JPWO2018189788A1 - Hand dryer - Google Patents

Abstract

The hand dryer includes a hand insertion portion formed in a concave shape in the main body housing, a blower portion that is provided in the main body housing and generates an air flow, and an air flow from the blower portion that is provided on the wall surface of the hand insertion portion. And a heater for heating the air supplied to the blower. In addition, the hand drying device detects the hand inserted into the hand insertion unit, and controls to drive the heater and control the heater based on information detected by the hand detection unit. And wipes off moisture adhering to the hand inserted into the hand insertion portion by an air flow ejected from the nozzle. The control unit controls the heater based on past operation data that is data relating to past operation of the hand dryer.

Description

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

  In order to maintain the hand in a hygienic state, it is necessary to hygienically perform a drying treatment after washing as well as a hand washing treatment. For this purpose, instead of wiping the wet hand after washing with a towel or handkerchief, a hand dryer that sprays high-speed airflow on the hand and blows off water adhering to the hand to dry the hand is used. ing.

  In this type of hand dryer, when a hand is inserted into the hand insertion section, the hand detection sensor detects the insertion of the hand, and the high-pressure airflow generator operates. When the high-pressure airflow generator operates, a high-speed airflow is ejected from the nozzle formed in the manual insertion portion and sprayed on the hand in the manual insertion portion. When the hand detection sensor detects that the hand has been removed from the hand insertion portion, the high-pressure airflow generator is stopped, and the ejection of the high-speed airflow from the nozzle is stopped.

  Further, Patent Document 1 discloses a human detection unit that detects that there is a person in the vicinity of the hand dryer, a blower unit that sends air to a nozzle that blows air into the drying chamber, and an air blown from the blower unit. It has a heat storage part that stores the heat to heat, and when it is determined by the human detection means that there is a person in the vicinity, it stores heat in the heat storage part, thereby suppressing the heating amount due to the operation of the unnecessary heating means and storing the heat A hand-drying device that reduces heat loss while suppressing heat dissipation from the unit is disclosed.

Japanese Patent No. 5625236

  However, in the method of heating air by heat storage, it is necessary to keep the temperature of the heat storage unit constant, and since energization is always performed even when the hand dryer is not used, wasteful energy is consumed. There was a problem.

  On the other hand, if heating is performed after a person is detected, the air is blown before storing a sufficient amount of heat in the heat storage section, so the hot air temperature becomes lower than the set value and the user feels uncomfortable or the drying time increases. There was a problem of doing.

  In addition, when a person is not detected, there is a problem in that it is necessary to always store heat in the heat storage unit and unnecessary power is consumed because the user cannot determine when to use the hand dryer.

  This invention is made | formed in view of the above, Comprising: It aims at obtaining the hand-drying apparatus which can improve energy saving property while drying comfortably.

  In order to solve the above-described problems and achieve the object, a hand drying device according to the present invention includes a hand insertion portion formed in a concave shape in a main body casing, and an air flow that is provided in the main body casing and generates an air flow. And a nozzle that is provided on the wall surface of the manual insertion portion and injects an air flow from the blower portion to the manual insertion portion, and a heater that heats the air supplied to the blower portion. In addition, the hand drying device detects the hand inserted into the hand insertion unit, and controls to drive the heater and control the heater based on information detected by the hand detection unit. And wiping away moisture adhering to the hand inserted into the hand insertion portion by an air flow ejected from the nozzle. The control unit controls the heater based on past operation data that is data relating to past operation of the hand dryer.

  The hand dryer according to the present invention produces an effect that a hand dryer capable of comfortably drying and improving energy saving can be obtained.

Side view of the hand-drying apparatus concerning Embodiment 1 of this invention. Front view of the hand dryer according to the first embodiment of the present invention. The expanded sectional view of the regenerative heater of the hand dryer concerning Embodiment 1 of the present invention. The figure which shows an example of the hardware constitutions of the processing circuit concerning Embodiment 1 of this invention. Functional block diagram of the principal part in connection with control of the hand dryer concerning embodiment of this invention The figure which shows the relationship between the use frequency of the hand-drying apparatus in the last cycle, and the heater OFF time in the hand-drying apparatus concerning Embodiment 1 of this invention. The figure which shows the example of the time chart of ON / OFF of a heater in the hand-drying apparatus concerning Embodiment 1 of this invention. The flowchart which shows the procedure of control of the heating apparatus in the hand dryer concerning Embodiment 1 of this invention. In the method for controlling the heating device of the hand dryer in Embodiment 2 of the present invention, the frequency of use of the hand dryer in the previous cycle, the use of the actual hand dryer in the first 20 minutes of the current section of the current cycle Figure showing the relationship between the number of times and the heater off time The flowchart which shows the procedure of control of the heating apparatus of the hand-drying apparatus in Embodiment 2 of this invention. The schematic diagram for demonstrating the example which correct | amends a heater off time with the frequency | count of actual use of the last area for 20 minutes The figure which shows the example of the time chart of heater ON and OFF in the control method of the heating apparatus of the hand dryer in Embodiment 3 of this invention The flowchart which shows the procedure of control of the heating apparatus of the hand-drying apparatus in Embodiment 3 of this invention. The flowchart which shows the procedure of control of the heating apparatus of the hand-drying apparatus in Embodiment 4 of this invention. Functional configuration diagram of main parts related to control of the hand dryer in Embodiment 6 of the present invention The figure which shows the example of the time chart of ON / OFF of the heater of the hand dryer in Embodiment 7 of this invention The figure which shows the other example of the time chart of ON / OFF of the heater of the hand-drying apparatus in Embodiment 7 of this invention.

  Below, the hand dryer concerning embodiment of this invention is demonstrated in detail based on drawing. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a side view of a hand-drying apparatus 100 according to the first embodiment of the present invention. FIG. 2 is a front view of the hand dryer 100 according to the first embodiment of the present invention. FIG. 3 is an enlarged cross-sectional view of the heating device 21 of the hand dryer 100 according to the first embodiment of the present invention. FIG. 4 is a diagram illustrating an example of a hardware configuration of the processing circuit according to the first embodiment of the present invention. FIG. 5 is a functional configuration diagram of main parts related to the control of the hand dryer 100 according to the first embodiment of the present invention.

  As shown in FIGS. 1 and 2, the hand dryer 100 includes a hand dryer main body 1 and a heating device 21.

  The hand dryer main body 1 is provided with an opening 2 c in the upper part of a main body housing 2 that forms an outline of the hand dryer main body 1. And the hand insertion part 3 which is the space enclosed by the concave part of the main body housing | casing 2 is provided in the upper part of the main body housing | casing 2 and the downward direction of the opening part 2c. The portion surrounding the hand insertion portion 3 of the main body housing 2 has a U-shaped cross section in a side view, and is slightly inclined from the front side to the back side as it goes from the top to the bottom of the hand insertion portion 3. Yes. Here, the front side in the hand dryer 100 is the left side in FIG. 1 and the near side in FIG.

  The manual insertion portion 3 is a space between the front protruding portion 2a that is a protruding portion on the front side, that is, the side close to the user, and the rear protruding portion 2b that is a protruding portion on the back side, that is, on the side far from the user. The front protrusion 2a and the rear protrusion 2b are connected to the water receiving portion 4 provided at the lowermost portion of the hand insertion portion 3. As described above, the hand insertion portion 3 has a bottomed cross-sectional U shape with an open top in a side view. And as shown in FIG. 1, the both side surfaces in the width direction of the manual insertion part 3 are open | released. Thereby, the hand insertion part 3 can insert / extract a user's hand freely from an upper direction or the left-right direction.

