JP2005164162A - Air-conditioner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To solve the problems that air supply operation allows the introduction of outside air into a room but gives unpleasant feels to dwellers when the outside air is contaminated by various materials, and if the outside air is introduced into the room via a filter to solve this problem, an air cleaning filter provided in an air supply/exhaust unit brings about the air supply/exhaust unit to be wider and so its heat exchanger should be smaller resulting in a reduction in the capability of conditioning temperature/humidity as the originally basic purpose of an air-conditioner and the heat exchanger, and if not changed in size, it brings about an indoor unit to be larger in shape. <P>SOLUTION: An air supply filter 21 is provided through which outside air passes during air supplying operation. The rotating shaft of a sub-fan 19 is arranged in parallel to the rotating shaft of a main fan 9 so that the air suction face of the sub-fan 19 is not at a right angle to the air passage face of the air supply filter 21. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an air conditioner capable of ventilation operation.

  In recent years, the degree of sealing of the residential section of a house has increased, and it has been pointed out that harmful substances contained in building materials have an effect on the human body. There is also a problem that the carbon dioxide concentration in the living space increases due to the high degree of sealing. It has been a challenge to solve these problems as an air conditioner that harmonizes indoor air.

  As this type of air conditioner, there is one described in JP 2000-274727 A (Patent Document 1). This Patent Document 1 incorporates a fan that can be switched between forward rotation and reverse rotation in one ventilation air passage, and by switching the rotation direction of the fan, an exhaust function for exhausting indoor air to the outside, A separate air conditioner including a unit having an air supply function for taking outdoor air into the room is disclosed.

JP 2000-274727 A

  The air supply / exhaust unit described in Patent Document 1 is a sub-fan (the main fan is a cross-flow fan that ventilates the heat exchanger of the air conditioner indoor unit, and the air supply / exhaust fan is referred to as a sub fan). The exhaust operation and the air supply operation are performed by switching the air flow direction from the normal rotation to the reverse rotation.

  When the air supply operation is performed, outdoor air is introduced into the room. However, when the outdoor air is contaminated with various substances, it is uncomfortable for the consumers there. In order to solve this problem, it is conceivable to introduce outside air into the room through a filter. The air conditioner disclosed in Patent Document 1 attempts to solve the problem by allowing air to flow through an air cleaning filter provided in the duct during both forward and reverse rotations of the subfan.

  However, if the ventilation surface of the air purifying filter is arranged in parallel with the drive shaft of the sub fan as in Patent Document 1, and the air purifying filter has an appropriate performance, the area of the air purifying filter is reduced. Must be bigger. If it does in this way, the width | variety of an air supply / exhaust unit will become large, and the heat exchanger must be made small correspondingly, and the temperature-humidity harmony capability which is the fundamental objective as an original air conditioner will fall. When the size of the heat exchanger is not changed, there is a problem that the shape of the indoor unit becomes large.

  Also, in the case of the exhaust operation for exhausting the indoor air to the outside, the air exhausted to the outside passes through the air purifying filter, so that there is a problem that the ventilation resistance at the time of exhausting increases and the amount of air to be exhausted decreases. .

  Moreover, in the air conditioner of patent document 1, consideration was not given to the maintainability in the filter and duct arrange | positioned at a subfan unit.

  Further, in the air conditioner of Patent Document 1, no consideration is given to when the sub fan is stopped.

  Further, in the air conditioner of Patent Document 1, the sub fan unit has only an air supply operation mode and an exhaust operation mode, and other operations are not considered.

  Further, in the air conditioner of Patent Document 1, no consideration is given to the invasion of insects or the like into the air supply / exhaust duct leading to the outside.

  A first object of the present invention is to provide an air conditioner including a sub fan unit having an air supply function and an exhaust function, the air conditioner including a thin sub fan unit even with an air purifying filter. It is in.

  A second object of the present invention is to provide an air conditioner having a sub-fan unit having an air supply function and an exhaust function, with reduced ventilation resistance during the exhaust operation.

  It is a third object of the present invention to provide an air conditioner having improved filter maintainability in an air conditioner including a sub fan unit having an air supply function and an exhaust function.

  The fourth object of the present invention is to provide an air conditioner with improved sub-fan unit cleanability.

  A fifth object of the present invention is to provide an air conditioner that includes a sub-fan unit having an air supply function and an exhaust function, and that takes into account other operations.

  A sixth object of the present invention is to provide an air conditioner including a sub-fan unit having an air supply function and an exhaust function, taking into account the entry of foreign matter into an air supply / exhaust duct leading to the outside. .

    A seventh object of the present invention is to provide an air conditioner that includes a sub fan unit having an air supply function and an exhaust function, taking into consideration when the sub fan is stopped.

  The first object is to provide an air inlet and an air outlet formed in a horizontally long indoor unit, a main fan installed between the air inlet and the air outlet, and forming an air air passage, and its main A heat exchanger that operates a fan to exchange heat with indoor air sucked from the air inlet, a filter that is installed on the upstream side of the air flow of the heat exchanger, and an indoor unit that is provided in the indoor unit A casing that connects the indoor opening and the outdoor opening that opens to the outside to form an air air passage inside, and an air supply that is provided on the air air passage in the casing and takes outdoor air into the room by rotating In an air conditioner comprising a sub-fan that performs operation or exhaust operation for exhausting indoor air to the outside and a supply / exhaust unit having a sub-fan motor, outdoor air at least during the air-supply operation An air supply filter that passes therethrough is disposed such that the rotation axis of the sub fan and the rotation axis of the main fan are substantially parallel; an air suction surface of the sub fan and an air passage surface of the supply filter; This is achieved by arranging the angles so that they are not perpendicular.

  The second object is to provide an air inlet and an air outlet formed in the horizontally long indoor unit, a main fan installed between the air inlet and the air outlet, and forming an air air passage, A heat exchanger that operates a fan to exchange heat with indoor air sucked from the air inlet, a filter that is installed on the upstream side of the air flow of the heat exchanger, and an indoor unit that is provided in the indoor unit A casing that connects the indoor opening and the outdoor opening that opens to the outside to form an air air passage inside, and an air supply that is provided on the air air passage in the casing and takes outdoor air into the room by rotating In an air conditioner comprising a sub-fan that performs operation or exhaust operation for exhausting indoor air to the outside and a supply / exhaust unit having a sub-fan motor, outdoor air at least during the air-supply operation An air supply filter that passes therethrough is provided, outdoor air is taken into the room through the air supply filter during the air supply operation, and room air is exhausted outside the air supply filter without passing through the air supply filter during the exhaust operation. To achieve this.

  The third object is to provide an air inlet and an air outlet formed in a horizontally long indoor unit, a main fan that is installed between the air inlet and the air outlet, and forms an air air passage, and its main A heat exchanger that operates a fan to exchange heat with indoor air sucked from the air inlet, a filter that is installed on the upstream side of the air flow of the heat exchanger, and an indoor unit that is provided in the indoor unit A casing that connects the indoor opening and the outdoor opening that opens to the outside to form an air air passage inside, and an air supply that is provided on the air air passage in the casing and takes outdoor air into the room by rotating In an air conditioner including a sub-fan that performs operation or exhaust operation for exhausting indoor air to the outside and a supply / exhaust unit having a sub-fan motor, outdoor air passes during the air-supply operation. A pre-filter is provided in the air filter on the upstream side of the air filter during the air supply operation, and the outdoor air is passed through the prefilter and the air supply filter during the air supply operation. This is achieved by exhausting the indoor air to the outside through the pre-filter without passing through the air supply filter during the exhaust operation.

