A ceiling machine and an air conditioner

CN224666193UActive Publication Date: 2026-08-21TCL AIR CONDITIONER ZHONGSHAN CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202521385027.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-07-02
Publication Date
2026-08-21
Estimated Expiration
2035-07-02

AI Technical Summary

Technical Problem

[0003]本实用新型提供一种天井机以及空调,以解决面板升降过程中引发的气流扰动进而产生噪音的技术问题

Benefits of technology

[0024]本申请提供的天井机,在面板活动连接于机壳的基础上,进一步将格栅活动连接于面板,面板升降过程中可移动格栅优化气流路径,减少气流扰动产生的噪音。

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224666193U_ABST
    Figure CN224666193U_ABST
Patent Text Reader

Abstract

The application provides a ceiling machine and an air conditioner. The ceiling machine comprises a machine shell, a panel arranged on the machine shell and forming an air outlet channel together with the machine shell, and a grille arranged on the panel and provided with an air inlet channel. The panel is movably connected to the machine shell in a first direction to open the air outlet channel, and the grille is movably and sealingly connected to the panel in the first direction. On the basis of movably connecting the panel to the machine shell, the grille is further movably connected to the panel. During the lifting of the panel, the movable grille optimizes the airflow path and reduces the noise generated by airflow disturbance.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] This application relates to the field of air conditioning technology, and in particular to a ceiling-mounted air conditioner and an air conditioner. Background Technology

[0002] A ceiling-mounted air conditioner is a common type of indoor unit for central air conditioning systems. It gets its name from the "cave" between the ceiling and the roof of the room, and is also known as a "ceiling-embedded air conditioner." Currently, some ceiling-mounted air conditioners have panels that are movable relative to the base, allowing for adjustment of the airflow. However, the rapid raising and lowering of the panel can easily cause airflow disturbances and generate noise. Utility Model Content

[0003] This utility model provides a ceiling fan and an air conditioner to solve the technical problem of noise caused by airflow disturbance during the raising and lowering of the panel.

[0004] To achieve the above objectives, this application proposes a riser machine, comprising:

[0005] chassis;

[0006] A panel is disposed on the housing and encloses the housing to form an air outlet channel; and,

[0007] A grille is provided on the panel, and the grille is provided with an air intake channel;

[0008] The panel is movably connected to the housing along a first direction to open the air outlet channel, and the grille is movably and sealingly connected to the panel along the first direction.

[0009] Optionally, in one embodiment, it further includes a first linear drive mechanism and a second linear drive mechanism, wherein the first linear drive mechanism is used to drive the panel to move along a first direction, and the second linear drive mechanism is used to drive the grille to move along the first direction.

[0010] Optionally, in one embodiment, it further includes a drive source, wherein the first linear drive mechanism includes a first drive unit and a first transmission unit, and the second linear drive mechanism includes a second drive unit and a second transmission unit;

[0011] The first driving part and the second driving part are coaxially connected. The radius of the first driving part is larger than the radius of the second driving part. The first transmission part is connected between the first driving part and the panel. The second transmission part is connected between the second driving part and the grille. The driving source is used to drive the first driving part and the second driving part to rotate synchronously. The first transmission part and the second transmission part drive the panel and the grille to move at different speeds.

[0012] Optionally, in one embodiment, the first driving part is a first wheel, the first transmission part is a first pull rope, the two ends of the first pull rope are respectively connected to the first wheel and the panel, the driving source is used to drive the first wheel to rotate, and the first pull rope is wound around the first wheel or released from the first wheel.

[0013] The second drive unit is a second wheel, the second transmission unit is a second pull rope, the two ends of the second pull rope are respectively connected to the second wheel and the panel, the drive source is used to drive the second wheel to rotate, and the second pull rope is wound around the second wheel or released from the second wheel.

[0014] Optionally, in one embodiment, the diameter ratio K of the first wheel and the second wheel satisfies: 1.2≤K≤3, and optionally 1.5≤K≤2.5.

