Patent ID: 11913670
Assignee: GD MIDEA HEATING & VENTILATING EQUIPMENT CO., LTD.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F | IPC F

Claim 11:
12. A refrigerating device, comprising:
a heat recovery switching device comprising a main machine, the main machine comprising:
a sealed box container, comprising:
a plurality of box bodies spliced to define a sealed cavity and provided with a through hole in communication with the sealed cavity, the sealed cavity being configured to accommodate a pipeline assembly of the main machine, and the pipeline assembly being coupled to an external pipeline via the through hole; and

a housing fitted over an outside of the sealed box container and defining a coupling hole in corresponding communication with the through hole of the sealed box container;
an indoor unit coupled to an indoor unit interface of the heat recovery switching device; and
an outdoor unit coupled to an outdoor unit interface of the heat recovery switching device;
wherein a diameter of the through hole gradually increases along direction of inside of the sealed cavity to outside of the sealed cavity, and the through hole is provided with a sealing ring.