Heat exchanger with defrosting delaying effect and refrigerating device
A technology for heat exchangers and fruit and vegetable compartments, which is applied to household refrigeration devices, refrigerators, and refrigeration components. It can solve the problems of long time, high energy consumption and high frequency of defrosting during shutdown, and achieves stable performance and improved use. Life, corrosion prevention effect
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Embodiment 1
[0037] like Figure 1-Figure 2 As shown, this embodiment discloses a heat exchanger with delayed defrosting effect. A plurality of guide grooves 12, the inner and outer surfaces of the guide grooves 12 are coated with a hydrophobic and anti-corrosion coating structure, so that the condensed water can be quickly collected into water droplets and discharged.
[0038] Preferably, the hydrophobic anti-corrosion coating structure contains a polysiloxane coating.
[0039] Hydrophobic mechanism: The polysiloxane molecular chain is curled and has a helical structure, the intermolecular force is very weak, and the surface energy is low. The surface of the layer, and the siloxane molecules on the molecular chain are aligned at the coating / air interface to obtain higher surface hydrophobicity.
[0040] Delayed defrosting mechanism: The diameter of the water droplet is much larger than the distance of the milky convex on the coating surface, so when the water droplet is in contact with ...
Embodiment 2
[0067] like Figure 1-Figure 3 As shown, this embodiment discloses a refrigeration device, comprising the above-mentioned heat exchanger 1 with delayed defrosting effect, a refrigerating compartment 3, an ice making compartment 4, a freezing compartment 5 and a fruit and vegetable compartment 6 arranged in order from top to bottom. The heat exchanger 1 is an evaporator 2 , the evaporator 2 is located behind the freezer compartment 5 and the ice making compartment 4 , a fan is arranged above the evaporator 2 , and a condenser 7 and a compressor are arranged behind the fruit and vegetable compartment 6 . 8. The compressor 8 is connected to the evaporator 2.
[0068] A first air supply duct and a first return air duct are arranged between the refrigerator compartment 3 and the ice making compartment 4 , and a second air supply duct and a second return air duct are arranged between the freezer compartment 5 and the fruit and vegetable compartment 6 .
[0069] After the evaporator...
Embodiment 3
[0073] This embodiment discloses a refrigeration device, comprising the above-mentioned heat exchanger 1 with delayed defrosting effect, a refrigerating compartment 3, an ice making compartment 4, a freezing compartment 5 and a fruit and vegetable compartment 6 arranged in order from top to bottom. 1 is an evaporator 2, the evaporator 2 is respectively installed relative to the rear of the refrigerator compartment 3, the ice making compartment 4, the freezer compartment 5 and the fruit and vegetable compartment 6, and a fan is arranged above the evaporator 2, opposite to the rear of the fruit and vegetable compartment 6. A condenser 7 and a compressor 8 are provided, and the compressor 8 is connected to the evaporator 2 .
[0074] Instead of using an air-cooled circulation system to lower the temperature of each chamber, directly place the evaporator 2 with a hydrophobic coating in each temperature-controlled chamber. The defrosting time of the unit is shortened, and the evapo...
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