  A drain outlet (not shown) for draining the water of the water receiver 4 is provided in a part of the water receiver 4. An upper end portion of a drainage channel (not shown) extending in the vertical direction in the main body housing 2 is attached to the drainage port. A drain tank 5 disposed at the bottom of the main body is connected to the lower end of the drainage channel. The drain tank 5 is a container that stores water drained through the drainage channel, and is detachably attached to the bottom of the main body housing 2. The drainage channel is inclined so that water flows down, and the water adhering to the water receiving portion 4 flows through the drainage channel and is stored in the drain tank 5.

  As shown in FIG. 1, a blower unit 6 that generates a high-speed air flow is installed in the main body housing 2 below the manual insertion unit 3. The air blower 6 includes a motor 7 and a high-pressure airflow generator that includes a turbo fan 8 that is rotated by the motor 7. The air blower 6 is disposed with the intake side facing downward and the exhaust side facing upward. The motor 7 is a direct current (DC) brushless motor or a commutator motor.

  The air inlet of the air blower 6 opens above a duct (not shown), which is an internal air intake passage that is configured inside the main body housing 2 and continues in the vertical direction. The lower end of the duct opens downward at the bottom of the hand dryer main body 1 to form a main body inlet 9. Thereby, outside air can be taken into the duct via the main body inlet 9.

  The exhaust side of the air blower 6 is connected to the lower side of the front exhaust duct 10a and the rear exhaust duct 10b, which are connected in the vertical direction inside the main body housing 2 and branched and defined on the front side and the rear side. The high-pressure air that has been increased in pressure by the blower 6 is discharged to the front exhaust duct 10a and the rear exhaust duct 10b that are connected to the blower 6.

  A front-side nozzle 3a and a back-side nozzle 3b are provided as nozzles serving as blowout ports above the front exhaust duct 10a and the rear exhaust duct 10b. That is, in the hand insertion part 3, the hand insertion part 3 is located near the opening 2 c in the inner wall of the front protruding part 2 a that is the first inner wall of the hand insertion part 3 and is the front side wall surface of the hand insertion part 3. A front-side nozzle 3a, which is a first stationary nozzle for hand drying that ejects an airflow toward the front, is provided. Further, an air flow is ejected toward the hand insertion portion 3 near the opening 2c in the inner wall of the rear protrusion 2b which is the second inner wall of the hand insertion portion 3 and is the back side wall surface of the hand insertion portion 3. A back side nozzle 3b which is a second stationary nozzle for hand drying is provided. The front side nozzle 3a and the back side nozzle 3b are opposed to each other with the hand insertion portion 3 interposed therebetween. The front-side nozzle 3a and the back-side nozzle 3b are a plurality of small holes opened in a wave shape obliquely downward. The small holes are arranged in a row in the horizontal direction, that is, in the width direction of the hand dryer 100 in a front view. Moreover, the front side nozzle 3a and the back side nozzle 3b are not movable nozzles but stationary nozzles with fixed wind directions.

  The front-side nozzle 3a converts the high-pressure air generated by the blower unit 6 into a high-speed air stream, and injects the high-speed air stream from the outlet toward the manual insertion unit 3 as a working air stream. The back side nozzle 3b converts the high-pressure air generated by the air blowing unit 6 into a high-speed air flow, and injects the high-speed air flow from the outlet to the manual insertion unit 3 as a working air flow. The working airflow is ejected from the front side nozzle 3a and the back side nozzle 3b at an angle inclined downward from the horizontal direction in the facing direction of the hand insertion portion 3, and is applied to the wrist, palm, or back of the hand inserted by the user into the hand insertion portion 3. The attached water is blown off below the hand insertion portion 3.

  A hand detection unit 11 is built in the lower part of the back side of the main body housing 2. The manual insertion unit 3 detects insertion and extraction of a hand from the manual insertion unit 3 and sends detection information to a main body control unit 12 described later. That is, when the user moves the wet hand into the hand insertion portion 3 from the opening 2c toward the back side, the hand detection unit 11 detects the inserted hand and detects the inserted hand in the hand insertion portion 3. Detects that the user's hand has been inserted. When detecting that the user's hand has been inserted into the hand insertion unit 3, the hand detection unit 11 outputs a hand detection signal indicating that the user's hand has been detected to the main body control unit 12 as detection information. When the user pulls out the hand in the hand insertion unit 3 from the opening 2c, the hand detection unit 11 detects that the hand has been pulled out and detects that the user's hand has been extracted from the hand insertion unit 3. Detect. When the hand detection unit 11 detects that the user's hand has been extracted from the hand insertion unit 3, the hand detection unit 11 outputs a detection signal indicating that the user's hand has been extracted to the main body control unit 12, which will be described later, as detection information.

  The hand detection unit 11 uses, for example, an infrared distance measuring sensor, and detects the presence or absence of a hand based on the angle of light when light emitted from the light emitting element is received by the light receiving element. The hand detection unit 11 may be any sensor that can detect insertion and extraction of a hand from the hand insertion unit 3 and is not limited to an infrared distance measuring sensor.

  A main body control unit 12 that controls the operation of the air blowing unit 6 based on the hand detection result of the hand detection unit 11 is incorporated below the main body housing 2. The main body control unit 12 controls the operation of the blower unit 6 based on the hand detection signal information output from the hand detection unit 11, and the air flow from the front side nozzle 3 a and the back side nozzle 3 b into the hand insertion unit 3. Erupt. Moreover, the main body control unit 12 controls the operation of the heating device 21 described later based on past operation data of the hand dryer 100.

  The main body control unit 14 is realized, for example, as a processing circuit having the hardware configuration shown in FIG. When the main body control unit 14 is realized as a processing circuit having the hardware configuration illustrated in FIG. 4, the main body control unit 14 includes, for example, the processor 101 that is the arithmetic unit illustrated in FIG. 4 in the memory 102 that is the storage unit. This is realized by executing the stored program. A plurality of processors and a plurality of memories may cooperate to realize the above function. Further, a part of the functions of the main body control unit 14 may be mounted as an electronic circuit, and the other parts may be realized using the processor 101 and the memory 102.

  The heating device 21 is a heat storage type heating device having a structure in which a heat storage radiator and a heater 25 are incorporated in an open frame 22 on a front surface of a box shape on which the hand dryer main body 1 is placed and supported. . On the upper surface of the frame 22, there is provided an air supply port 23 that communicates with the main body intake port 9 that opens at the bottom of the hand dryer main body 1. Further, an intake port 24 for taking in air into the frame 22 is provided on the front surface of the frame 22.

  The heating device 21 supplies warm air from the air supply port 23 to the hand drying device main body 1 as shown in FIG. That is, the heating device 21 supplies the warmed air by radiating the stored heat amount to the air flowing from the intake port 24 and the stored warm air from the air supply port 23 to the hand dryer 1. Thereby, the blower 6 sucks warm air from the heating device 21, generates a high-pressure air stream of warm air, and blows out a high-speed air stream of warm air from the front side nozzle 3 a and the back side nozzle 3 b to the manual insertion unit 3. The hand dryer main body 1 and the heating device 21 may be configured integrally or separately.

  Inside the heating device 21, a heater control unit 26 that controls the operation of the heater 25 by controlling the energization of the heater 25 from the power supply unit 27 provided inside the heating device 21 in accordance with a command from the main body control unit 12. Is installed.

  The power supply unit 27 is a power supply board that is an inverter circuit board that converts AC power supplied from an external power supply (not shown) outside the hand dryer 100 into DC power. The power supply unit 27 is electrically connected to the heater 25 via a relay line. The power supply unit 27 supplies DC power generated from AC power to the heater 25 via a relay line. The power supply unit 27 may be directly supplied with AC power from an external power supply, or may be supplied with AC power from an external power supply via another power supply unit (not shown) provided inside the hand dryer 100. When an alternating current is supplied from another power supply unit to the power supply unit 27, the other power supply unit and the power supply unit 27 are electrically connected by a relay line (not shown).

