JP2007289387A - Hand dryer - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a hand dryer with little power consumption to solve a problem of a large quantity of consumed electric power in a conventional hand dryer in which heat is accumulated by feeding electricity to a heater if the ambient temperature is lower than a preset temperature even if a hand is not inserted, and in which the electricity is fed to the heater if the ambient temperature is lower than the preset temperature even if the temperature of the heater is high because of the continuous use. <P>SOLUTION: The hand dryer has a heating means 1 for heating air and a blower means 2 for blowing heated air as hot wind inside a body of the hand dryer. When a user inserts a hand into a hand inserting part 3, the electricity is fed to the heating means 1 and the blowing means 2 to blow out hot air. When the temperature of the heating means 1 is higher than the preset temperature at the time, the calorific value of the heating means 1 is reduced. Accordingly, the hand dryer with reduced power consumption in this way can be obtained. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a hand drying apparatus for washing hands in a washroom or a toilet and drying wet hands with warm air.

  Conventionally, in this type of hand drying device, when a wet hand is inserted into the device, water droplets of the hand are blown by hot air with a high wind speed, and the moisture of the hand is evaporated and dried by the heat of the hot air. It was.

  Hereinafter, the hand dryer will be described with reference to the drawings.

  As shown in FIG. 12, the blower 103 and the heater 104 are assembled in the main body box 102 in which the open sink-like hand insertion portion 101 is formed, and the user inserts a wet hand into the hand insertion portion 101. Then, the blower 103 blows out the air heated by the heater 104 as warm air, and dries the wet hand.

In addition, it has a temperature sensor 105 that detects the ambient temperature of the hand dryer, so that when the user inserts a hand, hot air can be blown out immediately, even when not in use, When the temperature detected by the temperature sensor 105 is equal to or lower than a predetermined temperature, the heater 104 is energized (see, for example, Patent Document 1).
JP 2003-204897 A

  However, in the conventional hand drying device, when the hand is inserted, if the ambient temperature is less than the set temperature even when the hand is not inserted so that the warm air is blown from the start of blowing, the heater Was energized.

  In addition, even when the heater temperature is high due to continuous use or the like, and the heater still has a sufficient calorific value for heating, the heater is energized if the ambient temperature is lower than the set temperature.

  For these reasons, there is a problem that power consumption increases.

  The present invention solves the above-described conventional problems, and an object thereof is to provide a hand-drying device with low power consumption.

  In order to achieve the above-mentioned object, the present invention provides a heating means on an air passage having a blowing means so as to send it out as hot air, and has a heating temperature detection means for detecting the temperature of the heating means. Is configured to change the amount of heat generated by the heating means according to the temperature detected by the heating temperature detection means when the hand is inserted.

  According to the present invention, when the temperature of the heating means is high due to continuous use or the like, there is an effect that a hand dryer with low power consumption can be obtained by using this.

  In the present invention, the heating means is provided on the air passage having the air blowing means so as to send out as warm air, the heating temperature detecting means for detecting the temperature of the heating means is provided, and the user inserts a hand. And a heating device for changing the amount of heat generated by the heating means according to the temperature detected by the heating temperature detection means.

  As a result, when there is residual heat in the heating means due to continuous use or the like, the amount of heat generated by the heating means can be reduced according to the temperature of the heating means, and the power consumption is reduced.

  In addition, the heating means is provided on the air passage having the air blowing means so as to send out as warm air, and has heating temperature detecting means for detecting the temperature of the heating means, and when the user inserts the hand, You may make it the structure of the hand dryer characterized by changing the air volume which blows off from the said ventilation means according to the temperature which the heating temperature detection means detected.

  As a result, when there is residual heat in the heating means due to continuous use or the like, the air volume of the blowing means can be reduced according to the temperature of the heating means, and the power consumption is reduced.

  Also, a heating means is provided on the air passage having the air blowing means so as to send it out as warm air, and it has temperature detecting means for detecting the temperature around the inside of the main body and / or inside the main body, and the user inserts a hand. It may be configured as a hand-drying device characterized in that the amount of heat generated by the heating unit is changed depending on the temperature detected by the temperature detection unit.

