JP7329730B2 - blower - Google Patents

Description

TECHNICAL FIELD The present invention relates to an air blower, and more particularly to an air blower capable of adjusting the blowing direction of airflow.

A conventional air conditioner has a movable louver at an airflow outlet, and changing the angle of the louver changes the direction of the airflow blown from the outlet (for example, Patent Document 1). .

JP-A-6-193900

However, the movable louver cannot be moved vertically downward or horizontally, and there is a problem that the blowing range of the airflow blown out from the outlet is limited to less than 90 degrees.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above problems, and to provide an air blower capable of adjusting the blowing direction of an airflow without using a movable louver.

To achieve this object, the blower device of the present invention includes a housing, a first air outlet, a second air outlet, a first air volume adjustment section, and a second air volume adjustment section. The first air outlet is formed on the first surface of the housing and blows out the first airflow along the first surface toward the first side of the housing. The second air outlet is formed on the second surface of the housing that is in contact with the first surface at the first side, and blows out the second airflow toward the first side along the second surface. The first air volume adjustment unit adjusts the volume of the first airflow blown out from the first outlet. The second air volume adjustment unit adjusts the air volume of the second airflow blown out from the second outlet. The first airflow whose air volume is adjusted by the first air volume adjustment unit and the second air current whose air volume is adjusted by the second air volume adjustment unit collide in the vicinity of the first side, and move away from the first side. Send a third air stream toward the

ADVANTAGE OF THE INVENTION According to the air blower of this invention, the blowing direction of an airflow can be adjusted, without using a movable louver.

FIG. 1 is a schematic configuration diagram of an air blower according to one embodiment of the present invention. FIG. 2 is a schematic cross-sectional view of the cross section of the blower as viewed from the left side. FIG. 3 is a control block diagram of the blower. FIG. 4(a) is a schematic diagram schematically showing the degree of opening of the first damper and the second damper when the airflow is sent out in the vertical direction from the first side of the blower, and FIG. ) is a schematic diagram schematically showing the degree of opening of the first damper and the second damper when an airflow is sent out in the horizontal direction from the first side of the blower.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, embodiments for carrying out the present invention will be described with reference to the accompanying drawings. It should be noted that each of the embodiments described below is a preferred specific example of the present invention. Therefore, numerical values, shapes, materials, constituent elements, arrangement positions of constituent elements, connection forms, and the like shown in the following embodiments are examples and are not intended to limit the present invention. Therefore, among the constituent elements in the following embodiments, the constituent elements not described in the independent claims representing the highest concept of the present invention will be described as optional constituent elements. Moreover, in each figure, the same code|symbol is attached|subjected to the substantially same structure, and the overlapping description is abbreviate|omitted or simplified.

First, with reference to FIGS. 1 to 3, a schematic configuration of a blower device 10 according to one embodiment of the present invention will be described. FIG. 1 is a schematic perspective view of the blower 10. FIG. FIG. 2 is a schematic cross-sectional view of the blower 10 as viewed from the left side. FIG. 3 is a control block diagram of the blower 10. As shown in FIG. In addition, in the following description, the surface of the blower device 10 viewed from the arrow F shown in FIG. 1, that is, the surface on which the first outlet 12 described below is provided is referred to as the front surface 11a.

The blower 10 is a device that has a rectangular housing 11 and sends out a third airflow 23 in a direction away from the first side 11c of the housing 11 . Specifically, it is as follows.

The housing 11 of the blower 10 is provided with a slit-shaped first outlet 12 on the front face 11a side, and a slit-shaped first outlet 12 on the bottom face 11b side that contacts the front face 11a at the first side 11c. Two outlets 13 are provided. The long sides of the slits of the first outlet 12 and the second outlet 13 are formed along the first side 11c. Further, the front surface 11a and the bottom surface 11b are substantially perpendicular to each other at the first side 11c. In addition, the front surface 11a corresponds to the first surface of the present invention, and the bottom surface 11b corresponds to the second surface of the present invention.

The first air outlet 12 is an air outlet that blows out the first airflow 21 toward the first side 11c of the housing 11 along the front surface 11a. The second air outlet 13 is an air outlet that blows out the second airflow 22 toward the first side 11c of the housing 11 along the bottom surface 11b.

