JPH0933066A - Air conditioner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide flexibility toward an installation space, and eliminate a mounting work of a refrigerant pipeline by housing the whole structural parts of a refrigeration cycle in outdoor equipment and allowing the indoor equipment to communicate with the outdoor equipment by way of a duct. SOLUTION: An indoor heat exchanger 23 is incorporated inside an indoor equipment 2 where an indoor air is fed from the indoor equipment 2 in a duct to the outdoor equipment, passing by from an air supply section 16 to a suction air supply passage 12 of the indoor heat exchanger 23 and is heat-exchanged at the indoor heat exchanger 23. The indoor air thus heat exchanged passes through an air supply section 17 and returns to the indoor area. The flow of the indoor air supply allows the indoor air to heat-exchange with refrigerants by the indoor heat exchanger 23 during cooling and heating operations or dehumidifying operation, thereby controlling for a target temperature or a target humidity. This indoor air is fed to the duct 3 from an indoor suction opening of this indoor equipment and circulated through the outdoor equipment 2 and returned indoors by way of the duct 3 after having passed through the indoor heat exchanger 23.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air conditioner.

[0002]

2. Description of the Related Art In a conventional air conditioner, an integrated unit is installed through a wall or window of a house, or the unit is divided into an indoor side and an outdoor side, and refrigerant pipes are connected to each other. It was supposed to circulate a refrigerant and perform air conditioning. Further, in the air conditioner of the type in which the indoor unit is embedded in the ceiling as in Japanese Utility Model Laid-Open No. 61-98924, the dehumidified water generated during the cooling operation or the dehumidifying operation is discharged to the outside using a pump. Even if the conventional indoor unit was installed in the basement, the same treatment had to be performed. Further, as disclosed in Japanese Patent Application Laid-Open No. 49-105346, there is a device for performing a comfortable energy-saving ventilation / air-conditioning operation by utilizing a refrigeration cycle when performing ventilation during cooling operation or heating operation. It was used individually, but the structure of the air duct was complicated, and the ventilation operation during dehumidification was not specified.

[0003]

With the conventional air conditioner,
When the indoor side and the outdoor side are separated, it is necessary to penetrate the wall of the house to connect the refrigerant pipe to the indoor unit and the outdoor unit during installation, and the indoor and outdoor units are integrated. However, there was a drawback that the installation location was extremely limited. Therefore, an object of the invention of claim 1 is to separate the indoor unit and the outdoor unit so as to provide a degree of freedom in the installation location of the air conditioner, and to eliminate the work of installing the refrigerant pipe when installing the air conditioner. Furthermore, the object of the invention of claim 4 is to further expand the degree of freedom of the installation location of the air conditioner so that even if the installation location is determined at the time of installation, one device can handle it. Further, an object of the invention of claim 2 is to omit a pump used for draining dehumidified water when the indoor unit is hung on the ceiling or installed by being embedded therein. The purpose is also to eliminate the pump used for draining dehumidified water when the indoor unit is installed in the basement. Further, claim 5 and claim 6
An object of the present invention is to simplify the structure of the air passage in the air conditioner and to perform a comfortable energy-saving ventilation air conditioning operation by switching only two dampers. The object of the invention of claim 7 is to perform a ventilation operation. To suppress the increase in indoor humidity.

[0004]

In order to achieve the above object, in claim 1 of the present invention, all the structural parts of the refrigeration cycle are housed in the outdoor unit, so that the connecting work of the refrigerant pipes at the time of installation is omitted. . Along with that, the indoor unit and the outdoor unit are connected via a duct. Claim 4
Therefore, even if the installation position of the indoor unit and the outdoor unit changes, one type of equipment can be used to adjust the form of the duct and the connecting position of the duct to the outdoor unit. Can be communicated via a duct. Further, in claim 2 and claim 3, when the indoor unit is installed in the ceiling or the basement, the indoor unit side heat exchanger is built in the outdoor unit, and the indoor unit and the outdoor unit are connected through a duct to provide an air conditioning function. The dehumidified water generated in the indoor heat exchanger is dropped from the outdoor unit and treated so that the dehumidified water can be treated without using a pump. In addition, according to claims 5 and 6 of the present invention, in order to perform comfortable energy-saving ventilation air conditioning when performing ventilation during air conditioning, the air entering the room by utilizing the refrigeration cycle is kept at room temperature by the indoor heat exchanger. After temperature control to the target temperature, send it indoors,
The air discharged to the outside of the room was recovered by the outdoor heat exchanger. In order to exert the above-mentioned function, in claim 7, when the humidity of the outdoor air is high even in the ventilation operation when not air-conditioning, the same operation as the ventilation operation during the dehumidifying operation is performed in order to avoid an increase in indoor humidity. To do.

[0005]

In the present invention, since all the components of the refrigeration cycle are housed in the outdoor unit, it is not necessary to connect the indoor unit and the outdoor unit with the refrigerant pipe when installing the air conditioner. In this case, the indoor unit and the outdoor unit are connected via a duct to exchange heat between the indoor air and the refrigerant in the indoor heat exchanger, and the indoor air is sent to the indoor heat exchanger and returned to the room. Exert function. As a result,
By incorporating the indoor heat exchanger in the outdoor unit, the dehumidified water generated in the indoor heat exchanger during the cooling operation or the dehumidifying operation can be dropped from the outdoor unit and treated. Therefore, unlike the conventional air conditioner, when installing the indoor unit on the ceiling or installing the indoor unit in the basement, it is not necessary to use a pump to process the dehumidified water generated in the indoor heat exchanger. .

