Fan lamp

Abstract

The utility model relates to the technical field of life electric appliances, and provides a fan lamp which comprises a fan blade disc, fan blades, a driving piece, a connecting piece and an elastic reset piece, and the fan blade disc is provided with a first side surface and a second side surface which are oppositely arranged; the fan blades are arranged on the first side surface of the fan blade disc and rotationally connected with the fan blade disc. The driving part is connected with the fan blade disc and is configured to drive the fan blade disc to rotate and drive the fan blades to unfold; the connecting piece is arranged on the second side surface of the fan blade disc, and the connecting piece and the fan blades are connected and rotate synchronously; the elastic reset piece is connected between the connecting piece and the fan blade disc and is configured to drive the fan blades to be folded through the connecting piece. The surface of the side, facing the fan blade disc, of each fan blade is provided with a first protruding point structure, and the first protruding point structures make contact with the surface of the fan blade disc. According to the fan lamp, the contact area of the first protruding point structures and the fan blade disc is small, the fan blades and the fan blade disc can slide smoothly, then resistance and noise can be reduced, and user experience is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of household electrical appliances, in particular to a fan lamp. Background Art

[0002] A fan light is a device that has both lighting and fan functions. The blades of some fan lights have an invisible function. When the fan function is needed, the blades rotate under the action of centrifugal force and extend from the fan disk. When the fan function is not needed, the blades rotate in the opposite direction and retract into the fan disk under the action of the elastic reset parts. However, the blades rotate relative to the fan disk when extending and retracting, and the two rub against each other, which easily generates noise during rotation, resulting in a poor user experience. Utility Model Content

[0003] In order to solve the above technical problem or at least partially solve the above technical problem, the utility model provides a fan lamp.

[0004] The utility model provides a fan lamp, comprising:

[0005] The fan blade disk has a first side surface and a second side surface which are arranged opposite to each other;

[0006] A fan blade is disposed on a first side surface of the fan blade disc and is rotatably connected to the fan blade disc;

[0007] A driving member connected to the fan blade disk and configured to drive the fan blade disk to rotate and drive the fan blades to unfold relative to the fan blade disk;

[0008] A connecting member, disposed on the second side surface of the fan blade disc, the connecting member being connected to the fan blade and rotating synchronously;

[0009] An elastic return member, connected between the connecting member and the fan blade disk, and configured to drive the fan blade to close relative to the fan blade disk through the connecting member;

[0010] Wherein, a first convex point structure is arranged on a surface of the fan blade facing the fan blade disk, and the first convex point structure is in contact with the surface of the fan blade disk.

[0011] The fan lamp provided by the utility model comprises a fan blade disc, a fan blade, a driving member, a connecting member and an elastic reset member, wherein the fan blade disc has a first side surface and a second side surface arranged opposite to each other and is rotatably connected to the fan blade disc; the driving member is connected to the fan blade disc, and the driving member is configured to drive the fan blade disc to rotate and drive the fan blade to unfold relative to the fan blade disc, so as to unfold the fan blade when the fan function needs to be used; the connecting member is arranged on the second side surface of the fan blade disc, and the connecting member is connected to the fan blade and rotates synchronously, that is, the connecting member and the fan blade are arranged on both sides of the fan blade disc, and can rotate synchronously relative to the fan blade disc; the elastic reset member is connected between the connecting member and the fan blade disc, and is It is configured to drive the fan blades to close relative to the fan disk through a connecting piece, so as to close the fan blades when the fan function is not needed; a first convex point structure is provided on the surface of the fan blade facing the fan disk, and the first convex point structure is in contact with the surface of the fan disk, that is, when the fan blades rotate relative to the fan disk to expand or close the fan blades, the first convex point structure slides and cooperates with the surface of the fan disk. Compared with the solution in which the fan blades directly contact and cooperate with the fan disk, the contact area between the first convex point structure and the fan disk is relatively reduced, and the fan blades and the fan disk can slide smoothly, thereby reducing the resistance and noise when the fan blades are expanded and closed, thereby improving the user experience.

