WO2012023586A1 - イオン風発生体及びイオン風発生装置 - Google Patents
イオン風発生体及びイオン風発生装置 Download PDFInfo
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- WO2012023586A1 WO2012023586A1 PCT/JP2011/068696 JP2011068696W WO2012023586A1 WO 2012023586 A1 WO2012023586 A1 WO 2012023586A1 JP 2011068696 W JP2011068696 W JP 2011068696W WO 2012023586 A1 WO2012023586 A1 WO 2012023586A1
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- electrode
- ion wind
- dielectric
- inner electrode
- wind generator
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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
- H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
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- the present invention relates to an ion wind generator and an ion wind generator.
- Patent Document 1 An apparatus that induces ion wind by the movement of electrons or ions is known.
- an AC voltage is applied to two electrodes provided on a substrate-like dielectric material to generate a dielectric barrier discharge, and an ion wind is generated on one main surface of the dielectric material.
- Patent Document 1 focuses only on generating an ion wind on one main surface of a substrate-like dielectric, and focuses on the influence of two electrodes on the other surface of the dielectric such as the other main surface. Not. As a result, for example, an ion wind in the opposite direction to the one main surface is induced on the other main surface, and the air flow of the ion wind on the one main surface is reduced. There is a risk that it will not be demonstrated.
- an ion wind generator and an ion wind generator that can suitably generate an ion wind along the surface of the dielectric.
- An ion wind generator includes a dielectric having a first surface and a second surface facing in different directions, an inner electrode disposed in the dielectric, and the inner electrode.
- a first electrode disposed on the first surface side; and a second electrode disposed on the second surface side with respect to the inner electrode.
- the inner electrode has a first downstream region located in a first direction along the first surface with respect to the first electrode, and a voltage is applied between the inner electrode and the first electrode.
- An ion wind that can be induced along one surface, a second downstream region located in a second direction along the second surface with respect to the second electrode, and a voltage between the second electrode and the second electrode Can be applied to induce an ion wind along the second surface.
- An ion wind generator includes a dielectric having first and second surfaces facing in different directions, an inner electrode disposed in the dielectric, and the inner electrode with respect to the inner electrode. A voltage is applied between the first electrode disposed on the first surface side, the second electrode disposed on the second surface side with respect to the inner electrode, and the inner electrode and the first electrode. And a power source for applying a voltage between the inner electrode and the second electrode.
- the inner electrode has a first downstream region located in a first direction along the first surface with respect to the first electrode, and a voltage is applied between the inner electrode and the first electrode.
- An ion wind that can be induced along one surface, a second downstream region located in a second direction along the second surface with respect to the second electrode, and a voltage between the second electrode and the second electrode Can be applied to induce an ion wind along the second surface.
- an ion wind along the surface of the dielectric can be suitably generated.
- FIG. 1A is a perspective view schematically showing an ion wind generator according to the first embodiment of the present invention
- FIG. 1B is a cross-sectional view taken along line Ib-Ib in FIG. is there. It is sectional drawing explaining the manufacturing method of the ion wind generator of FIG. It is sectional drawing which shows typically the principal part of the ion wind generator which concerns on the 2nd Embodiment of this invention. It is sectional drawing explaining the manufacturing method of the ion wind generator of FIG. It is the perspective view and front view which show typically the principal part of the ion wind generator which concerns on the 3rd Embodiment of this invention.
- FIG. 1A is a perspective view schematically showing an ion wind generator 1 according to the first embodiment of the present invention
- FIG. 1B is a cross-sectional view taken along the line Ib-Ib in FIG. It is.
- the ion wind generator 1 is configured as an apparatus that generates an ion wind that flows in the directions indicated by the arrows y1 and y2 (FIG. 1B).
- the direction in which the ion wind flows may be referred to as the x direction, the width direction of the ion wind as the y direction, and the height direction of the ion wind as the z direction.
- the ion wind generator 1 includes an ion wind generator 3 that generates an ion wind, and a drive unit 5 (FIG. 1A) that drives and controls the ion wind generator 3.
- the ion wind generator 3 includes a dielectric 7, a first electrode 9 ⁇ / b> A, a second electrode 9 ⁇ / b> B, and an inner electrode 11 provided on the dielectric 7.
- the first electrode 9A and the second electrode 9B are referred to as “outer electrode 9”, and the two may not be distinguished.
- the ion wind generator 3 generates a dielectric barrier discharge when a voltage is applied between the outer electrode 9 and the inner electrode 11 separated by the dielectric 7, and generates an ion wind.
- the dielectric 7 is formed in a flat plate shape (substrate shape) having a constant thickness, for example, and has a first main surface 7a and a second main surface 7b on the back surface thereof.
- the ion wind flows on the first main surface 7a along the first main surface 7a as shown by the arrow y1, and on the second main surface 7b along the second main surface 7b as shown by the arrow y2. Flowing.
- the ion wind flowing on the first main surface 7a and the ion wind flowing on the second main surface 7b flow in the same direction (x direction).
- the planar shape of the dielectric 7 may be an appropriate shape, but FIG. 1 illustrates a case where the dielectric 7 is a rectangle having sides parallel to the x direction and the y direction.
- the dielectric 7 is configured, for example, by laminating a first insulating layer 13A and a second insulating layer 13B (hereinafter simply referred to as “insulating layer 13”, which may not be distinguished from each other).
