WO2018189787A1 - Hand dryer - Google Patents

Abstract

This hand dryer includes: a casing having a hand insertion unit into which a hand can be inserted; a blowing unit that delivers a flow of air jetted in the hand insertion unit; and a hand detection unit (15) that detects the hand when inserted into the hand insertion unit. The hand dryer also includes: a power supply unit (24) that has a booster circuit which boosts DC voltage; a drive circuit (25) that drives the blowing unit by receiving power supply from the power supply unit; and a control processing unit (26) that controls operation of the booster circuit on the basis of result data which represents the results of whether a hand has been detected by the hand detection unit.

Description

Hand dryer

The present invention relates to a hand dryer for drying wet hands.

In order to preserve hand hygiene, it is required that the hand is properly washed and the wet hand after washing is hygienically dried. In order to enable sanitary drying of the hand, a hand drying device that blows off water droplets by jetting air flow to dry the hand may be used.

When a hand is detected in the hand insertion part of the hand drying device, the hand drying device activates the blower and jets an air flow at the hand insertion unit. When the hand is pulled out from the hand insertion portion and the hand is no longer detected, the hand drying device stops the blower. The hand dryer is required to be able to shorten the time from the detection of the hand to the start of the blower. Moreover, the hand dryer is required to reduce standby power when the blower is stopped.

Patent Document 1 discloses a blower including a boost converter unit that boosts an AC voltage supplied from an AC power source and converts it into a DC voltage. The blower can be reduced in size and increase in the amount of blown air by boosting in the boost converter unit.

Patent Document 2 discloses a technique in which a hand dryer is provided with a clock function and the interval of intermittent driving of the hand detection unit is switched according to a time zone. The hand dryer can reduce standby power while reducing troubles during use of the hand dryer by increasing the drive interval in a time zone in which the frequency of use is low.

Japanese Patent No. 5158101 JP 2002-177165 A

In the manual drying apparatus including the blower according to the technique of Patent Document 1, when the boost converter unit is operated after the hand is detected, the blower is started for the time required to boost the direct current to a desired voltage value. It will be late. If the step-up converter unit is always operated to enable the blower to be started quickly, standby power of the hand dryer increases. The hand dryer according to the technique of Patent Document 2 requires work for setting a time zone. The hand dryer is required to be able to shorten the time required to start blowing and to reduce standby power.

The present invention has been made in view of the above, and an object of the present invention is to obtain a hand drying device that can shorten the time required to start blowing and can reduce standby power.

In order to solve the above-described problems and achieve the object, a hand drying device according to the present invention sends out a housing including a hand insertion part into which a hand can be inserted and an air flow to be ejected by the hand insertion part. A blower unit, a hand detection unit that detects a hand inserted into the hand insertion unit, a power supply unit that includes a booster circuit that boosts a DC voltage, and a drive circuit that receives power supply from the power supply unit and drives the blower unit And a control processing unit that controls the operation of the booster circuit based on performance data indicating the presence / absence of hand detection by the hand detection unit.

The hand-drying device according to the present invention has an effect that the time required to start blowing can be shortened and standby power can be reduced.

The perspective view of the hand-drying apparatus concerning Embodiment 1 of this invention. Sectional view of the hand dryer in line II-II in FIG. The figure which shows the structure of the control part shown in FIG. The figure which shows the structure of the control part concerning the modification of Embodiment 1. FIG. Block diagram showing the functional configuration of the microcontroller shown in FIG. Block diagram showing the hardware configuration of the microcontroller shown in FIG. The figure explaining control of pressure | voltage rise operation | movement at the time of standby by the hand dryer of Embodiment 1 The flowchart which shows the procedure of the operation | movement for storage of the performance data in the microcontroller shown in FIG. The figure which shows the example of the performance data stored in the performance data storage part shown in FIG. 5, and the parameter stored in the parameter storage part The flowchart which shows the procedure of control of the pressure | voltage rise operation | movement by the hand dryer of Embodiment 1. The flowchart which shows the procedure of control of the pressure | voltage rise operation | movement by the hand dryer of Embodiment 1. The figure explaining control of pressure | voltage rise operation | movement by the hand-drying apparatus concerning Embodiment 2 of this invention. The figure which shows the example of the performance data stored in the performance data storage part shown in FIG. 5, and the parameter stored in the parameter storage part The figure explaining control of the pressure | voltage rise operation | movement by the hand dryer concerning Embodiment 3 of this invention. The figure which shows the example of the performance data stored in the performance data storage part shown in FIG. 5, and the determined parameter The figure explaining control of pressure | voltage rise operation | movement by the hand dryer concerning Embodiment 4 of this invention. The flowchart explaining control of the pressure | voltage rise operation | movement by the hand dryer concerning Embodiment 5 of this invention. The figure which shows the structure of the control part with which the hand-drying apparatus concerning Embodiment 7 of this invention was equipped. The figure which shows the example of the performance data stored in the performance data storage part shown in FIG. The figure which shows the structure of the control part with which the hand dryer concerning Embodiment 8 of this invention was equipped. The figure explaining control of the pressure | voltage rise operation | movement by the hand dryer concerning Embodiment 9 of this invention. The figure which shows the example of the performance data stored in the performance data storage part shown in FIG. 5, and the example of frequency The figure explaining control of the pressure | voltage rise operation | movement by the hand dryer concerning Embodiment 10 of this invention. The figure which shows the example of the performance data stored in the performance data storage part shown in FIG. 5, and the example of frequency

Hereinafter, a hand dryer according to an embodiment of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a perspective view of a hand dryer 1 according to a first embodiment of the present invention. The hand dryer 1 has a housing 3 including a hand insertion portion 2 into which a hand can be inserted. The upper part and both side parts of the manual insertion part 2 are open. The hand insertion part 2 can insert a hand from an upper part and both side parts. The housing 3 forms the entire outer shell of the hand dryer 1. The front part 4 is a part of the housing 3 and is on the front side of the hand insertion part 2. The back part 5 is a part of the housing 3 and is a part on the back side of the hand insertion part 2. The front side is the side where the user who uses the hand dryer 1 is seen from the hand dryer 1. The back side is the side opposite to the front side when viewed from the hand dryer 1.

The water receiving part 6 is located at the lowermost part of the hand insertion part 2. The water receiver 6 is provided with a drain outlet for discharging the received water to the drain tank 7. The housing 3 is provided with a drainage channel through which water from the drainage port flows to the drain tank 7. In FIG. 1 and FIG. 2 to be described later, illustration of a drain outlet and a drainage channel is omitted. The drain tank 7 stores water from the drainage channel. The drain tank 7 is provided on the front side of the lower portion of the housing 3. The drain tank 7 is removable from the housing 3.

FIG. 2 is a cross-sectional view of the hand dryer 1 taken along the line II-II in FIG. The hand drying device 1 includes a blower 10 that is a blower unit that sends out an air flow to be ejected by the hand insertion unit 2. The blower 10 is provided inside the housing 3. The blower 10 includes a direct current (DC) brushless motor 21 that is a drive source, and a turbo fan 22 that rotates by driving the DC brushless motor 21.

The nozzle 11 is provided on the surface of the front portion 4 on the hand insertion portion 2 side. The nozzle 12 is provided on the surface of the back surface portion 5 on the hand insertion portion 2 side. The hand drying device 1 causes the air flow that has passed through the duct 13 in the front part 4 from the blower 10 to be ejected from the nozzle 11 at the hand insertion part 2. The hand drying device 1 causes the air insertion unit 2 to inject the air flow that has passed through the duct 14 inside the back surface portion 5 from the blower 10 through the nozzle 12.

The hand dryer 1 includes a sensor 15 that is a hand detection unit that detects a hand inserted into the hand insertion unit 2. The sensor 15 is built in the back surface portion 5. One example of the sensor 15 is a distance measuring sensor. The sensor 15 that is a distance measuring sensor includes a light emitting element that emits infrared light and a light receiving element that detects infrared light reflected by a hand that is a measurement object. In FIG. 2, illustration of the light emitting element and the light receiving element is omitted. The sensor 15 detects the presence or absence of a hand in the hand insertion portion 2 based on the angle of infrared light incident on the light receiving element. The sensor 15 may be a sensor other than the distance measuring sensor as long as it can detect the hand inserted into the hand insertion unit 2. The sensor 15 may be built in the front part 4.

The intake port 16 is provided at a position on the back side in the lower part of the housing 3. The blower 10 takes in an air flow from the intake port 16 to the duct 17 inside the housing 3 and sends out the air flow from the duct 17 to the ducts 13 and 14. An air filter 18 is attached to the intake port 16 to remove foreign substances from the air flow taken into the duct 17. The hand dryer 1 may include a heater that heats the air flow sent to the ducts 13 and 14.

Inside the housing 3, a control unit 20 that controls the entire hand dryer 1 is provided. When the hand is detected by the sensor 15, the control unit 20 activates the blower 10. When the hand is removed from the hand insertion unit 2 and the hand is not detected by the sensor 15, the control unit 20 stops the blower 10.

FIG. 3 is a diagram showing a configuration of the control unit 20 shown in FIG. The control unit 20 includes a power supply unit 24 including a booster circuit that boosts a DC voltage, a drive circuit 25 that receives power supply from the power supply unit 24 and drives the DC brushless motor 21, and a microcontroller 26 that is a control processing unit. Is provided.