  As a result, the amount of heat generated by the heating means can be reduced according to the temperature inside and outside the main body, and the power consumption is reduced.

  Also, a heating means is provided on the air passage having the air blowing means so as to send it out as warm air, and it has temperature detecting means for detecting the temperature around the inside of the main body and / or inside the main body, and the user inserts a hand. You may make it the structure of the hand-drying apparatus characterized by changing the air volume which blows off from the said ventilation means according to the temperature which the said temperature detection means detected occasionally.

  Thereby, it becomes possible to reduce the air volume of the air blowing means according to the temperature inside and outside the main body, and there is an effect that power consumption is reduced.

  Moreover, you may make it the structure of the hand-drying apparatus which has the function to select setting the emitted-heat amount of the said heating means automatically or manually.

  Thereby, there exists an effect that a user can select the setting conditions about the emitted-heat amount of a heating means according to the utilization environment of each user.

  Moreover, you may make it the structure of the hand-drying apparatus which has the function to select setting the air volume of the said ventilation means automatically or manually.

  Thereby, there exists an effect that a user can select the setting conditions about the air volume of a ventilation means according to the utilization environment of each user.

  The configuration of the hand-drying device according to claim 1 or 3, wherein the heating means has a function of selecting any one of operating conditions of operation with variable calorific value, operation with predetermined calorific value, and stop. It may be.

  Thereby, there exists an effect that a user can select the setting conditions about the emitted-heat amount of a heating means according to the utilization environment of each user.

  In addition, it has a humidity detection means for detecting humidity, and when the user is inserting a hand, the amount of heat generated by the heating means is changed according to the humidity detected by the humidity detection means. It may be configured as a device.

  As a result, when the humidity is high, by not reducing the amount of heat generated by the heating means, there is an effect that the drying ability is reduced and the time required for drying the hand is prevented from being increased.

  Moreover, it has humidity detection means for detecting humidity, and when the user is inserting a hand, the amount of air blown from the air blowing means is changed according to the humidity detected by the humidity detection means. It may be configured as a device.

  As a result, when the humidity is high, by not reducing the air volume of the blowing means, there is an effect that the drying capacity is reduced and the time required for drying the hand is prevented from being increased.

  In addition, the heating means is provided on the air passage having the air blowing means so as to send out as warm air, and has heating temperature detecting means for detecting the temperature of the heating means, and when the user inserts the hand, You may make it the structure of the hand dryer characterized by changing the emitted-heat amount of the said heating means, and the airflow which blows off from the said ventilation means according to the temperature which the heating temperature detection means detected.

  As a result, when there is residual heat in the heating unit due to continuous use or the like, the amount of heat generated by the heating unit and the amount of air blown by the blower unit can be reduced according to the temperature of the heating unit, and power consumption is reduced.

  Also, a heating means is provided on the air passage having the air blowing means so as to send it out as warm air, and it has temperature detecting means for detecting the temperature around the inside of the main body and / or inside the main body, and the user inserts a hand. It may be configured as a hand-drying device characterized in that the amount of heat generated by the heating unit and the amount of air blown from the blowing unit are changed depending on the temperature detected by the temperature detection unit.

  As a result, when there is residual heat in the heating means due to continuous use or the like, the heat generation amount of the heating means and the air volume of the blower means can be reduced according to the temperature inside and outside the main body, and the power consumption is reduced.

  In addition, when the user does not insert a hand and the temperature detected by the heating temperature detecting means is lower than a predetermined temperature, a hand drying apparatus having a function of operating the heating means may be used. .

  Thereby, there exists an effect that warm air can be blown out quickly at the time of hand dryer use.

  Further, it may be configured as a hand dryer that has hour / minute information management means for managing hour / minute information and controls the operation of the heating means based on the hour / minute information managed by the hour / minute information management means. .

  Thereby, when the frequency of use is low, there is an effect that power consumption can be reduced by stopping the heating means.

  Hereinafter, the hand-drying apparatus in the Example of this invention is demonstrated, referring drawings.

