JP2009183588A - Bathroom drying equipment - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To estimate the drying state of clothes with high precision without being affected by the changes in environment such as climate and weather and the size of a room space or the difference in the material that forms the room interior, prevent undrying operation or excessive drying operation, and appropriately conduct drying operation. <P>SOLUTION: A bathroom drying equipment is provided with a temperature detecting means 13 that detects without contact the temperature inside a bathroom and clothes and identifies the presence of clothes by the difference in temperature of the interior of the bathroom and the clothes, calculates the degree of dryness of clothes by the shift of the difference in temperature in case the presence of clothes is detected, and controls a ventilation fan 5, circulating fan 8, heating means 9, and wind direction changing means 10 to automatically dry the clothes. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention mainly relates to heating and ventilation in a bathroom in a general household, and a bathroom ventilation dryer for drying clothes that are dried indoors or indoors.

  2. Description of the Related Art In recent years, bathroom ventilation dryers that can be attached to the ceiling of a bathroom to heat or ventilate the bathroom and dry clothes after washing suspended in the bathroom have become widespread.

Conventionally, the clothes drying control system of this type of bathroom ventilation drying device has a configuration in which the circulation air heated by circulating the air in the bathroom is blown and dried on the clothes, and the humid air in the bathroom is ventilated and discharged. In order to detect the relative humidity of the air in the bathroom, a humidity sensor is provided in the vicinity of the circulation inlet of the bathroom air, and it is judged whether the clothing has dried by the change in the relative humidity of the bathroom air and automatically stops. The thing is known (for example, patent document 1).
JP 2002-221388 A

  In such a conventional bathroom drying apparatus, the bathroom is dried by simultaneously performing a ventilation operation for discharging the bathroom air to the outdoors and a heating operation for circulating the bathroom air while warming, and the clothes are dried with the degree of drying of the bathroom air. I guess the dry state of the air, but by ventilation operation, air enters from the room other than the bathroom from the bathroom door, and the drying time is greatly affected by the temperature and humidity state of the inflow air, For example, when the humidity of the inflowing air is high, there is a problem that the heater continues to be energized even though the clothes are dry and consumes more power than necessary.

  Also, depending on how the clothes in the bathroom are hung and where they are hung, there are sparse locations where the blast air does not reach the clothes, for example, if the clothes are overlapped and arranged on the bathroom wall. As a result, there is a problem that uneven drying tends to occur.

  The present invention solves such a conventional problem, flexibly responds to environmental changes such as climate and weather, and is not affected by the size of the indoor space and the difference in the material forming the room. An object of the present invention is to provide a bathroom ventilation drying apparatus that can accurately estimate the dry state and dry clothes with a minimum amount of power consumption.

  Moreover, it aims at providing the bathroom ventilation drying apparatus which can perform optimal clothing drying, reducing the drying nonuniformity of clothing.

  In order to solve the above problems, a bathroom ventilation drying apparatus of the present invention includes a ventilation means for discharging the air in the bathroom to the outdoors, a circulation means for circulating the air in the bathroom, a heating means for heating the circulation air, and the bathroom. A temperature detecting means for adjusting a blowing angle of circulating air to be blown into the inside, and a temperature detecting means in which a plurality of temperature detecting elements for measuring the temperature distribution of the temperature in the bathroom or the temperature of the clothes arranged in the bathroom are arranged in an array. A bathroom ventilation drying device comprising: a temperature difference between a bathroom temperature detected by the temperature detection means and a clothing temperature; and the presence of clothing is detected when the presence of clothing is detected. The degree of drying of the clothes is calculated from the transition, and the ventilation means, the circulation means, the heating means, and the wind direction varying means are controlled to automatically dry the clothes.

  The temperature detecting means is configured to detect infrared rays.

  The temperature detecting means is driven by a motor that can control the rotation angle, the rotation speed, and the rotation direction.

  In addition, when the temperature difference between the bathroom temperature detected by the temperature detection means and the clothing temperature is equal to or less than a predetermined value, it is determined that the clothing is in a dry state, and the heating means is controlled to stop. It is.

  In addition, when the temperature difference between the bathroom temperature detected by the temperature detecting means and the clothing temperature becomes a predetermined value or less, it is determined that the clothing is in a dry state, and the heating means is controlled to stop and for a predetermined time. It is configured to drive either the ventilation means or the circulation means.

  In addition, when the clothing temperature detected by the temperature detection means exceeds the bathroom temperature and becomes a predetermined value or more, it is determined as an abnormal state, and the ventilation means, the circulation means, and the heating means are controlled to stop. It is what.

