JP5261558B2 - Ion generator - Google Patents

Description

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

  In recent years, ion generators have been used to purify, sterilize, or deodorize indoor air.

  For example, in a known ion generator, an ion generator is disposed in the middle of the formed flow path, and ions generated by the ion generator are discharged from the discharge port to the external space. The ion generator generates positive ions or negative ions by applying a high discharge voltage between the discharge electrodes.

  Here, when the charge amount on the inner wall surface of the duct forming the flow path cannot be maintained in a good state, a phenomenon occurs in which it becomes difficult to release a high concentration of ions from the ion generator, and the phenomenon will be described below. To do.

  First, some of the generated ions collide with the inner wall surface of the duct, so that the inner wall surface is charged to the same polarity as the polarity of the ions, and the amount of charge that charges the inner wall surface gradually increases over time. It will increase. As the amount of charge on the inner wall surface increases, a force repelling from the inner wall surface charged to the same polarity is applied to the generated ions. As a result, the chance of ions colliding 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 will not easily move in the direction of the discharge port, and in some cases, a phenomenon of moving in the direction opposite to the discharge port will occur. High concentration of ions may not be released. Therefore, Patent Document 1 discloses an attempt to keep the charge amount on the inner wall surface in a good state and release a high concentration of ions.

  Patent Document 1 describes 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 conveyance 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.

  Further, in the air conditioning duct device, by adjusting the resistance value of the variable resistor 141, negative ions generated by the negative ion generator collide with the inner wall surface of the air transport path 131 of the conductor, and enter the air transport path 131. The charge can be stored until the negative charge to be applied reaches a certain charge amount. As a result, it is possible to prevent the negatively charged floating microorganisms from adhering to the air conveyance path 131 of the conductor.

  Further, by arranging a plurality of conductor air conveyance paths 131 and variable resistors 141 apart from each other, high concentration negative ions can be efficiently supplied to the end portion of the air conveyance path 110. Furthermore, by adjusting the resistance value to an appropriate value, the amount of electric charge stored in the air transport path 131 of the conductor can be adjusted, so that the occurrence of trouble due to static electricity can be prevented beforehand.

JP 2002-277010 A

  In the air-conditioning duct apparatus described in Patent Document 1, the conductor member is connected to a high-resistance resistor and grounded, and the conductor member is disposed on the inner wall surface of the duct that forms the flow path. The charge in the region where the conductor member is disposed is collected.

  Therefore, the amount of charge per unit time for collecting charges from the inner wall surface of the duct (hereinafter referred to as “charge collecting ability”) is the same in the region where the conductor member is disposed.

  Here, the charge recovery capability is mainly determined by the conditions related to the duct configuration such as the duct member or material and the resistance value of the resistor connected to the conductor member. In addition, when the conditions related to the duct configuration are the same, the charge recovery capability is lower when connected to a higher resistance resistor.

  On the other hand, the amount of charge per unit time for charging the inner wall surface of the duct (hereinafter referred to as “charge supply capability”) is high near the position where the ion generator is disposed, but near the discharge port where ions are emitted. It tends to be lower. Here, the charge supply capability varies depending on factors such as the amount of air that the blower blows air, the ion generation state of the ion generator, temperature, or humidity.

  For this reason, when the total length of the flow path from the position where the ion generator is disposed to the discharge port is increased, it becomes difficult to maintain a balance between the charge recovery capability and the supply capability in the entire flow path. It was.

  The present invention has been made in view of such problems, and an object of the present invention is to provide an ion generator that emits high-concentration ions while maintaining a good balance between charge recovery capability and supply capability. There is to do.

An ion generator according to the present invention includes a duct that forms a flow path of a gas medium, an ion generator that generates ions in the flow path, and a plurality of conductive members that are spaced apart along the flow path and disposed in the duct. And a plurality of resistors that are individually connected and electrically grounded for each of the plurality of conductive members, and the resistance value of the resistor is measured on the flow path between the ion generator and the conductive member. According to the distance, the higher the distance on the flow path, the higher the value .

  More preferably, it has a plurality of pieces of resistance value information according to the arrangement position of the conductive member, and the resistance value is set by selecting one piece of resistance value information from the plurality of pieces of resistance value information.

