JP4732271B2 - High voltage output device and ion generator using the same - Google Patents

Description

  The present invention relates to a high voltage output device that extracts a high voltage using a transformer, and an ion generator using the same. The present invention also relates to an electronic device using such an ion generator.

  Conventionally, ion generators that generate negative ions or positive ions in the atmosphere have been developed to improve health and eliminate germs in the atmosphere. These ion generators can be used as air purifiers or air conditioners. It is mounted on a vessel (air conditioner), vacuum cleaner, etc.

  The negative ion refers to a substance having a negative charge among atmospheric ions existing as a medium of electric current in the atmosphere. Many negative ions are present near waterfalls and in forests and the like, and are known to bring about a refreshing effect of mind and body (see Non-Patent Document 1). When positive ions come into contact with fine suspended matters in the atmosphere, they positively charge the substances, so they may be used for dust collection. Further, when generating ions, ozone is generated by increasing the applied voltage. It is known that ozone has a bactericidal action.

  For example, Patent Document 1 below discloses a negative ion generator. FIG. 15 shows a circuit diagram of a high voltage generation circuit in the negative ion generator described in Patent Document 1.

  In the circuit shown in FIG. 15, the transistors Q1 and Q2 are switched by the output of the oscillation circuit MV using a DC power source as an operation source, and the primary current of the pulse transformer PT is intermittently connected. The high voltage generated in the secondary coil N2 is amplified by the voltage doubler rectifier circuit. Corona discharge occurs at the tip of the negative discharge electrode to which a negative high voltage obtained by voltage amplification is applied, and negative ions are generated. The voltage waveform that has passed through the voltage doubler rectifier circuit becomes a negative pulsating output that attenuates following the minus pulse.

In the configuration shown in FIG. 15, high voltage noise from the secondary coil output to the oscillation circuit MV is suppressed by inserting a forward diode in series with the primary coil N1. In addition, the useless current consumed during the pulse pause period due to noise is suppressed to reduce the power consumption, and the power source life in battery driving is extended.
Japanese Patent Laid-Open No. 2004-31158 "Development of low voltage drive ion generator" (URL: http://www.murata.co.jp/ninfo/articles/nr04a2.html Search on November 22, 2005)

  In order to generate negative ions, it is necessary to apply a high voltage to an ion generating element such as an electrode. In the conventional circuit represented by FIG. 15, a winding transformer is used, and the transistors Q1 and Q2 are switched by the output of the oscillation circuit MV using a DC power source as an operation source to generate the primary current of the pulse transformer PT. Intermittently, a magnetic field change is generated inside the pulse transformer PT. A high voltage alternating current proportional to the turn ratio of the primary side coil N1 and the secondary side coil N2 is generated on the secondary side of the pulse transformer PT.

When a winding transformer is used, an output voltage proportional to the coil turns ratio can be obtained. For example, by increasing the turn ratio to about 1: 100, a high voltage necessary for ion generation can be obtained. is there. However, when there is a capacitive load such as an ion generating element on the secondary side of the transformer, if the load capacitance is C, the inductance viewed from the secondary side of the transformer is L, and the resonance frequency is f,

Is present on the secondary side of the transformer, and the secondary side resonant frequency of the pulse transformer differs from the frequency of the AC voltage input to the pulse transformer PT, that is, the output frequency of the oscillation circuit MV. In this case, there is a problem that the output voltage on the secondary side of the pulse transformer PT is lowered, and the efficiency of the circuit is lowered.

  The output frequency of the oscillation circuit MV and the resonance frequency on the secondary side of the pulse transformer PT are the component constant variation during manufacturing, the change of the component constant with time, the change of ambient temperature and humidity as the environment changes, and the surrounding conductors Due to the change in the capacitance of the ion generating element that changes when approaching, the design value deviates. Hereinafter, the relationship between the deviation of the output frequency of the oscillation circuit MV and the resonance frequency on the secondary side of the pulse transformer PT and the output voltage (voltage applied to the ion generating element) will be described.

The problem that the output voltage decreases becomes more prominent as L increases and C decreases.
The bandwidth where the output voltage drops to 1 / √2 of the maximum value is BW, the capacitance of the load is C, the inductance viewed from the secondary side of the transformer is L, the resistance component of the load is R, the resonance frequency is f, the resonance circuit If the quality factor is Q,
It is generally known that

  BW decreases as Q increases. That is, as L is larger and C is smaller, the bandwidth in which a high voltage is output is narrowed, and the output voltage is lowered even if the output frequency of the primary oscillation circuit MV is slightly deviated from the secondary resonance frequency of the transformer. In other words, there is a problem that the efficiency is lowered.

  In particular, when trying to obtain a high voltage with a transformer, the number of turns of the coil on the secondary side of the transformer increases, so that the L becomes large, and the problem of a decrease in output voltage due to a frequency shift becomes significant. For example, when the output voltage is reduced to 1 / √2 times, the power is reduced to ½, and the efficiency is reduced by 50%.

  A circuit diagram modeling the secondary side of the transformer is shown in FIG. In FIG. 5, Vac is a 12V AC signal source, T is a transformer, Cz is a load capacitance, Rs is a resistance component of the load, and TP is an output voltage measurement point.

  FIG. 3 shows frequency-output voltage characteristics at TP in FIG. FIG. 3 shows, as an example, an output voltage when the self-inductance on the secondary side of the transformer in FIG. 5 is 230 mH (millihenry), the load capacitance is 10 pF (picofarad), and the load resistance component is 1280 Ω (ohms). It is a characteristic. The horizontal axis represents the AC frequency of the 12V AC signal source Vac in FIG. 5, and the vertical axis represents the voltage at the output voltage measurement point TP in FIG.

  From this graph, the resonance frequency in the circuit of FIG. 5 is 95 kHz. When an AC signal of 95 kHz at 12 V is input to the primary side of the transformer, an output of approximately 4.7 kV is obtained at the output voltage measurement point TP, but when the frequency is shifted by 2 kHz, the voltage of the TP becomes approximately 3.3 kV. In terms of electric power, it is reduced by 50%, and there is a problem that the amount of ion generation is reduced to half or less.

  As a solution to such a problem, an ion generator employing a self-excited oscillation circuit can be considered. FIG. 14 shows a schematic configuration of such an ion generator. As shown in the figure, this circuit forms an oscillation circuit in a closed circuit including a voltage amplification unit, a transformer, and a step-down means.

  More specifically, on the secondary side of the transformer, a resonance circuit is formed by the secondary coil of the transformer and the ion generating element (capacitive load), and as a result, only the voltage near the resonance frequency is not cut. Is fed back to the voltage amplifier. Further, the voltage fed back is amplified, input to the primary coil of the transformer, and output from the secondary coil to form an oscillation circuit. As a result, the input voltage to the transformer is stabilized near the resonance frequency of the resonance circuit on the secondary side of the transformer.

  However, in order for the oscillation circuit in this self-excited circuit to oscillate, it is a necessary condition that positive feedback is applied to the oscillation circuit system. For this reason, the primary and secondary coils of the transformer must be connected to the oscillation circuit system. It must be wound in a direction that requires positive feedback. This is because there is a case where there is no phase difference between the primary side and the secondary side, and a case where a phase difference of 180 degrees occurs (the phase is inverted) depending on the winding direction of both the coils.

  However, in the product manufacturing process, for example, by changing product specifications or changing the supplier of transformer parts, the transformer specifications may be changed from those that do not produce a phase difference to those that produce a phase difference, or vice versa. There may be a case in which it is unavoidable to change from a phase difference to a phase difference that does not occur.

  On the other hand, it is not preferable from the viewpoint of product cost to provide a separate product (ion generator) pattern so as to form an oscillation circuit in accordance with the change in specifications of the transformer. Even if this is done, it is also assumed that a transformer that does not form an oscillation circuit by mistake is incorporated into a product (ion generator).

  The winding direction of the coil of the transformer cannot be easily changed due to problems such as restrictions on the coil winding machine, withstand voltage of the transformer, and the structure of the transformer. Therefore, in order to change the winding direction of the coil in the transformer, it is necessary to change the substrate pattern, change the circuit, and the like.

