KR20240053389A - Heat Exchanger - Google Patents

Abstract

The present invention relates to a heat exchanger in which a connection flange connecting a plate heat exchanger and a refrigerant manifold is provided integrally with the plate heat exchanger, thereby ensuring ease of assembly between the plate heat exchanger and the refrigerant manifold.

Description

Heat Exchanger

The present invention relates to a heat exchanger in which a connection flange connecting a plate heat exchanger and a refrigerant manifold is provided integrally with the plate heat exchanger, thereby ensuring ease of assembly between the plate heat exchanger and the refrigerant manifold.

In general, a vehicle air conditioning system is a device for cooling or heating the vehicle interior by introducing air from outside the vehicle into the vehicle interior or heating or cooling the air in the vehicle interior during circulation. The interior of the air conditioning case is equipped with a cooling device for cooling. An evaporator, a heater core for heating, and air cooled or heated by the evaporator or heater core are selectively blown to each part of the vehicle interior using a door for switching the blowing mode.

A plate-type heat exchanger has been published in the previously filed Korean Patent No. 10-1151758. Figure 1 is a perspective view showing a conventional water-cooled heat exchanger, and Figure 2 is a diagram schematically showing the configuration of a conventional water-cooled heat exchanger.

Referring to Figures 1 and 2, a conventional water-cooled heat exchanger (9) is made by stacking a plurality of plates (1), and has a refrigerant inlet (2) through which the refrigerant flows on one side and a refrigerant outlet (2) through which the refrigerant is discharged. In addition to the formation of 3), a coolant inlet 4 through which coolant flows in and a coolant outlet 5 through which coolant discharges are formed. A plurality of plates 1 are stacked to form a refrigerant flow path and a coolant flow path therein.

The refrigerant flowing into the refrigerant inlet 2 flows through the refrigerant passage formed by the plate 1 and is discharged to the refrigerant outlet 3, thereby forming a refrigerant flow path 7 as shown in FIG. 2. In addition, the coolant flowing into the coolant inlet 4 flows through the coolant flow path formed by the plate 1 and is discharged to the coolant outlet 5, thereby forming the coolant flow path 8 as shown in FIG. 2. The refrigerant in the refrigerant flow path (7) and the coolant in the coolant flow path (8) exchange heat with each other.

Meanwhile, conventionally, the inlet/outlet of the refrigerant/coolant of the plate heat exchanger is configured separately and each is assembled separately from the other parts (for example, AC pipes, coolant hoses, etc.). Figure 3 is a diagram showing the assembly structure of a conventional plate heat exchanger. As shown, the AC pipe (P1), the coolant hose (P2), etc. are assembled to the plate heat exchanger (9).

In this regard, recently, as refrigerant/coolant modularization has progressed, an integrated structure has been proposed in which multiple AC pipes are composed of one manifold and assembled with a plate heat exchanger. The integrated cooling module has a structure in which each heat exchange component, including a heat exchanger, such as a chiller and an accumulator, is mounted and assembled on a refrigerant manifold at the center to form one integrated cooling module.

At this time, conventionally, there is no great difficulty in assembling each AC pipe into a plate heat exchanger, but in recent cases where a manifold structure is applied, there is difficulty in assembling the heat exchanger into a manifold due to component processing tolerances, core manufacturing tolerances, etc. am.

Korean Patent No. 10-1151758 (registered on May 24, 2012)

The present invention was developed to solve the above problems, and the connection flange connecting the plate heat exchanger and the refrigerant manifold is provided integrally with the plate heat exchanger, thereby ensuring ease of assembly between the plate heat exchanger and the refrigerant manifold. The purpose is to provide energy.

A heat exchanger according to an example of the present invention includes a plate heat exchanger including a core portion in which a plurality of plates are stacked to exchange heat with a heat exchange medium, and a top plate disposed on an upper portion of the core portion; and a connection flange provided on the top plate and coupled to an external component, wherein the connection flange includes a body, an inlet pipe formed on one side of the body through which refrigerant flows, and formed on the other side of the body. Includes an outlet pipe through which the refrigerant is discharged.

At least one of the inlet pipe and the outlet pipe of the connection flange is horizontally spaced apart from the refrigerant inlet or refrigerant outlet of the top plate, and a refrigerant channel through which refrigerant flows is formed inside the body, and through the refrigerant channel. The inlet pipe of the connection flange may communicate with the refrigerant inlet of the top plate, or the outlet pipe of the connection flange may communicate with the refrigerant outlet of the top plate.

The top plate has a refrigerant inlet formed on one side of the top plate through which refrigerant flows in, and a refrigerant outlet formed on the other side of the top plate through which refrigerant flows out. The body of the connection flange is formed at the refrigerant inlet of the top plate. It may be configured to connect the refrigerant outlet.

Among the bodies of the connection flange, a predetermined area around the inlet pipe is called a first body part, a predetermined area around the outlet pipe is called a second body part, and the area where the refrigerant channel is formed is called a channel part. The thickness may be formed to be smaller than that of the first body portion and the second body portion.

A gasket may be disposed between the top plate and the connection flange.

A fastening ring protruding outward from the body is formed on the body of the connection flange, a fastening groove into which the fastening ring can be inserted is formed on the top plate, and the connection flange is fastened to the fastening groove of the top plate. The rings may be inserted and configured to be fastened to each other.

