Straight-through busbar module and immersion type cooling system

Abstract

The utility model provides a through busbar module and an immersion cooling system. A pass-through busbar module (100) for mounting on a wall of a cooling vessel (10) of an immersion cooling system in a first direction (Y) through the wall to feed power from the outside to an electronic device (12) immersed in a cooling liquid (11) in the cooling vessel, the pass-through busbar module comprising at least two busbars (110), the through busbar module comprises at least two busbars which are arranged one above the other in the thickness direction (Z) and at least partially spaced apart from one another, so that there is a gap (G) between adjacent busbars, and the through busbar module further comprises a sealant (120) which is filled at least in the gap to provide a seal between the respective busbars.

Description

Technical Field

[0001] Embodiments of the present disclosure generally relate to the field of busbar connection, and more particularly, to a through busbar module capable of providing a sealing function, and an immersion cooling system including the through busbar module. Background Art

[0002] With the gradual development of high-density business applications such as artificial intelligence, virtual reality, and smart cities, the amount of computing and the complexity of computing that data centers need to cope with are growing rapidly. Data centers are strategic resources and new infrastructure that support the development of modern economic and social development, used to collect, store, process, and distribute large amounts of data. There are a large number of heat-generating devices such as computing devices and information and communication equipment in data centers, and their operating temperature is an important factor that seriously affects the stability of their working performance. With the continuous increase in data processing volume, the heat dissipation of data centers faces increasingly serious challenges.

[0003] Current cooling solutions can be divided into two categories: gas cooling (air cooling) and liquid cooling. Liquid cooling technology improves cooling efficiency through liquid circulation heat exchange, which can significantly reduce the total energy consumption and carbon dioxide emissions of data centers, and meets my country's low-carbon development requirements. Liquid cooling in data centers can be divided into immersion, cold plate and other main methods. Immersion liquid cooling is a typical direct contact liquid cooling, in which the heat-generating equipment is immersed in the coolant in the cooling container, and the heat generated by the operation of the equipment is removed by the flow circulation of the coolant. In immersion liquid cooling, since the heat-generating equipment is in direct contact with the coolant, the heat dissipation efficiency is higher and the noise is lower, which can solve the problem of higher heat density.

[0004] Immersion liquid cooling can include single-phase liquid cooling and two-phase liquid cooling. Single-phase liquid cooling means that the coolant does not undergo phase change during the circulation heat dissipation process and remains in liquid state. Two-phase liquid cooling means that the coolant in the cooling container undergoes phase change during the circulation heat dissipation process, that is, the heat from the heat-generating device causes the coolant to boil, generating steam, which rises and condenses at the heat exchanger, thereby exponentially increasing the heat transfer efficiency. In liquid cooling technology, electricity is usually fed from a power rack outside the cooling container to the equipment immersed in the coolant in the cooling container through a busbar that passes through the wall of the cooling container. The pressure inside the cooling container is usually higher than the pressure in its surrounding environment, so a good seal is required between the busbar and the wall of the cooling container to prevent coolant leakage. However, conventional busbars or busbar assemblies themselves cannot provide this sealing function. Utility Model Content

[0005] The present disclosure is proposed to overcome at least one of the above and other problems and drawbacks of the prior art.

[0006] According to one aspect of the present disclosure, there is provided a straight-through busbar module, which is used to be installed on the wall of a cooling container of an immersion cooling system in a manner of penetrating the wall in a first direction to feed power from the outside to an electronic device immersed in a coolant in the cooling container, the straight-through busbar module comprising at least two busbars, the at least two busbars being overlapped with each other in a thickness direction and at least partially spaced apart from each other so that there are gaps between adjacent busbars, and the straight-through busbar module also comprises a sealant, which is filled at least in the gap to provide sealing between the busbars.

[0007] In some embodiments, the sealant circumferentially wraps around the at least two busbars on the outside, so that in a cross section of the through busbar module perpendicular to the first direction, the sealant circumferentially wraps around each busbar.

[0008] In some embodiments, the gap is filled with the sealant at least at the position where the through busbar module penetrates the wall.

[0009] In some embodiments, the sealant includes an adhesive that bonds adjacent busbars to each other.

[0010] In some embodiments, each busbar has a generally plate-like shape and includes a middle section and two end sections located on opposite sides of the middle section in a length direction, wherein the length direction is parallel to the first direction, and the two end sections of each busbar are configured to be respectively positioned outside and inside the cooling container when the straight-through busbar module is mounted on the wall.

