JP2019190309A - Blower device and air conditioning system - Google Patents

Abstract

To provide a blower device capable of blowing air in a wide range by one device.SOLUTION: A blower device 20 comprises: a housing 1 having a suction port 4 at its back side and having an outlet 3 at its front face; and multiple blower units 2A, 2B, 2C, 2D, 2E including an impeller for generating air flow and a motor for driving the impeller and arranged in the housing 1 in which a blowing direction of blowing air is along a direction along an axial direction of a rotating shaft of the motor. The multiple blower units 2A, 2B, 2C, 2D, 2E are arranged in a state in which an axial direction of a rotating shaft of the motor of a reference blower unit 2S acting as a reference blower of the multiple blower units and an axial direction of the rotating shaft of the motor of the blower units 2A, 2B, 2D, 2E arranged at both sides of the reference blower unit 2S in arrangement directions of the multiple blower units 2A, 2B, 2C, 2D, 2E are crossed at a back surface side rather than the housing 1 as seen from a top plan view.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a blower that blows air that has been conditioned and an air conditioning system.

  Conventionally, the conditioned air sent from the air conditioner is blown to convey the conditioned air to a space where it is difficult to blow with the air conditioner alone because the conditioned air sent because it is far from the air conditioner does not reach. There is a case where a blower that is provided is provided between a space in which ventilation is difficult and an air conditioner. Patent Document 1 includes an outer box in which an inlet and an outlet are formed, and a fan unit that houses a fan unit and blows out air sucked from the inlet of the outer box from the outlet of the outer box. A blower provided is disclosed.

Japanese Patent No. 5335084

  However, when trying to air-condition a large space such as a factory using the blower described in Patent Document 1, in order to blow conditioned air over a wide range, a plurality of units are provided for one air conditioner. It was necessary to install a blower. In this case, in the blower arranged at a location away from the air conditioner air outlet, the amount of suction of the surrounding air, which is air other than the conditioned air blown out from the air conditioner air outlet, increases. The effect of air conditioning by the conditioned air that has been blown will be reduced. For this reason, there is a demand for a blower capable of blowing air over a wide range with a single unit.

  This invention is made | formed in view of the above, Comprising: It aims at obtaining the air blower which can ventilate widely in one unit.

  In order to solve the above-described problems and achieve the object, a blower according to the present invention includes a casing having a suction port on the back side and a blower outlet on the front side, an impeller and an impeller for generating an air flow. And a plurality of blower devices arranged in the housing, the blowing direction of the blown airflow is a direction along the axial direction of the rotating shaft of the electric motor. The plurality of blower devices are the motors of the blower motors arranged on both sides of the reference blower device in the axial direction of the rotation shaft of the motor of the reference blower device as a reference among the plurality of blower devices and the arrangement direction of the plurality of blower devices. It arrange | positions in the state which cross | intersects the axial direction of a rotating shaft on the back side rather than a housing | casing in planar view.

  According to the present invention, there is an effect that a blower capable of blowing air over a wide range with one unit is obtained.

The perspective view which shows the air conditioning system concerning Embodiment 1 of this invention. The schematic diagram which shows the ventilation state of the air conditioning in the air conditioning system concerning Embodiment 1 of this invention. The front view of the air blower concerning Embodiment 1 of this invention. 1 is a cross-sectional view schematically showing a schematic configuration of a blower according to a first embodiment of the present invention. The longitudinal cross-sectional view which shows the structure of the air blower unit of the air blower concerning Embodiment 1 of this invention. Functional block diagram of the principal part in connection with control of the air blower concerning Embodiment 1 of this invention The figure which shows an example of the hardware constitutions of the processing circuit concerning Embodiment 1 of this invention. The schematic diagram which shows an example of the image of the increase effect of the airflow width of the airflow blown from the air blower in the air conditioning system concerning Embodiment 1 of this invention. The characteristic view which shows an example of the wind speed distribution map by the airflow analysis of the air blower concerning Embodiment 1 of this invention The characteristic view which shows an example of the wind speed distribution map by the airflow analysis of the air blower concerning Embodiment 1 of this invention

  Hereinafter, a blower and an air conditioning system according to embodiments of the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is a perspective view showing an air conditioning system 100 according to Embodiment 1 of the present invention. FIG. 2 is a schematic diagram illustrating an air-conditioning blowing state in the air-conditioning system 100 according to the first embodiment of the present invention. FIG. 3 is a front view of the air blower 20 according to the first embodiment of the present invention. FIG. 4 is a cross-sectional view schematically showing a schematic configuration of the blower 20 according to the first embodiment of the present invention. In FIG. 4, the lower side is the front side of the blower 20, and the upper side is the back side of the blower 20. In FIG. 4, arrows indicate the directions in which airflows blown out from the respective fan units 2 flow. FIG. 5 is a longitudinal sectional view showing the configuration of the blower unit 2 of the blower device 20 according to the first embodiment of the present invention.

