Heat conduction silicon grease coating fixture and heat conduction silicon grease coating method

Abstract

The invention discloses a heat conduction silicon grease coating fixture and a heat conduction silicon grease coating method. A vertical frame (2) is fixed on a base (1), and a main air cylinder is fixed on the upper part of the vertical frame (2); a cross frame (7) is horizontally fixed on a top head of the main air cylinder (4); a brush frame (9) is fixed on the cross frame (7), and the lower end of the brush frame (9) is embedded into a rail groove (14); two ends of the cross frame (7) are provided with a motor (18) and a roller (12); a belt (13) is sleeved on the motor (8) and the roller (12) so as to form drive connection; a plurality of auxiliary air cylinders (10) are fixed on the brush frame (9); brush sheets (11) are fixed on the top ends of the air cylinders (10); a screen plate frame (5) is fixed on the cross frame (7); a horizontally arranged screen plate (6) is fixed on the screen plate frame (5); each component of the fixture is driven to complete the coating of heat conduction silicon grease by the driving effect of the main air cylinder (4), the auxiliary air cylinders (10) and the motor (8). Aiming to overcome defects of the prior art, the invention provides the heat conduction silicon grease coating fixture which is simple in structure, is low in cost, can enable the coating quality of the heat conduction silicon grease of an IGBT (insulated gate bipolar transistor) module to be improved, and can be used for improving the efficiency, and the heat conduction silicon grease coating method.

Description

technical field [0001] The invention belongs to the field of production tooling and technology, and in particular relates to a tooling and method for coating heat-conducting silicone grease. Background technique: [0002] As the core component of the power module in the controller, the IGBT module directly affects the quality and life of the power module of the controller. Therefore, it is particularly important to ensure the use effect of the IGBT module. The use effect of the IGBT module depends on the quality of its own heat dissipation. In the product design, its bottom plate is connected with the radiator, and the gap is coated with thermal conductive silicone grease. Thermally conductive silicone grease has excellent thermal performance, excellent stability, temperature resistance and low exudation, and can conduct heat generated by components by filling or coating. It can be seen that meeting the coating process requirements of thermal conductive silicone grease is t...

AI Technical Summary

Problems solved by technology

The traditional thermal grease coating is mostly manual, the manual coating efficiency is low and the coating quality is rough, which cannot meet the requirements of the coating process. There is no special IGBT coating thermal silicon area for production, the site is messy, and the thickness of the thermal grease is inconsistent. , and uneven, affecting the cooling effect

In addition, the manual application method is easy to apply thermal conductive silicone grease to the installation hole of the IGBT, which will change the tightening torque value of the screw and affect the installation quality

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