  The other power supply unit is a power supply board that is an inverter circuit board that converts AC power supplied from an external power supply (not shown) outside the hand dryer 100 into DC power. The other power supply unit is electrically connected to the blower unit 6, the hand detection unit 11, and the main body control unit 12 through a relay line. The other power supply unit supplies the DC power generated from the AC power to the blower unit 6, the hand detection unit 11, and the main body control unit 12 through the relay line.

  In addition, the heater control unit 26 is provided with a room temperature detection circuit that detects the room temperature of the place where the hand dryer 100 is installed, that is, the ambient temperature of the hand dryer 100 and a heater temperature detection circuit that detects the temperature of the heater 25. ing. Based on the outputs of the room temperature detection circuit and the heater temperature detection circuit, the heater control unit 26 sets the temperature of the warm air supplied to the hand dryer main body 1 to a desired temperature regardless of the ambient temperature of the hand dryer 100. Thus, the energization to the heater 25 can be controlled. The main body control unit 12 may also function as the heater control unit 26.

  The heater control unit 26 is realized, for example, as a processing circuit having a hardware configuration illustrated in FIG. When the heater control unit 26 is realized as the processing circuit having the hardware configuration illustrated in FIG. 4, the heater control unit 26 executes, for example, the program stored in the memory 102 by the processor 101 illustrated in FIG. 4. Is realized. A plurality of processors and a plurality of memories may cooperate to realize the above function. Further, a part of the function of the heater control unit 26 may be mounted as an electronic circuit, and the other part may be realized using the processor 101 and the memory 102.

  Next, control of the heating device 21 in the hand dryer 100 according to the first embodiment will be described. FIG. 6 is a diagram showing the relationship between the frequency of use of the hand dryer 100 and the heater 25 off time in the previous cycle in the hand dryer 100 according to the first embodiment of the present invention. Hereinafter, the use frequency of the hand dryer 100 may be referred to as “use frequency”. The main body control unit 12 is based on past operation data that is data relating to past operation of the hand drying device 100 during operation of the hand drying device 100 after the power of the hand drying device 100 is turned on. The energization operation to the heater 25 is controlled.

  The past operation data during the operation of the hand dryer 100 includes information on the elapsed time after the power of the hand dryer 100 is turned on and information on the use frequency of the hand dryer 100. The information on the elapsed time after the power of the hand dryer 100 is turned on includes cycle information and section information.

  The cycle is a first management unit for managing an elapsed time after the hand dryer 100 is turned on after the hand dryer 100 is turned on. The main body control unit 12 manages the elapsed time after power-on of the hand dryer 100 in units of cycles. The cycle is 24 hours. The first 24 hours after the power of the hand dryer 100 is turned on is the first cycle, and the next 24 hours is the second cycle. The cycle is updated by increasing the number of cycles for identifying and managing the cycle by one every 24 hours.

  The main body control unit 12 updates the number of cycles every 24 hours after the power of the hand dryer 100 is turned on, and stores information on the number of cycles in the storage unit in the main body control unit 12. , Manage the cycle. Thereby, the main body control unit 12 can identify the current cycle and the past cycle. The main body control unit 12 may store information on the number of cycles in a storage unit other than the main body control unit 12. The main body control unit 12 ends the management of a series of cycles when the power of the hand dryer 100 is turned off. Then, when the power of the hand dryer 100 is turned on again, the main body control unit 12 initializes the number of cycles and newly manages the cycles. Note that the cycle information stored in the storage unit in the main body control unit 12 is deleted when the power is turned off.

  The section is a second management unit for managing the elapsed time after the power of the hand dryer 100 is turned on after the power of the hand dryer 100 is turned on, in which one cycle is divided every hour. It is. Therefore, one cycle is divided into 24 sections, and the first one hour of the cycle is the first section, and the next one time is the second section. The section is updated by increasing the number of sections that are identified and managed by one every hour.

  The information regarding the usage frequency of the hand dryer 100 is information on the frequency of use of the hand dryer 100 per section. Hereinafter, information on the use frequency may be referred to as “use frequency”. The main body control unit 12 stores the cycle information, the section information, and the number of times the hand dryer 100 is used in the section for the current cycle and the previous cycle of the current cycle. Store in the department. The number of times the hand dryer 100 is used is the number of times that the user detecting unit 11 detects that the user's hand has been inserted into the hand inserting unit 3, and the hand detecting unit 11 detects that the user's hand has been detected. This is the number of times that the main body control unit 12 has received a hand detection signal as information from the hand detection unit 11.

  The main body control unit 12 counts the number of times the hand detection signal is received from the hand detection unit 11 in each section, and stores it as the number of times the hand dryer 100 is used in the section. The number of times the hand dryer 100 is used in the stored section is used to determine the frequency of use of the hand dryer 100 in the next cycle, as will be described later.

  Information on the frequency of use of the hand dryer 100 is based on the number of uses of the hand dryer 100 per section, that is, the number of uses of the hand dryer 100 per hour, as shown in FIG. "High frequency" indicating high frequency, "Low frequency" indicating low usage frequency, "Medium frequency" indicating that the usage frequency is intermediate between "High frequency" and "Low frequency" It is classified into three stages.

  The main body control unit 12 is based on the number of times the hand dryer 100 is used in the section corresponding to the current section in the current cycle of the cycle immediately before the current cycle, and the predetermined number of times of use determination. The frequency of use of the hand dryer 100 in the current section in the current cycle is determined. The predetermined frequency of use frequency determination is the number of times of use of the hand dryer 100 per section, which is a reference for determining the frequency of use of the hand dryer 100 in the current section. It is remembered. The frequency of use frequency determination can be set to an arbitrary value according to the use state of the hand dryer 100. Hereinafter, the cycle immediately before the current cycle may be referred to as a “previous cycle”. Further, the usage frequency of the hand dryer 100 in the section may be referred to as “section usage frequency”.

  The usage frequency determination frequency is set for usage frequencies of “high frequency”, “medium frequency”, and “low frequency”. As an example, as shown in FIG. 6, the usage frequency determination count when it is determined as “low frequency” is 9 or less. The frequency of use frequency determination when it is determined as “medium frequency” is 10 times or more and 20 times or less. The frequency of use frequency determination when it is determined as “high frequency” is 21 times or more.

  As an example, when the current time is the fourth interval in the third cycle, the main body control unit 12 determines whether the current cycle in the current cycle is based on the frequency of use of the interval in the fourth interval in the second cycle, which is the previous cycle. The frequency of use of the section in the section is determined.

  The main body control unit 12 then sets the heater off time, that is, the time during which the heater 25 that has reached the target heater temperature Ta is turned off, that is, the heater 25 is turned on, based on the determined usage frequency of the current section. The time when 25 is turned off is determined. The target heater temperature Ta is a temperature at which the user can comfortably feel the temperature when the warm air supplied from the heating device 21 to the hand drying device main body 1 is jetted from the front side nozzle 3a and the back side nozzle 3b. This is a target temperature for raising the temperature of the heater 25 in order to make warm air. The target heater temperature Ta is determined in advance and stored in the main body control unit 12. The target heater temperature Ta can be set to an arbitrary temperature depending on the use environment of the hand dryer 100.

  Information on the heater off time corresponding to the frequency of use of the hand dryer 100 in the section is determined in advance and stored in the main body control unit 12. That is, information on the heater off time corresponding to the usage frequency of “high frequency”, “medium frequency”, and “low frequency” is determined in advance and stored in the main body control unit 12. In this manner, the main body control unit 12 holds information on the usage frequency of the section, the number of times of use frequency determination, and the heater off time of the section as shown in FIG. The main body control unit 12 determines the heater off time based on the determined use frequency of the section in the current section and the stored heater off time information. The main body control unit 12 controls the heater 25 that has reached the target heater temperature in accordance with the determined heater off time.

