Blower system

Abstract

This disclosure provides a ventilation system capable of generating a surface airflow that spreads throughout the entire room. [Solution] The ventilation system in this disclosure comprises a first ventilation device installed in a room, a second ventilation device installed in the room and positioned opposite the first ventilation device, and control means for adjusting the airflow of the first ventilation device and the second ventilation device, wherein the airflow supplied from the first ventilation device and the airflow supplied from the second ventilation device collide between the first ventilation device and the second ventilation device to form a surface airflow.

Description

Technical Field

[0001] The present disclosure relates to a ventilation system.

Background Art

[0002] Patent Document 1 discloses a blower device having a housing provided with a high-pressure air generating section for converting the sucked air into high-pressure air, a chamber disposed opposite to the housing, a nozzle provided with an air outlet for blowing out high-pressure air on a side portion of a cylindrical body, and a duct not provided with an air outlet on the cylindrical body, the nozzle and the duct being alternately arranged at intervals, the nozzle and the duct being communicated with each other inside at one surface where the housing and the chamber face each other at both upper and lower ends, one end of the nozzle being supplied with high-pressure air from the housing, the other end of the nozzle being supplied with high-pressure air from the housing through the duct and the chamber, an induced air passage being formed by a gap between the nozzle and the duct, and performing blowing.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] The present disclosure provides a ventilation system capable of generating a surface air flow that spreads throughout a room.

Means for Solving the Problems

[0005] The ventilation system in the present disclosure includes a first blower device provided in a room, a second blower device provided in the room and disposed opposite to the first blower device, and control means for adjusting the air volume of the first blower device and the second blower device, and colliding an air flow blown from the first blower device and an air flow blown from the second blower device between the first blower device and the second blower device to form a surface air flow.

Effects of the Invention

[0006] According to this disclosure, the airflow from the first blower and the airflow from the second blower can be made to collide between the first and second blowers to form a surface airflow, thereby generating an airflow that spreads throughout the entire room. As a result, comfortable ventilation can be provided to people in the room. [Brief explanation of the drawing]

[0007] [Figure 1] Schematic diagram showing the air blowing system in Embodiment 1 [Figure 2] Block diagram showing the control configuration in Embodiment 1 [Figure 3] This diagram illustrates the state in which a surface airflow is formed approximately in the center in the vertical direction by the blowing system in Embodiment 1. [Figure 4] This diagram illustrates the state in which a surface airflow is formed upward in the vertical direction by the blowing system in Embodiment 1. [Figure 5] This diagram illustrates the state in which a surface airflow is formed downwards in the vertical direction by the blowing system in Embodiment 1. [Figure 6] Block diagram showing the control configuration in a modified example. [Figure 7] Schematic diagram showing the air blowing system in Embodiment 2 [Modes for carrying out the invention]

[0008] (Knowledge and other information that formed the basis of this disclosure) At the time the inventors conceived of this disclosure, there was a blower that could maintain the amount of air coming out of the chamber-side outlet, and even if the length of the nozzle as the blower unit was increased, the amount of air blown out from the upper outlet would not decrease, thus producing a uniform airflow from both the upper and lower outlets. However, the inventors discovered that conventional technologies generate airflow in only one direction within a room, making it impossible to generate a surface airflow that spreads throughout the entire room. To solve this problem, they arrived at the subject matter of this disclosure. Therefore, this disclosure provides a ventilation system capable of generating a surface airflow that spreads throughout the entire room.

[0009] The embodiments will be described in detail below with reference to the drawings. However, unnecessary details may be omitted. For example, detailed explanations of already well-known matters or redundant explanations of substantially identical configurations may be omitted. This is to avoid the following explanation becoming unnecessarily verbose and to facilitate understanding for those skilled in the art. The attached drawings and the following description are provided to enable those skilled in the art to fully understand this disclosure and are not intended to limit the subject matter described in the claims.

[0010] (Embodiment 1) Embodiment 1 will be described below with reference to the drawings.

[0011] [1-1. Structure] Figure 1 is a schematic diagram showing the air blowing system in Embodiment 1. As shown in Figure 1, the ventilation system 1 comprises a first ventilation device 10 and a second ventilation device 20. The first blower 10 houses a first fan 12 which is rotationally driven by a fan motor 11. The second blower 20 houses a second fan 22 which is rotationally driven by a fan motor 21. The first blower 10 is mounted on the ceiling 5 of the room R. The second blower 20 is mounted on the floor 6 of the room R.

