Dai-ichi Seiko Co., Ltd.

I-pex Co., Ltd.

Ipex Inc.

Kosuke Ozeki

Masataka Muro

Yoshinobu Shimada

Electromagnetic shielding about both of electric connectors, which are in a mutually mated state, can be sufficiently carried out by a simple configuration. Shield wall portions composed of electrically-conductive members opposed to contact connecting portions (board connecting portions) of a plurality of contact members arranged in multipolar shapes are provided; electromagnetic shielding functions with respect to the contact connecting portions in the respective electric connectors are obtained well by the respective shield wall portions; and, when both of the electric connectors are mated with each other, the shield wall portions are configured to be in an inner/outer double disposition relation in which they are opposed to each other and efficiently block the gaps between the shield wall portions and wiring boards so that sufficient EMI measures can be expected.

Board-connecting electric connector device

Electrical connector

The connection state of contact members with respect to a wiring board can be easily visually checked by a simple configuration. A shield wall portion composed of an electrically-conductive member opposed to contact connecting portions (board connecting portions) of a plurality of contact members arranged in a multipolar shape is provided; each of ground connecting portions provided in the shield wall portion is disposed at the part between the contact connecting portions, which are adjacent to each other; a lateral check window composed of the space which enables visual check of the contact connecting portions is formed in the interval region in which the ground connecting portions are adjacent to each other; an electromagnetic shielding function with respect to the contact connecting portions is obtained by the shield wall portion; and, at the same time, the connection state of the contact connecting portions with respect to the wiring board can be visually checked through the lateral check window provided in the shield wall portion.

Board-connecting electric connector

A good mating state can be obtained while reducing interference of transmission signals by a simple configuration. A contact portion is provided at a single location on each of mating recessed portions of signal contact members arranged in a multipolar shape, contact portions are provided at a plurality of locations for a mating recessed portion of an integrated power-source contact member, and signal transmission is carried out through the single-location contact portion provided at the single location for each of the mating recessed portions of the signal contact members. As a result, particularly, interference in high-frequency transmission is reduced to obtain good transmission characteristics, while sufficient mating retention force is configured to be obtained by causing the contact portions at the plurality of locations provided on the mating recessed portion of the power-source contact member to be in a state in which the contact portions are in contact with contact portions of a mating counterpart by the plurality of locations.

A housingcomprises a lower receiverextending from the back to front of a loading slotand comprising a flat plate-like mounting surface Sa extending in the array direction of lower beams and on which the lower beams are mounted. Furthermore, the housingcomprises ribsprovided on the mounting surface Sa and extending from the back to front of the loading slotto form grooves Za for retaining the lower beams. The ends of the ribsthat are situated in the front of the loading slotare disposed closer to the back of the loading slotthan the end of the lower receiverthat is situated in the front of the loading slot

Either one of a plug connector or a receptacle connector includes a receiver which is provided at a location corresponding to a fitting member inserted in a through hole when the connector parts are engaged with each other, and which receives, in an inner space via an opening, a catching member to be fitted with the inserted fitting member. In addition, the one connector includes a holder which holds the catching member received in the receiver by blocking off the opening of the receiver, and which includes a receiving hole permitting the inserted fitting member in the through hole to reach the inner space, and to be fitted with the catching member.

Into one housing, another housing interlocks, and a penetrating hole into which a lock member for maintaining the interlocking state between the connectors is insertable and from which the inserted lock member is removable when releasing the interlocking state is formed in the other housing. A lock section is attached at a position corresponding to the penetrating hole in the inner wall of the one housing facing the other housing when the connectors are interlocked with each other, and is composed to be lockable with the lock member inserted into the penetrating hole. A connector is a pair of members attached to both ends of the lock section facing each other so as to interpose the lock section in between, and is connected to a circuit board positioned on the outside of the first housing in a state covering a portion of the one housing along with the lock section.

The operation of a lock member and the check thereof are easily and reliably enabled with a simple configuration while achieving downsizing. When a movable lock engagement part is moved along a lock guide part in a state in which a fixed lock latch part provided on either one of first and second electrical connectors is in an arrangement relation that the fixed lock latch part is overlapped with the lock guide part provided on the other one in a mating direction, the movable lock engagement part is engaged with or released from the fixed lock latch part. An operation of engaging or releasing the movable lock engagement part with/from the fixed lock latch part is carried out in a state in which the operation can be visually checked through a housing-operation opening and facing the electrical connectors.

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Fukuoka, Japan

Kosuke Ozeki