JP2023133126A - discharge device - Google Patents

Abstract

To provide a discharge device capable of downsizing a discharge device 6.SOLUTION: A discharge device includes a first electrode 31 and a planar second electrode 32 paired with the first electrode 31. The planar second electrode 32 is to be electrified by a second electroconductive body 88, which is elastically adhered closely onto a power-receiving body 161 having the same electrical potential with the second electrode 32.SELECTED DRAWING: Figure 18

Description

The present invention relates to a discharge device in which at least one of a pair of electrodes is planar. This discharge device can be applied to an ozone generator (ozonizer) that generates ozone by discharging in the air, an ion generator (ionizer) that generates various ions (negative ions, hydroxyl radicals, etc.), and the like.

As a prior art document related to this type of discharge device, for example, Patent Document 1 can be mentioned. Patent Document 1 discloses a creeping ozone generator that ozonizes surrounding oxygen by creeping discharge. It consists of a rod-shaped first electrode, a thin plate-shaped second electrode placed on the other side of the plate, and a high-voltage power source that applies a high voltage to both electrodes. The rod-shaped first electrode is connected to a high-voltage power source via a metal clip and a conducting wire, and the thin plate-shaped second electrode is connected to the high-voltage power source via a conducting wire.

Japanese Patent Application Publication No. 2005-272287

An object of the present invention is to provide a discharge device that can make the discharge device 6 compact.

The discharge device according to the present invention includes a first electrode 31 and a planar second electrode 32 paired with the first electrode 31. It is characterized in that it has a second current-carrying body 88 that is responsible for supplying electricity to the second electrode 32, and that the second current-carrying body 88 is elastically in close contact with a power-receiving body 161 having the same potential as the second electrode 32.

A plate-shaped dielectric 33 is arranged between the first electrode 31 and the second electrode 32, the dielectric 33 is in close contact with one surface of the second electrode 32, and the other surface of the second electrode 32 receives power. A configuration may be adopted in which the body 161 is connected.

A configuration may be adopted in which the second electrode 32 is formed thinner than the dielectric 33.

It includes a discharge case 34 that accommodates both electrodes 31 and 32 and a power receiving body 161. The discharge case 34 is provided with an upper receiving part 162 that receives one side of the power receiving body 161, and the other side of the power receiving body 161. A configuration may be adopted in which the second current-carrying body 88 is in close contact with the surface.

The first electrode 31 is formed into a rod shape, and the first electrode 31 has a first current conducting body 87 that is responsible for supplying electricity to the first electrode 31. At one end of the first current conducting body 87, the first electrode 31 An embodiment may be adopted in which the electrode connecting portion 90 is provided so as to be wound one or more times in the circumferential direction of the electrode.

A configuration may be adopted in which a winding portion 91 that biases the electrode connection portion 90 of the first current-carrying body 87 in a direction away from the first electrode 31 is provided.

The discharge case 34 is provided with a pair of electrode protection structures 64 that protect both ends of the first electrode 31, and the electrode protection structures 64 protrude from the discharge case 34 more than the first electrode 31. be able to.

The upper discharge section 16 including the second electrode 32 and the power receiving body 161 can be detachably attached to the lower base section 15 including the second current conducting body 88 .

In the discharge device according to the present invention, the second current-carrying body 88, which is responsible for supplying current to the planar second electrode 32, is elastically brought into close contact with the power-receiving body 161, which has the same potential as the second electrode 32. If the second current-carrying body 88 is brought into close contact with the power receiving body 161 instead of the second electrode 32, the strength of the second electrode 32 can be reduced, so that the second electrode 32 can be made thinner and the discharge part 16 and the entire discharge device 6 can be made thinner. can be made compact. In addition, design tolerances such as the thickness of the power receiving body 161 can be absorbed by elastic deformation of the second current carrying body 88.

A plate-shaped dielectric 33 is arranged between the first electrode 31 and the second electrode 32, the dielectric 33 is in close contact with one surface of the second electrode 32, and the other surface of the second electrode 32 receives power. body 161 is connected. Thereby, the entire discharge device 6 can be made more compact.

When the second electrode 32 is formed thinner than the dielectric 33, the discharge section 16 can be made compact with small vertical dimensions.

It includes a discharge case 34 that accommodates both electrodes 31 and 32 and a power receiving body 161. The discharge case 34 is provided with an upper receiving part 162 that receives one side of the power receiving body 161, and the other side of the power receiving body 161. When the second current-carrying body 88 is brought into close contact with the surface, the power-receiving body 161 pushed by the second current-carrying body 88 is firmly received by the upper receiving part 162, preventing deformation of the power-receiving body 161, and also preventing the power-receiving body 161 and the second The adhesion of the current-carrying body 88 can be improved.

The first electrode 31 is formed into a rod shape, and the first electrode 31 has a first current conducting body 87 that is responsible for supplying electricity to the first electrode 31. At one end of the first current conducting body 87, the first electrode 31 If the electrode connecting portion 90 is provided, which can be wound around one or more times in the circumferential direction, the first electrode 31 and the first current-carrying body 87 can be brought into line contact, and the contact area between the two 31 and 87 can be increased. By increasing the contact area between the first electrode 31 and the first current-carrying body 87, the contact pressure at the connecting portion between the two electrodes 31 and 87 can be reduced, and the long-term durability of the connecting portion can be increased. Even when a part of the surface of the electrode 31 or the first current-carrying body 87 becomes oxidized over time, it is difficult to cause a current failure, and the voltage applied to the first electrode 31 can be maintained at a high level.

If the winding portion 91 that urges the electrode connection portion 90 of the first current-carrying body 87 in a direction away from the first electrode 31 is provided, the adhesion of the electrode connection portion 90 to the circumferential surface of the first electrode 31 is increased. , the electrical resistance between both 31 and 87 can be reduced.

The discharge case 34 is provided with a pair of electrode protection structures 64 that protect both ends of the first electrode 31. When the electrode protection structures 64 protrude from the discharge case 34 more than the first electrode 31, the discharge When the part 16 is turned upside down and falls, it is possible to prevent the first electrode 31 from being directly impacted by hitting the floor or the like first.

If the upper discharge section 16 including the second electrode 32 and the power receiving body 161 is removably attached to the lower base section 15 including the second current carrying body 88, the discharge section 16 which is relatively easy to get dirty can be removed from the base section 15. It can be easily cleaned separately from the Furthermore, if the discharge section 16 breaks down, only the discharge section 16 can be replaced, and repair costs can be reduced compared to the case where the entire discharge device 6 including the base section 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 production line of the discharge device 6 or the ozonizer 1.

FIG. 8 is a vertical side view of a main part of the discharge device according to the first embodiment, and is a sectional view taken along the line CC in FIG. 7. FIG. 2 is a longitudinal sectional front view schematically showing an ozonizer equipped with the same discharge device. It is a block diagram showing a control system of an ozonizer. It is a perspective view of the same discharge device. It is an exploded perspective view of the discharge device. It is a perspective view of the discharge part and base part which constitute the same discharge device. FIG. 2 is a longitudinal sectional front view of the discharge device. 8 is a sectional view taken along line BB in FIG. 7. FIG. FIG. 3 is a longitudinal sectional side view of the constituent members of the discharge section. 8 is a sectional view taken along line AA in FIG. 7. FIG. FIG. 8 is a cross-sectional view taken along line AA in FIG. 7 of the separated discharge section and base section. 8 is a sectional view taken along the line CC in FIG. 7 of the separated discharge section and base section. FIG. It is a top view of a base part and a discharge part turned over. FIG. 3 is a plan view of an electrode pair constituting a discharge section. FIG. 7 is a longitudinal sectional front view of a discharge device according to a second embodiment. 16 is a sectional view taken along line DD in FIG. 15. FIG. It is a top view of the electrode pair which comprises the discharge part of the same discharge device. FIG. 7 is a front view schematically showing a discharge device according to a third embodiment (the present invention). FIG. 7 is a front view schematically showing a discharge device according to a fourth embodiment. FIG. 7 is a front view schematically showing a discharge device according to a fifth embodiment. It is a figure showing the current supply structure of the discharge device concerning a 6th embodiment. It is a figure showing the current supply structure of the discharge device concerning a 7th embodiment. It is a figure showing the electrode support structure of the discharge device concerning an 8th embodiment. FIG. 7 is a longitudinal sectional side view of main parts of a discharge device according to a ninth embodiment. FIG. 7 is a front view schematically showing a discharge device according to a tenth embodiment. FIG. 7 is a front view schematically showing a discharge device according to an eleventh embodiment.

(First Embodiment) A first embodiment of a discharge device is shown in FIGS. 1 to 14. The discharge device of this embodiment is built into a tabletop ozonizer (ozone generator) and plays the role of generating ozone by discharging in the air. In this embodiment, front and back, left and right, and up and down follow the cross arrows shown in FIGS. 2 and 4 and the front and back, left and right, and up and down indications written near each arrow. The same applies to the second embodiment and subsequent embodiments.

As shown in FIG. 2, the casing 2 that serves as the base of the ozonizer 1 consists of a main case 3 that occupies the majority of the casing 2, and a sub-case 4 that is detachably joined to the top surface of the main case 3. By joining 4, a substantially L-shaped air passage 5 is formed within the casing 2. In the air passage 5, a discharge device 6 that generates 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 blowing fan 7 is arranged facing the suction port 8. The left part of the upper wall of the sub case 4 is an inclined surface that slopes downward from right to left, and the air outlet 9 of the air passage 5 is provided on this inclined surface. The blower fan 7 forms a leftward airflow in the air passage 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 is formed by joining an upstream part 11 formed only by the main case 3 and both cases 3 and 4 vertically from the inlet 8 (upstream side) to the outlet 9 (downstream side). It is divided into a midstream section 12, which is formed by the sub case 4, and a downstream section 13, which is formed only by the sub case 4. The blower fan 7 and the fan motor 14 serving as a driving source are arranged in the upstream section 11, and the discharge device 6 is arranged in the midstream section 12. The discharge device 6 consists of a lower base part 15 and an upper discharge part 16. The base part 15 is fixed to the lower half part of the midstream part 12, that is, the main case 3, and the discharge part 16 is detachably attached to the base part 15. It is installed. The base portion 15 is provided with a mounting detection section 17 (see FIG. 3) that detects whether or not the discharge section 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 can be exposed and maintenance of the discharge device 6 can be performed. Specifically, for example, after separating the discharge section 16 from the base section 15, the surface of the discharge section 16 can be cleaned. A safety switch 18 is provided on the joint surface of the main case 3 with the sub case 4 to mechanically detect whether or not the sub case 4 is joined.

