JP3873945B2 - Air conditioner - Google Patents

Description

  The present invention relates to an air conditioner that has a ventilation function and an oxygen enrichment function, and makes it possible to bring the air in a room closer to the natural world.

As a conventional technology aimed at recovering oxygen concentration, which tends to be insufficient in air-conditioned rooms, an oxygen concentrator using an oxygen-enriched membrane and a blower fan that transports oxygen-enriched air are installed outside the air conditioner. It has been proposed to supply a high oxygen concentration air to an indoor unit. (For example, see Patent Document 1)
Moreover, the air conditioner provided with the air separation means which isolate | separates oxygen, nitrogen, etc. in air with the same content is described. (For example, see Patent Document 2)

  In recent years, the airtightness of houses has been increasing, and there has been an increase in CO2 concentration, which has not been a problem in the past, formaldehyde released from building materials, especially NOx and SOx, which are abundantly contained in urban air. Inclusion in indoor air has been regarded as a problem. On the other hand, in recent air conditioners, an electric dust collector having an air purifying function is arranged on the windward side of the heat exchanger in the indoor unit body of the air conditioner for the purpose of removing dirt in the room air. The ones that have been set are proposed. (For example, see Patent Document 3)

Japanese Examined Patent Publication No. 7-109313 (page 3, FIG. 1) Japanese Patent Publication No. 7-30927 (page 2-3, FIG. 1) Japanese Patent Laid-Open No. 10-78235 (Section 2-3, FIGS. 1 and 2)

However, although the above-mentioned air cleaning function can collect dust such as dust, pollen, cigarette smoke, etc., which are dirt in the air, it is difficult to reduce the CO2 concentration in the air-conditioned room. In addition, even if air with high oxygen concentration is supplied indoors to the air-conditioned room, carbon dioxide (CO2) concentration generated by human breathing and formaldehyde which is a harmful substance released from residential building materials Therefore, there is a problem that indoor air pollution cannot be improved and a healthy room air environment cannot be supplied.
In addition, even in an air conditioner equipped with a ventilation function, there is little effect of improving the oxygen concentration in the room, and in urban areas and the like, dirty air from outside air enters the room, so the contamination of the room air cannot always be improved. In addition, in order to improve the oxygen concentration sufficiently with the ventilation function, the ventilation function for obtaining a considerable ventilation volume increases in size and costs, and the conditioned air is discharged to the outside. Therefore, there is a problem that the heat efficiency is poor and the original cooling and heating performance is deteriorated.
Similarly, in an air conditioner equipped with an air cleaning function, dust and cigarettes floating in the air in the room can be removed, but carbon dioxide cannot be removed, and of course the oxygen concentration in the room. There was a problem that could not be improved.

  The present invention has been made to solve such a problem, and achieves both improvement of oxygen concentration which tends to be insufficient in air-conditioned rooms and removal of harmful substances such as carbon dioxide, formaldehyde, NOx and SOx. , Providing an air conditioner that can achieve air quality in a room that is closer to the natural world with high performance, and that can be compact, reduce costs, improve installation workability, and simplify operability It is.

An air conditioner according to the present invention includes an indoor unit and an outdoor unit, and the indoor unit includes at least an indoor fan, an indoor heat exchanger, and an indoor control device, and the outdoor unit includes a compressor and an outdoor heat exchange. In an air conditioner having an air conditioner and an outdoor fan, a pressure reducing device, and an outdoor control device, the oxygen enrichment device that supplies oxygen-enriched air to the room by enriching the air in the outside air, and ventilation for connecting the room and the outside air A ventilation device connected to the duct, wherein the oxygen enrichment device is installed in an outdoor unit to introduce oxygen-enriched air into the room, and the outer diameter of the oxygen-enrichment duct is set outside the ventilation duct. The refrigerant connection piping to the indoor side heat exchanger and the dew condensation water from the indoor side heat exchanger are placed outside in the wall hole for piping for connecting the indoor unit and the outdoor unit to 1/2 or less of the diameter. The drain hose to be discharged and the ventilation duct are approximately triangular. With arranging in which the oxygen enriched duct disposed adjacent to the ventilation duct.

