JP4150976B2 - Hand dryer - Google Patents

Hand dryer Download PDF

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Publication number
JP4150976B2
JP4150976B2 JP2005023608A JP2005023608A JP4150976B2 JP 4150976 B2 JP4150976 B2 JP 4150976B2 JP 2005023608 A JP2005023608 A JP 2005023608A JP 2005023608 A JP2005023608 A JP 2005023608A JP 4150976 B2 JP4150976 B2 JP 4150976B2
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hand
means
sensor
heater
high
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JP2006204738A (en
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信吾 佐藤
義弘 米澤
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Toto株式会社
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Description

  The present invention relates to a hand-drying device installed in a public toilet wash space or the like, and particularly relates to a hand-drying device that is easy to use and suitable for suppressing power consumption.

In the conventional hand drying device, in the hand drying device that inserts and removes hands from the openings between the walls of the hand drying devices facing each other and dries, the high speed air is provided at substantially the same position on each of the walls facing each other. Each of the nozzles to be ejected and the inner wall of one of the walls facing each other are provided in a row so as to be orthogonal to the hand insertion / extraction direction, and a light emitting element group emitting light, and the other inner wall of the wall A light receiving element group that receives light from the light emitting element group, and illumination means is provided between the elements of the light receiving element group, There is one that illuminates the space between the facing walls (for example, see Patent Document 1).
In such a case, there is a problem that the power consumption of the hand dryer increases as much as the lighting means is turned on.

In addition, it is equipped with a light sensor that detects the brightness of the surroundings of the installation site, and when the surroundings become dark, the illumination means is turned on to illuminate the inside of the drying room where the hands are dried, and further, a human sensor is provided. There has been a hand dryer that turns on the illumination means only when the user approaches (see, for example, Patent Document 2). According to this hand drying device, the user's anxiety when inserting a hand into a dark drying room can be wiped out, and when it is unnecessary, the power consumption can be suppressed by turning off the light. .
However, when a person detection sensor is installed, the lighting means is turned on only by a person who does not use the hand dryer coming close to the hand dryer, so that the person feels uncomfortable and does not use the hand dryer. However, turning on the illumination consumes wasted power.
Further, when the illumination means is turned off, there is a problem in usability that it is difficult for a user, an installation manager, or an inspector to determine whether or not the hand dryer is in an operable state.
Furthermore, there has been a problem that the power consumption reduction effect by turning off the illumination means, which is the original purpose, is offset by the power consumption of the optical sensor and the human sensor.
Japanese Patent Laid-Open No. 2001-128885 (page 9, FIG. 12) JP 2002-345682 (page 6, FIG. 5)

  The present invention has been made to solve the above-described problems, and the object of the present invention is to improve usability by making it easier for a user, an inspector, and an installation manager to determine the operation and state of the hand dryer. And it is providing the hand-drying apparatus which restrained electric power consumption little.

  In order to achieve the above object, according to the first aspect of the present invention, a drying chamber for inserting a wet hand of a user, a nozzle for blowing air toward the hand inserted in the drying chamber, and a high pressure to the nozzle A high-pressure airflow generating means for supplying an airflow; a sensor for detecting a hand inserted in the drying chamber; an illuminating means for illuminating the drying chamber; and the high-pressure airflow generating means according to the output of the sensor; Control means for controlling the illumination means, the control means is in a first control state in which the illumination means is turned on in accordance with the detection of the hand by the sensor or the start of operation of the high-pressure airflow generator, When the user dries his / her hand, the illumination means is dimmed from the first control state in accordance with the non-detection of the hand by the sensor or the operation stop of the high-pressure airflow generator. Dry initiation by the drying device can inform the user, and when not using hand drying apparatus made it possible to reduce the power consumption by dimming the illumination means.

Further, since the during energization of the hand dryer was set to steadily illuminated the illumination means, the presence or absence of lighting of the illumination means, the available user and inspector and installation manager hand dryer state You can easily recognize that there is less power consumption.

