Air conditioner

Abstract

An outdoor unit of an air conditioner according to an embodiment includes a first casing, a second casing (102), an absorbent material and a damper device (64) disposed in the second casing (102), and a fan that generates an air flow of outdoor air (A3). The damper device (64) distributes the outdoor air (A3) after passing through the absorbent material to an indoor unit or the first casing. The damper device (64) includes an inlet (64a) into which the outdoor air (A3) after passing through the absorbent material flows, and a first outlet (64b) that communicates with the indoor unit and through which the outdoor air (A3) flows. In addition, the damper device (64) includes a second outlet (64c) that communicates with the first casing and through which the outdoor air (A3) flows, and a closing door (64d) that selectively closes one of the first outlet (64b) and the second outlet (64c).

Description

Technical Field

[0001] This invention relates to air conditioners. Background Technology

[0002] Currently, as described in Patent Document 1, an air conditioner is known, comprising an indoor unit disposed in the room where the air is to be conditioned and an outdoor unit disposed outdoors. This air conditioning unit supplies either humidified or dehumidified outdoor air from the outdoor unit to the indoor unit. Specifically, an absorbent material rotates, with heated outdoor air passing through a portion of the absorbent material and unheated outdoor air passing through the remaining portion. One of the heated outdoor air (humidified outdoor air) and the unheated outdoor air (dehumidified outdoor air) is supplied to the indoor unit, while the other is exhausted outdoors.

[0003] Existing technical documents

[0004] Patent documents

[0005] Patent Document 1: Japanese Patent Application Publication No. 2003-314858 Summary of the Invention

[0006] However, in the case of the air conditioner described in Patent Document 1, noise may be generated by the outdoor unit when outdoor air that is not supplied to the room is discharged to the outside.

[0007] Therefore, the present invention provides an air conditioner that supplies outdoor air from an outdoor unit to an indoor unit, which can reduce the noise level generated by the outdoor unit when exhausting outdoor air to the outside.

[0008] One aspect of the present invention provides an air conditioner having an indoor unit and an outdoor unit. The outdoor unit includes a first housing, a second housing, and an absorbent material disposed within the second housing for outdoor air to pass through. Additionally, the outdoor unit includes: a damper device disposed within the second housing for distributing outdoor air, after passing through the absorbent material, to the indoor unit or the first housing; and a fan for generating an airflow of outdoor air that passes through the absorbent material toward the damper device. The damper device includes: an inlet for outdoor air to flow in after passing through the absorbent material; a first outlet communicating with the indoor unit for outdoor air to flow out; a second outlet communicating with the first housing for outdoor air to flow out; and a door for selectively closing one of the first outlet and the second outlet.

[0009] One aspect of the present invention provides an air conditioner that supplies outdoor air from an outdoor unit to an indoor unit, thereby reducing the noise level generated by the outdoor unit when exhausting outdoor air to the outside. Attached Figure Description

[0010] Figure 1This is a schematic diagram showing the structure of an air conditioner according to one embodiment of the present invention.

[0011] Figure 2 This is a schematic diagram showing the structure of the ventilation device.

[0012] Figure 3 It is a schematic diagram showing the operating status of the ventilation device during ventilation operation.

[0013] Figure 4 It is a schematic diagram showing the operating status of the ventilation device during humidification.

[0014] Figure 5 It is a schematic diagram showing the operating status of the ventilation device during dehumidification operation.

[0015] Figure 6 It is a three-dimensional view showing the appearance of the outdoor unit of an air conditioner.

[0016] Figure 7 This is a three-dimensional diagram showing the structure of the ventilation device with the cover removed.

[0017] Figure 8 This is a top view showing the structure of the ventilation device with the cover removed.

[0018] Figure 9 This is an exploded perspective view of the ventilation device with the cover removed.

[0019] Figure 10 It is a cross-sectional view showing the general structure of the ventilation device.

[0020] Figure 11 This is a three-dimensional diagram showing the structure of the heater unit.

[0021] Figure 12 This is a bottom view showing the structure of the heater unit.

[0022] Figure 13 This is an exploded perspective view showing the structure of the heater unit.

[0023] Figure 14 It means along Figure 12 A schematic cross-sectional view of the structure of the heater unit of line A-A.

[0024] Figure 15 This is a top view showing a portion of the housing of the ventilation system in the second space.

[0025] Figure 16 It is a schematic cross-sectional view showing the peripheral structure of a portion of the absorbent material that is radially orthogonal to the absorbent material.

[0026] Figure 17This is a schematic cross-sectional view showing the peripheral structure of a portion of the absorbent material that is radially orthogonal to the absorbent material in the ventilation device of the comparative example.

[0027] Figure 18 It is a schematic cross-sectional view showing the peripheral structure of a portion of the absorbent material that is radially orthogonal to the absorbent material in a ventilation device according to different embodiments.

[0028] Figure 19 It is a schematic cross-sectional view of the absorbent material holder, showing the labyrinthine flow path formed on the outside of the absorbent material holder.

[0029] Figure 20 It is a schematic cross-sectional view showing the components surrounding the first fan.

[0030] Figure 21 This is a schematic cross-sectional view showing the structure of the fourth air intake port of the housing in a ventilation device of different embodiments.

[0031] Figure 22 This is a top view showing a portion of the housing of the ventilation device in the second space of a ventilation device in different embodiments.

[0032] Figure 23A This is a cross-sectional view showing the damper device connected to the interior.

[0033] Figure 23B This is a cross-sectional view of a damper device in its connected state to the outside.

[0034] Figure 24 It is a three-dimensional cross-section view of an air exchange device that represents the airflow of outdoor air from the damper device.

[0035] Figure 25 It is a general view of the main body of the outdoor unit, showing the front view of the outdoor unit.

[0036] Figure 26 It is a three-dimensional view showing the indoor heat exchanger and nozzles installed in the indoor unit.

[0037] Figure 27 This is a side view of the indoor unit, showing its internal structure.

[0038] Figure 28 It is an exploded three-dimensional diagram showing the structure of the nozzle.

[0039] Figure 29 This is a three-dimensional diagram showing the nozzle separated into two parts.

[0040] Figure 30 This is a cross-sectional view showing the structure of the nozzle. Detailed Implementation

[0041] One aspect of the present invention is an air conditioner having an indoor unit and an outdoor unit. The outdoor unit includes a first housing, a second housing, and an absorbent material disposed within the second housing for the passage of outdoor air. Additionally, the outdoor unit includes: a damper device disposed within the second housing for distributing outdoor air, after passing through the absorbent material, to the indoor unit or the first housing; and a fan for generating an airflow of outdoor air passing through the absorbent material toward the damper device. The damper device includes: an inlet for the inflow of outdoor air after passing through the absorbent material; a first outlet communicating with the indoor unit for the outflow of outdoor air; a second outlet communicating with the first housing for the outflow of outdoor air; and a door for selectively closing one of the first and second outlets.

[0042] In one aspect of the present invention, an air conditioner supplies outdoor air from the outdoor unit to the indoor unit, thereby reducing the noise level generated by the outdoor unit when exhausting outdoor air to the outside.

[0043] For example, the first housing may include a mechanical chamber that houses the compressor that constitutes the refrigeration cycle of the air conditioner, and the second outlet of the damper device may be connected to the mechanical chamber.

[0044] For example, the second outlet of the damper device may open horizontally and communicate with an isolation chamber located in the second housing, with a connection port in the bottom plate of the isolation chamber communicating with the first housing.

[0045] For example, the second outlet of the damper device can be opened inside the second housing, and the bottom plate inside the second housing can be provided with a connection port that communicates with the first housing. The pipe connecting the second outlet and the connection port can be installed inside the second housing.

[0046] For example, the second outlet of the damper device may open downwards and communicate with an isolation chamber located in the second housing. A connection port communicating with the first housing may be provided on the bottom plate of the isolation chamber opposite to the second outlet.

[0047] For example, the opening direction of the first flow outlet can be opposite to the opening direction of the flow inlet.

[0048] (Implementation Method)

[0049] Hereinafter, one embodiment of the present invention will be described with reference to the accompanying drawings.

[0050] Figure 1 This is a schematic diagram showing the structure of an air conditioner 10 according to one embodiment of the present invention.

[0051] like Figure 1As shown, the air conditioner 10 of this embodiment has an indoor unit 20 disposed in the indoor Rin where the air-conditioned object is located, and an outdoor unit 30 disposed in the outdoor Rout.

[0052] The indoor unit 20 is equipped with: an indoor heat exchanger 22 that exchanges heat with indoor air A1; and a fan 24 that draws indoor air A1 into the indoor unit 20 and blows the indoor air A1 after heat exchange with the indoor heat exchanger 22 out to the indoor Rin.

[0053] The outdoor unit 30 includes an outdoor heat exchanger 32 that exchanges heat with outdoor air A2, and a fan 34 that draws outdoor air A2 into the outdoor unit 30 and blows the outdoor air A2 after heat exchange with the outdoor heat exchanger 32 out to the outdoor Rout. Additionally, the outdoor unit 30 includes a compressor 36, an expansion valve 38, and a four-way valve 40 that perform a refrigeration cycle with the indoor heat exchanger 22 and the outdoor heat exchanger 32.

[0054] The indoor heat exchanger 22, outdoor heat exchanger 32, compressor 36, expansion valve 38, and four-way valve 40 are connected by refrigerant piping. In cooling and dehumidification (weak cooling) operation, the air conditioner 10 executes a refrigeration cycle in which refrigerant flows from compressor 36 through four-way valve 40, outdoor heat exchanger 32, expansion valve 38, indoor heat exchanger 22, and back to compressor 36. In heating operation, the air conditioner 10 executes a refrigeration cycle in which refrigerant flows from compressor 36 through four-way valve 40, indoor heat exchanger 22, expansion valve 38, outdoor heat exchanger 32, and back to compressor 36.

[0055] In addition to performing air conditioning operation based on the refrigeration cycle, the air conditioner 10 also performs air conditioning operation that introduces outdoor air A3 into the indoor unit Rin. Therefore, the air conditioner 10 has a ventilation device 50. The ventilation device 50 is installed in the outdoor unit 30. That is, the outdoor unit 30 has a ventilation device 50.

[0056] Figure 2 This is a schematic diagram showing the structure of the ventilation device 50.

[0057] like Figure 2 As shown, the ventilation device 50 has an absorbent material 52 inside for outdoor air A3 and A4 to pass through.

[0058] The absorbent material 52 is a component through which air can pass, and it is used to capture moisture from or impart moisture to the passing air. In this embodiment, the absorbent material 52 is disc-shaped and rotates around a rotation center line C1 passing through its center. The absorbent material 52 is driven to rotate by an electric motor 54.

