JP2616308B2 - Air conditioning unit - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioning unit, and more particularly to an air conditioning unit used in a duct type air conditioning system capable of individually conditioning each room in a house.

[0002]

2. Description of the Related Art As a conventional air conditioning unit of this type, there is a technique disclosed in Japanese Utility Model Laid-Open No. 2-30824. FIG. 6 is a perspective view showing a state in which a front panel of a conventional air conditioning unit disclosed in the above publication is released, and this is an air conditioning unit in which an upper unit and a lower unit are integrally assembled.

In FIG. 1, A is an upper unit, and B is a lower unit on which the upper unit A is placed. 41 is a blower built in the upper unit A, 42 is a heat exchanger built in the lower unit B, 43 is an upper unit A
Open / close front panel 44 located at the front of lower unit B;
Is a unit outlet provided on the front panel 43 of the upper unit A, 46 is a unit suction port provided on the front panel 44 of the lower unit B, 47 is a refrigerant pipe connected to the heat exchanger 42, and 48 is A drain pan 49, which is a dew tray located below the heat exchanger 42, is a drain pipe for discharging drain collected in the drain pan 48.

[0004] The air-conditioning unit having this configuration is divided into an upper unit A and a lower unit B.
And the lower unit B having the heat exchanger 42 integrated therewith constitute an air conditioning unit. The air sucked from the unit suction port 46 is heat-exchanged by the heat exchanger 42 and blown out from the unit outlet 45 as warm air or cool air by the blower 41. Air conditioning is performed to reach the temperature.

[0005]

In the conventional air conditioning unit as described above, the refrigerant pipe 47 to the heat exchanger 42 is disposed along the side of the air conditioning unit, and the heat exchanger (such as an outdoor unit) is used. (Not shown).

However, the piping position of the refrigerant piping 47 always passes through the same position, and extends from the same location of the air conditioning unit to the outside of the air conditioning unit, and the refrigerant piping 47 has no flexibility. Therefore, for example, it is convenient when the outdoor unit is located in the direction in which the refrigerant pipe 47 extends, but when the outdoor unit is located in the direction opposite to the direction in which the refrigerant pipe 47 extends, a complicated refrigerant pipe is used. For example, the refrigerant pipe 47 could not be efficiently installed.

Accordingly, an object of the present invention is to provide an air conditioning unit in which a refrigerant pipe can be properly and efficiently installed in accordance with the installation positional relationship between the air conditioning unit and the outdoor unit.

[0008]

An air conditioner unit according to the present invention comprises an air conditioner unit having a built-in heat exchanger and a blower, and an air conditioner unit having a heat exchanger and a blower. And a notch for the construction of a refrigerant pipe with the heat exchanger, and a U-cut plate and a sealing plate disposed in each of the notches according to the state of construction of the refrigerant pipe. .

[0009]

In the air conditioning unit according to the present invention, notches are formed in the front and lower portions of both sides of the air conditioning unit containing the heat exchanger and the blower, respectively, for the construction of the refrigerant pipe with the heat exchanger. Since a U-cut plate and a sealing plate are appropriately disposed in each of the cutouts according to the state of the refrigerant pipe, the refrigerant pipe is constructed by using a desired cutout of the plurality of cutouts. However, other notches can be closed by the sealing plate, and the refrigerant piping has a degree of freedom.

[0010]

Embodiments of the present invention will be described below.

FIG. 1 is a perspective view showing an entire configuration of a duct type air conditioning system using an air conditioning unit according to one embodiment of the present invention. FIG. 2 is a perspective view showing an air conditioning unit according to one embodiment of the present invention. It is a perspective view showing the operation system of the duct type air conditioning system used.

In FIG. 1, reference numeral 1 denotes an outdoor unit disposed outdoors, and 2 denotes an air conditioner unit also disposed outdoors. The outdoor unit 1 and the air conditioner unit 2 are integrated into a heat pump type. Constructs an air conditioner. Reference numeral 3 denotes a heat exchanger built in the air conditioning unit 2, and 4 denotes a blower built in the air conditioning unit 2, and the blower 4 functions as a circulating source of air for air conditioning. 5
Is an external rising duct installed on the air conditioning unit 2 along the outer wall of the building.
The air that has undergone heat exchange is blown through. 6 is an octopus-shaped ceiling duct connected to the rising duct 5, 7 is a ceiling outlet formed at an end of the ceiling duct 6, 8 is a floor outlet also formed at an end of the ceiling duct 6, Reference numeral 9 denotes a VAV (variable air volume valve) damper unit incorporated in each of the ceiling air outlet 7 and the floor air outlet 8, and the blow air volume can be adjusted by appropriately changing the degree of opening and closing of the damper. Reference numeral 10 denotes a suction duct disposed under the floor or the like.
0, the indoor air is guided to the outdoor air conditioning unit 2. Reference numeral 11 denotes a ventilation air conditioner that ventilates between indoor and outdoor while performing heat exchange using the temperature of indoor air, and uses Rossnai (registered trademark) manufactured by Mitsubishi Electric Corporation. 1
Reference numeral 2 denotes a refrigerant pipe for connecting the outdoor unit 1 and the heat exchanger 3 of the air conditioning unit 2, and reference numeral 13 denotes a center controller for controlling the entire duct type air conditioning system.
The V damper unit 9 controls the air volume, sets the temperature, switches the operation mode, and the like. Reference numeral 14 denotes a room controller for adjusting the air volume and setting the temperature by each VAV damper unit 9 for each room.

