CN113922214A - Discharge device - Google Patents
Discharge device Download PDFInfo
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- CN113922214A CN113922214A CN202110750420.1A CN202110750420A CN113922214A CN 113922214 A CN113922214 A CN 113922214A CN 202110750420 A CN202110750420 A CN 202110750420A CN 113922214 A CN113922214 A CN 113922214A
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- pair
- wall portion
- flat plate
- electrode
- discharge device
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T23/00—Apparatus for generating ions to be introduced into non-enclosed gases, e.g. into the atmosphere
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01T—SPARK GAPS; OVERVOLTAGE ARRESTERS USING SPARK GAPS; SPARKING PLUGS; CORONA DEVICES; GENERATING IONS TO BE INTRODUCED INTO NON-ENCLOSED GASES
- H01T19/00—Devices providing for corona discharge
- H01T19/04—Devices providing for corona discharge having pointed electrodes
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Abstract
The invention provides a discharge device. The discharge device includes a pair of electrodes, an electrode substrate, and a cover. A pair of electrodes is discharged by applying a voltage. The electrode substrate is provided with a pair of electrodes. The cover portion is opposed to the electrode substrate. A part of each of the pair of electrodes penetrates the cover portion. There is no circuit board on which a circuit is formed between the electrode board and the cover. The cover portion includes a main body portion and a pair of openings arranged in the main body portion. A pair of electrodes respectively pass through the pair of openings. The main body portion has a wall portion extending in a direction intersecting the electrode substrate. The wall portion is disposed between the pair of openings.
Description
Technical Field
The present invention relates to a discharge device.
Background
A certain discharge device includes a case, a substrate, a discharge generating portion, and an insulating resin. The housing is used for accommodating the substrate. One side of the shell is open. The substrate is provided with a discharge generating portion. The discharge generating section has a pair of needle electrodes. The pair of needle electrodes has a proximal end portion and a distal end portion provided on the substrate. The tip portion protrudes from the insulating resin. The insulating resin covers the substrate and seals the opening.
However, in some ozone generating apparatus, accumulation of dust or the like between the electrodes cannot be suppressed. That is, there is a possibility that a leakage path of the current is formed by dust or the like. Therefore, it is difficult to suppress leakage of current.
Disclosure of Invention
Technical problem to be solved by the invention
The present invention has been made in view of the above problems, and an object thereof is to provide a discharge device capable of suppressing leakage of current.
Technical solution for solving technical problem
According to one aspect of the present invention, a discharge device includes a pair of electrodes, an electrode substrate, and a cover. The pair of electrodes is discharged by applying a voltage. The electrode substrate is provided with the pair of electrodes. The cover portion is opposite to the electrode substrate. A part of each of the pair of electrodes penetrates the cover portion. There is no circuit board on which a circuit is formed between the electrode substrate and the cover portion.
According to another aspect of the present invention, a discharge device includes a pair of electrodes, an electrode substrate, and a cover. The pair of electrodes is discharged by applying a voltage. The electrode substrate is provided with the pair of electrodes. The cover portion is opposite to the electrode substrate. The cover portion includes a main body portion and a pair of openings disposed in the main body portion. The pair of electrodes is inserted through the pair of openings, respectively. The main body portion has an outer wall portion surrounding a pair of electrodes. The outer wall portion faces the pair of electrodes in a direction intersecting a direction in which the electrode substrate extends. There is no circuit board on which a circuit is formed between the electrode substrate and the cover portion.
According to another aspect of the present invention, a discharge device includes an electrode, an electrode substrate, and a cover. The electrodes are discharged by applying a voltage. The electrode substrate is provided with the electrode. The cover portion is opposite to the electrode substrate. A portion of each of the electrodes extends through the cover portion. There is no circuit board on which a circuit is formed between the electrode substrate and the cover portion.
According to the discharge device of the present invention, leakage of current can be suppressed.
Drawings
Fig. 1 is a diagram showing a discharge device according to a first embodiment of the present invention.
Fig. 2 is a view showing a section II-II of the discharge device shown in fig. 1.
Fig. 3 is a diagram showing a discharge device according to a first modification of the first embodiment.
Fig. 4 is a diagram showing a discharge device according to a second modification of the first embodiment.
Fig. 5 is a diagram showing a discharge device according to a third modification of the first embodiment.
Fig. 6 is a diagram showing a discharge device according to a fourth modification of the first embodiment.
Fig. 7 is a diagram showing a discharge device according to a fifth modification of the first embodiment.
Fig. 8 is a diagram showing a discharge device according to a sixth modification of the first embodiment.
Fig. 9 is a diagram showing a discharge device according to a seventh modification of the first embodiment.
Fig. 10 is a diagram showing a discharge device according to an eighth modification of the first embodiment.
Fig. 11 is a diagram showing a discharge device according to a ninth modification of the first embodiment.
Detailed Description
Embodiments of the present invention will be described below with reference to the drawings.
In the drawings, the same or corresponding portions are denoted by the same reference numerals, and description thereof will not be repeated.
[ first embodiment ]
A discharge device 100 according to a first embodiment of the present invention is described with reference to fig. 1 and 2. First, referring to fig. 1, a discharge device 100 according to a first embodiment will be described. Fig. 1 is a diagram illustrating a discharge device 100 according to a first embodiment. The discharge device 100 discharges and generates active radicals. The active group contains an ion.
The discharge device 100 includes a plurality of electrodes 19, a housing portion 1, and a cover portion 2. The plurality of electrodes 19 are discharged by being applied with a voltage. The plurality of electrodes 19 are, for example, two electrodes 19. That is, the plurality of electrodes 19 is, for example, a pair of electrodes 19. A part of each of the pair of electrodes 19 penetrates the cover 2.