[0059] The absorbent material 52 is preferably formed of a polymeric adsorbent material that adsorbs moisture from the air. For example, the polymeric adsorbent material is composed of cross-linked sodium polyacrylate. Compared to adsorbent materials such as silica gel and zeolite, the polymeric adsorbent material absorbs more moisture per unit volume, can remove the retained moisture at a lower heating temperature, and can retain moisture for a longer period of time.

[0060] The ventilation device 50 is provided with a first flow path P1 and a second flow path P2 that pass through the absorbent material 52 respectively, and outdoor air A3 and A4 flow through the first flow path P1 and the second flow path P2 respectively.

[0061] The first flow path P1 and the second flow path P2 pass through the absorbent material 52 at different positions.

[0062] The first flow path P1 is the flow path through which outdoor air A3 flows into the indoor unit 20. The outdoor air A3 flowing through the first flow path P1 is supplied to the indoor unit 20 via the ventilation duct 56.

[0063] In this embodiment, the first flow path P1 includes multiple branch flow paths P1a and P1b on the upstream side of the absorbent material 52. Furthermore, in this specification, the terms "upstream" and "downstream" are used to refer to the airflow.

[0064] Multiple branch paths P1a and P2a converge on the upstream side of the absorbent material 52. Each branch of the multiple branch paths P1a and P1b is equipped with a first heater 58 and a second heater 60 for heating outdoor air A3.

[0065] The first and second heaters 58 and 60 can be heaters with the same heating capacity or heaters with different heating capacities. Furthermore, the first and second heaters 58 and 60 are preferably PTC (Positive Temperature Coefficient) heaters, which increase resistance when current flows and the temperature rises, thus suppressing excessive (overheating) temperature increases. Heaters utilizing nickel-chromium alloy wire, carbon fiber, etc., can also be used, but in these cases, the heating temperature (surface temperature) continuously rises when current continues to flow, therefore, monitoring of this temperature is necessary. On the other hand, in the case of a PTC heater, since the heater itself regulates the heating temperature within a certain temperature range, monitoring of the heating temperature is unnecessary. In this respect, a PTC heater is more preferred.

[0066] A first fan 62 is provided in the first flow path P1 to generate airflow of outdoor air A3 to the indoor unit 20. In this embodiment, the first fan 62 is positioned downstream of the absorbent material 52. When the first fan 62 operates, outdoor air A3 flows into the first flow path P1 from the outdoor Rout and passes through the absorbent material 52.

[0067] Additionally, a damper device 64 is provided in the first flow path P1 to distribute outdoor air A3 flowing through the first flow path P1 to the indoor Rin (i.e., indoor unit 20) or the outdoor Rout. In this embodiment, the damper device 64 is located downstream of the first fan 62. The outdoor air A3 distributed to the indoor unit 20 by the damper device 64 enters the indoor unit 20 via the ventilation duct 56 and is blown out to the indoor Rin by the fan 24.

[0068] The second flow path P2 is the flow path for outdoor air A4. Unlike outdoor air A3 flowing through the first flow path P1, outdoor air A4 flowing through the second flow path P2 does not go to the indoor unit 20. After passing through the absorbent material 52, the outdoor air A4 flowing through the second flow path P2 flows out to the outdoor Rout.

[0069] A second fan 66 is provided in the second flow path P2 to generate airflow of outdoor air A4. In this embodiment, the second fan 66 is located downstream of the absorbent material 52. With the operation of the second fan 66, outdoor air A4 flows into the second flow path P2 from the outdoor route, passes through the absorbent material 52, and then flows out to the outdoor route.

[0070] The ventilation device 50 selectively uses absorbent material 52 (motor 54), first heater 58, second heater 60, first fan 62, damper device 64, and second fan 66 to selectively perform ventilation operation, humidification operation, and dehumidification operation.

[0071] Figure 3 This is a schematic diagram showing the operating state of the ventilation device 50 during ventilation operation.

[0072] The ventilation operation is an air conditioning operation that directly supplies outdoor air A3 to indoor air Rin (i.e., indoor unit 20) through ventilation duct 56. For example... Figure 3 As shown, during ventilation operation, the motor 54 continuously rotates the absorbent material 52. The first heater 58 and the second heater 60 are in the OFF state, and do not heat the outdoor air A3. The first fan 62 is in the ON state, thus allowing outdoor air A3 to circulate within the first flow path P1. The damper device 64 distributes the outdoor air A3 within the first flow path P1 to the indoor unit 20. The second fan 66 is in the OFF state, thus no airflow of outdoor air A4 is generated within the second flow path P2.

[0073] According to this ventilation operation, outdoor air A3 flows into the first flow path P1 and passes through the absorbent material 52 without being heated by the first and second heaters 58 and 60. After passing through the absorbent material 52, the outdoor air A3 is distributed to the indoor unit 20 by the damper device 64. The outdoor air A3 that has passed through the damper device 64 and reached the indoor unit 20 via the ventilation duct 56 is blown into the indoor unit Rin by the fan 24. Through this ventilation operation, outdoor air A3 is directly supplied to the indoor unit Rin, and the indoor unit Rin is ventilated.

[0074] Figure 4 This is a schematic diagram showing the operating status of the ventilation device 50 during humidification operation.

[0075] Humidification operation is the air conditioning operation that humidifies outdoor air A3 and then supplies the humidified outdoor air A3 to indoor air Rin (i.e., indoor unit 20). For example... Figure 4 As shown, during humidification operation, the motor 54 continuously rotates the absorbent material 52. The first heater 58 and the second heater 60 are in the ON (connected) state, heating the outdoor air A3. The first fan 62 is in the ON state, thus allowing outdoor air A3 to circulate within the first flow path P1. The damper device 64 distributes the outdoor air A3 within the first flow path P1 to the indoor unit 20. The second fan 66 is in the ON state, thus allowing outdoor air A4 to circulate within the second flow path P2.

[0076] According to this humidification operation, outdoor air A3 flows into the first flow path P1, is heated by the first and second heaters 58 and 60, and passes through the absorbent material 52. At this time, compared to the unheated case, the heated outdoor air A3 can absorb a greater amount of moisture from the absorbent material 52. Thus, the outdoor air A3 retains a large amount of moisture. The outdoor air A3, retaining a large amount of moisture after passing through the absorbent material 52, is distributed to the indoor unit 20 by the damper device 64. The outdoor air A3, which reaches the indoor unit 20 through the damper device 64 and via the ventilation duct 56, is blown into the indoor unit Rin by the fan 24. Through this humidification operation, the outdoor air A3, retaining a large amount of moisture, is supplied to the indoor unit Rin, and the indoor unit Rin is humidified.

[0077] In addition, it can also perform a weak humidification operation by reducing the amount of moisture that the outdoor air A3 takes from the absorbent material 52, i.e., the amount of humidification of indoor Rin, by setting either the first heater 58 or the second heater 60 to the OFF state.

[0078] As moisture is absorbed by the heated outdoor air A3, the moisture retention of the absorbent material 52 decreases, meaning the absorbent material 52 becomes dry. When the absorbent material 52 is dry, the outdoor air A3 flowing through the first flow path P1 cannot absorb moisture from the absorbent material 52. As a countermeasure, the absorbent material 52 absorbs moisture from the outdoor air A4 flowing through the second flow path P2. Thus, the moisture retention of the absorbent material 52 is maintained at approximately a constant level, enabling continuous humidification operation.

[0079] Figure 5 This is a schematic diagram showing the operating status of the ventilation device 50 during dehumidification operation.

[0080] Dehumidification operation involves dehumidifying outdoor air A3 and then supplying the dehumidified outdoor air A3 to indoor unit Rin (i.e., indoor unit 20). For example... Figure 5 As shown, during dehumidification operation, adsorption operation and regeneration operation are performed alternately.

[0081] The adsorption operation involves the absorbent material 52 adsorbing the moisture retained in the outdoor air A3, thereby dehumidifying the outdoor air A3. For example... Figure 5 As shown, during adsorption operation, the motor 54 continuously rotates the absorbent material 52. The first heater 58 and the second heater 60 are in the OFF state, and do not heat the outdoor air A3. The first fan 62 is in the ON state, thereby allowing the outdoor air A3 to circulate in the first flow path P1. The damper device 64 distributes the outdoor air A3 in the first flow path P1 to the indoor unit 20. The second fan 66 is in the OFF state, thereby preventing the generation of outdoor air A4 airflow in the second flow path P2.

[0082] According to this adsorption operation, outdoor air A3 flows into the first flow path P1 and passes through the absorbent material 52 without being heated by the first and second heaters 58 and 60. At this time, the moisture retained in the outdoor air A3 is adsorbed onto the absorbent material 52. As a result, the amount of moisture retained in the outdoor air A3 is reduced, that is, the outdoor air A3 is dried. The outdoor air A3 dried by passing through the absorbent material 52 is distributed to the indoor unit 20 by the damper device 64. The outdoor air A3 that has reached the indoor unit 20 through the damper device 64 and through the ventilation duct 56 is blown into the indoor unit Rin by the fan 24. Through this adsorption operation, the dried outdoor air A3 is supplied to the indoor unit Rin, and the indoor unit Rin is dehumidified.

[0083] As the adsorption operation continues, the water retention capacity of the absorbent material 52 continuously increases, resulting in a decrease in the absorbent material 52's ability to adsorb moisture retained in the outdoor air A3. In order to restore its adsorption capacity, a regeneration operation is performed to regenerate the absorbent material 52.

[0084] During regeneration operation, the motor 54 continuously rotates the absorbent material 52. The first heater 58 and the second heater 60 are in the ON state, heating the outdoor air A3. The first fan 62 is in the ON state, thus allowing the outdoor air A3 to circulate within the first flow path P1. The damper device 64 distributes the outdoor air A3 within the first flow path P1 to the outdoor Rout, but not to the indoor unit 20. The second fan 66 is in the OFF state, thus no airflow of outdoor air A4 is generated within the second flow path P2.

[0085] According to this regeneration operation, outdoor air A3 flows into the first flow path P1, is heated by the first and second heaters 58 and 60, and passes through the absorbent material 52. At this time, the heated outdoor air A3 absorbs a large amount of moisture from the absorbent material 52. Thus, a large amount of moisture is retained in the outdoor air A3. At the same time, the water retention of the absorbent material 52 decreases, that is, the absorbent material 52 dries, and its adsorption capacity is regenerated. The outdoor air A3, which retains a large amount of moisture through the absorbent material 52, is distributed to the outdoor Rout by the damper device 64 and discharged to the outdoor Rout. Thus, during the regeneration operation in the dehumidification operation, the outdoor air A3, which retains a large amount of moisture due to the regeneration of the absorbent material 52, is not supplied to the indoor Rin.

[0086] By alternating between this adsorption and regeneration operation, the adsorption capacity of the absorbent material 52 can be maintained, and dehumidification operation can continue.