[0012] In some embodiments, the first bump structure includes a first bump integrally formed on the fan blade;

[0013] There are multiple first protrusions, and the multiple first protrusions are dispersedly arranged on the surface of the fan blade facing the fan blade disk.

[0014] In some embodiments, the surface of the first protrusion is formed as a spherical surface to form point contact with the surface of the impeller disk.

[0015] In some embodiments, the first protrusion structure includes a first ball, a first rolling groove is provided on a surface of the fan blade facing the fan blade disk, and the first ball is disposed in the first rolling groove and rollingly cooperates with the first rolling groove.

[0016] In some embodiments, the first rolling groove is an annular groove, the number of the first balls is multiple, the multiple first balls are arranged at intervals along the circumferential direction, and the multiple first balls are all arranged in the annular groove;

[0017] Alternatively, the first rolling groove is an arc-shaped groove, the number of the first balls and the arc-shaped grooves are both multiple, and the multiple first balls are arranged in the multiple arc-shaped grooves in a one-to-one correspondence.

[0018] In some embodiments, a surface of one side of the connecting member facing the impeller disk is formed as a first mating plane, a second protrusion structure is provided on the first mating plane, and the second protrusion structure is in contact with the surface of the impeller disk.

[0019] In some embodiments, the second bump structure includes at least one second bump integrally formed on the connector;

[0020] Alternatively, the second protrusion structure includes at least one second ball, and a second rolling groove for mounting the second ball is provided on a surface of the connecting member on one side facing the fan disk.

[0021] In some embodiments, a limiting portion is provided on the fan blade, and a limiting matching portion corresponding to the limiting portion is provided on the fan blade disc, the limiting matching portion includes two limiting protrusions arranged at intervals, and the limiting portion is located between the two limiting protrusions;

[0022] When the fan blades are unfolded, the limiting portion abuts against one of the limiting protrusions for limiting position, and when the fan blades are closed, the limiting portion abuts against the other limiting protrusion for limiting position.

[0023] In some embodiments, the number of the fan blades, the connecting members and the elastic return members are all multiple, the multiple fan blades are arranged on the fan blade disk at intervals along the circumferential direction, the multiple connecting members and the multiple fan blades are arranged in a one-to-one correspondence, and the multiple elastic return members and the multiple connecting members are connected in a one-to-one correspondence.

[0024] In some embodiments, a through hole is formed on the fan blade disk, and the fan blade and the connecting member are connected by a fastener penetrating through the through hole, so that the fan blade and the connecting member rotate relative to the fan blade disk with the fastener as a rotation axis;

[0025] And / or, the elastic return member is a tension spring, one end of the tension spring is connected to the connecting member, and the other end is connected to the fan blade disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] The accompanying drawings herein are incorporated in and constitute a part of the specification, illustrate embodiments consistent with the present utility model, and together with the description, are used to explain the principles of the present utility model.

[0027] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0028] Figure 1 This is a structural schematic diagram of a fan light according to an embodiment of the utility model, in which the fan blades are in a closed position;

[0029] Figure 2An exploded view of a fan light according to an embodiment of the utility model, with the fan blades in a closed position;

[0030] Figure 3 This is a structural schematic diagram of a fan light according to an embodiment of the utility model, in which the fan blades are in an unfolded position;

[0031] Figure 4 An exploded view of a fan light according to an embodiment of the utility model, in which the fan blades are in an expanded position;

[0032] Figure 5 This is a schematic diagram of the structure of the bottom of a fan lamp according to an embodiment of the utility model;

[0033] Figure 6 This is a structural schematic diagram of the bottom of the fan lamp of one embodiment of the utility model from another perspective;

[0034] Figure 7 This is a schematic diagram of the structure of a fan blade disk according to an embodiment of the utility model;

[0035] Figure 8 This is a schematic structural diagram of a connecting piece according to an embodiment of the utility model;

[0036] Fig. 9 The figure is a schematic diagram of the structure of the fan blades according to an embodiment of the present invention.

