KR20240083475A - Heat exchanger - Google Patents

Abstract

In the present invention, in a heat exchanger where heat exchange occurs by forming passages through which a plurality of heat exchange media flow, two or more passage plates are stacked on the core portion to freely select the positions and directions of the inlet and outlet through which the heat exchange medium flows in and out. By doing so, the positions of the inlet and outlet of the heat exchange medium can be formed close to each other, and a heat exchanger that can be easily connected to an integrated manifold, etc. is provided.

Description

Heat exchanger {Heat exchanger}

The present invention relates to a heat exchanger in which a flow path through which a plurality of heat exchange media flows is formed so that the positions and directions of the inlet and outlet through which the heat exchange medium flows in and out of the heat exchanger where heat exchange occurs can be freely selected.

In recent years, as global interest in the environment and energy has increased in the automobile industry, research has been conducted to improve fuel efficiency, and research and development for lightweighting, miniaturization, and high functionality are continuously being conducted to satisfy the needs of various consumers.

In particular, in vehicle air conditioning systems, it is usually difficult to secure sufficient space inside the engine room, so the heat exchanger that constitutes the vehicle air conditioning system is required to be compact and have the function of increasing efficiency.

Therefore, in a conventional heat exchanger, for example, as shown in FIG. 1, a plurality of plates 50 are stacked to form independent flow paths for different heat exchange media, and the first heat exchange medium 14 flowing into the first inlet 10 is formed. ) flows along the first flow path 15 and is discharged to the first outlet 20, and the second heat exchange medium 34 flowing into the second inlet 30 flows along the second flow path 35. It is configured to be discharged to the second outlet portion 40, and is formed as a laminated plate type heat exchanger (1) in which heat exchange occurs between flowing heat exchange media.

Here, the conventional laminated plate heat exchanger as described above passes through a plurality of plates and forms a first flow path and a second flow path so that different heat exchange media alternately flow, so that the circumference of the opening of the plate is pressed to form a protruding shape. After forming the cup portion, the side parallel to the plate of the cup portion is laminated so that it is in contact with the plate and then joined by brazing. And the plates are joined with an inner fin interposed between them to improve heat exchange efficiency.

However, in the conventional stacked plate heat exchanger, the positions of the inlet and outlet through which the heat exchange medium flows are predetermined according to the shape of the plates to be stacked, so there is a limit to selecting the final location of the port connected to the inlet and outlet of the heat exchange medium. There is. In addition, if each port is connected to an integrated manifold rather than a structure that is connected to a hose or piping that can absorb dimensional errors, it is difficult or impossible to meet the level of assembly tolerance with only the conventional inlet and outlet arrangement and structure. This is the situation.

KR 10-2018-0092543 A (2018.08.20)

The present invention was created to solve the problems described above, and the object of the present invention is to provide an inlet and outlet through which heat exchange media is introduced and discharged, in a heat exchanger where heat exchange occurs by forming flow paths through which a plurality of heat exchange media flow. By allowing the position and direction to be freely selected, the positions of the inlet and outlet of the heat exchange medium can be formed close to each other, and an integrated manifold, etc. can be easily connected to the heat exchanger.

The heat exchanger of the present invention for achieving the above-described object includes a core portion each having flow paths through which a plurality of heat exchange media flows, and having an inlet through which the plurality of heat exchange media flows and an outlet through which the plurality of heat exchange media flow; a first flow plate laminated on a surface of the core portion where the inlet and outlet are formed, and having connection channels communicating with the inlet and outlet of the core portion, respectively; and a second passage plate stacked on the first passage plate and communicating with the connection channels to form an inlet port and an outlet port through which a plurality of heat exchange media flows. may include.

In addition, the connection channel of the first flow path plate may be formed to extend from a position corresponding to the inlet or outlet of the core part in communication to a position spaced apart in one or more of the longitudinal and width directions of the first flow path plate. there is.

Additionally, the connection channel of the first channel plate may be formed to penetrate both surfaces of the first channel plate in the thickness direction.

