JP5489794B2 - Blower - Google Patents

Description

The present invention relates to an air blower capable of simultaneously carrying air-conditioned airflow and circulating indoor space.

  Conventionally, the air-conditioning airflow toward the indoor space has been released by a blower built in the air-conditioner body. Air-conditioned airflow from the air conditioner main body was spontaneously discharged from the air outlet connected to the air conditioner main body via the duct and diffused into the indoor space (for example, see Patent Document 1).

  In addition, in the underfloor air conditioning system, an auxiliary blower and an auxiliary heat source device are installed at a position away from the air outlet of the air conditioner to make the temperature distribution in the double underfloor space uniform, and the variation in the outlet temperature from each floor outlet The air-conditioning airflow toward the indoor space is released (for example, see Patent Document 2).

  Also, as in the perimeter fan system, there is a fan installed near the air outlet in the peri counter near the window to blow out the airflow in the ceiling direction, and the blown airflow is sucked by the air blower installed in the ceiling is there. This is intended to prevent heat load from entering the indoor space from the window surface and prevent condensation on the window surface by flowing an airflow through the window surface (for example, see Patent Document 3).

JP-A-7-91680 JP-A-8-121851 Japanese Patent Laid-Open No. 5-87362

  However, if the blown air volume and the blowing speed are small at the air-conditioning airflow outlet, the airflow of the air conditioner cannot be stirred throughout the room. In particular, the temperature difference between the vicinity of the ceiling and the floor where people are living is remarkable during heating, and the deterioration of the thermal environment in the living room area and wasteful operation of the air conditioner are problematic. In addition, when increasing the amount of air blown from the air conditioner, it is necessary to select an air conditioner having a large capacity, and there is a problem that a model having an air conditioning capacity more than necessary is selected.

  Further, in order to eliminate the temperature difference in the room, circulation may be performed by additionally installing a blower such as a cycle fan in the room. However, when a fan such as a cycle fan is additionally installed in the vicinity of the air-conditioning air flow outlet in the room for circulation, it is not possible to send all the air-conditioning air blown from the air outlet to the additional air blower for stirring. It was not possible, and it was inefficient for the purpose of circulating indoor airflow. In addition, there was a case where the newly installed cycle fan would cause a problem in the design of the indoor space.

  Further, at this time, by providing a booster fan in the middle of the duct pipe, the air-conditioning air flow speed may be increased to circulate the indoor space. However, if the booster fan is operated by applying a negative pressure to the air conditioner, the air blower of the air conditioner may break down. For this reason, it is not possible to blow an air volume that is equal to or greater than the open air volume of the air conditioner from the air outlet. In addition, increasing the flow velocity in the duct in order to increase the wind speed at the air outlet has limitations due to adverse effects such as noise generated from duct-related equipment and increased air leakage from joints. It was.

  Moreover, in the perimeter fan system, since the installation location of the blower is close to the occupant, the average wind speed of the air-conditioned air blown out from the outlet is about 5 m / s in order to suppress noise caused by the blowout air flow, and the wind speed is too high. Can not do it. Therefore, the wind speed is insufficient to circulate in a room with a large space with a high ceiling, and the flow direction of the wind is from the bottom to the top, so it is not possible to blow down the warm air accumulated near the ceiling, especially during heating. was difficult.

  This invention is made | formed in view of the above, Comprising: It aims at obtaining the air blower which can make conveyance of an air-conditioning airflow and circulation of indoor air compatible.

  In order to solve the above-described problems and achieve the object, the present invention includes a chamber box and a blower provided inside the chamber box, and the chamber box discharges an air-conditioner that discharges air-conditioned airflow. An inflow port that communicates with the outlet, a first indoor communication port that communicates with the indoor space, and a second indoor communication port are formed, and the blower moves the air in the chamber box from the first indoor communication port to the indoor space. It is characterized by being blown out.

  According to the present invention, since air is blown out toward the indoor space by the blower provided inside the chamber box, it is easy to increase the reach distance of the air flow, and thus it is easy to circulate the indoor space. In addition, even if the air volume from the first indoor communication port becomes larger than the discharge amount of the air-conditioning airflow from the air conditioner, the shortage of air volume is compensated from the second indoor communication port, so a negative pressure is applied to the air conditioner. You do n’t have to. Therefore, there is an effect that it is possible to achieve both the conveyance of the air-conditioned airflow and the circulation of the room air.

