Air conditioner indoor unit and air conditioner

Abstract

The present invention relates to an air conditioner indoor unit and an air conditioner. The air conditioner indoor unit includes: a housing (1) provided with a first air outlet (2) and a second air outlet (3); a heat exchanger (4) disposed in the housing (1); and a fan (5) disposed in the housing (1). The orientations of the air outlet and the air inlet of the fan (5) are adjustable to switch between a first orientation and a second orientation. In the first orientation, the fan (5) causes the air introduced from the first air outlet (2) to flow through the heat exchanger (4) towards the second air outlet (3). In the second orientation, the fan (5) causes the air introduced from the second air outlet (3) to flow through the heat exchanger (4) towards the first air outlet (2), improving the problem of the single air outlet direction of the air conditioner indoor unit in the related art.

Description

Technical Field

[0001] The present invention relates to the field of refrigeration equipment, and more particularly, to an air conditioner indoor unit and an air conditioner. Background Art

[0002] Traditional air conditioner indoor units (such as air duct units) include a first air outlet and a second air outlet. The first air outlet can only be used as an air inlet, and the second air outlet can only be used as an air outlet. Therefore, the air outlet direction of the air conditioner indoor unit cannot be adjusted, and the air outlet direction is single.

[0003] To address the above problems, an air conditioner indoor unit in a technical solution in the related art includes a first air outlet, a second air outlet, and a fan that can rotate forward and backward in the air duct provided between the first air outlet and the second air outlet. When the fan rotates forward, the first air outlet admits air and the second air outlet discharges air. When the fan rotates backward, the first air outlet discharges air and the second air outlet admits air, so that the two air outlets of the air conditioner indoor unit can both discharge the heat-exchanged air, and the air outlet direction of the air conditioner indoor unit can be adjusted.

[0004] Another technical solution of the air conditioner indoor unit in the related art includes a first air outlet, a second air outlet, a first fan and a second fan provided in the air duct between the first air outlet and the second air outlet. The first fan is used to make the air introduced from the first air outlet pass through the heat exchanger and be discharged from the second air outlet, and the second fan is used to make the air introduced from the second air outlet pass through the heat exchanger and be discharged from the first air outlet. The air outlet direction of the air conditioner indoor unit is controlled by controlling the start and stop of the first fan and the second fan.

[0005] In the above technical solutions, the fan in the stopped state will impede the air intake or air discharge of the working fan, resulting in increased energy consumption and decreased efficiency of the air conditioner indoor unit. In addition, even when the two fans work simultaneously, the energy consumption of the air conditioner indoor unit is relatively large. Summary of the Invention

[0006] The present invention aims to provide an air conditioner indoor unit and an air conditioner to improve the problem of the single air outlet direction of the air conditioner indoor unit in the related art.

[0007] According to one aspect of the embodiments of the present invention, there is provided an air conditioner indoor unit, which includes:

[0008] A housing provided with a first air outlet and a second air outlet;

[0009] A heat exchanger disposed in the housing; and

[0010] A fan disposed in the housing, the air outlet and air inlet of the fan being adjustable in orientation to switch between a first orientation and a second orientation. In the first orientation, the fan causes the air introduced from the first air outlet to flow through the heat exchanger towards the second air outlet. In the second orientation, the fan causes the air introduced from the second air outlet to flow through the heat exchanger towards the first air outlet.

[0011] In some embodiments, the blower is rotatably disposed within the housing to adjust the orientations of its air outlet and air inlet.

[0012] In some embodiments, the air conditioner indoor unit further includes a supporting portion for supporting the blower. The blower is spherical or spherical segment-shaped, and the supporting portion is provided with an installation cavity adapted to the blower.

[0013] In some embodiments,

[0014] The supporting portion includes a first supporting portion and a second supporting portion disposed opposite to the first supporting portion;

[0015] The installation cavity includes a first concave cavity provided on the surface of the first supporting portion facing the second supporting portion and a second concave cavity provided on the surface of the second supporting portion facing the first supporting portion.

[0016] In some embodiments, a first steering shaft is provided on the blower. The blower is configured to rotate about the first steering shaft as the rotation center. The supporting portion is provided with a first installation hole for installing the first steering shaft. The first installation hole is formed by a first groove provided on the surface of the first supporting portion facing the second supporting portion and a second groove provided on the surface of the second supporting portion facing the first supporting portion.

[0017] In some embodiments, the air conditioner indoor unit further includes a driving portion for driving the blower to rotate. The driving portion includes:

[0018] A first gear, connected to the blower;

[0019] A second gear, meshing with the first gear;

[0020] A driving motor, connected to the second gear.

[0021] In some embodiments, the axis of the first gear coincides with the rotation axis of the blower. [[ID=�3]]

[0022] In some embodiments, the first gear is located at the bottom end of the blower.

[0023] In some embodiments, a first steering shaft is provided on the blower. The blower is configured to rotate about the first steering shaft as the rotation center. A central hole is provided on the first steering shaft. The air conditioner indoor unit further includes a cable connected to the blower, and the cable is threaded through the central hole.

[0024] In some embodiments, the air conditioner indoor unit further includes a limiting portion for limiting the rotation angle of the blower relative to the housing. The limiting portion includes a moving member that rotates with the blower and a blocking member for blocking the movement of the moving member.