(Embodiment 1)
As shown in FIG. 1, the main body of the hand dryer includes a heating unit 1 composed of a heater and the like for heating air, and a blower unit 2 composed of a blower and the like for blowing the air heated by the heating unit 1 as warm air. ing. As the heating means 1, it is only necessary to be able to heat, for example, a heater or the like. As the air blowing means 2, it is sufficient if air can be blown, for example, a blower.

  There is a hand insertion part 3 into which the user of the hand drying device puts a wet hand on the downstream side of the blowout port of the air blowing means 2, and water droplets blown off by the hot air blown out from the air blowing means 2 below the hand insertion part 3 A water receiver 4 is provided for receiving water drops that have fallen from a wet hand.

  Further, a heating temperature detection means 5 which is made of a temperature sensor and is in contact with the heating means 1 to detect the temperature of the heating means 1 itself, an operation unit 6 which can set an arbitrary set temperature, and a temperature detected by the heating temperature detection means 5 And a control means 7 for recognizing and maintaining the set temperature set by the operation unit 6 and for controlling the amount of heat generated by the heating means 1. The heating temperature detecting means 5 only needs to be able to detect the heating temperature, and includes, for example, a temperature sensor such as a thermistor.

  Setting an arbitrary set temperature is not only the provision of the operation unit 6 for the user, but also the control means 7 is provided with a dip switch, a rotary switch, etc. It is the same meaning to store the preset temperature in a memory or the like in advance.

  When the user puts his / her hand into the hand insertion portion 3, the heating means 1 and the air blowing means 2 are energized and hot air is blown out. When the temperature detected by the heating temperature detecting means 5 is higher than the set temperature, The control means 7 reduces the amount of heat generated by the heating means 1.

  Reducing the amount of heat generation includes not only reducing the amount of electric power input to the heating means 1 but also stopping the heating means 1 by turning off the power to the heating means 1.

  The detailed operation of the hand dryer will be described with reference to FIG.

  When the user puts his / her hand into the hand insertion section 3 (step S01), the heating temperature detection means 5 detects the temperature To of the heating means 1 (step S02), and the control means 7 detects the temperature detected by the heating temperature detection means 5. To and the set temperature Ts are compared (step S03).

  When the temperature To detected by the heating temperature detecting means 5 is equal to or lower than the set temperature Ts, the control means 7 operates the heating means 1 with the rated heat value (step S04), and performs the air blowing operation for the blowing means 2 with the rated air volume (step). S05).

  When the temperature To detected by the heating temperature detecting means 5 is higher than the set temperature Ts, the control means 7 operates the heating means 1 with a calorific value smaller than the rated calorific value (step S06), energizes the air blowing means 2 and gives a rating. The air blowing operation is performed with the air volume (step S05).

  Generally, the heater has a residual heat for a while after the power is turned off, and can heat the air. For this reason, when the toilet is crowded, such as during lunch in an office building, and the hand dryer is continuously used by a plurality of users, the next user is in a state where the heating means 1 is not cooled and there is residual heat. Will be used.

  Therefore, by directly detecting the temperature of the heating unit 1 with the heating temperature detection unit 5, even if the heating unit 1 does not operate at the rated calorific value, the remaining heat of the heating unit 1 heats the air as warm air. It can be determined whether it is in a state where it can be blown out.

  Therefore, in step S06, the heating means 1 may be stopped.

  With the above-described configuration, a hand-drying device with low power consumption can be obtained by controlling energization to the heating means 1 when there is sufficient heat to blow out warm air without the user feeling a sense of cold air.

  Moreover, as shown in FIG. 3, it is good also as a structure which installed the temperature detection means 8 which consists of a temperature sensor etc. and detects the temperature of the hand dryer apparatus main body periphery. The temperature detection means 8 only needs to be able to detect the temperature. For example, there is a temperature sensor such as a thermistor.

  In the present embodiment, the configuration in which the amount of heat generated by the heating unit 1 is controlled by comparing the temperature detected by the heating temperature detection unit 5 with the set temperature has been described. However, the temperature of the heating unit 1 is indirectly controlled by the temperature detection unit 8. The same effect can also be obtained by detecting the above.

