JP2005315501A - Heat exchanger with liquid receiver - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To reduce component members and cost by suppressing the thermal effect on a filter and a desiccant. <P>SOLUTION: This heat exchanger with a liquid receiver comprises a pair of aluminum header pipes 2a and 2b, an aluminum condenser body 1 having a plurality of heat exchange tubes 3 installed across both header pipes parallel with each other, an aluminum tubular liquid receiver body 11 brazed to the header pipe, and the desiccant 50 and the filter 30 inserted into the liquid receiver body. The filter comprises a filter body 40 charged with the desiccant and a flange part 45 of a low heat conductive material which is projectedly installed on the outer periphery of the filter body and brought into contact with the inner wall of the liquid receiver body, and is fixed to the inside of the liquid receiver body at a clearance. A bottom cap 13 is fixedly brazed to the opening part of the liquid receiver body. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a heat exchanger with a liquid receiver, and more particularly, to a heat exchanger with a liquid receiver made of aluminum incorporated in an air conditioning facility installed in an automobile, for example. Here, aluminum is meant to include aluminum or an aluminum alloy.

  Conventionally, this type of heat exchanger includes a pair of substantially cylindrical header pipes each made of aluminum, a plurality of parallel heat exchange pipes installed between the header pipes, and between adjacent heat exchange pipes. In general, a heat exchanger main body having fins interposed between and a substantially cylindrical liquid receiver main body made of aluminum are connected and fixed by brazing.

  Conventionally, the receiver body is filled with a desiccant such as silica gel in order to remove moisture in the refrigerant sealed in the heat exchanger. Furthermore, when the receiver is high in moisture in the refrigerant and the performance of these desiccants deteriorates, the built-in parts such as the desiccant and the filter in the receiver body can be replaced with new desiccants. A removable plug (cover) is attached to the opening of the liquid receiver body (see, for example, Patent Document 1).

In addition, since the frequency of replacement of built-in parts is extremely low, if there is a need for replacement, brazing the cap that closes the opening of the receiver body from the viewpoint of replacing the entire heat exchanger. Also known is the structure performed by.
JP 2000-292030 (Claims, FIG. 1)

  However, in the former, that is, the one described in Japanese Patent Application Laid-Open No. 2000-292030, some kind of sealing method is required in order to make the lid replaceable. Although an O-ring is generally used as a sealing method, refrigerant leakage may occur due to scratches or aging of the O-ring. In addition, since there is a gap at the boundary between the lid and the receiver body, internal corrosion may occur due to the intrusion of the corrosive liquid. In addition, if the lid is replaceable and the structure in which the component insertion part of the liquid receiver is enlarged for cost reduction, the structure must be separated from the main body of the heat exchanger. In addition, when the installation space is limited, there is a problem that the heat exchange effective part decreases.

  On the other hand, in the latter case, that is, a structure in which a cap is brazed to the opening of the receiver body, (a) a desiccant or the like is inserted into the receiver body in advance and brazed in the furnace together with the heat exchanger body. And (b) first manufacturing (brazing) the receiver body and the heat exchanger body, and then inserting a built-in product such as a desiccant, and then cap the opening in the receiver body There is a method to attach.

  Among these, in the method (a), residual moisture contained in the desiccant evaporates as the temperature rises in the brazing furnace, adversely affecting the brazing state of the product. Therefore, it is necessary to perform brazing after completely evaporating the residual moisture in the desiccant in the drying stage before entering the brazing furnace, but both ends of the receiver are in a sealed state. Therefore, it is impossible to remove moisture quickly. Therefore, the water remaining in the receiver is transported to the brazing stage, where it evaporates from relatively loosely fitted parts such as the piercing part of the heat exchanger and the attachment part to the header pipe of the receiver. As a result, it has an adverse effect on brazing. In order to prevent this, it is necessary to make the preheating process for removing moisture significantly longer than that of a normal heat exchanger, which causes a problem of reducing productivity. In this method, even if it is possible to remove the residual moisture of the desiccant before the brazing step, the built-in parts are limited to metal parts that can withstand the temperature during brazing (about 600 ° C.). .

