Multi-hard-disk liquid cooling heat dissipation plate structure

Abstract

The invention relates to a multi-hard-disk liquid cooling heat dissipation plate structure, which comprises a cold plate structure, the cold plate structure comprises a shell and a cold plate main body, the cold plate main body is arranged in the shell, the cold plate main body and the inner wall of the shell are enclosed to form a plurality of heat dissipation flow channels, the heat dissipation flow channels are used for cooling liquid to flow, and the heat dissipation flow channels are communicated with an external cooling capacity distribution unit. Every two adjacent heat dissipation flow channels are communicated with each other; a plurality of groups of slot avoiding holes are formed in the upper end of the shell, and the hard disk is connected with the cold plate structure through the plurality of groups of slot avoiding holes for heat exchange. By the adoption of the structure, circulating heat dissipation of the multiple hard disks is completed, the heat dissipation effect of the multiple sets of hard disks is uniform, the heat exchange efficiency is high, and the occupied area is small.

Description

Technical Field

[0001] The present invention relates to the technical field of liquid cooling heat dissipation, and particularly relates to a liquid cooling heat dissipation plate structure for multiple hard disks. Background Art

[0002] With the rapid development of information technology, the capacity and power consumption of storage hard disks are getting higher and higher, and the overheating problem of hard disks has gradually attracted attention. Currently, in the industry, air cooling is used for hard disk heat dissipation, that is, by installing a fan on the inner wall of the hard disk chassis, and driving air to flow on the surface of the hard disk through the fan to take away the heat generated by the hard disk. This heat dissipation method results in a large temperature difference of the hard disks to be cooled, and it is becoming increasingly ineffective for the increasing number of hard disks. As the number of hard disks increases, the heat flux density gradually increases, and the flow resistance of air gradually increases. Using traditional air cooling can no longer cope with the working conditions of the increasing number of hard disks.

[0003] Therefore, there is an urgent need to provide a liquid cooling heat dissipation plate structure for multiple hard disks to solve the above problems. Summary of the Invention

[0004] The purpose of the present invention is to overcome the deficiencies and defects of the prior art, and provide a liquid cooling heat dissipation plate structure for multiple hard disks, which realizes the circulating heat dissipation of multiple hard disks, and the heat dissipation effects of multiple groups of hard disks are uniform, the heat exchange efficiency is high, and the occupied area is small.

[0005] The purpose of the present invention is achieved by the following technical solutions:

[0006] A liquid cooling heat dissipation plate structure for multiple hard disks, characterized in that it includes a cold plate structure, the cold plate structure includes a housing and a cold plate main body, the cold plate main body is arranged inside the housing, and a plurality of heat dissipation channels are formed between the cold plate main body and the inner wall of the housing for the coolant to flow through. The heat dissipation channels are communicated with an external cold quantity distribution unit, and adjacent heat dissipation channels communicate with each other; a plurality of slot avoidance holes are provided at the upper end of the housing, and the hard disks are connected to the cold plate structure through the plurality of slot avoidance holes for heat exchange.

[0007] Optionally, the housing includes an upper cold plate shell and a lower cold plate shell, the upper cold plate shell and the lower cold plate shell enclose to form the housing, a plurality of slot avoidance holes are evenly arranged on the upper cold plate shell and the lower cold plate shell, and the slot avoidance holes on the upper cold plate shell and the slot avoidance holes on the lower cold plate shell are correspondingly and penetratingly arranged. The cold plate main body, the upper cold plate shell and the lower cold plate shell jointly enclose to form the heat dissipation channels.

[0008] Optionally, the cold plate body includes a manifold plate, a bottom cold plate, and a vertical cold plate. There are multiple groups of the vertical cold plates, and the multiple groups of vertical cold plates are vertically spaced and arranged at the upper end of the bottom cold plate. The manifold plate is perpendicularly connected to the front end of the bottom cold plate, and the manifold plate is also perpendicularly connected to the multiple groups of vertical cold plates. A through hole penetrating the end face is provided at the side end of the vertical cold plate, and adjacent two heat dissipation channels are communicated through the through hole.

