Ceiling fan with controllable double-layer fan blades

Abstract

The utility model provides a controllable ceiling fan with double layers of fan blades. The outer rotor motor and the inner rotor motor of the ceiling fan are both electrically connected with the controller and are configured to be independently controlled, so that the large fan blade assembly and the small fan blade assembly can be simultaneously rotated for use or independently rotated for use, when the large fan blade assembly and the small fan blade assembly are simultaneously rotated for use, wide-range air can be formed below the ceiling fan, and the center below the ceiling fan can feel the air volume; independent rotation is adopted, so that waste is avoided during use; furthermore, the ceiling fan is further provided with lighting modules which are used at the same time or independently, the lighting modules are lamp strips, a net cover used for protecting the small fan blade assemblies is arranged below the ceiling fan, and the ceiling fan has the advantages of being diversified in function and easy to use.

Description

[Technical field]

[0001] The utility model relates to the technical field of fans, in particular to a ceiling fan with controllable double-layer fan blades. [Background technology]

[0002] As a fan device, ceiling fans are an indispensable item for cooling down in the hot summer. Ceiling fans generally use an outer rotor motor with a stator with winding coils inside and a magnetic rotor outside. This type of outer rotor motor has high torque and can drive large-sized fan blades. Because the fan blades are larger, the wind range formed when the large fan blades rotate is relatively wide.

[0003] However, the current ceiling fans have the following technical problems in actual use: first, the air volume that can be felt below the center of the ceiling fan is smaller than the air volume directly below the fan blades; second, when only the air volume below the center of the ceiling fan needs to be provided, the above-mentioned outer rotor motor ceiling fan cannot meet this requirement; third, a double-layer ceiling fan cannot start or shut down one layer of the ceiling fan separately, but can only start or shut down the two layers of the ceiling fan at the same time, resulting in waste in use.

[0004] Therefore, there is still much room for improvement in current ceiling fans. [Summary of the invention]

[0005] In view of the deficiencies of the above-mentioned prior art, the utility model provides a ceiling fan with controllable double-layer fan blades. The outer rotor motor and the inner rotor motor of the ceiling fan are electrically connected to the controller, and are configured to be independently controlled so that the large fan blade assembly and the small fan blade assembly can be rotated and used simultaneously or individually. A relatively wide range of wind can be formed below the ceiling fan, and the wind volume can be felt at the center below the ceiling fan, without causing waste during use.

[0006] The utility model achieves the above-mentioned purpose as follows: a ceiling fan with controllable double-layer fan blades, a controller connected to an external power supply, including a suspension rod, an outer rotor motor and an inner rotor motor, the outer rotor motor including a stator shaft and an outer rotor, the lower end of the suspension rod is relatively fixedly connected to the stator shaft, the outer rotor is rotatably connected to the stator shaft, and a large fan blade assembly is connected to the outer rotor; the inner rotor motor includes a stator assembly and a rotor shaft, the rotor shaft is rotatably connected to the stator assembly, the lower end of the stator shaft is directly or indirectly relatively fixedly connected to the stator assembly, the outer end of the rotor shaft is connected to a small fan blade assembly, and the large fan blade assembly and the small fan blade assembly are respectively arranged concentrically in an upper and lower structure; the outer rotor motor and the inner rotor motor are both electrically connected to the controller, and are configured to be independently controlled so that the large fan blade assembly and the small fan blade assembly can be rotated and used simultaneously or separately.

[0007] As described above, a controllable ceiling fan with double-layer fan blades, the lower end of the stator shaft is directly or indirectly fixedly connected to a lighting module electrically connected to a controller, and is configured to be independently controlled by the controller.

[0008] As described above, a controllable ceiling fan with double-layer fan blades, the large fan blade assembly includes a plurality of large fan blade leaves and a quick connection fork provided at the root of the large fan blade leaves; the quick connection fork is arranged in a U-shaped structure, and is composed of a connecting part for wrapping the side surface of the outer rotor, a first mounting part located above the connecting part and cooperatively connected with the upper end surface of the outer rotor, and a second mounting part located below the connecting part and cooperatively connected with the lower end surface of the outer rotor; the upper end surface of the outer rotor includes a plurality of upper end parts for the first mounting part to fork into and be clamped, and the lower end surface of the outer rotor includes a plurality of lower end parts for the second mounting part to fork into and be clamped.

