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US 7,102,075 B1Granted
Electronic circuit unit and its sealed structure
AssigneeKabushiki Kaisha Toshiba
InventorEiji Saruwatari
Life of this patent
Estimating the term…
Abstract
A first frame is arranged on a printed circuit board to enclose a first circuit that radiates a noise. The printed circuit board also has mounted thereon a second circuit that has a need to be protected from the noise. A second frame is arranged on the printed circuit board to enclose the second circuit. The second frame is separated from one side of the first frame by a given clearance area, and the second frame has an open side facing the one side of the first frame.
Claims8
An electronic circuit unit comprising:
- a printed circuit board mounted with a first circuit and a second circuit;
- a first frame arranged on the printed circuit board around the first circuit;
- a second frame arranged on the printed circuit board around the second circuit, said second frame being separated from one side of the first frame by a given clearance area, and said second frame having an open side facing the one side of the first frame;
- a first cover which closes an upper opening portion of the first frame;
- and
- a second cover which is independent of the first frame, and which closes an upper opening portion of the second frame;
- wherein at least one of the first and second covers comprises an extended portion that overlaps the other of the first and second covers.
4 more elements
An electronic circuit unit comprising:
- a printed circuit board mounted with a first circuit that radiates a noise and a second circuit that has a need to be protected from the noise;
- a first frame arranged on the printed circuit board around the first circuit;
- a second frame arranged on the printed circuit board around the second circuit, said second frame being separated from one side of the first frame by a given clearance area, and said second frame having an open side facing the one side of the first frame;
- a first cover which closes an upper opening portion of the first frame;
- and
- a second cover which is independent of the first frame, and which closes an upper opening portion of the second frame;
- wherein at least one of the first and second covers comprises an extended portion that overlaps the other of the first and second covers.
4 more elements
A shield structure comprising:
- a first frame arranged on a printed circuit board around a first circuit, said printed circuit board also having mounted thereon a second circuit;
- a second frame arranged on the printed circuit board around the second circuit, said second frame being separated from one side of the first frame by a given clearance area, and said second frame having an open side facing the one side of the first frame;
- a first cover which closes an upper opening portion of the first frame;
- and
- a second cover which is independent of the first frame, and which closes an upper opening portion of the second frame;
- wherein at least one of the first and second covers comprises an extended portion that overlaps the other of the first and second covers.
3 more elements
A shield structure comprising:
- a first frame arranged on a printed circuit board around a first circuit that radiates a noise, said printed circuit board also having mounted thereon a second circuit that has a need to be protected from the noise;
- a second frame which is arranged on the printed circuit board around the second circuit, said second frame being separated from one side of the first frame by a given clearance area, and said second frame having an open side facing the one side of the first frame;
- a first cover which closes an upper opening portion of the first frame;
- and
- a second cover which is independent of the first frame, and which closes an upper opening portion of the second frame;
- wherein at least one of the first and second covers comprises an extended portion that overlaps the other of the first and second covers.
3 more elements
Dependencies are inferred from the claim text.