Additionally, the core portion may have a plurality of heat exchange plates stacked to form a flow path through which a plurality of heat exchange media flows.

Additionally, among the connection channels of the first flow plate, connection channels connected to the inlet and outlet through which the same heat exchange medium flows in the core portion may be formed close to each other.

Additionally, the inlet port and outlet port of one heat exchange medium and the inlet port and outlet port of the other heat exchange medium of the second flow path plate may be arranged close to one side in the longitudinal direction.

In addition, the second flow path plate may further include a flange that is stacked and coupled to a position corresponding to the inlet port and the outlet port through which the same heat exchange medium flows, and is integrally formed with a hole corresponding to and communicating with the inlet port and the outlet port. You can.

Additionally, a first flange connected to the inlet port and outlet port through which one heat exchange medium flows and a second flange connected to the inlet port and outlet port of the other heat exchange medium may be formed separately.

In addition, a first flange connected to the inlet port and outlet port through which one heat exchange medium flows and a second flange connected to the inlet port and outlet port of the other heat exchange medium may be formed as an integrated flange connected as one.

In addition, it further includes a third passage plate stacked between the surface of the core portion where the inlet and outlet are formed and the first passage plate, and the third passage plate includes an inlet of the core portion and an inlet port of the first passage plate. A communication hole may be formed that communicates with each other and communicates the discharge port of the core portion with the outlet port of the first flow path plate.

In addition, the first passage plate, the second passage plate, and the third passage plate each have at least a portion formed with an extension portion protruding outward in the longitudinal direction or width direction of the core portion, and is connected to the position of the extension portion of the first passage plate. A channel is formed to extend, and an inlet port and an outlet port may be formed in the extension part of the second flow path plate or the extension part of the third flow path plate.

In addition, the inlet port and outlet port of one heat exchange medium are disposed at corresponding positions inside the core part in the longitudinal and width directions, and the inlet port and outlet port of the other heat exchange medium are located in the longitudinal and width directions of the core part. It may be placed in the expansion portion, which is a position corresponding to the outer side in the width direction.

In addition, the third flow path plate may further include a flange that is stacked and coupled to a position corresponding to the inlet port and the outlet port through which the same heat exchange medium flows, and is integrally formed with a through hole communicating with the inlet port and the outlet port. You can.

In addition, it may further include an inner fin provided inside the connection channel of the first flow path plate to allow a heat exchange medium to pass therethrough.

Additionally, a flange may be coupled to one of the second extension portion of the second passage plate and the third extension portion of the third passage plate where the inlet port and the outlet port are formed, and the other may be closed.

The heat exchanger of the present invention has the advantage of being able to freely select the positions and directions of the inlet and outlet of the heat exchange medium.

In addition, the inlet and outlet of the heat exchange medium can be formed close to each other, so it is easy to connect to an integrated manifold, etc. and has the advantage of making the heat exchanger easy to manufacture.

Figures 1 and 2 are a perspective view and a cross-sectional view showing a conventional laminated plate type heat exchanger.
Figures 3 and 4 are an exploded perspective view and an assembled perspective view showing a heat exchanger according to the first embodiment of the present invention.
Figures 5 and 6 are exploded perspective views and assembled perspective views showing different shapes of the flange in the heat exchanger according to the first embodiment of the present invention.
Figure 7 is a perspective view showing the inner fin of the heat exchanger according to the first embodiment of the present invention.
Figures 8 and 9 are an exploded perspective view and an assembled perspective view showing a heat exchanger according to a second embodiment of the present invention.
Figures 10 and 11 are an exploded perspective view and an assembled perspective view showing a heat exchanger according to a third embodiment of the present invention.
Figures 12 and 13 are an exploded perspective view and an assembled perspective view showing different positions of the inlet port and outlet port of one heat exchange medium in the heat exchanger according to the third embodiment of the present invention.

Hereinafter, the heat exchanger of the present invention having the above-described configuration will be described in detail with reference to the attached drawings.

