JP2017058121A - Bathroom air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To shorten drying time of clothes and the like and to reduce running cost by distributing a circulation air amount and an exhaust air amount which are suitable according to the temperature and the humidity of the outside air.SOLUTION: In operating a body 1, on the basis of the temperature and the relative humidity detected by temperature detection means 9 and relative humidity detection means 10, a damper 7 is actuated by selecting a suitable actuation pattern out of a plurality of actuation patterns determined beforehand at a control board 11. With this constitution, the damper 7 is actuated by selecting a suitable pattern at the control board 11 by detecting the temperature and humidity of a bathroom 16 by the temperature detection means 9 and the relative humidity detection means 10, and a bathroom air conditioner can be acquired which can shorten drying time of clothes and the like and which can reduce running cost by distributing a circulation air amount 21 and an exhaust air amount 22 which are suitable according to the temperature and the humidity of the outside air.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a bathroom air conditioner installed behind a ceiling.

  Conventionally, this kind of bathroom air conditioner adjusts the opening degree of the air path at the time of drying operation using an air path adjustment means (for example, refer to patent documents 1).

  Hereinafter, the bathroom air conditioner will be described with reference to FIG.

  As shown in FIG. 6, the main body 101 includes a fan 103 and a motor 104 as air blowing means inside a frame 102 that also serves as an air path.

  Then, a circulation air passage 105 communicating with the fan 103 and the air outlet 110 provided in the main body 101 facing the bathroom 109, and an exhaust port 111 communicating with the outside through the fan 103 and an exhaust duct (not shown) are communicated. Exhaust air passage 106, circulation air passage 105, damper 107 that changes the distribution of air to exhaust air passage 106, and circulation air heating means 108 that heats the air sucked from bathroom 109.

  A control board (not shown) for operating the main body 101 is provided in the main body 101, and a controller is provided, for example, on the wall of a dressing room (not shown).

  The main body 101 can be operated in a plurality of operation modes. When performing the drying operation, a part of the wind from the fan 103 is guided to the circulation air passage 105 and heated by the circulation air heating means 108 to warm the air. By making the wind, and sending a part of the wind to the exhaust air passage 106, moisture is discharged while drying the object to be dried such as clothes.

Japanese Patent No. 4706378

  In such a conventional bathroom air conditioner, the damper is operated so that the amount of circulating air flowing through the circulation air passage and the amount of exhaust air flowing through the exhaust air passage are appropriately determined for each operation mode. For this reason, there is a problem in that there is a risk that drying time of clothing or the like may be prolonged or running cost may be increased without necessarily distributing the optimal amount of each air depending on the temperature and humidity of the outside air.

  Accordingly, the present invention solves the above-described conventional problems, and distributes a suitable amount of circulating air and exhaust air according to the temperature of the outside air, etc., thereby shortening the drying time of clothes and the like and reducing the running cost. It aims at providing the bathroom air conditioner which can do.

  In order to achieve this object, a bathroom air conditioner according to an aspect of the present invention is a bathroom air conditioner having a main body and having a 24-hour ventilation function concealed in the back of the ceiling, the main body Is a fan that returns the air sucked from the bathroom to the bathroom or exhausts it outdoors, a circulation air passage that communicates the fan and the air outlet facing the bathroom, and the outdoor through the fan and the exhaust duct. An exhaust air passage that communicates with an exhaust port that communicates, a damper that changes a distribution of air to the circulation air passage and the exhaust air passage, a circulating air heating means that heats air sucked from the bathroom, and the bathroom Temperature detecting means for detecting the temperature of the air, a control board for controlling the operation of the bathroom air conditioner, and a design panel for ensuring design characteristics when looking up the bathroom air conditioner from the bathroom Prepared, front The control board is to operate the damper by selecting a suitable operation pattern from a plurality of predetermined operation patterns based on the temperature detected by the temperature detection means when operating the main body. Yes, and this achieves the intended purpose.

  According to the present invention, it is possible to distribute a suitable amount of circulating air and exhaust air according to the temperature of the outside air and the like, thereby shortening the drying time of clothes and the like and reducing the running cost.

