JP2006190500A - Apparatus for generating ion - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an apparatus for generating ion which can connect an ion generation element and a drive circuit substrate, without using a lead wire even when a gap is provided between the ion generation element and the drive circuit substrate. <P>SOLUTION: The apparatus 1A for generating the ion includes the ion generation element 3, the drive circuit substrate 2, spring contacts 21A-21D, and a bezel 7A. The ion generation element 3 has an electrode in which a drive voltage is applied and generates the ion using the drive voltage. The drive voltage is formed which should be supplied to the ion generation element 3. The spring contacts 21A-21D are arranged between the electrode of the ion generation element 3 and the drive circuit substrate 2. The bezel 7A is detachably attached in the drive circuit substrate 2 while the arrangement position of the ion generation element 3 is fixed with respect to the drive circuit substrate 2, in the state that the drive circuit substrate 2 and the ion generation element 3 are superposed on both sides of the spring contacts 21A-21D. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an ion generator that generates ions in the air by corona discharge.

  H + (H2 O) m (m is a natural number) as positive ions generated by corona discharge and O2-(H2 O) n (n is a natural number) as negative ions are generated by chemical reaction of ions. In recent years, attention has been paid to surround and sterilize floating bacteria floating in the air by active species (see, for example, Patent Document 1). Positive ions and negative ions are ions that are harmless to the human body existing in nature.

  As a typical example of the configuration of an ion generating element for generating positive ions and negative ions, a high-voltage alternating current drive voltage is applied between a discharge electrode and an induction electrode arranged to face each other with a dielectric interposed therebetween. The structure which performs corona discharge is mentioned. Usually, the ion generating element itself is often relatively compact.

  However, in order to use the ion generating element as an ion generating device, a driving circuit board that generates a driving voltage having a predetermined driving waveform and supplies the driving voltage to the ion generating device is further required. In general, in the ion generating apparatus 101, as shown in FIGS. 1A and 1B, the ion generating element 103 and the drive circuit substrate 102 are connected via the lead wire 104, and the molding agent is supplied via the inlet 105. 106 is injected. In this ion generator 101, it may take time to route the lead wire 104 inside.

Therefore, in the prior art for making the lead wires unnecessary, a fitting hole is formed in the printed board, and a fitting foot piece extending from the ozone panel is fitted into the fitting hole, and the printed board and There is an ozone generator for connecting an ozone panel (for example, see Patent Document 2).
JP 2002-95731 A Japanese Utility Model Publication No. 1-164734

  However, the configuration of the ozone generator according to Patent Document 2 is effective when the ozone panel is directly connected to the printed circuit board, but cannot be used when arranging the printed circuit board and the ozone panel at a distance.

  For this reason, in the case where any of the inventions of Patent Document 1 and Patent Document 2 is used, when a gap is formed between the ion generating element and the drive circuit board, the connection between the ion generating element and the drive circuit board is used. Lead wires must be used.

  An object of the present invention is to provide an ion generating apparatus capable of connecting an ion generating element and a driving circuit board without using a lead wire even when a gap is provided between the ion generating element and the driving circuit board. .

  Another object of the present invention is to provide an ion generating apparatus in which an ion generating element can be separated from a drive circuit board even after assembly.

(1) The ion generator of the present invention comprises:
An ion generating element having an electrode to which a driving voltage is applied and generating ions using the driving voltage;
A drive circuit board for generating a drive voltage to be supplied to the ion generating element;
A conductive member to be disposed between the electrode of the ion generating element and the drive circuit board;
Positioning that is detachably attached to the drive circuit board while fixing the arrangement position of the ion generation element with respect to the drive circuit board in a state where the drive circuit board and the ion generation element are stacked with the conductive member interposed therebetween. Members,
It is provided with.

  The ion generator of the present invention includes an ion generating element, a drive circuit board, a conductive member, and a positioning member. The ion generating element generates ions by discharge when a driving voltage having an appropriate waveform is supplied. This drive voltage is generated by the drive circuit board and supplied from the drive circuit board to the ion generating element via the conductive member. The positioning member holds a state in which the drive circuit board and the ion generating element are overlapped with the conductive member interposed therebetween. As a representative example of this “overlapped state”, a conductive member is disposed on the terminal of the drive circuit board, and the ion generating element is connected to the conductive member so that the conductive member and the electrode contact of the ion generating element are in contact. A state of being placed on top is mentioned.

