Liquid cooling box

Abstract

The utility model provides a liquid cooling box, which comprises a box body and a lower shell, and is characterized in that the box body comprises an inner shell and a flow channel shell arranged on the outer side of the inner shell; the flow channel shell is formed by bending a flow channel plate, a plurality of communicated flow channels are formed in the flow channel shell at intervals, the inner shell is formed by bending a bottom plate and is arranged below the flow channel shell in an attached mode to form a flowing cavity with the flow channels, and a first cooling medium flows in the flowing cavity; the inner shell is provided with a containing cavity with a middle opening, and a heating element is arranged in the containing cavity; the lower shell seals the containing cavity, a second cooling medium is stored in the containing cavity, and the heating element is immersed in the second cooling medium. According to the liquid cooling box provided by the utility model, the heat dissipation box body is formed by bending the runner plate, the heat dissipation area is increased, two different cooling media are used in the heat dissipation process of the liquid cooling box, and the liquid cooling box has the advantage of high heat dissipation efficiency.

Description

Technical Field

[0001] This utility model relates to the field of new energy heat dissipation, and in particular to a liquid cooling box. Background Technology

[0002] In existing technologies, heat dissipation for energy storage devices is commonly categorized into three modes: cold plate, spray, and immersion. Immersion cooling devices dissipate heat by placing the energy storage module in a cooling medium, allowing heat exchange through the medium. Compared to cold plate and spray cooling methods, immersion cooling offers advantages such as higher heat transfer efficiency and more uniform temperature distribution. Current immersion cooling devices typically use a closed cooling box with a cooling medium that circulates and exchanges heat through inlets and outlets to dissipate heat from heat-generating components. Current immersion cooling boxes on the market often use liquid-cooled plates at the bottom of the box or at the intervals between energy storage devices, supplemented by a cooling medium. However, circulating the coolant within the cooling box is costly, while using liquid-cooled plates at the intervals provides poor heat dissipation. Therefore, there is an urgent need for a heat dissipation device with high efficiency and low cost to improve the performance and reliability of energy storage devices. Utility Model Content

[0003] The purpose of this invention is to provide a liquid cooling box that solves the problems of low heat dissipation efficiency and poor heat dissipation effect in existing immersion heat dissipation devices. At the same time, the liquid cooling box provided by this invention can dissipate heat evenly, with low heat dissipation cost and high safety and reliability.

[0004] According to one aspect of the present invention, a liquid cooling box is provided, comprising: a box body and a lower shell, the box body including an inner shell and a flow channel shell disposed outside the inner shell; the flow channel shell is bent by a flow channel plate, and the flow channel shell is provided with multiple interconnected flow channels at intervals; the inner shell is bent by a bottom plate and is fitted below the flow channel shell to form a flow cavity with the flow channels, and a first cooling medium flows in the flow cavity; the inner shell has a receiving cavity with a central opening, and a heating element is disposed in the receiving cavity; the lower shell closes the receiving cavity, and a second cooling medium is stored in the receiving cavity, and the heating element is immersed in the second cooling medium.

[0005] The flow channel plate and the bottom plate are bent to form a cooling box. The second cooling medium stored in the cavity in the middle of the box serves as a heat transfer medium, conducting heat to the box. Heat is then dissipated by the first cooling medium in the flow cavity of the box, thereby achieving uniform heat dissipation and improving heat dissipation efficiency.

[0006] Preferably, with the length direction of the housing as the longitudinal direction, the housing includes a first side wall arranged in the longitudinal direction, a second side wall arranged in the transverse direction, and a first cooling surface, wherein the first side wall and the second side wall are welded together.

[0007] Preferably, the first sidewall forms a chamfer α with the first cooling surface, and the bending radius R1 of the inner shell is 2mm to 4.5mm.

[0008] Preferably, the flow channel housing is connected to a refrigerant exchange assembly, and the refrigerant exchange assembly is in communication with the flow channel.

[0009] Preferably, with the axis where the refrigerant exchange component is located as the axis of symmetry, the flow channels are symmetrically arranged on the flow channel housing; the flow channels include longitudinal flow channels parallel to the length direction and transverse flow channels parallel to the width direction.

[0010] Preferably, the refrigerant exchange assembly includes an inlet pipe and an outlet pipe; the inlet pipe and the outlet pipe are respectively connected to a transverse flow channel disposed on the second side wall.

