JP2005116229A - Ion generating apparatus and electric apparatus equipped with it - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an ion generating apparatus capable of weakening an electric field generated between two discharge parts, and an electric apparatus equipped with it. <P>SOLUTION: This ion generating apparatus is equipped with a first discharge part 11, a second discharge part 12, a first voltage impressing means (a rectifier diode 4, a capacitor 6, a switching element 8 for driving a transformer, a transformer 9, and a diode 13) to generate a positive ion by impressing a voltage obtained by biasing an ac impulse voltage to positive on the first discharge part 11, when a negative voltage is supplied from an input ac power supply 1, a second voltage impressing means (a rectifier diode 5, a capacitor 7, the switching element 8 for driving a transformer, a transformer 10, and a diode 14) to generate a negative ion by impressing a voltage obtained by biasing the ac impulse voltage to negative on the second discharge part 12, when a positive voltage is supplied from the input ac power supply 1. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an ion generator capable of decomposing bacteria, fungi, harmful substances, etc. floating in the air by releasing positive ions and negative ions into the space, and an electric device equipped with the same. is there. In addition, as an example applicable to the above-mentioned electrical equipment, it is mainly a closed space (inside a house, one room in a building, a hospital room or operating room, a car, an airplane, a ship, a warehouse, a refrigerator, etc.) Examples thereof include air conditioners, dehumidifiers, humidifiers, air purifiers, refrigerators, fan heaters, microwave ovens, washing / drying machines, vacuum cleaners, and sterilizers that release positive ions and negative ions.

Positive ions and negative ions are released, and positive ions H ⁺ (H ₂ O) _m and negative ions O ₂ ⁻ (H ₂ O) _n (m and n are By generating approximately the same amount of natural number), both ions surround the airborne fungi and viruses in the air, and the action of the active species hydroxyl radical (.OH) generated at that time causes the airborne fungi The inventors have already made inventions relating to ion generators that can inactivate and the like (see, for example, Patent Documents 1 and 2).

  The above-described invention has already been put into practical use by the applicant of the present application. The practical machine includes an ion generator having a structure in which a discharge electrode is disposed outside and a induction electrode is disposed on the inside, with a ceramic dielectric interposed therebetween, and this There are air cleaners and air conditioners equipped with.

  However, the ion generator that can inactivate the above-mentioned floating molds, etc., by generating both positive ions and negative ions at the same time, some of the bipolar ions are neutralized and disappeared with the generation. There was a problem of being. In view of this problem, the present inventors have made an invention relating to the ion generator shown in FIG. 3A, and a patent application relating to such an invention (Japanese Patent Application No. 2003-137098) has already been made by the present applicant.

  Hereinafter, the ion generator shown in FIG. The ion generator shown in FIG. 3A includes a rectifier diode 102, an input resistor 103, a transformer driving switching element 104, a capacitor 105, and a diode 106 as a primary circuit of a transformer 107 that receives power from an input power supply 101. Have. When the input power supply 101 is an AC commercial power supply, the capacitor 105 is charged by the voltage of the input power supply 101 via the rectifier diode 102 and the input resistor 103. When the voltage across the capacitor 105 becomes equal to or higher than the specified voltage, switching for transformer driving is performed. The element 104 is turned on, and a voltage is applied to the primary winding 107 a of the transformer 107. Immediately thereafter, the energy charged in the capacitor 105 is discharged through the primary winding 107a of the transformer 107 and the switching element 104 for driving the transformer, the voltage across the capacitor 105 returns to zero, is charged again, and is charged at a specified period. Repeat the discharge.

