JP2017116288A - Ion Checker - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a technique with which it is possible to easily detect ions near an ion generator using a compact and low-cost device.SOLUTION: An ion checker of the present invention comprises an ion sensor and a light-emitting unit. The ion sensor detects ions near an ion generator and outputs a voltage signal based on the result of ion detection. The ion sensor includes a first ion sensor and a second ion sensor. The light-emitting unit has a light-emitting element. The light-emitting element emits light on the basis of the voltage signal outputted from the first ion sensor and/or the second ion sensor. Or the ion checker comprises an ion sensor, a light-emitting unit, and a light control unit. The light-emitting unit has a plurality of light-emitting elements. The light control unit exercises light emission control of the light-emitting unit, controlling the number of light-emitting elements emitting light, on the basis of the voltage value of a voltage signal.SELECTED DRAWING: Figure 1

Description

  The present invention relates to an ion checker that detects ions generated when an ion generator is turned ON / OFF in order to check the operation of the ion generator.

  Conventionally, a bazooka or simple ion counter is known as an apparatus that accurately measures the amount of ions in the air, and is also used for inspections for confirming whether or not ions are generated in an ion generator.

  As a prior art related to the present invention, Patent Document 1 teaches an ion sensor mounted on an ion generator. In this ion sensor, the charge of ions in the vicinity of the ion generator is collected by one electrode and accumulated in a charging capacitor. A discharge lamp is connected in parallel to the charging capacitor. The discharge lamp is repeatedly lit by the voltage of the charging capacitor, but the charging capacitor is discharged each time it is lit. Then, the LED is periodically lit according to the output signal of the discharge waveform detection forming circuit that detects the discharge pulse based on the discharge. The presence of ions in the vicinity of the ion generator and the concentration of the collected ions are notified by the lighting and the lighting cycle.

Japanese Unexamined Patent Publication No. 2004-3388

  However, although the ion counter as described above is effective for measuring the amount of ions for quality assurance, it is an overspec as an inspection device that only needs to detect the presence or absence of rough ions. It is. In other words, the bazooka type ion counter is expensive and cannot be easily purchased, and the size of the apparatus is large, so it is not suitable for inspection on a production line. In addition, the simple ion counter is cheaper and smaller than the bazooka method, but it can be used for inspection on production lines, etc., where it is only necessary to confirm the presence or absence of ion generation or a rough detection of the ion amount without measuring the ion amount. The device is still expensive and over-spec.

  It is also conceivable to use an ion sensor such as that disclosed in Patent Document 1 simply for checking whether or not ions are generated. However, in this ion sensor, the LED is periodically lit even during ion detection. Therefore, there is a problem that it is difficult to determine whether the ion generation is intermittent or continuous.

  In view of the above situation, an object of the present invention is to provide a technique capable of easily detecting ions in the vicinity of an ion generator with a small and low-cost apparatus.

  In order to achieve the above object, an ion checker according to an aspect of the present invention includes an ion sensor that detects ions in the vicinity of an ion generator and outputs a voltage signal based on the detection result of the ions, and a light emitting unit including a light emitting element The ion sensor includes a first ion sensor and a second ion sensor, and the light emitting element emits light based on a voltage signal output from at least one of the first ion sensor and the second ion sensor. It is supposed to be configured.

  The ion checker is configured such that the voltage value of the voltage signal increases from the reference voltage value when positive ions are detected, and decreases from the reference voltage value when negative ions are detected. Alternatively, the ion checker is configured such that the voltage value of the voltage signal decreases from the reference voltage value when positive ions are detected, and increases from the reference voltage value when negative ions are detected. The reference voltage is a voltage value of a voltage signal output from an ion sensor in a state where ions in the vicinity of the ion generator are not detected.

  The ion checker further includes a light control unit that performs light emission control of the light emitting unit, and the light control unit includes a plurality of light emitting elements, and the light control unit is output from at least one of the first ion sensor and the second ion sensor. The number of light emission of the light emitting element may be controlled based on the voltage value of the voltage signal.

  In the ion checker described above, the light-emitting element has a first voltage signal output from the first ion sensor when the first ion sensor detects positive ions, and a negative voltage when the second ion sensor detects negative ions. A first light emitting element that emits light based on at least one of the second voltage signals output from the second ion sensor, wherein the light emitting unit further includes the first light emitting element when the first ion sensor detects negative ions. Second light emission that emits light based on at least one of the third voltage signal output from the ion sensor and the fourth voltage signal output from the second ion sensor when the second ion sensor detects positive ions. You may be set as the structure containing an element.

  The ion checker further includes a light control unit that performs light emission control of the light emitting unit, and at least one of the first light emitting element and the second light emitting element is plural, and the light control unit includes plural first light emitting elements. If there is, the number of light emission of the first light emitting element is controlled based on the voltage value of at least one of the first voltage signal and the second voltage signal. The number of light emission of the second light emitting element may be controlled based on the voltage value of at least one of the four voltage signals.

  In order to achieve the above object, an ion checker according to an aspect of the present invention includes an ion sensor that detects ions in the vicinity of an ion generator and outputs a voltage signal based on the detection result of the ions, and a plurality of light emitting elements. And a light control unit that performs light emission control of the light emitting unit, and the light control unit is configured to control the number of light emission of the light emitting element based on the voltage value of the voltage signal.

