Abstract: Simple, rapid and low-cost assembly methods of a LED lamp are provided. A standard lamp base having two electrodes and a cavity is soldered with a resistor to the first one of the electrodes, and then filled with a thermally conductive electric insulator in the cavity. A circuit board is attached onto the thermally conductive electric insulator and then soldered to the second electrode and the resistor. An LED device is soldered onto the circuit board such that the LED device and the resistor are serially connected between the electrodes. Preferably, the circuit board has a through hole through which a thermally conductive member is inserted into the thermally conductive electric insulator with its lower end, and the LED device is placed onto the upper end of the thermally conductive member.

Abstract: A hydraulic buffer device includes a first chamber, a second chamber, and a buffering space disposed under the first and second chambers, an air bladder disposed in the buffering space, an oil chamber disposed above the first and second chambers and divided by a piston into upper and lower chamber portions, and an annular passage disposed around the oil chamber. When the piston is moved downwardly within the oil chamber, the hydraulic oil flows from the lower chamber portion into the buffering space via the first chamber to contract the air bladder so that, upon expansion of the air bladder, air pressure in the air bladder pushes the hydraulic oil to flow from the buffering space into the upper chamber portion via the second chamber and the annular passage.

Abstract: Simple, rapid and low-cost assembly methods of a LED lamp are provided. A standard lamp base having two electrodes and a cavity is soldered with a resistor to the first one of the electrodes, and then filled with a thermally conductive electric insulator in the cavity. A circuit board is attached onto the thermally conductive electric insulator and then soldered to the second electrode and the resistor. An LED device is soldered onto the circuit board such that the LED device and the resistor are serially connected between the electrodes. Preferably, the circuit board has a through hole through which a thermally conductive member is inserted into the thermally conductive electric insulator with its lower end, and the LED device is placed onto the upper end of the thermally conductive member.

Abstract: A light diffusion bulb and a color filter bulb are used in a color LED lamp including a white or warm white LED having a power of at least 0.5 W. The light diffusion bulb and color filter bulb both are bounded to a base to enclose the LED. The light diffusion bulb scatters the light of the LED by a great number of particles such that the light diffusion bulb becomes a surface light source conforming to the geometric shape thereof for uniform illumination, and the color filter bulb filters the light of the LED to thereby determine the light color of the LED lamp. Alternatively, the light diffusion function and color filtering function are combined in a single bulb.

Abstract: Simple, rapid and low-cost assembly methods of a LED lamp are provided. A standard lamp base having two electrodes and a cavity is soldered with a resistor to the first one of the electrodes, and then filled with a thermally conductive electric insulator in the cavity. A circuit board is attached onto the thermally conductive electric insulator and then soldered to the second electrode and the resistor. An LED device is soldered onto the circuit board such that the LED device and the resistor are serially connected between the electrodes. Preferably, the circuit board has a through hole through which a thermally conductive member is inserted into the thermally conductive electric insulator with its lower end, and the LED device is placed onto the upper end of the thermally conductive member.

Abstract: In a LED lamp, a thermally conductive electric insulator is filled in a cavity of a lamp base, a LED filament includes an AC LED device, a resistor is connected with the AC LED device in series between two electrodes of the lamp base to form an electric loop, and a reflective cup has a hole at a bottom thereof to expose the AC LED device and a reflective surface to reflect light of the AC LED device for providing a spotlight. The thermally conductive electric insulator mechanically contacts the LED filament and the first one of the two electrodes, and thereby establishes a heat dissipation channel from the AC LED device to the first electrode therethrough.

Abstract: A LED lamp which could directly replace an ordinary tungsten, halogen, or electricity-saving light bulb, includes a LED filament, a lamp base, a thermally conductive electric insulator, and a mask. The thermally conductive electric insulator is filled in a cavity of the lamp base, and includes a first portion mechanically contacting the LED filament and an electrode of the lamp base to provide a first thermal channel from the LED filament to the lamp base, and a second portion adhering the mask to the lamp base to provide a second thermal channel from the lamp base to the mask. By using the mask to enlarge the heat dissipation area, a better heat dissipation effect is achieved.

Abstract: A LED lamp which could directly replace an ordinary tungsten, halogen, or electricity-saving light bulb includes a filament, a lamp base and a thermally conductive electric insulator. The filament includes at least one AC LED device, and the thermally conductive electric insulator is filled in a cavity of the lamp base to mechanically contact with the filament and an electrode of the lamp base. When the AC LED device is powered on, the thermally conductive electric insulator provides a thermal channel to transfer heat from the filament to the electrode for heat dissipation enhancement. The LED lamp can be directly inserted into an ordinary bulb socket that is generally used in lighting fixtures, without having to modify the system of the lighting fixtures or use an additional adapter.

Abstract: A method for manufacturing a circular electrode apparatus of a battery for resistance stability improvement comprises the following procedures. First, an electrode structure of a battery including an upper electrode plate, an over-current protection device and lower electrode plate is provided, wherein the over-current protection device is a lamination constituted of an upper metal foil, a current-sensitive layer and a lower metal foil. Secondly, the electrode structure is treated by high-speed impact, vibration, hot-cold impact, acid pickling, water pickling or sand blasting to become the electrode apparatus of the present invention whereby the mean value of the resistance of the electrode apparatuses is below 0.05 ohm, and the deviation of the resistances of the electrode apparatuses is below 0.005 ohm at 25° C.

