Patent ID: 11946677
Assignee: DAIKIN INDUSTRIES, LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 6:
7. A refrigerant flow path unit comprising:
a unit body that:
comprise 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
a second plate that has a second opening that communicates with the first opening and is laminated to the first plate,

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,
the refrigerant pipe comprises:
a first refrigerant pipe; and
a second refrigerant pipe having a diameter smaller than a diameter of the first refrigerant pipe, and

the first refrigerant pipe has a greater joint length to be joined to the first plate and the second plate in a pipe axis direction than that of the second refrigerant pipe.