Patent application number | Description | Published |
20080237004 | ROLLING-BALL SWITCH AND METHOD OF MAKING THE SAME - A rolling-ball switch includes an insulative casing part having first and second connecting faces and an intermediate through hole, insulative first and second covering parts each having a recessed inner side that covers the respective connecting face, and two metal plates respectively disposed between the first covering part and the first connecting face and between the second covering part and the second connecting face. The first and second recessed inner sides and the intermediate through hole cooperatively define a chamber. Each metal plate includes an inner peripheral edge having an edge portion projecting into the chamber. A conductive ball is disposed movably in the chamber, and has a diameter larger than a distance between the edge portions of the metal plates so that the conductive ball can bridge the edge portions of the metal plates to place the rolling-ball switch in an ON state. | 10-02-2008 |
20090078546 | ROLLING-BALL SWITCH - A rolling-ball switch is adapted to be fixed on a circuit board, and includes a conductive housing defining a receiving space and having two opposite open ends, two conductive balls disposed movably in the receiving space, two insulation caps covering respectively the open ends to confine the conductive balls in the receiving space, and two terminals connected fixedly and respectively to the insulation caps. The receiving space has first and second widths along first and second directions that are perpendicular to each other. The first width is larger than the sum of diameters of the conductive balls, the second width is larger than the diameter of each conductive ball, and the diameter of each conductive ball is larger than a distance between an inner section of the respective terminal that extends into the receiving space and an inner wall of the conductive housing. | 03-26-2009 |
20090108189 | Sensor Device - A sensor device includes a base wall, a plurality of sidewalls cooperating with the base wall to define a receiving space that has an open end, an emitter disposed in the receiving space and having an emitter element to emit a light signal, a receiver disposed in the receiving space and having a receiver element to receive the light signal, a cover body disposed in the receiving space between the emitter and the receiver, a ball chamber formed between inner surfaces of the base wall and the cover body, a ball member disposed movably in the ball chamber, an emitter light passage optically communicating with the ball chamber and the emitter, and a receiver light passage optically communicating with the ball chamber and the receiver. The cover body, the emitter, and the receiver cooperatively close the open end of the receiving space. | 04-30-2009 |
20100043209 | METHOD FOR MAKING AN ELECTRONIC SWITCH THAT IS MOUNTABLE ON A CIRCUIT BOARD - A method for making an electronic switch mountable on a circuit board includes the steps of: (A) providing a housing that includes a base having opposite inner and outer sides, and a cover body having a main portion that cooperates with the inner side of the base to define a chamber, and an end portion that cooperates with the outer side of the base to define a sealing space; (B) providing a terminal having a connecting part extending through the base and the sealing space for connection with the circuit board; (C) providing the base with a hollow portion that projects outwardly from the outer side thereof into the sealing space and that confines an air-discharge hole communicating fluidly with the chamber; (D) providing a first adhesive layer to seal the sealing space without covering the air-discharge hole; and (E) sealing the air-discharge hole. | 02-25-2010 |
20100044197 | ELECTRONIC SWITCH MOUNTABLE ON A CIRCUIT BOARD - An electronic switch includes a housing having a base with opposite inner and outer sides, and a cover body having a main portion that cooperates with the inner side of the base to define a chamber, and an end portion cooperating with the outer side of the base to define a sealing space. A terminal has a connecting part extending through the base and the sealing space and adapted to be connected to the circuit board. A hollow portion projects outwardly from the outer side of the base into the sealing space, and confines an air-discharge hole communicating fluidly with the chamber. A first adhesive layer is disposed in the sealing space without covering the air-discharge hole. A sealing unit is attached to the base, and seals the air-discharge hole. | 02-25-2010 |