The rectifier circuit 31 of the power supply unit 24 is connected to the commercial AC power supply 23. The rectifier circuit 31 outputs a DC voltage by full-wave rectification of the AC voltage from the commercial AC power supply 23. The voltage dividing resistor 32 as voltage detecting means is connected between the DC bus 42 on the positive voltage side and the DC bus 43 on the negative voltage side on the output side of the rectifier circuit 31. The inductor 33, the switching element 34, and the fast recovery diode 35 of the power supply unit 24 constitute a boost converter unit 30 that is a boost circuit. Boost converter unit 30 raises the voltage value of the DC voltage from rectifier circuit 31 to a predetermined voltage value.

The inductor 33 is connected to the DC bus 42. The switching element 34 is connected between the DC buses 42 and 43 on the output side of the inductor 33. The switching element 34 is a MOSFET (Metal Oxide Semiconductor Field Effect Transistor) or IGBT (Insulated Gate Bipolar Transistor) which is a semiconductor element having a switching function.

The anode of the fast recovery diode 35 is connected to the output side of the inductor 33. A voltage dividing resistor 36 as voltage detecting means is connected between the DC buses 42 and 43 on the cathode side of the fast recovery diode 35. The smoothing capacitor 37 is connected between the DC buses 42 and 43 on the output side of the voltage dividing resistor 36. The control power supply circuit 38 is connected between the DC buses 42 and 43 on the output side of the smoothing capacitor 37. A resistor 39 serving as a current detecting means is connected between the voltage dividing resistor 32 and the switching element 34 in the DC bus 43.

When the switching element 34 is turned on, electric charge is stored in the inductor 33. When the switching element 34 is switched from on to off, the inductor 33 releases the stored charge. The smoothing capacitor 37 is charged by supplying electric charge from the inductor 33 through the first recovery diode 35. The smoothing capacitor 37 reduces noise by smoothing the voltage.

A switching control IC (Integrated Circuit) 40 controls the switching operation of the switching element 34. The switching control IC 40 detects the DC voltage output from the rectifier circuit 31 with the voltage dividing resistor 32. The switching control IC 40 detects the current from the inductor 33 with the resistor 39. The switching control IC 40 detects the voltage output from the boost converter unit 30 by the voltage dividing resistor 36. The switching control IC 40 controls the operation of the switching element 34 based on these detection results, thereby matching the phase of the voltage and the phase of the current after rectification.

The switching control IC 40 functions as a power factor correction circuit that suppresses the generation of harmonic current components by adjusting the voltage phase and the current phase to coincide with each other to bring the power factor of the power supply unit 24 close to 1. Boost converter unit 30 functions as an active filter for suppressing harmonic current components. Furthermore, the switching control IC 40 performs adjustment so that the voltage value from the boost converter unit 30 becomes a desired voltage value by controlling the operation of the switching element 34.

The control power supply circuit 38 supplies power to the drive circuit 25, the microcontroller 26, and the switching control IC 40. The switching element 41 is a semiconductor element having a switching function, and is a bipolar transistor. The switching element 41 is connected to the microcontroller 26, the control power supply circuit 38 and the switching control IC 40.

When the hand is detected by the sensor 15, the microcontroller 26 supplies a current to the base of the switching element 41 to turn on the switching element 41. When the switching element 41 is turned on, the power of the control power supply circuit 38 is supplied to the switching control IC 40. The switching control IC 40 turns on the switching element 34 when power is supplied. When the switching element 34 is turned on, the boost converter unit 30 starts the boost operation. When the voltage output from boost converter unit 30 reaches a desired voltage value, control power supply circuit 38 supplies power to drive circuit 25. The drive circuit 25 drives the DC brushless motor 21 when power is supplied. The microcontroller 26 controls on / off of the boosting operation of the boost converter unit 30 by switching the switching element 41 on and off. Further, the microcontroller 26 performs feedback control of the drive circuit 25.

Note that the control unit 20 may include the function of the switching control IC 40 in the function of the microcontroller 26. FIG. 4 is a diagram illustrating a configuration of the control unit 20 according to the modification of the first embodiment. In the modification, the microcontroller 26 controls the switching operation of the switching element 34. The microcontroller 26 detects the DC voltage output from the rectifier circuit 31 with the voltage dividing resistor 32. The microcontroller 26 detects the current from the inductor 33 with the resistor 39. The microcontroller 26 detects the voltage output from the boost converter unit 30 by the voltage dividing resistor 36. The microcontroller 26 controls the operation of the switching element 34 based on these detection results, thereby matching the phase of the voltage and the phase of the current after rectification. Furthermore, the microcontroller 26 performs adjustment so that the voltage value from the boost converter unit 30 becomes a desired voltage value by controlling the operation of the switching element 34. The microcontroller 26 controls on / off of the boost operation of the boost converter unit 30 by switching the switching element 34 on and off.

FIG. 5 is a block diagram showing a functional configuration of the microcontroller 26 shown in FIG. The microcontroller 26 is an input unit 51 that is a functional unit that receives an input from the sensor 15, a control calculation unit 52 that is a functional unit that performs control and calculation of the entire microcontroller 26, and a functional unit that stores data. And a storage unit 53.

The control calculation unit 52 includes a storage processing unit 54 that is a functional unit that executes processing for storing actual data regarding hand detection, a timer 55 that is a functional unit that measures time, and a boosting voltage of the boosting converter unit 30. A boost control unit 56 that is a functional unit for controlling the operation. The storage unit 53 includes a performance data storage unit 57 that is a functional unit that stores performance data by the processing of the storage processing unit 54, and a parameter storage unit 58 that stores various parameters for controlling the boosting operation.

The function of the microcontroller 26 is executed on a program analyzed and executed by the microcontroller 26. Note that some of the functions of the microcontroller 26 may be executed on hardware by wired logic.

FIG. 6 is a block diagram showing a hardware configuration of the microcontroller 26 shown in FIG. The microcontroller 26 includes a CPU (Central Processing Unit) 61 that executes various processes, a ROM (Read Only Memory) 62 that is a nonvolatile memory, a RAM (Random Access Memory) 63 that includes a program storage area and a data storage area, , An EEPROM (Electrically Erasable Programmable Read Only Memory) 64, which is a rewritable nonvolatile memory, and an input interface (I / F) 65. Each unit shown in FIG. 6 is connected to each other via a bus 66.

The ROM 62 stores programs for various processes. The program is loaded into the RAM 63. The CPU 61 develops a program in the program storage area in the RAM 63 and executes various processes. The data storage area in the RAM 63 is a work area for executing various processes. The EEPROM 64 stores various data. The function of the control calculation unit 52 shown in FIG. 5 is realized using the CPU 61. The function of the storage unit 53 is realized using the EEPROM 64. The function of the input unit 51 is realized using the input I / F 65. Note that the microcontroller 26 may include a built-in memory other than the EEPROM 64. The function of the storage unit 53 may be realized using an internal memory.

Next, control of the boost converter unit 30 by the microcontroller 26 will be described. The step-up control unit 56 of the microcontroller 26 turns on the step-up operation when the sensor 15 detects a hand when the step-up operation of the step-up converter unit 30 is off. In addition, the boost control unit 56 turns off the boost operation when the sensor 15 stops detecting the hand. In addition to this, the boost control unit 56 also has the boost converter unit 30 based on the record data stored in the record data storage unit 57 shown in FIG. 5 while waiting for the hand to be detected by the sensor 15. Enables control to turn on the boost operation. Based on the past data in the first cycle period, the microcontroller 26 increases the pressure when waiting for hand detection by the sensor 15 in the second cycle period after the first cycle period. The operation of the converter unit 30 is controlled.

The actual data is data representing the actual presence / absence of hand detection by the sensor 15. The storage processing unit 54 of the microcontroller 26 shown in FIG. 5 converts the presence / absence of hand detection in unit time, which is a preset time, into data based on the detection result of the sensor 15, and uses time-series data. A certain result data is accumulated in the result data storage unit 57. In the first embodiment, the unit time is 10 seconds. The step-up control unit 56 controls the step-up operation of the step-up converter unit 30 based on performance data in a preset cycle period. In the first embodiment, the cycle period is 24 hours. A parameter indicating the cycle period and a parameter indicating the unit time are stored in the parameter storage unit 58. Note that the length of the unit time and the length of the cycle period can be arbitrarily set.

The boost control unit 56 grasps the time when the hand is detected in the past cycle period which is the first cycle period from the actual data, and at the time of standby in the current cycle period which is the second cycle period. The time for turning on the boosting operation and the time for turning off the boosting operation are determined. The microcontroller 26 controls the step-up operation during standby based on the usage record of the hand dryer 1 in the past cycle.

The microcontroller 26 turns on the boosting operation when the same time as the time when the hand dryer 1 was used in the past cycle period is near. Further, the microcontroller 26 turns off the boosting operation in the same time zone as the time zone in which the hand dryer 1 is not used in the past cycle period. The hand dryer 1 can reduce standby power as compared with the case where the boosting operation is always on during the entire cycle period. Moreover, since the use of the hand dryer 1 is expected when the time when the hand dryer 1 has been used in the past is approaching, the hand dryer 1 turns on the boosting operation. When the use of the hand dryer 1 is expected, the hand dryer 1 can stand by in a state where air blowing can be started immediately.

FIG. 7 is a diagram for explaining the control of the boosting operation during standby by the hand dryer 1 according to the first embodiment. FIG. 7 shows a time chart of actual data in the past cycle period C-1 that is the first cycle period and a time chart of the state of the boosting operation in the current cycle period C0 that is the second cycle period. Show. In FIG. 7, the time axis representing the time T-1 of the cycle period C-1 and the time axis representing the time T0 of the current cycle period C0 are shown by matching the same time with different dates. Note that “−1” in the cycle period “C-1” indicates a cycle period immediately before the cycle period “C0”.