- insulating layer 13 hereinafter simply referred to as “insulating layer 13”, which may not be distinguished from each other.
- FIG. 1 for convenience of explanation, the boundary line between the first insulating layer 13A and the second insulating layer 13B is clearly shown.
- the first insulating layer 13A and the second insulating layer 13B are It is integrated and the boundary line may not be observable.
- the position of the boundary line can be specified from the position of the inner electrode 11 as will be understood from the following description.
- the insulating layer 13 is formed in a flat plate shape having a constant thickness, for example.
- 13 A of 1st insulating layers have the 1st main surface 7a and the 3rd main surface 13c (FIG.1 (b)) of the back.
- the second insulating layer 13B has a second main surface 7b and a fourth main surface 13d (FIG. 1B) on the back surface thereof.
- the two insulating layers 13 have the same thickness in this embodiment. Further, the planar shapes of the two insulating layers 13 are the same as each other, for example.
- Each insulating layer 13 may also be formed from a plurality of insulating layers.
- the dielectric 7 may be formed of an inorganic insulator or an organic insulator.
- the inorganic insulator include ceramic and glass.
- the ceramic include an aluminum oxide sintered body (alumina ceramic), a glass ceramic sintered body (glass ceramic), a mullite sintered body, an aluminum nitride sintered body, a cordierite sintered body, and a silicon carbide sintered body.
- Examples include ligation.
- the organic insulator include polyimide, epoxy, and rubber.
- the first electrode 9A is stacked on the first main surface 7a
- the second electrode 9B is stacked on the second main surface 7b
- the inner electrode 11 is disposed between the two insulating layers 13.
- the inner electrode 11 is disposed in the dielectric 7
- the first electrode 9A is disposed on the first main surface 7a side with respect to the inner electrode 11
- the second electrode 9B is disposed on the inner electrode 11. Arranged on the second main surface 7b side. Thereby, these electrodes are separated by the dielectric 7.
- the two outer electrodes 9 are set to have the same shape and position except for the position in the thickness direction (z direction), for example. That is, the two outer electrodes 9 are formed in the same shape, and the positions in the flow direction (x direction) and the width direction (y direction) are the same. This is to make the air volume and the like the same on the first main surface 7a side and the second main surface 7b side.
- the inner electrode 11 is a first downstream region (in this embodiment, the inner electrode in the downstream direction in the flow direction (the positive side in the x direction, the first direction along the first main surface 7a) with respect to the first electrode 9A. 11). Thereby, the induction
- the inner electrode 11 is a second downstream region (this embodiment) located on the downstream side in the flow direction with respect to the second electrode 9B (the positive side in the x direction, the second direction along the second main surface 7b). Then, the entire inner electrode 11) is included. Thereby, the induction
- the inner electrode 11 is arranged with a position shifted from the outer electrode 9 in the flow direction (positive side in the x direction). Due to this deviation, it is possible to induce ion wind with the outer electrode 9 side as the upstream side and the inner electrode 11 side as the downstream side.
- the inner electrode 11 when the first main surface 7a or the second main surface 7b is viewed in plan, the inner electrode 11 is adjacent to the outer electrode 9 without a gap in the x direction.
- the inner electrode 11 when the first main surface 7a or the second main surface 7b is viewed in plan, a part of the upstream side overlaps the whole of the outer electrode 9 or a part of the downstream side in the x direction.
- the downstream area may be a part of the inner electrode 11) or may be separated from the outer electrode 9 by a predetermined gap.
- the outer electrode 9 and the inner electrode 11 are arranged so that the inner electrode 11 overlaps a part of the outer electrode 9 in the x direction when the first main surface 7a or the second main surface 7b is viewed in plan. It may be displaced, or the inner electrode 11 may be displaced so as to overlap the entire outer electrode 9. Further, when the first main surface 7a or the second main surface 7b is viewed in plan, the outer electrode 9 and the inner electrode 11 may be shifted so as to be adjacent to each other with no gap in the x direction. It may be shifted (separated by a predetermined gap).
- the distance between the first electrode 9A and the inner electrode 11 in the thickness direction (z direction), the second electrode 9B and the inner electrode 11 Is the same distance. Further, since the positions of the two outer electrodes 9 in the flow direction (x direction) are the same, the distance between the first electrode 9A and the inner electrode 11 and the second electrode 9B and the inner side in the flow direction (x direction). The distance to the electrode 11 is the same. Further, from these, in the xz plane, the distance between the first electrode 9A and the inner electrode 11 (first downstream region), and the distance between the second electrode 9B and the inner electrode 11 (second downstream region) Are the same.
- the outer electrode 9 and the inner electrode 11 are, for example, formed in a layered shape (including a flat plate shape) with a constant thickness.
- the planar shape of these electrodes may be an appropriate shape, but FIG. 1 illustrates a case where the electrodes are rectangular having sides parallel to the x direction and the y direction. Note that the lengths of the outer electrode 9 and the inner electrode 11 in the y direction are set to be the same, for example.
- the outer electrode 9 and the inner electrode 11 are made of a conductive material such as metal.
- a conductive material such as metal.
- the metal include tungsten, molybdenum, manganese, copper, silver, gold, palladium, platinum, nickel, cobalt, and alloys containing these as a main component.