[0012] The first blower device 10 and the second blower device 20 are arranged so as to face each other in the vertical direction. That is, the rotation axis 12a of the first fan 12 of the first blower device and the rotation axis 22a of the second fan 22 of the second blower device 20 are arranged to coincide in the vertical direction.

[0013] For example, a light emitting part may be provided in the first blower device 10, and a positioning part indicating the light receiving position from the light emitting part of the first blower device 10 may be provided in the second blower device 20. Then, by positioning the light from the light emitting part of the first blower device 10 at the positioning part of the second blower device 20, the positioning of the second blower device 20 can be easily performed. In this case, by providing a plurality of light emitting parts and positioning parts, more accurate positioning can be performed.

[0014] Above the ceiling 5 of the first blower device 10, a duct 30 installed in the ceiling 5 is connected. The duct 30 opens to the outside, and it is possible to take in outside air into the duct 30. In the middle part of the duct 30, a total heat exchanger 31 and an air cleaning unit 32 are provided respectively. The first blower device 10 may be configured to blow only the outside air sent from the duct 30, or may be configured to take in and blow the air in the room R. Further, by providing a switching mechanism in the first blower device 10, it may be configured to be able to switch between blowing only the outside air or only the air in the room R through the duct 30.

[0015] In the room R, a controller 34 for operating the operations of the first fan 12, the second fan 22, the total heat exchanger 31 and the air cleaning unit 32 is provided. On the ceiling 5 part of the room R, a human presence sensor � for detecting a person in the room R is attached.

[0016] Next, the control configuration in Embodiment 1 will be described. Figure 2 is a block diagram showing the control configuration in Embodiment 1. As shown in Figure 2, the blower system 1 includes a control device 40. In this embodiment, the control device 40 is provided in the controller 34. The control device 40 includes a processor 41 such as a CPU (Central Processing Unit) or MPU (Micro Processor Unit), a memory 42, and an interface circuit (not shown) for connecting other devices and sensors.

[0017] Memory 42 is a storage device that stores programs and data. Memory 42 has a non-volatile storage area and stores a predetermined control program. Memory 42 is composed of, for example, ROM (Read Only Memory) or RAM (Random Access Memory). The processor 41 controls each part of the blower system 1 by reading and operating the control program stored in the memory 42.

[0018] The control device 40 receives detection information from the human presence sensor 33. The control device 40 is connected to the first fan 12, the second fan 22, the total heat exchanger 31, and the air purification unit 32, and the processor 41 drives and controls the first fan 12, the second fan 22, the total heat exchanger 31, and the air purification unit 32.

[0019] [1-2. Operation] Next, the operation of Embodiment 1 will be described. First, the processor 41 drives the first fan 12 and the second fan 22, thereby driving the first blower 10 and the second blower 20. Figure 3 is an explanatory diagram showing the state in which the surface airflow produced by the blower system in Embodiment 1 is formed approximately in the center in the vertical direction. Figure 4 is an explanatory diagram showing the state in which the surface airflow produced by the blower system in Embodiment 1 is formed upward in the vertical direction. Figure 5 is an explanatory diagram showing the state in which the surface airflow produced by the blower system in Embodiment 1 is formed downward in the vertical direction.

[0020] The program drives the output of the first fan 12 and the output of the second fan 22 to be the same, so that the airflows blown out from the first blower 10 and the second blower 20 collide approximately in the center of the room R in the vertical direction, as shown in Figure 3. The colliding airflows flow approximately horizontally in the room R, forming a nearly horizontal surface airflow A.

[0021] Furthermore, the processor 41 controls the output of the second fan 22 to be greater than the output of the first fan 12, so that, as shown in Figure 4, the surface airflow A is formed above the approximate vertical center of the room R. Conversely, by controlling the output of the first fan 12 to be greater than the output of the second fan 22 using the processor 41, the surface airflow A is formed below approximately the vertical center of the room R, as shown in Figure 5. In this way, the processor 41 controls the output of the first fan 12 and the output of the second fan 22, thereby allowing arbitrary control of the position where the surface airflow A is formed in the vertical direction of the room R. Furthermore, by controlling the output of the first fan 12 and the second fan 22 to be arbitrarily varied by the processor 41, it is also possible to generate an airflow in which the surface airflow A is arbitrarily moved in the vertical direction of the room R.