In the performance data, “0” indicates that the hand is not detected by the sensor 15, and “1” indicates that the hand is detected by the sensor 15. The rising edge of the time chart represents “1” of the actual data, and the falling edge represents “0” of the actual data. As for the state of the boosting operation, the rising edge of the time chart represents a state where the boosting operation is on. Assume that the falling edge of the time chart represents a state where the boosting state is OFF.

Suppose that a hand is detected in a unit time starting from time t1 of cycle period C-1. The microcontroller 26 turns on the boosting operation at a time earlier by the parameter α than the same time t1 in the cycle period C0. The parameter α is a start parameter for setting at the start of the boost operation. In the first embodiment, the parameter α is a predetermined time set to 120 seconds. Further, the microcontroller 26 turns off the boosting operation at a time later by the parameter β from the time t1. The parameter β is an end parameter for setting at the end of the boosting operation. In the first embodiment, the parameter β is a predetermined time set in advance and is 120 seconds. The parameter α and the parameter β are stored in the parameter storage unit 58 shown in FIG. Note that the value of the parameter α and the value of the parameter β can be arbitrarily set.

Similarly to the time t1, the microcontroller 26 controls the boosting operation on and off at each time t2, t3, t4, t5, and t6 when the hand is detected. Each unit time at time t3 and time t4 is the time earlier by parameter α from time t4 before parameter β elapses from time t3. The microcontroller 26 continues the state in which the step-up operation is turned on from the time earlier by the parameter α than the time t3 to the time later by the parameter β than the time t4.

FIG. 8 is a flowchart showing an operation procedure for storing the record data in the microcontroller 26 shown in FIG. In one example, the microcontroller 26 executes the operation shown in FIG. 8 when the actual data is not stored in the actual data storage unit 57 when the hand dryer 1 is turned on. The microcontroller 26 may execute the operation shown in FIG. 8 even when updating the performance data. The microcontroller 26 may always accumulate the performance data when the power of the hand dryer 1 is turned on.

When starting the operation for storing the result data, the microcontroller 26 starts counting by the timer 55 in step S1. In one example, timer 55 continues to count at 1 second intervals. In addition, the storage processing unit 54 monitors the presence or absence of hand detection by the sensor 15 while referring to the count value representing the number of counts by the timer 55. In step S <b> 2, the storage processing unit 54 determines whether or not the time from the start of the count has reached a unit time of 10 seconds based on the count value of the timer 55. When the time from the start of the count has not reached the unit time (step S2: No), the microcontroller 26 continues to count the time in the timer 55 until the time from the start of the count reaches the unit time.

When the time from the start of the count has reached the unit time (step S2: Yes), the storage processing unit 54 sends data indicating the presence or absence of hand detection within the unit time to the result data storage unit 57 in step S3. Store. If no hand is detected within the unit time, the storage processing unit 54 writes “0” to the data storage location for the unit time in the result data storage unit 57. If a hand is detected within the unit time, the storage processing unit 54 writes “1” to the data storage location for the unit time in the result data storage unit 57.

Next, the storage processing unit 54 resets the count value of the timer 55 in step S4. In step S <b> 5, the storage processing unit 54 refers to the cycle period parameter stored in the parameter storage unit 58, and determines whether or not the storage of the record data for the cycle period is completed.

If the storage of performance data for the cycle period has not been completed (step S5: No), the microcontroller 26 returns to step S1 and continues the operation for obtaining data for the next unit time. When the storage of the record data for the cycle period is completed (step S5: Yes), the microcontroller 26 ends the operation for storing the record data. The microcontroller 26 may continue the operation for storing the result data for the next cycle period after the storage of the result data for one cycle period is completed.

FIG. 9 is a diagram illustrating an example of the result data stored in the result data storage unit 57 illustrated in FIG. 5 and the parameters stored in the parameter storage unit 58. The data number is a number representing the order of unit times in the time series of the result data. In the example shown in FIG. 9, the data numbers are allocated every 10 seconds, which is a unit time, in 24 hours, which is the cycle period C-1 when the actual data is acquired. (I) indicating the data number is an integer from 1 to 8640. The detection data is data indicating the presence / absence of hand detection per unit time. The detection data “0” indicates that no hand is detected in the unit time. The detection data “1” indicates that a hand has been detected in a unit time.

In the example shown in FIG. 9, a fixed value of 120 seconds is set for both the parameter α and the parameter β. Note that “unit time start point T-1 (i)”, “step-up operation start time T0on (i)”, and “step-up operation end time T0off (i)” shown in FIG. It is assumed that the parameters are calculated in the process and are not stored in the storage unit 53. The unit (s) of each parameter of α, β, T-1 (i), T0on (i), and T0off (i) shown in FIG. 9 represents seconds. T-1 (i), T0on (i), and T0off (i) represent each time by the time elapsed from the start point of the cycle period of the actual data.

The microcontroller 26 determines a start time T0on (i) that is a timing for starting the boosting operation of the boosting converter unit 30 based on the data number of the detection data “1” indicating that the hand has been detected. Further, the microcontroller 26 determines an end time T0off (i), which is a timing at which the boosting operation of the boosting converter unit 30 is terminated, based on the data number of the detection data “1” indicating that the hand has been detected. .

Here, the determination of the start time T0on (i) and the end time T0off (i) will be described with reference to FIG. Based on the record data read from the record data storage unit 57, the boost control unit 56 of the microcontroller 26 determines the start point T-1 (i) of the unit time at which the detection data is “1” in each unit time. calculate. In the example shown in FIG. 9, for the data number “119” whose detection data is “1”, T-1 (119), which is the start point of the unit time, is calculated as 1180 seconds.

The boost control unit 56 subtracts the parameter α from the starting point T-1 (i) of the unit time for the past cycle period C-1 to thereby determine the boost operation start time T0on (i) for the current cycle period C0. Ask. In the example shown in FIG. 9, the boost control unit 56 calculates the start time T0on (119) = 1060 (s) by subtracting α = 120 (s) from T−1 (119) = 1180 (s). . The boost control unit 56 turns on boost of the boost converter unit 30 at the calculated start time T0on (i).

Further, the boost control unit 56 adds the parameter β to the start point T-1 (i) of the unit time for the past cycle period C-1, thereby to end the boost operation end time T0off (for the current cycle period C0). i) is determined. In the example shown in FIG. 9, the boost control unit 56 calculates the end time T0off (119) = 1300 (s) by adding β = 120 (s) to T-1 (119) = 1180 (s). To do. The boost control unit 56 turns off the boost of the boost converter unit 30 at the calculated end time T0off (i).

In the example shown in FIG. 9, for the data number “5” where the detection data is “1”, T-1 (5), which is the start point of the unit time, is 40 seconds, and the boosting operation start time T0on (5) Is calculated as minus 80 seconds. In this case, the boost control unit 56 may start the boost operation 80 seconds before the start point of the current cycle period C0, or may start the boost operation from the start point of the cycle period C0.

FIG. 10 and FIG. 11 are flowcharts showing the control procedure of the boosting operation by the hand dryer 1 of the first embodiment. In step S11, the hand dryer 1 is turned on by connection to the commercial AC power source 23 shown in FIG. In step S12, the hand dryer 1 enters a standby state with the boost operation of the boost converter unit 30 turned off. In addition, after the power is turned on, the hand dryer 1 operates the blower 10 by turning on the pressure increasing operation at any time when the sensor 15 detects the hand. Step S12 and subsequent steps show the operation procedure in a standby state in which no hand is detected by the sensor 15.

In step S13, the boost control unit 56 shown in FIG. 5 determines whether or not the actual data is stored in the actual data storage unit 57. When the actual data is not stored in the actual data storage unit 57 (step S13: No), the microcontroller 26 acquires the actual data by executing an operation according to the procedure shown in FIG. 8 in step S14. The microcontroller 26 stores the acquired result data in the result data storage unit 57. When the result data is stored in the result data storage unit 57 (step S13: Yes), or when the result data is acquired in step S14, the hand drying apparatus 1 advances the procedure to step S15.

In step S15, the boost control unit 56 determines whether or not the current time has reached the start time of the cycle period C-1 of the performance data. If the current time has not reached the start time of the cycle period C-1 (step S15: No), the microcontroller 26 waits until the current time reaches the start time of the cycle period C-1. When the current time reaches the start time of the cycle period C-1 (step S15: Yes), the microcontroller 26 starts counting by the timer 55 in step S16. The time when the counting is started in step S16 is the start point of the current cycle period C0.

In step S <b> 17, the boost control unit 56 refers to the actual data stored in the actual data storage unit 57 and obtains detection data “1” that is data indicating that a hand has been detected. Data number “Xn” is set. “Xn” is a variable. In the first step S17 from the start of the count in step S16, the data number “Xn” is set to “X1” which is the first data number after the start point of the cycle period C-1. In step S <b> 17 to step S <b> 22 that are executed first, the boost control unit 56 executes processing by setting Xn = X <b> 1.

The boost control unit 56 reads the parameter α from the parameter storage unit 58. In step S18, the boost control unit 56 subtracts the parameter α from the unit time start point T-1 (Xn) for the data number “Xn” set in step S17, thereby starting the boost operation start time T0on (Xn). Ask for. That is, the boost control unit 56 calculates T0on (Xn) that satisfies the relationship of the following expression (1).
T0on (Xn) = T-1 (Xn) -α (1)

In step S19, the boost control unit 56 refers to the count value of the timer 55 and determines whether or not the current time Tnow has reached the start time T0on (Xn) calculated in step S18. That is, the boost control unit 56 determines whether or not the relationship of the following equation (2) is satisfied. The time Tnow is a variable that changes with the passage of time.
Tnow ≧ T0on (Xn) (2)

If the current time Tnow has not reached the start time T0on (Xn) (step S19: No), the microcontroller 26 waits until the current time Tnow reaches the start time TC0on (Xn). When the current time Tnow reaches the start time TC0on (Xn) (step S19: Yes), the boost control unit 56 turns on the boost operation of the boost converter unit 30 in step S20.

