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1. (CN106288526) Micro-channel heat exchanger, refrigerator and air-cooled refrigerator

Office : China
Application Number: 201610794832.4 Application Date: 31.08.2016
Publication Number: 106288526 Publication Date: 04.01.2017
Publication Kind : A
IPC:
F25B 39/00
F25D 11/00
F25D 17/06
F25D 21/14
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
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
D
REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
11
Self-contained movable devices associated with refrigerating machinery, e.g. domestic refrigerators
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
D
REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
17
Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
04
for circulating gas, e.g. by natural convection
06
by forced circulation
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
D
REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT COVERED BY ANY OTHER SUBCLASS
21
Defrosting; Preventing frosting; Removing condensed or defrost water
14
Collecting or removing condensed and defrost water; Drip trays
CPC:
F25B 39/00
F25D 11/00
F25D 17/062
F25D 21/14
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) Micro-channel 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 micro-channel heat exchanger, a refrigerator and an air-cooled refrigerator. The micro-channel heat exchanger comprises two collecting pipes, a plurality of heat exchange tubes and fins, wherein the two collecting pipes are arranged in parallel. Two ends of the plurality of heat exchange tubes are connected to the two collecting pipes, respectively, the plurality of heat exchange tubes are bent along the length direction to form a plurality of pipe layers, and the open area of part of the heat exchange tubes are greater than that of the rest heat exchange tubes. Each of the fins is arranged between adjacent two pipe layers or on the outer side of the pipe layer in the outermost layer, each of the fins extends in a corrugated shape in the extension direction of each of the heat exchange tubes, each of the fins extends continuously in the extension direction of each of the collecting pipes, and ventilating holes are formed in each of the fins. The micro-channel heat exchanger disclosed by the invention solves the problems that the water hanging amount on the surfaces of the fins is relatively great and water cannot be thoroughly discharged, and the condition that obstinate ice is generated on the surface of the micro-channel heat exchanger to affect the heat exchange efficiency is avoided. In addition, the defrosting period can be prolonged, the refrigerant flows of the plurality of heat exchange tubes are uniform, and the heat exchange property is enhanced.
(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,部分换热管的过流面积大于其余换热管的过流面积。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。