Opening and closing door assembly and air conditioner having the same

Abstract

The present invention discloses a switch door assembly and an air conditioner having the same. The air conditioner includes a shell and a driving mechanism. The shell is provided with an air outlet. The switch door assembly includes: a door body, which is slidably arranged outside the shell along the length direction of the door body to open or close the air outlet, and a positioning column is arranged on the side of the door body facing the shell; a driven part, which is arranged on the side of the door body facing the shell, and a positioning hole matched with the positioning column is arranged on the driven part; a vibration-damping sleeve, which is located between the outer peripheral wall of the positioning column and the inner peripheral wall of the positioning hole, and the driving mechanism is connected to the driven part to drive the switch door assembly to slide. According to the switch door assembly of the present invention, by arranging the vibration-damping sleeve between the positioning column of the door body and the positioning hole of the driven part, the vibration of the driving mechanism can be effectively isolated from being transmitted from the driven part to the door body, and the phenomenon of vibration and abnormal noise of the door body can be effectively improved.

Description

Technical Field

[0001] The invention relates to the technical field of air handling equipment, and in particular to a switch door assembly and an air conditioner having the same. Background Art

[0002] In the related art, an air conditioner with a door that opens and closes during movement is prone to abnormal noise or vibration during the sliding process of the door, which affects the user's use. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides a switch door assembly, which can reduce vibration and abnormal noise during operation.

[0004] The present invention also provides an air conditioner, comprising the above-mentioned switch door assembly.

[0005] According to the switch door assembly of the embodiment of the present invention, the switch door assembly is used for an air conditioner, and the air conditioner includes a shell and a driving mechanism, the shell is provided with an air outlet, and the switch door assembly includes: a door body, the door body is slidably arranged outside the shell along the length direction of the door body to open or close the air outlet, and a positioning column is provided on the side of the door body facing the shell; a driven part, the driven part is arranged on the side of the door body facing the shell, and the driven part is provided with a positioning hole that cooperates with the positioning column; a vibration-damping sleeve, the vibration-damping sleeve is located between the outer peripheral wall of the positioning column and the inner peripheral wall of the positioning hole, and the driving mechanism is connected to the driven part to drive the switch door assembly to slide.

[0006] According to the switch door assembly of the embodiment of the present invention, by providing a vibration-damping sleeve between the positioning column of the door body and the positioning hole of the driven part, the vibration of the driving mechanism can be effectively isolated from being transmitted from the driven part to the door body, thereby effectively improving the phenomenon of vibration and abnormal noise of the door body.

[0007] According to some embodiments of the present invention, a groove is provided on the outer circumferential wall of the vibration damping sleeve, the groove extends into a ring shape along the circumferential direction of the vibration damping sleeve, the groove is spaced apart from both axial ends of the vibration damping sleeve, and the inner circumferential wall of the positioning hole cooperates with the bottom wall of the groove.

[0008] In some embodiments of the present invention, a mounting hole is provided on the positioning column, and the switch door assembly further comprises a fastener, and the fastener is connected to the mounting hole to fix the driven member and the door body.

[0009] In some embodiments of the present invention, the height of the positioning column is greater than the height of the vibration-damping sleeve.

[0010] According to some embodiments of the present invention, there are a plurality of spaced-apart positioning posts, a plurality of positioning holes, and a plurality of vibration-damping sleeves, and the plurality of positioning holes and the plurality of vibration-damping sleeves correspond one-to-one to the plurality of positioning posts, respectively.

[0011] According to some embodiments of the present invention, the plurality of positioning columns include a first positioning column and a second positioning column, the first positioning column and the second positioning column are spaced apart along the sliding direction of the door body, the length of the first positioning column along the sliding direction of the door body is smaller than the length of the second positioning column along the sliding direction of the door body, the outer peripheral wall of the second positioning column is in contact with the inner peripheral wall of the corresponding vibration damping sleeve, and at least a portion of the outer peripheral wall of the first positioning column is spaced apart from the inner peripheral wall of the corresponding vibration damping sleeve.

[0012] In some embodiments of the present invention, there are a plurality of first positioning posts, and the plurality of first positioning posts are spaced apart along the sliding direction of the door body.