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 source 23 (see Figure 3) such as a commercial power source via a power cord, and a power switch 24 for turning on the power is provided on the front surface (left side) of the main case 3. There is. The booster circuit 22 boosts the AC voltage of, for example, 100V supplied from the power supply unit 23 to several kilovolts, and applies the high voltage to the discharge device 6 . Further, the main case 3 has a built-in 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 driving source for the IC of the control section 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 section 23 may be a power adapter that outputs a DC voltage, and in that case as well, the booster circuit 22 boosts the DC voltage and applies it to the discharge device 6.

When the power switch 24 is turned on by the user, the control section 21 first checks the presence or absence of the discharge section 16 and the sub case 4 based on the outputs of the attachment detection section 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 controls the power supply from 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 airflow is formed in the air passage 5 from the inlet 8 to the outlet 9, and air containing ozone generated around the discharge device 6 is blown out from the outlet 9. When separation of the sub case 4 or the discharge section 16 is confirmed, the control section 21 immediately interrupts energization to the booster circuit 22, etc. According to this, high voltage is not applied from the booster circuit 22. Electric shock accidents caused by the user touching the electrodes 31, 32 (described later) or terminals 85, 86 (described later), etc., which are in a state of being closed can be reliably prevented.

Note that, when starting the power supply to the fan motor 14 and the booster circuit 22, the control unit 21 lights up the notification means 27, which is a lamp, in green, for example, to inform the user that the ozonizer 1 is being driven. Good too. Further, if the presence of the discharge section 16 and the sub case 4 cannot be confirmed, the notification means 27 may be turned on, for example, in red to notify the user of this fact.

A light detection section 28 is provided near the discharge device 6 in the air path 5 to detect blue light emitted by the discharge section 16 during discharge. Specific examples of the light detection section 28 include a color sensor and a camera using photodiodes. The control unit 21 can determine the degree of dirt (accumulation of dust, etc.) on 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 large, the control unit 21 can cause the notification means 27 to turn on, for example, in yellow to urge the user to clean the discharge device 6 as soon as possible.

As shown in FIG. 4, the discharge device 6 includes a base portion 15 fixed within the air passage 5, and a discharge portion 16 detachably attached to the upper side of the base portion 15. If the discharge part 16 is detachable from the base part 15, the discharge part 16, which is relatively easy to get dirty, can be easily cleaned while being separated from the base part 15. Furthermore, if the discharge section 16 breaks down, only the discharge section 16 can be replaced, and repair costs can be reduced compared to the case where the entire discharge device 6 including the base section 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 production line of the discharge device 6 or the ozonizer 1. The entire discharge section 16 is formed rotationally symmetrically around the vertical axis, more precisely, 2-fold symmetrically. 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 or second posture.

The discharge section 16 includes 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 these, and the like. The upper first electrode 31 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 lower second electrode 32 is composed of a film formed on the lower surface of the dielectric 33 by a film forming method such as sputtering. Each electrode 31 and 32 can be formed 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. Further, the diameter of the round bar-shaped first electrode 31 was 1 mm, and the thickness of the film-shaped second electrode 32 was 50 to 150 nm. By making the second electrode 32 a thin film, the discharge section 16 can be made compact with small vertical dimensions.

The dielectric 33 is made of an insulator such as glass and is formed into a horizontal rectangular plate shape long from side to side. Specific examples of insulating glass include borosilicate glass and quartz glass. In this embodiment, the thickness of the dielectric 33 is 0.7 mm. The discharge case 34 is made of insulating plastic, and has a rectangular discharge opening 35 formed in its upper surface to expose the first electrode 31 and the dielectric 33 upward.

As shown in FIG. 5, the discharge case 34 is composed of a rectangular frame-shaped outer case 37 having openings at the top and bottom, and a rectangular dish-shaped inner case 38 opening downward. An inner case 38 is fitted therein. The upper opening of the outer case 37 functions as the discharge opening 35, and the lower opening of the outer case 37 is closed by 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. 1). 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 of course, this arrangement may be reversed. Engagement structures can also be provided on the left and right walls of both cases 37 and 38.

As shown in FIG. 6, the base case 42 serving as the base of the base part 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 the upper part 43 is relatively small. It is formed in the shape of a rectangular and stepped stand which integrally includes a large lower part 44 and a large lower part 44. The lower part 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 inside the inner case 38 to receive the upper stage portion 43 and surround it from the front, rear, left and right sides. A downward engaging convex portion 47 is formed protrudingly at the center of the bottom surface of the mounting recess 46, and correspondingly, an upward engaging convex portion 47 for receiving the engaging convex portion 47 is formed at the center of the top surface of the upper section 43. A recessed portion 48 is formed. The engagement protrusion 47 is a flat projection with a rectangular cross section, and the engagement recess 48 is a rectangular flat depression slightly larger than the engagement protrusion 47.

When the discharge section 16 is attached to the base section 15 from above, the upper part 43 of the base case 42 fits into the inner case 38 of the discharge case 34 from below and engages with the attachment recess 46, as shown in FIGS. 7 and 8. At the same time, the engagement protrusion 47 engages with the engagement recess 48. These engagements restrict horizontal displacement and rotation about the vertical axis of the discharge section 16 relative to the base section 15. Note that the planar shape of the engagement protrusion 47 and the engagement recess 48 is not limited to a rectangle, but if it is a non-circular shape such as another polygon or an oval, the engagement protrusion 47 is surrounded by the engagement recess 48. It is possible to restrict displacement and rotation of the discharge section 16 by surrounding it with a wall surface without any gaps. It is also possible to provide a plurality of sets of engagement protrusions 47 and engagement recesses 48, and in this case, the displacement and rotation of the discharge section 16 can be restricted regardless of the planar shapes of both 47 and 48.

When the discharge section 16 is installed, the horizontal top walls of the inner case 38 and the upper section 43 are vertically opposed to each other. Hereinafter, the portion of the top wall of the inner case 38 that faces the upper section 43 (excluding the left and right ends) will be referred to as an upper opposing wall 51, and the top wall of the upper section 43 will be referred to as a lower opposing wall 52. These opposing walls 51 and 52 are provided with mounting and holding means for preventing the discharge section 16 from unintentionally separating upward from the base section 15 and for holding the discharge section 16 in the mounted state. This mounting and holding means includes a rectangular parallelepiped-shaped magnet 53 attached to the upper opposing wall 51 of the inner case 38 and a rectangular plate-shaped magnetic body 54 attached to the lower opposing wall 52 of the upper stage portion 43.

Specifically, an upper housing recess 55 is formed at the center of the upper surface of the upper facing wall 51 and is opened upward and accommodates the magnet 53, and an upper housing recess 55 is formed at the center of the lower surface of the lower facing wall 52 and is opened downward. A lower accommodating recess 56 for accommodating the magnetic body 54 is formed. The upper surface of the magnet 53 accommodated in the upper accommodation recess 55 is substantially flush with the upper surface of the upper opposing wall 51 . The above-mentioned attachment detection section 17 made of a magnetic sensor is fixed to the lower surface of the magnetic body 54, and the attachment detection section 17 is housed in the lower accommodation recess 56 together with the magnetic body 54.

The magnet 53 constituting the attachment holding means is arranged on the back side (upper side) of the engagement convex portion 47 with the upper opposing wall 51 in between, and the magnetic body 54 is arranged in the engagement recess 48 with the lower opposing wall 52 in between. It is located on the back side (lower side) of the Therefore, when the engaging protrusion 47 is engaged with the engaging recess 48, the magnet 53 is located close to and directly above the magnetic body 54, and the magnetic body 54 is reliably attracted to the magnet 53. . This adsorption force can prevent unintended upward separation of the discharge section 16 from the base section 15. When the attachment detection section 17 located below the magnetic body 54 detects the magnetic field generated by the magnet 53, it outputs a signal to the control section 21. By receiving the signal, the control unit 21 can determine that the discharge unit 16 is attached to the base unit 15. When the magnetic body 54 is placed in the upper part 43 of the base case 42, compared to the case where it is placed in the lower part 44, it becomes difficult for the impact when the discharge device 6 receives an external force to reach the magnetic body 54, and the discharge part 16 becomes difficult to come off from the base portion 15.

The magnet 53 accommodated in the upper accommodation recess 55 is surrounded by the walls of the upper accommodation recess 55 on all sides, front, rear, left, and right, thereby restricting horizontal displacement and rotation about the vertical axis. Similarly, the magnetic body 54 accommodated in the lower accommodation recess 56 is also restricted from shifting in the horizontal direction and rotating around the vertical axis by being surrounded by the walls of the lower accommodation recess 56 on all sides, front, back, left, and right. . Note that the planar shape of the magnet 53 and the magnetic body 54 is not limited to a rectangle. For example, if it is a non-circular shape such as another polygon or an oval, the magnet 53 is surrounded by walls of the accommodation recesses 55 and 56. The displacement movement and rotation of the magnetic body 54 can be restricted. The arrangement of the magnet 53 and the magnetic body 54 may be reversed, but if the magnet 53 is arranged on the side of the discharge part 16, the discharge part 16 separated from the base part 15 can be attracted and held on a stainless steel sink or the like. This is convenient when drying the discharge section 16 after washing it with water.

The second electrode 32 and the dielectric 33 are adhesively fixed to the upper surface of the upper opposing wall 51 (and the magnet 53) of the inner case 38 via a cushioning material 58 made of double-sided tape. The cushioning material 58 is formed into a rectangular shape that is one size larger than the dielectric material 33, and the second electrode 32 is sandwiched between the dielectric material 33 and the cushioning material 58 from above and below. The peripheral edge of the cushion material 58 is elastically deformed and is in close contact with the dielectric 33. As shown in FIG. 8, the upper ends of the front and rear walls of the outer case 37 project inward toward the rod-shaped first electrode 31, and the lower surfaces of the projecting parts receive the front and rear edges of the dielectric 33. An upper inner receiving part (upper receiving part) 59 and a lower outer receiving part 60 that receive the front and rear edges of the cushioning material 58 are formed in a stepped shape.

