Base assembly and cabinet air conditioner

Abstract

This utility model relates to a base assembly and an air conditioner cabinet in the field of air conditioning technology. The base assembly for an air conditioner cabinet includes: a base, comprising a chassis and a support frame, wherein the support frame is disposed on the chassis; multiple rolling elements distributed circumferentially on the upper surface of the chassis; multiple first rotating members rotatably distributed circumferentially at the top of the support frame; each first rotating member having a circumferential limiting structure and an axial limiting structure; and an air outlet frame fitted onto the outside of the support frame, with its bottom rotatably disposed on the chassis via cooperation with the rolling elements, and its top calibrating the circumferential and limiting motions of the air outlet frame during rotation through cooperation with the circumferential and axial limiting structures of the first rotating members.

Description

Technical Field

[0001] This utility model relates to the field of air conditioner cabinet technology, and in particular to a base assembly and an air conditioner cabinet. Background Technology

[0002] In the field of air conditioning technology, taking floor-standing air conditioners as an example, the bottom air outlet is often designed as a rotatable base component to ensure aesthetic appearance. When the air conditioner is not turned on, the bottom air outlet is hidden on the back of the unit and cannot be seen by the user. When the air conditioner is turned on, the bottom air outlet rotates 180° to the front of the unit to allow air to flow from the bottom.

[0003] In traditional rotating base components, the rotatable air outlet frame may experience unstable rotation or up-and-down movement due to its own dimensional accuracy and other factors during rotation, resulting in poor motion reliability. Utility Model Content

[0004] The technical problem to be solved by this utility model is to overcome the technical problem in the related art that the rotatable air outlet frame part in the cabinet air conditioner rotating base component will rotate unevenly or move up and down due to the influence of its own dimensional accuracy and other factors during the rotation process, resulting in poor motion reliability. The present invention provides a base component and an air conditioner cabinet.

[0005] This utility model aims to provide a base assembly for an air conditioner cabinet unit, comprising:

[0006] The base includes a chassis and a support frame, wherein the support frame is disposed on the chassis.

[0007] Multiple rolling elements are provided and distributed along the circumference of the chassis on the upper surface of the chassis.

[0008] Multiple first rotating components are provided, and the multiple first rotating components are rotatably distributed at the top of the support frame in a circumferential direction; each first rotating component has a circumferential limiting structure and an axial limiting structure.

[0009] An air outlet frame is sleeved on the outside of the support frame. The bottom of the air outlet frame is rotatably mounted on the chassis by cooperating with the rolling element. The top of the air outlet frame is calibrated for circumferential movement and limited for axial movement during rotation by cooperating with the circumferential and axial limiting structures of the first rotating component.

[0010] In some embodiments, the circumferential limiting structure has a circumferential limiting surface, the axial limiting structure has an axial limiting surface, the inner side of the air outlet frame has a circumferential mating surface and an axial mating surface, the circumferential mating surface of the air outlet frame is clearance-fitted with the circumferential limiting surfaces of the plurality of first rotating components to achieve circumferential motion calibration during the rotation of the air outlet frame, and the axial mating surface of the air outlet frame is clearance-fitted with the axial limiting surfaces of the plurality of first rotating components to achieve axial motion limiting during the rotation of the air outlet frame.

[0011] In some embodiments, the first rotating member includes a first ring and a second ring, the outer diameter of the first ring is larger than the outer diameter of the second ring, the first ring and the second ring form a stepped structure, the axial limiting surface includes the bottom surface of the first ring at the bottom and the top surface of the first ring at the top, and the circumferential limiting surface includes the outer circumferential surface of the first ring and the outer circumferential surface of the second ring.

[0012] The circumferential mating surface includes a first circumferential mating surface and a second circumferential mating surface;

[0013] The axial mating surface includes a first axial mating surface and a second axial mating surface;

[0014] The top of the air outlet frame has an annular frame, and an inner groove is provided on the inner side of the inner wall of the annular frame. The circumferential wall surface of the inner groove forms the first circumferential mating surface, and the inner wall surface of the annular frame forms the second circumferential mating surface. The outer circumferential surface of the first ring is in clearance fit with the first circumferential mating surface, and the outer circumferential surface of the second ring is in clearance fit with the second circumferential mating surface.

[0015] In some embodiments, the inner wall of the annular frame is provided with a bottom support portion inside the inner groove, the bottom support portion extends toward the interior of the annular frame to protrude from the inner wall surface of the annular frame, the bottom support portion is located at the bottom of the first ring, the top surface of the bottom support portion constitutes the first axial mating surface, and the horizontal wall surface of the inner groove at the top of the first ring constitutes the second axial mating surface.

[0016] The bottom surface of the first ring is in clearance fit with the first axial mating surface, and the top surface of the first ring is in clearance fit with the second axial mating surface.

[0017] In some embodiments, the base assembly further includes a first support member, the first support member including a first cylinder, the lower end of the first cylinder being connected to a support frame, and the upper end forming a first limiting protrusion protruding from the peripheral sidewall of the first cylinder. The first cylinder has a second cavity extending downward and penetrating the peripheral sidewall of the first cylinder along its upper end. The second cavity divides the first cylinder into a plurality of first sub-parts, and the plurality of first sub-parts are deformable to accommodate the first rotating member.

[0018] The first rotating component is rotatably sleeved on the outside of the first cylinder, and the first limiting protrusion limits the first rotating component from disengaging.

[0019] In some embodiments, the support frame has a front opening;

[0020] The air outlet frame is provided with a vent and a sealing part; by rotating the air outlet frame, the vent can be rotated to the front side of the support frame to communicate with the front opening, or the vent can be rotated to the rear side of the support frame to close the front opening with the sealing part.

[0021] In some embodiments, a plurality of third support members are provided on the chassis along the circumferential direction, and the rolling element is rotatably mounted on the third support member;

[0022] The lower end of the air outlet frame has a first mating end, and the rolling element rolls in contact with the first mating end to achieve axial support for the air outlet frame.

[0023] In some embodiments, the third support member is constructed as a hollow column, the top of the third support member has a plurality of claws arranged circumferentially, the inner side of the claws encloses a receiving cavity, the receiving cavity is connected to the hollow portion of the hollow body, the rolling element is rotatably disposed in the receiving cavity, and at least partially protrudes from the top of the receiving cavity.

[0024] In some embodiments, the rolling element is configured as a ball;

[0025] The plurality of jaws includes a plurality of first jaws and a plurality of second jaws;

[0026] The plurality of first jaws constitute the lower port of the receiving chamber, the plurality of second jaws constitute the upper port of the receiving chamber, the diameter of the lower port is R1, the diameter of the upper port is R2, and the diameter of the ball is R3.

[0027] Among them, R3 > R1, R3 > R2.

[0028] In some embodiments, a plurality of second rotating members are rotatably provided on the chassis along the circumferential direction;

[0029] The lower end of the air outlet frame has a second mating end, and the second rotating component is clearance-fitted with the second mating end to achieve circumferential motion calibration of the bottom during the rotation of the air outlet frame.

[0030] In some embodiments, a plurality of second support members are provided on the chassis along the circumferential direction, and the second rotating member is rotatably disposed on the second support members;

[0031] The second support member includes a second cylinder, the lower end of which is connected to the base, and the upper end of which has a second limiting protrusion protruding from the side wall of the cylinder. The second cylinder has a first cavity extending downward and penetrating the circumferential side wall of the second cylinder along its upper end. The first cavity divides the second cylinder into multiple second sub-parts, and the multiple second sub-parts can be deformed to realize the fitting of the second rotating member.

[0032] The second rotating component includes a third ring, which is rotatably sleeved on the outside of the second cylinder, and the second limiting protrusion limits the third ring from dislodging.

[0033] In some embodiments, both the second rotating member and the first rotating member are configured as damped rotating members.

[0034] In some embodiments, the second support member is disposed close to the third support member, and the first support member and the second support member are staggered along the circumferential direction of the base.

[0035] In some embodiments, the support frame is provided with a sealing element for sealing the gap between the support member and the air outlet frame.

[0036] In some embodiments, the sealing element includes a first connecting plate and a flexible strip connected to the first connecting plate, the first connecting plate being connected to the support frame, and the flexible strip being interference-fitted with the inner sidewall of the air outlet frame.

[0037] In some embodiments, the air outlet frame includes an inner frame and an outer panel, the outer panel having an air outlet, and the outer panel being connected to the outer side of the inner frame.

[0038] In some embodiments, a first annular protrusion is formed at the lower end of the inner skeleton;

[0039] A second annular groove is formed on the first annular protrusion. The axial wall surface of the second annular groove forms a first mating end, and the radial wall surface forms a second mating end.

[0040] In some embodiments, a second annular protrusion is formed at the upper end of the inner skeleton;

[0041] The second ring protrusion is provided with a pre-positioning post and a first positioning hole, and the outer panel is provided with a pre-positioning hole corresponding to the pre-positioning post and a second positioning hole corresponding to the first positioning hole.

[0042] In some embodiments, an air conditioning unit is provided, comprising:

[0043] The aforementioned base components;

[0044] A drive assembly is disposed on the base and is connected to the air outlet frame for driving the air outlet frame to rotate on the base.

