzes noch weiter vergrößert.According to further embodiments of the present invention, it is provided that the plurality of electrode tips of the individual cascade circuits accommodated in the housing are coupled to one another, in particular capacitively, inductively, resistively or galvanically, or can be coupled as required. In this way, electrodes can be switched on or off in certain areas, which further increases the field of application of the cascade insert according to the invention.

Grundsätzlich ermöglicht insbesondere der modulhafte oder modulare Aufbau des Kaskadeneinsatzes, dass die einzelnen in dem Gehäuse aufgenommenen Kaskadenschaltungen vorzugsweise individuell austauschbar in dem Gehäuse des Kaskadeneinsatzes aufgenommen und insbesondere miteinander über Steckverbindungen galvanisch verbunden sind.In principle, the modular design of the cascade insert in particular allows the individual cascade circuits accommodated in the housing to be accommodated in the housing of the cascade insert in a preferably individually exchangeable manner and, in particular, to be galvanically connected to one another via plug-in connections.

Die Erfindung betrifft ferner einen Ionisationsstab zum berührungsfreien Neutralisieren elektrostatischer Aufladungen insbesondere von Isoliermaterialien, wobei der Ionisationsstab ein Außengehäuse in Gestalt eines offenen Profils und mindestens einen Kaskadeneinsatz der zuvor genannten Art aufweist. Das offene Profil des Außengehäuses des Ionisationsstabs weist dabei eine an die Außengeometrie des Gehäuses des Kaskadeneinsatzes angepasste Geometrie auf, und zwar derart, dass der mindestens eine Kaskadeneinsatz zumindest bereichsweise austauschbar in dem Außengehäuse des Ionisationsstabs aufnehmbar ist.The invention also relates to an ionizing bar for contact-free neutralization of electrostatic charges, in particular of insulating materials, with the ionizing bar having an outer housing in the form of an open profile and at least one cascade insert of the aforementioned type. The open profile of the outer housing of the ionizing bar has a geometry adapted to the outer geometry of the housing of the cascade insert, in such a way that the at least one cascade insert can be accommodated in the outer housing of the ionizing bar so that it can be exchanged at least in some areas.

Gemäß Ausführungsformen des Ionisationsstabes weist das Außengehäuse eine mit dem Träger des mindestens einen Kaskadeneinsatzes in Längsrichtung des Außengehäuses fluchtende Trägerverlängerung auf, in welcher eine Vielzahl von Elektrodenspitzen aufgenommen ist, die mit den von dem Träger des mindestens einen Kaskadeneinsatzes aufgenommenen Elektrodenspitzen vorzugsweise galvanisch gekoppelt sind.According to embodiments of the ionizing bar, the outer housing has a carrier extension which is aligned with the carrier of the at least one cascade insert in the longitudinal direction of the outer housing and in which a multiplicity of electrode tips are accommodated, which are preferably galvanically coupled to the electrode tips accommodated by the carrier of the at least one cascade insert.

Nachfolgend wird unter Bezugnahme auf die beiliegenden Zeichnungen eine exemplarische Ausführungsform des erfindungsgemäßen Ionisationsstabs zum berührungsfreien Neutralisieren elektrostatischer Aufladungen näher beschrieben.An exemplary embodiment of the ionizing bar according to the invention for the non-contact neutralization of electrostatic charges is described in more detail below with reference to the accompanying drawings.

Es zeigen:

FIG. 1
schematisch und in einer isometrischen, teilgeschnittenen Explosionsdarstellung eine exemplarische Ausführungsform des erfindungsgemäβen Ionisationsstabs; und
FIG. 2
schematisch und in einer isometrischen Teilschnittansicht eine exemplarische Ausführungsform des bei dem erfindungsgemäßen Ionisationsstab gemäß beispielsweise FIG. 1 zum Einsatz kommenden Kaskadeneinsatzes.
Show it:
FIG. 1
schematically and in an isometric, partially sectioned exploded view, an exemplary embodiment of the ionizing bar according to the invention; and
FIG. 2
Schematically and in an isometric partial sectional view, an exemplary embodiment of the ionizing bar according to the invention, for example FIG. 1 cascade insert to be used.

Die exemplarische Ausführungsform des erfindungsgemäßen Ionisationsstabes 20 eignet sich insbesondere zum berührungsfreien Neutralisieren elektrostatischer Aufladungen und/oder zum gezielten Aufladen (wahlweise positiv oder negativ), insbesondere von Isoliermaterialien. Der Ionisationsstab 20 weist ein Außengehäuse 21 beispielsweise in Gestalt eines teilweise offenen Profils auf. In dem Au-βengehäuse 21 ist zumindest bereichsweise ein Kaskadeneinsatz 1 vorzugsweise austauschbar aufgenommen.The exemplary embodiment of the ionizing bar 20 according to the invention is suitable in particular for contact-free neutralization of electrostatic charges and/or for targeted charging (either positively or negatively), in particular of insulating materials. The ionizing bar 20 has an outer housing 21, for example in the form of a partially open profile. In the outer housing 21, a cascade insert 1 is accommodated, preferably interchangeably, at least in certain areas.

Hierbei ist insbesondere vorgesehen, dass das Außengehäuse 21 mit dem in dem Außengehäuse 21 zumindest bereichsweise aufgenommenen Kaskadeneinsatz 1 quer zur Bewegungsrichtung eines zu behandelnden Substrats (nicht in den Zeichnungen dargestellt) montierbar ist.It is provided in particular that the outer housing 21 with the cascade insert 1 accommodated at least in certain areas in the outer housing 21 can be mounted transversely to the direction of movement of a substrate to be treated (not shown in the drawings).