The dielectric 33 is held between the outer case 37 (inner receiving portion 59) and the inner case 38 (upper facing wall 51) from above and below. The cushioning material 58 located between the dielectric 33 and the inner case 38 is elastically deformed by being pushed by the dielectric 33 and the outer receiving part 60 from above and by the inner case 38 from below, thereby changing the thickness of the dielectric 33, etc. absorb design tolerances. Note that the dielectric 33 is positioned in the front-rear direction by a vertical wall between the inner receiving part 59 and the outer receiving part 60 of the outer case 37. Further, as shown in FIG. 5, a pair of left and right upper walls 61 that constitute the left and right 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 in the discharge case 34 . The electrode support structure 64 includes an upper support portion 65 provided on both left and right sides of the discharge opening 35 in the outer case 37, and a lower support portion protruding from both left and right ends of the top wall of the inner case 38 (both left and right sides of the upper opposing wall 51). 66. The upper support portion 65 is formed in the front and rear center of each upper wall 61 of the outer case 37 to bulge out in the shape of a tunnel extending from side to side. An upper semicircular receiving groove 67 for receiving the upper half of the first electrode 31 is recessed in the inner surface of the upper support part 65, and a first energizing groove 67, which will be described later, is provided at the left and right middle part of each receiving groove 67. A relief recess 68 is formed to receive the electrode connection portion 90 of the body 87 (see FIG. 7). The outer side (the tip end side of the first electrode 31) of both the left and right ends of each receiving groove 67 is directly above the lower semicircular receiving part 69 (see FIG. 9) that is recessed in the tip surface of the lower support part 66. The two electrodes 67 and 69 cooperate to sandwich the first electrode 31 from above and below. An introduction groove 70 (see FIG. 9) is formed in the inner surface of the left and right walls of the outer case 37 and extends downward in continuation with the receiving groove 67. When assembling the discharge section 16, the first electrode 31 can be slid upward along the introduction groove 70 to a position where it is received by the receiving groove 67.

The electrode support structure 64 of this embodiment is composed of an upper support part 65 (receiving groove 67) and a lower support part 66 (receiving part 69) that are in close contact with the circumferential surface of the first electrode 31. Although vertical movement and longitudinal movement are restricted, this is not essential in the present invention, and the electrode support structure 64 may allow some movement of the first electrode 31. For example, the hole surrounded by the receiving groove 67 and the receiving part 69 can be made into an oblong shape in the vertical direction, and the vertical movement of the first electrode 31 can be allowed within the range of its length. In short, the electrode support structure 64 only needs to have the minimum function of supporting the first electrode 31. Further, the electrode support structure 64 may be arranged only at one end of the first electrode 31 to support it in a cantilevered manner. According to this, the electrode support structure 64 on either the left or right side can be omitted, and the structure of the discharge case 34 can be simplified accordingly, contributing to cost reduction of the discharge device 6. In this case, the first electrode 31 can be formed in a straight rod shape, a zigzag shape, a crank shape, a meandering shape, a spiral shape, or the like.

When the set of the first electrode 31, dielectric 33, and second electrode 32 is defined as an electrode unit 71 (see FIG. 8), the electrode unit 71 is placed inside the discharge case 34 together with the cushioning material 58, and the outer case 37 and the inner case 38 are It is sandwiched from above and below by Specifically, the first electrode 31 constituting the upper part of the electrode unit 71 is supported from above by the upper support part 65 of the outer case 37, and the second electrode 32 and the dielectric 33 constituting the lower part of the electrode unit 71 are supported from above by the upper support part 65 of the outer case 37. , 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 part 72 that receives the surface of the dielectric 33 on the second electrode 32 side, or a lower receiving part 72 that receives the second electrode 32 from the back side of the dielectric 33.

Note that it is not essential that the first electrode 31 come into contact with the upper surface of the dielectric 33, and both 31 and 33 may face each other vertically with a slight gap therebetween. Specifically, for example, a support structure that supports the dielectric 33 (and the second electrode 32) at a position downwardly away from the first electrode 31 can be provided separately from the electrode support structure 64. Alternatively, a spacer or a bush can be interposed between the first electrode 31 and the dielectric 33. In this case, the first electrode 31 may be urged downward by a first current-carrying body 87, which will be described later, and pressed against a spacer or the like.

As the discharge device 6 is driven, that is, discharges, white dust mainly composed of nitrates 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, nitrogen, oxygen, and moisture in the air can react to form nitric acid, which causes nitrate, or dust, accumulation. Since this dust becomes a hindrance to discharge, it is desirable to remove it periodically, and for this purpose, in addition to washing with water, a cleaning brush can be used.

The direction of movement of the cleaning brush is preferably the left-right direction that corresponds to the direction in which the first electrode 31 extends, so that the bristles of the cleaning brush are moved from one end of the first electrode 31 to the other end, The surfaces of the first electrode 31 and the dielectric 33 can be cleaned at the same time. As shown in FIG. 4, in order to smoothly introduce the bristles of the cleaning brush to the surface of the dielectric 33 and to smoothly lead out the bristles that have captured dust on the surface, the outer case 37 of the discharge case 34 is Upward grooves 73 are provided on the upper surface adjacent to both left and right sides of the dielectric 33 (discharge opening 35). The top surface of the dielectric 33 and the bottom surface of the groove portion 73 are flush with each other. Therefore, dust can be prevented from being caught between the dielectric 33 and the groove 73, and can be easily swept out without leaving any dust behind.

Furthermore, a pair of protrusions 74 are provided on the upper surface of the outer case 37 of the discharge case 34, extending parallel to the first electrode 31 with the dielectric 33 (discharge opening 35) in between. The side surfaces facing the dielectric 33 at the left and right center portions of each protrusion 74 constitute a center guide surface 75, and the side surfaces continuous on both 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 divided by the protrusion 74 (end guide surface 76), the upper wall 61, and the upper support portion 65, and the groove portion 73 is formed on both the front and rear sides of each of the left and right upper support portions 65. There is.

The central guide surface 75 of each protrusion 74 guides the bristles of the cleaning brush in the left-right direction and holds 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. According to these guide surfaces 75 and 76, the bristles of the cleaning brush can be smoothly introduced from one groove 73 to the surface of the dielectric 33, and smoothly led out from the surface to the other groove 73. The user can, for example, introduce a cleaning brush from the left groove 73 and move the brush straight to the right to capture 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, the removal of dust, that is, cleaning is completed.

The above cleaning work is performed with the discharge section 16 separated from the base section 15. When removing this, the left and right upper support parts 65 function as knobs. In order to indicate to the user that these upper support parts 65 are knobs, marks 79 made of protrusions are provided at the front and back centers of the left and right outer surfaces of the discharge case 34 (outer case 37). Thereby, the user can recognize that the upper support part 65 located directly above the mark 79 is the knob, and for example, place the thumb on one upper support part 65 and the index finger on the other upper support part 65, and discharge. The part 16 can be separated from the base part 15 by pinching it with two fingers from both the left and right sides and pulling it up. The left and right dimensions of the discharge section 16 (discharge case 34) according to this embodiment are approximately 45 mm, and the front and rear dimensions are approximately 16 mm.

By using the upper support portion 65 that protrudes further upward than the first electrode 31 as a knob, it is possible to effectively prevent the user from touching the first electrode 31 and the dielectric 33 and getting sebum etc. thereon. If the mark 79 indicates that the upper support part 65 is a knob, the user may pick a part other than the upper support part 65, for example, the front and rear walls of the discharge case 34, and accidentally touch the first electrode 31 or the dielectric 33. This can often be prevented. The mark 79 may be a mark printed on the discharge case 34, but by making it a protrusion, the mark 79 also functions as a non-slipper, allowing the user to firmly hold the discharge case 34. can.

Moreover, since the tunnel-shaped upper support part 65 that covers the first electrode 31 from above protrudes upward more than the first electrode 31, when the discharge part 16 turns upside down and falls, it will first hit the floor or the like. This can prevent a direct impact from being applied to the first electrode 31. In other words, the upper support portion 65 also serves as the first protection portion 81 that protects the first electrode 31 from falling impact. Furthermore, the pair of protrusions 74 provided at the front and rear of the outer case 37 also protrude upwards from the first electrode 31, although their protrusion dimension is smaller than that of the first protection part 81 (upper support part 65). 7), it can hit the floor or the like first in the same way as the first protection part 81. In other words, the protrusion 74 constitutes a second protection part 82 that protects the first electrode 31 from falling impact.

Next, a structure for supplying electricity to each electrode 31 and 32 will be explained. As shown in FIG. 7, the base portion 15 is provided with a first terminal 85 and a second terminal 86 that are supplied with an AC voltage of several kV from the booster circuit 22, and the first electrode 31 is connected to the first current-carrying body 87. The second electrode 32 is electrically connected to the first terminal 85 through the second terminal 85, and the second electrode 32 is electrically connected to the second terminal 86 through the second current-carrying body 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 current-carrying bodies 87 and 88. The terminals 85 and 86 and the current-carrying bodies 87 and 88 are made of metal such as gold-plated stainless steel.

As shown in FIG. 10, the first current-carrying body 87 is formed by bending a single conductive wire (metal wire), and the first current-carrying body 87 is formed by bending a single conductor wire (metal wire). A tension portion 93) and a terminal connection portion 92 are integrally provided. The electrode connecting portion 90 is formed in a coil shape with the axial direction in the left-right direction, and is wound tightly around the circumferential surface of the first electrode 31 (see FIG. 7). 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 downwardly one end of the electrode connecting portion 90 that is continuous with the vertical portion. By pulling one end of the electrode connection part 90 downward with the winding part 91, the adhesion of the electrode connection part 90 to the circumferential surface of the first electrode 31 can be improved. The reason why the seaming portion 91 exhibits springiness in this manner is that the horizontal portion of the seaming portion 91 is received by the lower surface of the upper wall 61 of the outer case 37, that is, the seat portion 94.