Here, the first outlet 12 and the second outlet are arranged such that the distance from the first outlet 12 to the first side 11c and the distance from the second outlet 13 to the first side 11c are substantially the same. An outlet 13 is formed. Here, the substantially same distance means that the strength of the first airflow 21 on the first side 11c and the strength of the second airflow 22 when the airflows of the same air volume are blown out from the first outlet 12 and the second outlet 13. It is the distance at which the strength is approximately the same.

A suction port 14 is provided on each of the upper surface (flat surface), the right side, the left side, and the rear surface of the housing 11 . A scroll casing 16 is provided inside the housing 11 , and a blower fan 15 is provided in the scroll casing 16 . The blower fan 15 is configured by, for example, a sirocco fan.

Air sucked from the suction port 14 is supplied to the inside of the blower fan 15 . A motor (not shown) for rotating the blower fan 15 is connected to the blower fan 15, and by rotating the motor, the blower fan 15 rotates clockwise in FIG. As a result, the air supplied to the inside of the blower fan 15 is blown out from the inside of the blower fan 15 to the outside, and in FIG. flow occurs.

Inside the housing 11 , a first air guide path 17 that communicates with the first outlet 12 is connected to the outer periphery of the scroll casing 16 . The first air guide path 17 guides air from the scroll casing 16 to the first outlet 12 . The first air guide path 17 is provided in parallel with the bottom surface 11 b from the scroll casing 16 to the middle of the first outlet 12 . Then, the first air guide path 17 extends along the first side near the first outlet 12 so that the first airflow 21 from the first outlet 12 is blown out along the front surface 11a toward the first side 11c. It is bent toward the 11c side.

A second air guide path 18 communicating with the second outlet 13 is connected to the outer periphery of the scroll casing 16 inside the housing 11 . The second air guide path 18 guides air from the scroll casing 16 to the second outlet 13 . The second air guide path 18 is provided in parallel with the front surface 11a from the scroll casing 16 to the middle of the second outlet 13 . Then, the second air guide path 18 extends along the first side near the second outlet 13 so that the second airflow 22 from the second outlet 13 is blown out along the bottom surface 11b toward the first side 11c. It is bent toward the 11c side.

A first damper 19 is provided at a connection point between the scroll casing 16 and the first air guide path 17, and a second damper 20 is provided at a connection point between the scroll casing 16 and the second air guide path 18. there is

The first damper 19 adjusts the amount of air guided from the scroll casing 16 to the first air guide path 17, and corresponds to the first air amount adjusting section of the present invention. That is, when the opening degree of the first damper 19 is increased, the amount of air guided from the scroll casing 16 to the first air guide passage 17 is increased, and when the opening degree of the first damper 19 is decreased, the flow rate is increased from the scroll casing 16 to the first air guide passage 17. 1. The amount of air guided to the air guide path 17 is reduced.

Since the first air guide path 17 communicates with the first blowout port 12 as described above, the amount of air guided through the first air guide path 17 is adjusted to blow out from the first blowout port 12. The air volume of the first airflow 21 to be applied is adjusted. That is, it can be said that the first damper 19 adjusts the air volume of the first airflow 21 blown out from the first outlet 12 .

The second damper 20 adjusts the amount of air guided from the scroll casing 16 to the second air guide path 18, and corresponds to the second air amount adjusting section of the present invention. That is, when the degree of opening of the second damper 20 is increased, the amount of air guided from the scroll casing 16 to the second air guide passage 18 increases, and when the degree of opening of the second damper 20 is decreased, the amount of air from the scroll casing 16 increases. Second, the amount of air guided to the air guide path 18 is reduced.

Since the second air guide path 18 communicates with the second outlet 13 as described above, the amount of air that is guided through the second air guide path 18 is adjusted to blow out from the second outlet 13. The air volume of the second airflow 22 to be applied is adjusted. That is, it can be said that the second damper 20 adjusts the air volume of the second airflow 22 blown out from the second outlet 13 .