<Example 1>

Figures 3 and 4 are an exploded perspective view and an assembled perspective view showing a heat exchanger according to the first embodiment of the present invention.

As shown, the heat exchanger according to the first embodiment of the present invention may largely include a core portion 500, a first passage plate 100, and a second passage plate 200, and a flange and an inner fin 120. Any one or more of these may be further included. And, as an example, the heat exchanger according to the first embodiment of the present invention may be a heat exchanger in which heat is exchanged as different heat exchange media, a first heat exchange medium and a second heat exchange medium, flow. In addition, one of the first heat exchange medium and the second heat exchange medium is a refrigerant and the other is a coolant, and the heat exchanger of the present invention may be a water-cooled condenser in which the refrigerant can be condensed by exchanging heat with the coolant. Additionally, a plurality of flanges may be formed, one of which may be a flange through which refrigerant is introduced and discharged, and the other may be a flange through which coolant is introduced and discharged.

The core portion 500 may be formed by stacking a plurality of heat exchange plates and may be formed in a substantially rectangular parallelepiped shape. Here, the direction in which the plurality of heat exchange plates are stacked is the height direction, and when viewed from the top, the relatively longer direction may be the longitudinal direction, and the shorter length may be the width direction. In addition, in the core portion 500, two types of heat exchange plates of different shapes are alternately stacked, so that flow paths through which the first heat exchange medium and the second heat exchange medium can flow without mixing with each other can be formed alternately. In addition, the plurality of heat exchange plates of the core portion 500 are formed with holes penetrating both the upper and lower sides, and cup portions in the form of protruding upward or downward are formed in these holes, so that adjacent cup portions are connected to each other, thereby forming a first heat exchange medium flow path. They may communicate with each other and the second heat exchange medium flow paths may communicate with each other. In addition, the core portion 500 has a first inlet 510 through which the first heat exchange medium flows and a first outlet 520 through which the first heat exchange medium flows, and a second inlet 530 and an outlet through which the second heat exchange medium flows. A second outlet 540 may be formed. Here, the first inlet 510, first outlet 520, second inlet 530, and second outlet 540 may be arranged in various ways other than those shown.

The first channel plate 100 may be formed in the form of a plate whose thickness is thin compared to the length and width, and connection channels 110 penetrating both sides in the thickness direction of the first channel plate 100 may be formed. And the first flow path plate 100 may be laminated on one surface of the core portion 500. Here, the connection channel 110 of the first flow plate 100 is connected to the first inlet 510, first outlet 520, second inlet 530, and second outlet 540 of the core portion 500. They may be formed to correspond to each other and communicate with each other. In addition, at least some of the connection channels 110 are connected to the first flow path plate at the first inlet 510, first outlet 520, second inlet 530, and second outlet 540 of the core portion 500. It may be formed to extend to a spaced position in any one or more of the longitudinal direction and the width direction of (100). That is, as shown, the two connection channels 110 are in the form of circular holes corresponding to the inlet or outlet of the core part, and the remaining two connection channels may be formed in the form of slits with extended holes. Additionally, among the connection channels 110 of the first flow plate 100, connection channels connected to the inlet and outlet through which the same heat exchange medium flows in the core portion 500 may be formed close to each other.

The second channel plate 200 may be formed in the form of a plate whose thickness is thin compared to the length and width. The second channel plate 200 has two inlet ports 210 and two outlets penetrating both sides in the thickness direction. A port 220 may be formed. And the second flow path plate 200 may be stacked on the opposite side of the first flow path plate 200 facing the core portion 500. Here, the inlet port 210 and the outlet port 220 of the second flow path plate 200 may be formed to correspond to and communicate with the connection channel 110 of the first flow path plate 100. Here, the inlet port 210 and outlet port 220 of the first heat exchange medium may be formed close to each other, and the inlet port 210 and outlet port 220 of the second heat exchange medium may also be formed close to each other. In addition, the second flow path plate 200 has the inlet port 210 and outlet port 220 of the first heat exchange medium and the inlet port 210 and outlet port 220 of the second heat exchange medium close to one side in the longitudinal direction. It can be placed like this.

