KR20040018360A - Ventilating Device and Air Conditioner - Google Patents

Abstract

The present invention provides an air conditioner that can send in outdoor air to an indoor space, and can effectively discharge indoor air to the outside. The air conditioner comprises an air supply and discharge line (7), a humidification fan (70), and a switching damper (90). The air supply and discharge line (7) connects an indoor space with an outdoor space. The fan (70) has an air intake port and an air discharge port. The switching means (90) can switch between a first and a second state. The first state is one in which the air discharge port of the humidification fan (70) communicates with the air supply and discharge line (7). The second state is one in which the air intake port of the humidification fan (70) communicates with the air supply and discharge line (7). <IMAGE>

Description

Ventilating Device and Air Conditioner

Background Art In recent years, air conditioners such as air conditioners have been provided with a humidifying unit that takes in moisture from outdoor air and conveys moisture to the interior.

This humidification unit has a structure as disclosed in, for example, Japanese Patent Laid-Open No. 2001-41511, and humidifies the air sent to the room by a blower using a humidification rotor made of zeolite or the like. Specifically, the air sent to the room by adsorbing the moisture in the air to the humidifying rotor on the one hand, and desorbing the moisture from the humidifying rotor using the heater on the other hand, and adding the desorbed moisture to the air to the room. Is humidifying.

In this way, in the air conditioner provided with the humidification unit, it is possible to supply humidified air to the room, so that the room is kept at a comfortable relative humidity even in the winter when the air is dry. In addition, since the humidification unit has a blower and has a function of supplying the air blown in from the outside into the room, when the humidification is not necessary, it is also possible to ventilate by using the function of supplying the outdoor air into the room. Do.

Thus, the humidifying unit which blows in the outdoor air, humidifies (or does not humidify), and supplies it indoors by a blower also has a ventilation function as mentioned above. In general, since the outdoor air is higher in cleanliness than the indoor air, when the outdoor air is sent to the room by the blower of the humidification unit, the room is ventilated and the cleanness of the indoor air is increased.

However, if the indoor air is heavily contaminated by smoking or the like, the above ventilation method for sending outdoor air to the room takes time to push the contaminated indoor air out through a gap in the room.

On the other hand, it is conceivable to install a ventilator separately from the air conditioner to effectively discharge the air pollution caused by smoking, etc.However, unlike an air conditioner, if a new ventilator that is not normally installed is newly installed in the room, Installation costs such as construction costs become high.

SUMMARY OF THE INVENTION An object of the present invention is to provide a ventilator or an air conditioner included in an air conditioner, capable of sending outdoor air to an interior and effectively discharging the indoor air to the outside.

The present invention relates to a ventilator and an air conditioner included in an air conditioner, and in particular, to a ventilator and an air conditioner having an air path and a blower for connecting indoors and outdoors.

1 is a perspective view showing an appearance configuration of an air conditioner according to an embodiment of the present invention.

2 shows a refrigerant circuit and an air flow.

3 is an exploded perspective view of a conventional outdoor unit.

4 is a perspective view showing a first state of the humidifying fan and the switching damper of the humidifying unit.

5 is a longitudinal cross-sectional view showing a first state in the vicinity of the humidifying fan and the switching damper of the humidifying unit.

6 is a control block diagram of the air conditioner.

7 is a perspective view showing a second state of the humidifying fan and the switching damper of the humidifying unit.

8 is a longitudinal sectional view showing a second state in the vicinity of the humidifying fan and the switching damper of the humidifying unit.

9 is a longitudinal sectional view showing a third state near the humidifying fan and the switching damper of the humidifying unit according to another embodiment.

The ventilation device according to claim 1 is a ventilation device included in an air conditioner, and includes an air path, a blower, and a switching means. Air paths connect indoors and outdoors. The blower has an air blow-in part and an air blow-out part. The switching means is capable of switching to the first state and the second state. The first state is a state in which the air blowout part of the blower and the air path communicate with each other. The second state is a state in which the air blowing portion of the blower is in communication with the air path.

Here, by switching the first state and the second state by the switching means, it is possible to send outdoor air to the room via the air path or to discharge the indoor air to the outside through the air path. Therefore, if you want to slowly ventilate while keeping the room at a constant pressure, you can adopt a ventilation method that sends outdoor air to the room, and when you want to effectively discharge the indoor polluted air to the outside, It is also possible to adopt a ventilation method for discharging to the outdoors through the air.