  As an example, the heater off time corresponding to “low frequency” is 900 seconds as shown in FIG. The heater off time corresponding to “medium frequency” is 600 seconds as shown in FIG. The heater off time corresponding to “high frequency” is 300 seconds as shown in FIG. That is, the heater-off time is set longer as the section usage frequency is lower, and is set shorter as the section usage frequency is higher. This is because if the frequency of use of the section is low, it is unlikely that the user will feel uncomfortable with the cold air even if the heater off time is lengthened. This is to perform control without causing discomfort due to the above.

  FIG. 7 is a diagram illustrating an example of a time chart for turning on and off the heater 25 in the hand dryer 100 according to the first embodiment of the present invention. In FIG. 7, the heater temperature of the heater 25 is shown on the vertical axis, and the count time after the power of the hand dryer 100 is turned on is shown on the horizontal axis. In FIG. 7, when the usage frequency of the section is “low frequency”, “medium frequency”, and “high frequency”, the main body control unit 12 controls the heater 25 according to the heater off time determined as described above. The time chart of the heater temperature of the heater 25 is typically shown.

  The main body control unit 12 performs control to turn on the heater 25 until the heater temperature of the heater 25 reaches a preset target heater temperature Ta after the power of the hand dryer 100 is turned on. Thereafter, the main body control unit 12 performs control to turn off the heater 25 by changing the heater off time in accordance with the heater off time determined based on the use frequency of the section in the previous cycle.

  When the usage frequency of the section is “high frequency”, the heater off time for turning off the heater 25 that has reached the target heater temperature Ta is shortened. For this reason, the heater temperature of the heater 25 decreases to a relatively high temperature compared to the case where the frequency of use of the section is “medium frequency” and “low frequency”, and then increases to the target heater temperature. It becomes a chart. In this case, by setting the heater off time when the frequency of use of the section is “high frequency” to be longer than the general heater off time, it is possible to suppress the power supplied to the heater 25 and to save energy. be able to.

  When the usage frequency of the section is “medium frequency”, the heater off time for turning off the heater 25 that has reached the target heater temperature Ta is longer than when the usage frequency of the section is “high frequency”. For this reason, the heater temperature of the heater 25 is a time chart in which the temperature decreases to a relatively low temperature compared to the case where the frequency of use of the section is “high frequency” and then increases to the target heater temperature Ta. Thereby, compared with the case where the use frequency of a section is "high frequency", the electric power which supplies with electricity to the heater 25 can be suppressed more, and energy saving can be achieved more.

  When the use frequency of the section is “low frequency”, the heater off time for turning off the heater 25 that has reached the target heater temperature Ta is longer than when the use frequency of the section is “medium frequency”. For this reason, the heater temperature of the heater 25 is a time chart in which the temperature decreases to a lower temperature than when the usage frequency of the section is “medium frequency” and then increases to the target heater temperature Ta. Thereby, compared with the case where the use frequency of a section is "medium frequency", the electric power which supplies with electricity to the heater 25 can be suppressed more, and energy saving can be achieved.

  As described above, the main body control unit 12 is the past operation data during the operation of the hand drying device 100 after the power of the hand drying device 100 is turned on. Based on the number of times of use and the number of times of use frequency determination, a heater off time for turning off the heater 25 that has reached the target heater temperature Ta is determined. Then, the main body control unit 12 controls the heater 25 according to the determined heater off time.

  FIG. 8 is a flowchart showing a control procedure of the heating device 21 in the hand dryer 100 according to the first embodiment of the present invention. Hereinafter, the control method of the heating device 21 in the hand dryer 100 will be described with reference to the flowchart of FIG.

  First, when the power of the hand dryer 100 is turned on in step S10, the main body control unit 12 determines the number of cycles t (n) and the number of sections t (k) stored in the main body control unit 12 in step S20. initialize.

  Next, in step S <b> 30, the main body control unit 12 updates the cycle number t (n) stored in the main body control unit 12 by increasing it by one.

  Next, in step S40, the main body control unit 12 determines whether or not 24 hours have elapsed since the cycle number t (n) was updated. If 24 hours have elapsed since the cycle number t (n) was updated, that is, if Yes in step S40, the main body control unit 12 returns to step S30. If 24 hours have not elapsed since the cycle number t (n) has been updated, that is, if No in step S40, the main body control unit 12 proceeds to step S50.

  In step S <b> 50, the main body control unit 12 determines the frequency of use of the section in the current section of the current cycle according to the above-described processing by the hand in the section of the previous cycle that is past operation data during operation of the hand dryer 100. This is determined based on the number of times the drying apparatus 100 is used. Then, the main body control unit 12 determines the heater off time in the current section of the current cycle based on the determined usage frequency of the section.

  Next, in step S60, the main body control unit 12 determines whether one hour has elapsed since the heater off time was determined in step S50. If 1 hour has elapsed since the heater off time was determined, that is, if Yes in step S60, the main body control unit 12 proceeds to step S110.

  In step S110, the main body control unit 12 updates the section number t (k) by incrementing by 1, and returns to step S40.

  On the other hand, if one hour has not elapsed since the heater off time was determined, that is, if No in step S60, the main body control unit 12 performs control to turn on the heater 25 in step S70. The main body control unit 12 transmits an on instruction signal for turning on the heater 25 to the heater control unit 26. The heater control unit 26 controls energization from the power supply unit 27 to the heater 25 in accordance with the received on instruction signal to turn on the heater 25. The heater control unit 26 transmits information on the temperature of the heater 25 detected by the heater temperature detection circuit to the main body control unit 12 at a predetermined interval.

  Next, in step S80, the main body control unit 12 determines whether the heater 25 has reached the target heater temperature Ta based on the temperature information of the heater 25 transmitted from the heater control unit 26. If the heater 25 has not reached the target heater temperature Ta, that is, if No in step S80, the main body control unit 12 repeats step S80.

  On the other hand, if the heater 25 has reached the target heater temperature Ta, that is, if Yes in step S80, the main body control unit 12 proceeds to step S90.

  In step S <b> 90, the main body control unit 12 performs control to turn off the heater 25.

  Next, in step S100, the main body control unit 12 determines whether or not the heater off time determined in step S50 has elapsed. If the heater off time has not elapsed, that is, if No in step S100, the main body control unit 12 repeats step S100. On the other hand, if the heater-off time has elapsed, that is, if Yes in step S100, the main body control unit 12 returns to step S60.

  In addition, when receiving a hand detection signal from the hand detection unit 11, the main body control unit 12 performs control for performing the hand drying operation of the hand drying device 100 by interrupt processing, and in the current section of the current cycle. Memorize the number of uses. However, the main body control unit 12 continues counting of time even during the manual drying operation. Further, the heater 25 may be turned off during the manual drying operation in order to limit the power supply current.

  As described above, the hand dryer 100 according to the first embodiment is based on the number of times the hand dryer 100 is used in the previous cycle, which is past operation data of the hand dryer 100, in the current section. Is used, and the heater off time is determined according to the determined usage frequency of the section. Thus, the hand dryer 100 determines and controls the heater off time of the heater 25 in accordance with the frequency of use of the hand dryer 100 in the previous cycle. Thereby, the hand dryer 100 can implement | achieve the electricity supply to the heater 25 according to the installation environment of the hand dryer 100, can reduce useless energy consumption more effectively, and can improve energy saving property. .

  That is, according to the hand drying apparatus 100 according to the first embodiment, the user is made uncomfortable by the cold air having a low temperature due to the lack of heat storage in the heating apparatus 21 without making the user troublesome setting work. Without wasting energy consumption, energy savings can be improved. Further, in the hand dryer 100 according to the first embodiment, even when the usage frequency of the section is “low frequency”, the heater temperature is gradually lowered by turning off the heater 25 from the state where the heater 25 is warmed. To go. For this reason, a heating means heats after detecting a person, and compared with the patent document 1 which a user uses from the state which the heating means cooled down, it does not make a user feel cold feeling and discomfort.

