In a condenser of a refrigerant cycle, a throttle portion is provided at a predetermined position in one of first and second header tanks to decompress refrigerant while refrigerant meanderingly flows within the one of the first and second header tanks. Therefore, refrigerant from the throttle porti
In a condenser of a refrigerant cycle, a throttle portion is provided at a predetermined position in one of first and second header tanks to decompress refrigerant while refrigerant meanderingly flows within the one of the first and second header tanks. Therefore, refrigerant from the throttle portion is sufficiently mixed with refrigerant directly flowing from tubes into a downstream space of the throttle portion in the one of the first and second header tanks. Accordingly, even when gas refrigerant is directly introduced from a part of the tubes directly into the lower downstream space, the gas refrigerant can be effectively heat-exchanged with the refrigerant flowing from the throttle portion. As a result, it can restrict refrigerant from being discharged from the condenser in a gas-liquid two-phase state.
대표청구항▼
What is claimed is: 1. A heat exchanger for a refrigerant cycle, comprising: a plurality of tubes in which refrigerant flows in a tube longitudinal direction; a first header tank extending in a direction perpendicular to the tube longitudinal direction to communicate with the tubes at one end side
What is claimed is: 1. A heat exchanger for a refrigerant cycle, comprising: a plurality of tubes in which refrigerant flows in a tube longitudinal direction; a first header tank extending in a direction perpendicular to the tube longitudinal direction to communicate with the tubes at one end side of each tube in the tube longitudinal direction; a second header tank extending in a direction perpendicular to the longitudinal direction of the tubes to communicate with the tubes at the other end side of each tube in the tube longitudinal direction; and a throttle portion for decompressing refrigerant, the throttle portion being provided at a predetermined position of one of the first and second header tanks, wherein: the tubes have outlet openings from which the refrigerant flows out, opened into the one of the first and second header tanks; the throttle portion is located between adjacent outlet openings of the tubes; and the tubes include a first group of tubes having the outlet openings located upstream from the throttle portion and a second group of tubes having the outlet openings located downstream from the throttle portion, the throttle portion has an outlet provided by a hole portion formed on the one of the header tanks at a side opposite to the outlet openings of the second group of tubes. 2. The heat exchanger according to claim 1, wherein: the first header tank has a refrigerant inlet from which refrigerant is introduced from an exterior; and the throttle portion is provided in the second header tank. 3. The heat exchanger according to claim 1, wherein: the throttle portion is provided in the second header tank to turn once a flow of the refrigerant flowing in the second header tank to an outside more than an inner surface and further turn the turned flow of the refrigerant to an inside of the second header tank. 4. The heat exchanger according to claim 1, wherein: the first and second header tanks are arranged to extend in a vertical direction; the throttle portion is provided In the second header tank at a position higher than a bottom end of the second header tank by a predetermined dimension; and the predetermined dimension is in a range of 1/20-⅓ of a height dimension of the second header tank. 5. The heat exchanger according to claim 4, wherein: the first header tank has a refrigerant inlet, at a top end side, from which refrigerant is introduced from an exterior; the second header tank has a refrigerant outlet at a bottom end side of the second header tank; and the first header tank and the second header tank are connected to the tubes such that refrigerant introduced into the first header tank passes through all the tubes and is introduced into the second header tank. 6. The heat exchanger according to claim 1, wherein: the first header tank has a refrigerant inlet from which refrigerant is introduced from an exterior, at one longitudinal end side of the first header tank; the second header tank has a refrigerant outlet from which refrigerant is discharged, at one longitudinal end side of the second header tank; the throttle portion is provided in the second header tank; and each of the first and second header tanks defines therein a single communication apace. 7. The heat exchanger according to claim 1, further comprising a partition plate, disposed in at least one of the first header tank and the second header tank, for partitioning an inner space into plural space parts. 8. The heat exchanger according to claim 1, wherein the first and second header tanks are integrated with a super-cooling device of the refrigerant cycle, for increasing a super-cooling degree of the refrigerant. 