JP2011000228A - Bathroom ventilation dryer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bathroom ventilation dryer with excellent energy saving property and reliability, capable of obtaining a required sufficient drying effect matched with an environment while reducing power consumption and improving finish feeling.SOLUTION: Within the set operation time Tx, hot air drying is performed for the fixed time T1 first, then blowing drying is performed for the prescribed time T3, and the hot air drying is performed for the prescribed time T2 finally. Hot air required operation time Th and blowing required operation time Tc are obtained corresponding to the temperature and moisture of air inside an undressing room 2, and the prescribed time T3, T2 is set on condition that the prescribed time T2 becomes absolute minimum on the basis of the relation of the operation time Tx, the fixed time T1, the hot air required operation time Th and the blowing required operation time Tc.

Description

  The present invention relates to a bathroom ventilation dryer for drying clothes in a bathroom.

  There is known a bathroom ventilation dryer which is attached to a ceiling of a bathroom and dries clothes suspended in the bathroom. As an example of the operation by the bathroom ventilation dryer, the blower is continuously operated for t1 time set by the user using the weight of clothes as a guide, and heated at the first t2 time and the last t3 time at the t1 time, respectively. There is a drying operation for operating the means (for example, Patent Document 1). According to this drying operation, since the heating operation is performed only for the first t2 hours and the last t3 hours, power consumption can be reduced, and the clothing can be finished plumply by the last heating operation.

  In addition, there is a ventilating dryer that performs hot air operation for X hours determined according to the temperature in the bathroom in the initially set Z time, and continues only air blowing for the remaining Y time (for example, Patent Document 2).

  Furthermore, in order to prevent mold in the bathroom, there is a dryer in which each operation time of strong ventilation, weak ventilation, and warm air is switched according to the temperature and humidity of the bathroom adjacent to the bathroom (for example, Patent Document 3). ).

Japanese Patent No. 3110632 JP 2002-62049 A JP-A-2005-37110

  The drying operation in which the heating means is operated for t2 hours and t3 hours within t1 time set based on the weight of clothing is mainly aimed at reducing power consumption and ensuring a feeling of finish. The effect may not be obtained.

  In the case of a dryer that performs hot air operation for X hours according to the temperature in the bathroom within the initially set Z time, there is a problem that power consumption increases if the Z time is set long.

  A dryer that switches the operating time of strong ventilation, weak ventilation, and warm air according to temperature and humidity is intended to prevent mold in the bathroom, and does not provide a sufficient effect for drying clothes.

  The present invention takes the above-mentioned circumstances into consideration, and its purpose is excellent in energy saving and reliability that can provide a necessary and sufficient drying effect according to the environment while reducing power consumption and improving the finished feeling. It is to provide a bathroom ventilation dryer.

  An invention bathroom ventilation dryer according to claim 1 is a ventilation means for ventilating the bathroom, a circulation means for circulating the air in the bathroom, a heating means for heating the circulating air in the bathroom, and the air outside the bathroom Detecting means for detecting the temperature and humidity of the garment, operating means for setting the operating time Tx of the clothes drying operation, and within the operating time Tx set by the operating means, first by the circulating means and the heating means First detection means for performing hot air drying for a predetermined time T1, then performing air blowing drying only by the circulation means for a predetermined time T3, and finally performing hot air drying by the circulation means and the heating means for a predetermined time T2, and the detection Depending on the temperature and humidity detected by the means, the hot air required operating time Th required to dry the clothes in the bathroom only by the hot air drying, and the clothes are dried only by the air drying. The second control means for obtaining the necessary operation time Tc required for air blowing, the predetermined time T3 for air drying by the first control means, and the predetermined time T2 for hot air drying are set to the operation time Tx set by the operation means. The predetermined time T2 for the hot air drying is required based on the relationship between the predetermined time T1 for the hot air drying by the first control means and the relationship between the required hot air operating time Th and the necessary air blowing operation time Tc obtained by the second control means. And third control means for setting under minimum conditions.

  According to the bathroom ventilation dryer of the present invention, it is possible to obtain a necessary and sufficient drying effect according to the environment while reducing power consumption and improving the finished feeling, and energy saving and reliability are improved.

The figure which shows the whole structure of each embodiment of this invention. The figure which shows the structure of the remote control of each embodiment. The block diagram of the control circuit of each embodiment. The figure which shows the required operation time setting table for clothing weight 2kg in 1st Embodiment. The figure which shows the required operation time setting table for clothing weight 3kg in 1st Embodiment. The figure which shows the required operation time setting table for clothing weight 5kg in 1st Embodiment. The time chart which shows the warm air drying of the clothing drying driving | operation in each embodiment, the ventilation drying, the transition of warm air drying, and each execution time. The flowchart for demonstrating the effect | action of 1st Embodiment. The figure which shows the humidity change at the time of the clothing drying driving | operation in 2nd Embodiment. The figure which shows the clothing drying index table of 2nd Embodiment. The figure which shows the clothing drying index table of 3rd Embodiment. The figure which shows the clothing drying index selection conditions of 4th Embodiment.

