Ceiling fan

Abstract

A ceiling fan, comprising a blade assembly, the blade assembly including a blade component and a motor component for driving the blade component to rotate, and including a housing and a cover plate; the blade assembly is connected to one end of the housing, a cavity is formed inside the housing, an opening communicating with the cavity is provided at the other end of the housing, a battery is arranged inside the cavity, and the battery is electrically connected to the motor component; the cover plate is arranged at the opening, the cover plate has an inner side wall facing the blade assembly and an outer side wall away from the blade assembly, and a hanging ring is arranged on the outer side wall. By arranging a hanging ring on the outer side wall of the cover plate, when it is necessary to install the ceiling fan above the head, the hanging ring can be hung on components such as ropes for installation.

Description

Technical Field

[0001] The present invention relates to the field of fans, and more particularly, to a portable ceiling fan. Background Art

[0002] Due to the limitations of installation space and power supply, customers sometimes need portable ceiling fans. Many current portable fans lack a mounting structure for mounting on the ceiling. At the same time, structures such as batteries inside the portable fan sometimes shake, and the switch buttons of some portable fans also malfunction. Summary of the Invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. For this purpose, the present invention provides a ceiling fan.

[0004] A ceiling fan according to an embodiment of the first aspect of the present invention includes a fan blade assembly. The fan blade assembly includes a blade assembly and a motor assembly for driving the blade assembly to rotate, and includes a housing and a cover plate. The fan blade assembly is connected to one end of the housing. A cavity is formed inside the housing, and an opening communicating with the cavity is provided at the other end of the housing. The cover plate is disposed at the opening. The cover plate has an inner sidewall facing the fan blade assembly and an outer sidewall away from the fan blade assembly, and a hanging ring is provided on the outer sidewall.

[0005] The axial flow impeller according to the embodiment of the first aspect of the present invention has at least the following beneficial effects: By providing a hanging ring on the outer sidewall of the cover plate, when it is necessary to install the ceiling fan on the ceiling, the hanging ring can be suspended on components such as ropes for installation.

[0006] According to some embodiments of the present invention, a battery is disposed in the cavity, and the battery is electrically connected to the motor assembly.

[0007] According to some embodiments of the present invention, the housing includes a first surface facing the fan blade assembly, and the blade assembly includes a second surface facing the housing. An axial hole and a top shaft are further provided. The axial hole is formed in one of the housing and the fan blade assembly, and the top shaft is provided in the other of the housing and the fan blade assembly. An abutting portion abutting against the top shaft is provided in the axial hole. When the top shaft abuts against the abutting portion, there is a gap between the first surface and the second surface.

[0008] According to some embodiments of the present invention, the axial hole is a blind hole, and the axial hole includes an axial hole bottom wall, and the abutting portion is the axial hole bottom wall.

[0009] According to some embodiments of the present invention, the rotation axis of the fan blade assembly coincides with the axis of the axial hole.

[0010] According to some embodiments of the present invention, the blade assembly includes a hub and blades. The blades are disposed on the outer periphery of the hub. The hub is provided with a first receiving cavity, and the motor assembly is disposed in the first receiving cavity.

[0011] According to some embodiments of the present invention, the shaft hole is formed in the fan blade assembly, and the top shaft is disposed on the housing, and the top shaft is integrally formed with the housing.

[0012] According to some embodiments of the present invention, a first support rib is disposed in the cavity. The bottom of the battery is placed on the first support rib. At least two limit posts are further disposed in the cavity. At least two of the limit posts respectively abut against a set of opposite sides of the battery. A battery limit rib that abuts against another set of opposite sides of the battery protrudes from the inner peripheral wall of the cavity. A first threaded hole is formed in the limit post. A first through hole corresponding to the first threaded hole is provided on the cover plate. A first threaded member is further provided. The first threaded member passes through the first through hole and is threadedly connected to the first threaded hole to fix the cover plate and the housing. A clamping rib that is clamped with the top of the battery is further disposed on the inner side wall of the cover plate.

