Blower device, control method, and program

Abstract

To provide a blower device having an electrode part generating air flow, and variably controlling voltage applied to every electrode part, while suppressing an enlargement of a circuit and increase of consumption power, a control method and a program thereof.SOLUTION: A blower device 100 has a blower part 101 having a plurality of discharge electrodes generating air flow 411, 412, and 413 and a power reception electrode 431, a boosting part 201, a voltage multiplication part 202, a power supply part 102 generating voltage applied to the discharge electrodes, and a control part 103 controlling air quantity of the blower part 101. The control part variably controls the discharge electrodes generating air flow by controlling voltage applied to every discharge electrode part, and controls the air quantity of the blower part 101.SELECTED DRAWING: Figure 1

Description

[Technical field]

[0001] The present invention relates to a blower having an electrode portion that generates an air flow. [Background technology]

[0002] Mobile devices such as smartphones and tablet computers need to be forcibly cooled by generating airflow using a fan or the like to prevent the operating time from being shortened due to heat generation. A known example of a device that generates an airflow for cooling is a blower that generates an ion wind by corona discharge.

[0003] To generate ionic wind by corona discharge, a voltage of several kilovolts must be applied between the discharge electrode and the receiving electrode, and the power consumption required to generate the same volume of air as a fan is greater than that of a fan. For this reason, in a blower that generates ionic wind by corona discharge, it is necessary to reduce unnecessary power consumption by controlling the volume of air as needed.

[0004] Patent Document 1 describes a technique for controlling the volume of ionic wind by varying the voltage applied to a plurality of discharge electrodes using a transformer connected to each of the discharge electrodes. [Prior art documents] [Patent documents]

[0005] [Patent Document 1] JP 2005-61812 A Summary of the Invention [Problem to be solved by the invention]

[0006] In Patent Document 1, in order to control the volume of the ionic wind, it is necessary to connect a transformer to multiple discharge electrodes. Since the voltage applied to the discharge electrodes is a high voltage of several kilovolts, the size of the transformer becomes large, and using multiple transformers results in a large circuit, making it difficult to install in a mobile device.

[0007] The present invention has been made in view of the above problems, and has an object to realize a technology that can variably control the voltage applied to each electrode portion while suppressing an increase in the size of the circuit and an increase in power consumption. [Means for solving the problem]

[0008] In order to solve the above problems and achieve the object, the power transmission device of the present invention comprises a blowing means having a plurality of electrode sections that generate an airflow, a power supply means that generates a voltage to be applied to the electrode sections, and a control means that controls the air volume of the blowing means, and the control means variably controls the electrode sections that generate the airflow by controlling the voltage applied to each electrode section. Effect of the Invention

[0009] According to the present invention, it is possible to variably control the voltage applied to each electrode portion while suppressing an increase in the size of the circuit and an increase in power consumption. [Brief description of the drawings]

[0010] [Figure 1] FIG. 2 is a block diagram illustrating the configuration of the blower device of the present embodiment. [Diagram 2] FIG. 2 is a circuit diagram illustrating the configuration of a power supply unit of the blower device of the present embodiment. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0011] Hereinafter, the embodiments will be described in detail with reference to the attached drawings. Note that the following embodiments do not limit the invention according to the claims. Although the embodiments describe a number of features, not all of these features are essential to the invention, and the features may be combined in any manner. Furthermore, in the attached drawings, the same reference numbers are used for the same or similar configurations, and duplicated descriptions are omitted.

[0012] The blower 100 of this embodiment is mounted on a mobile device such as a smartphone or a tablet computer, and generates an ion wind by corona discharge as an airflow for forced cooling in order to reduce a temperature rise due to heat generation in the mobile device.

[0013] First, the configuration and function of a blower device 100 of the present embodiment will be described with reference to FIG.

[0014] In FIG. 1, the blower device 100 includes a blower section 101 having an electrode section that generates an airflow, a power supply section 102 that generates a voltage [V] to be applied to the electrode section of the blower section 101, and a control section 103 that controls the air volume of the blower section 101.