  The positioning member is a member that is detachably attached to the drive circuit board while holding the ion generating element in part. A representative example of the positioning member is a bezel having a frame that holds the ion generating element and a plurality of protrusions whose base ends are fixed to the frame and whose distal ends are locked to the drive circuit board. When the positioning member is attached to the drive circuit board, the drive circuit board and the ion generating element are held in a mutually connected state. On the other hand, when the positioning member is removed from the drive circuit board, the connection state between the drive circuit board and the ion generating element is released.

(2) In the ion generator according to (1),
The positioning member has a frame portion that engages with the ion generating element and a protruding piece connected to the frame portion,
It is preferable that the drive circuit board has a protruding piece locking portion for locking the protruding piece.

  Here, a representative example of the frame portion is a member that is engaged with the side edge portion of the plate-like ion generating element and has an opening formed at a location corresponding to the discharge electrode of the ion generating element. One or more, preferably two or more projecting pieces are connected to the frame. When the driving circuit board and the ion generating element are overlapped with the conductive member interposed therebetween, the protruding piece locking portion of the driving circuit board and the protruding piece are engaged while pressing the frame portion against the ion generating element. Thus, the positioning member is attached to the drive circuit board. As a result, the ion generating element and the conductive member are sandwiched between the frame portion and the driving circuit board, and the positions of the driving circuit board, the conductive member, and the ion generating element are fixed. At this time, if an opening for allowing ions generated from the ion generating element to pass through is formed in the frame portion, the ion emission from the ion generating element is not hindered by the positioning member.

(3) In the ion generator according to (1) or (2),
It is preferable to further include a protective sheet that is disposed between the ion generating element and the drive circuit board and has a notch formed at a position corresponding to the position where the conductive member is disposed.

  In this configuration, a protective sheet is further disposed between the ion generating element and the drive circuit board. This protective sheet is an insulating sheet, and is used to prevent the molding agent from flowing into the connection portion of the ion generating element, the conductive member, and the drive circuit board when the opening is molded. Since the notch is formed in the protective sheet, even if the protective sheet is disposed between the ion generating element and the drive circuit board, the connection between the ion generating element and the drive circuit board is not hindered.

  The protective sheet needs to be in close contact with both the ion generating element and the drive circuit board so that there is no gap between them, so it is desirable that the protective sheet is thicker than the conductive member and has elasticity.

(4) The ion generator according to any one of (1) to (3),
The conductive member is fixed to the drive circuit board side.

  In this configuration, the conductive member interposed between the ion generating element and the drive circuit board is fixed to the drive circuit board side. Typical examples of the fixing method include soldering and caulking. Misalignment is less likely to occur between the conductive member and the drive circuit board, and as a result, poor connection is less likely to occur between the conductive member and the drive circuit board.

(5) The ion generator according to any one of (1) to (3),
The drive circuit board has an engaging portion that engages with the conductive member.

  In this configuration, since the conductive member and the engaging portion engage with each other to prevent the displacement of the conductive member with respect to the drive circuit board, it is not necessary to fix the conductive member member to the drive circuit board. For this reason, the process at the time of the assembly of an ion generator is simplified. Typical examples of the engaging portion include an engaging hole formed in the drive circuit board, a hemispherical raised portion formed by soldering around the terminal, and the like.

(6) In the ion generator according to any one of (1) to (5),
The conductive member is preferably a spring contact having elasticity in the stacking direction of the ion generating element and the conductive member.

  In this configuration, the spring contact is contracted in the stacking direction by being sandwiched between the ion generation element and the drive circuit board, and the elastic force of the spring contact acts on each of the ion generation element and the drive circuit board.

(1) According to the first aspect of the present invention, it is not necessary to use a lead wire even when the ion generating element and the drive circuit board are arranged with a gap. Further, since the ion generating element can be freely attached to and detached from the drive circuit board, the ion generating element can be easily replaced.

(2) The ion generating element can be detachably attached to the drive circuit board with a simple configuration.

(3) The molding agent or the like can be prevented from flowing between the ion generating element and the drive circuit board.

(4) Connection failure between the ion generating element and the drive circuit board is less likely to occur.

(5) Assembly work of the ion generator is simplified.

(6) By applying an elastic force to the ion generating element and the drive circuit board, the conductive member is unlikely to come off. In addition, since the conductive member is more closely attached to the ion generating element and the drive circuit board, the connection between the ion generating element and the drive circuit board can be kept good.