[0013] According to some embodiments of the present invention, a circuit board assembly electrically connected to the motor assembly and a limiting structure for limiting the circuit board assembly are further disposed in the cavity. The circuit board assembly includes a body. The body includes a first side, a second side, a third side, and a fourth side. The first side and the third side are opposite to each other. The second side and the fourth side are opposite to each other. The limiting structure includes a second support rib. The body is placed on the second support rib. The limiting structure further includes a set of first limiting ribs that respectively abut against the first side and the third side. The limiting structure further includes a second limiting rib and a third limiting rib. The second limiting rib abuts against the second side. The third limiting rib abuts against the fourth side. The cover plate abuts against the top of the circuit board assembly. A set of fourth limiting ribs that respectively abut against the first side and the third side are further provided on the cover plate. A fifth limiting rib that abuts against the second side and a sixth limiting rib that abuts against the fourth side are further provided on the cover plate. The cover plate further includes a reinforcing rib. The reinforcing rib and the fifth limiting rib form a T shape.

[0014] According to some embodiments of the present invention, there are two second support ribs, the bottom of the body is symmetrically supported on the two second support ribs, and the two second limiting ribs are respectively connected to the two second support ribs. The second limiting rib is also connected to the inner peripheral wall of the cavity. There are two third limiting ribs, and the two third limiting ribs are respectively connected to a group of the first limiting ribs. Each third limiting rib and one of the first limiting ribs form an L shape in combination, and the two third limiting ribs are respectively connected to the two second support ribs. The fourth limiting rib and the sixth limiting rib are connected to form an L shape in combination.

[0015] According to some embodiments of the present invention, a button switch is provided on the body, the housing is further provided with an installation through hole communicating with the cavity, and a pressing part is arranged in the installation through hole. The pressing part abuts against the button switch.

[0016] According to some embodiments of the present invention, an indicator light is further provided on the body, and the housing is provided with an observation hole corresponding to the indicator light and communicating with the cavity.

[0017] According to some embodiments of the present invention, a signal receiver and a charging socket are further provided on the body. The cover plate is provided with a second through hole corresponding to the signal receiver and a third through hole corresponding to the charging socket. The signal receiver passes through the second through hole and extends out of the outer side wall of the cover plate. The charging socket abuts against the inner side wall. The charging socket includes a fifth side, a sixth side, a seventh side, and an eighth side. At least a part of the fifth side of the charging socket is connected to the second side of the body. The seventh side is opposite to the fifth side, and the sixth side is opposite to the eighth side. The cover plate is further provided with a seventh limiting rib. The seventh limiting rib includes a first part, a second part, and a third part connected in sequence. The first part is arranged to abut against the sixth side, the second part is arranged to abut against the seventh side, and the third part is arranged to abut against the eighth side.

[0018] According to some embodiments of the present invention, a fourth through hole penetrating the housing is further opened at one end of the housing. The circuit board assembly is connected with a connecting wire, and the connecting wire passes through the fourth through hole and is electrically connected to the motor assembly.

[0019] According to some embodiments of the present invention, the first support rib includes at least one circular ring portion, the circular ring portion encloses a second accommodation cavity, the second accommodation cavity extends along the axial direction of the circular ring portion, and a fifth through hole penetrating the housing is further provided at the center of the second accommodation cavity. The motor assembly includes a connecting plate, and a second threaded hole corresponding to the fifth through hole is provided on the connecting plate. A second threaded member passes through the fifth through hole and is threadedly connected to the second threaded hole.

[0020] According to some embodiments of the present invention, a groove is recessed in the outer side wall, the first through hole is provided in the groove, and a sticker covering the first through hole is further provided at the groove.

[0021] According to some embodiments of the present invention, a buckle is detachably connected to the hanging ring.

[0022] The additional aspects and advantages of the present invention will be partially given in the following description, partially become apparent from the following description, or be understood through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and / or additional aspects and advantages of the present invention will become apparent and be readily understood from the description of the embodiments in conjunction with the following drawings, where:

[0024] Figure 1 is a schematic structural diagram of a ceiling fan of the present invention;

[0025] Figure 2 is Figure 1 an enlarged view of part A in

[0026] Figure 3 a schematic structural diagram of a blade assembly of the present invention;

[0027] Figure 4 is a schematic structural diagram of a blade assembly of the present invention;

[0028] Figure 5 is a schematic structural diagram of a housing of the present invention;