[0025] In some embodiments, the blocking member includes a first blocking member and a second blocking member, and the first blocking member and the second blocking member are spaced 180 degrees in the circumferential direction of the rotation center of the blower.

[0026] In some embodiments, the air conditioner indoor unit includes a duct machine.

[0027] In some embodiments, the heat exchanger includes a first heat exchanger and a second heat exchanger, and the first heat exchanger and the second heat exchanger are arranged in a V shape.

[0028] In some embodiments, the tip of the V shape faces the blower.

[0029] According to another aspect of the present invention, there is also provided an air conditioner, which includes the above-mentioned air conditioner indoor unit.

[0030] Applying the technical solution of the present invention, the orientations of the air outlet and the air inlet of the blower are adjustable to switch between a first orientation and a second orientation. In the first orientation, the blower causes the air introduced through the first air outlet to flow through the heat exchanger towards the second air outlet. In the second orientation, the blower causes the air introduced through the second air outlet to flow through the heat exchanger towards the first air outlet, improving the problem of the single air outlet direction of the air conditioner indoor unit in the related art.

[0031] Through the following detailed description of the exemplary embodiments of the present invention with reference to the accompanying drawings, other features and advantages of the present invention will become clear. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the related art, the following will briefly introduce the drawings required for use in the description of the embodiments or the related art. Obviously, the drawings in the following description are only some embodiments of the present invention, and those of ordinary skill in the art can also obtain other drawings based on these drawings without creative efforts.

[0033] Figure 1 The schematic structural diagram of the air conditioner indoor unit according to the first embodiment of the present invention is shown;

[0034] Figure 2 The schematic internal structural diagram of the air conditioner indoor unit according to the first embodiment of the present invention is shown;

[0035] Figure 3 The working principle diagram of the first working condition of the air conditioner indoor unit according to the first embodiment of the present invention is shown;

[0036] Figure 4 The working principle diagram of the second working condition of the air conditioner indoor unit according to the first embodiment of the present invention is shown;

[0037] Figure 5Shows a schematic cross-sectional structure of an air conditioner indoor unit according to a first embodiment of the present invention;

[0038] Figure 6 Shows a schematic structure of a blower and a carrier part for carrying the blower of an air conditioner indoor unit according to a first embodiment of the present invention;

[0039] Figure 7 Shows a partially enlarged view of a blower carrier part of an air conditioner indoor unit according to a first embodiment of the present invention;

[0040] Figure 8 Shows a three-dimensional schematic structure of a blower of an air conditioner indoor unit according to a first embodiment of the present invention;

[0041] Figure 9 Shows a three-dimensional schematic structure of the blower of an air conditioner indoor unit according to a first embodiment of the present invention from another angle;

[0042] Figure 10 Shows a schematic structure of a blower and a driving part of an air conditioner indoor unit according to a first embodiment of the present invention;

[0043] Figure 11 Shows a schematic structure of a blower and a driving part of an air conditioner indoor unit according to an alternative embodiment of a first embodiment of the present invention;

[0044] Figure 12 Shows a three-dimensional schematic structure of a blower of an air conditioner indoor unit according to a second embodiment of the present invention from another angle.

[0045] Figure 13 Shows a schematic structure of a blower and a carrier part of an air conditioner indoor unit according to a third embodiment of the present invention;

[0046] Figure 14 Shows a schematic internal structure of a carrier part of an air conditioner indoor unit according to a third embodiment of the present invention;

[0047] Figure 15 Shows a schematic cross-sectional structure of an air conditioner indoor unit according to a third embodiment of the present invention;

[0048] Figure 16 Shows a schematic structure of a blower of an air conditioner indoor unit according to a third embodiment of the present invention;

[0049] Figure 17 Shows a working principle diagram of a first working condition of an air conditioner indoor unit according to a fourth embodiment of the present invention;

[0050] Figure 18 Shows a working principle diagram of a second working condition of an air conditioner indoor unit according to a fourth embodiment of the present invention;

[0051] Figure 19Shows the working principle diagram of the first operating condition of the air conditioner indoor unit according to the fifth embodiment of the present invention;

[0052] Figure 20 Shows the working principle diagram of the second operating condition of the air conditioner indoor unit according to the fifth embodiment of the present invention;

[0053] Figure 21 Shows the structural schematic diagram of the air conditioner indoor unit according to the sixth embodiment of the present invention;

[0054] Figure 22 Shows Figure 21 The partial enlarged view at A in

[0055] Figure 23 Shows the installation structure schematic diagram of the fan of the air conditioner indoor unit according to the sixth embodiment of the present invention;

[0056] Figure 24 Shows the structural schematic diagram of the mounting plate and the connecting part of the air conditioner indoor unit according to the sixth embodiment of the present invention;

[0057] Figure 25 Shows Figure 24 The cross-sectional structural schematic diagram of the shown mounting plate and connecting part;

[0058] Figure 26 Shows Figure 25 The enlarged view at B in

[0059] Figure 27 Shows the structural schematic diagram of the mounting plate of the air conditioner indoor unit according to the sixth embodiment of the present invention; and

[0060] Figure 28 Shows the structural schematic diagram of the fan and the bearing part of the air conditioner indoor unit according to the sixth embodiment of the present invention.