  More preferably, each of the plurality of resistance value information is stored in association with operation information used when the ion generator is operated.

  More preferably, the operation information includes information corresponding to the amount of movement of the gas medium in the duct.

  More preferably, the operation information includes information corresponding to control information for controlling the ion generator.

  In the ion generator of the present invention, the balance between the charge recovery capability and the supply capability can be maintained in a good state, and a high concentration of ions can be released.

It is a schematic structure figure of ion generator 1 concerning a 1st embodiment. It is a figure for demonstrating the data structure of the operation information of the ion generator. 5 is a flowchart showing a processing procedure of an ion generation controller 81. It is a schematic block diagram of the ion generator 2 which concerns on 2nd Embodiment. It is a figure for demonstrating the data structure of the operation information of the ion generator. 5 is a flowchart showing a processing procedure of an ion generation controller 91. It is a block diagram of the conventional air conditioning duct apparatus.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following description of the processing contents, “step” is represented by “S”, and each processing is distinguished by a number.

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

  The ion generator 1 includes a duct 10, a blower unit 50, and an ion generation regulator 80.

  The blower unit 50 is provided with a blower 51 inside, and blows a gaseous medium such as air taken from the outside of the ion generator 1 to the inlet 15. Here, the operating conditions of the blower 51 are configured to be settable through the drive circuit 55. The operating condition to be set includes a rotational speed condition of a motor in the blower 51, but is not limited to this operating condition.

  Moreover, in this embodiment, although the form which ventilates a gaseous medium from the air blower 51 to the inlet 15 is employ | adopted, it is not limited to this, For example, a gaseous medium is suck | inhaled to the discharge port side which discharge | releases ion A form in which an inhaler for disposing is provided may be employed.

  The duct 10 forms a flow path for discharging the blown gas medium to the outside from the discharge port 16 together with the generated ions. Further, the duct 10 is configured by a single member or a combination of a plurality of members made of a dielectric material, and a cylindrical hollow portion serves as a gas medium flow path.

  Further, in the present embodiment, the shape of the flow path is such that the cross-sectional dimension is uniform throughout the flow path and is linear in the flow path direction, but is not limited to this shape.

  The duct 10 forms a flow path by connecting four members of the ion generation unit 20 and the flow path units 21 to 23.

  As shown in FIG. 1, the ion generation unit 20 is connected to the blower unit 50 and the flow path unit 21, and forms an inlet 15 and a flow path D 0 from the inlet 15 to the flow path unit 21.

  The ion generator unit 20 is provided with an ion generator 60 that generates ions in the flow path D0. Here, the ion generator 60 can set operating conditions through the drive circuit 65. Examples of operating conditions that can be set in the ion generator 60 include a discharge voltage applied between the discharge electrodes of the ion generator 60, but are not limited to these operating conditions.

  Next, the flow path unit 21 is connected to the ion generation unit 20 and the flow path unit 22 to form a flow path D1. The flow path unit 22 is connected to the flow path unit 21 and the flow path unit 23 to form a flow path D2. Furthermore, the flow path unit 23 is connected to the flow path unit 22 and forms a flow path D3 including the discharge port 16 that discharges the blown gas medium to the external space.

  In each of the flow path units 21 to 23, conductive members 31 to 33 that form the inner wall surfaces of the flow paths D1 to D3 are disposed, respectively. The conductive members 31 to 33 are connected to variable resistors 41 to 43 configured to be electrically groundable.

  The ion generation regulator 80 includes an ion generation controller 81, a storage unit 85 connected to the ion generation controller 81, and a selection unit 86. Here, a nonvolatile memory such as an EEPROM (Electrically Erasable Programmable ROM) or a flash memory is used for the storage unit 85. The selection unit 86 includes input means such as a keyboard so that the user of the ion generator 1 can make a selection.

  The ion generation controller 81 is connected to the drive circuit 55 for the blower 51, the drive circuit 65 for the ion generator 60, and each of the variable resistors 41 to 43. Drive processing, stop processing, setting processing of operating conditions, and resistance value setting processing of the variable resistors 41 to 43 are performed.