[0013] In some embodiments of the present invention, there are a plurality of the second positioning posts, and the plurality of the second positioning posts are spaced apart along a direction perpendicular to the sliding direction of the door body.

[0014] According to some embodiments of the present invention, the cross-section of the positioning column is oblong, the cross-section of the positioning hole is oblong, and the length direction of the cross-section of the positioning column and the length direction of the cross-section of the positioning hole are the same as the length direction of the door body.

[0015] According to some embodiments of the present invention, the driving mechanism includes a driving motor and a driving gear connected to the driving motor, and the driven member is a rack meshing with the gear.

[0016] According to some embodiments of the present invention, a guide rail is provided on the housing, and the driven member is slidably provided on the guide rail.

[0017] According to an embodiment of the present invention, the air conditioner comprises: a shell, on which an air outlet is provided; a driving mechanism, which is provided on the shell; the above-mentioned opening and closing door assembly, wherein the door body is slidably provided outside the shell along the length direction of the door body to open or close the air outlet, and the driving mechanism is connected to the driven member to drive the opening and closing door assembly to slide.

[0018] According to the air conditioner of the embodiment of the present invention, by providing a vibration-damping sleeve between the positioning column of the door body and the positioning hole of the driven part, the vibration of the driving mechanism can be effectively isolated from being transmitted from the driven part to the door body, thereby effectively improving the phenomenon of vibration and abnormal noise of the door body.

[0019] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The above and / or additional aspects and advantages of the present invention will become apparent and easily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0021] Figure 1 is a perspective view of an air conditioner according to an embodiment of the present invention;

[0022] Figure 2 is a perspective view of an air conditioner according to an embodiment of the present invention from another angle;

[0023] Figure 3 is an exploded view of an air conditioner according to an embodiment of the present invention;

[0024] Figure 4 is a perspective view of a housing of an air conditioner according to an embodiment of the present invention;

[0025] Figure 5 yes Figure 4 The enlarged view of point A in the middle;

[0026] Figure 6 is a three-dimensional view from another angle of the door opening and closing assembly according to an embodiment of the present invention;

[0027] Figure 7 yes Figure 6 The enlarged view of point B in the middle;

[0028] Figure 8 yes Figure 6 Enlarged view of point C in the middle;

[0029] Fig. 9 is an exploded view of a switch door assembly according to an embodiment of the present invention;

[0030] Fig.10 is a three-dimensional diagram of a vibration-damping sleeve of a door opening and closing assembly according to an embodiment of the present invention;

[0031] Fig.11 is a rear view of a door opening and closing assembly according to an embodiment of the present invention;

[0032] Fig.12 is along Fig.11 Sectional view of the mid-DD line;

[0033] Fig.13 yes Fig.12 Enlarged view of point E in the middle;

[0034] Fig.14 is a perspective view of a driven member of a switch door assembly according to an embodiment of the present invention;

[0035] Fig.15 is a perspective view of a driving mechanism of an air conditioner according to an embodiment of the present invention.

[0036] Reference numerals:

[0037] air conditioner 100,

[0038] Opening and closing door assembly 10,

[0039] Door body 1, positioning column 11, mounting hole 111, first positioning column 112, second positioning column 113, boss 14, reinforcing rib 15,

[0040] Driven member 2, positioning hole 21, protrusion 22,

[0041] Vibration damping sleeve 3, groove 31,

[0042] Shell 20, air outlet 201, guide rail 202, sliding groove 2021,

[0043] Driving mechanism 30 , driving motor 301 , gear 32 . DETAILED DESCRIPTION

[0044] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0045] In the description of the present invention, it should be understood that the terms "length", "upper", "lower", "top", "bottom", "inner", "outer", "axial", "circumferential" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

[0046] The following describes a door opening and closing assembly 10 according to an embodiment of the present invention with reference to the accompanying drawings.

[0047] like Figure 1-Figure 3 As shown, the switch door assembly 10 according to an embodiment of the present invention is used for an air conditioner 100, which includes a shell 20 and a driving mechanism 30. The shell 20 is provided with an air outlet 201, and the switch door assembly 10 can be slidably arranged on the shell 20 to open or close the air outlet 201.