  The air conditioning system 100 according to the first embodiment includes an air conditioner 30 that performs air conditioning in a target space, and a blower device 20 that blows conditioned air blown out from the air conditioner 30.

  The air conditioner 30 has a function of a general air conditioner, and includes an indoor unit 31 arranged indoors and an outdoor unit 32 arranged outdoors. The indoor unit 31 and the outdoor unit 32 are connected by a refrigerant circuit that circulates the refrigerant, and can perform a cooling operation and a heating operation. As shown in FIG. 1, the air conditioner 30 blows out conditioned air from an outlet 33 provided on the front surface. For example, as shown in FIG. 2, the air conditioner 30 is arranged and used along a wall surface 41 on one end side in a factory 40. In addition, the form of the air conditioner 30 is not ask | required.

  The blower device 20 includes a rectangular parallelepiped housing 1 having a suction port 4 on the back surface side and an air outlet 3 on the front surface side to form an outer shell, and a plurality of blower devices arranged in the housing 1. The blower unit 2, the control unit 5, and the operation terminal 6 are included. The blower device 20 is an electrical device that generates an air flow from the back surface to the front surface inside the housing 1 and blows it forward, and is disposed on the front surface side of the air conditioner 30. The front side of the air conditioner 30 is the side where the air outlet 33 in the air conditioner 30 is disposed.

  An air outlet 3 is formed on the front surface 1 a of the housing 1 over substantially the entire length in the longitudinal direction of the housing 1. A suction port 4 is formed on the rear surface 1 b of the housing 1 over substantially the entire length in the longitudinal direction of the housing 1. The blower outlet 3 blows air from the inside of the housing 1 in a direction from the suction port 4 toward the blower outlet 3. The direction from the inlet 4 toward the outlet 3 is the same as the direction in which the air conditioner 30 blows out conditioned air, and the short side of the casing 1 is in a plane parallel to the in-plane direction of the bottom surface 1 c of the casing 1. The same direction as the direction. In the air blower 20, the front surface 1a side of the housing 1 is the front surface side, and the back surface 1b side of the housing 1 is the back surface side. The housing 1 is suspended from the ceiling by mounting plates (not shown) attached to both ends. In addition, the air blower 20 may be installed on the base instead of the ceiling, for example.

  The interior of the housing 1 is partitioned into independent independent spaces of a number corresponding to the number of the blower units 2 by a flat partition plate 8 provided inside the housing 1 and partitioning the blower units 2. The partition plate 8 is arranged along the direction from the inlet 4 toward the outlet 3 inside the housing 1. In the first embodiment, the inside of the housing 1 is divided into five independent spaces arranged along the longitudinal direction of the housing 1 by four partition plates 8. By partitioning the inside of the housing 1 with the partition plate 8, the conditioned air blown out from the air conditioner 30 is guided to each independent space, and the conditioned air flows smoothly into each independent space. A panel 9 for concealing a lead wire drawn from the blower unit 2 accommodated in the housing 1 is attached to the air outlet 3, and the air outlet 3 is divided into two stages.

  The blower unit 2 is an axial fan, and a bell mouth-like air passage 12 is formed in the frame 11 forming the outer shell of the blower unit 2 so as to penetrate from the back side to the front side of the frame 11. Yes. An impeller 13 that generates an air flow and an electric motor 14 that drives the impeller 13 are arranged in this order from the back side of the frame 11 in the air passage 12. The impeller 13 is mounted on the rotating shaft 14 a of the electric motor 14 and is arranged coaxially with the electric motor 14. In addition, if the air blower unit 2 is the said structure, since the wind path 12 becomes independent space by the flame | frame 11, you may omit the partition plate 8 mentioned above.

  The plurality of blower units 2 are in a state where the blowing direction of the air flow blown out from the blower unit 2 faces the blowout port 3 of the housing 1, that is, the blower direction of the blower unit 2 faces the blowout port 3 of the housing 1. In the state, they are arranged in parallel in one row along the longitudinal direction of the housing 1. That is, the arrangement direction of the plurality of blower units 2 is the same direction as the longitudinal direction of the housing 1. The blowing direction of the airflow blown out from the blower unit 2 is a direction along the axial direction of the rotating shaft 14 a of the electric motor 14. The blower 20 includes five blower units 2, which are a blower unit 2A, a blower unit 2B, a blower unit 2C, a blower unit 2D, and a blower unit 2E.

  In the five blower units 2, all the components have the same size and the same performance, and standardization in manufacturing is achieved. Accordingly, the five blower units 2 can achieve the same blowing performance. That is, the five air blower units 2 are controlled to have the same air volume by controlling the electric motor 14 at the same rotational speed by the control unit 5. The blowing direction of the air flow blown out from the blower unit 2, that is, the direction of the rotating shaft 14 a of the electric motor 14 of the blower unit 2 is in a plane parallel to the in-plane direction of the bottom surface 1 c of the casing 1. It differs depending on the arrangement position of the units 2 in the arrangement direction. In other words, the blowing direction of the airflow blown out from the blower unit 2 differs in the angle with respect to the in-plane direction of the partition plate 8 depending on the arrangement position in the arrangement direction of the blower units 2 in the housing 1.

