Patent ID: 11953268
Assignee: DONGGUAN HANXU HARDWARE PLASTIC TECHNOLOGY CO., LTD.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC B  F  H

Claim 0:
1. A method of riveting a clustered radiation fin set to a heat pipe in a tight fit manner being based on a tight-fit riveting structure, the tight-fit riveting structure comprising: a radiation fin set defined by locking a plurality of radiation fins together and at least one heat pipe, said radiation fin set including an accommodation slot adapted to accommodate said at least one heat pipe, said at least one heat pipe being located in said accommodation slot, and said at least one heat pipe being positioned in said accommodation slot in a tight fit manner by subjecting two sides of said accommodation slot of said radiation fin set to a riveting operation; said plurality of radiation fins each including a fin body, said accommodation slot being formed on said fin body and formed by passing through a front face and a rear face of said fin body, said accommodation slot defining a communicating mouth passing through a peripheral edge of said fin body, said peripheral edge of said fin body having respective deformation notches recessedly formed on two sides of said communicating mouth, a first bending part being formed by bending a periphery of said accommodating slot of said fin body forwardly, said first bending part being bent with respect to said fin body by an L shape, a region of said first bending part of each said radiation fin located between said deformation notches and said communicating mouth being defined as first riveting and deforming portions; two side edges of said fin body being each bent forwardly and provided with an engagement plate, an engagement hole being formed on said engagement plate, whereby said plurality of radiation fins are locked together as said radiation fin set by embedding said engagement plate of one radiation fin into said engagement hole of said engagement plate of an adjacent one of said radiation fins in front of said one radiation fin; and after said at least one heat pipe is disposed in said accommodation slot of said radiation fin set, said first riveting and deforming portions on said two sides of said communicating mouth of said accommodation slot being riveted towards a surface of said at least one heat pipe, and said first riveting and deforming portions thereby being deformed to clamp said at least one heat pipe in a tight fit manner;
the method comprising:
step 1: locking all of said plurality of radiation fins in a row whereby said radiation fin set is defined and then putting said at least one heat pipe into said accommodation slot formed on said radiation fin set;
step 2: putting said radiation fins which are locked in a row and said at least one heat pipe into a lower fixing die, a top of said lower fixing die being provided with a plurality of lower positioning plates, with said plurality of lower positioning plates arranged to correspond to spaces between said plurality of radiation fins of said radiation fin set, with said plurality of lower positioning plates adapted to abut against a bottom of said first bending part of each of said plurality of radiation fins; and
step 3: preparing a riveting punch whose bottom is provided with a plurality of upper positioning plates arranged to correspond to said spaces between said plurality of radiation fins of said radiation fin set, and riveting said first riveting and deforming portions towards said at least one heat pipe by a pressing of said plurality of upper positioning plates of said riveting punch, and said first riveting and deforming portions thereby being deformed to clamp said at least one heat pipe in a tight fit manner.