초록 ▼

A method and assembly for mounting printed circuit boards (PCBs) to a chassis. In one embodiment, a plurality of internally-threaded mounting posts are secured (e.g., press-fit) to the chassis and the PCB includes a plurality of holes into which the mounting posts extend. Each hole includes a pair o

A method and assembly for mounting printed circuit boards (PCBs) to a chassis. In one embodiment, a plurality of internally-threaded mounting posts are secured (e.g., press-fit) to the chassis and the PCB includes a plurality of holes into which the mounting posts extend. Each hole includes a pair of keepout pads to isolate internal PCB circuitry (other than ground planes) from electric contact with the assembly components. A threaded faster is used to secure the assembly. In another embodiment, a collar is added to the assembly and the extending portion of the post is elongated such that it extends into the collar, providing additional thread engagement for thinner PCBs. In a third embodiment, hat-section components are secured (e.g., via wave soldering) over respective holes in the PCB. The hat-section component includes a counterbore through which the threaded fastener passes and is sized to receive a portion of a threaded standoff.

대표청구항 ▼

1. A printed circuit board (PCB)-to-chassis mount comprising:an internally-threaded standoff, adapted to be fixedly secured to a chassis upon assembly; a PCB subassembly, comprising: a PCB, having a hole defined therein through which a portion of the internally-threaded standoff passes through upon

1. A printed circuit board (PCB)-to-chassis mount comprising:an internally-threaded standoff, adapted to be fixedly secured to a chassis upon assembly; a PCB subassembly, comprising: a PCB, having a hole defined therein through which a portion of the internally-threaded standoff passes through upon assembly; and a hat-section component, having a counterbore defined therein including a major diameter portion adapted to receive a portion of the internally threaded standoff, a minor diameter portion, and a shoulder, and a flange disposed about a lower periphery thereof that is fixedly secured to the PCB such that the counterbore is substantially coincident with the hole in the PCB and the shoulder of the counterbore is disposed above a top surface of the PCB; and a threaded fastener that is threaded into the internally-threaded standoff upon assembly, wherein, upon assembly, a head portion of the threaded fastener is in contact with a top end of the hat-section component and a shank portion of the threaded fastener passes through the counterbore, and the shoulder of the counterbore is in contact with an upper end of the internally threaded standoff such that the PCB is indirectly coupled to the internally-threaded standoff via the hat-section component.