[0037] In the figure: 1. fan blade disk; 11. limiting protrusion; 12. through hole; 2. fan blade; 21. first protrusion structure; 22. limiting portion; 23. annular end face; 3. connecting member; 31. second protrusion structure; 32. first matching plane; 4. elastic reset member; 5. driving member; 6. fastener. DETAILED DESCRIPTION

[0038] In order to more clearly understand the above-mentioned purpose, features and advantages of the utility model, the scheme of the utility model will be further described below. It should be noted that the embodiments of the utility model and the features in the embodiments can be combined with each other without conflict.

[0039] In the following description, many specific details are set forth to facilitate a full understanding of the present invention, but the present invention may also be implemented in other ways different from those described herein; obviously, the embodiments in the specification are only part of the embodiments of the present invention, rather than all of the embodiments.

[0040] Reference Figures 1 to 9 As shown, some embodiments of the present invention provide a fan lamp, comprising a fan blade disc 1, fan blades 2, a driving member 5, a connecting member 3 and an elastic reset member 4.

[0041] The impeller disk 1 has a first side surface and a second side surface that are arranged opposite to each other, and the blades 2 are arranged on the first side surface of the impeller disk 1 and are connected to the impeller disk 1 in rotation; the driving member 5 is connected to the impeller disk 1, and the driving member 5 is configured to drive the impeller disk 1 to rotate and drive the blades 2 to unfold relative to the impeller disk 1. Specifically, centrifugal force will be generated during the process of the impeller disk 1 being driven by the driving member 5 to rotate, and the blades 2 will rotate relative to the impeller disk 1 under the action of the centrifugal force, that is, the blades 2 will be thrown out in a direction away from the center of the impeller disk 1 under the action of the centrifugal force to unfold the blades 2; after the blades 2 are unfolded relative to the impeller disk 1, during the continuous rotation of the impeller disk 1, the blades 2 will remain in the unfolded state under the action of the centrifugal force and will rotate synchronously with the impeller disk 1.

[0042] The connecting member 3 is arranged on the second side surface of the blade disk 1, and the connecting member 3 is connected to the blade 2 and rotates synchronously, that is, the connecting member 3 and the blade 2 are arranged on both sides of the blade disk 1, and can rotate synchronously relative to the blade disk 1; the elastic reset member 4 is connected between the connecting member 3 and the blade disk 1, and is configured to drive the blade 2 to close relative to the blade disk 1 through the connecting member 3. In this arrangement, the blade 2 rotates relative to the blade disk 1 to realize the expansion or closing of the blade 2 relative to the blade disk 1, that is, the opening and closing function of the blade 2 is realized.

[0043] It should be noted that, in order to enable the blades 2 and the connecting member 3 to rotate relative to the impeller disk 1, a through hole 12 may be provided on the impeller disk 1, and the blades 2 and the connecting member 3 are connected by a fastener 6 penetrating through the through hole 12, so that the blades 2 and the connecting member 3 can rotate relative to the impeller disk 1 with the fastener 6 as the rotating axis. Furthermore, in order to enable the blades 2 to unfold under the action of centrifugal force when the impeller disk 1 rotates, the blades 2 may be arranged at a position away from the center of the impeller disk 1, for example, the blades 2 may be arranged at the edge of the impeller disk 1; the number of blades 2 may be multiple, for example, three, four, etc., and the multiple blades 2 may be arranged at the edge of the impeller disk 1 at intervals along the circumference of the impeller disk 1. Exemplarily, the drive member 5 may be a drive mechanism such as a motor, and the drive member 5 may be connected to the center of the impeller disk 1, and the impeller disk 1 may be driven to rotate by a drive mechanism such as a motor.