[0029] Figure 6 is a schematic structural diagram of the housing of the present invention from another perspective;

[0030] Figure 7 is Figure 6 an enlarged view of part B in

[0031] Figure 8 is a schematic structural diagram of a cover plate (inner side wall) of the present invention;

[0032] Figure 9 is Figure 8 an enlarged view of part C in

[0033] Figure 10 It is a schematic structural diagram of the circuit board assembly and the pressing part of the present invention;

[0034] Figure 11 is Figure 10 an enlarged view of part D in

[0035] Figure 12 It is a schematic view of the ceiling fan of the present invention cut along a certain cross-section parallel to the inner side wall;

[0036] Figure 13 is Figure 12 an enlarged view of part E in

[0037] Figure 14 It is a schematic structural diagram of the cover plate (outer side wall) of the present invention;

[0038] Figure 15 It is a schematic diagram of the present invention in a state where the sticker is peeled off.

[0039] Reference numerals:

[0040] Ceiling fan 100;

[0041] Blade assembly 200, second surface 201, shaft hole 202, hub 203, blade 204, first accommodation cavity 205, blade assembly 206;

[0042] Motor assembly 300, connecting plate 301, second threaded hole 302;

[0043] Housing 400, cavity 401, inner peripheral wall 402, opening 403, battery 404, first surface 405, top shaft 406, first support rib 407, second support rib 408, limit post 409, first threaded hole 410, clamping rib 411, first limit rib 412, second limit rib 413, third limit rib 414, fourth limit rib 415, fifth limit rib 416, sixth limit rib 417, seventh limit rib 418, first part 419, second part 420, third part 421, installation through hole 422, pressing part 423, observation hole 424, first through hole 425, second through hole 426, third through hole 427, fourth through hole 428, fifth through hole 429, circular ring part 432, second accommodation cavity 433, groove 434, sticker 435;

[0044] Body 501, charging socket 502, signal receiver 503, first side 504, second side 505, third side 506, fourth side 507, fifth side 508, sixth side 509, seventh side 510, eighth side 511, button switch 512;

[0045] Cover plate 600, inner side wall 601, outer side wall 602;

[0046] The suspension ring 700. Specific implementation manners

[0047] The embodiments of the present invention will be described in detail below. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary and are only used to explain the present invention and should not be construed as limiting the present invention.

[0048] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by terms such as up, down, inside, outside, etc. is based on the orientation or positional relationship shown in the drawings, and is 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 thus should not be construed as limiting the present invention.

[0049] In the description of the present invention, the first, second, third, fourth, fifth, sixth, seventh, and eighth are only used for the purpose of distinguishing technical features, and should not be construed as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or the sequence relationship of the indicated technical features.

[0050] In the description of the present invention, unless otherwise clearly defined, words such as setting, installing, connecting, assembling, and fitting should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in the present invention in combination with the specific content of the technical solution.

[0051] See Figure 1 、 Figure 8 、 Figure 14, the ceiling fan 100 according to an embodiment of the first aspect of the present invention. It includes a blade assembly 200, and the blade assembly 200 includes a blade component 206 and a motor assembly 300 for driving the blade component 206 to rotate. The ceiling fan 100 further includes a housing 400 and a cover plate 600. The blade assembly 200 is connected to one end of the housing 400. A cavity 401 is formed inside the housing 400. An opening 403 communicating with the cavity 401 is provided at the other end of the housing 400. A battery 404 is arranged inside the cavity 401, and the battery 404 is electrically connected to the motor assembly 300. The battery 404 can be a rechargeable battery 404 or a non-rechargeable battery 404. In the following description, a rechargeable battery 404 is used to provide electrical energy. The cover plate 600 is arranged at the opening 403. The cover plate 600 has an inner side wall 601 facing the blade assembly 200 and an outer side wall 602 away from the blade assembly 200. A hanging ring 700 is arranged on the outer side wall 602. By arranging the hanging ring 700 on the outer side wall 602 of the cover plate 600, when it is necessary to install the ceiling fan 100 above the head, the hanging ring 700 can be hung on components such as ropes for installation, or a buckle can be installed on the hanging ring 700 and then hung on components such as ropes for installation. It can be expected that the ceiling fan 100 of the present invention can also be a plug-in ceiling fan, that is, the battery 404 may not be placed inside the housing 400, or even if the battery 404 is placed, it is still powered by the mains electricity.