  The arrangement direction of the blower unit 2 in the blower 20 will be described. In the blower device 20, the plurality of blower units 2 are the reference blowers in the axial direction of the rotating shaft 14 a of the motor 14 of the reference blower unit 2 </ b> S as a reference among the multiple blower units 2 and the arrangement direction of the multiple blower units 2. It arrange | positions in the state which the axial direction of the rotating shaft 14a of the electric motor 14 of the air blower unit 2 arrange | positioned at the both sides of the unit 2S cross | intersects by the back side rather than the housing | casing 1 in planar view. The reference blower unit 2S in the blower 20 is a blower unit 2C. Hereinafter, the arrangement direction of the blower unit 2 in the blower 20 will be specifically described.

  Among the five blower units 2, the blower unit 2 </ b> C is arranged at a central position in the arrangement direction of the blower units 2. The front surface of the blower unit 2C faces the direction from the suction port 4 toward the blowout port 3, that is, the direction in which the air conditioner 30 blows out conditioned air. And the air blower unit 2C located in the center in the arrangement | sequence direction of the air blower unit 2 is the same direction as the direction along the direction where the rotating shaft 14a of the electric motor 14 goes to the blower outlet 3 from the suction inlet 4, ie, an air conditioner. The direction 30 is the same as the direction in which the conditioned air is blown out.

  Among the five blower units 2, the blower unit 2A, the blower unit 2B, the blower unit 2D, and the blower unit 2E, which are blower units 2 other than the blower unit 2C, are in a plane parallel to the in-plane direction of the bottom surface 1c of the housing 1. 2, the direction of the rotating shaft 14 a of the electric motor 14 of each blower unit 2 and the direction of the rotating shaft 14 a of the electric motor 14 of the blower unit 2 </ b> C are arranged in a state of intersecting on the back side with respect to the housing 1. That is, among the five blower units 2, the blower unit 2A, the blower unit 2B, the blower unit 2D, and the blower unit 2E other than the blower unit 2C are parallel to the in-plane direction of the bottom surface 1c of the housing 1. In the plane, the direction along the blowing direction of the air flow 21 </ b> C blown out from the blower unit 2 </ b> C and the direction along the blowing direction of the air flow blown out from each blower unit 2 intersect on the back side from the housing 1. It is arranged in the state to do. Therefore, the air blower unit 2A, the air blower unit 2B, the air blower unit 2D, and the air blower unit 2E are in a direction parallel to the in-plane direction of the bottom surface 1c of the housing 1, and a direction in which the front face faces and a direction in which the front face of the blower unit 2C faces. It is arranged in an angled state. Therefore, the front surfaces of the blower unit 2A, the blower unit 2B, the blower unit 2D, and the blower unit 2E are directions different from the direction in which the front face of the blower unit 2C faces, and one end side or the other end side in the arrangement direction of the blower units 2 It is facing the direction inclined to.

  Of the five blower units 2, the front surface of the blower unit 2 </ b> A located closest to one end in the arrangement direction of the blower units 2 faces a direction inclined toward one end side in the arrangement direction of the blower units 2. The direction in which the front surface of the blower unit 2 faces is the blowing direction of the airflow blown from the blower unit 2. Therefore, in other words, the blower unit 2A is in a state where the blowing direction of the airflow 21A blown out from the blower unit 2A is inclined toward one end in the arrangement direction of the blower units 2 with respect to the blowing direction of the airflow 21C, that is, the airflow 21A. Are arranged such that the blowing direction of the air flow and the blowing direction of the air flow 21C are separated from each other.

  Among the five blower units 2, the front surface of the blower unit 2 </ b> B located second from the one end side in the arrangement direction of the blower units 2 faces a direction inclined toward one end side in the arrangement direction of the blower units 2. In other words, the blower unit 2B is in a state where the blowing direction of the airflow 21B blown from the blower unit 2B is inclined toward one end in the arrangement direction of the blower units 2 with respect to the blowing direction of the airflow 21C, that is, the blowing of the airflow 21B. The direction and the blowing direction of the air flow 21 </ b> C are separated from each other.

  And in the air blower unit 2A and the air blower unit 2B, the air blower unit 2 arrange | positioned at the end side in the arrangement direction of the air blower unit 2 is in a plane parallel to the in-plane direction of the bottom surface 1c of the housing 1, that is, In plan view, the crossing angle, which is the angle formed by the direction of the rotating shaft 14a of the electric motor 14 and the direction of the rotating shaft 14a of the electric motor 14 of the blower unit 2C, is increased. That is, in the blower unit 2A and the blower unit 2B, the crossing angle is increased as the blower unit 2 has a longer distance from the blower unit 2C in the arrangement direction of the blower units 2. Further, the crossing angle is such that the plane parallel to the in-plane direction of the bottom surface 1c of the housing 1 is parallel to the blowing direction of the airflow blown from the blower unit 2 and the airflow 21C blown from the blower unit 2C. In other words, it can be said to be the angle between the direction of the blowout and the direction parallel to the direction.

