JP2015028394A - Liquid receiver and condenser integrated with liquid receiver - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a liquid receiver and a condenser integrated with the liquid receiver, capable of being miniaturized with a simple constitution.SOLUTION: A liquid receiver for separating a gas-liquid two-phase refrigerant flowing out from a condenser 2 of a refrigeration cycle, into a gas-phase refrigerant and a liquid-phase refrigerant, and storing the liquid-phase refrigerant, includes a cylindrical liquid receiving tank 31 opened at least at its one end, a female screw formation portion 32 formed into the cylindrical shape and having a female screw portion 323 on its inner peripheral face, and a cap 33 formed into the columnar shape, and having a male screw portion 331 inserted into the female screw formation portion 32, and engaged with the female screw portion 323. The female screw formation portion 32 has an inserting portion 321 inserted into the liquid receiving tank 31 and joined to an inner peripheral face of the liquid receiving tank 31, and a non-inserting portion 322 disposed outside of the liquid receiving tank 31, and the female screw portion 323 is disposed on the non-inserting portion 322.

Description

  The present invention relates to a liquid receiver that separates gas condensed from a refrigerant condensed in a refrigeration cycle and accumulates a liquid phase refrigerant, and a liquid receiver integrated condenser including the liquid receiver.

  2. Description of the Related Art Conventionally, a liquid receiver that separates the refrigerant flowing out of the condenser into gas-liquid two phases and stores the liquid-phase refrigerant has been proposed that includes a liquid receiver body, a female screw forming portion, and a cap ( For example, see Patent Document 1).

  The liquid receiver main body is a cylindrical container having one end opened. The female screw forming portion is a cylindrical member, and has a female screw portion formed on the inner peripheral surface on one end side (lower side) in the axial direction, and is fitted into the inner peripheral surface on the opening end side of the receiver body. It is brazed.

  The cap is a resin-made columnar member, and a male screw portion is formed on the outer peripheral surface on one end side (lower side) in the axial direction. And a cap is inserted inside a female screw formation part, and a female screw part and a male screw part are screwed together.

JP 2012-112539 A

  In recent years, in order to improve the mountability to a vehicle, it is desired to reduce the width of the condenser core. However, even if the thickness of the core part of the condenser is reduced, nothing is disposed on the front side or the rear side of the core part when the vehicle is mounted, as long as the size (diameter) of the liquid receiver remains the same. A space, a so-called dead space, is formed.

  On the other hand, it is conceivable to reduce the size of the entire liquid receiver. However, since the size of the female screw forming portion is limited by the outer diameter of the female screw portion, the liquid receiving portion into which the female screw forming portion is fitted is considered. The size of the vessel body is also restricted, and there is a problem that miniaturization is difficult. In addition, it is conceivable to form the female screw portion directly on the inner peripheral surface of the receiver body, but the thickness of the receiver body increases as much as the female screw portion is formed, and the processing cost increases. End up.

  An object of this invention is to provide the liquid receiver and liquid receiver integrated condenser which can achieve size reduction with a simple structure in view of the said point.

  In order to achieve the above object, according to the first aspect of the present invention, the gas-liquid two-phase refrigerant flowing out from the condenser (2) of the refrigeration cycle is separated into a gas-phase refrigerant and a liquid-phase refrigerant to store the liquid-phase refrigerant. In the liquid receiver, a cylindrical main body portion (31) having at least one end opened, and a female screw forming portion having a female screw portion (323) formed on the inner peripheral surface thereof, with a cylindrical shape. 32) and a cap (33) formed in a columnar shape and formed with a male screw portion (331) inserted into the female screw forming portion (32) and screwed into the female screw portion (323). The female screw forming portion (32) is inserted into the main body portion (31) and joined to the inner peripheral surface of the main body portion (31), and the external portion of the main body portion (31). A non-insertion part (322) to be arranged, and the female screw part (323) And it is provided on.

