TWI810248B - Air supply device, air conditioner and dehumidifier - Google Patents

Abstract

The wind blowing direction desired by the user can be obtained by using less rotation angles. The fan blade of the present invention is rotatably supported by a shaft above the air outlet (15) of the dehumidifier (101), and separates the upper and lower fan blades (14) front and rear of the wind blown out from the air outlet (15). The surface of the upper and lower blades (14) facing the air outlet (15) is thicker at the central side than at both ends of the upper and lower blades (14) in the direction in which the air is blown out.

Description

Air supply device, air conditioner and dehumidifier

The invention relates to a fan blade for controlling wind direction, an air conditioner and a dehumidifier with the fan blade.

Conventionally, there is a dehumidifier that dehumidifies indoor air as an air conditioner. In recent years, dehumidifiers have been known that have, in addition to a dehumidification function for dehumidifying indoor air, a clothes drying function for blowing dry air to washed clothes to dry them.

However, in order to efficiently operate the dehumidification function and the laundry drying function, it is necessary to change the direction of the drying wind. For the dehumidification function, dry air must be blown toward the wall side of the room because dry air must be blown to the entire room. For the clothes drying function, dry air must be blown in the direction of hanging the clothes to be dried.

Generally, when considering indoor dehumidification, the drying wind is blown toward the wall side, and when considering drying of clothes, the drying wind is blown toward the clothes. That is, when the dehumidifier is placed on the wall of the room, the front of the dehumidifier is the direction in which the wind blows out when the clothes drying function is performed, and the rear of the dehumidifier is the direction in which the wind blows out when the dehumidification function is performed. The switching of the blowing direction of the wind is carried out by a plate-shaped fan blade provided at the outlet of the dry air (for example, the dehumidifier disclosed in Patent Document 1, the air conditioner disclosed in Patent Document 2).

Patent Document 1: Japanese Unexamined Patent Publication No. 2002-267203 (published on September 18, 2002).

Patent Document 2: Japanese Unexamined Patent Publication No. 2002-333185 (published on November 22, 2002).

However, since the blades used in conventional dehumidifiers use plate-shaped members with substantially uniform thickness, the blowing angle of the wind (inclination angle with respect to the ground) is equivalent to the rotation angle of the blades. For example, if the fan blade is rotated 90° relative to the ground, the blowing angle of the wind also becomes 90° relative to the ground.

Thus, in the case of controlling the wind direction with one flat blade, it is necessary to rotate the blade within the same range as the wind direction, and various problems arise.

For example, in order for the blades to enter the air passage during rotation depending on the wind direction, the structure in the vicinity of the air passage must be such that they do not come into contact with the blades. In addition, when this blade is used in combination with the left and right blades for separating the wind discharged from the air passage in the left and right directions, a large space is required.

Therefore, in order to obtain the blowing direction of the wind desired by the user, the conventional blade must be rotated in the same direction as the desired blowing direction. Therefore, the space near the blowing outlet for accommodating the blade has to be enlarged.

An object of one aspect of the present invention is to realize a blade capable of obtaining a blowing direction of wind desired by a user with a small rotation angle, and an air conditioner and a dehumidifier including the blade.

In order to solve the above-mentioned technical problems, the fan blade according to one aspect of the present invention is rotatably supported above the air outlet of the air blower, and separates the air blown from the air outlet from the front to the rear. The surface facing the air outlet is thicker at the central side than at both ends of the blade in the direction in which the air is blown out.

According to one aspect of the present invention, the blowing direction of the wind desired by the user can be obtained with a small rotation angle.

1: Box

2: blower (air supply device)

5: Dehumidification department

11: shell

12: Front cover

13:Back cover

14: Upper and lower fan blades (fan blades)

14e: end

14f: end

14g: Maximum thickness part

15: Blow outlet

16: Suction port

18:Operation Department

19: left and right fan blades

21: fan

22: Fan case

23: Fan motor

24: Tube (ventilation path)

30: Controller

31: Odor recovery control department

32: Fan blade driving part

33: Dehumidification drive unit

34: Fan drive unit

41: Humidity sensor

42: Temperature sensor

51: Dehumidification sink

101: Dehumidifier (air conditioner)

102: clothing

201, 202, 203, 204: upper and lower fan blades

204d, 205e: fan

Fig. 1 is an appearance perspective view showing the appearance of a dehumidifier according to a first embodiment of the present invention.

Fig. 2 is a longitudinal sectional view showing the internal structure of the dehumidifier according to the first embodiment of the present invention.

3 is a perspective view showing the appearance of each operation mode of the dehumidifier shown in FIG. 1, (a) showing the rotation state of the fan blades in the dehumidification mode, and (b) showing the rotation state of the fan blades in the clothes drying mode diagram.

Fig. 4 is an enlarged view showing the rotation state of the blade shown in Fig. 3 , (a) is an enlarged view in a dehumidification mode, and (b) is an enlarged view in a clothes drying mode.

Fig. 5 is a diagram illustrating airflow in a dehumidification mode of the dehumidifier shown in Fig. 1 .

Fig. 6 is a diagram illustrating airflow in a clothes drying mode of the dehumidifier shown in Fig. 1 .

Fig. 7 shows a fan blade included in the dehumidifier shown in Fig. 1 , (a) is a plan view, and (b) is a cross-sectional view taken along line AA of (a).

