阅读说明：本技术 风扇及风扇灯 (Fan and fan lamp ) 是由 姚晟 刘行安 王伟光 刘清明 于 2021-11-15 设计创作，主要内容包括：本发明提供了一种风扇及风扇灯,所述风扇通过对叶根曲线、叶梢曲线、前缘曲线以及后缘曲线进行创新设计,从而使得本发明风扇工作时不仅出风量大、吹风的扩散角度大,而且噪音较小,进而有效提升了用户的使用体验。(The invention provides a fan and a fan lamp, wherein the fan is characterized in that a blade root curve, a blade tip curve, a front edge curve and a rear edge curve are innovatively designed, so that the fan is large in air outlet quantity, large in blowing diffusion angle and small in noise when in work, and the use experience of a user is effectively improved.)

1. A fan, comprising:

a hub (10); and

at least 2 blades (20), said blades (20) being mounted on said hub (10) and arranged to rotate about a blade axis (201) of said fan; wherein the content of the first and second substances,

the projection length of a blade root curve (21) of the fan blade (20) on a fan blade axis (201) is 23.0a mm-25.0 a mm, and the projection length on a plane vertical to the fan blade axis (201) is 55.0a mm-59.0 a mm;

the projection length of a blade tip curve (22) of the fan blade (20) on a fan blade axis (201) is 44.0a mm-48.0 a mm, and the projection length on a plane vertical to the fan blade axis (201) is 160.0a mm-172.0 a mm;

the projection length of a leading edge curve (23) of the fan blade (20) on a fan blade axis (201) is 16.5a mm-18.5 a mm, and the projection length on a plane vertical to the fan blade axis (201) is 120.0a mm-124.0 a mm; and

the projection length of the trailing edge curve (24) of the fan blade (20) on the fan blade axis (201) is 20.0a mm-22.0 a mm, and the projection length on a plane vertical to the fan blade axis (201) is 129.0a mm-131.0 a mm; wherein a is a proportionality coefficient and is greater than 0.

2. The fan as claimed in claim 1, wherein: the thickness of the blade root of the fan blade (20) is 1.9a mm-3.5 a mm, and the thickness of the blade tip is 1.3a mm-1.8 a mm.

3. The fan as claimed in claim 1, wherein: the thickness of the fan blade (20) is gradually reduced from the front edge curve (23) to the rear edge curve (24).

4. The fan as claimed in claim 1, wherein: the thickness of the fan blade (20) is gradually increased from the blade tip curve (22) to the blade root curve (21).

5. The fan as claimed in claim 1, wherein: the outer diameter of the fan blade (20) is 297a mm-302 a mm.

6. The fan as claimed in claim 1, wherein: the blade root curve (21) of the fan blade (20) is located on the first side wall (12) of the hub (10), and the blade tip curve (22) is located on a cylindrical surface coaxial with the fan blade axis (201).

7. The fan as claimed in claim 1, wherein: the outer diameter of the hub (10) is 73.5a mm-76.5 a mm.

8. The fan as claimed in claim 1, wherein: the height of the hub (10) is not less than 30.0a mm.

9. The fan as claimed in claim 1, wherein: the number of the fan blades (20) is 3; the distance between projections of blade root curves (21) of two adjacent blades (20) on a plane perpendicular to the blade axis (201) is 19.0-23.0 a mm, and the distance between projections of blade tip curves (22) of two adjacent blades (20) on the plane perpendicular to the blade axis (201) is 127.0-141.0 a mm.

10. A fan lamp (100), comprising:

the fan according to any one of claims 1 to 9;

a light source assembly mounted within the fan lamp; and

the lamp shade (50), the lamp shade (50) includes the roof (51) and the second lateral wall (52), the roof (51), the second lateral wall (52) form and hold the cavity (53) in order to hold the said flabellum (20) at least partially; wherein, the distance between the second side wall (52) and the fan blade axis (201) is gradually increased from the position where the second side wall (52) is close to the top wall (51) to the position where the second side wall is far away from the top wall (51).

