Abstract: An electric connector set having an impedance adjustment function and a mounting structure, and including a first connector that mounts onto a first circuit board, and a second connector that mounts onto a second circuit to be insertable into and withdrawable from the first connector in an insertion-withdrawal direction. The first connector includes a first connection terminal having first mounting portions to mount onto first land portions on the first circuit board and a first insulating member that holds the first connection terminal. The second connector includes a second connection terminal having second mounting portions to mount onto second land portions on the second circuit board and a second insulating member that holds the second connection terminal. In an engagement state of the electric connector set, the first mounting portions oppose the second mounting portions and overlap the second mounting portions as viewed in the insertion-withdrawal direction.

Abstract: An electrical connector which suppresses radiation noise at a high frequency from an inner terminal, and an electrical connector set provided with the electrical connector. An electrical connector includes an inner terminal; an outer terminal surrounding the inner terminal; and a holding member that has electrically insulating properties, extends in the long-side direction and the short-side direction, and is configured to hold the inner terminal and the outer terminal. The holding member has a first surface located on the first side that is the side facing a mounting circuit board, a second surface located on the second side opposite from the first side, and an inner side surface and an outer side surface connecting the first surface to the second surface. The outer terminal includes a first part extending along the first surface, and an inner part connected to the first part and extending along the inner side surface.

Abstract: In a connector, a right front corner portion of a frame portion is not covered with a ground terminal when viewed in an up and down direction, a recessed portion is provided on a top surface of the frame portion, and the connector is mounted on a circuit board such that a bottom surface of the resin body member is opposed to the circuit board. Part of the frame portion surrounding the recessed portion when viewed in the up and down direction is not present.

Abstract: An electrical connector set includes first and second connectors, in which the first connector has a first connection terminal, a first high-frequency connection terminal transmitting a high frequency signal, and a first external grounding member surrounding the first high-frequency connection terminal, the second connector has a second connection terminal, a second high-frequency connection terminal, and a second external grounding member surrounding the second high-frequency connection terminal. At a time of fitting, the second external grounding member is located on an inner side of the first external grounding member, the first and second connection terminals are located on an outer side of the first external grounding member, the second external grounding member is closed in a peripheral shape to surround the first and second high-frequency connection terminals, and first and second mounting parts are located on an inner side of the second external grounding member.

Abstract: A first connector of a connector set includes first internal terminals, a first insulation member that fixes the first internal terminals, and first external terminals having a surrounding shape portion that surrounds the first internal terminals and the first insulation member. The second connector includes second internal terminals, a second insulation member that fixes the second internal terminals, and a second external terminal having a surrounding shape portion that surrounds the second internal terminals and the second insulation member. The first external terminals have cutout portions at a portion that is part of the surrounding shape portion of the first external terminal and faces a ground conductor formed at a mounting position of the second connector of the second circuit substrate.

Abstract: An electrical connector includes an insulating member, plural signal terminals to be fixed and held to the insulating member, and plural ground terminals to be elastically held to the insulating member. The signal terminals and the ground terminals are disposed in a first direction of the insulating member. Regarding the ground terminal and the signal terminal adjacent to each other as viewed from the first direction, the signal terminal length of the signal terminal in a second direction, which is perpendicular to the first direction, is shorter than the ground terminal length of the ground terminal in the second direction. The signal terminal includes a signal terminal contact engaging portion. The signal terminal contact engaging portion is positioned within a range of the ground terminal length of the ground terminal as viewed from the first direction.

Abstract: An electric connector set having an impedance adjustment function and a mounting structure, and including a first connector that mounts onto a first circuit board, and a second connector that mounts onto a second circuit to be insertable into and withdrawable from the first connector in an insertion-withdrawal direction. The first connector includes a first connection terminal having first mounting portions to mount onto first land portions on the first circuit board and a first insulating member that holds the first connection terminal. The second connector includes a second connection terminal having second mounting portions to mount onto second land portions on the second circuit board and a second insulating member that holds the second connection terminal. In an engagement state of the electric connector set, the first mounting portions oppose the second mounting portions and overlap the second mounting portions as viewed in the insertion-withdrawal direction.

Abstract: An electrical connector set includes first and second connectors, in which the first connector has a first connection terminal, a first high-frequency connection terminal transmitting a high frequency signal, and a first external grounding member surrounding the first high-frequency connection terminal, the second connector has a second connection terminal, a second high-frequency connection terminal, and a second external grounding member surrounding the second high-frequency connection terminal. At a time of fitting, the second external grounding member is located on an inner side of the first external grounding member, the first and second connection terminals are located on an outer side of the first external grounding member, the second external grounding member is closed in a peripheral shape to surround the first and second high-frequency connection terminals, and first and second mounting parts are located on an inner side of the second external grounding member.

Abstract: A multipolar connector set includes a first connector and a second connector fitted together. The first connector includes first inner terminals arranged in multiple rows and a first insulating member configured to hold the first inner terminals, and the second connector includes second inner terminals arranged in multiple rows and a second insulating member configured to hold the second inner terminals. The multipolar connector set further includes a conductive shielding member disposed between adjacent rows of the first or second inner terminals in a fitted state where the first connector and the second connector are fitted together, with the first inner terminals being in contact the second inner terminals.