Fig. 8 shows the states of the fan blades in each operation mode in the dehumidifier shown in Fig. 1, (a) is a diagram showing the operation stopped, (b) is a diagram showing the clothes drying mode, (c) is A diagram showing the state of the fan blades in the dehumidification mode.

Fig. 9 is a diagram illustrating an air blowing range in the dehumidifier shown in Fig. 1 .

Fig. 10 is a diagram showing various shapes of blades included in a dehumidifier according to a second embodiment of the present invention.

Fig. 11 is a plan view showing an example of an operation panel included in a dehumidifier according to a third embodiment of the present invention.

Fig. 12 is a block diagram of a controller included in the dehumidifier provided with the operation panel shown in Fig. 11 .

[First Embodiment]

One embodiment of the present invention will be described in detail below. In addition, in this embodiment, the dehumidifier is taken as an example and demonstrated as an air conditioner.

(summary of dehumidifier)

FIG. 1 is a perspective view showing the appearance of a dehumidifier 101 according to this embodiment. Fig. 2 is a longitudinal sectional view showing the internal configuration of dehumidifier 101 shown in Fig. 1 . In the following description, let the left side of the dehumidifier 101 shown in FIG. 1 be a front (front), and let the right side be a back (rear).

Dehumidifier 101 is a device having a dehumidification function (dehumidification operation mode) of taking in ambient air and removing moisture contained in the air, and a clothes drying function (clothes drying mode) of blowing dehumidified air (wind) toward clothes.

As shown in FIG. 1, a dehumidifier 101 has a housing 1 as an exterior member. As shown in FIG. .

Returning to FIG. 1 , the box body 1 has a casing 11 , a front cover 12 and a back cover 13 . The case 11 is a box-shaped member having a space inside, and may be formed using sheet metal, synthetic resin, or the like, but is not limited thereto. Openings (not shown) are formed on the front and back of the casing 11 , the front cover 12 is detachably attached to the front opening, and the rear cover 13 is detachably attached to the rear opening.

The suction port 16 is provided on the back cover 13 , and the blowing port 15 is provided on the upper surface of the case 11 . The air sucked in from the suction port 16 is dehumidified and blown out from the blower port 15 . Up and down blades 14 for adjusting the direction of the blown air in the up and down direction are provided in the outlet 15 . Furthermore, left and right blades 19 for adjusting the direction of the blown air in the left and right directions are provided in the air outlet 15 . Further, the upper and lower blades 14 are rotatably pivotally supported above the air outlet 15 so that the air blown out from the air outlet 15 is divided in the front-rear direction. Here, let the front cover 12 side of the dehumidifier 101 be front, and let the back cover 13 side be rear.

In addition, in the casing 11 , the operation unit 18 is provided on the rear side near the air outlet 15 .

In addition, in the dehumidifier 101 , an air cleaning filter (not shown) may be disposed inside the back cover 13 or at the opening on the back of the housing 11 . In this case, the air passing through the suction port 16 provided in the back cover 13 is sucked into the dehumidification unit 5 through the air cleaning filter. The air cleaning filter is a filter that traps foreign matter such as fine dust and dust from the passing air. As an air cleaning filter, you can Examples include a HEPA filter (High Efficiency Particulate Air Filter) in which a nonwoven fabric is formed into paper, but are not limited thereto.

The air blower 2 includes a fan 21 , a fan case 22 , a fan motor 23 , and a pipe 24 . Here, the fan 21 is a fan that discharges air in a centrifugal direction, and when it rotates, it sucks in air from the center and generates an airflow toward the outer periphery. In addition, instead of the fan 21, a turbo fan or a high-pressure axial fan may be used.

The fan 21 is rotatably disposed inside the fan casing 22 . The fan case 22 is connected to a duct (air blowing path) 24 and has a configuration capable of blowing airflow generated in the circumferential direction of the fan 21 toward the duct 24 .

The fan 24 is attached to the output shaft of the fan motor 23 . The fan motor 23 is fixed to the fan case 22 so that the fan motor 23 is driven to rotate and the fan 21 rotates. The duct 24 guides the air flow generated by the rotation of the fan 21 to the outlet 15 .

In the pipe 24, an ion generator for adding ions to the gas flow may be arranged. In this case, the ion generator discharges in the atmosphere to generate ions. As the ion generator, a configuration in which positive ions H ⁺ (H ₂ O)m and negative ions O ²⁻ (H ₂ O)n are generated by setting m and n to arbitrary natural numbers is preferable. In this case, the positive and negative ions attach to and react on the surface of planktonic bacteria and viruses in the air, and the active species of hydroxyl (.OH) and hydrogen peroxide (H ₂ O ₂ ) can be generated on the surface to play a role in sterilization, etc. Effect.

The dehumidification unit 5 includes an evaporator and a condenser, and includes a dehumidification water tank 51 storing dehumidified water. The dehumidifier 5 condenses the moisture contained in the air by cooling the passing airflow, and removes the moisture contained in the air (dehumidification). The dehumidifier 5 is provided with a refrigeration cycle device that circulates a refrigerant and cools air by utilizing a phase change of the refrigerant. The refrigeration cycle apparatus includes a compressor, an expander, and the like, not shown, in addition to the evaporator and the condenser.

The evaporator and condenser included in the dehumidification unit 5 are heat exchangers, for example, heat exchangers using fins and tubes, but not limited thereto. The dehumidifier 5 is disposed close to the air blower 2 in the back side. As the air is sucked into the fan case 22 by the drive of the air blower 2 and sent out from the pipe 24, an airflow flowing through the gaps between the fins of the evaporator and the condenser of the dehumidification unit 5 is generated.