  Further, when the heat generation amount of the heating unit 1 is controlled by comparing the temperature around the hand dryer main body with the set temperature, for example, when the temperature is high in summer, the temperature is adjusted to the temperature around the hand dryer main body. By reducing the amount of heat generated by the heating means 1, the power consumption can be reduced.

  Note that the temperature detected by the temperature detecting means 8 is a value used for comparison with the set temperature, and the location to be detected is not limited to the vicinity of the hand dryer main body, and the temperature around the hand dryer main body can be estimated. For example, the same effect can be obtained even at the temperature inside the main body of the hand dryer.

  When a plurality of temperature sensors are provided, such as the heating temperature detection means 5 and the temperature detection means 8, the temperature detected by one of the temperature sensors is used for control for determining the amount of heat generated by the heating means 1. However, even if the temperature sensor that detected the temperature used for control cannot detect the temperature due to a failure, etc., the control is continued by using the temperature detected by the other temperature sensor instead. The hand dryer can be operated.

(Embodiment 2)
The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the hand dryer of Example 2, a function capable of setting the operation mode of the heating means 1 is added. When the hand dryer is always stopped (hereinafter referred to as the OFF mode), it is operated at the rated heat generation amount when the hand dryer is used. There are three modes of operation (hereinafter referred to as ON mode), in which the heat generation amount is changed according to the temperature detected by the heating temperature detection means 5 when the hand dryer is used (hereinafter referred to as AUTO mode).

  The detailed operation of the hand dryer will be described with reference to FIG.

  The operation mode of the heating means 1 is detected (step S07).

  When the operation mode is the OFF mode, the control means 7 stops the energization to the heating means 1 (step S08), and the blowing means 2 is blown with the rated air volume (step S05).

  When the operation mode is the ON mode, the control means 7 operates the heating means 1 with the rated heat generation amount (step S04), and the air blowing means 2 is operated with the rated air volume (step S05).

  When the operation mode is the AUTO mode, the operation is the same as that of the hand dryer described in the first embodiment.

  With the above-described configuration, the user can select an operation mode of the heating unit 1 that is cold air blowing, hot air blowing of a rated heat amount, or energy-saving hot air blowing according to the situation of each user.

(Embodiment 3)
The same parts as those in Example 1 or 2 are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the hand dryer according to the third embodiment, a function capable of setting the operation mode of the heating means 1 different from that of the second embodiment is added.

  The operation mode of the heating means 1 is two modes in which the heat generation amount of the heating means 1 is set by automatic control according to the temperature detected by the heating temperature detection means 5 or manually set.

  The detailed operation of the hand dryer will be described with reference to FIG.

  The operation mode of the heating means 1 is detected (step S09).

  When the operation mode is set by automatic control, the operation is the same as the AUTO mode described in the second embodiment.

  When the operation mode is set manually, the energization permission state of the heating means 1 is confirmed (step S10).

  When the energization switch etc. which can turn on and off the energization to the heating means 1 are provided, and the energization control to the heating means 1 cannot be performed by the control means 7 such as being turned off, the control means 7 turns the heating means 1 off. While stopped (step S08), the blowing means 2 is blown with the rated air volume (step S05).

  An energization switch that can turn on and off energization of the heating means 1 is provided. The energization of the heating means 1 is performed by the control means 7 such that the energization switch is turned on or the energization switch is not provided and can be energized at all times. When control is possible, the control means 7 operates the heating means 1 with the rated heat generation amount (step S04), and the air blowing means 2 is operated with the rated air volume (step S05).

(Embodiment 4)
The same parts as those in any of Examples 1 to 3 are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the hand dryer described in the fourth embodiment, the number of rotations of the blower 2 is controlled according to the temperature detected by the heating temperature detector 5.

  The detailed operation of the hand dryer will be described with reference to FIG.