[0011] In some embodiments, the gap exists between middle sections of adjacent bus bars, the middle sections of the respective bus bars at least partially overlap in the thickness direction, and the sealant fills between at least a portion of the adjacent middle sections.

[0012] In some embodiments, corresponding end sections of adjacent bus bars at least partially abut against each other, so that no gap exists between corresponding end sections of adjacent bus bars.

[0013] In some embodiments, an insulating material layer is disposed between corresponding end sections of adjacent busbars, such that adjacent busbars are electrically isolated from each other by the insulating material layer and the gap.

[0014] In some embodiments, each busbar further includes a transition section extending from the middle section to the end section, such that the middle section is recessed relative to the end section in the thickness direction, so that each busbar has a recess defining the gap.

[0015] In some embodiments, surfaces of the middle section and the end sections of each busbar facing the adjacent busbar are located in different planes perpendicular to the thickness direction.

[0016] In some embodiments, the transition section extends along the thickness direction, or

[0017] The transition section extends obliquely with respect to the thickness direction and the first direction.

[0018] In some embodiments, each of the intermediate segment and the end segments has a flat profile.

[0019] In some embodiments, the at least two busbars include a first busbar, a second busbar, a third busbar, and a fourth busbar stacked in sequence in the thickness direction; the first busbar includes a first middle section, two first end sections located on opposite sides of the first middle section in the length direction, and a first transition section extending from the first middle section to the first end section; the second busbar includes a second middle section, two second end sections located on opposite sides of the second middle section in the length direction, and a second transition section extending from the second middle section to the second end section, the second middle section is spaced apart from the first middle section in the thickness direction, and the second end section abuts against the corresponding first end section The third busbar comprises a third middle section, two third end sections located on opposite sides of the third middle section in the length direction, and a third transition section extending from the third middle section to the third end sections, the third middle section is spaced apart from the second middle section in the thickness direction, and the third end sections abut against the corresponding second end sections; the fourth busbar comprises a fourth middle section, two fourth end sections located on opposite sides of the fourth middle section in the length direction, and a fourth transition section extending from the fourth middle section to the fourth end sections, the fourth middle section is spaced apart from the third middle section in the thickness direction, and the fourth end sections abut against the corresponding third end sections.

[0020] In some embodiments, when the first bus bar, the second bus bar, the third bus bar, and the fourth bus bar are stacked on each other, the first middle section and the second middle section are recessed in the same direction, and the third middle section and the fourth middle section are recessed in another direction opposite to the first middle section and the second middle section.

[0021] In some embodiments, the angle at which the second transition section is inclined relative to the thickness direction is greater than the angle at which the first transition section is inclined relative to the thickness direction, and the angle at which the third transition section is inclined relative to the thickness direction is greater than the angle at which the fourth transition section is inclined relative to the thickness direction.

[0022] In some embodiments, the through busbar module also includes: a first insulating material layer, which is at least arranged between the first end section and the corresponding second end section to electrically isolate the second busbar from the first busbar; a second insulating material layer, which is at least arranged between the second end section and the corresponding third end section to electrically isolate the third busbar from the second busbar; and a third insulating material layer, which is at least arranged between the third end section and the corresponding fourth end section to electrically isolate the fourth busbar from the third busbar.

[0023] In some embodiments, the through-busbar module further includes a mounting panel, the mounting panel being formed with a through hole, the at least two busbars being adapted to pass through the through hole so as to be partially positioned within the cooling container, and the sealant further fills a gap between an inner wall of the mounting panel defining the through hole and the at least two busbars.

[0024] In some embodiments, the mounting panel is formed as at least a part of the wall of the cooling container, or the mounting panel is adapted to be removably mounted to the wall of the cooling container.

[0025] In some embodiments, the mounting panel includes a plate-shaped panel body and a cylindrical structure extending from the panel body in the first direction, the cylindrical structure defines the through hole, and the sealant is filled between the inner wall of the cylindrical structure and the at least two bus bars to seal the gap between the cylindrical structure and the at least two bus bars.