[1] First embodiment
Hereinafter, a first embodiment of the present invention will be described with reference to the drawings.
As shown in FIG. 1, a dressing room 2 is provided adjacent to the bathroom 1, and the bathroom 1 and the dressing room 2 are partitioned by a door 3. A vent 3a is formed in the lower part of the door 3, and the air in the dressing room 2 flows into the bathroom 1 through the vent 3a. In addition, a bathtub 4 is provided in the bathroom 1 and a hanging rod 5 for hanging clothes is provided.

  A bathroom ventilation dryer 10 is provided on the back side of the ceiling surface 1 a of the bathroom 1. The bathroom ventilation dryer 10 includes a ventilation panel 11 facing the space in the bathroom 1 through the ceiling surface 1 a, a damper 12 for adjusting the intake air amount provided in the flow path of the intake air through the ventilation panel 11, and the dressing room 2. A ventilation panel 13 that faces the space in the dressing room 2 through the ceiling surface 2a, a duct 14 that guides air sucked through the ventilation panel 13 to the main body, a circulation unit 20, a ventilation unit 30, and an exhaust that leads from the ventilation unit 30 to the outdoor space. The duct 15 and the control unit 40 are provided.

  The circulation unit 20 includes a circulation fan (circulation means) 21 and an electric heater (heating means) 22, and the circulation air is circulated while circulating the air in the bathroom 1 through the ventilation panel 11 and the damper 12 by the operation of the circulation fan 21. Is heated by the heat generated by the electric heater 22, and hot air is blown out from the air outlet provided in the ventilation panel 11. The ventilation unit 30 includes a ventilation fan 31, and discharges air in the back side space of the ceiling surface 1 a and intake air from the ventilation panels 11 and 13 to the outside through the duct 15 by the operation of the ventilation fan 31.

  A remote control type operating device (operation means; hereinafter referred to as a remote control) 50 is provided on the wall surface of the dressing room 2. As shown in FIG. 2, the remote controller 50 includes a display unit 51 for displaying numerical values such as time / weight / temperature, a light emitting diode 51a for informing a change in the operation time Tx of the hot air drying operation, An on-timer button 52 for setting the time, a light-emitting diode 52a for notifying whether the time is set by operating the on-timer button 52, a off-timer button 53 for setting the time until the end of operation, and the off-timer button 53 A light emitting diode 53a for notifying whether or not time has been set by the operation, a clothing weight button 54 for setting the weight of clothing to be dried, and a temperature / humidity detection unit (first detection) for detecting the temperature and humidity of the air in the dressing room 2 Means) 55, an up button 56a for increasing the numerical display on the display unit 51, a down button 56b for decreasing the numerical display on the display unit 51, and for setting the drying operation燥釦 comprising 57, ventilation button 58 for setting the ventilation operation, the heating button 59 for setting a heating operation, and stop button 60 for instructing operation stop.

  The remote controller 50 is connected to the control unit 40. The control unit 40 includes a CPU 41, a memory 42, a timer 43, a ventilation drive unit 44, a circulation drive unit 45, and a heating drive unit 46. The ventilation drive unit 44 drives the ventilation fan 31 in accordance with a command from the CPU 41. The circulation drive unit 45 drives the circulation fan 21 in accordance with a command from the CPU 41. The heating drive unit 46 drives the electric heater 22 in accordance with a command from the CPU 41.

  The memory 42 stores a control program and various data. As a part of the data in the memory 42, there are three required operation time setting tables for clothing weights 2 kg, 3 kg, and 5 kg shown in FIGS. 4, 5, and 6. These necessary operation time setting tables include the warm air required operation time Th required for drying clothes in the bathroom only by hot air drying, and the necessary operation time Tc required for drying the clothes only by air drying. Are stored in association with the temperature and humidity of the air in the dressing room 2. The warm air drying operation is an operation in which the circulation fan 21 and the electric heater 22 are turned on to blow out the warm air into the bathroom, and the air blowing operation is an operation in which the circulation fan 21 is turned on and the electric heater 22 is turned off. The operation is only to circulate the air in the bathroom. In these necessary operation time setting tables, the data above the broken line is the data of the necessary operation time Tc, and the data below the broken line is the data of the necessary operation time Th of the hot air.

The CPU 41 has the following means (1) to (5) as main functions.
(1) Within the operation time Tx of the clothes drying operation set by the remote controller 50, first, warm air drying by the operation of the circulation fan 21 and the electric heater 22 is performed for a fixed time T1, and then the operation of the circulation fan 21 First control means that performs air drying by only the predetermined time T3 and finally performs hot air drying by the operation of the circulation fan 21 and the electric heater 22 for the predetermined time T2.

