EP3957137B1 - Ensemble de traitement pour le traitement d'une surface d'un corps au moyen d'un plasma à barrière diélectrique - Google Patents

Ensemble de traitement pour le traitement d'une surface d'un corps au moyen d'un plasma à barrière diélectrique Download PDF

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Publication number
EP3957137B1
EP3957137B1 EP20720761.4A EP20720761A EP3957137B1 EP 3957137 B1 EP3957137 B1 EP 3957137B1 EP 20720761 A EP20720761 A EP 20720761A EP 3957137 B1 EP3957137 B1 EP 3957137B1
Authority
EP
European Patent Office
Prior art keywords
dielectric
electrode
receiving opening
arrangement according
contacting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
EP20720761.4A
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German (de)
English (en)
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EP3957137A1 (fr
Inventor
Dirk Wandke
Mirko HAHNL
Karl-Otto Storck
Leonhard Trutwig
Melanie RICKE
Jan-Hendrik Hellmold
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Cinogy GmbH
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Cinogy GmbH
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Publication date
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Publication of EP3957137A1 publication Critical patent/EP3957137A1/fr
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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
    • H05H1/2418—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes the electrodes being embedded in the dielectric
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/22—Contacts for co-operating by abutting
    • H01R13/24—Contacts for co-operating by abutting resilient; resiliently-mounted
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H1/00—Generating plasma; Handling plasma
    • H05H1/24—Generating plasma
    • H05H1/2406—Generating plasma using dielectric barrier discharges, i.e. with a dielectric interposed between the electrodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/77—Coupling devices for flexible printed circuits, flat or ribbon cables or like structures
    • H01R12/771—Details
    • H01R12/774—Retainers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/82—Coupling devices connected with low or zero insertion force
    • H01R12/85—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures
    • H01R12/88—Coupling devices connected with low or zero insertion force contact pressure producing means, contacts activated after insertion of printed circuits or like structures acting manually by rotating or pivoting connector housing parts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/62933—Comprising exclusively pivoting lever
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H2242/00—Auxiliary systems
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H2245/00—Applications of plasma devices
    • H05H2245/30—Medical applications
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05H—PLASMA TECHNIQUE; PRODUCTION OF ACCELERATED ELECTRICALLY-CHARGED PARTICLES OR OF NEUTRONS; PRODUCTION OR ACCELERATION OF NEUTRAL MOLECULAR OR ATOMIC BEAMS
    • H05H2245/00—Applications of plasma devices
    • H05H2245/30—Medical applications
    • H05H2245/34—Skin treatments, e.g. disinfection or wound treatment

Definitions

  • the invention relates to a treatment arrangement for treating a surface of a body with a dielectric barrier plasma, having an electrode arrangement in which at least one electrode is arranged in a base section of the electrode arrangement, is completely shielded from the surface to be treated by a dielectric and is a connecting conductor extends into a contacting attachment of the dielectric, and with a contacting element which has a receiving opening for the contacting attachment and a lever arrangement for opening and closing the receiving opening and for pressing a contact pin through a prefabricated recess in the dielectric onto the electrode for supplying a connection of a changeover -Has high voltage source on the electrode.
  • a dielectrically impeded plasma discharge on a surface of a body can have a positive effect on the surface.
  • surfaces made of a wide variety of materials can be disinfected by means of a cold plasma discharge, as represented by a dielectric barrier plasma discharge, and/or to accommodate adhesives, paints or the like. to get prepared.
  • a dielectric barrier plasma discharge as represented by a dielectric barrier plasma discharge
  • the treatment of skin surfaces of living bodies with a dielectrically impeded plasma discharge as a result of which both disinfection and an increase in the microcirculation in the skin, and thus also improved wound healing, can be achieved.
  • an alternating high voltage is supplied to the electrode of the treatment arrangement. While initially the electrode arrangement was connected via a suitable high-voltage cable to a treatment device in which the alternating high voltage was generated, the idea has increasingly been pursued of designing such an electrode arrangement to be easily exchangeable, so that the used electrode arrangement can be quickly and easily removed, especially for the treatment of skin surfaces after a treatment could be replaced by a new, sterile packaged electrode assembly.
  • the dielectric of the electrode arrangement forms a contact attachment, into which the electrode extends with a connecting conductor.
  • the dielectric is provided with a recess through which a small surface of the connecting conductor is exposed as the bottom of the recess.
  • a contacting pin of the contacting element protrudes into the recess and contacts the exposed surface of the connecting conductor at the front, as a result of which the alternating high voltage is fed to the electrode via the contact pin.