[0009] Optionally, the manifold plate is connected to the bottom cold plate and the vertical cold plate by threads, and a sealing rubber ring is provided at the connection.

[0010] Optionally, a water inlet nozzle and a water outlet nozzle are provided on the housing. The water inlet nozzle and the water outlet nozzle are both provided on the same side of the housing, and both the water inlet nozzle and the water outlet nozzle are communicated with the heat dissipation channel through the manifold plate.

[0011] Optionally, copper columns are provided at the upper end of the lower cold plate housing. There are multiple groups of the copper columns, and the multiple groups of copper columns are spaced and arranged in the heat dissipation channel. The upper and lower end faces of the copper column are respectively connected to the upper cold plate housing and the lower cold plate housing. After the copper columns are arranged at intervals on the lower cold plate housing, they are welded between the upper cold plate housing and the lower cold plate housing by diffusion welding.

[0012] Optionally, the upper cold plate housing is formed by laser cutting, the lower cold plate housing is formed by stamping process, the water inlet nozzle and the water outlet nozzle are formed by turning, and the water inlet nozzle and the water outlet nozzle are both welded to the front end of the housing.

[0013] Optionally, the liquid cooling heat dissipation plate structure for multiple hard disks further includes a heat conduction pad. The heat conduction pad is provided at the upper end of the upper cold plate housing to conduct the heat in the hard disk into the cold plate structure.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] In the present invention, the cold plate structure includes a housing and a cold plate body, wherein the cold plate body is disposed inside the housing, and the housing is used to protect the cold plate body; a plurality of heat dissipation channels are formed between the cold plate body and the inner wall of the housing, and the heat dissipation channels are used for the coolant to flow through, and the heat dissipation channels are communicated with an external cold quantity distribution unit, that is, the coolant enters the heat dissipation channels in the housing through the external cold quantity distribution unit. Since the adjacent heat dissipation channels communicate with each other, after fully exchanging heat with the cold plate body, the coolant flows out of the housing, and then after cooling by exchanging heat with the outside, it flows back into the housing again, so as to complete the heat dissipation purpose in a cycle, and the recycling utilization rate of the coolant can be improved; a plurality of slot avoidance holes are provided at the upper end of the housing, and the hard disk is connected to the cold plate structure through the plurality of slot avoidance holes for heat exchange. A plurality of hard disks are inserted onto the cold plate body through the plurality of slot avoidance holes at the upper end of the housing. The heat generated by the plurality of hard disks during operation is continuously transmitted to the cold plate body for heat exchange. At the same time, the coolant flows along the heat dissipation channels for heat exchange with the cold plate body. After completing the heat exchange of the cold plate body, the coolant flows out of the housing. Through the arrangement of the above components, the cyclic heat dissipation of multiple hard disks is completed, and the heat dissipation effects of the multiple hard disks are uniform, the heat exchange efficiency is high, and the occupied area is small. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is an exploded structural schematic diagram of the present invention.

[0017] Figure 2 is a structural schematic diagram of the present invention.

[0018] Figure 3 is a structural schematic diagram of the cold plate body in the present invention.

[0019] Figure 4 is another structural schematic diagram of the cold plate body in the present invention.

[0020] Figure 5 is a front view of the upper cold plate shell in the present invention.

[0021] Figure 6 is a front view of the lower cold plate shell in the present invention.

[0022] Figure 7 is a front view of the vertical cold plate in the present invention.

[0023] Among them, the above-mentioned drawings include the following reference numerals:

[0024] 1. Cold plate body, 11. Confluence plate, 12. Bottom cold plate, 13. Vertical cold plate, 14. Heat dissipation channel, 15. Through hole, 16. Sealing rubber ring, 21. Upper cold plate shell, 211. Slot avoidance hole, 22. Lower cold plate shell, 23. Water inlet nozzle, 24. Water outlet nozzle, 25. Copper column, 26. Thermal conductive pad. DETAILED DESCRIPTION OF THE INVENTION

[0025] The present invention will be further described in detail below in conjunction with embodiments and the accompanying drawings, but the implementation manners of the present invention are not limited thereto.