[0048] like Figure 6-Figure 9 As shown, the door opening and closing assembly 10 according to the embodiment of the present invention includes: a door body 1, a driven component 2 and a vibration-damping sleeve 3.

[0049] Specifically, the door body 1 is arranged along the length direction of the door body 1 (such as Figure 1 The air outlet 201 can be slidably arranged outside the housing 20 in the up and down directions shown in the figure to open or close the air outlet 201. Figure 6-Figure 9 As shown, a positioning column 11 is provided on the side of the door body 1 facing the housing 20, and a driven member 2 is provided on the side of the door body 1 facing the housing 20. A positioning hole 21 matching with the positioning column 11 is provided on the driven member 2, and the positioning column 11 can be arranged in the positioning hole 21. The vibration-damping sleeve 3 is located between the outer peripheral wall of the positioning column 11 and the inner peripheral wall of the positioning hole 21, and the driving mechanism 30 is connected to the driven member 2 to drive the door opening and closing assembly 10 to slide. During operation, the driving mechanism 30 drives the driven member 2 to move, and the driven member 2 is connected to the positioning column 11 and the positioning hole 21, thereby driving the door body 1 to move to realize the opening or closing of the air outlet 201.

[0050] During the operation of the driving mechanism 30, vibration will be generated, and the vibration will be transmitted to the door body 1 along the driven part 2, thereby causing abnormal noise and vibration in the door body 1. By setting a vibration-damping sleeve 3 between the positioning column 11 and the positioning hole 21, the vibration-damping sleeve 3 can absorb the vibration, effectively blocking the vibration from being transmitted from the driven part 2 to the door body 1, thereby achieving vibration reduction between the driven part 2 and the door body 1, thereby greatly improving the phenomenon of vibration and abnormal noise in the door body 1 and meeting the user's usage requirements.

[0051] Alternatively, if Figure 4 , Figure 5 , Fig.14 and Fig.15 As shown, the driving mechanism 30 includes a driving motor 301 and a driving gear 32 connected to the driving motor 301, and the driven member 2 is a rack meshed with the gear 32. The driving motor 301 rotates to drive the gear 32 to rotate, the gear 32 meshes with the rack to drive the rack to move, and the rack is connected to the door body 1 to drive the door body 1 to move to open or close the air outlet 201.

[0052] Furthermore, if Figure 4 , Figure 5 , Fig.14 and Fig.15As shown, there are two drive motors 301 spaced apart in a direction perpendicular to the moving direction of the racks, there are two gears 32, the two gears 32 correspond to and are connected to the two drive motors 301 one by one, there are two racks, the two racks are located between the two gears 32, the teeth of the two racks are respectively located on the sides of the two racks away from each other, and the ends of the two racks close to each other are connected. Preferably, the two racks are an integral part. This can improve the reliability of the drive mechanism 30 driving the door body 1 to move, and ensure the smoothness of the door body 1 during the movement.

[0053] like Figure 3 As shown, the air outlet 201 is located at the upper part of the shell 20 , the driving mechanism 30 is located below the air outlet 201 , and the door body 1 can move in the up and down directions to open or close the air outlet 201 .

[0054] Of course, the present invention is not limited thereto, and the driven member 2 may also be a slider, and the driving mechanism 30 may also be a screw mechanism that cooperates with the slider.

[0055] Optionally, the vibration-damping sleeve 3 is an elastic member, such as a rubber sleeve.

[0056] According to the switch door assembly 10 of the embodiment of the present invention, by providing a vibration-damping sleeve 3 between the positioning column 11 of the door body 1 and the positioning hole 21 of the driven part 2, the vibration of the driving mechanism 30 can be effectively isolated from being transmitted from the driven part 2 to the door body 1, thereby effectively improving the phenomenon of vibration and abnormal noise of the door body 1.

