Blower and the blade structure thereof

• US 6,986,643 B2
• Filed: 10/22/2002
• Issued: 01/17/2006
• Est. Priority Date: 01/31/2002
• Status: Active Grant

• Current Assignee: Delta Electronics Incorporated
• Original Assignee: Delta Electronics Incorporated
• Inventors: Lin, Kuo-cheng, Huang, Wen-shi, Chang, Shun-chen
• Primary Examiner(s): Trieu, Theresa
• Application Number:
  US10/278,590
• Publication Number:
  US 20030143070A1
• Time in Patent Office: 1,183 Days
• Field of Search: 416/183, 416/187, 416/228, 416/237, 415/206
• US Class Current: 416/183
• CPC Class Codes: F04D 29/282 the leading edge of each vane being substantially parallel to the rotation axis
• CPC Class Codes: F04D 29/30 Vanes

Abstract

The present invention provides a blade structure used in a blower to not only increase the wind pressure and gas quantity but also reduce the noise. The blade structure includes a vane group constituted by a plurality of vanes. A plurality of inclined portions is also included in the blade structure. Each of the plurality of the inclined portions is connected to each of the plurality of vanes of the vane group.

Claims

1. A blade structure, comprising:

a vane group constituted by a plurality of vanes; and

a plurality of inclined portions, each of which is connected to each of the plurality of vanes of the vane group, respectively;

wherein the outer edge of each vane of the vane group and the outer edge of each inclined portion are position in the same vertical plane with respect to the rotation of the blade structure.

2. The blade structure according to claim 1, further comprising:

a base around which the plurality of vanes of the vane group are mounted.

3. The blade structure according to claim 2, wherein the base, the vane group, and the plurality of inclined portions are integrally formed.

4. The blade structure according to claim 2, wherein the base is formed with a central opening for a motor driving the blade structure to be mounted therein.

5. The blade structure according to claim 2, wherein the plurality of vanes of the vane group partially protrudes from a bottom of the base.

6. The blade structure according to claim 1, further comprising:

a hoop mounted around a top edge of each of the inclined portions.

7. The blade structure according to claim 1, wherein the vane group and the plurality of inclined portions are alternately arranged in multiple levels to increase the wind pressure of the guided air stream.

8. The blade structure according to claim 1, wherein each of the plurality of vanes of the vane group has a structural type selected from the group consisting of a curved surface, an inclined surface, an arched surface, and a flat surface.

9. A blade structure, comprising:

a first vane group constituted by a plurality of vanes;

a second vane group constituted by a plurality of vanes; and

a plurality of inclined portions connected between the vanes of the first vane group and the vanes of the second vane group;

wherein the outer edge of each vane of the first vane group, the outer edge of each vane of the second vane group, and the outer edge of the inclined portion are positioned in the same vertical plane with respect to the rotation of the blade structure.

10. The blade structure according to claim 9, wherein the first vane group, the second vane group, and the plurality of inclined portions are integrally formed.

11. The blade structure according to claim 9, further comprising:

a base around which the plurality of vanes of the first vane group and the plurality of vanes of the second vane group are mounted.

12. The blade structure according to claim 11, wherein the base, the first vane group, the second vane group, and the plurality of inclined portions are integrally formed.

13. The blade structure according to claim 11, wherein the base is formed with a central opening for a motor driving the blade structure to be mounted therein.

14. The blade structure according to claim 11, wherein the plurality of vanes of the first vane group and the plurality of vanes of the second vane group partially protrude from a bottom of the base.

15. The blade structure according to claim 9, further comprising a hoop mounted around a top edge of each of the plurality of vanes of the first vane group.

16. The blade structure according to claim 9, wherein the plurality of vanes of the first vane group and the plurality of vanes of the second vane group are alternately arranged in multiple levels to increase the wind pressure of the guided air stream.

17. The blade structure according to claim 9, wherein the plurality of vanes of the first vane group and the plurality of vanes of the second vane group are arranged alternately.

18. The blade structure according to claim 9, wherein each of the plurality of vanes of the first and second vane groups has a structural type selected from the group consisting of a curved surface, an inclined surface, an arched surface, and a flat surface.

19. A blower, comprising:

an outer casing; and

a blade structure mounted within the outer casing, the blade structure comprising;

a first vane group constituted by a plurality of vanes;

a second vane group constituted by a plurality of vanes; and

a plurality of inclined portions connected between the vanes of the first vane group and the vanes of the second vane group.

wherein the outer edge of each vane of the first vane group, the outer edge of each vane of the second vane group, and the outer edge of each inclined portion are position in the same plane parallel to an axis of the blower.

20. The blower according to claim 19, wherein the first vane group, the second vane group, and the plurality of inclined portions are integrally formed.

21. The blower according to claim 19, wherein the blade structure further comprises a base around which the plurality of vanes of the first vane group and the plurality of vanes of the second vane group are mounted.

22. The blower according to claim 21, wherein the base is formed with a central opening for a motor driving the blade structure to be mounted therein.

23. The blower according to claim 21, wherein the plurality of vanes of the first vane group and the plurality of vanes of the second vane group partially protrude from a bottom of the base.

24. The blower according to claim 19, wherein the blade structure further comprises a hoop mounted around a top edge of each of the plurality of vanes of the first vane group.

25. The blower according to claim 19, wherein the plurality of vanes of the first vane group and the plurality of vanes of the second vane group are alternately arranged in multiple levels to increase the wind pressure of the guided air stream.

26. The blower according to claim 19, wherein the plurality of vanes of the first vane group and the plurality of vanes of the second vane group are arranged alternately.

27. The blower according to claim 19, wherein each of the plurality of vanes of the first and second vane groups has a structural type selected from the group consisting of a curved surface, an inclined surface, an arched surface, and a flat surface.

28. The blower according to claim 19, wherein the blower is a single side entry blower.

29. The blower according to claim 19, wherein the blower is a double side entry blower.

30. A blower, comprising:

an outer casing; and

a blade structure mounted within the outer casing, the blade structure comprising;

a vane group constituted by a plurality of vanes; and

a plurality of inclined portions, each of which is connected to each of the plurality of vanes of the vane group, respectively.

wherein the outer edge of each vane of the vane group and the outer edge of each inclined portion are position in the same plane parallel to an axis of the blower.