  In view of the above problems, the present invention has an object to provide a high-voltage output device capable of forming an oscillation circuit including a transformer regardless of the winding direction of the transformer, and an ion generator using the same. And It is another object of the present invention to provide an electronic device using such an ion generator.

  In order to achieve the above object, a high voltage output device according to the present invention includes a transformer that amplifies a voltage input to a primary coil and outputs the amplified voltage from a secondary coil, and a feedback circuit that feeds back the output voltage. A voltage amplification circuit that amplifies the fed back voltage and outputs the amplified voltage to the primary coil, and an oscillation circuit is formed by a closed circuit including the transformer, the feedback circuit, and the voltage amplification circuit. And a high-voltage output device for taking out the output voltage from the secondary side coil, which shifts the phase of the input voltage and outputs the same, and the phase of the input voltage and the output voltage of the transformer are the same. A first state that performs the shift so that the feedback voltage is positive feedback in the case of phase; and the input voltage of the transformer; A phase shift circuit that can be switched to any one of the second states in which the shift is performed so that the voltage fed back becomes a positive feedback when the phase with the force voltage is in an opposite phase; Provided configuration (first configuration).

  According to this configuration, since the phase shift circuit that can be switched between the first state and the second state is provided, feedback is performed regardless of the phase characteristics of the transformer by appropriately performing this switching. Can be positive feedback. As a result, oscillation can be caused regardless of the winding direction in the transformer.

  As for the timing of this switching, for example, the switching is periodically executed regardless of the winding direction of the transformer to provide a period during which the voltage fed back becomes positive feedback, or the winding direction of the transformer ( Alternatively, it may be possible to detect a phase difference in the input / output of the transformer and execute switching in accordance with this. The “shift” of the phase here includes a case where the phase is shifted by 0 ° (the phase is not changed).

  In the first configuration, for example, more specifically, the phase shift circuit includes a phase inversion circuit that inverts the phase of the voltage, and outputs an input voltage via the phase inversion circuit; In addition, a configuration (second configuration) that can be switched to any one of a state of outputting without passing through the phase inverting circuit may be adopted.

  According to this configuration, for example, a route that passes through a general-purpose phase inversion circuit and a route that does not pass through are provided, and these are switched selectively so that a phase shift circuit can be easily realized. Also, the transformer is usually either one whose phase does not vary (the phase varies by 0 °) or one whose phase reverses (the phase varies by 180 °) depending on the state of the winding direction. Therefore, in the above closed circuit, as long as there is no special phase fluctuation factor other than the transformer, oscillation can be caused by the phase shift circuit of this configuration (the one that shifts the phase by 0 ° or 180 °). .

  In the first or second configuration, the feedback circuit includes a step-down circuit that steps down the output voltage, and feeds back the voltage stepped down by the step-down circuit. A configuration (third configuration) may be employed in which the output voltage is stepped down so as to be within the range of the input allowable voltage of the amplifier circuit. According to this configuration, it is possible to avoid the problem that the voltage amplifier circuit is damaged by the fed back high voltage.

  In the third configuration, the step-down circuit includes a first resistance element and a second resistance element, and the voltage between both terminals of the secondary coil is determined using the first resistance element and the second resistance element. The output voltage may be stepped down by dividing the output voltage (fourth configuration). By using the resistance element in this way, a circuit for dividing the voltage between both terminals of the secondary coil can be made relatively small.

  In the third configuration, the step-down circuit includes a first capacitive element and a second capacitive element, and the voltage between both terminals of the secondary coil is determined using the first capacitive element and the second capacitive element. Alternatively, the output voltage may be reduced to reduce the output voltage (fifth configuration). By using the capacitive element in this manner, a circuit for dividing the voltage between both terminals of the secondary coil can be made to have a relatively high breakdown voltage.

  In any one of the first to fifth configurations, the oscillation circuit is a self-excited oscillation circuit that starts transiently from a transient voltage that is generated transiently when power supply to the voltage amplification circuit is started. A configuration (sixth configuration) including transient voltage amplification means for amplifying the voltage may be used.

  It is generally known that when power supply is started to a voltage amplifier circuit such as an operational amplifier, a transient voltage (transient voltage) is generated due to the influence of the change at that time. Therefore, according to the present configuration, it becomes possible to start the oscillation circuit from starting from the transient voltage (to be a self-excited oscillation circuit). Therefore, it is not necessary to provide a process for starting oscillation separately from the power supply, and the configuration of the high voltage output device can be simplified. Further, since the transient voltage amplifying means is provided, it is possible to avoid as much as possible the problem that oscillation does not start because the transient voltage is very small.

  The high-voltage output device according to any one of the first to sixth configurations, and an ion generating element that generates ions and / or ozone from the air using the output voltage of the high-voltage output device. It is good also as an ion generator of composition (seventh composition).

  According to this configuration, in order to generate ions and / or ozone from the air, the output voltage efficiently obtained by the high voltage output device according to any one of the first to sixth configurations can be used. . Therefore, ions and / or ozone can be generated relatively easily.

  In the seventh configuration, the switching unit that switches the voltage amplification factor in the voltage amplification circuit, and the output voltage is switched through the switching of the voltage amplification factor, so that ions and / or ozone in the ion generation element can be switched. It is good also as a structure (8th structure) provided with the control means which controls the generation amount.

  According to this configuration, the output voltage of the high-voltage output device is switched by switching the voltage amplification factor in the voltage amplification circuit, and the amount of ions and ozone generated is between the electrodes arranged via the air. Depends on the voltage. Therefore, the amount of ions and / or ozone generated can be easily controlled, and a highly versatile ion generator can be realized by executing such control according to the situation at that time.

  In the eighth configuration, the control device is an ion generator for generating ions and ozone, and includes a control status setting unit for alternatively setting a control status in the control unit from at least four operation modes. The four operation modes include a first operation mode for generating ions without generating ozone, a second operation mode for generating ozone by less than a predetermined amount, and a third operation for generating ozone by a predetermined amount or more. A configuration (the ninth configuration) including the mode and a fourth operation mode in which neither ion nor ozone is generated may be used.

  According to this configuration, since the control status can be set alternatively from at least four operation modes by the control status setting means, it is easier to generate ions and / or ozone according to the current status. It becomes possible to do.

  An electronic apparatus including the ion generator according to any one of the seventh to ninth configurations, wherein ions and / or ozone generated by the ion generator are combined with a part or all of the electronic apparatus. It is good also as an electronic device of the structure (10th structure) provided with the ion induction | guidance | derivation means which guides so that it may contact.

  According to this configuration, ions and / or ozone having a dust removing action or a sterilizing / sterilizing action can be generated, and these can be induced to come into contact with a part or all of the electronic device. Therefore, the electronic device can be sterilized and sterilized, and thus the electronic device can be kept hygienic.

  Further, in the tenth configuration, a contact type information input unit for inputting information by direct contact with a person is provided, and the ion guiding unit guides the ions and / or ozone to the contact type information input unit. It is good also as a structure (11th structure) to do.

  According to this configuration, it is possible to provide an electronic device that allows a person to directly contact and input information through the contact information input unit, and guide ions and / or ozone to the contact information input unit. Dust removal or sterilization / sterilization can be performed. For this reason, it is possible to provide an electronic device that is highly convenient for the user and is excellent in terms of hygiene.

  Further, as the eleventh configuration, more specifically, the contact-type information input unit includes at least one of a device for inputting biometric information; and a key for performing key operation (a twelfth configuration). The structure etc. which can be considered.

  Further, in the eleventh or twelfth configuration, a housing having the contact information input unit is provided, and the housing is configured to freely seal and open a space in contact with the contact information input unit. The ion guiding means may be configured to guide the ions and / or ozone to the space when the space is sealed (a thirteenth configuration).

  According to this configuration, when the space in contact with the contact-type information input unit is sealed, sterilization is efficiently performed by guiding ions and / or ozone into the space, and when the space is open, the contact is made. The user can easily input information through the type information input unit.

  In the eleventh or twelfth configuration, the first casing having the first outer surface, the second casing having the second outer surface, and the first casing and the second casing are rotatably connected. A foldable electronic device that is foldable in a state in which the first outer surface and the second outer surface are substantially opposed to each other through the rotation, and is provided on the first outer surface or the second outer surface. The contact-type information input unit is provided in a portion sandwiched between the two housings in the folded state, and the ion guiding means is sandwiched between the two housings in the folded state. It is good also as a structure (14th structure) which guide | induces the said ion and / or ozone in the space to be carried out.