[0026] In another aspect of the present disclosure, an immersion cooling system is provided, comprising: a cooling container, a wall of which is formed with a through hole; a cooling liquid contained in the cooling container, in which the electronic equipment is suitable for being immersed; and a straight-through busbar module described in any embodiment of the present disclosure, wherein the straight-through busbar module is partially inserted through the through hole and is configured to feed power from the outside to the electronic equipment immersed in the cooling liquid, wherein the gap between the straight-through busbar module and the wall is sealed by the sealant. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and other aspects, features and advantages of various embodiments of the present disclosure will become more apparent from the following detailed description taken in conjunction with the accompanying drawings, in which:

[0028] Figure 1 is a block diagram schematically illustrating a configuration of an immersion cooling system according to an exemplary embodiment;

[0029] Figure 2 is a perspective view schematically showing the structure of a through busbar module according to an exemplary embodiment of the present disclosure;

[0030] Figure 3 is a top view schematically showing the structure of a through busbar module according to an exemplary embodiment of the present disclosure;

[0031] Figure 4 is a side view schematically showing the structure of a through busbar module according to an exemplary embodiment of the present disclosure;

[0032] Figure 5 is a perspective view schematically showing the structure of a through busbar module according to an exemplary embodiment of the present disclosure, wherein a mounting panel is removed;

[0033] Figure 6 is a perspective view schematically showing the structure of a mounting panel of a through busbar module according to an exemplary embodiment of the present disclosure;

[0034] Figure 7 is a through busbar module according to an exemplary embodiment of the present disclosure, along Figure 3 A cross-sectional view taken along line A-A' in FIG.

[0035] Figure 8 is a schematic diagram showing a through busbar module according to an exemplary embodiment of the present disclosure. Figure 7 A partial enlarged view of the structure of the portion shown in the dotted circle. DETAILED DESCRIPTION

[0036] The embodiments of the present disclosure will be described in detail below in conjunction with the accompanying drawings. In this specification, the same or similar parts are indicated by the same or similar figure numbers. The following description of the various embodiments of the present disclosure with reference to the accompanying drawings is intended to illustrate the overall concept of the present disclosure and should not be construed as a limitation of the present disclosure.

[0037] In addition, in the detailed description below, for ease of explanation, many specific details are set forth to provide a comprehensive understanding of the embodiments of the present disclosure. However, it is apparent that one or more embodiments may be implemented without these specific details. In other cases, well-known structures and devices are embodied in a schematic manner to simplify the accompanying drawings.

[0038] In the following detailed description, directional terms such as "front", "back", "up", "down", "top", "bottom", "left", "right", "upper" and "lower", "inside" and "outside" are defined according to the accompanying drawings, but the shape and position of the components are not limited by these terms and can be adjusted according to actual applications.

[0039] In addition, the terms used herein are used to describe exemplary embodiments and are not intended to limit and / or constrain the present disclosure. Unless the context clearly indicates otherwise, the singular forms of "one", "a", "said", "the" are also intended to include plural forms. In the present disclosure, "include", "comprise", "include", "have" and similar terms are used to list features, quantities, steps, operations, elements, parts, or combinations thereof, but do not exclude the presence or addition of one or more of the features, quantities, steps, operations, elements, parts, or combinations thereof.

[0040] Although the terms "first", "second", etc. may be used herein to describe a variety of different elements, these elements should not be limited by these terms. These terms are only used to distinguish one element from another element. For example, without departing from the scope of the present disclosure, a first element may be referred to as a second element, and a second element may be referred to as a first element. The term "and / or" includes multiple combinations of associated items or any one of a plurality of associated items.

[0041] Figure 1 The main configuration of an exemplary immersion liquid cooling system is shown, which can be used to cool various heat-generating devices arranged in data centers, computing centers, computer rooms, vehicles, power grid systems, radar systems, etc., for example, electronic devices such as servers, storage devices, network devices, computing devices, power supply equipment, etc.

[0042] Immersion liquid cooling systems can include single-phase liquid cooling systems and two-phase liquid cooling systems. Figure 1 The configuration of a two-phase immersion liquid cooling system for cooling an electronic device 12 is schematically shown, which mainly includes a cooling container 10, a cooling liquid 11 contained in the cooling container 10 and a heat exchanger 13 arranged in the cooling container 10. The heat exchanger 13 may include a condenser. The electronic device 12 is immersed in the cooling liquid 11. The heat from the electronic device 12 causes the cooling liquid 11 to boil and generate steam. The steam rises and condenses at the heat exchanger 13. The heat exchanger 13 transfers the heat to the outside through a heat exchange medium (such as water).

[0043] In the immersion liquid cooling system, a through busbar module 100 is also provided. The through busbar module 100 can be installed on the wall of the cooling container 10 in a manner of penetrating the wall in the first direction Y. For example, the through busbar module 100 can be partially inserted through a through hole (not shown) in the wall forming the cooling container 10 to feed power from the outside, such as from an external power supply rack 20, to the electronic device 12 immersed in the coolant 11. The pressure in the cooling container 10 is usually higher than the pressure in its surrounding environment, so it is necessary to have a good seal between the through busbar module 100 and the wall of the cooling container 10 to avoid leakage of the coolant. In a conventional through busbar module, a plurality of busbars are stacked together without gaps, wherein an insulating material layer, such as a polyester film or a Mylar sheet, is sandwiched between the busbars during stacking, but bubbles are inevitably generated in the insulating material layer during the stacking process, resulting in a weakened seal between the busbars.