[0015] The electrode section of the blower 101 includes a plurality of discharge electrodes 411, 412, 413 and a single power receiving electrode 431. The discharge electrodes 411, 412, 413 are conductive members having a thin, pointed tip, and are electrodes constituting the anode (emitter). The power receiving electrode 431 is a breathable mesh-like conductive member, and is an electrode constituting the negative electrode (collector) 4. The plurality of discharge electrodes 411, 412, 413 and the single power receiving electrode 431 are disposed opposite each other at a predetermined interval. In the blower 101, a corona discharge is generated by applying a voltage within a predetermined range (a voltage at which a corona discharge is generated) between each of the discharge electrodes 411, 412, 413 and the power receiving electrode 431, and an ion wind is generated.

[0016] The power supply unit 102 includes a boosting unit 201 and a voltage multiplying unit 202. The power supply unit 102 is connected to the discharge electrodes 411, 412, 413 of the blower unit 101 so as to be able to output different voltages to the discharge electrodes 411, 412, 413.

[0017] The boosting unit 201 includes a boosting circuit such as a transformer, and supplies an output voltage Vo obtained by boosting a power supply voltage to the voltage multiplier unit 202. The boosting unit 201 includes a circuit configuration capable of changing the output voltage Vo.

[0018] The voltage multiplier unit 202 has a plurality of voltage multiplier circuits. One voltage multiplier circuit is composed of two capacitors and two diodes. The voltage multiplier unit 202 has a plurality of voltage multiplier circuits connected in series, and outputs a voltage NxVo obtained by multiplying the output voltage Vo of the boost unit 201 by N from the Nth stage (N is a natural number) voltage multiplier circuit. Furthermore, the voltage multiplier unit 202 outputs different voltages for each of the discharge electrodes 411, 412, 413 of the blower unit 101 by connecting different voltage multiplier circuits of the voltage multiplier unit 202 to each of the discharge electrodes 411, 412, 413 of the blower unit 101. The different voltage multiplier circuits include a voltage multiplier circuit of the final stage and one or more voltage multiplier rectifier circuits connected in series to a stage preceding the voltage multiplier circuit of the final stage.

[0019] The control unit 103 controls the output voltage Vo of the boost unit 201. The control unit 103 changes the voltage applied from the power supply unit 102 to each of the discharge electrodes 411, 412, and 413 of the blower unit 101 by controlling the output voltage Vo of the booster unit 201. In this way, the control unit 103 controls the air volume of the blower unit 101 by variably controlling the discharge electrodes that generate airflow.

[0020] Next, the configuration and function of the power supply unit 102 of the blower device 100 of this embodiment will be described with reference to FIG.

[0021] In FIG. 2, the same components as those in FIG. 1 are denoted by the same reference numerals.

[0022] In FIG. 2, the control unit 103 applies a pulse signal to a FET (Field Effect Transistor) 304 for switching the transformer 303. The FET 304 is turned on or off by the pulse signal, and the capacitor 302 applies a pulse voltage to the primary winding 303a of the transformer 303. The transformer 303 boosts the pulsed voltage applied to the primary winding 303a and outputs it from the secondary winding 303b. The pulse voltage output from the secondary winding 303b of the transformer 303 is rectified by an N-stage voltage doubler rectifier circuit of the voltage multiplier 202. The capacitors 305 and 307 and the diodes 306 and 308 in the voltage multiplier 202 constitute a first-stage voltage doubler rectifier circuit 211, and are connected to the booster 201 via contacts 501 and 502. Furthermore, the capacitors 309, 311 and the diodes 310, 312 configure a second-stage voltage doubler rectifier circuit 212, which is connected in series with the first-stage voltage doubler rectifier circuit 211 via contacts 503, 504. The third and subsequent stages of voltage doubler rectifier circuits 213, 214, 215 are configured similarly to the first-stage voltage doubler rectifier circuit 211 and the second-stage voltage doubler rectifier circuit 212. In this manner, the voltage multiplier unit 202 includes a Cockcroft-Walton circuit in which a plurality of voltage doubler rectifier circuits 211, 212, 213, 214, 215, ... are connected in series.