[0009] As described above, a controllable ceiling fan with double-layer fan blades, the first mounting part and the second mounting part are in a fan-shaped ring structure; the ends of two adjacent quick connection forks clamped on the outer rotor motor are in mutual contact.

[0010] As described above, a controllable ceiling fan with double-layer fan blades, the outer rotor and the quick connection fork are relatively fixedly connected by bolts, the first mounting part and the second mounting part of the quick connection fork are provided with positioning holes for the bolts to pass through, and both the upper end part and the lower end part of the outer rotor are provided with threaded connection holes corresponding to the positioning holes and cooperatively connected with the bolts passing through the positioning holes.

[0011] As described above, a controllable ceiling fan with double-layer fan blades, along the width direction of the large fan blade leaf, it includes a horizontally arranged horizontal blade part and a bent blade part bent relative to the horizontal blade part.

[0012] As described above, a controllable ceiling fan with double-layer fan blades, the lower end of the stator shaft is connected with a connecting piece, the connecting piece includes an upper connecting piece fixedly connected in advance with the lower end of the stator shaft and a lower connecting piece quickly and cooperatively fixedly connected with the upper connecting piece, and the lower end of the lower connecting piece is relatively fixedly connected with the stator assembly of the inner rotor motor.

[0013] As described above, a controllable ceiling fan with double-layer fan blades, the side of the lower connecting piece is connected with a plurality of connecting rods, one end of the connecting rod is relatively fixedly connected with the lower connecting piece, and the other end of the connecting rod is connected with a circular fixing ring, the circular fixing ring is arranged below the large fan blade assembly, and the lighting module is a light strip arranged on the circular fixing ring.

[0014] As described above, a controllable ceiling fan with double-layer fan blades, the upper connecting piece and the lower connecting piece are fixedly connected by a fixing piece, the side of the upper connecting piece is provided with a threaded hole for cooperating with a bolt, and the side of the lower connecting piece is provided with a guiding hole corresponding to the threaded hole.

[0015] In the ceiling fan with controllable double-layered blades as described above, the circular fixing ring is fixedly connected with a mesh cover for protecting the small blade assembly and arranged below the circular fixing ring.

[0016] Compared with the prior art, the utility model has the following advantages:

[0017] 1. The utility model provides a ceiling fan with controllable double-layer blades, which has a compact and reasonable structure. It makes full use of the outer rotor motor and the inner rotor motor, which are both electrically connected to the controller, and are configured to be independently controlled so that the large blade assembly and the small blade assembly can be rotated and used at the same time or separately to form a wind that can cover a small area in the center below the ceiling fan. In this way, the wind formed when the ceiling fan is working can cover the center and the outside of the ceiling fan at the same time, thereby improving the user experience.

[0018] 2. The ceiling fan is also provided with a lighting module electrically connected to the controller. The lighting module is a light strip that can be used for lighting alone or can be used when the large fan blade assembly and / or the small fan blade assembly is rotated.

[0019] 3. The ceiling fan is equipped with a protective cover to protect the fan blades to prevent foreign objects from entering the rotating range and damaging the fan blades when the fan blades rotate.

[0020] 4. The utility model can divide the ceiling fan into an upper and lower layer structure for installation. The upper layer has an upper connecting piece, and the lower layer has a lower connecting piece. The components of the ceiling fan are disassembled and transported at the factory, and are divided into the upper and lower layers during installation. It is more convenient to assemble the ceiling fan in layers.

Brief Description of the Drawings

[0021] Figure 1 It is a front view of the utility model;

[0022] Figure 2 This is a schematic diagram of the connection between the quick connection fork and the outer rotor of the utility model;

[0023] Figure 3 It is a three-dimensional diagram of the utility model;

[0024] Figure 4 This is one of the schematic diagrams of the large fan blade assembly structure of the utility model;

[0025] Figure 5 This is the second schematic diagram of the structure of the large fan blade assembly of the utility model;

[0026] Figure 6 yes Figure 5 A magnified schematic diagram;

[0027] Figure 7 It is a three-dimensional diagram of the first embodiment of the utility model;

[0028] Figure 8 This is a schematic diagram of the structure separation of the first embodiment of the utility model;

[0029] Fig. 9 It is a three-dimensional diagram of the second embodiment of the utility model;

[0030] Fig.10 It is an explosion diagram of the second embodiment of the utility model. [Specific implementation method]

