WO2023162585A1 - Electrical discharge device - Google Patents

Electrical discharge device Download PDF

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Publication number
WO2023162585A1
WO2023162585A1 PCT/JP2023/002920 JP2023002920W WO2023162585A1 WO 2023162585 A1 WO2023162585 A1 WO 2023162585A1 JP 2023002920 W JP2023002920 W JP 2023002920W WO 2023162585 A1 WO2023162585 A1 WO 2023162585A1
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WO
WIPO (PCT)
Prior art keywords
discharge
electrode
base
magnetized body
facing wall
Prior art date
Application number
PCT/JP2023/002920
Other languages
French (fr)
Japanese (ja)
Inventor
秀明 西本
武則 岡村
祐介 岡本
Original Assignee
マクセル株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by マクセル株式会社 filed Critical マクセル株式会社
Publication of WO2023162585A1 publication Critical patent/WO2023162585A1/en

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
    • A61L9/00—Disinfection, sterilisation or deodorisation of air
    • A61L9/015—Disinfection, sterilisation or deodorisation of air using gaseous or vaporous substances, e.g. ozone
    • C—CHEMISTRY; METALLURGY
    • C01—INORGANIC CHEMISTRY
    • C01B—NON-METALLIC ELEMENTS; COMPOUNDS THEREOF; METALLOIDS OR COMPOUNDS THEREOF NOT COVERED BY SUBCLASS C01C
    • C01B13/00—Oxygen; Ozone; Oxides or hydroxides in general
    • C01B13/10—Preparation of ozone
    • C01B13/11—Preparation of ozone by electric discharge
    • 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
    • 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

Definitions

  • the present invention relates to a discharge device including a discharge section including a pair of electrodes and a base section to which the discharge section is detachably attached.
  • This discharge device can be applied to an ozone generator (ozonizer) that generates ozone by electric discharge in the air, an ion generator (ionizer) that generates various ions (negative ions, hydroxyl radicals, etc.).
  • ozone generator ozonizer
  • ion generator ionizer
  • Patent Document 1 for example, can be cited as a prior art document related to this type of discharge device.
  • the ozone sterilization and deodorizing device of Patent Document 1 is composed of a base portion (control box) and a discharge portion (output portion) arranged above and below a partition wall, and the discharge portion including an ozone generation mechanism drives a power supply portion and the like. It is detachable with respect to the base portion including.
  • the discharge section includes a pair of electrodes as an ozone generating mechanism, a base for supporting both electrodes, pin-shaped terminals extending from each electrode, and the like, and each terminal protrudes outward from the surface of the base.
  • the discharge section is attached to the base and the pair of electrodes and the power supply section of the base are electrically connected.
  • the discharger is detachable from the base, only the discharger (ozone generating mechanism) of the ozone sterilization and deodorizing device, which is relatively susceptible to deterioration, can be replaced, and the entire device can be replaced. It is economical compared to the case of
  • the discharge section is attached to the base section by inserting a pin-shaped terminal, and the discharge section is held in the attached state by the frictional force acting between the terminal and the base section.
  • a mounting and holding means having a pin-shaped terminal as an element, the terminals and the like may wear due to repeated mounting and demounting, weakening the frictional force that holds the discharge section in the mounted state.
  • high precision is required for the diameter dimension of the terminal. In other words, if the terminal is thicker than the allowable range, a strong force is required to insert and remove the terminal, and the discharge section cannot be easily attached and detached. Conversely, if the terminals are unacceptably thin, unintended separation of the discharge section is more likely to occur.
  • the mounting and holding means for holding the discharge section in the mounted state can stably exhibit its function over a long period of time, and the mounting and holding means does not require high precision, and therefore can be manufactured with high yield. It is an object of the present invention to provide a discharge device capable of
  • the discharge device includes a discharge section 16 including a pair of electrodes 31 and 32, and a base section 15 to which the discharge section 16 is detachably mounted. is composed of a first magnetic body 53 provided in the discharge section 16 and a second magnetic body 54 provided in the base section 15 and capable of being magnetically attached to the first magnetic body 53. It is characterized by
  • the upper facing wall 51 of the discharging section 16 and the lower facing wall 52 of the base section 15 face each other vertically, and the first magnetized body 53 is arranged in the center of the upper facing wall 51 .
  • the second magnetized body 54 can be arranged in the center of the lower facing wall 52. As shown in FIG.
  • the upper facing wall 51 of the discharging section 16 and the lower facing wall 52 of the base section 15 face each other vertically, and one of the upper facing wall 51 and the lower facing wall 52 is provided with an engaging protrusion. 47 is provided, and an engaging concave portion 48 for receiving the engaging convex portion 47 is provided on the other side.
  • the engagement protrusion 47 protrudes downward from the lower surface of the upper facing wall 51 , and the upper accommodation recess 55 for accommodating the first magnetized body 53 is formed on the back side of the engagement protrusion 47 on the upper surface of the upper facing wall 51 .
  • the engaging recess 48 is provided on the upper surface of the lower facing wall 52 , and the second magnetized body 54 is attached to the back side of the engaging recess 48 on the lower surface of the lower facing wall 52 .
  • a configuration can be adopted in which an indicator 117 indicating the mounting position of the second magnetized body 54 is provided on the lower surface of the lower facing wall 52 .
  • the base portion 15 includes a base case 42 having a lower facing wall 52 and a holder case 115 that holds the second magnetized body 54. Both the base case 42 and the holder case 115 are made of plastic material, A form in which they are joined to each other can be adopted.
  • a form in which a lower accommodation recess 56 that accommodates at least the upper portion of the second magnetized body 54 is provided on the lower surface of the lower facing wall 52 can be adopted.
  • a form in which a circumferential surrounding frame 57 surrounding at least the upper part of the second magnetized body 54 protrudes from the lower surface of the lower facing wall 52 can be adopted.
  • a form in which the base end portion of the surrounding frame 57 is formed thicker than the tip end portion can be adopted.
  • a form in which the second magnetized body 54 is formed in a non-circular plate shape or columnar shape can be adopted.
  • the mounting and holding means for holding the discharge section 16 in the mounted state is composed of the first magnetic body 53 provided on the discharge section 16 and the second magnetic body provided on the base section 15. 54.
  • the discharge section 16 is held in the mounted state by the attraction force acting between the two magnetically attracted bodies 53 and 54 .
  • This attracting force does not decrease due to repeated attachment and detachment of the discharge section 16, and is not easily affected by variations in the dimensions of the magnetized bodies 53 and 54, and its size is substantially constant. Therefore, even if there is some variation in the dimensions of the magnetized bodies 53 and 54, the discharge section 16 can be held in the mounted state with just the right amount of attractive force.
  • the mounting and holding means can stably exhibit its function over a long period of time, and the mounting and holding means does not require high precision, and therefore can be manufactured with a high yield. can provide.
  • the edges of the facing walls 51 and 52 are arranged.
  • the mounting state of the discharge section 16 can be maintained in a good condition without arranging a magnetically attached body in the section.
  • the number of magnetically attracted bodies 53 and 54 required to maintain the mounted state of the discharge section 16 can be reduced, and the discharge device can be manufactured at low cost.
  • both the facing walls 51 and 52 in the mounted state of the discharge portion 16 can be displaced.
  • relative movement in the horizontal direction can be regulated by the engaging convex portion 47 and the engaging concave portion 48 .
  • the engaging convex portion 47 may protrude downward from the lower surface of the upper facing wall 51, and an upper accommodating concave portion 55 for accommodating the first magnetized body 53 may be formed on the back side thereof. According to this, when attaching the first magnetized body 53 to the upper facing wall 51 , the operator can easily determine the position of the first magnetized body 53 . It is possible to enclose it and regulate its horizontal positional deviation.
  • An engaging recess 48 is provided on the upper surface of the lower facing wall 52, and the second magnetized body 54 can be attached to the back side thereof.
  • the engaging convex portion 47 and the engaging concave portion 48 are engaged with each other.
  • the two magnetized bodies 53 and 54 are vertically opposed to each other, that is, they are attracted to each other, so that the mounting state of the discharge section 16 can be maintained well.
  • the operator can easily determine the position when mounting the second magnetized body 54 to the lower facing wall 52. It can be discriminated, and the workability is improved.
  • a configuration can be adopted in which the second magnetized body 54 is held by a plastic holder case 115 and joined to the plastic base case 42 .
  • bonding between plastics is easier and stronger than bonding between plastics and metals. It is possible to more reliably prevent the second magnetized body 54 from falling off from the base case 42, as compared with the case where it is fixedly attached.
  • the wall surface of the lower accommodating recess 56 regulates the positional displacement of the second magnetic member 54 in the horizontal direction. be able to.
  • the strength of the base end portion can be increased, and the enclosing frame 57 can be well prevented from being damaged from the base.
  • the second magnetized body 54 When the second magnetized body 54 is formed in a non-circular plate-like or columnar shape, its rotation about its vertical axis is restricted by the wall surface of the lower housing recess 56 or the surrounding frame 57, so that the mounting state of the second magnetized body 54 is controlled. can be made more stable.
  • FIG. 1 is a longitudinal front view of a discharge device according to a first embodiment of the present invention
  • FIG. Fig. 2 is a longitudinal front view schematically showing an ozonizer equipped with the discharge device
  • 3 is a block diagram showing the control system of the ozonizer
  • FIG. It is a perspective view of the same discharge device. It is an exploded perspective view of the same discharge device.
  • FIG. 3 is a perspective view of a discharge portion and a base portion that constitute the same discharge device
  • FIG. 2 is a cross-sectional view taken along the line BB in FIG. 1
  • 4 is a longitudinal side view of constituent members of the discharge section
  • FIG. FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1;
  • FIG. 2 is a sectional view taken along the line AA in FIG. 1 of the separated discharge part and base part;
  • FIG. 2 is a sectional view taken along line CC in FIG. 1;
  • FIG. 2 is a cross-sectional view taken along line CC in FIG. 1 of the separated discharge portion and base portion; It is a top view of a base part and a discharge part turned over.
  • FIG. 2 is a plan view of an electrode pair that constitutes a discharge section;
  • FIG. 7 is a longitudinal side view of the base portion of the discharge device according to the second embodiment of the present invention;
  • FIG. 11 is a longitudinal side view of a base portion of a discharge device according to a third embodiment of the present invention; It is a longitudinal side view of the base part of the discharge device concerning 4th Embodiment of this invention.
  • FIG. 11 is a front view schematically showing a discharge device according to a fifth embodiment of the invention.
  • FIG. 11 is a front view schematically showing a discharge device according to a sixth embodiment of the present invention;
  • FIG. 11 is a front view schematically showing a discharge device according to a seventh embodiment of the invention; It is a vertical front view of the discharge device which concerns on 8th Embodiment of this invention.
  • FIG. 4 is a plan view of an electrode pair that constitutes a discharge section of the discharge device;
  • FIGS. 1 to 14 show a first embodiment of a discharge device according to the present invention.
  • the discharge device of the present embodiment is incorporated in a desktop ozonizer (ozone generator) and plays a role of generating ozone by discharging in the air.
  • Front and back, left and right, and up and down in this embodiment follow the crossed arrows shown in FIGS. The same applies to the second embodiment and subsequent embodiments.
  • a casing 2 serving as a base of the ozonizer 1 is composed of a main case 3 occupying the majority of the casing and a sub case 4 detachably joined to the upper surface of the main case 3. 4, a substantially L-shaped air passage 5 is formed in the casing 2.
  • a discharge device 6 for generating ozone by electric discharge a blower fan 7 for discharging the generated ozone from the air passage 5, and the like are provided.
  • a suction port 8 of the air passage 5 is provided on the right side wall of the main case 3 , and a blower fan 7 is arranged facing the suction port 8 .
  • the left part of the upper wall of the sub-case 4 has an inclined surface that slopes down from right to left, and the outlet 9 of the air passage 5 is provided on this inclined surface.
  • the blower fan 7 forms a leftward airflow in the air path 5 from the suction port 8 toward the blowout port 9 and discharges air containing ozone from the blowout port 9 .
  • the air passage 5 extends from the suction port 8 (upstream side) to the blowout port 9 (downstream side), and is formed by joining the upper and lower sides of the main case 3 and the upper and lower portions 11 formed only by the main case 3 . and a downstream portion 13 formed only by the sub case 4 .
  • the blower fan 7 is arranged in the upstream section 11 together with a fan motor 14 as a drive source, and the discharge device 6 is arranged in the midstream section 12 .
  • the discharge device 6 comprises a lower base portion 15 and an upper discharge portion 16.
  • the base portion 15 is fixed to the lower half portion of the midstream portion 12, that is, to the main case 3, and the discharge portion 16 is detachably attached to the base portion 15. is installed.
  • the base portion 15 is provided with a mounting detection portion 17 (see FIG. 3) for detecting whether or not the discharge portion 16 is mounted. Details of the discharge device 6 will be described later.
  • the lower half of the midstream section 12 is partitioned by the main case 3 , while the upper half is partitioned by the sub case 4 . Therefore, when the sub case 4 is separated from the main case 3, the upper surface of the discharge device 6 is exposed and maintenance of the discharge device 6 can be performed. Specifically, for example, the surface of the discharge portion 16 can be cleaned after the discharge portion 16 is separated from the base portion 15 .
  • a safety switch 18 for mechanically detecting whether or not the sub case 4 is joined is provided on the joint surface of the main case 3 with the sub case 4 .
  • the main case 3 incorporates a control section 21 that controls the entire ozonizer 1 and a booster circuit (transformer) 22 .
  • the main case 3 is also connected to a power supply unit 23 (see FIG. 3) such as a commercial power supply via a power cord, and a power switch 24 for turning on the power is provided on the surface (left side) of the main case 3.
  • the booster circuit 22 boosts the AC voltage of, for example, 100 V supplied from the power supply unit 23 to several kV and applies the high voltage to the discharge device 6 .
  • the main case 3 also incorporates a switching power supply (not shown) that converts the AC voltage supplied from the power supply unit 23 into a DC voltage of a predetermined value (eg, 5V, 12V, 24V, etc.).
  • This DC voltage serves as a drive source for the IC of the control unit 21 and the fan motor 14 .
  • the booster circuit 22 may boost the DC voltage output from the switching power supply and apply it to the discharge device 6 .
  • the power supply unit 23 may be a power adapter that outputs a DC voltage, and in that case also, the booster circuit 22 boosts the DC voltage and applies it to the discharge device 6 .
  • the control unit 21 When the power switch 24 is turned on by the user, the control unit 21 first checks the presence or absence of the discharge unit 16 and the sub case 4 based on the outputs of the attachment detection unit 17 and the safety switch 18 . After confirming that the discharge section 16 is attached to the base section 15 and that the sub case 4 is joined to the main case 3 , the control section 21 connects the power supply section 23 to the fan motor 14 and the booster circuit 22 . Start energizing. When power is supplied to the fan motor 14 and the booster circuit 22, the blower fan 7 and the discharge device 6 are driven. As a result, an air current is formed in the air passage 5 from the suction port 8 toward the blowout port 9 , and air containing ozone generated around the discharge device 6 is blown out from the blowout port 9 .
  • control section 21 When the separation of the sub case 4 or the discharge section 16 is confirmed, the control section 21 immediately interrupts the energization to the booster circuit 22 and the like. It is possible to reliably prevent an electric shock accident in which the user touches the electrodes 31 and 32 (described later) and the terminals 85 and 86 (described later) in the closed state.
  • the controller 21 When starting to supply power to the fan motor 14 and the booster circuit 22, the controller 21 lights the notification means 27, which is a lamp, in green, for example, so as to notify the user that the ozonizer 1 is being driven. good too. Further, when the presence of the discharge portion 16 and the sub case 4 cannot be confirmed, the notification means 27 may be illuminated in red, for example, to inform the user of this fact.
  • a photodetector 28 is provided near the discharge device 6 in the air passage 5 to detect the blue light emitted by the discharge section 16 during discharge.
  • the light detection unit 28 include a color sensor using a photodiode, a camera, and the like.
  • the control unit 21 can determine the degree of contamination (accumulation of dust and the like) of the discharge unit 16 based on the amount of blue light detected by the light detection unit 28 . If it is determined that the amount of light is less than a predetermined value, that is, the degree of contamination is high, the controller 21 lights the notification means 27 in, for example, yellow to prompt the user to clean the discharge device 6 early.
  • the discharge device 6 is composed of a base portion 15 fixed inside the air passage 5 and a discharge portion 16 detachably mounted on the upper side of the base portion 15 . If the discharge section 16 is detachable from the base section 15, the discharge section 16, which is relatively easily soiled, can be easily cleaned while being separated from the base section 15. FIG. Moreover, when the discharge unit 16 breaks down, only the discharge unit 16 can be replaced, and the repair cost can be reduced compared to the case where the entire discharge device 6 including the base unit 15 is replaced. There is also an advantage that an operator can easily attach the discharge section 16 to the base section 15 in the manufacturing line of the discharge device 6 or the ozonizer 1 . The entire discharge portion 16 is rotationally symmetrical about the vertical axis, strictly speaking, two-fold symmetrical. That is, when the orientation of the discharge section 16 shown in FIG. 16 can be properly attached to the base portion 15 in either the first posture or the second posture.
  • the discharge section 16 is composed of a first electrode 31 and a second electrode 32 that face each other vertically, a dielectric 33 interposed between the electrodes 31 and 32, a discharge case 34 that supports them, and the like.
  • the first electrode 31 on the upper side is formed in the shape of a round bar extending straight from side to side and is in contact with the upper surface of the dielectric 33 .
  • the second electrode 32 on the lower side is composed of a film formed on the lower surface of the dielectric 33 by a film forming method such as sputtering.
  • Each of the electrodes 31 and 32 can be made of any metal or alloy such as silver, copper, or stainless steel.
  • the first electrode 31 and the second electrode 32 are made of titanium, which has excellent corrosion resistance.
  • the diameter of the round bar-shaped first electrode 31 was set to 1 mm, and the thickness of the film-shaped second electrode 32 was set to 50 to 150 nm.
  • the discharge section 16 can be made compact with a small vertical dimension.
  • the dielectric 33 is made of an insulating material such as glass, and is formed in the shape of a horizontally elongated rectangular plate. Specific examples of insulating glass include borosilicate glass and quartz glass. In this embodiment, the dielectric 33 has a thickness of 0.7 mm.
  • the discharge case 34 is made of insulating plastic, and has a rectangular discharge opening 35 formed on its upper surface to expose the first electrode 31 and the dielectric 33 upward.
  • the discharge case 34 is composed of a rectangular frame-shaped outer case 37 having top and bottom openings and a rectangular plate-like inner case 38 opening downward.
  • An inner case 38 is fitted from the inside.
  • the upper opening of the outer case 37 functions as the discharge opening 35
  • the lower opening of the case 37 is closed with the inner case 38 .
  • An engagement structure consisting of a protrusion 39 and a recess 40 is provided on each of the front and rear walls of both cases 37 and 38 (see FIG. 11).
  • the projections 39 are provided on the outer surfaces of the front and rear walls of the inner case 38
  • the recesses 40 are provided on the inner surfaces of the front and rear walls of the outer case 37, but this arrangement may of course be reversed.
  • Engagement structures can also be provided on the left and right walls of both cases 37 and 38 .
  • a base case 42 serving as the base of the base portion 15 is made of an insulating plastic molded product like the outer case 37 and the inner case 38 of the discharge case 34, and has a relatively small upper step portion 43. and a large lower step portion 44 integrally formed in a rectangular stepped platform shape.
  • a lower portion 44 of the base case 42 is fixed to the main case 3 with a plurality of screws 45 .
  • a downward mounting recess 46 is provided that receives the upper step portion 43 and surrounds it from the front, rear, left and right.
  • a downward engaging protrusion 47 is formed.
  • a recess 48 is recessed.
  • the engaging convex portion 47 is a flat protrusion having a rectangular cross section, and the engaging concave portion 48 is a rectangular flat concave portion slightly larger than the engaging convex portion 47 .
  • the upper step portion 43 of the base case 42 is fitted into the inner case 38 of the discharge case 34 from below and engaged with the attachment recess 46 as shown in FIGS.
  • the engagement protrusion 47 engages with the engagement recess 48 .
  • the planar shape of the engaging projection 47 and the engaging recess 48 is not limited to a rectangle.
  • the discharge portion 16 can be restricted from shifting and rotating. It is also possible to provide a plurality of sets of engaging projections 47 and engaging recesses 48, in which case displacement and rotation of the discharge portion 16 can be restricted regardless of the planar shapes of both 47 and 48.
  • the horizontal ceiling walls of the inner case 38 and the upper stage section 43 face each other vertically.
  • the portion of the top wall of the inner case 38 that faces the upper stepped portion 43 (excluding the left and right end portions)
  • the top wall of the upper stepped portion 43 will be referred to as a lower facing wall 52 .
  • These opposing walls 51 and 52 are provided with attachment holding means for regulating the unintentional upward separation of the discharge section 16 from the base section 15 and holding the discharge section 16 in the mounted state.
  • the mounting and holding means consists of a rectangular parallelepiped first magnetized body 53 attached to the upper facing wall 51 of the inner case 38 and a rectangular plate-shaped second magnetized body attached to the lower facing wall 52 of the upper stage portion 43. 54.
  • the first magnetized body 53 is composed of a permanent magnet
  • the second magnetized body 54 is composed of a magnetic material that becomes magnetized when the magnet approaches.
  • the first magnetized body 53 may be composed of a magnetic material
  • the second magnetized body 54 may be composed of a permanent magnet.
  • an upper accommodation recess 55 that opens upward and accommodates the first magnetized member 53 is formed in the center of the upper surface of the upper opposing wall 51 .
  • a lower accommodation recess 56 is formed which opens to accommodate the second magnetized member 54 .
  • the upper surface of the first magnetized body 53 accommodated in the upper accommodation recess 55 is substantially flush with the upper surface of the upper facing wall 51 .
  • the lower housing recess 56 is formed inside a rectangular surrounding frame 57 projecting from the lower surface of the lower facing wall 52 .
  • the base end portion (upper portion) of the surrounding frame 57 is formed thicker than the tip end portion (lower portion).
  • the mounting detection unit 17 which is a magnetic sensor, is fixed to the lower surface of the second magnetic member 54 , and the mounting detection unit 17 is accommodated in the lower accommodation recess 56 together with the second magnetic member 54 .
  • the first magnetized body 53 and the second magnetized body 54 can be adhered and fixed in the housing recesses 55 and 56 with any adhesive.
  • the surfaces of the magnetized bodies 53 and 54 housed in the housing recesses 55 and 56 can be covered with resin potting so that they cannot be detached.
  • the surfaces of the magnetized bodies 53 and 54 are covered with a resin film to prevent corrosion and the like.
  • resin potting is applied to the first magnetized body 53 , it is desirable that the vertical thickness thereof is slightly smaller than the depth of the upper housing recess 55 .
  • the second magnetized body 54 is potted with resin, it can be fixed in the lower accommodation recess 56 at the same time as the mounting detection section 17, and in addition, the mounting detection section 17 can be covered with resin and protected.
  • Specific examples of the potting material include urethane resin, epoxy resin, silicone resin, and the like, which are excellent in elasticity.
  • the first magnetized body 53 constituting the mounting and holding means is arranged on the back side (upper side) of the engaging convex portion 47 with the upper facing wall 51 interposed therebetween, and the second magnetized body 54 is arranged on the lower facing wall 52 . are arranged on the back side (lower side) of the engaging recess 48 with the . Therefore, when the engaging protrusion 47 is engaged with the engaging recess 48, the first magnetic member 53 is positioned close to the second magnetic member 54 and directly above it. 54 is reliably attracted to the first magnetized body 53 . Due to this adsorption force, unintended upward separation of the discharge portion 16 from the base portion 15 can be regulated.
  • the attachment detector 17 located below the second magnetically attached body 54 outputs a signal to the controller 21 upon detecting the magnetic field emitted by the first magnetically attached body 53 which is a permanent magnet. By receiving the signal, the control unit 21 can determine that the discharge unit 16 is attached to the base unit 15 .
  • the second magnetized body 54 is arranged on the upper part 43 of the base case 42 , the impact when the discharge device 6 receives an external force reaches the second magnetized body 54 , compared to the case where the second magnetized body 54 is arranged on the lower part 44 . It becomes difficult to reach, and the discharge part 16 becomes difficult to come off from the base part 15 .
  • the first magnetized body 53 accommodated in the upper accommodating recess 55 is surrounded by the walls of the upper accommodating recess 55 on all four sides, front, back, left, and right, so that it is restricted from shifting in the horizontal direction and from rotating about the vertical axis.
  • the second magnetized body 54 accommodated in the lower accommodation recess 56 is also surrounded by the walls of the lower accommodation recess 56 on all four sides, front, back, left, and right, thereby restricting its movement in the horizontal direction and its rotation about the vertical axis. It is
  • the planar shape of the first magnetized body 53 and the second magnetized body 54 is not limited to a rectangle.
  • first magnetized body 53 and the second magnetized body 54 It is possible to restrict displacement and rotation of the first magnetized body 53 and the second magnetized body 54 by enclosing them with a wall surface.
  • the discharge section 16 separated from the base section 15 can be attracted and held by a stainless steel sink or the like, and when the discharge section 16 is dried after being washed with water.
