Mounting board including a flat-type electrical element and capable of being reduced in size, and lead-attached electric element that is flat in shape and has a lead bonded to each electrode face
View Patent ↗A lead-attached electrical element and a mounting board to which the lead-attached electrical element is mounted both contribute to a reduction in the size of the mounting board as well as facilitate rework. The lead-attached electrical element is constituted from an electrical element and two leads. Each lead includes a main portion which is bonded to a respective electrode face of the electrical element, and a bent portion which is inclined with respect to the main portion. The mounting board is constituted from a PC (printed circuit) board and the lead-attached electrical element. Two conductive lands are provided on a surface of the PC board. The lead-attached electrical element has been inserted into an aperture in the PC board, and bent portions of the leads attached to the electrical element are bonded to the conductive lands so that the electrical element is suspended in the aperture by the leads.
1. A mounting board comprising:
a printed circuit board having two conductive lands provided on a surface thereof, and having an aperture provided in a thickness direction of the printed circuit board;
an electrical element that is flat in shape and has two surfaces, each surface being provided with an electrode face; and
two leads, each including (i) a main portion that is bonded to a respective one of the electrode faces and (ii) a bent portion that is inclined with respect to the main portion and is bonded to a respective one of the conductive lands, wherein the electrical element has been inserted into the aperture and is suspended therein by the two leads, wherein
at least one of the leads further includes an extending portion that extends to an area outward of a periphery of each electrode face, and
the extending portion includes a top-plate portion that has been formed by bending an end of the extending portion in a direction that intersects an extending direction of the extending portion.
2. The mounting board of claim 1 , wherein
the bent portions of the leads each have a substantially horizontal surface.
3. The mounting board of claim 1 , wherein
each of the bent portions has been bonded to the respective one of the conductive lands by solder.
4. A mounting board comprising:
a printed circuit board having two conductive lands provided on a surface thereof, and having an aperture provided in a thickness direction of the printed circuit board;
an electrical element that is flat in shape and has two surfaces, each surface being provided with an electrode face; and
two leads, each including (i) a main portion that is bonded to a respective one of the electrode faces and (ii) a bent portion that is inclined with respect to the main portion and is bonded to a respective one of the conductive lands, wherein the electrical element has been inserted into the aperture and is suspended therein by the two leads, wherein
the bent portion of at least one of the leads has been formed by cutting and bending a rectangular plate, the bent portion of the at least one of the leads has an aperture provided therein, and
a plating layer has been formed on a main face of the bent portion of the at least one of the leads and on an inner wall of the aperture provided therein.
5. The mounting board of claim 4 , wherein
the bent portions of the leads each have a substantially horizontal surface.
6. The mounting board of claim 4 , wherein
each of the bent portions has been bonded to the respective one of the conductive lands by solder.
7. A mounting board comprising:
a printed circuit board having two conductive lands provided on a surface thereof, and having an aperture provided in a thickness direction of the printed circuit board;
an electrical element that is flat in shape and has two surfaces, each surface being provided with an electrode face; and
two leads, each including (i) a main portion that is bonded to a respective one of the electrode faces and (ii) a bent portion that is inclined with respect to the main portion and is bonded to a respective one of the conductive lands, wherein the electrical element has been inserted into the aperture and is suspended therein by the two leads, wherein
the electrical element is a coin-type battery.
8. The mounting board of claim 7 , wherein
the bent portions of the leads each have a substantially horizontal surface.
9. The mounting board of claim 7 , wherein
each of the bent portions has been bonded to the respective one of the conductive lands by solder.
10. A lead-attached electrical element comprising:
an electrical element that is flat in shape and has two surfaces, each surface provided with an electrode face; and
two leads, each including (i) a main portion bonded to a respective one of the electrode faces and (ii) a bent portion inclined with respect to the main portion,
wherein the electrical element is a coin-type battery,
wherein at least one of the leads has the bent portion and forms an acute angle with the main portion, and
the bent portion is plate-shaped and includes a substantially horizontal surface.