A liquid-cooled heat sink based on OSFP optical modules

Abstract

This utility model discloses a liquid-cooled heat sink based on OSFP optical modules, including a liquid-cooled plate body, multiple OSFP optical modules, and multiple spring clips. The liquid-cooled plate body has a main flow channel and multiple branch flow channels. The connector, main flow channel, and multiple branch flow channels form a closed cavity, which is filled with coolant. The multiple optical modules are evenly distributed and fixedly connected to the liquid-cooled plate body. The spring clips are spaced apart from the optical modules. The two sides of each optical module are fixedly connected to the liquid-cooled plate body by adjacent spring clips. The liquid-cooled heat sink based on OSFP optical modules provided by this utility model uses spring clips to attach and fix the optical modules to the liquid-cooled plate body, which greatly reduces stress deformation and stress interference between the optical modules. The coolant circulates in the connector, main flow channel, and multiple branch flow channels, which quickly and efficiently transfers the heat generated by the optical modules, thereby improving the heat dissipation efficiency of the liquid-cooled heat sink.

Description

Technical Field

[0001] This utility model relates to the field of heat sink technology, and in particular to a liquid-cooled heat sink based on an OSFP optical module. Background Technology

[0002] In the field of optical communication, OSFP stands for Octal Small Formfactor Pluggable. OSFP optical modules are devices that can convert electrical signals into optical signals, thereby accelerating data transmission efficiency. Therefore, OSFP optical modules are widely used in high-speed communication, especially in data centers and cloud computing environments.

[0003] With the application of OSFP optical modules, their heat dissipation requirements are becoming increasingly stringent, and existing air-cooled heat sinks can no longer meet their heat dissipation needs. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this utility model is to provide a liquid-cooled heat sink based on OSFP optical modules. This heat sink uses spring clips to attach and fix the optical modules to the liquid cooling plate body, significantly reducing stress deformation and stress interference between the optical modules. By circulating the coolant in the connector, main channel, and multiple branch channels, the heat generated by the optical modules is quickly and efficiently transferred away.

[0005] To achieve the above objectives, this utility model provides a liquid-cooled heat sink based on OSFP optical modules, including a liquid-cooled plate body, multiple OSFP optical module heat sinks, and multiple spring contacts. The liquid cooling plate body has a main flow channel and multiple branch flow channels. The liquid cooling plate body also has a connector communicating with the main flow channel. The connector, the main flow channel, and the multiple branch flow channels form a closed cavity, and the closed cavity is filled with coolant. Multiple optical modules are evenly distributed and fixedly connected to the liquid-cooled plate body, with the optical module heat sink located above the distribution channel. The spring clips are fixedly connected to the liquid cooling plate body and are spaced apart from the optical module. The two sides of the optical module are fixedly connected to the liquid cooling plate body by adjacent spring clips.

[0006] Preferably, the connector includes an inflow connector and an outflow connector, the main channel includes an inflow main channel and an outflow main channel, the branch channel includes an inflow branch channel and an outflow branch channel, the inflow main channel communicates with multiple inflow branch channels, the outflow main channel communicates with multiple outflow branch channels, the inflow connector is connected to the inflow main channel, and the outflow connector communicates with the outflow main channel.

[0007] Preferably, the main channel and the branch channel are perpendicular to each other, and the inflow branch channel and the outflow branch channel are connected at the ends away from the main channel.

[0008] Preferably, the liquid cooling plate body includes a first lower body and a first upper body. The first upper body is provided with a plurality of evenly distributed fins. The coolant flows from the first lower body into the second upper body to complete heat exchange, and flows back to the main channel through the first lower body.

[0009] Preferably, the liquid cooling plate body further includes a second upper body, and the first lower body is provided with at least two first grooves, and the main channel is formed between the first grooves and the second upper body.

[0010] Preferably, there are two first grooves, and the first grooves and the second upper body form an inflow channel and an outflow channel.

[0011] Preferably, the liquid cooling plate body further includes a second lower body, the second lower body having at least one second groove, the second groove forming the flow channel with the first lower body.

[0012] Preferably, there are two second grooves, and the second grooves form an inflow branch channel and an outflow branch channel between the first lower body and the first lower body.

[0013] The beneficial effects of this utility model are as follows: The liquid-cooled heat sink based on OSFP optical modules provided by this utility model uses spring clips to attach and fix the optical modules to the liquid cooling plate body, which greatly reduces the stress deformation and stress interference between the optical modules. By circulating the coolant in the connector, the main channel and multiple branch channels, the heat generated by the optical modules is transferred out quickly and efficiently, thereby improving the heat dissipation efficiency of the liquid-cooled heat sink. By setting the main channel to flow into and out of the main channel, and the branch channels to flow into and out of the branch channels, the heat dissipation efficiency of the liquid-cooled heat sink is improved through the interconnection of the main channel and multiple branch channels. This makes the heat dissipation efficiency of the liquid-cooled heat sink much greater than that of an air-cooled heat sink of the same volume. Attached Figure Description

[0014] The accompanying drawings illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the principles of the present invention. These drawings are included to provide a further understanding of the present invention and are incorporated in and constitute a part of this specification.