  According to this configuration, since the contact-type information input unit is folded between both housings in a folded state, the electronic device is a foldable type electronic device, which is very convenient, for example, as a mobile phone. Further, ions and / or ozone are induced in a space sandwiched between both housings in a folded state (at least because they are partitioned by both housings and thus have higher sealing performance than a completely open space). Therefore, it is possible to efficiently remove dust or sterilize / sterilize the contact information input unit.

  Further, in the fourteenth configuration, in the folded state, a substantially sealed space is formed in a portion sandwiched between the two housings, and the contact-type information input unit is in contact with the substantially sealed space. The ion guide means may be configured to guide ions and / or ozone to the substantially sealed space (fifteenth configuration).

  According to this configuration, in the folded state, the contact-type information input unit is in contact with the substantially sealed space, and ions and / or ozone are induced in the space. Dust removal or sterilization / sterilization can be performed.

  The “substantially sealed space” here is not necessarily limited to a completely sealed space, and even if a small leak hole or the like exists, the space can be filled with ions or ozone. Anything is possible as long as it is possible.

  More specifically, for example, the first outer surface or the second outer surface is provided with a protrusion made of rubber, and the substantially sealed space has the first outer surface and the second outer surface as both bottom surfaces, It is good also as a structure (16th structure) which is formed by using this protrusion part and / or the said hinge part as a side surface.

  As a cushioning material, it is possible to further improve the sealing degree of the substantially sealed space by providing the rubber protrusion, and to prevent both housings from contacting and scratching when folded. It can also be used.

  In any one of the fourteenth to sixteenth configurations, the ion guiding unit includes an ion jet port for jetting the ions and / or ozone on the first outer surface, and the contact-type input unit includes: It is good also as a structure (17th structure) provided on the said 2nd outer surface in the position facing the said ion ejection port in the said folded state.

  In this configuration, ions and / or ozone can be easily guided in the ejection direction through the ion ejection port. Further, the contact-type information input unit is provided at a position facing the ion ejection port in a folded state. For this reason, it becomes possible to efficiently bring ions and / or ozone into contact with the contact-type information input unit by using the momentum of the eruption. As a result, dust removal and sterilization / sterilization of the contact-type information input unit can be performed more efficiently. Can be done well.

  Further, the ion generator having the configuration according to any one of the seventh to ninth aspects described above, and a container for storing an object in a substantially hermetically sealed state, wherein ions generated by the ion generator and / or It is good also as a container of the structure (18th structure) which discharge | releases ozone in this inside.

  According to the container of this configuration, ions and / or ozone can be efficiently brought into contact with an object housed inside, and as a result, dust removal and sterilization / sterilization of the object can be performed efficiently.

  In addition, if the thermometer device has a configuration (19th configuration) including the thermometer and the storage device according to the eighteenth configuration for storing the thermometer therein, a thermometer that is one of the medical devices is provided. It becomes easy to keep it hygienic.

  As described above, according to the present invention, since the phase shift circuit that can be switched between the first state and the second state is provided, the transformer is accompanied by the phase fluctuation by appropriately performing this switching. Regardless of what is or is not, the voltage fed back can be positive feedback. As a result, oscillation can be caused regardless of the winding direction in the transformer.

  Hereinafter, embodiments of the present invention will be described by dividing them into first to fourth embodiments.

[First Embodiment]
A first embodiment of an ion generator according to the present invention will be specifically described with reference to the drawings. FIG. 1 is an overall block diagram of an ion generator according to this embodiment.

  The ion generator shown in FIG. 1 includes a voltage amplification unit 1, a winding transformer (boosting unit) 2, a step-down unit (voltage dividing circuit) 3, a feedback circuit 4, an ion generating element 5, a transient voltage amplification unit 6, and a phase inversion unit 7. The first switching unit 8, the second switching unit 9, and the switching control unit 10 are configured. A device obtained by removing the ion generating element 5 from the ion generator can be regarded as a high voltage output device that outputs a high voltage to the secondary side of the winding transformer 2.

  Here, the “high voltage” means a voltage that is high enough to allow generation of ions from the ion generating element 5 when a voltage is applied to the ion generating element 5, and the magnitude (absolute value) of the voltage is For example, it is several hundred volts (volt) or more. A specific circuit configuration example of the ion generator of FIG. 1 is shown in FIG.

  The voltage amplifying unit 1 is constituted by a voltage amplifying device such as an operational amplifier or a MOSFET, for example. The voltage amplifying unit 1 is connected to the power supply line L1 and the ground line L2 of 0V, and is supplied with driving power from the power supply line L1. When an AC voltage is input to the input terminal of the voltage amplifying unit 1, the AC voltage has substantially the same phase as that, and the voltage value (amplitude) is amplified so as to satisfy at least an oscillation condition in an oscillation circuit described later. Is output from the output terminal.

  A winding transformer (hereinafter simply referred to as “transformer”) 2 has a sufficiently large number of turns of the secondary coil than the number of turns of the primary coil. Thus, when an AC voltage is input to the primary coil, the voltage value (amplitude) is amplified and output from the secondary coil. In general, there are transformers that may or may not cause phase reversal depending on the relative relationship in the winding direction between the primary side coil and the secondary side coil. It doesn't matter.

  The step-down means 3 is a device in which a first resistance element R1 and a second resistance element R2 are connected in series and connected between both terminals of the secondary coil of the transformer 2. That is, the voltage between the two terminals is divided by the first resistance element R1 and the second resistance element R2, thereby lowering the voltage. As a result, the divided AC voltage having the same phase as that of the AC voltage output from the secondary coil of the transformer 2 is taken out from between the first resistance element and the second resistance element, Input to the amplifying unit 1.

  The ion generating element 5 includes two electrodes respectively connected to both terminals of the secondary coil of the transformer 2. These electrodes are open so that air can freely enter and exit. As a result, a high voltage is generated between the electrodes to form a discharge state, and ions or ozone can be generated from the air. From the viewpoint of an electric circuit, these electrodes can be handled in the same manner as a capacitor (capacitive load).

In addition, the ion here specifically refers to O ₂ ⁻ produced from oxygen in the air, H ⁺ produced from water vapor or the like. It has been found that these are generated when a certain voltage or higher is applied to the air. In addition, as will be described later, these ions have an effect of removing dust attached to an object (dust removal action) and a sterilizing / disinfecting action, and some ions act on the human body. It is also known to have the effect of calming the person.

  The transient voltage amplifying unit 6 is provided in a subsequent stage of the voltage amplifying unit 1 and generates a voltage that is transiently output when power supply to the voltage amplifying unit 1 is started. The phase inverting unit 7 is provided in the subsequent stage of the transient voltage amplifying unit 6 and inverts the phase of the input voltage and outputs it. The phase inversion unit 7 may not only invert the phase but also amplify the voltage.

  The first switching unit 8 has a state in which the voltage output from the transient voltage amplification unit 6 is output to the subsequent stage via the phase inversion unit 7 and a state in which the voltage is output to the subsequent stage without passing through the phase inversion unit 7. Either can be switched freely. Further, the second switching unit 9 is provided in the subsequent stage of the first switching unit 8, and either the state of outputting the input voltage to the subsequent stage (connected state) or the state of not outputting (blocking state), It can be switched freely.

  Further, the switching control unit 10 controls the timing for switching between the first switching unit 8 and the second switching unit 9 by, for example, generating a predetermined clock by an oscillation circuit provided uniquely. The switching timing will be described later.

  Next, the operation of the ion generator will be described. First, when the power supply line L1 starts to supply power, a transient voltage fluctuation occurs at the output terminal of the voltage amplification unit 1 due to the influence of the fluctuation of the power state (generation of noise). Note that the frequency distribution of the voltage fluctuation immediately after the power supply exists over a wide band.