  In the present embodiment, the ion generator controller 81 sets a high resistance value in the order of the variable resistor 41, the variable resistor 42, and the variable resistor 43. That is, the resistance value is set according to the distance on the flow path between the ion generator 60 and the conductive members 31 to 33. In other words, the resistance value is set to a higher value as the distance on the flow path is longer. From this, it is possible to discharge ions with a high concentration while maintaining a good balance between the charge recovery capability and the supply capability for each region where the conductive member is disposed.

  The storage unit 85 stores operation information ND1, ND2,... NDn including information related to resistance values set in the variable resistors 41 to 43, respectively. Here, the operation information is information used for initial setting of the blower 51, the ion generator 60, and the variable resistors 41 to 43 when the ion generator 1 is operated. The selection unit 86 is used to select one piece of operation information from the operation information ND1, ND2,... NDn stored in the storage unit 85.

  FIG. 2 is a diagram for explaining the data structure of the operation information. The operation information includes an operation mode MN, a rotation speed MS that is one of the operation conditions of the blower 51, a discharge voltage EV that is one of the operation conditions of the ion generator 60, a reference resistance value RB, and difference information RD. Yes. That is, each piece of information constituting the operation information is stored in the storage unit 85 in association with a set of information.

  Each operation information is stored in advance in the storage unit 85 as ND1, ND2,..., NDn, and using the selection unit 86, necessary operation information is selected from the operation information ND1, ND2,. Thus, necessary operation information is read from the storage unit 85, and the resistance values of the variable resistors 41 to 43 can be set via the ion generation controller 81.

  The operation mode MN is information for identifying the selected operation mode, the rotation speed MS is information regarding the rotation speed MS of the motor of the blower 51, and the discharge voltage EV is the discharge electrode of the ion generator 60. It is the information regarding the discharge voltage applied between.

  Further, the reference resistance value RB is information regarding the resistance value set in the variable resistor 41. Furthermore, the difference information RD is the difference between the resistance value of the variable resistor connected to the predetermined conductive member and the resistance value of the variable resistor connected to the conductive member adjacent to the predetermined conductive member. It is information about. Here, instead of the data configuration including the reference resistance value RB and the difference information RD, the resistance values of the variable resistors 41 to 43 may be included.

  In addition, although the case where rotation speed MS which is one of the operating conditions of the air blower 51 is included as operation information is illustrated, the other operating conditions of the air blower 51 may be included. Similarly, the case where the operation information includes the discharge voltage EV which is one of the operating conditions of the ion generator 60 is illustrated, but other operating conditions of the ion generator 60 may be included. Absent. Here, the rotational speed MS is information corresponding to the amount of movement of the gaseous medium moving through the duct 10. The discharge voltage EV is information corresponding to control information for controlling the ion generator 60.

  In this embodiment, the ion generation controller 81 reads out the resistance value information included in the operation information selected from the operation information ND1, ND2,..., NDn, and is set in each of the variable resistors 41 to 43. The Further, the resistance value information included in each operation information is configured such that a high resistance value can be set in the order of the variable resistor 41, the variable resistor 42, and the variable resistor 43. That is, it has a plurality of pieces of resistance value information corresponding to the arrangement positions of the conductive members 31 to 33, and the resistance value is set by selecting one piece of resistance value information from the plurality of pieces of resistance value information. Further, each operation information includes a rotational speed MS and a discharge voltage EV which are one of the operating conditions of the blower 51 or the ion generator 60. Therefore, even when the operating conditions of the blower 51 or the ion generator 60 are changed, a high concentration of ions can be released while maintaining a good balance between the charge recovery capability and the supply capability. it can.

  FIG. 3 is a flowchart showing the processing procedure of the ion generation controller 81, and the processing procedure of the ion generation controller 81 will be described with reference to FIG.

  First, the operation information used when operating the ion generator 1 is selected (S100). Here, various methods can be adopted as a method of selecting the operation information. For example, the operation mode MN of the operation information ND1, ND2,..., NDn stored in the storage unit 85 is read, the operation mode MN is displayed as a list on a display unit (not shown), and the operation mode MN is simply selected from the displayed operation modes MN. The operation information can be selected by causing the user to select one operation mode MN.

  Alternatively, the ion concentration generated from the discharge port 16 is detected by an ion detection sensor (not shown) that detects the ion concentration. Then, a predetermined reference ion concentration is compared with the detected ion concentration. Next, when the detected ion concentration is lower than the reference ion concentration, the operation information for increasing the ion concentration is selected, and when the detected ion concentration is higher than the reference ion concentration, the ion is selected. It is also possible for the ion generation controller 81 to select operation information for reducing the concentration from the storage unit 85.

