A connector includes a flat plate portion and one or more guide pins protruding formed on a surface of the flat plate portion, each of the one or more guide pins having a first fitting portion disposed on a root side of the guide pin and fitted with a first circuit board and a second fitting portion disposed on a tip side of the guide pin and fitted with a second circuit board, the first fitting portion being larger in size than the second fitting portion in a direction perpendicular to a connecting direction.

A composite flexible printed wiring board includes a first flexible printed wiring board having an insulating layer, conductor layers and a first metal block fitted in a hole penetrating through the conductor layers and insulating layer, and a second flexible printed wiring board having an insulating layer, conductor layers and a second metal block fitted in a hole penetrating through the conductor layers and insulating layer. The first flexible printed wiring board and the second flexible printed wiring board have a welded portion formed by welding the first metal block and the second metal block and joining the first metal block and the second metal block such that the welded portion is joining the first flexible printed wiring board and the second flexible printed wiring board.

An electrical power or electronic data distribution system includes a power supply or electronic data module that receives electrical power or electronic data signals from a source, a flat-conductor strip for routing electrical power or electronic data along a generally planar surface such as a floor, wall, room divider, or ceiling, and a power or data output block. The power supply has a pair of power outfeed conductors, and the flat-conductor strip has a pair of generally planar electrical conductors in spaced arrangement, which are electrically coupled to respective power outfeed conductors. The output block has a pair of power-receiving contacts along a lower surface thereof, and an electrical receptacle at the output block, the receptacle being positioned above the lower surface. The power-receiving contacts electrically engage respective planar electrical conductors and convey electrical power to respective contacts of the electrical receptacle, for powering electrical or electronic devices.

A flexible printed circuit board includes a first flexible unit and a second flexible unit, where the first flexible unit includes a first connecting portion and a plurality of first wires, and each of the first wires includes a welding point located at the first connecting portion; each of the welding points is provided with a first connecting structure, and the welding point is electrically connected to the first connecting structure; the second flexible unit includes a first face and a second face, where the first face is located on a side of the second flexible unit facing away from the first flexible unit; the second flexible unit further includes a second connecting portion and a plurality of second wires; the second connecting portion is provided with a plurality of through holes, and the plurality of through holes are provided in one-to-one correspondence to the plurality of second wires.

A connection device for connecting a multicore branch line to a flat cable has a connection device housing that allows the flat cable to pass through, and penetration contacts for contacting the flat cable without stripping of the insulation. The penetration contacts are situated in the connection device housing. The connection device also has an electrical disconnection point between the branch line and the flat cable, and at least one seal in the area of at least one opening of the connection device housing for protection from penetration of dust and/or water. The connection device housing is made, at least partially, of plastic, and on its outer side or inner side is coated with a diffusion barrier layer, wherein the diffusion barrier layer includes one or more layers, one of which is a metallic layer.

A first aspect relates to cable connectors for connecting two multicore cables, namely, two flat cables or one flat cable and one round cable. The cable connector includes a clamping sleeve, having a ceramic insulator with at least two openings, one on each side of the clamping sleeve, for accommodating core conductors. The clamping sleeve includes at least two contact inserts that pass through the clamping sleeve at corresponding openings on both sides. Clamping elements are associated with each of the at least two contact inserts in order to clamp the core conductors on one side or the other side of the contact inserts, and thus to establish electrical contact between the clamping sleeve and the multicore flat cable or round cable, thereby connecting the two cables. The cable connector also includes a heat shrink tube that envelops the entering portions of the cables and the clamping sleeve, and in the shrunken state lies tightly against an outer contour of the clamping sleeve and an outer contour of the portion of the cables that enter the clamping sleeve.

A second aspect relates to a cable termination for the insulating termination of a multicore flat cable. The cable termination includes a clamping sleeve that includes a ceramic insulator with at least two openings on one side of the clamping sleeve for accommodating core conductors. The clamping sleeve includes at least two contact inserts situated behind the openings, a clamping element being associated with each of the at least two contact inserts in order to clamp the core conductors on the contact inserts and thus establish mechanical fixing of the core conductors on the clamping sleeve so as to electrically insulate them from one another, and thus to terminate the cable. The cable termination also includes a heat shrink tube that envelops the entering portion of the cable and the clamping sleeve, and in the shrunken state lies tightly against an outer contour of the clamping sleeve and an outer contour of the portion of the cable that enters the clamping sleeve.

A connection device with floatable self-adjusting contacts includes a first main body, a plurality of first and second contact point groups, a second main body, and a plurality of conducting boards (pin boards). The first and second contact groups are respectively disposed on the first and second bodies. The floating board is disposed on the second main body in a floating manner. The conducting board has an insulated main body and a plurality of conducting pins which are disposed on the insulated main body in a floating manner. The conducting pin has a first conducting portion contacting the first contact point, and a second conduct portion contacting the second contact point. The first and second conduct portions respectively have an arc-shaped periphery and an elastic arm. The conducting pins can respectively self-adjust to achieve an optimal downward contacting pressure.

A connection device with floatable self-adjusting contacts includes a first main body, a plurality of first and second contact point groups, a second main body, and a plurality of conducting boards (pin boards). The first and second contact groups are respectively disposed on the first and second bodies. The floating board is disposed on the second main body in a floating manner. The conducting board has an insulated main body and a plurality of conducting pins which are disposed on the insulated main body in a floating manner. The conducting pin has a first conducting portion contacting the first contact point, and a second conduct portion contacting the second contact point. The first and second conduct portions respectively have an arc-shaped periphery and an elastic arm. The conducting pins can respectively self-adjust to achieve an optimal downward contacting pressure.

A pressure adaptive contact structure for a flexible circuit board is disclosed, in which the flexible circuit board is provided with a weakening portion or a partly surrounding weakening portion between a plurality of first contact pads so that contact surfaces of the plurality of first contact pads are respectively contactable with corresponding ones of contact points to generate contact pressing forces applied to the contact points in a manner that the contact pressing forces are adaptively adjustable by the weakening portion to accommodate height differences between adjacent ones of the first contact pads to prevent the first contact pads from being stretched and pulled with respect to each other.

A composite flexible printed wiring board includes a first flexible printed wiring board having an insulating layer, conductor layers and a first metal block fitted in a hole penetrating through the conductor layers and insulating layer, and a second flexible printed wiring board having an insulating layer, conductor layers and a second metal block fitted in a hole penetrating through the conductor layers and insulating layer. The first flexible printed wiring board and the second flexible printed wiring board have a welded portion formed by welding the first metal block and the second metal block and joining the first metal block and the second metal block such that the welded portion is joining the first flexible printed wiring board and the second flexible printed wiring board.