In addition, it is also possible to consider rotating the blower in reverse instead of installing the switching means, but such a blower is generally low in blowing efficiency and not practical. Based on this fact, in the present invention, it is possible to use a blower which blows air in one direction by providing the above switching means.

In addition, the ventilation apparatus concerning this claim may be integrated in an air conditioner from the beginning, and may be connected and added to the air conditioner which does not have a ventilation function in an optional form.

In the ventilator according to claim 2, in the ventilator according to claim 1, the switching means is capable of switching to a third state in which the air path is blocked in addition to switching to the first state and the second state.

When switched to the third state by the switching means, the air path of the ventilator is blocked. Therefore, by switching to the third state when the outdoor wind is strong, it is possible to suppress the inadvertent generation of air from the outdoor to the indoor.

As for the ventilation apparatus of Claim 3, the ventilation apparatus of Claim 1 or 2 WHEREIN: A blower and a switching means are arrange | positioned outdoors.

Here, since the blower and the switching means which generate a noise may be arrange | positioned outdoors, it can suppress that an unpleasant person is indoors.

The ventilator according to claim 4 further includes a control unit according to any one of claims 1 to 3. The control unit switches the first state and the second state by controlling the switching means, so as to switch between supplying air from the outdoor to the indoor and exhausting the air from the indoor to the outdoor. In addition, the control unit changes the output of the blower at the time of supply and exhaust.

Here, the output of the blower can be increased, for example, in consideration of the characteristics of each of the air supply to blow the fresh air into the interior and the exhaust to directly discharge the indoor air to the outside through an air path. Do.

On the contrary, when it is desired to suppress the noise at the time of exhaust, it is also possible to reduce the output of a blower at the time of exhaust.

The air conditioner of Claim 5 is equipped with the indoor unit, the outdoor unit, and a humidification unit in any one of Claims 1-4. The humidifying unit is built in or arranged adjacent to an outdoor unit and has a blower, a switching means, and a humidifying means. In addition, the humidifying unit supplies humidifying air to the indoor unit through the air path.

Here, in addition to being able to use the blower for the purpose of ventilation, it is also possible to use the blower for supplying humidified air from the humidifying unit to the room. And since the blower and a switching means are provided in the humidification unit built in the outdoor unit or arrange | positioned adjacently, the noise of the blower and a switching means which generate | occur | produces by ventilation or humidification is not heard by a person indoors.

In addition, by providing the switching means in the humidification unit, it is possible to discharge the indoor air to the outside by using the blower of the humidification unit, and it is possible to enhance the ventilation function at low cost in the air conditioner equipped with the humidification unit. . In other words, in the air conditioner of the present invention, the blower and the switching means in the humidifying unit allow ventilation by discharging the indoor air to the outside in addition to the ventilation by the air supply to the indoors.

The air conditioner of Claim 6 is further equipped with the temperature control part which adjusts the temperature of indoor air in the air conditioner of Claim 5. In this air conditioner, by switching the switching means to the first state and the second state, the air supply from the outdoor to the indoor and the exhaust from the indoor to the outdoor are switched. Intensify the temperature control of the air.

At the time of exhausting, since the indoor air which is air-conditioned is discharged outside as it is through the air path, it may be considered that the air condition of the indoor is deteriorated. With this in mind, here, the temperature control effect of the indoor air by the temperature control unit is strengthened at the time of exhaust, and the deterioration of the indoor air condition is suppressed. For example, in an air conditioner in which inverter control is performed during cooling or heating, a sudden change in the room temperature can be avoided by temporarily increasing the frequency of the compressor during exhaust.

The air conditioner of Claim 7 is an air conditioner of Claim 5 WHEREIN: An indoor unit has a heat exchanger and an indoor blower. The indoor blower is installed to blow the indoor air into a predetermined space and to blow the indoor air into the room through a heat exchanger. The air path connects a predetermined space between the humidifying unit and the indoor unit.

Here, when outdoor air is supplied indoors, outdoor air sent from the blower of a humidification unit through an air path flows into the predetermined space of an indoor unit. This predetermined space is a space upstream of the air flow with respect to the heat exchanger of the indoor unit. Therefore, outdoor air flowing into the predetermined space of the indoor unit is blown out through the heat exchanger of the indoor unit. For this reason, the temperature change of indoor air becomes small compared with the case where outdoor air is supplied directly to indoor.

The air conditioner of Claim 8 is further equipped with the pollution sensor which detects the contamination state of indoor air in the air conditioner of any one of Claims 5-7.

