JP2018146153A - Condenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a condenser which enables width reduction while reducing a refrigerant amount.SOLUTION: A condenser 10 includes an inlet side connector 50 and a modulator tank. The modulator tank has a first modulator tank and a second modulator tank 62. The second modulator tank 62 communicates with an internal space of the first modulator tank. The inlet side connector 50 has: a refrigerant passage 500 for allowing a refrigerant to flow into a header tank 40 from a pipeline; a venturi part 501 provided in the middle of the refrigerant passage 500; and an introduction passage 502 for introducing a gas phase refrigerant in the second modulator tank 62 into the venturi part 501.SELECTED DRAWING: Figure 2

Description

  The present disclosure relates to a condenser.

  Conventionally, there is a refrigeration apparatus described in Patent Document 1. The refrigeration apparatus described in Patent Document 1 has a structure in which a compressor, a condenser, a receiver tank, an expansion valve, and an evaporator are connected in series, and a heat exchange action is achieved by circulating a refrigerant through these elements. I do. In the refrigeration apparatus described in Patent Document 1, a feedback circuit is provided that returns the refrigerant gas in the receiver tank to the condenser by connecting the gas region chamber of the receiver tank and the inlet side of the evaporator. According to such a structure, since the dryness in a condenser can be improved, the amount of refrigerant | coolants can be reduced.

JP-A-2-298762

  In recent vehicles, the installation space of the condenser tends to be reduced year by year from the viewpoint of collision safety and design, so that further reduction in the width of the condenser is required. While it is required to reduce the thickness of the condenser, the modulator tank for storing the refrigerant still has a large shape, and this is presently preventing the condenser from being thinned. This is a problem common to the condenser described in Patent Document 1.

  The present disclosure has been made in view of such circumstances, and an object thereof is to provide a condenser capable of reducing the thickness while reducing the amount of refrigerant.

  The condenser (10) that solves the above problems includes a core part (20), a first header tank (40) and a second header tank (41), an inlet side connector (50), and a modulator tank (60). . A core part is comprised by the laminated structure of the some tube 21 with which a refrigerant | coolant distribute | circulates, and heat-radiates a refrigerant | coolant by heat exchange with the external fluid which flows outside the tube. The first header tank and the second header tank are formed so as to extend in the tube stacking direction, and are connected to both ends of the core portion in the longitudinal direction of the tube. The inlet side connector is connected to a pipe for allowing the refrigerant to flow into the first header tank. The modulator tank stores the liquid phase refrigerant by separating the refrigerant flowing out of the second header tank into a liquid phase refrigerant and a gas phase refrigerant. The modulator tank includes a first modulator tank (61) and a second modulator tank (62). The first modulator tank is formed so as to extend in the tube stacking direction, is disposed adjacent to the second header tank, and communicates with the internal space (412b) of the second header tank. The second modulator tank is formed to extend from the first modulator tank toward the first header tank, and communicates with the internal space (610) of the first modulator tank. The inlet connector includes a refrigerant flow path (500) for allowing the refrigerant to flow into the first header tank from the pipe, a venturi section (501) provided in the middle of the refrigerant flow path, and a gas phase refrigerant inside the second modulator tank. And an introduction channel (502) introduced into the venturi section.

  According to this configuration, since the modulator tank is divided into the first modulator tank and the second modulator tank, the entire capacity of the modulator tank remains unchanged, and the capacity of the first modulator tank and the second modulator tank is small. A tank can be used. Therefore, since the first modulator tank and the second modulator tank can be reduced in size, it is possible to reduce the width of the condenser. Moreover, since the gaseous-phase refrigerant | coolant inside a 2nd modulator tank can be recirculated to a core part via an inlet side connector, it is also possible to reduce a refrigerant | coolant amount.

  In addition, the code | symbol in the parenthesis as described in a claim is an example which shows a corresponding relationship with the specific means as described in embodiment mentioned later.