  • the contacting element encloses the arrangement of contact pin and recess of the dielectric with an insulating housing whose receiving opening for the contacting element can be closed with the lever arrangement, so that protection against accidental contact with the high-voltage supply is ensured.
  • EP 3 320 759 B1 an electrode arrangement is known in which two electrodes are arranged next to one another in the base section. The two electrodes are completely embedded in the dielectric and are therefore also isolated from one another by the dielectric. While it is known to connect two electrodes in an electrode assembly to the different terminals of an AC high voltage source so that one of the electrodes receives the high voltage phase and the other electrode is at ground potential, it is in EP 3 320 759 B1 intended to apply the opposite phases of the AC voltage source to the two electrodes. This ensures that the amplitude of the alternating high-voltage signals is doubled in the vicinity of the electrodes, while the excitation fields cancel out at a certain distance from the electrodes, so that the electromagnetic fields that disturb the environment are significantly reduced be reduced.
  • the connecting conductors of the two electrodes run parallel to one another in the narrowest possible contacting extension and contact them there with contact pins of the contacting element.
  • the contacting pins must be arranged close to one another.
  • the voltage amplitudes of 20 kV, for example, used here require a minimum distance from one another, which results from the length of the air path between the contact pins or the connecting conductors required to prevent a flashover. This distance can be maintained if the dielectric for each of the two electrodes has a contact attachment that extends in different directions from the base section of the electrode arrangement.
  • the WO 2019/015717 A1 discloses a plasma treatment device which has two electrodes and is contacted as required via a supply unit.
  • the electrode unit has a coding that can be detected by a detection device of the supply unit, the plasma generation being controlled as a function of the detected coding.
  • this publication discloses a treatment arrangement for treating a surface of a body with a dielectric barrier plasma according to the preamble of claim 1.
  • the DE 10 2011 105 713 A1 discloses a flat electrode arrangement that is connected to the high-voltage potential using cutting contacts. These cutting contacts cut into the dielectric and contact the electrode located therein.
  • the DE 10 2014 220 488 A1 also discloses a device for generating a cold atmospheric pressure plasma by means of two electrodes, the contacting of which is to be effected by means of two clamping tongues of a clamping device.
  • the EP 0 114 919 A1 discloses a pressure contact which consists of two coaxially associated contact pins which are mounted in sockets in a liquid-tight and electrically insulated manner, at least one of which is mounted on a spring body so that it can move axially.
  • U.S. 6,958,670 B2 discloses an electrical connector for interconnecting a first component with a second component having opposed and laterally offset portions.
  • the problem on which the invention is based is therefore to design a treatment arrangement of the type mentioned at the beginning with at least two electrodes in the electrode arrangement in such a way that they can be contacted with as little effort as possible.
  • a treatment arrangement of the type mentioned at the outset is characterized in that at least one of the contact pins is mounted in the contacting element with a dielectric covering and that the at least one dielectric covering is oversized in relation to the associated recess in the dielectric, with which the covering by means of the lever arrangement in a press fit of the casing in the dielectric, avoiding an air gap, when the non-insulated end face of the contact pin contacts the associated electrode.
  • the design according to the invention ensures that the contact pin with its dielectric sheath sits in the dielectric without an air gap, so that there is no direct air path between the contact pins for the at least two electrodes or the at least two electrodes themselves. Rather, the relevant minimum distance is decisively determined by the dielectric properties of the dielectric and the dielectric sheath.
  • the invention can be used when the at least two electrodes are connected to an AC voltage source in a conventional manner, ie one electrode to an AC voltage phase and the other electrode to ground. In this case is It is not absolutely necessary to provide the contact pin, which is connected to the ground connection of the high voltage source, with a dielectric coating. Of course, the protection against flashover is increased if this contact pin is also provided with a dielectric covering in the manner according to the invention which is oversized compared to the associated recess in the dielectric.
  • the present invention is particularly expedient in the case in which the electrode arrangement has two electrodes which are connected to oppositely directed phases of an alternating voltage.
  • the electrode arrangement has two electrodes which are connected to oppositely directed phases of an alternating voltage.
  • it is particularly necessary to provide both contact pins with the dielectric coating according to the invention in order to embed the contact pins in the dielectric with virtually no air gaps when the connection to the associated electrodes is made via the end faces of the contact pins.
  • a ground electrode can also be provided as the third electrode in the electrode arrangement.
  • the ground electrode it may be expedient to arrange the ground electrode in a different layer of a multi-layer structure of the electrode arrangement compared to the two electrodes driven in phase opposition, so that the ground electrode comes to rest in the dielectric between the electrodes driven in phase opposition and the surface to be treated.