[0087] The aforementioned air conditioning operations based on the refrigeration cycle (cooling operation, dehumidification operation (weak cooling operation), and heating operation) and air conditioning operations based on the ventilation device 50 (ventilation operation, humidification operation, and dehumidification operation) can be performed separately, or they can be performed simultaneously. For example, if the dehumidification operation based on the refrigeration cycle and the dehumidification operation based on the ventilation device 50 are performed simultaneously, the indoor temperature (Rin) can be dehumidified while maintaining a certain room temperature.

[0088] The air conditioning operation performed by air conditioner 10 is selected by the user. For example, through the user's settings... Figure 1 The remote control 70 shown performs a selection operation, and the air conditioner 10 executes the corresponding air conditioning operation. Furthermore, the air conditioner 10 includes a control device (not shown) that controls air conditioning operation based on the refrigeration cycle and air conditioning operation based on the ventilation device 50. The control device has a computer system with a processor and a memory. The computer system functions as a control device by executing a program stored in the memory through the processor. Here, the program executed by the processor is pre-recorded in the computer system's memory, but it can also be provided through a non-temporary recording medium such as a memory card, or through an electrical communication line such as the Internet.

[0089] This concludes the brief description of the structure and operation of the air conditioner 10 according to this embodiment. Next, further features of the air conditioner 10 according to this embodiment will be described.

[0090] Figure 6 This is a perspective view showing the appearance of the outdoor unit 30 of the air conditioner 10. Additionally, Figure 7 This is a perspective view showing the structure of the ventilation device 50 with the cover 104 removed. Furthermore, Figure 8 This is a top view showing the structure of the ventilation device 50 with the cover 104 removed. Furthermore, Figure 9 This is an exploded perspective view showing the structure of the ventilation device 50 with the cover 104 removed. Furthermore, Figure 10 This is a schematic cross-sectional view showing the structure of the ventilation device 50. The X-Y-Z orthogonal coordinate system shown in the attached figure is for ease of understanding of the implementation method and is not intended to limit the implementation method. The X-axis direction represents the front-to-back direction of the outdoor unit 30, the Y-axis direction represents the left-to-right direction, and the Z-axis direction represents the height direction (vertical direction).

[0091] like Figure 6 As shown, in this embodiment, the ventilation device 50 is provided on the upper part of the outdoor unit 30. Specifically, the ventilation device 50 is provided on the housing 100 of the main body of the outdoor unit 30, which houses the outdoor heat exchanger 32, fan 34, compressor 36, expansion valve 38 and four-way valve 40.

[0092] like Figure 6 - Figure 8 As shown, the ventilation device 50 is a roughly rectangular parallelepiped shape that is longer in the left-right direction (Y-axis direction) of the outdoor unit 30, including a box-shaped housing 102 that opens at the top and a cover 104 installed on the upper part of the housing 102. The components of the ventilation device 50, such as the absorbent material 52, are stored inside the housing 102. Furthermore, Figure 7 and Figure 8 The ventilation device 50 indicates that the cover 104 has been removed.

[0093] like Figure 7 - Figure 9 As shown, in this embodiment, the absorbent material 52 is disposed at the center of the ventilation device 50 in the left-right direction (Y-axis direction). On one side (right side) of the absorbent material 52 in the long side direction (i.e., the length direction), a component related to the first flow path P1 is disposed, and on the other side (left side), a component related to the second flow path P2 is disposed.

[0094] In addition, such as Figure 10 As shown, multiple spaces S1 to S4 are actually formed inside the housing 102 of the ventilation device 50.

[0095] The first space S1 is the space where outdoor air A3 first flows in. In addition, the first space S1 is actually formed in the right and upper parts of the shell 102.

[0096] The second space S2 is a space connected to the first space S1 via the absorbent material 52, and is the space in which outdoor air A3 from the first space S1 flows in through the absorbent material 52. In addition, the second space S2 is actually formed in the right and lower parts of the shell 102.

[0097] The third space S3 is the space where outdoor air A4 first flows in. In addition, the third space S3 is actually formed in the left and lower parts of the shell 102.

[0098] The fourth space S4 is a space connected to the third space S3 via the absorbent material 52, and is the space in which outdoor air A4 from the third space S3 flows in through the absorbent material 52. In addition, the fourth space S4 is actually formed in the left and upper parts of the shell 102.

[0099] Outdoor air A3 within the housing 102, configured as the first and second spaces S1 and S2, does not move into the third and fourth spaces S3 and S4. Conversely, outdoor air A4 within the housing 102, configured as the third and fourth spaces S3 and S4, does not move into the first and second spaces S1 and S2. That is, the third and fourth spaces S3 and S4 are independently configured from the first and second spaces S1 and S2 (i.e., the third and fourth spaces S3 and S4 are sealed from the first and second spaces S1 and S2).

[0100] First, the constituent elements of the ventilation device 50, which is related to the simple second flow path P2, will be explained.

[0101] In this embodiment, such as Figure 8 and Figure 9 As shown, regarding the second airflow path P2 for the outdoor air A4, the housing 102 of the ventilation device 50 is provided with a first air intake 102a, a second air intake 102b, and an exhaust port 102c. The first air intake 102a is formed at the center of the front wall 102d of the housing 102 in the left-right direction (Y-axis direction). The second air intake 102b is formed at the center of the rear wall 102e of the housing 102 in the left-right direction. Furthermore, the exhaust port 102c is formed on the left side of the front wall 102d.

[0102] When the second fan 66 operates, outdoor air A4 flows into the third space S3 within the housing 102 via the first air intake 102a and the second air intake 102b. Specifically, as... Figure 10 As shown, outdoor air A4 flows into the third space S3 between the bottom plate 102f of the housing 102 and the second end face 52b of the absorbent material 52.

[0103] Outdoor air A4 in the third space S3 flows into the absorbent material 52 via the second end face 52b and flows out from the absorbent material 52 into the fourth space S4 via the first end face 52a. The outdoor air A4 flowing into the fourth space S4 through the absorbent material 52 is drawn in by the second fan 66. In this embodiment, the second fan 66 is a Schirok fan, consisting of an impeller 66a disposed within the fan chamber F1 and rotating around a rotation centerline extending in the vertical direction (Z-axis direction), and a motor 66b that rotates the impeller 66a. Outdoor air A4 is drawn into the fan chamber F1 due to the rotation of the impeller 66a and discharged to the outside through the exhaust port 102c communicating with the fan chamber F1. Furthermore, the fan chamber F1 is defined by a housing 102 and a partition 106 separating the third space S3 and the fourth space S4. An air intake port 106a communicating with the fan chamber F1 and allowing outdoor air A4 to pass through is formed in the partition 106.

[0104] Next, the constituent elements of the ventilation device 50 related to the first flow path P1 will be described.

[0105] In this embodiment, such as Figure 8 and Figure 9 As shown, regarding the first flow path P1 for the circulation of outdoor air A3, a third air intake 102g and a fourth air intake 102h are provided in the housing 102 of the ventilation device 50. The third air intake 102g is formed on the right wall 102i of the housing 102. In addition, the fourth air intake 102h is formed on the right side of the rear wall 102e of the housing 102.

[0106] When the first fan 62 is working, outdoor air A3 flows into the first space S1 inside the housing 102 through the third air intake 102g and the fourth air intake 102h. The outdoor air A3 flowing into the first space S1 passes through the first and second heaters 58 and 60 and flows above the first end face 52a of the absorbent material 52.

[0107] In this embodiment, the first and second heaters 58 and 60 are installed in the heater unit 110 located in the center of the ventilation device 50.

[0108] Figure 11 This is a perspective view showing the structure of the heater unit 110. Additionally, Figure 12 This is a bottom view showing the structure of the heater unit 110. Furthermore, Figure 13 This is an exploded perspective view showing the structure of the heater unit 110. Furthermore, Figure 14 It means along Figure 12 A schematic cross-sectional view of the structure of heater unit 110 for line A-A.

[0109] like Figure 11 - Figure 14 As shown, the heater unit 110 includes a heater base component 112 that holds the first and second heaters 58 and 60. The heater base component 112 includes a generally triangular heater mounting portion 112a that holds the first and second heaters 58 and 60, and a cylindrical absorbent material storage portion 112b that rotatably houses the absorbent material 52. Furthermore, the heater mounting portion 112a and the absorbent material storage portion 112b of the heater base component 112 can also be configured as separate components.

[0110] The first and second heaters 58 and 60 are arranged in a "H" shape on the heater mounting portion 112a of the heater base component 112. Outdoor air A3 (i.e., branch paths P1a and P2b) passing through the first heater 58 and the second heater 60 respectively converges at the first end face 52a of the absorbent material 52 housed in the absorbent material housing portion 112b of the heater base component 112. That is, branch paths P1a and P1b merge with the main flow path P1c in the first flow path P1. Furthermore, the first and second heaters 58 and 60 are plate heaters having multiple heating elements that transfer heat to the outdoor air A3 flowing through branch paths P1a and P2a.

[0111] In this embodiment, the ventilation device 50 includes an absorbent material holder 114 that holds a disc-shaped absorbent material 52 having a first end face 52a and a second end face 52b. The absorbent material holder 114 includes: a cylindrical portion 114a that holds the outer peripheral surface 52c of the absorbent material 52; and a hub portion 114b rotatably supported on the support shaft 102j (see reference). Figure 10 The support shaft 102j is erected on the base plate 102f of the housing 102 of the ventilation device 50. Additionally, the absorbent material holder 114 includes multiple spoke portions 114c connecting the cylindrical portion 114a and the hub portion 114b. The multiple spoke portions 114c support the second end face 52b of the absorbent material 52.

[0112] An absorbent retainer 114, which holds the absorbent 52, is housed in the absorbent storage portion 112b of the heater base component 112. Furthermore, a locking portion 112c is provided at the center of the absorbent storage portion 112b of the heater base component 112, which engages with the support shaft 102j of the housing 102 through which the hub portion 114b of the absorbent retainer 114 passes. Multiple beam portions 112d, connecting the cylindrical absorbent storage portion 112b and the locking portion 112c located at its center, are provided on the heater base component 112.

[0113] In addition, such as Figure 9As shown, on the outer peripheral surface of the cylindrical portion 114a of the absorbent material holder 114, there are external teeth 114d that engage with the pinion 116 mounted on the motor 54.

[0114] The absorbent material 52 is rotated by the electric motor 54 via the absorbent material retainer 114.

