JP3531425B2 - Air conditioner - Google Patents

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to an air conditioner.

[0002]

2. Description of the Related Art In a conventional air conditioner, one indoor unit is installed in one room, a refrigerant is circulated between the indoor unit and the outdoor unit, and heat is transferred inside and outside the room to cool the room. Was supposed to do. A signal transmission line is laid between the indoor unit and the outdoor unit, and a compressor or the like provided in the outdoor unit can be controlled by a command from the room by a remote controller or the like.

Further, there is also used a multi-room type air conditioner in which one indoor unit is installed in each of a plurality of rooms and the plurality of indoor units are connected to one outdoor unit. In such a multi-room air conditioner, signal transmission lines are laid between the indoor unit installed in each room and one outdoor unit, respectively, to operate a plurality of indoor units at the same time, Only the indoor unit installed in can be operated.

[0004]

The air conditioning capacity of the air conditioner as described above depends on the refrigerant circulation amount between the outdoor unit and the indoor unit,
It is determined by the heat exchange area of the heat exchanger or the air volume of the blower fan. Therefore, an air conditioner for installation in a large room is equipped with a large compressor, heat exchanger, blower fan, etc., so that a large amount of heat can be quickly transferred between the inside and outside of the room. .

However, even if it is possible to transfer a large amount of heat indoors and outdoors by the above-mentioned method, the conditioned air is blown out from one place in the room, so that the temperature distribution is unevenly distributed in a large room. This is apt to occur, and there is a problem that it takes a considerable amount of time for the air conditioning to become uniform and comfortable air conditioning can be performed. Also, even if it is sufficient to partially air-condition in a large room, the air conditioner as described above performs air-conditioning of the entire room. Therefore, when residents are unevenly distributed in a part of a large room, There was a problem of wasting energy.

The present invention has been made in order to solve the above-mentioned conventional drawbacks, and an object thereof is to enable air conditioning without causing a large uneven distribution of temperature distribution even in a large room and to save energy. It is to provide an air conditioner capable of doing the above.

[0007]

Therefore, the air conditioner according to claim 1 is configured by connecting two indoor units A and B capable of simultaneous operation to one outdoor unit X, and , Meanwhile
The indoor unit A of the predetermined wall 23 or a position near the wall 23
In addition, the other indoor unit B is attached to the wall 24 facing the wall 23.
Alternatively, in an air conditioner installed near each of the walls 24, a linked operation mode in which all the indoor units A and B are simultaneously operated and an individual operation mode in which only specific indoor units A and B are preferentially operated And can be switched,
The operating mode can be switched with the remote controller 10,
The indoor unit that is preferentially operated in the individual operation mode
The feature is that the settings of A and B can be changed by the remote controller 10 .

In the air conditioner according to the first aspect, in the interlocking operation mode, for example, the walls 23 and 2 facing each other are provided.
4 or the conditioned air is blown from each of the positions close to the walls 23 and 24, so that comfortable air conditioning can be performed even in a large room 25 without causing a large uneven distribution of temperature distribution. Moreover, when the users are unevenly distributed in one of the large indoor spaces 25, the operation is switched to the individual operation mode so that the air conditioning of the required portion is performed by the specific indoor unit A,
By giving priority to B, energy can be saved.

[0009] The air conditioner as claimed in claim 2, in the remote controller 10 is characterized in that a display unit 13 for displaying which one of the operation modes.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Next, specific embodiments of the air conditioner of the present invention will be described in detail with reference to the drawings.

FIG. 2 is a refrigerant circuit diagram of the air conditioner. This air conditioner is configured by connecting two indoor units A and B to one outdoor unit X. The discharge pipe 1a and the suction pipe 1b of the compressor 1 are connected to the refrigerant pipe 9 via a four-way switching valve 2. An outdoor heat exchanger 3, a liquid closing valve 6, and a gas closing valve 7 are provided in the refrigerant pipe 9, respectively. And these liquid closing valve 6 and gas closing valve 7
The indoor units A and B are branched into two refrigerant pipes 9 and 9, and electrically-operated expansion valves 4 and 4 and indoor heat exchangers 5 and 5 are provided, respectively. An accumulator 15 is provided in the suction pipe 1b.

