Liquid cooling radiator

By designing multiple flow chambers and flow-guiding protrusions in the liquid-cooled radiator, the fluid residence time is extended and the fluid flow path is optimized, thus solving the problem of low heat dissipation efficiency caused by short fluid residence time and achieving more efficient heat transfer and heat dissipation.

CN223626196UActive Publication Date: 2025-12-02DONGGUAN HONGHUI ELECTRONIC TECH CO LTD
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Patent Information

Application Number
CN202423150790.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-19
Publication Date
2025-12-02
Estimated Expiration
2034-12-19

AI Technical Summary

Technical Problem

The short residence time of fluid in existing liquid-cooled radiators results in low heat dissipation efficiency, as the fluid fails to fully absorb heat.

Method used

Multiple flow chamber structures were designed, including a first flow chamber, a second flow chamber, and a third flow chamber. The fluid flow path was optimized by heat sink and flow guide protrusions to extend the residence time of the fluid inside the heat sink. The flow direction and speed of the fluid were adjusted by flow divider to increase the heat exchange area.

Benefits of technology

It improves heat dissipation efficiency, allowing the fluid to exchange heat more fully with the radiator surface, reducing the operating temperature of the heat source, and enhancing the mechanical strength and stability of the radiator.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a liquid cooling radiator. The liquid cooling radiator comprises a radiator housing and a boss arranged on the radiator housing. A first flowing cavity and a second flowing cavity are formed in the radiator shell; a plurality of heat dissipation plates are arranged on the inner side wall of the heat dissipation shell, one end of each heat dissipation plate is connected with the inner side wall of the heat dissipation shell, and the other end of each heat dissipation plate is connected with the outer wall of the second flowing cavity; a third flowing cavity is formed in the boss, one end of the third flowing cavity is communicated with the first flowing cavity, and the other end of the third flowing cavity is communicated with the second flowing cavity. According to the utility model, the plurality of flowing cavities are arranged, so that the retention time of fluid in the radiator is prolonged, the fluid can exchange heat with the surface of the radiator more sufficiently, and the radiating efficiency can be improved.
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Description

Technical Field

[0001] This utility model relates to the field of radiators, and more particularly to a liquid-cooled radiator. Background Technology

[0002] A liquid-cooled radiator is a device that uses coolant to circulate and dissipate heat. The fluid is forced to circulate under the drive of a pump to remove heat from the radiator and achieve a cooling effect.

[0003] Currently, the fluid in liquid cooling radiators on the market stays in the radiator for a short time. The fluid enters the liquid cooling radiator and flows out along the path, which means that the fluid does not have enough time to absorb heat, resulting in low heat dissipation efficiency of the radiator. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the prior art. This invention provides a liquid-cooled radiator that, by setting multiple flow chambers, extends the residence time of the fluid inside the radiator, enabling more thorough heat exchange with the radiator surface and thus improving heat dissipation efficiency.

[0005] Accordingly, this utility model proposes a liquid-cooled radiator, which includes: a radiator housing and a boss disposed on the radiator housing;

[0006] Furthermore, the radiator housing has a first flow cavity and a second flow cavity inside;

[0007] The second flow cavity extends to form multiple heat dissipation plates on the side near the inner wall of the radiator housing, and the second flow cavity is connected to the inner wall of the radiator housing based on the multiple heat dissipation plates.

[0008] The boss has a third flow cavity, one end of which is connected to the first flow cavity, and the other end of which is connected to the second flow cavity.

[0009] Preferably, a flow divider is provided in the first flow cavity, which divides the middle region of the second flow cavity into a first flow channel and a second flow channel.

[0010] Preferably, the radiator housing is provided with a plurality of connecting plates, which are located in the flow divider plate;

[0011] One end of any of the connecting plates is fixedly connected to the side wall of the diverter plate near the first flow channel, and the other end of the connecting plate is fixedly connected to the side wall of the diverter plate near the second flow channel.

[0012] Preferably, the geometric center of the radiator housing is recessed inward to form a groove, and a snap-fit ​​frustum is provided in the groove.

[0013] Preferably, a plurality of fixing holes are provided at the root of the groove, and the plurality of fixing holes are arranged in an array with the center of the groove as a reference.

[0014] Preferably, the radiator housing is provided with a water inlet and a water outlet, the water inlet is embedded with a water inlet pipe, and the water inlet is connected to the first flow cavity based on the water inlet pipe;

[0015] The outlet has an embedded water outlet pipe, and the outlet is connected to the second flow chamber through the water outlet pipe.

[0016] Preferably, the water outlet pipe is provided with a first locking groove, and the water inlet pipe is provided with a second locking groove.

