JP6036383B2 - Blower system - Google Patents

Description

  The present invention relates to a blower system using a blower for circulation.

  When the air conditioner is operated in a room such as an office, temperature unevenness may occur in the vertical or horizontal direction of the room. The temperature unevenness causes discomfort to people in the room. Conventionally, in order to reduce such indoor temperature unevenness, a blower system that forcibly circulates indoor air has been used. As a method for this, temperature unevenness in a room is eliminated by arranging a plurality of blowers side by side on a ceiling (Patent Document 1).

JP2012-202631

  In the air blowing system described in Patent Document 1, the air blown from the blower travels along the ceiling, changes the traveling direction downward by colliding with the side wall surface, and proceeds toward the floor surface. For this reason, it is effective when temperature unevenness near the ceiling and floor (hereinafter referred to as “temperature unevenness in the vertical direction”) becomes a problem, but temperature unevenness between different locations at the same height in the room (hereinafter referred to as “temperature unevenness in the vertical direction”) In the case where it is necessary to eliminate (described as “temperature unevenness in the horizontal direction”), it is difficult to obtain an effect. Moreover, since an airflow is conveyed along a side wall surface, it has the subject that a feeling of an airflow can hardly be obtained for the person who is indoors. For example, in the winter season, the airflow sensation deteriorates comfort due to a decrease in the temperature of sensation, but in summer the decrease in the sensation temperature leads to an improvement in comfort. Therefore, in summer, a moderate airflow sensation should be promoted, not suppressed.

  An object of the present invention is to eliminate not only the temperature unevenness in the vertical direction but also to eliminate the temperature unevenness in the horizontal direction, and to obtain a blower system that can cope with a case where a feeling of airflow such as summer is desired. .

The blower system according to the present invention is:
Having a housing, the suction port to the rear side of the housing is formed, the housing air outlet is formed on the front side of the plurality disposed at predetermined intervals in the ceiling of the room, said outlet from said inlet A blower arranged so that the airflow direction is parallel to the ceiling toward
A control device for controlling ON / OFF of the plurality of fans;
The control device includes a first mode for controlling ON / OFF of the plurality of fans so that a circulating airflow is generated in the vicinity of the indoor ceiling, and the unidirectional airflow is generated in the vicinity of the indoor ceiling. A second mode for controlling ON / OFF of a plurality of blowers is provided.

  The blower system according to the present invention includes a first mode for generating a circulating airflow in the horizontal direction near the ceiling and a second mode for generating a one-way airflow in the vicinity of the ceiling. By controlling OFF, it is possible to eliminate the temperature unevenness in the vertical direction and the horizontal direction, and to obtain a blower system that can cope with the case where it is desired to obtain a feeling of airflow.

The schematic diagram of the room where the ventilation system which concerns on Embodiment 1 of this invention was applied. The block diagram of the ventilation system which concerns on Embodiment 1 of this invention. Sectional drawing of the air blower concerning Embodiment 1 of this invention. The external appearance perspective view of the air blower concerning Embodiment 1 of this invention. The figure which shows the kind of arrangement | positioning of the air blower of a ventilation system. The figure which shows the analysis result which calculated | required the comfort parameter | index SET at the time of air_conditionaing | cooling driving | operation. The figure which shows the analysis result which calculated | required the comfort parameter | index SET at the time of heating operation. The figure which shows arrangement | positioning of the several air blower in the air blowing system which concerns on Embodiment 1 of this invention. The figure which shows the correspondence of the 1st mode in the ventilation system which concerns on Embodiment 1 of this invention, the 2nd mode, and the air blower which operate | moves in each mode. The figure which shows the modification of arrangement | positioning of the air blower of the ventilation system which concerns on Embodiment 1 of this invention. The external appearance perspective view of the air blower concerning Embodiment 2 of this invention. The figure which shows arrangement | positioning of the air blower of the ventilation system which concerns on Embodiment 2 of this invention. The figure which shows arrangement | positioning of the air blower of the ventilation system which concerns on Embodiment 3 of this invention. The figure which shows the air blower operated in the 1st mode of the air blowing system which concerns on Embodiment 3 of this invention. The figure which shows the air blower operated in the 2nd mode of the ventilation system which concerns on Embodiment 3 of this invention. The figure which shows the modification of the ventilation system which concerns on Embodiment 3 of this invention. The figure which shows the air blower operated in the 1st mode of the modification of the ventilation system which concerns on Embodiment 3 of this invention. The figure which shows the air blower operated in the 2nd mode of the modification of the ventilation system which concerns on Embodiment 3 of this invention.