According to the second aspect of the present invention, a heater for heating the high pressure air stream, and a heater setting means for setting the operation of the heater, the lighting means in accordance with the setting of the heater setting means For example, it is possible to notify the installation manager of the level of power consumption depending on whether or not the heater is operated. More preferably, when the heater operation is set, the light color is a warm color system such as red or orange, and when the heater operation is not set, the color is changed to a cool color system such as blue or green. It becomes easier to convey.

According to the third aspect of the present invention, when the operation of the hand dryer is abnormal, the lighting means is controlled to blink, so that the installation manager and the inspector can check whether there is an operation abnormality of the hand dryer. It can be confirmed at a glance, and there is no need for another abnormality display means for that purpose, and the configuration of the hand dryer can be simplified.

  According to the present invention, it is easy to distinguish the operation and state of the hand dryer by the user and the installation manager, thereby improving usability, reducing power consumption, and simplifying the configuration of the hand dryer. There is.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, an embodiment of the invention will be described with reference to the accompanying drawings.

  FIG. 1 is a schematic view showing a use state of a hand dryer according to an embodiment of the present invention. The hand drying apparatus 10 is installed on a wall 1 such as a public washroom, and is used to dry the hands 2 that have been wet by hand washing or the like. When the user dries the hand 2, when the wet hand 2 is inserted into the drying chamber 31 opened at the top of the hand dryer 10, the sensor 32 detects the insertion of the hand 2, and the nozzle 27 automatically The wind blows out and water drops are blown out of the hand 2, so that the hand 2 can be dried without using a handkerchief or towel. In FIG. 1, the nozzle 27 blows wind on the back of the hand 2, but the hand drying device 10 includes a nozzle (not shown) that blows wind on the palm of the hand 2. Hereinafter, when the hand dryer 10 is installed, the side closer to the wall 1 is called the back side, and the side far from the wall 1 is called the palm side. That is, the nozzle 27 in FIG.

  FIG. 2 is a schematic view showing a main part of the hand drying device according to the embodiment of the present invention, and the palm side of the drying chamber 31 is viewed from the slightly upper side above the drying chamber 31 of the hand drying device 10. It is a figure. On the palm side of the drying chamber 31, the palm-side nozzle 17, the light emitting sensor 35, and the illumination means 80 are provided. The palm-side nozzle 17 is a nozzle that blows wind on the palm, not shown in FIG. The light emitting sensor 35 emits light toward the sensor 32 of FIG. 1, and the sensor 32 does not emit a hand detection signal while the light reaches. When the light emitted from the light emitting sensor 35 is blocked by the insertion of the hand into the drying chamber 31, the sensor 32 transmits a hand detection signal to a control unit (not shown). The illumination unit 80 illuminates the inside of the drying chamber 31, but is preferably arranged so that the optical axis of the illumination unit 80 faces downward, and the user looks into the drying chamber 31 from above so as to illuminate the bottom of the drying chamber 31. Even if it is difficult to feel dazzling.

  FIG. 3 is a schematic diagram showing the configuration of the hand dryer according to the embodiment of the present invention, and shows a detachable part in an exploded manner. The hand-drying device 10 has a box 30 whose outer shape is a vertically long rectangular shape, a left side panel 33 that can be detachably attached to the left side of the box 30, and a detachable to the right side of the box 30. A right side panel 34 that can be attached to the bottom of the box body 30, an intake port 11 that sucks in air provided at the bottom of the box body 30, an intake filter 39 that can be mounted on the intake port 11, and a bottom part of the box body 30. It comprises a drainage tray 38 that can be mounted. The box 30 includes a housing 51 having a front opening and a plate-shaped surface cover 50 that closes the front opening of the housing 51.

  The intake filter 39 has a mesh structure, and cleans the air to remove dust and dirt in the air sucked from the intake port 11 sucked from the intake port. Send clean air. The drainage tray 38 has a tray shape having an upper opening. Water droplets blown from the hands when the hands are dried gather at the bottom of the drying chamber 31, then flow down drainage channels provided on the left and right side surfaces of the housing 51, and are stored in the drainage tray 38.