  Alternatively, a desired rotation speed MS and discharge voltage EV are determined, and a plurality of pieces of operation information having the same contents of the determined rotation speed MS and discharge voltage EV are extracted from the storage unit 85. And the current value which flows into any one discharge electrode of the ion generator 60 is measured, and one operation information may be selected from the extracted plurality of operation information so that the current value becomes the maximum. Is possible.

  Following the process of S100, the rotational speed MS of the selected operation information is output as a signal to the drive circuit 55 for the blower 51, and the motor speed of the blower 51 is set (S101).

  Then, the discharge voltage EV of the selected operation information is output as a signal to the drive circuit 65 for the ion generator 60, and the discharge voltage applied between the discharge electrodes of the ion generator 60 is set (S102). Further, the reference resistance value RB of the selected operation information is set in the variable resistor 41 (S103).

  Next, a resistance value R2 obtained by adding the difference information RD to the reference resistance value RB and a resistance value obtained by further adding the difference information RD to the resistance value R2 are set in the variable resistor 42 and the variable resistor 43, respectively (S104, S105). ).

  Finally, signals for starting driving of the blower 51 and the ion generator 60 are output to the respective drive circuits 55 and 65 (S106), and the process is terminated.

  Thus, in the ion generator 1 which concerns on this Embodiment, the electroconductive members 31-33 are arrange | positioned for every flow-path unit 21-23, and the variable resistors 41-41 connected to each electroconductive member A resistance value of 43 is set by the ion generation regulator. From this, it is possible to discharge ions with a high concentration while maintaining a good balance between the charge recovery capability and the supply capability for each region where the conductive member is disposed.

[Second Embodiment]
FIG. 4 shows a schematic configuration of the ion generator 2 according to the second embodiment, and the ion generator 2 according to the present invention will be described below 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.

  The ion generator 2 is different from the ion generator 1 described above in the configuration of the flow path unit 25. Further, the configuration of the operation information stored in the ion generation controller 90 and the processing content in the ion generation controller 91 are different.

  The duct 11 forms a flow path for discharging the blown gas medium to the outside from the discharge port 16 together with the generated ions. The duct 11 is formed by a single member or a combination of a plurality of members made of a dielectric material, and a cylindrical hollow portion serves as a gas medium flow path.

  The duct 11 forms a flow path by connecting four members of the ion generation unit 20 and the flow path units 25, 22, and 23.

  As shown in FIG. 4, the ion generation unit 20 is connected to the blower unit 50 and the flow path unit 25, and forms the inlet 15 and the flow path D 0 from the inlet 15 to the flow path unit 25.

  The ion generator unit 20 is provided with an ion generator 60 that generates ions in the flow path D0. Here, the ion generator 60 can set operating conditions through the drive circuit 65. Examples of the operating conditions that can be set in the ion generator 60 include a discharge voltage applied between the discharge electrodes of the ion generator 60.

  Next, the flow path unit 25 is connected to the ion generation unit 20 and the flow path unit 22 to form a flow path D1. The flow path unit 25 is formed of an inner wall surface forming member 251 and a covering member 252 that form the inner wall surface of the flow path D1, and a conductive member having substantially the same size as the inner wall surface of the flow path D1 is interposed between these members. 35 is disposed along the inner wall surface. Here, the covering member 252 is provided to protect the conductive member 35 from the contact of the user and the like. The conductive member 35 is connected to a variable resistor 41 configured to be electrically groundable.

  The flow path unit 22 is connected to the flow path unit 25 and the flow path unit 23 to form a flow path D2. Furthermore, the flow path unit 23 is connected to the flow path unit 22 and forms a flow path D3 including the discharge port 16 that discharges the blown gas medium to the external space.

  Conductive members 32 and 33 forming inner wall surfaces of the flow paths D2 and D3 are disposed in the flow path units 22 and 23, respectively. The conductive members 32 and 33 are connected to variable resistors 42 and 43 configured to be electrically grounded.

  The ion generation controller 90 includes an ion generation controller 91, a storage unit 95 and a selection unit 96 connected to the ion generation controller 91.

