Invisible fan and invisible fan lamp

Abstract

The utility model discloses an invisible fan and an invisible fan lamp, the invisible fan comprises a rotating frame, at least two fan blades, a connecting rod and an elastic piece, the fan blades are provided with connecting end parts, the connecting end parts are rotatably connected to the rotating frame, the at least two connecting end parts are arranged along the circumferential direction of the rotating frame, and the elastic piece is arranged on the connecting rod. At least one connecting rod is rotationally connected between two adjacent connecting end parts in the circumferential direction of the rotating frame, the number of the elastic pieces is at least two, the at least two elastic pieces are arranged on the at least two connecting end parts in a one-to-one correspondence mode, and the elastic pieces are connected with the rotating frame; the rotating frame can rotate so as to drive the at least two fan blades to synchronously rotate and unfold through the connecting rod, and when the rotating frame stops rotating, the elastic piece can drive the at least two fan blades to synchronously rotate and fold under the action of the connecting rod.

Description

Technical Field

[0001] The utility model relates to the technical field of air supply equipment, in particular to a stealth fan and a stealth fan lamp. Background Art

[0002] The invisible fan can be hung on the ceiling so that the fan blades can be rotated and expanded synchronously to rotate and supply air when in working state, and the fan blades can be rotated and folded synchronously when in shutdown state to improve the overall appearance of the invisible fan.

[0003] In the existing technology, some invisible fans use a gear structure to achieve synchronous rotation to expand and fold the fan blades. Specifically, the invisible fan includes a rotating frame and at least two fan blades rotatably connected to the rotating frame. The rotating frame is rotatably connected to a first gear, and the fan blades are provided with a second gear. At least two second gears are arranged around the first gear, and the second gear is engaged with the first gear. When the invisible fan is in a working state, the rotating frame rotates so that the at least two fan blades rotate synchronously to expand under the action of the first gear and the second gear; when the invisible fan is in a stopped state, the elastic member on the rotating frame drives the at least two fan blades to rotate synchronously to fold under the action of the first gear and the second gear.

[0004] However, after studying the above-mentioned invisible fan, the inventors found that the above-mentioned invisible fan has the following problems: 1. The use of a gear structure will increase the production cost of the invisible fan; 2. The gear engagement will generate a large noise during the process of the fan blades rotating to expand or rotate to retract. Utility Model Content

[0005] The utility model aims to solve at least one of the technical problems in the prior art. To this end, the utility model proposes a stealth fan.

[0006] The utility model also provides a stealth fan lamp having the stealth fan.

[0007] According to the first aspect of the present invention, an invisible fan includes a rotating frame, fan blades, a connecting rod and an elastic member, the fan blades are provided with connecting ends, and the connecting ends are rotatably connected to the rotating frame. The fan blades are provided with at least two, and at least two of the connecting ends are arranged along the circumference of the rotating frame. At least one connecting rod is rotatably connected between two adjacent connecting ends along the circumference of the rotating frame. The elastic member is provided with at least two, and at least two of the elastic members are arranged one-to-one at at least two of the connecting ends. The elastic member is connected to the rotating frame, wherein the rotating frame can rotate to drive at least two of the fan blades to rotate and expand synchronously through the connecting rod. When the rotating frame stops rotating, the elastic member can drive at least two of the fan blades to rotate and retract synchronously under the action of the connecting rod.

[0008] According to an embodiment of the present invention, a stealth fan has at least one of the following beneficial effects:

[0009] The blades of the invisible fan of the embodiment of the present utility model are provided with connecting ends, which are rotatably connected to the rotating frame. The blades are provided with at least two connecting ends, and the at least two connecting ends are provided along the circumference of the rotating frame. At least one connecting rod is rotatably connected between two adjacent connecting ends along the circumference of the rotating frame, and there are at least two of them. At least two elastic members are provided at the at least two connecting ends in a one-to-one correspondence, and the elastic members are connected to the rotating frame.

[0010] When the invisible fan is in working state, the rotating frame rotates to drive at least two fan blades to rotate and expand synchronously through the connecting rod; when the invisible fan is in shutdown state, the rotating frame stops rotating, and the elastic member drives at least two fan blades to rotate and retract synchronously under the action of the connecting rod.