Here, the air supply from the outdoor to the indoor and the exhaust from the indoor to the outdoor can be appropriately switched in accordance with the contamination state of the indoor air detected by the pollution sensor. For example, when the indoor air pollution is increased due to smoking or the like, it may be considered to switch to the exhaust, and when the indoor air is not polluted, the outdoor fresh air may be switched to the supply air that is blown into the room.

[Embodiment according to the present invention]

<Schematic structure of air conditioner>

1 shows an appearance of an air conditioner including a ventilation device according to an embodiment of the present invention.

This air conditioner 1 is comprised from the indoor unit 2 attached to the indoor wall surface, etc., and the outdoor unit 3 installed outdoors. The outdoor unit 3 is provided with an outdoor air conditioning unit 5 and a humidifying unit 4 for storing an outdoor heat exchanger or an outdoor fan. An indoor heat exchanger is accommodated in the indoor unit 2 and an outdoor heat exchanger is housed in the outdoor unit 3. And each heat exchanger and the refrigerant pipe 6 which connects these heat exchangers comprise the refrigerant circuit. Moreover, it is used between the humidification unit 4 and the indoor unit 2 when supplying air from the humidifying unit 4 to the indoor unit 2 side, and when discharging indoor air to the outside through the humidifying unit 4. A supply and exhaust pipe 7 is provided.

<Configuration of Refrigerant Circuit>

FIG. 2 adds an outline of the flow of air to the system diagram of the refrigerant circuit used in the air conditioner 1.

The indoor heat exchanger 11 is installed in the indoor unit 2. The indoor heat exchanger (11) is composed of a plurality of fins in which heat transfer pipes are folded and overlapped at both ends in the longitudinal direction and the heat transfer tubes are inserted, and exchange heat between the contacting air.

Moreover, in the indoor unit 2, the indoor fan motor 13 which rotationally drives the crossflow fan 12 and the crossflow fan 12 is provided. The cross flow fan 12 is formed in a cylindrical shape, and wings are provided on the circumferential surface in the direction of the rotation axis, and generate air flow in a direction intersecting the rotation axis. The cross flow fan 12 allows the indoor air to be blown into the indoor unit 2 and blows out the air after heat exchange with the indoor heat exchanger 11 into the room.

The outdoor air conditioning unit 5 includes a four-way switching valve 22 connected to the compressor 21 and a discharge side of the compressor 21, an accumulator 23 and a four-way switching valve 22 connected to the blowing side of the compressor 21. The heat exchanger 24 connected to the outdoor heat exchanger 24 connected to the outdoor heat exchanger 24 and the outdoor heat exchanger 24 is provided. The electric valve 25 is connected to the pipe 31 via the filter 26 and the liquid closing valve 27, and is connected to one end of the indoor heat exchanger 11 through the pipe 31. In addition, the four-way switching valve 22 is connected to the pipe 32 via the gas closing valve 28, and is connected to the other end of the indoor heat exchanger 11 through this pipe 32. These pipes 31 and 32 correspond to the refrigerant pipe 6 of FIG.

Further, in the outdoor air conditioning unit 5, a propeller fan 29 for discharging air after heat exchange in the outdoor heat exchanger 24 to the outside is provided. This propeller fan 29 is rotationally driven by the outdoor fan motor 30.

<Constitution of conventional outdoor unit>

Before demonstrating the structure of the outdoor unit 3, the conventional outdoor unit before this invention is made is demonstrated using an exploded perspective view (FIG. 3).

Conventional outdoor unit is composed of the lower outdoor air conditioning unit and the upper humidifying unit, the lower plate 41, the right plate 42, the left plate 43, the front plate 44, the protective wire mesh 46, the upper plate 47 ), And an outdoor unit casing including a humidification unit casing 48 and the like.

[Constitution affecting outdoor air conditioner unit]

The fan inlet 45 and the partition plate 49 are attached to the rear of the front plate 44. In addition, an outdoor heat exchanger 24 having a substantially L-shaped shape in planar view is mounted on the front surface of the protective wire mesh 46 positioned at the rear of the outdoor unit casing.

The front surface of the outdoor heat exchanger 24 is mounted with a fan motor stand 50 for fixing the outdoor fan motor 30. The outdoor fan motor 30 is provided in order to rotate the propeller fan 29. The propeller fan 29 has a negative pressure in a space formed by the fan inlet 45, the partition plate 49, the left plate 43, the lower plate of the outdoor heat exchanger 24 and the humidification unit casing 48. Iii), the air introduced from the rear and left sides of the outdoor unit casing is brought into contact with the outdoor heat exchanger 24 and exhausted to the front of the front plate 44.

