JP5115385B2 - Clothes dryer - Google Patents

Description

  The present invention relates to a clothes drying apparatus for drying wet clothes in a general house.

  2. Description of the Related Art Conventionally, as this type of clothes drying apparatus, an apparatus that blows air over a wide area and uniformly dry clothes is known (for example, see Patent Document 1).

  Various wind direction changing devices exist for the purpose of uniformly applying wind over a wide range (see, for example, Patent Document 2).

  Hereinafter, an example of a conventional clothes drying apparatus and wind direction changing apparatus will be described with reference to FIGS.

  As shown in FIG. 8, the blower outlet 101 of the dryer is provided with a blower grill 102 that determines the air blowing direction. The blower grill 102 blows air straight in the width direction of the room and obliquely on both sides. It is a clothes drying apparatus which has the blowing wind direction board 103,104,105 which can be made.

Further, as shown in FIG. 9, a horizontal louver 202 that reciprocates in the vertical direction around a horizontal axis 201 provided in the outlet 204, a horizontal louver drive means 203 that reciprocates the horizontal louver 202 in the vertical direction, A vertical louver 206 provided in the outlet 204 and reciprocatingly swinging in the left-right direction around a vertical axis 205 orthogonal to the horizontal axis, vertical louver driving means 207 for reciprocating the vertical louver 206 in the left-right direction, and horizontal louver drive And a wind direction changing device including a control unit that controls the vertical louver driving unit 207.
Japanese Patent Application Laid-Open No. 2004-278956 JP 2007-240064 A

  In such a conventional blow-off device, since each fin and flap can be divided and interlocked, the configuration is complicated, and there is a problem that the pressure loss due to ventilation resistance is large, and it is required to reduce the pressure loss Has been. The present invention solves such a conventional problem. An air blowing device that can reduce the ventilation loss and reduce the pressure loss by integrating all the fins and simplifying the configuration. It is intended to provide.

  In order to achieve the above-mentioned target, the blower blowing device of the present invention is provided with a blowing means in an air passage connecting a suction port provided in the main body surface panel and a blowout port provided in the main body, and the blowout port And a wind direction changing device for changing the direction of the wind blown from the outlet, and drying the clothing by applying the wind to the clothing, the wind direction changing device Has a rotating shaft in a direction perpendicular to the blowing direction, and includes at least four fins for controlling the direction of the wind in the rotating shaft direction, and the fins are opposite to the two fins close to both ends of the rotating shaft. The rotating shaft and the fin are integrated, and by reversing around the rotating shaft, the air can be diffused or the air can be concentrated. Like the equipped with the installed plates between fins, is capable to block only the center of the air outlet by said plate. By this means, it is possible to obtain a blow-out device that can reduce the ventilation loss and reduce the pressure loss by integrating all the fins and simplifying the configuration.

  Another means includes a speed variable means capable of reciprocating at a variable speed around the rotation axis.

  Another means is provided with a reciprocating angle control means capable of reciprocating at a plurality of reciprocating angles around the rotation axis.

  Another means is to reciprocate around the rotating shaft in a state where the air is diffused, then reverse around the rotating shaft to concentrate the air and reciprocate around the rotating shaft. It can be repeated alternately.

  Another means is provided with a regulating means for regulating the rotational direction.

  The other means is provided with a positioning means for positioning after contacting the regulating means.

  Another means includes a flap for changing the wind direction in the rotation direction of the wind direction changing device, and the flap and the wind direction changing device are driven independently.

  Another means is that the fin has a curvature.

  Another means is that the wind direction changing device is housed inside the main body surface panel when the operation is stopped.

  Another means is that the flap stops at the position of the front panel of the clothes drying apparatus when the operation is stopped.

  As another means, an infrared sensor is provided on the main body surface panel.

  As another means, a dehumidifying means is provided in the air passage.

  As another means, a heating means is provided in the air passage.

  Another means is that the wind direction changing device is subjected to antibacterial and / or antifungal treatment.

  According to the present invention, the air blowing device has an effect of efficiently drying clothes with less energy by supplying wind over a wide range or by partially concentrating the wind with a wind direction changing device with low ventilation resistance. Equipment can be provided.

  In addition, it is possible to provide an air blowing device that is effective in controlling the interval of reciprocation of air blowing, improving air blowing efficiency due to low ventilation resistance, and drying clothes efficiently with less energy.