[0011] Through the above structure, on the one hand, the setting of the connecting rod can realize the synchronous rotation and expansion and synchronous rotation and folding of at least two fan blades; on the other hand, the traditional gear structure realizes the synchronous rotation of the corresponding two adjacent fan blades, which requires at least three gear parts (including a first gear and two second gears), while the present application solution only requires one connecting rod to realize the synchronous rotation of the corresponding two adjacent fan blades, thereby reducing the production cost of the invisible fan; on the other hand, in the process of rotation and expansion or rotation and folding of the fan blades, the noise generated by the rotation of the fan blades can be reduced due to the elimination of the gear structure (i.e., no gear meshing).

[0012] According to some embodiments of the present invention, the connecting end is provided with a first connecting column and a second connecting column, and the connecting rod between two adjacent connecting ends along the circumference of the rotating frame has one end rotatably mounted on the first connecting column of one of the connecting ends, and the other end rotatably mounted on the second connecting column of the other connecting end.

[0013] According to some embodiments of the present invention, the angle between the first connecting column and the second connecting column on the same connecting end and the line connecting the first connecting column ...

[0014] According to some embodiments of the present invention, one of the rotating frame and the connecting end is provided with a protrusion, and the other one is provided with two limit blocks, and the limit blocks can abut against the protrusion to limit the rotatable angle of the fan blade.

[0015] According to some embodiments of the present invention, the connecting rod is provided with a first rod segment, a second rod segment and a third rod segment connected in sequence, the first rod segment and the third rod segment are parallel to each other, the angle between the first rod segment and the second rod segment is B, and the angle between the second rod segment and the third rod segment is C, wherein B=C, and B and C are both obtuse angles.

[0016] According to some embodiments of the present invention, the rotating frame includes a rotating disk and a blade fork member, and the blade fork member is provided in at least two, one end of the blade fork member is connected to the rotating disk, at least two of the blade fork members are arranged along the circumference of the rotating disk, at least two of the connecting ends are rotatably connected to the other end of at least two of the blade fork members in a one-to-one correspondence, and at least two of the elastic members are connected to the other end of at least two of the blade fork members in a one-to-one correspondence.

[0017] According to some embodiments of the present invention, the blade fork member is bent so that the height of one end thereof is greater than the height of the other end.

[0018] According to some embodiments of the present invention, a connecting portion is provided between two adjacent blade fork members along the circumference of the rotating disk, and the rotating disk, the blade fork members and the connecting portion are an integrally formed structure.

[0019] According to some embodiments of the present invention, the number of the fan blades, the connecting rods, and the elastic members is set to three.

[0020] The invisible fan light according to the second embodiment of the present invention includes the invisible fan as described above.

[0021] The invisible fan light according to the embodiment of the present invention has at least the following beneficial effects: through the above structure, the production cost can be reduced, and the noise generated when the fan blades rotate can be reduced.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through 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 readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0024] Figure 1 This is a structural diagram of an embodiment of the invisible fan of the utility model;

[0025] Figure 2 for Figure 1 A partial exploded view of the invisible fan with some parts removed;

[0026] Figure 3 for Figure 1 Another partial exploded view of the invisible fan with some parts removed;

[0027] Figure 4 for Figure 1 A cross-sectional view of the invisible fan with some parts removed;

[0028] Figure 5 This is a structural diagram of another embodiment of the invisible fan of the present utility model;

[0029] Figure 6 for Figure 5 A partial exploded view of the invisible fan with some parts removed;

[0030] Figure 7 for Figure 5 Another partial exploded view of the invisible fan with some components removed.

[0031] Reference numerals:

[0032] Rotating frame 100, rotating disk 110, blade fork 120, protrusion 121, connecting hole 122;

[0033] The fan blade 200, the connecting end portion 210, the first connecting column 211, the second connecting column 212, the limiting block 213, and the through hole 214;

[0034] Connecting rod 300, first rod segment 310, second rod segment 320, third rod segment 330, collar 340;

[0035] elastic member 400;

[0036] Pad 500. DETAILED DESCRIPTION

[0037] This section will describe in detail the specific embodiments of the present invention. The preferred embodiments of the present invention are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and overall technical solution of the present invention, but it cannot be understood as a limitation on the scope of protection of the present invention.

