Liquid cooling unit cabin, cabin assembly and battery energy storage system

Abstract

The utility model provides a liquid cooling unit cabin, a cabin assembly and a battery energy storage system, and relates to the technical field of batteries. The liquid cooling unit cabin comprises two end pieces, a longitudinal beam and a side wall piece, and the two end pieces are oppositely arranged; the two ends of the longitudinal beams are connected with the two end pieces respectively; the plurality of side wall pieces are located between the two end pieces, and the plurality of side wall pieces are connected with the end pieces and the longitudinal beams so as to define a liquid cooling unit mounting cavity; the side wall piece is provided with a ventilation hole. According to the liquid cooling unit cabin, the ventilation holes are formed in the side wall pieces, so that the heat dissipation efficiency of the liquid cooling module is improved, and the problem that the structural strength of the liquid cooling unit cabin is weakened due to the fact that the ventilation holes are formed in the side wall pieces can be solved by arranging the longitudinal beams.

Description

Technical Field

[0001] The present application relates to the field of battery technology, and in particular to a liquid-cooled unit cabin, cabin components, and a battery energy storage system. Background Art

[0002] A battery energy storage system primarily consists of an energy storage compartment, a liquid cooling unit, batteries, and electrical components. The interior of the energy storage compartment is divided into a battery compartment for batteries and an electrical compartment for electrical components. When the battery energy storage system is in operation, the liquid cooling unit continuously exchanges heat with the batteries and electrical components, releasing heat. Furthermore, as the battery charge and discharge rates increase, the heat generated by the liquid cooling unit also increases. Therefore, to minimize the impact of the liquid cooling unit on the batteries and electrical components, the liquid cooling unit is typically located outside the energy storage compartment. Furthermore, to ensure that the liquid cooling unit meets relevant dust and water resistance requirements, a liquid cooling unit compartment is required. This allows the unit to be placed within the compartment to prevent external dust and air from affecting its normal operation.

[0003] However, due to the large weight of the liquid-cooled unit, this layout method of placing the liquid-cooled unit outside the energy storage cabin has a small ventilation area in order to ensure the bearing strength of the liquid-cooled unit cabin, resulting in poor heat dissipation efficiency of the liquid-cooled unit. Utility Model Content

[0004] The embodiments of the present application provide a liquid cooling unit cabin, cabin assembly, and battery energy storage system, which can improve the problem of poor heat dissipation efficiency of the liquid cooling unit.

[0005] In the first aspect, an embodiment of the present application provides a liquid-cooling unit cabin, which includes end pieces, longitudinal beams and side wall pieces, wherein there are two end pieces, which are arranged opposite to each other; there are multiple longitudinal beams, and the two ends of the multiple longitudinal beams are respectively connected to the two end pieces; there are multiple side wall pieces, and the multiple side wall pieces are located between the two end pieces, and the multiple side wall pieces are connected to the end pieces and the longitudinal beams to define a liquid-cooling unit installation cavity; wherein the side wall pieces are provided with ventilation holes.

[0006] In one embodiment, the longitudinal beam and the end piece define a side wall piece installation portion, and the side wall piece is arranged at the side wall piece installation portion and covers the side wall piece installation portion; wherein at least two side wall pieces are openably connected to the corresponding side wall piece installation portion.

[0007] In one embodiment, in the side wall member that is openably connected to the side wall member mounting portion, one side of the side wall member is hinged to the adjacent longitudinal beam, and the other side of the side wall member is connected to the adjacent longitudinal beam via a bolt.

[0008] In one embodiment, the side wall member includes a plate body and a ventilation net; the plate body is provided with ventilation openings, and the periphery of the plate body is connected to the end member and the longitudinal beam; the ventilation net is arranged in the ventilation openings and covers the ventilation openings, and the mesh holes of the ventilation net are ventilation holes.

[0009] In one embodiment, the end piece located at the lower end of the liquid cooling unit cabin is the first end piece, and the first end piece includes multiple load-bearing beams and multiple connecting beams. The multiple load-bearing beams are arranged in sequence at intervals, and two adjacent load-bearing beams are connected by a connecting beam. The end of the longitudinal beam close to the first end piece is connected to the load-bearing beam adjacent to it.

[0010] In one embodiment, the first end piece also includes a first partition, which is arranged on the side of the load-bearing beam close to the installation cavity of the liquid cooling unit, and / or the first partition is arranged on the side of the load-bearing beam away from the installation cavity of the liquid cooling unit, and the first partition at least covers the gap between the load-bearing beams.