Between the partition plate 49 and the right side plate 42, refrigerant circuits such as the compressor 21, the four-way switching valve 22, the electric valve 25, the liquid closing valve 27, and the gas closing valve 28 The component parts and thermistor 51 etc. for detecting the temperature of each part are arrange | positioned. In the right direction of the right plate 42, a closing valve cover 52 for protecting the liquid closing valve 27 and the gas closing valve 28 is mounted.

An electronic device box 53 is mounted above the propeller fan 29, and the electronic device box 53 houses a printed circuit board 54 having circuit components for controlling the respective parts. Heat dissipation fins 55 for dissipating the generated heat are mounted.

[Configuration related to humidification unit]

The humidification unit is provided with a humidification unit casing 48 located at the top of the outdoor unit. In the humidification unit casing 48, the right side is a space for accommodating the humidification rotor 58, etc., and the left side is the adsorption fan storage space 75 for accommodating the adsorption fan 81, etc. In the humidification unit casing 48, a humidification rotor 58, a heater assembly 64, a humidification fan 70, a cover member 74, an adsorption fan 81, and the like are disposed.

The humidifying rotor 58 is a honeycomb-shaped ceramic rotor having a generally disc shape, and has a structure in which air can easily pass. Specifically, as shown in FIG. 3, the rotor has a circular shape in a planar perspective, and has a fine honeycomb shape in a cross-sectional view cut in the horizontal plane. And air passes through many cylinder parts of the humidification rotor 58 which is polygonal in cross section.

The main part of the humidification rotor 58 is baked by adsorption agents, such as a zeolite. Although zeolite is used here, it is also possible to use adsorbents, such as a silica gel and an alumina. Adsorbents such as zeolite have the property of adsorbing moisture in the contacting air and desorbing the adsorbed moisture by heating.

The humidifying rotor 58 is rotatably supported by the support shaft 59 provided on the humidifying unit casing 48 side through the rotor guide 60. A gear is formed in the circumferential surface of the humidification rotor 58, and meshes with the rotor drive gear 62 attached to the drive shaft of the rotor drive motor 61.

The heater assembly 64 is disposed so as to cover approximately half (right half) of the upper surface of the humidifying rotor 58. The heater assembly 64 is composed of an upper cover 65 and a lower cover 69 that cover the heater body 66 and the heater body 66. The lower cover 69 is provided with an inlet 67 for blowing air and an outlet 68 for discharging the air heated by the heater body 66 to the humidifying rotor 58. The heater assembly 64 is mounted on the upper side of the humidifying rotor 58 through the heater fixing plate 63.

The humidification fan 70 is disposed at a position corresponding to the heater assembly 64 at the bottom of the humidification rotor 58. The humidification fan 70 is a centrifugal fan disposed in the space following the humidification hose 73 (the space below the outlet 68 of the lower cover 69 of the heater assembly 64). The humidification fan 70 passes through the humidification rotor 58 and is located at the front of the approximately half of the right side of the humidification rotor 58 (below the outlet 68 of the lower cover 69 of the heater assembly 64). The air descending from the position) is sent to the humidification hose 73. The humidification hose 73 is connected to the supply / exhaust pipe 7 and supplies the air sent from the humidification fan 70 to the indoor unit 2.

The cover member 74 covers the part (about half of the left side) in which the heater assembly 64 is not located among the upper surfaces of the humidification rotor 58. The cover member 74 together with the suction side bell mouse 84 described later forms an air flow path leading from the upper surface of the left half portion of the humidification rotor 58 to the upper portion of the suction fan storage space 75 described below. .

The adsorption fan 81 accommodated in the adsorption fan accommodation space 75 is a centrifugal fan that is rotated by the adsorption fan motor 83, and is supplied from the opening 85 of the adsorption side bell mouse 84 disposed above, It exhausts toward the exterior of the suction fan storage space 75 (outside of the humidification unit casing 48). The suction side bell mouse 84 is provided in the upper part of the suction fan accommodation space 75, and serves to guide the air coming through the air flow path formed by the cover member 74 to the suction fan 81. In addition, the suction fan motor 83 is fixed in the humidification unit casing 48 by the motor holder 82.

In addition, in the humidification unit casing 48, a power supply board 79, an electronic device component casing, and the like are disposed. The electronic device casing is composed of an electronic device component box 76 and a lid 77 that house the printed board 78 therein.

<Configuration of Outdoor Unit 3 of This Example>

Next, the outdoor unit 3 of the air conditioner according to the present embodiment will be described.