  • the second electrode 32 and the dielectric 33 are adhered and fixed to the upper surface of the upper facing wall 51 (and the first magnetized body 53) of the inner case 38 via a cushion material 58 made of double-sided tape.
  • the cushion material 58 is formed in a rectangular shape that is one size larger than the dielectric 33 , and the second electrode 32 is sandwiched between the dielectric 33 and the cushion material 58 from above and below.
  • the peripheral portion of the cushion material 58 is elastically deformed and adheres to the dielectric 33 .
  • the upper ends of the front and rear walls of the outer case 37 protrude inward toward the rod-shaped first electrode 31, and the lower surface of this protrusion receives the front and rear edges of the dielectric 33.
  • An upper inner receiving portion 59 and a lower outer receiving portion 60 for receiving the front and rear edges of the cushion material 58 are formed stepwise.
  • the dielectric 33 is sandwiched from above and below by the outer case 37 (inner receiving portion 59) and the inner case 38 (upper facing wall 51).
  • the cushion material 58 positioned between the dielectric 33 and the inner case 38 is elastically deformed by being pushed by the dielectric 33 and the outer receiving portion 60 from above and by the inner case 38 from below, and the thickness dimension of the dielectric 33 and the like are elastically deformed.
  • Absorbs design tolerances of The dielectric 33 is positioned in the front-rear direction by a vertical wall between the inner receiving portion 59 and the outer receiving portion 60 of the outer case 37 .
  • a pair of left and right upper walls 61 forming right and left edges of the discharge opening 35 are provided on the upper part of the outer case 37.
  • the body 33 is positioned in the left-right direction.
  • the rod-shaped first electrode 31 is supported by a pair of left and right electrode support structures 64 provided on the discharge case 34 .
  • the electrode support structure 64 includes upper support portions 65 provided on both left and right sides of the discharge opening 35 in the outer case 37, and lower support portions projecting from both left and right ends of the ceiling wall of the inner case 38 (left and right sides of the upper facing wall 51). 66.
  • the upper support portion 65 is formed in the front-rear center of each upper wall 61 of the outer case 37 so as to extend laterally in a tunnel shape.
  • An upper semi-circular receiving groove 67 for receiving the upper half of the first electrode 31 is recessed in the inner surface of the upper support portion 65 .
  • Relief recesses 68 are formed to receive electrode connection portions 90 of body 87 (see FIG. 1).
  • each receiving groove 67 (the tip end side of the first electrode 31) is directly above a lower semicircular receiving portion 69 (see FIG. 8) recessed in the tip surface of the lower support portion 66. , and both 67 and 69 cooperate to sandwich the first electrode 31 from above and below.
  • An introduction groove 70 (see FIG. 8) extending downward continuously from the receiving groove 67 is formed in the inner surface of the left and right walls of the outer case 37 .
  • the electrode unit 71 is positioned within the discharge case 34 together with the cushioning material 58, the outer case 37 and the inner case 38. are sandwiched from above and below. Specifically, the first electrode 31 constituting the upper portion of the electrode unit 71 is supported from above by the upper support portion 65 of the outer case 37, and the second electrode 32 and the dielectric 33 constituting the lower portion of the electrode unit 71 , and is supported from below by the upper facing wall 51 of the inner case 38 via a cushion material 58 .
  • the upper facing wall 51 constitutes a lower receiving portion 72 that receives the surface of the dielectric 33 on the second electrode 32 side, or a lower receiving portion 72 that receives the second electrode 32 from the back side of the dielectric 33 .
  • white dust containing nitrate as a main component may accumulate on the upper surface of the discharge section 16, particularly on the surfaces of the first electrode 31 and the dielectric 33.
  • the nitrogen, oxygen and moisture in the air can react to form nitric acid, which causes nitrate or dust deposition. Since this dust interferes with the discharge, it is desirable to remove it periodically.
  • a cleaning brush can be used in addition to washing with water.
  • the moving direction of the cleaning brush is desirably the horizontal direction that coincides with the extending direction of the first electrode 31, so that the bristles of the cleaning brush are moved from one end of the first electrode 31 toward the other end,
  • the surfaces of the first electrode 31 and the dielectric 33 can be cleaned simultaneously.
  • the outer case 37 of the discharge case 34 is The upper surface is provided with upward grooves 73 adjacent to the left and right sides of the dielectric 33 (discharge opening 35).
  • the top surface of dielectric 33 and the bottom surface of groove 73 are flush with each other. Therefore, the dust can be avoided from being caught between the dielectric 33 and the groove 73, and can be easily swept out without any residue.
  • a pair of protrusions 74 extending parallel to the first electrode 31 are provided on the upper surface of the outer case 37 of the discharge case 34 with the dielectric 33 (discharge opening 35) therebetween.
  • Side surfaces facing the dielectric 33 at the left-right central portion of each protrusion 74 constitute a center guide surface 75, and side surfaces continuing to the left and right sides of the center guide surface 75 constitute end guide surfaces 76 that partition the groove portion 73.
  • the groove portion 73 in this embodiment is defined by the ridge 74 (end guide surface 76), the upper wall 61, and the upper support portion 65, and the groove portion 73 is formed on both front and rear sides of the left and right upper support portions 65.
  • the center guide surface 75 of each projection 74 guides the bristles of the cleaning brush in the left-right direction and retains the bristles on the surface of the dielectric 33, contributing to accurate cleaning of the surface.
  • the left and right end guide surfaces 76 are smoothly continuous with the center guide surface 75 . These guide surfaces 75 and 76 allow the bristles of the cleaning brush to be smoothly guided from one groove 73 to the surface of the dielectric 33 and smoothly guided from the surface to the other groove 73 .
  • a user can, for example, introduce a cleaning brush through the left groove 73 and move the brush straight to the right to catch dust and sweep it out of the right groove 73 . When this operation is performed on the front side and the rear side of the first electrode 31 respectively, dust removal, ie, cleaning, is completed.
  • the cleaning work described above is performed with the discharge section 16 separated from the base section 15 .
  • the left and right upper support portions 65 function as knobs.
  • marks 79 made of protrusions are provided at the front and rear centers of the left and right outer surfaces of the case body 34 (outer case 37).
  • the portion 16 can be separated from the base portion 15 by picking it up with two fingers from both left and right sides and pulling it up.
  • the lateral dimension of the discharge portion 16 (discharge case 34) according to the present embodiment is approximately 45 mm, and the longitudinal dimension thereof is approximately 16 mm.
  • the upper support portion 65 that protrudes significantly upward from the first electrode 31 As a knob, it is possible to prevent the user from touching the first electrode 31 and the dielectric 33 and getting sebum and the like from adhering to them.
  • the mark 79 indicates that the upper support portion 65 is a knob, the user may pick up a portion other than the upper support portion 65, such as the front and rear walls of the case body 34, and accidentally touch the first electrode 31 or the dielectric 33. can often be prevented.
  • the mark 79 may be a mark printed on the case main body 34, but by using this as a projection, the mark 79 can also function as a non-slip, allowing the user to firmly hold the discharge case 34. can.
  • the tunnel-shaped upper support portion 65 covering the first electrode 31 from above protrudes further upward than the first electrode 31, when the discharge portion 16 is turned upside down and falls, the discharge portion 16 falls before the floor surface or the like. It is possible to prevent a direct impact from reaching the first electrode 31 due to the contact. That is, the upper support portion 65 also serves as the first protection portion 81 that protects the first electrode 31 from drop impact. Also, a pair of protrusions 74 provided on the front and rear sides of the outer case 37 also protrude upwards from the first electrode 31, although the projection dimension is smaller than that of the first protection portion 81 (upper support portion 65) (see FIG. 3). 1), it can hit the floor or the like first, like the first protection part 81 . In other words, the ridge 74 constitutes a second protection portion 82 that protects the first electrode 31 from a drop impact.
  • the base portion 15 is provided with a first terminal 85 and a second terminal 86 to which an AC voltage of several kV is supplied from the booster circuit 22.
  • the second electrode 32 is electrically connected to a second terminal 86 via a second conductor 88 . That is, the booster circuit 22 applies a high AC voltage to the first electrode 31 and the second electrode 32 via the terminals 85 and 86 and the conductors 87 and 88 .
  • the terminals 85 and 86 and the conductors 87 and 88 are made of metal such as gold-plated stainless steel.
  • the first conductor 87 is formed by bending a single conductor wire (metal wire).
  • a terminal connection portion 92 is integrally provided.
  • the electrode connection portion 90 is formed in a coil shape with the horizontal direction as the axial direction, and is wound so as to be in close contact with the peripheral surface of the first electrode 31 (see FIG. 1).
  • the winding portion 91 is formed in an L shape having a vertical portion and a horizontal portion when viewed from the side, and urges downward one end of the electrode connecting portion 90 that is continuous with the vertical portion. By pulling one end of the electrode connection portion 90 downward with the winding portion 91 , the adhesion of the electrode connection portion 90 to the peripheral surface of the first electrode 31 can be enhanced.
  • the seam portion 91 exhibits springiness in this manner because the horizontal portion of the seam portion 91 is received by the lower surface of the upper wall 61 of the outer case 37 , that is, the seat portion 94 .
  • a terminal connection portion 92 that continues to the lower side of the seam portion 91 is formed in the shape of a compression coil spring whose axial direction is the vertical direction. 9, the lower end of the terminal connection portion 92 is elastically adhered to the upper surface of the first terminal 85, and the first conductor 87 is electrically connected to the first terminal 85. be. At this time, the terminal connecting portion 92 is vertically compressed, and its upper end is received by the seat portion 94 in the same manner as the horizontal portion of the winding portion 91 .
  • the lower end of the terminal connection portion 92 that is, the first contact 95 is formed in an annular shape.
  • the number of parts can be reduced, and the labor and cost of assembly during manufacturing can be reduced.
  • the terminal connection portion 92 in the compressed state is elastically brought into close contact with the first terminal 85, the electrical connection between the two terminals 85 and 92 is stable and reliable. , and the design tolerance of the vertical dimensions of the base case 42 and the like can be absorbed.
  • the repulsive force in the vertical direction exerted by the terminal connection portion 92 in the compressed state is sufficiently smaller than the attraction force between the first and second magnetic bodies 53 and 54 that constitute the mounting and holding means described above.
  • the discharge portion 16 is not separated from the base portion 15 only by the repulsive force of the terminal connection portion 92 .
  • the user since part of the attraction force of the mounting and holding means is offset by the repulsive force of the terminal connection portion 92, the user should separate the discharge portion 16 from the base portion 15 with a lighter force when cleaning the discharge portion 16 or the like. can be done.
  • the terminal connection portion 92 is separated from the vertical portion in the horizontal direction (front-rear direction) via the horizontal portion of the seam portion 91 .
  • the downward biasing force acting on the electrode connection portion 90 from the vertical portion of the winding portion 91 is prevented from being canceled by the repulsive force of the terminal connection portion 92, and the electrode connection portion 90 is can be brought into close contact with the peripheral surface of the first electrode 31 .
  • a substantially cylindrical storage boss 99 is provided downwardly to define a storage hole 98 for the terminal connection portion 92 of the first conductor 87 so as to surround the seat portion 94. be done.
  • the upper half of the terminal connection portion 92 is accommodated in the accommodation hole 98, and by surrounding the upper half of the terminal connection portion 92 with the accommodation boss 99, the upper half is protected from external forces. Damage such as deformation can be prevented.
  • a vertical groove is formed in a part of the peripheral wall of the housing boss 99 to allow the horizontal portion of the winding portion 91 to pass therethrough.
  • a ceiling wall of the inner case 38 is provided with an insertion hole 100 through which the storage boss 99 and the terminal connection portion 92 are inserted.
  • the peripheral surface of the insertion hole 100 is close to and surrounds the outer peripheral surface of the tip (lower end) of the storage boss 99 .
  • the insertion hole 100 can protect the tip of the storage boss 99 from external force and prevent damage such as deformation.
  • a terminal block 101 projects from the upper surface of the lower portion 44 of the base case 42 so as to face the housing boss 99 when the discharge portion 16 is mounted.
  • the terminal block 101 is formed in the shape of a rectangular tube that opens upward, and the spring receiving portion 96 of the first terminal 85 is arranged inside.
  • the first conducting body 87 moves integrally with the discharge portion 16 , and the terminal connection portion 92 is separated from the first terminal 85 so as to be in a compressed state.
  • the natural length L1 With respect to this natural length L1, the depth D1 of the storage hole 98 (the height of the storage boss 99) is set to a dimension that satisfies the inequality (L1/2 ⁇ D1 ⁇ L1). If the depth D1 of the housing hole 98 is larger than half of the natural length L1 of the terminal connecting portion 92, that is, if the upper half of the terminal connecting portion 92 is housed in the housing hole 98, it is relatively easy to buckle.
  • the buckling can be prevented accurately.
  • the depth D1 is set to half the natural length L1 of the terminal connection portion 92.
  • the lower end of the terminal connection portion 92 in the natural length L1 is located above the lower end of the discharge case 34, and according to this, when the discharge portion 16 separated from the base portion 15 is placed on a desk or the like, the terminal By preventing the connecting part 92 from touching the tabletop, that is, from being compressed, deterioration of the terminal connecting part 92 can be suppressed and the life of the terminal connecting part 92 can be extended.
  • each of the second current-carrying bodies 88 is made of one conductor (metal wire) and is formed in the shape of a compression coil spring whose axial direction is the vertical direction.
  • the first conductor 87 is connected to the first electrode 31 of the discharge section 16 and is separable from the first terminal 85 of the base section 15
  • the second conductor 88 is connected to the first terminal 85 of the base section 15 . It is connected to two terminals 86 and is separable from the second electrode 32 of the discharge section 16 .
  • each second conductor 88 is vertically compressed and its upper end is elastically brought into close contact with the lower surface of the second electrode 32 .
  • cylindrical storage bosses 105 and 106 that define the storage hole 104 for the second conductor 88 are protruded upward and downward.
  • the lower half of the second conductor 88 excluding the upper end is accommodated in the housing hole 104.
  • Damage such as deformation can be prevented by protecting the majority portion from external force.
  • a protruding end (lower end) of the lower housing boss 106 abuts on the second terminal 86 and surrounds the connecting (crimped) portion between the second terminal 86 and the second conductor 88 .
  • the tip (upper end) of the upper housing boss 105 is not in contact with the lower surface of the second electrode 32 and is close to the lower surface of the second electrode 32 when the discharge section 16 is attached to the base section 15 . Also, at this time, the upper end of the second conductor 88 protrudes from the tip of the upper housing boss 105 , ie, the upper opening of the housing hole 104 , and comes into close contact with the lower surface of the second electrode 32 .
  • the upper facing wall 51 and the cushion material 58 of the inner case 38 of the discharge section 16 are provided with insertion holes 107 and 108 through which the upper housing boss 105 is inserted.
  • the inner peripheral surfaces of the insertion holes 107 and 108 are close to and surround the outer peripheral surface of the upper housing boss 105 .
  • These insertion holes 107 and 108 prevent the upper housing boss 105 from being displaced in the horizontal direction with respect to the second electrode 32 , thereby ensuring that the second conductor 88 is properly positioned on the second electrode 32 . can be abutted.
  • the outer peripheral surface of the tip portion of the upper storage boss 105 is tapered upward, and the lower portion of the insertion hole 107 of the upper facing wall 51 through which the boss 105 is inserted is tapered downward. ing. These tapered surfaces allow the upper housing boss 105 to be easily guided into the insertion hole 107 when the discharge section 16 is attached to the base section 15 .
  • the depth D2 of the storage hole 104 is set to a dimension that satisfies the inequality (L2/2 ⁇ D2 ⁇ L2). If the depth D2 of the housing hole 104 is larger than half of the natural length L2 of the second conductor 88, that is, if the lower half of the second conductor 88 is housed in the housing hole 104, relatively By surrounding the vertical center of the second conductor 88, which tends to buckle, with the storage hole 104, the buckling can be reliably prevented.
  • the depth D2 is 2 of the natural length L2 of the second conductor 88.
  • the height T of the upper housing boss 105 is set smaller than half the depth D2 of the housing hole 104 (T ⁇ D2/2). According to this, the amount of protrusion of the upper housing boss 105 from the lower facing wall 52 is reduced, and the deformation and breakage of the upper housing boss 105 when receiving an external force can be well prevented.
  • the electrical connection between both 32 and 88 is stable and reliable.
  • Design tolerances such as the top and bottom thickness of the dielectric 33 can be absorbed.
  • the second electrode 32 By supporting the back side of the surface of the second electrode 32 that receives the second conductor 88 , i.e., the upper surface, with the dielectric 33 made of a glass plate, the second electrode 32 can be reinforced and prevented from being deformed. Since the dielectric 33 is sufficiently thicker than the second electrode 32, the second electrode 32 can be firmly reinforced. The upward elastic force acting on the dielectric 33 from the second conductor 88 via the second electrode 32 is firmly received by the inner receiving portion 59 of the outer case 37 .
  • the second electrode 32 and the second terminal 86 are electrically connected by a pair of second conductors 88, a connection failure may occur between one of the second conductors 88 and the second electrode 32 or the second terminal 86.
  • the spring constants of the pair of second conductors 88 are the same, and according to this, the elastic force acting on the second electrode 32 is made uniform without being biased toward either the front or the rear, and both the second conductors 88 are arranged in the same direction. It can be brought into close contact with the two electrodes 32 to stabilize the electrical connection therebetween.
  • the upward elastic force acting on the second electrode 32 from each second conductor 88 also acts on the first electrode 31 via the dielectric 33 .
  • the synergistic effect of this upward elastic force and the elastic force of the winding part 91 of the first conductor 87 pulling the one end of the electrode connection part 90 downward allows the electrode connection part 90 to adhere closely to the peripheral surface of the first electrode 31 . more improved.
  • the first terminal 85 (spring receiving portion 96) is arranged only at one left and right end (here, the left end) of the base portion 15, whereas the first conductor 87 is located at the first electrode 31. are located on the left and right ends of the Only one of them, the first conducting member 87 , is brought into close contact with the first terminal 85 when the discharge portion 16 is attached, and contributes to conducting electricity from the first terminal 85 to the first electrode 31 .
  • the pair of second conductors 88 are arranged only on one left and right side (right side in this case) of the base portion 15, the insertion holes 107 and 108 for allowing them to pass through are arranged on both left and right sides of the discharge portion 16. ing. Only one of these insertion holes 107 and 108 allows the second conductor 88 to pass therethrough when the discharge section 16 is attached, and contributes to energization from the second terminal 86 to the second electrode 32 .
  • the reason why the first conductors 87 are arranged on both the left and right sides of the first electrode 31 and the insertion holes 107 and 108 are arranged on both the left and right sides of the discharge section 16 is that the discharge section 16 is arranged in two directions around the vertical axis as described above. This is due to the rotational symmetry.
  • the discharge portion 16 is attached to the base portion 15 in the first posture, the first conductor 87 on the left side and the insertion holes 107 and 108 on the right side exhibit their functions, and when the discharge portion 16 is attached in the second posture. , the first conductor 87 on the right side and the insertion holes 107 and 108 on the left side exhibit their functions.
  • the electrodes 31 and 32 and the terminals 85 and 86 are electrically connected to the electrodes 31 and 32 and the terminals 85 and 86 through the conductors 87 and 88 regardless of whether the discharge section 16 having two rotational symmetry is attached to the base section 15 in the first posture or the second posture.
  • This allows a user-friendly discharge device 6 in which the user does not have to worry about the orientation of the discharge section 16 when the discharge section 16 is attached.
  • the terminal block 101 or the like is not provided at the diagonal position of the first terminal 85 (spring receiving portion 96) in the plan view of the base case 42. Therefore, when the terminal connection portion 92 of one of the first conductors 87 is brought into close contact with the first terminal 85, the terminal connection portion 92 of the other first conductor 87 is extended to its natural length and attached to the lower stage of the base case 42. It faces the upper surface of the part 44 . In other words, it is possible to prevent the terminal connection portion 92 from being compressed, thereby suppressing its deterioration and extending its life. Further, the position where the second electrode 32 is brought into close contact with the second conductor 88 differs between the first posture and the second posture of the discharge portion 16 . According to this, the wear of the second electrode 32 can be suppressed and the life of the second electrode 32 can be extended.
  • the spring receiving portion 96 of the first terminal 85 that receives the first conductor 87 is arranged in the lower part 44 of the base case 42 , whereas the second conductor 88 extending from the second terminal 86 is located in the upper part of the case 42 . It is arranged in the portion 43 . That is, the pair of terminals 85 and 86 and the conductors 87 and 88 are arranged separately in the upper and lower step portions 43 and 44 of the base case 42 .
  • the second electrode 32 is formed in a horizontally long rectangular shape that is one size smaller than the dielectric 33 .
  • An extending air gap 110 is provided. That is, the second electrode 32 is divided into a first region 111 on the front side and a second region 112 on the rear side with the air gap 110 as a boundary, and the two regions 111 and 112 are separated only by the bridging portions 113 at three locations on the left and right. Contiguous.
  • the bridging portions 113 are arranged at the left-right center and both ends of the second electrode 32 .
  • Each bridging portion 113 is formed (film-formed) at the same time as the first region 111 and the second region 112, but may be formed separately from these regions 111 and 112.
  • the entire second electrode 32 is arranged inside the periphery of the dielectric 33 , thereby reliably preventing discharge between the electrodes 31 and 32 not through the dielectric 33 . .
  • the peripheral portion of the cushion material 58 is in close contact with the dielectric 33, and the peripheral portion of the second electrode 32 is formed between the dielectric 33 and the cushion material 58 over the entire circumference. is sealed between According to this, it is possible to more reliably prevent discharge from occurring between the peripheral portion of the second electrode 32 and the first electrode 31 without the dielectric 33 interposed therebetween.
  • a gap 110 is provided in the front and rear center of the second electrode 32 , that is, directly below the first electrode 31 in order to increase the amount of ozone generated by performing this silent discharge over a wide range. Due to the presence of this gap 110, more charges on the surface of the dielectric 33 gather in front and behind the first electrode 31 (above the first region 111 and the second region 112) than directly under the first electrode 31. As a result, the dielectric Discharge occurs over a wide area on the surface of body 33 .
  • the air gap 110 can prevent the discharge from concentrating directly under the first electrode 31, where white dust (nitrate) that hinders the discharge tends to accumulate. When the discharge is generated before and after the first electrode 31 where dust accumulation is relatively small, the amount of discharge is maintained for a relatively long period of time, and as a result, the chances of prompting the user to clean the discharge section 16 are reduced. can be done.
  • the width W1 of the first electrode 31 in the front-rear direction is 1 mm, which corresponds to its diameter, while the width W2 of the gap 110 in the same direction is set at 2 mm.
  • the width W2 of the gap 110 is set to be larger than the width W1 of the first electrode 31, the amount of charge collected on the surface of the dielectric 33 just below the first electrode 31 can be reduced, and the discharge can be spread over a wider area.
  • the vertical height H1 of the first electrode 31 is 1 mm, which is equal to its diameter, while the vertical thickness H2 of the dielectric 33 is set to 0.7 mm. ing.
  • the thickness H2 of the dielectric 33 is set to be smaller than the height H1 of the first electrode 31, the imaginary line connecting the front and rear edges of the second electrode 32 and the first electrode 31 is moved from the vertical to the horizontal, and the dielectric 33 is The surface charge distribution can be closer to its leading and trailing edges, thereby spreading the discharge over a wider area.
  • the mounting and holding means for holding the discharge section 16 in the mounted state are provided in the first magnetized body 53 provided in the discharge section 16 and the base section 15. It is composed of the second magnetized body 54 provided.
  • the discharge section 16 is held in the mounted state by the attraction force acting between the two magnetically attracted bodies 53 and 54 .
  • This attracting force does not decrease due to repeated attachment and detachment of the discharge section 16, and is less susceptible to variations in the dimensions of the magnetized bodies 53 and 54, and its size is substantially constant. Therefore, even if there is some variation in the dimensions of the magnetized bodies 53 and 54, the discharge section 16 can be held in the mounted state with just the right amount of attractive force.
  • the mounting and holding means can stably perform its function over a long period of time, and the mounting and holding means does not require high precision, so that the discharge device can be manufactured with a high yield. 6 can be provided.
  • the edges of the facing walls 51 and 52 are arranged.
  • the mounting state of the discharge section 16 can be maintained in a good condition without arranging a magnetically attached body in the section.
  • the number of magnetically attracted bodies 53 and 54 required to maintain the mounting state of the discharge section 16 can be reduced, and the discharge device can be manufactured at low cost.
  • both the facing walls 51 and 52 in the mounted state of the discharge portion 16 can be displaced.
  • relative movement in the horizontal direction can be regulated by the engaging convex portion 47 and the engaging concave portion 48 .
  • the first magnetic member 53 is attached to the upper facing wall 51.
  • the position can be easily determined by the operator when attaching, and in addition, the first magnetized body 53 can be surrounded by the upper accommodation recess 55 to restrict its horizontal displacement.
  • the engaging convex portion 47 and the engaging concave portion 48 are engaged with each other.
  • the two magnetized bodies 53 and 54 are vertically opposed to each other, that is, they are attracted to each other, so that the mounting state of the discharge section 16 can be maintained well.