20100133075 | ROLLING-BALL SWITCH - A rolling-ball switch includes a housing defining at least two receiving sections, at least one separating member provided in the housing between the two receiving sections, at least two conductive balls disposed rollably and respectively in the receiving sections, a pair of first terminals extending into one of the receiving sections to contact one of the conductive balls, and a pair of second terminals extending into the other one of the receiving sections to contact the other one of the conductive balls. The conductive balls are rollable toward the respective pairs of the first and second terminals in a first direction. The separating member prevents movement of the conductive balls from one of the receiving sections to the other one of the receiving sections. | 06-03-2010 |
20120145888 | OPTICAL SWITCH - An optical switch includes a housing having reflecting and mounting surfaces facing each other, and a receiving chamber formed between the reflecting and mounting surfaces. The mounting surface is recessed to form at least two mounting recesses. A sensor unit includes a light emitter and at least one light receiver disposed respectively in the mounting recesses and exposed from the mounting surface to face the reflecting surface. The light emitter is capable of emitting light to the light receiver through a reflection of the reflecting surface. A slide disc is disposed slidably but not rollably in the receiving chamber, and is slidable between a blocking position, where the slide disc blocks the light emitted from the light emitter to the light receiver, and an unblocking position, where the slide disc allows the light emitted from the light emitter to be received by the light receiver. | 06-14-2012 |
20120193195 | ROLLING-BALL SWITCH - A rolling-ball switch includes a surrounding wall defining an axial hole and including two opposite open ends, and two metallic terminals plugged in the axial hole respectively from the open ends. The surrounding wall has an inner surface formed with two spaced-apart first annular recesses proximate to the open ends, respectively, and two spaced-apart second annular recesses respectively adjacent to the first annular recesses but distal from the respective open ends. Each terminal has an insert portion inserted into the axial hole, and axially spaced-apart first and second barbed surfaces formed annularly around the insert portion. The first barbed surface is engaged to a respective first annular recess. The second barbed surfaces of the metallic terminals are engageable respectively with the second annular recesses when the terminals expand due to heat. A ball member is disposed rollably in the axial hole to contact the terminals. | 08-02-2012 |
20120312575 | Electric Component and Method of Making the Same - A method of making an electric component includes: (a) stamping a metal stock plate to form a plurality of conductive terminals that are partially connected to an excess portion of the metal stock plate; (b) bending each of the conductive terminals to form a bended portion; and (c) forming a housing body over the conductive terminals by insert molding the bended portions of the conductive terminals in the housing body, each of the conductive terminals having an internal portion that is disposed within the housing body and that includes the bended portion, and an external portion that extends out of the housing body and that is connected to the excess portion. | 12-13-2012 |
20130292551 | Photoelectric Switch and Photoelectric Switch Housing Thereof - A photoelectric switch includes a base having a tubular wall surrounding an axis, and a cover coupled to the base and including a rib unit that cooperates with the tubular wall to confine a rolling chamber. The rib unit has at least one portion overlapping the tubular wall. A light passage extends through the rolling chamber and two diametrically opposite sides of the tubular wall. A photoelectric unit is enclosed by the base and the cover, and includes a light emitter and a light receiver disposed respectively on two opposite ends of the light passage, and a rolling member disposed in the rolling chamber and movable between a blocking position to block the light passage and a non-blocking position to unblock the light passage. | 11-07-2013 |
20130336710 | Plastic Unit - A plastic unit to be assembled by welding includes first and second members, and an interconnecting member for interconnecting the first and second members. The first member extends in an axial direction. The second member caps the first member, and is in contact with the first member at a first junction extending in the axial direction and terminating at opposite first and second ends, a second junction adjacent to the first end and extending in an inward direction, and a third junction adjacent to the first end and extending in an inward direction. The interconnecting member includes first, second and third interconnecting portions disposed at the first, second and third junctions, respectively. | 12-19-2013 |