  Next, the secondary side circuit of the transformer 107 will be described. The secondary winding 107b of the transformer 107 is connected to the discharge electrode 108a and the induction electrode 108b of the first discharge unit 108, and the secondary winding 107c of the transformer 107 is connected to the discharge electrode 109a and the induction electrode 109b of the second discharge unit 109. Has been. When the transformer driving switching element 104 of the primary side circuit is turned on, the energy on the primary side is transmitted to the secondary windings 107b and 107c of the transformer, and an impulse voltage is applied to the secondary windings 107b and 107c of the transformer. Occur. Not only the secondary winding 107b of the transformer 107 but also the anode of the diode 110 and the cathode of the diode 111 are connected to the discharge electrode 108a. The cathode of the diode 110 is connected to one selection terminal 112a of the switching relay 112 and the diode 111. Is connected to another selection terminal 112 b of the switching relay 112. The common terminal 112 c of the switching relay 112 is connected to one side of the ground or input power supply 101. When the input power supply 101 is an AC commercial power supply, one side of the input AC commercial power supply is grounded in Japan. Therefore, an electric device without a ground terminal has the same function as grounding when connected to one side of the input power supply 101. Can be obtained. Further, not only the secondary winding 107c of the transformer but also the anode of the diode 113 is connected to the discharge electrode 109a of the second discharge unit 109, and the cathode of the diode 113 is connected to the ground or one side of the input power supply 101. .

  Next, the operating voltage waveform will be described. When the input power supply 101 is an AC commercial power supply, the voltage waveform on the side connected to the rectifier diode 102 of the input power supply 101 is as shown in FIG. In the state where no diode is connected to both ends of the secondary windings 107b and 107c of the transformer 107, an impulse waveform of an alternating voltage as shown in FIG. 3C is applied.

  By connecting the diode 113 to the secondary winding 107c, the voltage of the discharge electrode 109a and the induction electrode 109b of the second discharge unit 109 is connected to the ground terminal, and in some cases, one side of the input power source 101 (the diode 113 and the switching relay 112 are connected to each other). As shown in FIGS. 3 (f) and 3 (g), the voltage waveform with respect to the connected side) is a waveform in which the waveform of FIG. 3 (c) is negatively biased, and the second discharge unit 109. From which negative ions are generated.

  When the switching relay 112 is on the selection terminal 112b side and the secondary winding 107b is connected to the common terminal 112c via the diode 111, the voltages of the discharge electrode 108a and the induction electrode 108b of the first discharge unit 108 are grounded. In some cases, the voltage waveform with reference to one side of the input power source 101 (the side to which the diode 113 and the switching relay 112 are connected) is as shown in FIGS. 3 (d) and 3 (e). Each of the waveforms is a positively biased waveform, and positive ions are generated from the first discharge unit 108. Further, when the switching relay 112 is on the selection terminal 112a side and the secondary winding 107b is connected to the common terminal 112c via the diode 110, the voltages of the discharge electrode 108a and the induction electrode 108b of the first discharge unit 108 are changed. As shown in FIGS. 3 (f) and 3 (g), the voltage waveform with respect to the ground terminal, and in some cases, one side of the input power supply 101 (the side to which the diode 113 and the switching relay 112 are connected) is shown in FIG. ) Are negatively biased waveforms, and negative ions are generated from the first discharge unit 108.

The positive ions emitted by the ion generator of FIG. 3A are H ⁺ (H ₂ O) _m , and the negative ions are O ₂ ⁻ (H ₂ O) _n (m and n are natural numbers and H ₂ O). Meaning that there are multiple molecules).

In this way, when the selection terminal of the switching relay 112 is on the 112b side, the ions generated from the first discharge unit 108 become positive ions, and the negative ions generated from the second discharge unit 109 are plus and minus approximately the same amount. Ions are generated. H ⁺ (H ₂ O) _m and O ₂ in the air ^- by approximately the same amount releasing (H ₂ O) _n, these ions surrounds around the floating mold bacteria and viruses in the air, generated when the Can be inactivated by the action of the hydroxyl radical (.OH) of the active species.

When the selection terminal of the switching relay 112 is on the 112a side, the ions generated from the first discharge unit 108 become negative ions, and the negative ions generated from the second discharge unit 109 generate negative ions from both discharge units. To do. This operation mode is used when a large amount of negative ions is supplied to a space where there are excessive positive ions in electrical appliances at home, etc., and it is desired to maintain a balance between positive and negative ions like in a forest in nature. It is effective when seeking relaxation effects.
JP 2003-47651 A JP 2002-319472 A

  FIG. 4 shows a cross-sectional view of an ion generating element that includes the first discharge unit 108 and the second discharge unit 109. The ion generating element includes a dielectric 114 (upper dielectric 114a and lower dielectric 114b), and a first discharge unit 108 (discharge electrode 108a, induction electrode 108b, discharge electrode contact 108c, induction electrode contact 108d, connection terminals 108e and 108f. , And connection paths 108g and 108h), a second discharge portion 109 (discharge electrode 109a, induction electrode 109b, discharge electrode contact 109c, induction electrode contact 109d, connection terminals 109e and 109f, and connection paths 109g and 109h) and coating Layer 115.