[0026] In the description of the present invention, it should be noted that, unless otherwise clearly specified and defined, terms such as "installation", "provided with", "connection", etc. should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

[0027] Referring to Figures 1 to 7 , in this embodiment, it includes a cold plate structure, and the cold plate structure includes a housing and a cold plate body 1. The cold plate body 1 is arranged inside the housing. A plurality of heat dissipation channels 14 are formed by the enclosure of the cold plate body 1 and the inner wall of the housing. The heat dissipation channels 14 are used for the flow of the coolant. The heat dissipation channels 14 are communicated with the external cold quantity distribution unit, and the adjacent heat dissipation channels 14 communicate with each other; a plurality of slot avoidance holes 211 are provided at the upper end of the housing. The hard disk is connected to the cold plate structure through the plurality of slot avoidance holes 211 for heat exchange.

[0028] Optionally, in this embodiment, the liquid cooling heat dissipation plate structure of the multi-hard disk includes a housing, a cold plate main body 1, and a plurality of heat dissipation channels 14 formed in the housing. The cold plate structure includes the housing and the cold plate main body 1, where the cold plate main body 1 is disposed in the housing. The housing is used to protect the cold plate main body 1 to prevent external substances or dust from entering the housing and affecting the heat dissipation effect and service life of the cold plate main body 1; a plurality of heat dissipation channels 14 are formed by surrounding the cold plate main body 1 and the inner wall of the housing. The heat dissipation channels 14 are used for the coolant to flow through, and the heat dissipation channels 14 are communicated with an external cold quantity distribution unit. That is, the coolant enters the heat dissipation channels 14 in the housing through the external cold quantity distribution unit. Since the adjacent heat dissipation channels 14 communicate with each other, that is, the coolant flows along the heat dissipation channels 14, after fully exchanging heat with the cold plate main body 1, it flows out of the housing, and then after cooling down by exchanging heat with the outside, it re-enters the housing, so as to complete the heat dissipation purpose in a cycle, and can improve the recycling utilization rate of the coolant; a plurality of groups of slot avoidance holes 211 are provided at the upper end of the housing. The hard disks are connected to the cold plate structure through the plurality of groups of slot avoidance holes 211 for heat exchange. The plurality of groups of hard disks are inserted onto the cold plate main body 1 through the plurality of groups of slot avoidance holes 211 at the upper end of the housing. The heat generated by the plurality of groups of hard disks during operation is continuously transmitted to the cold plate main body 1 for heat exchange. At the same time, the coolant flows along the heat dissipation channels 14 for heat exchange with the cold plate main body 1. After completing the heat exchange of the cold plate main body 1, it flows out of the housing. After cooling down by heat exchange in the outside world, the coolant re-enters the housing for heat exchange with the cold plate main body 1. Through the setting of the above components, the cyclic heat dissipation of the multi-hard disk is completed, and the heat dissipation effects of the plurality of groups of hard disks are uniform, the heat exchange efficiency is high, and the occupied area is small.

[0029] In this embodiment, the housing includes a cold plate upper shell 21 and a cold plate lower shell 22. The cold plate upper shell 21 and the cold plate lower shell 22 surround to form the housing, and the cold plate upper shell 21 and the cold plate lower shell 22 can be detachably connected, connected by bolts or snap connections, or can be integrally injection-molded and sealed. This is not limited here. Through the detachable connection, it is convenient to repair and replace the cold plate main body 1; and a plurality of groups of slot avoidance holes 211 are evenly provided on the cold plate upper shell 21 and the cold plate lower shell 22, and the slot avoidance holes 211 on the cold plate upper shell 21 and the slot avoidance holes 211 on the cold plate lower shell 22 are correspondingly arranged; the cold plate main body 1, the cold plate upper shell 21, and the cold plate lower shell 22 jointly surround to form the heat dissipation channels 14. The plurality of groups of hard disks are inserted onto the cold plate main body 1 through the plurality of groups of slot avoidance holes 211 at the upper end of the cold plate upper shell 21 for heat exchange with the cold plate main body 1. At the same time, the coolant flows along the heat dissipation channels 14 to complete the heat exchange of the cold plate main body 1, thereby completing the heat dissipation of the plurality of groups of hard disks.

