JP2013149561A - Ion generation device and electric apparatus using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a compact ion generation device which has a large ion generation amount.SOLUTION: An ion generation device 1 includes needle electrodes 2, 3 which generate positive ions and negative ions respectively, and a top plate part 6a having regions A1, A2 opposed to tips of the needle electrodes 2, 3. The positive ions stick on the region A1 to give electric reaction force to positive ions to be further generated. The negative ions stick on the region A2 to give electric reaction force to negative ions to be further generated. The positive ions and negative ions are sent out by blowing air in an X direction crossing a Y direction in which the needle electrodes 2, 3 are arrayed. Consequently, the positive ions and negative ions can be suppressed from disappearing by re-bonding each other.

Description

  The present invention relates to an ion generator and an electric device using the same, and more particularly to an ion generator that generates positive ions and negative ions and an electric device using the same.

  In recent years, many ion generators using a discharge phenomenon have been put into practical use. The types of ion generators are roughly classified into two types. One of them is a metal wire, a metal plate with an acute angle, a needle-shaped piece of metal as a discharge electrode, and a ground potential metal plate or grid as an induction electrode, or an induction electrode as a ground. The electrode is not arranged. In this type of ion generator, air serves as an insulator. For example, when a high voltage is applied to the needle-shaped discharge electrode, the electric field is concentrated at the tip of the discharge electrode, the air near the tip is broken down, and a discharge phenomenon occurs to generate ions.

  The other is composed of a pair of an induction electrode embedded in a high voltage dielectric and a discharge electrode formed on the dielectric surface. In this type of ion generator, when a high voltage is applied to the discharge electrode, the electric field concentrates in the vicinity of the outer edge of the discharge electrode, and the air in that portion breaks down, causing a discharge phenomenon and generating ions.

  Regardless of the structural differences between the ion generators, the ions generated by the ion generators are not less than adhering to the surrounding members or being adsorbed to the charged members at the stage of being sent out into the air. Disappear. In particular, in an ion generator having a positive ion generator and a negative ion generator, generated positive ions and negative ions are attracted to each other by Coulomb force, recombine and disappear, and the generated ions cannot be used effectively. There is a problem. For this reason, there is a type in which a partition wall having a predetermined height is provided between the positive ion generation unit and the negative ion generation unit to suppress recombination of positive ions and negative ions (for example, see Patent Document 1).

JP 2000-340391 A

  However, in Patent Document 1, there is a problem that in a space higher than the partition wall, positive ions and negative ions are attracted and recombined by mutual Coulomb forces and disappear. In addition, there is a problem that the size of the apparatus increases when the partition walls are raised.

  Therefore, a main object of the present invention is to provide a small ion generator having a large ion generation amount and an electric apparatus using the same.

  The ion generator according to the present invention includes a first ion generating unit that generates positive ions, a second ion generating unit that generates negative ions, and first and second ion generating units that face the first and second ion generating units, respectively. And a flat plate member having a second region. Positive ions are attached to the first region to give an electric repulsive force to further generated positive ions, and negative ions are attached to the second region to give an electric repulsive force to further generated negative ions. .

  Preferably, a projection is further provided on the surface of the flat plate member and separates the first and second regions. The positive ions are attached to the surface of the protrusions on the first region side, and an electric repulsive force is applied to the generated positive ions, and negative ions are applied to the surface of the protrusions on the second region side. It is made to adhere and an electric repulsive force is given to the negative ion which generate | occur | produces further.

  Preferably, the flat plate member is formed with a slit or a groove for electrically separating the first and second regions.

  Preferably, each of the first and second ion generation units includes a protruding electrode having a tip protruding from the surface of the substrate.

  Preferably, each of the first and second ion generation units includes a patterned electrode formed on the surface of the substrate.

  Preferably, each of the first and second ion generating units includes a needle electrode provided along the surface of the substrate.

  The electrical apparatus according to the present invention transports positive ions and negative ions in a second direction that intersects the first direction in which the ion generator and the first and second ion generators are arranged. And a fan that sends the wind.

