Easily-disassembled wind wheel assembly and air conditioner

Abstract

The invention provides a wind wheel assembly easy to disassemble and an air conditioner. The wind wheel assembly is connected with a motor. The wind wheel assembly comprises a wind wheel and a locking sliding sleeve, the wind wheel is provided with an assembling shaft sleeve, the motor is provided with a motor shaft, and the motor shaft and the assembling shaft sleeve are connected in a clamped mode through a flat position structure; the locking sliding sleeve is arranged on the outer side of the assembling shaft sleeve in a sleeving mode and can slide along the assembling shaft sleeve, a containing hole is formed in the side wall of the assembling shaft sleeve, a locking ball is arranged in the containing hole, the motor shaft is provided with an annular clamping groove, one side of the locking ball abuts against the locking sliding sleeve, and the other side of the locking ball abuts against the annular clamping groove. An unlocking groove is formed in the inner side wall of the locking sliding sleeve; according to the wind wheel assembly and disassembly device, on one hand, the wind wheel assembly and disassembly operation is simplified, the wind wheel assembly and disassembly convenience is improved, on the other hand, in the wind wheel assembly and disassembly process, any part needing to be assembled and disassembled does not need to be used, and the situation that parts small in size fall off and are lost is completely eradicated.

Description

Technical Field

[0001] The present invention relates to the technical field of air conditioners, and in particular to an easily detachable wind wheel assembly and an air conditioner. Background Art

[0002] Air conditioners are indispensable electrical appliances in people's daily lives and have a variety of structural forms. With the continuous improvement of industrial design level and the application of new processes, new materials and new shapes in air conditioners, not only a variety of air conditioners have been developed, but also the structures of air conditioner-related components have been optimized.

[0003] Take the fan assembly structure of a conventional air conditioner as an example. Figure 1 As shown, the wind wheel is often provided with an assembly hole, the motor shaft is arranged in the assembly hole, and the motor shaft is locked with the wind wheel by means of inserts, nuts and other components, so that the motor can drive the wind wheel to rotate. However, in the existing wind wheel assembly structure, there are many parts that need to be disassembled (such as nuts and other fasteners), which not only easily leads to poor convenience in disassembly and assembly of the wind wheel, but also the small parts (such as fasteners) are easy to fall off and lose, causing inconvenience in disassembly and assembly of the wind wheel. Summary of the invention

[0004] In view of this, the present invention aims to provide an easily detachable wind wheel assembly and air conditioner to solve the problem of poor convenience in assembling and disassembling the wind wheel in the prior art.

[0005] To achieve the above object, the technical solution of the present invention is achieved as follows:

[0006] A detachable wind wheel assembly, which is connected to a motor; the wind wheel assembly includes a wind wheel and a locking sleeve, the wind wheel has an assembly sleeve, the motor is provided with a motor shaft, and the motor shaft and the assembly sleeve are clamped by a flat structure; the locking sleeve is sleeved on the outside of the assembly sleeve, the locking sleeve can slide along the assembly sleeve, the side wall of the assembly sleeve is provided with a receiving hole, a locking ball is provided in the receiving hole, an annular groove is provided on the motor shaft, one side of the locking ball abuts against the locking sleeve, and the other side abuts against the annular groove, an unlocking groove is provided on the inner side wall of the locking sleeve, and as the locking sleeve slides, part of the ball body of the locking ball can enter the unlocking groove. The wind wheel assembly can be disassembled and assembled with the motor only by sliding the locking sleeve. Compared with the prior art, on the one hand, the wind wheel disassembly and assembly operation is simplified and the convenience of wind wheel disassembly and assembly is improved. On the other hand, since the locking sleeve is sleeved with the assembly shaft sleeve, there is no need to remove the locking sleeve separately. Therefore, during the wind wheel disassembly and assembly process, the present application does not need to use any parts that need to be disassembled (such as fasteners), and the occurrence of smaller parts (such as fasteners) falling or losing is completely prevented.

[0007] Furthermore, a locking surface is provided on the inner side wall of the locking sleeve, and the locking surface is provided adjacent to the unlocking groove. When the locking sleeve is slid in the direction from the locking surface to the unlocking groove, the locking ball can simultaneously have an interference fit with the locking surface and the annular groove, so that the motor shaft and the wind wheel are in a locked state; when the locking sleeve is slid in the direction from the unlocking groove to the locking surface, part of the locking ball can enter the unlocking groove, so that the motor shaft and the wind wheel are in an unlocked state. Thus, with the directional sliding of the locking sleeve, the locking and unlocking of the motor shaft and the wind wheel can be simply and conveniently achieved.