The connection flange may be seated on the upper surface of the top plate.

At least one of the refrigerant inlet and the refrigerant outlet of the top plate is burred upward, and the end of the inlet pipe is inserted and brazed into the refrigerant inlet having the burred structure, or the end of the inlet pipe is inserted into the refrigerant outlet having the burred structure. The end of the outlet pipe can be inserted and brazed.

The top plate has a refrigerant inlet formed on one side of the top plate through which refrigerant flows in, and a refrigerant outlet formed on the other side of the top plate through which refrigerant flows out. The body of the connection flange is formed at the refrigerant inlet of the top plate. and a refrigerant outlet, wherein the inlet pipe of the connecting flange is disposed vertically above the refrigerant inlet of the top plate and directly communicates with the refrigerant inlet, and the outlet pipe of the connecting flange is connected to the refrigerant outlet of the top plate. It may be disposed at the vertical top and directly communicated with the refrigerant inlet.

Among the bodies of the connection flange, a predetermined area around the inlet pipe is called a first body part, a predetermined area around the outlet pipe is called a second body part, and an area corresponding to the first body part and the second body part is called a second body part. Speaking of the connection part, the connection part may be formed to have a thickness smaller than that of the first body part and the second body part.

A clad sheet is disposed between the connection part and the top plate so that the connection part and the top plate can be brazed.

An insertion hole with a structure corresponding to the connection flange is formed in the top plate so that the connection flange can be inserted, and the connection flange can be inserted into the insertion hole of the top plate.

The insertion hole of the top plate is structured to extend from the refrigerant inlet of the core part to the refrigerant outlet so that the refrigerant inlet and refrigerant outlet of the core part are located inside, and the body of the connecting flange is connected to the refrigerant inlet and the refrigerant outlet of the core part. It may be configured to connect a refrigerant outlet.

At least one of the inlet pipe and the outlet pipe of the connection flange is horizontally spaced apart from the refrigerant inlet or refrigerant outlet of the core portion, and a refrigerant channel through which refrigerant flows is formed inside the body, and the refrigerant channel is formed through the refrigerant channel. The inlet pipe of the connection flange may be in communication with the refrigerant inlet of the core section, or the outlet pipe of the connection flange may be in communication with the refrigerant outlet of the core section.

The top plate is formed with a cover part that protrudes upward to a predetermined extent, and an insertion hole having a structure corresponding to the connection flange is formed in the cover part so that the connection flange can be inserted, and the connection flange is formed in the insertion hole of the cover part. can be inserted.

At least one of the inlet pipe and the outlet pipe of the connection flange is horizontally spaced apart from the refrigerant inlet or refrigerant outlet of the core part, and a refrigerant channel through which refrigerant flows is formed inside the cover part, and the refrigerant channel is formed through the refrigerant channel. The inlet pipe of the connection flange may be in communication with the refrigerant inlet of the core section, or the outlet pipe of the connection flange may be in communication with the refrigerant outlet of the core section.

The connection flange may be brazed to the top plate and may be integrally formed with the top plate.

The inlet pipe and the outlet pipe may each have a structure that protrudes upward from the body.

At least one bolt fastening groove formed in a vertical direction may be formed in the body of the connection flange.

The external component may be a refrigerant manifold through which refrigerant flows.

According to the present invention, the top plate of the plate heat exchanger is integrally provided with a connection flange for connection to the refrigerant manifold, thereby ensuring ease of assembly between the plate heat exchanger and the refrigerant manifold.

In addition, freedom in the structure and manufacturing design of each connection flange and refrigerant manifold can be improved.

Figure 1 is a perspective view showing a conventional water-cooled heat exchanger.
Figure 2 is a diagram schematically showing the configuration of a conventional water-cooled heat exchanger.
Figure 3 is a diagram showing the assembly structure of a conventional plate heat exchanger.
Figure 4 is a perspective view of a heat exchanger according to the first embodiment.
Figure 5 is an exploded perspective view of the heat exchanger of Figure 4.
Figure 6 is a top perspective view of the top plate of Figure 4;
Figure 7 is a lower perspective view of the top plate of Figure 4;
Figure 8 is a top perspective view of the connecting flange of Figure 4;
Figure 9 is a lower perspective view of the connecting flange of Figure 4;
Figure 10 is a cross-sectional view of the heat exchanger of Figure 4.
Figure 11 is a perspective view of a heat exchanger according to the second embodiment.
Figure 12 is an exploded perspective view of the heat exchanger of Figure 11.
Figure 13 is a top perspective view of the top plate of Figure 11;
Figure 14 is a lower perspective view of the top plate of Figure 11.
Figure 15 is a top perspective view of the connecting flange of Figure 11;
Figure 16 is a lower perspective view of the connecting flange of Figure 11;
Figure 17 is a cross-sectional view of the heat exchanger of Figure 11.
Figure 18 is a perspective view of a heat exchanger according to the third embodiment.
Figure 19 is an exploded perspective view of the heat exchanger of Figure 18.
Fig. 20 is a top perspective view of the top plate of Fig. 18;
Figure 21 is a lower perspective view of the top plate of Figure 18.
Figure 22 is a top perspective view of the connecting flange of Figure 18;
Figure 23 is a lower perspective view of the connecting flange of Figure 18;
Figure 24 is a cross-sectional view of the heat exchanger of Figure 18.
Figure 25 is a perspective view of a heat exchanger according to the third embodiment.
Figure 26 is an exploded perspective view of the heat exchanger of Figure 25.
Figure 27 is a top perspective view of the top plate of Figure 25;
Fig. 28 is a lower perspective view of the top plate of Fig. 25;
Figure 29 is a top perspective view of the connecting flange of Figure 25;
Figure 30 is a lower perspective view of the connecting flange of Figure 25;
Figure 31 is a cross-sectional view of the heat exchanger of Figure 25.