Embodiment 1
Embodiment 1 of the present invention will be described with reference to the drawings. FIG. 1 is a schematic diagram of a room to which a blower system according to Embodiment 1 of the present invention is applied, and FIG. 2 is a block diagram of the blower system according to Embodiment 1 of the present invention.

  The blower system 1 (not shown) includes an air conditioner 3 that adjusts the temperature or humidity of the room 2, a plurality of blowers 4a to 4h provided on the ceiling of the room 2 at predetermined intervals, and the plurality of blowers 4a to 4a. And a control device 5 (not shown) for controlling ON / OFF of the operation for 4h. A remote controller 5a for selecting a first or second mode to be described later is attached to the wall surface of the room 2. As shown in FIG. 2, the operation of the fans 4a to 4h is controlled by giving a command to the control device 5 from the remote controller 5a. The blowers 4a to 4h are arranged so that the air discharged by the blowers 4a to 4h does not interfere with each other. The blowers 4a to 4h are arranged so as not to interfere with the air blown out by the air conditioner 3. In FIG. 1, 26 air conditioners 3 are provided at predetermined intervals. However, since the air blowing system 1 only needs to circulate the air in the room 2, the air conditioner 3 does not necessarily have to be provided. Good.

  Subsequently, a specific arrangement of the plurality of blowers 4a to 4h will be described. In the first embodiment, a description will be given of a case where it is arranged in a rectangular parallelepiped room 2 shown in FIG. Near the ceiling of the room 2, eight fans 4a to 4h are arranged. The blower 4 a is provided on the ceiling near the corner portion constituted by the wall surface A and the wall surface D of the room 2, and is arranged to blow out air toward the wall surface B. The blown air is blown along the wall surface A. The blower 4c is provided on the ceiling near the corner portion constituted by the wall surface A and the wall surface B of the room 2, and is arranged so as to blow out air toward the wall surface C. The blown air is blown along the wall surface B. The direction in which the air blown from the blower 4c is the direction in which the direction in which the air blown from the blower 4a is blown is rotated 90 ° counterclockwise. The blower 4f is provided on the ceiling near the corner portion constituted by the wall surface B and the wall surface C of the room 2, and is arranged so as to blow out air toward the wall surface D. The blown air is blown along the wall surface C. The direction in which the blower 4f blows out air is the direction in which the direction in which the blower 4c blows air is rotated 90 ° counterclockwise. The blower 4h is provided on the ceiling near the corner portion constituted by the wall surface C and the wall surface D of the room 2, and is arranged so as to blow air toward the wall surface A. The blown air is blown along the wall surface D. The direction in which the blower 4h blows out the air is the direction in which the direction in which the blower 4f blows out the air is rotated 90 ° counterclockwise.

  The air blower 4b is arrange | positioned in the intermediate point of the air blower 4a and the air blower 4c, and the direction which blows off air is the same as the air blower 4a. The blower 4b is arranged so as to blow out air sent from the blower 4a toward the blower 4c. The blower 4g is disposed at an intermediate point between the blower 4f and the blower 4h, and the direction in which air is blown out is the same as that of the blower 4f. The blower 4g is arranged so as to blow out the air sent from the blower 4f toward the blower 4h. The blower 4d is disposed at an intermediate point between the blower 4c and the blower 4f, and the direction in which the air is blown out is the same as that of the blower 4f. That is, the fan 4c is mounted in a direction rotated 90 ° counterclockwise. The air blower 4e is arrange | positioned in the intermediate point of the air blower 4b and the air blower 4g, and the direction which blows off air is the same as the air blower 4g. That is, the fan 4c is mounted in a direction rotated 90 ° counterclockwise. The blower 4d and the blower 4e blow in the same direction as the blower 4f and the blower 4g.

