Abstract: The present invention relates to an electrical device including a printed circuit board (PCB) module accommodated in a case, and more particularly, to an electrical device having a heat dissipation structure using a filler that reduces heat generation outside a case while increasing a heat dissipation efficiency of a PCB module by using the filler filled in the case, and a manufacturing method of the same.

Abstract: The present invention relates to an electrical device including a printed circuit board (PCB) module accommodated in a case, and more particularly, to an electrical device having a heat dissipation structure using a filler that reduces heat generation outside a case while increasing a heat dissipation efficiency of a PCB module by using the filler filled in the case, and a manufacturing method of the same.

Abstract: The present invention relates to an electrical device including a printed circuit board (PCB) accommodated in a case, and more particularly, to an air-pocket prevention PCB, an air-pocket prevention PCB module, an electrical device including the same, and a manufacturing method of an electrical device including the same with improved fluidity of a resin material so that air pockets that may occur when the case is filled with the resin material are easily discharged and the resin material may be evenly filled inside the case.

Abstract: The present invention relates to an electrical device including a printed circuit board (PCB) module accommodated in a case, and more particularly, to an electrical device having a heat dissipation structure using a filler that reduces heat generation outside a case while increasing a heat dissipation efficiency of a PCB module by using the filler filled in the case, and a manufacturing method of the same.

Abstract: The present invention relates to an electrical device including a printed circuit board (PCB) accommodated in a case, and more particularly, to an air-pocket prevention PCB, an air-pocket prevention PCB module, an electrical device including the same, and a manufacturing method of an electrical device including the same with improved fluidity of a resin material so that air pockets that may occur when the case is filled with the resin material are easily discharged and the resin material may be evenly filled inside the case.

Abstract: Provided are a system and a method for monitoring welding operations. The system includes a welding machine, a current sensor sensing an operation time of the welding machine and a welding current, a welding information database storing information of the operation time of the welding machine and the welding current for each welding operator and storing information of a consumed charge amount of the welding machine, which is preset for each welding operation process, a data analyzer checking a charge amount consumed for the operation time by using the sensed operation time of the welding machine and the welding current and determining whether the welding operator achieves a task goal of a corresponding process by comparing the checked consumed charge amount with the preset consumed charge amount for a process performed by the welding machine, and a display unit outputting a result of the determining, performed by the data analyzer, whether the welding operator achieves a task goal of a corresponding process.