ILLUMINATION FAN

• US 20190331122A1
• Filed: 04/30/2018
• Published: 10/31/2019
• Est. Priority Date: 04/30/2018
• Status: Active Grant

• Current Assignee: Cooler Master Technology Inc.
• Original Assignee: Cooler Master Technology Inc.
• Inventors: CHEN, Chen-Wei
• Granted Patent: US 10,830,243 B2
• Time in Patent Office: Days
• CPC Class Codes: F04D 19/002 Axial flow fans
• CPC Class Codes: F04D 19/005 reversible fans
• CPC Class Codes: F04D 25/0613 the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
• CPC Class Codes: F04D 25/08 the working fluid being air, e.g. for ventilation
• CPC Class Codes: F04D 29/388 characterised by construction
• CPC Class Codes: F21Y 2115/10 Light-emitting diodes [LED]

Abstract

An illumination fan includes a first frame, a second frame, a fan blade, a light guide and a light source. The first frame includes an accommodation space. The second frame is assembled with the first frame, and an inner surface of the second frame is substantially flat. The fan blade is rotatably disposed in the accommodation space. The light source is disposed on either the first frame or the second frame. The light guide is disposed on the first frame and surrounds the fan blade.

Claims

1. An illumination fan, comprising:

a first frame comprising an accommodation space;

a second frame assembled with the first frame, and an inner surface of the second frame being substantially flat;

a fan blade rotatably disposed in the accommodation space;

a light source disposed on either the first frame or the second frame; and

a light guide disposed on the first frame and surrounding the fan blade.

2. The illumination fan according to claim 1, wherein the first frame comprises a frame body and an assembling structure, the frame body comprises the inner surface, the assembling structure is located on the inner surface, and the first frame is assembled with the second frame by the assembling structure.

3. The illumination fan according to claim 2, wherein the assembling structure is disposed nearby a periphery of the frame body, and the inner surface of the frame body faces toward the fan blade.

4. The illumination fan according to claim 2, wherein the inner surface of the frame body extends from a center of the frame body to a periphery of the frame body.

5. The illumination fan according to claim 2, wherein the frame body comprises an annular portion and a rib portion connected to each other, the assembling structure is disposed on the annular portion, the fan blade is disposed on the rib portion, and an inner surface of the annular portion and an inner surface of the rib portion jointly define the inner surface of the frame body.

6. The illumination fan according to claim 1, wherein any portion of the second frame is not located between the fan blade and the light guide in a radial direction of the illumination fan.

7. The illumination fan according to claim 1, wherein the first frame comprises a first lateral wall, and the light guide is disposed on the first lateral wall.

8. The illumination fan according to claim 7, wherein the light guide comprises a light guide portion and a protrusion located on a lateral side of the light guide portion facing toward the fan blade, and the protrusion is fitted into an opening of the first lateral wall of the first frame.

9. The illumination fan according to claim 7, wherein the light guide comprises a plurality of light guide portions and a plurality of protrusions, the light guide portions are assembled with each other, the protrusions are respectively located on lateral sides of the light guide portions facing toward the fan blade, a plurality of openings of the first lateral wall of the first frame are arranged in a circumferential direction of the illumination fan, and the protrusions of the light guide are respectively fitted into the openings.

10. The illumination fan according to claim 7, wherein the first frame further comprises a second lateral wall connected to the first lateral wall, the first lateral wall is closer to the fan blade than the second lateral wall, the first lateral wall and the second lateral wall jointly define an accommodation groove, and the light guide is disposed in the accommodation groove.

11. The illumination fan according to claim 10, wherein the light source is disposed in the accommodation groove.

12. The illumination fan according to claim 11, wherein the light source is located between the light guide and the second lateral wall.

13. An illumination fan, comprising:

a first frame comprising an accommodation space;

a second frame assembled with the first frame;

a fan blade rotatably disposed in the accommodation space;

a light source disposed on either the first frame or the second frame; and

a light guide disposed on the first frame and surrounding the fan blade, and any portion of the second frame being not located between the fan blade and the light guide in a radial direction of the illumination fan.

