Air conditioner

Abstract

The air conditioner comprises a machine shell, a heat exchanger assembly, an air duct assembly and a driving assembly, and the machine shell is provided with an air inlet and an air outlet; the opening and closing door is movably arranged on the machine shell so as to open and close the air outlet. The driving assembly is arranged in the machine shell and comprises a driving mechanism used for driving the opening and closing door to move, the driving mechanism comprises a driving motor and a transmission mechanism, and the transmission mechanism is in transmission connection with a motor shaft of the driving motor and the opening and closing door and comprises a transmission gear and a transmission rack which are meshed. The transmission gear is meshed with the transmission rack in a herringbone tooth meshing mode. According to the air conditioner, the meshing gap between the transmission gear and the transmission rack is small, noise is low, axial force is small, meshing between the transmission gear and the transmission rack is more stable, low noise and low vibration of the driving mechanism are achieved, the transmission mechanism can conduct transmission stably, and therefore the driving mechanism drives the opening and closing door to operate stably.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioning equipment, in particular to an air conditioner. Background Art

[0002] In current air conditioners, the door opening and closing driving mechanism has large vibrations and loud abnormal noises when operating, and the driving mechanism has poor stability in driving the door opening and closing. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to provide an air conditioner, in which the meshing mode of the transmission gear and the transmission rack of the transmission mechanism is a herringbone meshing mode, so that the meshing clearance between the transmission gear and the transmission rack is small, the noise is small, the axial force is small, the meshing between the transmission gear and the transmission rack is more stable, the driving mechanism can achieve low noise and low vibration, the transmission mechanism can be smoothly transmitted, and thus the driving mechanism drives the door to open and close smoothly.

[0004] The air conditioner according to the embodiment of the invention comprises: a casing having an air inlet and an air outlet; a heat exchanger assembly and an air duct assembly disposed in the casing; a switch door movably disposed in the casing to open and close the air outlet; a drive assembly disposed in the casing and comprising a drive mechanism for driving the switch door to move, the drive mechanism comprising a drive motor and a transmission mechanism, the transmission mechanism being drivably connected between the motor shaft of the drive motor and the switch door, the transmission mechanism comprising a meshing transmission gear and a transmission rack, the meshing mode of the transmission gear and the transmission rack being a herringbone meshing mode.

[0005] According to the air conditioner of the embodiment of the invention, the meshing mode between the transmission gear and the transmission rack of the transmission mechanism is a herringbone meshing mode, so that the meshing clearance between the transmission gear and the transmission rack is smaller, the noise is smaller, the axial force is smaller, and the meshing between the transmission gear and the transmission rack is more stable, so that the driving mechanism can achieve low noise and low vibration, so that the transmission mechanism can transmit smoothly, thereby achieving smooth operation of the driving mechanism driving the door to open and close.

[0006] According to some embodiments of the present invention, the transmission gear is disposed on the motor shaft, and the transmission rack is detachably connected to the switch door.

[0007] According to some optional embodiments of the present invention, the transmission rack is connected to the switch door via a first fastener.

[0008] According to some embodiments of the present invention, the drive assembly includes a mounting box, which is mounted on an outer wall of the air duct assembly, at least part of the drive mechanism is located within the mounting box, and a vibration reduction structure is provided between at least part of the drive mechanism and the mounting box.

[0009] According to some optional embodiments of the present invention, the vibration reduction structure includes a first vibration reduction structure, and the first vibration reduction structure is located between the driving motor and the mounting box.

[0010] In some optional embodiments of the present invention, the motor body of the drive motor is located outside the mounting box, the motor body is formed with a mounting lug, the first vibration damping structure includes a first vibration damping portion, a first vibration damping portion is provided between the mounting lug and the mounting box, and a second fastener is suitable for passing through the mounting lug, the first vibration damping portion and the mounting box.

[0011] In some optional embodiments of the present invention, the transmission gear is located in the installation box, the gear shaft of the transmission gear includes a first shaft portion, and an avoidance through hole for avoiding the motor shaft and the first shaft portion is formed on the installation box, the first shaft portion extends into the avoidance through hole and is connected to the motor shaft, the motor shaft is spaced apart from the inner circumferential wall of the avoidance through hole, and the first vibration damping structure includes a second vibration damping portion, and the second vibration damping portion is located between the first shaft portion and the inner circumferential wall of the avoidance through hole.

[0012] In some optional embodiments of the present invention, the first vibration damping structure includes a third vibration damping portion, the third vibration damping portion is connected between the first vibration damping portion and the second vibration damping portion, the axial end face of the motor body adjacent to the mounting box is the mounting end face, and the third vibration damping portion is located between the mounting end face and the mounting box.

[0013] In some optional embodiments of the present invention, the first vibration damping structure is an integrally formed part.

[0014] In some optional embodiments of the present invention, the transmission gear is located in the installation box, the gear shaft of the transmission gear includes a second shaft portion, the second shaft portion is located at an end of the transmission gear away from the drive motor, and the vibration damping structure includes a second vibration damping structure, at least a portion of the second vibration damping structure is located between the second shaft portion and the installation box.

[0015] In some optional embodiments of the present invention, a limiting convex ring is provided on the inner wall of the installation box, a limiting groove is defined between the limiting convex ring and the inner wall of the installation box, and the second shaft portion is accommodated in the limiting groove; wherein, the second vibration damping structure comprises a vibration damping main body portion and a positioning portion, the vibration damping main body portion is located in the limiting groove and between the inner wall of the limiting groove and the second shaft portion, a positioning groove is formed on the positioning portion, and at least a portion of the limiting convex ring is inserted into the positioning groove.

[0016] According to some embodiments of the present invention, the casing extends in the up-down direction, the switch door is movable along the circumference of the casing, a mating flange is formed on the upper edge or the lower edge of the air outlet, the switch door has a mating surface mating with the mating flange, the mating surface mating with the mating flange, and the mating flange is located on the side of the mating surface away from the center of the air outlet in the up-down direction.

[0017] According to some optional embodiments of the present invention, a first protrusion is provided on the inner side of the casing, and the switch door is provided with a second protrusion matching with the first protrusion, the first protrusion is located on the upper side or the lower side of the air outlet, and in the up and down direction, the first protrusion is located on the side of the corresponding second protrusion away from the center of the air outlet; the mating surface is spaced apart from the corresponding mating flange, the first protrusion is spaced apart from the second protrusion, and in the up and down direction, the distance between the first protrusion and the second protrusion is smaller than the distance between the mating surface and the corresponding mating flange.

[0018] In some optional embodiments of the present invention, the casing includes a rear shell and a front panel, the front panel is arranged on the front side of the rear shell, the rear shell forms the air inlet, the front panel includes a panel body and a panel bracket, the panel bracket is arranged on the inner side of the panel body, the panel body forms the air outlet, and the first protrusion is arranged on the panel bracket.

[0019] In some optional embodiments of the present invention, the transmission rack is connected to the switch door through a first fastener, the switch door includes a mounting flange located on the upper or lower side of the switch door, the fastener includes a head and a fastening portion, and the fastening portion is passed through the mounting flange and the transmission rack; the mating surface is spaced apart from the corresponding mating flange, and the head is spaced apart from the mounting flange, and in the up and down directions, the distance between the head and the mounting flange is smaller than the distance between the mating surface and the corresponding mating flange.

[0020] According to some embodiments of the present invention, the switch door includes a switch door body and a reinforcement plate, and the reinforcement plate is arranged on the inner side of the switch door body.

[0021] According to some optional embodiments of the present invention, the reinforcing plate is detachably connected to the switch door body.

[0022] In some optional embodiments of the present invention, the reinforcing plate is in an elongated strip shape and extends along the length direction of the switch door body, and the reinforcing plate is suitable for being assembled to or removed from the switch door body along the width direction of the switch door body.

[0023] According to some optional embodiments of the present invention, the reinforcing plate is in the shape of an elongated strip and extends along the length direction of the switch door body, the switch door body is provided with a plurality of slots and a plurality of first buckles arranged at intervals along the length direction of the switch door body, the slots and the first buckles are located on both sides of the reinforcing plate in the width direction; the two ends of the reinforcing plate in the width direction are respectively provided with a second buckle cooperating with the slot and a buckle hole cooperating with the first buckle.

