摘要:
A socket structure of a micro switch includes a plurality conductive pins of at the bottom of the switch, and a plurality of grooves and distal slots, and the grooves are formed at the bottom of the switch, and the pins are disposed in the grooves, and the distal slots are formed on an outer wall of the switch and interconnected to the grooves respectively, and the top of the pin is extended into the distal slot, so that the pin is exposed from the outer wall of the switch, and the grooves are provided for positioning the pins and preventing them from being deformed, and containing a solder paste for soldering to prevent the switch from being protruded, and the distal slots are provided for extending a soldering iron to touch that pins to facilitate removing and soldering the switch on a surface of a circuit board.
摘要:
A method for configuring button keys on a membrane includes the steps of: mapping the membrane under the conditions of without jumping and without generating ghost keys; gathering adjacent button keys on a same cluster; defining a button key configuration chart according to each cluster; and linking circuits of each button key in each cluster to a flat cable of the membrane. Then defining total number of various composite keys; locating the composite keys to be not co-linear or cross co-linear on the X-axis or the Y-axis of the matrix scanning lines; and mapping other adjacent button keys without the jumping.
摘要:
Keyboard for the control box (11) of an electric apparatus comprising a sheet (1) which forms a plurality of contactors (2) each projecting from the sheet through a blister (3) which is elastically deformable and which acts as a spring, the contactors (2) being provided with bearing keys (8) and contact pads (5) intended to come into contact with a printed circuit (12) arranged under the sheet (1) of contactors when a pressure is exerted on the keys. This keyboard is remarkable in that at least certain of the contactors (2) are provided with stubs (4) arranged opposite the contact pads (5) and which are intended to be force fitted into corresponding housings provided in the bearing keys (8).
摘要:
A switch device includes a housing having a case and a holding member, a moving member, a biasing member, a movable contact, a common fixed contact, a first switching fixed contact, a second switching fixed contact, extending portions, at least two terminal members, and resistors for obtaining the resistance value between two terminal members, and fixing portions to which the resistors are soldered. The holding member includes a bottom wall portion that covers the bottom of the case, and a holding wall portion holding the fixing portions. The holding wall portion is formed of a first synthetic resin material having heat resistance, and the bottom wall portion is made of a second synthetic resin material having a heat distortion temperature lower than that of the first synthetic resin material. A method for manufacturing a switch device includes a first molding step, a resistor mounting step, and a second molding step.
摘要:
A click plate (9) constituting a switch used for an operation key etc. of a portable telephone is attached on a substrate (1 by soldering it on a contact pattern (6) formed on the substrate. The click plate (9) includes a convex portion (11) which center portion is expanded and made hollow. The convex portion is pushed and deformed to contact with a contact pattern (7) on the substrate thereby to generate a contact signal. The peripheral portion (10) of the click plate (9) is provided with attachment portions (17) protruded outward. The attachment portions (17) are soldered on the contact pattern (6). In this manner, the click plate can be attached on an arbitrary position in a manner that the click plate (9) is attached on the substrate (1) by the soldering.
摘要:
A keyswitch for use with keyboards for connecting intersecting row and column wires of a circuit board for the keyboard has a decoupling diode for preventing the generation of false signals which may prevent a clear identification of the keyswitch which has been activated upon the simultaneous actuation of several keyswitches. The decoupling diode is integrated in the movable contact bridge of the keyswitch so that no soldering need be undertaken on the circuit board for the keyboard.
摘要:
A side-push push-button switch is provided in which the strength of a rear surface side of a housing to which a load is particularly applied by outside force caused by the switching operation of a push-button member is increased to stably mount the housing on a circuit board and ensure reliable and secure switching operation. The push-button switch includes a housing, a push-button member, and a holding frame. The housing accommodates a switch contact. The push-button member is disposed on a front-surface center portion of the housing and configured to press the switch contact. The holding frame of a channel shape covers outer surfaces of the housing. Both ends of the holding frame are secured to front-surface side portions of the housing on both sides of the push-button member.
摘要:
The invention relates to a PCB tact switch, and more particularly, to a PCB tact switch having excellent water resistance because same does not have holes on the top and bottom which are open to the outside, capable of preventing erroneous operation through improved contact point safety, and capable of preventing product disengagement through improved fixing strength by being soldered to a substrate. The PCB tact switch of the present invention comprises: an insulation member (100) forming an insulator in a thin plate-shape through which electricity does not pass; an upper conductive substrate (300) formed of a conductor through which electricity may pass, covering the upper surface of the insulation member (100), and including a central contact point terminal (340) and an external contact point terminal (330) by means of a disconnecting portion (310); a lower conductive substrate (400) at the lower surface of the insulation member (100), having an insulation adhesive film (200) deposited on the upper portion thereof, and electrically connected with the upper substrate (300) by means of a through-hole (410); a metal dome (500) which is resiliently deformed by the click from a user, and which electrically connects or disconnects the upper conductive substrate (300) and the lower conductive substrate (400); an insulation film as an insulation cover (600) entirely covering the top portions of the upper conductive substrate (300) and the metal dome (500) and protecting the insides thereof; and an insulation solder mask (700) bonded to the undersurface of the lower conductive substrate (400) and covering the portions with an insulator, except for those requiring soldering, wherein a receiving slot (360) is formed by a receiving slot (110) defined through the insulation member (100) and the insulation film (111), and the metal dome (500) is disposed within the receiving slot (360).
摘要:
A keyboard assembly has a PC board providing a series of switch contacts and a molded rubber keyboard providing a rubber base sheet overlying the PC board and having a series of rubber keys integral with the base sheet. Each key has contacts on its bottom surface for closing each of the switch contacts when its key is depressed. Stabilizing membranes prevent the keys from wobbling or binding. The membrane snugly engages each key, and the membrane is flexible along its Z axis but sufficiently stiff along its X and Y axes to limit the movement of the keys to strictly linear movement toward and away from their respective PC board switches.
摘要:
A push switch includes a switch section for carrying out electric connection by pushing, a switch case having a groove portion on a side surface thereof and accommodating the switch section, and a terminal produced integrally with the switch case and led out from a side surface of the switch case. The groove portion extends from a vicinity of the terminal.