A controller 30 is provided in the housing 11 . The control unit 30 is connected to the blower fan 15 as shown in FIG. 3 and controls the rotation operation of the blower fan 15 . Also, the control unit 30 is connected to the first damper 19 and the second damper 20 and controls the degree of opening of the first damper 19 and the degree of opening of the second damper 20 . The control unit 30 controls the rotational operation of the blower fan 15, the degree of opening of the first damper 19, and the degree of opening of the second damper 20, thereby controlling the air volume of the first airflow 21 blown out from the first outlet 12. and the air volume of the second airflow 22 blown out from the second outlet 13 are controlled to control the direction in which the third airflow 23 moves away from the first side 11c as will be described later.

Next, the operation of the blower device 10 configured as described above will be described with reference to FIGS. 2 to 4. FIG. FIG. 4(a) is a schematic diagram schematically showing the degree of opening of the first damper 19 and the second damper 20 when the third airflow 23 is sent out in the vertical direction from the first side 11c of the blower 10. is. FIG. 4(b) is a schematic diagram showing the degree of opening of the first damper 19 and the second damper 20 when the third airflow 23 is sent out horizontally from the first side 11c of the blower 10. is.

In the blower 10, in FIG. 2, when the motor connected to the blower fan 15 is driven, the blower fan 15 rotates clockwise. As a result, air is supplied from the suction port 14 to the inside of the blower fan 15 , and the air supplied to the inside of the blower fan 15 is blown out from the inside of the blower fan 15 to the outside. The air blown out from the blower fan 15 generates a clockwise air flow in the space formed between the scroll casing 16 and the blower fan 15 .

A part of the air flow generated as described above is guided to the first air guide path 17 via the first damper 19 and guided to the second air guide path 18 via the second damper 20 . Then, the air guided to the first air guide path 17 is blown out from the first outlet 12 as the first air stream 21 and is blown out from the second outlet 13 as the second air stream 22 .

Here, as described above, the first air guide path 17 is bent from a state parallel to the bottom surface 11b toward the first side 11c near the first outlet 12. A first airflow 21 is blown out along the front surface 11a toward the first side 11c. The first airflow 21 blown out from the first air outlet 12 experiences an attraction phenomenon due to the Coanda effect (a negative pressure region is generated between the first airflow 21 and the front face 11a, and the first airflow 21 is attracted to the negative pressure region side). flow along the front face 11a due to the phenomenon

In addition, since the second air guide path 18 is bent from a state parallel to the front face 11a toward the first side 11c near the second outlet 13, the second air guide path 18 extends from the second outlet 13 along the bottom surface 11b. A second airflow 22 is blown out toward the first side 11c. The second airflow 22 blown out from the second outlet 13 flows along the bottom surface 11b due to the attraction phenomenon caused by the Coanda effect.

The first airflow 21 blown out from the first blowout port 12 and the second airflow 22 blown out from the second blowout port 13 collide near the first side 11c, and move away from the first side 11c. Three air streams 23 are formed. At this time, the third airflow 23 is sent in a direction away from the first side 11c at an elevation angle (angle with the bottom surface 11b) corresponding to the air volume of the first airflow 21 and the air volume of the second airflow 22.

For example, as shown in FIG. , and the second air guide path 18, the air is guided at approximately the same air volume. That is, the air volume of the first airflow 21 blown out from the first outlet 12 and the air volume of the second airflow 22 blown out from the second outlet 13 are approximately the same.

Since the distance from the first outlet 12 to the first side 11c and the distance from the second outlet 13 to the first side 11c are substantially the same, the strength of the first airflow 21 at the first side 11c ( air volume) and the strength of the second airflow 22 (air volume) are approximately the same. Therefore, the first airflow 21 and the second airflow 22 having approximately the same strength collide in the vicinity of the first side 11c, so that the blower 10 moves the third airflow 23 in a direction with an elevation angle of 45 degrees from the first side 11c. to send out.