  • the ground electrode is insulated from the opposite-phase electrodes by the dielectric.
  • the ground electrode will have openings which allow the formation of a so-called surface plasma due to the excitation field extending through the openings of the ground electrode.
  • the present invention is the configuration with two electrodes driven in phase opposition, for which the surface to be treated or the associated body forms a counter-electrode.
  • the body can be earthed with a ground connection for this purpose. In general, it is sufficient if the body forms a "floating" ground electrode/counter electrode due to its mass.
  • the dielectric covering is designed with at least one step with at least two different external cross sections, the dimensions of the external cross section being reduced towards the non-insulated end face. Accordingly, the recess of the dielectric can be provided with a corresponding gradation. The interaction of the dielectric covering with the recess can ensure an improved and secure press fit of the covering in the recess.
  • the internal cross-section of the cavity and the external cross-section of the envelope are circular in one embodiment, although other cross-sectional shapes, such as square, are also possible.
  • the electrode arrangement is flat and the flat electrodes in it are shielded from the surface to be treated with a flat layer of the dielectric.
  • the shielding of the surface to be treated results from the fact that the dielectric forms a contact surface designed for contact with the surface to be treated, which is preferably structured in order to form air spaces for the formation of the plasma when the dielectric with its contact surface against the surface to be treated surface.
  • the structuring of the surface can be formed in a manner known per se by nubs, a lattice structure, blind-hole-like recesses or the like.
  • the electrodes and the dielectric are flexible.
  • the lever arrangement with which the contacting element is pressed onto the contacting attachment of the dielectric, can expediently be locked in the closed position.
  • a lever arrangement known as a toggle switch can be used as the lever arrangement.
  • the lever arrangement can have a two-armed lever with a pivot axis and an actuating end on one side of the pivot axis and a control end on the other side of the pivot axis, the control end being articulated via a swivel joint with one of the receiving openings opening and closing wall piece is connected, which is rotatably mounted on a pivot axis, wherein the pivot axis is closer to the receiving opening than the pivot joint.
  • the lever arrangement thus forms a toggle joint control, whereby the wall piece can be opened wide to form the receiving opening and when the receiving opening is closed it exerts a suitable contact pressure on the contacting lug of the dielectric if the contacting lug is correctly positioned in the receiving opening.
  • the contact attachment with a mechanical positioning aid in the form of a molded pin or a molded depression which interacts with a corresponding pin or a corresponding depression of the contacting element and the closing of the receiving opening in a possibly locked position of the lever arrangement only enabled when correct positioning is done.
  • the correct positioning also presupposes a suitable engagement of the contact pin with its covering in the associated recess of the dielectric in the press fit.
  • the moving wall piece which forms the receiving opening, can be designed as a hood covering the contact pins in the closed state of the receiving opening.
  • this can have a peripheral wall whose peripheral edge ends parallel to a flat bottom of the receiving opening when the receiving opening is in the closed state. The peripheral edge is thus used to clamp the contacting attachment of the dielectric in the receiving opening, with the flexible dielectric being pressed in by the peripheral edge with the prestressing of the wall piece.
  • a first sensor for the closed position of the lever arrangement can be provided, which controls a switch for interrupting the supply line for the high voltage to the electrodes. The supply of the electrodes with high voltage is therefore only possible when the sensor has detected a closed position of the lever arrangement.
  • a second sensor can detect a complete insertion of the contact attachment into the receiving opening when the receiving opening is closed. This ensures that the contacting element does not conduct any high voltage to the contact pin if no electrode arrangement is connected to the contacting element.
  • Light barriers are suitable as sensors, which interact with corresponding attachments on moving parts of the contacting element.
  • a projection on the lever arrangement can thus protrude into an associated light barrier in order to indicate the closed state of the lever arrangement by interrupting the light barrier.
  • the contacting attachment pushed into the receiving opening can actuate a lever arrangement which has an attachment which engages in a second light barrier and interrupts the light barrier when the contacting attachment is correctly positioned in the receiving opening.
  • the light barriers can also be used in the reverse function, in which the light barriers are not interrupted when the correct positioning of the contact attachment and/or the correct closing of the lever arrangement has taken place.
  • the two light barriers can be arranged on a fork-shaped end of a light barrier body, which has three “prongs”.
  • the two gaps formed in this way can each be bridged by one of the light barriers.
  • the projections on the moving parts of the contacting element can then engage in an associated space between the tines for the respective detection state and thus interrupt the respective light barrier, which is evaluated as a sensor signal.