  (2) In accordance with the temperature and humidity detected by the temperature / humidity detector 55, the hot air required operating time Th required to dry the clothes in the bathroom 1 only by the hot air drying, and the air blowing the clothes. Second control means for obtaining the necessary operation time Tc required for drying only for drying. Specifically, during the execution of the clothes drying operation, the hot air required operation time Th and the air blowing required operation time Tc are stored in memory according to the weight set by the remote controller 50 and the temperature and humidity detected by the temperature / humidity detection unit 55. Read sequentially from 42.

  (3) The predetermined time T3 for air drying by the first control means and the predetermined time T2 for hot air drying are set to the operation time Tx set by the remote controller 50, the predetermined time T1 for hot air drying by the first control means, and the second time. Third control means that is set based on the relationship between the required hot air required operation time Th and the required air blowing operation time Tc determined by the control means, and under a condition that the predetermined time T2 for hot air drying is the minimum necessary. Specifically, during the execution of the clothes drying operation, the predetermined time T3 of the air drying and the predetermined time T2 of the hot air drying are set to the operation time Tx set by the remote controller 50, the predetermined time T1 of the hot air drying, and the hot air are required. The predetermined time T2 of the hot air drying is the minimum necessary using “Tx = T1 + T3 + T2” and “T3 = (Th−T1−T2) × (Tc / Th)” representing the relationship between the operation time Th and the required operation time Tc Set the value to be.

  (4) When the operation time Tx set by the remote controller 50 is less than the required hot air operation time Th, the predetermined hot air drying time T2 subtracts the predetermined hot air drying time T1 from the required hot air operation time Th. 4th control means which changes the driving time Tx set with the remote control 50 so that it may become the set time.

  (5) Notification means for notifying the change of the operation time Tx by the fourth control means by the light emitting diode 51a of the remote controller 50.

Next, the operation will be described with reference to the time chart of FIG. 7 and the flowchart of FIG.
The user hangs clothes to be dried on the hanging rod 5 of the bathroom 1, closes the door 3, and sets the approximate weight of the suspended clothes with the remote controller 50. In this case, each time the clothing weight button 54 of the remote controller 50 is pressed, the clothing weights 2 kg, 3 kg, and 5 kg are sequentially switched and displayed on the display unit 51. If the approximate weight is 2 kg, the user repeatedly presses the clothing weight button 54 until 2 kg is displayed on the display unit 51. Subsequently, an arbitrary operation time Tx is set by operating the up button 56a or the down button 56b, and the drying button 57 is pressed. With these operations, the clothes drying operation is set (YES in step 101).

  With the setting of the clothes drying operation (YES in step 101), the temperature and humidity detected by the temperature / humidity detection unit 55 of the remote controller 50 are captured (step 102), and the captured temperature / humidity and the set weight are set. Corresponding hot air required operation time Th and air blowing required operation time Tc are read from the memory 42 (step 103).

  If the set operation time Tx is equal to or longer than the read hot air required operation time Th (NO in step 104), the predetermined time T3 for air drying and the predetermined time T2 for hot air drying in the clothes drying operation are obtained. , “Tx = T1 + T3 + T2” and “T3 = (Th−T1−T2) × (Tc /) representing the relationship between the operation time Tx, the constant warm air drying time T1, and the required hot air operation time Th and the required air blowing operation time Tc. Th) "is used to calculate the predetermined time T2 for hot air drying, thereby calculating the minimum required time T2 for hot air drying and setting this value (step 105).

  For example, when the set weight is 2 kg, the detected temperature is 12 ° C., and the detected humidity is 50%, the required operating time setting table in FIG. 4 corresponding to the set weight 2 kg is referred to, and the detected temperature is 12 ° C. and the detected humidity is 50%. The necessary operation time Tc = 9.5 hours and the required warm air operation time Th = 2.0 hours are read out.

  If 7.0 hours is set as the operation time Tx and the constant time T1 for hot air drying is 0.5 hour, “Tx = T1 + T3 + T2 = 0.5 + T3 + T2” is obtained, and “T3 + T2 = 7.0−0.5 = 6.5” is obtained for T3 and T2. "Is obtained.

  Based on the conversion formula of T3 “T3 = (Th−T1−T2) × (Tc / Th)” and T2 is the required minimum value, T3 = 6.3333 ·· time, T2 = 0.166・ ・ Time can be calculated. Since this calculation result is not divisible, in practice, in order to ensure drying, the warm air heating time side is rounded up to T2 = 0.17 hours and T3 = 6.33 hours.

