Ceiling machine

Abstract

This invention provides a ceiling fan. The ceiling fan includes a main frame; an air outlet assembly, which is vertically and flexibly connected to the main frame via a lifting mechanism; the lifting mechanism includes a drive structure disposed on the main frame, and the drive structure is provided with a first limiting structure, while the main frame is provided with a second limiting structure, the first limiting structure and the second limiting structure engaging in a limiting cooperation. The ceiling fan provided by this invention utilizes the limiting structure to limit the drive structure. When the drive structure experiences a reaction force during the lifting and lowering of the air outlet assembly, causing displacement or vibration, the limiting structure will block the movement, thus stopping the shift and ensuring the reliable positioning of the drive structure and the smooth operation of the air outlet assembly, thereby ensuring the reliable lifting and lowering of the air outlet assembly.

Description

Technical Field

[0001] This invention relates to the field of air handling equipment technology, and in particular to a ceiling-mounted air handling unit. Background Technology

[0002] Currently, the air outlet component of existing ceiling fans is a liftable structure, with the main frame fixedly installed on the outer circumference of the air outlet component. When the ceiling fan is working, the air outlet component lowers to a certain height, forming a height difference with the main frame. The air outlet component and the main frame located on the outer side of the air outlet component form an air outlet, and the fan blows air from inside the ceiling fan through the air outlet.

[0003] However, due to the production errors and assembly gaps in each part of the ceiling fan, when the mechanism is in operation, the lifting mechanism will deviate and vibrate within the gap range under the influence of the load reaction force, affecting the smooth operation of the mechanism and causing unreliable lifting of the air outlet component. Summary of the Invention

[0004] In order to solve the technical problem of unreliable lifting of the air outlet component in the prior art, a ceiling fan is provided that uses a limiting structure to improve the limiting of the drive structure, thereby improving the lifting reliability of the air outlet component.

[0005] A ceiling machine, comprising:

[0006] Main framework;

[0007] An air outlet assembly is vertically and flexibly connected to the main frame via a lifting mechanism;

[0008] The lifting mechanism includes a drive structure, which is disposed on the main frame. The drive structure is provided with a first limiting structure, and the main frame is provided with a second limiting structure. The first limiting structure and the second limiting structure cooperate in limiting the movement.

[0009] Alternatively, the lifting mechanism includes a housing, which is disposed on the main frame, and the driving structure is disposed inside the housing. A second limiting structure is provided on the housing, and the first limiting structure and the second limiting structure are mutually limiting.

[0010] The driving structure includes a power unit and a driving gear. The power unit is disposed on the main frame or the housing, and the power unit can drive the driving gear to rotate. The driving gear is provided with the first limiting structure.

[0011] The drive gear includes a hub and meshing teeth. Along the axial direction of the hub, the hub includes a meshing section and a limiting section. The meshing teeth are disposed on the meshing section, and the limiting section constitutes the first limiting structure. The power unit is connected to the meshing section.

[0012] A limiting ring is provided on the main frame or the shell, the limiting ring constituting the second limiting structure, the limiting segment being located inside the limiting ring, and the limiting segment being in clearance fit with the limiting ring; or, the limiting segment being sleeved on the limiting ring, and the limiting segment being in clearance fit with the limiting ring.

[0013] The lifting mechanism also includes a housing, which is disposed on the main frame, and the drive gear is disposed inside the housing. The second limiting structure is formed on the inner wall of the housing.

[0014] The lifting mechanism further includes a rack, which is disposed on the air outlet assembly and meshes with the drive gear. A third limiting structure is provided on the main frame or the housing, which is located on the side of the rack away from the drive gear and is engaged with the rack for limiting.

[0015] The rack is provided with a guide groove, and the main frame is provided with a guide wheel. The guide wheel is rotatably disposed in the guide groove, and the guide wheel constitutes the third limiting structure.

[0016] The lifting mechanism is provided with at least three first locking structures, and the main frame is provided with a second locking structure. The first locking structures and the second locking structures are matched one-to-one.

[0017] The first locking structure includes at least two first screw holes and at least one positioning element, and the second locking structure includes a second screw hole and a positioning groove, wherein the first screw hole corresponds one-to-one with the second screw hole, and the positioning element corresponds one-to-one with the positioning groove.