The evaporator cools the air flow, i.e. the air, and the condenser warms the air flow. Therefore, in the dehumidification unit 5, the evaporator is arranged on the upstream side of the airflow to cool the airflow, and the moisture in the air is condensed in the evaporator. Furthermore, the airflow cooled by the evaporator is heated by the condenser by heat exchange with the high-temperature refrigerant, and the temperature is raised to the same temperature as when it flows into the evaporator, or a higher temperature. As can be seen from the above, in the dehumidification unit 5 , the evaporator is arranged upstream of the airflow from the condenser.

The dehumidification water tank 51 is a water tank for storing water (waste water) dehumidified by the dehumidification unit 5, and can detect the amount or water level of the accumulated waste water. In the dehumidifier 101, when a certain amount of waste water accumulates in the dehumidification water tank 51, a warning is issued, and at least the dehumidification unit 5 of the dehumidifier 101 is stopped. The user takes out the dehumidification water tank 51 according to the warning, and pours out the accumulated waste water, so that the dehumidification function can be used again. In addition, in this embodiment, dehumidification is performed using a refrigeration cycle, that is, dehumidification is performed by a so-called compressor method, but it is not limited to this, and dehumidification using a desiccant that absorbs moisture in the air may also be performed. , That is, dehumidification is performed using the so-called desiccant method. In addition, dehumidification can be performed using a hybrid method that combines the compressor method and the desiccant method. Furthermore, dehumidification can also be performed using other dehumidification methods.

The housing 1 is equipped with a controller 30 , and the controller 30 controls each part of the dehumidifier 101 . The details will be described later. The controller 30 generates a control signal according to the content of the user's operation received by the operation part 18, and controls the operations of each part by the generated control signal.

Arrows shown in FIG. 2 are diagrams showing the flow of air in the dehumidifier 101 . That is, the dehumidifier 101 configured as described above is driven by the air blower 2 , sucks air from the suction port 16 , and passes through the dehumidifier 5 . The air after passing through the dehumidifier 5 is sucked by the fan 21, and passes through the pipe 24 from the air outlet. 15 blown out. The present dehumidifier 101 has two operation modes: a dehumidification mode for dehumidifying the entire room, and a laundry drying mode for drying laundry hung in the room. Here, as described above, the upper and lower blades 14 included in the dehumidifier 101 are pivotally supported above the air outlet 15 so as to be rotatable, whereby the wind blown out from the air outlet 15 is divided back and forth. That is to say, the upper and lower fan blades 14 rotate to blow dry wind in a direction suitable for each operation mode. Each operation mode is explained below.

(Dehumidification mode)

(a) of FIG. 3 shows the rotation state of the upper and lower blades 14 in the dehumidification mode, and (b) shows the rotation state of the upper and lower blades 14 in the clothes drying mode. 4( a ) shows an enlarged view of the rotation state of the upper and lower blades 14 in the dehumidification mode, and (b) shows an enlarged view of the rotation state of the upper and lower blades 14 in the clothes drying mode. Fig. 5 shows the air flow in the dehumidification mode.

As shown in (a) of FIG. 5 , when the dehumidifier 101 is placed near the wall of a room, the airflow when dehumidifying the entire room is preferably along the wall, ceiling, and floor. That is, the wind blown from the dehumidifier 101 flows along the wall (1), the ceiling (2), the wall (3), and the floor (4). In this case, the dehumidifier 5, as shown in (b) of FIG. Coanda effect, so flows along walls (1), ceiling (2), walls (3), floor (4).

Therefore, in the case where the back cover 13 side of the dehumidifier 101 is the wall side of the room, in the dehumidification mode, as shown in FIG. 3(a) and FIG. 4(a), the upper and lower blades 14 rotate to Wind is blown toward the back cover 13 side. That is, the upper and lower blades 14 are rotated toward the front cover 12 so that the air outlet 15 is opened on the back cover 13 side.

At this time, the angle of the blown wind is preferably 20° relative to the ground. This state is referred to as tilting the upper and lower blades 14 backward by 20°. However, this angle is not limited to 20°, and may be changed according to the shape and size of the room if the Coanda effect can be obtained.

In addition, as shown in (c) of Figure 5, if the left and right fan blades 19 arranged in the air outlet 15 are adjusted so that the wind blows out to the left and right, the wind blown from the dehumidifier 101 will expand to the left and right, so the dehumidification The resulting air is easily diffused throughout the room. In other words, dehumidification can be performed efficiently.

In this way, the upper and lower fan blades 14 are used to make the airflow obliquely 20° and blow towards the back wall, and the dehumidified air along the wall and ceiling is generated by the Coanda effect, thereby avoiding the living space of people and reaching All corners of the room are dehumidified evenly and energy-efficiently.

Moreover, since the air blown from the dehumidifier 101 contains ions, the dehumidified air containing ions along the walls can also obtain the effect of inhibiting the mold attached to walls and ceilings, which was insufficient for conventional dehumidifiers. At the same time, by dehumidifying the air along the windows, it is possible to deal with condensation in winter without moving the dehumidifier.

In addition, when blowing to the rear, since the upper and lower fan blades 14 can generate a 20° backward airflow without being too inclined, it has the advantage of not covering the display in front of the product, so it also increases the product design. The effect of degrees of freedom.