An air conditioner according to the present invention includes an indoor unit and an outdoor unit, and the indoor unit includes at least an indoor fan, an indoor heat exchanger, and an indoor control device, and the outdoor unit includes a compressor and an outdoor heat exchange. In an air conditioner having an air conditioner and an outdoor fan, a pressure reducing device, and an outdoor control device, the oxygen enrichment device that supplies oxygen-enriched air to the room by enriching the air in the outside air, and ventilation for connecting the room and the outside air A ventilation device connected to the duct, wherein the oxygen enrichment device is installed in an outdoor unit to introduce oxygen-enriched air into the room, and the outer diameter of the oxygen-enrichment duct is set outside the ventilation duct. The refrigerant connection piping to the indoor side heat exchanger and the dew condensation water from the indoor side heat exchanger are placed outside in the wall hole for piping for connecting the indoor unit and the outdoor unit to 1/2 or less of the diameter. The drain hose to be discharged and the ventilation duct are approximately triangular. Since the oxygen enriched duct with arranged and disposed adjacent to the ventilation duct, compatible with scarce oxygen concentration adjustment, and removal of dust and carbon dioxide and hazardous substances in the room air The air quality of the room that is closer to the natural world can be realized with high performance, and the ventilation function and oxygen enrichment can be achieved without substantially reducing the cooling and heating performance without increasing the size of the indoor unit that has installation restrictions in the room It is possible to achieve both functions and to improve the installation workability.

Embodiment 1 FIG.
Hereinafter, an embodiment of the air conditioner of the present invention will be described in detail.

The first embodiment of the present invention is an indoor / outdoor separation type air conditioner having an indoor unit and an outdoor unit, and an air conditioner capable of varying the capacity of the compressor by inverter control is shown as an example. This will be described based on 1.
In FIG. 1, a compressor 1, a refrigerant flow switching valve 5 (hereinafter referred to as a four-way valve), an outdoor heat exchanger 8, a pressure reducing device 7, and an indoor heat exchanger 6 are sequentially provided, and a refrigerant compression cycle is provided. The outdoor heat exchanger 8 and the indoor heat exchanger 6 are provided with an outdoor fan 11 and an indoor fan 9, respectively. The compressor 1 is an inverter drive system in which the rotation speed can be varied. The room control device 15 provided in the indoor unit detects the room temperature detected by the room temperature detection thermistor 19 built in the indoor unit and the indoor air conditioning conditions desired by the remote controller 22. The outdoor control device 16 provided in the outdoor unit is detected by calculating the difference between the set temperature and the building load by detecting the building load and calculating the operation rotational speed of the compressor mounted on the outdoor unit according to the building load. Transmit driving information to. The outdoor control device 16 automatically controls the compressor driving rotational speed based on the operation information from the indoor control device 15, thereby condensing the refrigerant discharged from the compressor on the condensation side heat exchanger, the decompression device, and the evaporation. It constitutes a refrigeration cycle that circulates to the side heat exchanger and compressor.

  Further, the outdoor control device 16 receives a cooling operation command or a heating operation command from the indoor control device 15, and during the cooling operation, the outdoor heat exchanger 8 is used as a condenser and the indoor heat exchanger 6 is used as an evaporator. The four-way valve 5 for controlling the flow of the refrigerant is controlled. Conversely, during the heating operation, the four-way valve 5 is controlled so that the refrigerant flows through the indoor heat exchanger 6 as a condenser and the outdoor heat exchanger 8 as an evaporator. Further, R410A, which is an HFC refrigerant, is used as a refrigerant to be sealed in the refrigeration cycle.

  The outdoor unit includes an oxygen-enriched film built-in unit 101 for increasing the oxygen concentration and a vacuum pump 102, and oxygen-enriched air that is housed in the outdoor unit and connected to the oxygen-enriched film built-in unit 101 via the vacuum pump 102. A duct (outdoor unit side) 103a is provided. And, in order to introduce the oxygen-enriched air generated by the oxygen-enriched membrane into the indoor side, it is provided with an oxygen-enriched air connecting duct 104 that connects the indoor unit side and the outdoor unit side with a duct, and its connection joint 104a and 104b can be easily connected. Also, the indoor unit is provided with an oxygen-enriched air duct (indoor unit side) 103b and an oxygen-enriched air outlet 105 connected thereto to blow out oxygen-enriched air into the room. The oxygen-enriched air connection duct 104 and the indoor unit side oxygen-enriched air duct 103b use small-diameter tubes having an outer diameter of 6 mm.

  The functional film used for the oxygen-enriched film built-in unit 101 is a functional film (oxygen-enriched film) that is particularly permeable to oxygen in molecules such as oxygen and nitrogen in the air, and has passed through the oxygen-enriched film. The air can produce about 30% air having an oxygen concentration higher than the natural concentration of about 21%. Further, in order to facilitate the permeation of air through the oxygen-enriched film, high-concentration oxygen is extracted by reducing the pressure with a vacuum pump 102 provided on the secondary side of the oxygen-enriched film. Concentrate oxygen into the room.

