Positioning shaft for notebook computer

Abstract

A positioning rotation shaft for a notebook computer, comprising a rotating bracket (1), a stopper (2), a shaft core rod (3), a plurality of first annular fins (4) and a plurality of second annular fins (5), wherein the rotating bracket (1) comprises a support portion (6), a first shaft sleeve (7) and a second shaft sleeve (8); the first shaft sleeve (7) is located at a first end of a first end surface of the rotating bracket (1), and the second shaft sleeve (8) is located in the middle of the first end surface of the rotating bracket (1); a groove (9) is provided in a region between a second end of the first end surface of the rotating bracket (1) and the second shaft sleeve; the first annular fin (4) and the second annular fin (5) are both provided with a notch groove (10); the first annular fin (4) and the second annular fin (5) are sleeved on a polished rod portion (31) of the shaft core rod (3) and alternately arranged; a gap is left between the first annular fin (4) and the polished rod portion (31), and the end of the first annular fin (4) is in close-fitting contact with the polished rod portion (31); inner walls of the first annular fin (4) and the second annular fin (5) are both provided with two recessed grooves(18), and the two recessed grooves (18) are respectively located on two sides of the notch groove (10); and the gap portion of the first annular fin (4) communicates with the two recessed grooves (18) of the first annular fin (4). The positioning rotation shaft of the structure has stable and uniform torsion and friction.

Description

technical field [0001] The invention relates to a positioning rotating shaft for a notebook computer, in particular to a computer positioning rotating shaft used between a liquid crystal screen board and a mainboard of a notebook computer. Background technique [0002] With the development of science and technology, various electronic products continue to appear, which bring great changes to people's lives, especially the use of computers has changed people's lifestyles and accelerated their pace of life. In the past two decades, with the development of material science and the emergence of smaller integrated chips, computers have evolved into a notebook computer that is small in size, thin in thickness, light in weight and easy to carry around. Most of the existing notebooks are of flip-top type. In order to meet the design considerations of thinness, smallness and light weight, they are generally designed to be composed of two parts: the base composed of the host body and ...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the rotating shaft of a notebook computer is generally provided with an annular oil guide groove directly on the pivot of the rotating shaft, and the rotating shaft is made of zinc alloy. This design has the following disadvantages: the rotating shaft of a notebook computer with this structure has slow heat dissipation, There will be local heating, and the lubricating oil in the oil tank will be easily melted. This requires a higher melting point of the lubricating oil in the oil tank. There is an annular oil guide groove on the pivot, which is not conducive to the storage of lubricating oil. When the top cover of the laptop is closed, it may cause oil leakage. At the same time, there is an annular oil guide groove on the pivot, and it is not easy to form a uniform oil film.

Images