JP5458750B2 - Blower - Google Patents

Description

  The present invention relates generally to an air blower, and more particularly to an air blower that generates ionic wind.

  Conventionally, this type of blower is known in which a high voltage is applied between an electrode such as a needle and a wire mesh facing the electrode (see, for example, Patent Document 1).

  Hereinafter, the air blowing principle will be described with reference to FIG.

  As shown in FIG. 21, a wire mesh 102 is provided at the end of the air duct 101, and a needle electrode 103 is disposed inside the air duct 101. When a DC or AC high voltage generated from the high voltage power source 104 is applied between the wire mesh 102 and the needle electrode 103, an ion wind blows from the tip of the needle electrode 103 toward the wire mesh 102. An ion wind is an air flow excited by the migration of ions generated by discharge. This ion wind can pass through the wire mesh 102 and blow in the direction indicated by the large arrow. It is possible to blow air without relying on a conventional air blowing method using a rotary blade attached to the electric motor. The air blowing method using ion wind is characterized in that there are no mechanically movable parts.

  In addition, there is a blower that does not use a wire mesh or a needle electrode (for example, see Patent Document 2).

  Hereinafter, the principle will be described with reference to FIG.

  As shown in FIG. 22, a plurality of metal flat ground plates 105 are arranged in parallel, and an electrode plate 106 having a protrusion on one end of the metal plate is provided at a position away from these ground plates 105. Has been placed. When a high DC voltage generated from a high voltage power source (not shown) is applied between the ground plate 105 and the electrode plate 106, an ion wind blows from the tip of the electrode plate 106 toward the ground plate 105. The ion wind passes between the ground plates 105 and can be blown in the direction indicated by the arrow. It is possible to blow air without using a rotating blade attached to the electric motor.

  In addition, this type of blower includes a discharge wire that is a thin metal wire instead of an electrode plate provided with protrusions (see, for example, Patent Document 3).

JP 2009-28590 A (FIGS. 1 and 11) Japanese Patent Laying-Open No. 2009-74766 (FIG. 18) Japanese Unexamined Patent Publication No. 2009-19815 (FIG. 5)

  In such a conventional blower, the ionic wind emitted from the needle electrode flows through the wire mesh perpendicular to the wind direction, so that the wind speed of the ionic wind generated by the needle electrode is the angle of the wire mesh. It is weakened by draft resistance. In other words, there is a problem that power consumption efficiency for blowing air is poor.

  In addition, since the electrode plate is disposed at a position away from the space formed by the assembly of ground plates, there is a problem that the outer shape of the entire blower including the electrode plate and the ground plate is large. That is, it has a problem of lacking compactness.

  In addition, increasing the air flow rate of the blower is synonymous with increasing the wind speed, but in order to increase the wind speed of the blower, it is necessary to increase the absolute number of protrusions that are the source of ion wind. . When a new electrode plate is additionally disposed between the electrode plate and the ground plate, a discharge is generated between the new electrode plate and the ground plate, and an ion wind is generated. At this time, since the distance between the new electrode plate and the ground plate is shorter than the conventional distance, it is necessary to reduce the applied voltage value of the high voltage. However, when such a change in applied voltage is performed, the ion wind is hardly generated from the electrode plate at a distant position that originally existed. This is because a voltage sufficient to generate ion wind is not applied to the electrode plate. Therefore, there is a problem that it is difficult to increase the wind speed of the blower.

  Moreover, since there is no idea of arranging as many projections on the electrode plate as possible in the space formed by the assembly of ground plates, there is a problem that it is difficult to increase the wind speed of the blower.

  SUMMARY OF THE INVENTION The present invention solves the above-described conventional problems, and an object of the present invention is to provide a blower having a structure having a large number of protrusions in a space of a parallel plate assembly having low ventilation resistance.

  In order to achieve this object, the present invention includes a flat main electrode plate provided with a plurality of protrusions with sharp tips (hereinafter referred to as main electrode protrusions) and a plurality of protrusions with sharp tips (hereinafter referred to as “main electrode protrusions”). Are arranged alternately in parallel with each other, the main electrode protrusions and the sub electrode protrusions are oriented in the same direction, and the sub electrode plate further includes the main electrode protrusions. In the same manner, the main electrode plate is provided with the electrode plate portion further forward than the tip of the sub-electrode projection, and a high voltage is applied between the main electrode plate and the sub-electrode plate. Thus, the blower is configured to generate ion wind in the direction in which the tips of the main electrode protrusion and the sub electrode protrusion are directed, thereby achieving the intended purpose.