  The third object is to provide an air inlet and an air outlet formed in a horizontally long indoor unit, a main fan that is installed between the air inlet and the air outlet, and forms an air air passage, and its main A heat exchanger for operating the fan and exchanging heat from the indoor air sucked from the air suction port, a heat exchanger pre-filter installed on the upstream side of the air flow of the heat exchanger, and provided in the indoor unit A casing that connects an indoor opening that opens indoors and an outdoor opening that opens outdoor to form an air air passage inside, and is provided on the air air passage in the casing and rotates to allow outdoor air to flow indoors An air conditioner having a sub-fan and a sub-fan motor having a sub-fan and a sub-fan motor for performing an air-supply operation to be taken in or an air-exhaust operation for exhausting indoor air to the outside. The indoor air inlet is accomplished by providing a filter in a part of the pre-filter for the heat exchange gas.

  The fourth object is to provide an air inlet and an air outlet formed in a horizontally long indoor unit, a main fan that is installed between the air inlet and the air outlet, and forms an air air passage, and its main A heat exchanger for operating the fan and exchanging heat from the indoor air sucked from the air suction port, a heat exchanger pre-filter installed on the upstream side of the air flow of the heat exchanger, and provided in the indoor unit A casing that connects an indoor opening that opens indoors and an outdoor opening that opens outdoor to form an air air passage inside, and is provided on the air air passage in the casing and rotates to allow outdoor air to flow indoors An air conditioner having a sub-fan and a sub-fan motor having a sub-fan and a sub-fan motor for performing an air-supply operation to be taken in or an air-exhaust operation for exhausting indoor air to the outside. An air supply filter through which air passes and a storage portion for storing the air supply filter are provided, and the air supply filter can be attached and detached from the front of the indoor unit, and the outdoor opening is provided in the indoor unit. When viewed from the front of the unit, this is achieved by forming a part or all of the storage unit in a vertical projection plane.

  The fifth object is to provide an air outlet formed below the horizontally long indoor unit, an air inlet formed above the air outlet, and between the air inlet and the air outlet. A main exchanger, a heat exchanger that operates the main fan and heat-exchanges the indoor air sucked from the air suction port, and a heat exchanger pre-filter installed on the upstream side of the air flow of the heat exchanger, A casing that is provided in the indoor unit, connects an indoor opening that opens to the inside of the room and an outdoor opening that opens to the outside of the room, and forms an air air passage therein, and is provided on the air air passage in the casing. An air conditioner including a sub-fan and a sub-fan motor having a sub-fan and a sub-fan motor for performing an air-supply operation for taking outdoor air into the room by rotating or an exhaust operation for exhausting the indoor air to the outside. The provided two indoor openings, one for the intake air is achieved by the other as a supply air.

  In particular, the fifth object according to claim 6 is the sub-air blowout port formed between the air blowout port formed below the indoor unit and the air suction port, and the air blowout. This is achieved by providing a duct connecting the indoor opening.

  The sixth object is to provide an air outlet formed below the horizontally long indoor unit, an air inlet formed above the air outlet, and between the air inlet and the air outlet. A main exchanger, a heat exchanger that operates the main fan and heat-exchanges the indoor air sucked from the air suction port, and a heat exchanger pre-filter installed on the upstream side of the air flow of the heat exchanger, A casing that is provided in the indoor unit, connects an indoor opening that opens to the inside of the room and an outdoor opening that opens to the outside of the room, and forms an air air passage therein, and is provided on the air air passage in the casing. An air conditioner including a sub-fan and a sub-fan motor having a sub-fan and a sub-fan motor for performing an air-supply operation for taking outdoor air into the room by rotating or an exhaust operation for exhausting the indoor air to the outside. A pre-filter through which the outside air introduced during the air supply operation passes before reaching the sub fan motor, an outdoor duct connected to the outdoor opening, and the tip of the outdoor duct being installed outdoors, and the outdoor duct This is achieved by providing a third filter that is provided at the opening at the tip of the filter and has a coarser mesh than the prefilter.

  In particular, the sixth object is achieved by providing a cover that covers the periphery of the third filter provided at the tip of the outdoor duct, and making the shape of the tip of the cover irregular.

  The seventh object is to provide an air outlet formed below the horizontally long indoor unit, an air inlet formed above the air outlet, and between the air inlet and the air outlet. A main exchanger, a heat exchanger that operates the main fan and heat-exchanges the indoor air sucked from the air suction port, and a heat exchanger pre-filter installed on the upstream side of the air flow of the heat exchanger, A casing that is provided in the indoor unit, connects an indoor opening that opens to the inside of the room and an outdoor opening that opens to the outside of the room, and forms an air air passage therein, and is provided on the air air passage in the casing. An air conditioner including a sub-fan and a sub-fan motor having a sub-fan and a sub-fan motor for performing an air-supply operation for taking outdoor air into the room by rotating or an exhaust operation for exhausting the indoor air to the outside. It is achieved by providing a function of blocking between the sub fan stop during the chamber opening and the outdoor opening.

  As described above, according to the present invention, an air conditioner including a sub fan unit having an air supply function and an exhaust function can be provided. .

  ADVANTAGE OF THE INVENTION According to this invention, in the air conditioner provided with the sub fan unit which has an air supply function and an exhaust function, the air conditioner which reduced the ventilation resistance at the time of exhaust operation can be provided.

  ADVANTAGE OF THE INVENTION According to this invention, in the air conditioner provided with the sub fan unit which has an air supply function and an exhaust function, the air conditioner which improved the maintainability of the filter can be provided.

  ADVANTAGE OF THE INVENTION According to this invention, the air conditioner which improved the cleaning property of the sub fan unit can be provided.

  ADVANTAGE OF THE INVENTION According to this invention, in the air conditioner provided with the sub fan unit which has an air supply function and an exhaust function, the air conditioner considered also about other driving | operations can be provided.

  ADVANTAGE OF THE INVENTION According to this invention, in the air conditioner provided with the sub fan unit which has an air supply function and an exhaust function, the air conditioner which considered the foreign material approach of the air supply / exhaust duct etc. which lead to the outdoor can be provided.

  ADVANTAGE OF THE INVENTION According to this invention, in the air conditioner provided with the sub fan unit which has an air supply function and an exhaust function, the air conditioner which considered the sub fan stop time can be provided.

  Embodiments of the air conditioner of the present invention will be described below with reference to the drawings.

  The whole structure of an air conditioner is demonstrated using FIGS. 1 is an external view of an indoor unit of an air conditioner according to the present invention, FIG. 2 is an external view of the indoor unit of FIG. 1 with a decorative cover removed, FIG. 3 is a cross-sectional view taken along the line AA in FIG. It is BB sectional drawing of FIG.