[0024] In some optional embodiments of the present invention, a convex rib is formed on the edge of the clamping hole, and the first buckle is in contact with and fits with the inner wall of the clamping hole and the convex rib.

[0025] In some optional embodiments of the present invention, one of the switch door body and the reinforcement plate is provided with a positioning hole and the other is provided with a positioning protrusion that cooperates with the positioning hole, and the positioning hole or the positioning protrusion is located in the middle of the reinforcement plate in the length direction.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 is a schematic structural diagram of an air-conditioning indoor unit according to some embodiments of the present invention;

[0029] Figure 2 yes Figure 1 Exploded view of the indoor unit of the air conditioner;

[0030] Figure 3 is a schematic diagram of the cooperation between a driving assembly and a switch door according to some embodiments of the present invention;

[0031] Figure 4 yes Figure 3 The enlarged view of point A in the middle;

[0032] Figure 5 yes Figure 3 A cross-sectional view of the drive assembly and part of the switch door structure;

[0033] Figure 6 yes Figure 3 Schematic diagram of the structure of the middle drive assembly;

[0034] Figure 7 yes Figure 6 Exploded view of the mid-drive assembly;

[0035] Figure 8 yes Figure 6 A schematic diagram of the middle drive assembly from another angle;

[0036] Fig. 9 is along Figure 8 Sectional view of the middle BB line;

[0037] Fig.10 yes Fig. 9 Enlarged view of point C in the middle;

[0038] Fig.11 is a schematic structural diagram of a transmission rack according to an embodiment of the present invention;

[0039] Fig.12 is a schematic structural diagram of a transmission rack according to another embodiment of the present invention;

[0040] Fig.13 is a schematic structural diagram of a transmission rack according to yet another embodiment of the present invention;

[0041] Fig.14 yes Figure 3 Schematic diagram of the coordination between the drive assembly and the switch door and the front panel;

[0042] Fig.15 yes Fig.14 Enlarged view of point E in the middle;

[0043] Fig.16 yes Fig.14 A schematic diagram of the central door and the front panel from another angle;

[0044] Fig.17 yes Fig.16 The enlarged view of point D in the middle;

[0045] Fig.18 yes Fig.16 A schematic diagram of the structure of the middle panel body;

[0046] Fig.19 yes Fig.18 A schematic diagram of another angle of the middle panel body;

[0047] Fig. 20 yes Fig.19 The enlarged view of F in the middle;

[0048] Fig.21 yes Fig.14 A schematic diagram of the structure of the middle panel bracket;

[0049] Fig. 22 yes Fig.21 Enlarged view of G in the middle;

[0050] Fig.23 is a schematic diagram of the structure of a switch door according to some embodiments of the present invention;

[0051] Fig.24 yes Fig.23 Cross-section of the central opening door;

[0052] Fig.25 yes Fig.24 Enlarged view of L in the middle;

[0053] Fig.26 yes Fig.24 The enlarged view of the H in the middle;

[0054] Fig. 27 yes Fig.23 Exploded view of the central door opening;

[0055] Fig.28 yes Fig. 27 The enlarged view of the M in the middle;

[0056] Fig.29 yes Fig.28 A cross-sectional view of the center reinforcement plate showing the holes and rib structure.

[0057] Reference numerals:

[0058] 100. Air conditioner indoor unit;

[0059] 10. Casing; 11. Front panel; 111. Panel body; 112. Air outlet; 113. Matching flange; 12. Panel bracket; 121. First protrusion; 13. Rear housing; 131. Air inlet; 132. Air inlet grille; 14. Chassis; 15. Top cover;

[0060] 20. Heat exchanger assembly; 21. Heat exchanger; 22. Heat exchanger bracket; 23. Electric auxiliary heating element;

[0061] 30. Air duct assembly; 31. Air duct component; 311. Air duct volute; 312. Wind wheel; 32. Air outlet frame component;

[0062] 40. switch door; 41. switch door body; 411. slot; 412. clamping rib; 413. first buckle; 414. positioning column; 415. second guide column; 416. matching surface; 417. mounting flange; 418. second protrusion; 419. second mounting hole; 42. reinforcing plate; 421. second buckle; 422. clamping hole; 423. convex rib; 424. weight-reducing hole; 425. positioning protrusion;

[0063] 50. Drive assembly;

[0064] 6. driving mechanism; 61. driving motor; 611. motor shaft; 612. motor body; 613. mounting lug; 615. mounting end surface; 62. transmission mechanism; 63. transmission gear; 631. gear shaft; 632. first shaft portion; 633. positioning hole; 634. second shaft portion; 64. transmission rack; 641. mounting column; 642. first mounting hole; 643. first guide column;

[0065] 7. Installation box; 71. First box body; 711. First guide rail; 712. Second guide rail; 72. Second box body; 7a. Vibration reduction structure; 73. First vibration reduction structure; 731. First vibration reduction part; 732. Second vibration reduction part; 733. Third vibration reduction part; 74. Second vibration reduction structure; 741. Vibration reduction main body; 742. Positioning part; 75. Positioning groove; 76. Avoidance through hole; 77. Limiting convex ring; 78. Limiting groove; 79. Third fixing hole;

[0066] 81. First fastener; 811. Head; 812. Fastening portion; 82. Second fastener. DETAILED DESCRIPTION

[0067] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0068] Hereinafter, an air conditioner according to an embodiment of the present invention will be described with reference to the accompanying drawings.

[0069] Reference Figure 1-Figure 3 According to an embodiment of the invention, the air conditioner includes: a casing 10, a heat exchanger assembly 20, an air duct assembly 30 and a driving assembly 50, the casing 10 has an air inlet 131 and an air outlet 112; the heat exchanger assembly 20 and the air duct assembly 30 are arranged in the casing 10; the switch door 40 is movably arranged in the casing 10 to open and close the air outlet 112.

[0070] Reference Figure 3-Figure 9 The driving assembly 50 is arranged in the casing 10, and the driving assembly 50 includes a driving mechanism 6 for driving the switch door 40 to move. The driving mechanism 6 includes a driving motor 61 and a transmission mechanism 62. The transmission mechanism 62 can drively connect the motor shaft 611 of the driving motor 61 and the switch door 40. The transmission mechanism 62 includes a meshing transmission gear 63 and a transmission rack 64. The meshing mode of the transmission gear 63 and the transmission rack 64 is a herringbone meshing mode.

[0071] The transmission mechanism 62 can be transmission-connected to the motor shaft 611 of the driving motor 61 and the switch door 40, and the transmission mechanism 62 can transmit the force of the driving motor 61 to the switch door 40 to drive the switch door 40 to move. For example, the driving motor 61 can drive the transmission gear 63 to rotate, the transmission gear 63 can drive the transmission rack 64 to move, and the movement of the transmission rack 64 can drive the switch door 40 to move.

[0072] The meshing mode of the transmission gear 63 and the transmission rack 64 of the driving mechanism 6 adopts a herringbone meshing mode, which can avoid the defects of small overlap, large meshing clearance and high noise of spur gear meshing, and can also avoid the axial beating defect of the gear caused by the large axial force of the helical gear meshing, and can reduce vibration. Therefore, the meshing mode of the transmission gear 63 and the transmission rack 64 is a herringbone meshing mode, so that the meshing clearance between the transmission gear 63 and the transmission rack 64 is small, the noise is small, and the axial force is small, and the meshing between the transmission gear 63 and the transmission rack 64 is more stable, which can realize low noise and low vibration of the driving mechanism 6, so that the transmission mechanism 62 can be smoothly transmitted, thereby realizing the smooth operation of the driving mechanism 6 driving the switch door 40.

[0073] The transmission gear 63 and the transmission rack 64 are both herringbone gears. Figure 11-13 The herringbone gear can be a herringbone gear with a middle groove or a herringbone gear without a middle groove. The herringbone gear can also be a herringbone gear with displacement, tooth profile modification or tooth direction modification. For example, when the transmission gear 63 is a herringbone gear with a middle groove, the transmission rack 64 is a herringbone rack with a middle groove; when the transmission gear 63 is a herringbone gear without a middle groove, the herringbone rack is a herringbone rack without a middle groove. The tooth shape of the transmission gear 63 should match the tooth shape of the transmission rack 64.