  • the alternating high-voltage signals exciting the plasma field are preferably pulse signals whose pulse width is significantly smaller than the interval to the next pulse.
  • the excitation pulses appear as a damped oscillation with a strongly (for example exponentially) decreasing pulse amplitude, with the damped wave train thus formed also occupying only part of the interval to the next excitation pulse.
  • the contacting element can be designed as an autonomous device with a battery power supply and its own high-voltage generator stage.
  • two high-voltage generator stages are required, which can each have an inductance, for example.
  • the inductances can be wound in opposite directions, which then results in the high-voltage signals being formed in phase opposition.
  • the supply voltage cable it is also possible to feed the supply voltage cable to the contacting element.
  • the high voltage can be generated in the contacting element, so that it is not necessary to transmit the high voltage to the contacting element, but only to supply it with a standard supply voltage that is not high voltage.
  • the treatment arrangement according to the invention consists of an electrode arrangement 1 and a contacting element 2.
  • FIG. 1 to 7 a first exemplary embodiment of a treatment arrangement according to the invention is shown, in which the contacting element is designed as a self-sufficient device for the complete supply of the electrode arrangement 1, as will be explained in more detail below.
  • the electrode arrangement 1 consists of two electrodes 1 a , 1 b which are flat and are completely embedded in a dielectric 3 .
  • the base section of the dielectric is adjoined centrally on one of its sides by an elongate contact attachment 5 with a width that is significantly reduced compared to the maximum width of the dielectric 3 .
  • a connection conductor 6a, 6b extends from the two electrodes 1a, 1b into the contacting attachment 5, which belongs to the dielectric 3 and is formed in one piece with it.
  • the electrodes 1a, 1b and the connection conductors 6a, 6b are embedded on all sides in the dielectric 3 with its contact attachment 5, so that there is no possibility of contact with the electrodes 1a, 1b and the connection conductors 6a, 6b.
  • the dielectric 3 thus electrically shields all current-carrying parts of the electrodes 1a, 1b and their connection conductors 6a, 6b and prevents a direct flow of current from the electrodes 1a, 1b to a counter-electrode outside the electrode arrangement 1.
  • the two electrodes 1a, 1b and their connection conductors 6a , 6b are flat and insulated from one another along a central axis 7 by material of the dielectric 3 .
  • the central axis 7 runs in figure 1 on the section line EE insofar as this extends over the electrode arrangement 1.
  • the underside 10 of the dielectric 3 chambers 11 are on the underside 10 of the dielectric 3 chambers 11, which are separated by narrow webs 12 from each other.
  • the webs 12 form a lattice structure on the underside 10, in which the chambers 11 are formed in a substantially square shape.
  • the shape and the size of the chambers 11 can be freely selected. They also do not have to be delimited by webs 12, but can also be formed as blind hole-like depressions in the material of the dielectric 3. It is also possible to form air spaces for the plasma that are not limited laterally, for example by forming protruding nubs on the underside 10 of the dielectric in one piece with the material of the dielectric 3 .
  • the contact attachment 5 On the underside 10, the contact attachment 5 has a web-like projection 13 running transversely to the center axis 7, which serves to correctly position the electrode arrangement 1 in the contact element 2 in a manner described in more detail below.
  • figure 2 1 shows that the flat electrodes 1a, 1b are completely embedded in the material of the dielectric, but form a bottom of a recess 14 open to the underside 10 at their end in the contact attachment 5.
  • the high-voltage signals required for operation can be fed to the associated electrode 1a, 1b via the recess 14 .
  • the contacting element 2 serves to supply the high-voltage signals to the electrode arrangement 1 .
  • the receiving opening 18 can be closed by a wall piece 19 which is pivotably mounted on an axis 20 which is stationary with respect to the housing 15 .
  • a trough 21 is formed in the housing upper part 17, into which an actuating lever 22 can be pivoted when the actuating lever 22 closes the receiving opening 18 with the wall piece 19.
  • the wall piece 19 forms a hood, which forms an edge 23 that is closed at the side and toward the electrode arrangement 1 on its underside of the wall piece 19 is parallel to the planar contacting attachment 5 of the electrode arrangement 1 in the contacting state of the electrode arrangement 1 with the contacting element 2 .
  • the wall piece 19 designed as a hood has a certain hood height, so that another axis of rotation 24 is located above the stationary axis 20 .
  • the wall piece 19 is connected via the axis of rotation 24 to an intermediate link 25, which is connected to a further swivel joint 26 on the one hand with a projection on the actuating lever 22 and on the other hand with a clamping lever 27, which in turn is mounted by a swivel joint 28 that is stationary with respect to the housing 15.