[0061] In the figure:

[0062] 1. Housing; 2. First air outlet; 3. Second air outlet; 4. Heat exchanger; 41. First heat exchanger; 42. Second heat exchanger; 5. Fan; 51. First steering shaft; 52. Cable; 53. Central hole; 54. Second steering shaft; 6. Bearing part; 61. First bearing part; 62. Second bearing part; 63. Installation cavity; 64. First groove; 65. Second groove; 66. Third groove; 67. Fourth groove; 68. Blocking component; 69. Installation hole; 7. Water receiving component; 8. First gear; 91. First bearing; 92. Second bearing; 10. Moving part; 11. Second gear; 12. Driving motor; 13. Flow guiding component; 14. Third gear; 15. Fourth gear; 16. Air purification part; 17. Mounting plate; 171. First plate part; 172. Second plate part; 173. Clamping hole; 18. Connecting part; 181. Threaded hole; 182. Clamping part; 19. Elastic buffer pad; 191. First elastic buffer pad; 192. Second elastic buffer pad. Detailed implementation mode

[0063] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0064] Embodiment 1

[0065] Figure 1 The structural schematic diagram of the air conditioner indoor unit of this embodiment is shown; Figure 2 The internal structural schematic diagram of the air conditioner indoor unit of this embodiment is shown.

[0066] Combined with Figure 1 and Figure 2 As shown, the air conditioner indoor unit of this embodiment includes a housing 1 provided with a first air outlet 2 and a second air outlet, a heat exchanger 4 provided in the housing 1, and a fan 5 provided in the housing 1. The air inlet and outlet of the fan 5 can be adjusted in orientation to switch between a first orientation and a second orientation. In the first orientation, the fan 5 causes the air introduced through the first air outlet 2 to flow through the heat exchanger 4 towards the second air outlet 3. In the second orientation, the fan 5 causes the air introduced through the second air outlet 3 to flow through the heat exchanger 4 towards the first air outlet 2.

[0067] Figure 3 The working principle diagram of the air conditioner indoor unit when the fan is in the first orientation is shown, Figure 4 The working principle diagram of the air conditioner indoor unit when the fan is in the second orientation is shown.

[0068] As Figure 3 shown, when the blower 5 is in the first orientation, the air inlet of the blower 5 is on the side of the blower 5 adjacent to the first air outlet 2, and the air outlet of the blower 5 is on the side of the blower 5 adjacent to the second air outlet 3. Figure 3 The arrow in indicates the air flow direction. During the operation of the air conditioner indoor unit, under the action of the blower 5, air enters the air conditioner indoor unit from the first air outlet 2, and is discharged from the second air outlet 3 after heat exchange with the heat exchanger 4.

[0069] As Figure 4 shown, when the blower 5 is in the second orientation, the air inlet of the blower 5 is on the side of the blower 5 adjacent to the second air outlet 3, and the air outlet of the blower 5 is on the side of the blower 5 adjacent to the first air outlet 2. Figure 4 The arrow in indicates the air flow direction. During the operation of the air conditioner indoor unit, under the action of the blower 5, air enters the air conditioner indoor unit from the second air outlet 3, and is discharged from the first air outlet 2 after heat exchange with the heat exchanger 4.

[0070] The blower 5 is rotatably arranged in the housing 1 to adjust the orientation of its air outlet and air inlet.

[0071] In some embodiments, the orientation of the air outlet of the blower 5 is inclined relative to the horizontal direction. The orientation of the air outlet of the blower 5 is inclined upward or downward relative to the horizontal direction.

[0072] The air conditioner indoor unit further includes a carrying part 6 for carrying the blower 5, Figure 6 which shows a schematic structural diagram of the blower of the air conditioner indoor unit in this embodiment and the carrying part 6 for carrying the blower 5.

[0073] The blower 5 is spherical or spherical segment-shaped, and the carrying part 6 is provided with an installation cavity 63 adapted to the blower 5. The blower 5 is rotatably arranged in the installation cavity to switch between the first orientation and the second orientation.

[0074] In some embodiments, there are multiple installation cavities 63, which are arranged in one-to-one correspondence with the blower 5. The blower 5 is installed in the corresponding installation cavity 63, and the multiple installation cavities 63 are independent of each other; two adjacent installation cavities 63 are spaced apart.

[0075] In some embodiments, the multiple installation cavities 63 communicate with each other, which is beneficial to reducing the noise during the operation of the air conditioner indoor unit.

[0076] In this embodiment, the blower 5 is a mixed-flow blower. Further, the mixed-flow blower can overcome the disadvantages of small air volume and large size of the centrifugal blower, large noise of the axial-flow blower, and large size of the cross-flow blower, and can ensure the balance among air volume, static pressure, and size.

[0077] In some embodiments, the fan 5 and the motor that drives the fan are integrated. That is, the motor and the fan are a combined product assembled into one body.

[0078] The bearing portion 6 includes a first bearing portion 61 and a second bearing portion 62 disposed opposite to the first bearing portion 61; the installation cavity 63 includes a first concave cavity provided on the surface of the first bearing portion 61 facing the second bearing portion 62 and a second concave cavity provided on the surface of the second bearing portion 62 facing the first bearing portion 61.

