Receiver drier integrated water cooled condenser

Abstract

A water-cooled condenser integrated with a receiver dryer according to an embodiment of the present invention comprises: a condensing section in which a refrigerant and a cooling water flow alternately to condense the refrigerant; a subcooling section in which a refrigerant and a cooling water flow alternately to subcool the refrigerant; and a connecting section interposed between the condensing section and the subcooling section to form a movement path for each of the refrigerant and the cooling water, wherein the connecting section comprises: a first plate having a first processing section formed thereon; and a second plate coupled to the first plate and having a second processing section corresponding to the first processing section formed thereon, and when the first plate and the second plate are coupled, a refrigerant storage space is formed by the first processing section and the second processing section.

Description

Technology Field

[0001] The present invention relates to a water-cooled condenser with an integrated receiver dryer. Background Technology

[0002] A heat exchanger is a device developed to exchange heat between two or more transfer fluids for the purpose of cooling or heating, and is applied in vehicle heating and cooling systems, refrigerators, air conditioners, etc.

[0003] A condenser is a type of heat exchanger in which a refrigerant in a high-temperature, high-pressure gaseous state flows in, releases heat of liquefaction through heat exchange, condenses into a liquid state, and is then discharged. Depending on the heat exchange medium used to exchange heat with the refrigerant, condensers can be classified into air-cooled types, which utilize air, and water-cooled types, which utilize liquid.

[0004] Recently, electric vehicles have been trending toward reducing the effective surface area of ​​radiator grilles to improve drag coefficients and enhance energy efficiency. Consequently, it is becoming increasingly difficult to ensure the heat transfer performance of air-cooled heat exchangers positioned behind the radiator grille. Furthermore, as electric vehicles adopt coolant circulation systems to cool various electronic components, motors, and batteries, integrated thermal management—which controls and utilizes the heat source of the coolant—is crucial.

[0005] Therefore, there is a trend of switching heat exchangers for electric vehicles used for cooling functions from conventional air-cooled to water-cooled types. The problem to be solved

[0006] The present invention aims to provide a receiver dryer integrated water-cooled condenser in which the number of parts is reduced and the overall structure and manufacturing process are simplified by manufacturing the receiver dryer as an integrated unit in the condensation and subcooling sections. means of solving the problem

[0007] A water-cooled condenser integrated with a receiver dryer according to an embodiment of the present invention comprises: a condensing section in which a refrigerant and a cooling water flow alternately to condense the refrigerant; a subcooling section in which a refrigerant and a cooling water flow alternately to subcool the refrigerant; and a connecting section interposed between the condensing section and the subcooling section to form a movement path for each of the refrigerant and the cooling water, wherein the connecting section comprises: a first plate having a first processing section formed thereon; and a second plate coupled to the first plate and having a second processing section corresponding to the first processing section formed thereon, and when the first plate and the second plate are coupled, a refrigerant storage space is formed by the first processing section and the second processing section.

[0008] In addition, the first processing part and the second processing part may each have a structure for forming a connection part, a structure for the inflow, movement, and discharge of a refrigerant, and a structure for the penetration of cooling water.

[0009] Additionally, the first processing section may include a refrigerant inlet hole into which refrigerant flows from the condensation section; a first refrigerant groove connected to the refrigerant inlet hole; and a first refrigerant storage groove connected to the first refrigerant groove to form a refrigerant storage space.

[0010] In addition, the first processing part may include a cooling water penetration hole for cooling water to pass through.

[0011] Additionally, the second processing part may include: a second refrigerant groove connected to the refrigerant inlet hole and corresponding to the first refrigerant groove; a refrigerant discharge hole connected to the second refrigerant groove; and a second refrigerant storage groove connected to the second refrigerant groove and corresponding to the first refrigerant storage groove, forming a refrigerant storage space together with the first refrigerant storage groove.

[0012] In addition, the second processing part may further include a cooling water penetration pipe connected to the cooling water penetration hole for the cooling water to pass through.

[0013] In addition, the refrigerant movement path formed by the first refrigerant groove and the second refrigerant groove may have a space inlet and a space outlet connected to the refrigerant storage space, respectively.

[0014] In addition, the refrigerant movement path may be composed of a refrigerant inflow path extending from the refrigerant inflow hole to the space inflow hole and a refrigerant outflow path extending from the space outflow hole to the refrigerant outflow hole.

[0015] In addition, the connection part may be formed by the first refrigerant storage groove of the first processing part and the second refrigerant storage groove of the second processing part.

[0016] In addition, the refrigerant inlet hole, the first refrigerant groove, and the cooling water penetration hole of the first processing part are arranged in the width direction inner side of the first plate, and the second refrigerant groove, the refrigerant discharge hole, and the cooling water penetration pipe of the second processing part are arranged in the width direction inner side of the second plate, so that the structure for the inflow, movement, and discharge of the refrigerant in the first plate and the second plate, and the structure for the penetration of the cooling water can be arranged in the space between the condenser and the subcooler.