  According to this, the insertion part (321) inserted into the female screw forming part (32) inside the main body part (31) and joined to the inner peripheral surface of the main body part (31), and the main body part (31) The non-insertion part (322) disposed outside the main body part (31) is provided by providing the female screw part (323) in the non-insertion part (322). It is only necessary to change the shape of 321), and it is not necessary to change the shapes of the non-insertion portion (322) and the cap (33). Therefore, it is possible to reduce the size of the liquid receiver with a simple configuration.

  In addition, the code | symbol in the bracket | parenthesis of each means described in this column and the claim shows the correspondence with the specific means as described in embodiment mentioned later.

It is a front view of the liquid receiver integrated condenser concerning a 1st embodiment. It is sectional drawing which shows the liquid receiver in 1st Embodiment. It is III-III sectional drawing of FIG. It is sectional drawing which shows the liquid receiver in 2nd Embodiment. It is VV sectional drawing of FIG. It is sectional drawing which shows the liquid receiver in 3rd Embodiment. It is VII-VII sectional drawing of FIG. It is sectional drawing which shows the liquid receiver in 4th Embodiment. It is IX-IX sectional drawing of FIG. It is sectional drawing which shows the liquid receiver in 5th Embodiment.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In the following embodiments, the same or equivalent parts are denoted by the same reference numerals in the drawings.

(First embodiment)
Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. In the present embodiment, the receiver-integrated condenser 1 of the present invention is mounted on a vehicle refrigeration cycle apparatus. The receiver-integrated condenser 1 is a so-called subcool condenser that cools the refrigerant to a supercooling region by exchanging heat between the refrigerant and air.

  As shown in FIG. 1, a receiver-integrated condenser 1 includes a condenser 2 that heat-exchanges refrigerant and air to condense the refrigerant, and a liquid receiver 3 that stores the refrigerant flowing out of the condenser 2. It is configured.

  The condenser 2 is disposed on both ends of the tube 21 in the longitudinal direction and communicates with the plurality of tubes 21 by alternately laminating a plurality of tubes 21 and fins 22 through which refrigerant flows. It has a pair of header tanks 24, 25 and the like.

  The tube 21 constituting the core portion 23 is a flat tube through which a refrigerant flows, and the longitudinal direction thereof coincides with the air flow direction (perpendicular to the paper surface) and the longitudinal direction thereof coincides with the horizontal direction. In the direction, a plurality are arranged in parallel.

  The fins 22 are formed in a wave shape, and are joined to both flat surfaces of the tubes 21 between the plurality of tubes 21. These fins 22 increase the heat transfer area with air to promote heat exchange between the refrigerant and air.

  The pair of header tanks 24, 25 extend in the direction (vertical direction in FIG. 1) orthogonal to the longitudinal direction of the tube 21 at both longitudinal ends of the tube 21 and communicate with the plurality of tubes 21. The pair of header tanks 24, 25 are constituted by core plates 241, 251 to which the tube 21 is inserted and joined, and tank main body parts 242, 252 constituting a tank internal space together with the core plates 241, 251. In addition, as a pair of header tanks 24 and 25, you may employ | adopt what was formed in the substantially cylindrical shape by extrusion molding.

  The header tank 24 on the right side of the pair of header tanks 24, 25 (hereinafter referred to as the first header tank) is provided with a refrigerant inlet 243 at the upper end portion thereof, and the refrigerant outlet at the lower end portion thereof. A portion 244 is provided. Moreover, the 1st header tank 24 has the 1st partition plate 26 as a partition member arrange | positioned between the refrigerant | coolant inlet part 243 and the refrigerant | coolant outlet part 244 in the inside. The first partition plate 26 divides the internal space of the first header tank 24 into two.

  In the header tank 25 on the left side of the pair of header tanks 24 and 25 (hereinafter referred to as a second header tank), a second partition plate 27 as a partition member is a first inside the first header tank 24. It is arranged at the same height as the partition plate 26. The second partition plate 27 divides the tank internal space of the second header tank 25 into two.