The pair of electrodes 19 are, for example, needle-shaped or brush-shaped electrodes. A pair of electrodes 19 to which a high voltage is applied generates corona. That is, the pair of electrodes 19 are discharged to generate ions.
For example, one electrode 19 of the pair of electrodes 19 discharges positive ions by electric discharge. The positive ion is in the hydrogen ion (H)+) Cluster ion (H) formed by clustering a plurality of water molecules around (A)+(H2O)m(m is any positive number not less than zero)). Also, for example, the other electrode 19 of the pair of electrodes 19 discharges negative ions by electric discharge. The negative ion is oxygen ion (O)2-) Cluster ion (O) formed by clustering a plurality of water molecules around (A)2-(H2O)n(n is an arbitrary positive number equal to or greater than zero)).
In the case of releasing positive ions and negative ions, the larger the interval between the electrode 19 for releasing positive ions and the electrode 19 for releasing negative ions, the more the amount of ions released from the respective electrodes 19 increases.
The released positive and negative ions, respectively, for example, surround mold floating in the air, causing chemical reactions on the surface of the mold. The hydroxyl radical (. OH) of the active group is generated by a chemical reaction. Further, the mold is removed by the action of hydroxyl radical (. OH).
The housing portion 1 houses a part of the pair of electrodes 19. The storage unit 1 is a box-shaped case. The housing portion 1 has insulation properties. The housing portion 1 is formed of, for example, resin.
The cover 2 covers a portion of the housing 1 where the pair of electrodes 19 are arranged. The cover 2 has insulation properties. The cover 2 is formed of, for example, resin.
Next, the discharge device 100 will be described in detail with reference to fig. 2. Fig. 2 is a view showing a section II-II of the discharge device 100 shown in fig. 1. As shown in fig. 2, the discharge device 100 further includes an electrode substrate 5, a circuit substrate 6, an electronic component 7, a transformer 8, and a sealing material 9.
As shown in fig. 2, the housing 1 houses the electrode substrate 5, the circuit substrate 6, the electronic component 7, the transformer 8, and the sealing material 9. The housing portion 1 has a box shape with an opening 13. The housing portion 1 has a side wall 11 and a bottom wall 12.
The bottom wall portion 12 supports the side wall portion 11. The transformer 8 and the electronic component 7 are disposed on the bottom wall portion 12. The side wall 11 surrounds the bottom wall 12. The side wall 11 extends from the bottom wall 12 toward the opening 13.
The electrode substrate 5 is provided with a pair of electrodes 19. The electrode substrate 5 is electrically connected to the pair of electrodes 19. The electrode substrate 5 is a so-called printed substrate. The electrode substrate 5 is disposed on the opening 13 side of the circuit substrate 6. The electrode substrate 5 is connected to the transformer 8 through a lead wire.
A circuit is formed on the circuit substrate 6. Specifically, the circuit board 6 is formed with a circuit for electrically connecting the electrode board 5, the transformer 8, and the electronic component 7. More specifically, the circuit board 6 is electrically connected to the electrode substrate 5, the transformer 8, and the electronic component 7 via leads. The circuit board 6 is disposed between the electronic component 7 and the electrode substrate 5.
The electronic component 7 includes a power supply terminal, a diode, a resistance element, a transistor, a capacitor, and the like. The power supply terminal is connected to an external power supply via a lead.
The transformer 8 boosts the voltage applied to the pair of electrodes 19.
The sealing material 9 is, for example, a urethane resin or an epoxy resin. The sealing material 9 is cured with the passage of time, for example. Further, for example, the sealing material 9 is cured by temperature (heat) or light (ultraviolet rays).
As shown in fig. 2, the cap 2 faces the electrode substrate 5. In addition, the circuit substrate 6 is not present in the space a between the electrode substrate 5 and the hood 2. For example, dust can be prevented from accumulating between the electrode substrate 5 and the cover 2 and the circuit board 6. Therefore, accumulation of dust and the like between the electrodes 19 can be suppressed. That is, the formation of a leakage path of current can be suppressed. The leakage path indicates a path of leakage current leaking to a portion passing through the electronic circuit-like insulation. As a result, it is possible to suppress an undesired current leakage in the circuit due to dust or the like accumulated between the electrodes 19 and 19.
The cover 2 covers the opening 13 of the housing 1. The hood 2 includes a main body 21 and a pair of openings 20. A pair of electrodes 19 pass through a pair of openings 20, respectively.
The main body 21 faces the electrode substrate 5. Specifically, the main body 21 faces the electrode substrate 5 in a state of being separated from the electrode substrate 5.
The main body portion 21 has a wall portion 3 extending in a crossing direction PD1 crossing the electrode substrate 5. The wall portion 3 is disposed between the pair of openings 20. In other words, the wall portion 3 is disposed between the electrodes 19 and 19. Therefore, the distance from the electrode 19 to the surface of the body portion 21 of the electrode 19 is increased by the wall portion 3. Therefore, it takes a long time for a substance having a reduced insulating property to adhere to the main body 21 and form a leakage path of current from the electrode 19 to the electrode 19. As a result, the time until the leak path is formed can be delayed. The wall portion 3 may be formed integrally with the body portion 21. The wall portion 3 may be attached to the body portion 21 from behind.