[0017] In addition, the first refrigerant storage groove is positioned on one side in the width direction of the first plate, and the second refrigerant storage groove is positioned on one side in the width direction of the second plate to correspond to the first refrigerant storage groove, so that the connecting part can be positioned outside the space between the condensing part and the subcooling part.

[0018] In addition, the refrigerant inlet hole may be formed as a protruding structure connected to the condenser.

[0019] In addition, the refrigerant discharge hole may be formed as a protruding structure connected to the subcooling part.

[0020] In addition, the first processing part and the second processing part may each further include at least one first volume groove and a second volume groove protruding to make surface contact with the condensation part and the supercooling part.

[0021] In addition, the first volume groove and the second volume groove may be formed respectively on the first plate and the second plate between the refrigerant storage space and the refrigerant inflow path.

[0022] In addition, the first volume groove and the second volume groove may be formed respectively on the first plate and the second plate located outside the width direction of the refrigerant inlet path.

[0023] In addition, the first volume groove and the second volume groove may be formed respectively on the first plate and the second plate below the refrigerant discharge path.

[0024] In addition, the above connection may further include a filter unit installed in the refrigerant storage space and filtering the refrigerant flowing into the refrigerant storage space through the space inlet and discharging it through the space outlet.

[0025] Additionally, the filter unit may include a filter body; and a bottom cap that seals the bottom of the refrigerant storage space installed in the filter body.

[0026] Additionally, the outer surface of the lower cap has screw threads formed thereon, and the connecting portion is inserted into and fixed to the lower part of the refrigerant storage space, and may further include a fixing nut having screw threads formed on its inner surface so that the lower cap is fastened from the inside.

[0027] In addition, the first processing part may further include a first fixing protrusion that protrudes from the bottom surface of the first refrigerant storage groove and contacts a fixing projection formed on the side of the filter body to fix the filter body in position in the refrigerant storage space.

[0028] In addition, the second processing part may further include a second fixing protrusion that protrudes from the bottom surface of the second refrigerant storage groove and contacts a fixing projection formed on the side of the filter body to fix the filter body in position in the refrigerant storage space.

[0029] In addition, the above connection may further include a top cap that seals the top of the refrigerant storage space.

[0030] In addition, the above refrigerant storage space may be formed into a cylindrical structure.

[0031] In addition, the first processing part and the second processing part can each be press-processed.

[0032] In addition, the first plate and the second plate can be joined through brazing and clinching methods.

[0033] In addition, the condensation section and the supercooling section may each include a plurality of alternately stacked plates. Effects of the invention

[0034] According to a water-cooled condenser with an integrated receiver dryer according to one embodiment of the present invention, a connection part is placed in the space between the condenser and the subcooler to provide a flow path for refrigerant and cooling water, and the connection part is configured to include a receiver dryer. As a result, the receiver dryer, which previously existed as a separate component, is eliminated, thereby reducing the number of parts and simplifying the manufacturing process, and there is an advantage of reducing the overall size of the water-cooled condenser. Brief explanation of the drawing

[0035] FIG. 1 is a perspective view of a water-cooled capacitor according to one embodiment of the present invention. FIG. 2 is a plan view of a water-cooled capacitor according to one embodiment of the present invention. Figure 3 is an exploded view of Figure 2. FIG. 4 is a drawing showing the inner surfaces of a first plate and a second plate constituting a water-cooled condenser according to one embodiment of the present invention. FIG. 5 is a diagram showing the internal configuration in which a filter section and a fixing nut constituting a water-cooled condenser according to one embodiment of the present invention are assembled in a refrigerant storage space. Figure 6 is a drawing illustrating a structure in which a filter section and a fixing nut are installed in a refrigerant storage space. Figure 7 conceptually illustrates a stacked structure of multiple heat exchange plates constituting a condenser and a subcooler. Specific details for implementing the invention

[0036] Hereinafter, a receiver dryer integrated water-cooled condenser according to an embodiment of the present invention will be examined in detail with reference to the attached drawings.

[0037] Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, but should be interpreted in a meaning and concept consistent with the technical spirit of the invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention.

[0038] Therefore, the embodiments described in this specification and the configurations illustrated in the drawings are merely the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention; thus, it should be understood that various equivalents and modifications that can replace them may exist at the time of filing this application.

[0039] FIG. 1 is a perspective view of a water-cooled condenser according to an embodiment of the present invention, FIG. 2 is a plan view of a water-cooled condenser according to an embodiment of the present invention, FIG. 3 is an exploded view of FIG. 2, FIG. 4 is a drawing showing the inner surfaces of a first plate and a second plate constituting a water-cooled condenser according to an embodiment of the present invention, FIG. 5 is a drawing showing an internal configuration in which a filter section and a fixing nut constituting a water-cooled condenser according to an embodiment of the present invention are assembled in a refrigerant storage space, FIG. 6 is a drawing for explaining a structure in which a filter section and a fixing nut are mounted in a refrigerant storage space, and FIG. 7 conceptually shows a stacked structure of a plurality of heat exchange plates constituting a condenser section and a subcooler section.

