Air conditioner indoor unit air duct structure and air conditioner

Abstract

The invention discloses an air conditioner indoor unit air duct structure and an air conditioner. The air conditioner indoor unit air duct structure comprises an air inlet part, an air exchange part,an air outlet part, a base and an air conditioner shell, in the case of the base, the base is mounted on the inner wall of the air conditioner shell, in the case of the air inlet part, the air inlet part is located above the air conditioner shell, in the case of the air exchange part, the air exchange part comprises a cross-flow fan and a heat exchanger, the cross-flow fan is located in the middleof the air conditioner shell, the heat exchanger is located above the cross-flow fan, in the case of the air outlet part, the air outlet part comprises a volute, a volute tongue body and an air deflector, the volute and the volute tongue body are fixed on the base, moreover, the volute is located on the left side of the lower portion of the cross-flow fan, and a volute end is arranged at the position, closest to the cross-flow fan, of the volute. According to the provided air conditioner indoor unit air duct structure and air conditioner, the air conditioner indoor unit air duct structure issimple, the noise of the air conditioner can be remarkably reduced, the air sound quality is improved, and obvious gasp sound does not appear.

Description

technical field [0001] The invention relates to the technical field of air conditioner structure design, in particular to an air duct structure of an air conditioner indoor unit and an air conditioner. Background technique [0002] After the air conditioner is powered on, the low-pressure steam of the refrigerant in the refrigeration system is sucked by the compressor, compressed into high-pressure steam, and then discharged to the condenser, so as to promote the continuous circulation of indoor air and achieve the purpose of lowering the temperature. The wall-mounted indoor air conditioner The continuous circulation of the air in the machine is completed by the cross-flow fan and the motor. When the impeller of the cross-flow fan rotates, the airflow enters the cascade from the opening of the impeller, passes through the inside of the impeller, and is discharged into the volute from the other side of the cascade to form a working The airflow, the airflow velocity field is u...

AI Technical Summary

Problems solved by technology

[0002] After the air conditioner is powered on, the low-pressure steam of the refrigerant in the refrigeration system is sucked by the compressor, compressed into high-pressure steam, and then discharged to the condenser, so as to promote the continuous circulation of indoor air and achieve the purpose of lowering the temperature. The wall-mounted indoor air conditioner The continuous circulation of the air in the machine is completed by the cross-flow fan and the motor. When the impeller of the cross-flow fan rotates, the airflow enters the cascade from the opening of the impeller, passes through the inside of the impeller, and is discharged into the volute from the other side of the cascade to form a working The airflow, the airflow velocity field is unstable, and there is a vortex in the impeller, which is located near the volute tongue. The existence of the vortex makes the output end of the impeller generate circulating airflow. Outside the vortex, the airflow streamline in the impeller is arc-shaped, so , the flow velocity at each point on the outer circumference of the impeller is inconsistent. The closer to the vortex center, the greater the velocity, and the closer to the volute casing, the smaller the velocity. The airflow velocity and pressure at the outlet of the fan are not uniform, so the indoor unit When the air conditioner is running, it will produce a certain amount of unstable noise, among which there may be abnormal sounds with impure sound quality produced by the air pressure part. What's more, after the air conditioner has been running for a period of time, it will be blocked by dust or other fine substances. The air duct brings obvious panting sounds, which often affect people's comfort when using air conditioners, and even affect people's sleep quality

Images