11. The fan lamp (100) of claim 10, wherein: the light source assembly is arranged on the top wall (51) and located in the lampshade (50), and the light emitting direction of the light source assembly is consistent with the airflow direction of the fan.

12. The fan lamp (100) of claim 10, wherein: the height of the lampshade (50) along the vertical direction is smaller than that of the fan blades (20) along the vertical direction.

13. The fan lamp (100) of claim 10, wherein: the lampshade (50) is annular, the second side wall (52) correspondingly surrounds the fan blades (20) in an annular mode, and the maximum outer diameter of the fan blades (20) in the horizontal direction is smaller than the minimum inner diameter of the second side wall (52).

14. The fan lamp (100) of claim 12, wherein: the second side wall (52) bends towards the direction far away from the fan blades (20), and the second side wall (52) is a free-form surface.

Technical Field

The present invention relates to a fan and a fan lamp, and more particularly, to a diffusion blowing type fan and a fan lamp.

Background

Along with the gradual improvement of the living standard of people, a fan with large air output, large air blowing angle and low noise is an urgent requirement of people. However, fans currently on the market blow air through circular blades. So, not only the air output is little, and the air-out angle is little moreover. Secondly, when the fan is operated, air comes into contact with the surface of the fan blades rotating at high speed, resulting in loud noise. Therefore, the existing fan brings poor use experience to users.

In view of the above problems, there is a need to provide a new fan blade to solve the above problems.

Disclosure of Invention

The invention aims to provide a fan, which not only has large air output and large air blowing diffusion angle but also has small noise when in work by innovatively designing a blade root curve, a blade tip curve, a front edge curve and a rear edge curve, thereby effectively improving the use experience of a user.

To achieve the above object, the present invention provides a fan comprising: a hub; and at least 2 fan blades mounted on the hub and arranged to rotate about a blade axis of the fan; the projection length of the blade root curve of the fan blade on the axis of the fan blade is 23.0 amm-25.0 a mm, and the projection length on a plane vertical to the axis of the fan blade is 55.0a mm-59.0 a mm; the projection length of the blade tip curve of the fan blade on the axis of the fan blade is 44.0a mm-48.0 a mm, and the projection length on the plane vertical to the axis of the fan blade is 160.0a mm-172.0 a mm; the projection length of the front edge curve of the fan blade on the axis of the fan blade is 16.5a mm-18.5 a mm, and the projection length on a plane vertical to the axis of the fan blade is 120.0a mm-124.0 a mm; the projection length of the trailing edge curve of the fan blade on the axis of the fan blade is 20.0 amm-22.0 a mm, and the projection length on a plane vertical to the axis of the fan blade is 129.0a mm-131.0 a mm; wherein a is a proportionality coefficient and is greater than 0.

As a further improvement of the invention, the thickness of the blade root of the fan blade is 1.9a mm-3.5 a mm, and the thickness of the blade tip is 1.3a mm-1.8 a mm.

As a further improvement of the invention, the thickness of the fan blade is gradually reduced from the front edge curve to the rear edge curve.

As a further improvement of the present invention, the thickness of the fan blade gradually increases from the blade tip curve to the blade root curve.

As a further improvement of the invention, the outer diameter of the fan blade is 297a mm-302 a mm.

As a further improvement of the present invention, the blade root curve of the fan blade is located on the first sidewall of the hub, and the blade tip curve is located on a cylindrical surface coaxial with the fan blade axis.

As a further improvement of the invention, the outer diameter of the hub is 73.5a mm-76.5 a mm.

As a further improvement of the invention, the height of the hub is not less than 30.0a mm.

As a further improvement of the present invention, the number of the fan blades is 3; the distance between the projections of the blade root curves of the two adjacent blades on the plane perpendicular to the blade axis is 19.0 amm-23.0 a mm, and the distance between the projections of the blade tip curves of the two adjacent blades on the plane perpendicular to the blade axis is 127.0a mm-141.0 a mm.

The present invention also provides a fan lamp, comprising: the aforementioned fan; a light source assembly mounted within the fan lamp; the lampshade comprises a top wall and a second side wall, and the top wall and the second side wall form an accommodating cavity for at least partially accommodating the fan blades; the distance between the second side wall and the fan blade axis is gradually increased from the position, close to the top wall, of the second side wall to the position far away from the top wall.

