JP2018013322A - Condenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a condenser uniformizing a flow rate of a refrigerant flowing in a total heat exchange pipe of a heat exchange path for refrigerant condensation, and achieving downsizing.SOLUTION: An inlet member 16 having a refrigerant inflow passage 17 having opened both ends is connected to a condensation part inlet header 12 of a condenser. One end opening of the refrigerant inflow passage 17 of the inlet member 16 becomes an inflow port 27 from the outside, and the other end opening becomes an outflow port 28 into the condensation part inlet header 12. An opening 23 is formed in a part closer to one end side than a longitudinal direction center part in the peripheral wall of the condensation part inlet header 12, and an insertion part 24 inserted into the condensation part inlet header 12 through the opening 23 is provided in the inlet member 16. A gap 29 exists between the insertion part 24 and part of the peripheral wall of the condensation part inlet header 12. The outflow port 28 of the refrigerant inflow passage 17 is opened to one upward plain face 26 of the insertion part 24, and a refrigerant is made to outflow to the longitudinal direction center part side of the condensation part inlet header 12.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a capacitor suitably used for, for example, a car air conditioner mounted on an automobile.

  In this specification and claims, the top, bottom, left and right refer to the top, bottom, left and right of FIGS. 1, 11, 15, and 17, and the front and back directions of FIG. 1, FIG. 11, FIG. Ventilation direction.

  For example, as a condenser of a car air conditioner, at least one heat exchange path composed of a plurality of heat exchange tubes arranged in parallel in the vertical direction with the longitudinal direction oriented in the left-right direction and the longitudinal direction oriented in the vertical direction And a condenser inlet header that communicates with the upstream end of the refrigerant flow direction of the heat exchange path on the uppermost stream side in the refrigerant flow direction, and the longitudinal direction of the heat exchanger path that extends in the up and down direction. A condenser having a condenser outlet header through which the downstream end in the refrigerant flow direction of the heat exchange path communicates and the refrigerant flowing through the total heat exchange path of the condenser flows in. An inlet member that has an open refrigerant inflow path and that allows the refrigerant to flow into the condenser inlet header is joined, and the condenser outlet header has a refrigerant outlet path that is open at both ends and within the condenser outlet header. A capacitor to the outlet member for discharging the Luo refrigerant is bonded widely known (hereinafter, referred to as well-known capacitor).

  In order to improve the heat exchange efficiency in the above-mentioned known condenser, the height position of the inflow portion where the refrigerant flows into the condenser inlet header and the height position of the outflow portion where the refrigerant flows out of the condenser outlet header are adjusted. It is effective to make the flow rate of the refrigerant flowing through the total heat exchange pipe constituting the heat exchange path leading to the condenser inlet header uniform.

  By the way, in the case of a car air conditioner mounted on an automobile, the height position of the refrigerant inflow part to the condenser inlet header of the condenser may be limited in consideration of the piping of the pipe that connects the parts constituting the car air conditioner. In the known condenser described above, it may be difficult to equalize the flow rate of the refrigerant flowing through the total heat exchange pipe of the heat exchange path leading to the condenser inlet header.

  Among the condenser inlet header and the condenser outlet header, a condenser that can equalize the flow rate of refrigerant flowing through the total heat exchange pipe of the refrigerant condensation heat exchange path without adjusting the height positions of the refrigerant inflow portion and the refrigerant outflow portion. A partition member that partitions the heat exchange tube side space and the counter heat exchange tube side space is disposed inside at least one of the plurality of communication portions that allow the partition member to pass through both the spaces in the vertical direction. There has been proposed a capacitor in which the size of the communication portion is adjusted in the vertical direction (see Patent Document 1).

  However, in the capacitor described in Patent Document 1, a partition member that partitions the heat exchange pipe side space and the counter heat exchange pipe side space is disposed in at least one of the condenser inlet header and the condenser outlet header. Therefore, there is a problem that the number of parts increases, the weight increases as the number of parts increases, and the cost increases.

  In addition, as a capacitor that can equalize the flow rate of refrigerant flowing through the total heat exchange pipe of the refrigerant condensation heat exchange path, while suppressing an increase in the number of parts and cost increase, the applicant of the present invention, It has a supercooling part provided below the condensing part, and a liquid receiving part provided between the condensing part and the supercooling part. The condensing part turns the longitudinal direction in the left-right direction and vertically At least one heat exchange path comprising heat exchange tubes arranged in parallel at intervals, a condenser inlet header through which the upstream end of the refrigerant flow direction upstream side of the heat exchange path on the most upstream side in the refrigerant flow direction, and refrigerant A cooling section outlet header through which a refrigerant flow direction downstream end of the heat exchange path on the most downstream side in the flow direction and a refrigerant flowing through the total heat exchange path of the condensing section flows in, and a center in the longitudinal direction of the condensing section inlet header The refrigerant flows in the part that is biased to one end An inlet is formed, and an inlet member that has a refrigerant inflow passage that is open at both ends and that allows the refrigerant to flow into the condenser inlet header through the refrigerant inflow passage is joined to the condenser inlet header. At least one supercooling heat exchange path composed of a plurality of heat exchange tubes arranged in parallel in the left-right direction and at intervals in the up-down direction, and the refrigerant flow arranged in the longitudinal direction up and down A supercooling portion inlet header that communicates with the upstream end of the refrigerant flow direction of the supercooling heat exchange path on the most upstream side of the direction, and a supercooling portion that is disposed with the longitudinal direction directed vertically up and down and that is downstream of the refrigerant flow direction A supercooling section outlet header that communicates with the downstream end of the heat exchange path in the refrigerant flow direction, the supercooling section outlet header having a refrigerant outflow path that is open at both ends, and through the refrigerant outflow path. From refrigerant The outlet member to be discharged is joined, the liquid receiving part is communicated with the condensing part outlet header and the supercooling part inlet header, and the refrigerant flowing out from the condensing part outlet header passes through the liquid receiving part in the supercooling part inlet header. The inlet member has a close contact portion that is in close contact with a predetermined range including the refrigerant inlet on the outer peripheral surface of the peripheral wall of the condenser inlet header, and the entire refrigerant inlet passage of the inlet member is One end opening of the refrigerant inflow path of the inlet member is an external inlet, and the other end opening is an outlet into the condenser inlet header, and the outlet is the refrigerant of the condenser inlet header. An opening is formed in the contact portion so as to match the inflow port, and a straight portion is provided in a fixed length portion on the outflow port side in the refrigerant inflow path of the inlet member, and the straight line portion is provided from the inflow port side. Condensation on the outlet side The condenser which inclines in the longitudinal direction center part side of a part entrance header and the heat exchange pipe | tube side was proposed (refer patent document 2).

  However, in the capacitor described in Patent Document 2, since the entire refrigerant inflow path of the inlet member exists outside the condenser inlet header, the inlet member becomes relatively large, and as a result, the capacitor increases in size and layout characteristics. Is insufficient.

JP 2004-353936 A JP2015-92120A

  SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problem and to make the flow rate of the refrigerant flowing through the total heat exchange pipe of the refrigerant condensation heat exchange path uniform without increasing the number of parts, and to reduce the size of the condenser Is to provide.

  In order to achieve the above object, the present invention comprises the following aspects.