[0015] Optionally, in one embodiment, the first linear drive mechanism further includes a plurality of first pulleys, which are arranged opposite to the first wheel and rotatably connected to the housing. The first pull rope passes through the first wheel, and the two ends of the first pull rope pass around the plurality of first pulleys and are connected to the panel.

[0016] The second linear drive mechanism further includes a plurality of second pulleys, which are arranged opposite to the second wheel and rotatably connected to the housing. The second pull rope passes through the second wheel, and the two ends of the second pull rope pass around the plurality of second pulleys and are connected to the grille.

[0017] The first pulleys and the second pulleys are coaxially connected in a one-to-one correspondence.

[0018] Optionally, in one embodiment, the first wheel and / or the second wheel are provided with an anti-slip layer.

[0019] Optionally, in one embodiment, the first driving part is a first gear, and the first transmission part is a first rack disposed on the panel, wherein the first gear meshes with the first rack;

[0020] The second driving part is a second gear, and the second transmission part is a second rack disposed on the grille, wherein the second gear meshes with the second rack;

[0021] The first gear and the second gear are coaxially arranged and rotatably connected to the housing.

[0022] Optionally, in one embodiment, the first linear drive mechanism is a first cylinder or a first linear motor, and the second linear drive mechanism is a second cylinder or a second linear motor.

[0023] This application also proposes an air conditioner, including a ceiling unit as described above and an outdoor unit.

[0024] The ceiling fan provided in this application, in addition to the panel being movably connected to the housing, further has a grille movably connected to the panel. During the panel's lifting and lowering process, the movable grille optimizes the airflow path and reduces noise generated by airflow disturbance. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the overall structure of the riser machine in this application;

[0027] Figure 2 This is a schematic diagram of the structure of the panel, grille, first linear drive mechanism and second linear drive mechanism in this application;

[0028] Figure 3 This is a schematic diagram of the structure of the first and second roulette wheels in this application.

[0029] Explanation of icon numbers:

[0030] 1. Housing; 2. Panel; 3. Grille; 4. Drive source; 5. First linear drive mechanism; 51. First wheel; 52. First pull rope; 53. First pulley; 6. Second linear drive mechanism; 61. Second wheel; 62. Second pull rope; 63. Second pulley; 7. Air outlet duct; 8. Air inlet duct.

[0031] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0032] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model. Furthermore, it should be understood that the specific embodiments described herein are only for illustration and explanation of the present utility model and are not intended to limit the present utility model.

[0033] In the description of this application, it should be understood that the terms "upper," "lower," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used solely for the convenience of describing this application and for simplification, and do not indicate or imply that the device or element referred to must have a unique orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or specifying the number of indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] "A and / or B" includes the following three combinations: A only, B only, and a combination of A and B.

[0036] The use of "applies to" or "configured to" in this application implies open and inclusive language, which does not exclude the applicability to or configuration to devices performing additional tasks or steps. Additionally, the use of "based on" implies openness and inclusivity, because processes, steps, calculations, or other actions "based on" one or more of the stated conditions or values ​​may in practice be based on additional conditions or values ​​beyond those stated.

[0037] In this application, the term "exemplary" is used to mean "used as an example, illustration, or description." Any embodiment described as "exemplary" in this application is not necessarily to be construed as being more preferred or advantageous than other embodiments. The following description is provided to enable any person skilled in the art to make and use this application. Details are set forth in the following description for purposes of explanation. It should be understood that those skilled in the art will recognize that this application can be made without using these specific details. In other instances, well-known structures and processes are not described in detail to avoid obscuring the description of this application with unnecessary detail. Therefore, this application is not intended to be limited to the embodiments shown, but is consistent with the broadest scope of the principles and features disclosed in this application.

[0038] This application provides a ceiling fan to solve the problem of noise caused by airflow disturbance during panel raising and lowering. The following description is in conjunction with the accompanying drawings.

