KR-20260067690-A - Immersion Cooling Unit

KR20260067690AKR 20260067690 AKR20260067690 AKR 20260067690AKR-20260067690-A

Abstract

The present invention provides an immersion cooling unit comprising: a cooling tank that contains a cooling solution at a certain level in an internal space in which a plurality of electronic devices are housed; a discharge box provided on one side of the upper portion of the cooling tank, which collects the cooling solution introduced from the internal space of the cooling tank and discharges it to the outside; a distribution plate provided on the bottom of the cooling tank, which sprays the cooling solution introduced from the outside into the internal space of the cooling tank; and a cooling solution cooling means connected to the discharge box and the distribution plate by a line through which the cooling solution flows, which receives the cooling solution discharged from the discharge box, cools it, and then circulates the cooled cooling solution to the distribution plate. The cooling solution introduced into the cooling tank is uniformly sprayed along the width of the refrigerant distribution plate to provide a uniform cooling source, the state and contamination of the cooling solution can be checked through a temperature sensor and a water level sensor provided in the cooling tank, and the pump operating rate can be efficiently operated according to the cooling source load by configuring the pumps for forced circulation of the cooling solution in a dual parallel configuration.

Inventors

김현기

Assignees

주식회사 삼화에이스

Dates

Publication Date: 20260513
Application Date: 20241106

Claims (10)

A cooling tank that holds a cooling solution at a certain level in an internal space in which multiple electronic devices are housed; A discharge box provided on one side of the upper portion of the cooling tank, which collects the cooling solution flowing in from the internal space of the cooling tank and discharges it to the outside; A distribution plate provided at the bottom of the cooling tank and spraying a cooling solution introduced from the outside into the internal space of the cooling tank; and A liquid immersion cooling unit comprising a cooling solution cooling means connected to the above-mentioned discharge box, distribution plate, and a line through which a cooling solution flows, wherein the cooling solution discharged from the above-mentioned discharge box is introduced and cooled, and the cooled cooling solution is circulated to the above-mentioned distribution plate.
In claim 1, The above cooling solution is A liquid immersion cooling unit characterized by cooling an electronic device housed in the internal space of the cooling tank through heat exchange while circulating to a discharge box provided on one side of the upper part of the cooling tank by spraying along the width of the distribution plate provided at the bottom of the cooling tank.
In claim 2, The above distribution plate is A liquid immersion cooling unit characterized by having an upper surface area that extends along the horizontal or vertical length of the bottom surface of the cooling tank, and having ejection holes formed at regular intervals along the upper surface area for ejecting a cooling solution.
In claim 1, The above discharge box is A liquid immersion cooling unit characterized by collecting a cooling solution that overflows beyond a partition wall disposed between the internal space of the cooling tank.
In claim 1, Provided on one side of the interior of the above cooling tank, A liquid immersion cooling unit comprising a temperature sensor for measuring the temperature of a cooling solution contained in the internal space of the above-mentioned cooling tank.
In claim 5, The above temperature sensor is A liquid immersion cooling unit characterized by the temperature detection unit being arranged in a continuous, repeating 'L' shape along the upper and lower directions of one inner surface of the cooling tank, and measuring the temperature or average temperature of the cooling solution contained in the internal space of the cooling tank.
In claim 1, Provided in the internal space of the above cooling tank, A liquid immersion cooling unit comprising a level sensor for detecting the level of a cooling solution contained in the internal space of the above-mentioned cooling tank.
In claim 1, Provided in the internal space of the above discharge box, A liquid immersion cooling unit comprising a level sensor for detecting the level of a cooling solution contained in the internal space of the discharge box.
In claim 1, The above refrigerant cooling means A filter provided on a line through which a cooling solution circulates to remove particles contained in the cooling solution, and A liquid immersion cooling unit comprising a pump that is provided on a line through which a cooling solution circulates and forcibly circulates the cooling solution along the line.
In claim 9, The above pump is A liquid immersion cooling unit characterized by two units being connected in a redundant manner.

Description

Immersion Cooling Unit The present invention relates to an immersion cooling unit, and more specifically, to an immersion cooling unit that maintains an oil-based cooling solution at a certain level, immerses an electronic device (server) inside the solution, and dissipates heat through the circulation of the cooling solution. Generally, with the development of the IT industry, public institutions and large corporations are building large-scale IT infrastructure to provide various IT services. For example, servers are installed to support file management, data storage, and program operation, or to share hardware resources such as fax machines, printers, and equipment; and multiple clients, or computer terminals, are installed to connect to these servers via a LAN. The servers establish a network by connecting computers and provide a large amount of storage space. However, if the server is overloaded and overheats, the heat sink or cooling fan may not be able to sufficiently cool the CPU and GPU, and this may cause the server to malfunction or crash. To solve these problems, most internet data centers install and operate separate temperature and humidity control equipment in server rooms where server racks are installed. However, large-scale data centers require a large number of temperature and humidity control devices, and operating them consumes significant costs and energy. In addition to these computer servers, storage and network switches used in data centers, as well as batteries used in various Energy Storage Systems (ESS), generate a significant amount of heat during operation; therefore, a separate cooling system must be installed to dissipate this heat. Systems capable of more efficiently cooling the heat generated by the aforementioned heat generation unit have already been introduced, primarily in large-scale data centers. For example, Public Patent No. 10-2011-9848 (January 31, 2011) introduces a cooling system for a data center suitable for cooling the interior of a data center by comparing the temperature and humidity of the internal air and the external air of the data center and accordingly introducing external air into the interior or circulating internal air. As mentioned above, existing data centers operated using air cooling, but recently, data centers of leading global companies have begun to actively adopt liquid immersion cooling. Due to recent advancements in IT chips, the air cooling efficiency of high-heat, high-density servers is declining, and in the case of some IT chips, the heat load has reached a level where it can no longer be removed by air cooling alone. In the case of conventional technology, it is configured to remove the load from local high-heat servers, but it is insufficient to cool rack-unit servers configured with high heat and high density. In addition, in the case of air cooling, there was a problem in that the energy consumption for cooling servers was so high that it accounted for 30% of the data center's energy consumption, and air cooling requires very large air conditioners, which occupy a large area to accommodate the cooling equipment. Consequently, the configuration of piping and air ducts was very complex, and there was a problem in that a significant number of components were required to configure the facilities. For prior art, refer to Registered Patent No. 10-2271051 (June 24, 2021). FIG. 1 is an exemplary diagram showing a liquid immersion cooling unit according to an embodiment of the present invention. FIG. 2 is an exemplary diagram showing a cooling tank equipped with a temperature sensor according to an embodiment of the present invention. FIG. 3 is an exemplary diagram showing a switch hub mounting module provided on the outer surface of a cooling tank according to an embodiment of the present invention. FIG. 4 is an exemplary diagram showing a liquid immersion cooling unit equipped with a water level sensor according to an embodiment of the present invention. FIG. 5 is an exemplary diagram showing a filter of a liquid immersion cooling unit according to an embodiment of the present invention. FIG. 6 is an exemplary diagram showing the housing of a liquid immersion cooling unit according to an embodiment of the present invention. FIG. 7 is an exemplary diagram showing a state in which a pump for forcibly circulating a cooling solution according to an embodiment of the present invention is connected in a redundant manner. Hereinafter, preferred embodiments according to the present invention will be described in detail with reference to the attached drawings. Prior to this, terms and words used in this specification and claims should not be interpreted as being limited to their ordinary or dictionary meanings, and should be interpreted in a meaning and concept consistent with the technical spirit of the present invention, based on the principle that the inventor can appropriately define the concept of the terms to best describe his invention. The