Energy storage converter and energy storage device

An energy storage converter, comprising:

• a mounting box;
• an inductor;
• and
• a cooling plate,
• wherein the mounting box comprises a mounting cavity, the inductor is mounted in the mounting cavity, and the mounting box is mounted to the cooling plate;
• wherein the mounting box comprises a bottom wall, one of the bottom wall and the cooling plate is provided with a heat dissipation protrusion and the other one of the bottom wall and the cooling plate is provided with a heat dissipation groove, and the heat dissipation protrusion is engaged with the heat dissipation groove;
• and
• wherein the mounting box comprises a first side wall and a second side wall opposite to each other, the first side wall comprises a first surface facing away from the second side wall, the second side wall comprises a second surface facing away from the first side wall, and a distance between the first surface and the second surface gradually increases along a direction towards the cooling plate.