  The indoor unit 1 includes a unit box 2, a decorative cover 3, and a front cover 4. The indoor unit 1 is provided with an air inlet 5 for sucking indoor air whose temperature and humidity are harmonized and an air outlet 6 which blows indoor air whose temperature and humidity are harmonized. The air outlet 6 is provided horizontally in the lower part of the indoor unit 1, and constitutes a main outlet with respect to the sub outlet 13. At the air outlet 6, an up / down wind direction plate 7 is rotatably installed. This up-and-down air direction board 7 is for changing the direction of the blown-out air, and is located so that it may blow off in the horizontal direction during cooling, and it may be blown down during heating.

  The unit box 2 includes an air filter 8, a main fan 9, a heat exchanger 10, and a dew tray 11. The air filter 8 is disposed so as to cover the suction side of the heat exchanger 10 and removes dust contained in the sucked indoor air. The main fan 9 is composed of a horizontally long cross-flow fan, and is arranged at the center in the indoor unit 1 so as to suck indoor air from the air inlet 5 and blow it out from the air outlet 6. The heat exchanger 10 is disposed on the suction side of the main fan 9 and has a substantially inverted V shape. The dew receiver 11 is disposed below the lower ends of the front and rear sides of the heat exchanger 10 and is provided for receiving condensed water generated in the heat exchanger 10 during cooling operation or dehumidifying operation and discharging it outside the room. As a result, a main passage through which indoor air to be air-conditioned flows is formed. That is, by operating the main fan 9, room air is sucked from the air suction port 5, heat exchanged by the heat exchanger 10 through the air filter 8, and then blown into the room from the air outlet 6. .

  The sub fan unit 15 is disposed on one side of the indoor unit 1. Specifically, the sub fan unit 15 is incorporated on the side opposite to the main fan motor 14 for the main fan 9.

  The sub fan unit 15 has a sub suction port 16 for sucking room air at the front. The sub suction port 16 is located behind the air filter 8 shared with the heat exchanger 10, and indoor air sucked from the air suction port 5 is sucked through the air filter 8. That is, the number of components can be reduced by sharing the air intake port 5 for taking in indoor air into the heat exchanger 10 without providing a dedicated air intake port in the indoor unit 1 for the sub fan unit 15.

  A blower duct 12 is communicated with the sub fan unit 15, and a sub blower outlet 13 is provided in the blower duct 12. Specifically, the air duct 12 is positioned above the air outlet 6 and in front of the dew receiver 11, and extends laterally to the central portion in the indoor unit 1. A sub air outlet 13 is provided at the tip of the air duct 12, in other words, at the upper center of the air air outlet 6. Thereby, the air blown into the room from the sub fan unit 15 is blown from the indoor blowing unit 17 to the blower duct 12 and blown into the room from the sub blower outlet 13 located at the tip of the blower duct 12.

  The sub fan unit 15 has an air supply / exhaust port 18 at the rear for exhausting indoor air to the outside and taking in fresh outdoor air. An outdoor duct 22 (FIG. 16) is connected to the air supply / exhaust port 18, and this outdoor duct 22 is connected to the indoor unit 1 and the outdoor unit (not shown) through a piping hole in the house together with a refrigerant pipe. The outdoor duct 22 is drawn out to the outside, the tip of the outdoor duct 22 is opened to the outside air, and the refrigerant pipe is connected to the outdoor unit.

  In the present embodiment, the main fan motor 14 is arranged on the right side of the indoor unit 1 and the sub fan unit 15 is arranged on the left side. However, the same effect can be obtained even if they are arranged in reverse. Moreover, although the right-and-left object property which looked at the indoor unit 1 from the front collapses, you may arrange | position the sub fan unit 15 in the side by which the main fan motor 14 is arrange | positioned.

  Next, the configuration and function of the sub fan unit 15 will be described with reference to FIGS. 5 is an external view of the sub fan unit, FIG. 6 is a perspective view in which the right side plate of the sub fan unit in FIG. 5 is omitted, and FIG. 7 is a perspective view in which a part of the left side plate of the sub fan unit in FIG. .

  The sub fan unit 15 has an air blower portion in the upper half of the internal space, and various filters are arranged in the lower half portion. The width of the indoor unit 1 is reduced by arranging them in the vertical direction. The sub fan unit 15 is configured to be housed in the indoor unit 1 without widening.

  The sub fan 19 is constituted by a centrifugal fan such as a sirocco fan or a turbo fan, and no reverse wind is generated even when the sub fan 19 rotates in the reverse direction. Even in a narrow air passage, a higher air flow can be obtained than an axial fan.

  The blower unit located in the upper half of the sub fan unit 15 includes a sub fan 19, a sub fan motor 20 that drives the sub fan 19, a suction side casing 15a that forms an air suction side air passage of the sub fan 19, and a sub fan. 19 of the air blowing side of the air blowing side and the blowing side casing 15b in which the sub fan 19 and the sub fan motor 20 are housed, the mouth ring 27 for partitioning the suction side casing 15a and the blowing side casing 15b, and the suction side casing 15a. A damper I29 located on the suction side, a sub suction port 16 through which room air is sucked, and an air supply / intake port 24a communicated with the air supply / exhaust port 18 are provided. By the operation of the damper I29, one of the sub suction port 16 and the supply air suction port 24a is opened and the other is closed.

  In addition, the sub fan 19 and the sub fan motor 20 are housed in the blowout side casing 15 b, and the air flow from the suction side casing 15 a to the blowout side casing 15 b is performed via the sub fan 19. The sub fan 19 is a centrifugal fan that sucks air from the axial direction that is the longitudinal direction of the indoor unit 1 and blows it out in the circumferential direction. Unlike the propeller fan that blows out the sucked air in the fan axial direction, the centrifugal fan blows out the sucked air in the circumferential direction, so that the width dimension of the sub fan unit 15 in the fan axial direction can be reduced. The sub fan motor 20 is incorporated in the recess of the sub fan 19 so that the width of the sub fan unit 15 is reduced. By operating the damper I29 provided in the suction side casing 15a, the sub suction port 16 or the air supply suction port 24a opened in the room is opened, and the other is shut off.

  The lower half of the sub fan unit 15 has a fine air supply filter 21 used in an air purifier that removes substances harmful to the human body as well as dust contained in the air, and a pre-filter that removes dust in the air. The filter 33, the indoor outlet 17 for guiding air to the sub outlet 13, the air supply / exhaust port 18 for exhausting dirty indoor air to the outside or taking fresh outdoor air into the room, and the air blown from the sub fan 19 to the room An air supply circulation air passage 26 to be guided and a damper II 31 for switching the air passage and controlling the flow of air are provided. Similar to the upper half, the lower half of the sub fan unit 15 is partitioned into left and right spaces in the height direction when viewed from the front. This is done via the air passage 23. By operating the damper II 31, the air flow path is switched, the exhaust air path 23 is opened, the air supply circulation air path 26 is shut off, and the air blown from the sub fan 19 is communicated with the air supply / exhaust port 18. Alternatively, the exhaust air passage 23 is shut off, the air supply circulation air passage 26 is opened, and an air passage communicating with the indoor blowing portion 17 is formed.