  If the set weight is 3 kg, the detected temperature is 16 ° C., and the detected humidity is 58%, the necessary operating time setting table of FIG. 5 corresponding to the set weight of 3 kg is referred to, and the detected temperature is set to 16 ° C. and the detected humidity is 58%. Corresponding fan required operation time Tc = 9.60 hours and hot air required operation time Th = 2.22 hours are read out. Similarly, if the set weight is 5 kg, the detected temperature is 18 ° C., and the detected humidity is 62%, the necessary operating time setting table in FIG. 6 corresponding to the set weight 5 kg is referred to, and the detected temperature is 18 ° C. and the detected humidity is 62%. The necessary air blowing operation time Tc = 16.96 hours and the hot air necessary operation time Th = 3.20 hours are read out.

  If the operation time Tx is less than the required hot air operation time Th in the determination in step 104 (YES in step 104), the clothes cannot be dried during the set operation time, so the predetermined time T2 for the hot air drying is the warm air. It is set to a time (= Th−T1) obtained by subtracting a predetermined time T1 for hot air drying from the required wind operating time Th, and a predetermined time T3 for air drying is set to a predetermined value, for example, 1 minute ( Step 106). Thereby, the operation time Tx (= T1 + T3 + T2) is changed. As a result, the clothes can be surely dried. The changed operation time Tx is displayed on the display unit 51 of the remote controller 50, and the user is notified of the change by turning on the light emitting diode 51a (step 107).

  When the operation is started, the circulation fan 21 is turned on to circulate the air in the bathroom 1, and the circulation air is heated by the heat generated by the operation of the electric heater 22, and the time count ta by the timer 43 is started. (Step 108). As long as the time count ta does not reach the predetermined time T1 (NO in step 109), hot air drying by air circulation and heating is continued.

  When the time count ta reaches a certain time T1 (YES in step 109), the electric heater 22 is turned off (step 110). As a result, the hot air drying is finished, and the operation is shifted to the air drying only by the operation of the circulation fan 21. Along with this transition, the time count ta of the timer 43 is compared with the value of “fixed time T1 + predetermined time T3” (step 111).

  When the time count ta reaches “fixed time T1 + predetermined time T3” (YES in step 111), the electric heater 22 is turned on again and heating is started (step 112). That is, the air drying is finished, and the process proceeds to hot air drying. Along with this transition, the time count ta of the timer 43 is compared with “a certain time T1 + a predetermined time T3 + a predetermined time T2” (step 113).

  When the time count ta reaches “fixed time T1 + predetermined time T3 + predetermined time T2” (YES in step 113), the operations of the circulation fan 21 and the electric heater 22 are turned off, and the time count ta is cleared (step 114).

  Thus, in the operation time Tx, first, the warm air drying by the operation of the circulation fan 21 and the electric heater 22 is performed for a certain time T1, and then the air drying by only the operation of the circulation fan 21 is performed for the predetermined time T3, and finally the circulation fan 21. And the clothing drying operation which performs the warm air drying by operation | movement of the electric heater 22 for the predetermined time T2 is performed. The clothes in the bathroom 1 are dried by the clothes drying operation.

  By the way, when the time count ta is less than “fixed time T1 + predetermined time T3” (NO in step 111) and air drying is performed only by the operation of the circulation fan 21, the temperature / humidity detection unit 55 of the remote controller 50 detects the time. The temperature and humidity to be taken in are fetched (step 115), and the hot air required operating time Th and the air blowing required operating time Tc corresponding to the fetched temperature and humidity and the set weight are read from the memory 42 (step 116).

  If the set operation time Tx (initially set operation time Tx or changed operation time Tx) is less than the read hot air required operation time Th (YES in step 117), the present time is reached. The relational expression “Tx = T1 + T3 ′ + T2 ′” and the conversion formula “T3 ′” fitting the execution time T3 ′ (= ta−T1) of the air and the predetermined time T2 ′ of the hot air drying corresponding to the current temperature and humidity conditions. = (Th−T1−T2 ′) × (Tc / Th) ”, a predetermined time T2 ′ for hot air drying is obtained (step 118).

  If the predetermined time T2 ′ is the same as the previously determined predetermined time T2 (YES in step 119), the comparison between the time count ta and “fixed time T1 + predetermined time T3” is continued (step 111).

  When the predetermined time T2 ′ is not the same as the predetermined time T2 obtained last time (NO in Step 119), the remaining operation time “Tx−ta” is compared with the predetermined time T2 ′ (Step 120).

  If the remaining operation time “Tx−ta” is less than the predetermined time T2 ′ (YES in step 120), the predetermined time T3 for air drying is a time obtained by subtracting the predetermined time T1 from the current time count ta (= ta−T1). The predetermined time T2 ′ is updated and set as the predetermined time T2 for hot air drying (step 121). As a result, the operation time Tx is changed to “T1 + T3 + T2 ′”. The changed operation time Tx is displayed on the display unit 51 of the remote controller 50, and the user is notified of the change by turning on the light emitting diode 51a (step 122).