[0008] Furthermore, a spring is arranged between the inner wall of the locking sleeve and the outer wall of the assembly sleeve, the spring sleeve is arranged on the inner wall of the assembly sleeve, one end of the spring is connected to the locking sleeve, and the other end is connected to the assembly sleeve. Specifically, a positioning step is arranged on the side of the locking surface away from the unlocking groove, a positioning protrusion is arranged on the outer wall of the assembly sleeve, the positioning protrusion is located on the side of the positioning step away from the unlocking groove, an annular cavity is formed between the positioning step and the positioning protrusion, the spring is arranged in the annular cavity, one end of the spring is connected to the positioning step, and the other end is connected to the positioning protrusion. Thus, under the elastic force provided by the spring and the further guiding effect, the smoothness of the sliding of the locking sleeve can be effectively improved, and at the same time, subject to the connection limitation and elastic force limitation of the spring, the locking sleeve will not be easily separated from the assembly sleeve.

[0009] Furthermore, when the locking ball is in interference fit with the locking surface and the annular groove at the same time, the spring is in a naturally extended state; when part of the locking ball enters the unlocking groove, the spring is in a stressed stretched state or a stressed compressed state, so that a person needs to apply a certain force to the spring through the locking sleeve and slide the locking sleeve to release the lock of the motor shaft and the wind wheel. Therefore, during the use of the air conditioner, it can be fully guaranteed that the motor shaft and the wind wheel are always in a locked state.

[0010] Furthermore, a limit arm is provided at one end of the locking sleeve close to the motor, and the limit arm is located on the side of the positioning protrusion away from the spring, and the positioning protrusion can stop and limit the limit arm. Thus, the positioning protrusion stops and limits the locking sleeve, and at the same time, under the action of the spring, the locking sleeve can only slide within a certain space range, preventing the locking sleeve from excessively displacing along the assembly sleeve.

[0011] Furthermore, the side of the unlocking groove close to the locking surface is an inclined surface or a smooth transition surface, so that the locking ball can slide smoothly into or out of the unlocking groove, which is beneficial to reducing the sliding resistance of the locking sliding sleeve and facilitating people's operation.

[0012] Furthermore, the inner wall of the receiving hole is an arc surface, and the opening diameter of the receiving hole toward the motor shaft is denoted as K, which is smaller than the diameter of the locking ball. In addition to enabling the locking ball to move smoothly in the receiving hole, the locking ball is prevented from entering the first chamber, which is conducive to ensuring that the wind wheel assembly is easy to disassemble and assemble.

[0013] Furthermore, a flat shaft is provided at the end of the motor shaft, and a first chamber and a second chamber are provided in the assembly sleeve, which are connected in sequence, and the motor shaft can pass through the first chamber, and the second chamber has a flat hole, and the flat shaft is engaged with the flat hole of the second chamber. Therefore, when the motor shaft rotates, the wind wheel assembly can be driven to rotate through the flat structure.

[0014] An air conditioner comprises a motor and the easily detachable wind wheel assembly. The motor has a motor shaft, and the motor is connected to the wind wheel assembly only in a clamping form via the motor shaft.

[0015] Compared with the prior art, the easily detachable wind wheel assembly and air conditioner described in the present invention have the following advantages:

[0016] The easily detachable wind wheel assembly and air conditioner described in the present invention ensure the basic requirement that the motor can drive the wind wheel to rotate through a flat structure. On this basis, the present application realizes the locking of the motor shaft and the wind wheel by setting a locking sleeve and utilizing the abutment (interference fit) between the locking ball, the locking sleeve, and the annular groove of the motor shaft, so that the motor can be more firmly connected to the wind wheel and the assembly of the motor and the wind wheel can be realized; when the motor and the wind wheel need to be disassembled, it is only necessary to slide the locking sleeve so that the unlocking groove is directly opposite to the locking ball, and the locking ball will move toward the unlocking groove appropriately, thereby releasing the interference fit between the locking ball, the locking sleeve, and the annular groove of the motor shaft, and the motor and the wind wheel can be simply disassembled.