Hereinafter, the present invention will be described with reference to the attached drawings.

4 to 10 are views showing a heat exchanger according to the first embodiment of the present invention, FIG. 4 is a perspective view of the heat exchanger according to the first embodiment, FIG. 5 is an exploded perspective view of the heat exchanger of FIG. 4, and FIG. 6 is a top perspective view of the top plate of Figure 4, Figure 7 is a bottom perspective view of the top plate of Figure 4, Figure 8 is a top perspective view of the connection flange of Figure 4, Figure 9 is a bottom perspective view of the connection flange of Figure 4, Figure 10 is a cross-sectional view of the heat exchanger of Figure 4.

The heat exchanger 10 of the present invention largely includes a plate heat exchanger 100 and a connection flange 200.

The plate heat exchanger 100 has a structure in which a plurality of plates are stacked to exchange heat between a refrigerant and cooling water, and is also commonly referred to as a water-cooled heat exchanger. Since the general structure and operating principle of the plate heat exchanger are already known, detailed description thereof will be omitted.

The plate heat exchanger 100 includes a core portion 190 through which heat exchange media is exchanged, and a top plate 110 disposed on the core portion 190. The core portion 190 is formed by stacking a plurality of plates to exchange heat with a heat exchange medium. The heat exchange medium may be a refrigerant or a coolant, and the core portion 190 is configured to alternately flow the refrigerant and the coolant between the stacked plates, so that heat exchange occurs between the refrigerant and the coolant. The top plate 110 has a different configuration from the plates of the core portion 190 and corresponds to a type of cover provided on the top of the core portion 190.

The top plate 110 may be formed with a refrigerant inlet 120 through which refrigerant flows into the core portion 190 from the outside and a refrigerant outlet 130 through which refrigerant is discharged from the core portion 190 to the outside. Additionally, in addition to the refrigerant inlet 120 and the refrigerant outlet 130, the top plate 110 may be formed with a coolant inlet 120C through which coolant flows in and a coolant outlet 130C through which coolant is discharged, and the coolant inlet 120C A coolant inlet pipe 120CP may be coupled to the coolant outlet 130C, and a coolant outlet pipe 130CP may be coupled to the coolant outlet 130C.

The arrangement structure of the refrigerant inlet 120, refrigerant outlet 130, coolant inlet 120C, and coolant outlet 130C of the plate heat exchanger 100 can be freely modified, and the positions of the inlet and outlet are reversed. It can be. However, it is preferable that the refrigerant inlet 120 and the refrigerant outlet 130 be formed in a straight line on the top plate 110 in terms of assembly with the connection flange 200. For example, as shown, the refrigerant inlet 120 and the refrigerant outlet 130 may be disposed on one end and the other end of the top plate 110, respectively, and arranged in a straight line with each other.

The connection flange 200 is provided on the top of the top plate 110 and is fastened to an external component. The external component may be a refrigerant manifold through which refrigerant flows, as described above. That is, the connection flange 200 corresponds to an assembly structure that serves as a medium when mounting the plate heat exchanger 100 on the refrigerant manifold. To this end, a bolt fastening groove 235 may be formed in the connection flange 200, and the connection flange 200 may be bolted to the refrigerant manifold using the bolt fastening groove 235. At least one bolt fastening groove 235 may be formed in a vertical direction on the body 210 of the connection flange 200 and may be formed to penetrate the body 210. As the connection flange 200 is provided in the plate heat exchanger 100 in this way, when assembling the plate heat exchanger 100 to the refrigerant manifold, difficulties in assembly due to processing or manufacturing tolerances can be resolved.

The connection flange 200 includes a body 210, an inlet pipe 220 disposed on one side of the body 210, and an outlet pipe 230 disposed on the other side of the body 210. The inlet pipe 220 and the outlet pipe 230 may each refer to a pipe penetrating the body 210, and may together refer to a structure that extends outward and protrudes from the corresponding pipe formed in the body 210.

The body 210 may be made of the same material as the top plate 110, for example, a metal material.

The inlet pipe 220 of the connection flange 200 communicates with the refrigerant inlet 120 of the top plate 110 or the refrigerant inlet 120C of the core part 190, and the outlet pipe of the connection flange 200 230 may communicate with the refrigerant outlet 130 of the top plate 110 or with the refrigerant outlet 130C of the core part 190. The refrigerant inlet 120C and the refrigerant outlet 130C of the core part 190 may refer to the refrigerant inlet and refrigerant outlet formed in the above-mentioned plates constituting the core part 190, respectively, and more specifically, This may refer to the refrigerant inlet and refrigerant outlet of the top plate located on the top layer within the core portion 190.

