摘要:
In a side view LED, elongated first and second lead frames each have a finger extending therefrom. The finger of the first lead frame is disposed in parallel with that of the second lead frame. An LED chip and a protective device are mounted on mounting areas of the first and second lead frames, respectively and electrically connected to the first and second lead frames. A package body houses the first and second lead frames to form first and second opened areas. The first opened area is externally opened around the LED chip, the second opened area is externally opened around the protective device, and the partition wall is formed therebetween. First and second encapsulants are provided to the first and second opened areas, respectively to encapsulate the LED chip and protective device, respectively. At least the first encapsulant is transparent.
摘要:
The invention relates to a high power LED package, in which a package body is integrally formed with resin to have a recess for receiving an LED chip. A first sheet metal member is electrically connected with the LED chip, supports the LED chip at its upper partial portion in the recess, is surrounded by the package body extending to the side face of the package body, and has a heat transfer section for transferring heat generated from the LED chip to the metal plate of the board and extending downward from the inside of the package body so that a lower end thereof is exposed at a bottom face of the package body thus to contact the board. A second sheet metal member is electrically connected with the LED chip spaced apart from the first sheet metal member for a predetermined gap, and extends through the inside of the package body to the side face of the package body in a direction opposite to the first sheet metal member. A transparent sealant is sealingly filled up into the recess. The LED package raises thermal radiation efficiency with a simplified structure in order to reduce the size and thickness thereof.
摘要:
The invention relates to an LED housing and its fabrication method. In the LED housing, a heat conducting part has a chip mounting area, a heat connecting area opposed to the chip mounting area and a groove formed adjacent to the heat connecting area. An electrical connecting part has a wiring area placed adjacent to the chip mounting area and an external power connecting area led to the wiring area. A housing body is made of molding resin, and integrally holds the heat conducting part and the electrical connecting part while isolating the electrical connecting part from the heat conducting part. The housing body is provided with a recess extended from a portion of the groove of the heat conducting part to a side of the housing body. In this fashion, the invention can overcome restricted application problems by isolating the electrical connecting parts from the heat conducting part.
摘要:
An LED housing, in which a heat conducting part has a chip mounting area, a heat connecting area opposed to the chip mounting area and a neck between them. Fixing parts have first ends engaged with the neck. An electrical connecting part has a wire connecting area placed adjacent to the chip mounting area and an external power connecting area connected to the wire connecting area. A housing body of molding material integrally holds the heat conducting part, the fixing parts and the electrical connecting part while isolating the electrical connecting part from the heat conducting part. The LED housing fixes the neck of the heat conducting part at both sides, thereby stably coupling the heat conducting part to the housing body. The fixing parts can spread heat from the heat conducting part to lateral regions of the LED housing, thereby more efficiently spreading heat.
摘要:
Disclosed is a novel sulphonic acid salt of sibutramine, which has good physicochemical properties. Also disclosed are a method of preparing the compound and a pharmaceutical composition comprising the compound.
摘要:
A refrigerator is disclosed wherein an ion generator is arranged in a cold air duct which supplies cold air to a storage compartment, and a desired portion of the cold air duct is treated for anti-static. The ions from the ion generator are used for the purpose of sterilization and deodorization and are effectively discharged into the storage compartment. The anti-static-treatment of the cold air duct prevents the ions generated from the ion generator from being lost due to static in the cold air duct. The anti-static treatment is carried out by coating polyethylene on a portion of the cold air duct. The cold air duct includes a plurality of uniformly spaced cold air outlets, whereby the ions generated from the ion generator are uniformly distributed into the overall portion of the storage compartment through the cold air outlets.
摘要:
A content providing system and method for a streaming service are provided. The content providing system is connected to at least one of wired/wireless terminals and a wide area server. The content providing system includes at least one of local servers and a manage node. The local servers store contents received from the wide area server and provide context index information. The managing node manages the context index information by the contents stored in the local servers and the wide area server, and determines a storing location of a corresponding content from the context index information if a content request message is received from a terminal. Also, the managing node transmits the requested content to the terminal through a wired/wireless Internet network by transmitting a content-transmission message to local servers having the corresponding content or the wide area server.
摘要:
Provided is an apparatus and method for all-optically controlling both a gain and a gain flattening. The apparatus includes: a first amplifier automatically controlling a gain of the apparatus through a feedback loop while amplifying a received optical signal; a fixed gain flattening unit receiving the amplified optical signal from the first amplifier and compensating for the gain according to a wavelength of the received optical signal; and a second amplifier automatically controlling the gain through a feedback loop while amplifying the optical signal input from the fixed gain flattening unit. Accordingly, even if the number of channels of an input WDM optical signal varies, both of a gain and a gain flattening can be all-optically controlled.
摘要:
A drum assembly of a laundry dryer includes a cylindrical drum main body formed through a seam-welding process, a drum head including a main head rim having a predetermined width in a direction toward a center of the drum main body, the main head rim being coupled to a first end of the drum main body and provided with a plurality of elevated portion, and a support sleeve bent from an end of the main head rim, a drum rear wall coupled to a second end of the drum main body and provided with a plurality of hot wind introducing holes, and a lift coupled to an inner circumference of the drum main body to lift the laundry.
摘要:
A side view LED includes an insulating substrate, and first and second metal layers each having first and second areas spaced apart from each other at a predetermined gap and disposed on top and underside surfaces of the insulating substrate, respectively. First and second electrical connectors are formed in a thickness direction of the insulating substrate, connecting the first area of the first metal layer to that of the second metal layer, and the second area of the first metal layer to that of the second metal layer. An LED chip is mounted on the first metal layer and electrically connected to the first and second areas. Also, a wall part is attached to the first metal layer to form an opened area around the LED chip. A protective device is mounted on an underside surface of the second metal layer and electrically connected to the first and second areas.