  The first embodiment will be described with reference to FIGS. 2A is a plan view illustrating a schematic configuration of the ion generator 1A, and FIG. 2B is a cross-sectional view taken along line AA of FIG. 2A. The ion generator 1 </ b> A includes a drive circuit board 2, an ion generation element 3, a housing 4, and a bezel 7. The housing 4 has a substantially rectangular parallelepiped box shape and is open at the top. A support portion 8 that supports the drive circuit board 2 is formed on the inner wall on the open surface side of the housing 4. The drive circuit board 2 is disposed so that the lower surface is supported by the support portion 8. The drive circuit board 2 includes a circuit unit 13 having circuit components such as a power connector, a boost coil, a capacitor, and a semiconductor. In the circuit unit 13, the power connector is connected to a DC power source via a connector cable. The boosting coil boosts the voltage supplied from the DC power source and generates a driving voltage to be supplied to the ion generating element 3.

  The ion generating element 3 is disposed so as to overlap the upper side of the drive circuit board 2. The ion generating element 3 has electrode contacts 31 to 34, and plate-like spring contacts 21 </ b> A to 21 </ b> D are disposed between the electrode contacts 31 to 34 of the ion generating element 3 and the terminals of the drive circuit board 2. The bezel 7 </ b> A is a positioning member for removably fixing the ion generating element 3 to the drive circuit board 2.

  3A is a plan view of the drive circuit board 2, and FIG. 3B is a cross-sectional view of the drive circuit board 2 taken along the line BB. The spring contacts 21 </ b> A to 21 </ b> D are fixed to the terminals on the upper surface of the drive circuit board 2. The spring contacts 21 </ b> A to 21 </ b> D are configured by bending a conductive plate, and the upper portions thereof are arranged so as to rise from the terminals of the drive circuit board 2. The spring contacts 21A to 21D are connected to the circuit unit 13 via the wiring patterns 12A to 12D, respectively.

  Further, bezel claw fixing holes 22 </ b> A to 22 </ b> D are formed in the drive circuit board 2. The bezel claw fixing holes 22A to 22D are holes through which bezel claws 72A to 72D of the bezel 7A described later are inserted, and constitute the protruding piece locking portion of the present invention.

  Note that a notch hole 23 may be appropriately formed at a position corresponding to the heating element 5 (see FIG. 2B) in the drive circuit board 2. The reason why the notch 23 is formed is to prevent the heating element 5 mounted on the ion generating element 3 from being damaged or cracked by contact with the drive circuit board 2. Therefore, when there is no possibility that the heating element 5 and the drive circuit board 2 come into contact with each other, the cutout hole 23 may not be formed.

  FIG. 4 is a diagram showing the configuration of the ion generating element 3. 4A is a plan view of the ion generating element 3, FIG. 4B is an XX sectional view of the ion generating element 3, and FIG. 4C is a YY section of the ion generating element 3. FIG. FIG.

  The ion generating element 3 includes a dielectric substrate 50, a discharge electrode 53, an induction electrode 54, and electrode contacts 34 and 31. The dielectric substrate 50 is configured by integrating a lower plate 51 and an upper plate 52 laminated in the thickness direction.

  In the present embodiment, the lower plate 51 and the upper plate 52 have a thickness of 0.45 mm, and the size of the dielectric substrate 50 is about 15 mm × 37 mm × 0.9 mm.

  In the discharge electrode 53, four lattices are continuously arranged in the longitudinal direction on the surface of the dielectric substrate 50, and each lattice has a plurality of sharpened portions protruding toward the inside. The induction electrode 54 is formed in a U shape in a planar shape, and each sharpened portion of the discharge electrode 53 is formed such that the tip portion thereof overlaps with the induction electrode. This configuration is intended to easily generate a discharge at both electrodes even at a low voltage by facilitating concentration of the electric field between the sharpened portion of the discharge electrode 53 and the induction electrode 54. A protective layer 55 is formed so as to cover the surface of the discharge electrode 53.

  The induction electrode 54 is disposed at a position sandwiched between the lower plate 51 and the upper plate 52 so as to face the discharge electrode 53. The induction electrode 54 is a belt-like electrode that is formed centering on the discharge electrode 53 and has a length and a width smaller than those of the discharge electrode 53.