[0044] In an exemplary embodiment of the present disclosure, as described below, the through busbar module 100 itself has a sealant, which can seal the gap between the through busbar module 100 and the wall of the cooling container 10 to provide a good seal between the two. It can be understood that the through busbar module and the immersion liquid cooling system provided by the present disclosure can also be applied to single-phase cooling or other liquid cooling systems.

[0045] Figure 2-8 The structure of a straight-through busbar module according to an exemplary embodiment of the present disclosure is schematically shown. The straight-through busbar module 100 may be a laminated structure, including at least two busbars 110 for transmitting electric power, the busbars also referred to as busbars, busbars, etc., made of conductive materials such as copper, aluminum, etc., or may have a conductive coating, and the busbars 110 may be electrically and mechanically connected to an external power source (such as a power supply rack 20) ​​and an electronic device 12 (or its electrical connector) through a fastening assembly 140. In an exemplary embodiment of the present disclosure, the busbars 110 are (at least partially) stacked or overlapped with each other in a thickness direction Z (which is, for example, perpendicular to the first direction Y), and are at least partially spaced apart from each other, so that a gap G is formed or defined between adjacent busbars 110. As an example, each busbar 110 can have a generally plate-like or sheet-like shape as a whole, with a length extending in a first direction Y and a width extending in a second direction X perpendicular to the first direction Y, the first direction Y being parallel to the length direction of the busbar or may also be referred to as the length direction of the busbar in this article, and the individual busbars 110 are at least partially superimposed or stacked face to face with each other in the thickness direction Z.

[0046] As shown in the figure, the through busbar module 100 also includes a sealant 120, which can be filled at least in the gap G to provide a seal between each busbar 110, so that after the through busbar module 100 is installed on the wall of the cooling container 10, the coolant 11 in the cooling container 10 cannot leak to the outside through the gap between the busbars 110. Thus, compared with the conventional through busbar module stacked without gaps, the through busbar module according to the exemplary embodiment of the present disclosure has a gap between adjacent busbars 110, which facilitates filling the gap with sealant 120 or sealing material, thereby providing a good seal between each busbar. As an example, the sealant 120 may include an adhesive that bonds the adjacent busbars 110 to each other, such as an epoxy resin adhesive.

[0047] In an exemplary embodiment of the present disclosure, Figure 2 , 5 As shown in Figures 7 and 8, the sealant 120 circumferentially wraps each busbar 110 on the outside, so that in the cross section of the through busbar module 100 perpendicular to the first direction Y, the sealant 120 circumferentially wraps each busbar 110 to form a sealed barrier for preventing leakage of the coolant. The sealant 120 fills the gap G at least at the position where the through busbar module 100 passes through the wall of the cooling container 10, and fills the gap between the through busbar module 100 and the wall of the cooling container 10 at the through hole, that is, seals the through hole (not shown) formed on the wall, so that after the through busbar module 100 is partially inserted through the through hole, the coolant in the cooling container 10 will not leak to the outside through the through hole.

[0048] The through busbar module 100 may include two or more stacked busbars. In the illustrated embodiment, the through busbar module 100 includes four busbars stacked in the thickness direction Z, but the present disclosure is not limited thereto. Figure 2-5 As shown in Figures 7 and 8, at least two busbars 110 of the straight-through busbar module 100 include a first busbar 111, a second busbar 112, a third busbar 113 and a fourth busbar 114 stacked in sequence in the thickness direction Z, and gaps G are formed or defined between the first busbar 111 and the second busbar 112, between the second busbar 112 and the third busbar 113, and between the third busbar 113 and the fourth busbar 114, respectively, so as to partially fill the gaps G with sealant 120.