  In addition, the main body is installed on the ceiling, the temperature detection means is in the range of 5 to 45 degrees below the main body installation surface, and the bathroom temperature is calculated from the temperature in the washing area.

  Further, the main body is installed on the wall surface, and the temperature detecting means is configured to calculate the temperature in the bathroom from the temperature in the range of 5 to 45 degrees above the main body installation surface.

  The temperature detection means is driven by a motor capable of controlling the rotation angle, rotation speed and rotation direction, and specifies the area where the clothes exist from the temperature difference between the bathroom temperature and the clothing temperature detected by the temperature detection means. The air direction varying means is controlled so as to blow the circulating air only in the area where the clothes are present.

  Moreover, it is set as the structure provided with the alerting | reporting means which alert | reports completion | finish of drying.

  According to the present invention, the ventilation means for discharging the air in the bathroom to the outdoors, the circulation means for circulating the air in the bathroom, the heating means for heating the circulating air, and the blowing angle of the circulating air blown into the bathroom. A bathroom ventilating and drying apparatus comprising: a wind direction varying means for adjusting; and a temperature detecting means in which a plurality of temperature detecting elements for measuring a temperature distribution of a bathroom temperature or a clothing temperature arranged in the bathroom are arranged in an array. Determining the presence of clothing from the temperature difference between the temperature in the bathroom and the clothing temperature detected by the temperature detection means, and calculating the degree of drying of the clothing from the transition of the temperature difference when the presence of clothing is detected, Since the ventilation means, the circulation means, the heating means and the wind direction varying means are controlled so as to automatically dry the clothes, the surface temperature of the clothes to be dried is directly detected to judge the degree of drying. It can respond flexibly to changes in the environment such as climate, weather, etc., accurately estimate the dryness of clothing without being affected by the size of the indoor space and the material forming the room, and consume the minimum necessary amount It is possible to provide a bathroom ventilation drying apparatus that can prevent excessive drying with electric power.

  Further, according to the present invention, since the temperature detecting means is configured to detect infrared rays, the surface temperature of the clothes, which is the object to be dried, is directly estimated rather than estimating the degree of drying of the clothes from the transition of the temperature in the bathroom. Therefore, it is possible to detect the degree of drying accurately, and it is possible to provide a bathroom ventilation drying apparatus having an effect of preventing excessive drying with a minimum necessary power consumption.

  In addition, according to the present invention, the temperature detection means is driven by a motor that can control the rotation angle, rotation speed, and rotation direction, so that the temperature detection area can be freely changed, and the temperature detection means is arranged over a wide range. It is possible to provide an effective bathroom ventilation drying apparatus capable of detecting in detail the temperature distribution of clothes that are dry matter.

  Further, according to the present invention, when the temperature difference between the bathroom temperature detected by the temperature detecting means and the clothing temperature becomes a predetermined value or less, it is determined that the clothing is in a dry state, and the stop control of the heating means is performed. The bathroom has an effect that can prevent overdrying with the minimum necessary power consumption, not only the temperature conditions in the bathroom but also the transition of the surface temperature of clothing that is to be dried. A ventilation drying apparatus can be provided.

  Further, according to the present invention, when the temperature difference between the bathroom temperature detected by the temperature detecting means and the clothing temperature becomes a predetermined value or less, it is determined that the clothing is in a dry state, and the stop control of the heating means is performed. Since it is configured to drive either the ventilation means or the circulation means for a predetermined time, it prevents excessive drying with the minimum necessary power consumption and discharges hot air in the bathroom after the drying is completed. The bathroom ventilation drying apparatus which can prevent the discomfort due to hot air when bathing immediately thereafter can be provided.

  Further, according to the present invention, when the clothing temperature detected by the temperature detection unit exceeds the bathroom temperature and exceeds a predetermined value, it is determined that the state is abnormal, and the ventilation unit, the circulation unit, and the heating unit are determined. Because it is configured to stop and control the means, the clothing that is to be dried is mistakenly placed near the body of the bathroom ventilation dryer, and when the clothing becomes hotter than necessary due to hot air during drying, the temperature is detected immediately. It is possible to provide a bathroom ventilation drying apparatus that can stop the operation of the product and can dry the clothes without being exposed to an unnecessarily high temperature.

  Further, according to the present invention, the main body is installed on the ceiling, the temperature detection means is in the range of 5 to 45 degrees below the main body installation surface, and the temperature in the bathroom is calculated from the temperature in the washing area. Therefore, in the ceiling-installed bathroom ventilation drying device, the temperature of the upper area of the garment hanging appliance, that is, the area that is not mistakenly recognized as the clothing temperature can be recognized as the bathroom temperature, and is the object to be dried. An accurate relative comparison with the clothing temperature is possible, and a bathroom ventilation drying apparatus that can prevent erroneous recognition of the degree of drying can be provided.