Subsequently, the configuration of the blowers 4a to 4h of the blower system 1 will be described using the blower 4a as an example with reference to FIGS. FIG. 3 is a cross-sectional view of the blower 4a according to Embodiment 1 of the present invention, and FIG. 4 is an external perspective view of the blower 4a according to Embodiment 1 of the present invention. In addition, the air blower 4a and the air blowers 4b-4h are the same structures.
The blower 4 a includes a box-shaped housing 6 that forms an outer shell, and a plurality of blower units 7 that are provided in the housing 6 side by side. The case 6 has an elongated rectangular parallelepiped box shape, and five bell mouth-like air passages 8 are formed at equal intervals inside. In each air passage 8, a propeller fan 9 and an electric motor 10 that drives the propeller fan 9 are arranged in this order from the rear side E. The bell mouth-shaped air passage 8, the propeller fan 9, and the electric motor 10 constitute one blower unit 7.

  A suction port 11 is formed on the back side E of the housing 6. On the other hand, an air outlet 12 is formed on the front side F of the housing 6. The inlet 11 and the outlet 12 are formed for each air passage 8.

  The suction port 11 is covered with a grid-like protective guard 13. The protective guard 13 is installed to prevent foreign matter from entering the air passage 8, to prevent injuries caused by fingers touching the propeller fan 9, and to prevent scattering when parts such as the propeller fan 9 are removed. Yes. The protective guard 13 according to the present embodiment is formed in a lattice shape with wires. However, the present invention is not limited to this. . A guide 14 having a substantially triangular cross section is disposed on the downstream side of the electric motor 10 with a convex portion facing the electric motor 10 side. The guide 14 divides the airflow that has passed through the air passage 8 into two in the vertical direction. The guide 14 may be made of a sound deadening material.

  The blower 4 configured as described above is attached to a ceiling, a wall surface, or the like by attachment feet 15 provided at both ends of the housing 6. Further, the mounting foot 15 and the housing 6 are fixed at the housing support portion 16 with bolts or screws. As indicated by arrows in FIG. 3, the airflow G enters the blower 4 a through the slits of the protective guard 13, enters the air passages 8 through the suction ports 11, and is blown by the propeller fan 9. It moves in the path 8 and is discharged into the free space as a belt-like air current from the blowout port 12 that is divided vertically by the guide 14 and formed in two stages. Achieve the purpose of circulation with the discharged airflow. In addition, since the opening area of the blower outlet 12 is small compared with the suction inlet 11, the sucked air is accelerated in the air blower 4 and blown out into free space. For this reason, by using the blowers 4a to 4h according to the first embodiment, it is possible to blow air further in a predetermined direction. Further, when the bolts and screws of the housing support 16 are loosened, the housing 6 can be rotated with respect to the housing support 16 so that the blowing direction can be easily changed. In addition, the structure of the air blower used for this invention is not restricted to FIG.3 and FIG.4, What is necessary is just what can ventilate air.

  It continues and demonstrates the structure of the ventilation system 1 using above-described air blower 4a-4h using drawing. FIG. 5 is a diagram showing the types of arrangement of the blowers 4 of the blower system 1, FIG. 6 is a diagram showing the analysis result obtained for the comfort index SET during the cooling operation, and FIG. 7 is the comfort during the heating operation. It is a figure which shows the analysis result which calculated | required parameter | index SET.

  In the blower system 1, the arrangement of the blower 4 that circulates the air in the room 2 is roughly divided into two. The first is a circulation type arrangement in which air is circulated near the ceiling of the room 2 as shown in FIG. 5A, and the second is the ceiling of the room 2 as shown in FIG. 5B. This is a one-way type arrangement in which the air flows in one direction in the vicinity.

In general, air becomes lighter as the temperature increases, and heavier as the temperature decreases. The same applies to the situation where the cooling operation and the heating operation are performed. For example, in the case where the ambient temperature is high, such as in summer, a human being feels cool and comfortable because the temperature of the sensation decreases when a feeling of airflow is obtained. Furthermore, if the temperature difference in the horizontal direction is large, the user feels a temperature change every time the vehicle moves and is not comfortable. In addition, when the ambient temperature is low, such as in winter, humans feel cold and uncomfortable because the temperature of the sensation decreases when the airflow is felt.
For this reason, the purpose of using the blower 4 in the summer is to improve the temperature unevenness in the horizontal direction and to reduce the sensible temperature due to the feeling of airflow. In order to achieve this object, the circulation type arrangement shown in FIG. 5A that can generate a large amount of horizontal airflow near the floor surface is suitable. The principle will be described. When an air stream circulating near the ceiling is generated, the air stream gradually spreads. However, since the blower 4 is disposed on the ceiling near the side wall surface, the direction in which the airflow can spread is the floor surface direction or the center direction of the room. Furthermore, since the airflow circulates, force always works in the direction spreading from the center. For this reason, an airflow can spread only to a floor surface direction. Further, a circulating airflow is formed between the airflows spread in the floor surface direction. And the airflow tends to spread over time. Since a faster airflow circulates on the ceiling side, it cannot spread. Moreover, since it cannot spread in the direction of the side wall surface and the center of the room 2 in the same manner as described above, the airflow can only spread in the floor surface direction. Based on this principle, the circulating airflow generated near the ceiling gradually expands toward the floor. Therefore, the circulation type arrangement is an effective arrangement method in summer because a horizontal circulation airflow is generated near the ground.