Der erfindungsgemäße Ionisationsstab 20 eignet sich insbesondere als Antistatikvorrichtung zum Reduzieren von elektrostatischen Ladungen auf bewegten Materialbahnen. Er zeichnet sich insbesondere durch seine vereinfachte Handhabung, durch eine verbesserte Bedienbarkeit sowie durch eine reduzierte Dimensionierung auf. Zu diesem Zweck sind alle für den Betrieb notwendige Komponenten des Ionisationsstabes 20 in dem Kaskadeneinsatz 1 integriert, welcher vorzugsweise austauschbar in dem Außengehäuse 21 des Ionisationsstabes 20 aufgenommen bzw. aufnehmbar ist.The ionizing bar 20 according to the invention is particularly suitable as an antistatic device for reducing electrostatic charges on moving webs of material. It is characterized in particular by its simplified handling, improved usability and reduced dimensions. For this purpose, all components of the ionizing bar 20 necessary for operation are integrated in the cascade insert 1, which is preferably accommodated or can be accommodated in an exchangeable manner in the outer housing 21 of the ionizing bar 20.

Bei dem Kaskadeneinsatz 1 handelt es sich insbesondere um einen modular aufgebauten Einsatz, welcher flexibel bei einem Ionisationsstab 20 eingesetzt und/oder ausgetauscht werden kann. Bei der in FIG. 1 gezeigten Ausführungsform ist vorgesehen, dass in dem Gehäuse 2 des Kaskadeneinsatzes 1 zwei in Längsrichtung des Gehäuses 2 gesehen hintereinander angeordnete und jeweils in Vergussmaterial 4 eingegossene Kaskadenschaltungen 3 vorgesehen sind.The cascade insert 1 is in particular a modular insert which can be flexibly used and/or exchanged in an ionizing bar 20 . At the in FIG. 1 In the embodiment shown, it is provided that in the housing 2 of the cascade insert 1 two cascade circuits 3 are provided, which are arranged one behind the other as seen in the longitudinal direction of the housing 2 and are each cast in potting material 4 .

Ferner ist vorgesehen, dass in dem Gehäuse 2 des Kaskadeneinsatzes 1 eine Ansteuerelektronik 6, vorzugsweise in Gestalt eines modulhaft aufgebauten Blockes, aufgenommen ist, um die mindestens eine Kaskadenschaltung 3 des Kaskadeneinsatzes 1 geeignet anzusteuern. Hierbei bietet es sich an, die Ansteuerelektronik 6 vorzugsweise in einen Endbereich des Gehäuses 2 des Kaskadeneinsatzes 1 und benachbart zu einer der mindestens einen Kaskadenschaltung 3 vorzusehen. Denkbar in diesem Zusammenhang ist es dann, dass sich der Träger 5 des Kaskadeneinsatzes 1, von welchem die Vielzahl von Elektrodenspitzen der Kaskadenschaltung 3 aufgenommen ist, in Längsrichtung des Gehäuses 2 zumindest bereichsweise über den Endbereich des Gehäuses 2 erstreckt, in welchem die Ansteuerelektronik 6 aufgenommen ist.Furthermore, it is provided that in the housing 2 of the cascade insert 1 an electronic control unit 6, preferably in the form of a modular block, is accommodated in order to suitably control the at least one cascade circuit 3 of the cascade insert 1. It makes sense here to provide the control electronics 6 preferably in an end region of the housing 2 of the cascade insert 1 and adjacent to one of the at least one cascade circuit 3 . In this context, it is conceivable that the carrier 5 of the cascade insert 1, on which the plurality of electrode tips of the cascade circuit 3 are accommodated, extends in the longitudinal direction of the housing 2 at least in some areas over the end area of the housing 2 in which the control electronics 6 are accommodated is.

Des Weiteren ist vorgesehen, dass vorzugsweise in einer endseitigen Stirnfläche eines Endbereiches des Gehäuses 2, in welchem die Ansteuerelektronik 6 aufgenommen ist, mindestens ein elektrischer Anschluss 7 zur Energieversorgung der mindestens einen Kaskadenschaltung 3 und mindestens eine Datenschnittstelle 8 zur Datenkommunikation mit der Ansteuerelektronik 6 vorgesehen sind. Die mindestens eine Datenschnittstelle 8 und die Ansteuerelektronik 6 sind dabei vorzugsweise für eine bidirektionale Kommunikation, insbesondere über einen CAN-Bus, ausgebildet.Provision is also made for at least one electrical connection 7 for supplying energy to the at least one cascade circuit 3 and at least one data interface 8 for data communication with the electronic control unit 6 to be provided, preferably in an end face of an end region of the housing 2 in which the electronic control unit 6 is accommodated . The at least one data interface 8 and the control electronics 6 are preferably designed for bidirectional communication, in particular via a CAN bus.

Zusätzlich hierzu weist der Kaskadeneinsatz 1 in einer endseitigen Stirnfläche des Endbereichs des Gehäuses 2, in welchem die Ansteuerelektronik 6 aufgenommen ist, eine Schnittstelle zum manuellen Eingeben von Steuerbefehlen an die Ansteuerelektronik 6 auf. Ferner oder alternativ hierzu ist es von Vorteil, wenn ebenfalls vorzugsweise in der endseitigen Stirnfläche des Endbereichs des Gehäuses 2, in welchem die Ansteuerelektronik 6 aufgenommen ist, eine Anzeigeeinrichtung, insbesondere in Gestalt mindestens einer LED und/oder in Gestalt eines Displays vorgesehen ist zum optischen Ausgeben von Informationen an den Benutzer des Kaskadeneinsatzes 1.In addition to this, the cascade insert 1 has an interface for manually entering control commands to the electronic control unit 6 in an end face of the end region of the housing 2 in which the electronic control unit 6 is accommodated. Furthermore or as an alternative to this, it is advantageous if a display device, in particular in the form of at least one LED and/or in the form of a display, is also preferably provided in the end face of the end region of the housing 2, in which the control electronics 6 is accommodated, for optical purposes Outputting information to the user of the cascade insert 1.