The boost control unit 56 reads the parameter β from the parameter storage unit 58. In step S21, the boost control unit 56 adds the parameter β to the start point T-1 (Xn) of the unit time for the data number “Xn” set in step S17, so that the boost operation end time T0off (Xn ) That is, the boost control unit 56 calculates T0off (Xn) that satisfies the relationship of the following expression (3).
T0off (Xn) = T-1 (Xn) + β (3)

In step S22, the boost control unit 56 refers to the count value of the timer 55 and determines whether or not the current time Tnow has reached the end time T0off (Xn). That is, the boost control unit 56 determines whether or not the relationship of the following equation (4) is satisfied.
Tnow ≧ T0off (Xn) (4)

When the current time Tnow reaches the end time T0off (Xn) (step S22: Yes), the boost control unit 56 turns off the boost operation of the boost converter unit 30 in step S23. In step S24, the boost control unit 56 determines whether or not the processing for controlling the boost operation has been completed for all the data numbers of the detection data “1” in the performance data.

When the processing for all the data numbers has not been completed (step S24: No), the boost control unit 56 refers to the actual data in step S25, and the data number when the detection data “1” is obtained. Update “Xn”. In the case of the first step S25 after the processing up to step S24 by setting Xn = X1, the boost control unit 56 updates the data number “Xn” from “X1” to “X2”. “X2” is the data number when the detection data “1” is obtained after the first data number “X1”. Thereafter, the boost control unit 56 executes the processing after step S18 by setting Xn = X2.

On the other hand, when the current time Tnow has not reached the end time T0off (Xn) (step S22: No), the step-up control unit 56 refers to the result data stored in the result data storage unit 57 in step S26. Then, the data number “Xn + 1” when the detection data “1” is obtained next to the data number “Xn” is set. “Xn + 1” is a variable. In the case of the first step S26 after the processing up to step S22 by setting Xn = X1, the boost control unit 56 sets “X2” to the data number “Xn + 1”. As in step S25 described above, “X2” is the data number when the detection data “1” is obtained after the first data number “X1”.

In the next step S27, the boost control unit 56 subtracts the parameter α from the start point T-1 (Xn + 1) of the unit time for the data number “Xn + 1” set in step S25, thereby starting the boost operation start time T0on ( Xn + 1). That is, the boost control unit 56 calculates T0on (Xn + 1) that satisfies the relationship of the following equation (5).
T0on (Xn + 1) = T-1 (Xn + 1) -α (5)

In step S28, the boost control unit 56 refers to the count value of the timer 55 and determines whether or not the current time Tnow has reached the start time T0on (Xn + 1) calculated in step S26. That is, the boost control unit 56 determines whether or not the relationship of the following formula (6) is satisfied.
Tnow ≧ T0on (Xn + 1) (6)

If the current time Tnow has not reached the start time T0on (Xn + 1) (step S28: No), the boost control unit 56 returns the procedure to step S22 for the data number “Xn”. On the other hand, when the current time Tnow has reached the start time T0on (Xn + 1) (step S28: Yes), in step S29, the boost control unit 56 updates the data number “Xn” while keeping the boost operation on. To do. In step S29, the data number “Xn” is set to the same data number as the data number “Xn + 1” set in step S26. When “X2” is set to the data number “Xn + 1” in step S26, the boost control unit 56 sets “X2” to the data number “Xn”. Thereafter, the boost control unit 56 executes the processing after step S21 by setting Xn = X2.

In step S24, when the processing for all the data numbers has been completed (step S24: Yes), the microcontroller 26 ends the control of the boosting operation based on the result data. In the case of the performance data shown in FIG. 9, the boost control unit 56 sets the data number “Xn” to “5”,... “119”, “121”, “122”.・ ・ Update it.

The microcontroller 26 turns on the boosting operation by the interruption process and operates the blower 10 when the hand is detected by the sensor 15 during the execution of the processes after step S12. If the timer 55 is counting, the microcontroller 26 continues counting during the interrupt processing. The microcontroller 26 may accumulate the result data based on the detection result of the hand by the sensor 15 for the current cycle period C0 in which the step-up operation during standby is controlled. The microcontroller 26 may store the actual data accumulated in the current cycle period C0 together with the past actual data, or may overwrite the past actual data. The microcontroller 26 may continue the process based on the performance data for the current cycle period C0 after the process according to the procedure shown in FIGS. The microcontroller 26 controls the boosting operation in the cycle period next to the cycle period C0.

The microcontroller 26 may continuously perform the control of the boosting operation with the cycle period of 24 hours and the accumulation of the result data. The microcontroller 26 may accumulate the performance data by always turning on the boosting operation in the first cycle period among the continuous cycle periods, and may control the boosting operation in the second and subsequent cycle periods.

According to the first embodiment, the hand drying device 1 controls the boosting operation of the boosting converter unit 30 based on the record data indicating the record of presence / absence of hand detection. The hand dryer 1 starts the pressure increasing operation at the start time set based on the time when the hand is detected in the past cycle period. When the use of the hand drying device 1 is expected, the hand drying device 1 can stand by in a state where air blowing can be started immediately. The hand dryer 1 can reduce standby power by not performing the boosting operation at other times. The hand dryer 1 controls the boosting operation based on the record data accumulated in the microcontroller 26. Since the hand dryer 1 does not need to set a time zone for performing the pressure increasing operation in the standby state, it can eliminate the need for complicated input operations for the setting conditions. The hand dryer 1 can have a simple configuration by eliminating the need for an input operation for a time zone and a means for displaying the input content.

As described above, the hand drying device 1 has an effect that the time required to start blowing can be shortened and standby power can be reduced.

Embodiment 2. FIG.
FIG. 12 is a diagram for explaining the control of the step-up operation by the hand dryer 1 according to the second embodiment of the present invention. The hand dryer 1 according to the second embodiment uses the start time parameter and the end time parameter determined based on the frequency of the detection data “1” indicating that the hand is detected by the sensor 15. The start time and end time of the boosting operation are set. The same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

“Low”, “Medium”, and “High” shown in FIG. 12 represent frequency classifications. The frequency F, which is the first frequency, represents the number of detection data “1” included in the first determination period. The first determination period is a period set by dividing from the first cycle period, which is the cycle period of the performance data. In one example, the first determination period is 1 hour. The criterion for the frequency classification “low” is that the frequency F is 9 or less. The criterion of the frequency classification “medium” is that the frequency F is 10 or more and 20 or less. The criterion for the frequency classification “high” is that the frequency F is 21 or more. As the frequency increases to “low”, “medium”, and “high”, the parameter α, which is a start time parameter, is set to increase in value such as 60 seconds, 120 seconds, and 180 seconds. The value of the parameter β, which is an end parameter, is the same as the value of the parameter α. The parameter storage unit 58 shown in FIG. 5 stores the value of the parameter α and the value of the parameter β set for each frequency classification. Note that the length of the first determination period can be arbitrarily set. The number of frequency classifications is not limited to three, and may be two or four or more. The frequency classification criteria can be arbitrarily set. It is assumed that the values of the parameters α and β for each frequency classification can be arbitrarily set.

FIG. 13 is a diagram showing an example of the result data stored in the result data storage unit 57 shown in FIG. 5 and the parameters stored in the parameter storage unit 58. The frequency F shown in FIG. 13 is a parameter calculated in the process of calculation in the microcontroller 26 and is not stored in the storage unit 53.

The microcontroller 26 uses the parameter α determined based on the frequency F of the detection data “1” in the first determination period to obtain a start time that is a timing for starting the boost operation of the boost converter unit 30. In addition, the microcontroller 26 uses the parameter β determined based on the frequency F of the detection data “1” in the first determination period, and sets an end time that is a timing for ending the boost operation of the boost converter unit 30. Ask.

Here, the determination of the parameter α and the parameter β will be described with reference to FIG. Detection data from data numbers “1” to “360” is detection data indicating whether or not a hand is detected in the first determination period, which is one hour from the start point of the cycle period C-1. It is assumed that 21 detection data “1” indicating that a hand has been detected is included in the detection data from the data numbers “1” to “360”. The boost control unit 56 illustrated in FIG. 5 determines that the frequency classification of the detection data “1” in the first determination period is “high” based on the criterion illustrated in FIG. 12. The boosting control unit 56 determines the parameter α and the parameter β from the data numbers “1” to “360” as 180 seconds based on the determination of the frequency classification “high”. In the first determination period for other data numbers, the boost control unit 56 also sets the parameter α and the parameter α based on the frequency classification, as in the case of the first determination period from the data numbers “1” to “360”. The parameter β is determined.

According to the second embodiment, the hand dryer 1 uses the parameter α and the parameter β determined based on the frequency with which the hand is detected, so that the hand dryer 1 is used based on the frequency with which the hand dryer 1 is used. The start time and end time of the boost operation can be set. The hand dryer 1 can lengthen the period of the boosting operation as it is expected to be used at a high frequency, and can shorten the period of the boosting operation when the frequency of use is expected to be low. Thereby, the hand dryer 1 can control a pressure | voltage rise operation so that it may adapt to the condition of use frequency.

Embodiment 3 FIG.
FIG. 14 is a diagram for explaining the control of the step-up operation by the hand dryer 1 according to the third embodiment of the present invention. The hand drying apparatus 1 according to the third embodiment is based on the second frequency, which is the frequency of hand detection in the second cycle period in which the pressure increasing operation during standby of hand detection is controlled. Change parameters and exit parameters. The same parts as those in the first and second embodiments are denoted by the same reference numerals, and redundant description is omitted.

