Multi-channel liquid cooling radiator with distribution function
By introducing a distribution plate and transition section into the liquid-cooled radiator, the problems of uneven fluid distribution and high flow resistance are solved, achieving uniform fluid distribution and efficient heat exchange in multiple channels, and simplifying the structural design.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- XINCHANG JINGXIN PRECISION MACHINERY PARTS CO LTD
- Filing Date
- 2025-04-16
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional liquid-cooled radiators suffer from problems such as uneven fluid distribution, high flow resistance, complex structure, and low heat exchange efficiency.
A multi-channel liquid-cooled radiator with distribution is adopted. By setting a distribution plate and a transition section at the inlet of the medium channel, the fluid is uniformly distributed and mixed, reducing flow resistance and simplifying the structure.
It achieves uniform distribution of fluid in multiple channels, reduces flow resistance, and improves heat exchange efficiency and overall heat dissipation performance.
Smart Images
Figure CN224178468U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of liquid cooling technology, and in particular to a multi-channel liquid cooling radiator with distribution. Background Technology
[0002] Liquid cooling technology, as a highly efficient thermal management method, is widely used in electronic equipment, new energy batteries, high-power lasers, and other fields. Its core lies in rapidly transferring heat through a circulating cooling medium to ensure stable equipment operation. Traditional liquid coolers often employ single-channel or simple multi-channel structures, but these suffer from significant drawbacks in practical applications: uneven fluid distribution is a prominent issue. Due to structural design limitations, the cooling medium tends to exhibit uneven flow distribution when entering multiple channels, leading to excessively high flow velocities and increased pressure losses in some channels, while other channels suffer from insufficient flow to fully utilize their heat dissipation performance, thus limiting overall heat exchange efficiency. Furthermore, the complex structure and high flow resistance of traditional coolers further restrict improvements in their heat dissipation performance. To address these issues, there is an urgent need for a liquid cooler that can achieve uniform fluid distribution, reduce flow resistance, simplify the structure, and improve heat exchange efficiency. Existing technologies urgently require improvement to address these problems. Summary of the Invention
[0003] To address the aforementioned problems, the present invention aims to provide a multi-channel liquid-cooled radiator with distribution capabilities, which offers advantages such as uniform fluid distribution, reduced flow resistance, simplified structure, and improved heat exchange efficiency.
[0004] To achieve the above objectives, the present invention adopts the following technical solution:
[0005] This application provides a multi-channel liquid-cooled heat sink with distribution, the technical solution of which is as follows: It includes a housing with a medium inlet and a medium outlet formed on its side wall. At least two parallel medium channels are formed inside the housing, connecting the medium inlet and the medium outlet. An input connector is disposed on the medium inlet of the housing. An output connector is disposed on the medium outlet of the housing. A distribution cavity is formed within the input connector and / or the medium inlet. A distribution plate is disposed in the distribution cavity at the inlet of the at least two medium channels. Multiple distribution holes are evenly distributed on the distribution plate, and the positions of the distribution holes correspond one-to-one with the inlets of the at least two medium channels.
[0006] Furthermore, this application also proposes that the at least two media channels are arranged in parallel, and the distribution holes on the distribution plate are evenly distributed corresponding to the inlet positions of each media channel.
[0007] Furthermore, this application proposes that the medium channel includes an input section and an output section. A transition section is also provided inside the housing, and the input and output sections of the multiple medium channels are all connected to the transition section, allowing the fluid to mix in the transition section and then be distributed to each medium channel.
[0008] Furthermore, this application also proposes that the shell is a sealed structure, and its internal space is divided into multiple independent chambers, each chamber corresponding to a medium channel.
[0009] Furthermore, this application proposes that the input and output sections of the multiple media channels are arranged in parallel, and the transition section is constructed to connect the input and output sections of all media channels, with the transition section perpendicular to the extension direction of the input and output sections. Furthermore, this application also proposes that the inner ends of the input and output sections, where they connect to the transition section, are constructed with rounded corners to reduce fluid resistance.
[0010] Furthermore, this application also proposes that the diameter of the input connector gradually increases along the fluid flow direction, forming a gradually expanding structure.
[0011] Furthermore, this application also proposes that the outer contour of the distribution plate is adapted to the bottom shape of the medium inlet, and that the input connector presses the distribution plate together when it is fixed to the medium inlet.
[0012] Furthermore, this application also proposes that the cross-sectional area of the transition section is greater than or equal to the cross-sectional area of the input or output section of a single medium channel, in order to reduce fluid resistance.