[0074] Continue to refer to Figure 11-13 The herringbone rack can have two forms: left-handed and right-handed. For example, a herringbone rack with a middle groove can be a left-handed herringbone rack; or, a herringbone rack with a middle groove can also be a right-handed herringbone rack; or, a herringbone rack without a middle groove can be a left-handed herringbone rack; or, a herringbone rack without a middle groove can also be a right-handed herringbone rack.

[0075] The meshing of the transmission gear 63 and the transmission rack 64 can be a meshing transmission of a single transmission gear 63 and the transmission rack 64, or a meshing transmission of multiple transmission gears 63 and the transmission rack 64, etc., which is not limited here.

[0076] Reference Figure 1 and Figure 2The air conditioner may be a split floor-standing air conditioner, and the air conditioner may include an air conditioner indoor unit 100 and an air conditioner outdoor unit. For example, the air conditioner indoor unit 100 may be a cabinet unit, and the air conditioner indoor unit 100 may include the above-mentioned housing 10, the heat exchanger assembly 20, the air duct assembly 30, the switch door 40, and the drive assembly 50. The housing 10 may include a chassis 14, a top cover 15, a rear housing 13, and a front panel 11. The chassis 14 is arranged at the bottom of the rear housing 13 and the front panel 11, and the top cover 15 is arranged at the top of the rear housing 13, the front panel 11, the heat exchanger assembly 20, and the air duct assembly 30. The air outlet 112 is formed on the front panel 11, and the air inlet 131 is formed on the rear housing 13. The air inlet grille 132 is also provided at the air inlet 131; the heat exchanger assembly 20 is located at the front side of the air inlet 131, and the air duct assembly 30 is located between the heat exchanger assembly 20 and the air outlet 112, and the air outlet 112 may be connected to the room. Among them, the heat exchanger assembly 20 may include a heat exchanger 21, a heat exchanger bracket 22 and an electric auxiliary heating component 23, and the heat exchanger 21 and the electric auxiliary heating component 23 may be arranged on the heat exchanger bracket 22; the air duct assembly 30 may include an air duct component 31 and an air outlet frame component 32, the air outlet frame component 32 is arranged on the front side of the air duct component 31, and the air duct component 31 includes an air duct volute 311 and a wind wheel 312, and the wind wheel 312 is arranged in the air duct volute 311.

[0077] When the air conditioner is working, air can enter the casing 10 from the air inlet 131, and the air entering the casing 10 can exchange heat with the heat exchanger assembly 20; the driving mechanism 6 drives the switch door 40 to move to open the air outlet 112, and the air after heat exchange is blown into the room from the air outlet 112 under the action of the air duct assembly 30, thereby adjusting the temperature of the indoor space.

[0078] According to the air conditioner of the embodiment of the invention, the meshing mode of the transmission gear 63 and the transmission rack 64 of the transmission mechanism 62 is a herringbone meshing mode, so that the meshing clearance between the transmission gear 63 and the transmission rack 64 is smaller, the noise is smaller, and the axial force is smaller, and the meshing between the transmission gear 63 and the transmission rack 64 is more stable, which can realize low noise and low vibration of the driving mechanism 6, so that the transmission mechanism 62 can be transmitted smoothly, thereby realizing the smooth operation of the driving mechanism 6 driving the opening and closing door 40.

[0079] Reference Fig. 9 and Fig.10 According to some embodiments of the present invention, the transmission gear 63 is arranged on the motor shaft 611, and the transmission rack 64 is detachably connected to the switch door 40, which facilitates the connection and disassembly between the drive mechanism 6 and the switch door 40, and facilitates the replacement or maintenance of the drive mechanism 6 and the switch door 40.

[0080] When the driving motor 61 is working, the motor shaft 611 can transmit the force to the transmission gear 63 and drive the transmission gear 63 to rotate, and the transmission rack 64 is engaged with the transmission gear 63 to drive the switch door 40 to move.

[0081] Reference Figure 3-Figure 5 According to some optional embodiments of the present invention, the transmission rack 64 is connected to the switch door 40 through the first fastener 81 to ensure the stability of the connection between the transmission rack 64 and the switch door 40, so that the driving mechanism 6 can more effectively drive the switch door 40 to move, and the connection method is relatively simple. For example, a mounting column 641 is formed on the transmission rack 64, and a first mounting hole 642 is formed on the mounting column 641. The switch door 40 is provided with a second mounting hole 419 corresponding to the first mounting hole 642. The mounting column 641 is suitable for passing through the second mounting hole 419 on the switch door 40 to position the switch door 40 on the transmission rack 64, and then the first fastener 81 is passed through the first mounting hole 642 and the second mounting hole 419 to achieve a fixed connection between the transmission rack 64 and the switch door 40.

[0082] Reference Figure 6-Figure 9 According to some embodiments of the present invention, the driving assembly 50 includes a mounting box 7, the mounting box 7 is mounted on the outer wall of the air duct assembly 30, at least part of the driving mechanism 6 is located in the mounting box 7, and a vibration reduction structure 7a is provided between at least part of the driving mechanism 6 and the mounting box 7. By providing the vibration reduction structure 7a between the driving mechanism 6 and the mounting box 7, when the driving mechanism 6 is working, the vibration reduction structure 7a can absorb the vibration energy of the driving mechanism 6, play a buffering effect, reduce the vibration transmission between the driving mechanism 6 and the mounting box 7, and thus reduce the noise between the driving mechanism 6 and the mounting box 7.

[0083] At least part of the driving mechanism 6 is located in the installation box 7 , including the following situations: part of the driving mechanism 6 is located in the installation box 7 ; or the driving mechanism 6 is entirely located in the installation box 7 .

[0084] A vibration reduction structure 7a is provided between at least part of the driving mechanism 6 and the installation box 7, including the following situations: a vibration reduction structure 7a is provided between the driving mechanism 6 and the installation box 7; or a vibration reduction structure 7a is provided between a part of the driving mechanism 6 and the installation box 7.

[0085] For example, refer to Figure 3 According to some specific embodiments of the present invention, the driving assembly 50 may include two mounting boxes 7 and two driving mechanisms 6, the two mounting boxes 7 may be installed on the air outlet frame, one mounting box 7 is installed on the bottom of the air outlet frame, and the other mounting box 7 is installed on the top of the air outlet frame, each driving mechanism 6 is arranged in the corresponding mounting box 7, and a part of the driving mechanism 6 is located in the mounting box 7, and a vibration reduction structure 7a is provided between a part of the driving mechanism 6 and the mounting box 7.

[0086] For example, refer to Figure 7 and Fig. 27 According to some optional embodiments of the present invention, the installation box 7 includes a first box body 71 and a second box body 72 arranged along the up-down direction, and a plurality of first guide columns 643 are provided on the upper and lower sides of the transmission rack 64 at intervals along the length direction of the rack. A first guide rail 711 that slidably cooperates with the first guide is provided in the first box body 71 and the second box body 72, and the first guide column 643 can move along the first guide rail 711; second guide columns 415 are provided at the upper and lower ends of the switch door 40, and a second guide rail 712 that slidably cooperates with the second guide column 415 is provided in the second box body 72, and the second guide column 415 can move along the second guide rail 712. When the driving motor 61 drives the transmission gear 63 to rotate, the transmission gear 63 engages with the transmission rack 64, and the first guide column 643 on the transmission rack 64 can slide along the first guide rail 711, thereby realizing the movement of the transmission rack 64; at the same time, the transmission rack 64 transmits power to the switch door 40, and the second guide column 415 on the switch door 40 can slide along the second guide rail 712, thereby realizing the operation of the switch door 40.

[0087] Reference Figure 7 , Fig. 9 and Fig.10 According to some optional embodiments of the present invention, the vibration reduction structure 7a includes a first vibration reduction structure 73, and the first vibration reduction structure 73 is located between the drive motor 61 and the installation box 7. When the drive motor 61 is working, the first vibration reduction structure 73 can absorb the vibration energy of the drive motor 61, play a buffering effect, and reduce the vibration transmission between the drive motor 61 and the installation box 7, thereby reducing the noise between the drive motor 61 and the installation box 7.