Accordingly, the refrigerant flowing from the refrigerant manifold flows through the inlet pipe 220 of the connection flange 200 and flows into the core portion (120, 120C) of the top plate 110 or the core portion 190. The refrigerant flowing into the inside of 190 and discharged from the core portion 190 is discharged through the refrigerant discharge ports 130 and 130C of the top plate 110 or the core portion 190 and is discharged through the outlet pipe of the connection flange 200. 230) and is discharged to the refrigerant manifold. That is, the connection flange 200 couples the plate heat exchanger 100 and the refrigerant manifold and mediates the flow of refrigerant between the plate heat exchanger 100 and the refrigerant manifold.

The inlet pipe 220 and the outlet pipe 230 of the connection flange 200 may each have a structure that protrudes upward from the body 210, and the protruding portions of the inlet pipe 220 and the outlet pipe 230 It can be inserted and coupled to each of the refrigerant inlet (not shown) and the refrigerant outlet (not shown) of the refrigerant manifold. This has advantages in terms of ease of connection with the refrigerant manifold and prevention of refrigerant leakage. On the other hand, although not shown, unlike this, the inlet pipe 220 and the outlet pipe 230 of the connection flange 200 do not protrude, and the refrigerant inlet and refrigerant outlet of the refrigerant manifold each have a pipe structure that protrudes to the outside, The refrigerant inlet and refrigerant outlet of the refrigerant manifold may be configured to be respectively inserted into the inlet pipe 220 and outlet pipe 230 of the connection flange 200.

The first embodiment of the present invention will be described in more detail with reference to FIGS. 4 to 10 as follows.

This embodiment has a structure in which the connection flange 200 is seated on the upper surface of the top plate 110. In addition, the top plate 110 has a refrigerant inlet 120 formed on one side of the top plate 110 through which refrigerant flows, and a refrigerant outlet 130 formed on the other side of the top plate 110 through which refrigerant is discharged. do.

Based on this structure, in this embodiment, the body 210 has an overall plate-shaped structure and is configured to connect the refrigerant inlet 120 and the refrigerant outlet 130. That is, the body 210 has a structure extending from the refrigerant inlet 120 to the refrigerant outlet 130.

And the inlet pipe 220 of the connection flange 200 is disposed vertically above the refrigerant inlet 120 of the top plate 110, and the outlet pipe 230 of the connection flange 200 is disposed in the vertical upper part of the refrigerant inlet 120 of the top plate 110. It is disposed vertically above the outlet 130.

This structure corresponds to the most intuitive fastening structure between the refrigerant inlet 120 and the inlet pipe 220, and the refrigerant outlet 130 and the outlet pipe 230, and has the advantage of manufacturing the body 210 with a simple structure. There is.

Referring to FIG. 10, a predetermined area around the inlet pipe 220 of the body 210 is called a first body part 210A, and a predetermined area around the outlet pipe 230 is called a second body part 210B. If the area corresponding to the first body part and the second body 210 is referred to as the connection part 210C, the connection part will be formed to have a thickness smaller than that of the first body 210 and the second body 210. You can. This can help reduce the weight and manufacturing cost of the connection flange 200. In addition, the above-described bolt fastening groove 235 may be formed in the first body portion 210A and the second body portion 210B that are formed to be relatively thick.

The connection flange 200 may be brazed to the top plate 110 to be integrated with the plate heat exchanger 100. For example, as in the present embodiment, the refrigerant inlet 120 and the refrigerant outlet 130 each have a structure in which the top plate 110 is burred, and the burred refrigerant inlet 120 has an inlet pipe ( The end of the 220 may be inserted and brazed, and the end of the outlet pipe 230 may be inserted into the burred refrigerant outlet 130 and brazed.

Furthermore, the connection portion 210C of the body 210 described above may also be brazed with the top plate 110. In the case of this embodiment, since the body 210 is formed in a long structure, in addition to brazing the inlet pipe 220 and the outlet pipe 230, or one end and the other end of the body 210, the middle of the body 210 There is a need to supplement the coupling force of the connection portion 210C located at. To this end, a separate welding member 300, for example, a clad sheet, is placed between the connection portion 210C and the top plate 110, and the connection portion and the top plate 110 are brazed through the clad sheet to form a connection flange ( The fastening force between 200) and the top plate 110 can be increased.

Next, we will look at the heat exchanger according to the second embodiment of the present invention. Figures 11 to 17 are views showing a heat exchanger according to a second embodiment of the present invention, Figure 11 is a perspective view of the heat exchanger according to the second embodiment, Figure 12 is an exploded perspective view of the heat exchanger of Figure 11, and Figure 13 is a top perspective view of the top plate of Figure 11, Figure 14 is a bottom perspective view of the top plate of Figure 11, Figure 15 is a top perspective view of the connection flange of Figure 11, Figure 16 is a bottom perspective view of the connection flange of Figure 11, Figure 17 is a cross-sectional view of the heat exchanger of Figure 11.

This embodiment, like the first embodiment, has a structure in which the connection flange 200 is seated on the upper surface of the top plate 110. In addition, the top plate 110 has a refrigerant inlet 120 formed on one side of the top plate 110 through which refrigerant flows, and a refrigerant outlet 130 formed on the other side of the top plate 110 through which refrigerant is discharged. do.

