Cooling plate having cyclone foreign-matter separation unit and cooling system including the same

Abstract

The present invention discloses a cooling plate equipped with a cyclone foreign matter separation unit according to various embodiments. A cooling plate according to one embodiment includes a plate-shaped cooling plate body (30) and a cyclone unit (20) coupled to one end thereof. On one side of the cooling plate body (30), a first inlet (31) and a second inlet (32) are arranged together, through which cooling water purified by the cyclone unit (20) branches into two branches, and on the other side, a single outlet (33) is arranged. Cooling water flowing into the first inlet (31) passes through a microchannel area (313), exchanges heat with a heating device, and then joins to the discharge manifold (321), while cooling water flowing into the second inlet (32) bypasses the microchannel area (313) and joins directly to the discharge manifold (321). The tangential inlet (251) of the cyclone chamber (25) is set such that the inlet width (d2) is 0.15 to 0.75 relative to the chamber's representative width (d1), thereby enhancing swirling flow, suppressing blockage of the microchannel area (313), and improving the long-term operational reliability of the cooling plate.

Description

Technology Field

[0001] The present invention may relate to a cooling plate and a cooling system. More specifically, the present invention may relate to a cooling plate equipped with a cyclone unit configured to separate foreign substances from cooling water using cyclone flow before the cooling water flows into the microchannel region of the cooling plate, and a cooling system including the same. Background Technology

[0002] Electric vehicles, energy storage devices, power converters, semiconductor power modules, and various heat-generating devices can generate significant heat during operation. Since maintaining these heat-generating devices stably within a certain temperature range prevents performance degradation, shortened lifespan, and safety accidents, cooling devices are widely used to effectively dissipate heat from these devices. In particular, water-cooled cooling plates, in which cooling water flows along internal channels to exchange heat with the heat-generating device, are utilized in various industrial fields due to their ability to ensure high heat transfer performance and structural integration.

[0003] A water-cooled cooling plate may include an inlet for the inflow of cooling water, an outlet for the discharge of cooling water, and an internal flow path that performs heat exchange with a heating device. To increase the contact area between the cooling water and the heating device, the internal flow path may include multiple branched flow paths, micro-flow paths, fin structures, or multi-layered flow path structures. While such structures are advantageous for improving heat exchange efficiency, the smaller the cross-sectional area of ​​the flow path or the more complex the flow path, the greater the likelihood of clogging caused by foreign substances contained in the cooling water.

[0004] Cooling water may contain fine particles introduced during the manufacturing process, corrosion products generated inside piping, debris originating from sealing or adhesive materials, and sludge generated during long-term operation. These foreign substances may enter the cooling plate along with the cooling water and accumulate, in particular, in microchannels or heat exchange areas with narrow channel widths. When foreign substances accumulate inside the channels, the flow rate of the cooling water decreases, the flow distribution becomes uneven, and the thermal resistance in specific areas may increase. As a result, localized overheating of the heating device may occur, or the long-term reliability of the cooling device may be reduced.

[0005] To address this, a method of installing a filter outside the cooling circuit can be used. However, filters require separate installation space and may necessitate maintenance work for replacement or cleaning. Furthermore, increasing the filter's capture performance may increase pressure loss, and if the filter becomes saturated, the flow rate of the entire cooling circuit may drop sharply. Therefore, in high-density cooling devices or cooling systems with limited installation space, adding a separate filter alone is not a sufficient solution.

[0006] Meanwhile, cyclone separation technology is known to form a swirling flow in a fluid and separate foreign substances by utilizing the difference in inertia or centrifugal force between the fluid and the foreign substances. Since the cyclone method can separate foreign substances solely through the shape of the flow path without a separate filtration medium, it can mitigate rapid performance degradation caused by filter clogging. However, conventional cyclone separation technology has mainly been applied to vacuum cleaners, dust collectors, industrial separators, or general fluid separation devices, and has not been optimized for application as a pretreatment structure to protect the micro-flow paths of cooling plates for heating devices.

[0007] In particular, for cooling plates used for heating devices, securing the flow rate of the cooling water, suppressing pressure loss, miniaturization, compatibility with the heating device, and uniform flow distribution within the internal channels must be considered simultaneously. Simply adding a cyclone structure to the cooling circuit may increase the flow resistance of the cooling water or increase the overall height and surface area of ​​the device. Furthermore, if separated foreign substances re-enter the main channel, the protective effect of the microchannels may not be sufficiently ensured.

[0008] Therefore, there is a need to develop a new cooling device structure that effectively separates foreign substances contained in the cooling water at the front of the cooling plate of the heating device, while ensuring that the main flow of the cooling water is stably supplied to the heat exchange area. In particular, a structure may be required in which the cooling water flows tangentially into the cyclone chamber to form a swirling flow, the separated foreign substances are guided to a separate discharge path, and the purified cooling water is supplied to the microchannel area of ​​the cooling plate. The problem to be solved

[0009] The present invention was developed to solve the above-mentioned problems, and its purpose is to provide a cooling device capable of separating foreign substances contained in the cooling water by swirling flow before the cooling water is supplied to the internal flow path of a cooling plate for a heating device.

[0010] Specifically, the present invention aims to provide a cooling device capable of preventing clogging of the microchannels by allowing the cooling water to pass through a cyclone chamber before flowing into the microchannel region of the cooling plate and separating the cooling water from foreign substances by the swirling flow formed in the cyclone chamber.

[0011] Furthermore, the present invention aims to provide a cooling device capable of forming sufficient rotational flow even in a limited space by inducing cooling water to flow tangentially into a cyclone chamber. Through this, foreign substance separation performance can be secured while eliminating the need for a separate filter medium or reducing the burden on the filter medium.

[0012] In addition, the present invention aims to provide a cooling device that increases the inflow velocity of cooling water by arranging an inflow structure having a relatively small inflow cross-section at the top of the cyclone chamber, and enables the stable formation of an initial swirling flow inside the cyclone chamber.

[0013] In addition, the present invention aims to provide a cooling device capable of suppressing the re-entry of separated foreign substances into the main flow path of a cooling plate by creating a difference in height or flow resistance between the path of cooling water flowing into the cyclone chamber and the path of discharge of separated foreign substances.

[0014] In addition, the present invention aims to provide a cooling device capable of implementing a pretreatment function for cooling water and a heat exchange function within a single cooling module by integrally connecting a cyclone unit and a cooling plate through a connecting member.

[0015] In addition, the present invention aims to provide a cooling device capable of improving the flow uniformity of cooling water and long-term cooling performance by forming a plurality of heat exchange zones and micro-channel zones inside a cooling plate, while removing foreign substances at the front of the micro-channel zones.

[0016] In addition, another objective of the present invention is to provide a cooling device capable of securing foreign matter separation efficiency while suppressing an increase in pressure loss by optimizing the arrangement of the cyclone chamber, tangential induction path, main discharge path, and foreign matter discharge path.

[0017] The problems that the present invention aims to solve are not limited to those mentioned above, and other unmentioned problems will be clearly understood by a person skilled in the art from the description below. means of solving the problem

[0018] A cooling plate equipped with a cyclone foreign matter separation unit according to various embodiments of the present invention for solving the above-mentioned problem is disclosed. A cooling plate according to one embodiment includes a plate-shaped cooling plate body (30) and a cyclone unit (20) coupled to one side of the front end thereof. On one side of the cooling plate body (30), a first inlet (31) and a second inlet (32) are arranged together, through which cooling water purified by the cyclone unit (20) branches into two branches, and on the other side, a single outlet (33) is arranged. Cooling water flowing into the first inlet (31) passes through a micro-channel area (313), exchanges heat with a heating device, and then joins to the discharge manifold (321), while cooling water flowing into the second inlet (32) bypasses the micro-channel area (313) and joins directly to the discharge manifold (321). The tangential inlet (251) of the cyclone chamber (25) is set such that the inlet width (d2) is set to a ratio of 0.15 to 0.75 with respect to the chamber's representative width (d1), thereby enhancing swirling flow, suppressing clogging of the microchannel region (313), and improving the long-term operational reliability of the cooling plate. Various other embodiments are possible. Other specific details of the invention are included in the detailed description and drawings. Effects of the invention

[0019] According to the present invention, since the cooling water passes through a cyclone chamber before being supplied to the microchannel region of the cooling plate, foreign substances contained in the cooling water can be separated in advance. Accordingly, clogging of the microchannel can be suppressed, and the long-term operational reliability of the cooling plate can be improved.

[0020] Furthermore, according to the present invention, since the cooling water can flow tangentially along the inner surface of the cyclone chamber, a swirling flow can be effectively formed even in a limited space. Accordingly, a separation action based on the difference in inertia between the cooling water and foreign substances can be implemented, and a foreign substance reduction effect can be obtained without a separate large filter structure.

[0021] In addition, according to the present invention, an inlet structure having a relatively small inlet cross-section can be disposed at the top of the cyclone chamber, thereby increasing the inflow velocity of the cooling water. Accordingly, the initial rotational force inside the cyclone chamber can be strengthened, and the tendency for foreign substances to move toward the outer periphery of the cyclone chamber or toward the foreign substance discharge path can be increased.

[0022] In addition, according to the present invention, a difference in height or flow resistance can be provided between the main flow path of the cooling water and the foreign substance discharge path, thereby suppressing the re-entry of separated foreign substances into the main discharge path. Accordingly, the amount of foreign substances reaching the microchannel area inside the cooling plate can be reduced.