[0088] Reference Figure 7-10 In some optional embodiments of the present invention, the motor body 612 of the driving motor 61 is located outside the mounting box 7, the motor body 612 is formed with a mounting lug 613, the first vibration damping structure 73 includes a first vibration damping portion 731, and the first vibration damping portion 731 is provided between the mounting lug 613 and the mounting box 7. The second fastener 82 is suitable for passing through the mounting lug 613, the first vibration damping portion 731 and the mounting box 7, so that the driving motor 61 can be installed and fixed to the mounting box 7, and the first vibration damping portion 731 can be installed and fixed between the mounting lug 613 of the driving motor 61 and the mounting box 7, so that the driving motor 61 and the first vibration damping portion 731 have strong installation stability and the installation method is relatively simple.

[0089] By setting the first vibration damping portion 731 between the mounting lug 613 and the mounting box 7, contact friction between the mounting lug 613 and the mounting box 7 can be avoided. The first vibration damping portion 731 can also absorb the vibration energy of the drive motor 61, thereby playing a buffering effect and reducing the vibration transmission between the mounting lug 613 and the mounting box 7, thereby reducing the noise between the drive motor 61 and the mounting box 7.

[0090] For example, refer to Fig.10 A first fixing hole is formed on the mounting lug 613, a second fixing hole is formed on the first vibration damping portion 731, and a third fixing hole 79 is formed on the mounting box 7. The second fastener 82 is sequentially passed through the first fixing hole, the second fixing hole and the third fixing hole 79 to fix the mounting lug 613, the first vibration damping portion 731 and the mounting box 7 in connection.

[0091] Reference Fig.10 In some optional embodiments of the present invention, the transmission gear 63 is located in the installation box 7, and the gear shaft 631 of the transmission gear 63 includes a first shaft portion 632; the installation box 7 is formed with an avoidance through hole 76, and the avoidance through hole 76 is used to avoid the motor shaft 611 and the first shaft portion 632, the first shaft portion 632 extends into the avoidance through hole 76, and the first shaft portion 632 is connected to the motor shaft 611, and the motor shaft 611 is spaced apart from the inner circumferential wall of the avoidance through hole 76, and the first vibration reduction structure 73 includes a second vibration reduction portion 732, and the second vibration reduction portion 732 is located between the first shaft portion 632 and the inner circumferential wall of the avoidance through hole 76. For example, the first shaft portion 632 has a positioning hole 633, and the motor shaft 611 can be inserted into the positioning hole 633 to connect the first shaft portion 632 with the motor shaft 611.

[0092] When the driving motor 61 is working, the motor shaft 611 can transmit the force to the first shaft portion 632, thereby driving the transmission gear 63 to rotate, and the transmission gear 63 is engaged with the transmission rack 64 to drive the switch door 40 to move.

[0093] By locating the second vibration damping portion 732 between the first shaft portion 632 and the inner circumferential wall of the avoidance through hole 76, the contact area between the first shaft portion 632 and the inner circumferential wall of the avoidance through hole 76 can be reduced, and the friction between the first shaft portion 632 and the inner circumferential wall of the avoidance through hole 76 can be reduced. The second vibration damping portion 732 can absorb the vibration energy of the motor shaft 611 and the first shaft portion 632, and play a buffering effect, thereby reducing the vibration transmission between the first shaft portion 632 and the mounting box 7, thereby reducing the noise between the transmission gear 63 and the mounting box 7, and further reducing the noise between the drive motor 61 and the mounting box 7.

[0094] Reference Fig.10In some optional embodiments of the present invention, the first vibration damping structure 73 includes a third vibration damping portion 733, and the third vibration damping portion 733 is connected between the first vibration damping portion 731 and the second vibration damping portion 732. The axial end face of the motor body 612 adjacent to the mounting box 7 is the mounting end face 615. The third vibration damping portion 733 is located between the mounting end face 615 and the mounting box 7, which can reduce the contact area between the mounting end face 615 and the mounting box 7 or avoid contact between the mounting end face 615 and the mounting box 7, thereby reducing the friction between the mounting end face 615 and the mounting box 7; the second vibration damping portion 732 can also absorb the vibration energy of the motor body 612, play a buffering effect, reduce the vibration transmission between the motor body 612 and the mounting box 7, thereby reducing the noise between the motor body 612 and the mounting box 7, and further reducing the noise between the drive motor 61 and the mounting box 7.

[0095] In some optional embodiments of the present invention, the first vibration damping structure 73 is an integrally molded part, so that the first vibration damping structure 73 is easy to mold and simple to manufacture, and can also ensure the performance stability of the first vibration damping structure 73, which helps to improve the service life of the first vibration damping structure 73; and it eliminates unnecessary assembly parts and connection processes, and the assembly efficiency is higher.

[0096] Reference Fig.10 In some optional embodiments of the present invention, the transmission gear 63 is located in the installation box 7, the gear shaft 631 of the transmission gear 63 includes a second shaft portion 634, the second shaft portion 634 is located at an end of the transmission gear 63 away from the drive motor 61, and the vibration reduction structure 7a includes a second vibration reduction structure 74, and at least a portion of the second vibration reduction structure 74 is located between the second shaft portion 634 and the installation box 7. For example, at least a portion of the second vibration reduction structure 74 is located between the second shaft portion 634 and the installation box 7; or, a portion of the second vibration reduction structure 74 is located between the second shaft portion 634 and the installation box 7.

[0097] By at least partially locating the second vibration damping structure 74 between the second shaft portion 634 and the mounting box 7, the contact area between the limiting convex ring 77 and the transmission gear 63 can be reduced, thereby reducing the friction between the limiting convex ring 77 and the transmission gear 63; the second vibration damping structure 74 can also absorb the vibration energy of the transmission gear 63, thereby achieving a buffering effect and reducing the vibration transmission between the second shaft portion 634 and the mounting box 7, thereby reducing the noise between the transmission gear 63 and the mounting box 7, thereby reducing the noise of the drive assembly 50.

[0098] Reference Fig.10In some optional embodiments of the present invention, a limiting convex ring 77 is provided on the inner wall of the installation box 7, and a limiting groove 78 is defined between the limiting convex ring 77 and the inner wall of the installation box 7. The second shaft portion 634 is accommodated in the limiting groove 78, so that the transmission gear 63 can be positioned in the installation box 7, which helps to enhance the stability of the transmission gear 63. Among them, the second vibration reduction structure 74 includes a vibration reduction body portion 741 and a positioning portion 742. The vibration reduction body portion 741 is located in the limiting groove 78, and the vibration reduction body portion 741 is located between the inner wall of the limiting groove 78 and the second shaft portion 634. A positioning groove 75 is formed on the positioning portion 742, and at least a portion of the limiting convex ring 77 is inserted into the positioning groove 75. For example, the limiting convex ring 77 is inserted into the positioning groove 75; or, a portion of the limiting convex ring 77 is inserted into the positioning groove 75.

[0099] By locating the vibration reduction body 741 between the inner wall of the limiting groove 78 and the second shaft portion 634, the vibration reduction body 741 can absorb the vibration energy of the transmission gear 63, play a buffering effect, reduce the vibration transmission between the second shaft portion 634 and the installation box 7, and thus reduce the noise between the transmission gear 63 and the installation box 7. By inserting at least part of the limiting convex ring 77 into the positioning groove 75, the stability of the cooperation between the second vibration reduction structure 74 and the installation box 7 can be enhanced, and the positioning portion 742 can be located between the limiting convex ring 77 and the transmission gear 63, which can avoid contact friction between the limiting convex ring 77 and the transmission gear 63; the positioning portion 742 can also absorb the vibration energy of the transmission gear 63, play a buffering effect, reduce the vibration transmission between the second shaft portion 634 and the limiting convex ring 77, thereby reducing the noise between the transmission gear 63 and the installation box 7, thereby reducing the noise of the drive assembly 50.