  According to the present invention, a flat main electrode plate provided with a plurality of protrusions (main electrode protrusions) having sharp tips, and a flat sub electrode plate provided with a plurality of protrusions (sub electrode protrusions) similarly having sharp tips. And the main electrode protrusion and the sub electrode protrusion are both oriented in the same direction, and the sub electrode plate is provided with an electrode plate portion to the front of the front end of the main electrode protrusion, Similarly, the main electrode plate is provided with an electrode plate part ahead of the tip of the sub electrode projection, and a high voltage is applied between the main electrode plate and the sub electrode plate, so that the main electrode projection, the sub electrode projection By using the air blower that generates the ion wind in the direction in which the tip of the air pipe is directed, it is possible to obtain an effect that the ventilation resistance is small, the air flow resistance is small, and the processing air volume is large.

Outline Drawing of Main Electrode Plate and Sub Electrode Plate of Embodiment 1 of the Present Invention Structure diagram of Embodiment 1 of the present invention Conceptual diagram of ion wind according to Embodiment 1 of the present invention Conceptual diagram of ion wind according to Embodiment 1 of the present invention Structure diagram of Embodiment 2 of the present invention Conceptual diagram of ion wind according to Embodiment 2 of the present invention Structure diagram of Embodiment 3 of the present invention Conceptual diagram of ion wind according to Embodiment 3 of the present invention Structure diagram of Embodiment 4 of the present invention Conceptual diagram of ion wind according to Embodiment 4 of the present invention Structure diagram of Embodiment 5 of the present invention Conceptual diagram of ion wind according to Embodiment 5 of the present invention Structure diagram of Embodiment 6 of the present invention Conceptual diagram of ion wind according to Embodiment 6 of the present invention Structure diagram of Embodiment 7 of the present invention Conceptual diagram of ion wind according to Embodiment 7 of the present invention Structural diagram of Embodiment 8 of the present invention Conceptual diagram of ion wind according to Embodiment 8 of the present invention Structural diagram of Embodiment 9 of the present invention Conceptual diagram of ion wind according to Embodiment 9 of the present invention Principle diagram of ion wind generation of conventional blower Principle of ion wind generation

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

(Embodiment 1)
In FIG. 1, a main electrode plate 1 in which a plurality of protrusions (main electrode protrusions 1 a) having a pointed tip are oriented in a certain direction and arranged on the inner surface of a flat plate, and an inner protrusion (sub-electrode protrusion 2 a) are main. A sub-electrode plate 2 provided at a position different from the electrode plate 1 is shown. There is no significant meaning in the difference in the naming method of “main” and “sub” between the main electrode plate 1 and the sub electrode plate 2. It is only necessary that the shapes of the main electrode plate 1 and the sub electrode plate 2 are different from each other. Even if the shapes of the main electrode plate 1 and the sub electrode plate 2 shown in FIG. , Essential differences do not occur.

  In FIG. 2, the main electrode plates 1 and the sub electrode plates 2 are arranged alternately and in parallel. The main electrode plate 1 and the sub electrode plate 2 have the same direction of protrusions (main electrode protrusion 1a and sub electrode protrusion 2a). A state in which a high voltage is applied between the main electrode plate 1 and the sub electrode plate 2 by the high voltage power source 3 is shown. The sub-electrode plate 2 is grounded and is a circuit in which a high voltage is applied to the main electrode plate 1. The output voltage of the high-voltage power supply 3 is a positive DC high voltage. The arrows in the figure indicate the direction in which the wind induced by the ion wind in the electrode plate flows.

  FIG. 3 is a view of the main electrode plate 1 and the sub electrode plate 2 of FIG. 2 as viewed from above. The description of the high-voltage power supply 3 and its wiring is omitted. The double circle symbols in the figure indicate the tip positions of the protrusions (main electrode protrusion 1a, sub electrode protrusion 2a). The broken arrow indicates the ion wind generated from the tip of the protrusion. Since a positive DC high voltage is applied to the main electrode plate 1, an ion wind is generated from the tip of the main electrode protrusion 1a due to a positive voltage discharge. On the other hand, when the main electrode plate 1 is used as a potential reference, a negative voltage is relatively applied to the tip of the sub-electrode projection 2a. Arise. What is important here is that a single high-voltage power source 3 can be used to simultaneously generate a positive discharge ion wind and a negative discharge ion wind, and to make the ion directions of both discharges the same direction. It is. The same effect can be obtained by applying a negative DC high voltage to the main electrode plate 1. Further, the same effect can be obtained by applying an alternating high voltage to the main electrode plate 1. That is, it includes the feature that it is not affected by the type of high-voltage power supply. Another important point here is that if the positions of the main electrode protrusion 1a and the sub-electrode protrusion 2a are the same, the distance between the positive discharge protrusion and the negative discharge protrusion is closest. Therefore, the dielectric strength of the space is reduced, and a sufficiently high voltage cannot be applied. That is, in such a case, since a sufficient ion wind cannot be obtained, it is important not to make the positions of the main electrode protrusion 1a and the sub electrode protrusion 2a the same.