[0049] In an exemplary embodiment of the present disclosure, each busbar (110; 111, 112, 113, 114) includes a middle section and two end sections located on opposite sides of the middle section in the length direction, and in a state where the through busbar module 100 is installed on the wall (through hole) of the cooling container 10 in a through manner, the middle section of each busbar (110; 111, 112, 113, 114) is partially inserted through the wall (through hole) of the cooling container 10, and the two opposite end sections of each busbar 110 are respectively positioned outside and inside the cooling container 10, and the fastening assembly 140 is arranged in the end section. As an example, as Figure 2 , 4 As shown in FIG. 5 , the fastening assembly 140 may include a bolt 141, a fixing cap 142 for fixing the bolt 141 to the busbar (or its end section), and a nut 143 connected to the bolt 141, through which a connector (not shown) electrically connected to an external power source (such as a power supply rack 20) ​​and an electronic device 12 may be pressed against the busbar 110 (or its end section) to establish a reliable electrical connection between the connector and the busbar. In some examples, some fixing caps 142 may be positioned between adjacent busbars and are therefore electrically isolated from the busbars.

[0050] In the illustrated embodiment, the middle sections of the respective bus bars (110; 111, 112, 113, 114) at least partially overlap in the thickness direction, for example, the centers of the middle sections of the respective bus bars are aligned, and there is a gap G between at least the middle sections of adjacent bus bars, and the sealant 120 fills between at least a portion of the adjacent middle sections, at least throughout or exceeding the width of the middle sections.

[0051] In some embodiments, corresponding end sections of adjacent busbars (110; 111, 112, 113, 114) may at least partially abut or press against each other (e.g. face to face) so that there is no gap between the corresponding end sections of adjacent busbars to provide further sealing. Figure 8 As shown, an insulating material layer (161, 162, 163) is provided between the corresponding end sections of adjacent busbars, so that the adjacent busbars are electrically isolated or insulated from each other through the insulating material layer and the gap G, thereby not interfering with the power transmission of each busbar. The insulating material layer can be formed (e.g., coated on one of the two surfaces facing each other of the corresponding end sections of the adjacent busbars, and at least provided between the overlapping parts of the end sections in the thickness direction Z. As an example, the insulating material layer can be made of materials such as PET, epoxy resin, etc., and the thickness can be 0.1 mm to 0.5 mm.

[0052] The gaps for filling the sealant can be formed or defined between adjacent busbars in a variety of ways. Figure 2 , 4 , 5 and 8, each busbar (110; 111, 112, 113, 114) may further include a transition section extending from the middle section to the end section, so that the middle section is recessed relative to the end section in the thickness direction Z, so that each busbar (110; 111, 112, 113, 114) has a recessed portion defining a gap G. For example, one surface of each busbar is recessed relative to the end section at the middle section, in other words, the surfaces of the middle section and the end section of each busbar facing the adjacent busbar are offset or located in different planes perpendicular to the thickness direction Z. In the illustrated embodiment, the middle section and / or the end section may have a flat profile, so that each busbar presents a flat profile with a recessed portion as a whole, but the present disclosure is not limited thereto. In other embodiments not shown, each busbar may have a flat plate shape or other shapes, and spacers (not shown) may be provided between adjacent busbars, the spacers having a desired size in the thickness direction Z to define gaps suitable for filling sealants between adjacent busbars. It is understood that the thicknesses of the various busbars may be the same or different.

[0053] In the illustrated embodiment, the transition section of the busbars (110; 111, 112, 113, 114) extends obliquely relative to the thickness direction Z and the first direction Y, and the inclination direction and / or angle of the corresponding transition sections of the adjacent busbars may be different; for example, when the recesses of the adjacent busbars face the same direction, the inclination direction and / or angle of the corresponding transition sections are different. When the recesses of the adjacent busbars face two opposite directions, the inclination direction and / or angle of the corresponding transition sections may be the same or different. In other embodiments not shown, the transition section of the busbar may extend along the thickness direction.

[0054] In such Figure 2-5 In the embodiments shown in 7-8, the lengths of the first busbar 111, the second busbar 112, the third busbar 113 and the fourth busbar 114 decrease successively, and they can be centrally aligned when stacked on each other, so that the straight-through busbar module as a whole presents a step form with a raised middle, but the present disclosure is not limited to this; in other embodiments, according to specific application requirements, the lengths and / or widths of each busbar may be the same or different.

[0055] Reference Figure 2-5and 7-8, the first busbar 111 includes a first middle section 1111, two first end sections 1112 located on opposite sides of the first middle section 1111 in the length direction Y, and a first transition section 1113 extending from the first middle section 1111 to the first end section 1112; the first middle section 1111 is recessed relative to the first end section 1112 in the thickness direction Z, so that the surface of the first middle section 1111 and the surface of the first end section 1112 are located in different planes (for example, perpendicular to the thickness direction Z).