  Further, according to the present invention, the main body is installed on the wall surface, and the temperature detection means is configured to calculate the temperature in the bathroom from the temperature in the range of 5 to 45 degrees above the main body installation surface. In the bathroom ventilation drying device, by accurately recognizing the temperature of the upper area of the clothes and clothing hanging device, that is, the area not misrecognized as the clothing temperature as the bathroom temperature, an accurate relative comparison with the clothing temperature becomes possible. It is possible to provide a bathroom ventilation drying apparatus that can prevent erroneous recognition of the degree of drying.

  Further, according to the present invention, the temperature detecting means is driven by a motor capable of controlling the rotation angle, the rotation speed and the rotation direction, and the temperature of the clothing is determined from the temperature difference between the bathroom temperature detected by the temperature detecting means and the clothing temperature. Since the area where the clothes are present is specified and the wind direction varying means is controlled so as to blow the circulating air limited to the area where the clothes exist, the clothes can be worn even when the clothes to be dried are placed over a wide area. A bathroom ventilation drying device that can reduce drying time by blowing air only in the existing area, reducing drying unevenness of clothing and preventing excessive drying with the minimum necessary power consumption Can be provided.

  In addition, according to the present invention, since the notification means for notifying the end of drying is provided, the user can easily recognize the end of drying, and the effect of preventing the clothes from being left for a long time after the end of drying can be obtained. A bathroom ventilating and drying device can be provided.

  The invention according to claim 1 of the present invention is a ventilation means for discharging the air in the bathroom to the outdoors, a circulation means for circulating the air in the bathroom, a heating means for heating the circulating air, and a circulation for blowing air into the bathroom. A bathroom comprising air direction variable means for adjusting the air blowing angle, and temperature detection means in which a plurality of temperature detection elements for measuring temperature distribution in the bathroom temperature or clothing temperature arranged in the bathroom are arranged in an array. A ventilation drying device that determines the presence of clothing from the temperature difference between the bathroom temperature detected by the temperature detection means and the clothing temperature, and when the presence of clothing is detected, the clothing is dried from the transition of the temperature difference. The ventilation means, the circulation means, the heating means, and the wind direction varying means are controlled to calculate the degree and automatically dry the clothes, and directly detect the surface temperature of the clothes to be dried. Dry The degree of dryness of clothes can be accurately estimated without being affected by the size of the indoor space and the material that forms the room. It has the effect of preventing excessive drying with minimal power consumption.

  In addition, since the temperature detecting means is configured to detect infrared rays, it is possible to directly detect the surface temperature of the clothes to be dried, rather than estimating the degree of drying of the clothes from the transition of the temperature in the bathroom, It is possible to accurately determine the degree of drying, and it is possible to prevent excessive drying with the minimum necessary power consumption.

  In addition, since the temperature detection means is driven by a motor that can control the rotation angle, rotation speed, and rotation direction, the temperature detection area can be freely changed, and the clothes to be dried that are arranged over a wide range This has the effect that the temperature distribution can be detected in detail.

  In addition, when the temperature difference between the bathroom temperature detected by the temperature detection means and the clothing temperature becomes a predetermined value or less, it is determined that the clothing is in a dry state and the heating means is controlled to stop. The degree of drying can be determined not only by the temperature conditions in the bathroom but also by the transition of the surface temperature of the clothing that is to be dried, and it has the effect of preventing excessive drying with the minimum necessary power consumption.

  In addition, when the temperature difference between the bathroom temperature detected by the temperature detecting means and the clothing temperature becomes a predetermined value or less, it is determined that the clothing is in a dry state, and the heating means is controlled to stop and for a predetermined time. Since either the ventilation means or the circulation means is driven, it is possible to discharge hot air in the bathroom after completion of drying, and to prevent the discomfort caused by the hot air when entering the room afterwards.

  In addition, when the clothing temperature detected by the temperature detection means exceeds the bathroom temperature and becomes a predetermined value or more, it is determined as an abnormal state, and the ventilation means, the circulation means, and the heating means are controlled to stop. Therefore, the clothes that are to be dried are accidentally placed near the bathroom ventilation dryer body, and when the clothes become hotter than necessary due to the high temperature hot air during drying, the product operation can be stopped immediately by detecting the high temperature, It has the effect | action that it can dry without exposing clothing to high temperature more than necessary.