  The feeder filter 21 is composed of a filtration part having an eye for filtering dust and the like of 0.5 to 1.0 μm and an adsorption part (specifically activated carbon) for adsorbing odor. In order to increase the filter area and reduce ventilation resistance, a sheet-like filter is formed by being folded (folded). The air supply filter 21 has a capability of filtering organic particles such as fine particles, tobacco smoke, and toluene contained in exhaust gas from a diesel vehicle.

  In the present embodiment, when the outdoor air is taken into the room, it is taken into the room through the air supply filter 21. In recent years, outdoor air tends to be polluted in urban areas, and various pollutants are floating in the air. Even in the suburbs, there are factors that pollute the atmosphere, for example, there are floating organic solvents that have been vaporized in the vicinity of exterior wall painting work, and bonfire smoke is floating. In this environment, when outside air is introduced, these pollutants enter the room and become uncomfortable for residents.

  Therefore, in the air conditioner according to the present embodiment, the air supply operation is selected manually or automatically, and when the outdoor air is introduced by operating the sub fan unit 15 (ventilation unit), the air supply filter 21 is installed. Through the filter, substances that can be removed within the range of the capacity of the filter are removed and supplied to the room.

  Thereby, when the outdoor air is contaminated by the causative substance, the outdoor air can be taken into the indoors as clean air, so that discomfort associated with the introduction of outside air can be reduced.

  As will be described later, as the operation of the sub fan unit 21, there are an air supply operation for introducing outside air, an exhaust operation for discharging indoor air to the outside, and a circulation operation for sucking indoor air and returning it to the room. However, in the exhaust operation and the circulation operation, exhaust or circulation is performed without passing through the air supply filter 21.

  Further, if the air supply filter 21 has such a performance as to capture a virus having a size of 0.3 to 3 μm, it is possible to prevent the entry of a virus from the outside.

  As shown in FIG. 6, the sub fan unit 15 includes, from above, a sub fan 19 disposed so that the rotation axis thereof is substantially parallel to the axis of the main fan 9, and a ventilation that communicates with one surface of the sub fan unit 15. The prefilter 33 facing the road, the ventilation surface faces in the same direction as the air suction surface of the sub fan 19, in other words, the perpendicular of the ventilation surface when the pleats are removed becomes substantially parallel to the drive axis of the sub fan 19. The air supply filter 21 arranged as described above is accommodated. In this way, in particular, the sub fan unit 15 and the air supply filter 21 are arranged, whereby the width of the sub fan unit 15 can be reduced, and the sub fan unit 15 can be reduced without increasing the width of the indoor unit 1. Can be stored in the indoor unit 1. The ventilation surface of the sub fan 19 and the ventilation surface of the air supply filter 21 are not perpendicular to each other. Desirably, the thickness can be reduced by making the perpendiculars of both surfaces parallel.

  Further, the pre-filter 33 is a thing for removing large dust mainly entering with air from the outside at the time of air supply. . Therefore, in this embodiment, as shown in FIG. 6, the side wall surface communicates with the air supply / exhaust port 18 from the air supply / exhaust port 18 opened on the back to the front, and the side wall surface closes the suction side casing 15 a (see FIG. 5). Formed on the suction side casing lid 15 c), the upper wall surface is formed by the air supply / exhaust air passage top plate 25 a extending from the upper end surface of the air supply / exhaust port 18 to the front side, and the lower surface is formed on the suction side surface of the air supply filter 21. An air supply / exhaust air passage 25 which is a space formed by a pre-filter 33 mounted between the space and the space on the air supply / exhaust air passage top plate 21a side is provided. Thereby, the area of the pre-filter 33 can be enlarged and the period until the pre-filter 33 is clogged is extended. Further, in order to increase the area of the pre-filter 33 and widen the area of the air supply filter 21, the air supply / exhaust port 18, which is an outdoor opening, is projected in the vertical direction of the air supply / exhaust filter 21 (housing part) when viewed from the front. A part or the whole of the air supply / exhaust air passage 25 is formed between the sub fan 19 and the air supply filter 21. By arranging the air supply / exhaust port 18 on the back surface of the storage portion of the air supply filter 21 as described above, the cleaning property is improved as described later. That is, the air supply / exhaust air passage 25 is curved downward as it goes from the front end face to the back air supply / exhaust port 18. Thereby, in addition to the above-described effects, the opening area of the air supply / exhaust port 18 can be increased. The front end face of the air supply / exhaust air passage is closed at one end of a pre-filter 33 that is elongated on the back surface, and an air supply / exhaust air passage lid 33b having a handle 33a attached to the front surface.

  The air supply filter 21 and the pre-filter 33 are inserted in the depth direction from the front side of the indoor unit 1 when inserted into the sub fan unit 15. The air supply filter 21 is inserted upright, and the pre-filter 33 is inserted sideways by being guided by a guide (not shown) and locked by the fitting portion 18a. By arranging the filters side by side in the vertical direction, the axial dimension of the sub fan 19 can be reduced. In addition, the air supply filter 21 and the pre-filter 33 both have handles 21a and 33a located on the front side of the sub fan unit 15. If necessary, the front cover 4 of the indoor unit 1 is opened, and the handles 21a and 33a can be pulled out and attached. The pre-filter 33 has flexibility and is arranged so as to block between the air supply / exhaust port 18 and the air supply filter 21 from the front of the sub fan unit 15 to the depth direction. It is fitted to the part 18a.

  In the present embodiment, the air supply filter 21 is employed not only to remove dust in the air but also to remove components harmful to the human body. A finer filter may be employed to remove only dust in the air.

  Next, the air supply operation, the exhaust operation, and the circulation operation by the sub fan unit 15 will be described with reference to FIGS. FIG. 8 is a diagram schematically showing the air flow of the sub fan unit shown in FIG. 2, and FIG. 9 is a diagram showing the operating state of the sub fan unit shown in FIG.

  The sub fan unit 15 has three operation modes and an operation stop state, which are an air supply operation, an exhaust operation, and a circulation operation. The wind flow direction and the damper open / close position in each operation mode are as shown in FIG. It should be noted that, as a matter of course, the wind does not flow when the operation is stopped, and the damper I29 and the damper II31 are in the position (b), respectively, and outdoor air is supplied from the air supply / exhaust port 18 to the sub suction port 16 and the indoor outlet 17. Preventing entry into the room. Further, although not specifically described, switching between the respective operation modes is performed by the operation unit of the remote control switch or by the operation unit of the indoor unit 1 in the case of manual operation. Moreover, in the case of automatic, it is performed by a command from a control unit (not shown). The sub fan unit 15 can be operated in combination with the air conditioning operation of the indoor unit 1 or can be operated alone. Furthermore, a timer can be provided in the sub fan unit 15 so that the operation can be automatically stopped after a certain period of operation.

  As shown in FIG. 8, the sub fan 19 used in the sub fan unit 15 rotates in a certain direction and causes air to flow in the direction of the arrow, so that the suction side casing 15a, the blowout side casing 15b, the mouth ring 27 are moved. The shape may be a shape that considers only the air flow in one direction. For this reason, while the ventilation efficiency of the subfan 19 can be improved, the driving noise of the subfan 19 can be reduced.