[0041] Referring to FIGS. 1 to 3, a water-cooled condenser (1000) according to an embodiment of the present invention includes a condensing section (100) in which a refrigerant and a cooling water exchange heat to condense the refrigerant, a connecting section (300) that provides a flow path between the condensing section (100) and the cooling water, and a subcooling section (200) in which the refrigerant passing through the connecting section (300) exchanges heat with the cooling water to subcool the refrigerant. In particular, the condensing section (100) also functions as a gas-liquid separator that separates the condensed refrigerant into gas and liquid.

[0042] The condenser (100) condenses and discharges high-temperature refrigerant using cooling water introduced from the outside. In this condenser (100), the refrigerant and cooling water are configured to flow alternately. To achieve this, a plurality of heat exchange plates (see FIG. 7) may be stacked at regular intervals, and different fluids may be configured to flow one by one through the passages between the plates.

[0043] The subcooling section (200) is a part in which the refrigerant and cooling water passing through the connecting section (300) described later exchange heat to subcool the refrigerant, and is configured so that the refrigerant and cooling water flow alternately. To this end, a plurality of heat exchange plates (see FIG. 7) may be stacked. Since the structure of the subcooling section is substantially the same as the structure of the condensing section, a repeated description is omitted.

[0044] The connecting part (300) is positioned between the condensing part (100) and the subcooling part (200), and a path for the refrigerant and the cooling water is provided, and it provides the function of separating the gas and liquid from the refrigerant condensed in the condensing part (100).

[0045] This connecting part (300) may include a first plate (310) and a second plate (320). Referring to FIG. 4, a first processing part (310A) is formed on the first plate (310), and a second processing part (320A) is formed on the second plate (320). When the first plate (310) and the second plate (320) are combined with each other, the connecting part (300) is formed by the first processing part (310A) and the second processing part (320A).

[0046] The first processing section (310A) and the second processing section (320A) can each be formed by press-processing the first plate (310) and the second plate (320). The first processing section (310A) and the second processing section (320A) are each provided with a structure for forming a refrigerant storage space (S), a structure for the inflow, movement, and discharge of refrigerant, and a structure for the penetration of cooling water.

[0047] Below, the configuration of the first processing section (310A) and the second processing section (320A) will be explained in detail.

[0048] First, the first processing part (310A) includes a refrigerant inlet hole (311), a first refrigerant groove (312), a first refrigerant storage groove (313), and a cooling water penetration hole (314), as shown in FIG. 4.

[0049] The refrigerant inlet hole (311) is a portion into which refrigerant flows from the condenser (100), and may be formed as a protruding hole structure connected to the condenser (100) at a position corresponding to the refrigerant outlet (115) of the condenser (100). Accordingly, the refrigerant inlet hole (311) can be connected to the refrigerant outlet (115).

[0050] The first refrigerant groove (312) is a part for forming a path (L) through which the refrigerant moves together with the second refrigerant groove (321). This first refrigerant groove (312) may consist of a part for guiding the refrigerant to the first refrigerant storage groove (313) and a part for guiding the refrigerant coming out of the first refrigerant storage groove (313) to the refrigerant discharge hole (322). Hereinafter, they are respectively named as the first refrigerant inlet groove (312a) and the first refrigerant discharge groove (312b).

[0051] One end of the first refrigerant inlet groove (312a) is connected to the refrigerant inlet hole (311) so as to guide the refrigerant introduced through the refrigerant inlet hole (311) to flow in a preset direction. As illustrated, the other end of the first refrigerant inlet groove (312a) is connected to the first refrigerant storage groove (313), so that the refrigerant is guided to move through the first refrigerant inlet groove (312a) and moves to the first refrigerant storage groove (313). As illustrated in FIG. 4, the first refrigerant inlet groove (312a) can be formed to extend in the longitudinal direction. Here, the first refrigerant storage groove (313) can form a refrigerant storage space (S) together with the second refrigerant storage groove (323) described later. The first refrigerant storage groove (313) and the second refrigerant storage groove (323) are each concavely recessed, so when the first plate (310) and the second plate (320) are joined together, the refrigerant storage space (S) formed by the first refrigerant storage groove (313) and the second refrigerant storage groove (323) can be formed in a cylindrical structure as shown in FIG. 3.

[0052] One end of the first refrigerant discharge groove (312b) is connected to the first refrigerant storage groove (313) so as to guide the refrigerant passing through the refrigerant storage space (S) to flow in a preset direction. As illustrated, the first refrigerant discharge groove (312b) extends to a point facing the refrigerant discharge hole (322) of the second plate (320), so that the refrigerant is guided to move through the first refrigerant discharge groove (312b) and discharged through the refrigerant discharge hole (322). As illustrated in FIG. 4, the first refrigerant discharge groove (312b) may be formed to extend in the transverse direction. The discharged refrigerant flows into the subcooling section (200).

[0053] The cooling water penetration hole (314) is a structure for cooling water to pass through and can be connected to the cooling water penetration pipe (324) of the second plate (320) to form a cooling water penetration path.

