Joint module, server, and computing system

A server comprising:

• a chassis;
• a sensor located on the chassis and configured for sensing a leak of coolant;
• and a joint module located on the chassis, the joint module comprising:
• a shell fastened to the chassis;
• a plug connector placed on the shell and movable in a first direction between a first position and a second position, the plug connector being configured for connecting a plug;
• a folding mechanism connected to the shell and the plug connector inside the chassis, the folding mechanism being configured for moving the plug connector;
• and a switch placed in the chassis and can be switched between a first condition and a second condition;
• wherein when the switch is in the first condition, the folding mechanism is unfolded, the plug connector is on the first position and is sided out of the chassis and connected to the plug, when the sensor senses a leak of coolant, the switch turns to the second condition, the folding mechanism is folded, the plug connector is on the second position and is sided toward the chassis and disconnected to the plug;
• and the shell comprises two side walls, each of the two side walls defines a sliding groove, the plug connector comprises two protrusions, each of the two protrusions is slidably placed in each of the two sliding grooves, for guiding the plug connector moving in the first direction.

A computing system comprising:

• a rack comprising a plurality of plugs;
• and a plurality of servers placed in the rack, each of the plurality of servers comprising:
• a chassis;
• a sensor configured for sensing a leak of coolant;
• and a joint module located on the chassis with a spring, the joint module comprising:
• a shell;
• a plug connector placed on the shell and movable in a first direction between a first position and a second position, the plug connector being configured for connecting one of the plurality of plugs;
• a folding mechanism connected to the shell and the plug connector, the folding mechanism being configured for moving the plug connector;
• and a switch placed on the shell with a first condition and a second condition, wherein when the switch is in the first condition, the folding mechanism is unfolded, the plug connector is on the first position and is connected to the one of the plurality of plugs, when the sensor senses the leak of coolant in the chassis, the switch is in the second condition, the folding mechanism is folded, the plug connector is on the second position and disconnects the one of the plurality of plugs;
• and the folding mechanism comprises a first folding piece and a second folding piece;
• wherein the switch comprises a first magnet, a second magnet, and a demagnetization part, the second magnet is located on the second folding piece, the first magnet and the demagnetization part is located on the shell, when the switch is in the first condition, the demagnetization part is powered off, the first magnet attracts the second folding piece, the folding mechanism is unfolded, when the switch is in the second condition, the demagnetization part is powered on, the demagnetization part demagnetizes the first magnet, the folding mechanism is folded by the spring.