By the way, even when the indoor unit and the outdoor unit are connected using a duct, it may be necessary to change the installation positions of the indoor unit and the outdoor unit depending on the situation of the house or the demand of the consumer. The following measures are taken in order to handle the problem with one type of device. When the installation position of the indoor unit and the outdoor unit changes, the form of the duct changes accordingly, but along with that, it is necessary to adjust the connecting position of the duct to the outdoor unit and also change the structure of the air duct for the indoor air inside the outdoor unit. There is. In view of this, according to claim 4 of the present invention, regarding the structure of the outdoor unit, the connecting portion with the duct is made large and the direction of the air blow passages on the suction side and the discharge side of the indoor heat exchanger in the outdoor unit is set to the duct. It was changed according to the installation position. Specifically, the air blower from the indoor unit of the duct to the outdoor unit is connected to the air blow path on the suction side of the indoor heat exchanger, and the air blower from the outdoor unit of the duct to the indoor unit is connected to the indoor heat exchanger. Be in communication with the air passage on the discharge side. As a result, the indoor air exchanges heat with the refrigerant in the indoor heat exchanger and returns to the room, but here, the portion that is not connected to the duct at the joint with the duct of the outdoor unit is shielded and the indoor air and the outdoor air are shielded. Try to avoid the mixed flow of. In addition, it is necessary to change the connection part with the duct of the outdoor unit so that it also leads to the connection part that also uses the air blow paths on the suction side and the discharge side of the indoor heat exchanger, but this must be changed. An air flow direction plate for adjusting the air flow direction is provided near the air conditioner so that the air in and out of the joint is lubricated.

Further, in claims 5 and 6 of the present invention, a ventilation operation is performed in which the damper is used to change the air flow path in the outdoor unit so that the air entering from the outside is sent to the room and the air in the room is taken to the outside. It is carried out. In this case, the air entering from the outside to the room passes through the indoor heat exchanger, and the air exiting from the room to the outside passes through the outdoor heat exchanger, and the compressor is driven to utilize the refrigeration cycle during ventilation operation. To do so.
When performing ventilation during cooling operation by this action, the air entering the room from the outside is cooled by the indoor heat exchanger and enters the room without changing the room temperature, and the air exiting from the room to the outside heat exchange. It is heated by the vessel and the exhaust heat is recovered and goes out of the room. Similarly, when ventilating during heating operation, the air that enters the room from the outside is heated by the indoor heat exchanger and enters the room without changing the room temperature, and the air that exits the room by the outdoor heat exchanger. It is cooled and exhaust heat is recovered and goes out of the room. Further, even when ventilation is performed during the dehumidifying operation, the refrigeration cycle is utilized to dehumidify the air entering the room from the outside to enter the room. In this case, as a method of dehumidifying the outdoor air, the indoor heat exchanger is divided into two parts, a cooling part and a heating part, to cool and heat the air entering the room from the outside at the same time, and the air entering the room from the outside to the room. Either of the methods of dehumidifying by heating with a heater after cooling with an inner heat exchanger is adopted. The action of ventilating during the dehumidifying operation can be widely used when it is desired to control other indoor humidity. In claim 7 of the present invention, a method of controlling indoor humidity when ventilating when not air-conditioned is shown. There is. When the outdoor humidity is higher than the appropriate indoor humidity, if the ventilation operation without driving the refrigeration cycle is performed, the indoor humidity becomes high and there is a risk of impairing comfort. Therefore, at this time, if the operation similar to the case of performing ventilation during the dehumidifying operation is performed, the air that enters the room from the outside is dehumidified, and therefore the indoor humidity does not increase. The above is the main function of comfortable energy-saving ventilation air conditioning operation.

[0008]