  In the above ion checker, the light emitting element includes a first light emitting element that emits light when the ion sensor detects positive ions, and a second light emitting element that emits light when the ion sensor detects negative ions. There may be.

  Alternatively, the ion checker includes a plurality of ion sensors, the light emitting element includes a plurality of third light emitting elements associated with each ion sensor, and each third light emitting element is associated with an ion sensor. May be configured to emit light when ions are detected.

  The ion checker may be configured to further include an attachment member that can be attached to the ion generator.

  According to the present invention, ions in the vicinity of an ion generator can be easily detected with a small and low-cost apparatus.

It is a schematic diagram which shows the structural example of the ion checker which concerns on 1st Embodiment. It is a circuit diagram which shows the structural example of an ion sensor. It is a circuit diagram which shows the structural example of the drive circuit of a cluster unit. It is a schematic diagram which shows the structural example of the ion checker which concerns on 2nd Embodiment. It is a schematic diagram which shows the structural example of the ion checker which concerns on the modification of 2nd Embodiment. It is a top view of the ion checker which concerns on 3rd Embodiment. It is a side view of the ion checker which concerns on 3rd Embodiment. It is a top view of the ion checker attached to the cluster ion. It is a side view of the ion checker attached to the cluster ion.

  Embodiments of the present invention will be described below with reference to the drawings.

<First Embodiment>
FIG. 1 is a schematic diagram illustrating a configuration example of an ion checker 100 according to the first embodiment. The ion checker 100 is an example of an ion detector, and detects whether or not ions are generated in the vicinity of the cluster unit 200. The cluster unit 200 is an ion generator and generates, for example, positive ions such as H ⁺ (H ₂ O) m described later and negative ions such as O ₂ ⁻ (H ₂ O) n described later. To the vicinity of the cluster unit 200.

  As shown in FIG. 1, the ion checker 100 includes an ion sensor 1 and a light emitting unit 3. In addition, the ion checker 100 may further include a power source P. The power source P is a DC power source, and supplies a power supply voltage (for example, 5 [V]) to each ion sensor 1a, 1b.

  The ion sensor 1 includes two ion sensors 1a and 1b, detects ions in the vicinity of the cluster unit 200, and outputs a voltage signal based on the detection result of the ions. In FIG. 1, the ion sensor 1 a is disposed in the vicinity of the positive ion generator 210 of the cluster unit 200, and the ion sensor 1 b is disposed in the vicinity of the negative ion generator 220. Each ion sensor 1a, 1b has current collecting electrodes Ea, Eb that collect the charge of ions existing in the vicinity of the surrounding cluster unit 200, and has voltage values based on the potentials of the current collecting electrodes Ea, Eb. Outputs a voltage signal. Hereinafter, when the ion sensors 1a and 1b are collectively referred to without being distinguished from each other, they are simply referred to as an ion sensor 1. Similarly, the collector electrodes Ea and Eb may be simply referred to as the collector electrode E.

  The light emitting unit 3 includes light emitting elements such as a red light emitting LED 31 and a green light emitting LED 32, and emits light based on voltage signals output from the ion sensors 1a and 1b. The anode terminal A of the red light emitting LED 31 and the cathode terminal K of the green light emitting LED 32 are connected to the ion sensor 1a (terminal T2 described later), and the cathode terminal K of the red light emitting LED 31 and the anode terminal A of the green light emitting LED 32 are the ion sensor 1b ( Terminal T2). In other words, the red light emitting LED 31 and the green light emitting LED 32 are connected bidirectionally so that the light emitting unit 3 can emit light regardless of whether each ion sensor 1a, 1b detects positive ions or negative ions.

  The voltage value of the voltage signal output from the ion sensor 1 becomes a reference voltage (for example, half of the power supply voltage; 2.5 [V]) when the ion sensor 1 does not detect ions in the vicinity of the cluster unit 200. . The reference voltage is a voltage value of a voltage signal output from the ion sensors 1a and 1b in a state where no ions near the cluster unit 200 are detected. In other words, the reference voltage is a voltage based on the reference potential of the current collecting electrode E, and the reference potential is the potential of the current collecting electrode E in a state where the charge of ions near the cluster unit 200 is not collected. On the other hand, in this embodiment, when the ion sensor 1 detects positive ions, the voltage value of the voltage signal output from the ion sensor 1 increases from the reference voltage toward, for example, the power supply voltage (5 [V]). When negative ions are detected, the voltage decreases from the reference voltage toward the ground voltage (GND; 0 [V]) (see FIG. 2 described later). In addition, it is not limited to this illustration, The tendency of the change of the voltage value may be opposite to the above.

  The ion checker 100 causes the light emitting unit 3 (that is, the red light emitting LED 31 and the green light emitting LED 32) to emit light using the above-described characteristics. That is, the red light emitting LED 31 has a voltage signal output from the ion sensor 1a when the ion sensor 1a detects positive ions and the current collecting electrode Ea collects charges of the positive ions, and the ion sensor 1b is negative. When ions are detected and the current collecting electrode Eb collects the charge of the negative ions, light is emitted based on at least one of the voltage signals output from the ion sensor 1b. The green light emitting LED 32 has a voltage signal output from the ion sensor 1a when the ion sensor 1a detects negative ions and the current collecting electrode Ea collects charges of the negative ions, and the ion sensor 1b is positive. When ions are detected and the current collecting electrode Eb collects the electric charge of the positive ions, light is emitted based on at least one of voltage signals output from the ion sensor 1b.

