Double-rotor fan lamp based on torque self-counteracting and turbulent flow generation

Abstract

The invention discloses a double-rotor fan lamp based on torque self-counteracting and turbulent flow generation, which adopts a double-motor driving mode to respectively drive an upper-layer fan blade and a lower-layer fan blade to coaxially rotate in opposite directions, so that the torque directions of the upper and lower fan blades are opposite and counteract each other, and the fan lamp is more stable in operation, lower in noise and longer in service life; meanwhile, the blade attack angle of the upper-layer fan blade is opposite to the blade attack angle of the lower-layer fan blade, so that the upper-layer fan blade and the lower-layer fan blade have the same blowing direction during rotation, and airflow which is pressed downwards in the same direction is mutually sheared and collided at the intersection, so that the original ordered airflow is disrupted, large-area and soft turbulent flow is generated, and the generated turbulent flow is closer to natural wind in wind feeling; direct blowing of hard wind of a traditional fan is avoided, and the comfort degree of a human body is remarkably improved; turbulent flow caused by the double-rotor fan lamp can efficiently stir air in a room, and more uniform temperature distribution and ventilation effects are achieved.

Description

Technical Field

[0001] This invention relates to the field of fan light technology, and in particular to a dual-rotor fan light based on torque self-cancellation and turbulence generation. Background Technology

[0002] As a composite home product integrating lighting and air circulation functions, fan lights are favored by the market due to their space-saving and practical functions. Traditional single-blade fan lights generate huge counter-torque when rotating at high speed. This counter-torque is transmitted to the hanging rod and ceiling fixing structure through the motor housing, causing the hanging rod to sway under stress, generating noise and affecting the structural lifespan. In addition, the wind generated by traditional single-blade fan lights rotating in one direction is a regular and concentrated "columnar wind". It is uncomfortable to be blown by for a long time, unlike the gentle and diffused (turbulent) natural wind. The wind feels relatively harsh, resulting in a poor user experience. Summary of the Invention

[0003] The purpose of this invention is to provide a dual-rotor fan light based on torque self-cancellation and turbulence generation, which solves the problem of how to generate a gentle turbulence that is closer to natural wind without causing the light body to shake, while maintaining the effective coverage of the wind force.

[0004] The present invention provides the following technical solution: a dual-rotor fan lamp based on torque self-cancellation and turbulence generation, including a top base, a suspension rod connected to the top base, an upper fan blade assembly, a lower fan blade assembly, and a lamp body assembly disposed on the suspension rod. The upper fan blade assembly includes an upper fan blade and a first motor that drives the upper fan blade to rotate. The lower fan blade assembly includes a lower fan blade and a second motor that drives the lower fan blade to rotate. The upper fan blade has a plurality of first blades evenly distributed around its axis, and the lower fan blade has a plurality of second blades evenly distributed around its axis. The angles of attack of the first blades and the second blades are set opposite to each other, and the first motor and the second motor are coaxially arranged in opposite directions, so that the upper fan blade and the lower fan blade are coaxially arranged in opposite directions.

[0005] As described above, in the dual-rotor fan lamp based on torque self-cancellation and turbulence generation, the first motor drives the upper fan blades to rotate clockwise, and the angle of attack of the first blades is 7° to 17°.

[0006] As described above, in the dual-rotor fan lamp based on torque self-cancellation and turbulence generation, the second motor drives the lower fan blades to rotate counterclockwise, and the angle of attack of the first blade is 163° to 173°.

[0007] As described above, in the dual-rotor fan lamp based on torque self-cancellation and turbulence generation, the upper fan blade, the first motor, the lower fan blade, and the second motor are coaxially sleeved on the suspension rod, with the first motor and the second motor located between the upper fan blade and the lower fan blade.

[0008] As described above, in the dual-rotor fan light based on torque self-cancellation and turbulence generation, the first motor includes a first stator, a first coil, a first rotor, and a first bearing; the second motor includes a second stator, a second coil, a second rotor, and a second bearing. The first stator and the second stator are fixed to the hanger rod. The first coil is located on the periphery of the first stator, and the second coil is located on the periphery of the second stator. The first rotor wraps around the first stator and the first coil, and the second rotor wraps around the second stator and the second coil. The first bearing is located between the first rotor and the hanger rod, and the second bearing is located between the second rotor and the hanger rod.

