Fan ceiling lamp

Abstract

The utility model discloses a fan ceiling lamp. The fan ceiling lamp comprises an upper cover, a lower cover, a fan blade assembly and a motor. The upper cover is fixedly installed, the lower cover and the upper cover are fixedly connected, and a rotating gap is formed between the lower cover and the upper cover on the side portion. The fan blade assembly is folded and installed between the upper cover and the lower cover, and the motor is fixedly installed between the upper cover and the lower cover and is in driving fit with the fan blade assembly; the motor is suitable for driving the fan blade assembly to stretch out, unfold and rotate along the rotating gap. The fan has the beneficial effects that the rotating gap exists between the upper cover and the lower cover, the fan blade assembly is arranged between the upper cover and the lower cover, and the fan blade assembly can be unfolded and rotate in the rotating gap. The fan blades are installed in the ceiling lamp, and the fan blades are unfolded and rotate outside the ceiling lamp when the ceiling lamp is used. And when the ceiling lamp does not need to be used, the fan blades can be folded into the ceiling lamp, so that the situation that dust falls fully when the ceiling lamp is not used for a long time is avoided.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of ceiling lamps, in particular to a fan ceiling lamp. BACKGROUND

[0002] The main function of the fan ceiling lamp is lighting and fan, and the lighting and fan functions can be used independently. The fan blades are usually installed on the top of the ceiling lamp and are in an exposed state. The fan function of the ceiling lamp is usually only used in summer, and is not used in other seasons. Long-term exposure causes dust to accumulate on the fan blades. If the fan blades are not cleaned before use in the changing season, the living room or bedroom will be covered with dust when used directly. If the fan blades are cleaned, the process will be very tedious.

[0003] Therefore, there is a need to improve the existing fan ceiling lamp. CONTENT OF THE INVENTION

[0004] The purpose of the present application is to provide a fan ceiling lamp that can solve at least one of the defects in the background art.

[0005] To achieve the above at least one purpose, the technical solution adopted by the present application is: a fan ceiling lamp, comprising an upper cover, a lower cover, a fan blade assembly and a motor; the upper cover is fixedly installed, the lower cover is fixedly connected with the upper cover and a rotating gap is formed between the two at the side; the fan blade assembly is folded and installed between the upper cover and the lower cover, the motor is fixedly installed between the upper cover and the lower cover and is drivingly connected with the fan blade assembly; the motor is adapted to drive the fan blade assembly to extend and unfold along the rotating gap and rotate.

[0006] Preferably, the fan blade assembly comprises a rotating member and a plurality of fan blades; the rotating member is rotatably installed on the lower cover, and a plurality of fan blades are rotatably installed on the side of the rotating member at equal intervals along the circumferential direction of the rotating member; the driving end of the motor is connected with the rotating member, and the rotating member is adapted to rotate under the drive of the motor, thereby driving the fan blades to unfold.

[0007] Preferably, the motor is arranged on the side of the upper cover, and the motor is connected with the rotating member through gear transmission; the fan blades are rotatably installed on the rotating member through elastic members, and the fan blades are adapted to be folded under the elastic force of the elastic members; when the rotating member rotates, the fan blades are adapted to unfold under the centrifugal force greater than the elastic force of the elastic members.

[0008] Preferably, a limiting rod is arranged on the fan blade; a limiting slot is arranged on the rotating member; the limiting rod is adapted to extend into the limiting slot, and the fan blade is adapted to slide along the limiting slot through the limiting rod, thereby limiting the angle of the fan blade unfolding.

[0009] Preferably, the fan blade assembly comprises a rotating member, a plurality of fan blades, and a rotating shaft member; the plurality of fan blades are equidistantly arranged along the circumferential direction of the rotating member and are rotatably installed on the side of the rotating member; the rotating member is dampingly rotatably installed on the lower cover; the rotating shaft member is rotatably installed on the middle part of the rotating member, and the rotating shaft member and the rotating member are connected through a driving structure; the fan blade is rotatably installed on the side of the rotating member; the end of the fan blade is hingedly connected to the rotating shaft member through a hinge rod; the motor is arranged on the side of the upper cover, and the motor is in gear transmission cooperation with the rotating shaft member through a driving end; the rotating shaft member is adapted to rotate a limited angle under the driving of the motor to drive the fan blade to unfold; and the rotating member is adapted to synchronously rotate with the rotating shaft member after the rotating shaft member rotates the limited angle through the driving structure.