  In addition, it is possible to provide a blow-out device that is effective in controlling the range in which the reciprocating motion of the blow is good, improving the blow efficiency due to low ventilation resistance, and drying the clothes efficiently with little energy.

  In addition, since the wind direction can be freely controlled, it is possible to provide an air blowing device that has an effect of improving comfort and blowing the entire room and drying clothes efficiently with less energy.

  Moreover, an unnecessary operation | movement can be prevented, ventilation control is good, ventilation efficiency by the ventilation resistance being small becomes good, and the ventilation blowing apparatus with the effect that clothes can be dried efficiently with little energy can be provided.

  In addition, there is a blowout device that has the effect of being able to dry clothes efficiently with less energy, because the reference does not move each time it is operated, the ventilation control is good, the ventilation efficiency is low due to low ventilation resistance it can.

  In addition, by performing appropriate wind direction control, it is possible to provide an air blowing device that has an effect of efficiently drying clothes with less energy.

  Moreover, it is difficult to peel off the surface of the fin, the air blowing efficiency due to the low airflow resistance is improved, and the air blowing device having an effect that the clothes can be efficiently dried with less energy can be provided.

  In addition, it is possible to provide an air blowing device that is effective in maintaining the appearance of the appearance when the operation is stopped.

  In addition, it is possible to provide an air blowing device that maintains the appearance of the appearance, has good air flow control due to good ventilation control, and can efficiently dry clothes with less energy.

  Further, since it is not necessary to blow air on clothes that have already been dried, it is possible to provide an air blowing device that has the effect of not wasting energy.

  In addition, it is possible to provide an air blowing device having an effect of being able to dry in a short time by promoting moisture evaporation by dry air.

  Moreover, the air blowing apparatus with the effect that it can dry in a short time can be provided by raising the temperature of air.

  In addition, it is possible to provide an air blowing device that is effective in improving the unsanitary condition due to an increase in the humidity of the room caused by drying clothes.

  According to a first aspect of the present invention, there is provided air blowing means in an air passage connecting a suction port provided in the main body surface panel and a blowout port provided in the main body, and the blower port and the main body surface panel A clothing drying device that is provided in between and has a wind direction changing device that changes the direction of the wind blown from the outlet, and applies the wind to the clothing to dry the clothing. And at least four fins having a rotation axis in the vertical direction and controlling the direction of the wind in the rotation axis direction, and the fins are provided so as to incline the two fins close to both ends of the rotation shaft in the opposite direction. The rotating shaft and the fin are integrated, and by reversing around the rotating shaft, the air can be diffused or the air can be concentrated. while It is equipped with an installed plate, and the plate can block only the center of the outlet, and the wind direction can be controlled by rotating the wind direction changing device. When drying, widen the wind, and when intensively drying a small amount of clothes or things that are difficult to dry, concentrate the wind locally at the center or outside to efficiently dry the clothes Has the effect of being able to

  The invention according to claim 2 of the present invention is provided with speed variable means capable of reciprocating at a variable speed around the rotation axis, and by changing the time interval at which the wind direction changing device reciprocates, It has the effect that the wind direction can be freely controlled.

  The invention according to claim 3 of the present invention is provided with reciprocal angle control means capable of reciprocating at a plurality of reciprocating angles around the rotation axis, and the wind direction changing device changes the reciprocating angles. Thus, the wind direction can be freely controlled.

  Further, in the invention according to claim 4 of the present invention, after reciprocating around the rotation axis in a state where the air is diffused, the rotation is reversed around the rotation axis so that the air is concentrated. The reciprocating motion can be alternately repeated, and it has the effect of controlling the reciprocating motion of the wind direction changing device and controlling the wind direction by alternately repeating the diffusion and concentration of the air flow.

  Further, the invention according to claim 5 of the present invention is provided with a regulating means for regulating the rotation direction, and by regulating the rotation direction of the wind direction changing device, unnecessary operation can be prevented. It has the effect | action that the damage by contact can be prevented.

  Further, the invention according to claim 6 of the present invention is provided with positioning means for positioning after being brought into contact with the regulating means, and can determine the reference of the rotational position. It is possible to control to fix the.