  In addition, since the main body is installed on the ceiling, the temperature detection means is in the range of 5 to 45 degrees below the main body installation surface, and the bathroom temperature is calculated from the temperature in the washing area. In the bathroom ventilation drying device, the temperature of the upper area of the garment hanging appliance, that is, the area that is not mistakenly recognized as the clothing temperature can be recognized as the bathroom temperature, and an accurate relative comparison with the clothing temperature becomes possible. It has the effect of preventing misrecognition of the degree of drying.

  In addition, since the main body is installed on the wall surface and the temperature detection means is configured to calculate the bathroom temperature from a temperature in the range of 5 to 45 degrees above the main body installation surface, in the side wall surface installation type bathroom ventilation drying device By recognizing the temperature in the upper area of the clothes hanger, that is, the area that is not mistakenly recognized as the garment temperature, the temperature in the bathroom can be accurately compared with the garment temperature to be dried. This has the effect of preventing misrecognition of the degree.

  The temperature detection means is driven by a motor capable of controlling the rotation angle, rotation speed, and rotation direction, and the temperature detection means identifies the area where the clothes exist from the temperature difference between the bathroom temperature and the clothing temperature, Since the wind direction variable means is controlled so as to blow the circulating air only in the existing area, even if the clothes to be dried are arranged over a wide area, the air is limited to the area where the clothes exist. Thus, the drying time can be shortened, and the drying unevenness of the clothes can be reduced and the excessive drying can be prevented with the minimum necessary power consumption.

  Moreover, since it was set as the structure provided with the alerting | reporting means which alert | reports completion | finish of drying, since a user can recognize the completion | finish of drying easily, it has the effect | action which can prevent leaving clothes for a long time after completion | finish of drying.

  Hereinafter, embodiments of the present invention will be described with reference to FIGS.

(Embodiment 1)
As shown in FIG. 1, the main body of a ceiling-mounted bathroom ventilation drying apparatus has an opening on the ceiling surface of the bathroom 1, and a bathroom ventilation drying apparatus 2 is disposed on the back surface of the ceiling. A ventilation fan 5 as a ventilation means for forcibly exhausting the air in the bathroom from the ventilation suction port 3 communicating with 1 to the ventilation discharge port 4 communicating with the outside, and circulation for communicating the bathroom air with the bathroom 1 A circulation fan 8 that circulates from the suction inlet 6 to the circulation discharge port 7 that communicates with the bathroom 1, and the circulation intake port 6 and the circulation discharge port 7 to heat the circulation air. The heating means 9 provided in the circulating air ventilation path connected in the bathroom ventilation drying apparatus 2 is comprised. As the heating means 9, a halogen heater, a carbon heater, a sheathed heater, a PTC heater or the like is used.

  In the vicinity of the circulation outlet 7, there is provided a wind direction varying means 10 for adjusting a blowing angle when the circulating air is blown into the bathroom 1, and this wind direction varying means 10 is a motor 11, for example, a rotation angle. , A stepping motor that freely controls the rotation speed, rotation direction, and the like, and a wind direction louver 17 that is molded from a metal or a resin molded product that can withstand the heat-resistant temperature of hot air blown into the bathroom 1.

  Moreover, the temperature detection means 13 which can measure the temperature of the remote location, more specifically, the temperature of the bathroom 1 and the temperature of the clothes 12 which are the objects to be dried suspended in the hanging pipe in the bathroom 1 in the bathroom ventilation. By arranging it integrally with the wind direction varying means 10 so that the temperature on the bathroom 1 side of the drying device 2 can be measured, it is possible to detect the temperature in a wide-angle area that can include a bathtub and a washing place.

  As temperature detection means 13, when receiving infrared rays having a wavelength of 0.78 to 1000 μm emitted from an object having a temperature of absolute zero or higher, an absolute amount of temperature can be obtained by generating a thermoelectromotive force according to the energy amount. A thermopile.

  FIG. 2 shows a view of the bathroom 1 as viewed from above, and the viewing angle of the temperature detecting means 13 will be described using this figure.

