IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0989229
(2006-07-28)
|
등록번호 |
US-8291724
(2012-10-23)
|
우선권정보 |
JP-2005-220783 (2005-07-29) |
국제출원번호 |
PCT/JP2006/315049
(2006-07-28)
|
§371/§102 date |
20080129
(20080129)
|
국제공개번호 |
WO2007/013623
(2007-02-01)
|
발명자
/ 주소 |
- Shikazono, Naoki
- Kasagi, Nobuhide
- Suzuki, Yuji
- Suzue, Yoshinori
- Morimoto, Kenichi
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
0 인용 특허 :
1 |
초록
▼
A heat exchanger has multiple laminated fins 30. Each fin 30 has multiple tops 34 and multiple bottoms 36 arranged to have a preset acute angle γ (for example, 30 degrees) to an air flow line at an air inlet and to make an air flow in a cavity region behind each of multiple heat transfer tubes 22a t
A heat exchanger has multiple laminated fins 30. Each fin 30 has multiple tops 34 and multiple bottoms 36 arranged to have a preset acute angle γ (for example, 30 degrees) to an air flow line at an air inlet and to make an air flow in a cavity region behind each of multiple heat transfer tubes 22a to 22c in an air flow direction at an air outlet. This design of the fins 30 produces effective secondary flows of the air to improve the heat transfer efficiency and makes an additional contribution to heat exchange, due to the air flow in the cavity region behind each of the heat transfer tubes 22a to 22c in the air flow direction. This arrangement effectively prevents separation of the air flow and a local speed increase of the air flow, while improving the overall heat exchange efficiency by production of the effective secondary flows of the air.
대표청구항
▼
1. A heat exchanger for heat exchange between the air and a heat exchange medium, the heat exchanger comprising: multiple heat transfer tubes arranged in parallel to each other as flow paths of the heat exchange medium; andmultiple corrugated fin members configured to have wave forms and provide an
1. A heat exchanger for heat exchange between the air and a heat exchange medium, the heat exchanger comprising: multiple heat transfer tubes arranged in parallel to each other as flow paths of the heat exchange medium; andmultiple corrugated fin members configured to have wave forms and provide an air inlet for inflow of the air, an air outlet for outflow of the air, and an air flow path connecting the air inlet with the air outlet and making heat exchange with the multiple heat transfer tubes,wherein:the multiple fin members are arranged to have a preset acute angle formed by each wave form and a first air flow line in at least the air inlet, andthe multiple fin members have wave forms such that: a top-connecting line that connects tops of each wave form is bent multiple times between an immediate adjacent set of the multiple heat transfer tubes where a line connecting the immediate adjacent heat transfer tubes is perpendicular to a direction of the air inlet, andmultiple curves are consistent with a second airflow line between the adjacent set of the multiple heat transfer tubes, the second airflow line existing between the fin members at the air inlet side, wherein each curve interconnects one of bent points of the top-connecting line of each wave form and one of bent points of a bottom-connecting line that interconnects bottoms of a wave form where the one of bent points of the bottom-connecting line is immediate adjacent to the one of bent points of the top-connecting line. 2. The heat exchanger in accordance with claim 1, wherein the multiple fin members are arranged to make each wave form symmetrical about a center of each adjacent set of the multiple heat transfer tubes. 3. The heat exchanger in accordance with claim 1, wherein the multiple fin members are arranged to have the wave forms such that the air flows in a cavity region behind each of the multiple heat transfer tubes in an air flow direction. 4. The heat exchanger in accordance with claim 1, wherein the multiple fin members are arranged to have the wave forms such that a curve of interconnecting bent points of the top-connecting lines of adjacent wave forms is consistent with the second air flow line in the predetermined range. 5. The heat exchanger in accordance with claim 1, wherein the multiple fin members are designed to give a Reynolds number of not less than 10, which is defined by an air flow rate ‘u’ and an amplitude ‘h’ of the wave form. 6. The heat exchanger in accordance with claim 1, wherein the preset acute angle is in a range of 10 degrees to 60 degrees. 7. The heat exchanger in accordance with claim 1, wherein each of the multiple heat transfer tubes has either a substantially circular cross section or a substantially rectangular cross section. 8. The heat exchanger in accordance with claim 1, wherein the multiple fin members provide the air flow path connecting the air inlet with the air outlet and intersecting with the multiple heat transfer tubes in a heat exchangeable manner. 9. The heat exchanger in accordance with claim 1, wherein the multiple heat transfer tubes provide, in combination with the multiple fin members, at least one of the air inlet and the air outlet. 10. An air conditioning device configured as a refrigeration cycle with application of a heat exchanger to at least one of an evaporator and a condenser, the heat exchanger for heat exchange between the air and a heat exchange medium, the heat exchanger comprising: multiple heat transfer tubes arranged in parallel to each other as flow paths of the heat exchange medium; andmultiple corrugated fin members configured to have wave forms and provide an air inlet for inflow of the air, an air outlet for outflow of the air, and an air flow path connecting the air inlet with the air outlet and making heat exchange with the multiple heat transfer tubes,wherein:the multiple fin members are arranged to have a preset acute angle formed by each wave form and a first air flow line in at least the air inlet, andthe multiple fin members have the wave forms such that: a top-connecting line that connects tops of each wave form is bent multiple times between an immediate adjacent set of the multiple heat transfer tubes where a line connecting the immediate adjacent heat transfer tubes is perpendicular to a direction of the air inlet, andmultiple curves are consistent with a second airflow line between the adjacent set of the multiple heat transfer tubes, the second airflow line existing between the fin members at the air inlet side, wherein each curve interconnects one of bent points of the top-connecting line of each wave form and one of bent points of a bottom-connecting line that interconnects bottoms of a wave form where the one of bent points of the bottom-connecting line is immediate adjacent to the one of bent points of the top-connecting line. 11. An air property converter that changes a property of an inflow air and flows out the air of the changed property, the air property converter comprising: multiple corrugated fin members configured to have wave forms and provide an air inlet for inflow of the air, an air outlet for outflow of the air, and an air flow path connecting the air inlet with the air outlet,wherein:the multiple fin members are arranged to have a preset acute angle formed by each wave form and a main stream of a first air flow in at least the air inlet, andthe multiple fin members have the wave forms such that: a top-connecting line that connects tops of each wave form is bent multiple times between an immediate adjacent set of the multiple heat transfer tubes where a line connecting the immediate adjacent heat transfer tubes is perpendicular to a direction of the air inlet, andmultiple curves are consistent with a second airflow line between the adjacent set of the multiple heat transfer tubes, the second airflow line existing between the fin members at the air inlet side, wherein each curve interconnects one of bent points of the top-connecting line of each wave form and one of bent points of a bottom-connecting line that interconnects bottoms of a wave form where the one of bent points of the bottom-connecting line is immediate adjacent to the one of bent points of the top-connecting line.
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