[0052] See Figures 1 to 5 , in some embodiments, the housing 400 includes a first surface 405 facing the blade assembly 200. The blade component 206 includes a second surface 201 facing the housing 400. An axial hole 202 and a top shaft 406 are further provided. The axial hole 202 is formed in one of the housing 400 and the blade assembly 200, and the top shaft 406 is arranged in the other of the housing 400 and the blade assembly 200. An abutting portion for abutting against the top shaft 406 is arranged inside the axial hole 202. When the top shaft 406 abuts against the abutting portion, there is a gap between the first surface 405 and the second surface 201. By the abutting of the top shaft 406, a certain gap can be maintained between the housing 400 and the blade assembly 200 to avoid interference.

[0053] See Figures 3 to 5 , in some embodiments, the axial hole 202 is a blind hole, and the axial hole 202 includes a bottom wall of the axial hole 202, and the abutting portion is the bottom wall of the axial hole 202. In some embodiments, the rotation axis of the blade assembly 200 coincides with the axis of the axial hole 202. In some embodiments, the axial hole 202 is formed in the blade assembly 200, and the top shaft 406 is arranged in the housing 400. The top shaft 406 is integrally formed with the housing 400, which is convenient for manufacturing and saves production costs.

[0054] See Figure 4, in some embodiments, the blade assembly 200 includes a hub 203 and blades 204. The blades 204 are disposed on the outer periphery of the hub 203. The hub 203 is provided with a first receiving cavity 205, and the motor assembly 300 is disposed in the first receiving cavity 205. It can be understood that the motor assembly 300 is snap-fitted in the first receiving cavity 205, that is, the motor assembly 300 is fixed in a receiving cavity.

[0055] See Figure 6 , Figure 12 , in some embodiments, a first support rib 407 is disposed in the cavity 401. The bottom of the battery 404 is placed on the first support rib 407. At least two limiting posts 409 are further disposed in the cavity 401. The at least two limiting posts 409 respectively abut against a set of opposite sides of the battery 404. For example, four limiting posts 409 may be provided. In some embodiments, the limiting posts 409 abut against the battery 404 through ribs provided on their sides. A first threaded hole 410 is formed in the limiting post 409. A first through hole 425 corresponding to the first threaded hole 410 is provided on the cover plate 600. A first threaded member is further provided. The first threaded member passes through the first through hole 425 and is threadedly connected to the first threaded hole 410 to fix the cover plate 600 to the housing 400. A clamping rib 411 that is snap-fitted with the top of the battery 404 is further disposed on the inner side wall 601 of the cover plate 600. The battery 404 can be completely fixed by the first support rib 407, the limiting posts 409, and the clamping rib 411. In some embodiments, a battery limiting rib (not shown) that abuts against another set of opposite sides of the battery 404 further protrudes from the inner peripheral wall 402 of the cavity 401.

[0056] See Figure 6 , Figure 10, in some embodiments, a circuit board assembly electrically connected to the motor assembly 300 and a limiting structure for limiting the circuit board assembly are further provided in the cavity 401. The circuit board assembly includes a body 501, and the body 501 includes a first side 504, a second side 505, a third side 506, and a fourth side 507. The first side 504 is opposite to the third side 506, and the second side 505 is opposite to the fourth side 507. The limiting structure includes a second support rib 408, and the body 501 is placed on the second support rib 408. The limiting structure further includes a set of first limiting ribs 412 respectively abutting against the first side 504 and the third side 506. The limiting structure further includes a second limiting rib 413 and a third limiting rib 414. The second limiting rib 413 abuts against the second side 505, and the third limiting rib 414 abuts against the fourth side 507. The cover plate 600 abuts against the top of the circuit board assembly. A set of fourth limiting ribs 415 respectively abutting against the first side 504 and the third side 506 are further provided on the cover plate 600. A fifth limiting rib 416 abutting against the second side 505 and a sixth limiting rib 417 abutting against the fourth side 507 are further provided on the cover plate 600. The first to sixth limiting ribs 417 can fix the circuit board assembly. Among them, the fifth limiting rib 416 can prevent the circuit board assembly from shifting towards the inner peripheral wall 402 of the cavity 401, and the sixth limiting rib 417 can prevent the circuit board assembly from shifting away from the inner peripheral wall 402 of the cavity 401, preventing the circuit board assembly from shifting when the pressing portion 423 is pressed. In some embodiments, the cover plate 600 further includes a reinforcing rib, and the reinforcing rib and the fifth limiting rib 416 form a T shape.