(clothes drying mode)

Fig. 6 shows the air flow in the dehumidification mode.

As shown in FIG. 6 , when the dehumidifier 101 is arranged near the wall of the room, it is preferable to directly blow the wind dehumidified by the dehumidifier 101 to the washed clothes 102 hanging in the center of the room. In this case, as shown in FIG. 6 , the dehumidifier 101 adjusts the upper and lower fan blades 14 so that the front cover 12 side of the air outlet 15 of the dehumidifier 101 is opened so that the air is blown forward, that is, towards the clothes 102 .

Therefore, when the side of the back cover 13 of the dehumidifier 101 is the wall side of the room, in the clothes drying mode, as shown in FIG. 3(b) and FIG. 4(b), the upper and lower blades 14 rotate. To blow the wind toward the front cover 12 side. That is, the upper and lower blades 14 are rotated toward the back cover 13 so that the air outlet 15 is opened on the front cover 12 side.

In order to dry the clothes 102 efficiently, it is necessary for the wind to blow directly on the clothes 102 . For this reason, the upper and lower fan blades 14 are adjusted up and down so that the wind blows on the clothes 102 . At this time, adjust the left and right fan blades 19 so that the blown wind will not spread.

As described above, the dehumidification mode and the clothes drying mode can be switched by changing the rotation state of the upper and lower blades 14 without changing the installation position of the room of the dehumidifier 101 .

(the shape of fan blade 14 up and down)

(a) and (b) of FIG. 7 show an example of the shape of the upper and lower blades 14 . That is, as shown in (a) and (b) of FIG. 7 , the upper and lower blades 14 are plate-shaped members having a substantially triangular cross-section. In the cross-sectional shape of FIG. 7(b), the lengths of the three surfaces (surface 14a, surface 14b, and surface 14c) are 14a>14b>14c. Here, when the angle between the surface 14a and the surface 14b is θ1, and the angle between the surface 14a and the surface 14c is θ2, there is a relationship of θ1>θ2. The upper and lower blades 14 are installed in the dehumidifier 101 so that the surface 14a is located on the upper surface of the dehumidifier 101, the surface 14b is located on the front cover 12 side, and the surface 14c is located on the back cover 13 side. The upper and lower blades 14 are thinner at the front and rear ends (end 14e and end 14f sides) in the wind blowing direction, thicker at the center, and have the thickest maximum thickness portion 14g at the center. In addition, the surfaces facing the air outlets 15 of the upper and lower blades 14 (referred to as surfaces 14b and 14c) are from the front cover 12 and the back cover 13 toward the above-mentioned maximum thickness portion 14g (equivalent to extending downward from the apex 14d of the triangle). The length of the perpendicular to the surface 14a) is an inclined plane (inclined surface).

Also, since the upper and lower blades 14 have a relationship of θ1>θ2, the intersection of the surface 14b and the surface 14c, that is, the position of the apex 14d of the triangle is biased towards the surface 14b side. In this embodiment, the vertex 14d of the above-mentioned triangle is biased toward the front cover 12 side.

In addition, the cross-sectional shape of the upper and lower blades 14 is not limited to the above-mentioned triangular shape. That is, in the surfaces (surfaces 14b, 14c) facing the air outlets 15 of the upper and lower blades 14, as long as the central side is thicker than the two ends (ends 14e, 14e, The end portion 14f) needs to be thick. Specifically, on the surface (surface 14b, surface 14c) opposite to this blower outlet 15, the most Thick maximum thickness part 14g. Therefore, the surface 14b is an inclined surface inclined from the end portion 14e toward the apex 14d of the maximum thickness portion 14g, and the surface 14c is an inclined surface inclined from the end portion 14f toward the apex 14d of the maximum thickness portion 14g. Furthermore, the apex 14d which is the intersection part which intersects the surface (surface 14b, surface 14c) which opposes this blower outlet 15 is deviated to the side of the end part 14e. Further, the maximum thickness portion 14g is located on the side of the end portion 14e, which is one end portion, from the middle position O of a virtual line X that straightly connects the end portions 14e and 14f. In addition, the direction in which the apex 14d deviates and the direction in which the intermediate position O deviates may be deviated toward the end portion 14f side depending on the application of the upper and lower blades 14 . If the shape satisfies such conditions, the upper and lower blades 14 may have any cross-sectional shape. Other shapes of the upper and lower blades 14 will be described in Embodiment 2 described later.

Here, when the blade end angle θ is large, the wind can be blown upward with a small rotation, so that the wind can be applied to the entire clothing installed above the vicinity of the blower, for example. In other words, suitable for clothes drying. In addition, since the longer the distance of the inclined surface of the fan blade, the longer the time and distance for the wind from the air outlet to follow the inclined surface, the more stable the blowing direction of the wind is. In other words, since the wind at a certain angle can be maintained, it is easy to create a circulating air flow, and efficient air cleaning and dehumidification can be performed. Therefore, the end 14e of the upper and lower blades 14 shown in (b) of FIG. 7 turns upward in the clothes drying mode, and the end 14f turns upward in the dehumidification mode. The operation of the upper and lower blades 14 will be described below.

(action of upper and lower fan blades 14)

(a) of FIG. 8 shows the state of the fan blade when the operation is stopped, (b) shows the state of the fan blade in the dehumidification mode, and (c) shows the state of the fan blade in the clothes drying mode. FIG. 9 is a diagram for explaining the air blowing range of the clothes drying mode of the upper and lower blades 14 .

