Liquid cooling device, coolant circulation system and liquid leakage detecting method

A liquid cooling device, comprising:

• a liquid cooling conductor, including a chamber defined therein for communicating with outside, the chamber being configured to accommodate a coolant, and the surface of the liquid cooling conductor being provided with at least one communicating port communicating with the chamber;
• wherein the liquid cooling conductor is formed by joining at least three combination blocks, and the three combination blocks comprise at least one metal conductor, a first insulator and a second insulator, and at least a part of the metal conductor is exposed in the chamber and configured to contact the coolant flowing in the chamber;
• the first insulator includes a through hole and a first trough, the first trough is located on a first side of the first insulator, and the through hole communicates with the first trough and a second side of the first insulator;
• the second insulator is joined to the first side of the first insulator to cover the first trough;
• and the metal conductor is joined to the second side of the first insulator to cover the through hole, so that the first trough and the through hole are sealed to form the chamber;
• a detecting probe, disposed on the liquid cooling conductor and normally electrically disconnected from the metal conductor;
• and
• a determining circuit, electrically connected to the metal conductor and the detecting probe, and generating a liquid leakage alarm signal when the metal conductor and the detecting probe are electrically connected;
• wherein a seam is formed between the at least two combination blocks, and the detecting probe is disposed beside the seam;
• or the detecting probe surrounds the at least one communicating port.

A liquid leakage detecting method, comprising:

• providing a liquid cooling conductor forming a chamber by joining at least two combination blocks;
• wherein a seam is formed between the at least two combination blocks, at least one of the at least two combination blocks is a metal conductor, and at least a part of the metal conductor is exposed in the chamber and configured to contact a coolant flowing in the chamber;
• disposing a detecting probe beside the seam, or disposing the detecting probe around at least one communicating port communicating with the chamber formed interior of the liquid cooling conductor, wherein one of the at least two combination blocks is a metal conductor, the other combination block is an insulator, and the detecting probe is disposed on the insulator without contacting the metal conductor;
• or the at least two combination blocks are metal conductors, and the liquid cooling device further comprises an insulating patch attached to one of the metal conductors, and the detecting probe is attached to the insulating patch;
• providing a first detecting potential for the detecting probe, and providing a second detecting potential for the metal conductor on the liquid cooling conductor;
• and
• determining whether the detecting probe and the metal conductor are electrically connected, and generating a liquid leakage alarm signal when the detecting probe and the metal conductor are electrically connected, wherein a sealing member surrounds the seam or the communicating port and located inside the detecting probe, another sealing member surrounds the seam or the communicating port and located outside the detecting probe, the another sealing member is a conductive rubber ring and the conductive rubber ring is electrically connected to the detecting probe.