[0018] There is a height difference between the first screw hole and the positioning element.

[0019] All of the first locking structures are distributed in a polygonal shape.

[0020] The air outlet assembly includes an air outlet frame, which forms an air outlet between itself and the main frame. The air outlet frame can be raised and lowered independently.

[0021] The air outlet assembly includes an air outlet frame and a return air panel. An air outlet is formed between the air outlet frame and the main frame. The return air panel is provided with a return air outlet. The air outlet frame and the return air panel are connected and rise and fall together.

[0022] The ceiling fan provided by this invention uses a limiting structure to limit the drive structure. When the drive structure is subjected to a reaction force and causes displacement or shaking during the lifting and lowering of the air outlet component, it will be blocked by the limiting structure and thus stop the displacement, ensuring the reliability of the position of the drive structure and the smoothness of the drive of the air outlet component, thereby ensuring the reliability of the lifting and lowering of the air outlet component. Attached Figure Description

[0023] Figure 1 A cross-sectional view of the lifting mechanism provided in an embodiment of the present invention;

[0024] Figure 2 This is a schematic diagram of the structure of the drive gear provided in an embodiment of the present invention;

[0025] Figure 3 This is a schematic diagram of the structure of the housing provided in an embodiment of the present invention;

[0026] Figure 4 A schematic diagram of the drive gear, rack, and third limiting structure provided in an embodiment of the present invention;

[0027] Figure 5 A partial assembly diagram of the main frame and lifting mechanism provided in an embodiment of the present invention;

[0028] Figure 6 This is a schematic diagram of the lifting mechanism provided in an embodiment of the present invention;

[0029] Figure 7 A partial schematic diagram of the main frame provided in an embodiment of the present invention;

[0030] In the picture:

[0031] 1. Main frame; 21. First limiting structure; 11. Second limiting structure; 22. Power unit; 23. Meshing teeth; 24. Meshing section; 25. Limiting section; 26. Housing; 27. Rack; 12. Third limiting structure; 28. First locking structure; 13. Second locking structure. Detailed Implementation

[0032] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the invention.

[0033] A ceiling-mounted air conditioner is a type of air conditioner that is recessed into the ceiling to reduce space usage. It exchanges heat through air outlets on its surface. Due to the limited location of these outlets, it can only blow air in a set direction and cannot provide horizontal airflow during cooling. Current technology aims to achieve horizontal airflow in cooling mode, allowing the air to adhere to the wall. This is achieved by designing the air outlet assembly as a height-adjustable structure, with the main frame fixed to the outer circumference of the assembly. During operation, the air outlet assembly lowers to a certain height, creating a height difference with the main frame. The air outlet is formed by the assembly and the frame, and the fan blows air from inside the unit through these outlets. When the air conditioner is in cooling mode, the airflow needs to be as parallel to the horizontal plane as possible to increase the air delivery distance, achieving a waterfall-like cooling effect and improving user comfort.

[0034] In existing technologies, when the drive structure moves the air outlet component, the air outlet component exerts a reaction force on the drive structure. This reaction force forces the drive structure to shift and vibrate, reducing its position and driving effect on the air outlet component. Ultimately, this makes the lifting and lowering process of the air outlet component unreliable. When the air outlet component fails to descend to the set position, the size, shape, and airflow guidance of the air outlet formed between the air outlet component and the main frame fail to meet the set requirements. Conversely, when the air outlet component fails to rise to the set position, it cannot fit perfectly against the main frame 1, leaving gaps on the ceiling fan. This affects aesthetics and allows dust and impurities to enter the ceiling fan, ultimately causing unreliable operation. Therefore, this application provides a method... Figures 1 to 7 The ceiling fan shown includes: a main frame 1; an air outlet assembly, which is vertically and flexibly connected to the main frame 1 via a lifting mechanism; the lifting mechanism includes a drive structure, which is disposed on the main frame 1, and the drive structure is provided with a first limiting structure 21, while the main frame 1 is provided with a second limiting structure 11, the first limiting structure 21 and the second limiting structure 11 engaging in limiting cooperation. By using the limiting structures to limit the drive structure, when the drive structure experiences a reaction force during the lifting and lowering of the air outlet assembly, causing displacement or vibration, the limiting structures will block the movement, thus stopping the displacement and ensuring the reliable position of the drive structure and the smoothness of its movement of the air outlet assembly, thereby ensuring the reliable lifting and lowering of the air outlet assembly.

