A fan, including a volute, a motor, and multiple fan blades that are assembled on a rotor of the motor, where the volute includes a side wall that is disposed around circumference of the multiple fan blades, and a support frame that is connected to an end of the side wall and located on an inner sid
A fan, including a volute, a motor, and multiple fan blades that are assembled on a rotor of the motor, where the volute includes a side wall that is disposed around circumference of the multiple fan blades, and a support frame that is connected to an end of the side wall and located on an inner side of the side wall; and the rotor of the motor drives the multiple fan blades to rotate, where multiple through-holes are disposed on the side wall of the volute, and at least more than one of the multiple through-holes is a slant through-hole.
대표청구항▼
1. A fan comprising: a motor comprising a rotor;multiple fan blades assembled on the rotor, the rotor driving the multiple fan blades to rotate, and the rotor having a rotor axis; anda volute comprising: a side wall disposed around the multiple fan blades and comprising multiple through-holes, at le
1. A fan comprising: a motor comprising a rotor;multiple fan blades assembled on the rotor, the rotor driving the multiple fan blades to rotate, and the rotor having a rotor axis; anda volute comprising: a side wall disposed around the multiple fan blades and comprising multiple through-holes, at least two of the multiple through-holes being slant through-holes having an axis and a circular cross-section that has a constant diameter throughout the side wall, and the diameter being less than or equal to 3.6 millimeters; anda support frame connected to an end of the side wall and located on an inner side of the side wall, the support frame comprising: a support part fastened to the motor; andmultiple ribs, each comprising: one end connected to a circumference of the support part; andanother end connected to the inner side of the side wall. 2. The fan of claim 1, wherein an included angle Φ between a tangent plane or a tangent line at which an inner wall or an outer wall of the side wall of the volute intersects with an inner wall of one of the slant through-holes and the inner wall of the one slant through-hole is an acute angle. 3. The fan of claim 2, wherein the included angle Φ is less than or equal to 85 degrees. 4. The fan of claim 2, wherein the included angle Φ of all of the slant through-holes is the same. 5. The fan of claim 1, wherein an included angle θ between the axis and a tangent line or a tangent plane at which an inner wall or an outer wall of the side wall intersects the axis of one of the slant through-holes is an acute angle. 6. The fan of claim 5, wherein the included angle θ is less than or equal to 85 degrees. 7. The fan of claim 5, wherein the included angle θ of all of the slant through-holes is the same. 8. The fan of claim 1, wherein axes of at least some of the slant through-holes are parallel. 9. The fan of claim 1, wherein an area that has the through-holes and that is of the side wall of the volute comprises a ribbon area A of the side wall of the volute, and as a position continuously changes in a process of rotation of the multiple fan blades, a total area of all projections of the multiple fan blades onto the side wall of the volute occupy on the side wall of the volute is the ribbon area A. 10. The fan of claim 9, wherein the area that has the through-holes and that is of the side wall of the volute further comprises ribbon areas that are located on two sides of the ribbon area A and occupy a width of L/2 in a height direction of the side wall of the volute, and a width occupied along the rotor axis of the side wall of the volute by the area A is L. 11. The fan of claim 1, wherein a diameter of the through-holes is from 2.4 millimeters to 3.6 millimeters. 12. The fan of claim 1, wherein a quantity of slant through-holes-accounts for at least 20% of a total quantity of the through-holes. 13. The fan of claim 1, wherein the fan further comprises a sound absorption material coated on an outer side of the side wall of the volute. 14. The fan of claim 1, wherein the fan further comprises a sound absorption material filled in the multiple through-holes of the side wall of the volute. 15. The fan of claim 1, wherein any two adjacent slant through-holes are not parallel. 16. The fan of claim 1, wherein the axes of any two adjacent slant through-holes are not parallel. 17. The fan of claim 1, wherein none of the axes intersect the rotor axis. 18. The fan of claim 1, wherein a diameter of the slant through-holes is 3.6 millimeters. 19. The fan of claim 1, wherein an included angle Φ between a tangent plane or a tangent line at which an inner wall or an outer wall of the side wall of the volute intersects with an inner wall of one of the slant through-holes and the inner wall of the one slant through-hole is an obtuse angle. 20. The fan of claim 19, wherein the included angle Φ is greater than or equal to 95 degrees. 21. The fan of claim 1, wherein an included angle θ between the axis and a tangent line or a tangent plane at which an inner wall or an outer wall of the side wall of the volute intersects with the axis of one of the slant through-holes is an obtuse angle. 