- the driving unit 5 (FIG. 1A) includes a power supply device 15 that applies an AC voltage between the outer electrode 9 and the inner electrode 11, and a control device 19 that controls the power supply device 15.
- the two outer electrodes 9 are connected in parallel by wiring provided on the dielectric 7 or other wiring. Therefore, the power supply device 15 applies voltages having the same voltage value, frequency, and phase between the first electrode 9A and the inner electrode 11 and between the second electrode 9B and the inner electrode 11.
- the AC voltage applied by the power supply device 15 may be a voltage whose potential is continuously changed, represented by a sine wave or the like, or a pulse-like voltage whose potential change is discontinuous.
- the alternating voltage may be one in which the potential varies with respect to the reference potential in both the outer electrode 9 and the inner electrode 11, or one of the outer electrode 9 and the inner electrode 11 is connected to the reference potential, and the other The potential may vary only with respect to the reference potential.
- the fluctuation of the potential may be positive and negative with respect to the reference potential, or may be only positive and negative with respect to the reference potential.
- FIG. 1A illustrates a case where a reference potential is applied to the outer electrode 9 and an AC voltage is applied so that the potential of the inner electrode 11 varies.
- the reference potential is preferably the same as the ground potential (reference potential in a narrow sense).
- the control device 19 controls, for example, on / off of voltage application by the power supply device 15 according to a predetermined sequence or user operation, or the magnitude of the applied voltage.
- the dimensions of the dielectric 7, the outer electrode 9 and the inner electrode 11, and the magnitude and frequency of the AC voltage vary depending on the technology to which the ion wind generator 1 is applied or the nature of the required ion wind. It may be set appropriately according to the circumstances.
- FIG. 2 is a schematic cross-sectional view illustrating a method for manufacturing the ion wind generator 3.
- the dielectric 7 is formed by laminating a first insulating layer 13A provided with the first electrode 9A and a second insulating layer 13B provided with the second electrode 9B and the inner electrode 11. Manufactured by. Specifically, taking the case where the dielectric 7 is composed of a ceramic sintered body as an example, the following is performed.
- a ceramic green sheet to be the insulating layer 13 is prepared.
- the ceramic green sheet is formed by forming a slurry prepared by adding and mixing an appropriate organic solvent and solvent to the raw material powder into a sheet shape by a forming method such as a doctor blade method or a calender roll method.
- a forming method such as a doctor blade method or a calender roll method.
- the raw material powder is alumina (Al 2 O 3 ), silica (SiO 2 ), calcia (CaO), magnesia (MgO), or the like.
- a conductive paste to be the first electrode 9A is provided on the surface to be the first main surface 7a of the ceramic green sheet (first insulating layer 13A). Further, a conductive paste to be the second electrode 9B is provided on the surface to be the second main surface 7b of the ceramic green sheet (second insulating layer 13B), and a conductive paste to be the inner electrode 11 is provided on the surface to be the fourth main surface 13d. .
- the conductive paste is produced, for example, by adding an organic solvent and an organic binder to a metal powder such as tungsten, molybdenum, copper or silver and mixing them.
- a dispersant, a plasticizer, or the like may be added as necessary.
- Mixing is performed by kneading means such as a ball mill, a three-roll mill, or a planetary mixer.
- the conductive paste is printed and applied to the ceramic green sheet by using a printing means such as a screen printing method.
- the ceramic green sheet to be the first insulating layer 13A and the ceramic green sheet to be the second insulating layer 13B are laminated, and the conductive paste and the ceramic green sheet are fired simultaneously.
- the dielectric 7 in which the outer electrode 9 and the inner electrode 11 are arranged, that is, the ion wind generator 3 is formed.
- the conductive paste when fired at the same time as the ceramic green sheet, it is necessary to match the sintering behavior of the ceramic green sheet or to increase the bonding strength with the sintered dielectric by relaxing the residual stress. Glass or ceramic powder may be added.
- the ion wind generator 3 is placed in the atmosphere, and air exists around the ion wind generator 3.
- the ion wind generator 3 may be used by being placed in a specific type of gas atmosphere (for example, in a nitrogen atmosphere).
- Electrons or ions in the plasma move due to the electric field formed by the outer electrode 9 and the inner electrode 11. Neutral molecules also move with electrons or ions. In this way, an ionic wind is induced.
- the ion wind is generated on the inner side on the first main surface 7a and the second main surface 7b by electrons or ions moving from the outer electrode 9 side to the inner electrode 11 side. It is induced around a region overlapping with the electrode 11 and flows from the outer electrode 9 side to the inner electrode 11 side.
- the first electrode 9A and the second electrode 9B are provided under the same conditions except for the position in the z direction, and the same voltage is applied to the first main surface.
- the 7a side and the second main surface 7b side ion winds having the same wind direction, wind speed, and air volume are generated.
- the ion wind generator 3 includes the dielectric 7 having the first main surface 7a and the second main surface 7b on the back surface thereof, the inner electrode 11 disposed in the dielectric 7, It has the 1st electrode 9A arrange
- the inner electrode 11 has a first downstream region located in the first direction (positive side in the x direction) along the first main surface 7a with respect to the first electrode 9A, and is second with respect to the second electrode 9B. It has a second downstream area located in the second direction (positive side in the x direction) along the main surface 7b.
- the first electrode 9A and the second electrode 9B are displaced in the same direction along the first main surface 7a and the second main surface 7b with respect to the inner electrode 11 (the first direction and the second direction are the same direction). .