1) Condenser inlet header arranged with the longitudinal direction facing up and down, and arranged in parallel with the longitudinal direction oriented in the left and right direction and spaced in the vertical direction, and one end in the longitudinal direction is arranged at the condenser inlet header A heat exchange path consisting of a plurality of heat exchange tubes connected to the condenser, and the condenser inlet header has a refrigerant inflow passage that is open at both ends, and one end from the longitudinal center in the condenser inlet header. An inlet member for allowing the refrigerant to flow is joined to the portion biased to the side, and one end opening of the refrigerant inflow passage of the inlet member serves as an inflow port from the outside, and the other end opening serves as an outflow port into the condenser inlet header. In the capacitor
An opening is formed in a portion of the peripheral wall of the condensing unit inlet header that is deviated to one end side from the central portion in the longitudinal direction, and the insertion member inserted into the condensing unit inlet header through the opening is condensed with the insertion unit. The inlet of the refrigerant is provided so that a gap exists between a part of the peripheral wall of the header of the part inlet, the outlet of the refrigerant inflow path is open to the insertion part, and the outlet of the refrigerant inflow path is the inlet of the condenser. Capacitor designed to flow out toward the center in the longitudinal direction of the header.

  2) The capacitor according to 1) above, wherein the outlet of the insertion part of the inlet member is located on one plane, and a straight line perpendicular to the plane extends in the longitudinal direction of the condenser inlet header.

  3) The outlet of the insertion part of the inlet member is located on one plane, and a straight line passing through the center of the outlet and perpendicular to the plane is from the plane in the longitudinal direction of the condenser inlet header Capacitor according to 1), wherein the capacitor is inclined in a direction passing through the center of the outlet and extending away from the straight line extending in the longitudinal direction of the condenser inlet header as it goes toward the center, and both straight lines form a certain angle. .

  4) The angle between the straight line perpendicular to one plane where the outlet of the inlet part of the inlet member is located and the straight line extending in the longitudinal direction of the condenser inlet header is 0 to 45 degrees (including 0 degrees) 3) The capacitor described in 3) above.

  5) The capacitor according to any one of the above 2) to 4), wherein a straight line perpendicular to one plane where the outlet of the inlet member is located is located on a plane perpendicular to the ventilation direction.

  6) A straight portion is provided at a constant length portion on the outlet side in the refrigerant inlet passage of the inlet member, and the straight portion extends from the inlet side to the outlet side in the longitudinal center of the condenser inlet header. The capacitor as described in 5) above, which is inclined toward the heat exchange tube side.

  7) Auxiliary refrigerant having one end opened at the inner surface of the refrigerant inflow passage at the insertion portion of the inlet member and the other end opened at a surface facing the opposite side of the central portion in the longitudinal direction of the condenser inlet header at the insertion portion 7. The capacitor according to any one of 1) to 6) above, wherein an inflow path is formed, and the size of the other end opening of the auxiliary refrigerant inflow path is smaller than the size of the outflow port.

  8) It is provided with a condensing part, a supercooling part provided below or above the condensing part, and a liquid receiving part provided between the condensing part and the supercooling part. At least one heat exchange path composed of a plurality of heat exchange tubes arranged in parallel at intervals in the vertical direction and the downstream side in the refrigerant flow direction of the heat exchange path on the most downstream side in the refrigerant flow direction A condensing part outlet header through which the refrigerant that has flowed through the total heat exchange path of the condensing part flows in, and an upstream end part in the refrigerant flow direction of the heat exchange path on the most upstream side in the refrigerant flow direction And the supercooling section is arranged with the supercooling section inlet header arranged with the longitudinal direction facing up and down, the supercooling section outlet header arranged with the longitudinal direction oriented up and down, and the longitudinal direction left and right In parallel and spaced in the vertical direction And at least one supercooling heat exchange path composed of a plurality of heat exchange tubes placed on the upstream side end in the refrigerant flow direction of the supercooling heat exchange path on the most upstream side in the refrigerant flow direction on the supercooling section inlet header And the downstream end of the subcooling heat exchange path on the most downstream side in the refrigerant flow direction is communicated to the subcooling section outlet header, and the liquid receiving section is connected to the condensing section outlet header and the supercooling section. The refrigerant which is communicated with the inlet header and flows out of the outlet of the condensing part flows into the supercooling part inlet header through the liquid receiving part, according to any one of the above 1) to 7) Capacitor.

  9) The condenser according to 8) above, wherein one heat exchange path is provided in the condensing unit, and all heat exchange tubes of the heat exchanging path are connected to the condensing unit inlet header and the condensing unit outlet header.

  10) A first header tank whose longitudinal direction is directed vertically is arranged on one end side of the heat exchange pipe, and a second header tank and a third header tank whose longitudinal direction is oriented vertically on the other end side, The third header tank is provided so as to be located on the outer side in the left-right direction with respect to the second header tank, and the first header tank is provided with the condenser inlet header and the supercooling outlet outlet header on the upper side, A condensing unit outlet header is provided in the entire second header tank, and a total heat exchange pipe of a heat exchanging path of the condensing unit is connected to the condensing unit outlet header. The lower end of the third header tank is lower than the lower end of the second header tank. A supercooling portion is located at a lower portion of the third header tank, the upper end of the third header tank being located above the lower end of the second header tank. The opening header is provided, and the inside of the condensing part outlet header of the second header tank and the part located above the lower end of the second header tank in the third header tank are communicated via the communication part. 9) Capacitor described.

  According to the condensers 1) to 10) above, an opening is formed in a portion of the peripheral wall of the condenser inlet header that is biased to one end side relative to the central portion in the longitudinal direction, and the inlet member passes through the opening into the condenser inlet header. The inserted insertion portion is provided such that a gap exists between the insertion portion and a part of the peripheral wall of the condenser inlet header, and the outlet of the refrigerant inflow passage is open to the insertion portion. Since the outlet of the inflow passage flows out the refrigerant toward the central portion in the longitudinal direction of the condenser inlet header, the refrigerant flowing into the condenser inlet header through the refrigerant inlet passage of the inlet member In addition, it can flow to the center side in the longitudinal direction in the condenser inlet header, and can flow to the side opposite to the central part in the longitudinal direction through the gap between the insertion portion and the peripheral wall of the condenser inlet header. Therefore, the refrigerant flowing into the condensing unit inlet header through the refrigerant inflow passage of the inlet member can be spread over the entire length in the condensing unit inlet header. As a result, the refrigerant that has flowed into the condenser inlet header through the refrigerant inlet passage of the inlet member can be evenly divided into the total heat exchange pipe connected to the condenser inlet header, preventing deterioration of the condenser performance. It becomes possible to do. In addition, it is possible to prevent an increase in the number of parts and an increase in weight and cost associated with an increase in the number of parts.

  Further, the inlet member is provided with an insertion portion inserted into the condenser inlet header through the opening, and the outlet of the refrigerant inflow passage is open to the insertion portion. It is possible to reduce the size of the portion existing in the capacitor, and thus to reduce the size of the capacitor, thereby improving the layout of the capacitor.