  The hand dryer 10 includes a palm-side fan motor 14, an instep-side fan motor 24 and a control means 60 which are high-pressure airflow generating means for blowing air. The high-pressure air flow created by the palm-side fan motor 14 is supplied to the palm-side nozzle 17 through the palm-side air passage 16, blown out from the palm-side nozzle 17 into the drying chamber 31 as high-speed air, and enters the drying chamber 31. It is sprayed on the palm side of the inserted hand. Similarly, the high-pressure air flow produced by the upper fan motor 24 is supplied to the upper nozzle 27 through the upper air blowing passage 26, blown into the drying chamber 31 from the upper nozzle 27 as high-speed air, and dried. It is sprayed on the back side of the hand inserted into the chamber 31.

  A palm-side heater 19 is disposed inside the palm-side air passage 16, and a back-side heater 29 is disposed inside the back-side air passage 26. A high-pressure air flow passing through the palm-side air passage 16 and the back-side air passage 26. Heat. The wind blown from the palm-side nozzle 17 and the back-side nozzle 27 and blown onto the hand becomes warm air, so that the hand can be dried more quickly, and the coldness when the high-speed wind hits the hand is reduced and more comfortable. You can dry your hands.

  FIG. 4 is a schematic view showing the configuration of the hand dryer according to the embodiment of the present invention, as viewed from the bottom of the hand dryer 10. For simplicity, the drain pan 38 is not shown. At the bottom of the hand dryer 10, a power switch 61 for turning on / off the power to the control means 60 of the hand dryer 10, the palm side fan motor 14 and the back fan motor 24 during the drying operation of the hand dryer 10. The air volume changeover switch 62 for switching the air volume of the airflow and the heater changeover switch 63 for turning on / off the energization of the palm side heater and the instep side heater during the drying operation of the hand dryer 10 are provided. The hand-drying device 10 has four types of combinations of switching of the air volume changeover switch 62 and the heater changeover switch 63: heater ON when the air volume is large, heater ON when the air volume is small, heater OFF when the air volume is large, and heater OFF when the air volume is small. Is possible. In addition, if a variable resistor is used for the air volume change switch 62 and the heater change switch 63 so as to variably increase and decrease the air volume and the energization amount to the heater, it is possible to cope with the preference of the user and the installer. Become.

  FIG. 5 is a control block diagram of the hand dryer according to the embodiment of the present invention. The arrows in FIG. 5 indicate the direction of signal input / output and power supply. In the hand dryer 10, the power switch 61 is between the control unit 60 and the power source, and turns on / off the power supply to the control unit 60. First, the control means 60 supplies power to the light emitting sensor 35 and the sensor 32, and based on the hand detection signal from the sensor 32 receiving the light from the light emitting sensor 35, the palm side fan motor 14, the back side fan motor 24, the palm side The heater 19 and the upper heater 29 are energized. At that time, according to the ON / OFF setting of the air volume changeover switch 62 detected by the control means 60, the energization contents to the fan motor are switched, and the air volume and speed of the air blown from the nozzle are changed by changing the rotation speed of the fan motor. To do.

Similarly, according to the ON / OFF setting of the heater selector switch 63, the presence / absence of power supply to the heater is switched, and the air blown from the nozzle is changed between the warm air heated by the heater and the unheated air. Further, the control means 60 controls energization to the illumination means 80 based on the hand detection signal from the sensor 32. The lighting switch 64 is for turning on / off the always-on lighting when the installation manager wants to further reduce the power consumption. The lighting switch 64 is a place different from the air volume changeover switch 62, for example, the same hand dryer as the control means 60. 10 may be provided.