[0035] Specifically, the drive structure includes a power unit 22 and a drive gear. The power unit 22 is mounted on the main frame 1 and can drive the drive gear to rotate. The drive gear is provided with the first limiting structure 21. The drive gear rotates continuously clockwise or counterclockwise to allow the air outlet assembly to continuously rise and fall. Therefore, when the drive gear rotates in one direction, the reaction force on the drive gear has a component that is not axially related to its rotation axis. This component force can cause the drive gear to deviate or vibrate within the clearance range. Therefore, the limiting cooperation of the second limiting structure 11 with the first limiting structure 21 can suppress the deviation or vibration of the drive gear, thereby ensuring the reliable rising and falling of the air outlet assembly.

[0036] The power unit 22 can be a stepper motor.

[0037] In one embodiment, the drive gear includes a hub and meshing teeth 23. Along the axial direction of the hub, the hub includes a meshing section 24 and a limiting section 25. The meshing teeth 23 are disposed on the meshing section 24, and the limiting section 25 constitutes the first limiting structure 21. The power unit 22 is connected to the meshing section 24. That is, by increasing the size of the hub, the length of the hub is made greater than the length of the meshing teeth 23 to form the limiting section 25. This ensures the reliability of the meshing teeth 23 and the gear while facilitating the limiting of the limiting section 25 by the second limiting structure 11.

[0038] Optionally, a limiting ring is provided on the main frame 1, the limiting ring forming the second limiting structure 11, the limiting segment 25 is located inside the limiting ring, and the limiting segment 25 and the limiting ring are in clearance fit, there is a certain gap between the outer wall of the limiting segment 25 and the inner wall of the limiting ring, this gap is much smaller than the fit gap of the meshing tooth 23 and its meshing structure, so as to minimize the offset or vibration of the drive gear, thereby ensuring the reliable lifting and lowering of the air outlet assembly.

[0039] Alternatively, the limiting segment 25 is sleeved on the limiting ring, and the limiting segment 25 and the limiting ring are in clearance fit. There is a certain gap between the outer wall of the limiting segment 25 and the inner wall of the limiting ring. This gap is much smaller than the fit gap between the meshing tooth 23 and its meshing structure. Therefore, the offset or vibration of the drive gear can be minimized, thereby ensuring the reliable lifting and lowering of the air outlet assembly.

[0040] The lifting mechanism also includes a rack 27, which is mounted on the air outlet assembly and meshes with the drive gear. A third limiting structure 12 is provided on the main frame 1, located on the side of the rack 27 away from the drive gear, and engages with the rack 27 for limiting. The meshing teeth 23 mesh with the rack 27. When the meshing teeth 23 rotate, the rack 27 is forced to move, thus moving the air outlet assembly and achieving the lifting and lowering of the air outlet assembly.

[0041] To ensure that the rack 27 moves in a predetermined direction, a guide groove is provided on the rack 27, and a guide wheel is provided on the main frame 1. The guide wheel is rotatably disposed in the guide groove, and the guide wheel constitutes the third limiting structure 12. The rack 27 is limited at least at two points by the third limiting structure 12 and the drive gear, thereby ensuring the reliability of the movement direction of the rack 27.

[0042] In another implementation, the difference from the previous implementation lies only in that the lifting mechanism includes a housing 26, which is disposed on the main frame 1. The driving structure is disposed within the housing 26, and a second limiting structure 11 is provided on the housing. The first limiting structure 21 and the second limiting structure 11 cooperate in a limiting manner. By using the limiting structure to limit the driving structure, when the driving structure experiences a reaction force during the lifting and lowering of the air outlet assembly, causing displacement or vibration, the limiting structure will block the movement and stop the shift, ensuring the reliability of the driving structure's position and the smoothness of its driving of the air outlet assembly, thereby ensuring the reliable lifting and lowering of the air outlet assembly. The housing 26 is used to make the lifting mechanism a whole, and the housing 26 is used to limit the drive gear, further improving the reliability of the drive gear's rotation.