[0010] Preferably, the driving structure comprises a first driving member arranged on the side of the rotating shaft member and a second driving member arranged on the rotating member; the rotating shaft member, after rotating to a limited angle, makes the first driving member and the second driving member abut and drives the second driving member to synchronously rotate the rotating member with the rotating shaft member.

[0011] Preferably, permanent magnets are arranged on the lower cover and the rotating member; and the rotating member and the lower cover are adapted to form a damping connection through the magnetic attraction force between the permanent magnets.

[0012] Preferably, a permanent magnet is arranged on the lower cover; an electromagnet is arranged on the rotating member; and the rotating member and the lower cover are adapted to form a damping connection through the magnetic attraction force between the permanent magnet and the electromagnet.

[0013] Preferably, the fan blade assembly further comprises a ring-shaped closing member; the closing member is elastically and slidably installed on the side of the rotating member, and the closing member is adapted to close the rotating gap; a recess is arranged on the closing member, and the fan blade is adapted to be located in the recess when unfolded.

[0014] Compared with the prior art, the application has the following beneficial effects:

[0015] Compared with the existing fan ceiling lamp, the whole shell of the traditional ceiling lamp is divided into an upper cover and a lower cover, a rotating gap exists between the upper cover and the lower cover, a fan blade assembly is arranged between the upper cover and the lower cover, and the fan blade assembly can be unfolded and rotated from the rotating gap. It can be understood that the fan blades are installed in the interior of the ceiling lamp, and in use, the fan blades are unfolded and rotated outside the ceiling lamp; when not in use, the fan blades can be folded into the interior of the ceiling lamp, thereby avoiding dust accumulation caused by long-term non-use. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a schematic diagram of the overall structure of the utility model.

[0017] Figure 2 It is a schematic diagram of the exploded state of embodiment one of the utility model.

[0018] Figure 3 It is a schematic diagram of the utility model Figure 2 A local enlarged schematic diagram of the utility model.

[0019] Figure 4 It is a schematic diagram of the structure of the closure of the utility model.

[0020] Figure 5 It is a top view schematic diagram of embodiment one of the utility model.

[0021] Figure 6 It is a simplified schematic diagram of the fan blades when folded in embodiment two of the utility model.

[0022] Figure 7 It is a simplified schematic diagram of the fan blades when unfolded in embodiment two of the utility model.

[0023] In the figure: upper cover 1, lower cover 2, fan blade assembly 3, fan blade 31, first connecting part 310, limiting rod 311, elastic part 32, rotating part 33, second connecting part 330, limiting groove 331, connecting groove 332, first gear 333, connecting hole 334, second driving part 335, closure 34, recess 340, rotating shaft part 35, hinged seat 350, hinged rod 351, motor 4, output shaft 40, second gear 401, rotating gap 5, permanent magnet 6, electromagnet 7. DETAILED DESCRIPTION

[0024] In the following, the application will be further described in conjunction with specific embodiments, and it should be noted that the following described embodiments or technical features can be combined to form new embodiments without conflict.

[0025] In the description of the present application, it should be noted that for orientation words, such as the terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0026] It should be noted that the terms "first", "second" and the like in the specification and claims of the present application are used to distinguish similar objects, and do not necessarily have to describe a specific order or sequence.

[0027] The terms "include" and "have" and any variations thereof in the specification and claims of the present application are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0028] One of the preferred embodiments of the present application is shown as Figures 1 to 7 A fan ceiling lamp, comprising an upper cover 1, a lower cover 2, a fan blade assembly 3 and a motor 4. The upper cover 1 is fixedly installed, the lower cover 2 is fixedly connected with the upper cover 1 and a rotating gap 5 is formed between the two at the side. The fan blade assembly 3 is retractedly installed between the upper cover 1 and the lower cover 2, and the motor 4 is fixedly installed between the upper cover 1 and the lower cover 2 and is drivingly matched with the fan blade assembly 3. The motor 4 can drive the fan blade assembly 3 to extend and rotate along the rotating gap 5.

[0029] It should be understood that the main function of the fan ceiling lamp is to illuminate and ventilate, and the fan blades 31 of the normal fan ceiling lamp are installed on the top of the ceiling lamp, which is easy to get dirty after a long time of use, and thus the living room or bedroom is easy to be covered with dust, but the cleaning of the fan blades 31 is relatively troublesome.

