JP3061585U - Ozone / ion generator - Google Patents

Abstract

(57) [Summary] [PROBLEMS] To efficiently and safely generate ozone and negative ions. SOLUTION: A cylindrical ground electrode 14 is provided around the outer periphery of a cylindrical dielectric 12. An entrance cap 18 is adhesively fixed to the entrance side of the dielectric 12. In the inlet cap 18,
The plurality of discharge electrodes 24 are positioned and fixed via the screw 22, the spacer 26, and the nut 28. The plurality of discharge electrodes 24 are spaced apart from each other by a predetermined distance in the axial direction of the dielectric 12, and are disposed with a predetermined gap between the outer periphery thereof and the inner peripheral surface of the dielectric 12. Is set to face the inside corresponding to the ground electrode 14. A wiring electrode 30 connected to an AC power supply and an oxygen supply source is bonded and fixed to the inlet cap 18. On the exit side of the dielectric 12,
Outlet cap 4 for discharging ozone and negative ions
6 is adhesively fixed.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to an ozone / ion generator capable of generating ozone and negative ions simultaneously.

[0002]

[Prior art]

 As a means used for sterilization, deodorization, decolorization and the like of foods, ozone, which is a trimer of oxygen atoms, which has a strong oxidizing effect and has no residual property, has attracted attention. Negative ions are known as a means for suppressing the growth of microorganisms without discoloring or altering food. The above-mentioned ozone can improve the bactericidal activity by increasing its concentration, but on the other hand, it may discolor and degrade food due to its oxidizing action. Recent studies have shown that high bactericidal activity can be obtained.

[0003] As a device for generating ozone, a device in which a tungsten electrode is embedded in a ceramic plate having a predetermined thickness is known. In this device, a predetermined voltage is applied to the electrode so that an outer peripheral edge of the electrode is formed. Ozone is generated by the discharge from. However, in this device, since the electrodes are embedded in the ceramic plate, no negative ions are emitted from the electrodes, and when negative ions are used together, a separate device for generating negative ions is required.

On the other hand, a discharge electrode is disposed inside a cylindrical induction electrode at a predetermined interval, and a predetermined DC voltage is applied between the induction electrode and the discharge electrode. An apparatus has been proposed that simultaneously generates ozone and negative ions by discharging from a discharge electrode.

[0005]

[Problems to be solved by the invention]

 Since the discharge electrode of the above-described device is configured by embedding a pointed screw in the outer periphery of a saw-tooth shape or a cylindrical body, the efficiency of generating negative ions by discharge is low, and a sufficient effect can be obtained when used in combination with ozone. Therefore, it is necessary to apply a high voltage, and there is a problem that power consumption is increased and running cost is increased.

[0006] In addition, in the above device, the induction electrode and the discharge electrode are directly opposed to each other. Therefore, if an abnormally high voltage is applied during operation, a short circuit between the two electrodes may occur and safety may be reduced. Inferior in point. In addition, it is necessary to turn off the power once in order to recover from short circuit accidents and restore operation, which points out the disadvantage of reduced operating efficiency. Furthermore, since a DC power supply was used as a power supply, a converter was required when using an AC power supply for general household use, and there was a drawback that the number of parts was increased and the mechanism was complicated.

[0007]

[Purpose of the invention]

 The present invention has been proposed in view of the above-mentioned problems inherent in the conventional technology, and has been proposed to appropriately solve the problems. The ozone has a simple structure capable of efficiently and safely generating ozone and negative ions. -To provide an ion generator.

[0008]

[Means for Solving the Problems]

 In order to overcome the above-mentioned problems and achieve the intended purpose, an ozone ion generator according to the present invention is provided around a cylindrical dielectric body and has a cylindrical ground electrode set at a predetermined length. And at a position facing the inside corresponding to the ground electrode inside the dielectric with a predetermined gap in the axial direction of the dielectric and a predetermined gap between the dielectric and the inner peripheral surface of the dielectric. A plurality of disk-shaped discharge electrodes having a plurality of angular teeth on the outer periphery thereof; an AC power supply having a high voltage side connected to the discharge electrodes; and an oxygen supply source for supplying oxygen to the inside of the dielectric. By supplying oxygen from the oxygen supply source so as to pass through the inside of the dielectric, and applying an AC voltage of a predetermined pressure from the AC power supply to the discharge electrodes, ozone is discharged by discharge of each discharge electrode. And negative ions It is characterized.

