JPH07101111B2 - Cassette type air conditioner for both circulation and outdoor air cooling - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention is installed in a room such as a ceiling, and the outside air is automatically introduced into the room as the temperature changes in the room during the mid-winter season, as well as the supply of cold and warm air. However, the present invention relates to a cassette type air conditioner for both circulation and outside air cooling, which constantly tries to deliver a healthy and comfortable air conditioning environment to the room.

[0002]

2. Description of the Related Art When a room having a relatively high indoor load, such as a store, a restaurant, a meeting place, etc., has a room temperature of a relatively high room temperature, it is naturally necessary to cool the room not only in the summer but also in the winter. Conventionally, when such a room temperature is high, a cooling / heating machine to be installed in the room is operated to supply a predetermined amount of cold air to the room. However, operating the air conditioner consumes heat resources unnecessarily, which is economically problematic.

[0003]

SUMMARY OF THE INVENTION As described above, the present invention focuses on introducing the cold air into the room during the period when the temperature of the outside air is low, such as in the interim period and winter, and simultaneously supplies the cold air and warm air to the room, and at the same time the room is exposed to the outside air. It may be possible to request sufficient air-conditioning management that is necessary by cooling supply. Therefore, it greatly reduces the amount of heat used for the cooling operation up to now, and also introduces fresh outside air into the room to maintain a comfortable environment in the room at all times and to have a healthy and economical function. Its main purpose is to provide a wide range of air conditioners.

[0004]

As a means for achieving the above object, a cassette type air conditioner according to the present invention has a suction port at a lower peripheral portion below a main body 1 as shown in the drawings by way of example. 2 and an outlet 3 are provided respectively, and a central panel 5 is attached to the center of the central panel 5, and a ceiling panel 4 formed with a suction air passage a is continuously provided therein, and the suction air passage a is provided inside the main body 1. A ring, an outside air blowing passage b, an outside air bypass passage c adjacent to the blowing passage, and a plenum champer 6 for communicating both side blowing passages and the air outlet 3 opened to the lower surface. , Mechanical devices such as a cooling and hot water coil 7, a humidifier 8 and a drain pan 10 are arranged in the outside air blowing passage b, a ring and an exhaust blower F1 are installed in the suction blowing passage a, and the ring, The outside air blowing passage b is for switching the blowing passage. The EA damper D1, the RA damper D2, and the OA damper D3, which are respectively installed in the bypass air passage c so as to be openable and closable, and the ventilation of the outside air introduction port 11 and the exhaust port 12 on one side of the chassis. Each opening is provided and an outside air introduction passage d communicating with the outside air introduction port 11 and the outside air bypass passage c on the main body side, and an exhaust ventilation passage e communicating with the exhaust outlet 12 and the ring and the exhaust ventilation passage b are provided inside the machine. ,
The blower unit B is formed by installing a blower F2 for outside air in the outside air introduction passage d, and the blower unit B is formed integrally with the air conditioning unit A adjacent to the blower unit B. And

Further, the air-conditioning unit A and the blower unit B are formed so as to be separably joined, and the number of installed units is increased or decreased depending on the indoor environment, or they are used individually, so that the indoor air circulation operation and the outside air intake operation are performed simultaneously or simultaneously. It may be possible to perform each differently.

[0006]

In the air conditioner according to the present invention, a predetermined number of air conditioners are installed on the ceiling of a room, and the air in the room is opened below the machine body by operating the ring and the exhaust blower F1. The plenum champer is introduced further into the machine and passes through the hot water coil of the hot water coil 7 during heating and the cold water coil during cooling by the operation of each damper, while the heat exchange between cold and hot and appropriate humidification are given during that time. A predetermined amount of cold and warm air is fed into the room from the blower outlet 3 via 6. That is, at normal times, the EA damper D1, and the OA damper D3 are closed at the same time when the ring and the exhaust blower F1 are operated, and R
When the A damper D2 is opened, the room air flows from the suction port 2 through the suction air blowing passage a to the ring and the exhaust air blowing passage b, and is cooled in the air blowing passage 7 and cooled to an appropriate temperature by the hot water coil 7. Alternatively, the circulation cooling operation is performed in which the room is heated to supply cold and warm air to the room. During the operation, the operation of the outside air blower F2 on the blower unit B side is stopped. In such a situation, when the indoor environment requires cooling such as population density, use of heaters, installation of 0A equipment, etc. in the middle of the season, winter, etc., the RA damper D2, is used to cool and warm water. Although the cool air cooled by the coil 7 is being fed, but when it is necessary to introduce the outside air at the same time as the cooling air feeding to the room, the ring, the exhaust blower F1 and the outside air blower F2 By opening each of the EA damper D1, the RA damper D2, and the OA damper D3 during operation, it is possible to introduce fresh outdoor air at the same time as returning indoor air. Further, when it is necessary to cool only the outside air, the ring and the exhaust blower F1
Also, while operating the outside air blower F2, the RA damper D2 is closed at the same time, and the outside air introduced through the outside air introduction port 11 by opening the EA damper D1 and the RA damper D2 passes through the outside air introduction passage d and the outside air bypass passage c to the plenum. Champer 6
The air volume is further distributed in four directions to supply fresh outside air cool air from the air outlet 3 to the room. At the same time, the contaminated air in the room is passed through the ring and the exhaust air passage b to the exhaust air passage e of the blower unit B. It is discharged from the flow exhaust port 12 to the outside of the room. Further, when the air is blown, an appropriate humidification can be simultaneously sent to the room by the action of the humidifier 8.

Further, in the present invention, even in the same room, if there is a difference in the indoor / outdoor sunshine relation, the population density and other temperature environments, as shown in FIG. At the same time, an air conditioner having an air volume corresponding to the amount of outside air required in advance, for example, several air conditioner units A, A, A, or the air conditioner unit A and the blower unit B are A, A, B, B, A and A are used by combining and installing the numbers, and in one of the air conditioning units A, cooling is performed in the air conditioning unit A, and the hot water coil 7 is cooled. Outside air cooling can be easily obtained by operating the blower unit B at the same time as the above-mentioned action in the place where the outside air cooling is required at the same time as the supply of warm air and the above-mentioned action is performed at the place where more outside air cooling is required. Overall What it is as it can be able to find a comfortable temperature environment at the same time. In addition, by installing another total heat exchanger along with the blower unit B in the above, a part of the heat quantity in the exhaust gas can be recovered and reused economically.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. An air conditioner according to the present invention is composed of a plurality of units, an air conditioning unit A and a blower unit B. The air-conditioning unit A has suction ports 2 formed in four directions on the lower side of the main body 1, a suction airflow passage a is formed inside the suction port 2, and air outlets 3 are formed in parallel on the outer side of the bottom surface of the panel. A ceiling panel 4 on which a central panel 5 can be freely opened and closed is fitted so as to be vertically movable. In the upper part of the machine, a ring and an exhaust air passage b are communicated with the suction air passage a.
A plenum champer 6 is formed along the side portion of the above-mentioned airframe and has a blower passage 3 which communicates with the passage and has an air passage inside thereof.
Connect and connect to distribute to. In addition, in the ring and the exhaust ventilation passage b, there are cold, hot water coil 7, humidifier 8, and drain pan 1.
0 and other necessary mechanical devices are arranged, and a ring and an exhaust blower F1 are installed in the suction blower passage a, but the ring and the exhaust blower F1 are pushed in the ring and the exhaust blower passage b direction. It may be installed in. Further, an outside air bypass passage c is formed in parallel with the ring and the exhaust passage b, and the outlet side thereof communicates with the inside of the plenum champer 6.
In addition, the EA damper D1, and the RA damper D2, between the suction air passage a and the ring, the exhaust air passage b, and the exhaust air passage e.
The OA dampers D3 and OA dampers for passing and blocking the outside air are respectively provided in the outside air bypass passage c for switching the air flow. The switching operation is performed by the switch installed on the indoor side. It is performed by an operation or a computer.

Next, the blower unit B opens the outside air introduction port 11 and the exhaust port 12 on one side of the machine and introduces the outside air so as to connect the outside air introduction port 11 and the outside air bypass passage c in the air conditioning unit A. A passage d and an exhaust air blowing passage e are formed in communication with the exhaust port 12, the ring, and the exhaust air blowing passage b, and an outside air blower F2 is installed in the outside air introducing passage d. The present invention comprises an air conditioning unit A and a blower unit B having the above structure, and both the air conditioning side unit A and the blower side unit B as a heat treatment unit are installed in the respective units. The ventilation passages formed in the above are communicated with each other and integrally formed. It should be noted that reference numerals 9 and 13 are filters which are fitted in the respective air passages.

As another embodiment, the air conditioning unit A and the blower unit B having the above structure may not be integrally formed, but they may be separately formed and used by connecting them when necessary. That is, it is possible to separate only one blower unit B side and install it separately from the air conditioning unit A for heat treatment as described in the section of the above operation, or it can be used independently. It can also be used side by side by connecting an exhaust ventilation mechanism and a duct.