[0039] In the embodiments of this application, such as Figure 1 and Figure 2 As shown, this type of ceiling hoist includes:

[0040] Casing 1;

[0041] Panel 2, disposed on housing 1 and enclosing housing 1 to form air outlet duct 7; and,

[0042] Grille 3 is installed on panel 2, and grille 3 is provided with air inlet channel 8;

[0043] The panel 2 is movably connected to the housing 1 along the first direction to open the air outlet 7, and the grille 3 is movably and sealingly connected to the panel 2 along the first direction.

[0044] It should be noted that the panel 2 may include a panel body and a connecting part. The connecting part has a similar cylindrical structure to achieve a sliding connection with the inside of the housing 1. At least a portion of the connecting part is spaced apart from the inner wall of the housing 1 to allow airflow. The panel body covers the gap between at least a portion of the connecting part and the inner wall of the housing 1. The panel 2 movably exposes the gap, thereby forming an air outlet channel 7.

[0045] "The grille 3 is movably and sealingly connected to the panel 2 along the first direction" means that when the grille 3 moves relative to the panel 2, the airflow entering from the grille 3 will not flow directly out between the grille 3 and the panel 2. The first direction can be a vertical direction or other directions inclined relative to the vertical direction. For example, the grille 3 may include an interconnected grille body and a grille enclosure, the grille enclosure having a similar cylindrical structure, and the grille enclosure slidingly connected to the connection of the panel 2 along the first direction to prevent the airflow of the air inlet channel 8 from flowing directly to the air outlet channel 7.

[0046] Understandably, based on the panel 2 being movably connected to the housing 1, a grille 3 is further movably connected to the panel 2. When the panel 2 opens the air outlet 7, the grille 3 can be moved further away from the housing 1 to optimize the airflow path and reduce the noise generated by airflow disturbance. At the same time, the increased distance between the panel 2 and the grille 3 along the first direction can reduce the possibility of the airflow from the air outlet 7 flowing directly to the air inlet 8, reduce the internal circulation of the whole unit, and improve the cooling and heating efficiency.

[0047] In some embodiments, such as Figure 2As shown, the ceiling machine also includes a first linear drive mechanism 5 and a second linear drive mechanism 6. The first linear drive mechanism 5 is used to drive the panel 2 to move along a first direction, and the second linear drive mechanism 6 is used to drive the grille 3 to move along the first direction.

[0048] It should be noted that the first linear drive mechanism 5 refers to a structure that can drive the panel 2 to move in a straight line, i.e., in the first direction. The second linear drive mechanism 6 refers to a structure that can drive the grille 3 to move in a straight line, i.e., in the first direction. The first linear drive mechanism 5 can refer to a gear rack, ball screw, linear motor, hydraulic cylinder, pneumatic cylinder, synchronous belt, rope belt, etc., but is not limited to these. The second linear drive mechanism 6 is similar.

[0049] It is understandable that the linear movement of the panel 2 and the grille 3 can be achieved through the first linear drive mechanism 5 and the second linear drive mechanism 6.

[0050] In some embodiments, such as Figure 2 As shown, the hoist also includes a drive source 4, a first linear drive mechanism 5 including a first drive unit and a first transmission unit, and a second linear drive mechanism 6 including a second drive unit and a second transmission unit.

[0051] The first drive unit and the second drive unit are coaxially connected. The radius of the first drive unit is larger than that of the second drive unit. The first transmission unit is connected between the first drive unit and the panel 2. The second transmission unit is connected between the second drive unit and the grille 3. The drive source 4 is used to drive the first drive unit and the second drive unit to rotate synchronously. The first transmission unit and the second transmission unit drive the panel 2 and the grille 3 to move at different speeds.

[0052] It should be noted that "the radius of the first drive unit is greater than the radius of the second drive unit" means that the basic structure of both the first and second drive units is circular. The rotational motion of the first drive unit is converted into linear motion by the first transmission unit, and the second transmission unit does the same. The drive source 4 can be a motor.