[0023] The boost unit 201 supplies an AC voltage of amplitude ±V / 2 to the voltage multiplier unit 202 as the output voltage Vo through the contact 501. When a voltage -V / 2 is supplied to the contact 501, a current flows through the diode 306 of the first-stage voltage doubler rectifier circuit 211, so that a charge is accumulated in the capacitor 305, and a potential difference of a voltage V / 2 is generated in the capacitor 305. When a voltage +V / 2 is supplied to the contact 501, a current flows through the diode 308, so that a charge is accumulated in the capacitor 307, and a potential difference of a voltage V is generated in the capacitor 307 due to the output voltage Vo (=V / 2) of the transformer 303 and the voltage V / 2 of the capacitor 305. Similarly, in the second-stage voltage doubler rectifier circuit 212, when a voltage V is supplied to the contact 504 from the first-stage voltage doubler rectifier circuit 211, a potential difference of a voltage V is generated due to the charge accumulated in the capacitor 309, and a potential difference of a voltage 2V is generated due to the charge accumulated in the capacitor 311.

[0024] As described above, when the output voltage Vo is input from the boost unit 201 via the contact 501, the first-stage voltage doubler rectifier circuit 211 outputs a voltage V to the contact 504 to which the second-stage voltage doubler rectifier circuit 212 is connected. When the output voltage V is input from the first-stage voltage doubler rectifier circuit 211 via the contact 504, the second-stage voltage doubler rectifier circuit 212 outputs a voltage 2V to the contact 506 to which the next-stage voltage doubler rectifier circuit is connected.

[0025] The voltage multiplier unit 202 has multiple (N stages) voltage doubler rectifier circuits connected in series. In the example of FIG. 2, the voltage doubler rectifier circuit 215 is the Nth stage voltage doubler rectifier circuit and outputs a voltage N×V to a node 509.

[0026] Moreover, the voltage multiplier unit 202 is connected to each of the discharge electrodes 411, 412, 413 of the blower unit 101 so that the output voltages of the different voltage multiplier rectifier circuits of the voltage multiplier unit 202 are applied thereto.

[0027] The voltage multiplier unit 202 is connected to each of the discharge electrodes 411, 412, 413 of the blower unit 101 via contacts which are the outputs of different voltage multiplier rectifier circuits of the voltage multiplier unit 202 so that different output voltages are applied to the discharge electrodes 411, 412, 413 of the blower unit 101.

[0028] 2, a discharge electrode 411 is connected via a contact 509 which is the output of the Nth stage voltage doubler rectifier circuit 215. A discharge electrode 412 is connected via a contact 508 which is the output of the (N-1)th stage voltage doubler rectifier circuit 214. A discharge electrode 413 is connected via a contact 507 which is the output of the (N-2)th stage voltage doubler rectifier circuit 213.