[0045] The solution provided by this utility model has the following advantages compared with the prior art:

[0046] By setting a first support member and a first rotating member on the base, the upper end of the air outlet frame can be supported. Multiple rings of different diameters in the first rotating member, which form a stepped structure, can work together to correct the circumferential movement of the upper end of the air outlet frame. At the same time, the larger diameter ring can contact the axial mating surface to provide axial support and limit the air outlet frame, preventing the air outlet frame from moving axially and preventing the air outlet frame from falling off the base during movement. Attached Figure Description

[0047] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0048] Figure 1 This is an exploded view of the base assembly shown in an embodiment of the present invention;

[0049] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0050] Figure 3 yes Figure 1 Enlarged view at point B in the middle;

[0051] Figure 4 This is an exploded view of the annular plate shown in an embodiment of the present invention;

[0052] Figure 5 This is a top view of the annular plate shown in an embodiment of the present invention;

[0053] Figure 6 yes Figure 5 Enlarged view at point C;

[0054] Figure 7 This is a front view of the base assembly shown in an embodiment of the present invention;

[0055] Figure 8 yes Figure 7 Sectional view along the AA direction;

[0056] Figure 9 yes Figure 8 Enlarged view at point D;

[0057] Figure 10 This is a top view of the first support member and the first rolling member shown in an embodiment of the present invention;

[0058] Figure 11 yes Figure 10 Sectional view along the BB direction;

[0059] Figure 12 yes Figure 10 Sectional view along the CC direction;

[0060] Figure 13 This is a top view of the first support member shown in an embodiment of the present invention;

[0061] Figure 14 This is a cross-sectional view of the first support member shown in an embodiment of the present invention;

[0062] Figure 15 This is one of the cross-sectional views of the base assembly shown in this embodiment of the utility model;

[0063] Figure 16 yes Figure 15 Enlarged view at point E in the middle;

[0064] Figure 17 This is a front view of the second support member shown in an embodiment of the present invention;

[0065] Figure 18 This is a cross-sectional view of the third support member shown in an embodiment of this utility model;

[0066] Figure 19 This is a second cross-sectional view of the base assembly shown in an embodiment of this utility model;

[0067] Figure 20 yes Figure 19 Enlarged view at point F;

[0068] Figure 21 yes Figure 20 A schematic diagram showing the removal of the first rotating component 9;

[0069] Figure 22 This is one of the main views of the base, support frame, and seal shown in this embodiment of the utility model;

[0070] Figure 23 This is a top view of the base shown in an embodiment of the present invention;

[0071] Figure 24 yes Figure 22 Enlarged view at point G;

[0072] Figure 25 This is the second main view of the base, support frame, and sealing element shown in this embodiment of the utility model;

[0073] Figure 26 yes Figure 25 Enlarged view at point H;

[0074] Figure 27 This is one of the top views of the base and support frame shown in this embodiment of the utility model;

[0075] Figure 28 This is a second top view of the base and support frame shown in this embodiment of the utility model;

[0076] Figure 29 yes Figure 28 Enlarged view of section I in the middle.

[0077] In the diagram: 1-Chassis, 2-Third support member, 201-Groove, 202-First claw, 203-Second claw, 3-Rolling element, 4-Second support member, 401-First cylinder, 4011-First cavity, 402-First limiting protrusion, 5-Second rotating member, 6-Air outlet frame, 601-Inner frame, 602-Outer panel, 603-Air outlet, 604-Pre-positioning post, 605-First positioning hole, 606-Pre-positioning hole, 607-Second positioning hole, 608-First annular protrusion, 609-Second annular groove, 610-First mating end, 611-Second mating end, 612-Ring tooth, 613-Second annular protrusion, 614-Inner groove, 615-Bottom support, 6 16-First circumferential mating surface, 617-Second circumferential mating surface, 618-First axial mating surface, 619-Second axial mating surface, 7-Support frame, 8-First support member, 801-Second cylinder, 8011-Second cavity, 802-Second limiting protrusion, 9-First rotating member, 901-First ring, 902-Second ring, 903-Bottom surface of first ring, 904-Outer circumferential surface of first ring, 905-Outer circumferential surface of second ring, 906-Top surface of first ring, 10-Sealing member, 101-First connecting plate, 102-Flexible strip, 11-Drive assembly, 111-Drive motor, 112-Drive gear, 13-Second connecting plate, 14-Snap fastener, 15-Slot.

[0078] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0079] In the description of this utility model, it should be noted that the terms "inner" and "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0080] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," "contact," and "communication" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0081] In the related technologies of air conditioner cabinet units, the rotatable air outlet frame in the base component is affected by its own dimensional accuracy, such as inaccurate flatness of the moving surface, and other factors during rotation, which may cause unstable rotation or up-and-down movement, resulting in poor reliability of movement.

[0082] Based on this, the following embodiments are proposed:

[0083] Example 1

[0084] This embodiment provides a base assembly for an air conditioner cabinet unit, including:

[0085] The base includes a chassis 1 and a support frame 7, wherein the support frame 7 is mounted on the chassis 1.

[0086] Multiple rolling elements 3 are provided and distributed along the circumference of the chassis 1 on the upper surface of the chassis 1.

[0087] Multiple first rotating members 9 are provided, and the multiple first rotating members 9 are rotatably distributed at the top of the support frame 7 in the circumferential direction; each first rotating member 9 has a circumferential limiting structure and an axial limiting structure.

[0088] The air outlet frame 6 is sleeved on the outside of the support frame 7. The bottom of the air outlet frame 6 is rotatably mounted on the chassis 1 through cooperation with the rolling element 3. The top of the air outlet frame 6 achieves circumferential motion calibration and axial motion limitation during the rotation process by cooperating with the circumferential limiting structure and axial limiting structure of the first rotating component 9.

[0089] In this embodiment, as Figure 1As shown, a base assembly for an air conditioner cabinet unit includes a base, an air outlet frame 6, rolling elements 3, and first rotating members 9. The air outlet frame 6 is disposed on the base and sleeved on the outside of a support frame 7, and can rotate relative to the base. Multiple first rotating members 9 are evenly spaced and circumferentially distributed at the top of the support frame 7, ensuring that each first rotating member 9 experiences the same force, further guaranteeing the stability of the air outlet frame 6 during movement. The first rotating members 9 can rotate on a first support member 8.

[0090] like Figure 3 As shown, taking the first rotating component 9, which includes multiple coaxially arranged rings, as an example, the multiple coaxially arranged rings can all contact the air outlet frame 6 during its rotation. The first rotating component 9 can rotate 360 ​​degrees following the direction of movement of the air outlet frame 6. The multiple rings are stacked together to form a rotatable stepped structure, meaning that the diameters of the multiple rings are different, so the multiple rings can contact different positions on the inner sidewall of the air outlet frame 6 respectively.

[0091] like Figure 20 As shown, multiple mating surfaces are provided on the inner wall of the air outlet frame 6, including circumferential mating surfaces and axial mating surfaces. The stepped structure, i.e., the circumferential limiting structure and the axial limiting structure of the first rotating member 9, have gaps with the circumferential mating surfaces and the axial mating surfaces, respectively. Specifically, the sidewall of the smaller diameter ring in the stepped structure corresponds to one of the circumferential mating surfaces on the inner wall of the air outlet frame 6, and the top wall and sidewall of the larger diameter ring in the stepped structure correspond to one axial mating surface and another circumferential mating surface on the inner wall of the air outlet frame 6, respectively. When the air outlet frame 6 rotates, due to its own dimensional accuracy or other external factors, its rotation on the chassis 1 is often unstable. By designing the first rotating component 9, a circumferential limiting structure is formed to contact the circumferential mating surface, correcting the circumferential motion of the air outlet frame 6. The top wall of the larger diameter ring corresponds to the axial mating surface, so the larger diameter ring can extend below the axial mating surface, and their vertical projections overlap. When the air outlet frame 6 rotates, the side wall of the larger diameter ring can contact not only the circumferential mating surface but also the axial mating surface. When the side wall of the larger diameter ring contacts the circumferential mating surface, it can correct the circumferential motion of the upper end of the air outlet frame 6. When the top wall of the larger diameter ring contacts the axial mating surface, it can support and limit the air outlet frame 6, restricting its vertical movement and preventing the air outlet frame 6 from axially shifting during movement.

[0092] like Figure 2 As shown, a support frame 7 protruding upwards is formed on the chassis 1, an air outlet frame 6 is arranged around the outside of the support frame 7, and a first support member 8 is connected to the support frame 7 to form a gap with the chassis 1 in the height direction.

[0093] In this embodiment, the chassis 1 extends upward to form a protruding support frame 7. The support frame 7 can be frustoconical. The air outlet frame 6 is sleeved on the outer surface of the support frame 7. The support frame 7 not only makes the rotation of the air outlet frame 6 more stable, but also provides a better connection position for the first rotating member 9. The first rotating member 9 is located on the support frame 7. The first rotating member 9 and the chassis 1 form a gap in the height direction, so that the first rotating member 9 can form a support point and a limiting point for the upper position of the air outlet frame 6, which is more prone to unstable rotation, thereby better playing the role of the first rotating member 9 in calibrating, supporting and limiting the air outlet frame 6.

[0094] Optionally, in one implementation of this embodiment, such as Figure 3 , 19 As shown in Figure 20,

[0095] The circumferential limiting structure has a circumferential limiting surface, the axial limiting structure has an axial limiting surface, and the inner side of the air outlet frame 6 has a circumferential mating surface and an axial mating surface. The circumferential mating surface of the air outlet frame 6 is clearance-fitted with the circumferential limiting surfaces of the multiple first rotating parts 9 to achieve circumferential motion calibration during the rotation of the air outlet frame 6. The axial mating surface of the air outlet frame 6 is clearance-fitted with the axial limiting surfaces of the multiple first rotating parts 9 to achieve axial motion limiting during the rotation of the air outlet frame 6.

[0096] By designing the first rotating component 9 with a circumferential limiting structure having a circumferential limiting surface and an axial limiting structure having an axial limiting surface, the upper end of the air outlet frame 6 can be calibrated for circumferential movement and limited for axial movement. Through the clearance fit between the circumferential mating surface of the air outlet frame 6 and the multiple circumferential limiting surfaces of the first rotating components 9, the circumferential movement calibration during the rotation of the air outlet frame 6 is achieved. Through the clearance fit between the axial mating surface of the air outlet frame 6 and the multiple axial limiting surfaces of the first rotating components 9, the axial movement limitation during the rotation of the air outlet frame 6 is achieved, preventing the air outlet frame 6 from moving axially and preventing the air outlet frame 6 from detaching from the chassis 1 during movement.

[0097] Optionally, in one implementation of this embodiment, such as Figure 3 , 19 As shown in Figures 20 and 21, the first rotating member 9 includes a first ring 901 and a second ring 902. The outer diameter of the first ring 901 is larger than the outer diameter of the second ring 902. The first ring 901 and the second ring 902 form a stepped structure. The axial limiting surface includes the first ring bottom surface 903 at the bottom of the first ring 901 and the first ring top surface 906 at the top of the first ring 901. The circumferential limiting surface includes the first ring outer circumferential surface 904 of the first ring 901 and the second ring outer circumferential surface 905 of the second ring 902.