FIG. 1 is an external perspective view of a blower device according to Embodiment 1 of the present invention. FIG. 2 is a schematic diagram showing the installation state and configuration of the blower shown in FIG. FIG. 3 is a schematic diagram showing a state viewed from the indoor side in the installation state shown in FIG. FIG. 4 is a diagram showing a cross-sectional configuration in the installed state of the blower shown in FIG.

  Below, the air blower concerning embodiment of this invention is demonstrated in detail based on drawing. Note that the present invention is not limited to the embodiments.

Embodiment 1 FIG.
FIG. 1 is an external perspective view of a blower device according to Embodiment 1 of the present invention. FIG. 2 is a schematic diagram showing the installation state and configuration of the blower shown in FIG. FIG. 3 is a schematic diagram showing a state viewed from the indoor side in the installation state shown in FIG. FIG. 4 is a diagram showing a cross-sectional configuration in the installed state of the blower shown in FIG.

  The blower device 1 includes a chamber box 5, a blower 7, and a control unit (damper control unit, blower control unit) 21. The chamber box 5 is a box-shaped housing, and the inside functions as a chamber. The chamber box 5 is accommodated in the ceiling. The chamber box includes an air-conditioning airflow conveyance duct connection port (inlet) 18, an exhaust duct connection port (discharge port) 19, an indoor air suction port (second indoor communication port) 20, and an outlet (first indoor communication port) 8. Is formed.

  The air-conditioning air current conveyance duct 2 is connected to the air-conditioning air current conveyance duct connection port 18. The air-conditioning air flow duct connection port 18 communicates with the discharge port through which the air-conditioning air current of the air conditioner 3 such as a ceiling-embedded multi-air conditioner is discharged via the air-conditioning air current conveyance duct 2. The air-conditioning airflow transfer duct connection port 18 is provided with an air-conditioning airflow outlet opening / closing damper (first damper) 11 for switching opening and closing of the air-conditioning airflow transfer duct connection port 18. By closing the air-conditioning airflow outlet opening / closing damper 11, the connection between the inside of the chamber box 5 and the air-conditioning airflow conveyance duct 2 can be cut off.

  An exhaust duct 16 is connected to the exhaust duct connection port 19. The exhaust duct connection port 19 communicates with the outdoor space via the exhaust duct 16. The exhaust duct connection port 19 is provided with an exhaust port opening / closing damper (second damper) 12 for switching opening and closing of the exhaust duct connection port 19. By closing the exhaust opening / closing damper 12, the connection between the inside of the chamber box 5 and the exhaust duct 16 can be cut off.

  The indoor air inlet 20 is exposed on the surface of the indoor ceiling decorative board 10 and communicates with the indoor space. The indoor air suction port 20 is installed in parallel with the air outlet 8 in order to adjust the balance between the air volume of the air-conditioned air flowing into the chamber box 5 and the air volume blown out by the blower 1.

  The air outlet 8 is also exposed on the surface of the ceiling decorative board 10 and communicates with the indoor space. The blower outlet 8 has a shape in which two slit-like elongated members are arranged in parallel. An air outlet louver 9 is installed at the air outlet 8. The outlet louver 9 can rotate left and right around a pin provided at the center portion, and the outlet direction can be changed by rotating a rectangular cylindrical outlet. In this embodiment, the blow direction is set manually. However, in order to enable remote operation, the blow direction louver 9 is rotated by an electric motor or the like so that the blow direction can be set. Also good.

  The blower 7 has an axial flow impeller, an accompanying air passage, and an electric motor. In the air blower 1 of this Embodiment, the some air blower 7 is connected and used. The air blower 7 is provided so that the air passage communicates with the air outlet 8. When the air blowing direction by the air blower 7 is the direction indicated by the arrow X (one side), the air inside the chamber box 5 is blown. It can be blown out from the outlet 8. The plurality of blowers 7 can be individually controlled to be operated and stopped according to the required air volume and blowing position.

  The control unit 21 controls the blowing direction and operation / stop of the blower 7. When the air conditioner 3 is operated, the control unit 21 operates the blower 7 and sets the blowing direction to the direction indicated by the arrow X. When the air conditioner is stopped and the air in the indoor space is to be discharged, the blower 7 is operated and the blowing direction is set to the direction indicated by the arrow Y (the other side).