  The ion checker 100 can freely adjust the shape and the like according to the inspection target, and can be used for, for example, the operation inspection of the cluster unit 200 in the manufacturing process. That is, when checking the operation of the cluster unit 200 in a reliability test or the like, it is possible to detect the presence or absence of ion generation close to the ion generation unit. In addition, when inspecting an electrical component (for example, an electrical substrate) of the cluster unit 200, it is possible to check the quality of the electrical component by detecting whether or not ions are generated when the electrical component is energized. Moreover, since the ion checker 100 can be manufactured at a low cost and can be reduced in size as will be described later, the ion checker 100 is not easily restricted by the place where it is used, and can be used relatively freely.

  Next, the configuration of the ion sensor 1 will be described. FIG. 2 is a circuit diagram illustrating a configuration example of the ion sensor 1. The ion sensor 1 includes a sensor substrate 11, a voltage generation unit 12, a protective electrode 13, and a current collecting electrode E.

  The voltage generator 12 is disposed on one main surface (hereinafter referred to as a front surface) 11a of the sensor substrate 11, and includes a connector T having an operational amplifier IC1, capacitors C1 to C3, electric resistors R1 to R5, and terminals T1 to T3. It is configured to include. A terminal T1 of the connector T is connected to a power source P and receives a power supply voltage of 5 [V] from the power source P. The terminal T <b> 2 is connected to the light emitting unit 3 and outputs a voltage signal having a voltage value generated by the voltage generating unit 12 according to the potential of the current collecting electrode E to the light emitting unit 3. The terminal T3 is connected to the ground potential (GND).

  The electric resistance R4 is connected to the terminal T1, and pulls up the current collecting electrode E to a DC voltage of 5 [V]. Both terminals of the electric resistance R4 are connected in parallel with the capacitor C1. The current collecting electrode E is provided on the other main surface (back surface) 11b of the sensor substrate 11, and is connected to the non-inverting input terminal (IN +) of the operational amplifier IC1 through the protective electric resistance R1 of the voltage generation unit 12. ing. An electric resistance R2 is connected between the inverting input terminal (IN−) and the output terminal (OUT) of the operational amplifier IC1. The output terminal (OUT) is also connected to one ends of the electric resistors R3 and R5. The other ends of the electric resistors R3 and R5 are connected in series with one ends of the capacitors C2 and C3, respectively. The other ends of the capacitors C2 and C3 are each connected to a ground potential (GND). A connection point between the capacitor C2 and the electric resistance R3 is connected to the protective electrode 13. The protective electrode 13 surrounds the periphery excluding a part of the current collecting electrode E, and also surrounds the electrical resistance R1 for protection and a portion connected to both terminals of the electrical resistance R1. A connection point between the capacitor C3 and the electric resistance R5 is connected to a terminal T2 of the connector T.

  In the above-described circuit (voltage generation unit 12), when negative ion charges are collected by the collector electrode E, the negative charges of the negative ions are collected by the collector electrode E to charge the capacitor C1. Therefore, the potential at the connection point between the capacitor C1 and the protective electrical resistor R1 is lowered. On the other hand, when positive ion charges are collected by the collector electrode E, positive charges of the positive ions are collected by the collector electrode E to charge the capacitor C1. Therefore, the potential at the connection point between the capacitor C1 and the protective electrical resistance R1 increases. The potential at the connection point is applied to the non-inverting input terminal (IN +) of the operational amplifier IC1 through the protective electrical resistance R1. Here, the operational amplifier IC1 forms an impedance converter with an amplification factor of 1 with the output terminal (OUT) fed back to the inverting input terminal (IN−). Therefore, the potential at the output terminal (OUT) is the same as the potential applied to the non-inverting input terminal (IN +). This potential is output to the terminal T2 through the electric resistance R5 as a voltage signal having an analog voltage value with respect to the ground potential (GND).

  The output impedance of the operational amplifier IC1 is sufficiently smaller than the electric resistance value of the electric resistor R3, and the protective electrode 13 is 1 of the electric resistance R4 (1 GΩ) that pulls up the current collecting electrode E. It is kept at the same potential as the current collecting electrode E through an electric resistance R3 (10 kΩ) having an electric resistance value of / 100,000. Therefore, the charge collected by the current collecting electrode E is prevented from moving outside the enclosure of the protective electrode 13 through the surface 11a of the sensor substrate 11 from the current collecting electrode E to the operational amplifier IC1. The

  The protective electrical resistance R1 is not limited to electrical resistance. For example, a series-parallel circuit including circuit elements such as electrical resistance and a coil may be used for purposes other than protection.

  Next, the cluster unit 200 will be described. The cluster unit 200 is an ion generator that is driven and controlled by a control unit (not shown), and is covered with a dielectric cover 230 such as ceramic (see FIG. 1). In the cover 230, a circuit board (not shown) on which a first discharge electrode 210a, a first induction electrode 210b, a second discharge electrode 220a, a second induction electrode 220b, and a drive circuit 240 (see FIG. 3 described later) are mounted. ) Is placed. The first discharge electrode 210a and the first induction electrode 210b constitute a positive ion generator 210, and the second discharge electrode 220a and the second induction electrode 220b constitute a negative ion generator 220.