[0038] In the description of this utility model, if there are descriptions of first, second, third, fourth, fifth, etc., they are only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0039] In the description of the present invention, it should be understood that descriptions involving orientations, such as up, down, front, back, left, right, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they cannot be understood as limitations on the present invention.

[0040] In this utility model, unless otherwise expressly defined, terms such as "disposed," "installed," and "connected" should be interpreted broadly. For example, they may refer to direct connection or indirect connection through an intermediate medium; fixed connection or detachable connection or integral molding; mechanical connection; internal communication between two components or interaction between two components. Those skilled in the art can reasonably determine the specific meanings of these terms in this utility model based on the specific content of the technical solution.

[0041] Reference Figures 1 to 4 An embodiment of the present invention provides an invisible fan, which includes a rotating frame 100, fan blades 200, a connecting rod 300 and an elastic member 400.

[0042] The fan blade 200 is provided with a connecting end 210, which is rotatably connected to the rotating frame 100. The fan blade 200 is provided with three connecting ends 210, which are arranged along the circumference of the rotating frame 100. A connecting rod 300 is rotatably connected between two adjacent connecting ends 210 along the circumference of the rotating frame 100. The fan blade 200 is provided with three elastic members 400, which are respectively provided at the three connecting ends 210 and connected to the rotating frame 100. The elastic members 400 are configured as torsion springs.

[0043] It can be understood that a connecting rod 300 is rotatably connected between two adjacent connecting ends 210 along the circumference of the rotating frame 100, that is, in this embodiment, three connecting rods 300 are provided. Figure 1 shown.

[0044] When the invisible fan is in operation, the rotating frame 100 rotates to drive the three fan blades 200 to rotate and unfold synchronously through the connecting rod 300 .

[0045] It can be understood that the process of rotating the rotating frame 100 to drive the three fan blades 200 to rotate and unfold synchronously through the connecting rod 300 is as follows: the rotating frame 100 rotates, the fan blades 300 rotate under the action of centrifugal force and wind resistance, and the elastic member 400 deforms and accumulates force. At this time, the rotating fan blades 300 will also pull the adjacent fan blades 300 to rotate through the connecting rod 300, so that the three fan blades 200 can rotate and unfold synchronously.

[0046] When the invisible fan is in a stopped state, the rotating frame 100 stops rotating, and the elastic member 400 drives the three fan blades 200 to rotate and retract synchronously under the action of the connecting rod 300.

[0047] It can be understood that when the rotating frame 100 stops rotating, the elastic member 400 drives the three fan blades 200 to rotate and retract synchronously under the action of the connecting rod 300. The process is as follows: the rotating frame 100 stops rotating, the elastic member 400 recovers to drive the connected fan blades 300 to rotate and retract. At this time, the rotating fan blades 300 will also push the adjacent fan blades 300 to rotate through the connecting rod 300, so the three fan blades 200 can rotate and retract synchronously.

[0048] Through the above structure, on the one hand, the setting of the connecting rod 300 can realize the synchronous rotation and expansion and synchronous rotation and retraction of the three fan blades 200; on the other hand, the traditional gear structure realizes the synchronous rotation of the corresponding two adjacent fan blades 200, which requires at least three gear parts (including a first gear and two second gears), while the present application solution only requires one connecting rod 300 to realize the synchronous rotation of the corresponding two adjacent fan blades 200, thereby reducing the production cost of the invisible fan; on the other hand, in the process of the fan blades 200 rotating to expand or rotating to retract, the noise generated by the rotation of the fan blades 200 can be reduced due to the elimination of the gear structure (i.e., no gear meshing).

[0049] In some embodiments, the number of the fan blades 200, the connecting rods 300, and the elastic members 400 are all set to two, four, etc.

[0050] In some embodiments, two connecting rods 300 are rotatably connected between two adjacent connecting ends 210 along the circumference of the rotating frame 100 .