[0023] In addition, according to the present invention, since the cyclone unit and the cooling plate can be connected through a connecting member, the function of separating foreign substances from the cooling water and the function of cooling the heat source can be implemented in a single module. Accordingly, compared to adding a separate external separation device or filter housing, the installation space can be reduced and the assemblability of the cooling device can be improved.

[0024] In addition, according to the present invention, since the internal flow path of the cooling plate can be distributed into a plurality of heat exchange zones, cooling water can be uniformly supplied along the longitudinal or planar direction of the heating device. Accordingly, local overheating of the heating device can be alleviated, and variation in overall cooling performance can be reduced.

[0025] In addition, according to the present invention, foreign substances separated in the cyclone chamber can be discharged or collected through a separate foreign substance discharge path, thereby improving the maintainability of the device. If foreign substances are induced to concentrate in a specific location, foreign substance removal or inspection can be performed without disassembling the entire cooling circuit.

[0026] In addition, according to the present invention, the inlet structure, chamber structure, and discharge structure of the cyclone unit can be designed through the analysis of cooling water flow or particle behavior, thereby ensuring a balance between cooling performance and foreign substance separation performance.

[0027] The effects of the present invention are not limited to those mentioned above, and other unmentioned effects will be clearly understood by a person skilled in the art from the description below. Brief explanation of the drawing

[0028] Various embodiments are described with reference to the drawings, wherein similar reference numbers are used to collectively refer to similar components. In the following embodiments, for illustrative purposes, a number of specific details are presented to provide a comprehensive understanding of one or more embodiments. However, it will be apparent that such embodiments may be practiced without these specific details. FIG. 1 is a perspective view illustrating the overall configuration of a cooling device according to one embodiment of the present invention. FIG. 2 is a perspective view illustrating the coupling relationship between a cyclone unit and a cooling plate and the disassembled structure of a cooling plate in a cooling device according to one embodiment of the present invention. FIG. 3 is a plan view and a partial enlarged view illustrating the planar flow path structure and heat exchange zone of a cooling plate in a cooling device according to one embodiment of the present invention. FIG. 4 is a perspective view and a cross-sectional view illustrating the state in which cooling water flows into a cyclone chamber and forms a swirling flow in a cyclone unit according to one embodiment of the present invention. FIG. 5 is an exploded perspective view showing the housing body and the Euro cover of a cyclone unit separated according to one embodiment of the present invention. FIG. 6 is a perspective view and a front view illustrating the dimensional relationships of a cyclone chamber, an upper inlet structure, a main discharge path, and a foreign matter discharge path in a cyclone unit according to one embodiment of the present invention. FIG. 7 is a drawing illustrating the planar structure and cross-sectional structure of a Euro cover according to one embodiment of the present invention. FIG. 8 is a diagram showing the results of analyzing the velocity distribution and particle behavior of the cooling water in a cyclone unit and a cooling plate according to one embodiment of the present invention. Specific details for implementing the invention

[0029] Various embodiments and / or aspects are now disclosed with reference to the drawings. For illustrative purposes, numerous specific details are disclosed in the following description to aid in a general understanding of one or more aspects. However, it will be apparent to those skilled in the art that these aspects may be practiced without such specific details. The following description and the accompanying drawings describe specific exemplary aspects of one or more aspects in detail. However, these aspects are exemplary, and some of the various methods in the principles of the various aspects may be used, and the descriptions are intended to include all such aspects and their equivalents. Specifically, terms such as “exemplary,” “example,” “aspect,” and “example” as used herein may not be interpreted as implying that any described aspect or design is superior or advantageous to other aspects or designs.

[0030] Hereinafter, identical or similar components are assigned the same reference numeral regardless of drawing symbols, and redundant descriptions thereof are omitted. Furthermore, in describing the embodiments disclosed in this specification, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions may obscure the essence of the embodiments disclosed in this specification. Additionally, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings.

[0031] Although terms such as first, second, etc. are used to describe various elements or components, it goes without saying that these elements or components are not limited by these terms. These terms are used merely to distinguish one element or component from another. Therefore, it goes without saying that the first element or component mentioned below may be the second element or component within the technical scope of the present invention.

[0032] Unless otherwise defined, all terms used in this specification (including technical and scientific terms) may be used in a meaning that is commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise.

[0033] Furthermore, the term "or" is intended to mean an implicit "or" rather than an exclusive "or." That is, unless otherwise specified or evident from the context, "X uses A or B" is intended to mean one of the natural implicit substitutions. In other words, if X uses A; if X uses B; or if X uses both A and B, "X uses A or B" may apply to any of these cases. Additionally, the term "and / or" as used herein should be understood to refer to and include all possible combinations of one or more of the enumerated related items.

[0034] Additionally, the terms “comprising” and / or “comprising” should be understood to mean that such features and / or components are present, but not to exclude the presence or addition of one or more other features, components, and / or groups thereof. Furthermore, unless otherwise specified or clearly evident from the context to indicate a singular form, the singular in this specification and claims should generally be interpreted to mean “one or more.”

[0035] When it is stated that one component is “connected” or “connected” to another component, it should be understood that it may be directly connected or connected to that other component, or that there may be other components in between. On the other hand, when it is stated that one component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

[0036] When elements or layers are referred to as being "on" or "on" another element or layer, it includes not only being directly on top of the other element or layer but also cases where another layer or element is interposed in between. On the other hand, when a component is referred to as being "directly on" or "immediately on," it indicates that no other element or layer is interposed in between.

[0037] Spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used to easily describe the relationship between one component or other components as illustrated in the drawings. Spatially relative terms should be understood as encompassing different orientations of the element during use or operation, in addition to the directions illustrated in the drawings.

[0038] The objectives and effects of the present invention, and the technical configurations for achieving them, will become clear by referring to the embodiments described in detail below in conjunction with the accompanying drawings. In describing the present invention, if it is determined that a detailed description of known functions or configurations may unnecessarily obscure the essence of the invention, such detailed description will be omitted. Furthermore, the terms described below are defined considering their functions in the present invention, and these may vary depending on the intentions or conventions of the user or operator.

[0039] However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to make the present invention complete and to fully inform those skilled in the art of the scope of the disclosure, and the present invention is defined only by the scope of the claims. Therefore, such definition should be based on the content throughout this specification.

[0040] Various embodiments and / or aspects are now disclosed with reference to the drawings. For illustrative purposes, numerous specific details are disclosed in the following description to aid in a general understanding of one or more aspects. However, it will be apparent to those skilled in the art that these aspects may be practiced without such specific details. The following description and the accompanying drawings describe specific exemplary aspects of one or more aspects in detail. However, these aspects are exemplary, and some of the various methods in the principles of the various aspects may be used, and the descriptions are intended to include all such aspects and their equivalents. Specifically, terms such as “exemplary,” “example,” “aspect,” and “example” as used herein may not be interpreted as implying that any described aspect or design is superior or advantageous to other aspects or designs.

[0041] Hereinafter, identical or similar components are assigned the same reference numeral regardless of drawing symbols, and redundant descriptions thereof are omitted. Furthermore, in describing the embodiments disclosed in this specification, detailed descriptions of related prior art are omitted if it is determined that such detailed descriptions may obscure the essence of the embodiments disclosed in this specification. Additionally, the attached drawings are intended only to facilitate understanding of the embodiments disclosed in this specification, and the technical concept disclosed in this specification is not limited by the attached drawings.

[0042] Although terms such as first, second, etc. are used to describe various elements or components, it goes without saying that these elements or components are not limited by these terms. These terms are used merely to distinguish one element or component from another. Therefore, it goes without saying that the first element or component mentioned below may be the second element or component within the technical scope of the present invention.

[0043] Unless otherwise defined, all terms used in this specification (including technical and scientific terms) may be used in a meaning that is commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise.

[0044] Furthermore, the term "or" is intended to mean an implicit "or" rather than an exclusive "or." That is, unless otherwise specified or evident from the context, "X uses A or B" is intended to mean one of the natural implicit substitutions. In other words, if X uses A; if X uses B; or if X uses both A and B, "X uses A or B" may apply to any of these cases. Additionally, the term "and / or" as used herein should be understood to refer to and include all possible combinations of one or more of the enumerated related items.

[0045] Additionally, the terms “comprising” and / or “comprising” should be understood to mean that such features and / or components are present, but not to exclude the presence or addition of one or more other features, components, and / or groups thereof. Furthermore, unless otherwise specified or clearly evident from the context to indicate a singular form, the singular in this specification and claims should generally be interpreted to mean “one or more.”

[0046] When it is stated that one component is “connected” or “connected” to another component, it should be understood that it may be directly connected or connected to that other component, or that there may be other components in between. On the other hand, when it is stated that one component is “directly connected” or “directly connected” to another component, it should be understood that there are no other components in between.

[0047] When elements or layers are referred to as being "on" or "on" another element or layer, it includes not only being directly on top of the other element or layer but also cases where another layer or element is interposed in between. On the other hand, when a component is referred to as being "directly on" or "immediately on," it indicates that no other element or layer is interposed in between.

[0048] Spatially relative terms such as "below," "beneath," "lower," "above," and "upper" may be used to easily describe the relationship between one component or other components as illustrated in the drawings. Spatially relative terms should be understood as encompassing different orientations of the element during use or operation, in addition to the directions illustrated in the drawings.

[0049] The objectives and effects of the present invention, and the technical configurations for achieving them, will become clear by referring to the embodiments described in detail below in conjunction with the accompanying drawings. In describing the present invention, if it is determined that a detailed description of known functions or configurations may unnecessarily obscure the essence of the invention, such detailed description will be omitted. Furthermore, the terms described below are defined considering their functions in the present invention, and these may vary depending on the intentions or conventions of the user or operator.