[0055] Meanwhile, the second plate (320) may be combined with the first plate (310) and may include a second processed part (320A) that corresponds to the first processed part (310A) and is press-processed. The second processed part (320A) may, together with the first processed part (310A) described above, form a structure for the inflow, movement, storage, and discharge of refrigerant and the penetration of cooling water. To this end, the second processed part (320A) includes a second refrigerant groove (321), a refrigerant discharge hole (322), a second refrigerant storage groove (323), and a cooling water penetration pipe (324), as shown in FIG. 4.

[0056] The second refrigerant groove (321) is formed to correspond to the first refrigerant groove (312) described above and is another part for forming a path (L) through which the refrigerant moves together with the first refrigerant groove (312). This second refrigerant groove (321) may consist of a part for guiding the refrigerant to the second refrigerant storage groove (323) and a part for guiding the refrigerant coming out of the second refrigerant storage groove (323) to the refrigerant discharge hole (322). Hereinafter, they are distinguished and named as the second refrigerant inlet groove (321a) and the second refrigerant discharge groove (321b), respectively.

[0057] One end of the second refrigerant inlet groove (321a) faces the aforementioned refrigerant inlet hole (311), and the other end is connected to the second refrigerant storage groove (323) so as to be in communication with it. Accordingly, the refrigerant introduced through the refrigerant inlet hole (311) is guided to the second refrigerant storage groove (323). As shown in FIG. 4, the second refrigerant inlet groove (321a) may be formed to extend in the longitudinal direction.

[0058] One end of the second refrigerant discharge groove (321b) is connected to the second refrigerant storage groove (323) so as to be in communication with it, and the other end is connected to the refrigerant discharge hole (322). Accordingly, the refrigerant passing through the refrigerant storage space (S) is guided to flow toward the refrigerant discharge hole (322). The refrigerant is discharged through the refrigerant discharge hole (322) and flows into the subcooling section (200).

[0059] This refrigerant movement path (L) may have a space inlet (I) and a space outlet (O) respectively connected to a refrigerant storage space (S) formed by the first refrigerant groove (312) and the second refrigerant groove (321).

[0060] The refrigerant discharge hole (322) can be connected to the second refrigerant groove (321). More specifically, the refrigerant discharge hole (322) can be connected to the second refrigerant discharge groove (321b) which extends from the space outlet (O) of the second refrigerant storage groove (323) among the second refrigerant grooves (321).

[0061] These refrigerant discharge holes (322) can be formed as protruding structures connected to the subcooling section (200). Accordingly, the refrigerant discharge holes (322) can be connected to the refrigerant inlet portion of the subcooling section (200).

[0062] The second refrigerant storage groove (323) corresponds to the first refrigerant storage groove (313) and can form a refrigerant storage space (S) together with the first refrigerant storage groove (313). Here, the refrigerant storage space (S) formed by the second refrigerant storage groove (323) and the first refrigerant storage groove (313) can be formed in a cylindrical structure as shown in FIG. 3. The second refrigerant storage groove (323) is connected to the second refrigerant inlet groove (321a) through the space inlet (I) and to the second refrigerant discharge groove (321b) through the space outlet (O).

[0063] The cooling water penetration pipe (324) is a structure for cooling water to pass through, and can form a cooling water penetration path by connecting to the cooling water penetration hole (314) of the first plate (310) described above so that cooling water can pass through. In this way, cooling water discharged from the condensation section (100) through the cooling water penetration path by means of the cooling water penetration pipe (324) and the cooling water penetration hole (314) can be transferred to the supercooling section (200) through the connection section (300).

[0064] The aforementioned first refrigerant groove (312) and second refrigerant groove (321) form a refrigerant movement path (L) when the first plate (310) and the second plate (320) are joined together. The refrigerant movement path (L) consists of a refrigerant inlet path and a refrigerant outlet path. The refrigerant inlet path is formed by the combination of the first refrigerant inlet groove (312a) and the second refrigerant inlet groove (321a), and the refrigerant outlet path is formed by the combination of the first refrigerant outlet groove (312b) and the second refrigerant outlet groove (321b). A space inlet (I) is provided at the connection point between the refrigerant inlet path and the refrigerant storage space (S), and a space outlet (O) is provided at the connection point between the refrigerant storage space (S) and the refrigerant outlet path. Accordingly, the first refrigerant inlet groove (312a) and the second refrigerant inlet groove (321a) form a refrigerant inlet path extending from the refrigerant inlet hole (311) to the space inlet (I), and the first refrigerant discharge groove (312b) and the second refrigerant discharge groove (321b) form a refrigerant discharge path extending from the space outlet (O) to the refrigerant discharge hole (322).

[0065] And, as previously explained, the first refrigerant storage groove (313) and the second refrigerant storage groove (323) form a refrigerant storage space (S) when the first plate (310) and the second plate (320) are joined together. At this time, the refrigerant storage space (S) is a space corresponding to a receiver dryer. In this way, the first processing part (310A) provided on the first plate (310) of the present invention and the second processing part (320A) of the second plate (320) form a refrigerant inflow path, a refrigerant storage space (S), and a refrigerant discharge path when the first plate (310) and the second plate (320) are joined together.