  Therefore, in the blower unit 2A and the blower unit 2B, the intersection angle between the blower unit 2A and the blower unit 2C is larger than the intersection angle between the blower unit 2B and the blower unit 2C. The crossing angle between the blower unit 2A and the blower unit 2C is, for example, 25 °. The crossing angle between the blower unit 2B and the blower unit 2C is, for example, 10 °.

  On the other hand, among the five blower units 2, the front surface of the blower unit 2 </ b> E that is positioned on the other end side in the arrangement direction of the blower units 2 faces a direction inclined toward the other end side in the arrangement direction of the blower units 2. In other words, the blower unit 2E is in a state where the blowing direction of the air flow 21E blown from the blower unit 2E is inclined to the other end side in the arrangement direction of the blower units 2 with respect to the blowing direction of the air flow 21C, that is, the air flow 21E. The blowing direction and the blowing direction of the air flow 21 </ b> C are separated from each other.

  Of the five blower units 2, the front surface of the blower unit 2 </ b> D located second from the other end side in the arrangement direction of the blower units 2 faces a direction inclined toward the other end side in the arrangement direction of the blower units 2. In other words, the blower unit 2D is in a state where the blowing direction of the airflow 21D blown from the blower unit 2D is inclined toward the other end side in the arrangement direction of the blower units 2 with respect to the blowing direction of the airflow 21C, that is, the airflow 21D. The blowing direction and the blowing direction of the air flow 21 </ b> C are separated from each other.

  In the blower unit 2E and the blower unit 2D, the blower unit 2 arranged on the outer side in the arrangement direction of the blower units 2 is closer to the electric motor 14 in a plane parallel to the in-plane direction of the bottom surface 1c of the housing 1. The crossing angle which is an angle formed by the direction of the rotating shaft 14a and the direction of the rotating shaft 14a of the electric motor 14 of the blower unit 2C is increased. That is, in the blower unit 2E and the blower unit 2D, the crossing angle is increased as the blower unit 2 has a longer distance from the blower unit 2C in the arrangement direction of the blower units 2.

  Therefore, in the blower unit 2E and the blower unit 2D, the intersection angle between the blower unit 2E and the blower unit 2C is larger than the intersection angle between the blower unit 2D and the blower unit 2C. The crossing angle between the blower unit 2E and the blower unit 2C is, for example, 25 °. The crossing angle between the blower unit 2D and the blower unit 2C is, for example, 10 °.

  Therefore, in the air blower 20, the crossing angle is made larger in the fan unit 2 in the arrangement direction of the air blower units 2 as the air blower unit 2 is farther from the reference air blower unit 2S which is the air blower unit 2 as a reference. Further, the crossing angle can be restated as an arrangement angle of each blower unit 2 with respect to the reference blower unit 2S.

  Adjustment of the air volume of the blower unit 2 is performed by the control unit 5 provided on the outer surface of the housing 1. FIG. 6 is a functional configuration diagram of main parts related to the control of the blower 20 according to the first embodiment of the present invention. The control unit 5 communicates with the operation terminal 6 and exchanges various information related to the operation of the blower 20. The control unit 5 controls the operation, stop, air volume, and wind direction of the blower device 20 according to the instruction information transmitted from the operation terminal 6.

  The control unit 5 individually supplies power supplied from the external power supply 7 to the control unit 5 to the motors 14 of the blower units 2A, 2B, 2C, 2D, and 2E, and the blower units 2A, 2B, 2C, 2D, 2E operation and stop are controlled. The controller 5 collectively controls the power supplied to the motors 14 of the blower units 2A, 2B, 2C, 2D, and 2E under the same conditions, and controls the air volume of the blower units 2A, 2B, 2C, 2D, and 2E. It is possible to perform the same control.

  In addition, the control unit 5 individually controls the power supplied to the motors 14 of the blower units 2A, 2B, 2C, 2D, and 2E, thereby individually controlling the air volumes of the blower units 2A, 2B, 2C, 2D, and 2E. It is possible to control. The control unit 5 individually controls the power supplied to the electric motors 14 of the blower units 2A, 2B, 2C, 2D, and 2E, and makes the blower units 2 different so that the airflow blown from the blower device 20 is changed. It is possible to control the airflow width. That is, the control unit 5 has a function of a motor driver that controls the motors 14 of the blower units 2A, 2B, 2C, 2D, and 2E individually or collectively.

  The control unit 5 is realized, for example, as a processing circuit having a hardware configuration shown in FIG. FIG. 7 is a diagram illustrating an example of a hardware configuration of the processing circuit according to the first embodiment of the present invention. When the control unit 5 is realized as a processing circuit having the hardware configuration illustrated in FIG. 7, for example, the control unit 5 causes the processor 101 illustrated in FIG. 7 to execute a program stored in the memory 102. Realized. In addition, a plurality of processors and a plurality of memories may cooperate to realize the above function. Further, a part of the function of the control unit 5 may be mounted as an electronic circuit, and the other part may be realized using the processor 101 and the memory 102.