22. The fan of claim 21, wherein the included angle θ is greater than or equal to 95 degrees. 23. A communications device comprising: an electronic circuit;an air channel configured to take heat away from the electronic circuit by flowing an air flow in the air channel; anda fan configured to promote the flowing of the airflow in the air channel, the fan comprising: a motor comprising a rotor, the rotor comprising a rotor axis;multiple fan blades that are assembled on the rotor, the rotor driving the multiple fan blades to rotate; anda volute comprising: a side wall that is disposed around the multiple fan blades and comprising multiple through-holes, at least two of the multiple through-holes being slant through-holes having an axis and a circular cross-section that has a constant diameter throughout the side wall, and the diameter being less than or equal to 3.6 millimeters; anda support frame that is connected to an end of the side wall and located on an inner side of the side wall, the support frame comprising: a support part fastened to the motor; andmultiple ribs, each comprising: one end connected to a circumference of the support part; and another end connected to the inner side of the side wall. 24. The communications device of claim 23, wherein an included angle Φ between a tangent plane or a tangent line at which an inner wall or an outer wall of the side wall of the volute intersects with an inner wall of one of the slant through-holes and the inner wall of the one slant through-hole is an acute angle. 25. The communications device of claim 24, wherein the included angle Φ is less than or equal to 85 degrees. 26. The communications device of claim 24, wherein the included angle Φ of all of the slant through-holes is the same. 27. The communications device of claim 23, wherein an included angle θ between the axis and a tangent line or a tangent plane at which an inner wall or an outer wall of the side wall of the volute intersects with of one of the slant through-holes the axis is an acute angle. 28. The communications device of claim 27, wherein the included angle θ is less than or equal to 85 degrees. 29. The communications device of claim 27, wherein the included angle θ of all of the slant through-holes are the same. 30. The communications device of claim 23, wherein an area that has the through-holes and that is of the side wall of the volute comprises a ribbon area A of the side wall of the volute, and as a position continuously changes in a process of rotation of the multiple fan blades, a total area of all projections of the multiple fan blades onto the side wall of the volute occupy on the side wall of the volute is the ribbon area A. 31. The communications device of claim 30, wherein the area that has the through-holes and that is of the side wall of the volute further comprises ribbon areas that are located on two sides of the ribbon area A and occupy a width of L/2 in a height direction of the side wall of the volute, and a width occupied along the rotor axis of the side wall of the volute by the area A is L. 32. The communications device of claim 23, wherein a diameter of the through-holes is from 2.4 millimeters to 3.6 millimeters. 33. The communications device of claim 23, wherein axes of at least some of the slant through-holes are parallel. 34. The communications device of claim 23, wherein a quantity of slant through-holes accounts for at least 20% of a total quantity of the through-holes. 35. The communications device of claim 23, wherein the fan further comprises a sound absorption material coated on an outer side of the side wall of the volute. 36. The communications device of claim 23, wherein the fan further comprises a sound absorption material filled in the multiple through-holes of the side wall of the volute. 37. The communications device of claim 23, wherein any two adjacent slant through-holes are not parallel. 38. The communications device of claim 23, wherein the axes of any two adjacent slant through-holes are not parallel. 39. The communications device of claim 23, wherein none of the axes intersect the rotor axis. 40. The communications device of claim 23, wherein a diameter of the slant through-holes is 3.6 millimeters. 41. The communications device of claim 23, wherein an included angle Φ between a tangent plane or a tangent line at which an inner wall or an outer wall of the side wall of the volute intersects with an inner wall of one of the slant through-holes and the inner wall of the one slant through-hole is an obtuse angle. 42. The communications device of claim 41, wherein the included angle Φ is greater than or equal to 95 degrees. 43. The communications device of claim 23, wherein an included angle θ between the axis and a tangent line or a tangent plane at which an inner wall or an outer wall of the side wall of the volute intersects with of one of the slant through-holes the axis is an obtuse angle. 44. The communications device of claim 43, wherein the included angle θ is greater than or equal to 95 degrees.
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이 특허에 인용된 특허 (8)
Kayama, Shun; Shimizu, Yukiko; Yamamoto, Kazutoshi, Axial fan apparatus, housing, and electronic apparatus.
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