[0030] Therefore, the advantages of the present scheme over the traditional scheme are that the cover body of the traditional ceiling lamp is divided into an upper cover 1 and a lower cover 2; there is a rotating gap 5 between the upper cover 1 and the lower cover 2; the fan blade assembly 3 is retractedly arranged between the upper cover 1 and the lower cover 2, and the fan blade assembly 3 can extend and rotate along the rotating gap 5. Such design can make the fan blade assembly 3 retract into the upper cover 1 and the lower cover 2 when it is not needed to be used, so as to avoid dust falling; and when it is needed to be used, it can be extended and rotated through the rotating gap 5.

[0031] It should be understood that there are many ways for the fan blade assembly 3 to extend and rotate along the rotation gap 5, and the specific structure of each way is different. For the convenience of understanding, two embodiments are described below.

[0032] Embodiment one:

[0033] In this embodiment, as shown in Figure 2 and Figure 5 , the fan blade assembly 3 includes a rotating part 33 and a plurality of fan blades 31. The rotating part 33 is rotatably installed on the lower cover 2, and the plurality of fan blades 31 are rotatably installed on the side of the rotating part 33 along the circumferential direction of the rotating part 33. The driving end of the motor 4 is connected with the rotating part 33, and the rotating part 33 can rotate under the drive of the motor 4, thereby driving the fan blades 31 to expand.

[0034] It can be understood that the bottom of the lower cover 2 needs to be connected with the lamp beads of the ceiling lamp, so the lower cover 2 needs to remain stationary when the rotating part 33 rotates, so the rotating part 33 and the lower cover 2 need to be rotatably connected. However, there are many ways to rotatably connect, for example: an annular groove is formed on the inner side of the lower cover 2, and the rotating part 33 is clamped in the annular groove. Because the lower cover 2 and the upper cover 1 are fixedly connected, the rotating part 33 can rotate along the annular groove under the drive of the motor 4.

[0035] It should be noted that the rotatable connection between the rotating part 33 and the lower cover 2 is only illustrative, and the specific connection can be set by the person skilled in the art according to the actual needs.

[0036] In this embodiment, as shown in Figure 2 , the upper cover 1 and the lower cover 2 are fixedly connected, the rotating part 33 is provided with a connecting hole 334, and a connecting rod can be extendedly arranged in the middle of the lower cover 2. The connecting rod can pass through the connecting hole 334 and be fixedly connected with the upper cover 1. It can be understood that the motor 4 needs to drive the rotating part 33 to rotate, but the middle of the rotating part 33 is provided with the connecting hole 334, and the connecting rod is arranged in the connecting hole 334. If the motor 4 is directly connected with the rotating part 33, the motor 4 can only be connected with the side of the rotating part 33. At this time, if the motor 4 drives the rotating part 33, the rotating part 33 will rotate around the axis of the driving end of the motor 4, and cannot rotate around its own axis.

[0037] Therefore, in this embodiment, the motor 4 is arranged on the side of the upper cover 1, and the motor 4 is in gear transmission cooperation with the rotating part 33 through the driving end. Specifically, as shown in Figure 2As shown, a first gear 333 is provided on the rotating component 33, and an output shaft 40 and a second gear 401 are provided on the driving end of the motor 4. One end of the output shaft 40 is connected to the driving end of the motor 4, and the end of the output shaft 40 away from the motor 4 is fixedly connected to the second gear 401. The first gear 333 and the second gear 401 can be meshed. The driving end of the motor 4 drives the second gear 401 to rotate through the output shaft 40, and the second gear 401 drives the first gear 333 to rotate, thereby driving the rotating component 33 to rotate.

[0038] It is understood that the purpose of this embodiment is to allow the fan blades 31 to be positioned between the upper cover 1 and the lower cover 2 when not in use to prevent dust accumulation. Therefore, all the fan blades 31 are rotatably mounted on the rotating member 33 in a retracted state. When the rotating member 33 rotates under the drive of the motor 4, the fan blades 31 need to extend and unfold from the rotation gap 5. Thus, multiple fan blades 31 are rotatably mounted at equal intervals along the circumference of the rotating member 33 and located on the side of the rotating member 33, so that the rotating member 33 can drive the fan blades 31 to rotate when it rotates. At the same time, because the fan blades 31 are rotatably mounted on the side of the rotating member 33, the fan blades 31 can extend and unfold from the rotation gap 5 under the action of centrifugal force.

