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1. (CN106322850) Microchannel heat exchanger, refrigerator and air-cooled refrigerator

Office : China
Application Number: 102016000796976 Application Date: 31.08.2016
Publication Number: 106322850 Publication Date: 11.01.2017
Publication Kind : A
IPC:
F25B 39/02
F28D 1/047
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
25
REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION OR SOLIDIFICATION OF GASES
B
REFRIGERATION MACHINES, PLANTS, OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
39
Evaporators; Condensers
02
Evaporators
F MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
28
HEAT EXCHANGE IN GENERAL
D
HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT; HEAT STORAGE PLANTS OR APPARATUS IN GENERAL
1
Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
02
with the heat-exchange conduits immersed in the body of fluid
04
with tubular conduits
047
the conduits being bent, e.g. in a serpentine or zig-zag
CPC:
F25B 39/022
F25B 2339/023
F28D 1/0477
Applicants: HEFEI MIDEA REFRIGERATOR CO., LTD.
HEFEI HUALING CO., LTD.
MIDEA GROUP CO., LTD.
Inventors: TANG XUEQIANG
MENG XIANCHUN
REN WEI
Priority Data:
Title: (EN) Microchannel heat exchanger, refrigerator and air-cooled refrigerator
(ZH) 微通道换热器及冰箱、风冷冰箱
Abstract: front page image
(EN) The invention discloses a microchannel heat exchanger, a refrigerator and an air-cooled refrigerator. The microchannel heat exchanger comprises two header pipes, multiple heat exchange pipes and fins. The two header pipes are arranged in parallel. The two ends of the multiple heat exchange pipes are connected with the two header pipes correspondingly. The multiple heat exchange pipes are bent in the length direction to form multiple pipe layers. The refrigerant circulation resistance of some heat exchange pipes is smaller than that of the rest of the heat exchange pipes. Each fin is arranged between every two adjacent pipe layers or arranged on the outer side of the outermost pipe layer. In the extending direction of the heat exchange pipes, each fin extends in a corrugate shape. In the extending direction of the heater pipes, each fin continuously extends. The fins are provided with air holes. According to the microchannel heat exchanger, the problem that a large amount of water is attached to fin surfaces and cannot be thoroughly drained is solved, and the phenomenon that dense ice is produced on the surface of the microchannel heat exchanger, and therefore heat exchange efficiency is affected can be prevented. In addition, the defrosting period can be prolonged, the refrigerant flow of the multiple heat exchange pipes is promoted to be uniform, and heat exchange performance is improved.
(ZH) 本发明公开了一种微通道换热器及冰箱、风冷冰箱。微通道换热器包括:两个集流管、多个换热管和翅片,两个集流管平行设置。多个换热管的两端分别连接两个集流管,多个换热管沿其长度方向弯折形成多个管层,部分换热管的制冷剂流通阻力小于其余换热管的制冷剂流通阻力。每个翅片设在相邻两个管层之间或设在最外层的管层的外侧,在换热管的延伸方向上每个翅片呈波纹状延伸,在集流管的延伸方向上每个翅片连续延伸,翅片上设有通风孔。根据本发明的微通道换热器,解决了翅片表面挂水量较大、无法排尽的问题,可防止微通道换热器表面产生顽冰而影响换热效率。另外,可以延长化霜周期,促使多个换热管的制冷剂流量均匀,提升换热性能。