Based on this structure, in this embodiment, the body 210 has an overall plate-shaped structure and is configured to connect the refrigerant inlet 120 and the refrigerant outlet 130. That is, in this embodiment, the body 210 has a structure extending from the refrigerant inlet 120 to the refrigerant outlet 130 as in the first embodiment.

However, unlike the first embodiment, in this embodiment, at least one of the inlet pipe 220 and the outlet pipe 230 is spaced apart from the refrigerant inlet 120 or the refrigerant outlet 130 in the horizontal direction. That is, in the first embodiment, the inlet pipe 220 and the outlet pipe 230 are disposed vertically above the refrigerant inlet 120 and the refrigerant outlet 130, respectively, whereas in the present embodiment, the inlet pipe 220 and the outlet pipe 230 are disposed vertically above the refrigerant inlet 120 and the refrigerant outlet 130. At least one of the pipes 230 is not disposed vertically above the refrigerant inlet 120 or the refrigerant outlet 130.

For example, as shown, in this embodiment, the inlet pipe 220 is disposed vertically above the refrigerant inlet 120, and the outlet pipe 230 is eccentric from the refrigerant outlet 130 to be spaced apart in the horizontal direction. It can be placed close to the inlet pipe 220. Alternatively, although not shown, in contrast, the outlet pipe 230 is disposed vertically above the refrigerant outlet 130, and the inlet pipe 220 is knitted from the refrigerant inlet 120 to be spaced apart in the horizontal direction to form an outlet pipe 230. ) can be placed close to. Alternatively, although not shown, both the inlet pipe 220 and the outlet pipe 230 are eccentric from the refrigerant inlet 120 and the refrigerant outlet 130 and are spaced apart in the horizontal direction so as to be close to the center of the body 210. can be placed.

In addition, a refrigerant channel 215 through which the refrigerant flows is formed inside the body 210, and the inlet pipe 220 formed to be spaced apart from the refrigerant inlet 120 communicates with the refrigerant inlet 120 through the refrigerant channel 215. Alternatively, the outlet pipe 230 formed to be spaced apart from the refrigerant outlet 130 may communicate with the refrigerant outlet 130. The refrigerant channel 215 may be formed inside the body 210 as shown in FIG. 16 with the lower part of the body 210 open, and the open lower part of the body 210 may be formed in the top plate 110. A channel may be formed by being closed by the upper surface. Although not shown, it is of course possible to form a channel in the center of the body 210 without opening the lower portion of the body 210.

Referring to FIG. 17, the inlet pipe 220 is disposed vertically above the refrigerant inlet 120 and communicates directly with the refrigerant inlet 120, and the outlet pipe 230 is spaced apart from the refrigerant outlet 130 in the horizontal direction. It is disposed inside the body 210, and a refrigerant channel 215 is formed in which one side is connected to the outlet pipe 230 and the other side is connected to the refrigerant outlet 130, and the refrigerant channel 215 on the outlet side is formed. The outlet pipe 230 and the refrigerant outlet 130 may be configured to communicate with each other. Meanwhile, of course, the same structure can be applied even when the inlet pipe 220 is spaced apart from the refrigerant inlet 120.

That is, when the inlet pipe 220 is spaced apart from the refrigerant inlet 120, an inlet-side refrigerant channel is formed inside the body where one side is connected to the inlet pipe 220 and the other side is connected to the refrigerant inlet 120. The inlet pipe 220 and the refrigerant inlet 120 are configured to communicate with each other through the inlet refrigerant channel, and when the outlet pipe 230 is spaced apart from the refrigerant outlet 130, it is located inside the body. An outlet-side refrigerant channel is formed in which one side is connected to the outlet pipe 230 and the other side is connected to the refrigerant outlet 130, so that the outlet pipe 230 and the refrigerant outlet 130 communicate with each other through the outlet-side refrigerant channel. It can be configured as follows.

The connection flange 200 of this embodiment may also be brazed to the top plate 110 to be integrated with the plate heat exchanger 100. For example, as shown, after the connection flange 200 is seated on the top plate 110, the lower surface of the connection flange 200 in close contact with the upper surface of the top plate 110 may be brazed together. You can. When the inlet pipe 220 of the connection flange 200 is disposed vertically above the refrigerant inlet 120, the inlet pipe 220 may be inserted into the refrigerant inlet 120 burred upward and brazed. Meanwhile, when the outlet pipe 230 is spaced apart from the refrigerant outlet 130, the refrigerant outlet 130 and the outlet pipe 230 are not directly connected, so in this case, the refrigerant outlet 130 is burred upward. It may not be formed into a structure.

Furthermore, in this embodiment, an additional coupling structure between the connection flange and the top plate may be further adopted. For example, as shown in FIGS. 13 and 14, a fastening groove 180 is formed in the top plate 110 penetrating the top plate 110, and as shown in FIG. 16, a fastening groove 180 is formed on the connection flange 200 on the outside from the connection flange 200. A fastening ring 250 is formed to protrude, and the fastening ring 25 of the connection flange is inserted into the fastening groove 180 of the top plate and can be configured to be fastened to each other. This can strengthen the bonding force between the connection flange and the top plate and increase ease of assembly.

Additionally, in this embodiment, a gasket 400 may be provided between the top plate 110 and the connection flange 200, through which the sealing of the refrigerant and the weldability of the connection flange may be improved.