  • figure 2 shows the actuating arrangement for the wall piece 19 in the open state.
  • Figure 2a is an enlarged view of detail B in figure 2 .
  • FIG 2 makes it clear that the receiving opening 18 is delimited at the bottom by a substantially flat base 29, from which a sheathed with a dielectric sheath 30 contact pin 31 protrudes upwards.
  • the shape of the dielectric covering 30 corresponds to the shape of the recess 14 in the contacting attachment 5 of the electrode arrangement 1.
  • the electrode arrangement 1 is contacted correctly relative to the contacting element 2 and the dielectric covering 30 of the contact pin 31 can engage in the recess 14 when the wall piece 19 is closed and the lower edge 23 of the wall piece 19 with bias against the material of the dielectric 3 presses.
  • a light barrier holder 33 in which two light barriers are arranged one behind the other between two outer walls and an intermediate wall, each of which forms a gap which can be bridged by a light barrier in each case.
  • the clamping lever 27 is provided in one piece with a protruding projection 34 for the interaction with one of the light barriers.
  • a two-armed lever 35 mounted on a stationary axis of rotation 36, one lever arm 37 protrudes into the receiving opening 18, while the other lever arm can protrude with a free end in the area of the second light barrier.
  • figure 2 also shows schematically in the contacting element 2 an electrical control 39 which supplies the contact pin 31 with high-voltage signals and the light barriers in the light barrier holder 33 with a suitable operating voltage.
  • the Figures 3, 4 and 4a show the arrangement according to the Figures 1 and 2 when the electrode arrangement 1 is pushed into the contacting element 2 and when the receiving opening 18 is closed by the wall piece 19 and into which the contacting projection 5 of the electrode arrangement 1 protrudes.
  • the switching states for the two light barriers are in the Figures 7, 7a and 8, 8a shown in a cross section.
  • the enlarged representations in the Figures 7a and 8a reveal the light barrier holder 33.
  • a first light barrier 44 can be seen, which is represented by a light beam.
  • parallel wall pieces 43' form a gap 42' open on one side, in which a second light barrier 45 is formed.
  • the extension 34 of the clamping lever 27 interacts with the first light barrier and the bent end 41 of the lever arm 38 interacts with the second light barrier.
  • Figure 7 and 7a make it clear that when the actuating lever 22 is open - and thus when the receiving opening 18 is open - the first light barrier 44 indicates that the emitted light beam has been received - i.e. no interruption of the light beam - while the light beam of the second light barrier 45 passes through the bent end 41 of the Lever arm 38 of the two-armed lever 35 is interrupted.
  • Figure 8a shows the light barriers in the closed state of the actuating lever 22, when the contact attachment 5 of the electrode arrangement 1 has been correctly inserted into the receiving opening 18.
  • the bent end 41 is slightly raised in the gap 42', so that the second light barrier 45 is released, while the shoulder 34 of the clamping lever 27 now interrupts the light beam of the first light barrier.
  • FIG 9 clarifies in an enlarged detail the contacting of the electrodes 1a, 1b with the high voltage via the contact pin 31 in the contacting element 2.
  • the contacting attachment 5 of the electrode arrangement 1 correctly inserted into the contacting element 2 engages with the web-shaped projection 13 in the associated transverse groove 32 in the base 29 the receiving opening 18 a.
  • the recess 14 on the underside 10 of the dielectric 3 is pressed onto the correspondingly shaped dielectric covering 30 of the contact pin 31 .
  • the dielectric sheath 30 completely surrounds the contact pin 31 to the dielectric 3 of the electrode arrangement 1, with the exception of a front end 46 of the contact pin 31, which is not insulated.
  • the contact pin 31 consists of a solid conductive material, in particular metal.
  • the electrode 1a, 1b made of a conductive material, which is completely embedded in the dielectric 3 of the electrode arrangement 1 with the exception of the recess 14, is pressed against the non-insulated front end 46 of the contact pin 31 by the pretension exerted by the wall piece 19. whereby a suitable contact is made for the introduction of the high voltage signals into the electrode 1a, 1b.
  • the dielectric casing 30 is produced with a slight oversize in relation to the recess 14 which is shaped in the same way, so that the dielectric casing 30 comes into a press fit in the recess 14 as a result of the pressure exerted by the wall piece 19 .
  • the dielectric covering and the recess 14 can be of slightly conical design, so that a funnel-like introduction of the dielectric covering 30 into the recess 14 results.
