WO2012026169A1 - Dispositif détecteur d'ions, air conditionné et instrument de mesure d'ions - Google Patents

Dispositif détecteur d'ions, air conditionné et instrument de mesure d'ions Download PDF

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Publication number
WO2012026169A1
WO2012026169A1 PCT/JP2011/061756 JP2011061756W WO2012026169A1 WO 2012026169 A1 WO2012026169 A1 WO 2012026169A1 JP 2011061756 W JP2011061756 W JP 2011061756W WO 2012026169 A1 WO2012026169 A1 WO 2012026169A1
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WO
WIPO (PCT)
Prior art keywords
ion
detection
temperature
heating element
substrate
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PCT/JP2011/061756
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English (en)
Japanese (ja)
Inventor
松井　裕文
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シャープ株式会社
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Publication date
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Priority to CN201190000678.XU priority Critical patent/CN203443917U/zh
Publication of WO2012026169A1 publication Critical patent/WO2012026169A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/30—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by ionisation
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01D—SEPARATION
    • B01D47/00—Separating dispersed particles from gases, air or vapours by liquid as separating agent
    • B01D47/05—Separating dispersed particles from gases, air or vapours by liquid as separating agent by condensation of the separating agent
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/192—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by electrical means, e.g. by applying electrostatic fields or high voltages
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A50/00—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE in human health protection, e.g. against extreme weather
    • Y02A50/20—Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters

Definitions

  • the present invention relates to an ion detector that detects the amount of ions in the air, and an air conditioner and an ion measuring instrument equipped with the ion detector.
  • the amount of ions (number of ions and ion concentration) measured by the ion detector is displayed on a monitor or the like to give the user a sense of security.
  • both positive and negative ions (or negative ions) generated by the ion generator are collected as electric charges by a current collector (collecting electrode), and the collected electric charges are passed through a resistor for current-voltage conversion. Since the voltage value after current-voltage conversion is small, it is amplified by an amplifier and then input to an AD converter. The value digitized by the AD converter is processed by a microcomputer or DSP to calculate the amount of ions, and the result is monitored. To display.
  • Patent Document 1 As an ion detector, for example, a device that simultaneously measures positive and negative ions (see Patent Document 1) is known. As a display method of the monitor, a method for displaying numerical values (see Patent Document 2) and a method for displaying an image representing a design or landscape corresponding to the ion concentration (see Patent Document 3) are known.
  • the current value is about pA (picoampere) to nA (nanoampere).
  • a resistance for converting the current value into a voltage suitable for the input of the AD converter a high resistance value of several giga to several tens of giga ohm is required.
  • the present invention has been made in view of the above-described circumstances, and an ion detection device capable of avoiding malfunctions under high humidity conditions by simple means, an air conditioner equipped with the ion detection device, and An object is to provide an ion measuring instrument.
  • An ion detection apparatus includes a collection electrode that collects ions in the air, and a measurement unit that measures a potential of the collection electrode, and increases the temperature of the measurement unit.
  • a temperature raising means is provided.
  • the temperature of the measuring unit that measures the potential of the collecting electrode that collects ions in the air is raised.
  • the electric potential of the collecting electrode is measured by flowing the charge due to the ions collected by the collecting electrode to the resistance provided in the measuring section under high humidity environmental conditions, the water generated on the surface of the resistance Since the layer evaporates due to the temperature rise, and the relative humidity decreases due to the temperature rise, it becomes difficult to generate a water layer on the surface of the resistor, so the leakage current is reduced and the resistance drop is suppressed. It is possible to obtain an accurate ion amount based on the potential of the collecting electrode.
  • the ion detector according to the present invention is characterized in that the measurement unit is provided on a substrate, and the temperature raising means is a heating element provided on the substrate.
  • the measurement unit and the heating element are provided on the same substrate, when the heating element is heated, the heat generated in the heating element is transmitted to the substrate and is conducted from the substrate to the measurement unit, and the temperature of the measurement unit raising the.
  • the heating element is a resistor installed on the substrate and generating heat when energized.
  • the heat generated by the resistor is transmitted to the substrate and is conducted from the substrate to the measurement unit.
  • the ion detector according to the present invention is characterized in that the heating element is a resistance pattern formed on the surface of the substrate and generating heat when energized.
  • the heating element is a resistance pattern formed on the surface of the substrate and generating heat when energized.