  According to the capacitors 2) to 6), it is possible to efficiently flow the refrigerant flowing into the condenser inlet header through the refrigerant inlet passage of the inlet member toward the central portion in the longitudinal direction in the condenser inlet header. become. Therefore, the refrigerant flowing into the condensing unit inlet header through the refrigerant inflow path of the inlet member can be effectively spread over the entire length in the condensing unit inlet header.

  According to the condenser of the above 7), a part of the refrigerant passing through the refrigerant inflow passage of the inlet member can be passed through the auxiliary refrigerant inflow passage to the side opposite to the longitudinal central portion in the condenser inlet header. . Therefore, due to the specifications of the condenser inlet header and the heat exchange pipe, the refrigerant that has flowed into the condenser inlet header from the outlet through the refrigerant inlet passage of the inlet member, and the peripheral wall of the condenser inlet header Even when it is difficult for the refrigerant to flow to the opposite side of the central portion in the longitudinal direction through the gap therebetween, the refrigerant can be spread throughout the longitudinal direction in the condensing unit inlet header. As a result, the refrigerant that has flowed into the condenser inlet header through the refrigerant inlet passage of the inlet member can be evenly divided into the total heat exchange pipe connected to the condenser inlet header, preventing deterioration of the condenser performance. It becomes possible to do.

  In addition, since the size of the other end opening in the auxiliary refrigerant inflow path is smaller than the size of the outlet, the effect of causing the refrigerant to flow out toward the central portion in the longitudinal direction of the condenser inlet header by the outlet. There is no hindrance.

1 is a front view specifically showing the overall configuration of a first embodiment of a capacitor according to the present invention; FIG. 2 is a front view schematically showing the capacitor of FIG. 1. It is an AA line expanded sectional view of FIG. FIG. 4 is a sectional view taken along line BB in FIG. 3. It is a disassembled perspective view which shows a part of condensing part inlet header and inlet member of the capacitor | condenser of FIG. FIG. 5 is a view corresponding to FIG. 4 showing a first modification of the inlet member used in the capacitor of FIG. 1. FIG. 5 is a view corresponding to FIG. 4 showing a second modification of the inlet member used in the capacitor of FIG. 1. FIG. 5 is a view corresponding to FIG. 4 and showing a third modification of the inlet member used in the capacitor of FIG. 1. FIG. 10 is a view corresponding to FIG. 4 and showing a fourth modification of the inlet member used in the capacitor of FIG. 1. FIG. 10 is a view corresponding to FIG. 4 showing a fifth modification of the inlet member used in the capacitor of FIG. 1. It is a front view which shows concretely the whole structure of 2nd Embodiment of the capacitor | condenser by this invention. FIG. 12 is a front view schematically showing the capacitor of FIG. 11. FIG. 12 is a view corresponding to FIG. 4 illustrating a main part of the capacitor of FIG. 11. FIG. 14 is a view corresponding to FIG. 13 showing a modification of the inlet member used in the capacitor of FIG. 11. It is a front view which shows concretely the whole structure of 3rd Embodiment of the capacitor | condenser by this invention. FIG. 16 is a front view schematically showing the capacitor of FIG. 15. It is a front view which shows concretely the whole structure of 4th Embodiment of the capacitor | condenser by this invention. FIG. 18 is a front view schematically showing the capacitor of FIG. 17.

  Embodiments of the present invention will be described below with reference to the drawings.

  In the following description, the term “aluminum” includes aluminum alloys in addition to pure aluminum.

  Further, the same parts and the same parts are denoted by the same reference symbols throughout the drawings.

  FIG. 1 specifically shows the overall configuration of the first embodiment of the capacitor according to the present invention, FIG. 2 schematically shows the capacitor of FIG. 1, and FIGS. 3 to 5 show the configuration of the main part of the capacitor of FIG. Indicates. In FIG. 2, illustration of individual heat exchange tubes is omitted, and illustration of corrugated fins and side plates is also omitted.

  1 and 2, the condenser (1) is condensed with the condenser (2), the supercooling part (3) provided below the condenser (2), and the longitudinal direction thereof being directed vertically. A liquid provided between the section (2) and the supercooling section (3) and storing the liquid phase main refrigerant condensed in the condensing section (2) and supplying the liquid phase main refrigerant to the subcooling section (3). It consists of an aluminum tank receiver (4) (receiver) that has the function of a reservoir, with the width direction oriented in the ventilation direction and the longitudinal direction oriented in the left-right direction, with an interval in the vertical direction. A plurality of flat aluminum heat exchange tubes (5) arranged and spaced from each other in the left-right direction with the longitudinal direction facing up and down, and the left and right ends of the heat exchange tube (5) are connected Between the two aluminum header tanks (6) and (7) and the adjacent heat exchange pipes (5) and outside the heat exchange pipes (5) at both upper and lower ends. The aluminum corrugated fins (8) joined to the heat exchange pipe (5) with the brazing material and the corrugated fins (8) disposed on the upper and lower ends and joined to the corrugated fins (8) with the brazing material And an aluminum side plate (9). Hereinafter, joining with a brazing material is referred to as brazing.

  The condenser (2) and the supercooling section (3) of the condenser (1) are each provided with at least one heat exchange path (here, one heat exchange path ( P1) and (P2) are provided, the heat exchange path (P1) provided in the condensing part (2) serves as a refrigerant condensing path, and the heat exchange path (P2) provided in the supercooling part (3) serves as a refrigerant. It is a supercooling path. And the refrigerant | coolant flow direction of all the heat exchange pipe | tubes (5) which comprise each heat exchange path | pass (P1) (P2) is the same, and the heat exchange pipe | tube (5) of two adjacent heat exchange paths | paths The refrigerant flow direction is different. Here, the heat exchange path (P1) of the condensing part (2) is referred to as a first heat exchange path, and the heat exchange path (P2) of the supercooling part (3) is referred to as a second heat exchange path. In this embodiment, since the condensing part (2) is provided with one first heat exchange path (P1), the first heat exchanging path (P1) is the refrigerant flow direction of the condensing part (2). It is a heat exchange path on the most upstream side and at the same time a heat exchange path on the most downstream side in the refrigerant flow direction.

  Both header tanks (6) and (7) have aluminum partition members (at the same height position between the first heat exchange path (P1) and the second heat exchange path (P2)). 11) is divided into two compartments lined up and down, and the part located above the two partition members (11) in the capacitor (1) becomes the condensing part (2), and from the two partition members (11) The lower part is also the supercooling part (3). Since the first heat exchange path (P1) is provided in the condensing part (2), the section above the partition member (11) in the right header tank (6) becomes the condensing part inlet header (12). In addition, a section above the partition member (11) in the left header tank (7) is a condenser outlet header (13). In addition, since one second heat exchange path (P2) is provided in the supercooling section (3), the section below the partition member (11) in the left header tank (7) is the subcooling section inlet header ( 14) and the section below the partition member (11) in the right header tank (6) is the supercooling section outlet header (15).

  The condenser inlet header (12) has a refrigerant inflow passage (17) open at both ends at a portion of the outer peripheral surface of the peripheral wall that is biased toward one end relative to the longitudinal central portion (X), in this case, that is biased toward the lower end. In addition, an aluminum inlet member (16) for allowing the refrigerant to flow into the condenser inlet header (12) is brazed. The supercooling section outlet header (15) has a refrigerant outflow passage (19a) having both ends open at a portion of the outer peripheral surface of the peripheral wall that is biased toward the upper end side of the longitudinal central portion, and the refrigerant is supplied to the supercooling section outlet header. An aluminum outlet member (19) that flows out through the refrigerant outlet (18) formed in (15) is brazed.