[0017] Therefore, the wind wheel assembly of the present application can be disassembled and assembled with the motor only by sliding the locking sleeve. Compared with the prior art, on the one hand, the wind wheel disassembly and assembly operation is simplified and the convenience of wind wheel disassembly and assembly is improved. On the other hand, since the locking sleeve is sleeved with the assembly shaft sleeve, there is no need to remove the locking sleeve separately. During the wind wheel disassembly and assembly process, the present application does not need to use any parts that need to be disassembled (such as fasteners), and the occurrence of smaller parts (such as fasteners) falling or losing is completely prevented. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The accompanying drawings constituting a part of the present invention are used to provide a further understanding of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation of the present invention. In the accompanying drawings:

[0019] Figure 1An exploded diagram of a motor, a fan wheel, and assembly parts of an air conditioner in the prior art;

[0020] Figure 2 This is a schematic structural diagram of an easily detachable wind wheel assembly according to an embodiment of the present invention;

[0021] Figure 3 is a schematic diagram of the structure of a motor according to an embodiment of the present invention;

[0022] Figure 4 For the embodiment of the present invention Figure 2 A partial enlarged view of the middle A;

[0023] Figure 5 For the embodiment of the present invention Figure 4 The schematic diagram of the structure after hiding the motor shaft and locking ball (part of the spring view is also hidden).

[0024] Description of reference numerals:

[0025] 1. Motor; 11. Motor shaft; 12. Flat shaft; 13. Annular groove; 14. Groove bottom wall; 2. Wind wheel; 3. Assembly sleeve; 31. First chamber; 32. Second chamber; 33. Positioning protrusion; 34. Accommodating hole; 4. Locking sleeve; 41. Unlocking groove; 42. Locking surface; 43. Positioning step; 44. Limiting arm; 5. Spring; 6. Locking ball; 7. Annular cavity. DETAILED DESCRIPTION

[0026] The inventive concepts of the present disclosure will be described below using terms commonly used by those skilled in the art to convey the essence of their work to other persons skilled in the art. However, these inventive concepts can be embodied in many different forms and should not be considered limited to the embodiments described herein.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features in the embodiments may be combined with each other.

[0028] The present invention will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0029] In the prior art, as shown in the attached Figure 1 As shown in the figure, the conventional air conditioner impeller assembly structure often uses inserts, nuts and other components to lock the motor shaft and the impeller, so that the motor can drive the impeller to rotate. However, in the existing impeller assembly structure, there are many parts that need to be disassembled (such as nuts and other fasteners), which not only makes it difficult to disassemble and assemble the impeller, but also makes it easy for small parts (such as fasteners) to fall off or get lost, causing inconvenience in disassembling and assembling the impeller.

[0030] In order to solve the problem of poor convenience in assembling and disassembling the wind wheel in the prior art, this embodiment provides an easily detachable wind wheel assembly, as shown in the attached Figure 2-5 As shown, the wind wheel assembly is only connected to the motor 1 without any fasteners or independent assembly parts, thereby preventing the individual parts from falling or being lost.

[0031] Specifically, the wind wheel assembly includes a wind wheel 2 and a locking sleeve 4, the wind wheel 2 has an assembly sleeve 3, the motor 1 is provided with a motor shaft 11, and the motor shaft 11 is clamped with the assembly sleeve 3 through a flat structure; the locking sleeve 4 is sleeved on the outside of the assembly sleeve 3, the locking sleeve 4 can slide along the assembly sleeve 3, the side wall of the assembly sleeve 3 is provided with a receiving hole 34, the receiving hole 34 is provided with a locking ball 6, the motor shaft 11 is provided with an annular groove 13, one side of the locking ball 6 abuts against the locking sleeve 4, and the other side abuts against the annular groove 13, the inner side wall of the locking sleeve 4 is provided with an unlocking groove 41, as the locking sleeve 4 slides relative to the assembly sleeve 3, part of the ball of the locking ball 6 can enter the unlocking groove 41, so that the interference fit between the locking ball 6 and the annular groove 13 is released.

[0032] The wind wheel assembly proposed in the present application ensures the basic requirement that the motor 1 can drive the wind wheel 2 to rotate through a flat structure.