Abstract: The present invention discloses a manufacturing method of an over-current protection device, characterized in that the PTC plaque is conducted by punching under frozen state to form the over-current protection devices so as to reduce the heating and temperature rising in the PTC plaque due to punching and temperature difference between the metal foil and the conductive composite material. Relatively, the deformation and stress of the over-current protection device caused by punching will also be reduced. Therefore, there is no need for additional process to increase the temperature sensitivity and electrical property stability of the over-current protection device.

Abstract: A method for manufacturing a circular electrode apparatus of a battery for resistance stability improvement comprises the following procedures. First, an electrode structure of a battery including an upper electrode plate, an over-current protection device and lower electrode plate is provided, wherein the over-current protection device is a lamination constituted of an upper metal foil, a current-sensitive layer and a lower metal foil. Secondly, the electrode structure is treated by high-speed impact, vibration, hot-cold impact, acid pickling, water pickling or sand blasting to become the electrode apparatus of the present invention whereby the mean value of the resistance of the electrode apparatuses is below 0.05 ohm, and the deviation of the resistances of the electrode apparatuses is below 0.005 ohm at 25° C.

Abstract: An over-current protection device has the characteristic of resistance tripping at least two times. Regarding the aspect of assembly, the over-current protection device is a laminate including a layer of PTC conductive material, an upper electrode foil and a lower electrode foil. As to the aspect of three-dimensional structure, the over-current protection device comprises a laminate and a first protrusion sticking out of the laminate, and the first protrusion forms an open empty room sunk in the laminate. By controlling the geometry and dimensions of the first protrusion, the relation between temperature and resistance of the over-current protection device can be adjusted.

Abstract: The present invention reveals an over-current protection apparatus comprising a first electrode plate, a second electrode plate, a third electrode plate, a conductive element and a high resistance material layer, where the high resistance material layer may contact the first electrode plate to form a conducting path, the conductive element is connected to the first electrode plate and the second electrode, the thermally expanded conductive element can cut off current, the high resistance material layer is connected to the third electrode plate and the second electrode plate, and the thermal expansion coefficient of the high resistance layer is less than that of the conductive element. By virtue of the thermal expansion of the conductive element due to an over-current, the first electrode plate is departed from the third electrode plate so as to enforce the current flows through the high resistance material layer for current reduction.

Abstract: The present invention reveals an over-current protection apparatus comprising a first electrode plate, a second electrode plate, a third electrode plate, a conductive element and a high resistance material layer, where the high resistance material layer may contact the first electrode plate to form a conducting path, the conductive element is connected to the first electrode plate and the second electrode, the thermally expanded conductive element can cut off current, the high resistance material layer is connected to the third electrode plate and the second electrode plate, and the thermal expansion coefficient of the high resistance layer is less than that of the conductive element. By virtue of the thermal expansion of the conductive element due to an over-current, the first electrode plate is departed from the third electrode plate so as to enforce the current flows through the high resistance material layer for current reduction.

Abstract: The present invention reveals a manufacturing method for over-current protection devices. A current-sensitive material strip is combined with the first and the second electrode strips, and then they are punched to produce over-current protection devices, where each over-current protection device includes a first electrode, a second electrode and a current-sensitive material layer. The combination of the current-sensitive material strip with the first electrode strip and the second electrode strip can be employed by re-flowing soldering or hot pressing followed by tin-lead solder electroplating or solder spotting, so as to facilitate automation applications, and to enhance the throughput.

Abstract: A wire container includes a shell for containing a wire and a reel substantially installed in the shell for winding the wire. The shell consists of two halves. At least one of the halves includes two cutouts defined therein so that two holes are defined in the shell when the halves are assembled. The reel includes two knobs for insertion in a hole defined in each of the halves. Each of the knobs includes two studs projecting from a side thereof. The studs of one of the knobs can be engaged with the studs of the remaining one of the knobs. The wire container includes a position retainer for retaining the wire in a desired wound position. The position retainer includes a number of teeth formed on one of the halves and a number of teeth formed on one of the knobs for engagement with the teeth formed on the half.

Abstract: The present invention discloses a manufacturing method of an over-current protection device, characterized in that the PTC plaque is conducted by punching under frozen state to form the over-current protection devices so as to reduce the heating and temperature rising in the PTC plaque due to punching and temperature difference between the metal foil and the conductive composite material. Relatively, the deformation and stress of the over-current protection device caused by punching will also be reduced. Therefore, there is no need for additional process to increase the temperature sensitivity and electrical property stability of the over-current protection device.

Abstract: An air dryer device including a tapered cylindrical casing consisting of five sections and fastened to a dental 3-way syringe for the holding of the hand, and an air dryer unit fastened inside the tapered cylindrical casing to remove moisture from the air being compressed to the dental 3-way syringe, the air dryer unit consisting of a layer of activated aluminum particles, a layer of activated carbon, and an air filter board respectively separated by wire gauzes.