[0030] In this embodiment, the cold plate body 1 includes a manifold 11, a bottom cold plate 12, and a vertical cold plate 13. There are multiple groups of the vertical cold plates 13, and the multiple groups of vertical cold plates 13 are vertically spaced and arranged at the upper end of the cold plate. The manifold 11 is perpendicularly connected and arranged at the front end of the bottom cold plate 12, and the manifold 11 is also perpendicularly connected to the multiple groups of vertical cold plates 13, that is, the manifold 11, the bottom cold plate 12, and the vertical cold plates 13 are all perpendicularly connected to each other. The manifold 11, the bottom cold plate 12, and the vertical cold plates 13 jointly enclose to form the cold plate body 1. The manifold 11 is used to collect and distribute the coolant, evenly distribute the coolant into each heat dissipation channel 14 in the cold plate body 1, ensure the heat dissipation uniformity in each heat dissipation channel 14, avoid uneven heat dissipation or local overheating, and collect the coolant after heat exchange flowing through each heat dissipation channel 14, facilitating subsequent circulation or discharge; and through holes 15 penetrating the end faces are provided at the side ends of the vertical cold plates 13, and adjacent two groups of heat dissipation channels 14 are communicated through the through holes 15; further, in this embodiment, the manifold 11 is connected to the bottom cold plate 12 and the vertical cold plates 13 by threads and fastened by screws, and a sealing rubber ring 16 is provided at the connection to seal the connection. The contact area between the cold plate and the hard disk is larger and more sufficient, so the heat exchange effect is better, and the combination of screws and rubber rings makes the structure assembly simple and the cost low.

[0031] In this embodiment, a water inlet nozzle 23 and a water outlet nozzle 24 are provided on the housing. The water inlet nozzle 23 and the water outlet nozzle 24 are both arranged on the same side of the housing, and the water inlet nozzle 23 and the water outlet nozzle 24 are both communicated with the heat dissipation channels 14 through the manifold 11, that is, the coolant is evenly distributed into each heat dissipation channel 14 in the cold plate body 1 through the water inlet nozzle 23 and the manifold 11. After heat exchange, the manifold 11 collects the coolant and flows it out to the outside through the water outlet nozzle 24.

[0032] In this embodiment, copper columns 25 are provided at the upper end of the cold plate lower shell 22, and there are multiple groups of the copper columns 25. The multiple groups of copper columns 25 are all spaced and arranged in the heat dissipation channels 14. The upper and lower end faces of the copper columns 25 are respectively connected to the cold plate upper shell 21 and the cold plate lower shell 22. After the copper columns 25 are spaced and arranged on the cold plate lower shell 22, the setting of the copper columns 25 can effectively provide the support strength and the internal pressure resistance strength, and can improve the heat exchange efficiency between the coolant and the cold plate; welded between the cold plate upper shell 21 and the cold plate lower shell 22 by diffusion welding, it can realize the synchronous welding of a large area and a multi-channel structure at one time, reduce the welding cycle, and at the same time, since it is a solid-state welding, there is no melting or foreign matter introduction, avoiding the blockage or corrosion caused by the residue of auxiliary materials or brazing materials in the channels. Further, in this embodiment, the cold plate upper shell 21 is formed by laser cutting, the cold plate lower shell 22 is formed by stamping process, the water inlet nozzle 23 and the water outlet nozzle 24 are formed by turning, and the water inlet nozzle 23 and the water outlet nozzle 24 are both welded to the front end of the housing.

[0033] In this embodiment, the liquid-cooled heat dissipation plate structure of the multi-hard disk further includes a heat conduction pad 26, which is arranged at the upper end of the cold plate upper shell 21 to conduct the heat in the hard disk into the cold plate structure. The hard disk is in full contact with the cold plate upper shell 21 through the heat conduction pad 26, and the heat generated by the hard disk during operation is continuously transmitted to the cold plate, improving the heat dissipation efficiency.