In FIG. 2 ist in einer Explosionsansicht eine Ausführungsform des erfindungsgemäßen Ionisationsstabes 20 zum berührungsfreien Neutralisieren elektrostatischer Aufladungen gezeigt. Der Ionisationsstab 20 weist ein Außengehäuse 21 in Gestalt eines offenen Profils und mindestens einen Kaskadeneinsatz 1 der zuvor genannten Art auf. Das offene Profil des Außengehäuses 21 des Ionisationsstabes 20 weist dabei eine an die Außengeometrie des Gehäuses 2 des Kaskadeneinsatzes 1 angepasste Geometrie auf, und zwar derart, dass der mindestens eine Kaskadeneinsatz 1 zumindest bereichsweise austauschbar in dem Außengehäuse 21 des Ionisationsstabes 20 aufnehmbar ist.In FIG. 2 an embodiment of the ionizing bar 20 according to the invention for the non-contact neutralization of electrostatic charges is shown in an exploded view. The ionizing bar 20 has an outer housing 21 in the form of an open profile and at least one cascade insert 1 of the aforementioned type. The open profile of the outer housing 21 of the ionizing bar 20 has a geometry adapted to the outer geometry of the housing 2 of the cascade insert 1, in such a way that the at least one cascade insert 1 can be accommodated in the outer housing 21 of the ionizing bar 20 in an exchangeable manner at least in certain areas.

Ferner weist das Außengehäuse 21 eine mit dem Träger 5 des mindestens einen Kaskadeneinsatzes 1 in Längsrichtung des Außengehäuses 21 fluchtende Trägerverlängerung 22 auf, in welcher eine Vielzahl von Elektrodenspitzen aufgenommen ist, die mit den von dem Träger 5 des mindestens einen Kaskadeneinsatzes 1 aufgenommenen Elektrodenspitzen vorzugsweise galvanisch gekoppelt sind.Furthermore, the outer housing 21 has a carrier extension 22 which is aligned with the carrier 5 of the at least one cascade insert 1 in the longitudinal direction of the outer housing 21 and in which a multiplicity of electrode tips are accommodated, which are preferably galvanically connected to the electrode tips accommodated by the carrier 5 of the at least one cascade insert 1 are coupled.

Der Ionisationsstab 20 kann mindestens eine aktive Elektrodenanordnung aufweisen, die eine Vielzahl vorzugsweise nabelförmige Einzel-Elektroden aufweist, und die im Betrieb des Ionisationsstabes 20 elektrisch an eine zugehörige Spannungsquelle angeschlossen ist. Die Spannungsquelle ist hierbei zweckmäßig als Hochspannungsquelle ausgestaltet, um eine entsprechende Hochspannung an der Elektrodenanordnung anzulegen. Dabei handelt es sich üblicherweise um Spannungen von etwa 1.000 V und höhere.The ionizing bar 20 can have at least one active electrode arrangement, which has a large number of preferably navel-shaped individual electrodes, and which is electrically connected to an associated voltage source during operation of the ionizing bar 20. In this case, the voltage source is expediently designed as a high-voltage source in order to apply a corresponding high voltage to the electrode arrangement. These are usually voltages of about 1,000 V and higher.

Nachfolgend wird die Spannungsquelle deshalb auch als "Hochspannungsquelle" bezeichnet, wobei klar sein sollte, dass die Spannungsquelle auch niedrigere Spannungen zur Verfügung stellen kann.The voltage source is therefore also referred to below as a “high-voltage source”, although it should be clear that the voltage source can also provide lower voltages.

Ferner umfasst der erfindungsgemäße Ionisationsstab 20 eine Steuereinrichtung, welche die mit der Elektrodenanordnung verbundene Hochspannungsquelle steuert. Vorzugsweise ist die Steuereinrichtung in dem Kaskadeneinsatz 1 des Ionisationsstabes 20 untergebracht.Furthermore, the ionizing bar 20 according to the invention comprises a control device which controls the high-voltage source connected to the electrode arrangement. The control device is preferably housed in the cascade insert 1 of the ionizing bar 20 .

Bevorzugt ist auch die Hochspannungsquelle in dem Kaskadeneinsatz 1 des Ionisationsstabes 20 angeordnet. Dies ermöglicht eine zusätzliche Verbesserung der Handhabung des Ionisationstabs, insbesondere weil ein gesonderter Anschluss 7 des Ionisationstabs bzw. des Kaskadeneinsatzes 1 an eine Hochspannungsquelle außerhalb des Ionisationsstabes 20 entfallen kann.The high-voltage source is preferably also arranged in the cascade insert 1 of the ionizing bar 20 . This enables an additional improvement in the handling of the ionizing bar, in particular because a separate connection 7 of the ionizing bar or of the cascade insert 1 to a high-voltage source outside of the ionizing bar 20 can be omitted.