[0013] Furthermore, this application also proposes that the diameter of the output connector gradually decreases along the fluid flow direction, forming a tapered structure.
[0014] As can be seen from the above, the multi-channel liquid-cooled radiator with distribution provided in this application achieves uniform distribution and mixing of fluid through the setting of distribution plate and transition section, reduces flow resistance, simplifies structure, and improves heat exchange efficiency. It has the advantages of uniform fluid distribution, reduced flow resistance, simplified structure, and improved heat exchange efficiency. Attached Figure Description
[0015] Figure 1 A schematic diagram of a multi-channel liquid-cooled heat sink provided in this application.
[0016] Figure 2 This is a schematic diagram of the end face of a multi-channel liquid-cooled heat sink provided in this application.
[0017] Figure 3 The diagram provided for this application is of the distribution plate. Detailed Implementation
[0018] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0019] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.
[0020] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more, unless otherwise expressly defined.
[0021] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection. They can refer to a mechanical connection or an electrical connection. They can refer to a direct connection or an indirect connection through an intermediate medium, or a connection within two components. For those skilled in the art, the specific meaning of the above terms in this utility model can be understood according to the specific circumstances.
[0022] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.
[0023] like Figure 1-3As shown, this embodiment proposes a multi-channel liquid-cooled radiator with distribution, including a housing 3, on which a medium inlet 1 and a medium outlet 6 are constructed. At least two parallel medium channels are constructed inside the housing 3, connecting the medium inlet 1 and the medium outlet 6. An input connector 8 is disposed on the medium inlet 1 of the housing 3. An output connector 9 is disposed on the medium outlet 6 of the housing 3. A distribution cavity is formed within the input connector 8 and / or the medium inlet 1. A distribution plate 2 is disposed at the inlet of at least two medium channels in the distribution cavity. Multiple distribution holes 7 are evenly distributed on the distribution plate 2, with the positions of the distribution holes 7 corresponding one-to-one with the inlets of the at least two medium channels. Further, the number and position of the distribution holes 7 can be adjusted according to the number and layout of the medium channels to ensure uniform distribution of fluid in each channel. As a preferred embodiment, the shape of the distribution holes 7 can be circular, elliptical, or other geometric shapes to optimize the fluid distribution effect. Furthermore, the material of the distribution plate 2 can be a corrosion-resistant, high-temperature-resistant metal or plastic to adapt to different working environments. This technical solution achieves uniform fluid distribution across multiple channels through parallel media channels within the housing 3 and uniformly distributed distribution holes 7 on the distribution plate 2, thus solving the problem of uneven fluid distribution in multi-channel liquid-cooled radiators. Compared with existing technologies, this solution not only simplifies the structure but also improves heat exchange efficiency, reduces flow resistance, and ensures stable equipment operation. Specifically, the introduction of the distribution plate 2 allows for uniform fluid distribution upon entering each media channel, avoiding excessively high flow velocities or insufficient flow in local channels, thereby improving overall heat dissipation performance.
[0024] Specifically, at least two media channels are arranged in parallel, and the distribution holes 7 on the distribution plate 2 are evenly distributed corresponding to the inlet positions of each media channel. The diameter and number of the distribution holes 7 can be adjusted according to the flow requirements of the media channels to ensure uniform cooling medium distribution at the inlet position of each channel. Specifically, the diameters of the distribution holes 7 can be designed to be the same or different to accommodate the flow requirements of different channels. The number of distribution holes 7 can be the same as the number of media channels, with one distribution hole 7 corresponding to each channel, further ensuring uniform fluid distribution. Through this design, the cooling medium can be evenly distributed to each channel, avoiding the problem of excessively high flow velocity or insufficient flow in local channels due to uneven flow distribution, thereby improving the overall heat exchange efficiency. Therefore, the technical solution of this application effectively solves the technical problem of uneven fluid distribution in multi-channel liquid-cooled radiators. Compared with the prior art, this application simplifies the structural design, reduces flow resistance, and improves heat dissipation performance through parallel media channels and evenly distributed distribution holes 7.