[0011] In one embodiment, one side of the liquid cooling unit cabin is configured to be connected to one side of the energy storage cabin, and the first end piece also includes an end partition, which is arranged at an end of the load-bearing beam away from the energy storage cabin, and the end of the load-bearing beam is arranged opposite to the end partition.

[0012] In one embodiment, one side of the liquid cooling unit cabin is configured to be connected to one side of the energy storage cabin, and an extension end is provided at one end of the load-bearing beam toward the energy storage cabin, extending out of the liquid cooling unit installation cavity, and the extension end is configured to be plugged into the energy storage cabin.

[0013] In one embodiment, a first pipe fixing bracket is provided on the inner wall of the liquid cooling unit installation cavity, a first through groove is provided on one side of the first pipe fixing bracket, and the first through groove is configured to install the pipe of the liquid cooling unit.

[0014] In one embodiment, the end piece located at the upper end of the liquid cooling unit cabin is the second end piece, and the second end piece includes multiple end beams, which are connected end to end in sequence to form a first frame structure, and the end of the longitudinal beam close to the second end piece is connected to the end beam adjacent to it.

[0015] In one embodiment, the second end member further includes a second partition plate, which is disposed at one end of the first enclosing frame structure and covers the inner side of the first enclosing frame structure.

[0016] In one embodiment, the liquid cooling unit installation cavity is a cavity structure with an opening provided on one side, and the opening is configured to abut against the energy storage cabin.

[0017] In one embodiment, the liquid cooling unit cabin further includes a plurality of plug-in beams, one end of each of the plurality of plug-in beams is connected to the longitudinal beam or the end piece, and the other end is configured to be plugged into the energy storage cabin.

[0018] In one embodiment, the liquid cooling unit cabin further includes a reinforcing beam, the end piece has an end surface perpendicular to the longitudinal beam, and the reinforcing beam is arranged between two adjacent longitudinal beams along the periphery of the end surface.

[0019] In a second aspect, an embodiment of the present application provides a cabin assembly, which includes an energy storage cabin and the aforementioned liquid cooling unit cabin, the energy storage cabin having an end plate; the liquid cooling unit cabin is arranged on the end plate.

[0020] In one embodiment, the end plate includes a support beam assembly and a plurality of angle beams, wherein the plurality of angle beams are sequentially connected end to end to form a second frame structure, and the support beam assembly is disposed within the second frame structure;

[0021] Wherein, the liquid cooling unit cabin is connected to the support beam assembly and / or the angle beam.

[0022] In one embodiment, the support beam assembly includes multiple supporting longitudinal beams, multiple supporting transverse beams and multiple supporting diagonal beams. The multiple supporting longitudinal beams and the multiple supporting transverse beams are staggered, and the ends of the multiple supporting longitudinal beams and the multiple supporting transverse beams are connected to the adjacent corner beams. The multiple supporting diagonal beams are arranged in a one-to-one correspondence with the corners of the second frame structure, and one end of the supporting diagonal beam is connected to the corresponding corner, and the other end is connected to the adjacent longitudinal beam.

[0023] In one embodiment, a slot is defined between the supporting longitudinal beam and the adjacent corner beam, and / or a slot is defined between the supporting transverse beam and the adjacent corner beam, and the slot is configured to be plugged into the liquid cooling unit cabin.

[0024] In one embodiment, the end plate further includes a plurality of corner pieces, which are staggeredly distributed with the plurality of corner beams along the circumference of the second frame structure, and both sides of the corner pieces are respectively connected to the ends of the adjacent corner beams.

[0025] In one embodiment, the end plate also includes a cabin partition, which is arranged on a side of the second frame structure close to the liquid cooling unit cabin, and / or the cabin partition is arranged on a side of the second frame structure away from the liquid cooling unit cabin, and the cabin partition covers the gap in the second frame structure.

[0026] In one embodiment, the cabin assembly also includes a second pipe fixing bracket, which is arranged on the end plate. A second through groove is provided on one side of the second pipe fixing bracket, and the two ends of the second through groove are respectively connected to the liquid cooling unit installation cavity and the inner cavity of the energy storage cabin.

