WO2025058496A1 - 히트싱크 어셈블리 - Google Patents
히트싱크 어셈블리 Download PDFInfo
- Publication number
- WO2025058496A1 WO2025058496A1 PCT/KR2024/096129 KR2024096129W WO2025058496A1 WO 2025058496 A1 WO2025058496 A1 WO 2025058496A1 KR 2024096129 W KR2024096129 W KR 2024096129W WO 2025058496 A1 WO2025058496 A1 WO 2025058496A1
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- WO
- WIPO (PCT)
- Prior art keywords
- outlet
- heat sink
- path
- inlet
- end plug
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F1/00—Tubular elements; Assemblies of tubular elements
- F28F1/02—Tubular elements of cross-section which is non-circular
- F28F1/022—Tubular elements of cross-section which is non-circular with multiple channels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
- F28F9/02—Header boxes; End plates
- F28F9/026—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits
- F28F9/0265—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box
- F28F9/0268—Header boxes; End plates with static flow control means, e.g. with means for uniformly distributing heat exchange media into conduits by using guiding means or impingement means inside the header box in the form of multiple deflectors for channeling the heat exchange medium
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/617—Types of temperature control for achieving uniformity or desired distribution of temperature
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6554—Rods or plates
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
- H01M10/6556—Solid parts with flow channel passages or pipes for heat exchange
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/03—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with plate-like or laminated conduits
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D21/00—Heat-exchange apparatus not covered by any of the groups F28D1/00 - F28D20/00
- F28D2021/0019—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for
- F28D2021/0028—Other heat exchangers for particular applications; Heat exchange systems not otherwise provided for for cooling heat generating elements, e.g. for cooling electronic components or electric devices
- F28D2021/0029—Heat sinks
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
- F28F2255/14—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes molded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
- F28F2255/00—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes
- F28F2255/16—Heat exchanger elements made of materials having special features or resulting from particular manufacturing processes extruded
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Definitions
- the present invention relates to a heat sink assembly that forms the bottom surface of a battery pack having a plurality of secondary batteries installed thereon, or is mounted on the bottom surface to promote heat dissipation of the battery pack.
- Secondary batteries unlike primary batteries, are rechargeable and have the potential to be miniaturized and large-capacity, so they have been researched and developed extensively recently. With the increasing technological development and demand for mobile devices, and the emergence of electric vehicles and energy storage systems in response to the era’s demands for environmental protection, the demand for secondary batteries as an energy source is increasing even more rapidly.
- Secondary batteries are classified into coin-shaped batteries, cylindrical batteries, square batteries, and pouch-shaped batteries according to the shape of the battery case.
- the electrode assembly mounted inside the battery case is a power generation element capable of charging and discharging, which is composed of a laminated structure of electrodes and separators.
- a heat sink also called a cooling plate
- the heat sink is mounted on the bottom of a battery pack containing a plurality of secondary batteries, for example, a plurality of secondary batteries, and performs a cooling function by absorbing the heat generated inside the pack with a coolant and dissipating it to the outside.
- Heat sinks can be divided into brazing heat sinks and extrusion heat sinks depending on their structure and manufacturing method.
- Brazing heat sinks are structures that form a flow path by brazing two plates, and although they have a high degree of freedom in flow path design, they have the disadvantage of being disadvantageous in structural rigidity due to the deterioration of the material properties.
- extruded heat sinks which are manufactured as a continuum through extrusion molding, are advantageous in structural rigidity, but only allow for straight flow paths, so there are many ports, and as a result, pipes for connection take up space.
- the purpose of the present invention is to provide a heat sink assembly that can improve differential pressure by reducing the number of parts with a simplified flow path configuration and taking up less space because a separate pipe for flow path formation is not required.
- another purpose of the present invention is to provide a heat sink assembly capable of absorbing heat evenly over the entire area by uniformly inducing the flow rate of refrigerant flowing through a plurality of paths.
- the present invention relates to a heat sink assembly, and in one example, includes a heat sink in which a plurality of ribs are integrally formed along an internal longitudinal direction, first and second surfaces at both ends of the longitudinal direction are open, and first and second end plugs which close the first and second surfaces at both ends of the heat sink, respectively, and the heat sink has a cooling path through which refrigerant introduced from the first end plug side flows along an inlet path, changes direction along a return path from the second end plug side, is introduced into an outlet path, and then flows toward the first end plug side, and the second end plug has a flow guide on a return path that is converted from the inlet path to the outlet path.
- the first end plug may be provided with an inlet port through which the refrigerant flows in and an outlet port through which the refrigerant flows out.