[0025] In a further embodiment, the media channels include an input section 41 and an output section 42. A transition section 5 is also provided inside the housing 3. The input sections 41 and output sections 42 of the multiple media channels are all connected to the transition section 5, allowing the fluid to mix in the transition section 5 and then be distributed to each media channel. The design of the transition section 5 allows the fluid to be fully mixed before entering the multiple media channels, thus ensuring a more uniform distribution of the fluid in each channel. Specifically, the function of the transition section 5 is to mix the fluid before entering the multiple media channels, thereby ensuring a more uniform distribution of the fluid in each channel. Through this design, the fluid is mixed in the transition section 5 and then distributed to each media channel, avoiding the problem of uneven fluid distribution in traditional designs and improving heat dissipation efficiency. The design of the transition section 5 also simplifies the structure, reduces fluid resistance, and further optimizes heat dissipation performance. Therefore, the technical solution of this application, by introducing the transition section 5, effectively solves the technical problem of uneven fluid distribution in multiple media channels. Compared with the prior art, this solution not only improves the uniform distribution of fluid but also simplifies the structural design and reduces fluid resistance, thereby significantly improving heat dissipation efficiency.
[0026] Figure 1 As shown, the input sections 41 and output sections 42 of multiple media channels are arranged in parallel. A transition section 5 is constructed to connect the input sections 41 and output sections 42 of all media channels, and the transition section 5 is perpendicular to the extension directions of the input sections 41 and output sections 42. The vertical arrangement of the transition section 5 allows the fluid to be evenly distributed to each media channel, further optimizing the fluid distribution effect. Therefore, this application achieves a smooth transition of fluid between the input sections 41 and output sections 42 and the transition section 5 by arranging the input sections 41 and output sections 42 of multiple media channels in parallel and constructing a transition section 5 perpendicular to the extension directions of the input sections 41 and output sections 42. This design reduces fluid resistance at the connection points and improves fluid flow efficiency, thereby solving the technical problem of increased fluid resistance. The vertical arrangement of the transition section 5 allows the fluid to be evenly distributed to each media channel, further optimizing the fluid distribution effect. Compared with the prior art, the technical solution of this application simplifies the structure while significantly improving the uniformity of fluid distribution and flow efficiency, solving the problems of uneven fluid distribution and increased flow resistance in traditional liquid-cooled radiators.
[0027] Furthermore, the inner ends of the input section 41 and the output section 42, where they connect to the transition section 5, are constructed with rounded corners to reduce fluid resistance. The radius of the rounded corners can be optimized based on specific application scenarios and fluid characteristics; for example, the radius can be determined based on the fluid viscosity, flow velocity, and channel dimensions. As a preferred embodiment, the rounded corners can be achieved through CNC machining or mold forming to ensure surface smoothness and dimensional accuracy. In addition, the design of the rounded corners can be further optimized in conjunction with fluid dynamics simulation analysis to achieve the best drag reduction effect. Specifically, by constructing rounded corners at the connections between the inner ends of the input section 41 and the output section 42 and the transition section 5, the resistance of the fluid flowing through these connections can be effectively reduced. This design, by smoothing the fluid flow path, avoids fluid turbulence and pressure loss caused by right-angle or acute-angle connections, thereby improving fluid flow efficiency and reducing the overall system energy consumption. Therefore, the technical solution of this application not only solves the resistance problem of the fluid at the connection between the input section 41 and the output section 42 and the transition section 5, but also improves the overall performance of the liquid cooler by optimizing the structural design.
[0028] Furthermore, the cross-sectional area of the transition section 5 is greater than or equal to the cross-sectional area of the input section 41 or output section 42 of a single medium channel to reduce fluid resistance. Specifically, the cross-sectional area of the transition section 5 can be achieved in various ways. For example, the cross-sectional shape of the transition section 5 can be rectangular, circular, or other polygonal, and the specific shape can be adjusted according to actual application requirements. In addition, the cross-sectional area of the transition section 5 can be increased by increasing the width or height of the transition section 5, or indirectly by adjusting the length of the transition section 5. As a preferred embodiment, the cross-sectional area of the transition section 5 can be further reduced by optimizing the structural design of the transition section 5 to make its connection with the input section 41 and output section 42 smoother. In this regard, this technical solution reduces the flow velocity of the fluid in the transition section 5 by increasing the cross-sectional area of the transition section 5, thereby reducing fluid resistance. This design helps the fluid mix and split more smoothly in the transition section 5, reduces pressure loss due to excessive flow velocity, and thus improves the overall heat exchange efficiency of the liquid-cooled radiator. Compared with existing technologies, this technical solution not only solves the problem of excessive fluid resistance in transition section 5, but also further improves the performance of liquid-cooled radiators by optimizing the structural design of transition section 5.