  Of the core portion 23, the portion above the partition plates 26 and 27 of the pair of header tanks 24 and 25 causes heat exchange between the gas-phase refrigerant flowing from the refrigerant inlet portion 243 and the air, thereby condensing the refrigerant. The condensing part 23a to be configured is configured. On the other hand, the part below the partition plates 26 and 27 of the pair of header tanks 24 and 25 in the core portion 23 is supercooled to cool the liquid phase refrigerant by exchanging heat between the liquid phase refrigerant and air. Part 23b is configured. Thus, the core part 23 is a site | part which performs heat exchange between a refrigerant | coolant and air.

  The second header tank 25 has an outflow hole for allowing the condensed and liquefied refrigerant to flow out of the space in the second header tank 25 above the second partition plate 27 (the space communicating with the condensing part 23a). 253 is provided. In addition, the refrigerant flowing out of the liquid receiver 3 is allowed to flow into the second header tank 25 below the second partition plate 27 in the space in the second header tank 25 (a space communicating with the supercooling portion 23b). ) Is provided.

  Each member constituting the condenser 2 and a part of the member constituting the liquid receiver 3 are made of a metal material such as aluminum or aluminum alloy, temporarily assembled by a jig, and previously coated on the surface of each member. They are joined together by brazing material.

  As shown in FIGS. 2 and 3, the liquid receiver 3 separates the refrigerant flowing out from the condensing unit 23 a into a gas-phase refrigerant and a liquid-phase refrigerant. Then, after trapping foreign matter or the like in the refrigerant with a filter 34 to be described later, it functions as a gas-liquid separation means for supplying only the liquid-phase refrigerant to the supercooling portion 23b.

  The liquid receiver 3 is brazed and joined to the second header tank 25 of the pair of header tanks 24 and 25. Further, as shown in FIG. 2, the liquid receiver 3 includes a liquid receiver tank 31, a female thread forming portion 32, a cap 33, a filter 34, a desiccant 35, and the like.

  The liquid receiving tank 31 constitutes the main body of the liquid receiver 3 and is formed of a bottomed cylindrical tank that is open at one end in the longitudinal direction. The liquid receiving tank 31 is joined to the second header tank 25 so that the opening side is the lower side.

  On the outer peripheral surface of the liquid receiving tank 31, an inflow hole 311 is provided at a position corresponding to the outflow hole 253 of the second header tank 25. The space above the second header tank 25 and the liquid receiving tank 31 are provided. It is designed to communicate with the inside.

  The female screw forming portion 32 is a substantially cylindrical member for screwing a cap 33 described later. The female screw forming portion 32 is formed by a separate member with respect to the liquid receiving tank 31.

  The female screw forming portion 32 includes an insertion portion 321 that is inserted into the liquid receiving tank 31 and joined to the inner peripheral surface of the liquid receiving tank 31, and a non-insertion portion 322 that is disposed outside the liquid receiving tank 31. Have. In this embodiment, the insertion part 321 and the non-insertion part 322 are formed independently (as separate bodies).

  The insertion part 321 and the non-insertion part 322 are arranged on the same axis. That is, the cylinder axis of the insertion part 321 and the cylinder axis of the non-insertion part 322 are coincident. For this reason, the non-insertion part 322 and the liquid receiving tank 31 are arrange | positioned on the same axis line.

  A plurality of grooves extending in the circumferential direction are formed in the outer circumferential portion of the insertion portion 321 in the cylinder axis direction. The inner peripheral surface of the liquid receiving tank 31 and the outer peripheral surface of the insertion portion 321 (the convex surface in the plurality of grooves) are brazed and joined.

  On the inner peripheral surface of the non-insertion portion 322, a female screw portion 323 is formed in the vicinity of the end portion on the side close to the insertion portion 321 in the cylinder axis direction. Further, on the outer peripheral surface of the female screw forming portion 32, an outflow hole 324 is provided at a position corresponding to the inflow hole 254 of the second header tank 25, and the space below the second header tank 25 and the receiving hole are received. The liquid tank 31 communicates with the inside.