  • the ion detector according to the present invention is characterized in that the collecting electrode is provided on one surface of the substrate, and the measuring section and the heating element are provided on the other surface.
  • the measurement unit and the heating element are provided on the surface opposite to the substrate surface provided with the collection electrode, the measurement unit and the heating element are used when collecting ions in the air with the collection electrode. Therefore, the heat of the heating element can be efficiently conducted to the measurement unit provided on the same substrate surface.
  • the ion detector according to the present invention is characterized in that the measurement unit is provided on a substrate, and the temperature raising means is a heating element installed at a position separated from the substrate.
  • the temperature of the measurement unit rises due to the radiant heat generated by the heating element.
  • An ion detection apparatus includes a temperature detection unit that detects a temperature of the measurement unit, and a control unit that performs heat generation control of the heating element based on a detection result of the temperature detection unit. to.
  • the heat generation control of the heating element can be appropriately performed based on the temperature detection result of the measurement unit.
  • the ion detection apparatus includes an external temperature detection unit that detects a temperature outside the measurement unit, and the control unit detects a difference between a detection value of the temperature detection unit and a detection value of the external temperature detection unit.
  • the control unit detects a difference between a detection value of the temperature detection unit and a detection value of the external temperature detection unit.
  • the measurement unit when the difference between the temperature of the measurement unit and the external temperature is small, the measurement unit is not sufficiently heated, so the heating element is heated, and the difference between the temperature of the measurement unit and the external temperature is If it is larger, the temperature of the measuring part has risen sufficiently, so that the heat generation of the heating element is stopped and unnecessary heat generation is prevented.
  • the control means controls the heat generation of the heating element so that the difference between the detection value of the temperature detection means and the detection value of the external temperature detection means is in the range of 5 ° C to 25 ° C. and performing.
  • the control means controls the heat generation of the heating element so that the difference between the temperature of the measurement unit and the external temperature, that is, the temperature rise is maintained in the range of 5 ° C to 25 ° C.
  • a relative humidity environment of 70% or less, which is preferable for performing an ion detection operation with an appropriate humidity can be realized.
  • the ion detection apparatus includes a humidity detection unit that detects humidity around the measurement unit, and a control unit that performs heat generation control of the heating element based on a detection result of the humidity detection unit. the features.
  • the heat generation control of the heating element can be appropriately performed based on the detection result of the humidity around the measurement unit.
  • the control unit causes the heating element to generate heat when the detection value of the humidity detection unit is larger than a set value, and the detection value of the humidity detection unit is smaller than the set value.
  • the heat generation of the heating element is stopped.
  • the heating element under a high humidity condition where the humidity around the measurement unit is larger than the set value, the water layer generated on the surface of the resistor provided in the measurement unit is evaporated, and the humidity around the measurement unit is reduced.
  • the heating element is heated, and under low humidity conditions where the humidity around the measurement unit is lower than the set value, the heating element stops heating and generates unnecessary heating. let not.
  • An air conditioner according to the present invention includes an ion generator and the ion detector.
  • ions generated by the ion generator can be detected by the ion detector.
  • the air conditioner according to the present invention includes an ion display unit that displays a detection result of the ion detector.
  • the detection result of the ions generated by the ion generator is displayed, the user can confirm the generation of ions.
  • An ion measuring instrument includes the ion detection device, and includes an ion display unit that displays a detection result of the ion detection device.
  • the detection result of ions is displayed, the user can easily confirm the state of ions to be measured.
  • an ion detector capable of avoiding a malfunction in a high humidity condition by a simple means by providing a temperature raising means for raising the temperature of the measuring section.
  • a preferred specific configuration of the temperature raising means can be obtained by providing a heating element at a position where the measurement unit is mounted or at a position separated from the substrate.
  • the temperature of the measuring unit is adjusted appropriately by performing heat generation control of the heating element based on the temperature of the measuring unit, the difference between the temperature of the measuring unit and the external temperature, or each detection result of the humidity around the measuring unit.
  • an ion detection device that can be raised to a low level.
  • an air conditioner that can be appropriately blown out together with air while reliably detecting the generation of ions.
  • an ion measuring instrument that allows a user to easily check the state of ions to be measured.
  • FIG. 2 is a side sectional view taken along line II-II in FIG. 1.