[0029] Furthermore, the housing 3 in this design is a sealed structure, with its internal space divided into multiple chambers, each corresponding to a media channel. By dividing the interior of housing 3 into multiple chambers, each corresponding to a media channel, fluid flow in each channel is ensured, and mutual interference between channels is avoided, thus achieving uniform fluid distribution. This design effectively solves the problem of uneven fluid distribution in traditional liquid-cooled radiators, improving overall heat dissipation efficiency. Specifically, the sealing structure of housing 3 can be achieved through welding, bolting, or integral molding, ensuring complete sealing of the internal space and preventing fluid leakage. The internal space can be divided by setting partitions or using mold molding. The material of the partitions can be the same metal as housing 3 to ensure structural strength and durability. The design of each chamber corresponding to a media channel can be achieved by opening an opening on the partition corresponding to the media channel. The size and shape of the opening can be optimized according to the fluid flow requirements to further reduce flow resistance.
[0030] like Figure 1 As shown, the diameter of the input connector 8 gradually increases along the fluid flow direction, forming a gradually expanding structure. The gradually expanding structure can be implemented in various ways, such as using a conical flare, a parabolic flare, or a stepped flare. Among these, the conical flare is the most common implementation, and its diameter change rate can be adjusted according to the specific application scenario to achieve the best flow resistance reduction effect. The parabolic flare can further optimize the fluid flow characteristics and reduce turbulence. The stepped flare is suitable for scenarios requiring phased reduction of flow resistance, gradually increasing the cross-sectional area of the fluid channel through multiple stages of gradual expansion. This technical solution effectively reduces the flow resistance of the fluid at the input connector 8 by gradually increasing the cross-sectional area of the fluid channel, thereby reducing pressure loss and improving fluid flow efficiency. The gradually expanding structure design allows the fluid to enter the medium channel more smoothly, avoiding fluid turbulence and energy loss caused by abrupt changes in the channel, further improving the overall performance of the liquid-cooled radiator. Compared with existing technologies, this solution not only simplifies the structural design but also significantly improves the uniformity of fluid distribution, providing an effective technical means for optimizing the performance of liquid-cooled radiators.
[0031] Furthermore, the outer contour of the distribution plate 2 is adapted to the bottom shape of the medium inlet 1, and the input connector 8 presses against the distribution plate 2 when fixed to the medium inlet 1. Specifically, the adaptation of the outer contour of the distribution plate 2 to the bottom shape of the medium inlet 1 can be achieved in various ways. For example, the outer contour of the distribution plate 2 can be designed to be exactly the same shape as the bottom of the medium inlet 1, ensuring that the two fit tightly during installation. In addition, the edges of the distribution plate 2 can be provided with elastic material, such as rubber or silicone, to enhance its sealing with the bottom of the medium inlet 1. The pressing against the distribution plate 2 when the input connector 8 is fixed to the medium inlet 1 can be achieved by means of threaded connection, snap-fit connection, or welding. In the case of threaded connection, the input connector 8 can be designed with an external thread structure that mates with the internal thread of the medium inlet 1, pressing against the distribution plate 2 when tightened. In the case of snap-fit connection, the input connector 8 can be designed with a snap-fit structure that mates with the slot of the medium inlet 1, pressing against the distribution plate 2 through the elastic deformation of the snap-fit during installation. During welding, the input connector 8 and the medium inlet 1 can be fixed together by welding. The pressure applied during welding ensures that the distribution plate 2 is pressed tightly. In this design, the outer contour of the distribution plate 2 matches the bottom shape of the medium inlet 1, ensuring that the distribution plate 2 fits tightly against the bottom of the medium inlet 1, preventing leakage or uneven distribution of fluid during the distribution process. The input connector 8, when fixed to the medium inlet 1, presses down the distribution plate 2, simplifying the installation structure and facilitating installation. This further ensures that the distribution plate 2 is fixed in the medium inlet 1, preventing displacement or loosening under fluid pressure, thereby ensuring that fluid can evenly enter each medium channel through the distribution hole 7, achieving uniform fluid distribution and reducing flow resistance. Compared with existing technologies, this application effectively solves the problems of uneven fluid distribution and increased flow resistance by optimizing the compatibility between the distribution plate 2 and the medium inlet 1 and the fixing method of the input connector 8, thus improving the overall performance of the liquid-cooled radiator.