[0056] like Figure 2-5 As shown in Figures 7-8, the second busbar 112 includes a second middle section 1121, two second end sections 1122 located on opposite sides of the second middle section 1121 in the length direction Y, and a second transition section 1123 extending from the second middle section 1121 to the second end sections 1122; the second middle section 1121 is recessed relative to the second end sections 1122 in the thickness direction Z, so that the surface of the second middle section 1121 and the surface of the second end section 1122 are located in different planes (for example, perpendicular to the thickness direction Z); the second middle section Segment 1121 is spaced apart from the first middle section 1111 of the first busbar 111 in the thickness direction Z; the second end section 1123 abuts against the corresponding first end section 1113 of the first busbar 111, and a first insulating material layer 161 is arranged between the second end section 1122 and the first end section 1112 to electrically isolate or insulate the second busbar 112 from the first busbar 111; in the length direction or the first direction Y, the sealant 120 fills at least a portion of the gap G between the first middle section 1111 and the second middle section 1121.

[0057] Still refer to Figure 2-5and 7-8, the third busbar 113 includes a third middle section 1131, two third end sections 1132 located on opposite sides of the third middle section 1131 in the length direction, and a third transition section 1133 extending from the third middle section 1131 to the third end sections 1132; the third middle section 1131 is recessed relative to the third end sections 1132 in the thickness direction Z, so that the surface of the third middle section 1131 and the surface of the third end sections 1132 are located in different planes (e.g., perpendicular to the thickness direction Z); The third middle section 1131 is separated from the second middle section in the thickness direction Z; the third end section 1132 abuts against the corresponding second end section 1132 of the second busbar 112, and a second insulating material layer 162 is arranged between the third end section 1132 and the second end section 1122 to electrically isolate or insulate the third busbar 113 from the second busbar 112; in the length direction or the first direction Y, the sealant 120 fills at least a portion of the gap G between the second middle section 1121 and the third middle section 1131.

[0058] like Figure 2-5 As shown in Figures 7-8, the fourth busbar 114 includes a fourth middle section 1141, two fourth end sections 1142 located on opposite sides of the fourth middle section 1141 in the length direction, and a fourth transition section 1143 extending from the fourth middle section 1141 to the fourth end section 1142; the fourth middle section 1141 is recessed relative to the fourth end section 1142 in the thickness direction Z, so that the surface of the fourth middle section 1131 and the surface of the fourth end section 1142 are located in different planes (for example, perpendicular to the thickness direction Z); the fourth middle section Segment 1141 is spaced apart from the third middle section 1131 of the third busbar 113 in the thickness direction Z; the fourth end section 1132 abuts against the corresponding third end section 1132 of the third busbar 113, and a second insulating material layer 162 is arranged between the third end section 1132 and the second end section 1122 to electrically isolate or insulate the fourth busbar 114 from the third busbar 113; in the length direction or the first direction Y, the sealant 120 fills at least a portion of the gap G between the third middle section 1131 and the fourth middle section 1141.

[0059] In the illustrated embodiment, when the first busbar 111, the second busbar 112, the third busbar 113 and the fourth busbar 114 are stacked on each other, the first middle section 1111 and the second middle section 1121 are recessed in the same direction, while the third middle section 1131 and the fourth middle section 1141 are recessed in another direction opposite to the first middle section 1111 and the second middle section 1121, so that the recesses of the first busbar 111 and the second busbar 112 face the same direction, the recesses of the third busbar 113 and the fourth busbar 114 face another opposite direction, and the recess of the second busbar 112 faces the recess of the third busbar 113.

[0060] As described above, based on the different arrangements, orientations and / or thicknesses of the busbars, the inclination directions and / or angles of the corresponding transition sections may be the same or different. Figure 2-5 In the embodiments shown in Figures 7-8, the first busbar 111, the second busbar 112, the third busbar 113 and the fourth busbar 114 may have substantially the same thickness, the second transition section 1123 is inclined at a greater angle relative to the thickness direction Z than the first transition section 1113, or the second transition section 1123 is smaller in the thickness direction Z than the first transition section 1113; the third transition section 1133 is inclined at a greater angle relative to the thickness direction Z than the fourth transition section 1143, or the third transition section 1133 is smaller in the thickness direction Z than the fourth transition section 1143. The embodiments of the present disclosure are not limited to the illustrated inclination directions and / or angles.