[0027] In a third aspect, an embodiment of the present application provides a battery energy storage system, which includes a liquid cooling unit, a battery, electrical components and the aforementioned cabin assembly; the liquid cooling unit includes a liquid cooling unit body and an exchange pipeline connected in sequence, the liquid cooling unit body is arranged in a liquid cooling unit installation cavity, and the exchange pipeline is arranged in the energy storage cabin; the battery is arranged in the energy storage cabin; and the electrical components are arranged in the energy storage cabin.

[0028] Beneficial effects of the embodiments of the present application:

[0029] In the embodiments of the present application, arranging ventilation holes on the side wall members helps to improve the heat dissipation efficiency of the liquid cooling module, and arranging longitudinal beams can avoid the problem of weakening the structural strength of the liquid cooling unit cabin caused by arranging ventilation holes on the side wall members. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0031] Figure 1 This is a schematic structural diagram of a liquid cooling unit cabin provided in an embodiment of the present application;

[0032] Figure 2 This is an exploded view of the liquid cooling unit cabin provided in an embodiment of the present application;

[0033] Figure 3 Schematic diagram of the position of the side wall member installation portion provided in an embodiment of the present application;

[0034] Figure 4 is a structural schematic diagram of a liquid-cooled unit cabin from another viewing direction provided by an embodiment of the present application;

[0035] Figure 5 yes Figure 3 Enlarged view of point A in the middle;

[0036] Figure 6 is a schematic structural diagram of a cabin assembly provided in an embodiment of the present application;

[0037] Figure 7 is a schematic structural diagram of an end plate provided in an embodiment of the present application;

[0038] Figure 8 is a structural schematic diagram of another end plate provided in an embodiment of the present application;

[0039] Figure 9 is a schematic structural diagram of an end plate from another viewing direction provided by an embodiment of the present application;

[0040] Figure 10 This is a schematic diagram of the connection between the liquid cooling unit cabin and the end plate provided in an embodiment of the present application;

[0041] Figure 11 yes Figure 7 Enlarged view of point B in the middle.

[0042] Description of reference numerals:

[0043] 001-Liquid-cooled unit cabin;

[0044] 011-end piece; 111-load bearing beam; 1111-extension end; 112-connecting beam; 113-first partition; 114-end partition; 115-end beam; 116-second partition;

[0045] 012-longitudinal beam;

[0046] 013-side wall member; 131-ventilation hole; 132-plate body; 1321-ventilation opening; 133-ventilation net; 134-side wall member installation position;

[0047] 014 - Liquid cooling unit installation cavity; 141 - Opening; 015 - Door bolt; 016 - First pipeline fixing bracket; 161 - First through slot;

[0048] 017- plug-in beam; 018- reinforced beam;

[0049] 002-energy storage cabin; 021-end plate; 211-angle beam; 212-supporting longitudinal beam; 213-supporting cross beam; 2131-slot; 214-supporting diagonal beam; 2141-corner piece; 2142-reinforced longitudinal beam; 2143-reinforced cross beam; 216-flat plate; 217-corrugated plate; 218-second pipeline fixing bracket; 2181-second through groove; 219-cabin partition; 003-cabin assembly. DETAILED DESCRIPTION

[0050] The following will be combined with the drawings in the embodiments of this application to clearly and completely describe the technical solutions in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this application, not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without making creative efforts are within the scope of protection of this application.

[0051] Furthermore, it should be understood that the specific embodiments described herein are intended only to illustrate and explain the present application and are not intended to limit the present application. In this application, unless otherwise indicated, directional terms such as "upper" and "lower" generally refer to the upper and lower positions of the device in actual use or operation, specifically the directions of the drawings in the accompanying drawings; whereas "inner" and "outer" refer to the outline of the device.

[0052] The terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of the technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the specified features. In the description of this application, "plurality" means two or more, unless otherwise specifically specified.

[0053] In the description of this application, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, movable connections, integral connections, overlapping connections, or abutting connections; they can refer to mechanical connections, electrical connections, or mutual communication; they can refer to direct connections or indirect connections through an intermediate medium; they can refer to internal communication between two components or the interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0054] To facilitate understanding of the solution of the present application, the spline curves and arrows used in the drawings are explained here: the components indicated by the spline curves without arrows are solid components, that is, components with solid structures; the components indicated by the spline curves with arrows are virtual components, that is, components without solid structures.

