Heat exchanger and air conditioner having same
AssigneeSamsung Electronics Co., Ltd.
InventorsSangjun Park, Sungtae Park, Kookjeong Seo, Jungsoo Lim, Won Ju
Life of this patent
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Abstract
A heat exchanger includes a plurality of tubes in which a refrigerant flows, heat-exchanger fins provided between the plurality of tubes, and a filler coupling the heat-exchanger fins to the plurality of tubes, wherein each of the plurality of tubes comprises a first aluminum alloy, each of the heat-exchanger fins comprises a second aluminum alloy, the filler comprises a third aluminum alloy, the plurality of tubes have a corrosion potential of −745 mV to −695 mV, the filler has a corrosion potential of −810 mV to −720 mV, and the heat-exchanger fins have a corrosion potential of −810 mV to −740 mV.
Claims15
A heat exchanger comprising:
- a plurality of tubes in which a refrigerant flows;
- heat-exchanger fins provided between the plurality of tubes;
- and
- a filler coupling the heat-exchanger fins to the plurality of tubes,
- wherein each of the plurality of tubes comprises a first aluminum alloy that comprises an alloy composition including Ga,
- wherein each of the heat-exchanger fins comprises a second aluminum alloy,
- wherein the filler comprises a third aluminum alloy,
- wherein the plurality of tubes have a corrosion potential of −745 mV to −695 mV,
- wherein the filler has a corrosion potential of −810 mV to −720 mV, and
- wherein the heat-exchanger fins have a corrosion potential of −810 mV to −740 mV.
An air conditioner comprising:
- a compressor;
- an indoor heat exchanger;
- an outdoor heat exchanger;
- and
- an expansion valve,
- wherein at least one of the indoor heat exchanger and the outdoor heat exchanger comprises:
- a plurality of tubes in which a refrigerant flows;
- heat-exchanger fins provided between the plurality of tubes;
- and
- a filler coupling the heat-exchanger fins to the plurality of tubes,
- wherein each of the plurality of tubes comprises a first aluminum alloy that comprises an alloy composition including Ga,
- wherein each of the heat-exchanger fins comprises a second aluminum alloy,
- wherein the filler is formed of a third aluminum alloy,
- wherein the plurality of tubes have a corrosion potential of −745 mV to −695 mV,
- wherein the filler has a corrosion potential of −810 mV to −720 mV, and
- wherein the heat-exchanger fins have a corrosion potential of −810 mV to −740 mV.
A tube comprising an aluminum alloy comprising an alloy composition of Al-aMn-bMg-cZn-dCr-eGa,
- wherein the tube has a corrosion potential of −745 mV to −695 mV, and
- wherein a, b, c, d, and e satisfy:
- 70≤52a−11.6b−87c+0.15d−0.37e≤−70, and
- 0.25≤a≤1.2, 0.05≤b≤1.2, 0.05≤c≤1.0, d≤0.2, and e≤0.1.
Dependencies are inferred from the claim text.