  In the ion generator according to the present invention, a flat plate member is provided opposite to the first and second ion generating portions, and positive ions and negative ions generated by the first and second ion generating portions on the surface of the flat plate member, respectively. Is attached, and an electric repulsive force is given to the positive ions and negative ions generated further. Therefore, the disappearance of ions due to recombination of positive ions and negative ions can be suppressed, and a large ion generation amount can be obtained. Moreover, since the partition is not provided, the apparatus is not increased in size.

It is a perspective view which shows the structure of the ion generator by Embodiment 1 of this invention. It is a disassembled perspective view which shows the structure of the ion generator shown in FIG. It is a circuit block diagram which shows the structure of the ion generator shown in FIG. It is a figure which shows typically operation | movement of the ion generator shown in FIG. 6 is a diagram illustrating a comparative example of the first embodiment. FIG. It is the front view and side view which show the example of a change of Embodiment 1. It is a figure which shows the principal part of the ion generator by Embodiment 2 of this invention. It is a figure which shows the principal part of the ion generator by Embodiment 3 of this invention. It is a figure which shows the principal part of the ion generator by Embodiment 4 of this invention. It is a figure which shows typically operation | movement of the ion generator shown in FIG. It is a figure which shows the principal part of the ion generator by Embodiment 5 of this invention. It is a figure which shows typically operation | movement of the ion generator shown in FIG. It is a figure which shows the example of a change of Embodiment 5. FIG.

[Embodiment 1]
As shown in FIG. 1, an ion generator 1 according to Embodiment 1 of the present invention includes a needle electrode 2 that is a discharge electrode for generating positive ions and a needle that is a discharge electrode for generating negative ions. And a rectangular substrate 4 on which the needle-like electrodes 2 and 3 are mounted.

  The short side direction of the substrate 4 is the X direction, the long side direction of the substrate 4 is the Y direction, and the direction perpendicular to the surface of the substrate 4 is the Z direction. Each of the needle-like electrodes 2 and 3 is directed in the Z direction and penetrates the substrate 4, and the tip of each of the needle-like electrodes 2 and 3 protrudes on the surface of the substrate 4. The needle-like electrodes 2 and 3 are arranged in the Y direction at a predetermined interval.

  When a positive high voltage is applied to the needle electrode 2, a discharge phenomenon occurs at the tip of the needle electrode 2 and positive ions are generated. When a negative high voltage is applied to the needle electrode 3, a discharge phenomenon occurs at the tip of the needle electrode 3 and negative ions are generated.

  The substrate 4 is horizontally accommodated at one end in a substantially square rectangular housing 5 when viewed from the Z direction. A portion of the opening of the housing 5 corresponding to the substrate 4 is covered with a U-shaped protective cover 6. The remaining part of the opening of the housing 5 is closed by a flat lid member 7.

  The protective cover 6 supports the needle-like electrodes 2 and 3 in a flat plate-like top plate portion 6a provided in parallel to the substrate 4 so as to face the tip, and one end portion and the other end portion of the top plate portion 6a, respectively. Support parts 6b and 6c. A predetermined distance is set between the top 6a and the tips of the needle-like electrodes 2 and 3. The top plate portion 6a is used to suppress recombination of positive ions and negative ions generated at the needle-like electrodes 2 and 3. This will be described later.

  The protective cover 6 is provided with an opening so that the two needle-like electrodes 2 and 3 can be seen when viewed from the X direction. In other words, the substrate 4 and the protective cover 6 form a rectangular cylindrical ventilation path. When the ion generator 1 is mounted on an electrical device such as an air purifier or an air conditioner, an X-direction wind (air flow) is sent to the needle electrodes 2 and 3 by the fan 8. Positive ions and negative ions generated by the needle-like electrodes 2 and 3 are sent out indoors by the wind.

  The protective cover 6 and the lid member 7 may be formed integrally or separately. The housing 5, the protective cover 6, and the lid member 7 are formed of an insulating material such as plastic, and are fixed to each other by, for example, an adhesive.