  Following this notification, the electric heater 22 is turned on again to shift to hot air drying (step 112). Along with this transition, the time count ta of the timer 43 is compared with “a certain time T1 + a predetermined time T3 + a predetermined time T2” (step 113). When the time count ta reaches “fixed time T1 + predetermined time T3 + predetermined time T2” (YES in step 113), the operations of the circulation fan 21 and the electric heater 22 are turned off, and the time count ta is cleared (step 114).

  On the other hand, when the remaining operation time “Tx-ta” is equal to or longer than the predetermined time T2 ′ in the determination of step 120 (NO in step 120), the predetermined time T3 for air drying is set to “Tx-T1-T2 ′”. At the same time, the predetermined time T2 ′ is updated and set as the predetermined time T2 for hot air drying (step 123). Then, the comparison between the time count ta and “fixed time T1 + predetermined time T3” is continued (step 111).

  If the operation time Tx (the initially set operation time Tx or the changed operation time Tx) is equal to or longer than the required hot air operation time Th (NO in step 117) in the comparison in step 117 above, up to the present time The relational expression “Tx = T1 + T3 ′ + T2 ′” and the conversion formula “T3 ′” fitting the execution time T3 ′ (= ta−T1) of the air and the predetermined time T2 ′ of hot air drying corresponding to the current temperature and humidity conditions = (Th−T1−T2 ′) × (Tc / Th) ”, a predetermined time T2 ′ of hot air drying is obtained, and the predetermined time T2 ′ is updated and set as the predetermined time T2 of hot air drying. The predetermined drying time T3 is updated and set to a time (= ta−T1) obtained by subtracting the predetermined time T1 from the current time count ta (step 124). As a result, the operation time Tx is changed to “T1 + T3 + T2 ′”. The changed operation time Tx is displayed on the display unit 51 of the remote controller 50, and the user is notified of the change by turning on the light emitting diode 51a (step 122).

  Following this notification, the electric heater 22 is turned on again to shift to hot air drying (step 112). Along with this transition, the time count ta of the timer 43 is compared with “a certain time T1 + a predetermined time T3 + a predetermined time T2” (step 113). When the time count ta reaches “fixed time T1 + predetermined time T3 + predetermined time T2” (YES in step 113), the operations of the circulation fan 21 and the electric heater 22 are turned off, and the time count ta is cleared (step 114).

  As described above, within the set operation time Tx, first, hot air drying for a certain time T1 is performed, then air drying is performed for a predetermined time T3, and finally hot air drying is performed for a predetermined time T2. The clothes in the bathroom 1 can be surely dried while reducing the power consumption while minimizing the operation of the electric heater 22 that increases the power consumption. A wasteful drying operation in which the electric heater 22 operates even though the clothes are sufficiently dried is eliminated, and an energy saving effect is obtained. In addition, by performing the final warm air drying, the finish of the clothes becomes plump and a good finish feeling can be obtained.

  In particular, the hot air required operation time Th and the air blowing required operation time Tc corresponding to the air temperature and air humidity of the dressing room 2 adjacent to the bathroom 1 are obtained, and the obtained hot air is required in the operation time Tx set by the user. Since the predetermined time T3 for air drying and the predetermined time T2 for the minimum required hot air drying are set based on the operation time Th and the necessary air blowing operation time Tc, a necessary and sufficient drying effect according to the temperature and humidity can be obtained.

  Also, as a requirement for setting the predetermined time T3 for air drying and the predetermined time T2 for the last hot air drying, not only the temperature and humidity but also the weight of clothing set by the user is added. A good drying effect.

  Furthermore, the predetermined time T3 for air drying and the predetermined time T2 for the last hot air drying are updated and set not only at the start of the operation but also during the air drying, so that the temperature and humidity change. Efficient clothes drying is possible.

  In addition, when the operation time Tx set by the user is shorter than the required hot air operation time Th, the operation time Tx is automatically changed to an optimum value. Even an unfamiliar user can reliably dry clothes.

[2] Second embodiment
As shown by a broken line in FIG. 3, a temperature / humidity detection unit (second detection means) 70 is connected to the CPU 41 of the control unit 40. Although not shown in FIG. 1, the temperature / humidity detection unit 70 is provided in the suction air passage of the circulation fan 21 of the circulation unit 20 and detects the temperature and humidity of the air in the bathroom 1.

Then, the CPU 41 of the control unit 40 has the following second control means (12) instead of the second control means (2) among the means (1) to (5) of the first embodiment.
(12) After drying for a predetermined time Ta (<T1) from the start of the first warm air drying in the clothes drying operation, the clothes drying corresponding to the humidity change rate detected by the temperature / humidity detecting unit 70 The index is read from the clothes drying index table in the memory 42, and the hot air required operating time Th required to dry the clothes in the bathroom 1 by hot air drying and the air is blown according to the read clothes drying index. Second control means for obtaining a necessary blowing operation time Tc necessary for drying.