  On the other hand, in the method (b), as in the above (a), the residual moisture contained in the desiccant evaporates as the temperature rises in the brazing furnace and adversely affects the brazing state of the product. There is no. In addition, after brazing the heat exchanger body and the receiver body, by inserting a built-in product such as a desiccant into the receiver body and brazing the cap, partial heating, The temperature to which the built-in parts are exposed can also be much lower than 600 ° C. However, the problem of being limited to parts that can withstand high temperatures remains. At present, in the case of a replacement method for built-in parts, the filter and the desiccant bag are generally made of plastic members. However, in this method, plastic cannot be used, and the filter (specifically, the main body and the mesh) and the desiccant bag are limited to metals such as stainless steel, which greatly increases the cost. Unavoidable.

  The present invention has been made in view of the above circumstances, suppresses the thermal influence on the built-in components such as the filter and the desiccant, and in the state where the built-in component is inserted into the receiver body. It is an object of the present invention to provide a heat exchanger with a liquid receiver that can simultaneously braze a cap to an opening so as to reduce the number of constituent members and reduce the cost.

  In order to solve the above-mentioned problems, the present invention provides a heat exchanger having a pair of header pipes each formed of an aluminum member and a plurality of heat exchange pipes laid in parallel between the header pipes. A heat exchanger with a receiver, comprising: a main body; an aluminum tubular receiver body that is brazed to the header pipe; and a desiccant and a filter that are inserted into the receiver body. The filter comprises: a filter main body filled with the desiccant; and a flange made of a low thermal conductivity material that protrudes from the outer periphery of the filter main body and contacts the inner wall of the receiver body. And is fixed in the receiver body with a gap, and a cap is brazed to the opening of the receiver body (Claim 1).

  In this invention, a gap can be provided between the cap brazed to the opening of the liquid receiver body and the filter to form a heat insulating layer of air (claim 2).

  In addition, a heat insulating member that contacts the other may be provided on either the cap or the filter that is brazed to the opening of the receiver body. In this case, the lid body and the heat insulating member attached to the filter main body constituting the filter may be integrally formed (Claim 4), or the cap and the heat insulating member may be integrally formed. (Claim 5).

  In addition, a cap that is brazed to the opening of the receiver body may be formed of a heat insulating member, and a raised portion that contacts the filter may be formed on the cap.

  (1) According to the first aspect of the present invention, the filter is formed by abutting the flange portion made of a low thermal conductivity material projecting on the outer periphery of the filter body filled with the desiccant with the inner wall of the receiver body. A cap is brazed to the opening of the liquid receiver body in a state where the liquid receiver body is fixed with a gap. Since the cap is brazed to the opening of the receiver body after the heat exchanger body and the receiver body are brazed in the furnace, the thermal influence on the filter and the desiccant can be suppressed. Therefore, it is possible to easily manufacture the heat exchanger with a liquid receiver, and to improve productivity and product reliability.

  In addition, since the filter and the desiccant are integrated, the number of components can be reduced and the cost can be reduced.

  Also, since the filter body and the desiccant are inserted into the receiver body with the desiccant filled (enclosed) in the filter body, the desiccant is supplied to the outlet and the heat exchanger to the receiver. The heat medium that has flowed into the receiver is not passed through the desiccant and flows out to the subcooling section of the heat exchanger, even if the operating conditions fluctuate. The heat medium can always pass through the desiccant. Therefore, moisture in the system can be reliably adsorbed by the desiccant, and the reliability of the heat exchanger can be improved.

  (2) According to the inventions of claims 2, 3, 4, 5, and 6, by interposing a heat insulating layer or a heat insulating member between the cap and the filter main body, heat from the cap to the filter main body side can be obtained. Since conduction can be suppressed, in addition to the above (1), thermal effects on the filter and the desiccant can be further suppressed.

  Below, the best embodiment of the heat exchanger with a liquid receiver according to the present invention will be described in detail.

  FIG. 1 is a front view showing an example of a heat exchanger with a liquid receiver according to the present invention (a) and a plan view (b) showing an essential part of (a), and FIG. 2 is an essential part of the heat exchanger. It is an expanded sectional view (b) of the A section of expanded sectional view (a) and (a).