【Example】

(Embodiment 1) Hereinafter, one embodiment of the present invention will be described with reference to FIGS.
This will be described below. This embodiment is intended to prove claim 1, and the outdoor unit 2 is hung below a veranda or a balcony, the indoor unit 1 is hung on a wall, and the duct that penetrates the indoor unit 1 and the outdoor unit 2 through the wall. It is an example in the case of connecting at 3. FIG. 1 is a cross-sectional view of an outdoor unit 2 suspended from a balcony or a balcony as seen from the side, FIG. 2 is a side view of an installed state of the indoor unit 1 and the outdoor unit 2, and FIG. 3 is an outdoor unit. It is sectional drawing seen from the upper part of FIG. As shown in FIG. 1, the outdoor unit 2 has a built-in indoor heat exchanger 23, and the indoor air is blown from the indoor unit in the duct to the outdoor unit by the air blower 16 from the indoor side heat exchanger. The air is passed through the passage 12 and is heat-exchanged by the indoor heat exchanger 23, and the blower portion 1 from the outdoor unit in the discharge side air duct 13 and the duct of the indoor heat exchanger to the indoor unit.
Pass 7 and return to the room. Due to the flow of the indoor air, the indoor air is heat-exchanged with the refrigerant by the indoor heat exchanger 23 during the cooling operation, the heating operation, or the dehumidifying operation to be controlled to the target temperature or the target humidity. As shown in FIG. 2, the flow of the indoor blower is sent to the duct 3 from the indoor air suction port 14 of the indoor unit 1 by the operation of the indoor blower 25, and circulates in the outdoor unit 2 to generate the indoor heat as described above. After passing through the exchanger 23, through the duct, the indoor air discharge port 1 of the indoor unit 1
It is returned to the room from 5. As shown in Fig. 1, the indoor heat exchanger 2
Since 3 is housed in the outdoor unit 2, the entire refrigeration cycle portion is housed in the outdoor unit 2 as shown in FIG. Here, the flow of the refrigerant in the refrigeration cycle shown in FIG. 3 will be described. During the cooling operation or the dehumidifying operation, the high-temperature and high-pressure refrigerant gas discharged from the compressor 21 is discharged from the compressor discharge pipe 3
After being condensed into the outdoor heat exchanger 24 through the outdoor heat exchanger inlet pipe 35 by the action of the 1-to-four-way switching valve 27, the pressure is reduced from the outdoor heat exchanger outlet pipe 36 by the pressure reducing valve 22 to the indoor side. The heat enters the indoor heat exchanger 23 through the heat exchanger inlet pipe 33 and evaporates, and returns from the indoor heat exchanger outlet pipe 34 to the compressor 21 through the compressor suction pipe 32 by the action of the four-way switching valve 27. During the heating operation, the high-temperature and high-pressure refrigerant gas discharged from the compressor 21 passes from the compressor discharge pipe 31 to the indoor heat exchanger outlet pipe 34 by the action of the four-way switching valve 27 and the indoor heat exchanger 2
3 and after being condensed, the pressure is reduced from the indoor side heat exchanger inlet pipe 33 by the pressure reducing valve 22, and the outdoor side heat exchanger outlet pipe 3
6 enters the outdoor heat exchanger 24 and evaporates, and returns from the outdoor heat exchanger inlet pipe 35 to the compressor 21 through the compressor suction pipe 32 by the action of the four-way switching valve 27. By this operation, the indoor air is cooled by the indoor heat exchanger 23 during the cooling operation and heated during the heating operation to enable air conditioning in the room, and during the dehumidifying operation, the indoor air is heated by the indoor heat exchanger 23. After being cooled, it is heated by the dehumidifying heater 38 to enable air conditioning. From the above, as shown in FIG. 2, the indoor unit 1
The air-conditioning engine is established only by connecting the outdoor unit 2 and the outdoor unit 2 with the duct 3, and all the components of the refrigeration cycle are housed in the outdoor unit 2. Therefore, it is not necessary to connect the indoor unit 1 and the outdoor unit 2 with a refrigerant pipe. . Further, in FIG. 1, the flow of outdoor air in the outdoor unit 2 is the same as in a normal outdoor unit, and the outdoor air entering from the outdoor air suction port 18 is heat-exchanged by the outdoor heat exchanger 24 by the operation of the outdoor air blower 26. The air is discharged from the outdoor air discharge port 19.
In FIG. 3, the compressor 21, the pressure reducing valve 22, the four-way switching valve 2 are shown.
7, indoor blower motor 28, outdoor blower motor 29
Also, the electric component 5 for driving the dehumidifying heater 38 is built in, but each wiring is omitted in FIG.

In this embodiment, the outdoor unit 2 is hung on the veranda or the balcony, which is shown in FIG. 2, but the same is true when the outdoor unit 2 is hung on the roof.

(Embodiment 2) With respect to the installation of the outdoor unit 2 described in claim 1, an embodiment in which the outdoor unit 2 is embedded in a veranda or a balcony will be described. FIG. 4 is a diagram showing the relationship between the installed state of the indoor unit 1 and the outdoor unit 2 when the outdoor unit 2 is embedded in a balcony or balcony and the indoor unit 1 is hung on the indoor wall, and FIG. 5 is the case described above. 3 is a cross-sectional view of the outdoor unit 2 of FIG. The internal structure of FIG. 5 is almost the same as that of FIG. 1 except that the connecting portion 8 with the duct of the outdoor unit is on the rear surface of the outdoor unit 2 in FIG. 2 is located on the lower surface. This is an indoor unit 1 and an outdoor unit 2 as shown in FIG.
If the heights of the ducts are different, it is not possible to connect the ducts 3 side by side. Therefore, the ducts 3 should be pulled down from the outdoor unit 2 once, and the ducts 3 should be bent into an L-shape to connect to the indoor unit 1. is there. In this case, the operation method of indoor air blowing for air conditioning, the operation method of outdoor air blowing, the operation method of the refrigeration cycle, and the operation method of the dehumidifying heater are the same as those shown in the first embodiment.

(Embodiment 3) Here, with respect to the installation of the outdoor unit 2 shown in claim 1, an embodiment in which a part of the outdoor unit 2 is embedded in a wall will be described. Fig. 6 shows a part of the outdoor unit 2 on the wall on the second floor when there is no balcony, balcony or roof on the first floor in the house, and when it is not desired to install the outdoor unit 2 on the wall on the first floor. It is a figure when it embeds and the indoor unit 1 is installed in the wall of the first floor and the duct 3 which connects the indoor unit 1 and the outdoor unit 2 is built in the wall. In this case, the outdoor unit 2 has the reinforcement member 50.
Shall be fixed to the house. Specifically, the reinforcing member 50 is fixed to a reinforcing member of a house such as a beam as shown in FIG.
The outdoor unit 2 is attached to the reinforcing member 50. FIG.
Since the duct 3 is attached to the lower surface of the outdoor unit 2 as shown in FIG. 5, the internal structure inside the outdoor unit 2 is exactly the same as that shown in FIG. 5, and the operation method of indoor air blowing for air conditioning, the operation method of outdoor air blowing, The operation method of the refrigeration cycle and the operation method of the heater for dehumidification are the same as those in the first and second embodiments. Here, in FIG. 6, the outdoor unit is fixed using the reinforcing member 50, but in addition, the outdoor unit 2 is embedded in the wall as in FIG. 6 to suspend the outdoor unit 2 on the reinforcing member on the roof. A method of fixing with 7 is also conceivable.

