Rectifying device

• US 4,460,956 A
• Filed: 06/14/1982
• Issued: 07/17/1984
• Est. Priority Date: 06/15/1981
• Status: Expired due to Fees

• Current Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Original Assignee: Mitsubishi Denki Kabushiki Kaisha (Mitsubishi Electric Corporation)
• Inventors: Hamasaki, Yoshihiro
• Primary Examiner(s): Wong, Peter S.
• Application Number:
  US06/387,893
• Time in Patent Office: 764 Days
• Field of Search: 363/141, 363/144, 363/125, 363/126, 361/379, 361/381-384, 361/388, 361/389, 357/80-82, 357/84
• US Class Current: 363/141
• CPC Class Codes: H01L 2023/4025 Base discrete devices, e.g. presspack, disc-type transistors
• CPC Class Codes: H01L 23/4006 with bolts or screws
• CPC Class Codes: H01L 23/62 Protection against overvoltage, e.g. fuses, shunts
• CPC Class Codes: H01L 2924/00 Indexing scheme for arrangements or methods for connecting or disconnecting semiconductor or solid-state bodies as covered by H01L24/00
• CPC Class Codes: H01L 2924/0002 Not covered by any one of groups H01L24/00, H01L24/00 and H01L2224/00
• CPC Class Codes: H01L 2924/3011 Impedance

Abstract

A rectifying device is improved by arranging heat exchanging cooling pieces positioned on either side of the rectifying element in series with respect to a flow direction of cooling air circulating through the device. A sleeve element may cover the cooling pieces and the rectifier for channelling the air and reducing the spacing required between adjacent rectifier elements.

Claims

1. A rectifying device, comprising:

a conductor (31);

first cooling means (42) electrically connected to and rigidly secured in parallel to said conductor;

a securing frame (45) secured to said first cooling means;

a second cooling means (41) secured to said frame;

a rectifying element (1) disposed between said first and second cooling means in series with respect to a direction of cooling air flowing through said rectifier, said air flow being parallel to the line of attachment of said first cooling means to said conductor; and

screw means attached to said frame for pressing said second cooling means and said rectifying element toward said first cooling means.

2. A rectifying device as set forth in claim 1, further including a plurality of heat-radiating fins attached to said cooling means formed parallel to said flow direction of said cooling air.

3. A rectifying device as set forth in claim 1, including cooling air passages formed between said two cooling means.

4. A rectifying device as set forth in claim 1, further including an insulating sleeve (60) for encasing both said cooling means.

5. A rectifying device as set forth in claim 4, further including a fuse (2) arranged serially with said rectifying element, said sleeve extending about said fuse.