14. The illumination fan according to claim 13, wherein the second frame comprises a frame body and an assembling structure located on an inner surface of the frame body, the first frame is assembled with the second frame by the assembling structure, and the inner surface of the frame body faces toward the fan blade.

15. The illumination fan according to claim 14, wherein the inner surface of the frame body extends from a center of the frame body to a periphery of the frame body.

16. The illumination fan according to claim 14, wherein the first frame comprises a first lateral wall, and the light guide is disposed on the first lateral wall.

17. The illumination fan according to claim 16, wherein the frame body comprises an annular portion and a rib portion connected to each other, the assembling structure is disposed on the annular portion, the fan blade is disposed on the rib portion, and the light source is disposed in a recess of the annular portion.

18. The illumination fan according to claim 16, wherein the light guide comprises a light guide portion and a protrusion located on a lateral side of the light guide portion facing toward the fan blade, and the protrusion is fitted into an opening of the first lateral wall of the first frame.

19. The illumination fan according to claim 16, wherein the light guide comprises a plurality of light guide portions and a plurality of protrusions, the light guide portions are assembled with each other, the protrusions are respectively located on lateral sides of the light guide portions facing toward the fan blade, a plurality of openings of the first lateral wall of the first frame are arranged in a circumferential direction of the illumination fan, and the protrusions of the light guide are respectively fitted into the openings.

20. The illumination fan according to claim 16, wherein the first frame further comprises a second lateral wall connected to the first lateral wall, the first lateral wall is closer to the fan blade than the second lateral wall, the first lateral wall and the second lateral wall jointly define an accommodation groove, and the light guide is disposed in the accommodation groove.

21. The illumination fan according to claim 20, wherein the light source is disposed in the accommodation groove.

22. The illumination fan according to claim 21, wherein the light source is located between the light guide and the second lateral wall.

23. An illumination fan, comprising:

a first frame comprising an accommodation space;

a second frame assembled with the first frame, wherein there is no raised area on an inner surface of the second frame;

a fan blade rotatably disposed in the accommodation space;

a light source disposed on either the first frame or the second frame; and

a light guide disposed on the first frame and surrounding the fan blade.

24. The illumination fan according to claim 23, wherein the second frame comprises a frame body and an assembling structure, the frame body comprises the inner surface, the assembling structure is located on the inner surface, and the first frame is assembled with the second frame by the assembling structure.

25. The illumination fan according to claim 24, wherein the assembling structure is disposed nearby a periphery of the frame body, and the inner surface of the frame body faces toward the fan blade.

26. The illumination fan according to claim 24, wherein the inner surface of the frame body extends from a center of the frame body to a periphery of the frame body.

27. The illumination fan according to claim 24, wherein the frame body comprises an annular portion and a rib portion connected to each other, the assembling structure is disposed on the annular portion, the fan blade is disposed on the rib portion, and an inner surface of the annular portion and an inner surface of the rib portion jointly define the inner surface of the frame body.

28. The illumination fan according to claim 27, wherein the light source is disposed in a recess of the annular portion.

29. The illumination fan according to claim 23, wherein the first frame comprises a first lateral wall, and the light guide is disposed on the first lateral wall.

30. The illumination fan according to claim 29, wherein the light guide comprises a light guide portion and a protrusion located on a lateral side of the light guide portion facing toward the fan blade, and the protrusion is fitted into an opening of the first lateral wall of the first frame.

31. The illumination fan according to claim 29, wherein the light guide comprises a plurality of light guide portions and a plurality of protrusions, the light guide portions are assembled with each other, the protrusions are respectively located on lateral sides of the light guide portions facing toward the fan blade, a plurality of openings of the first lateral wall of the first frame are arranged in a circumferential direction of the illumination fan, and the protrusions of the light guide are respectively fitted into the openings.