  The temperature detecting means 13 is configured by arranging eight temperature detecting elements 13a to 13h in a horizontal horizontal array. Each of the temperature detection elements 13a to 13h has a cone-shaped temperature detection viewing angle of about 5 °, and is arranged so that the viewing angles do not overlap each other, and the detection temperature can be calculated for each viewing angle. . In other words, the position of the clothing 12 that is the object to be dried suspended on a suspension pipe or the like in the bathroom 1, for example, is solidified near the center or is uniformly suspended throughout the clothing 12. Position information can be detected. Although the viewing angle is described here as about 5 °, the present invention is not limited to this. In addition, the eight temperature detection elements are arranged in a horizontal row in the horizontal direction here, but the arrangement number is not limited, and any configuration can be used as long as it can be detected in a wide range. It should be noted here that when the temperature detecting means 13 is provided in the wind direction varying means 10, the wind direction varying means is provided due to the characteristics of the temperature detecting means 13 for detecting infrared rays emitted from an object having a temperature of absolute zero or higher. Care should also be taken to arrange the temperature of the 10 itself so that it is not mistakenly detected.

  FIG. 3 shows a control block diagram for realizing the present embodiment. In the bathroom ventilation drying apparatus 2, the ventilation fan 5, the circulation fan 8, the heating unit 9, and the wind direction varying unit 10 are driven and controlled, and each of the temperature detection elements 13 a to 13 h arranged in the temperature detection unit 13 is controlled. A control unit 14 including a CPU that performs arithmetic processing on the acquired temperature data is provided.

  The control unit 14 uses the input signal from the operation unit 15 provided on the wall inside or outside the bathroom 1 in order to set the operation of the bathroom ventilation drying device 2, the ventilation fan 5, the circulation fan 8, and the heating means. 9. Controls the wind direction variable means 10 to create bathroom spaces with different conditions such as “ventilation”, “circulation ventilation”, “heating”, “drying”. The operation unit 15 includes an operation switch for setting an operation mode, an LED, an LCD, and the like for displaying the operation mode.

  The control unit 14 and the operation unit 15 are connected by wire and perform signal transmission. However, the present invention is not limited to this, and a wireless signal transmission method using infrared rays or radio waves may be used.

  The above configuration will be described with reference to an operation flow diagram shown in FIG. 4, an energization angle diagram of the wind direction varying means 10 shown in FIG. 5, and a transition diagram of bathroom temperature and clothing temperature shown in FIG.

  When the user operates the operation unit 15 and selects the drying mode, the drying operation is started. First, the wind direction variable means 10 is opened by driving the motor 11 to secure the ventilation path of the circulating air in STEP 1, and the ventilation fan 5, the circulation fan 8, and the heating means 9 are sequentially operated in STEP 2 and STEP 3. Driven to form circulating hot air. The rotation angle θ1 of the wind direction varying means 10 is determined by the control unit 14 so as to be within a range of about 5 to 45 degrees below the main body installation surface, that is, the ceiling surface, and in the range of the washing area. The ceiling-mounted bathroom ventilation / drying apparatus 2 is generally installed in the upper part of the bathtub, and the area where clothes can be suspended is generally constructed in the vicinity of the upper part of the bathtub. Therefore, here, if the rotation angle θ1> 45 degrees or more, the possibility of overlapping with the hangable area of the garment 12 becomes extremely high. Therefore, within the range of about 5 to 45 degrees below the main body installation surface, the rotation angle can be limited by using the clothing as the hanging inner area.

  Next, in STEP 4, the bathroom temperature Ta is calculated in a state where the wind direction varying means 10 is fixed in the range of 5 degrees ≦ θ1 ≦ 45 degrees excluding the area where the clothes 12 can be suspended. As a method for calculating the bathroom temperature Ta, for example, there is a method of sampling the temperature data of each of the temperature detection elements 13a to 13h a plurality of times in about one minute and calculating the average of the plurality of acquired temperature data. The stored temperature is stored in the control unit 14 as a bathroom temperature Ta. Here, the bathroom temperature Ta is calculated with the wind direction varying means 10 fixed, but the present invention is not limited to this. For example, the wind direction varying means 10 is swung within a range of 5 degrees ≦ θ1 ≦ 45. The temperature detection accuracy can be further increased by sampling a plurality of temperature data at a plurality of angles and calculating the bathroom temperature Ta.

  Next, in STEP 5, in order to determine the presence or absence of clothing 12, the motor 11 is driven and the rotation angle of the wind direction varying means 10 is within a range of 45 degrees or less downward with respect to the main body installation surface and after washing in the washing direction. The energization angle is controlled so as to be within a range where clothing is expected to be hung.