  FIG. 2 is an exploded perspective view showing the configuration of the ion generator 1 in more detail. FIG. 3 is a circuit block diagram showing the configuration of the ion generator 1. 2 and 3, the connector substrate 10 is fitted in the notch at the rear of the housing 5, and the surface of the connector substrate 10 is exposed to the outside of the housing 5. A plurality of power supply terminals 11 and a plurality of control terminals 12 are provided on the surface of the connector substrate 10. Each power supply terminal 11 receives a power supply voltage from the external power supply 20. Each control terminal 12 is used to exchange control signals and the like between the external control device 21 and the ion generator 1. The external power supply 20 and the external control device 21 are built in, for example, the electric device.

  A storage device 13 is mounted on the back surface of the connector substrate 10. The storage device 13 is driven by a power supply voltage supplied from the external power supply 20 via the power supply terminal 11. The storage device 13 is connected to the external control device 21 via the control terminal 12 and stores information such as the usage time, usage history, and compatible models of the ion generator 1.

  In the housing 5, a control circuit 14 is accommodated adjacent to the connector substrate 10, and a high-voltage transformer 15 is accommodated adjacent to the control circuit 14. The control circuit 14 is driven by a power supply voltage supplied from the external power supply 20 via the power supply terminal 11 and generates a pulse signal having a predetermined frequency based on a control signal supplied from the external control device 21 via the control terminal 12. To do.

  High-voltage transformer 15 includes a primary winding 15a and a secondary winding 15b. When the pulse signal generated by the control circuit 14 is applied to the primary winding 15a, the pulse signal is boosted and a high voltage pulse is output to the secondary winding 15b.

  In addition, on the back surface of the substrate 4, induction electrodes 16 and 17 corresponding to the needle-like electrodes 2 and 3, respectively, and diodes D1 and D2 are mounted. The anode of the diode D <b> 1 is connected to one terminal of the secondary winding 15 b of the high voltage transformer 15, and the cathode is connected to the proximal end portion of the needle electrode 2. The anode of the diode D2 is connected to the proximal end portion of the needle electrode 3, and the cathode is connected to one terminal of the secondary winding 15b of the high-voltage transformer 15. The induction electrodes 16 and 17 are both connected to the other terminal of the secondary winding 15 b of the high-voltage transformer 15. The acicular electrodes 2 and 3, the substrate 4, the induction electrodes 16 and 17, and the diodes D1 and D2 constitute an ion generating element 18.

When a high voltage pulse is output to the secondary winding 15 b of the high voltage transformer 15, a positive high voltage is applied to the needle electrode 2 and a negative high voltage is applied to the needle electrode 3. As a result, positive ions are generated at the tip of the needle electrode 2 and negative ions are generated at the tip of the needle electrode 3. The voltage of the positive high-voltage pulse is set so that positive ions are H ⁺ (H ₂ O) _m (where m is an arbitrary natural number). The voltage of the negative high-voltage pulse is set so that negative ions are O ₂ ⁻ (H ₂ O) _n (where n is an arbitrary natural number).

When positive ions H ⁺ (H ₂ O) _m and negative ions O ₂ ⁻ (H ₂ O) _n are released into the air at the same time, they are positive on the surface of bacteria, molds, viruses, etc. floating in the air. Ions and negative ions adhere to each other and a chemical reaction occurs to generate hydroxyl radicals / OH and hydrogen peroxide H ₂ O _{2 as} active substances. These active substances kill bacteria and molds and inactivate viruses. As the number of positive ions and negative ions released increases, ions adhere to a large number of bacteria, molds, viruses, etc. in a short time, and thus the effect of sterilization and inactivation increases.

  A partition plate 5a parallel to the YZ plane is provided in the housing 5. The ion generating element 18 is accommodated on one side of the partition plate 5a, and the connector substrate 10, the control circuit 14, and the high-voltage transformer 15 are accommodated on the other side. The partition plate 5a is formed when the ion generating element 18, the connector board 10, the control circuit 14 and the high voltage transformer 15 are assembled in the housing 5 and then the high voltage transformer 15 side is sealed with a resin for preventing current leakage. In order to prevent the resin from flowing into the ion generating element 18 side.

  Next, the operation of the ion generator 1 will be described. When a power supply voltage is supplied from the external power supply 20 to the plurality of power supply terminals 11 and a control signal is supplied from the external control device 21 to the plurality of control terminals 12, the ion generator 1 is activated. A pulse signal of a predetermined frequency generated by the control circuit 14 is boosted by the high-voltage transformer 15 and given to the ion generating element 18, and positive ions and negative ions are generated by the needle electrodes 2 and 3, respectively, as shown in FIG. To do.