  By operating the damper I29, it is switched to either the air path that sucks in indoor air from the sub suction port 16 or the air path that opens the air supply air path 24 and sucks outdoor air from the air supply / exhaust port 18, and the damper II 31 is By operating, the operation mode of the sub fan unit 15 is switched to the air supply operation by switching to either the air passage for blowing air from the sub air outlet 17 into the room or the air passage for exhausting air from the air supply / exhaust port 18 to the outside. The operation mode is switched to either the exhaust operation mode or the circulation operation mode.

  That is, in the air supply operation, the damper I29 is on the (b) side, shields the sub-suction port 16 and opens the air supply air passage 24, so that outdoor air is sucked through the air supply air passage 24, and the damper II 31 is (a) Since the air supply circulation air passage 26 is opened and the exhaust air passage 23 is shielded, the outdoor air blown out to the sub fan blow-out portion 34 is blown into the air supply circulation air passage 26 and passes through the indoor blow-out portion 17. Then, the air is blown to the air duct 12 connected to the indoor outlet 17. In the case of this embodiment, the outdoor air sucked by the sub fan 19 is sucked from the air supply / exhaust port 18 through the air supply / exhaust air passage 25, and the dust contained in the air is removed on the surface of the pre-filter 33. After that, substances harmful to the human body are removed together with dust contained in the air on the surface of the air supply filter 21, passed through the air supply filter 21, and guided to the air supply air passage 24. 19 will be sucked into.

  Further, in the exhaust operation, the damper I29 is on the (a) side and opens the sub suction port 16 and shields the air supply air passage 24, so that the room air is sucked through the sub suction port 16, but the damper II31 is (b) Therefore, the air supply circulation air passage 26 is shielded and the exhaust air passage 23 is opened. As a result, the room air blown to the sub fan blower 34 flows into the exhaust air passage 23 and is exhausted from the air supply / exhaust port 18 to the outside through the prefilter 33.

  Further, in the circulating operation, the damper I29 is on the (a) side and opens the sub suction port 16 to shield the air supply air passage 24, so that the indoor air is sucked through the sub suction port 16 and the damper II 31 is moved to (a). Since the air supply circulation air passage 26 is open and the exhaust air passage 23 is shielded, the room air blown to the sub-fan blowing section 34 is blown to the air supply circulation air path 26, The air is sent to the air duct 12 connected to the indoor outlet 17 through the air.

  When the operation is stopped, both the damper I29 and the damper II31 are on the (b) side and prevent the outdoor air from entering the room through the supply air passage 24 or the exhaust air passage 23. Therefore, it is not necessary to provide a back wind prevention valve for preventing outdoor air from entering through the air supply / exhaust air passage when the operation is stopped.

  Next, details of the air supply operation will be described with reference mainly to FIG.

  In the air supply operation, the damper I29 shields the sub suction port 16 and opens the air supply suction port 24a, and the damper II 31 in the sub fan outlet 34 opens the air supply circulation air passage 26 and exhaust air passage. 23 is shielded, the air supply air passage 24 and the air supply / exhaust air passage 25 communicate with each other via the air supply filter 21. Accordingly, when the sub fan 19 is driven in this state, outdoor air is sucked from the air supply / exhaust port 18 through the air supply / exhaust air passage 25, and the sucked outdoor air passes through the pre-filter 33 and the air supply filter 21. And flows to the supply air passage 24. At this time, dust contained in the air is removed when passing through the pre-filter 33, and further, substances harmful to the human body are removed together with dust contained in the air when passing through the air supply filter 21. Will be.

  The outdoor air sucked into the supply air passage 24 enters the suction side casing 15a from the supply air suction port 24a, is sucked into the sub fan 19 from the mouth ring 27, and blown out to the blowout side casing 15b. 34 and flows into the air supply circulation air passage 26. The outdoor air that has flowed into the supply air circulation passage 26 flows into the air duct 12 from the indoor blowout portion 17, and the temperature of the air is changed to the temperature of the operating state of the indoor unit 1 while flowing through the air duct 12. It is conditioned and supplied to the room as fresh outdoor air having a conditioned temperature from the sub outlet, and the room air is refreshed.

  Next, details of the exhaust operation will be described with reference mainly to FIG.

  The room air during the exhaust operation is sucked into the sub suction port 16 after dust in the air is removed by the room air filter 8 (see FIG. 3). The damper I29 is located at the same position as that in the circulation operation, and opens the sub suction port 16 to block the supply air suction port 24a. Therefore, the indoor air is sucked in from the sub suction port 16, enters the suction side casing 15 a, is sucked into the sub fan 19, is blown out from around the sub fan 19, is collected by the blowout side casing 15 b, and is blown out to the sub fan blowing portion 34. Will be.

  In the exhaust operation, the damper II 31 in the sub fan blowing section 34 opens the exhaust air passage 23 and blocks the supply air circulation air passage 26, so that the room air blown out to the sub fan blowing section 34 is exhausted. The air flows through the air passage 23 to the air supply / exhaust air passage 25 and is discharged from the air supply / exhaust port 18 to the outside through the prefilter 33. Here, dust removed from the outdoor air during the air supply operation is accumulated on the air supply / exhaust port 18 side of the prefilter 33, but the indoor air during the exhaust operation flows through the prefilter 33. Dust accumulated on the surface of the pre-filter 33 on the air supply / exhaust port 8 side is effectively removed. Accordingly, the sub fan unit 15 repeats the air supply operation and the exhaust operation, thereby self-cleaning the prefilter 33, and the number of cleaning of the prefilter 33 can be reduced. Further, by automatically switching to the exhaust operation for a certain time during the air supply operation, the direction of the air flow flowing through the pre-filter 33 can be switched to prevent clogging.

  Further, during the exhaust operation, the indoor air to be exhausted does not pass through the air supply filter 21, so the ventilation resistance during the exhaust operation is reduced, the amount of indoor air to be exhausted can be increased, and an efficient exhaust operation is possible. It becomes.

  The air supply operation and the exhaust operation have been described above. However, if only the air supply and exhaust operations are basically performed, the sub-fan can be a forward / reverse fan, and one outdoor opening and one indoor opening can be provided. For example, it is necessary to consider a method for preventing the air supply filter 21 from passing when exhausting, but the structure is simple. However, in addition to this, by providing another indoor opening, one dedicated to the intake of indoor air and the other dedicated to the blowout, the circulation operation described below can be performed, and various applications are possible. It spreads.

  Next, details of the circulating operation will be described with reference mainly to FIG.

  The room air during the circulation operation is sucked from the sub suction port 16 (see FIG. 4). Although omitted in FIG. 12, an indoor air filter 8 (see FIG. 3) that removes dust from indoor air during the cooling and heating operation is extended to the front portion of the sub fan unit 15 (see FIG. 4). Since it is provided, the indoor air filter 8 removes dust contained in the air from the indoor air sucked by the sub suction port 16.

  During the circulation operation, the damper I29 opens the sub suction port 16 and blocks the air supply suction port 24a, so that the indoor air is sucked from the sub suction port 16 and enters the suction side casing 15a and passes through the mouth ring 27. Then, the air is sucked into the sub fan 19 and blown out from the periphery of the sub fan 19, collected by the blow-out side casing 15 b, and blown out to the sub fan blow-out portion 34. The exhaust air passage 23 is shut off by the damper II 31 provided in the sub-fan outlet 34 and the air supply circulation air passage 26 is opened. As a result, the room air blown to the sub-fan blowing section 34 flows into the supply air circulation air passage 26 and is blown out from the indoor blowing section 17 into the room.