  When the user puts his / her hand into the hand insertion section 3 (step S01), the heating temperature detection means 5 detects the temperature To of the heating means 1 (step S02), and the control means 7 detects the temperature detected by the heating temperature detection means 5. To and the set temperature Ts are compared (step S03).

  When the temperature To detected by the heating temperature detecting means 5 is equal to or lower than the set temperature Ts, the control means 7 operates the heating means 1 with the rated heat value (step S04), and performs the air blowing operation for the blowing means 2 with the rated air volume (step). S05).

  When the temperature To detected by the heating temperature detection means 5 is higher than the set temperature Ts, the control means 7 operates the heating means 1 with the rated heat value (step S04), and reduces the rotational speed of the blower means 2 so that it exceeds the rated air volume. The air blowing operation is performed with a small air volume (step S11).

  That the temperature detected by the heating temperature detecting means 5 is higher than the set temperature is higher than the hot air temperature set by the user or the facility manager who manages the hand drying device, feeling that it is necessary to dry the hands. In other words, since the drying capacity is higher than the user or facility manager feels necessary, the drying capacity can be reduced by reducing the air volume.

  Further, since the amount of heat generated by the heating means 1 is not changed, the hot air temperature is increased by reducing the air volume.

  With the configuration described above, a hand dryer with low power consumption can be obtained by reducing the power consumption of the air blowing means 2 without causing the user to feel a cold wind.

  Moreover, as shown in FIG. 3, it is good also as a structure which installed the temperature detection means 8 which consists of a temperature sensor etc. and detects the temperature of the hand dryer apparatus main body periphery.

  In the present embodiment, the configuration in which the rotation speed of the blower 2 is controlled by comparing the temperature detected by the heating temperature detector 5 and the set temperature has been described. However, the temperature of the heater 1 is indirectly controlled by the temperature detector 8. The same effect can also be obtained by detecting the above.

  Further, when the rotation speed of the blower unit 2 is controlled by comparing the temperature around the hand dryer main body with the set temperature, for example, when the air temperature is high in summer, for example, the temperature is adjusted to the temperature around the hand dryer main body. Power consumption can be reduced by reducing the rotation speed of the air blowing means 2.

  When a plurality of temperature sensors are provided, such as the heating temperature detecting means 5 and the temperature detecting means 8, the temperature detected by one of the temperature sensors is used for control for determining the rotational speed of the air blowing means 2. However, even if the temperature sensor that detected the temperature used for control cannot detect the temperature due to a failure, etc., the control is continued by using the temperature detected by the other temperature sensor instead. The hand dryer can be operated.

(Embodiment 5)
The same parts as those in any of Examples 1 to 4 are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the hand dryer of Example 5, the function which can set the operation mode of the ventilation means 2 is added.

  The operation mode of the blower 2 is a two mode in which the air volume determined by the rotation speed of the blower 2 is set by automatic control or manually by the temperature detected by the heating temperature detector 5.

  The detailed operation of the hand dryer will be described with reference to FIG.

  When the operation mode is set by automatic control, the operation is the same as that of the hand dryer described in the fourth embodiment.

  When the operation mode is set manually, the control unit 7 operates the heating unit 1 with the rated heat generation amount (step S04), and the blowing unit 2 performs the blowing operation with the rated air volume (step S05).

  With the above-described configuration, the user can select the operation mode of the air blowing means 2 that is rated air volume ventilation or energy saving air volume ventilation according to the situation of each user.

(Embodiment 6)
The same parts as those in any of Examples 1 to 5 are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the hand dryer of Example 6, when the temperature detected by the heater temperature sensor is higher than the set temperature, the amount of heat generated by the heating unit 1 described in Example 1 is reduced and the air volume described in Example 4 is reduced. It is configured to perform both reductions.

  The detailed operation of the hand dryer will be described with reference to FIG.

  When the temperature detected by the heating temperature detecting means 5 is equal to or lower than the set temperature, the control means 7 operates the heating means 1 with the rated heat value (step S04), and the blowing means 2 is blown with the rated air volume (step S05). .

