JP3024777B2 - Duct air conditioner - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a duct type air conditioner.

2. Description of the Related Art Recently, as one of the air conditioning systems, a method of arranging a duct in each room without providing the indoor unit to perform air conditioning has been adopted from the direction of providing an indoor unit in each room. As shown in FIG. 2, such a duct-type air conditioner (hereinafter, referred to as a duct-type air conditioner) includes an air conditioner in which a heat exchanger 22 and a blower 23 that ventilates the heat exchanger 22 are installed inside a ceiling 40. The main unit 24 is installed, and the ceiling surface is one of the rooms
Suction chamber 26 with suction grill 25 provided on 28
And the outlet chamber 29 with the outlet grill 27 in the same room
Are connected to the air conditioner body 24 by ducts 30, respectively. Therefore, when installing in a plurality of rooms, a suction chamber (not shown) having a suction grill attached to the ceiling surface of each room and a blowing chamber 29a having a blowing grill 27a are installed. A method is used in which attachment ports 32a and 32b for connecting the duct 30 are provided in the blow-out chamber 31 and the blown air is diverted. An L-shaped hanging member 35 (not shown except for the hanging member of the blowing chamber 29) is fixed to an outer box of each of the units such as the suction chamber 26, the blowing chamber 29, and the air conditioner main body 24. It is suspended from a beam (not shown) or the like by a nut 36 and is installed. Further, for the case where the air conditioning load of a plurality of rooms is different, the blowout chamber 29,
Dampers 34a, 34b were installed at the respective duct connection ports 33a, 33b of the blow-out chamber 29a, and the air volume was adjusted manually or automatically by adjusting the degree of opening of the dampers 34a, 34b to match the respective air conditioning load. I was able to drive.

In such a conventional configuration, the hanging installation work for each unit such as the suction chamber 26, the blowing chamber 29, the air conditioner main body 24 and the like, the suction grill 25 and the blowing grill 27 When installing in multiple rooms, not only the amount of work such as the hanging installation work increases, but also adjust the opening of the dampers 34a and 34b to reduce the air volume. And the outlet grill 27 (or the outlet grill 27
The blowout wind speed in a) was reduced, and the amount of blown air reaching the floor surface was reduced, so that there was a problem that a comfortable temperature distribution could not be obtained.

The present invention solves such a problem, and reduces the amount of work for hanging installation of each unit of the duct type air conditioner and opening work on the ceiling surface, and adjusts the opening degree of the damper. It is an object of the present invention to provide a device that secures a blowing air speed from a blowing grill even when the air volume is reduced, and provides a comfortable temperature distribution.

Means for Solving the Problems In order to solve this problem, the present invention relates to a blower air passage that communicates with a main body of an air conditioner through a duct to a blower outlet through a damper, and an indoor circulation system. Having a blower for circulation, forming a circulation suction air passage and a circulation blow air passage from the circulation suction port to the circulation blow outlet, and between the blow air blow air passage and the indoor circulation blower. A partition plate is provided, and a ventilation suction air passage having a ventilation suction port adjacent to the circulation suction port corresponding to a suction duct communicating with the air conditioner body by a duct is provided.

Operation With this configuration, the blow-out air passage and the blow-in suction air passage are in the same chamber, and the blow-out air outlet and the blow-in air inlet are provided in the same grill, and the hanging installation work and the ceiling The work of opening the surface can be performed in one place for each room. Next, even if the opening degree of the damper is adjusted to reduce the air flow from the air conditioner body and the blowing air speed from the blower outlet decreases, the circulation blower communicating with the circulation blower air passage of the indoor circulation blower can be used. The wind speed from the outlet is added, and the wind speed from the grill is secured.