  • the wall surface of the lower accommodating recess 56 regulates the positional displacement of the second magnetic member 54 in the horizontal direction. be able to.
  • the strength of the base end portion can be increased, and the enclosing frame 57 can be well prevented from being damaged from the base.
  • the second magnetized body 54 When the second magnetized body 54 is formed in a non-circular plate-like or columnar shape, its rotation about its vertical axis is restricted by the wall surface of the lower housing recess 56 or the surrounding frame 57, so that the mounting state of the second magnetized body 54 is controlled. can be made more stable.
  • FIG. 15 shows a second embodiment of the discharge device according to the present invention, and the point that the enclosing frame 57 on the lower surface of the lower facing wall 52 of the base case 42 is omitted is the first embodiment. It differs from the embodiment.
  • the lower accommodation recess 56 of this embodiment is formed in the shape of an upward depression in the center of the lower surface of the lower facing wall 52 .
  • the lower accommodating recess 56 is shallower than that of the first embodiment, and accommodates only the upper half of the square block-shaped second magnetized member 54 .
  • Others are the same as in the first embodiment, so the same members are denoted by the same reference numerals, and descriptions thereof are omitted. The same applies to the third and subsequent embodiments.
  • FIG. 16 shows a third embodiment of the discharge device according to the present invention, in which the base portion 15 has a holder case 115 for holding the second magnetized body 54 separately from the base case 42. It differs from the second embodiment in that it is provided.
  • the holder case 115 is formed in the shape of a square box with an open top, and the square block-shaped second magnetized body 54 is completely accommodated inside. The top surfaces of the second magnetized body 54 and the holder case 115 are flush with each other.
  • the lower accommodating recess 56 of the lower facing wall 52 of the base case 42 is formed to have front-rear and lateral dimensions capable of accommodating the upper portion of the holder case 115 .
  • the holder case 115 is made of the same kind of plastic material as the base case 42. By joining the holder case 115 to the lower surface of the base case 42 by welding or the like, the second magnetized body 54 is attached to the base case 42. installed.
  • bonding between plastics is easier and stronger than bonding between plastics and metals. It is possible to more reliably prevent the second magnetized body 54 from falling off from the base case 42, as compared with the case where it is fixedly attached. Further, by surrounding the four sides of the upper part of the holder case 115 with the walls of the lower accommodation recess 56, the horizontal shift movement and the rotation about the vertical axis of the holder case 115 and the second magnetized body 54 held thereon can be suppressed. can be regulated.
  • FIG. 17 shows a discharge device according to a fourth embodiment of the present invention, which is different from the second embodiment in that the lower housing recess 56 for housing the second magnetized body 54 is omitted.
  • the second magnetized body 54 of this embodiment is adhesively fixed to the center of the lower surface of the lower facing wall 52 , that is, to the back side of the engaging recess 48 .
  • the adhered surface of the lower opposing wall 52 protrudes downward from its periphery and has substantially the same shape as the upper surface (adhesive surface) of the second magnetized body 54 .
  • the surface to be adhered functions as an indicator 117 that indicates the attachment position of the second magnetized body 54 . It can be said that the lower accommodating recessed portion 56 of each of the above-described embodiments also functions as the pointing portion 117 in the same manner.
  • FIG. 18 shows a fifth embodiment of the discharge device according to the present invention, which is different from the first embodiment in that an operation lever 129 for separating the discharge section 16 from the base section 15 is provided.
  • the operation lever 129 is supported by the base portion 15 so as to be vertically swingable around a fulcrum 130 consisting of a horizontal shaft. is provided.
  • a force in the opposite direction that is, an upward force acts on the discharge portion 16 from the action portion 131 , and this force acts on the first magnetized body 53 and the second magnetized body 54 .
  • the discharge portion 16 separates from the base portion 15 .
  • the attachment detection section 17 is composed of a microswitch provided on the base section 15, and its passive pin 133 is arranged so as to face the lower surface of the discharge section 16.
  • a booster circuit (transformer) 22 is built in the base portion 15 .
  • the attachment detection portion 17 outputs a signal to the control portion 21 .
  • Control unit 21 determines that discharge unit 16 is attached to base unit 15 and supplies voltage to booster circuit 22 in the ON state when the signal is received.
  • the control unit 21 determines that the discharge unit 16 is separated from the base unit 15, and immediately interrupts the voltage supply to the booster circuit 22. .
  • the mounting detection section 17 is configured with a microswitch as in the present embodiment, the mounting detection section 17 can be properly operated even if the second magnetized body 54 of the base section 15 is configured with a permanent magnet.
  • FIG. 19 shows a sixth embodiment of the discharge device according to the present invention, which differs from the fifth embodiment in that the booster circuit (transformer) 22 is arranged on the discharge section 16 side. differ.
  • the base portion 15 incorporates a power supply portion 136 that supplies a drive voltage to the booster circuit 22 .
  • the tips of the pair of output connectors 137 extending from the power supply section 136 and the pair of input connectors 138 extending from the booster circuit 22 come into contact with each other.
  • both connectors 137 and 138 are electrically connected, and a DC voltage of, for example, several volts is supplied from the power supply unit 136 to the booster circuit 22 .
  • the first magnetized body 53 is arranged between the pair of input connectors 138 of the discharge section 16
  • the second magnetized body 54 is arranged between the pair of output connectors 137 of the base section 15 .
  • the first magnetized body 53 and the second magnetized body 54 of the present embodiment hold the discharge section 16 in the attached state by the attraction force acting between them 53 and 54, and connect the output connector 137 and the input connector 138. (contact) state. According to the present embodiment, even if the discharge section 16 is separated from the base section 15 while the power supply section 136 is being driven and the user touches the output connector 137, the voltage applied to the output connector 137 is low. , the risk of electric shock is extremely low.
  • FIG. 20 shows a seventh embodiment of the discharge device according to the present invention, in that both electrodes 31 and 32 are needle-shaped and their tips face each other, and The difference from the first embodiment is that the dielectric 33 is not interposed between the electrodes 31 and 32 .
  • FIG. The discharge device 6 of this embodiment can be applied to an ionizer (ion generator) that generates negative ions and hydroxyl radicals.
  • the shape of the first electrode 31 and the second electrode 32 is arbitrary, and in addition to the rod shape (including needle shape) and film shape shown in the above embodiments, they may be formed in a flat plate shape, a cylindrical shape, an annular shape, or the like. , and an electrode pair formed by appropriately combining these can be used.
  • FIGS. 21 and 22 show an eighth embodiment of the discharge device according to the present invention, in which the mounting and holding means is composed of two sets of the first magnetic body 53 and the second magnetic body 54. It is different from the first embodiment in terms of configuration and the like.
  • An inner case 38 of the discharge case 34 is provided with a pair of left and right engaging projections 47 , and a first magnetic member 53 is attached to the back side (upper side) of each engaging projection 47 with an upper facing wall 51 interposed therebetween.
  • An upper accommodation recessed portion 55 for accommodation is formed.
  • the base case 42 is provided with a pair of left and right engaging recesses 48 , and the second magnetized body 54 is accommodated on the back side (lower side) of each engaging recess 48 with the lower facing wall 52 interposed therebetween.
  • a lower housing recess 56 is formed.
  • the base portion 15 includes a bottom lid 145 that fits inside the base case 42 from below, and the bottom lid 145 closes the bottom opening of the lower housing recess 56 .
  • one second conductor 88 is arranged in the center of the base portion 15 in plan view.
  • the second electrode 32 is formed in a lying H shape as a whole, and the bridging portion 113 is provided only at the center of the second electrode 32 in the left-right direction.
  • the second conducting body 88 includes an upper conducting pin 147 that elastically adheres to the lower surface of the bridging portion 113 of the second electrode 32 and a lower conducting pin 147 that biases the conducting pin 147 upward toward the second electrode 32 . It is composed of a spring 148 and an energizing piece 149 that extends substantially horizontally continuously from the lower end of the energizing spring 148.
  • the tip of the energizing piece 149 is connected to the booster circuit 22 via a lead wire or the like.
  • the energizing pin 147 and the energizing spring 148 are housed in a housing hole 104 vertically penetrating through the center of the base case 42, and the energizing pin 147 is slidably guided on the peripheral surface of the housing hole 104 so that it can only move vertically. be done.
  • the conducting spring 148 is a compression coil spring, and its upper end is connected to the lower end of the conducting pin 147 .
  • the bottom opening of the storage hole 104 is closed with the bottom lid 145 .
  • a circular engaging hole 153 for receiving the tip (lower end) of the lower storage boss 106 is recessed in the center of the inner surface of the bottom lid 145 .
  • a cylindrical engaging projection 154 is formed to protrude into the inside of the tip of the.
  • the lower end of the conducting spring 148 is supported by the inner surface (upper surface) of the bottom lid 145 , strictly speaking, the tip end surface (upper surface) of the engaging projection 154 .
  • the engaging projection 154 is inserted into the tip of the lower storage boss 106, the vertical dimension of the storage hole 104 is reduced by that amount, so that the size of the energizing spring 148 can be reduced and the cost can be reduced.
  • one of the engaging hole 153 and the engaging projection 154 may be omitted, and only the engaging hole 153 or only the engaging projection 154 may be provided in the center of the inner surface of the bottom lid 145 .
  • the electrode support structure 64 that supports both ends of the first electrode 31 is composed only of an upper support portion 65 provided on the outer case 37 of the discharge case 34, and the lower support portion 66 of the inner case 38 is omitted. there is Each upper support portion 65 has a vertically elongated guide hole 151 through which the first electrode 31 is inserted. It is possible. The first electrode 31 in the normal state is urged downward by the winding portion 91 of the first conductor 87 and the upper spring 157 to be in close contact with the upper surface of the dielectric 33 .
  • the upper spring 157 is composed of a compression coil spring whose axial direction is the vertical direction, and is arranged inside each of the left and right upper support portions 65 .
  • a spring recess 158 that accommodates the upper portion of the upper spring 157 is provided on the inner surface of the upper support portion 65 .
  • the lower end of the upper spring 157 is in pressure contact with the outer peripheral surface of the electrode connecting portion 90 of the first conducting member 87 , whereby the downward biasing force of the upper spring 157 acts on the first electrode 31 via the electrode connecting portion 90 . .
  • the winding portion 91 may be omitted from the first conductor 87 .
  • the first electrode 31 is brought into close contact with the dielectric 33, and unintended movement of the first electrode 31 with respect to the dielectric 33 can be more reliably prevented. can.
  • the discharge device can be applied to ozonizers and ionizers, it is possible to achieve goal 3 (health and welfare for all) of the Sustainable Development Goals (SDGs) advocated by the United Nations. can contribute.
  • the discharge device can be used for sterilization of discharged air by incorporating it into equipment such as air conditioners, humidifiers, and air purifiers that discharge the treated air. Alternatively, by installing it in a refrigerator, a closet, a toilet, or the like, it can be used for deodorizing or sterilizing the space.
  • the discharge device can also be applied to an ozone water generator that dissolves ozone in water. The generated ozonized water can be used for washing machines, flush toilets, washing food and tableware, washing medical equipment, and the like.
  • Discharge device 15 Base portion 16 Discharge portion 31 First electrode 32 Second electrode 47 Engagement projection 48 Engagement recess 51 Upper facing wall 52 Lower facing wall 53 First magnetic body 54 Second magnetic body 55 Upper accommodation recess 56 lower housing recess 57 enclosing frame 115 holder case 117 indicator

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Abstract

The present invention provides an electrical discharge device in which a mounting retention means for retaining an electrical discharge unit in a mounted state is capable of exhibiting the functionality thereof in a stable manner for an extended period of time, and which does not require high precision for the mounting retention means, thereby allowing manufacturing with good yield. The mounting retention means is formed using a first magnetic body 53 provided to an electrical discharge unit 16, and a second magnetic body 54 which is provided to a base section 15 and can be magnetically attached to the first magnetic body 53. The attachment force acting between the magnetic bodies 53, 54 does not degrade due to repeated attachment and detachment of the electrical discharge unit 16, is relatively unaffected by variations in dimensions, etc., of the magnetic bodies 53, 54, and has a substantially constant magnitude. Therefore, the electrical discharge unit 16 can be retained in a mounted state at an appropriate attachment force even if there is a slight amount of variation in the dimensions, etc., of the magnetic bodies 53, 54.

Description

放電装置discharge device
　本発明は、一対の電極を含む放電部と、放電部が着脱自在に装着されるベース部とを備える放電装置に関する。この放電装置は、空気中の放電によりオゾンを発生させるオゾン発生装置（オゾナイザー）や、各種イオン（マイナスイオン、ヒドロキシラジカル等）を発生させるイオン発生装置（イオナイザー）などに適用することができる。 The present invention relates to a discharge device including a discharge section including a pair of electrodes and a base section to which the discharge section is detachably attached. This discharge device can be applied to an ozone generator (ozonizer) that generates ozone by electric discharge in the air, an ion generator (ionizer) that generates various ions (negative ions, hydroxyl radicals, etc.).
　この種の放電装置に係る先行技術文献としては、例えば特許文献１を挙げることができる。特許文献１のオゾン殺菌消臭装置は、隔壁の上下に配置されたベース部（制御ボックス）と放電部（出力部）で構成されており、オゾン発生機構を含む放電部が、電源部等を含むベース部に対して着脱自在とされている。放電部は、オゾン発生機構としての一対の電極と、両電極を支持する基盤と、各電極から伸びるピン状の端子などを備えており、各端子が基盤の表面から外方へ突出している。これらの端子を隔壁を介してベース部に差し込むと、放電部がベース部に装着されて、一対の電極とベース部の電源部とが電気的に接続される。このように、ベース部に対して放電部が着脱自在であると、オゾン殺菌消臭装置のうち比較的劣化しやすい放電部（オゾン発生機構）のみを交換することができ、装置の全体を交換する場合に比べて経済的である。 Patent Document 1, for example, can be cited as a prior art document related to this type of discharge device. The ozone sterilization and deodorizing device of Patent Document 1 is composed of a base portion (control box) and a discharge portion (output portion) arranged above and below a partition wall, and the discharge portion including an ozone generation mechanism drives a power supply portion and the like. It is detachable with respect to the base portion including. The discharge section includes a pair of electrodes as an ozone generating mechanism, a base for supporting both electrodes, pin-shaped terminals extending from each electrode, and the like, and each terminal protrudes outward from the surface of the base. When these terminals are inserted into the base through the partition wall, the discharge section is attached to the base and the pair of electrodes and the power supply section of the base are electrically connected. In this way, if the discharger is detachable from the base, only the discharger (ozone generating mechanism) of the ozone sterilization and deodorizing device, which is relatively susceptible to deterioration, can be replaced, and the entire device can be replaced. It is economical compared to the case of
特開２００５－７３８４６号公報JP-A-2005-73846
　特許文献１のオゾン殺菌消臭装置では、ピン状の端子の差し込みにより放電部がベース部に装着されており、端子とベース部の間に作用する摩擦力により放電部が装着状態に保持される。このようなピン状の端子を要素とする装着保持手段によれば、着脱の繰り返しにより端子等が摩耗し、放電部を装着状態に保持する摩擦力が弱くなるおそれがある。加えて、端子の径寸法に高い精度が要求される。つまり、端子が許容範囲を超えて太ければ、端子の抜き差しに強い力が必要になり、放電部の着脱を軽快に行えない。逆に、端子が許容範囲を超えて細ければ、放電部の意図しない分離を招きやすくなる。 In the ozone sterilization deodorizer of Patent Document 1, the discharge section is attached to the base section by inserting a pin-shaped terminal, and the discharge section is held in the attached state by the frictional force acting between the terminal and the base section. . With such a mounting and holding means having a pin-shaped terminal as an element, the terminals and the like may wear due to repeated mounting and demounting, weakening the frictional force that holds the discharge section in the mounted state. In addition, high precision is required for the diameter dimension of the terminal. In other words, if the terminal is thicker than the allowable range, a strong force is required to insert and remove the terminal, and the discharge section cannot be easily attached and detached. Conversely, if the terminals are unacceptably thin, unintended separation of the discharge section is more likely to occur.
　本発明は、放電部を装着状態に保持するための装着保持手段が、その機能を長期にわたって安定的に発揮することができ、しかも装着保持手段について高い精度を必要とせず、従って歩留まり良く製造が可能な放電装置を提供することを目的とする。 According to the present invention, the mounting and holding means for holding the discharge section in the mounted state can stably exhibit its function over a long period of time, and the mounting and holding means does not require high precision, and therefore can be manufactured with high yield. It is an object of the present invention to provide a discharge device capable of
　本発明に係る放電装置は、一対の電極３１・３２を含む放電部１６と、放電部１６が着脱自在に装着されるベース部１５とを備えており、放電部１６を装着状態に保持するための装着保持手段が、放電部１６に設けられる第１磁着体５３と、ベース部１５に設けられて第１磁着体５３に磁着可能な第２磁着体５４とで構成されていることを特徴とする。 The discharge device according to the present invention includes a discharge section 16 including a pair of electrodes 31 and 32, and a base section 15 to which the discharge section 16 is detachably mounted. is composed of a first magnetic body 53 provided in the discharge section 16 and a second magnetic body 54 provided in the base section 15 and capable of being magnetically attached to the first magnetic body 53. It is characterized by
　放電部１６の装着状態において、放電部１６の上対向壁５１とベース部１５の下対向壁５２とが上下に対向しており、第１磁着体５３が上対向壁５１の中央に配置され、第２磁着体５４が下対向壁５２の中央に配置されている形態を採ることができる。 In the mounted state of the discharge section 16 , the upper facing wall 51 of the discharging section 16 and the lower facing wall 52 of the base section 15 face each other vertically, and the first magnetized body 53 is arranged in the center of the upper facing wall 51 . , the second magnetized body 54 can be arranged in the center of the lower facing wall 52. As shown in FIG.
　放電部１６の装着状態において、放電部１６の上対向壁５１とベース部１５の下対向壁５２とが上下に対向しており、上対向壁５１と下対向壁５２の一方に係合凸部４７が設けられ、他方に係合凸部４７を受け入れる係合凹部４８が設けられている形態を採ることができる。 In the mounted state of the discharge section 16, the upper facing wall 51 of the discharging section 16 and the lower facing wall 52 of the base section 15 face each other vertically, and one of the upper facing wall 51 and the lower facing wall 52 is provided with an engaging protrusion. 47 is provided, and an engaging concave portion 48 for receiving the engaging convex portion 47 is provided on the other side.
　係合凸部４７が上対向壁５１の下面から下向きに突出しており、上対向壁５１の上面における係合凸部４７の裏側に、第１磁着体５３を収容する上収容凹部５５が形成されている形態を採ることができる。 The engagement protrusion 47 protrudes downward from the lower surface of the upper facing wall 51 , and the upper accommodation recess 55 for accommodating the first magnetized body 53 is formed on the back side of the engagement protrusion 47 on the upper surface of the upper facing wall 51 . can take any form.
　係合凹部４８が下対向壁５２の上面に設けられており、下対向壁５２の下面における係合凹部４８の裏側に第２磁着体５４が取り付けられている形態を採ることができる。 The engaging recess 48 is provided on the upper surface of the lower facing wall 52 , and the second magnetized body 54 is attached to the back side of the engaging recess 48 on the lower surface of the lower facing wall 52 .
　下対向壁５２の下面に、第２磁着体５４の取り付け位置を示す指示部１１７が設けられている形態を採ることができる。 A configuration can be adopted in which an indicator 117 indicating the mounting position of the second magnetized body 54 is provided on the lower surface of the lower facing wall 52 .
　ベース部１５が、下対向壁５２を有するベースケース４２と、第２磁着体５４を保持するホルダーケース１１５とを備えており、ベースケース４２とホルダーケース１１５が共にプラスチック材料で形成されて、互いに接合されている形態を採ることができる。 The base portion 15 includes a base case 42 having a lower facing wall 52 and a holder case 115 that holds the second magnetized body 54. Both the base case 42 and the holder case 115 are made of plastic material, A form in which they are joined to each other can be adopted.
　下対向壁５２の下面に、第２磁着体５４の少なくとも上部を収容する下収容凹部５６が設けられている形態を採ることができる。 A form in which a lower accommodation recess 56 that accommodates at least the upper portion of the second magnetized body 54 is provided on the lower surface of the lower facing wall 52 can be adopted.
　下対向壁５２の下面に、第２磁着体５４の少なくとも上部を囲む周回状の囲み枠５７が突設されている形態を採ることができる。 A form in which a circumferential surrounding frame 57 surrounding at least the upper part of the second magnetized body 54 protrudes from the lower surface of the lower facing wall 52 can be adopted.
　囲み枠５７の基端部が先端部よりも厚く形成されている形態を採ることができる。 A form in which the base end portion of the surrounding frame 57 is formed thicker than the tip end portion can be adopted.
　第２磁着体５４が非円形の板状または柱状に形成されている形態を採ることができる。 A form in which the second magnetized body 54 is formed in a non-circular plate shape or columnar shape can be adopted.
　本発明に係る放電装置においては、放電部１６を装着状態に保持するための装着保持手段を、放電部１６に設けられる第１磁着体５３と、ベース部１５に設けられる第２磁着体５４とで構成した。換言すれば、両磁着体５３・５４の間に作用する吸着力で、放電部１６を装着状態に保持するようにした。この吸着力は放電部１６の着脱の繰り返しにより低下することは無く、しかも各磁着体５３・５４の寸法等のばらつきの影響を受け難く、その大きさはほぼ一定である。そのため、各磁着体５３・５４の寸法等に多少のばらつきがあったとしても、放電部１６を過不足の無い吸着力で装着状態に保持することができ、従って、放電部１６の着脱を軽快に行えるとともに、放電部１６の意図しない分離を確実に防止できる。このように、本発明によれば、装着保持手段がその機能を長期にわたって安定的に発揮することができ、しかも装着保持手段について高い精度を必要とせず、従って歩留まり良く製造が可能な放電装置を提供することができる。 In the discharge device according to the present invention, the mounting and holding means for holding the discharge section 16 in the mounted state is composed of the first magnetic body 53 provided on the discharge section 16 and the second magnetic body provided on the base section 15. 54. In other words, the discharge section 16 is held in the mounted state by the attraction force acting between the two magnetically attracted bodies 53 and 54 . This attracting force does not decrease due to repeated attachment and detachment of the discharge section 16, and is not easily affected by variations in the dimensions of the magnetized bodies 53 and 54, and its size is substantially constant. Therefore, even if there is some variation in the dimensions of the magnetized bodies 53 and 54, the discharge section 16 can be held in the mounted state with just the right amount of attractive force. This can be performed lightly, and unintended separation of the discharge section 16 can be reliably prevented. Thus, according to the present invention, the mounting and holding means can stably exhibit its function over a long period of time, and the mounting and holding means does not require high precision, and therefore can be manufactured with a high yield. can provide.
　第１磁着体５３を放電部１６の上対向壁５１の中央に配置し、第２磁着体５４をベース部１５の下対向壁５２の中央に配置すると、各対向壁５１・５２の縁部に磁着体を配置しなくても、放電部１６の装着状態を良好に保持することができる。つまり本発明によれば、放電部１６の装着状態の保持に必要な磁着体５３・５４の個数を少なくして、放電装置を低コストで製造することができる。 When the first magnetized body 53 is arranged at the center of the upper facing wall 51 of the discharge section 16 and the second magnetized body 54 is arranged at the center of the lower facing wall 52 of the base section 15, the edges of the facing walls 51 and 52 are arranged. The mounting state of the discharge section 16 can be maintained in a good condition without arranging a magnetically attached body in the section. In other words, according to the present invention, the number of magnetically attracted bodies 53 and 54 required to maintain the mounted state of the discharge section 16 can be reduced, and the discharge device can be manufactured at low cost.
　上対向壁５１と下対向壁５２の一方に係合凸部４７を設け、他方に係合凸部４７を受け入れる係合凹部４８を設けると、放電部１６の装着状態における両対向壁５１・５２の水平方向の相対移動を係合凸部４７と係合凹部４８で規制することができる。このように両対向壁５１・５２の相対移動を規制すると、各壁５１・５２の所定の位置に設けた第１磁着体５３と第２磁着体５４を確実に上下に正対すなわち吸着させることができ、これにより放電部１６の装着状態を良好に保持することができる。 If one of the upper facing wall 51 and the lower facing wall 52 is provided with the engaging convex portion 47 and the other is provided with the engaging concave portion 48 for receiving the engaging convex portion 47, both the facing walls 51 and 52 in the mounted state of the discharge portion 16 can be displaced. relative movement in the horizontal direction can be regulated by the engaging convex portion 47 and the engaging concave portion 48 . By restricting the relative movement of both opposing walls 51 and 52 in this way, the first and second magnetized bodies 53 and 54 provided at predetermined positions on the walls 51 and 52 are reliably vertically aligned, that is, attracted. Therefore, the mounting state of the discharge section 16 can be maintained well.
　上対向壁５１の下面から係合凸部４７を下向きに突出させ、その裏側に第１磁着体５３を収容する上収容凹部５５を形成することができる。これによれば、第１磁着体５３を上対向壁５１に取り付ける際に、作業者がその位置を容易に判別することができ、加えて、第１磁着体５３を上収容凹部５５で囲んで、その水平方向の位置ズレを規制することができる。 The engaging convex portion 47 may protrude downward from the lower surface of the upper facing wall 51, and an upper accommodating concave portion 55 for accommodating the first magnetized body 53 may be formed on the back side thereof. According to this, when attaching the first magnetized body 53 to the upper facing wall 51 , the operator can easily determine the position of the first magnetized body 53 . It is possible to enclose it and regulate its horizontal positional deviation.