  According to the present disclosure, it is possible to provide a condenser that can be thinned while reducing the amount of refrigerant.

FIG. 1 is a front view showing a front structure of the condenser according to the first embodiment. FIG. 2 is a cross-sectional view showing an enlarged cross-sectional structure of the distal end of the second modulator tank and the inlet side connector of the first embodiment. FIG. 3 is a cross-sectional view showing an enlarged cross-sectional structure of the distal end of the second modulator tank and the inlet side connector of the second embodiment. FIG. 4 is a cross-sectional view showing an enlarged cross-sectional structure of the distal end of the second modulator tank and the inlet side connector of the third embodiment. FIG. 5 is a cross-sectional view showing an enlarged cross-sectional structure of the distal end of the second modulator tank and the inlet side connector according to a modification of the third embodiment.

Hereinafter, an embodiment of a condenser will be described with reference to the drawings. In order to facilitate the understanding of the description, the same constituent elements in the drawings will be denoted by the same reference numerals as much as possible, and redundant description will be omitted.
<First Embodiment>
First, the condenser 10 of 1st Embodiment shown by FIG. 1 is demonstrated. A condenser 10 shown in FIG. 1 is a heat exchanger constituting a vapor compression refrigeration cycle applied to an air conditioner for a vehicle. The refrigeration cycle is configured as a closed circuit in which a compressor, a condenser 10, a pressure reducing mechanism, an evaporator, and the like are sequentially connected by piping. In the refrigeration cycle, an engine-driven compressor that is driven based on engine power is employed. The compressor may be an electric compressor driven by power transmitted from the electric motor.

  The condenser 10 condenses the high-temperature and high-pressure gas-phase refrigerant discharged from the compressor by exchanging heat with outside air that is an external fluid. The condenser 10 causes the refrigerant condensed inside to flow to the evaporator via the pressure reducing mechanism. The condenser 10 is disposed in an engine room in which an internal combustion engine that is a drive source of the vehicle is installed. The condenser 10 is arrange | positioned at the introduction path | route of the running wind formed in the foremost part in an engine room, for example.

  The main members constituting the condenser 10 are made of an aluminum metal material such as aluminum or an aluminum alloy. The condenser 10 is brazed and joined with a brazing material provided in advance at a necessary portion of each member in a state where the members made of a metal material are assembled.

  As shown in FIG. 1, the condenser 10 includes a core part 20, a pair of side plates 30 and 31, a pair of header tanks 40 and 41, a pair of connectors 50 and 51, and a modulator tank 60. ing. The up and down, left and right arrows in FIG. 1 indicate the up and down direction and the left and right direction in the vehicle mounted state. The upper direction also corresponds to the upper vertical direction, and the lower direction also corresponds to the lower vertical direction. The same applies to the drawings other than FIG.

  The core part 20 has a laminated structure in which a plurality of tubes 21 through which a refrigerant flows are laminated in the vertical direction. The core part 20 constitutes a heat exchanging part that radiates the refrigerant by exchanging heat between the refrigerant that flows inside the tube 21 and the air that is the external fluid that flows outside the tube 21.

  Fins 22 that promote heat exchange between the refrigerant and the air are provided in the gap between the adjacent tubes 21 and 21. The fin 22 is comprised by the corrugated fin formed so that it might be bent in a wave shape. The fins 22 are not limited to corrugated fins, and may be configured by plate fins or the like.

Each tube 21 is composed of a single-hole or multi-hole tube having a flat cross section. Each tube 21 is laminated at a predetermined interval so that air flows between adjacent tubes 21.
1, illustration of the tube 21 and the fin 22 which comprise the core part 20 is abbreviate | omitted.

  The core unit 20 includes a condensing unit 23 that condenses the refrigerant and a supercooling unit 24 that cools the liquid-phase refrigerant that has flowed out of the modulator tank 60. Specifically, a portion of the core portion 20 that is positioned above the solid line DL in the vertical direction constitutes the condensing unit 23, and a portion that is positioned below the solid line DL in the vertical direction constitutes the supercooling portion 24. That is, in the core part 20, the supercooling part 24 is located below the condensing part 23.

