Novel energy car PTC heater multi-core shared cooling fin and production method thereof

Abstract

The invention relates to a novel energy car PTC heater multi-core shared cooling fin and a production method thereof. A rectangular metal sheet is provided with a plurality of long and narrow penetrating grooves, one side of the edge of each penetrating groove is bulged to form a rectangular pyramid cylindrical flange having an inclining angle and close to the center of the penetrating groove, thefour rectangular pyramid cylindrical flanges simultaneously sleeve a plurality of PTC heater cores, and a plurality of core cooling fins can be simultaneously installed by virtue of one-step assembling; the height of the rectangular pyramid cylindrical flange is greater than the height of the folded edge, so that a smooth circulation space is formed between two adjacent cooling fins from middle part to top part, a heat exchanging passage capable of producing a chimney effect is formed, the dissipating speed and dissipating efficiency of the heat produced by the multiple cores of the PTC heater can be increased, and the heat can be concentrated to be discharged from the circulation space extending from middle part to top part between two adjacent cooling fins, and the heating effect can beeffectively improved; and the number of components is reduced, the installation and connection procedures can be simplified, time and labor are saved, the working efficiency is improved, and the production cost is reduced.

Description

technical field [0001] The invention relates to a heat sink shared by a multi-core body of a PTC heater of a new energy vehicle and a manufacturing method thereof. Background technique [0002] PTC heaters are usually equipped with multiple cores, and several heat sinks are installed on each core to improve the heating effect. The number of heat sinks on each core is large, and each heat sink on multiple cores needs to be separately The semi-finished products are produced through punching and blanking, stamping and bending, and then connected to each core body by welding or riveting, or folded and combined to form waves and other shapes, and then fixed and assembled with each core body. There are a large number of parts, the installation and connection steps are cumbersome, and the single process is highly repetitive, which is easy to cause visual fatigue, consumes a lot of time and labor, high production costs, and low work efficiency. Contents of the invention [0003] ...

AI Technical Summary

Problems solved by technology

[0002] PTC heaters are usually equipped with multiple cores, and several heat sinks are installed on each core to improve the heating effect. The number of heat sinks on each core is large, and each heat sink on multiple cores needs to be separately The semi-finished products are produced through punching and blanking, stamping and bending, and then connected to each core body by welding or riveting, or folded and combined to form waves and other shapes, and then fixed and assembled with each core body. There are a large number of parts, the installation and connection steps are cumbersome, and the single process is highly repetitive, which is easy to cause visual fatigue, time-consuming and labor-intensive, high production cost, and low work efficiency

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