Ions generated by the electrodes to which a high voltage is applied react with water molecules in the air, thereby generating ammonium nitrate, for example. Ammonium nitrate has water-absorbing properties. Ammonium nitrate may adhere to the structure around the electrode. Since ammonium nitrate has high water absorption, moisture conducts current when moisture in the air is contained. That is, ammonium nitrate adheres to the structure formed of the insulator, and the insulating performance of the structure is lowered. Further, ammonium nitrate may be further deposited between the electrodes to form a leakage path of current. When a leakage path of current is formed, it is difficult for the discharge device to stably generate ions. However, in the discharge device 100 of the present embodiment, since the wall portion 3 is formed in the main body portion 21, the distance along the surface of the main body portion 21 from the electrode 19 to the electrode 19 becomes long. Therefore, a long time is required before the leakage path of the current is formed. As a result, the period in which ions can be stably generated can be extended.
As shown in fig. 2, the main body 21 further includes a flat plate portion 22. The flat plate portion 22 extends in the extending direction PD 2. The extending direction PD2 indicates a direction along the electrode substrate 5. That is, the flat plate portion 22 extends along the electrode substrate 5.
Further, the wall portion 3 includes a first wall portion 31. As shown in fig. 2, the first wall portion 31 is disposed on the flat plate portion 22 and extends in the first direction D1. The first direction D1 indicates a direction from the electrode substrate 5 toward the flat plate portion 22. That is, the distance along the first direction D1 from the electrode 19 to the surface of the body portion 21 of the electrode 19 is longer by the first wall portion 31. Therefore, when a substance having a reduced insulating property is attached to the main body 21, a leakage path of current can be formed between the electrode 19 and the electrode 19. As a result, the period in which ions can be stably generated can be extended.
(first modification)
Next, a first modification of the discharge device 100 according to the first embodiment will be described with reference to fig. 3. In the first modification, the arrangement of the wall portion 3 is mainly different from that of the first embodiment. The following describes a point of difference between the first modified example and the present embodiment.
Fig. 3 is a diagram showing a discharge device 100 according to a first modification of the first embodiment. The wall part 3 comprises a second wall part 32. The second wall portion 32 is disposed on the flat plate portion 22. As shown in fig. 3, the second wall portion 32 extends in a second direction D2. The second direction D2 indicates a direction from the flat plate portion 22 toward the electrode substrate 5. Therefore, the distance along the second direction D2 from the electrode 19 to the surface of the body portion 21 of the electrode 19 is longer by the second wall portion 32. That is, when a substance having a reduced insulating property adheres to the main body 21, a leakage path of current can be formed between the electrode 19 and the electrode 19. As a result, the period in which ions can be stably generated can be extended.
The second wall portion 32 of the first modification extends from the flat plate portion 22 to abut against the electrode substrate 5. Therefore, the second wall portion 32 divides the space a into a space on the one electrode 19 side and a space on the other electrode 19 side. As a result, a leakage path of current can be suppressed from being formed between the electrode 19 and the electrode 19 in the space a between the cover 2 and the electrode substrate 5.
(second modification)
Next, a second modification of the discharge device 100 according to the first embodiment will be described with reference to fig. 4. In the second modification, the arrangement of the wall portion 3 is mainly different from that of the first embodiment. The following describes a point of difference between the second modification and the present embodiment.
Fig. 4 is a diagram showing a discharge device 100 according to a second modification of the first embodiment. As shown in fig. 4, the wall portion 3 of the body portion 21 of the second modification includes a pair of wall portions 3 extending toward the second direction D2 side. The pair of wall portions 3 has a third wall portion 33 and a fourth wall portion 34.
The third wall portion 33 extends from the flat plate portion 22 toward the second direction D2. The third wall portion 33 corresponds to an example of "one wall portion". The third wall portion 33 has an end 33A on the first direction D1 side and an end 33B on the second direction D2 side.
The fourth wall portion 34 extends from the flat plate portion 22 toward the second direction D2. The fourth wall portion 34 is opposed to the third wall portion 33. The fourth wall portion 34 corresponds to an example of "another wall portion". The fourth wall 34 has an end 34A on the first direction D1 side and an end 34B on the second direction D2 side.
The flat plate portion 22 has a first flat plate portion 221, a second flat plate portion 222, and a third flat plate portion 223. The first flat plate portion 221 extends along the extending direction PD 2. The first flat plate portion 221 is disposed on the third direction D3 side of the third wall portion 33. The third direction D3 represents a direction from the fourth wall portion 34 toward the third wall portion 33.
The first flat plate portion 221 extends from one opening 20 of the pair of openings 20 toward the end portion 33A of the third wall portion 33 on the first direction D1 side. Specifically, the first flat plate portion 221 extends from the opening 20 on the third direction D3 side to the end portion 33A of the third wall portion 33.
The second flat plate portion 222 extends along the extending direction PD 2. The second flat plate portion 222 is disposed on the fourth direction D4 side of the fourth wall portion 34. The fourth direction D4 indicates a direction from the third wall portion 33 toward the fourth wall portion 34.
The second flat plate portion 222 extends from the other opening 20 of the pair of openings 20 toward the end portion 34A of the fourth wall portion 34 on the first direction D1 side. Specifically, the second flat plate portion 222 extends from the opening 20 on the fourth direction D4 side to the end 34A of the fourth wall portion 34.
The third flat plate portion 223 extends in the extension setting direction PD 2. Specifically, the third flat plate portion 223 extends from the third wall portion 33 to the fourth wall portion 34. More specifically, the third flat plate portion 223 extends from the end 33B of the third wall portion 33 in the second direction D2 to the end 34B of the fourth wall portion 34 in the second direction D2.
