JP2653295B2 - 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. 7 is a perspective view showing a state in which a front panel of a conventional air conditioning unit disclosed in the above publication is opened, 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 blower 41 is built in the upper part and the heat exchanger 42 is built in the lower part. Therefore, the distance between the unit suction port 46 and the suction port of the blower 41 is large,
When this air-conditioning unit is used in a duct-type air-conditioning system, the suction air from the suction duct provided under the floor or the like cannot be directly sucked by the blower 41, and the suction characteristics are not good.

Further, in the conventional air conditioning unit, the front panels 43 and 44 can be opened and closed only in one direction.
The left and right sides of the air conditioning unit were covered with fixed panels that could not be opened and closed. Therefore, the installation location of the outdoor unit connected to the air conditioning unit by the refrigerant pipe has been limited. That is, in consideration of the maintenance and inspection work of the air conditioning unit, the outdoor unit or the like must be installed at a position that does not hinder opening and closing of the front panels 43 and 44, and the installation position of the outdoor unit with respect to the air conditioning unit has a high degree of freedom. Did not. on the other hand,
As other prior arts, Japanese Utility Model Laid-Open No. 57-160022 and Japanese Utility Model Publication No. 56-32815, Japanese Patent Laid-Open No. Sho 62-162.
No. 831 and the like. Japanese Utility Model Laid-Open No. 57-160022 and Japanese Utility Model Publication No. 56-32815 disclose an air conditioner unit having a heat exchanger in the upper part and a blower in the lower part. There is no disclosure of the relationship with the installation position of In addition, Japanese Unexamined Patent Publication
Japanese Patent Application Laid-Open No. 2-162831 discloses a technique in which an air-conditioning cabinet is composed of panels. However, even in the technology described in this publication, there is no disclosure of the relationship between the air conditioning unit and the installation position of the outdoor unit.

In view of the above, according to the present invention, suction air can be directly sucked by a blower from a suction duct provided under the floor or the like, the suction characteristics are good, and the installation position of the outdoor unit with respect to the air conditioning unit has a high degree of freedom. It is an object of the present invention to provide an air-conditioning unit that is convenient for inspection work.

[0008]

The air conditioner unit according to the present invention has a heat exchanger connected to the outdoor unit via a refrigerant pipe at an upper portion, a blower at a lower portion, and a heat exchanger connected to the outdoor unit. An external air conditioning unit that incorporates an internal duct for ventilation at an intermediate portion with the blower, and the air conditioning unit that is detachably attached to the front of the air conditioning unit and that can be freely connected to a refrigerant pipe of the heat exchanger. A front panel that covers the front side of the device in the air conditioning unit, and a device in the air conditioning unit that is detachably attached to both left and right side surfaces of the air conditioning unit and is freely connectable to a refrigerant pipe of the heat exchanger. It has a left side panel and a right side panel that cover both left and right sides.

[0009]

In the present invention, the heat exchanger is located at the upper part, the blower is located at the lower part, and an internal duct for ventilation is provided at the intermediate part between the heat exchanger and the blower. A front panel that covers the front side of the equipment in the air conditioning unit is detachably mounted, and a left side panel and a right side surface that cover the left and right sides of the equipment in the air conditioning unit are provided on both left and right sides of the air conditioning unit. Since the panel is detachably mounted, the suction air from the suction duct that is piped under the floor can be directly sucked by the blower and sent to the heat exchanger, and the outdoor air can be blown out to the front and left and right sides of the air conditioning unit. Even when the air conditioner is installed, the three panels on the front and both sides of the air conditioner unit can be independently attached and detached at the time of maintenance and inspection work according to the installation position.

[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 flow valve) damper unit incorporated in the ceiling outlet 7 and the floor outlet 8, respectively, 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,
The refrigerant pipe that connects the heat exchanger of the air conditioning unit 2 and the heat exchanger of the outdoor unit 1 and forms a predetermined refrigerant cycle includes:
An optimum refrigerant pipe is constructed each time according to the installation positional relationship between the air conditioning unit 2 and the outdoor unit 1.

Next, the air conditioner of this embodiment will be described in detail. First, the internal structure of the air conditioning unit will be described. FIG. 4 is a front view showing the internal structure of an air conditioning unit according to one embodiment of the present invention, and FIG. 5 is a side view showing the internal structure of the air conditioning unit according to one embodiment of the present invention.