[0034] It should be noted that the above specific implementation manners are only the preferred embodiments of the present invention and the applied technical principles. Within the technical scope disclosed by the present invention, any changes, modifications, substitutions, combinations, and simplifications made by those skilled in the art without departing from the spirit and principles of the present invention should be equivalent replacement methods and should be covered by the protection scope of the present invention.

Claims

1. A liquid-cooled heat dissipation plate structure for multiple hard disks, characterized in that, It includes a cold plate structure, the cold plate structure includes a housing and a cold plate body, the cold plate body is arranged inside the housing, and a plurality of heat dissipation channels are formed by the enclosure of the cold plate body and the inner wall of the housing. The heat dissipation channels are used for the coolant to flow, the heat dissipation channels are communicated with the external cold quantity distribution unit, and the adjacent heat dissipation channels communicate with each other; a plurality of groups of slot avoidance holes are arranged at the upper end of the housing, and the hard disk is connected to the cold plate structure through the plurality of groups of slot avoidance holes for heat exchange.

2. The liquid cooling heat dissipation plate structure of a multi-hard disk according to claim 1, characterized in that The housing includes an upper cold plate shell and a lower cold plate shell, the upper cold plate shell and the lower cold plate shell enclose to form the housing, a plurality of groups of slot avoidance holes are evenly arranged on the upper cold plate shell and the lower cold plate shell, and the slot avoidance hole positions on the upper cold plate shell and the slot avoidance holes on the lower cold plate shell are correspondingly arranged in a penetrating manner. The cold plate body, the upper cold plate shell and the lower cold plate shell jointly enclose to form the heat dissipation channels.

3. The liquid cooling heat dissipation plate structure of a multi-hard disk according to claim 2, characterized in that, The cold plate body includes a manifold plate, a bottom cold plate and vertical cold plates. There are a plurality of groups of vertical cold plates, and the plurality of groups of vertical cold plates are vertically arranged at intervals on the upper end of the bottom cold plate. The manifold plate is vertically connected to the front end of the bottom cold plate, and the manifold plate is also vertically connected to the plurality of groups of vertical cold plates; through holes penetrating the end faces are arranged at the side ends of the vertical cold plates, and the adjacent heat dissipation channels are communicated through the through holes.

4. A liquid-cooled heat dissipation plate structure for multiple hard disks according to claim 3, characterized in that, The manifold plate is connected to the bottom cold plate and the vertical cold plates by threads, and a sealing rubber ring is arranged at the connection.

5. A liquid-cooled heat dissipation plate structure for multiple hard disks according to claim 3, characterized in that, Water inlet nozzles and water outlet nozzles are arranged on the housing. The water inlet nozzles and the water outlet nozzles are both arranged on the same side of the housing, and the water inlet nozzles and the water outlet nozzles are both communicated with the heat dissipation channels through the manifold plate.

6. A liquid-cooled heat dissipation plate structure for multiple hard disks according to claim 2, characterized in that, Copper columns are arranged at the upper end of the lower cold plate shell. There are a plurality of groups of copper columns, and the plurality of groups of copper columns are arranged at intervals in the heat dissipation channels, and the upper and lower end faces of the copper columns are respectively connected to the upper cold plate shell and the lower cold plate shell; after the copper columns are arranged at intervals on the lower cold plate shell, they are welded between the upper cold plate shell and the lower cold plate shell by diffusion welding.

7. The liquid cooling heat dissipation plate structure of a multi-hard disk according to claim 5, characterized in that, The upper cold plate shell is formed by laser cutting, the lower cold plate shell is formed by stamping process, the water inlet nozzles and the water outlet nozzles are formed by turning, and the water inlet nozzles and the water outlet nozzles are both welded to the front end of the housing.

8. The liquid cooling and heat dissipation structure of a multi-hard disk according to claim 2, wherein, The liquid cooling heat dissipation plate structure for multiple hard disks further includes a heat conduction pad, and the heat conduction pad is arranged at the upper end of the upper cold plate shell to conduct the heat in the hard disk into the cold plate structure.

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