This embodiment provides a structural advantage in that the inlet pipe 220 and the outlet pipe 230 can be arranged in close proximity, thereby improving freedom in the structure and manufacturing design of the connection flange 200 itself and the refrigerant manifold. You can.

Next, we will look at the heat exchanger according to the third embodiment of the present invention. FIGS. 18 to 24 are views showing a heat exchanger according to a third embodiment of the present invention, FIG. 18 is a perspective view of the heat exchanger according to the third embodiment, FIG. 19 is an exploded perspective view of the heat exchanger of FIG. 18, and FIG. 20 is a top perspective view of the top plate of Figure 18, Figure 21 is a bottom perspective view of the top plate of Figure 18, Figure 22 is a top perspective view of the connection flange of Figure 18, Figure 23 is a bottom perspective view of the connection flange of Figure 18, Figure 24 is a cross-sectional view of the heat exchanger of Figure 18.

In this embodiment, unlike the coupling structure between the connection flange and the top plate in the first and second embodiments, the connection flange 200 is inserted into the insertion hole 150 formed in the top plate 110. More specifically, as shown in FIGS. 20 and 21, an insertion hole 150 of a structure corresponding to the connection flange 200 is formed in the top plate 110 so that the connection flange 200 can be inserted, and the insertion hole ( The connection flange 200 is inserted into 150). That is, an insertion hole 150 may be formed in the top plate 110 with the same shape and size as the horizontal cross-section of the body 210 of the connection flange 200.

The insertion hole 150 of the top plate 110 is formed from the refrigerant inlet 120C of the core part 190 to the refrigerant outlet 130C so that the refrigerant inlet 120C and the refrigerant outlet 130C of the core part 190 are located inside. (It has a structure extending up to 130C, and the body 210 of the connection flange 200 is configured to connect the refrigerant inlet and the refrigerant outlet of the core portion 190.

That is, unlike the previous embodiments, this embodiment does not form the refrigerant inlet 120 and the refrigerant outlet 130 in the top plate 110, but forms an insertion hole 150 with a wide through structure to accommodate them. , the connection flange 200 is installed through the corresponding insertion hole 150, so that the refrigerant inlet 120C and the refrigerant outlet 130C of the core part 190 are directly connected to the inlet pipe 220 and the outlet pipe of the flange 200. (230) is configured to be connected. Here, the refrigerant inlet 120C and the refrigerant outlet 130C of the core portion 190 are as described above.

Based on this structure, the insertion hole 150 of the top plate 110 has a structure extending from approximately one side of the top plate 110 to the other side, and the body 210 has an overall plate-shaped structure, so that the refrigerant in the core portion It is configured to connect the inlet (120C) and the refrigerant outlet (130C). That is, the body 210 has a structure extending from the refrigerant inlet 120C of the core portion to the refrigerant outlet 130C.

Furthermore, in this embodiment, like the second embodiment, at least one of the inlet pipe 220 and the outlet pipe 230 may be spaced apart from the refrigerant inlet 120C or the refrigerant outlet 130C of the core portion in the horizontal direction, A refrigerant channel 215 through which the refrigerant flows is formed inside the body 210, and an inlet pipe 220 formed spaced apart from the refrigerant inlet 120C of the core part communicates with the refrigerant inlet 120C through the refrigerant channel 215. Alternatively, the outlet pipe 230 formed to be spaced apart from the refrigerant outlet 130C of the core portion may communicate with the refrigerant outlet 130C. The detailed structure of forming a refrigerant channel inside the connection flange and connecting the inlet pipe or outlet pipe to the refrigerant inlet or refrigerant outlet, respectively, is the same as that described in the second embodiment, and detailed description will be omitted.

In addition, although not shown, while using the coupling structure between the connection flange and the top plate in this embodiment, that is, a structure in which an insertion groove is formed in the top plate and the connection flange is inserted and coupled, the inlet pipe 220 ) can be placed at the vertical upper part of the refrigerant inlet (120C) of the core part to directly connect the two, and the outlet pipe 230 can be placed at the vertical upper part of the refrigerant outlet (130C) of the core part to directly connect the two. Of course.

Furthermore, in this embodiment, an additional coupling structure between the connection flange and the top plate may be further adopted. For example, as shown in FIGS. 22 and 23, a flange portion 260 extending outward by a predetermined amount is formed at the lower portion of the body 210 of the connection flange 200, and the flange portion 260 is connected to the top plate 110. It is in close contact with the lower part of the insertion hole 150, and the close contact portion is brazed so that the connection flange 200 and the top plate 110 can be coupled to each other.

Unlike the first and second embodiments, this embodiment has the advantage of reliably preventing the risk of refrigerant leaking between the connection flange and the top plate by forming an insertion groove in the top plate and inserting and joining the connection flange.

Next, we will look at the heat exchanger according to the fourth embodiment of the present invention. Figures 25 to 31 are views showing a heat exchanger according to a fourth embodiment of the present invention, Figure 25 is a perspective view of the heat exchanger according to the third embodiment, Figure 26 is an exploded perspective view of the heat exchanger of Figure 25, and Figure 27 is a top perspective view of the top plate of Figure 25, Figure 28 is a bottom perspective view of the top plate of Figure 25, Figure 29 is a top perspective view of the connection flange of Figure 25, Figure 30 is a bottom perspective view of the connection flange of Figure 25, Figure 31 is a cross-sectional view of the heat exchanger of Figure 25.