  The ion generation controller 91 is connected to the drive circuit 55 for the blower 51, the drive circuit 65 for the ion generator 60, and each of the variable resistors 41 to 43. Drive processing, stop processing, setting processing of operating conditions, and resistance value setting processing of the variable resistors 41 to 43 are performed.

  The storage unit 95 stores operation information SD1, SD2,..., SDn including information related to resistance values set in the variable resistors 41 to 43, respectively. Here, the operation information is information used to initially set the blower 51, the ion generator 60, and the variable resistors 41 to 43 when the ion generator 2 is operated. The selection unit 96 is used to select one piece of operation information from the operation information SD1, SD2,..., SDn stored in the storage unit 95.

  FIG. 5 is a diagram for explaining the data structure of the operation information. The operation information includes the operation mode MN, the rotation speed MS that is one of the operation conditions of the blower 51, the discharge voltage EV that is one of the operation conditions of the ion generator 60, the first reference resistance value R1B, and the second reference resistance value. R2B and difference information RD are comprised. That is, each piece of information constituting the operation information is stored in the storage unit 95 in association with a set of information.

  Each operation information is stored in advance in the storage unit 95 as SD1, SD2,..., SDn, and using the selection unit 96, the necessary operation information is selected from the operation information SD1, SD2,. Thus, necessary operation information is read from the storage unit 95, and the resistance values of the variable resistors 41 to 43 can be set via the ion generation controller 91.

  The operation mode MN is information for identifying the selected operation mode, the rotation speed MS is information regarding the rotation speed MS of the motor of the blower 51, and the discharge voltage EV is the discharge electrode of the ion generator 60. It is the information regarding the discharge voltage EV applied between them. Here, the operation mode MN, the rotation speed MS, and the discharge voltage EV have the same data configuration as the operation information stored in the storage unit 85 of the ion generator 1 described above with reference to FIG.

  Further, a resistance value set in the variable resistor 41 is stored in the first reference resistance value R1B, and a resistance value set in the variable resistor 42 is stored in the second reference resistance value R2B. The difference information RD stores a difference between the resistance value of the variable resistor 42 and the resistance value of the variable resistor 43.

  And the structure of the flow path unit 25 and the flow path units 22 and 23 differs in that the inner wall surface of the flow path is formed of a dielectric member or a conductive member. The resistance value set for the variable resistor 41 is set to a very low resistance value compared to the resistance values set for the variable resistors 42 and 43. Therefore, a data configuration including a first reference resistance value R1B used for setting the resistance value of the variable resistor 41 and a second reference resistance value R2B used for setting the resistance values of the variable resistors 42 and 43 is adopted. Yes. Here, instead of using such a data configuration, the resistance values of the variable resistors 41 to 43 may be included.

  In the present embodiment, the ion generation controller 91 reads out resistance value information included in the operation information selected from the operation information SD1, SD2,..., SDn, and sets it in each of the variable resistors 41 to 43. Further, the resistance value information included in each operation information is configured such that a high resistance value can be set in the order of the variable resistor 42 and the variable resistor 43 separately from the variable resistor 41. The conductive members 32 and 33 connected to the variable resistors 42 and 43 are disposed in the flow path units 22 and 23 having the same configuration of the conductive member and the dielectric member forming the flow path. ing. From this, it is possible to release high-concentration ions while maintaining a good balance between the charge recovery capability and the supply capability for each region that differs depending on the conditions relating to the duct configuration such as the duct member or material.

  FIG. 6 is a flowchart showing the processing procedure of the ion generation controller 91. The processing procedure of the ion generation controller 91 will be described below with reference to FIG.

  First, the operation information used when operating the ion generator 2 is selected (S200). Here, various methods can be adopted as a method of selecting the operation information. For example, the operation mode MN of the operation information SD1, SD2,..., SDn stored in the storage unit 95 is read, a list of the operation modes MN is displayed on a display unit (not shown), and the operation mode MN is simply selected from the displayed operation modes MN. The operation information can be selected by causing the user to select one operation mode MN.