  It is preferable that the blower device 20 is arranged on the front side of the indoor unit 31 of the air conditioner 30 at a position where the conditioned air blown out from the air outlet 33 provided on the front surface of the indoor unit 31 can be sucked. More specifically, it is preferable that the air blower 20 is arrange | positioned so that the suction inlet 4 may be located on the extension of the ventilation direction of the conditioned air which blows off from the blower outlet 33 of the indoor unit 31. FIG. And as shown in FIG. 2, the air blower 20 is the area | region which cannot air the conditioned air which is air-conditioned in the air conditioner 30 and blown out from the blower outlet 33 in the factory 40 with the ventilation capability of the air conditioner 30. The air is blown toward the worker 43 who is working in a region near the wall 42 on the other end side.

  For example, a case where hot air stays in the upper part of the factory 40 and the temperature of the area where the worker 43 works in the factory 40 is increased, and the air conditioner 30 cools the inside of the factory 40. Think. When the air blower 20 is not used, the cold air that is the conditioned air blown out from the air conditioner 30 does not reach the operator 43, but on the front side of the air conditioner 30 as shown by the arrow C in FIG. It descends and sinks and stays in the lower area inside the factory 40. An arrow C indicates a direction in which cool air descending on the front side of the air conditioner 30 flows.

  On the other hand, for example, when the air conditioner 30 performs a cooling operation, by using the blower 20, the cold air blown from the air conditioner 30 flows and is sucked into the blower 20 as indicated by an arrow A in FIG. 2. As shown by the arrow B in FIG. 2, it is possible to blow air toward the work area of the worker 43. Therefore, the air conditioning system 100 according to the first embodiment can convey the cold air to the area in the factory 40 where the cold air cannot reach by only the cold wind blown from the air conditioner 30. An arrow A indicates a direction in which cold air blown out from the air conditioner 30 and sucked into the blower 20 flows. Arrow B indicates the direction in which the cool air sucked into the blower 20 and blown toward the work area of the worker 43 flows.

  Moreover, the crossing angle of the air blower device 20 is increased as the air blower unit 2 is distant from the reference air blower unit 2S which is the air blower unit 2 as a reference in the arrangement direction of the air blower units 2 as described above. Thereby, the air blower 20 can blow the conditioned air by widening the air flow width of the air flow to be blown wider than the width in the longitudinal direction of the housing 1. Thereby, the air blower 20 blows the conditioned air blown out from one air conditioner 30 to a distant place with a wider airflow width than the width of the airflow blown out from the air outlet 33 of the air conditioner 30. Is possible.

  FIG. 8 is a schematic diagram illustrating an example of an image of the effect of increasing the airflow width of the airflow blown from the blower 200 in the air-conditioning system 100 according to the first embodiment of the present invention. In FIG. 8, the conditioned air blown out from the air conditioner 30 by arranging the three air blowers 200 at the same three positions of the air conditioner 30 in front of the air conditioner 30 and the positions on both sides thereof. The image of the airflow width of the airflow blown from the blower 200 is also shown. Each of the three air blowers 200 includes five air blower units 2. The five blower units 2 are directed in the direction from the suction port 4 toward the blowout port 3, that is, in the direction in which the air conditioner 30 blows out conditioned air.

  As shown in FIG. 8, for example, consider a case where the temperature of the ambient air inside the factory 40 is 30 ° C., and the blower 20 sucks and blows 10 ° C. cold air blown out from one air conditioner 30. . The cold air blown from the blower 20 according to the first embodiment gradually decreases from 1 m / s to 0.5 m / s and 0.3 m / s, and the area near the wall 42 on the other end side. It reaches around the worker 43 who is working.

  At this time, most of the air sucked into the air blower 20 becomes 10 ° C. cold air blown out from the air conditioner 30, and the ambient air sucked into the air blower 20 becomes a very small amount. For this reason, the temperature rise resulting from the mixing of the ambient air sucked into the blower 20 and the cool air is suppressed for the cool air that has reached the periphery of the worker 43. Thereby, the temperature of the cold air that has reached the periphery of the worker 43 is 26 ° C., which is 4 ° C. lower than the temperature 30 ° C. of the ambient air inside the factory 40, and the air conditioning effect by the cold air on the periphery of the worker 43 is obtained. A cooling effect for the worker 43 is obtained.

  Further, when the cool air blown from the blower 20 reaches the periphery of the worker 43, the air flow width includes the periphery of the five workers 43 arranged along the wall surface 42 on the other end side. It has been expanded to the extent of airflow. Thereby, the air conditioning system 100 can blow the cold air blown from one air conditioner 30 around the five workers 43, and can perform a plurality of operations using the one air conditioner 30. The air around the person 43 can be conditioned.