  When the temperature detected by the heating temperature detecting means 5 is higher than the set temperature, the control means 7 operates the heating means 1 with a calorific value smaller than the rated calorific value (step S05), and reduces the rotational speed of the blower means 2. The blowing operation is performed with an air volume smaller than the rated air volume (step S11).

(Embodiment 7)
The same parts as those in any of Examples 1 to 6 are denoted by the same reference numerals, and detailed description thereof is omitted.

  As shown in FIG. 9, a humidity detecting means 9 comprising a humidity sensor or the like for detecting humidity, an operation unit 6 capable of setting an arbitrary set temperature and set humidity, and a temperature and humidity detecting means detected by the heating temperature detecting means 5 9 includes a control unit 7 that recognizes the detected humidity 9 and can maintain the set temperature and the set humidity set by the operation unit 6 and controls the amount of heat generated by the heating unit 1. The humidity detecting means 9 only needs to be able to detect humidity. For example, there is a humidity sensor such as a polymer humidity sensor.

  Setting an arbitrary set humidity means not only providing the operation unit 6 for setting the set humidity on the main body of the hand dryer for the user, but also providing the control means 7 with a dip switch or a rotary switch. It is also the same meaning that the setting temperature is stored in advance in a setting by these switches or in a nonvolatile memory or the like.

  When the user puts his / her hand into the hand insertion portion 3, the heating means 1 and the air blowing means 2 are energized and hot air is blown out. When the temperature detected by the heating temperature detecting means 5 is higher than the set temperature, The control means 7 reduces the amount of heat generated by the heating means 1.

  However, generally, even if the air temperature is high, drying becomes difficult when the humidity is high. Therefore, even when the temperature detected by the heating temperature detection means 5 is higher than the set temperature, the humidity detected by the humidity detection means 9 is the set humidity. If it is higher, the control means 7 does not reduce the amount of heat generated by the heating means 1.

  The detailed operation of the hand dryer will be described with reference to FIG.

  When the user puts the hand into the hand insertion section 3 (step S01), the heating temperature detection means 5 detects the temperature To (step S02), the humidity detection means 9 detects the humidity Ho (step S12), and the control means. 7 compares the temperature To detected by the heating temperature detecting means 5 with the set temperature Ts (step S03).

  When the temperature To detected by the heating temperature detecting means 5 is equal to or lower than the set temperature Ts, the control means 7 operates the heating means 1 with the rated heat value (step S04), and performs the air blowing operation for the blowing means 2 with the rated air volume (step). S05).

  When the temperature To detected by the heating temperature detection means 5 is higher than the set temperature Ts, the control means 7 compares the humidity Ho detected by the humidity detection means 9 with the set humidity Hs (step S13).

  When the humidity Ho detected by the humidity detecting means 9 is equal to or lower than the set humidity Hs, the control means 7 operates the heating means 1 with a calorific value smaller than the rated calorific value (step S06), and blows the air blowing means 2 with the rated air volume. Drive (step S05).

  When the humidity Ho detected by the humidity detection means 9 is higher than the set humidity Hs, the control means 7 operates the heating means 1 with the rated heat generation amount (step S04), and the blowing means 2 is blown with the rated air volume (step S05). ).

  With the above configuration, even if the temperature detected by the heating temperature detecting means 5 is higher than the set temperature, when the humidity detected by the humidity detecting means 9 is higher than the set humidity, the heating value of the heating means 1 is maintained without being reduced. By doing so, it is possible to obtain a hand-drying device with low power consumption while suppressing the user's discomfort due to the reduced drying capacity and longer drying time.

(Embodiment 8)
The same parts as those in any of the first to seventh embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

  In the hand-drying apparatus described in Example 8, when the temperature detected by the heating temperature detection means 5 is higher than the set temperature, the air volume is reduced by, for example, reducing the rotational speed of the blower means 2. It is.

  However, even if the air temperature is high, it becomes difficult to dry when the humidity is high. Therefore, when the humidity detected by the humidity detecting means 9 is higher than the set humidity, the control means 7 does not reduce the air volume.