The operation will be described.
The user hangs clothes to be dried on the hanging rod 5 of the bathroom 1 and closes the door 3, sets an arbitrary operation time Tx by operating the up button 56a or the down button 56b, and presses the drying button 57. By this operation, the clothes drying operation is started.

  When the first hot air drying of the clothes drying operation is started, the humidity of the air in the bathroom 1 once increases and then decreases as shown in FIG. The rate of change in humidity (gradient of change) during this descent depends on the material of the clothing and the size of the bathroom 1, but basically, the slower the weight of the clothing in the bathroom 1, the lower the weight. Faster.

  The temperature and humidity of the air in the bathroom 1 are detected by the temperature / humidity detection unit 70 after a predetermined time Ta (<T1) after the start of warm air drying for a certain time T1, and the detected humidity is the same as the detected temperature. The clothes drying index corresponding to the change rate of the clothes is read from the clothes drying index table in the memory 42. As the humidity change rate, the amount of change in humidity per unit time when the humidity once increases and then decreases is detected.

  As shown in FIG. 10, the clothing drying index table includes a clothing drying index A to I as an index of the speed of drying as “temperature 10 ° C. or less”, “temperature 11 ° C. to 20 ° C.”, “temperature 21 ° C. or more”. , “Humidity change rate Xa or less”, “Humidity change rate Xb to Xn”, “Humidity change rate Xo or more”. The humidity change rate is slow on the Xa side and fast on the Xo side. Among the clothing drying indices A to I, I has the fastest drying speed and A has the slowest drying speed.

  For example, when the temperature is 15 ° C. and the humidity change rate is Xb, the clothes drying index E is read. When the temperature is 21 ° C. or higher and the humidity change rate is Xo or higher, the clothes drying index I is read.

  Then, the hot air required operating time Th and the air blowing required operating time Tc are obtained in such a manner that the read clothes drying index is replaced with the clothing weight and temperature / humidity in the required operating time setting tables of FIGS. The predetermined time T3 for air drying and the predetermined time T2 for hot air drying are set on the basis of the required hot air operating time Th and the required air blowing operation time Tc.

  Thus, following the warm air drying for a predetermined time T1, air blowing drying for a predetermined time T3 and hot air drying for a predetermined time T2 are performed.

As described above, the clothing drying index corresponding to the temperature and humidity change rate in the bathroom 1 is obtained, and the predetermined time T3 for air drying and the predetermined time T2 for hot air drying are set based on the clothing drying index. User setting of weight is not required. Therefore, it is possible to dry clothes with excellent energy saving without burdening the user and without consuming electric power wastefully. In addition, a necessary and sufficient drying effect according to the temperature and humidity can be obtained, and high reliability as clothing drying can be ensured.
Other configurations, operations, and effects are the same as those in the first embodiment. Therefore, the description is omitted.

[3] Third embodiment
In the third embodiment, the CPU 41 of the second embodiment has the following second control means (22) instead of the second control means (12).
(22) The clothing drying index corresponding to the temperature and humidity detected by the temperature / humidity detection unit 70 after a predetermined time Ta (<T1) from the start of the first warm air drying in the clothing drying operation. Is read from the clothing drying index table in the memory 42, and the hot air required operating time Th required to dry the clothing in the bathroom 1 by hot air drying, and the clothing is blown dry according to the read clothing drying index. The second control means for obtaining the necessary operating time Tc required for air drying.

The operation will be described.
After a predetermined time Ta (<T1) from the start of warm air drying for a certain time T1, the temperature and humidity of the air in the bathroom 1 are detected by the temperature / humidity detection unit 70, and the detected temperature and humidity and the humidity are detected. The clothes drying index corresponding to the change rate is read from the clothes drying index table in the memory 42.

  As shown in FIG. 11, the clothing drying index table stores the clothing drying indexes AA to DI, which are indicators of the speed of drying, in association with the temperature and humidity and the humidity change rate. Of the clothes drying indices AA to DI, AI has the fastest drying speed and DA has the slowest drying speed.

  For example, if the humidity is 70%, the temperature is 15 ° C., and the humidity change rate is Xb, the clothes drying index CE is read. If the humidity is 50%, the temperature is 21 ° C. or higher, and the humidity change rate is Xo or higher, the clothes drying index BI is read.

Based on the read clothes drying index, the required hot air operating time Th and the required air blowing operation time Tc are obtained. Based on the required hot air operating time Th and the required air blowing operation time Tc, a predetermined air blowing drying time T3 and A predetermined time T2 for hot air drying is set.
Other configurations, operations, and effects are the same as those of the second embodiment. Therefore, the description is omitted.