[0098] The circumferential mating surfaces include the first circumferential mating surface 616 and the second circumferential mating surface 617;

[0099] The axial mating surfaces include a first axial mating surface 618 and a second axial mating surface 619;

[0100] The inner side of the air outlet frame 6 is provided with an inner groove 614 and a bottom support 615. The circumferential wall surface of the inner groove 614 forms a first circumferential mating surface 616, the circumferential wall surface of the inner wall of the air outlet frame 6 forms a second circumferential mating surface 617, the top surface of the bottom support 615 forms a first axial mating surface 618, and the axial wall surface of the inner groove 614 forms a second axial mating surface 619.

[0101] The bottom surface 903 of the first ring is in clearance fit with the first axial mating surface 618, the top surface 906 of the first ring is in clearance fit with the second axial mating surface 619, the outer circumferential surface 904 of the first ring is in clearance fit with the first circumferential mating surface 616, and the outer circumferential surface 905 of the second ring is in clearance fit with the second circumferential mating surface 617.

[0102] In this embodiment, the first rotating member 9 includes a first ring 901 and a second ring 902. The ring with a larger diameter is the first ring 901, and the ring with a smaller diameter is the second ring 902. The first ring 901 and the second ring 902 are stacked to form a stepped structure, wherein the first ring 901 is located below the second ring 902. The stepped structure includes a bottom surface 903 of the first ring, an outer circumferential surface 904 of the first ring, an outer circumferential surface 905 of the second ring, and a top surface 906 of the first ring located between the outer circumferential surfaces 904 and 905. The circumferential mating surfaces have a first circumferential mating surface 616 and a second circumferential mating surface 617, and the axial mating surfaces have a first axial mating surface 618 and a second axial mating surface 619. The bottom surface 903 of the first ring corresponds to the first axial mating surface 618 and there is a gap between them. When the air outlet frame 6 rotates, the bottom surface 903 of the first ring and the first axial mating surface will come into contact. The top surface 906 of the first ring corresponds to the second axial mating surface 619 and there is a gap between them. When the air outlet frame 6 rotates, the top surface 906 of the first ring and the second axial mating surface 619 will come into contact. The outer circumferential surface 904 of the first ring corresponds to the first circumferential mating surface 616 and there is a gap between them. When the air outlet frame 6 rotates, the outer circumferential surface 904 of the first ring and the first circumferential mating surface 616 will come into contact. The outer circumferential surface 905 of the second ring corresponds to the second circumferential mating surface 617 and there is a gap between them. When the air outlet frame 6 rotates, the outer circumferential surface 905 of the second ring and the second circumferential mating surface 617 will come into contact.

[0103] Preferably, the limiting gap between the top surface 906 of the first ring and the second axial mating surface 619 is 0.4 to 0.6 mm, and the overlap is 1 to 1.5 mm. This overlap is the radial interference between the top surface 906 of the first ring and the second axial mating surface 619. Figure 20The dimensions shown in M2 are 1 to 1.5 millimeters.

[0104] By setting a stepped structure on the first rotating member 9 and setting a circumferential mating surface and an axial mating surface on the air outlet frame 6, the contact area between the first rotating member 9 and the air outlet frame 6 is increased. This allows the first rotating member 9 to not only correct the circumferential movement of the upper end of the air outlet frame 6, but also to support and limit the air outlet frame 6, restricting its vertical movement and preventing it from moving axially.

[0105] Optionally, in one implementation of this embodiment, such as Figure 1-3 As shown in Figures 18, 19, and 20, the base assembly also includes a first support member 8.

[0106] The first support member 8 includes a first cylinder 801. The lower end of the first cylinder 801 is connected to the top of the support frame 7. The upper end has a first limiting protrusion 802 protruding from the circumferential sidewall of the first cylinder 801. The first cylinder 801 has a first cavity 8011 extending downward and penetrating the circumferential sidewall of the first cylinder 801 along its upper end. The first cavity 8011 divides the first cylinder 801 into multiple second sub-parts. The multiple second sub-parts can be deformed to realize the fitting of the first rotating member 9.

[0107] The first rotating component 9 is rotatably sleeved on the outside of the first cylinder 801, and the first limiting protrusion 802 limits the first rotating component 9 from disengaging.

[0108] In this embodiment, as Figure 2 , 18As shown, the first support member 8 can be a first cylinder 801. The lower end of the first cylinder 801 is connected to the upper surface of the chassis 1 and will not have relative displacement with the chassis 1. The upper end of the first cylinder 801 has a first limiting protrusion 802. The first limiting protrusion 802 protrudes from the side wall of the second cylinder 401, that is, the outer diameter of the first limiting protrusion 802 is larger than the outer diameter of the first cylinder 801, thereby forming a mushroom head structure. The mushroom head structure is a connected two-way snap-fit ​​structure. When the two snaps are elastically deformed, the gap between the two snaps will become smaller. The first cylinder 801 has a first cavity 8011 extending from the upper end to the lower end of the first cylinder 801. The outer peripheral wall of the first cylinder 801 has a strip-shaped notch, the length of which is less than or equal to the length of the first cavity 8011 and extends from the upper end to the lower end of the first cylinder 801. Thus, the first limiting protrusion 802 is also cut by the first cavity 8011 and the strip-shaped notch into a hollow structure with an outer peripheral wall notch. Applying opposing pressure to the first limiting protrusion 802 on both sides of the strip-shaped notch causes the first limiting protrusion 802 to contract and deform towards its axis, thereby reducing the outer diameter of the first limiting protrusion 802. The first rotating member 9 is then pressed downwards into the lower part of the mushroom-head structure. Assembly is achieved after the mushroom-head structure recovers its deformation. The first ring 901 and the second ring 902 are both fitted around the first cylinder 801 and can rotate 360 ​​degrees relative to the first cylinder 801. The axes of the first ring 901 and the second ring 902 coincide, the diameter of the first ring 901 is larger than the diameter of the second ring 902, and the second ring 902 is located above the first ring 901. The side view of the first rotating member 9 is convex. When the air outlet frame 6 rotates, the sidewalls of the first ring 901 and the second ring 902 contact the circumferential mating surface, correcting the circumferential motion of the upper end of the air outlet frame 6. This prevents problems such as running jamming and abnormal noise caused by deviation of the motion trajectory at the upper end of the air outlet frame 6. The first ring 901 can contact not only the circumferential mating surface but also the axial mating surface. It can correct the circumferential motion of the upper end of the air outlet frame 6 and also support and limit the air outlet frame 6, restricting its up and down movement and preventing the air outlet frame 6 from moving axially during operation.

[0109] Preferably, the first rotating component 9 can be a layered cylindrical rubber sleeve. Pressing the layered cylindrical rubber sleeve downwards against the mushroom-head structure causes the mushroom-head structure to elastically deform inwards, thereby fitting the layered cylindrical rubber sleeve into the mushroom-head structure of the chassis 1. The gap between the layered cylindrical rubber sleeve and the first cylinder 801 is 0.1 to 0.2 mm, i.e. Figure 20The dimensions shown in M4 are 0.1 to 0.2 mm, so that the cylindrical rubber sleeves with upper and lower layers can rotate 360° on the first cylinder 801, thereby effectively preventing the air outlet frame 6 from escaping in the vertical direction.

[0110] Preferably, the radial movement clearance between the first rotating member 9 and the air outlet frame 6 is 0.4 to 0.7 mm, i.e. Figure 28 The dimensions shown in M3 are 0.4 to 0.7 mm, which facilitates assembly and can also correct the circumferential movement of the air outlet frame 6 through the damping characteristics of its own rubber material.

[0111] Preferably, when the air outlet frame 6 is stationary relative to the chassis 1, the sidewalls of the first ring 901 and the second ring 902 have gaps with the circumferential mating surfaces, and the bottom wall of the first ring 901 has a gap with the axial mating surface. These gaps can be 0.4 to 0.6 mm. Figure 20 The dimension shown in M1 is 0.4 to 0.6 mm. When the air outlet frame 6 rotates relative to the chassis 1, the side walls of the first ring 901 and the second ring 902 come into contact with the circumferential mating surface and generate force, thereby correcting the circumferential motion of the upper end of the air outlet frame 6 and avoiding problems such as running jamming and abnormal noise caused by deviation of the motion trajectory of the upper end of the air outlet frame 6. At the same time, the top wall of the second ring 902 comes into contact with the axial mating surface and generates force, thereby supporting the air outlet frame 6 and restricting the downward movement of the air outlet frame 6.

[0112] Preferably, the first cylinder 801 can also be a solid cylinder, and the first limiting protrusion 802 is made of an elastic material with elastic deformation, such as rubber. The bottom surface of the first limiting protrusion 802 has an annular groove, the middle of which is solid and connected to the top of the first cylinder 801. Its annular groove structure can deform under force and contract in the direction of its axis, thereby facilitating the fitting of the first ring 901 and the second ring 902 onto the first cylinder 801.

[0113] Preferably, the first ring 901 and the second ring 902 can be made of materials with elastic deformation capabilities, such as rubber, so that the inner diameter can be temporarily expanded by deformation during installation, and the inner diameter of the first ring 901 can automatically return to the initial size after installation.

[0114] By setting the first support member 8 and the first rotating member 9 to a cylindrical and annular limiting engagement, and by providing a deformable first limiting protrusion 802 on the first cylinder 801, the roller assembly, pressure plate, and fixing screws responsible for correcting the circumferential movement of the decorative base plate at the top of the chassis 1 can be completely eliminated. This allows workers to assemble the first rotating member 9 by hand without the aid of other tools. Furthermore, the first support member 8 can automatically limit the first ring 901 and the second ring 902, improving the ease of assembly and disassembly of the first rotating member 9. The different diameters of the first ring 901 and the second ring 902 allow the first rotating member 9 to both correct the circumferential movement of the upper end of the air outlet frame 6 and support the air outlet frame 6, restricting its vertical movement and preventing axial movement of the air outlet frame 6 during operation.