- the ion wind generated on the first main surface 7a and the ion wind generated on the second main surface 7b flow in the same direction as indicated by arrows y1 and y2 in FIG.
- the second electrode 9B is not provided, focusing only on the generation of the ion wind of the arrow y1 on the first main surface 7a, as in the prior art, the first electrode on the second main surface 7b Due to the voltage applied to 9A and the inner electrode 11, an ion wind in the direction opposite to the arrow y2 is generated.
- the wind speed and the air volume of the ion wind indicated by the arrow y1 are reduced.
- such inconvenience is solved.
- the dielectric 7 is a substrate configured by laminating a plurality of flat (two in this embodiment) insulating layers 13.
- the first main surface 7 a and the second main surface 7 b are both surfaces of the substrate facing the stacking direction of the plurality of insulating layers 13.
- the first electrode 9A is a layered electrode laminated on the first major surface 7a.
- the second electrode 9B is a layered electrode laminated on the second major surface 7b.
- the inner electrode 11 is a layered electrode disposed anywhere between the plurality of insulating layers 13.
- the ion wind generator 3 has the same configuration as that of the multilayer wiring board, and various techniques related to the multilayer wiring board can be used. As a result, for example, it is easy to realize the ion wind generator 3 excellent in mechanical strength, thermal strength, and electrical characteristics, and it is easy to optimize the manufacturing method and reduce costs.
- the dielectric 7 is made of ceramic. Therefore, the ion wind generator 3 excellent in mechanical strength, thermal strength, and electrical characteristics can be realized.
- the inner electrode 11 embedded in the dielectric 7 can be formed by simultaneous firing of the conductive paste and the ceramic green sheet, and the ion wind generator 3 can be manufactured. Easy.
- the first electrode 9A and the second electrode 9B have the same distance from the inner electrode 11 (the distance (shortest distance) between the first electrode 9A and the first downstream area, the second electrode 9B, and the second lower electrode 9B).
- the distance (shortest distance) to the basin is the same.) Therefore, it is easy to generate an ion wind having the same wind speed on the first main surface 7a and the second main surface 7b. As a result, for example, unintended deflection of the ion wind at the junction of the ion wind on the first main surface 7a and the ion wind on the second main surface 7b is suppressed.
- the first electrode 9A and the second electrode 9B are exposed to the outside of the dielectric 7, and the power supply device 15 applies a reference potential to the first electrode 9A and the second electrode 9B.
- a potential that varies with respect to the reference potential is applied to the inner electrode 11.
- the first main surface 7a and the second main surface 7b are examples of the first surface and the second surface of the present invention, and the positive side in the x direction is the first direction and the second surface.
- the inner electrode 11 is an example of the first downstream region and the second downstream region of the inner electrode, and the power supply device 15 is an example of the power source of the present invention.
- FIG. 3 is a cross-sectional view schematically showing a main part of the ion wind generating device 101 according to the second embodiment of the present invention.
- the configuration of the dielectric 107 and the configuration of the inner electrode 111 in the ion wind generator 103 are different from those in the first embodiment. Specifically, it is as follows.
- the dielectric 107 is configured by laminating a first insulating layer 13A, a second insulating layer 13B, and a third insulating layer 13C interposed therebetween.
- the first insulating layer 13A and the second insulating layer 13B may have the same configuration as the first insulating layer 13A and the second insulating layer 13B of the first embodiment.
- the third insulating layer 13C has substantially the same configuration as the first insulating layer 13A and the second insulating layer 13B.
- the thickness of the third insulating layer 13C may be set as appropriate, and FIG. 3 illustrates the case where the third insulating layer 13C is formed thinner than the first insulating layer 13A and the second insulating layer 13B. is doing.
- the inner electrode 111 has a third electrode 10 ⁇ / b> C, a fourth electrode 10 ⁇ / b> D, and a via conductor 12.
- the third electrode 10C, the fourth electrode 10D, and the via conductor 12 are connected to each other, and function as the inner electrode 111 as a whole.
- the third electrode 10C and the fourth electrode 10D may each have the same configuration as the inner electrode 11 of the first embodiment. However, the third electrode 10C is disposed between the first insulating layer 13A and the third insulating layer 13C, and the fourth electrode 10D is disposed between the second insulating layer 13B and the third insulating layer 13C. Yes.
- the via conductor 12 passes through the third insulating layer 13C and connects the third electrode 10C and the fourth electrode 10D.
- the number, arrangement position, planar shape, cross-sectional shape, and dimensions of the via conductors 12 may be set as appropriate.
- the material of the via conductor 12 is the same as the material of the layered electrodes (9A, 9B, 10C, and 10D), for example.
- FIG. 4 is a schematic cross-sectional view for explaining a method for manufacturing the ion wind generator 103.
- the ion wind generator 103 is manufactured by laminating the insulating layer 13 in which various electrodes are arranged, like the ion wind generator 3 of the first embodiment.
- a method of laminating and firing ceramic green sheets coated with a conductive paste may be applied, as in the first embodiment.
- the conductive paste that becomes the third electrode 10C is applied to the third main surface 13c of the ceramic green sheet that becomes the first insulating layer 13A. That is, the conductive paste that becomes the third electrode 10C is applied to the ceramic green sheet to which the conductive paste that becomes the first electrode 9A is applied.