The internal block diagram seen from the front of the bathroom air conditioner of Embodiment 1 of this invention The figure which shows the state which installed the bathroom air conditioner behind the ceiling of the bathroom Internal configuration diagram seen from the front at the damper position where the circulation air passage of the bathroom air conditioner widens Internal configuration diagram seen from the front at the damper position where the exhaust air passage of the bathroom air conditioner widens Graph of pattern division for damper control of the bathroom air conditioner Internal configuration diagram seen from the front of a conventional bathroom air conditioner

  A bathroom air conditioner according to an aspect of the present invention is a bathroom air conditioner having a main body and having a 24-hour ventilation function concealed in the back of the ceiling, wherein the main body absorbs air sucked from the bathroom. Or exhaust air that communicates between the fan and the air outlet that communicates with the fan through the exhaust duct and the circulation air passage that communicates the fan with the air outlet facing the interior of the bathroom. A damper for changing the distribution of air to the circulation air passage and the exhaust air passage, a circulation air heating means for heating the air sucked from the bathroom, and a temperature detection means for detecting the temperature of the air in the bathroom And a control board for controlling the operation of the bathroom air conditioner, and a design panel for ensuring a design property when looking up the bathroom air conditioner from the bathroom, the control board includes the main body. When driving Based on the temperature of the temperature detection unit detects, with the configuration that actuates the damper by selecting a suitable operation pattern from a plurality of operation patterns determined in advance.

  As a result, the temperature of the bathroom is detected by the temperature detection means, and a suitable pattern is selected on the control board and the damper is operated. Therefore, a suitable amount of circulating air and amount of exhaust air are distributed according to the temperature of the outside air. There is an effect that the drying time of clothes and the like can be shortened and the running cost can be reduced.

  Further, the operation pattern may be configured such that when the temperature is low, the damper is opened to increase the amount of air flowing through the circulation air passage, and the amount of air flowing through the exhaust air passage is reduced.

  As a result, the temperature of the bathroom is detected by the temperature detecting means, and the pattern at the time of low temperature is selected by the control board and the damper is operated to open the damper. This is advantageous in that it can distribute the amount of water and shorten the drying time of clothes and the like and reduce the running cost.

  Further, the operation pattern may be configured such that when the temperature is high, the damper is actuated on the side where the damper is closed, the amount of air flowing through the exhaust air passage is increased, and the amount of air flowing through the circulation air passage is reduced.

  As a result, the temperature of the bathroom is detected by the temperature detection means, and the pattern at the time of high temperature is selected by the control board and is operated to the side that closes the damper. The effect is that the amount of air can be distributed to shorten the drying time of clothes and the like and to reduce the running cost.

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

(Embodiment 1)
As shown in FIG. 1, a main body 1 is provided with a fan 3 that is a sirocco fan and a motor 4 that is an AC motor as a blowing means inside a frame 2 made of, for example, resin that also serves as an air passage. The fan 3 is connected to the motor 4.

And
Similarly, inside the main body 1,
Exhaust air communicating with the outside (not shown) through the circulation air passage 5 that communicates the fan 3 and the air outlet 19 of the bottom surface 18 of the main body 1 facing the bathroom 16, and the fan 3 and an exhaust duct (not shown). The exhaust air passage 6 that communicates with the opening 20, the damper 7 that changes the distribution of the amount of air to the circulation air passage 5 and the exhaust air passage 6, that is, the circulation air 21 and the exhaust air 22, and the air sucked by the fan 3 Circulating wind heating means 8 which is a PTC heater to be heated, temperature detection means 9 which is a thermistor sensor which is located on the windward side in the direction of the damper 7 with respect to the circulating wind heating means 8 and detects the temperature of the air, and the fan 3 Relative humidity detection means 10 that is a capacitive humidity sensor that is located on the windward side in the direction of the bathroom 16 and detects the relative humidity of air, and a microcomputer, relay, and capacitor for controlling the operation of the main body 1 Etc. Control board 11, and a city.

  And the control board 11 is attached to the upper part of the flame | frame 2 through the case made from a flame-retardant resin.

  In addition, consideration is given so that moisture in the bathroom 16 and splashes of shower water during bathing do not enter the control board 11.