[0100] Reference Figure 17-Figure 20 According to some embodiments of the present invention, the housing 10 extends in the up-down direction, the switch door 40 is movable in the circumferential direction of the housing 10, the upper edge or the lower edge of the air outlet 112 is formed with a matching flange 113, the switch door 40 has a matching surface 416 that matches with the matching flange 113, the matching surface 416 matches with the matching flange 113, and the matching flange 113 is located on the side of the matching surface 416 away from the center of the air outlet 112 in the up-down direction. For example, the upper edge of the air outlet 112 is formed with the matching flange 113, and the matching flange 113 is located on the upper side of the matching surface 416; or, the lower edge of the air outlet 112 is formed with the matching flange 113, and the matching flange 113 is located on the lower side of the matching surface 416. By cooperating with the mating surface 416 and the mating flange 113, the gap between the mating surface 416 and the upper edge or the lower edge of the air outlet 112 can be roughly blocked. When the switch door 40 is closed, external dust is prevented from entering the casing 10 through the gap, thereby ensuring the service life of various components in the casing 10 and ensuring the normal operation of the air conditioner.

[0101] Reference Figure 14-17According to some optional embodiments of the present invention, a first protrusion 121 is provided on the inner side of the casing 10, and the switch door 40 is provided with a second protrusion 418 that cooperates with the first protrusion 121. The first protrusion 121 is located on the upper side or the lower side of the air outlet 112. In the up and down direction, the first protrusion 121 is located on the side of the corresponding second protrusion 418 away from the center of the air outlet 112; the mating surface 416 is spaced apart from the corresponding mating flange 113, and the first protrusion 121 is spaced apart from the second protrusion 418. In the up and down direction, the distance D1 between the first protrusion 121 and the second protrusion 418 is smaller than the distance D2 between the mating surface 416 and the corresponding mating flange 113.

[0102] For example, the first protrusion 121 is located on the upper side of the air outlet 112, the second protrusion 418 is provided on the upper side of the switch door 40, and the second protrusion 418 is located on the lower side of the first protrusion 121; the mating flange 113 is located at the upper edge of the air outlet 112, the mating surface 416 is formed on the upper part of the switch door 40 and the mating surface 416 is located on the lower side of the mating flange 113.

[0103] For another example, the first protrusion 121 is located at the lower side of the air outlet 112, the second protrusion 418 is provided on the lower side of the switch door 40, and the second protrusion 418 is located on the upper side of the first protrusion 121; the mating flange 113 is located at the lower edge of the air outlet 112, the mating surface 416 is formed at the lower part of the switch door 40 and the mating surface 416 is located on the upper side of the mating flange 113.

[0104] For another example, the first protrusions 121 are provided on the upper and lower sides of the air outlet 112, and the second protrusions 418 are provided on the upper and lower sides of the switch door 40. The second protrusion 418 on the upper side of the switch door 40 is located below the first protrusion 121 on the upper side of the air outlet 112, and the second protrusion 418 on the lower side of the switch door 40 is located above the first protrusion 121 on the lower side of the air outlet 112; the upper and lower edges of the air outlet 112 are provided with matching flanges 113, and the upper and lower parts of the switch door 40 are formed with matching surfaces 416. The matching surface 416 of the upper part of the switch door 40 is located on the lower side of the matching flange 113 of the upper edge of the air outlet 112, and the matching surface 416 of the lower part of the switch door 40 is located on the upper side of the matching flange 113 of the lower edge of the air outlet 112.

[0105] Therefore, in the up and down directions, the distance D1 between the first protrusion 121 and the second protrusion 418 is smaller than the distance D2 between the mating surface 416 and the corresponding mating flange 113. When the switch door 40 moves upward or downward, the second protrusion 418 of the switch door 40 first hits the first protrusion 121 on the inner side of the casing 10, which can reduce the impact of the mating surface 416 on the mating flange 113, or avoid the collision between the mating surface 416 and the mating flange 113, thereby avoiding damage to the mating flange 113 and ensuring the function of the mating flange 113.

[0106] Reference Figure 14-15 and Figure 21-22 In some optional embodiments of the present invention, the housing 10 includes a rear housing 13 and a front panel 11, the front panel 11 is arranged at the front side of the rear housing 13, the rear housing 13 is formed with an air inlet 131, the front panel 11 includes a panel body 111 and a panel bracket 12, the panel bracket 12 is arranged at the inner side of the panel body 111, the panel body 111 is formed with an air outlet 112, and the first protrusion 121 is arranged on the panel bracket 12. When the switch door 40 moves upward or downward, the second protrusion 418 of the switch door 40 first hits the first protrusion 121 on the panel bracket 12, which can reduce the impact of the matching surface 416 on the matching flange 113, or can avoid the collision between the matching surface 416 and the matching flange 113, avoid damaging the matching flange 113, and ensure the function of the matching flange 113. Moreover, when the first protrusion 121 is damaged, it will not affect the normal use function of the panel bracket 12.

[0107] Reference Figure 3-Figure 5 In some optional embodiments of the present invention, the transmission rack 64 is connected to the switch door 40 through a first fastener 81. The switch door 40 includes a mounting flange 417 located on the upper side or the lower side of the switch door 40. The first fastener 81 includes a head 811 and a fastening portion 812. The fastening portion 812 is passed through the mounting flange 417 and the transmission rack 64, which can connect the switch door 40 with the transmission rack 64, enhance the stability of the connection between the switch door 40 and the transmission rack 64, and ensure that the switch door 40 can be driven to move when the transmission rack 64 moves.

[0108] The mating surface 416 is spaced apart from the corresponding mating flange 113 , and the head 811 is spaced apart from the mounting flange 417 . In the up and down directions, the distance D3 between the head 811 and the mounting flange 417 is smaller than the distance D2 between the mating surface 416 and the corresponding mating flange 113 .

[0109] For example, the mounting flange 417 is located on the upper side of the switch door 40, the transmission rack 64 is connected to the mounting flange 417 through the first fastener 81, and the head 811 of the first fastener 81 is located above the mounting flange 417; the mating flange 113 is located at the upper edge of the air outlet 112, the mating surface 416 is formed on the upper part of the switch door 40 and the mating surface 416 is located on the lower side of the mating flange 113.

[0110] For another example, the mounting flange 417 is located on the lower side of the switch door 40, the transmission rack 64 is connected to the mounting flange 417 through the first fastener 81, and the head 811 of the first fastener 81 is located below the mounting flange 417; the mating flange 113 is located at the lower edge of the air outlet 112, the mating surface 416 is formed at the lower part of the switch door 40 and the mating surface 416 is located on the upper side of the mating flange 113.

[0111] For another example, the upper and lower sides of the switch door 40 are provided with mounting flanges 417, and the upper and lower ends of the switch door 40 are provided with corresponding driving mechanisms 6 to drive the switch door 40 to move. The mounting flange 417 on the upper side of the switch door 40 is connected to the corresponding transmission rack 64 through the first fastener 81, and the head 811 of the first fastener 81 is located above the mounting flange 417; the mounting flange 417 on the lower side of the switch door 40 is connected to the corresponding transmission rack 64 through the first fastener 81, and the head 811 of the first fastener 81 is located below the mounting flange 417. The upper and lower edges of the air outlet 112 are both provided with mating flanges 113, and the upper and lower parts of the switch door 40 are both formed with mating surfaces 416. The mating surface 416 of the upper part of the switch door 40 is located on the lower side of the mating flange 113 of the upper edge of the air outlet 112, and the mating surface 416 of the lower part of the switch door 40 is located on the upper side of the mating flange 113 of the lower edge of the air outlet 112.

[0112] Therefore, in the up and down directions, the distance D3 between the head 811 and the installation flange 417 is smaller than the distance D2 between the mating surface 416 and the corresponding mating flange 113. When the switch door 40 moves upward or downward, the installation flange 417 first hits the head 811 of the first fastener 81, which can reduce the impact of the mating surface 416 on the mating flange 113, or avoid the collision between the mating surface 416 and the mating flange 113, thereby avoiding damage to the mating flange 113 and ensuring the function of the mating flange 113.

[0113] Reference Fig.23 According to some embodiments of the present invention, the switch door 40 includes a switch door body 41 and a reinforcing plate 42, and the reinforcing plate 42 is arranged on the inner side of the switch door body 41, so as to enhance the overall structural strength of the switch door 40, reduce the deformation of the switch door 40, and improve the service life of the switch door 40.