[0115] Optionally, in one implementation of this embodiment, such as Figure 1 , 4 As shown,

[0116] The support frame 7 has a front opening;

[0117] The air outlet frame 6 is provided with a vent and a sealing part; by rotating the air outlet frame 6, the vent can be rotated to the front side of the support frame 7 to communicate with the front opening, or the vent can be rotated to the rear side of the support frame 7 to close the front opening with the sealing part.

[0118] In this embodiment, when the user needs airflow from the bottom of the air conditioner, the air outlet frame 6 rotates to the front of the support frame 7, connecting with the front opening, so that the air outlet 603 is exposed on the outer surface of the air conditioner. At this time, the air outlet 603, the inner cavity of the air outlet frame 6, and the air outlet end of the fan form an air outlet duct, realizing the function of the air conditioner to send air outward. When the user turns off the bottom air outlet of the air conditioner, the air outlet rotates to the rear of the support frame 7, so that the sealing part closes the front opening. The air outlet 603 is hidden behind the exterior decorative panel of the air conditioner, preventing dust and debris from entering the air conditioner and maintaining the overall simplicity and aesthetics of the air conditioner.

[0119] Optionally, in one implementation of this embodiment, such as Figure 1 , 2 As shown in Figures 8 and 9, multiple third support members 2 are arranged circumferentially on the chassis 1, and the rolling elements 3 are rotatably mounted on the third support members 2.

[0120] The lower end of the air outlet frame 6 has a first mating end 610, and the rolling element 3 rolls in contact with the first mating end 610 to achieve axial support for the air outlet frame 6.

[0121] In this embodiment, a plurality of third support members 2 are provided on the chassis 1, and rolling elements 3 are provided on the third support members 2. When the rolling elements 3 are located within the third support members 2, they can follow the movement direction of the air outlet frame 6 and roll 360 degrees on the third support members 2. Under the support of the rolling elements 3, the air outlet frame 6 can rotate relative to the chassis 1. The lower end of the air outlet frame 6 has a first mating end 610. The rolling elements 3 contact the first mating end 610 and are located below the first mating end 610, thereby supporting the air outlet frame 6 on the chassis 1.

[0122] The rolling element 3 contacts the first mating end 610, forming axial support for the air outlet frame 6. When the air outlet frame 6 rotates, the rolling element 3 can solve the problem of jamming during rotation caused by the non-compliance of the flatness of the moving surfaces of the air outlet frame 6 and related components by rolling 360 degrees in the vertical direction. When the air outlet frame 6 rotates on the chassis 1, the first mating end 610 at the lower end of the air outlet frame 6 has a certain flatness due to the precision of the parts manufacturing, and therefore will continuously contact the ball. Since the ball itself can rotate 360°, it effectively avoids abnormal noise caused by the ball being squeezed between the air outlet frame 6 and the chassis 1. At the same time, the point contact between the ball and the air outlet frame 6 can also reduce the contact area between the chassis 1 and the air outlet frame 6, thereby reducing the friction between the two and maintaining the smooth movement of the air outlet frame 6.

[0123] Preferably, the spacing between the multiple third support members 2 is equal and they are evenly distributed on the chassis 1. This ensures that each third support member 2 is subjected to the same force, thus ensuring the stability of the air outlet frame 6 during movement. The rolling element 3 can be embedded into the third support member 2 through an interference fit with it.

[0124] Preferably, the number of the third support member 2 can be either odd or even, as long as the number of the third support member 2 and the second support member 4 are both greater than or equal to three and are evenly distributed at equal intervals.

[0125] Through the cooperation of the third support 2 and the rolling element 3, the chassis 1 can support the air outlet frame 6 to rotate axially. When the air outlet frame 6 rotates, the rolling element 3 can solve the problem of jamming during rotation caused by the non-compliance of the flatness of the moving surface of the air outlet frame 6 and other parts by rotating 360 degrees in the vertical direction. This reduces the probability of abnormal noise caused by the deformation of the injection molding material during the rotation of the air outlet component, and also reduces the risk of jamming when the air outlet component rotates, thus improving the stability of the air outlet and other related components during movement.

[0126] Optionally, in one implementation of this embodiment, such as Figure 10-14As shown, the third support member 2 is constructed as a hollow column. The top of the third support member 2 has multiple claws arranged circumferentially. The inner side of the claws encloses a receiving chamber. The receiving chamber is connected to the hollow part of the hollow body. The rolling body 3 can be rolled in the receiving chamber, and at least part of it protrudes from the top of the receiving chamber.

[0127] Furthermore, the rolling element 3 is constructed as a ball;

[0128] The multiple jaws include multiple first jaws 202 and multiple second jaws 203;

[0129] Multiple first jaws 202 form the lower port of the receiving chamber, and multiple second jaws 203 form the upper port of the receiving chamber. The diameter of the lower port is R1, the diameter of the upper port is R2, and the diameter of the ball is R3.

[0130] Among them, R3 > R1, R3 > R2.

[0131] In this embodiment, as Figure 2 , 12 As shown, the bottom wall of the groove 201 is connected to the chassis 1 rather than being suspended in the air, thus allowing the bottom wall of the groove 201 to withstand a certain amount of gravity without deformation. Multiple first claws 202 are provided on the inner wall of the groove 201, extending towards the central axis of the groove 201, reducing the inner diameter of the middle portion of the groove 201. This allows the inner wall of the groove 201 to compress the rolling element 3, ensuring close contact between them. Multiple second claws 203 are provided on the top wall of the groove 201, also extending towards the central axis of the groove 201. This makes the inner diameter of the top of the groove 201 smaller than the outer diameter of the rolling element 3, preventing the rolling element 3 from detaching from the groove 201 during movement. The arc-shaped protrusions can conform to the surface of the rolling element 3, reducing the friction between the rolling element 3 and the groove 201. The rolling element 3 can be a ball bearing. The lower part of the ball bearing contacts the bottom wall of the groove 201, and the middle part of the ball bearing contacts both the first claw 202 and the second claw 203. The upper end of the ball bearing protrudes from the upper end of the second claw 203 and is exposed above the opening of the groove 201 so as to contact the air outlet frame 6, allowing the air outlet frame 6 to rotate under the support of the ball bearing.

[0132] The first claw 202 and the second claw 203 together form the beak structure. The inner cavity of the beak structure is a spherical cavity. The first claw 202 is located at the upper end of the spherical cavity to prevent the ball from falling out, and the second claw 203 is located at the lower end of the spherical cavity to support the weight of the ball. The ball and the bottom end of the spherical cavity of the beak structure have a zero-clearance fit, meaning that the ball is in direct contact with the bottom end of the spherical cavity of the beak structure. There are two regular arc-shaped limiting structures at the opening of the inner cavity of the beak structure. The beak structure and the top of the ball have a partial interference fit. Because the inside of the beak structure forms an arc surface, when the ball is pressed down forcefully at the opening of the beak structure, it can be assembled into the beak structure of the chassis 1 through the elastic deformation of the beak structure. When the air outlet frame 6 rotates, the ball bearings can overcome the squeezing force exerted on the ball bearing surface by the first claw 202 and the second claw 203, and thus rotate in the direction of rotation of the air outlet frame 6, solving the problems of the chassis 1 having too many parts such as too many roller assemblies, high cost, and unreliable movement.

[0133] Preferably, since the ball can rotate within the beak structure, the relative motion between the air outlet frame 6 and the ball can be either rolling friction or sliding friction. In other words, when the ball cannot rotate within the groove 201, the air outlet frame 6 can still rotate by rubbing against the smooth surface of the ball.

[0134] Preferably, the beak structure is an injection molded part, which is formed by extending upward from the chassis 1.

[0135] Preferably, the beak structure can be configured as four groups, evenly distributed at the lower end of the chassis 1. The vertical overlap between the ball bearings and the beak structure is 0.2 to 0.3 mm, so that the ball bearings can achieve 360° rotation within the beak structure. This overlap is the interference fit between the ball bearing diameter and the first chuck 202. For example, as... Figure 12 As shown, if the diameter R3 of the ball is 10 mm, then the arc diameter R2 of the upper end of the matching beak structure is 9.6 mm. Therefore, the diameter of the ball itself will be 0.2 mm longer than the single side of the second jaw 203 by an interference fit. The center of the ball is located below the second jaw 203, so the ball will be jointly limited by the second jaw 203 and the first jaw 202 in the vertical direction, and the overlap of the limits is 0.2 mm.

[0136] By connecting the bottom wall of the trough 201 to the chassis 1, and setting the first claw 202 and the second claw 203 on the inner side wall and top wall of the trough 201 respectively, the assembly method of the roller assembly supporting the weight of the decorative base plate and its pressure plate and fixing screws in related technologies can be replaced by the cooperation of the ball bearings and the beak structure. The ball bearings can be firmly fixed by simply pressing them into the beak structure, without the need for screw fixation. This solves the problem of the large variety and quantity of parts such as the roller assembly, roller pressure plate, and fixing screws in the chassis 1. The cooperation of the ball bearings and the beak structure simplifies the component mechanism of the chassis 1, realizing cost reduction and efficiency improvement of the entire chassis 1 component. The beak structure allows the ball bearings to rotate 360° in the beak groove while limiting the ball bearings, preventing the ball bearings from falling out of the trough 201 when supporting the air outlet frame 6 and during rotation, and reducing the rotational friction between the air outlet frame 6 and the chassis 1.

[0137] In this embodiment, as Figure 12 As shown, the lower ends of multiple first jaws 202 form the lower port of the groove 201, which is located above the bottom wall of the groove 201. The upper ends of multiple second jaws 203 form the upper port of the groove 201. To prevent the ball from coming out of the groove 201, the diameters of the upper and lower ports of the groove 201 need to be limited. The diameter of the lower port is defined as R1, the diameter of the upper port as R2, and the diameter of the ball as R3. Therefore, R3 needs to be greater than both R1 and R2. By limiting the dimensional relationship between the diameters of the upper and lower ports of the groove 201 and the diameter of the ball, it is possible to prevent the ball from coming out of the groove 201. As long as the diameters of the upper and lower ports of the groove 201 and the diameter of the ball meet the above dimensional relationship, they are all within the protection scope of this application.

