US 11,806,809 B2
Joining structure and joining method
Junji Fujiwara, Osaka (JP); and Tatsuyuki Nakagawa, Osaka (JP)
Assigned to PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD., Osaka (JP)
Filed by Panasonic Intellectual Property Management Co., Ltd., Osaka (JP)
Filed on Sep. 3, 2020, as Appl. No. 17/011,557.
Application 17/011,557 is a continuation of application No. PCT/JP2018/041378, filed on Nov. 7, 2018.
Claims priority of application No. 2018-038911 (JP), filed on Mar. 5, 2018.
Prior Publication US 2020/0398378 A1, Dec. 24, 2020
Int. Cl. B23K 103/18 (2006.01); B23K 26/244 (2014.01); B23K 26/323 (2014.01)
CPC B23K 26/244 (2015.10) [B23K 26/323 (2015.10)] 5 Claims
OG exemplary drawing
 
1. A joining structure, comprising:
a first member formed of a metal material;
a second member formed of a metal material of a same type as that of the first member which can be welded to the first member; and
a third member formed of a material that is difficult to weld to the first member and the second member,
the first member, the second member, and the third member being jointed to each other, wherein
at least one of the first member and the second member includes a protrusion,
a through portion in which the protrusion is inserted is formed in the third member,
the first member and the second member are welded to each other via the through portion with the third member interposed therebetween in a region corresponding to the protrusion, and
an entire outer peripheral portion of an overlapping portion of the first member and the third member is welded, and an entire outer peripheral portion of an overlapping portion of the second member and the third member is welded.