[0044] In specific implementation, the elastic reset member 4 is connected between the connecting member 3 and the fan disk 1. In the process of the driving member 5 driving the fan disk 1 to rotate, the fan blades 2 are rotated relative to the fan disk 1 under the action of the centrifugal force, and drive the connecting member 3 and the fan blades 2 to rotate synchronously, so that the elastic reset member 4 connected between the connecting member 3 and the fan disk 1 is deformed and stores elastic potential energy; in this way, when the driving member 5 stops driving, that is, after the driving member 5 stops providing the rotation function to the fan disk 1, the fan disk 1 will gradually slow down to stop rotating, and the centrifugal force generated by the rotation of the fan disk 1 will slowly decrease to disappear, and the elastic reset member 4 releases the elastic potential energy and restores the state before deformation, so that the connecting member 3 rotates in the opposite direction relative to the fan disk 1 under the elastic force of the elastic reset member 4 and drives the fan blades 2 to close, thereby realizing the function of using the elastic reset member 4 to drive the fan blades 2 to reset, so that the fan blades 2 rotate relative to the fan disk 1 to the closed state.

[0045] Further, refer to Fig. 9 As shown, a first convex point structure 21 is provided on the surface of the blade 2 facing the blade disk 1, and the first convex point structure 21 contacts the surface of the blade disk 1. That is, when the blade 2 rotates relative to the blade disk 1 to unfold or close the blade 2, the first convex point structure 21 slides with the surface of the blade disk 1. Compared with the solution in which the blade 2 directly contacts and cooperates with the blade disk 1, the contact area between the first convex point structure 21 and the blade disk 1 is relatively reduced, and the blade 2 and the blade disk 1 can slide smoothly, thereby reducing the resistance and noise when the blade 2 is unfolded and closed, thereby improving the user experience.

[0046] It can be understood that the fan blades 2 are arranged on the first side surface of the fan blade disc 1, and the connecting member 3 and the elastic return member 4 are arranged on the second side surface of the fan blade disc 1, that is, they are arranged on different sides of the fan blade disc 1. This can avoid the connecting member 3 and the elastic return member 4 from interfering with the movement of the fan blades 2, thereby ensuring that the fan blades 2 can be stably unfolded and closed.

[0047] In some embodiments, the first protrusion structure 21 includes a first protrusion integrally formed on the fan blade 2. It can be understood that the first protrusion protrudes from the side surface of the fan blade 2 facing the fan blade disk 1 so as to contact and slide relatively with the first side surface of the fan blade disk 1, thereby reducing the contact area between the fan blade 2 and the fan blade disk 1.

[0048] There are multiple first convex points, which are dispersed on the surface of the fan blade 2 facing the fan disc 1. The multiple first convex points are jointly supported between the fan blade 2 and the fan disc 1, so that the fan blade 2 can rotate more smoothly. Specifically, the first convex points can be three, four or more, so that a rotation plane is jointly determined by the multiple first convex points, so that the fan blade 2 can rotate smoothly.

[0049] Specifically, an annular end face 23 is formed on the fan blade 2, and a plurality of first protrusions are arranged on the annular end face 23 of the fan blade 2 at intervals in the circumferential direction. The center of the annular groove coincides with the rotation center of the fan blade 2, so that the first protrusions can roll with the fan blade 2 relative to the fan blade disk 1.

[0050] Furthermore, the surface of the first protrusion is formed as a spherical surface to form a point contact with the surface of the impeller disk 1, so as to further reduce the contact area between the first protrusion and the impeller disk 1, increase the smoothness of the rotation of the fan blade 2, and avoid noise.

[0051] In some embodiments, reference Fig. 9 As shown, the first convex point structure 21 includes a first ball, a first rolling groove is provided on the surface of the side of the fan blade 2 facing the fan blade disk 1, and the first ball is provided in the first rolling groove and rollingly cooperates with the first rolling groove. It can be understood that the first ball and the first rolling groove, and the first ball and the fan blade disk 1 are all rollingly cooperated, which can reduce the blockage between the fan blade 2 and the fan blade disk 1 when the fan blade 2 rotates, reduce the friction force when the fan blade rotates, and thus enable the fan blade 2 to slide smoothly when it is unfolded and closed.

