Heat exchanger

Abstract

The present invention relates to a multi-path heat exchanger in which a plurality of heat exchange plates are stacked to form a plurality of flow paths through which a heat exchange medium flows, in which an inlet through which the heat exchange medium flows in and an outlet through which the heat exchange medium flows out may be positioned on the same side, thus, operability and installability are improved with respect to a modular component such as a manifold.

Description

Technical Field

[0001] The present invention relates to a multi-pass heat exchanger in which a plurality of heat exchange plates can be stacked to form a plurality of flow paths through which a heat exchange medium flows, and an inlet through which the heat exchange medium is introduced and an outlet through which the heat exchange medium is discharged can be positioned at the same side. Background Art

[0002] Recently, with increasing global concern for the world's environment and energy in the vehicle industry, research has been conducted to improve fuel economy, and research has been continuously conducted to reduce weight and size and to improve functionality in order to meet various consumer demands.

[0003] In particular, in the case of an air conditioning system for a vehicle, it is generally difficult to ensure sufficient space in an engine room. Therefore, components constituting the air conditioning system for a vehicle, such as a heat exchanger, need to be small-scale and perform a function of improving efficiency.

[0004] For example, Figure 1 As shown, a heat exchanger in the related art may include: a core 10 having a plurality of stacked plates and a flow path formed by stacking a plurality of plates and configured to allow a heat exchange medium to flow through the flow path; an inlet portion 20 formed on one surface of the core 10 and configured to allow a heat exchange medium to be introduced through the inlet portion 20; and an outlet portion 30 formed on one surface of the core 10 and configured to allow a heat exchange medium to be discharged through the outlet portion 30. In addition, a flow path in which the heat exchange medium flows from the inlet portion 20 through the inside of the core 10 to the outlet portion 30 is formed as a single path. That is, in a heat exchanger having a single path, the inlet portion 20 and the outlet portion 30 for the heat exchange medium may be provided at the same side.

[0005] However, if Figure 2 As shown, in a multi-pass heat exchanger having a plurality of flow paths for a heat exchange medium, an inlet portion 20 and an outlet portion 30 for the heat exchange medium are arranged at different sides, and the plurality of flow paths are formed by arranging a baffle 40 in a core 10 so as to improve the heat exchange performance. In the case where a manifold or the like is applied and connected to the inlet portion and the outlet portion for the heat exchange medium to achieve modularization, or in the case where a valve, a sensor, etc. are integrated into the inlet portion and the outlet portion to advance the technology, the inlet portion and the outlet portion of the heat exchanger need to be arranged together at one side. However, there is a problem in that an additional bypass flow path needs to be formed to arrange the inlet portion and the outlet portion of the heat exchanger at one side.

[0006] [Related technical literature]

[0007] [Patent Document]

[0008] KR 10-2021-0025314A (March 09, 2021) Summary of the invention

[0009] Technical issues

[0010] The present invention has been made in an effort to solve the above-mentioned problems, and an object of the present invention is to provide a multi-pass heat exchanger in which a plurality of heat exchange plates can be stacked to form a plurality of flow paths through which a heat exchange medium flows, and an inlet portion through which the heat exchange medium is introduced and an outlet portion through which the heat exchange medium is discharged can be positioned at the same side.

[0011] Technical Solution

[0012] In order to achieve the above-mentioned purpose, the present invention provides a heat exchanger, which includes: a core part, in which a flow path for a heat exchange medium to flow through is formed between the heat exchange plates by stacking a plurality of heat exchange plates, and an inlet part through which the heat exchange medium is introduced and an outflow part through which the heat exchange medium is discharged are formed; and an isolation flow part, which is arranged in the inlet part or the outflow part of the core part and is configured to divide the internal space of the inlet part or the outflow part of the core part to form a separate flow path for the heat exchange medium to flow through, wherein an inlet for the heat exchange medium to be introduced into the inlet part and an outlet for the heat exchange medium to be discharged from the outflow part are arranged at one side of the core part.

[0013] In addition, the heat exchanger may further include: a partition, which is arranged in the inlet portion or the outlet portion of the core and is configured to divide the internal space, wherein when the flow of the heat exchange medium passing through the heat exchange medium flow path in a direction toward one side or the other side is a passage, a plurality of passages are formed.

