Appliance having touch sensor assembly

A touch sensor assembly, comprising:

• a touch board attached to a rear side of a panel, the panel having one or more touch points configured to receive touch input;
• a piezo disc comprising a first electrode and a second electrode, the first electrode being fixed to a rear side of the touch board and disposed at a front side of the piezo disc that faces the touch board;
• a pressing portion movably coupled to the touch board and configured to contact the first electrode, the pressing portion being electrically connected to a first wire disposed on the touch board;
• a fixing base that fixes the piezo disc to the rear side of the touch board, that supports the second electrode, and that is configured to contact the second electrode, the fixing base being electrically connected to a second wire disposed on the touch board;
• and
• a holder that is disposed rearward of the fixing base, that supports side portions of the piezo disc and a rear portion of the piezo disc, and that is configured to provide a fixing force that fixes the piezo disc to the rear side of the touch board,
• wherein the holder includes a thermal conductive material, is electrically connected to the second electrode at a position in contact with the piezo disc, and is electrically connected to the fixing base.

A touch sensor assembly, comprising:

• a touch board attached to a rear side of a panel, the panel having one or more touch points configured to receive touch input;
• a piezo disc comprising a first electrode and a second electrode, the first electrode being fixed to a rear side of the touch board and disposed at a front side of the piezo disc that faces the touch board;
• a pressing portion movably coupled to the touch board and configured to contact the first electrode, the pressing portion being electrically connected to a first wire disposed on the touch board;
• a fixing base that fixes the piezo disc to the rear side of the touch board, that supports the second electrode, and that is configured to contact the second electrode, the fixing base being electrically connected to a second wire disposed on the touch board;
• and
• a holder that is disposed rearward of the fixing base, that supports side portions of the piezo disc and a rear portion of the piezo disc, and that is configured to provide a fixing force that fixes the piezo disc to the rear side of the touch board,
• wherein the holder comprises:
• a rear side support portion that supports the rear portion of the piezo disc;
• support wings that extend from edges of the rear side support portion toward the touch board and that support the side portions of the piezo disc, and
• fixing legs that extend outward of the support wings in a direction parallel to a plane including the touch board and that are fixed to the fixing base of the touch board.

A touch sensor assembly, comprising:

• a touch board attached to a rear side of a panel, the panel having one or more touch points configured to receive touch input;
• a piezo disc comprising a first electrode and a second electrode, the first electrode being fixed to a rear side of the touch board and disposed at a front side of the piezo disc that faces the touch board;
• a pressing portion movably coupled to the touch board and configured to contact the first electrode, the pressing portion being electrically connected to a first wire disposed on the touch board;
• and
• a fixing base that fixes the piezo disc to the rear side of the touch board, that supports the second electrode, and that is configured to contact the second electrode, the fixing base being electrically connected to a second wire disposed on the touch board,
• wherein the pressing portion comprises a surface that includes an anti-corrosion material and that is electrically connected to the first electrode.

A touch sensor assembly, comprising:

• a touch board attached to a rear side of a panel, the panel having one or more touch points configured to receive touch input;
• a piezo disc comprising:
• a first electrode and a second electrode, the first electrode being fixed to a rear side of the touch board and disposed at a front side of the piezo disc that faces the touch board, and
• an extension that extends outward from the second electrode;
• a pressing portion movably coupled to the touch board and configured to contact the first electrode, the pressing portion being electrically connected to a first wire disposed on the touch board;
• and
• a fixing base that fixes the piezo disc to the rear side of the touch board, that supports the second electrode, and that is configured to contact the second electrode, the fixing base being electrically connected to a second wire disposed on the touch board,
• wherein the extension is fixed to the fixing base, and
• wherein the extension is bent from an end of the second electrode toward the first electrode, or bent from the end of the second electrode away from the first electrode.