[0050] However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to make the present invention complete and to fully inform those skilled in the art of the scope of the disclosure, and the present invention is defined only by the scope of the claims. Therefore, such definition should be based on the content throughout this specification.

[0051] Embodiments of the present invention may be described in detail below with reference to FIGS. 1 to 8. The configurations shown in the drawings may be examples for convenience of explanation, and the shape, proportion, position, and connection relationship of each configuration may be changed within the scope of the technical concept of the invention.

[0052] In this specification, the cooling water may include water, an ethylene glycol-based cooling liquid, a propylene glycol-based cooling liquid, an insulating cooling liquid, an oil-based cooling liquid, or a mixture thereof. The foreign matter may include metal particles, oxides, corrosion products, scale, stripped sealant, sludge, sediment, or solids generated or introduced in the cooling water circulation system.

[0053] In this specification, cyclone flow may refer to a flow in which a fluid swirls along the inner surface of a chamber and has a radial velocity component or a tangential velocity component. Cyclone flow can guide foreign substances to a path different from the main flow depending on the particle density, size, fluid viscosity, inflow velocity, chamber shape, and outlet placement.

[0054] The cyclone unit (20) of the present invention may be positioned at the inlet end of the cooling plate (30). Accordingly, the cooling water may pass through the cyclone unit (20) before reaching the microchannel area (313) of the cooling plate (30), and the cyclone unit (20) may separate foreign substances from the cooling water or supply cooling water with a reduced concentration of foreign substances to the cooling plate (30).

[0055] Referring to FIGS. 1 to 3, the cooling system (10) may include a cyclone unit (20), a cooling plate (30), and a connecting member (40). The cyclone unit (20) may be positioned at the inlet end of the cooling plate (30) and may be configured to primarily process the cooling water supplied through the cooling water inlet (21).

[0056] The coolant inlet (21) can be connected to a coolant supply line, a pump discharge line, or a reservoir outlet line. The coolant flowing in through the coolant inlet (21) forms a swirling flow inside the cyclone unit (20) and then can be discharged to the cooling plate (30) side through the main discharge port (22).

[0057] The foreign matter discharge port (23) may be configured to discharge foreign matter separated from the cyclone unit (20) or some cooling water containing a relatively large amount of foreign matter. The foreign matter discharge port (23) may be connected to a drain line, a sedimentation pocket, a collection tank, a reservoir, or a low-pressure side line of a circulation system.

[0058] The cooling plate (30) may be a plate-shaped heat exchanger extending in the longitudinal direction. The cooling plate (30) may be placed in contact with or close to the heating device and may be configured to absorb heat transferred from the heating device as cooling water moves through an internal flow path.

[0059] The connecting member (40) may include a first connecting member (40) that branches off from the main outlet (22) of the cyclone unit (20) and fluidly connects the main outlet (22) and the first inlet (31) of the cooling plate (30), and a second connecting member (40) that fluidly connects the main outlet (22) and the second inlet (32) of the cooling plate (30). The first connecting member (40) and the second connecting member (40) may each include a tube, a connector, an O-ring joint, a welded part, a brazed part, or an integrally formed fluid passage.

[0060] In one embodiment, the cyclone unit (20) may be positioned on one side in the width direction of the cooling plate (30). This positioning may be configured to secure a heat exchange area in the longitudinal direction of the cooling plate (30) while also providing a foreign matter separation function at the inlet shear.

[0061] The arrow in FIG. 1 may indicate a flow in which the cooling water flows into the cooling water inlet (21), is branched through the cyclone unit (20), is supplied to the first inlet (31) and the second inlet (32) of the cooling plate (30), respectively, passes through the internal flow path or bypass flow path of the cooling plate (30), and is discharged through the outlet (33) at the other end in the longitudinal direction. This flow can be performed continuously during normal operation of the cooling water circulation system.

[0062] In one embodiment, the cooling system (10) may include a cyclone unit (20) and a cooling plate (30) as a single assembly. In another embodiment, the cyclone unit (20) may be composed of a separate module subsequently mounted on an existing cooling plate.

[0063] The configuration of FIG. 1 can demonstrate that a shear foreign matter separation function can be added without significantly altering the microchannel structure of the existing cooling plate. Therefore, the present invention can be advantageously applied to improve the long-term reliability of the microchannel cooling plate.

[0064] The cooling system (10) illustrated in FIG. 1 can be applied to a vehicle battery cooling device, a power semiconductor cooling device, an industrial heater cooling device, a server cooling module, or an immersion cooling auxiliary circuit. The application target may not be limited to a specific heating device.

[0065] Referring to FIG. 2, the cooling plate (30) may include an upper plate (310) and a lower plate (320). The upper plate (310) and the lower plate (320) may be arranged to face each other, and an internal channel through which cooling water flows may be formed between the two plates.

[0066] The upper plate (310) can form the upper exterior of the cooling plate (30), and the lower plate (320) can be thermally in contact with the heating device or positioned adjacent to the heating device. However, depending on the embodiment, the thermal contact positions of the upper plate (310) and the lower plate (320) may be interchanged.

[0067] On the upper plate (310), a portion of the first inlet (31), a portion of the second inlet (32), a portion of the distribution channel (312), or an upper boundary of the microchannel area (313) may be formed. On the lower plate (320), a lower boundary of the microchannel area (313), a heat exchanger corresponding to the heating device, a discharge manifold (321), and a portion of the discharge port (33) may be formed.

[0068] A first inlet (31), a second inlet (32), an inlet manifold (311), a distribution channel (312), a microchannel area (313), a confluence channel (314), and an exhaust manifold (321) may be formed inside the cooling plate (30). The inlet manifold (311) may be a channel for distributing cooling water supplied from the cyclone unit (20) to the first inlet (31) to a plurality of heat exchange zones.

[0069] The distribution channel (312) can branch the coolant from the inlet manifold (311) into a microchannel area (313). The distribution channel (312) may include a plurality of branch channels, inclined channels, expanded channels, or equalizing channels.

[0070] The microchannel region (313) may include a plurality of microchannels. The microchannels may be arranged to correspond to the high-temperature region of the heating device and may be configured to increase the heat transfer area between the cooling water and the cooling plate (30).

[0071] The merging channel (314) can re-merge the coolant that has passed through the microchannel area (313). The discharge manifold (321) can merge the coolant that has passed through the microchannel area (313) and the coolant that has been directly introduced by bypassing the microchannel area (313) through the second inlet (32), and guide the merged coolant to the discharge port (33) formed at the other end of the cooling plate (30) in the longitudinal direction.

[0072] In FIG. 2, the cyclone unit (20) and the cooling plate (30) may be shown in a separated state. This disassembled state may indicate that the cyclone unit (20) can be assembled as a shear module of the cooling plate (30).

[0073] The microchannel region (313) is advantageous for increasing heat exchange performance, but it may be relatively prone to clogging by foreign substances. The present invention can reduce the amount of foreign substances entering the microchannel region (313) by placing a cyclone unit (20) upstream of the microchannel region (313).

[0074] In one embodiment, the upper plate (310) and the lower plate (320) may be joined by brazing, welding, bonding, diffusion bonding, bolting, or clamping. The joining method may be selected based on the cooling water pressure, type of cooling water, manufacturing cost, and requirements of the application device. In another embodiment, the cooling plate (30) may be formed as a single piece by 3D printing or additive manufacturing processes. Since a separate bonding process is unnecessary, this eliminates the risk of leakage at the joint, minimizes heat transfer loss at the joint, and fundamentally resolves the problem of increased manufacturing difficulty due to the expansion of the number of layers.

[0075] Referring to FIG. 3, the cooling plate (30) may include a first heat exchange zone (301), a second heat exchange zone (302), and a third heat exchange zone (303) along the longitudinal direction. Each heat exchange zone may be arranged to correspond to one or more heating devices or heating regions.

[0076] The first heat exchange zone (301) may be positioned closest to the cyclone unit (20). Thus, the first heat exchange zone (301) may be the heat exchange zone through which the cooling water flowing into the cooling plate (30) first passes.

[0077] The second heat exchange zone (302) may be positioned at the rear end of the first heat exchange zone (301), and the third heat exchange zone (303) may be positioned at the rear end of the second heat exchange zone (302). The temperature of the cooling water may gradually rise as it absorbs heat from the heating device in each heat exchange zone.

[0078] Referring to the enlarged portion of FIG. 3, the first inlet (31) may include an inlet manifold (311) or be connected to the inlet manifold (311), and the inlet manifold (311) may be connected to a distribution channel (312). The distribution channel (312) may be formed to uniformly supply cooling water to the microchannel area (313). The second inlet (32) may be formed to bypass the microchannel area (313) and directly supply cooling water to the discharge manifold (321).

[0079] The microchannel region (313) may include a plurality of parallel channels, and each channel may provide a heat transfer area for heat exchange with a heating device. The channels of the microchannel region (313) may be configured as straight, curved, meandering, branched, or a mixed fin-channel type. However, if particles contained in the cooling water are introduced into the plurality of parallel channels of the microchannel region (313), some channels may become clogged or the flow distribution may become uneven.

[0080] In the present invention, the cyclone unit (20) may be positioned upstream of the first inlet (31) and the second inlet (32) of FIG. 3. Accordingly, the cooling water supplied to the first inlet (31) and the second inlet (32) may be cooling water after passing through the cyclone unit (20), and the concentration of foreign substances reaching the microchannel area (313) may be reduced or, preferably, completely removed.