[0051] A connecting rod 300 is rotatably connected between two adjacent connecting ends 210 along the circumferential direction of the rotating frame 100. Figure 2 and Figure 3 The connecting end portion 210 is provided with a first connecting post 211 and a second connecting post 212. A connecting rod 300 between two adjacent connecting end portions 210 along the circumferential direction of the rotating frame 100 has one end rotatably sleeved on the first connecting post 211 of one connecting end portion 210, and the other end rotatably sleeved on the second connecting post 212 of the other connecting end portion 210. A collar 340 is provided at each end of the connecting rod 300, one collar 340 being sleeved on the first connecting post 211 of one connecting end portion 210, and the other collar 340 being sleeved on the second connecting post 212 of the other connecting end portion 210.

[0052] In some embodiments, the first connecting post 211 and the second connecting post 212 are both disposed on the connecting rod 300 , and the collar 340 is disposed on the connecting end 210 .

[0053] In this embodiment, referring to Figure 2 The angle between the first connecting post 211 and the second connecting post 212 on the same connecting end 210 and the lines connecting them to the rotation axis of the same connecting end 210 is A, where A=120°.

[0054] In some embodiments, A=140°.

[0055] In this embodiment, referring to Figures 2 to 4 The rotating frame 100 is provided with a protrusion 121 , and the connecting end 210 is provided with two limit blocks 213 . The limit blocks 213 can abut against the protrusion 121 to limit the rotatable angle of the fan blade 200 .

[0056] It can be understood that when the fan blades 200 rotate and expand until the protrusion 121 abuts against one of the limit blocks 213, the limit block 213 restricts the fan blades 200 from continuing to rotate and expand; when the fan blades 200 rotate and retract until the protrusion 121 abuts against the other limit block 213, the limit block 213 restricts the fan blades 200 from continuing to rotate and retract.

[0057] In some embodiments, the protrusion 121 is disposed on the connecting end 210 , and the limiting block 213 is disposed on the rotating frame 100 .

[0058] In order to improve the structural strength of the connecting rod 300, refer to Figure 2 The connecting rod 300 is provided with a first rod segment 310, a second rod segment 320 and a third rod segment 330 connected in sequence. The first rod segment 310 and the third rod segment 330 are parallel to each other. The angle between the first rod segment 310 and the second rod segment 320 is B, and the angle between the second rod segment 320 and the third rod segment 330 is C, wherein B=C, and B and C are both obtuse angles.

[0059] The turret 100 includes a rotating disk 110 and a blade fork 120 .

[0060] Reference Figure 1 The number of blade fork members 120 is set to three, one end of the blade fork member 120 is connected to the rotating disk 110, the three blade fork members 120 are arranged along the circumference of the rotating disk 110, the three connecting end portions 210 are rotatably connected to the other ends of the three blade fork members 120 one by one, and the three elastic members 400 are connected to the other ends of the three blade fork members 120 one by one.

[0061] The connecting end portion 210 is rotatably connected to the other end portion of the blade fork member 120. For details, refer to Figure 1 and Figure 2The other end of the blade fork 120 is provided with a connecting hole 122, and the connecting end 210 is provided with a through hole 214. A supporting block is provided on the wall of the through hole 214. A cushion block 500 is provided in the through hole 214, and the cushion block 500 abuts against the supporting block. A fastener 600 is passed through the cushion block 500 and the connecting hole 122. The fastener 600 is configured as a bolt, and the head of the fastener 600 is located above the cushion block 500. The connecting hole 122 is a screw hole.

[0062] In this embodiment, referring to Figure 1 The blade fork member 120 is bent so that the height of one end thereof is greater than the height of the other end.

[0063] Through the above structure, the fan blade 200 connected to the other end of the blade fork member 120 can be brought closer to the lower disk, so that the structure of the invisible fan can be compact.

[0064] In some embodiments, reference Figures 5 to 7 A connecting portion 130 is provided between two adjacent blade fork members 120 along the circumferential direction of the rotating disk 110 . The rotating disk 110 , the blade fork members 120 and the connecting portion 130 are an integral injection-molded structure.