  • insertion is made even easier by the fact that the dielectric covering 30 tapers in steps towards the front end 46 of the contact pin 31, resulting in two sections of approximately the same length with external cross sections that differ in steps.
  • the outer cross section is preferably circular.
  • the press fit of the dielectric covering 30 in the recess 14 effectively prevents the formation of an air gap at the transition between the dielectric 3 and the dielectric covering 30 since the dielectric 3 and the dielectric covering 30 are formed with sufficient elasticity.
  • the formation of an air gap directed in the longitudinal direction of the contact pin 31 can be prevented even more reliably if the wall of the recess 14 or of the dielectric covering 30 is provided with fine, circumferential grooves, as is shown in FIG figure 9 is indicated.
  • Through the resulting between the grooves thin lips is not only the insertion of the dielectric sheath 30 in the press fit in the Recess 14 facilitates, but also ensures that no continuous air gap can form in the longitudinal direction of the dielectric sheath with certainty.
  • the electrode arrangement 1 with the dielectric 3 and the electrodes 1a, 1b is preferably flexible.
  • the electrodes 1a, 1b can be formed by a thin metal foil, but in particular also consist of a plastic polymer which is made conductive by suitable additives. In this way, the dielectric and the electrode can consist of related materials that can be easily connected to one another over their entire surface, so that the risk of delamination within the electrode arrangement is also avoided when the electrode arrangement is bent to a greater or lesser extent during use.
  • figure 10 shows in a plan view of the housing 15 of the contacting element 2 with the housing upper part 17 removed that a controller 39 is arranged in the housing, which includes a microcontroller 47, a high-voltage generator stage 48 and an accumulator stage 49.
  • the contacting element 2 is designed as a complete control and supply device for the electrode arrangement 1 for producing a dielectric barrier plasma.
  • a contacting element which contains the controller 39, but not the accumulator stage 49, because in this case the contacting element 2 is connected to an external power supply 51 via a cable connection 50.
  • the controller 39 can also contain the high-voltage generator stage 48 in this case, so that a normal AC voltage or a low-voltage DC voltage can be supplied via the external power supply.
  • a second embodiment of the invention is shown. It differs from the first embodiment only in the different design of the contacting element 2', with which the same electrode arrangement 1 can be contacted.
  • the contacting element 2' is designed with an actuating lever 52 in the form of a rocker 54 that can be pivoted about a fixed axis of rotation 53 has, while at the other end of the rocker 54 a locking button 55 is effective, which will be explained below.
  • the locking button 55 is slidably mounted on the lever 56 of the rocker 54 remote from the electrode and is under a pretension that pushes the locking button away from the lever 56 by two compression springs 57.
  • the lever 58 close to the electrode, which forms the wall piece 19, is secured by a housing 15 'of the Contacting element 2 'supported pair of compression springs 66 ( figure 16 ) in the in figure 14 shown open position of the receiving opening 18 'held.
  • the locking button 55 To unlock, ie to open the receiving opening 19, for example for the purpose of removing the electrode arrangement 1, the locking button 55 must be pressed against the force of the compression springs 57 in the direction of the electrode arrangement 1. In order to facilitate this, there is a suitable corrugation 61 on the upper side of the locking button 55, which makes it difficult for an actuating finger to slip off the locking button.
  • figure 13 shows in the top view of the contacting element 2 ⁇ that this - like the contacting element 2 of the first embodiment - is equipped with operating buttons 62/63 for the electrical functions (on/off; high voltage on/off) and with display light sources 64, 65 as indicator lights for the determined sensor states (lever locked, contact attachment 5 inserted correctly into the receiving opening 18,18') can be provided. Furthermore, a corrugation 61' for the application of pressure can also be provided on the lever 58 close to the electrode.
  • the second embodiment described Figures 13 to 16 is structurally simpler, while the first embodiment is user-friendly.
  • the increased ease of use results from the fact that the receiving opening 18 can be made larger due to the leverage, which facilitates the correct insertion of the electrode arrangement 1 into the contacting element 2 .
