JPH076640B2 - Ventilation air conditioner - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation air conditioner for performing ventilation and cooling / heating of a building.

2. Description of the Related Art Conventionally, this type of ventilation air conditioner has a configuration as shown in FIG. That is, the main body 100 includes a circulation passage 103 that connects the indoor suction port 101 and the indoor discharge port 102, and the indoor suction port.
An exhaust passage 105 that communicates the 101 and the outdoor discharge port 104, and an air supply passage that communicates the outdoor suction port 106 and the indoor discharge port 102.
107 and is divided, and also has the blades for blowing 108 inside.
And a blower motor 109 for rotating them, a heat exchange coil 110 for heating and cooling, an exhaust blade 111, an air supply blade 112, and a ventilation motor 113 for rotating them, and the exhaust passage 105. And a heat exchanger at the intersection of the air supply passage 107 and
Had 114. The circulation passage 103 and the air supply passage 107
Is partitioned by a partition wall 115, and the suction port 117 and the indoor side suction port 101 provided in each room communicate with each other through a return air duct 116, and the discharge port 119 and the indoor side discharge port 102 provided in each room. Were connected by air supply duct 118.

In such a configuration, when the blower motor 109 and the ventilation motor 113 are operated, the room air is sucked into the main body 100 through the suction port 117 and the return air duct 116 as shown by an arrow U →.
Part of it is exhausted to the outside through the heat exchanger 114 by the exhaust blade 111 as shown by arrow V →, and most of it is the blower blade 10.
8 is sucked by the air supply vanes 112 and is sucked from the outside by the air supply blades 112 as shown by arrow W ... → Together with the outdoor air that has been supplied through the heat exchanger 114 and heated or cooled by the heat exchange coil 110. Then, it was discharged through the air supply duct 118 from the discharge port 119 provided in each room as shown by arrow X →.

(For example, Journal of Air Conditioning and Sanitary Engineering ('86 .1
0.2-10.4 Niigata) P.197-P200) Problems to be Solved by the Invention In such a conventional configuration, the indoor air circulated by the blower blades 108 and the outdoor air supplied by the air supply blades 112 are used. However, since the discharge side of the blower blade 108 and the heat exchange coil 110 that is also a ventilation resistor join together, the indoor air and the outdoor air are pressed against each other with a high pressure, and the air volume of one air is adjusted. When doing, it was very difficult to control the air volume because it was affected by the other air. In addition, the merging resistance is increased due to the merging at a high pressure, which is a cause of reducing the respective air volumes.

The present invention solves such a problem, and an object of the present invention is to provide a ventilation air conditioner capable of independently and reliably adjusting the air volumes of the circulating indoor air and the outdoor air to be supplied.

Means for Solving the Problems In order to solve this problem, the present invention provides a circulation passage that connects an indoor-side suction port and an indoor-side discharge port in a main body, an indoor-side suction port, and an outdoor-side discharge port. An exhaust passage that communicates with each other, an air supply passage that communicates between the outdoor suction port and the indoor discharge port, and the ventilation blade that blows air to the circulation passage, the blowing motor that rotates the blade, and the exhaust gas. A heat exchanger provided at the intersection of the passage and the air supply passage, an exhaust blade that blows air to the exhaust passage, an air supply blade that blows to the air supply passage, and a ventilation motor that rotates them. A heat exchange coil for heating and cooling the circulating air and the supply air, a duct communicating the suction port provided in each room with the indoor side suction port, a discharge port provided in each room, and the indoor side discharge An air supply duct communicating with the outlet is provided, and the circulation passage and the air supply are connected. The end of the partition wall of the passage is brought into contact with the heat exchange coil.

Function With this configuration, the air in each room is sucked into the main body through the suction port and the return air duct, part of it is exhausted to the outside from the outdoor discharge port through the heat exchanger by the exhaust vanes, and most of it is for blowing air. After being sucked by the blades and heated or cooled by the heat exchange coil, it is sucked from the outdoor suction port by the air supply blades and passes through the heat exchanger, and is heated or cooled by the heat exchange coil. Under the condition that the air flows through the air supply duct, it will be discharged from the discharge port provided in each room, enabling heat exchange ventilation and heating or cooling of each room, and a motor for blowing air. By adjusting the ventilation motor, the circulating air volume and the ventilation air volume can be adjusted independently of each other.

EXAMPLES An example of the present invention will be described below with reference to FIGS. 1 and 2. In the figure, reference numeral 1 is a main body, and a circulation passage 4 which internally connects the indoor side suction port 2 and the indoor side discharge port 3 and an exhaust passage 6 which communicates the indoor side suction port 2 and the outdoor side discharge port 5 with each other.
And an air supply passage 8 that connects the outdoor suction port 7 and the indoor discharge port 3 to each other. In addition, inside the main body, a blower blade 9 for blowing air to the circulation passage 4, a blower motor 10 for rotating it, a heat exchanger 11 provided at the intersection of the exhaust passage 6 and the air supply passage 8, and an exhaust gas. Exhaust blades that blow into the passage 6
12, an air supply blade 13 for blowing air to the air supply passage 8, a ventilation motor 14 for rotating them, and a heat exchange coil for heating or cooling the circulating indoor air and the supplied outdoor air.
Have 15 and. The circulation passage 4 and the air supply passage 8 are separated from each other by a partition wall 16, and an end portion 17 is in contact with the heat exchange coil 15. The suction port 19 provided in each room and the indoor side suction port 2 provided in the main body 1 are connected by a return air duct 18, and the discharge port 21 provided in each room and the indoor side discharge port 3 provided in the main body 1 are Air supply duct
It is connected by 20.

In the above configuration, when the blower motor 10 and the ventilation motor 14 are operated, the indoor air in each room is sucked into the main body 1 through the suction port 19 and the return air duct 18 as shown by arrow A →, and a part of the air is exhausted. After passing through the heat exchanger 11 by the blades 12 and exhausted to the outside from the outdoor discharge port 5 as shown by arrow B →, most of the air is sucked into the blower blades 9 and heated by the heat exchange coil 15 or after being cooled. The outdoor air that has been heated or cooled by the heat exchange coil 15 after having exchanged heat with the air that has been sucked from the outdoor suction port 7 by the air supply blades 13 as shown by arrow C ... → Exhausted by the heat exchanger 11. Under a low pressure, and the discharge port 21 provided in each room through the indoor discharge port 3 and the air supply duct 20.
Further, it is discharged into each room as indicated by arrow D →.

As described above, according to this embodiment, since the end of the partition wall 16 that divides the circulation passage 4 and the air supply passage 8 is in contact with the heat exchange coil 15, the circulation passage 4 and the air supply passage 8 are separated from each other. Heat exchange coil
15 will be merged with the indoor discharge port 3, and the circulation passage 4 will be included in the indoor air sucked into the main body 1 from each room.
Most of the indoor air that passes through and the outdoor air that is sucked by the air supply vanes 13 from the outdoor suction port 7 and that passes through the air supply passage 8 pass through the heat exchange coil 15 separately, and the pressure becomes low. By the way, we will meet. As a result, one air is less likely to be affected by the other air, and it becomes possible to adjust the circulating air volume and the ventilation air volume independently of each other by adjusting the blower motor 10 and the ventilation motor 14, and at the same time, the merging resistance. It is also possible to reduce the decrease in air flow due to.

EFFECTS OF THE INVENTION As is clear from the above description of the embodiment, according to the present invention, by circulating the circulating indoor air and the outdoor air to be supplied under a low pressure, the air volume of each air can be reduced. It is possible to surely perform them independently of each other, and it is possible to reduce a decrease in the air volume of each.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a side sectional view of a ventilation air conditioner according to an embodiment of the present invention, FIG. 2 is a construction sectional view of the ventilation air conditioner, and FIG. 3 is a side view of a conventional ventilation air conditioner. FIG. 1 ... Main body, 2 ... Indoor suction port, 3 ... Indoor discharge port, 4 ... Circulation passage, 5 ... Indoor discharge port, 6 ... Exhaust passage, 7 ... Outdoor suction port, 8 ... Air supply passage, 9 ... Blower blade, 10 ... Blower motor, 11 ... Heat exchanger, 12 ...
… Exhaust blades, 13 …… Supply blades, 14 …… Ventilation motor, 15 …… Heat exchange coil, 16 …… Partition wall, 17 …… End, 18
...... Return air duct, 19 …… Suction port, 20 …… Air supply duct, 21
...... Discharge port.

Claims (1)

[Claims] 1. A circulation passage communicating with an indoor suction port and an indoor discharge port in a main body, an exhaust passage communicating with an indoor suction port and an outdoor discharge port, an outdoor suction port and an indoor discharge port. An air supply passage communicating with the outlet is formed as a compartment, and further, a fan for blowing air to the circulation passage, a fan motor for rotating the air supply blade, and a heat provided at an intersection of the exhaust passage and the air supply passage. An exchanger, an exhaust blade that blows air to the exhaust passage, an air supply blade that blows to the air supply passage, a ventilation motor that rotates them, and a heat exchange coil that heats and cools circulating air and supply air. And a return air duct that communicates the suction port provided in each room with the indoor suction port, and an air supply duct that communicates the discharge port provided in each room with the indoor discharge port. The ends of the partition walls of the circulation passage and the air supply passage are brought into contact with the heat exchange coil. Ventilation air-conditioning system.