[0065] Through the above structure, the rotating disk 110, the blade fork 120 and the connecting portion 130 are integrally injection-molded, that is, the rotating frame 100 is integrally injection-molded, so the production efficiency of the rotating frame 100 is accelerated, thereby accelerating the production efficiency of the invisible fan.

[0066] The present invention also provides a stealth fan lamp, which includes the stealth fan. Through the above structure, the production cost can be reduced and the noise generated when the fan blades rotate can be reduced.

[0067] Of course, the present invention is not limited to the above-mentioned embodiments. Those skilled in the art may make equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications and substitutions are all included in the scope defined by the claims of this application.

Claims

1. An invisible fan, characterized in that: include a rotating frame (100); A fan blade (200) is provided with a connecting end portion (210), wherein the connecting end portion (210) is rotatably connected to the rotating frame (100), and at least two fan blades (200) are provided, and at least two connecting end portions (210) are provided along the circumference of the rotating frame (100); a connecting rod (300), wherein at least one connecting rod (300) is rotatably connected between two adjacent connecting end portions (210) along the circumferential direction of the rotating frame (100); The elastic member (400) is provided in at least two pieces, and the at least two elastic members (400) are provided in a one-to-one correspondence at at least two connecting end portions (210), and the elastic member (400) is connected to the rotating frame (100), wherein: The rotating frame (100) is capable of rotating to drive at least two of the fan blades (200) to rotate and unfold synchronously through the connecting rod (300). When the rotating frame (100) stops rotating, the elastic member (400) can drive at least two of the fan blades (200) to rotate and retract synchronously under the action of the connecting rod (300).

2. The invisible fan according to claim 1, characterized in that: The connecting end portion (210) is provided with a first connecting column (211) and a second connecting column (212); one end of the connecting rod (300) between two adjacent connecting end portions (210) along the circumference of the rotating frame (100) is rotatably mounted on the first connecting column (211) of one of the connecting end portions (210), and the other end is rotatably mounted on the second connecting column (212) of the other connecting end portion (210).

3. The invisible fan according to claim 2, characterized in that: The angle between the first connecting column (211) and the second connecting column (212) on the same connecting end (210) and the lines connecting them to the rotation axis of the same connecting end (210) is A, wherein 80°≤A≤140°.

4. The invisible fan according to claim 1, characterized in that: One of the rotating frame (100) and the connecting end (210) is provided with a protrusion (121), and the other is provided with two limiting blocks (213), and the limiting blocks (213) can abut against the protrusion (121) to limit the rotatable angle of the fan blade (200).

5. The invisible fan according to claim 1, characterized in that: The connecting rod (300) is provided with a first rod segment (310), a second rod segment (320), and a third rod segment (330) connected in sequence, the first rod segment (310) and the third rod segment (330) are parallel to each other, the angle between the first rod segment (310) and the second rod segment (320) is B, and the angle between the second rod segment (320) and the third rod segment (330) is C, wherein B=C, and both B and C are obtuse angles.

6. The invisible fan according to claim 1, characterized in that: The rotating frame (100) comprises: Rotating disk (110); The blade fork member (120) is provided in at least two pieces, one end of the blade fork member (120) is connected to the rotating disk (110), at least two of the blade fork members (120) are provided along the circumference of the rotating disk (110), at least two of the connecting end portions (210) are rotatably connected to the other ends of the at least two blade fork members (120) in a one-to-one correspondence, and at least two of the elastic members (400) are connected to the other ends of the at least two blade fork members (120) in a one-to-one correspondence.

7. The invisible fan according to claim 6, characterized in that: The blade fork member (120) is bent so that the height of one end thereof is greater than the height of the other end.

8. The invisible fan according to claim 6, characterized in that: A connecting portion (130) is provided between two adjacent blade fork members (120) along the circumferential direction of the rotating disk (110); the rotating disk (110), the blade fork members (120) and the connecting portion (130) are an integrally formed structure.

9. The invisible fan according to claim 1, characterized in that: The number of the fan blades (200), the connecting rods (300), and the elastic members (400) is set to three.

10. Invisible fan light, characterized by: The invention comprises an invisible fan as claimed in any one of claims 1 to 9.

Images