The flange may include a first flange 410 and a second flange 420, and the first flange 410 and the second flange 420 are each formed separately and coupled to the second flow plate 200. You can. And the first flange 410 and the second flange 420 are formed with two holes and are disposed at positions corresponding to the inlet port 210 and the outlet port 220 of the second flow path plate 200, so that the inlet port ( 210) and may be in communication with the outlet port 220.

Therefore, in the heat exchanger of the present invention, the positions and directions of the inlet and outlet of the plurality of heat exchange media can be freely selected, and the degree of freedom in heat exchanger design can be improved. Additionally, the inlet and outlet of the heat exchange medium can be formed close to each other, making it easy to connect to an integrated manifold, etc., and manufacturing the heat exchanger. In addition, the inlet port and outlet port of the heat exchange medium can be formed on the plate on which the flow path is formed, and as dimensional precision improves, it is processed into a block shape to create a flange to meet assembly tolerances when assembling to connect to the inlet port and outlet port. Because it is easy, it can be easy to assemble the flange by fitting it to the inlet port and outlet port.

Figures 5 and 6 are exploded perspective views and assembled perspective views showing different shapes of the flange in the heat exchanger according to the first embodiment of the present invention.

As shown, the flange is connected to the first flange 410 connected to the inlet port 210 and outlet port 220 through which the first heat exchange medium flows, and the inlet port 210 and outlet port 220 of the second heat exchange medium. The connected second flange 420 may be formed as an integrated flange 430 connected as one. That is, when the first flange 410 and the second flange 420 are placed close to each other, they can be formed into an integrated flange 430 that is integrally connected and coupled to the second flow path plate 200.

Figure 7 is a perspective view showing the inner fin of the heat exchanger according to the first embodiment of the present invention.

As shown, the heat exchanger of the present invention may further include an inner fin 120 that is provided inside the connection channel 110 of the first flow path plate 100 and allows the heat exchange medium to pass therethrough. The inner fin 120 may be formed to correspond to the shape of the connection channels 110, and the inner fin 120 allows the heat exchange medium to flow smoothly along the connection channel 110 and also increases the contact area with the heat exchange medium. It can be formed in various forms that can be increased. In addition, the inner pin 120 may be interposed between the core portion 500 and the second passage plate 200 to be contacted and coupled while being provided inside the connection channel 110 of the first passage plate 100. there is. Therefore, the heat exchange efficiency can be improved by the inner fin, and the structural rigidity and pressure resistance of the heat exchanger can be improved. For example, an inner fin can be used to supplement rigidity when the pressure of the heat exchange medium is high.

<Example 2>

Figures 8 and 9 are an exploded perspective view and an assembled perspective view showing a heat exchanger according to a second embodiment of the present invention.

As shown, the heat exchanger according to the second embodiment of the present invention may largely include a core portion 500, a first passage plate 100, a second passage plate 200, and a third passage plate 300. .

The core portion 500 may be formed in the same manner as the first embodiment described above.

The first flow path plate 100 and the second flow path plate 200 may be formed in the same manner as the first embodiment described above.

