[특허]Heat exchanger with flat tubes

LG Electronics Inc.

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특허 상세정보

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내보내기 페이스북 공유 트위터 공유 카카오톡 공유

Heat exchanger with flat tubes

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F28F-001/40 F28F-001/10 F28F-001/42
미국특허분류(USC)	165/177; 165/146
출원번호	US-0755324 (2004-01-13)
우선권정보	KR-10-2003-0061858(2003-09-04)
발명자 / 주소	Chin,Sim Won Hong,Kee Soo Chung,Moon Kee
출원인 / 주소	LG Electronics Inc.
대리인 / 주소	Birch, Stewart, Kolasch &
인용정보	피인용 횟수 : 7 인용 특허 : 6

초록
▼

A heat exchanger including first and second header tanks for receiving and discharging refrigerant. Further, the first and second header tanks are spaced apart from each other by a predetermined distance. Also include is a plurality of flat tubes each having opposite ends respectively connected to the first and second header tanks, in which each of the flat tubes has channels through which the refrigerant scatters and flows, and the channels have a different capacity from each other. Further included is a cooling member for discharging heat of the refri...

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청구항
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What is claimed is: 1. A heat exchanger comprising: first and second header tanks through which refrigerant is introduced and discharged, the first and second header tanks being spaced apart from each other by a predetermined distance; a plurality of flat refrigerant tubes each having opposite ends respectively connected to the first and second header tanks, each of the refrigerant tubes having channels spaced apart from one another in a widthwise direction through which the refrigerant scatter and flow, the channels having a different capacity from each other, the first and second header tanks communicating with each other through the channels; and cooling means disposed between the refrigerant tubes, for radiating heat of the refrigerant flowing along the tubes, wherein widths of the channels are different from each other and heights of the channels are the same as each other. 2. The heat exchanger according to claim 1, wherein each of the refrigerant tubes comprises a refrigerant flow hole of a multi-channel structure having at least two different channel capacities to allow the refrigerant to scatter and flow. 3. The heat exchanger according to claim 1, wherein intervals between the channels are different from each other. 4. The heat exchanger according to claim 1, wherein among the channels, a first channel formed on a front end of each of the refrigerant tubes, has a biggest channel capacity, and an n-th channel formed on a rear end of each of the flat tubes has a smallest channel capacity, when the order of the first and the n-th is referenced by the air flow direction. 5. The heat exchanger according to claim 1, wherein the channel capacities of the refrigerant tubes are gradually decreased at a predetermined rate as it goes from a first channel formed on a front end of the refrigerant tube to an n-th channel formed on a rear end of the refrigerant tube. 6. The heat exchanger according to claim 5, wherein adjacent channels of each of the refrigerant tubes have a difference in their capacities by a predetermined reduction/increase rate. 7. The heat exchanger according to claim 1, wherein the channels are classified into the predetermined number of groups, and capacities of the grouped channels are different from each other. 8. The heat exchanger according to claim 1, wherein widths of the channels are gradually reduced at a predetermined rate as it goes from a first channel formed on a front end of the refrigerant tube to an n-th channel formed on a rear end of the refrigerant tube. 9. The heat exchanger according to claim 8, wherein the channel widths of the adjacent front and rear channels are reduced at a reduction rate of 6%. 10. The heat exchanger according to claim 8, wherein the channel widths of the adjacent front and rear channels are reduced at a reduction rate of 10%. 11. The heat exchanger according to claim 1, wherein an inner circumference of the tubes comprises an irregular surface having a plurality of irregular grooves formed in the inner circumference. 12. The heat exchanger according to claim 1, wherein the cooling means comprises cooling fins vertically disposed between the flat tubes, and riblets formed in air flow direction on an outer surface where the cooling fins are not formed. 13. A heat exchanger comprising: first and second header tanks through which refrigerant is introduced and discharged, the first and second header tanks being arranged facing each other spaced apart from each other by a predetermined distance and having at least one separation membrane; a plurality of flat refrigerant tubes each having opposite ends respectively connected between the first and second header tanks, each of the flat tubes being provided with multi-channels spaced apart from one another in a widthwise direction and having different channel widths in an exterior air flow direction and having same channel heights, and communicating the first and second header tanks with each other to disperse and flow the refrigerant; and heat discharging means including: a plurality of cooling fins disposed in a predetermined shape between the refrigerant tubes; and riblets protruded in the air flow direction on an outer surfaces of the refrigerant tubes. 14. The heat exchanger according to claim 13, wherein the riblets are shaped in a triangle. 15. The heat exchanger according to claim 13, wherein each of the tubes has an inner circumference comprising an irregular surface having a plurality of irregular grooves formed in the inner circumference. 16. A heat exchanger comprising: first and second header tanks through which refrigerant is introduced and discharged, the first and second header tanks being arranged spaced apart from each other by a predetermined distance; a plurality of flat refrigerant tubes arranged spaced apart from one another by a predetermined distance and connected between the first and second header tanks, for dispersing and flowing refrigerant, each of the refrigerant tubes having a multi-channel structure including channels spaced apart from each other in a widthwise direction and in which a first channel, which is formed on a front end of each tube and first contacts air, has a biggest channel capacity, and an n-th channel, which is formed on a rear end of each tube, has a smallest channel capacity; and cooling fins disposed between the refrigerant tubes for heat discharge, wherein widths of the channels are different from each other and heights of the channels are the same as each other. 17. A heat exchanger comprising: a plurality of flat refrigerant tubes each having multi-channels including channels spaced apart from each other in a widthwise direction and of which widths are gradually reduced by a predetermined reduction ratio as it goes in a direction where exterior air flows and of which heights are the same, the refrigerant tubes flowing refrigerant between a pair of header tanks through the multi-channels; and cooling fins disposed between the refrigerant tubes for heat discharge. 18. The heat exchanger according to claim 16, wherein the tubes have an inner circumference comprising an irregular surface having a plurality of irregular grooves formed in the inner circumference. 19. The heat exchanger according to claim 17, wherein the tubes have an inner circumference comprising an irregular surface having a plurality of irregular grooves formed in the inner circumference.

이 특허에 인용된 특허 (6)

이 특허를 인용한 특허 피인용횟수: 7

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특허 상세정보

Heat exchanger with flat tubes

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이 특허에 인용된 특허 (6)

이 특허를 인용한 특허 피인용횟수: 7

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IPC 상세정보(version : 201201)

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Heat exchanger with flat tubes

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이 특허에 인용된 특허 (6)

이 특허를 인용한 특허 피인용횟수: 7

IPC 상위 출원인

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IPC 상세정보(version : 201201)

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