Abstract: While efficient assembly performance of an electrical connector is obtained, good operability can be also obtained by a simple configuration. Good shielding performance with respect to transmission paths are configured to be obtained by a simple configuration in which movement of an actuator causes both shield shells to contact each other by covering at least part of outer surfaces of an insulating housing and the actuator by the shield shells consisting of electrically-conductive metal members, causing the actuator-side shield shell moved to an action position to contact the insulating-housing-side shield shell, and continuously covering the transmission paths, which are from a signal transmission medium to a printed wiring board through electrically-conductive contact members.

Abstract: Electromagnetic shielding about a part connected with a wiring substrate is easily and reliably carried out by a simple configuration without impairing productivity. A fixed shield plate provided at a shield shell member of an electric connector mounted on a wiring substrate is disposed to be opposed to a vicinity of a substrate connecting leg portion of a contact member. A movable shield plate covering a shell opening by a moving operation is provided. At least the substrate connecting leg portion of the contact member is covered from an outer side by fixed and movable shield plates, thereby well carrying out electromagnetic shielding (shielding) with respect to the part connected with the wiring substrate. Until the movable shield plate is subjected to the moving operation, the part connected with the wiring substrate can be checked well through the shell opening.

Abstract: To allow easy and reliable establishment of electromagnetic shielding regarding a portion connected to a circuit board with a simple structure, a shield plate provided to a fit-in holding member which keeps a state of fitting in a counterpart connector externally covers board connection legs of counterpart contact members and, simultaneously with an operation of rotating the fit-in holding member when connectors fit together, electromagnetic shielding with respect to the board connection legs is immediately established. Also, a ground connecting units provided to the fit-in holding member are connected to ground connection conductive paths provided at positions near the board connection legs of the counterpart contact members, thereby obtaining favorable electromagnetic shielding characteristics. Also, a connected state at the board connection legs can be favorably confirmed.

Abstract: Electromagnetic shielding about a part connected with a wiring substrate is easily and reliably carried out by a simple configuration without impairing productivity. A fixed shield plate provided at a shield shell member of an electric connector mounted on a wiring substrate is disposed to be opposed to a vicinity of a substrate connecting leg portion of a contact member. A movable shield plate covering a shell opening by a moving operation is provided. At least the substrate connecting leg portion of the contact member is covered from an outer side by fixed and movable shield plates, thereby well carrying out electromagnetic shielding (shielding) with respect to the part connected with the wiring substrate.

Abstract: To allow easy and reliable establishment of electromagnetic shielding regarding a portion connected to a circuit board with a simple structure, a shield plate provided to a fit-in holding member which keeps a state of fitting in a counterpart connector externally covers board connection legs of counterpart contact members and, simultaneously with an operation of rotating the fit-in holding member when connectors fit together, electromagnetic shielding with respect to the board connection legs is immediately established. Also, a ground connecting units provided to the fit-in holding member are connected to ground connection conductive paths provided at positions near the board connection legs of the counterpart contact members, thereby obtaining favorable electromagnetic shielding characteristics. Also, a connected state at the board connection legs can be favorably confirmed.

Abstract: While efficient assembly performance of an electrical connector is obtained, good operability can be also obtained by a simple configuration. Good shielding performance with respect to transmission paths are configured to be obtained by a simple configuration in which movement of an actuator causes both shield shells to contact each other by covering at least part of outer surfaces of an insulating housing and the actuator by the shield shells consisting of electrically-conductive metal members, causing the actuator-side shield shell moved to an action position to contact the insulating-housing-side shield shell, and continuously covering the transmission paths, which are from a signal transmission medium to a printed wiring board through electrically-conductive contact members.

Abstract: To well prevent a conductive contact from being peeled off with a simple structure, a rear end portion of the conductive contact to which a cable-shaped signal transmission medium is coupled is directly held by a contact engaging part. Even when an external force due to so-called flapping or the like is added from the cable-shaped signal transmission medium to the conductive contact, the conductive contact is well prevented from being peeled off. Also, a guide inclined surface for positioning the cable-shaped signal transmission medium is provided at the contact engaging part, and the cable-shaped signal transmission medium can be stably mounted along the guide inclined surface of the contact engaging part, thereby easily and accurately performing operations at the time of mounting, such as positioning.

Abstract: A cam portion is provided at a turning shaft portion of a fit-turning arm which holds a fitted state of a connector with a mating connector, a cam-biasing device is provided on a connector main body, and the fit-turning arm is made hard to depart from a “fit-acting position” by applying a turning biasing force to the cam portion in a direction of holding the fit-turning arm which has been turned to the “fit-acting position” at the “fit-acting position”.