  The AC signal (transient voltage) having this wide frequency distribution is first input to the transient voltage amplifier 6. This transient voltage is amplified by the transient voltage amplifier 6 to such an extent that oscillation can be started. Thereafter, the first switching unit 8 and the second switching unit 9 are input to the primary side coil of the transformer 2, and the voltage is amplified and output from the secondary side coil. The amplification processing in the transient voltage amplifier 6 is executed only before the oscillation starts, and is not executed after the oscillation is started (the input voltage is output as it is).

  Here, the impedance of the secondary coil in the transformer 2 is substantially equivalent to the coil. The impedance of the ion generating element 5 is substantially equivalent to a capacitor. Therefore, a resonant circuit is formed on the secondary side of the transformer 2 by the secondary coil of the transformer 2 and the capacitor of the ion generating element 5. As a result, only an AC signal having a frequency substantially equal to the resonance frequency of the resonance circuit appears (amplified) between both terminals of the secondary coil of the transformer 2, and AC signals having other frequencies are attenuated.

  On the other hand, the step-down means 3 steps down an AC voltage (AC signal) generated by such a resonance circuit and feeds it back to the input side of the voltage amplifier 1. The resistances of the first resistance element R1 and the second resistance element in the step-down means 3 are set so that the voltage value to be fed back falls within the range of the input allowable voltage (for example, rated voltage) of the voltage amplification section 1.

  This prevents the voltage amplification unit 1 from being damaged by an excessive voltage load. In addition, since the resistance element is used as the voltage dividing circuit in this way, the voltage dividing circuit can be made relatively small (for example, compared to a voltage using a capacitor). A capacitive element (capacitor) may be used instead of each resistive element. In this way, the voltage dividing circuit can have a higher breakdown voltage.

  The fed back AC voltage is output with the voltage value amplified by the voltage amplifier 1. Thus, in this ion generator, the self-excited oscillation circuit is comprised by the closed circuit which consists of the voltage amplifier 1, the transformer 2, the step-down circuit 3, the feedback circuit 4, and the like.

  The oscillation frequency of this oscillation circuit is substantially equal to the resonance frequency of the resonance circuit formed by the secondary coil of the transformer 2 and the capacitor of the ion generating element 5. That is, the voltage fed back by the feedback circuit 4 is amplified by the voltage amplifying unit 1 with almost the same frequency and input to the primary side coil of the transformer 2. For this reason, the voltage input to the primary side coil of the transformer 2 is substantially equal to the resonance frequency of the resonance circuit formed on the secondary side of the transformer 2, and as a result, the efficiency of voltage amplification in the transformer is increased. It is possible.

  Therefore, a high voltage can be obtained efficiently at both ends of the ion generating element 5. Further, even when the capacitance of the ion generating element 5 changes due to changes in atmospheric humidity or the approach of a conductive material, an alternating voltage having a frequency at which the voltage at both ends of the ion generating element 5 is always maximized by the above-described series of operations. As a result, high efficiency is maintained.

  Here, focusing on the oscillation conditions in the oscillation circuit described above, the voltage fed back needs to be positive feedback in order to cause oscillation. In this regard, when there is no phase difference between the input voltage and the output voltage of the transformer 2, the voltage fed back by the feedback circuit 4 is positive feedback unless there is a particular phase fluctuation in the voltage amplifier 1 or the like.

  However, in general, the transformer is either one that outputs the input voltage without changing the phase or one that outputs the signal with the phase inverted depending on the relative relationship in the winding direction between the primary coil and the secondary coil. . Therefore, if the transformer 2 of the present embodiment outputs the signal with the phase inverted, the voltage to be fed back is almost negative feedback unless any phase shift means is used, and appropriate oscillation does not occur. become.

  Therefore, in the present embodiment, as described above, the phase inversion unit 7, the first switching unit 8, the second switching unit 9, and the switching control unit 10 are provided, and the oscillation condition is set regardless of the winding direction in the transformer 2. It is configured to meet. Here, the structure of this structure is demonstrated below.

  In this configuration, the state of passing through the phase inverting unit 7 and the state of not passing through the oscillation circuit are appropriately switched through the switching process of the first switching unit 8 and the second switching unit 9 by the switching control unit 10. Yes. A timing chart regarding these switching processes is shown in FIG.

  As shown to (a) of this figure, the 1st switching part 8 will be in the state of non-connection with the phase inversion part 7 between AB and between DE, and is connected with the phase inversion part 7 between BC and EF. It becomes a state. In addition, in between CDs (period shown with the broken line in the figure), since the 2nd switching part is in the interruption | blocking state, it does not affect a voltage state in any state.

  Further, as shown in (b) of this figure, the second switching unit 9 is in a state of connecting the front stage and the rear stage between ACs and between DFs, but is in a cut-off state between CDs.

  The voltage state in the oscillation circuit in the case where the transformer 2 is wound so as not to cause phase inversion is shown in FIG. In this way, between AB and DE, which are in a state of being disconnected from the phase inverting unit 7, the voltage fed back becomes positive feedback, so that oscillation occurs, and the voltage in the oscillation circuit is amplified. However, between BC and EF, the voltage fed back is almost negative feedback, so the voltage attenuates.

  In addition, the voltage state in the oscillation circuit when the transformer 2 is wound so as to cause phase inversion is shown in FIG. In this way, between the BCs and the EFs connected to the phase inversion unit 7, the voltage fed back becomes positive feedback, so that oscillation occurs, and the voltage in the oscillation circuit is amplified. However, between AB and DE, the voltage fed back is almost negative feedback, so that oscillation hardly occurs.

  As described above, in this configuration, it is possible to have a period in which the voltage fed back becomes positive feedback regardless of the winding direction of the transformer, and the oscillation condition can be satisfied in this period. It has become. Further, in order to start oscillation in the self-excited oscillation circuit more reliably, a transient voltage is applied to the voltage amplifying unit 1 every time the second switching unit 9 switches to the connected state or every time the first switching unit 8 switches. It may be output.

  In order to cause oscillation regardless of the winding direction of the transformer, for example, a configuration as shown in FIG. In this configuration, a phase difference detection unit 11 that detects a voltage phase difference between the primary side and the secondary side of the transformer 2 is provided. When the phase difference detection unit 11 detects the phase inversion in the transformer, the first switching unit 8 is connected to the phase inversion unit 7. On the contrary, when the phase inversion is detected, the first switching is performed. The unit 8 is not connected to the phase inversion unit 7. As a result, the feedback voltage becomes positive feedback regardless of the winding direction of the transformer, and oscillation can be caused.

[Second Embodiment]
In the ion generator according to the first embodiment shown in FIGS. 1 and 2, it is possible to generate not only ions but also ozone by adjusting the supply voltage to the voltage amplification unit 1. / Can be an ozone generator. Therefore, an ion / ozone generator will be described below as a second embodiment according to the present invention. First, FIG. 4 shows an example of the relationship between the voltage between the ion generating elements (or the voltage amplification factor in the voltage amplifying unit 1 and the supply voltage V1) and the amount of ions and ozone generated. Shown in

  The generation characteristics of ions and ozone depend on the structure of the ion generation element, the waveform of the high voltage applied to the ion generation element, the amount of molecules such as water vapor existing in the air, etc. It becomes like this. Since the amount of ions generated is limited by the amount of molecules such as water vapor present in the air, the amount generated is saturated at a certain voltage. Therefore, as shown in FIG. 4, in the region where the voltage applied to the ion generating element is low, the amount of ions generated is larger than the amount of ozone generated, and in the region where the applied voltage is high, the amount of ozone generated is larger than the amount of generated ions. Tend to be.

  Therefore, in the ion / ozone generator of this embodiment, it is assumed that the generation amount of ions and ozone can be switched using this tendency. This switching is realized by providing a voltage variable power source 42 and an ion output control unit 43 as shown in FIG.

  The voltage variable power source 42 is configured to vary the supply voltage V1 to the voltage amplifying unit 1 by voltage adjusting means. This voltage adjusting means is realized by an element such as a transistor, for example. Note that, by changing the supply voltage V1, the voltage amplification factor in the voltage amplification unit 1 varies (switches) accordingly.

  Further, the ion output control unit 43 controls the output amount of ions or ozone through the adjustment in the voltage adjusting means described above. Various methods can be adopted as this control method, and an example is shown below.