　下対向壁５２の上面に係合凹部４８を設け、その裏側に第２磁着体５４を取り付けることができる。第２磁着体５４を係合凹部４８の裏側に配置するとともに、第１磁着体５３を係合凸部４７の裏側に配置すると、係合凸部４７と係合凹部４８の係合と同時に両磁着体５３・５４を上下に正対すなわち吸着させて、放電部１６の装着状態を良好に保持することができる。 An engaging recess 48 is provided on the upper surface of the lower facing wall 52, and the second magnetized body 54 can be attached to the back side thereof. When the second magnetic member 54 is arranged on the back side of the engaging recess 48 and the first magnetic member 53 is arranged on the back side of the engaging convex portion 47, the engaging convex portion 47 and the engaging concave portion 48 are engaged with each other. At the same time, the two magnetized bodies 53 and 54 are vertically opposed to each other, that is, they are attracted to each other, so that the mounting state of the discharge section 16 can be maintained well.
　下対向壁５２の下面に、第２磁着体５４の取り付け位置を示す指示部１１７を設けると、第２磁着体５４を下対向壁５２に取り付ける際に、作業者がその位置を容易に判別することができ、その作業性が向上する。 By providing an indicator 117 indicating the mounting position of the second magnetized body 54 on the lower surface of the lower facing wall 52, the operator can easily determine the position when mounting the second magnetized body 54 to the lower facing wall 52. It can be discriminated, and the workability is improved.
　第２磁着体５４をプラスチック製のホルダーケース１１５で保持し、これをプラスチック製のベースケース４２に接合する形態を採ることができる。一般的にプラスチックどうしの接合は、プラスチックと金属の接合に比べて容易かつ強固であるため、ホルダーケース１１５を介して第２磁着体５４をベースケース４２に間接的に取り付けると、これを直接的に取り付ける場合に比べて、第２磁着体５４がベースケース４２から脱落することをより確実に防止することができる。 A configuration can be adopted in which the second magnetized body 54 is held by a plastic holder case 115 and joined to the plastic base case 42 . In general, bonding between plastics is easier and stronger than bonding between plastics and metals. It is possible to more reliably prevent the second magnetized body 54 from falling off from the base case 42, as compared with the case where it is fixedly attached.
　下対向壁５２の下面に、第２磁着体５４の少なくとも上部を収容する下収容凹部５６を設けると、下収容凹部５６の壁面で第２磁着体５４の水平方向の位置ズレを規制することができる。 When a lower accommodating recess 56 for accommodating at least the upper portion of the second magnetic member 54 is provided on the lower surface of the lower facing wall 52 , the wall surface of the lower accommodating recess 56 regulates the positional displacement of the second magnetic member 54 in the horizontal direction. be able to.
　下対向壁５２の下面に、第２磁着体５４の少なくとも上部を囲む周回状の囲み枠５７を突設すると、囲み枠５７の壁面で第２磁着体５４の水平方向の位置ズレを規制することができる。 When a circumferential surrounding frame 57 surrounding at least the upper part of the second magnetized body 54 is projected from the lower surface of the lower facing wall 52 , the wall surface of the surrounding frame 57 regulates the horizontal displacement of the second magnetized body 54 . can do.
　囲み枠５７の基端部を厚く形成すると、該基端部の強度を高めて、囲み枠５７が根元から破損することをよく防止することができる。 By forming the base end portion of the enclosing frame 57 thick, the strength of the base end portion can be increased, and the enclosing frame 57 can be well prevented from being damaged from the base.
　第２磁着体５４を非円形の板状または柱状に形成すると、その垂直軸まわりの回転を下収容凹部５６または囲み枠５７の壁面で規制して、第２磁着体５４の取り付け状態をより安定化させることができる。 When the second magnetized body 54 is formed in a non-circular plate-like or columnar shape, its rotation about its vertical axis is restricted by the wall surface of the lower housing recess 56 or the surrounding frame 57, so that the mounting state of the second magnetized body 54 is controlled. can be made more stable.
本発明の第１実施形態に係る放電装置の縦断正面図である。1 is a longitudinal front view of a discharge device according to a first embodiment of the present invention; FIG. 同放電装置を搭載するオゾナイザーを模式的に示す縦断正面図である。Fig. 2 is a longitudinal front view schematically showing an ozonizer equipped with the discharge device; オゾナイザーの制御系を示すブロック図である。3 is a block diagram showing the control system of the ozonizer; FIG. 同放電装置の斜視図である。It is a perspective view of the same discharge device. 同放電装置の分解斜視図である。It is an exploded perspective view of the same discharge device. 同放電装置を構成する放電部とベース部の斜視図である。FIG. 3 is a perspective view of a discharge portion and a base portion that constitute the same discharge device; 図１におけるＢ－Ｂ線断面図である。FIG. 2 is a cross-sectional view taken along the line BB in FIG. 1; 放電部の構成部材の縦断側面図である。4 is a longitudinal side view of constituent members of the discharge section; FIG. 図１におけるＡ－Ａ線断面図である。FIG. 2 is a cross-sectional view taken along the line AA in FIG. 1; 分離された放電部とベース部の図１におけるＡ－Ａ線断面図である。FIG. 2 is a sectional view taken along the line AA in FIG. 1 of the separated discharge part and base part; 図１におけるＣ－Ｃ線断面図である。FIG. 2 is a sectional view taken along line CC in FIG. 1; 分離された放電部とベース部の図１におけるＣ－Ｃ線断面図である。FIG. 2 is a cross-sectional view taken along line CC in FIG. 1 of the separated discharge portion and base portion; ベース部と裏返した放電部の平面図である。It is a top view of a base part and a discharge part turned over. 放電部を構成する電極対の平面図である。FIG. 2 is a plan view of an electrode pair that constitutes a discharge section; 本発明の第２実施形態に係る放電装置のベース部の縦断側面図である。FIG. 7 is a longitudinal side view of the base portion of the discharge device according to the second embodiment of the present invention; 本発明の第３実施形態に係る放電装置のベース部の縦断側面図である。FIG. 11 is a longitudinal side view of a base portion of a discharge device according to a third embodiment of the present invention; 本発明の第４実施形態に係る放電装置のベース部の縦断側面図である。It is a longitudinal side view of the base part of the discharge device concerning 4th Embodiment of this invention. 本発明の第５実施形態に係る放電装置を模式的に示す正面図である。FIG. 11 is a front view schematically showing a discharge device according to a fifth embodiment of the invention; 本発明の第６実施形態に係る放電装置を模式的に示す正面図である。FIG. 11 is a front view schematically showing a discharge device according to a sixth embodiment of the present invention; 本発明の第７実施形態に係る放電装置を模式的に示す正面図である。FIG. 11 is a front view schematically showing a discharge device according to a seventh embodiment of the invention; 本発明の第８実施形態に係る放電装置の縦断正面図である。It is a vertical front view of the discharge device which concerns on 8th Embodiment of this invention. 同放電装置の放電部を構成する電極対の平面図である。FIG. 4 is a plan view of an electrode pair that constitutes a discharge section of the discharge device;
（第１実施形態）　本発明に係る放電装置の第１実施形態を図１ないし図１４に示す。本実施形態の放電装置は、卓上用のオゾナイザー（オゾン発生装置）に内蔵されて、空気中で放電してオゾンを発生させる役割を担う。本実施形態における前後、左右、上下とは、図２および図４に示す交差矢印と、各矢印の近傍に表記した前後、左右、上下の表示に従う。第２実施形態以降においても同様とする。 (First embodiment) Figs. 1 to 14 show a first embodiment of a discharge device according to the present invention. The discharge device of the present embodiment is incorporated in a desktop ozonizer (ozone generator) and plays a role of generating ozone by discharging in the air. Front and back, left and right, and up and down in this embodiment follow the crossed arrows shown in FIGS. The same applies to the second embodiment and subsequent embodiments.
　図２に示すように、オゾナイザー１の基体となるケーシング２は、その過半部を占める主ケース３と、主ケース３の上面に着脱自在に接合される副ケース４とからなり、両ケース３・４を接合することによりケーシング２内に略Ｌ字状の風路５が形成される。風路５内には、放電によりオゾンを発生させる放電装置６と、発生したオゾンを風路５から放出するための送風ファン７などが設けられる。風路５の吸込口８は主ケース３の右側壁に設けられており、この吸込口８に面して送風ファン７が配置されている。副ケース４の上壁左部は、右から左へ下り傾斜する傾斜面になっており、この傾斜面に風路５の吹出口９が設けられている。送風ファン７は、吸込口８から吹出口９へ向かう左向きの気流を風路５内に形成して、オゾンを含む空気を吹出口９から放出する。 As shown in FIG. 2, a casing 2 serving as a base of the ozonizer 1 is composed of a main case 3 occupying the majority of the casing and a sub case 4 detachably joined to the upper surface of the main case 3. 4, a substantially L-shaped air passage 5 is formed in the casing 2. As shown in FIG. In the air passage 5, a discharge device 6 for generating ozone by electric discharge, a blower fan 7 for discharging the generated ozone from the air passage 5, and the like are provided. A suction port 8 of the air passage 5 is provided on the right side wall of the main case 3 , and a blower fan 7 is arranged facing the suction port 8 . The left part of the upper wall of the sub-case 4 has an inclined surface that slopes down from right to left, and the outlet 9 of the air passage 5 is provided on this inclined surface. The blower fan 7 forms a leftward airflow in the air path 5 from the suction port 8 toward the blowout port 9 and discharges air containing ozone from the blowout port 9 .
　風路５は、吸込口８（上流側）から吹出口９（下流側）へ向かって、主ケース３のみで形成される上流部１１と、両ケース３・４を上下に接合して形成される中流部１２と、副ケース４のみで形成される下流部１３とに区分されている。送風ファン７は駆動源であるファンモーター１４とともに上流部１１に配置され、放電装置６は中流部１２に配置されている。放電装置６は、下側のベース部１５と上側の放電部１６からなり、ベース部１５は中流部１２の下半部すなわち主ケース３に固定され、放電部１６はベース部１５に着脱自在に装着されている。ベース部１５には、放電部１６の装着の有無を検出する装着検出部１７（図３参照）が設けられている。放電装置６の詳細については後述する。 The air passage 5 extends from the suction port 8 (upstream side) to the blowout port 9 (downstream side), and is formed by joining the upper and lower sides of the main case 3 and the upper and lower portions 11 formed only by the main case 3 . and a downstream portion 13 formed only by the sub case 4 . The blower fan 7 is arranged in the upstream section 11 together with a fan motor 14 as a drive source, and the discharge device 6 is arranged in the midstream section 12 . The discharge device 6 comprises a lower base portion 15 and an upper discharge portion 16. The base portion 15 is fixed to the lower half portion of the midstream portion 12, that is, to the main case 3, and the discharge portion 16 is detachably attached to the base portion 15. is installed. The base portion 15 is provided with a mounting detection portion 17 (see FIG. 3) for detecting whether or not the discharge portion 16 is mounted. Details of the discharge device 6 will be described later.
　中流部１２の下半部が主ケース３で区画されるのに対し、上半部は副ケース４で区画されている。そのため、主ケース３から副ケース４を分離すると、放電装置６の上面を露出させて、放電装置６のメンテナンスを行うことができる。具体的には、例えば、放電部１６をベース部１５から分離したうえで、放電部１６の表面を清掃することができる。主ケース３における副ケース４との接合面には、副ケース４の接合の有無を機械的に検出する安全スイッチ１８が設けられている。 The lower half of the midstream section 12 is partitioned by the main case 3 , while the upper half is partitioned by the sub case 4 . Therefore, when the sub case 4 is separated from the main case 3, the upper surface of the discharge device 6 is exposed and maintenance of the discharge device 6 can be performed. Specifically, for example, the surface of the discharge portion 16 can be cleaned after the discharge portion 16 is separated from the base portion 15 . A safety switch 18 for mechanically detecting whether or not the sub case 4 is joined is provided on the joint surface of the main case 3 with the sub case 4 .
　主ケース３は、オゾナイザー１の全体を制御する制御部２１と、昇圧回路（トランス）２２とを内蔵する。また主ケース３は、電源コードを介して商用電源などの電源部２３（図３参照）に接続されており、主ケース３の表面（左面）には電源投入用の電源スイッチ２４が設けられている。昇圧回路２２は、電源部２３から供給される例えば１００Ｖの交流電圧を数ｋＶに昇圧し、その高電圧を放電装置６に印加する。また主ケース３には、電源部２３から供給される交流電圧を所定値（例えば５Ｖ、１２Ｖ、２４Ｖなど）の直流電圧に変換する不図示のスイッチング電源が内蔵されている。この直流電圧は制御部２１のＩＣやファンモーター１４の駆動源となる。昇圧回路２２は、スイッチング電源から出力される直流電圧を昇圧して放電装置６に印加するものであってもよい。電源部２３は直流電圧を出力する電源アダプターであってもよく、その場合も昇圧回路２２は直流電圧を昇圧して放電装置６に印加する。 The main case 3 incorporates a control section 21 that controls the entire ozonizer 1 and a booster circuit (transformer) 22 . The main case 3 is also connected to a power supply unit 23 (see FIG. 3) such as a commercial power supply via a power cord, and a power switch 24 for turning on the power is provided on the surface (left side) of the main case 3. there is The booster circuit 22 boosts the AC voltage of, for example, 100 V supplied from the power supply unit 23 to several kV and applies the high voltage to the discharge device 6 . The main case 3 also incorporates a switching power supply (not shown) that converts the AC voltage supplied from the power supply unit 23 into a DC voltage of a predetermined value (eg, 5V, 12V, 24V, etc.). This DC voltage serves as a drive source for the IC of the control unit 21 and the fan motor 14 . The booster circuit 22 may boost the DC voltage output from the switching power supply and apply it to the discharge device 6 . The power supply unit 23 may be a power adapter that outputs a DC voltage, and in that case also, the booster circuit 22 boosts the DC voltage and applies it to the discharge device 6 .
　電源スイッチ２４がユーザーによりオン操作されると、制御部２１はまず装着検出部１７および安全スイッチ１８の出力に基づき放電部１６と副ケース４の有無を確認する。放電部１６がベース部１５に装着されていること、および、副ケース４が主ケース３に接合されていることを確認すると、制御部２１は電源部２３からファンモーター１４と昇圧回路２２への通電を開始する。ファンモーター１４と昇圧回路２２に電力が供給されると、送風ファン７と放電装置６が駆動する。これにより、風路５内を吸込口８から吹出口９へ向かう気流が形成されて、放電装置６の周囲で発生したオゾンを含む空気が吹出口９から吹き出される。副ケース４または放電部１６の分離が確認されると、制御部２１は昇圧回路２２などへの通電を直ちに中断するようになっており、これによれば、昇圧回路２２から高電圧が印加されている状態の電極３１・３２（後述）や端子８５・８６（後述）などにユーザーが触れてしまう感電事故を確実に防止することができる。 When the power switch 24 is turned on by the user, the control unit 21 first checks the presence or absence of the discharge unit 16 and the sub case 4 based on the outputs of the attachment detection unit 17 and the safety switch 18 . After confirming that the discharge section 16 is attached to the base section 15 and that the sub case 4 is joined to the main case 3 , the control section 21 connects the power supply section 23 to the fan motor 14 and the booster circuit 22 . Start energizing. When power is supplied to the fan motor 14 and the booster circuit 22, the blower fan 7 and the discharge device 6 are driven. As a result, an air current is formed in the air passage 5 from the suction port 8 toward the blowout port 9 , and air containing ozone generated around the discharge device 6 is blown out from the blowout port 9 . When the separation of the sub case 4 or the discharge section 16 is confirmed, the control section 21 immediately interrupts the energization to the booster circuit 22 and the like. It is possible to reliably prevent an electric shock accident in which the user touches the electrodes 31 and 32 (described later) and the terminals 85 and 86 (described later) in the closed state.
　なお、ファンモーター１４と昇圧回路２２への通電を開始するとき、制御部２１はランプからなる報知手段２７を例えば緑色に点灯させて、オゾナイザー１が駆動中であることをユーザーに知らせるようにしてもよい。また、放電部１６と副ケース４の存在を確認できない場合は、報知手段２７を例えば赤色に点灯させて、そのことをユーザーに知らせるようにしてもよい。 When starting to supply power to the fan motor 14 and the booster circuit 22, the controller 21 lights the notification means 27, which is a lamp, in green, for example, so as to notify the user that the ozonizer 1 is being driven. good too. Further, when the presence of the discharge portion 16 and the sub case 4 cannot be confirmed, the notification means 27 may be illuminated in red, for example, to inform the user of this fact.
　風路５における放電装置６の近傍には、放電部１６が放電時に発する青色光を検出する光検出部２８が設けられている。光検出部２８の具体例としては、フォトダイオードを利用したカラーセンサーやカメラなどを挙げることができる。制御部２１は、光検出部２８が検出する青色光の光量に基づいて、放電部１６の汚れ（粉塵などの堆積）の程度を判定することができる。この光量が所定値未満、すなわち汚れの程度が大きいと判定した場合、制御部２１は報知手段２７を例えば黄色に点灯させて、ユーザーに放電装置６の早期の清掃を促すことができる。 A photodetector 28 is provided near the discharge device 6 in the air passage 5 to detect the blue light emitted by the discharge section 16 during discharge. Specific examples of the light detection unit 28 include a color sensor using a photodiode, a camera, and the like. The control unit 21 can determine the degree of contamination (accumulation of dust and the like) of the discharge unit 16 based on the amount of blue light detected by the light detection unit 28 . If it is determined that the amount of light is less than a predetermined value, that is, the degree of contamination is high, the controller 21 lights the notification means 27 in, for example, yellow to prompt the user to clean the discharge device 6 early.
　図４に示すように放電装置６は、風路５内に固定されるベース部１５と、ベース部１５の上側に着脱自在に装着される放電部１６とで構成される。ベース部１５に対して放電部１６が着脱自在であると、比較的汚れやすい放電部１６をベース部１５から分離した状態で簡便に清掃することができる。また、放電部１６が故障した場合に放電部１６のみを交換することができ、ベース部１５を含む放電装置６の全体を交換する場合に比べて修理コストを削減することができる。放電装置６あるいはオゾナイザー１の製造ラインにおいて作業者が放電部１６をベース部１５に簡便に装着できる利点もある。放電部１６の全体は、垂直軸のまわりに回転対称、厳密には２回対称に形成されている。すなわち、図４に示す放電部１６の向きを第１姿勢と定義し、この第１姿勢から放電部１６を垂直軸のまわりに１８０°回転させた状態を第２姿勢と定義するとき、放電部１６を第１姿勢と第２姿勢のどちらでもベース部１５に対して適正に装着することができる。 As shown in FIG. 4, the discharge device 6 is composed of a base portion 15 fixed inside the air passage 5 and a discharge portion 16 detachably mounted on the upper side of the base portion 15 . If the discharge section 16 is detachable from the base section 15, the discharge section 16, which is relatively easily soiled, can be easily cleaned while being separated from the base section 15. FIG. Moreover, when the discharge unit 16 breaks down, only the discharge unit 16 can be replaced, and the repair cost can be reduced compared to the case where the entire discharge device 6 including the base unit 15 is replaced. There is also an advantage that an operator can easily attach the discharge section 16 to the base section 15 in the manufacturing line of the discharge device 6 or the ozonizer 1 . The entire discharge portion 16 is rotationally symmetrical about the vertical axis, strictly speaking, two-fold symmetrical. That is, when the orientation of the discharge section 16 shown in FIG. 16 can be properly attached to the base portion 15 in either the first posture or the second posture.
　放電部１６は、上下に対向する第１電極３１および第２電極３２と、両電極３１・３２の間に介在する誘電体３３と、これらを支持する放電ケース３４などで構成される。上側の第１電極３１は、左右に真っ直ぐに伸びる丸棒状に形成されて、誘電体３３の上面に当接している。下側の第２電極３２は、スパッタリングなどの成膜法によって誘電体３３の下面に形成されたフィルムで構成されている。各電極３１・３２は、銀や銅、ステンレスなどの任意の金属や合金で形成することができる。本実施形態では、第１電極３１と第２電極３２を耐食性に優れるチタンで形成した。また、丸棒状の第１電極３１の直径を１ｍｍ、フィルム状の第２電極３２の厚みを５０～１５０ｎｍとした。第２電極３２を薄いフィルムとすることにより、放電部１６を上下寸法が小さいコンパクトなものとすることができる。 The discharge section 16 is composed of a first electrode 31 and a second electrode 32 that face each other vertically, a dielectric 33 interposed between the electrodes 31 and 32, a discharge case 34 that supports them, and the like. The first electrode 31 on the upper side is formed in the shape of a round bar extending straight from side to side and is in contact with the upper surface of the dielectric 33 . The second electrode 32 on the lower side is composed of a film formed on the lower surface of the dielectric 33 by a film forming method such as sputtering. Each of the electrodes 31 and 32 can be made of any metal or alloy such as silver, copper, or stainless steel. In this embodiment, the first electrode 31 and the second electrode 32 are made of titanium, which has excellent corrosion resistance. The diameter of the round bar-shaped first electrode 31 was set to 1 mm, and the thickness of the film-shaped second electrode 32 was set to 50 to 150 nm. By using a thin film for the second electrode 32, the discharge section 16 can be made compact with a small vertical dimension.
　誘電体３３は、ガラスなどの絶縁体を素材として、左右に長い水平な矩形板状に形成されている。絶縁性のガラスの具体例としては、ホウケイ酸ガラスや石英ガラスを挙げることができる。本実施形態では誘電体３３の厚みを０．７ｍｍとした。放電ケース３４は絶縁性のプラスチックで形成されており、その上面には第１電極３１および誘電体３３を上方へ露出させる矩形状の放電開口３５が形成されている。 The dielectric 33 is made of an insulating material such as glass, and is formed in the shape of a horizontally elongated rectangular plate. Specific examples of insulating glass include borosilicate glass and quartz glass. In this embodiment, the dielectric 33 has a thickness of 0.7 mm. The discharge case 34 is made of insulating plastic, and has a rectangular discharge opening 35 formed on its upper surface to expose the first electrode 31 and the dielectric 33 upward.
　図５に示すように放電ケース３４は、上下に開口を有する矩形枠状の外ケース３７と、下向きに開口する矩形皿状の内ケース３８とで構成されており、外ケース３７の内側に下方から内ケース３８が嵌め込まれている。外ケース３７の上側の開口が先の放電開口３５として機能し、同ケース３７の下側の開口は内ケース３８で塞がれる。両ケース３７・３８の前後壁のそれぞれには、突起３９と凹部４０からなる係合構造が設けられている（図１１参照）。本実施形態では内ケース３８の前後壁の外面に突起３９を設け、外ケース３７の前後壁の内面に凹部４０を設けたが、もちろんこの配置は逆であってもよい。係合構造を両ケース３７・３８の左右壁に設けることもできる。 As shown in FIG. 5, the discharge case 34 is composed of a rectangular frame-shaped outer case 37 having top and bottom openings and a rectangular plate-like inner case 38 opening downward. An inner case 38 is fitted from the inside. The upper opening of the outer case 37 functions as the discharge opening 35 , and the lower opening of the case 37 is closed with the inner case 38 . An engagement structure consisting of a protrusion 39 and a recess 40 is provided on each of the front and rear walls of both cases 37 and 38 (see FIG. 11). In this embodiment, the projections 39 are provided on the outer surfaces of the front and rear walls of the inner case 38, and the recesses 40 are provided on the inner surfaces of the front and rear walls of the outer case 37, but this arrangement may of course be reversed. Engagement structures can also be provided on the left and right walls of both cases 37 and 38 .
　図６に示すように、ベース部１５の基体となるベースケース４２は、放電ケース３４の外ケース３７および内ケース３８と同様に絶縁性のプラスチック成形品からなり、相対的に小形の上段部４３と大形の下段部４４を一体に備える矩形かつ段付きの御立ち台状に形成されている。ベースケース４２の下段部４４は、複数個のビス４５で主ケース３に固定される。内ケース３８の内部には、上段部４３を受け入れて前後および左右から取り囲む下向きの装着凹部４６が設けられている。この装着凹部４６の底面中央には、下向きの係合凸部４７が突出形成されており、これに対応して上段部４３の天面中央には、係合凸部４７を受け入れる上向きの係合凹部４８が凹み形成されている。係合凸部４７は横断面が長方形の扁平な突起からなり、係合凹部４８は係合凸部４７より僅かに大きい長方形状の扁平な凹部で構成されている。 As shown in FIG. 6, a base case 42 serving as the base of the base portion 15 is made of an insulating plastic molded product like the outer case 37 and the inner case 38 of the discharge case 34, and has a relatively small upper step portion 43. and a large lower step portion 44 integrally formed in a rectangular stepped platform shape. A lower portion 44 of the base case 42 is fixed to the main case 3 with a plurality of screws 45 . Inside the inner case 38, a downward mounting recess 46 is provided that receives the upper step portion 43 and surrounds it from the front, rear, left and right. At the center of the bottom surface of the mounting recess 46, a downward engaging protrusion 47 is formed. A recess 48 is recessed. The engaging convex portion 47 is a flat protrusion having a rectangular cross section, and the engaging concave portion 48 is a rectangular flat concave portion slightly larger than the engaging convex portion 47 .