  The first discharge electrode 210a and the second discharge electrode 220a are formed in a needle shape and are arranged in parallel at a predetermined interval. The first induction electrode 210b is formed in an annular shape centering on the first discharge electrode 210a and faces the first discharge electrode 210a. The second induction electrode 220b is formed in an annular shape centering on the second discharge electrode 220a, and faces the second discharge electrode 220a.

  The drive circuit 240 drives the positive ion generator 210 and the negative ion generator 220. FIG. 3 is a circuit diagram illustrating a configuration example of the drive circuit 240 of the cluster unit 200. Terminals 240a and 240b at one end of the drive circuit 240 are connected to a power supply circuit (not shown). When a current in a predetermined direction flows between the power supply circuit between the terminals 240 a and 240 b and a voltage is applied, the capacitor 243 is charged through the diode 241 and the resistor 242.

  When the voltage between the terminals of the capacitor 243 rises and reaches the breakover voltage of the two-terminal thyristor 244, the two-terminal thyristor 244 operates like a Zener diode and flows current. When the current flowing through the two-terminal thyristor 244 reaches the breakover current, the two-terminal thyristor 244 is substantially short-circuited. As a result, the electric charge charged in the capacitor 243 is discharged through the two-terminal thyristor 244 and the primary winding 245a of the pulse transformer 245, and an impulse voltage is generated in the primary winding 245a.

  When an impulse voltage is generated in the primary winding 245a, positive and negative high voltage pulses are generated in the secondary winding 245b of the pulse transformer 245 while being alternately attenuated. The first induction electrode 210b and the second induction electrode 220b are connected to one end of the secondary winding 245b. The other end of the secondary winding 245b is connected to the first discharge electrode 210a and the second discharge electrode 220a via diodes 246 and 247, respectively.

  For this reason, the positive high voltage pulse generated in the secondary winding 245 b is applied to the first discharge electrode 210 a via the diode 246. Thereby, corona discharge is generated at the tip of the first discharge electrode 210a. The negative high voltage pulse generated in the secondary winding 245b is applied to the second discharge electrode 220a through the diode 247. Thereby, corona discharge is generated at the tip of the second discharge electrode 220a. The first discharge electrode 231a and the second discharge electrode 232a are alternately applied with a high voltage at a predetermined cycle. However, two independent drive circuits may be provided to apply a high voltage at the same time.

The corona discharge of the first discharge electrode 210a ionizes surrounding water molecules and generates hydrogen ions. This hydrogen ion is clustered with surrounding water molecules by solvation energy. As a result, positive ions composed of H ⁺ (H ₂ O) m (m is 0 or an arbitrary natural number) are released from the positive ion generator 210 to the periphery thereof.

Further, the corona discharge of the second discharge electrode 220a ionizes surrounding oxygen molecules or water molecules to generate oxygen ions. These oxygen ions are clustered with surrounding water molecules by solvation energy. As a result, negative ions made of O ₂ ⁻ (H ₂ O) n (n is an arbitrary natural number) are released from the negative ion generator 220 to the periphery thereof.

H ⁺ (H ₂ O) m and O ₂ ⁻ (H ₂ O) n aggregate on the surface of surrounding airborne bacteria and odor components and surround them. Then, as shown in the following formulas (1) to (3), [• OH] (hydroxyl radical) and H ₂ O ₂ (hydrogen peroxide), which are active species, are agglomerated and formed on the surface of a microorganism or the like by collision. And destroy floating bacteria and odor components. Here, m ′ and n ′ are arbitrary natural numbers. Therefore, sterilization and odor removal in the room can be performed by sending positive ions and negative ions into the room.

H ⁺ (H ₂ O) m + O ₂ ⁻ (H ₂ O) n → OH + 1 / 2O ₂ + (m + n) H ₂ O (1)
_{^{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ 2 OH + O ₂ + (m + m ′ + n + n ′) H ₂ O (2)
_{^{H + (H 2 O) m}} + H + (H 2 O) m '+ O 2 - (H 2 O) n + O 2 - (H 2 O) n'
→ H ₂ O ₂ + O ₂ + (m + m ′ + n + n ′) H ₂ O (3)

  The cluster unit 200 is provided, for example, inside a housing of an air cleaner (not shown). The positive ion generation unit 210 faces the first air duct and includes the generated positive ions in the air that flows through the first air duct and is sent to the outside from the outlet. It is sent out from the first outlet 13. The negative ion generator 220 faces the second air duct, and includes the generated negative ions in the air that flows through the second air duct and is sent to the outside from the air outlet. At this time, positive ions and negative ions are circulated separately in the first air duct and the second air duct. And the positive ion and negative ion which were sent out from the blower outlet destroy surrounding airborne microbes and odor components. By this action, indoor sterilization and deodorization are performed.

As described above, according to the present embodiment, the ion checker 100 detects ions (for example, H ⁺ (H ₂ O) m and O ₂ ⁻ (H ₂ O) n) in the vicinity of the ion generator 200 and detects the ions. An ion sensor 1 that outputs a voltage signal based on the detection result and a light emitting unit 3 having light emitting elements 31 and 32 are included. The ion sensor 1 includes a first ion sensor 1a and a second ion sensor 1b. , 32 are configured to emit light based on a voltage signal output from at least one of the first ion sensor 1a and the second ion sensor 1b.