  Here, when the selection terminal of the switching relay 112 is on the 112b side, the voltages shown in FIGS. 3D to 3G are applied to the discharge electrode 108a, the induction electrode 108b, the discharge electrode 109a, and the induction electrode 109b, respectively. Therefore, in addition to the electric field generated between the discharge electrode and the dielectric electrode in each discharge portion, an electric field from the discharge electrode 108a to the discharge electrode 109a and an electric field from the dielectric electrode 108b to the dielectric electrode 109b are generated.

  In the former electric field, an ion neutralization phenomenon occurs because a force attracts positive and negative ions generated from the discharge electrodes 108a and 109a to both electrodes. The latter electric field is applied from the dielectric electrode 108b toward the dielectric electrode 109b, and an electric field is applied to the inside of the dielectric 114. And, it is unlikely that bubbles are present in the dielectric substrate 114 in the manufacturing process, but if present, the electric field concentrates in the bubbles due to the difference in dielectric constant between the dielectric substrate and air, In addition, since the gas discharge start voltage is lower than the solid discharge start voltage, abnormal discharge (void discharge) occurs in the bubbles, which may cause deterioration of insulation.

  An object of this invention is to provide the ion generator which can weaken the electric field which arises between two discharge parts in view of said problem, and an electric equipment provided with the same.

  In order to achieve the above object, an ion generator according to the present invention includes a first discharge unit, a second discharge unit, and a voltage application circuit that applies a voltage to the first discharge unit and the second discharge unit. Prepare. The voltage application circuit alternately alternates with respect to the first discharge part and the second discharge part so that positive ions are generated in the first discharge part and negative ions are generated in the second discharge part. The voltage is applied.

  In order to achieve the above object, an ion generator according to the present invention includes a first discharge unit, a second discharge unit, and a voltage application circuit that applies a voltage to the first discharge unit and the second discharge unit. Prepare. The voltage application circuit alternately alternates with respect to the first discharge part and the second discharge part so that positive ions are generated in the first discharge part and negative ions are generated in the second discharge part. The voltage is applied.

  According to such a configuration, since the discharge part to which no voltage is applied is in a floating state, the electric field generated between the two discharge parts can be weakened. Therefore, it is possible to reduce the possibility of ion neutralization and void discharge in the dielectric due to the electric field generated between the two discharge portions.

  The first discharge part and the second discharge part may be provided on one dielectric substrate.

  According to such a configuration, since the first discharge part and the second discharge part can be formed in the same manufacturing process, the manufacturing cost can be reduced, and the apparatus can be made small and compact.

  Further, the voltage application circuit applies positive ions to the first discharge unit in a half cycle in which the value of the voltage supplied from the input power source is positive (or negative) to positive ions. A first voltage applying means for generating, and applying a voltage obtained by biasing an AC impulse voltage negatively to the second discharge part when the value of the voltage supplied from the input power source is a half cycle opposite to the above. It is preferable to have a configuration including a second voltage applying unit that generates negative ions.

  According to such a configuration, a voltage application circuit that alternately applies a predetermined voltage to the first discharge unit and the second discharge unit has a simple circuit configuration (for example, two transformers connected to separate discharge units). And a circuit using two rectifier diodes connected to primary sides of different transformers and having opposite connection directions.

  Further, a switch for switching between energization / cutoff between the input power supply and the first voltage applying means may be provided.

  According to such a configuration, when the switch is turned off, generation of positive ions is stopped and negative ions are generated, and negative ions are generated in a space where there is an excess of positive ions in household electrical equipment. A large amount can be supplied, and the operation mode can be set to achieve a positive and negative ion balance as in a forest in nature, or to obtain a relaxation effect. Furthermore, since the switch does not require a function of preventing erroneous firing due to high withstand voltage or high frequency, an inexpensive and small electronic switch can be used for the switch.