  Note that in step S50 in the process shown in FIG. 8 described above, if past data does not exist, it is determined that the use frequency is medium frequency and the heater off time is determined to give the user discomfort due to cold air. The above-described effects can be obtained after the next cycle.

Embodiment 2. FIG.
In the second embodiment, in the control method for the hand drying apparatus 100 described in the first embodiment, control for changing the heater off time in consideration of the use frequency of the hand drying apparatus 100 in the current cycle will be described. FIG. 9 shows how the hand dryer 100 is used in the previous cycle in the method for controlling the heating device 21 of the hand dryer 100 according to the second embodiment of the present invention. It is a figure which shows the relationship between the frequency | count of actual use of the hand-drying apparatus 100, and heater off time.

  The main body control unit 12 has an actual usage count of 3 or less for the first 20 minutes in the current section of the current cycle in which the usage frequency is determined as “low frequency” by the control method described in the first embodiment. In this case, the heater-off time is set to 900 seconds with no change with the setting of “low frequency”. On the other hand, the main controller 12 determines that the actual number of uses for the first 20 minutes in the current section in which the use frequency is determined to be “low frequency” by the control method described in the first embodiment is four times. When it is above, it is determined that the frequency of use has increased, and the heater off time in this section is changed to 750 seconds.

  Further, the main body control unit 12 sets the actual number of uses for the first 20 minutes in the current section of the current cycle in which the use frequency is determined as “medium frequency” by the control method described in the first embodiment to 3 If it is less than or equal to the number of times, it is determined that the use frequency has decreased, and the heater off time in this section is changed to 750 seconds. On the other hand, the main body control unit 12 determines that the actual number of uses for the first 20 minutes in the current section in which the use frequency is determined to be “medium frequency” by the control method described in the first embodiment is 4 to 7 times. In the following cases, the heater-off time in this section is set to 600 seconds with no change while the “medium frequency” is set. In addition, the main body control unit 12 has an actual use count of 8 or more times in the first 20 minutes in the current section in which the use frequency is determined as “medium frequency” by the control method described in the first embodiment. In this case, it is determined that the frequency of use has increased, and the heater off time in this section is changed to 450 seconds.

  The main body control unit 12 uses the actual frequency of use for the first 20 minutes of the current cycle of the current cycle in which the usage frequency is determined as “high frequency” by the control method described in the first embodiment to be 7 times or less. If it is, it is determined that the frequency of use is low, and the heater off time in this section is changed to 450 seconds. On the other hand, the main body control unit 12 has an actual use count of 8 or more times in the first 20 minutes in the current section in which the use frequency is determined as “high frequency” by the control method described in the first embodiment. In this case, the heater off time in this section is set to “high frequency” and remains unchanged for 300 seconds.

  In the above process, the first 20 minutes of the section is used as a determination period for the current cycle usage frequency, and the heater off time is not corrected.

  FIG. 10 is a flowchart showing a control procedure of the heating device 21 of the hand-drying device 100 according to Embodiment 2 of the present invention. The control method of heating device 21 in the second embodiment is different from the control method of heating device 21 in the first embodiment in that step S210 is performed instead of step S50 shown in the flowchart of FIG.

  In step S210, the main body control unit 12 determines the use frequency of the section in the current section of the current cycle based on past operation data as in step S50. Then, the main body control unit 12 determines the heater off time by reflecting the actual frequency of use in the current section of the current cycle in the determined usage frequency of the section.

  As described above, in the method for controlling the heating device 21 according to the second embodiment, the processing described in the first embodiment is performed in the current section of the current cycle, which is the current frequency of use of the hand dryer 100. By reflecting the information on the number of times of use, the heater off time is controlled in accordance with the use status of the hand dryer 100 in the current cycle, even if the past operation data of the hand dryer 100 and the current user use frequency are different. can do. Therefore, in the method for controlling the heating device 21 according to the second embodiment, it is possible to realize energization to the heater 25 that is more suitable for the actual use situation and more suitable for the installation environment of the hand dryer 100, and wasteful energy consumption. Can be more effectively reduced and energy saving can be improved.

  In the second embodiment, the heater off time is corrected based on the actual number of uses for the first 20 minutes of the section. However, the heater off time may be corrected based on the actual number of uses for the immediately preceding section of 20 minutes. Good. FIG. 11 is a schematic diagram for explaining an example in which the heater off time is corrected by the actual number of times of use in the immediately preceding section 20 minutes. For example, as illustrated in FIG. 11, a case is assumed in which a one-hour section A is followed by a one-hour section B. The section A is divided into a section a, a section b, and a section c which are short sections of 20 minutes. The section B is divided into a section d, a section e, and a section f, which are 20-minute short sections. Referring to FIG. 11, a description will be given of the concept of correcting the heater off time based on the actual number of uses for the first 20 minutes of the section and correcting the heater off time based on the actual number of uses for the immediately preceding section of 20 minutes.

  When the heater off time is corrected based on the actual number of times of use for the first 20 minutes in the section, in the section A, the main body control unit 12 determines according to the use frequency in the section a, that is, according to the actual use number in the section a The heater off time of the section b and the section c is corrected. Similarly, in the section B, the main body control unit 12 corrects the heater-off time in the sections e and f according to the use frequency in the section d, that is, according to the actual number of uses in the section d.

  On the other hand, when the heater off time is corrected by the actual number of times of use for the last 20 minutes, the main body control unit 12 determines the interval b according to the frequency of use in the interval a, that is, according to the actual number of uses in the interval a. Correct the heater off time. Similarly, the main body control unit 12 corrects the heater off time in the section c according to the actual number of uses in the section b, and corrects the heater off time in the section d according to the actual number of uses in the section c. In addition, the main body control unit 12 corrects the heater off time in the section e according to the actual number of uses in the section d, and corrects the heater off time in the section f according to the actual number of uses in the section e.

  By doing in this way, it becomes possible to correct | amend heater off time accurately according to the change of the last use frequency.

  In the second embodiment, the heater off time is changed in consideration of the current use situation in addition to the determination of the use frequency based on the past operation data. However, the heater off time is changed only in the current use situation. It may be changed. Here, “only the current use status” means that the heater off time is set based on “only the operation data immediately before 20 minutes” as described above, for example. Regardless of whether the heater off time is set using the operation data of one cycle before or the heater off time is set only based on the current use state, the heater control is performed based on “past operation data”.

Embodiment 3 FIG.
In the third embodiment, in the control method of the heating device 21 of the hand drying device 100 described in the first embodiment or the second embodiment, control for determining a closed day of the facility where the hand drying device 100 is installed will be described. To do.

  FIG. 12 is a diagram illustrating an example of a time chart for turning on and off the heater 25 in the method for controlling the heating device 21 of the hand dryer 100 according to the third embodiment of the present invention. In FIG. 12, the heater temperature of the heater 25 is shown on the vertical axis, and the count time after the power of the hand dryer 100 is turned on is shown on the horizontal axis. In FIG. 12, when the usage frequency of the section is “low frequency”, “medium frequency”, and “high frequency”, the main body control unit 12 controls the heater 25 according to the control method of the heating device 21 in the third embodiment. The time chart of the heater temperature of the heater 25 is shown schematically.