Abstract: A multipolar connector set includes a first connector and a second connector fitted together. The first connector includes first inner terminals arranged in multiple rows and a first insulating member configured to hold the first inner terminals, and the second connector includes second inner terminals arranged in multiple rows and a second insulating member configured to hold the second inner terminals. The multipolar connector set further includes a conductive shielding member disposed between adjacent rows of the first or second inner terminals in a fitted state where the first connector and the second connector are fitted together, with the first inner terminals being in contact the second inner terminals.

Abstract: A multipolar connector set includes a first connector and a second connector fitted together. The first connector includes first inner terminals arranged in multiple rows and a first insulating member configured to hold the first inner terminals, and the second connector includes second inner terminals arranged in multiple rows and a second insulating member configured to hold the second inner terminals. The multipolar connector set further includes a conductive shielding member disposed between adjacent rows of the first or second inner terminals in a fitted state where the first connector and the second connector are fitted together, with the first inner terminals being in contact the second inner terminals.

Abstract: A connector set includes a first connector and a second connector. The first connector has a plurality of first connection terminals, a first anchoring terminal, and a first insulative member, and the second connector has a plurality of second connection terminals, a second anchoring terminal, and a second insulative member. When the first connector and the second connector are coupled, the plurality of first connection terminals and the plurality of second connection terminals respectively make contact at the first contact portions and the second contact portions. The first anchoring terminal and the second anchoring terminal make contact with each other to maintain the coupling between the first connector and the second connector, and have a ring shape that encircles a periphery of the first contact portions and the second contact portions when the first connector and the second connector are coupled.

Abstract: In a coaxial connector, a body part includes an upper surface, a bottom surface, a side surface, and a hole provided in the upper surface so that a substantially rodlike probe is to be inserted therein from an upper side. A fixed terminal is fixed to the body part. A movable terminal includes a lead portion disposed on the side surface, a fixed portion bent relative to the lead portion to extend in a horizontal direction and fixed to the body part, and a leaf spring portion bent relative to the lead portion to extend in the horizontal direction and contacting the fixed terminal from a lower side. The leaf spring portion is separated from the fixed terminal when pressed down by the probe.

Abstract: A connector set includes a first connector and a second connector. The first connector has a plurality of first connection terminals, a first anchoring terminal, and a first insulative member, and the second connector has a plurality of second connection terminals, a second anchoring terminal, and a second insulative member. When the first connector and the second connector are coupled, the plurality of first connection terminals and the plurality of second connection terminals respectively make contact at the first contact portions and the second contact portions. The first anchoring terminal and the second anchoring terminal make contact with each other to maintain the coupling between the first connector and the second connector, and have a ring shape that encircles a periphery of the first contact portions and the second contact portions when the first connector and the second connector are coupled.

Abstract: In a coaxial connector, a body part includes an upper surface, a bottom surface, a side surface, and a hole provided in the upper surface so that a substantially rodlike probe is to be inserted therein from an upper side. A fixed terminal is fixed to the body part. A movable terminal includes a lead portion disposed on the side surface, a fixed portion bent relative to the lead portion to extend in a horizontal direction and fixed to the body part, and a leaf spring portion bent relative to the lead portion to extend in the horizontal direction and contacting the fixed terminal from a lower side. The leaf spring portion is separated from the fixed terminal when pressed down by the probe.

Abstract: There is provided a coaxial connector having a good radio-frequency characteristic includes a main body having a hole, or opening for allowing a probe to be inserted, a fixed terminal is fixed to the main body, a movable terminal including a fixed portion fixed to the main body and a plate spring portion extending from the fixed portion toward the fixed terminal. The plate spring portion is in contact with the fixed terminal and in contact with the main body at its tips. The plate spring portion can be displaced by the probe in a direction away from the fixed terminal.

Abstract: There is provided a coaxial connector having a good radio-frequency characteristic includes a main body having a hole, or opening for allowing a probe to be inserted, a fixed terminal is fixed to the main body, a movable terminal including a fixed portion fixed to the main body and a plate spring portion extending from the fixed portion toward the fixed terminal. The plate spring portion is in contact with the fixed terminal and in contact with the main body at its tips. The plate spring portion can be displaced by the probe in a direction away from the fixed terminal.

Abstract: A combustion process sensor for detecting combustion processes occurring in a combustion chamber of an engine has a generally tubular mounting casing to be screwed into a threaded hole in the combustion chamber wall and a quartz-glass rod axially extending in the mounting casing and held in position therein. The casing includes two axially aligned generally tubular members rigidly secured together at their own ends. The quartz-glass rod has a first portion remote from a sensing end thereof adapted to be exposed to combustion flame in the combustion chamber, and a second portion between the first portion and the sensing end. The first portion is secured to one of the two tubular members of the casing, while the second portion is supported from the casing only by a vibration damping material disposed in engagement with the outer peripheral surface of the quartz-glass rod and the inner peripheral surface of the casing.