  The liquid receiver (4) is made of aluminum and has a cylindrical shape with the longitudinal direction oriented vertically and closed at both upper and lower ends. The left header tank (7) (condenser outlet header (13) and supercooler It is provided separately from the inlet header (14)) and fixed to the left header tank (7). Although not shown, a filter and a desiccant for removing foreign substances from the refrigerant are placed in the liquid receiver (4). The lower part in the condenser outlet header (13) and the lower part in the receiver (4), and the upper part in the supercooler inlet header (14) and the lower part in the receiver (4) are the left header tank. (7) and the aluminum communication member (21) (22) brazed to the liquid receiver (4), and the refrigerant flowing out from the condenser outlet header (13) is passed through the liquid receiver (4 ) Through the supercooling section inlet header (14).

  As shown in FIGS. 3 to 5, a portion of the peripheral wall of the condensing portion inlet header (12) of the right header tank (6) that is biased toward the lower end side from the central portion (X) in the longitudinal direction, here, close to the lower end and condensing An opening (23) is formed at a height close to the communicating member (21) through which the outlet header (13) and the liquid receiver (4) are passed, and the inlet member (16) is condensed through the opening (23). There is a gap (29) between the insertion part (24) inserted into the part inlet header (12) and a part of the peripheral wall of the condenser part inlet header (12), and It is provided so as not to interfere with the heat exchange pipe (5) of the first heat exchange path (P1).

  The portion around the insertion portion (24) in the portion outside the condensing portion inlet header (12) of the inlet member (16) and the portion around the opening (23) in the outer peripheral surface of the peripheral wall of the condensing portion inlet header (12) A close contact portion (25) that is in close contact with the cover is provided. In the inlet member (16), the insertion portion (24) is inserted into the condensation portion inlet header (12) through the opening (23), and the close contact portion (25) is an opening in the outer peripheral surface of the peripheral wall of the condensation portion inlet header (12) ( 23) is brazed to the outer peripheral surface of the peripheral wall of the condensing unit inlet header (12) in a state of being in close contact with the surrounding portion.

  One end of the refrigerant inflow passage (17) of the inlet member (16) opens on the right side of the portion existing outside the condenser inlet header (12), and the other end is one plane (26) of the insertion portion (24). One end opening of the refrigerant inflow passage (17) serves as an inlet (27) from the outside and the other end opening serves as an outlet (28) into the condenser inlet header (12). It has become. The plane (26) where the outlet (28) of the insertion part (24) of the inlet member (16) is located is a horizontal plane, and the first straight line (L1) perpendicular to the plane (26) is the ventilation direction. The outlet (28) flows out of the refrigerant toward the center (X) in the longitudinal direction of the condenser inlet header (12), here upwards. The first straight line (L1) perpendicular to the plane (26) where the outlet (28) of the inlet member (16) is located and passing through the center of the outlet (28) is the condensing section inlet header (12). In this case, the first straight line (L1) and the second straight line (L2) passing through the center of the condenser inlet header (12) in the horizontal direction and extending in the longitudinal direction of the condenser inlet header (12) Are parallel. The refrigerant inflow passage (17) of the inlet member (16) has a straight horizontal first straight line portion (17a) extending from the right side surface to the left and into the condenser inlet header (12), and a first straight line portion ( It consists of a vertical second straight line portion (17b) that continues to the left end of 17a) and extends upward and opens in a plane (26). The inlet member (16) is integrally formed as a whole by cutting the aluminum bare material.

  The condenser (1) constitutes a refrigeration cycle together with a compressor, an expansion valve (decompressor) and an evaporator, and is mounted on a vehicle as a car air conditioner.

  In the condenser (1) having the above-described configuration, the high-temperature and high-pressure gas-phase refrigerant compressed by the compressor passes through the refrigerant inflow passage (17) of the inlet member (16) to the lower part in the condenser inlet header (12). Inflow. At this time, the refrigerant flows out from the outlet (28) of the inlet member (16) toward the upper side (longitudinal center (X) side of the condenser inlet header (12)), so that a large amount of refrigerant flows into the condenser inlet. The refrigerant flows to the upper end in the header (12), and the remaining refrigerant passes through the gap (29) between the insertion part (24) of the inlet member (16) and the peripheral wall of the condenser inlet header (12). It flows below 16). Accordingly, the refrigerant that has flowed into the condenser inlet header (12) through the refrigerant inflow passage (17) of the inlet member (16) is distributed throughout the condenser inlet header (12), and the condenser inlet header (12). Are evenly divided into the total heat exchange pipe (5) of the first heat exchange path (P1) connected to. The refrigerant that has flowed into the heat exchange pipe (5) of the first heat exchange path (P1) flows to the left in the heat exchange pipe (5) of the first heat exchange path (P1) and flows into the condenser outlet header (13 ) Flows in. The refrigerant flowing into the condenser outlet header (13) flows into the liquid receiver (4) through the communication member (21).

  The refrigerant that has flowed into the liquid receiver (4) is a gas-liquid mixed-phase refrigerant, and the liquid-phase main mixed-phase refrigerant of the gas-liquid mixed-phase refrigerant accumulates in the lower part of the liquid receiver (4) due to gravity, and the communication member ( 22) through the supercooling section inlet header (14). The refrigerant that has entered the supercooling section inlet header (14) enters the heat exchange pipe (5) of the second heat exchange path (P2) and enters the heat exchange pipe (5) of the second heat exchange path (P2). After being supercooled while flowing to the right in the flow path, it enters the supercooling section outlet header (15), flows out through the refrigerant outflow path of the refrigerant outlet (18) and outlet member (24), and expands It is sent to the evaporator through a valve.

  6 to 10 show modifications of the inlet member used in the capacitor (1) shown in FIGS.

  In the case of the inlet member (30) shown in FIG. 6, the outlet (28) of the refrigerant inflow passage (17) of the inlet member (30) is formed on an inclined upward surface composed of one flat surface (31) in the insertion portion (24). It is open. The plane (31) where the outflow port (28) of the insertion part (24) of the inlet member (30) is located is an inclined surface facing obliquely upward, and a first straight line (vertical to the plane (31) ( L1) is located on a plane perpendicular to the ventilation direction. The first straight line (L1) that passes through the center of the outlet (28) of the inlet member (30) and is perpendicular to the plane (26) where the outlet (28) is located is formed from the plane (31) to the condenser inlet. The direction away from the second straight line (L2) extending through the center of the outlet (28) and extending in the longitudinal direction of the condenser inlet header (12) as it goes toward the longitudinal center (upper side) of the header (12), Is inclined toward the heat exchange pipe (5) and forms a certain angle with respect to a straight line (L2) extending in the longitudinal direction of the condenser inlet header (12). The angle α formed by both straight lines (L1) and (L2) is larger than 0 degree and not larger than 45 degrees, for example, 30 degrees.