[0022] In this case, if the processor 41 of the control device 40 determines, based on the detection information from the human presence sensor 33, that there are no people near the first blower 10 and the second blower 20, it controls the output of the first fan 12 and the second fan 22 in the same way to form a surface airflow A in the approximately central part of the room R in the vertical direction. On the other hand, if the processor 41 determines, based on the detection information from the human presence sensor 33, that a person is present near the first blower 10 and the second blower 20, it controls the output of the second fan 22 to be greater than the output of the first fan 12, thereby forming a surface airflow A above approximately the center of the room R in the vertical direction. Preferably, the height of this surface airflow A is formed at a position higher than the height of a person. This allows the surface airflow A formed by the first blower 10 and the second blower 20 to be controlled so as not to directly hit people, thereby suppressing any loss of comfort for people.

[0023] Furthermore, if the processor 41 determines, based on the detection information from the human presence sensor 33, that a person is present near the first blower 10 and the second blower 20, it may similarly control the output of the first fan 12 and the second fan 22, and may also reduce the output of the first fan 12 and the second fan 22. In this case, the surface airflow A will hit a person, but since the airflow can be weakened, it is possible to suppress any impact on the person's comfort.

[0024] Furthermore, when heat exchange is performed by the total heat exchanger 31, the processor 41 similarly controls the output of the first fan 12 and the output of the second fan 22 to form a surface airflow A in the approximately central part of the room R in the vertical direction. On the other hand, when heat exchange is not performed by the total heat exchanger 31, the processor 41 controls the output of the second fan 22 to be greater than the output of the first fan 12, thereby forming a surface airflow A above approximately the center in the vertical direction of the room R. If heat exchange is not performed by the total heat exchanger 31, outside air is sent directly to the room R, resulting in cold air flowing into the room R in winter and warm air flowing in during summer. Therefore, if heat exchange is not performed by the total heat exchanger 31, the comfort of people can be ensured by forming the surface airflow A at an upward position so that outside air does not directly hit people.

[0025] [1-3. Effects, etc.] As described above, the ventilation system 1 in this embodiment comprises a first ventilation device 10 provided in the room R, a second ventilation device 20 provided in the room R and positioned opposite the first ventilation device 10, and a control device 40 (control means) for adjusting the airflow of the first ventilation device 10 and the second ventilation device 20, and forms a surface airflow A by causing the airflow supplied from the first ventilation device 10 and the airflow supplied from the second ventilation device 20 to collide between the first ventilation device 10 and the second ventilation device 20. This allows the airflow from the first blower 10 and the airflow from the second blower 20 to collide between the two blowers 10 and 20, forming a surface airflow A that spreads throughout the entire room R. Therefore, it is possible to provide comfortable ventilation to the people in the room R.

[0026] Furthermore, in the ventilation system 1 of this embodiment, the first ventilation device 10 is located on the ceiling 5 of the room R, and the second ventilation device 20 is located on the floor surface 6 of the room R. As a result, the first blower 10 blows air downwards into the room R, and the second blower 20 blows air upwards into the room R, causing the airflows to collide and generating a surface airflow A that spreads approximately horizontally within the room R.

[0027] Furthermore, in the ventilation system 1 of this embodiment, a duct 30 that communicates with the outside is connected to the first ventilation device 10. This allows the first blower 10 to blow outside air into the room R.

[0028] Furthermore, in the ventilation system 1 of this embodiment, at least one of a total heat exchanger 31 or an air purification unit 32 is installed in the duct 30. As a result, the first blower 10 can blow air into the room R that has had its outside temperature adjusted by the total heat exchanger 31, or air that has been purified by the air purification unit 32.

[0029] Furthermore, in the ventilation system 1 of this embodiment, the first ventilation device 10 and the second ventilation device 20 are arranged opposite each other in the left-right direction of the room R. As a result, the first blower 10 and the second blower 20 blow air toward the sides of the room R, causing the airflows to collide and generating a surface airflow A that spreads approximately vertically across the room R.

[0030] Furthermore, in the blower system 1 of this embodiment, the control device 40 (control means) can change the position where the surface airflow A is formed by controlling the airflow of the first blower 10 and the second blower 20. As a result, the control device 40 can control the airflow of the first blower 10 and the second blower 20, thereby arbitrarily changing the location where the surface airflow A is generated in the room R. Therefore, it is possible to provide comfortable airflow according to the needs of the people in the room R.

[0031] Furthermore, in the ventilation system 1 of this embodiment, a human presence sensor 33 is installed in the room R, and the control device 40 (control means) controls the airflow of the first ventilation device 10 and the second ventilation device 20 according to the person detected by the human presence sensor 33. This allows for comfortable ventilation according to the people in the room R by controlling the airflow of the first blower 10 and the second blower 20 in accordance with the people detected by the motion sensor 33.