The classification of “low”, “medium”, and “high” shown in FIG. 14 is the same as the classification shown in FIG. 12 of the second embodiment. The second determination period is a period of 20 minutes set by division from the current cycle period which is the second cycle period. The second determination period is 20 minutes from the time corresponding to the start point of the first determination period in the second embodiment. The frequency Fn, which is the second frequency, represents the number of times that a hand has been detected in the second determination period.

The boost control unit 56 shown in FIG. 5 changes the parameters α and β determined from the performance data based on the frequency Fn. In the third embodiment, the values of the parameters α and β determined from the actual data may be referred to as reference values. In one example, the reference values are the values of the parameters α and β shown in FIG. Note that the length of the second determination period can be arbitrarily set.

When the frequency classification is “low” and the frequency Fn is 3 or less, the parameter α, which is a start parameter, is set to 60 seconds, which is the same value as the reference value. When the frequency classification is “low” and the frequency Fn is 4 or more, the parameter α is set to 120 seconds, which is a value larger than the reference value. When the frequency Fn is 4 or more in the frequency classification “low”, the boost control unit 56 changes the parameter α from the reference value of 60 seconds to 120 seconds. As a result, the microcontroller 26 has the frequency Fn of 4 or more when the frequency classification based on the performance data is “low”. It is determined that the use frequency of the drying apparatus 1 has increased, and adjustment is performed to lengthen the period of the boosting operation.

When the frequency classification is “medium” and the frequency Fn is 4 or more and 7 or less, the parameter α is set to 120 seconds, which is the same value as the reference value. When the frequency classification is “medium” and the frequency Fn is 3 or less, the parameter α is set to 60 seconds, which is a value smaller than the reference value. When the frequency Fn is 3 or less in the frequency classification “medium”, the boost control unit 56 changes the parameter α from the reference value of 120 seconds to 60 seconds. As a result, the microcontroller 26 performs manual drying in the current cycle compared to the cycle in the performance data because the frequency Fn is 3 or less when the frequency classification based on the performance data is “medium”. It is determined that the frequency of use of the device 1 has become low, and adjustment that shortens the period of the boosting operation is made possible.

As shown in FIG. 14, for each classification of “low”, “medium”, and “high”, the value of the parameter α for each range of the frequency Fn is set. The value of the parameter β, which is an end parameter, is the same as the value of the parameter α. The parameter storage unit 58 shown in FIG. 5 stores a preset value of the parameter α and a value of the parameter β. In addition, the range of the frequency Fn used as a reference | standard for changing the value of parameter (alpha) and (beta) from a reference value shall be set arbitrarily. In addition, the values of the parameters α and β for each range of the frequency Fn can be arbitrarily set.

FIG. 15 is a diagram showing an example of the result data stored in the result data storage unit 57 shown in FIG. 5 and the determined parameters. The frequency Fn shown in FIG. 15 is a parameter calculated in the process of calculation in the microcontroller 26 and is not stored in the storage unit 53.

Here, the change between the parameter α and the parameter β will be described with reference to FIG. The reference values of the parameters α and β in one hour from the data numbers “1” to “360” are 180 seconds in the case of the frequency classification “high” shown in FIG. The boosting control unit 56 is the second determination period of 20 minutes corresponding to the data numbers “1” to “120” among the 1 hours corresponding to the data numbers “1” to “360” in the current cycle period. , Parameters α and β are 180 seconds.

In addition, the boost control unit 56 monitors the frequency Fn, which is the number of unit times in which the hand is detected in such 20 minutes. When the frequency Fn is “6”, the parameters α and β are 120 seconds for the classification “high” and “Fn ≦ 7” shown in FIG. The step-up control unit 56 changes the parameters α and β from 180 seconds to 120 seconds. The step-up control unit 56 sets the parameters α and β to 120 seconds in 40 minutes corresponding to the data numbers “121” to “360”. In this way, the microcontroller 26 determines that the current frequency of use of the hand dryer 1 has changed from the frequency Fn compared to the cycle period of the performance data, and changes the period of the boosting operation. The boost control unit 56 changes the parameters α and β based on the frequency Fn in the same manner as the data numbers “1” to “360” for the data numbers “361” and thereafter.

According to the third embodiment, the hand dryer 1 can change the parameters α and β obtained from the result data based on the frequency of hand detection in the current cycle period. Thereby, the hand dryer 1 can control a pressure | voltage rise operation so that it may adapt to the change of a use condition.

In the third embodiment, the hand dryer 1 omits the determination of the frequency classification “low”, “medium”, and “high” from the past performance data, and detects the hand in the current cycle period. The parameters α and β may be determined based on the frequency.

Embodiment 4 FIG.
FIG. 16 is a diagram for explaining the control of the step-up operation by the hand dryer 1 according to the fourth embodiment of the present invention. The hand drying device 1 according to the fourth embodiment uses the result of the hand detection in the current cycle period, which is the second cycle period for controlling the pressure increasing operation at the time of hand detection standby, as the result data. Based on this, the boosting operation is stopped. The same parts as those in the first embodiment are denoted by the same reference numerals, and redundant description is omitted.

FIG. 16 shows a time chart of the actual data in the past cycle period C-1, and a time chart of the hand detection result and the state of the boosting operation in the current cycle period C0. In FIG. 16, the time axis representing the time T-1 of the cycle period C-1 and the time axis representing the time T0 of the current cycle period C0 are shown by matching the same time with different dates.

The boost control unit 56 shown in FIG. 5 stops the boost operation based on the result data when no hand is detected in the first determination period in the current cycle period C0. In Embodiment 4, the first determination period is 1 hour. Note that the length of the first determination period can be arbitrarily set.

In the example shown in FIG. 16, in the first determination period H1 of the current cycle period C0, the boost control unit 56 is based on the past data in the past cycle period C-1 as in the case of the first embodiment. The boosting operation is controlled on and off. In the first determination period H1, when there is no unit time in which a hand is detected, the boost control unit 56 waits in the first determination period H2 next to the first determination period H1. The step-up operation in the state is always turned off. As described above, the boost control unit 56 determines that the frequency of use of the hand dryer 1 has significantly decreased compared to the past cycle period when there has been no hand detection in the first determination period. Thus, the boosting operation based on the actual data is stopped.

The boost control unit 56 always turns off the boost operation in the standby state in the cycle period C0 after the first determination period H2. The microcontroller 26 can reduce standby power in a situation where the frequency of use of the hand dryer 1 is significantly lower than that in the normal cycle period by always turning off the boosting operation in the standby state in the cycle period C0. Note that, after the first determination period H2, the boost control unit 56 resumes the control of the boost operation based on the actual data of the cycle period C-1 when a hand is detected in the cycle period C0.

In addition, after the first determination period H2, when the cycle period C0 ends without any hand detection, the boost control unit 56 determines that in the cycle period C-1 in the cycle period C1 next to the cycle period C0. The control of the boosting operation based on the result data is resumed. In the cycle period C1, if there is a first determination period in which no hand is detected, the boost control unit 56 always turns off the boost operation in the standby state even in the cycle period C1.

In one example, when the current cycle period C0 falls on a closed day of the facility where the hand dryer 1 is installed, the frequency of use of the hand dryer 1 is equal to the frequency of use in the cycle period C-1 up to the previous day. It can be significantly lower than that. The boosting control unit 56 can reduce wasteful standby power on closed days by always turning off the boosting operation in the standby state in the cycle period C0.

The boost control unit 56 is not limited to the case where the number of unit times in which the hand is detected in the first determination period is not once, but when the number of unit times is equal to or less than a preset threshold value. The boosting operation based on the result data may be stopped. Also in this case, the microcontroller 26 can reduce standby power in a situation where the frequency of use of the hand dryer 1 is extremely low. In one example, the boosting control unit 56 can stop the boosting operation in the standby state when the hand dryer 1 is slightly used on a facility holiday. Further, after stopping the boosting operation in the standby state, the boosting control unit 56 may restart the boosting operation in the standby state when the number of unit times in which a hand is detected exceeds a threshold value. The threshold value may be set by an operation on an input unit provided in the hand dryer 1. Note that the input means is not shown. The hand dryer 1 according to the fourth embodiment may determine the timing for starting and ending the boosting operation, as in the second or third embodiment.

According to the fourth embodiment, the hand dryer 1 stops the pressure increasing operation based on the result data based on the hand detection result in the current cycle period. The hand dryer 1 can reduce standby power in a situation where the frequency of use of the hand dryer 1 is extremely low.

Embodiment 5 FIG.
The hand-drying apparatus 1 concerning Embodiment 5 of this invention accumulate | stores the performance data in several cycle periods. The same parts as those in the first to fourth embodiments are denoted by the same reference numerals, and redundant description is omitted. In the fifth embodiment, the result data storage unit 57 shown in FIG. 5 stores the result data for a plurality of cycle periods.

FIG. 17 is a flowchart for explaining the control of the boosting operation by the hand dryer 1 according to the fifth embodiment of the present invention. In the fifth embodiment, the microcontroller 26 shown in FIG. 5 performs the accumulation of the actual data of seven cycle periods C0, C1, C2,... C6 and the control of the boosting operation based on the accumulated actual data. To do.

In step S31, the microcontroller 26 accumulates the first result data that is the result data in the first cycle period C0 that is the first cycle period. The microcontroller 26 accumulates and stores the first accumulation data by the same procedure as that shown in FIG.