  The indoor unit includes a ventilation device 201 and a ventilation duct 202. Here, the ventilation duct 202 uses a caliber duct having an outer diameter of 25 mm. As shown in the internal configuration diagram of the ventilator in FIG. 6, the ventilating fan 204 of the ventilator is fixed to the ventilating motor 205 via the ventilating motor case 207, and the indoor air is exhausted to the outside in the ventilating casing 206. In addition to rotational driving, it is possible to reversely rotate the fan in the direction in which the outside air is supplied into the room by reversing the rotation of the blower. Furthermore, the air conditioner is provided with an indoor air contamination detection sensor 21 which is an air quality detection means for detecting air contamination. When the sensor 21 determines that the air is dirty, the ventilation fan (fan) 204 It rotates in the direction of exhausting the air to the outside air, and the dirt of the air is discharged outside the room. When the sensor 21 determines that the air contamination is below a predetermined reference value, the ventilation blower (fan) 204 rotates in the direction in which the outside air is supplied into the room, and the outdoor fresh air is taken into the room. To air.

  As the indoor air pollution detection sensor 21 that detects air pollution, a sensor that reacts to dust, pollen, tobacco, etc., a sensor that reacts according to carbon dioxide (CO2) concentration, or a sensor that reacts to oxygen concentration. And so on, depending on the target component to be detected. For example, if you want to react in response to cigarette smoke with air stains, use a sensor for detecting cigarettes, and if you want to react especially when the carbon dioxide concentration increases in air dirt, If a carbon concentration detection sensor is used and it is determined that the air is dirty when the oxygen concentration is lowered, the oxygen concentration detection sensor may be used.

Next, the configuration of the indoor unit according to Embodiment 1 of the present invention will be described based on FIG. 2, FIG. 3, FIG. 4, and FIG.
FIG. 2 is a front view of the indoor unit when the indoor unit is viewed from the front side, and FIG. 3 is a pipe storage state diagram of the back of the indoor unit when the piping hole is on the right side when viewed from the front of the indoor unit with the indoor unit installed on the wall. FIG. 4 is a state of piping storage on the back of the indoor unit when the indoor unit is installed on the wall and the piping hole is on the left side when viewed from the front of the indoor unit, and FIG. 5 is a ventilation provided inside the indoor unit with the decorative panel removed. It is an internal perspective view of the indoor unit which shows the structure of an apparatus and an oxygen enriched air blower outlet.

  In FIG. 5, the ventilation device 201 is disposed between the indoor side heat exchanger 6 on the left side and the indoor unit outer side plate when the indoor unit is viewed from the front, and the installation location of the indoor control device 15 including the driving device, the control board, and the like. (On the right side in FIG. 5) and the indoor side heat exchanger 6 are arranged at positions facing left and right. In addition, in the direction in which the indoor control device 15 is installed (on the right side when the indoor unit is viewed from the front), a pipe serving as an inlet and a pipe serving as an outlet through which the refrigerant flows into the indoor heat exchanger 6 are covered with a heat insulating material. The refrigerant connection pipe (connect pipe) 23 is connected to the indoor heat exchanger 6, and a part of the connection side is also stored inside the indoor unit. The connect pipe 23 extends about 50 cm to the back side of the indoor unit. The two large and small pipes constituting the pipe have an outer diameter of φ9.52 mm through which the gas refrigerant flows and an outer diameter of the pipe through which the liquid refrigerant flows is φ6. Each of the pipes is provided with connection ports (union connection portions) 13b and 14b for connecting extension pipes for guiding the refrigerant to the outdoor side.

  The ventilation duct 202 that is connected to the ventilation device 201 and circulates the ventilation air is from a direction (left side as viewed from the front of the indoor unit) opposite to the direction in which the connect pipe 23 is attached. It extends outside the indoor unit. Further, the oxygen-enriched air duct 103b extends from the side surface (in the present embodiment, the right side as viewed from the front of the indoor unit) where the connect pipe 23 is provided to the rear surface of the indoor unit. As a space for storing the connect pipe 23, the ventilation duct 202 and the oxygen-enriched air duct 103b, a back storage space 25 is provided on the back side of the indoor unit.

Next, the installation method of the air conditioning apparatus shown in this Embodiment is demonstrated. Here, a separate type air conditioner having a wall-mounted indoor unit and a separate outdoor unit will be described as an example, and in particular, the installation work of the ventilation device and the oxygen enrichment device will be mainly described.
First, in order to connect the indoor unit and the outdoor unit of the air conditioner, a pipe wall hole 26 penetrating from the indoor side to the outdoor side is provided in the vicinity of the wall of the room where the indoor unit is installed. The piping wall hole 26 is generally a hole having a diameter of about 65 mm. From the indoor unit side, a refrigerant connection pipe (connect pipe) 23, a wiring 27 composed of a power source and a signal line, a drain hose 24 and a ventilation duct 202 for discharging condensed water from the indoor heat exchanger to the outside, An operation of extending the oxygen-enriched air duct 103b to the outdoor side through the piping wall hole 26 is performed. As shown in the housing state diagram in the piping wall hole 26 in FIG. 8, the connection pipe 23 including the liquid pipe 14 and the gas pipe 13 around the power supply and signal wiring 27, the drain hose 24, and the ventilation duct 202 are substantially triangular. An oxygen-enriched air duct 103b is placed adjacent to the ventilation duct 202 in shape. When the ventilation duct 202 provided on the indoor unit side is short, an extension duct is added to guide the duct to the outdoor side. Similarly, the oxygen-enriched air duct 103b does not reach until the oxygen duct 103b provided on the indoor unit side is led to the outdoor unit side, and if it is short, the work is led to the outdoor unit side using the extension duct. I do. Of course, the connection pipes 23 for circulating the refrigerant are similarly connected to the extension pipes 13 and 14 when the refrigerant pipe length is short. The drain hose 24 has a heat insulating material wound around the outer periphery of the hose and has an outer diameter of Φ25 mm including the heat insulating material.