[0009]

[Embodiment of the invention]

 Next, the ozone / ion generator according to the present invention will be described below with reference to preferred embodiments. FIG. 1 is a vertical sectional side view showing an ozone / ion generator according to an embodiment. The ozone / ion generator 10 has a cylindrical dielectric 12 formed of an insulating material such as ceramics. A cylindrical ground electrode 14 sized to a predetermined length shorter than the axial dimension of the dielectric 12 is provided around. The entire outer periphery of the dielectric 12 is covered with an insulating protective film 16 made of silicon or the like so as to cover the ground electrode 14. However, since safety is ensured by the dielectric 12, the protective film 16 is formed. 16 can be omitted. The ground electrode 14 is formed of, for example, high-purity nickel.

On one axial side of the dielectric 12 (on the left side in FIG. 1), a cylindrical inlet cap 18 having a bottom with one end set to a diameter that can be inserted into the dielectric 12 is provided. A flange portion 18a formed on the open end side opposite to the bottomed end portion is fitted so as to be in contact with the entrance end of the dielectric 12, and is fixed via an epoxy adhesive 20. A mounting through hole 18c is formed in the bottomed portion 18b of the inlet cap 18 along the center of its axis, and a plurality of the through holes are circumferentially arranged at predetermined intervals so as to surround the mounting through hole 18c. In the embodiment, the number is three, but the number is not limited to this number) (see FIG. 2). A screw 22 is inserted into the mounting through hole 18c from a hole 18e side opening at the open end side of the inlet cap 18, and a screw extending outward from the bottomed portion 18b of the screw 22 is provided. A plurality of discharge electrodes 24 are arranged on the shaft 22a at regular intervals via a spacer 26. A nut 28 is screwed onto the open end of the threaded shaft portion 22a. By tightening the nut 28, the screw 22 and the plurality of discharge electrodes 24 are positioned and fixed to the inlet cap 18. That is, in this state, the plurality of discharge electrodes 24 are spaced apart from each other in the axial direction of the dielectric 12 by a predetermined distance, and are arranged with a predetermined gap between the outer periphery and the inner peripheral surface of the dielectric 12. As shown in FIG. 1, all the discharge electrodes 24 are set so as to face the inside corresponding to the ground electrode 14 provided around the outer periphery of the dielectric 12. The inlet cap 18 is made of hard vinyl chloride, and the screw 22, spacer 26 and nut 28 are all made of a conductive material such as stainless steel.

As shown in FIGS. 1 and 2, the discharge electrode 24 is formed by forming a plurality of angular teeth 24 a on the outer periphery of a thin disk made of a conductive material such as stainless steel. The gap between the outer periphery of the dielectric and the inner peripheral surface of the dielectric 12 is set to a necessary minimum. In other words, the negative ions have the property of being efficiently released from the sharp portions. In the discharge electrode 24 of the embodiment, the negative ions can be efficiently emitted from a large number of corners by forming each tooth portion 24a into an angular shape. Released. If the gap between the discharge electrode 24 and the ground electrode 14 is large, a high voltage is required to release negative ions. In the embodiment, the gap between the discharge electrode 24 and the ground electrode 14 (dielectric 12) is increased. Since the minimum is required, negative ions can be efficiently emitted even at a low voltage (low voltage in a range where discharge can be performed).