  • FIG. 3 is a plan sectional view taken along line III-III in FIG. 1. It is the figure which expanded a part of FIG. It is a figure of the circuit board provided in the ion detector which concerns on Embodiment 1 of this invention. It is a figure of the circuit board provided in the ion detector which concerns on Embodiment 1 of this invention. It is a block diagram which shows the outline
  • FIG. 1 is a front view schematically showing an air conditioner equipped with an ion detector according to Embodiment 1 of the present invention
  • FIG. 2 is a side sectional view taken along line II-II in FIG. 1, and FIG. 3 is III in FIG.
  • FIG. 4 is an enlarged view of a part of FIG. 2
  • FIGS. 5A and 5B are diagrams of a circuit board provided in the ion detector according to Embodiment 1 of the present invention
  • FIG. It is a block diagram which shows the outline
  • the air conditioner includes a vertically long rectangular parallelepiped housing 1, and the housing 1 includes a front housing 1a, a rear housing 1b, left and right side housings 1c, a bottom housing 1d, and a top housing 1e.
  • a suction port 2 for sucking outside air is provided in the lower part of the rear housing 1b, and a blower outlet 4 for blowing air to the outside is provided in the upper part of the front housing 1a.
  • a ventilation path 3 extending from the suction port 2 to the blowout port 4 is formed in the housing 1.
  • the ventilation path 3 has a rectangular cross section surrounded by a front wall 3a and a rear wall 3b arranged in parallel with a space in the front and rear direction, and left and right side walls 3f and 3f.
  • the upper end of the front wall 3a is bent forward to become the lower edge 3e of the outlet 4, the upper end of the rear wall 3b is bent forward to become the upper edge 3c of the outlet 4, and the lower end of the rear wall 3b is the rear side To be the upper edge 3d of the suction port 2.
  • a fan 5 that sucks air from the suction port 2 and generates an upward wind flow is installed in the lower part of the ventilation path 3.
  • the front wall 3 a is provided with an ion generator 6 above the fan 5 and an ion detector 7 above the ion generator 6.
  • the fan 5 may be provided at the upper or lower intermediate portion or the upper portion in the ventilation passage 3, and the ion generation unit 6 and the ion detection unit 7 may be installed below the fan 5.
  • the ion generator 6 generates positive and negative ions or negative ions by applying a high voltage between the annular electrode and the needle electrode located at the center thereof, and supplies the positive and negative ions to the ventilation path 3 (see FIG. 4 for negative ions). Is shown).
  • the ion detection part 7 detects the ion which generate
  • the ion detector 7 has a sensor substrate 8 arranged in parallel with the front wall 3a.
  • the sensor substrate 8 may not be parallel to the front wall 3a.
  • the sensor substrate 8 forms a current collecting electrode 9 serving as a current collecting portion on the current collecting surface 8a on the ventilation path 3 side, and measures the potential of the current collecting electrode 9 on the component surface 8b opposite to the current collecting surface 8a.
  • a measuring unit 11 is mounted.
  • the collecting electrode 9 is formed as a substantially rectangular pattern, and is electrically connected to the electrode 9b on the component surface 8b through the through hole 9a.
  • 5A is a plan view of the component surface 8b
  • FIG. 5B is a current collecting surface 8a.
  • the electrode 9 b is connected to the input terminal of the amplifier 13 and grounded through a resistor 12 having a high resistance value (about gigaohm).
  • the current collecting electrode 9 may have a pattern other than a substantially rectangular shape as long as an area for collecting necessary charges can be secured. 5A and 5B, detailed circuit patterns and connection states of the measuring unit 11 are omitted.
  • the output of the amplifier 13 is input as a sensor output to an AD converter 14 provided on a substrate (not shown) different from the sensor substrate 8, and the output of the AD converter 14 is input to the microcomputer / DSP 15.
  • a monitor 16 for displaying the processing result in the microcomputer / DSP 15 is provided.
  • the board on which the AD converter 14 and the microcomputer / DSP 15 are mounted is installed in the housing 1, and the monitor 16 is provided on the front side of the front housing 1a or the upper surface of the top housing 1e.
  • FIG. 7 is a flowchart showing an outline of the ion detection process
  • FIG. 8 is a graph showing an example of an ion detection waveform.