[0115] In addition, such as Figure 13 As shown, the heater unit 110 includes a portion of the first end face 52a of the absorbent material 52 through which outdoor air A3 passes, a first cover member 118 of the first heater 58, and a second cover member 120 of the second heater 60. The first cover member 118 and the second cover member 120 are supported by the heater mounting portion 112a and a plurality of beam portions 112d of the heater base member 112. As a result, the first cover member 118 covers the first and second heaters 58 and 60, and when viewed from above (viewed in the Z-axis direction), it covers a portion of the first end face 52a of the absorbent material 52 surrounded by the heater mounting portion 112a and the beam portions 112d. The second cover member 120 covers the first cover member 118 with a gap between it and the first cover member 118. Furthermore, in this embodiment, the first cover member 118 is made of resin material, and the second cover member 120 is made of metal material. Using such a first cover component 118 and a second cover component 120, outdoor air A3 after the first heater 58 and the second heater 60 passes through a portion of the first end face 52a of the absorbent material 52 covered by the first cover component 118 and the second cover component 120.

[0116] like Figure 14 As shown, the first heater 58 and the second heater 60 are mounted on the heater mounting section 112a such that the direction of passage of outdoor air A3 is horizontal (X-axis direction). The first cover member 118 covers the upper part of the first heater 58 and the second heater 60 such that outdoor air A3 can pass through the first heater 58 and the second heater 60 in a horizontal direction.

[0117] The second cover member 120 includes a top plate portion 120a covering the first cover member 118, and a wall portion 120b extending downward from the outer periphery of the top plate portion 120a. The top plate portion 120a is spaced apart from the first cover member 118 in the height direction (Z-axis direction). In addition, the wall portion 120b is spaced apart from the first heater 58 and the second heater 60 in the horizontal direction.

[0118] Furthermore, in this embodiment, such as Figure 14As shown, a bottom cover component 122 is mounted on the lower part of the heater mounting portion 112a of the heater base component 112. The bottom cover component 122 includes a bottom plate portion 122a mounted on the heater mounting portion 112a and a wall portion 122b extending from the bottom plate portion 122a in the height direction (Z-axis direction). The wall portion 122b extends between the first heater 58 and the second heater 60 and the wall portion 120b of the second cover component 120.

[0119] With this second cover component 120 and bottom cover component 122, outdoor air A3 flows upward through the gap between the wall portion 120b of the second cover component 120 and the wall portion 122b of the bottom cover component 122. Then, the outdoor air A3 flows horizontally (X-axis direction) over the bottom plate portion 122a, passing over the wall portion 122b of the bottom cover component 122, and then reaches the first heater 58 and the second heater 60. Through this airflow of outdoor air A3 (i.e., branch paths P1a, P1b), gravity can remove dust and other foreign matter accompanying the outdoor air A3 before it reaches the first heater 58 and the second heater 60. Furthermore, the distance D of the gap between the wall portion 120b of the second cover component 120 and the wall portion 122b of the bottom cover component 122 is a size that prevents insects and other organisms from entering, for example, 8 mm or less. This suppresses biological intrusion into the first heater 58 and the second heater 60.

[0120] like Figure 14 As shown, outdoor air A3 flows through the gap between the top plate portion 120a of the first cover member 118 and the second cover member 120. That is, the gap between the first cover member 118 and the second cover member 120 functions as a connecting path P1d that connects the portion of branch path P1a located upstream of the first heater 58 and the portion of branch path P1b located upstream of the second heater 60. In this embodiment, the flow path length from the first heater 58 to the first fan 62 is shorter than the flow path length from the second heater 60 to the first fan 62. Therefore, the flow velocity of outdoor air A3 at the first heater 58 is faster than the flow velocity at the second heater 60. As a result, as... Figure 14 As shown, a portion of the outdoor air A3 that flows through the branch path P1b located upstream of the second heater 60 flows through the connecting path P1d and into the branch path P1a, and then passes through the first heater 58.

[0121] The reason for setting up such a connecting path P1d is to effectively utilize the heat dissipation H of the first heater 58 and the second heater 60. Specifically, a large portion of the heat generated by the first heater 58 and the second heater 60 is used to heat the outdoor air A3 passing through them. However, a portion of the generated heat is transferred to the surroundings of the first heater 58 and the second heater 60, especially to the area above the first heater 58 and the second heater 60, but not to the outdoor air A3 passing through the first heater 58 and the second heater 60.

[0122] In this embodiment, the waste heat H from the first heater 58 and the second heater 60 is transferred to the outdoor air A3 flowing through the connecting passage P1d. The outdoor air A3, heated by this waste heat H, passes through the first heater 58 or the second heater 60, and then through the absorbent material 52. Thus, the waste heat H from the first heater 58 and the second heater 60 is recovered through the outdoor air A3 flowing through the connecting passage P1d, improving the efficiency of heating the outdoor air A3 by the first and second heaters 58 and 60. As a result, the amount of humidified outdoor air A3 (the amount of moisture obtained from the absorbent material 52) increases, and the efficiency of humidification operation (humidification efficiency of indoor Rin) or regeneration operation in dehumidification operation (regeneration efficiency of the absorbent material 52) is improved.

[0123] Furthermore, the connecting path P1d for heat recovery is not limited to above the first heater 58 and the second heater 60, but can also be located below them. The connecting path P1d only needs to pass through the vicinity of the first heater 58 and the second heater 60, that is, the area where the heat dissipation H of the first heater 58 and the second heater 60 is transferred.

[0124] Outdoor air A3 heated by at least one of the first heater 58 and the second heater 60, such as Figure 10 As shown, the material flows downward from the first end face 52a to the second end face 52b, passing through the absorbent material 52 and entering the second space S2.

[0125] Figure 15 This is a top view showing a portion of the peripheral structure of the housing 102 of the ventilation device 50 in the second space S2.

[0126] like Figure 15 As shown, an annular wall portion 102k extending along the height direction (Z-axis direction) is formed on the bottom plate 102f of the housing 102. A partition plate 124 (see reference) separating the first space S1 and the second space S2 is disposed on top of this annular wall portion 102k. Figure 10The second space S2 is defined by the annular wall portion 102k and the partition plate 124 of the housing 102. In addition, a sealing unit, described later, is installed on the portion 102l of the annular wall portion 102k located below the absorbent material 52 to seal between the annular wall portion 102k and the absorbent material 52.

[0127] Figure 16 It is a schematic cross-sectional view showing a portion of the peripheral structure of the absorbent material 52 that is radially orthogonal to the absorbent material 52.

[0128] like Figure 16 As shown, the ventilation device 50 is provided with a plurality of first sealing units 126 for the first end face 52a of the absorbent material 52 and a plurality of second sealing units 128 for the second end face 52b of the absorbent material 52. In this embodiment, the first sealing units 126 are provided on a plurality of beam portions 112d of the heater base member 112 opposite to the first end face 52a of the absorbent material 52. The second sealing units 128 are provided on portions 102l of the annular wall portion 102k of the housing 102 opposite to the second end face 52b of the absorbent material 52.

[0129] The plurality of first sealing units 126 include: a sealing member 126a that contacts a first end face 52a of the absorbent material 52 in the height direction (Z-axis direction); and a sealing member retainer 126b that holds the sealing member 126a and is mounted on the heater base member 112. The sealing member 126a extends radially along the disc-shaped absorbent material 52 and contacts the first end face 52a of the absorbent material 52. In this embodiment, the sealing member 126a is a brush. However, the sealing member 126a is not limited to a brush as long as it can slide on the first end face 52a of the rotating absorbent material 52. The sealing member 126a may also be an elastic member such as flexible silicone rubber.

[0130] By using such a first sealing unit 126, it is possible to prevent outdoor air A3 flowing through the first flow path P1, specifically a portion of the outdoor air A3 flowing through the first cover component 118, from intruding into the second flow path P2 (i.e., the fourth space S4). Conversely, it is also possible to prevent outdoor air A4 flowing through the second flow path P2 from intruding into the first flow path P1.

[0131] The plurality of second sealing units 128 include: a sealing member 128a that contacts the second end face 52b of the absorbent material 52 in the height direction (Z-axis direction); and a sealing member retainer 128b that retains the sealing member 128a and is mounted on the housing 102. The sealing member 128a extends radially along the disc-shaped absorbent material 52 and extends parallel to the sealing member 126a of the first sealing unit 126, and contacts the second end face 52b of the absorbent material 52. In this embodiment, the sealing member 128a is a brush. However, the sealing member 128a is not limited to a brush as long as it can slide relative to the second end face 52b of the rotating absorbent material 52. The sealing member 128a may also be an elastic member such as flexible silicone rubber. In addition, the sealing member 128a may be different from or the same as the sealing member 126a of the first sealing unit 126.

[0132] By employing such a second sealing unit 128, it is possible to prevent a portion of the outdoor air A3 flowing through the first flow path P1, specifically the outdoor air A3 flowing into the second space S2 from the second end face 52b of the absorbent material 52, from intruding into the second flow path P2 (i.e., the third space S3). Conversely, it is also possible to prevent outdoor air A4 flowing through the second flow path P2 from intruding into the first flow path P1.

[0133] Furthermore, in this embodiment, such as Figure 12 As shown, multiple spoke portions 114c of the absorbent material holder 114 are present on the second end face 52b of the absorbent material 52 in contact with the second sealing unit 128 (its sealing member 128a). Therefore, during the rotation of the absorbent material holder 114, the sealing member 128a needs to pass over the multiple spoke portions 114c.

[0134] At this time, when all the sealing components 128a pass the spoke portion 114c at the same time, the rotational resistance of the absorbent material holder 114 increases. As a result, the motor 54 that rotates the absorbent material holder 114 experiences an intermittent torque load.

[0135] Therefore, the spoke portion 114c extends in such a way that all the sealing members 128a do not pass over the spoke portion 114c at the same time. Specifically, the sealing members 128a actually extend radially along the absorbent material 52, while the spoke portion 114c does not actually extend radially along the absorbent material 52. As a result, for example, when the end of the sealing member 128a on the center side of the absorbent material 52 is located on the spoke portion 114c, the outer end of the sealing member 128a is not located on the spoke portion 114c. Through this difference in extension direction, all the sealing members 128a do not pass over the spoke portion 114c simultaneously, but only partially at a time. As a result, the load on the motor 54 can be reduced.

[0136] In addition, such as Figure 16 As shown, a collision plate 112e extending away from the first sealing unit 126 is provided on the beam portion 112d of the heater base component 112 where the first sealing unit 126 is located. The collision plate 112e extends above a portion of the first end face 52a of the absorbent material 52 from which outdoor air A4 flows out. As a result, the outdoor air A4 passing through the absorbent material 52 near the first sealing unit 126 collides with the collision plate 112e. A comparative example is given to illustrate this "collision plate".

[0137] Figure 17 This is a schematic cross-sectional view showing the peripheral structure of a portion of the absorbent material 52 that is radially orthogonal to the absorbent material 52 in the ventilation device of the comparative example.