The pair of side plates 30 and 31 are reinforcing members that reinforce the core portion 20. The side plates 30 and 31 are disposed in the stacking direction of the tubes 21 in the core portion 20, that is, at both ends in the vertical direction.
Of the pair of side plates 30, 31, the upper end side plate 30 is joined to the fin 22 located at the upper end of the core portion 20. Of the pair of side plates 30, 31, the lower end side plate 31 is joined to the fin 22 located at the lower end of the core portion 20.

  The pair of header tanks 40 and 41 function as a tank that performs at least one of collection and distribution of the refrigerant flowing through each tube 21. The pair of header tanks 40 and 41 are formed of a cylindrical hollow member formed so as to extend along the stacking direction of the tubes 21. The first header tank 40 is connected to one end of the tube 21 in the longitudinal direction, and the second header tank 41 is connected to the other end of the tube 21 in the longitudinal direction. An internal space communicating with the inside of each tube 21 is formed inside each header tank 40, 41.

  The first header tank 40 is provided with two separators 400 and 401 as partition members that partition the internal space up and down. The inside of the first header tank 40 is divided into three internal spaces 402 a to 402 c by two separators 400 and 401. Among these, the upper internal space 402 a communicates with the tube 21 in the upper part of the condensing unit 23. The central internal space 402b communicates with the tube 21 in the middle and lower part of the condensing unit 23. The lower internal space 402 c communicates with the tube 21 of the supercooling unit 24.

  The internal space 402 a above the first header tank 40 is a space for distributing the refrigerant to the tubes 21 in the upper stage portion of the condensing unit 23. The inner space 402b in the center of the first header tank 40 collects the refrigerant that has passed through the tube 21 in the middle part of the condensing unit 23 and distributes the collected refrigerant to the tubes 21 in the lower part of the condensing unit 23. It is. The internal space 402c below the first header tank 40 is a space for collecting the refrigerant that has passed through the tube 21 of the supercooling unit 24.

  The second header tank 41 is provided with two separators 410 and 411 as partition members that partition the internal space up and down. The inside of the second header tank 41 is divided into three internal spaces 412a to 412c by two separators 410 and 411. Among these, the upper internal space 412 a communicates with the tube 21 in the upper part of the condensing unit 23 and the tube 21 in the middle part. The central internal space 412 b is in communication with the tube 21 in the lower part of the condensing unit 23. The lower internal space 412 c communicates with the tube 21 of the supercooling unit 24.

  The internal space 412a above the second header tank 41 communicates with the internal space 402a above the first header tank 40 and the central internal space 402b via the tube 21 constituting the condensing unit 23. The internal space 412 a is a space that collects the refrigerant that has passed through the tube 21 in the upper part of the condensing unit 23 and distributes the collected refrigerant to the tube 21 in the middle part of the condensing unit 23.

  The central internal space 412 b of the second header tank 41 is communicated with the central internal space 402 b of the first header tank 40 via the tube 21 that constitutes the condensing unit 23. The internal space 412b is a space for collecting the refrigerant that has passed through the tube 21 in the lower part of the condensing unit 23.

The internal space 412 c below the second header tank 41 is communicated with the internal space 402 c below the first header tank 40 via the tube 21 constituting the supercooling unit 24. The internal space 412c is a space for distributing the refrigerant to the tubes 21 of the supercooling unit 24.
The modulator tank 60 separates the refrigerant flowing out from the condensing unit 23 of the core unit 20 into a liquid phase refrigerant and a gas phase refrigerant, and temporarily stores the liquid phase refrigerant. Inside the modulator tank 60, internal spaces 610 and 620 for storing the liquid phase refrigerant are formed. The modulator tank 60 plays a role of adjusting the circulation amount of the refrigerant circulating in the cycle in accordance with the load fluctuation of the refrigeration cycle.