[0138] Optionally, in one implementation of this embodiment, such as Figure 1-3 As shown in Figures 15-17, a plurality of second rotating parts 5 are rotatably arranged on the chassis 1 along the circumferential direction;

[0139] The lower end of the air outlet frame 6 has a second mating end 611, and the second rotating part 5 is clearance-fitted with the second mating end 611 to realize the circumferential motion calibration of the bottom during the rotation of the air outlet frame 6.

[0140] Furthermore, multiple second support members 4 are provided along the circumferential direction on the chassis 1, and the second rotating member 5 is rotatably mounted on the second support members 4.

[0141] The second support member 4 includes a second cylinder 401. The lower end of the second cylinder 401 is connected to the base, and the upper end has a second limiting protrusion 402 protruding from the side wall of the cylinder 401. The second cylinder 401 has a first cavity 4011 extending downward and penetrating the circumferential side wall of the second cylinder 401 along its upper end. The first cavity 4011 divides the second cylinder 401 into multiple first sub-parts. The multiple first sub-parts can be deformed to realize the fitting of the second rotating member 5.

[0142] The second rotating member 5 includes a third ring, which is rotatably sleeved on the outside of the second cylinder 401, and the second limiting protrusion 402 limits the third ring from dislodging.

[0143] In this embodiment, as Figure 1 , 2 As shown, multiple second support members 4 are provided on the chassis 1. The second support members 4 are evenly spaced and distributed on the chassis 1, ensuring that each second support member 4 experiences the same force, further improving the stability of the air outlet frame 6 during movement. A second rotating member 5 is provided on each second support member 4, and the second rotating member 5 is movably connected to the second support member 4. When the second rotating member 5 is connected to the second support member 4, it can rotate 360 ​​degrees on the second support member 4, following the direction of movement of the air outlet frame 6. Under the action of the second rotating member 5, the air outlet frame 6 can rotate relative to the chassis 1 along a circular trajectory. The lower end of the air outlet frame 6 has a second mating end 611. When the air outlet frame 6 is stationary relative to the chassis 1, there is a gap between the second rotating member 5 and the second mating end 611. When the air outlet frame 6 rotates relative to the chassis 1, the second rotating member 5 and the second mating end 611 will come into contact, thereby forming radial support for the air outlet frame 6. When the air outlet frame 6 rotates, the second rotating member 5 can correct the circumferential motion of the side wall of the air outlet frame 6 by rotating 360 degrees in the radial direction, so as to avoid the deviation of the movement trajectory of the air outlet frame 6, which would cause problems such as running jamming and abnormal noise.

[0144] Preferably, the third support member 2 and the second support member 4 are staggered on the chassis 1, which can make the force points between the air outlet frame 6 and the chassis 1 more evenly distributed, and further reduce the risk of movement jamming or abnormal noise between the air outlet frame 6 and the chassis 1.

[0145] Preferably, the number of the third support member 2 and the second support member 4 can be the same or different. The number of the two can be either odd or even, as long as the number of the third support member 2 and the second support member 4 is greater than or equal to three and they are evenly distributed at equal intervals.

[0146] Preferably, the second rotating component 5 can be a cylindrical rubber bushing with a certain thickness. The cylindrical rubber bushing has certain damping characteristics. When the air outlet frame 6 rotates eccentrically, it can contact the cylindrical rubber bushing. By squeezing the cylindrical rubber bushing, the cylindrical rubber bushing is deformed to prevent the air outlet frame 6 from vibrating during rotation. Also, due to the relatively soft nature of the rubber material, the noise generated by the collision and squeezing between the cylindrical rubber bushing and the air outlet frame 6 can be effectively reduced.

[0147] Preferably, the radial movement clearance between the second rotating member 5 and the air outlet frame 6 is 0.4 to 0.7 mm, i.e. Figure 16 The dimension shown in R4 is 0.4 to 0.7 mm. While facilitating assembly, it also utilizes the damping properties of its rubber material to correct the circumferential movement of the air outlet frame 6.

[0148] The third support 2 and the second support 4 cooperate with the rolling element 3 and the second rotating element 5 respectively, enabling the chassis 1 to support the air outlet frame 6 to rotate in the axial and radial directions. When the air outlet frame 6 rotates, the second rotating element 5 can correct the circumferential motion of the side wall of the air outlet frame 6 by rotating 360 degrees in the radial direction, avoiding problems such as running jamming and abnormal noise caused by deviation of the motion trajectory. This reduces the risk of abnormal noise and vibration of the air outlet component due to deformation of the injection molding material during rotation. At the same time, it also reduces the risk of abnormal noise caused by insufficient roundness of the decorative base plate due to deformation of the air outlet component, which in turn squeezes the rotating components of the chassis 1. This further improves the stability of the air outlet component during movement.

[0149] In this embodiment, as Figure 17As shown, the second support body can be a second cylinder 401. The lower end of the second cylinder 401 is connected to the upper surface of the chassis 1 and will not have relative displacement with the chassis 1. The upper end of the second cylinder 401 has a second limiting protrusion 402. The second limiting protrusion 402 protrudes from the side wall of the second cylinder 401, that is, the outer diameter of the second limiting protrusion 402 is larger than the outer diameter of the second cylinder 401, thereby forming a mushroom head structure. The second cylinder 401 has a first cavity 4011 extending from the upper end to the lower end of the second cylinder 401. The outer peripheral wall of the second cylinder 401 has a strip-shaped notch, the length of which is less than or equal to the length of the first cavity 4011 and extends from the upper end to the lower end of the second cylinder 401. Thus, the second limiting protrusion 402 is also cut by the first cavity 4011 and the strip-shaped notch, forming a hollow structure with an outer peripheral wall notch. Applying opposing pressure to the second limiting protrusion 402 on both sides of the strip-shaped notch causes the second limiting protrusion 402 to contract and deform towards its axis, thereby reducing the outer diameter of the second limiting protrusion 402. The second rotating component 5 can be a third ring, the inner diameter of which is smaller than the outer diameter of the second limiting protrusion 402. When opposing pressure is applied to the second limiting protrusion 402 on both sides of the strip-shaped notch, the outer diameter of the second limiting protrusion 402 will decrease. For example, the second rotating component 5 is pressed downwards into the bottom of the mushroom head structure, causing the cantilever beam of the mushroom head structure to elastically deform inwards until the second rotating component 5 is fitted around the second cylinder 401 and can rotate around the second cylinder 401. Assembly is achieved after the mushroom head structure recovers its deformation. At this time, the deformation of the second limiting protrusion 402 disappears and returns to its original shape, thereby restricting the third ring on the second cylinder 401 and preventing the third ring from coming off the second support during rolling.

[0150] Preferably, when the air outlet frame 6 is stationary relative to the chassis 1, there is a gap between the outer wall of the second rotating member 5 and the inner wall of the air outlet frame 6. When the air outlet frame 6 rotates relative to the chassis 1, the outer wall of the second rotating member 5 contacts the inner wall of the air outlet frame 6 and generates a force, thereby correcting the circumferential motion of the lower end of the air outlet frame 6 and avoiding problems such as running jamming and abnormal noise caused by the deviation of the motion trajectory of the lower end of the air outlet frame 6.

[0151] Preferably, the second cylinder 401 can also be a solid cylinder, and the second limiting protrusion 402 is made of an elastic material with elastic deformation, such as rubber. The lower surface of the second limiting protrusion 402 has an annular groove, the middle of which is solid and connected to the top of the second cylinder 401. Its annular groove structure can deform under force and contract in the direction of its axis, thereby facilitating the fitting of the third ring onto the second cylinder 401.

[0152] Preferably, the third ring can be made of a material with elastic deformation capabilities, such as rubber. The third ring can be a regular cylindrical rubber bushing, which allows for temporary expansion of the inner diameter during installation through deformation. Pressing the regular cylindrical rubber bushing downwards against the mushroom-head structure causes the cantilever beam of the mushroom-head structure to elastically deform inwards, thus fitting into the mushroom-head structure of the chassis 1. After installation, the inner diameter of the third ring automatically returns to its initial size. At this point, the snap-fit ​​of the mushroom-head structure is engaged with the top surface of the rubber bushing, with a gap of 0.05 to 0.2 mm between them, preventing the cylindrical rubber bushing from dislodging in the vertical direction. The rubber material provides frictional damping for the relative movement of the air outlet frame 6 and the chassis 1, preventing the air outlet frame 6 from vibrating during rotation and ensuring smooth movement of the air outlet frame 6.

[0153] Preferably, the gap between the third ring and the second cylinder 401 is 0.1 to 0.2 mm, so as to enable the third ring to rotate 360° on the first cylinder, so that the air outlet frame 6 can achieve smooth circular motion under the correction of the third ring.

[0154] By setting the second support and the second rotating component 5 to a mating configuration of the second cylinder 401 and the third ring, and by providing a deformable second limiting protrusion 402 on the second cylinder 401, the roller assembly, pressure plate, and fixing screws responsible for correcting the circumferential movement of the decorative base plate at the top of the chassis 1 can be completely eliminated. This allows workers to install the second rotating component 5 by hand without the aid of other tools. The second support can automatically limit the third ring, improving the ease of disassembly and assembly of the second rotating component 5. This eliminates the need for numerous clamping parts and screws, and allows for a simple installation operation to achieve the movable connection between the second rotating component 5 and the second support, thereby improving production efficiency and reducing costs.

[0155] Optionally, in one implementation of this embodiment, both the second rotating member 5 and the first rotating member 9 are configured as damped rotating members.