That is, the flat plate portion 22 is formed with a recess. The height of the first flat plate part 221 in the intersecting direction PD1 is different from the height of the third flat plate part 223 in the intersecting direction PD 1. Further, the height of the second flat plate portion 222 in the intersecting direction PD1 is different from the height of the third flat plate portion 223 in the intersecting direction PD 1. Therefore, the distance along the surface of the body portion 21 of the electrode 19 in the first direction D1 from the electrode 19 becomes longer. Further, the distance along the surface of the body portion 21 of the electrode 19 in the second direction D2 from the electrode 19 becomes longer. Therefore, when a substance having a reduced insulating property is attached to the main body 21, a leakage path of current can be formed between the electrode 19 and the electrode 19. As a result, the period in which ions can be stably generated can be extended.
(third modification)
Next, a third modification of the discharge device 100 according to the first embodiment will be described with reference to fig. 5. The discharge device 100 according to the third modification is mainly different from the first embodiment, the first modification, and the second modification in the shape of the wall portion 3. Differences of the discharge device 100 according to the third modification from the first embodiment, the first modification, and the second modification will be described below.
Fig. 5 is a diagram showing a discharge device 100 according to a third modification. As shown in fig. 5, the wall portion 3 of the body portion 21 of the third modification has a cylindrical shape. That is, the wall portion 3 includes a cylindrical fifth wall portion 35. Specifically, the wall portion 3 includes a pair of fifth wall portions 35. The pair of fifth wall portions 35 surround the periphery of the electrode 19. The pair of fifth wall portions 35 are, for example, cylindrical.
The pair of fifth wall portions 35 extends in the intersecting direction PD 1. Specifically, the fifth wall portion 35 extends in the first direction D1 and the second direction D2. That is, the fifth wall portion 35 suppresses adhesion of a substance having water-absorbing property such as ammonium nitrate to the flat plate portion 22 and the electrode substrate 5. Therefore, the fifth wall 35 can suppress the formation of a leakage path of current in the electrode substrate 5. As a result, ions can be stably generated.
Further, the pair of fifth wall portions 35 have an end portion 35A on the first direction D1 side and an end portion 35B on the second direction D2 side, respectively. Specifically, the fifth wall portion 35 has the first opening 20A on the first direction D1 side. Further, the fifth wall portion 35 has a second opening 20B on the second direction D2 side. The second opening 20B is opposed to the electrode substrate 5.
The flat plate portion 22 is disposed between the end 35A on the first direction D1 side and the end 35B on the second direction D2 side. That is, the fifth wall portion 35 is provided extending in the first direction D1 and the second direction D2.
(fourth modification)
Next, a fourth modification of the discharge device 100 according to the first embodiment will be described with reference to fig. 6. The discharge device 100 according to the fourth modification is mainly different from the first embodiment, the first modification, the second modification, and the third modification in the shape of the wall portion 3. Differences of the discharge device 100 according to the fourth modification from the first embodiment, the first modification, the second modification, and the third modification will be described below.
Fig. 6 is a diagram showing a discharge device 100 according to a fourth modification. As shown in fig. 6, the wall portion 3 of the body portion 21 of the fourth modification has a cylindrical shape. That is, the wall portion 3 includes the cylindrical sixth wall portion 36. Specifically, the wall portion 3 includes a pair of sixth wall portions 36. The pair of sixth wall portions 36 surround the periphery of the electrode 19. The pair of sixth wall portions 36 has, for example, a cylindrical shape.
Further, the sixth wall portion 36 has an end 36A on the first direction D1 side and an end 36B on the second direction D2 side. Specifically, the sixth wall portion 36 has the first opening 20A on the first direction D1 side. Further, the sixth wall portion 36 has a second opening 20B on the second direction D2 side. The second opening 20B is opposed to the electrode substrate 5.
Further, the inner diameter of the cylindrical shape of the sixth wall portion 36 increases as the sixth wall portion 36 faces the end portion 36A of the electrode 19 on the first direction D1 side. Therefore, the distance between the electrode 19 and the sixth wall 36 is prevented from increasing, and dust can be prevented from accumulating between the electrode 19 and the sixth wall 36. As a result, the dust between the electrode 19 and the sixth wall 36 can be prevented from becoming a leakage path.
Specifically, as shown in fig. 6, the inner diameter of the first opening 20A is the inner diameter LA. On the other hand, the inner diameter of the second opening 20B is the inner diameter LB. The inner diameter LA of the first opening 20A is larger than the inner diameter LB of the second opening 20B.
Further, the portion of the sixth wall portion 36 extending in the first direction D1 from the flat plate portion 22 may have an inner diameter that increases as it goes from the flat plate portion 22 to the first opening 20A. Therefore, the distance between the electrode 19 and the sixth wall 36 is prevented from increasing, and dust can be prevented from accumulating between the electrode 19 and the sixth wall 36. As a result, the dust between the electrode 19 and the sixth wall 36 can be prevented from becoming a leakage path. Further, the inner diameter of the portion of the sixth wall portion 36 from the flat plate portion 22 toward the second opening 20B is constant.
(fifth modification)
Next, a fifth modification of the discharge device 100 according to the first embodiment will be described with reference to fig. 7. The discharge device 100 of the fifth modification mainly differs in that it includes the first wall portion 31 of the first embodiment, the second wall portion 32 of the first modification, the third wall portion 33 and the fourth wall portion 34 of the second modification, the fifth wall portion 35 of the third modification, and the sixth wall portion 36 of the fourth modification. Differences of the discharge device 100 according to the fifth modification from the first embodiment, the first modification, the second modification, the third modification, and the fourth modification will be described below.