[0032] Furthermore, the diameter of the output connector 9 gradually decreases along the fluid flow direction, forming a tapered structure. This tapered structure can be achieved in various ways, such as using a conical design, a stepped reduction design, or a curved reduction design. Among these, the conical design is the most common implementation, with its diameter decreasing linearly from the inlet to the outlet, effectively reducing the flow resistance of the fluid at the output connector 9. The stepped reduction design achieves the tapering effect through multiple stepped diameter changes, suitable for scenarios requiring segmented control of fluid flow rate. The curved reduction design uses a smooth curved transition to further optimize the continuity of fluid flow, reducing turbulence and pressure loss. This technical solution reduces the flow resistance of the fluid at the output connector 9 by gradually reducing its diameter, thereby optimizing fluid flow efficiency, reducing pressure loss, and improving the overall performance of the radiator. Compared with existing technologies, this design effectively solves the problem of increased fluid flow resistance caused by changes in the diameter of the output connector 9, while simplifying the structural design and improving the reliability and service life of the radiator. Specifically, the tapered structure design allows the fluid to flow more smoothly through the output connector 9, avoiding turbulence and energy loss caused by abrupt changes in diameter, thereby significantly improving the heat exchange efficiency of the radiator.
[0033] In summary, the advantages of this scheme are:
[0034] 1. The distribution plate improves fluid distribution and enhances heat exchange performance.
[0035] 2. Multiple channels in parallel increase heat exchange area and reduce fluid resistance.
[0036] 3. Simple structure and low cost.
[0037] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0038] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention without departing from the principles and spirit of the present invention.
Claims
1. A multi-channel liquid-cooled heat sink with distribution, characterized in that, include: The housing (3) has a medium inlet (1) and a medium outlet (6) constructed on its side wall. At least two parallel medium channels are constructed inside the housing (3), and the medium channels connect the medium inlet (1) and the medium outlet (6). An input connector (8) is provided on the medium inlet (1) of the housing (3); an output connector (9) is provided on the medium outlet (6) of the housing (3); A distribution cavity is formed in the input connector (8) and / or the medium inlet (1). A distribution plate (2) is provided at the inlet of the at least two medium channels in the distribution cavity. A plurality of distribution holes (7) are evenly distributed on the distribution plate (2). The positions of the distribution holes (7) correspond one-to-one with the inlets of the at least two medium channels.
2. The multi-channel liquid-cooled heat sink with distribution as described in claim 1, characterized in that, The at least two media channels are arranged in parallel, and the distribution holes (7) on the distribution plate (2) are evenly distributed corresponding to the inlet positions of each media channel.
3. The multi-channel liquid-cooled heat sink with distribution as described in claim 1, characterized in that, The medium channel includes an input section (41) and an output section (42); the housing (3) is also provided with a transition section (5), and the input and output sections of the multiple medium channels are all connected to the transition section (5), so that the fluid is mixed in the transition section (5) and then distributed to each medium channel.
4. The multi-channel liquid-cooled heat sink with distribution as described in claim 1, characterized in that, The shell (3) is a sealed structure, and its internal space is divided into multiple chambers, each chamber corresponding to a medium channel.
5. The multi-channel liquid-cooled heat sink with distribution as described in claim 3, characterized in that, The input segment (41) and output segment (42) of the multiple media channels are arranged in parallel. The transition segment (5) is constructed to connect the input segment and output segment of all media channels, and the transition segment (5) is perpendicular to the extension direction of the input segment and the output segment.
6. The multi-channel liquid-cooled heat sink with distribution as described in claim 3, characterized in that, The inner ends of the input and output segments are constructed with rounded corners where they connect to the transition segment (5) to reduce fluid resistance.
7. The multi-channel liquid-cooled heat sink with distribution as described in claim 1, characterized in that, The diameter of the input connector (8) gradually increases along the fluid flow direction, forming a gradually expanding structure.
8. The multi-channel liquid-cooled heat sink with distribution as described in claim 1, characterized in that, The outer contour of the distribution plate (2) is adapted to the bottom shape of the medium inlet (1), and the input connector (8) presses the distribution plate (2) when it is fixed to the medium inlet (1).
9. The multi-channel liquid-cooled heat sink with distribution as described in claim 3, characterized in that, The cross-sectional area of the transition section (5) is greater than or equal to the cross-sectional area of the input or output section of a single medium channel to reduce fluid resistance.
10. The multi-channel liquid-cooled heat sink with distribution as described in claim 1, characterized in that, The diameter of the output connector (9) gradually decreases along the fluid flow direction, forming a tapered structure.