US Patent 11185947 Welding structure and welding method for metal member

A welding structure for a metal member includes a first member containing a metal member, a second member containing a metal member, a first solidifying portion, a second solidifying portion, and a third solidifying portion. The first solidifying portion is present from a first surface to a second surface of the first member. The second solidifying portion has a first end that is present in the second member and a second end that is connected to the first solidifying portion. The third solidifying portion has a first end that is present in the second member and a second end that is connected to the first solidifying portion. The third solidifying portion is shorter than the second solidifying portion. The second solidifying portion and the third solidifying portion are separated from each other in the second member.