  The invention according to claim 7 of the present invention includes a flap that changes the wind direction in the rotation direction of the wind direction changing device, and the flap and the wind direction changing device are independently driven, The airflow in the direction parallel to the rotation axis can be controlled by the wind direction change device, and the airflow in the direction perpendicular to the rotation axis of the wind direction change device can be controlled by the flap, so the airflow can be sent to any position, and thick clothes etc. are hard to dry Since the air volume can be appropriately distributed by selectively sending air to the object, the clothes can be efficiently dried.

  In the invention according to claim 8 of the present invention, the fin is provided with a curvature. By providing the fin with a curvature along the air flow path curve, the air easily adheres to the fin and is caused by peeling. It has an effect of making it difficult for pressure loss to occur.

  The invention according to claim 9 of the present invention is such that the wind direction changing device is housed inside the main body surface panel when the operation is stopped, and has an effect that the appearance when the operation is stopped can be improved.

  In the invention according to claim 10 of the present invention, the flap stops at the position of the front panel of the clothes drying device when the operation is stopped. When the flap is closed, the air outlet is closed and the appearance can be maintained. When the flap is opened, the blower outlet can be used effectively to blow air.

  In the invention according to claim 11 of the present invention, an infrared sensor is provided on the main body surface panel, and it becomes possible to identify undried clothing, so the wind is concentrated on the undried clothing. It has the effect | action that clothes can be dried efficiently by sending.

  In the invention according to claim 12 of the present invention, the dehumidifying means is provided in the air passage, and since dry air can be supplied to the clothes, the clothes can be dried more efficiently.

  Further, the invention according to claim 13 of the present invention is provided with a heating means in the air passage, and since the amount of moisture contained in the air can be increased, it has the effect that the drying rate can be increased. .

  Further, the invention according to claim 14 of the present invention is that the wind direction changing device is subjected to antibacterial and / or antifungal processing, and it is possible to prevent the growth of bacteria and mold on the wind direction changing device, and to clean the device. Can be kept in. Moreover, since it can suppress bacteria and mold in the air, it has the effect of supplying clean air to clothing.

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

(Embodiment 1)
First, the structure of Embodiment 1 of this invention is shown.

  FIG. 1 is a configuration diagram showing a cross section of a clothes drying apparatus according to Embodiment 1 of the present invention.

  As shown in FIG. 1, the clothes drying apparatus 11 includes a fan 15 serving as an air blower in an air passage connecting a suction port 13 provided in the main body surface panel 12 and a blowout opening 14 provided in the clothes drying apparatus 11. , A heater 16 as a heating means is provided between the fan 15 and the outlet 14, and a wind direction changing device 17 and a flap 18 for efficiently supplying the wind blown from the outlet 14 to the clothing are provided. It is. By providing the heater 16 as a heating means in the air passage, the amount of moisture contained in the air can be increased, so that the drying speed can be increased. Although it does not specifically limit as a heating means, Various heaters generally used, such as a carbon heater, a ceramic heater, a nichrome heater, and a halogen heater, and means for supplying a temperature from the outside using a heat exchanger can be used. .

  FIG. 2 shows a schematic diagram of the wind direction changing apparatus according to Embodiment 1 of the present invention.

  As shown in FIG. 2, the wind direction changing device 17 is integrated, has a rotation shaft 22 in a direction perpendicular to the blowing direction, and has a plurality of curvature fins 23a, 23b for controlling the wind direction in the direction of the rotation shaft 22. 23c and 23d, and the fins 23a to 23d can rotate at least 180 degrees around the rotation shaft 22 provided to incline the two fins 23a and 23d close to both ends of the rotation shaft 22 in the opposite direction.

  FIG. 3 shows another schematic diagram of the wind direction changing apparatus according to the first embodiment of the present invention.

  Moreover, as shown in FIG. 3, the fins 23a-23d are arrange | positioned so that it may spread radially from the blower outlet 14 side. Further, both ends of the opening of the outlet 14 and the positions of the fins 23 a to 23 d of the air direction changing device 17 are substantially coincident with each other.

  Here, only the center of the outlet is configured to be sealed by the plate 21 installed between the central fins 23b to 23c.

  Although the number of fins 23 is four in this case, it can be increased in a timely manner depending on the size of the opening and the air volume.