[0081] In one embodiment, the microchannel regions (313) of the first to third heat exchange zones (301, 302, 303) may have the same channel structure. In another embodiment, each heat exchange zone may have different channel widths, number of channels, or fin densities depending on the heat generation amount, cooling water temperature rise, or pressure loss conditions.

[0082] The discharge manifold (321) can combine the cooling water that has passed through the microchannel area (313) of each heat exchange zone with the cooling water that has been directly introduced by bypassing the microchannel area (313) through the second inlet (32). The combined cooling water can be guided by the discharge manifold (321) to the outlet (33) at the other end in the longitudinal direction and can move to the next configuration of the cooling system (10) through the outlet (33).

[0083] The zone arrangement of FIG. 3 may show that the internal flow path of the cooling plate (30) may include a main flow path that sequentially includes a plurality of heat exchange zones and a bypass flow path that bypasses the micro-flow path area (313) and joins the discharge manifold (321). Even in such a multi-zone structure, the present invention can mitigate the risk of clogging and flow imbalance of the entire heat exchange zone through the shear foreign matter separation effect and the flow rate supplementation effect of the bypass flow path.

[0084] Referring to FIG. 4, the cyclone unit (20) may include a cooling water inlet (21), a main outlet (22), a foreign matter outlet (23), an inlet chamber (24), a tangential guide (241), a cyclone chamber (25), and a main guide channel (26).

[0085] Cooling water introduced through the cooling water inlet (21) can be supplied to the inlet chamber (24). The inlet chamber (24) can function as a space to switch the flow direction of the cooling water or stabilize the flow between the cooling water inlet (21) and the tangential guide (241).

[0086] In the cross-sectional view of FIG. 4(b), the flow indicated by the thick arrow may represent the flow of cooling water entering the cyclone chamber (25) through the tangential guide (241). The tangential guide (241) may be formed to allow the cooling water to flow in a tangential direction along the inner surface of the cyclone chamber (25) rather than flowing directly toward the center of the cyclone chamber (25).

[0087] When cooling water flows tangentially along the inner surface of the cyclone chamber (25), a clockwise (or counterclockwise) swirling flow can be formed inside the cyclone chamber (25). The swirling direction can be determined by the arrangement direction of the tangential guide (241), the connection position of the inlet chamber (24), and the position of the foreign matter discharge port (23).

[0088] When a swirling flow is formed, particles with relatively high density or inertia in the cooling water may move to the outer wall or lower area of ​​the cyclone chamber (25) by the centrifugal effect. These particles may be guided to the foreign matter discharge port (23) or sedimentation area rather than moving directly to the main guide channel (26).

[0089] The cooling water with relatively reduced foreign matter can move to the main guide channel (26) through the center or upper flow of the cyclone chamber (25). The main guide channel (26) can be connected to the main outlet (22), and the cooling water can be branched from the main outlet (22) and supplied to the first inlet (31) and second inlet (32) of the cooling plate (30).

[0090] In one embodiment, the cooling water discharged from the main outlet (22) may be divided into two branches. A portion of the divided cooling water may be supplied to the first inlet (31) of the cooling plate (30) through the first connecting member (40) described later, and another portion of the divided cooling water may be supplied to the second inlet (32) of the cooling plate (30) through the second connecting member (40).

[0091] At this time, the cooling water supplied through the first inlet (31) can perform heat exchange with the heating device by passing through the inlet manifold (311), the distribution path (312), and the micropath area (313), and then be joined to the discharge manifold (321) through the confluence path (314). The cooling water supplied through the second inlet (32) can be directly joined to the discharge manifold (321) without passing through the micropath area (313). The combined cooling water can be discharged to the outside of the cooling system (10) through the discharge port (33).

[0092] In another embodiment, the main outlet (22) may be formed as a single outlet and then branched into two outside the cyclone unit (20), and in yet another embodiment, the main outlet (22) may be formed as two branched outlets from the beginning. The branching shape may be selected according to the internal flow path design of the cyclone unit (20), the cross-sectional area of ​​the main guide path (26), and the required flow rate distribution conditions of the cooling plate (30).

[0093] In the embodiment illustrated in FIG. 4, the tangential guide (241) may be positioned between the inflow chamber (24) and the cyclone chamber (25). The tangential guide (241) may have a narrower cross-section than the inflow chamber (24), and this change in cross-section may contribute to increasing the tangential inflow velocity.

[0094] In one embodiment, the tangential guide (241) may be connected to the upper or middle height of the cyclone chamber (25). When the tangential guide (241) is connected to the upper side, the cooling water may form a flow component that starts a swirling flow from the upper side and then moves foreign matter in a downward direction.

[0095] In FIG. 4, the foreign matter discharge port (23) may be connected to the lower or lower side of the cyclone chamber (25). The position of the foreign matter discharge port (23) may be set so that foreign matter moved outward or downward by the swirling flow is discharged through a separate path without being re-entered into the main discharge port (22).

[0096] The structure of FIG. 4 can represent the core flow principle of the present invention. That is, the cooling water passes through the inlet chamber (24) and the tangential guide (241), and then flows into the cyclone chamber (25) in a tangential direction to form a swirling flow, after which the cooling water with reduced foreign matter can move to the cooling plate (30) through the main guide channel (26).

[0097] In another embodiment, the shape of the tangential guide (241) may be formed as a straight line, a curved line, a nozzle, a contracted line, or a diffuse line. The shape of the tangential guide (241) may be determined according to the target flow rate, pressure loss, foreign matter size, and the allowable pressure conditions of the cooling plate (30).

[0098] Referring to FIGS. 5 to 7, the cyclone unit (20) may include a housing body (200) and a flow path cover (210). The housing body (200) may include a housing base (201) and a housing side wall (202), and the flow path cover (210) may be coupled to the housing body (200) to close or form at least a portion of the flow path.

[0099] At least a portion of a cooling water inlet (21), an inlet chamber (24), a cyclone chamber (25), a tangential guide (241), a main guide channel (26), a main outlet (22), and a foreign matter outlet (23) may be formed in the housing body (200).

[0100] The Euro cover (210) can be coupled to cover the open Euro of the housing body (200). The Euro cover (210) can form the upper boundary of the main guide Euro (26), part of the tangential inlet (251), or part of the curved guide (262).

[0101] When the housing body (200) and the Euro cover (210) are combined, the coolant can flow along the coolant inlet (21), inlet chamber (24), tangential guide (241), cyclone chamber (25), main guide channel (26), and main outlet (22) without leaking to the outside.

[0102] The disassembled structure of FIG. 5 can demonstrate the feasibility of manufacturing and assembling the cyclone unit (20). By separately molding the housing body (200) and the Euro cover (210) and then combining them, a complex internal Euro can be implemented relatively easily.

[0103] In one embodiment, the housing body (200) and the flow path cover (210) may be plastic injection molded products. In another embodiment, the housing body (200) and the flow path cover (210) may be metal processed products, additively manufactured products, composite molded products, or brazed assemblies.

[0104] A sealing rib, an O-ring groove, an adhesive surface, a welding rib, or a gasket receiving portion may be formed at the joint between the housing body (200) and the Euro cover (210). This sealing structure may be configured to prevent cooling water leakage and maintain the internal pressure of the cyclone unit (20).

[0105] The tangential inlet (251) illustrated in FIG. 5 may be positioned in the upper region of the cyclone chamber (25). The tangential inlet (251) may be connected to the inlet chamber (24) or the tangential guide (241) and may guide the cooling water to flow in a tangential direction with respect to the inner circumference of the cyclone chamber (25).

[0106] The main guide channel (26) may include a straight guide section (261) and a curved guide section (262). The straight guide section (261) can guide the cooling water discharged from the cyclone chamber (25) in one direction, and the curved guide section (262) can change the flow direction of the cooling water toward the main outlet (22).

[0107] The structure of FIG. 5 can show that the cyclone unit (20) can be implemented as a module separated from the cooling plate (30). The modular cyclone unit (20) can be applied universally to various cooling plates (30) having a first inlet (31) and a second inlet (32), and can be easily maintained or replaced.

[0108] Referring to FIG. 6, the cyclone unit (20) may include a housing body (200), a housing base (201), a housing side wall (202), a cooling water inlet (21), a cyclone chamber (25), a tangential inlet (251), a main guide channel (26), a straight guide (261), and a curved guide (262).

[0109] In the front view of FIG. 6, the representative width (d1) of the cyclone chamber (25) and the inflow width (d2) of the tangential inflow section (251) may be shown. The representative width (d1) may be a dimension representing the swirling flow space of the cyclone chamber (25), and the inflow width (d2) may be a cross-sectional dimension of the inflow of cooling water flowing into the cyclone chamber (25) through the tangential inflow section (251).

[0110] In one embodiment, the inflow width (d2) of the tangential inflow section (251) may be formed to be smaller than the representative width (d1) of the cyclone chamber (25). Such d2 <d1의 관계는 동일 유량 조건에서 접선 유입부(251)를 통과하는 냉각수의 속도를 증가시킬 수 있고, 사이클론 챔버(25) 내 초기 선회 유동을 강화할 수 있다.

[0111] When the tangential inlet (251) is positioned at the top of the cyclone chamber (25) and has a small inlet width (d2), the cooling water can flow along the inner surface of the cyclone chamber (25) at a relatively fast speed. At this time, the tangential momentum of the cooling water can be increased, and the centrifugal effect acting on foreign substances can be increased.

