KR20200064788A - Printed circuit heat exchanging plate and printed circuit heat exchanger including the same - Google Patents

Abstract

The present invention provides a printed circuit board-type heat exchange plate and a printed circuit board-type heat exchanger including the same which can evenly transfer heat in entire channels by having a uniform flow velocity for the entire channels. According to an embodiment of the present invention, the printed circuit board-type heat exchange plate comprises an inlet head unit and a heat exchange unit. The inlet head unit includes an inlet end into which fluid flows, a head chamber in which the inflow fluid is moved, and an outlet end to discharge the fluid. The heat exchange unit has a plurality of channels connected to the outlet end and arranged to be separated to distribute and move fluid. The outlet end is asymmetrically formed around a virtual reference line extended from the center of the inlet end in a first direction. The heat exchange unit includes a first and a second edge area channel arranged adjacent to sidewalls provided on both sides, and a center area channel arranged between the first and second edge area channels. The front end of the second edge area channel arranged farther from the virtual reference line protrudes more than the center area channel towards the inlet end.

Description

PRINTED CIRCUIT HEAT EXCHANGING PLATE AND PRINTED CIRCUIT HEAT EXCHANGER INCLUDING THE SAME

The present invention relates to a printed-substrate heat exchanger plate and a printed-substrate heat exchanger comprising the same, and more specifically, a printed-substrate-type heat exchanger plate capable of uniformly transferring heat in all channels by making the flow rate uniform for all channels and the same. It relates to a printed board heat exchanger.

Printed Circuit Heat Exchanger (PCHE) is manufactured by stacking dozens of thin and small heat exchange plates with micro-channels processed using micro electro-mechanical system (MEMS) technology. The microchannel used in the heat exchanger plate refers to a channel having a characteristic length between 1 μm and several mm.

A printed-substrate heat exchanger equipped with a micro-channel utilizes that the heat transfer coefficient in the tube is inversely proportional to the tube diameter in a steady-state tube flow to create a narrow micro-channel and flow the fluid into the channel to exchange high-temperature fluid and low-temperature fluid. You can do it.

The smaller the size of the channel and the larger the number of channels, the larger the heat transfer area per unit volume, so the printed-substrate heat exchanger shows superior performance compared to the existing macro unit heat exchanger, and it is possible to reduce the size and weight. Due to these advantages, interest in the application of a printed-substrate type heat exchanger having a micro channel is increasing in various examples requiring ultra-small electronic devices and local cooling.

In the process of moving the fluid through the micro-channel, the high-temperature fluid and the low-temperature fluid respectively exchange heat with each other while passing through the adjacent channels vertically.

Typically, the heat exchanger plate has an inlet head on one side of the microchannel where heat exchange occurs while the fluid moves, and an outlet head on the other side of the microchannel.

However, in the conventional printed-substrate-type heat exchange plate, there is a problem in that the velocity of the fluid moving from the inflow head to the plurality of micro-channels is not uniform. In this case, since the heat transfer is different for each channel, there is a problem in that the overall heat exchange efficiency is lowered.

Republic of Korea Registered Patent Publication No. 1317920 (2013. 10. 16. announcement)

In order to solve the above problems, the technical problem to be achieved by the present invention is to provide a printed substrate type heat exchanger plate and a printed substrate type heat exchanger including the same, which enables uniform heat transfer in all channels by making the flow rate uniform for all channels. Is to do.

The technical problem to be achieved by the present invention is not limited to the technical problems mentioned above, and other technical problems not mentioned can be clearly understood by those skilled in the art from the following description. There will be.

In order to achieve the above technical problem, an embodiment of the present invention has an inlet end through which fluid enters, a head chamber through which fluid enters the inlet end moves, and an outlet end through which fluid moved into the head chamber is discharged. Inlet head portion; And it is connected to the outlet end and is formed extending in a first direction so that the fluid flowing is distributed, and includes a heat exchange unit having a plurality of channels spaced apart in a second direction crossing the first direction, The outlet end is formed to be asymmetric about a virtual reference line extending in the first direction from the center of the inlet end, and the heat exchange parts are first edges disposed adjacent to side walls provided in the first direction on both sides, respectively. A second edge region having a region channel and a second edge region channel, and a center region channel disposed between the first edge region channel and the second edge region channel, and disposed further away from the virtual reference line. The channel provides a printed-substrate-type heat exchanger plate characterized in that the front end of the channel is protruded in the direction of the inlet end.