[0067] Meanwhile, when the connecting part (300) is installed between the condensing part (100) and the subcooling part (200), the refrigerant inlet path and the refrigerant discharge path are arranged in the space between the condensing part (100) and the subcooling part (200). To this end, the refrigerant inlet hole (311), the first refrigerant groove (312), and the cooling water penetration hole (314) of the first processing part (310A) are arranged in the width direction inner side of the first plate (310), and the second refrigerant groove (321), the refrigerant discharge hole (322), and the cooling water penetration pipe (324) of the second processing part (320A) may be arranged in the width direction inner side of the second plate (320). Accordingly, a structure for the inflow, movement, and discharge of refrigerant in the first plate (310) and the second plate (320), and a structure for the penetration of cooling water are placed in the space between the condensation section (100) and the subcooling section (200).

[0068] Meanwhile, when the connecting part (300) is installed between the condensing part (100) and the subcooling part (200), the refrigerant storage space (S) is positioned outside the space between the condensing part (100) and the subcooling part (200). That is, the component functioning as a receiver dryer is positioned outside the space between the condensing part (100) and the subcooling part (200). To this end, the first refrigerant storage groove (313) may be positioned on one side in the width direction of the first plate (310), and the second refrigerant storage groove (323) may be positioned on one side in the width direction of the second plate (320) to correspond to the first refrigerant storage groove (313).

[0069] Under this structure, the refrigerant passing through the condenser (100) enters the refrigerant inlet path located in the space between the condenser (100) and the subcooler (200), flows into the refrigerant storage space (S) located outside the space between the condenser (100) and the subcooler (200) to undergo a gas-liquid separation process, and then re-enters the refrigerant discharge path located in the space between the condenser (100) and the subcooler (200) to flow into the subcooler. Meanwhile, the cooling water flows directly from the condenser (100) to the subcooler (200) without leaving the space between the condenser (100) and the subcooler (200).

[0071] Meanwhile, the first processing section (310A) and the second processing section (320A) may each include at least one first volume groove (315) and a second volume groove (325) protruding to make surface contact with the condensation section (100) and the subcooling section (200). These first volume groove (315) and second volume groove (325) are applied to the remaining area, i.e., the unusable area, excluding the area required to apply a structure for the inflow, movement, and discharge of refrigerant, a structure for the storage of refrigerant, and a structure for the penetration of cooling water, from the entire area of ​​the first plate (310) and the second plate (320) constituting the connection section (300).

[0072] In the first plate (310), a portion of the unusable area is formed to protrude in a direction away from the second plate (320), that is, toward the condensation section (100), thereby forming a first volume groove (315). According to this configuration, the rigidity of the first plate (310) itself can be basically reinforced, and furthermore, the protruding area can come into surface contact with the condensation section (100), thereby improving the bonding force between the condensation section (100) and the connecting section (300). As described later, the condensation section (100) is composed of a structure in which a plurality of plates are stacked, so the first volume groove (315) can come into surface contact with the last plate of the condensation section (100), that is, the plate closest to the connecting section (300).

[0073] Likewise, in the second plate (320), a portion of the unusable area is shaped to protrude in a direction away from the first plate (310), that is, toward the supercooling section (200), thereby forming a second volume groove (325). According to this configuration, the rigidity of the second plate (320) itself can be reinforced, and the bonding force between the supercooling section (200) and the connecting section (300) can be improved. As described below, the supercooling section (200) is formed in a structure in which a plurality of plates are stacked, so the second volume groove (325) can make surface contact with the first plate of the supercooling section (200), that is, the plate closest to the connecting section (300).

[0074] These first volume grooves (315) and second volume grooves (325) may be formed in at least one unusable area of ​​the first plate (310) and the second plate (320).

[0075] First, the first volume groove (315) and the second volume groove (325) can each be formed in the area between the refrigerant storage space (S) and the refrigerant inflow path of the first plate (310) and the second plate (320). That is, as shown in FIG. 4, the first volume groove (315) can be formed in the area between the first refrigerant storage groove (313) and the first refrigerant inflow groove (312a) of the first plate (310), and the second volume groove (325) can be formed in the area between the second refrigerant storage groove (323) and the second refrigerant inflow groove (321a) of the second plate (320).

[0076] Additionally, the first volume groove (315) and the second volume groove (325) may each be formed on the width direction outside the refrigerant inlet path among the first plate (310) and the second plate (320). That is, as shown in FIG. 4, the first volume groove (315) may be formed on the width direction outside the first refrigerant inlet groove (312a) of the first plate (310), and the second volume groove (325) may be formed on the width direction outside the second refrigerant inlet groove (321a) of the second plate (320).