[0015] Figure 1 This is a schematic diagram of the external structure of the liquid-cooled heat sink in Example 1; Figure 2 This is a rear view of the liquid-cooled heat sink in Example 1; Figure 3 This is a schematic diagram of the main channel structure of the liquid-cooled heat sink in Example 1; Figure 4 for Figure 3 A cross-sectional view at point AA. Detailed Implementation

[0016] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of the present invention. Furthermore, it should be noted that, for ease of description, only the parts relevant to the present invention are shown in the accompanying drawings.

[0017] It should be noted that, where there is no conflict, the embodiments and features in the embodiments of this utility model can be combined with each other. The present utility model will now be described in detail with reference to the accompanying drawings and embodiments.

[0018] Example 1: Please refer to Figures 1 to 4 This embodiment 1 includes: A liquid-cooled heat sink based on OSFP optical modules includes a liquid cooling plate body 1, multiple OSFP optical modules 2, and multiple spring contacts 3. The liquid cooling plate body 1 has a main flow channel and multiple branch flow channels. The liquid cooling plate body 1 also has a connector that communicates with the main flow channel. The connector, the main flow channel, and the multiple branch flow channels form a closed cavity, and the closed cavity is filled with coolant. Multiple optical modules 2 are evenly distributed and fixedly connected to the liquid-cooled plate body 1. The optical modules 2 are located above the distribution channel, and the optical modules 2 are physically isolated from the distribution channel. The spring clip 3 is fixedly connected to the liquid cooling plate body 1 and is spaced apart from the optical module 2. The two sides of the optical module 2 are fixedly connected to the liquid cooling plate body 1 through adjacent spring clips 3.

[0019] In this embodiment, the optical module 2 is welded to the liquid cooling plate body 1. Although it is welded, there is stress interference between adjacent optical modules 2. Therefore, the pressure of the spring sheet 3 is used to attach the optical module 2 to the liquid cooling plate body 1, making the optical module 2 work more stably. Due to the connector, main channel and multiple branch channels, a closed cavity is formed. Coolant is injected into the main channel through the connector. Through the flow of coolant in the main channel and branch channels, the heat of the optical module 2 is conducted away, thereby reducing the temperature of the optical module 2 and improving the heat dissipation efficiency of the heat sink.

[0020] The connector includes an inlet connector 41 and an outlet connector 42. The main flow channel includes an inlet main flow channel 51 and an outlet main flow channel 52. The branch flow channel includes an inlet branch flow channel 61 and an outlet branch flow channel 62. The inlet main flow channel 51 is connected to multiple inlet branch flow channels 61, and the outlet main flow channel 52 is connected to multiple outlet branch flow channels 62. The inlet connector 41 is connected to the inlet main flow channel 51, and the outlet connector 42 is connected to the outlet main flow channel 52. The coolant with a lower temperature flows from the inlet connector 41 into the inlet main flow channel 51 and then into each inlet branch flow channel 61. Since the optical module 2 is located above the branch flow channel, the temperature of the coolant increases at this time. The coolant with a higher temperature continues to flow into the outlet branch flow channel 62 and then flows back into the outlet main flow channel 52. It then flows out from the outlet connector 42 through the outlet main flow channel 52, thereby transferring the heat generated by the optical module 2, reducing the temperature of the optical module 2, and realizing liquid cooling heat dissipation. Compared with traditional air-cooled heat sinks, the heat dissipation efficiency increases geometrically and is higher.

[0021] The main flow channel and the branch flow channel are perpendicular to each other, but they can also be non-perpendicular depending on actual needs. The inflow branch flow channel 61 and the outflow branch flow channel 62 are connected at the ends away from the main flow channel, so that the coolant flows from the inflow branch flow channel 61 to the outflow branch flow channel 62, realizing the flow and circulation of the coolant throughout the cavity.

[0022] The liquid cooling plate body 1 includes a first lower body 11 and a first upper body 12. The first upper body 12 is provided with a plurality of evenly distributed grooves 13. The optical module 2 is fixedly connected in the grooves 13. The first upper body 12 is provided with a plurality of evenly distributed fins. The coolant flows from the first lower body 11 into the second upper body 14 to complete heat exchange, and flows back to the main channel through the first lower body 11.

[0023] The liquid cooling plate body 1 also includes a second upper body 14. The first lower body 11 is provided with at least two first grooves 71, and a main channel is formed between the first grooves 71 and the second upper body 14.