  FIG. 4 is a schematic diagram of the wind direction changing device and the flap according to the first embodiment of the present invention.

  As shown in FIG. 4, the wind direction changing device 17 and the flap 18 are connected to stepping motors 43a and 43b, which are separate reciprocating means, and the wind direction changing device 17 and the flap 18 are driven independently. It is. The stepping motors 43a and 43b are connected to control means 44a and 44b, respectively, which are variable in speed and control to reciprocate at a plurality of reciprocating angles.

  Next, the operation of Embodiment 1 of the present invention will be described.

  As shown in FIG. 1, the fan 15 operates, blows air from the blowout port 14, and changes the direction of blowing through the wind direction changing device 17 and the flap 18.

  As shown in FIG. 2, the fins 23 a to 23 d are configured such that the inclination angle of the fins 23 a to 23 d increases as the distance from the center of the blowout port 14 increases, and the wind from the blowout port 14 can be widened to a wide angle. Since the change device 17 is integrated, less ventilation resistance is required, and less load is applied to the air blowing means, which saves energy.

  In addition, since the wind direction can be controlled by rotating the wind direction changing device 17, the amount of clothing is large, and when clothes are to be dried over a wide area, the wind is widened and the amount of clothing is small or difficult to dry. In the case of drying, the clothes can be efficiently dried by concentrating the wind locally.

  In addition, the air direction changing device 17 is reciprocated around the rotating shaft 22 in a state where the air is diffused, and then reversed around the rotating shaft 22 so as to concentrate the air flow so as to reciprocate around the rotating shaft 22. The operation to perform the operation can be alternately repeated and the direction of the wind can be freely controlled, so that the comfort can be improved and the entire room can be blown, and the clothes can be efficiently dried with less energy.

  Here, as an example, the arrangement of the fins 23a to 23d is inclined so that the two fins 23a and 23d close to both ends of the rotating shaft 22 are inclined, but depending on the arrangement of the outlet 14 and the wind direction changing device 17 The fins 23 a to 23 d may be arranged such that the fin 23 a or the fin 23 d close to one end of the rotation shaft 22 is provided substantially perpendicular to the rotation shaft 22.

  In addition, by providing curvature to the fins 23a to 23d, the fins 23a to 23d are provided with a curvature along the flow path curve of the wind from the outlet 14, so that air easily adheres to the fins 23a to 23d. Pressure loss due to peeling can be made difficult to occur.

  Here, when the wind direction changing device 17 is rotated and rotated 90 ° from the configuration in which the inclination angles of the fins 23a to 23d are increased, the plate 21 will block the center of the outlet 14, and the center does not blow, Since the wind can be applied to the clothing only on the outside, the clothing can be efficiently dried when there is clothing that is difficult to dry on the outside.

  As shown in FIG. 3, the fins 23 a to 23 d are arranged so as to spread radially from the outlet 14 side, so that the wind can be spread at a wider angle. Further, when the wind direction changing device 17 is inverted by 180 °, both ends of the opening of the air outlet 14 and the positions of the fins 23 of the air direction changing device 17 substantially coincide with each other, so that the wind from the air outlet 14 is changed. Without escaping to the outside of the device 17, it can be efficiently guided to the inside, and the clothes drying time can be shortened.

  As shown in FIG. 4, since the wind direction changing device 17 and the flap 18 can be driven independently, the airflow parallel to the rotation axis 22 of the wind direction changing device 17 can be controlled by the wind direction changing device 17. Since the airflow in a direction perpendicular to the direction 22 can be controlled by the flap 18, the airflow can be sent to an arbitrary position. Also, since the flap 18 includes a reciprocating means capable of reciprocating at a variable speed, the speed at which the flap 18 is movable By changing the, the amount of air supplied to the clothing can be freely controlled.

  For example, in a certain range of clothing that is difficult to dry such as thick clothing, the speed of the flap 18 is increased to increase the amount of air sent to the clothing, and in a certain range of clothing that is easy to dry such as thin clothing, the speed of the flap 18 is increased. By controlling the speed at which the flap 18 is moved, for example, by reducing the air volume, the air can be sent optimally according to the ease of drying of the clothes, so that the clothes can be efficiently dried.