[0055] See also Figure 1 , Figure 1 : is a structural schematic diagram of a liquid cooling unit cabin 001 provided in an embodiment of the present application. An embodiment of the present application provides a liquid cooling unit cabin 001, which includes an end piece 011, a longitudinal beam 012, and a side wall piece 013. There are two end pieces 011, and the two end pieces 011 are arranged opposite to each other. There are multiple longitudinal beams 012, and the two ends of the multiple longitudinal beams 012 are respectively connected to the two end pieces 011. There are multiple side wall pieces 013, and the multiple side wall pieces 013 are located between the two end pieces 011. The multiple side wall pieces 013 are connected to the end pieces 011 and the longitudinal beams 012 to define a liquid cooling unit installation cavity 014. Among them, the side wall piece 013 is provided with a ventilation hole 131.

[0056] It will be appreciated that end piece 011 has an end surface perpendicular to the axis of longitudinal beam 012. Around the circumference of the end surface, multiple side wall pieces 013 are staggered with multiple longitudinal beams 012. A portion of the circumference of side wall piece 013 may be fixedly or movably connected to longitudinal beam 012, or fixedly or movably connected to end piece 011. Another portion of the circumference of side wall piece 013 overlaps or abuts adjacent longitudinal beam 012 or end piece 011.

[0057] Typically, the liquid-cooling unit cabin 001 has a cubic structure. Accordingly, there can be two, three, or four longitudinal beams 012, and the side beams are connected to the corners of the end pieces 011. There can be three or four sidewalls 013. When there are three sidewalls 013, the sidewalls 013, the end pieces 011, and the longitudinal beams 012 enclose a liquid-cooling unit installation cavity 014 with an opening 141 on one side. When there are four sidewalls 013, the sidewalls 013, the end pieces 011, and the longitudinal beams 012 enclose a closed liquid-cooling unit installation cavity 014.

[0058] There are multiple ventilation holes 131 on the side wall member 013, and the multiple ventilation holes 131 are distributed in a matrix. The end member 011 located on the side of the longitudinal beam 012 close to the ground is used to support the liquid cooling unit.

[0059] In addition, the longitudinal beam 012 can be a square tube, such as an aluminum square tube or an alloy square tube. The longitudinal beam 012 is welded to the end piece 011. During welding, carbon dioxide shielded welding is used to perform full welding to ensure the strength of the weld.

[0060] In this embodiment, arranging ventilation holes on the side wall member 013 helps to increase the ventilation area of the liquid cooling unit cabin 001, thereby increasing the air volume entering and exiting, thereby improving the heat dissipation efficiency of the liquid cooling module; and arranging longitudinal beams can avoid the problem of weakening the structural strength of the liquid cooling unit cabin caused by arranging ventilation holes on the side wall member.

[0061] See also Figure 2 and Figure 3 , Figure 2 This is an exploded view of the liquid cooling unit cabin 001 provided in an embodiment of the present application. Figure 3 This is a schematic diagram illustrating the location of a side wall mounting area 134 according to an embodiment of the present application. In one embodiment, longitudinal beam 012 and end member 011 define side wall mounting area 134. Side wall members 013 are positioned within and cover side wall mounting area 134. At least two side wall members 013 are openably connected to their corresponding side wall mounting areas 134.

[0062] It is understood that among the plurality of side wall members 013, two side wall members 013 are connected to their corresponding side wall member mounting portions 134 in an openable and closeable manner, while the remaining side wall members 013 are fixedly connected to their corresponding side wall member mounting portions 134. Alternatively, all of the plurality of side wall members 013 are connected to their corresponding side wall member mounting portions 134 in an openable and closeable manner.

[0063] In addition, one side of the periphery of the side wall member 013 can be movably connected to the longitudinal beam 012 or the end member 011. The remaining portion of the periphery of the side wall member 013 can overlap, abut, or be detachably connected to the longitudinal beam 012 and the end member 011.

[0064] The opening and closing connection is a mechanical connection structure that can be opened and closed. The opening and closing connection allows one side of the side wall member 013 to be connected to the longitudinal beam 012 or the end member 011, while the other side can move relative to the longitudinal beam 012 and the end member 011 to close or open the side wall member mounting portion 134.

[0065] In this embodiment, through the above-mentioned arrangement, at least two side walls of the liquid cooling unit cabin 001 can be opened to expose the liquid cooling unit installation cavity 014, thereby increasing the operable surface of the liquid cooling unit cabin 001 for installing and maintaining the liquid cooling unit, thereby reducing the difficulty of installing and maintaining the liquid cooling unit.