[0024] Specifically, in this embodiment, there are two first grooves 71. The first grooves 71 and the second upper body 14 form an inflow main channel 51 and an outflow main channel 52, which are connected to the main channel in parallel, series, and series-parallel configurations. The coolant has a lower temperature in the inflow main channel 51 and a higher temperature in the outflow main channel 52. Therefore, in this embodiment, the inflow main channel 51 is farther from the optical module 2 and its length is shorter than that of the outflow main channel 52, resulting in a higher temperature of the coolant in the outflow main channel 52. This allows the coolant at a higher temperature to be transferred out, thereby reducing the heat generated by the optical module 2 to a greater extent and improving the heat dissipation efficiency of the radiator.

[0025] The liquid cooling plate body 1 also includes a second lower body 15, which is provided with at least one second groove 72, and a flow channel is formed between the second groove 72 and the first lower body 11.

[0026] Specifically, in this embodiment, there are two second grooves 72, and an inflow diversion channel 61 and an outflow diversion channel 62 are formed between the second grooves 72 and the first lower body 11.

[0027] The liquid-cooled heat sink based on OSFP optical modules provided by this utility model uses spring clips to attach and fix the optical modules to the liquid cooling plate body, which greatly reduces the height difference caused by stress deformation between multiple optical modules, thus affecting the heat sink and the optical modules. By forming a closed cavity with connectors, main channels and multiple branch channels, the coolant circulates in the cavity, which quickly and efficiently transfers the heat generated by the optical modules, thereby improving the heat dissipation efficiency of the liquid-cooled heat sink. By setting the main channels to flow into and out of the main channels, and the branch channels to flow into and out of the branch channels, the interconnection of the main channels and multiple branch channels further improves the heat dissipation efficiency of the liquid-cooled heat sink, making the heat dissipation efficiency of this liquid-cooled heat sink much greater than that of an air-cooled heat sink of the same volume.

[0028] Those skilled in the art should understand that the above embodiments are merely for clearly illustrating the present invention and are not intended to limit the scope of the present invention. For those skilled in the art, other changes or modifications can be made based on the above-described invention, and these changes or modifications still fall within the scope of the present invention.

Claims

1. An OSFP optical module based liquid cooled heat sink, characterized by: Includes the liquid cooling plate body, multiple OSFP optical module heat sinks, and multiple contact springs. The liquid cooling plate body has a main flow channel and multiple branch flow channels. The liquid cooling plate body also has a connector communicating with the main flow channel. The connector, the main flow channel, and the multiple branch flow channels form a closed cavity, and the closed cavity is filled with coolant. Multiple optical modules are evenly distributed and fixedly connected to the liquid-cooled plate body, with the optical module heat sink located above the distribution channel. The spring clips are fixedly connected to the liquid cooling plate body and are spaced apart from the optical module. The two sides of the optical module are fixedly connected to the liquid cooling plate body by adjacent spring clips.

2. The liquid-cooled heat sink for OSFP-based optical modules of claim 1, wherein: The connector includes an inlet connector and an outlet connector, the main channel includes an inlet main channel and an outlet main channel, the branch channel includes an inlet branch channel and an outlet branch channel, the inlet main channel is connected to multiple inlet branch channels, the outlet main channel is connected to multiple outlet branch channels, the inlet connector is connected to the inlet main channel, and the outlet connector is connected to the outlet main channel.

3. The liquid-cooled heat sink for OSFP-based optical modules of claim 2, wherein: The inflow branch channel and the outflow branch channel are connected at the ends away from the main channel.

4. The liquid-cooled heat sink for OSFP-based optical modules of claim 2, wherein: The liquid cooling plate body includes a first lower body and a first upper body. The first upper body is provided with a plurality of evenly distributed fins. The coolant flows from the first lower body into the second upper body to complete heat exchange, and flows back to the main channel through the first lower body.

5. The liquid-cooled heat sink based on the OSFP optical module according to claim 4, characterized in that: The liquid cooling plate body also includes a second upper body, and the first lower body is provided with at least two first grooves, and the main channel is formed between the first grooves and the second upper body.

6. The liquid-cooled heat sink for OSFP-based optical modules of claim 5, wherein: There are two first grooves, and the first grooves and the second upper body form an inflow channel and an outflow channel.

7. The liquid-cooled heat sink for OSFP-based optical modules of claim 4, wherein: The liquid cooling plate body also includes a second lower body, the second lower body having at least one second groove, the second groove forming the flow channel with the first lower body.

8. The liquid-cooled heat sink for OSFP-based optical modules of claim 7, wherein: There are two second grooves, and the second grooves and the first lower body form an inflow branch channel and an outflow branch channel.

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