Abstract: An electrical connector including a housing provided thereon with an opening through which a flat circuit device is inserted into the housing, a plurality of conductive contacts arranged on the housing, and a holding member formed in a body on the housing to be operative to hold the flat circuit device inserted in the housing and then to release the flat circuit device from holding by the holding member, wherein the holding member has a movable arm portion extending from an inside surface portion of the housing, and the movable arm portion is provided thereon with an engaging portion operative to engage with the flat circuit device inserted in the housing for holding the same and a releasing portion protruding from the movable arm portion through an aperture provided on the housing toward the outside of the housing and is operative to move the movable arm portion for disengaging the engaging portion from the flat circuit device.

Abstract: An electrical connector including a housing provided thereon with an opening through which a flat circuit device is inserted into the housing, a plurality of conductive contacts arranged on the housing, and a holding member formed in a body on the housing to be operative to hold the flat circuit device inserted in the housing and then to release the flat circuit device from holding by the holding member, wherein the holding member has a movable arm portion extending from an inside surface portion of the housing, and the movable arm portion is provided thereon with an engaging portion operative to engage with the flat circuit device inserted in the housing for holding the same and a releasing portion protruding from the movable arm portion through an aperture provided on the housing toward the outside of the housing and is operative to move the movable arm portion for disengaging the engaging portion from the flat circuit device.

Abstract: An electrical connector including a housing provided thereon with an opening through which a flat circuit device is inserted into the housing, a plurality of conductive contacts arranged on the housing, and a holding member attached to the housing to be operative to hold the flat circuit device inserted in the housing and then to release the flat circuit device from holding by the holding member, wherein the holding member has a base portion fixed to the housing and a movable arm portion extending from the base portion, and the movable arm portion is provided thereon with an engaging portion operative to be put in engagement with the flat circuit device inserted in the housing so as to hold the same and a releasing portion protruding from the movable arm portion to the outside of the housing and is operative to move for releasing the engaging portion from the engagement with the flat circuit device when the releasing portion is manipulated to be shifted in position.

Abstract: It is made possible to maintain a fitted state with a mating connector excellently by a fit-turning arm. A cam portion is provided at a turning shaft portion of a fit-turning arm which holds a fitted state of a connector with a mating connector, a cam-biasing device is provided on a connector main body, and the fit-turning arm is made hard to depart from a “fit-acting position” by applying a turning biasing force to the cam portion 13d in a direction of holding the fit-turning arm which has been turned to the “fit-acting position” at the “fit-acting position”, so that a fitted state of both the connectors are maintained excellently.

Abstract: To make it possible to improve the grounding property of a conductive shell with a simple configuration. Connector-side ground connecting members (ground spring pieces) 24c provided in a conductive ground shell 24 of a receptacle connector 2 and board-side ground connecting members (rear holddowns) 24b are disposed such that they extend approximately in parallel with a fitting direction of a plug connector 1 serving as a fitting mate for the receptacle connector 2, and ground currents flowing between the connector-side ground connecting members 24c and the board-side ground connecting members 24b take the shortest straight courses so that occurrence of electrical loss or an undesired inducing phenomenon is substantially suppressed.

Abstract: To well prevent a conductive contact from being peeled off with a simple structure, a rear end portion of the conductive contact to which a cable-shaped signal transmission medium is coupled is directly held by a contact engaging part. Even when an external force due to so-called flapping or the like is added from the cable-shaped signal transmission medium to the conductive contact, the conductive contact is well prevented from being peeled off. Also, a guide inclined surface for positioning the cable-shaped signal transmission medium is provided at the contact engaging part, and the cable-shaped signal transmission medium can be stably mounted along the guide inclined surface of the contact engaging part, thereby easily and accurately performing operations at the time of mounting, such as positioning.

Abstract: To make it possible to improve the grounding property of a conductive shell with a simple configuration. Connector-side ground connecting members (ground spring pieces) 24c provided in a conductive ground shell 24 of a receptacle connector 2 and board-side ground connecting members (rear holddowns) 24b are disposed such that they extend approximately in parallel with a fitting direction of a plug connector 1 serving as a fitting mate for the receptacle connector 2, and ground currents flowing between the connector-side ground connecting members 24c and the board-side ground connecting members 24b take the shortest straight courses so that occurrence of electrical loss or an undesired inducing phenomenon is substantially suppressed.