Further, according to the present invention, the opening and closing of the central panel 5 mounted inside the ceiling panel 4 exposes the inside of the machine from the lower surface of the ceiling, so that maintenance work inside the machine can be easily performed without removing the entire machine body. It can be done.

[0012]

As described above, the present invention provides the air conditioning unit A.
EA damper D1, RA damper D2, OA damper D
By the damper operation by 3, not only the cooling in the summer and the direct cooling by the outside air, but also the introduction of the outside air that can be immediately cooled to the outside, for example, even when the cooling air is needed in the room with a lot of indoor load even in the winter, It can be easily introduced at the same time as the exhaust air, which makes it possible to maintain the indoor environment in the most healthy condition by the outside air. Especially, by effectively using the outdoor cold air, it has been conventionally required for cooling. It also has the effect of significantly reducing heat energy and being able to use it very economically.

Further, as described in claims 2 and 3, the air conditioning unit A and the blower unit B are formed so as to be separably joined, so that the number of installed units can be increased or decreased depending on the indoor environment or the like or each can be used individually. Even if it is the same room, it is possible to send cold and warm air to different places in the room under different conditions such as high temperature, low temperature, and of course, as a matter of course, as described above, the relation of population density etc. in the middle season or winter. Therefore, it is possible to easily obtain healthy indoor air conditioning by actively delivering only outside air to the required places by the independent operation of the blower unit B to the places where the intake of cold air is partially required. is there. Moreover, in the present invention, as described above,
Since the air conditioning unit A and the blower unit B are separately configured so as to be separable from each other, there is an advantage that various operations such as transportation and installation can be performed very easily and easily.

When maintenance work such as daily maintenance and inspection is required as described in claim 4, the inside of the machine is exposed by opening the central panel 5 attached to the center of the ceiling panel 4. It is also possible to perform various operations such as maintenance of the device extremely smoothly, reliably and easily.

[Brief description of drawings]

FIG. 1 is a plan view schematically showing the internal structure of a cassette type air conditioner for both circulation and outside air cooling according to the present invention,

[Fig. 2] Same as above, front view,

FIG. 3 is an explanatory diagram of a combination of an air conditioning unit and a blower unit.

[Explanation of symbols]

 A air conditioner unit B blower unit F1 ring, exhaust blower F2 outside air blower b ring, exhaust blower passage c outside air by-pass blower passage d outside air introduction passage e exhaust blower passage D1-3 OA damper, RA damper, EA damper

Claims (4)

[Claims] 1. A main body 1 is provided with a suction port 2 and a blow-out port 3 at the lower surface of the main body 1 below the main body 1, and a ceiling panel 4 in which a suction air passage a is formed. In the inside of the machine, the ring communicates with the suction air passage a, the outside air air passage b, and the outside air bypass air passage c on the side adjacent to the air passage a.
Further, each side air passages a and b are formed with respective air passages of the plenum champer 6 which communicates the air outlet 3, and the cold and hot water coils 7 and the humidifier 8 are provided in the ring and the outside air air passage b. , A drain pan 10 and other mechanical devices are arranged, a ring and an exhaust blower F1 are installed in the suction blow passage a, and an EA for switching the blow passage is provided in the ring and the outside air blow passage b.
Adjacent to the air conditioning unit A, in which the dampers D1, RA dampers D2, and OA dampers D3 are installed in the by-pass air passage c so as to be openable and closable, the outside air introduction port 11 and the exhaust port 12 are opened on one side, In addition, the outside air introduction passage 11 communicates with the outside air introduction passage 11 and the outside air bypass passage c, and the exhaust ventilation passage e communicates with the exhaust outlet 12 and the ring and the exhaust ventilation passage b.
And a blower F for outside air in the outside air introduction passage d.
A cassette type air conditioner for both circulation and outside air cooling, characterized in that a blower unit B having 2 installed is integrally configured. 2. The cassette type air conditioner according to claim 1, wherein the air conditioner unit A and the blower unit B are formed so that they can be contacted and separated from each other, and either the air conditioner unit A or the blower unit B is connected when necessary. A cassette type air conditioner for both circulation and outdoor air cooling, characterized by being configured so that each can be operated independently. 3. The cassette type air conditioner according to claim 1, wherein the number of air conditioners A and the number of blower units B installed in advance correspond to the required amount of outside air or the indoor environment. Installed by changing the ratio of the above and below, and performing the circulation operation of the indoor air and the intake operation of the outside air at the same time or differently in order to send more outside air to the necessary places. Cassette type air conditioner. 4. The cassette-type air conditioner according to claim 1, wherein a central panel 5 for maintenance is fitted inside the ceiling panel 4 so as to be openable and closable. Cassette type air conditioner.