JP5201754B1 - Ion generator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an ion generator capable of generating a high concentration of ions while keeping a charge amount on an inner wall surface in a good state without connecting to the earth for each duct forming a flow path. And
SOLUTION: A negative ion generator 50 for generating negative ions, a positive ion generator 55 for generating positive ions, and a first flow path 11 of a gaseous medium containing ions generated by the negative ion generator 50 are formed. The first duct 10, the second duct 20 that forms the second flow path 21 of the gaseous medium containing positive ions, the first conductive layer 30 that forms the inner wall surface of the first duct 10, and the second duct The first conductive layer 30 and the second conductive layer 35 are electrically connected via a variable resistor 40. The second conductive layer 35 forms an inner wall surface.
[Selection] Figure 1

Description

  The present invention relates to an ion generator that generates positive ions and negative ions.

  In recent years, ion generators have been used to purify, sterilize, or deodorize indoor air. Many of such ion generators are roughly classified into two types: ion generators that generate only negative ions, and ion generators that generate positive ions and negative ions.

  The former ion generator can produce a relaxing effect, and the latter ion generator can produce effects such as decomposition of mold or virus floating in the air, removal of odors, dust collection, etc. Has been.

  Conventional ion generators that generate positive ions and negative ions include an ion generator that generates positive ions or negative ions in the middle of each flow path formed to release positive ions or negative ions. It is known that the positive ions and negative ions generated together with the air sent from the blower are discharged from the discharge port of each flow channel to the external space. Here, the ion generator of the ion generator generates positive ions or negative ions by applying a high-voltage discharge voltage between the discharge electrodes.

  In addition, some of the generated ions collide with the inner wall surface of the duct forming the flow path, so that the inner wall surface is charged to the same polarity as the polarity of the ions, but this inner wall surface is charged. The amount of charge gradually increases with time. When the inner wall surface is charged with the same polarity, the generated ions receive a repulsive force from the inner wall surface, and the repulsive force gradually increases as the amount of charge on the inner wall surface increases. Thereby, the chance that the ions collide with the inner wall surface decreases, and as a result, the amount of ions in the flow path space increases.

  However, if the amount of ions in the flow path space increases too much, ions in the flow path space cannot move in the direction of the discharge port or move in the direction opposite to the discharge port, resulting in a high flow rate. There was a problem that ions of a concentration were not released.

  An attempt to release high-concentration ions while keeping the charge amount on the inner wall surface in a good state is disclosed in Patent Document 1 in order to solve such a problem of the prior art.

  Patent Document 1 discloses an air conditioning duct device shown in FIG. The air conditioning duct device is provided with a variable resistor 141 so that electric charges can be stored in the air transport path 131 of the conductor. Here, one end of the variable resistor 141 is electrically connected to the air conveyance path 131, and the other end is electrically connected to the ground 180.

JP 2002-277010 A

  In the air-conditioning duct apparatus described in Patent Document 1, when the variable resistor is connected to the casing of the apparatus, the entire casing is charged and high-concentration ions are not sufficiently released. For this reason, it is necessary to use the ground wire connected to the variable resistor by connecting it to a ground wire connecting terminal of an AC outlet, for example.

  However, since the connection of the ground wire is generally left to the user, it may be used without being grounded. In such a case, high-concentration ions are not sufficiently released.

  The present invention has been made in view of such a problem, and an object of the present invention is to generate high-concentration ions while keeping the charge amount on the inner wall surface in a good state without ground connection. The object is to provide a possible ion generator.

The ion generator of the present invention forms a first ion generator for generating ions, a second ion generator for generating ions, and a flow path for a gaseous medium containing the ions generated by the first ion generator. A first duct, a second duct forming a flow path of a gas medium containing ions generated by the second ion generator, a first conductive layer forming an inner wall surface of the first duct, and a second duct A second conductive layer that forms an inner wall surface, and the first ion generator generates ions of a different polarity from the ions generated by the second ion generator, and the first conductive layer and the second conductive layer are generated . The layers are characterized in that they are electrically connected via resistors.

  Preferably, the first conductive layer is connected to one electrode of the DC power supply.

  In the ion generator of the present invention, even if the ducts forming the flow paths are not connected to the ground, the charge amount on the inner wall surface can be kept in a good state and high concentration ions can be generated.

It is a figure which shows schematic structure of the ion generator 1 which concerns on 1st Embodiment. It is a figure which shows schematic structure of the ion generator 2 which concerns on 2nd Embodiment. It is a block diagram of the conventional air conditioning duct apparatus.

[First Embodiment]
FIG. 1 shows a schematic configuration of an ion generator 1 according to a first embodiment, and an embodiment of the present invention will be described with reference to this drawing.

  The ion generator 1 includes a first duct 10, a negative ion generation unit 15, a second duct 20, a positive ion generation unit 25, and a blower unit 60.

  Here, the duct 10 and the duct 20 show an embodiment of a duct in which a flow path for discharging a blown or sucked gaseous medium to the outside is formed.

  In addition, the flow path is formed by a single member or a combination of a plurality of members made of a dielectric material so that the cylindrical hollow portion becomes a flow path for the gas medium. Here, the shape of the flow channel is a shape having a uniform cross-sectional dimension over the entire flow channel and linear in the flow channel direction, but is not limited to this shape.

  The air blower unit 60 shows one Embodiment for moving a gaseous medium from the upstream of a flow path to downstream, and discharging | emitting outside. Accordingly, the blower unit 60 is disposed on the upstream side of the flow path, and moves the gaseous medium from upstream to downstream by blowing air. Here, the gas medium may be moved from the upstream side to the downstream side by being arranged and sucked on the downstream side of the flow path.

