US 11,946,677 B2
Refrigerant flow path unit and refrigeration apparatus
Junichi Hamadate, Osaka (JP); Fumiaki Koike, Osaka (JP); Asahi Ono, Osaka (JP); Ayumi Kubo, Osaka (JP); Masato Okuno, Osaka (JP); and Naritaka Yakura, Osaka (JP)
Assigned to DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed by DAIKIN INDUSTRIES, LTD., Osaka (JP)
Filed on Sep. 28, 2023, as Appl. No. 18/476,601.
Application 18/476,601 is a continuation of application No. PCT/JP2022/016001, filed on Mar. 30, 2022.
Claims priority of application No. 2021-059693 (JP), filed on Mar. 31, 2021.
Prior Publication US 2024/0027113 A1, Jan. 25, 2024
Int. Cl. F25B 41/40 (2021.01); B23K 1/00 (2006.01)
CPC F25B 41/40 (2021.01) [B23K 1/0012 (2013.01)] 12 Claims
OG exemplary drawing
 
1. A refrigerant flow path unit comprising:
a unit body that:
comprises plates that are laminated together, and
has an interior in which a refrigerant flow path is formed;
a refrigerant pipe; and
a first brazing filler metal that joins the unit body to the refrigerant pipe, wherein
the plates of the unit body include:
a first plate that has a first opening and is disposed at an end of the unit body in a first direction in which the plates are laminated; and
a second plate that has a second opening that communicates with the first opening and is disposed second from the end of the unit body in the first direction,
the refrigerant pipe is inserted into the first opening and the second opening,
the first brazing filler metal joins an inner peripheral surface of the first opening and an inner peripheral surface of the second opening to an outer peripheral surface of the refrigerant pipe, and
the first plate is thinner than the second plate.