[0114] Reference Fig. 27 According to some optional embodiments of the present invention, the reinforcing plate 42 is detachably connected to the switch door body 41, which facilitates the disassembly and assembly between the reinforcing plate 42 and the switch door body 41, the maintenance of the switch door body 41, and the maintenance or replacement of the reinforcing plate 42.

[0115] Reference Fig.23In some optional embodiments of the present invention, the reinforcing plate 42 is in the shape of an elongated strip, and the reinforcing plate 42 extends along the length direction of the switch door body 41. The reinforcing plate 42 is suitable for being assembled to the switch door body 41 along the width direction of the switch door body 41, so as to facilitate the installation of the reinforcing plate 42; or, the reinforcing plate 42 is suitable for being removed from the switch door body 41 along the width direction of the switch door body 41, so as to facilitate the removal of the reinforcing plate 42. Therefore, by assembling the reinforcing plate 42 to the switch door body 41 or removing it from the switch door body 41 along the width direction of the switch door body 41, it is convenient to replace or maintain the reinforcing plate 42, and it is convenient for disassembly and assembly operations. The assembly direction of the reinforcing plate 42 to the switch door body 41 can refer to Fig.23 Direction indicated by the arrow.

[0116] For example, according to some specific embodiments of the present invention, the air outlet 112 extends in the up-down direction, and the switch door body 41 extends in the up-down direction. When the switch door 40 closes the air outlet 112, the left side of the switch door body 41 matches with the left edge of the air outlet 112, and the right side of the switch door body 41 matches with the right edge of the air outlet 112, with a matching gap; when the switch door 40 opens the air outlet 112, one side of the switch door body 41 along the width direction matches with the left edge or the right edge of the air outlet 112, with a matching gap. The reinforcing plate 42 can be provided at the left end of the switch door body 41 to enhance the structural strength of the left end of the switch door body 41, avoid deformation of the switch door body 41, and make the size of the matching gap between the switch door body 41 and the left edge or the right edge of the air outlet 112 uniform. Alternatively, the reinforcing plate 42 may be provided at the right end of the switch door body 41 to enhance the structural strength of the right end of the switch door body 41, prevent the switch door body 41 from deforming, and make the size of the matching gap between the switch door body 41 and the left edge or right edge of the air outlet 112 uniform. Alternatively, the reinforcing plate 42 may be provided at the left and right ends of the switch door body 41, so that the structural strength of the left and right ends of the switch door body 41 can be enhanced, and make the size of the matching gap between the switch door body 41 and the left and right edges of the air outlet 112 uniform.

[0117] Reference Figure 23-Figure 26 According to some optional embodiments of the present invention, the reinforcing plate 42 is in a long strip shape, and the reinforcing plate 42 extends along the length direction of the switch door body 41. The switch door body 41 is provided with a plurality of slots 411 and a plurality of first buckles 413. The plurality of slots 411 are arranged at intervals along the length direction of the switch door body 41, and the plurality of first buckles 413 are also arranged at intervals along the length direction of the switch door body 41. The slots 411 and the first buckles 413 are located on both sides of the reinforcing plate 42 in the width direction; the second buckles 421 and the buckle holes 422 are respectively provided at both ends of the reinforcing plate 42 in the width direction, the second buckle 421 cooperates with the slot 411, and the buckle hole 422 cooperates with the first buckle 413.

[0118] When assembling the reinforcing plate 42, the first buckle 413 of the switch door body 41 can be firstly engaged with the engaging hole 422, and then the second buckle 421 of the reinforcing plate 42 can be engaged with the engaging groove 411. By engaging the second buckle 421 with the engaging groove 411 and the first buckle 413 with the engaging hole 422, the reinforcing plate 42 can be connected with the switch door body 41 by being engaged with the engaging groove 411, and the first buckle 413 with the engaging hole 422. The assembly method of the reinforcing plate 42 is relatively simple and convenient to operate.

[0119] For example, refer to Fig.23 and Fig. 27 According to some specific embodiments of the present invention, the reinforcing plate 42 is installed at the left end of the switch door body 41, a first buckle 413 is formed at the left end of the switch door body 41, a card hole 422 is formed at the left end of the reinforcing plate 42, and a second buckle 421 is formed at the right end of the reinforcing plate 42.

[0120] Reference Figure 24-25 and Figure 28-Figure 29 In some optional embodiments of the present invention, a convex rib 423 is formed on the edge of the clamp hole 422, and the first clamp 413 is in contact with the inner wall of the clamp hole 422 and the convex rib 423, which can improve the stability of the fit between the first clamp 413 and the clamp hole 422, thereby improving the stability of the connection between the reinforcing plate 42 and the switch door body 41, and further ensuring the stability and reliability of the overall structure of the switch door 40. In addition, through the contact and fit between the first clamp 413 and the convex rib 423, the area of ​​the fit surface 416 between the first clamp 413 and the reinforcing plate 42 is larger, which helps to reduce stress concentration, reduce friction, and reduce noise.

[0121] For example, refer to Fig.26 In some optional embodiments of the present invention, a clamping rib 412 is provided on the inner wall of the slot 411. When the second clip 421 cooperates with the slot 411, the clamping rib 412 can clamp the second clip 421 in the slot 411, thereby enhancing the stability of the cooperation between the slot 411 and the second clip 421, reducing the possibility of loosening of the reinforcing plate 42 after the reinforcing plate 42 is installed on the switch door body 41, and reducing the noise between the reinforcing plate 42 and the switch door body 41.

[0122] Reference Fig. 27 In some optional embodiments of the present invention, a positioning hole 633 is provided on one of the switch door body 41 and the reinforcement plate 42, and a positioning protrusion 425 matching the positioning hole 633 is provided on the other, and the positioning hole 633 or the positioning protrusion 425 is located in the middle of the length direction of the reinforcement plate 42.

[0123] For example, the switch door body 41 is provided with a positioning hole 633, and the reinforcing plate 42 is provided with a positioning protrusion 425 that cooperates with the positioning hole 633; ​​or, the reinforcing plate 42 is provided with a positioning hole 633, and the switch door body 41 is provided with a positioning protrusion 425 that cooperates with the positioning hole 633.

[0124] Through the cooperation of the positioning hole 633 and the positioning protrusion 425, the reinforcing plate 42 can be positioned on the switch door body 41, which is convenient for installing the reinforcing plate 42 and can further enhance the stability of the reinforcing plate 42 installed on the switch door body 41, thereby further improving the overall stability and reliability of the switch door 40. In addition, the positioning hole 633 or the positioning protrusion 425 is located in the middle of the length direction of the reinforcing plate 42, so that the positioning effect of the reinforcing plate 42 is better.

[0125] Reference Fig.23 and Fig. 27 In some optional embodiments of the present invention, a plurality of weight-reducing holes 424 are provided on the reinforcing plate 42, and the plurality of weight-reducing holes 424 are arranged at intervals along the length direction of the reinforcing plate 42. Thus, while ensuring the structural strength of the switch door 40, the weight of the switch door 40 can be reduced, thereby reducing the output torque of the drive motor 61, which helps to reduce the power consumption of the drive motor 61.

[0126] Refer to the following Figure 1-Figure 29 An air conditioner according to an embodiment of the present invention is described.

[0127] Reference Figure 1-Figure 29 In this embodiment, the air conditioner can be a split floor-standing air conditioner, and the air conditioner includes an air conditioner indoor unit 100 and an air conditioner outdoor unit. The air conditioner indoor unit 100 can be a cabinet unit, and the air conditioner indoor unit 100 includes a casing 10, a heat exchanger assembly 20, an air duct assembly 30, a switch door 40, and a drive assembly 50. The casing 10 extends in the up-down direction, and the switch door 40 is movable along the circumference of the casing 10. The casing 10 includes a chassis 14, a top cover 15, a rear casing 13, and a front panel 11. The front panel 11 is arranged at the front side of the rear casing 13, the chassis 14 is arranged at the bottom of the rear casing 13 and the front panel 11, and the top cover 15 is arranged on the top of the rear casing 13, the front panel 11, the heat exchanger assembly 20, and the air duct assembly 30.