[0032] (modified version) Next, we will describe some modifications of this disclosure. Figure 6 is a block diagram showing the control configuration in a modified example. As shown in Figure 6, this modified example shows a case where the control device 40 is installed on the server 60 instead of the controller 34. In the blower system 1, the controller 34 is configured to communicate with the server 60 via a network NW. The controller 34 includes a controller communication unit 43 that communicates with the server 60. The server 60 includes a control device 40 and a server communication unit 61 that communicates with the controller 34. The configuration of the control device is the same as that shown in Figure 2, so its explanation will be omitted.

[0033] The communication unit receives detection information from the motion sensor 33, and this detection information is transmitted to the server communication unit 61 via the network NW. Based on the detection information from the human presence sensor 33, the server's control device 40 transmits drive signals for the first fan 12, the second fan 22, the total heat exchanger 31, and the air purification unit 32 to the controller 34 via the server communication unit 61, the network NW, and the controller communication unit 43, thereby controlling the operation of the first fan 12, the second fan 22, the total heat exchanger 31, and the air purification unit 32.

[0034] (Embodiment 2) Next, Embodiment 2 of the present disclosure will be described. [2-1. Structure] Figure 7 is a schematic diagram showing the air blowing system in Embodiment 2. As shown in Figure 7, in this embodiment, the first blower 10 and the second blower 20 are configured as a single unit. Specifically, a plurality of rod-shaped support members 50 are arranged between the lower outer circumference of the first blower 10 and the upper outer circumference of the second blower 20 with a predetermined gap in the circumferential direction. The first blower 10 and the second blower 20 are supported apart in the vertical direction via the support members 50. The air supplied from the first blower 10 and the second blower 20 is configured to be blown out to the outside of each support member 50 through the gap between each support member 50.

[0035] The ventilation system 1 can be installed at any location in the room R. For example, it may be installed on the floor surface 6 of the room R, or it may be installed by mounting it on a wall surface in the room R. The control configuration of the blower system 1 is the same as that of Embodiment 1. Furthermore, the motion sensor 33 may be installed in the room R as in Embodiment 1, or it may be installed in either the first blower 10 or the second blower 20.

[0036] [2-2. Operation] Next, the operation of Embodiment 2 will be described. In this embodiment as well, similar to Embodiment 1, the first fan 12 of the first blower 10 and the second fan 22 of the second blower 20 are operated to cause the air supplied from the first blower 10 and the air supplied from the second blower 20 to collide at approximately the center of the first blower 10 and the second blower 20. The colliding airflow flows through the gaps between each support member 50 in a substantially horizontal direction within the room R, thereby forming a substantially horizontal surface airflow A.

[0037] [2-3. Effects, etc.] As described above, in this embodiment, the blower system 1 consists of a first blower 10 and a second blower 20 which are configured as a single unit. As a result, by integrating the first blower 10 and the second blower 20, a surface airflow A can be easily formed. Furthermore, because they are integrated, the blower system 1 can be easily moved and installed in any location within the room R.

[0038] (Other embodiments) As described above, Embodiment 1 has been presented as an example disclosed in this application. However, the technology in this disclosure is not limited to this and can be applied to embodiments that have been modified, replaced, added, or omitted. Furthermore, it is possible to create new embodiments by combining the components described in Embodiment 1.

[0039] In Embodiment 1, the processor 41, based on the detection information from the human presence sensor 33, determines that a person is present near the first blower 10 and the second blower 20. In this embodiment, the processor 41 controls the output of the first fan 12 and the second fan 22 similarly, and also controls the output of the first fan 12 and the second fan 22 to a reduced level. However, this disclosure is not limited to this embodiment. For example, if the processor 41 determines, based on the detection information from the human presence sensor 33, that a person is present near the first blower 10 and the second blower 20, it may, contrary to the example of Embodiment 1, control the output of the first fan 12 and the output of the second fan 22 in the same way, and also control the output of the first fan 12 and the second fan 22 to be significantly increased. Since some people may find it more comfortable to feel the surface airflow A, comfort can be enhanced by increasing the output of the first fan 12 and the second fan 22, thereby increasing the airflow of surface airflow A.

[0040] (Note) Based on the above description of embodiments, the following technologies are disclosed.