(Embodiment 4) Next, an embodiment having the contents shown in claim 2 will be described with reference to FIG. FIG. 7 is an explanatory diagram showing an installation state in which the outdoor unit 2 is hung on a veranda or a balcony and the indoor unit 1 is hung on the ceiling as in the first embodiment. In FIG. 7, the indoor unit 1 is installed sideways relative to the case where it is hung on a wall. When a wall-mounted air conditioner in which the normal indoor heat exchanger 23 is built in the indoor unit 1 is laid horizontally on the ceiling as shown in FIG. 7 and hung, the indoor heat exchanger 23 will be used when the cooling operation or dehumidifying operation is performed. The dehumidified water falls down from the indoor air suction port 14 or the indoor air discharge port 15 of the indoor unit 1. However, if the indoor heat exchanger 23 is housed in the outdoor unit 2 as shown in FIG. 7 as in the present invention, the dehumidified water generated in the indoor heat exchanger 23 during the cooling operation or the dehumidifying operation is stored outdoors. It suffices to drain the drain from the unit 2 by using the action of gravity, and the water does not drop downward from the indoor unit 1. In FIG. 7 of this embodiment, the duct 3 is different from that of FIG.
1 has a complicated shape, the structure of the outdoor unit 2 is the same as that shown in FIG. 1, and the operating method of each air conditioning operation is the same as that shown in the first embodiment. In addition, in FIG. 7, as with the first embodiment, regarding the installation method of the outdoor unit 2, when hanging under the roof or when it is embedded in the veranda and balcony as shown in the second and third embodiments, the wall is not attached to the wall. Outdoor unit 2
It is possible to establish the air-conditioning engine only by changing the shape of the duct 3 in any case where a part of the above is buried.

(Embodiment 5) In this embodiment, the contents shown in claim 3 will be described with reference to FIG. In FIG. 8, the indoor unit 1 is hung on the wall of the basement, the outdoor unit 2 is hung on the balcony or balcony, and the duct 3 connecting the indoor unit 1 and the outdoor unit 2 is connected.
Indicates the state of being installed in the wall. When the indoor unit 1 is installed in the basement, it is installed at a height lower than the ground in most cases. In that case, in a normal air conditioner in which the indoor heat exchanger 23 is built in the indoor unit 1, the indoor heat exchanger 2 is operated during the cooling operation or the dehumidifying operation.
In order to drain the water dehumidified in 3, it becomes necessary to pump the dehumidified water onto the ground using a pump. However, in the present invention, as shown in FIG.
Since it is stored inside, when draining the dehumidified water, the outdoor unit 2
Draining is possible only by draining drainage from and draining dehumidified water to the drainage port installed on or near the ground. Also in this embodiment, the structure of the outdoor unit 2 is the same as that shown in FIG. 1, and the operation method of each air conditioning operation is the same as that shown in the first embodiment. Further, regarding the installation method of the outdoor unit 2, not only the balcony / balcony suspension type shown in FIG. 8 but also the roof suspension type or the balcony / balcony embedded type, the wall embedded type as shown in the second and third embodiments. In any of these cases, the air-conditioning engine can be established. In addition to the basement as shown in FIG. 8, in the case of a semi-basement, the position of the indoor unit 1 may be higher than the ground. However, the indoor heat exchanger 23 is built in the indoor unit 1 conventionally. When treating the dehumidified water with the air conditioner, it is difficult to install a drainage drain that drains the dehumidified water only by the action of gravity, and eventually it will be necessary to use a pump to drain the dehumidified water. . Therefore, the present invention is also effective when the indoor unit 1 is installed in the semi-basement.

(Embodiment 6) This embodiment also describes the contents of claim 3 similarly to the embodiment 5, but the difference from the embodiment 5 is only the installation position of the indoor unit 1. In the fifth embodiment, the indoor unit 1 was hung on the wall, but in this embodiment, the indoor unit 1 is hung on the ceiling of the basement as shown in FIG. Also in this case, as shown in the fourth or fifth embodiment, as for the dehumidifying water drainage, the indoor heat exchanger 23 is contained in the outdoor unit 2, so that the drainage drain only acts on the ground by the action of gravity. Can be poured over. The structure, operation method, and features of this air conditioner other than the duct 3 are the same as those of the fifth embodiment, and therefore their explanations are omitted.