[0043] Specifically, the drive structure includes a power unit 22 and a drive gear. The power unit 22 is mounted on the housing 26 and can drive the drive gear to rotate. The drive gear is provided with the first limiting structure 21. The drive gear rotates continuously clockwise or counterclockwise to allow the air outlet assembly to continuously rise and fall. Therefore, when the drive gear rotates in one direction, the reaction force on the drive gear has a component that is not axial in the direction of its rotation axis. This component force will cause the drive gear to deviate or vibrate within the clearance range. Therefore, the limiting cooperation of the second limiting structure 11 with the first limiting structure 21 can suppress the deviation or vibration of the drive gear, thereby ensuring the reliable rising and falling of the air outlet assembly.

[0044] A limiting ring is provided on the housing 26, which constitutes the second limiting structure 11. The limiting segment 25 is located inside the limiting ring, and the limiting segment 25 is in clearance fit with the limiting ring. There is a certain gap between the outer wall of the limiting segment 25 and the inner wall of the limiting ring. This gap is much smaller than the fit gap of the meshing tooth 23 and its meshing structure. Therefore, the offset or vibration of the drive gear can be reduced as much as possible, thereby ensuring the reliable lifting and lowering of the air outlet assembly.

[0045] Alternatively, the limiting segment 25 is sleeved on the limiting ring, and the limiting segment 25 and the limiting ring are in clearance fit. There is a certain gap between the outer wall of the limiting segment 25 and the inner wall of the limiting ring. This gap is much smaller than the fit gap between the meshing tooth 23 and its meshing structure. Therefore, the offset or vibration of the drive gear can be minimized, thereby ensuring the reliable lifting and lowering of the air outlet assembly.

[0046] The lifting mechanism also includes a rack 27, which is disposed on the air outlet assembly and meshes with the drive gear. A third limiting structure 12 is provided on the housing 26, located on the side of the rack 27 away from the drive gear, and the third limiting structure 12 engages with the rack 27. The meshing teeth 23 mesh with the rack 27. When the meshing teeth 23 rotate, the rack 27 is forced to move, thus moving the air outlet assembly and achieving the lifting and lowering of the air outlet assembly.

[0047] When the lifting mechanism moves the air outlet assembly, not only will the drive gear be subjected to a reaction force and cause it to deviate or vibrate, but the drive gear will also transmit this reaction force to the connection position between the lifting mechanism and the main frame 1. In the prior art, two screws are generally used to lock the lifting mechanism to the main frame 1. When the reaction force is transmitted to the lifting mechanism, the line connecting the two screws forms the swing axis of the lifting mechanism, causing the lifting mechanism to still deviate or vibrate. Therefore, the lifting mechanism is provided with at least three first locking structures 28, and the main frame 1 is provided with a second locking structure 13. The first locking structure 28 and the second locking structure 13 are matched one-to-one.

[0048] Specifically, the first locking structure 28 includes at least two first screw holes and at least one positioning element, and the second locking structure 13 includes a second screw hole and a positioning groove. The first screw holes correspond one-to-one with the second screw holes, and the positioning element corresponds one-to-one with the positioning groove. That is, screws and positioning elements are used to fix the lifting mechanism to the main frame 1. The threaded engagement of the screws can fasten the lifting mechanism, while the positioning element can limit the relative displacement between the lifting mechanism and the main frame 1, thereby ensuring the reliable fixation of the lifting mechanism.

[0049] To prevent the lifting mechanism from rotating or displacing under the reaction force, there is a height difference between the first screw hole and the positioning member. This height difference ensures that the fixing point of the lifting mechanism and the main frame 1 are not on the same horizontal plane, thus limiting the possibility of swaying and ensuring reliable fixation. Preferably, all the first locking structures 28 are polygonal in shape. The polygonal structure overcomes the sway axis formed by the line connecting two points, further ensuring the stability of the lifting mechanism. For example, when there are three first locking structures 28, they are arranged in a triangle, which can prevent the lifting mechanism from shifting or shaking. When there are four first locking structures 28, they are arranged in a quadrilateral, which also prevents the lifting mechanism from shifting or shaking, ensuring reliable lifting of the air outlet assembly.