[0031] The following is combined with Figure 1-10 The utility model is further described as follows:

[0032] In order to facilitate the viewing and understanding of the structure of the outer rotor motor 2, part of the large fan blade assembly 4 is hidden and the large fan blades 41 are trimmed, such as Figure 1 As shown, a ceiling fan with controllable double-layer blades has a controller connected to an external power supply, including a suspension rod 1, an outer rotor motor 2 and an inner rotor motor 3, the outer rotor motor 2 including a stator shaft 21 and an outer rotor 22, the lower end of the suspension rod 1 is relatively fixedly connected to the stator shaft 21, the outer rotor 22 is rotatably connected to the stator shaft 21, and a large blade assembly 4 is connected to the outer rotor 22; the inner rotor motor 3 includes a stator assembly 31 and a rotor shaft 32, the rotor shaft 32 is rotatably connected to the stator assembly 31, the lower end of the stator shaft 21 is directly or indirectly relatively fixedly connected to the stator assembly 31, the outer end of the rotor shaft 32 is connected to a small blade assembly 5, the large blade assembly 4 and the small blade assembly 5 are respectively arranged concentrically in an upper and lower structure; the outer rotor motor 2 and the inner rotor motor 3 are both electrically connected to the controller, and are configured to be independently controlled so that the large blade assembly 3 and the small blade assembly 5 can be rotated and used simultaneously or separately.

[0033] like Figure 1 , Figure 2As shown, the large fan blade assembly 4 includes a plurality of large fan blades 41 and a quick connection fork 42 provided at the root of the large fan blades 41; the quick connection fork 42 is arranged in a U-shaped structure, and is composed of a connecting portion 421 for wrapping the side surface of the outer rotor 22, a first mounting portion 422 located above the connecting portion 421 and matingly connected to the upper end surface of the outer rotor 22, and a second mounting portion 423 located below the connecting portion 421 and matingly connected to the lower end surface of the outer rotor 22. The large fan blades 41 are provided on the other side of the open side of the U-shaped structure; the upper end surface of the outer rotor 22 includes a plurality of upper end portions 221 for the first mounting portion 422 to fork into and be snap-connected, and the lower end surface of the outer rotor 22 includes a plurality of lower end portions 222 forked and snap-connected with the second mounting portion 423. After the quick connection fork 42 of the large fan blade assembly 4 is abutted and fitted with both ends of the outer rotor 22, when both hands are released, under the action of gravity, the large fan blades 41 tend to move downward, driving the quick connection fork 42 to also incline downward. Under the lever action, the quick connection fork 42 can be snap-connected with both ends of the outer rotor 22, and subsequently, the relative fixed connection between the large fan blade assembly 4 and the outer rotor 22 can be completed with one hand.

[0034] To further relatively fix the large fan blade assembly 4 and the outer rotor 22, the outer rotor 22 and the quick connection fork 42 are relatively fixedly connected by bolts 43. The first mounting portion 422 and the second mounting portion 423 of the quick connection fork 42 are provided with positioning holes 424 for the bolts 43 to pass through. The upper end portion 221 and the lower end portion 222 of the outer rotor are both provided with threaded connection holes 223 corresponding to the positioning holes 424 and matingly connected with the bolts 43 passing through the positioning holes 424, the lower end portion 222 and the threaded connection holes 223 of the lower end portion 222.

[0035] As Figure 3 、 Figure 4 As shown, the first mounting portion 422 and the second mounting portion 423 are in a fan-shaped ring structure; the ends of two adjacent quick connection forks 42 clamped on the outer rotor motor 2 abut against each other. Since the large fan blade assemblies 4 are all mounted on the outer rotor 22, the quick connection forks 42 wrap the outside of the outer rotor 22, making the large fan blade assemblies 4 on the outer rotor motor 2 more compact, having a dust-proof and waterproof function, that is, protecting the outer rotor motor 2; while protecting the outer rotor motor 2, it also improves the aesthetics of the ceiling fan.

[0036] As Figure 4 、 Figure 5 、 Figure 6 As shown, here is a special note. Figure 5The view is a view of a horizontally placed large fan blade 41 looking from the tail end of the large fan blade 41 to the root of the large fan blade 41, thereby including a horizontal blade portion 411 and a bent blade portion 412 bent relative to the horizontal blade portion 411 along the width direction of the large fan blade 41. The large fan blade 41 is provided with a horizontal blade portion 411 and a bent blade portion 412 bent relative to the horizontal blade portion 411, and the bent blade portion is at an angle α relative to the horizontal line, which can lower the center of gravity of the ceiling fan and make the structure more compact.