[0079] Figure 8 and Figure 9 shows a schematic structural view of the fan 5 of this embodiment. As shown in combination with Figures 6 to 9 shown, a first steering shaft 51 is provided on the fan 5, and the fan 5 is configured to rotate about the rotation center of the first steering shaft 51. The bearing portion 6 is provided with a first mounting hole for mounting the first steering shaft 51, and the first mounting hole is composed of a first groove 64 provided on the surface of the first bearing portion 61 facing the second bearing portion and a second groove 65 provided on the surface of the second bearing portion 62 facing the first bearing portion 61.

[0080] As Figure 7 shown, the first groove 64 includes a steering shaft mounting groove 64a and a bearing mounting groove 64b.

[0081] The fan 5 is further provided with a second steering shaft 54, the second steering shaft 54 is coaxial with the first steering shaft 51, and the bearing portion 6 is provided with a second mounting hole for mounting the second steering shaft. The fan 5 is rotatably mounted in the mounting cavity 63 of the bearing portion 6 through the first steering shaft 51 and the second steering shaft 54. The second mounting hole is composed of a third groove 66 provided on the surface of the first bearing portion 61 facing the second bearing portion and a fourth groove 67 provided on the surface of the second bearing portion 62 facing the first bearing portion 61.

[0082] The first steering shaft 51 and the second steering shaft 54 are coaxially arranged and are respectively arranged at both ends of the fan 5.

[0083] In some embodiments, the fan 5 can rotate about a vertical rotation axis to switch between a first orientation and a second orientation. The axial directions of the first steering shaft 51 and the second steering shaft 54 are consistent with the vertical direction. The first steering shaft 51 is provided at the top end of the fan 5, and the second steering shaft 54 is provided at the bottom end of the fan 5.

[0084] As Figure 5 shown, the first steering shaft 51 is mounted in the first mounting hole through a first bearing 91, and the second steering shaft 54 is mounted in the second mounting hole through a second bearing 92.

[0085] As Figure 6As shown, a central hole 53 is provided on the first steering shaft 51. The air conditioner indoor unit further includes a cable 52 connected to the blower 5, and the cable 52 is passed through the central hole 53. The cable 52 includes a power supply cable for supplying electric energy to the blower and a control cable for controlling and driving the blower 5.

[0086] The air conditioner indoor unit further includes a driving part for driving the blower 5 to rotate to switch between a first orientation and a second orientation. Figure 5 The structural schematic diagram of the driving part of this embodiment is shown.

[0087] Combined with Figures 5 to 9 As shown, the driving part includes a first gear 8 connected to the blower 5, a second gear 11 meshing with the first gear 8, and a driving motor 12 for driving the second gear 11. Optionally, the second gear 11 is installed on the rotating shaft of the driving motor.

[0088] The axis of the first gear 8 coincides with the rotation axis of the blower 5. As Figure 5 、 8 and 9 show, the first gear 8 is located at the bottom of the blower 5 and is installed on the second steering shaft 54.

[0089] In some embodiments, the driving motors 12 are provided in one-to-one correspondence with the blowers 5. The driving motors 12 are in transmission connection with the first gears 8 connected to the corresponding blowers 5.

[0090] In some embodiments, as Figure 10 shown, one driving motor 12 is in transmission connection with the first gears 8 on at least two blowers 5 to drive at least two blowers 5 to rotate. Optionally, the driving motor 12 is in transmission connection with the first gears 8 on at least two blowers 5 through a gear transmission assembly.

[0091] In this embodiment, the blowers 5 and the driving motors 12 are alternately arranged. The driving motor 12 is in transmission connection with the first gears 8 on two adjacent blowers 5. A second gear 11 is installed on the driving motor 12, and the second gear 11 meshes with the first gears 8 on two blowers 5 located on its two sides respectively.

[0092] As Figure 10 shown, in this embodiment, the driving part is located at the bottom of the blower 5.

[0093] Figure 11 The structural schematic diagram of an alternative embodiment of this embodiment is shown. In this embodiment, the driving part is located at the top of the blower 5, so that the driving part is away from the humid environment at the bottom of the air conditioner indoor unit, which is beneficial to avoiding the corrosion of the driving part and improving the service life of the components of the driving part.

[0094] In this embodiment, when the blower 5 rotates between the first orientation and the second orientation, the motor 5 needs to rotate 180 degrees.

[0095] In some embodiments, the driving part includes a driving motor 12 and a belt transmission assembly for drivingly connecting the driving motor 5 and the blower 5. The belt transmission assembly includes a first pulley mounted on the driving motor 12 and a second pulley mounted on the blower 5.

[0096] In some embodiments, the air conditioner indoor unit further includes an elastic member, which is connected between the blower 5 and the bearing part 6 and is configured to push the blower 5 towards the first direction or the second direction. The driving part of the air conditioner indoor unit is configured to overcome the elastic force of the elastic member to switch the direction of the blower 5. Wherein, the driving part includes one of a cylinder, a hydraulic cylinder, and a linear motor.

[0097] In some embodiments, the driving part further includes a first magnetic body mounted on the blower 5 and a second magnetic body mounted on the bearing part 6. The first magnetic body and the second magnetic body have different magnetic properties, so that the blower 5 moves under the action of the attraction force between the first magnetic body and the second magnetic body, thereby changing the direction of the blower 5; or, the first magnetic body and the second magnetic body have the same magnetic properties, so that the blower 5 moves under the action of the repulsive force between the first magnetic body and the second magnetic body, thereby changing the direction of the blower 5.