[0041] (Technical 1) A ventilation system comprising: a first ventilation device installed in a room; a second ventilation device installed in the room and positioned opposite the first ventilation device; and control means for adjusting the airflow of the first ventilation device and the second ventilation device, wherein the airflow supplied from the first ventilation device and the airflow supplied from the second ventilation device collide between the first ventilation device and the second ventilation device to form a surface airflow. With this configuration, the airflow from the first blower and the airflow from the second blower can collide between the two blowers to form a surface airflow, generating an airflow that spreads throughout the entire room. Therefore, it is possible to provide comfortable ventilation to people in the room.

[0042] (Technical 2) The ventilation system according to Technical 1, wherein the first ventilation device is located on the ceiling of the room and the second ventilation device is located on the floor of the room. With this configuration, the first blower blows air downwards into the room, and the second blower blows air upwards into the room, causing the airflows to collide and generating a surface airflow that spreads approximately horizontally within the room.

[0043] (Technical 3) The ventilation system according to Technical 2, wherein the first ventilation device is connected to a duct that communicates with the outside. With this configuration, the first blower can blow outside air into the room.

[0044] (Technical 4) The ventilation system according to Technical 3, wherein the duct is equipped with at least one of a total heat exchanger, an air purification unit, or an air conditioning device. With this configuration, the first blower can deliver air into the room whose outside temperature has been adjusted by a total heat exchanger, air that has been purified by an air purification unit, or air whose temperature has been controlled by an air conditioning system.

[0045] (Technical 5) The ventilation system according to Technical 1, wherein the first ventilation device and the second ventilation device are arranged opposite each other in the left-right direction within the room. With this configuration, the first and second blowers blow air sideways into the room, causing the airflows to collide and generating a surface airflow that spreads approximately vertically within the room.

[0046] (Technical 6) The ventilation system according to Technical 1, wherein the first ventilation device and the second ventilation device are configured as a single unit. With this configuration, a surface airflow can be easily formed by integrating the first and second blowers. Furthermore, because they are integrated, the blower system can be easily moved and installed in any location within the room.

[0047] (Technical 7) The blowing system according to any one of Technical 1 to 6, wherein the control means can change the position where the surface airflow is formed by controlling the airflow of the first blower and the second blower. With this configuration, the control means allows the airflow rate of the first and second blowers to be controlled, thereby arbitrarily changing the location where surface airflow is generated in the room. As a result, comfortable airflow can be provided according to the needs of the people in the room.

[0048] (Technical 8) The ventilation system according to any one of Technical 1 to Technical 7, wherein a motion sensor is installed in the room, and the control means controls the airflow of the first ventilation device and the second ventilation device according to the person detected by the motion sensor. With this configuration, by controlling the airflow of the first and second blowers according to the person detected by the motion sensor, it is possible to provide comfortable airflow according to the person in the room. [Industrial applicability]

[0049] This disclosure is suitably applicable as a ventilation system capable of generating a surface airflow that spreads throughout the entire room. [Explanation of Symbols]

[0050] 1. Blower System 5 Ceiling 6 Floor surface 10 First blower 11 Fan motor 12 First Fan 12a Rotation axis 20 Second blower 21 Fan motor 22 Second Fan 22a Rotation axis 30 ducts 31 Total heat exchanger 32 Air Purifying Units 33 motion sensors 34 controllers 40 Control device 41 processors 42 memory 43 Controller Communication Unit 50 Support member 60 servers 61 Server Communication Unit R Indoor A-face airflow NW Network

Claims

1. A first ventilation device installed inside the room, A second blower is provided inside the room and positioned opposite the first blower, The system comprises the first blower and a control means for adjusting the airflow of the second blower, The airflow supplied from the first blower and the airflow supplied from the second blower are made to collide between the first blower and the second blower to form a surface airflow. Ventilation system.

2. The first blower is positioned on the ceiling of the room, and the second blower is positioned on the floor of the room. The air blowing system according to claim 1.

3. The first blower is connected to a duct that communicates with the outside. The air blowing system according to claim 2.

4. The duct is equipped with at least one of a total heat exchanger, an air purification unit, or an air conditioning system. The air blowing system according to claim 3.

5. The first blower and the second blower are arranged facing each other in the left-right direction within the room. The air blowing system according to claim 1.

6. The first blower and the second blower are configured as an integrated unit. The air blowing system according to claim 1.

7. The control means is capable of changing the position where the surface airflow is formed by controlling the airflow rates of the first and second blowers. The air blowing system according to any one of claims 1 to 6.

8. A motion sensor is installed in the aforementioned room. The control means controls the airflow of the first and second blowers according to the person detected by the human presence sensor. The air blowing system according to claim 1.

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