As a further improvement of the present invention, the light source assembly is disposed on the top wall and located in the lamp housing, and a light emitting direction of the light source assembly is consistent with an air flow direction of the fan.

As a further improvement of the present invention, the height of the lampshade along the vertical direction is smaller than the height of the fan blades along the vertical direction.

As a further improvement of the present invention, the lampshade is annular, the second sidewall is correspondingly annularly disposed around the fan blades, and a maximum outer diameter of the fan blades in the horizontal direction is smaller than a minimum inner diameter of the second sidewall.

As a further improvement of the present invention, the second sidewall is curved in a direction away from the fan blade, and the second sidewall is a free-form surface.

The invention has the beneficial effects that: the fan provided by the invention has the advantages that the blade root curve, the blade tip curve, the front edge curve and the rear edge curve are innovatively designed, so that the fan is large in air outlet quantity and large in air blowing diffusion angle and low in noise when in work, and the use experience of a user is effectively improved.

Drawings

Fig. 1 is a perspective view of a hub and blades according to an embodiment of the present invention.

Fig. 2 is a perspective view of the hub of fig. 1 after being engaged with a fan blade.

FIG. 3 is a schematic plan view of the hub and blades of FIG. 1.

Fig. 4 is a perspective view of a fan lamp according to another embodiment of the invention.

Fig. 5 is a sectional structural view of the fan lamp shown in fig. 4.

Fig. 6 is an exploded perspective view of the fan lamp shown in fig. 4.

Reference numerals:

100. a fan light;

10. a hub; 11. a bottom wall; 111. an aperture; 112. reinforcing ribs; 12. a first side wall; 13. mounting grooves;

20. a fan blade; 201. a fan blade axis; 21. a root curve; 22. leaf tip curve; 23. a leading edge curve; 24. a trailing edge curve;

30. a motor assembly; 31. a motor; 32. a fastener;

40. an electronic control assembly;

50. a lamp shade; 51. a top wall; 511. an air inlet; 52. a second side wall; 53. an accommodating chamber; 60. a ceiling assembly.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1, the present invention discloses a fan, which includes a hub 10 and fan blades 20 mounted on the hub 10. When the fan is operating, the fan blades 20 rotate about a blade axis 201. Of course, the fan may also include other mating components, such as motors, controllers, and the like. However, these are prior art and are not described herein.

Referring to fig. 2 and fig. 1, the hub 10 is cylindrical and includes a bottom wall 11 and a first side wall 12, and the bottom wall 11 and the first side wall 12 together enclose to form an installation groove 13. The bottom wall 11 is provided with a mounting hole 111 to be fitted with an output shaft of a motor. The bottom wall 11 is further provided with a reinforcing rib 112. One end of the reinforcing rib 112 is connected to the mounting hole 111, and the other end is connected to the first sidewall 12, thereby reinforcing the strength of the mounting hole 111.