[0057] See Figures 6 to 7 , in some embodiments, there are two second support ribs 408. The bottom of the body 501 is symmetrically supported on the two second support ribs 408, and the two second limiting ribs 413 are respectively connected to the two second support ribs 408. The second limiting rib 413 is further connected to the inner peripheral wall 402 of the cavity 401. There are two third limiting ribs 414, and the two third limiting ribs 414 are respectively connected to a set of first limiting ribs 412. Each third limiting rib 414 and one of the first limiting ribs 412 form an L shape, and the two third limiting ribs 414 are respectively connected to the two second support ribs 408. The fourth limiting rib 415 and the sixth limiting rib 417 are connected to form an L shape.

[0058] See Figure 1 , Figure 2 , Figure 5, in some embodiments, the circuit board assembly includes a push button switch 512. The housing 400 is further provided with a mounting through hole 422 communicating with the cavity 401. A pressing portion 423 is disposed in the mounting through hole 422, and the pressing portion 423 abuts against the push button switch 512. By providing the pressing portion 423, the push button switch 512 can be pressed to control the start and stop of the fan blades. It can be understood that the push button switch 512 can be a spring switch or other types of push button switches.

[0059] See Figures 1 to 2 , in some embodiments, the circuit board further includes an indicator light (not shown in the figure). The housing 400 is provided with an observation hole 424 corresponding to the indicator light and communicating with the cavity 401. Different colors of the indicator light are used to indicate whether the battery 404 is fully charged. For example, when the charging is complete, the indicator light shows green, and when the charging is not complete, the indicator light shows red. The user can observe the color of the indicator light through the observation hole 424.

[0060] See Figures 6 to 10 , Figure 14 , in some embodiments, the circuit board assembly further includes a signal receiver 503 and a charging socket 502. The cover plate 600 is provided with a second through hole 426 corresponding to the signal receiver 503 and a third through hole 427 corresponding to the charging socket 502. The signal receiver 503 passes through the second through hole 426 and extends out of the outer side wall 602 of the cover plate 600. The charging socket 502 abuts against the inner side wall 601. The charging socket 502 includes a fifth side surface 508, a sixth side surface 509, a seventh side surface 510, and an eighth side surface 511. The fifth side surface 508 of the charging socket 502 is at least partially connected to the second side surface 505 of the body 501. The seventh side surface 510 is opposite to the fifth side surface 508, and the sixth side surface 509 is opposite to the eighth side surface 511. The cover plate 600 is further provided with a seventh limiting rib 418. The seventh limiting rib 418 includes a first portion 419, a second portion 420, and a third portion 421 connected in sequence. The first portion 419 is configured to abut against the sixth side surface 509, the second portion 420 is configured to abut against the seventh side surface 510, and the third portion 421 is configured to abut against the eighth side surface 511. The charging socket 502 can be a USB socket, a type C socket, a Micro USB socket, or any suitable socket. The signal receiver 503 can be any suitable receiver such as an infrared receiver. It can be understood that the signal receiver 503 can also have the function of signal transmission. The signal receiver 503 can receive signals to control whether the motor assembly 300 works and how it works, so as to control the start and stop and speed of the ceiling fan 100. It can also receive a timing signal to perform timing control on the ceiling fan. By providing the charging socket 502, the rechargeable battery 404 can be charged, and the setting of the seventh limiting rib 418 can prevent the charging socket 502 from shifting and deforming under the action of external force during charging.

[0061] See Figure 5 , in some embodiments, a fourth through hole 428 penetrating the housing 400 is further provided at one end of the housing 400. The circuit board assembly is connected with a connecting wire, and the connecting wire passes through the fourth through hole 428 and is electrically connected to the motor assembly 300. By providing the fourth through hole 428, the electrical connection between the circuit board assembly and the motor assembly 300 can be realized.