[0052] In a specific implementation, the first rolling groove is an annular groove, the number of the first balls is multiple, the multiple first balls are arranged at intervals along the circumferential direction, the multiple first balls are all arranged in the annular groove, that is, the multiple first balls are all arranged in the same annular groove, and the multiple first balls can roll in the annular groove following the rotation of the blade 2. Specifically, the center of the annular groove coincides with the rotation center of the blade 2, so that the blade 2 can drive the first balls to roll relative to the blade disk 1 in the annular groove when rotating.

[0053] In other embodiments, the first rolling groove is an arc groove, and the number of the first ball bearings and the arc grooves are both multiple, and the multiple first ball bearings are arranged in the multiple arc grooves in a one-to-one correspondence, and the two ends of the arc groove at least need to correspond to the extreme positions of the fan blade 2 when it is unfolded and closed, so as to ensure that the fan blade 2 can move between the unfolded position and the closed position, and can have a high degree of smoothness. In specific implementation, the center of the multiple arc grooves coincides with the rotation center of the fan blade 2, so as to rotate with the rotation of the fan blade 2, and the position and radius of the multiple arc grooves can be specifically set according to actual needs, and the utility model does not limit this.

[0054] Of course, it should be noted that the first protrusion structure 21 can also be a structure of other forms, and the present invention is not limited to this, as long as it can contact the first side surface of the fan blade disk 1 and reduce the contact area between the fan blade 2 and the fan blade disk 1 to increase the rotation smoothness of the fan blade 2.

[0055] In some embodiments, reference Figure 8As shown, the surface of one side of the connecting member 3 facing the impeller disk 1 is formed into a first mating plane 32, and a second convex point structure 31 is provided on the first mating plane 32, and the second convex point structure 31 contacts the surface of the impeller disk 1. It can be understood that the connecting member 3 rotates synchronously with the blades 2, and by providing the second convex point structure 31 on the first mating plane 32 of the connecting member 3, the contact area between the connecting member 3 and the impeller disk 1 can be reduced, thereby allowing the connecting member 3 to slide smoothly relative to the impeller disk 1. In specific implementation, the second convex point structure 31 is provided on the first mating plane 32, and a rotation plane can be determined by the second convex point structure 31, so that the connecting member 3 can rotate smoothly.

[0056] Specifically, the second protrusion structure 31 includes at least one second protrusion integrally formed on the connecting member 3, and the second protrusion protrudes from the first mating plane 32 to contact and slide relatively with the second side surface of the impeller disk 1, thereby reducing the contact area between the connecting member 3 and the impeller disk 1. At least one second protrusion can be dispersed on the first mating plane 32 according to actual needs, and the present utility model does not limit this.

[0057] In other embodiments, the second protrusion structure 31 includes at least one second ball, and a second rolling groove for installing the second ball is provided on the surface of the connecting member 3 facing the fan disk 1. The second ball and the second rolling groove, as well as the second ball and the fan disk 1 are rolling fit, which can reduce the blockage between the connecting member 3 and the fan disk 1 when the connecting member 3 rotates, and reduce the friction force when the connecting member 3 rotates.

[0058] In a specific implementation, the surfaces of the second protrusion and the second ball are formed as spherical surfaces to form point contact with the surface of the impeller disk 1, so as to further reduce the contact area between the second protrusion structure 31 and the impeller disk 1, increase the smoothness of the rotation of the connecting member 3, and avoid noise.

[0059] It should be noted that the second protrusion structure 31 can also be a structure of other forms, and the present invention is not limited to this, as long as it can contact the second side surface of the impeller disk 1 and reduce the contact area between the connecting member 3 and the impeller disk 1 to increase the rotation smoothness of the connecting member 3.

[0060] In some embodiments, reference Figures 1 to 4 As shown, a limiting portion 22 is provided on the blade 2, and a limiting matching portion corresponding to the limiting portion 22 is provided on the blade disc 1. The limiting matching portion includes two limiting protrusions 11 arranged at intervals, and the limiting portion 22 is located between the two limiting protrusions 11. Specifically, the limiting portion 22 is provided on the side of the blade 2 and protrudes from the side wall surface of the blade 2. The two limiting protrusions 11 are arranged on the outer side of the edge of the blade 2 along the circumferential direction, so that the limiting portion 22 can be located between the two limiting protrusions 11.