The modulator tank 60 includes a first modulator tank 61 and a second modulator tank 62 that are arranged in an L shape. The modulator tank 60 is made of a metal material made of aluminum.
The first modulator tank 61 is formed so as to extend in the stacking direction of the tubes 21 and is disposed adjacent to the second header tank 41. The first modulator tank 61 is formed in a cylindrical shape and has an internal space 610 for storing a liquid phase refrigerant. An internal space 610 of the first modulator tank 61 is communicated with the inside of the second header tank 41 via an inflow pipe 611 and an outflow pipe 612. The inflow pipe 611 allows the refrigerant to flow into the internal space 610 of the first modulator tank 61 from the central internal space 412 b of the second header tank 41. The outflow pipe 612 causes the liquid refrigerant to flow out from the internal space 610 of the first modulator tank 61 to the internal space 412 c below the second header tank 41.

  The second modulator tank 62 is disposed above the core unit 20 in the vertical direction. By connecting one end of the second modulator tank 62 to the first modulator tank 61, the internal space 620 of the second modulator tank 62 is communicated with the internal space 610 of the first modulator tank 61. The second modulator tank 62 is formed to extend from the first modulator tank 61 toward the first header tank 40.

  As shown in FIG. 2, a partition plate 621 is formed inside the end portion of the second modulator tank 62 opposite to the end portion connected to the first modulator tank 61. The partition plate 621 is provided to partition the internal space 620 of the second modulator tank 62 into a first internal space 620 a and a second internal space 620 b in the longitudinal direction of the tube 21.

  The second modulator tank 62 has a communication path 622 that communicates the upper portions of the first internal space 620a and the second internal space 620b in the vertical direction. In addition, a through hole 624 is formed in the outer wall 623 at the tip of the second modulator tank 62 so as to penetrate from the second internal space 620 b of the second modulator tank 62 to the outside. Through the through hole 624, the second internal space 620 b of the second modulator tank 62 communicates with the introduction flow path 502 of the inlet side connector 50.

  The inlet-side connector 50 is formed so as to extend from the side surface of the portion constituting the internal space 402 a above the first header tank 40 to the outer wall portion 623 at the tip of the second modulator tank 62. An external pipe (not shown) through which the refrigerant discharged from the compressor flows is connected to the inlet side connector. The inlet-side connector 50 includes a refrigerant channel 500, a venturi unit 501, and an introduction channel 502.

The refrigerant flows into the refrigerant channel 500 from a pipe connected to the inlet-side connector 50. This refrigerant flows into the first header tank 40 through the refrigerant flow path 500.
The venturi portion 501 is formed in the middle of the coolant channel 500. The venturi portion 501 is a portion that increases the flow velocity by restricting the flow of the refrigerant and generates a lower pressure than the low speed portion. In the upstream portion of the venturi section 501 in the refrigerant flow path 500, the flow rate decreases and the pressure increases. Further, the downstream portion of the venturi section 501 in the refrigerant flow channel 500 functions as a diffuser that gradually increases the cross-sectional area of the flow channel to reduce the flow velocity and increase the pressure.

The introduction flow path 502 allows the venturi portion 501 and the through hole 624 of the second modulator tank 62 to communicate with each other. The introduction flow path 502 is a flow path that guides the gas-phase refrigerant inside the second modulator tank 62 to the venturi unit 501.
As shown in FIG. 1, the outlet-side connector 51 is formed in a portion constituting an internal space 402 c below the first header tank 40. The outlet-side connector 51 is connected to an external pipe that guides the refrigerant that has passed through the condenser 10 to the decompression mechanism.

Next, an operation example of the condenser 10 of the present embodiment will be described.
When the operation of the air conditioner is started by turning on the operation switch of the air conditioner during the operation of the engine, the compressor is driven by the engine power. Thereby, a compressor compresses and discharges a refrigerant. The high-temperature and high-pressure gas-phase refrigerant discharged from the compressor flows into the internal space 402a above the first header tank 40 via the external piping and the inlet side connector 50.