  As shown in FIG. 1, the condenser (condenser) as the heat exchanger is a plurality of header pipes 2 a and 2 b each made of aluminum, and a plurality of condensers that are installed in parallel between the header pipes 2 a and 2 b. The heat exchanger main body 1 (hereinafter referred to as the capacitor main body 1) includes a heat exchanging pipe 3 and a heat exchanging fin, for example, a corrugated fin 4, which are interposed between the heat exchanging pipes 3 and joined together. And a liquid receiver 10 having a liquid receiver body 11 made of aluminum. In this case, a built-in component 30 in which a filter body 40 and a desiccant 50 described later are integrated is inserted into the liquid receiver body 11. The capacitor body 1 and the receiver body 11 are integrally brazed via an aluminum connecting member 60.

  The header pipes 2a and 2b are formed, for example, in a substantially cylindrical shape by an aluminum extruded shape, and an aluminum end cap 5 is fixedly attached to the upper and lower ends thereof by brazing. Also, a high-temperature heat medium inlet 2c is provided, for example, near the upper end of the outer side of one header pipe 2a (left side in FIG. 1), and the outer side of the other header pipe 2b (right side in FIG. 1). A heat medium outlet 2d is provided near the lower end of the side. Further, as shown in FIG. 2, the side surface of the header pipe 2a has an outflow hole 9a and an inflow hole 9b constituting communication ports for outflow and inflow of the heat medium in order to communicate with the liquid receiver 10. The liquid receiver 10 is integrally brazed to the header pipe 2a through the connecting member 60 so as to communicate with the outflow hole 9a and the inflow hole 9b.

  In addition, a partition plate 2e is disposed at approximately one third of the upper portion of the header pipe 2a, and a partition plate 2f is provided between the outflow hole 9a side and the inflow hole 9b side. A partition plate 2g is disposed at a position corresponding to the lower partition plate 2f in the header pipe 2b.

  In this way, by arranging the partition plates 2e, 2f, 2g in the header pipes 2a, 2b, the high-temperature and high-pressure heat medium flowing into the header pipe 2a from the inflow hole 2c is overheated 1A above the partition plate 2e. It flows in the heat exchange pipe 3 in the (high temperature region) and flows into the header pipe 2b. At this time, heat exchange is performed in a gaseous state, and the temperature of the heat medium drops. The heat medium that has flowed into the header pipe 2b flows through the heat exchange pipe 3 in the condensation zone 1B (gas-liquid two-phase zone) between the partition plates 2e, 2f, and 2g, and then flows into the header pipe 2a again. At this time, heat exchange of latent heat is performed, and the state changes from a 100% gas state to a 100% liquid state. In this region, there is no temperature change accompanying the phase change. The liquid heat medium that has flowed into the header pipe 2a flows into the receiver body 11 through the outflow hole 9a and is separated into gas and liquid by the liquid receiver 10, and then the liquid heat medium passes through the inflow hole 9b. Through the heat exchanger pipe 3 in the subcooling zone 1C (subcool zone) below the partition plates 2f, 2g, and into the header pipe 2b. At this time, the heat medium undergoes heat exchange in a liquid state, and the temperature drops.

  Further, as shown in FIG. 1A, the heat exchange tube 3 is formed, for example, in a flat plate shape with an extruded shape made of aluminum, and a plurality of the heat exchange tubes 3 penetrates in the longitudinal direction in the inside thereof. A partitioned heat medium flow path (not shown) is formed. Both ends of the heat exchange pipe 3 formed in this way are inserted and fixed in a plurality of slits (not shown) arranged in parallel with each other on the opposite sides of the side surfaces of both header pipes 2a and 2b. Has been.

  As shown in FIG. 1A, the heat exchange fins, that is, the corrugated fins 4 are formed in a continuous wave shape by bending an aluminum plate, and are interposed between the heat exchange tubes 3. It is brazed. In this case, the corrugated fins 4 are also brazed and joined to the outer sides of the heat exchange pipes 3 disposed at the uppermost and lowermost stages, and both the corrugated fins 4 are protected in order to protect the corrugated fins 4. Further, the side plate 4a is brazed and joined to the outer side.

  As shown in FIG. 2, the liquid receiver 10 includes, for example, a cylindrical liquid receiver body 11 formed of an extruded shape member made of aluminum, and an upper and lower opening 11 a of the liquid receiver body 11. The upper cap 12 and the lower cap 13 made of aluminum are respectively closed and fixed by brazing.

  Further, as shown in FIG. 2, the receiver body 11 has an outlet 21 communicating with the outlet hole 9a of the header pipe 2a at a position above the partition plate 2f in the header pipe 2a. . In addition, an inflow port 22 is formed at a position that coincides with the inflow hole 9b of the header pipe 2a on the lower side of the partition plate 2f in the header pipe 2a.