On the other hand, in order to achieve the above technical problem, an embodiment of the present invention is an inlet end to which fluid enters, a head chamber to which fluid entering the inlet end moves, and an outlet end to which fluid moved to the head chamber is discharged. Inlet head portion having; And a heat exchanger having a plurality of channels connected to the outlet end, extending along a first direction to distribute and move the inflowing fluid, and having a plurality of channels spaced apart in a second direction intersecting the first direction. The outlet end is formed to be symmetric about a virtual reference line extending in the first direction from the center of the inlet end, and the heat exchange parts are first edge regions disposed adjacent to side walls provided in the first direction on both sides, respectively. A channel having a channel and a second edge region channel, and a central region channel disposed between the first edge region channel and the second edge region channel, wherein the first edge region channel and the second edge region channel are the central region. It provides a printed substrate heat exchange plate characterized in that the front end than the channel is formed to protrude in the inlet end direction.

In an embodiment of the present invention, the plurality of channels may be formed such that the front end protrudes in a round shape.

In an embodiment of the present invention, the plurality of channels may be formed such that the front end protrudes in a wedge shape.

In an embodiment of the present invention, the front end of the second edge region channel may be formed to protrude toward the adjacent side wall.

In an embodiment of the present invention, the outlet end of the inlet head portion is divided into an opening portion connected to the plurality of channels and a closing portion not connected to the plurality of channels, and the length of the second direction of the closing portion increases. , The protrusion length of the second edge region channel may also increase proportionally.

In an exemplary embodiment of the present invention, front ends of the first edge region channel and the second edge region channel may be formed to protrude toward the adjacent sidewalls, respectively.

On the other hand, in order to achieve the above technical problem, an embodiment of the present invention is a printed substrate type heat exchange plate is provided with a plurality of stacked in the vertical direction; And it provides a printed-substrate heat exchanger including a housing for receiving and fixing the printed-substrate-type heat exchanger plate stacked therein.

On the other hand, in order to achieve the above technical problem, an embodiment of the present invention is a printed substrate type heat exchange plate is provided with a plurality of stacked in the vertical direction; And it provides a printed-substrate heat exchanger including a housing for receiving and fixing the printed-substrate-type heat exchanger plate stacked therein.

According to an embodiment of the present invention, the front end of the channel included in the edge region channel adjacent to the side wall is formed to protrude in the direction of the inlet end, and in particular, the front end of the channel is formed to protrude toward the adjacent side wall to adjoin the side wall. The flow resistance of the fluid flowing into the edge region channel can be reduced. Through this, it is possible to reduce the occurrence of the flow separation phenomenon, so that the flow can be made uniform, and the flow velocity can be made uniform over the entire channel, so that heat transfer can be evenly performed in the entire channel.

In addition, according to an embodiment of the present invention, the front end of the channel is formed to protrude in a round shape or a wedge shape, so that the flow resistance of the fluid moving between the channels can be lowered.

It should be understood that the effects of the present invention are not limited to the above-described effects, and include all effects that can be deduced from the configuration of the invention described in the detailed description or claims of the invention.

1 is an exemplary view schematically showing a printed board heat exchanger according to a first embodiment of the present invention.
FIG. 2 is a plan view showing the inflow head portion and the channel of the printed substrate heat exchange plate according to the first embodiment of the present invention.
3 is an exemplary view for explaining the pressure change in the printed substrate heat exchange plate according to the first embodiment of the present invention.
Figure 4 is a graph for explaining the flow rate for each channel of the printed substrate heat exchange plate according to the first embodiment of the present invention.
5 is an exemplary view schematically showing a printed substrate heat exchanger according to a second embodiment of the present invention.
6 is a plan view showing the center of the channel of the printed circuit board type heat exchanger plate according to the second embodiment of the present invention.
7 is a graph for explaining the flow rate for each channel of the printed-substrate heat exchange plate according to the second embodiment of the present invention.

