Liquid cooling heat dissipation device

A liquid cooling heat dissipation device for a coolant flowing in one direction comprising:

• a bottom seat, comprising a plurality of heat dissipation members, a plurality of flow channels formed between the heat dissipation members;
• a baffle plate, arranged on the bottom seat, the baffle plate defining a plurality of slot groups arranged in parallel, each of the slot groups in fluid communication with each of the plurality of flow channels;
• a press plate, arranged on the baffle plate, the press plate defining a plurality of slot groups matching the plurality of slot groups of the baffle plate;
• a cover, arranged on the press plate covering each of the slot groups, the cover defining a cavity and a through hole, the cavity being concave from a side of the cover facing the press plate and in fluid communication with each of the slot groups to form a chamber between the cover and the press plate, two opposite sides of the chamber respectively communicated to the through hole and each of the slot groups;
• a base seat configured to press against the cover thereby causing the press plate to press the baffle plate against the heat dissipation members, the base seat and the cover defining an outlet chamber therebetween;
• and
• a pump having an impellor located in the outlet chamber;
• wherein an inlet chamber is formed between the cover and the bottom seat, the inlet chamber in fluid communication with each of the plurality of flow channels;
• and
• wherein the device is configured such that a suction force may be generated by the pump to pull fluid sequentially from the inlet chamber, the plurality of flow channels, the slot groups, the chamber, the through hole, and then into the outlet chamber.