  • the output of the amplifier 13 is converted to a digital value by the AD converter 14 and then digitally processed by the microcomputer / DSP 15 to detect the amount and polarity of ions.
  • the processing result (the amount and polarity of ions) of the microcomputer / DSP 15 is displayed on the monitor 16.
  • the monitor display As the monitor display, the number of LEDs, the luminance, or the digital value is changed to display the ion amount. Further, based on the detection result of the ion generation amount, a warning can be given when the ion generation amount is not sufficient.
  • FIG. 8 shows an example of the output voltage (before AD conversion) of the amplifier 13 when negative ions are detected. If no ions are generated, the voltage is in the vicinity of the reference voltage. When the generation of ions starts, the voltage changes according to the polarity and amount of ions (in the example shown, negative ions are detected and the reference voltage is negative). Then, the polarity and amount of ions can be measured from the change direction and value.
  • the component surface 8b of the sensor substrate 8 is provided with a resistor (chip resistor) 10 that generates heat when energized.
  • the two terminals of the resistor 10 are basically connected to a power source (for example, 5V) at one terminal and to a ground (for example, 0V) at the other terminal.
  • a voltage having a necessary potential difference generated by a transistor or the like from a power source may be applied to the two terminals of the resistor 10.
  • the heat generated by energizing the resistor 10 is transmitted to the substrate 8 and raises the temperature of the measuring unit 11 mounted on the same substrate 8.
  • At least one resistor 10 for heating (preferably near the resistor 12) is installed on the component surface 8b. If a desired temperature rise is obtained, the resistance 10 may be one, or may be installed at a plurality of locations to realize a desired temperature rise. In addition, when the resistance 10 for heating is installed in the current collection surface 8a, since there exists a possibility that the ion which should be collected by the collection electrode 9 with which the current collection surface 8a was equipped may flow into the electrode part of the resistance 10, resistance Although 10 is installed on the component surface 8b, the resistor 10 may be installed on the current collecting surface 8a.
  • FIG. 9 is a chart showing the effect of reducing the relative humidity due to the temperature rise.
  • the relative humidity when the temperature is increased by 5 ° C., 10 ° C., 15 ° C., and 20 ° C. is shown for each value of the initial temperature and the relative humidity. For example, when the initial temperature and the relative humidity are 10 ° C./100%, the relative humidity becomes about 53% when the temperature rises by 10 ° C., and the relative humidity becomes 30% when the temperature rises by 20 ° C.
  • a humidity sensor is provided to measure the humidity, and when the relative humidity is 70% or more, a process for correcting the measured ion quantity is performed to obtain the ion quantity, or the correction process is not performed.
  • the relative humidity is 70% or more
  • a process for correcting the measured ion quantity is performed to obtain the ion quantity, or the correction process is not performed.
  • the progress of deterioration of other mounted parts is predicted due to the temperature rise of the sensor substrate 8. For example, if the temperature rises to 10 ° C., the life of the component may deteriorate to about 1 ⁇ 2, and if the temperature rises to 20 ° C., it may deteriorate to about 1 ⁇ 4. Therefore, it is necessary to select a part in consideration of the part life due to temperature rise.
  • the resistance value of the resistor 10 is determined so as to satisfy the electric power necessary for increasing the temperature of the sensor substrate 8 (for example, 10 ° C.) as described above.
  • the physical property values of the substrate 8 in the case of a glass / epoxy substrate, specific gravity (2 [g / cm 3 ]) and specific heat (0.42 [cal / g ° C.]) are used in the calculation.
  • the amount of heat for raising the surface of the 2 cm ⁇ 2 cm glass / epoxy substrate 0.01 cm by 10 ° C. is (2 ⁇ 2 ⁇ 0.01) [cm 3 ] ⁇ 2 [g / cm 3 ] ⁇ 0.42 [cal / g ⁇ ° C.] ⁇ 10 [° C.
  • the temperature rise characteristics may change due to the ratio of the metal pattern on the board, component placement conditions, heat dissipation to the air due to the wind, etc., and correction is necessary according to the actual conditions. it is.
  • the temperature increase range of the sensor substrate 8 is increased by 5 ° C. from 5 ° C. to 25 ° C.
  • FIG. 10A is a plan view of the component surface 8b
  • FIG. 10B shows that at least one portion of the resistance pattern 20 for heat generation is formed on the sensor substrate 8 which is the current collecting surface 8a.