  The ion output control unit 43 selectively selects each operation mode in the ion / ozone generator. Specifically, for example, this operation mode includes a mode for generating ions without generating ozone (first operation mode), a mode for generating ozone less than a predetermined amount (second operation mode), and ozone exceeding the predetermined amount. A mode for generating (third operation mode) and a mode for generating neither ions nor ozone (fourth operation mode) are set.

  As this “predetermined amount” relating to the amount of ozone generated, for example, since a large amount of ozone has an adverse effect on the human body, it is conceivable to use an amount that is a threshold value for the presence or absence of the influence on the human body. As a result, when sterilization and sterilization are performed while minimizing the influence on the human body, ozone is in contact with the human body, although the sterilization and sterilization action to some extent is desired in the first operation mode. If possible, the second operation mode may correspond to the third operation mode when ozone is not likely to contact the human body and a stronger sterilization / sterilization action is desired. it can.

  For example, as shown in FIG. 4, the voltage at which ions start to be generated (voltage between the electrodes of the ion generating element) is VA, the voltage at which ozone starts to be generated is VB, and the voltage at which ozone is generated by a predetermined amount is VC. Then, in the first operation mode, the interelectrode voltage of the ion generating element is any value from VA to VB, and in the second operation mode, it is any value from VB to VC. Similarly, in the third operation mode, a predetermined value is set in advance so as to be any value larger than VC, and in the fourth operation mode, it is set to any value smaller than VA.

  As described above, since the generation characteristics of ions and ozone are affected by the structure of the ion generation element and the waveform of the high voltage applied to the ion generation element, the supply voltage in each operation mode is considered in consideration of these elements. Need to be determined. Similarly, since the generation characteristics of ions and ozone also depend on the amount of molecules such as water vapor present in the air, it is more preferable to be able to follow fluctuations in this amount. For example, a device that measures the amount of water vapor molecules in the ion / ozone generator and corrects the supply voltage corresponding to each operation mode according to the measurement result may be considered.

  In addition, as to which of the operation modes to select, for example, it can be made according to a button operation by the user. That is, four button switches corresponding to each operation mode are provided as a user interface, and the voltage amplification factor of the voltage amplification unit 1 necessary for realizing each operation mode is calculated in advance.

  When any switch is pressed, the voltage amplification unit 1 may be switched to a voltage amplification factor corresponding to the switch. For example, when the button switch corresponding to the second operation mode is pressed, the voltage is set so that the voltage between the electrodes of the ion generating element becomes a voltage amplification factor calculated in advance so as to have any value from VB to VC. The supply voltage V1 to the amplifying unit 1 is switched.

  By switching the voltage amplification factor in the voltage amplification unit 1, the voltage output from the secondary side (high voltage output device) of the transformer is switched, and the generation amounts of ions and ozone are arranged via air. It depends on the voltage between both electrodes of the ion generating element. Therefore, by adjusting the voltage amplification factor in the voltage amplifying unit 1 as described above, it becomes possible to easily control the generation amount of ions and ozone, and to execute such control according to the occasional situation. Thus, a highly versatile ion generator is realized.

  Furthermore, since the control state can be set alternatively from the four operation modes by the switching means, it is easy to generate ions and ozone according to the situation at that time.

[Third Embodiment]
Next, an embodiment in which an ion generator is provided in a mobile phone device will be described as a third embodiment. 8A and 8B are perspective views of the mobile phone device 60 according to the present embodiment. The cellular phone device 60 is a foldable cellular phone device, and the cellular phone device 60 can be folded via a well-known rotating mechanism 71 composed of a hinge or the like. The state of the cellular phone device 60 can be freely changed between an open state (not folded) and a closed state (folded) by an external force applied by the operator.

  FIG. 8A shows a perspective view of the surface of the mobile phone device 60 in a state in which the mobile phone device 60 is opened so that the display content of the main display unit 62 can be confirmed, and FIG. The perspective view of the back surface of the mobile telephone apparatus 60 in a state is represented. FIGS. 9A and 9B respectively show a side view and a top view of the mobile phone device 60 in a state in which the mobile phone device 60 is closed. In FIG. 9B, the sub display unit 63 and the like are not shown in order to prevent the drawing from becoming complicated.

  The cellular phone device 60 includes an operation key 61, a main display unit 62, a sub display unit 63, a fingerprint sensor 64, a position selection key 65, an ion generation operation mode setting key 66, an ion generation voltage up key 67, and an ion generation voltage down key 68. , An ion ejection unit 69, an ion generator 70, a hinge (rotation) mechanism 71, an impact relaxation member 72, an upper housing 73, a lower housing 74, and an imaging unit 75. The rotating mechanism 71, the upper casing 73, and the lower casing 74 constitute a casing of the mobile phone device 60, and the upper casing 73 and the lower casing 74 are separated from each other with the rotating mechanism 71 as a boundary ( However, it is electrically connected).

  On the upper casing surface 76 of the upper casing 73, a main display section 62, an ion generation voltage up key 67, an ion generation voltage down key 68, an ion ejection section 69, and an impact relaxation member 72 are provided. An ion generator 70 is provided inside the upper housing 73.

  An operation key 61, a fingerprint sensor 64, a position selection key 65, and an ion generation operation mode setting key 66 are provided on the lower casing surface 77 of the lower casing 74. A sub display unit 63 and an imaging unit 75 are provided on the back surface 78 of the upper housing 73.

  An operation key 61, a fingerprint sensor 64, a position selection key 65, an ion generation operation mode setting key 66, an ion generation voltage up key 67, and an ion generation voltage down key 68 are directly input by a person who is an operator. It is a contact type information input unit. Among these contact-type information input units, the fingerprint sensor 64 is biometric information input means for accepting input of biometric information for performing biometric authentication. Otherwise, the information assigned to the key is used as a fingertip or the like. It is a key input means that is received by a key operation by. It can be said that the main display unit 62 and the sub display unit 63 are components that output information on a form that can be recognized by a person.

  As the ion generator 70, the ion generator shown in the first embodiment or the ion / ozone generation system 44 (FIG. 7) that generates both ions and ozone, which will be described later, according to the second embodiment can be adopted. . Hereinafter, description will be made assuming that the ion generator 70 is the ion / ozone generation system 44 (FIG. 7). The ions generated by the ion generator 70 are sent out from the ion ejection part 69 which is an opening provided in the upper casing surface 76 to the upper casing surface 76 side of the upper casing 73.

  The impact mitigating member 72 is made of a rubber member, and an upper portion on a substantially square so as to surround a region where the main display portion 62, the ion generation voltage up key 67, the ion generation voltage down key 68, and the ion ejection portion 69 are disposed. It is fixed on the periphery of the housing surface 76. For example, the area can be considered as a rectangular area. The shock relaxation member 72 has a U-shape, and the three sides of the region are surrounded by the shock relaxation member 72 and the other side is surrounded by a member (hinge mechanism) of the rotation mechanism 71. The material of the impact relaxation member 72 is not limited to a rubber member, and other materials may be applied.

  Then, when the cellular phone device 60 is closed (folded), as shown in FIGS. 9A and 9B, the impact relaxation member 72 is in close contact with the peripheral portion of the lower housing surface 77. As a result, a substantially rectangular parallelepiped space surrounded by the upper casing surface 76, the lower casing surface 77, the impact mitigating member 72, and the members of the rotating mechanism 71 is sealed.

  In this space, the main display section 62 on the upper casing surface 76 side, the ion generation voltage up key 67, the ion generation voltage down key 68 and the ion ejection section 69, the operation keys 61 on the lower casing surface 77 side, the fingerprint sensor 64, a position selection key 65 and an ion generation operation mode setting key 66 are included. Of course, when the cellular phone device 60 is opened, the space is opened.

  The “sealed state” here is not necessarily limited to a completely sealed state, and even if there are some gaps or the like, ions or ozone can be almost filled in the space. If it is about the same level. For example, a slight gap is easily formed between the impact relaxation member 72 and the lower housing surface 77 or the hinge mechanism 71, but sufficient effect can be obtained as long as ions or ozone can be almost filled in the space. Can be expected.