  The size of ions is on the order of nanometers and is not actually visible, but in order to facilitate explanation and understanding, ions are schematically represented by symbols in FIG. A symbol with “+” in a circle indicates a positive ion, and a symbol with “−” in a circle indicates a negative ion.

  Positive ions and negative ions generated at the tips of the needle electrodes 2 and 3 move in the peripheral space, and regions A1 and A2 of the surface of the top plate portion 6a of the protective cover 6 that face the needle electrodes 2 and 3. Clash with each other. Positive ions and negative ions colliding with the regions A1 and A2 adhere to the regions A1 and A2, respectively, and give positive charges and negative charges to the surface of the top plate portion 6a, respectively. Although the time varies depending on the number of ions emitted from the needle-like electrodes 2 and 3 and the surface area of the top plate portion 6a, the regions A1 and A2 on the surface of the top plate portion 6a are eventually filled with positive and negative charges, respectively. The surface of the plate portion 6a is charged.

  The positive ions and negative ions emitted from the needle-like electrodes 2 and 3 move toward the top plate portion 6a even after the surface of the top plate portion 6a is filled with positive and negative charges. However, since the regions A1 and A2 of the top plate portion 6a are already charged with positive and negative electricity, the positive ions and the negative ions become stronger as they approach the regions A1 and A2 of the top plate portion 6a. Receive.

  The positive ions emitted from the needle electrode 2 receive a repulsive force from both the needle electrode 2 and the region A1 of the top plate portion 6a. Since the repulsive force based on the charge is inversely proportional to the square of the distance, a large amount of positive ions are present in the intermediate portion between the needle electrode 2 and the region A1 of the top plate portion 6a. Similarly, the negative ions released from the needle electrode 3 receive a repulsive force from both the needle electrode 3 and the region A2 of the top plate portion 6a. Since the repulsive force based on the charge is inversely proportional to the square of the distance, a large amount of negative ions are present in the intermediate portion between the needle electrode 3 and the region A2 of the top plate portion 6a.

  That is, positive ions do not adhere to the needle electrode 2 and negative ions do not adhere to the needle electrode 3. Further, positive ions cannot adhere to the area A1 of the top plate portion 6a, and negative ions cannot adhere to the region A2 of the top plate portion 6a. In this state, when the wind from the fan 8 is sent between the top plate part 6a and the substrate 4, the staying positive ions and negative ions are sent out from the ion generator 1 on the wind. As a result, a large ion generation amount can be obtained.

[Comparative Example 1]
An ion generating apparatus that is Comparative Example 1 in which the top plate portion 6a is removed from the ion generating apparatus 1 of Embodiment 1 was created, and the amount of ion generation of Embodiment 1 and Comparative Example 1 was compared. Air was blown in the X direction in FIG. 1, and the amount of generated ions was measured on the downstream side of the wind. Assuming that the positive ion generation amount of the ion generation device of Comparative Example 1 is 1, the positive ion generation amount of the ion generation device 1 of Embodiment 1 was 1.1. The same result was obtained for the amount of negative ions generated. Therefore, the ion generation amount could be increased by 10% by providing the top plate portion 6a.

[Comparative Example 2]
The top plate 6a is removed from the ion generator 1 according to the first embodiment, and as shown in FIG. 5, an ion serving as a comparative example 2 in which a partition wall 22 perpendicular to the substrate 4 is provided between the needle electrodes 2 and 3 A generator was created, and the amount of ions generated in the first embodiment and the comparative example 2 were compared. Air was blown in the X direction in FIG. 1, and the amount of generated ions was measured on the downstream side of the wind. Assuming that the positive ion generation amount of the ion generation device of Comparative Example 2 is 1, the positive ion generation amount of the ion generation device 1 of Embodiment 1 was 1.1. The same result was obtained for the amount of negative ions generated. Therefore, it has been found that the amount of ion generation is increased by 10% when the top plate portion 6a is provided rather than when the partition wall 22 is provided.