Fig. 7 is a diagram showing a discharge device 100 according to a fifth modification of the first embodiment. The hood 2 includes a main body 21 and a pair of openings 20. A pair of electrodes 19 pass through a pair of openings 20, respectively. The main body 21 has a plurality of wall portions 3 and flat plate portions 22. The plurality of wall portions 3 includes a first wall portion 31, a second wall portion 32, a third wall portion 33, a fourth wall portion 34, a fifth wall portion 35, and a sixth wall portion 36. The flat plate portion 22 includes a first flat plate portion 221, a second flat plate portion 222, and a third flat plate portion 223.
The first flat plate portion 221 of the fifth modification extends from the sixth wall portion 36 to the third wall portion 33. Specifically, the first flat plate portion 221 extends from between the end portion 36A and the end portion 36B of the sixth wall portion 36 in the third direction D3 to the end portion 33A of the third wall portion 33.
The second flat plate portion 222 of the fifth modification extends from the fifth wall portion 35 to the fourth wall portion 34. Specifically, the second flat plate portion 222 extends from between the end portion 35A and the end portion 35B of the fifth wall portion 35 in the fourth direction D4 to the end portion 34A of the fourth wall portion 34.
The third flat plate portion 223 of the fifth modification extends from the third wall portion 33 to the fourth wall portion 34. Specifically, the third flat plate portion 223 extends from the end 33B of the third wall portion 33 in the second direction D2 to the end 34B of the fourth wall portion 34 in the second direction D2.
The first wall portion 31 of the fifth modification is disposed on the second flat plate portion 222 and extends in the first direction D1. The first wall portion 31 is disposed between the fourth wall portion 34 and the fifth wall portion 35. Therefore, when a substance having a decreased insulating property is attached to the second flat plate portion 222, a leakage path for current formed from the electrode 19 on the fourth direction D4 side to the electrode 19 on the third direction D3 side can be decreased. As a result, ions can be stably generated.
The second wall portion 32 of the fifth modification is disposed on the third flat plate portion 223, and extends from the third flat plate portion 223 in the second direction D2. Specifically, the second wall portion 32 extends from the third flat plate portion 223 to abut against the electrode substrate 5. Therefore, the second wall portion 32 divides the space a into a space on the third direction D3 side and a space on the fourth direction D4 side. As a result, in the space a between the cup portion 2 and the electrode substrate 5, a leakage path of current can be suppressed from being formed between the electrode 19 in the third direction D3 and the electrode 19 in the fourth direction D4.
The second wall portion 32 may extend from the end portion 33B of the third wall portion 33. That is, the second wall portion 32 is continuous with the third wall portion 33. In other words, the second wall portion 32 may be disposed at a position overlapping the third wall portion 33 in the first direction D1. The second wall portion 32 may extend from an end portion 34B of the fourth wall portion 34. That is, the second wall portion 32 is continuous with the fourth wall portion 34. In other words, the second wall portion 32 may be disposed at a position overlapping the fourth wall portion 34 in the first direction D1.
The third wall portion 33 of the fifth modification extends from the flat plate portion 22 in the second direction D2. Specifically, the third wall portion 33 extends from the first flat plate portion 221 toward the second direction D2. More specifically, the third wall portion 33 extends from the first flat plate portion 221 to the third flat plate portion 223.
The fourth wall portion 34 of the fifth modification extends from the flat plate portion 22 in the second direction D2. The fourth wall portion 34 is opposed to the third wall portion 33. Specifically, the fourth wall portion 34 extends from the second flat plate portion 222 toward the second direction D2. More specifically, the fourth wall portion 34 extends from the second flat plate portion 222 to the third flat plate portion 223.
The third wall 33, the fourth wall 34, the first flat plate 221, the second flat plate 222, and the third flat plate 223 form a recess in the main body 21. That is, the distance along the surface on the first direction D1 side of the main body portion 21 from the electrode 19 of the third direction D3 to the electrode 19 of the fourth direction D4 becomes longer. Further, the distance along the surface on the second direction D2 side of the main body portion 21 from the electrode 19 of the third direction D3 to the electrode 19 of the fourth direction D4 becomes longer. Therefore, when a substance having a decreased insulating property is attached to the main body 21, a leakage path of current can be delayed from the electrode 19 in the third direction D3 to the electrode 19 in the fourth direction D4. As a result, the period in which ions can be stably generated can be extended.
The fifth wall portion 35 of the fifth modification extends in the intersecting direction PD 1. Specifically, the fifth wall portion 35 extends in the first direction D1 and the second direction D2. That is, the fifth wall portion 35 suppresses adhesion of a substance having water-absorbing property such as ammonium nitrate to the second flat plate portion 222 and the electrode substrate 5. Therefore, the fifth wall 35 can suppress the formation of a leakage path of current in the cover 2 and the electrode substrate 5. As a result, ions can be stably generated.
The sixth wall portion 36 of the fifth modification extends in the first direction D1 and the second direction D2. Specifically, the inner diameter of the cylindrical shape of the sixth wall portion 36 increases as the sixth wall portion 36 faces the end portion 36A of the electrode 19 on the first direction D1 side. Therefore, the distance between the electrode 19 and the sixth wall 36 is prevented from increasing, and dust can be prevented from accumulating between the electrode 19 and the sixth wall 36. As a result, the dust between the electrode 19 and the sixth wall 36 can be prevented from becoming a leakage path.
