Vibrating device

A vibrating device comprising:

• a piezoelectric element;
• a resin member having electric insulation and including a first principal surface joined to the piezoelectric element and a second principal surface opposing the first principal surface;
• a vibrating member including a third principal surface joined to the second principal surface of the resin member and a fourth principal surface opposing the third principal surface and made of metal;
• and
• a pair of electrodes disposed on the first principal surface of the resin member and electrically connected to the piezoelectric element, wherein
• the pair of electrodes is separated from the piezoelectric element,
• a thickness of the resin member is less than a thickness of the piezoelectric element, and the thickness of the resin member is less than a thickness of the vibrating member, and
• the thickness of the vibrating member is equal to or greater than the thickness of the piezoelectric element.

A vibrating device comprising:

• a piezoelectric element;
• a resin member having electric insulation and including a first principal surface joined to the piezoelectric element and a second principal surface opposing the first principal surface;
• a vibrating member including a third principal surface joined to the second principal surface of the resin member and a fourth principal surface opposing the third principal surface and made of metal;
• and
• a pair of electrodes disposed on the first principal surface of the resin member and electrically connected to the piezoelectric element, wherein
• the pair of electrodes is separated from the piezoelectric, element, and
• the resin member covers a whole of the third principal surface of the vibrating member.

A vibrating device comprising:

• a piezoelectric element including a piezoelectric body including a first principal surface and a second principal surface opposing each other, and a first electrode and a second electrode disposed on the first principal surface;
• a resin member having electric insulation and including a third principal surface joined to the piezoelectric element and a fourth principal surface opposing the third principal surface;
• a vibrating member including a fifth principal surface joined to the fourth principal surface of the resin member and a sixth principal surface opposing the fifth principal surface and made of metal;
• a third electrode and a fourth electrode disposed on the third principal surface of the resin member;
• a first conductive resin layer connecting the first electrode and the third electrode to each other;
• and
• a second conductive resin layer connecting the second electrode and the fourth electrode to each other.

A vibrating device comprising:

• a piezoelectric element;
• a resin member having electric insulation and including a first principal surface and a second principal surface opposing each other;
• a vibrating member including a third principal surface and a fourth principal surface opposing each other and made of metal;
• a first adhesive layer joining the piezoelectric element and the first principal surface of the resin member;
• a second adhesive layer joining the second principal surface of the resin member and the third principal surface of the vibrating member;
• and
• a pair of electrodes disposed on the first principal surface of the resin member and electrically connected to the piezoelectric element, wherein
• the pair of electrodes is separated from the piezoelectric element.