[0039] Specifically, such as Figure 2 As shown, each fan blade 31 has a first connecting portion 310 at its end, and the rotating member 33 has a second connecting portion 330 corresponding to the position and number of the first connecting portions 310; the first connecting portion 310 can be rotatably connected to the second connecting portion 330. There are various implementation methods for rotatably connecting the two components, the first connecting portion 310 and the second connecting portion 330, and those skilled in the art can choose according to actual needs.

[0040] It is also understandable that the fan blade 31 retracts between the upper cover 1 and the lower cover 2 after the motor 4 stops running. In this embodiment, the fan blade 31 is rotatably mounted on the rotating member 33 via the elastic member 32, and the fan blade 31 can retract under the elastic force of the elastic member 32. Specifically, the elastic member 32 is sleeved on the outside of the first connecting part 310, and the two ends of the elastic member 32 are fixedly connected to the fan blade 31 and the rotating member 33 respectively. When the fan blade 31 rotates under the action of centrifugal force, the elastic member 32 will deform due to the rotation of the fan blade 31. When the motor 4 stops running, the rotating member 33 stops rotating so that the fan blade 31 loses the centrifugal force. At this time, the elastic member 32 will deform to return to its original shape, thereby driving the fan blade 31 to retract between the upper cover 1 and the lower cover 2.

[0041] It should be known that after the elastic member 32 is installed, the fan blade 31 needs to be stretched out and unfolded from the rotation gap 5 under the centrifugal force greater than the elastic force of the elastic member 32 when the fan blade 31 rotates with the rotating member 33. In the embodiment, the elastic member 32 can be a torsion spring or a spring. In the embodiment, the elastic member 32 is preferably a torsion spring.

[0042] In the embodiment, the elastic member 32 can also limit the unfolding angle of the fan blade 31 by the elastic force of the elastic member 32. However, if the elastic member 32 limits the unfolding angle of the fan blade 31 by the elastic force of the elastic member 32 for a long time, the elastic force of the elastic member 32 will be consumed. Therefore, in the embodiment, as shown in Figure 2 and Figure 5 , a limiting rod 311 is arranged on the fan blade 31; a limiting groove 331 is arranged on the rotating member 33. The limiting rod 311 can be inserted into the limiting groove 331, and the fan blade 31 can slide along the limiting groove 331 through the limiting rod 311, thereby limiting the unfolding angle of the fan blade 31.

[0043] It can be understood that because the limiting rod 311 is arranged on the fan blade 31, the limiting rod 311 rotates with the rotation of the fan blade 31, and the limiting rod 311 can slide in the limiting groove 331, so the limiting groove 331 should be coaxially arranged with the first connecting part 310 on the fan blade 31.

[0044] In the embodiment, as shown in Figure 3 and Figure 4 , the fan blade assembly 3 further comprises a closed member 34 in the form of a ring; the closed member 34 is elastically and slidably installed on the side of the rotating member 33, and the closed member 34 can close the rotation gap 5. The closed member 34 is provided with a recess 340, and the fan blade 31 can be located in the recess 340 when unfolded.

[0045] It can be understood that, without the setting of the closing piece 34, the rotating gap 5 will always be in an open state, and the upper cover 1 and the lower cover 2 of the ceiling lamp will also be covered with dust after a long period of use. After the elastic sliding installation of the closing piece 34 on the rotating piece 33, the closing piece 34 can close the rotating gap 5 when the fan blades 31 are in the folded state. When the fan blades 31 are unfolded and extended from the rotating gap 5, the bottom of the fan blades 31 will abut against the closing piece 34, causing the closing piece 34 to move axially downward. However, if the closing piece 34 always abuts against the bottom of the fan blades 31 during the rotation of the fan blades 31, the rotating gap 5 will always be open, and dust will enter between the upper cover 1 and the lower cover 2. Therefore, a plurality of grooves 340 are provided on the closing piece 34, and the number of the grooves 340 corresponds to the number of the fan blades 31. After the fan blades 31 are fully unfolded, the fan blades 31 will be located in the grooves 340, so that the closing piece 34 can rebound under the action of the elastic force to close the rotating gap 5, thereby preventing dust from entering between the upper cover 1 and the lower cover 2.