[0156] In this embodiment, the second rotating member 5 and the first rotating member 9 are made of materials with elastic deformation capabilities, such as rubber or silicone. When the air outlet frame 6 rotates relative to the chassis 1, the second rotating member 5 and the first rotating member 9 will come into contact with the air outlet frame 6 and be squeezed by the air outlet frame 6. The second rotating member 5 and the first rotating member 9 can buffer the radial pressure applied to the air outlet frame 6 through elastic deformation and feed back an opposite force to the air outlet frame 6, thereby correcting the circumferential motion of the air outlet frame 6. When the rubber or silicone material comes into contact with the air outlet frame 6, frictional damping will be generated on the contact surface between the two, increasing the axial friction between the second rotating member 5 and the first rotating member 9 and the air outlet frame 6, thus effectively reducing the risk of the air outlet frame 6 shaking during rotation.

[0157] The air outlet frame 6 moves in a circular motion along tracks formed at its upper and lower ends. These tracks are corrected by cylindrical rubber bushings on the chassis 1. The damping force applied by these bushings to the air outlet frame 6 ensures that the circular motion at both ends is concentric, preventing elliptical motion and thus improving stability and reducing vibration and noise. Simultaneously, the first rotating component 9 and the ball bearings provide support and limit the movement of the upper and lower ends of the air outlet frame 6, respectively. The axial cooperation between the first rotating component 9 and the ball bearings also reduces the risk of vertical movement of the air outlet frame 6 during rotation.

[0158] The second rotating member 5 and the first rotating member 9, made of a material with elastic deformation capability, can buffer the radial pressure applied to the air outlet frame 6 and increase the axial friction between the second rotating member 5 and the first rotating member 9 and the air outlet frame 6, so that the air outlet frame 6 can make a smooth circular motion relative to the chassis 1.

[0159] The first rotating part 9 is elastic, which makes it easy for the air outlet frame 6 to be fitted and assembled into the support frame 7. By squeezing the first rotating part 9, it causes elastic deformation, thereby partially locking the first rotating part 9 into the stepped structure.

[0160] Optionally, in one implementation of this embodiment, such as Figure 1 , 27 As shown in Figures 2 and 28, the second support member 4 is positioned close to the third support member 2, and the first support member 8 and the second support member 4 are staggered along the circumference of the base.

[0161] In this embodiment, as Figure 1 As shown, taking four of each of the third support member 2, the second support member 4, and the first support member 8 as an example, and arranging them in a staggered, symmetrical pattern along a ring, the distribution of support points on the chassis 1 is more uniform, thus making the support of the chassis 1 for the air outlet frame 6 more stable. In this embodiment, the chassis 1 assembly effectively reduces 16 pressure plate parts and 32 fixing screws compared to a traditional rotating chassis 1 component.

[0162] The second support member 4 is positioned close to the third support member 2, so that the second rotating member 5 and the rolling element 3 work together. During the rotation of the air outlet frame 6, it can provide axial rolling support for the air outlet frame 6 on the chassis 1, i.e., at the bottom position of the air outlet frame 6, and at the same time, it can provide circumferential motion calibration for the air outlet frame 6. In conjunction with the first support member 8 and the second support member 4 being staggered along the circumference of the base, the first rotating member 9 and the second rotating member 5 work together to form staggered circumferential motion calibration at the bottom and top positions of the air outlet frame 6, thereby producing more uniform circumferential motion calibration and making the overall movement of the air outlet frame 6 more stable and smooth.

[0163] Preferably, the number of rolling elements 3, second rotating elements 5 and first rotating elements 9 correspond to the number of third support elements 2, second support elements 4 and first support elements 8, respectively. The rolling elements 3 can be ball bearings, and the second rotating elements 5 and first rotating elements 9 can be rubber bushings. The combination of ball bearings and rubber bushings can significantly reduce development costs.

[0164] By distributing four sets of rubber bushings at the upper and lower ends of the chassis 1 to correct the radial movement of the air outlet frame 6, and arranging four sets of balls at the lower end of the chassis 1 to support the gravity of the air outlet frame 6, the air outlet frame 6 can perform a smooth circular motion under the action of the balls and rubber bushings.

[0165] Optionally, in one implementation of this embodiment, such as Figure 1-3 As shown in Figures 22-27, a sealing element 10 is provided on the support frame 7. The sealing element 10 is used to seal the gap between the support and the air outlet frame 6.

[0166] In this embodiment, as Figure 1 As shown, when the air outlet frame 6 is installed on the chassis 1, it is fitted onto the outer surface of the support frame 7. Since the air outlet frame 6 needs to rotate relative to the chassis 1, a certain gap is required between the air outlet frame 6 and the support frame 7. When the air conditioner is running in cooling mode, some cold air will flow into the air conditioner casing through this gap. If the gap is not sealed, air leakage can easily occur between the air outlet frame 6 and the chassis 1, resulting in a large amount of condensation on the exterior decorative panel, which seriously affects the user experience and the aesthetics of the air conditioner unit.

[0167] Preferably, the gap between the air outlet frame 6 and the support frame 7 is 2 to 3 mm, the radial thickness of the seal 10 is greater than 3 mm, and the seal 10 achieves sealing by interference fit with the gap to prevent air leakage.

[0168] By setting a sealing element 10 on the support frame 7, the gap between the air outlet frame 6 and the chassis 1 can be sealed, so as to prevent air leakage and thus prevent some cold air from flowing into the air conditioner housing from the gap and causing the exterior decorative panel to cool down, and avoid the exterior decorative panel from producing condensation in the cooling mode.

[0169] Optionally, in one implementation of this embodiment, such as Figure 3 , 23 As shown in Figure 24, the sealing element 10 includes a first connecting plate 101 and a flexible hair strip 102 connected to the first connecting plate 101. The first connecting plate 101 is connected to the support frame 7, and the flexible hair strip 102 is interference-fitted with the inner wall of the air outlet frame 6.

[0170] In this embodiment, the outer diameter of the flexible wool strip 102 is larger than the gap between the second connecting plate 13 and the air outlet frame 6. Therefore, when the air outlet frame 6 is fitted onto the chassis 1, the flexible wool strip 102 and the inner wall of the air outlet frame 6 form an interference fit. The wool fibers on the flexible wool strip 102 are in a fluffy state under normal conditions. After being squeezed by the air outlet frame 6, the wool fibers will gather together, increasing the internal density and preventing airflow, thereby achieving a seal between the air outlet frame 6 and the support frame 7.

[0171] Preferred, such as Figure 12 As shown, a second connecting plate 13 is fixedly connected to the support frame 7. The second connecting plate 13 facilitates the fixed connection of the first connecting plate 101 to the support frame 7.

[0172] Preferably, the interference fit between the flexible felt strip 102 and the air outlet frame 6 is 2 to 3 millimeters, i.e. Figure 23 The dimension shown in the middle L is 2 to 3 millimeters to minimize the air leakage gap and solve the problems of water ingress into the motor and condensation on the exterior surface.

[0173] Preferably, there are at least two second connecting plates 13, which are symmetrically arranged on both sides of the air outlet end face of the support frame 7. A first connecting plate 101 is snapped onto the second connecting plate 13. The first connecting plate 101 and the flexible hair strip 102 both extend along the axial direction of the support frame 7. The flexible hair strip 102 is fixed on the first connecting plate 101. The first connecting plate 101 can fix and support the flexible hair strip 102, thereby improving the durability of the flexible hair strip 102.

[0174] Preferably, slots 15 are provided at the upper and lower ends of the second connecting plate 13, and buckles 14 are provided on the first connecting plate 101. The first connecting plate 101 can be positioned on the second connecting plate 13 by the intermediate positioning pin, and the flexible strip 102 is fixed on the second connecting plate 13 by the cooperation of the slots 15 and the buckles 14 to prevent the flexible strip 102 from coming out, thereby realizing the fixed installation of the flexible strip 102.

[0175] By installing a second connecting plate 13 on the support frame 7, the connection between the flexible strip 102 and the support frame 7 can be made more secure. Even under the compression and frequent friction of the air outlet frame 6, the flexible strip 102 will not shift or fall off. By using the flexible strip 102 to replace traditional insulation methods such as sponge bonding with an interference seal, the sealing performance between the air outlet frame 6 and the chassis 1 is further improved, reducing the risk of condensation on the surface of the exterior decorative panel.

[0176] Optionally, in one implementation of this embodiment, such as Figure 1-4 As shown, the air outlet frame 6 includes an inner frame 601 and an outer panel 602. An air outlet 603 is provided on the outer panel 602, and the outer panel 602 is connected to the outer side of the inner frame 601.

[0177] In this embodiment, as Figure 4 As shown, the air outlet frame 6 includes an inner frame 601 and an outer panel 602. The inner frame 601 is used to contact the chassis 1 and rotate relative to the chassis 1. The outer peripheral surface of the inner frame 601 is hollowed out. The outer panel 602 is one of the appearance parts of the air conditioner unit. The outer panel 602 is fitted onto the inner frame 601 and is fixedly connected to the inner frame 601. When the outer panel 602 is fitted onto the inner frame 601, the top surface and outer peripheral surface of the inner frame 601 are covered by the outer panel 602. The center of the inner frame 601 forms the inner cavity of the air outlet frame 6 and communicates with the air outlet end of the fan in the air conditioner. An air outlet 603 is also provided on the outer panel 602, and the air outlet 603 communicates with the inner cavity.

[0178] When the user needs airflow from the bottom of the air conditioner, the inner frame 601 rotates, causing the outer panel 602 to rotate synchronously, exposing the air outlet 603 on the outer surface of the air conditioner. At this time, the air outlet, the inner cavity of the air outlet frame 6, and the air outlet end of the fan form an air outlet duct, realizing the function of the air conditioner to send air outward. When the user turns off the bottom air outlet of the air conditioner, the inner frame 601 rotates in the opposite direction, causing the outer panel 602 to move in an integrated manner. After passing through a set angle, the air outlet 603 is hidden behind the exterior decorative panel of the air conditioner, preventing dust and debris from entering the air conditioner and maintaining the overall simplicity and aesthetics of the air conditioner.

[0179] Optionally, in one implementation of this embodiment, such as Figure 4 , 9 As shown, a first annular protrusion 608 is formed at the lower end of the inner frame 601; a second annular groove 609 is formed on the first annular protrusion 608, the axial wall surface of the second annular groove 609 forms a first mating end 610, and the radial wall surface forms a second mating end 611.