  The refrigerant inflow path (17) of the inlet member (30) includes a horizontal first straight line portion (17a) extending from the right side surface to the left and entering the condenser inlet header (12), and a first straight line portion (17a). The second straight portion (17c) having a slanted shape extending obliquely upward and extending to the flat surface (31). The inlet member (30) is integrally formed as a whole by cutting the aluminum core material.

  In the case of the inlet member (35) shown in FIG. 7, the outlet (28) of the refrigerant inflow passage (17) of the inlet member (35) opens to the upper surface formed by one plane (36) in the insertion portion (24). ing. The plane (36) where the outlet (28) of the inlet member (35) is located is a horizontal plane, and the first straight line (L1) perpendicular to the plane (36) is located on a plane orthogonal to the ventilation direction. The outflow port (28) allows the refrigerant to flow out toward the center in the longitudinal direction of the condensing unit inlet header (12), here upward. The first straight line (L1) perpendicular to the plane (36) where the outlet (28) of the inlet member (35) is located and passing through the center of the outlet (28) is the condenser inlet header (12). In this case, the first straight line (L1) and the second straight line (L2) passing through the center of the condenser inlet header (12) in the horizontal direction and extending in the longitudinal direction of the condenser inlet header (12) Are parallel. The refrigerant inflow passage (17) of the inlet member (35) has a straight horizontal first straight line portion (17a) extending from the right side surface to the left and entering the condenser inlet header (12), and a first straight line portion ( 17a) is formed of an inclined second straight line portion (17d) that extends obliquely upward and is open to a flat surface (36). The second straight portion (17d) extends from the inlet (27) side to the outlet (28) side, at the center (X) side in the longitudinal direction of the condenser inlet header (12) and on the heat exchange pipe (5) side ( Inclined to the left. The insertion part (24) does not interfere with the heat exchange pipe (5) of the first heat exchange path (P1), and there is a gap between the insertion part (24) and the peripheral wall of the condenser inlet header (12). (29) exists. The entire inlet member (35) is integrally formed by cutting an aluminum bare material.

  In the case of the inlet member (70) shown in FIG. 8, one end of the insertion member (24) opens in the bottom surface of the second straight portion (17b) of the refrigerant inflow passage (17), and the other end of the insertion member (24). A vertical auxiliary refrigerant inflow passage (71) is formed in the horizontal lower surface of the condenser inlet header (12) facing the opposite side of the central portion in the longitudinal direction. The cross-sectional area of the auxiliary refrigerant inflow passage (71) is the same over the entire length and is smaller than the cross-sectional area of the second straight portion (17b) of the refrigerant inflow passage (17). ) Is smaller than the outlet (28). The entire inlet member (70) is integrally formed by cutting the aluminum bear material.

  The other configuration is the same as that of the inlet member (16) shown in FIG.

  In the condenser (1) having the inlet member (70), the refrigerant passing through the refrigerant inflow path (17) of the inlet member (70) flows upward from the outlet (28) of the inlet member (70). At the same time, it flows out below the inlet member (70) in the condenser inlet header (12) through the auxiliary refrigerant inflow passage (71). Therefore, due to the specifications of the condenser inlet header (12) and the heat exchange pipe (5), the outlet (28) of the insertion part (24) of the inlet member (70) enters the condenser inlet header (12). Even if the refrigerant that has flowed is less likely to flow downward than the inlet member (70) through the gap (29) between the insertion portion (24) and the peripheral wall of the condenser inlet header (12). , The refrigerant can be spread over the entire length in the condenser inlet header (12), and the total heat exchange pipe of the first heat exchange path (P1) connected to the condenser inlet header (12). Divided equally into (5).

  In the case of the inlet member (75) shown in FIG. 9, one end of the inlet member (24) is on the bottom surface of the connecting portion between the first straight portion (17a) and the second straight portion (17c) in the refrigerant inflow passage (17). A vertical auxiliary refrigerant inflow passage (76) is formed which opens and has the other end opened on a horizontal lower surface facing the side opposite to the longitudinal center of the condenser inlet header (12) in the insertion portion (24). Has been. The passage cross-sectional area of the auxiliary refrigerant inflow passage (76) is the same over the entire length and is smaller than the passage cross-sectional area of the second straight portion (17c) of the refrigerant inflow passage (17). ) Is smaller than the outlet (28). The entire inlet member (75) is integrally formed by cutting the aluminum bare material.

  Other configurations are the same as those of the inlet member (30) shown in FIG.

  In the case of the inlet member (80) shown in FIG. 10, one end of the insertion member (24) opens at the bottom surface of the longitudinal intermediate portion of the second straight portion (17d) of the refrigerant inflow passage (17), and the other end A vertical auxiliary refrigerant inflow passage (81) opened in a horizontal lower surface facing the opposite side of the center portion in the longitudinal direction of the condenser inlet header (12) in the insertion portion (24) is formed. The passage cross-sectional area of the auxiliary refrigerant inflow passage (81) is the same over the entire length and is smaller than the passage cross-sectional area of the second straight portion (17d) of the refrigerant inflow passage (17). ) Is smaller than the outlet (28). The entire inlet member (80) is integrally formed by cutting an aluminum bear material.

  The other structure is the same as the inlet member (35) shown in FIG.

  Also in the condenser (1) having the inlet members (75) and (80) shown in FIGS. 9 and 10, the refrigerant passing through the refrigerant inflow passage (17) of the inlet members (75) and (80) is the inlet member (75) ( At the same time as flowing out upward from the outlet (28) of 80), through the auxiliary refrigerant inflow passage (76) (81) from the inlet member (75) (80) in the condenser inlet header (12) Also flows downward.

  11 to 13 show a second embodiment of the capacitor according to the present invention. FIG. 11 specifically shows the overall configuration of the second embodiment of the capacitor according to the present invention, and FIG. 12 schematically shows the capacitor of FIG. In FIG. 12, the illustration of the individual heat exchange tubes (5) is omitted, and the illustration of the corrugated fins and the side plates is also omitted. FIG. 13 shows the main part of the capacitor of FIG.

  11 to 13, a refrigerant inflow passage (17 at both ends) is opened at a portion of the right side header tank (6) of the condenser (40) that is biased toward the upper end side of the central portion in the longitudinal direction of the condenser inlet header (12). ) And an aluminum inlet member (41) through which the refrigerant flows into the condenser inlet header (12) is brazed. The inlet member (41) is obtained by turning the inlet member (16) used in the capacitor (1) of the first embodiment described above upside down, and the insertion portion (24) is a condenser inlet header. (12) is inserted into the condenser inlet header (12) through the opening (23) formed in the portion offset to the upper end side from the longitudinal central portion, and the contact portion (25) is the condenser inlet header (12). The outer peripheral surface of the peripheral wall is brazed to the outer peripheral surface of the peripheral wall of the condenser inlet header (12) in a state of being in close contact with a portion around the opening (23). The insertion part (24) does not interfere with the heat exchange pipe (5) of the first heat exchange path (P1), and a gap (29) is formed between the insertion part (24) and the peripheral wall of the condenser inlet header (12). ) Exists.

  The lower part in the condenser outlet header (13) and the lower part in the receiver (4), and the upper part in the supercooler inlet header (14) and the lower part in the receiver (4) are on the left side. The refrigerant that has been communicated by the aluminum communication members (21) and (22) brazed to the header tank (7) and the liquid receiver (4), and the refrigerant flowing out from the condenser outlet header (13) It flows into the supercooling section inlet header (14) via (4).