  This is because, as shown in FIG. 5, even if the partition wall 22 is provided, positive ions and negative ions recombine and disappear above the partition wall 22. If the partition wall 22 is made high, recombination of positive ions and negative ions can be suppressed, but the size of the apparatus is increased.

  On the other hand, in the first embodiment, the distance between the tips of the needle-like electrodes 2 and 3 and the surface of the top plate portion 6a may be set to a predetermined distance, and the size of the apparatus is not increased. Therefore, a thin and small ion generator 1 can be realized. For this reason, it becomes possible to mount the ion generator 1 in an electric device that could not be mounted due to dimensional restrictions in the past, or to install it in a place (for example, in a duct) where the ion generator 1 could not be installed. Applications can be expanded and the degree of freedom of installation location can be improved.

  In addition, since the protective cover 6 is provided, it is possible to prevent the user of the ion generator 1 from touching the tip of the needle-like electrodes 2 and 3 to be injured or damaging the needle-like electrodes 2 and 3. .

  Positive ions are adsorbed on the needle electrode 3 and the area A2 of the top plate portion 6a, and negative ions are adsorbed on the needle electrode 2 and the area A1 of the top plate portion 6a. Therefore, it is preferable to arrange the needle-like electrode 2 and the needle-like electrode 3 apart from each other.

  In addition, it is preferable that the positive charges and negative charges attached to the surface of the top plate portion 6a do not move easily and do not recombine. For this reason, the top plate portion 6a is basically formed of a non-conductive material or a dielectric material that does not conduct electricity. However, even when the top plate portion 6a is formed of a metal material, the top plate portion 6a functions as an insulator as long as each of the regions A1 and A2 is insulated from the periphery.

  In addition, when the ion generator 1 is mounted on an electric device, it is preferable to install a ventilation path so that air flows between the top plate portion 6 a and the substrate 4. Further, the faster the air flow for blowing away the ions staying in the space between the top plate portion 6a and the substrate 4, the better. FIG. 1 shows a typical air delivery direction. In FIG. 1, winds in two directions, the direction indicated by the solid line and the direction indicated by the dotted line, are shown, but the present invention is not limited to this, and it is only necessary to blow in the direction intersecting the Y direction in FIG. 1. .

[Example of change]
FIG. 6A is a front view of an ion generator as a modification of the first embodiment, and FIG. 6B is a partially broken side view thereof. 6 (a) and 6 (b), this ion generator differs from the ion generator 1 of FIG. 1 in that the lid member 7 is replaced with a lid member 7A. The lid member 7A has two holes that allow the needle-like electrodes 2 and 3 to pass therethrough. The entire opening of the housing 5 is closed by the lid member 7A, and the two needle-like electrodes 2 and 3 pass through the two holes of the lid member 7A and protrude above the lid member 7A. The protective cover 6 is formed integrally with the lid member 7 </ b> A, and the surface of the top plate 6 a faces the surfaces of the needle-like electrodes 2 and 3. Since other configurations and operations are the same as those in the first embodiment, description thereof will not be repeated. Even in this modified example, the same effect as in the first embodiment can be obtained.

[Embodiment 2]
FIG. 7 is a diagram showing a main part of the ion generating apparatus according to the second embodiment of the present invention, which is compared with FIG. Referring to FIG. 7, the second embodiment is different from the first embodiment in that rib-like protrusions 23 are provided on the surface of the top plate 6a on the substrate 4 side. The protrusion 23 extends in the X direction (see FIG. 1) along the boundary between the regions A1 and A2, and has a predetermined height when viewed from the surface of the top plate 6a. The areas A1 and A2 are separated by the protrusion 23.

  As shown in FIG. 7, when positive ions and negative ions are generated at the tip portions of the needle-like electrodes 2 and 3, respectively, positive ions are generated on the surface A1 of the top plate portion 6a and the surface of the projection 23 on the region A1 side. And negative ions adhere to the surface A2 of the top plate portion 6a and the surface of the protrusion 23 on the region A2 side.