[0138] like Figure 17 As shown, in the comparative example ventilation device, there is no impact plate 112e protruding from the second flow path P2 in a manner away from the first sealing unit 126. In this case, a portion of the outdoor air A3 before flowing into the absorbent material 52 after passing through the first heater 58 and the second heater 60 may intrude into the second flow path P2. Specifically, a portion of the outdoor air A3 may intrude into the second flow path P2 through the space between the sealing member 126a and the absorbent material 52.

[0139] The passage of outdoor air A3 between the sealing member 126a and the absorbent material 52 occurs due to the ventilation resistance of the absorbent material 52, i.e., the pressure loss caused by the passage through the absorbent material 52. Specifically, the pressure in the portion of the first flow path P1 (i.e., space S5) upstream of the absorbent material 52 is the pressure before the pressure loss occurs due to the absorbent material 52. In contrast, the pressure in the portion of the second flow path P2 (i.e., fourth space S4) downstream of the absorbent material 52 is the pressure after the pressure loss occurs through the absorbent material 52. That is, the pressure in space S5 is higher than the pressure in space S4 by an amount corresponding to the absence of the absorbent material 52. Due to this pressure difference, outdoor air A3 may pass between the sealing member 126a and the absorbent material 52. As a result, the relatively high-pressure outdoor air A3, heated by the first heater 58 and the second heater 60, may intrude into the relatively low-pressure second flow path P2 through the space between the sealing member 126a and the absorbent material 52.

[0140] Thus, if part of the heated outdoor air A3, becoming high-temperature air, enters the second flow path P2 without passing through the absorbent material 52, the amount of moisture absorbed by the outdoor air A3 from the absorbent material 52 is reduced. That is, the efficiency of the humidification operation (humidification efficiency of indoor Rin) decreases. As a countermeasure, in this embodiment, such as... Figure 16As shown, there is a collision plate 112e that protrudes from the first sealing unit 126 into the second flow path P2.

[0141] like Figure 16 As shown, outdoor air A4 flowing near the first sealing unit 126 exits from the first end face 52a of the absorbent material 52 and collides with the collision plate 112e. This creates a high-pressure region AP with turbulence between the first end face 52a of the absorbent material 52 and the collision plate 112e. Due to this high-pressure region AP, the pressure difference across the sealing member 126a decreases. As a result, it is possible to prevent outdoor air A3 from intruding into the second flow path P2 through the space between the sealing member 126a and the absorbent material 52.

[0142] In this embodiment, a throttling wall 112f extending toward the first end face 52a of the absorbent material 52 is provided at the front end of the impact plate 112e (the end away from the first sealing unit 126). This forms a substantially closed space surrounded by the sealing member 126a, the impact plate 112e, the first end face 52a of the absorbent material 52, and the throttling wall 112f, creating a high-pressure region AP with higher pressure within this space. As a result, compared to the case without the throttling wall 112f, the intrusion of outdoor air A3 into the second flow path P2 via the space between the sealing member 126a and the absorbent material 52 can be further suppressed.

[0143] In addition, such as Figure 16 As shown, the sealing component 126a of the first sealing unit 126 and the sealing component 128a of the second sealing unit 128 are in contact with the absorbent material 52 in directions orthogonal to the first end face 52a and the second end face 52b of the absorbent material 52, respectively. However, the embodiments of the present invention are not limited thereto.

[0144] Figure 18 This is a schematic cross-sectional view showing the peripheral structure of a portion of the absorbent material 52 that is radially orthogonal to the absorbent material 52 in a ventilation device according to different embodiments.

[0145] like Figure 18 As shown, in the ventilation devices of different embodiments, sealing members 126a and 128a contact the absorbent material 52 while being inclined relative to the first end face 52a and the second end face 52b, respectively. Specifically, in a state where they are inclined toward the absorbent material 52 from the upstream side to the downstream side along the rotation direction DR of the absorbent material 52, the sealing members 126a and 128a are held by the sealing member retainers 226b and 228b. In this case, with Figure 16 Compared to the embodiment shown, the sliding resistance between the sealing components 126a, 128a and the absorbent material 52 is reduced, thus reducing the load on the motor 54.

[0146] Alternatively, when the rotation direction of the absorbent material 52 is switched, the sealing members 126a and 128a are held by the sealing member retainer so that they can oscillate around the rotation center line extending radially along the absorbent material 52.

[0147] Alternatively, the rotational speeds of the first fan 62 and the second fan 66 can be adjusted so that outdoor air A3 or outdoor air A4 does not pass between the sealing component 126a and the first end face 52a, or between the sealing component 128a and the second end face 52b. For example, when the rotational speeds of the first fan 62 and the second fan 66 increase, the pressure in the first flow path P1 and the second flow path P2 decreases. Conversely, when the rotational speeds decrease, the pressure increases.

[0148] For example, when at least one of the first heater 58 and the second heater 60 is ON, the speed of the first fan 62 is increased to reduce the pressure in the first flow path P1 and / or the speed of the second fan 66 is reduced to increase the pressure in the second flow path P2. This further suppresses the passage of heated outdoor air A3 between the sealing member 126a of the first sealing unit 126 and the absorbent material 52.

[0149] As a sealing element related to the absorbent material 52, in addition to including the first sealing unit 126 and the second sealing unit 128, such as Figure 13 As shown, the ventilation device 50 also includes a labyrinth seal component 130.

[0150] Figure 19 This is a schematic cross-sectional view of the absorbent material holder 114, which is formed on the outside of the absorbent material holder 114, in the form of a labyrinthine flow path PL.

[0151] like Figure 19 As shown, the outer peripheral surface of the cylindrical portion 114a of the absorbent holder 114 is spaced apart from the absorbent receiving portion 112b and the partition 124 of the heater base component 112 for rotation. Therefore, a portion of the outdoor air A3 that should pass through the absorbent 52 may flow outside the cylindrical portion 114a and bypass the absorbent 52. When the outdoor air A3 is heated by at least one of the first heater 58 and the second heater 60, the amount of moisture that the outdoor air A3 absorbs from the absorbent 52 is reduced when such bypassing occurs. That is, the efficiency of humidification operation (humidification efficiency of indoor Rin) or the efficiency of regeneration operation in dehumidification operation (regeneration efficiency of absorbent 52) ​​is reduced. Therefore, in this embodiment, a labyrinthine flow path PL is formed between the absorbent holder 114 and the components opposite it (heater base component 112 and partition 124) using the labyrinthine sealing component 130. Among them, labyrinthine flow path (PL) refers to a flow path with high flow resistance due to its shape that causes the flow direction of the fluid to change multiple times.

[0152] The labyrinth seal member 130 has an end face 130a that forms a radial flow path PLA extending radially (in the Y-axis direction) along the absorbent material 52 as part of the labyrinth flow path PLA. Specifically, in this embodiment, the absorbent material holder 114 has external teeth 114d on the outer peripheral surface of its cylindrical portion 114a. Furthermore, the absorbent material holder 114 has an annular flange 114e disposed on the end face of the external teeth 114d on the side away from the first end face 52a of the absorbent material 52. The end face 130a of the labyrinth seal member 130 forms the radial flow path PLA between itself and the flange 114e.

[0153] By employing a labyrinthine flow path PL including such a radial flow path PLA, outdoor air A3 passes through the absorbent material 52 and is less likely to flow around the absorbent material 52 by passing over the outer side of the cylindrical portion 114a. As a result, it is possible to suppress the reduction in the efficiency of humidification operation (humidification efficiency of indoor Rin) or the efficiency of regeneration operation during dehumidification operation (regeneration efficiency of absorbent material 52) caused by outdoor air A3 bypassing the absorbent material 52.

[0154] Furthermore, in this embodiment, a protrusion 130b protruding toward the flange 114e of the absorbent material holder 114 is provided on the end face 130a of the labyrinth seal member 130. As a result, the flow resistance of the labyrinth flow path PL is further increased.

[0155] Furthermore, in this embodiment, a rib 124a is provided in the partition 124, which extends radially (Y-axis direction) along the absorbent material 52 in a manner that is spaced apart from the second end face 52b of the absorbent material 52. With this rib 124a, outdoor air A3 is less likely to flow out from the labyrinth flow path PL, resulting in a further increase in the flow resistance of the labyrinth flow path PL.

[0156] Furthermore, in this embodiment, a protrusion 124b is provided at the front end of the rib 124a of the partition 124, protruding toward the second end face 52b of the absorbent material 52. With this protrusion 124b, outdoor air A3 is less likely to flow out from the labyrinth flow path PL, resulting in a further increase in the flow resistance of the labyrinth flow path PL.

[0157] Furthermore, the labyrinthine flow path PL can be formed over the entire outer peripheral surface of the cylindrical portion 114a of the absorbent material holder 114, or it can be formed without covering the entire outer peripheral surface. The main purpose of the labyrinthine flow path PL is to prevent outdoor air A3, heated by at least one of the first heater 58 and the second heater 60, from bypassing the absorbent material 52, so that most of the outdoor air A3 passes through the absorbent material 52. Therefore, it is sufficient that the labyrinthine flow path PL exists at least on the outer side of the portion of the cylindrical portion 114a of the absorbent material holder 114 corresponding to the portion of the absorbent material 52 through which the heated outdoor air A3 passes. In addition, when the labyrinthine flow path PL is formed over the entire outer peripheral surface of the cylindrical portion 114a, it is also possible to prevent outdoor air A4 from bypassing the absorbent material 52 as it passes from the second end face 52b to the first end face 52a.

[0158] Furthermore, in this embodiment, the end face 130a of the labyrinth seal member 130 forms a radial flow path PLA between itself and the flange 114e of the absorbent material holder 114. The portion of the absorbent material holder 114 that cooperates with the end face 130a of the labyrinth seal member 130 to form the radial flow path PLA is not limited to the flange 114e. If the absorbent material holder 114 has an expanded diameter portion protruding radially outward, the end face 130a of the labyrinth seal member 130 can form a radial flow path PLA between itself and this expanded diameter portion. Furthermore, the flange 114e obstructs the flow of outdoor air A3 between the teeth of the external teeth 114d, thereby increasing the flow resistance of the labyrinth flow path PLA.

[0159] Outdoor air A3 flows into the second space S2 after passing through the absorbent material 52.

[0160] Figure 20 This is a schematic cross-sectional view showing the constituent elements surrounding the first fan 62.

[0161] like Figure 20 As shown, outdoor air A3 flowing through the first flow path P1, specifically into the second space S2, is drawn in by the first fan 62. In this embodiment, the first fan 62 is a Schirok fan, consisting of an impeller 62a and a motor 62b that rotates the impeller 62a. The impeller 62a is disposed in the fan chamber F2 and rotates around a rotation centerline extending in the vertical direction (Z-axis direction). Outdoor air A3 is drawn into the fan chamber F2 due to the rotation within the impeller 62a. The fan chamber F2 is defined by an annular wall 124c provided on the partition 124 and a fan shroud component 132 mounted on the annular wall 124c. An air intake 124d is formed in the partition 124, communicating with the fan chamber F2 and allowing outdoor air A3 to pass through.