[0009] As described above, in the dual-rotor fan lamp based on torque self-cancellation and turbulence generation, the bottom surface of the first rotor and the top surface of the second rotor are both planar, and the bottom surface of the first rotor is close to the top surface of the second rotor.

[0010] As described above, in the dual-rotor fan lamp based on torque self-cancellation and turbulence generation, the bottom surfaces of the first rotor and the second rotor are separated.

[0011] As described above, in the dual-rotor fan lamp based on torque self-cancellation and turbulence generation, the first blade is composed of three evenly distributed blades, and the second blade is composed of three evenly distributed blades.

[0012] As described above, the dual-rotor fan lamp based on torque self-cancellation and turbulence generation includes a lamp body assembly comprising a chandelier body and connecting wires. The chandelier body is fixed to the end of the hanging rod away from the top base, and the connecting wires are housed inside the hanging rod and electrically connected to the chandelier body.

[0013] As described above, the dual-rotor fan light based on torque self-cancellation and turbulence generation includes a top base comprising a cover and a ceiling bracket. The ceiling bracket is U-shaped and connected to the hanging rod. The top base is fitted around the periphery of the ceiling bracket and conforms to the wall.

[0014] Compared with the prior art, the present invention has the following advantages: 1. The dual rotor fan light of the present invention has an extremely stable effect when in operation. Since the torque directions of the upper and lower fan blades are opposite and cancel each other out, the fan light body can hardly feel the net torque, the operation is extremely smooth, the noise is lower and the life is longer. 2. The wind blown by the dual rotor fan lamp of the present invention has a more comfortable wind feel. The angle of attack of the first blade and the second blade are set in opposite directions, so that the airflow generated by the opposite rotation of the upper fan blade and the lower fan blade and the downward airflow are sheared and collided with each other at the intersection, thereby disrupting the originally orderly airflow and generating a large area of ​​gentle turbulence. The generated turbulent wind feel is closer to natural wind, avoiding the "hard wind" of traditional fans, and significantly improving comfort. 3. The turbulence generated by the dual-rotor fan lamp of the present invention can efficiently stir the air in the room, achieve a more uniform temperature distribution and ventilation effect, and avoid the problem that the concentrated air force area of ​​traditional fans can easily cause discomfort to the human body. Attached Figure Description

[0015] Figure 1 This is a partial three-dimensional cross-sectional view of the dual-rotor fan lamp of Embodiment 1 of the present invention.

[0016] Figure 2 This is a partial front view schematic diagram of the dual rotor fan lamp of Embodiment 1 of the present invention.

[0017] Figure 3 This is a three-dimensional schematic diagram of the dual-rotor fan lamp of Embodiment 1 of the present invention.

[0018] Figure 4 This is a three-dimensional schematic diagram of the dual-rotor fan lamp of Embodiment 2 of the present invention.

[0019] Explanation of reference numerals in the attached drawings: 1. Top base; 2. Hanging rod; 3. Upper fan blade assembly; 4. Lower fan blade assembly; 5. Lamp body assembly; 11. Base cover; 12. Ceiling bracket; 31. Upper fan blade; 32. First motor; 41. Lower fan blade; 42. Second motor; 51. Chandelier body; 52. Connecting wire; 311. First blade; 321. First stator; 322. First coil; 323. First rotor; 411. Second blade; 421. Second stator; 422. Second coil; 423. Second rotor. Detailed Implementation

[0020] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present invention.