[0033] Furthermore, by providing a locking sleeve 4, the locking ball 6 is utilized to abut against the locking sleeve 4 and the annular groove 13 of the motor shaft 11 (interference fit), so that the motor 1 can be more securely connected to the wind wheel 2, thereby realizing the assembly of the motor 1 and the wind wheel 2; when the motor 1 and the wind wheel 2 need to be disassembled, it is only necessary to slide the locking sleeve 4 so that the unlocking groove 41 is directly opposite to the locking ball 6, and the locking ball 6 will move toward the unlocking groove 41 by an appropriate amount, thereby releasing the interference fit between the locking ball 6 and the locking sleeve 4 and the annular groove 13 of the motor shaft 11, and the motor 1 and the wind wheel 2 can be easily disassembled.

[0034] Therefore, when the wind wheel assembly of the present application is disassembled and assembled with the motor 1, it can be achieved only by sliding the locking sleeve 4. Compared with the prior art, on the one hand, the wind wheel disassembly and assembly operation is simplified and the convenience of wind wheel disassembly and assembly is improved. On the other hand, since the locking sleeve 4 is sleeved with the assembly shaft sleeve 3, there is no need to remove the locking sleeve 4 separately, so that during the wind wheel disassembly and assembly process of the present application, there is no need to use any parts that need to be disassembled (such as fasteners), and the occurrence of smaller parts (such as fasteners) falling or losing is completely prevented.

[0035] For the flattened structure, a flattened shaft 12 is provided at the end of the motor shaft 11, and a first chamber 31 and a second chamber 32 are provided in the assembly sleeve 3, which are connected in sequence. The motor shaft 11 can pass through the first chamber 31, and the second chamber 32 has a flattened hole. The flattened shaft 12 is engaged with the flattened hole of the second chamber 32. Therefore, when the motor shaft 11 rotates, the wind wheel assembly can be driven to rotate through the flattened structure.

[0036] In the present application, an annular groove 13 is provided on the motor shaft 11. Preferably, the motor shaft 11 is a round shaft, the cross-section of the first chamber 31 is circular, the axis of the assembly sleeve 3 is taken as the central axis, and the side wall of the assembly sleeve 3 (corresponding to the side wall of the first chamber 31) is provided with a plurality of accommodating holes 34 in a circular array. A locking ball 6 is correspondingly provided in each accommodating hole 34, so that a relatively uniform card receiving force distribution can be formed between the locking sleeve 4 and the motor shaft 11, which is beneficial to ensure the stability of the motor shaft 11 and the wind wheel 2 when locked.

[0037] The inner wall of the locking sleeve 4 is provided with a locking surface 42, and the locking surface 42 is arranged adjacent to the unlocking groove 41. When the locking sleeve 4 is slid along the direction from the locking surface 42 to the unlocking groove 41, the locking ball 6 can simultaneously have an interference fit with the locking surface 42 and the annular groove 13, thereby realizing the locking of the motor shaft 11 and the wind wheel 2; when the locking sleeve 4 is slid along the direction from the unlocking groove 41 to the locking surface 42, part of the ball of the locking ball 6 can enter the unlocking groove 41, thereby releasing the locking between the motor shaft 11 and the wind wheel 2. Specifically, when the motor shaft 11 and the wind wheel 2 are locked, the locking ball 6 can at least have an interference fit with the groove bottom wall 14 of the annular groove 13; of course, the size and shape of the annular groove 13 can be adjusted so that the locking ball 6 has an interference fit with all the inner walls of the annular groove 13.

[0038] At the same time, in order to enable the locking ball 6 to slide smoothly into or out of the unlocking groove 41 , the side of the unlocking groove 41 close to the locking surface 42 is a slope or other smooth transition surface.

[0039] In order to ensure that the locking sleeve 4 can slide smoothly along the assembly sleeve 3 and will not be separated, a spring 5 is arranged between the inner wall of the locking sleeve 4 and the outer wall of the assembly sleeve 3. The spring 5 is sleeved on the inner wall of the assembly sleeve 3, one end of the spring 5 is connected to the locking sleeve 4, and the other end is connected to the assembly sleeve 3. Therefore, under the elastic force provided by the spring 5 and the further guiding effect, the stability of the sliding of the locking sleeve 4 can be effectively improved, and at the same time, subject to the connection limitation and elastic force limitation of the spring 5, the locking sleeve 4 will not be easily separated from the assembly sleeve 3.