(Embodiment 7) In this embodiment, the contents of claim 4 will be described with reference to FIGS. In the first to seventh embodiments, the form of the duct 3 and the position of the connecting portion 8 of the duct of the outdoor unit are changed depending on the installation position of the outdoor unit 1 or the outdoor unit 2. The position of the connecting portion 8 with the duct of the outdoor unit is
It was decided at the time of manufacturing the product, and it was treated as different products when the duct 3 was connected to the back surface and when it was connected to the lower surface. Here, the invention will be described in which one outdoor unit 2 is used even if the installation position of the indoor unit 1 or the outdoor unit 2 changes. Therefore, as a specific example, a method in which one outdoor unit corresponds to those shown in FIGS. 1 and 5 will be described. As described above, with respect to the installed state of the indoor unit 1 or the outdoor unit 2, FIG. 1 shows the connecting portion 8 with the duct of the outdoor unit installed on the back surface, and FIG. 5 shows the connecting portion 8 with the duct of the outdoor unit on the lower surface. Was installed in. Therefore, in order to deal with both of them, in FIG. 10 and FIG. 11, the connecting portion 8 with the duct of the outdoor unit is installed on both the back surface and the lower surface. In that structure, FIG. 10 shows a diagram in which the same correspondence as in FIG. 1 is set, and FIG. 11 shows a diagram in which the same correspondence as in FIG. 5 is set. In this case, since the duct 3 is connected to the rear surface in FIG. 10, the connecting portion 8 with the duct of the outdoor unit on the lower surface is in an open state. Therefore, as shown in FIG. 10, the shield plate 39 covers the connecting portion 8 that is open to the lower surface and is connected to the duct of the outdoor unit. Similarly, FIG. 11 shows the duct 3 on the lower surface.
Since they are connected to each other, the connecting portion 8 with the duct of the outdoor unit on the back surface is covered with the shielding plate 39. With the above, there is no problem in connection between the duct 3 and the outdoor unit 2, but with respect to the flow of indoor air in the outdoor unit 2, the duct 3 has exactly the same structure.
It is not possible to deal with both the case where is connected to the back surface and the case where the duct 3 is connected to the lower surface. Comparing FIG. 1 and FIG. 5, the shape of the partition 6 of the indoor air duct is also different. Therefore, in FIG. 10 and FIG. 11, in order to lubricate the flow of both indoor air blows, the wind direction control plate 20 is attached near the joint 8 with the duct of the outdoor unit so as to join the partition 6 of the indoor air blow passage. ing. The wind direction control plate 20 is a partition 6 for the indoor air duct.
It is set so that it can be rotated at the terminal end of the duct and the mounting direction can be changed, and is connected to the partition 49 in the duct as shown in FIGS. As a result, the blower section 16 from the indoor unit in the duct to the outdoor unit is connected to the suction side blower path 12 of the indoor heat exchanger, and the blower section 17 from the outdoor unit in the duct to the indoor unit and the indoor side heat are connected. The discharge-side air passage 13 of the exchanger is connected so that the indoor air does not leak anywhere, and the indoor air flows so that the indoor air does not cross between the suction side and the discharge side of the indoor heat exchanger 23. Can be configured. The above is a system in which the indoor unit 1 and the outdoor unit 2 can be structured by one type of the outdoor unit 2 regardless of how the first to seventh embodiments are installed. Although the above description is an example of the case where the connecting portion 8 with the duct of the outdoor unit has two surfaces, the rear surface and the lower surface, in addition to this, a large area of the connecting portion 8 with the duct of the outdoor unit is taken, and Machine 2
There may be a case where a change in the installation position of the indoor unit 1 and the outdoor unit 2 is dealt with by providing a connecting portion 8 with the duct of the outdoor unit on the side surface of the outdoor unit as well. It is possible to form a lubricating outdoor flow by adjusting the position of the wind direction control plate 20 that matches each structure by covering the portion of the joint portion 8 with the duct that is open to the outside with the shielding plate 39. is there.

(Embodiment 8) Next, an embodiment for explaining the contents of claim 5 will be described with reference to FIGS. FIG.
And FIG. 13 is a cross-sectional view of the outdoor unit 2 showing the structure when the energy-saving ventilation operation can be performed even during air conditioning. In the outdoor unit 2 shown in FIG. 12 and FIG.
The indoor air entering the outdoor unit 2 via the indoor heat exchanger 2
3, the damper 10 for switching between the case of passing through the outdoor heat exchanger 24 and the case of passing through the outdoor heat exchanger 24, the indoor side partition 55 with an indoor air intake opening, and the outdoor side partition 5 with an indoor air intake opening
6, a damper 10 for switching between passing the outdoor air entering the outdoor unit 2 through the indoor heat exchanger 23 and passing the outdoor air through the outdoor heat exchanger 24, and an outdoor air suction opening An indoor partition 57 and an outdoor partition 58 with an outdoor air intake opening are provided. Here, FIG. 12 is a diagram showing the position of the damper 10 during normal air conditioning, and the flow of indoor air blowing and the flow of outdoor air blowing. FIG. 13 shows the position of the damper 10 during ventilation during air conditioning and the outdoor air blowing. It is the figure which showed the flow of the air which enters into a room, and the flow of the air which enters into a room from the outside. In the outdoor unit 2 shown in FIG. 12 and FIG. 13, the indoor partition 55 with an indoor air intake opening has an indoor air intake opening 51 on the indoor side, and the indoor air intake opening with an outdoor partition 56 has an indoor space. The outdoor air suction opening 52 and the outdoor air suction opening indoor partition 57 are located outside the outdoor air suction opening 53 and the outdoor air suction opening outdoor partition 58 are located outside the room. Outdoor air intake opening 5
4 are provided, and the flow of each air can be configured by passing the indoor air or the outdoor air through each opening. At this time, the damper 10 closes the opening that should not pass the indoor air or the outdoor air. FIG. 14 is a view of only the damper 10 and each partition portion as viewed from the top. As shown in FIG. 14, the damper 10 is rotated by the damper motor 37, and the damper motor 37 is installed in the machine room 63.
It is connected to electrical equipment 5. Since FIG. 14 is a view from above, the indoor air intake opening 51 on the indoor side and the outdoor air intake opening 53 on the indoor side are hidden underneath and are not visible, but as shown in FIG. The area 10 is larger than the area of each opening to prevent air leakage. In FIG. 12 to FIG. 14, the damper 10 integrally controls the control of the indoor air flow and the control of the outdoor air flow by one damper motor 37, but controls them separately. A method is also conceivable. The flow of air in FIG. 12 is for normal air conditioning and is the same as that in FIG. 1, so description thereof is omitted here, and only the case of performing ventilation operation during air conditioning in FIG. 13 will be described. In the ventilation operation during air conditioning in FIG. 13, air entering from the outside enters the room through the indoor heat exchanger 23, and air entering from the room to the outdoor unit 2 exits the room through the outdoor heat exchanger 24. It is the flow of air coming out. At this time, when the compressor 21 is driven and the heat exchange between the refrigerant and the air is performed in each heat exchanger, the air entering the room from the outside is controlled to the target temperature and the target humidity at room temperature,
The air discharged from the room to the outside recovers the exhaust heat or the exhaust cold heat and goes out of the room. Therefore, even if ventilation is performed, the room temperature or humidity does not change, and comfortable air conditioning is continued, and the heat energy or cold energy of the air exiting the room is not released directly to the room. Instead, the energy is once absorbed by the refrigeration cycle, and is given to the air entering the room from the outside by the indoor heat exchanger 23, thereby exhibiting the energy saving effect. The energy saving effect in this case appears as an improvement in the efficiency of the refrigeration cycle.