  Next, in STEP 6, the temperature data of the temperature detecting means 13 is acquired and the clothing temperature Tc is calculated. Regarding the calculation of the clothing temperature Tc, the temperature data of each of the temperature detecting elements 13a to 13h is acquired in about one minute from the start of measurement, and the clothing temperature Tc is determined by averaging the acquired plurality of data. Normally, when warm air or circulating air is blown onto the clothing 12 in a state where the washed clothing is suspended in the bathroom 1, the clothing temperature is lower than the bathroom temperature because moisture is adsorbed. This decrease in clothing temperature is due to the loss of heat of vaporization. Paying attention to this, comparison calculation between bathroom temperature Ta and clothing temperature Tc calculated last time is performed. If Ta> Tc, it is determined that clothing 12 is present. When the condition of Ta> Tc is not satisfied, that is, when Ta = Tc or Ta <Tc, it is determined that there is no clothing that has adsorbed moisture, and the control unit 14 determines in STEP 10 in a fixed time set in advance. Perform timer operation.

  Although it has been determined that clothing has been present, processing for increasing the presence identification accuracy of the clothing 12 is performed in STEP 8 in consideration of fluctuations in the outside air temperature, failure of the temperature detection means 13, and the like. The temperature difference between the bathroom temperature Ta and the clothing temperature Tc is Tx, and if it is within the range of 0 degree <Tx <1 degree or 5 degrees <Tx, it is judged as a measurement error or misrecognition of the temperature detecting means 13 first. The timer operation of the indicated STEP 10 is performed. If it is within the range of 1 degree ≦ Tx <5 degrees, it is determined that the moisture-absorbing clothing is surely present, and the process proceeds to the next step. It should be noted that the range of Tx has been clarified by experiments that it is a predetermined range in the case of clothes that have been dehydrated after washing.

  As shown in FIG. 6, the warm air circulates in the bathroom 1, so that the clothing temperature Tc also increases as the bathroom temperature Ta increases. Here, assuming that the bathroom temperature after a certain time is Ta ′, the clothing temperature is Tc ′, and the temperature difference is Tx ′, the relationship of Ta <Ta ′, Tc <Tc ′, Tx> Tx ′ is established, and thereafter Tx ′. Approaches 0, and Ta ′ and Tc ′ are in a temperature equilibrium state. The control unit 14 controls the motor 11 so as to be within the range of the rotation angle θ1 of the wind direction varying means 10 and measures Ta ′, and also controls Tc ′ so as to be within the range other than the rotation angle θ1 of the wind direction varying means 10. Measure alternately at regular intervals. The controller 14 constantly monitors the temperature transition of Ta ′ and Tc ′, and when the temperature equilibrium state is reached, it is determined that the garment 12 has dried, and the heating means 9 is controlled to stop. If the heating means 9 is stopped here, there is a concern about the influence of the residual heat inside the bathroom ventilation drying apparatus 2, and therefore the operation of the circulation fan 8 continues for about 1 minute as a cooling effect. After completion of the cooling operation, the ventilation fan 5 may be stopped simultaneously with the stop control of the circulation fan 8, but further, the residual heat in the bathroom is discharged to the outside, and the minimum time that the residual heat can be discharged is as follows: For example, it is possible to prevent discomfort due to residual heat when the user enters the bathroom 1 to take in the clothing 12 by delaying the ventilation fan 5 for about 5 to 10 minutes.

  In this way, the present invention monitors the temperature in the bathroom and the temperature of the clothes to be dried in a non-contact manner, and determines the degree of drying of the clothes based on the temperature transition, so the surface temperature of the clothes to be dried is directly detected. The degree of dryness can be judged, flexibly responding to environmental changes such as climate and weather, and accurately estimating the dryness of clothing without being affected by the size of the indoor space and the material forming the room Therefore, it is possible to provide a bathroom ventilation drying apparatus that can prevent excessive drying with a minimum required power consumption.

  Next, an embodiment for judging an abnormal state will be described with reference to a transition diagram of bathroom temperature and clothing temperature shown in FIG. The same parts as those already described are denoted by the same reference numerals, and detailed description thereof is omitted.

  As the warm air circulates in the bathroom 1, the clothing temperature Tc rises as the bathroom temperature Ta rises, and the temperature difference Tx between Ta and Tc changes. Here, assuming that the bathroom temperature after a certain time is Ta ′, the clothing temperature is Tc ′, and the temperature difference is Tx ′, the relationship of Ta <Ta ′, Tc <Tc ′, Tx <Tx ′ is established, and Tx ′ is When the value exceeds a predetermined value, the control unit 14 determines that the clothing is heated more than necessary for some reason, and immediately stops and controls the ventilation fan 5, the circulation fan 8, and the heating means 9. The predetermined value can be set to a temperature at which abnormal heating of clothing can be reliably determined, for example, 50 degrees or more.