  The refrigerant that has flowed into the internal space 402a is, as shown by the two-dot chain arrows in FIG. 1, the tube 21 in the upper part of the condenser 23, the internal space 412a above the second header tank 41, and the middle part of the condenser 23. It flows through the tube 21 in the portion, the inner space 402b in the center of the first header tank 40, the tube 21 in the lower portion of the condenser 23, and the inner space 412b in the center of the second header tank 41 in this order. When the refrigerant flows through the tube 21 of the condenser 23, heat exchange is performed between the refrigerant and air, thereby cooling the refrigerant. As a result, the liquid-phase refrigerant partially including the gas-phase refrigerant flows into the central internal space 412b of the second header tank 41.

The refrigerant that has flowed into the internal space 412b flows into the internal spaces 610 and 620 of the modulator tank 60 via the inflow pipe 611. In the internal spaces 610 and 620 of the modulator tank 60, the gas-phase refrigerant and the liquid-phase refrigerant are caused by the specific gravity difference of the refrigerant. And separated.
Specifically, in the internal space 610 of the first modulator tank 61, the gas phase refrigerant having a low specific gravity gathers in the upper part, and the liquid phase refrigerant having a higher specific gravity than the gas phase refrigerant gathers in the lower part and is stored. Further, as shown in FIG. 2, in the internal space 620 of the second modulator tank 62, similarly, the light-phase refrigerant having a lower specific gravity collects in the upper part and the liquid-phase refrigerant having a higher specific gravity than the gas-phase refrigerant is in the lower part. Collected and stored. At that time, the partition plate 621 functions as a portion that suppresses the inflow of the liquid phase refrigerant from the first internal space 620a to the second internal space 620b while accumulating the liquid phase refrigerant separated in the first internal space 620a. The upper portion of the first internal space 620 a communicates with the venturi portion 501 through the communication path 622, the second internal space 620 b, the through hole 624, and the introduction flow path 502. Therefore, the gas-phase refrigerant existing in the upper part of the first internal space 620a is sucked into the venturi part 501 when the pressure of the refrigerant flowing through the venturi part 501 decreases due to the venturi effect. Thereby, the gas-phase refrigerant in the modulator tank 60 can be recirculated to the core unit 20.

As indicated by a two-dot chain line arrow in FIG. 1, the liquid-phase refrigerant stored in the internal space 610 of the first modulator tank 61 enters the internal space 412 c below the second header tank 41 via the outflow pipe 612. Inflow.
The liquid-phase refrigerant that has flowed into the internal space 412 c exchanges heat with air when passing through the tube 21 of the supercooling unit 24 and is supercooled, and then flows into the internal space 402 c of the first header tank 40. The liquid-phase refrigerant having the degree of supercooling flowing into the internal space 402c flows to the decompression mechanism via the outlet side connector 51.

According to the condenser 10 of this embodiment demonstrated above, the effect | action and effect shown by the following (1)-(3) can be acquired.
(1) Since the modulator tank 60 is divided into the first modulator tank 61 and the second modulator tank 62, the first modulator tank 61 and the second modulator tank 62 are maintained without changing the entire capacity of the modulator tank 60. A tank with a small capacity can be used. Therefore, since the first modulator tank 61 and the second modulator tank 62 can be reduced in size, the condenser 10 can be made thinner. In addition, since the gas-phase refrigerant inside the second modulator tank 62 can be recirculated to the core portion 20 via the inlet-side connector 50, the amount of refrigerant can be reduced.