  And the blower outlet 19 is equipped with the louver 12 for changing the blowing direction of a circulating wind.

  The louver 12 is connected to a louver driving stepping motor (not shown), and the louver driving stepper motor is driven by an instruction from the control board 11 so that the louver 12 can be opened to an arbitrary angle or set by the user. By changing the wind direction can be changed to the desired direction.

  In addition, by continuously driving the louver driving stepping motor, it is possible to control the blowing direction of the circulating air to a wide angle so as to face every corner of the bathroom 16.

  When the main body 1 is not operated or when only the 24-hour ventilation function is used, it is not necessary to secure the circulation air passage 5, so the louver 12 is closed to ensure the design, and the heating operation or drying is performed. When driving, the louver 12 is driven in the direction of blowing the circulating air to the bathroom 16.

  Moreover, as shown in FIG. 2, the design panel 13 for ensuring the design property when the main body 1 is looked up from the bathroom 16 is provided.

  The operation mode is selected by the user using the controller 15 connected to the control board 11 via the communication line 14. The controller 15 is attached to a wall surface at the entrance of the bathroom 16, for example, a dressing room 17 via a switch box.

  The damper 7 is connected to a damper driving stepping motor (not shown), and the damper can be opened to an arbitrary angle by driving the damper driving stepping motor according to a command from the control board 11.

  Opening the damper means that the damper 7 is driven so as to increase the wind that flows closer to the circulating air path 5 than in FIG. 1, as shown in FIG. 3.

  Further, the main body 1 has a plurality of operation modes in addition to the 24-hour ventilation function mentioned above. For example, when performing heating operation, the damper 7 is driven until it is fully opened and the wind sent from the fan 3 is sent. Is supplied to the circulating air passage 5 and energized to the circulating air heating means 8 at the same time, thereby heating the circulating air to warm air.

  Further, when performing the drying operation, a part of the wind from the fan 3 (circulation wind and exhaust wind) is led to the circulation wind path 5 and heated by the circulation wind heating means 8 to be warm air, and at the same time a part of the wind Is sent to the exhaust air passage 6, and moisture is discharged from the bathroom 16 while drying by applying warm air to the object to be dried. Therefore, the damper 7 is driven to the half-open position.

  Now, in the conventional bathroom air conditioner, when the user selects the drying operation, the damper 7 is driven to the half-open position, and then the motor 4 and the fan 3 are driven to blow air. Although the wind heating means 8 is energized, the opening degree of the damper 7 is fixed at a predetermined opening degree for the drying operation, so that there is a problem that the opening degree is not always optimal depending on the temperature and humidity of the outside air.

  For example, when the outside air temperature is low, regardless of whether the relative humidity is high or low, the circulation air passage 5 side is moved to the side closer to the opening of the damper of the drying operation under general operating conditions as shown in FIG. By increasing the amount of air flowing in the bathroom and keeping the temperature in the bathroom 16 high, the object to be dried can be dried more quickly. Further, when the outside air temperature is high and the relative humidity is also high, the amount of wind flowing to the exhaust air passage 6 side is increased by moving to the side closer to the opening degree of the damper of the drying operation under general operation conditions as shown in FIG. Thus, the air in the bathroom 16 can be discharged quickly, and the object to be dried can be dried more quickly.

  When the outside air temperature is high and the relative humidity is low, as shown in FIG. 1, the amount of wind flowing toward the circulation air passage 5 is increased by moving to the side where the outside air temperature and the relative humidity are both high. The drying target can be dried more quickly by increasing the blown-out wind speed and urging the drying target with a stronger wind. As shown in FIG. 5, the bathroom air conditioner in the present invention stores parameterized parameters in advance for controlling the damper 7 at the start of the drying operation, and is suitable for the damper 7 from the temperature and relative humidity at the start of the drying operation. The opening degree is selected.

  In the conventional bathroom air conditioner, the opening degree of the damper 7 is not adjusted for each temperature and humidity as in the example, and when the drying operation is selected, the opening degree of the damper 7 is uniformly controlled.