As shown in FIG. 5, the diameter R2 of the inner peripheral surface of the electrode connecting portion 90 in its natural state before being wound around the first electrode 31 is slightly smaller than the diameter R1 of the first electrode 31 (R2< R1). By press-fitting the first electrode 31 into the electrode connecting portion 90, the electrode connecting portion 90 is pushed from inside by the first electrode 31 and is wound around the electrode 31 in an enlarged diameter state. According to this, it is possible to firmly bring the electrode connecting portion 90 into close contact with the first electrode 31 over the entire circumferential length of the first electrode 31, thereby making it possible to achieve a point contact state in which both the electrodes 31 and 90 contact only at one or several points in the circumferential direction. This can be reliably prevented. In addition, when the electrode connection part 90 is firmly attached to the first electrode 31, the electrode connection part 90 can be connected to the first electrode without the need for welding and fixing the tip of the electrode connection part 90 to the first electrode 31. 31 can be reliably prevented from unraveling (of course, it can also be fixed by welding to ensure complete safety). These effects can be further enhanced by pulling the electrode connection part 90 downward with the seaming part 91, but even if the seaming part 91 is omitted, sufficiently high effects can be obtained.

In the present invention, the cross-sectional shape of the first electrode 31 is not limited to a perfect circle, and may be other shapes such as an ellipse, an ellipse, a regular polygon, a rhombus, a cross, a D-shape, etc. In these cases, the electrode connecting portion 90 is formed in a shape that allows close contact (line contact) with the circumferential surface of the first electrode 31, corresponding to the first electrode 31. It is also possible to make a D cut or the like only on the end portion of the first electrode 31 around which the electrode connecting portion 90 is wound, thereby giving the various non-circular cross sections described above. When the electrode connecting portion 90 is brought into close contact (line contact) with the peripheral surface of the non-circular cross-sectional portion of the first electrode 31, the rotation of the first electrode 31 around the central axis can be restricted by the electrode connecting portion 90. Further, the first electrode 31 may be formed in the shape of a hollow round pipe or square pipe.

The terminal connecting portion 92 continuous to the lower side of the winding portion 91 is formed in the shape of a compression coil spring with the vertical direction as the axial direction. When the discharge section 16 is installed as shown in FIG. Ru. At this time, the terminal connecting portion 92 is compressed in the vertical direction, and its upper end is received by the seat portion 94 similarly to the horizontal portion of the seaming portion 91. The lower end of the terminal connecting portion 92 , that is, the first contact 95 is formed in an annular shape, and a spring receiving portion 96 that fits inside the first contact 95 is formed protruding from the upper surface of the first terminal 85 . When the spring receiving part 96 enters and engages inside the first contact 95, the displacement movement of the terminal connecting part 92 with respect to the first terminal 85 is restricted, and the electrical connection between the two 85 and 92 becomes more stable. do.

According to the first current-carrying body 87 that integrally includes the electrode connecting portion 90, the winding portion 91, and the terminal connecting 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 compressed terminal connection portion 92 is elastically closely attached to the first terminal 85, the electrical connection between the two 85 and 92 becomes stable and reliable, and in addition, the discharge case 34 (outer case 37) It is possible to absorb design tolerances in the vertical dimensions of the base case 42 and the like. Further, the terminal connecting portion 92 is spaced apart from the vertical portion of the winding portion 91 in the horizontal direction (front-back direction) via the horizontal portion thereof. According to this, the downward biasing force acting on the electrode connecting portion 90 from the vertical portion of the seaming portion 91 is prevented from being canceled by the repulsive force of the terminal connecting portion 92, and the biasing force is applied to the electrode connecting portion 90. can be brought into close contact with the circumferential surface of the first electrode 31.

A substantially cylindrical storage boss 99 is provided on the lower surface of the upper wall 61 of the outer case 37 and projects downward so as to surround the seat 94 and define a storage hole 98 for the terminal connection portion 92 of the first current-carrying body 87. be done. The upper half of the terminal connecting portion 92 is housed in the housing hole 98, and by surrounding the upper half of the terminal connecting portion 92 with the housing 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 storage boss 99 to allow the horizontal portion of the winding portion 91 to be inserted therethrough.

The top 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 circumferential surface of the insertion hole 100 is close to and surrounds the outer circumferential 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 is protruded from the upper surface of the lower section 44 of the base case 42 and faces the storage boss 99 when the discharge section 16 is attached. The terminal block 101 is formed into a rectangular tube shape that opens upward, and a spring receiving portion 96 of the first terminal 85 is arranged inside the terminal block 101 .

As shown in FIG. 11, when the discharge section 16 is separated from the base section 15, the first current-carrying body 87 moves together with the discharge section 16, and when the terminal connection section 92 is separated from the first terminal 85, it is compressed. The length returns to the natural length L1. With respect to this natural length L1, the depth D1 of the storage hole 98 (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 storage hole 98 is greater than one half of the natural length L1 of the terminal connection portion 92, that is, if the upper half of the terminal connection portion 92 is stored in the storage hole 98, buckling will occur relatively easily. By surrounding the vertical center portion of the terminal connection portion 92 with the storage boss 99, buckling thereof can be accurately prevented. In addition, since the terminal connecting portion 92 will not shrink beyond the depth D1 of the storage hole 98 (to become shorter than the depth D1), this depth D1 is set to half the natural length L1 of the terminal connecting portion 92. By setting the value larger than 1, it is possible to prevent the terminal connection portion 92 from being excessively compressed when the discharge section 16 is attached, suppress deterioration of the terminal connection portion 92, and extend the life of the first current-carrying body 87. The lower end of the terminal connection part 92 in the natural length L1 is located above the lower end of the discharge case 34, and according to this, when the discharge part 16 separated from the base part 15 is placed on a tabletop or the like, the terminal By preventing the connecting portion 92 from touching the tabletop, that is, from being compressed, deterioration of the terminal connecting portion 92 can be suppressed and its life can be extended.

As shown in FIGS. 1 and 12, electricity is supplied from the second terminal 86 to the second electrode 32 via a pair of front and rear second current-conducting bodies 88. Each of the second current-carrying bodies 88 is made of a single conducting wire (metal wire) and is formed in the shape of a compression coil spring with the vertical direction as the axial direction. The first current carrying body 87 is connected to the first electrode 31 of the discharge section 16 and is separable from the first terminal 85 of the base part 15, whereas the second current carrying body 88 is connected to the first terminal 85 of the base part 15. It is connected to the second terminal 86 and can be separated from the second electrode 32 of the discharge section 16 . The lower end of the second current conducting body 88 is caulked and fixed to the second terminal 86, so that the second current conducting body 88 is supported by the second terminal 86 in an independent state. In the mounted state of the discharge section 16 shown in FIG. 1, each second current-carrying body 88 is compressed in the vertical direction, and its upper end is elastically brought into close contact with the lower surface of the second electrode 32.

The upper end of the second current conducting body 88 is formed in an annular shape and is in line contact with the lower surface of the second electrode 32. According to this, the contact pressure between both 32 and 88 is reduced, and the second electrode 32 Wear can be suppressed. Further, even when a part of the surface of the second electrode 32 or the second current-carrying body 88 becomes oxidized over time, it is possible to make it difficult to cause a current conduction failure and to maintain the voltage applied to the second electrode 32 at a high level. can.

On the lower facing wall 52 of the base case 42, cylindrical storage bosses 105 and 106 that define a storage hole 104 for the second current-carrying body 88 are provided to protrude upward and downward. The lower half of the second current carrying body 88 excluding the upper end is housed in the storage hole 104, and by surrounding the lower half of the second current carrying body 88 with the storage bosses 105 and 106, The majority portion can be protected from external forces to prevent damage such as deformation. The protruding end (lower end) of the lower storage boss 106 comes into contact with the second terminal 86 and surrounds the connection (fixed by caulking) portion between the second terminal 86 and the second current-carrying body 88 . The tip (upper end) of the upper storage boss 105 comes close to the lower surface of the second electrode 32 without contacting it when the discharge section 16 is attached to the base section 15 . Further, at this time, the upper end portion of the second current conducting body 88 protrudes from the tip of the upper storage boss 105, that is, the upper opening of the storage hole 104, and comes into close contact with the lower surface of the second electrode 32.

Insertion holes 107 and 108 through which the upper storage boss 105 is inserted are provided in the upper opposing wall 51 and the cushion material 58 of the inner case 38 of the discharge section 16, respectively. The inner peripheral surface of each of the insertion holes 107 and 108 is close to and surrounds the outer peripheral surface of the upper storage boss 105. According to these insertion holes 107 and 108, it is possible to prevent the upper storage boss 105 from shifting in the horizontal direction with respect to the second electrode 32, thereby ensuring that the second current-carrying body 88 is placed at an appropriate location on the second electrode 32. It can be brought into contact. Further, the outer circumferential surface of the tip of the upper storage boss 105 is formed in an upwardly tapered shape, and the lower part of the insertion hole 107 of the upper facing wall 51 that allows the insertion thereof is formed with a downwardly widening tapered guide surface. 109 is formed. According to these tapered surfaces, the upper storage boss 105 can be easily guided into the insertion hole 107 when the discharge section 16 is attached to the base section 15 . Note that the guide surface 109 may be an inclined surface having a constant angle as in this embodiment, or may be an inclined surface or a curved surface whose inclination changes, and may be a C surface or an R surface created by chamfering the lower end of the insertion hole 107. There may be.

As shown in FIG. 12, when the discharge section 16 is separated from the base section 15, the second current-carrying body 88 is separated from the second electrode 32, 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 storage hole 104 is greater than one-half of the natural length L2 of the second current-carrying body 88, that is, if the lower half of the second current-carrying body 88 is stored in the storage hole 104, the The storage hole 104 surrounds the upper and lower center portions of the second current-carrying body 88, which are prone to buckling, so that buckling can be accurately prevented. Furthermore, since the second current-carrying body 88 does not shrink beyond the depth D2 of the storage hole 104 (to become shorter than the depth D2), this depth D2 is set to 2 of the natural length L2 of the second current-carrying body 88. By setting the value larger than 1/2, the second current conducting body 88 can be prevented from being excessively compressed when the discharge section 16 is attached, thereby suppressing deterioration of the second current conducting body 88 and extending its life. Further, the height T of the upper storage boss 105 is set to be smaller than one half of the depth D2 of the storage hole 104 (T<D2/2). According to this, the amount of protrusion of the upper storage boss 105 from the lower opposing wall 52 can be reduced, and deformation and damage when the upper storage boss 105 receives external force can be effectively prevented.

According to the configuration in which the compressed second current-carrying body 88 comes into close elastic contact with the second electrode 32, the electrical connection between the two 32 and 88 becomes stable and reliable. Design tolerances such as the upper and lower thicknesses of the dielectric 33 can be accommodated. By supporting the back side, that is, the upper surface of the surface of the second electrode 32 on which the second current-carrying body 88 is received, with the dielectric material 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 reliably reinforced. The upward elastic force acting on the dielectric body 33 from the second current-carrying body 88 via the second electrode 32 is reliably received by the inner receiving portion 59 of the outer case 37 .