[0014] Furthermore, the heat exchange medium introduced into the core may flow through the isolation flow portion and then be introduced into the first passage region.

[0015] Furthermore, the passage may be formed as three passages.

[0016] Furthermore, the inlet through which the heat exchange medium is introduced into the inflow portion and the outlet through which the heat exchange medium is discharged from the outflow portion may be disposed at the same side in a direction in which the plurality of heat exchange plates of the core are stacked.

[0017] Furthermore, the partition may be formed to intersect a longitudinal direction in which the heat exchange medium flows along the inside of the inflow portion or the outflow portion, and an internal space of the inflow portion or the outflow portion may be divided by the partition.

[0018] Furthermore, the partition flow portion may be formed to correspond to a longitudinal direction in which the heat exchange medium flows along the inside of the inflow portion or the outflow portion, and an internal space of the inflow portion or the outflow portion may be divided by the partition flow portion.

[0019] Furthermore, the partition flow portion may divide a partial region of the inflow portion or the outflow portion in the longitudinal direction in which the heat exchange medium flows along the inside of the inflow portion or the outflow portion.

[0020] In addition, the partition may include: a blocking portion configured to block a portion of the interior of the inflow portion; and a baffle portion, which is disposed at a position spaced apart from the blocking portion in the longitudinal direction and configured to divide and block the interior of the outflow portion.

[0021] Furthermore, the isolation flow portion may include an inner tube which is inserted into the inlet portion and has one longitudinal side inserted into and coupled to the inlet of the inlet portion and another longitudinal side inserted into and coupled to the blocking portion.

[0022] Furthermore, the heat exchanger may further include an inlet flange coupled to an inlet side of the inflow portion of the core and having a communication flow path into which one side of the inner tube is inserted and coupled to communicate with the communication flow path.

[0023] Furthermore, a catching groove may be concavely formed in the inner circumferential surface of the communication flow path of the inlet flange, a catching protrusion may protrude from the outer circumferential surface of one side of the inner tube, and the catching protrusion may be inserted and coupled into the catching groove.

[0024] Furthermore, the blocking portion may include a first extending portion extending in a radial direction from the inside of the inflow portion toward the inner tube, and a second extending portion extending from an end of the first extending portion in a direction of inserting the inner tube.

[0025] In addition, a portion of the barrier portion where the first extension portion and the second extension portion are connected may be formed in a circular shape.

[0026] Furthermore, a swaged pipe portion may be formed at the other longitudinal side of the inner pipe inserted into the blocking portion, and the swaged pipe portion may be formed in a shape in which an outer diameter decreases toward an end portion of the swaged pipe portion.

[0027] In addition, the multiple heat exchange plates of the core may have a cup-shaped portion, which protrudes from the periphery of a through hole that penetrates two opposite surfaces of each of the multiple heat exchange plates in the direction of stacking of the heat exchange plates and is configured to allow the heat exchange medium to flow through, and the blocking portion may extend integrally from the end of the cup-shaped portion of the heat exchange plate.

[0028] In addition, the multiple heat exchange plates of the core may have through holes, which penetrate two opposite surfaces of each of the multiple heat exchange plates and are configured to allow the heat exchange medium to flow through the through holes, and the baffle portion may be integrally formed in a shape in which a portion corresponding to the through holes of the heat exchange plate is blocked.

[0029] In addition, the core portion may have flow paths for a plurality of heat exchange mediums to flow between the heat exchange plates, respectively formed by stacking the plurality of heat exchange plates, and the core portion may have the inlet portion and the outlet portion through which the plurality of heat exchange mediums are introduced and discharged, and the partition portion and the isolation flow portion may be formed in the inlet portion or the outflow portion through which any one of the plurality of heat exchange mediums flows.

[0030] In addition, the core portion can be formed by stacking a plurality of first heat exchange plates and a plurality of second heat exchange plates, and the partition portion may include: a blocking portion, which is configured to block a portion of the interior of the inflow portion; and a baffle portion, which is arranged at a position spaced apart from the blocking portion in the longitudinal direction and configured to divide and block the interior of the outflow portion, the blocking portion can be integrated with the first heat exchange plate at a corresponding position, and the baffle portion can be integrated with the first heat exchange plate and the adjacent second heat exchange plate at a corresponding position.