  • the leverage for the actuating lever ensures that the pressing force can be exerted more easily in the locked state of the lever arrangement.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Plasma Technology (AREA)
  • Surgical Instruments (AREA)
  • Treatments Of Macromolecular Shaped Articles (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (12)

  1. Ensemble de traitement pour le traitement d'une surface d'un corps avec un plasma à barrière diélectrique,
    comprenant un ensemble d'électrodes (1) dans lequel au moins une électrode (1a, 1b) est disposée dans une portion de base de l'ensemble d'électrodes (1), est complètement protégée par un diélectrique (3) par rapport à la surface à traiter et s'étend avec un conducteur de connexion (6a, 6b) dans un appendice de mise en contact (5) du diélectrique (3),
    et comprenant un élément de mise en contact (2, 2') qui présente une ouverture de réception (18, 18') pour l'appendice de mise en contact (5) et un dispositif à levier pour ouvrir et fermer l'ouverture de réception (18, 18') et pour presser une broche de contact (31) sur l'électrode (1a, 1b) à travers un évidement préfabriqué (14) du diélectrique (3) afin de fournir une connexion d'une source de haute tension alternative à l'électrode (1a, 1b),
    dans lequel l'ensemble d'électrodes (1) comprend au moins deux électrodes (1a, 1b) qui sont disposées dans la portion de base et isolées l'une de l'autre par le diélectrique (3) et qui s'étendent chacune avec un conducteur de connexion (6a, 6b) jusque dans l'appendice de mise en contact (5),
    pour chaque conducteur de connexion (6a, 6b), il existe un évidement (14) dans le diélectrique (3) et une broche de contact respective (31),
    et l'une au moins des broches de contact est réalisée avec une surface frontale non isolée (46) pour établir un contact avec l'électrode associée (1, 1a),
    caractérisé en ce que ladite au moins une des broches de contact (31) est montée dans l'élément de mise en contact (2) avec une enveloppe diélectrique (30),
    et en ce que ladite au moins une enveloppe diélectrique (30) présente, par rapport à l'évidement associé (14) dans le diélectrique (3), une surdimension avec laquelle l'enveloppe (30) parvient, au moyen du dispositif à levier, dans un ajustement serré de l'enveloppe (30) dans le diélectrique (3), évitant un entrefer, lorsque la surface frontale non isolée (46) de la broche de contact (31) entre en contact avec l'électrode associée (1a, 1b).
  2. Ensemble de traitement selon la revendication 1,
    caractérisé en ce que l'enveloppe diélectrique (30) présente deux sections transversales extérieures se raccordant l'une à l'autre de manière progressive par au moins un étagement, la section transversale extérieure étant réduite vers l'extrémité frontale non isolée (46) de la broche de contact (31).
  3. Ensemble de traitement selon la revendication 2,
    caractérisé en ce que l'évidement (14) du diélectrique (3) présente un étagement de sa section transversale intérieure correspondant à l'étagement de l'enveloppe diélectrique (30).
  4. Ensemble de traitement selon l'une des revendications 1 à 3,
    caractérisé en ce qu'au moins une section transversale intérieure du diélectrique et/ou une section transversale extérieure de l'enveloppe diélectrique (30) est réalisée de manière à se rétrécir coniquement vers l'extrémité frontale non isolée (46) de la broche de contact (31).
  5. Ensemble de traitement selon l'une des revendications 1 à 4,
    caractérisé en ce que l'ensemble d'électrodes (1) est plat, dans lequel les électrodes plates (1a, 1b) sont protégées vis-à-vis de la surface à traiter par une couche plate du diélectrique (3).
  6. Ensemble de traitement selon l'une des revendications 1 à 5,
    caractérisé en ce que les électrodes (1a, 1b) et le diélectrique (3) sont flexibles.
  7. Ensemble de traitement selon l'une des revendications 1 à 6,
    caractérisé en ce que le dispositif à levier comprend un levier d'actionnement (35) à deux bras avec une extrémité d'actionnement d'un côté et une extrémité de commande de l'autre côté,
    en ce que l'extrémité de commande est reliée de manière articulée, par l'intermédiaire d'une articulation rotative, à une pièce de paroi (19) ouvrant et fermant l'ouverture de réception, qui est montée de manière rotative sur un axe de rotation (20) et est reliée de manière rotative à l'extrémité de commande par l'intermédiaire d'un bras intermédiaire (25).
  8. Ensemble de traitement selon la revendication 7,
    caractérisé en ce que la pièce de paroi (19) est conçue comme un capot coiffant les broches de contact (31) à l'état fermé de l'ouverture de réception (18).
  9. Ensemble de traitement selon la revendication 8,
    caractérisé en ce que le capot présente un bord (23) qui ferme la pièce de paroi (19) et qui, à l'état fermé de l'ouverture de réception (18), se termine parallèlement à un fond plan (29) de l'ouverture de réception (18).
  10. Ensemble de traitement selon la revendication 9,
    caractérisé en ce qu'à l'état fermé de l'ouverture de réception (18), le diélectrique (3) de l'appendice de mise en contact (5) est pincé sous précontrainte entre le bord (23) du capot et le fond plan (29).