- the conductive paste that becomes the fourth electrode 10D is applied to the fourth main surface 13d of the ceramic green sheet that becomes the second insulating layer 13B. That is, the conductive paste that becomes the fourth electrode 10D is applied to the ceramic green sheet to which the conductive paste that becomes the second electrode 9B is applied.
- the conductive paste that becomes the via conductor 12 is filled in the via 13v formed in the ceramic green sheet that becomes the third insulating layer 13C.
- a known technique may be used as a method for forming the via 13v and a method for filling the conductive paste.
- the inner electrode 11 composed of the third electrode 10C, the fourth electrode 10D, and the via conductor 12 is formed.
- the same operations and effects as those of the first embodiment can be obtained. That is, by applying a voltage between the inner electrode 11 and the first electrode 9A, an ion wind along the first main surface 7a can be generated as shown by an arrow y1 in FIG. By applying a voltage between the first electrode 9B and the second electrode 9B, an ion wind along the second main surface 7b can be generated as shown by an arrow y2 in FIG. As a result, ion wind can be suitably generated on both surfaces of the dielectric 7, and simplification and downsizing of the configuration by sharing the inner electrode 11 can be achieved.
- the dielectric 107 has a first insulating layer 13A constituting the first main surface 7a and a second insulating layer 13B constituting the second main surface 7b.
- the first electrode 9A is provided on the first insulating layer 13A
- the second electrode 9B is provided on the second insulating layer 13B.
- the inner electrode 11 includes a third electrode 10C provided closer to the second insulating layer 13B than the first electrode 9A in the first insulating layer 13A, and a first insulating layer than the second electrode 9B in the second insulating layer 13B. It has the 4th electrode 10D provided in the layer 13A side, and the via conductor 12 which connects the 3rd electrode 10C and the 4th electrode 10D.
- the distance between the first electrode 9A and the inner electrode 11 is defined by the distance between the first electrode 9A and the third electrode 10C.
- the distance between the second electrode 9B and the inner electrode 11 is defined by the distance between the second electrode 9B and the fourth electrode 10D.
- the two outer electrodes 9 are different from each other in the portion of the inner electrode 11 that serves as a reference for the distance from the inner electrode 11. As a result, for example, it is facilitated to individually adjust the wind speed of the ion wind between the first main surface 7a side and the second main surface 7b side.
- the ion wind generator 3 of the first embodiment when the distance between each outer electrode 9 and the inner electrode 11 is decreased in order to increase the wind speed of the ion wind, that is, when the two insulating layers 13 are thinned, The thickness of the dielectric 7 as a whole is also reduced, and the mechanical strength of the ion wind generator 3 is reduced.
- the ion wind generator 103 of the present embodiment even if the first insulating layer 13A and the second insulating layer 13B are thinned, it is possible to ensure the thickness of the dielectric 107 as a whole.
- the displacement when the three insulating layers 13 are overlapped does not affect the distance between the first electrode 9A and the inner electrode 11 and the distance between the second electrode 9B and the inner electrode 11. That is, it is possible to suppress the influence of errors in the stacking process on the wind speed of the ion wind.
- the dielectric 107 is a substrate configured by laminating a plurality of flat plate-like (three in this embodiment) insulating layers 13, and the first main surface 7 a and the second main surface 7 b are formed of the plurality of insulating layers 13. It is both surfaces of the board
- the plurality of insulating layers 13 includes a first insulating layer 13A having a first main surface 7a and a third main surface 13c on the back surface thereof, and a second insulating layer having a second main surface 7b and a fourth main surface 13d on the back surface thereof. 13B and a third insulating layer 13C interposed between the third main surface 13c and the fourth main surface 13d.
- the first electrode 9A is a layered electrode stacked on the first main surface 7a
- the second electrode 9B is a layered electrode stacked on the second main surface 7b
- the third electrode 10C is stacked on the third main surface 13c
- the fourth electrode 10D is a layered electrode laminated on the fourth major surface 13d.
- the via conductor 12 that connects the third electrode 10C and the fourth electrode 10D is a conductor that penetrates the third insulating layer 13C.
- the ion wind generator 103 has the same configuration as that of the multilayer wiring board, and various technologies related to the multilayer wiring board can be used.
- the dielectric 7 is made of ceramic, the ion wind generator 103 having excellent mechanical strength, thermal strength, and electrical characteristics can be realized by using the technology of the ceramic multilayer substrate. .
- the first electrode 9A and the second electrode 9B have the same distance from the inner electrode 11 (the distance between the first electrode 9A and the first downstream region, and the distance between the second electrode 9B and the second downstream region). The distance is the same.) In this case, the effect of suppressing the error due to the positional deviation at the time of stacking described above works effectively.
- the first main surface 7a and the second main surface 7b have the same wind speed, higher accuracy is required to suppress the occurrence of unintended fluid phenomena than when the first main surface 7a and the second main surface 7b have different wind speeds. This is because it is considered that there are many cases.
- the first insulating layer 13A and the second insulating layer 13B are examples of the first partial dielectric and the second partial dielectric of the present invention
- the via conductor 12 is the connection of the present invention. It is an example of a conductor.
- FIG.5 (a) is a perspective view which shows typically the principal part of the ion wind generator 201 which concerns on the 3rd Embodiment of this invention.
- FIG. 5B is a front view of the ion wind generator 203 of the ion wind generator 201 as viewed in the x-axis direction.