20140034460 | Multi-Directional Tilt Switch - A multi-directional tilt switch includes a housing inner surface defining a chamber, a housing outer surface opposite to the housing inner surface, a plurality of slots extending through the housing inner and outer surfaces, and a plurality of conductive terminals each including an insert portion inserted in a corresponding slot, a contact portion extending into the chamber, and a first connecting surface exposed from the housing outer surface. A conductive body is accommodated movably in the chamber between a first position, where the conductive body bridges two contact portions, and a second position, where the conductive body does not bridge any two contact portions. | 02-06-2014 |
20140034814 | MULTI-DIRECTIONAL SENSOR SWITCH - A sensor switch includes a housing having a receiving chamber defined by top and bottom walls and a multi-sided chamber surrounding wall, and a light emitter and a light receiver disposed outwardly of the surrounding wall at two opposite positions. The surrounding wall is formed with two light passage holes which are aligned respectively with the light emitter and the light receiver to permit a light path to extend therethrough. The bottom wall has a bottom inclined wall face that forms an included angle of from -80 degrees to 80 degrees with respect to a first axis. A rolling member is movable in the receiving chamber to alternately block and unblock the light path when moving to and fro on the bottom wall. | 02-06-2014 |
20140138219 | ELECTRICAL SWITCH AND METHOD OF PRODUCING THE SAME - A method of producing an electrical switch which includes a rolling ball movable within a housing thereof to bridge and contact an array of pin terminals includes the steps of forming the pin terminals by using a punching process, wherein one or more smooth burr-free surfaces are formed on each of the pin terminals; and assembling the pin terminals, the housing and the rolling ball by spacing apart the pin terminals along a polygonal line and by arranging the smooth burr-free surfaces of the pin terminals to face toward each other substantially along diagonal lines such that the rolling ball contacts only the smooth burr-free surfaces when bridging the pin terminals. | 05-22-2014 |
20140231231 | MULTI-POINT TILT SWITCH - A multi-point tilt switch includes an insulator housing surrounding a chamber, a first conductive component mounted to the housing and having a contact portion bordering the chamber, a plurality of second conductive components each having a contact portion in the chamber, and a conductor accommodated in the chamber. Each of the first and second conductive components has a connection portion exposed from the housing. The conductor is movable in the chamber to contact or not to contact the contact portions of at least two of the first and second conductive components, so as to make or break electrical connection therebetween. | 08-21-2014 |
20140231629 | TILT SWITCH - A tilt switch includes a housing defining a chamber and including a frusto-conical inner wall surface having a cone angle which is less than or equal to 90 degrees, and a tapered bottom inner wall surface that defines a bottom end of the chamber, that tapers downwardly from a bottom end of the frusto-conical inner wall surface and that forms a cone angle which is greater than 90 degrees. A light emitter and a light receiver are disposed respectively at two opposite sides of the chamber. A rolling element is rollable in the chamber between blocking and unblocking positions, where the rolling element blocks and unblocks light emitted from the light emitter, respectively. | 08-21-2014 |
20140262704 | Sandwich-Type Tilt Switch - A tilt switch includes an insulated housing with two housing halves cooperatively defining an accommodation chamber and a plurality of positioning grooves formed in a surface of at least one housing half around the accommodation chamber. A plurality of conductive terminals are sandwiched between the housing halves. Each conductive terminal has a plate member positioned in a respective positioning groove, and a contact portion extending into the accommodation chamber. A conductive body is disposed in the accommodation chamber and is movable between a closed circuit state that bridges the contact portions of at least two conductive terminals and an open circuit state that does not bridge the contact portions of any two conductive terminals. | 09-18-2014 |
20140346899 | POWER CONTROL DEVICE WITH MULTI-DIRECTIONAL SENSING ABILITY - A power control device includes an electric power switch and a control unit. The control unit is mounted on an electric device, determines whether the electric device is disposed at a normal use position or an abnormal inclined position, and determines whether the electric device is at a normal use state and is disposed at the normal use position. The control unit controls the electric power switch to provide electric power to the electric device when the electric device is at the normal use state, and to stop providing the electric power to the electric device when the electric device is at the abnormal inclined position. | 11-27-2014 |