When the dehumidifier 101 stops running, as shown in (a) of Figure 8, the upper and lower fan blades 14 rotate in such a way that the air outlet 15 is closed. 15 Rotate the upper and lower fan blades 14 in such a way that the operation part 18 side (back cover 13 side) opens, when the clothes drying mode At this time, as shown in FIG. 8( c ), the upper and lower blades 14 rotate so that the air outlet 15 opens on the front cover 12 side.

Here, in the dehumidification mode, as shown in (b) of FIG. 8 , the surfaces 14c on the back cover 13 side of the upper and lower blades 14 are rotated upward so that dry air is blown toward the back cover 13 side, that is, the wall side of the room. . In this case, the rotation angle of the upper and lower fan blades 14 is preferably 20° backward. The back slope of 20° is an inclination angle of 20° upwardly toward the wall side with respect to the floor. With this angle, the wind after dehumidification becomes the airflow that circulates from the wall to the ceiling, and further, from the ceiling to the wall and the floor, and can efficiently dehumidify the entire room. In addition, the inclination angle is not limited to 20°. For example, the inclination angle may be changed according to the installation position of the dehumidifier 101, the structure of the room where the dehumidifier 101 is installed, or the like.

On the other hand, when in the clothes drying mode, as shown in (c) of FIG. 8 , the face 14b on the front cover 12 side of the upper and lower fan blades 14 rotates upwards so that the side facing the front cover 12, that is, the wall side of the room is opposite to Blow dry air from the side. The clothes drying mode is different from the dehumidification mode, and the drying air must be efficiently blown to a predetermined position. In this case, as shown in FIG. 9 , the air blowing range is between the tangent line X of the surface 14b of the upper and lower blades 14 when the operation is stopped, and the tangent line Y of the surface 14b of the upper and lower blades 14 in the clothes drying mode. In this clothes drying mode, the tangent Y to the surfaces 14b of the upper and lower blades 14 is substantially vertical.

The upper and lower fan blades 14, as shown in (b) of FIG. 7 , since the angle θ 1 on the side of the front cover 12 is larger than the angle θ 2 on the side of the back cover 13, when the upper and lower blades 14 are rotated in an upward manner with the side of the surface 14b, they can be rotated more easily. When the turning angle is small when the surface 14c is turned sideways, the tangent line Y becomes substantially vertical. Therefore, when the surfaces 14b of the upper and lower blades 14 are turned upward, the left and right blades 19 provided in the air outlet 15 can be prevented from interfering with the surfaces 14c of the upper and lower blades 14 . Therefore, since the space in the air outlet 15 can be made small, the dimension of the up-down direction of the vicinity of the air outlet 15 of the dehumidifier 101 can be made small.

In this way, by having the upper and lower fan blades 14 with a thick cross-section in a substantially triangular shape (substantially V-shaped), the wind can be moved to the upper side that is beneficial to the drying of the clothes. Since the area where the vane 14 enters the pipe 24 from the outlet 15 is also reduced, space saving of the product outlet 15 can be achieved.

In addition, the shape of the left and right fan blades 19 for controlling the wind direction left and right is also used to make the rear side of the product concave, avoiding interference with the upper and lower fan blades 14, and can further save space. Moreover, since the apex of the upper and lower fan blades 14 is close to the front of the product (front cover 12), the apex comes to a position offset from the air path when blowing backwards, so it is not easy to lose pressure and can dehumidify with low noise and high efficiency operate.

(Effect)

In the dehumidifier 101 configured as described above, the surfaces (surfaces 14b, 14c) of the upper and lower blades 14 facing the air outlets are inclined from the front and rear end sides in the blowing direction of the wind toward the rotation center side of the upper and lower blades 14. The inclined surface, whereby the wind flows along the inclined surface and blows out. Thereby, if the rotation angles of the upper and lower blades 14 are the same, the blowing direction of the wind blown from the upper and lower blades 14 is 30° from the surface (surface 14b, surface 14c) opposite to the outlet 15 of the upper and lower blades 14. The case of the plane of the non-inclined face is upward.

And, if the inclination angle of the inclined surface is increased, then only in that way, the blowing direction of the wind can be changed with a small rotation angle.

In addition, since the upper and lower blades 14 have a relationship of θ1>θ2, the point where the surface 14b and the surface 14c intersect, that is, the position of the apex of the triangle is shifted toward the surface 14b side. In this embodiment, the apex of the above-mentioned triangle is biased toward the front cover 12 side. Thereby, if the rotation angles of the upper and lower blades 14 are the same, the blowing direction of the wind blown from the inclined surface (surface 14b) with a large inclination angle can be directed upward relative to the inclined surface (surface 14c).

Therefore, the air flow can be switched between the rear direction (back cover 13 side) and the front direction (front cover 12 side) by reversing the upper and lower blades 14, and by having a thickness at the rotation center of the upper and lower blades 14, general The upward air flow control is required as the dehumidifier 101 .

In addition, as mentioned above, when the blowing range of the wind is the same, as long as the rotation angle of the upper and lower blades 14 can be reduced as much as possible, as shown in (b) of FIG. The configuration of the lower blade 14 is not limited to a substantially triangular shape in cross section, and it may be thicker at the central portion and thinner at the wind blowing side in the cross-sectional shape. In the following second embodiment, other shapes of the upper and lower blades will be described.