  In the receiver body 11 formed as described above, a built-in component 30 (hereinafter referred to as a filter 30) in which a desiccant 50 such as a molecular sieve is filled in the filter body 40 is inserted (FIGS. 2 and 6). reference).

  As shown in FIGS. 4 and 5, the filter 30 is formed of a synthetic resin made of nylon, for example, and has a bottomed cylindrical filter body 40 provided with a window hole 41 at an appropriate position on the outer periphery. A synthetic resin mesh 42 made of nylon, for example, disposed on the inner peripheral surface, a desiccant 50 such as a molecular sieve filled (enclosed) in the mesh 42 of the filter body 40, and an opening 43 of the filter body 40. And a lid portion 45 made of a low thermal conductivity material, such as stainless steel, projecting annularly on the outer periphery of the filter body 40 and abutting against the inner wall of the receiver body 11. In this case, as shown in FIGS. 2 (b) and 6, the flange portion 45 includes a donut disc portion 46 bonded to the outer periphery of the filter body 40 and an annular suspension depending on the outer periphery of the donut disc portion 46. It is formed with a piece 47. Thus, by forming the flange portion 45 with the donut disc portion 46 and the annular hanging piece 47, the heat conduction from the liquid receiver body 11 can be reduced as much as possible, and the filter 30 can be received. Fixation in the liquid container body 11 can be stabilized. The filter main body 40 is not necessarily formed in a bottomed cylindrical shape, but may be formed in a cylindrical shape instead of being formed in a bottomed cylindrical shape so that the upper and lower openings 43 close the lid body 44.

  In order to assemble the liquid receiver 10 configured as described above, the capacitor main body 1 and the liquid receiver main body 11 are assembled through the connecting member 60 and fixed by brazing, and then the filter is placed in the liquid receiver main body 11. The filter 30 in which the main body 40 and the desiccant 50 are integrated is inserted, and the flange 45 is brought into contact with and fixed to the inner wall of the receiver body 11. In this case, the lower end of the filter 30 is fixed to the inner side of the lower opening 11 a of the receiver body 11. And the lower cap 13 is obstruct | occluded in the opening part 11a of the lower part of the liquid receiver main body 11, and it fixes by torch brazing, for example. At the time of brazing, the filter 30 is in contact with the liquid receiver body 11 only by the stainless steel flange 45 which is a low thermal conductivity material, and a gap 14 is provided between the lower cap 13 and the air. Since the heat insulation layer is formed, heat transfer during brazing can be suppressed. Therefore, the filter body 40 and the desiccant 50 are not likely to be adversely affected by the heat during brazing.

  Further, since the filter 30 composed of the filter body 40 and the desiccant 50 is inserted into the receiver body 11 in a state where the desiccant 50 is filled (enclosed) in the filter body 40, the desiccant 50 is received by the liquid receiver. The structure is located between the outlet 21 to the vessel 10 and the inlet 22 to the condenser. Accordingly, since the heat medium flowing into the receiver 10 does not pass through the desiccant 50 and flows out to the supercooling C (subcool zone) of the condenser, the heat is always kept in the desiccant even if the operating conditions fluctuate. The medium can pass through. Thereby, the moisture in the system is surely adsorbed by the desiccant 50.

  As shown in FIGS. 2 and 3, the connecting member 60 is in contact with the joining surface of the header pipe 2a and the plate-like member 6 is in contact with the joining surface of the receiver body 11, and the plate-like member. 6 and is connected to the communication port for outflow and inflow of the heat medium provided in the header pipe 2a and the receiver body 11, that is, the outflow hole 9a, the outflow port 21 and the inflow port 9b, and the inflow port 22. A possible outflow pipe member 71 (outflow communication portion) and an inflow pipe member 72 (inflow communication portion) are formed.