  In the present embodiment, alumina is used as the lower plate 51, the upper plate 52, and the protective layer 55. However, the material of these members is not limited to alumina, and other ceramic materials such as crystallized glass, forsterite, and steatite, or resin materials such as polyimide and epoxy may be used. In the present embodiment, tungsten is used as the discharge electrode 53 and the induction electrode 54. Other examples used for the discharge electrode 53 and the induction electrode 54 include high melting point metal materials such as molybdenum.

  When producing the ion generating element 3, first, the induction electrode 54 is formed on the surface of the lower plate 51 made of an alumina sheet by pattern printing of a tungsten material. Subsequently, the upper plate 52 made of an alumina sheet is placed and pressure-bonded so as to cover the induction electrode 54. Subsequently, a discharge electrode 53 is formed on the surface of the upper plate 52 by pattern printing of a tungsten material. Subsequently, an alumina protective layer 55 is formed by coating so as to cover the entire discharge electrode 53. These members are fired at a temperature of 1400 to 1600 degrees Celsius in a non-oxidizing atmosphere.

  As shown in FIG. 4C, the discharge electrode 53 is connected to the electrode contact 34 that penetrates the lower plate 51 and the upper plate 52, and the induction electrode 54 is connected to the electrode contact 31 that penetrates the lower plate 51. . In the present embodiment, when the electrodes 53 and 54 are formed, the electrode contacts 34 and 31 are formed by filling an electrode material into holes formed at corresponding positions. A high-voltage AC drive voltage is applied from the drive circuit board 2 to the discharge electrode 53 and the induction electrode 54 via the spring contacts 21A and 21D and the electrode contacts 34 and 31.

  When a drive voltage having a peak value of about 4.2 kV and a frequency of 45 kHz is applied from the drive circuit board 2 to the ion generating element 3 with a DC power source, the discharge electrode 53 and the induction electrode 54 are connected. The positive ions and negative ions exceeding 160,000 / cc are respectively measured at a position about 25 cm away from the ion generating element 3 by the action of the corona discharge generated in FIG.

  Then, the assembly method of ion generator 1A is demonstrated using FIG. First, the spring contacts 21 </ b> A to 21 </ b> D are soldered to the electrode contacts of the drive circuit board 2. Subsequently, the protective sheet 9 is overlaid on the drive circuit board 2. Openings 91A to 91C are formed in the protective sheet 9 so as to correspond to the arrangement positions of the spring contacts 21A to 21D, and the protective sheet 9 is arranged so that the spring contacts 21A to 21D enter the openings 91A to 91C. Is done.

  Subsequently, the ion generating element 3 is overlaid on the protective sheet 9. At this time, the ion generating element 3 is positioned so that the electrode contacts 31 to 34 and the spring contacts 21A to 21D come into contact with each other.

  In this state, the bezel 7A is put on the ion generating element 3. The bezel 7A is made of a metal material and includes a frame portion 71A and bezel claws 72A to 72D. The frame portion 71 </ b> A has an opening large enough to expose the discharge electrode 53, and engages with the edge portion of the ion generating element 3. The bezel claws 72A to 72D extend from the frame portion 71A. The bezel claws 72A to 72D have narrow base end widths and have wide plate-like retaining portions 74A to 74D on the front end side.

  When attaching the ion generating element 3 to the drive circuit board 2, the bezel claws 72A to 72D are inserted into the bezel claw fixing holes 22A to 22D while the frame portion 71A and the ion generating element 3 are engaged.

  FIG. 6 shows a state in which the bezel claws 72A to 72D are inserted into the bezel claw fixing holes 22A to 22D while the frame portion 71A and the ion generating element 3 are engaged. By twisting the retaining portions 74A to 74D that have passed through the bezel claw fixing holes 22A to 22D by about 45 to 90 degrees, the bezel claws 72A to 72D cannot be removed from the bezel claw fixing holes 22A to 22D.

  Thereafter, the shield cover 15 is put on the ion generator 1A, and the outside of the bezel 7A on the upper surface of the drive circuit board 2 is covered with the shield cover 15 as shown in FIGS.

  An electric device to which the ion generator 1A is applied is an electric device having a suction portion that sucks external air into the inside, a blow-out portion that blows out the internal air to the outside, and an air passage formed between the suction portion and the blow-out portion It is. Specific examples include an air cleaner, an air conditioner, a vacuum cleaner, an in-vehicle air conditioner, and the like. By disposing the ion generator 1A in the ventilation path of these electrical devices, water vapor in the air blown out from the outlet is ionized by corona discharge, and approximately the same amount of positive ions and negative ions are generated. .