[Second Embodiment]

Other embodiments of the present invention will be described below. In addition, for convenience of description, members having the same functions as those described in the above-mentioned embodiments are denoted by the same reference numerals, and the description thereof will not be repeated.

(shape of fan blade/detachable)

Fig. 10 shows schematic configurations of various blades according to this embodiment, (a) to (c) are sectional views, and (d) and (e) are plan views.

In the upper and lower blades 14 shown in FIG. 7(b) of the first embodiment, the surfaces 14b and 14c are planes, the angle between the surfaces 14a and 14b is θ1, and the angle between the surfaces 14a and 14c is θ1. When the angle of is θ 2, it has the relationship of θ 1>θ 2.

In contrast, in the upper and lower blades 201 shown in (a) of FIG. 10 , the surfaces 201b and 201c are inclined surfaces, the angle between the surfaces 201a and 201b is θ1, and the angle between the surfaces 201a and 201c is θ1. When the angle is θ 2, there is a relationship of θ 1 = θ 2. Here, the surface 201 a , the surface 201 b , and the surface 201 c correspond to the surface 14 a , the surface 14 b , and the surface 14 c of the upper and lower blades 14 . When the upper and lower blades 201 are mounted on the dehumidifier 101, wind can be blown in the same direction at the same rotation angle on the front cover 12 side and the rear cover 13 side.

As the upper and lower blades of other shapes, as shown in (b) of FIG. 10 , the upper and lower blades 202 in which the surface 202b is a curved surface and the surface 202c is an inclined plane may be used. Here, the surface 202 a , the surface 202 b , and the surface 202 c correspond to the surface 14 a , the surface 14 b , and the surface 14 c of the upper and lower blades 14 .

As another shape of the upper and lower blades, as shown in (c) of FIG. The surface 203d of the fan blade 203 has a substantially trapezoidal cross section. Here, the surface 203 a , the surface 203 b , and the surface 203 c correspond to the surface 14 a , the surface 14 b , and the surface 14 c of the upper and lower blades 14 .

In this way, the upper and lower blades may have any shape as long as the cross-sectional shape is thicker at the central portion and thinner at the wind blowing side.

In addition, in this first embodiment, although the left and right blades 19 are used to adjust the blowing direction of the wind in the left and right directions, as shown in (d) and (e) of FIG. Fins 204d and 204e are provided on the inner surface of 204 (the surface 204c and the surface 204b facing the outlet 15). The fins 204d are formed to expand on the back side surface 204c of the upper and lower blades 204, so that the wind is blown out on the back cover 13 side, and the fins 204e are formed to be parallel to the blowing direction on the front surface 204b of the upper and lower blades 204. , to blow out wind without expanding at the front cover 12 side.

Therefore, if the upper and lower blades 204 shown in (d) and (e) of FIG. Exit 15 space. Thereby, the dimension of the up-down direction of a dehumidifier can also be reduced by the amount equivalent to installing the left and right fan blades 19 .

The upper and lower fan blades of the above various configurations may also be installed on the dehumidifier 101 in a detachable manner. Thereby, the user can replace the upper and lower fan blades according to the purpose of use.

In addition, in the first embodiment and the second embodiment, the shape and operation of the upper and lower blades will be mainly described. In the following third embodiment, the odor recovery control in the case of using the clothes drying mode of the dehumidifier 101 of the first embodiment and the second embodiment will be described.

[Third Embodiment]

Other embodiments of the present invention will be described below. In addition, for convenience of description, members having the same functions as those described in the above-mentioned embodiments are denoted by the same reference numerals, and the description thereof will not be repeated.

Generally speaking, when the clothes are dried by a dehumidifier, the clothes absorb the moisture in the room again, bacteria multiply, and produce unpleasant odors. This phenomenon is called odor recovery.

In the present embodiment, the dehumidifier described in the first embodiment and the second embodiment is used to describe the odor recovery control that does not cause the odor recovery when the clothes are dried.

(operation department)

FIG. 11 shows an operation surface that is operated by a user mounted on the operation unit 18 of the dehumidifier 101 shown in FIG. 1 .

As shown in FIG. 11 , the operation unit 18 includes various operation buttons for a timer, left and right swings, vertical swings, convenience functions, clothing, dehumidification, anti-mold, and the like. Odor recovery control is performed by pressing the button of the clothes and being in the clothes drying mode, operating the button of the convenience function, and selecting the countermeasure for the odor recovery. In this way, by operating the operation unit 18, a control signal according to the user's operation content is generated, and the operation of each part is controlled by the generated control signal.

(odor recovery control)

FIG. 12 is a functional block diagram of the controller 30 that receives the operation of the operation unit 18 .

The controller 30 includes an odor recovery control unit 31 , a blade driving unit 32 , a dehumidification driving unit 33 and a fan driving unit 34 .

The odor recovery control unit 31 is further connected to the operation unit 18 , the humidity sensor 41 and the temperature sensor 42 . That is, when the odor recovery control part 31 receives the control signal for performing the control of the odor recovery through the operation part 18, the humidity detected by the humidity sensor 41 and the temperature detected by the temperature sensor 42 are used to The rotation control of the upper and lower blades 14 is performed by the blade drive unit 32 , the dehumidification control of the dehumidification unit 5 is performed by the dehumidification drive unit 33 , and the rotation control of the fan motor 23 is performed by the fan drive unit 34 . Thereby, the odor recovery control unit 31 executes the odor recovery control.