  • the resistance pattern 20 is preferably installed on the component surface 8b, but may be installed on the current collecting surface 8a. When a constant current is passed through the resistance pattern 20, the resistance pattern 20 generates heat, and the temperature of the sensor substrate 8 is increased by heat conduction.
  • FIG. 11 is an enlarged cross-sectional view of a part of an air conditioner equipped with an ion detector according to Embodiment 3 of the present invention.
  • a heating resistor 21 is installed not at the sensor substrate 8 but at a position facing the substrate surface of the sensor substrate 8 with a gap. There may be at least one resistor 21 or a plurality of resistors 21 as shown in the figure.
  • the support member that supports the resistor 21 is omitted. By flowing a constant current through the resistor 21, the resistor 21 generates heat, and the temperature of the sensor substrate 8 is raised by radiant heat.
  • FIG. 12 is an enlarged cross-sectional view of a part of an air conditioner equipped with an ion detector according to Embodiment 4 of the present invention.
  • a single heater 22 is installed not at the sensor substrate 8 but at a position facing the substrate surface of the sensor substrate 8 with a gap. There may be at least one heater 22 or a plurality of heaters 22 as shown in the figure.
  • a support member that supports the heater 22 is omitted. The heater 22 generates heat, and the temperature of the sensor substrate 8 is increased by radiant heat.
  • FIG. 13 is an enlarged cross-sectional view of a part of an air conditioner including an ion detector according to Embodiment 5 of the present invention
  • FIG. 14 is a block diagram of a heat generation control configuration of the ion detector according to Embodiment 5 of the present invention. it is a diagram.
  • Two thermistors (temperature sensors) 23a and 23b are used, and one thermistor 23a is placed in contact with the sensor substrate 8 or separated from the sensor substrate 8 with a small gap to detect the temperature of the sensor substrate 8.
  • the other one thermistor 23b is installed in the ventilation path 3 away from the sensor board 8 or outside the ventilation path 3 (for example, at the front side of the front wall 3a) to detect the temperature around the sensor board 8.
  • two resistors 10 are provided.
  • a heat generation control unit 24 composed of a microcomputer or the like is provided. Detection signals of the thermistors 23 a and 23 b are input to the heat generation control unit 24, and a current drive signal for the resistor 10 is output from the heat generation control unit 24.
  • the temperature rise of the sensor substrate 8 is detected from the difference in temperature detected by the two thermistors 23a and 23b.
  • the resistor 10 is driven at a constant current, and the temperature rise is 5 ° C.
  • the current value for driving the resistor 10 is increased to increase the energizing power, and when the temperature rise exceeds 25 ° C., the current value for driving the resistor 10 is decreased to decrease the energizing power, or the resistance
  • the current value for driving 10 is set to zero, and energization control is performed so that the temperature rises appropriately.
  • the voltage value to the resistor 10 may be controlled, or the energization time may be controlled.
  • this energization control can function as a safety device and stop energization when an abnormal temperature rise of a specified value or more is observed due to a component defect or the like.
  • the fifth embodiment can be applied to the second to fourth embodiments.
  • the energization of the resistance pattern 20 is controlled based on the detection results of the two thermistors 23a and 23b.
  • the resistor 21 is energized and controlled based on the detection results of the two thermistors 23a and 23b.
  • the heater 22 is controlled to generate heat based on the detection results of the two thermistors 23a and 23b.
  • FIG. 15 is an enlarged cross-sectional view of a part of an air conditioner including an ion detector according to Embodiment 6 of the present invention
  • FIG. 16 is a block diagram of a heat generation control configuration of the ion detector according to Embodiment 6 of the present invention. it is a diagram.
  • a humidity sensor 25 is installed on the rear wall 3b that faces the ion generator 6 across the ventilation path 3.
  • a detection signal of the humidity sensor 25 is input to the heat generation control unit 24, and a current drive signal for the resistor 10 is output from the heat generation control unit 24.
  • the installation location of the humidity sensor 25 may be any location as long as the humidity of the air flowing in the ventilation path 3 can be detected (for example, in the vicinity of the suction port 2).
  • the humidity sensor 25 detects the relative humidity in the ventilation path 3 outside the ion detector 7 and controls the current flowing through the resistor 10 according to the output of the humidity sensor 25.