[0029] In addition, in order to detect the voltage N×V that is the output of the Nth stage voltage doubler rectifier circuit 215 and control the output voltage Vo of the transformer 303, the contact 509 is connected to the inverting input terminal of the operational amplifier 347 that controls the on / off of the transistor 301. Resistors 345 and 346 are connected in series on the path from the contact 509 to the inverting input terminal of the operational amplifier 347. Since the resistors 345 and 346 need to regulate the voltage N×V of the contact 509 that is the output of the Nth stage of the voltage multiplier 202 to a constant voltage, resistors with high accuracy, for example, resistors with a resistance accuracy of ±1%, are used. The inverting input terminal of the operational amplifier 347 receives the voltage Vb obtained by dividing the voltage N×V of the contact 509 that is the output of the Nth stage of the voltage multiplier 202 by the resistors 345 and 346. Furthermore, a reference voltage source 348 is connected to a non-inverting input terminal of the operational amplifier 347, and an output voltage Vc of the reference voltage source 348 is input. Here, the voltage Vb input to the inverting input terminal of the operational amplifier 347 is related by the following formula 1, where the resistance values ​​[Ω] of the resistors 345 and 346 are R1 and R2, respectively. (Formula 1) Vb = (N × V R2) / R1 Moreover, the operational amplifier 347 controls the base voltage of the transistor 301 so that the voltage Vb of the inverting input terminal becomes equal to the reference voltage Vc of the non-inverting input terminal. In other words, the operational amplifier 347 controls the base voltage of the transistor 301 so that the voltage Vb of the inverting input terminal and the output voltage Vc of the reference voltage source 348 satisfy the following formula 2. (Formula 2) Vb = Vc For example, when the output voltage N×V of the Nth stage voltage doubler rectifier circuit 215 of the voltage multiplier unit 202 increases, and the voltage Vb of the inverting input terminal becomes larger than the reference voltage Vc of the non-inverting input terminal, the operational amplifier 347 turns off the transistor 301. As a result, the voltage of the capacitor 302 decreases. Therefore, the output voltage Vo of the transformer 303 decreases, and the output voltage N×V of the Nth stage voltage doubler rectifier circuit 215 of the voltage multiplier unit 202 decreases. On the other hand, when the output voltage N×V of the Nth stage voltage doubler rectifier circuit 215 of the voltage multiplier unit 202 decreases, and the voltage Vb of the inverting input terminal becomes smaller than the reference voltage Vc of the non-inverting input terminal, the operational amplifier 347 turns on the transistor 301. As a result, the voltage of the capacitor 302 increases. Therefore, the output voltage Vo of the transformer 303 increases, and the output voltage N×V of the Nth stage voltage doubler rectifier circuit 215 of the voltage multiplier unit 202 increases.

[0030] As described above, the power supply unit 102 controls the output voltage Vo of the boost unit 201 in accordance with the voltage Vc of the reference voltage source 348 so that the output voltage N×V of the N-th stage voltage doubler rectifier circuit 215 of the voltage multiplier unit 202 becomes a desired voltage.

[0031] Furthermore, the control unit 103 is capable of controlling the voltage Vc of the reference voltage source 348 by supplying a control signal to the reference voltage source 348. The control unit 103 is capable of changing the output voltage Vo of the boost unit 201 by variably controlling the voltage Vc of the reference voltage source 348, and is capable of changing the output voltage N×V of the N-th stage voltage doubler rectifier circuit 215 of the voltage multiplier unit 202.

[0032] Furthermore, the voltage multiplier 202 is connected to the discharge electrode 411 of the blower 101 via a contact 509 which is the output of the Nth stage voltage doubler rectifier circuit 215. When the output voltage N×V of the Nth stage voltage doubler rectifier circuit 215 reaches a predetermined voltage range, a corona discharge is generated between the discharge electrode 411 and the power receiving electrode 431, and an ion wind 421 is generated.

[0033] Furthermore, the voltage multiplier 202 is connected to the discharge electrode 412 of the blower 101 via a contact 508 which is the output of the (N-1)th voltage doubler rectifier circuit 214. When the output voltage (N-1)×V of the (N-1)th voltage doubler rectifier circuit 214 reaches a predetermined voltage range, a corona discharge is induced between the discharge electrode 412 and the power receiving electrode 431, and an ion wind 422 is generated.

[0034] Furthermore, the voltage multiplier 202 is connected to the discharge electrode 413 via a contact 507 which is the output of the N-2-th stage voltage doubler rectifier circuit 213. When the output voltage (N-2)×V of the N-2-th stage voltage doubler rectifier circuit 213 reaches a predetermined voltage range, a corona discharge is induced between the discharge electrode 413 and the power receiving electrode 431, and an ion wind 423 is generated.

[0035] In the following, an operation example will be described in which the multiple electrode units of the blower 101 include discharge electrodes 411, 412, and 413, and the discharge electrodes 411, 412, and 413 are connected to contacts that are the outputs of the 10th, 9th, and 8th stages of the voltage multiplier 202. Note that this embodiment is not limited to the number of discharge electrodes and the number of stages of the voltage multiplier rectifier in this example, as long as the outputs of the different voltage multiplier rectifier circuits of the voltage multiplier 202 and the different discharge electrodes of the blower 101 are connected to each other.