According to this configuration, the ion checker 100 includes ions (for example, H ⁺ (H ₂ O) m and O ₂ ⁻ (H ₂ ) in the vicinity of the ion generator 200 at least one of the first ion sensor 1a and the second ion sensor 1b. O) n) can be detected. Further, the ion checker 100 can notify the detection of ions in the vicinity of the ion generator 200 of at least one of the first ion sensor 1a and the second ion sensor 1b by light emission. That is, the ion checker 100 can detect ions in the vicinity of the ion generator 200 with a simple configuration and can notify the detection result using the light emitting unit 3. Therefore, the ion checker 100 can easily detect ions in the vicinity of the ion generator 200 with a small and low-cost apparatus.

Further, the ion checker 100 is configured such that when a positive ion (for example, H ⁺ (H ₂ O) m) is detected, the voltage value of the voltage signal is a reference voltage value (for example, half of the power supply voltage 5 [V]; 5 [V]), and when negative ions (for example, O ₂ ⁻ (H ₂ O) n) are detected, the reference voltage value is decreased. Alternatively, the voltage value of the voltage signal decreases from the reference voltage value when positive ions are detected, and increases from the reference voltage value when negative ions are detected. The reference voltage is a voltage value of a voltage signal output from the ion sensor 1 in a state where ions in the vicinity of the ion generator 200 are not detected. That is, the reference voltage is a voltage value based on the reference potential of the current collecting electrode E, and the reference potential is the potential of the current collecting electrode E in a state where the charge of ions in the vicinity of the ion generator 200 is not collected.

  According to this configuration, the type of ions detected by the first ion sensor 1a and the second ion sensor 1b and the detected amount can be reflected in the voltage value of the voltage signal.

In the ion checker 100 described above, the light-emitting element 31 has a first output from the first ion sensor 1a when the first ion sensor 1a detects positive ions (for example, H ⁺ (H ₂ O) m). Based on at least one of the voltage signal and the second voltage signal output from the second ion sensor 1b when the second ion sensor 1b detects negative ions (for example, O ₂ ⁻ (H ₂ O) n). The light emitting unit 3 further emits a third voltage signal output from the first ion sensor 1a when the first ion sensor 1a detects negative ions, and second ions. The sensor 1b includes a second light emitting element 32 that emits light based on at least one of the fourth voltage signals output from the second ion sensor 1b when positive ions are detected.

According to this configuration, positive ions (for example, H ⁺ (H ₂ O) m) of one of the first ion sensor 1a and the second ion sensor 1b due to light emission of the first light emitting element 31 and the second light emitting element 32. And the detection of negative ions (for example, O ₂ ⁻ (H ₂ O) n) on the other side can be notified at the same time.

Second Embodiment
Next, a second embodiment will be described. In the second embodiment, there are a plurality of LEDs 31 and 32, and the ion checker 100 causes the number of LEDs 31 and 32 to emit light according to the detected amount of ions. Hereinafter, a configuration different from the first embodiment will be described. Moreover, the same code | symbol is attached | subjected to the structure part similar to 1st Embodiment, and the description may be abbreviate | omitted.

  FIG. 4 is a schematic diagram illustrating a configuration example of the ion checker 100 according to the second embodiment. As shown in FIG. 4, the ion checker 100 further includes a light control unit 5 and a mounting substrate 7 in addition to the ion sensor 1 and the light emitting unit 3. The mounting substrate 7 is provided with a light emitting unit 3, a light control unit 5, and various wirings.

  The light control unit 5 includes a microcomputer 51 and an LED driver IC 52 and performs light emission control of the light emitting unit 3. The microcomputer 51 is a drive control unit that controls the LED driver IC 52, and outputs a light emission control signal to the LED driver IC 52. The LED driver IC 52 is a light driving unit, and drives the light emitting unit 3 (that is, each red light emitting LED 31 and each green light emitting LED 32) to emit light based on a light emission control signal. The light emitting unit 3 includes eight red light emitting LEDs 31 and eight green light emitting LEDs 32. Each red light emitting LED 31 and each green light emitting LED 32 are connected in parallel to each other, and their anode terminals A are connected to a power source P (not shown in FIG. 4) and supplied with a power source voltage (5 [V]), and are connected to a cathode. The terminal K is connected to the LED driver IC 52. The number of red light emitting LEDs 31 and green light emitting LEDs 32 is not limited to the example shown in FIG. Further, only one of the red light emitting LED 31 and the green light emitting LED 32 may be plural.

  The light control unit 5 determines the red light emitting LED 31 and the green light emitting LED 32 to emit light based on the voltage value of the voltage signal output from at least one of the ion sensors 1a and 1b, and further controls the number of light emission thereof. . If it carries out like this, the ion checker 100 can alert | report detection of a positive ion by light emission of red light emission LED31, for example, and may alert | report detection of a negative ion by light emission of green light emission LED32. Furthermore, the degree of each detected amount of positive ions and negative ions can be notified by the number of emitted lights of the red light emitting LED 31 and the green light emitting LED 32.

  That is, for example, when the ion sensors 1a and 1b as shown in FIG. 2 detect positive ions, the voltage value of the voltage signal output from the ion sensors 1a and 1b depends on the reference voltage (2.5 [V]) increases toward the power supply voltage (5 [V]), and is larger than the reference voltage and lower than the power supply voltage. When the ion sensors 1a and 1b detect negative ions, the voltage value of the voltage signal output from the ion sensors 1a and 1b is changed from the reference voltage to the ground voltage (GND; 0 [V]) according to the detected amount of negative ions. ), And becomes equal to or higher than the ground voltage and lower than the reference voltage. The light control unit 5 determines the red light emitting LED 31 and the green light emitting LED 32 that emit light based on the voltage value that changes in this way, and controls the number of light emission thereof.