- the inlet path connected to the inlet port is arranged in the central area of the heat sink, the outlet ports are provided in a pair, and the outlet path connected to the outlet port can be arranged on both sides of the inlet path.
- the first end plug may include an inlet plug that closes the first side of the inlet passage and a pair of outlet plugs that close the first side of the outlet passage.
- the fluid guide may have a shape of a protrusion protruding from the surface of the second end plug.
- the flow guide may be arranged to face the first outlet flow path that is closest to the inlet flow path among the paths that transition from the inlet flow path to the return flow path.
- the flow guide may have an inclined surface that guides the refrigerant, which has changed direction from the inlet path to the return path, toward the first outlet path.
- the inclined surface of the flow guide can be arranged between the inlet and the center point along the width direction of the first outlet flow path.
- the peak of the inclined surface of the above flow guide may be located at the center point in the width direction of the first outlet flow path.
- the space between the second end plug surface and the inlet of each outlet path may become wider.
- the distance between the end portion of the rib forming each outlet mile and the surface of the second end plug may linearly increase from the first outlet mile to the outlet mile that is gradually spaced apart from the inlet mile.
- the heat sink assembly of the present invention having the above configuration can easily form a cooling path divided into an inlet and an outlet by performing machining on both longitudinal ends of a path integrally formed in the heat sink and by having an end plug close the open surface.
- the heat sink assembly of the present invention can also secure excellent structural rigidity by manufacturing the heat sink as a continuum through extrusion molding.
- the heat sink assembly of the present invention has a flow guide on a return path where the refrigerant flow is abruptly switched, thereby making the flow rate of the refrigerant introduced into each of the plurality of outlet paths more uniform.
- FIG. 1 is a drawing illustrating a heat sink assembly according to one embodiment of the present invention.
- Figure 2 is an exploded perspective view of the heat sink assembly of Figure 1.
- FIG. 3 is a drawing showing the structure of the heat sink in detail.
- Figure 4 is an enlarged drawing of portion “A” of Figure 1.
- FIG. 5 is an enlarged drawing of portion “B” of Figure 1.
- Figure 6 is a drawing illustrating the overall refrigerant flow in the heat sink assembly of Figure 1.
- FIG. 7 is a drawing illustrating a return path according to one embodiment of the present invention.
- the present invention relates to a heat sink assembly, and in one example, includes a heat sink in which a plurality of ribs are integrally formed along an internal longitudinal direction, first and second surfaces at both ends of the longitudinal direction are open, and first and second end plugs which close the first and second surfaces at both ends of the heat sink, respectively, and the heat sink has a cooling path through which refrigerant introduced from the first end plug side flows along an inlet path, changes direction along a return path from the second end plug side, is introduced into an outlet path, and then flows toward the first end plug side, and the second end plug has a flow guide on a return path that is converted from the inlet path to the outlet path.
- the heat sink assembly of the present invention having the above configuration can easily form a cooling path divided into an inlet and an outlet by performing machining on both longitudinal ends of a path integrally formed in the heat sink and by having an end plug close the open surface.
- the heat sink assembly of the present invention can also secure excellent structural rigidity by manufacturing the heat sink as a continuum through extrusion molding.
- the heat sink assembly of the present invention has a flow guide on a return path where the refrigerant flow is abruptly switched, thereby making the flow rate of the refrigerant introduced into each of the plurality of outlet paths more uniform.
- FIG. 1 is a drawing illustrating a heat sink assembly (10) according to one embodiment of the present invention
- FIG. 2 is an exploded perspective view of the heat sink assembly (10) of FIG. 1
- FIG. 3 is a drawing illustrating in detail the structure of the heat sink (100), particularly the structure of the internal flow path (140).
- the heat sink assembly (10) of the present invention includes a heat sink (100) having a pair of open surfaces facing each other, and first and second end plugs (200).
- the open surfaces of the heat sink (100) are surfaces located at both ends in the longitudinal direction (L), and for convenience of explanation, the two open surfaces are referred to as a first surface (120) and a second surface (130), respectively.
- the longitudinal direction (L) refers to a direction in which a plurality of flow paths (140), which are hollow portions, extend
- the width direction (W) refers to a direction orthogonal to the longitudinal direction (L) on a plane in which the plurality of flow paths (140) are spaced apart from each other.
- a plurality of channels (140) through which refrigerant flows are hollow portions formed along the longitudinal direction (L), and the channels (140) are isolated by ribs (110).
- the first surface (120) and the second surface (130) of both ends of the longitudinal direction (L) of the heat sink (100) are open.
- the heat sink (100) can be manufactured as an extrusion molded product in which a plurality of channels (140) are integrally molded along the internal longitudinal direction (L) through extrusion molding.