- the ion wind generator 201 is different from the first embodiment in the configuration of the ion wind generator 203. Specifically, it is as follows.
- the dielectric 207 is generally formed in a cylindrical shape.
- the inner electrode 211 is formed in an axial shape extending along the center line of the dielectric 207.
- the outer electrode 209 is formed in a cylindrical shape surrounding the outer peripheral surface of the dielectric 207.
- the inner electrode 211 includes a downstream region (the entire inner electrode 211 in the present embodiment) located on one side of the dielectric 207 in the axial direction with respect to the outer electrode 209.
- the cross-sectional view of the ion wind generator 203 cut in parallel to the xz plane is the same as FIG. 1B except that the dielectric 207 is not composed of the two insulating layers 13.
- the dielectric 207 is not composed of the two insulating layers 13.
- the dielectric 207 can be regarded as having a plurality of curved surfaces 207a to 207d facing in different directions. That is, the dielectric 207 has a curved surface 207a and a curved surface 207b on the back surface thereof, and a curved surface 207c and a curved surface 207d facing the sides of these curved surfaces.
- the outer electrode 209 has partial electrodes 209a to 209d provided on the curved surfaces 207a to 207d, respectively.
- the dielectric 207 can be regarded as having two curved surfaces (semi-cylindrical surfaces) facing in opposite directions.
- the outer electrode 209 can also be regarded as having two partial electrodes respectively provided on the two curved surfaces.
- the same operations and effects as in the first embodiment can be obtained. That is, by applying a voltage between the inner electrode 211 and the outer electrode 209, as shown by arrows y1 and y2 in FIG. 5A, the ion wind is preferably applied to the curved surfaces 207a to 207d facing in different directions.
- the configuration can be simplified and miniaturized by sharing the inner electrode 11.
- the ion wind generator 203 includes partial electrodes 209 a to 209 d and has an annular outer electrode 209 formed so as to surround the outer periphery of the dielectric 207. Therefore, the ion wind generator 203 can generate the ion wind over the entire circumference of the dielectric 207 around the predetermined axis. As a result, for example, it is expected that a large air volume ion wind is realized with a small configuration.
- any two of the curved surfaces 207a to 207d are examples of the first surface and the second surface of the present invention, and any two of the partial electrodes 209a to 209d are the first surface of the present invention. It is an example of an electrode and a 2nd electrode.
- FIG. 6 is a cross-sectional view schematically showing the main part of an ion wind generator 301 according to the fourth embodiment of the present invention.
- the ion wind generator 3 is configured such that the distance between the first electrode 9A and the inner electrode 11 and the distance between the second electrode 9B and the inner electrode 11 are equal.
- the ion wind generators 303 are configured so that they are different from each other.
- the difference in the distance is realized by a difference in the distance in the thickness direction (z). More specifically, for example, the number of insulating layers 13 interposed between the first electrode 309A and the inner electrode 11 and the number of insulating layers 13 interposed between the second electrode 309B and the inner electrode 11 are determined. This is realized by making them different from each other. In addition, the thickness of the some insulating layer 13 is mutually the same, for example. Of course, the difference in the distance in the thickness direction can also be realized by changing the thickness of the insulating layer 13 in the case where the dielectric is constituted by the two insulating layers 13 as in the first embodiment. .
- the difference in the distance is realized by the difference in the distance in the flow direction (x direction). More specifically, for example, it is realized by making the positions of the two outer electrodes 309 different from each other by a predetermined distance d. In FIG. 6, the sizes of the two outer electrodes 309 in the x direction are different from each other, but the sizes may be the same.
- the distance between the first electrode 309A and the inner electrode 11 and the distance between the second electrode 309B and the inner electrode 11 are made different from each other, so that each of the first principal surface 7a and the second principal surface 7b is generated. It is easy to vary the ion wind. For example, even if two outer electrodes are connected in parallel, the respective wind speeds of the first main surface 7a and the second main surface 7b can be set to arbitrary wind speeds.
- FIG. 7 is sectional drawing which shows typically the principal part of the ion wind generator 401 which concerns on the 5th Embodiment of this invention.
- the first electrode 9A and the second electrode 9B are displaced in the same direction along the first main surface 7a and the second main surface 7b with respect to the inner electrode 11 (relative to the first electrode 9A).
- the direction in which the first downstream region of the inner electrode is positioned (first direction) and the direction in which the second downstream region of the inner electrode is positioned relative to the second electrode 9B (second direction) were the same direction.
- the first electrode 9A and the second electrode 9B are displaced in different directions along the first main surface 7a and the second main surface 7b with respect to the inner electrode 11 (first The direction and the second direction are different from each other.)
- the first electrode 9 ⁇ / b> A and the second electrode 9 ⁇ / b> B are displaced in the opposite directions in the x direction with respect to the inner electrode 11 (the first direction and the second direction are opposite directions).
- the ion wind generator 403 as indicated by the arrows y1 and y3, the ion wind flows in different directions (in the opposite direction in the present embodiment) between the first main surface 7a and the second main surface 7b.
- the flow direction of the ion wind along different surfaces can be appropriately set according to the use of the ion wind generator.
- FIG. 8 is a cross-sectional view schematically showing a main part of an application example of the ion wind generator 1 according to the first embodiment of the present invention.