[0061] In some exemplary embodiments of the present disclosure, Figure 2-7 As shown, the through bus module may also include a mounting panel 130, the mounting panel 130 is formed with a through hole 131, the through bus module or its stacked busbars (110; 111, 112, 113, 114) are suitable for being inserted through the through hole 131 to be partially positioned in the cooling container 10, and the sealant 120 is also filled in the gap between the inner wall of the mounting panel 130 defining the through hole 131 and the through bus module or its busbars to provide a seal between the through bus module and the inner wall of the mounting panel 130 defining the through hole 131. Exemplarily, the mounting panel 130 may be formed as at least a portion of the wall of the cooling container 10, so that the through hole 131 is formed or is the above-mentioned through hole. Alternatively, the mounting panel 130 is suitable for being detachably mounted to the wall of the cooling container 10. As an example, the mounting panel may be made of stainless steel or other suitable materials, and its thickness may be 0.5 cm to 2 cm.

[0062] In the illustrated embodiment, the mounting panel 130 includes a plate-shaped panel body 132 and a cylindrical structure 133 extending from the panel body 132 (e.g., integrally) in a first direction Y, the cylindrical structure 133 defining or forming a through hole 131. The sealant 120 is also filled between the inner wall of the cylindrical structure 133 and the through busbar module or its busbar (110; 111, 112, 113, 114) to seal the gap between the cylindrical structure 133 and the through busbar module or its busbar. For example, as shown in the figure, the sealant 120 is filled between the outer surface of the first busbar 111 and the inner wall of the cylindrical structure 133, between the outer surface of the fourth busbar 114 and the inner wall of the cylindrical structure 133, and between the side of the through busbar module or its busbar (110; 111, 112, 113, 114) and the inner wall of the cylindrical structure 133. As an example, the sealant can be completely positioned within the cylindrical structure, but the present disclosure is not limited thereto. Depending on the actual application, such as based on sealing or installation requirements, the cylindrical structure can extend a desired length from the panel body, such as 5cm to 20cm, and the cylindrical structure can be suitable for positioning inside or outside the cooling container.

[0063] Although the embodiments of the present disclosure have been shown and described, it will be understood by those skilled in the art that these embodiments may be varied (such as different combinations of embodiments or features) without departing from the principles and spirit of the present disclosure, and the protection scope of the present disclosure is defined by the appended claims and their equivalents. It should also be noted that, unless otherwise indicated, the terms "include", "comprise", "have" used herein do not exclude other elements or steps. In addition, any element number of a claim should not be construed as limiting the protection scope of the present disclosure.

Claims

1. A through busbar module (100) for being installed on a wall of a cooling container (10) of an immersion cooling system in a manner of penetrating the wall in a first direction (Y) to feed power from the outside to an electronic device (12) immersed in a cooling liquid (11) in the cooling container, characterized in that: The through busbar module comprises at least two busbars (110), the at least two busbars being stacked on each other in a thickness direction (Z) and at least partially spaced apart from each other, such that a gap (G) exists between adjacent busbars, and The through busbar module further comprises a sealant (120), which is filled at least in the gap to provide sealing between the busbars.

2. The through busbar module according to claim 1, characterized in that: The sealant circumferentially wraps the at least two busbars on the outside, so that in a cross section of the through busbar module perpendicular to the first direction, the sealant circumferentially wraps each busbar.

3. The through busbar module according to claim 2, characterized in that: The gap is filled with the sealant at least at the position where the through busbar module penetrates the wall.

4. The through busbar module according to claim 2, characterized in that: The sealant includes an adhesive that bonds adjacent busbars to each other.

5. The through busbar module according to claim 2, characterized in that: Each busbar has a generally plate-like shape and includes a middle section and two end sections located on opposite sides of the middle section in a length direction parallel to the first direction, and The two end sections of each busbar are configured to be respectively positioned outside and inside the cooling container in a state in which the through-busbar module is mounted on the wall.

6. The through busbar module according to claim 5, characterized in that: There is a gap between the middle sections of adjacent busbars. The middle sections of the respective busbars at least partially overlap in the thickness direction, and The sealant is filled between at least a portion of adjacent middle sections.

7. The through busbar module according to claim 6, characterized in that: The corresponding end sections of adjacent busbars at least partially abut against each other, so that no gap exists between the corresponding end sections of adjacent busbars.

8. The through busbar module according to claim 7, characterized in that: An insulating material layer is arranged between corresponding end sections of adjacent busbars, so that adjacent busbars are electrically isolated from each other by the insulating material layer and the gap.

9. The through busbar module according to any one of claims 5 to 8, characterized in that: Each busbar further includes a transition section extending from the middle section to the end section, such that the middle section is recessed relative to the end section in the thickness direction, so that each busbar has a recess defining the gap.