[0046] It should be understood that there are many ways to elastically slide the closing piece 34, and those skilled in the art can choose according to actual needs. In the embodiment, as shown in Figure 4 , it is preferred to set a ring-shaped connecting groove 332 on the rotating piece 33, and the closing piece 34 can be elastically and slidably connected to the connecting groove 332 through a spring.

[0047] Embodiment two:

[0048] Compared with embodiment one, the difference between embodiment two is that, as shown in Figure 6 and Figure 7 , the fan blade assembly 3 includes a rotating piece 33, a plurality of fan blades 31, and a rotating shaft piece 35. The plurality of fan blades 31 are installed on the side of the rotating piece 33 at equal intervals along the circumferential direction of the rotating piece 33. The rotating piece 33 is dampingly and rotatably installed on the lower cover 2, and the rotating shaft piece 35 is rotatably installed on the middle part of the rotating piece 33. The rotating shaft piece 35 and the rotating piece 33 are connected through a driving structure. The fan blades 31 are rotatably installed on the side of the rotating piece 33. The end of the fan blade 31 is connected to the rotating shaft piece 35 through a hinged rod 351. The motor 4 is arranged on the side of the upper cover 1, and the motor 4 is in gear transmission cooperation with the rotating shaft piece 35 through a driving end. The rotating shaft piece 35 can rotate a limited angle under the drive of the motor 4 to drive the fan blades 31 to unfold. The rotating piece 33 can be synchronously rotated with the rotating shaft piece 35 after the rotating shaft piece 35 rotates a limited angle through the driving structure.

[0049] It can be understood that the motor 4 is arranged in the same way as in the above-mentioned embodiment one, and the gear transmission cooperation between the motor 4 and the rotating shaft piece 35 is also the same. The difference is that in the present embodiment, the second gear 401 is arranged on the side of the rotating shaft piece 35.

[0050] In this embodiment, the driving structure includes a first driving member arranged on the side of the rotating shaft 35 and a second driving member 335 arranged on the rotating member 33. After the rotating shaft 35 rotates to a limited angle, the first driving member and the second driving member 335 abut and drive the second driving member 335 to rotate the rotating member 33 synchronously with the rotating shaft 35.

[0051] It can be understood that, as described above, the end of the fan blade 31 is connected by the hinged rod 351 and the rotating shaft 35, so as shown, a hinged seat 350 is arranged on the side of the rotating shaft 35; the hinged seat 350 can also abut the second driving member 335 when the rotating shaft 35 rotates to a limited angle, so in this embodiment, in order to simplify the structure of the rotating shaft 35, the hinged seat 350 is arranged as the first driving member. Figure 6

[0052] In this embodiment, why does the rotating member 33 need to be damped and installed on the lower cover 2? The motor 4 first drives the rotating shaft 35, and when the rotating shaft 35 rotates, it drives the fan blade 31 to rotate because the fan blade 31 is hinged, and then extends and unfolds from the rotating gap 5. After the fan blade 31 completes the extension and unfolding, the hinged seat 350 abuts the second driving member 335 and drives the rotating member 33 to rotate. However, it also needs to be known that the rotating shaft 35 is installed in the middle of the rotating member 33; if the connection between the rotating member 33 and the lower cover 2 is very smooth, it may cause the rotating member 33 to rotate with the rotating shaft 35 before the fan blade 31 completes the extension and unfolding, and then the fan blade 31 cannot extend and unfold.

[0053] Therefore, in this embodiment, the rotating member 33 needs to be damped and installed on the lower cover 2; however, there are many ways to dampedly install the rotating member 33 and the lower cover 2, including but not limited to the following two ways.

[0054] Method one: permanent magnets 6 are arranged on the lower cover 2 and the rotating member 33. The rotating member 33 and the lower cover 2 can be dampedly connected by the magnetic attraction between the permanent magnets 6.

[0055] Method two: a permanent magnet 6 is arranged on the lower cover 2, and an electromagnet 7 is arranged on the rotating member 33. The rotating member 33 and the lower cover 2 can be dampedly connected by the magnetic attraction between the permanent magnet 6 and the electromagnet 7.