  The cap 33 is a substantially cylindrical lid member that closes the opening on the one end side of the female screw forming portion 32. The cap 33 is assembled to the non-insertion portion 322 of the female screw forming portion 32 after the insertion portion 321 of the female screw forming portion 32 is brazed and joined to the inner peripheral surface of the liquid receiving tank 31. It can be attached to and detached from the female screw forming portion 32.

  The cap 33 is made of a compressor lubricating oil that circulates in the refrigeration cycle together with the refrigerant and a resin excellent in deterioration resistance and heat resistance with respect to the refrigerant, such as nylon and polyester. The axial dimension of the cap 33 in the columnar shape is set slightly shorter than the dimension of the female screw forming portion 32 in the cylinder axis direction, and the female screw forming portion 32 and the cap 33 are mounted so as to substantially overlap in the axial direction. Yes.

  A male screw portion 331 that is screwed into the female screw portion 323 is formed in the vicinity of the end portion on the side close to the insertion portion 321 in the axial direction of the cap 33. Further, a seal portion (seal means) 332 that seals between the female screw forming portion 32 and the cap 33 is provided in the vicinity of the end portion of the cap 33 that is far from the insertion portion 321 in the axial direction. As the seal portion 332, for example, an O-ring groove for mounting an O-ring may be formed.

  Further, as the seal portion 332, a plurality of elastically deformable pleat-shaped pleat portions extending radially outward may be provided on the outer peripheral surface of the cap 33 in the axial direction. At this time, the radial dimension of the pleat portion is set to be larger than the gap between the outer peripheral surface of the cap 33 on which the pleat portion is formed and the inner peripheral surface of the female screw forming portion 32 opposed thereto. ing. Thereby, the front-end | tip part of a pleat part contacts the inner peripheral surface of the internal thread formation part 32 reliably with bending, and seals between the internal peripheral surface of the internal thread formation part 32 and the outer peripheral surface of the cap 33. can do.

  An internal flow path 333 is formed inside the cap 33. The internal flow path 333 passes through the inside of the cap 33 from the end of the cap 33 in the axial direction close to the insertion portion 321, and flows out from the space between the male screw portion 331 and the seal portion 332 to the female screw forming portion 32. 324 is a flow path communicating with 324. A circular flat plate-like filter 34 is disposed on the inlet side of the internal flow path 333 (the end near the insertion portion 321 in the axial direction of the cap 33).

  The filter 34 is formed of a resin material similar to that of the cap 33. The filter 34 is a member that captures foreign matters such as dust in the refrigerant passing through the fine mesh.

  The desiccant 35 is one in which granular zeolite for water absorption is accommodated inside the bag body, and absorbs moisture in the refrigerant. This is to prevent each functional component constituting the refrigeration cycle from being corroded by moisture in the refrigerant, or freezing in the pores of the expansion valve to stagnate the refrigerant flow. The desiccant 35 is accommodated in a space above the insertion portion 321 of the female screw forming portion 32 in the liquid receiving tank 31.

  As described above, the female screw forming portion 32 is disposed outside the liquid receiving tank 31 and the insertion portion 321 inserted into the liquid receiving tank 31 and joined to the inner peripheral surface of the liquid receiving tank 31. Even when the liquid receiving tank 31 is downsized by providing the non-insertion part 322 and the female screw part 323 in the non-insertion part 322, it is only necessary to change the shape of the insertion part 321. It is not necessary to change the shape of the cap 33 and the like. Therefore, it is possible to reduce the size of the liquid receiver 3 with a simple configuration. Specifically, the outer diameter of the liquid receiving tank 31 can be set to a dimension equal to or smaller than the outer diameter of the female screw forming portion 32.

  That is, the shape of the non-insertion portion 322 is restricted in order to form the female screw portion 323. On the other hand, since the female screw portion 323 is not formed in the insertion portion 321, the shape, size, and the like are not limited. Therefore, even when the liquid receiving tank 31 is downsized, it is only necessary to change the shape of the insertion portion 321 so as to correspond to the liquid receiving tank 31, and it is necessary to change the shapes of the non-insertion portion 322 and the cap 33. There is no.