  If the hand dryer 100 is not used for a predetermined time in the current cycle even though the hand dryer 100 is used in the previous cycle, the main body control unit 12 determines that the current cycle corresponds to a closed day. Judge that. As an example, the main body control unit 12 determines that the current cycle falls on a closed day when the hand dryer 100 is not used for one or more sections in the first or second embodiment, that is, for one hour or longer. To do. Then, the main body control unit 12 sets the number of times of use in the previous cycle for a certain period of time from the time when it is determined that the current cycle falls on a closed day, for example, one section described in the first or second embodiment, that is, one hour. Regardless, the heater off time is extended to a predetermined extended heater off time that is determined in advance and stored in the main body control unit 12. An example of the extended heater off time is 1200 seconds.

  In the cycle following the cycle determined to be a closed day, the operation data of the hand dryer 100 of the cycle before the cycle determined to be a closed day, that is, the operating day of the facility where the hand dryer 100 is installed. 7 The heater off time may be determined using the operation data of the drying apparatus 100. In addition, when the holidays are consecutive, the operation data of the hand dryer 100 in the cycle before the first holiday, that is, the operation data of the hand dryer 100 on the operating day of the facility where the hand dryer 100 is installed is used. Then, the heater off time may be determined.

  In addition, when the manual drying operation of the hand drying apparatus 100 is performed after it is determined that the current cycle corresponds to a closed day, the main body control unit 12 determines again that the current cycle corresponds to the working day, and the heater What is necessary is just to determine an off time. Therefore, the main body control unit 12 determines whether the current cycle is a closed day or an operating day. That is, depending on the installation environment in which the hand dryer 100 is installed, generally, the number of times the current cycle is used is relatively large on a closed day. Moreover, if it is an operation day, the frequency | count of use of the present cycle will increase significantly. Therefore, determining whether the current cycle is a closed day or a working day can be translated into predicting whether the number of uses in the current cycle is high or low. That is, the main body control unit 12 predicts the current use frequency of the hand dryer 100 based on current operation data that is data related to the current predetermined operation of the hand dryer 100, and the result of the prediction The heater 25 can be controlled based on the above.

  FIG. 13 is a flowchart showing a control procedure of the heating device 21 of the hand dryer 100 according to Embodiment 3 of the present invention. The difference between the control method of heating device 21 in the third embodiment and the control method of heating device 21 in the first embodiment is that steps S310 and S320 are performed between steps S50 and S60 shown in the flowchart of FIG. It has been added.

  In step S310, the main body control unit 12 determines whether or not the hand dryer 100 has been used within one hour. Whether or not the hand dryer 100 is used can be determined based on whether or not the hand detection signal from the hand detection unit 11 has been received for an arbitrary threshold number of times or more. The reception frequency of the hand detection signal from the hand detection unit 11 in the main body control unit 12, that is, the threshold value of the number of hand detections, used for the determination of the closed day and the working day can be set to an arbitrary number.

  If the hand dryer 100 is not used within one hour, that is, if No in step S310, the main body control unit 12 determines in step S320 that the current cycle corresponds to a closed day, and extends the heater off time by extending the heater off time. Extend to time. In this case, in step S100, the main body control unit 12 determines whether or not the extended heater off time extended in step S320 has elapsed.

  On the other hand, if the hand dryer 100 is used within one hour, that is, if Yes in step S310, the main body control unit 12 proceeds to step S60.

  Note that the number of receptions of the hand detection signal from the hand detection unit 11 in the main body control unit 12, that is, the threshold for the number of hand detections, used for the determination of a closed day and an operating day, is a switch or the like not shown in the hand dryer main body 1. The user may be able to set.

  Further, in FIG. 13, a process for determining a closed day and extending the heater off time when “the hand dryer 100 has not been used for a certain time or longer” is applied to the control method of the heating device 21 in the first embodiment. However, in the control method of the heating device 21 according to the second embodiment, a process of determining a closed day and extending the heater off time when “the hand dryer 100 is not used for a certain time or longer” is applied. May be.

  As described above, in the method for controlling the heating device 21 according to the third embodiment, the heater off time is determined by determining the holiday of the facility where the hand dryer 100 is installed in the process described in the first embodiment. By adding control, wasteful energy consumption on closed days can be reduced. Therefore, in the method for controlling the heating device 21 according to the third embodiment, it is possible to realize the energization of the heater 25 that is more suitable for the actual use situation, more suitable for the installation environment of the hand dryer 100, and wasteful energy consumption. Can be more effectively reduced and energy saving can be improved.

  By controlling the heating device 21 as described above, for example, when only a building administrator uses the building on a closed day, the heater off time can be extended on the closed day, thereby suppressing wasteful energy consumption. Is possible.

  In the above description, the main body control unit 12 determines a closed day when “the hand dryer 100 has not been used for a certain time or more”. However, if the frequency of use is extremely low, the current cycle is a closed day. You may determine that it corresponds. One example when the frequency of use is extremely low is when the number of hand detections is two or less during one hour. Further, in the above, the main body control unit 12 determines that the current cycle corresponds to an operating day when the hand dryer 100 is used after it is determined to be a closed day, but after it is determined to be a closed day. When the usage frequency increases, it may be determined that the current cycle corresponds to an operating day. One example of a case where the usage frequency is extremely high is a case where the number of hand detections is three or more in one hour.

Embodiment 4 FIG.
In the fourth embodiment, control for changing the heater-off time based on the operation data of the hand dryer 100 in a plurality of past cycles will be described. FIG. 14 is a flowchart showing a control procedure of the heating device 21 of the hand dryer 100 according to Embodiment 4 of the present invention. The control method of heating device 21 in the fourth embodiment is different from the control method of heating device 21 in the first embodiment in that step S410 is performed instead of step S50 shown in the flowchart of FIG.

  In the control method of the heating device 21 of the hand dryer 100 in the fourth embodiment, 24 hours is one cycle, and the operation data of the hand dryer 100 for a total of 7 cycles, that is, the data on the number of times the hand dryer 100 is used. Remember. In step S410, the main body control unit 12 determines the heater-off time based on the stored operation data of the hand dryer 100 of the past plural cycles. In this case, in step S100, the main body control unit 12 determines whether or not the heater off time determined in step S410 has elapsed.

  That is, for example, in the second cycle, step S410 is performed based on the number of times the hand dryer 100 in the first cycle is used. In the third cycle, step S410 is performed based on the number of times the hand dryer 100 is used in the first and second cycles. In the third cycle and thereafter, in step S410, an average value of the number of times of use in each section is calculated from the number of times of use of the hand dryer 100 in a plurality of cycles before the current cycle, and “use” is calculated based on the average value. The heater off time is determined after determining the “frequency”. In the third cycle, the main body control unit 12 calculates an average value of the number of times of use in each section from the number of times of use of the hand dryer 100 in the first and second cycles. Therefore, the main body control unit 12 manages the elapsed time after turning on the power of the hand dryer 100 in a cycle, and controls the heater 25 using an average of operation data in a plurality of past cycles.

  Note that the above-described control for changing the heater-off time based on the operation data of the hand dryer 100 in a plurality of past cycles may be applied to the method for controlling the heating device 21 in the second and third embodiments.

  As described above, by storing the data on the number of times the hand dryer 100 is used for a plurality of cycles, the “hand” is not the “frequency of use of the hand dryer 100” of only the previous cycle but the “hand” based on the average value of the past multiple cycles. The heater off time can be controlled based on the “frequency of use of the drying apparatus 100”. That is, it is possible to control the heater-off time based not on the “frequency of use of the hand dryer 100” on the previous day but on the “frequency of use of the hand dryer 100” based on an average value for one week. As a result, the accuracy of the “frequency of use of the hand dryer 100” increases, in other words, by suppressing erroneous determination of the “frequency of use of the hand dryer 100”, wasteful energy consumption can be suppressed.

  If the closed days are determined as described in the third embodiment, it is possible to remove the closed days data from the target of averaging the number of times the hand dryer 100 is used. "Is further improved.