Further, as shown in FIG. 4A, when the control unit 30 controls the opening degree of the first damper 19 to be "large" and the opening degree of the second damper 20 to be "small", the first air A large amount of air is guided to the guide path 17, and a small amount of air is guided to the second air guide path 18. - 特許庁That is, the air volume of the first airflow 21 blown out from the first outlet 12 is increased, and the air volume of the second airflow 22 blown out from the second outlet 13 is decreased. As a result, the strength (air volume) of the first airflow 21 also increases on the first side 11c, and the strength (airflow) of the second airflow 22 decreases. Therefore, the strong first airflow 21 and the weak second airflow 22 collide in the vicinity of the first side 11c, so that the blower 10 moves in the direction of the elevation angle of 90 degrees from the first side 11c, that is, in the substantially vertical direction. An airflow 23 is delivered.

In addition, when the second damper 20 is completely closed and the air volume of the second airflow 22 blown out from the second outlet 13 is set to 0, the first airflow 21 blown out from the first outlet 12 is The elevation angle of the third airflow 23 that is caught in the vicinity of the bottom surface 11b and sent out from the first side 11c exceeds 90 degrees. Therefore, when the third airflow 23 is sent in the vertical direction from the first side 11c, it is preferable to blow out the second airflow 22 with a weak air volume from the second outlet 13 .

Further, as shown in FIG. 4B, when the control unit 30 controls the opening degree of the first damper 19 to be "small" and the opening degree of the second damper 20 to be "large", the first air Air is guided to the guide path 17 with a small air volume, and air is guided to the second air guide path 18 with a large air volume. That is, the air volume of the first airflow 21 blown out from the first air outlet 12 is reduced, and the air volume of the second airflow 22 blown out from the second air outlet 13 is increased. As a result, the strength (air volume) of the first airflow 21 also decreases on the first side 11c, and the strength (airflow) of the second airflow 22 increases. Therefore, the weak first airflow 21 and the strong second airflow 22 collide in the vicinity of the first side 11c, so that the air blower 10 moves in the direction of the elevation angle of 0 degrees from the first side 11c, that is, in the substantially horizontal direction. An airflow 23 is delivered.

When the first damper 19 is completely closed and the air volume of the first airflow 21 blown out from the first blowout port 12 is set to 0, the second airflow 22 blown out from the second blowout port 13 is The elevation angle of the third airflow 23 that is caught on the front 11a side in the vicinity and sent out from the first side 11c is less than 0 degrees (becomes upward). Therefore, when the third airflow 23 is sent out horizontally from the first side 11c, it is preferable to blow out the first airflow 21 with a weak air volume from the first outlet 12 .

Thus, in the blower 10, the first airflow 21 whose air volume is adjusted by the first damper 19 and the second airflow 22 whose air volume is adjusted by the second damper 20 collide near the first side 11c. Thus, the third airflow 23 is sent out in the direction away from the first side 11c. At this time, the control unit 30 of the blower 10 controls the adjustment of the air volume of the first airflow 21 by the first damper 19 and the adjustment of the air volume of the second airflow 22 by the second damper 20, and the third airflow 23 controls the direction away from the first side 11c within a predetermined blowing range.

As described above, according to the blower device 10 of the present invention, the first air outlet 12 is formed in the front face 11a of the housing 11, and the first airflow 21 is blown out along the front face 11a toward the first side 11c. A second air outlet 13 is formed in the bottom surface 11b of the housing 11, and a second airflow 22 is blown out along the bottom surface 11b toward the first side 11c. Then, the air blower 10 adjusts the air volume of the first airflow 21 blown out from the first air outlet 12 and the air volume of the second airflow 22 blown out from the second air outlet 13, so that the first side 11c A third airflow 23 can be sent out within a predetermined air blowing range in a direction away from. In other words, the air blowing device 10 can be configured to adjust the blowing direction of the third airflow 23 without using a movable louver that is required in the conventional sending device.

Further, the air blower 10 adjusts the air volume of the first airflow 21 blown out from the first air outlet 12 and the air volume of the second airflow 22 blown out from the second air outlet 13, so that the elevation angle (bottom surface 11b ) is at least 90 degrees, the third airflow 23 can be sent in a direction away from the first side 11c. In other words, it is possible to realize the blower 10 with a wider blowing range of the air flow compared to the conventional blower using a movable louver.