Moreover, the ion generating device having the above structure, the H ⁺ (H ₂ O) _m occurred as positive ions, O ₂ as negative ions _{^{- (H 2 O) n (}} m, n are natural numbers, H ₂ O molecules Means that a plurality of are attached). Thus H ⁺ (H ₂ O) _m and O ₂ in the air ^- by (H ₂ O) to generate substantially equal amounts of _n, both ions are attached to the floating bacteria in the air or the like, generated when the It becomes possible to inactivate the floating bacteria and the like by the action of the hydroxyl radical (.OH) of the activated species.

  Moreover, when the electric equipment according to the present invention is configured to include the ion generator having any one of the above-described configurations, and a sending unit (for example, a blower fan) that sends the ions generated by the ion generator into the air. Good. By adopting such a configuration, in addition to the original functions of the device, it is possible to change the amount of ions in the air and the ion balance with the installed ion generator to bring the indoor environment to a desired atmospheric state. Become.

  ADVANTAGE OF THE INVENTION According to this invention, the ion generator which can weaken the electric field produced between two discharge parts, and an electric equipment provided with the same are realizable. As a result, the neutralization phenomenon between positive ions and negative ions can be reduced, and although there is a low possibility that bubbles exist in the dielectric during the manufacturing process, abnormal discharge in the bubbles can occur if they occur. Can be reduced.

  An embodiment of the present invention will be described with reference to the drawings. One structural example of the ion generator which concerns on this invention is shown to Fig.1 (a). The ion generator shown in FIG. 1A includes two transformers 9 and 10. In addition, the ion generator shown in FIG. 1A has an input resistor 2, a switch 3, a rectifier diode 4, a rectifier diode 5, a capacitor 6, a capacitor 7, as a primary circuit of a transformer that receives power from the input power supply 1. And a transformer driving switching element 8.

  When the input power source 1 is an AC commercial power source and the side connected to the input resistor 2 of the input power source 1 has a negative potential and the switch 3 is on, the input resistor 2 and the switch 3 are driven by the voltage of the input power source 1. When the capacitor 6 is charged via the rectifier diode 4 and the voltage across the capacitor 6 becomes equal to or higher than the specified voltage, the transformer driving switching element 8 is turned on, and the voltage is applied to the primary winding 9a of the transformer 9. Is done. Immediately thereafter, the energy charged in the capacitor 6 is discharged through the primary winding 9a of the transformer 9 and the transformer driving switching element 8, the voltage across the capacitor 6 returns to zero, is charged again, and is charged at a specified period. Repeat the discharge. Further, when the input power source 1 is an AC commercial power source and the side connected to the input resistor 2 of the input power source 1 has a positive potential, the capacitor of the input power source 1 through the input resistor 2 and the rectifier diode 5 depends on the voltage of the input power source 1. 7 is charged, and when the voltage across the capacitor 7 becomes equal to or higher than the specified voltage, the transformer driving switching element 8 is turned on and a voltage is applied to the primary winding 10a of the transformer 10. Immediately after that, the energy charged in the capacitor 7 is discharged through the primary side winding 10a of the transformer 10 and the switching element 8 for driving the transformer, the voltage across the capacitor 7 returns to zero, is charged again, and is charged at a specified period. Repeat the discharge.

  Next, the secondary circuit of the transformer will be described. The secondary winding 9b of the transformer 9 is connected to the discharge electrode 11a and the induction electrode 11b of the first discharge unit 11, and the secondary winding 10b of the transformer 10 is connected to the discharge electrode 12a and the induction electrode 12b of the second discharge unit 12. Has been. When the side connected to the input resistor 2 of the input power source 1 is at a negative potential, the transformer driving switching element 8 of the primary side circuit is turned on, whereby the primary side energy is transferred to the secondary winding 9b of the transformer 9. As a result, an impulse voltage is generated in the secondary winding 9 b of the transformer 9. Further, when the side connected to the input resistor 2 of the input power source 1 is at a positive potential, the transformer driving switching element 8 of the primary side circuit is turned on, so that the energy on the primary side becomes the secondary winding of the transformer 10. 10b and an impulse voltage is generated in the secondary winding 10b of the transformer 10.