Hereinafter, the present invention will be described with reference to the accompanying drawings. However, the present invention may be implemented in various different forms, and thus is not limited to the embodiments described herein. In addition, in order to clearly describe the present invention in the drawings, parts irrelevant to the description are omitted, and like reference numerals are assigned to similar parts throughout the specification.

Throughout the specification, when a part is “connected (connected, contacted, coupled)” with another part, it is not only “directly connected”, but also “indirectly connected” with another member in between. It also includes the case where it is. Also, when a part “includes” a certain component, this means that other components may be further provided, not excluding other components, unless otherwise stated.

The terms used herein are only used to describe specific embodiments, and are not intended to limit the present invention. Singular expressions include plural expressions unless the context clearly indicates otherwise. In this specification, the terms “include” or “have” are intended to indicate the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, one or more other features. It should be understood that the existence or addition possibilities of fields or numbers, steps, operations, components, parts or combinations thereof are not excluded in advance.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is an exemplary view schematically showing a printed-substrate-type heat exchanger according to a first embodiment of the present invention, and FIG. 2 is a planar view showing the inlet head portion and the channel of the printed-substrate-type heat exchanger plate according to the first embodiment of the present invention It is an example.

1 and 2, the printed substrate heat exchange plate 10 may include an inflow head portion 100 and a heat exchange portion 200.

Fluid may be introduced through the inlet head portion 100, and the fluid flowing into the inlet head portion 100 may be distributed and moved to the heat exchange portion 200.

In addition, the printed substrate heat exchange plate 10 may include a discharge head portion 300, and the fluid that is distributed and moved in the heat exchange portion 200 may be discharged through the discharge head portion 300.

The printed substrate heat exchange plate 10 may be formed in a single plate shape, and the inflow head portion 100 and the discharge head portion 300 may be formed at both ends.

In addition, the heat exchange unit 200 may be formed between the inlet head portion 100 and the outlet head portion 300, and a plurality of channels 201 connecting the inlet head portion 100 and the outlet head portion 300 ).

The printed substrate heat exchanger may include a printed substrate heat exchange plate 10 provided with a plurality of stacked stacks in the vertical direction, and high temperature and low temperature fluids may be moved between each printed substrate type heat exchange plate 10.

Since the channel 201 has a plurality of protrusions formed so that the surface area of the heat exchange unit 200 can be widened, the high temperature fluid and the low temperature fluid moving between the respective printed substrate type heat exchange plates 10 are heat exchange units 200. As it passes, it can be effectively exchanged.

In order to increase the heat exchange efficiency between the high-temperature fluid and the low-temperature fluid, the high-temperature fluid and the low-temperature fluid may be moved alternately with each layer of the printed substrate type heat exchange plate 10 stacked.

The printed substrate heat exchanger may include a printed substrate type heat exchange plate 10 provided in a stack, and a housing 20 for receiving and fixing the printed substrate type heat exchange plate 10 provided in a stack therein.

Hereinafter, for convenience of description, it will be described as a front end/front end/front direction and a rear end/rear end/rear direction based on the flow direction of the fluid. That is, when the fluid is moved from the first point to the second point, the first point will be described as the front end/front end/front direction and the second point as the rear end/rear end/rear direction.

The inlet head portion 100 may have an inlet end 110, a head chamber 120, and an outlet end 130.

Fluid may enter the inlet end 110.

The head chamber 120 may be connected to the rear end of the inlet end 110, and the fluid entering the inlet end 110 may move to the head chamber 120.

The outlet end 130 may be connected to the rear end of the head chamber 120, and fluid entering the inlet end 110 and moving to the head chamber 120 may be discharged to the outlet end 130.

The heat exchange part 200 may be connected to the outlet end 130 and may be formed to extend along the first direction A1 so that the fluid flowing therein is distributed and moved. In addition, the heat exchanger 200 may have a plurality of channels 201 that are spaced apart along the second direction A2 crossing the first direction A1.

In this embodiment, the outlet end 130 may be formed to be asymmetrical around a virtual reference line SL extending in the first direction A1 from the center of the inlet end 110.

