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Spreading test device

A test device and squeegee technology, which can be used in measuring devices, testing of machine/structural components, instruments, etc., and can solve problems such as low efficiency and poor control of scraping force.

Pending Publication Date: 2020-07-10
GUANGDONG INST OF INTELLIGENT MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, in the production and application of most enterprises, the workpiece or module is placed in the jig, pressed on the steel mesh, and the silicon grease is manually placed on the steel mesh and scraped back and forth evenly by manual use of a simple scraping device, which is affected by people. Larger, not only less efficient, but also difficult to control the scraping force

Method used

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Embodiment Construction

[0026] In order to make the above objects, features and advantages of the present invention more comprehensible, specific implementations of the present invention will be described in detail below in conjunction with the accompanying drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. However, the present invention can be implemented in many other ways different from those described here, and those skilled in the art can make similar improvements without departing from the connotation of the present invention, so the present invention is not limited by the specific implementations disclosed below.

[0027] It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected ...

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Abstract

The invention relates to a spreading test device. The device comprises a rack, a first driving mechanism, a second driving mechanism and a scraper assembly. During testing, silicone grease is placed on a steel mesh; a workpiece is pressed at the bottom of the steel mesh; the second driving mechanism drives the scraper assembly to move; the first driving mechanism drives the scraper assembly to move; the scraper assembly forwards scrapes the heat-conducting silicone grease in a first direction; the distribution condition of the heat-conducting silicone grease on the surfaces of the workpiece and the steel mesh is observed, and the deformation condition of the steel mesh is observed. The second driving mechanism drives the scraper assembly to move, the first driving mechanism drives the scraper assembly to move, the scraper assembly reversely scrapes the heat conduction silicone grease in the first direction, the distribution situation of the heat conduction silicone grease on the workpiece surface and the steel mesh surface is observed, and the steel mesh deformation situation is observed. And the scraper assembly, the driving mechanism and the like are adjusted by the heat-conducting silicone grease effect on the surfaces of the workpiece and the steel mesh to perform a reciprocating cycle experiment. And a driving mechanism driving mode is adopted, so that a manual spreading mode can be avoided, the efficiency is effectively improved, and the scraping force is uniform.

Description

technical field [0001] The invention relates to the technical field of testing devices, in particular to a squeegee testing device. Background technique [0002] The heat transfer between the heat sink, IGBT (Insulated Gate Bipolar Transistor, insulated gate bipolar transistor) and CPU is mainly through conduction, and the heat transfer between the heat sink, IGBT and CPU is realized through direct contact. Thermally conductive silicone grease is currently widely used on the IGBT and CPU mounting surfaces on the heat sink. The significance is to fill the gap between the heat sink and the IGBT or between the heat sink and the CPU to make the contact surface between the two larger. [0003] The composition of thermal conductive silicone grease is silicone oil and filler, the filler is finely ground powder, and the composition is ZnO, Al 2 o 3 , boron nitride, silicon carbide, aluminum powder, etc., silicone oil ensures a certain fluidity, and the filler fills the tiny gap be...

Claims

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Application Information

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IPC IPC(8): G01M99/00
CPCG01M99/005
Inventor 徐志杰莫庆龙罗俏甘林黎宇弘
Owner GUANGDONG INST OF INTELLIGENT MFG
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