[0098] In some embodiments, the air conditioner indoor unit further includes a guiding part, which includes a guide rail and a moving part movable along the guide rail. One of the moving part and the guide rail is mounted on the blower 5, and the other is mounted on the bearing part 6.

[0099] The air conditioner indoor unit of this embodiment further includes a limiting part for limiting the rotation angle of the blower 1 relative to the housing 1. In combination with Figure 5 、 6 and Figure 9 as shown, the limiting part includes a moving part 10 that rotates with the blower 5 and a blocking part 68 for blocking the movement of the moving part 10. The blocking part 10 is arranged on the path where the moving part 10 rotates with the blower 5. When the moving part 10 rotates to the blocking part 68, the moving part 10 is blocked by the blocking part 68, so that the blocking part 68 can limit the rotation angle of the blower 5.

[0100] The blocking part 68 includes a first blocking part and a second blocking part. The first blocking part and the second blocking part are respectively located at both ends of the movement path where the moving part 10 rotates with the blower 5. The first blocking part and the second blocking part are spaced 180 degrees in the circumferential direction of the rotation center of the blower 5, so that the rotation angle of the blower 5 is 0 to 180 degrees.

[0101] In some embodiments, the air conditioner indoor unit further includes a position detection component for checking whether the blower 5 rotates to a predetermined position. The position detection component includes a microswitch or a position sensor. The microswitch or the position sensor is disposed on the path of rotation of the blower 5, and after the blower 5 rotates to the predetermined position, the microswitch and the position sensor emit corresponding signals.

[0102] The air inlet and the air outlet of the blower 5 are respectively located at opposite ends of the blower. After the blower 5 rotates 180 degrees, the air inlet and the air outlet of the blower 5 are reversed, so that the blower 5 switches between a first orientation and a second orientation.

[0103] In some embodiments, considering the arrangement of the heat exchanger, the rotation angle range of the blower 5 can be extended to 0 to 360 degrees.

[0104] In some embodiments, the blower 5 includes a housing and a blower impeller disposed in the housing. The air outlet and the air inlet of the blower 5 are both provided on the housing. The blower 5 further includes a sound insulation material layer provided on the surface of the housing. The sound insulation material layer includes at least one of noise reduction foam and plush material. Optionally, the sound insulation material layer is provided on the inner surface of the housing.

[0105] Combined Figure 2 and Figure 5 As shown, the air conditioner indoor unit includes a plurality of blowers 5 arranged side by side. A first gear 8 is mounted on each blower 5. Optionally, the plurality of first gears 8 are all in transmission connection with a second gear 11.

[0106] As Figure 3 and 4 shown, the heat exchanger 4 includes a first heat exchanger and a second heat exchanger. The first heat exchanger and the second heat exchanger are arranged in a V shape, and the tip of the V shape faces the blower 5. This heat exchanger enables the high-speed air at the outermost periphery of the maximum diameter of the blower 5 to have a sufficient long air supply space, reducing the air supply loss of the blower.

[0107] The air conditioner indoor unit further includes a water receiving component 7 disposed below the heat exchanger. The water receiving component 7 is used to receive the condensed water generated on the heat exchanger 4.

[0108] In some embodiments, the blower 5 is disposed obliquely with respect to the water receiving component 7. A space for laying and connecting a cable 52 on the blower 5 is provided above the blower 5. The cable 52 includes a first strand of cable and a second strand of cable having a different running direction from the first strand of cable, so as to prevent the concentrated stress of the cable when the blower 5 changes its orientation.

[0109] In some embodiments, the air conditioner indoor unit is disposed on the wall between two adjacent rooms and can selectively blow air into one of the two rooms.

[0110] In some embodiments, the first air outlet 2 is provided on the bottom wall of the air conditioner indoor unit, and the second air outlet 3 is provided on the side wall of the air conditioner indoor unit, and the side wall is perpendicular to the bottom wall provided with the first air outlet 2.

[0111] The air conditioner indoor unit realizes downward air supply through an air duct buried in the wall. Optionally, the side air supply blows directly from the second air outlet 3, and the first air outlet 2 is connected to the air outlet on the wall through an air duct. The purpose of connecting the air duct in the wall with the air outlet on the wall is to reduce the resistance when the air returns from the lower air outlet.

[0112] In some embodiments, a wind deflector is provided at the air outlet, and micropores are provided on the wind deflector.

[0113] In some embodiments, a humidifying device is provided on the air outlet. Optionally, the humidifying device includes an ultrasonic humidifying device.

[0114] The air outlet can be provided in a wardrobe or any other cabinet to prevent people from accidentally hitting the air outlet. In some embodiments, a fan is also provided in the air duct in the wall.

[0115] The fan 5 in this embodiment is a mixed-flow fan. The mixed-flow fan has a smaller volume than the diagonal-flow fan and has a circular shape. When the fan is reversed, the space volume of the air conditioner indoor unit is basically not increased. The fan running at high speed can greatly reduce the volume of the fan and further reduce the overall volume of the unit; the air outlet of the mixed-flow fan is circular. Compared with the traditional centrifugal fan, the air outlet basically covers the upper and lower surfaces of the heat exchanger, and the circular air supply is more uniform, greatly reducing the uneven distribution of the air volume on the surface of the heat exchanger, thereby reducing the uneven distribution of the surface temperature of the heat exchanger, and thus providing a better air feeling experience for users.

