A segmental calendering device includes a framework, a pair of left-rolling sliding guide mechanism, a pair of right-rolling sliding guide mechanisms, an upper-calendering roller and a supporting mechanism of the upper-calendering roller, a lower-calendering roller as well as a pressing mechanism. The upper-calendering roller is rotatably supported within the supporting mechanism of the upper-calendering roller and disposed above a position between a left wallboard and a right wallboard of the framework, and the supporting mechanism of the upper-calendering roller slides along the pair of left-rolling sliding guide mechanisms and the pair of right-rolling sliding guide mechanisms. The lower-calendering roller is disposed below the upper-calendering roller correspondingly and rotatably supported between the left wallboard and the right wallboard. The pressing mechanism is for applying a pressure on the supporting mechanism of the upper-calendering roller and for adjusting the pressure.

An edge launch signal connector (e.g., RF connector) comprises a connector body having a support aperture, and one or more interface surfaces operable to interface with an edge launch connector support portion of a first circuit board. A plurality of ground contact pins can be supported by the connector body and can be arrayed about the support aperture of the connector body, and a signal pin can be supported within the support aperture. In response to the edge launch signal connector engaging a second circuit board, the signal pin interfaces with a signal contact pad of the second circuit board, and the plurality of ground contact pins interface with at least one ground contact pad. A first circuit board assembly can support a plurality of edge launch signal connectors for blind-mate coupling first and second circuit board assemblies together to accommodate for positional tolerances.

A card edge contact pair for electrically coupling printed circuit board assemblies is provided. The card edge contact pair includes a first contact body and a second contact body. The first contact body includes a first solder joint end and a first deflection end. The second contact body includes a second solder joint end and a second deflection end. The card edge contact pair further includes an integral carrier component. The integral carrier component is detachably coupled to the first contact body and the second contact body.

An image display apparatus includes: a display panel; an LED substrate disposed on a back surface side of the display panel and on which an LED is mounted; a relay substrate disposed on the back surface side and on which a circuit unit is mounted; a first metal member disposed on the LED substrate and electrically connected with the LED; a second metal member disposed on the relay substrate, electrically connected with the circuit unit; and a reflective sheet that is electrically insulative and disposed between the display panel and both of the LED substrate and the relay substrate so as to cover at least the first metal member and the second metal member, the reflective sheet reflecting light from the LED toward a back surface of the display panel. When the first metal member and the second metal member are fitted with each other, an index hole is covered.

An adapter block assembly includes an adapter block, a circuit board arrangement, and a cover attached to the adapter block so that the circuit board arrangement is held to the adapter block by the cover. Contact assemblies can be disposed between the adapter block and the circuit board arrangement. The cover can be latched, heat staked, or otherwise secured to the adapter block. Each component of the adapter block assembly can include one or more parts (e.g., multiple adapter blocks, multiple circuit boards, and/or multiple cover pieces).

The present discloses illustrates an electric connector. In the electric connector, an abutting part of an insulating body includes two arms extended from two rear sides thereof, and a terminal holder of a terminal set is assembled between the two arms, the terminal holder is be integrally formed with conductive terminals, and the contact parts of the conductive terminals insert into terminal slots of the abutting part, respectively; and, a circuit board is assembled in the concave space formed between the two arms, and the solder parts of the conductive terminals are electrically connected to the first contact set on the upper and lower surfaces of the circuit board. The design of the insulating body in cooperation with the terminal set having decreasing length, can significantly reduce the size of entire electric connector and almost half of the circuit board can be accommodated in the insulating body.

An adapter block assembly includes an adapter block, a circuit board arrangement, and a cover attached to the adapter block so that the circuit board arrangement is held to the adapter block by the cover. Contact assemblies can be disposed between the adapter block and the circuit board arrangement. The cover can be latched, heat staked, or otherwise secured to the adapter block. Each component of the adapter block assembly can include one or more parts (e.g., multiple adapter blocks, multiple circuit boards, and/or multiple cover pieces).

A segmental calendering device includes a framework, a pair of left-rolling sliding guide mechanism, a pair of right-rolling sliding guide mechanisms, an upper-calendering roller and a supporting mechanism of the upper-calendering roller, a lower-calendering roller as well as a pressing mechanism. The upper-calendering roller is rotatably supported within the supporting mechanism of the upper-calendering roller and disposed above a position between a left wallboard and a right wallboard of the framework, and the supporting mechanism of the upper-calendering roller slides along the pair of left-rolling sliding guide mechanisms and the pair of right-rolling sliding guide mechanisms. The lower-calendering roller is disposed below the upper-calendering roller correspondingly and rotatably supported between the left wallboard and the right wallboard. The pressing mechanism is for applying a pressure on the supporting mechanism of the upper-calendering roller and for adjusting the pressure.

An electronic device is provided. The electronic device includes a metal frame, a circuit board, a first connection structure, and an antenna module. The metal frame is provided with a first contact portion extending outwardly from an inner surface of the metal frame. The first connection structure includes a first resilient piece, the first resilient piece has a first end and a second end opposite to the first end, the first end of the resilient piece is electrically coupled with the first contact portion via abutting against the first contact portion. The antenna module disposed on the circuit board is electrically coupled with the second end of the first resilient piece extending through the circuit board, and is electrically coupled with the metal frame via the first resilient piece, such that the metal frame is operable to be antenna resonating elements of the antenna module.

The present invention provides a flexible flat cable. The flexible flat cable including: a first flexible flat cable and a second flexible flat cable, wherein: an end of the first flexible flat cable is connected with a first terminal; an another end of the first flexible flat cable is provided with a plurality of first pads; an end of the second flexible flat cable is connected with a second terminal; an another end of the second flexible flat cable is provided with a plurality of second pads connected with the plurality of first pads in one-to-one correspondence. The flexible flat cable according to the exemplary embodiments of the present invention can improve versatility, reusability and repairability of the flexible flat cable.