The third channel plate 300 may be formed in the form of a plate whose thickness is thin compared to the length and width, and four communication holes 330 penetrating both sides in the thickness direction may be formed in the third channel plate 200. there is. Additionally, the third passage plate 300 may be stacked between the first passage plate 200 and the core portion 500. Here, the communication hole 330 is connected to the first inlet 510, the first outlet 520, the second inlet 530, the second outlet 540, and the first flow path plate 100 of the core part 500. The corresponding connection channel 110 can be communicated. In addition, the first passage plate 100, the second passage plate 200, and the third passage plate 300 each have at least a portion formed as an extension protruding outward in the longitudinal or width direction of the core portion 500. It can be. For example, the first passage plate 100, the second passage plate 200, and the third passage plate 300 are first extensions that protrude outward from the core portion 500 in the width direction at corresponding positions. A portion 150, a second expansion portion 250, and a third expansion portion 350 may be formed. And the connection channel 110 of the first passage plate 100 may be formed to extend to the position of the first extension 150, and the inlet port ( 210) and an outlet port 220 may be formed. Additionally, the third extension portion 350 of the third flow path plate 300 may be formed in the form of a closed plate. Here, one inlet port 210 and the outlet port 220 may be disposed at positions corresponding to the inside of the core portion 500 in the longitudinal and width directions, and the other inlet port 210 and the outlet port 220 may be disposed at a position corresponding to the second expanded portion 250 outside the core portion 500 in the longitudinal and width directions.

Therefore, the degree of freedom in selecting the positions of the inlet port through which the heat exchange medium flows in and the outlet port through which the heat exchange medium is discharged can be further increased. Additionally, it can be very easy to change the positions of the inlet port and outlet port.

Additionally, the heat exchanger according to the second embodiment of the present invention may further include a flange, similar to the first embodiment described above. The flange may include a first flange 410 and a second flange 420, and the first flange 410 and the second flange 420 are each formed separately and coupled to the second flow plate 200. You can. It may further include an inner fin 120 provided inside the connection channel 110 of the first flow path plate 100 to allow the heat exchange medium to pass therethrough.

<Example 3>

Figures 10 and 11 are an exploded perspective view and an assembled perspective view showing a heat exchanger according to a third embodiment of the present invention.

As shown, one inlet port 310 and one outlet port 320 may be formed in the third extension 350 of the third flow path plate 300. Here, the connection channel 110 of the first passage plate 100 may be formed to extend to the position of the first extension 150, and the second extension 250 of the second passage plate 200 may be blocked. It may be formed in a plate shape. And another inlet port 210 and an outlet port 220 may be formed in the second flow path plate 200 and may be disposed at corresponding positions inside the core portion 500 in the longitudinal and width directions. there is.

Therefore, the heat exchanger according to the third embodiment of the present invention can be easily formed so that the direction in which the inlet port and outlet port of the first heat exchange medium face and the direction in which the inlet port and outlet port of the second heat exchange medium face are opposite to each other. there is.

Figures 12 and 13 are an exploded perspective view and an assembled perspective view showing different positions of the inlet port and outlet port of one heat exchange medium in the heat exchanger according to the third embodiment of the present invention.

As shown, the first extension 150, the second extension 250, and the third extension 350 of the first passage plate 100, the second passage plate 200, and the third passage plate 300. ) may be formed differently, and the shape of the connection channel 110 of the first flow path plate 100 may be formed differently accordingly.

Additionally, the heat exchanger according to the third embodiment of the present invention may further include a flange, similar to the second embodiment described above. The flange may include a first flange 410 and a second flange 420, and the first flange 410 and the second flange 420 are formed separately, so that the first flange 410 is connected to the second flow path. It may be coupled to the plate 200 and the second flange 420 may be coupled to the third flow path plate 300. It may further include an inner fin 120 provided inside the connection channel 110 of the first flow path plate 100 to allow the heat exchange medium to pass therethrough.

And in various embodiments of the heat exchanger of the present invention, the components can be assembled by stacking and then joined by brazing. Additionally, a clad layer can be formed on at least one side of the surfaces to be joined to each other by brazing, thereby facilitating joining.

The present invention is not limited to the above-described embodiments, and the scope of application is diverse, and anyone skilled in the art can do so without departing from the gist of the invention as claimed in the claims. Of course, various modifications are possible.