  12 (a) does not clearly show the air duct 12, but the air duct 12 is connected with the air outlet 12a in contact with the indoor air outlet 17 as shown in FIG. The air blown out from the air 17 is blown into the air duct 12 as it is. The air duct 12 is disposed on the front surface of the dew receiver 11 (see FIG. 3), and the front end of the air duct 12 is located at the approximate center upper portion of the air outlet 6 (see FIG. 1) of the indoor unit 1, The room air blown to the duct 12 is blown out from the sub outlet 13 (see FIG. 2). Since the air duct 12 is provided in the front part of the dew receiver 11, the dew receiver 11 is cooled and cooled in the cooling operation, and is heated and heated in the heating operation. The air flowing in the air duct 12 is also precooled or preheated to the respective states depending on the respective operation states, and is blown out into the room from the sub outlet 13. Therefore, even when the sub fan unit 15 is operated in the circulation operation mode, the air volume during the cooling operation or the heating operation is increased, and the air preliminarily cooled or preheated to the temperature of each operation state is supplied from the sub air outlet 13. Since it blows out, the cooling capability or heating capability at the time of each driving | operation can be improved.

  As described above, since the sub fan 19 of the sub fan unit 15 of the present invention rotates in a certain direction, the shape of the mouth ring 27, the shape of the suction side casing 15a and the shape of the blowout side casing 15b are changed to the sub fan 19. It is possible to adopt an appropriate and reasonable shape, and thus it is possible to obtain the sub fan unit 15 having good blowing efficiency and low operation noise. Further, a sub fan motor 20 for driving the sub fan 19 is disposed in a recess provided in the sub fan 19, and is on the same plane surrounding the blowout side casing 15b of the subfan 19 (that is, outside the outer peripheral surface of the blowout side casing 15b). On the other hand, an exhaust air passage 23, an air supply air passage 24, and an air supply circulation air passage 26 are provided to construct a blower mechanism having a small width. Further, the air supply filter 21 is disposed at the lower part of the air blowing mechanism to reduce the width of the sub fan unit 15 so that the sub fan unit 15 can be accommodated in the indoor unit 1 without increasing the width of the indoor unit. ing.

  Next, the effect when the cooling / heating operation of the indoor unit 1 and the operation mode of the sub fan unit 15 are combined will be described with reference to FIGS. 13 and 14. 13 is an explanatory diagram when the cooling operation of the indoor unit of FIG. 1 is combined with the circulation operation or the air supply operation of the sub fan unit, and FIG. 14 is the heating operation of the indoor unit and the circulation operation or the supply of the sub fan unit of FIG. It is explanatory drawing at the time of using together driving.

  In FIG. 13, when the indoor unit 1 is cooled and the sub fan unit 15 is circulated or supplied, the air blown out from the sub air outlet 13 flows through the air duct 12. Since it is cooled and cooled, it is cooled by the air duct 12. Then, the air cooled by the air duct 12 is blown out almost horizontally as indicated by an arrow A from the sub air outlet 13 provided at the substantially upper center of the air outlet 6 of the indoor unit 1. On the other hand, in the cooling operation of the indoor unit 1, the cooled cold air is blown out from the air outlet 6 as indicated by the arrow B, and the whole room is cooled by blowing cool air far away from the room.

  In FIG. 13, since the cooling air of the cooling operation is added with the cooling operation of the sub fan unit 15 or the air supply operation, the amount of the cooling air is increased and the room can be quickly cooled. Or the noise at the time of air_conditionaing | cooling operation can be made low by making the air_conditioning | cooling capacity the same and reducing the air volume of air_conditionaing | cooling operation by the air volume which the sub fan unit 15 blows. In addition, since the air is blown out almost horizontally from the sub air outlet 13, the indoor upper space is covered, so that the cool air blown out from the air air outlet 6 can be effectively used in the living space in the lower part of the room. become able to.

  In FIG. 14, when the indoor unit 1 is operated for heating and the sub fan unit 15 is circulated or supplied, the air blown from the sub air outlet 13 flows through the air duct 12 while the air duct 12 Since it is heated by the dew tray 11 and warmed, it is heated by the air duct 12. Then, the air heated by the air duct 12 is blown out almost horizontally as indicated by an arrow A from the sub air outlet 13 provided at the substantially upper center of the air outlet 6 of the indoor unit 1.

  On the other hand, the warm air that is heated by the heating operation of the indoor unit 1 and becomes warm and blown out from the air outlet 6 tends to constantly rise toward the upper part of the room because the specific gravity is light. . Therefore, the warm air of the heating operation blows downward from the air outlet 6 as indicated by the arrow B, and first warms the floor of the room and suppresses the warm air from rising toward the upper part of the room. The space will be heated. In the conventional case where there is no hot air blown out from the sub blower outlet 13, the hot air blown out from the air blower outlet 6 starts to rise as indicated by the arrow B as the speed of the hot air slows down to the far side of the room. The warm warm air could not be reached, and light and warm air was retained in the upper space of the room.

  However, in the indoor unit 1 of the present embodiment, the warm air is blown out almost horizontally as indicated by the arrow A from the sub air outlet 13 provided substantially at the upper center of the air outlet 6, so The warm air of the warm heating operation is covered, and the warm air of the heating operation is guided to the distant place of the room by the warm air blown from the sub blower outlet 13. Therefore, even in the heating operation of the indoor unit 1, a more effective heating operation can be performed by using the circulation operation or the air supply operation of the sub fan unit 15 together.

  As described above, the air duct 12 is provided on the front surface of the dew receiver 11, and therefore, when the heat exchanger 10 of the indoor unit 1 is cooled in the cooling operation, it receives the condensed cold drain water. The dew receiver 11 is cooled, and the air duct 12 provided on the front surface of the dew receiver 11 is cooled and cooled by the dew receiver 11 to cool the air flowing therethrough. Therefore, even if hot outdoor air is supplied indoors during the cooling operation, the air is preliminarily cooled by the air duct 12 and blown out into the room, so that the cooling effect is not greatly impaired.

  Further, when the heat exchanger 10 of the indoor unit 1 is heated by heating operation, the dew receiver 11 is directly heated and warmed, and the air duct 12 provided on the front surface thereof is heated by the dew receiver 11, The air flowing through it will be warmed. Therefore, even if cold outdoor air is supplied to the room during the heating operation, it is preheated by the air duct 12 and blown into the room, so that the heating effect is not greatly impaired.

  In addition, without performing the cooling / heating operation of the indoor unit 1, only the sub fan unit 15 performs the circulation operation, the exhaust operation or the air supply operation alone to circulate the indoor air gently or to discharge the dirty air in the room. Or fresh air outside can be taken in and indoor air can be refreshed.

  Next, the sub outlet 13 will be described with reference to FIG. FIG. 15 is a cross-sectional view illustrating the presence or absence of a rectifying plate at the sub outlet of the indoor unit in FIG.