Die Elektrodenanordnung des Ionisationsstabes 20, und insbesondere die Einzel-Elektroden dienen dem Zweck, relativ zu einer sich bewegenden Materialbahn ein elektrisches Potential aufzubauen, um eine gegebenenfalls existierende elektrostatische Ladung der Materialbahn zu reduzieren. Hierzu kann der jeweiligen Einzel-Elektrode ein elektrischer Widerstand vorgeschaltet sein. Zweckmäßig ist die Steuereinrichtung derart ausgestaltet bzw. programmiert, dass sie durch das Steuern der Hochspannungsquelle ein solches elektrisches Potential aufbaut, welches zum Reduzieren der elektrostatischen Ladungen auf der Materialbahn führt. Insbesondere kann vorgesehen sein, dass an den Einzel-Elektroden eine negative Hochspannung angelegt wird, wenn die elektrostatischen Ladungen auf der Materialbahn positiv sind und die Materialbahn somit positiv aufgeladen ist. Dementsprechend kann auch vorgesehen sein, die Elektroden der Elektrodenanordnung mit einer positiven Spannung zu beaufschlagen, wenn die elektrostatischen Ladungen auf der Materialbahn negativ sind und die Materialbahn somit negativ aufgeladen ist. In beiden Fällen findet bevorzugt ein Abtransport der elektrostatischen Ladungen von der Materialbahn statt, wodurch die elektrostatischen Ladungen auf der Materialbahn reduziert und möglichst neutralisiert werden.The electrode arrangement of the ionization bar 20, and in particular the individual electrodes, serve the purpose of building up an electrical potential relative to a moving web of material in order to reduce any electrostatic charge that may exist on the web of material. For this purpose, an electrical resistance can be connected upstream of the respective individual electrode. The control device is expediently designed or programmed in such a way that, by controlling the high-voltage source, it builds up such an electrical potential that leads to a reduction in the electrostatic charges on the material web. In particular, it can be provided that a negative high voltage is applied to the individual electrodes when the electrostatic charges on the material web are positive and the material web is therefore positively charged. Accordingly, provision can also be made to apply a positive voltage to the electrodes of the electrode arrangement if the electrostatic charges on the material web are negative and the material web is therefore negative is charged. In both cases, the electrostatic charges are preferably transported away from the material web, as a result of which the electrostatic charges on the material web are reduced and, if possible, neutralized.

Gemäß einer (nicht in der Zeichnung dargestellten) Ausführungsform weist der Ionisationsstab 20 zwei aktive Elektrodenanordnungen auf, nämlich eine aktive Positivelektrodenanordnung mit mehreren aktiven nadelförmigen Einzel-Positivelektroden und eine aktive Negativelektrodenanordnung mit mehreren aktiven nadelförmigen Einzel-Negativelektroden. Hierbei kann die positive Elektrodenanordnung an eine solche Hochspannungsquelle angeschlossen sein, die positiv geladen ist und dementsprechend als positive Hochspannungsquelle bezeichnet wird, während die negative Elektrodenanordnung an eine negative Hochspannungsquelle angeschlossen sein kann, die als negative Hochspannungsquelle bezeichnet werden kann. In zweckmäßiger Weise sind die Positivelektrodenanordnung und die Negativelektrodenanordnung gemeinsam im Außengehäuse 21 des Ionisationsstabes 20 angeordnet.According to one embodiment (not shown in the drawing), the ionizing bar 20 has two active electrode arrangements, namely an active positive electrode arrangement with a plurality of active needle-shaped individual positive electrodes and an active negative electrode arrangement with a plurality of active needle-shaped individual negative electrodes. Here, the positive electrode arrangement can be connected to such a high voltage source which is positively charged and accordingly referred to as a positive high voltage source, while the negative electrode arrangement can be connected to a negative high voltage source which can be referred to as a negative high voltage source. The positive electrode arrangement and the negative electrode arrangement are expediently arranged together in the outer housing 21 of the ionizing bar 20 .

Hierbei können die jeweiligen Positivelektroden und Negativelektroden entlang paralleler Linien längs des Ionisationsstabes 20 bzw. einer Stirnseite des Ionisationsstabes 20 verlaufen. Auch sind Ausführungsformen vorstellbar, bei denen die Positivelektroden und die Negativelektroden abwechselnd entlang einer gemeinsamen Linie angeordnet sind. Eine derartige Ausgestaltung des Ionisationsstabes 20 führt zu einer weiteren Reduzierung des Platzbedarfs des Ionisationsstabes 20, weil keine unterschiedliche und voneinander beabstandete Gehäuse 2 benötigt sind, in denen jeweils die Positivelektrodenanordnung oder die Negativelektrodenanordnung angeordnet ist.In this case, the respective positive electrodes and negative electrodes can run along parallel lines along the ionizing bar 20 or an end face of the ionizing bar 20 . Embodiments are also conceivable in which the positive electrodes and the negative electrodes are arranged alternately along a common line. Such a configuration of the ionizing bar 20 leads to a further reduction in the space required for the ionizing bar 20, because no different and spaced-apart housings 2 are required, in which the positive electrode arrangement or the negative electrode arrangement is arranged.