  Not only the secondary winding 9b of the transformer 9 but also the cathode of the diode 13 is connected to the discharge electrode 11a. The anode of the diode 13 is connected to one side of the ground or input power supply 1. When the input power source 1 is an AC commercial power source, one side of the input AC commercial power source is grounded in Japan. Therefore, if an electric device without a ground terminal is connected to one side of the input power source 1, it has the same function as grounding. Can be obtained. In addition, not only the secondary winding 10b of the transformer 10 but also the anode of the diode 14 is connected to the discharge electrode 12a of the second discharge unit 12, and the cathode of the diode 14 is connected to one side of the ground or the input power source 1. The

  Next, the operating voltage waveform will be described. When the input power source 1 is an AC commercial power source, the voltage waveform on the side connected to the input resistor 2 of the input power source 1 is as shown in FIG. An impulse waveform of an alternating voltage as shown in FIG. 1C is applied to both ends of the secondary winding 10b of the transformer 10 when no diode is connected. When the switch 3 is on, an impulse waveform of an alternating voltage as shown in FIG. 1F is applied to both ends of the secondary winding 9b of the transformer 9 when no diode is connected.

  By connecting the diode 14 to the secondary winding 10b, the voltage of the discharge electrode 12a and the induction electrode 12b of the second discharge unit 12 is connected to the ground terminal, and in some cases, one side of the input power source 1 (the diodes 13 and 14 are connected). 1 (d) and (e), the waveform of FIG. 1 (c) is a negatively biased waveform, as shown in FIGS. 1 (d) and 1 (e). Negative ions are generated.

  When the switch 3 is on, the voltages of the discharge electrode 11a and the induction electrode 11b of the first discharge unit 11 are grounded, and in some cases, one side of the input power source 1 (side to which the diodes 13 and 14 are connected) is used as a reference. As shown in FIGS. 10 (g) and 10 (h), the voltage waveform is a waveform in which the waveform of FIG. 1 (f) is positively biased, and positive ions are generated from the first discharge unit 11. In addition, when the switch 3 is in the OFF state, no voltage is applied to the transformer 9, so that no ions are generated from the first discharge unit 11.

The positive ions emitted from the ion generator of FIG. 1A are H ⁺ (H ₂ O) _m , and the negative ions are O ₂ ⁻ (H ₂ O) _n (m and n are natural numbers and H ₂ O). Meaning that there are multiple molecules).

Thus, when the switch 3 is on, the ions generated from the first discharge unit 11 become positive ions, and the negative ions generated from the second discharge unit 12 generate approximately the same amount of positive and negative ions. H ⁺ (H ₂ O) _m and O ₂ in the air ^- by approximately the same amount releasing (H ₂ O) _n, these ions surrounds around the floating mold bacteria and viruses in the air, generated when the Can be inactivated by the action of the hydroxyl radical (.OH) of the active species.

The above description will be described in detail. By applying an AC voltage between the electrodes constituting the first discharge part 11 and the second discharge part 12, oxygen or moisture in the air receives energy by ionization and is ionized to generate H ⁺ (H ₂ O) _m ( M is an ion mainly composed of an arbitrary natural number) and O ₂ ⁻ (H ₂ O) _n (n is an arbitrary natural number), and these are released into the space by a fan or the like. These H ⁺ (H ₂ O) _m and O ₂ ⁻ (H ₂ O) _n adhere to the surface of the floating bacteria and chemically react to generate H ₂ O ₂ or (.OH) as an active species. Since H ₂ O ₂ or (.OH) shows extremely strong activity, they can surround and inactivate airborne bacteria in the air. Here, (.OH) is one kind of active species, and represents radical OH.

Hydrogen peroxide H ₂ O ₂ or hydroxyl radical (OH), which is an active species, oxidizes or decomposes harmful substances to form chemical substances such as formaldehyde and ammonia, harmless substances such as carbon dioxide, water, and nitrogen It can be made substantially harmless by converting to.

  Accordingly, the ion generator and the blower fan shown in FIG. 1A are mounted on an electrical device, and the blower fan is driven to generate a plus generated by the ion generating element provided in the ion generator shown in FIG. Ions and negative ions can be sent out of the main body. And by the action of these positive ions and negative ions, it is possible to inactivate mold and fungi in the air and suppress their growth.