[0053] It is understandable that by using a first drive unit and a second drive unit with different radii, the release speed of the first drive unit is faster than that of the second drive unit. That is, the panel 2 is moved first to open the air outlet duct 7, and then the grille 3 is moved to optimize the airflow path. Differential movement between the panel 2 and the grille 3 can be achieved using a single drive source 4, resulting in simple control logic and low production costs.

[0054] In some embodiments, such as Figure 2As shown, the first driving part is the first wheel 51, the first transmission part is the first pull rope 52, the two ends of the first pull rope 52 are respectively connected to the first wheel 51 and the panel 2, the driving source 4 is used to drive the first wheel 51 to rotate, and the first pull rope 52 is wound around the first wheel 51 or released from the first wheel 51 accordingly.

[0055] The second drive unit is the second wheel 61, and the second transmission unit is the second pull rope 62. The two ends of the second pull rope 62 are connected to the second wheel 61 and the panel 2, respectively. The drive source 4 is used to drive the second wheel 61 to rotate, and the second pull rope 62 is wound around the second wheel 61 or released from the second wheel 61.

[0056] It is understandable that the differential motion between the panel 2 and the grid 3 is achieved by using the first wheel 51 and the second wheel 61 with different radii, as well as the first pull rope 52 and the second pull rope 62. The structure is simple and easy to manufacture.

[0057] Specifically, the first wheel 51 is detachably connected to the motor, such as by screws, and the first wheel 51 and the second wheel 61 are coaxial and fixedly connected. This allows for easy replacement of the first wheel 51 and the second wheel 61 in one go, enabling the selection of wheel radii with different sizes to achieve different driving purposes.

[0058] In some embodiments, such as Figure 3 As shown, the diameter ratio K of the first wheel 51 and the second wheel 61 satisfies: 1.2≤K≤3, and optionally 1.5≤K≤2.5.

[0059] It should be noted that K can satisfy 1.2 ≤ K ≤ 3, or 1.5 ≤ K ≤ 2.5.

[0060] Understandably, within the aforementioned diameter ratio range, not only can panel 2 and grille 3 achieve differential movement at a reasonable speed, but it also has a good noise reduction effect.

[0061] Specifically, K can also be 1.2, 1.5, 1.8, 2.0, 2.5 or 3, or a range between any two of the above values.

[0062] In some embodiments, such as Figure 2 As shown, the first linear drive mechanism 5 also includes a plurality of first pulleys 53, which are arranged relative to the first wheel 51 and rotatably connected to the housing 1. The first pull rope 52 passes through the first wheel 51, and the two ends of the first pull rope 52 pass around the plurality of first pulleys 53 and are connected to the panel 2.

[0063] The second linear drive mechanism 6 also includes a plurality of second pulleys 63, which are arranged relative to the second wheel disk 61 and rotatably connected to the housing 1. The second pull rope 62 passes through the second wheel disk 61, and the two ends of the second pull rope 62 pass around the plurality of second pulleys 63 and are connected to the grille 3.

[0064] Multiple first pulleys 53 and multiple second pulleys 63 are coaxially connected in a one-to-one correspondence.

[0065] It should be noted that the first pull rope 52 passes radially through the first wheel 51 and is secured to the first wheel 51 using countersunk screws. When the first wheel 51 rotates, the portions of the first pull rope 52 located on both sides of the first wheel 51 are gradually wound around or released from the first wheel 51. The portions of the first pull rope 52 located on both sides of the first wheel 51 should be of equal length to ensure that the panel 2 does not tilt. The second pull rope 62 is handled similarly.

[0066] It is understandable that the first pulley 53 and the second pulley 63 guide the first pull rope 52 and the second pull rope 62, which helps to form a vertical traction path.