When the second electrode 32 and the second terminal 86 are electrically connected by a pair of second current carrying bodies 88, a connection failure may occur between one of the second current carrying bodies 88 and the second electrode 32 or the second terminal 86. Even in the case where the discharge device 6 is connected, the reliability of the discharge device 6 is improved because current can be supplied through the other second current conducting body 88. The spring constants of the pair of second current carrying bodies 88 are the same, and according to this, the elastic force acting on the second electrode 32 is made uniform without being biased toward the front or back, and both second current carrying bodies 88 are By appropriately bringing the two electrodes 32 into close contact with each other, the electrical connection therebetween can be stabilized. Further, the upward elastic force acting on the second electrode 32 from each second current conducting body 88 also acts on the first electrode 31 via the dielectric body 33. Due to the synergistic effect of this upward elastic force and the elastic force of the winding part 91 of the first current-carrying body 87 pulling one end of the electrode connection part 90 downward, the electrode connection part 90 is brought into close contact with the circumferential surface of the first electrode 31. Improves sexual performance.

Of course, the repulsive force in the vertical direction exerted by the terminal connecting portions 92 of the second current carrying body 88 and the first current carrying body 87 in the compressed state is the attraction force between the magnet 53 and the magnetic body 54 that constitute the above-mentioned attachment holding means. is sufficiently small, and the discharge section 16 will not be separated from the base section 15 only by the repulsive force between the second current-carrying body 88 and the terminal connection section 92. However, since a part of the adsorption force of the attachment holding means is offset by the repulsive force of the second current-carrying body 88 and the terminal connection part 92, the user can use a lighter force when cleaning the discharge part 16, etc. It can be separated from the section 15.

As shown in FIG. 13, the first terminal 85 (spring receiving portion 96) is disposed only at one left and right end portion (here, the left end portion) of the base portion 15, whereas the first current conducting body 87 is located at the first electrode 31. are located at both the left and right ends of the Only one of the first current-carrying bodies 87 comes into close contact with the first terminal 85 when the discharge section 16 is attached, and contributes to energization from the first terminal 85 to the first electrode 31 . Further, while the pair of second current-carrying bodies 88 are arranged only on one side of the left and right sides (here, the right side) of the base part 15, the insertion holes 107 and 108 that allow their insertion are arranged on both the left and right sides of the discharge part 16. ing. Only one of the insertion holes 107 and 108 allows the second current-carrying body 88 to be inserted therethrough when the discharge section 16 is attached, thereby contributing to the conduction of current from the second terminal 86 to the second electrode 32.

The reason why the first current carrying body 87 is 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 because the discharge section 16 is arranged around the vertical axis as described above. This is due to the rotational symmetry. When the discharge section 16 is attached to the base section 15 in the first posture, the first current-carrying body 87 on the left side and the insertion holes 107 and 108 on the right side perform their functions, and when the discharge section 16 is attached in the second posture. The first current-carrying body 87 on the right side and the insertion holes 107 and 108 on the left side perform this function. In other words, regardless of whether the two-fold symmetrical discharge section 16 is mounted on the base section 15 in either the first or second posture, the electrodes 31 and 32 and the terminals 85 and 86 are electrically connected via the current carrying bodies 87 and 88. According to this, it is possible to provide a user-friendly discharge device 6 in which the user does not have to worry about the orientation of the discharge section 16 when installing it.

Note that no terminal block 101 is provided at a diagonal position of the first terminal 85 (spring receiving portion 96) in a plan view of the base case 42. Therefore, when the terminal connecting part 92 of one first current carrying body 87 is in close contact with the first terminal 85, the terminal connecting part 92 of the other first current carrying body 87 is extended to its natural length and is extended to the lower stage of the base case 42. The upper surface of the section 44 is faced. In other words, the terminal connection portion 92 can be prevented from being compressed, its deterioration can be suppressed, and its life can be extended. Further, the location where the second electrode 32 is brought into close contact with the second current carrying body 88 is different between the first attitude and the second attitude of the discharge section 16. According to this, wear of the second electrode 32 can be suppressed and its life span can be extended.

The spring receiving part 96 of the first terminal 85 that receives the first current conducting body 87 is arranged in the lower part 44 of the base case 42, whereas the second current carrying body 88 extending from the second terminal 86 is arranged in the upper part of the case 42. It is arranged in section 43. That is, the pair of terminals 85 and 86 and the current conducting bodies 87 and 88 are arranged separately in the upper and lower portions 43 and 44 of the base case 42.

As shown in FIG. 14, the second electrode 32 is formed in a horizontally elongated rectangular shape that is slightly smaller than the dielectric 33, and is provided in parallel with the first electrode 31 in the center of the front and rear, that is, directly below the first electrode 31. An extending void 110 is provided. In other words, 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 gap 110 as a boundary, and both regions 111 and 112 are separated by only three bridging parts 113 on the left and right. Continuous. The bridge portions 113 are arranged at the left and right center and both ends of the second electrode 32 . Although each bridge portion 113 is formed (film-formed) at the same time as the first region 111 and the second region 112, it may be formed separately from these regions 111 and 112.

When a high AC voltage is applied to the first electrode 31 and the second electrode 32, a 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 some of the oxygen contained in the surrounding air changes to ozone. In plan view, the entire second electrode 32 is disposed inside the periphery of the dielectric 33, thereby reliably preventing discharge between the electrodes 31 and 32 without passing through the dielectric 33. . Furthermore, in this embodiment, as shown in FIGS. 7 and 8, the peripheral edge of the cushioning material 58 is in close contact with the dielectric 33, and the peripheral edge of the second electrode 32 is connected to the dielectric 33 and the cushioning material 58 over the entire circumference. 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 passing through the dielectric 33.

In order to cause this silent discharge to occur over a wide range and increase the amount of ozone generated, a gap 110 is provided at the center of the front and back of the second electrode 32, that is, directly below the first electrode 31. Due to the existence 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 below the dielectric 31, and as a result, the dielectric Electric discharge occurs over a wide area on the surface of the body 33. In addition, the void 110 can prevent the discharge from concentrating directly under the first electrode 31, where white dust (nitrate), which can be a hindrance to the discharge, tends to accumulate. If the discharge is generated before and after the first electrode 31 where there is relatively little dust accumulation, the amount of discharge will be maintained for a relatively long period of time, and as a result, the chances of prompting the user to clean the discharge section 16 can be reduced. I can do it.

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 to 2 mm. When the width W2 of the gap 110 is set larger than the width W1 of the first electrode 31, it is possible to further reduce the amount of charge that collects directly under the first electrode 31 on the surface of the dielectric 33, and spread the discharge over a wider range. Further, as shown in FIG. 12, the vertical height H1 of the first electrode 31 is 1 mm, which corresponds 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 smaller than the height H1 of the first electrode 31, the virtual line connecting the front and rear edges of the second electrode 32 and the first electrode 31 is moved from vertical to horizontal, and the dielectric 33 is The distribution of charge on the surface can be brought closer to its front and rear edges, thereby allowing the discharge to spread over a wider area.

Instead of arranging the rod-shaped first electrodes 31 straight from side to side, they can be arranged obliquely in a horizontal plane, for example along the diagonal of the discharge opening 35. According to this, compared to the case where the first electrodes 31 are arranged straight from side to side, the entire length of the first electrodes 31 can be made longer and the range of discharge can be expanded. The first electrode 31 can be bent, curved, or meandering, or two or more first electrodes 31 can be provided, and the range of discharge can also be expanded by these. By widening the range of discharge in this way, the amount of ozone generated can be increased accordingly.

As shown in FIG. 14, among the pair of front and rear second current conducting bodies 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, it is possible to supply voltage to each region 111 and 112, but one of the second current carrying bodies 88 deteriorates and the second electrode 32 or the second terminal 86, a disadvantage arises in that voltage can only be supplied to half the area of the second electrode 32. In order to avoid this disadvantage, in this embodiment, the first region 111 and the second region 112 are connected by the bridge portion 113. Accordingly, even if a connection failure occurs in one of the second current carrying bodies 88, the other A voltage can be supplied to the entire second electrode 32 via the second current-carrying body 88 .

As described above, in the discharge device 6 according to the present embodiment, the second current-carrying body 88 is elastically brought into close contact with the second electrode 32. According to this, the second current conducting body 88 and the second electrode 32 can be electrically connected without the need to inseparably join (soldering or adhesively fixing) the tip of the second current conducting body 88 to the second electrode 32. Therefore, the bonding process can be omitted and the production efficiency of the discharge device 6 can be increased. Further, by using the second current-carrying body 88 that elastically adheres to the second electrode 32, it is possible to ensure that the two electrodes 32 and 88 are brought into contact with each other, thereby preventing the occurrence of a current-carrying failure. In addition, design tolerances such as the thickness dimension of the second electrode 32 can be absorbed by elastic deformation of the second current-carrying body 88.

According to the configuration in which the plate-shaped dielectric 33 is in close contact with one surface of the second electrode 32 and the second current conducting body 88 is in close contact with the other surface of the second electrode 32, the second current conducting body 88 is pressed. The second electrode 32 is securely received by the dielectric 33, thereby preventing deformation of the second electrode 32 and further increasing the adhesion between the second electrode 32 and the second current-carrying body 88. When the dielectric material 33 is formed to be thicker than the second electrode 32, the second electrode 32 can be more securely received by the dielectric material 33, and deformation of the second electrode 32 can be more reliably prevented.

When the rod-shaped first electrode 31 is brought into close contact with the dielectric 33, the first electrode 31 and the dielectric 33 can cooperate to receive the second electrode 32, and deformation of the second electrode 32 can be more reliably prevented. I can do it. By providing an inner receiving portion 59 that receives the surface of the dielectric 33 on the first electrode 31 side, the inner receiving portion 59 and the dielectric 33 can cooperate to receive the second electrode 32, thereby preventing deformation of the second electrode 32. This can be prevented more reliably. Further, when the surface of the dielectric 33 on the first electrode 31 side is received by the inner receiving part 59, the first electrode 31 is prevented from being strongly pressed by the dielectric 33, and deformation of the first electrode 31 can be prevented. .