  As shown in FIG. 15A, a wind direction rectifying plate 12 b is provided at the sub outlet 13 of the air duct 12. By providing the wind direction rectifying plate 12b, the air blown out from the sub outlet 13 flows while being deflected along the wind direction rectifying plate 12b, and is blown out in a direction substantially perpendicular to the indoor unit 1. When there is no wind direction rectifying plate 12b, the air flowing through the air duct 12 is blown in an oblique direction as shown in FIG. 15B by the inertial force, and the flow of the cold air in the cooling operation described above. Cannot be effectively induced, and the flow of warm air rising during heating operation cannot be effectively suppressed. In addition, since the air that has been air-conditioned and blown out from the air outlet 6 during the air-conditioning operation has a high flow velocity at the center of the air outlet 6, the effect is obtained by providing the sub outlet 13 at the substantially upper center of the air outlet 6. Thus, it becomes possible to effectively induce the flow of the cold air during the cooling operation and to effectively suppress the flow of the warm air rising during the heating operation.

  Next, the outdoor duct 22 will be described with reference to FIG.

  An outdoor duct 22 is connected to the air supply / exhaust port 18, and the outdoor duct 22 is disposed outside the room. An insect repellent filter 30 is provided at the distal end portion 22 a of the outdoor duct 22. The coarseness of the insect repellent filter 30 is coarser than that of the prefilter 33. This is to prevent clogging during the air supply operation. Further, a cover 32 is provided at the tip 22a so as to cover the periphery of the insect repellent filter 30, and the shape of the tip of the cover 32 is irregular as shown in the figure. For example, by using a wavy line shape, even if a large dust such as newspaper covers the cover 32, it is possible to secure the air to be sucked in from the gap recessed in the wavy shape.

  Next, an apparatus for cleaning the inside of the sub fan unit 15 and the outdoor duct 22 will be described with reference to FIG.

  When dust accumulates inside the sub fan unit 15 and the outdoor duct 22, the air supply filter 21 and the pre-filter 33 are removed, and the cleaning unit 34 is inserted instead of the air supply filter 21. At this time, since the insertion port of the air supply filter 21 and the air supply / exhaust port 18 are arranged in a straight line in the depth direction of the sub fan unit 15, the nozzle 34b extends to the back of the sub fan unit 15, that is, It can reach to the vicinity of the outdoor duct 22. And by attaching a household vacuum cleaner (not shown) to the vacuum cleaner mounting portion 34a and operating the vacuum cleaner, the dust accumulated in the sub fan unit 15 and the outdoor duct 22 can be sucked.

  As described above, according to the above-described embodiment, the sub-fan that rotates in a certain direction separately from the main fan, the suction port and the casing that are adapted to the sub-fan, the exhaust air passage that discharges the indoor air, and the outdoor air The air supply air passage that sucks in the air, the air supply and exhaust air passage that shares the exhaust and air supply, and the air supply and circulation air passage that shares the air supply and the circulation. A sub-fan unit that can be used for circulation operation, exhaust operation, and air supply operation by switching to indoor air or outdoor air and switching the air blown out by the damper provided in the blowout part of the casing to the indoor or outdoor By rotating the fan in a certain direction and making the inlet and casing of the sub fan suitable for the sub fan, the blowing efficiency of the sub fan unit Improved, it can be obtained indoor unit of separate type air conditioner operation was low noise sub-fan unit.

  In addition, in the air supply operation, the sucked outdoor air is passed through the air supply filter, but in the exhaust operation, the indoor air to be exhausted is not passed through the air supply filter, so the ventilation resistance during the exhaust operation is reduced. The amount of indoor air to be exhausted can be increased.

  Furthermore, the air is passed through the prefilter during the air supply operation to remove the dust in the outdoor air, and the indoor air exhausted through the prefilter is also blown during the exhaust operation. By cleaning the dust accumulated in the sub fan unit, it is possible to build a cleaning function for the sub fan unit, and the air supply filter and pre-filter can be removed and installed from the front by opening the front cover of the indoor unit. And maintainability is improved.

  Also, an air duct is provided at the front part of the dew receiver of the indoor unit, and the air flow blown out by the sub fan unit is guided to the sub air outlet provided at the substantially upper center of the air outlet of the indoor unit, and is blown out from the sub air outlet. By doing so, it is possible to cause the cool air blown out in the cooling operation to reach far away from the room and to suppress the rise of the warm air blown out in the heating operation.

  In the present embodiment, three operation modes are provided as the operation of the sub fan unit 15, but the circulation operation mode may not be provided.

The external view of the indoor unit of the air conditioner which concerns on one Example of this invention. The external view of the state which removed the decorative cover of the indoor unit of FIG. AA sectional drawing of FIG. BB sectional drawing of FIG. External view of a sub fan unit. The perspective view which abbreviate | omitted the right side board of the sub fan unit of FIG. The perspective view which abbreviate | omitted a part of left side board of the sub fan unit of FIG. The figure which represents typically the flow of the air of the subfan unit shown in FIG. The figure showing the operation state of the sub fan unit shown in FIG. The figure which shows the flow of the air in a sub fan unit at the time of an air supply driving | operation. The figure which shows the flow of the air in a subfan unit at the time of exhaust operation. The figure which shows the flow of the air in a subfan unit at the time of circulation driving | operation. Explanatory drawing at the time of using together the air_conditionaing | cooling operation of the indoor unit of FIG. Explanatory drawing at the time of using together the heating operation of the indoor unit of FIG. 1, and the circulation operation or the air supply operation of a sub fan unit. FIG. The figure explaining the outdoor duct 22. FIG. The figure at the time of cleaning the subfan unit 15. FIG. The figure showing the air filter 8. FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Indoor unit, 2 ... Unit box body, 3 ... Cosmetic cover, 4 ... Front cover, 5 ... Air inlet, 6 ... Air blower outlet, 7 ... Up-down wind direction plate, 8 ... Air filter, 8a ... Frame part, 8b ... Filter section, 9 ... Main fan, 10 ... Heat exchanger, 11 ... Dew receiving, 12 ... Air duct, 13 ... Sub outlet, 14 ... Main fan motor, 15 ... Sub fan unit, 15a ... Suction casing, 15b Air outlet side casing, 16 ... Sub inlet port, 17 ... Indoor air outlet, 18 ... Air supply / exhaust port, 19 ... Sub fan, 20 ... Sub fan motor, 21 ... Air supply filter, 22 ... Outdoor duct, 22a ... Outdoor duct End part 23 ... Exhaust air path 24 ... Supply air path 25 ... Supply / exhaust air path 26 ... Supply air circulation path 27 ... Mouth ring 29 ... Damper I 30 ... Insect repellent filter , 31 ... damper II, 32 ... insect filter cover, 32a ... cover tip 33 ... prefilter, 34 ... cleaning device, 34a ... cleaner mounting portion, 34b ... nozzle.