32. The illumination fan according to claim 29, wherein the first frame further comprises a second lateral wall connected to the first lateral wall, the first lateral wall is closer to the fan blade than the second lateral wall, the first lateral wall and the second lateral wall jointly define an accommodation groove, and the light guide is disposed in the accommodation groove.

33. The illumination fan according to claim 32, wherein the light source is disposed in the accommodation groove.

34. The illumination fan according to claim 33, wherein the light source is located between the light guide and the second lateral wall.

35. An illumination fan, comprising:

a first frame comprising a first lateral wall and a second lateral wall connected to each other, the first lateral wall and the second lateral wall jointly defining an accommodation groove, and the first frame comprising an accommodation space;

a second frame assembled with the first frame;

a fan blade rotatably disposed in the accommodation space, and the first lateral wall being closer to the fan blade than the second lateral wall;

a light source disposed on either the first frame or the second frame; and

a light guide disposed in the accommodation groove and surrounding the fan blade.

36. The illumination fan according to claim 35, wherein any portion of the second frame is not located between the fan blade and the light guide in a radial direction of the illumination fan.

37. The illumination fan according to claim 35, wherein the second frame comprises a frame body and an assembling structure, the assembling structure is located on an inner surface of the frame body, the first frame is assembled with the second frame by the assembling structure, and there is no raised area on the inner surface of the frame body.

38. The illumination fan according to claim 37, wherein the frame body comprises an annular portion and a rib portion connected to each other, the assembling structure is disposed on the annular portion, the fan blade is disposed on the rib portion, and the light source is disposed in a recess of the annular portion.

39. The illumination fan according to claim 35, wherein the light guide comprises a light guide portion and a protrusion located on a lateral side of the light guide portion facing toward the fan blade, and the protrusion is fitted into an opening of the first lateral wall of the first frame.

40. The illumination fan according to claim 35, wherein the light guide comprises a plurality of light guide portions and a plurality of protrusions, the light guide portions are assembled with each other, the protrusions are respectively located on lateral sides of the light guide portions facing toward the fan blade, a plurality of openings of the first lateral wall of the first frame are arranged in a circumferential direction of the illumination fan, and the protrusions of the light guide are respectively fitted into the openings.

41. The illumination fan according to claim 35, wherein the light source is disposed in the accommodation groove.

42. The illumination fan according to claim 41, wherein the light source is located between the light guide and the second lateral wall.

43. An illumination fan, comprising:

a first frame comprising a lateral wall and an accommodation space;

a second frame assembled with the first frame;

a fan blade rotatably disposed in the accommodation space, and the lateral wall of the first frame being located on a side of the fan blade;

a light source disposed on either the first frame or the second frame; and

a light guide disposed on the first frame and surrounding the fan blade, the light guide comprising at least one light guide portion and at least one protrusion located on a lateral side of the at least one light guide portion facing toward the fan blade, and the at least one protrusion is fitted into at least one opening of the lateral wall.

44. The illumination fan according to claim 43, wherein numbers of the at least one opening, the at least one light guide portion and the at least one protrusion are multiple, the protrusions are respectively located on the light guide portions, the openings are arranged in a circumferential direction of the illumination fan, and the protrusions are respectively fitted into the openings.

45. The illumination fan according to claim 44, wherein one of the light guide portions is assembled with the other two of the light guide portions.

46. The illumination fan according to claim 43, wherein there is an air gap between the at least one light guide portion and the second frame.

47. The illumination fan according to claim 46, wherein the light source is located below the at least one light guide portion.

48. The illumination fan according to claim 43, wherein any portion of the second frame is not located between the fan blade and the light guide in a radial direction of the illumination fan.

49. The illumination fan according to claim 43, wherein the first frame further comprises a second lateral wall connected to the first lateral wall, the first lateral wall is closer to the fan blade than the second lateral wall, the first lateral wall and the second lateral wall jointly define an accommodation groove, and the at least one light guide portion of the light guide is disposed in the accommodation groove.

50. The illumination fan according to claim 49, wherein the light source is located between the at least one light guide portion and the second lateral wall.