[0040] Since the locking of the motor shaft 11 and the wind wheel 2 is always maintained in the "normal state" during the use of the air conditioner, the locking ball 6 is in an interference fit state with the locking surface 42 and the annular groove 13 (that is, the motor shaft 11 and the wind wheel 2 are in a locked state), and the spring 5 is in a naturally stretched state and does not provide elastic force by itself. Correspondingly, when part of the ball of the locking ball 6 enters the unlocking groove 41 (that is, the motor shaft 11 and the wind wheel 2 are in an unlocked state), the spring 5 is in a tension state or a compression state, so that the human hand needs to apply a certain force to the spring 5 through the locking sleeve 4 and slide the locking sleeve 4 to unlock the motor shaft 11 and the wind wheel 2. Therefore, during the use of the air conditioner, it can be fully guaranteed that the motor shaft 11 and the wind wheel 2 are always in a locked state.

[0041] Since the installation orientation and installation posture of different types of air conditioners are different, the relative setting positions of the unlocking slot 41, the locking surface 42, and the spring 5 can be adjusted according to the actual situation. Taking the ceiling air conditioner as an example, it is often hung on the ceiling, and its motor 1 is above the wind wheel 2. Based on this orientation, the unlocking slot 41, the locking surface 42, and the spring 5 are arranged in sequence from bottom to top, and when the motor shaft 11 and the wind wheel 2 are in the unlocked state, the spring 5 is in a compressed state, so that when the ceiling air conditioner is in the installed state, if people need to disassemble the wind wheel, they need to apply an upward thrust to the assembly sleeve 3, which will correspondingly provide a lifting effect to the entire wind wheel assembly to prevent the wind wheel from falling when it is disassembled.

[0042] For the relevant structure of installing the spring 5, a positioning step 43 is set on the side of the locking surface 42 away from the unlocking groove 41, and a positioning protrusion 33 is set on the outer wall of the assembly sleeve 3. The positioning protrusion 33 is located on the side of the positioning step 43 away from the unlocking groove 41. An annular cavity 7 is formed between the positioning step 43 and the positioning protrusion 33. The spring 5 is arranged in the annular cavity 7, and one end of the spring 5 is connected to the positioning step 43, and the other end is connected to the positioning protrusion 33.

[0043] In order to prevent the locking sleeve 4 from excessively displacing along the assembly sleeve 3, a limit arm 44 is provided at one end of the locking sleeve 4 close to the motor 1, and the limit arm 44 is located on the side of the positioning protrusion 33 away from the spring 5. The positioning protrusion 33 can stop and limit the limit arm 44, or the positioning protrusion 33 stops and limits the locking sleeve 4. At the same time, under the action of the spring 5, the locking sleeve 4 can only slide within a certain spatial range, thereby preventing the locking sleeve 4 from excessively displacing along the assembly sleeve 3.

[0044] For the receiving hole 34, as shown in the attached Figure 5As shown, the inner wall of the receiving hole 34 is an arc surface, and at least the locking ball 6 should not enter the first chamber 31 to ensure the easy disassembly of the wind wheel assembly. Specifically, the opening diameter of the receiving hole 34 facing the motor shaft 11 (or the first chamber 31) is recorded as K, and K is smaller than the diameter of the locking ball 6. In addition to allowing the locking ball 6 to move smoothly in the receiving hole 34, it also prevents the locking ball 6 from entering the first chamber 31, which is conducive to ensuring the easy disassembly of the wind wheel assembly.

[0045] In the present invention, any air conditioner includes a motor 1 and the easily detachable wind wheel assembly described in this embodiment, wherein the motor 1 has a motor shaft 11, and the motor 1 is connected to the wind wheel assembly only in a snap-on manner via the motor shaft 11.

[0046] Based on the relevant structure and assembly relationship provided in this application, the air conditioner also includes conventional components of an air conditioner indoor unit including heat exchange coils, electronic control components, shells and other structures; similarly, the air conditioner also includes an air conditioner outdoor unit and related components; since they are all existing technologies, they will not be elaborated here.