[0112] In the structure of FIG. 6, if d2 is too small, the pressure loss may increase. Therefore, d2 can be set considering the performance of the cooling water pump, the required flow rate of the cooling plate (30), the size of the target separation particle, and the allowable pressure loss. For example, d2 can be set as a partial ratio of d1, and according to the embodiment, d2 / d1 can be selected in the range of 0.15 to 0.75.

[0113] In the front view of FIG. 6, the radius of curvature (r1) on the foreign matter discharge port (23) side and the radius of curvature (r2) on the tangential inlet port (251) side may be indicated. The radius of curvature (r1) on the foreign matter discharge port (23) side may represent the curvature formed by the lower flow boundary of the cyclone chamber (25) around the foreign matter discharge port (23), and the radius of curvature (r2) on the tangential inlet port (251) side may represent the curvature formed by the upper inlet boundary of the cyclone chamber (25) around the tangential inlet port (251) or the tangential guide port (241).

[0114] In one embodiment, the radius of curvature (r2) on the side of the tangential inlet (251) may be formed to be larger than the radius of curvature (r1) on the side of the foreign matter discharge port (23). The relationship r2 > r1 causes the main inlet path of the cooling water to have a relatively gentler curvature than the foreign matter discharge path, which can contribute to reducing flow separation and stably forming the tangential velocity component when the cooling water flows into the cyclone chamber (25) through the tangential inlet (251).

[0115] The radius of curvature (r1) on the foreign matter discharge port (23) side can be formed with a relatively small radius of curvature around the foreign matter discharge port (23). This structure can act as a flow boundary to guide foreign matter that has moved to the outer or lower region of the cyclone chamber (25) by swirling flow toward the foreign matter discharge port (23).

[0116] If the radius of curvature (r2) on the side of the tangential inlet (251) is formed to be larger than the radius of curvature (r1) on the side of the foreign matter discharge port (23), the main flow of cooling water through the tangential inlet (251) can enter the cyclone chamber (25) along a relatively gentle curvature. Accordingly, the tangential velocity component of the cooling water can be preserved, and a stable swirling flow can be formed inside the cyclone chamber (25).

[0117] On the other hand, if the radius of curvature (r1) on the foreign matter discharge port (23) side is formed to be relatively small, the flow path on the foreign matter discharge port (23) side can function as an auxiliary discharge path rather than the main flow of cooling water. This structure can be configured to send most of the cooling water to the main guide flow path (26), while also guiding foreign matter concentrated by swirling flow to the foreign matter discharge port (23).

[0118] In one embodiment, the tangential inlet (251) may be formed at a position higher than the foreign matter outlet (23). Even if this height relationship is not indicated by a separate reference numeral, the main inflow of cooling water may flow tangentially from the upper or middle part of the cyclone chamber (25), and may provide a flow path that allows foreign matter with relatively high density or inertia to move toward the lower foreign matter outlet (23) by the swirling flow.

[0119] In another embodiment, the height difference between the tangential inlet (251) and the foreign matter outlet (23) can be adjusted according to at least one of the cooling water flow rate, the particle size of the foreign matter, the density of the foreign matter, the diameter of the cyclone chamber (25), and the position of the main guide channel (26). In this case, the height of the tangential inlet (251) can be set considering the initial formation stability of the swirling flow, and the height of the foreign matter outlet (23) can be set considering the discharge efficiency of the foreign matter separated by the swirling flow.

[0120] In FIG. 6, the tangential inlet (251) may be located at the top of the cyclone chamber (25). When the tangential inlet (251) is located at the top, the incoming cooling water can form a swirling flow from the top and then induce foreign matter behavior to move downward or outward within the chamber. This arrangement may be advantageous for spatially separating the functions of the main guide channel (26) and the foreign matter discharge port (23).

[0121] d1, d2, r1, and r2 in FIG. 6 may be key design variables of the present invention. d2<d1의 관계는 접선 유입 속도 및 선회 유동 형성과 관련될 수 있고, r2> The relationship of r1 can be used to balance separation performance and pressure loss through the difference in curvature between the upper inlet path and the lower foreign matter discharge path.

[0122] In one embodiment, the relationship between d1, d2, r1 and r2 can be adjusted according to the viscosity of the cooling water, the density of the target foreign substance, the particle size of the target foreign substance, the flow rate of the cooling water, and the allowable pressure loss of the cooling plate (30). Accordingly, the dimensional relationship of FIG. 6 is not limited to specific numerical values ​​and can be understood as a functional relationship.

[0123] The structure of FIG. 6 may apply the principles of tangential inflow and centrifugal separation used in cyclone technology for vacuum cleaners to the shear structure of a cooling plate for liquid cooling water. However, the application environment and effect may differ in that the present invention is not a structure for separating dust in the air, but a structure for separating solid foreign substances in the cooling water before they enter the microchannel area (313).

[0124] Referring to FIG. 7, the Euro cover (210) may include a cover base (211) and a cover partition (212). The cover base (211) may be formed as a plate-shaped base, and the cover partition (212) may protrude from the cover base (211) to form a wall structure that is coupled to the Euro of the housing body (200).

[0125] In the plan view of FIG. 7, the Euro cover (210) may be positioned to cover one side of the cyclone unit (20). The cover base (211) may close the open or bottom surface of the housing body (200), and the cover bulkhead (212) may form a partial boundary of the main guide channel (26), the curved guide section (262), or the cyclone chamber (25).

[0126] Referring to the AA cross-section of FIG. 7, the cover bulkhead (212) can form a flow path boundary connected to the main outlet (22). The curved guide (262) can have a curved cross-section to guide the cooling water discharged from the cyclone chamber (25) toward the main outlet (22).

[0127] Referring to the BB cross-section of FIG. 7, the cover bulkhead (212) can form a flow path boundary around the cyclone chamber (25) and the foreign matter discharge port (23). The cover bulkhead (212) can engage with the corresponding wall of the housing body (200) to suppress cooling water leakage and allow swirling flow to form along the intended path.

[0128] The cover base (211) may be formed as a flat plate and may come into contact with the bonding surface of the housing body (200). A sealing material, an adhesive layer, a welded portion, or a compression portion may be disposed between the cover base (211) and the housing body (200).

[0129] The cover bulkhead (212) may be a structure that determines the height of the flow path. The height of the cover bulkhead (212) may be set according to the cooling water flow rate, pressure loss, and flow path cross-sectional area, and may have different heights in some sections.

[0130] The Euro cover (210) of Fig. 7 can be combined with the housing body (200) to complete the internal flow path of the cyclone unit (20). Accordingly, a complex three-dimensional flow path can be realized through the combination of divided parts without processing it as a single block.

[0131] In one embodiment, the Euro cover (210) may be formed of a transparent or translucent material. In this case, the flow status of the coolant, bubble generation, location of foreign matter accumulation, or leakage can be visually checked during the manufacturing or testing phase.

[0132] In another embodiment, the Euro cover (210) may be formed of a metal material. The metal material can improve durability under high temperature or high pressure cooling water conditions and can increase thermal or mechanical bonding with the cooling plate (30).

[0133] The cross-sectional structure of FIG. 7 may show that the main guide channel (26) and the foreign matter discharge port (23) may be formed at different heights or paths. These height differences or path differences may contribute to preventing foreign matter from entering the main discharge port (22) from the cyclone chamber (25).

[0134] Referring to FIG. 8, the velocity distribution or particle behavior of the cooling water inside the cyclone unit (20) can be illustrated as an analysis result. The color distribution in FIG. 8 may indicate the velocity magnitude or flow intensity of the cooling water, and a relatively high velocity region and a low velocity region may be distinguished.

[0135] In FIG. 8, the cooling water may be introduced into the cyclone chamber (25) through the tangential guide (241) or the tangential inlet (251). Immediately after introduction, the cooling water may have a high velocity component and may form a swirling flow along the inner surface of the cyclone chamber (25).

[0136] The analysis result of FIG. 8 can show the flow distribution between the cooling water inlet (21), the main outlet (22), and the foreign matter outlet (23). The main flow of cooling water can move toward the main outlet (22), and particles or foreign matter can be concentrated toward the foreign matter outlet (23).

[0137] In FIG. 8, the center of the cyclone chamber (25) may have a relatively lower particle concentration or a different velocity distribution compared to the outer wall. This distribution may result in the effect of particles moving radially due to swirling flow.

[0138] In one embodiment, the analysis of FIG. 8 may represent the instantaneous flow state at a specific time, for example, about 0.320 seconds after inflow. The analysis time may be changed depending on the cooling water flow rate, chamber volume, particle size, and analysis conditions.

[0139] The results of FIG. 8 may support the fact that the tangential inflow structure can form a swirling flow inside the cyclone chamber (25). Additionally, the results of FIG. 8 may show that the foreign matter discharge port (23) can be positioned to discharge particles moved by the swirling flow.

[0140] The interpretation result of FIG. 8 may be an example to explain the effects of the present invention. In an actual device, the flow velocity, particle behavior, and separation efficiency may vary depending on the physical properties of the cooling water, flow rate, pump performance, particle density, particle size, chamber dimensions, and outlet conditions.

[0141] In one embodiment, the analysis of FIG. 8 can be used to adjust the dimensional relationships of d1, d2, r1, and r2 during the design phase. For example, if the tangential flow velocity is insufficient, d2 can be reduced or the length of the tangential guide (241) can be adjusted, and if the pressure loss is excessive, d2 can be increased or the curvature of the curve guide (262) can be relaxed.

[0142] The interpretation result of FIG. 8 can be used as a basis to explain that while the main flow of the cooling water moves stably to the main outlet (22), foreign matter can be separated toward the foreign matter outlet (23). Therefore, FIG. 8 may be a drawing that reinforces the flow action and effect of the present invention.