When the lower end of the second current carrying body 88 is caulked and fixed to the second terminal 86, or when the base portion 15 is provided with a storage hole 104 that accommodates at least the lower part of the second current carrying body 88, the discharge unit 16 is attached. In the front base part 15, the second current-carrying body 88 can be supported in an independent state by the second terminal 86, so that the discharging part 16 can be easily attached to the base part 15.

When the storage hole 104 is divided by an upper storage boss 105 that projects upward from the lower opposing wall 52 of the base portion 15 and a lower storage boss 106 that projects downward from the same wall 52, the storage hole 104 is separated from the lower opposing wall 52. Compared to the case where storage holes 104 of the same depth are divided by bosses protruding from one side of the upper and lower sides, the height of each storage boss 105 and 106 is made smaller to prevent deformation and damage of each storage boss 105 and 106. It can be prevented.

The upper storage boss 105 comes into contact with the discharge portion 16 more frequently than the lower storage boss 106, and is therefore more likely to be deformed or damaged by external force. If the height T of the upper storage boss 105 is set to be smaller than one-half of the depth D2 of the storage hole 104, the amount of protrusion of the upper storage boss 105 from the lower opposing wall 52 will be reduced, allowing it to receive external force. This can effectively prevent the upper storage boss 105 from being easily deformed or damaged.

When an insertion hole 107 surrounding the upper housing boss 105 is provided in the upper facing wall 51 of the discharge section 16 in a penetrating manner, the horizontal displacement of the upper housing boss 105 with respect to the second electrode 32 can be restricted by the insertion hole 107. Thereby, the second current-carrying body 88 can be reliably brought into contact with the appropriate location of the second electrode 32. By forming the downwardly expanding guide surface 109 at the lower part of the insertion hole 107, the upper storage boss 105 can be easily guided into the insertion hole 107 when the discharge section 16 is mounted on the base section 15.

When the lower half of the second current carrying body 88 is stored in the storage hole 104, the upper and lower center parts of the second current carrying body 88, which are relatively prone to buckling, are surrounded by the storage hole 104, thereby accurately preventing the buckling. I can do it. In addition, since the second current conducting body 88 does not shrink beyond the vertical height of the storage hole 104 (to become shorter than the vertical height), this vertical height is set to half the natural length of the second current conducting body 88. By setting the value to be larger than 1, the second current conducting body 88 can be prevented from being excessively compressed when the discharge section 16 is attached, thereby suppressing deterioration of the second current conducting body 88 and extending its life.

If the second electrode 32 and the second terminal 86 are connected by two (plural) second current carrying bodies 88, a connection failure may occur between one second current carrying body 88 and the second electrode 32 or the second terminal 86. Even if this occurs, current can be supplied through the remaining second current-carrying body 88, so that the reliability of the discharge device 6 is improved.

The base case 42 serving as the base of the base part 15 is formed into a stepped shape having an upper part 43 and a lower part 44, and the discharge part 16 is provided with a downward mounting recess 46 that engages with the upper part 43. When mounting the mounting section 16 on the discharge section 15, the engagement between the upper stage section 43 and the mounting recess 46 can restrict displacement of the discharge section 16 in the horizontal direction.

Providing a mounting and holding means between the upper part 43 of the base case 42 and the discharge section 16 can prevent the discharge section 16 from unintentionally separating from the base section 15. Furthermore, compared to the case where the mounting and holding means is disposed in the lower part 44, it becomes difficult for the impact when the discharge device 6 receives an external force to reach the mounting and holding means, making it difficult for the discharge section 16 to come off from the base section 15.

If the first current-carrying body 87 responsible for supplying electricity to the first electrode 31 is provided with a tensioning portion 93 that urges the first electrode 31 in a direction in which it comes into close contact with the dielectric 33, this urging force is transmitted through the dielectric 33. can be applied to the second electrode 32. According to this tensioning portion 93, the second electrode 32 is urged in the opposite direction to the urging force acting on the second electrode 32 from the second current conducting body 88, and the second electrode 32 and the second current conducting body 88 are brought into close contact with each other. You can improve your sexuality.

If the discharge part 16 including the first electrode 31 and the first current carrying body 87 is detachable from the base part 15 including the first terminal 85, the discharge part 16 including the first electrode 31 is relatively easy to get dirty. can be easily cleaned while being separated from the base portion 15. Furthermore, if the discharge section 16 breaks down, only the discharge section 16 can be replaced, and repair costs can be reduced compared to the case where the entire discharge device 6 including the base section 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 production line of the discharge device 6.

When an electrode connection part 90 that is wound around the first electrode 31 one or more times in the circumferential direction of the first electrode 31 is provided at one end of the first current-carrying body 87 that is responsible for supplying electricity to the rod-shaped first electrode 31, the first electrode 31 and the first current-carrying body are connected. By bringing 87 into line contact, the contact area between both 31 and 87 can be increased. By increasing the contact area between the first electrode 31 and the first current-carrying body 87, the contact pressure at the connecting portion between the two electrodes 31 and 87 can be reduced, and the long-term durability of the connecting portion can be increased. Even when a part of the surface of the electrode 31 or the first current-carrying body 87 becomes oxidized over time, it is difficult to cause a current failure, and the voltage applied to the first electrode 31 can be maintained at a high level.

If the winding part 91 is provided to urge the electrode connection part 90 of the first current-carrying body 87 in a direction away from the first electrode 31, the adhesion of the electrode connection part 90 to the circumferential surface of the first electrode 31 is increased, and both The electrical resistance between 31 and 87 can be reduced.

When the electrode support structure 64 is composed of the upper support part 65 and the lower support part 66 that sandwich the circumferential surface of the first electrode 31 from above and below, the first electrode 31 can be simply sandwiched between the upper support part 65 and the lower support part 66 from above and below. The first electrode 31 can be fixed to the discharge case 34 by a simple operation.

When the entire electrode unit 71 consisting of the first electrode 31, dielectric 33 and second electrode 32 is sandwiched from above and below within the discharge case 34, compared to the case where support structures for each electrode 31, 32 and dielectric 33 are provided separately. Therefore, the structure of the discharge case 34 and, by extension, the discharge device 6 can be simplified. By sandwiching the electrode unit 71 together with the cushioning material 58, the electrode unit 71 can be brought into close contact with the cushioning material 58, and its movement can be well controlled. Further, by elastically deforming the cushion material 58, design tolerances of the electrode unit 71 and the discharge case 34 can be absorbed.

When the discharge section 16 is separated from the base section 15, if the lower end of the terminal connection section 92 is positioned above the lower end of the discharge case 34, the terminal connection will be difficult when the discharge section 16 is placed on a tabletop or the like. By preventing the portion 92 from touching the tabletop, that is, from being compressed, deterioration of the terminal connection portion 92 can be suppressed and its lifespan can be extended.

(Second Embodiment) FIGS. 15 to 17 show a second embodiment of the discharge device, and the second current carrying body 88 is disposed at the center of the base portion 15 in plan view. This is different from the first embodiment. The second electrode 32 is formed into a horizontal H-shape as a whole, and a bridge portion 113 is provided only at the left and right center of the second electrode 32 . The second current-carrying body 88 includes an upper current-carrying pin 147 that elastically contacts the lower surface of the bridge portion 113 of the second electrode 32 , and a lower current-carrying pin 147 that urges the current-carrying pin 147 upward toward the second electrode 32 . It is composed of a spring 148 and a current-carrying piece 149 that extends substantially horizontally from the lower end of the current-carrying spring 148, and the tip of the current-carrying piece 149 is connected to the booster circuit 22 via a conductive wire or the like. As is clear from this embodiment, it is sufficient that at least a portion of the second current-carrying body 88 is elastically deformable in the thickness direction of the second electrode 32, that is, in the vertical direction.

The energizing pin 147 and the energizing spring 148 are housed in a storage hole 104 provided vertically through the center of the base case 42, and the energizing pin 147 is slidably guided around the periphery of the housing hole 104 so that only vertical movement is possible. be done. The current-carrying pin 147 is formed into a cylindrical shape made of any metal having excellent conductivity, and its tip (upper end) is a circular horizontal surface and is in surface contact with the lower surface of the second electrode 32 . The energizing spring 148 is formed in the shape of a compression coil spring with its axis extending in the vertical direction, and its upper end is connected to the lower end of the energizing pin 147 .

The base portion 15 includes a bottom cover 145 that fits into the base case 42 from below, and the bottom opening of the storage hole 104 is closed by the bottom cover 145. A circular engagement hole 153 is formed in the center of the inner surface of the bottom lid 145 to receive the tip (lower end) of the lower storage boss 106 . A cylindrical engagement protrusion 154 is formed to protrude and enter the inside of the distal end portion. The lower end of the energizing spring 148 is supported by the inner surface (upper surface) of the bottom cover 145, more precisely, the tip surface (upper surface) of the engagement protrusion 154. Furthermore, a vertical groove 155 is formed at the tip of the lower storage boss 106 to allow the insertion of the current-carrying piece 149 therethrough. Note that either the engagement hole 153 or the engagement protrusion 154 may be omitted, and only the engagement hole 153 or only the engagement protrusion 154 may be provided at the center of the inner surface of the bottom cover 145.

The electrode support structure 64 that supports both ends of the first electrode 31 is composed only of an upper support part 65 provided on the outer case 37 of the discharge case 34, and the lower support part 66 of the inner case 38 is omitted. There is. Each upper support part 65 is provided with a vertically long guide hole 151 into which the first electrode 31 is inserted, and the first electrode 31 is vertically movable relative to the dielectric 33 along the front and rear sides of the guide hole 151. It is possible. In a normal state, the first electrode 31 is urged downward by the winding portion 91 of the first current-carrying body 87 and the upper spring 157, and is brought into close contact with the upper surface of the dielectric body 33.

The upper spring 157 is a compression coil spring whose axial direction is in the vertical direction, and is arranged inside each of the left and right upper support parts 65. A spring recess 158 is provided on the inner surface of the upper support portion 65 to accommodate the upper portion of the upper spring 157. The lower end of the upper spring 157 is in pressure contact with the outer circumferential surface of the electrode connecting portion 90 of the first current-carrying body 87 , so that the downward biasing force of the upper spring 157 acts on the first electrode 31 via the electrode connecting portion 90 . When the first electrode 31 is lifted against the biasing force of the winding portion 91 and the upper spring 157, the area around the lower part of the first electrode 31 can be cleaned with a cleaning brush. When using the upper spring 157 as in this embodiment, the winding portion 91 may be omitted from the first current-carrying body 87. However, if both the winding portion 91 and the upper spring 157 are used, the first electrode 31 can be brought into closer contact with the dielectric 33 more reliably.