[0036] Further, in the following, an example will be described in which the predetermined voltage range is 4000 [V] to 5000 [V], but the present invention is not limited to this and may be any voltage range in which a corona discharge is generated between the discharge electrode and the power receiving electrode.

[0037] A state in which ion winds 421, 422, and 423 are generated from discharge electrodes 411, 412, and 413 of blower 101 is referred to as control 1. Control 1 is a control in which blower 101 generates a maximum amount of wind. In this case, controller 103 controls amplitude ±V / 2 (hereinafter, V / 2) of output voltage Vo of booster 201 so that the voltage applied to discharge electrodes 411, 412, and 413 falls within a predetermined range. Since the predetermined range in which corona discharge occurs between discharge electrodes 411, 412, and 413 and power receiving electrode 431 is 4000 [V] to 5000 [V], the amplitude V / 2 of output voltage Vo of booster 201 in control 1 is a value that satisfies the relationship of the following formula 3 for the number of stages N=8, 9, and 10. (Formula 3) 4000≦N×V≦5000 Therefore, in control 1, the control unit 103 controls the amplitude V / 2 of the output voltage Vo of the boost unit 201 to, for example, 250 [V]. In this case, voltages of 4000 [V], 4500 [V], and 5000 [V] are applied to the discharge electrodes 411, 412, and 413, respectively. The voltages applied to the discharge electrodes 411, 412, and 413 are all within a predetermined range, and ion winds 421, 422, and 423 are generated.

[0038] Next, a state in which ion winds 421, 422 are generated from discharge electrodes 411, 412 of blower 101 is referred to as control 2. In this case, controller 103 controls amplitude V / 2 of output voltage Vo of booster 201 so that the voltage applied to discharge electrodes 411, 412 falls within a predetermined range. The amplitude V / 2 of output voltage Vo of booster 201 in control 2 is a value that satisfies formula 3 above for number of stages N=9, 10.

[0039] Therefore, in control 2, the control unit 103 controls the amplitude V / 2 of the output voltage Vo of the boost unit 201 to, for example, 225 [V]. In this case, voltages of 4500 [V], 4050 [V], and 3600 [V] are applied to the discharge electrodes 411, 412, and 413, respectively. The voltages applied to the discharge electrodes 411 and 412 are all within a predetermined range, and ion winds 421 and 422 are generated. On the other hand, the voltage applied to the discharge electrode 413 is lower than the minimum voltage of the predetermined range and is outside the predetermined range, so that ion wind 423 is not generated.

[0040] Furthermore, a state in which ion wind 421 is generated only from discharge electrode 411 of blower 101 is defined as control 3. In this case, controller 103 controls amplitude V / 2 of output voltage Vo of booster 201 so that the voltage applied to discharge electrode 411 falls within a predetermined range. Amplitude V / 2 of output voltage Vo of booster 201 in control 3 is a value that satisfies the relationship of formula 3 above when number of stages N=10.

[0041] Therefore, in control 3, the control unit 103 controls the amplitude V / 2 of the output voltage Vo of the boost unit 201 to, for example, 200 [V]. In this case, voltages of 4000 [V], 3600 [V], and 3200 [V] are applied to the discharge electrodes 411, 412, and 413, respectively. The voltage applied to the discharge electrode 411 is within a predetermined range, and ion wind 421 is generated. On the other hand, the voltages applied to the discharge electrodes 412 and 413 are lower than the minimum voltage of the predetermined range and are outside the predetermined range, so that ion winds 422 and 423 are not generated.

[0042] As described above, according to this embodiment, the control unit 103 can simultaneously change the output voltages of the N-th stage voltage doubler rectifier circuit 215, the N-1-th stage voltage doubler rectifier circuit 214, and the N-2-th stage voltage doubler rectifier circuit 213 by controlling the amplitude V / 2 of the output voltage Vo of the boost unit 201.