  In the above description, the example in which the use frequency data of the hand dryer 100 for one week is accumulated to determine the heater off time is shown. Averaging in units is possible. For example, in the third cycle, the “frequency of use of the hand dryer 100” is determined based on the average value of the use frequency data of the hand dryer 100 in the first cycle and the second cycle. In the case of accumulation, the heater off time is not controlled by averaging the use frequency data of the hand dryer 100 from the first cycle to the 14th cycle, and the first cycle and the eighth cycle are not performed for the first time in the 15th cycle. The “use frequency of the hand dryer 100” is determined based on the average value of the use frequency data of the hand dryer 100. Thereby, it becomes possible to determine the “frequency of use of the hand dryer 100” in units of days of the week.

  From this, by acquiring and accumulating the number of times the hand dryer 100 is used for one week while controlling the heater off time, the heater off time is set longer on closed days when the usage frequency is extremely low, reducing power consumption. can do. In addition, in the case of the hand dryer 100 that is frequently used on holidays and holidays, such as the hand dryer 100 installed in a commercial facility, the heater off time is set short, and the temperature caused by insufficient heat storage in the heater 21 is set. The user does not feel uncomfortable with hand-dried operation with low cold air.

  Further, when the hand dryer 100 is used frequently, the temperature of the heater 25 is kept high and the heat storage temperature of the heater 25 can be kept high, so that the drying time of the hand is shortened and the rotation rate of the user is high. Thus, the waiting time for using the hand dryer 100 can be reduced.

  Further, if the number-of-uses data of the hand dryer 100 is accumulated for one year, it is possible to control the heater off time according to a long holiday such as the year-end and New Year holidays or the season.

Embodiment 5 FIG.
In Embodiment 1 to Embodiment 4 described above, 24 hours is defined as one cycle, but in Embodiment 5, a control method is described in which the cycle from power on to off of the hand dryer 100 is defined as one cycle.

  As a method of using the hand dryer 100, there are cases where the power is turned on and off at approximately the same time every day. As an example, there is a case where the power of the hand dryer 100 is turned on at 8 am every day and the power of the hand dryer 100 is turned off at 9 am every day. In the case of such a method of using the hand drying apparatus 100, when the control with 24 hours as one cycle as shown in the first to fourth embodiments is applied, for example, in step S50 of FIG. There is no use frequency data of the hand dryer 100 of the previous cycle which is the operation data of the previous cycle. As a result, the heater off time cannot be controlled based on past operation data.

  Therefore, in the fifth embodiment, the main controller 12 can control the heater-off time based on past operation data by setting one cycle from turning on and off the power of the hand dryer 100. . In addition, when the hand dryer 100 is turned on every day at 8:00 am and used in a form where the hand dryer 100 is turned off every day at 9:00 pm, it is exceptionally from 9 pm to 11 pm. For the usage frequency of the section that does not have past operation data, such as when the power is on during the time, the main body control unit 12 may determine “medium frequency” and set the heater off time. Good. As a result, the main body control unit 12 can obtain the effects described in the first to fourth embodiments even in a section in which there is no operation data of the previous cycle, and can be performed without impairing the hot air function. The manual drying operation of the drying apparatus 100 can be controlled.

Embodiment 6 FIG.
In the sixth embodiment, a case where a clock function is added to the hand dryer 100 will be described. FIG. 15 is a functional configuration diagram of main parts related to the control of the hand dryer 100 according to Embodiment 6 of the present invention. In FIG. 15, a clock 13 is added to the configuration shown in FIG.

  In the sixth embodiment, the main body control unit 12 determines the actual day of the week and time by the function of the clock 13, and manages the cycle and section in association with the actual day of the week and time while managing the first embodiment. As in the case of the fifth embodiment, the heater-off time is controlled according to the use frequency while acquiring the operation data of the hand dryer 100.

  When the power of the hand dryer 100 is turned off and then turned on again, the main body control unit 12 does not know at which timing past data should be used. Therefore, the main body control unit 12 uses the clock 13 to check the current time, and in the same manner as in the first to fifth embodiments described above, the stored hand dryer 100 at the same time in the past. The heater off time is controlled based on the usage frequency data. Thereby, the main body control unit 12 can control the heater off time according to the use frequency without setting the operation of the heater 25 during standby corresponding to the time. That is, by providing a clock function in the hand dryer 100, the main body control unit 12 can grasp the accurate time, and thus can use past data 24 hours before the current time. Therefore, the user does not need to perform troublesome setting work for the heater 25 during standby.

Embodiment 7 FIG.
FIG. 16 is a diagram showing an example of a time chart for turning on and off the heater 25 of the hand dryer 100 according to the seventh embodiment of the present invention. In FIG. 16, the heater temperature of the heater 25 is shown on the vertical axis, and the counting time after the power of the hand dryer 100 is turned on is shown on the horizontal axis. In FIG. 16, when the usage frequency of the section is “low frequency”, “medium frequency”, and “high frequency”, when the main body control unit 12 controls the upper limit value of the heater temperature of the heater 25, The time chart of heater temperature is shown typically.

  In the first to sixth embodiments described above, the main body control unit 12 controls the heater off time, but the main body control unit 12 fixes the heater off time and turns on the heater 25 as shown in FIG. The upper limit value of the heater temperature of the heater 25 may be controlled. In this case, the main body control unit 12 determines the use frequency of the section in the current section based on the number of times the hand dryer 100 is used in the section of the previous cycle, which is past operation data of the hand dryer 100. The upper limit value of the heater temperature of the heater 25 is determined according to the determined usage frequency of the section. The heater off time is determined in advance as a fixed value and stored in the main body control unit 12.

  The main body control unit 12 performs control to turn on the heater 25 until the heater temperature of the heater 25 reaches a preset target heater temperature Ta after the power of the hand dryer 100 is turned on. Thereafter, the main body control unit 12 performs control to turn on the heater 25 by changing the upper limit value of the heater temperature in accordance with the upper limit value of the heater temperature determined based on the frequency of use of the section in the previous cycle, and to fix it. Control to turn off the heater 25 is performed in accordance with the heater off time of the value of.

  When the frequency of use of the section is “high frequency”, the upper limit value of the heater temperature of the heater 25 is set to the upper limit value Tu3, which is a higher temperature than the cases of “medium frequency” and “low frequency”. The

  When the usage frequency of the section is “medium frequency”, the upper limit value of the heater temperature of the heater 25 is set to an upper limit value Tu2 that is lower than the upper limit value Tu3. Thereby, compared with the case where the use frequency of a section is "high frequency", the electric power which supplies with electricity to the heater 25 can be suppressed more, and energy saving can be achieved.

  When the usage frequency of the section is “low frequency”, the upper limit value of the heater temperature of the heater 25 is set to an upper limit value Tu1 that is lower than the upper limit value Tu2. Thereby, compared with the case where the use frequency of a section is "medium frequency", the electric power which supplies with electricity to the heater 25 can be suppressed more, and energy saving can be achieved.

  FIG. 17 is a diagram illustrating another example of the on / off time chart of the heater 25 of the hand dryer 100 according to the seventh embodiment of the present invention. In FIG. 17, the heater temperature of the heater 25 is shown on the vertical axis, and the counting time after the power of the hand dryer 100 is turned on is shown on the horizontal axis. In FIG. 17, when the use frequency of the section is “low frequency”, “medium frequency”, and “high frequency”, when the main body control unit 12 controls the lower limit value of the heater temperature of the heater 25, The time chart of heater temperature is shown typically.

  The main body control unit 12 may control the lower limit value of the heater temperature of the heater 25 when the heater 25 is turned off after the heater 25 is turned on as shown in FIG. In this case, the main body control unit 12 determines the use frequency of the section in the current section based on the number of times the hand dryer 100 is used in the section of the previous cycle, which is past operation data of the hand dryer 100. The lower limit value of the heater temperature of the heater 25 is determined according to the determined usage frequency of the section. The heater-on time is determined in advance as a fixed value and stored in the main body control unit 12.

