US 12,134,148 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 Feb. 15, 2022, as Appl. No. 17/671,817.
Application 17/671,817 is a continuation of application No. PCT/JP2020/032642, filed on Aug. 28, 2020.
Claims priority of application No. 2019-162387 (JP), filed on Sep. 5, 2019.
Prior Publication US 2022/0168836 A1, Jun. 2, 2022
Int. Cl. B23K 9/007 (2006.01); B23K 9/02 (2006.01); B23K 9/173 (2006.01); B23K 9/23 (2006.01)
CPC B23K 9/007 (2013.01) [B23K 9/02 (2013.01); B23K 9/173 (2013.01); B23K 9/23 (2013.01); Y10T 29/49213 (2015.01)] 6 Claims
OG exemplary drawing
 
1. A joint structure including a first member made of a metal material, a second member made of a material that is difficult to be welded to the first member, and a third member made of a filler material and welded to the first member, the first member, the second member, and the third member being joined together,
the second member including a through-portion penetrating toward the first member,
the third member being welded to the first member through the through-portion,
at least one of overlapped surfaces of the first member and the second member including a recess formed into a space separate from the through-portion, the recess being recessed so as to surround an entire periphery of the through-portion,
the recess being formed into a space separate from a welded part that is a welding site where the first member and the third member are welded together, the recess being recessed so as to surround an entire periphery of the welded part,
at least one of the first member or the second member including an injection hole communicating with the recess, and
the recess being provided with a sealing material injected from the injection hole, the sealing material closing a gap between the overlapped surfaces of the first member and the second member.