[0061] It can be understood that when the fan blades 2 rotate, the limiting portion 22 moves between the two limiting protrusions 11 along with the fan blades 2. When the fan blades 2 are unfolded, the limiting portion 22 abuts against one of the limiting protrusions 11 to limit the unfolding angle of the fan blades 2. When the fan blades 2 are closed, the limiting portion 22 abuts against the other limiting protrusion 11 to limit the closing angle of the fan blades 2.

[0062] It should be noted that the limiting portion 22 and the limiting matching portion may also be other structures, and the present invention does not limit this, as long as they can limit the position of the fan blade 2 when it is unfolded and closed.

[0063] In some embodiments, the number of blades 2, connectors 3 and elastic reset members 4 are all multiple, and multiple blades 2 are arranged on the blade disk 1 at intervals along the circumferential direction. Multiple connectors 3 and multiple blades 2 are arranged one-to-one, and multiple elastic reset members 4 and multiple connectors 3 are connected one-to-one. It can be understood that each blade 2 can be individually arranged in correspondence with the corresponding connector 3 and elastic reset member 4 to independently realize expansion or closure, which is convenient for assembly and later maintenance. The blades 2, connectors 3 and elastic reset members 4 can be replaced or cleaned separately. Specifically, a limiting portion 22 is provided on each blade 2, and a limiting matching portion is provided at the corresponding position of the blade disk 1.

[0064] In some embodiments, a through hole 12 is provided on the blade disc 1, and the blades 2 and the connecting member 3 are connected by a fastener 6 penetrating through the through hole 12, so that the blades 2 and the connecting member 3 can rotate relative to the blade disc 1 with the fastener 6 as the rotation axis. In other words, the blades 2 and the connecting member 3 can be connected by fasteners 6 such as screws and bolts, so that the blades 2 and the connecting member 3 can rotate synchronously, and the elastic reset member 4 does not need to be connected to the blades 2, but drives the blades 2 to close through the connecting member 3, which can simplify the structure of the blades 2.

[0065] Reference Figure 1 and Figure 3 As shown, a driving member 5 is connected to the blade disc 1, and the driving member 5 is used to drive the blade disc 1 to rotate. When the blades 2 are closed, an installation space for installing the driving member 5 is formed on the inner side of the blades 2 to avoid motion interference between the driving member 5 and the blades 2. Specifically, the driving member 5 can be fixed to the blade disc 1 by fasteners 6 such as screws and bolts to drive the blade disc 1 to rotate and generate centrifugal force to drive the blades 2 to unfold. Specifically, the driving member 5 is a motor. When the fan function needs to be used, the motor drives the blade disc 1 to rotate so that the blades 2 are thrown away from the center of the blade disc 1 under the action of centrifugal force to achieve air supply; when the fan function needs to be turned off, the motor stops driving, that is, the motor stops providing rotational kinetic energy to the blade disc 1, the blade disc 1 gradually slows down to stop rotating, the centrifugal force slowly decreases to disappear, and the elastic reset member 4 overcomes the centrifugal force to reset the blades 2 to close the blades 2.

[0066] Reference Figure 5 As shown, the elastic reset member 4 is a tension spring, one end of which is connected to the connecting member 3, and the other end is connected to the fan blade disc 1. It can be understood that when the fan blade 2 is unfolded by the centrifugal force, the connecting member 3 rotates synchronously with the fan blade 2 to drive the tension spring to undergo elastic deformation, and the fan blade 2 can maintain a certain angle of rotation to supply air. When the driving member 5 stops driving, the fan blade disc 1 gradually slows down to stop rotating, and the centrifugal force on the fan blade 2 gradually decreases and disappears. The tension spring restores the deformation and drives the connecting member 3 to move. The fan blade 2 gradually closes with the rotation of the connecting member 3, and then the fan blade 2 is hidden in the fan blade disc 1. That is, when the fan function of the fan lamp of the utility model is not in use, the fan blade 2 can be automatically recovered, and the fan lamp is more beautiful as a whole.