[0162] In this embodiment, the motor 62b of the first fan 62 is disposed on the fan cover member 132 and covered by the motor cover member 134. That is, the motor 62b is housed in the motor chamber M1 defined by the fan cover member 132 and the motor cover member 134.

[0163] In this embodiment, the fan cover component 132 and the motor cover component 134 are configured such that outdoor air A3 flows into the motor compartment M1.

[0164] To explain in detail, when the first fan 62 rotates, as... Figure 8 and Figure 9 As shown, outdoor air A3 flows into the first space S1 through the third intake port 102g and the fourth intake port 102h. A portion of the outdoor air A3 flowing into the first space S1 passes directly through the first heater 58 and the second heater 60. The remaining air... Figure 20 The fluid flows into the motor chamber M1, cools the motor 62b, and then flows out of the motor chamber M1, passing through the first heater 58 and the second heater 60.

[0165] Multiple vertically extending barrier walls 132a and 134a are respectively provided on the fan shroud component 132 and the motor shroud component 134 to allow outdoor air A3 entering the motor chamber M1 to flow locally in the vertical direction (Z-axis direction). Using these barrier walls 132a and 134a, the outdoor air A3 flows vertically, and gravity removes foreign objects accompanying the outdoor air A3. As a result, it is possible to suppress the intrusion of foreign objects into the motor chamber M1.

[0166] Furthermore, a plurality of lintels 102m are provided at the fourth air intake 102h, which communicates with the first space S1, to suppress the intrusion of foreign objects. Moreover, an inclined surface 102o, higher on the first space S1 side, is formed on the upper surface 102n of at least one lintel 102m. This inclined surface 102o can suppress rainwater falling in a downward direction from entering the first space S1. In addition, the same lintels 102m are also provided at the first air intake 102a, the second air intake 102b, and the third air intake 102g.

[0167] Furthermore, the structure for suppressing rainwater intrusion is not limited to the inclined surface 102o.

[0168] Figure 21 This is a schematic cross-sectional view showing the structure of the fourth air intake 202h of the housing 202 in the ventilation device of different embodiments.

[0169] like Figure 21As shown, in the ventilation device of different embodiments, a plurality of lintels 202m are provided at the fourth air intake 202h of the housing 202. Each lintel 202m is provided with a downwardly extending portion 202p extending toward the other lintels 202m located below. With such a downwardly extending portion 202p, rainwater can also be prevented from entering the first space S1.

[0170] In this embodiment, such as Figure 10 and Figure 15 As shown, an orifice component 136 is provided in the portion of the first flow path P1 between the absorbent material 52 and the air intake 124d, i.e., the second space S2. The orifice component 136 is an obstruction used to locally reduce the cross-sectional area of ​​the flow path P1 between the absorbent material 52 and the air intake 124d. By providing the orifice component 136, the temperature distribution in the second space S2 is more uniform compared to the case where the orifice component 136 is not provided.

[0171] Specifically, in the second space S2, the outdoor air A3 after passing through the first heater 58 and the outdoor air A3 after passing through the second heater 60 are mixed and circulated simultaneously. Whether both the first heater 58 and the second heater 60 are ON or OFF, the temperature distribution within the second space S2 is essentially the same.

[0172] In comparison, the temperature distribution when only the first heater 58 is ON and the temperature distribution when only the second heater 60 is ON are different, and the differences between them are significant. Specifically, outdoor air A3, after the first heater 58 located at the rear of the ventilation device 50, flows through the rear portion of the second space S2, and outdoor air A3, after the second heater 60 located at the front, flows through the front portion of the second space S2. The outdoor air A3 flowing through the second space S2 begins to swirl (rotate) near the air intake 124d of the first fan 62, and in this state flows into the fan chamber F2 through the air intake 124d. At this time, for example, when only the rear first heater 58 is ON, the hotter outdoor air A3 flows through the rear portion of the second space S2, and the colder (unheated) outdoor air A3 flows through the front portion. When the outdoor air A3 swirls near the air intake 124d in this state, the detection accuracy of the temperature sensor 138, which measures the temperature of the outdoor air A3 in the second space S2, decreases. Among them, as Figure 9 As shown, temperature sensor 138 is disposed on partition 124.

[0173] like Figure 15As shown, the orifice component 136 is positioned upstream of the temperature sensor 138 in the portion of the first flow path P1 (second space S2) from the first and second heaters 58 and 60 to the air intake 124d. Furthermore, the orifice component 136 is arranged to traverse the second space S2. Therefore, as... Figure 10 As shown, outdoor air A3 after the first heater 58 and outdoor air A3 after the second heater 60 pass through the narrow gap between the orifice component 136 and the partition 124 and head towards the air intake 124d. Due to this gap and the eddies caused by the stripping flow generated after passing through the gap, the outdoor air A3 after the first heater 58 and outdoor air A3 after the second heater 60 are appropriately mixed. As a result, around the temperature sensor 138 located downstream of the orifice component 136, the temperature distribution when only the first heater 58 is ON and the temperature distribution when only the second heater 60 is ON are approximately the same. In addition, as a secondary effect, the orifice component 136 also has the effect of reducing the noise level leaked to the outdoor Rout by the first fan 62.

[0174] In addition, the orifice component 136 can also be other shapes.

[0175] Figure 22 This is a top view showing a portion of the housing 102 of the ventilation device in the second space S2 in different embodiments of the ventilation device.

[0176] like Figure 22 As shown, in different embodiments of the ventilation device, the orifice component 236 is only provided on the front side of the ventilation device and is not arranged to traverse the second space S2. In this case, the outdoor air A3 after the first heater 58 and the outdoor air A4 after the second heater 60 flow around the orifice component 236 when viewed upwards (viewed in the Z-axis direction). During this bypassing, the outdoor air A3 after the first heater 58 and the outdoor air A4 after the second heater 60 mix appropriately with each other. In this case, the outdoor air A3 flows slowly near the temperature sensor 138, and the measurement environment of the temperature sensor 138 is stable.

[0177] like Figure 20 As shown, outdoor air A3 flowing from the second space S2 into the fan chamber F2 of the first fan 62 is transported to the damper device 64 due to the rotation of the impeller 62a.

[0178] Figure 23A This is a cross-sectional view showing the damper device 64 connected to the indoor Rin. Additionally, Figure 23B This is a cross-sectional view of the damper device 64, showing its connection to the outdoor Rout.

[0179] In addition to Figure 23A and Figure 23B As shown, and also Figure 9 As shown, in this embodiment, the damper device 64 includes a portion of the partition 124 and a portion of the fan shroud component 132 as constituent elements of its housing. Furthermore, the damper device 64 includes an inlet 64a for receiving outdoor air A3 and a first outlet 64b communicating with the indoor unit 20 for receiving outdoor air A3. Additionally, the damper device 64 includes a second outlet 64c communicating with the outdoor Rout for receiving outdoor air A3, and a closing door 64d that selectively closes one of the first outlet 64b and the second outlet 64c. Moreover, the damper device 64 also includes a power source (not shown) such as an electric motor that drives the closing door 64d to rotate about a rotation centerline extending in the height direction (Z-axis direction) and is controlled by the control device of the air conditioner 10.

[0180] The inlet 64a of the damper device 64 is connected to the fan chamber F2 of the first fan 62. Thus, outdoor air A3 blown from the impeller 62a of the first fan 62 flows into the damper device 64 through the inlet 64a via the first heater 58, the second heater 60 and the absorbent material 52.

[0181] A ventilation duct 56 is connected to the first outlet 64b of the damper device 64. Thus, the first outlet 64b communicates with the indoor unit 20 via the ventilation duct 56. As a result, outdoor air A3 flows into the indoor unit 20 after passing through the inlet 64a. Furthermore, in this embodiment, the first outlet 64b opens to the right.

[0182] Furthermore, in this embodiment, the opening direction of the first outlet 64b of the damper device 64 is to the right, and the opening direction of the inlet 64a is to the left, which is the opposite. Therefore, the outdoor air A3 flowing into the inlet 64a flows out of the first outlet 64b without changing its flow direction. Thus, the outdoor air A3 can flow into the ventilation duct 56 without decelerating while maintaining the blowing speed of the first fan 62.

[0183] The second outlet 64c of the damper device 64 is indirectly connected to the outdoor Rout, rather than directly. Specifically, the second outlet 64c is located within an isolation chamber S6 disposed within the housing 102, and opens horizontally, particularly towards the rear wall 102e. The isolation chamber S6 is defined by the housing 102 and the fan shroud component 132, and is independent of the other spaces S1 to S4. Therefore, outdoor air A3 flowing out from the second outlet 64c flows into the isolation chamber S6.

[0184] A connection port 102q is provided on the bottom plate 102f of the housing 102 that defines the isolation chamber S6, which communicates with the housing 100 of the main body of the outdoor unit 30.

[0185] Figure 24 This is a three-dimensional cross-sectional view of the ventilation device 50, representing the airflow of outdoor air A3 exiting from the damper device 64. Additionally, Figure 25 This is a front view of the outdoor unit 30, which roughly shows the interior of the main body of the outdoor unit 30.

[0186] like Figure 24 As shown, the outdoor air A3 flowing out from the second outlet 64c of the damper device 64 to the rear changes its flow direction to downward in the isolation chamber S6 and passes through the connection port 102q provided on the bottom plate 102f of the housing 102.

[0187] like Figure 25 As shown, outdoor air A3 flows into the housing 100 of the outdoor unit 30 through the connection port 102q of the bottom plate 102f of the housing 102.

[0188] In this embodiment, the main body housing 100 is roughly divided into: a heat exchange chamber R1 that houses the outdoor heat exchanger 32, fan 34, etc.; and a mechanical chamber R2 that houses the compressor 36, four-way valve 40, control circuit board, etc. Outdoor air A3 flows into the mechanical chamber R2.

[0189] This explains why the outdoor air A3 flowing out from the second outlet 64c of the damper device 64 is discharged to the outside through the housing 100 of the main body of the outdoor unit 30.

[0190] like Figure 23B As shown, when the outdoor air A3 flows out from the second outlet 64c, it collides with the closed door 64d, effectively changing its flow direction by 90 degrees. At this time, turbulence is generated within the damper device 64, resulting in noise.

[0191] Here, assuming that an exhaust port with multiple lattice strips is provided on the rear wall 102e of the housing 102 opposite to the second outlet 64c, noise from turbulence leaks to the outdoor Rout via this exhaust port. Additionally, the operating noise of the closing door 64d also leaks to the outdoor Rout via this exhaust port. Furthermore, wind noise may be generated due to the lattice strips.