[0143] In one embodiment, the cyclone unit (20) may be configured to include a cooling water inlet (21), an inlet chamber (24), a tangential guide (241), a cyclone chamber (25), a main guide channel (26), a main outlet (22), and a foreign matter outlet (23) within a single housing.

[0144] In one embodiment, the cyclone unit (20) may function as a fluid treatment module that separates foreign substances by imparting a tangential velocity component to the coolant, rather than being a connector that simply switches the flow direction of the coolant.

[0145] In one embodiment, the internal flow path of the cyclone unit (20) can be designed to provide sufficient turning strength without excessively increasing the pressure loss of the coolant. To this end, the cross-section of the inlet chamber (24), the width of the tangential guide (241), the diameter of the cyclone chamber (25), and the curvature of the main guide flow path (26) can be combined.

[0146] In one embodiment, the cyclone chamber (25) may have a cross-section that is circular, elliptical, oblong, or polygonal. A circular cross-section may be advantageous for forming a stable swirling flow, and an elliptical or oblong cross-section may be advantageous for reducing packaging space.

[0147] In one embodiment, the foreign matter discharge port (23) may be positioned at the bottom, side, or outer circumference of the cyclone chamber (25). The foreign matter discharge port (23) may be an always-open discharge port, and in another embodiment, it may be a drain port that is opened only during maintenance.

[0148] In one embodiment, the main outlet (22) may be an outlet for supplying cooling water to the cooling plate (30). The main outlet (22) may be positioned to be connected to the center of the cyclone chamber (25) or to an area with a relatively low concentration of foreign matter.

[0149] In one embodiment, the cooling plate (30) may form an internal flow path by combining an upper plate (310) and a lower plate (320). The internal flow path may include a first inlet (31), an inlet manifold (311), a distribution flow path (312), a micro-flow path region (313), a confluence flow path (314), an outlet manifold (321), a second inlet (32), and an outlet (33).

[0150] Among these, the first inlet (31) is connected to the inlet manifold (311) and may be the inlet of a main flow path that passes through the inlet manifold (311), the distribution flow path (312), and the micro-flow path area (313) and joins the discharge manifold (321) through the joining flow path (314). The second inlet (32) is directly connected to the discharge manifold (321) and may be the inlet of a bypass flow path that joins the discharge manifold (321) directly without passing through the micro-flow path area (313). The discharge port (33) is a single outlet through which the cooling water joined from the discharge manifold (321) is discharged to the outside, and may be positioned at the other end in the longitudinal direction of the cooling plate (30).

[0151] In another embodiment, some components of the internal flow path may be formed alone on either the upper plate (310) or the lower plate (320), or may be formed by dividing them on both the upper plate (310) and the lower plate (320). For example, parts of the inlet manifold (311) and the distribution flow path (312) may be formed on the upper plate (310), and the lower boundary of the microflow path region (313) and the discharge manifold (321) may be formed on the lower plate (320).

[0152] In one embodiment, the microchannel region (313) may include a plurality of narrow channels to increase the heat exchange efficiency with the heating device. The channels of the microchannel region (313) can increase the heat transfer area while maintaining the flow direction of the cooling water longer.

[0153] In one embodiment, the first inlet (31) and the second inlet (32) of the cooling plate (30) may be connected to the main outlet (22) of the cyclone unit (20). Accordingly, the cooling water supplied to the cooling plate (30) may be cooling water that has been primarily treated by the cyclone unit (20).

[0154] In one embodiment, the cooling plate (30) may be thermally coupled with a battery cell, battery module, power module, inverter, converter, onboard charger, power semiconductor package, or high-power LED module. Depending on the type of heat source, the length, width, thickness, and flow path arrangement of the cooling plate (30) may be changed.

[0155] In one embodiment, the internal flow path of the cooling plate (30) may include a plurality of heat exchange zones (301, 302, 303). Each heat exchange zone may have the same flow path structure, or may have different flow path densities or channel widths depending on the heat distribution.

[0156] In one embodiment, the cyclone unit (20) of the present invention is positioned at the inlet end of the cooling plate (30), so the more complex the internal flow path structure of the cooling plate (30), the greater the protective effect it can provide.

[0157] In one embodiment, d1 may represent a representative width or representative diameter of the cyclone chamber (25). d1 may determine the size of the space where swirling flow is formed and may affect the coolant residence time, swirl radius, and pressure loss.

[0158] In one embodiment, d2 may represent the inflow width or inflow diameter of the tangential inflow section (251). d2 may determine the speed and tangential momentum when the cooling water flows into the cyclone chamber (25).

[0159] In one embodiment, d2 <d1의 관계는 접선 유입부(251)를 일종의 가속 유입부 또는 노즐형 유입부로 기능하게 할 수 있다. 동일 유량 조건에서 유입 단면이 작아지면 유입 속도가 증가할 수 있고, 유입 속도의 증가는 사이클론 챔버(25) 내부의 선회 강도를 증가시킬 수 있다.

[0160] In one embodiment, r1 may represent the radius of curvature on the side of the foreign matter discharge port (23). r1 may be related to the flow resistance of the path through which foreign matter, moved outward or downward by swirling flow, is guided to the foreign matter discharge port (23).

[0161] In one embodiment, r2 may represent the radius of curvature on the side of the tangential inlet (251). If r2 is formed large, the cooling water flows in smoothly, which can reduce flow separation or rapid energy loss. In another embodiment, the tangential inlet (251) may be formed at a higher position than the foreign matter discharge port (23), and this height relationship can contribute to spatially separating the main inflow of cooling water and the foreign matter discharge flow without separate reference numerals.

[0162] When the operation of the cooling system (10) begins, a pump or cooling water supply source can supply cooling water to the cooling water inlet (21). The cooling water can pass through the cooling water inlet (21) and move to the inlet chamber (24).

[0163] Cooling water reaching the inlet chamber (24) can be guided toward the tangential guide (241). The tangential guide (241) can change the flow direction of the cooling water to a tangential direction along the inner surface of the cyclone chamber (25).

[0164] During the process of passing through the tangential guide (241), the speed of the cooling water can be increased due to a change in the inflow cross-section. In particular, if the inflow width (d2) of the tangential inflow section (251) is formed to be smaller than the representative width (d1) of the cyclone chamber (25), the tangential inflow speed of the cooling water can be increased.

[0165] When cooling water flows into the cyclone chamber (25) in a tangential direction, a swirling flow can be formed inside the cyclone chamber (25). The swirling flow can move foreign substances contained in the cooling water radially outward or downward.

[0166] Foreign matter can be guided from the outside or bottom of the cyclone chamber (25) toward the foreign matter discharge port (23). The foreign matter discharge port (23) may discharge some cooling water containing foreign matter, or be connected to a space where foreign matter is settled or collected.

[0167] Coolant with a relatively lower concentration of foreign substances can move to the main guide channel (26). The main guide channel (26) can guide the coolant to the main outlet (22) through a straight guide section (261) and a curved guide section (262).

[0168] Cooling water passing through the main outlet (22) can be divided into two branches. One branch can be supplied to the first inlet (31) of the cooling plate (30) through the first connecting member (40), and the other branch can be supplied to the second inlet (32) of the cooling plate (30) through the second connecting member (40).

[0169] Cooling water supplied through the first inlet (31) can sequentially pass through the inlet manifold (311), the distribution path (312), the micropath area (313), the merging path (314), and the discharge manifold (321). At this time, the cooling water can absorb heat transferred from the heating device while passing through the micropath area (313). Cooling water supplied through the second inlet (32) can flow directly into the discharge manifold (321) without passing through the micropath area (313) and can be combined with the cooling water that has passed through the micropath area (313). The combined cooling water can be discharged through the discharge port (33) to the external piping or heat exchanger of the cooling system (10).

[0170] In one embodiment, in operating scenario 1, the cooling water flow rate may be increased or decreased depending on the heat load of the heating device. If the flow rate increases, the velocity of the cooling water passing through the tangential inlet (251) may also increase, and the swirling intensity inside the cyclone chamber (25) may increase. However, if the flow rate increases excessively, the pressure loss may increase, so the control unit may be configured to adjust the pump rotation speed or the valve opening.

[0171] In another embodiment, in operating scenario 1, the foreign matter discharge port (23) may be opened restrictively during normal operation and fully opened during maintenance. This structure may be configured to periodically remove foreign matter accumulated in the cyclone chamber (25) while maintaining most of the coolant in the main discharge port (22).

[0172] In one embodiment, in operating scenario 2, the cooling water flow rate may be increased or decreased depending on the heat load of the heating device. If the flow rate increases, the velocity of the cooling water passing through the tangential inlet (251) may also increase, and the swirling intensity inside the cyclone chamber (25) may increase. However, if the flow rate increases excessively, the pressure loss may increase, so the control unit may be configured to adjust the pump rotation speed or the valve opening.

[0173] In another embodiment, in operating scenario 2, the foreign matter discharge port (23) may be opened restrictively during normal operation and fully opened during maintenance. This structure may be configured to periodically remove foreign matter accumulated in the cyclone chamber (25) while maintaining most of the coolant in the main discharge port (22).

[0174] In one embodiment, in operating scenario 3, the cooling water flow rate may be increased or decreased depending on the heat load of the heating device. If the flow rate increases, the velocity of the cooling water passing through the tangential inlet (251) may also increase, and the swirling intensity inside the cyclone chamber (25) may increase. However, if the flow rate increases excessively, the pressure loss may increase, so the control unit may be configured to adjust the pump rotation speed or the valve opening.