　放電部１６を上方からベース部１５に装着すると、図１および図７に示すように、ベースケース４２の上段部４３が放電ケース３４の内ケース３８に下方から内嵌して装着凹部４６に係合するとともに、係合凸部４７が係合凹部４８に係合する。これらの係合により、ベース部１５に対する放電部１６の水平方向のズレ動きと垂直軸まわりの回転とが規制される。なお、係合凸部４７と係合凹部４８の平面形状は長方形に限られず、例えばその他の多角形や長円形などの非円形状であれば、係合凸部４７の周囲を係合凹部４８の壁面で隙間無く囲んで、放電部１６のズレ動きと回転を規制することができる。なお、複数組の係合凸部４７と係合凹部４８を設けることもでき、この場合は両者４７・４８の平面形状にかかわらず、放電部１６のズレ動きと回転を規制することができる。 When the discharge portion 16 is attached to the base portion 15 from above, the upper step portion 43 of the base case 42 is fitted into the inner case 38 of the discharge case 34 from below and engaged with the attachment recess 46 as shown in FIGS. At the same time, the engagement protrusion 47 engages with the engagement recess 48 . These engagements restrict the horizontal displacement of the discharge section 16 with respect to the base section 15 and the rotation about the vertical axis. The planar shape of the engaging projection 47 and the engaging recess 48 is not limited to a rectangle. , the discharge portion 16 can be restricted from shifting and rotating. It is also possible to provide a plurality of sets of engaging projections 47 and engaging recesses 48, in which case displacement and rotation of the discharge portion 16 can be restricted regardless of the planar shapes of both 47 and 48.
　放電部１６の装着状態においては、内ケース３８と上段部４３の水平な天壁どうしが上下に対向する。以下では内ケース３８の天壁のうち上段部４３に対向する部分（左右両端部を除く部分）を上対向壁５１と呼称し、上段部４３の天壁を下対向壁５２と呼称する。これら対向壁５１・５２には、放電部１６がベース部１５から上方へ意図せず分離するのを規制して、放電部１６を装着状態に保持するための装着保持手段が設けられる。この装着保持手段は、内ケース３８の上対向壁５１に取り付けられた直方体状の第１磁着体５３と、上段部４３の下対向壁５２に取り付けられた矩形板状の第２磁着体５４とで構成される。本実施形態では、第１磁着体５３を永久磁石で構成し、第２磁着体５４を磁石が近付くと磁性を帯びる磁性体で構成した。なお、本実施形態とは逆に、第１磁着体５３を磁性体で構成し、第２磁着体５４を永久磁石で構成してもよく、また両磁着体５３・５４を永久磁石で構成してもよい。 In the mounted state of the discharge section 16, the horizontal ceiling walls of the inner case 38 and the upper stage section 43 face each other vertically. Hereinafter, the portion of the top wall of the inner case 38 that faces the upper stepped portion 43 (excluding the left and right end portions) will be referred to as an upper facing wall 51 , and the top wall of the upper stepped portion 43 will be referred to as a lower facing wall 52 . These opposing walls 51 and 52 are provided with attachment holding means for regulating the unintentional upward separation of the discharge section 16 from the base section 15 and holding the discharge section 16 in the mounted state. The mounting and holding means consists of a rectangular parallelepiped first magnetized body 53 attached to the upper facing wall 51 of the inner case 38 and a rectangular plate-shaped second magnetized body attached to the lower facing wall 52 of the upper stage portion 43. 54. In this embodiment, the first magnetized body 53 is composed of a permanent magnet, and the second magnetized body 54 is composed of a magnetic material that becomes magnetized when the magnet approaches. Contrary to this embodiment, the first magnetized body 53 may be composed of a magnetic material, and the second magnetized body 54 may be composed of a permanent magnet. may be configured with
　具体的には、上対向壁５１の上面中央には、上向きに開口して第１磁着体５３を収容する上収容凹部５５が形成されており、下対向壁５２の下面中央には、下向きに開口して第２磁着体５４を収容する下収容凹部５６が形成されている。上収容凹部５５に収容された第１磁着体５３の上面は、上対向壁５１の上面と略面一になっている。下収容凹部５６は、下対向壁５２の下面に突設された矩形状の囲み枠５７の内側に形成されている。囲み枠５７の基端部（上部）は先端部（下部）よりも厚く形成されている。第２磁着体５４の下面には、磁気センサーからなる先述の装着検出部１７が固定されており、装着検出部１７は第２磁着体５４とともに下収容凹部５６に収容されている。 Specifically, in the center of the upper surface of the upper opposing wall 51 , an upper accommodation recess 55 that opens upward and accommodates the first magnetized member 53 is formed. A lower accommodation recess 56 is formed which opens to accommodate the second magnetized member 54 . The upper surface of the first magnetized body 53 accommodated in the upper accommodation recess 55 is substantially flush with the upper surface of the upper facing wall 51 . The lower housing recess 56 is formed inside a rectangular surrounding frame 57 projecting from the lower surface of the lower facing wall 52 . The base end portion (upper portion) of the surrounding frame 57 is formed thicker than the tip end portion (lower portion). The mounting detection unit 17 , which is a magnetic sensor, is fixed to the lower surface of the second magnetic member 54 , and the mounting detection unit 17 is accommodated in the lower accommodation recess 56 together with the second magnetic member 54 .
　第１磁着体５３と第２磁着体５４は、任意の接着剤で収容凹部５５・５６内に接着固定することができる。あるいは、収容凹部５５・５６に収容した磁着体５３・５４の表面に樹脂ポッティングを施して、これを離脱不能に被覆することができる。樹脂ポッティングによれば、磁着体５３・５４の表面を樹脂の皮膜で覆って、その腐食などを防止することができる。第１磁着体５３に樹脂ポッティングを施す場合は、その上下厚さを上収容凹部５５の深さよりもやや小さくすることが望ましい。第２磁着体５４に樹脂ポッティングを施す場合は、これを装着検出部１７と同時に下収容凹部５６内に固定することができ、加えて装着検出部１７を樹脂で覆って保護することができる。ポッティング材料の具体例としては、弾力性に優れるウレタン樹脂、エポキシ樹脂、シリコン樹脂などを挙げることができる。 The first magnetized body 53 and the second magnetized body 54 can be adhered and fixed in the housing recesses 55 and 56 with any adhesive. Alternatively, the surfaces of the magnetized bodies 53 and 54 housed in the housing recesses 55 and 56 can be covered with resin potting so that they cannot be detached. According to the resin potting, the surfaces of the magnetized bodies 53 and 54 are covered with a resin film to prevent corrosion and the like. When resin potting is applied to the first magnetized body 53 , it is desirable that the vertical thickness thereof is slightly smaller than the depth of the upper housing recess 55 . When the second magnetized body 54 is potted with resin, it can be fixed in the lower accommodation recess 56 at the same time as the mounting detection section 17, and in addition, the mounting detection section 17 can be covered with resin and protected. . Specific examples of the potting material include urethane resin, epoxy resin, silicone resin, and the like, which are excellent in elasticity.
　装着保持手段を構成する第１磁着体５３は、上対向壁５１を挟んで係合凸部４７の裏側（上側）に配置されており、また第２磁着体５４は、下対向壁５２を挟んで係合凹部４８の裏側（下側）に配置されている。そのため、係合凸部４７を係合凹部４８に係合させたときに、第１磁着体５３は第２磁着体５４に近接する真上に位置することになり、第２磁着体５４が第１磁着体５３に確実に吸着される。この吸着力により、放電部１６のベース部１５からの意図しない上方への分離を規制することができる。第２磁着体５４の下側に位置する装着検出部１７は、永久磁石である第１磁着体５３が発する磁界を検出すると、制御部２１へ信号を出力する。制御部２１は当該信号を受信することにより、放電部１６がベース部１５に装着されていると判断することができる。第２磁着体５４をベースケース４２の上段部４３に配置すると、これを下段部４４に配置する場合に比べて、放電装置６が外力を受けたときの衝撃が第２磁着体５４まで届き難くなり、放電部１６がベース部１５から外れ難くなる。 The first magnetized body 53 constituting the mounting and holding means is arranged on the back side (upper side) of the engaging convex portion 47 with the upper facing wall 51 interposed therebetween, and the second magnetized body 54 is arranged on the lower facing wall 52 . are arranged on the back side (lower side) of the engaging recess 48 with the . Therefore, when the engaging protrusion 47 is engaged with the engaging recess 48, the first magnetic member 53 is positioned close to the second magnetic member 54 and directly above it. 54 is reliably attracted to the first magnetized body 53 . Due to this adsorption force, unintended upward separation of the discharge portion 16 from the base portion 15 can be regulated. The attachment detector 17 located below the second magnetically attached body 54 outputs a signal to the controller 21 upon detecting the magnetic field emitted by the first magnetically attached body 53 which is a permanent magnet. By receiving the signal, the control unit 21 can determine that the discharge unit 16 is attached to the base unit 15 . When the second magnetized body 54 is arranged on the upper part 43 of the base case 42 , the impact when the discharge device 6 receives an external force reaches the second magnetized body 54 , compared to the case where the second magnetized body 54 is arranged on the lower part 44 . It becomes difficult to reach, and the discharge part 16 becomes difficult to come off from the base part 15 .
　上収容凹部５５に収容された第１磁着体５３は、上収容凹部５５の壁面に前後左右の四方を囲まれることにより、水平方向のズレ動きと垂直軸まわりの回転とを規制されている。同様に、下収容凹部５６に収容された第２磁着体５４も、下収容凹部５６の壁面に前後左右の四方を囲まれることにより、水平方向のズレ動きと垂直軸まわりの回転とを規制されている。なお、第１磁着体５３と第２磁着体５４の平面形状は長方形に限られず、例えばその他の多角形や長円形などの非円形状であれば、その周囲を収容凹部５５・５６の壁面で囲んで、第１磁着体５３と第２磁着体５４のズレ動きや回転を規制することができる。放電部１６の第１磁着体５３が永久磁石であると、ベース部１５から分離した放電部１６をステンレス製のシンクなどに吸着保持させることができ、放電部１６を水洗後に乾燥させる際などに便利である。 The first magnetized body 53 accommodated in the upper accommodating recess 55 is surrounded by the walls of the upper accommodating recess 55 on all four sides, front, back, left, and right, so that it is restricted from shifting in the horizontal direction and from rotating about the vertical axis. . Similarly, the second magnetized body 54 accommodated in the lower accommodation recess 56 is also surrounded by the walls of the lower accommodation recess 56 on all four sides, front, back, left, and right, thereby restricting its movement in the horizontal direction and its rotation about the vertical axis. It is The planar shape of the first magnetized body 53 and the second magnetized body 54 is not limited to a rectangle. It is possible to restrict displacement and rotation of the first magnetized body 53 and the second magnetized body 54 by enclosing them with a wall surface. When the first magnetized body 53 of the discharge section 16 is a permanent magnet, the discharge section 16 separated from the base section 15 can be attracted and held by a stainless steel sink or the like, and when the discharge section 16 is dried after being washed with water. convenient for
　内ケース３８の上対向壁５１（および第１磁着体５３）の上面には、両面テープからなるクッション材５８を介して第２電極３２と誘電体３３が接着固定されている。クッション材５８は誘電体３３よりも一回り大きい矩形状に形成されており、第２電極３２は誘電体３３とクッション材５８によって上下から挟持される。クッション材５８の周縁部は弾性変形して誘電体３３に密着している。図７に示すように、外ケース３７の前後壁の上端部は、棒状の第１電極３１に向かって内方へ張り出しており、この張り出し部の下面には、誘電体３３の前後縁を受ける上側の内受部５９と、クッション材５８の前後縁を受ける下側の外受部６０とが階段状に形成されている。 The second electrode 32 and the dielectric 33 are adhered and fixed to the upper surface of the upper facing wall 51 (and the first magnetized body 53) of the inner case 38 via a cushion material 58 made of double-sided tape. The cushion material 58 is formed in a rectangular shape that is one size larger than the dielectric 33 , and the second electrode 32 is sandwiched between the dielectric 33 and the cushion material 58 from above and below. The peripheral portion of the cushion material 58 is elastically deformed and adheres to the dielectric 33 . As shown in FIG. 7, the upper ends of the front and rear walls of the outer case 37 protrude inward toward the rod-shaped first electrode 31, and the lower surface of this protrusion receives the front and rear edges of the dielectric 33. An upper inner receiving portion 59 and a lower outer receiving portion 60 for receiving the front and rear edges of the cushion material 58 are formed stepwise.
　誘電体３３は、外ケース３７（内受部５９）と内ケース３８（上対向壁５１）とにより上下から挟持される。誘電体３３と内ケース３８の間に位置するクッション材５８は、上から誘電体３３と外受部６０、下から内ケース３８に押されることで弾性変形して、誘電体３３の厚み寸法などの設計公差を吸収する。なお誘電体３３は、外ケース３７の内受部５９と外受部６０の間の垂直壁により前後方向に位置決めされる。また図５に示すように、外ケース３７の上部には、放電開口３５の左右縁を構成する左右一対の上壁６１が設けられており、両壁６１・６１の互いに対向する端面により、誘電体３３は左右方向に位置決めされる。 The dielectric 33 is sandwiched from above and below by the outer case 37 (inner receiving portion 59) and the inner case 38 (upper facing wall 51). The cushion material 58 positioned between the dielectric 33 and the inner case 38 is elastically deformed by being pushed by the dielectric 33 and the outer receiving portion 60 from above and by the inner case 38 from below, and the thickness dimension of the dielectric 33 and the like are elastically deformed. Absorbs design tolerances of The dielectric 33 is positioned in the front-rear direction by a vertical wall between the inner receiving portion 59 and the outer receiving portion 60 of the outer case 37 . As shown in FIG. 5, a pair of left and right upper walls 61 forming right and left edges of the discharge opening 35 are provided on the upper part of the outer case 37. The body 33 is positioned in the left-right direction.
　棒状の第１電極３１は、放電ケース３４に設けられた左右一対の電極支持構造６４で支持される。電極支持構造６４は、外ケース３７における放電開口３５の左右両側に設けられる上支持部６５と、内ケース３８の天壁の左右両端部（上対向壁５１の左右両側）から突出する下支持部６６とで構成される。上支持部６５は、外ケース３７の各上壁６１の前後中央に、左右に伸びるトンネル状に膨出形成されている。上支持部６５の内面には、第１電極３１の上半部を受ける上半円状の受溝６７が凹み形成されており、各受溝６７の左右中途部には、後述する第１通電体８７の電極接続部９０を受け入れる逃げ凹部６８が形成されている（図１参照）。各受溝６７の左右両端部のうち外側（第１電極３１の先端側）が、下支持部６６の突端面に凹み形成された下半円状の受部６９（図８参照）の真上に位置し、両者６７・６９が協同して第１電極３１を上下から挟持する。外ケース３７の左右壁の内面には、受溝６７に連続して下向きに伸びる導入溝７０（図８参照）が凹み形成されている。放電部１６の組み立ての際は、この導入溝７０に沿って第１電極３１を上方へスライドさせて、これを受溝６７に受け止められる位置まで移動させることができる。 The rod-shaped first electrode 31 is supported by a pair of left and right electrode support structures 64 provided on the discharge case 34 . The electrode support structure 64 includes upper support portions 65 provided on both left and right sides of the discharge opening 35 in the outer case 37, and lower support portions projecting from both left and right ends of the ceiling wall of the inner case 38 (left and right sides of the upper facing wall 51). 66. The upper support portion 65 is formed in the front-rear center of each upper wall 61 of the outer case 37 so as to extend laterally in a tunnel shape. An upper semi-circular receiving groove 67 for receiving the upper half of the first electrode 31 is recessed in the inner surface of the upper support portion 65 . Relief recesses 68 are formed to receive electrode connection portions 90 of body 87 (see FIG. 1). The outside of the left and right end portions of each receiving groove 67 (the tip end side of the first electrode 31) is directly above a lower semicircular receiving portion 69 (see FIG. 8) recessed in the tip surface of the lower support portion 66. , and both 67 and 69 cooperate to sandwich the first electrode 31 from above and below. An introduction groove 70 (see FIG. 8) extending downward continuously from the receiving groove 67 is formed in the inner surface of the left and right walls of the outer case 37 . When assembling the discharge section 16 , the first electrode 31 can be slid upward along the introduction groove 70 to a position where it can be received by the receiving groove 67 .
　第１電極３１と誘電体３３と第２電極３２の組を電極ユニット７１（図７参照）と定義するとき、電極ユニット７１は放電ケース３４内でクッション材５８と共に、外ケース３７と内ケース３８により上下から挟持される。具体的には、電極ユニット７１の上部を構成する第１電極３１が、外ケース３７の上支持部６５により上方から支持され、電極ユニット７１の下部を構成する第２電極３２と誘電体３３が、クッション材５８を介して内ケース３８の上対向壁５１により下方から支持される。上対向壁５１は、誘電体３３の第２電極３２側の面を受ける下受部７２、あるいは、第２電極３２を誘電体３３の裏側から受ける下受部７２を構成する。 When the set of the first electrode 31, the dielectric 33, and the second electrode 32 is defined as an electrode unit 71 (see FIG. 7), the electrode unit 71 is positioned within the discharge case 34 together with the cushioning material 58, the outer case 37 and the inner case 38. are sandwiched from above and below. Specifically, the first electrode 31 constituting the upper portion of the electrode unit 71 is supported from above by the upper support portion 65 of the outer case 37, and the second electrode 32 and the dielectric 33 constituting the lower portion of the electrode unit 71 , and is supported from below by the upper facing wall 51 of the inner case 38 via a cushion material 58 . The upper facing wall 51 constitutes a lower receiving portion 72 that receives the surface of the dielectric 33 on the second electrode 32 side, or a lower receiving portion 72 that receives the second electrode 32 from the back side of the dielectric 33 .
　放電装置６の駆動すなわち放電に伴って、放電部１６の上面、特に第１電極３１や誘電体３３の表面には、硝酸塩を主成分とする白い粉塵が堆積することがある。オゾン生成時には、空気中の窒素と酸素と水分が反応して硝酸が生じることがあり、これが硝酸塩すなわち粉塵の堆積の原因となる。この粉塵は放電の障害となるため定期的に除去することが望ましく、それには水洗いの他に清掃ブラシを用いることができる。 As the discharge device 6 is driven, that is, discharged, white dust containing nitrate as a main component may accumulate on the upper surface of the discharge section 16, particularly on the surfaces of the first electrode 31 and the dielectric 33. During ozone formation, the nitrogen, oxygen and moisture in the air can react to form nitric acid, which causes nitrate or dust deposition. Since this dust interferes with the discharge, it is desirable to remove it periodically. For this purpose, a cleaning brush can be used in addition to washing with water.
　清掃ブラシの移動方向は、第１電極３１の伸び方向に一致する左右方向とすることが望ましく、これにより、清掃ブラシの毛先を第１電極３１の一端から他端へ向かって移動させて、第１電極３１と誘電体３３の表面を同時に清掃することができる。図４に示すように、清掃ブラシの毛先を誘電体３３の表面へスムーズに導入し、また、該表面の粉塵を捕捉した毛先をスムーズに導出するため、放電ケース３４の外ケース３７の上面には、誘電体３３（放電開口３５）の左右両側に隣接する上向きの溝部７３が設けられている。誘電体３３の上面と溝部７３の底面とは面一になっている。そのため、粉塵が誘電体３３と溝部７３の間に引っ掛かるのを回避して、これを残さず容易に掃き出すことができる。 The moving direction of the cleaning brush is desirably the horizontal direction that coincides with the extending direction of the first electrode 31, so that the bristles of the cleaning brush are moved from one end of the first electrode 31 toward the other end, The surfaces of the first electrode 31 and the dielectric 33 can be cleaned simultaneously. As shown in FIG. 4, in order to smoothly introduce the bristles of the cleaning brush to the surface of the dielectric 33 and smoothly lead out the bristles that have captured the dust on the surface, the outer case 37 of the discharge case 34 is The upper surface is provided with upward grooves 73 adjacent to the left and right sides of the dielectric 33 (discharge opening 35). The top surface of dielectric 33 and the bottom surface of groove 73 are flush with each other. Therefore, the dust can be avoided from being caught between the dielectric 33 and the groove 73, and can be easily swept out without any residue.
　また、放電ケース３４の外ケース３７の上面には、誘電体３３（放電開口３５）を間にして、第１電極３１と平行に伸びる一対の突条７４が突設されている。各突条７４の左右中央部の誘電体３３に臨む側面は中央ガイド面７５を構成し、中央ガイド面７５の左右両側に連続する側面は、溝部７３を区画する端部ガイド面７６を構成する。本実施形態における溝部７３は、突条７４（端部ガイド面７６）と上壁６１と上支持部６５により区画されており、左右の各上支持部６５の前後両側に溝部７３が形成されている。 A pair of protrusions 74 extending parallel to the first electrode 31 are provided on the upper surface of the outer case 37 of the discharge case 34 with the dielectric 33 (discharge opening 35) therebetween. Side surfaces facing the dielectric 33 at the left-right central portion of each protrusion 74 constitute a center guide surface 75, and side surfaces continuing to the left and right sides of the center guide surface 75 constitute end guide surfaces 76 that partition the groove portion 73. . The groove portion 73 in this embodiment is defined by the ridge 74 (end guide surface 76), the upper wall 61, and the upper support portion 65, and the groove portion 73 is formed on both front and rear sides of the left and right upper support portions 65. there is
　各突条７４の中央ガイド面７５は、清掃ブラシの毛先を左右方向に案内するとともに、該毛先を誘電体３３の表面に留めて、該表面の的確な清掃に寄与する。左右の各端部ガイド面７６は、中央ガイド面７５に滑らかに連続している。これらガイド面７５・７６によれば、清掃ブラシの毛先を一方の溝部７３から誘電体３３の表面へスムーズに導入し、該表面から他方の溝部７３へスムーズに導出することができる。ユーザーは、例えば左側の溝部７３から清掃ブラシを導入し、同ブラシを右方へ真っ直ぐ移動させて粉塵を捕捉し、これを右側の溝部７３から掃き出すことができる。この作業を第１電極３１の前側と後側のそれぞれで行うと、粉塵の除去すなわち清掃が完了する。 The center guide surface 75 of each projection 74 guides the bristles of the cleaning brush in the left-right direction and retains the bristles on the surface of the dielectric 33, contributing to accurate cleaning of the surface. The left and right end guide surfaces 76 are smoothly continuous with the center guide surface 75 . These guide surfaces 75 and 76 allow the bristles of the cleaning brush to be smoothly guided from one groove 73 to the surface of the dielectric 33 and smoothly guided from the surface to the other groove 73 . A user can, for example, introduce a cleaning brush through the left groove 73 and move the brush straight to the right to catch dust and sweep it out of the right groove 73 . When this operation is performed on the front side and the rear side of the first electrode 31 respectively, dust removal, ie, cleaning, is completed.
　以上の清掃作業は、放電部１６をベース部１５から分離した状態で行われる。これを取り外す際は左右の上支持部６５が摘みとして機能する。これら上支持部６５が摘みであることをユーザーに示すため、ケース本体３４（外ケース３７）の左右外側面の前後中央には、突起からなる目印７９が設けられている。これによりユーザーは、目印７９の直上にある上支持部６５が摘みであると認識することができ、例えば一方の上支持部６５に親指を、他方の上支持部６５に人差し指を宛てがい、放電部１６を左右両側から２本の指で摘んで引き上げることにより、これをベース部１５から分離することができる。本実施形態に係る放電部１６（放電ケース３４）の左右寸法は約４５ｍｍ、前後寸法は約１６ｍｍである。 The cleaning work described above is performed with the discharge section 16 separated from the base section 15 . When removing this, the left and right upper support portions 65 function as knobs. In order to indicate to the user that these upper support portions 65 are knobs, marks 79 made of protrusions are provided at the front and rear centers of the left and right outer surfaces of the case body 34 (outer case 37). As a result, the user can recognize that the upper support portion 65 directly above the mark 79 is a knob. The portion 16 can be separated from the base portion 15 by picking it up with two fingers from both left and right sides and pulling it up. The lateral dimension of the discharge portion 16 (discharge case 34) according to the present embodiment is approximately 45 mm, and the longitudinal dimension thereof is approximately 16 mm.
　第１電極３１よりも上方へ大きく突出する上支持部６５を摘みとして用いると、ユーザーが第１電極３１や誘電体３３に触れてこれらに皮脂などが付着することをよく防止できる。上支持部６５が摘みであることを目印７９で示すと、ユーザーが上支持部６５以外の部分、例えばケース本体３４の前後壁を摘み、誤って第１電極３１や誘電体３３に触れてしまうことをよく防止できる。目印７９はケース本体３４に印刷されたマークなどであってもよいが、これを突起とすることで、目印７９を滑り止めとしても機能させて、ユーザーに放電ケース３４を確りと保持させることができる。 By using the upper support portion 65 that protrudes significantly upward from the first electrode 31 as a knob, it is possible to prevent the user from touching the first electrode 31 and the dielectric 33 and getting sebum and the like from adhering to them. If the mark 79 indicates that the upper support portion 65 is a knob, the user may pick up a portion other than the upper support portion 65, such as the front and rear walls of the case body 34, and accidentally touch the first electrode 31 or the dielectric 33. can often be prevented. The mark 79 may be a mark printed on the case main body 34, but by using this as a projection, the mark 79 can also function as a non-slip, allowing the user to firmly hold the discharge case 34. can.