10. The through busbar module according to claim 9, characterized in that: The surfaces of the middle section and the end section of each busbar facing the adjacent busbar are located in different planes perpendicular to the thickness direction.

11. The through busbar module according to claim 9, characterized in that: The transition section extends along the thickness direction, or The transition section extends obliquely with respect to the thickness direction and the first direction.

12. The through busbar module according to claim 9, characterized in that: Each of the middle section and the end sections has a flat profile.

13. The through busbar module according to any one of claims 10 to 12, characterized in that: The at least two busbars include a first busbar (111), a second busbar (112), a third busbar (113) and a fourth busbar (114) which are stacked in sequence in the thickness direction, The first busbar (111) comprises a first middle section (1111), two first end sections (1112) located at opposite sides of the first middle section in the length direction, and a first transition section (1113) extending from the first middle section to the first end section. The second busbar (112) comprises a second middle section (1121), two second end sections (1122) located at opposite sides of the second middle section in the length direction, and a second transition section (1123) extending from the second middle section to the second end sections, wherein the second middle section is spaced apart from the first middle section in the thickness direction, and the second end sections abut against the corresponding first end sections. The third busbar (113) includes a third middle section (1131), two third end sections (1132) located on opposite sides of the third middle section in the length direction, and a third transition section (1133) extending from the third middle section to the third end section, the third middle section is spaced apart from the second middle section in the thickness direction, the third end section abuts against the corresponding second end section, and The fourth busbar (114) includes a fourth middle section (1141), two fourth end sections (1142) located on opposite sides of the fourth middle section in the length direction, and a fourth transition section (1143) extending from the fourth middle section to the fourth end section, wherein the fourth middle section is spaced apart from the third middle section in the thickness direction, and the fourth end section abuts against the corresponding third end section.

14. The through busbar module according to claim 13, characterized in that: When the first bus bar (111), the second bus bar (112), the third bus bar (113) and the fourth bus bar (114) are stacked on each other, the first middle section (1111) and the second middle section (1121) are recessed in the same direction, and the third middle section (1131) and the fourth middle section (1141) are recessed in another direction opposite to the first middle section (1111) and the second middle section (1121).

15. The through busbar module according to claim 14, characterized in that: The angle at which the second transition section (1123) is inclined relative to the thickness direction is greater than the angle at which the first transition section (1113) is inclined relative to the thickness direction, and The angle at which the third transition section (1133) is inclined relative to the thickness direction is greater than the angle at which the fourth transition section (1143) is inclined relative to the thickness direction.

16. The through busbar module according to claim 13, characterized in that: The through busbar module also includes: A first insulating material layer (161) disposed at least between the first end section (1112) and the corresponding second end section (1122) to electrically isolate the second busbar from the first busbar; a second insulating material layer (162) disposed at least between the second end section (1122) and the corresponding third end section (1132) to electrically isolate the third busbar from the second busbar; and A third insulating material layer (163) is disposed at least between the third end section (1132) and the corresponding fourth end section (1142) to electrically isolate the fourth busbar from the third busbar.

17. The through busbar module according to any one of claims 1-8, 10-12 and 14-16, characterized in that: The through busbar module further comprises a mounting panel (130), the mounting panel being formed with a through hole (131), the at least two busbars being adapted to pass through the through hole so as to be partially positioned in the cooling container, and The sealant further fills a gap between an inner wall of the mounting panel defining the through hole and the at least two bus bars.

18. The through busbar module according to claim 17, characterized in that: The mounting panel is formed as at least part of the wall of the cooling container, or The mounting panel is adapted to be removably mounted to the wall of the cooling container.

19. The through busbar module according to claim 17, characterized in that: The mounting panel comprises a plate-shaped panel body (132) and a cylindrical structure (133) extending from the panel body in the first direction, the cylindrical structure defining the through hole (131), and The sealant is filled between the inner wall of the cylindrical structure and the at least two bus bars to seal the gap between the cylindrical structure and the at least two bus bars.

20. An immersion cooling system comprising: A cooling container (10), wherein a through hole is formed in a wall of the cooling container; and a cooling liquid (11) contained in the cooling container, the electronic device (12) being adapted to be immersed in the cooling liquid (11), Characterized in that the immersion cooling system also includes: The straight-through busbar module according to any one of claims 1 to 19, wherein the straight-through busbar module is partially inserted through the through hole and is configured to feed power from the outside to an electronic device immersed in the coolant, wherein a gap between the straight-through busbar module and the wall is sealed by the sealant.

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