The discharge device 100 according to the fifth modification includes a first wall portion 31, a second wall portion 32, a third wall portion 33, a fourth wall portion 34, a fifth wall portion 35, and a sixth wall portion 36. Therefore, the formation of a leakage path of current between the electrode 19 and the electrode 19 can be delayed while suppressing the formation of a leakage path of current between the cover 2 and the electrode substrate 5. As a result, the period in which ions can be generated more stably can be extended.
(sixth modification)
Next, a sixth modification of the discharge device 100 according to the first embodiment will be described with reference to fig. 8. The discharge device 100 of the sixth modification mainly differs in having an outer wall portion 37. Differences of the discharge device 100 according to the sixth modification from the first embodiment, the first modification, the second modification, the third modification, and the fifth modification will be described below.
Fig. 8 is a diagram showing a discharge device 100 according to a sixth modification. The cover portion 2 of the sixth modification includes a main body portion 21 and a pair of openings 20. A pair of electrodes 19 pass through a pair of openings 20, respectively. The main body 21 has an outer wall 37 and a flat plate 22.
The outer wall portion 37 surrounds the pair of electrodes 19. The outer wall portion 37 faces the electrode 19 in a direction intersecting the direction in which the electrode substrate 5 extends. Therefore, when the discharge device 100 is mounted on the device, a substance having water-absorbing property such as ammonium nitrate is prevented from adhering to the device other than the discharge device 100. As a result, the formation of a leakage path to the circuit board of the device on which the discharge device 100 is mounted can be suppressed.
Further, specifically, the outer wall portion 37 extends in the first direction D1. Further, the outer wall portion 37 is formed outside the flat plate portion 22. That is, the outer wall portion 37 is disposed between the flat plate portion 22 and the housing portion 1. Therefore, the periphery of the flat plate portion 22 of the outer wall portion 37 is surrounded.
(seventh modification)
Next, a seventh modification of the discharge device 100 according to the first embodiment will be described with reference to fig. 9. The discharge device 100 according to the seventh modification differs from the first embodiment, the first modification, the second modification, the third modification, the fourth modification, the fifth modification, and the sixth modification in the shape of the flat plate portion 22. Differences of the discharge device 100 according to the seventh modification from the first embodiment, the first modification, the second modification, the third modification, the fourth modification, the fifth modification, and the sixth modification will be described below.
Fig. 9 is a diagram showing a discharge device 100 according to a seventh modification. The discharge device 100 of the seventh modification includes a plurality of electrodes 19, a housing portion 1, and a cover portion 2. The electrode 19 is discharged by applying a voltage. The housing portion 1 houses a part of the pair of electrodes 19, the electrode substrate 5, the circuit substrate 6, the electronic component 7, the transformer 8, and the sealing material 9. The cover 2 covers a portion of the housing 1 where the pair of electrodes 19 are arranged.
The hood 2 includes a main body 21 and a pair of openings 20. A pair of electrodes 19 pass through a pair of openings 20, respectively.
The main body 21 faces the electrode substrate 5 in a state of being separated from the electrode substrate 5. The main body 21 has a flat plate portion 22. The flat plate portion 22 extends in the extending direction PD 2.
The flat plate portion 22 has a wave shape. Specifically, the flat plate portion 22 has a wave shape and is disposed at a portion between the pair of openings 20 in the flat plate portion 22. That is, the distance along the surface of the flat plate portion 22 from one opening 20 to the other opening 20 is longer than the flat plate portion that is not formed in the wave shape. Therefore, it takes time until the leak path is formed. Therefore, the formation of a leakage path of current from the electrode 19 to the electrode 19 can be delayed. As a result, the period in which ions can be stably generated can be extended.
(eighth modification)
Next, an eighth modification of the discharge device 100 according to the first embodiment will be described with reference to fig. 10. The discharge device 100 according to the eighth modification is mainly different from the first embodiment, the first modification, the second modification, the third modification, the fourth modification, the fifth modification, the sixth modification, and the seventh modification in the shape of the wall portion 3. Differences between the discharge device 100 of the eighth modification and the first embodiment, the first modification, the second modification, the third modification, the fourth modification, the fifth modification, the sixth modification, and the seventh modification will be described below.
Fig. 10 is a diagram showing a discharge device 100 according to an eighth modification. As shown in fig. 8, the wall portion 3 of the body portion 21 of the eighth modification has a cylindrical shape. That is, the wall portion 3 includes a cylindrical seventh wall portion 38. Specifically, the wall portion 3 includes a pair of seventh wall portions 38. The pair of seventh wall portions 38 surround the periphery of the electrode 19. The pair of seventh wall portions 38 are, for example, cylindrical.
The pair of seventh wall portions 38 extends in the intersecting direction PD 1. Specifically, the seventh wall portion 38 extends in the first direction D1. More specifically, the seventh wall portion 38 extends from the flat plate portion 22 in the first direction D1. In other words, the wall portion 3 is not disposed in the space a between the cover portion 2 and the electrode substrate 5. That is, the seventh wall portion 38 suppresses adhesion of a substance having water-absorbing property such as ammonium nitrate to the flat plate portion 22. Therefore, the seventh wall portion 38 can suppress the formation of a leakage path of current in the flat plate portion 22. As a result, ions can be stably generated.
(ninth modification)
Next, a ninth modification of the discharge device 100 according to the first embodiment will be described with reference to fig. 11. The discharge device 100 of the ninth modification is mainly different from the first embodiment, the first modification, the second modification, the third modification, the fourth modification, the fifth modification, the seventh modification, and the eighth modification in that it includes an outer wall portion 37. Differences between the discharge device 100 of the ninth modification and the first embodiment, the first modification, the second modification, the third modification, the fourth modification, the fifth modification, the seventh modification, and the eighth modification will be described below.