  • the relative humidity is 60% or less
  • the output of the measurement unit 11 is hardly affected by the humidity. Therefore, in this embodiment, for example, when the relative humidity is 60% or less, no current flows through the resistor 10, and when the relative humidity is greater than 60%, a constant current flows through the resistor 10. Accordingly, it is possible to prevent unnecessary power consumption without flowing a current through the resistor 10 under a high humidity condition without flowing a current through the resistor 10 under a low humidity condition.
  • the sixth embodiment can also be applied to the second to fourth embodiments.
  • the energization of the resistance pattern 20 is controlled based on the detection result of the humidity sensor 25.
  • the energization of the resistor 21 is controlled based on the detection result of the humidity sensor 25.
  • the heater 22 is controlled to generate heat based on the detection result of the humidity sensor 25.
  • an air purifier, an air conditioner, a humidifier, a dehumidifier, a warm air fan, a fan, a vacuum cleaner, and a medical substance generator (ion generator) ) And the like can be realized. Briefly, air is cleaned by a filter not shown in the air cleaner, moisture is added to the air from a humidifier mechanism not shown in the humidifier, and the dehumidifier mechanism not shown in the dehumidifier is used to remove air from the air. Water is removed and the air is heated by a heater (not shown) in the hot air machine to perform air treatment for each purpose, and then the treated air is discharged from the outlet 4 together with the ions generated inside. Will be released.
  • the ion detectors according to Embodiments 1 to 6 above and the monitor that displays the amount of ions the amount and polarity of ions can be detected, and the user can know the current amount of ions generated by the monitor. Ion measuring instrument that can be realized.
  • the ion detector that measures the amount of ions in the atmosphere, the monitor that changes the display according to the output of the ion detector, the air conditioner equipped with the ion detector and the monitor, the ion
  • the ion detector is provided with a means for raising the temperature, thereby reducing the amount of moisture in the air, and lowering the relative humidity due to the temperature rise, and the ion detector under high humidity conditions. It becomes possible to avoid malfunction. Further, it is possible to eliminate the correction process using the humidity sensor value and the use of the humidity sensor as in the past.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Other Investigation Or Analysis Of Materials By Electrical Means (AREA)
  • Air Conditioning Control Device (AREA)

Abstract

Cette invention concerne un dispositif détecteur d'ions qui est capable d'utiliser un moyen simple pour éviter les dysfonctionnements dans des conditions de forte humidité. Une électrode de collecte (9) qui collecte les ions contenus dans l'air est montée sur une surface (8a) d'un substrat (8), une unité de mesure (11) qui mesure le potentiel électrique de l'électrode de collecte (9) est montée sur une autre surface (8b) du substrat (8) et une résistance (10) (chauffage) qui génère de la chaleur en profitant du passage d'un courant électrique est montée sur l'autre surface (8b) du substrat (8) pour élever la température de l'unité de mesure (11). Dans des conditions environnementales de forte humidité, si la charge due aux ions accumulés par l'électrode de collecte (9) traverse une résistance de conversion courant-tension élevée montée sur l'unité de mesure (11) et que le potentiel électrique de l'électrode de collecte (9) est mesurée, grâce à l'élévation de la température de l'unité de mesure (11), une couche d'eau qui se forme à la surface de la résistance de conversion courant-tension s'évapore, l'humidité relative chute et la formation d'une couche d'eau à la surface de la résistance est inhibée, de sorte que le courant de fuite peut être minimisé, une chute de la valeur de résistance peut être incurvée et une teneur d'ions précise peut être calculée sur la base du potentiel électrique de l'électrode de collecte (9).
PCT/JP2011/061756 2010-08-25 2011-05-23 Dispositif détecteur d'ions, air conditionné et instrument de mesure d'ions WO2012026169A1 (fr)

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JP2010188621A JP4979798B2 (ja) 2010-08-25 2010-08-25 イオン検出装置、空調機器及びイオン計測器
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US9714967B1 (en) * 2016-01-27 2017-07-25 General Electric Company Electrostatic dust and debris sensor for an engine
CN106196386A (zh) * 2016-08-29 2016-12-07 佛山市南海研明热能设备科技有限公司 一种红外线负离子发生器及红外线负离子加湿机
JPWO2019049566A1 (ja) * 2017-09-06 2020-10-29 日本碍子株式会社 微粒子検出素子及び微粒子検出器
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