  The positive ions further generated by the needle-like electrode 2 are repelled by the portion of the top plate portion 6a and the projection 23 where the positive ions are attached. Further, the negative ions further generated in the needle-like electrode 3 are repelled by the portion of the top plate portion 6a and the protrusion 23 where the negative ions are attached. Thereby, a space V in which ions are diluted is formed between the lower end of the protrusion 23 and the substrate 4, and recombination of positive ions and negative ions can be more strongly suppressed.

[Embodiment 3]
FIG. 8 is a diagram showing a main part of the ion generator according to Embodiment 3 of the present invention, and is a diagram contrasted with FIG. Referring to FIG. 8, the third embodiment is different from the first embodiment in that the top plate portion 6 a is divided into two by a slit 24. The slit 24 extends in the X direction (see FIG. 1) along the boundary between the regions A1 and A2, and has a predetermined width. The regions A1 and A2 of the top plate portion 6a are electrically separated by the slit 24 and insulated from each other.

  As shown in FIG. 8, when positive ions and negative ions are generated at the tip portions of the needle-like electrodes 2 and 3, respectively, positive ions and negative ions adhere to the regions A1 and A2 on the surface of the top plate portion 6a. Since the slit 24 is provided between the areas A1 and A2, the movement of charges between the areas A1 and A2 is prevented, and the charged state of each of the areas A1 and A2 of the top plate portion 6a is stably maintained.

  After the areas A1 and A2 of the top plate portion 6a are charged, as in the first embodiment, positive ions stay in the space between the needle electrode 2 and the region A1 of the top plate portion 6a, and negative ions are It stays in the space between the needle electrode 3 and the region A2 of the top plate portion 6a. The staying positive ions and negative ions are carried out of the ion generator 1 by the wind from the fan 8.

  In the third embodiment, since the slit 24 is provided between the areas A1 and A2 of the top plate 6a, the top plate 6a can be stably charged even in a high humidity environment, and positive ions and negative ions can be recharged. Binding can be suppressed.

  In addition, you may cut | disconnect area | region A1, A2 of the top-plate part 6a completely with the slit 24, or make the length of the slit 24 shorter than the width | variety of the top-plate part 6a, and leave the both ends of the top-plate part 6a. You may keep it.

  Further, a groove having a predetermined depth and a predetermined width may be provided instead of the slit 24. Similar to the slit 24, this groove extends in the X direction (see FIG. 1) along the boundary between the regions A1 and A2. Such a groove can also prevent the movement of electric charges between the areas A1 and A2, and stably maintain the respective charged states of the areas A1 and A2 of the top plate portion 6a.

[Embodiment 4]
FIG. 9 is a diagram showing a main part of an ion generator according to Embodiment 4 of the present invention. Referring to FIG. 9, the fourth embodiment is different from the first embodiment in that substrate 4, needle-like electrodes 2 and 3, and induction electrodes 16 and 17 in FIG. 4 are substrate 30 and pattern-like electrodes 31 and 32. And the induction electrodes 33 and 34 are replaced.

  The short side direction of the rectangular substrate 30 is the X direction, and the long side direction is the Y direction. The patterned electrodes 31 and 32 are formed by printing a conductive paste on the surface of the substrate 30 in a predetermined shape. The pattern electrode 31 is a discharge electrode for generating positive ions. The pattern electrode 32 is a discharge electrode for generating negative ions. The induction electrodes 33 and 34 are formed by printing a conductive paste in a predetermined shape on the back surface of the substrate 30.

  The pattern electrodes 31 and 32 are arranged in the Y direction and are formed symmetrically with respect to each other. The patterned electrode 31 includes four wiring portions arranged in an E shape. One wiring portion is disposed in the central portion of the substrate 30 and extends in the X direction, and three wiring portions extend in the Y direction from the central portion of the substrate 30 toward the outside. A positive voltage application terminal 31a is provided in the wiring portion extending in the X direction.