[0128] The housing 10 has an air inlet 131 and an air outlet 112, both of which extend in the up-down direction, and a switch door 40 is movably disposed on the housing 10 to open and close the air outlet 112. The front panel 11 includes a panel body 111 and a panel bracket 12, the panel bracket 12 is disposed on the inner side of the panel body 111, the panel body 111 is formed with the air outlet 112, the air inlet 131 is formed on the rear housing 13, and an air inlet grille 132 is disposed at the air inlet 131.

[0129] The heat exchanger assembly 20 and the air duct assembly 30 are both arranged in the housing 10, the heat exchanger assembly 20 is located at the front side of the air inlet 131, the air duct assembly 30 is located between the heat exchanger assembly 20 and the air outlet 112, and the air outlet 112 is connected to the indoor. The heat exchanger assembly 20 includes a heat exchanger 21, a heat exchanger bracket 22 and an electric auxiliary heating component 23, and the heat exchanger 21 and the electric auxiliary heating component 23 can be arranged on the heat exchanger bracket 22; the air duct assembly 30 includes an air duct component 31 and an air outlet frame component 32, and the air duct component 31 includes an air duct volute 311 and a wind wheel 312, and the wind wheel 312 is arranged in the air duct volute 311. The air outlet frame component 32 is arranged at the front side of the air duct component 31, and the drive assembly 50 is arranged on the outer wall of the air outlet frame component 32.

[0130] The driving assembly 50 includes two driving mechanisms 6 and two mounting boxes 7, and a part of the driving mechanism 6 is located in the mounting box 7. The two driving mechanisms 6 are respectively connected to the upper and lower sides of the switch door 40, and the two driving mechanisms 6 are used together to drive the switch door 40 to move. The driving mechanism 6 includes a driving motor 61 and a transmission mechanism 62. The driving motor 61 includes a motor body 612 and a motor shaft 611. The motor shaft 611 is located in the mounting box 7, and the motor body 612 is located outside the mounting box 7. The motor body 612 is formed with a mounting lug 613. The transmission mechanism 62 can driveably connect the motor shaft 611 of the driving motor 61 with the switch door 40. The transmission mechanism 62 includes a transmission gear 63 and a transmission rack 64. The transmission gear 63 and the transmission rack 64 are meshed, and the meshing mode of the transmission gear 63 and the transmission rack 64 is a herringbone meshing mode.

[0131] The transmission rack 64 is formed with a mounting post 641, and a first mounting hole 642 is formed on the mounting post 641. The switch door 40 includes a mounting flange 417 located on the upper side of the switch door 40, and a second mounting hole 419 corresponding to the first mounting hole 642 is provided on the mounting flange 417. The mounting post 641 is suitable for passing through the second mounting hole 419 on the switch door 40 to position the switch door 40 on the transmission rack 64. The first fastener 81 is suitable for passing through the first mounting hole 642 and the second mounting hole 419 to fix the transmission rack 64 with the switch door 40, and the transmission rack 64 and the switch door 40 are detachably connected. The first fastener 81 includes a head 811 and a fastening portion 812, and the fastening portion 812 is passed through the mounting flange 417 and the transmission rack 64, and the head 811 is spaced apart from the mounting flange 417.

[0132] The installation box 7 includes a first box body 71 and a second box body 72 arranged in the up-down direction, a plurality of first guide posts 643 arranged at intervals in the length direction of the rack are provided on both the upper and lower sides of the transmission rack 64, a first guide rail 711 slidably matched with the first guide is provided in the first box body 71 and the second box body 72, a second guide post 415 is provided at both the upper and lower ends of the switch door 40, and a second guide rail 712 slidably matched with the second guide post 415 is provided in the second box body 72. When the driving motor 61 drives the transmission gear 63 to rotate, the first guide post 643 can move along the first guide rail 711, and the second guide post 415 can move along the second guide rail 712.

[0133] The transmission gear 63 is located in the installation box 7. The gear shaft 631 of the transmission gear 63 includes a first shaft portion 632 and a second shaft portion 634. The second shaft portion 634 is located at an end of the transmission gear 63 away from the drive motor 61. The installation box 7 is formed with an avoidance through hole 76, which is used to avoid the motor shaft 611 and the first shaft portion 632. The first shaft portion 632 extends into the avoidance through hole 76. The first shaft portion 632 has a positioning hole 633. The motor shaft 611 can be inserted into the positioning hole 633 to connect the first shaft portion 632 with the motor shaft 611. The motor shaft 611 is spaced apart from the inner circumferential wall of the avoidance through hole 76. The inner wall of the installation box 7 is provided with a limiting convex ring 77. A limiting groove 78 is defined between the limiting convex ring 77 and the inner wall of the installation box 7. The second shaft portion 634 is accommodated in the limiting groove 78.

[0134] A vibration reduction structure 7a is provided between a part of the driving mechanism 6 and the mounting box 7. The vibration reduction structure 7a includes a first vibration reduction structure 73 and a second vibration reduction structure 74. The first vibration reduction structure 73 is an integrally formed part, and the second vibration reduction structure 74 is also an integrally formed part. The first vibration reduction structure 73 includes a first vibration reduction portion 731, a second vibration reduction portion 732, and a third vibration reduction portion 733. The first vibration reduction structure 73 is located between the driving motor 61 and the mounting box 7.

[0135] The first vibration damping part 731 is arranged between the mounting lug 613 and the mounting box 7, a first fixing hole is formed on the mounting lug 613, a second fixing hole is formed on the first vibration damping part 731, a third fixing hole 79 is formed on the mounting box 7, and the second fastener 82 is sequentially penetrated through the first fixing hole, the second fixing hole and the third fixing hole 79 to fix the mounting lug 613, the first vibration damping part 731 and the mounting box 7. The second vibration damping part 732 is located between the first shaft part 632 and the inner peripheral wall of the avoidance through hole 76, the third vibration damping part 733 is connected between the first vibration damping part 731 and the second vibration damping part 732, the axial end face of the motor body 612 adjacent to the mounting box 7 is the mounting end face 615, and the third vibration damping part 733 is located between the mounting end face 615 and the mounting box 7.

[0136] The second vibration damping structure 74 includes a vibration damping main body 741 and a positioning portion 742. The vibration damping main body 741 is located in the limiting groove 78, and the vibration damping main body 741 is located between the inner wall of the limiting groove 78 and the second shaft portion 634. A positioning groove 75 is formed on the positioning portion 742, and a portion of the limiting convex ring 77 is inserted into the positioning groove 75.

[0137] The upper edge of the air outlet 112 is formed with a matching flange 113, and the switch door 40 has a matching surface 416 that matches the matching flange 113. The matching surface 416 matches the matching flange 113, and the matching flange 113 is located on the upper side of the matching surface 416. The inner side of the panel bracket 12 is provided with a first protrusion 121, and the switch door 40 is provided with a second protrusion 418 that matches the first protrusion 121. The first protrusion 121 is located on the upper side of the air outlet 112, and the second protrusion 418 is located on the lower side of the first protrusion 121. The mating surface 416 is spaced apart from the corresponding mating flange 113, and the first protrusion 121 is spaced apart from the second protrusion 418. In the up and down directions, the distance D1 between the first protrusion 121 and the second protrusion 418 is smaller than the distance D2 between the mating surface 416 and the corresponding mating flange 113, and the distance D3 between the head 811 and the installation flange 417 is smaller than the distance D2 between the mating surface 416 and the corresponding mating flange 113.

[0138] The switch door 40 includes a switch door body 41 and a reinforcing plate 42. The reinforcing plate 42 is disposed inside the switch door body 41 and is located at one end of the switch door body 41 along the width direction. The reinforcing plate 42 is in a long strip shape and extends along the length direction of the switch door body 41. The reinforcing plate 42 is provided with a plurality of weight-reducing holes 424, which are arranged at intervals along the length direction of the reinforcing plate 42. The reinforcing plate 42 is suitable for being assembled to the switch door body 41 along the width direction of the switch door body 41, and the reinforcing plate 42 is suitable for being removed from the switch door body 41 along the width direction of the switch door body 41.