　また、第１電極３１に上方から被さるトンネル状の上支持部６５は、第１電極３１よりも上方へ大きく突出しているため、放電部１６が上下反転して落下した際に床面などに先当たりして、第１電極３１に直接の衝撃が及ぶのを防止することができる。つまり上支持部６５は、第１電極３１を落下衝撃から保護する第１保護部８１を兼ねている。また、外ケース３７の前後に設けた一対の突条７４も、第１保護部８１（上支持部６５）に比べると突出寸法は小さいものの、第１電極３１よりは上方へ突出しており（図１参照）、第１保護部８１と同様に床面などに先当たりすることができる。つまり突条７４は、第１電極３１を落下衝撃から保護する第２保護部８２を構成する。 In addition, since the tunnel-shaped upper support portion 65 covering the first electrode 31 from above protrudes further upward than the first electrode 31, when the discharge portion 16 is turned upside down and falls, the discharge portion 16 falls before the floor surface or the like. It is possible to prevent a direct impact from reaching the first electrode 31 due to the contact. That is, the upper support portion 65 also serves as the first protection portion 81 that protects the first electrode 31 from drop impact. Also, a pair of protrusions 74 provided on the front and rear sides of the outer case 37 also protrude upwards from the first electrode 31, although the projection dimension is smaller than that of the first protection portion 81 (upper support portion 65) (see FIG. 3). 1), it can hit the floor or the like first, like the first protection part 81 . In other words, the ridge 74 constitutes a second protection portion 82 that protects the first electrode 31 from a drop impact.
　次に、各電極３１・３２への通電構造について説明する。図１に示すようにベース部１５には、昇圧回路２２から数ｋＶの交流電圧を供給される第１端子８５と第２端子８６が設けられており、第１電極３１は第１通電体８７を介して第１端子８５に、第２電極３２は第２通電体８８を介して第２端子８６に、それぞれ電気的に接続される。つまり昇圧回路２２は、端子８５・８６および通電体８７・８８を介して、第１電極３１と第２電極３２に高い交流電圧を印加する。端子８５・８６および通電体８７・８８は、金メッキを施したステンレスなどの金属で形成される。 Next, a structure for energizing the electrodes 31 and 32 will be described. As shown in FIG. 1, the base portion 15 is provided with a first terminal 85 and a second terminal 86 to which an AC voltage of several kV is supplied from the booster circuit 22. , and the second electrode 32 is electrically connected to a second terminal 86 via a second conductor 88 . That is, the booster circuit 22 applies a high AC voltage to the first electrode 31 and the second electrode 32 via the terminals 85 and 86 and the conductors 87 and 88 . The terminals 85 and 86 and the conductors 87 and 88 are made of metal such as gold-plated stainless steel.
　図９に示すように第１通電体８７は、１本の導線（金属線）を曲げて成形されており、第１電極３１の側すなわち上側から順に、電極接続部９０と巻締部９１と端子接続部９２を一体に備える。電極接続部９０は、左右方向を軸心方向とするコイル状に形成されて、第１電極３１の周面に密着するように巻き付けられている（図１参照）。巻締部９１は、側面視で垂直部分と水平部分を有するＬ字状に形成されて、該垂直部分に連続する電極接続部９０の一端を下向きに付勢する。電極接続部９０の一端を巻締部９１で下方へ引っ張ることにより、第１電極３１の周面に対する電極接続部９０の密着性を高めることができる。このように巻締部９１がばね性を発揮するのは、巻締部９１の水平部分が外ケース３７の上壁６１の下面すなわち座部９４で受け止められているためである。 As shown in FIG. 9, the first conductor 87 is formed by bending a single conductor wire (metal wire). A terminal connection portion 92 is integrally provided. The electrode connection portion 90 is formed in a coil shape with the horizontal direction as the axial direction, and is wound so as to be in close contact with the peripheral surface of the first electrode 31 (see FIG. 1). The winding portion 91 is formed in an L shape having a vertical portion and a horizontal portion when viewed from the side, and urges downward one end of the electrode connecting portion 90 that is continuous with the vertical portion. By pulling one end of the electrode connection portion 90 downward with the winding portion 91 , the adhesion of the electrode connection portion 90 to the peripheral surface of the first electrode 31 can be enhanced. The seam portion 91 exhibits springiness in this manner because the horizontal portion of the seam portion 91 is received by the lower surface of the upper wall 61 of the outer case 37 , that is, the seat portion 94 .
　巻締部９１の下側に連続する端子接続部９２は、上下方向を軸心方向とする圧縮コイルばね状に形成されている。図９に示す放電部１６の装着状態においては、端子接続部９２の下端が第１端子８５の上面に弾性的に密着して、第１通電体８７が第１端子８５に電気的に接続される。このときの端子接続部９２は上下方向に圧縮されており、その上端は巻締部９１の水平部分と同様に座部９４で受け止められている。端子接続部９２の下端すなわち第１接点９５は円環状に形成されており、第１端子８５の上面には第１接点９５に内嵌するばね受部９６が突出形成されている。ばね受部９６が第１接点９５の内側に侵入して係合することにより、第１端子８５に対する端子接続部９２のズレ動きが規制されて、両者８５・９２の電気的接続がより安定化する。 A terminal connection portion 92 that continues to the lower side of the seam portion 91 is formed in the shape of a compression coil spring whose axial direction is the vertical direction. 9, the lower end of the terminal connection portion 92 is elastically adhered to the upper surface of the first terminal 85, and the first conductor 87 is electrically connected to the first terminal 85. be. At this time, the terminal connecting portion 92 is vertically compressed, and its upper end is received by the seat portion 94 in the same manner as the horizontal portion of the winding portion 91 . The lower end of the terminal connection portion 92 , that is, the first contact 95 is formed in an annular shape. When the spring receiving portion 96 enters and engages with the first contact 95, the displacement movement of the terminal connection portion 92 with respect to the first terminal 85 is regulated, and the electrical connection between the two 85 and 92 is further stabilized. do.
　以上の電極接続部９０と巻締部９１と端子接続部９２を一体に備える第１通電体８７によれば、部品点数を少なくして製造時の組立の手間やコストを削減することができる。圧縮状態の端子接続部９２が第１端子８５に弾性的に密着する形態によれば、両者８５・９２の電気的接続が安定かつ確実なものとなり、加えて、放電ケース３４（外ケース３７）とベースケース４２などの上下寸法の設計公差を吸収することができる。 According to the first conductor 87 integrally including the electrode connection portion 90, the winding portion 91, and the terminal connection portion 92, the number of parts can be reduced, and the labor and cost of assembly during manufacturing can be reduced. According to the configuration in which the terminal connection portion 92 in the compressed state is elastically brought into close contact with the first terminal 85, the electrical connection between the two terminals 85 and 92 is stable and reliable. , and the design tolerance of the vertical dimensions of the base case 42 and the like can be absorbed.
　もちろん、圧縮状態の端子接続部９２が発揮する上下方向の反発力は、先述の装着保持手段を構成する第１磁着体５３と第２磁着体５４の間の吸着力よりは十分に小さく、端子接続部９２の反発力のみによって放電部１６がベース部１５から分離することは無い。ただし、装着保持手段の吸着力の一部は端子接続部９２の反発力で相殺されるため、ユーザーは放電部１６の清掃などの際に、より軽い力でこれをベース部１５から分離することができる。また端子接続部９２は、巻締部９１の水平部分を介して、その垂直部分から水平方向（前後方向）に離間している。これによれば、巻締部９１の垂直部分から電極接続部９０に作用する下向きの付勢力が、端子接続部９２の反発力で打ち消されることを防止して、当該付勢力で電極接続部９０を第１電極３１の周面によく密着させることができる。 Of course, the repulsive force in the vertical direction exerted by the terminal connection portion 92 in the compressed state is sufficiently smaller than the attraction force between the first and second magnetic bodies 53 and 54 that constitute the mounting and holding means described above. , the discharge portion 16 is not separated from the base portion 15 only by the repulsive force of the terminal connection portion 92 . However, since part of the attraction force of the mounting and holding means is offset by the repulsive force of the terminal connection portion 92, the user should separate the discharge portion 16 from the base portion 15 with a lighter force when cleaning the discharge portion 16 or the like. can be done. The terminal connection portion 92 is separated from the vertical portion in the horizontal direction (front-rear direction) via the horizontal portion of the seam portion 91 . According to this, the downward biasing force acting on the electrode connection portion 90 from the vertical portion of the winding portion 91 is prevented from being canceled by the repulsive force of the terminal connection portion 92, and the electrode connection portion 90 is can be brought into close contact with the peripheral surface of the first electrode 31 .
　外ケース３７の上壁６１の下面には、座部９４を囲むように、第１通電体８７の端子接続部９２用の収納穴９８を区画する略円筒状の収納ボス９９が下向きに突設される。端子接続部９２の上半部が収納穴９８に収納されており、このように端子接続部９２の上半部の周囲を収納ボス９９で取り囲むことにより、該上半部を外力から保護して変形などの破損を防止することができる。収納ボス９９の周壁の一部には、巻締部９１の水平部分の挿通を許す縦溝が形成されている。 On the lower surface of the upper wall 61 of the outer case 37, a substantially cylindrical storage boss 99 is provided downwardly to define a storage hole 98 for the terminal connection portion 92 of the first conductor 87 so as to surround the seat portion 94. be done. The upper half of the terminal connection portion 92 is accommodated in the accommodation hole 98, and by surrounding the upper half of the terminal connection portion 92 with the accommodation boss 99, the upper half is protected from external forces. Damage such as deformation can be prevented. A vertical groove is formed in a part of the peripheral wall of the housing boss 99 to allow the horizontal portion of the winding portion 91 to pass therethrough.
　内ケース３８の天壁には、収納ボス９９および端子接続部９２の挿通を許す挿通孔１００が設けられている。挿通孔１００の周面は、収納ボス９９の突端部（下端部）の外周面に近接してこれを取り囲んでいる。つまり挿通孔１００は、収納ボス９９の突端部を外力から保護して変形などの破損を防止することができる。ベースケース４２の下段部４４の上面には、放電部１６の装着時に収納ボス９９に対向する端子台１０１が突設されている。端子台１０１は上向きに開口する四角筒状に形成されており、その内部に第１端子８５のばね受部９６が配置されている。 A ceiling wall of the inner case 38 is provided with an insertion hole 100 through which the storage boss 99 and the terminal connection portion 92 are inserted. The peripheral surface of the insertion hole 100 is close to and surrounds the outer peripheral surface of the tip (lower end) of the storage boss 99 . In other words, the insertion hole 100 can protect the tip of the storage boss 99 from external force and prevent damage such as deformation. A terminal block 101 projects from the upper surface of the lower portion 44 of the base case 42 so as to face the housing boss 99 when the discharge portion 16 is mounted. The terminal block 101 is formed in the shape of a rectangular tube that opens upward, and the spring receiving portion 96 of the first terminal 85 is arranged inside.
　図１０に示すように、ベース部１５から放電部１６を分離すると、第１通電体８７は放電部１６と一体に移動し、端子接続部９２は第１端子８５から分離することで、圧縮状態から自然長Ｌ１に復帰する。この自然長Ｌ１に対して、収納穴９８の深さ（収納ボス９９の高さ）Ｄ１は、不等式（Ｌ１／２＜Ｄ１＜Ｌ１）を満たす寸法に設定される。収納穴９８の深さＤ１が端子接続部９２の自然長Ｌ１の２分の１より大きい、つまり端子接続部９２の上側の過半部が収納穴９８に収納されていると、比較的座屈しやすい端子接続部９２の上下中央部を収納ボス９９で取り囲んで、その座屈を的確に防止することができる。また、端子接続部９２は収納穴９８の深さＤ１を超えて（深さＤ１より短くなるように）縮むことは無いため、この深さＤ１を端子接続部９２の自然長Ｌ１の２分の１より大きく設定することで、放電部１６の装着時に端子接続部９２が過剰に圧縮されないようにして、端子接続部９２の劣化を抑えて第１通電体８７の寿命を伸ばすことができる。自然長Ｌ１における端子接続部９２の下端は、放電ケース３４の下端よりも上方に位置しており、これによれば、ベース部１５から分離した放電部１６を卓上などに置いたときに、端子接続部９２が卓上に触れない、つまり圧縮されないようにして、端子接続部９２の劣化を抑えて寿命を伸ばすことができる。 As shown in FIG. 10 , when the discharge portion 16 is separated from the base portion 15 , the first conducting body 87 moves integrally with the discharge portion 16 , and the terminal connection portion 92 is separated from the first terminal 85 so as to be in a compressed state. to the natural length L1. With respect to this natural length L1, the depth D1 of the storage hole 98 (the height of the storage boss 99) is set to a dimension that satisfies the inequality (L1/2<D1<L1). If the depth D1 of the housing hole 98 is larger than half of the natural length L1 of the terminal connecting portion 92, that is, if the upper half of the terminal connecting portion 92 is housed in the housing hole 98, it is relatively easy to buckle. By surrounding the upper and lower central portions of the terminal connection portion 92 with the storage bosses 99, the buckling can be prevented accurately. In addition, since the terminal connection portion 92 does not shrink beyond the depth D1 of the housing hole 98 (becomes shorter than the depth D1), the depth D1 is set to half the natural length L1 of the terminal connection portion 92. By setting it to be larger than 1, the terminal connection part 92 is prevented from being excessively compressed when the discharge part 16 is attached, so that deterioration of the terminal connection part 92 can be suppressed and the life of the first conductor 87 can be extended. The lower end of the terminal connection portion 92 in the natural length L1 is located above the lower end of the discharge case 34, and according to this, when the discharge portion 16 separated from the base portion 15 is placed on a desk or the like, the terminal By preventing the connecting part 92 from touching the tabletop, that is, from being compressed, deterioration of the terminal connecting part 92 can be suppressed and the life of the terminal connecting part 92 can be extended.
　図１１および図１２に示すように、第２端子８６から第２電極３２への通電は、前後一対の第２通電体８８を介して行われる。各第２通電体８８は、１本の導線（金属線）を素材として、上下方向を軸心方向とする圧縮コイルばね状に形成されている。先の第１通電体８７が放電部１６の第１電極３１に連結されて、ベース部１５の第１端子８５から分離可能であるのに対し、この第２通電体８８はベース部１５の第２端子８６に連結されて、放電部１６の第２電極３２から分離可能になっている。第２通電体８８の下端は第２端子８６にかしめ固定されており、これにより第２通電体８８は第２端子８６により自立状態に支持される。図１１に示す放電部１６の装着状態においては、各第２通電体８８は上下方向に圧縮し、その上端が第２電極３２の下面に弾性的に密着する。 As shown in FIGS. 11 and 12, energization from the second terminal 86 to the second electrode 32 is performed through a pair of front and rear second conductors 88 . Each of the second current-carrying bodies 88 is made of one conductor (metal wire) and is formed in the shape of a compression coil spring whose axial direction is the vertical direction. The first conductor 87 is connected to the first electrode 31 of the discharge section 16 and is separable from the first terminal 85 of the base section 15 , whereas the second conductor 88 is connected to the first terminal 85 of the base section 15 . It is connected to two terminals 86 and is separable from the second electrode 32 of the discharge section 16 . The lower end of the second conductor 88 is crimped and fixed to the second terminal 86 so that the second conductor 88 is supported by the second terminal 86 in a self-supporting state. In the mounted state of the discharge section 16 shown in FIG. 11 , each second conductor 88 is vertically compressed and its upper end is elastically brought into close contact with the lower surface of the second electrode 32 .
　ベースケース４２の下対向壁５２には、第２通電体８８用の収納穴１０４を区画する円筒状の収納ボス１０５・１０６が、上向きおよび下向きに突設されている。第２通電体８８の上端部を除く下側の過半部が収納穴１０４に収容されており、このように第２通電体８８の下側の過半部を収納ボス１０５・１０６で取り囲むことにより、該過半部を外力から保護して変形などの破損を防止することができる。下収納ボス１０６の突端部（下端部）は第２端子８６に当接して、第２端子８６と第２通電体８８の連結（かしめ固定）部分を取り囲んでいる。上収納ボス１０５の突端部（上端部）は、放電部１６をベース部１５に装着したときに第２電極３２の下面に非接触かつ近接する。またこのとき第２通電体８８の上端部は、上収納ボス１０５の突端すなわち収納穴１０４の上開口から突出して、第２電極３２の下面に密着する。 On the lower facing wall 52 of the base case 42, cylindrical storage bosses 105 and 106 that define the storage hole 104 for the second conductor 88 are protruded upward and downward. The lower half of the second conductor 88 excluding the upper end is accommodated in the housing hole 104. By surrounding the lower half of the second conductor 88 with the housing bosses 105 and 106, Damage such as deformation can be prevented by protecting the majority portion from external force. A protruding end (lower end) of the lower housing boss 106 abuts on the second terminal 86 and surrounds the connecting (crimped) portion between the second terminal 86 and the second conductor 88 . The tip (upper end) of the upper housing boss 105 is not in contact with the lower surface of the second electrode 32 and is close to the lower surface of the second electrode 32 when the discharge section 16 is attached to the base section 15 . Also, at this time, the upper end of the second conductor 88 protrudes from the tip of the upper housing boss 105 , ie, the upper opening of the housing hole 104 , and comes into close contact with the lower surface of the second electrode 32 .
　放電部１６の内ケース３８の上対向壁５１およびクッション材５８には、上収納ボス１０５の挿通を許す挿通孔１０７・１０８がそれぞれ設けられている。各挿通孔１０７・１０８の内周面は、上収納ボス１０５の外周面に近接してこれを取り囲んでいる。これら挿通孔１０７・１０８によれば、第２電極３２に対する上収納ボス１０５の水平方向のズレを防止することができ、これにより第２通電体８８を第２電極３２の適切な個所へ確実に当接させることができる。また、上収納ボス１０５の突端部の外周面は、上窄まりのテーパー状に形成されており、その挿通を許す上対向壁５１の挿通孔１０７の下部は、下拡がりのテーパー状に形成されている。これらのテーパー面によれば、放電部１６をベース部１５に装着する際に、上収納ボス１０５を挿通孔１０７の内部へ容易に案内することができる。 The upper facing wall 51 and the cushion material 58 of the inner case 38 of the discharge section 16 are provided with insertion holes 107 and 108 through which the upper housing boss 105 is inserted. The inner peripheral surfaces of the insertion holes 107 and 108 are close to and surround the outer peripheral surface of the upper housing boss 105 . These insertion holes 107 and 108 prevent the upper housing boss 105 from being displaced in the horizontal direction with respect to the second electrode 32 , thereby ensuring that the second conductor 88 is properly positioned on the second electrode 32 . can be abutted. The outer peripheral surface of the tip portion of the upper storage boss 105 is tapered upward, and the lower portion of the insertion hole 107 of the upper facing wall 51 through which the boss 105 is inserted is tapered downward. ing. These tapered surfaces allow the upper housing boss 105 to be easily guided into the insertion hole 107 when the discharge section 16 is attached to the base section 15 .
　図１２に示すように、ベース部１５から放電部１６を分離すると、第２通電体８８は第２電極３２から分離することで、圧縮状態から自然長Ｌ２に復帰する。この自然長Ｌ２に対して、収納穴１０４の深さＤ２は、不等式（Ｌ２／２＜Ｄ２＜Ｌ２）を満たす寸法に設定される。収納穴１０４の深さＤ２が第２通電体８８の自然長Ｌ２の２分の１より大きい、つまり第２通電体８８の下側の過半部が収納穴１０４に収納されていると、比較的座屈しやすい第２通電体８８の上下中央部を収納穴１０４で取り囲んで、その座屈を的確に防止することができる。さらに、第２通電体８８は収納穴１０４の深さＤ２を超えて（深さＤ２より短くなるように）縮むことは無いため、この深さＤ２を第２通電体８８の自然長Ｌ２の２分の１より大きく設定することで、放電部１６の装着時に第２通電体８８が過剰に圧縮されないようにして、第２通電体８８の劣化を抑えて寿命を伸ばすことができる。また、上収納ボス１０５の高さＴは、収納穴１０４の深さＤ２の２分の１よりも小さく設定される（Ｔ＜Ｄ２／２）。これによれば、上収納ボス１０５の下対向壁５２からの突出量を小さくして、上収納ボス１０５が外力を受けたときの変形や破損をよく防止することができる。 As shown in FIG. 12, when the discharge section 16 is separated from the base section 15, the second conductor 88 is separated from the second electrode 32, thereby returning from the compressed state to the natural length L2. With respect to this natural length L2, the depth D2 of the storage hole 104 is set to a dimension that satisfies the inequality (L2/2<D2<L2). If the depth D2 of the housing hole 104 is larger than half of the natural length L2 of the second conductor 88, that is, if the lower half of the second conductor 88 is housed in the housing hole 104, relatively By surrounding the vertical center of the second conductor 88, which tends to buckle, with the storage hole 104, the buckling can be reliably prevented. Furthermore, since the second conductor 88 does not shrink beyond the depth D2 of the housing hole 104 (to be shorter than the depth D2), the depth D2 is 2 of the natural length L2 of the second conductor 88. By setting it to be larger than 1/1, the second conductor 88 is prevented from being excessively compressed when the discharge section 16 is mounted, and deterioration of the second conductor 88 can be suppressed to prolong its life. Also, the height T of the upper housing boss 105 is set smaller than half the depth D2 of the housing hole 104 (T<D2/2). According to this, the amount of protrusion of the upper housing boss 105 from the lower facing wall 52 is reduced, and the deformation and breakage of the upper housing boss 105 when receiving an external force can be well prevented.
　圧縮状態の第２通電体８８が第２電極３２に弾性的に密着する形態によれば、両者３２・８８の電気的接続が安定かつ確実なものとなり、加えて、ベースケース４２の上下寸法や誘電体３３の上下厚みなどの設計公差を吸収することができる。第２電極３２が第２通電体８８を受ける面の裏側すなわち上面を、ガラス板からなる誘電体３３で支持することにより、第２電極３２を補強してその変形などを防止することができる。誘電体３３は第２電極３２よりも十分に厚いため、第２電極３２を確りと補強することができる。第２通電体８８から第２電極３２を介して誘電体３３に作用する上向きの弾性力は、外ケース３７の内受部５９で確りと受け止められる。 According to the form in which the second conductor 88 in the compressed state is elastically brought into close contact with the second electrode 32, the electrical connection between both 32 and 88 is stable and reliable. Design tolerances such as the top and bottom thickness of the dielectric 33 can be absorbed. By supporting the back side of the surface of the second electrode 32 that receives the second conductor 88 , i.e., the upper surface, with the dielectric 33 made of a glass plate, the second electrode 32 can be reinforced and prevented from being deformed. Since the dielectric 33 is sufficiently thicker than the second electrode 32, the second electrode 32 can be firmly reinforced. The upward elastic force acting on the dielectric 33 from the second conductor 88 via the second electrode 32 is firmly received by the inner receiving portion 59 of the outer case 37 .
　一対の第２通電体８８で第２電極３２と第２端子８６を電気的に接続すると、仮に一方の第２通電体８８と第２電極３２または第２端子８６の間で接続不良が発生しても、他方の第２通電体８８を介して通電を行えるので、放電装置６の信頼性が向上する。一対の第２通電体８８のばね定数は同一であり、これによれば、第２電極３２に作用する弾性力を前後どちらかに偏ることなく均一にして、両方の第２通電体８８を第２電極３２に適切に密着させて、その間の電気的接続を安定化させることができる。また、各第２通電体８８から第２電極３２に作用する上向きの弾性力は、誘電体３３を介して第１電極３１にも作用する。この上向きの弾性力と、第１通電体８７の巻締部９１が電極接続部９０の一端を下方へ引っ張る弾性力との相乗効果によって、第１電極３１の周面に対する電極接続部９０の密着性がより向上する。 If the second electrode 32 and the second terminal 86 are electrically connected by a pair of second conductors 88, a connection failure may occur between one of the second conductors 88 and the second electrode 32 or the second terminal 86. However, since energization can be performed through the other second current-carrying member 88, the reliability of the discharge device 6 is improved. The spring constants of the pair of second conductors 88 are the same, and according to this, the elastic force acting on the second electrode 32 is made uniform without being biased toward either the front or the rear, and both the second conductors 88 are arranged in the same direction. It can be brought into close contact with the two electrodes 32 to stabilize the electrical connection therebetween. In addition, the upward elastic force acting on the second electrode 32 from each second conductor 88 also acts on the first electrode 31 via the dielectric 33 . The synergistic effect of this upward elastic force and the elastic force of the winding part 91 of the first conductor 87 pulling the one end of the electrode connection part 90 downward allows the electrode connection part 90 to adhere closely to the peripheral surface of the first electrode 31 . more improved.