[0050] As shown in the figure, the lifting mechanism has two mounting holes for mounting screws and a locking element. The main frame 1 has mounting holes that mate with the two mounting holes and a locking hole that mates with the locking element. The two mounting holes and the locking element are arranged in a triangle on the lifting mechanism to ensure the reliable fixation of the lifting mechanism. The second limiting structure 11 and the third limiting structure 12 are both provided on the housing 26.

[0051] The air outlet assembly includes an air outlet frame, which forms an air outlet between itself and the main frame 1. The air outlet frame can be raised and lowered independently. In other embodiments not shown, the air outlet assembly includes an air outlet frame and a return air panel, which forms an air outlet between itself and the main frame 1. The return air panel is provided with a return air outlet, and the air outlet frame and the return air panel are connected and can be raised and lowered together.

[0052] The embodiments described above are merely illustrative of several implementations of the present invention, and while the descriptions are specific and detailed, they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these modifications and improvements all fall within the scope of protection of the present invention. Therefore, the scope of protection of this patent should be determined by the appended claims.

Claims

1. A ceiling winch, characterized in that: include: Main framework (1); An air outlet assembly is connected to the main frame (1) in a lifting and lowering manner via a lifting mechanism; The lifting mechanism includes a drive structure, which is disposed on the main frame (1) and has a first limiting structure (21) and a second limiting structure (11) on the main frame (1). The first limiting structure (21) and the second limiting structure (11) are mutually limiting. Alternatively, the lifting mechanism includes a housing (26), the housing (26) is disposed on the main frame (1), the driving structure is disposed inside the housing (26), and a second limiting structure (11) is disposed on the housing, the first limiting structure (21) and the second limiting structure (11) are mutually limiting; The driving structure includes a power unit (22) and a driving gear. The power unit (22) is disposed on the main frame (1) or the housing (26), and the power unit (22) can drive the driving gear to rotate. The driving gear is provided with the first limiting structure (21). The drive gear includes a hub and meshing teeth (23). Along the axial direction of the hub, the hub includes a meshing section (24) and a limiting section (25). The meshing teeth (23) are disposed on the meshing section (24). The limiting section (25) constitutes the first limiting structure (21). The power unit (22) is connected to the meshing section (24). A limiting ring is provided on the main frame (1) or the shell (26), the limiting ring constitutes the second limiting structure (11), the limiting segment (25) is located inside the limiting ring, and the limiting segment (25) is in clearance fit with the limiting ring; or, the limiting segment (25) is sleeved on the limiting ring, and the limiting segment (25) is in clearance fit with the limiting ring.

2. The well machine according to claim 1, characterized in that: The lifting mechanism also includes a rack (27), which is disposed on the air outlet assembly and meshes with the drive gear. A third limiting structure (12) is provided on the main frame (1) or the housing (26). The third limiting structure (12) is located on the side of the rack (27) away from the drive gear and is limited to the rack (27).

3. The well machine according to claim 2, characterized in that: The rack (27) is provided with a guide groove, and the main frame (1) is provided with a guide wheel. The guide wheel is rotatably disposed in the guide groove, and the guide wheel constitutes the third limiting structure (12).

4. The well machine according to claim 1, characterized in that: The lifting mechanism is provided with at least three first locking structures (28), and the main frame (1) is provided with a second locking structure (13). The first locking structure (28) and the second locking structure (13) are matched one-to-one.

5. The well machine according to claim 4, characterized in that: The first locking structure (28) includes at least two first screw holes and at least one positioning element, and the second locking structure (13) includes a second screw hole and a positioning groove. The first screw hole corresponds to the second screw hole, and the positioning element corresponds to the positioning groove.

6. The well machine according to claim 5, characterized in that: There is a height difference between the first screw hole and the positioning element.

7. The well machine according to claim 6, characterized in that: All of the first locking structures (28) are distributed in a polygonal shape.

8. The well machine according to claim 1, characterized in that: The air outlet assembly includes an air outlet frame, which forms an air outlet between the air outlet frame and the main frame (1), and the air outlet frame can be raised and lowered independently.

9. The well machine according to claim 1, characterized in that: The air outlet assembly includes an air outlet frame and a return air panel. An air outlet is formed between the air outlet frame and the main frame (1). The return air panel is provided with a return air outlet. The air outlet frame and the return air panel are connected and rise and fall together.

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