  As shown in FIG. 11, when the user puts his / her hand into the hand insertion section 3 (step S01), the heating temperature detecting means 5 detects the temperature To (step S02), and the humidity detecting means 9 detects the humidity Ho. (Step S12), the control means 7 compares the temperature To detected by the heating temperature detection means 5 with the set temperature Ts (Step S03).

  When the temperature To detected by the heating temperature detecting means 5 is equal to or lower than the set temperature Ts, the control means 7 operates the heating means 1 with the rated heat value (step S04), and performs the air blowing operation for the blowing means 2 with the rated air volume (step). S05).

  When the temperature To detected by the heating temperature detection means 5 is higher than the set temperature Ts, the control means 7 compares the humidity Ho detected by the humidity detection means 9 with the set humidity Hs (step S13).

  When the humidity Ho detected by the humidity detection means 9 is equal to or lower than the set humidity Hs, the control means 7 operates the heating means 1 with the rated heat generation amount (step S04), and the blowing means 2 operates with the air volume smaller than the rated air volume. (Step S11).

  When the humidity Ho detected by the humidity detection means 9 is higher than the set humidity Hs, the control means 7 operates the heating means 1 with the rated heat generation amount (step S04), and the blowing means 2 is blown with the rated air volume (step S05). ).

  With the above configuration, even if the temperature detected by the heating temperature detecting means 5 is higher than the set temperature, when the humidity detected by the humidity detecting means 9 is higher than the set humidity, the air volume is not reduced and is maintained as it is. It is possible to obtain a hand-drying device with low power consumption while suppressing discomfort of the user due to the reduced capability and longer drying time.

  In addition, it is good also as a structure which performs both reduction of the emitted-heat amount of the heating means 1, and reduction of an air volume, when the temperature detected by the heating temperature detection means 5 is higher than preset temperature.

  However, even if the air temperature is high, it becomes difficult to dry when the humidity is high. Therefore, when the humidity detected by the humidity detecting means 9 is higher than the set humidity, the control means 7 generates the heat generated by the heating means 1 and the air volume of the blowing means 2. Will not be reduced.

  Note that the humidity detected by the humidity detecting means 9 is a value used for comparison with the set humidity, and the detected location is not limited to the vicinity of the hand dryer main body, and the humidity around the hand dryer main body can be estimated. For example, the same effect can be obtained even in the humidity inside the hand dryer main body.

(Embodiment 9)
The same parts as those in any of Examples 1 to 8 are denoted by the same reference numerals, and detailed description thereof is omitted.

  A case where a PTC heater is used as the heating means 1 will be described.

  In general, the PTC heater has a characteristic that power consumption is small unless ventilation is performed on the ventilation surface. For this reason, when the temperature detected by the heating temperature detecting means 5 is lower than a predetermined temperature, in order to alleviate the user's feeling of cold air, when the hand dryer is not used (that is, the user's hand) Even when the air is not put in the drying apparatus and there is no air blowing by the air blowing means 2, the power is turned on to bring the PTC heater into preheating.

  With the above configuration, it is possible to obtain a hand-drying device that can quickly blow out hot air when used with low power consumption.

  In addition, since the PTC heater is energized in advance when not in use, the frequency of inrush power at the start of use can be suppressed.

  In addition, by providing a timer monitoring function or an operation schedule management function in the control means 7 as the hour / minute information management means, in the hand dryer installed in the office building etc., users such as midnight and holidays are extremely Do not preheat the PTC heater during a short period of time.

  With the above configuration, a hand dryer with low power consumption can be obtained by not preheating the heater in a time zone with a low usage frequency according to individual usage conditions. It is also possible to suppress the occurrence frequency of the inrush current that occurs when the heater energization is started.

  It uses the remaining heat of the heating means to reduce power consumption, and can be used for devices that blow out warm air other than the hand dryer.