In the odor return control, after the clothes are dried in the clothes drying mode, the air is controlled to be applied to the dried clothes. Thereby, it is possible to prevent re-absorption of moisture to the dried clothes, and to kill bacteria adhering to the dried clothes.

Specifically, odor recovery control is performed as in the following (1) to (6).

(1) After the laundry is dried, only the wind is continued to be applied to the dry laundry. In this case, the humidity in the room is detected by the humidity sensor 41, and the clothes drying mode is ended when the detected humidity is lower than a predetermined value, and the dried clothes are continued to be dried from the time when the clothes drying mode ends to a predetermined time. The way of applying wind gives an instruction to the fan drive unit 34 to continue driving the fan motor 23 . At this time, the dehumidification drive unit 33 stops the dehumidification of the dehumidification unit 5 . Here, after the one-hour laundry drying time has elapsed, the air blowing is continued for one hour.

Here, since the air volume when the clothes are dried is set to the maximum air volume that can be set by the dehumidifier 101, the air volume during the odor recovery control is still maintained at the maximum.

(2) The air volume after drying the clothes can be changed according to the humidity. That is, instead of directly maintaining the air volume when the clothes are dried, the air volume during the odor recovery control can be changed according to the detection result of the humidity sensor 41 . In this case, if the smell recovery control unit 31 judges that the humidity is higher than the specified value according to the detection result of the humidity sensor 41, it will increase the air volume; The fan drive unit 34 controls the drive of the fan motor 23 by giving an instruction.

(3) Alternately switch the wind direction of the dry air blown out during odor recovery control between wide (wide area) and narrow (narrow area: concentrated on one point). In this case, the dehumidifier 101 can be performed by driving the left and right fan blades 19 . In this way, by alternately switching the wind direction between wide and narrow, the strength of the wind applied to the clothes can be changed to cause the clothes to fluctuate, thereby promoting drying.

(4) When only wind is continuously applied to dry clothes during odor recovery control, dehumidification operation is performed when the humidity rises. In this case, when the humidity sensor 41 detects a humidity higher than a predetermined value, the odor recovery control unit 31 instructs the dehumidification drive unit 33 to execute the dehumidification operation by the dehumidification unit 5 .

(5) Detect the temperature during the odor recovery control, and concentrate on blowing air to the low-temperature parts below the specified temperature. In this case, the odor recovery control unit 31 detects the temperature of each area around the dried clothes by the temperature sensor 42, and sends air to the fan drive unit 34, the fan drive unit 34, and the fan drive unit 34 in a manner that concentrates air on areas below a predetermined temperature. The blade driving unit 32 gives an instruction to drive the fan motor 23 , the upper and lower blades 14 , and the left and right blades 19 .

(6) During the odor recovery control, the air is supplied according to the upper, middle, lower, and left and right areas, and the air is supplied centrally to the areas with humidity higher than the specified value. In this case, the odor recovery control unit 31 divides the space containing the dried clothes into a plurality of areas, and sends air to the fan blade driving unit 32 and the fan driving unit 34 in a manner of blowing air to each of the divided areas. Indicates to drive the upper and lower fan blades 14, the left and right fan blades 19 and the fan motor 23.

(Effect)

With the above-mentioned configuration, in the dehumidifier 101, the odor recovery control unit 31 executes the above-mentioned odor recovery control after the clothes are dried, thereby preventing the clothes from absorbing the moisture in the room again, and by killing the existing Bacteria on clothes can eliminate unpleasant odor of clothes after drying.

In the first to third embodiments, an example in which the fan blade of the present invention is mounted on a dehumidifier which is one type of an air conditioner has been described, but it is not limited thereto and may be mounted on an air cleaner. , dehumidification air cleaners and other air conditioners. Therefore, the fan blade of the present invention can be fully applied to a device equipped with a function of blowing out wind, such as an air conditioner, that is, an air blower.

[Example using software]

The control block of the dehumidifier 101 (especially the odor recovery control unit 31 ) can be realized by a logic circuit (hardware) formed on an integrated circuit (IC chip) or the like, and can also be realized by software.

In the latter case, the dehumidifier 101 has a computer that executes commands that are software programs that realize various functions. The computer has, for example, at least one processor (control device), and at least one computer-readable recording medium storing the above-mentioned program. In addition, in the above-mentioned computer, the object of the present invention is achieved by reading and executing the above-mentioned program from the above-mentioned recording medium by the above-mentioned processor. As the processor, for example, a CPU (Central Processing Unit) can be used. As the above-mentioned recording medium, "non-transitory tangible medium" can be used, for example, besides ROM (Read Only Memory), tape, disk, card, semiconductor memory, programmable logic circuit, etc. can be used. In addition, a RAM (Random Access Memory) for developing the above-mentioned programs may be further included. In addition, the program may be supplied to the computer via any transmission medium (communication network, broadcast wave, etc.) capable of transmitting the program. In addition, an aspect of the present invention can also be realized by means of a data signal carried in a carrier wave to realize the above-mentioned program by electronic transmission.

〔Summarize〕

The fan blades (upper and lower fan blades 14) of the first aspect of the present invention are rotatably supported above the outlet 15 of the air blower (dehumidifier 101), and separate the air blown from the outlet 15 from the front to the rear. It is characterized in that the surfaces (surfaces 14a, 14b) of the blade facing the air outlet 15 are thicker at the central side than at both ends of the blade (upper and lower blades 14) in the direction of blowing air.