[0192] In this embodiment, when outdoor air A3 flowing out from the second outlet 64c flows into the housing 100 via the isolation chamber S6, it is possible to suppress the leakage of noise from turbulence and the operating sound of the closed door 64d to the outside Rout. That is, the internal space of the housing 100 functions as a "silencer" to reduce the level of noise generated by outdoor air A3 flowing through the damper device 64 and leaking to the outside Rout.

[0193] Especially when outdoor air A3 flows into the machine room R2, the noise level leaking to the outdoor Rout can be further reduced. The machine room R2 is a substantially enclosed space, connected to the outdoor Rout through a gap that allows heat generated from the compressor 36 and the like housed within this enclosed space to flow out to the outdoor Rout. On the other hand, the heat exchange chamber R1 is connected to the outdoor Rout through an intake port through which outdoor air A2 drawn in by the fan 34 passes and an exhaust port through which the outdoor air A2 after heat exchange flows out. Therefore, the way outdoor air A3 flows into the machine room R2 from the second outlet 64c of the damper device 64 reduces the noise level leaking to the outdoor Rout compared to the way it flows into the heat exchange chamber R1.

[0194] In this way, by using the damper device 64 to discharge outdoor air A3 to the outdoor Rout through the space inside the casing 100 of the main body of the outdoor unit 30, the noise level generated by the outdoor unit 30 can be reduced.

[0195] Alternatively, it can be configured such that outdoor air A3 flows smoothly from the second outlet 64c of the damper device 64 to the connection port 102q communicating with the housing 100, i.e., so that no turbulence or noise is generated between them. That is, a pipe connecting the second outlet 64c and the connection port 102q can also be provided inside the housing 102.

[0196] Alternatively, the damper device 64 can be configured such that the second flow outlet 64c of the damper device 64 in the isolation chamber S6 is opposite to the connection port 102q, with the second flow outlet 64c facing downwards. Furthermore, the damper device 64 can also be configured such that the second flow outlet 64c of the damper device 64 is directly connected to the connection port 102q.

[0197] Outdoor air A3 flowing out from the first outlet 64b of the damper device 64 flows into the indoor unit 20 via the ventilation duct 56.

[0198] Figure 26 This is a perspective view showing the indoor heat exchanger 22 and nozzle 140 installed in the indoor unit 20. Additionally, Figure 27This is a side view of the indoor unit 20, showing its internal structure. Furthermore, the U-V-W orthogonal coordinate system shown in the figure is a coordinate system for easy understanding of the implementation method and is not limiting to any particular implementation. The U-axis direction represents the left-right direction of the indoor unit 20, the V-axis direction represents the front-back direction, and the W-axis direction represents the height direction (vertical direction).

[0199] like Figure 26 As shown, the indoor unit 20 includes an indoor heat exchanger 22 and a nozzle 140. The nozzle 140 includes a connection portion 140a connected to the ventilation duct 56 and an outlet 140b for blowing out outdoor air A3 supplied from the ventilation duct 56.

[0200] like Figure 27 As shown, a nozzle 140 is disposed within the housing 142 of the indoor unit 20 to blow outdoor air A3 supplied from the ventilation device 50 via the ventilation duct 56 into the housing 142 of the indoor unit 20. Specifically, the nozzle 140 is configured within the indoor unit 20 such that the blown outdoor air A3 passes through a dry area within the indoor unit 20 before reaching the fan 24. The fan 24 is, for example, a cross-flow fan. Furthermore, the term "dry area" here refers to an area that is drier than other areas. Such a "dry area" can be determined through experiments or simulations.

[0201] In this embodiment, the direction of the outdoor air A3 blown out by the nozzle 140 is oriented (direction determined) so that the outdoor air A3 blown out from the outlet 140b passes through the drying section DP of the indoor heat exchanger 22, which serves as the "drying zone" within the indoor unit 20.

[0202] Specifically, in this embodiment, such as... Figure 27 As shown, when viewed in the direction extending from the rotation center line of the fan 24 (viewed in the U-axis direction), the indoor heat exchanger 22 is arranged as described below. That is, the indoor heat exchanger 22 is arranged within the housing 142 of the indoor unit 20 in a manner that partially (partially) surrounds the fan 24 (in this embodiment, it surrounds the fan 24 but not its lower part). Furthermore, the indoor heat exchanger 22 is composed of a first portion 22a located behind the fan 24 and a second portion 22b located in front of the fan 24. The refrigerant supplied from the compressor 36 flows within this indoor heat exchanger 22. In this embodiment, during cooling operation or weak cooling operation (dehumidification operation) of the air conditioner 10, when viewed in the direction extending from the rotation center line of the fan 24, the refrigerant flows from the upper part of the first portion 22a to the lower part, and then from the lower part of the second portion 22b to the upper part. That is, the refrigerant flows within... Figure 27 The heat flows counterclockwise within the indoor heat exchanger 22.

[0203] As a result of this refrigerant flow, a dry section DP is formed in the upper part of the second section 22b of the indoor heat exchanger 22. The dry section DP is located downstream in the refrigerant flow direction within the indoor heat exchanger 22. As the refrigerant flows through the other sections of the indoor heat exchanger 22, its temperature rises, therefore, condensation is less likely to occur in the dry section DP compared to other sections (less condensate adheres).

[0204] Furthermore, in this embodiment, the dry portion DP of the indoor heat exchanger 22 is the part that is separated from the drain pans 144 and 146 located below the indoor heat exchanger 22, therefore, there is less condensation. That is, the condensation flows downwards from the surface of the indoor heat exchanger 22 towards the drain pans 144 and 146, therefore, there is less condensation in the dry portion DP located at the upper part of the indoor heat exchanger 22.

[0205] The reason why the outdoor air A3 blown out from the nozzle 140 passes through the drying area inside the indoor unit 20 (in this embodiment, the drying section DP of the indoor heat exchanger 22) and goes to the fan 24 will be explained.

[0206] The air conditioner 10 is configured to perform both dehumidification operation based on the refrigeration cycle (weak cooling operation) and dehumidification operation based on the ventilation device 50 in one operating mode.

[0207] During dehumidification operation based on the refrigeration cycle, when the fan 24 rotates, indoor air A1 is drawn into the housing 142 through the air intake 142a located at the top of the housing 142 of the indoor unit 20, and passes through the indoor heat exchanger 22. At this time, the indoor air A1 is cooled by the indoor heat exchanger 22, and moisture is captured and dried. The captured moisture condenses on the surface of the indoor heat exchanger 22. The dried indoor air A1 is blown out into the room through the air outlet 142b by the fan 24.

[0208] Dehumidification operation based on ventilation device 50 (see reference) Figure 5 In this process, outdoor air A3, heated during the adsorption operation in dehumidification, is supplied from the ventilation device 50 to the nozzle 140. The outdoor air A3 is blown out of the nozzle 140 and drawn by the fan 24 through the drying section DP of the indoor heat exchanger 22. Since the outdoor air A3 passes through the drying section DP and does not pass through other parts of the indoor heat exchanger 22 where a large amount of condensation adheres, it remains dry. While maintaining a dry state, the outdoor air A3 that has passed through the indoor heat exchanger 22 is blown out by the fan 24 through the air outlet 142b into the indoor Rin.

[0209] When both dehumidification operation based on the refrigeration cycle (weak cooling operation) and dehumidification operation based on the ventilation device 50 are performed simultaneously, the indoor temperature (Rin) can be dehumidified without significantly reducing the indoor temperature.

[0210] Here, it is assumed that the outdoor air A3 blown out from nozzle 140 is humidified by the evaporation of condensate as it passes through other parts of the indoor heat exchanger 22, excluding the drying section DP. Since the humidified outdoor air A3 is blown out into the indoor Rin, that is, since some of the moisture originally present in the indoor Rin returns to the indoor Rin, the dehumidification efficiency of the indoor Rin is reduced.

[0211] In addition, the air conditioner 10 is configured to perform dehumidification operation (weak cooling operation) based on the refrigeration cycle and ventilation operation based on the ventilation device 50 in one operating mode.

[0212] In this case, outdoor air A3 that has not been dehumidified is supplied from the ventilation device 50 to the nozzle 140. Then, the outdoor air A3 blown out from the nozzle 140 passes through the drying section DP of the indoor heat exchanger 22. In this case, a portion of the condensate water adhering to the indoor heat exchanger 22 can be returned to the indoor Rin without dehumidification operation, thus achieving indoor Rin ventilation.

[0213] In addition, the nozzle 140 can also blow at least a portion of the outdoor air A3 toward the space between the indoor heat exchanger 22 and the fan 24, which serves as a "dry area" within the indoor unit 20.

[0214] In this embodiment, the nozzle 140 is configured to be divisible into multiple parts in a non-destructive manner.

[0215] Figure 28 This is an exploded perspective view showing the structure of nozzle 140. Additionally, Figure 29 This is a perspective view showing the nozzle 140 separated into two parts. Furthermore, Figure 30 This is a cross-sectional view showing the structure of nozzle 140.

[0216] like Figure 28 As shown, nozzle 140 consists of four parts: 148, 150, 152, and 154. Specifically, as... Figure 29 As shown, in this embodiment, the nozzle 140 is configured to be separable into a rear portion 140c having a connecting portion 140a and a front portion 140d having a blowout port 140b. The rear portion 140c has a connection port 140e for connecting with the front portion 140d, and the front end portion 140f of the front portion 140d can be inserted into and removed from the connection port 140e.

[0217] like Figure 29 As shown, in this embodiment, the rear portion 140c is mounted on the base component 156 of the indoor unit 20, and the front portion 140d is mounted on the filter frame 158. The base component 156 functions as a bracket for mounting the indoor unit 20 on a wall surface and holds the indoor unit 20's components such as the indoor heat exchanger 22 and the fan 24. The filter frame 158 is a component that holds a filter (not shown) through which indoor air A1 destined for the indoor heat exchanger 22 passes, and it is detachable from the base component 156. When the filter frame 158 is removed from the base component 156, the front portion 140d of the nozzle 140 separates from the rear portion 140c.

[0218] like Figure 30 As shown, when the front end 140f of the front portion 140d of the nozzle 140 is inserted into the connection port 140e of the rear portion 140c, the inner circumferential surface 140g of the rear portion 140c and the inner circumferential surface 140h of the front portion 140d are connected in a continuous manner without steps. This suppresses the pressure loss of the outdoor air A3 flowing from the rear portion 140c to the front portion 140d.

[0219] like Figure 28 As shown, the rear portion 140c of the nozzle 140 is configured to be divided into two parts 148 and 150 along its internal flow path. Similarly, the front portion 140d is also configured to be divided into two parts 152 and 154 along its internal flow path. Parts 148 and 150 are configured to be joined together using, for example, snap-fit ​​connections, without the use of screws or other fixing components. Likewise, parts 152 and 154 are also configured to be joined together without the use of fixing components.