The outdoor unit 3 is composed of a lower outdoor air conditioning unit 5 and an upper humidifying unit 4. The outdoor air conditioning unit 5 has the same configuration as the outdoor air conditioning unit of the conventional outdoor unit described above. On the other hand, the humidification unit 4 has the structure which added the switching damper 90 to the humidification unit of the conventional outdoor unit mentioned above.

(Configuration and Movement of Switching Damper 90)

The switching damper 90 is a circular member 92 as shown in Figs. 4, 5, 7, and 8 in the rotary air flow path switching means disposed below the humidifying fan 70. The damper drive motor 91 (refer FIG. 6) which rotationally drives the member 92 is comprised.

The circular member 92 is composed of a circular lower plate 92 a, side walls 92 b, a semiconical side wall 92 c, an inner wall 92 d, and an inner cylindrical wall 96, as shown in FIG. It is. Each wall 92b; 92c; 92d; 96 extends upward from the lower plate 92a. The side wall 92b is divided in two by the side opening 92e and the semiconical side wall 92c. The inner wall 92d is comprised of three board parts extending radially from the vicinity of the center of the circular member 92, and divides the internal space of the circular member 92 by three. The interior of the circular member 92 is divided into a first space 93, a second space 94, and a third space 95 by this inner wall 92 d (see FIG. 4). The 1st space 93 does not exist in the side wall 92b, and is a space opened to the side by the side opening 92e. Two round holes 94a and 94b are formed in the lower plate 92a of the second space 94. The inner cylindrical wall 96 disposed in the second space 94 extends upward from the periphery of the round hole 94b. The semi-conical side wall 92c is provided adjacent to the round hole 94a, and has the shape close to the form which divided the cone into two vertically whose surface pointed downward. The space enclosed by the outer surface of this semi-conical side wall 92c becomes a space opened laterally, as shown to FIG. 7 and FIG. In addition, the upper spaces of the spaces 93 and 94 and 95, the space surrounded by the outer surface of the semiconical side wall 92c, and the space surrounded by the inner surface of the inner cylindrical wall 96 are open.

On the other hand, the humidification fan 70 arrange | positioned on the circular member 92 has the impeller 70a, the air inlet 70b, and the air outlet 70c as shown to FIG. 5 and FIG. The air inlet 70b and the air outlet 70c are formed in the lower surface of the casing of the humidification fan 70, and oppose the upper opening of the circular member 92. As shown in FIG.

The damper drive motor 91 is provided to rotate the circular member 92 as shown in FIGS. 5 and 8. Although not shown in FIGS. 5 and 8, the damper drive motor 91 is disposed below the circular member 92, for example. The damper drive motor 91 rotates the circular member 92 so that the first state in which the circular member 92 comes to the rotational position shown in FIGS. 4 and 5 and the circular member 92 are shown in FIGS. 7 and 8. Switch to the second state coming to the rotation position shown in FIG.

In the first state, a passage 89 (see FIG. 5) and a circular member (see FIG. 5) leading the humidified air or outdoor air through the heater assembly 64 and the humidifying rotor 58 to the circular member 92 of the switching damper 90. The first space 93 of 92 communicates through the side opening 92e. In the first state, the first space 93 of the circular member 92 communicates with the air intake 70b of the humidification fan 70 through the upper opening. In addition, in the first state, the inner cylindrical wall 96 of the circular member 92 communicates with the air outlet 70c of the humidification fan 70 at the upper portion, and the hose connecting portion 3a to which the humidification hose 73 is connected at the lower portion. ), The air outlet 70c of the humidification fan 70 and the humidification hose 73 are connected. Since the humidification hose 73 is connected to the supply / exhaust pipe 7, in the first state, the air blown out from the air outlet 70c of the humidification fan 70 passes through the air supply / exhaust pipe 7 to the indoor unit ( 2) will be supplied. Thereby, in a 1st state, air flows in the direction of the arrow shown by the dashed-dotted line of FIG. 4 and FIG. 5, and humidified air or outdoor air is supplied to the indoor unit 2 via the air supply / exhaust pipe 7. As shown in FIG.

On the other hand, in the second state, the hose connecting portion 3a to which the humidifying hose 73 is connected communicates with the second space 94 of the circular member 92 through the round hole 94a. In addition, the second space 94 communicates with the air inlet 70b of the humidification fan 70 through the upper opening. In addition, in the second state, the air outlet 70c of the humidifying fan 70 is positioned above the semiconical sidewall 92c of the circular member 92, and the air outlet 70c is the semiconical sidewall 92c. It connects to the passage 3b which leads to the outside (outside of the outdoor unit 3) through the space enclosed by the outside. Therefore, in the second state, air flows in the direction of the arrow shown by the dashed-dotted lines in FIGS. 7 and 8 and is discharged from the indoor unit 2 and air that has come through the supply / exhaust pipe 7 is air of the humidifying fan 70. The air is exhausted from the air outlet 70c to the outside of the air.