  Next, after the preparatory work for guiding the connect pipe 23 and the refrigerant extension pipe, the wiring 27 including the power source and signal line, the drain hose 24, the oxygen-enriched air duct 103b, and the ventilation duct 202 to the outdoor side is completed. These pipes, ducts, wires, and hoses are once bundled with vinyl tape or the like to facilitate passage through the pipe wall holes 26. More specifically, for example, when there is a pipe wall hole 26 on the right side when viewed from the front of the indoor unit to be installed, the ventilation duct 202 is stored in the pipe storage space 25 on the back of the indoor unit as shown in FIG. Then, the downstream side of the ventilation duct is arranged on the right side of the indoor unit so that the connection pipe (refrigerant pipe) 23, the wiring 27, the ventilation duct 202, the oxygen-enriched air duct 103b, the drain hose 24 and the front side of the indoor unit. On the back side on the right side, the pipes and ducts are bundled so that they can be easily inserted into the pipe wall holes provided on the wall surface. In this case, since only the ventilation duct 202 is stored in the pipe storage space 25 below the indoor unit rear surface, it is possible to sufficiently store the space cross-sectional area of the pipe storage space.

  On the other hand, when there is a piping wall hole 26 on the left side when viewed from the front of the indoor unit, as shown in FIG. 4, a connecting pipe (refrigerant piping) 23, an oxygen-enriched air duct 103b, a power source and signal wiring 27 are connected to the piping. The work is stored in the storage space 25 so that the end side thereof is on the left side of the indoor unit, and these are combined with the ventilation duct 202, the drain hose 24, and the like and bundled on the left side. At this time, since the duct 103b for oxygen-enriched air has a small diameter, even if it is stored in the pipe storage space 25 adjacent to the connect pipe (refrigerant pipe) 23 and the power supply and signal wiring 27 at the same time, it can be stored sufficiently. .

  As described above, the ventilation duct 202 and the oxygen-enriched air duct 103b are installed opposite to each other on both sides facing the heat exchanger of the indoor unit, and the oxygen-enriched air duct is connected. Since the pipe 23 is provided on the same one side, the space of the pipe storage space 25 provided on the back surface of the indoor unit can be used effectively, so that this space of the wall-mounted indoor unit can be minimized. Is possible.

  In addition, since the outer diameter of the oxygen-enriched air duct 103b is set to be ½ or less of the outer diameter of the ventilation duct 202, it is possible to bundle ventilation ducts and pipes as shown in FIG. It becomes easy to fit in the space (shaded area in the figure). On the other hand, when the outer diameter of the oxygen-enriched air duct is ½ or more of the outer diameter of the ventilation duct, the oxygen-enriched air duct 103b is pressed and crushed as shown in FIG. It becomes possible to prevent such a situation as much as possible, such as facilitating and deterioration of air circulation.

  In the present embodiment, the indoor unit is provided with a ventilation device 201 having a ventilation fan. As shown in the connection schematic diagram of the indoor unit and the outdoor unit in FIG. 9, a ventilation duct 202 connected to the ventilation device. However, since the indoor air can be ventilated only by a length that can be extended from the indoor unit to the outdoor side through the piping wall hole 206, the ventilation duct can be minimized and the ventilation device can be downsized. Furthermore, as shown in the layout diagram of the main parts of the outdoor unit in FIG. 10, an oxygen-enriched membrane built-in unit 101 is disposed in the air passage through which the outdoor air passing through the outdoor heat exchanger is circulated by the outdoor fan 11 inside the outdoor unit. The oxygen enrichment device is provided in the outdoor unit in a configuration in which the vacuum pump 102 is disposed on the machine room side where the compressor 1, the outdoor control device 16 and the like are provided, and the oxygen enriched air duct 103b is connected to the indoor unit. Since oxygen-enriched air is introduced, the ventilation function can be achieved without increasing the size of the indoor unit, which has installation restrictions in the room, and without substantially reducing the cooling and heating performance that is the original function of the air conditioner. And an oxygen enrichment function can be achieved.

