Abstract:
The present disclosure is concerned with a special electric component (1) such as a motor, an accumulator, or an electric subassembly having at least one soldering pin (100), in particular at least two soldering pins, for solder joining the special electric component to a printed circuit board (210, 210A), wherein the at least one soldering pin has a connection end (101) that comprises a front section (110) at the free end of the soldering pin and a first section (120) adjacent the front section, where the front section has a width (w1) that is smaller than the width (w2) of the first section, in particular wherein the width of the front section is at least 25% smaller than the width of the first section, in particular at least 50% smaller. The present disclosure is also concerned with a printed circuit board assembly and an electric device.
Abstract:
This invention relates to a radiant heat structure for a pin type power LED which is used in an automobile, a lamp, an advertisement board, etc. The configuration of the radiant heat structure includes: an LED device; a first lead frame that is electrically connected to the LED device, and has plural leads extended toward a substrate to supply electric power to the LED device; a second lead frame which faces the first lead frame and has plural leads extended toward the substrate; a molding part, where the upper portions of the first and second lead frames are molded with a transparent material, and wherein the LED device is included; and a heatsink which receives the heat from the LED device and radiates the heat to the outside by being connected to the leads of the first lead frame. Each lead of the first and second lead frames passes through the space between the molding part and the substrate. The radiant heat structure radiates generated heat to the outside efficiently through a lead frame connected to an LED chip so that the durability of components may be extended and the characteristic change of components caused by heat may be minimized. In addition, it is expected that radiation efficiency can be improved and the application of current can be increased. Furthermore, the fabrication cost can be remarkably reduced since the radiant heat structure is applicable to an existing LED fabricating process.
Abstract:
An electronic module MO2 comprises a housing (1) within which an electronic circuit (2) resides, and a mounting tag (15) for mounting the electronic module MO2 on a printed circuit board PCB. The mounting tag (15) comprises, from an end towards the housing, a first portion (15A), a second portion (15B) and a third portion (15C). The first portion (15A) has a first width inferior to a second width of the second portion (15B) so as to define a first abutment (16A). The first abutment will come into contact with a printed circuit board PCB when the mounting tag (15) is inserted in a hole (18) of that printed circuit board having a hole width comprised between the first width and the second width. The second width of the second portion 15B is inferior to a third width of the third portion (15C) so as to define a second abutment (16B). The second abutment will come into contact with a printed circuit board PCB when the mounting tag (15) is inserted in a hole (19) of that printed circuit board having a hole width comprised between the second width and the third width.
Abstract:
A method for providing a mechanical/electrical interconnection between two circuit boards, and the interconnection components required therefore, include a pin and socket each having a tail portion, a shoulder portion and a head portion. The tail portion of the pin is sized so as to fit into a plated through hole of the first board, the head portion is sized so as to allow an automated device to capture the head portion and to rest on top of the plated through hole when inserted therein, and the shoulder portion is sized in relation to the plated through hole so as to rest inside the plated through hole and to allow a predetermined amount of solder to flow under the head portion and down into the plated through hole, but not as far down as the tail portion, thereby assisting in centering the pin in the through hole. Upon heating to a solder reflow temperature, a ring of solder, around the periphery of the head portion of the pin and the shoulder portion of the socket, flows under the head of the pin and the shoulder of the socket, thereby forming a soldered electrical connection between the pin and the first board, and the socket and the second board. By aligning the pin with the socket and inserting the tail portion of the pin into the cavity of the socket, a separable reliable mechanical and electrical interconnection is formed between the first board and the second board.