[4] Fourth embodiment
In the fourth embodiment, the CPU 41 of the second embodiment has the following second control means (32) instead of the second control means (12).
(32) A specific enthalpy x near the remote controller 50 is calculated from the temperature and humidity detected by the temperature detector 55 of the remote controller 50 after a predetermined time Ta (<T1) after the first warm air drying of the clothes drying operation is started. Calculate the absolute humidity y in the vicinity of the temperature / humidity detection unit 70 from the temperature and humidity detected by the temperature / humidity detection unit 70, and obtain a clothing drying index corresponding to the specific enthalpy x and the absolute humidity y, In accordance with the clothing drying index, the required hot air operating time Th required to dry the clothing in the bathroom 1 by hot air drying and the required operating time Tc required to dry the clothing by air drying are determined. Second control means to be obtained.

The operation will be described.
After a predetermined time Ta (<T1) after the start of warm air drying for a certain time T1, the temperature and humidity of the air in the dressing room 2 are detected by the temperature detection unit 55 of the remote controller 50, and from the detected temperature and humidity A specific enthalpy x near the remote controller 50 is calculated. Moreover, the temperature and humidity of the air in the bathroom 1 are detected by the temperature / humidity detection unit 70, and the absolute humidity y in the vicinity of the temperature / humidity detection unit 70 is calculated from the detected temperature and humidity. Then, a clothing drying index corresponding to the specific enthalpy x and the absolute humidity y is selected.

  The relationship between the specific enthalpy x and the absolute humidity y shown in FIG. 12 is stored in the memory 42 as a clothing drying index selection condition, and the clothing drying index selection condition is based on the calculated specific enthalpy x and absolute humidity y. By reference, the clothes drying index is selected.

That is, when the absolute humidity y is less than “2.72e ⁻⁰⁴ x + 3.95e ⁻⁰³ ”, the clothing drying index A is selected. When the absolute humidity y is “2.72e ⁻⁰⁴ x + 3.95e ⁻⁰³ ” or more and less than “2.91e ⁻⁰⁴ x + 4.00e ⁻⁰³ ”, the clothing drying index B is selected. Absolute humidity y is "2.91e ^-04 x + 4.00e ^-03" or more when less than ^{"2.87e -04 x + 4.69e -03"} , clothes drying index C is selected. When the absolute humidity y is “2.87e ⁻⁰⁴ x + 4.69e ⁻⁰³ ” or more, the clothes drying index D is selected. Among these clothes drying indexes A to D, A has the fastest drying speed and D has the slowest drying speed.

Based on the clothes drying index thus selected, the required hot air operating time Th and the required air blowing operation time Tc are obtained, and the predetermined air blowing drying time T3 and the temperature are calculated based on the required hot air operating time Th and the required air blowing operation time Tc. A predetermined time T2 for air drying is set.
Other configurations, operations, and effects are the same as those of the second embodiment. Therefore, the description is omitted.

[5] Modification
In the first embodiment, either 2 kg, 3 kg, or 5 kg is selectively set as the clothing weight. However, there is no limitation on the setting value and the number of clothing weights, and the circulation capacity and heating of the circulation unit 20 are not limited. It can be appropriately selected according to the ability. Moreover, although the temperature / humidity detection part 55 was set as the structure which the remote control 50 has, it is good also as a structure which attaches the temperature / humidity detection part 55 to the ceiling surface, wall surface, etc. of the dressing room 2 other than the remote control 50, for example. In addition, the present invention is not limited to the above-described embodiments as they are, and can be embodied by modifying the constituent elements without departing from the scope of the invention in the implementation stage. In addition, various inventions can be formed by appropriately combining a plurality of constituent elements disclosed in the above embodiments. For example, some components may be deleted from all the components shown in each embodiment. Furthermore, you may combine suitably the component of mutually different embodiment.

  DESCRIPTION OF SYMBOLS 1 ... Bathroom, 2 ... Dressing room, 3 ... Door, 4 ... Bathtub, 5 ... Hanging rod, 10 ... Bathroom ventilation dryer, 11, 13 ... Ventilation panel, 20 ... Circulation unit, 21 ... Circulation fan, 22 ... Electric heater , 30 ... Ventilation unit, 31 ... Ventilation fan, 40 ... Control unit, 41 ... CPU, 42 ... Memory, 43 ... Timer, 50 ... Remote control, 51 ... Display unit, 55 ... Temperature / humidity detection unit

Claims (10)