In the air conditioner as described above, the four-way switching valve 2 is switched in the direction of the solid line to drive the compressor 1 so that the outdoor heat exchanger 3 functions as a condenser and each indoor heat exchanger 5 is operated. To function as an evaporator, thereby performing cooling operation. Further, by switching the four-way switching valve 2 in the direction of the broken line to drive the compressor 1, each indoor heat exchanger 5 functions as a condenser and the outdoor heat exchanger 3 functions as an evaporator, thereby performing a heating operation. I do.
As described above, the air conditioner can simultaneously operate the indoor units A and B, which allow the both indoor heat exchangers 5 to simultaneously function as evaporators or condensers, while adjusting the opening degrees of the electric expansion valves 4 and 4. Accordingly, it is possible to individually operate the indoor units A and B in which only one of the indoor heat exchangers 5 functions as an evaporator or a condenser.

FIG. 3 is a plan view showing a remote controller 10 for giving operation command information to the air conditioner. The remote controller 10 is provided with a switch SW 14 for switching between the interlocking operation (simultaneous operation) of the indoor units A and B and the individual operation, and the display unit 13 displays which operation mode is currently set. Further, FIG. 4 is a signal system diagram of the air conditioner. Each of the indoor units A and B is provided with a switch for setting an address.
The address of B can be switched to "1" or "2". In the figure, the address of the indoor unit A is set to "1" and the address of the indoor unit B is set to "2". Then, the signal transmitted from the remote controller 10 is received by the indoor unit A whose address is set to "1". Then, the operation command information input from the remote controller 10 to the indoor unit A is transmitted to the indoor unit B whose address is set to “2” via the signal transmission line 11, the outdoor unit X, and the signal transmission line 12.

Both indoor units A and B of the air conditioner are installed in a single room. FIG. 1 is a diagram showing various installation modes of the indoor units A and B in a single room 25. In the figure (a), both of the indoor units A and B are constructed as a wall-mounted type, and in the figure (d), one indoor unit A is constructed as a wall-mounted type and the other indoor unit B is constructed as a wall-mounted type. In the same figure (e), both indoor units A and B are constructed as a wall-embedded type, and the indoor units A and B are respectively opposed to walls 23 and 24.
Installed in a high place. Further, in FIG. 2B, both indoor units A and B are configured as a ceiling-embedded type, and are installed at positions close to the walls 23 and 24 facing each other on the ceiling 22. Then, in FIG. 6C, one indoor unit B shown in FIG.
Is configured as a wall-mounting type, and in FIG. 6 (f), the indoor unit B is configured as a wall-embedded type, and each indoor unit B is configured as a wall 24.
Installed in a high place. Further, in FIG. 9G, one indoor unit A is constructed as a wall-mounted type and is installed at a high place of the wall 23, and the other indoor unit B is configured as a wall-embedded type, and the wall 23 is formed.
It is installed at a low place of the wall 24 opposite to. The same figure (h)
Then, the indoor unit A of the two indoor units A and B shown in FIG. 9 (g), which is installed at a high place on the wall 23, is constructed as a wall-hanging type, and in FIG. The indoor unit A is configured as a ceiling-embedded type and is installed at a position in the ceiling 22 close to the wall 23.

1 (a) to 1 (f), the address of one indoor unit A is set to "1" and the address of the other indoor unit B is set to "2". Then, the switching SW 14 of the remote controller 10 is operated to set the interlocking operation mode,
From this remote controller 10, each operation command for cooling or heating is issued to one indoor unit A. Then, this operation command information is transmitted from the indoor unit A to the indoor unit B via the signal transmission line 11, the outdoor unit X, and the signal transmission line 12, and the indoor unit A and the indoor unit B are operated in the same state. . Then, since the conditioned air is blown out from the both walls 23 and 24 facing each other or the vicinity of these walls 23 and 24, the conditioned air can reach even the corners of the large room 25. Therefore, it is possible to quickly air-condition the room 25 to a uniform temperature and improve living comfort without causing a large uneven distribution of temperature. Further, since the signal transmission lines 11 and 12 have been conventionally provided for internal and external transmission, it is not necessary to add a special member, and therefore a significant cost increase is achieved as compared with the conventional multi-room air conditioner. There is no invitation.

On the other hand, in FIGS. 1 (a) to 1 (f),
The switching SW 14 of the remote controller 10 is operated to enter the individual operation mode, and each operation command for cooling or heating is issued from the remote controller 10. Then, this operation command information is received by the indoor unit A whose address is set to "1", and this indoor unit A
Only the cooling or heating is operated. Then, when the occupants are unevenly distributed on one wall 23 side in the large room 25, it is possible to air-condition only a necessary part of the large room 25, so that energy saving of the air-conditioning operation can be achieved. . When the resident is unevenly distributed on the side of the other wall 24, if the address of the indoor unit B is set to "1" and the address of the indoor unit A is set to "2", the same as above. Air-conditioning operation that saves energy can be performed.