In the present embodiment, the positive ions are represented as H ⁺ (H ₂ O) _m (m is a natural number) with a plurality of water molecules attached around the hydrogen ions (H ⁺ ). On the other hand, the negative ion is accompanied by a plurality of water molecules around the oxygen ion (O ₂ ⁻ ), and is expressed as O ₂ ⁻ (H ₂ O) _n (n is a natural number). When these positive ions and negative ions attach to the surface of bacteria floating in the living space, they chemically react to generate hydrogen peroxide H ₂ O ₂ or hydroxyl radicals / OH which are active species. Since these hydrogen peroxide H ₂ O ₂ or hydroxyl radical / OH exhibits extremely strong activity, it can sterilize airborne bacteria in the air.

  According to the first embodiment, no lead wire is required for connection between the drive circuit board 2 and the ion generating element 3, and the assembly work of the ion generating apparatus 1A is simplified. By covering the upper part of the ion generator 1A with the shield cover 15 instead of the molding agent, the ion generating element 3 can be easily removed from the drive circuit board 2. As a result, since only the ion generating element 3 can be replaced, it is possible to use the ion generating apparatus 1A for a long time while replacing only the ion generating element 3 as appropriate.

  In the first embodiment, the spring contacts 21A to 21D constitute the conductive member of the present invention. However, the conductive member is not limited to one having a spring property, and a member having no spring property can be used.

  Then, the ion generator 1B which concerns on 2nd Embodiment is demonstrated using FIG. 7 and FIG. The basic configuration of the ion generator 1B is the same as that of the ion generator 1A according to the first embodiment. In the ion generator 1B, instead of the plate-like spring contacts 21A to 21D, coil spring-like spring contacts 24A to 24D are used.

  When the ion generating element 3 is attached to the drive circuit board 2 by the bezel 7A, the spring contacts 24A to 24D are sandwiched between the ion generating element 3 and the drive circuit board 2. When sandwiched from both sides, the spring contacts 24 </ b> A to 24 </ b> D press the ion generating element 3 and the drive circuit board 2 respectively by elastic force. Usually, the spring-shaped spring contacts 24A to 24D are easier to design so that the spring force is stronger than the plate-shaped spring contacts 21A to 21D. As a result, even when the spring contacts 24A to 24D are not fixed to either the ion generating element 3 or the drive circuit board 2, the spring contacts 24A to 24D are not easily displaced.

  According to the second embodiment, the assembly work of the ion generator 1B is simplified by using the spring contacts 24A to 24D. Further, the protective sheet 9 suppresses the occurrence of positional deviation of the spring contacts 24A to 24D. Here, the spring contacts 24A to 24D are directly placed on the terminals of the drive circuit board 2. However, the positions of the spring contacts 24A to 24D may be prevented by raising the periphery of the terminals with solder or the like. As another method for preventing misalignment, an engagement hole that engages with the spring contacts 24 </ b> A to 24 </ b> D in advance is formed on the upper surface of the drive circuit board 2.

  Subsequently, an ion generator 1C according to the third embodiment will be described with reference to FIG. The basic configuration of the ion generator 1C is the same as that of the ion generator 1A and the ion generator 1B. However, the ion generating device 1C has the opening molded with a molding agent such as urethane resin, and the protective sheet prevents the molding agent from flowing into the connection portion of the ion generating element, the conductive member, and the drive circuit board. Yes.

  According to the third embodiment, since the drive circuit board 2 and the ion generating element 3 can be arranged close to each other in parallel with each other, the amount of the molding agent 6 required when the ion generating apparatus 1A is assembled. Can be reduced. As a result, the wiring material cost of the ion generator 1A can be reduced.

  Then, the ion generator which concerns on 4th Embodiment is demonstrated using FIGS. 10-12. The basic configuration of the ion generator according to the fourth embodiment is the same as that of the ion generator 1B. Here, a bezel 7B is used instead of the bezel 7A.

  The bezel 7B is made of a resinous material and includes a frame portion 71B and bezel claws 73A to 73D. The frame portion 71B is different from the frame portion 71A only in material, and the other features are the same as the frame portion 71A. The bezel claws 73A to 73D extend from the frame portion 71B. Retaining portions 75A to 75D are formed at the tips of the bezel claws 73A to 73D. The retaining portions 75 </ b> A to 75 </ b> D are configured by a cut groove formed at the tip portion and two tapered hook members branched on both sides of the cut groove. Note that the two hook members have a symmetrical shape with the cut groove as the center.