  On the other hand, when it is going to obtain the airflow width comparable as the airflow width blown from the air blower 20 using the air blower 200, the three air blowers 200 are needed. Under the same conditions as above, for example, the temperature of the ambient air inside the factory 40 is 30 ° C., and the three air blowers 200 suck and blow 10 ° C. cold air blown from one air conditioner 30. think of. The cold air blown from the three air blowers 200 gradually decreases from 1 m / s to 0.5 m / s and 0.3 m / s, and works in a region near the wall 42 on the other end side. It reaches around the worker 43 who is.

  At this time, most of the air sucked into the air blower 200 arranged at the front position of the air conditioner 30 becomes 10 ° C. cold air blown from the air conditioner 30 as in the case of the air blower 20, and the air blower The amount of ambient air sucked into 200 is extremely small. For this reason, the temperature rise resulting from the mixing of the ambient air sucked into the blower device 200 and the cool air that is blown from the blower device 200 and reaches the periphery of the worker 43 is suppressed. As a result, the temperature of the cool air blown out from the blower 200 and reaching the periphery of the worker 43 becomes 26 ° C., which is 4 ° C. lower than the temperature of the ambient air inside the factory 40, and is due to the cool air around the worker 43. An air conditioning effect is obtained, and a cooling effect for the worker 43 is obtained.

  However, when the cool air blown from the blower device 200 arranged at the front position of the air conditioner 30 reaches the periphery of the operator 43, the airflow width is aligned along the wall surface 42 on the other end side. At most, the airflow width is wide enough to encompass the surroundings of about two workers 43.

  On the other hand, also in the two air blowers 200 arranged at positions away from the air conditioner 30, 10 ° C. cold air blown out from the air conditioner 30 is sucked. However, in these two air blowers 200, compared with the air blower 200 arrange | positioned in the position of the front of the air conditioner 30, the quantity of 30 degreeC surrounding air sucked in increases significantly. For this reason, the cold wind that has been blown from the two blowers 200 and has reached the periphery of the worker 43 has a large temperature rise due to the mixture of the ambient air sucked into the blower 200 and the cold wind. As a result, the temperature of the cool air reaching the periphery of the worker 43 becomes 29 ° C., which is the same as the temperature of the ambient air inside the factory 40, and the air conditioning effect by the cool air on the periphery of the worker 43 is hardly obtained. .

  Thus, in order to blow the cold air blown from the air conditioner 30 around the five workers 43 using the three blower devices 200, it is necessary to use the three air conditioners 30. Arise. However, in the two air blowers 200 arranged at positions away from the air conditioner 30, the air conditioning effect by the cold air on the surroundings of the worker 43 is hardly obtained.

  Therefore, the air conditioning system 100 can blow cold air to a wide area equivalent to that of the three air blowers 200 with one air blower 20 while suppressing the temperature drop of the air flow to be blown, and the cold air transfer effect The investment cost required for improvement and air conditioning can be reduced.

  FIG. 9 is a characteristic diagram showing an example of a wind speed distribution diagram by airflow analysis of the blower 20 according to the first embodiment of the present invention. 9A shows a wind speed distribution diagram in a top view, and FIG. 9B shows a cross section A along the line IX (b) -IX (b) in FIG. 9A. 9C shows a cross section B along the line IX (c) -IX (c) in FIG. 9A, and FIG. 9D shows the IX (d) − in FIG. 9A. A cross section C along the line IX (d) is shown.

In the example shown in FIG. 9, the air volume of each blower unit 2 in the blower 20 is 2730 m ³ / h, and the size of the outlet 3 of the blower 20 is horizontal: 1300 mm × longitudinal: 100 mm. The crossing angle of each blower unit 2 with respect to the blower unit 2C, which is the reference blower unit 2S, is as follows: the blower unit 2A is 20 ° on one end side, the blower unit 2B is 10 ° on one end side, and the blower unit 2D is 10 on the other end side. The blower unit 2E is 20 ° on the other end side.

  Further, FIG. 10 shows an example of a wind speed distribution diagram by an air flow analysis when the crossing angle of the blower unit 2 is changed with respect to the example of FIG. FIG. 10 is a characteristic diagram illustrating an example of a wind speed distribution diagram based on an air flow analysis of the blower 20 according to the first embodiment of the present invention. 10A shows a wind speed distribution diagram in a top view, and FIG. 10B shows a cross section D along the line X (b) -X (b) in FIG. 10A. FIG. 10C shows a cross section E along line X (c) -X (c) in FIG.

In the example shown in FIG. 10, the crossing angle of each blower unit 2 is different from the condition in the example shown in FIG. 9. That is, in the example shown in FIG. 10, the air volume of each blower unit 2 in the blower 20 is 2730 m ³ / h, and the size of the outlet 3 of the blower 20 is horizontal: 1300 mm × longitudinal: 100 mm. On the other hand, the crossing angle of each blower unit 2 with respect to the blower unit 2C which is the reference blower unit 2S is as follows: the blower unit 2A is 25 ° on one end side, the blower unit 2B is 10 ° on one end side, and the blower unit 2D is 10 on the other end side. The blower unit 2E is 25 ° on the other end side. Therefore, in the example shown in FIG. 10, the crossing angle is increased in the arrangement direction of the blower units 2 as the blower unit 2 located on the outer side in the arrangement direction of the blower units 2, so Has been.