[0057] like Figure 10-13 As shown, a groove 31 is provided on the outer peripheral wall of the vibration-damping sleeve 3, and the groove 31 extends in a ring shape along the circumferential direction of the vibration-damping sleeve 3. The groove 31 is spaced apart from both axial ends of the vibration-damping sleeve 3, and the inner peripheral wall of the positioning hole 21 cooperates with the bottom wall of the groove 31. The parts of the vibration-damping sleeve 3 located at both ends of the groove 31 are respectively located on both sides of the driven member 2, and the driven member 2 is clamped in the groove 31. In this way, the reliability of the fixation between the vibration-damping sleeve 3 and the driven member 2 can be improved, and the vibration-damping sleeve 3 can be prevented from falling off, thereby ensuring the vibration-damping effect of the vibration-damping sleeve 3 on the door body 1, and improving the phenomenon of vibration and abnormal noise of the door body 1.

[0058] Optionally, the inner peripheral wall of the positioning hole 21 is in contact with the bottom wall of the groove 31 .

[0059] Furthermore, if Figure 7 and Figure 8As shown, the positioning column 11 is provided with a mounting hole 111, and the door switch assembly 10 further includes a fastener, which is connected to the mounting hole 111 to fix the driven member 2 and the door body 1. In this way, the connection and positioning of the door body 1 and the driven member 2 can be realized on the same component, simplifying the connection between the door body 1 and the driven member 2. At the same time, it can also avoid the phenomenon that the vibration of the driven member 2 is transmitted to the door body 1 due to the connection between the door body 1 and other components of the driven member 2.

[0060] Optionally, the fastener is a screw, and the mounting hole 111 is a screw hole. After the screw hole is connected to the positioning column 11, the driven component 2 is located between the door body 1 and the nut of the screw, and the nut of the screw limits the driven component 2 from coming off the positioning column 11.

[0061] Furthermore, if Fig.13 As shown, the height of the positioning column 11 is greater than the height of the vibration-damping sleeve 3. Therefore, after the fasteners such as screws are connected to the positioning column 11, the fasteners can be prevented from squeezing the vibration-damping sleeve 3, thereby ensuring the vibration-damping effect of the vibration-damping sleeve 3 and reducing the transmission of vibration. Optionally, the height difference between the positioning column 11 and the vibration-damping sleeve 3 can be no greater than 0.5 mm, thereby preventing the height difference between the positioning column 11 and the vibration-damping sleeve 3 from being too large, resulting in a large gap between the driven part 2 and the door body 1 and shaking.

[0062] In some embodiments of the present invention, Figure 5 , Figure 6 , Fig. 9 and Fig.14 As shown, there are multiple spaced positioning posts 11, multiple positioning holes 21, and multiple vibration-damping sleeves 3, and the multiple positioning holes 21 and the multiple vibration-damping sleeves 3 correspond to the multiple positioning posts 11. This can improve the reliability of connection and positioning between the door body 1 and the driven member 2.

[0063] Furthermore, if Figure 5 , Figure 6 , Fig. 9 and Fig.14 As shown, the plurality of positioning posts 11 include a first positioning post 112 and a second positioning post 113, the first positioning post 112 and the second positioning post 113 are spaced apart along the sliding direction of the door body 1, the length of the first positioning post 112 along the sliding direction of the door body 1 is less than the length of the second positioning post 113 along the sliding direction of the door body 1, the outer peripheral wall of the second positioning post 113 fits with the inner peripheral wall of the corresponding vibration-damping sleeve 3, and at least part of the outer peripheral wall of the first positioning post 112 is spaced apart from the inner peripheral wall of the corresponding vibration-damping sleeve 3. It can be understood that there is a tight sleeve between the second positioning post 113 and the vibration-damping sleeve 3, and there is a loose sleeve between the first positioning post 112 and the vibration-damping sleeve 3. This can avoid the situation where the door body 1 or the driven part 2 cannot be assembled together due to length deviation during processing, such as injection molding.

[0064] Alternatively, if Figure 5 , Figure 6 and Fig. 9 As shown, there are multiple first positioning columns 112, and the multiple first positioning columns 112 are spaced apart along the sliding direction of the door body 1. This can improve the reliability of the connection and positioning between the door body 1 and the driven member 2. In the sliding direction of the door body 1, the multiple first positioning columns 112 can be located on one side of the second positioning column 113, such as above, or on the other side of the second positioning column 113, such as below. Of course, the multiple first positioning columns 112 can also be partially located on one side of the second positioning column 113 and partially located on the other side of the second positioning column 113.