  Thus, the present invention has a configuration in which the temperature detecting means determines that it is in an abnormal state when the clothing temperature exceeds the bathroom temperature and exceeds a predetermined value, and controls the ventilation means, the circulation means, and the heating means to stop. Therefore, if the clothes that are to be dried are accidentally placed near the bathroom ventilation drying device main body and the clothes become hotter than necessary due to the high temperature hot air during drying, the product operation can be stopped immediately by detecting the high temperature and necessary As described above, it is possible to provide a bathroom ventilation drying apparatus that can dry clothes without being exposed to high temperatures.

(Embodiment 2)
As another embodiment, a side wall surface installation type bathroom ventilation drying apparatus shown in FIG. 8, that is, an installation example of a wall hanging type bathroom ventilation drying apparatus will be described. The wall-hanging type is characterized by the following configuration because the positional relationship where clothes are suspended is different as viewed from the bathroom ventilation dryer.

  Here, the same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  The main body is a bathroom wall that is installed above the ceiling, the main body installation surface is the bathroom wall surface, and clothes to be dried can be reached from the bathroom floor at a position lower than the main body. Since it is suspended at the position, the rotation angle θ2 of the wind direction varying means 10 is within the range of about 5 to 45 degrees above the main body installation surface with respect to the vertical direction in FIG. The position is determined by the control unit 14 so as to be in the range. Here, if the rotation angle θ2> 45 degrees or more, there is a very high possibility of overlapping with the clothes suspendable area, so the rotation angle is limited.

  Next, the bathroom temperature Ta is calculated in a state where the wind direction varying means 10 is fixed in a range of 5 degrees ≦ θ2 ≦ 45 other than the hangable area of the clothes 12. The Ta calculation method and the subsequent operation flow are the same as those in the first embodiment.

  Thus, in the present invention, the temperature detecting means is configured to calculate the temperature in the bathroom from a temperature in the range of 5 to 45 degrees above the main body installation surface. Therefore, in the side wall installation type bathroom ventilation drying apparatus, clothing By recognizing the temperature in the upper area of the clothing hanging device, that is, the area that is not mistakenly recognized as the clothing temperature, as a bathroom temperature, an accurate relative comparison with the clothing temperature is possible, and erroneous recognition of the degree of drying can be prevented. It is possible to provide a bathroom ventilation drying apparatus with improved accuracy in determining the degree of drying.

(Embodiment 3)
Another embodiment will be described with reference to a transition diagram of bathroom temperature and clothing temperature shown in FIG. 9 and an operation flowchart shown in FIG. The present embodiment is different from the other embodiments in the configuration for specifying the area where the clothes are suspended. The same components as those in the first and second embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

  When the user operates the operation unit 15 and selects the drying mode, the drying operation is started. First, in order to secure a ventilation path for circulating air, the wind direction variable means 10 is opened by driving the motor 11, and the ventilation fan 5, the circulation fan 8, and the heating means 9 are sequentially driven to form the circulating hot air. . The rotation angle θ1 of the wind direction varying means 10 is controlled to be within the range of about 5 to 45 degrees below the main body installation surface and in the washing field direction, and the wind direction is varied in the range of 5 degrees ≦ θ1 ≦ 45 degrees. The bathroom temperature Ta is calculated with the means 10 fixed.

  Next, processing for specifying the presence / absence of clothing and the area where the clothing is suspended is performed. The motor 11 is driven, and the energization angle is controlled so that the air direction varying means 10 has a rotation angle θ4 within a range of 45 ° or more downward with respect to the main body installation surface and a range in the washing field direction. Within the range of the rotation angle θ4, for example, the rotation angle is driven by about 5 degrees, and temperature data is acquired from the plurality of temperature detection elements 13a to 13h for each rotation angle. And clothing temperature Tc1, Tc2, Tc3 ... is calculated for every rotation angle from the average value of the acquired temperature data. Then, a comparison operation of the measured temperature data of the plurality of Tcx and the previously measured bathroom temperature Ta is performed, and a rotation angle θ5 that satisfies Ta> Tcx is derived. The clothes 12 exist within the range of the rotation angle θ5, and control is performed so as to blow the circulating hot air only in this area. The subsequent clothes drying determination method and operation flow are the same as those in the first embodiment.

  Thus, in the present invention, the temperature detecting means is driven by the motor 11 that can control the rotation angle, the rotation speed, and the rotation direction, and the area where the clothes are present is specified and the circulating air is limited to the area where the clothes are present. Since the wind direction varying means 10 is controlled so as to blow air, the drying time can be shortened by blowing air only in the area where the clothes are present, reducing uneven drying of the clothes and the minimum necessary It is possible to provide a bathroom ventilation drying apparatus that prevents excessive drying with low power consumption.

