Capacitive liquid sensor and method for installing capacitive liquid sensor

A capacitive liquid sensor comprising:

• a base member;
• a first conductive terminal pin and a second conductive terminal pin that are passed through the base member, are fixed to the base member via a filler having electrical insulation, and are electrically insulated from each other;
• a first frame that is made of a metallic material and electrically connected to the first conductive terminal pin;
• a second frame that is made of a metallic material and electrically connected to the second conductive terminal pin;
• a plurality of first electrode plates that are each made of a metal plate and are connected and fixed to the first frame;
• and
• a plurality of second electrode plates that are each made of a metal plate and are connected and fixed to the second frame, wherein
• the first frame and the second frame include through-portions, respectively, through which the first electrode plates and the second electrode plates are passed, and are arranged to face each other,
• the first electrode plates and the second electrode plates each include a detection portion and two fixing portions extending from both edges of the detection portion, are each formed in a cross shape in which a longitudinal direction of the detection portion intersects a protruding direction of the fixing portions, and are arranged alternately to face each other,
• in each of the first electrode plates, the fixing portion of the first electrode plate is fixed to the first frame in a state where the detection portion of the first electrode plate is passed through the through-portions of the first frame and the second frame, and
• in each of the second electrode plates, the fixing portion of the second electrode plate is fixed to the second frame in a state where the detection portion of the second electrode plate is passed through the through-portions of the second frame and the first frame.