  FIG. 11 is a diagram illustrating the configuration of the bezel claws 72A to 72D and the bezel claws 73A to 73D. In the bezel claws 72A to 72D shown in FIG. 11A, the bezel claws 72A to 72D cannot be removed from the bezel claw fixing holes 22A to 22D by twisting the retaining portions 74A to 74D by about 45 to 90 degrees. When the ion generating element 3 is removed, the bezel claws 72A to 72D can be easily pulled out from the bezel claw fixing holes 22A to 22D by returning the twist preventing portions 74A to 74D to the original twist.

  On the other hand, the bezel claws 73A to 73D shown in FIG. 11B are pushed out from the bezel claw fixing holes 22A to 22D by pushing the retaining portions 75A to 75D into the bezel claw fixing holes 22A to 22D. Disappear. When the ion generating element 3 is removed, the bezel 7B is pulled strongly to release the engagement between the retaining portions 74A to 74D and the bezel claw fixing holes 22A to 22D, and the bezel is removed from the bezel claw fixing holes 22A to 22D. It is possible to remove the claws 73A to 73D.

  FIG. 12 shows a state in which the bezel claws 73A to 73D are inserted into the bezel claw fixing holes 22A to 22D while the frame portion 71B and the ion generating element 3 are engaged. The retaining portions 75A to 75D that have passed through the bezel claw fixing holes 22A to 22D prevent the bezel claws 72A to 72D from coming out of the bezel claw fixing holes 22A to 22D.

  Finally, the description of the above-described embodiment is to be considered in all respects as illustrative and not restrictive. The scope of the present invention is shown not by the above-described embodiments but by the claims. Furthermore, the scope of the present invention is intended to include all modifications within the meaning and scope equivalent to the scope of the claims.

It is a figure which shows the prior art example of an ion generator. It is a figure which shows schematic structure of the ion generator which concerns on 1st Embodiment. It is a figure which shows schematic structure of the drive circuit board which concerns on 1st Embodiment. It is a figure which shows schematic structure of an ion generating element. It is a figure explaining the attachment operation | work of the ion generator with respect to a drive circuit board. It is a figure which shows the state by which the ion generating element was attached to the drive circuit board | substrate. It is a figure which shows schematic structure of the ion generator which concerns on 2nd Embodiment. It is a figure which shows schematic structure of the drive circuit board which concerns on 2nd Embodiment. It is a figure which shows schematic structure of the ion generator which concerns on 3rd Embodiment. It is a figure explaining the attachment operation | work of the ion generator with respect to the drive circuit board based on 4th Embodiment. It is explanatory drawing of the shape of a protrusion piece. It is a figure which shows the state by which the ion generating element was attached to the drive circuit board | substrate based on 4th Embodiment.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1-Ion generator 2-Drive circuit board 3-Ion generating element 4-Case 7A, 7B-Bezel 21A-21D-Conductive member 22A-22D-Bezel claw fixing hole 24A-24D-Spring

Claims (6)

An ion generating element having an electrode to which a driving voltage is applied and generating ions using the driving voltage;
A drive circuit board for generating a drive voltage to be supplied to the ion generating element;
A conductive member to be disposed between the electrode of the ion generating element and the drive circuit board;
Positioning that is detachably attached to the drive circuit board while fixing the arrangement position of the ion generation element with respect to the drive circuit board in a state where the drive circuit board and the ion generation element are stacked with the conductive member interposed therebetween. Members,
An ion generator characterized by comprising: The positioning member has a frame portion that engages with the ion generating element and a protruding piece connected to the frame portion,
The ion generator according to claim 1, wherein the drive circuit board includes a protrusion piece locking portion that locks the protrusion piece.   The protective sheet further comprising a protective sheet disposed between the ion generating element and the drive circuit board and having a notch formed at a position corresponding to a position where the conductive member is disposed. 2. The ion generator according to 2.   The ion generator according to claim 1, wherein the conductive member is fixed to the drive circuit board side.   The ion generator according to claim 1, wherein the drive circuit board has an engaging portion that engages with the conductive member.   The ion generator according to claim 1, wherein the conductive member is a spring contact having elasticity in a stacking direction of the ion generating element and the conductive member.

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