(Embodiment 4)
In the present embodiment, in contrast to the first to third embodiments, as shown in FIG. 11, the operation unit 15 is provided with notifying means 16 made of a sounding body such as a buzzer. Other configurations are the same as those in the first to third embodiments.

  In the above configuration, when the drying operation of the clothing 12 is completed, the notification means 16 provided in the operation unit 15 is sounded to notify the user of the completion of the drying operation.

  As described above, the present invention is configured to include a notification means for notifying the user of the end of drying, so that the user can easily recognize the end of drying. Prevents moisture from reattaching to clothing.

  The bathroom ventilation drying apparatus according to the present invention not only performs an appropriate estimation of the end of drying, but also reduces the running cost for drying clothes to improve drying efficiency, and not only for bathrooms but also for drying clothes. Applicable to all devices.

Cross-sectional view of a bathroom ventilation drying apparatus and a bathroom according to Embodiment 1 of the present invention The bathroom top view which shows the temperature detection viewing angle of Embodiment 1 Control block diagram of the first embodiment Operation flowchart of the first embodiment The block diagram which shows the operation | movement at the time of the temperature detection in the bathroom of Embodiment 1 Temperature transition diagram of the first embodiment Temperature transition diagram in abnormal state in Embodiment 1 Cross-sectional view of a bathroom ventilation drying apparatus and a bathroom according to Embodiment 2 of the present invention Operation diagram of wind direction varying means in the third embodiment Operation flowchart in the third embodiment Control block diagram in the fourth embodiment

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Bathroom 2 Bathroom ventilation drying apparatus 9 Heating means 10 Wind direction variable means 11 Motor 12 Clothing 13 Temperature detection means 16 Notification means

Claims (10)

Ventilation means for discharging the air in the bathroom to the outdoors, circulation means for circulating the air in the bathroom, heating means for heating the circulating air, and a wind direction varying means for adjusting the blowing angle of the circulating air blown into the bathroom; A bathroom ventilating and drying apparatus comprising temperature detecting means in which a plurality of temperature detecting elements for measuring the temperature distribution in the bathroom or the temperature of clothes arranged in the bathroom are arranged in an array, the temperature detecting means The presence of clothing is determined from the temperature difference between the temperature in the bathroom and the clothing temperature detected by, and when the presence of clothing is detected, the degree of drying of the clothing is calculated from the transition of the temperature difference and the clothing is automatically dried. A bathroom ventilation drying apparatus for controlling the ventilation means, the circulation means, the heating means and the wind direction varying means. The bathroom ventilation drying apparatus according to claim 1, wherein the temperature detection means detects infrared rays. 3. The bathroom ventilation drying apparatus according to claim 1, wherein the temperature detecting means is driven by a motor capable of controlling a rotation angle, a rotation speed and a rotation direction. When the temperature difference between the bathroom temperature detected by the temperature detecting means and the clothing temperature becomes a predetermined value or less, it is determined that the clothing is in a dry state, and stop control of the heating means is performed. The bathroom ventilation drying apparatus in any one of claim | item 1-3. When the temperature difference between the bathroom temperature detected by the temperature detection means and the clothing temperature is equal to or less than a predetermined value, it is determined that the clothing is in a dry state, and the heating means is stopped and the ventilation means or The bathroom ventilation drying apparatus according to any one of claims 1 to 3, wherein any one of the circulation means is driven. When the clothing temperature detected by the temperature detection means exceeds the bathroom temperature and becomes a predetermined value or more, it is determined that the condition is abnormal, and the ventilation means, the circulation means, and the heating means are controlled to stop. The bathroom ventilation drying apparatus according to any one of claims 1 to 3. The main body is installed on the ceiling, the temperature detection means is in the range of 5 to 45 degrees below the main body installation surface, and calculates the temperature in the bathroom from the temperature in the washing area. Bathroom ventilation drying device. The bathroom ventilation drying apparatus according to claim 3, wherein the main body is installed on a wall surface, and the temperature detection means calculates the temperature in the bathroom from a temperature in the range of 5 to 45 degrees above the main body installation surface. The temperature detection means is driven by a motor capable of controlling the rotation angle, the rotation speed and the rotation direction, and specifies the area where the clothes exist from the temperature difference between the bathroom temperature and the clothes temperature detected by the temperature detection means, The bathroom ventilation drying apparatus according to any one of claims 1 to 8, wherein the air direction varying means is controlled so as to blow circulating air only in an area where clothing is present. The bathroom ventilation drying apparatus according to any one of claims 1 to 5, or 7 to 9, further comprising an informing means for informing the end of drying.

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