9. The heat exchanger according to claim 1, wherein the throttle portion is provided in the second header tank such that refrigerant flows from the throttle portion to a downstream space of the throttle portion in the second header tank mainly in a direction crossing with the longitudinal direction of the second header tank. 10. A heat exchanger for a refrigerant cycle, comprising: a plurality of tubes in which refrigerant flows in a tube longitudinal direction; a first header tank extending in a direction perpendicular to the tube longitudinal direction to communicate with the tubes at one end side of each tube in the tube longitudinal direction; a second header tank extending in a direction perpendicular to the longitudinal direction of the tubes to communicate with the tubes at the other end side of each tube in the tube longitudinal direction; and a throttle portion for decompressing refrigerant, the throttle portion being provided at a predetermined position of one of the first and second header tanks to meanderingly flow the refrigerant within the one of the first and second header tanks in a refrigerant flow of a longitudinal direction of the first and second header tanks; wherein the second header tank includes a tank portion that is connected to the tubes and has a hole portion at a side opposite to the tubes; the throttle portion is arranged at a position where the hole portion is provided; and the throttle portion is constructed with at least a turning plate having a flat surface crossing with the longitudinal direction of the second header tank, and a cover member for closing the hole portion. 11. The heat exchanger according to claim 10, wherein the turning plate is disposed in the second header tank to continuously extend from an inner surface of a wall portion of the second header tank, connected to the tubes, to at least an Inner surface of a wall portion of the second header tank having the hole portion. 12. The heat exchanger according to claim 10, wherein the turning plate is disposed in the second header tank to continuously extend from an inner surface of a wall portion of the second header tank, connected to the tubes, to a position around an inner surface of a wall portion of the second header tank having the hole portion. 13. The heat exchanger according to claim 10, wherein: the second header tank is integrated with a receiver of the refrigerant cycle, for separating refrigerant from the heat exchanger into gas refrigerant and liquid refrigerant; and a part of the receiver is used as the cover member. 14. The heat exchanger according to claim 10, wherein the cover member is connected to the hole portion of the second header tank through a connection member that is arranged between the second header tank and the cover member. 15. A receiver-integrated condensation device for a refrigerant cycle, comprising: a condenser for cooling refrigerant, the condenser including a plurality of tubes in which refrigerant flows in a tubs longitudinal direction, and first end second header tanks disposed at two end sides of each tube to extend in a direction perpendicular to the tube longitudinal direction and to communicate with the tubes; a receiver for separating refrigerant from the second header tank into gas refrigerant and liquid refrigerant, the receiver being integrated with the second header tank; and a turning plate disposed in the second header tank at a predetermined position to extend in a direction crossing with a longitudinal direction of the second header tank from a first wall surface of the second header tank connected to the tubes toward a second wall surface of the second header tank adjacent to the receiver, wherein: the second wall surface of the second header tank has a hole portion at a position around the turning plate; and the receiver is disposed to cover the hole portion. 16. The receiver-integrated condensation device according to claim 15, wherein the receiver is directly connected to the second header tank to seal the hole portion. 17. The receiver-integrated condensation device according to claim 15, wherein: the receiver is connected to the second header tank through a connection member having an opening that communicates with the hole portion of the second header tank; and the receiver is disposed to seal the opening of the connection member. 18. The receiver-integrated condensation device according to claim 15, wherein the turning plate extends in a direction approximately perpendicular to the longitudinal direction of the second header tank, from the first wall surface to at least the second wall surface. 19. The receiver-integrated condensation device according to claim 15, wherein the turning plate extends in a direction approximately perpendicular to the longitudinal direction of the second header tank, from the first wall surface to a position around the second wall surface.
연구과제 타임라인
LOADING...
LOADING...
LOADING...
LOADING...
LOADING...
이 특허에 인용된 특허 (4)
Watanabe Hirohiko,JPX ; Hoshino Ryoichi,JPX ; Takahashi Yasuhiro,JPX, Condenser and air conditioning refrigeration system and using same.
※ AI-Helper는 부적절한 답변을 할 수 있습니다.