Parallel fan

• US 6,648,590 B2
• Filed: 03/02/2001
• Issued: 11/18/2003
• Est. Priority Date: 04/10/2000
• Status: Active Grant

• Current Assignee: Delta Electronics Incorporated
• Original Assignee: Delta Electronics Incorporated
• Inventors: Huang, Wen-Shi, Lin, Kuo-Cheng, Kuo, Wei-Chen
• Primary Examiner(s): Look, Edward K.
• Assistant Examiner(s): McAleenan, J. M.
• Application Number:
  US09/798,573
• Publication Number:
  US 20010028842A1
• Time in Patent Office: 991 Days
• Field of Search: 415/53.1, 415/213.1, 415/224, 415/203, 415/206, 415/199.1, 415/220, 415/60, 415/61, 415/214.1, 415/175, 415/176, 415/177, 415/178, 416/244.R, 416/198.R
• US Class Current: 415/53.1
• CPC Class Codes: F04D 17/04 of transverse-flow type
• CPC Class Codes: F04D 25/166 using fans
• CPC Class Codes: F04D 29/602 Mounting in cavities

Abstract

The present invention relates to a parallel fan. The parallel fan includes an integrally formed fan frame having plural pairs of locating windows and a plurality of fans being respectively mounted in the plural pairs of locating windows. The parallel fan has an external single pair of power lines. Each pair of locating windows includes an inlet and an outlet for respectively enabling the fan to inhale from the inlet and discharge from the outlet.

Claims

1. A parallel fan, comprising:

an monolithic formed fan frame having plural pairs of locating windows;

a plurality of centrifugal fans being respectively mounted in said plural pairs of locating windows; and

wherein said monolithic formed fan frame and each of said plurality of centrifugal fans are structured and arranged so that each of said centrifugal fans generate an equal airflow rate.

2. The fan according to claim 1, wherein each said inlet and said outlet are respectively provided on a first plane and a second plane of said fan frames.

3. The fan according to claim 2, wherein said first plane adjoins to said second plane.

4. The fan according to claim 3, wherein said first plane and second plane are perpendicular to each other.

5. The parallel fan according to claim 2, wherein said first plane and second plane are parallel with each other.

6. The fan according to claim 5, wherein said fan is an axial-flow fan.

7. The fan according to claim 5, wherein said fan is a cross fan.

8. The fan according to claim 1, wherein power lines of said fans are connected in parallel to one another.