In the figure, reference numeral 21 denotes a unit suction port provided at a lower portion of the back of the air conditioning unit 2, and the unit suction port 21 is directly connected to a suction port of the blower 4.
The unit suction port 21 is connected to the suction duct 10 (see FIG. 1). Reference numeral 22 denotes a unit outlet provided on the upper surface of the air conditioning unit 2, and the rising duct 5 is connected to the unit outlet 22 (see FIG. 1).
Reference numeral 23 denotes suction air sucked through the suction duct 10 provided under the floor or the like. The suction air 23 is directly sucked from the unit suction port 21 into the suction port of the blower 4. 24
Is an internal duct made of a heat insulating material, and the air blown from the blower 4 is sent to the heat exchanger 3 through the internal duct 24. Reference numeral 25 denotes a heat insulating member that tightly fixes the blower 4 to the air conditioning unit 2.

The air-conditioning unit of this configuration has a heat exchanger 3 built in at the upper part and a blower 4 built in the lower part, and an air duct is provided between the heat exchanger 3 and the blower 4 by an internal duct 24. A road is formed. In addition, the unit suction port 21 is directly connected to the suction port of the blower 4, and when this air conditioning unit 2 is used in a duct type air conditioning system, the suction air from the suction duct 10 piped under the floor or the like. 23 can be directly sucked by the blower 4. Then, the air is sent to the heat exchanger 3 as a laminar flow through the internal duct 24, and the hot air or the cool air that has been subjected to the heat exchange in the heat exchanger 3 is blown out from the unit outlet 22 to the rising duct 5. Therefore, the suction by the blower 4 is performed smoothly, and the suction characteristics are extremely good.

Next, the panel of the air conditioning unit of this embodiment will be described. FIG. 6 is a perspective view showing a detached state of the front panel and the left and right side panels of the air conditioning unit according to one embodiment of the present invention.

In the drawing, reference numeral 26 denotes a front panel which covers the front side of the blower 4 and the internal duct 24 incorporated in the air conditioning unit 2, and this front panel 26 is detachable from a frame at the lower front of the air conditioning unit 2. It is attached to. 27 is a left side panel for covering the left side of the blower 4 and the internal duct 24 built in the air conditioning unit 2;
Is a right side panel that covers the right side of the blower 4 and the internal duct 24 built in the air conditioning unit 2, and the left side panel 27 and the right side panel 28 are also the front panel 26.
In the same manner as described above, the air conditioner unit 2 is detachably attached to the lower frame of the front surface. 29 is the front panel 26,
Screws for attaching the left side panel 27 and the right side panel 28 to the frame of the air conditioning unit 2 respectively.

The panels that cover the front surface and both left and right sides of the air conditioning unit 2 are configured as described above. For example, when the outdoor unit 1 is installed on the front side of the air conditioning unit 2, In order to perform maintenance and inspection on the inside of the work 2, the left side panel 27 or the right side panel 28 is removed and work is performed. When the outdoor unit 1 is arranged side by side on the right or left side of the air conditioner unit 2, to perform maintenance and inspection of the inside of the air conditioner unit 2, remove the front panel 26 or the side panel opposite to the outdoor unit 1. Do the work. Thus, even if the outdoor unit 1 is installed on the front surface or the left and right side surfaces of the air conditioning unit 2, the outdoor unit 1
The maintenance and inspection work can be performed by appropriately attaching and detaching the three panels on the front surface and both side surfaces of the air conditioning unit 2 according to the installation position of the air conditioner.

As described above, the air-conditioning unit of the present embodiment has the heat exchanger 3 built in the upper part, the blower 4 built in the lower part, and a blower in the middle part between the heat exchanger 3 and the blower 4. An external air conditioner unit containing an internal duct 24, a front panel 26 detachably attached to the front of the air conditioner unit, and covering a front side of the blower 4 and the internal duct 24 in the air conditioner unit; A left side panel 27 and a right side panel 28 are detachably mounted on left and right sides of the air conditioning unit, and cover left and right sides of the blower 4 and the internal duct 24 in the air conditioning unit.

That is, the air conditioner unit of the present embodiment has the heat exchanger 3 built in the upper part in the air conditioner unit, the blower 4 built in the lower part, and the intermediate part between the heat exchanger 3 and the blower 4. The air conditioning unit has a built-in internal duct 24, and a front panel 26 that covers the front side of the blower 4 and the internal duct 24 is detachably attached to the front of the air conditioning unit. Blower 4
And left side panel 2 that covers both left and right sides of internal duct 24
7 and the right side panel 28 are detachably mounted.