Fig. 11 is a diagram showing a discharge device 100 according to a ninth modification. The hood 2 of the ninth modification includes a main body 21 and a pair of openings 20. A pair of electrodes 19 pass through a pair of openings 20, respectively. The main body 21 has a wall portion 3, an outer wall portion 37, and a flat plate portion 22.
The wall portion 3 includes a pair of seventh wall portions 38. The pair of seventh wall portions 38 surround the periphery of the electrode 19. The pair of seventh wall portions 38 are, for example, cylindrical. The pair of seventh wall portions 38 extend from the flat plate portion 22 in the first direction D1. In other words, the wall portion 3 is not disposed in the space a between the cover portion 2 and the electrode substrate 5.
The outer wall portion 37 extends in the first direction D1. Further, the outer wall portion 37 is formed outside the flat plate portion 22. That is, the outer wall portion 37 is disposed between the flat plate portion 22 and the housing portion 1. Therefore, the periphery of the flat plate portion 22 of the outer wall portion 37 is surrounded.
The outer wall portion 37 surrounds the pair of electrodes 19. The outer wall portion 37 faces the electrode 19 in a direction intersecting the direction in which the electrode substrate 5 extends. Therefore, when the discharge device 100 is mounted on the device, a substance having water-absorbing property such as ammonium nitrate is prevented from adhering to the device other than the discharge device 100. As a result, the formation of a leakage path to the circuit board of the device on which the discharge device 100 is mounted can be suppressed.
That is, in the discharge device 100 of the ninth modification, the leakage path of the current formed in the flat plate portion 22 can be suppressed by the pair of seventh wall portions 38, and the leakage path toward the circuit board of the device in which the discharge device 100 is mounted can be suppressed by the outer wall portion 37.
The embodiments of the present invention have been described above with reference to the drawings. However, the present invention is not limited to the above-described embodiments, and can be implemented in various forms without departing from the scope of the invention. Further, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, some of the components may be deleted from all the components shown in the embodiments. Further, the components relating to the first to sixth modifications may be combined as appropriate. Further, the constituent elements relating to the different embodiments may be appropriately combined. For ease of understanding, the drawings are schematically illustrated mainly for the respective components, and the thickness, length, number, interval, and the like of the illustrated components are different from those of reality in terms of convenience in drawing. The speed, material, shape, size, and the like of each component shown in the above-described embodiments are examples, and are not particularly limited, and various modifications can be made without substantially departing from the structure of the present invention.
(1) In the discharge device 100 of the first embodiment, the polarity of one electrode 19 of the pair of electrodes 19 is different from the polarity of the other electrode 19 of the pair of electrodes 19, but is not limited thereto. For example, the pair of electrodes 19 may have the same polarity.
(2) In the discharge device 100 of the first embodiment, the pair of electrodes 19 are needle-shaped or brush-shaped electrodes, but not limited thereto. For example, one of the pair of electrodes 19 may be a sensing electrode. The sensing electrode surrounds the needle electrode.
(3) The discharge device 100 of the first embodiment has a pair of electrodes 19, but is not limited thereto. For example, one electrode 19 may be provided. Specifically, the discharge device 100 includes an electrode 19, a housing portion 1, a cover portion 2, an electrode substrate 5, a circuit substrate 6, an electronic component 7, a transformer 8, and a sealing material 9.
The electrode 19 is discharged by applying a voltage. A part of the electrode 19 penetrates the cover 2. The housing portion 1 houses a part of the electrode 19. The housing portion 1 houses the electrode substrate 5, the circuit substrate 6, the electronic component 7, the transformer 8, and the sealing material 9. The electrode substrate 5 is provided with an electrode 19. The cover 2 covers a portion of the housing 1 where the electrode 19 is disposed. The cover 2 faces the electrode substrate 5. Further, the circuit board 6 is not present between the electrode substrate 5 and the cover 2. Therefore, dust accumulation between the electrodes 19 and 19 can be suppressed. As a result, it is possible to suppress leakage of current from the electrode 19 due to dust accumulated between the electrode 19 and the electrode 19.
(4) The sealing member 9 is disposed on the surface of the electrode substrate 5 on the second direction D2 side in the discharge device 100 of the first embodiment, but the sealing member 9 may be disposed on the surface of the electrode substrate 5 on the first direction D1 side. In this case, the cover portion 2 can suppress dust from accumulating on the potting material 9 on the first direction D1 side of the electrode substrate 5.
(5) The main body portion 21 of the discharge device 100 of the first embodiment has one first wall portion 31, but is not limited thereto. For example, the main body 21 of the discharge device 100 may have a plurality of first wall portions 31. By disposing the plurality of first wall portions 31 in the flat plate portion 22, the distance from the opening 20 to the surface of the main body portion 21 of the opening 20 is further increased. Therefore, when a substance having a reduced insulating property is attached to the main body portion 21, a leakage path through which a current flows from the electrode 19 to the electrode 19 can be further delayed. As a result, the period in which ions can be generated more stably can be extended.
(6) The main body portion 21 of the discharge device 100 according to the second modification of the first embodiment includes one third wall portion 33 and one fourth wall portion 34, but is not limited thereto. For example, the main body 21 may have a plurality of recesses. Specifically, the main body 21 of the discharge device 100 may include a plurality of third wall portions 33 and a plurality of fourth wall portions 34. The flat plate portion 22 may also have a plurality of third flat plate portions 223. Therefore, by disposing the plurality of wall portions 3 in the flat plate portion 22, the distance from the opening 20 to the surface of the main body portion 21 of the opening 20 becomes longer. Therefore, when a substance having a reduced insulating property is attached to the main body portion 21, a leakage path through which a current flows from the electrode 19 to the electrode 19 can be further delayed. As a result, the period in which ions can be generated more stably can be extended.
