US 12,308,540 B2
Wire-to-circuit board connection structure and a circuit board-attached cable
Masanori Sagawa, Tokyo (JP)
Assigned to Proterial, Ltd., Tokyo (JP)
Filed by Hitachi Metals, Ltd., Tokyo (JP)
Filed on Aug. 4, 2022, as Appl. No. 17/881,031.
Claims priority of application No. 2021-129784 (JP), filed on Aug. 6, 2021.
Prior Publication US 2023/0040942 A1, Feb. 9, 2023
Int. Cl. H01R 12/70 (2011.01); H01R 12/75 (2011.01)
CPC H01R 12/7005 (2013.01) [H01R 12/75 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A wire-to-circuit board connection structure between wires including conductive cores, respectively covered with insulative coatings, and a circuit board to which the respective cores of the wires are connected, comprising:
a guide member attached to the circuit board, the guide member including guide holes into which the respective cores of the wires are inserted,
a sheath covering the wires collectively, wherein an end of the sheath is held by a holder together with portions of the respective wires, and the wires are led from the holder,
wherein the circuit board includes through-holes into which the respective cores of the wires passed through the guide holes are inserted,
wherein the guide holes include tapered holes configured in such a manner that each inner diameter is reduced as being closer to the circuit board, and
wherein the cores of the wires are led from the holder in a state where the cores are covered by the insulative coatings, respectively, and a window section, through which the insulative coatings can be visually observed, is provided between the holder and the guide member.