[0031] Beneficial Effects

[0032] The heat exchanger of the present invention is configured as a multi-pass heat exchanger in which a plurality of heat exchange plates can be stacked and an inlet and an outlet for a heat exchange medium can be provided at the same side, so that mountability with modular components such as a manifold can be improved.

[0033] Furthermore, since the inlet portion and the outlet portion for the heat exchange medium are provided at the same side, the cost and weight can be reduced during the process of manufacturing the heat exchanger, and the workability and the like can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] Figure 1 and Figure 2 is a conceptual diagram showing the arrangement of an inlet portion and an outlet portion according to a flow path configuration of a heat exchanger having stacked plates in the related art.

[0035] Figure 3 It is a conceptual diagram showing the heat exchanger of the present invention.

[0036] Figures 4 to 6 1 and 2 are an assembly perspective view, an exploded perspective view, and a front cross-sectional view showing a heat exchanger according to an embodiment of the present invention.

[0037] Figure 7 is a front cross-sectional view showing the configuration of flow paths and passages for refrigerant in a heat exchanger according to an embodiment of the present invention.

[0038] Figure 8 and Fig. 9 is a cross-sectional view showing one side portion and the other side portion of an inner tube through which a refrigerant is introduced into a heat exchanger according to an embodiment of the present invention.

[0039] Fig.10 is a cross-sectional view showing a baffle portion and an outlet side through which discharged refrigerant passes in a heat exchanger according to an embodiment of the present invention. DETAILED DESCRIPTION

[0040] Hereinafter, the heat exchanger of the present invention configured as described above will be described in detail with reference to the accompanying drawings.

[0041] Figure 3 It is a conceptual diagram showing the heat exchanger of the present invention.

[0042] refer to Figure 3 , the heat exchanger of the present invention may broadly include a core 100 and an isolated flow portion. An inlet through which a heat exchange medium is introduced and an outlet through which a heat exchange medium is discharged may be provided at one side of the core 100. In addition, the heat exchanger of the present invention may further include a partition, and the flow of the heat exchange medium may be defined by a plurality of passages. The partition may include a blocking portion 120 and a baffle portion 130. The isolated flow portion may include an internal tube 400.

[0043] The core 100 may be formed in a shape in which a plurality of heat exchange plates are stacked. In the core 100, a heat exchange flow path through which a heat exchange medium flows may be formed between the heat exchange plates by stacking a plurality of heat exchange plates. In addition, in the core 100, an inflow portion 104 through which a heat exchange medium is introduced and flows and an outflow portion 105 through which a heat exchange medium is discharged may be formed at two opposite sides of the heat exchange plate while penetrating the heat exchange plate in the direction in which the heat exchange plate is stacked.

[0044] For example, the partition may include a blocking portion 120 and a baffle portion 130. The blocking portion 120 is disposed in the inflow portion 104 of the core 100 and is formed to intersect with the direction in which the heat exchange medium flows along the inside of the inflow portion 104, so that the internal space of the inflow portion 104 can be divided by the blocking portion 120. The baffle portion 130 is disposed in the outflow portion 105 and is formed to intersect with the direction in which the heat exchange medium flows along the outflow portion 105, so that the internal space of the outflow portion 105 can be divided by the baffle portion 130.

[0045] For example, the isolated flow portion may include an internal tube 400. The internal tube 400 may be disposed in the inflow portion 104 of the core 100, and the internal tube 400 may be formed in a shape parallel to the inflow portion 104 while corresponding to the direction in which the heat exchange medium flows along the interior of the inflow portion 104. In addition, one side of the internal tube 400 is inserted and coupled to the inlet of the inflow portion 104, so that the portion between the outside of the internal tube 400 and the inlet of the inflow portion 104 is blocked. The other side of the internal tube 400 is inserted and coupled to the blocking portion 120 through penetration, so that the portion between the outside of the internal tube 400 and the blocking portion 120 can be blocked. That is, the internal tube 400 can divide a partial area of ​​the inflow portion 104, so that a separate flow path can be formed in the inflow portion 104.