  Other configurations are the same as those of the capacitor of the first embodiment.

  FIG. 14 shows a modification of the inlet member used in the capacitor (40) shown in FIGS.

  An inlet member (85) shown in FIG. 14 is obtained by turning the inlet member (70) shown in FIG. 8 upside down, and one end thereof is on the top surface of the second straight portion (17b) of the refrigerant inflow passage (17). A vertical auxiliary refrigerant inflow passage (86) is formed that opens at the top and faces the other end of the insertion portion (24) facing away from the center in the longitudinal direction of the condenser inlet header (12). Yes. The passage sectional area of the auxiliary refrigerant inflow passage (86) is the same over the entire length and is smaller than the passage sectional area of the second straight portion (17b) of the refrigerant inflow passage (17). ) Is smaller than the size of the outlet (28).

  In the capacitor (40) of the second embodiment, the inlet members (30) (35) (75) (80) shown in FIGS. 6, 7, 9 and 10 may be used upside down. Good.

  15 and 16 show a third embodiment of the capacitor according to the present invention. FIG. 15 specifically shows the overall configuration of the third embodiment of the capacitor according to the present invention, and FIG. 16 schematically shows the capacitor of FIG. In FIG. 16, illustration of individual heat exchange tubes is omitted, and illustration of corrugated fins and side plates is also omitted.

  15 and 16, in the condenser (2) of the condenser (50), at least one, in this case, three heat exchange paths (P1) composed of a plurality of heat exchange tubes (5) arranged continuously in the vertical direction. ) (P2) (P3). In addition, the supercooling section (3) of the condenser (50) is provided with at least one, in this case, one heat exchange path (P4) composed of a plurality of heat exchange tubes (5) arranged continuously in the vertical direction. ing. In addition, the refrigerant flow directions of all heat exchange pipes (5) constituting each heat exchange path (P1) (P2) (P3) (P4) are the same, and the heat of two adjacent heat exchange paths The refrigerant flow direction of the exchange pipe (5) is different. Here, the three heat exchange paths (P1), (P2), and (P3) of the condensation section (2) are referred to as first to third heat exchange paths, and the heat exchange path (P4) of the supercooling section (3) is the first. It shall be a 4 heat exchange path.

  The right header tank (6) has an aluminum first partition member (51) provided between the third heat exchange path (P3) and the fourth heat exchange path (P4), and a first heat exchange path ( P1) and a second heat exchange path (P2) are partitioned into three compartments arranged in the vertical direction by an aluminum second partition member (52). In the left header tank (7), an aluminum second tank is provided between the third heat exchange path (P3) and the fourth heat exchange path (P4) and at the same height as the first partition member (51). Three partition members arranged in the vertical direction by three partition members (53) and a fourth partition member (54) made of aluminum provided between the second heat exchange path (P2) and the third heat exchange path (P3). It is divided into compartments. The portion located above the first and third partition members (51) and (53) in the capacitor (50) is the condensing part (2), and the portion located below both the partition members (51) and (53) is It is a supercooling section (3). Since the three heat exchange paths (P1), (P1), and (P3) are provided in the condensing part (2), the section above the second partition member (52) in the right header tank (6) is condensed. The first header (55) is a section above the fourth partition member (54) in the left header tank (7), and the first partition member (51 in the right header tank (6)). ) And the second partition member (52) is a second intermediate header (56) between the third partition member (53) and the fourth partition member (54) in the left header tank (7). The compartment is the condenser outlet header (13). In addition, since one fourth heat exchange path (P4) is provided in the supercooling section (3), the section below the third partition member (53) in the left header tank (7) is the inlet of the supercooling section. A section below the first partition member (51) in the right header tank (6) is the supercooling section outlet header (15).

  It is used for the capacitor (1) of the first embodiment in a portion that is biased toward one end of the outer peripheral surface of the peripheral wall of the condensing portion inlet header (12), that is, a portion that is biased toward the lower end here. An aluminum inlet member (16) is brazed. The inlet member (16) has the insertion portion (24) through the opening (23) formed in a portion of the condensation portion inlet header (12) that is biased toward the upper end side with respect to the longitudinal center portion. Inserted into the outer wall of the peripheral wall of the inlet of the condenser (12) in the state where the inner part of the outer wall of the outer wall of the inlet of the condenser (12) is in close contact with the opening (23). It is brazed.

  Other configurations are the same as those of the capacitor of the first embodiment. In this embodiment, the inlet members (30) (35) (70) (75) (80) shown in FIGS. 6 to 10 may be used.

  The condenser (50) constitutes a refrigeration cycle together with a compressor, an expansion valve (decompressor) and an evaporator, and is mounted on a vehicle as a car air conditioner.

  In the condenser (50) having the above-described configuration, the high-temperature and high-pressure gas-phase refrigerant compressed by the compressor passes through the refrigerant inflow path (17) of the inlet member (16) to the lower part in the condenser inlet header (12). Inflow. At this time, the refrigerant flows out from the outlet (28) of the inlet member (16) upward (in the longitudinal direction central side of the condensing unit inlet header (12)), so that a large amount of refrigerant flows into the condensing unit inlet header (12 ) Flow up to the upper end in the inside, and the remaining refrigerant passes through the gap (29) between the insertion portion (24) of the inlet member (16) and the peripheral wall of the condenser inlet header (12) from the inlet member (16). Also flows downward. Therefore, the refrigerant that has flowed into the condenser inlet header (12) through the refrigerant inflow path (17) of the inlet member (16) is distributed throughout the condenser inlet header (12), and the condenser inlet header (12). Are evenly divided into the total heat exchange pipe (5) of the first heat exchange path (P1) connected to. The refrigerant that has flowed into the heat exchange pipe (5) of the first heat exchange path (P1) flows leftward in the heat exchange pipe (5) of the first heat exchange path (P1), and flows into the first intermediate header (55). ), Flows rightward in the heat exchange pipe (5) of the second heat exchange path (P2), flows into the second intermediate header (56), and heats in the third heat exchange path (P3). It flows in the exchange pipe (5) to the left and flows into the condenser outlet header (13). The refrigerant flowing into the condenser outlet header (13) flows into the liquid receiver (4) through the communication member (21).

  The refrigerant that has flowed into the liquid receiver (4) is a gas-liquid mixed-phase refrigerant, and the liquid-phase main mixed-phase refrigerant of the gas-liquid mixed-phase refrigerant accumulates in the lower part of the liquid receiver (4) due to gravity, and the communication member ( 22) through the supercooling section inlet header (14). The refrigerant that has entered the supercooling section inlet header (14) enters the heat exchange pipe (5) of the fourth heat exchange path (P4) and enters the heat exchange pipe (5) of the fourth heat exchange path (P4). After being supercooled while flowing to the right in the flow path, it enters the supercooling section outlet header (15) and flows out through the refrigerant outlet (18) and the refrigerant outlet path (19a) of the outlet member (19). Then, it is sent to the evaporator through the expansion valve.