  Each of the three wiring portions extending in the Y direction is provided with a plurality of spinous electrodes 31b at a predetermined pitch. Each spinous electrode 31b extends in the X direction, and the tip thereof is located in the middle between two adjacent wiring portions. In FIG. 9, the upper wiring portion is provided with three downward spinous electrodes 31b, and the central wiring portion is provided with two upward facing spinous electrodes 31b. The spinous electrodes 31b are alternately provided in the Y direction. The central wiring portion is provided with three downward spinous electrodes 31b, and the lower wiring portion is provided with three upward spinous electrodes 31b. The spinous electrodes 31b are alternately provided in the Y direction. The pattern electrode 32 is formed in line symmetry with the pattern electrode 31 and includes a negative voltage application terminal 32a and a plurality of spine electrodes 32b.

  The induction electrodes 33 and 34 are formed on the back surface of the substrate 30 so as to face the pattern electrodes 31 and 32, respectively, and are formed symmetrically with respect to each other. The induction electrode 33 includes three wiring portions arranged in a U-shape. One wiring portion is disposed at the end portion of the substrate 30 and extends in the X direction, and the two wiring portions extend inward from the end portion of the substrate 30 in the Y direction. A reference voltage application terminal 33a is provided in the wiring portion extending in the Y direction.

  When viewed from the Z direction, the upper wiring portion in FIG. 9 of the two wiring portions extending in the Y direction is the upper two wiring portions of the three wiring portions of the patterned electrode 31. And is opposed to the tips of the five spinous electrodes 31b. Further, the lower wiring portion in FIG. 9 of the two wiring portions extending in the Y direction is the middle of the lower two wiring portions of the three wiring portions of the pattern electrode 31. And is opposed to the tips of the six spinous electrodes 31b. The induction electrode 34 is formed in line symmetry with the induction electrode 33 and includes a reference voltage application terminal 34a.

  When a positive high voltage is applied between the positive voltage application terminal 31a and the reference voltage application terminal 33a, creeping discharge is transmitted along the surface of the substrate 30 between the tip of each spine electrode 31b and the induction electrode 33. The positive ions are emitted from the tip of each spinous electrode 31b toward the upper side of the substrate 30 (Z direction).

  Similarly, when a negative high voltage is applied between the negative voltage application terminal 32a and the reference voltage application terminal 34a, the surface of the substrate 30 is transmitted between the tip of each spine electrode 32b and the induction electrode 34. Creeping discharge occurs, and negative ions are released from the tip of each spinous electrode 32b toward the upper side (Z direction) of the substrate 30.

  As shown in FIG. 10, the positive ions and negative ions generated by the pattern electrodes 31 and 32 adhere to the areas A1 and A2 on the surface of the top plate portion 6a, respectively. As a result, as in the first embodiment, positive ions and negative ions stay between the patterned electrodes 31 and 32 and the regions A1 and A2 on the surface of the top plate portion 6a. The ions staying in this way are quickly carried out by the wind sent from the fan 8 in the X direction. In the fourth embodiment, the same effect as in the first embodiment can be obtained.

[Embodiment 5]
FIG. 11 (a) is a front view showing a main part of an ion generator according to Embodiment 5 of the present invention, and FIG. 11 (b) is a side view thereof. 11 (a) and 11 (b), the fifth embodiment is different from the first embodiment in that the substrate 4, the needle-like electrodes 2 and 3, and the induction electrodes 16 and 17 in FIG. This is that the needle electrodes 41 and 42 and the induction electrodes 43 and 44 are replaced. The acicular electrode 41 is a discharge electrode for generating positive ions. The acicular electrode 42 is a discharge electrode for generating negative ions.

  A needle-like electrode 41 is provided at the left end of the substrate 40 in FIG. 11A, and a needle-like electrode 42 is provided at the right end of the substrate 40. Each of the needle-like electrodes 41, 42 is arranged so as to be along the surface of the substrate 40 so as to be directed in the short side direction of the substrate 40. The tips of the needle-like electrodes 41 and 42 are disposed at positions corresponding to the upper long side of the substrate 40 in FIG. The base end portions of the needle-like electrodes 41 and 42 are fixed to a terminal (not shown) on the surface of the substrate 40 by, for example, solder.

  When the substrate 40 is viewed from the front, a semicircular cutout portion 40a having a predetermined size is formed on the substrate 40 with the tip of the needle electrode 41 as the center, and a half of the predetermined size is formed on the substrate 40 with the tip of the needle electrode 42 as the center. A circular cutout 40b is formed.