(7) The flat plate portion 22 of the discharge device 100 of the seventh modification example has a wave shape, but is not limited thereto. For example, the first flat plate portion 221 of the fifth modification of the first embodiment may have a wave shape. Further, the second flat plate portion 222 of the fifth modification of the first embodiment may have a wave shape. Further, the third flat plate portion 223 of the fifth modification of the first embodiment may also have a wave plate shape.
Industrial applicability
The invention provides a discharge device having industrial applicability.
Description of the reference numerals
2: cover part
3: wall part
5: electrode substrate
6: circuit board
13: opening of the container
19: electrode for electrochemical cell
20: opening of the container
21: main body part
22: flat plate part
31: first wall part
32: second wall part
33: third wall part
34: the fourth wall part
35: fifth wall part
36: sixth wall part
37: outer wall part
100: discharge device
221: first flat plate part
222: second flat plate part
223: third flat plate part
D1: a first direction
D2: second direction
LA: inner diameter
LB: inner diameter
Claims (12)
1. A discharge device is characterized by comprising:
a pair of electrodes which discharge by applying a voltage;
an electrode substrate on which the pair of electrodes is arranged; and
a cover portion facing the electrode substrate,
a part of each of the pair of electrodes penetrates the cover portion,
there is no circuit board on which a circuit is formed between the electrode substrate and the cover portion.
2. The discharge device according to claim 1,
the cover portion includes a main body portion and a pair of openings arranged in the main body portion,
each of the pair of electrodes passes through the pair of openings and penetrates the cover portion,
the body portion has a wall portion extending in a direction intersecting the electrode substrate, the wall portion being disposed between the pair of openings.
3. The discharge device according to claim 2, wherein the main body portion has a flat plate portion extending along the electrode substrate,
the wall portion is disposed on the flat plate portion and extends in a first direction from the electrode substrate toward the flat plate portion.
4. The discharge device according to claim 2 or 3, wherein the main body portion has a flat plate portion extending along the electrode substrate,
the wall portion is disposed on the flat plate portion and extends in a second direction from the flat plate portion toward the electrode substrate.
5. The discharge device according to claim 4, wherein the wall portion extends from the flat plate portion to abut against the electrode substrate.
6. The discharge device according to claim 2, wherein the main body portion has a flat plate portion extending along the electrode substrate,
the wall portion is cylindrical in shape surrounding the periphery of the electrode,
the wall portion extends in a first direction from the electrode substrate toward the flat plate portion and in a second direction from the flat plate portion toward the electrode substrate.
7. The discharge device according to claim 6, wherein an inner diameter of the cylindrical shape of the wall portion is larger toward an end portion on the first direction side of the electrode.
8. The discharge device according to any one of claims 3 to 7, wherein the flat plate portion has a wave shape,
the wave shape is disposed in a portion between a pair of openings in the flat plate portion.
9. The discharge device according to any one of claims 3 to 5, wherein the wall portion includes a pair of wall portions extending toward the second direction side,
the flat plate portion has:
a first flat plate portion that extends from one of the pair of openings to an end portion on a first direction side of one of the pair of wall portions;
a second flat plate portion that extends from the other opening of the pair of openings to an end portion on the first direction side of the other wall portion of the pair of wall portions; and
a third flat plate portion that extends from an end portion of the one wall portion in the second direction to an end portion of the other wall portion in the second direction.
10. The discharge device according to any one of claims 2 to 9, wherein the main body portion further has an outer wall portion surrounding the pair of electrodes,
the outer wall portion is opposed to the pair of electrodes in a direction in which the electrode substrate extends.
11. A discharge device is characterized by comprising:
a pair of electrodes which discharge by applying a voltage;
an electrode substrate on which the pair of electrodes is arranged; and
a cover portion facing the electrode substrate,
the cover portion includes a main body portion and a pair of openings arranged in the main body portion,
the pair of electrodes pass through the pair of openings respectively,
the body portion has an outer wall portion surrounding the pair of electrodes,
the outer wall portion is opposed to the pair of electrodes in a direction in which the electrode substrate extends,
there is no circuit board on which a circuit is formed between the electrode substrate and the cover portion.
12. A discharge device is characterized by comprising:
an electrode which is discharged by applying a voltage;
an electrode substrate on which the electrode is disposed; and
a cover portion facing the electrode substrate,
a portion of the electrode penetrates the cover portion,
there is no circuit board on which a circuit is formed between the electrode substrate and the cover portion.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2020117823A JP7494034B2 (en) | 2020-07-08 | 2020-07-08 | Discharge Device |
| JP2020-117823 | 2020-07-08 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113922214A true CN113922214A (en) | 2022-01-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110750420.1A Pending CN113922214A (en) | 2020-07-08 | 2021-07-02 | Discharge device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP7494034B2 (en) |
| CN (1) | CN113922214A (en) |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5192063B2 (en) | 2011-05-18 | 2013-05-08 | シャープ株式会社 | Ion generator and electrical equipment using the same |
| JP6527664B2 (en) | 2013-12-18 | 2019-06-05 | シャープ株式会社 | Ion generator |
-
2020
- 2020-07-08 JP JP2020117823A patent/JP7494034B2/en active Active
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2021
- 2021-07-02 CN CN202110750420.1A patent/CN113922214A/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| JP7494034B2 (en) | 2024-06-03 |
| JP2022022835A (en) | 2022-02-07 |
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