Gemäß der in den Zeichnungen dargestellten Ausführungsform weist der Ionisationsstab 20 eine Leistungselektronik auf, welche ebenfalls in dem Kaskadeneinsatz 1 integriert ist. Die Leistungselektronik dient insbesondere dem Zweck, eine dem Ionisationsstab 20 zur Verfügung stehende elektrische Primärversorgung entsprechend den zum Betrieb des Ionisationsstabes 20 benötigten Anforderungen umzuwandeln. Dabei handelt es sich bei der elektrischen Primärversorgung üblicherweise um eine allgemein verfügbare elektrische Versorgung, insbesondere in Form von aus einer gewöhnlichen Steckdose eines elektrischen Netzbetreibers abziehbaren elektrischen Strom bzw. einer elektrischen Spannung. Hierbei steht beispielsweise ein Niederspannungsnetz zur Verfügung, bei dem etwa eine Spannung mit einem Wert von 24 VDC oder 90-400 VAC mit Frequenzen zwischen 50 und 60 Hz zur Verfügung gestellt werden, welche durch die Leistungselektronik in die besagten, für den Betrieb des Ionisationsstabes 20, insbesondere der jeweiligen aktiven Elektrodenanordnung, benötigten Spannungen, Ströme und Frequenzen umgewandelt werden.According to the embodiment shown in the drawings, the ionizing bar 20 has power electronics which are also integrated in the cascade insert 1 . The power electronics serve the purpose in particular of converting an electrical primary supply available to the ionizing bar 20 in accordance with the requirements required for the operation of the ionizing bar 20 . The primary electrical supply is usually a generally available electrical supply, in particular in the form of electrical current or an electrical voltage that can be drawn from a conventional socket of an electrical network operator. Here, for example, a low-voltage network is available, in which about a voltage with a value of 24 VDC or 90-400 VAC with frequencies between 50 and 60 Hz, which are converted by the power electronics into the voltages, currents and frequencies required for the operation of the ionizing bar 20, in particular the respective active electrode arrangement being transformed.

Die Leistungselektronik weist zumindest einen Spannungswandler auf, welcher ein durch die elektrische Primärversorgung gegebene Primärspannung in eine Sekundärspannung umwandelt. Dabei wandelt der Spannungswandler die beispielsweise als Niedrigspannung zur Verfügung stehende Primärspannung in eine Mittelspannung und/oder eine Hochspannung um und stellt diese beispielsweise der Elektrodenanordnung zur Verfügung. Dementsprechend ist eine solche Hochspannungsquelle mit der Leistungselektronik verbunden oder kann insbesondere die Leistungselektronik oder ein Teil davon sein. Ferner kann die Leistungselektronik für die jeweilige Elektrodenanordnung bzw. die jeweilige Hochspannungsquelle zumindest einen solchen Spannungswandler aufweisen. D. h., dass die Leistungselektronik zumindest einen solchen Spannungswandler für die Positivelektrodenanordnung bzw. für die positive Hochspannungsquelle und zumindest einen solchen anderen Spannungswandler für die Elektrodenanordnung bzw. die negative Hochspannungsquelle aufweisen kann.The power electronics have at least one voltage converter, which converts a primary voltage given by the electrical primary supply into a secondary voltage. In this case, the voltage converter converts the primary voltage, which is available as a low voltage, for example, into a medium voltage and/or a high voltage and makes this available, for example, to the electrode arrangement. Accordingly, such a high-voltage source is connected to the power electronics or, in particular, can be the power electronics or a part thereof. Furthermore, the power electronics for the respective electrode arrangement or the respective high-voltage source can have at least one such voltage converter. This means that the power electronics can have at least one such voltage converter for the positive electrode arrangement or for the positive high-voltage source and at least one such other voltage converter for the electrode arrangement or the negative high-voltage source.

Auch kann die Leistungselektronik zumindest einen Frequenzwandler aufweisen, der eine durch die elektrische Primärversorgung zur Verfügung gestellte Primärfrequenz der Primärspannung umwandelt. Insbesondere kann ein solcher Frequenzwandler die Primärfrequenz der Primärspannung reduzieren und/oder erhöhen. Somit kann eine Primärwechselspannung in eine Gleichspannung und/oder eine Spannung mit einer von der Primärfrequenz der Primärspannung unterschiedlichen Frequenz umgewandelt werden. Analog zum Spannungswandler kann hierbei der jeweiligen Elektrodenanordnung ein solcher separater Frequenzwandler der Leistungselektronik vorgesehen sein.The power electronics can also have at least one frequency converter, which converts a primary frequency of the primary voltage made available by the electrical primary supply. In particular, such a frequency converter can reduce and/or increase the primary frequency of the primary voltage. A primary AC voltage can thus be converted into a DC voltage and/or a voltage with a frequency that differs from the primary frequency of the primary voltage. Similar to the voltage converter, such a separate frequency converter of the power electronics can be provided for the respective electrode arrangement.

Die Leistungselektronik ist mit der Steuereinrichtung verbunden, um den Ionisationsstab 20, insbesondere die zumindest eine aktive Elektrodenanordnung, entsprechend der jeweiligen Anforderungen elektrisch zu versorgen. Dabei kann die Steuereinrichtung derart ausgestaltet bzw. programmiert sein, dass sie die Leistungselektronik und insbesondere die jeweilige Hochspannungsquelle derart ansteuert, dass eine solche zum Reduzieren der elektrostatischen Ladung der Materialbahn benötigte Spannung an die zumindest eine Elektrodenanordnung, insbesondere an die zugehörigen Elektroden, angelegt wird.The power electronics are connected to the control device in order to supply the ionizing bar 20, in particular the at least one active electrode arrangement, with electricity according to the respective requirements. The control device can be designed or programmed in such a way that it controls the power electronics and in particular the respective high-voltage source in such a way that that such a voltage required to reduce the electrostatic charge of the material web is applied to the at least one electrode arrangement, in particular to the associated electrodes.

Entsprechend einer Ausführungsform weist der Ionisationsstab 20 eine Sensorik auf, die der Erfassung von Parametern des Ionisationsstabes 20 und/oder der Materialbahn dient. Auch könnten mit Hilfe der Sensorik Parameter einer zugehörigen Produktionsanlage erfasst werden.According to one embodiment, the ionizing bar 20 has a sensor system that is used to detect parameters of the ionizing bar 20 and/or the web of material. Parameters of an associated production facility could also be recorded with the aid of the sensors.