  Further, the impact relaxation member 72 may be formed in a square shape (not shown) instead of a square shape. In other words, when the mobile phone device 60 is closed, the U-shaped impact mitigating member 72 is brought into close contact with the peripheral portion of the lower casing surface 77 so that the U-shaped impact mitigating member 72 and the upper casing surface are The space may be sealed by 76 and the lower housing surface 77 (without depending on the member of the rotating mechanism 71).

  FIG. 10 shows a functional block diagram of the mobile phone device 60. 8A and 8B, FIGS. 9A and 9B, and FIG. 10, the same parts are denoted by the same reference numerals. The cellular phone device 60 further includes a control unit 80, an antenna 81, a wireless communication unit 82, a storage unit 83, and a voice input / output unit 84 in addition to the parts described with reference to FIG. The control unit 80 can recognize whether the cellular phone device 60 is closed or open by using a switch (not shown) that is turned on / off according to the opening / closing operation of the cellular phone device 60.

  Hereinafter, the operation of the mobile phone device 60 will be described. When the mobile phone device 60 shifts from the standby state to an operation state in which calls and imaging can be performed (that is, when the mobile phone device 60 shifts from the closed state to the open state), the ion output of the ion generator 70 from the control unit 80. A control signal for generating ions is sent to the control unit 43 (FIG. 7). As a result, the power supply of the ion / ozone generator 41 (FIG. 7) is turned on (that is, the DC voltage V1 is supplied to the power supply line L1 of FIG. Is done.

  In the operation state of the mobile phone device 60, the mobile phone device 60 is open as shown in FIGS. 8 (a) and 8 (b). In the standby state of the mobile phone device 60, the mobile phone device 60 is closed as shown in FIGS. 9 (a) and 9 (b).

  Then, when ions are sent out for a predetermined time, a control signal for stopping the generation of ions is sent from the control unit 80 to the ion output control unit 43 (FIG. 7) of the ion generator 70. As a result, the power supply of the ion / ozone generator 41 is turned off (that is, the supply of the DC voltage V1 to the power supply line L1 in FIG. 2 is interrupted), and the generation of ions is stopped. Bacteria floating around the mobile phone device 60 can be sterilized by the ions. Even when the cellular phone device 60 is used in the presence of many people, it can be used in a state sterilized by ions.

  As described above, when the ion / ozone generator 41 is turned off when a predetermined time has elapsed after the transition from the standby state to the operation state, the ion delivery is continued after the transition from the standby state to the operation state. It doesn't matter if you do. In this case, for example, the power source of the ion / ozone generator 41 is shifted from on to off when the cellular phone device 60 is again in a standby state (standby state) and folded.

  Further, in order to enhance the sterilizing effect, ozone may be generated together with the ions, and the ozone may be sent out from the ion ejection part 69. However, the amount of ozone generated is appropriately controlled in consideration of the odor of ozone and the adverse effects of a large amount of ozone on the human body. The amount of ozone generated can be controlled by increasing or decreasing the voltage applied to the ion generating element.

  When the mobile phone device 60 shifts from the operating state to the standby state (that is, when the mobile phone device 60 shifts from the open state to the closed state), the ion output control unit 43 of the ion generator 70 (see FIG. 7), a control signal for generating ozone is sent. As a result, the supply voltage to the ion / ozone generator 41 (FIG. 7) increases (that is, V1 that has increased to the DC voltage that generates ozone is supplied to the power supply line L1 in FIG. 2 to enter the ozone generation mode). , Ozone is delivered from the ion ejection part 69. At this time, ions may be generated together with ozone, and both may be sent out from the ion ejection portion 69.

  The power source of the ion / ozone generator 41 shifts from on to off when a predetermined time elapses, and shifts to an ion generation stop mode in which the operation of the ion / ozone generation system 44 is stopped. In addition, you may make it continue sending ozone from the ion ejection part 69 of ozone or ozone and ion until the mobile telephone apparatus 60 transfers to the state opened again.

  When the cellular phone device 60 is closed (folded), ozone is supplied to the sealed space including the operation keys 61 and the like, so that ozone is confined in the space for a longer time than when the cellular phone device 60 is not sealed. . As a result, the bactericidal effect by ozone lasts for a long time, and an effective bactericidal action is obtained. Therefore, when the mobile phone device 60 is carried around and used by a plurality of operators, or when the mobile phone device 60 is used in a place such as a medical institution that requires special hygiene considerations, the convenience is improved. Can do.

  The ions have an effect of electrically neutralizing dust and dirt attached to the operation key 61 and the like by charging and facilitating the removal of the dust. For this reason, dust or the like can be easily removed by supplying ions to the sealed space with the cellular phone device 60 closed (folded state).

  Further, when ozone is generated, the state of generation may be displayed on the sub display unit 63, and when ion is generated, the state of generation may be displayed on the main display unit 62. Thereby, the operator can confirm the generation | occurrence | production state of ion and ozone.

  In addition, when the mobile phone device 60 shifts from the operating state (open state) to the standby state (closed state), if the ion / ozone generation system 44 is powered on, the ion / ozone generator The supply voltage V1 to 41 is gradually increased, and the mode is gradually shifted from the ion generation mode to the ozone generation mode.

  The foldable mobile phone device described above includes a housing having a contact type information input unit, and seals and opens a space in contact with the contact type information input unit according to a folded state and an unfolded state. It is configured to be free. In the folded state, ions or ozone can be released (induced) into the sealed space.

  Therefore, when the space in contact with the contact type information input unit is sealed, sterilization and the like are efficiently performed by guiding ions or ozone into the space, and when open, through the contact type information input unit, The user can easily input information.

  In addition, the folding-type mobile phone device includes an upper casing 73 having an upper casing surface 76, a lower casing 74 having a lower casing surface 77, and rotating the upper casing 73 and the lower casing 74. It can be said that the upper casing surface 76 and the lower casing surface 77 can be folded in a substantially opposed state through this rotation.

  Further, on the upper casing surface 76 or the lower casing surface 77, a contact type information input unit is provided at a portion sandwiched between both casings (73, 74) in a folded state, Ions or ozone is released (induced) into the space sandwiched between the two casings in the folded state.

  Therefore, ions or ozone is induced in the space that is sandwiched between both housings in a folded state (since it is partitioned by at least both housings and thus has higher sealing properties than a completely open space) It is possible to efficiently remove dust or sterilize and disinfect the contact information input unit.

  In addition, in this folded state, a sealed space is formed in a portion sandwiched between both housings, and the contact information input unit is provided at a position in contact with the sealed space. Ozone is released into this sealed space.

  For this reason, in the folded state, the contact type information input unit comes into contact with this sealed space, and ions or ozone are induced in this space, so that the dust removal or sterilization / sterilization of the contact type information input unit is performed more efficiently. It has become something that can be done.

  The sealed space has an upper case surface 76 and a lower case surface 77 as both bottom surfaces, and an impact mitigating member 72 and a hinge mechanism 71 made of a rubber material (when the impact mitigating member 72 has a square shape) , Only the impact mitigating member). Since the impact relaxation member is made of a rubber material in this way, the degree of sealing of the sealed space is good, and it is possible to prevent both housings from contacting and scratching when folded. Yes.

  As shown in FIG. 8, the fingerprint sensor 64 is provided at a position facing the ion ejection portion 69 in a folded state. Therefore, it becomes possible to make ions or ozone come into contact with the fingerprint sensor 64 more efficiently by using the momentum of the ejection. As with the fingerprint sensor 64, it is also a good method to place a portion where dust removal or sterilization / sterilization is particularly desired so as to be opposed to the ion ejection port.

  Next, the configuration and function of each part of the mobile phone device 60 will be described. However, the duplicate description of the already described items is omitted.

  The operation key 61 is composed of a plurality of button type input keys representing numbers and alphabets. The position selection key 65 is formed of a button-type so-called cross key that represents four directions of up, down, left, and right. The operator inputs necessary information (telephone number and the like) for operating the mobile phone device 60 through the operation key 61 using the position selection key 65.

  The main display unit 62 is a display device for displaying image information that the mobile phone device 60 has. The image information is, for example, image information transmitted from the outside and received by the mobile phone device 60, image information obtained by imaging by the imaging unit 75, or image information such as a function menu of the mobile phone device 60.