[0037] Furthermore, if Figure 7 , Figure 8 As shown, the lower end of the stator shaft 21 is connected to a connecting member 8, and the connecting member 8 includes an upper connecting member 81 pre-fixedly connected to the lower end of the stator shaft 21 and a lower connecting member 82 fastened and fixedly connected to the upper connecting member 81, and the lower end of the lower connecting member 82 is relatively fixedly connected to the stator assembly 31 of the inner rotor motor 3.

[0038] Embodiment 1: Further, a plurality of connecting rods 83 are connected to the side of the lower connecting member 82, one end of the connecting rod 83 is relatively fixedly connected to the lower connecting member 82, and the other end of the connecting rod 83 is connected to a circular fixing ring 7, and the circular fixing ring 7 is arranged below the large fan blade assembly 4. Further, the lower end of the stator shaft 21 is directly or indirectly fixedly connected to a lighting module 6 electrically connected to the controller, and is configured to be independently controlled by the controller. The connecting rod 83 has a built-in transmission wire to electrically connect the controller to the lighting module 6, and the lighting module 6 is a light strip arranged on the circular fixing ring 7, so that the ceiling fan has a lighting function.

[0039] Embodiment 2: Based on Embodiment 1, further, as Figure 8 and 9 As shown, the circular fixing ring 7 is fixedly connected with a mesh cover 9 for protecting the small fan blade assembly 5 and arranged below the circular fixing ring 7. Figure 8 As shown, the utility model can divide the ceiling fan into an upper and lower layer structure for installation, the upper layer includes an assembled suspension rod 1, an outer rotor motor 2, a large fan blade assembly 4, and an upper connecting member 81 fixedly connected to the lower end of the stator shaft 21 of the outer rotor motor 2, and the upper layer includes an assembled inner rotor motor 3, a lower connecting member 82 fixedly connected to the stator assembly 31, a small fan blade assembly 5, etc. The upper layer of the ceiling fan is fixed to the ceiling, and then the lower connecting member 82 of the lower layer is matched and connected with the upper connecting member 81. It should be noted that the upper connecting member 81 is in the inner layer and the lower connecting member 82 is in the outer layer, and then the upper connecting member 81 and the lower connecting member 82 are fixedly connected by a fixing member 84.

[0040] like Fig.10As shown, the upper connecting member 81 and the lower connecting member 82 are fixedly connected by a fixing member 84. Specifically, the fixing member 84 is a bolt. The side of the upper connecting member 81 is provided with a threaded hole 811 that cooperates with the bolt, and the side of the lower connecting member 82 is provided with a guide hole 821 corresponding to the threaded hole 811. The bolt enters the guide hole 821 and the threaded hole 811 in turn to match and fix the lower connecting member 82 with the upper connecting member 81.

[0041] The small fan blade assembly 5 includes a connecting seat 51 through which the rotor shaft 32 passes and a plurality of special-shaped small fan blades 52 are evenly arranged along the circumference of the connecting seat 51. A limit pin 321 for limiting the installation position of the small fan blade assembly 5 is inserted at the outer end of the rotor shaft 32. A limit groove 511 cooperating with the limit pin 321 is provided at the upper end of the connecting seat 51. The limit pin 321 cooperates with the limit groove 511 so that the rotation of the rotor shaft 32 drives the small fan blade assembly 5 to rotate, that is, the small fan blade assembly 5 is driven to rotate. The lower end of the small fan blade assembly 5 is provided with a fastener 53 that relatively fixes the small fan blade assembly 5 to the rotor shaft 32, and the interior has an internal thread, which is not shown in the figure. The outer end of the rotor shaft 32 is provided with an external thread 322 cooperating with the internal thread of the fastener 53.