[0116] Due to the use of the mixed-flow fan, the air velocity on the surface of the heat exchanger is more uniform. Under the same air volume and the same windward area, there will be no area with a high air velocity on the surface of the heat exchanger. Since the air velocity on the surface of the heat exchanger is improved and flow guides are provided at both the air supply and return openings of the unit, the air supply and return resistance of the unit is further reduced; more importantly, this technical solution has only one fan system and will not, like the previous solutions, make the other fan a resistance source or a new noise source of the unit; thus, the noise of the unit can be significantly reduced.

[0117] The "V"-shaped heat exchanger is arranged at the air outlet of the mixed-flow fan, making the air volume distribution on the surface of the heat exchanger more uniform, improving the heat exchange effect, greatly reducing the volume of the heat exchanger; saving materials and reducing the cost of the unit; at the same time, since the air velocity on the surface of the heat exchanger is uniform, the temperature distribution at the air outlet of the unit is more uniform, and the lowest temperature of the air blown out from the air outlet is significantly higher than that of the previous fan solutions, reducing the risk of condensation of the unit.

[0118] The mixed-flow fan (different from the prior art solutions that use centrifugal fans, cross-flow fans, and axial fans) has a small volume and a large air volume, enabling a large air volume output with a small-sized fan. Since the structure of the mixed-flow fan is approximately "spherical", it does not require a large volute like a centrifugal fan or a scroll tongue structure like a cross-flow fan. The rotation of these fan systems requires a large amount of space in the unit; the rotation of the fan in this technical solution does not require much additional space in the unit (basically no increase); therefore, compared with the previous solutions, the volume of the unit can be significantly reduced.

[0119] According to another aspect of the present invention, this embodiment also provides an air conditioner, which includes the above-mentioned air-conditioning indoor unit. In some embodiments, the air-conditioning indoor unit is a duct machine.

[0120] Embodiment Two

[0121] Figure 12 The structural schematic diagram of the air-conditioning indoor unit of this embodiment is shown. The difference between this embodiment and Embodiment One is that the first heat exchanger 41 and the second heat exchanger 42 of the heat exchanger 4 are arranged in a V shape, and a flow guiding component 13 is arranged on the angular bisector of the first heat exchanger 41 and the second heat exchanger 42. The flow guiding component 13 extends along the direction of the angular bisector of the first heat exchanger 41 and the second heat exchanger 42.

[0122] By arranging the flow guiding component 13 between the first heat exchanger 41 and the second heat exchanger 42, the air flow from the first heat exchanger 41 and the air flow from the second heat exchanger 42 can be separated, avoiding the intersection of the air flow from the first heat exchanger 41 and the air flow from the second heat exchanger 42 to generate eddy currents. After the eddy currents are reduced, the influence on the air output volume can be reduced, and the noise can also be reduced, improving the user experience.

[0123] In some embodiments, flow guiding components are also arranged in the flow channels inside the indoor unit.

[0124] Embodiment Three

[0125] Figure 13 The structural schematic diagram of the fan and the bearing part of the air-conditioning indoor unit of this embodiment is shown; Figure 14 The internal structural schematic diagram of the bearing part of the air-conditioning indoor unit of this embodiment is shown; Figure 15 The cross-sectional structural schematic diagram of the air-conditioning indoor unit of this embodiment is shown; Figure 16 The structural schematic diagram of the fan of the air-conditioning indoor unit of this embodiment is shown.

[0126] Combined with Figures 13 to 16 As shown, the difference between this embodiment and Embodiment One is that the driving part for driving the fan 5 to rotate so as to switch the air outlet direction of the fan 5 is arranged corresponding to the fan 5 one by one.

[0127] The orientations of the air outlets of multiple fans 5 can be independently controlled. By finely adjusting the orientations of the air outlets, the air output of the air conditioner indoor unit can be made uniform, and the air flow distribution through the heat exchanger 4 can also be made uniform.

[0128] The driving part includes a driving motor 12, a third gear 14 mounted on the motor 12, and a fourth gear 15 fixed relative to the bearing part 6. The driving motor 12 is fixed relative to the fan 5. The third gear 14 meshes with the fourth gear. During the process of the driving motor 12 driving the third gear 14 to rotate, the third gear 14 rotates around the fourth gear 15, thereby driving the fan 5 to rotate so as to switch the orientation of the air outlet of the fan 5.

[0129] Optionally, the diameter of the fourth gear 15 is larger than that of the third gear.

[0130] In this embodiment, the driving motor 12 can drive the fan 5 to rotate with a relatively small torque to switch the orientation of the air outlet of the fan 5, which is beneficial to preventing the transmission components from being damaged due to excessive torque, and is beneficial to improving the service life and reliability of each component.

[0131] In this embodiment, the driving part is located at the top of the fan 5, so that the driving part is away from the humid environment at the bottom of the air conditioner indoor unit, which is beneficial to avoiding corrosion of the driving part and improving the service life of each component of the driving part.

[0132] Embodiment Four

[0133] Figure 17 Shows the working principle diagram of the first working condition of the air conditioner indoor unit of this embodiment;

[0134] Figure 18 Shows the working principle diagram of the second working condition of the air conditioner indoor unit of this embodiment.