  Subsequently, an air flow analysis was performed on the components arranged as shown in FIGS. 5A and 5B during the cooling operation. The analysis conditions are shown below. The analysis space shown in FIG. 1 is L: 27.5 m, W: 14.6 m, and H: 2.7 m. The conditions of the air conditioner and the like are as follows: the initial temperature of the room 2 is 32 ° C., the set temperature of the air conditioner 3 is 28 ° C., and the air volume of the fans 4 a to 4 h is 760 m 3 / h per unit. Under this analysis condition, a comfort index SET at 1.1 m above the floor was calculated. The comfort index SET is a new standard effective temperature calculated by adding a clothing amount, a metabolic rate, and the like to temperature and humidity, and is a so-called body temperature. In the following, the comfort index SET is referred to as the body temperature.

FIG. 6 shows the analysis results during the cooling operation. 6A is an analysis result when the blower 4 is stopped, FIG. 6B is an analysis result when the blower 4 arranged in a one-way type is operated, and FIG. 6C is arranged in a circulation type. It is an analysis result in the case of operating the blower 4.
When the blower 4 was stopped as shown in FIG. 6A, the result was that the sensible temperature was about 28 ° C. as well as 28 ° C., which is the set temperature of the air conditioner 3. Similarly, in the case of the unidirectional arrangement as shown in FIG. 6 (b), the perceived temperature was about 28 ° C. On the other hand, in the case of the circulation type arrangement as shown in FIG. Thus, in the case of the circulation type arrangement, the perceived temperature is reduced by about 2.0 to 2.5 ° C. as compared to the case of stopping the blower 4 and the one-way type arrangement. Therefore, the circulation type arrangement is effective in the cooling operation.

  In the case of the circulation type arrangement as shown in FIG. 5 (a), the air flow of the blower 4 reaches the blower 4 ahead and further continues to relay the air flow so as to convey the air flow to the blower 4 ahead. Is important. That is, it is necessary to arrange the blower 4 according to the size and structure of the room 2. Although the room 2 in FIG. 1 has a simple rectangular parallelepiped shape, this is merely an example of the arrangement, and the optimal number and arrangement position of the blowers 4 vary depending on the structure of the room 2. Therefore, an arrangement method that relays the airflow and loops the airflow near the ceiling of the room 2 to promote the airflow feeling is a circulation type arrangement. It should be noted that the precautions in the circulation type arrangement during the cooling operation are (1) keeping a distance that the air flow of the blower 4 reaches the next blower 4, and (2) the side of the loop of the air flow is the wall of the room 2 (3) The air current loop is not broken. If attention is not paid to these three points, an air current loop does not occur in the vicinity of the ceiling, and it is impossible to improve the temperature unevenness in the horizontal direction and to reduce the temperature of the body due to the air flow feeling.

  The optimal arrangement of the blower 4 during the heating operation will be described. The purpose of using the blower 4 in winter is to suppress a feeling of airflow that causes an improvement in temperature unevenness in the vertical direction and a reduction in the temperature of the body. For this purpose, it is considered that the one-way arrangement shown in FIG. 5B is effective in the winter, not the circulation arrangement in which the airflow is promoted. When the airflow flows in one direction near the ceiling, the airflow that collides with the side wall surface proceeds toward the floor surface direction. By doing so, the air on the ceiling side whose temperature is higher than the vicinity of the floor surface reaches the floor surface.

  Subsequently, an air flow analysis was performed on the components arranged as shown in FIGS. 5A and 5B during the heating operation. The analysis conditions are shown below. The analysis space shown in FIG. 1 is L: 27.5 m, W: 14.6 m, and H: 2.7 m. The conditions of the air conditioner and the like are as follows: the initial temperature of the room 2 is 0.6 ° C., the set temperature of the air conditioner 3 is 20 ° C., and the air volume of the blowers 4a to 4h is 760 m 3 / h per unit. Under this analysis condition, the sensible temperature at 1.1 m above the floor was calculated.