[0066] See also Figure 1 In one embodiment, in the side wall member 013 that is openably connected to the side wall member mounting portion 134 , one side of the side wall member 013 is hinged to the adjacent longitudinal beam 012 , and the other side of the side wall member 013 is connected to the adjacent longitudinal beam 012 through a bolt 015 .

[0067] It can be understood that one side of the side wall member 013 is hinged to the adjacent longitudinal beam 012 via a hinge.

[0068] In addition, the door bolt 015 can be but is not limited to a latch, a combination of bolts and nuts, a snap fastener, etc.

[0069] In this embodiment, through the above-mentioned arrangement, on the one hand, after the side wall member 013 is opened, the side wall member 013 occupies a small area, which is conducive to further improving the convenience of installing and maintaining the liquid cooling unit; on the other hand, the side wall member 013 can be stably in a state of closing the liquid cooling unit installation cavity 014 based on the door bolt 015, thereby preventing external dust and the like from entering the liquid cooling unit installation cavity 014 when the liquid cooling unit is working, thereby improving the reliability of the liquid cooling unit.

[0070] See also Figure 1 or Figure 2In one embodiment, sidewall member 013 includes a plate 132 and a ventilation mesh 133. Plate 132 is provided with ventilation openings 1321. The periphery of plate 132 is connected to end member 011 and longitudinal beam 012. Ventilation mesh 133 is disposed within and covers ventilation openings 1321. The mesh openings of ventilation mesh 133 serve as ventilation holes 131.

[0071] Specifically, the plate 132 is provided with a plurality of ventilation holes 1321 along the axial direction of the longitudinal beam 012, thereby further increasing the ventilation area of the liquid cooling unit cabin 001, thereby increasing the air flow in and out, and further improving the heat dissipation efficiency of the liquid cooling unit.

[0072] It can be understood that, when projected onto a plane parallel to the plate 132, the projected area of the side wall member 013 is S, and the area of the vent 1321 is S1, which satisfies the following relationship: 50% S ≤ S1 ≤ 90% S. S1 can be, but is not limited to, 50% S, 60% S, 66% S, 68% S, 70% S, 75% S, 80% S, or 90% S.

[0073] In this embodiment, through the above arrangement, the strength of the side wall member 013 can be ensured by the plate body 132 , and the ventilation requirements and dust prevention requirements can be met by the ventilation net 133 .

[0074] See also Figure 3 In one embodiment, the end piece 011 located at the lower end of the liquid-cooled unit cabin 001 is the first end piece. The first end piece includes multiple load beams 111 and multiple connecting beams 112. The multiple load beams 111 are arranged in a sequentially spaced arrangement. Adjacent load beams 111 are connected by a connecting beam 112. The end of the longitudinal beam 012 closest to the first end piece is connected to the adjacent load beam 111.

[0075] It can be understood that the multiple load-bearing beams 111 are sequentially spaced apart in a direction parallel to the horizontal plane.

[0076] The load-bearing beam 111 and the connecting beam 112 are square tubes, and the load-bearing beam 111 and the connecting beam 112 are welded. During welding, carbon dioxide shielded welding is used for full welding to ensure the strength of the weld.

[0077] In this embodiment, the above arrangement can improve the structural strength of the first end member, thereby increasing the load that the first end member can bear, and further increasing the supporting stability of the first end member for the liquid cooling unit.

[0078] See also Figure 2In one embodiment, the first end member further includes a first partition plate 113. The first partition plate 113 is disposed on a side of the load beam 111 that is close to the liquid cooling unit installation cavity 014, and / or the first partition plate 113 is disposed on a side of the load beam 111 that is away from the liquid cooling unit installation cavity 014. The first partition plate 113 at least covers the gaps between the load beams 111.

[0079] It can be understood that the first partition 113 is arranged on the side of the load-bearing beam 111 close to the liquid cooling unit installation cavity 014, or the first partition 113 is arranged on the side of the load-bearing beam 111 away from the liquid cooling unit installation cavity 014, or the first partition 113 is respectively arranged on the side of the load-bearing beam 111 close to the liquid cooling unit installation cavity 014 and the side away from the liquid cooling unit installation cavity 014.

[0080] Exemplarily, the first partition 113 is a skin, specifically a metal skin, which is welded to the load-bearing beam 111 and the connecting beam 112 .