[0046] Therefore, assuming that the flow of the heat exchange medium passing through the heat exchange medium flow path between the inflow portion 104 and the outflow portion 105 in the direction toward one side or the other side is a passage, the core 100 may have a plurality of passages formed by the blocking portion 120, the baffle portion 130, and the inner tube 400. For example, a first passage P1, a second passage P2, and a third passage P3 may be formed. In addition, an inlet through which the heat exchange medium is introduced into the inflow portion 104 and an outlet through which the heat exchange medium is discharged from the outflow portion 105 may be provided at one side of the core 100. In this case, the heat exchange medium introduced into the core 100 may flow through the inner tube 400 and be introduced into the region of the inflow portion 104 adjacent to the first passage P1 as the first passage. Thereafter, the heat exchange medium may pass through the outflow portion 105 via the first passage P1, pass through the portion between the outflow portion 105 and the inner tube 400 via the second passage P2, and then pass through the outflow portion 105 via the third passage P3 to be discharged to the outside of the core 100.

[0047] As described above, the heat exchanger of the present invention can be configured as a multi-pass heat exchanger in which a plurality of heat exchange plates are stacked to form a plurality of flow paths for a heat exchange medium through which the heat exchange medium flow path passes, so that the heat exchange performance can be improved. In addition, the inlet and outlet portions for the heat exchange medium can be arranged at the same side, so that the mountability with modular components such as a manifold can be improved. In addition, since the inlet and outlet portions for the heat exchange medium can be arranged at the same side, the cost and weight can be reduced during the process of manufacturing the heat exchanger, and the workability can be improved, etc.

[0048] Figures 4 to 6 1 and 2 are an assembly perspective view, an exploded perspective view, and a front cross-sectional view showing a heat exchanger according to an embodiment of the present invention.

[0049] As shown in the figure, the heat exchanger according to the embodiment of the present invention can broadly include a core 100, a partition and an isolated flow portion, the flow of the heat exchange medium is formed into a plurality of passages, and the inlet through which the heat exchange medium is introduced and the outlet through which the heat exchange medium is discharged can be set at one side of the core. In addition, the core 100 may include a plurality of first heat exchange plates 101a and a plurality of second heat exchange plates 101b. The partition may include a first baffle 101 integrated with the blocking portion 120, a second baffle 102 integrated with the baffle portion 130, and a third baffle 103 arranged adjacent to the second baffle 102 and integrated with the baffle portion 130. In addition, the isolated flow portion may include an internal pipe 400. In addition, the heat exchanger according to the embodiment of the present invention may also include an inlet flange connected to the internal pipe 400.

[0050] The core 100 may be formed in a shape in which a plurality of first heat exchange plates 101a and a plurality of second heat exchange plates 101b are alternately stacked. The overall shape of the core 100 may be an approximately rectangular parallelepiped shape. In addition, since the first heat exchange plates 101a and the second heat exchange plates 101b of the core 100 are alternately stacked, a refrigerant flow path C1 and a coolant flow path C2 may be alternately formed in the core 100, and the refrigerant as the first heat exchange medium and the coolant as the second heat exchange medium may flow through the refrigerant flow path C1 and the coolant flow path C2 without mixing with each other. In addition, a through hole penetrating two opposite surfaces of each of the first heat exchange plate 101a and the second heat exchange plate 101b in the stacking direction may be formed in the core 100, and a cup-shaped portion 110 may be formed in the through hole, the cup-shaped portion 110 having a shape protruding in the stacking direction in a direction toward one side or the other side. The cup-shaped portions 110 adjacent to each other are coupled and connected so that the refrigerant flow paths C1 may be communicated with each other, and the coolant flow paths C2 may be communicated with each other. In addition, the inflow portion 104 through which the refrigerant is introduced and the outflow portion 105 through which the refrigerant is discharged may be formed by the cup-shaped portion 110 .

[0051] The partition may include a first baffle 101 integrated with a blocking portion 120, a second baffle 102 integrated with a baffle portion 130, and a third baffle 103 disposed adjacent to the second baffle 102 and integrated with the baffle portion 130. The first baffle 101 may be formed in a shape in which the blocking portion 120 integrally extends from the cup-shaped portion 110 of the first heat exchange plate 101a, and the first baffle 101 may be formed such that the blocking portion 120 is disposed in the inflow portion 104. The second baffle 102 may be integrally formed in a shape in which a portion corresponding to a through hole of the first heat exchange plate 101a is blocked by the baffle portion 130. The third baffle 103 may be disposed adjacent to the second baffle 102, and the third baffle 103 may be integrally formed in a shape in which a portion corresponding to a through hole of the second heat exchange plate 101b is blocked by the baffle portion 130. In addition, the baffle portion 130 of the second baffle 102 and the baffle portion 130 of the third baffle 103 may be disposed at positions corresponding to each other, disposed in the outflow portion 105, and configured to divide and block the interior of the outflow portion 105. In addition, the second baffle 102 and the third baffle 103 may divide the interior space of the outflow portion 105 without mixing the refrigerant and the coolant.