Next, the control method of the ventilation operation during the air conditioning will be described with reference to the block diagram of FIG. 15 and the flowchart of FIG. In FIG. 15, the microcomputer 40
A memory 41, a CPU 42, an input circuit 43, and an output circuit 44 are incorporated therein, and the signals and data sent from the temperature sensor 47, the humidity sensor 48, and the remote controller 46 are processed in the microcomputer 40, and the compressor 2
1, motor 28 for indoor blower, motor 2 for outdoor blower
9, the damper motor 37, the dehumidifying heater 38, the four-way switching valve 27 and the pressure reducing valve 22 are driven. The microcomputer 40 is built in the electric device 5 shown in FIG.
Each wiring is omitted in FIG. FIG. 16 is a flowchart showing the driving of each device when performing ventilation during air conditioning.
The operation of each component shown in the block diagram of FIG. 15 when performing ventilation during air conditioning will be described with reference to FIG. However, since FIG. 16 is a flowchart showing the operation during ventilation during air conditioning, detailed operations at the start or end of air conditioning are omitted. First, when the operation is set by the remote controller 46, the compressor 1, the blowers, and the solenoid valves are activated according to the operation command, and the designated air conditioning is started. Therefore,
Check whether the ventilation command is issued during the air conditioning C
When the PU42 is continuously used and a ventilation command is issued, CP
The damper motor 37 is driven from U42 via the output circuit 44, and the damper 10 is installed in the ventilation type shown in FIG. Further, the ventilation command is checked by the CPU 42, and when the ventilation command disappears, the damper motor 37 is driven from the CPU 42 through the output circuit 44, and the damper 10 is installed in the normal operation one shown in FIG. . This operation is continued until the end of the operation, but when the ventilation command is not issued, the direction of the damper 10 is continuously set to the one for the normal operation shown in FIG. When it comes out, the compressor 21, the blowers, the dehumidifying heater 38, and the solenoid valves are operated in accordance with each operation instruction independently of the ventilation instruction. The ventilation command is issued by the user of the air conditioner, and the ventilation signal is transmitted from the remote controller 46 via the signal receiving unit 45 and the input circuit 43 to the C signal.
There is a case where it is sent to the PU 42, or a case where it is determined that “ventilation is necessary” due to the passage of time calculated by the CPU 42 for a periodic ventilation command stored in the memory 41.
The above is the control method for ventilation during air conditioning.

(Embodiment 9) In Embodiment 8, the outdoor unit 2 is installed inside or around the roof, veranda or balcony of the house, and the indoor unit 1 is installed indoors when it is installed inside or around the wall or ceiling of the house. The energy-saving ventilation operation of the air conditioner having the structure in which the duct 3 is interposed between the unit 1 and the outdoor unit 2 has been described. This is the combination of the indoor unit 1 and the outdoor unit 2 as shown in FIG. It is also possible in the case of construction. FIG.
In the structure shown in (1), the duct 3 is not provided, and the indoor unit 1 and the outdoor unit 2 are combined, but a part of the unit is fixed to the wall of the house. The indoor unit 1 and the outdoor unit 2 shown in FIG. 17 have the same structure as those shown in FIG. 12 or FIG. 13, and FIG. 17 shows the position of the damper 10 and the flow of air during the ventilation operation. The configuration is similar to that shown in FIG. As shown in FIG. 17, if the duct 9 of the indoor unit and the duct 8 of the outdoor unit are connected even when the duct 3 is not provided and the ventilation is lubricated, normal air conditioning or during air conditioning can be performed. The same ventilation operation as in Example 8 is possible. The control method in this case is the eighth embodiment.
Is the same as that shown in FIG.