  The sub display unit 63 is for supplementing the display function of the main display unit 62. For example, the sub display unit 63 displays the time and calendar in a waiting state for incoming calls when the cellular phone device 60 is folded, and the other party's telephone number and mail address are displayed when an incoming call is received. In order to reduce power consumption, the display of the sub display unit 63 is usually darker than the main display unit 62, and the display operation is stopped when a predetermined time elapses from the display start of the sub display unit 63. Is controlled.

  Various display devices such as a liquid crystal display device, a plasma display display device, and an LED (Light Emitting Diode) display device can be used as the main display unit 62 and the sub display unit 63. However, low power consumption and miniaturization are possible. From this point of view, it is desirable to adopt a liquid crystal display device.

  The fingerprint sensor 64 is composed of a solid-state imaging device such as a CCD (Charge Coupled Devices) imager and a CMOS (Complementary Metal Oxide Semiconductor) imager, an element for reading a change in capacitance, and the like. Read the fingerprint. The fingerprint sensor 64 performs identity verification by so-called biometric authentication, and maintains operational security. That is, the specific function of the mobile phone device 60 can be used only when the fingerprint read by the fingerprint sensor 64 matches the registered fingerprint (registrant's fingerprint).

  When the fingerprint is read by the fingerprint sensor 64, the temperature of the part touched by the finger having the fingerprint (for example, the surface temperature of the fingerprint sensor 64) may be measured. When the temperature is out of a certain range, the authentication result is disabled regardless of the fingerprint verification result (that is, the use of the specific function is not permitted). As a result, it is possible to prevent “spoofing” caused by taking a registrant's fingerprint and forging it, and “spoofing” using a cut registrant's finger.

  The ion generation operation mode setting key 66 is a key for performing a series of operations for causing the mobile phone device 60 to function as an ion generation device. When the ion generation operation mode setting key 66 is first pressed, the cellular phone device 60 is set to an operation mode that functions as an ion generation device. Specifically, the ion generator 70 operates and ions or ozone is released from the ion ejection unit 69. Next, when the ion generation operation mode setting key 66 is pressed, the operation of the ion generator 70 is stopped and the emission of ions or ozone from the ion ejection part 69 is stopped.

  The ion generation voltage up key 67 and the ion generation voltage down key 68 set the maximum voltage in the absolute value of the high voltage applied to the ion generation element 5 (see FIG. 3 etc.) within the breakdown voltage range of the components of the ion generator 70. It is a key for adjustment. Specifically, when the ion generation voltage up key 67 is pressed, the above-mentioned V1 increases in a range where ozone is not generated in proportion to the number of presses, so that the maximum voltage rises, and when the ion generation voltage down key 68 is pressed. The maximum voltage decreases as V1 decreases in proportion to the number of presses. When the maximum voltage is set low, the amount of ions generated is reduced, but the power consumption is suppressed.

  The imaging unit 75 receives an optical image representing a subject via a lens (not shown), converts the optical image into an electrical signal, and outputs the electrical signal to an internal circuit, and functions as a so-called digital camera. Image information (image data) obtained by imaging by the imaging unit 75 is recorded in the storage unit 83 and reused as necessary.

  The wireless communication unit 82 (see FIG. 10) is for performing wireless communication with another mobile phone device or the like via radio waves at an external base station or the like. The wireless communication unit 82 transmits and receives radio waves via the antenna 81. The recording unit 83 stores information obtained by wireless communication, a control program built in the mobile phone device 60 in advance, information input from a contact type information input unit such as the operation key 61, and the like. The voice input / output unit 84 is a voice input / output unit for making a call.

  In the third embodiment, the mobile phone device is shown as an example of the electronic device. However, the ion generator according to the first and second embodiments can be applied to various electronic devices (particularly, portable electronic devices). In particular, the ion generator according to the present invention is suitable for a small portable electronic device because it has features of low cost, light weight, and high reliability (impact resistance). The contents shown in the third embodiment can be applied to various electronic devices such as an electronic thermometer device and an overheating cooker (such as a microwave oven), and by this application, an effective sterilization effect that contributes to hygiene maintenance Can be obtained.

[Fourth Embodiment]
In 4th Embodiment, the example which applied the ion generator which concerns on this invention to the thermometer apparatus is shown. 11 and 12 are perspective views of the thermometer device 90 according to the present embodiment. FIG. 11 shows a state in which the lid 93 of the thermometer container is opened, and FIG. 12 shows a state in which the lid 93 is closed.

  A thermometer device 90 includes a thermometer body 91 for measuring body temperature, a thermometer housing body 92, a thermometer housing lid 93, a housing detection sensor 94, a high voltage output device 95, an ion generating element 96, It is comprised. The thermometer housing main body 92 and the lid 93 constitute a thermometer housing for housing the thermometer main body 91. Inside the thermometer housing main body 92, a housing detection sensor 94, a high voltage output device 95, and an ion generating element 96 are provided.

  The thermometer housing main body 92 is a box-like body in which a space for housing the thermometer main body 91 is secured, and one surface is open. The lid 93 is also a box-like body in which a space for housing the thermometer main body 91 is secured, and one surface is open. The thermometer housing main body 92 and the lid 93 are formed by fitting the open surfaces of the thermometer housing main body 92 and the lid 93 as shown in FIG. 12 (that is, by closing the lid 93). The thermometer main body 91 can be accommodated in the space that is substantially blocked from the outside air.

  The space formed by the thermometer housing main body 92 and the lid 93 by closing the lid 93 is hereinafter referred to as a thermometer housing space. The thermometer storage space is hermetically sealed by closing the lid 93, and is opened to the outside air by opening the lid 93 (that is, by disengaging the thermometer housing main body 92 and the lid 93). .

  When the lid 93 is closed with the thermometer main body 91 inserted into the thermometer housing main body 92, one surface of the thermometer main body 91 is pushed by the lid 93, and the other surface of the thermometer main body 91 applies pressure to the storage detection sensor 94. The storage detection sensor 94 is pushed in by the pressure, and turns on a switch (not shown) between a battery (not shown) built in the thermometer housing body 92 and the high voltage output device 95. That is, the output voltage of the battery is supplied to the high voltage output device 95 as a power supply voltage.

  The high voltage output device 95 and the ion generating element 96 constitute the ion generator described in any one of the first to second embodiments, and the high voltage output device 95 is changed from the ion generator to the ion generating element 5. It corresponds to the thing except. The ion generating element 96 is the same as the ion generating element 5 shown in the first to second embodiments. When the output voltage of the battery is applied to the high voltage output device 95, the ion generator composed of the high voltage output device 95 and the ion generating element 96 is turned on, and an alternating high voltage is generated from the high voltage output device 95. . The alternating high voltage is applied to the ion generating element 96, and ions and / or ozone are generated from the ion generating element 96.

  For example, when the ion generator composed of the high voltage output device 95 and the ion generating element 96 is the ion generator shown in the first embodiment, ions are generated from the ion generating element 96. When the ion generator composed of the high voltage output device 95 and the ion generating element 96 is the ion generator shown in the second embodiment, ions and / or ozone are generated from the ion generating element 96.

  Products (ions and / or ozone) generated from the ion generating element 96 are released into the thermometer storage space. Since the thermometer storage space is sealed, the product fills the thermometer storage space in which the thermometer main body 91 is stored. For this reason, sterilization etc. are performed efficiently.

  When the lid 93 is opened, the voltage supply from the battery is cut off, the operation of the high voltage output device 95 is turned off, and the generation of the product is stopped.

  As described above, the embodiments of the present invention have been described with reference to the first to fourth embodiments. However, the present invention is not limited to these embodiments, and various modifications can be made without departing from the spirit of the invention. Can be added. Further, the first to fourth embodiments described above can be freely combined as long as there is no contradiction.

  In particular, in the third and fourth embodiments, it is possible to employ ion generators having various known circuit configurations. That is, for example, an ion generator including a known high voltage output device that obtains a high voltage necessary for ion generation using a piezoelectric transformer, a charge pump, or the like can be used as the ion generator 70. However, in consideration of cost, lightness, reliability, and the like, it is desirable to employ the ion generator shown in the first or second embodiment as the ion generator.