A ventilation means for ventilating the bathroom;
A circulating means for circulating the air in the bathroom;
Heating means for heating the circulating air in the bathroom;
Detection means for detecting temperature and humidity;
Operating means for setting the operating time Tx of the clothes drying operation;
Within the operation time Tx set by the operation means, first, the hot air drying by the circulation means and the heating means is performed for a predetermined time T1, and then the air drying by only the circulation means is performed for a predetermined time T3, and finally the above-mentioned First control means for performing a hot air drying by the circulation means and the heating means for a predetermined time T2,
Depending on the temperature and humidity detected by the detection means, the hot air required operating time Th required for drying the clothes in the bathroom only by the hot air drying and the clothes are dried only by the air blowing drying. A second control means for obtaining the necessary operation time Tc required for air blowing;
The predetermined time T3 for air drying by the first control means and the predetermined time T2 for hot air drying are defined as an operation time Tx set by the operating means, a predetermined time T1 for hot air drying by the first control means, and the first time A third control means for setting under a condition that the predetermined time T2 for the hot air drying is a minimum necessary based on the relationship between the required hot air operation time Th and the required air blowing operation time Tc obtained by the control means;
A bathroom ventilation dryer characterized by comprising:   The bathroom ventilation dryer according to claim 1, wherein the detection means detects the temperature and humidity of air in a dressing room adjacent to the bathroom. Storage means for storing the hot air required operation time Th and the air blowing required operation time Tc in association with the temperature and humidity of the air outside the bathroom;
The second control means reads out the hot air required operation time Th and the air blowing required operation time Tc corresponding to the temperature and humidity detected by the detection means from the storage means,
The third control means includes a predetermined time T3 for air drying by the first control means and a predetermined time T2 for hot air drying, an operating time Tx set by the operating means, and a hot air drying time by the first control means. “Tx = T1 + T3 + T2” and “T3 = (Th−T1−T2) × (Tc /) representing the relationship between the constant time T1 and the required hot air operation time Th read by the second control means and the required air blowing operation time Tc. Th) ”is set under the condition that the predetermined time T2 of the hot air drying is the minimum necessary.
The bathroom ventilation dryer according to claim 1. The second control means stores the hot air required operation time Th and the air required operation time Tc corresponding to the temperature and humidity detected by the detection means when the air drying by the first control means is being performed. Read sequentially from
When the third control means performs the air drying by the first control means, the predetermined time T3 of the air drying and the predetermined time T2 of the hot air drying are set to the operation time Tx set by the operation means, “Tx = T1 + T3 + T2” and “T3 = (Th) representing the relationship between the constant time T1 of hot air drying by the first control means and the required hot air operation time Th read by the second control means and the necessary air blowing operation time Tc. -T1-T2) × (Tc / Th) ", and sequentially set under the condition that the predetermined time T2 of hot air drying is the minimum necessary.
The bathroom ventilation dryer according to claim 1. When the operation time Tx set by the operation means is less than the required hot air operation time Th determined by the second control means, the predetermined time T2 of hot air drying set by the third control means is the temperature Fourth control means for changing the operation time Tx set by the operation means so as to be a time obtained by subtracting a constant time T1 of hot air drying by the first control means from the wind required operation time Th;
The bathroom ventilation dryer according to claim 1, further comprising:   6. The bathroom ventilation dryer according to claim 5, further comprising notification means for notifying a change in the operation time Tx by the fourth control means. An operation means for setting the weight of clothing to be dried;
The second control means has a hot air required operation time Th required to dry clothes in the bathroom by the hot air drying according to the set weight and the temperature and humidity detected by the detection means. , And obtaining the necessary air blowing operation time Tc necessary for drying the garment by the air drying.
The bathroom ventilation dryer according to claim 1. The detection means detects the temperature and humidity of the air in the bathroom,
The second control means obtains a clothes drying index corresponding to the temperature detected by the detecting means after a predetermined time from the start of operation and the humidity change rate detected by the detecting means, and according to the clothes drying index, A hot air required operation time Th required to dry the clothes in the bathroom by the hot air drying, and an air blowing required operation time Tc required to dry the clothes by the air drying;
The bathroom ventilation dryer according to claim 1. The detection means detects the temperature and humidity of the air in the bathroom,
The second control means obtains a clothing drying index corresponding to the temperature and humidity detected by the detection means and a change rate of the humidity after a predetermined time from the start of operation, and in accordance with the clothing drying index, A hot air required operation time Th required for drying the clothes by the hot air drying and a fan required operation time Tc required for drying the clothes by the air drying are obtained.
The bathroom ventilation dryer according to claim 1. The detection means includes first detection means for detecting the temperature and humidity of the air in the dressing room adjacent to the bathroom, and second detection means for detecting the temperature and humidity of the air in the bathroom,
The second control means obtains a specific enthalpy in the vicinity of the first detection means from the temperature and humidity detected by the first detection means after a predetermined time from the start of operation, and is detected by the second detection means. The absolute humidity in the vicinity of the second detection means is obtained from the temperature and humidity, the clothing drying index corresponding to the specific enthalpy and the absolute humidity is obtained, and the clothing in the bathroom is dried in the warm air according to the clothing drying index. The required operating time Th required for drying with the hot air necessary for drying in the air and the required operating time Tc required for drying the garment with the air drying are obtained.
The bathroom ventilation dryer according to claim 1.

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