  11. Ensemble de traitement selon l'une des revendications 1 à 10,
    caractérisé par un premier capteur de la position de fermeture du dispositif à levier et par un interrupteur commandé par le capteur pour interrompre l'alimentation en haute tension des électrodes (1a, 1b).
  12. Ensemble de traitement selon l'une des revendications 1 à 11,
    caractérisé par un capteur détectant une insertion complète de l'appendice de mise en contact (5) dans l'ouverture de réception (18, 18') après la fermeture de l'ouverture de réception (18, 18').
EP20720761.4A 2019-04-15 2020-04-14 Ensemble de traitement pour le traitement d'une surface d'un corps au moyen d'un plasma à barrière diélectrique Active EP3957137B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102019109940.4A DE102019109940B4 (de) 2019-04-15 2019-04-15 Behandlungsanordnung für die Behandlung einer Oberfläche eines Körpers mit einem dielektrisch behinderten Plasma
PCT/EP2020/060447 WO2020212338A1 (fr) 2019-04-15 2020-04-14 Ensemble de traitement pour le traitement d'une surface d'un corps au moyen d'un plasma à barrière diélectrique

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EP3957137A1 EP3957137A1 (fr) 2022-02-23
EP3957137B1 true EP3957137B1 (fr) 2023-01-25

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US (1) US20220304132A1 (fr)
EP (1) EP3957137B1 (fr)
JP (1) JP2022528905A (fr)
KR (1) KR20210150514A (fr)
CN (1) CN113826447A (fr)
AU (1) AU2020257974A1 (fr)
CA (1) CA3136777A1 (fr)
DE (1) DE102019109940B4 (fr)
EA (1) EA202192675A1 (fr)
ES (1) ES2941616T3 (fr)
WO (1) WO2020212338A1 (fr)
ZA (1) ZA202107811B (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102021128463A1 (de) 2021-11-02 2023-05-04 Cinogy Gmbh Plasma-Behandlungsgerät zur Plasmabehandlung einer Hautoberfläche
DE102021128469A1 (de) 2021-11-02 2023-05-04 Cinogy Gmbh Plasma-Behandlungsgerät zur Plasmabehandlung einer Hautoberfläche

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3248336C1 (de) * 1982-12-28 1984-07-05 Fa. Carl Freudenberg, 6940 Weinheim Druckkontakt
JPH05299142A (ja) * 1992-04-20 1993-11-12 Fujitsu Ltd シート状印刷ケーブル用コネクタ
US6958670B2 (en) * 2003-08-01 2005-10-25 Raytheon Company Offset connector with compressible conductor
DE102011105713B4 (de) * 2011-06-23 2014-06-05 Cinogy Gmbh Elektrodenanordnung für eine dielektrisch behinderte Gasentladung
JP6096587B2 (ja) * 2013-05-13 2017-03-15 株式会社アイ・メデックス フラットケーブルにおけるコネクタとの接続構造及びコネクタ
DE102014013716B4 (de) * 2014-09-11 2022-04-07 Cinogy Gmbh Elektrodenanordnung zur Ausbildung einer dielektrisch behinderten Plasmaentladung
DE102014220488A1 (de) * 2014-10-09 2016-04-14 Inp Greifswald E.V. Vorrichtung zum Erzeugen eines kalten Atmosphärenplasmas
DE102015101391B4 (de) * 2015-01-30 2016-10-20 Leibniz-Institut für Plasmaforschung und Technologie e.V. (INP Greifswald) Plasmaerzeugungseinrichtung, Plasmaerzeugungssystem, Verfahren zur Erzeugung von Plasma und Verfahren zur Desinfektion von Oberflächen
DE102016118569A1 (de) * 2016-09-30 2018-04-05 Cinogy Gmbh Elektrodenanordnung zur Ausbildung einer dielektrisch behinderten Plasmaentladung
DE102017116305A1 (de) * 2017-07-19 2019-01-24 Cinogy Gmbh Plasma-Behandlungsgerät

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WO2020212338A1 (fr) 2020-10-22
EA202192675A1 (ru) 2022-01-19
AU2020257974A1 (en) 2021-11-11
DE102019109940A1 (de) 2020-10-15
CA3136777A1 (fr) 2020-10-22
EP3957137A1 (fr) 2022-02-23
CN113826447A (zh) 2021-12-21
KR20210150514A (ko) 2021-12-10
ZA202107811B (en) 2022-08-31
US20220304132A1 (en) 2022-09-22
ES2941616T3 (es) 2023-05-24
JP2022528905A (ja) 2022-06-16
DE102019109940B4 (de) 2020-12-10

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