6 is a time chart representing an outline of the operation of the hand drying equipment according to the embodiment of the present invention. In FIG. 6 , the lighting means is brightened (increased in brightness) in accordance with the start of energization of the fan motor, and bright lighting is started to enter the first control state, and the illumination means is dimmed in accordance with the deenergization of the fan motor. And then dimly lit. Even when the operation is stopped, it is always lit dark so that a user or an inspector can visually confirm that the hand dryer is in an operable state. The lighting means 80 repeats, for example, energization for 3 milliseconds and non-energization for 7 milliseconds at the time of dark lighting, and by always energizing at the time of bright lighting, it is possible to make a difference between light and dark. Can inform the start of the drying operation. The power consumption of the illuminating unit 80 can be suppressed to about 30% in proportion to the energization time in the dark lighting with respect to the bright lighting in which all energization is performed. Although blinking is performed at 10 milliseconds per cycle, that is, 100 times per second, it appears to be continuously lit by an afterimage effect with the naked eye, and flickering is unlikely to occur. In order to give a difference between brightness and darkness, voltage control, current control, and power control may be used in addition to such energization time control. The time during which the lighting means is lit brightly is generally much shorter than the time during which the illuminating means is lit darkly. Total power consumption can be reduced. Therefore, for example, the high-intensity light-emitting diode can be turned on with less power consumption than when the low-intensity light-emitting diode is always lit brightly, so that the effect of brightening by the illumination means can be transmitted more strongly to the user.

FIG. 7 is a time chart showing an outline of the operation of another example of the hand dryer according to the embodiment of the present invention. In FIG. 7 , the illumination means is lit brightly in accordance with the transmission of the detection signal of the sensor 32, and the illumination means is lit darkly in accordance with the stop of the detection signal. If it does in this way, after a user puts a hand, he can prepare to start drying from now on. In addition, the user knows that his / her hand has not been detected during the drying operation. If the drying operation can be stopped as it is, the user can pull out the hand, and if the drying operation is continued, the hand is dried again. plug in the chamber, to aid in quick decision-making of the user with.

Timing of light increase / dimming or illumination means is not intended to match the operation of the fan motor may be one that matches the start-stop of the detection signal of the sensor 32. In addition, with these combinations, it is also possible to perform in accordance with the energization of the fan motor at the time of brightening, and to synchronize with the stop of the sensor detection signal at the time of dimming, that is, based on the sensor detection signal and the detection time. Any combination is possible as long as energization to the illumination means is controlled.

  When the light color of the illumination means 80 is linked to the setting of the heater changeover switch, for example, when the heater is ON, it becomes easier to feel the warmth by setting the light color of the LED to a warm orange, and when the heater is OFF, the cold color If it is blue or white, it will be easier to feel cool. In order to change the color of the illumination means 80, for example, one illumination means 80 is provided with two types of light emitting diodes (LEDs) of orange and bluish white. If only the LED is lit, it becomes cold.

Next, an example of operation of the hand dryer according to the embodiment of the present invention when an abnormality occurs will be described. First, as an example, if the sensor 32 continues to transmit a hand detection signal for a predetermined time or longer, first, if there is a fan motor and heater in operation, the energization is stopped. Next, the lighting unit 80 starts blinking and is repeatedly turned on for about 4 seconds and turned off for about 1 second. At this time, the illumination unit 80 is turned on so as to be brightest. This blinking continues until the sensor 32 stops sending a hand detection signal. In some cases, the light emitting sensor 35 on the other side where the sensor 32 does not receive light can be identified. In this case, the light emitting sensor 35 is used for the hand of the sensor 32 until light from the light emitting sensor 35 is received. It is preferable to ignore the transmission of the detection signal and supply power to the fan motor and the heater only by the hand detection signal of the sensor 32 by the other light emitting sensor 35. In this way, even if some of the light emitting sensors 35 break down, the hand dryer is not completely usable while blinking the illumination means and displaying an abnormality, and from the occurrence of the abnormality to the repair of the failure. During this time, the user is not troubled . When a plurality of types of abnormalities of the hand dryer are blinked and displayed on the lighting unit 80, the inspector can easily determine what kind of abnormality has occurred during the inspection by changing the blinking pattern or the blinking cycle.

It is the schematic which shows the use condition of the hand dryer which concerns on embodiment of this invention. It is the schematic which shows the principal part of the hand dryer which concerns on embodiment of this invention. It is the schematic which shows the structure of the hand dryer which concerns on embodiment of this invention. It is the schematic which shows the structure of the hand dryer which concerns on embodiment of this invention. It is a control block diagram of the hand dryer according to the embodiment of the present invention. It is a time chart showing operation | movement of the hand dryer which concerns on embodiment of this invention. It is a time chart showing the outline of operation | movement of another Example of the hand-drying apparatus which concerns on embodiment of this invention .