[0043] Then, by variably controlling the number of discharge electrodes to which a voltage within a predetermined range of blower 101 is applied (i.e., discharge electrodes that generate airflow), it becomes possible to control the airflow of blower 101. Also, by switching between control 1, control 2, and control 3, it becomes possible to adjust the airflow of blower 101 to a required airflow.

[0044] In control 2 and control 3, a high voltage such as 3600 [V] or 3200 [V] is applied to the discharge electrodes that do not blow air. The control unit 103 controls the voltage applied to the discharge electrodes that do not blow air so that it is always outside a predetermined range. Therefore, in the discharge electrodes that do not blow air, no corona discharge is generated and no current flows, so no power consumption is generated. As a result, the blower 100 of this embodiment can reduce power consumption by generating corona discharge in the optimal number of discharge electrodes to generate the required amount of air.

[0045] [Other embodiments] The present invention can also be realized by a process in which a program for implementing one or more of the functions of the above-described embodiments is supplied to a system or device via a network or a storage medium, and one or more processors in a computer of the system or device read and execute the program. The present invention can also be realized by a circuit (e.g., ASIC) that implements one or more of the functions.

[0046] The invention is not limited to the above-described embodiments, and various modifications and variations are possible without departing from the spirit and scope of the invention. Accordingly, the following claims are appended to apprise the public of the scope of the invention.

[0047] The disclosure of this specification includes the following blower device, control method, and program. [Configuration 1] A blowing means having a plurality of electrode portions for generating an air flow; A power supply means for generating a voltage to be applied to the electrode portion; A control means for controlling the air volume of the air blowing means, The air blower according to claim 1, wherein the control means variably controls the electrode unit that generates the airflow by controlling a voltage applied to each of the electrode units. [Configuration 2] 2. The blower according to claim 1, wherein the control means variably controls the number of the electrode parts generating the airflow by controlling a voltage applied to each of the electrode parts. [Configuration 3] 3. The air blowing device according to claim 1 or 2, wherein the air blowing means generates the airflow from an electrode portion to which a voltage within a predetermined range is applied, among the plurality of electrode portions. [Configuration 4] 4. The air blower according to any one of configurations 1 to 3, wherein the power supply means generates different voltages for the electrode portions. [Configuration 5] 5. The air blower according to any one of configurations 1 to 4, wherein the control means variably controls the voltage generated by the power supply means and applied to each electrode portion. [Configuration 6] 6. The air blowing device according to any one of configurations 1 to 5, wherein the air blowing means generates the airflow by discharging the electrode portion. [Configuration 7] The blower device according to any one of configurations 1 to 6, wherein the power supply means includes a boost unit that boosts the power supply voltage, and a voltage multiplier unit that outputs a voltage that is N times (N is a natural number) the output voltage of the boost unit. [Configuration 8] 8. The blower according to claim 7, wherein the voltage multiplier section includes a plurality of voltage doubler rectifier circuits, each including a capacitor and a diode, connected in series. [Configuration 9] 9. The blower device according to configuration 8, wherein each of the plurality of electrode units is connected to an output of a different one of the plurality of voltage doubler rectifier circuits. [Configuration 10] The different voltage doubler rectifier circuits include a final-stage voltage doubler rectifier circuit and one or more voltage doubler rectifier circuits connected in series to a stage preceding the final-stage voltage doubler rectifier circuit. The blower device according to configuration 9. [Configuration 11] 11. The blower device according to any one of configurations 7 to 10, wherein the boost section supplies an AC voltage to the voltage multiplier section. [Configuration 12] The blower device according to configuration 11, characterized in that when the amplitude of the AC voltage is ±V / 2, a voltage of N×V is output from an N-th stage (N is a natural number) voltage doubler rectifier circuit of the voltage multiplier section. [Configuration 13] The blower according to any one of configurations 7 to 12, wherein the control means controls the AC voltage of the boost unit to simultaneously change outputs of an N-stage voltage doubler rectifier circuit, an N-1-stage voltage doubler rectifier circuit, and an N-2-stage voltage doubler rectifier circuit. [Configuration 14] The plurality of electrode units include a plurality of discharge electrodes, 14. The blower device according to any one of configurations 1 to 13, wherein the blowing means generates the airflow by generating a corona discharge when a voltage within a predetermined range is applied between the discharge electrode and the power receiving electrode. [Configuration 15] A method for controlling a blower, comprising: The blower device is A blowing means having a plurality of electrode portions for generating an air flow; A power supply means for generating a voltage to be applied to the electrode portion, The control method includes: A step of controlling the air volume of the air blowing means, A control method characterized in that in the controlling step, the electrode unit that generates the airflow is variably controlled by controlling a voltage applied to each of the electrode units. [Configuration 16] A program for causing a computer to function as the blower device according to any one of claims 1 to 14. [Explanation of symbols]