In the duct type air conditioning system of this configuration, both the outdoor unit 1 and the air conditioning unit 2 are arranged outdoors. Then, the hot or cold air after the heat exchange sent from the air conditioning unit 2 passes through the rising duct 5 and the ceiling duct 6, and is blown out from the ceiling outlet 7 and the floor outlet 8 to each room, and each indoor room is cooled. Room air conditioning is performed.
The air conditioned in the room passes through the suction duct 10 and returns to the air conditioning unit 2 again, where heat is exchanged and the rising duct 5
To be blown out. That is, in the duct type air conditioning system apparatus of the present embodiment, the air conditioning unit 2 (blower 4 → heat exchanger 3) → rising duct 5 → ceiling duct 6 → ceiling outlet 7 and floor outlet 8 → indoor → suction Air circulates in the order of duct 10 → air conditioning unit 2. When warm air or cold air for air conditioning is blown out from the ceiling outlet 7 and the floor outlet 8 to each room, the air is blown out by the VAV damper units 9 provided in the ceiling outlet 7 and the floor outlet 8, respectively. The air volume is appropriately adjusted, and the room temperature is adjusted for each room. Further, by the ventilation air conditioner 11 such as Rothney, fresh air outside is supplied to the room while performing heat exchange using the air temperature inside the room, and dirty air inside the room is discharged outside, and indoor air is discharged. And outdoor ventilation.

Although the air conditioner unit 2 and the outdoor unit 1 of this embodiment are both installed outdoors, their installation positions can be appropriately selected as shown in FIG. FIG. 3 is a plan view showing installation positions of an air conditioner unit and an outdoor unit according to one embodiment of the present invention.

In FIG. 1, reference numeral 15 denotes an outer wall of the building, along which the air conditioning unit 2 is disposed. The outdoor unit 1 is located near the air conditioning unit 2.
Is installed. The positional relationship between the air-conditioning unit 2 and the outdoor unit 1 can be appropriately changed in consideration of the shape of the installation space and the like.
Or the outdoor units 1 can be arranged side by side on the right or left side of the air conditioning unit 2. Therefore, for example, even in a place where the gap with the adjacent house is narrow, the installation can be performed by appropriately changing the arrangement of the outdoor unit 1 with respect to the air conditioning unit 2. In this case,
A refrigerant pipe 1 that connects the heat exchanger 3 of the air conditioning unit 2 and the heat exchanger of the outdoor unit 1 and forms a predetermined refrigerant cycle
2, an optimum refrigerant pipe 12 is installed each time according to the installation positional relationship between the air conditioning unit 2 and the outdoor unit 1.

Next, the working condition of the refrigerant pipe 12 of the air-conditioning unit of this embodiment will be described in detail. FIG. 4 is a perspective view showing a main part of the air conditioning unit according to one embodiment of the present invention, in which a refrigerant pipe is installed in the front direction. FIG. 5 is a perspective view of the air conditioning unit according to one embodiment of the present invention. It is an important section perspective view showing the state where piping was constructed.

In the figure, reference numeral 21 denotes cutouts formed in the lower part of the front surface 2a and both side surfaces 2b of the outer box of the air conditioner unit 2, and one of the three cutouts 21 is used. The refrigerant pipe 12 is installed. 22 is a refrigerant pipe 12
Is a U-cut plate disposed in the cut-out portion 21 where the U-cut plate 22 is formed. The U-cut plate 22 is formed with a U-cut portion 22 a so that the refrigerant pipe 12 can pass therethrough. Reference numeral 23 denotes a sealing plate (blind plate) provided in the remaining notch 21 where the refrigerant pipe 12 is not installed. The notch 21 is closed by the sealing plate 23. Reference numeral 24 denotes a screw for attaching the sealing plate 23 and the U-cut plate 22 to the notch 21 of the air conditioning unit 2.