[0220] In addition, such as Figure 30 As shown, in this embodiment, a flow-constricting section 140i is provided on the rear portion 140c of the nozzle 140, making the flow path cross-sectional area smaller than that of other locations. This allows for the reflection of noise from the outdoor unit 30, reducing the level of noise propagating into the indoor unit 20.

[0221] The nozzle 140 with this structure allows for easy internal inspection and cleaning. That is, the nozzle 140 can be divided into four parts 148, 150, 152 and 154, and each part can be inspected and cleaned.

[0222] According to the above-described embodiment, in the air conditioner 10 that supplies outdoor air A3 from outdoor unit 30 to indoor unit 20, the noise level generated by outdoor unit 30 when exhausting outdoor air A3 to outdoor Rout can be reduced.

[0223] The present invention has been described above with examples of the embodiments described above, but the present invention is not limited to the embodiments described above.

[0224] For example, in the case of the above-described implementation, such as Figure 24 As shown, outdoor air A3 flowing out from the second outlet 64c of the damper device 64 of the ventilation device 50 flows into the housing 100 of the main body of the outdoor unit 30. However, the embodiments of the present invention are not limited to this. As long as the outdoor air A3 discharged from the damper device 64 to the outdoor Rout passes through a relatively wide internal space before being discharged to the outdoor Rout, a muffler effect (noise reduction effect) can be obtained. Therefore, the housing through which the outdoor air A3 passes is not limited.

[0225] That is, the air conditioner according to the embodiments of the present invention is broadly defined as an air conditioner including an indoor unit and an outdoor unit. Furthermore, the outdoor unit includes a first housing, a second housing, and an absorbent material disposed within the second housing for the passage of outdoor air. Additionally, the outdoor unit includes: a damper device disposed within the second housing for distributing outdoor air, after passing through the absorbent material, to the indoor unit or the first housing; and a fan for generating an airflow of outdoor air passing through the absorbent material and proceeding to the damper device. The damper device includes: an inlet for the inflow of outdoor air after passing through the absorbent material; a first outlet communicating with the indoor unit for the outflow of outdoor air; a second outlet communicating with the first housing for the outflow of outdoor air; and a sealing door for selectively closing one of the first outlet and the second outlet.

[0226] Industrial availability

[0227] This invention can be applied to any air conditioner that includes an indoor unit and an outdoor unit.

[0228] Explanation of reference numerals in the attached figures

[0229] 10 air conditioners

[0230] 20 indoor units

[0231] 22 Indoor heat exchangers

[0232] 22a Part 1

[0233] 22b Part 2

[0234] 24 fans

[0235] 30 outdoor units

[0236] 32 Outdoor heat exchangers

[0237] 34 fans

[0238] 36 compressors

[0239] 38 Expansion Valve

[0240] 40 Four-way Valve

[0241] 50 ventilation devices

[0242] 52 Absorbent Material (Absorbent Material)

[0243] 52a First end face

[0244] 52b second end face

[0245] 52c outer periphery

[0246] 54 electric motors

[0247] 56 ventilation ducts

[0248] 58 First heater

[0249] 60 Second heater

[0250] 62 fans (first fan)

[0251] 62a impeller

[0252] 62b electric motor

[0253] 64 damper device

[0254] 64a Flow Inlet

[0255] 64b First-class exit

[0256] 64c Second Stream Outlet

[0257] 64d enclosed door

[0258] 66 Second Fan

[0259] 66a impeller

[0260] 66b electric motor

[0261] 70 remote control

[0262] 100 First shell (shell)

[0263] 102 Second shell (shell)

[0264] 102a First Intake Port

[0265] 102b Second Intake Port

[0266] 102c exhaust port

[0267] 102d anterior wall

[0268] 102e posterior wall

[0269] 102f base plate

[0270] 102g third inhalation port

[0271] 102h fourth intake port

[0272] 102i right wall

[0273] 102j support shaft

[0274] 102k annular wall

[0275] Part 102

[0276] 102m lattice

[0277] 102n upper surface

[0278] 102° inclined plane

[0279] 102q connection port

[0280] 104 cover

[0281] 106 partition

[0282] 106a air intake

[0283] 110 heater unit

[0284] 112 Heater base component

[0285] 112a Heater mounting section

[0286] 112b Absorbent Material Storage Section

[0287] 112c card assembly

[0288] 112d beam section

[0289] 112e collision plate

[0290] 112f Throttling Wall

[0291] 114 Absorbent Material Retainer

[0292] 114a Cylindrical part

[0293] 114b wheel hub

[0294] 114c spoke section

[0295] 114d external teeth

[0296] 114e flange

[0297] 116 pinion gears

[0298] 118 First Cover Component

[0299] 120 Second Cover Component

[0300] 120a Top Plate

[0301] 120b wall section

[0302] 122 base cover components

[0303] 122a base plate

[0304] 122b wall section

[0305] 124 partition

[0306] 124a Rib

[0307] 124b protrusion

[0308] 124c annular wall

[0309] 124d air intake

[0310] 126 First Sealing Unit

[0311] 126a sealing component

[0312] 126b Sealing component retainer

[0313] 128 Second Sealing Unit

[0314] 128a sealing components

[0315] 128b Sealing component retainer

[0316] 130 labyrinth seal component

[0317] 130a end face

[0318] 130b protrusion

[0319] 132 Fan Cover Component

[0320] 132a Barrier

[0321] 134 Motor Cover Components

[0322] 134a Barrier

[0323] 136-hole component

[0324] 138 temperature sensor

[0325] 140 nozzles

[0326] 140a Connection Part

[0327] 140b blowout

[0328] 140c rear section

[0329] 140d front section

[0330] 140e connector

[0331] 140f front end

[0332] 140g inner circumference

[0333] 140h inner circumferential surface

[0334] 140i flow reducer

[0335] 142 housing

[0336] 142a air intake

[0337] 142b air outlet

[0338] 144 Drainage Plate

[0339] 146 Drainage Pan

[0340] 148 parts

[0341] 150 parts

[0342] 152 parts

[0343] 154 parts

[0344] 156 base components

[0345] 158 filter box

[0346] 202 housing

[0347] 202h fourth intake port

[0348] 202m lattice

[0349] 202p sagging

[0350] 226b Sealing component retainer

[0351] 228b Sealing component retainer

[0352] 236-hole component

[0353] A1 Indoor Air

[0354] A2 Outdoor Air

[0355] A3 Outdoor Air

[0356] A4 Outdoor Air

[0357] AP High Voltage Area

[0358] C1 Rotation Center Line

[0359] D distance

[0360] DP drying section

[0361] DR rotation direction

[0362] F1 Fan Room

[0363] F2 Fan Room

[0364] H (waste heat)

[0365] M1 motor room

[0366] P1 first flow path

[0367] P1a branch road

[0368] P1b branch path

[0369] P1c mainstream path

[0370] P1d connecting path

[0371] P2 Second Flow Path

[0372] PL labyrinth flow path

[0373] PLa radial flow path

[0374] R1 heat exchange chamber

[0375] R2 Machinery Room

[0376] Rin indoor

[0377] Rout Outdoor

[0378] S1 First Space

[0379] S2 Second Space

[0380] S3 Third Space

[0381] S4 Fourth Space

[0382] S5 Space

[0383] S6 Isolation Room.

Claims

1. An air conditioner comprising an indoor unit and an outdoor unit, characterized in that: The outdoor unit includes: First shell; Second shell; An absorbent material is disposed inside the second housing, through which outdoor air can pass; A damper device, disposed within the second housing, distributes outdoor air, after passing through the absorbent material, to the indoor unit or the first housing. and A fan that generates an airflow of outdoor air that passes through the absorbent material and then towards the damper device. The damper device includes: an inlet for outdoor air to flow in after passing through the absorbent material; a first outlet connected to the indoor unit for outdoor air to flow out; a second outlet connected to the first housing for outdoor air to flow out; and a door that selectively closes one of the first outlet and the second outlet. The first housing includes a machinery compartment that houses the compressor that constitutes the refrigeration cycle of the air conditioner. The second outlet of the damper device is connected to the machine room.

2. An air conditioner having an indoor unit and an outdoor unit, characterized in that: The outdoor unit includes: First shell; Second shell; An absorbent material is disposed inside the second housing, through which outdoor air can pass; A damper device, disposed within the second housing, distributes outdoor air, after passing through the absorbent material, to the indoor unit or the first housing. and A fan that generates an airflow of outdoor air that passes through the absorbent material and then towards the damper device. The damper device includes: an inlet for outdoor air to flow in after passing through the absorbent material; a first outlet connected to the indoor unit for outdoor air to flow out; a second outlet connected to the first housing for outdoor air to flow out; and a door that selectively closes one of the first outlet and the second outlet. The second outlet of the damper device opens horizontally and communicates with an isolation chamber located within the second housing, which serves as a space independent of other spaces. The bottom plate of the isolation chamber is provided with a connection port that communicates with the inside of the first shell.

3. An air conditioner having an indoor unit and an outdoor unit, characterized in that: The outdoor unit includes: First shell; Second shell; An absorbent material is disposed inside the second housing, through which outdoor air can pass; A damper device, disposed within the second housing, distributes outdoor air, after passing through the absorbent material, to the indoor unit or the first housing. and A fan that generates an airflow of outdoor air that passes through the absorbent material and then towards the damper device. The damper device includes: an inlet for outdoor air to flow in after passing through the absorbent material; a first outlet connected to the indoor unit for outdoor air to flow out; a second outlet connected to the first housing for outdoor air to flow out; and a door that selectively closes one of the first outlet and the second outlet. The second outlet of the damper device opens inside the second housing. The bottom plate inside the second housing has a connection port that communicates with the inside of the first housing. A pipe is provided inside the second housing to connect the second outlet and the connection port.

4. An air conditioner having an indoor unit and an outdoor unit, characterized in that: The outdoor unit includes: First shell; Second shell; An absorbent material is disposed inside the second housing, through which outdoor air can pass; A damper device, disposed within the second housing, distributes outdoor air, after passing through the absorbent material, to the indoor unit or the first housing. and A fan that generates an airflow of outdoor air that passes through the absorbent material and then towards the damper device. The damper device includes: an inlet for outdoor air to flow in after passing through the absorbent material; a first outlet connected to the indoor unit for outdoor air to flow out; a second outlet connected to the first housing for outdoor air to flow out; and a door that selectively closes one of the first outlet and the second outlet. The second outlet of the damper device opens downwards and communicates with an isolation chamber located within the second housing, which serves as a space independent of other spaces. A connection port communicating with the inside of the first housing is provided on a portion of the bottom plate of the isolation chamber opposite to the second outlet.

5. The air conditioner according to any one of claims 1 to 4, characterized in that: The opening direction of the first outlet is opposite to the opening direction of the inlet.

Images