100: first euro plate 110: connection channel
120: Inner pin 150: First extension
200: second euro plate 210: inlet port
220: outlet port 250: second extension
300: Third Euro Plate 310: Inlet Port
320: outlet port 330: communication hole
350: Third extension
410: first flange 420: second flange
430: integrated flange
500: Core portion 510: First inlet
520: first outlet 530: second inlet
540: Second outlet

Claims (15)

A core portion in which a plurality of heat exchange plates are stacked to form a flow path through which a heat exchange medium flows between the heat exchange plates, and an inlet through which the heat exchange medium flows in and an outlet through which the heat exchange medium flows are formed;
a first flow plate that is stacked together with the core portion in which the inlet and outlet are formed, and has connection channels communicating with the inlet and outlet of the core portion, respectively; and
a second channel plate stacked on one surface of the first channel plate, covering and blocking at least a portion of the connection channel, and having an inlet port and an outlet port in communication with the connection channels through which a heat exchange medium flows;
A heat exchanger containing a.
According to paragraph 1,
The connection channel of the first flow path plate is characterized in that it extends from a position corresponding to the inlet or outlet of the core part in communication to a position spaced apart in one or more of the longitudinal and width directions of the first flow path plate. heat exchanger.
According to paragraph 1,
A heat exchanger, characterized in that the connection channel of the first flow path plate is formed through both surfaces in the thickness direction of the first flow path plate.
According to paragraph 1,
A heat exchanger, wherein the core portion is stacked with a plurality of heat exchange plates to each form a flow path through which a plurality of heat exchange media flows.
According to clause 4,
A heat exchanger, wherein among the connection channels of the first flow plate, connection channels connected to the inlet and outlet through which the same heat exchange medium flows in the core portion are formed close to each other.
According to clause 4,
A heat exchanger, wherein the inlet port and outlet port of one heat exchange medium of the second flow path plate and the inlet port and outlet port of the other heat exchange medium are arranged close to one side in the longitudinal direction.
According to clause 4,
A heat exchanger further comprising a flange that is laminated and coupled to positions corresponding to the inlet port and outlet port through which the same heat exchange medium of the second flow path plate flows, and is integrally formed with a hole communicating with the inlet port and the outlet port. .
In clause 7,
A heat exchanger characterized in that a first flange connected to the inlet port and outlet port through which one heat exchange medium flows and a second flange connected to the inlet port and outlet port of the other heat exchange medium are formed separately.
In clause 7,
A heat exchanger characterized in that the first flange connected to the inlet port and outlet port through which one heat exchange medium flows and the second flange connected to the inlet port and outlet port of the other heat exchange medium are formed as an integrated flange connected as one.
According to paragraph 1,
It further includes a third passage plate stacked between the surface of the core portion where the inlet and outlet are formed and the first passage plate,
A heat exchanger characterized in that a communication hole is formed in the third passage plate to communicate the inlet port of the core portion with the inlet port of the first passage plate and to communicate the outlet port of the core portion with the outlet port of the first passage plate.
According to clause 10,
The first passage plate, the second passage plate, and the third passage plate are each formed with at least a portion of an extension protruding outward from the core portion in the longitudinal or width direction,
A connection channel is formed extending to the position of the first extension of the first flow path plate,
A heat exchanger, characterized in that an inlet port and an outlet port are formed in the second extension of the second passage plate or the third extension of the third passage plate.
According to clause 11,
The inlet port and outlet port of one heat exchange medium are disposed at corresponding positions inside the core portion in the longitudinal and width directions, and the inlet port and outlet port of the other heat exchange medium are disposed at corresponding positions in the longitudinal and width directions of the core portion. A heat exchanger characterized in that it is disposed in an expansion portion corresponding to the outside.
According to clause 11,
A heat exchanger further comprising a flange that is laminated and coupled to positions corresponding to the inlet port and outlet port through which the same heat exchange medium of the third flow path plate flows, and is integrally formed with a through hole communicating with the inlet port and the outlet port. .
According to paragraph 1,
A heat exchanger further comprising an inner fin provided inside the connection channel of the first flow plate and allowing a heat exchange medium to pass therethrough.
According to clause 11,
A heat exchanger, wherein a flange is coupled to one of the second extension of the second passage plate and the third extension of the third passage plate, where the inlet port and the outlet port are formed, and the other is closed.

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