The terminal connection portion 92 of the first current-carrying body 87 is formed in the shape of a downwardly expanding conical coil spring. According to this, when the terminal connection part 92 is compressed in the vertical direction, its lower end can be brought into contact with the upper surface of the first terminal 85 over several turns. In other words, the contact area between the two 85 and 92 can be increased, and the electrical resistance between the two 85 and 92 can be reduced. In addition to the above, the coil spring constituting the terminal connection portion 92 can be formed into a bell mouth shape that expands downward, a drum shape that expands upward and downward, etc., and the same effects as above can be obtained in these cases as well. be able to. The lower part of the terminal connecting part 92 may be formed into a barrel shape or the like with a downward convergence, and in this case as well, the lower end of the terminal connecting part 92 is brought into contact with the first terminal 85 over several rounds to achieve the same effect as above. can be obtained. Note that in this embodiment, the spring receiving portion 96 on the upper surface of the first terminal 85 is omitted.

Further, in this embodiment, the mounting holding means for holding the discharge section 16 in the mounted state is composed of two sets of magnets 53 and magnetic bodies 54. The inner case 38 of the discharge case 34 is provided with a pair of left and right engaging protrusions 47, and on the back side (upper side) of each engaging protrusion 47 with the upper opposing wall 51 in between, there is an upper housing that accommodates the magnet 53. A recess 55 is formed. Similarly, the base case 42 is provided with a pair of left and right engaging recesses 48, and on the back side (lower side) of each engaging recess 48 with the lower opposing wall 52 in between, there is a lower housing recess for accommodating the magnetic material 54. 56 is formed. The lower surface opening of the lower storage recess 56 is closed by a bottom cover 145.

The terminal block 101 of the base case 42 is arranged horizontally (to the left) away from the upper section 43. A circumferential regulating rib 159 is provided on the lower surface of the inner case 38 of the discharge section 16 and protrudes downward, and a part of this regulation rib 159 is inserted between the upper part 43 and the terminal block 101 when the discharge section 16 is installed. and comes into contact with the inner surface of the terminal block 101 (the surface facing the upper section 43). In addition to the above-described engagement between the engagement protrusion 47 and the engagement recess 48, when the regulating rib 159 is brought into contact with the inner surface of the terminal block 101, the horizontal displacement movement and the vertical axis of the discharge section 16 relative to the base section 15 are prevented. The rotation of the surroundings can be more reliably regulated. Since the rest is the same as in the first embodiment, the same members are given the same reference numerals and their explanations will be omitted. The same applies to the following third embodiment and subsequent embodiments.

According to the configuration in which the columnar current-carrying pin 147 is urged by the current-carrying spring 148 and comes into close contact with the second electrode 32, the shape of the tip of the current-carrying pin 147 (the contact portion with the second electrode 32) is adjusted to the shape of the second electrode 32. It can be designed relatively freely according to the shape. If the tip of the current-carrying pin 147 is made into a circular horizontal surface and brought into surface contact with the second electrode 32 as in this embodiment, the contact pressure between both 32 and 147 is reduced, and wear of the second electrode 32 is suppressed. Even when a part of the surface of the second electrode 32 or the current-carrying pin 147 becomes oxidized over time, it is difficult to cause a current failure, and the voltage applied to the second electrode 32 can be maintained at a high level. In addition, since the current-carrying pin 147 does not need to exhibit elasticity, its material can be selected with only its conductivity in mind, and compared to the case where the second current-carrying body 88 is entirely made of a spring, Electrical resistance can be reduced.

If the base portion 15 is provided with the storage hole 104 for storing the energizing pin 147 and the energizing spring 148 of the second energizing body 88, the energizing pin 147 and the energizing spring 148 are protected from external force and are prevented from being damaged such as deformation. be able to.

According to the configuration in which the base case 42 has a vertically penetrating storage hole 104 and the bottom cover 145 covers the lower opening of the storage hole 104 to support the energizing spring 148, the energizing spring 148 is inserted into the storage hole 104 from below. By simply joining the bottom cover 145 to the base case 42, the lower end of the energizing spring 148 is supported by the bottom cover 145, and the energizing spring 148 moves the energizing pin 147 toward the second electrode 32. It is possible to exert a biasing force.

An engagement hole 153 for receiving the tip of the lower storage boss 106 is formed on the inner surface of the bottom lid 145, and an engagement protrusion 154 that enters the inside of the tip of the lower storage boss 106 is formed on the bottom of the engagement hole 153. By forming the bottom cover 145 in a protruding manner, the engagement protrusion 154 and the engagement hole 153 can be engaged with the tip of the lower storage boss 106 from the inside and outside, thereby reliably preventing the bottom cover 145 from shifting. Further, when the engagement protrusion 154 enters the tip of the lower storage boss 106, the vertical dimensions of the storage hole 104 are reduced by that amount, so that costs can be reduced by downsizing the energizing spring 148.

According to the winding portion 91 and the upper spring 157 that bias the first electrode 31 into close contact with the dielectric 33, the first electrode 31 can be reliably brought into close contact with the dielectric 33, and This can prevent undesirable movement. When the first electrode 31 can move toward and away from the dielectric 33, the first electrode 31 is separated from the dielectric 33 against the urging force of the winding portion 91 and the upper spring 157, and in this state, the first electrode 31 31 and its surroundings can be thoroughly cleaned with a cleaning brush.

In this embodiment as well, the height T of the upper storage boss 105 that partitions the upper part of the storage hole 104 is set to be smaller than half the depth D2 of the storage hole 104 (T<D2/2). According to this, the amount of protrusion of the upper storage boss 105 from the lower opposing wall 52 can be reduced, thereby effectively preventing deformation and damage of the upper storage boss 105 that is susceptible to external forces. An insertion hole 107 that surrounds the upper storage boss 105 is provided in the upper facing wall 51 of the discharge section 16 in a penetrating manner. By restricting it with the hole 107, the second current-carrying body 88 can be reliably brought into contact with an appropriate portion of the second electrode 32. A downwardly expanding guide surface 109 is formed at the bottom of the insertion hole 107 , which allows the upper storage boss 105 to be easily inserted into the insertion hole 107 when the discharge section 16 is attached to the base section 15 . I can guide you.

(Third Embodiment) FIG. 18 shows a third embodiment (the present invention) of the discharge device, in which the second current-carrying body 88 is elastically in close contact with the power-receiving body 161 having the same potential as the second electrode 32. This is different from the first embodiment. The power receiver 161 is made of a metal piece that is sufficiently thicker than the second electrode 32, and is electrically connected to the second electrode 32 by any means. The second current conducting body 88 is in close contact with the lower surface of the power receiving body 161, and the upper surface of the power receiving body 161 is received by an upper receiving portion 162 provided in the discharge case 34.

When the discharge case 34 that accommodates both electrodes 31 and 32 and the power receiving body 161 is provided with an upper receiving part 162 that receives one surface of the power receiving body 161, and the second current carrying body 88 is brought into close contact with the other surface of the power receiving body 161. , the power receiving body 161 pushed by the second current carrying body 88 can be firmly received by the upper receiving part 162, thereby preventing deformation of the power receiving body 161 and increasing the adhesion between the power receiving body 161 and the second current carrying body 88. . Furthermore, if the second current-carrying body 88 is brought into close contact with the power receiving body 161 instead of the second electrode 32, the strength of the second electrode 32 can be reduced. The whole can be made compact.

(Fourth Embodiment) FIG. 19 shows a fourth embodiment of a discharge device, which is different from the first embodiment in that the first electrode 31 and the second electrode 32 are formed of a metal plate having a predetermined thickness. It differs from The first electrode 31 is adhesively fixed to the upper surface of the dielectric 33, and the second electrode 32 is adhesively fixed to the lower surface of the dielectric 33 so as to be in close contact with each other. Like the second current conducting body 88 , the first current conducting body 87 is formed in the shape of a compression coil spring whose axial direction is in the vertical direction, and its lower end is fixed to the first terminal 85 . The second electrode 32 and the dielectric body 33 are provided with through holes vertically penetrating through which the first conductive body 87 is inserted, and the upper end of the first conductive body 87 is connected to the first electrode 3 through these through holes. elastically adheres to the bottom surface of the Note that a predetermined insulation treatment is performed between the edge of the through hole of the second electrode 32 and the first current-carrying body 87. The discharge case 34 is provided with an upper receiving part 164 that receives the upper surface of the first electrode 31 in addition to an upper receiving part 59 that receives the upper surface of the dielectric 33 .

When the planar first electrode 31 is brought into close contact with the dielectric 33, the first electrode 31 and the dielectric 33 can cooperate to receive the second electrode 32, and deformation of the second electrode 32 can be more reliably prevented. be able to. When the upper receiving part 164 is provided to receive the first electrode 31 from the back side of the dielectric 33, the upper receiving part 164 securely receives the first electrode 31 pushed from the first current carrying body 87, thereby preventing deformation of the first electrode 31. This can be prevented and the adhesion between the first electrode 31 and the first current-carrying body 87 can be further improved. Further, the second electrode 32 pushed from the second current-carrying body 88 can be received by the upper receiving part 164, the first electrode 31, and the dielectric body 33 in cooperation with each other, and deformation of the second electrode 32 can be more reliably prevented. Can be done.

(Fifth Embodiment) FIG. 20 shows a fifth embodiment of the discharge device, in which the first current-carrying body 87 is elastically in close contact with the power-receiving body 161 having the same potential as the first electrode 31. It differs from the form. The power receiver 161 is made of a metal piece that is thicker than the first electrode 31 and the second electrode 32, and is electrically connected to the first electrode 31 by any means. The first current-carrying body 87 is in close contact with the lower surface of the power receiving body 161, and the upper surface of the power receiving body 161 is received by an upper receiving portion 162 provided in the discharge case 34. This upper receiving part 162 is provided integrally with the upper receiving part 59 that receives the left side of the dielectric 33.