Die Sensorik ist zweckmäßig mit der Steuereinrichtung verbunden und in dem Kaskadeneinsatz 1 des Ionisationstabs integriert, sodass die durch die Sensorik erfassten Parameter an die Steuereinrichtung weitergegeben werden, um von der Steuereinrichtung weiterverarbeitet zu werden. Insbesondere kann die Steuereinrichtung derart ausgestaltet bzw. programmiert sein, dass sie die Leistungselektronik und/oder die Hochspannungsquelle anhand der mit Hilfe der Sensorik erfassten Parameter steuert. Bei den von der Sensorik erfassten Parametern kann es sich beispielsweise um einen Betriebszustand des Ionisationsstabes 20 und/oder der Materialbahn und/oder der Produktionsanlage handeln.The sensor system is expediently connected to the control device and integrated in the cascade insert 1 of the ionizing bar, so that the parameters recorded by the sensor system are passed on to the control device in order to be processed further by the control device. In particular, the control device can be designed or programmed in such a way that it controls the power electronics and/or the high-voltage source using the parameters detected with the aid of the sensors. The parameters recorded by the sensors can be, for example, an operating state of the ionizing bar 20 and/or the material web and/or the production plant.

Die Sensorik kann dementsprechend beispielsweise erfassen, mit welcher Geschwindigkeit sich die Materialbahn bewegt und insbesondere ob die Materialbahn bewegungslos steht. Zudem kann die Sensorik derart ausgebildet bzw. ausgestaltet sein, dass sie eine Polarität der Materialbahn erfassen kann. Alternativ oder zusätzlich hierzu kann die Sensorik derart ausgebildet bzw. ausgestaltet sein, dass sie einen Neutralisationsstrom erfassen kann, der bedingt durch das Reduzieren der elektrostatischen Ladungen auf der Materialbahn an der zumindest einen aktiven Elektrodenanordnung fließt.Accordingly, the sensor system can, for example, detect the speed at which the material web is moving and, in particular, whether the material web is motionless. In addition, the sensor system can be constructed or designed in such a way that it can detect a polarity of the material web. As an alternative or in addition to this, the sensor system can be constructed or configured in such a way that it can detect a neutralization current that flows at the at least one active electrode arrangement due to the reduction in the electrostatic charges on the material web.

In vorteilhafter Weise kann die Sensorik auch die von der Leistungselektronik der jeweiligen Elektrodenanordnung und/oder anderen Komponenten des Ionisationsstabes 20 bzw. des Kaskadeneinsatzes 1 zur Verfügung gestellten Spannungen und/oder Ströme erfassen. Hierzu kann die Sensorik insbesondere mit der Leistungselektronik und/oder der jeweiligen Hochspannungsquelle und/oder der jeweiligen Elektrodenanordnung verbunden sein.The sensors can advantageously also detect the voltages and/or currents made available by the power electronics of the respective electrode arrangement and/or other components of the ionizing bar 20 or the cascade insert 1 . For this purpose, the sensor system can be connected in particular to the power electronics and/or the respective high-voltage source and/or the respective electrode arrangement.

Die Sensorik kann insbesondere eine Sensorelektrodenanordnung aufweisen, die mehrere nadelförmige Einzel-Sensorelektroden umfasst und die im Betrieb des Ionisationsstabes 20 elektrisch an eine Massung angeschlossen, insbesondere geerdet, ist. Durch die Sensorelektrodenanordnung lassen sich hierbei der genannte Neutralisationsstrom und/oder die Polarität der Materialbahn erfassen.The sensor system can in particular have a sensor electrode arrangement which comprises a plurality of needle-shaped individual sensor electrodes and which is electrically connected to ground, in particular grounded, when the ionizing bar 20 is in operation. The neutralization current mentioned and/or the polarity of the material web can be detected by the sensor electrode arrangement.

Zur Verbesserung der Bedienbarkeit des Ionisationsstabes 20 und/oder zur Verbesserung der Sicherheit weist der Ionisationsstab 20 vorzugsweise eine an einer Seiten-Stirnfläche des Außengehäuses 21 angeordnete Signalvorrichtung auf. Die Signalvorrichtung kann dabei derart ausgebildet bzw. ausgestaltet sein, dass sie abhängig von zumindest einem Parameter des Ionisationsstabes 20 und/oder der Materialbahn und/oder der Produktionsanlage ein Signal ausgibt, wobei der Parameter insbesondere von der Sensorik erfasst sein kann.To improve the operability of the ionizing bar 20 and/or to improve safety, the ionizing bar 20 preferably has a signaling device arranged on a side face of the outer housing 21 . The signaling device can be designed or designed in such a way that it emits a signal depending on at least one parameter of the ionizing bar 20 and/or the material web and/or the production plant, with the parameter being able to be detected in particular by the sensors.

Die Signalvorrichtung weist bei bevorzugten Ausführungsformen eine optische Anzeigeeinrichtung auf. Auf diese Weise kann die Wiedergabe eines Signals optisch und folglich mittels eines optischen Signals und/oder optischer Signale erfolgen.In preferred embodiments, the signaling device has an optical display device. In this way, a signal can be reproduced optically and consequently by means of an optical signal and/or optical signals.

Das Gehäuse 2 des Kaskadeneinsatzes 1 ist vorzugsweise mit einer Vergussmasse ausgefüllt, in die vorzugsweise die Kaskadenschaltung 3 angeordnet ist.The housing 2 of the cascade insert 1 is preferably filled with a casting compound, in which the cascade circuit 3 is preferably arranged.