Claims

1. A ceiling fan with double-layered blades and a controller connected to an external power supply, characterized in that: It includes a suspension rod (1), an outer rotor motor (2) and an inner rotor motor (3). The outer rotor motor (2) includes a stator shaft (21) and an outer rotor (22). The lower end of the suspension rod (1) is relatively fixedly connected to the stator shaft (21). The outer rotor (22) is rotatably connected to the stator shaft (21), and a large fan blade assembly (4) is connected to the outer rotor (22). The inner rotor motor (3) includes a stator assembly (31) and a rotor shaft (32). The rotor shaft (32) is rotatably connected to the stator assembly (31). The lower end of the stator shaft (21) is directly or indirectly relatively fixedly connected to the stator assembly (31). A small fan blade assembly (5) is connected to the outer end of the rotor shaft (32). The large fan blade assembly (4) and the small fan blade assembly (5) are concentrically arranged in an upper and lower structure correspondingly. Both the outer rotor motor (2) and the inner rotor motor (3) are electrically connected to a controller and are configured to be independently controlled so that the large fan blade assembly (4) and the small fan blade assembly (5) can be rotated and used simultaneously or separately.

2. A ceiling fan with controllable double-layered blades according to claim 1, characterized in that: The lower end of the stator shaft (21) is directly or indirectly fixedly connected to a lighting module (6) that is electrically connected to the controller and is configured to be independently controlled by the controller.

3. A ceiling fan with controllable double-layered blades according to claim 1, characterized in that: The large fan blade assembly (4) includes a plurality of large fan blade blades (41) and a quick connection fork (42) provided at the root of the large fan blade blades (41). The quick connection fork (42) is arranged in a U-shaped structure and is composed of a connecting portion (421) for wrapping the side surface of the outer rotor (22), a first mounting portion (422) located above the connecting portion (421) and matingly connected to the upper end surface of the outer rotor (22), and a second mounting portion (423) located below the connecting portion (421) and matingly connected to the lower end surface of the outer rotor (22). The upper end surface of the outer rotor (22) includes a plurality of upper end portions (221) for the first mounting portion (422) to fork into and be clamped, and the lower end surface of the outer rotor (22) includes a plurality of lower end portions (222) forked into and clamped with the second mounting portion (423).

4. A ceiling fan with controllable double-layered blades according to claim 3, characterized in that: The first mounting portion (422) and the second mounting portion (423) are in a fan-shaped ring structure; the ends of two adjacent quick connection forks (42) clamped to the outer rotor motor (2) are in mutual contact.

5. A ceiling fan with controllable double-layered blades according to claim 4, characterized in that: The outer rotor (22) and the quick connection fork (42) are relatively fixedly connected by bolts (43). The first mounting portion (422) and the second mounting portion (423) of the quick connection fork (42) are provided with positioning holes (424) for the bolts (43) to pass through. Both the upper end portion (221) and the lower end portion (222) of the outer rotor are provided with threaded connection holes (223) corresponding to the positioning holes (424) and matingly connected with the bolts (43) passing through the positioning holes (424).

6. A ceiling fan with controllable double-layered blades according to claim 3, characterized in that: Along the width direction of the large fan blade blade (41), it includes a horizontally arranged horizontal blade portion (411) and a bent blade portion (412) bent relative to the horizontal blade portion (411).

7. A ceiling fan with controllable double-layered blades according to claim 2, characterized in that: The lower end of the stator shaft (21) is connected to a connecting piece (8), the connecting piece (8) comprising an upper connecting piece (81) pre-fixedly connected to the lower end of the stator shaft (21) and a lower connecting piece (82) fastened and fixedly connected to the upper connecting piece (81), the lower end of the lower connecting piece (82) being relatively fixedly connected to the stator assembly (31) of the inner rotor motor (3).

8. A ceiling fan with controllable double-layered blades according to claim 7, characterized in that: The side of the lower connecting member (82) is connected to a plurality of connecting rods (83), one end of the connecting rod (83) is relatively fixedly connected to the lower connecting member (82), and the other end of the connecting rod (83) is connected to a circular fixing ring (7), the circular fixing ring (7) is arranged below the large fan blade assembly (4), and the lighting module (6) is a light strip arranged on the circular fixing ring (7).

9. The ceiling fan with controllable double-layered blades according to claim 7, characterized in that: The upper connecting member (81) and the lower connecting member (82) are fixedly connected via a fixing member (84); a threaded hole (811) matching with a bolt is provided on a side surface of the upper connecting member (81); and a guide hole (821) corresponding to the threaded hole (811) is provided on a side surface of the lower connecting member (82).

10. A ceiling fan with controllable double-layered blades according to claim 8, characterized in that: The circular fixing ring (7) is fixedly connected to a mesh cover (9) for protecting the small fan blade assembly (5) and arranged below the circular fixing ring (7).

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