[0077] Additionally, the first volume groove (315) and the second volume groove (325) may each be formed in the lower part of the refrigerant discharge path of the first plate (310) and the second plate (320). That is, as shown in FIG. 4, the first volume groove (315) may be formed in the lower part of the first refrigerant discharge groove (312b) of the first plate (310), and the second volume groove (325) may be formed in the lower part of the second refrigerant discharge groove (321b) of the second plate (320).

[0079] Meanwhile, the connection part (300) may further include a filter part (330). The filter part (330) is installed in the refrigerant storage space (S) of the connection part (300) and filters the refrigerant flowing into the refrigerant storage space (S) through the space inlet (I) and discharges it through the space outlet (O).

[0080] More specifically, the filter unit (330) includes a filter body (331) and a bottom cap (332). The filter body (331) serves to remove foreign substances from the refrigerant flowing into the refrigerant storage space (S). The bottom cap (332) is coupled to the lower part of the filter body (331) to connect the filter unit (330) to the refrigerant storage space (S). As shown in FIG. 7, screw threads are formed on the outer surface of the bottom cap (332). For reference, the bottom of the refrigerant storage space (S) can be sealed by the bottom cap (332).

[0081] Meanwhile, a fixing nut (340) is disclosed as a structure for installing the filter unit (330) in the refrigerant storage space (S). As shown in FIG. 7, the fixing nut (340) may be formed as a cylindrical structure with both longitudinal ends open, and threads are formed on its inner surface. This fixing nut (340) is fixedly installed in the lower part of the refrigerant storage space (S), and may be fixed by being placed between the first plate (310) and the second plate (320) and then brazed together. Alternatively, it may be inserted and coupled in a manner such as a press fit into the lower part of the refrigerant storage space (S). With the fixing nut (340) mounted in the refrigerant storage space (S), the threads formed on the outer surface of the bottom cap (332) of the filter unit (330) are screw-coupled with the threads formed on the inner surface of the fixing nut (340), thereby allowing the filter body (331) to be seated in the refrigerant storage space (S).

[0082] Meanwhile, as illustrated in FIG. 7, the first processing part (310A) may further include a first fixed protrusion (316) at the bottom of the refrigerant storage space (S). The first fixed protrusion (316) protrudes inward from the bottom surface of the first refrigerant storage groove (313) into the refrigerant storage space (S) and extends in a circumferential direction. This first fixed protrusion (316) can be formed, for example, by press processing. When the first fixed protrusion (316) is provided in the refrigerant storage space (S) and the filter part (330) is installed in the refrigerant storage space (S), the first fixed protrusion (316) comes into contact with the fixed projection (331a) formed on the side of the filter body (331). Accordingly, the filter body (331) can be fixed in position in the refrigerant storage space (S).

[0083] Meanwhile, as shown in FIG. 4, the second processing section (320A) may further include a second fixed protrusion (326) at the bottom of the refrigerant storage space (S). The second fixed protrusion (326) protrudes inward from the bottom surface of the second refrigerant storage groove (323) into the refrigerant storage space (S) and extends in a circumferential direction. The second fixed protrusion (326) is provided at the same height as the first fixed protrusion (316) and, together with the first fixed protrusion (316), can fix the filter body (331) in position within the refrigerant storage space (S).

[0084] Meanwhile, the top cap (350) seals the top of the refrigerant storage space (S). A circular baffle may be applied to this top cap (350). Coupling protrusions protrude from both sides of the baffle, and holes are provided in the first refrigerant storage groove (313) and the second refrigerant storage groove (323) to which the coupling protrusions can be inserted and coupled.

[0086] Meanwhile, the first plate (310) and the second plate (320) according to the present embodiment can be manufactured by extrusion forging using a material in which magnesium is added to aluminum, and by applying the same material with good corrosion resistance to the entire structure, the overall corrosion resistance of the connecting part (300) can be improved.

[0087] Additionally, the first plate (310) and the second plate (320) can be joined by applying brazing welding and clinching methods to the edge portions.

[0089] Meanwhile, as described above, the condenser (100) and the subcooler (200) may include a plurality of alternatingly stacked heat exchange plates (111, 112). FIG. 7 conceptually illustrates the stacking structure of the plurality of heat exchange plates (111, 112) constituting the condenser (100) and the subcooler (200). Referring to FIG. 7, the first heat exchange plate (111) and the second heat exchange plate (112) are alternately stacked, and each heat exchange plate is arranged so that the layer through which the refrigerant flows and the layer through which the cooling water flows alternately flow through a connection structure of holes provided at the four corners. At this time, each heat exchange plate (111, 112) may be formed as a tray structure with side walls formed along the edges.

[0090] More specifically, among the four holes of the first heat exchange plate (111), the two diagonally facing cooling water transfer holes (1, 3) have a connecting portion formed protruding to the right, and among the four holes of the second heat exchange plate (112), the two diagonally facing cooling water transfer holes (1, 3) have a connecting portion formed protruding to the left. Accordingly, when the first heat exchange plate (111) and the second heat exchange plate (112) are stacked, only one transfer fluid, such as a refrigerant, can flow through the refrigerant transfer holes in the space between them. Also, among the four holes of the first heat exchange plate (111), the two diagonally facing cooling water transfer holes (2, 4) have a connecting portion formed protruding to the right, and among the four holes of the second heat exchange plate (112), the two diagonally facing cooling water transfer holes (2, 4) have a connecting portion formed protruding to the left. Accordingly, when the first heat exchange plate (111) and the second heat exchange plate (112) are stacked, the space between them can be traversed by only one transfer fluid, such as cooling water, through the cooling water transfer hole.