Als optische Anzeigeeinrichtung kommt insbesondere eine Anzeigeeinrichtung in Frage, welche zumindest zwei unterschiedliche optische Signale ausgeben kann. Die optische Anzeigeeinrichtung kann also beispielsweise zwei unterschiedliche Farben anzeigen und ist beispielsweise als eine RGB-Anzeige ausgestaltet. Ferner kann die optische Anzeigeeinrichtung zumindest eine Licht emittierende Diode (LED) und/oder eine Pixelmatrix, die beispielsweise in Form eines Aktivmatrixdisplays aus LEDs oder als Flüssigkristalldisplay (LCD) ausgestaltet ist, aufweisen. Es versteht sich, dass die optische Anzeigeeinrichtung die optischen Signale durch beliebige Leuchteinheiten ausgeben kann. Hierzu zählen beispielsweise LEDs und/oder LCDs sowie Glimmlampen, Leuchtröhren und dergleichen.A display device that can output at least two different optical signals is particularly suitable as the optical display device. The optical display device can therefore, for example, display two different colors and is designed, for example, as an RGB display. Furthermore, the optical display device can have at least one light-emitting diode (LED) and/or a pixel matrix, which is designed, for example, in the form of an active matrix display made of LEDs or as a liquid crystal display (LCD). It goes without saying that the optical display device can output the optical signals using any lighting units. These include, for example, LEDs and/or LCDs as well as glow lamps, fluorescent tubes and the like.

Zweckmäßig kann der Ionisationsstab 20 eine oder mehrere Kommunikationsschnittstellen aufweisen. Eine solche Kommunikationsschnittstelle dient dem Zweck der Kommunikation des Ionisationsstabes 20 mit einer anderen Kommunikationsvorrichtung. Bei der Kommunikationsvorrichtung kann es sich beispielsweise um einen Computer, einen Controller, ein Bedienfeld und dergleichen behandelt. Die Kommunikationsvorrichtung erlaubt insbesondere das Auslesen von Parametern des Ionisationsstabes 20 mittels der Kommunikationsschnittstelle. So kann beispielsweise auch mit der Steuereinrichtung kommuniziert werden, um insbesondere die Programmierung der Steuereinrichtung zu ändern, zu aktivieren, zu deaktivieren und dergleichen. Bei der jeweiligen Kommunikationsschnittstelle kann es sich also um einen am oder im Gehäuse 2 des Kaskadeneinsatzes 1 angeordneten Kommunikationsanschluss, beispielsweise einen USB-Anschluss 7 handeln.The ionizing bar 20 can expediently have one or more communication interfaces. Such a communication interface serves the purpose of communication of the ionizing bar 20 with another communication device. The communication device can be, for example treated around a computer, a controller, a control panel and the like. In particular, the communication device allows parameters of the ionizing bar 20 to be read out by means of the communication interface. For example, it is also possible to communicate with the control device, in particular in order to change, activate, deactivate and the like the programming of the control device. The respective communication interface can therefore be a communication connection arranged on or in the housing 2 of the cascade insert 1 , for example a USB connection 7 .

Die Kommunikationsschnittstelle kann insbesondere als eine kabellose Kommunikationsschnittstelle ausgestaltet sein, welche die kabellose Kommunikation, also insbesondere das kabellose Senden und/oder Empfangen von Signalen und/oder Kommunikationsdaten bzw. Daten, ermöglicht. Eine solche Kommunikationsstelle kann also insbesondere als wireless-lan (WLAN) Schnittstelle ausgestaltet sein und mit einer beliebigen Einrichtung kommunizieren. Durch die kabellose Kommunikationsschnittstelle kann also ein entsprechender Anschluss 7 über ein Kabel und dergleichen entfallen.The communication interface can in particular be designed as a wireless communication interface which enables wireless communication, ie in particular the wireless sending and/or receiving of signals and/or communication data or data. Such a communication point can therefore be designed in particular as a wireless LAN (WLAN) interface and can communicate with any device. Due to the wireless communication interface, a corresponding connection 7 via a cable and the like can therefore be omitted.

Die Erfindung ist nicht auf das in den Zeichnungen gezeigte Ausführungsbeispiel beschränkt, sondern ergibt sich aus einer Zusammenschau sämtlicher hierin offenbarter Merkmale.The invention is not limited to the exemplary embodiment shown in the drawings, but results from a synopsis of all the features disclosed herein.

Claims (12)