Referring to fig. 1, 2 and 3, the fan blades 20 are fixedly mounted on the hub 10. The fan blades 20 may be in contact with the hub 10 or may not be in contact with the hub 10, and a gap exists between the fan blades 20 and the hub 10. The fan blades 20 may be fixedly mounted on the hub 10 by a fixing member, or may be integrally formed with the hub 10. The present invention is not limited to the fixing manner of fixing the fan blade 20 to the hub 10. In the present embodiment, the fan blades 20 are integrally formed with the hub 10. The fan blade 20 comprises a blade root curve 21, a blade tip curve 22 opposite the blade root curve 21, and a leading edge curve 23 and a trailing edge curve 24 between the blade root curve 21 and the blade tip curve 22. The blade root curve 21 is located on the first sidewall 12 of the hub 10, i.e.: the root curve 21 is a line where the fan blade 20 intersects the first sidewall 12 of the hub 10. Although in the present embodiment the root curve 21 is located on the first sidewall 12 of the hub 10, in other embodiments the root curve 21 may be located outside the first sidewall 12 of the hub 10. The projection length of the blade root curve 21 on the fan blade axis 201 is 23.0a mm-25.0 a mm, and the projection length on the plane perpendicular to the fan blade axis 201 is 55.0a mm-59.0 a mm. The projection length of the blade tip curve 22 on the blade axis 201 is 44.0a mm-48.0 a mm, and the projection length on the plane perpendicular to the blade axis 201 is 160.0 amm-172.0 a mm. The leading edge curve 23 is a curve located at the front end in the rotation direction of the fan blade 20. The projection length of the front edge curve 23 on the fan blade axis 201 is 16.5a mm-18.5 a mm, and the projection length on a plane perpendicular to the fan blade axis 201 is 120.0 amm-124.0 a mm. The trailing edge curve 24 is a curve located at the rear end in the rotation direction of the fan blade 20. The projection length of the trailing edge curve 24 on the fan blade axis 201 is 20.0a mm-22.0 a mm, and the projection length on a plane perpendicular to the fan blade axis 201 is 129.0 amm-131.0 a mm. Wherein a is a proportionality coefficient greater than 0. So set up, when flabellum 20 rotates, the air current is the torrent at the tip of flabellum 20, can effectively reduce the noise. Secondly, the curved surface structure of the fan blade 20 designed in this way can change the wind direction blown by the fan blade 20 from a focusing type to a diffusing type, thereby being beneficial to the blown wind to dissipate heat of peripheral electrical components and enhancing the heat dissipation effect of the peripheral electrical components. Compared with the prior art, the novel fan blade has the advantages that the blade root curve 21, the blade tip curve 22, the front edge curve 23 and the rear edge curve 24 are innovatively designed, so that the fan blade 20 is large in air output and large in air blowing diffusion angle and low in noise when working, and the use experience of a user is effectively improved.

Preferably, the thickness of the fan blade 20 gradually increases from the blade tip curve 22 to the blade root curve 21. With this arrangement, the amount of deformation of the fan blade 20 during operation can be reduced. Preferably, the thickness of the blade tip of the fan blade 20 is 1.3a mm to 1.8a mm, and the thickness of the blade root is 1.9a mm to 3.5a mm. By such an arrangement, the fan blade 20 has better strength and rigidity, and the weight of the fan blade 20 is lighter.

Preferably, the thickness of the fan blade 20 is gradually reduced from the front curve 23 to the rear curve 24. With the arrangement, the curved surface of the fan blade 20 is smoother, so that impact and obstruction to airflow can be reduced, and further the blowing amount is increased and the noise is reduced. Further, the blade tip curve 22 is located on a cylindrical surface coaxial with the blade axis 201. With such an arrangement, compared with the conventional fan blade with the same outer diameter, the fan blade 20 of the present invention has a larger surface area, thereby further increasing the air discharge amount of the fan blade 20. Further, the outer diameter of the fan blade 20 is 297 amm-302 a mm. By the design, the air output, the strength and the rigidity of the fan blade 20 can be effectively considered, so that the air output, the strength and the rigidity of the fan blade all reach the optimal state.

Preferably, the hub 10 has an outer diameter of 73.5a mm to 76.5a mm. By the design, the size proportion of the hub 10 and the fan blade 20 can reach a better state, and the influence on the air output, the noise reduction and other effects of the fan blade 20 due to the oversize or undersize of the hub 10 is avoided. Further, the height of the hub 10 is not less than 30.0a mm. So set up, can be in the wind that blows off is led to the wind that blows off when flabellum 20 blows to accelerate dispel the heat to the electrical components that periphery set up, promote the radiating effect of peripheral electrical components. When the blade root curve 21 is located on the first sidewall 12 of the hub 10 and the height of the hub 10 is not less than 30.0a mm, the hub 10 has a better guiding effect on the blown wind.