In this embodiment, unlike the first, second, and third embodiments, a cover portion 160 is formed on the top plate 110. More specifically, as shown in FIGS. 27 and 28, the top plate 110 is formed with a plate-shaped cover portion 160 that protrudes from the top of the top plate 110. In addition, an insertion hole 161 of a structure corresponding to the connection flange 200 is formed in the cover portion 160 so that the connection flange 200 can be inserted, and the connection flange 200 is inserted into the insertion hole 161. It can be inserted and brazed. That is, a predetermined protruding plate-shaped cover part 160 is formed on the top plate 110, and an insertion hole of the same shape and size as the horizontal cross-section of the body 210 of the connection flange 200 is formed in the cover part 160. (161) can be formed.

The cover part 160 may have a structure extending from the refrigerant inlet of the core part 190 to the refrigerant outlet so that the refrigerant inlet 120C and the refrigerant outlet 130C of the core part 190 are located therein. That is, the cover portion 160 may have a structure extending from approximately one side of the top plate 110 to the other side.

Furthermore, the insertion hole 161 of the cover part 160 may be formed to be smaller than the upper area of the cover part 160, and the position where the insertion hole 161 is formed can be freely set. That is, in this embodiment, at least one of the inlet pipe 220 and the outlet pipe 230 of the connection flange 200 may be spaced apart from the refrigerant inlet 120 or the refrigerant outlet 130 in the horizontal direction, and correspondingly The body 210 can be formed to be small in size, and the connection flange 200 can be coupled to any position of the cover portion 160.

Here, a refrigerant channel 165 through which the refrigerant flows is formed inside the cover part 160, and the refrigerant of the inlet pipe 220 of the connection flange 200 and the core part 190 flows through the refrigerant channel 165. The inlet 120C may be connected, or the outlet pipe 230 of the connection flange 200 may be connected to the refrigerant outlet 130C of the core portion 190.

That is, in this embodiment, in the previous second and third embodiments, the refrigerant channel 215 is formed inside the body 210 of the connection flange 200, and the inlet pipe 220/ Unlike connecting the outlet pipe 230 with the refrigerant inlet (120, 120C)/refrigerant outlet (130C) of the top plate 110 or the core portion 190, the outlet pipe 230 protrudes upward from the top plate 110 by a predetermined amount and is connected to the inside. A cover part 160 of a hollow structure is formed, and a refrigerant channel 165 is formed inside the cover part 160 to connect the refrigerant.

Looking at this embodiment in detail with reference to FIGS. 11 and 12, the inlet pipe 220 is disposed vertically above the refrigerant inlet 120C of the core portion 190 and directly communicates with the refrigerant inlet 120C, and the outlet pipe (230) is arranged to be spaced apart in the horizontal direction from the refrigerant outlet (130C) of the core part 190, and inside the cover part 160, one side is connected to the outlet pipe 230 and the other side is connected to the core part 190. A refrigerant channel 165 connected to the refrigerant outlet 130C may be formed so that the outlet pipe 230 and the refrigerant outlet 130C communicate with each other through the refrigerant channel 165 on the outlet side.

Alternatively, the same structure can be applied even when the inlet pipe 220 is spaced apart from the refrigerant inlet 120, and further, both the inlet pipe 220 and the outlet pipe 230 are connected to the refrigerant inlet 120C and The same structure can be applied even when the refrigerant outlet 120C is spaced apart from the refrigerant outlet 120C and close to the center of the top plate 110.

In this embodiment, compared to the first and second embodiments, the connection flange 200 can be configured in a small and simple form, thereby reducing weight and manufacturing costs, and the connection flange is formed to be relatively small. Accordingly, the robustness of the connection flange can be improved.

Meanwhile, in the above, each technical element of the present invention has been described for each embodiment, but it goes without saying that any one of these technical elements is not limited to the corresponding embodiment and can be commonly extended and applied to other embodiments.

As seen above, in the heat exchanger of the present invention, the connection flange 200, which mediates assembly and refrigerant flow between the plate heat exchanger 100 and the refrigerant manifold, is integrated with the top plate 110 of the plate heat exchanger 100. It is formed, thereby ensuring ease of assembly and connection between the refrigerant manifold and the plate heat exchanger 100.

Above, embodiments of the present invention have been described with reference to the attached drawings, but those skilled in the art will understand that the present invention can be implemented in other specific forms without changing the technical idea or essential features. You will understand that it exists. Therefore, the embodiments described above should be understood as illustrative in all respects and not restrictive.