- FIG. 8 illustrates the case where the ion wind generator 1 is used in a reaction apparatus that reforms a fluid such as exhaust gas.
- a plurality of ion wind generators 3 are arranged at predetermined intervals in the width direction of the flow path. Each ion wind generator 3 is arranged so that the flow direction of the ion wind is along the flow path.
- the plurality of ion wind generators 3 perform fluid reforming on both the first main surface 7a and the second main surface 7b, and the ion wind And the modified fluid is delivered.
- the present invention is not limited to the above embodiment, and may be implemented in various modes.
- the ion wind generator and ion wind generator of the present invention can be used in various fields.
- the present invention may be used for suppressing separation of a boundary layer in a blade, or may be used for forming a flow in a minute space (for example, forming cooling air for a small electronic device).
- the first surface and the second surface of the dielectric facing in different directions are not limited to planes facing in opposite directions.
- the first surface and the second surface may be surfaces that face in directions orthogonal to each other, or surfaces that face in directions inclined with respect to each other.
- the shape of the dielectric is not limited to a thin rectangular parallelepiped or a cylindrical shape, and may be an appropriate shape.
- the dielectric is not limited to one formed by stacking insulating layers.
- the dielectric material may be formed by filling a metal material serving as an electrode with a material material serving as a dielectric material.
- the dielectric is not limited to one obtained by stacking and firing ceramic green sheets.
- the dielectric may be one in which an insulating layer is laminated by ceramic spraying, or may be one in which an uncured thermosetting resin is laminated and heated and pressurized.
- the shape and number of the first electrode, the second electrode (outer electrode), and the inner electrode may be set as appropriate.
- one of the outer electrode and the inner electrode has a triangular shape or a wavy shape, and the distance between the outer electrode and the inner electrode in the x direction varies depending on the position in the width direction of the ion wind. Also good.
- one of the outer electrode and the inner electrode may be divided into a plurality in the width direction of the ion wind, and the voltage may be controlled for each of the divided electrodes.
- the inner electrode is not limited to the layered electrode, and the first electrode and the second electrode (outer electrode) are also layered electrodes. It is not limited to.
- the first electrode and the second electrode may be axial electrodes extending in the y direction.
- the first electrode and the second electrode (outer electrode) may be disposed on the surface side of the dielectric with respect to the inner electrode, and need not be exposed on the surface of the dielectric. Further, when the outer electrode is exposed on the surface of the dielectric, the outer electrode is not limited to the one disposed on the surface of the dielectric. For example, the outer electrode may be fitted into a recess formed in the dielectric, and only a part of the outer electrode may be exposed from the dielectric. The first electrode and the second electrode (outer electrode) may be fixed to a member separate from the dielectric and separated from the dielectric.
- the displacement direction of the first electrode and the second electrode with respect to the inner electrode is not limited to the same direction and the reverse direction, but is a direction orthogonal to each other or a direction inclined with respect to each other. Also good.
- the first downstream area or the second downstream area is not limited to the entire inner electrode, and may be a part of the inner electrode.
- the first downstream region and the second downstream region may be in a range that does not overlap each other in the inner electrode, or may be in different ranges in which some overlap.
- the first electrode and the second electrode are not limited to those connected in parallel.
- the first electrode and the second electrode may be connected in series.
- the voltages of the first electrode and the second electrode are individually controlled. May be.
- the dielectric having the first and second partial dielectrics (13A and 13B in the embodiment) exemplified in the second embodiment (FIG. 3) is not limited to one made of a flat insulating layer.
- the first partial dielectric and the second partial dielectric may be fixed to each other by an appropriate fixing member such as solder in a state of being opposed to each other with an appropriate spacer.
- connection conductor via conductor 12 in the embodiment
- connection conductor that connects the third and fourth electrodes provided in the first and second partial dielectrics is not limited to the via conductor.
- a conductor may be disposed on the side of the third insulating layer 13C to form a connection conductor.