(Sixth Embodiment) FIG. 21 shows a sixth embodiment of the discharge device, in which the electrode connecting portion 90 is in a natural state before being wound around the first electrode 31, and the large diameter portion is This is different from the first embodiment in that it is divided into a small diameter portion 141 and a small diameter portion 142. The diameter R3 of the inner peripheral surface of the large diameter portion 141 in the natural state is the same as or larger than the diameter R1 of the first electrode 31, and the diameter R4 of the inner peripheral surface of the small diameter portion 142 is larger than the diameter R1 of the first electrode 31. is also slightly smaller (R4<R1≦R3). By press-fitting the first electrode 31 into the electrode connection part 90, the small diameter part 142 is pressed from inside by the first electrode 31 and expands in diameter, similar to the electrode connection part 90 of the first embodiment. The large-diameter portion 141 is pulled downward by the winding portion 91 to contract in diameter and tightly adhere to the first electrode 31 . The large diameter portion 141 goes around the first electrode 31 approximately once, and the remaining portion of the electrode connecting portion 90 excluding the large diameter portion 141 constitutes the small diameter portion 142 . According to this embodiment as well, the electrode connecting portion 90 is brought into close contact with the first electrode 31 over the entire length in the circumferential direction, and a point contact state is established in which both the electrodes 31 and 90 are in contact at only one or several points in the circumferential direction. This can be more reliably prevented, and the electrode connecting portion 90 can be reliably prevented from coming undone from the first electrode 31.

(Seventh Embodiment) FIG. 22 shows a seventh embodiment of the discharge device, in which the electrode connection portion 90 is wound around the first electrode 31 only once (approximately 360°), and the electrode connection portion 90 is This embodiment differs from the first embodiment in that the tip is welded and fixed to the circumferential surface of the first electrode 31. A welding portion 144 for fixing both the electrodes 31 and 90 is arranged at the 3 o'clock or 9 o'clock position on the circumferential surface of the first electrode 31.

(Eighth Embodiment) FIG. 23 shows an eighth embodiment of the discharge device, which differs from the first embodiment in an electrode support structure 64 that supports both ends of the first electrode 31. Specifically, each of the left and right electrode support structures 64 includes a horizontal holding groove 118 provided in the outer case 37 (discharge case 34). Each holding groove 118 is open on one front and rear side, and the introduction groove 70 extends downward to the lower end of the outer case 37 continuously from the opening. A regulating protrusion 119 for regulating detachment of the first electrode 31 is protruded near the opening of the holding groove 118 .

To attach the first electrode 31 to the outer case 37 , first, the first electrode 31 is slid upward along the introduction groove 70 and moved to the upper end of the introduction groove 70 . Next, the first electrode 31 is slid laterally toward the back of the holding groove 118 to pass over the regulating protrusion 119 . As a result, the first electrode 31 is held in the inner part of the holding groove 118 without being able to move freely. Note that the tunnel-shaped protrusion that constituted the upper support portion 65 in the first embodiment exclusively functions as the first protection portion 81 in this embodiment. When the electrode support structure 64 is configured with the holding groove 118 as in this embodiment, the first electrode 31 can be moved to the discharge case 34 by simply sliding the first electrode 31 sideways to the back of the holding groove 118. Electrode 31 can be fixed.

(Ninth Embodiment) FIG. 24 shows a ninth embodiment of the discharge device, which is different from the first embodiment in the mounting and holding means for holding the discharge section 16 in the mounted state with respect to the base section 15. . Specifically, the attachment holding means is provided in the engagement hole 123 provided in the discharge case 34 (inner case 38) of the discharge part 16 and in the base case 42 of the base part 15, and is engaged with and disengaged from the engagement hole 123 provided in the base case 42 of the base part 15. and an engaging claw 124. The engagement claw 124 is disposed on the side surface of the upper part 43 of the base case 42 and is supported so as to be displaceable between a locked position in which it engages with the engagement hole 123 and an unlocked position in which it disengages from the engagement hole 123. and is biased into the locked position by a lock spring 125. The engaging claw 124 is integrally provided with an operating portion 126 that protrudes from the outer surface of the base case 42. When the operating portion 126 is pushed inward against the biasing force of the lock spring 125, the engaging claw 124 is displaced from the locked position to the unlocked position and disengaged from the engagement hole 123, and the discharge section 16 can be separated from the base section 15.

(Tenth Embodiment) FIG. 25 shows a tenth embodiment of the discharge device, which differs from the first embodiment in that it includes an operating lever 129 for separating the discharge section 16 from the base section 15. The operating lever 129 is supported by the base portion 15 so as to be able to swing vertically around a fulcrum 130 consisting of a horizontal axis, and has an operating portion 131 facing the lower surface of the discharge portion 16 at one end and an operating portion 132 at the other end. is provided. When the operation part 132 is operated to swing downward, a force in the opposite direction, that is, an upward force is applied from the action part 131 to the discharge part 16, and when this force exceeds the attraction force between the magnet 53 and the magnetic body 54. , the discharge section 16 is separated from the base section 15. By using this operating lever 129, it is possible to separate the discharge section 16 from the base section 15 without touching it, so it is possible to ensure that the fingertip does not accidentally touch the first electrode 31 or the dielectric material 33 during separation. It can be prevented.

Further, in this embodiment, the attachment detection section 17 is constituted by a microswitch provided on the base section 15, and the passive pin 133 thereof is arranged so as to face the lower surface of the discharge section 16. In addition, a booster circuit (transformer) 22 is built into the base portion 15. When the discharge section 16 is attached to the base section 15 and the passive pin 133 is pushed in on the lower surface of the discharge section 16, the attachment detection section 17 outputs a signal to the control section 21. In the ON state in which the control unit 21 receives the signal, the control unit 21 determines that the discharge unit 16 is attached to the base unit 15 and supplies voltage to the booster circuit 22 . On the other hand, when the control unit 21 switches to an off state in which it cannot receive a signal from the attachment detection unit 17, it determines that the discharge unit 16 has separated from the base unit 15, and immediately interrupts the supply of voltage to the booster circuit 22. . Thereby, it is possible to reliably prevent an electric shock accident in which the user touches the terminals 85 and 86 to which a high voltage is applied from the booster circuit 22.

(Eleventh Embodiment) FIG. 26 shows an eleventh embodiment of a discharge device, which differs from the tenth embodiment in that a booster circuit (transformer) 22 is disposed on the discharge section 16 side. A power supply section 136 that supplies a driving voltage to the booster circuit 22 is built into the base section 15 . When the discharge section 16 is attached to the base section 15, the tips of a pair of output connectors 137 extending from the power supply section 136 and a 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 section 136 to the booster circuit 22.

The magnet 53 is arranged between the pair of input connectors 138 of the discharge section 16, and the magnetic body 54 is arranged between the pair of output connectors 137 of the base section 15. The magnet 53 and the magnetic body 54 of this embodiment hold the discharge section 16 in the attached state by the adsorption force acting between both 53 and 54, and also hold the output connector 137 and the input connector 138 in the connected (contact) state. . According to this embodiment, even if the discharge section 16 separates 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.

Since the discharge device according to the present invention can be applied to ozonizers and ionizers, it meets Goal 3 (Good health and well-being for all) of the Sustainable Development Goals (SDGs) advocated by the United Nations. can contribute. Furthermore, by incorporating the discharge device into equipment that discharges treated air, such as an air conditioner, humidifier, or air purifier, it can be used to sterilize the discharged air. Alternatively, by installing it inside a refrigerator, a closet, a toilet, etc., it can be used to deodorize and sterilize the space. Furthermore, the discharge device can also be applied to an ozone water generation device that dissolves ozone in water. The generated ozonated water can be used for washing machines, flush toilets, food and tableware cleaning, medical equipment cleaning, etc.

6 discharge device 15 base part 16 discharge part 31 first electrode 32 second electrode 33 dielectric 34 discharge case 42 base case 43 upper part 44 lower part 46 mounting recess 51 upper facing wall 52 lower facing wall 58 cushion material 59 dielectric material Upper receiving part (inner receiving part)
64 Electrode support structure 65 Upper support part 66 Lower support part 71 Electrode unit 85 First terminal 86 Second terminal 87 First current carrying body 88 Second current carrying body 90 Electrode connection part 91 Sealing part 92 Terminal connection part 93 Tension part 104 Storage Hole 105 Upper storage boss 106 Lower storage boss 107 Insertion hole 109 Guide surface 118 Holding groove 145 Bottom cover 147 Current-carrying pin 148 Current-carrying spring 153 Engagement hole 154 Engagement protrusion 157 Upper spring 161 Power receiving body 162 Upper receiving part of power receiving body 164 Upper receiving part of first electrode

Claims (8)

A discharge device comprising a first electrode (31) and a planar second electrode (32) paired with the first electrode (31),
It has a second current carrying body (88) that is responsible for energizing the second electrode (32),
A discharge device characterized in that a second current-carrying body (88) elastically adheres to a power-receiving body (161) having the same potential as the second electrode (32). A plate-shaped dielectric (33) is arranged between the first electrode (31) and the second electrode (32),
The discharge device according to claim 1, wherein the dielectric (33) is in close contact with one surface of the second electrode (32), and the power receiver (161) is connected to the other surface of the second electrode (32). The discharge device according to claim 2, wherein the second electrode (32) is formed thinner than the dielectric (33). It is equipped with a discharge case (34) that accommodates both electrodes (31, 32) and a power receiving body (161),
The discharge case (34) is provided with an upper receiving part (162) that receives one surface of the power receiving body (161), and the second current carrying body (88) is in close contact with the other surface of the power receiving body (161). The discharge device according to any one of claims 1 to 3. The first electrode (31) is formed into a rod shape,
The first electrode (31) has a first current carrying body (87) that is responsible for supplying electricity to the first electrode (31),
The discharge device according to claim 1, wherein an electrode connection part (90) that is wound around the first electrode (31) one or more times in the circumferential direction is provided at one end of the first current-carrying body (87). The discharge device according to claim 5, further comprising a tightening portion (91) that urges the electrode connection portion (90) of the first current-carrying body (87) in a direction away from the first electrode (31). The discharge case (34) is provided with a pair of electrode protection structures (64) that protect both ends of the first electrode (31),
The discharge device according to claim 5 or 6, wherein the electrode protection structure (64) protrudes from the discharge case (34) more than the first electrode (31). Claim 1, wherein the upper discharge part (16) including the second electrode (32) and the power receiving body (161) is detachable from the lower base part (15) including the second current carrying body (88). The discharge device described in .