[0135] Combined Figure 17 and Figure 18 As shown, the difference between this embodiment and Embodiment One is that: the air conditioner indoor unit further includes an air purification part 16 located between the first air outlet 2 and the third air outlet 3 along the air flow direction. The heat exchanger 4, the fan 5 and the air purification part 16 are arranged in sequence horizontally between the second air outlet 3 and the first air outlet 2.

[0136] The first air outlet 2 is provided on the bottom wall of the housing of the air conditioner indoor unit, and the second air outlet 3 is provided on the side wall of the housing, and the side wall is perpendicular to the above bottom wall.

[0137] The heat exchanger 4, the fan 5 and the air purification part 16 are arranged side by side horizontally, and the heat exchanger 4, the fan 5 and the air purification part 16 are located between the first air outlet 2 and the second air outlet 3.

[0138] The air purification unit 16 is located between the first air outlet 2 and the blower 5. The air purification unit 16 is inclined toward the first air outlet 2 in the upward direction from bottom to top, so as to utilize the air purification unit 16 to improve the aerodynamic performance of the air inlet or outlet of the first air outlet 2.

[0139] As Figure 17 shown, the first air outlet 2 is an air outlet, and the second air outlet 3 is an air inlet. Under the action of the blower 5, the air introduced from the second air outlet 3 exchanges heat with the heat exchanger 4, and then is purified by the air purification unit 16 and discharged from the first air outlet.

[0140] As Figure 18 shown, the first air outlet 2 is an air inlet, and the second air outlet 3 is an air outlet. Under the action of the blower 5, the air introduced from the first air outlet 2 is purified by the air purification unit 16 and then exchanges heat with the heat exchanger 4, and the air after exchanging heat with the heat exchanger 4 is discharged from the second air outlet 3.

[0141] In some embodiments, the air purification unit 16 includes an electrostatic dust removal component and a sterilization component.

[0142] Embodiment Five

[0143] Figure 19 shows the working principle diagram of the first working condition of the air conditioner indoor unit of this embodiment;

[0144] Figure 20 shows the working principle diagram of the second working condition of the air conditioner indoor unit of this embodiment.

[0145] Combined with Figure 19 and 20 shown, the difference between this embodiment and Embodiment Four is that: the air purification unit 16 is arranged between the second air outlet 3 and the heat exchanger 4. The air purification unit 16, the heat exchanger 4 and the blower 5 are arranged in sequence in the horizontal direction between the second air outlet 3 and the first air outlet 2.

[0146] As ​ shown, the first air outlet 2 is an air outlet, and the second air outlet 3 is an air inlet. Under the action of the blower 5, the air introduced from the second air outlet 3 is purified by the air purification unit 16 and then exchanges heat with the heat exchanger 4, and the air after exchanging heat with the heat exchanger 4 is discharged from the first air outlet 2.

[0147] As ​ shown, the first air outlet 2 is an air inlet, and the second air outlet 3 is an air outlet. Under the action of the blower 5, the air introduced from the first air outlet 2 exchanges heat with the heat exchanger 4 and then is purified by the air purification unit 16, and the air purified by the air purification unit 16 is discharged from the second air outlet 3.

[0148] Embodiment Six

[0149] ​ shows the structural schematic diagram of the air conditioner indoor unit of this embodiment;​ shows ​ a partial enlarged view at A in ​ a schematic diagram of the installation structure of the blower of the air conditioner indoor unit of this embodiment; ​ a schematic diagram of the installation plate and the connecting part of the air conditioner indoor unit of this embodiment; ​ shows ​ a cross-sectional structure schematic diagram of the shown installation plate and the connecting part; ​ shows ​ an enlarged view at B in ​ a schematic diagram of the installation plate of the air conditioner indoor unit of this embodiment.

[0150] Combined with ​ shown, the difference between this embodiment and the first embodiment is that: the air conditioner indoor unit further includes an installation plate 17, the installation plate 17 is connected to the housing 1 of the air conditioner indoor unit, and the blower 5 and the bearing part 6 are installed on the installation plate 17.

[0151] In some embodiments, the installation plate 17 is attached to one side of the bearing part 6.

[0152] Combined with ​ shown, the air conditioner indoor unit further includes a connecting part 18, the connecting part 18 is connected to the installation plate 17 and extends towards the bearing part 6.

[0153] As ​ shown, an installation hole 69 is provided on the surface of the bearing part 6 facing the installation plate 17, the connecting part 18 is inserted into the installation hole 69, and is connected to the bearing part 6 through a threaded connector.

[0154] One end of the connecting part 18 away from the installation plate 17 is provided with a threaded hole 181 adapted to the threaded connector.

[0155] As ​ and 22 shown, the installation hole 69 is a blind hole, and the bearing part 6 at the bottom of the blind hole is connected to the connecting part 18 through a threaded connector.

[0156] The connecting part 18 includes two rod-shaped members arranged at intervals, both rod-shaped members extend from the installation plate 17 towards the bearing part 6 and are inserted into the installation hole 69. One end of the rod-shaped member away from the installation plate 17 is connected to the bearing part 6 through a threaded connector.

[0157] The connecting part 18 further includes a connecting member connecting the ends of the two rod-shaped members adjacent to the installation plate 17, thus forming a U-shaped structure.