On the other hand, although not shown in figure, the general air blower in which all the several air blower units face the direction which goes to a blower outlet from the suction inlet, ie, the direction which the air conditioner 30 blows off conditioned air similarly to the air blower 200 mentioned above. The airflow analysis was conducted. The air volume of each blower unit in the blower is 1365 m ³ / h, and the size of the blower outlet of the blower is horizontal: 900 mm × longitudinal: 53 mm. The airflow width of the airflow blown from this general blower was 4 m.

  On the other hand, the airflow width of the airflow blown out from the blower unit 2 of the example shown in FIG. 9 is 11 m, and it can be seen that it is significantly wider than the airflow width of the above-described general blower. . Moreover, it turns out that the airflow width of the airflow which blows off from the air blower unit 2 of the example shown in FIG. 10 is 13 m, and is large compared with the airflow width of said general air blower.

  Moreover, the reach distance of the airflow blown out from the general blower was 32 m.

  On the other hand, the reach distance of the airflow blown out from the blower unit 2 in the example shown in FIG. 9 is 27 m, which is shorter than the reach distance of the airflow blown out from the general blower. Moreover, the reach distance of the airflow blown out from the blower unit 2 in the example shown in FIG. 10 is 23 m, which is shorter than the reach distance of the airflow blown out from the general blower. However, the reach distance of the blown airflow can be adjusted by increasing the air volume of the blower unit 2, and can be adjusted to a distance equivalent to the reach distance of the airflow blown from a general blower.

  Moreover, the cross-sectional dimension of the airflow blown out from the general blower was about 2 m × vertical direction: 2 m to 4 m × vertical direction: 4 m.

  On the other hand, the cross-sectional dimensions of the air flow blown out from the blower unit 2 of the example shown in FIG. 9 are as follows: Cross section A: horizontal direction: 9 m × vertical direction: 2 m; In the cross section C, the horizontal direction is about 10 m × the vertical direction: about 2 m, and the thickness of the airflow is smaller than the airflow blown out from the general blower.

  Moreover, the cross-sectional dimension of the airflow blown out from the blower unit 2 of the example shown in FIG. 10 is about 10 m × vertical direction: 2 m in the cross section D, and about 13 m × vertical direction: 2 m in the cross section E. The thickness of the airflow is smaller than that of the airflow blown out from the general blower.

  However, the air-conditioning system 100 according to the first embodiment mainly assumes the conveyance of the conditioned airflow to a person, and considering the height of the person, the thickness of the airflow blown out from the blower unit 2 is 2m is considered sufficient.

  Further, comparing the example shown in FIG. 9 with the example shown in FIG. 10, it is recognized that the air flow unevenness at the arrival point is smaller in the case of the example shown in FIG. 10 than the shape of the wind speed distribution. The reason for this is considered to be that the airflows blown out from each blower unit 2 attract each other. By adjusting the crossing angle of the blower unit 2 in consideration of the influence of such airflows attracting each other, it is possible to eliminate airflow unevenness at the arrival point.

  Therefore, when the airflow unevenness at the arrival point is taken into consideration, the example shown in FIG. 10 is considered preferable to the example shown in FIG. 9, and the blower unit in the case where five blower units 2 are arranged in the blower unit 2. It can be said that the crossing angle of 2 is preferably about 10 ° and 25 ° in order from the reference blower unit 2S so that the crossing angle is symmetric about the reference blower unit 2S in the arrangement direction of the blower units 2. . As a result, the airflow unevenness at the arrival point can be eliminated and the temperature environment at the arrival point can be improved uniformly.

  In addition, the several blower unit 2 arrange | positioned in the air blower 20 can change an intersection angle separately for every blower unit 2, and can change suitably according to a use condition. Thereby, the use form of the air conditioning system 100 can be appropriately changed according to the use situation, such as whether the airflow spreads, that is, whether the airflow width is important or the reach distance of the blown airflow is important.

  In the above description, the blowing direction of the air flow 21C blown from the blower unit 2C which is the reference blower unit 2S, that is, the blowing direction of the blower unit 2C, the direction from the suction port 4 toward the blowout port 3, that is, the air conditioner 30. The case where the direction is the same as the direction in which the conditioned air is blown out has been described. In the air blower 20, it is also possible to set the blowing direction of the air flow blown from the reference blower unit 2S to a direction different from the direction in which the air conditioner 30 blows conditioned air.