  FIG. 4 shows a case where the number of main electrode plates 1 and sub electrode plates 2 is increased, but the wind direction of the ion wind is no different from that in FIG. What is important here is that the number of electrode plates can be freely increased or decreased. That is, it means that the discharge cross-sectional area of the ion wind can be changed freely. Since the ion wind is generated from each protrusion without change, almost the same wind speed can be obtained at any position of the discharge cross section, that is, a blower that discharges a wind with a uniform wind speed distribution from the discharge cross section of any size and shape. Can be realized. This is because it cannot be easily realized with a blower in which a rotating blade is simply provided in an electric motor.

  Hereinafter, the present embodiment will be described in more detail.

  The material of the main electrode plate 1 and the sub electrode plate 2 is SUS304, the size is 100 mm × 124 mm, and the plate thickness is 0.4 mm. Each row with protrusions has seven protrusions. The tip angle of the main electrode protrusion 1a and the sub electrode protrusion 2a is 30 degrees, the protruding height of the protrusion is 10 mm, and the interval between adjacent protrusions is 12 mm.

  A plurality of each of the main electrode plate 1 and the sub electrode plate 2 are arranged in the center of a wind speed measuring duct (material is acrylic) having a total length of 500 mm and an inner dimension of a cross section of 121 mm × 126 mm. The intervals (electrode plate intervals) between the adjacent main electrode plate 1 and sub electrode plate 2 were 5 mm, 10 mm, 15 mm, 20 mm, and 30 mm. A positive DC high voltage was applied between the main electrode plate 1 (voltage application side) and the sub electrode plate 2 (ground side), and the wind speed was measured. On the suction inlet surface of the duct, the average wind speed at four central points of the equal surface divided into four was used as the wind speed of the ion wind. As an anemometer, a hot-wire anemometer Climmaster MODEL6531 manufactured by Nippon Kanomax Co., Ltd. was used. The results are shown in Tables 1 and 2.

  Table 1 is a table showing changes in wind speed when the applied voltage is changed when the electrode plate interval is 15 mm. It can be seen that the wind speed increases as the applied voltage increases. When the applied voltage was set to +15 kV, a flash discharge frequently occurred between the main electrode plate and the sub-electrode plate, so that the voltage could not be correctly applied. Therefore, the applied voltage +14 kV is the maximum applied voltage, and the wind speed 0.87 m / s at this time is the maximum wind speed.

  Table 2 is a table showing the wind speed when the maximum applied voltage is applied when the electrode plate interval is changed. This is a result of applying both positive and negative voltages. In any case, a wind speed of 0.5 m / s or more is obtained, and when the electrode plate interval is in the range of 10 mm to 20 mm, a wind speed of 0.8 m / s or more is stably obtained.

  If the electrode plate interval is set to less than 5 mm, both the processing accuracy of the electrode plates and the placement accuracy of the electrode plates must be manufactured with high accuracy. The reason is that, due to variations in the electrode plate interval, sparks frequently occur in the portion where the electrode plate interval is the shortest, and it becomes difficult to apply voltage. Therefore, an electrode plate interval of less than 5 mm is not preferable from the viewpoint of ease of manufacture.

  When the electrode plate interval is set to exceed 30 mm, the maximum applied voltage exceeds 20 kV. There is no problem in theory if a high-voltage power supply capable of outputting such a high voltage is prepared. However, if the applied voltage is too high, it is necessary to increase the insulation strength of an insulating material such as an insulator for holding the electrode plate, resulting in high costs, and the high-voltage power supply itself is also expensive. Also, if a voltage that is too high is used, it means that the cost of the safety measure is required. Therefore, an electrode plate interval exceeding 30 mm is not preferable. In addition, in each figure which shows embodiment, insulation materials, such as an insulator, are not illustrated. This is because it is self-evident that an insulating material is necessary for a device using high voltage.

  Note that the output voltage of the high-voltage power supply 3 may be a negative DC high voltage or an AC high voltage.

  The main electrode plate 1 may be grounded and a high voltage may be applied to the sub electrode plate 2.

  The material of each electrode plate may be a metal other than SUS304 such as iron or aluminum, or may be a material such as a semiconductive resin.

  The size of the electrode plate may be arbitrary.

  In addition, although the plate | board thickness of an electrode plate may be arbitrary, from a viewpoint of the ease of manufacture, between 0.1 mm and 2 mm is preferable.

  The number of protrusions provided on the electrode plate need not be seven in each row.

  The tip angle of the projection of the electrode plate does not need to be 30 degrees, but is preferably between 15 degrees and 120 degrees from the viewpoint of ease of manufacture.

  The protruding height of the protrusion does not need to be 10 mm, but is preferably between 3 mm and 30 mm from the viewpoint of ease of manufacture.

  In addition, the space | interval of adjacent protrusion does not need to be 12 mm.

(Embodiment 2)
In FIG. 5, a plurality of protrusions 4 a having a pointed tip are directed in a certain direction, and electrode plates 4 arranged on the inner surface of the flat plate and ground plates 5 that are simply flat plates having no projection are arranged alternately and in parallel. Has been. Although a high voltage power source is not shown, it should be understood that a high voltage is applied between the electrode plate 4 and the ground plate 5 by the high voltage power source. The arrows in the figure indicate the direction in which the wind induced by the ion wind in the electrode plate flows. In the first embodiment, they are named “main electrode plate” and “sub electrode plate”, and in this embodiment, they are simply named “electrode plate”. In this embodiment, the words “main” and “sub” are not used, but there is no deep meaning. In any case, it should be understood that the plate having the protrusions is an electrode plate, a main electrode plate, and a sub-electrode plate.

  FIG. 6 is a view of the electrode plate 4 and the ground plate 5 of FIG. 5 as viewed from above. The double circle in the figure indicates the tip position of the protrusion 4a. A broken arrow indicates an ion wind generated from the tip of the protrusion 4a. Since a positive or negative DC high voltage is applied to the electrode plate 4, an ion wind is generated from the tip of the protrusion 4 a of the electrode plate 4 by a positive or negative voltage discharge. Furthermore, the same effect can be obtained by applying an alternating high voltage to the electrode plate 4.

  Hereinafter, the present embodiment will be described in more detail.

  Regarding the electrode plate 4 and the ground plate 5, their material, size, plate thickness, protrusion shape, and number of protrusions in one row are the same as in the first embodiment. Various conditions relating to wind speed measurement are the same as those in the first embodiment. Table 3 shows the measurement results of the wind speed.

  Table 3 shows the wind speed when the maximum applied voltage is applied when the electrode plate interval is changed. Both the case where the discharge of the protrusion is a positive discharge and the case of a negative discharge are shown. In either case, a wind speed of 0.5 m / s or more is obtained.

  In addition, the number of rows of the protrusions 4a of the electrode plate 4 may be any number.

  The output voltage of the high voltage power supply may be a positive DC high voltage or a negative DC high voltage. Alternatively, an alternating high voltage may be used.

  The electrode plate 4 may be grounded and a high voltage may be applied to the ground plate 5.

  The material of the electrode plate 4 and the ground plate 5 may be a metal other than SUS304 such as iron or aluminum, or may be a material such as a semiconductive resin.

  The size of the electrode plate 4 may be arbitrary.

  In addition, although the plate | board thickness of the electrode plate 4 may be arbitrary, from a viewpoint of the ease of manufacture, between 0.1 mm and 2 mm is preferable.

  The number of protrusions 4a provided on the electrode plate 4 need not be seven in each row.

  The tip angle of the protrusion 4a of the electrode plate 4 does not need to be 30 degrees, but is preferably between 15 degrees and 120 degrees from the viewpoint of ease of manufacture.

  The protruding height of the protrusion does not need to be 10 mm, but is preferably between 3 mm and 30 mm from the viewpoint of ease of manufacture.

  In addition, the space | interval of the adjacent protrusion 4a does not need to be 12 mm.

(Embodiment 3)
The description which overlaps with Embodiment 2 is omitted.

  In FIG. 7, a plurality of projections 4 a having a pointed tip are oriented in a certain direction, and electrode plates 4 arranged on the inner surface and end portions of the flat plate and ground plates 5 that are simply flat plates having no projection are alternately and They are arranged in parallel. A high voltage power supply is not shown. The arrows in the figure indicate the direction in which the wind induced by the ion wind in the electrode plate flows.

  FIG. 8 is a view from above. The double circle in the figure indicates the tip position of the protrusion 4a. Dashed arrows indicate ion wind. What is important here is that the position of the protrusion 4 a at the end of the electrode plate 4 is deeper (recessed) than the nearest end of the ground plate 5. With this positional relationship, the ion wind from the projection 4a at the end can also be effectively extracted.

  Hereinafter, the present embodiment will be described in more detail. Regarding the electrode plate 4 and the ground plate 5, their material, size, plate thickness, shape of the protrusion 4a, and the number of protrusions 4a in one row are the same as those in the first embodiment. Various conditions relating to wind speed measurement are the same as those in the first embodiment. Tables 4 and 5 show the measurement results of the wind speed.

  Table 4 shows the maximum application when the distance between the electrode plates is changed under the condition that the position of the protrusion 4a at the end of the electrode plate 4 is 15 mm deeper than the nearest end of the ground plate 5. It is a table | surface which shows the wind speed when a voltage is applied. Both the case where the discharge of the protrusion is a positive discharge and the case of a negative discharge are shown. In either case, a wind speed of 0.7 m / s or more is obtained.

  Table 5 shows the distance when the position of the protrusion 4a at the end of the electrode plate 4 is deeper than the nearest end of the ground plate 5 (the recess distance X [mm] of the end protrusion). The wind speed is recorded while changing. The wind speed was measured with a uniform electrode plate spacing of 15 mm. The high voltage applied to the electrode plate 4 is a constant negative value “−12 kV”.

  It can be seen that if the recess distance X of the end protrusion is 8 mm or more, a certain wind speed can be obtained.

  Note that the number of rows of the protrusions 4a of the electrode plate 4 is not limited.

  The output voltage of the high voltage power supply may be a positive DC high voltage or a negative DC high voltage. Alternatively, an alternating high voltage may be used.

  The electrode plate 4 may be grounded and a high voltage may be applied to the ground plate 5.

  The material of the electrode plate 4 and the ground plate 5 may be a metal other than SUS304 such as iron or aluminum, or may be a material such as a semiconductive resin.

  The size of the electrode plate 4 may be arbitrary.

  In addition, although the plate | board thickness of the electrode plate 4 may be arbitrary, from a viewpoint of the ease of manufacture, between 0.1 mm and 2 mm is preferable.

  The number of protrusions 4a provided on the electrode plate 4 need not be seven in each row.

  The tip angle of the protrusion 4a of the electrode plate 4 does not need to be 30 degrees, but is preferably between 15 degrees and 120 degrees from the viewpoint of ease of manufacture.

  The protruding height of the protrusion does not need to be 10 mm, but is preferably between 3 mm and 30 mm from the viewpoint of ease of manufacture.

  In addition, the space | interval of the adjacent protrusion 4a does not need to be 12 mm.

(Embodiment 4)
The description which overlaps with other embodiment is abbreviate | omitted.

  In FIG. 9, a plurality of projections (main electrode projections 1a) having a pointed tip are oriented in a certain direction, and the main electrode plate 1 and projections (sub-electrode projections 2a) disposed on the inner surface and end portions of the flat plate are flat plates. The sub-electrode plates 2 arranged on the inner surface of each other are arranged alternately and in parallel. A high voltage power supply is not shown. The arrows in the figure indicate the direction in which the wind induced by the ion wind in the electrode plate flows.

  FIG. 10 is a view from above. The double circle in the figure indicates the tip position of the main electrode protrusion 1a. Dashed arrows indicate ion wind.

  Hereinafter, the present embodiment will be described in more detail.

  About the main electrode plate 1 and the sub electrode plate 2, those materials, a magnitude | size, plate | board thickness, the shape of protrusion, and the number of protrusions in 1 row are the same as Embodiment 1. FIG. Various conditions relating to wind speed measurement are the same as those in the first embodiment. Table 6 shows the measurement results of the wind speed.

  Table 6 is a table showing the wind speed when the maximum applied voltage is applied when the electrode plate interval is changed. Both the case where the discharge of the protrusion is a positive discharge and the case of a negative discharge are shown. In either case, a high wind speed of 0.9 m / s or more is obtained.

  The number of protrusions on the electrode plate may be any number.

  The output voltage of the high voltage power supply may be a positive DC high voltage or a negative DC high voltage. Alternatively, an alternating high voltage may be used.

  The main electrode plate 1 may be grounded and a high voltage may be applied to the sub electrode plate 2.

  The material of the electrode plate may be a metal other than SUS304 such as iron or aluminum, or may be a material such as a semiconductive resin.

  The size of the electrode plate may be arbitrary.

  In addition, although the plate | board thickness of an electrode plate may be arbitrary, from a viewpoint of the ease of manufacture, between 0.1 mm and 2 mm is preferable.

  The number of protrusions provided on the electrode plate need not be seven in each row.

  The tip angle of the projection of the electrode plate does not need to be 30 degrees, but is preferably between 15 degrees and 120 degrees from the viewpoint of ease of manufacture.

  The protruding height of the protrusion does not need to be 10 mm, but is preferably between 3 mm and 30 mm from the viewpoint of ease of manufacture.

  In addition, the space | interval of adjacent protrusion does not need to be 12 mm.

(Embodiment 5)
In FIG. 11, a plurality of protrusions 4 a having a sharp tip are arranged at one end of the electrode plate 4, and the protrusions arranged on the inner surface are opposite to the protrusions at the end. The electrode plates 4 and the ground plates 5 are arranged alternately and in parallel. A high voltage power supply is not shown. The arrows in the figure indicate the direction in which the wind induced by the ion wind in the electrode plate 4 flows.

  FIG. 12 is a view of the electrode plate 4 and the ground plate 5 of FIG. 11 as viewed from above. The double circle in the figure indicates the tip position of the protrusion 4a. A broken arrow indicates an ion wind generated from the tip of the protrusion 4a. The ionic wind exiting from the protrusion 4a at the end and the ionic wind exiting from the protrusion 4a on the inner surface are opposite to each other, but the ionic wind at the end is stronger. The wind flows. At this time, the airflow stirring effect is generated between the electrode plate and the ground plate due to the opposite wind directions. In this embodiment, the air blowing efficiency is inferior due to the reverse ion wind. However, it is suitable for a blower device for blowing air while stirring the airflow. A positive or negative DC high voltage is applied to the electrode plate 4.

  Hereinafter, the present embodiment will be described in more detail.

  Regarding the electrode plate 4 and the ground plate 5, their material, size, plate thickness, protrusion shape, and number of protrusions in one row are the same as in the first embodiment. Various conditions relating to wind speed measurement are the same as those in the first embodiment. Table 3 shows the measurement results of the wind speed.

  Table 7 shows the wind speed when the maximum applied voltage is applied when the electrode plate interval is changed. The negative voltage has a higher wind speed than the positive voltage, and a wind speed of 0.6 m / s or more is obtained.

  In addition, the number of rows of the protrusions 4a of the electrode plate 4 may be any number.

  The output voltage of the high voltage power supply may be a positive DC high voltage or a negative DC high voltage. Alternatively, an alternating high voltage may be used.

  The electrode plate 4 may be grounded and a high voltage may be applied to the ground plate 5.

  The material of the electrode plate 4 and the ground plate 5 may be a metal other than SUS304 such as iron or aluminum, or may be a material such as a semiconductive resin.

  The size of the electrode plate 4 may be arbitrary.

  In addition, although the plate | board thickness of the electrode plate 4 may be arbitrary, from a viewpoint of the ease of manufacture, between 0.1 mm and 2 mm is preferable.

  The number of protrusions 4a provided on the electrode plate 4 need not be seven in each row.

  The tip angle of the protrusion 4a of the electrode plate 4 does not need to be 30 degrees, but is preferably between 15 degrees and 120 degrees from the viewpoint of ease of manufacture.

  The protruding height of the protrusion does not need to be 10 mm, but is preferably between 3 mm and 30 mm from the viewpoint of ease of manufacture.

  In addition, the space | interval of adjacent protrusion does not need to be 12 mm.

(Embodiment 6)
The description which overlaps with other embodiment is abbreviate | omitted.

  In FIG. 13, a plurality of projections (main electrode projections 1a) having a pointed tip are oriented in a certain direction and the main electrode plate 1 and projections (sub electrode projections 2a) arranged on the inner surface of the flat plate are end portions of the flat plate. Are arranged alternately and in parallel. A high voltage power supply is not shown. The arrows in the figure indicate the direction in which the wind induced by the ion wind in the electrode plate flows.

  FIG. 14 is a view from above. The double circles in the figure indicate the tip positions of the protrusions (main electrode protrusion 1a, sub electrode protrusion 2a). Dashed arrows indicate ion wind.

  It should be noted that any number of rows of electrode plate protrusions (main electrode protrusion 1a, sub-electrode protrusion 2a) may be used.

  The output voltage of the high voltage power supply may be a positive DC high voltage or a negative DC high voltage. Alternatively, an alternating high voltage may be used.

  The main electrode plate 1 may be grounded and a high voltage may be applied to the sub electrode plate 2.

  The material of the electrode plate may be a metal other than SUS304 such as iron or aluminum, or may be a material such as a semiconductive resin.

  The size of the electrode plate may be arbitrary.