  (2) The second modulator tank 62 includes a partition plate 621 that partitions the internal space 620 into a first internal space 620a and a second internal space 620b in the longitudinal direction of the tube 21, and the first internal space 620a and the second internal space. It has the communicating path 622 which connects the part of each vertical direction upper side of the space 620b. Further, the second internal space 620 b of the second modulator tank 62 communicates with the introduction flow path 502 of the inlet side connector 50. According to such a configuration, out of the liquid-phase refrigerant and the gas-phase refrigerant collected in the second modulator tank 62, only the gas-phase refrigerant is easily sucked into the venturi unit 501 through the introduction channel 502. Thereby, since it becomes easy to recirculate only a gaseous-phase refrigerant | coolant to the core part 20, the condensation performance of the refrigerant | coolant in the condenser 10 can be improved.

(3) The partition plate 621 is provided at the end of the second modulator tank 62 opposite to the end connected to the first modulator tank 61. Thereby, the partition plate 621 makes it easy to store the liquid-phase refrigerant in the first internal space 620a of the second modulator tank 62.
Second Embodiment
Next, the condenser 10 of 2nd Embodiment is demonstrated. Hereinafter, it demonstrates centering around difference with the condenser 10 of 1st Embodiment.

  As shown in FIG. 3, the condenser 10 according to the present embodiment has a through-hole in the outer wall 623 at the tip of the second modulator tank 62 and the point that the partition plate 621 is not formed inside the second modulator tank 62. It differs from the condenser 10 of 1st Embodiment by the point which 624 is not formed. A through hole 625 is formed in the upper wall of the second modulator tank 62 so as to penetrate from the internal space 620 to the outside. In addition, the condenser 10 of the present embodiment is provided with a pipe 70 that connects the upper portion of the second modulator tank 62 in the vertical direction and the inlet-side connector 50. The pipe 70 communicates the through hole 625 of the second modulator tank 62 with the introduction flow path 502 of the inlet side connector 50.

According to the condenser 10 of this embodiment demonstrated above, in addition to the effect | action and effect shown by (1) of 1st Embodiment, the effect | action and effect shown by the following (4) can be acquired.
(4) Vapor phase refrigerant that accumulates in the upper part of the second modulator tank 62 in the vertical direction is easily sucked into the venturi unit 501 through the pipe 70 and the introduction flow path 502. Thereby, since it becomes easy to recirculate only a gaseous-phase refrigerant | coolant to the core part 20, the condensation performance of the refrigerant | coolant in the condenser 10 can be improved.

<Third Embodiment>
Next, the condenser 10 of 3rd Embodiment is demonstrated. Hereinafter, it demonstrates centering around difference with the condenser 10 of 1st Embodiment.
As shown in FIG. 4, the condenser 10 according to the present embodiment includes a through-hole in the outer wall 623 at the tip of the second modulator tank 62 and the point that the partition plate 621 is not formed inside the second modulator tank 62. It differs from the condenser 10 of 1st Embodiment by the point which 624 is not formed. A through hole 625 is formed in the upper wall of the second modulator tank 62 so as to penetrate from the internal space 620 to the outside. One end of the introduction channel 502 is open on the upper surface of the inlet side connector 50.

  The condenser 10 of this embodiment further includes a cap member 80 attached to the upper surface of the second modulator tank 62 and the upper surface of the inlet side connector 50. The cap member 80 communicates the through hole 625 of the second modulator tank 62 and the introduction flow path 502 of the inlet side connector 50.

According to the condenser 10 of this embodiment demonstrated above, in addition to the effect | action and effect shown by (1) of 1st Embodiment, the effect | action and effect shown by the following (5) can be acquired.
(5) Vapor phase refrigerant that accumulates in the upper part of the second modulator tank 62 in the vertical direction is easily sucked into the venturi section 501 through the cap member 80 and the introduction flow path 502. Thereby, since it becomes easy to recirculate only a gaseous-phase refrigerant | coolant to the core part 20, the condensation performance of the refrigerant | coolant in the condenser 10 can be improved.