  For example, when the ion sensors 1a and 1b detect different types of ions, when the voltage value of one of the voltage signals of the ion sensors 1a and 1b is larger than the reference voltage, the light control unit 5 detects positive ions. To determine the light emission of the red light emitting LED 31. Further, the light control unit 5 causes one red light emitting LED 31 to emit light when the voltage value is close to the reference voltage, and causes all eight red light emitting LEDs 31 to emit light when the voltage value is close to the power supply voltage. That is, the ion checker 100 notifies the degree of positive ion detection amount based on the number of light emission of the red light emitting LED 31.

  In the above case, the light control unit 5 emits the green LED 32 to notify the detection of negative ions when the voltage value of the other voltage signal of the ion sensors 1a and 1b is smaller than the reference voltage. decide. Further, the light control unit 5 causes one green light emitting LED 32 to emit light when the voltage value is close to the reference voltage, and causes all eight green light emitting LEDs 32 to emit light when the voltage value is close to the ground voltage. That is, the ion checker 100 notifies the degree of the negative ion detection amount based on the number of light emission of the green light emitting LED 32.

  However, when the voltage value of each voltage signal is substantially the same as the reference voltage (that is, when the ion sensors 1a and 1b detect neither positive ions nor negative ions), the light control unit 5 emits the red LED 31 and the green LED. The LED 32 is not allowed to emit light. When the ion sensors 1a and 1b simultaneously detect the same kind of ions (that is, one of positive ions and negative ions), the light control unit 5 determines the absolute value {= | (voltage value) of the amount of change in voltage value. Based on a voltage signal having a larger − (reference voltage) |}, a red light emitting LED 31 or a green light emitting LED 32 to be emitted is determined, and the number of light emission is controlled.

  Note that the ion checker 100 is not limited to the above-described example. For example, the ion checker 100 associates the detection of ions by the ion sensor 1a with the light emission of the red light emitting LED 31 and the detection of ions by the ion sensor 1b is the light emission of the green light emitting LED 32. You may associate. That is, the ion detection in the ion sensor 1a may be notified by the light emission of the red light emitting LED 31, and the ion detection in the ion sensor 1b may be notified by the light emission of the green light emitting LED 32. Further, the degree of ion detected by the ion sensor 1a may be notified by the number of emitted lights of the red light emitting LED 31, and the degree of ion detected by the ion sensor 1b may be notified by the number of emitted lights of the green light emitting LED 32.

<Modification of Second Embodiment>
Moreover, the number of the ion sensors 1 with which the ion checker 100 is provided is not limited to the illustration of FIG. FIG. 5 is a schematic diagram illustrating a configuration example of an ion checker 100 according to a modification of the second embodiment. As shown in FIG. 5, the ion checker 100 may be configured to include one ion sensor 1. According to this configuration, the ion checker 100 can notify the type of ions detected by the ion sensor 1 by causing one of the red light emitting LED 31 and the green light emitting LED 32 to emit light. For example, the red light emitting LED 31 can emit light when positive ions are detected, and the green light emitting LED 32 can emit light when negative ions are detected. In addition, the degree of the amount of ions detected by the ion sensor 1 can be notified by the number of light emitted from the red light emitting LED 31 or the green light emitting LED 32.

  Further, the number of ion sensors 1 included in the ion checker 100 may be three or more.

  As described above, according to the present embodiment, the ion checker 100 further includes the light control unit 5 that performs light emission control of the light emitting unit 3, the light emitting elements 31 and 32 are plural, and the light control unit 5 includes the first ions. Based on the voltage value of the voltage signal output from at least one of the sensor 1a and the second ion sensor 1b, the number of light emission of the light emitting elements 31, 32 is controlled.

  According to this configuration, the light emission number of the light emitting elements 31 and 32 is controlled based on the voltage value of the voltage signal output from at least one of the first ion sensor 1a and the second ion sensor 1b. Therefore, the degree of the amount of ions detected by at least one of the first ion sensor 1a and the second ion sensor 1b (that is, the amount of ions in the vicinity of the ion generator 200) is notified based on the number of light emission elements 31 and 32. it can. Further, the amount of ions generated from the ion generation source (for example, the positive ion generation unit 210 and the negative ion generation unit 220 in FIG. 1), the shortest distance between the ion generation source and each ion sensor 1a, 1b, and each ion sensor 1a. If the correlation between the voltage value of the voltage signal 1b and the light emission number of the light emitting elements 31 and 32 is preliminarily converted into data (eg, creation of a data table), the user can change The amount of ions detected in at least one of the ion sensors 1a and 1b can be estimated more accurately.

  The ion checker 100 further includes a light control unit 5 that performs light emission control of the light emitting unit 3. At least one of the first light emitting element 31 and the second light emitting element 32 is plural, and the light control unit 5 includes: If there are a plurality of first light emitting elements 31, the number of light emission of the first light emitting element 31 is controlled based on the voltage value of at least one of the first voltage signal and the second voltage signal. If there are a plurality of light emitting elements, the number of light emission of the second light emitting element 32 is controlled based on the voltage value of at least one of the third voltage signal and the fourth voltage signal.