  In addition, positive ions and negative ions have a function to inactivate viruses such as Coxsackie virus and polio virus, and can prevent contamination due to contamination of these viruses.

  In addition, it has been confirmed that positive ions and negative ions have a function of decomposing molecules that cause odors, and can be used to deodorize spaces.

  Further, when the switch 3 is off, no ions are generated from the first discharge unit 9, so that ions generated from the ion generator are only negative ions generated from the second discharge unit 12. This operation mode is used to supply a large amount of negative ions to a space where there are excessive positive ions in electrical appliances at home, etc., and to maintain a balance between positive and negative ions like in a forest in nature. It is effective when seeking relaxation effects.

  In the conventional ion generator shown in FIG. 3 (a), the switch for switching between the operation mode for generating positive ions and negative ions and the operation mode for generating negative ions needs to be a two-contact switching relay. Since the location is provided in the secondary circuit of the transformer, which is a high-voltage output circuit and also a high-frequency circuit, it is necessary to use a high-voltage spec switch for the switch. On the other hand, in the ion generator according to the present invention shown in FIG. 1 (a), the switch 3 for switching between the operation mode for generating positive ions and negative ions and the operation mode for generating negative ions is provided in the primary side circuit of the transformer. Since it is provided, it does not require a function of preventing false ignition due to high breakdown voltage or high frequency. Therefore, an inexpensive and small electronic switch can be used for the switch 3.

  FIG. 2 shows a cross-sectional view of an ion generating element including the first discharge unit 11 and the second discharge unit 12. The ion generating element includes a dielectric 15 (upper dielectric 15a and lower dielectric 15b) and a first discharge unit 11 (discharge electrode 11a, induction electrode 11b, discharge electrode contact 11c, induction electrode contact 11d, connection terminals 11e, 11f. , And connection paths 11g, 11h), a second discharge portion 12 (discharge electrode 12a, induction electrode 12b, discharge electrode contact 12c, induction electrode contact 12d, connection terminals 12e, 12f, and connection paths 12g, 12h), and coating And a layer 16.

  The dielectric 15 is formed by bonding a substantially rectangular parallelepiped upper dielectric 15a and a lower dielectric 15b (for example, 15 [mm] in length × 37 [mm] in width × 0.45 [mm] in thickness). If an inorganic material is selected as the material of the dielectric 15, ceramics such as high-purity alumina, crystallized glass, forsterite, and steatite can be used. In addition, if an organic material is selected as the material of the dielectric 15, a resin such as polyimide or glass epoxy having excellent oxidation resistance is preferable. However, in view of corrosion resistance, it is desirable to select an inorganic material as the material of the dielectric 15, and in view of formability and ease of electrode formation described later, it is preferable to use ceramic. .

  Further, since it is desirable that the insulation resistance between the discharge electrodes 11a, 12a and the induction electrodes 11b, 12b is uniform, the material of the dielectric 15 is such that the density variation is small and the insulation rate is uniform. Is preferred.

  The shape of the dielectric 15 may be other than a substantially rectangular parallelepiped (such as a disk, an ellipse, or a polygon), and may be a column, but considering productivity. As in the present embodiment, it is preferable to have a flat plate shape (including a disk shape and a rectangular parallelepiped shape).

  The discharge electrodes 11a and 12a are formed integrally with the upper dielectric 15a on the surface of the upper dielectric 15a. As a material for the discharge electrodes 11a and 12a, any material can be used without particular limitation as long as it has conductivity, such as tungsten. However, it does not cause deformation such as melting by discharge.

  The induction electrodes 11b and 12b are provided in parallel with the discharge electrodes 11a and 12a with the upper dielectric 15a interposed therebetween. With this arrangement, the distance between the discharge electrodes 11a, 12a and the induction electrodes 11b, 12b (hereinafter referred to as the interelectrode distance) can be made constant, so that the insulation resistance between the two electrodes can be made uniform. It is possible to stabilize the discharge state and suitably generate positive ions and / or negative ions. In the case where the dielectric 15 is cylindrical, the discharge electrodes 11a and 12a are provided on the outer peripheral surface of the cylinder, and the induction electrodes 11b and 12b are provided in an axial shape so that the distance between the electrodes is constant. Can do.