[0021] Example 1: Please refer to the appendix Figure 1 To be continued Figure 3This embodiment provides a dual-rotor fan lamp based on torque self-cancellation and turbulence generation, including a top base 1, a suspension rod 2 connected to the top base 1, an upper fan blade assembly 3, a lower fan blade assembly 4, and a lamp body assembly 5 disposed on the suspension rod 2. The upper fan blade assembly 3 includes an upper fan blade 31 and a first motor 32 that drives the upper fan blade 31 to rotate. The lower fan blade assembly 4 includes a lower fan blade 41 and a second motor 42 that drives the lower fan blade 41 to rotate. Multiple first blades 311 are evenly distributed around the axis on the upper fan blade 31, and multiple second blades 411 are evenly distributed around the axis on the lower fan blade 41. The angles of attack of the first blades 311 and the second blades 411 are set opposite to each other, and the first motor 32 and the second motor 42 are coaxially rotated in opposite directions, so that the upper fan blade 31 and the lower fan blade 41 are coaxially rotated in opposite directions. The dual-rotor fan light of this embodiment exhibits extremely stable operation. Because the upper and lower blades have opposite torque directions, they cancel each other out, resulting in almost no net torque felt by the fan light body, leading to extremely smooth operation, lower noise, and a longer lifespan. Furthermore, the airflow from the dual-rotor fan light is more comfortable. The opposing angles of attack of the first blade 311 and the second blade 411 cause the downward-pressing airflow generated by the opposite rotation of the upper blade 31 and the lower blade 41 to shear and collide at the intersection, disrupting the originally orderly airflow and generating a large-area, gentle turbulence. This turbulent airflow is closer to natural wind, avoiding the harsh, direct wind of traditional fans and significantly improving comfort. Finally, the turbulence created by the dual-rotor fan light efficiently agitates the air in the room, achieving a more uniform temperature distribution and ventilation effect, avoiding the discomfort caused by concentrated airflow areas in traditional fans.

[0022] Preferably, the first motor 32 drives the upper fan blade 31 to rotate clockwise, and the angle of attack of the first blade 311 is 7° to 17°.

[0023] Preferably, the second motor 42 drives the lower fan blade 41 to rotate counterclockwise, and the angle of attack of the first blade 311 is 163° to 173°.

[0024] The upper fan blade 31, the first motor 32, the lower fan blade 41, and the second motor 42 are coaxially connected to the suspension rod 2, with the first motor 32 and the second motor 42 located between the upper fan blade 31 and the lower fan blade 41. A dual-motor structure with the first motor 32 and the second motor 42 is employed to precisely drive the two fan blades to rotate in opposite directions at the same or similar speeds. Besides using a dual-motor drive with dual rotors to rotate the two fan blades independently, a single motor paired with a planetary gear set can also be used to drive the two fan blades to rotate in opposite directions at the same or similar speeds.

[0025] The first motor 32 includes a first stator 321, a first coil 322, a first rotor 323, and a first bearing 324. The second motor 42 includes a second stator 421, a second coil 422, a second rotor 423, and a second bearing 424. The first stator 321 and the second stator 422 are fixed to the boom 2. The first coil 322 is located on the periphery of the first stator 321, and the second coil 422 is located on the periphery of the second stator 421. The first rotor 323 is wrapped around the first stator 321 and the first coil 322, and the second rotor 423 is wrapped around the second stator 421 and the second coil 422. The first bearing 324 is located between the first rotor 323 and the boom 2, and the second bearing 424 is located between the second rotor 423 and the boom 2.

[0026] The bottom surface of the first rotor 323 and the top surface of the second rotor 423 are both planar, and the bottom surface of the first rotor 323 is close to the top surface of the second rotor 423. This structural arrangement makes the dual-motor structure more compact in appearance.

[0027] Preferably, the first blade 311 is arranged in three evenly distributed pieces, and the second blade 411 is arranged in three evenly distributed pieces. This number of blades is the optimal design in terms of production cost and performance between the upper and lower fan blades.

[0028] The lamp body assembly 5 includes a chandelier body 51 and a connecting wire 52. The chandelier body 51 is fixed to the end of the hanging rod 2 away from the top base 1. The connecting wire 52 is stored inside the hanging rod 2 and electrically connected to the chandelier body 51. In addition to fixing the upper and lower dual motors, the hanging rod 2 also has the function of hiding the wire, which can prevent the connecting wire 52 from being exposed and affecting the overall aesthetics of the fan light.

[0029] The top seat 1 includes a seat cover 11 and a ceiling bracket 12. The ceiling bracket 12 is U-shaped and connected to the hanging rod 2. The top seat 1 is fitted around the periphery of the ceiling bracket 12 and fits against the wall to ensure the aesthetics of the top seat 1.