Next, the operation of the oxygen enricher will be described.
When the user operates the oxygen enrichment function button provided on the remote controller 22 of FIG. 1 and the command is transmitted, the indoor control device 15 operates the indoor fan 9 and the oxygen enrichment device on the outdoor unit side. Send drive signal. Based on the transmitted signal, the outdoor control device 16 drives the outdoor fan 11 that passes outside air through the outdoor heat exchanger 8 to exchange heat, and at the same time, is connected to the oxygen-enriched membrane built-in unit 101 by pipe connection. The vacuum pump 102 is driven. If the cooling, dehumidification or heating operation is already in operation before the signal from the oxygen enrichment function button is transmitted, the indoor and outdoor fans have already started operation. When the control signal is transmitted by the enrichment function button, only the vacuum pump 102 is driven.

  When the outdoor fan 11 is driven, as shown in the block diagram of the oxygen-enriched film in FIG. 12 and the block diagram of the unit in which the oxygen-enriched film is embedded in FIG. The outside air is guided to the primary space of the oxygen-enriched membrane provided, and the oxygen pumping membrane creates a pressure difference with the primary side by the vacuum pump 102 in the secondary space of the oxygen-enriched membrane that easily transmits oxygen. Air with increased oxygen concentration is produced from the outside air that has passed through the enriched membrane, and is released into the room through the oxygen-enriched air outlet 105 provided in the indoor unit via the oxygen-enriched air ducts 103a, 104, and 103b. Increase the oxygen concentration in the air-conditioned room. At that time, since the indoor fan 9 is driven on the indoor unit side, air having a high oxygen concentration is diffused into the room from the indoor outlet through the air cooled or warmed by the air conditioner. On the other hand, the outside air introduced into the primary side space of the oxygen-enriched film in the oxygen-enriched film built-in unit 101 and remaining without passing through the oxygen-enriched film leads to a large amount of oxygen to the secondary side of the oxygen-enriched film. As a result, air with a high nitrogen concentration is created, and this air is directly released to the outside air.

  Furthermore, since the outside air that has passed through the oxygen-enriched membrane transmits not only high-concentration oxygen air but also moisture contained in the outside air, condensation occurs inside the oxygen-enriched air duct due to the outside air state. . In order to dry the generated condensation regularly, the outside air introduction valve 106 provided in the middle of the oxygen-enriched air duct connecting the oxygen-enriched membrane built-in unit 101 and the vacuum pump 102 is periodically switched. (Open the valve), and dry air from there is sent from the outdoor unit side to the indoor unit side connected to the oxygen-enriched air duct to dry the inside.

  As described above, when an oxygen enrichment drive signal is transmitted by the user operating the operation button of the remote controller 22, high-concentration oxygen air is introduced into the room from the outside, and there is a shortage in a room closed for air conditioning. It is possible to compensate for the oxygen concentration, which has the effect of helping the residents relax and recover from fatigue.

Next, the operation of the ventilation function will be described.
When a signal from the remote control 22 is sent from the air purification / ventilation button, the indoor control device 15 drives the ventilation motor 205 of the ventilation device 201 and the ventilation fan 204 is activated. Furthermore, when the dirt sensor 21 provided in the indoor unit for detecting air dirt detects the degree of air dirt in the room and determines that it is dirty, the ventilation fan 204 exhausts the room air to the outside. The air in the room is sucked from a ventilation supply / exhaust port 208 provided on the suction side of the indoor unit, and is discharged to the outside air through the ventilation duct 202. As shown in the schematic diagram of the arrangement of the air purifier mounted on the indoor unit in FIG. 11, in the indoor unit in which the air purifier 28 is disposed on the indoor air suction upstream side of the indoor heat exchanger, The ventilation button is also linked to the air cleaning function button, and when it is determined that the air dirt sensor 21 is dirty, the air cleaning device 28 is also activated. That is, when it is determined that the dirt sensor 21 is dirty, dust, pollen, cigarettes, and the like, which are dirt in the air in the room, are removed by the air purifier 28 and are difficult to remove by the air purifier 28. Hazardous substances such as formaldehyde, NOx, SOx, carbon dioxide, carbon monoxide, and the like can be released to the outside by a ventilation function to remove dirt from the air. In addition, as an air cleaning function, there are an electric dust collection method and an electrostatic filter method, either of which may be used. When the air is cleaned by the ventilation and air cleaning operations and the dirt sensor 21 determines that the air is not dirty, the air cleaning device 28 is automatically deactivated. Then, the rotation is reversed in the direction of supplying air from the outside air to the indoor side, and fresh air of the outside air is introduced.

  As described above, in addition to the ventilator 201, the air purifier 28 is also equipped with an electric dust collection function as a means for removing air dirt, and the ventilator removes only substances that cannot be removed by the air purifying function. Therefore, there is an advantage that the ventilation fan 204 and the ventilation duct 202 can be reduced in size, and therefore, it is possible to further implement an oxygen function. Furthermore, the dirt sensor 21 detects the dirty state of the indoor air and performs an appropriate operation according to the air quality state, thereby preventing wasteful electric power and producing air with higher cleanliness. Become.