  In FIG. 1, a duct 10 forms a first flow path 11 for discharging a blown gas medium to the outside together with generated ions, and a duct 20 generates ions that generate a blown gas medium. At the same time, a second flow path 21 for discharging to the outside is formed.

  The first flow path 11 is formed by the connection of the first duct 10 and the negative ion generation unit 15, and the second flow path 21 is formed by the connection of the second duct 20 and the positive ion generation unit 25.

  The blower unit 60 is provided with a blower 61 that blows a gaseous medium such as air taken from the outside of the apparatus to the inlet 12 of the first duct 10 and the inlet 22 of the second duct 20.

  Here, the negative ion generation unit 15 and the positive ion generation unit 25 show an embodiment for generating ions in the flow path until the blown or sucked gaseous medium is released to the outside. In connection with the arrangement of the ion generator for generating ions, an embodiment is conceivable in which an ion generator is disposed on the wall surface of the duct forming the flow path, and ions are generated in the flow path from the wall surface direction. It is not limited to the embodiment.

  In FIG. 1, the negative ion generation unit 15 and the positive ion generation unit 25 are connected to a blower unit 60. The negative ion generation unit 15 forms a first inlet 12 for feeding a gaseous medium blown from the blower unit 60 and a first flow path 11 from the first inlet 12 to the first duct 10. The second ion generation unit 25 forms a second inlet 22 for feeding a gaseous medium blown from the blower unit 60 and a second flow path 21 from the second inlet 12 to the second duct 20. .

  The negative ion generation unit 15 has a negative ion generator 50 that generates negative ions in the first flow path 11, and the positive ion generation unit 25 has a positive ion generator that generates positive ions in the second flow path 21. 55 are arranged.

  Further, in the first duct 10 and the second duct 20, a conductive layer is formed along the inner wall surface of the flow path in order to collect charges charged on the inner wall surface of the flow path.

  In FIG. 1, the first duct 10 forms a first conductive layer 30 that forms the inner wall surface of the first flow path 11, and the second duct 20 forms a second conductive layer that forms the inner wall surface of the second flow path 21. 35 are formed. Here, the inner wall surface of the first channel 11 or the second channel 21 is formed of a dielectric layer, and the first conductive layer 30 or the second conductivity is formed along the first channel 11 or the second channel 21. It does not matter as an aspect in which the layer 35 is formed.

  The first conductive layer 30 and the second conductive layer 35 are electrically connected via a variable resistor 40 adjusted to a high resistance. Here, in the present embodiment, an ion generator that connects the variable resistor 40 is illustrated, but a fixed resistor may be employed. However, by using a variable resistor, the resistance value of the variable resistor can be appropriately adjusted according to the ambient environment such as temperature and humidity, or the operating conditions of the device such as the amount of ion generation and air flow. Become.

  As described above, in the ion generator 1 of the present invention, the first conductive layer 30 and the second conductive layer 35 charged to different polarity are electrically connected via the high-resistance variable resistor 40. By connecting, the electric charge accumulated on the inner wall surface of the first flow path 11 in which the first conductive layer 30 is formed is recovered. On the other hand, by electrically connecting the second conductive layer 35 and the first conductive layer 30 charged to a different polarity via the high-resistance variable resistor 40, the second conductive layer The electric charge accumulated on the inner wall surface of the second flow path 21 in which 35 is formed is collected.

  Therefore, the amount of charge on the inner wall surface of the first flow path 11 or the inner wall surface of the second flow path 21 is good without electrically connecting the first conductive layer 30 or the second conductive layer 35 to the ground. A high concentration of ions can be generated.

[Second Embodiment]
FIG. 2 shows a schematic configuration of an ion generator 2 according to the second embodiment, and an embodiment of the present invention will be described with reference to this drawing. Note that the same reference numerals are assigned to the same components as those described above. Therefore, description of these components is omitted.

  Further, the ion generator 2 is different from the ion generator 1 described above only in that it includes a DC power supply 45.

  As shown in FIG. 2, the first conductive layer 30 is connected to one electrode of the DC power supply 45. Here, the other electrode of the DC power supply 45 is not connected to the first conductive layer 30, for example, is grounded. In the ion generator 2, the DC power supply 45 is connected to the first conductive layer 30. However, the DC power supply 45 may be connected to the second conductive layer 35.

  Thus, in the ion generator 2 of the present invention, since the direct current device 45 is connected to the first conductive layer 30, the amount of charge on the inner wall surface of the first flow path 11 is adjusted by the direct current power supply 45. can do. Then, the amount of charge on the inner wall surface of the second flow path 21 can be adjusted by the variable resistor 40.

  From this, the charge amount of the inner wall surface can be adjusted to a good state for each of the first channel 11 or the second channel 21.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

DESCRIPTION OF SYMBOLS 1 Ion generator 10 1st duct 11 1st flow path 12 1st inlet 15 Negative ion generation unit 20 2nd duct 21 2nd flow path 22 2nd inlet 25 Positive ion generation unit 30 1st electroconductive layer 35 1st Two conductive layers 40 Variable resistor 45 DC power supply 50 Negative ion generator 55 Positive ion generator 60 Blower unit 61 Blower

Claims (2)

A first ion generator for generating ions;
A second ion generator for generating ions;
A first duct that forms a flow path for a gaseous medium containing ions generated by the first ion generator;
A second duct that forms a flow path of a gas medium containing ions generated by the second ion generator;
A first conductive layer forming an inner wall surface of the first duct;
A second conductive layer forming an inner wall surface of the second duct,
The first ion generator generates ions different from the ions generated by the second ion generator,
The ion generator is characterized in that the first conductive layer and the second conductive layer are electrically connected through a resistor.   The ion generator according to claim 1, wherein the first conductive layer is connected to one electrode of a DC power supply.