  The control unit 21 controls switching between opening and closing of the dampers 11 and 12. More specifically, when the blowing direction of the blower 7 is the direction indicated by the arrow X, the air-conditioning airflow outlet opening / closing damper 11 is opened and the exhaust opening / closing damper 12 is closed, and the blowing direction of the blower 7 is the arrow. In the direction indicated by Y, control is performed to close the air-conditioning airflow outlet opening / closing damper 11 and open the exhaust opening / closing damper 12.

  The blower device 1 is generally used by being installed inside the ceiling or the ceiling decorative board 10 on the wall. When installing the air blower 1, the ceiling decorative board 10 is opened in the shape of the air outlet 8 and the indoor air inlet 20, and the air outlet 8 and the indoor air inlet 20 of the air blower are fitted into the openings. And the air blower 1 fixes the attachment leg 15 using a nut and a washer with respect to the four suspension bolts 14 taken out from the building.

  Next, the flow of air when the blower 1 is used will be described. The air-conditioned air flow discharged from the air conditioner 3 such as a ceiling-embedded multi-air conditioner flows into the chamber box 5 through the air-conditioned air current carrying duct 2. The air-conditioned airflow that has flowed into the chamber box 5 is blown out from the air outlet 8 into the indoor space by the blower 7 installed in the vicinity of the air outlet 8. The air flow outlet angle can be adjusted by the outlet louver 9.

  At this time, when the blown air volume of the blower 1 is larger than the discharged air volume of the air-conditioned airflow from the air conditioner 3, the shortage of the air volume is compensated by taking in the indoor air from the indoor air suction port 20, and the air conditioning There is no need to apply negative pressure to the machine. Considering the circulation effect in the indoor space, the wind speed of the air flow blown out from the air outlet 8 is selected in the range of about 6.5 to 13 m / s according to the necessary air flow arrival distance. For example, when the required reach distance is 20 m, the wind speed of the airflow is preferably set to about 8 m / s.

  The blower 7 used in the present invention uses an axial flow blade. As for the blades, line flow blades, sirocco blades, etc. can achieve the above-mentioned purpose of obtaining a circulation effect in the indoor space, but when using axial flow blades, the air flow direction is reversed by rotating the blades in the reverse direction. Can be switched to. When the air blowing direction is the direction indicated by the arrow Y, the air blowing efficiency is reduced.

  When air is blown out from the air outlet 8 to obtain a circulation effect in the indoor space, the control unit 21 opens the air-conditioning airflow air outlet opening / closing damper 11 and closes the exhaust air opening / closing damper 12 to the air conditioner 3. To drive. Then, the blower 7 is operated so that the blowing direction is the direction indicated by the arrow X. Moreover, the control part 21 performs the control which makes the wind speed of the airflow from the blower outlet 8 suitable for obtaining a circulation effect by adjusting the driving | operation number and driving | operation capability of the air blower 7. FIG.

  When the air in the indoor space is taken in from the air outlet 8 and is discharged outside the building (outside the building), the control unit 21 closes the air-conditioning airflow air outlet opening / closing damper 11 and opens the exhaust air opening / closing damper 12. In addition, the operation of the air conditioner 3 is stopped. Then, the blower 7 is operated so that the blowing direction is the direction indicated by the arrow Y. Thereby, room air is taken in into the chamber box 5 from the blower outlet 8, and is discharged | emitted from the exhaust port 13 outside the room. For example, when hot air stays in the upper part of a room with a high ceiling in summer, the hot air can be efficiently discharged outside the room. Of course, the control part 21 performs control which adjusts the driving | operation number of the air blower 7, and an operation capability so that discharge | emission of the air volume suitable for discharge | emission of hot air can be performed.

  As described above, airflow is blown out from the outlet 8 using the blower 7 provided separately from the air conditioner 3, so that the arrival of the air-conditioned airflow compared to the case where only the blower included in the airconditioner 3 is used. The distance can be increased.

  Also, especially in large spaces with high ceilings, warm air tends to accumulate near the ceiling during heating, but the reach of the air-conditioned airflow can be increased, so that sufficient circulation can be performed. Therefore, it is possible to improve the operating efficiency of the air conditioner and the living room environment. Thereby, conveyance of an air-conditioning air current and circulation of indoor air can be made compatible. In addition, it is not necessary to select an air conditioner with a large capacity for circulation.