[0062] See Figure 6 , in some embodiments, the first support rib 407 includes at least one circular ring portion 432. The circular ring portion 432 encloses a second accommodation cavity 433. The second accommodation cavity 433 extends along the axial direction of the circular ring portion 432. A fifth through hole 429 penetrating the housing 400 is further provided at the center of the second accommodation cavity 433. The motor assembly 300 includes a connecting plate 301, and a second threaded hole 302 corresponding to the fifth through hole 429 is provided on the connecting plate 301. A second threaded member passes through the fifth through hole 429 and is threadedly connected to the second threaded hole 302. The motor assembly 300 can be detachably and relatively fixed to the housing 400 by the second threaded member.

[0063] See Figure 15 , in some embodiments, a groove 434 is recessed in the outer side wall 602, the first through hole 425 is provided in the groove 434, and a sticker 435 covering the first through hole 425 is further provided at the groove 434. It can be understood that the first through hole 425 is a stepped hole, and the first threaded member is a component such as a screw. When installing the first threaded member, since the first through hole 425 is a stepped hole, the first threaded member is completely located in the first through hole 425. By providing the groove 434 and attaching the sticker 435 to the groove 434, the first through hole 425 can be covered, making it more beautiful.

[0064] In some embodiments, a buckle is detachably connected to the hanging ring 700. Through the buckle, it can be conveniently hung on structures such as ropes, so that the ceiling fan 100 can be conveniently fixed at positions such as above the head, and it is not necessary to pass components such as ropes through the hanging ring 700. The buckle can be directly buckled on components such as ropes.

[0065] In some embodiments, the hanging ring 700 can be made of metal materials such as stainless steel. In other embodiments, the hanging ring 700 can also be made of ropes, cloth, leather or other polymer materials. Similarly, the buckle can also be made of metal or other suitable materials.

[0066] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Various changes can be made without departing from the spirit of the present invention within the knowledge scope of those of ordinary skill in the art.

Claims

1. A ceiling fan, comprising a blade assembly, the blade assembly including a blade component and a motor component for driving the blade component to rotate, characterized in that, Comprising: A housing, the fan blade assembly is connected to one end of the housing, a cavity is formed inside the housing, and an opening communicating with the cavity is provided at the other end of the housing; A cover plate, the cover plate is arranged at the opening, the cover plate has an inner side wall facing the fan blade assembly and an outer side wall away from the fan blade assembly, and a lifting ring is arranged on the outer side wall; A battery is arranged in the cavity, and the battery is electrically connected to the motor assembly; A first support rib is arranged in the cavity, the bottom of the battery is placed on the first support rib, at least two limit posts are also arranged in the cavity, at least two of the limit posts respectively abut against a set of opposite side surfaces of the battery, and battery limit ribs abutting against the other set of opposite side surfaces of the battery protrude from the inner peripheral wall of the cavity. A first threaded hole is provided on the limit post, a first through hole corresponding to the first threaded hole is provided on the cover plate, and a first threaded member is also provided. The first threaded member passes through the first through hole and is threadedly connected to the first threaded hole to fix the cover plate to the housing. A clamping rib that is clamped with the top of the battery is also arranged on the inner side wall of the cover plate; A circuit board assembly electrically connected to the motor assembly and a limiting structure for limiting the circuit board assembly are also arranged in the cavity. The circuit board assembly includes a body, and the body includes a first side surface, a second side surface, a third side surface, and a fourth side surface. The first side surface is opposite to the third side surface, and the second side surface is opposite to the fourth side surface. The limiting structure includes a second support rib, and the body is placed on the second support rib. The limiting structure also includes a set of first limiting ribs respectively abutting against the first side surface and the third side surface. The limiting structure also includes a second limiting rib and a third limiting rib. The second limiting rib abuts against the second side surface, and the third limiting rib abuts against the fourth side surface. The cover plate abuts against the top of the circuit board assembly. A set of fourth limiting ribs respectively abutting against the first side surface and the third side surface are also arranged on the cover plate. A fifth limiting rib abutting against the second side surface and a sixth limiting rib abutting against the fourth side surface are also arranged on the cover plate. The cover plate also includes a reinforcing rib, and the reinforcing rib and the fifth limiting rib form a T shape.