[0067] In some embodiments, such as Figure 2 As shown, there are two first pulleys 53 relative to the first wheel 51, and two second pulleys 63 relative to the second wheel 61. The two first pulleys are deflected by 5° to 10° in the horizontal direction about the axis of the first wheel 51, or the two second pulleys 63 are deflected by 5° to 10° in the horizontal direction about the axis of the second wheel 61.

[0068] In some embodiments, the first wheel 51 and / or the second wheel 61 are provided with an anti-slip layer.

[0069] It should be noted that the anti-slip layer refers to a structure with anti-slip function. The anti-slip layer achieves its anti-slip effect by using materials with a high coefficient of friction and / or by incorporating anti-slip patterns. These patterns are formed by creating grooves in the anti-slip layer; the groove depth can be 0.5–1 mm, and the anti-slip patterns can be arranged in V-shapes, W-shapes, or other common anti-slip pattern shapes. Specifically, the material of the anti-slip layer can be PA66+30%GF, i.e., a composite material of polyamide 66 (PA66) and 30% glass fiber, or POM plastic.

[0070] Understandably, the anti-slip layer is used to minimize slippage of the first pull rope 52 and the second pull rope 62, thereby reducing unnecessary shaking of the panel 2 and the grille 3 during lifting and lowering.

[0071] In some embodiments, the first driving part is a first gear, and the first transmission part is a first rack disposed on the panel 2, wherein the first gear meshes with the first rack.

[0072] The second drive unit is a second gear, and the second transmission unit is a second rack provided in the grille 3. The second gear meshes with the second rack.

[0073] The first gear and the second gear are coaxially arranged and both are rotatably connected to the housing 1.

[0074] It is understandable that the differential motion between panel 2 and grille 3 is achieved by using first and second gears with different radii, as well as first and second racks. The structure is simple and easy to manufacture.

[0075] In addition, a limiting groove extending along the first direction can be provided on panel 2 to ensure that the connection between the first gear and the first rack will not fail, and a limiting groove extending along the first direction can also be provided on grille 3 to ensure that the connection between the second gear and the second rack will not fail.

[0076] In some embodiments, such as Figure 2 As shown, there are two of each of the first linear drive mechanism 5 and the second linear drive mechanism 6.

[0077] It should be noted that the first linear drive mechanism 5 and the second linear drive mechanism 6 can be any of the other embodiments.

[0078] It is understandable that the two first linear drive mechanisms 5 can correspond to the two opposite sides of the panel 2 and be connected, and the two second linear drive mechanisms 6 can correspond to the two opposite sides of the grille 3 and be connected, so as to ensure the stable lifting and lowering of the panel 2 and the grille 3.

[0079] In some embodiments, the first linear drive mechanism is a first cylinder or a first linear motor, and the second linear drive mechanism is a second cylinder or a second linear motor.

[0080] Understandably, the drive is achieved directly using a cylinder with driving force and a linear motor, simplifying the structure. Specifically, the first linear drive mechanism is fixedly connected to the housing 1, and the second linear drive mechanism is fixedly connected to the panel 2.

[0081] This application also provides an air conditioner, which includes the above-mentioned ceiling unit and an outdoor unit. The specific structure of the ceiling unit is as described in the above embodiments. Since the outdoor unit of this air conditioner adopts all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be described in detail here.

[0082] In some embodiments, the air conditioner also includes conventional air conditioning structures such as heat exchangers, fans, and electrical control boxes.

[0083] The airflow noise of the ceiling fan provided in this application was tested, and the specific results are shown in Table 1.

[0084] Table 1:

[0085]

[0086]

[0087] As shown in Table 1:

[0088] When K is in the range of 1.2 to 3.0, it can improve the airflow path and reduce airflow noise better than when K is 1.