  Furthermore, although the filter 34 is assembled to the cap 33, even when the liquid receiving tank 31 is downsized, it is not necessary to change the shape of the cap 33, so the shape of the filter 34 also needs to be changed. Absent. Therefore, it is not necessary to downsize the filter 34 in accordance with the downsizing of the liquid receiving tank 31, and therefore the performance of the filter 34 can be maintained.

  By the way, in the liquid receiving tank 31, when the inner diameter is D, the plate thickness is t, and the internal pressure is P, the tangential stress σ of the liquid receiving tank 31 is expressed by the following formula 1.

(Equation 1)
σ = P · D / 2t
When the tensile strength of the liquid receiving tank 31 is σmax, the breaking pressure Pmax of the liquid receiving tank 31 is expressed by the following formula 2.

(Equation 2)
Pmax = σmax · 2t / D
When the liquid receiving tank 31 is downsized, D in Formula 2 becomes small, and thus the breaking pressure Pmax increases. For this reason, the plate | board thickness t of the liquid receiving tank 31 can be reduced by the raise of the destructive pressure Pmax. That is, even if the plate thickness t of the liquid receiving tank 31 is reduced, the breaking pressure Pmax can be made the same as when the liquid receiving tank 31 is not downsized. By reducing the plate thickness t of the liquid receiving tank 31, it is possible to reduce the weight and to reduce the material cost.

  By the way, in the first header tank 24, the liquid receiver 3 is a tank internal space into which the refrigerant not passing through the tube 21 out of the two tank internal spaces divided by the first partition plate 26, that is, the refrigerant inlet portion. When the refrigerant from 243 is joined to a portion corresponding to the space in the tank into which the refrigerant directly flows, the heat of the refrigerant may be transmitted to the liquid receiver 3 and the liquid phase refrigerant in the liquid receiver 3 may be evaporated.

  On the other hand, in this embodiment, the liquid receiver 3 is joined to the second header tank 25 by brazing. That is, the liquid receiver 3 has a tank inner space (in this embodiment, 2 in the second header tank 25) into which the refrigerant that has passed through the tube 21 out of the two tank inner spaces divided by the second partition plate 27 flows. The two tank interior spaces) are joined to corresponding portions. Thereby, it can suppress that the liquid phase refrigerant | coolant in the liquid receiver 3 evaporates.

(Second Embodiment)
Next, a second embodiment of the present invention will be described with reference to FIGS. The second embodiment is different from the first embodiment in that a plurality of liquid receiving tanks 31 are provided.

  As shown in FIGS. 4 and 5, the liquid receiver 3 of the present embodiment includes two liquid receiving tanks 31. The female screw forming portion 32 has two insertion portions 321 that are the same number as the liquid receiving tank 31. Each of the insertion portions 321 is inserted into the liquid receiving tank 31 and is brazed and joined to the inner peripheral surface of the liquid receiving tank 31. The two liquid receiving tanks 31 communicate with each other through a communication unit (not shown).

  As described above, by providing the female screw portion 323 in the non-insertion portion 322, even when a plurality of liquid receiving tanks 31 are provided as in the present embodiment, the insertion portion 321 of the female screw formation portion 32 is provided. This can be dealt with by changing only the shape. For this reason, since it is not necessary to change the shapes of the non-insertion part 322, the cap 33, etc., manufacturing cost can be reduced.

(Third embodiment)
Next, a third embodiment of the present invention will be described with reference to FIGS. The third embodiment is different from the first embodiment in that the internal space of the liquid receiving tank 31 is partitioned (divided) into a plurality of parts.

  As shown in FIGS. 6 and 7, in the liquid receiving tank 31, a partition member 313 that partitions the internal space of the liquid receiving tank 31 into two small spaces 312 in a direction perpendicular to the cylindrical axis direction, that is, in the radial direction. Is provided. The partition member 313 extends in the cylinder axis direction. The two small spaces 312 are arranged side by side in a direction perpendicular to the cylinder axis direction.