[0017] Preferably, the third flow cavity is provided with a plurality of flow-guiding protrusions, which are distributed in a preset position on the sidewall of the third flow cavity.

[0018] Preferably, each of the drainage protrusions has a slope facing the side opposite to the direction of water flow.

[0019] Preferably, the radiator housing and the boss are integrally formed.

[0020] The beneficial effects of this utility model are:

[0021] This invention, by setting up multiple heat dissipation plates, allows heat in the second flow chamber to be transferred more quickly to the radiator shell, accelerating heat exchange with the external environment and thus improving the heat dissipation efficiency of the liquid-cooled radiator. The invention also features a first, second, and third flow chamber, which are interconnected, extending the fluid's residence time inside the radiator and enabling more thorough heat exchange with the radiator surface. This transfers more heat from the heat source to the radiator, which then dissipates it into the air, improving heat dissipation efficiency and reducing the operating temperature of the heat source. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 This is a schematic diagram of the liquid-cooled radiator in this utility model;

[0024] Figure 2 This is a first cross-sectional view of the liquid-cooled radiator in this utility model;

[0025] Figure 3 This is a second cross-sectional view of the liquid-cooled radiator in this utility model;

[0026] Figure 4 This is a schematic diagram of one-third of the liquid-cooled radiator in this utility model.

[0027] In the attached diagram, 1 is the radiator housing; 11 is the first flow chamber; 12 is the second flow chamber; 121 is the flow divider plate; 122 is the first flow channel; 123 is the second flow channel; 13 is the heat dissipation plate; 14 is the groove; 141 is the fixing hole; 15 is the snap-fit ​​frustum; 16 is the water inlet; 161 is the water inlet pipe; 17 is the water outlet; 171 is the water outlet pipe; 18 is the connecting plate; 2 is the boss; 21 is the third flow chamber; and 211 is the flow guide boss. Detailed Implementation

[0028] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0029] Figure 1 A schematic diagram of the liquid-cooled radiator in this invention is shown. Figure 2 A first cross-sectional view of the liquid-cooled radiator of this invention is shown. Figure 3 A second cross-sectional view of the liquid-cooled radiator of this invention is shown. Figure 4A third-third cross-sectional view of the liquid-cooled radiator of this invention is shown. The liquid-cooled radiator includes: a radiator housing 1 and a boss 2 disposed on the radiator housing 1. The radiator housing is a hollow shell, and the radiator housing 1 has a first flow cavity 11 and a second flow cavity 12 inside. The inner sidewall of the radiator housing 1 has a plurality of heat dissipation plates 13. One end of each heat dissipation plate 13 is connected to the outer wall of the second flow cavity 12, and the other end of each heat dissipation plate 13 is connected to the inner wall of the radiator housing 11, that is, the heat dissipation plate 13 is located on the side of the second flow cavity 12 away from the first flow cavity 11. The boss 2 has a third flow cavity 21. One end of the third flow cavity 21 communicates with the first flow cavity 11, and the other end of the third flow cavity 21 communicates with the second flow cavity 12. In this embodiment, twenty heat dissipation plates 13 extend from the side of the second flow cavity 12 near the inner wall of the radiator housing 1. These heat dissipation plates 13 accelerate heat transfer, allowing heat within the second flow cavity 12 to be transferred more quickly to the radiator housing 1, thus accelerating heat exchange with the external environment and improving the heat dissipation efficiency of the liquid-cooled radiator. The heat dissipation plates also act as reinforcing ribs inside the radiator housing, strengthening its mechanical strength and reducing the risk of it collapsing due to impact. The first flow cavity 11, the second flow cavity 12, and the third flow cavity 21 are interconnected, extending the fluid's residence time inside the radiator and enabling more thorough heat exchange with the radiator surface. This transfers more heat from the heat source to the radiator, which then dissipates it into the air, improving heat dissipation efficiency and reducing the operating temperature of the heat source.

[0030] Furthermore, a flow divider 121 is provided within the second flow cavity 12, dividing it into a first flow channel 122 and a second flow channel 123. The flow divider 121 diverts the fluid within the first flow cavity 11 and alters the flow direction and velocity distribution of the fluid, which helps reduce the formation of eddies in the second flow cavity 12, thereby reducing energy loss. Secondly, the flow divider 121 separates the fluid within the second flow cavity 12 into two different flow channels, allowing the fluid in the first flow channel 122 and the second flow channel 123 to more fully contact the liquid-cooled radiator, increasing the heat exchange area between the heated fluid and the radiator, improving heat exchange efficiency, and accelerating the heat dissipation effect of the liquid-cooled radiator.