[0089] In the above embodiments, the descriptions of each embodiment have different focuses. Parts not described in detail in a particular embodiment can be referred to in the relevant descriptions of other embodiments. In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Therefore, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0090] The above provides a detailed description of the ceiling-mounted air conditioner and outdoor unit provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A ceiling winch, characterized in that, include: Casing (1); Panel (2) is disposed on the housing (1) and encloses the housing (1) to form an air outlet channel (7); as well as, A grille (3) is provided on the panel (2), and the grille (3) is provided with an air inlet channel (8); The panel (2) is movably connected to the housing (1) along the first direction to open the air outlet channel (7), and the grille (3) is movably and sealingly connected to the panel (2) along the first direction.

2. The well machine according to claim 1, characterized in that, It also includes a first linear drive mechanism (5) and a second linear drive mechanism (6), the first linear drive mechanism (5) being used to drive the panel (2) to move along a first direction, and the second linear drive mechanism (6) being used to drive the grille (3) to move along a first direction.

3. The well machine according to claim 2, characterized in that, It also includes a drive source (4), the first linear drive mechanism (5) includes a first drive part and a first transmission part, and the second linear drive mechanism (6) includes a second drive part and a second transmission part; The first driving part and the second driving part are coaxially connected. The radius of the first driving part is greater than the radius of the second driving part. The first transmission part is connected between the first driving part and the panel (2). The second transmission part is connected between the second driving part and the grille (3). The driving source (4) is used to drive the first driving part and the second driving part to rotate synchronously. The first transmission part and the second transmission part drive the panel (2) and the grille (3) to move at different speeds.

4. The well machine according to claim 3, characterized in that, The first driving part is a first wheel (51), the first transmission part is a first pull rope (52), the two ends of the first pull rope (52) are respectively connected to the first wheel (51) and the panel (2), the driving source (4) is used to drive the first wheel (51) to rotate, and the first pull rope (52) is wound around the first wheel (51) or released from the first wheel (51); The second drive unit is a second wheel (61), the second transmission unit is a second pull rope (62), the two ends of the second pull rope (62) are respectively connected to the second wheel (61) and the panel (2), the drive source (4) is used to drive the second wheel (61) to rotate, and the second pull rope (62) is wound around the second wheel (61) or released from the second wheel (61).

5. The well machine according to claim 4, characterized in that, The diameter ratio K of the first wheel (51) and the second wheel (61) satisfies: 1.2≤K≤3, and optionally 1.5≤K≤2.

5.

6. The well machine according to claim 4, characterized in that, The first linear drive mechanism (5) further includes a plurality of first pulleys (53), which are arranged relative to the first wheel (51) and rotatably connected to the housing (1). The first pull rope (52) passes through the first wheel (51), and the two ends of the first pull rope (52) pass around the plurality of first pulleys (53) and are connected to the panel (2). The second linear drive mechanism (6) further includes a plurality of second pulleys (63), which are arranged opposite to the second wheel (61) and rotatably connected to the housing (1). The second pull rope (62) passes through the second wheel (61), and the two ends of the second pull rope (62) pass around the plurality of second pulleys (63) and are connected to the grille (3). Multiple first pulleys (53) are coaxially connected to multiple second pulleys (63) in a one-to-one correspondence.

7. The well machine according to claim 4, characterized in that, The first wheel (51) and / or the second wheel (61) are provided with an anti-slip layer.

8. The well machine according to claim 3, characterized in that, The first driving part is a first gear, and the first transmission part is a first rack disposed on the panel (2), wherein the first gear meshes with the first rack; The second driving part is a second gear, and the second transmission part is a second rack disposed on the grille (3), wherein the second gear meshes with the second rack; The first gear and the second gear are coaxially arranged and rotatably connected to the housing (1).

9. The well machine according to claim 2, characterized in that, The first linear drive mechanism (5) is a first cylinder or a first linear motor, and the second linear drive mechanism (6) is a second cylinder or a second linear motor.

10. An air conditioner, characterized in that, Includes the ceiling unit as described in any one of claims 1-9 and the outdoor unit of the air conditioner.