(Modification)
Next, the modification of the condenser 10 of 3rd Embodiment is demonstrated.
As shown in FIG. 5, the upper surface of the inlet side connector 50 of the present modification is lower than the bottom surface of the second modulator tank 62. The tip of the second modulator tank 62 extends to above the inlet side connector 50. A through hole 626 penetrating from the internal space 620 to the outside is formed in a portion on the upper side in the vertical direction of the outer wall portion 623 at the tip of the second modulator tank 62.

  A cap member 90 is attached to the tip of the second modulator tank 62. The cap member 90 is also attached to the upper surface of the inlet side connector 50. The cap member 90 communicates the through hole 626 of the second modulator tank and the introduction flow path 502 of the inlet side connector 50.

  Even if it is such a structure, the effect | action and effect similar to the condenser 10 of said 3rd Embodiment can be acquired. Further, since the tip of the second modulator tank 62 can be extended to above the inlet connector 50, the capacity of the second modulator tank 62 can be increased.

<Other embodiments>
In addition, each embodiment can also be implemented with the following forms.
The structure of the venturi unit 501 can be changed as appropriate as long as it can suck the gas-phase refrigerant in the second modulator tank 62.

  -This indication is not limited to said specific example. Any of the above specific examples that are appropriately modified by those skilled in the art are also included in the scope of the present disclosure as long as they have the features of the present disclosure. Each element included in each of the specific examples described above, and the arrangement, conditions, shape, and the like thereof are not limited to those illustrated, and can be appropriately changed. Each element included in each of the specific examples described above can be appropriately combined as long as no technical contradiction occurs.

10: condenser 20: core portion 21: tube 40: first header tank 41: second header tank 50: inlet side connector 60: modulator tank 61: first modulator tank 62: second modulator tank 70: piping 80, 90 : Cap member 412b: Internal space 500: Refrigerant flow path 501: Venturi section 502: Introduction flow path 610: Internal space 620a: First internal space 620b: Second internal space 6211: Partition plate 622: Communication path

Claims (5)

A core portion (20) configured by a laminated structure of a plurality of tubes (21) through which the refrigerant flows, and radiating the refrigerant by heat exchange with an external fluid flowing outside the tubes;
A first header tank (40) and a second header tank (41) which are formed to extend in the stacking direction of the tubes and are respectively connected to both ends of the tube in the longitudinal direction of the tubes;
An inlet-side connector (50) to which a pipe for allowing a refrigerant to flow into the first header tank is connected;
A modulator tank (60) for separating the refrigerant flowing out of the second header tank into a liquid phase refrigerant and a gas phase refrigerant and storing the liquid phase refrigerant;
The modulator tank is
A first modulator tank (61) formed so as to extend in the stacking direction of the tubes, disposed adjacent to the second header tank, and communicated with the internal space (412b) of the second header tank;
A second modulator tank (62) formed to extend from the first modulator tank toward the first header tank and communicated with an internal space (610) of the first modulator tank;
The inlet side connector is
A refrigerant flow path (500) for allowing a refrigerant to flow from the pipe into the first header tank;
A venturi section (501) provided in the middle of the refrigerant flow path;
A condenser having an introduction flow path (502) for introducing a gas-phase refrigerant inside the second modulator tank into the venturi section; The second modulator tank is
A partition plate (621) that partitions the internal space into a first internal space (620a) and a second internal space (620b) in the longitudinal direction of the tube;
A communication path (622) that communicates the upper part of each of the first internal space and the second internal space in the vertical direction,
The second internal space is
The condenser according to claim 1, wherein the condenser communicates with the introduction flow path. The partition plate is
The condenser according to claim 2, wherein the condenser is provided at an end of the second modulator tank opposite to an end connected to the first modulator tank. A pipe (70) for connecting a vertical upper portion of the second modulator tank and the inlet side connector;
The piping is
The condenser according to claim 1 or 2, wherein the condenser is communicated with the introduction flow path. The cap member (80, 90), which is attached to the second modulator tank and the inlet side connector and guides the gas-phase refrigerant inside the second modulator tank to the introduction flow path. Condenser.

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