[0031] Furthermore, the radiator housing is also provided with multiple connecting plates 18, which are located within the flow divider plate 121. One end of any connecting plate 18 is fixedly connected to the side wall of the flow divider plate 121 near the first flow channel 122, and the other end of the connecting plate is fixedly connected to the side wall of the flow divider plate 121 near the second flow channel 123. In this embodiment, the flow divider plate 121 contains connecting plates 18, which are used to exchange heat between the first flow channel 122 and the second flow channel 123. When the temperature of the second flow channel 123 is higher than that of the first flow channel 122, heat is transferred from the second flow channel 123 to the first flow channel 122 through the connecting plates 18, making the temperatures of the first flow channel 122 and the second flow channel 123 the same. When the temperatures on both sides are the same, it means that the heat transfer in the liquid-cooled radiator has reached a stable state. In this state, the radiator can more effectively transfer heat from the heat source to the surrounding environment, thereby improving heat dissipation efficiency.

[0032] Furthermore, the geometric center of the radiator housing 1 is recessed inward to form a groove 14, and a snap-fit ​​frustum 15 is provided in the groove 14. In this embodiment, the groove 14 can be used to insert into the corresponding position or directly contact the heat source, and the snap-fit ​​protrusion 2 is used to snap the radiator housing 1 to the heat source, so that the radiator housing 1 can directly contact the heat source, which can reduce intermediate links in the heat transfer process, thereby reducing thermal resistance and facilitating faster heat exchange between the heat source and the radiator.

[0033] Furthermore, a plurality of fixing holes 141 are provided at the root of the groove 14, and the plurality of fixing holes 141 are arranged in an array with the center of the groove 14 as a reference. In this embodiment, two fixing holes 141 are provided at the root of the groove 14, but the number of fixing holes 141 can be adjusted according to the installation location. If the installation location is subject to frequent vibration, the number of fixing holes 141 can be adjusted to four or even more. The fixing holes 141 are used to reinforce the liquid cooler and the corresponding installation location. The two fixing holes 141 disperse the force on the component, reduce the pressure concentration at a single fixing point, thereby improving the stability and durability of the liquid cooler. In addition, the two fixing holes 141 connect the components, which can increase the strength and reliability of the connection, and help reduce the risk of overall structural damage due to single-point connection failure.

[0034] Furthermore, the radiator housing 1 is provided with an inlet 16 and an outlet 17. The inlet 16 has an embedded inlet pipe 161, which is connected to the first flow chamber 11. The outlet 17 has an embedded outlet pipe 171, which is connected to the second flow chamber 12. The inlet 16 supplies fluid to the first flow chamber, and the outlet 17 discharges fluid from the second flow chamber. The synergistic effect of the inlet 16 and the outlet 17 ensures the efficient operation of the water-cooled heat dissipation system. By continuously introducing new cooling water and discharging hot circulating water, the radiator can continuously and effectively absorb and remove heat, thereby improving heat dissipation efficiency.

[0035] Furthermore, the outlet pipe 171 is provided with a first locking groove 14, and the inlet pipe 161 is provided with a second locking groove 14. The first locking groove 14 is used to limit the movement range of the outlet pipe 171, and the second locking groove 14 is used to limit the movement range of the inlet pipe 161. The first locking groove 14 can enhance the connection strength between the outlet pipe 171 and the radiator housing 1, preventing the outlet pipe 171 from loosening or falling off due to vibration generated during operation, and helping to fix the outlet pipe 171 in the designated position on the radiator housing, ensuring the stable operation of the system. Similarly, the second locking groove 14 can enhance the connection strength between the inlet pipe 161 and the radiator housing 1, preventing the inlet pipe 161 from loosening or falling off due to vibration generated during operation, and helping to fix the inlet pipe 161 in the designated position on the radiator housing, ensuring the stable operation of the system.

[0036] Furthermore, the third flow cavity 21 is provided with a plurality of flow-guiding protrusions 211, which are distributed at preset positions on the sidewalls of the third flow cavity 21. In this embodiment, the third flow cavity 21 is provided with thirty-six flow-guiding protrusions 211, of which eighteen flow-guiding protrusions 211 are located on one side of the inner wall of the third flow cavity 21, and the other eighteen flow-guiding protrusions 211 are located on the other side of the inner wall of the third flow cavity 21, and the flow-guiding protrusions 211 on the two sides are staggered. The flow-guiding protrusions 211 can naturally guide the fluid to flow in a predetermined direction, reduce flow resistance, and improve flow efficiency; secondly, the flow-guiding protrusions 211 increase the contact area between the interior of the third flow cavity 21 and the fluid, accelerate the heat exchange efficiency between the fluid and the heat source, and thus accelerate the rate at which the fluid absorbs heat.