[0011] Preferably, the diameter d1 of the inlet pipe is smaller than the diameter d2 of the outlet pipe.

[0012] Preferably, the inlet pipe and the outlet pipe are integrated on the mounting base, and the mounting base is welded to the mounting base; the end of the inlet pipe that communicates with the transverse flow channel is higher than the mounting base, and the end of the outlet pipe that communicates with the transverse flow channel is higher than the mounting base; the inlet pipe and the outlet pipe are respectively connected to two adjacent transverse flow channels.

[0013] Preferably, the inlet pipe and the outlet pipe are further provided with a first tank and a second tank on the mounting base. The first tank is connected to the inlet pipe, and the second tank is connected to the outlet pipe. The diameter d3 of the first tank is larger than the diameter d1 of the inlet pipe, and the diameter d4 of the second tank is larger than the diameter d4 of the outlet pipe. The first tank and the second tank are used to connect a refrigeration exchange device.

[0014] Preferably, the housing includes a first frame arranged around its perimeter, and the lower housing includes a second frame arranged around its perimeter, the second frame being welded to the first frame.

[0015] The liquid cooling box provided by this utility model stores a second cooling medium in the cavity, and heat is conducted by the second cooling medium. The first cooling medium flowing in the flow cavity of the box dissipates heat from the heat-generating element. This mode changes the shortcomings of the original immersion cooling box, which has a small heat dissipation area and low heat dissipation efficiency. By bending the liquid cooling plate to form a heat dissipation box, the heat dissipation area of ​​the liquid cooling box is increased. At the same time, two different cooling media are used, which further reduces the cost of the immersion heat dissipation method during the heat exchange process. It has the advantages of high heat dissipation efficiency and high reliability. Attached Figure Description

[0016] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments:

[0017] Figure 1 This is a schematic diagram of a liquid cooling box provided for this embodiment.

[0018] Figure 2 A schematic diagram of a liquid cooling box structure provided for this embodiment. Figure 1 .

[0019] Figure 3 A schematic diagram of a liquid cooling box structure provided for this embodiment. Figure 2 .

[0020] Figure 4 A top view of a liquid cooling box body provided by this utility model Figure 1 .

[0021] Figure 5 for Figure 4 A cross-sectional view along the AA1 direction.

[0022] Figure 6 for Figure 4 A cross-sectional view along the BB1 ​​direction.

[0023] Figure 7 for Figure 6 Enlarged view of part A.

[0024] Explanation of icon numbers:

[0025] 100-Liquid cooling box; 1-Box body; 11-Inner shell; 110-Base plate; 111-Flow chamber; 112-Receiving chamber; 12-Flow channel shell; 120-Flow channel plate; 121-Flow channel; 121a-Longitudinal flow channel; 121b-Transverse flow channel; 122-First frame; 101-First side wall; 102-Second side wall; 103-First cooling surface; 2-Lower shell; 21-Storage tank; 22-Second frame; 3-Refrigerant exchange assembly; 31-Mounting base; 311-Inlet pipe; 312-Outlet pipe; 313-First tank; 314-Second tank; 4-Heating element. Detailed Implementation

[0026] 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.

[0027] To keep the drawings concise, only the parts relevant to this invention are shown schematically in each figure, and they do not represent the actual structure of the product. Furthermore, for ease of understanding, in some figures, only one of the components with the same structure or function is schematically depicted, or only one is labeled. In this document, "one" not only means "only one," but can also mean "more than one."

[0028] It should also be further understood that the term “and / or” as used in this application specification and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0029] In this document, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0030] Furthermore, in the description of this application, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0031] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the specific implementation methods of this utility model will be described below with reference to the accompanying drawings. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings and other implementation methods can be obtained based on these drawings without any creative effort.

