Compact radio equipment and method of mounting the same
A compact radio equipment includes internal circuits on two or more printed circuit boards electrically connected to each other and securely mounted in structure. With this structure, a first metal shield frame is mounted on a first printed circuit board to cover components mounted on the first printed circuit board. A second printed circuit board is mounted on the first metal shield frame.
1. Compact radio equipment comprising:
a first metal shield frame mounted on a first printed circuit board and covering a first component mounted on the first printed circuit board;
a second printed circuit board mounted on the first metal shield frame; and
a second metal shield frame which covers the second printed circuit board;
wherein the second metal shield frame is mounted on the first metal shield frame at a portion of the first metal shield frame which covers the first component mounted part.
2. Compact radio equipment according to claim 1 , wherein the second printed circuit board is electrically and mechanically connected to the first metal shield frame so that a bottom surface layer opposite to a component mounting surface is a ground layer.
3. Compact radio equipment according to claim 1 , wherein the second printed circuit board is electrically connected to the first metal shield frame so that a bottom surface layer opposite to a component mounting surface is a ground layer, and the second printed circuit board is structured by a radio circuit.
4. Compact radio equipment comprising:
a first metal shield frame mounted on a first printed circuit board to cover a first component mounted on the first printed circuit board;
a second printed circuit board mounted on the first metal shield frame;
a second metal shield frame to cover the second printed circuit board; and
wherein the second shield frame is mounted on the second printed circuit board.
5. Compact radio equipment according to claim 1 , wherein the equipment serves as a cell-phone or a PHS terminal.
6. A method of mounting compact radio equipment comprising the steps of mounting a first metal shield frame on a first printed circuit board to cover a component mounted on the first printed circuit board; mounting a second printed circuit board on the first metal shield frame; and covering the second printed circuit board with a second metal shield frame mounted on the first metal shield frame at a portion of the first metal shield frame which covers the first component mounted part.
7. A mounting method according to claim 6 , wherein: the second printed circuit board is electrically and mechanically connected to the first metal shield frame so that a bottom surface layer opposite to a component mounting surface is a ground layer.
8. A mounting method according to claim 6 , wherein the second printed circuit board is electrically connected to the first metal shield frame so that a bottom surface layer opposite to a component mounting surface is a ground layer, and the second printed circuit board is structured by a radio circuit.
9. A method of mounting compact radio equipment comprising the steps of mounting a first metal shield frame on a first printed circuit board to cover a component mounted on the first printed circuit board; mounting a second printed circuit board on the first metal shield frame; and covering the second printed circuit board with a second metal shield frame, wherein the second shield frame is mounted on the second printed circuit board.
10. A mounting method according to claim 6 , wherein the equipment serves as a cell-phone or a PHS terminal.
11. Compact radio equipment according to claim 1 , wherein the first printed circuit board is electrically connected to the second printed circuit board.
12. Compact radio equipment according to claim 11 , wherein the first printed circuit board is electrically connected to the second printed circuit board by a receptor and a connector.
13. Compact radio equipment according to claim 4 , wherein the first printed circuit board is electrically connected to the second printed circuit board.
14. A mounting method according to claim 6 , wherein the first printed circuit board is electrically connected to the second printed circuit board.
15. A mounting method according to claim 9 , wherein the first printed circuit board is electrically connected to the second printed circuit board.
16. Compact radio equipment comprising:
a first metal shield frame mounted on a first printed circuit board and covering a first component mounted on the first printed circuit board;
a second printed circuit board mounted on the first metal shield frame; and
a second metal shield frame which covers the second printed circuit board;
wherein the second metal shield frame is mounted on the first printed circuit board.
17. Compact radio equipment according to claim 16 , wherein second metal shield frame covers the first metal shield frame.