[0091] Meanwhile, an inner fin plate (113) may be placed between adjacent heat exchange plates (111, 112). This inner fin plate (113) is composed of a plurality of bending fins (113a), each of which has a shape that is repeatedly bent in a wavy manner, and the repeatedly bent fins may be arranged and combined so as to be offset from each other in an upright state to form a single plate structure.

[0093] According to the present embodiment, by manufacturing an integrated structure in which a connecting part (300) is arranged in a stacked form between a condensing part (100) and a subcooling part (200), a separate receiver dryer is not required, and the receiver dryer area can be distinguished from the plate, which is advantageous for cost and manufacturability, as well as simplifying the package and manufacturing process required for a water-cooled condenser.

[0094] In addition, the plates constituting the connecting part (300) can be made using a press method to implement a complex flow path, and two plates can be combined to form a flow path, and these can be combined with the plates of the condensing part (100) and the subcooling part (200) to produce a water-cooled condenser (1000) integrated with the connecting part (300), thereby reducing the overall size of the parts.

[0095] Also, the connection part (300) is included as a separate part in the plate constituting the condensation part (100) and the subcooling part (200), so that the overall structure of the water-cooled condenser (1000) can be simplified.

[0096] In addition, conventional receiver dryers are inevitably made of materials susceptible to corrosion due to their manufacturing process (e.g., extrusion forging), but the connecting part (300) of this embodiment can improve corrosion resistance by using a plate material that allows for the application of a corrosion-resistant material capable of protecting against corrosion.

[0097] The above description is merely one embodiment for implementing the present invention, and the present invention is not limited to the above-described embodiment. The technical spirit of the present invention extends to the scope in which various modifications can be made by anyone with ordinary knowledge in the field to which the invention belongs, without departing from the essence of the invention as claimed in the following patent claims. Explanation of the symbols

[0098] 1000: Water-cooled condenser 100: Condenser 200: Supercooled part 300: Connection part 310: First plate 310A: 1st processing section 311: Refrigerant inlet hole 312: 1st Refrigerant Home 313: 1st refrigerant storage groove 314: Coolant penetration hole 315: 1st Volume Home 316: First fixed ridge 320: Second plate 320A: 2nd processing section 321: 2nd Refrigerant Home 322: Refrigerant discharge hole 323: Second refrigerant storage groove 324: Coolant penetration pipe 325: 2nd Volume Home 326: Second fixed ridge 330: Filter section 331: Filter body 331a: Fixed projection 332: Bottom cap 340: Fixing nut 350: Top cap S: Refrigerant storage space L: Refrigerant path I: Space Entrance O: Space Exit