In addition, the movable louvers that were required in conventional blowers required large openings for air outlets. There was a problem. On the other hand, in the blower 10, since the opening itself does not exist in the vicinity of the first side 11c through which the third airflow 23 is sent, it is possible to blow air with a natural feeling. In addition, since the first blow-out port 12 and the second blow-out port 13 are also slit-shaped openings, the openings of the blow-out ports can be made inconspicuous, and the natural feeling of blown air can be further enhanced.

It should be noted that the blower 10 can be installed on the ceiling surface of a room, or can be installed upside down on the floor surface. is blocked. It is also possible to install the air blower 10 with the rear side thereof attached to the ceiling surface or the floor surface, in which case the suction port 14 provided on the rear surface is closed. Further, the blower 10 has a housing 11 formed in a rectangular parallelepiped shape, and is configured so that a plurality of blowers 10 can be arranged side by side in the left-right direction. Mouth 14 may be blocked. However, since the air blower 10 is provided with the air inlets 14 on the upper surface (flat surface), the left side, the right side, and the rear surface, at least one of the air inlets 14 is not blocked so that external Air can be reliably sucked into the blower 10. - 特許庁

The present invention has been described above based on the embodiments, but the present invention is not limited to the above-described embodiments, and it is easily understood that various modifications and improvements are possible without departing from the scope of the present invention. It can be inferred. For example, each embodiment may add part or more of the configuration of another embodiment to that embodiment or replace it with a part or more of the configuration of that embodiment. The embodiment may be modified and configured. Further, the numerical values given in each of the above embodiments are examples, and it is naturally possible to employ other numerical values.

In the above embodiment, the first air guide path 17 is formed near the first outlet 12 so that the first airflow 21 from the first outlet 12 is blown out along the front surface 11a toward the first side 11c. It is bent toward the first side 11c side. In addition, the second air guide path 18 extends along the first side near the second outlet 13 so that the second airflow 22 from the second outlet 13 is blown out along the bottom surface 11b toward the first side 11c. It is bent toward the 11c side. Alternatively or in addition to this, it is fixed near the first outlet 12 so that the first airflow 21 from the first outlet 12 is blown out along the front face 11a toward the first side 11c. A louver of the type may be provided. Also, a fixed louver may be provided near the second outlet 13 so that the second airflow 22 from the second outlet 13 is blown out along the bottom surface 11b toward the first side 11c. This also makes it possible to construct a blower capable of realizing a wide blowing range.

INDUSTRIAL APPLICABILITY The air blower according to the present invention is useful as an air blower capable of adjusting the direction of airflow to be sent without using a movable louver. available for

10 Blower 11 Housing 11a Front 11b Bottom 11c First side 12 First outlet 13 Second outlet 14 Suction port 15 Blower fan 16 Scroll casing 17 First air guide path 18 Second air guide path 19 First damper 20 Second damper 21 First airflow 22 Second airflow 23 Third airflow 30 Control unit

Claims (4)

a housing;
a first outlet formed on a first surface of the housing for blowing a first airflow along the first surface toward a first side of the housing;
a second outlet formed on a second surface of the housing that is in contact with the first surface on the first side and blows a second airflow along the second surface toward the first side;
a first air volume adjustment unit that adjusts the volume of the first airflow blown out from the first outlet;
a second air volume adjustment unit that adjusts the air volume of the second airflow blown out from the second outlet,
When the first airflow whose air volume is adjusted by the first air volume adjustment unit and the second air current whose air volume is adjusted by the second air volume adjustment unit collide in the vicinity of the first side, the A blower device characterized by sending out a third airflow in a direction away from the first side. 2. The blower according to claim 1, wherein said first outlet and said second outlet are slit-shaped along said first side. A direction in which the third air current moves away from the first side by controlling the adjustment of the air volume of the first air current by the first air volume adjustment part and the adjustment of the air volume of the second air current by the second air volume adjustment part. 3. The blower device according to claim 1, further comprising a control unit for controlling the. The first outlet and the second outlet are formed such that the distance from the first outlet to the first side and the distance from the second outlet to the first side are substantially the same. The air blower according to any one of claims 1 to 3, characterized in that:

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