Element module and PV inverter module comprising same

An element holder comprising:

• a base;
• a coupling protrusion extended from a first surface of the base and comprising a coupling hole;
• and
• an element accommodating part in which a first element is accommodated,
• wherein the element accommodating part comprises:
• a first region opened toward to a direction of the first surface of the base;
• and
• a second region opened toward to a direction of the second surface of the base which is opposite to the direction of the first surface of the base, and
• wherein the first region and the second region are overlapped at least in part.

An inverter module comprising:

• a substrate;
• a first element electrically connected to the substrate;
• an element holder accommodating the first element;
• a heat dissipation pad whose one surface is in contact with the first element accommodated in the element holder;
• and
• a heat sink disposed on the other surface of the heat dissipation pad, wherein the element holder comprises a base and an element accommodating part formed in the base to accommodate the first element,
• wherein the element accommodating part comprises:
• a first region in which the body of the first element is disposed, and opened toward to a direction of a first surface of the base;
• and
• a second region in which a connecting pin of the first element is disposed, and opened toward to a direction of a second surface of the base which is opposite to the direction of the first surface of the base,
• wherein the first region and the second region are overlapped at least in part, and
• wherein the substrate, the element holder, the heat dissipation pad, and the heat sink are integrally screw-coupled together.