Claims

Claim 1 A water-cooled condenser with an integrated receiver dryer, comprising: a condensing section in which a refrigerant and a cooling water flow alternately to condense the refrigerant; a subcooling section in which a refrigerant and a cooling water flow alternately to subcool the refrigerant; and a connecting section interposed between the condensing section and the subcooling section to form a movement path for each of the refrigerant and the cooling water, wherein the connecting section comprises: a first plate having a first processing section formed thereon; and a second plate coupled to the first plate and having a second processing section corresponding to the first processing section formed thereon, wherein when the first plate and the second plate are coupled, a refrigerant storage space is formed by the first processing section and the second processing section. Claim 2 A receiver dryer integrated water-cooled condenser according to claim 1, wherein the first processing part and the second processing part each have a structure for forming a connection part, a structure for the inflow, movement and discharge of refrigerant, and a structure for the penetration of cooling water. Claim 3 A water-cooled condenser with an integrated receiver dryer according to claim 1, wherein the first processing part comprises: a refrigerant inlet hole into which refrigerant flows from the condensing part; a first refrigerant groove connected to the refrigerant inlet hole; and a first refrigerant storage groove connected to the first refrigerant groove to form a refrigerant storage space. Claim 4 A water-cooled condenser with an integrated receiver dryer, characterized in that, in paragraph 3, the first processing part includes a cooling water penetration hole for cooling water to pass through. Claim 5 In claim 4, the second processing part comprises: a second refrigerant groove connected to the refrigerant inlet hole and corresponding to the first refrigerant groove; a refrigerant discharge hole connected to the second refrigerant groove; and a second refrigerant storage groove connected to the second refrigerant groove and corresponding to the first refrigerant storage groove, forming a refrigerant storage space together with the first refrigerant storage groove; a receiver dryer integrated water-cooled condenser. Claim 6 A receiver dryer integrated water-cooled condenser, characterized in that, in claim 5, the second processing part further includes a cooling water penetration pipe connected to the cooling water penetration hole for the cooling water to pass through. Claim 7 A water-cooled condenser with an integrated receiver dryer according to claim 5, wherein the refrigerant movement path formed by the first refrigerant groove and the second refrigerant groove comprises a space inlet and a space outlet connected to the refrigerant storage space, respectively. Claim 8 A water-cooled condenser with an integrated receiver dryer according to claim 7, wherein the refrigerant movement path comprises a refrigerant inlet path extending from the refrigerant inlet hole to the space inlet and a refrigerant discharge path extending from the space outlet to the refrigerant discharge hole. Claim 9 A receiver dryer integrated water-cooled condenser, wherein, in claim 5, the connection portion is formed by the first refrigerant storage groove of the first processing portion and the second refrigerant storage groove of the second processing portion. Claim 10 In claim 9, the refrigerant inlet hole, the first refrigerant groove, and the cooling water penetration hole of the first processing part are arranged in the width direction inner side of the first plate, and the second refrigerant groove, the refrigerant discharge hole, and the cooling water penetration pipe of the second processing part are arranged in the width direction inner side of the second plate, and the structure for the inflow, movement, and discharge of the refrigerant in the first plate and the second plate, and the structure for the penetration of the cooling water are arranged in the space between the condenser part and the subcooler part, a receiver dryer integrated water-cooled condenser. Claim 11 A water-cooled condenser with an integrated receiver dryer according to claim 10, wherein the first refrigerant storage groove is disposed on one side in the width direction of the first plate, and the second refrigerant storage groove is disposed on one side in the width direction of the second plate to correspond to the first refrigerant storage groove, and the connecting portion is disposed on the outside of the space between the condensing portion and the subcooling portion. Claim 12 A water-cooled condenser with an integrated receiver dryer, characterized in that, in paragraph 3, the refrigerant inlet hole is formed as a protruding structure connected to the condenser. Claim 13 A receiver dryer integrated water-cooled condenser, characterized in that, in claim 5, the refrigerant discharge hole is formed as a protruding structure connected to the subcooling part. Claim 14 A receiver dryer integrated water-cooled condenser according to claim 9, wherein the first processing part and the second processing part each further include at least one first volume groove and a second volume groove protruding to make surface contact with the condensation part and the supercooling part. Claim 15 A water-cooled condenser with an integrated receiver dryer according to claim 14, wherein the first volume groove and the second volume groove are respectively formed in the first plate and the second plate between the refrigerant storage space and the refrigerant inflow path. Claim 16 A water-cooled condenser with an integrated receiver dryer according to claim 14, wherein the first volume groove and the second volume groove are respectively formed on the first plate and the second plate located outside the width direction of the refrigerant inlet path. Claim 17 A water-cooled condenser with an integrated receiver dryer according to claim 14, wherein the first volume groove and the second volume groove are respectively formed in the first plate and the second plate below the refrigerant discharge path. Claim 18 A water-cooled condenser with an integrated receiver dryer according to claim 8, wherein the connection part further comprises a filter part installed in the refrigerant storage space and filtering the refrigerant flowing into the refrigerant storage space through the space inlet and discharging it through the space outlet. Claim 19 A water-cooled condenser with an integrated receiver dryer according to claim 18, wherein the filter section comprises: a filter body; and a bottom cap that seals the bottom of the refrigerant storage space installed in the filter body. Claim 20 A water-cooled condenser with an integrated receiver dryer according to claim 19, characterized in that, the outer surface of the lower cap has screw threads formed thereon, and the connecting portion is inserted into and fixed to the lower part of the refrigerant storage space, and further includes a fixing nut having screw threads formed on its inner surface so that the lower cap is fastened from the inside. Claim 21 A receiver dryer integrated water-cooled condenser according to claim 20, wherein the first processing part further includes a first fixing protrusion that protrudes from the bottom surface of the first refrigerant storage groove and contacts a fixing projection formed on the side of the filter body to fix the filter body in position in the refrigerant storage space. Claim 22 A receiver dryer integrated water-cooled condenser according to claim 20, wherein the second processing part further includes a second fixing protrusion that protrudes from the bottom surface of the second refrigerant storage groove and contacts a fixing projection formed on the side of the filter body to fix the filter body in position in the refrigerant storage space. Claim 23 A water-cooled condenser with an integrated receiver dryer according to claim 4, wherein the connection part further includes a top cap that seals the top of the refrigerant storage space. Claim 24 A water-cooled condenser with an integrated receiver dryer, characterized in that, in paragraph 4, the refrigerant storage space is formed in a cylindrical structure. Claim 25 A receiver dryer integrated water-cooled condenser according to claim 1, characterized in that the first processing part and the second processing part are each press-processed. Claim 26 A receiver dryer integrated water-cooled condenser according to claim 1, characterized in that the first plate and the second plate are joined through brazing welding and clinching methods. Claim 27 A receiver dryer integrated water-cooled condenser according to claim 1, wherein the condensing section and the subcooling section each comprise a plurality of alternately stacked plates.

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