According to the above structure, since the thickness of the surface facing the air outlet of the blade is thicker at the central side than at the front and rear ends in the direction in which the wind blows out, the wind flows from the thicker portion toward the thinner portion of the blade. Thereby, the blowing direction of the wind blown from the blade is upward compared with the case where the thickness of the surface facing the outlet of the blade is uniform.

Thereby, the blowing direction of the wind desired by the user can be obtained with a small rotation angle.

In the fan blade of the second aspect of the present invention, in the above-mentioned first aspect, the surface (surface 14a, surface 14b) opposite to the air outlet 15 has the thickest maximum thickness portion, and has At least one end portion of the portion is inclined toward the plane of the maximum thickness portion.

According to the above structure, since the surface facing the air outlet is a plane (inclined surface) inclined from the front and rear ends in the air blowing direction toward the maximum thickness portion side, the wind flows along the inclined surface and is blown out. Thereby, the blowing direction of the wind blown from the blade is upward compared with the case where the surface of the blade facing the blowing port is not an inclined surface.

And, if the inclination angle of the inclined surface becomes large, then only in that way, the blowing direction of the wind can be changed with a small rotation angle.

In the fan blade according to the third aspect of the present invention, in the above-mentioned second aspect, the fan blade formed on the surface (surface 14a, surface 14b) opposite to the air outlet 15, from one end of the two ends toward the The intersection of the inclined surface of the maximum thickness portion and the inclined surface from the other end portion of the two end portions toward the maximum thickness portion is biased toward either end portion side of the two end portions.

According to the above-mentioned configuration, by forming the inclined surface from one end of the two ends toward the maximum thickness portion and the other end of the two ends toward the maximum thickness formed on the surface facing the outlet 15, The intersecting part where the inclined surfaces of the two parts intersect is biased toward any end part side of the above-mentioned two ends, and the inclination angles of the two inclined surfaces inclined toward the maximum thickness part from the front and rear end sides in the blowing direction of the wind can be made different.

Thereby, if the rotation angle is the same, the blowing direction of the wind blown from the inclined surface with a large inclination angle can be made upward.

An air conditioner according to a fourth aspect of the present invention is characterized in that it includes the blade (upper and lower blades 14 ) according to any one of the above-mentioned first to third aspects.

According to the above configuration, the blowing direction of the wind desired by the user can be obtained with a small rotation angle.

In the air conditioner of the fifth aspect of the present invention, in the air conditioner of the fourth aspect, the above-mentioned fan blades (upper and lower fan blades 14) are provided to be detachable from the main body of the air conditioner (dehumidifier 101).

According to the above configuration, the user can replace the blade according to the usage.

A dehumidifier according to a sixth aspect of the present invention is characterized in that it includes the blade (upper and lower blades 14 ) according to any one of the above-mentioned first to third aspects.

According to the above configuration, the blowing direction of the wind desired by the user can be obtained with a small rotation angle.

In the dehumidifier according to the seventh aspect of the present invention, in the dehumidifier according to the sixth aspect, the blades (upper and lower blades 14) may be provided so as to be detachable from the main body of the air conditioner (dehumidifier 101).

According to the above configuration, the user can replace the blade according to the usage.

The present invention is not limited to the above-mentioned embodiments, and various changes can be made within the range indicated in the patent claims. Embodiments obtained by appropriately combining technical methods disclosed in different embodiments are also included in the technical scope of the present invention. Inside. Furthermore, new technical features can be formed by combining the technical means respectively disclosed in each embodiment.

2: blower (air supply device)

5: Dehumidification department

12: Front cover

13:Back cover

14: Upper and lower fan blades (fan blades)

15: Blow outlet

16: Suction port

18:Operation Department

19: left and right fan blades

21: fan

22: Fan case

23: Fan motor

24: Tube (ventilation path)

51: Dehumidification sink

101: Dehumidifier (air conditioner)

Claims (5)

An air supply device, comprising: a box body; an air outlet formed on the upper surface of the box body; and an upper and lower air blower that is rotatably supported above the air outlet to separate the air blown upward from the air outlet. fan blades; and the left and right fan blades in the left and right directions for adjusting the wind direction of the blown air provided in the blowing outlet, it is characterized in that there are also the upper and lower fan blades on the surface opposite to the blowing outlet. Compared with both ends in the front-rear direction, the thickness of the central side is thicker and is the thickest maximum thickness portion, and the intersection portion of the upper and lower blades is more forward than the central portion of the upper and lower blades in the front-rear direction. The intersecting portion is formed on the surface facing the air outlet, and the intersecting portion is the first inclined surface from the front end of the upper and lower blades toward the maximum thickness portion and the first inclined surface from the rear end of the upper and lower blades. The upper and lower fan blades can rotate between the first state and the second state. In the first state, the first inclined surface is located at a lower position The air outlet is opened in such a way that the outlet is closer to the front side and the second inclined surface extends from the intersecting portion upward to the rear portion, and in the second state, the first inclined surface extends upward from the intersecting portion to the front and upward The air outlet is opened, and the second inclined surface is opposite to the air outlet in a manner extending from the intersecting portion downward to the rear portion, and the second inclined surface can avoid the left and right fan blades. An air conditioner comprising the air blower described in Claim 1. The air conditioner according to claim 2, wherein the upper and lower fan blades are arranged to be detachable from the air conditioner body. A dehumidifier comprising the air blower described in Claim 1. The dehumidifier according to claim 4, wherein the upper and lower fan blades are arranged to be detachable from the main body of the dehumidifier.