Power supply

• US 7,151,671 B2
• Filed: 11/28/2002
• Issued: 12/19/2006
• Est. Priority Date: 12/04/2001
• Status: Expired due to Fees

• Current Assignee: Tokyo R & D Co., Ltd.
• Original Assignee: Tokyo R & D Co., Ltd.
• Inventors: Hyodo, Jun
• Primary Examiner(s): Vortman, Anatoly
• Application Number:
  US10/497,688
• Publication Number:
  US 20050078454A1
• Time in Patent Office: 1,482 Days
• Field of Search: 361/712, 361704-707, 361709-715, 361/717, 257/713, 257/717, 257/722, 257/706, 257/707
• US Class Current: 361/717
• CPC Class Codes: H05K 5/0217 Mechanical details of casings covers, lids, hoods or members for covering apertures H05K5/03
• CPC Class Codes: H05K 7/20854 Heat transfer by conduction from internal heat source to heat radiating structure H05K7/20863 takes precedence

Abstract

A power supply comprising switching elements (20), wherein the power supply is provided with first heat sinks (30) having electrical conductivity to which the switching elements are fitted and a second heat sink (40) mounted with the first heat sinks which are electrically insulated, and first heat sink is used as one terminal for the switching elements, and the first heat sinks each having a projection, to be in contact with outside terminals (81), (82).

Claims

1. A power supply to be connected to an outside terminal of a first connector, comprising:

a switching element,

a first heat sink having electrical conductivity to which the switching element is fitted,

a second heat sink mounted with the first heat sink which is electrically insulated and uses the first heat sink as one terminal for the switching element,

a projection extending from the first heat sink for contact with the outside terminal, and

a second connector for supporting the projection such that the projection and the outside terminal are contacted by connecting the first and second connectors mutually.

2. The power supply according to claim 1, wherein the opposed areas between the first heat sink and the second heat sink are larger than that between the switching element and the first heat sink.

3. The power supply according to claim 1 or 2, wherein the first heat sink is a metal plate formed in the shape of a letter L.

4. The power supply according to claim 1 or 2, wherein the power supply is provided with the switching element and the first heat sink in plural, and at least one of the first heat sinks is provided with at least two of the switching elements so that electrodes have the same potential.