- FIGS. 1 and 2 illustrate a heat sink (100) manufactured by extrusion molding as one embodiment.
- the first and second end plugs (200) close the open first surface (120) and second surface (130) at both ends of the heat sink (100), respectively, and also organically connect a plurality of paths (140) separated from each other inside the heat sink (100) to form an inlet/outlet path for refrigerant.
- the inlet/outlet path for refrigerant formed by the first and second end plugs (200) will be described in detail with reference to FIGS. 3 to 7.
- the illustrated embodiment presents as an example a heat sink (100) having a structure in which both ends in the longitudinal direction (L) are open due to the nature of an extruded product.
- a heat sink (100) not manufactured by extrusion molding if it is a heat sink (100) having a structure in which both ends in the longitudinal direction (L) form open surfaces through which a plurality of flow paths (140) extend, it will be possible to configure a heat sink assembly (10) of the present invention in the same manner as combining the first and second end plugs (200).
- Fig. 3 illustrates the structure of the flow path (140) inside the heat sink (100) in more detail.
- a plurality of flow paths (140) extending in the longitudinal direction (L) between the first surface (120) and the second surface (130) have their ends spaced apart from the first surface (120) and the second surface (130) by a predetermined distance.
- the distance at which the flow paths (140) are spaced apart from the first surface (120) and the second surface (130) can be freely designed by a cutting process that mechanically removes a rib (110) that divides the flow paths (140), which are hollow parts.
- a space (depth) into which the end plug (200) is inserted is secured by a cutting process that removes a part of the end of the rib (110).
- the first and second end plugs (200) close the open first surface (120) and second surface (130) at both ends of the heat sink (100), respectively.
- the end plugs (200) have a thickness and width suitable for insertion onto the first surface (120) and second surface (130) of the heat sink (100).
- the end plugs (200) inserted into the heat sink (100) can be sealed and joined by welding, for example, friction stir welding.
- welding for example, friction stir welding.
- welding surfaces are formed in the upper, lower, left, and right directions of the end plugs (200), thereby completing the sealing of the heat sink (100) by the end plugs (200).
- the refrigerant can be configured to flow over the entire heat transfer area of the heat sink assembly (10) by appropriately selecting the positions of the ports through which the refrigerant flows in and out.
- the inlet port (213) through which the refrigerant flows in and the outlet port (215) through which the refrigerant flows out are arranged together on the first surface (120), and the second end plug (220) is arranged on the second surface (130) to form a return flow path (146) of the refrigerant without a separate port.
- FIG. 4 is an enlarged view of part “A” of FIG. 1, and when examined together with FIG. 3, the inlet path (142) connected to the inlet port (213) is arranged in the central area of the heat sink (100), and the outlet paths (144) connected to the outlet ports (215) provided in a pair are arranged on both sides of the inlet path (142).
- two inlet paths (142) are provided, and the ends of the inlet paths (142) are connected to return paths (146) formed long along the second surface (130), and the long return paths (146) are connected to the outlet paths (144) on both sides.
- the first end plug (210) for closing the first side (120) includes an inlet plug (211) for closing the first side (120) of the inlet passage (142), and a pair of outlet plugs (212) for closing the first side (120) of the outlet passage (144).
- a certain space is formed between the inlet plug (211) and the inlet of the inlet passage (142), and an inlet port (213) is arranged on this space. Accordingly, the refrigerant flowing into the inlet port (213) fills the space on the upstream side of the inlet passage (142) and then branches out and flows evenly to each inlet passage (142).
- an outlet port (215) is arranged on the space formed between the outlet plug (212) and the outlet of the outlet passage (144).
- FIG. 5 is an enlarged view of portion “B” of FIG. 1, showing a return path (146).
- the second side (130) of the heat sink (100) is closed by a second end plug (220), and the ends of each path (142, 144), that is, the outlet of the inlet path (142) and the inlet of the outlet path (144) facing the second side (130), are also spaced apart from the second end plug (220) by a predetermined distance, and the space formed along the second end plug (220) thus forms the return path (146).
- the return path (146) is shown as having a constant distance from the second side (130), that is, no substantial change in cross-sectional area.
- the second end plug (220) has a flow guide (230) on the return path (146) that switches from the inlet path (142) to the outlet path (144).
- the flow guide (230) has a shape of a protrusion protruding from the surface of the second end plug (220). The role of this flow guide (230) is to sufficiently secure the flow rate of the refrigerant introduced into the outlet path (144) closest to the inlet path (142), i.e., the first outlet path (144-1).