[0065] For example, in Figure 5 In the example shown, there are three first positioning posts 112 , and all of them are located above the second positioning posts 113 .

[0066] Alternatively, if Figure 5 , Figure 6 and Fig. 9 As shown, there are multiple second positioning posts 113, and the multiple second positioning posts 113 are spaced apart in a direction perpendicular to the sliding direction of the door body 1. This can improve the reliability of the connection and positioning between the door body 1 and the driven member 2, and at the same time ensure that the door body 1 and the driven member 2 can be assembled. For example, in the example shown in the figure, there are two second positioning posts 113 spaced apart.

[0067] Optionally, the difference between the length of the first positioning column 112 along the sliding direction of the door body 1 and the length of the second positioning column 113 along the sliding direction of the door body 1 is no more than 3 mm, thereby ensuring the reliability of the connection and positioning between the door body 1 and the driven part 2 and facilitating the connection between the door body 1 and the driven part 2.

[0068] In some embodiments of the present invention, Figure 7 and Figure 8 As shown, the cross section of the positioning column 11 is an oblong shape, the cross section of the positioning hole 21 is an oblong shape, and the length direction of the cross section of the positioning column 11 and the length direction of the cross section of the positioning hole 21 are both the same as the length direction of the door body 1. This facilitates the connection between the door body 1 and the driven member 2 and improves the reliability of the connection between the door body 1 and the driven member 2.

[0069] Among them, "oblong" can be defined as: a figure formed by selecting two points on the same diameter of a circle or selecting two arcs on the circle that are symmetrical about the center of the circle, and stretching the circle along the straight line or arc. For example, an oblong can be as follows Figure 7 , Figure 8 The shapes of the positioning column 11 and the positioning hole 21 shown in the figure can be formed from an oblong shape to an elliptical shape.

[0070] In some embodiments of the present invention, Fig.13 As shown, a boss 14 is provided on the door body 1, and a positioning column 11 is provided on the boss 14. The cross-sectional area of ​​the boss 14 is larger than the cross-sectional area of ​​the positioning column 11, and the driven member 2 can be supported on the free end surface of the boss 14. In this way, the door body 1 can be better spaced from the housing 20 so as to slide outside the housing 20.

[0071] Furthermore, a reinforcing rib 15 is provided between the outer peripheral wall of the boss 14 and the surface of the door body 1 facing the housing 20 . There are a plurality of reinforcing ribs 15 , and the plurality of reinforcing ribs 15 are spaced apart along the axial direction of the boss 14 .

[0072] In some embodiments of the present invention, both sides of the driven part 2 are provided with protrusions 22 surrounding the positioning hole 21, and the positioning hole 21 passes through the protrusions 22, thereby improving the strength of the driven part 2 and facilitating the cooperation between the driven part 2 and the vibration damping sleeve 3.

[0073] In some embodiments of the present invention, Figure 3-Figure 5 As shown, the housing 20 is provided with a guide rail 202, and the driven member 2 is slidably arranged on the guide rail 202. Thus, the moving track of the driven member 2 can be limited, thereby limiting the moving track of the door body 1, and ensuring the reliability of the door body 1.

[0074] Alternatively, if Figure 3 As shown, a sliding groove 2021 is provided on the guide rail 202 , and the driven member 2 is slidably disposed in the sliding groove 2021 .

[0075] The air conditioner 100 according to the embodiment of the present invention is described below.

[0076] The air conditioner 100 according to the embodiment of the present invention includes a housing 20 , a driving mechanism 30 and the above-mentioned door opening and closing assembly 10 .

[0077] Specifically, the housing 20 is provided with an air outlet 201, the driving mechanism 30 is provided on the housing 20, the door body 1 is slidably provided outside the housing 20 along the length direction of the door body 1 to open or close the air outlet 201, and the driving mechanism 30 is connected to the driven member 2 to drive the door opening and closing assembly 10 to slide. During operation, the driving mechanism 30 drives the driven member 2 to move, and the driven member 2 is connected to the positioning column 11 and the positioning hole 21, thereby driving the door body 1 to move to open or close the air outlet 201.