  The plate-like member 6 has two header pipe-side joining surfaces 61 and 63 (hereinafter referred to as first and third joints) having a circular arc shape in contact with the joining surface of the header pipe 2a on one side surface of a substantially flat base 60a. Of the liquid receiver body-side joint surfaces 62 and 64 (hereinafter referred to as the second and second joint surfaces) that contact the intermediate cylinder surface of the liquid receiver body 11 on the other side surface of the base 60a. 4 joint surfaces 62 and 64). In this case, the fourth joint surface 64 is provided with two through holes 6a and 6b for fitting the pipe members 71 and 72 between the two through holes 6a and 6b. A long hole-like through hole 65 is provided for avoiding interference with the partition plate 2f in the header pipe 2a. Further, between the first joint surface 61 and the second joint surface 62, between the second joint surface 62 and the third joint surface 63, and between the third joint surface 63 and the fourth joint surface 64. Are bent in opposite directions with a notch 66 provided on both sides of the base 60a as a boundary.

  In this case, the two through holes 6a and 6b drilled in the fourth joint surface 64 are formed with a tapered portion 6c in which the joint surface side with the liquid receiver body 11 expands outward. (See FIG. 3D).

  One pipe member 71 of the pipe members 71 and 72 is on the third joint surface 63 side of the plate-like member 6 in the fourth joint surface 64 of the plate-like member 6, that is, the outflow hole 9a and the liquid receiving portion of the header pipe 2a. The pipe body for outflow is formed by fitting in the first through-hole 6a drilled on the side communicating with the outlet 21 of the vessel main body 11. The other pipe member 72 is in the second through-hole 6b drilled on the leading end side of the plate-like member 6, that is, the side communicating with the inlet port 9b of the header pipe 2a and the inlet 22 of the receiver body 11. To form an inflow pipe portion. The pipe members 71 and 72 are formed at the end of the cylindrical base 73 that can be fitted into the outflow hole 9a or the inflow hole 9b provided in the header pipe 2a and the other end of the cylindrical base 73. The diameter portion is expanded outwardly, and is formed by an enlarged opening portion 74 that contacts the outlet 21 or the inlet 22 provided in the receiver body 11. In the pipe members 71 and 72 formed in this way, the cylindrical base portion 73 is fitted into the through holes 6a and 6b, and the enlarged diameter opening portion 74 is caulked to the tapered portion 6c formed in the through holes 6a and 6b. The plate member 6 is fixed by being coupled. In this case, it is preferable to form at least one of the plate-like member 6 or the pipe members 71 and 72 with a clad material to which a brazing material is applied.

  Next, the assembly procedure of the heat exchanger with a liquid receiver will be described. First, the end caps 5 are press-fitted into the upper and lower ends of the header pipes 2a and 2b, respectively, and the upper cap 12 is press-fitted into the opening 11a at one end (upper end side) of the liquid receiver body 11.

  Next, the heat exchange fins 4, the heat exchange pipe 3, the other header pipe 2b, the liquid receiver 10, and the connecting member 60 are assembled to the header pipe 2a, fixed with a jig (not shown), and temporarily assembled. .

  After the flux is applied to the capacitor body 1, the receiver body 11 and the connecting member 60 temporarily assembled as described above, the capacitor body 1, the receiver body 11 and the connecting member 60 are accommodated in a furnace (not shown). Then, the capacitor body 1, the receiver body 11 and the connecting member 60 are integrally brazed by heating at a predetermined temperature, for example, 600 ° C.

  Next, the filter 30 in which the desiccant 50 is filled (enclosed) in the filter body 40 through the mesh 42 is inserted into the receiver body 11 integrally brazed to the capacitor body 1. At this time, the filter 30 is inserted inward from the opening 11 a at the lower end, and the flange 45 is brought into contact with the inner wall of the receiver body 11 to fix the filter 30 in the receiver body 11 with a gap 14. To do. Then, the lower cap 13 is press-fitted into the opening 11a on the lower end side of the receiver body 11 and fixed by torch brazing, and the assembly of the heat exchanger with receiver is completed. Although the temperature becomes high during brazing of the torch, the receiver body 11 and the filter 30 are in contact with each other only through the flange portion 45 made of a low thermal conductivity material, and the other portions are provided with a heat insulating air layer. The thermal influence on the filter 30, that is, the filter main body 40 and the desiccant 50 can be suppressed, and damage to the filter main body 40 and the desiccant 50 due to heat can be prevented.

