Integrated heat radiator of fine antipriming pipe parallel flow for automobile

Abstract

The invention discloses a parallel flow integrated heat sink for superfine perforated pipes in a motor vehicle, which comprises an air-conditioning condenser, a water tank radiator and an engine oil cooler, wherein the water tank radiator and the engine oil cooler are arranged in parallel from side to side, separated by a heat-insulating layer, and positioned on the lower end of the air-conditioning condenser together; both ends of the air-conditioning condenser are provided with flow concentrating sections; a plurality of rows of the superfine perforated pipes are connected among the flow concentrating sections; wavy radiating fins are clamped between two rows of the superfine perforated pipes and respectively welded with one row of the superfine perforated pipes; a CO2 (R744) coolant gas-phase inlet pipe and a CO2 (R744) coolant gas-phase outlet pipe are respectively connected to the flow concentrating sections; and the flow concentrating sections on both ends are a plurality of sleeved structures capable of being arranged in the forward direction. The parallel flow integrated heat sink for the superfine perforated pipes in the motor vehicle integrates condensation of the prior vehicle air-conditioner, heat dissipation of a water tank and cooling of engine oil, is modularized, has light the overall mass and small occupied space, and adopts a multivariated parallel flow condenser and a segmented collecting pipe of the multivariated parallel flow condenser, so that refrigerant can flow to and fro for a plurality of times in the condenser and the heat exchange ability is strong.

Description

technical field [0001] The invention relates to a cooling device for a vehicle, in particular to a microporous tube parallel-flow integrated cooling device for a vehicle. The device includes heat exchange components such as air-conditioning condensation, water tank heat dissipation, engine oil cooling, etc. in the form of parallel flow made of micro porous tubes (microchannels) and collecting pipes (sections). Background technique [0002] There are heat exchange devices with different functions and forms in various vehicles, such as condensers in automotive air-conditioning systems, water tank radiators in engine cooling systems, and oil radiators in engine lubrication systems. They all exist independently in the vehicle and are installed in the engine compartment of the vehicle, so they all have their own shortcomings that are difficult to overcome: ①The condenser in the automobile air conditioning system, the water tank radiator in the engine cooling system, and the engin...

AI Technical Summary

Problems solved by technology

They all exist independently in the vehicle and are installed in the engine compartment of the vehicle, so they all have their own shortcomings that are difficult to overcome: ①The condenser in the automobile air conditioning system, the water tank radiator in the engine cooling system, and the engine oil in the engine lubrication system The radiator, etc., occupy a large volume in the engine compartment, which will inevitably lead to a reduction in the cabin space; ②The existing automotive air-conditioning system condensers mainly have the following three structural forms, namely, tube-sheet type, tube-belt type, and stacked For vehicles using tube-fin condensers, severe bumps and vibrations will occur during driving, which will cause looseness between the tubes and fins, which will aggravate the reduction of heat transfer effect; while tube-belt or stacked condensers will be used. Vehicles with evaporators have low heat exchange efficiency due to their large size, heavy weight, insufficient cooling capacity, small effective heat dissipation area, and large wind resistance; ③ Leaked vehicle refrigerant (currently commonly used vehicle refrigerant is R24) Atmospheric ozone layer has caused great damage; ④ There are major problems in the installation and maintenance of the above components

Among them, the main structure of the parallel flow condenser is a unit parallel flow condenser, which is a kind of header on both sides without segmentation, and the refrigerant flows from the header on one side to the collector on the other side in parallel through the parallel installed pipes. The flow tube, the refrigerant in the condenser is only a one-way flow process; and the inner hole of the heat dissipation tube in the pipeline is large, so that the heat exchange between the refrigerant and the tube cannot be completely carried out, so that the refrigerant cannot completely dissipate heat, so not available for CO 2 (R744) Refrigerant

The cooling pipes (radiation pipes) used for the heat dissipation of the water tank and the cooling of the engine oil are large circular pipes, which also cannot completely exchange heat between the refrigerant and the pipes, so that the refrigerant cannot complete the complete heat transfer. lost

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