Mounting structure for electronic apparatus

• US 5,159,537 A
• Filed: 05/30/1990
• Issued: 10/27/1992
• Est. Priority Date: 06/02/1989
• Status: Expired due to Term

• Current Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Original Assignee: Canon Kabushiki Kaisha (Canon Inc.)
• Inventors: Okano, Masayuki
• Primary Examiner(s): Picard, Leo P.
• Assistant Examiner(s): LEDYNH, BOT L
• Application Number:
  US07/530,618
• Time in Patent Office: 881 Days
• Field of Search: 174/35 R, 174/35 MS, 174/35 TS, 361/424, 361/380, 361/392, 361/395, 361/397, 361/399, 361/400, 361/401, 361/403, 361/412, 361/413, 361/415, 219/10.55 R, 219/10.55 D, 330/68, 331/67, 331/68, 455/300, 455/301
• US Class Current: 361/816
• CPC Class Codes: H05K 1/141 One or more single auxiliary printed circuits mounted on a main printed circuit, e.g. modules, adapters H05K1/142 and H05K1/147 take precedence
• CPC Class Codes: H05K 2201/10303 Pin-in-hole mounted pins
• CPC Class Codes: H05K 2201/10371 Shields or metal cases
• CPC Class Codes: H05K 2201/10515 Stacked components
• CPC Class Codes: H05K 3/3447 Lead-in-hole components H05K3/3415 takes precedence
• CPC Class Codes: H05K 3/368 parallel to each other H05K3/361 takes precedence
• CPC Class Codes: H05K 9/0033 disposed on both PCB faces

Abstract

A mounting structure in which an electronic apparatus unit housed in a shield case is anchored directly on a circuit board in fixedly secured relation by fastening part of the shield case thereto. A space is created between the circuit board and a bottom plate of the shield case and part of the shield case which encloses the outer periphery of the electronic apparatus unit extends below the bottom plate to abut the circuit board and fixedly secure the shield case to the circuit board.

Claims

1. A mounting structure for an electronic apparatus, comprising:

a circuit board for printed wirings, said circuit board having fastening holes;

a shield case forming first and second divided spaces, said shield case having protuberances on open edges thereof, wherein said protuberances are inserted into the fastening holes and said open edges are in contact with a surface of said circuit board;

an electronic apparatus unit placed in one of the first and second divided spaces in said shield case, said electronic apparatus unit having a mounting base plate, parts mounted on said mounting base plate and input/output terminals, wherein said input/output terminals electrically connect said mounting base plate with said circuit board for printed wirings; and

electronic parts placed in the other of the first and second divided spaces in said shield case and being shielded, said electronic parts being arranged on said circuit board surface and electrically connected to said circuit board for printed wirings, wherein

said shield case has a bottom plate for dividing the first and second divided spaces in said shield case.

2. A mounting structure according to claim 1, wherein of the first and second divided spaces of said shield case, said electronic apparatus unit is placed in the space furtherest from said circuit board and said electronic parts are placed in the space nearest to said circuit board.

3. A mounting structure according to claim 1, wherein said circuit board has holes for electrical connection, with said input/output terminals being inserted into the holes for electrical connection and being connected by soldering.