  In the present embodiment, the ventilator 201 has been described with respect to the ventilator having both a function of exhausting indoor air to the outside and a function of supplying outdoor air to the room, but only one of the functions is provided. It may be a ventilation device. However, if the ventilation function is exhaust only, after removing the dirt of the air, only the oxygen-enriched air is introduced into the room, so the effect of introducing fresh air is reduced, but the other functions are Can be satisfied. In addition, when the ventilation device 201 is only air supply, the performance of removing harmful substances such as carbon dioxide, NOx, SOx and the like that are difficult to remove by the air cleaning function is lowered, but other functions can be satisfied.

  In this embodiment, the air conditioner equipped with the indoor air dirt sensor 21 that detects air dirt is described. However, the dirt sensor need not be provided. However, in this case, by providing a ventilation operation button and an oxygen enrichment operation button on the operation button of the remote controller, the same function as this embodiment is obtained, but the user judges from the dirty state of the room air as needed. Therefore, the operability is deteriorated because the remote controller 22 needs to be operated again.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described.
FIG. 14 is a configuration diagram when the ventilator 201 is installed on the outdoor unit side, and FIG. 15 is an external view when the ventilator 201 is provided by joining to the same side as the refrigerant pipe connection valve arrangement side of the outdoor unit outer shell. FIG. In this case, since the ventilator 201 is provided on the outdoor unit side, it is not necessary to store the ventilator 201 in an indoor unit with severe dimensional constraints, so that the cooling and heating performance that is the original function of the air conditioner is not impaired. It is possible to satisfy the ventilation function. However, when the ventilation unit 201 is provided on the indoor unit side, the ventilation duct 202 for circulating the ventilation air may be installed from the indoor unit to the outside air through the indoor wall, but the outdoor unit has the ventilation unit. If this is the case, it is necessary to connect the ventilation duct 202 from the outdoor unit to the indoor unit for a longer period of time. However, when the ventilator is provided on the outdoor unit side, the unit size is less restricted than that of the indoor unit. Therefore, the ventilator 201 can be increased in size and the ventilation performance can be improved.
Since other configurations, installation work, and operability are the same as those in the first embodiment, description thereof is omitted.

Embodiment 3 FIG.
Next, Embodiment 3 of the present invention will be described with reference to FIG. Here, in the air conditioner provided with the oxygen enricher and the ventilator, the suction function of the vacuum pump 102 used as the oxygen enricher is used as the ventilator for the ventilator for releasing the room air to the outside air. Shows what was there.
In addition to the oxygen-enriched air outlet 105 and oxygen-enriched air ducts 103b and 104, the air conditioner shown in FIG. 16 has an indoor air inlet 109 and an indoor air exhaust duct for exhausting indoor air to the outside. 110 is provided. In addition, in order to exhaust the room air by the vacuum pump 102, an indoor air exhaust valve A107 and an indoor air exhaust valve B108 are provided. The rest of the configuration is the same as that of the first embodiment, and a description thereof will be omitted.

Next, an operation for exhausting room air using the vacuum pump 102 will be described. When performing the oxygen enrichment operation (operation for producing oxygen-enriched air and supplying it indoors), the oxygen enriched film built-in unit 101 and the vacuum pump 102 are connected to perform the same operation as in the first embodiment. The indoor exhaust valve A107 for connecting the indoor air exhaust duct 110 in the middle of the duct to be closed is closed, and the oxygen enriched air duct (outdoor unit) connected from the vacuum pump 102 to the oxygen enriched air outlet 105 of the indoor unit Side) The indoor exhaust valve B108 provided in the middle of 103b is opened, and the indoor air exhaust switching valve 115 provided between the vacuum pump 102 and the indoor exhaust valve B108 is closed. The outdoor control device 16 outputs and issues an operation command to the vacuum pump 102. As a result, the oxygen-enriched membrane built-in unit 101 extracts air having a high oxygen concentration and introduces it from the oxygen-enriched air ducts 103a, 104, and 103b to the blowout port 105, which is a discharge port for oxygen-enriched air. High oxygen concentration is released indoors.
When the condensed water adhering to the oxygen-enriched air ducts 103 a, 104, and 103 b is dried, the indoor air exhaust valve A 107 is opened and the room air is introduced from the indoor air inlet 109 to perform the drying operation. I do. Since this operation is the same as that described in the first embodiment, detailed description thereof is omitted.

