Liquid level indicating device and liquid-cooled electric appliance

A liquid level indicating device comprising:

• a moving member which is arranged in a liquid tank storing a cooling liquid and configured to move in a vertical direction in conjunction with variation in a liquid level of the cooling liquid;
• an indicator configured to indicate a remaining amount of the cooling liquid;
• a string member comprising one end connected to the moving member, wherein the indicator includes a scale plate, an indicating pointer, a cylindrical rotary body a barrel portion of which the string member goes around, a shaft portion configured to connect the indicating pointer and the rotary body in a rotating shaft, and a case accommodating these components;
• a plurality of rotary body side guides is provided on an outer periphery of the rotary body, and a plurality of case side guides and a stopper are provided in the case so as to be close to and faced with the rotation side guide;
• and
• an other end of the string member is fixed to the stopper, the string member is configured to go around the rotary body while reciprocating by alternately being engaged with the rotary body side guide and the case side guide and then, the string member is withdrawn to an outside of the case, and is configured to transmit a height position of the moving member to the indicating pointer through rotation of the rotary body by operating in conjunction with movement of the moving member connected to the one end.

A liquid level indicating device comprising:

• a moving member which is arranged in a liquid tank storing a cooling liquid and configured to move in a vertical direction in conjunction with variation in a liquid level of the cooling liquid;
• a string member comprising one end portion connected to the moving member, the string member being configured to be bendable and non-extendable in a longitudinal direction;
• an indicator which is connected to an other end portion of the string member and configured to indicate a height position of the moving member as a remaining amount of the cooling liquid by operating in conjunction with a movement of the moving member through the string member;
• a tube member configured to be bendable and non-extendable in the longitudinal direction, the tube member configured to connect the liquid tank and the indicator to each other with the string member passed therethrough,
• a float configured to float on the cooling liquid;
• an extension and contraction portion which extends and contracts with movement of the float in the vertical direction, wherein:
• the moving member is provided inside the extension and contraction portion;
• and
• an inside of the indicator, an inside of the tube member, and an inside of the extension and contraction portion are configured to communicate with each other and are configured in a sealed space.