[0032] See Figures 1 to 7As shown, this embodiment provides a liquid-cooled box for heat dissipation, including a box body 1 and a lower shell 2. The box body 1 includes an inner shell 11 and a flow channel shell 12. The flow channel shell 12 is disposed outside the inner shell 11 and is formed by bending a flow channel plate 120. The inner shell 11 is formed by bending a bottom plate 110. Multiple interconnected flow channels 121 are spaced apart on the flow channel shell 12, and a flow cavity 111 is formed between the flow channels 121 and the inner shell 11. A first cooling medium flows in the flow cavity 111 to dissipate heat from the box body 1. The inner shell 11 has a receiving cavity 112 with a central opening. A heating element 4 is placed in the receiving cavity 112, and a second cooling medium is disposed in the receiving cavity 112. The heating element 4 is immersed in the second cooling medium and conducts heat to the box body 1 through the second cooling medium, and then dissipates heat through the first cooling medium. The lower shell 2 is connected to the box body 1 and seals the receiving cavity 112 to prevent leakage of the second cooling medium. In the prior art, the liquid cooling plate is formed by welding the liquid cooling plate and the base plate 110 together, and then combining the liquid cooling plate with the housing 1 to form the heat dissipation housing 1. See [link to previous text]. Figure 3 In this embodiment, the liquid-cooled housing 1 is formed by bending a liquid-cooling plate, allowing the entire housing 1 to dissipate heat and thus increasing the heat dissipation area. With the length of the housing 1 as its longitudinal direction, the housing 1 includes a first sidewall 101 arranged longitudinally and a second sidewall 102 arranged transversely. The first sidewall 101, the second sidewall 102, and the first cooling surface 103 are bent in the same direction. The two sides of the second sidewall 102 are welded to the two sides of the first sidewall 101, thereby forming the housing 1. It should be noted that the lower housing 2 in this embodiment is merely a name definition for a liquid-cooled housing component, not a description of its location or installation relationship. The lower housing 2 has a storage groove 21 with a central opening on one side opposite to the receiving cavity 112 of the enclosed inner housing 11, to increase the storage capacity of the second cooling medium and improve the heat exchange efficiency of the heating element 4.

[0033] In the embodiment, the housing 1 has flow channels 121 uniformly and continuously distributed on the first sidewall 101, the second sidewall 102, and the first cooling surface 103. This allows the first cooling medium to flow on the housing 1, thereby achieving uniform heat dissipation. However, since the housing 1 is constructed by bending and welding, this bending method can lead to blockage of the flow cavity 111 between the flow channels 121 and the inner shell 11. Consequently, the first cooling medium cannot flow smoothly in the housing 1, resulting in excessively high local temperatures and affecting the performance of the heating element 4. In this embodiment, to avoid blockage of the flow cavity 111, the first sidewall 101 and the second sidewall 102 are bent with the first cooling surface 103 to form a chamfer α. Specifically, when the first sidewall 101 is bent relative to the first cooling surface 103, the bending radius R1 of the inner shell 11 is between 2mm and 4.5mm. If the bending radius R1 of the inner shell 11 is less than 2mm, the flow channel 121 at the bend of the first sidewall 101 and the first cooling surface 103 is easily blocked between the inner shell 11 and the flow channel 121. The first cooling medium cannot pass through the flow channel 121 at this point, and the local flow channel 121 will be blocked. Excessive internal temperature affects heat dissipation performance and the effectiveness of the heating element 4. Since the heating element 4 is housed within the cavity 112 and all heating elements 4 are of uniform size and specifications, if the bending radius of the inner shell 11 is greater than 4.5 mm, the bending connection area between the first sidewall 101 and the first cooling surface 103 is large. This results in an excessively large gap between the heating element 4 and the first sidewall 101 when the heating element 4 is placed within the cavity 112, affecting the placement and specifications of the heating element 4 within the cavity 112 and wasting space. Similarly, when the second sidewall 102 and the first cooling surface 103 are bent to form a chamfer α, the bending radius R1 of the inner shell 11 is between 2 mm and 4.5 mm.

[0034] It should be noted that, in this embodiment, the first cooling medium for dissipating heat from the housing 1 in the flow cavity 111 can be a gaseous cooling medium or a liquid cooling medium. In a preferred embodiment, the first cooling medium in the flow cavity 111 is a gaseous cooling medium, and the second cooling medium in the receiving cavity 112 is liquid cooling oil. Since a gaseous cooling mode is used in the flow cavity 111, only the first cooling medium in the flow cavity 111 needs to be circulated. Therefore, the liquid-cooled tank in this embodiment can save the energy consumption of the first cooling medium's heat dissipation circulation, improve heat dissipation efficiency, and reduce heat dissipation costs.

