摘要:
In a dome switch (21) including a surface sheet (22), a spacer sheet (23), an FPC (24) serving as a circuit member, and an adhesive sheet (25), an accommodating portion (34) for a chip component (38) mounted on a contact (37) side of the FPC (24) is formed in the spacer sheet (23). In addition, an embossed portion (28) for the chip component (38) is formed in the surface sheet (22), as required.
摘要:
A circuit and its connecting structure assembly provided in a motorcar door includes an inner unit being able to joint to a door panel, and an arm rest unit attached on the inner unit. The inner unit has an inner panel provided with a circuit, a plurality of auxiliary components connected to the circuit, and an integrated connector section. The arm rest unit includes a connector portion corresponding to the integrated connector section, a control circuit board connected to the connector portion and to a switch section for the auxiliary components, a circuit provided in the arm rest body and connected to the control circuit board, and an optional switch connected to the circuit. In the optional switches connected to the circuit provided in the arm rest unit, software replacement of the control circuit board can change the functions of the optional switches.
摘要:
Push-button device includes a plurality of movably disposed keys and an elastic switching pad having a plurality of domes. Each dome is disposed adjacent to and is engagable by one of the plurality of keys and a dome contact disposed on each dome. A conductor foil having a plurality of contacts is provided, each conductor foil contact being arranged for contacting one of the dome contacts when one of the keys is moved. A printed circuit board having upper and lower faces is arranged near the contact foil. A spacer member disposed between the upper face of the printed circuit board and the conductor foil defines an electrical component receiving space, and there is a plurality of electrical components located on the upper face in the electrical component receiving space.
摘要:
The invention relates to an touch-surface electric control device (1) comprising a touch-surface sensor (29), a printed circuit board (33), connection means (42) for the electric connection between the touch-surface sensor (29) and the printed circuit board (33), the connections means (42) and the touch-surface (29) being flexible and including a connection tab (67), the touch-surface sensor (29) and the printed circuit board (33) being provided on the opposite faces of a common substrate (31) provided between said sensor (29) and said board (33), characterized in that a side face of the common substrate (31) includes a guiding protrusion (44) for the connection tab (67).
摘要:
A keyboard that can be illuminated comprises a key array and a base element. Key buttons of the key array are held in modules arranged on a side, facing away from either the base element or a printed circuit board that is provided for delivering signals. The printed circuit board is arranged above the base element in a place close to but at a distance away from the base statement and made at least partially light-transmitting. At least one light source for emitting light is arranged on the underside of the printed circuit board that faces the base element. At least one light-scattering elements, which projects from the base element toward the printed circuit board, is arranged on the side of the base element facing the printed circuit board.
摘要:
The present invention provides an improved keyboard for a cellular telephone or the like. The improved keyboard includes an additional shielding layer which is added to the keypad to prevent RF leakage in the direction of the user. The shielding layer includes an insulating layer and a conductive layer. The conductive layer may be added in one of two ways. First, a conductive layer made of nickel foil or other suitable material may be molded directly into the keypad. Second, the conductive layer may be plated or painted on the surface of the keypad. In any such process, a layer of insulating material is added to the bottom surface of the conductive layer to prevent shorts. Finally, doping of the keypad may be used to improve the effectiveness of the shielding by using it with either of the aforementioned methods of implementation.
摘要:
A power window switch has a case, a substrate disposed in the case, a window operation knob disposed on the case, a window lock button disposed on a front side of the window operation knob on the case, a window operation switch mechanism disposed in the case and activated in accordance with an operation of the window operation knob, a window lock switch mechanism disposed in the case and activated in accordance with an operation of the window lock button, and a connector having a terminal with a first terminal end protruding from the case and a second terminal end connected to the substrate. The window lock switch mechanism includes two conductive plate springs, and a pressing unit for pressing the plate springs.
摘要:
Architecture for a keyboard that supports the n-key rollover feature, while being compatible with well established, high volume, inexpensive manufacturing techniques. The design is a matrix design that uses resistors at each key rather than diodes, and employs novel circuits which allow any combination of simultaneous key presses to be detected using this resistive matrix. The resistors can be screen printed on the flexible sheets in a manner similar to the conductors. A resistive keyboard matrix employs circuit techniques that eliminate phantom key presses. The resistors can be created by screen-printing carbon ink. Additionally, various implementations of the decoder circuits can be employed to provide the n-key rollover feature on flexible sheets for inexpensive production.
摘要:
In a dome switch (21) including a surface sheet (22), a spacer sheet (23), an FPC (24) serving as a circuit member, and an adhesive sheet (25), an accommodating portion (34) for a chip component (38) mounted on a contact (37) side of the FPC (24) is formed in the spacer sheet (23). In addition, an embossed portion (28) for the chip component (38) is formed in the surface sheet (22), as required.
摘要:
Disclosed is a method of mounting electronic parts onto a single-sided printed wiring board, including the provision of a key contact pattern on the front surface of a substrate member having a plurality of through-holes; the provision of a conductive pattern covering these through-holes on the front surface of the substrate member; and the mounting of electronic parts in position relative to these through-holes from the rear surface of the substrate member.