  Alternatively, the ion concentration generated from the discharge port 16 is detected by an ion detection sensor (not shown) that detects the ion concentration. Then, a predetermined reference ion concentration is compared with the detected ion concentration. Next, when the detected ion concentration is lower than the reference ion concentration, the operation information for increasing the ion concentration is selected, and when the detected ion concentration is higher than the reference ion concentration, the ion is selected. It is also possible for the ion generation controller 91 to select operation information for decreasing the concentration from the storage unit 95.

  Alternatively, a desired rotation speed MS and discharge voltage EV are determined, and a plurality of pieces of operation information having the same contents of the determined rotation speed MS and discharge voltage EV are extracted from the storage unit 95. And the current value which flows into any one discharge electrode of the ion generator 60 is measured, and one operation information may be selected from the extracted plurality of operation information so that the current value becomes the maximum. Is possible.

  Subsequent to the process of S200, the rotational speed MS of the selected operation information is output as a signal to the drive circuit 55 for the blower 51, and the motor speed of the blower 51 is set (S201).

  Subsequently, the discharge voltage EV of the selected operation information is output as a signal to the drive circuit 65 for the ion generator 60, and the discharge voltage applied between the discharge electrodes of the ion generator 60 is set (S202). The processing from S200 to S202 is the same as the processing procedure from S100 to S102 in FIG.

  Subsequent to S202, the first reference resistance value R1B of the selected operation information is set in the variable resistor 41 (S203). Subsequently, the second reference resistance value R2B of the selected operation information is set in the variable resistor 42 (S204). Subsequently, a resistance value obtained by adding the difference information RD to the second reference resistance value R2B is set in the variable resistor 43 (S205). Finally, signals for starting driving of the blower 51 and the ion generator 60 are output to the respective drive circuits 55 and 65 (S206), and the processing is terminated.

  As described above, in the ion generator 2 according to the present embodiment, the conductive members 35, 32, and 33 are disposed for the respective flow path units 25, 22, and 23, and are variable connected to the respective conductive members. Resistance values of the resistors 41 to 43 are set. From this, it is possible to maintain a good balance between the charge recovery capability and the supply capability for each region where the conductive member is disposed, and high-concentration ions can be released.

  As described above, in the ion generator of the present invention, a high concentration of ions can be released while maintaining a good balance between the charge recovery capability and the supply capability over the entire flow path.

  Here, in the ion generator according to the present embodiment, the case where the ion generation controllers 81 and 91 read out the processing procedure according to FIGS. 3 and 6 described above from the storage units 85 and 95 as a control program and executed it has been described. . However, the control program read by the ion generation controllers 81 and 91 can be recorded in advance on a recording medium readable by the ion generation apparatus and provided as a program product. Examples of such a recording medium include a CD (Compact Disc) or a memory card. Alternatively, it can be provided by being recorded on a recording medium such as a hard disk built in the ion generator. Further, it can be provided by downloading through various networks including the Internet.

  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, 2 Ion generators 10 and 11 Duct 15 Inlet 16 Outlet 20 Ion generating unit 21, 22, 23, 25 Flow path unit 251 Inner wall surface forming member 252 Cover member 31, 32, 33, 35 Conductive member 41, 42, 43 Variable resistor 50 Blower unit 51 Blower 55 Drive circuit (for blower)
60 ion generator 65 drive circuit (for ion generator)
80, 90 Ion generation controller 81, 91 Ion generation controller 85, 95 Storage unit 86, 96 Select unit

Claims (5)

A duct that forms a flow path for the gaseous medium;
An ion generator for generating ions in the flow path;
A plurality of conductive members spaced apart along the flow path and disposed in the duct;
Each of the plurality of conductive members has a plurality of resistors that are individually connected and can be electrically grounded,
According to the distance on the flow path between the ion generator and the conductive member, the resistance value of the resistor is set to a higher value as the distance on the flow path is longer. . It has a plurality of resistance value information according to the arrangement position of the conductive member,
The ion generator according to claim 1, wherein the resistance value is set by selecting single resistance value information from the plurality of resistance value information. The ion generator according to claim 2 , wherein each of the plurality of pieces of resistance value information is stored in association with operation information used when the ion generator is operated. The ion generation apparatus according to claim 3 , wherein the operation information includes information corresponding to a movement amount of the gas medium moving in the duct. The ion generator according to claim 3 or 4 , wherein the operation information includes information corresponding to control information for controlling the ion generator.