FIG. 7 shows the analysis results during the heating operation. 7A is an analysis result when the blower 4 is stopped, FIG. 7B is an analysis result when the blower 4 arranged in a one-way type is operated, and FIG. 7C is arranged in a circulation type. It is an analysis result in the case of operating the blower 4.
In the case of the circulation type arrangement as shown in FIG. On the other hand, in the one-way type arrangement in which it was difficult to obtain an effect in summer, the sensible temperature is increased by 1.0 to 1.5 ° C. compared to when the blower 4 is stopped. From these facts, it can be seen that the unidirectional arrangement that can create convection in the vertical direction of the room 2 and suppress the feeling of airflow is an effective arrangement during the heating operation in winter.

  In order to eliminate the temperature unevenness in the vertical direction, which is the purpose of winter, it is important to convect the air in the room 2 up and down along the wall. For example, in the case of a room facing a blow-through, if the blower 4 is operated toward the blow-through, the conveyed air flow passes through the blow-through and the up-and-down convection hardly occurs. In other words, it is not effective in blowing down the warm air on the ceiling. Therefore, in the case of the one-way type arrangement, it is important to set the direction in which the blower 4 blows air toward the wall. In addition, the precautions in the circulation type arrangement during the heating operation are (1) keeping a distance that the airflow of the blower reaches the next blower, and (2) setting the blowing direction of the blower to the wall direction. . If attention is not paid to these two points, airflow in one direction is not generated near the ceiling, and improvement in temperature unevenness in the vertical direction and airflow feeling cannot be suppressed.

  As described above, the circulation type arrangement is effective during the cooling operation, and the one-way type arrangement is effective during the heating operation. For this reason, in order for people in the room 2 to spend comfortably, it is necessary to change the type of airflow generated in the room 2 during the cooling operation and the heating operation.

  Subsequently, the arrangement of the blower satisfying both the circulation type arrangement and the one-way type arrangement and the control method thereof will be described with reference to FIGS. 8 and 9. FIG. 8 is a diagram showing an arrangement of a plurality of blowers in the air blowing system 1 according to Embodiment 1 of the present invention, and FIG. 9 is a first mode and a second mode of the air blowing system according to Embodiment 1 of the present invention. It is a figure which shows the correspondence of the air blower which operates.

During the cooling operation in summer, the blower is controlled as shown in FIG.
As shown in FIG. 9, for example, in a state where the operation of the blower is stopped, when the user or the like selects the first mode with the remote controller 5a or the like, the control device 5 causes the blower 4a, the blower 4b, the blower 4c, and the blower 4f. The blower 4g and the blower 4h are operated, and the blower 4d and the blower 4e are stopped. By doing so, the air flow generated by the blower 4a reaches the blower 4b, the air flow generated by the blower 4b reaches the blower air 4c, the air flow generated by the blower 4c reaches the blower 4f, and the air flow generated by the blower 4f. Reaches the blower 4g, the air flow generated by the blower 4g reaches the blower 4h, and the air flow generated by the blower 4h reaches the blower 4a. In this way, air is relayed to the next blower, so that an airflow that circulates counterclockwise as shown by an arrow in FIG.

  In addition, when the distance between each air blower 4a-4h is near and the airflow of each air blower 4a-4h affects the track | orbit of the airflow of the air blower 4a-4h ahead, arrangement | positioning angle etc. are considered after considering this influence. It is important to adjust and connect the airflow relay. For example, as shown in FIG. 10 (a), depending on the distance between the blowers and the air volume, the trajectory of the air flow of the blower 4c and the blower 4h is pushed by the air flow of the other blowers and shifted to the outside, and the air flow relay is successfully established. There may not be. In this case, the airflow relay can be realized by arranging the directions of the blower 4c and the blower 4h in FIG. 10B inward by an angle deviated from the original track.