[0056] ​It should be known that for the first mode, the lower cover 2 can be damped connected with the rotating member 33 through the magnetic attraction between the permanent magnet 6, but the magnetic attraction will always exist, which can have certain influence on the rotation of the rotating member 33. However, for the second mode, the electromagnet 7 can be turned on during the extension and unfolding of the fan blade 31, so that the magnetic attraction between the electromagnet 7 and the permanent magnet 6 is generated to form the damping connection; after the fan blade 31 is unfolded, the electromagnet 7 is turned off, so that the damping connection between the lower cover 2 and the rotating member 33 is cancelled, so that the rotation of the rotating member 33 will not be affected. Therefore, in the embodiment, the second mode is preferred; those skilled in the art can select according to actual needs.

[0057] It should also be known that in order to make the damping connection between the rotating member 33 and the lower cover 2 more stable, the combination of the permanent magnet 6 and the electromagnet 7 can be arranged in pairs and symmetrically arranged along the axis of the rotating member 33.

[0058] It can be understood that when the fan function is not needed by the user, the motor 4 can be controlled and reversed to fold the fan blade 31 between the upper cover 1 and the lower cover 2.

[0059] In the embodiment, for the above-mentioned limited angle, it is preferred to be limited to 70°-90°; those skilled in the art can set it according to actual needs.

[0060] The above describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the present application is not limited to the above-mentioned embodiments, and the above-mentioned embodiments and descriptions in the specification are only the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection claimed by the present application is defined by the appended claims and their equivalents.

Claims

1. A fan ceiling light, characterized by, The fan blade assembly comprises a rotating member and a plurality of fan blades; the rotating member is rotatably installed on the lower cover, and the plurality of fan blades are rotatably installed on the side of the rotating member at equal intervals along the circumferential direction of the rotating member; the driving end of the motor is connected with the rotating member in a gear transmission mode; the rotating member is adapted to rotate under the drive of the motor, thereby driving the fan blades to expand. The motor is arranged on the side of the upper cover and is connected with the rotating member through the driving end in a gear transmission mode; the fan blades are rotatably installed on the rotating member through elastic members; the fan blades are adapted to be folded under the elastic force of the elastic members; the fan blades are adapted to expand under the centrifugal force greater than the elastic force of the elastic members when the rotating member rotates.

2. A fan ceiling light as claimed in claim 1, wherein The fan blade assembly comprises a rotating member, a plurality of fan blades and a rotating shaft member; the plurality of fan blades are rotatably installed on the side of the rotating member at equal intervals along the circumferential direction of the rotating member; the rotating member is dampingly rotatably installed on the lower cover; the rotating shaft member is rotatably installed on the middle part of the rotating member; the rotating shaft member and the rotating member are connected through a driving structure; the fan blades are rotatably installed on the side of the rotating member; the end part of the fan blades is connected with the rotating shaft member through a hinged rod; the motor is arranged on the side of the upper cover and is connected with the rotating shaft member through the driving end in a gear transmission mode.

3. A fan ceiling light as claimed in claim 2, wherein the fan is mounted on the base plate. The rotating shaft member is adapted to rotate by a limited angle under the drive of the motor to drive the fan blades to expand; 4. A fan ceiling light as claimed in claim 3, wherein the fan is mounted on the base plate. The rotating member is adapted to synchronously rotate with the rotating shaft member after the rotating shaft member rotates by the limited angle through the driving structure.

5. A fan ceiling light as claimed in claim 1, wherein The driving structure comprises a first driving member arranged on the side of the rotating shaft member and a second driving member arranged on the rotating member; the first driving member and the second driving member abut against each other when the rotating shaft member rotates by the limited angle, thereby driving the second driving member to synchronously rotate the rotating member with the rotating shaft member. The lower cover and the rotating member are both provided with permanent magnets; the rotating member and the lower cover are adapted to be dampingly connected through the magnetic attraction force between the permanent magnets. The lower cover is provided with a permanent magnet; the rotating member is provided with an electromagnet; the rotating member and the lower cover are adapted to be dampingly connected through the magnetic attraction force between the permanent magnet and the electromagnet.

6. A fan ceiling light as claimed in claim 5, wherein the fan is mounted on the base plate. ​ 7. A fan ceiling light as claimed in claim 6, wherein the fan is mounted on the base plate. ​ 8. A fan ceiling light as claimed in claim 6, wherein the fan is mounted on the base plate. ​ 9. A fan ceiling light as claimed in any one of claims 2 to 8, wherein, The fan blade assembly further comprises a ring-shaped closing member, which is elastically slidably mounted on the side of the rotating member, and is adapted to close the rotating gap; the closing member is provided with a groove, and the fan blade is adapted to be located in the groove when unfolded.

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