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What is the difference between a water-cooled plate and a heat exchanger?

The water-cooling plate is a device for heat dissipation of electronic equipment. Its working principle is to transfer the heat of the equipment to the water through the flow of water, and then take away the heat through the circulation of water, thereby realizing the heat dissipation of the equipment. Water cooling plates are usually made of metal materials with small channels inside for the flow of water to increase the heat dissipation surface area.
Heat exchanger is a broader concept that can be used in a variety of applications, including air conditioning systems, automotive engine cooling systems, heat exchange in chemical production, etc. The purpose of a heat exchanger is to transfer thermal energy from one fluid to another to achieve a change in temperature or a balance of thermal energy. Heat exchangers can use different principles, such as heat conduction, convection, and radiation, to achieve heat transfer.
Therefore, the water-cooled plate is a specific heat exchanger specifically used for heat dissipation of electronic equipment. Its main features are the production of metal materials and the flow of water for heat transfer. Heat exchanger is a broader concept that can be used for heat energy transfer in different fields.