Explanation of symbols

1: Wall 2: Hand 10: Hand dryer 11: Inlet 14: Palm side fan motor 16: Palm side air passage 17: Palm side nozzle 19: Palm side heater 24: Back side fan motor 26: Back side air passage 27 : Upper nozzle 29: Upper heater 30: Box 31: Drying chamber 32: Sensor 33: Left side panel 34: Right side panel 35: Light emission sensor 38: Drain pan 39: Intake filter 50: Front cover 51: Howjin 60 : Control means 61: Power switch 62: Air volume changeover switch 63: Heater changeover switch 80: Illumination means

Claims (3)

  1. A drying chamber for inserting a user's wet hand, a nozzle for blowing air toward the hand inserted into the drying chamber, a high-pressure air flow generating means for supplying a high-pressure air flow to the nozzle, and a insertion into the drying chamber A sensor for detecting the hand that has been placed, an illuminating means for illuminating the drying chamber, and a control means for controlling the high-pressure airflow generating means and the illuminating means in accordance with the output of the sensor, the control means comprising: In the first control state in which the illumination means is turned on in accordance with the detection of the hand by the sensor or the start of the operation of the high-pressure airflow generator, the non-detection of the hand by the sensor or the operation stop of the high-pressure airflow generator Accordingly, the lighting means is dimmed from the first control state, and the lighting means is always lit during energization in which the hand drying apparatus can be used .
  2. A heater for heating the high-pressure air flow; and heater setting means for setting the operation of the heater; and controlling the light color of the illumination means according to the setting of the heater setting means. The hand dryer according to claim 1 .
  3. Wherein the abnormal operation of the hand dryer, hand drying apparatus according to claim 1 or 2, characterized in that control to flash the illumination means.
JP2005023608A 2005-01-31 2005-01-31 Hand dryer Active JP4150976B2 (en)

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Application Number Priority Date Filing Date Title
JP2005023608A JP4150976B2 (en) 2005-01-31 2005-01-31 Hand dryer

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Application Number Priority Date Filing Date Title
JP2005023608A JP4150976B2 (en) 2005-01-31 2005-01-31 Hand dryer

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JP2006204738A JP2006204738A (en) 2006-08-10
JP4150976B2 true JP4150976B2 (en) 2008-09-17

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Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2467661B (en) 2007-09-20 2013-02-13 Bradley Fixtures Corp Lavatory system
MX366199B (en) 2009-10-07 2019-06-25 Bradley Fixtures Corp Lavatory system with hand dryer.
US8850713B2 (en) 2010-07-06 2014-10-07 Mitsubishi Electric Corporation Hand drying device
US9267736B2 (en) 2011-04-18 2016-02-23 Bradley Fixtures Corporation Hand dryer with point of ingress dependent air delay and filter sensor
CA2873015C (en) 2012-03-21 2018-11-13 Bradley Fixtures Corporation Basin and hand drying system
JP5866514B2 (en) * 2012-04-05 2016-02-17 パナソニックIpマネジメント株式会社 Hand dryer
JP6026764B2 (en) * 2012-04-16 2016-11-16 三菱電機株式会社 Hand dryer
CN104507373A (en) * 2012-06-12 2015-04-08 松下知识产权经营株式会社 Hand dryer
US10100501B2 (en) 2012-08-24 2018-10-16 Bradley Fixtures Corporation Multi-purpose hand washing station
JP6054113B2 (en) * 2012-09-19 2016-12-27 三菱電機株式会社 Hand Dryer
JP6202463B2 (en) * 2012-12-07 2017-09-27 Toto株式会社 Hand dryer
ES1106784Y (en) * 2014-02-12 2014-07-10 Ffuuss 2013 S L We dry
US10041236B2 (en) 2016-06-08 2018-08-07 Bradley Corporation Multi-function fixture for a lavatory system

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