  Further, since the flap 18 includes a reciprocating means capable of reciprocating at a plurality of reciprocating angles, the wind direction can be freely controlled by changing the plurality of reciprocating angles of the flap 18. For example, if there is a small amount of clothing, the round-trip angle can be reduced to send the air concentrated to the place where the clothing is located, and if there is a large amount of clothing, the round-trip angle can be increased to increase the wind. Can be sent evenly, and by controlling the reciprocating angle of the reciprocating movement of the flap 18 in a plurality of ways, the air can be sent optimally according to the amount of clothing, so that the clothing can be dried efficiently. it can.

  In FIG. 5, the schematic diagram of the wind direction change apparatus and flap of Embodiment 1 of this invention is shown.

  In addition, as shown in FIG. 5, when the operation of the clothes drying apparatus is stopped, the wind direction changing device 17 is housed inside the body surface panel position 32 of the clothes drying apparatus, and the flap 18 is stopped at the body surface panel position 32. Yes, the appearance when the operation is stopped can be improved.

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

  First, the structure of Embodiment 2 of this invention is shown.

  In FIG. 6, the block diagram which shows the cross section of the clothing drying apparatus of Embodiment 2 is shown.

  An example of the clothes drying apparatus shown in FIG. 6 is passed through the dehumidification rotor 62 and the processing fan 63 as a blowing means for blowing the air taken in from the suction port 61 to the dehumidification rotor 62 as the dehumidification means. An air outlet 64 for blowing out the air, and two flaps 18 for efficiently supplying the air blown from the air outlet 14 to clothing, and a wind direction changing device 17 subjected to antibacterial / antifungal processing, A heating regeneration unit 66 for desorbing moisture from the dehumidifying rotor 62, a heat exchanging unit 67 for recovering the air heated by the heating unit 19 and cooling and recovering the desorbed water, and a tank 68 for collecting the collected water The infrared sensor 69 is provided on the surface of the main body.

  Next, the operation of the second embodiment will be described.

  The dehumidification rotor 62 is ventilated by the processing fan 63 and adsorbs moisture, odors and bacteria in the air. Then, it is rotated and heated by the heating regeneration means 66, moisture is desorbed from the dehumidifying rotor 62, cooled in the heat exchange device 67, becomes liquid, and is collected in the tank 68.

  In the above configuration, by providing the dehumidifying means in the air passage, dry air can be supplied to the clothing, so that the clothing can be dried more efficiently. As an example of the dehumidifying means, a dehumidifying means using a hygroscopic material is given, but a compressor may be used and a known method can be used.

  In addition, since the infrared sensor 69 is provided on the surface of the main body, it is possible to identify the undried clothing, so that the clothing can be efficiently dried by intensively sending the wind to the undried clothing. .

  In FIG. 7, the schematic diagram of the wind direction change apparatus of Embodiment 2 is shown.

  As shown in FIG. 7, the wind direction changing device 17 has a configuration in which two flaps 18 are integrated, and a stopper plate 74 as a rotation positioning means is provided on the rotating shaft 22. Since the wind direction changing device 17 is integrated with the flap 18, the number of parts can be reduced as compared with the case where the flap 18 is separated. Further, by integrating the flap 18, it is possible to eliminate a gap such as between the flap 18 and the fin 23, so that it is possible to reduce wind turbulence generated in the gap and reduce ventilation resistance.

  In addition, since the stopper plate 74 is provided as a rotation positioning means, it is possible to determine the reference of the rotational position as well as prevent over-rotation by restricting the rotation, so the wind direction changing device 17 can be set at an arbitrary angle. A fixed control is possible. Therefore, the position where the wind direction changing device 17 is reciprocated can be accurately reproduced, and drying can be performed efficiently.

  Further, by applying antibacterial and / or antifungal treatment to the wind direction changing device 17, it is possible to prevent the growth of bacteria and fungi and to keep it clean.

  Moreover, since bacteria and mold in the air can be suppressed, a clean wind can be supplied to the clothing. Although it does not specifically limit as an antibacterial material, For example, as an antibacterial agent, the inorganic compound which elutes metal ions, such as silver, copper, and zinc, the metal fine particle of silver, copper, and zinc, silver zeolite, silver containing zirconium phosphate, iodine compounds , Phenols, quaternary ammonium salts, imidazole compounds, benzoic acids, hydrogen peroxide, cresol, chlorhexidine, irgasan, aldehydes, sorbic acid and other drugs, lysozyme, cellulase, protease and other enzyme preparations, catechins, bamboo Examples include natural component extracts such as extracts, Japanese cypress extracts, wasabi extracts and mustard extracts.