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Abstract
Description
図1(a)は本発明の第1の実施形態に係るイオン風発生装置1を模式的に示す斜視図であり、図1(b)は図1(a)のIb-Ib線における断面図である。
図3は、本発明の第2の実施形態に係るイオン風発生装置101の要部を模式的に示す断面図である。
図5(a)は、本発明の第3の実施形態に係るイオン風発生装置201の要部を模式的に示す斜視図である。図5(b)はイオン風発生装置201のイオン風発生体203をx軸方向に見た正面図である。
図6は、本発明の第4の実施形態に係るイオン風発生装置301の要部を模式的に示す断面図である。
図7は、本発明の第5の実施形態に係るイオン風発生装置401の要部を模式的に示す断面図である。
図8は、本発明の第1の実施形態に係るイオン風発生装置1の利用例の要部を模式的に示す断面図である。
Claims (12)
- 互いに異なる方向に面する第1面及び第2面を有する誘電体と、
前記誘電体内に配置された内側電極と、
前記内側電極に対して前記第1面側に配置された第1電極と、
前記内側電極に対して前記第2面側に配置された第2電極と、
を有し、
前記内側電極は、前記第1電極に対して前記第1面に沿う第1方向に位置する第1下流域部を有し、前記第1電極との間に電圧が印加されることにより前記第1面に沿うイオン風を誘起可能であるとともに、前記第2電極に対して前記第2面に沿う第2方向に位置する第2下流域部を有し、前記第2電極との間に電圧が印加されることにより前記第2面に沿うイオン風を誘起可能である
イオン風発生体。 - 前記第1面及び前記第2面は互いに反対方向に面する
請求項1に記載のイオン風発生体。 - 前記第1方向及び前記第2方向は同一方向である
請求項2に記載のイオン風発生体。 - 前記誘電体は、平板状の複数の絶縁層が積層されて構成された基板であり、
前記第1面及び前記第2面は前記複数の絶縁層の積層方向に面する前記基板の両主面であり、
前記第1電極は前記第1面に積層された層状電極であり、
前記第2電極は前記第2面に積層された層状電極であり、
前記内側電極は前記複数の絶縁層間のいずれかに配置された層状電極である
請求項2又は3に記載のイオン風発生体。 - 前記誘電体は、
前記第1面を構成する第1部分誘電体と、
前記第2面を構成する第2部分誘電体と、
を有し、
前記第1電極は前記第1部分誘電体に設けられ、
前記第2電極は前記第2部分誘電体に設けられ、
前記内側電極は、
前記第1部分誘電体の、前記第1電極よりも前記第2部分誘電体側に設けられた第3電極と、
前記第2部分誘電体の、前記第2電極よりも前記第1部分誘電体側に設けられた第4電極と、
前記第3電極と前記第4電極とを接続する接続導体と、
を有する
請求項2又は3に記載のイオン風発生体。 - 前記誘電体は、平板状の複数の絶縁層が積層されて構成された基板であり、
前記第1面及び前記第2面は前記複数の絶縁層の積層方向に面する前記基板の両主面であり、
前記複数の絶縁層は、
前記第1面及びその背面の第3面を有する、前記第1部分誘電体としての第1絶縁層と、
前記第2面及びその背面の第4面を有する、前記第2部分誘電体としての第2絶縁層と、
前記第3面及び前記第4面との間に介在する第3絶縁層と、
を有し、
前記第1電極は前記第1面に積層された層状電極であり、
前記第2電極は前記第2面に積層された層状電極であり、
前記第3電極は前記第3面に積層された層状電極であり、
前記第4電極は前記第4面に積層された層状電極であり、
前記接続導体は前記第3絶縁層を貫通するビア導体である
請求項5に記載のイオン風発生体。 - 前記第1電極及び前記第2電極を含み、前記誘電体の外周を囲むように形成された環状電極を有する
請求項1~3のいずれか1項に記載のイオン風発生体。 - 前記誘電体は、セラミックにより構成されている
請求項1~7のいずれか1項に記載のイオン風発生体。 - 前記第1電極と前記第1下流域部との距離と、前記第2電極と前記第2下流域部との距離とが互いに同一である
請求項1~8のいずれか1項に記載のイオン風発生体。 - 前記第1電極と前記第1下流域部との距離と、前記第2電極と前記第2下流域部との距離とが互いに異なる
請求項1~8のいずれか1項に記載のイオン風発生体。 - 互いに異なる方向に面する第1面及び第2面を有する誘電体と、
前記誘電体内に配置された内側電極と、
前記内側電極に対して前記第1面側に配置された第1電極と、
前記内側電極に対して前記第2面側に配置された第2電極と、
前記内側電極と前記第1電極との間に電圧を印加するとともに、前記内側電極と前記第2電極との間に電圧を印加する電源と、
を有し、
前記内側電極は、前記第1電極に対して前記第1面に沿う第1方向に位置する第1下流域部を有し、前記第1電極との間に電圧が印加されることにより前記第1面に沿うイオン風を誘起可能であるとともに、前記第2電極に対して前記第2面に沿う第2方向に位置する第2下流域部を有し、前記第2電極との間に電圧が印加されることにより前記第2面に沿うイオン風を誘起可能である
イオン風発生装置。 - 前記第1電極及び前記第2電極は、前記誘電体の外部へ露出しており、
前記電源は、前記第1電極及び前記第2電極に基準電位を付与するとともに、前記内側電極に基準電位に対して変動する電位を付与する
請求項11に記載のイオン風発生装置。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
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US13/805,627 US9036325B2 (en) | 2010-08-18 | 2011-08-18 | Ion wind generator and ion wind generating device |
CN201180030537.7A CN102959813B (zh) | 2010-08-18 | 2011-08-18 | 离子风发生体及离子风发生装置 |
EP11818227.8A EP2608329A4 (en) | 2010-08-18 | 2011-08-18 | ION WIND GENERATING BODY AND ION WIND GENERATING DEVICE |
JP2012529613A JP5491632B2 (ja) | 2010-08-18 | 2011-08-18 | イオン風発生体及びイオン風発生装置 |
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DE102011009780A1 (de) * | 2011-01-28 | 2012-08-02 | Continental Automotive Gmbh | Sensorelement und Verfahren zum Erfassen eines Parameters eines Gasgemischs in einem Gasraum |
DE102016118569A1 (de) * | 2016-09-30 | 2018-04-05 | Cinogy Gmbh | Elektrodenanordnung zur Ausbildung einer dielektrisch behinderten Plasmaentladung |
WO2019077771A1 (ja) * | 2017-10-20 | 2019-04-25 | シャープ株式会社 | 放電装置 |
CN113891542A (zh) * | 2021-11-09 | 2022-01-04 | 上海众英创科技有限公司 | 正负离子浆发生器 |
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