Embodiment An embodiment of the present invention will be described below with reference to FIG. That is, the chamber 1 connected from the air conditioner body
An outlet duct mounting port 3 is provided on one side surface 2 of the air conditioner, and the outlet duct mounting port 3 is connected to an outlet duct 4 connected to the outlet side of an air conditioner body (not shown). Further, a damper 5 for adjusting the amount of air is provided at the outlet 3 for the air duct, and the opening of the damper 5 adjusts the amount of air sent from the air conditioner body. A circulation blower 6 circulating between the inside of the chamber 1 and the room is provided. An air passage is provided between a circulation suction air passage 7 of the circulation blower 6 and a circulation blow air passage 8. The air conditioner further includes an upper partition plate 10 for defining the air passage and a blow-out air passage 9 communicating with the blow-out duct 4 connected to the air conditioner main body. A lower partition plate 11 that constitutes the other side surface of the circulation suction air passage 7 and the circulation blow air passage 8 is provided. Further, on one side 2 of the chamber 1, there is provided a box-shaped suction air passage 12 for air blowing, and a suction duct mounting port 13 communicating with the air suction air passage 12 for air blowing. The suction duct 14 is connected to the suction side (not shown). In addition, the suction air passage 12 for ventilation is provided with a partition plate 12a inside the chamber 1 so that the suction air passage 7 for circulation
And a suction air passage 12 for ventilation, and a suction duct mounting port
13 is provided on one side surface 2. The chamber 1
A grill 15 is attached to the lower surface of the grill 15. A circulation suction port 16 is provided in a portion of the grill 15 communicating with the circulation suction air passage 7, and a circulation blow port is provided in a communication portion with the circulation outlet air passage 8. Exit 17
In addition, a communication port with the blowing air passage 9 is provided at a blowing outlet 18.
And a communication portion with the air suction passage 9 for air blowing is provided with a suction air inlet 19, and the circulation air outlet 17 is provided in the circulation air outlet 17,
Further, a blowing direction changing plate 20 is provided at the blowing outlet 18.

In the above configuration, the air sent from the main body air conditioner through the blow duct 4 is adjusted in air volume by the damper 5 for adjusting the air volume, the air direction is determined by the air direction changing plate 20 for air flow through the air flow path 9 for air blow, and the air blow It blows out from the exit 18 into the room. On the other hand, the air that has flowed in from the circulation suction port 16 by the circulation blower 6 flows through the circulation suction air path 7 into the circulation blow air path 8, and the air direction is determined by the circulation wind direction change plate 21, and is blown out from the circulation air outlet 17. Is done. Furthermore, the indoor air flows in from the air inlet 19 for air blowing, and flows from the air inlet 12 for air blowing to the main air conditioner through the air inlet 13. With the above ventilation, both the blow-off air passage 9 and the blow-in suction air passage 12 are in the chamber 1, and the blow-off air outlet 18 and the blow-in air inlet 19 are both provided in the grill 15. In addition, the hanging installation work and the ceiling opening work can be performed in one place for each room. In addition, the air intake air passage 12 for ventilation may be of an integral type partitioned and formed inside the chamber 1, or the air intake air passage 12 for air ventilation may be separated from the chamber 1 and formed as an independent housing. It may be attached. Next, when the opening degree of the damper 5 is adjusted to reduce the amount of air blown from the air conditioner main body, the blowing air speed from the blowing air outlet 18 is reduced. The blowing wind speed is added, and the blowing wind speed from the grill 15 is secured in a sufficient amount to reach the floor.

Advantageous Effects of the Invention As is clear from the description of the embodiment, according to the present invention, the blowing air path for blowing and the suction air path for blowing are in the same chamber, and the blowing air outlet and the blowing air inlet are the same grill. In addition to this, hanging installation work and ceiling surface opening work can be performed in one place for each room, improving workability.In addition, the blower air outlet and the blower air intake are on the same grill. Because they are summarized, the interior is improved. In addition, since the blowing air speed from the grill is increased by the circulation blower, even if the opening of the air flow adjusting damper is adjusted to reduce the air flow from the air conditioner body, the blowing air speed from the grill reaches the floor surface In this way, a sufficient amount of air is secured and the blown air reaches the floor surface, and a comfortable temperature distribution is obtained. Furthermore, the air outlet for air blowing and the air inlet for air blowing are on the same grill, and even if the interval is short, short circuit does not occur. The air direction changing plate for circulation and the air direction changing plate for air blowing can easily adjust the air direction after installation. It has a great effect.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a duct type air conditioner according to one embodiment of the present invention, and FIG. 2 is a perspective view showing a conventional duct type air conditioner. 1 ... chamber, 6 ... indoor circulation blower, 7 ... circulation suction airway, 8 ... circulation airflow path, 9 ... ventilation airflow path, 15 ... grill, 16 ... circulation Suction port, 17: Circulation outlet, 18: Blower outlet, 19 ... Blower inlet.

Claims (1)

(57) [Claims] A chamber has a blower air passage that communicates with a main body of an air conditioner through a duct and leads to a blower outlet through a damper, and a blower for indoor circulation. Forming a circulation suction air passage and a circulation blow air passage leading to an air outlet, providing a partition plate between the blow air blow air passage and the indoor circulation blower, and communicating with the air conditioner main body by a duct; A duct-type air conditioner comprising a blower suction air passage provided with a blower suction port adjacent to the circulation suction port corresponding to the suction duct.