[0180] In this embodiment, a first annular protrusion 608 is formed at the lower end of the inner frame 601, and the first annular protrusion 608 extends radially along the inner frame 601. A second annular groove 609 is formed on the first annular protrusion 608, and the second annular groove 609 has at least a first mating end 610 and a second mating end 611. The plane of the first mating end 610 intersects the axis of the second annular groove 609, or in other words, the first mating end 610 is one end face of the second annular groove 609. The first mating end 610 is used to bear axial force and can support the air outlet frame 6 when it rotates. The second mating end 611 is located below the first mating end 610 and has an angle with the first mating end 610. The second mating end 611 forms the peripheral wall surface of the second annular groove 609. The second mating end 611 is used to bear radial force and can correct the circumferential motion of the air outlet frame 6 when it rotates.

[0181] Preferably, the first ring protrusion 608 is located at the bottom end of the inner frame 601. When the inner frame 601 rotates, the first mating end 610 can contact the rolling element 3, and the second mating end 611 can contact the second rotating element 5.

[0182] By forming a second annular groove 609 on the first annular protrusion 608, it can cooperate with the rolling element 3 and the second rotating element 5 on the chassis 1, so that the air outlet frame 6 can get good axial support and radial circumferential trajectory correction when it rotates, thereby achieving smooth circular motion.

[0183] Optionally, in one implementation of this embodiment, such as Figure 1 , 4 As shown in Figure 6, the upper end of the inner frame 601 forms a second annular protrusion 613; the second annular protrusion 613 is provided with a prepositioning post 604 and a first positioning hole 605, and the outer panel 602 is provided with a prepositioning hole 606 corresponding to the prepositioning post 604 and a second positioning hole 607 corresponding to the first positioning hole 605.

[0184] In this embodiment, a second annular protrusion 613 is formed at the upper end of the inner frame 601, and the second annular protrusion 613 extends radially along the inner frame 601. A pre-positioning post 604 and a first positioning hole 605 are provided on the second annular protrusion 613. The pre-positioning post 604 is used for pre-positioning during installation. A pre-positioning hole 606 corresponding to the pre-positioning post 604 and a second positioning hole 607 corresponding to the first positioning hole 605 are provided on the outer panel 602. When installing the outer panel 602, the outer panel 602 is first fitted over the inner frame 601, and then the pre-positioning post 604 is passed through the pre-positioning hole 606. At this time, the first positioning hole 605 and the second positioning hole 607 are aligned with each other. The operator can use a connector to pass through the first positioning hole 605 and the second positioning hole 607 to fix the outer panel 602 onto the inner frame 601 to complete the installation.

[0185] Specifically, the second ring protrusion 613 is located at the top of the inner frame 601. The second ring protrusion 613 has a side wall, a bottom wall, and a top wall. When the inner frame 601 rotates, the side wall of the second ring protrusion 613 can contact the first ring 901 of the first rotating member 9. When the inner frame 601 generates axial displacement during rotation, the bottom wall of the second ring protrusion 613 can contact the upper end face of the second ring 902 of the first rotating member 9 to support the inner frame 601 and prevent the air outlet frame 6 from moving axially, thereby further reducing the risk of the air outlet frame 6 getting stuck or making abnormal noises during movement.

[0186] Preferably, the number of prepositioning posts 604 and prepositioning holes 606 are corresponding. When there are multiple prepositioning posts 604, the prepositioning posts 604 need to be evenly distributed on the second ring protrusion 613.

[0187] By setting the second ring protrusion 613 and cooperating with the first ring 901 and the second ring 902 of the first rotating member 9, the circumferential movement of the air outlet frame 6 can be corrected, and the axial movement of the air outlet frame 6 can be prevented, further reducing the risk of jamming or abnormal noise when the air outlet frame 6 moves.

[0188] In summary, the ingenious design of the base component lies in:

[0189] First, by setting a first rotating component on the base, the upper end of the air outlet frame can be supported, calibrated, and limited. The first rotating component is designed to form a circumferential limiting structure and an axial limiting structure. The top of the air outlet frame, in cooperation with the circumferential and axial limiting structures of the first rotating component, realizes circumferential motion calibration and axial motion limitation during the rotation of the air outlet frame, preventing the air outlet frame from shifting in its axial direction during movement and preventing the air outlet frame from falling off the base during movement.

[0190] Secondly, by setting the first support member and the first rotating member to a cylindrical and annular limiting fit, and by setting a deformable second limiting protrusion on the second cylinder, the roller assembly, pressure plate, and fixing screws responsible for correcting the circumferential movement of the decorative base plate at the top of the base can be completely eliminated. This allows workers to assemble the first rotating member by hand without the aid of other tools. Furthermore, the first support member can automatically limit the first and second annular rings, improving the ease of assembly and disassembly of the first rotating member. The different diameters of the first and second annular rings create a stepped structure. This stepped structure has both circumferential and axial limiting structures, enabling the first rotating member to both correct the circumferential movement of the upper end of the air outlet frame and support the air outlet frame, restricting its downward movement and preventing axial movement of the air outlet frame during operation.

[0191] Third, the cooperation between the third support component and the rolling element allows the base to support the air outlet frame in the axial direction for rotation. When the air outlet frame rotates, the rolling element rotates 360 degrees in the vertical direction, which solves the problem of jamming during rotation caused by the non-compliance of the flatness of the moving surfaces of the air outlet frame and other parts. This reduces the probability of abnormal noise caused by the deformation of the injection molding material during the rotation of the air outlet component, and also reduces the risk of jamming during the rotation of the air outlet component, improving the stability of the air outlet and other related components during movement.

[0192] Fourth, the ball bearings and the beak-like structure replace the assembly method of the roller assembly supporting the weight of the decorative base plate and its fixing screws in related technologies. Simply pressing the ball bearings into the beak structure securely fixes them, eliminating the need for screws. This solves the problem of numerous and varied parts for the base, such as roller assemblies, roller pressure plates, and fixing screws. The ball bearings and beak structure simplify the base's component structure, achieving cost reduction and efficiency improvement. The beak structure allows the ball bearings to rotate 360° within the beak groove while simultaneously limiting their movement, preventing them from detaching from the groove when supporting the air outlet frame and during rotation, and reducing rotational friction between the air outlet frame and the base.

[0193] Fifth, the third and second support components cooperate with the rolling elements and the second rotating component respectively, enabling the base to support the air outlet frame in both the axial and radial directions for rotation. When the air outlet frame rotates, the second rotating component can correct the circumferential motion of the air outlet frame sidewall by rotating 360 degrees in the radial direction, avoiding problems such as running jamming and abnormal noise caused by deviation of the motion trajectory. This reduces the risk of abnormal noise and vibration of the air outlet component due to deformation of the injection molding material during rotation. It also reduces the risk of abnormal noise caused by insufficient roundness of the decorative base plate due to deformation of the air outlet component, which in turn squeezes the rotating components of the base, further improving the stability of the air outlet frame during movement.

[0194] Sixth, by setting a first connecting plate on the support frame, the connection between the flexible strip and the support frame can be made more secure. Even under the compression and frequent friction of the air outlet frame, the flexible strip will not shift or fall off. By replacing traditional insulation methods such as sponge bonding with an interference fit using the flexible strip, the airtightness between the air outlet frame and the base is further improved, reducing the risk of condensation on the surface of the decorative panel.

[0195] Example 2

[0196] This embodiment provides an air conditioner cabinet unit, such as... Figure 1-29 As shown, it includes a drive assembly 11 and a chassis 1 assembly as in Embodiment 1. The drive assembly 11 is disposed on the chassis 1 and is connected to the air outlet frame 6 for driving the air outlet frame 6 to rotate on the chassis 1.

[0197] In this embodiment, the air conditioner unit has a drive assembly 11 and a chassis 1 assembly as in Embodiment 1, and the drive assembly 11 and the chassis 1 assembly are connected by a transmission. The drive assembly 11 is mounted on the chassis 1 and is connected by a transmission to the air outlet frame 6. When the drive assembly 11 is running, it can drive the air outlet frame 6 to reciprocate on the chassis 1 at a set angle, thereby realizing the opening and closing function of the air outlet of the air conditioner unit.

[0198] Since the air conditioner cabinet unit includes the chassis 1 component in Embodiment 1, the air conditioner cabinet unit has all the beneficial effects of the chassis 1 component in Embodiment 1, which will not be elaborated here.

[0199] Optionally, in one implementation of this embodiment, such as Figure 1 , 27 As shown, a support frame 7 protruding upwards is formed on the chassis 1, and an air outlet frame 6 is arranged around the outside of the support frame 7. The drive assembly 11 is disposed through the support frame 7. The drive assembly 11 includes a drive motor 111 and a drive gear 112 connected to the output end of the drive motor 111. The inner sidewall of the air outlet frame 6 is provided with a ring tooth 612 that meshes with the drive gear 112.

[0200] In this embodiment, the chassis 1 extends upward to form a protruding support frame 7, which can be frustoconical. The air outlet frame 6 is fitted onto the support frame 7 and covers its top surface and outer periphery. The drive assembly 11 passes through the support frame 7 and is fixed to it. The drive assembly 11 includes a drive motor 111 and a drive gear 112, which is fixed to the output end of the drive motor 111. A ring tooth 612 is provided on the inner sidewall of the air outlet frame 6, extending circumferentially along the air outlet frame 6. When the air outlet frame 6 is mounted on the chassis 1, the drive gear 112 meshes with the ring tooth 612. When the drive motor 111 runs, the rotation of the drive gear 112 drives the ring tooth 612 to move, which in turn drives the air outlet frame 6 to rotate, thereby enabling the opening and closing of the air outlet of the air conditioner unit.

[0201] Preferably, the number or extension length of the ring teeth 612 can be set according to actual needs. For example, the ring teeth 612 can be a ring structure, or they can be distributed at intervals along the circumference of the air outlet frame 6, or they can be set as arc segments according to the rotation angle.