　図１３に示すように、第１端子８５（ばね受部９６）がベース部１５の左右一端部（ここでは左端部）のみに配置されるのに対し、第１通電体８７は第１電極３１の左右両端部に配置されている。このうち一方の第１通電体８７のみが、放電部１６の装着時に第１端子８５に密着して、第１端子８５から第１電極３１への通電に寄与する。また、一対の第２通電体８８がベース部１５の左右一側（ここでは右側）のみに配置されるのに対し、その挿通を許す挿通孔１０７・１０８は放電部１６の左右両側に配置されている。このうち一方の挿通孔１０７・１０８のみが、放電部１６の装着時に第２通電体８８を挿通させて、第２端子８６から第２電極３２への通電に寄与する。 As shown in FIG. 13, the first terminal 85 (spring receiving portion 96) is arranged only at one left and right end (here, the left end) of the base portion 15, whereas the first conductor 87 is located at the first electrode 31. are located on the left and right ends of the Only one of them, the first conducting member 87 , is brought into close contact with the first terminal 85 when the discharge portion 16 is attached, and contributes to conducting electricity from the first terminal 85 to the first electrode 31 . Also, while the pair of second conductors 88 are arranged only on one left and right side (right side in this case) of the base portion 15, the insertion holes 107 and 108 for allowing them to pass through are arranged on both left and right sides of the discharge portion 16. ing. Only one of these insertion holes 107 and 108 allows the second conductor 88 to pass therethrough when the discharge section 16 is attached, and contributes to energization from the second terminal 86 to the second electrode 32 .
　第１電極３１の左右両側に第１通電体８７を配置するとともに、放電部１６の左右両側に挿通孔１０７・１０８を配置したのは、先述のように放電部１６が垂直軸のまわりに２回対称であることに起因する。放電部１６を第１姿勢でベース部１５に装着したときは、左側の第１通電体８７と右側の挿通孔１０７・１０８がその機能を発揮し、放電部１６を第２姿勢で装着したときは、右側の第１通電体８７と左側の挿通孔１０７・１０８がその機能を発揮する。つまり、２回対称の放電部１６を第１姿勢と第２姿勢のどちらでベース部１５に装着しても、各電極３１・３２と各端子８５・８６が通電体８７・８８を介して電気的に接続されるようになっており、これによれば、ユーザーが放電部１６の装着時にその向きを気にする必要が無いユーザーフレンドリーな放電装置６とすることができる。 The reason why the first conductors 87 are arranged on both the left and right sides of the first electrode 31 and the insertion holes 107 and 108 are arranged on both the left and right sides of the discharge section 16 is that the discharge section 16 is arranged in two directions around the vertical axis as described above. This is due to the rotational symmetry. When the discharge portion 16 is attached to the base portion 15 in the first posture, the first conductor 87 on the left side and the insertion holes 107 and 108 on the right side exhibit their functions, and when the discharge portion 16 is attached in the second posture. , the first conductor 87 on the right side and the insertion holes 107 and 108 on the left side exhibit their functions. In other words, the electrodes 31 and 32 and the terminals 85 and 86 are electrically connected to the electrodes 31 and 32 and the terminals 85 and 86 through the conductors 87 and 88 regardless of whether the discharge section 16 having two rotational symmetry is attached to the base section 15 in the first posture or the second posture. This allows a user-friendly discharge device 6 in which the user does not have to worry about the orientation of the discharge section 16 when the discharge section 16 is attached.
　なお、ベースケース４２の平面視における第１端子８５（ばね受部９６）の対角位置には、端子台１０１の類は設けられていない。そのため、一方の第１通電体８７の端子接続部９２が第１端子８５に密着するとき、他方の第１通電体８７の端子接続部９２は、自然長に伸びた状態でベースケース４２の下段部４４の上面に臨む。つまり、端子接続部９２が圧縮されないようにして、その劣化を抑えて寿命を伸ばすことができる。また、放電部１６の第１姿勢と第２姿勢とでは、第２電極３２が第２通電体８８に密着される個所が異なる。これによれば、第２電極３２の摩耗を抑えてその寿命を伸ばすことができる。 Note that the terminal block 101 or the like is not provided at the diagonal position of the first terminal 85 (spring receiving portion 96) in the plan view of the base case 42. Therefore, when the terminal connection portion 92 of one of the first conductors 87 is brought into close contact with the first terminal 85, the terminal connection portion 92 of the other first conductor 87 is extended to its natural length and attached to the lower stage of the base case 42. It faces the upper surface of the part 44 . In other words, it is possible to prevent the terminal connection portion 92 from being compressed, thereby suppressing its deterioration and extending its life. Further, the position where the second electrode 32 is brought into close contact with the second conductor 88 differs between the first posture and the second posture of the discharge portion 16 . According to this, the wear of the second electrode 32 can be suppressed and the life of the second electrode 32 can be extended.
　第１通電体８７を受ける第１端子８５のばね受部９６がベースケース４２の下段部４４に配置されているのに対し、第２端子８６から伸びる第２通電体８８は同ケース４２の上段部４３に配置されている。つまり、一対の端子８５・８６と通電体８７・８８はベースケース４２の上下段部４３・４４に分かれて配置されている。 The spring receiving portion 96 of the first terminal 85 that receives the first conductor 87 is arranged in the lower part 44 of the base case 42 , whereas the second conductor 88 extending from the second terminal 86 is located in the upper part of the case 42 . It is arranged in the portion 43 . That is, the pair of terminals 85 and 86 and the conductors 87 and 88 are arranged separately in the upper and lower step portions 43 and 44 of the base case 42 .
　図１４に示すように第２電極３２は、誘電体３３よりも一回り小さい左右横長の矩形状に形成されており、その前後中央すなわち第１電極３１の真下には、同電極３１と平行に伸びる空隙１１０が設けられている。つまり第２電極３２は、空隙１１０を境に前側の第１領域１１１と後側の第２領域１１２とに区分されており、両領域１１１・１１２は左右３個所の架橋部１１３のみを介して連続している。架橋部１１３は第２電極３２の左右中央および両端に配置されている。各架橋部１１３は第１領域１１１および第２領域１１２と同時に形成（成膜）されるが、これら領域１１１・１１２とは別体で形成してもよい。 As shown in FIG. 14, the second electrode 32 is formed in a horizontally long rectangular shape that is one size smaller than the dielectric 33 . An extending air gap 110 is provided. That is, the second electrode 32 is divided into a first region 111 on the front side and a second region 112 on the rear side with the air gap 110 as a boundary, and the two regions 111 and 112 are separated only by the bridging portions 113 at three locations on the left and right. Contiguous. The bridging portions 113 are arranged at the left-right center and both ends of the second electrode 32 . Each bridging portion 113 is formed (film-formed) at the same time as the first region 111 and the second region 112, but may be formed separately from these regions 111 and 112. FIG.
　第１電極３１と第２電極３２に高い交流電圧が印加されると、第２電極３２を覆う誘電体３３の表面（上面）と第１電極３１との間で無声放電（誘電体バリア放電）が生じ、その周囲の空気に含まれる酸素の一部がオゾンに変化する。平面視において第２電極３２の全体は誘電体３３の周縁の内方に配置されており、これによれば、誘電体３３を介さない電極３１・３２間の放電を確実に防止することができる。また本実施形態では、図１および図７に示すように、クッション材５８の周縁部が誘電体３３に密着しており、第２電極３２の周縁部は全周にわたって誘電体３３とクッション材５８の間に密封されている。これによれば、第２電極３２の周縁部と第１電極３１との間で誘電体３３を介さずに放電が生じることをより確実に防止することができる。 When a high AC voltage is applied to the first electrode 31 and the second electrode 32 , silent discharge (dielectric barrier discharge) occurs between the first electrode 31 and the surface (upper surface) of the dielectric 33 covering the second electrode 32 . occurs, and part of the oxygen contained in the surrounding air changes to ozone. In a plan view, the entire second electrode 32 is arranged inside the periphery of the dielectric 33 , thereby reliably preventing discharge between the electrodes 31 and 32 not through the dielectric 33 . . Further, in this embodiment, as shown in FIGS. 1 and 7, the peripheral portion of the cushion material 58 is in close contact with the dielectric 33, and the peripheral portion of the second electrode 32 is formed between the dielectric 33 and the cushion material 58 over the entire circumference. is sealed between According to this, it is possible to more reliably prevent discharge from occurring between the peripheral portion of the second electrode 32 and the first electrode 31 without the dielectric 33 interposed therebetween.
　この無声放電を広範囲で行わせてオゾンの発生量を増やすため、第２電極３２の前後中央すなわち第１電極３１の真下に空隙１１０が設けられている。この空隙１１０があることで、誘電体３３の表面の電荷が第１電極３１の真下よりもその前後（第１領域１１１および第２領域１１２の上方）に多く集まるようになり、その結果、誘電体３３の表面の広範囲で放電が発生する。加えて空隙１１０によれば、放電の障害となる白い粉塵（硝酸塩）が堆積しやすい第１電極３１の真下において、放電が集中するのを避けることができる。粉塵の堆積が比較的少ない第１電極３１の前後で放電を発生させると、比較的長期にわたって放電量が維持されるようになり、その結果、ユーザーに放電部１６の清掃を促す機会を減らすことができる。 A gap 110 is provided in the front and rear center of the second electrode 32 , that is, directly below the first electrode 31 in order to increase the amount of ozone generated by performing this silent discharge over a wide range. Due to the presence of this gap 110, more charges on the surface of the dielectric 33 gather in front and behind the first electrode 31 (above the first region 111 and the second region 112) than directly under the first electrode 31. As a result, the dielectric Discharge occurs over a wide area on the surface of body 33 . In addition, the air gap 110 can prevent the discharge from concentrating directly under the first electrode 31, where white dust (nitrate) that hinders the discharge tends to accumulate. When the discharge is generated before and after the first electrode 31 where dust accumulation is relatively small, the amount of discharge is maintained for a relatively long period of time, and as a result, the chances of prompting the user to clean the discharge section 16 are reduced. can be done.
　第１電極３１の前後方向の幅Ｗ１が、その直径に一致する１ｍｍであるのに対し、空隙１１０の同方向の幅Ｗ２は２ｍｍに設定されている。空隙１１０の幅Ｗ２を第１電極３１の幅Ｗ１よりも大きく設定すると、誘電体３３の表面で第１電極３１の真下に集まる電荷をより少なくして、放電をより広範囲に広げることができる。また図１２に示すように、第１電極３１の上下方向の高さＨ１が、その直径に一致する１ｍｍであるのに対し、誘電体３３の上下方向の厚さＨ２は０．７ｍｍに設定されている。誘電体３３の厚さＨ２を第１電極３１の高さＨ１よりも小さく設定すると、第２電極３２の前後縁と第１電極３１を結ぶ仮想線を垂直から水平に近付けて、誘電体３３の表面の電荷の分布をその前後縁に近付けることができ、これにより放電をより広範囲に広げることができる。 The width W1 of the first electrode 31 in the front-rear direction is 1 mm, which corresponds to its diameter, while the width W2 of the gap 110 in the same direction is set at 2 mm. By setting the width W2 of the gap 110 to be larger than the width W1 of the first electrode 31, the amount of charge collected on the surface of the dielectric 33 just below the first electrode 31 can be reduced, and the discharge can be spread over a wider area. Also, as shown in FIG. 12, the vertical height H1 of the first electrode 31 is 1 mm, which is equal to its diameter, while the vertical thickness H2 of the dielectric 33 is set to 0.7 mm. ing. When the thickness H2 of the dielectric 33 is set to be smaller than the height H1 of the first electrode 31, the imaginary line connecting the front and rear edges of the second electrode 32 and the first electrode 31 is moved from the vertical to the horizontal, and the dielectric 33 is The surface charge distribution can be closer to its leading and trailing edges, thereby spreading the discharge over a wider area.
　図１４に示すように、第２端子８６から伸びる前後一対の第２通電体８８のうち、一方は第２電極３２の第１領域１１１に接続され、他方は第２領域１１２に接続されている。そのため、仮に架橋部１１３が無く両領域１１１・１１２が離れていても、各領域１１１・１１２に電圧を供給することは可能であるが、一方の第２通電体８８が劣化して第２電極３２または第２端子８６との間で接続不良が発生した場合は、第２電極３２の半分の領域にしか電圧を供給できないという不利が生じてしまう。この不利を避けるため、本実施形態では第１領域１１１と第２領域１１２を架橋部１１３で繋いでおり、これによれば、一方の第２通電体８８で接続不良が発生しても、他方の第２通電体８８を介して第２電極３２の全体に電圧を供給することができる。 As shown in FIG. 14, of the pair of front and rear second conductors 88 extending from the second terminal 86, one is connected to the first region 111 of the second electrode 32, and the other is connected to the second region 112. . Therefore, even if there is no bridging portion 113 and both regions 111 and 112 are separated, voltage can be supplied to each region 111 and 112. 32 or the second terminal 86, the disadvantage is that the voltage can only be supplied to a half area of the second electrode 32. FIG. In order to avoid this disadvantage, the first region 111 and the second region 112 are connected by the bridging portion 113 in this embodiment. A voltage can be supplied to the entire second electrode 32 via the second conductor 88 of .
　以上のように、本実施形態に係る放電装置６においては、放電部１６を装着状態に保持するための装着保持手段を、放電部１６に設けられる第１磁着体５３と、ベース部１５に設けられる第２磁着体５４とで構成した。換言すれば、両磁着体５３・５４の間に作用する吸着力で、放電部１６を装着状態に保持するようにした。この吸着力は放電部１６の着脱の繰り返しにより低下することは無く、しかも各磁着体５３・５４の寸法等のばらつきの影響を受け難く、その大きさはほぼ一定である。そのため、各磁着体５３・５４の寸法等に多少のばらつきがあったとしても、放電部１６を過不足の無い吸着力で装着状態に保持することができ、従って、放電部１６の着脱を軽快に行えるとともに、放電部１６の意図しない分離を確実に防止できる。このように、本実施形態によれば、装着保持手段がその機能を長期にわたって安定的に発揮することができ、しかも装着保持手段について高い精度を必要とせず、従って歩留まり良く製造が可能な放電装置６を提供することができる。 As described above, in the discharge device 6 according to the present embodiment, the mounting and holding means for holding the discharge section 16 in the mounted state are provided in the first magnetized body 53 provided in the discharge section 16 and the base section 15. It is composed of the second magnetized body 54 provided. In other words, the discharge section 16 is held in the mounted state by the attraction force acting between the two magnetically attracted bodies 53 and 54 . This attracting force does not decrease due to repeated attachment and detachment of the discharge section 16, and is less susceptible to variations in the dimensions of the magnetized bodies 53 and 54, and its size is substantially constant. Therefore, even if there is some variation in the dimensions of the magnetized bodies 53 and 54, the discharge section 16 can be held in the mounted state with just the right amount of attractive force. This can be performed lightly, and unintended separation of the discharge section 16 can be reliably prevented. As described above, according to the present embodiment, the mounting and holding means can stably perform its function over a long period of time, and the mounting and holding means does not require high precision, so that the discharge device can be manufactured with a high yield. 6 can be provided.
　第１磁着体５３を放電部１６の上対向壁５１の中央に配置し、第２磁着体５４をベース部１５の下対向壁５２の中央に配置すると、各対向壁５１・５２の縁部に磁着体を配置しなくても、放電部１６の装着状態を良好に保持することができる。つまり本実施形態によれば、放電部１６の装着状態の保持に必要な磁着体５３・５４の個数を少なくして、放電装置を低コストで製造することができる。 When the first magnetized body 53 is arranged at the center of the upper facing wall 51 of the discharge section 16 and the second magnetized body 54 is arranged at the center of the lower facing wall 52 of the base section 15, the edges of the facing walls 51 and 52 are arranged. The mounting state of the discharge section 16 can be maintained in a good condition without arranging a magnetically attached body in the section. In other words, according to the present embodiment, the number of magnetically attracted bodies 53 and 54 required to maintain the mounting state of the discharge section 16 can be reduced, and the discharge device can be manufactured at low cost.
　上対向壁５１と下対向壁５２の一方に係合凸部４７を設け、他方に係合凸部４７を受け入れる係合凹部４８を設けると、放電部１６の装着状態における両対向壁５１・５２の水平方向の相対移動を係合凸部４７と係合凹部４８で規制することができる。このように両対向壁５１・５２の相対移動を規制すると、各壁５１・５２の所定の位置に設けた第１磁着体５３と第２磁着体５４を確実に上下に正対すなわち吸着させることができ、これにより放電部１６の装着状態を良好に保持することができる。 If one of the upper facing wall 51 and the lower facing wall 52 is provided with the engaging convex portion 47 and the other is provided with the engaging concave portion 48 for receiving the engaging convex portion 47, both the facing walls 51 and 52 in the mounted state of the discharge portion 16 can be displaced. relative movement in the horizontal direction can be regulated by the engaging convex portion 47 and the engaging concave portion 48 . By restricting the relative movement of both opposing walls 51 and 52 in this way, the first and second magnetized bodies 53 and 54 provided at predetermined positions on the walls 51 and 52 are reliably vertically aligned, that is, attracted. Therefore, the mounting state of the discharge section 16 can be maintained well.
　上対向壁５１の下面から係合凸部４７を下向きに突出させ、その裏側に第１磁着体５３を収容する上収容凹部５５を形成すると、第１磁着体５３を上対向壁５１に取り付ける際に、作業者がその位置を容易に判別することができ、加えて、第１磁着体５３を上収容凹部５５で囲んで、その水平方向の位置ズレを規制することができる。 When the engagement projection 47 is protruded downward from the lower surface of the upper facing wall 51 and the upper accommodation recess 55 for accommodating the first magnetic member 53 is formed on the back side thereof, the first magnetic member 53 is attached to the upper facing wall 51. The position can be easily determined by the operator when attaching, and in addition, the first magnetized body 53 can be surrounded by the upper accommodation recess 55 to restrict its horizontal displacement.
　第２磁着体５４を係合凹部４８の裏側に配置するとともに、第１磁着体５３を係合凸部４７の裏側に配置すると、係合凸部４７と係合凹部４８の係合と同時に両磁着体５３・５４を上下に正対すなわち吸着させて、放電部１６の装着状態を良好に保持することができる。 When the second magnetic member 54 is arranged on the back side of the engaging recess 48 and the first magnetic member 53 is arranged on the back side of the engaging convex portion 47, the engaging convex portion 47 and the engaging concave portion 48 are engaged with each other. At the same time, the two magnetized bodies 53 and 54 are vertically opposed to each other, that is, they are attracted to each other, so that the mounting state of the discharge section 16 can be maintained well.
　下対向壁５２の下面に、第２磁着体５４の少なくとも上部を収容する下収容凹部５６を設けると、下収容凹部５６の壁面で第２磁着体５４の水平方向の位置ズレを規制することができる。 When a lower accommodating recess 56 for accommodating at least the upper portion of the second magnetic member 54 is provided on the lower surface of the lower facing wall 52 , the wall surface of the lower accommodating recess 56 regulates the positional displacement of the second magnetic member 54 in the horizontal direction. be able to.
　下対向壁５２の下面に、第２磁着体５４の少なくとも上部を囲む周回状の囲み枠５７を突設すると、囲み枠５７の壁面で第２磁着体５４の水平方向の位置ズレを規制することができる。 When a circumferential surrounding frame 57 surrounding at least the upper part of the second magnetized body 54 is projected from the lower surface of the lower facing wall 52 , the wall surface of the surrounding frame 57 regulates the horizontal displacement of the second magnetized body 54 . can do.
　囲み枠５７の基端部を厚く形成すると、該基端部の強度を高めて、囲み枠５７が根元から破損することをよく防止することができる。 By forming the base end portion of the enclosing frame 57 thick, the strength of the base end portion can be increased, and the enclosing frame 57 can be well prevented from being damaged from the base.
　第２磁着体５４を非円形の板状または柱状に形成すると、その垂直軸まわりの回転を下収容凹部５６または囲み枠５７の壁面で規制して、第２磁着体５４の取り付け状態をより安定化させることができる。 When the second magnetized body 54 is formed in a non-circular plate-like or columnar shape, its rotation about its vertical axis is restricted by the wall surface of the lower housing recess 56 or the surrounding frame 57, so that the mounting state of the second magnetized body 54 is controlled. can be made more stable.
（第２実施形態）　図１５は、本発明に係る放電装置の第２実施形態を示しており、ベースケース４２の下対向壁５２の下面の囲み枠５７が省略されている点が、第１実施形態と相違する。本実施形態の下収容凹部５６は、下対向壁５２の下面中央に上凹み状に形成されている。この下収容凹部５６は第１実施形態に比べて浅く、四角ブロック状の第２磁着体５４の上半部のみを収容する。他は第１実施形態と同様であるので、同じ部材には同じ符号を付してその説明を省略する。次の第３実施形態以降においても同様とする。 (Second Embodiment) Fig. 15 shows a second embodiment of the discharge device according to the present invention, and the point that the enclosing frame 57 on the lower surface of the lower facing wall 52 of the base case 42 is omitted is the first embodiment. It differs from the embodiment. The lower accommodation recess 56 of this embodiment is formed in the shape of an upward depression in the center of the lower surface of the lower facing wall 52 . The lower accommodating recess 56 is shallower than that of the first embodiment, and accommodates only the upper half of the square block-shaped second magnetized member 54 . Others are the same as in the first embodiment, so the same members are denoted by the same reference numerals, and descriptions thereof are omitted. The same applies to the third and subsequent embodiments.
（第３実施形態）　図１６は、本発明に係る放電装置の第３実施形態を示しており、ベース部１５がベースケース４２とは別に、第２磁着体５４を保持するホルダーケース１１５を備える点が、第２実施形態と相違する。ホルダーケース１１５は、上面が開口する四角箱状に形成されており、その内側に四角ブロック状の第２磁着体５４がすっぽりと収まっている。第２磁着体５４とホルダーケース１１５の上面は面一である。ベースケース４２の下対向壁５２の下収容凹部５６は、ホルダーケース１１５の上部を収容可能な前後寸法および左右寸法に形成されている。ホルダーケース１１５はベースケース４２と同種のプラスチック材料で形成されており、このホルダーケース１１５をベースケース４２の下面に溶接等の手法で接合することにより、第２磁着体５４がベースケース４２に取り付けられている。 (Third Embodiment) FIG. 16 shows a third embodiment of the discharge device according to the present invention, in which the base portion 15 has a holder case 115 for holding the second magnetized body 54 separately from the base case 42. It differs from the second embodiment in that it is provided. The holder case 115 is formed in the shape of a square box with an open top, and the square block-shaped second magnetized body 54 is completely accommodated inside. The top surfaces of the second magnetized body 54 and the holder case 115 are flush with each other. The lower accommodating recess 56 of the lower facing wall 52 of the base case 42 is formed to have front-rear and lateral dimensions capable of accommodating the upper portion of the holder case 115 . The holder case 115 is made of the same kind of plastic material as the base case 42. By joining the holder case 115 to the lower surface of the base case 42 by welding or the like, the second magnetized body 54 is attached to the base case 42. installed.
　一般的にプラスチックどうしの接合は、プラスチックと金属の接合に比べて容易かつ強固であるため、ホルダーケース１１５を介して第２磁着体５４をベースケース４２に間接的に取り付けると、これを直接的に取り付ける場合に比べて、第２磁着体５４がベースケース４２から脱落することをより確実に防止することができる。また、ホルダーケース１１５の上部の四方を下収容凹部５６の壁面で囲むことにより、ホルダーケース１１５とこれに保持される第２磁着体５４の水平方向のズレ動きと垂直軸まわりの回転とを規制することができる。 In general, bonding between plastics is easier and stronger than bonding between plastics and metals. It is possible to more reliably prevent the second magnetized body 54 from falling off from the base case 42, as compared with the case where it is fixedly attached. Further, by surrounding the four sides of the upper part of the holder case 115 with the walls of the lower accommodation recess 56, the horizontal shift movement and the rotation about the vertical axis of the holder case 115 and the second magnetized body 54 held thereon can be suppressed. can be regulated.
（第４実施形態）　図１７は、本発明に係る放電装置の第４実施形態を示しており、第２磁着体５４を収容する下収容凹部５６が省略されている点が第２実施形態と相違する。本実施形態の第２磁着体５４は、下対向壁５２の下面中央すなわち係合凹部４８の裏側に接着固定されている。下対向壁５２の被接着面は、その周囲よりも下方へ突出しており、第２磁着体５４の上面（接着面）と略同一の形状を呈する。このような被接着面によれば、第２磁着体５４を下対向壁５２に取り付ける際に、作業者がその位置を容易に判別することができ、その作業性が向上する。つまり被接着面は、第２磁着体５４の取り付け位置を示す指示部１１７として機能する。上記各実施形態の下収容凹部５６も同様に指示部１１７として機能すると言うことができる。 (Fourth Embodiment) FIG. 17 shows a discharge device according to a fourth embodiment of the present invention, which is different from the second embodiment in that the lower housing recess 56 for housing the second magnetized body 54 is omitted. differ from The second magnetized body 54 of this embodiment is adhesively fixed to the center of the lower surface of the lower facing wall 52 , that is, to the back side of the engaging recess 48 . The adhered surface of the lower opposing wall 52 protrudes downward from its periphery and has substantially the same shape as the upper surface (adhesive surface) of the second magnetized body 54 . With such a surface to be adhered, when attaching the second magnetized body 54 to the lower opposing wall 52, the operator can easily determine the position thereof, and the workability is improved. In other words, the surface to be adhered functions as an indicator 117 that indicates the attachment position of the second magnetized body 54 . It can be said that the lower accommodating recessed portion 56 of each of the above-described embodiments also functions as the pointing portion 117 in the same manner.