Next, an operation when a ventilation operation command is transmitted from the indoor control device 15 provided in the indoor unit to the outdoor control device 16 will be described.
In this case, the indoor air exhaust valve A107 and the indoor air exhaust switching valve 115 are opened, and the indoor air exhaust valve B108 is closed. Thereby, the vacuum pump 102 sucks indoor air from the indoor air inlet 109 provided on the indoor unit side, and discharges the indoor air sucked from the outside air introduction valve 106 for drying inside the duct through the vacuum pump 102 to the outside. be able to. Since other operations are the same as those in the first embodiment, description thereof is omitted.

  As described above, the room air exhaust valve and the duct are arranged, and the room air can be sucked and discharged to the outside by using the vacuum pump 102 for producing oxygen-enriched air. This eliminates the need for a ventilator and reduces the cost. Moreover, since the suction force is strong by using this vacuum pump, an effect that the diameter of the ventilation duct can be reduced can be obtained.

Still another embodiment according to the third embodiment will be described with reference to FIG.
FIG. 17 is a block diagram of still another air conditioner. Reference numeral 113 denotes an oxygen-enriched air duct 103b connected from a vacuum pump 102 provided on the outdoor unit side to an oxygen-enriched air outlet 105 provided in the indoor unit. The indoor air exhaust valves C and 114 provided on the (outdoor unit side) connect the duct on the air outlet 105 side with respect to the indoor air exhaust valve C, and the duct between the oxygen enriched membrane built-in unit 101 and the vacuum pump 102. Indoor air exhaust valves D and 115 connected to the bypass duct are switching valves for indoor air exhaust ports provided in the duct between the vacuum pump 102 and the indoor air exhaust valve C113. In addition, the same code | symbol is attached | subjected to FIG. 1 and an equivalent part, and description is abbreviate | omitted.

  In this configuration, when the oxygen enrichment operation is performed, the indoor air exhaust valve C113 is opened, the indoor air exhaust valve B114 is closed, and the indoor air exhaust switching valve 115 is closed. This is the same as the operation for producing oxygen-enriched air and supplying it indoors as shown in the first embodiment. On the other hand, when performing the exhaust operation, the indoor air exhaust valve C113 is closed and the indoor air exhaust port switching valve 115 and the indoor air exhaust valve D114 are opened. In this case, indoor air is sucked from the oxygen-enriched air outlet 105, and the indoor air is led in the order of the oxygen-enriched air duct 103b (indoor unit side), 104, and 103a (outdoor unit side). The indoor air is discharged to the outside from the switching valve 115 at the exhaust port.

  By performing the above operation, the indoor air can be led out to the outside of the room using the vacuum pump 102 for producing oxygen-enriched air, and a dedicated ventilation device is not required, and oxygen-enriched air is eliminated. Since the ducts 103b, 104, 103a and the air outlet 105 can be used as they are for both the supply of oxygen-enriched air and the exhaust ventilation of room air, these components can also be shared. In addition, the cost can be further reduced, and the effect of improving and improving the installation can be obtained.

  Further, when drying the condensed water adhering in the oxygen-enriched air duct during the oxygen-enriched operation, if the same operation as the ventilation operation for exhausting the indoor air described above is performed periodically at predetermined intervals, By introducing the indoor air into the oxygen-enriched air duct, the condensed water can be dried. Since other operations are the same as those in the first embodiment, description thereof is omitted.