[0030] Example 2: Please refer to the appendix Figure 4 This embodiment provides a dual-rotor fan light based on torque self-cancellation and turbulence generation. The bottom surface of the first rotor 323 and the bottom surface of the second rotor 423 of the dual-rotor fan light are separated. The remaining structure is the same as the dual-rotor fan light in Embodiment 1. The dual-rotor fan light using this structure can also achieve the effect of extreme stability and comfortable wind.

[0031] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A dual-rotor fan lamp based on torque self-cancellation and turbulence generation, characterized in that: The assembly includes a top base (1), a suspension rod (2) connected to the top base (1), an upper fan blade assembly (3), a lower fan blade assembly (4), and a lamp body assembly (5) mounted on the suspension rod (2). The upper fan blade assembly (3) includes an upper fan blade (31) and a first motor (32) that drives the upper fan blade (31) to rotate. The lower fan blade assembly (4) includes a lower fan blade (41) and a second motor (42) that drives the lower fan blade (41) to rotate. The upper fan blade (31) has multiple first blades (311) evenly distributed around its axis, and the lower fan blade (41) has multiple second blades (411) evenly distributed around its axis. The angles of attack of the first blades (311) and the second blades (411) are opposite to each other, and the first motor (32) and the second motor (42) are coaxially rotated in opposite directions, so that the upper fan blade (31) and the lower fan blade (41) are coaxially rotated in opposite directions.

2. The dual-rotor fan lamp based on torque self-cancellation and turbulence generation according to claim 1, characterized in that: The first motor (32) drives the upper fan blade (31) to rotate clockwise, and the angle of attack of the first blade (311) is 7° to 17°.

3. The dual-rotor fan lamp based on torque self-cancellation and turbulence generation according to claim 1, characterized in that: The second motor (42) drives the lower fan blade (41) to rotate counterclockwise, and the angle of attack of the first blade (311) is 163° to 173°.

4. The dual-rotor fan lamp based on torque self-cancellation and turbulence generation according to claim 1, characterized in that: The upper fan blade (31), the first motor (32), the lower fan blade (41), and the second motor (42) are coaxially sleeved on the rod (2), with the first motor (32) and the second motor (42) located between the upper fan blade (31) and the lower fan blade (41).

5. The dual-rotor fan lamp based on torque self-cancellation and turbulence generation according to claim 4, characterized in that: The first motor (32) includes a first stator (321), a first coil (322), a first rotor (323), and a first bearing (324). The second motor (42) includes a second stator (421), a second coil (422), a second rotor (423), and a second bearing (424). The first stator (321) and the second stator (421) are fixed to the boom (2). The first coil (322) is located on the periphery of the first stator (321), and the second coil (422) is located on the periphery of the second stator (421). The first rotor (323) is wrapped around the first stator (321) and the first coil (322), and the second rotor (423) is wrapped around the second stator (421) and the second coil (422). The first bearing (324) is located between the first rotor (323) and the boom (2), and the second bearing (424) is located between the second rotor (423) and the boom (2).

6. The dual-rotor fan lamp based on torque self-cancellation and turbulence generation according to claim 5, characterized in that: The bottom surface of the first rotor (323) and the top surface of the second rotor (423) are both planar, and the bottom surface of the first rotor (323) is close to the top surface of the second rotor (423).

7. The dual-rotor fan lamp based on torque self-cancellation and turbulence generation according to claim 5, characterized in that: The bottom surface of the first rotor (323) and the bottom surface of the second rotor (423) are separated.

8. The dual-rotor fan lamp based on torque self-cancellation and turbulence generation according to claim 1, characterized in that: The first blade (311) consists of three blades evenly distributed, and the second blade (411) consists of three blades evenly distributed.

9. The dual-rotor fan lamp based on torque self-cancellation and turbulence generation according to claim 1, characterized in that: The lamp body assembly (5) includes a chandelier body (51) and a connecting wire (52). The chandelier body (51) is fixed to the end of the hanging rod (2) away from the top seat (1). The connecting wire (52) is housed inside the hanging rod (2) and electrically connected to the chandelier body (51).

10. The dual-rotor fan lamp based on torque self-cancellation and turbulence generation according to claim 1, characterized in that: The top seat (1) includes a seat cover (11) and a ceiling bracket (12). The ceiling bracket (12) is U-shaped and connected to the hanging rod (2). The top seat (1) is fitted around the periphery of the ceiling bracket (12) and fits against the wall.

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