Hangzhou Sanhua Research Institute Co., Ltd.

Haobo Jiang

Lin-Jie Huang

Li-Zhi Wang

Jian-Long Jiang

The present application discloses a microchannel flat tube and a microchannel heat exchanger. The microchannel flat tube includes a flat tube body and a row of channels. The row of channels is arranged in the flat tube body along a width direction. The row of channels extends through the flat tube body along a length direction. A cross-section of each channel includes a first width in the width direction and a first height in a thickness direction. The row of channels at least includes a first group of first channels, a second group of second channels and a third group of third channels along the width direction. The first widths of the first channels, the second channels and the third channels decrease at a fixed rate, thereby facilitating the control of the thickness of the microchannel flat tube and improving the heat exchange efficiency of the third channels.

Microchannel flat tube and microchannel heat exchanger

The present application discloses a microchannel flat tube and a microchannel heat exchanger. The microchannel flat tube includes a flat tube body and a row of channels. The flat tube body includes a first plane, a second plane, a first side surface and a second side surface. The first side surface and the second side surface are arranged on opposite sides of the flat tube body. The row of channels is arranged in the flat tube body. The row of channels extends through the flat tube body. The row of channels extends through the flat tube body. The row of channels at least includes a first channel, a second channel and a third channel which are arranged in a width direction. Cross-sectional areas of the first channel, the second channel and the third channel in the width direction change according to an exponential function.

The present application discloses a microchannel flat tube and a microchannel heat exchanger. The microchannel flat tube includes a flat tube body and a row of channels. The row of channels is arranged in the flat tube body along a width direction. The row of channels extends through the flat tube body along a length direction. A cross-section of each channel includes a first width in the width direction and a first height in a thickness direction. The row of channels at least includes a first channel, a second channel and a third channel along the width direction. The first widths of the first channel, the second channel and the third channel are decreased at a fixed ratio, thereby facilitating the control of the thickness of the microchannel flat tube and improving the heat exchange efficiency of the third channel.

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Haobo Jiang