It is a block diagram of the air conditioning apparatus which concerns on Embodiment 1 of this invention. It is a front view of the indoor unit of the air conditioning apparatus which concerns on Embodiment 1 of this invention. It is a piping accommodation state figure (when a piping hole is on the right side seeing from the unit front) seen from the indoor unit back of the air harmony device concerning Embodiment 1 of the present invention. It is a piping accommodation state figure (when a piping hole is on the left side seeing from a unit front) seen from the indoor unit back of the air harmony device concerning Embodiment 1 of the present invention. It is an internal perspective view in the state where the decorative panel of the indoor unit of the air-conditioning apparatus according to Embodiment 1 of the present invention is removed. It is an internal block diagram of the ventilation apparatus which concerns on Embodiment 1 of this invention and is arrange | positioned in an air conditioning apparatus. FIG. 6 is a layout diagram in the case where (a) the outer diameter of the oxygen duct is equal to or less than 1/2 of the outer diameter of the ventilation duct in the arrangement of the oxygen-enriched air duct and the ventilation duct according to the first embodiment of the present invention. And (b) is an arrangement diagram when the outer diameter of the oxygen duct is 1/2 or more of the outer diameter of the ventilation duct. It is a storage state figure of each piping, wiring, a duct, etc. which are related to Embodiment 1 of this invention and fit in the wall hole for piping. It is a connection schematic diagram of an indoor unit and an outdoor unit according to the first embodiment of the present invention. FIG. 3 is a layout diagram of main components of an outdoor unit according to the first embodiment of the present invention. It is an installation schematic diagram of the air purifying apparatus which concerns on Embodiment 1 of this invention and was mounted in the indoor unit. 1 is a configuration diagram of an oxygen-enriched film mounted on an air conditioner according to Embodiment 1 of the present invention. 1 is a configuration diagram of an oxygen-enriched membrane built-in unit that is mounted on an air conditioner according to Embodiment 1 of the present invention. It is a block diagram of the air conditioning apparatus which concerns on Embodiment 2 of this invention. It is an external view of the outdoor unit of the air conditioning apparatus which concerns on Embodiment 2 of this invention. It is a block diagram of the air conditioning apparatus which concerns on Embodiment 3 of this invention. It is a block diagram of another air conditioning apparatus which concerns on Embodiment 3 of this invention.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 Compressor, 2 Discharge piping, 3 Intake piping, 4 Accumulator, 5 Four-way valve, 6 Indoor side heat exchanger, 7 Pressure reducing device (electronic control type expansion valve), 8 Outdoor heat exchanger, 9 Indoor fan, 10 Indoor Fan motor, 11 outdoor fan, 12 outdoor fan motor, 13 gas side extension piping, 13a connection port of gas side extension piping (outdoor unit side), 13b connection port of gas side extension piping (indoor unit side), 14 liquid side extension Pipe, 14a Liquid side extension pipe connection port (outdoor unit side), 14b Liquid side extension pipe connection port (indoor unit side), 15 Indoor control device, 15a Ventilation fan drive unit, 15b Indoor fan drive unit, 15c Remote control light reception 16 outdoor controller, 16a compressor drive unit, 16b outdoor fan drive unit, 16c vacuum pump drive unit, 17 compressor temperature sensor -Mister, 18 Indoor unit piping temperature thermistor, 19 Room temperature detection thermistor, 20 Outdoor unit piping temperature thermistor, 21 Indoor air contamination detection sensor, 22 Remote control, 23 Connect pipe, 24 Drain hose, 25 Piping storage space, 26 Piping wall hole, 27 Power supply and signal wiring, 28 Air purifier, 101 Oxygen-enriched membrane, 102 Vacuum pump, 103a Oxygen-enriched air duct (outdoor unit side), 103b Oxygen-enriched air duct (indoor unit side), 104 Oxygen rich 104a, 104b Oxygen-enriched air duct connection joint (outdoor unit side, indoor unit side), 105 Oxygen-enriched air outlet, 106 Outside air introduction valve for drying in the duct, 107 For indoor air exhaust Valve A, 108 Indoor air exhaust valve B, 109 Indoor air suction Inlet, 110 Indoor air exhaust duct, 111 Exhaust extension duct, 112a, 112b Exhaust duct connection joint, 113 Indoor air exhaust valve C, 114 Indoor air exhaust valve D, 115 Indoor air exhaust switching valve, 201 Ventilation Equipment, 202 ventilation duct, 204 ventilation fan, 205 ventilation motor, 206 ventilation casing, 207 ventilation motor case, 208 ventilation inlet / outlet.

Claims (6)

The indoor unit includes at least an indoor fan, an indoor heat exchanger, and an indoor control device. The outdoor unit includes a compressor, an outdoor heat exchanger and an outdoor fan, a decompression device, and an outdoor unit. In an air conditioner having a control device, an oxygen enrichment device that enriches outside air with oxygen and supplies oxygen-enriched air into the room, and a ventilator connected to a ventilation duct that connects the room and the outside air The oxygen enrichment device is installed in an outdoor unit and the outside diameter of the oxygen enrichment duct that introduces oxygen-enriched air into the room is set to 1/2 or less of the outside diameter of the ventilation duct, In the wall hole for piping for connecting an indoor unit and an outdoor unit, the refrigerant | coolant connection piping to the said indoor side heat exchanger, the drain hose which discharge | releases the dew condensation water from the said indoor side heat exchanger to the outdoor, and the said ventilation duct Are arranged in a substantially triangular shape and the oxygen-rich An air conditioning apparatus, characterized in that the use duct disposed adjacent to the ventilation duct. Ventilation port on the side facing the indoor side heat exchanger with respect to the side surface provided with the connecting pipe extending to the back surface of the indoor unit connected to the indoor side heat exchanger and the duct for oxygen enrichment The air conditioning apparatus according to claim 1, wherein the ventilation duct is arranged so that the The air conditioner according to claim 1 or 2 , wherein a ventilation fan of the ventilation device is arranged in an outdoor unit. The air conditioner according to any one of claims 1 to 3 , wherein a vacuum pump of the oxygen enricher is used as a ventilation means for ventilating the indoor air. The air conditioner according to any one of claims 1 to 4 , wherein an air purifier that collects air dirt is mounted on the indoor unit. The air conditioner according to any one of claims 1 to 5 , wherein air quality detection means for detecting dirt in indoor air is mounted on the indoor unit.

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