In addition, the outlet end 130 may be divided into an open portion connected to the plurality of channels 201 and a closed portion 21 not connected to the plurality of channels 201. The closing portion 21 may be formed in the housing 20, but is not limited thereto, and may be directly formed on the printed substrate heat exchange plate 10. The closing portion 21 may be formed to extend in the second direction (A2).

The heat exchanger 200 may have a first edge region channel 220a, a second edge region channel 220b, and a central region channel 230.

The first edge region channel 220a and the second edge region channel 220b may be channels disposed adjacent to the side walls 210a and 210b respectively provided in the first direction A1 on both sides of the heat exchanger 200. have.

Here, the side walls 210a and 210b are side surfaces of the housing 20 provided to surround the printed substrate heat exchange plate 10, or channels provided on the outermost of the channels provided in the heat exchanger 200, or It may be a wall surface provided separately on both sides of the heat exchange unit 200.

Each of the first edge region channel 220a and the second edge region channel 220b may include a plurality of channels, and the channels included in the first edge region channel 220a and the second edge region channel 220b may be The number can be predetermined.

The central region channel 230 may be a channel disposed between the first edge region channel 220a and the second edge region channel 220b, and may be provided in the center of the heat exchanger 200. The central region channel 230 may include a plurality of channels, and the channels included in the central region channel 230 may exclude the channels included in the first edge region channel 220a and the second edge region channel 220b. It can be a channel.

The first edge region channel 220a may be a channel disposed relatively close to the virtual reference line SL, and the second edge region channel 220b may be relatively farther away from the virtual reference line SL. It may be a deployed channel.

In addition, in the present embodiment, the second edge region channel 220b disposed farther away from the virtual reference line SL may be formed so that the front end portion protrudes toward the entrance end 110 direction than the center region channel 230. .

That is, when the rear end of the channel included in the second edge region channel 220b and the channel included in the center region channel 230 are positioned on the same line provided in the second direction, the second edge region channel 220b ) May be longer than a channel included in the central region channel 230.

In addition, the front end of the channels 221 to 226 included in the second edge region channel 220b may be formed to protrude toward the sidewall 210b.

That is, among the channels 221 to 226 included in the second edge region channel 220b, the front end portion of the first channel 221 disposed closest to the side wall 210b is relatively more frequently directed toward the inlet end 110. It may be formed to protrude. In addition, the front end of the sixth channel 226 disposed closest to the center region channel 230 may be formed to protrude relatively little.

In addition, the channel provided in the side wall 210b direction, that is, the front end is formed to protrude toward the fourth channel 224, the third channel 223, and the second channel 222 from the fifth channel 225. Can be.

As in the present embodiment, when the center of the outlet end 130 is asymmetric with the center of the inlet end 110, flow separation occurs in a channel adjacent to the side wall provided relatively far from the center of the inlet end 110 Depending on the flow rate may become unstable. When flow separation occurs, when viewed from one channel, flow separation occurs at the inlet of the channel, so that the fluid is moved up or down in the channel, and the cross-sectional area through which the fluid can flow decreases, and thus, is localized. As a result, a phenomenon in which the flow rate of the fluid becomes faster may occur.

On the other hand, the flow occurs in the forward pressure gradient, and when the fluid passes through the channel, the plus pressure gradually decreases due to the frictional force with the channel surface, resulting in a negative pressure, and the flow rate gradually decreases. Therefore, the channel inlet shows a relatively fast flow rate, and when the flow proceeds to a certain extent, the flow is stagnated and delayed as the flow falls off the channel wall, and when discharged from the channel, the flow rate is reduced. Can be.

In this case, since the flow velocity of the fluid is different for each channel, heat transfer is not evenly performed in all channels.

Referring to this embodiment, the flow separation phenomenon is a second edge region located away from the virtual reference line SL extending in the first direction A1 from the center of the inlet end 110 of the inflow head portion 100. It is more likely to occur in channel 220b. That is, since the flow path F1 when the fluid entering the inlet end 110 moves to a channel close to the virtual reference line SL, the flow resistance of the fluid at the channel inlet may be small.