[0158] Combined with ​ and ​ shown, the connecting part 18 is connected to the installation plate 17 through a clamping part 182.

[0159] The snap connection part 182 includes a snap provided on the connection part 18. A snap hole adapted to the snap is provided on the mounting plate 17. The hook part of the snap passes through the snap hole 173 and hooks on the side of the mounting plate 17 facing away from the bearing part 6.

[0160] The indoor air conditioner further includes an elastic buffer pad 19 for preventing vibration from being transmitted between the mounting plate 17 and the bearing part 6. The elastic buffer pad 19 includes a first elastic buffer pad 191 provided between the hook part of the snap and the mounting plate 17 and a second elastic buffer pad 192 provided between the connection part 18 and the mounting plate 17. The material of the elastic buffer pad is rubber.

[0161] ​ The structure diagram of the mounting plate 17 is shown. The mounting plate 17 includes a first plate-shaped part 171 and a second plate-shaped part 172 perpendicular to the first plate-shaped part 171. The connection part 18 is mounted on the first plate-shaped part 171, and the second plate-shaped part 172 is connected to the housing of the indoor air conditioner.

[0162] The indoor air conditioner further includes an elastic buffer material provided between the bearing part 6 and the housing 1 of the indoor air conditioner or between the mounting plate 17 and the housing 1. In this embodiment, the elastic buffer material suspends the whole fan 5, which is beneficial to avoiding the vibration of the fan 5 being transmitted to the outside. In addition, the elastic buffer material can also play a sealing role. The material of the elastic buffer material is sponge.

[0163] The above are only exemplary embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. An air conditioner indoor unit, characterized in that, Comprising: A housing (1) provided with a first air outlet (2) and a second air outlet (3); A heat exchanger (4) disposed in the housing (1); And A blower (5) disposed in the housing (1), the air outlet and air inlet of the blower (5) being adjustable in orientation to switch between a first orientation and a second orientation. In the first orientation, the blower (5) causes the air introduced through the first air outlet (2) to flow through the heat exchanger (4) towards the second air outlet (3). In the second orientation, the blower (5) causes the air introduced through the second air outlet (3) to flow through the heat exchanger (4) towards the first air outlet (2). Wherein, the blower (5) includes a mixed-flow blower. The blower (5) is rotatably disposed in the housing (1) to adjust the orientation of its air outlet and air inlet. The air conditioner indoor unit further includes a carrying portion (6) for carrying the blower (5). The blower (5) is spherical or spherical segment-shaped. The carrying portion (6) is provided with an installation cavity (63) adapted to the blower (5), and the blower (5) is rotatably disposed in the installation cavity (63). The carrying portion (6) includes a first carrying portion (61) and a second carrying portion (62) disposed opposite to the first carrying portion (61). The installation cavity (63) includes a first concave cavity provided on the surface of the first carrying portion (61) facing the second carrying portion (62) and a second concave cavity provided on the surface of the second carrying portion (62) facing the first carrying portion (61). A first steering shaft (51) is provided on the blower (5), and the blower (5) is configured to rotate about the first steering shaft (51) as the rotation center. The carrying portion (6) is provided with a first installation hole for installing the first steering shaft (51), and the first installation hole is formed by a first groove (64) provided on the surface of the first carrying portion (61) facing the second carrying portion and a second groove (65) provided on the surface of the second carrying portion (62) facing the first carrying portion (61).

2. The air conditioner indoor unit according to claim 1, characterized in that, It further includes a driving portion for driving the blower (5) to rotate. The driving portion includes: A first gear (8) connected to the blower (5); A second gear (11) meshing with the first gear (8); A driving motor (12) connected to the second gear (11).

3. The air conditioner indoor unit according to claim 2, characterized in that, The axis of the first gear (8) coincides with the rotation axis of the blower (5).

4. The air conditioner indoor unit according to claim 2, characterized in that, The first gear (8) is located at the bottom end of the blower (5).

5. The indoor air conditioner according to claim 1, characterized in that, A first steering shaft (51) is provided on the blower (5), and the blower (5) is configured to rotate about the first steering shaft (51) as the rotation center. A central hole (53) is provided on the first steering shaft (51). The air conditioner indoor unit further includes a cable (52) connected to the blower (5), and the cable (52) is threaded through the central hole (53).

6. The indoor air conditioner according to claim 1, characterized in that It further includes a limiting portion for limiting the rotation angle of the blower (5) relative to the housing (1), and the limiting portion includes a moving member (10) that rotates with the blower (5) and a blocking member (68) for blocking the movement of the moving member (10).

7. The air conditioner indoor unit according to claim 6, characterized in that, The blocking member (68) includes a first blocking member and a second blocking member, and the first blocking member and the second blocking member are spaced 180 degrees in the circumferential direction of the rotation center of the blower (5).

8. The air conditioner indoor unit according to claim 1, wherein, It includes an air duct machine.

9. The air conditioner indoor unit according to claim 1, characterized in that, The heat exchanger (4) includes a first heat exchanger and a second heat exchanger, and the first heat exchanger and the second heat exchanger are arranged in a V shape.

10. The air conditioner indoor unit according to claim 9, characterized in that, The tip of the V shape faces the blower (5).

11. An air conditioner, characterized in that, It includes the air conditioner indoor unit according to any one of claims 1 to 10.

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