[0067] It should be noted that, in this article, relational terms such as "first" and "second" are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the elements defined by the sentence "comprise a ..." do not exclude the existence of other identical elements in the process, method, article or device including the elements.

[0068] The above are only specific embodiments of the present invention, which enable those skilled in the art to understand or implement the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to these embodiments herein, but will conform to the widest scope consistent with the principles and novel features of the present invention.

Claims

1. A fan light, characterized in that: include: The fan blade disk has a first side surface and a second side surface which are arranged opposite to each other; A fan blade is disposed on a first side surface of the fan blade disc and is rotatably connected to the fan blade disc; A driving member connected to the fan blade disk and configured to drive the fan blade disk to rotate and drive the fan blades to unfold relative to the fan blade disk; A connecting member, disposed on the second side surface of the fan blade disc, the connecting member being connected to the fan blade and rotating synchronously; An elastic return member, connected between the connecting member and the fan blade disk, and configured to drive the fan blade to close relative to the fan blade disk through the connecting member; Wherein, a first convex point structure is arranged on a surface of the fan blade facing the fan blade disk, and the first convex point structure is in contact with the surface of the fan blade disk.

2. The fan light according to claim 1, characterized in that: The first convex point structure includes a first convex point integrally formed on the fan blade; There are multiple first protrusions, and the multiple first protrusions are dispersedly arranged on the surface of the fan blade facing the fan blade disk.

3. The fan light according to claim 2, characterized in that: The surface of the first protrusion is formed as a spherical surface to form a point contact with the surface of the impeller disk.

4. The fan light according to claim 1, characterized in that: The first convex point structure includes a first ball, and a first rolling groove is arranged on the surface of the fan blade on the side facing the fan blade disk. The first ball is arranged in the first rolling groove and rollingly cooperates with the first rolling groove.

5. The fan light according to claim 4, characterized in that: The first rolling groove is an annular groove, the number of the first balls is multiple, the multiple first balls are arranged at intervals along the circumferential direction, and the multiple first balls are all arranged in the annular groove; Alternatively, the first rolling groove is an arc-shaped groove, the number of the first balls and the arc-shaped grooves are both multiple, and the multiple first balls are arranged in the multiple arc-shaped grooves in a one-to-one correspondence.

6. The fan light according to claim 1, characterized in that: A surface of one side of the connecting member facing the impeller disk is formed as a first matching plane, a second convex point structure is arranged on the first matching plane, and the second convex point structure is in contact with the surface of the impeller disk.

7. The fan light according to claim 6, characterized in that: The second bump structure includes at least one second bump integrally formed on the connector; Alternatively, the second protrusion structure includes at least one second ball, and a second rolling groove for mounting the second ball is provided on a surface of the connecting member on one side facing the fan disk.

8. The fan light according to any one of claims 1 to 7, characterized in that: The fan blade is provided with a limiting portion, and the fan blade disc is provided with a limiting matching portion corresponding to the limiting portion, the limiting matching portion includes two limiting protrusions arranged at intervals, and the limiting portion is located between the two limiting protrusions; When the fan blades are unfolded, the limiting portion abuts against one of the limiting protrusions for limiting position, and when the fan blades are closed, the limiting portion abuts against the other limiting protrusion for limiting position.

9. The fan light according to any one of claims 1 to 7, characterized in that: The number of the fan blades, the connecting members and the elastic return members are all multiple, the multiple fan blades are arranged on the fan blade disk at intervals along the circumferential direction, the multiple connecting members and the multiple fan blades are arranged in a one-to-one correspondence, and the multiple elastic return members and the multiple connecting members are connected in a one-to-one correspondence.

10. The fan light according to any one of claims 1 to 7, characterized in that: The fan blade disc is provided with a through hole, and the fan blade and the connecting member are connected by a fastener penetrating through the through hole, so that the fan blade and the connecting member can rotate relative to the fan blade disc with the fastener as a rotation axis; And / or, the elastic return member is a tension spring, one end of the tension spring is connected to the connecting member, and the other end is connected to the fan blade disk.

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