(Embodiment 10) This embodiment is intended to prove the contents of claim 7. In Example 8 and Example 9, even when ventilation is performed during dehumidifying operation, ventilation can be performed while controlling indoor humidity. That is, during the normal dehumidifying operation, as shown in FIG. 12, the indoor air is cooled by the indoor heat exchanger 23 and then heated by the dehumidifying heater 38, returned to the room as dehumidified air, and ventilated during the dehumidifying operation. At times, as shown in FIG. 13, the indoor air is cooled by the indoor heat exchanger 23 and then heated by the dehumidifying heater 38 to enter the room as dehumidified air. By the way, FIG. 13 shows the flow of air when ventilation is performed, but this is the same operation when ventilation is performed when air conditioning is not performed. However, at this time, if the humidity of the outdoor air is higher than a reasonable value as the humidity of the living space, if the outdoor air is simply introduced into the room for ventilation, the indoor humidity will increase and comfort will increase. There is a risk of damaging. Therefore, when the outdoor air humidity detected by the humidity sensor 48 shown in FIG. 13 is higher than the appropriate indoor air humidity, if the same operation as in the case of ventilation during the dehumidifying operation is performed, the outdoor air entering the room will be It is dehumidified and the room air is controlled to a reasonable humidity. The control method in this case will be described with reference to the block diagram of FIG. 15 and the flowchart of FIG. In FIG. 18, when the ventilation operation is started, the damper 10 is installed at the ventilation operation position and the indoor blower 25 and the outdoor blower 26 are driven. During the ventilation operation, the humidity sensor 48 shown in the block diagram of FIG. 15 continuously detects the humidity of the outdoor air and sends the value to the CPU 42 via the input circuit 43. Therefore, the proper indoor air humidity stored in advance in the memory 41 is sent to the CPU 42, and when the CPU 42 determines that the humidity of the outdoor air is high, a signal is sent from the CPU 42 and compressed through the output circuit 44. The machine 21, the dehumidifying heater 38, and the four-way switching valve 27 are driven to form a refrigeration cycle in which the indoor heat exchanger 23 cools the outdoor air, and the dehumidifying heater 38 heats the outdoor air. This operation is continuously continued until the operation is completed. As a result, the humidity of the indoor air is stabilized and comfortable ventilation operation becomes possible.

[0020]

According to the first aspect of the present invention, the work of installing the refrigerant pipe at the time of installing the air conditioner is eliminated, and it is not necessary to install the outdoor unit on the outdoor site. Further, according to claim 2 of the present invention, a pump used for draining dehumidified water can be omitted when the indoor unit is hung on the ceiling or installed by being embedded, and according to claim 3 of the present invention. For example, when the indoor unit is installed in the basement, the pump used for draining dehumidified water can be omitted. Furthermore, according to the fourth aspect of the present invention, when the indoor unit and the outdoor unit are connected by the duct, the indoor unit and the outdoor unit can be installed at many positions with one device. Further, claim 5 of the present invention
According to claim 6, when performing ventilation operation during air conditioning, it is possible to perform energy-saving ventilation air conditioning that recovers the heat of the air that goes out of the room without changing the room temperature by switching only two dampers. Further, according to claim 7 of the present invention, it becomes possible to suppress an increase in the humidity of the indoor air when the ventilation operation is performed when the air conditioning is not performed.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of an embodiment of an outdoor unit of the present invention.

FIG. 2 is an explanatory diagram of an embodiment of an installed state of an indoor unit and an outdoor unit of the present invention.

FIG. 3 is a cross-sectional view of an example of the outdoor unit of the present invention.

FIG. 4 is an explanatory view of an embodiment of the installation state of the indoor unit and the outdoor unit of the present invention seen from the side.

FIG. 5 is a cross-sectional view of an example of the outdoor unit of the present invention.

FIG. 6 is an explanatory view of an embodiment of the installation state of the indoor unit and the outdoor unit of the present invention seen from the side.

FIG. 7 is an explanatory view of a second embodiment of the installation state of the indoor unit and the outdoor unit of the present invention seen from the side.

FIG. 8 is an explanatory view of a third embodiment of the installation state of the indoor unit and the outdoor unit of the present invention seen from the side.

FIG. 9 is an explanatory view of the third embodiment of the installation state of the indoor unit and the outdoor unit of the present invention seen from the side.

FIG. 10 is a cross-sectional view of a fourth embodiment of the outdoor unit of the present invention seen from the side.

FIG. 11 is a cross-sectional view of a fourth embodiment of the outdoor unit of the present invention seen from the side.

FIG. 12 is a cross-sectional view of a fifth embodiment of the outdoor unit of the present invention seen from the side.

FIG. 13 is a sectional view of a fifth embodiment of the outdoor unit of the present invention seen from the side.

FIG. 14 is a sectional view of a fifth embodiment of the damper mechanism of the present invention seen from above.

FIG. 15 is a block diagram of the present invention.

FIG. 16 is a flowchart of the present invention.

FIG. 17 is a cross-sectional view of an indoor unit and an outdoor unit of the present invention seen from the side.

FIG. 18 is a flowchart of the present invention.

[Explanation of symbols]

2 ... Outdoor unit, 3 ... Duct, 8 ... Connection part with duct of outdoor unit, 11 ... Partition between indoor side and outdoor side, 12 ... Suction side air passage of indoor side heat exchanger, 13 ... Indoor side heat exchanger Of the discharge side of the blower, 16 ... A blower section from the indoor unit in the duct to the outdoor unit,
17 ... A blower section from the outdoor unit in the duct to the indoor unit, 18 ...
Outdoor air suction port, 19 ... Outdoor air discharge port, 23 ... Indoor heat exchanger, 24 ... Outdoor heat exchanger, 26 ... Outdoor blower.