On the other hand, when the fluid entering the inlet end has a flow path F2 entering the second edge region channel 220b, the flow angle increases, and thus the flow resistance of the fluid increases at the channel inlet. Peeling may occur.

To solve this, in this embodiment, the front end of the channels 221 to 226 included in the second edge region channel 220b is formed to protrude in the direction of the inlet end 110, in particular, the second edge region channel 220b ) To the front end of the channels (221 ~ 226) included in the direction of the side wall (210b) is formed to protrude to reduce the flow resistance of the fluid flowing into the second edge region channel (220b), through which, flow separation The occurrence of the phenomenon can be reduced.

The front end of the channels 221 to 226 included in the second edge region channel 220b may be formed to increase linearly toward the sidewall 210b, but is not limited thereto.

In addition, the first edge region channel 220a may be formed such that its front end is positioned on the same line as the front end of the central region channel 230.

That is, when the rear end of the channel included in the first edge region channel 220a and the channel included in the center region channel 230 are positioned on the line provided in the second direction A2, the first edge region channel The length of the channel included in (220a) and the length of the channel included in the central region channel 230 may be the same.

On the other hand, as shown in Figure 2 (a), the channel provided in the heat exchange unit 200 may be formed to protrude the front end in a round shape.

Or, as shown in Figure 2 (b), the channel provided in the heat exchange unit 200 may be formed so that the front end protrudes in a wedge shape.

Since the front end of the channel 201 is formed to protrude in a round shape or a wedge shape, the flow resistance of the fluid entering the inlet head portion 100 and flowing into the heat exchange portion 200 may be reduced.

Figure 3 is an exemplary view for explaining the pressure change in the printed substrate type heat exchanger plate according to the first embodiment of the present invention, Figure 4 illustrates the flow rate for each channel of the printed substrate type heat exchanger plate according to the first embodiment of the present invention Graph (a) of FIG. 4 shows the flow velocity of the fluid flowing into the channel in a conventional printed-substrate heat exchanger plate having a heat exchange portion in a flat and equally protruding state at the front end of the channel. ) Denotes the flow velocity of the fluid flowing into the channel in the printed substrate heat exchange plate according to the present embodiment.

Hereinafter, it will be further described with reference to FIGS. 3 and 4.

First, as shown in FIG. 3, the fluid entering the inlet end 110 moves to the outlet end 130 through the head chamber 120.

However, the head chamber 120 is formed to have a larger cross-sectional area toward the rear direction, and a part of the rear end of the head chamber 120 is blocked by the closing portion 21. Therefore, a part of the fluid entering the head chamber 120 may be blocked by the closing portion 21 and the flow may stagnate, and the pressure inside the head chamber 120 may increase.

In this state, when the front end of the channel is not a round shape or a wedge shape, but is a flat shape along the second direction A2 as in the prior art, the fluid in the head chamber 120 passes through the outlet end 130 to the channel 201 ) When entering the fluid resistance is further increased, thereby causing a problem that the pressure inside the head chamber 120 is further increased.

In FIG. 4, the horizontal axis of the graph represents a channel, and the leftmost channel in the graph is the lowest channel when referring to FIG. 2, and the rightmost channel in the graph is the uppermost channel when referring to FIG. 2. In addition, the vertical axis of the graph represents the flow rate.

Referring to (a) of FIG. 4, a relatively fast inflow velocity B1 is generated in a channel disposed close to the sidewall 210b by the flow separation phenomenon.

However, in the present invention, the front end of the channel 201 is formed to protrude in a round shape or a wedge shape, so that the flow resistance of the fluid moving between the channels 201 is lower than when the front end of the channel is flat. It is possible to reduce the degree of flow separation by making the front end of the channel included in the second edge region channel 220b protrude in the direction of the inlet end 110 so that the flow becomes uniform.

That is, referring to FIG. 4B, a uniform inflow velocity may occur in the entire channel including the channel disposed relatively close to the sidewall. In this case, since the flow velocity can be uniform for the entire channel, heat transfer can be evenly performed.