[0047] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An easily detachable wind wheel assembly, characterized in that: The wind wheel assembly is connected to the motor (1); the wind wheel assembly comprises a wind wheel (2) and a locking sleeve (4); the wind wheel (2) has an assembly sleeve (3); the motor (1) is provided with a motor shaft (11); the motor shaft (11) and the assembly sleeve (3) are clamped by a flat structure; the locking sleeve (4) is sleeved on the outer side of the assembly sleeve (3); the locking sleeve (4) can slide along the assembly sleeve (3); a receiving hole (34) is provided on the side wall of the assembly sleeve (3); a locking ball (6) is provided in the receiving hole (34); an annular groove (13) is provided on the motor shaft (11); one side of the locking ball (6) abuts against the locking sleeve (4) and the other side abuts against the annular groove (13); an unlocking groove (41) is provided on the inner side wall of the locking sleeve (4); as the locking sleeve (4) slides, part of the ball of the locking ball (6) can enter the unlocking groove (41).

2. The easily detachable wind wheel assembly according to claim 1, characterized in that: The inner side wall of the locking sleeve (4) is provided with a locking surface (42), and the locking surface (42) is arranged adjacent to the unlocking groove (41). When the locking sleeve (4) is slid in the direction from the locking surface (42) to the unlocking groove (41), the locking ball (6) can simultaneously be interference-fitted with the locking surface (42) and the annular groove (13), so that the motor shaft (11) and the wind wheel (2) are in a locked state; when the locking sleeve (4) is slid in the direction from the unlocking groove (41) to the locking surface (42), part of the sphere of the locking ball (6) can enter the unlocking groove (41), so that the motor shaft (11) and the wind wheel (2) are in an unlocked state.

3. The easily detachable wind wheel assembly according to claim 2, characterized in that: A spring (5) is arranged between the inner wall of the locking sleeve (4) and the outer wall of the assembly sleeve (3); the spring (5) is sleeved on the inner wall of the assembly sleeve (3); one end of the spring (5) is connected to the locking sleeve (4) and the other end is connected to the assembly sleeve (3).

4. The easily detachable wind wheel assembly according to claim 3, characterized in that: A positioning step (43) is arranged on the side of the locking surface (42) away from the unlocking groove (41); a positioning protrusion (33) is arranged on the outer wall of the assembly sleeve (3); the positioning protrusion (33) is located on the side of the positioning step (43) away from the unlocking groove (41); an annular cavity (7) is formed between the positioning step (43) and the positioning protrusion (33); the spring (5) is arranged in the annular cavity (7); one end of the spring (5) is connected to the positioning step (43), and the other end is connected to the positioning protrusion (33).

5. The easily detachable wind wheel assembly according to claim 3, characterized in that: When the locking ball (6) is in interference fit with the locking surface (42) and the annular groove (13), the spring (5) is in a naturally extended state; when part of the ball of the locking ball (6) enters the unlocking groove (41), the spring (5) is in a stressed stretched state or a stressed compressed state.

6. The easily detachable wind wheel assembly according to claim 4, characterized in that: A limiting arm (44) is provided at one end of the locking sleeve (4) close to the motor (1); the limiting arm (44) is located on a side of the positioning protrusion (33) away from the spring (5); and the positioning protrusion (33) is capable of stopping and limiting the limiting arm (44).

7. The easily detachable wind wheel assembly according to claim 2, characterized in that: The side of the unlocking groove (41) close to the locking surface (42) is an inclined surface or a smooth transition surface.

8. The easily detachable wind wheel assembly according to claim 1, characterized in that: The inner wall of the receiving hole (34) is an arc surface, and the opening diameter of the receiving hole (34) toward the motor shaft (11) is denoted as K, which is smaller than the diameter of the locking ball (6).

9. The easily detachable wind wheel assembly according to claim 1, characterized in that: A flattened shaft (12) is arranged at the end of the motor shaft (11); a first chamber (31) and a second chamber (32) which are connected in sequence are arranged in the assembly sleeve (3); the motor shaft (11) can pass through the first chamber (31); the second chamber (32) has a flattened hole; the flattened shaft (12) is snap-fitted with the flattened hole of the second chamber (32).

10. An air conditioner, characterized in that: The air conditioner comprises a motor (1) and an easily detachable wind wheel assembly according to any one of claims 1 to 9, wherein the motor (1) has a motor shaft (11), and the motor (1) is connected to the wind wheel assembly only in a snap-on manner via the motor shaft (11).

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