Intercooler

Abstract

The invention discloses an intercooler which comprises a heat dissipation assembly. The heat dissipation assembly comprises multiple chips (1) and multiple fins (2). The chips (1) are sequentially stacked from top to bottom, and the fins (2) are arranged between every two adjacent chips (1). The fins (2) are made of copper, and the upper surfaces and the lower surfaces of the fins (2) are fixedly welded to the chips (1) on the upper sides of the fins and the chips (1) on the lower sides of the fins through nickel-based filler. The nickel-based filler is prepared from, by weight, 6.0%-8.0% of Cr, 4.0%-5.0% of Si, 2.75%-3.5% of B, 2.5%-3.55 of Fe and the balance Ni. The intercooler is good in heat dissipation effect, the fins and the chips are welded through the nickel-based filler, and corrosion resistance is good, so that the performance of the intercooler can be improved, and the service life of the intercooler can be prolonged.

Description

technical field [0001] The present invention relates to an intercooler. Background technique [0002] The intercooler is a heat exchanger, which is a device that can make two or more fluids not in direct contact, but heat or energy is transferred to each other. According to the different cooling medium, the intercooler can be divided into air-to-air cooler and water-to-air cooler. Air-to-air coolers use cold air as a medium to exchange heat with high-temperature air, while water-to-air coolers use cold water as a cooling medium to exchange heat with high-temperature air. [0003] The intercooler is usually a device used to reduce the intake air temperature of the engine. In order to improve the ventilation efficiency of the turbocharged engine, it is generally used as a turbocharged accessory. When the air enters the turbocharged, its temperature will increase significantly. The density also decreases accordingly, and the intercooler just plays the role of cooling the air....

AI Technical Summary

Problems solved by technology

[0006] 1. Due to the poor thermal conductivity of iron, using iron fins as heat exchange components will affect the heat dissipation effect of the intercooler, thereby affecting the performance of the car or equipment. Moreover, the copper solder has poor corrosion resistance, which affects the intercooler. cooler life

[0007] 2. The upper surface and the lower surface of the fin are respectively fixed with the upper chip and the lower chip of the fin by brazing solder. Due to the high melting point of the brazing solder, a higher welding temperature is required. In the brazing furnace During the welding process, the maximum temperature reaches 1100°C, and the time is about 410 minutes, which consumes a lot of energy and is not environmentally friendly. Moreover, high-temperature welding will also affect the metallographic structure of the fins and chips, thereby affecting the strength of the intercooler. reduce its service life

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