  According to this configuration, the degree of the amount of ions detected by one of the first ion sensor 1a and the second ion sensor 1b (that is, the amount of ions in the vicinity of the ion generator 200) is determined according to the number of light emitted from the light emitting elements 31 and 32. The degree of ion amount detected by the other can be notified at the same time.

Further, according to the present embodiment, the ion checker 100 detects ions (for example, H ⁺ (H ₂ O) m and O ₂ ⁻ (H ₂ O) n) in the vicinity of the ion generator 200 and detects the ions. The ion sensor 1 that outputs a voltage signal based on the detection result, the light emitting unit 3 having a plurality of light emitting elements 31 and 32, and the light control unit 5 that performs light emission control of the light emitting unit 3, the light control unit 5 includes: Based on the voltage value of the voltage signal, the number of light emission of the light emitting elements 31 and 32 is controlled.

According to this configuration, the ion checker 100 can detect ions (for example, H ⁺ (H ₂ O) m and O ₂ ⁻ (H ₂ O) n) in the vicinity of the ion generator 200 with the ion sensor 1, and can detect the detection. Can be notified by light emission. That is, the ion checker 100 can detect ions in the vicinity of the ion generator 200 with a simple configuration and can notify the detection result using the light emitting unit 3. Therefore, the ion checker 100 can easily detect ions in the vicinity of the ion generator 200 with a small and low-cost apparatus.

  Further, the number of light emission of the light emitting elements 31 and 32 is controlled based on the voltage value of the voltage signal output from the ion sensor 1. Therefore, the degree of the amount of ions detected by the ion sensor 1 (that is, the amount of ions in the vicinity of the ion generator 200) can be notified by the number of light emission elements 31 and 32. Further, the amount of ions generated from the ion generation source (for example, the positive ion generation unit 210 and the negative ion generation unit 220 in FIG. 1), the shortest distance between the ion generation source and the ion sensor 1, and the voltage signal of the ion sensor 1 If the correlation between the voltage value and the light emission number of the light emitting elements 31 and 32 is converted into data in advance (eg, creation of a data table), the user is detected by the ion sensor 1 based on the light emission number of the light emitting elements 31 and 32. The amount of ions can be estimated more accurately.

In the ion checker 100 described above, the light emitting elements 31 and 32 include the first light emitting element 31 that emits light when the ion sensor 1 detects positive ions (for example, H ⁺ (H ₂ O) m), and the ion sensor 1. Includes a second light emitting element 32 that emits light when negative ions (for example, O ₂ ⁻ (H ₂ O) n) are detected.

According to this configuration, detection of positive ions (for example, H ⁺ (H ₂ O) m) by the ion sensor 1 can be notified by the light emission of the first light emitting element 31, and the ion sensor 1 can be notified by the light emission of the second light emitting element 32. Of negative ions (for example, O ₂ ⁻ (H ₂ O) n) can be notified. That is, the type of ions detected by the ion sensor 1 can be notified.

  Alternatively, the ion checker 100 includes a plurality of ion sensors 1 and the light emitting elements 31 and 32 include a plurality of third light emitting elements 31 and 32 associated with the respective ion sensors 1a and 1b. The third light emitting elements 31 and 32 are configured to emit light when the associated ion sensors 1a and 1b detect ions.

According to this configuration, the third sensors associated with the ion sensors 1a and 1b that detect ions (for example, H ⁺ (H ₂ O) m and O ₂ ⁻ (H ₂ O) n) in the vicinity of the ion generator 200 are used. The light emitting elements 31 and 32 can emit light. Therefore, it can be notified which ion sensor 1a, 1b has detected the ion of the ion generator 200 vicinity.

<Third Embodiment>
Next, a third embodiment will be described. In the third embodiment, the ion checker 100 further includes a hook 9a, and the hook 9a can be detachably attached to a detection inspection target. Hereinafter, a configuration different from the first and second embodiments will be described. Moreover, the same code | symbol is attached | subjected to the component similar to 1st and 2nd embodiment, and the description may be abbreviate | omitted.

  6A and 6B are schematic views illustrating a configuration example of the ion checker 100 according to the third embodiment. FIG. 6A is a top view of the ion checker 100 according to the third embodiment. FIG. 6B is a side view of the ion checker 100 according to the third embodiment. In addition to the ion sensor 1 and the light emitting unit 3, the ion checker 100 further includes a housing 9 having a hook 9a. The ion sensor 1 and the light emitting unit 3 are mounted on a housing 9. For example, the voltage generation unit 12 and the connector T of each ion sensor 1, the light emitting unit 3, the connection wiring of the connector T and the light emitting unit 3, and the like are provided on the upper surface of the housing 9. Further, the electrode E and the hook 9 a of each ion sensor 1 are provided on the back surface of the housing 9.

  The hook 9a is an attachment member that can removably attach the ion checker 100 to an inspection target (for example, the ion cluster 200 in FIG. 1). 7A and 7B are a top view and a side view of the ion checker 100 attached to the cluster ions 200, respectively. For example, the cover 230 of the cluster unit 200 is provided with a grid-like cover frame 231. 7A and 7B, the hook 9a is hooked on the cover frame 231. In this way, the ion checker 100 can be attached to the cluster unit 200 with a simple structure. If the ion checker 100 is attached to the cluster unit 200, the electrode E of each ion sensor 1 can be disposed in the vicinity of the ion outlet of the cluster unit 200 (for example, the positive ion generator 210 and the negative ion generator 220 in FIG. 1). Therefore, the ion generation of the cluster unit 200 can be easily inspected.