It is a block diagram of the ion generator concerning a 1st embodiment of the present invention. FIG. 2 is an example of a specific circuit diagram according to the configuration of FIG. 1. It is a graph which shows the frequency-output voltage characteristic in TP of FIG. It is a graph which shows the generation amount of ion and ozone. It is the circuit diagram which modeled the secondary side of the transformer. It is a timing chart of each switching part etc. in 1st Embodiment of this invention. It is a block diagram of the ion generator which concerns on 2nd Embodiment of this invention. It is a perspective view of the mobile telephone apparatus which concerns on 3rd Embodiment of this invention, and is a perspective view of the surface and back surface in the state which opened the mobile telephone apparatus. It is the perspective view of the mobile telephone apparatus which concerns on 3rd Embodiment of this invention, and is the side view and top view of a mobile telephone apparatus in the state which closed the mobile telephone apparatus. FIG. 10 is a functional block diagram of the mobile phone device shown in FIGS. 8 and 9. It is a perspective view (state where a lid was opened) of a thermometer device concerning a 4th embodiment of the present invention. It is a perspective view (state where a lid was closed) of a thermometer device concerning a 4th embodiment of the present invention. In 1st Embodiment of this invention, it is a block diagram at the time of providing the phase difference detection part. 1 is a schematic configuration diagram of an ion generator that employs a self-excited oscillation circuit. It is a circuit diagram of the high voltage generation circuit in the conventional negative ion generator.

Explanation of symbols

1 Voltage amplifier (voltage amplifier circuit)
2 Boosting means (transformer)
3 Step-down means (voltage divider circuit)
4 Feedback Circuit 5 Ion Generating Element 6 Transient Voltage Amplifier 7 Phase Inversion Unit 8 First Switching Unit 9 Second Switching Unit 10 Switching Control Unit 11 Phase Difference Detection Unit R1, R2 Resistors (resistances for step-down)
L1 Power line L2 Ground line 41 Ion / ozone generator (ion generator)
42 Voltage Variable Power Supply 43 Ion Output Control Unit 44 Ion / Ozone Generation System 60 Mobile Phone Device 61 Operation Key 62 Main Display Unit 63 Sub Display Unit 64 Fingerprint Sensor 65 Position Selection Key 66 Ion Generation Operation Mode Setting Key 67 Ion Generation Voltage Up Key 68 Ion generation voltage down key 69 Ion ejection part 70 Ion generator 71 Rotation mechanism (hinge mechanism)
72 Impact mitigation member (protrusion)
73 Upper housing (first housing)
74 Lower housing (second housing)
75 Imaging unit 76 Upper housing surface (first outer surface)
77 Lower housing surface (second outer surface)
DESCRIPTION OF SYMBOLS 80 Control part 81 Antenna 82 Wireless communication part 83 Memory | storage part 84 Voice input / output part 90 Thermometer apparatus 91 Thermometer main body 92 Thermometer container main body 93 Lid 94 Storage detection sensor 95 High voltage output device 96 Ion generating element Vac 12V AC signal source T Transformer Cz Load capacity Rs Load resistance component TP Output voltage measurement point

Claims (19)

A transformer that amplifies the voltage input to the primary coil and outputs it from the secondary coil;
A feedback circuit for feeding back the output voltage;
A voltage amplification circuit that amplifies the fed back voltage and outputs the amplified voltage to the primary side coil;
An oscillation circuit is formed by a closed circuit composed of the transformer, a feedback circuit, and a voltage amplification circuit, and a high voltage output device that takes out an output voltage from the secondary coil,
The phase of the input voltage is shifted and output.
A first state in which the shift is performed so that the feedback voltage is positive feedback when the input voltage and the output voltage of the transformer are in phase; and the input voltage and the output voltage of the transformer A phase shift circuit that can be switched to any one of the second states in which the shift is performed so that the voltage fed back becomes a positive feedback when the phase is an antiphase;
A high voltage output device provided in the closed circuit. The phase shift circuit includes:
It has a phase inversion circuit that inverts the phase of the voltage,
The switchable state can be switched between a state in which an input voltage is output via the phase inverting circuit; and a state in which the voltage is output without passing through the phase inverting circuit. High voltage output device. The feedback circuit includes:
Having a step-down circuit for stepping down the output voltage, and feeding back the voltage stepped down by the step-down circuit;
The high voltage output device according to claim 1, wherein the step-down circuit steps down the output voltage so as to be within a range of an input allowable voltage of the voltage amplification circuit. The step-down circuit is
A first resistance element and a second resistance element;
4. The high voltage according to claim 3, wherein the output voltage is stepped down by dividing a voltage between both terminals of the secondary coil by using the first resistance element and the second resistance element. 5. Output device. The step-down circuit is
A first capacitor element and a second capacitor element;
4. The high voltage according to claim 3, wherein the output voltage is stepped down by dividing the voltage between both terminals of the secondary coil by using the first capacitor element and the second capacitor element. Output device. The oscillation circuit is
A self-excited oscillation circuit that starts transiently from a transient voltage, which occurs transiently by the start of power supply to the voltage amplification circuit,
6. The high voltage output device according to claim 1, further comprising transient voltage amplification means for amplifying the transient voltage. A high voltage output device according to any one of claims 1 to 6,
An ion generating element for generating ions and / or ozone from the air using the output voltage of the high voltage output device;
An ion generator comprising: A switching unit for switching a voltage amplification factor in the voltage amplification circuit;
Control means for controlling the generation state of ions and / or ozone in the ion generating element by switching the output voltage through switching of the voltage amplification factor;
The ion generator according to claim 7, comprising: An ion generator that generates ions and ozone,
Control status setting means for setting the control status in the control means alternatively from at least four operation modes,
The four operation modes are:
A first operation mode for generating ions without generating ozone;
A second operation mode for generating ozone less than a predetermined amount;
A third operation mode for generating ozone in a predetermined amount or more; and
A fourth operation mode in which neither ion nor ozone is generated;
The ion generator according to claim 8, comprising: An electronic device comprising the ion generator according to any one of claims 7 to 9,
An electronic apparatus comprising ion induction means for inducing ions and / or ozone generated by the ion generator to come into contact with a part or all of the electronic apparatus. It has a contact-type information input unit that allows people to directly contact and input information,
The electronic apparatus according to claim 10, wherein the ion guiding unit guides the ions and / or ozone to the contact information input unit. The contact type information input unit includes:
The electronic device according to claim 11, comprising at least one of a device for inputting biometric information; and a key for performing key operation. A housing having the contact-type information input unit;
The housing is configured so that a space in contact with the contact-type information input unit can be freely sealed and opened,
The electronic device according to claim 11 or 12, wherein the ion guiding means guides the ions and / or ozone to the space when the space is sealed. A first housing having a first outer surface;
A second housing having a second outer surface;
A hinge portion that rotatably connects the first housing and the second housing,
A foldable electronic device that is foldable in a state in which the first outer surface and the second outer surface face each other substantially through the rotation,
On the first outer surface or the second outer surface, the contact-type information input unit is provided in a portion sandwiched between the two housings in the folded state,
The electronic apparatus according to claim 11, wherein the ion guiding unit guides the ions and / or ozone into a space sandwiched between the two housings in the folded state. In the folded state, a substantially sealed space is formed in the portion sandwiched between the two housings.
The contact-type information input unit is provided at a position in contact with the substantially sealed space,
The electronic apparatus according to claim 14, wherein the ion guiding unit induces ions and / or ozone in the substantially sealed space. The first outer surface or the second outer surface is provided with a rubber protrusion.
16. The electronic apparatus according to claim 15, wherein the substantially sealed space is formed using the first outer surface and the second outer surface as both bottom surfaces, and the protruding portion and / or the hinge portion as side surfaces. . The ion guiding means includes an ion ejection port for ejecting the ions and / or ozone on the first outer surface,
The contact type information input unit includes:
The electronic device according to any one of claims 14 to 16, wherein the electronic device is provided on the second outer surface at a position facing the ion ejection port in the folded state. A storage device comprising the ion generator according to any one of claims 7 to 9, and storing an object in a substantially sealed state therein,
A container that discharges ions and / or ozone generated by the ion generator to the inside. A thermometer,
The storage device according to claim 18, for storing the thermometer therein,
A thermometer device characterized by comprising: