Drainage structure of automobile air conditioner evaporator

Abstract

The invention discloses an automobile air conditioner evaporator drainage structure which comprises an evaporator shell, a drainage cavity is formed in the evaporator shell, a drainage hole is formed in the bottom of the drainage cavity, a step structure is arranged in the evaporator shell, a drainage channel is formed in the step structure, the drainage channel is arranged in an inclined mode, and the drainage hole is communicated with the drainage cavity. The lower end of the drainage channel is connected to the drainage cavity, the drainage channel is provided with a first side wall and a second side wall, a first flow deflector is arranged on the first side wall, a second flow deflector is arranged on the second side wall, the first flow deflector and the second flow deflector are obliquely arranged in the drainage channel, and the first flow deflector and the second flow deflector are arranged between the first flow deflector and the second side wall. And water passing gaps are formed between the second flow deflectors and the first side wall. The air conditioner has the beneficial effects that the air volume loss can be reduced, the refrigeration efficiency is improved, whistling sound is avoided, positive pressure drainage can be formed, and it is guaranteed that condensate water is discharged out of the evaporator timely and efficiently.

Description

technical field [0001] The invention relates to an evaporator, in particular to a drainage structure for an automobile air conditioner evaporator. Background technique [0002] The evaporator is the core component of the automotive air-conditioning system. Its function is to evaporate the low-pressure refrigerant from the expansion valve and absorb the heat of the air in the car, so as to achieve the purpose of cooling the car. [0003] During the heat exchange process of the evaporator, a large amount of water droplets will condense inside the shell. In order to ensure the continuous cooling of the evaporator, the condensed water should be discharged in time. In the prior art, drain holes are usually set directly at the bottom of the evaporator shell to drain the condensed water. The problem with this design is that the draining process of the drain holes will lead to serious loss of air volume, and the cooling effect of the air conditioning system will be greatly reduced. ...

AI Technical Summary

Problems solved by technology

In the prior art, drain holes are usually set directly at the bottom of the evaporator shell to drain the condensed water. The problem with this design is that the drainage process of the drain holes will lead to serious loss of air volume, and the cooling effect of the air conditioning system will be greatly reduced.

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