  In addition, although the plate | board thickness of an electrode plate may be arbitrary, from a viewpoint of the ease of manufacture, between 0.1 mm and 2 mm is preferable.

  The number of protrusions provided on the electrode plate need not be seven in each row.

  The tip angle of the projection of the electrode plate does not need to be 30 degrees, but is preferably between 15 degrees and 120 degrees from the viewpoint of ease of manufacture.

  The protruding height of the protrusion does not need to be 10 mm, but is preferably between 3 mm and 30 mm from the viewpoint of ease of manufacture.

  In addition, the space | interval of adjacent protrusion does not need to be 12 mm.

(Embodiment 7)
The description which overlaps with other embodiment is abbreviate | omitted.

  In FIG. 15, the main electrode plate 1 in which a plurality of projections (main electrode projections 1a) having a pointed tip are oriented in a certain direction and are arranged on the inner surface of the flat plate are the end portions of the flat plate. The sub-electrode plates 2 arranged on the inner surface are arranged alternately and in parallel. A high voltage power supply is not shown. The arrows in the figure indicate the direction in which the wind induced by the ion wind in the electrode plate flows.

  FIG. 16 is a view from above. The double circles in the figure indicate the tip positions of the protrusions (main electrode protrusion 1a, sub electrode protrusion 2a). Dashed arrows indicate ion wind.

  It should be noted that any number of rows of electrode plate protrusions (main electrode protrusion 1a, sub-electrode protrusion 2a) may be used.

  The output voltage of the high voltage power supply may be a positive DC high voltage or a negative DC high voltage. Alternatively, an alternating high voltage may be used.

  The main electrode plate 1 may be grounded and a high voltage may be applied to the sub electrode plate 2.

  The material of the electrode plate may be a metal other than SUS304 such as iron or aluminum, or may be a material such as a semiconductive resin.

  The size of the electrode plate may be arbitrary.

  In addition, although the plate | board thickness of an electrode plate may be arbitrary, from a viewpoint of the ease of manufacture, between 0.1 mm and 2 mm is preferable.

  The number of protrusions provided on the electrode plate need not be seven in each row.

  The tip angle of the projection of the electrode plate does not need to be 30 degrees, but is preferably between 15 degrees and 120 degrees from the viewpoint of ease of manufacture.

  The protruding height of the protrusion does not need to be 10 mm, but is preferably between 3 mm and 30 mm from the viewpoint of ease of manufacture.

  In addition, the space | interval of adjacent protrusion does not need to be 12 mm.

(Embodiment 8)
The description which overlaps with other embodiment is abbreviate | omitted.

  FIG. 17 shows that the main electrode plate 1 from which the projections with sharp tips are removed from the inner surface of the flat plate and the sub electrode plates 2 in which the projections (sub electrode projections 2a) are arranged at the ends of the flat plate are arranged alternately and in parallel. Yes. A high voltage power supply is not shown. The arrows in the figure indicate the direction in which the wind induced by the ion wind in the electrode plate flows.

  FIG. 18 is a view from above. The double circle in the figure indicates the tip position of the protrusion (sub-electrode protrusion 2a). Dashed arrows indicate ion wind.

  In addition, the number of rows of the electrode plate protrusions (sub-electrode protrusions 2a) is not limited.

  The output voltage of the high voltage power supply may be a positive DC high voltage or a negative DC high voltage. Alternatively, an alternating high voltage may be used.

  The main electrode plate 1 may be grounded and a high voltage may be applied to the sub electrode plate 2.

  The material of the electrode plate may be a metal other than SUS304 such as iron or aluminum, or may be a material such as a semiconductive resin.

  The size of the electrode plate may be arbitrary.

  In addition, although the plate | board thickness of an electrode plate may be arbitrary, from a viewpoint of the ease of manufacture, between 0.1 mm and 2 mm is preferable.

  The number of protrusions provided on the electrode plate need not be seven in each row.

  The tip angle of the projection of the electrode plate does not need to be 30 degrees, but is preferably between 15 degrees and 120 degrees from the viewpoint of ease of manufacture.

  The protruding height of the protrusion does not need to be 10 mm, but is preferably between 3 mm and 30 mm from the viewpoint of ease of manufacture.

  In addition, the space | interval of adjacent protrusion does not need to be 12 mm.

(Embodiment 9)
The description which overlaps with other embodiment is abbreviate | omitted.

  In FIG. 19, large-area flat plates L7 that do not have protrusions and small-area flat plates S6 that do not have protrusions are arranged alternately and in parallel. A high voltage power supply is not shown. The arrows in the figure indicate the direction in which the wind induced by the ion wind in the electrode plate flows.