  Here, the low outside air temperature means less than 15 ° C., preferably less than 10 ° C., and the high outside air temperature means 25 ° C. or more, preferably 30 ° C. or more. Low relative humidity refers to less than 50%, preferably less than 45%, and high relative humidity refers to 70% or more, preferably 75% or more. The object to be dried refers to clothes dried on a clothes bar (not shown) installed in the bathroom 16.

  A low temperature of 10 ° C. or 15 ° C. is the first predetermined temperature, a high temperature of 25 ° C. or 30 ° C. is the second predetermined temperature, a low humidity of 45% or 50% is the first predetermined humidity, and the high humidity. Assuming that 70% or 75% or the like is the second predetermined humidity, the first predetermined temperature <the second predetermined temperature, and the first predetermined humidity <the second predetermined humidity.

  It supplements about the pattern shown in FIG.

  At the start of operation, the temperature detected by the temperature detection means 9 is defined as temperature T, and the relative humidity detected by the relative humidity detection means 10 is defined as relative humidity H.

  When “temperature T <first predetermined temperature”, the opening degree of the damper 7 (pattern 1) is made larger than the predetermined opening degree (pattern 2), the amount of air flowing through the circulation air passage 5 is increased, and the exhaust air passage Reduce the amount of air flowing to 6.

  When “first predetermined temperature ≦ temperature T <second predetermined temperature” and “relative humidity H <first predetermined humidity”, the opening degree of the damper 7 (pattern 1) is set larger than the predetermined opening degree (pattern 2). The amount of air flowing through the circulation air passage 5 is increased, and the amount of air flowing through the exhaust air passage 6 is reduced.

  When “first predetermined temperature ≦ temperature T <second predetermined temperature” and “first predetermined humidity ≦ relative humidity H”, the opening degree of the damper 7 (pattern 2) is set to the same degree as the predetermined opening degree (pattern 2). To do.

  When “second predetermined temperature ≦ temperature T” and “relative humidity H <first predetermined humidity”, the opening degree of the damper 7 (pattern 2) is set to the same degree as the predetermined opening degree (pattern 2).

  When “second predetermined temperature ≦ temperature T” and “first predetermined humidity ≦ relative humidity H”, the opening degree of the damper 7 (pattern 3) is made smaller than the predetermined opening degree (pattern 2), and the exhaust air passage 6 The amount of air flowing through the circulation air passage 5 is increased, and the amount of air flowing through the circulation air passage 5 is decreased.

  Note that when “second predetermined temperature ≦ temperature T” and “second predetermined humidity ≦ relative humidity H”, the opening degree of the damper 7 may be smaller than that of the pattern 3.

  Further, when “temperature T <first predetermined temperature” and “relative humidity H <first predetermined humidity”, the opening degree of the damper 7 may be larger than that of the pattern 1.

  The main body 1 determines the outside air temperature and the outside air relative humidity from the detected temperature of the temperature detecting means 9 and the relative humidity detecting means 10 at the time when the drying operation mode is selected, but the main body 1 has a 24-hour ventilation function. Air always flows into the bathroom 16 from the outside, and the temperature and humidity in the bathroom 16 are approximately equal to the outside air temperature and the outside air relative humidity. However, when performing a drying operation, the relative humidity in the bathroom 16 tends to be higher than the relative humidity in the outside air due to the influence of moisture naturally evaporated from the clothing while the user hangs the clothing on the clothes-drying bar. Therefore, it is preferable to program the microcomputer mounted on the control board 11 so that the relative humidity is determined to be lower than the reading value of the relative humidity detection means 10 by a certain value, for example, 5%.

  In the first embodiment, a PTC heater is used as the circulating air heating means 8, but even if a halogen heater or a carbon heater is used, there is no difference in operation. In addition, since the PTC heater has a characteristic that when the temperature reaches a certain temperature, the resistance rapidly increases to keep the temperature constant, the PTC heater has high safety and is generally used in a bathroom air conditioner.

  Further, although the thermistor sensor is used as the temperature detection means 9, when the temperature detection function is attached to the relative humidity detection means 10, both the temperature and the relative humidity may be detected by the relative humidity detection means 10.

  The thermistor sensor used in the first embodiment is the same as the bathroom air conditioner in the first embodiment, in which the thermistor sensor is used for both temperature detection and prevention of excessive temperature rise of the PTC heater and relative humidity. This is because there was no difference between the temperature detected by the detection means 10 and the temperature detected by the thermistor sensor that affects the present invention.