In addition, the supply / exhaust pipe 7 is connected to the predetermined space 2a of the indoor unit 2, as shown in FIG. This predetermined space 2a is a space upstream of the air flow of the indoor heat exchanger 11, and is a space in which air before heat exchange exists. Therefore, the air supplied to the indoor unit 2 through the supply / exhaust pipe 7 piggybacks on the flow of air in the indoor unit 2 generated by the cross flow fan 12, and is heated by the indoor heat exchanger 11. After exchange, it is taken out indoors.

(Operation of the humidification unit 4)

When the humidification operation is performed, the switching damper 90 is switched to the first state shown in FIGS. 4 and 5.

The humidification unit 4 rotates the adsorption fan 81 to inject air from the outside into the humidification unit casing 48. Air entering the humidifying unit casing 48 passes through about half of the left side of the humidifying rotor 58 and is formed by the cover member 74 and the suction side bell mouth 84 and the suction channel. Through 81, it is discharged | emitted outward from the suction fan accommodation space 75. As shown in FIG. When the air blown in from the outside into the humidification unit casing 48 passes through about half of the left portion of the humidification rotor 58, the humidification rotor 58 adsorbs the moisture contained in the air.

About half of the portion on the left side of the humidifying rotor 58 that has adsorbed moisture in this adsorption step becomes about half of the right side of the humidifying rotor 58 by the rotation of the humidifying rotor 58. That is, the adsorbed moisture moves to the part of the humidification rotor 58 located under the heater assembly 64 with the rotation of the humidification rotor 58. The moisture that has moved here escapes into the air flow generated by the humidification fan 70 by the heat from the heater body 66 of the heater assembly 64.

When the humidification fan 70 is driven to rotate, air is blown into the humidification unit casing 48 from the outside, and the air passes upward from the bottom of the inner part of the half of the left side of the humidification rotor 58 upwards. Then, it is introduced into the upper cover 65 from the inlet 67 of the lower cover 69. And the air which entered into the upper cover 65 is discharged | emitted from the discharge port 68, and passes the front part of the about half of the left side of the humidification rotor 58 from the upper side to the lower side, and the passage 89 and the switching damper. Through 90 is reached the humidification pan 70. This air flow is generated by the humidification fan 70. The humidification fan 70 sends the air which escaped the humidification rotor 58 and the switching damper 90 to the indoor unit 2 through the humidification hose 73 and the supply / exhaust pipe 7 as mentioned above. The air sent to the indoor unit 2 contains moisture adsorbed to the humidifying rotor 58.

In this way, the air supplied from the humidifying unit 4 to the indoor unit 2 is taken out from the predetermined space 2a to the room via the indoor heat exchanger 11.

<Configuration and Control of Control Unit 100>

The controller 100 is divided into an indoor unit 2 of the air conditioner 1, an outdoor air conditioning unit 5, and an electronic device component box disposed in the humidification unit 4. As shown in FIG. 6, the control unit 100 is connected to each device of the indoor unit 2 or the outdoor unit 3, and is heated, cooled, dried, and humidified based on an operation command of the remote controller 102 or the like. Operation control of each device is performed according to each operation mode such as operation, air supply operation and exhaust operation.

[Humidification driving]

The controller 100 performs the humidification operation when the humidification command is received from the remote controller 102 or when it is determined that the humidification operation is necessary according to the humidification autonomous operation command from the remote controller 102. This humidification operation is often performed together with a heating operation. In the humidification operation, the rotor drive motor 61, the heater body 66, the motor for rotating the humidification fan 70, and the adsorption fan motor 83 in the humidification unit 4 are driven. In this humidification operation, as described above, the moisture contained in the air introduced into the humidification unit 4 from the outside by the rotation of the adsorption fan 81 is adsorbed by the humidification rotor 58 and the heater main body 66. The air heated by the air) to the humidification rotor (58) by the rotation of the humidification fan (70), and the air containing the moisture separated from the humidification rotor (58) through the air supply and exhaust pipe (7). Supply it with

[Ventilation by air supply operation or exhaust operation]