[0052] In addition, the isolation flow portion may include an inner tube 400. The heat exchanger according to an embodiment of the present invention may further include a refrigerant inlet flange 310 coupled to the inner tube 400. Most of the other side including the inner tube 400 may be inserted into the inflow portion 104 of the core 100, and one side of the inner tube 400 may be retracted to the outside of the core 100. The refrigerant inlet flange 310 may be coupled to the outside of the core 100, the refrigerant inlet flange 310 may have a communication flow path through which the refrigerant is introduced, and one side of the inner tube 400 is inserted and coupled to the communication flow path so that the portion between the outside of the inner tube 400 and the inlet of the inflow portion 104 may be blocked. In addition, the other side of the inner tube 400 is inserted and coupled to the blocking portion 120 of the first baffle 101 so that the portion between the outside of the inner tube 400 and the blocking portion 120 may be blocked. That is, the inner tube 400 may divide a partial area of ​​the inflow portion 104 so that a separate flow path may be formed in the inflow portion 104.

[0053] Figure 7 is a front cross-sectional view showing the configuration of flow paths and passages for refrigerant in a heat exchanger according to an embodiment of the present invention.

[0054] As shown in the figure, assuming that the flow of the heat exchange medium passing through the refrigerant flow path C1 between the inflow portion 104 and the outflow portion 105 in a direction toward one side or the other side is a passage P, the core 100 may have a plurality of passages P formed by the blocking portion 120, the baffle portion 130, and the inner tube 400. For example, a first passage P1, a second passage P2, and a third passage P3 may be formed. In addition, an inlet through which the heat exchange medium is introduced into the inflow portion 104 and an outlet through which the heat exchange medium is discharged from the outflow portion 105 may be provided at the same side of the core 100 in the direction in which the plurality of heat exchange plates are stacked.

[0055] Figure 8 and Fig. 9 is a cross-sectional view showing one side portion and the other side portion of an inner tube through which a refrigerant is introduced into a heat exchanger according to an embodiment of the present invention.

[0056] Reference Figure 8 , a catching groove 311 is concavely formed in the inner circumferential surface of the communication flow path of the refrigerant inlet flange 310, and a catching protrusion 410 protrudes from the outer circumferential surface of one side of the inner tube 400, so that when the inner tube 400 is inserted and assembled into the communication flow path of the refrigerant inlet flange 310, the catching protrusion 410 can be firmly inserted and coupled to the catching groove 311. In addition, a gradient 312 is formed on the communication flow path at one side where the inner tube 400 is inserted into the refrigerant inlet flange 310, so that the inner tube 400 can be easily inserted into the refrigerant inlet flange 310.

[0057] Reference Fig. 9 , the blocking portion 120 may include a first extending portion 121 and a second extending portion 122. The first extending portion 121 may extend from an end portion of the cup-shaped portion 110 of the first heat exchange plate 101a constituting the inflow portion 104 through which the refrigerant is introduced toward the inner tube 400 in a radial direction. The second extending portion 122 may extend from an end portion of the first extending portion 121 in a direction in which the inner tube 400 is inserted into the inflow portion 104. In addition, a portion where the first extending portion 121 and the second extending portion 122 are connected is formed in a shape that gradually becomes rounded in an outward direction of the curved shape, so that the inner tube 400 can be easily inserted into the blocking portion 120.

[0058] Furthermore, a swaged pipe portion 420 is formed at the other side of the inner pipe 400 inserted into the blocking part 120 and has a shape with an outer diameter decreasing toward an end so that the inner pipe 400 can be more easily inserted into the blocking part 120 .

[0059] Fig.10 is a cross-sectional view showing a baffle portion and an outlet side through which discharged refrigerant passes in a heat exchanger according to an embodiment of the present invention.