A wiring electrode 30 made of a conductive material such as stainless steel is fixed to the entrance cap 18 via an adhesive 32. As shown in FIG. 1, the wiring electrode 30 includes a cylindrical main body 34 having a supply through hole 34a formed along the center of the axis, and an inlet cap 18 formed at one end of the cylindrical main body 34. A large-diameter fitting portion 34b set to a diameter that can be inserted into the hole 18e, a nipple portion 34c formed on the other end side of the cylindrical main body 34, a fitting portion 34b and the nipple portion 34c. And a flange 36 formed on the outer periphery of the cylindrical main body 34 between them. The wiring electrode 30 is fixed via a silicon-based adhesive 32 in a state where the fitting portion 34b is fitted into the hole 18e of the entrance cap 18. The open end of the fitting portion 34b is in contact with the head 22b of the screw 22, so that the wiring electrode 30 and each of the discharge electrodes 24 are in a conductive state.

As shown in FIG. 4, an electric wire 40 extending from the high voltage side of an AC power supply 38 is connected to the outer periphery of the flange 36 of the wiring electrode 30, and the AC power supply 38 is connected to the ground electrode 14. An electric wire 42 commonly connected to the ground side is connected. Then, the AC power supply 38 is excited to apply a predetermined AC voltage (for example, 6 kV to 10 kV) required for discharge to the wiring electrode 30, so that the discharge is generated from each of the discharge electrodes 24. .

At the open end of the fitting portion 34b in the wiring electrode 30, as shown in FIG. 3, a plurality (four in the embodiment, four in the embodiment) extending radially in communication with the supply through hole 34a. The number of grooves 34d is not limited to this number. Further, an oxygen supply source 44 is connected to the nipple portion 34c (see FIG. 4), and dried oxygen supplied from the supply source 44 is supplied to the supply through hole 34a and the groove portion 34d of the wiring electrode 30 and the inlet cap. The discharge electrode group is configured to be supplied into the storage space S of the dielectric 12 in which the discharge electrode group is stored through the inlet side ventilation hole 18d of the pump 18. Then, the discharge from each discharge electrode 24 generates ozone, and the negative ions released from each discharge electrode 24 move to the other axial exit side of the dielectric 12 due to the flow of oxygen. . As the oxygen supply source 44, an oxygen cylinder or a blower fan equipped with a dehumidifier is preferably used. However, when only oxygen is supplied from the oxygen cylinder, it is necessary to increase the generation rate of ozone. Can be.

An outlet cap 46 made of hard vinyl chloride for discharging ozone and negative ions generated in the storage space S is disposed and fixed on the outlet side (the right side in FIG. 1) of the dielectric 12. I have. The outlet cap 46 includes a cylindrical main body 48 in which a discharge hole 48a is formed along the center of the axis, and a flange portion 48b formed substantially at the center of the cylindrical main body 44 in the axial direction (longitudinal direction). The cylindrical main body 48 which is basically formed from the flange portion 48b and extends in one axial direction from the flange portion 48b is set to have a diameter capable of being inserted into the dielectric 12, and the large diameter portion 48c is formed by the flange portion 48b. It is fixed via an epoxy-based adhesive 50 in a state of being fitted to a position where it comes into contact with the outlet end.

[0016]

Operation of the embodiment

 Next, the operation of the ozone / ion generator according to the above configuration will be described. When dry oxygen is supplied from the oxygen supply source 44 to the supply through hole 34 a of the wiring electrode 30, the oxygen is supplied from the supply through hole 34 a to the groove 34 d and the inlet side vent hole of the inlet cap 18. The air is discharged to the storage space S through the outlet 18d, and is discharged from the space S to the outside through the discharge hole 48a of the outlet cap 46. In this state, when the AC power supply 38 is excited to apply a predetermined AC voltage to the wiring electrode 30, the outer peripheral edge of each discharge electrode 24 that is in contact with the wiring electrode 30 via the screw 22. The discharge generates ozone, and the ozone is discharged to the outside through the discharge hole 48a of the outlet cap 46. The negative ions emitted from the corners of each tooth 24a of each discharge electrode 24 are discharged to the outside together with ozone through the discharge hole 48a of the outlet cap 46 by the flow of oxygen.