[0202] It can be further understood that in this disclosure, "many" refers to two or more, and other quantifiers are similar. "And / or" describes the relationship between related objects, indicating that three relationships can exist; for example, A and / or B can represent: A alone, A and B simultaneously, and B alone. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. The singular forms "a," "the," and "the" are also intended to include the plural forms unless the context clearly indicates otherwise.

[0203] It is further understood that the terms "first," "second," etc., are used to describe various types of information, but this information should not be limited to these terms. These terms are only used to distinguish information of the same type from one another, and do not indicate a specific order or degree of importance. In fact, the expressions "first," "second," etc., are completely interchangeable. For example, without departing from the scope of this disclosure, first information can also be referred to as second information, and similarly, second information can also be referred to as first information.

[0204] It is further understood that although operations are described in a specific order in the accompanying drawings in the embodiments of this disclosure, this should not be construed as requiring these operations to be performed in the specific order or serial order shown, or requiring all of the shown operations to be performed to obtain the desired result. In certain environments, multitasking and parallel processing may be advantageous.

[0205] Other embodiments of this disclosure will readily occur to those skilled in the art upon consideration of the specification and practice of the utility models disclosed herein. This application is intended to cover any variations, uses, or adaptations of this disclosure that follow the general principles of this disclosure and include common knowledge or customary techniques in the art not disclosed herein. The specification and examples are to be considered exemplary only, and the true scope and spirit of this disclosure are indicated by the following claims.

[0206] It should be understood that this disclosure is not limited to the precise structures described above and shown in the accompanying drawings, and various modifications and changes can be made without departing from its scope. The scope of this disclosure is limited only by the appended claims.

Claims

1. A base assembly for a cabinet air conditioner, characterized in that: include: The base includes a chassis (1) and a support frame (7), wherein the support frame (7) is disposed on the chassis (1); Multiple rolling elements (3) are provided and distributed along the circumference of the chassis (1) on the upper surface of the chassis (1); Multiple first rotating members (9) are provided, and the multiple first rotating members (9) are rotatably distributed at the top of the support frame (7) in the circumferential direction; each first rotating member (9) has a circumferential limiting structure and an axial limiting structure. The air outlet frame (6) is sleeved on the outside of the support frame (7), and the bottom of the air outlet frame (6) is rotatably mounted on the chassis (1) by cooperating with the rolling body (3). The top of the air outlet frame (6) is calibrated for circumferential movement and limited for axial movement during rotation by cooperating with the circumferential and axial limiting structures of the first rotating member (9).

2. The base assembly according to claim 1, characterized in that, The circumferential limiting structure has a circumferential limiting surface, the axial limiting structure has an axial limiting surface, the inner side of the air outlet frame (6) has a circumferential mating surface and an axial mating surface, the circumferential mating surface of the air outlet frame (6) is clearance-fitted with the circumferential limiting surfaces of the plurality of first rotating parts (9) to realize circumferential motion calibration during the rotation of the air outlet frame (6), and the axial mating surface of the air outlet frame (6) is clearance-fitted with the axial limiting surfaces of the plurality of first rotating parts (9) to realize axial motion limiting during the rotation of the air outlet frame (6).

3. The base assembly according to claim 2, characterized in that, The first rotating member (9) includes a first ring (901) and a second ring (902). The outer diameter of the first ring (901) is larger than the outer diameter of the second ring (902). The first ring (901) and the second ring (902) form a stepped structure. The axial limiting surface includes the bottom surface (903) of the first ring (901) and the top surface (906) of the first ring (901). The circumferential limiting surface includes the outer circumferential surface (904) of the first ring (901) and the outer circumferential surface (905) of the second ring (902). The circumferential mating surface includes a first circumferential mating surface (616) and a second circumferential mating surface (617); The axial mating surface includes a first axial mating surface (618) and a second axial mating surface (619); The top of the air outlet frame (6) has an annular frame, and an inner groove (614) is provided on the inner side of the inner wall of the annular frame. The circumferential wall surface of the inner groove (614) forms the first circumferential mating surface (616), and the inner wall surface of the annular frame forms the second circumferential mating surface (617). The outer circumferential surface (904) of the first ring is in clearance fit with the first circumferential mating surface (616), and the outer circumferential surface (905) of the second ring is in clearance fit with the second circumferential mating surface (617).

4. The base assembly according to claim 3, characterized in that, The inner wall of the annular frame is provided with a bottom support (615) inside the inner groove (614). The bottom support (615) extends toward the inside of the annular frame and protrudes from the inner wall of the annular frame. The bottom support (615) is located at the bottom of the first ring (901). The top surface of the bottom support (615) forms the first axial mating surface (618). The horizontal wall surface of the inner groove (614) at the top of the first ring (901) forms the second axial mating surface (619). The bottom surface (903) of the first ring is in clearance fit with the first axial mating surface (618), and the top surface (906) of the first ring is in clearance fit with the second axial mating surface (619).

5. The base assembly according to claim 1, characterized in that, The base assembly further includes a first support member (8), which includes a first cylinder (801). The lower end of the first cylinder (801) is connected to the support frame (7), and the upper end has a first limiting protrusion (802) protruding from the circumferential sidewall of the first cylinder (801). The first cylinder (801) has a second cavity (8011) extending downward and penetrating the circumferential sidewall of the first cylinder (801) along its upper end. The second cavity (8011) divides the first cylinder (801) into multiple first sub-parts, which can be deformed to accommodate the first rotating member (9). The first rotating member (9) is rotatably sleeved on the outside of the first cylinder (801), and the first limiting protrusion (802) limits the first rotating member (9) from dislodging.

6. The base assembly according to claim 1, characterized in that, The support frame (7) has a front opening; The air outlet frame (6) is provided with a vent and a sealing part; by rotating the air outlet frame (6), the vent can be rotated to the front side of the support frame (7) to communicate with the front opening, or the vent can be rotated to the rear side of the support frame (7) to close the front opening with the sealing part.

7. The base assembly according to claim 5, characterized in that, The chassis (1) is provided with a plurality of third support members (2) along the circumferential direction, and the rolling body (3) is rotatably mounted on the third support member (2); The lower end of the air outlet frame (6) has a first mating end (610), and the rolling body (3) rolls in contact with the first mating end (610).

8. The base assembly according to claim 7, characterized in that, The third support member (2) is constructed as a hollow column. The top of the third support member (2) has a plurality of claws arranged circumferentially. The inner side of the claws encloses a receiving chamber. The receiving chamber is connected to the hollow part of the hollow column. The rolling body (3) is rotatably disposed in the receiving chamber and at least partially protrudes from the top of the receiving chamber.

9. The base assembly according to claim 8, characterized in that, The rolling element (3) is configured as a ball; The plurality of jaws includes a plurality of first jaws (202) and a plurality of second jaws (203); The plurality of first jaws (202) constitute the lower port of the receiving chamber, the plurality of second jaws (203) constitute the upper port of the receiving chamber, the diameter of the lower port is R1, the diameter of the upper port is R2, and the diameter of the ball is R3. Among them, R3 > R1, R3 > R2.

10. The base assembly according to claim 7, characterized in that, The chassis (1) is rotatably provided with a plurality of second rotating parts (5) along the circumferential direction. The lower end of the air outlet frame (6) has a second mating end (611), and the second rotating part (5) is in clearance fit with the second mating end (611) to realize the circumferential motion calibration of the bottom of the air outlet frame (6) during rotation.

11. The base assembly according to claim 10, characterized in that, The chassis (1) is provided with a plurality of second support members (4) along the circumferential direction, and the second rotating member (5) is rotatably mounted on the second support member (4); The second support member (4) includes a second cylinder (401), the lower end of which is connected to the base, and the upper end of which forms a second limiting protrusion (402) protruding from the side wall of the cylinder (401). The second cylinder (401) has a first cavity (4011) extending downward and penetrating the circumferential side wall of the second cylinder (401) along its upper end. The first cavity (4011) divides the second cylinder (401) into multiple second sub-parts. The multiple second sub-parts can be deformed to realize the fitting of the second rotating member (5). The second rotating member (5) includes a third ring, which is rotatably sleeved on the outside of the second cylinder (401), and the second limiting protrusion (402) limits the third ring from dislodging.

12. The base assembly according to claim 10, characterized in that, Both the second rotating member (5) and the first rotating member (9) are constructed as damped rotating members.

13. The base assembly according to claim 11, characterized in that, The second support member (4) is positioned close to the third support member (2), and the first support member (8) and the second support member (4) are staggered along the circumference of the base.

14. The base assembly according to claim 1, characterized in that, The support frame (7) is provided with a sealing element (10), which is used to seal the gap between the support frame (7) and the air outlet frame (6).

15. The base assembly according to claim 14, characterized in that, The sealing element (10) includes a first connecting plate (101) and a flexible hair strip (102) connected to the first connecting plate (101). The first connecting plate (101) is connected to the support frame (7), and the flexible hair strip (102) is interference-fitted with the inner wall of the air outlet frame (6).

16. The base assembly according to claim 1, characterized in that, The air outlet frame (6) includes an inner frame (601) and an outer panel (602). An air outlet (603) is provided on the outer panel (602), and the outer panel (602) is connected to the outside of the inner frame (601).

17. The base assembly according to claim 16, characterized in that, The lower end of the inner skeleton (601) has a first annular protrusion (608). A second annular groove (609) is formed on the first annular protrusion (608). The axial wall of the second annular groove (609) forms the first mating end (610), and the radial wall forms the second mating end (611).

18. The base assembly according to claim 16, characterized in that, The upper end of the inner skeleton (601) forms a second ring protrusion (613). The second ring protrusion (613) is provided with a prepositioning post (604) and a first positioning hole (605), and the outer panel (602) is provided with a prepositioning hole (606) corresponding to the prepositioning post (604) and a second positioning hole (607) corresponding to the first positioning hole (605).

19. A cabinet air conditioner, characterized in that, include: The base assembly as described in any one of claims 1-18; A drive assembly (11) is disposed on the base and is connected to the air outlet frame (6) for driving the air outlet frame (6) to rotate on the base.

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