[0035] In a specific embodiment, the surface of the housing 1 is uniformly provided with transverse flow channels 121b and longitudinal flow channels 121a. The refrigerant exchange assembly 3 is connected to the flow channel shell 12, that is, the refrigerant exchange assembly 3 is connected to the flow channels 121 on the flow channel shell 12, thereby realizing the circulation of the first cooling medium in the flow cavity 111 and realizing the heat exchange of the housing 1. The refrigerant exchange assembly 3 includes an inlet pipe 311 and an outlet pipe 312. The inlet pipe 311 and the outlet pipe 312 can be connected to the flow channel shell 12 respectively, or the inlet pipe 311 and the outlet pipe 312 can be integrated and then connected to the adjacent flow channels 121 on the flow channel shell 12. In a preferred embodiment, the inlet pipe 311 and the outlet pipe 312 are integrated and disposed on the second side wall 102, and the inlet pipe 311 and the outlet pipe 312 are respectively connected to the transverse flow channels 121b disposed adjacent to each other on the second side wall 102. With the longitudinal axis where the liquid inlet pipe 311 and liquid outlet pipe 312 are located as the axis of symmetry, the flow channel 121 is symmetrically arranged along the length direction on the flow channel housing 12. That is, the longitudinal flow channel 121a is arranged parallel to this axis of symmetry, and the transverse flow channel 121b is arranged perpendicular to this axis of symmetry. When the flow channel on the flow channel housing 12 is fitted with the inner housing 11 to form the flow cavity 111, the first cooling medium can flow smoothly in the transverse flow channel 121b and the longitudinal flow channel 121a, so that the heat dissipation of each part of the box 1 is uniform and the temperature of each part of the box 1 is balanced. To achieve a balance in the heat exchange process within the flow chamber 111, the diameter d1 of the inlet pipe 311 is smaller than the diameter d2 of the outlet pipe 312. The first cooling medium flows into the flow channel cavity from the inlet pipe 311 and out from the outlet pipe 312. In a specific embodiment, the first cooling medium injected into the flow chamber 111 from the inlet pipe 311 is a mixture of gas and liquid. During the process of the first cooling medium absorbing heat from the second cooling medium, the first cooling medium completely vaporizes and flows out from the outlet in a gaseous state. Since the volume of the first cooling medium increases during the change from liquid to gas, to facilitate heat dissipation, the diameter d2 of the outlet pipe 312 should be larger than the diameter d1 of the outlet pipe 312, thereby achieving smooth flow of the first cooling medium within the flow chamber 111.

[0036] In a preferred embodiment, the inlet pipe 311 and the outlet pipe 312 are integrated on the mounting base 31, which is welded to the flow channel housing 12. To ensure reliable heat exchange between the refrigerant exchange assembly 3 and the flow chamber 111, the height of the inlet pipe 311 and the outlet pipe 312 is higher than the mounting plane of the mounting base 31 on the side where the mounting base 31 connects to the flow channel housing 12, so as to facilitate reliable connection between the inlet pipe 311, the outlet pipe 312 and the transverse flow channel 121b. The mounting base 31 is also provided with a first tank 313 and a second tank 314 to facilitate the refrigeration exchange device. Specifically, the first tank 313 is connected to the liquid inlet pipe 311, and the second tank 314 is connected to the liquid outlet pipe 312. Similarly, the diameter d1 of the liquid inlet pipe 311 and the diameter d2 of the liquid outlet pipe 312 are set in a certain relationship. The diameter d3 of the first tank 313 is larger than the diameter d4 of the second tank 314. In order to prevent overflow when the first cooling medium is input or output into the housing 1, the diameter d3 of the first tank 313 is larger than the diameter d1 of the liquid inlet pipe 311, and the diameter d4 of the second tank 314 is larger than the diameter d2 of the liquid outlet pipe 312. By setting the mounting base 31, the inlet pipe 311 and the outlet pipe 312 are integrated, and a stable connection between the inlet pipe 311, the outlet pipe 312 and the refrigeration exchange device is achieved. During the heat dissipation process of the liquid cooling box, the entry and exit of the first cooling medium is reliably guaranteed, thereby ensuring the heat dissipation reliability of the box 1 and further improving the performance of the heating element 4. In addition, mounting holes are respectively provided on the outer side of the first groove 313 and the outer side of the second groove 314 of the mounting base 31 to facilitate the installation and fixing of the refrigeration exchange device.

[0037] To prevent the second cooling medium from overflowing, a first frame 122 is provided around the receiving cavity 112, and a second frame 22 is provided around the lower housing 2. The first frame 122 and the second frame 22 are welded together to improve the airtightness of the second cooling medium stored in the receiving cavity 112. At the same time, the first frame 122 and the second frame 22 also facilitate the installation and fixing of accessories, so as to prevent drilling holes in the main body of the housing 1 or the lower housing 2 from affecting the airtightness.