Claims (10)

  An air inlet and an air outlet formed in a horizontally long indoor unit, a main fan that is installed between the air inlet and the air outlet and forms an air air passage, and the air inlet that operates the main fan A heat exchanger for exchanging heat from the indoor air sucked from the mouth, a filter installed on the upstream side of the air flow of the heat exchanger, an indoor opening provided in the indoor unit, and open to the indoor A casing that connects an open outdoor opening to form an air air passage inside, and an air supply operation that is provided on the air air passage in the casing and that takes outdoor air into the room by rotating or indoor air to the outside An air conditioner including a sub fan that performs an exhaust operation for exhaust and a supply / exhaust unit having a sub fan motor, and at least an air supply passage through which outdoor air passes during the air supply operation. Provided with a filter, and arranged so that the rotation axis of the sub fan and the rotation axis of the main fan are substantially parallel, and the angle between the air suction surface of the sub fan and the air passage surface of the air supply filter is perpendicular Air conditioner arranged so as not to become.   An air inlet and an air outlet formed in a horizontally long indoor unit, a main fan that is installed between the air inlet and the air outlet and forms an air air passage, and the air inlet that operates the main fan A heat exchanger for exchanging heat from the indoor air sucked from the mouth, a filter installed on the upstream side of the air flow of the heat exchanger, an indoor opening provided in the indoor unit, and open to the indoor A casing that connects an open outdoor opening to form an air air passage inside, and an air supply operation that is provided on the air air passage in the casing and that takes outdoor air into the room by rotating or indoor air to the outside An air conditioner including a sub fan that performs an exhaust operation for exhaust and a supply / exhaust unit having a sub fan motor, and at least an air supply passage through which outdoor air passes during the air supply operation. An air conditioner provided with a filter, which takes in outdoor air through the air supply filter during the air supply operation and exhausts the room air outside the air supply filter without passing through the air supply filter during the exhaust operation .   An air inlet and an air outlet formed in the horizontally long indoor unit, a main fan that is installed between the air inlet and the air outlet and forms an air air passage, and the air inlet that operates the main fan A heat exchanger for exchanging heat from the indoor air sucked from the mouth, a filter installed on the upstream side of the air flow of the heat exchanger, an indoor opening provided in the indoor unit, and open to the indoor A casing that connects an open outdoor opening to form an air air passage inside, and an air supply operation that is provided on the air air passage in the casing and that takes outdoor air into the room by rotating or indoor air to the outside An air conditioner including a sub fan that performs exhaust operation for exhaust and a supply / exhaust unit having a sub fan motor, and an air supply filter through which outdoor air passes during the air supply operation; A pre-filter is provided in an air path upstream of the air supply filter during the air supply operation, and outdoor air is taken into the room through the prefilter and the air supply filter during the air supply operation, and the exhaust An air conditioner that exhausts indoor air to the outside through the prefilter instead of the air supply filter during operation.   An air inlet and an air outlet formed in a horizontally long indoor unit, a main fan that is installed between the air inlet and the air outlet and forms an air air passage, and the air inlet that operates the main fan A heat exchanger for exchanging heat from the indoor air sucked from the mouth, a pre-filter for a heat exchanger installed on the upstream side of the air flow of the heat exchanger, and an indoor opening provided in the indoor unit and opened indoors A casing that connects an outdoor opening that is open to the outside and forms an air air passage inside, and an air supply operation that is provided on the air air passage in the casing and that takes outdoor air into the room by rotation An air conditioner comprising a sub-fan that performs an exhaust operation for exhausting air to the outside and a supply / exhaust unit having a sub-fan motor, wherein an indoor air inlet port during the exhaust operation is provided Air conditioner provided in a part of the pre-filter for the heat exchanger care Iruta.   An air inlet and an air outlet formed in a horizontally long indoor unit, a main fan that is installed between the air inlet and the air outlet and forms an air air passage, and the air inlet that operates the main fan A heat exchanger for exchanging heat from the indoor air sucked from the mouth, a pre-filter for a heat exchanger installed on the upstream side of the air flow of the heat exchanger, and an indoor opening provided in the indoor unit and opened indoors A casing that connects an outdoor opening that is open to the outside and forms an air air passage inside, and an air supply operation that is provided on the air air passage in the casing and that takes outdoor air into the room by rotation An air conditioner including a sub-fan that performs an exhaust operation for exhausting air to the outside and a supply / exhaust unit having a sub-fan motor, and an air supply through which outdoor air passes during the air-supply operation A filter and a storage section for storing the air supply filter, the air supply filter can be attached to and detached from the front of the indoor unit, and the outdoor opening is viewed from the front of the indoor unit. An air conditioner formed so as to be partially or wholly covered within the vertical projection surface of the storage unit.   An air outlet formed below the horizontally long indoor unit, an air inlet formed above the air outlet, a main fan installed between the air inlet and the air outlet, and Provided in the indoor unit, a heat exchanger that operates a main fan and exchanges heat between indoor air sucked from the air suction port, a pre-filter for a heat exchanger installed on the upstream side of the air flow of the heat exchanger, and the indoor unit A casing that connects an indoor opening that opens indoors and an outdoor opening that opens outdoor, and forms an air air passage in the interior, and is provided on the air air passage in the casing, and rotates to rotate outdoor air. In the air conditioner including a sub-fan and a sub-fan motor having a sub-fan and a sub-fan motor for performing an air-supply operation for taking in the room or an exhaust operation for exhausting indoor air to the outside, the indoor opening Providing two, one for the suction air, the air conditioner was for blowing air and the other.   In Claim 6, The duct which connects the sub air outlet formed between the air outlet formed below the indoor unit and the air inlet, and the indoor opening for the air outlet, Air conditioner equipped with.   An air outlet formed below the horizontally long indoor unit, an air inlet formed above the air outlet, a main fan installed between the air inlet and the air outlet, and Provided in the indoor unit, a heat exchanger that operates a main fan and exchanges heat between indoor air sucked from the air inlet, a pre-filter for a heat exchanger installed on the upstream side of the air flow of the heat exchanger, and the indoor unit A casing that connects an indoor opening that opens indoors and an outdoor opening that opens outdoor, and forms an air air passage inside, and is provided on the air air passage inside the casing and rotates to allow outdoor air to flow. In an air conditioner comprising a sub-fan and a sub-fan motor for performing an air-supply operation for taking in the room or an air-exhaust operation for exhausting indoor air to the outside. The pre-filter through which the introduced outside air passes before reaching the sub fan motor, the outdoor duct connected to the outdoor opening, the tip of which is installed outside, and the opening at the tip of the outdoor duct An air conditioner provided with a third filter that is provided and coarser than the prefilter.   9. The air conditioner according to claim 8, wherein a cover that covers the periphery of the third filter provided at the tip of the outdoor duct is provided, and the shape of the tip of the cover is irregular. An air outlet formed below the horizontally long indoor unit, an air inlet formed above the air outlet, a main fan installed between the air inlet and the air outlet, and Provided in the indoor unit, a heat exchanger that operates a main fan and exchanges heat between indoor air sucked from the air inlet, a pre-filter for a heat exchanger installed on the upstream side of the air flow of the heat exchanger, and the indoor unit A casing that connects an indoor opening that opens indoors and an outdoor opening that opens outdoor, and forms an air air passage in the interior, and is provided on the air air passage in the casing, and rotates to rotate outdoor air. An air conditioner comprising: a sub-fan that performs an air supply operation to be taken in indoors or an exhaust operation that exhausts indoor air to the outside; and a supply / exhaust unit having a sub fan motor. An air conditioner having a function of shielding between the chamber opening and the outdoor opening during stop.

Images