In addition, when it is determined that the room needs to be ventilated, the control unit 100 performs the air supply operation or the exhaust operation. The air supply operation is an operation in which outdoor air is blown into the humidifying unit 4, and the outdoor air is supplied from the air supply and exhaust pipe 7 to the indoor unit 2. The exhaust operation causes the air in the supply / exhaust pipe 7 to be blown by the humidifying fan 70 of the humidifying unit 4, that is, the indoor air is blown into the supply / exhaust pipe 7 through the indoor unit 2, It is operation to discharge it out of the outdoor unit 3 from the humidification fan 70. The flow of air in the air supply operation and the exhaust operation is as described in the above-described [Configuration and Movement of Switching Damper 90] First State and Second State. During the air supply operation, the switching damper 90 is brought into the first state, and air flows in the direction of the arrow shown by dashed lines in FIGS. 4 and 5, and outdoor air flows through the air supply and exhaust pipe 7 to the indoor unit 2. Is supplied with. On the other hand, during the exhaust operation, the switching damper 90 is in the second state, and air flows in the direction of the arrow shown by the dashed-dotted lines in FIGS. 7 and 8, and is discharged from the indoor unit 2 to discharge the supply / exhaust pipe 7. The air which flowed through is exhausted out of the air from the air outlet 70c of the humidification fan 70. In addition, in the air supply operation and the exhaust operation, the suction fan 81 and the rotor drive motor 61 of the humidification unit 4 are not operated, and only the humidification fan 70 is rotated.

Whether or not it is necessary to ventilate the room, and whether the air supply operation and the exhaust operation are selected, is based on the operation mode in which the control unit 100 is set by the remote control unit 102 and the detection result of the pollution sensor 101. To judge. The pollution sensor 101 is provided in the indoor unit 2, and detects the contamination state of indoor air.

When the operation mode is automatic operation, when the contamination state exceeds the first allowable value, the control unit 100 determines that ventilation of the room is necessary. Then, the control unit 100 selects the air supply operation when the contamination state exceeds the first allowable value and falls below the second allowable value, and selects the exhaust operation when the contamination state exceeds the second allowable value. In addition, the user of the air conditioner 1 can also directly select the air supply operation or the exhaust operation as the operation mode using the remote controller 102. For example, when the room is filled with smoke and the air conditioner 1 is to be used as a substitute for the fan, it is preferable to directly select the exhaust operation. In addition, in the case where it is desired to slowly ventilate fresh outdoor air while air conditioning, air supply operation can be selected.

That is, the humidification fan 70 is controlled so that an output becomes large in exhaust operation compared with the air supply operation. Moreover, the control part 100 raises the frequency in the inverter control of the compressor 21 at the time of exhaust operation, and makes the motor rotation speed of the compressor 21 large.

<Characteristic of the air conditioner 1>

(One)

In the air conditioner 1, the outdoor air is sent indoors through the supply / exhaust pipe 7 (air path) by switching to the first state and the second state of the switching damper 90 in the humidifying unit 4. Air supply operation can also perform the exhaust operation which discharges indoor air to the exterior through the supply and exhaust pipe 7. Thereby, it is also possible to select the air supply operation or the exhaust operation as the operation for the purpose of ventilation.

(2)

In the air conditioner 1, the humidification fan 70 and the switching damper 90 which operate by a humidification operation, an air supply operation, and an exhaust operation are arrange | positioned in the humidification unit 4 of the outdoor. For this reason, the noise generated from these causes little discomfort to the people in the room.

(3)

The air conditioner 1 controls the output of the humidification fan 70 to be larger in the case of the exhaust operation than in the air supply operation, and the ventilation effect of the exhaust operation selected when it is desired to quickly ventilate the room is very high. On the other hand, in the air supply operation used for the ventilation method for sending outdoor fresh air to the room, the humidification fan 70 is moving with a relatively small output.

(4)

In the air conditioner 1, the humidification fan 70 is used for air supply operation as usual, and the humidification fan 70 is used for humidification operation.

In addition, here, the switching damper 90 is newly installed in the humidification unit 4, so that the exhaust operation for discharging indoor air to the outside using the humidification fan 70 can be performed. In an air conditioner with a humidification unit, a design change that enhances the ventilation function at such a low cost is possible.

(5)

At the time of the exhaust operation of the air conditioner 1, since the indoor air that is air-conditioned is discharged to the outside through the air supply and exhaust pipe 7 as it is, it is conceivable that the state of indoor air conditioner is deteriorated. With this in mind, the air conditioner 1 raises the frequency in the inverter control of the compressor 21 during the exhaust operation. Thereby, even if it exhausts, the deterioration of the air conditioner of a room is suppressed so that a sudden change of room temperature can be avoided.