- the refrigerant coming out of the outlet of the inlet path (142) is rapidly diverted to the return paths (146) on both sides after colliding with the second end plug (220).
- the refrigerant diverted to the return path (146) is sequentially introduced into the inlets of each of the outlet paths (144) arranged sequentially, starting from the first outlet path (144-1). Ideally, it is most desirable that the flow rate of the refrigerant introduced into each outlet path (144) is uniform, but in reality, it is not uniform.
- the problem is that the flow rate of the refrigerant introduced into the first outlet channel (144-1) closest to the inlet channel (142) significantly drops.
- the refrigerant flow around the first outlet channel (144-1) is most unstable because it is immediately after the refrigerant flow is switched by nearly 90° by hitting the second end plug (220). Due to this unstable flow pattern, a sufficient amount of refrigerant tends not to be introduced into the first outlet channel (144-1). In more severe cases, a backflow phenomenon of the refrigerant may occur in the first outlet channel (144-1) due to a pressure drop caused by strong turbulent flow.
- the flow guide (230) provided in the second end plug (220) is provided to solve the problem of flow distribution, and particularly serves to promote the flow of refrigerant toward the first outlet path (144-1) where the flow rate is the least sufficient and unstable.
- the flow guide (230) is arranged to face the first outlet path (144-1) that is closest to the inlet path (142) among the paths that change from the inlet path (142) to the return path (146).
- the flow guide (230) arranged to face the entrance of the first outlet path (144-1) some of the refrigerant that has changed direction toward the return path (146) is forced to flow toward the first outlet path (144-1) after hitting the flow guide (230).
- the flow guide (230) may be provided with an inclined surface (232) that guides the refrigerant, which has changed direction from the inlet path (142) to the return path (146), to flow toward the first outlet path (144-1).
- the inclined surface (232) of the flow guide (230) may be arranged between the beginning and the center point along the width direction (W) of the first outlet path (144-1). For example, as illustrated in the partially enlarged view of FIG.
- the apex (234) of the inclined surface (232) of the flow guide (230) may be located at the center point in the width direction (W) of the first outlet path (144-1).
- FIG. 6 is a drawing illustrating the overall refrigerant flow in the heat sink assembly (10) of FIG. 1.
- the inlet path (142) connected to the inlet port (213) is arranged in the central region of the heat sink (100), and the outlet paths (144) connected to the outlet ports (215) provided in a pair are arranged on both sides of the inlet path (142).
- the second end plug (220) forms a return path (146).
- the refrigerant introduced into the inlet port (213) on the side of the first end plug (210) flows along the central inlet flow path (142) and then changes direction along the return flow path (146) on the side of the second end plug (220).
- the refrigerant whose direction has been changed flows along the return flow path (146) and is sequentially introduced into the outlet flow path (144), and the refrigerant flowing along the outlet flow path (144) is discharged outside through the outlet port (215) on the side of the first end plug (210).
- the present invention was described focusing on the configuration of the second end plug (220) for securing the flow rate for the first outlet path (144-1) in which a reverse flow phenomenon of the refrigerant may occur on the return path (146).
- an additional configuration capable of inducing the flow rate of the refrigerant introduced into each outlet path (144) more evenly is described.
- the refrigerant flowing through the return path (146) is sequentially distributed into a plurality of consecutive outlet paths (144) starting from the first outlet path (144-1). Since the flow rate of the refrigerant flowing out from the outlet of the inlet path (142) is almost constant, the refrigerant flow is not smooth in the first outlet path (144-1) due to the flow characteristics, but since the refrigerant is generally distributed first toward the outlet path (144) adjacent to the inlet path (142), the refrigerant flow rate tends to decrease gradually as it goes downstream of the return path (146).
- the second embodiment relates to a configuration for resolving or alleviating such uneven distribution of the flow rate.
- FIG. 7 is a drawing illustrating a return path (146) according to the second embodiment.
- the space between the surface of the second end plug (220) and the inlet of each outlet path (144) is configured to become wider as it goes from the first outlet path (144-1) to the outlet path (144) that is gradually spaced apart from the inlet path (142).
- the space between the surface of the second end plug (220) and the inlet of each outlet path (144) is determined by the length of the rib (110) on the second surface (130) that forms the inlet of the outlet path (144). That is, the configuration of FIG. 7 can be implemented by controlling the cutting depth of the end of the rib (110) of the outlet path (144) that is mechanically processed through the second surface (130).
- the distance between the end of the rib (110) forming each outlet channel (144) and the surface of the second end plug (220) is configured to linearly increase as it goes from the first outlet channel (144-1) to the outer outlet channel (144).