10: heat exchanger
100: plate heat exchanger
110: top plate
120: Refrigerant inlet of top plate
130: Refrigerant outlet of top plate
150: Insertion groove of top plate
160: cover part
161: Insertion groove of the cover part
165: Refrigerant channel inside the cover part
190: Core part
120C: Refrigerant inlet of core part
130C: Refrigerant outlet of core part
200: connection flange
210: body
215: Refrigerant channel inside the body
220: inlet pipe
230: outlet pipe

Claims (20)

A plate heat exchanger including a core portion in which a plurality of plates are stacked to exchange heat with a heat exchange medium, and a top plate disposed on an upper portion of the core portion; and
It includes a connection flange provided on the top plate and fastened to an external component,
The connection flange is
body,
an inlet pipe formed on one side of the body through which refrigerant flows;
Comprising an outlet pipe formed on the other side of the body through which refrigerant is discharged,
heat exchanger.
According to paragraph 1,
At least one of the inlet pipe and the outlet pipe of the connection flange is horizontally spaced apart from the refrigerant inlet or refrigerant outlet of the top plate,
A refrigerant channel through which the refrigerant flows is formed inside the body,
Through the refrigerant channel, the inlet pipe of the connection flange and the refrigerant inlet of the top plate are in communication, or the outlet pipe of the connection flange and the refrigerant outlet of the top plate are in communication,
heat exchanger.
According to paragraph 2,
The top plate has a refrigerant inlet formed on one side of the top plate through which refrigerant flows in, and a refrigerant outlet formed on the other side of the top plate through which refrigerant is discharged,
The body of the connection flange is configured to connect the refrigerant inlet and the refrigerant outlet of the top plate,
heat exchanger.
According to paragraph 3,
Among the bodies of the connection flange, a predetermined area around the inlet pipe is called a first body part, a predetermined area around the outlet pipe is called a second body part, and the area where the refrigerant channel is formed is called a channel part,
The channel portion is formed to have a smaller thickness than the first body portion and the second body portion,
heat exchanger.
According to paragraph 2,
A gasket is disposed between the top plate and the connection flange,
heat exchanger.
According to paragraph 2,
A fastening ring is formed on the body of the connection flange and protrudes outward from the body,
A fastening groove into which the fastening ring can be inserted is formed in the top plate,
The fastening ring of the connection flange is inserted into the fastening groove of the top plate and is configured to be fastened to each other,
heat exchanger.
According to paragraph 2,
The connection flange is seated on the upper surface of the top plate,
heat exchanger.
According to paragraph 1,
At least one of the refrigerant inlet and refrigerant outlet of the top plate is burred upward,
The end of the inlet pipe is inserted into the refrigerant inlet having the burred structure and brazed, or
The end of the outlet pipe is inserted into the refrigerant outlet having the burred structure and brazed,
heat exchanger.
According to paragraph 1,
The top plate has a refrigerant inlet formed on one side of the top plate through which refrigerant flows in, and a refrigerant outlet formed on the other side of the top plate through which refrigerant is discharged,
The body of the connection flange is configured to connect the refrigerant inlet and the refrigerant outlet of the top plate,
The inlet pipe of the connection flange is disposed vertically above the refrigerant inlet of the top plate and directly communicates with the refrigerant inlet,
The outlet pipe of the connection flange is disposed vertically above the refrigerant outlet of the top plate and directly communicates with the refrigerant inlet,
heat exchanger.
According to clause 9,
Among the bodies of the connection flange, a predetermined area around the inlet pipe is called a first body part, and a predetermined area around the outlet pipe is called a second body part, and a predetermined area between the first body part and the second body part is called a second body part. If the area is a connection,
The connection portion is formed to have a smaller thickness than the first body portion and the second body portion,
heat exchanger.
According to clause 10,
A clad sheet is disposed between the connection portion and the top plate to braze the connection portion and the top plate,
heat exchanger.
According to paragraph 1,
An insertion hole having a structure corresponding to the connection flange is formed in the top plate so that the connection flange can be inserted,
The connection flange is inserted into the insertion hole of the top plate,
heat exchanger.
According to clause 12,
The insertion hole of the top plate is structured to extend from the refrigerant inlet of the core part to the refrigerant outlet so that the refrigerant inlet and refrigerant outlet of the core part are located inside,
The body of the connection flange is configured to connect the refrigerant inlet and the refrigerant outlet of the core part,
heat exchanger.
According to clause 13,
At least one of the inlet pipe and the outlet pipe of the connection flange is horizontally spaced apart from the refrigerant inlet or refrigerant outlet of the core portion,
A refrigerant channel through which the refrigerant flows is formed inside the body,
Through the refrigerant channel, the inlet pipe of the connection flange and the refrigerant inlet of the core part communicate, or the outlet pipe of the connection flange and the refrigerant outlet of the core part communicate,
heat exchanger.
According to paragraph 1,
The top plate is formed with a cover portion that protrudes upward,
An insertion hole having a structure corresponding to the connection flange is formed in the cover portion so that the connection flange can be inserted,
The connection flange is inserted into the insertion hole of the cover part,
heat exchanger.
According to clause 15,
At least one of the inlet pipe and the outlet pipe of the connection flange is horizontally spaced apart from the refrigerant inlet or refrigerant outlet of the core portion,
A refrigerant channel through which refrigerant flows is formed inside the cover part,
Through the refrigerant channel, the inlet pipe of the connection flange and the refrigerant inlet of the core part communicate, or the outlet pipe of the connection flange and the refrigerant outlet of the core part communicate,
heat exchanger.
According to paragraph 1,
The connection flange is brazed to the top plate and is integrally formed with the top plate,
heat exchanger.
According to paragraph 1,
The inlet pipe and the outlet pipe each have a structure that protrudes upward from the body,
heat exchanger.
According to paragraph 1,
At least one bolt fastening groove formed in a vertical direction is formed on the body of the connection flange,
heat exchanger.
According to paragraph 1,
The external component is a refrigerant manifold through which refrigerant flows,
heat exchanger.