The protruding length L2 of the second edge region channel 220b may increase proportionally as the second length L1 of the closing portion 21 increases. Through this, even if the flow rate of the fluid is further increased toward the second edge region channel 220b due to the increase in the second direction length L1 of the closing portion 21, the flow separation in the second edge region channel 220b is effectively relieved. Can be.

5 is an exemplary view schematically showing a printed-substrate-type heat exchanger plate according to a second embodiment of the present invention, and FIG. 6 is a plan view illustrating a channel of the printed-substrate-type heat exchanger plate according to the second embodiment of the present invention. . In this embodiment, the shape of the exit stage may be different, and the description of the same content as in the first embodiment is omitted as much as possible.

5 and 6, the printed substrate heat exchange plate 1010 may include an inflow head portion 1100 and a heat exchange portion 1200.

Fluid may be introduced through the inflow head portion 1100, and the fluid flowing into the inflow head portion 1100 may be distributed and moved to the heat exchanger 1200. In addition, the printing substrate type heat exchange plate 1010 may include a discharge head portion 1300, and the fluid that is distributed and moved through the heat exchange portion 1200 and heat exchanged may be discharged through the discharge head portion 1300.

In addition, the printed substrate heat exchanger may include a printed substrate type heat exchange plate 1010 provided by being stacked, and a housing 1020 for receiving and fixing the printed substrate type heat exchange plate 1010 provided by being stacked therein.

The inlet head 1100 may have an inlet end 1110, a head chamber 1120 and an outlet end 1130, and fluid may enter the inlet end 1110. The head chamber 1120 may be connected to the rear end of the inlet end 1110, and the fluid entering the inlet end 1110 may move to the head chamber 1120. The outlet end 1130 may be connected to the rear end of the head chamber 1120, and fluid entering the inlet end 1110 and moving to the head chamber 1120 may be discharged to the outlet end 1130.

In the present embodiment, the outlet end 1130 may be formed to be symmetric about the imaginary reference line SL extending in the first direction A1 from the center of the inlet end 1110.

In addition, the heat exchanger 1200 may have a first edge region channel 1220a, a second edge region channel 1220b, and a central region channel 1230.

Since the outlet end 1130 is formed to be symmetric with the inlet end 1110 around the virtual reference line SL, the first edge region channel 1220a and the second edge region channel 1220b may be formed to be symmetrical to each other. Can be.

In addition, in the present embodiment, the first edge region channel 1220a and the second edge region channel 1220b may be formed such that the front end thereof protrudes toward the inlet end 1110 toward the center region channel 1230.

In addition, the front ends of the channels included in the first edge region channel 1220a and the second edge region channel 1220b may be formed to protrude toward the adjacent side walls 1210a and 1210b, respectively.

In this embodiment, since the center of the outlet end 1130 is symmetric to the center of the inlet end 1110, the first edge region channel 1220a and the second edge region channel 1220b have the same level of flow separation. This can happen.

To solve this, in this embodiment, the front end of the channels included in the first edge region channel 1220a and the second edge region channel 1220b are protruded in the direction of the inlet end 1110, in particular, It is possible to reduce the flow resistance of the fluid flowing into the first edge region channel 1220a and the second edge region channel 1220b by protruding toward the side walls 1210a and 1210b adjacent to the front end portion, through which It is possible to ensure that the liquid separation is effectively alleviated.

Figure 7 is a graph for explaining the speed of each channel of the printed-substrate heat exchanger plate according to the second embodiment of the present invention, Figure 7 (a) is a front end of the channel is flat and has a heat exchanger in the same protruding state The flow rate of the fluid flowing into the channel in the printed-substrate-type heat exchanger plate is shown, and FIG. 7(b) shows the flow rate of the fluid flowing in the channel in the printed-substrate type heat exchanger plate according to the present embodiment.

First, referring to (a) of FIG. 7, relatively fast inflow speeds B2 and B3 are generated in both channels disposed close to the sidewall by the flow separation phenomenon.

However, as shown in (b) of FIG. 7, according to the present embodiment, the front ends of the channels included in the first edge region channel 1220a and the second edge region channel 1220b are respectively directed toward the inlet end 1110. By protruding, uniform flow rate may be generated in the entire channel 1201 of the heat exchanger 1200. In addition, the flow velocity can be made uniform for the entire channel, so that heat transfer can be evenly performed.

