Abstract: An engagement amount of a latch lock part with respect to a signal transmission medium is sufficiently and constantly ensured by a simple configuration. A reference abutting surface having a stepped shape projecting toward an upper surface of the signal transmission medium compared with other part of an inner wall surface of a medium insertion path is formed at part of the inner wall surface of the medium insertion path facing the upper surface of the signal transmission medium, the upper surface of the signal transmission medium is caused to abut at least the reference abutting surface of the medium insertion path, and the position of the upper surface of the signal transmission medium is determined in the thickness direction while using the reference abutting surface as a reference.

Abstract: With a simple configuration, plastic deformation of contacts can be prevented while avoiding increase in size, and occurrence of failure in electrical connection due to dust can be well prevented. In an elastic beam-like member of a first-side contact extending like a cantilever in an insulating housing, a bent extending part which substantially increases the span length of the elastic beam-like member is formed to be bent to have a curved shape at a root part serving as a part coupled to a fixing base part. A through hole is formed in a region including at least part of the bent extending part to ensure flexibility while enhancing elasticity of the contact, thereby preventing permanent deformation of the contact. Meanwhile, dust which has entered the equipment is caused to fall through the through hole, thereby ensuring electrical conductivity well.

Abstract: The electrical connector includes a connector housing having a slot into which a circuit board is to be inserted, and a plurality of connector terminals to be inserted into the connector housing, the connector housing including terminal spaces into which the connector terminals are inserted, and partition walls partitioning the terminal spaces from adjacent ones, the connector terminals each including a sheath to be inserted into one of the terminal spaces, and a resilient contact making electrical contact with the circuit board, the electrical connector including a convex and a concave for preventing the terminal spaces and the circuit board from falling apart from each other, the convex being formed on opposite sidewalls of the sheath, and the concave being formed at the partition walls.

Abstract: The electric connector includes a housing having an opening and a bottom, the housing being formed at the bottom with a recess, at least one electric terminal projecting through a bottom of the recess into the housing, and a sealant layer composed of cured light-curing resin, the sealant layer at least partially filling the recess therewith.

Abstract: The electric connector includes a housing having an opening and a bottom, the housing being formed at the bottom with a recess, at least one electric terminal projecting through a bottom of the recess into the housing, and a seal composed of light-curing resin, the seal at least partially filling the recess therewith for hermetically sealing the electric terminal.

Abstract: A circuit-terminal connecting device comprising a first connector having a first housing fixed to a main circuit board and first contacts supported by the first housing to be connected with first circuit-terminals provided on the main circuit board and a second connector having a second housing attached to a flat circuit member and second contacts supported by the second housing to be connected with second circuit-terminals provided on the flat circuit member. The first housing of the first connector fits into a hole formed in the second housing of the second connector so as to create an electrical piling connection between the main circuit board and the flat circuit member wherein the flat circuit member is laid on top of the main circuit board and the first circuit-terminals are electrically connected with the second circuit-terminals through the first and second connectors.

Abstract: With a simple configuration, increase in size can be avoided, usage durability is improved, and occurrence of insufficient electrical connection caused by dust can be prevented well. A crank part is provided in at least one of both contacts including elastic beam-like members. Both of the contacts are provided with cut-away parts, which substantially increase the span lengths of the elastic beam-like members, and gaps between the contacts and an insulating housing which ensure flexibility of the elastic beam-like members to ensure flexibility and prevent permanent deformation of the contacts while enhancing elasticity of the contacts. Dust which has entered the interior thereof is moved along the crank part to ensure electrical conductivity well, which is an employed configuration.