[0175] In another embodiment, in operating scenario 3, the foreign matter discharge port (23) may be opened restrictively during normal operation and fully opened during maintenance. This structure may be configured to periodically remove foreign matter accumulated in the cyclone chamber (25) while maintaining most of the coolant in the main discharge port (22).

[0176] In one embodiment, in operating scenario 4, the cooling water flow rate may be increased or decreased depending on the heat load of the heating device. If the flow rate increases, the velocity of the cooling water passing through the tangential inlet (251) may also increase, and the swirling intensity inside the cyclone chamber (25) may increase. However, if the flow rate increases excessively, the pressure loss may increase, so the control unit may be configured to adjust the pump rotation speed or the valve opening.

[0177] In another embodiment, in operating scenario 4, the foreign matter discharge port (23) may be opened restrictively during normal operation and fully opened during maintenance. This structure may be configured to periodically remove foreign matter accumulated in the cyclone chamber (25) while maintaining most of the coolant in the main discharge port (22).

[0178] In one embodiment, in operating scenario 5, the cooling water flow rate may be increased or decreased depending on the heat load of the heating device. If the flow rate increases, the velocity of the cooling water passing through the tangential inlet (251) may also increase, and the swirling intensity inside the cyclone chamber (25) may increase. However, if the flow rate increases excessively, the pressure loss may increase, so the control unit may be configured to adjust the pump rotation speed or the valve opening.

[0179] In another embodiment, in operating scenario 5, the foreign matter discharge port (23) may be opened restrictively during normal operation and fully opened during maintenance. This structure may be configured to periodically remove foreign matter accumulated in the cyclone chamber (25) while maintaining most of the coolant in the main discharge port (22).

[0180] In one embodiment, the cyclone chamber (25) may be formed as a cylindrical chamber. In another embodiment, the cyclone chamber (25) may be formed as a chamber having an elliptical, oblong, planar, or polygonal cross-section.

[0181] In one embodiment, only one tangential guide (241) may be formed. In another embodiment, a plurality of tangential guides may be formed at different heights or different angles. The plurality of tangential guides may contribute to an increase in flow rate or an improvement in swirling uniformity.

[0182] In one embodiment, the foreign matter discharge port (23) may be directly connected to the lower part of the cyclone chamber (25). In another embodiment, the foreign matter discharge port (23) may be connected to the cyclone chamber (25) through a sedimentation pocket, a valve, a discharge tube, or a collection tank.

[0183] In one embodiment, the main guide channel (26) may include a straight guide section (261) and a curved guide section (262). In another embodiment, the main guide channel (26) may include a spiral guide section, a diffusion guide section, or a pressure recovery section.

[0184] In one embodiment, the cooling plate (30) may include three heat exchange zones (301, 302, 303). In another embodiment, the cooling plate (30) may include one, two, or four or more heat exchange zones.

[0185] In one embodiment, a cooling plate equipped with a cyclone foreign matter separation unit may include a cooling plate body (30) and a cyclone unit (20).

[0186] The above cooling plate body (30) may be extended in a plate shape, and an internal flow path through which cooling water flows may be formed inside. In one embodiment, a first inlet (31) and a second inlet (32) through which cooling water flows in from the outside may be arranged together on one side of the cooling plate body (30), and an outlet (33) through which cooling water that has passed through the internal flow path is discharged to the outside may be arranged on the opposite side of the one side or at the other end in the longitudinal direction of the cooling plate body (30).

[0187] An inlet manifold (311) for distributing the incoming cooling water to a plurality of heat exchange zones may be formed at the rear end of the first inlet (31), and the cooling water branched from the inlet manifold (311) may be guided by a distribution channel (312) and supplied to a microchannel area (313). The microchannel area (313) may be connected to the distribution channel (312) and may include a plurality of microchannels for heat exchange with a heating device.

[0188] The discharge manifold (321) can be formed so that the cooling water joined by the confluence channel (314) at the rear end of the microchannel area (313) and the cooling water directly introduced by bypassing the microchannel area (313) through the second inlet (32) can be joined together, and the combined cooling water can be guided to the discharge port (33). That is, the second inlet (32) can function as the entrance of a bypass channel that does not pass through the microchannel area (313), and the cooling water introduced through the second inlet (32) can be discharged to the discharge port (33) after being joined by the main flow that has passed through the microchannel area (313) in the discharge manifold (321).

[0189] According to this dual inlet structure, the pressure burden applied to the microchannel area (313) can be compensated for, and even if a partial blockage occurs in the microchannel area (313), a portion of the cooling water can be directly joined to the discharge manifold (321) through a bypass channel via the second inlet (32), thereby improving the flow rate stability of the cooling water circulation system.

[0190] The cyclone unit (20) may be coupled to the front end of one side of the cooling plate body (30). The cyclone unit (20) may be configured to form a swirling flow in the cooling water supplied from the outside to separate foreign substances contained in the cooling water, and then split the cooling water with reduced foreign substances into two branches to supply to the first inlet (31) and the second inlet (32), respectively.

[0191] In one embodiment, the cyclone unit (20) may further include a cooling water inlet (21) into which cooling water is introduced from an external cooling water supply line, a main outlet (22) into which cooling water with reduced foreign matter is discharged, a foreign matter outlet (23) into which some cooling water containing a relatively large amount of separated foreign matter is discharged, a cyclone chamber (25) into which cooling water introduced through the cooling water inlet (21) forms a swirling flow, a tangential inlet (251) into which cooling water introduced from the cooling water inlet (21) is introduced in a tangential direction along the inner circumference of the cyclone chamber (25), and a main guide channel (26) into which cooling water that has undergone swirling flow in the cyclone chamber (25) is guided to the main outlet (22).

[0192] The cooling water discharged from the main outlet (22) can be branched into two branches via the connecting member (40) described later, and the branched cooling water can be supplied to the first inlet (31) and the second inlet (32) of the cooling plate (30), respectively. Meanwhile, the foreign matter discharge outlet (23) can be connected to a drain line, a sedimentation pocket, a collection tank, a reservoir, or a low-pressure side line of a circulation system.

[0193] In one embodiment, the tangential inlet (251) may be positioned in the upper region of the cyclone chamber (25). Additionally, the inlet width (d2) of the tangential inlet (251) may be formed to be smaller than the representative width (d1) of the cyclone chamber (25).

[0194] If the inflow width (d2) of the tangential inflow section (251) is formed to be smaller than the representative width (d1) of the cyclone chamber (25), the flow velocity of the cooling water passing through the tangential inflow section (251) under the same flow rate conditions can be increased, and the tangential momentum of the initial swirling flow within the cyclone chamber (25) can be enhanced. Accordingly, the centrifugal effect acting on foreign substances can be increased, and the tendency for foreign substances to move toward the outer periphery of the cyclone chamber (25) or toward the foreign substance discharge port (23) can be increased.

[0195] In one embodiment, the cyclone chamber (25) may have a radius of curvature (r2) on the tangential inlet side formed by an upper inlet boundary on the tangential inlet side (251), and a radius of curvature (r1) on the foreign matter discharge side formed by a lower flow boundary on the foreign matter discharge side (23).

[0196] The radius of curvature (r2) on the tangential inlet side can be formed to be larger than the radius of curvature (r1) on the foreign matter discharge side. This relationship of r2 > r1 allows the main inlet path of the cooling water to have a relatively gentler curvature than the foreign matter discharge path, thereby reducing flow separation of the cooling water flowing into the cyclone chamber (25) and contributing to the stable preservation of the tangential velocity component. Additionally, if the radius of curvature (r1) on the foreign matter discharge side (23) is formed to be relatively small, it can act as a flow boundary that guides foreign matter, which has moved to the outer or lower region of the cyclone chamber (25) by swirling flow, toward the foreign matter discharge side (23).

[0197] In one embodiment, the tangential inlet (251) may be formed at a higher position than the foreign matter discharge port (23).

[0198] According to this height relationship, the main inflow of cooling water can be introduced tangentially from the upper part of the cyclone chamber (25), and a flow path can be formed in which foreign substances with relatively high density or inertia move toward the foreign substance discharge port (23) located at the lower part of the cyclone chamber (25) due to swirling flow. Accordingly, the re-entry of separated foreign substances toward the main discharge port (22) can be suppressed.

[0199] In another embodiment, the height difference between the tangential inlet (251) and the foreign matter outlet (23) can be adjusted according to at least one of the cooling water flow rate, the particle size of the foreign matter, the density of the foreign matter, the diameter of the cyclone chamber (25), and the position of the main guide channel (26).

[0200] In one embodiment, the cyclone unit (20) may further include a housing body (200) and a flow path cover (210). At least a portion of the cooling water inlet (21), the cyclone chamber (25), the tangential inlet (251), the main guide flow path (26), the main outlet (22), and the foreign matter outlet (23) may be formed in the housing body (200).

[0201] The above Euro cover (210) can be coupled to cover the open Euro of the housing body (200) and can form the upper boundary of the main guide Euro (26) or a part of the boundary of the cyclone chamber (25).

[0202] The above-mentioned Euro cover (210) may be provided with a plate-shaped cover base (211) and a cover bulkhead (212) protruding from the cover base (211) to form a Euro boundary. For example, the housing body (200) and the Euro cover (210) may be plastic injection molded products, metal processed products, additively manufactured products, composite molded products, or brazed assemblies, and a sealing rib, O-ring groove, adhesive surface, welding rib, or gasket receiving portion may be formed at the joint portion between the housing body (200) and the Euro cover (210).