During the heating operation in winter, the operation of the blower is controlled as shown in FIG.
As shown in FIG. 9, for example, in a state where the operation of the blower 4 is stopped, when the user or the like selects the second mode with the remote controller 5 a or the like, the control device 5 includes the blower 4 d, the blower 4 e, the blower 4 f, and the blower. 4g is operated, and the blower 4a, the blower 4b, the blower 4c, and the blower 4h are kept stopped. By doing so, the airflow generated by the blower 4d reaches the blower 4e, and the airflow generated by the blower 4e is blown toward the wall surface of the room 2. Similarly, the airflow generated by the blower 4f reaches the blower 4g, and the airflow generated by the blower 4g is blown toward the blower 4h in the room 2. In addition, the air blower 4d and the air blower 4e, the air blower 4f, and the air blower 4g are blowing in the same direction. In this way, air is blown to the next blower 4 so that an air flow can be generated in one direction near the ceiling of the room 2 as indicated by an arrow in FIG.

  By switching the operation mode of the eight blowers 4a to 4h in which the blowers 4a to 4h are arranged as shown in FIG. 8A during the cooling operation and the heating operation, as shown in FIG. 8B during the cooling operation. It is possible to generate a unidirectional flow as shown in FIG. In the present embodiment, the setting or switching between the first mode and the second mode is performed by the user operating the remote controller 5a or the like to give an instruction to the control device 5, but changes in season or temperature are detected. Then, the control device 5 may give a command to the blower. Further, in the first embodiment, the control from the state where the blowers 4a to 4h are stopped has been described, but the case where the blowers 4a to 4h are already operating may be used.

  In addition, in this Embodiment 1, although the case where eight air blowers 4a-4h were arrange | positioned near the ceiling of the rectangular parallelepiped room | chamber interior 2 demonstrated the circulation type airflow near the ceiling at the time of air_conditionaing | cooling operation, The shape of the room and the number of blowers are not limited as long as a one-way airflow is generated near the ceiling.

  The blower system according to Embodiment 1 includes a first mode for generating a circulating airflow in the horizontal direction near the ceiling and a second mode for generating a one-way airflow near the ceiling, and each blower corresponding to each mode. By controlling ON / OFF, it is possible to eliminate the temperature unevenness in the vertical direction and the horizontal direction, and to obtain a blower system that can cope with the case where a feeling of airflow is desired.

Embodiment 2
Once the blower according to the first embodiment is attached to the ceiling, it is impossible to change the direction in which the air blows out unless the screws and bolts are removed. However, the blower according to the second embodiment is not provided with screws or bolts. It is possible to change the direction in which the air is blown out without having to remove the air. In the second embodiment, differences from the first embodiment will be described.

As shown in FIG. 11, the blowers 4 b and 4 c according to the second embodiment have a structure that can be suspended from the ceiling by the rotating shaft 21. The rotating shaft 21 and the fans 4 b and 4 c are connected via a housing mounting portion 23, and the rotating shaft 21 and the ceiling are connected via a ceiling mounting portion 22. And the rotating shaft 21 rotates, and the air blowers 4b and 4c can also be rotated.
When the blower 4 according to the second embodiment is applied to the blower system shown in FIG. 8A, the structure shown in FIG. 12 can be obtained during the heating operation.

  The blower system shown in FIG. 12 has a configuration in which the blower 4c shown in FIG. 8A is rotated 90 ° counterclockwise and the blower 4b is rotated 180 ° C. When the blower 4b, the blower 4c, the blower 4d, the blower 4e, the blower 4f, and the blower 4g are operated, the blower 4b and the blower 4c that cannot be used during the heating operation illustrated in FIG. 8C can also be used. By rotating the blower 4b and the blower 4c, a one-way arrangement capable of operating more blowers 4b to 4g becomes possible. Thus, by providing a rotating shaft in a blower and changing the wind direction, the number of stopped blowers can be reduced and the blower can be used effectively. In addition, the air blower provided with the rotating shaft 21 according to the second embodiment is not limited to the heating operation, and is effective in saving trouble even when adjusting the angles of the air blowers 4c and 4h described in FIG. 10 during the cooling operation. It is. Note that the rotation angle may be adjusted by the user by directly rotating the blowers 4b, 4c, 4h by hand, or automatically by operating the remote controller 5a. Further, a temperature detection sensor, an air volume detection sensor, or the like may be provided to sense the indoor temperature condition or air volume condition, and the control device 5 may rotate the fan 4b, 4c, 4h by giving a command.