  As the material of the induction electrodes 11b and 12b, like the discharge electrodes 11a and 12a, any material can be used without particular limitation as long as it has conductivity, such as tungsten. The condition is not to wake up.

  The discharge electrode contacts 11c and 12c are connected to the discharge electrodes 11a and 12g through the connection terminals 11e and 12e and the connection paths 11g and 12g provided on the same formation surface as the discharge electrodes 11a and 12a (that is, the surface of the upper dielectric 15a). It is electrically connected to 12a. Therefore, if one end of a lead wire (copper wire, aluminum wire, etc.) is connected to the discharge electrode contacts 11c, 12c and the other end of the lead wire is connected to the secondary winding and diode of the transformer, the discharge electrode 11a and the transformer 9 can be electrically connected to the secondary winding 9 b and the diode 13, and the discharge electrode 12 a can be electrically connected to the secondary winding 10 b and the diode 14 of the transformer 10.

  The induction electrode contacts 11d and 12d are connected to the induction electrodes 11b and 12f via the connection terminals 11f and 12f and the connection paths 11h and 12h provided on the same formation surface as the induction electrodes 11b and 12b (that is, the surface of the lower dielectric 15b). It is electrically connected to 12b. Therefore, if one end of a lead wire (such as a copper wire or an aluminum wire) is connected to the induction electrode contacts 11d and 12d and the other end of the lead wire is connected to a secondary winding and a diode of the transformer, the dielectric electrode 11b and the transformer 9 can be electrically connected to the secondary winding 9b, and the dielectric electrode 12b and the secondary winding 10b of the transformer 10 can be electrically connected to each other.

  Furthermore, it is desirable that all of the discharge electrode contacts 11c and 12c and the induction electrode contacts 11d and 12d are provided on the surface of the dielectric 15 other than the surface on which the discharge electrodes 11a and 12a are provided. With such a configuration, unnecessary lead wires or the like are not provided on the upper surface of the dielectric 15, so the ion generator shown in FIG. 1A and the air blown out to send out ions generated by the ion generator into the air. In an electric device equipped with a fan, the air flow from the blower fan (not shown) is less likely to be disturbed, and neutralization of positive ions and negative ions can be reduced.

  In consideration of the above, in the ion generating element provided in the ion generating apparatus of FIG. 1A, the discharge electrode contacts 11c and 12c and the induction electrode contacts 11d and 12d are all surfaces facing the top surface of the dielectric 15. Is provided.

  In the ion generating element of FIG. 2, the first discharge electrode 11a and the second discharge electrode 12a have an acute angle portion (not shown), and an electric field is concentrated at the portion to cause local discharge. .

  Here, when the switch 3 is on, the voltages shown in FIGS. 1D, 1E, 1G, and 1H are applied to the discharge electrode 11a, the induction electrode 11b, the discharge electrode 12a, and the induction electrode 12b, respectively. Therefore, in addition to the electric field generated between the discharge electrode and the dielectric electrode in each discharge portion, an electric field from the discharge electrode 11a to the discharge electrode 12a and an electric field from the dielectric electrode 11b to the dielectric electrode 12b are generated. However, the discharge electrode 12a is in a floating state when a positive voltage is applied to the discharge electrode 11a, and the discharge electrode 11a is in a floating state when a negative voltage is applied to the discharge electrode 12a. Compared with the ion generator of FIG. 3A in which a negative voltage is applied to the discharge electrode 109a when a voltage is applied, the electric field generated between the discharge electrodes can be weakened. In addition, the dielectric electrode 12b is in a floating state when a positive voltage is applied to the dielectric electrode 11b, and the dielectric electrode 11b is in a floating state when a negative voltage is applied to the dielectric electrode 12b. Compared with the ion generator of FIG. 3A in which a negative voltage is applied to the dielectric electrode 109b when a voltage is applied, the electric field generated between the dielectric electrodes can be weakened.