The above description of the present invention is for illustration only, and a person having ordinary knowledge in the technical field to which the present invention pertains can understand that it can be easily modified to other specific forms without changing the technical spirit or essential features of the present invention. will be. Therefore, it should be understood that the embodiments described above are illustrative in all respects and not restrictive. For example, each component described as a single type may be implemented in a distributed manner, and similarly, components described as distributed may be implemented in a combined form.

The scope of the present invention is indicated by the following claims, and all modifications or variations derived from the meaning and scope of the claims and equivalent concepts should be interpreted to be included in the scope of the present invention.

10, 1010: Printed board type heat exchanger plate
20, 1020: housing
21: closed portion
100, 1100: inlet head
200, 1200: heat exchanger
201, 1201: Channel
210a, 210b, 1210a, 1210b: sidewall
220a, 1220a: first edge region channel
220b, 1220b: second edge region channel
230, 1230: Central area channel
300, 1300: discharge head

Claims (9)

An inlet head portion having an inlet end through which fluid enters, a head chamber through which fluid entering the inlet end moves, and an outlet end through which fluid moved into the head chamber is discharged; And
It is connected to the outlet end and is formed extending in a first direction to distribute and move the inflowing fluid, and includes a heat exchange part having a plurality of channels spaced apart in a second direction crossing the first direction,
The outlet end is formed to be asymmetric about an imaginary reference line extending in the first direction from the center of the inlet end,
The heat exchanger may include a first edge region channel and a second edge region channel disposed adjacent to side walls provided in the first direction on both sides, respectively,
And a central region channel disposed between the first edge region channel and the second edge region channel,
The second edge region channel disposed farther away from the virtual reference line is a printed substrate type heat exchanger plate, characterized in that a front end portion is formed to protrude in the direction of the inlet end than the central region channel. An inlet head portion having an inlet end through which fluid enters, a head chamber through which fluid entering the inlet end moves, and an outlet end through which fluid moved into the head chamber is discharged; And
It includes a heat exchange unit having a plurality of channels that are connected to the outlet end and are formed to extend along a first direction to distribute and move the inflowing fluid, and are spaced apart along a second direction intersecting the first direction,
The outlet end is formed to be symmetric about a virtual reference line extending in the first direction from the center of the inlet end,
The heat exchanger may include a first edge region channel and a second edge region channel disposed adjacent to side walls provided in the first direction on both sides, respectively,
And a central region channel disposed between the first edge region channel and the second edge region channel,
The first edge region channel and the second edge region channel are printed substrate type heat exchange plates, characterized in that a front end portion is formed to protrude toward the entrance end of the central region channel. The method according to claim 1 or 2,
The plurality of channels is a printed circuit board type heat exchanger plate, characterized in that the front end is formed to protrude in a round shape. The method according to claim 1 or 2,
The plurality of channels is a printed circuit board type heat exchanger plate, characterized in that the front end is formed to protrude in a wedge shape. According to claim 1,
The front edge of the second edge region channel is formed to protrude toward the side wall adjacent to each other. According to claim 1,
The outlet end of the inlet head portion is divided into an open portion connected to the plurality of channels and a closed portion not connected to the plurality of channels,
As the length of the second portion of the closing portion increases, the protruding length of the channel of the second edge region also increases proportionally. According to claim 2,
The first edge region channel and the front edge portion of the second edge region channel are respectively formed to protrude toward the sidewalls adjacent to each other. Claim 1, 3 to 6, wherein the printed substrate-type heat exchanger plate described in any one of claims and provided with a plurality of stacked in the vertical direction; And
A printed-substrate-type heat exchanger including a housing for receiving and fixing the printed-substrate-type heat-exchanging plate provided inside. A printed-substrate heat exchange plate according to any one of claims 2 to 4 and provided with a plurality of layers stacked in the vertical direction; And
A printed-substrate-type heat exchanger including a housing for receiving and fixing the printed-substrate-type heat-exchanging plate provided inside.

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