In step S32, the microcontroller 26 controls the boosting operation in the second cycle period C1 based on the first accumulated data stored in step S31. The microcontroller 26 controls the boosting operation according to a procedure similar to that shown in FIGS. The microcontroller 26 accumulates second performance data, which is performance data in the second cycle period C1, simultaneously with the control of the boosting operation. The microcontroller 26 accumulates and stores the second accumulated data by the same procedure as that shown in FIG.

In step S33, the microcontroller 26 controls the boosting operation in the third cycle period C2 based on the first accumulated data and the second accumulated data stored up to step S32. The boost control unit 56 shown in FIG. 5 may calculate an average value of the frequency F shown in FIG. 13 for each first determination period from the first accumulation data and the second accumulation data. The boost control unit 56 determines a start parameter and an end parameter based on the average value of the frequency F. The boost control unit 56 determines the start time parameter and the end time parameter by the same method as in the second embodiment. The boost control unit 56 sets the start time and end time of the boost operation in the third cycle period C2 using the determined start time parameter and end time parameter.

In step S33, the microcontroller 26 accumulates third performance data that is performance data in the third cycle period C2 simultaneously with the control of the boosting operation. The microcontroller 26 accumulates and stores the third accumulation data by the same procedure as that shown in FIG.

In step S34, the microcontroller 26 controls the boosting operation from the fourth cycle period to the seventh cycle periods C3, C4, C5, and C6 in the same manner as the third cycle period C2. Further, the microcontroller 26 performs the same operation as the third cycle period C2 to the fourth actual data from the fourth cycle period to the seventh cycle periods C3, C4, C5, C6 to the seventh actual period data. Accumulate actual data. Thereby, the microcontroller 26 finishes accumulating the actual data of the seven cycle periods C0, C1, C2,... C6 and the control of the boosting operation based on the accumulated actual data.

According to the procedure shown in FIG. 17, in the control of the boosting operation in the seventh cycle period C6, the microcontroller 26 performs the boosting operation based on the average value of the frequency F calculated from the first to sixth performance data. Set the start time and end time. The microcontroller 26 can grasp the tendency of the frequency of use of the hand dryer 1 with high accuracy by using the result data accumulated in the past plural cycle periods. The hand-drying device 1 can reduce the useless boosting operation by enabling the boosting operation to be controlled based on the grasped usage frequency tendency. Thereby, the hand dryer 1 can effectively reduce standby power.

Similarly to the fourth embodiment, the microcontroller 26 may stop the boosting operation based on the performance data when the hand detection in the first determination period is extremely low. The microcontroller 26 may exclude the performance data of the cycle period in which the boosting operation is stopped when calculating the average value of the frequency F. In one example, the microcontroller 26 can calculate the average value of the frequency F by excluding the actual data on closed days. Thereby, the microcontroller 26 can grasp the tendency of the usage frequency of the hand dryer 1 with higher accuracy.

The microcontroller 26 is not limited to executing the accumulation of the performance data in the seven cycle periods and the control of the boosting operation based on the accumulated performance data. The microcontroller 26 may perform performance data accumulation and boost operation control for less than seven or more than seven cycle periods.

In one example, the microcontroller 26 may execute the accumulation of the actual data for each day in one month and the control of the boosting operation based on the accumulated actual data. In this case, the microcontroller 26 may control the boosting operation by calculating an average value of the frequency F for each day of the week. The microcontroller 26 can calculate the average value for each day of the week by using the performance data every seven cycle periods. Further, the microcontroller 26 may calculate the average value of the frequency F based on all the actual data other than the actual data on the closed days.

Furthermore, the microcontroller 26 may execute accumulation of the actual data for each day in one year and control of the boosting operation based on the accumulated actual data. Also in this case, the microcontroller 26 may calculate the average value of the frequency F for each day of the week and control the boosting operation. The microcontroller 26 may control the boosting operation by calculating an average value of the frequency F every month or every season. The microcontroller 26 can control the boosting operation in response to a change in the usage frequency during the year. In one example, the microcontroller 26 can control the step-up operation by grasping a closed period set in the year. The hand dryer 1 according to the fifth embodiment may determine the timing for starting and ending the boosting operation, as in the second or third embodiment.

According to the fifth embodiment, the hand dryer 1 accumulates performance data for a plurality of cycle periods, and controls the boosting operation based on the accumulated performance data. Thereby, the hand dryer 1 can grasp | ascertain the tendency of usage frequency with high precision, can control pressure | voltage rise operation | movement, and can reduce standby electric power effectively.

Embodiment 6 FIG.
In the hand dryer 1 according to the sixth embodiment of the present invention, instead of a cycle period that is a preset time, a period from when the power to the hand dryer 1 is turned on to when the power is turned off is defined as a cycle period. To do. In the sixth embodiment, the cycle period in which the result data is accumulated and the cycle period in which the boosting operation is controlled based on the result data are the period from when the power to the hand dryer 1 is turned on to when the power is turned off. is there. The hand dryer 1 according to the sixth embodiment enables accumulation of performance data and control of the boosting operation as in the first to fifth embodiments except that the method for setting the cycle period is different. In the sixth embodiment, the cycle period is the time from on to off of the commercial AC power supply 23 shown in FIG.

The hand dryer 1 may be turned on at the same time every day or at the same time period, and may be turned off at the same time every day or at the same time period. In one example, the power is turned on at 8 am and the power is turned off at 9 pm. In this case, if the cycle period is set to 24 hours in advance, the result data for the cycle period is not accumulated. When it is determined in step S13 in FIG. 10 that the actual result data is not always stored, the microcontroller 26 cannot execute the processing after step S14.

The manual drying apparatus 1 can store the actual data for the cycle period and control the boosting operation based on the stored actual data by setting the time from when the power is turned on to when the power is turned off as the cycle period. It becomes. Assuming that the power supply is not exceptionally cut off, the microcontroller 26 accumulates the subsequent detection data when the actual data is accumulated from when the power is turned on until a preset period has elapsed. It is good not to do. Further, when the power is not cut off even when the past performance data is not stored, the microcontroller 26 may set the boosting operation in the standby state to always on or always off.

The hand dryer 1 according to the sixth embodiment may determine the timing for starting and ending the boosting operation as in the second or third embodiment. Moreover, the hand dryer 1 concerning Embodiment 6 may stop the pressure | voltage rise operation based on performance data based on the detection result of the hand in the present cycle period similarly to Embodiment 4. FIG. Moreover, the hand dryer 1 concerning Embodiment 6 may store the performance data about several cycle periods similarly to Embodiment 5. FIG.

According to the sixth embodiment, the hand-drying device 1 performs accumulation of performance data and control of the boosting operation, with the time period from when the power is turned on to when the power is turned off as a cycle period. As with the first to fifth embodiments, the hand drying device 1 can shorten the time required to start blowing and can reduce standby power.

Embodiment 7 FIG.
FIG. 18 is a diagram illustrating a configuration of the control unit 20 provided in the hand dryer 1 according to the seventh embodiment of the present invention. The same parts as those in the first to sixth embodiments are denoted by the same reference numerals, and redundant description is omitted. The hand dryer 1 according to the seventh embodiment changes the period of the pressure increasing operation based on the air temperature.

The hand dryer 1 includes a thermistor 60 that is a temperature measuring unit. The thermistor 60 measures the temperature. The microcontroller 26 acquires the temperature measurement result from the thermistor 60. The thermistor 60 is attached inside or outside the housing 3 of the hand dryer 1 shown in FIG. The thermistor 60 may be mounted inside the control unit 20. The temperature measurement unit only needs to be able to measure the temperature, and may be other than the thermistor 60. The temperature measurement unit is not limited to the one attached to the hand dryer 1, and may be installed at a position away from the hand dryer 1. The temperature measurement unit may be a thermometer that measures the temperature in the room where the hand dryer 1 is installed or the temperature in the user's room. The hand dryer 1 may include a communication unit that receives temperature information from a temperature measurement unit at a remote location. In FIG. 18, the communication means is not shown. The microcontroller 26 corrects the length of the period during which the boost converter unit 30 is operated based on the acquired temperature data.

FIG. 19 is a diagram showing an example of the result data stored in the result data storage unit 57 shown in FIG. In the seventh embodiment, the actual data includes temperature data for each unit time measured by the thermistor 60. The storage processing unit 54 shown in FIG. 5 stores the temperature data acquired from the thermistor 60 within the unit time in the result data storage unit 57 together with the detection data. In one example, the storage processing unit 54 stores temperature data together with the detection data in step S3 shown in FIG.

The “temperature difference” shown in FIG. 19 represents the difference between the temperature measured in the unit time of the current cycle period and the temperature data included in the actual data. The “β correction value” is a correction value calculated based on the temperature difference, and represents the correction value of the parameter β that is the end time parameter. Note that “temperature difference” and “β correction value” are parameters calculated in the process of calculation in the microcontroller 26, and are not stored in the storage unit 53. The units of “temperature” and “temperature difference” shown in FIG. 19 are Celsius degrees (° C.). The unit of “β correction value” is second (s).

When controlling the step-up operation, the step-up control unit 56 of the microcontroller 26 reads the temperature data at the data number when the detection data “1” is obtained from the result data storage unit 57. The step-up control unit 56 subtracts the read temperature data from the current temperature measurement value to calculate the temperature difference.

In one example, when the temperature difference is a positive value, the β correction value per 1 ° C. of the temperature difference is minus 10 seconds, and when the temperature difference is a negative value, the β correction value per 1 ° C. of the temperature difference. Is set to plus 10 seconds. Based on this setting, the boost control unit 56 calculates a β correction value from the temperature difference. The boost control unit 56 obtains the end time of the boost operation based on the parameter β corrected with the calculated β correction value. Note that the parameter β before correction by the β correction value is a constant value β regardless of the hand detection frequency, and the parameter β of the second embodiment determined from the frequency F. Any of the parameters β of the third embodiment changed based on the frequency Fn may be used. The method for calculating the β correction value from the temperature difference is not limited to the method according to the seventh embodiment, and may be changed as appropriate.