(6)

In the air conditioner 1, in the air supply operation for supplying outdoor air indoors, the outdoor air sent from the humidification fan 70 of the humidifying unit 4 via the air supply and exhaust pipe 7 is the indoor unit 2. Flows into a predetermined space (2a). Since the predetermined space 2a is a space upstream of the air flow with respect to the indoor heat exchanger 11, outdoor air flowing into the predetermined space 2a is taken out to the room via the indoor heat exchanger 11. Therefore, the temperature change of the indoor air is smaller than when the outdoor air is directly supplied to the room.

[Other Embodiments According to the Present Invention]

(A)

As an optional state of the switching damper 90, it is also effective to provide the third state shown in Fig. 9 in addition to the above first and second states. In this third state, part of the lower plate 92a of the circular member 92 blocks the upper opening of the hose connecting portion 3a to which the humidifying hose 73 is connected. Therefore, the state where the inside and the outside communicated with each other through the supply / exhaust pipe 7 and the humidification hose 73 is extinguished by the lower plate 92a of the circular member 92, and the supply / exhaust pipe 7 is It does not communicate indoors and outdoors.

When the outdoor wind is strong, and if necessary, if the switching damper 90 is completely replaced by the manual operation or the automatic control, for example, an unintended flow of air from the outdoor to the indoor occurs. Is suppressed.

(B)

In the above embodiment, the pollution sensor 101 is installed in the indoor unit 2, but when the user of the air conditioner 1 determines the necessity of ventilation and the selection of the air supply operation and the exhaust operation, the pollution sensor 101 is provided. Omitting the installation of can also be considered.

(C)

In the above embodiment, although the rotary switching damper 90 is employed, it is also possible to study the surrounding structure and use a slide switching damper.

(D)

In the above embodiment, the output of the humidifying fan 70 is controlled to be larger in the case of exhaust operation than in the air supply operation. However, when the exhaust noise in the outdoor becomes a big problem, In some cases, it may be considered to control the output of the humidification fan 70 to be small.

By using the ventilator or the air conditioner according to the present invention, by switching the first state and the second state by the switching means, it is also possible to send the outdoor air to the room through the air path, It is also possible to discharge it outdoors. Therefore, if you want to slowly ventilate the room at a constant pressure, you can adopt a ventilation method that sends outdoor air to the room, and when you want to discharge the indoor polluted air to the outside effectively, It is also possible to adopt a ventilation method for discharging to the outdoors.

Claims (8)

In the ventilation device included in the air conditioner (1), Air path between indoor and outdoor (7, 73), A blower 70 having an air blowing portion 70b and an air blowing portion 70c, A switch capable of switching to a first state in which the air blower 70c and the air path 73 communicate, and a second state in which the air blower 70b and the air path 73 communicate with each other. Ventilation device having means (90). The method of claim 1, The switching means (90) is also capable of switching to a third state in which the air path (7, 73) is blocked. The method according to claim 1 or 2, The blower (70) and the switching means (90) are arranged outdoors. The method according to any one of claims 1 to 3, By controlling the switching means 90 to switch between the first state and the second state, the air supply is switched from the outdoor to the indoor and the exhaust from the indoor to the outdoor. And a control unit (100) for changing the output of the blower (70) at the time of the exhaust and the exhaust. Including the ventilation device of any one of claims 1 to 4, Indoor unit (2) and outdoor unit (3), It is built in or arranged adjacent to the outdoor unit (3) and includes the blower (70), the switching means (90), and a humidifying means, and through the air paths (7, 73) to the indoor unit (2). An air conditioner (1) having a humidification unit (4) for supplying humidified air. The method of claim 5, Further provided with a temperature control unit 21 for controlling the temperature of the indoor air, By controlling the switching means 90 to switch to the first state and the second state to switch from the outdoor to the indoor supply and the indoor to the outdoor exhaust, the temperature adjusting unit 21 Air conditioner (1) to enhance the temperature control action of the indoor air by). The method of claim 5, The indoor unit (2) includes a heat exchanger (11) and indoor blowers (12, 13) for blowing indoor air into a predetermined space (2a) and taking it out into the room through the heat exchanger, The air path (7, 73) is an air conditioner (1) connecting the humidifying unit (4) and a predetermined space (2a) of the indoor unit (2). The method according to any one of claims 5 to 7, The air conditioner (1) further provided with the pollution sensor 101 which detects the contamination state of indoor air.