[0078] According to the air conditioner 100 of the embodiment of the present invention, by providing a vibration-damping sleeve 3 between the positioning column 11 of the door body 1 and the positioning hole 21 of the driven part 2, the vibration of the driving mechanism 30 can be effectively isolated from being transmitted from the driven part 2 to the door body 1, thereby effectively improving the phenomenon of vibration and abnormal noise of the door body 1.

[0079] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0080] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

[0081] Although the embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the claims and their equivalents.

Claims

1. A door opening and closing assembly, characterized in that: The switch door assembly is used for an air conditioner, the air conditioner comprises a housing and a driving mechanism, the housing is provided with an air outlet, and the switch door assembly comprises: A door body, the door body being slidably arranged outside the shell along the length direction of the door body to open or close the air outlet, and a positioning column is provided on one side of the door body facing the shell; A driven member, the driven member is arranged on a side of the door body facing the shell, the driven member is provided with a positioning hole matched with the positioning column, and the driven member drives the door body to move through the connection between the positioning column and the positioning hole; A vibration-damping sleeve is located between the outer peripheral wall of the positioning column and the inner peripheral wall of the positioning hole. The driving mechanism is connected to the driven member to drive the switch door assembly to slide.

2. The door opening and closing assembly according to claim 1, characterized in that: A groove is provided on the outer peripheral wall of the vibration damping sleeve, and the groove extends in a ring shape along the circumferential direction of the vibration damping sleeve. The groove is spaced apart from both axial ends of the vibration damping sleeve, and the inner peripheral wall of the positioning hole cooperates with the bottom wall of the groove.

3. The door opening and closing assembly according to claim 2, characterized in that: The positioning column is provided with a mounting hole, and the switch door assembly further comprises a fastener, and the fastener is connected to the mounting hole to fix the driven component and the door body.

4. The door opening and closing assembly according to claim 3, characterized in that: The height of the positioning column is greater than the height of the vibration-damping sleeve.

5. The door opening and closing assembly according to claim 1, characterized in that: There are a plurality of spaced-apart positioning posts, a plurality of positioning holes, and a plurality of vibration-damping sleeves. The plurality of positioning holes and the plurality of vibration-damping sleeves correspond one-to-one to the plurality of positioning posts, respectively.

6. The door opening and closing assembly according to claim 5, characterized in that: The multiple positioning columns include a first positioning column and a second positioning column, the first positioning column and the second positioning column are spaced apart along the sliding direction of the door body, the length of the first positioning column along the sliding direction of the door body is smaller than the length of the second positioning column along the sliding direction of the door body, the outer peripheral wall of the second positioning column is in contact with the inner peripheral wall of the corresponding vibration damping sleeve, and at least a portion of the outer peripheral wall of the first positioning column is spaced apart from the inner peripheral wall of the corresponding vibration damping sleeve.

7. The door opening and closing assembly according to claim 6, characterized in that: There are a plurality of the first positioning posts, and the plurality of the first positioning posts are spaced apart along the sliding direction of the door body.

8. The door opening and closing assembly according to claim 6, characterized in that: There are a plurality of the second positioning posts, and the plurality of the second positioning posts are spaced apart along a direction perpendicular to the sliding direction of the door body.

9. The door opening and closing assembly according to claim 1, characterized in that: The cross section of the positioning column is an oblong shape, the cross section of the positioning hole is an oblong shape, and the length direction of the cross section of the positioning column and the length direction of the cross section of the positioning hole are both the same as the length direction of the door body.

10. The door opening and closing assembly according to claim 1, characterized in that: The driving mechanism comprises a driving motor and a driving gear connected to the driving motor, and the driven member is a rack meshing with the gear.

11. The door opening and closing assembly according to claim 1, characterized in that: The housing is provided with a guide rail, and the driven member is slidably arranged on the guide rail.

12. An air conditioner, characterized in that: include: A shell, wherein an air outlet is provided on the shell; A driving mechanism, wherein the driving mechanism is arranged on the housing; According to the switch door assembly according to any one of claims 1-11, the door body is slidably arranged outside the shell along the length direction of the door body to open or close the air outlet, and the driving mechanism is connected to the driven part to drive the switch door assembly to slide.

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