  FIG. 20 is a view from above. The double circle in the figure indicates the tip position of the flat plate L7. Dashed arrows indicate ion wind. What is important here is that the position of the end portion of the flat plate L7 is at a position deeper (dented) than the closest end portion of the flat plate S6. With this positional relationship, the electric field strength between both ends is increased, gas molecules are easily ionized, and an ion wind blows from the end of the recessed position toward the nearest end.

  Hereinafter, the present embodiment will be described in more detail.

  About the flat plate S6 and the flat plate L7, those materials and plate | board thickness are the same as Embodiment 1. FIG. Regarding the size, the flat plate S6 is 100 mm × 124 mm, and the flat plate L7 is 160 mm × 124 mm. Various conditions relating to wind speed measurement are the same as in the first embodiment. Tables 8 and 9 show the measurement results of the wind speed.

  Table 8 shows the wind speed characteristics when the applied voltage to the flat plate L7 is changed under the condition that the position of the end portion of the flat plate L7 is 30 mm deeper than the nearest end of the flat plate S6. The electrode plate spacing is 10 mm. The wind speed increases as the applied voltage increases.

  Table 9 records the wind speed when the recess distance X [mm] at the end of the flat plate L7 is changed when the electrode plate interval is 10 mm. As the high voltage, a negative voltage is applied to the flat plate L7 at a constant value of −11.5 kV.

  It can be seen that a certain wind speed can be obtained if the recess distance X of the end projection is 20 mm or more.

  The output voltage of the high voltage power supply may be a positive DC high voltage or a negative DC high voltage. Alternatively, an alternating high voltage may be used.

  The flat plate L7 may be grounded and a high voltage may be applied to the flat plate S6.

  The material of the flat plate may be a metal other than SUS304 such as iron or aluminum, or may be a material such as a semiconductive resin.

  The size of each flat plate may be any size.

  In addition, although the plate | board thickness of a flat plate may be arbitrary, from a viewpoint of the ease of manufacture, between 0.1 mm and 2 mm is preferable.

  The blower according to the present invention can blow with an ionic wind generated by applying a high voltage to a plurality of protrusions having a sharp tip. The ventilation resistance is small, compact, and the processing air volume can be increased, so that it is useful in a wide range as an air blower or the like.

DESCRIPTION OF SYMBOLS 1 Main electrode plate 1a Main electrode protrusion 2 Sub electrode plate 2a Sub electrode protrusion 3 High voltage power supply 4 Electrode plate 4a Projection 5 Ground plate 6 Flat plate S
7 Flat L

Claims (6)

Alternately, a flat main electrode plate provided with a plurality of protrusions with sharp tips (hereinafter referred to as main electrode protrusions) and a flat sub electrode plate provided with a plurality of protrusions with sharp tips (hereinafter referred to as sub electrode protrusions). The main electrode protrusion and the sub electrode protrusion are both oriented in the same direction, and the sub electrode plate is provided with an electrode plate portion ahead of the front end of the main electrode protrusion, and the main electrode plate The electrode plate portion is provided to the front of the tip of the sub-electrode projection, and a high voltage is applied between the main electrode plate and the sub-electrode plate so that the tip of the main electrode projection and the sub-electrode projection is oriented. A blower that generates ionic wind. The main electrode protrusions and the sub electrode protrusions are arranged in one or a plurality of rows in a direction perpendicular to the direction in which the main electrode protrusions and the sub electrode protrusions are directed, and the direction in which the tip ends of the protrusions are directed. The air blower according to claim 1, wherein the main electrode protrusion and the sub electrode protrusion are arranged in front and back. The distance between the most downstream end of the main electrode protrusion and the downstream end of the sub electrode plate is 8 mm or more, and the most downstream end of the sub electrode protrusion and the downstream side of the main electrode plate The air blower according to claim 1 or 2, wherein a distance from the end side of the fan is 8 mm or more. The air blower according to any one of claims 1 to 3 , wherein a distance between the main electrode plate and the sub electrode plate is between 5 mm and 30 mm. The blower according to any one of claims 1 to 4 , wherein a voltage applied to the main electrode plate and the sub electrode plate is between 5 kV and 20 kV. The main electrode plate provided with the main electrode protrusions and the sub electrode plate provided with the sub electrode protrusions in parallel are alternately arranged in parallel.
The sub-electrode plate is provided with an electrode plate portion ahead of the front end of the main electrode protrusion, and similarly, the main electrode plate is provided with an electrode plate portion ahead of the front end of the sub-electrode protrusion. -Blower apparatus as described in any one of 3.

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