  Therefore, by not using the temperature detection function of the relative humidity detection means 10, the wiring between the relative humidity detection means 10 and the control board 11 can be reduced and the number of microcomputer ports mounted on the control board 11 does not need to be increased. Therefore, the cost reduction effect can be greatly expected.

  In the first embodiment, an AC motor is used as the air blowing means, but a DC motor may be used. When a DC motor is used, an effect that the controllability of the motor rotation speed is generally superior to that of an AC motor can be expected.

  The bathroom air conditioner according to the present invention distributes a suitable amount of circulating air and exhaust air according to the temperature and humidity of the outside air, and can shorten the drying time of clothing and the like and reduce the running cost. Therefore, it is useful as a ceiling-embedded bathroom heating / ventilating dryer for drying a bathroom.

DESCRIPTION OF SYMBOLS 1 Main body 2 Frame 3 Fan 4 Motor 5 Circulation air path 6 Exhaust air path 7 Damper 8 Circulation air heating means 9 Temperature detection means 10 Relative humidity detection means 11 Control board 12 Louver 13 Design panel 14 Communication line 15 Controller 16 Bathroom 17 Dressing room 18 Bottom surface 19 Air outlet 20 Exhaust port 21 Circulating air 22 Exhaust air

Claims (4)

A bathroom air conditioner having a main body and having a 24-hour ventilation function concealed behind the ceiling,
The body is
A fan for returning the air sucked from the bathroom to the bathroom or exhausting the air to the outdoors;
A circulation air passage communicating the fan and the air outlet facing the bathroom;
An exhaust air passage that communicates the fan and an exhaust port communicating with the outdoors through an exhaust duct;
A damper for changing the distribution of air to the circulation air passage and the exhaust air passage;
Circulating air heating means for heating the air sucked from the bathroom;
Temperature detecting means for detecting the temperature of the air in the bathroom;
A control board for controlling the operation of the bathroom air conditioner;
A design panel for ensuring design properties when looking up the bathroom air conditioner from the bathroom,
The control board selects a suitable operation pattern from a plurality of predetermined operation patterns based on the temperature detected by the temperature detection means when operating the main body, and operates the damper. Bathroom air conditioner. The temperature detected by the temperature detection means when operating the main body is defined as a temperature T,
When the predetermined temperature which is a low temperature is the first predetermined temperature,
When “temperature T <first predetermined temperature”, the control board increases the amount of air flowing through the circulation air passage by setting the opening of the damper to be larger than the predetermined opening and flows through the exhaust air passage. The bathroom air conditioner according to claim 1, wherein the amount of air is reduced. The main body further includes a relative humidity detecting means for detecting the relative humidity of the air in the bathroom,
The temperature detected by the temperature detection means when operating the main body is a temperature T, the relative humidity detected by the relative humidity detection means is a relative humidity H,
A predetermined temperature which is a low temperature is set as a first predetermined temperature,
The predetermined temperature that is high is the second predetermined temperature
When the predetermined humidity that is low humidity is the first predetermined humidity,
In the case where “first predetermined temperature ≦ temperature T <second predetermined temperature” and “relative humidity H <first predetermined humidity”, the control board increases the opening of the damper above a predetermined opening, and The bathroom air conditioner according to claim 1, wherein the amount of air flowing through the air passage is increased and the amount of air flowing through the exhaust air passage is reduced. The main body further includes a relative humidity detecting means for detecting the relative humidity of the air in the bathroom,
The temperature detected by the temperature detection means when operating the main body is a temperature T, the relative humidity detected by the relative humidity detection means is a relative humidity H,
The predetermined temperature that is high is the second predetermined temperature
When the predetermined humidity that is low humidity is the first predetermined humidity,
In the case where “second predetermined temperature ≦ temperature T” and “first predetermined humidity ≦ relative humidity H”, the control board sets the opening of the damper smaller than the predetermined opening and flows the air to the exhaust air passage The bathroom air conditioner according to claim 1, wherein the amount of air is increased and the amount of air flowing through the circulation air passage is reduced.

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