  In the capacitors (1), (40) and (50) of the first to third embodiments described above, the supercooling section (3) is provided below the condensing section (2). A supercooling unit may be provided above the condensing unit. For example, it includes a condensing unit, a supercooling unit provided above the condensing unit, and a liquid receiver provided between the condensing unit and the supercooling unit. The refrigerant flows into the supercooling section through the liquid container, and the refrigerant is introduced into the liquid receiver, and the refrigerant flows into the supercooling section that is located above the refrigerant inlet and located above the refrigerant inlet. A refrigerant outlet is formed, and a partition member for vertically dividing the interior of the liquid receiver is provided at a height position between the refrigerant inlet and the refrigerant outlet in the liquid receiver. A first space through which the refrigerant inlet below the member communicates and a second space through which the refrigerant outlet above the partition member communicates are provided, and the first space and the second space are passed through the receiver. It can also be applied to a capacitor in which a suction pipe is arranged.

  17 and 18 show a fourth embodiment of the capacitor according to the present invention. FIG. 17 specifically shows the overall configuration of the fourth embodiment of the capacitor according to the present invention, and FIG. 18 schematically shows the capacitor of FIG. In FIG. 18, illustration of individual heat exchange tubes is omitted, and illustration of corrugated fins and side plates is also omitted.

  17 and 18, the condenser (60) is condensed with the condensing unit (2), the supercooling unit (3) provided below the condensing unit (2), and the longitudinal direction thereof directed vertically. A liquid receiving part (61) provided between the part (2) and the supercooling part (3) and having a gas-liquid separation function.

  The condenser section (2) and the supercooling section (3) of the condenser (60) each include at least one heat exchange pipe (here, one heat exchange path) (here, one heat exchange path ( P1) and (P2) are provided, the heat exchange path (P1) provided in the condensing part (2) serves as a refrigerant condensing path, and the heat exchange path (P2) provided in the supercooling part (3) serves as a refrigerant. It is a supercooling path. And the refrigerant | coolant flow direction of all the heat exchange pipe | tubes (5) which comprise each heat exchange path | pass (P1) (P2) is the same, and the heat exchange pipe | tube (5) of two adjacent heat exchange paths | paths The refrigerant flow direction is different. Here, the heat exchange path (P1) of the condensing part (2) is called a first heat exchange path (P1), and the heat exchange path (P2) of the supercooling part (3) is called a second heat exchange path (P2). Shall. In this embodiment, since the condensing part (2) is provided with one first heat exchange path (P1), the first heat exchanging path (P1) is the refrigerant flow direction of the condensing part (2). It is a heat exchange path on the most upstream side and at the same time a heat exchange path on the most downstream side in the refrigerant flow direction.

  A first header tank (62) to which the right end of all heat exchange pipes (5) constituting the first and second heat exchange paths (P1) (P2) is connected to the right end of the condenser (60). Is arranged. The first header tank (62) is divided into two upper and lower sections by an aluminum partition member (63) provided at a height between the first heat exchange path (P1) and the second heat exchange path (P2). It is divided into A condensing unit inlet header (12) that communicates with an upstream end of the first heat exchange path (P1) of the condensing unit (2) in the refrigerant flow direction upstream of the partition member (63) of the first header tank (62). ), And a subcooling section outlet header (15) that communicates with the downstream end of the second heat exchange path (P2) of the subcooling section (3) in the refrigerant flow direction.

  On the left end side of the condenser (60) is a second header tank (with the left end of the total heat exchange pipe (5) of the first heat exchange path (P1) provided in the condenser (2) connected by brazing. 64) and a third header tank (65) in which the left end of the heat exchange pipe (5) of the second heat exchange path (P2) provided in the supercooling section (3) is connected by brazing. Three header tanks (65) are provided separately so as to be located on the outer side in the left-right direction. The upper end of the third header tank (65) is located above the lower end of the second header tank (64), and here is substantially at the same height as the upper end of the second header tank (64). The lower end of the third header tank (65) is located below the lower end of the second header tank (64), and is located below the second header tank (64) in the third header tank (65). The second heat exchange pipe (5) constituting the second heat exchange path (P2) is connected to the portion to be brazed by brazing. The third header tank (65) stores the liquid phase main refrigerant condensed in the condensing unit (2) and also has a liquid receiving unit functioning as a liquid storage unit for supplying the liquid phase main refrigerant to the supercooling unit (3). 61).

  The entire second header tank (64) is provided with a condensing unit outlet header (13) that communicates with the downstream end of the first heat exchange path (P1) of the condensing unit (2) in the refrigerant flow direction. In the portion of the third header tank (65) located below the lower end of the second header tank (64), the upstream end in the refrigerant flow direction of the second heat exchange path (P2) of the subcooling section (3) A supercooling section inlet header (14) is provided. And the lower end part in the condensation part exit header (13) of the 2nd header tank (64) and the part above the supercooling part inlet header (14) in the 3rd header tank (65) are communicating members ( 66). The portion above the supercooling section inlet header (14) in the third header tank (65) and the supercooling section inlet header (14) communicate with each other in the third header tank (65).

  It is used for the capacitor (1) of the first embodiment in a portion that is biased toward one end of the outer peripheral surface of the peripheral wall of the condensing portion inlet header (12), that is, a portion that is biased toward the lower end here. An aluminum inlet member (16) is brazed. The inlet member (16) has the insertion portion (24) through the opening (23) formed in a portion of the condensation portion inlet header (12) that is biased to the lower end side with respect to the longitudinal center portion. Inserted into the outer wall of the peripheral wall of the inlet of the condenser (12) in the state where the inner part of the outer wall of the outer wall of the inlet of the condenser (12) is in close contact with the opening (23). It is brazed.

  Other configurations are the same as those of the capacitor of the first embodiment. In this embodiment, the inlet members (30) (35) (70) (75) (80) shown in FIGS. 6 to 10 may be used.

  The condenser (60) constitutes a refrigeration cycle together with a compressor, an expansion valve (decompressor) and an evaporator, and is mounted on a vehicle as a car air conditioner.

  In the condenser (60) having the above-described configuration, the high-temperature and high-pressure gas-phase refrigerant compressed by the compressor passes through the refrigerant inflow path (17) of the inlet member (16) to the lower part in the condenser inlet header (12). Inflow. At this time, the refrigerant flows out from the outlet (28) of the inlet member (16) upward (in the longitudinal direction central side of the condensing unit inlet header (12)), so that a large amount of refrigerant flows into the condensing unit inlet header (12 ) Flow up to the upper end of the inner part, and the remaining refrigerant passes through the gap (29) between the insertion part (24) of the inlet member (16) and the peripheral wall of the condenser inlet header (12) from the inlet member (26). Also flows downward. Accordingly, the refrigerant that has flowed into the condenser inlet header (12) through the refrigerant inflow passage (17) of the inlet member (16) is distributed throughout the condenser inlet header (12), and the condenser inlet header (12). Are evenly divided into the total heat exchange pipe (5) of the first heat exchange path (P1) connected to. The refrigerant that has flowed into the heat exchange pipe (5) of the first heat exchange path (P1) flows leftward in the heat exchange pipe (5) of the first heat exchange path (P1) and flows into the second header tank (64 ) Flows into the condenser outlet header (13). The refrigerant that has flowed into the condensing unit outlet header (13) of the second header tank (64) passes through the communication member (66) and is higher than the supercooling unit inlet header (14) in the third header tank (65). Flows into the part.

