IP Library Granted Patent US 12713517
Granted Patent B2
US 12713517 · App. 18/659,246 · Granted Aug 18, 2026

Circuit board device and image forming apparatus

Inventors: Ryosuke Kawasaki (Tokyo, JP); Tomoaki Suga (Kanagawa, JP)
Assignee: Ricoh Company, Ltd.
H05K1/0213G03G15/80
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Quick Facts
Patent No.
US 12713517
App. No.
18/659,246
Granted
Aug 18, 2026
Kind
B2
Abstract

A circuit board device includes a conductive component, a metal frame, a conductive member, and a pressing member. The conductive component is disposed on an electronic board in a first direction and has a board face. The metal frame has a frame face intersecting the board face of the electronic board. The conductive member is disposed over the conductive component in the first direction and electrically connected to each of the conductive component and the metal frame. The pressing member presses the conductive member against the conductive component in the first direction.

Claims (29)

1 . A circuit board device comprising:

a conductive component on an electronic board in a first direction, the conductive component having a board face;

a metal frame having a frame face intersecting the board face of the electronic board;

a conductive member over the conductive component in the first direction, the conductive member electrically connected to each of the conductive component and the metal frame, the conductive member having an elasticity, and the conductive member being adhered to the conductive component via a conductive double-sided adhesive tape; and

a pressing member to press the conductive member against the conductive component in the first direction, the pressing member having an L shape having

a first face over the conductive member, and

a second face over the metal frame.

2 . The circuit board device according claim 1 ,

wherein the pressing member has:

the first face to press the conductive member against the conductive component; and

an opening in the first face, and

the conductive member includes:

a pressed portion contacting the first face of the pressing member and elastically deformable by a pressure applied by the pressing member; and

a non-pressed portion entering through the opening.

3 . The circuit board device according to claim 2 ,

wherein a length of the opening is longer than a length of the conductive member in a second direction intersecting the first direction.

4 . The circuit board device according to claim 2 ,

wherein the pressing member has the opening in the second face continuous from the opening in the first face, and

the non-pressed portion of the conductive member contacts the second face in the first direction.

5 . The circuit board device according to claim 4 ,

wherein a length of the opening in the second face is longer than a length of the conductive member in a second direction intersecting the first direction.

6 . The circuit board device according to claim 4 ,

wherein the second face of the pressing member is adhered to the metal frame via a conductive double-sided adhesive tape.

7 . The circuit board device according to claim 2 , further comprising:

multiple conductive members including the conductive member, each of the multiple conductive members having the non-pressed portion entering through the opening.

8 . The circuit board device according to claim 7 , further comprising multiple openings including the opening,

wherein the multiple conductive members respectively include multiple non-pressed portions including the non-pressed portion, and

the multiple non-pressed portions respectively enter through the multiple openings.

9 . An image forming apparatus comprising the circuit board device according to claim 1 .