（第５実施形態）　図１８は、本発明に係る放電装置の第５実施形態を示しており、放電部１６をベース部１５から分離するための操作レバー１２９を備える点が第１実施形態と相違する。操作レバー１２９は、水平軸からなる支点１３０のまわりに上下揺動自在にベース部１５で支持されており、一端には放電部１６の下面に臨む作用部１３１が、他端には操作部１３２が設けられている。操作部１３２が下向きに揺動操作されると、これと逆方向すなわち上向きの力が作用部１３１から放電部１６に作用し、この力が第１磁着体５３と第２磁着体５４の間の吸着力を上回ると、放電部１６がベース部１５から分離する。この操作レバー１２９を用いると、放電部１６に触れることなくこれをベース部１５から分離することができるため、分離の際に指先が誤って第１電極３１や誘電体３３に触れることを確実に防止することができる。 (Fifth Embodiment) Fig. 18 shows a fifth embodiment of the discharge device according to the present invention, which is different from the first embodiment in that an operation lever 129 for separating the discharge section 16 from the base section 15 is provided. differ. The operation lever 129 is supported by the base portion 15 so as to be vertically swingable around a fulcrum 130 consisting of a horizontal shaft. is provided. When the operating portion 132 is swung downward, a force in the opposite direction, that is, an upward force acts on the discharge portion 16 from the action portion 131 , and this force acts on the first magnetized body 53 and the second magnetized body 54 . When the attraction force between them is exceeded, the discharge portion 16 separates from the base portion 15 . By using this operation lever 129, it is possible to separate the discharge section 16 from the base section 15 without touching it. can be prevented.
　また本実施形態では、装着検出部１７がベース部１５に設けられたマイクロスイッチで構成されており、その受動ピン１３３が放電部１６の下面に臨むように配置されている。加えて、昇圧回路（トランス）２２がベース部１５に内蔵されている。放電部１６がベース部１５に装着されて、受動ピン１３３が放電部１６の下面で押し込まれると、装着検出部１７は制御部２１へ信号を出力する。制御部２１は、当該信号を受信するオン状態においては、放電部１６がベース部１５に装着されていると判断して、昇圧回路２２に電圧を供給する。一方、制御部２１は、装着検出部１７から信号を受信できないオフ状態に切り換わると、放電部１６がベース部１５から分離したと判断して、昇圧回路２２への電圧の供給を直ちに中断する。これにより、昇圧回路２２から高電圧が印加されている状態の端子８５・８６にユーザーが触れてしまう感電事故を確実に防止することができる。本実施形態のように装着検出部１７をマイクロスイッチで構成すると、ベース部１５の第２磁着体５４を永久磁石で構成しても、装着検出部１７を適正に動作させることができる。 In addition, in this embodiment, the attachment detection section 17 is composed of a microswitch provided on the base section 15, and its passive pin 133 is arranged so as to face the lower surface of the discharge section 16. In addition, a booster circuit (transformer) 22 is built in the base portion 15 . When the discharge portion 16 is attached to the base portion 15 and the passive pin 133 is pushed into the lower surface of the discharge portion 16 , the attachment detection portion 17 outputs a signal to the control portion 21 . Control unit 21 determines that discharge unit 16 is attached to base unit 15 and supplies voltage to booster circuit 22 in the ON state when the signal is received. On the other hand, when the control unit 21 switches to the OFF state in which it cannot receive a signal from the attachment detection unit 17, the control unit 21 determines that the discharge unit 16 is separated from the base unit 15, and immediately interrupts the voltage supply to the booster circuit 22. . As a result, it is possible to reliably prevent an electric shock accident in which a user touches the terminals 85 and 86 to which a high voltage is being applied from the booster circuit 22 . When the mounting detection section 17 is configured with a microswitch as in the present embodiment, the mounting detection section 17 can be properly operated even if the second magnetized body 54 of the base section 15 is configured with a permanent magnet.
（第６実施形態）　図１９は、本発明に係る放電装置の第６実施形態を示しており、昇圧回路（トランス）２２が放電部１６の側に配置されている点が第５実施形態と相違する。ベース部１５には、昇圧回路２２に駆動電圧を供給する給電部１３６が内蔵されている。ベース部１５に放電部１６を装着すると、給電部１３６から伸びる一対の出力コネクタ１３７と、昇圧回路２２から伸びる一対の入力コネクタ１３８との先端どうしが接触する。これにより、両コネクタ１３７・１３８が電気的に接続されて、給電部１３６から昇圧回路２２へ例えば数Ｖの直流電圧が供給される。 (Sixth Embodiment) Fig. 19 shows a sixth embodiment of the discharge device according to the present invention, which differs from the fifth embodiment in that the booster circuit (transformer) 22 is arranged on the discharge section 16 side. differ. The base portion 15 incorporates a power supply portion 136 that supplies a drive voltage to the booster circuit 22 . When the discharge section 16 is attached to the base section 15, the tips of the pair of output connectors 137 extending from the power supply section 136 and the pair of input connectors 138 extending from the booster circuit 22 come into contact with each other. As a result, both connectors 137 and 138 are electrically connected, and a DC voltage of, for example, several volts is supplied from the power supply unit 136 to the booster circuit 22 .
　第１磁着体５３は放電部１６の一対の入力コネクタ１３８の間に配置されており、第２磁着体５４はベース部１５の一対の出力コネクタ１３７の間に配置されている。本実施形態の第１磁着体５３と第２磁着体５４は、両者５３・５４間に作用する吸着力で放電部１６を装着状態に保持するとともに、出力コネクタ１３７と入力コネクタ１３８を接続（接触）状態に保持する。本実施形態によれば、給電部１３６の駆動中に放電部１６がベース部１５から分離して、ユーザーが出力コネクタ１３７に触れてしまっても、出力コネクタ１３７に印加されている電圧は低いため、感電の危険性は極めて低い。 The first magnetized body 53 is arranged between the pair of input connectors 138 of the discharge section 16 , and the second magnetized body 54 is arranged between the pair of output connectors 137 of the base section 15 . The first magnetized body 53 and the second magnetized body 54 of the present embodiment hold the discharge section 16 in the attached state by the attraction force acting between them 53 and 54, and connect the output connector 137 and the input connector 138. (contact) state. According to the present embodiment, even if the discharge section 16 is separated from the base section 15 while the power supply section 136 is being driven and the user touches the output connector 137, the voltage applied to the output connector 137 is low. , the risk of electric shock is extremely low.
（第７実施形態）　図２０は、本発明に係る放電装置の第７実施形態を示しており、両電極３１・３２が針状に形成されて先端どうしが対向している点、および、両電極３１・３２の間に誘電体３３が介在しない点が、第１実施形態と相違する。両電極３１・３２に直流の高電圧を印加すると、両電極３１・３２の間でコロナ放電が生じる。本実施形態の放電装置６は、マイナスイオンやヒドロキシラジカルを発生させるイオナイザー（イオン発生装置）などに適用することができる。本発明において第１電極３１と第２電極３２の形状は任意であり、上記各実施形態で示した棒状（針状を含む）とフィルム状以外に、平板状、円筒状、環状などに形成し、これらを適宜組み合わせてなる電極対を用いることができる。 (Seventh Embodiment) FIG. 20 shows a seventh embodiment of the discharge device according to the present invention, in that both electrodes 31 and 32 are needle-shaped and their tips face each other, and The difference from the first embodiment is that the dielectric 33 is not interposed between the electrodes 31 and 32 . When a DC high voltage is applied to both electrodes 31 and 32, corona discharge is generated between both electrodes 31 and 32. FIG. The discharge device 6 of this embodiment can be applied to an ionizer (ion generator) that generates negative ions and hydroxyl radicals. In the present invention, the shape of the first electrode 31 and the second electrode 32 is arbitrary, and in addition to the rod shape (including needle shape) and film shape shown in the above embodiments, they may be formed in a flat plate shape, a cylindrical shape, an annular shape, or the like. , and an electrode pair formed by appropriately combining these can be used.
（第８実施形態）　図２１および図２２は、本発明に係る放電装置の第８実施形態を示しており、装着保持手段が２組の第１磁着体５３と第２磁着体５４で構成される点などが第１実施形態と相違する。放電ケース３４の内ケース３８には左右一対の係合凸部４７が設けられており、上対向壁５１を挟んで各係合凸部４７の裏側（上側）に、第１磁着体５３を収容する上収容凹部５５が形成されている。同様に、ベースケース４２には左右一対の係合凹部４８が設けられており、下対向壁５２を挟んで各係合凹部４８の裏側（下側）に、第２磁着体５４を収容する下収容凹部５６が形成されている。ベース部１５は、ベースケース４２に下方から内嵌する底蓋１４５を含み、この底蓋１４５により下収容凹部５６の下面開口が塞がれている。 (Eighth Embodiment) FIGS. 21 and 22 show an eighth embodiment of the discharge device according to the present invention, in which the mounting and holding means is composed of two sets of the first magnetic body 53 and the second magnetic body 54. It is different from the first embodiment in terms of configuration and the like. An inner case 38 of the discharge case 34 is provided with a pair of left and right engaging projections 47 , and a first magnetic member 53 is attached to the back side (upper side) of each engaging projection 47 with an upper facing wall 51 interposed therebetween. An upper accommodation recessed portion 55 for accommodation is formed. Similarly, the base case 42 is provided with a pair of left and right engaging recesses 48 , and the second magnetized body 54 is accommodated on the back side (lower side) of each engaging recess 48 with the lower facing wall 52 interposed therebetween. A lower housing recess 56 is formed. The base portion 15 includes a bottom lid 145 that fits inside the base case 42 from below, and the bottom lid 145 closes the bottom opening of the lower housing recess 56 .
　また本実施形態では、平面視におけるベース部１５の中央に１個の第２通電体８８が配置されている。第２電極３２は全体として横臥Ｈ字状に形成されており、第２電極３２の左右中央にのみ架橋部１１３が設けられている。第２通電体８８は、第２電極３２の架橋部１１３の下面に弾性的に密着する上側の通電ピン１４７と、通電ピン１４７を第２電極３２に向かって上方へ付勢する下側の通電ばね１４８と、通電ばね１４８の下端に連続して略水平に延びる通電片１４９とで構成されており、通電片１４９の先端が導線などを介して昇圧回路２２に接続されている。通電ピン１４７と通電ばね１４８は、ベースケース４２の中央に上下貫通状に設けられた収納穴１０４に収納されており、通電ピン１４７は収納穴１０４の周面で上下動のみ可能に摺動案内される。通電ばね１４８は圧縮コイルばねからなり、その上端が通電ピン１４７の下端に連結されている。 Also, in the present embodiment, one second conductor 88 is arranged in the center of the base portion 15 in plan view. The second electrode 32 is formed in a lying H shape as a whole, and the bridging portion 113 is provided only at the center of the second electrode 32 in the left-right direction. The second conducting body 88 includes an upper conducting pin 147 that elastically adheres to the lower surface of the bridging portion 113 of the second electrode 32 and a lower conducting pin 147 that biases the conducting pin 147 upward toward the second electrode 32 . It is composed of a spring 148 and an energizing piece 149 that extends substantially horizontally continuously from the lower end of the energizing spring 148. The tip of the energizing piece 149 is connected to the booster circuit 22 via a lead wire or the like. The energizing pin 147 and the energizing spring 148 are housed in a housing hole 104 vertically penetrating through the center of the base case 42, and the energizing pin 147 is slidably guided on the peripheral surface of the housing hole 104 so that it can only move vertically. be done. The conducting spring 148 is a compression coil spring, and its upper end is connected to the lower end of the conducting pin 147 .
　収納穴１０４の下面開口は底蓋１４５で塞がれる。底蓋１４５の内面中央には、下収納ボス１０６の先端部（下端部）を受け入れる円形の係合穴１５３が凹み形成されており、この係合穴１５３の底面中央には、下収納ボス１０６の先端部の内側に侵入する円柱状の係合突起１５４が突出形成されている。通電ばね１４８の下端は底蓋１４５の内面（上面）、厳密には係合突起１５４の先端面（上面）で支持される。これら係合穴１５３および係合突起１５４を設けると、下収納ボス１０６の先端部に係合突起１５４と係合穴１５３を内外から係合させて、底蓋１４５の位置ズレを確実に規制することができる。また、係合突起１５４を下収納ボス１０６の先端部に侵入させると、その分だけ収納穴１０４の上下寸法が小さくなることから、通電ばね１４８の小型化によるコストダウンを図ることができる。なお、係合穴１５３と係合突起１５４の一方を省略し、底蓋１４５の内面中央に係合穴１５３のみ、あるいは係合突起１５４のみを設けることもできる。 The bottom opening of the storage hole 104 is closed with the bottom lid 145 . A circular engaging hole 153 for receiving the tip (lower end) of the lower storage boss 106 is recessed in the center of the inner surface of the bottom lid 145 . A cylindrical engaging projection 154 is formed to protrude into the inside of the tip of the. The lower end of the conducting spring 148 is supported by the inner surface (upper surface) of the bottom lid 145 , strictly speaking, the tip end surface (upper surface) of the engaging projection 154 . When the engaging hole 153 and the engaging projection 154 are provided, the engaging projection 154 and the engaging hole 153 are engaged with the tip portion of the lower storage boss 106 from inside and outside, thereby surely restricting the displacement of the bottom lid 145. be able to. In addition, if the engaging projection 154 is inserted into the tip of the lower storage boss 106, the vertical dimension of the storage hole 104 is reduced by that amount, so that the size of the energizing spring 148 can be reduced and the cost can be reduced. Alternatively, one of the engaging hole 153 and the engaging projection 154 may be omitted, and only the engaging hole 153 or only the engaging projection 154 may be provided in the center of the inner surface of the bottom lid 145 .
　第１電極３１の両端部を支持する電極支持構造６４は、放電ケース３４の外ケース３７に設けられた上支持部６５のみで構成されており、内ケース３８の下支持部６６は省略されている。各上支持部６５は、第１電極３１が挿通される上下に長いガイド孔１５１を備えており、第１電極３１はガイド孔１５１の前後の側面に沿って、誘電体３３に対して上下動可能である。常態における第１電極３１は、第１通電体８７の巻締部９１および上ばね１５７により下方へ付勢されて、誘電体３３の上面に密着する。 The electrode support structure 64 that supports both ends of the first electrode 31 is composed only of an upper support portion 65 provided on the outer case 37 of the discharge case 34, and the lower support portion 66 of the inner case 38 is omitted. there is Each upper support portion 65 has a vertically elongated guide hole 151 through which the first electrode 31 is inserted. It is possible. The first electrode 31 in the normal state is urged downward by the winding portion 91 of the first conductor 87 and the upper spring 157 to be in close contact with the upper surface of the dielectric 33 .
　上ばね１５７は、上下方向を軸心方向とする圧縮コイルばねからなり、左右の各上支持部６５の内側に配置されている。上支持部６５の内面には、上ばね１５７の上部を収容するばね凹部１５８が設けられている。上ばね１５７の下端は第１通電体８７の電極接続部９０の外周面に圧接しており、これにより上ばね１５７の下向きの付勢力が電極接続部９０を介して第１電極３１に作用する。巻締部９１と上ばね１５７の付勢力に抗して第１電極３１を持ち上げると、第１電極３１の下部の周囲を清掃ブラシできれいに清掃することができる。本実施形態のように上ばね１５７を用いる場合は、第１通電体８７から巻締部９１を省略してもよい。ただし、巻締部９１と上ばね１５７の両方を用いると、第１電極３１を誘電体３３に強く密着させて、誘電体３３に対する第１電極３１の意図しない遊動をより確実に防止することができる。 The upper spring 157 is composed of a compression coil spring whose axial direction is the vertical direction, and is arranged inside each of the left and right upper support portions 65 . A spring recess 158 that accommodates the upper portion of the upper spring 157 is provided on the inner surface of the upper support portion 65 . The lower end of the upper spring 157 is in pressure contact with the outer peripheral surface of the electrode connecting portion 90 of the first conducting member 87 , whereby the downward biasing force of the upper spring 157 acts on the first electrode 31 via the electrode connecting portion 90 . . By lifting the first electrode 31 against the urging force of the winding portion 91 and the upper spring 157, the surroundings of the lower portion of the first electrode 31 can be cleaned cleanly with the cleaning brush. When the upper spring 157 is used as in this embodiment, the winding portion 91 may be omitted from the first conductor 87 . However, if both the seam portion 91 and the upper spring 157 are used, the first electrode 31 is brought into close contact with the dielectric 33, and unintended movement of the first electrode 31 with respect to the dielectric 33 can be more reliably prevented. can.
　本発明に係る放電装置は、オゾナイザーやイオナイザーへの適用が可能であるから、国連の提唱する持続可能な開発目標（ＳＤＧｓ : Sustainable Development Goals）の目標３（すべての人に健康と福祉を）に貢献することができる。また放電装置は、処理された空気を放出するエアコン、加湿器、空気清浄機などの機器に内蔵することで、放出空気の除菌などに用いることができる。あるいは、冷蔵庫の庫内、クローゼット、トイレなどに設置することで、当該空間の消臭や除菌などに用いることができる。さらに放電装置は、オゾンを水に溶け込ませるオゾン水生成装置にも適用することができる。生成したオゾン水は、洗濯機、水洗トイレ、食品や食器の洗浄、医療機器の洗浄などに用いることができる。 Since the discharge device according to the present invention can be applied to ozonizers and ionizers, it is possible to achieve goal 3 (health and welfare for all) of the Sustainable Development Goals (SDGs) advocated by the United Nations. can contribute. Further, the discharge device can be used for sterilization of discharged air by incorporating it into equipment such as air conditioners, humidifiers, and air purifiers that discharge the treated air. Alternatively, by installing it in a refrigerator, a closet, a toilet, or the like, it can be used for deodorizing or sterilizing the space. Furthermore, the discharge device can also be applied to an ozone water generator that dissolves ozone in water. The generated ozonized water can be used for washing machines, flush toilets, washing food and tableware, washing medical equipment, and the like.
６　放電装置
１５　ベース部
１６　放電部
３１　第１電極
３２　第２電極
４７　係合凸部
４８　係合凹部
５１　上対向壁
５２　下対向壁
５３　第１磁着体
５４　第２磁着体
５５　上収容凹部
５６　下収容凹部
５７　囲み枠
１１５　ホルダーケース
１１７　指示部 6 Discharge device 15 Base portion 16 Discharge portion 31 First electrode 32 Second electrode 47 Engagement projection 48 Engagement recess 51 Upper facing wall 52 Lower facing wall 53 First magnetic body 54 Second magnetic body 55 Upper accommodation recess 56 lower housing recess 57 enclosing frame 115 holder case 117 indicator

Claims (11)

  1. 　一対の電極（３１・３２）を含む放電部（１６）と、放電部（１６）が着脱自在に装着されるベース部（１５）とを備える放電装置であって、
    　放電部（１６）を装着状態に保持するための装着保持手段が、放電部（１６）に設けられる第１磁着体（５３）と、ベース部（１５）に設けられて第１磁着体（５３）に磁着可能な第２磁着体（５４）とで構成されていることを特徴とする放電装置。     A discharge device comprising a discharge section (16) including a pair of electrodes (31 and 32) and a base section (15) to which the discharge section (16) is detachably attached,
    Mounting and holding means for holding the discharge part (16) in the mounted state comprises a first magnetized body (53) provided on the discharge part (16) and a first magnetized body provided on the base part (15). and a second magnetized body (54) that can be magnetized to (53).
  2. 　放電部（１６）の装着状態において、放電部（１６）の上対向壁（５１）とベース部（１５）の下対向壁（５２）とが上下に対向しており、
    　第１磁着体（５３）が上対向壁（５１）の中央に配置され、第２磁着体（５４）が下対向壁（５２）の中央に配置されている請求項１に記載の放電装置。     When the discharge section (16) is mounted, the upper wall (51) of the discharge section (16) and the lower wall (52) of the base section (15) face each other vertically,
    A discharge according to claim 1, wherein the first magnetized body (53) is arranged at the center of the upper facing wall (51) and the second magnetized body (54) is arranged at the center of the lower facing wall (52). Device.
  3. 　放電部（１６）の装着状態において、放電部（１６）の上対向壁（５１）とベース部（１５）の下対向壁（５２）とが上下に対向しており、
    　上対向壁（５１）と下対向壁（５２）の一方に係合凸部（４７）が設けられ、他方に係合凸部（４７）を受け入れる係合凹部（４８）が設けられている請求項１または２に記載の放電装置。     When the discharge section (16) is mounted, the upper wall (51) of the discharge section (16) and the lower wall (52) of the base section (15) face each other vertically,
    One of the upper facing wall (51) and the lower facing wall (52) is provided with an engaging projection (47), and the other is provided with an engaging recess (48) for receiving the engaging projection (47). Item 3. The discharge device according to Item 1 or 2.
  4. 　係合凸部（４７）が上対向壁（５１）の下面から下向きに突出しており、
    　上対向壁（５１）の上面における係合凸部（４７）の裏側に、第１磁着体（５３）を収容する上収容凹部（５５）が形成されている請求項３に記載の放電装置。     The engagement protrusion (47) protrudes downward from the lower surface of the upper facing wall (51),
    4. The discharge device according to claim 3, wherein an upper housing recess (55) for housing the first magnetized body (53) is formed on the back side of the engaging projection (47) on the upper surface of the upper facing wall (51). .
  5. 　係合凹部（４８）が下対向壁（５２）の上面に設けられており、
    　下対向壁（５２）の下面における係合凹部（４８）の裏側に第２磁着体（５４）が取り付けられている請求項４に記載の放電装置。     An engaging recess (48) is provided on the upper surface of the lower facing wall (52),
    5. The discharge device according to claim 4, wherein the second magnetized body (54) is attached to the back side of the engaging recess (48) on the lower surface of the lower facing wall (52).
  6. 　下対向壁（５２）の下面に、第２磁着体（５４）の取り付け位置を示す指示部（１１７）が設けられている請求項５に記載の放電装置。 The discharge device according to claim 5, wherein an indicator (117) indicating the mounting position of the second magnetized body (54) is provided on the lower surface of the lower facing wall (52).
  7. 　ベース部（１５）が、下対向壁（５２）を有するベースケース（４２）と、第２磁着体（５４）を保持するホルダーケース（１１５）とを備えており、
    　ベースケース（４２）とホルダーケース（１１５）が共にプラスチック材料で形成されて、互いに接合されている請求項５または６に記載の放電装置。     The base portion (15) comprises a base case (42) having a lower facing wall (52) and a holder case (115) holding the second magnetized body (54),
    7. Discharge device according to claim 5 or 6, wherein both the base case (42) and the holder case (115) are made of plastic material and are joined together.
  8. 　下対向壁（５２）の下面に、第２磁着体（５４）の少なくとも上部を収容する下収容凹部（５６）が設けられている請求項５または６に記載の放電装置。 The discharge device according to claim 5 or 6, wherein the lower surface of the lower facing wall (52) is provided with a lower housing recess (56) for housing at least the upper portion of the second magnetized body (54).
  9. 　下対向壁（５２）の下面に、第２磁着体（５４）の少なくとも上部を囲む周回状の囲み枠（５７）が突設されている請求項５または６に記載の放電装置。 The discharge device according to claim 5 or 6, wherein a circumferential surrounding frame (57) surrounding at least the upper part of the second magnetized body (54) protrudes from the lower surface of the lower facing wall (52).
  10. 　囲み枠（５７）の基端部が先端部よりも厚く形成されている請求項９に記載の放電装置。 The discharge device according to claim 9, wherein the base end portion of the surrounding frame (57) is formed thicker than the tip end portion.
  11. 　第２磁着体（５４）が非円形の板状または柱状に形成されている請求項８から１０のいずれかひとつに記載の放電装置。 The discharge device according to any one of claims 8 to 10, wherein the second magnetized body (54) is formed in the shape of a non-circular plate or column.
PCT/JP2023/002920 2022-02-22 2023-01-30 Electrical discharge device WO2023162585A1 (en)

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS616657Y2 (en) * 1980-06-25 1986-02-28
JPH0668255U (en) * 1993-02-26 1994-09-22 東陶機器株式会社 Support structure for remote controller
JPH0850984A (en) * 1994-08-08 1996-02-20 Riken Densen Kk Ozone generating electrode
JP2005226947A (en) * 2004-02-13 2005-08-25 Matsushita Electric Works Ltd Electrostatic atomizing apparatus for bathroom

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS616657Y2 (en) * 1980-06-25 1986-02-28
JPH0668255U (en) * 1993-02-26 1994-09-22 東陶機器株式会社 Support structure for remote controller
JPH0850984A (en) * 1994-08-08 1996-02-20 Riken Densen Kk Ozone generating electrode
JP2005226947A (en) * 2004-02-13 2005-08-25 Matsushita Electric Works Ltd Electrostatic atomizing apparatus for bathroom

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