In the example shown in FIG. 19, for the data number “5” of the detection data “1”, the temperature difference obtained by subtracting 17 ° C., which is the temperature in the actual data, from the current temperature is calculated as minus 3 ° C. The boost control unit 56 calculates plus 30 seconds, which is a β correction value, based on the temperature difference of minus 3 ° C. In one example, the boost control unit 56 sets the end time of the boost operation for the data number “5” based on the result obtained by adding the plus 30 seconds that is the β correction value to 120 seconds that is the parameter β shown in FIG. calculate. The end time T0off (5) for the data number “5” in FIG. 9 is corrected from 40 seconds + β of 160 seconds to 190 seconds by adding 30 seconds.

Further, in the example shown in FIG. 19, for the data number “359” of the detection data “1”, the temperature difference obtained by subtracting 21 ° C. that is the temperature in the actual data from the current temperature is calculated as plus 2 ° C. The boost control unit 56 calculates minus 20 seconds, which is a β correction value, based on the temperature difference of plus 2 ° C. In one example, the boost control unit 56 sets the end time of the boost operation for the data number “359” based on 160 seconds that is the result of subtracting 20 seconds from 180 seconds that is the parameter β shown in FIG. calculate.

The hand-drying device 1 can be controlled such that the pressure increase operation end time is delayed as the temperature difference increases toward the minus side, and the period of the pressure increase operation in the standby state becomes longer as the temperature decreases. In one example, in the case of the hand dryer 1 installed in the toilet room, the hand dryer 1 controls the pressure increasing operation so as to meet the general tendency that the use frequency of the toilet increases as the temperature decreases. can do. As described above, the hand dryer 1 can control the pressure increasing operation adapted to the change in the temperature when the use frequency can change due to the change in the temperature.

Note that the boost control unit 56 may correct the parameter α, which is the start parameter, with a correction value calculated based on the temperature difference. The hand drying device 1 can change the period of the boosting operation by correcting at least one of the parameter α and the parameter β. In addition, the hand dryer 1 is controlled so that the frequency of use increases as the temperature difference decreases toward the positive side when the frequency of use decreases as the temperature decreases or the frequency of use increases as the temperature increases. May be performed.

The hand dryer 1 according to the seventh embodiment may determine the timing for starting and ending the boosting operation, as in the second or third embodiment. Moreover, the hand dryer 1 concerning Embodiment 7 may stop the pressure | voltage rise operation based on performance data based on the detection result of the hand in the present cycle period similarly to Embodiment 4. FIG. Moreover, the hand dryer 1 concerning Embodiment 7 may store the performance data about several cycle periods similarly to Embodiment 5. FIG. Further, in the hand dryer 1 according to the seventh embodiment, similarly to the sixth embodiment, a period from when the power to the hand dryer 1 is turned on to when the power is turned off may be a cycle period.

According to the seventh embodiment, the hand-drying device 1 can control the boosting operation adapted to the change of the temperature by changing the period of the boosting operation based on the temperature.

Embodiment 8 FIG.
FIG. 20 is a diagram illustrating a configuration of the control unit 20 provided in the hand dryer 1 according to the eighth embodiment of the present invention. The same parts as those in the first to seventh embodiments are denoted by the same reference numerals, and redundant description is omitted. The hand dryer 1 according to the eighth embodiment includes a clock 70 that provides time information to the microcontroller 26.

The microcontroller 26 acquires time information from the clock 70. The hand dryer 1 executes the control of the boosting operation in the first to seventh embodiments using the current time. The clock 70 may present a date and day of the week together with the time. The microcontroller 26 acquires date and day information from the clock 70 together with time information. The hand dryer 1 can control the boosting operation in the first to seventh embodiments using the current date and day of the week.

Even when the commercial AC power supply 23 is periodically turned off, the hand dryer 1 can always grasp the time without setting the time when the commercial AC power supply 23 is turned on. . The timepiece 70 may be provided in any of the hand drying apparatuses 1 according to the first to seventh embodiments. According to the eighth embodiment, the hand drying device 1 includes the clock 70, and can control the boosting operation using the current time.

Embodiment 9 FIG.
FIG. 21 is a diagram for explaining the control of the step-up operation by the hand dryer 1 according to the ninth embodiment of the present invention. The hand dryer 1 according to the ninth embodiment determines the classification of the frequency of the detection data “1” for a third determination period different from the first determination period in the second embodiment. The same parts as those in the first to eighth embodiments are denoted by the same reference numerals, and redundant description is omitted.

The third determination period includes a period before the start point of the unit time for the data number (i) and a period after the start point. In one example, the third determination period is one hour including 30 minutes before the start point of the unit time and 30 minutes after the start point. In such an example, the length of the third determination period is the same as the length of the first determination period, but the setting of the start point and the end point in the third determination period is the setting of the first determination period. Different. The third determination period is a period set by shifting for each data number.

The frequency Fm that is the first frequency represents the number of detection data “1” included in one hour that is the third determination period. Note that the length of the third determination period can be arbitrarily set. “Low”, “medium”, and “high” shown in FIG. 21 represent frequency classifications. The frequency classification in the ninth embodiment is the same as that in the second embodiment shown in FIG.

FIG. 22 is a diagram showing an example of the result data stored in the result data storage unit 57 shown in FIG. 5 and an example of the frequency Fm. The frequency Fm shown in FIG. 22 is a parameter calculated during the calculation process in the microcontroller 26 and is not stored in the storage unit 53.

Here, the determination of the parameter α and the parameter β will be described with reference to FIG. The start point of the third determination period for the unit time of the data number “181” is the time 30 minutes before the start point of the unit time of the data number “181”, and the start point of the unit time of the data number “1” It's time. The end point of the third determination period for the unit time of the data number “181” is the time 30 minutes after the start point of the unit time of the data number “181”, and the end time of the unit time of the data number “360”. This is the end point time. The frequency Fm is the number of detection data “1” in one hour from the start point to the end point of the third determination period. According to the example of FIG. 22, the frequency Fm for the unit time of the data number “181” is 21 times. The boost control unit 56 determines that the frequency classification is “high” based on the reference illustrated in FIG. 21. The boosting control unit 56 determines the parameter α and the parameter β of the data number “181” as 180 seconds based on the determination of the frequency classification “high”.

The third determination period for data number “182” is one unit time lower than the third determination period for data number “181”, that is, 10 seconds. The start point of the third determination period for the data number “360” is the time of the start point of the unit time of the data number “181”. The end point of the third determination period for the data number “360” is the end time of the unit time of the data number “540”. According to the example of FIG. 22, the frequency Fm for the unit time of the data number “360” is 7 times. The boost control unit 56 determines that the frequency classification is “low” based on the reference illustrated in FIG. 21. Based on the determination of the frequency classification “low”, the boost control unit 56 determines the parameter α and the parameter β of the data number “360” as 60 seconds.

As described above, the boost control unit 56 determines the frequency classification by obtaining the frequency Fm while shifting the third determination period for each data number. By shifting the third determination period, the boost control unit 56 can reduce the deviation of the determination result that may be caused by the uneven use frequency within a certain period. Thereby, the microcontroller 26 can determine the usage frequency of the hand dryer 1 with high accuracy.

Of the third determination period, the length of the period before the start point of the unit time for the data number (i) may be different from the length of the period after the start point. In one example, the length of the unit time The third determination period may be 40 minutes before the start point and 20 minutes after the start point. Further, the third determination period may not include a period before the start point of the unit time for the data number (i), or may not include a period after the start point. The third determination period may be one hour before the start point of the unit time or one hour after the start point.

As in the fourth embodiment, the hand drying device 1 according to the ninth embodiment may stop the boosting operation based on the result data based on the hand detection result in the current cycle period. Moreover, the hand dryer 1 concerning Embodiment 9 may store the performance data about several cycle periods similarly to Embodiment 5. FIG. Further, in the hand dryer 1 according to the ninth embodiment, similarly to the sixth embodiment, a period from when the power to the hand dryer 1 is turned on to when the power is turned off may be a cycle period. Moreover, the hand dryer 1 concerning Embodiment 9 may change the period of pressure | voltage rise operation based on temperature similarly to Embodiment 7. FIG. Further, the hand dryer 1 according to the ninth embodiment may include a clock 70 as in the eighth embodiment.

According to the ninth embodiment, the hand drying device 1 determines the parameter α and the parameter β based on the frequency with which the hand is detected in the third determination period. The hand dryer 1 can accurately determine the frequency of use of the hand dryer 1 and can control the boosting operation so as to suit the situation of the frequency of use.

Embodiment 10 FIG.
FIG. 23 is a diagram for explaining the control of the step-up operation by the hand dryer 1 according to the tenth embodiment of the present invention. The hand drying device 1 according to the tenth embodiment starts at the start based on the second frequency, which is the frequency of hand detection in the second cycle period that controls the pressure increasing operation during hand detection standby. Change parameters and exit parameters. In the tenth embodiment, the number of hand detections in a fourth determination period different from the second determination period in the third embodiment is set as the second frequency. The same parts as those in the first to ninth embodiments are denoted by the same reference numerals, and redundant description is omitted.

