A circuit board system includes a circuit board having a base part (101) and at least one changeable part (102) furnished with at least one electrical component (103) such as a light emitting diode. The base part includes an aperture for receiving the changeable part so that a perpendicular of the changeable part is parallel with a perpendicular of the base part. The aperture is shaped to allow the position of the changeable part to be changed with respect to the base part when the changeable part is in the aperture, and edges of the aperture and the changeable part have mutually cooperative connection portions (105, 106) which allow the changeable part to be introduced on the aperture when the changeable part is in a first position and which limit freedom of the changeable part to get away from the aperture when the changeable part is in a second position.

A lighting fixture, including a bus printed circuit board that receives power from an external source, may be configured with programmable drivers. The bus printed circuit board has mechanical features for receiving the programmable drivers to mechanically mount the programmable driver to the bus printed circuit board. Each programmable driver may have a set of spring contacts positioned to engage exposed pads of the bus printed circuit board when the programmable driver is mounted to the bus printed circuit board, to supply power to the programmable driver. The lighting fixture further includes one or more light sources driven by the programmable drivers.

The invention provides a printed circuit board (10) including a first electrically conductive track (210), wherein the printed circuit board (10) comprises a set (15) of two printed circuit board areas (100) both comprising a part of the first electrically conductive track (210), wherein printed circuit board (10) further comprises a perforation line (300) between the two printed circuit board areas (100) for customizing the printed circuit board (10) into two physically separated printed circuit board area comprising parts (1100), wherein the perforation line (300) is configured as a non-straight line, wherein the perforation line (300) comprises relative to one of the printed circuit board areas (100), and in a plane of the printed circuit board (10), a first projecting part (311) and a first recessed part (312), wherein the first recessed part (312) is recessed relative to the first projecting part (311), wherein the first electrically conductive track (210) is intercepted by the perforation line (300) at the first recessed part (312).

In some examples, an electronic device comprises a first component having a surface, a second component having a surface, and a bond layer positioned between the surfaces of the first and second components to couple the first and second components to each other. The bond layer includes a set of metallic nanowires and a dielectric portion. The dielectric portion comprises a polymer matrix and dielectric nanoparticles.

An electrical circuit assembly comprising: a circuit component, a fabric-based component, and a fastener is disclosed along with methods for fabricating the electrical circuit assembly and for using the electrical circuit assembly. The circuit component may comprise: a substrate layer comprising an integrated circuit disposed on the substrate layer; and a first conductive linkage electrically coupled to the integrated circuit. The fabric-based component may comprise: a fabric layer comprising a first at least one conductive thread; and a second conductive linkage electrically coupled to the first at least one conductive thread. The fastener may be configured to couple the circuit component and the fabric-based component at the first conductive linkage and the second conductive linkage.

A first unit (100) including a first member (110) of a releasable fastening arrangement (300) is presented. The releasable fastening arrangement (300) is arranged to provide a mechanical connection of the first unit (100) to a second unit (200), and an electrical connection of a first electrical circuit (120) included in the first unit (100) to a second electrical circuit (220) included in the second unit (200), when a male profile (115) of the first member (110) is inserted into a corresponding female profile (215) included in a second member (210) of the second unit (200). The mechanical connection is provided based on a material deformation of the male profile (115). The electrical connection is provided by contact between one or more first flexible conductors (124) arranged on a first flexible and electrically insulating layer (126) of the first electrical circuit (120) and one or more second flexible conductors (224) arranged on a second flexible and electrically insulating layer (226) of the second electrical circuit (220).

In one embodiment, a system includes a first circuit defining recesses along an edge of the first circuit board, and a second circuit board defining fins extending from at least one outer edge of the second circuit board. The fins of the second circuit board are positioned within the recesses of the second circuit board to connect the circuit boards in a co-planar manner. The fins and recesses may be shaped to provide an interlocking connection of the first and second circuit boards in the co-planar direction.

In general, the present invention relates to electrically conducting, polymer coated wires that are in electric contact with, as well as touching, electrically conducting substrates. In particular, the present invention relates to a connection unit for achieving the aforementioned electric connection and touching, as well as a method for producing said connection unit. The present invention also relates to a use for such a connection unit.

An embodiment relates to a lighting device. An embodiment may comprise a lighting device comprising: a light emitting module comprising a circuit board and a plurality of light emitting devices arranged on the circuit board; and a coupling member coupled to the lower surface of the circuit board, wherein the coupling member comprises: a head portion arranged on the lower surface of the circuit board and comprising a first side, a second side opposite the first side, a third side connected to the first side and the second side, and a fourth side opposite the third side; a first support portion extending from one end portion of the head portion in the vertical direction; a second support portion extending from the other end portion of the head portion in the vertical direction; a first elastic portion bent from the first support portion in an outward direction from the first support portion; a second elastic portion bent from the second support portion in an outward direction from the second support portion; a first detachment preventing portion extending from an end of the first elastic portion toward the first support portion; a second detachment preventing portion extending from an end of the second elastic portion toward the second support portion; a first leg portion extending from an end of the first detachment preventing portion toward the lower surface of the circuit board; and a second leg portion extending from an end of the second detachment preventing portion toward the lower surface of the circuit board, wherein the first leg portion has a plurality of first elastic pieces, the second leg portion has a plurality of second elastic pieces, the first elastic pieces of the first leg portion are inclined outwards from the first leg portion, and the second elastic pieces of the second leg portion are inclined outwards from the second leg portion.

In an embodiment, an electronic device may include a housing including a hinge module, a first housing, and second housing. The first and second housings are rotatably coupled to each other via the hinge module to be in a folded state or an unfolded state. The electronic device may further include a flexible display, at least one conductive pattern disposed in the first housing, at least one conductor disposed at a position in the second housing corresponding to the at least one conductive pattern such that the at least one conductor is capacitively coupled to the conductive pattern when the electronic device is in the folded state, and a wireless communication circuit electrically connected to the at least one conductive pattern in the first housing. Other embodiments are also possible.