[0060] refer to Fig.10 , the baffle portion 130 of the second baffle 102 and the baffle portion 130 of the third baffle 103 may each have a structure in which a panel-shaped plate is blocked without the cup-shaped portion 110. In addition, the refrigerant outlet flange 320 may be connected to the outlet side through which the refrigerant is discharged from the outflow portion 105 of the core 100, and the refrigerant outlet flange 320 may be coupled to the outside of the core 100.

[0061] Furthermore, a coolant inlet pipe 210 and a coolant outlet pipe 220 may be coupled to the outside of the core 100 , the coolant inlet pipe 210 may be connected to a coolant inflow portion through which the coolant flows, and the coolant outlet pipe 220 may be connected to a coolant outflow portion through which the coolant is discharged.

[0062] In addition, the heat exchanger of the present invention may also include a first reinforcing plate 500 or a second reinforcing plate 600, the first reinforcing plate 500 can be stacked on one side of the core 100 and connected to one side of the core 100, and the second reinforcing plate 600 can be stacked on the other side of the core 100 and connected to the other side of the core 100, thereby strengthening the structural rigidity of the core 100.

[0063] In addition, the component elements constituting the heat exchanger of the present invention can be stacked and assembled, and then joined by brazing. In addition, among the surfaces joined to each other by brazing, a coating layer can be formed on at least the surfaces facing each other so that the surfaces can be easily joined.

[0064] In addition, in the heat exchanger of the present invention, the heat exchange medium may be a refrigerant and a coolant, and the heat exchanger may be a water-cooled condenser. In addition, in the core 100, as the refrigerant and the coolant exchange heat with each other, the refrigerant may be condensed. The gas-liquid separator (receiver dryer) applied to the water-cooled condenser in the related art may be disposed outside the core and connected to the refrigerant side.

[0065] Furthermore, the refrigerant inlet flange 310 and the refrigerant outlet flange 320 formed at one side of the core of the heat exchanger of the present invention may be coupled (brazed) to an integrated structure such as a refrigerant manifold or a coolant manifold that may be provided at one side of the core 100 .

[0066] The present invention is not limited to the above-mentioned embodiments, and the scope of application is different. Of course, various modifications and implementations can be made by any technician in the field to which the present invention belongs without departing from the subject matter of the present invention claimed in the claims.

[0067] [Description of Reference Signs]

[0068] 100: core, 101a: first heat exchange plate

[0069] 101b: second heat exchange plate, 101: first baffle

[0070] 102: second baffle, 103: third baffle

[0071] 110: cup-shaped portion, 120: blocking portion, 121: first extension portion

[0072] 122: second extension portion, 130: baffle portion, 210: coolant inlet pipe

[0073] 220: Coolant outlet pipe, 310: Refrigerant inlet flange

[0074] 320: Refrigerant outlet flange, 311: Stuck groove, 312: Gradient

[0075] 400: Inner tube, 410: Snap-on protrusion, 420: Swaged tube section

[0076] 500: first reinforcement plate, 600: second reinforcement plate

[0077] C1: Refrigerant flow path, C2: Coolant flow path

[0078] P1: first path, P2: second path, P3: third path

Claims

1. A heat exchanger, comprising: a core in which a flow path through which a heat exchange medium flows is formed between the heat exchange plates by stacking a plurality of heat exchange plates, and an inflow portion through which the heat exchange medium is introduced and an outflow portion through which the heat exchange medium is discharged are formed; and an isolation flow portion, the isolation flow portion being disposed in the inflow portion or the outflow portion of the core and configured to divide an internal space of the inflow portion or the outflow portion of the core to form a separate flow path for the heat exchange medium to flow through, Herein, an inlet through which the heat exchange medium is introduced into the inflow portion and an outlet through which the heat exchange medium is discharged from the outflow portion are provided at one side of the core portion.

2. The heat exchanger according to claim 1, further comprising: a partition provided in the inflow portion or the outflow portion of the core and configured to divide the internal space, Wherein, when the flow of the heat exchange medium passing through the heat exchange medium flow path in a direction toward one side or the other side is a passage, a plurality of passages are formed.

3. The heat exchanger according to claim 2, wherein: The heat exchange medium introduced into the core flows through the isolation flow portion and is then introduced into the first passage region.

4. The heat exchanger according to claim 2, wherein: The passage is formed into three passages.

5. The heat exchanger according to claim 1, wherein: The inlet through which the heat exchange medium is introduced into the inflow portion and the outlet through which the heat exchange medium is discharged from the outflow portion are provided at the same side in a direction in which the plurality of heat exchange plates of the core are stacked.