Claims (7)

[Claims] 1. An indoor heat exchanger for exchanging heat between indoor air and a refrigerant is installed in an outdoor unit, the indoor unit and the outdoor unit are connected by a duct, and indoor air is transferred from the indoor unit of the duct to the outdoor unit. After passing through the blower section, heat is exchanged with the refrigerant in the indoor heat exchanger, so that the air conditioning function is exerted by returning to the room through the blower section from the outdoor unit of the duct to the indoor unit, The outdoor unit is installed inside or around the roof, veranda and balcony of the house, or a part of the outdoor unit is embedded in the wall of the house to install the air conditioner. 2. The indoor unit is hung from the ceiling or is embedded in the ceiling, the indoor heat exchanger is installed in the outdoor unit, the indoor unit and the outdoor unit are connected by a duct, and indoor air is blown from the indoor unit to the duct. Through which heat is exchanged with the refrigerant in the indoor side heat exchanger and returned to the room through the duct so as to exert an air conditioning function, and the outdoor unit is installed inside or around the roof, veranda and balcony of the house, or An air conditioner in which a part of the outdoor unit is installed by being embedded in a wall of a house. 3. The indoor unit is hung on the wall of the basement, hung on the ceiling of the basement or embedded in the ceiling of the basement, the indoor heat exchanger is installed in the outdoor unit, and the indoor unit and the outdoor unit are ducted. The indoor air is communicated with the refrigerant from the indoor unit through the duct in the indoor heat exchanger and returned to the room through the duct to perform the air conditioning function, and the outdoor unit is a roof of a house, An air conditioner which is installed inside or around a veranda and a balcony, or is installed by embedding a part of the outdoor unit in a wall of a house. 4. A compressor, an indoor heat exchanger, an outdoor heat exchanger, a pressure reducing valve, and other parts constituting a refrigeration cycle are all housed in an outdoor unit, and the indoor unit and the outdoor unit are connected by a duct,
The indoor air is allowed to exchange heat with the refrigerant from the indoor unit through the duct in the indoor heat exchanger, and the air conditioning function is exerted by returning the indoor air through the duct. The opening area is set to be larger than the opening area of the connecting portion of the duct with the outdoor unit, or a plurality of connecting portions with the duct of the outdoor unit are provided, and the connecting portion of the outdoor unit with the duct has the duct. A portion that does not communicate with the ventilation unit is shielded, and in the air passage between the indoor heat exchanger and the connecting portion with the duct in the outdoor unit, the suction side and the discharge side of the indoor heat exchanger are respectively One or more wind direction plates that change the direction of the air flow path are provided, and the air flow path on the suction side of the indoor heat exchanger is adjusted by adjusting the position of the air flow direction plate according to the connection position of the duct with the outdoor unit. The air blow section from the indoor unit of the duct to the outdoor unit is communicated, and the air blow path on the discharge side of the indoor heat exchanger and the air blow section of the duct from the outdoor unit to the indoor unit are connected. A characteristic air conditioner. 5. A compressor, an indoor heat exchanger, an outdoor heat exchanger, a pressure reducing valve, and other parts constituting a refrigeration cycle are all housed in an outdoor unit, and the indoor unit and the outdoor unit are connected by a duct,
The outdoor air sucked into the outdoor unit is provided with a damper that switches between returning indoor air sucked into the outdoor unit through the duct to the room through the indoor heat exchanger and discharging the outdoor air through the outdoor heat exchanger. Is provided with a damper for switching between the case where the air is sent to the room through the indoor heat exchanger and the case where the air is returned to the room through the outdoor heat exchanger, and when performing normal air conditioning, the indoor air is sent to the room through the indoor heat exchanger. Return, outdoor air through the outdoor heat exchanger to set the position of each damper so as to return to the outside, when performing ventilation during air conditioning, indoor air is taken out through the outdoor heat exchanger, the outdoor air is The position of each damper is set so as to enter the room through the indoor heat exchanger, the compressor is driven even during ventilation during air conditioning, and heat exchange between refrigerant and air occurs in each heat exchanger. Air conditioner, characterized in that. 6. An indoor unit which is manufactured integrally or has an integrated structure in which an indoor unit and an outdoor unit are directly connected to each other and is installed by penetrating a wall of a house and sucking indoor air into the integrated unit. When a damper is provided to switch between returning to the room through the indoor heat exchanger and outdoor through the outdoor heat exchanger, and sending the outdoor air sucked into the integrated unit to the room through the indoor heat exchanger And a damper for switching between the case of returning to the outside through the outdoor heat exchanger, and during normal air conditioning, indoor air returns to the room through the indoor heat exchanger, and outdoor air passes through the outdoor heat exchanger. When the position of each damper is set to return to the outdoor and ventilation is performed during air conditioning, indoor air is discharged to the outside through the outdoor heat exchanger and outdoor air is discharged to the indoor through the indoor heat exchanger. Set the position of the dampers as add, also drives the compressor in ventilation in the air conditioner, the air conditioner characterized in that the heat exchange between the refrigerant and air occurs at each heat exchanger. 7. An air conditioner which, when ventilating during a dehumidifying operation, sends the air entering the room from the outside to the room after dehumidifying it through the indoor heat exchanger, when performing the ventilation when not air-conditioning, An air conditioner that performs the same operation as when performing ventilation during dehumidifying operation when the humidity of the outdoor air is higher than the indoor air humidity that is set as appropriate in advance.