Therefore, in the air-conditioning unit of this embodiment, the unit suction port 21 and the suction port of the blower 4 can be directly connected. When this air-conditioning unit 2 is used in a duct type air-conditioning system, it can be installed under the floor or the like. The suction air 23 from the suction duct 10 to be piped can be directly sucked by the blower 4. Moreover, the sucked air is smoothly blown to the heat exchanger 3 as a laminar flow through the internal duct 24. For this reason, the suction characteristics of the blower 4 are significantly improved. In addition, since the panels that cover the front and left and right sides of the air-conditioning unit 2 can be attached and detached independently of each other, even if the outdoor unit 1 is installed on the front or the left and right sides of the air-conditioning unit 2,
Maintenance and inspection work of each device in the air conditioning unit 2 can be easily performed. Therefore, the air conditioning unit 2 and the refrigerant pipe 12
The installation location of the outdoor unit 1 to be connected is not limited, and the degree of freedom of the installation position of the outdoor unit 1 with respect to the air conditioning unit 2 is increased.

In the above embodiment, the height of the outdoor unit 1 is lower than that of the air conditioning unit 2, and the detachable front panel 26 has a height corresponding to the blower 4 and the internal duct 24 of the air conditioning unit 2. Although the left side panel 27 and the right side panel 28 have been described, the detachable front panel, the left side panel, and the right side panel that cover the front side of the air conditioning unit 2 up to the heat exchanger 3 may also be used. I do not care.
When the panel having such a configuration is used, it is effective when the outdoor unit 1 having the same height as the air conditioning unit 2 is connected.

[0026]

As described above, the air conditioning unit of the present invention includes an air conditioning unit, a front panel, a left side panel and a right side panel, and is provided for an outdoor unit.
The upper part of the heat exchanger connected by the refrigerant pipe, the lower part of the blower, and the front part of the external air-conditioning unit part which incorporates an internal duct for air supply in the middle part between the heat exchanger and the blower, A front panel that covers the front side of the equipment in the air conditioning unit is detachably mounted, and the refrigerant of the heat exchanger
The left side panel and the right side panel that cover the left and right sides of the equipment in this air conditioning unit are detachably mounted on the left and right sides of the air conditioning unit , and can be connected to the piping .
In addition, by being freely connectable to the refrigerant pipe of the heat exchanger , suction air from a suction duct piped under the floor or the like can be directly sucked by a blower and smoothly blown to the heat exchanger, so that the suction characteristics of the blower Is greatly improved,
Even if the outdoor unit is installed on the front or left and right side of the air conditioning unit, the front and both sides of the three panels on the front and both sides can be attached and detached independently according to the installation position during maintenance work of the air conditioning unit, etc. Maintenance and inspection work of each device in the air conditioning unit can be easily performed, and the degree of freedom of the installation position of the outdoor unit with respect to the air conditioning unit is increased.

[Brief description of the drawings]

FIG. 1 is a perspective view of a main part 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 of a main part 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 front view showing the internal structure of the air conditioning unit according to one embodiment of the present invention.

FIG. 5 is a side view showing the internal structure of the air conditioning unit according to one embodiment of the present invention.

FIG. 6 is a perspective view showing a detached state of a front panel and left and right side panels of the air conditioning unit according to one embodiment of the present invention.

FIG. 7 is a perspective view showing a state in which a front panel of a conventional air conditioning unit is released.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Outdoor unit 2 Air conditioning unit 3 Heat exchanger 4 Blower 5 Start-up duct 10 Suction duct 12 Refrigerant piping 26 Front panel 27 Left side panel 28 Right side panel

 ──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-62-162831 (JP, A) JP-A-56-138635 (JP, A) JP-A-57-160022 (JP, U) 32815 (JP, Y2)

Claims (1)

(57) [Claims] 1. Heat connected to a refrigerant pipe to an outdoor unit
An external air conditioning unit that incorporates an exchanger at the top, a blower at the bottom, and an internal duct for ventilation at an intermediate portion between the heat exchanger and the blower, and a front of the air conditioning unit. Removably attached to,
A front panel covering the front side of the equipment in the air conditioning unit portion which is freely connected to the refrigerant pipe of the heat exchanger, detachably mounted on the right and left side surfaces of the air conditioning unit section, the refrigerant pipe of the heat exchanger An air conditioning unit, comprising: a left side panel and a right side panel that cover left and right sides of devices in the air conditioning unit that can be connected to the air conditioning unit.