6. The heat exchanger according to claim 1, wherein: The partition is formed to intersect with a longitudinal direction in which the heat exchange medium flows along the inside of the inflow portion or the outflow portion, and an internal space of the inflow portion or the outflow portion is divided by the partition.

7. The heat exchanger according to claim 1, wherein: The partition flow portion is formed to correspond to a longitudinal direction in which the heat exchange medium flows along the inside of the inflow portion or the outflow portion, and an internal space of the inflow portion or the outflow portion is divided by the partition flow portion.

8. The heat exchanger according to claim 7, wherein: The partition flow portion divides a partial region of the inflow portion or the outflow portion in the longitudinal direction in which the heat exchange medium flows along the inside of the inflow portion or the outflow portion.

9. The heat exchanger according to claim 1, wherein: The separator includes: a blocking portion configured to block a portion of an interior of the inflow portion; and A baffle portion is provided at a position spaced apart from the blocking portion in the longitudinal direction and is configured to partition and block the interior of the outflow portion.

10. The heat exchanger according to claim 9, wherein: The isolation flow portion includes an inner tube that is inserted into the inflow portion and has one longitudinal side inserted into and coupled to the inlet of the inflow portion and the other longitudinal side inserted into and coupled to the blocking portion.

11. The heat exchanger according to claim 10, further comprising: An inlet flange is coupled to an inlet side of the inflow portion of the core and has a communication flow path into which one side of the inner tube is inserted and coupled to communicate with the communication flow path.

12. The heat exchanger according to claim 11, wherein A catching groove is concavely formed in an inner peripheral surface of the communication flow path of the inlet flange, a catching protrusion protrudes from an outer peripheral surface of one side of the inner tube, and the catching protrusion is inserted into and coupled to the catching groove.

13. The heat exchanger according to claim 10, wherein: The blocking portion comprises: a first extending portion extending in a radial direction from an interior of the inflow portion toward the inner tube; and A second extending portion extending from an end of the first extending portion in a direction of insertion into the inner tube.

14. The heat exchanger according to claim 13, wherein: A portion of the barrier portion where the first extension portion and the second extension portion are connected is formed in a circular shape.

15. The heat exchanger according to claim 13, wherein: A swaged pipe portion is formed at the other longitudinal side of the inner pipe inserted into the blocking portion, and the swaged pipe portion is formed in a shape in which an outer diameter decreases toward an end portion of the swaged pipe portion.

16. The heat exchanger according to claim 13, wherein: The plurality of heat exchange plates of the core have cup-shaped portions protruding from the periphery of a through hole penetrating two opposite surfaces of each of the plurality of heat exchange plates in a direction in which the heat exchange plates are stacked and configured to allow the heat exchange medium to flow therethrough, and Wherein, the blocking portion integrally extends from an end of the cup-shaped portion of the heat exchange plate.

17. The heat exchanger according to claim 9, wherein: The plurality of heat exchange plates of the core have through holes penetrating two opposite surfaces of each of the plurality of heat exchange plates and configured to allow the heat exchange medium to flow through the through holes, and The baffle portion is integrally formed into a shape in which a portion corresponding to the through hole of the heat exchange plate is blocked.

18. The heat exchanger according to claim 1, wherein: The core has flow paths for a plurality of heat exchange media to flow between the heat exchange plates, respectively formed by stacking the plurality of heat exchange plates, and the core has the inflow portion and the outflow portion through which the plurality of heat exchange media are introduced and discharged, and The partition and the isolation flow portion are formed in the inflow portion or the outflow portion through which any one of the plurality of heat exchange media flows.

19. The heat exchanger according to claim 18, wherein: The core is formed by stacking a plurality of first heat exchange plates and a plurality of second heat exchange plates, Wherein, the partition comprises: a blocking portion configured to block a portion of an interior of the inflow portion; and a baffle portion provided at a position spaced apart from the blocking portion in the longitudinal direction and configured to divide and block the interior of the outflow portion, wherein the blocking portion is integrated with the first heat exchange plate at a corresponding position, and Wherein, the baffle portion is integrated with the first heat exchange plate and the adjacent second heat exchange plate at corresponding positions.

Images