Embodiment 3
In the first embodiment, there is one airflow circulating near the ceiling during the cooling operation, whereas in the third embodiment, a plurality of airflows circulating near the ceiling are generated during the cooling operation. Will be described. Embodiment 3 of the present invention will be described with reference to the drawings. FIG. 13 is a diagram showing the arrangement of the blowers 4 of the blower system 1 according to Embodiment 3 of the present invention.

  In a general office, as shown in FIG. 13, the horizontal sectional view shape is rectangular, and a window 18 may be arranged on a wall surface 17a that forms one long side thereof. In such a case, outdoor heat flows from the window 18 in summer, and the room temperature near the window 18 rises. In winter, the room temperature near the window 18 decreases due to heat flowing out to the outdoors. As a result, the room temperature is uneven on the window side 19 and the back side 20 of the room 2. In order to reduce this temperature unevenness, it is necessary to circulate the air on the window side 19 and the back side 20 of the room 2. In FIG. 13, eight air conditioners 3 are provided at a predetermined interval. However, since the air blowing system 1 only needs to circulate the air in the room 2, the air conditioner 3 does not necessarily have to be provided. Good.

A blower system 1 according to Embodiment 3 will be described.
Near the ceiling of the room 2, five fans 4i and 4j are arranged at predetermined intervals. A window 18 is provided on one wall surface 17 a of the room 2. If the region near the wall surface 17a with the window 18 is the window side 19 and the region near the wall surface 17b on the opposite side of the wall surface 17a is the back side 20, the fans 4i and 4j are arranged on the window side 19 and A blower 4 i that blows air toward the side and a blower 4 j that is arranged on the back side 20 and blows air toward the window side 19 are arranged. The blower 4i is disposed in the central portion in the vicinity of the wall surface 17a on the window side 19, and the blower 4j is disposed on the wall surface 17c side and the wall surface 17d side along the wall surface 17b on the back side 20. It is necessary to arrange the blower 4 so as not to interfere with the blown airflow of the air conditioner 3.

  The blowing direction of the fans 4i and 4j and the flow of the airflow in the first mode will be described with reference to FIG. When the first mode is selected, an airflow in the opposite direction is blown out by simultaneously operating the blower 4i and the blower 4j as shown in FIG. Then, gradually, two circulation flows circulating in the room 2 as shown in FIG. 14B are formed. This flow agitates the air on the window side 19 and the back side 20 of the room 2 to reduce temperature unevenness, and a downdraft to the floor where the person lives is generated, so that the sensible temperature is lowered and comfort is improved.

  The blowing direction of the blower 4i and the flow of airflow in the second mode will be described with reference to FIG. When the second mode is selected, by operating only the blower 4i, an air flow is blown out toward the back side 20, and a one-way air flow crossing the window side 19 and the back side 20 is generated in the room 2. . The flow blown out from the blower 4i is directed along the ceiling surface toward the wall surface 17b. And it collides with the wall surface 17b, changes a direction downward, and goes to a floor surface along the wall surface 17b. Furthermore, the direction is changed by colliding with the floor surface, and it goes to the window side 19 along the floor surface. By this flow, the air on the window side 19 in the room 2 is conveyed to the back side 20 and at the same time the warm air staying on the ceiling surface by air conditioning is blown down to the floor surface, thereby reducing the temperature unevenness in the vertical direction. Since the flow that has reached the floor where the person lives is a distance from the blowout, the wind speed is attenuated and the feeling of airflow is sufficiently small.

  In the third embodiment, the ratio of the short side to the long side of the rectangular horizontal section of the room is about 1: 2, and the number N of circulating flows is two. It is preferable to arrange the blower 4i and the blower 4j so that the number N of flows becomes an integer close to (the length of the long side of the room / the length of the short side of the room). Since the circulation flow generated in a wide space is more stable in a shape close to a perfect circle, it is possible to relay to a fan at a farther distance, and the number of fans arranged can be reduced. Further, in order to prevent the adjacent circulation flows from canceling each other, the blower 4i and the blower 4j are arranged so that the rotation directions of the adjacent circulation flows are reversed.

  FIG. 16 shows an example of the arrangement of the fans 4i and 4j when the ratio of the short side to the long side is 1: 3. In this case, the fans 4i and 4j are arranged so that the number N of circulating flows is 3. In FIG. 17, twelve air conditioners 3 are provided at a predetermined interval. However, since the air blowing system 1 only needs to circulate the air in the room 2, the air conditioner 3 does not necessarily have to be provided. Good.