[0139] The reinforcing plate 42 is detachably connected to the switch door body 41, and a positioning hole 633 is provided on the reinforcing plate 42. A positioning protrusion 425 is provided on the switch door body 41, and the positioning protrusion 425 is suitable for being inserted into the positioning hole 633. The switch door body 41 is provided with a plurality of slots 411 and a plurality of first buckles 413, and the plurality of slots 411 are arranged at intervals along the length direction of the switch door body 41, and the plurality of first buckles 413 are also arranged at intervals along the length direction of the switch door body 41, and the slots 411 and the first buckles 413 are located on both sides of the reinforcing plate 42 in the width direction; the two ends of the reinforcing plate 42 in the width direction are respectively provided with a second buckle 421 and a hole 422, and the second buckle 421 is engaged with the slot 411, and the hole 422 is engaged with the first buckle 413, so as to fix the reinforcing plate 42 to the switch door body 41.

[0140] When assembling the reinforcing plate 42, firstly, the first buckle 413 of the switch door body 41 is buckled with the buckle hole 422, then the positioning protrusion 425 is inserted into the positioning hole 633, and finally, the second buckle 421 of the reinforcing plate 42 is buckled into the buckle slot 411. The edge of the buckle hole 422 is formed with a convex rib 423, and when the first buckle 413 contacts and cooperates with the inner wall of the buckle hole 422, the first buckle 413 and the convex rib 423 are also contacted and cooperated; the inner wall of the buckle slot 411 is provided with a clamping rib 412, and when the second buckle 421 contacts and cooperates with the buckle slot 411, the clamping rib 412 is used to clamp the second buckle 421 in the buckle slot 411.

[0141] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0142] In the description of the present invention, "plurality" means two or more.

[0143] In the description of the present invention, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0144] In the description of the present invention, “on”, “over” and “above” a first feature from a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0145] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0146] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. An air conditioner, characterized in that: include: A housing having an air inlet and an air outlet; The heat exchanger assembly and the air duct assembly are arranged in the casing; A switch door, movably disposed on the housing to open and close the air outlet; A drive assembly is disposed in the housing and includes a drive mechanism for driving the switch door to move. The drive mechanism includes a drive motor and a transmission mechanism. The transmission mechanism can drively connect the motor shaft of the drive motor with the switch door. The transmission mechanism includes a meshing transmission gear and a transmission rack. The meshing mode of the transmission gear and the transmission rack is a herringbone meshing mode.

2. The air conditioner according to claim 1, characterized in that: The transmission gear is arranged on the motor shaft, and the transmission rack is detachably connected to the switch door.

3. The air conditioner according to claim 2, characterized in that: The transmission rack is connected to the switch door via a first fastener.

4. The air conditioner according to claim 1, characterized in that: The driving assembly comprises a mounting box, the mounting box is mounted on the outer wall of the air duct assembly, at least part of the driving mechanism is located in the mounting box, and a vibration reduction structure is provided between at least part of the driving mechanism and the mounting box.

5. The air conditioner according to claim 4, characterized in that: The vibration reduction structure includes a first vibration reduction structure, and the first vibration reduction structure is located between the driving motor and the mounting box.

6. The air conditioner according to claim 5, characterized in that: The motor body of the driving motor is located outside the mounting box, the motor body is formed with a mounting lug, the first vibration damping structure includes a first vibration damping portion, a first vibration damping portion is provided between the mounting lug and the mounting box, and a second fastener is suitable for passing through the mounting lug, the first vibration damping portion and the mounting box.

7. The air conditioner according to claim 6, characterized in that: The transmission gear is located in the installation box, the gear shaft of the transmission gear includes a first shaft portion, and an avoidance through hole for avoiding the motor shaft and the first shaft portion is formed on the installation box. The first shaft portion extends into the avoidance through hole and is connected to the motor shaft. The motor shaft is spaced apart from the inner circumferential wall of the avoidance through hole. The first vibration damping structure includes a second vibration damping portion, and the second vibration damping portion is located between the first shaft portion and the inner circumferential wall of the avoidance through hole.

8. The air conditioner according to claim 7, characterized in that: The first vibration damping structure includes a third vibration damping portion, which is connected between the first vibration damping portion and the second vibration damping portion. The axial end face of the motor body adjacent to the mounting box is a mounting end face, and the third vibration damping portion is located between the mounting end face and the mounting box.

9. The air conditioner according to claim 6, characterized in that: The first vibration reduction structure is an integrally formed part.

10. The air conditioner according to claim 6, characterized in that: The transmission gear is located in the installation box, the gear shaft of the transmission gear includes a second shaft portion, the second shaft portion is located at an end of the transmission gear away from the drive motor, and the vibration damping structure includes a second vibration damping structure, at least part of the second vibration damping structure is located between the second shaft portion and the installation box.

11. The air conditioner according to claim 10, characterized in that: The inner wall of the installation box is provided with a limiting convex ring, a limiting groove is defined between the limiting convex ring and the inner wall of the installation box, and the second shaft portion is accommodated in the limiting groove; Among them, the second vibration damping structure includes a vibration damping body and a positioning part, the vibration damping body is located in the limiting groove and between the inner wall of the limiting groove and the second shaft part, a positioning groove is formed on the positioning part, and at least a part of the limiting convex ring is inserted into the positioning groove.

12. The air conditioner according to claim 1, characterized in that: The casing extends in the up-down direction, the switch door is movable along the circumference of the casing, a mating flange is formed on the upper edge or the lower edge of the air outlet, the switch door has a mating surface mating with the mating flange, the mating surface mating with the mating flange, and the mating flange is located on the side of the mating surface away from the center of the air outlet in the up-down direction.

13. The air conditioner according to claim 12, characterized in that: The inner side of the housing is provided with a first protrusion, the switch door is provided with a second protrusion matched with the first protrusion, the first protrusion is located on the upper side or the lower side of the air outlet, and in the up and down direction, the first protrusion is located on the side of the corresponding second protrusion away from the center of the air outlet; The mating surface is spaced apart from the corresponding mating flange, the first protrusion is spaced apart from the second protrusion, and in the up and down directions, the distance between the first protrusion and the second protrusion is smaller than the distance between the mating surface and the corresponding mating flange.

14. The air conditioner according to claim 13, characterized in that: The casing includes a rear shell and a front panel, the front panel is arranged on the front side of the rear shell, the rear shell is formed with the air inlet, the front panel includes a panel body and a panel bracket, the panel bracket is arranged on the inner side of the panel body, the panel body is formed with the air outlet, and the first protrusion is arranged on the panel bracket.

15. The air conditioner according to claim 12, characterized in that: The transmission rack is connected to the switch door via a first fastener, the switch door comprises a mounting flange located on the upper side or the lower side of the switch door, the first fastener comprises a head and a fastening portion, the fastening portion is passed through the mounting flange and the transmission rack; The mating surface is spaced apart from the corresponding mating flange, and the head is spaced apart from the installation flange. In the up and down directions, the distance between the head and the installation flange is smaller than the distance between the mating surface and the corresponding mating flange.

16. The air conditioner according to any one of claims 1 to 15, characterized in that: The switch door comprises a switch door body and a reinforcing plate, and the reinforcing plate is arranged on the inner side of the switch door body.

17. The air conditioner according to claim 16, characterized in that: The reinforcing plate is detachably connected to the switch door body.

18. The air conditioner according to claim 17, characterized in that: The reinforcing plate is in the shape of an elongated strip and extends along the length direction of the switch door body. The reinforcing plate is suitable for being assembled to or removed from the switch door body along the width direction of the switch door body.

19. The air conditioner according to claim 16, characterized in that: The reinforcing plate is in an elongated strip shape and extends along the length direction of the switch door body. The switch door body is provided with a plurality of slots and a plurality of first buckles arranged at intervals along the length direction of the switch door body. The slots and the first buckles are located on both sides of the reinforcing plate in the width direction. Two ends of the reinforcing plate in the width direction are respectively provided with a second buckle matched with the buckle slot and a buckle hole matched with the first buckle.

20. The air conditioner according to claim 19, characterized in that: The edge of the clamping hole is formed with a convex rib, and the first clamping buckle is in contact with and fits with the inner wall of the clamping hole and the convex rib.

21. The air conditioner according to claim 19, characterized in that: One of the switch door body and the reinforcement plate is provided with a positioning hole and the other is provided with a positioning protrusion matched with the positioning hole, and the positioning hole or the positioning protrusion is located in the middle of the reinforcement plate in the length direction.

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