  Moreover, by making the blower outlet 8 into a slit shape, the blown airflow has a band shape, and circulation over a wider range is possible. In addition, the blower 1 main body (chamber box 5) is installed in the ceiling board or wall board, and the blowout part is exposed only in the line-like blowout part. It is not necessary to install it on the wall, and the degree of freedom in the design of the interior is improved.

  In addition, by attaching the movable nozzle (blower louver 9) to the blower outlet 8, an arbitrary blowing angle can be set regardless of the installation posture of the blower 1. Moreover, the adjustment of the blowing angle after installation of the blower 1 is easy.

  Moreover, the axial flow blade can change the flow direction of the air flow from blowing to suction by reversing the rotation direction. Therefore, the air blower 1 installed near the ceiling blocks the inflow of the air-conditioning airflow from the air conditioner 3 with the dampers 11 and 12 and switches to connect to the exhaust duct 16 so that hot air is accumulated near the ceiling. In summer, it can be used as an exhaust device for discharging hot air. Further, by individually controlling the operation and stop of the plurality of blowers 7 connected to each other, it is possible to adjust the amount of blown air and blow out at an arbitrary blowing position.

  In addition, you may provide the damper (3rd damper, not shown) which switches opening and closing of the indoor air suction inlet 20. FIG. When exhausting indoor air with the blower 1, the indoor air suction port 20 is closed by the third damper, so that the indoor air sucked from the air outlet 8 is returned to the indoor space from the indoor air suction port 20. Can be prevented, and the exhaust efficiency of room air can be improved. Moreover, the control part 21 may be provided in the air conditioner 3, and may be provided separately from the air conditioner 3 and the air blower 1. FIG. Moreover, the air blower 2 may be arrange | positioned not only in the ceiling and the wall but under the floor.

  As described above, the blower according to the present invention is useful for indoor space circulation using air-conditioned airflow.

DESCRIPTION OF SYMBOLS 1 Air blower 2 Air-conditioning airflow conveyance duct 3 Air conditioner 5 Chamber box 7 Air blower 8 Air outlet (1st indoor communication port)
9 Outlet louver 10 Ceiling veneer board 11 Air-conditioning airflow outlet opening / closing damper (first damper)
12 Exhaust opening / closing damper (second damper)
13 Exhaust port 14 Bolt 15 Mounting foot 16 Exhaust duct 18 Air conditioning airflow conveyance duct connection port (inlet)
19 Exhaust duct connection port (discharge port)
20 Indoor air inlet (second indoor communication port)
21 Control unit X, Y arrows

Claims (7)

A chamber box;
A blower provided inside the chamber box and having an axial flow impeller ,
The chamber box communicates with an inflow port that communicates with a discharge port of an air conditioner that discharges air-conditioned airflow, a first indoor communication port that communicates with an indoor space, a second indoor communication port, and an outdoor space. A discharge port for discharging the air inside the chamber box to the outdoor space, is formed,
The blower is provided immediately above the first indoor communication port, and blows out air in the chamber box from the first indoor communication port toward the indoor space .
The second indoor communication port is a position avoiding a region where the blower is projected in a direction along the rotation axis of the axial flow impeller, and is located at a position opposite to the inflow port with the blower interposed therebetween. Formed,
The blower is capable of switching a blowing direction of air, and by setting the blowing direction to one side, the air in the chamber box is blown out from the first indoor communication port to the indoor space, and the blowing direction is set to the other side. blower according to claim Rukoto allowed to ingest the indoor air inside the chamber box from the first chamber communicating port by. A first damper for switching opening and closing of the inlet;
The blower according to claim 1 , further comprising: a second damper that switches between opening and closing of the discharge port. The blower according to claim 2 , further comprising a damper control unit that controls opening and closing of the first damper and the second damper in accordance with a blowing direction of the blower. The damper control unit opens the first damper and closes the second damper when the blowing direction of the blower is one side, and closes the second damper, and when the blowing direction of the blower is the other side, The blower according to claim 3 , wherein control is performed to close the first damper and open the second damper. A plurality of the blowers are provided inside the chamber box,
The blower according to any one of claims 1 to 4 , further comprising a blower control unit capable of individually controlling operation / stop of the plurality of blowers. The said chamber box is accommodated in a ceiling, The air blower as described in any one of Claims 1-5 characterized by the above-mentioned. The air blower according to any one of claims 1 to 6 , further comprising a louver provided at the first indoor communication port and capable of adjusting an angle of an air flow blown from the first indoor communication port. .

Images