  In the present embodiment, the partition member 313 is formed in a plate shape that passes through the cylinder axis of the liquid receiving tank 31. Further, the partition member 313 is formed integrally with the liquid receiving tank 31. The two small spaces 312 are formed in an equivalent shape, specifically, a substantially half moon shape. The two small spaces 312 communicate with each other through a communication hole (not shown) formed in the partition member 313.

  The female screw forming portion 32 has two insertion portions 321 that are the same number as the small space 312. Each of the insertion portions 321 is inserted into the small space 312 and joined to the inner peripheral surface of the liquid receiving tank 31 and the partition member 313.

  As described above, by providing the female screw portion 323 in the non-insertion portion 322, even when the partition member 313 is provided inside the liquid receiving tank 31 as in the present embodiment, the female screw forming portion 32 is provided. This can be dealt with by changing only the shape of the insertion portion 321. For this reason, since it is not necessary to change the shapes of the non-insertion part 322, the cap 33, etc., manufacturing cost can be reduced.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described with reference to FIGS. The fourth embodiment is different from the first embodiment in the installation position of the liquid receiving tank 31 with respect to the non-insertion portion 322 of the female screw forming portion 32.

  As shown in FIGS. 8 and 9, the insertion portion 321 and the non-insertion portion 322 are not arranged on the same axis. That is, the cylinder axis of the insertion part 321 and the cylinder axis of the non-insertion part 322 are arranged at different positions.

  Specifically, the insertion portion 321 is disposed on the side close to the outflow hole 324, that is, on the side close to the second header tank 25 with respect to the cylinder axis of the non-insertion portion 322. Therefore, the liquid receiving tank 31 is disposed on the side close to the second header tank 25 with respect to the cylinder shaft of the non-insertion portion 322.

  As described above, by providing the female screw portion 323 in the non-insertion portion 322, even if the arrangement of the liquid receiving tank 31 is changed as in this embodiment, the insertion portion of the female screw formation portion 32 is inserted. This can be dealt with by changing only the shape of 321. For this reason, since it is not necessary to change the shapes of the non-insertion part 322, the cap 33, etc., manufacturing cost can be reduced.

(Fifth embodiment)
Next, a fifth embodiment of the present invention will be described with reference to FIG. The fifth embodiment differs from the first embodiment in the shapes of the liquid receiving tank 31 and the insertion portion 321. Specifically, as shown in FIG. 10, the liquid receiving tank 31 and the insertion portion 321 are formed in a rectangular tube shape.

  Conventionally, since it is necessary to screw the male screw portion 331 of the cap 33 into the female screw portion 323 of the female screw forming portion 32, the female screw forming portion 32 needs to be formed in a substantially cylindrical shape, and the female screw forming portion The liquid receiving tank 31 to which 32 is joined also has to be formed in a substantially cylindrical shape.

  On the other hand, in the present embodiment, the female screw forming portion 32 is configured to include an insertion portion 321 joined to the liquid receiving tank 31 and a non-insertion portion 322 where the female screw portion 323 is formed. Therefore, the shape of the insertion portion 321 and the liquid receiving tank 31 is eliminated. Therefore, as in the present embodiment, the insertion portion 321 and the liquid receiving tank 31 can be formed in a rectangular tube shape. In addition, you may form the insertion part 321 and the liquid receiving tank 31 in hollow cylinder shapes, such as a triangular cylinder shape.

(Other embodiments)
The present invention is not limited to the above-described embodiment, and can be variously modified as follows without departing from the spirit of the present invention.

  (1) In each of the above-described embodiments, the liquid receiver integrated condenser 1 in which the condenser 2 and the liquid receiver 3 are integrally formed has been described. However, the condenser 2 and the liquid receiver 3 are separately provided. The present invention may be applied to the liquid receiver 3 when formed.