  In the ion checker 100 including the hook 9a, for example, when responding to a complaint in the market, the ion generation source (for example, the ion generation units 210 and 220 of the cluster unit 200 shown in FIG. 1) is defective or the transmission board is defective. This is useful in determining whether it is.

  In addition, the structure of the ion checker 100 is not limited to the above-mentioned illustration. For example, the number of LEDs 31 and 32 of the light emitting unit 3 may be plural, and the ion checker 100 may further include the light control unit 5 (see FIG. 4). Further, the attachment member provided in the ion checker 100 may be a clip or the like instead of the hook 9a, and the ion checker 100 may be attached to the ion generator 200 using the clip.

  The hooks 9a may be provided on the sensor substrate 11 of each ion sensor 1 respectively. In this case, the ion checker 100 may not include the housing 9.

  Alternatively, the ion checker 100 may individually include a first casing in which each ion sensor 1 is mounted and a second casing in which the light emitting unit 3 is mounted. In this case, the hook 9a may be provided at least in the first housing.

  As mentioned above, according to this embodiment, it is set as the structure further equipped with the attachment member 9a which can be attached to the ion generator 200. FIG.

  According to this configuration, ions in the vicinity of the ion generator 200 can be detected with the ion checker 100 attached to the ion generator 200. Therefore, the detection work is facilitated. Note that the attachment member 9a may be provided on the housing 9 of the ion checker 100, or may be provided on the sensor substrate 11 or the like.

  The embodiment of the present invention has been described above. The above-described embodiment is an exemplification, and various modifications can be made to the combination of each component and each process, and it will be understood by those skilled in the art that it is within the scope of the present invention.

  For example, in the above-described first to third embodiments, the number of ion sensors 1 included in the ion checker 100 may be one or a plurality of three or more. In this case, the light emitting unit 3 may include at least one of a light emitting element (for example, an LED) that emits light in association with detection of positive ions and / or a light emitting element that emits light in association with detection of negative ions. Moreover, the light emitting element matched with each ion sensor 1 may be included. If the number of ion sensors 1 is one, since the ion checker 100 can be made into a simple structure, manufacturing cost can be reduced. If the number of ion sensors 1 is a plurality of three or more, it is possible to detect the amount of ions generated by a plurality of ion generation sources of three or more. For example, the number of positive ion and negative ion generation sources to be inspected (for example, the cluster unit in FIG. 1) is not limited to one, but three or more ion generation sources are detected by one ion sensor 1. The structure provided in the position which separated the impossible distance is also considered. The ion checker 100 including three or more ion sensors 1 is particularly effective for such a configuration.

  In the first to third embodiments described above, the light emitting elements included in the generation unit 3 may be of the same type. Moreover, the kind of light emitting element which the generating part 3 has is not particularly limited. For example, the light emitting element may be an LED having a light emission color other than red and green (such as a blue light emitting LED) or a light emitting element other than the LED (for example, a laser diode). Note that the forward voltage threshold and the forward current threshold required for light emission differ depending on the type of the light emitting element. For example, each threshold value in the blue light emitting LED is higher than that of the red light emitting LED 31 and the green light emitting LED 32. In such a case, for example, the voltage value or current value of the voltage signal output from each ion sensor 1 is increased by decreasing the resistance value of the electric resistance R5 of the voltage generator 12 (see FIG. 2). Need to be devised.

DESCRIPTION OF SYMBOLS 100 Ion checker 1 Ion sensor 11 Sensor board 12 Voltage generation part 13 Protective electrode C1-C3 Capacitor R1-R5 Electric resistance IC1 Amplification calculator T Connector T1-T3 Terminal E, Ea, Eb Current collection electrode 3 Light emission part 31, 32 LED
5 Light controller 51 Microcomputer 52 LED driver IC
7 Mounting substrate 9 Housing 9a Hook 200 Cluster unit 210 Positive ion generator 210a First discharge electrode 210b First induction electrode 220 Negative ion generator 220a Second discharge electrode 220b Second induction electrode 230 Cover 231 Cover frame 240 Drive circuit P Power supply

Claims (5)

An ion sensor that detects ions in the vicinity of the ion generator and outputs a voltage signal based on the detection result of the ions, and a light emitting unit having a light emitting element
The ion sensor includes a first ion sensor and a second ion sensor,
The light emitting element is an ion checker that emits light based on a voltage signal output from at least one of the first ion sensor and the second ion sensor. A light control unit that performs light emission control of the light emitting unit;
The light emitting element is plural,
The said light control part controls the number of light emission of the said light emitting element based on the voltage value of the said voltage signal output from at least one of the said 1st ion sensor and the said 2nd ion sensor. Ion checker. An ion sensor that detects ions in the vicinity of the ion generator and outputs a voltage signal based on the detection result of the ions, a light emitting unit having a plurality of light emitting elements, and a light control unit that performs light emission control of the light emitting unit. ,
The light control unit is an ion checker that controls the number of light emission of the light emitting element based on a voltage value of the voltage signal.   The light emitting element includes a first light emitting element that emits light when the ion sensor detects positive ions, and a second light emitting element that emits light when the ion sensor detects negative ions. Ion checker.   The ion checker in any one of Claims 1-4 further provided with the attachment member which can be attached to the said ion generator.