D-shaped collecting pipe heat exchanger

Abstract

The invention discloses a D-shaped collecting pipe heat exchanger. The D-shaped collecting pipe heat exchanger comprises collecting pipes, a liquid inlet connector, a liquid outlet connector, a support, a wind scooper, flat pipes, fins and flow partition plates, the wind scooper comprises a frame body formed by sequentially connecting a front plate, a rear plate, a top plate and a bottom plate front and back and a cover body fixed to the front side of the frame body, the collecting pipes seal openings in the two ends of the frame body correspondingly, the flow partition plates are fixed in inner cavities of the collecting pipes, the flat pipes are located in the frame body and horizontally fixed between the adjacent faces of the two collecting pipes in sequence from top to bottom, the finsare located in the frame body and horizontally fixed in gaps between the two adjacent flat pipes, a first air inlet is formed in the front side of the cover body, a second air inlet is formed in theupper end of the front plate, an air outlet is formed in the lower end of the rear plate, and the liquid inlet connector and the liquid outlet connector are fixed to the upper end and the lower end ofthe outer side of one collecting pipe respectively. According to the D-shaped collecting pipe heat exchanger, the installation is convenient, cleaning is easy, and the heat exchange effect is good.

Description

【Technical field】 [0001] The invention relates to the technical field of automobile air conditioners, in particular to the technical field of a D-type header heat exchanger. 【Background technique】 [0002] Automobile air conditioner is a ventilation device that controls the temperature in the car compartment to the best state, provides a comfortable riding environment for passengers, reduces travel fatigue, creates good working conditions for drivers, and ensures driving safety. The heat exchanger in the automobile air conditioner usually consists of several flat tubes arranged in parallel, a header perpendicular to the ends of the flat tubes and communicating with them, and a flow divider located in the header so that the refrigerant turns back and flows out. The heat exchanger uses a fan to blow the air on the surface of the flat tube to take away the heat, so as to realize the cooling of the internal refrigerant. However, since the refrigerant flows back in one direction...

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Problems solved by technology

However, since the refrigerant flows back in one direction in the heat exchanger, the highest temperature of the refrigerant is on the side where the refrigerant flows into the heat exchanger, and the fan is usually installed in the middle of the heat exchanger, so the heat exchange The area with large air flow of the heat exchanger does not correspond to the area with high surface temperature of the heat exchanger, and the heat exchange efficiency is low

Moreover, since the heat exchanger is usually arranged in front of the car, a large amount of particles and impurities blown by the wind tend to accumulate on the surface, which affects the heat dissipation effect and is difficult to clean

In addition, because the upper and lower side plates of the heat exchanger are usually welded together with the core fins, and only partially welded or not in contact with the header, the upper and lower side plates cannot be equipped with brackets, and the installation method is limited

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