  The refrigerant that has flowed into the third header tank (65) above the supercooling section inlet header (14) is a gas-liquid mixed phase refrigerant. Among the gas-liquid mixed phase refrigerant, the liquid-phase main mixed phase refrigerant is caused by gravity. It accumulates in the supercooling section inlet header (14) of the third header tank (65) and enters the heat exchange pipe (5) of the second heat exchange path (P2). The liquid phase main mixed refrigerant entering the heat exchange pipe (5) of the second heat exchange path (P2) is supercooled while flowing rightward in the second heat exchange pipe (5), and then the first header. The refrigerant enters the supercooling section outlet header (15) of the tank (62), flows out through the refrigerant outlet (18) and the refrigerant outlet path (19a) of the outlet member (19), and is sent to the evaporator through the expansion valve.

  The capacitor | condenser by this invention is used suitably for the car air conditioner mounted in a motor vehicle.

(1) (40) (50) (60): Capacitor
(2): Condensing part
(3): Supercooling section
(4): Liquid receiver (liquid receiver)
(5): Heat exchange pipe
(12): Condenser inlet header
(13): Condenser outlet header
(14): Supercooler inlet header
(15): Supercooler outlet header
(16) (30) (35) (41) (70) (75) 80) (85): Entrance member
(17): Refrigerant inflow path
(17b) (17c) (17d): Second straight line part
(23): Opening
(24): Insertion section
(26) (31) (36): Plane
(27): Inlet
(28): Outlet
(29): Gap
(61): Liquid receiver
(62): First header tank
(64): 2nd header tank
(65): Third header tank
(66): Communication member
(71) (76) (81) (86): Auxiliary refrigerant inflow passage

Claims (10)

Condenser inlet header arranged with the longitudinal direction facing up and down, and arranged in parallel with the longitudinal direction facing left and right and spaced in the vertical direction, and one end in the longitudinal direction connected to the condenser inlet header A heat exchange path composed of a plurality of heat exchange pipes, the condenser inlet header having a refrigerant inflow passage that is open at both ends, and closer to one end than the longitudinal center in the condenser inlet header. An inlet member for allowing the refrigerant to flow is joined to the biased portion, and one end opening of the refrigerant inflow passage of the inlet member serves as an inflow port from the outside, and the other end opening serves as an outflow port into the condenser inlet header. In the capacitor
An opening is formed in a portion of the peripheral wall of the condensing unit inlet header that is deviated to one end side from the central portion in the longitudinal direction, and the insertion member inserted into the condensing unit inlet header through the opening is condensed with the insertion unit. The inlet of the refrigerant is provided so that a gap exists between a part of the peripheral wall of the header of the part inlet, the outlet of the refrigerant inflow path is open to the insertion part, and the outlet of the refrigerant inflow path is the inlet of the condenser. Capacitor designed to flow out toward the center in the longitudinal direction of the header. 2. The capacitor according to claim 1, wherein the outlet of the insertion portion of the inlet member is located on one plane, and a straight line perpendicular to the plane extends in the longitudinal direction of the condenser inlet header. The outlet of the inlet member insertion portion is located on one plane, and a straight line passing through the center of the outlet and perpendicular to the plane is a central portion in the longitudinal direction of the condenser inlet header from the plane. 2. The capacitor according to claim 1, wherein the capacitor is inclined in a direction away from a straight line passing through a center of the outlet and extending in a longitudinal direction of the condenser inlet header as it goes to the side, and both straight lines form a constant angle. An angle formed by a straight line perpendicular to one plane where the outlet of the insertion portion of the inlet member is positioned and a straight line extending in the longitudinal direction of the condenser inlet header is 0 to 45 degrees (excluding 0 degrees) The capacitor according to claim 3. The capacitor according to any one of claims 2 to 4, wherein a straight line perpendicular to one plane on which the outlet of the inlet member is located is located on a plane perpendicular to the ventilation direction. A straight portion is provided at a constant length portion on the outlet side in the refrigerant inlet passage of the inlet member, and the straight portion extends from the inlet side to the outlet side on the central side in the longitudinal direction of the condenser inlet header. 6. The capacitor according to claim 5, which is inclined toward the heat exchange tube. Auxiliary refrigerant inflow passage having one end opened on the inner surface of the refrigerant inflow passage at the insertion portion of the inlet member and the other end opened on a surface facing the opposite side of the central portion in the longitudinal direction of the condensing portion inlet header in the insertion portion The capacitor according to claim 1, wherein the size of the opening of the other end of the auxiliary refrigerant inflow path is smaller than the size of the outlet. A condensing part, a supercooling part provided below or above the condensing part, and a liquid receiving part provided between the condensing part and the supercooling part. At least one heat exchange path composed of a plurality of heat exchange tubes arranged in parallel in the vertical direction and spaced apart in the vertical direction, and the downstream end portion in the refrigerant flow direction of the heat exchange path on the most downstream side in the refrigerant flow direction And a condenser outlet header through which the refrigerant that has flowed through the total heat exchange path of the condenser flows, and the upstream end of the heat exchange path of the heat exchange path on the most upstream side in the refrigerant flow direction communicates with the inlet header of the condenser. The supercooling section is arranged with the supercooling section inlet header arranged with the longitudinal direction oriented in the vertical direction, the supercooling section exit header arranged with the longitudinal direction oriented in the vertical direction, and the longitudinal direction oriented in the horizontal direction. And in parallel with a gap in the vertical direction At least one supercooling heat exchange path composed of a plurality of heat exchange pipes, and an upstream end portion in the refrigerant flow direction of the supercooling heat exchange path on the most upstream side in the refrigerant flow direction is provided on the inlet header of the supercooling section. And the downstream end of the refrigerant cooling direction of the subcooling heat exchange path on the most downstream side in the refrigerant flow direction is communicated to the subcooling unit outlet header, and the liquid receiving unit is connected to the condensing unit outlet header and the supercooling unit inlet. The condenser according to any one of claims 1 to 7, wherein the refrigerant that is communicated with the header and flows out of the condenser outlet header flows into the subcooling inlet header through the liquid receiver. . The condenser according to claim 8, wherein one heat exchange path is provided in the condensing unit, and all heat exchange pipes of the heat exchanging path are connected to the condensing unit inlet header and the condensing unit outlet header. A first header tank whose longitudinal direction is directed vertically is disposed on one end side of the heat exchange pipe, and a second header tank and a third header tank whose longitudinal direction is directed vertically on the other end side are third The header tank is provided so as to be located on the outer side in the left-right direction with respect to the second header tank, the condenser header inlet header and the supercooler outlet header are provided on the first header tank so that the former is located on the upper side, A condensing unit outlet header is provided in the entire header tank, and a total heat exchange pipe of a heat exchanging path of the condensing unit is connected to the condensing unit outlet header, so that the lower end of the third header tank is below the lower end of the second header tank. And the upper end of the second header tank is located above the lower end of the second header tank, and the supercooling portion is inserted in a portion of the third header tank located below the lower end of the second header tank. A header is provided, and the inside of the condensing part outlet header of the second header tank and the part located above the lower end of the second header tank in the third header tank are communicated via the communication part. 9. The capacitor according to 9.

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