[0038] The liquid-cooled box provided by this utility model forms a cooling box body 1 by bending the flow channel plate 120 and the bottom plate 110, i.e., bending the liquid-cooled plate structure. It uses two different cooling media to reduce the heat dissipation cost of the heating element 4. The second cooling medium stored in the cavity 112 in the middle of the box body 1 serves as a heat transfer medium, conducting the heat from the heating element 4 to the surface of the box body 1, where it is dissipated by the first cooling medium in the flow cavity 111. This achieves uniform heat dissipation of the box body 1, improving both heat dissipation efficiency and the performance of the heating element 4. The liquid-cooled box provided by this utility model solves the problems of small heat dissipation area and low heat dissipation efficiency in immersion cooling boxes. By bending the liquid-cooled plate to form the heat dissipation box body 1, and using the four sides of the box body 1 as heat dissipation surfaces, the heat dissipation efficiency of the heating element 4 is improved. This further reduces the cost of immersion cooling during heat exchange, offering advantages such as high heat dissipation efficiency and high reliability.

[0039] It will be apparent to those skilled in the art that various modifications and variations can be made to the exemplary embodiments of the present invention without departing from the spirit and scope of the present invention. Therefore, it is intended that the present invention cover modifications and variations falling within the scope of the appended claims and their equivalents.

Claims

1. A liquid cooling box, characterized in that, include: The housing includes an inner shell and a flow channel shell disposed on the outside of the inner shell; The flow channel shell is bent by a flow channel plate, and the flow channel shell is provided with multiple interconnected flow channels at intervals; the inner shell is bent by a bottom plate and is fitted to the bottom of the flow channel shell to form a flow cavity with the flow channels, and a first cooling medium flows in the flow cavity; the inner shell has a receiving cavity with a central opening, and a heating element is disposed in the receiving cavity; The lower housing encloses the receiving cavity, which stores a second cooling medium, and the heating element is immersed in the second cooling medium.

2. A liquid cooling box as described in claim 1, characterized in that, With the length direction of the housing as the longitudinal direction, the housing includes a first side wall arranged in the longitudinal direction, a second side wall arranged in the transverse direction, and a first cooling surface, wherein the first side wall and the second side wall are welded together.

3. A liquid cooling box as described in claim 2, characterized in that, The first sidewall forms a chamfer α with the first cooling surface, and the bending radius R1 of the inner shell is 2mm to 4.5mm.

4. A liquid cooling box as described in claim 3, characterized in that, The flow channel housing is connected to the refrigerant exchange assembly, and the refrigerant exchange assembly is in communication with the flow channel.

5. A liquid cooling box as described in claim 4, characterized in that, With the axis where the refrigerant exchange component is located as the axis of symmetry, the flow channels are symmetrically arranged on the flow channel housing; the flow channels include longitudinal flow channels parallel to the length direction and transverse flow channels parallel to the width direction.

6. A liquid cooling box as described in claim 5, characterized in that, The refrigerant exchange assembly includes an inlet pipe and an outlet pipe; the inlet pipe and the outlet pipe are respectively connected to a transverse flow channel disposed on the second side wall.

7. A liquid cooling box as described in claim 6, characterized in that, The diameter d1 of the inlet pipe is smaller than the diameter d2 of the outlet pipe.

8. A liquid cooling box as described in claim 7, characterized in that, The inlet pipe and the outlet pipe are integrated on the mounting base, which is welded to the flow channel shell. The end of the inlet pipe that communicates with the transverse flow channel is higher than the mounting base, and the end of the outlet pipe that communicates with the transverse flow channel is higher than the mounting base. The inlet pipe and the outlet pipe are respectively connected to two adjacent transverse flow channels.

9. A liquid cooling box as described in claim 8, characterized in that, The inlet pipe and the outlet pipe are further provided with a first tank and a second tank on the mounting base. The first tank is connected to the inlet pipe, and the second tank is connected to the outlet pipe. The diameter d3 of the first tank is larger than the diameter d1 of the inlet pipe, and the diameter d4 of the second tank is larger than the diameter d4 of the outlet pipe. The first tank and the second tank are used to connect a refrigeration exchange device.

10. A liquid cooling box as described in claim 8, characterized in that, The housing includes a first frame arranged around its perimeter, and the lower housing includes a second frame arranged around its perimeter, the second frame being welded to the first frame.

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