  When the first mode is selected, by operating the blowers 4i and 4j at the same time, an airflow in the opposite direction is blown out at the blower 4i and the blower 4j as shown in FIG. Thereby, a plurality of flows circulating in the room 2 in the horizontal direction as shown in FIG. When the first mode is selected, by operating only the blower 4i, an airflow as shown in FIG. 16 is blown out from the blower 4i, and a one-way airflow crossing the window side 19 and the back side 20 is generated in the room 2. Generated.

  If the blowers 4i and 4j are arranged as described above, the operation of the blowers 4i and 4j can be controlled without changing the air blowing direction of the blowers 4i and 4j, for example, during the cooling operation in the summer and the heating operation in the winter A suitable airflow can be generated. The ON / OFF switching of the operation of the blowers 4i, 4j may be given by the user operating the remote controller 5a or the like, or the control device 5 detects the cooling operation or heating operation of the air conditioner 3. You may switch automatically by giving a command to air blowers 4i and 4j. In this example, the temperature unevenness is caused by the arrangement of the window 18, but even when the operation of a part of the air conditioner 3 is stopped for power saving, the temperature unevenness is similarly caused. Can be used to make it smaller.

  The blowing direction of the blower 4i and the flow of airflow in the second mode will be described with reference to FIG. When the second mode is selected, by operating only the blower 4i, an air flow is blown out toward the back side 20, and a one-way air flow crossing the window side 19 and the back side 20 is generated in the room 2. . The flow blown out from the blower 4i is directed along the ceiling surface toward the wall surface 17b. And it collides with the wall surface 17b, changes a direction downward, and goes to a floor surface along the wall surface 17b. Furthermore, the direction is changed by colliding with the floor surface, and it goes to the window side 19 along the floor surface. By this flow, the air on the window side 19 in the room 2 is conveyed to the back side 20 and at the same time the warm air staying on the ceiling surface by air conditioning is blown down to the floor surface, thereby reducing the temperature unevenness in the vertical direction. Since the flow that has reached the floor where the person lives is a distance from the blowout, the wind speed is attenuated and the feeling of airflow is sufficiently small.

  The blower system according to the third embodiment The blower system according to the present invention includes a first mode for generating a circulating airflow in the horizontal direction near the ceiling and a second mode for generating a one-way airflow near the ceiling. By controlling ON / OFF of each blower corresponding to the mode, it is possible to eliminate the temperature unevenness in the vertical direction and the horizontal direction, and to obtain a blower system that can cope with the case where it is desired to obtain a feeling of airflow.

1 Blower System, 2 Indoors, 3 Air Conditioner, 4 Blower, 4a Blower, 4b Blower, 4c Blower, 4d Blower, 4e Blower, 4f Blower, 4g Blower, 4h Blower, 4i Blower, 4j Blower, 5 Controller, 5a Remote control, 6 housing, 7 blower unit, 8 air passage, 9 propeller fan, 10 electric motor, 11 suction port, 12 air outlet, 13 protective guard, 14 guide, 15 mounting foot, 16 housing support, 17a wall surface, 17b Wall surface, 17c wall surface, 17d wall surface, 18 window, 19 window side, 20 back side, 21 rotation axis, 22 ceiling mounting portion, 23 housing mounting portion, A wall surface, B wall surface, C wall surface, D wall surface

Claims (4)

Having a housing, the suction port to the rear side of the housing is formed, the housing air outlet is formed on the front side of the plurality disposed at predetermined intervals in the ceiling of the room, said outlet from said inlet A blower arranged so that the airflow direction is parallel to the ceiling toward
A control device for controlling ON / OFF of the plurality of fans;
The control device includes a first mode for controlling ON / OFF of the plurality of fans so that a circulating airflow is generated in the vicinity of the indoor ceiling, and the unidirectional airflow is generated in the vicinity of the indoor ceiling. A blower system comprising a second mode for controlling ON / OFF of a plurality of blowers.   The said blower is arrange | positioned so that the said blower outlet may face the next corner in order at the ceiling of the corner part comprised by the wall surface which adjoins the said room | chamber interior, The blower system of Claim 1 characterized by the above-mentioned. .   The said control apparatus can adjust the arrangement | positioning direction of the said air blower, The air blowing system of Claim 1 characterized by the above-mentioned.   2. The blower system according to claim 1, wherein when the room is rectangular, the blower is installed such that an airflow direction blown from the blowout port is parallel to a short side of the room.

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