In the ozone / ion generator 10 of the embodiment, a plurality of angular teeth 24 a are formed on the outer periphery of each discharge electrode 24, and a gap between the discharge electrode 24 and the ground electrode 14 (dielectric 12) is formed. Since it is set to the minimum necessary, negative ions can be generated efficiently even at a low AC voltage. Therefore, power consumption is reduced and running costs can be reduced. Further, since the ozone / ion generator 10 of the embodiment can efficiently generate negative ions, when the ozone and the negative ions released from the generator 10 are used for sterilizing foods, the ozone concentration is reduced. Can be set low, and a good bactericidal action is exhibited without discoloring or altering the food.

Further, in the ozone / ion generator 10 of the embodiment, since the entire discharge electrode group is covered with the dielectric 12, even if the voltage rises abnormally during operation, each discharge electrode 24 is connected to the ground electrode. There is no short circuit accident with the pole 14. In other words, the ozone / ion generator 10 can be operated safely, and there is no need to turn off the power to deal with a short circuit accident, so that the operation efficiency can be improved.

[0019]

[About another embodiment]

 In the above-mentioned ozone / ion generator 10, apart from the case where dried oxygen is used, when ozone is generated using air containing moisture (moisture), the ozone is generated by nitrogen contained in the moisture. Nitrogen oxides are generated, albeit slightly, which may adversely affect foods and the like. Therefore, it is recommended that the ozone discharged from the ozone / ion generator 10 be passed through water once to remove harmful components and extract only ozone.

That is, as shown in FIG. 5, the open end of the tube 52 connected to the outlet side of the outlet cap 46 in the ozone ion generator 10 is placed inside a water tank 54 in which a predetermined amount of water is stored. Let it soak. Further, in the ozone / ion generator 10, a supply source 56 of oxygen or air is connected to the nipple portion 34c of the wiring electrode 30. In the ozone / ion generator 10 configured as described above, air containing moisture is supplied from the supply source 56, and even if nitrogen oxides are generated together with ozone, the nitrogen oxides are generated in the water stored in the water tank 54. By passing through, nitrogen oxides dissolve in water and only ozone is released. When ozone is passed through water, a part of the ozone is also dissolved in water, and the concentration of ozone released from the water tank 54 is reduced. However, by using ozone and negative ions together, the ability to sterilize, deodorize, decolorize, etc. Does not decrease.

[0021]

[About changes]

 FIG. 6 shows a modified example of the ozone / ion generator. Since the basic configuration is the same as that of the embodiment described with reference to FIG. 1, only different portions will be described. In the ozone ion generator 57 shown in FIG. 6, a wiring electrode 58 having a shape shown in the figure is disposed and fixed on the entrance side of the dielectric 12. The wiring electrode 58 is formed in a cylindrical shape with one end having a diameter set so that it can be inserted into the dielectric 12, and a flange 58 b is formed on the open end opposite to the bottomed portion 58 a. You. The wiring electrode 58 is fixed via the adhesive 60 in a state of being inserted into the dielectric 12 until the flange 58b comes into contact with the entrance end of the dielectric 12. An electric wire 40 derived from the high voltage side of the AC power supply 38 is connected to the outer periphery of the flange 58b.

A mounting through hole 58c is formed in the bottomed portion 58a of the wiring electrode 58 along the axis of the bottom portion 58a, and at predetermined intervals in the circumferential direction so as to surround the mounting through hole 58c. , A plurality of inlet side vent holes 58d are formed. The plurality of discharge electrodes 24 are connected to the wiring electrodes 58 via the screws 22, the spacers 26, and the nuts 28 inserted in the mounting through holes 58 c, similarly to the above-described mounting structure for the inlet cap 18. Positioned and fixed. That is, in the modified example, the discharge electrode 24 is directly disposed and fixed to the wiring electrode 58.