  Examples of the fungicide include organic nitrogen compounds, sulfur compounds, organic acid esters, organic iodine imidazole compounds, and benzazole compounds.

  With a wind direction change device with low ventilation resistance, it is possible to supply a wide range of wind and provide a clothing drying device that can dry clothes efficiently with little energy, to household bathroom dryers, dehumidifiers, air conditioners, etc. It can be applied to other uses.

The block diagram which shows the cross section of the clothing drying apparatus of Embodiment 1 of this invention Schematic diagram of the wind direction change device Schematic diagram Schematic diagram of wind direction change device and flap Schematic diagram The block diagram which shows the cross section of the clothing drying apparatus of Embodiment 2. Schematic diagram of the wind direction change device Schematic diagram of the surface panel of a conventional clothes drying device Schematic diagram of conventional wind direction changing device

Explanation of symbols

DESCRIPTION OF SYMBOLS 11 Clothing drying apparatus 12 Main body surface panel 13 Suction inlet 14 Outlet 15 Fan 16 Heater 17 Wind direction change apparatus 18 Flap 21 Plate 22 Rotating shaft 23 Fin 23a Fin 23b Fin 23c Fin 23d Fin 32 Main body surface panel position 43a Stepping motor 43b Stepping motor 44a control means 44b control means 62 dehumidifying rotor 63 processing fan 66 heating regeneration means 67 heat exchange device 68 tank 69 infrared sensor 74 stopper plate

Claims (14)

The air passage connecting the suction port provided in the main body surface panel and the blowout port provided in the main body is provided with air blowing means, provided between the blowout port and the main body surface panel, and blown out from the blowout port. A garment drying apparatus for drying a garment by applying wind to clothing, the wind direction changing apparatus having a rotation axis in a direction perpendicular to the blowing direction, At least four fins for controlling the wind direction in the direction of the rotation axis are provided, the fins are provided so as to incline the two fins close to both ends of the rotation shaft in an opposite direction, and the rotation shaft and the fins are integrated. It is a certain configuration, and by reversing around the rotation axis, it is possible to diffuse the air flow or concentrate the air flow, and includes a plate installed between the two fins in the center, Clothes drying apparatus capable of sequestering only a central air outlet by the plate. The clothes drying apparatus according to claim 1, further comprising speed variable means capable of reciprocating at a variable speed about a rotation axis. The clothes drying apparatus according to any one of claims 1 to 2, further comprising a reciprocating angle control means capable of reciprocating at a plurality of reciprocating angles around the rotation axis. After reciprocating around the rotation axis in the state where the air is diffused, the operation of reversing around the rotation axis in the state of reversing around the rotation axis and concentrating the air is repeated alternately. The clothes drying apparatus according to any one of claims 1 to 3, wherein The clothes drying apparatus according to any one of claims 1 to 4, further comprising a regulating unit that regulates a rotation direction. The clothes drying apparatus according to any one of claims 1 to 5, further comprising positioning means for positioning after being brought into contact with the regulating means. The clothes drying device according to any one of claims 1 to 6, further comprising a flap that changes a wind direction in a rotation direction of the wind direction changing device, wherein the flap and the wind direction changing device are independently driven. The clothes drying apparatus according to any one of claims 1 to 7, wherein the fin has a curvature. The clothes drying apparatus according to any one of claims 1 to 8, wherein the wind direction changing device is accommodated inside the main body surface panel when the operation is stopped. The clothes drying apparatus according to any one of claims 1 to 9, wherein the flap is stopped at the position of the surface panel of the clothes drying apparatus when the operation is stopped. The clothes drying apparatus according to any one of claims 1 to 10, wherein an infrared sensor is provided on the main body surface panel. The clothes drying apparatus according to any one of claims 1 to 11, wherein a dehumidifying means is provided in the air passage. The clothes drying apparatus according to any one of claims 1 to 12, wherein a heating means is provided in the air passage. The clothes drying apparatus according to any one of claims 1 to 13, wherein the wind direction changing device is subjected to antibacterial and / or antifungal processing.

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