[0037] Furthermore, each of the flow-guiding protrusions 211 has a slope facing the opposite direction to the water flow. This slope design allows for more complex fluid flow paths within a limited space. Specifically, the slope guides the fluid to flow in a specified direction, such that the fluid flows from the left side of the third flow chamber 21 to the right side, and then from the right side back to the left side. This prolongs the time the fluid spends in the third flow chamber 21, allowing for a more even distribution of heat within the fluid. This reduces the temperature gradient inside the radiator, preventing localized overheating and ensuring sufficient time for the fluid to absorb and carry heat into the second flow chamber 12 and out of the liquid-cooled radiator, thus improving the radiator's heat dissipation effect.

[0038] Furthermore, the radiator housing 1 and the boss 2 are integrally formed, which enables the production of a more complete, robust, and reliable product. This avoids the gaps and defects caused by splicing in traditional processes, thereby reducing the risk of gaps between the radiator housing 1 and the boss 2. It also avoids the risk of fluid leakage from the gaps between the radiator housing 1 and the boss 2 during use, which could lead to a decrease in the heat dissipation performance of the liquid-cooled radiator. This helps to ensure the heat dissipation effect of the liquid-cooled radiator.

[0039] In summary, by setting up multiple heat dissipation plates, the heat in the second flow cavity can be transferred to the radiator shell more quickly through these heat dissipation plates, accelerating the exchange of heat with the external environment and thus improving the heat dissipation efficiency of the liquid-cooled radiator. The present invention has a first flow cavity, a second flow cavity, and a third flow cavity, and the three are connected, which prolongs the residence time of the fluid inside the radiator, enabling more thorough heat exchange with the radiator surface, transferring more heat from the heat source to the radiator, and then dissipating the heat from the radiator into the air, which helps to improve the heat dissipation efficiency and reduce the operating temperature of the heat source.

[0040] Furthermore, the above description provides a detailed introduction to a liquid-cooled radiator provided by the embodiments of this utility model. Specific examples have been used to illustrate the principle and implementation of this utility model. The description of the above embodiments is only for the purpose of helping to understand the method and core idea of ​​this utility model. At the same time, for those skilled in the art, there will be changes in the specific implementation and application scope based on the idea of ​​this utility model. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A liquid-cooled heat sink, characterized in that, The liquid-cooled radiator includes: a radiator housing and a boss disposed on the radiator housing; The radiator housing has a first flow cavity and a second flow cavity inside; The inner wall of the radiator housing has a plurality of heat dissipation plates, one end of each heat dissipation plate is connected to the inner wall of the radiator housing, and the other end of each heat dissipation plate is connected to the outer wall of the second flow cavity; The boss has a third flow cavity, one end of which is connected to the first flow cavity, and the other end of which is connected to the second flow cavity.

2. The liquid-cooled heat sink according to claim 1, characterized in that, A flow divider is provided inside the second flow cavity, which divides the second flow cavity into a first flow channel and a second flow channel.

3. The liquid-cooled radiator according to claim 2, characterized in that, The radiator housing is provided with multiple connecting plates, which are located in the flow divider plate; One end of any of the connecting plates is fixedly connected to the side wall of the diverter plate near the first flow channel, and the other end of the connecting plate is fixedly connected to the side wall of the diverter plate near the second flow channel.

4. The liquid-cooled radiator according to claim 1, characterized in that, The geometric center of the radiator housing is recessed inward to form a groove, and a snap-fit ​​frustum is provided in the groove.

5. The liquid-cooled radiator according to claim 4, characterized in that, The groove has multiple fixing holes at its root, and these fixing holes are arranged in an array with the center of the groove as the reference.

6. The liquid-cooled radiator according to claim 1, characterized in that, The radiator housing is provided with a water inlet and a water outlet. The water inlet is embedded with a water inlet pipe and is connected to the first flow chamber through the water inlet pipe. The outlet has an embedded water outlet pipe, and the outlet is connected to the second flow chamber through the water outlet pipe.

7. The liquid-cooled radiator according to claim 6, characterized in that, The water outlet pipe is provided with a first locking groove, and the water inlet pipe is provided with a second locking groove.

8. The liquid-cooled radiator according to claim 1, characterized in that, The third flow cavity is provided with multiple flow-guiding protrusions, which are distributed on the side wall of the third flow cavity at preset positions.

9. The liquid-cooled radiator according to claim 8, characterized in that, Each of the drainage protrusions has a slope facing the side opposite to the direction of water flow.

10. The liquid-cooled heat sink according to claim 1, characterized in that, The radiator housing and the boss are integrally formed.