In this embodiment, the number of the fan blades 20 is 3. However, it is understood that in other embodiments, the number of the fan blades 20 may be set as required, and may be, for example, 2, 3, 4, 5, etc. Referring to fig. 3, when the number of the fan blades 20 is 3, the distance between the projections of the root curves 21 of two adjacent fan blades 20 on the plane perpendicular to the fan blade axis 201 is 19.0a mm to 23.0a mm, and the distance between the projections of the tip curves 22 of two adjacent fan blades 20 on the plane perpendicular to the fan blade axis 201 is 127.0a mm to 141.0a mm. By the design, the air output of the fan blades 20, the spreading angle of blowing air, the noise reduction effect and the like can be further optimized.

Compared with the prior art, the fan has the advantages that the air outlet volume is large, the spreading angle of air blowing is large, the noise is small, and the use experience of a user is effectively improved.

Referring to fig. 4, 5 and 6, the present invention further discloses a fan lamp 100, which includes the fan, a light source assembly (not shown), a lamp housing 50 and a ceiling assembly 60. The fan comprises the hub 10, the fan blades 20, a motor assembly 30 and an electronic control assembly 40. The motor assembly 30 is fixedly mounted on the lamp housing 50 and includes a motor 31 and a fastener 32. The output shaft of the motor 31 passes through the mounting hole 111 of the wheel hub 10 and drives the wheel hub 10 to rotate along with the output shaft of the motor 31. The fastening member 32 is at least partially received in the mounting groove 13 of the hub 10 and is engaged with the output shaft of the motor 31 to fix the hub 10 to the output shaft of the motor 31. Although the motor assembly 30 is fixed to the lamp housing 50 in the present embodiment, the motor assembly 30 may be fixed to the ceiling assembly 60 in other embodiments. The electronic control assembly 40 is used for controlling the fan to work.

Of course, it is understood that in other embodiments, a light source assembly is further disposed in the lampshade 50, and the electronic control assembly 40 can also be used to control the operation of the light source assembly. The lampshade 50 comprises a top wall 51 and a second side wall 52, the light source assembly is arranged on the top wall 51 and is positioned in the lampshade 50, and the light emitting direction of the light source assembly is consistent with the airflow direction of the fan. The top wall 51 and the second side wall 52 jointly enclose to form an accommodating cavity 53 to at least partially accommodate the fan blade 20, which is equivalent to that the height of the lampshade 50 along the vertical direction is smaller than the height of the fan blade 20 along the vertical direction, and of course, in other embodiments, the fan blade 20 may also be completely accommodated in the accommodating cavity 53, which is not limited herein. The top wall 51 is provided with an air inlet 511. The distance between the second side wall 52 and the fan blade axis 201 gradually increases from the position where the second side wall 52 is close to the top wall 51 to the position where the second side wall is far from the top wall 51, when the lampshade 50 is annular, the second side wall 52 is correspondingly annularly arranged around the fan blade 20, the maximum outer diameter of the fan blade 20 in the horizontal direction is smaller than the minimum inner diameter of the second side wall 52, that is: the top wall 51 is enclosed to form a horn structure, and the horn structure gradually increases from a position close to the top wall 51 to a position far away from the top wall 51. So set up, can effectively increase the diffusion angle of amount of wind, air current, can also be favorable to the heat dissipation of peripheral electrical components simultaneously. In other embodiments, the second sidewall 52 is curved away from the fan blade 20, and the second sidewall 52 is a free-form surface, but the cross section of the second sidewall 52 may also be a plane, which is not limited herein. The ceiling assembly 60 is used to fixedly mount the fan lamp 100 on other objects, such as: roofs, interior ceilings, etc.

In the present embodiment, the ceiling assembly 60 is a ring-shaped fixing ring, but in other embodiments, the ceiling assembly 60 may have other structures and forms, and the present invention does not limit the specific structures and forms of the ceiling assembly 60. Although the fan lamp 100 has only one fan blade assembly in the present embodiment, in other embodiments, the fan lamp 100 may be configured to have multiple fan blade assemblies, and the multiple fan blade assemblies overlap in the direction of the output shaft of the motor 31. The number of blades 20 per blade assembly may be set as desired.

Although the present invention has been described in detail with reference to the preferred embodiments, it will be understood by those skilled in the art that various changes may be made and equivalents may be substituted for elements thereof without departing from the spirit and scope of the present invention.