An inlet nipple 62 is provided in a hole 58 e opened on the open end side of the wiring electrode 58. The inlet nipple 62 is basically composed of a cylindrical main body 64 having a supply through hole 64a formed along the center of the axis, and a flange 64b formed on the outer periphery of the cylindrical main body 64 at a predetermined axial position. The cylindrical main body 64 extending in one axial direction from the flange 64b is set to have a diameter that can be inserted into the hole 58e, and the large diameter portion 64c is formed by the flange 64b by the wiring electrode 58b. Is fixed via an adhesive 66 in a state of being inserted to a position where it comes into contact with the open end. The oxygen supply source 44 is connected to a small-diameter nipple portion 64d extending outward from the flange portion 64b (to the side away from the wiring electrode 58).

In the ozone ion generator 57 according to the modification shown in FIG. 6, when dry oxygen is supplied from the oxygen supply source 44 to the supply through-hole 64 a of the inlet nipple 64, It is discharged from the through hole 64a through the inlet side ventilation hole 58d of the wiring electrode 58 into the storage space S, and is discharged from the space S through the discharge through hole 48a of the outlet cap 46 to the outside. In this state, when the AC power supply 38 is excited to apply a predetermined AC voltage to the wiring electrode 58, the outer peripheral edge of each discharge electrode 24 that is in contact with the wiring electrode 30 via the screw 22. Ozone is generated by the discharge of the ozone, and the ozone is discharged to the outside through the discharge hole 48 a of the outlet cap 46. The negative ions emitted from the corners of each tooth 24a of each discharge electrode 24 are discharged to the outside together with ozone through the discharge hole 48a of the outlet cap 46 by the flow of oxygen.

In the ozone / ion generator 57 according to the modified example, since the shape and arrangement position of each discharge electrode 24 are the same as those in the above-described embodiment, the same effects are obtained. Alternatively, ozone and negative ions discharged from the ozone / ion generator 57 may be passed through water as in another embodiment shown in FIG.

[0026]

[Effect of the invention]

 As described above, according to the ozone / ion generator according to the present invention, a plurality of angular teeth are formed on the outer periphery of each discharge electrode, so that even at a low AC voltage, negative ions can be efficiently converted. Power consumption can be reduced and running costs can be reduced. In addition, since AC voltage is applied while the entire discharge electrode group is covered with a dielectric, even if the voltage rises abnormally during operation, a short-circuit accident may occur between each discharge electrode and the ground electrode. Can be prevented. In other words, the ozone / ion generator can be operated safely, and there is no need to turn off the power to deal with a short circuit accident, so that the operation efficiency can be improved. Further, by using the AC voltage, it is possible to receive the voltage from a general household AC power supply with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a vertical sectional front view showing an ozone ion generator according to a preferred embodiment of the present invention.

FIG. 2 is a vertical sectional side view of the ozone / ion generator according to the embodiment.

FIG. 3 is a side view showing a bottom surface of the wiring electrode according to the embodiment on the fitting portion side.

FIG. 4 is a schematic diagram showing the entire configuration of the ozone / ion generator according to the embodiment.

FIG. 5 is a schematic diagram showing an entire configuration of an ozone / ion generator according to another embodiment.

FIG. 6 is a vertical sectional front view showing an ozone / ion generator according to a modification.

[Explanation of symbols]

 12 Dielectric 14 Ground electrode 24 Discharge electrode 24a Tooth 38 AC power supply 44 Oxygen supply source

Claims (1)

[Utility model registration claims] 1. A cylindrical ground electrode (14) provided around an outer periphery of a cylindrical dielectric (12) and having a predetermined length, and a ground electrode (14) inside the dielectric (12). At a position facing the corresponding inner side, the dielectric (12) is disposed at a predetermined interval in the axial direction and at a predetermined gap between the dielectric (12) and the inner peripheral surface, and a plurality of A plurality of disc-shaped discharge electrodes (24) formed with angular teeth (24a), an AC power supply (38) having a high voltage side connected to the discharge electrodes (24), and an inside of the dielectric (12). An oxygen supply source (44) for supplying oxygen, while supplying oxygen from the oxygen supply source (44) so as to pass through the inside of the dielectric (12), and a predetermined value from the AC power supply (38). Ozone and negative ions are generated by applying a pressure AC voltage to the discharge electrodes (24) to discharge each discharge electrode (24). Generator.