  As described above, since the electric field from the discharge electrode 11a toward the discharge electrode 12a becomes weak, for example, negative ions emitted from the discharge electrode 12a are captured by the discharge electrode 11a by the electric field from the discharge electrode 11a to the discharge electrode 12a and disappear. Such neutralization phenomenon can be reduced. Further, when the side connected to the input resistor 2 of the input power source 1 has a positive potential, negative ions are generated from the second discharge unit 12, and when the side connected to the input resistor 2 of the input power source 1 has a negative potential. Since positive ions are generated from the first discharge part 11, negative ions and positive ions are not generated simultaneously. Therefore, the ion generator according to the present invention shown in FIG. 1 (a) can reduce the neutralization phenomenon as compared with the conventional ion generator shown in FIG. 3 (a) in which negative ions and positive ions are generated simultaneously. it can.

  In addition, negative ions were generated and a large amount of negative ions were supplied to the space where there was an excess of positive ions in household electrical equipment, etc., and a positive and negative ion balance like in a forest in nature was achieved. When the operation mode for obtaining the state or obtaining the relaxation effect is not necessary, the switch 3 may be not provided.

  In addition, since the electric field from the dielectric electrode 11b to the dielectric electrode 12b becomes weak, even if bubbles exist in the dielectric 114, abnormal discharge occurs in the bubbles due to the difference in dielectric constant between the dielectric 114 and air. The possibility of occurrence can be reduced, and the possibility of causing deterioration of insulation can be reduced.

  The ion generator according to the present invention described above may be mounted on an electrical device such as an air conditioner, a dehumidifier, a humidifier, an air cleaner, a refrigerator, a fan heater, a microwave oven, a washing dryer, a vacuum cleaner, or a sterilizer. . And it is good to equip such an electric equipment with the sending means (for example, ventilation fan) which sends out the ion which generate | occur | produced with the ion generator in the air. In such an electric device, in addition to the original function of the device, the ion generation device and the ion balance in the air can be changed by the mounted ion generator, and the indoor environment can be brought into a desired atmosphere state.

  In the above embodiment, an example of a configuration in which positive ions and negative ions are individually generated by a single ion generating element having a plurality of discharge units that generate ions, and each is independently released into the room. However, the configuration of the present invention is not limited to this, and a configuration in which positive ions and negative ions are individually generated by a plurality of ion generating elements and each is independently released into the room. It does not matter.

These are figures which show one structural example and each part voltage waveform of the ion generator of this invention. These are sectional drawings of the ion generating element provided in the ion generator of FIG. These are the figure which shows the example of 1 structure of the conventional ion generator, and each part voltage waveform. These are sectional drawings of the ion generating element provided in the ion generator of FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Input power supply 2 Input resistance 3 Switch 4, 5 Rectifier diode 6, 7 Capacitor 8 Switching element 9 for transformer drive 9, 10 Transformer 11 1st discharge part 12 2nd discharge part 13, 14 Diode 15 Dielectric

Claims (6)

A first discharge unit, a second discharge unit, and a voltage application circuit for applying a voltage to the first discharge unit and the second discharge unit,
The voltage application circuit alternately applies a predetermined voltage to the first discharge unit and the second discharge unit so that positive ions are generated in the first discharge unit and negative ions are generated in the second discharge unit. An ion generator characterized by performing application.   The ion generator according to claim 1, wherein the first discharge unit and the second discharge unit are provided on one base material.   The voltage application circuit applies positive ion bias voltage to the first discharge unit when the value of the voltage supplied from the input power supply is a positive (or negative) half cycle. A first voltage applying means for generating a voltage, and a voltage obtained by biasing an AC impulse voltage negatively to the second discharge part when a value of a voltage supplied from the input power supply is a half cycle opposite to the above. The ion generator according to claim 1, further comprising: a second voltage applying unit that generates negative ions.   The ion generator of Claim 3 provided with the switch which switches electricity supply / cutoff with the said input power supply and a said 1st voltage application means. The ion generation according to claim 1, wherein the positive ion is H ⁺ (H ₂ O) _m and the negative ion is O ₂ ⁻ (H ₂ O) _n (m and n are natural numbers). apparatus. An electric device comprising: the ion generator according to any one of claims 1 to 5; and a sending unit that sends out ions generated by the ion generator into the air.

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