Sectional drawing which shows the structure of the hand-drying apparatus of Example 1 of this invention. The flowchart which shows operation | movement of the hand-drying apparatus of Example 1 of this invention. Sectional drawing which shows the structure of the hand-drying apparatus of Example 1 of this invention. The flowchart which shows operation | movement of the hand-drying apparatus of Example 2 of this invention. The flowchart which shows operation | movement of the hand-drying apparatus of Example 3 of this invention. The flowchart which shows operation | movement of the hand-drying apparatus of Example 4 of this invention. The flowchart which shows operation | movement of the hand-drying apparatus of Example 5 of this invention. The flowchart which shows operation | movement of the hand dryer of Example 6 of this invention. Sectional drawing which shows the structure of the hand-drying apparatus of Example 7 of this invention. The flowchart which shows operation | movement of the hand-drying apparatus of Example 7 of this invention. The flowchart which shows operation | movement of the hand-drying apparatus of Example 8 of this invention. Sectional drawing which shows the structure of the conventional hand dryer

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Heating means 2 Air blowing means 5 Heating temperature detection means 8 Temperature detection means 9 Humidity detection means

Claims (13)

A heating means is provided on the air passage having the air blowing means so as to send out as warm air, and has a heating temperature detecting means for detecting the temperature of the heating means, and the heating temperature when the user inserts a hand. A hand-drying device characterized in that the amount of heat generated by the heating means is changed according to the temperature detected by the detection means. A heating means is provided on the air passage having the air blowing means so as to send out as warm air, and has a heating temperature detecting means for detecting the temperature of the heating means, and the heating temperature when the user inserts a hand. A hand-drying device characterized in that the amount of air blown from the air blowing means is changed in accordance with the temperature detected by the detecting means. The heating means is provided on the air passage having the air blowing means so as to send it out as hot air, and has temperature detecting means for detecting the temperature around the inside of the main body and / or the inside of the main body, and when the user inserts the hand A hand-drying device characterized in that the heating value of the heating means is changed in accordance with the temperature detected by the temperature detection means. A heating means is provided on the air passage having the air blowing means so as to send it out as hot air, and has a temperature detecting means for detecting the temperature around the inside of the main body and / or the inside of the main body, and when the user is inserting a hand, A hand-drying device characterized in that the amount of air blown from the air blowing means is changed in accordance with the temperature detected by the temperature detecting means. The hand-drying device according to claim 1 or 3, wherein the hand-drying device has a function of selecting automatic or manual setting of the heat generation amount of the heating means. The hand dryer according to claim 2 or 4, having a function of selecting to set the air volume of the air blowing means automatically or manually. The hand-drying device according to claim 1 or 3, wherein the heating means has a function of selecting one of operating conditions in which the calorific value is variable, an operation based on a predetermined calorific value, and a stop. 2. A humidity detecting means for detecting humidity, wherein the amount of heat generated by the heating means is changed according to the humidity detected by the humidity detecting means when a user inserts a hand. 3. The hand drying apparatus according to 3. The apparatus according to claim 2, further comprising a humidity detecting unit that detects humidity, wherein the amount of air blown from the blowing unit is changed according to the humidity detected by the humidity detecting unit when a user inserts a hand. 4. The hand drying apparatus according to 4. A heating means is provided on the air passage having the air blowing means so as to send out as warm air, and has a heating temperature detecting means for detecting the temperature of the heating means, and the heating temperature when the user inserts a hand. A hand-drying device characterized in that the amount of heat generated by the heating unit and the amount of air blown from the blowing unit are changed in accordance with the temperature detected by the detection unit. A heating means is provided on the air passage having the air blowing means so as to send it out as hot air, and has a temperature detecting means for detecting the temperature around the inside of the main body and / or the inside of the main body, and when the user is inserting a hand, A hand-drying device characterized in that the amount of heat generated by the heating means and the amount of air blown from the blowing means are changed in accordance with the temperature detected by the temperature detecting means. Claims 1-4, 10, or 10 having a function of operating the heating means when the user does not insert a hand and the temperature detected by the heating temperature detection means is lower than a predetermined temperature. Item 12. The hand drying device according to any one of Items 11. 13. The hand dryer according to claim 12, further comprising hour / minute information management means for managing hour / minute information, wherein the operation of the heating means is controlled based on the hour / minute information managed by the hour / minute information management means.

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