1 (g) to 1 (i), one indoor unit A is installed at a high place of the wall 23 or the ceiling 2 close to the wall 23.
2 is installed, and the other indoor unit B is installed in a low place of a wall 24 facing the wall 23. Therefore, the conditioned air is the indoor 2
5 is blown out from above and below, so that comfortable air conditioning can be performed without causing a large uneven distribution of temperature distribution in the room 25 in the vertical direction. In particular, since the temperature at the feet of the occupants can be reliably increased during the heating operation, air conditioning comfort can be further improved. Further, also in this case, by operating the switching SW 14 of the remote controller 10, the indoor units A and B can be individually operated.
At this time, the address of the indoor unit A is "1" and the address of the indoor unit B is "2" during the cooling operation, while the address of the indoor unit A is "2" and the address of the indoor unit B is "1" during the heating operation. Then, cold air is blown from a high place in the room 25 during the cooling operation, and hot air is blown from a low place in the room 25 during the heating operation, so that it is possible to improve the air conditioning comfort while saving energy. .

Although the specific embodiments of the present invention have been described above, the present invention is not limited to the above-mentioned embodiments, and various modifications can be carried out within the scope of the present invention. In the above, when the two indoor units A and B are simultaneously operated in conjunction, the address of the indoor unit A is set to "1" and the address of the indoor unit B is set to "2". It may be set to. Further, in the above, the indoor units A and B that perform the air conditioning operation in the case of the individual operation are determined by setting the address to “1”, but the address is fixed to either “1” or “2”. Alternatively, the addresses of the indoor units A and B to be operated may be designated from the remote controller 10. Furthermore, in the above, two indoor units A and B
Is installed in the room 25, but in a larger room 25, a third indoor unit and a fourth indoor unit may be additionally installed.

[0019]

In the air conditioner according to the first aspect of the present invention, in the interlocking operation mode, the conditioned air is blown from the mutually facing walls or the positions close to these walls, so that the air conditioner is large even in a large room. Comfortable air conditioning can be performed without uneven distribution of temperature distribution.
Moreover, when users are unevenly distributed in one side of a large room, it is possible to save energy by switching to the individual operation mode and preferentially air-conditioning the required parts in specific indoor units. It will be possible.

[Brief description of drawings]

FIG. 1 is a diagram showing various installation modes of an air conditioner according to an embodiment of the present invention.

FIG. 2 is a refrigerant circuit diagram of the air conditioner.

FIG. 3 is a plan view of a remote controller included in the air conditioner.

FIG. 4 is a signal system diagram of the air conditioner.

[Explanation of symbols]

11 signal transmission line 12 signal transmission line 22 ceiling 23 walls 24 walls 25 indoor X outdoor unit A indoor unit B indoor unit

─────────────────────────────────────────────────── --- Continuation of the front page (56) References JP-A-9-137990 (JP, A) JP-A-7-35388 (JP, A) JP-A-7-27395 (JP, A) JP-A-6- 272981 (JP, A) JP-A-6-101894 (JP, A) JP-A-6-50595 (JP, A) JP-A-6-50593 (JP, A) JP-A-5-312378 (JP, A) JP-A-5-87384 (JP, A) (58) Fields investigated (Int.Cl. ⁷ , DB name) F24F 11/02 102

Claims (2)

(57) [Claims] 1. Two outdoor units (X) capable of operating simultaneously
Two indoor units (A) and (B) are connected, and one indoor unit (A) is connected to a predetermined wall (2 ) in a single indoor room (25).
3) or a position close to this wall (23), in the other room
The machine (B) with the wall (24) facing the wall (23) or
In an air conditioner installed near each wall (24), priority is given to the interlocking operation mode in which all the indoor units (A) and (B) are simultaneously operated and the specific indoor units (A) and (B). The operation mode is configured to be switchable between the individual operation mode in which the remote control (10) operates.
It is possible to replace, and it has priority in the above individual operation mode.
Set the indoor units (A) and (B) that are driven to
An air conditioner characterized by being changeable in 0) . 2. The air conditioner according to claim 1 , wherein the remote controller (10) is provided with a display section (13) for displaying which operation mode is in use.