  On the back surface of the substrate 40, a pair of induction electrodes 43 is provided in a portion of the edge of the notch 40a facing the tip of the needle electrode 41, and the needle electrode 42 of the edge of the notch 40b is provided. A pair of induction electrodes 44 is provided at a portion facing the tip.

  FIG. 12 is a diagram showing the operation of the ion generator, and is a diagram contrasted with FIG. The needle-like electrodes 41 and 42 are arranged in a direction (Z direction) perpendicular to the top plate portion 6a. When a positive high voltage is applied between the needle-like electrode 41 and the induction electrode 43, a discharge occurs between the tip of the needle-like electrode 41 and the induction electrode 43, and from the tip of the needle-like electrode 41 in all directions. Positive ions are released. Similarly, when a negative high voltage is applied between the needle electrode 42 and the induction electrode 44, a discharge occurs between the tip portion of the needle electrode 42 and the induction electrode 44, and from the tip portion of the needle electrode 42. Negative ions are released in all directions.

  As shown in FIG. 12, the positive ions and negative ions generated by the needle-like electrodes 41 and 42 adhere to the areas A1 and A2 on the surface of the top plate portion 6a, respectively. As a result, as in the first embodiment, positive ions and negative ions stay between the needle-like electrodes 41 and 42 and the regions A1 and A2 on the surface of the top plate portion 6a. The ions staying in this way are quickly carried out by the wind sent from the fan 8 in the X direction. In the fifth embodiment, the same effect as in the first embodiment can be obtained.

  FIG. 13 is a diagram showing a modification of the fifth embodiment, and is a diagram contrasted with FIG. In FIG. 13, this modified example is different from the fifth embodiment in that the substrate 40 is arranged in parallel to the top plate portion 6a. Even in this modified example, the same effect as in the fifth embodiment can be obtained. In this modification, the top plate portion 6a is provided above the substrate 40, but the top plate portion 6a may be provided both above and below the substrate 40.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  DESCRIPTION OF SYMBOLS 1 Ion generator, 2, 3, 41, 42 Needle-shaped electrode, 4, 30, 40 Substrate, 5 Case, 5a Partition plate, 6 Protective cover, 6a Top plate part, 6b, 6c Support part, 7, 7A Lid Members, 10 Connector board, 11 Power supply terminal, 12 Control terminal, 13 Storage device, 14 Control circuit, 15 High voltage transformer, 15a Primary winding, 15b Secondary winding, 16, 17, 33, 34, 43, 44 Induction Electrode, 18 Ion generating element, 20 External power source, 21 External control device, 22 Bulkhead, 23 Protrusion, 24 Slit, 31, 32 Pattern electrode, A1, A2 region, D1, D2 diode, F fan, V space.

Claims (7)

A first ion generator that generates positive ions;
A second ion generator that generates negative ions;
A flat plate member having first and second regions facing the first and second ion generators, respectively.
Positive ions are attached to the first region to give an electric repulsive force to the generated positive ions, and negative ions are attached to the second region to further generate an electric repulsive force to the generated negative ions. Gives an ion generator. Furthermore, provided on the surface of the flat plate member, and provided with a protrusion that separates the first and second regions,
The positive ions are attached to the surface of the protrusions on the first region side, and an electric repulsive force is applied to the generated positive ions, and the surface of the protrusions on the second region side. The ion generator according to claim 1, wherein negative ions are attached to the negative ions and an electric repulsive force is applied to the generated negative ions.   The ion generator according to claim 1, wherein a slit or a groove for electrically separating the first and second regions is formed in the flat plate member.   4. The ion generator according to claim 1, wherein each of the first and second ion generation units includes a protruding electrode having a tip protruding from a surface of the substrate.   4. The ion generator according to claim 1, wherein each of the first and second ion generation units includes a patterned electrode formed on a surface of a substrate.   Each of the said 1st and 2nd ion generation part is an ion generator in any one of Claim 1 to 3 containing the acicular electrode provided along the surface of a board | substrate. An ion generator according to any one of claims 1 to 6,
An electric device comprising: a fan that sends a wind for transporting the positive ions and negative ions in a second direction that intersects a first direction in which the first and second ion generation units are arranged.

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