Miniature heat exchanger

Abstract

The invention relates to a miniature heat exchanger. Heat exchanging fins are provided with heat conduction windows and elliptic casing pipes. The sizes of the heat conduction windows are different and are distributed in a staggered mode. A plurality of heat exchanging fins are stacked and the heat conduction windows in each heat exchanging fin are respectively aligned at one casing pipe. The heat exchanging fins are installed on an elliptic U-shaped pipe in a sleeved mode through the elliptic casing pipes. The elliptic casing pipes and the elliptic U-shaped pipe are fastened through a high-pressure internal mould expanding pipe or a mechanical expanding pipe. The heat conduction windows bulge upwards from the surfaces of the heat exchanging fins to form a prismatoid structure, wherein the bottom face of a prismatoid, the front side face of the prismatoid, the back side face of the prismatoid, and the inner portion of the prismatoid form a communicating structure. Media inside an elliptic pipe can generate radial whirl so as to enable central media and periphery media to roll and exchange, and therefore the media inside the pipe can conduct heat exchanging with media outside the pipe completely, a plurality of prismatoid heat conduction windows are arranged on the heat exchanging fins, heat inside the pipe can be rapidly diffused to the periphery and efficiency of heat exchanging is improved.

Description

Technical field: [0001] The patent of the present invention relates to a heat exchange device, in particular to a miniature heat exchanger which adopts elliptical pipes and sets heat conduction windows on heat exchange fins to improve heat exchange efficiency. Background technique: [0002] The circular pipe transports the medium, and the medium in the pipe exchanges heat with the medium outside the pipe through the circular pipe. Since the flow rate of the medium in the center of the circular pipe is faster than that of the surrounding medium, most of the medium in the center does not perform heat exchange sufficiently, resulting in The heat exchange efficiency is relatively low. Invention content: [0003] The purpose of the patent of the present invention is to provide a micro heat exchanger which adopts elliptical pipes and sets heat conduction windows on heat exchange fins to improve heat exchange efficiency. [0004] In order to achieve the above object, the present...

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Problems solved by technology

[0002] The circular pipe transports the medium, and the medium in the pipe exchanges heat with the medium outside the pipe through the circular pipe. Since the flow rate of the medium in the center of the circular pipe is faster than that of the surrounding medium, most of the medium in the center does not perform heat exchange sufficiently, resulting in The heat exchange efficiency is relatively low

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