Liquid cooling module and projection device

A projection device, comprising:

• a lighting module, configured to provide an illumination beam, the lighting module comprising a first heat source and a second heat source;
• a light valve module, disposed on a transmission path of the illumination beam to convert the illumination beam into an image beam;
• a lens module, disposed on a transmission path of the image beam to project the image beam;
• and
• a liquid cooling module, comprising:
• a first cooling unit, comprising a first communication surface and a first cooling surface opposite to each other, the first cooling surface connecting to the first heat source;
• a second cooling unit, comprising a top surface, a second communication surface, and a second cooling surface, wherein the top surface is perpendicular to the first communication surface and opposite to the second cooling surface, and the second cooling surface is connected to the second heat source;
• a heat dissipation component, configured to dissipate heat from a heat dissipation medium;
• and
• a pipeline component, the heat dissipation medium flowing in the pipeline component, the pipeline component comprising a first pipeline, a second pipeline, and a third pipeline, the first pipeline connecting to the heat dissipation component and the first communication surface, the second pipeline connecting to the first communication surface and the second communication surface, the third pipeline connecting to the second communication surface and the heat dissipation component.