  In the above embodiment, the case where the gap 14 is provided between the filter body 40 inserted into the receiver body 11 and the lower cap 13 to form the heat insulation layer has been described. As shown in FIG. 8, a heat insulating member 15 made of a low thermal conductivity material such as stainless steel is protruded from either the lower cap 13 or the filter main body 40 so as to contact the other, and the filter main body 40, The filter 30 may be supported. In this case, the heat insulating member 15 is formed integrally with the lid 44 attached to the filter main body 40 as shown in FIG. 7B, or the lower portion as shown in FIG. 8B. The heat insulating member 15 is integrated with the cap 13 by pressure bonding. The heat insulating member 15 may be set separately and the heat insulating member 15 may be set when the filter is set. As shown in FIG. 9, the lower cap 13A may be formed of a heat insulating member such as a stainless steel member, and the raised portion 16 that contacts the filter may be formed integrally with the lower cap 13A. In this case, the lower cap 13A has an annular base portion 13a fitted to the opening portion 11a of the receiver body 11, and the raised portion 16 has a circular flat surface 16a that contacts the bottom surface of the filter body 40, and The outer surface of the flat surface 16a is formed with a skirt portion 16b that connects the annular base portion 13a. By forming the lower cap 13A in this manner, heat conduction to the filter when the lower cap 13A is brazed can be reduced.

  7 to 9, the other parts are the same as those in the first embodiment, so the same parts are denoted by the same reference numerals and description thereof is omitted.

It is the front view (a) and principal part enlarged plan view (b) which show an example of the heat exchanger with a receiver concerning this invention. It is principal part sectional drawing (a) which shows the brazing part of the header pipe and liquid receiver in this invention, and the A section expanded sectional view (b) of (a). The top view (a) of an example of the connection member in this invention, sectional drawing (b) which follows the II line | wire of (a), enlarged side view (c), and the principal part expanded sectional view (d) of (b) is there. It is a perspective view (b) of the perspective view (a) of the filter in this invention, and B arrow of (a). It is sectional drawing of the filter of the state filled with the desiccant in this invention. It is sectional drawing which shows the state which inserted the said filter in the receiver body. It is sectional drawing (a) which shows another state which inserted the said filter in the liquid receiver main body, and the partial cross section side view (b) which shows the state of the heat insulation member in this invention, and a cover body. It is sectional drawing (a) which shows another state which inserted the said filter in the liquid receiver main body, and the partial cross section side view (b) which shows the state of the heat insulation member and cap in this invention. It is sectional drawing (a) which shows another state which inserted the said filter in the receiver body, and sectional drawing (b) of the cap in this invention.

Explanation of symbols

1 Capacitor body (heat exchanger body)
2a, 2b Header pipe 3 Heat exchange tube 4 Fin 10 Receiving device 11 Receiving device main body 11a Opening portion 13 and 13A Lower cap 14 Clearance 15 Heat insulating member 16 Raised portion 30 Filter 40 Filter main body 44 Cover body 45 Eave portion 50 Desiccant

Claims (6)

A heat exchanger body having a pair of header pipes each formed of an aluminum member and a plurality of heat exchange pipes laid in parallel between the header pipes, and aluminum brazed to the header pipes A tubular heat exchanger main body, a desiccant and a filter inserted into the liquid receiver main body, and a heat exchanger with a liquid receiver,
The filter includes a filter main body filled with the desiccant, and a flange made of a low thermal conductivity material that protrudes from the outer periphery of the filter main body and contacts the inner wall of the receiver body. , Fixed in the receiver body with a gap,
A heat exchanger with a liquid receiver, wherein a cap is brazed to the opening of the liquid receiver body. The heat exchanger with a receiver according to claim 1,
A heat exchanger with a liquid receiver, wherein a gap is provided between the cap brazed to the opening of the liquid receiver body and the filter to form a heat insulating layer of air. The heat exchanger with a receiver according to claim 1,
A heat exchanger with a liquid receiver, characterized in that either one of a cap or a filter brazed to the opening of the liquid receiver body is provided with a heat insulating member in contact with the other. In the heat exchanger with a receiver according to claim 3,
A heat exchanger with a liquid receiver, wherein a lid body and a heat insulating member attached to a filter body constituting the filter are integrally formed. In the heat exchanger with a receiver according to claim 3,
A heat exchanger with a liquid receiver, wherein the cap and the heat insulating member are integrally formed. In the heat exchanger with a receiver according to claim 1,
A heat exchanger with a liquid receiver, characterized in that a cap to be brazed to the opening of the liquid receiver body is formed of a heat insulating member, and a raised portion that contacts the filter is formed on the cap. vessel.

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