Fixing device for circuit board
AssigneeHon Hai Precision Industry Co., Ltd.
InventorsChieh-Hsiang Lin, Wen-Tang Peng
Life of this patent
Estimating the term…
Abstract
A fixing device for circuit boards with different thickness includes a base board, a number of posts, and a number of fasteners extending through the circuit board and engaging with the posts. A number of fixing holes are defined in the base board. Each post includes a first threaded portion and a second threaded portion selectively screwed in the corresponding fixing holes of the base board. The length of the second threaded portion is different from the length of the first threaded portion. The circuit board is to be supported on a distal end of one of the first and second threaded portions that is not to be screwed in the fixing hole.
Claims9
A fixing device for circuit boards with different thickness, the fixing device comprising:
- a base board defining a fixing hole;
- a post comprising a first threaded portion and a second threaded portion to be selectively screwed in the fixing hole of the base board, a threaded hole defined in each of the first and second threaded portions, wherein the lengths of the first and the second portions are different, and a circuit board is to be supported on a distal end of one of the first and second threaded portions that is not to be screwed in the fixing hole;
- and
- a fastener to extend through the circuit board and engage in the threaded hole of said one of the first and second threaded portions that is not to be screwed in the fixing hole;
- wherein the different lengths of the first and second threaded portions compensate different thicknesses of circuit boards, to maintain top surfaces of the circuit boards of different thicknesses at a same height relative to the base board.
A fixing device for circuit boards with different thicknesses, comprising:
- a base board defining a plurality of fixing holes;
- a plurality of posts each comprising a first threaded portion and an opposite second threaded portion to be selectively screwed in a corresponding one of the plurality of fixing holes of the base board, wherein the lengths of the first and the second portions are different, and a circuit board is to be supported on distal ends of the first or second threaded portions that are not to be screwed in the fixing holes;
- and
- a plurality of fasteners, each to extend through the circuit board and engage in a corresponding one of the plurality of posts via one of the first threaded portion or the second threaded portion of the corresponding post that is not to be screwed in the corresponding fixing hole.
A fixing device comprising:
- a base board defining a threaded hole;
- a post comprising a main body and a first threaded portion and a second threaded portion extending from two opposite ends of the main body, the height of the first threaded portion being greater than the height of the second threaded portion, a threaded hole defined in each of the first and second threaded portions, wherein one of the first and second threaded portions is selectively threaded in the threaded hole of the base board, and a distal end of the other one of the first and second threaded portions supports a circuit board;
- and
- a fastener to extend through the circuit board and threaded in the threaded hole of the other one of the first and second threaded portions;
- wherein upon a condition that the circuit board has less thickness, the first threaded portion is selected to support the circuit board, and upon a condition that the circuit board has greater thickness, the second threaded portion is selected to support the circuit board, thereby to maintain the circuit board at a constant height relative to the base board.
Dependencies are inferred from the claim text.