  In this case, for example, the direction in which the front surface of the blower unit 2C faces is shifted from the direction along the short direction of the housing 1 to the direction inclined toward one end in the arrangement direction of the blower units 2, and the blowing direction of the air flow 21C is changed. In the arrangement direction of the blower units 2, the direction is set so as to be inclined toward one end side. The blower unit 2A and the blower unit 2B are arranged such that the blowout direction of the airflow 21A and the blowout direction of the airflow 21B are inclined toward one end in the arrangement direction of the blower units 2 with respect to the blowout direction of the airflow 21C. Place. Further, the blower unit 2E and the blower unit 2D are arranged such that the blowout direction of the airflow 21E and the blowout direction of the airflow 21D are inclined to the other end side in the arrangement direction of the blower units 2 with respect to the blowout direction of the airflow 21C. And place.

  Thereby, it becomes possible to finely adjust the blowing direction of the airflow blown from the blower 20.

  Moreover, in the above, although it showed about the case where it arranged in 1 row of the five air blower units 2, the number of the air blower units 2 arrange | positioned in the air blower 20 is not limited to five. In the blower 20, the same number of blower units 2 may be arranged in one row on both sides of the reference blower unit 2 </ b> S so that the crossing angle is symmetric about the reference blower unit 2 </ b> S. Thereby, the airflow width of the airflow blown from the blower 20 can be widened symmetrically with respect to the blowing direction of the reference blower unit 2S, and the above-described effects can be obtained.

  Further, the blower corresponding to the reference blower unit 2S is configured so that the crossing angle is symmetric with respect to the reference blower unit 2S by using a blower device having components corresponding to the components that generate the airflow in the blower unit 2 described above. The same number of blower devices may be arranged in one row on both sides of the vessel. In this case, the same effect as described above can be obtained.

  In the above description, the case where cold air is blown out as conditioned air from the air conditioner 30 when the factory 40 is cooled has been described as an example. However, the air conditioning system 100 according to the first embodiment includes the factory 40 Even when warm air is blown out as conditioned air from the air conditioner 30 when the interior is heated, the same effect as described above can be obtained. That is, when warm air is blown out as conditioned air from the air conditioner 30, the air conditioning system 100 can blow the warm air blown out from the air conditioner 30 over a wide range while suppressing a temperature drop. The warm air blown from one air conditioner 30 can be effectively used to heat the factory 40 at a low cost.

  As described above, the blower device 20 according to the first embodiment can blow conditioned air over a wide range with a single unit. And since the air conditioning system 100 concerning this Embodiment 1 provided with the air blower 20 can ventilate the conditioned air blown from the air conditioner 30 in a wide range, suppressing the change of temperature, one air conditioning The conditioned air blown out from the machine 30 can be effectively used to air-condition a large space at a low cost.

  The configuration described in the above embodiment shows an example of the contents of the present invention, and can be combined with another known technique, and can be combined with other configurations without departing from the gist of the present invention. The part can be omitted or changed.

  DESCRIPTION OF SYMBOLS 1 Housing | casing, 1a front surface, 1b back surface, 1c bottom surface, 2,2A, 2B, 2C, 2D, 2E Blower unit, 2S reference | standard fan unit, 3,33 blower outlet, 4 suction inlet, 5 control part, 6 operation terminal, 7 External power supply, 8 Partition plate, 9 Panel, 11 Frame, 12 Air passage, 13 Impeller, 14 Electric motor, 14a Rotating shaft, 20 Blower, 21A, 21B, 21C, 21D, 21E Airflow, 30 Air conditioner, 31 Indoor unit, 32 outdoor unit, 40 factory, 41 wall surface on one end side, 42 wall surface on the other end side, 43 worker, 100 air conditioning system, 101 processor, 102 memory.

Claims (6)

A housing having a suction port on the back side and a blower outlet on the front side;
A plurality of blowers provided with an impeller for generating an airflow and an electric motor for driving the impeller, wherein a blowout direction of the blown airflow is a direction along an axial direction of a rotation shaft of the electric motor And
With
The plurality of blower devices are arranged on both sides of the reference blower device in the axial direction of the rotating shaft of the motor of the reference blower device serving as a reference among the plurality of blower devices and in the arrangement direction of the plurality of blower devices. Being arranged in a state where the axial direction of the rotating shaft of the electric motor of the blower device intersects on the back side of the housing in a plan view,
A blower characterized by. Further comprising a partition plate provided inside the housing and partitioning the blower;
The air blower according to claim 1. A control unit for controlling the air volume of the plurality of blower devices;
The controller is configured to control the plurality of blowers to the same air volume;
The air blower according to claim 1 or 2, wherein An odd number of the plurality of blower devices;
Among the plurality of blower devices, another blower device different from the reference blower device is such that the other blower devices that are separated from the reference blower device in the arrangement direction of the plurality of blower devices are closer to the motor of the reference blower device. A large crossing angle, which is an angle formed by the axial direction of the rotating shaft and the axial direction of the rotating shaft of the electric motor of the other blower device,
The air blower according to any one of claims 1 to 3. The crossing angle of the plurality of blower devices can be changed for each blower device,
The air blower according to claim 4. An air conditioner that blows out conditioned air,
The blower according to any one of claims 1 to 4, wherein the conditioned air blown from the air conditioner is blown.
An air conditioning system comprising: