Waterproofed power supply apparatus

• US 5,943,220 A
• Filed: 09/05/1997
• Issued: 08/24/1999
• Est. Priority Date: 09/24/1996
• Status: Expired due to Term

• Current Assignee: Sansha Electric Manufacturing Company Limited
• Original Assignee: Sansha Electric Manufacturing Company Limited
• Inventors: Danjo, Kenzo, Katooka, Masao, Arai, Toru, Okamoto, Shigeru, Shikata, Kunio
• Primary Examiner(s): Tolin, Gerald P.
• Application Number:
  US08/926,285
• Time in Patent Office: 718 Days
• Field of Search: 307/150, 174/35 R, 174/35 MS, 363/141, 363/144, 361/35, 361/38, 361/600, 361/601, 361/622, 361/623, 361/641, 361/836, 361/704-707, 361/717-719, 361/816, 361/818
• US Class Current: 361/818
• CPC Class Codes: H05K 5/0212 Condensation eliminators
• CPC Class Codes: H05K 5/0213 Venting apertures; Constructional details thereof
• CPC Class Codes: H05K 5/0214 with means preventing penetration of rain water or dust semi-permeable membranes H05K5/0215, H05K5/0216
• CPC Class Codes: H05K 5/0247 Electrical details of casings, e.g. terminals, passages for cables or wiring
• CPC Class Codes: H05K 5/06 Hermetically-sealed casings specially adapted for small components H05K5/0095
• CPC Class Codes: H05K 7/1432 specially adapted for power drive units or power converters
• CPC Class Codes: H05K 7/14322 wherein the control and power circuits of a power converter are arranged within the same casing

Abstract

A power supply apparatus includes a front panel, a rear panel and two left and right side panels which together form a housing. Opposed edges of a partition are connected to the front and rear panels to thereby divide the interior space of the housing into upper and lower chambers. The left and right side panels each have edges which are placed to abut against the corresponding edges of the other side panel.

Components of a power supply circuit are appropriately distributed in the upper and lower chambers. Some of the components in the upper chambers are located beneath the upper abutting edges of said left and right side panels, and a cover is disposed to cover at least those components which are located beneath the upper abutting edges.

Claims

1. A power supply apparatus comprising:

a housing having a space therein, said housing including two members each having at least upper and lower end surfaces abutting against the corresponding end surfaces of the other member, each of said upper end surfaces extending at an angle with respect to a horizontal plane;

a power supply circuit disposed within said housing and having at least a part thereof located near said abutting upper end surfaces; and

a cover for said power supply circuit disposed within said housing, said cover having a generally horizontally extending portion covering at least said part of said power supply circuit which is located near said abutting upper end surfaces.

2. The power supply apparatus according to claim 1 wherein said cover in its entirety includes an electrically conductive material.

3. The power supply apparatus according to claim 2 wherein a surface of said cover facing said abutting surfaces is coated with a corrosion-resistant material.

4. The power supply apparatus according to claim 1 wherein a drainage hole is formed in the bottom of said housing.

5. A power supply apparatus comprising:

a front panel and a rear panel spaced from said front panel to thereby define a space therebetween;

side panels disposed to surround said space from opposite sides thereof to thereby form a housing together with said front and rear panels, each of said side panels having upper and lower end surfaces abutting against the corresponding end surfaces of the other side panel;

a partition having its opposed edges connected to said front and rear panels within said space to thereby divide said space into an upper space and a lower space;

a power supply circuit having its components disposed in said upper and lower spaces, a part of the components thereof disposed in said upper space being located beneath said upper abutting end surfaces of said side panels; and

a cover disposed in said upper space to cover at least said part of said power supply circuit, said cover having a generally horizontally extending upper wall which is located beneath said upper abutting end surfaces of said side panels and having side walls extending from opposing sides of said upper wall toward said partition.

6. The power supply apparatus according to claim 5 wherein a part of the components in said upper space includes a component which processes a high-frequency signal, and said cover in its entirety includes an electrically conductive material.

7. The power supply apparatus according to claim 5 wherein a drainage hole is formed in the bottom of said housing.

8. The power supply apparatus according to claim 7 wherein the components of said power supply circuit disposed in said lower space care mounted on said partition.