1results about How to "Improve heat release efficiency" patented technology

This application relates to the field of air conditioner technology and discloses a microchannel heat exchanger and an air conditioner. The microchannel heat exchanger includes: multiple flat tubes, two manifolds, and at least one reversing valve. The reversing valve includes a valve body and a valve core. The valve core is configured to slide between a first position and a second position under the pressure of a fluid. When the valve core is in the first position, it blocks the first fluid inlet, and the second fluid inlet is connected to the fluid outlet. When the valve core is in the second position, it blocks the second fluid inlet, and the first fluid inlet is connected to the fluid outlet. In this application, the reversing valve changes the number of parallel flow paths of the flat tubes by allowing the refrigerant to flow in different directions in the flat tubes and manifolds. When the microchannel heat exchanger is used as an evaporator, the number of parallel flow paths of the flat tubes can be increased step by step, reducing pressure drop and improving heat absorption. When used as a condenser, the number of parallel flow paths of the flat tubes can be decreased step by step, increasing the refrigerant flow rate and improving heat release.