[0203] In one embodiment, the flow rate of the cooling water directly introduced through the second inlet (32) by bypassing the microchannel area (313) can be set to be smaller than the flow rate of the cooling water introduced into the microchannel area (313) through the first inlet (31).

[0204] According to this flow distribution, the main flow of the cooling water can perform heat exchange with the heating device while passing through the first inlet (31) and the microchannel area (313), and the bypass flow through the second inlet (32) can directly join the discharge manifold (321) with a relatively small flow rate. Accordingly, sufficient heat exchange performance can be secured in the microchannel area (313), and at the same time, pressure loss in the microchannel area (313) can be compensated for, or in the event of partial blockage in the microchannel area (313), a portion of the cooling water can be maintained through the bypass channel.

[0205] For example, the flow rate ratio of the first inlet (31) and the second inlet (32) can be adjusted by at least one of the branch cross-sectional area at the rear end of the main outlet (22) of the cyclone unit (20), the inner diameter of the first connecting member and the second connecting member, the pressure loss of the microchannel area (313), and the cross-sectional area of ​​the discharge manifold (321).

[0206] In one embodiment, the cooling plate (30) may include a first heat exchange zone (301), a second heat exchange zone (302), and a third heat exchange zone (303) arranged sequentially along the longitudinal direction.

[0207] The first heat exchange zone (301) may be positioned closest to the cyclone unit (20) and thus may be the heat exchange zone through which the cooling water introduced through the first inlet (31) first passes. As the cooling water passes through the first heat exchange zone (301), the second heat exchange zone (302), and the third heat exchange zone (303) in sequence, it absorbs heat from the heating device, and its temperature may gradually rise.

[0208] In another embodiment, each of the first heat exchange zone (301), the second heat exchange zone (302), and the third heat exchange zone (303) may include a microchannel area (313) having different channel widths, number of channels, or fin densities depending on the heat generation amount, cooling water temperature rise, or pressure loss conditions. For example, in a heat exchange zone corresponding to a high heat generation amount, the number of channels may be increased or the fin density increased to expand the heat exchange area, and in a zone where pressure loss is a concern, the channel width may be formed relatively wide.

[0209] In one embodiment, the ratio (d2 / d1) of the inflow width (d2) of the tangential inflow section (251) and the representative width (d1) of the cyclone chamber (25) can be selected from a range of 0.15 to 0.75. If the ratio (d2 / d1) is less than 0.15, the pressure loss in the tangential inflow section (251) may increase excessively, and if it exceeds 0.75, the effect of increasing the tangential inflow speed may not be sufficiently secured, and the cyclone separation performance may be degraded.

[0210] In another embodiment, the cooling plate (30) may include an upper plate (310) and a lower plate (320) positioned to face each other. The upper plate (310) and the lower plate (320) may be joined by brazing, welding, bonding, diffusion bonding, bolting, or clamping. In yet another embodiment, the upper plate (310) and the lower plate (320) may be formed as a single piece by a 3D printing or additive manufacturing process.

[0211] In another embodiment, the cooling plate (30) equipped with the cyclone unit (20) may be applied to a cooling water circulation system of a vehicle battery cooling device, a power semiconductor cooling device, an industrial heater cooling device, a server cooling module, or an immersion cooling auxiliary circuit. However, the application may not be limited to a specific heating device.

[0212] In one embodiment, the cooling system (10) may include a cooling plate equipped with the cyclone foreign matter separation unit described above, a first connecting member, and a second connecting member.

[0213] The first connecting member can fluidly connect the main outlet (22) of the cyclone unit (20) and the first inlet (31) of the cooling plate (30). The second connecting member can fluidly connect the main outlet (22) of the cyclone unit (20) and the second inlet (32) of the cooling plate (30). The first connecting member and the second connecting member may be collectively referred to by the reference numeral (40).

[0214] For example, the first connecting member (40) and the second connecting member (40) may each include at least one of a tube, a connector, an O-ring joint, a weld, a brazing, or an integrally formed fluid section.

[0215] According to this branch connection structure, the cooling water purified in the cyclone unit (20) is branched into two from the main outlet (22), one branch can pass through the first inlet (31) and perform heat exchange in the microchannel area (313), and the other branch can pass through the second inlet (32), bypass the microchannel area (313), and join the discharge manifold (321). Accordingly, the function of separating foreign substances from the cooling water, the cooling function of the heating device, and the microchannel bypass function can be implemented as a single module, and the installation space can be reduced compared to adding a separate external separation device or filter housing, and the assembly of the cooling system (10) can be improved.

[0216] In the specific embodiments of the present disclosure described above, the components of a cooling plate equipped with a cyclone foreign matter separation unit included in the present disclosure and a cooling system including the same are expressed in a singular or plural form according to the specific embodiments presented. However, the singular or plural expression of the components is selected to suit the situation presented for convenience of explanation, and the present disclosure is not limited to a singular or plural form of components; even if a component is expressed in the plural form, it may be composed of a singular form, or even if a component is expressed in the singular form, it may be composed of a plural form.

[0217] Meanwhile, although specific embodiments have been described in the detailed description of the present disclosure, it is understood that various modifications are possible within the scope of the present disclosure. Therefore, the scope of the present disclosure should not be limited to the described embodiments, but should be defined by the claims set forth below as well as equivalents thereof.

[0218] The description of the presented embodiments is provided so that any person skilled in the art may use or practice the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be applied to other embodiments without departing from the scope of the present invention. Thus, the present invention is not limited to the embodiments presented herein, but should be interpreted in the broadest possible scope consistent with the principles and novel features presented herein.

Claims

Claim 1 A cooling plate equipped with a cyclone foreign matter separation unit, comprising: a cooling plate body extending in a plate shape and having an internal flow path formed therein through which cooling water flows, wherein a first inlet and a second inlet are arranged together on one side for the inflow of cooling water from the outside, and an outlet is arranged on the opposite side of the one side or at the other end in the longitudinal direction for the cooling water passing through the internal flow path to be discharged to the outside; a microflow path region including an inlet manifold formed at the rear end of the first inlet and distributing the inflowed cooling water to a plurality of heat exchange zones, a distribution path guiding the cooling water branched from the inlet manifold, and a plurality of microchannels connected to the distribution path for heat exchange with a heating device; and an outlet manifold formed to allow the cooling water joined at the rear end of the microflow path region and the cooling water directly introduced by bypassing the microflow path region through the second inlet to be joined, and guiding the joined cooling water to the outlet. A cooling plate having a cyclone foreign matter separation unit, characterized by including a cyclone unit coupled to the front end of one side of the cooling plate body and configured to form a swirling flow in the cooling water supplied from the outside to separate foreign matter contained in the cooling water, and then branch the cooling water with reduced foreign matter into two branches to supply to the first inlet and the second inlet, respectively. Claim 2 A cooling plate having a cyclone foreign matter separation unit, wherein, in claim 1, the cyclone unit comprises: a cooling water inlet through which cooling water is introduced from an external cooling water supply line; a main outlet through which cooling water with reduced foreign matter is discharged, and a foreign matter outlet through which some cooling water containing separated foreign matter or a relatively large amount of foreign matter is discharged; a cyclone chamber in which cooling water introduced through the cooling water inlet forms a swirling flow; a tangential inlet section in which cooling water introduced from the cooling water inlet is introduced tangentially along the inner surface of the cyclone chamber; and a main guide channel in which cooling water that has undergone swirling flow in the cyclone chamber is guided to the main outlet, and the cooling water discharged from the main outlet is branched into two branches and supplied to the first inlet and the second inlet, respectively. Claim 3 A cooling plate equipped with a cyclone foreign matter separation unit, wherein, in paragraph 2, the tangential inlet is positioned in the upper region of the cyclone chamber, and the inlet width of the tangential inlet is formed to be smaller than the representative width of the cyclone chamber, so that the flow velocity of the cooling water passing through the tangential inlet increases under the same flow rate conditions and the tangential momentum of the initial swirling flow within the cyclone chamber is enhanced. Claim 4 A cooling plate equipped with a cyclone foreign matter separation unit according to claim 2, wherein the cyclone chamber has a radius of curvature on the tangential inlet side formed by an upper inlet boundary on the tangential inlet side and a radius of curvature on the foreign matter discharge side formed by a lower flow boundary on the foreign matter discharge side, and the radius of curvature on the tangential inlet side is formed to be larger than the radius of curvature on the foreign matter discharge side, thereby reducing flow separation and preserving the tangential velocity component by having the main inlet path of the cooling water have a relatively gentler curvature than the foreign matter discharge path. Claim 5 A cooling plate having a cyclone foreign matter separation unit, wherein, in paragraph 2, the cyclone unit comprises: a housing body in which at least a portion of the cooling water inlet, the cyclone chamber, the tangential inlet, the main guide channel, the main outlet, and the foreign matter outlet is formed; and a channel cover coupled to cover the open channel of the housing body and forming an upper boundary of the main guide channel or a partial boundary of the cyclone chamber, wherein the channel cover comprises a plate-shaped cover base and a cover bulkhead protruding from the cover base to form a channel boundary. Claim 6 A cooling plate equipped with a cyclone foreign matter separation unit, wherein, in claim 1, the flow rate of the cooling water directly introduced by bypassing the microchannel area through the second inlet is set to be smaller than the flow rate of the cooling water introduced into the microchannel area through the first inlet, thereby ensuring heat exchange performance through the main flow of cooling water in the microchannel area, while compensating for pressure loss in the microchannel area or maintaining circulation of a portion of the cooling water through the bypass channel through the second inlet in the event of partial blockage in the microchannel area.

Images