  (2) In each of the above embodiments, the condenser 2 has been described as including the condensing unit 23a and the supercooling unit 23b in the core unit 23, but may be applied to a unit including only the condensing unit 23a. In this case, the liquid phase refrigerant separated from the gas and liquid in the liquid receiver 3 may flow out to the expansion valve of the refrigeration cycle.

  (3) In the second embodiment, the example in which two liquid receiving tanks 31 are provided has been described. However, the present invention is not limited to this, and three or more liquid receiving tanks 31 may be provided. In this case, it is only necessary to provide the female screw forming portion 32 with the same number of insertion portions 321 as the liquid receiving tank 31.

2 Condenser 31 Receiving tank (main part)
32 Female thread forming part 33 Cap 321 Insertion part 322 Non-insertion part 323 Female thread part 331 Male thread part

Claims (10)

A liquid receiver for separating the gas-liquid two-phase refrigerant flowing out of the condenser (2) of the refrigeration cycle into a gas-phase refrigerant and a liquid-phase refrigerant and storing the liquid-phase refrigerant;
A cylindrical main body (31) having at least one end opened;
A female screw forming portion (32) formed in a cylindrical shape and having a female screw portion (323) formed on the inner peripheral surface;
A cap (33) formed in a columnar shape and formed with a male screw portion (331) inserted into the female screw forming portion (32) and screwed into the female screw portion (323);
The female screw forming portion (32) is inserted into the main body portion (31) and joined to the inner peripheral surface of the main body portion (31), and the main body portion (31). A non-insertion part (322) arranged outside,
The liquid receiver, wherein the female screw portion (323) is provided in the non-insertion portion (322). The cap (33) is made of resin, and is assembled to the female screw forming portion (32) after the insertion portion (321) is brazed to the inner peripheral surface of the main body portion (31).
The liquid receiver according to claim 1, wherein the cap (33) is detachable from the female screw forming portion (32).   The liquid receiver according to claim 1, wherein the female screw forming portion (32) has a plurality of insertion portions (321).   The liquid receiver according to claim 3, wherein at least one of the plurality of insertion portions (321) has a shape different from that of the other insertion portion (321). A plurality of the main body portions (31) are provided,
The female screw forming portion (32) has the same number of the insertion portions (321) as the plurality of main body portions (31),
The liquid receiver according to any one of claims 1 to 4, wherein each of the insertion portions (321) is joined to an inner peripheral surface of the main body portion (31). The main body (31) has a partition member (313) that partitions the internal space of the main body (31) into a plurality of small spaces (312) in a direction perpendicular to the cylinder axis direction of the main body (31). And
The female screw forming portion (32) has the same number of the insertion portions (321) as the plurality of small spaces (312),
Each of the insertion portions (321) is inserted into the small space (312), and is joined to at least one of the inner peripheral surface of the main body portion (31) and the partition member (313). The liquid receiver according to any one of claims 1 to 4.   The said cap (33) has the sealing means (322) which seals between the said cap (33) and the said internal thread formation part (32), The one of Claim 1 thru | or 6 characterized by the above-mentioned. The liquid receiver according to one.   The liquid receiver according to any one of claims 1 to 7, wherein an outer diameter of the main body portion (31) is a dimension equal to or smaller than an outer diameter of the female screw forming portion (32).   A liquid receiver (3) according to any one of claims 1 to 8, wherein the liquid receiver (3) is integrally brazed to the condenser (2). The condenser (2)
A plurality of tubes (21) through which refrigerant flows;
A pair of header tanks (24, 24) disposed at both longitudinal ends of the tube (21) and extending in a direction perpendicular to the longitudinal direction of the tube (21) and communicating with the plurality of tubes (21). 25)
The header tank (24, 25) has a partition member (26, 27) that divides the space in the header tank (24, 25) into a plurality of tank internal spaces,
The liquid receiver (3) is joined to a portion of the header tanks (24, 25) corresponding to a tank internal space into which the refrigerant that has passed through the tube (21) flows out of the plurality of tank internal spaces. The receiver-integrated condenser according to claim 9, wherein the condenser is an integrated receiver.

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