The fourth determination period is a period before the start point of the unit time in the current cycle period. In one example, the fourth determination period is 20 minutes before the start point of the unit time. In such an example, the length of the fourth determination period is the same as the length of the second determination period, but the setting of the start point and the end point in the fourth determination period is the setting of the second determination period. Different. The fourth determination period is a period set by shifting every unit time in the second cycle period. The frequency Fp, which is the second frequency, represents the number of times that a hand has been detected in the second determination period. “Low”, “medium”, and “high” shown in FIG. 23 represent frequency classifications. The frequency classification in the tenth embodiment is the same as that in the third embodiment shown in FIG.

Here, the change of the value of the parameter β as the end parameter will be mainly described, and the change of the value of the parameter α as the start parameter will be described later. The boost control unit 56 shown in FIG. 5 changes the parameter β determined from the performance data based on the frequency Fp. In the tenth embodiment, the values of the parameters α and β determined from the actual data may be referred to as reference values. In one example, the reference values are the values of the parameters α and β shown in FIG. The reference value may be the values of the parameters α and β shown in FIG. It is assumed that the length of the fourth determination period can be arbitrarily set.

FIG. 24 is a diagram illustrating an example of the performance data stored in the performance data storage unit 57 illustrated in FIG. 5 and an example of the frequency Fp. The frequency Fp shown in FIG. 24 is a parameter calculated in the process of calculation in the microcontroller 26 and is not stored in the storage unit 53.

Here, the change of the parameter β will be described with reference to FIG. The start point of the fourth determination period for the unit time of the data number “121” is a time 20 minutes before the start point of the unit time of the data number “121”, and the start point of the unit time of the data number “1”. It's time. Further, the end point of the fourth determination period for the unit time of the data number “121” is the end time of the unit time of the data number “120”, and is the start time of the unit time of the data number “121”. is there. The frequency Fp is the number of detection data “1” in 20 minutes from the start point to the end point of the fourth determination period. According to the example of FIG. 24, the frequency Fp for the unit time of the data number “121” is 7 times.

When the classification of the frequency determined from the actual data is “high” for the unit time of the data number “121”, the boost control unit 56 sets the parameter β of the data number “121” from the reference shown in FIG. Determine 120 seconds. In this example, the boost control unit 56 changes the value of the parameter β from the reference value of 180 seconds to 120 seconds. The step-up control unit 56 has a lower frequency of use of the hand dryer 1 at the present time than the actual data because the frequency Fp in the current cycle period is lower than the frequency that is the criterion of the classification “high”. Therefore, the adjustment for shortening the period of the boosting operation is performed.

The fourth determination period for data number “122” is one unit time lower than the fourth determination period for data number “121”, that is, 10 seconds. The start point of the fourth determination period for the data number “182” is the time of the start point of the unit time of the data number “122”. The end point of the fourth determination period for the data number “182” is the end time of the unit time of the data number “181” and the start time of the unit time of the data number “182”.

Thus, the boost control unit 56 shifts the fourth determination period for each data number and determines the frequency Fp. By shifting the fourth determination period, the boost control unit 56 can reduce the deviation of the determination result that may be caused by the uneven use frequency within a certain period. Thereby, the microcontroller 26 can determine the usage frequency of the hand dryer 1 with high accuracy.

In addition, for the unit time of data numbers “1” to “120” before the start point of the unit time, there is no data on presence / absence of hand detection in the 20 minutes before the start point of the unit time. The step-up control unit 56 may keep the parameter β as the reference value for the unit times of the data numbers “1” to “120”. Further, the boost control unit 56 may change the parameter β using the data for the last 20 minutes of the cycle period immediately before the current cycle period for the unit times of the data numbers “1” to “120”. good.

The boost control unit 56 changes the parameter α as well as the parameter β. The fourth determination period for the parameter α is shifted before the fourth determination period for the parameter β. The fourth determination period for the parameter α may be a period from a time 25 minutes before the start time of the unit time to a time 5 minutes before the start time of the unit time. The end point of the fourth determination period with respect to the parameter α may be set to a time before the time that is back by the time that is the maximum value of the parameter α from the start point of the unit time.

In the tenth embodiment, the hand dryer 1 omits the determination of the frequency classification “low”, “medium”, and “high” from the past performance data, and detects the hand in the current cycle period. The parameters α and β may be determined based on the frequency.

As in the fourth embodiment, the hand drying device 1 according to the tenth embodiment may stop the boosting operation based on the result data based on the hand detection result in the current cycle period. Moreover, the hand dryer 1 concerning Embodiment 10 may store the performance data about several cycle periods similarly to Embodiment 5. FIG. Further, in the hand dryer 1 according to the tenth embodiment, similarly to the sixth embodiment, a period from when the power to the hand dryer 1 is turned on to when the power is turned off may be a cycle period. Further, the hand dryer 1 according to the tenth embodiment may change the period of the pressure increasing operation based on the temperature, as in the seventh embodiment. Further, the hand dryer 1 according to the tenth embodiment may include a clock 70 as in the eighth embodiment.

According to the tenth embodiment, the hand drying device 1 can change the parameters α and β obtained from the result data based on the frequency of hand detection in the fourth determination period. The hand dryer 1 can determine the current use frequency of the hand dryer 1 with high accuracy, and can control the boosting operation so as to adapt to changes in the use situation.

The configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. It is also possible to omit or change the part.

1 hand dryer, 2 hand insertion section, 3 housing, 4 front section, 5 back section, 6 water receiving section, 7 drain tank, 10 blower, 11, 12 nozzle, 13, 14, 17 duct, 15 sensor, 16 Inlet, 18 air filter, 20 control unit, 21 DC brushless motor, 22 turbo fan, 23 commercial AC power supply, 24 power supply unit, 25 drive circuit, 26 microcontroller, 30 boost converter unit, 31 rectifier circuit, 32, 36 minutes Voltage resistance, 33 inductor, 34, 41 switching element, 35 fast recovery diode, 37 smoothing capacitor, 38 control power circuit, 39 resistance, 40 switching control IC, 42, 43 DC bus, 51 input section, 52 control calculation section, 53 Storage unit, 54 Storage processing unit, 55 Timer, 56 boost controller, 57 actual data storage unit, 58 parameter storage unit, 60 a thermistor, 61 CPU, 62 ROM, 63 RAM, 64 EEPROM, 65 input I / F, 70 clock.

Claims (18)

1. A housing provided with a hand insertion portion capable of inserting a hand;
   An air blowing unit for sending out an air flow to be injected at the manual insertion unit;
   A hand detection unit for detecting a hand inserted into the hand insertion unit;
   A power supply unit including a booster circuit for boosting a DC voltage;
   A drive circuit that receives power supply from the power supply unit and drives the blower unit;
   And a control processing unit that controls the operation of the booster circuit based on performance data representing the presence / absence of hand detection by the hand detection unit.
2. The control processing unit is based on the actual data in the first cycle period, and waits for detection by the hand detection unit in the second cycle period after the first cycle period. The hand dryer according to claim 1, wherein the operation of the booster circuit is controlled.
3. The said performance data contains the detection data which shows the presence or absence of the detection of the hand for every unit time, and the data number which is a number showing the order of the said unit time in the time series of the said performance data. Or the hand-drying apparatus of 2.
4. The hand-drying according to claim 3, wherein the control processing unit determines the timing for starting the operation of the booster circuit based on the data number of detection data indicating that a hand has been detected. apparatus.
5. 5. The hand drying according to claim 4, wherein the control processing unit determines a timing for ending the operation of the booster circuit based on the data number of detection data indicating that a hand is detected. apparatus.
6. The control processing unit obtains a timing for starting the operation of the booster circuit using a parameter determined based on a first frequency that is a frequency of detection data indicating that a hand has been detected. The hand-drying apparatus according to claim 4 or 5, characterized in that:
7. The control processing unit obtains a timing for ending the operation of the booster circuit using a parameter determined based on a first frequency that is a frequency of detection data indicating that a hand has been detected. The hand dryer according to claim 5 or 6, characterized in that
8. The first frequency is the number of detection data indicating that a hand has been detected in a first determination period set by dividing the actual data from a first cycle period. The hand dryer according to claim 6 or 7.
9. The control processing unit changes the parameter based on a second frequency that is a frequency of hand detection in a second cycle period in which the operation of the booster circuit is controlled during standby for hand detection. The hand dryer according to any one of claims 6 to 8, characterized in that:
10. 10. The hand dryer according to claim 9, wherein the second frequency is the number of hand detections in a second determination period set by dividing from the second cycle period.
11. The first frequency indicates that a hand has been detected in a third determination period that is set by shifting for each data number that is a number representing the order of the unit time in the time series of the actual data. The hand dryer according to claim 6 or 7, wherein the number is the number of detected data.
12. 10. The hand drying according to claim 9, wherein the second frequency is the number of times of hand detection in a fourth determination period set by shifting every unit time in the second cycle period. apparatus.
13. The control processing unit controls the operation of the booster circuit based on the result data based on a hand detection result in a second cycle period in which the operation of the booster circuit is controlled during standby for hand detection. The hand dryer according to claim 1, wherein the hand dryer is stopped.
14. The hand dryer according to any one of claims 1 to 13, wherein the control processing unit includes a result data storage unit that stores the result data.
15. 15. The hand dryer according to claim 14, wherein the result data storage unit stores the result data for a plurality of cycle periods.
16. The cycle period in which the actual data is accumulated and the cycle period in which the operation of the booster circuit is controlled based on the actual data are the period from when the power to the hand dryer is turned on to when the power is turned off. The hand drying apparatus according to claim 1, wherein the hand drying apparatus is provided.
17. The hand dryer according to any one of claims 1 to 16, wherein the control processing unit corrects a length of a period during which the booster circuit is operated based on an air temperature.
18. A clock providing time information to the control processing unit;
    The hand-drying apparatus according to claim 1, wherein the control processing unit controls operation of the booster circuit using time information.

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