[0048] 100...blower device, 101...blower section, 102...power supply section, 103...control section, 201...booster section, 202...voltage multiplier section, 211-215...voltage doubler rectifier circuit, 411-413...discharge electrodes, 421-423...ion wind, 431...power receiving electrode

Claims

1. A blowing means having multiple electrode sections that generate airflow, A power supply means for generating a voltage applied to the electrode portion, The system includes a control means for controlling the airflow rate of the aforementioned blowing means, The blower is characterized in that the control means controls the voltage applied to each electrode to variably control the electrode that generates the airflow.

2. The blower according to claim 1, characterized in that the control means controls the number of electrode sections that generate the airflow by controlling the voltage applied to each electrode section.

3. The blowing means is characterized in that the electrode portion to which a predetermined range of voltages is applied generates the airflow, as described in claim 1.

4. The blower according to claim 1, characterized in that the power supply means generates a different voltage for each electrode section.

5. The blower according to claim 1, characterized in that the control means variably controls the voltage applied to each electrode portion generated by the power supply means.

6. The blowing device according to claim 1, characterized in that the blowing means generates the airflow by the discharge of the electrode portion.

7. The blower according to claim 1, characterized in that the power supply means includes a boosting unit for boosting the power supply voltage and a voltage multiplier unit that outputs a voltage obtained by multiplying the output voltage of the boosting unit by N (where N is a natural number).

8. The blower according to claim 7, characterized in that the voltage multiplier unit has a plurality of voltage doubler rectifier circuits, each including a capacitor and a diode, connected in series.

9. The blower according to claim 8, characterized in that each of the plurality of electrode sections is connected to the output of a different voltage doubling rectifier circuit among the plurality of voltage doubling rectifier circuits.

10. The blower according to claim 9, characterized in that the different voltage doubler rectifier circuits include a final-stage voltage doubler rectifier circuit and one or more voltage doubler rectifier circuits connected in series with the final-stage voltage doubler rectifier circuit.

11. The blower according to claim 8, characterized in that the voltage boosting unit supplies an AC voltage to the voltage multiplier unit.

12. The blower according to claim 11, characterized in that when the amplitude of the AC voltage is ±V / 2, a voltage of N × V is output from the Nth stage (N is a natural number) voltage doubling rectifier circuit of the voltage multiplier unit.

13. The blower according to claim 12, characterized in that the control means simultaneously changes the output of the Nth stage voltage doubler rectifier circuit, the N-1st stage voltage doubler rectifier circuit, and the N-2nd stage voltage doubler rectifier circuit by controlling the AC voltage of the boosting section.

14. The plurality of electrode portions include a plurality of discharge electrodes, The blowing device according to claim 1, characterized in that the blowing means generates the airflow by causing a corona discharge when a voltage within a predetermined range is applied between the discharge electrode and the power receiving electrode.

15. A method for controlling a blower, The aforementioned blower device is A blowing means having multiple electrode sections that generate airflow, It includes a power supply means for generating a voltage to be applied to the electrode portion, The control method described above is The step includes controlling the airflow rate of the blowing means, The control method is characterized in that, in the control step, the electrode portion that generates the airflow is variably controlled by controlling the voltage applied to each electrode portion.

16. A program for causing a computer to function as a blower according to any one of claims 1 to 14.

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