2. The ceiling fan according to claim 1, wherein: The housing includes a first surface facing the fan blade assembly, the blade assembly includes a second surface facing the housing, and a shaft hole and a top shaft are also provided. The shaft hole is formed in one of the housing and the fan blade assembly, and the top shaft is arranged in the other of the housing and the fan blade assembly. An abutting portion abutting against the top shaft is arranged in the shaft hole. When the top shaft abuts against the abutting portion, there is a gap between the first surface and the second surface.

3. The ceiling fan according to claim 2, wherein: The shaft hole is a blind hole, and the abutting portion is the bottom wall of the shaft hole of the shaft hole.

4. The ceiling fan according to claim 2, wherein: The rotation axis of the fan blade assembly coincides with the axis of the shaft hole.

5. The ceiling fan according to claim 1, wherein: The blade assembly includes a hub and blades, the blades are arranged on the outer periphery of the hub, and a first accommodation cavity is provided in the hub, and the motor assembly is arranged in the first accommodation cavity.

6. The ceiling fan according to claim 2, wherein: The shaft hole is formed in the fan blade assembly, and the top shaft is arranged on the housing, and the top shaft is integrally formed with the housing.

7. The ceiling fan according to claim 1, characterized in that: There are two second support ribs, the bottom of the body is symmetrically supported on the two second support ribs, and the two second limiting ribs are respectively connected to the two second support ribs, and the second limiting rib is also connected to the inner peripheral wall of the cavity. There are two third limiting ribs, and the two third limiting ribs are respectively connected to a group of first limiting ribs. Each third limiting rib and one of the first limiting ribs form an L shape in combination, and the two third limiting ribs are respectively connected to the two second support ribs. The fourth limiting rib and the sixth limiting rib are connected to form an L shape in combination.

8. The ceiling fan according to claim 7, characterized in that: A button switch is arranged on the body, and the housing is also provided with an installation through hole communicating with the cavity. A pressing part is arranged in the installation through hole, and the pressing part abuts against the button switch.

9. The ceiling fan according to claim 1, characterized in that An indicator light is also arranged on the body, and the housing is provided with an observation hole corresponding to the indicator light and communicating with the cavity.

10. The ceiling fan according to claim 1, wherein: A signal receiver and a charging socket are also arranged on the body. The cover plate is provided with a second through hole corresponding to the signal receiver and a third through hole corresponding to the charging socket. The signal receiver passes through the second through hole and extends out of the outer side wall of the cover plate, and the charging socket abuts against the inner side wall. The charging socket includes a fifth side, a sixth side, a seventh side, and an eighth side. At least a part of the fifth side of the charging socket is connected to the second side of the body. The seventh side is opposite to the fifth side, the sixth side is opposite to the eighth side. The cover plate is also provided with a seventh limiting rib, and the seventh limiting rib includes a first part, a second part, and a third part connected in sequence. The first part is arranged to abut against the sixth side, the second part is arranged to abut against the seventh side, and the third part is arranged to abut against the eighth side.

11. The ceiling fan according to claim 1, wherein: One end of the housing is also provided with a fourth through hole penetrating through the housing. The circuit board assembly is connected with a connecting wire, and the connecting wire passes through the fourth through hole and is electrically connected to the motor assembly.

12. The ceiling fan according to claim 1, characterized in that: The first support rib includes at least one circular ring part, and the circular ring part encloses a second accommodation cavity. The second accommodation cavity extends along the axial direction of the circular ring part. A fifth through hole penetrating through the housing is also opened at the center of the second accommodation cavity. The motor assembly includes a connecting plate, and a second threaded hole corresponding to the fifth through hole is opened on the connecting plate. A second threaded member passes through the fifth through hole and is threadedly connected to the second threaded hole.

13. The ceiling fan according to claim 1, characterized in that: The outer side wall is recessed with a groove, the first through hole is opened in the groove, and a sticker covering the first through hole is also arranged at the groove.

14. The ceiling fan according to claim 1, wherein: A buckle is detachably connected to the hanging ring.

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