  When the usage frequency of the section is “high frequency”, the lower limit value of the heater temperature of the heater 25 is set to the lower limit value Tl3, which is a higher temperature than the cases of “medium frequency” and “low frequency”. The

  When the usage frequency of the section is “medium frequency”, the lower limit value of the heater temperature of the heater 25 is set to a lower limit value Tl2 lower than the lower limit value Tl3. Thereby, compared with the case where the use frequency of a section is "high frequency", the electric power which supplies with electricity to the heater 25 can be suppressed more, and energy saving can be achieved.

  When the usage frequency of the section is “low frequency”, the lower limit value of the heater temperature of the heater 25 is set to the lower limit value Tl1 lower than the lower limit value Tl2. Thereby, compared with the case where the use frequency of a section is "medium frequency", the electric power which supplies with electricity to the heater 25 can be suppressed more, and energy saving can be achieved. In addition, the heater 25 is turned on and off as shown in the time chart of FIG. 17, and the lower limit value of the heater temperature of the heater 25 is set to a level at which the user does not feel uncomfortable. It is possible to maintain.

  Further, the main body control unit 12 may perform control that combines the above-described control of the upper limit value of the heater temperature and control of the lower limit value of the heater temperature. Also in this case, the power supplied to the heater 25 can be suppressed, and energy saving can be achieved.

  The configuration described in the above embodiment shows an example of the content of the present invention, and can be combined with another known technique, and can be combined with other configurations within the scope of the present invention. It is also possible to omit or change the part.

  DESCRIPTION OF SYMBOLS 1 Hand dryer main body, 2 Main body case, 2a Front protrusion part, 2b Back protrusion part, 2c Opening part, 3 Hand insertion part, 3a Front side nozzle, 3b Back side nozzle, 4 Water receiving part, 5 Drain tank, 6 Air blower, 7 Motor, 8 Turbo fan, 9 Main body inlet, 10a Front exhaust duct, 10b Rear exhaust duct, 11 Hand detector, 12 Main body controller, 13 Clock, 14 Main body controller, 21 Heating device, 22 Frame, 23 Air supply port, 24 Air intake port, 25 Heater, 26 Heater control unit, 27 Power supply unit, 100 Hand dryer, 101 Processor, 102 Memory, Ta Target heater temperature, Tl1, Tl2, Tl3 Lower limit value, Tu1, Tu2, Tu3 upper limit.

The main body control unit 12 is realized, for example, as a processing circuit having the hardware configuration shown in FIG. When the main body control unit 12 is realized as a processing circuit having the hardware configuration illustrated in FIG. 4, the main body control unit 12 includes, for example, the processor 101 that is the arithmetic unit illustrated in FIG. This is realized by executing the stored program. A plurality of processors and a plurality of memories may cooperate to realize the above function. Further, a part of the functions of the main body control unit 12 may be mounted as an electronic circuit, and the other parts may be realized using the processor 101 and the memory 102.

The section is a second management unit for managing the elapsed time after the power of the hand dryer 100 is turned on after the power of the hand dryer 100 is turned on, in which one cycle is divided every hour. It is. Therefore, one cycle is divided into 24 sections, and the first one hour of the cycle is the first section, and the next one time is the second section. Interval, number of intervals to manage to identify the section is updated is increased by one every hour.

The main body control unit 12 then sets the heater off time, that is, the time during which the heater 25 that has reached the target heater temperature Ta is turned off, that is, the heater 25 is turned on, based on the determined usage frequency of the current section. The time when 25 is turned off is determined. The target heater temperature Ta is a temperature at which the user can comfortably feel the temperature when the warm air supplied from the heating device 21 to the hand drying device main body 1 is jetted from the front side nozzle 3a and the back side nozzle 3b to the manual insertion portion 3. This is the target temperature for raising the temperature of the heater 25 in order to obtain warm air. The target heater temperature Ta is determined in advance and stored in the main body control unit 12. The target heater temperature Ta can be set to an arbitrary temperature depending on the use environment of the hand dryer 100.

In holiday with the determined cycle of the next cycle, the previous cycle of operation data of the hand drying apparatus 100 is determined to correspond to holiday cycle, ie hand facilities working day the hand drying apparatus 100 is installed the operating data drying device 100 may be determined heater off time using. In addition, when the holidays are consecutive, the operation data of the hand dryer 100 in the cycle before the first holiday, that is, the operation data of the hand dryer 100 on the operating day of the facility where the hand dryer 100 is installed is used. Then, the heater off time may be determined.

DESCRIPTION OF SYMBOLS 1 Hand dryer main body, 2 Main body case, 2a Front protrusion part, 2b Back protrusion part, 2c Opening part, 3 Hand insertion part, 3a Front side nozzle, 3b Back side nozzle, 4 Water receiving part, 5 Drain tank, 6 Air blower, 7 Motor, 8 Turbo fan, 9 Main body inlet, 10a Front exhaust duct, 10b Rear exhaust duct, 11 Hand detector, 12 Main body controller, 13 Clock , 2 1 Heating device, 22 Frame, 23 Air inlet , 24 Intake port, 25 heater, 26 heater control unit, 27 power supply unit, 100 hand dryer, 101 processor, 102 memory, Ta target heater temperature, Tl1, Tl2, Tl3 lower limit value, Tu1, Tu2, Tu3 upper limit value.

Claims (11)

A hand insertion part formed in a concave shape in the main body housing;
A blower unit provided in the main body housing for generating an air flow;
A nozzle that is provided on a wall surface of the manual insertion portion and injects the air flow from the blower portion into the manual insertion portion;
A heater for heating the air supplied to the blower;
A hand detection unit for detecting a hand inserted in the hand insertion unit;
A control unit for controlling the driving of the heater while controlling the driving of the air blowing unit based on information on the hand detected by the hand detecting unit;
A hand-drying device for wiping away moisture adhering to the hand inserted into the hand insertion portion by the air flow ejected from the nozzle,
The control unit controls the heater based on past operation data, which is data related to past operation of the hand dryer;
Hand drying device characterized by. The past operation data includes information on an elapsed time after the hand dryer is turned on and information on the number of times the hand dryer is used per predetermined time,
The hand dryer according to claim 1. The control unit determines information on the current use frequency of the hand dryer based on the past operation data, and controls the heater based on the information on the current use frequency;
The hand dryer according to claim 1 or 2, wherein The control unit corrects the information on the current use frequency based on information on the current actual use frequency in the hand dryer, and controls the heater on the basis of the corrected information on the current use frequency. ,
The hand dryer according to claim 3. The control unit predicts the current use frequency of the hand dryer based on current operation data that is data related to the current predetermined operation of the hand dryer, and based on the prediction result Controlling the heater
The hand dryer according to any one of claims 1 to 4, wherein The control unit manages an elapsed time after the power of the hand dryer is turned on in a predetermined management time unit, and controls the heater using an average of the past operation data in a plurality of the management time units. To do,
The hand dryer according to any one of claims 1 to 5, wherein: The control unit includes a storage unit that stores the past operation data, and controls the heater based on the past operation data read from the storage unit.
The hand dryer according to any one of claims 1 to 6, wherein It has a clock function,
The control unit acquires time information by a clock function and manages the information on the elapsed time in association with the time information;
The hand dryer according to claim 2. The control unit controls a heater off time which is a time during which the heater is turned off after the heater reaches a target temperature;
The hand dryer according to any one of claims 1 to 8, wherein The control unit controls an upper limit value of a temperature of the heater when the heater is turned on;
The hand dryer according to any one of claims 1 to 8, wherein The control unit controls a lower limit value of the temperature of the heater when the heater is turned off after the heater is turned on;
The hand dryer according to any one of claims 1 to 8, wherein

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