- the space between the surface of the second end plug (220) and the inlet of each outlet channel (144) linearly expands as it gets farther away from the inlet channel (142).
- the flow rate for the first outlet path (144-1) is secured by the flow guide (230) of the second end plug (220), and by implementing differential flow rate distribution in consideration of the distance from the outlet of the inlet path (142), the flow rate distributed to the entire outlet path (144) becomes more uniform, and through this, the cooling performance of the heat sink assembly (10) can also be evenly displayed over the entire area.
- Heatsink assembly 100 Heatsink
- End plug 210 1st end plug
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Abstract
Description
Claims (11)
- 내부 길이방향을 따라 복수의 리브가 일체 성형되고, 길이방향 양단의 제1 면 및 제2 면이 개방된 히트싱크; 및상기 히트싱크 양단의 제1 및 제2 면을 각각 폐쇄하는 제1 및 제2 엔드 플러그;를 포함하고,상기 히트싱크는,상기 제1 엔드 플러그 측에서 유입된 냉매가 인렛 유로를 따라 흐르다가 상기 제2 엔드 플러그 측에서 리턴 유로를 따라 방향을 전환하여 아웃렛 유로로 도입된 후 상기 제1 엔드 플러그 측으로 유동하는 냉각유로를 구비하고,상기 제2 엔드 플러그는,상기 인렛 유로에서 아웃렛 유로로 전환되는 리턴 유로 상에 유동 가이드를 구비하는, 히트싱크 어셈블리.
- 제1항에 있어서,상기 제1 엔드 플러그에는,상기 냉매가 유입되는 인렛 포트와, 상기 냉매가 유출되는 아웃렛 포트가 배치되는, 히트싱크 어셈블리.
- 제2항에 있어서,상기 인렛 포트와 연결되는 인렛 유로는 상기 히트싱크의 중앙영역에 배치되고,상기 아웃렛 포트는 한 쌍으로 구비되고, 상기 아웃렛 포트와 연결되는 아웃렛 유로는 상기 인렛 유로의 양측으로 배치되는, 히트싱크 어셈블리.
- 제3항에 있어서,상기 제1 엔드 플러그는,상기 인렛 유로의 상기 제1 면을 폐쇄하는 인렛 플러그와,상기 아웃렛 유로의 상기 제1 면을 폐쇄하는 한 쌍의 아웃렛 플러그를 포함하는, 히트싱크 어셈블리.
- 제1항에 있어서,상기 유동 가이드는,상기 제2 엔드 플러그 표면에서 돌출된 돌기의 형태를 이루는, 히트싱크 어셈블리.
- 제5항에 있어서,상기 유동 가이드는,상기 인렛 유로에서 상기 리턴 유로로 전환되는 경로 중에서, 상기 인렛 유로에 가장 인접한 제1 아웃렛 유로에 대해 대면 배치되는, 히트싱크 어셈블리.
- 제6항에 있어서,상기 유동 가이드는,상기 인렛 유로에서 상기 리턴 유로로 방향을 전환한 냉매가 상기 제1 아웃렛 유로를 향하도록 유도하는 경사면을 구비하는, 히트싱크 어셈블리.
- 제4항에 있어서,상기 유동 가이드의 경사면은,상기 제1 아웃렛 유로의 폭 방향을 따라 초입부터 중앙 지점 사이에 배치된, 히트싱크 어셈블리.
- 제8항에 있어서,상기 유동 가이드의 경사면의 정점이,상기 제1 아웃렛 유로의 폭 방향 중앙 지점에 위치한, 히트싱크 어셈블리.
- 제6항에 있어서,상기 제1 아웃렛 유로에서부터 상기 인렛 유로에서 점차로 이격되는 아웃렛 유로로 갈수록, 상기 제2 엔드 플러그 표면과 각 아웃렛 유로의 입구 사이의 공간이 넓어지는, 히트싱크 어셈블리.
- 제10항에 있어서,상기 제1 아웃렛 유로에서부터 상기 인렛 유로에서 점차로 이격되는 아웃렛 유로로 갈수록, 상기 각 아웃렛 유로를 형성하는 리브의 단부와 상기 제2 엔드 플러그 표면 사이의 거리가 선형적으로 증가하는, 히트싱크 어셈블리.
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- 2024-09-10 JP JP2025526353A patent/JP2025536020A/ja active Pending
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Also Published As
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| EP4601083A1 (en) | 2025-08-13 |
| CN120153521A (zh) | 2025-06-13 |
| EP4601083A4 (en) | 2026-01-21 |
| KR20250038013A (ko) | 2025-03-19 |
| JP2025536020A (ja) | 2025-10-30 |
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