  1. A cascade insert (1) for an ionizing bar (20) for the non-contact neutralizing of electrostatic charges and/or the non-contact charging of particularly insulating materials, wherein the cascade insert (1) exhibits a housing (2) having at least one cascade circuit (3) comprising at least one transformer and one single or multi-stage cascade unit, wherein said cascade units are potted with potting material (4), and wherein the output of the cascade circuit (3) is capacitively, inductively or resistively coupled to a plurality of electrode tips accommodated in a carrier (5) extending in the longitudinal direction of the housing (2), wherein a control electronics (6) is accommodated in the housing (2) for controlling the at least one cascade circuit (3), and wherein the control electronics (6) is provided in an end region of the housing (2) and adjacent to one of the at least one cascade circuits (3), characterized in that
    the carrier (5) accommodating the plurality of the electrode tips of the cascade circuit (3) extends in the longitudinal direction of the housing (2) over at least part of the end region of the housing (2) in which the control electronics (6) is accommodated.
  2. The cascade insert (1) according to claim 1,
    wherein a plurality of cascade circuits arranged one behind the other - as seen in the longitudinal direction of the housing (2) - and each potted in potting material (4) is provided in the housing (2).
  3. The cascade insert (1) according to claim 1 or 2,
    wherein at least one electrical connection (7) for supplying energy to the at least one cascade circuit (3) and at least one data interface for data communication with the control electronics (6) are provided preferably in an end face of an end region of the housing (2) in which the control electronics (6) is accommodated.
  4. The cascade insert (1) according to claim 3,
    wherein the at least one data interface (8) and the control electronics (6) are designed for bidirectional communication, particularly over a CAN bus.
  5. The cascade insert (1) according to one of claims 1 to 4,
    wherein an interface for manually inputting control commands to the control electronics (6) and/or a display device, particularly in the form of at least one LED and/or in the form of a display. is/are provided preferably in an end face of the end region of the housing (2) in which the control electronics (6) is accommodated for the optical output of information to the user of the cascade insert (1).
  6. The cascade insert (1) according to one of claims 1 to 5,
    wherein the at least one cascade circuit (3) further comprises at least one oscillator likewise potted with the potting material (4).
  7. The cascade insert (1) according to one of claims 1 to 6,
    wherein at least one oscillator is assigned to the at least one cascade circuit (3) and/or the control electronics (6).
  8. The cascade insert (1) according to one of claims 1 to 7,
    wherein a plurality of cascade circuits (3) arranged one behind the other as seen in the longitudinal direction of the housing (2) is accommodated in the housing (2), and wherein the individual cascade circuits (3) accommodated in the housing (2) can be switched on or off individually and as required in order to change an operating mode of the cascade insert (1).
  9. The cascade insert (1) according to one of claims 1 to 8,
    wherein a plurality of cascade circuits (3) arranged one behind the other as seen in the longitudinal direction of the housing (2) is accommodated in the housing (2), and wherein the plurality of electrode tips of the individual cascade circuits (3) accommodated in the housing (2) can be coupled to one another as required, in particular capacitively, inductively, resistively or galvanically.
  10. The cascade insert (1) according to one of claims 1 to 9,
    wherein a plurality of cascade circuits (3) arranged one behind the other as seen in the longitudinal direction of the housing (2) is accommodated in the housing (2), and wherein the individual cascade circuits (3) accommodated in the housing (2) are preferably accommodated in the housing (2) individually interchangeably and are in particular galvanically connected to one another via plug connections.
  11. An ionizing bar (20) for the non-contact neutralizing of electrostatic charges of in particular insulating materials, wherein the ionizing bar (20) exhibits an outer housing (21) in the form of an open profile and at least one cascade insert (1) according to one of claims 1 to 10, wherein the open profile of the outer housing has a geometry adapted to the exterior geometry of the housing (2) of the at least one cascade insert (1) such that the at least one cascade insert (1) can be at least partially accommodated, in particular interchangeably, in the outer housing (21) of the ionizing bar (20).
  12. The ionizing bar (20) according to claim 11,
    wherein the outer housing (21) comprises a carrier extension (22) aligned with the carrier (5) of the at least one cascade insert (1) in the longitudinal direction of the outer housing in which a plurality of electrode tips (9) is accommodated which are coupled, in particular capacitively, inductively, resistively or galvanically, to the electrode tips accommodated by the carrier (5) of the at least one cascade insert (1).
EP20707611.8A 2019-03-01 2020-02-27 Cascade insert for an ionising bar and ionising bar having a cascade insert Active EP3931923B1 (en)

Applications Claiming Priority (2)

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DE102019105231.9A DE102019105231B4 (en) 2019-03-01 2019-03-01 CASCADING INSERT FOR AN IONIZATION BAR AND IONIZATION BAR WITH A CASCADING INSERT
PCT/EP2020/055076 WO2020178109A1 (en) 2019-03-01 2020-02-27 Cascade insert for an ionising bar and ionising bar having a cascade insert

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EP3931923B1 true EP3931923B1 (en) 2023-01-25

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EP (1) EP3931923B1 (en)
DE (1) DE102019105231B4 (en)
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DE1923098A1 (en) 1969-05-06 1971-02-18 Windmoeller & Hoelscher Pre-treating plastics tubular films by - high-voltage spark discharge prior to printing or adhesive
JPH05289471A (en) * 1992-04-07 1993-11-05 Sharp Corp Electrostatic charge device
JP4903942B2 (en) * 2001-03-15 2012-03-28 株式会社キーエンス Ion generator
DE10116993C2 (en) * 2001-04-05 2003-04-10 Haug Gmbh & Co Kg Luftionisationsgerät
US7054130B2 (en) * 2004-06-03 2006-05-30 Illinois Tool Works Inc Apparatus and method for improving uniformity and charge decay time performance of an air ionizer blower
JP4759430B2 (en) 2006-04-13 2011-08-31 株式会社コガネイ Static eliminator and discharge module
JP4874771B2 (en) * 2006-11-30 2012-02-15 株式会社キーエンス Ionizer
DE102009033827B3 (en) * 2009-07-18 2011-03-17 Thomas Ludwig Unloading device for contactless dismantling of electrostatic loads on isolating materials, comprises electrode, which is attached on positive and negative high voltage source
JP5945928B2 (en) * 2012-03-30 2016-07-05 Smc株式会社 Charge generator
DE102012207219B4 (en) * 2012-04-30 2017-11-23 Gema Switzerland Gmbh Anti-static device and associated operating method
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DE102016101497B3 (en) * 2016-01-28 2017-05-24 Haug Gmbh & Co. Kg. Luftionisationsgerät
WO2019021102A1 (en) * 2017-07-27 2019-01-31 Naturion Pte. Ltd. Ion generator device

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US11646552B2 (en) 2023-05-09
DE102019105231A1 (en) 2020-09-03
US20220209510A1 (en) 2022-06-30
WO2020178109A1 (en) 2020-09-10
DE102019105231B4 (en) 2022-02-24
EP3931923A1 (en) 2022-01-05

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