The air conditioner unit 2 having this configuration and the outdoor unit 1
Is connected by the refrigerant pipe 12, for example, when the outdoor unit 1 is installed on the front side of the air conditioning unit 2,
As shown in FIG. 4, the refrigerant pipe 12 is constructed through a notch 21 formed in the lower part of the front surface 2 a of the air conditioning unit 2. The U-cut plate 2 is inserted into the notch 21 on the front 2a.
2 is attached, and a sealing plate 23 is attached to a cutout 21 formed in a lower portion of both side surfaces 2b of the air conditioning unit 2. Also,
When the outdoor units 1 are arranged side by side on the right and left sides of the air conditioning unit 2, as shown in FIG. 5, the refrigerant pipes pass through the cutouts 21 on the side surface 2b of the air conditioning unit 2 on the side where the outdoor units 1 are located. 12 is constructed. Then, U
A cut plate 22 is attached, and a sealing plate 23 is attached to both the cutout 21 on the other side surface 2b and the cutout 21 on the front surface 2a.
Thus, in the air-conditioning unit 2 having this configuration, the refrigerant pipe 12 is constructed using the desired notch 21 of the plurality of notches 21, and the other unnecessary notches 21 can be closed with the sealing plate 23. it can. Therefore, it is possible to appropriately select the notch 21 optimal for the construction of the refrigerant pipe 12 according to the installation position of the outdoor unit 1 with respect to the air conditioning unit 2.

As described above, the air-conditioning unit of the present embodiment comprises an external air-conditioning unit 2 having a built-in heat exchanger 3 and a blower 4, and a front surface 2a and both side surfaces 2b of an outer box of the air-conditioning unit 2. A notch 21 for drilling the refrigerant pipe 12 with the heat exchanger 3, each of which is drilled in a lower portion of the heat exchanger 3, and one notch 21 that is appropriately disposed in each notch 21 according to the state of the refrigerant pipe 12. A U-cut plate 22 and two sealing plates 23 are provided.

That is, in the air conditioning unit of the present embodiment, a refrigerant pipe 12 for connection with the heat exchanger 3 is provided on the lower part of the front face 2a and both side faces 2b of the air conditioning unit part containing the heat exchanger 3 and the blower 4. Cutouts 21 are formed, and a U-cut plate 22 and a sealing plate 23 are appropriately disposed in each of the cutouts 21 in accordance with the construction state of the refrigerant pipe 12.

Therefore, in the air conditioning unit of the present embodiment, a desired one of the three notches 21 of the front face 2a and the two side faces 2b of the outer box of the air conditioning unit 2 is provided.
The refrigerant pipe 12 is constructed by utilizing the above, and the remaining two unnecessary notches 21 can be closed by the sealing plate 23. Therefore, the refrigerant pipe 12 has a degree of freedom. For this reason, the piping position of the refrigerant pipe 12 can be appropriately selected according to the installation position of the outdoor unit 1 with respect to the air-conditioning unit 2, and an appropriate refrigerant pipe 12 can be constructed. Without this, the refrigerant pipe 12 can be constructed very efficiently. In addition, since this can be realized with common components, the manufacturing cost is reduced as a result.

In the above embodiment, one notch 21 is formed in the front face 2a of the outer box of the air conditioner unit 2, and one notch 21 is formed in each of the two side surfaces 2b. Although the air conditioning unit having two notches 21 has been described, the positions and numbers of the notches 21 are not necessarily limited to the positions and numbers in the above-described embodiment.

[0023]

As described above, the air-conditioning unit of the present invention includes an air-conditioning unit, a notch, a U-cut plate and a sealing plate, and includes a heat exchanger and a blower. At the front of the unit and at the lower part of both sides, cutouts for refrigerant pipe construction with the heat exchanger are respectively formed, and a U-cut plate and a sealing plate are formed in each of these cutouts according to the state of refrigerant pipe construction. By appropriately arranging, the refrigerant pipe is constructed using a desired notch of the plurality of notches, and the other notches can be closed with a sealing plate, and the refrigerant pipe has a degree of freedom. In addition, the piping position of the refrigerant pipe is appropriately selected according to the installation position of the outdoor unit with respect to the air conditioning unit, and a proper and efficient refrigerant pipe can be constructed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an overall configuration of a duct type air conditioning system using an air conditioning unit according to an embodiment of the present invention.

FIG. 2 is a perspective view showing an operation system of a duct type air conditioning system using the air conditioning unit according to one embodiment of the present invention.

FIG. 3 is a plan view showing installation positions of an air conditioning unit and an outdoor unit according to one embodiment of the present invention.

FIG. 4 is a perspective view of an essential part showing a state in which a refrigerant pipe is installed in a front direction of an air conditioning unit according to one embodiment of the present invention.

FIG. 5 is a perspective view of an essential part showing a state in which a refrigerant pipe is installed in a side direction of the air conditioning unit according to one embodiment of the present invention.

FIG. 6 is a perspective view showing a state where a front panel of a conventional air conditioning unit is released.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outdoor unit 2 Air conditioning unit 2a Front 2b Side surface 3 Heat exchanger 4 Blower 12 Refrigerant piping 21 Notch 22 U cut plate 22a U cut portion 23 Sealing plate

Claims (1)

(57) [Claims] 1. A refrigerant pipe for connecting an external air conditioner unit containing a heat exchanger and a blower, and a refrigerant pipe to the heat exchanger, which is formed in a lower part of a front surface and both side surfaces of the air conditioner unit, respectively. An air conditioning unit, comprising: a notch for use in the air conditioner; and a U-cut plate and a sealing plate disposed in each of the notches in accordance with a state of construction of a refrigerant pipe.