[0081] In this embodiment, through the above-mentioned arrangement, on the one hand, the dustproof and waterproof properties of the first end piece can be improved, thereby facilitating the normal operation of the liquid cooling unit; on the other hand, the strength of the first end piece can be improved, thereby facilitating improving the supporting stability of the first end piece for the liquid cooling unit.

[0082] In addition, when the first partition 113 is a metal skin, it can also facilitate the heat of the liquid cooling unit to be discharged outside the liquid cooling unit cabin 001, thereby improving the heat dissipation efficiency of the liquid cooling unit.

[0083] See also Figure 2 In one embodiment, one side of the liquid cooling unit cabin 001 is configured to connect to one side of the energy storage cabin, and the first end member further includes an end partition 114. The end partition 114 is disposed at the end of the load beam 111 away from the energy storage cabin 002. The end of the load beam 111 is disposed opposite the end partition 114.

[0084] Exemplarily, the end partition 114 is a skin, specifically a metal skin, which is welded to the load-bearing beam 111 and the connecting beam 112 .

[0085] In this embodiment, through the above-mentioned arrangement, on the one hand, the dustproof and waterproof properties of the first end piece can be improved, thereby facilitating the normal operation of the liquid cooling unit; on the other hand, the strength of the first end piece can be improved, thereby facilitating improving the supporting stability of the first end piece for the liquid cooling unit.

[0086] In addition, when the end partition 114 is a metal skin, it can also facilitate the heat of the liquid cooling unit to be discharged outside the liquid cooling unit cabin 001, thereby improving the heat dissipation efficiency of the liquid cooling unit.

[0087] See also Figure 4 , Figure 4This is a schematic diagram of the structure of the liquid cooling unit cabin 001, shown from another perspective, according to an embodiment of the present application. In one embodiment, one side of the liquid cooling unit cabin 001 is configured to connect to one side of the energy storage cabin. An extension end 1111 is provided on one end of the load beam 111, which extends out of the liquid cooling unit installation cavity 014 and faces the energy storage cabin 002. Extension end 1111 is configured to plug into the energy storage cabin 002.

[0088] In this embodiment, through the above arrangement, the mating surface between the liquid cooling unit cabin 001 and the energy storage cabin 002 can be increased, thereby improving the reliability of the connection between the liquid cooling unit cabin 001 and the energy storage cabin 002.

[0089] See also Figure 3 and Figure 5 , Figure 5 yes Figure 3 In one embodiment, a first pipe fixing bracket 016 is provided on the inner wall of the liquid cooling unit installation cavity 014. A first through-slot 161 is provided on one side of the first pipe fixing bracket 016. The first through-slot 161 is configured to install the pipe of the liquid cooling unit.

[0090] The first pipeline fixing bracket 016 is welded to the first end piece, or fixed to the first end piece by bolts.

[0091] It is understood that the liquid cooling unit exchanges heat with the batteries and electrical components in the energy storage compartment 002 through piping. The piping has multiple connections, and the sealing of these connections is closely related to the reliability of the liquid cooling unit. However, when the liquid cooling unit is operating, the pump will vibrate, which can adversely affect the piping connections.

[0092] Based on this, in this embodiment, by providing a first pipe fixing bracket 016, the pipes of the liquid cooling unit can be fixed in the first through groove 161, thereby improving the synchronization between the pipes of the liquid cooling unit and the liquid cooling unit cabin 001, and reducing the shaking and floating of the pipes of the liquid cooling unit relative to the liquid cooling unit cabin 001. As a result, the influence of pump vibration on the connection parts of the pipes can be reduced.

[0093] See also Figure 2 In one embodiment, the end piece 011 located at the upper end of the liquid-cooled unit cabin 001 is the second end piece. The second end piece includes multiple end beams 115. These end beams 115 are sequentially connected end to end to form a first enclosure structure. The end of the longitudinal beam 012 near the second end piece is connected to the adjacent end beam 115.

[0094] For example, the end beam 115 is a square tube. The end beam 115 is welded to the adjacent longitudinal beam 012. During welding, carbon dioxide shielded welding is used to perform full welding to ensure the strength of the weld.

[0095] In this embodiment, the above arrangement enables the second end piece to have a simple structure, be easy to manufacture, and have sufficient structural strength.

[0096] See also Figure 2 In one embodiment, the second end member further includes a second partition plate 116. The second partition plate 116 is disposed at one end of the first frame structure and covers the inner side of the first frame structure.

[0097] It can be understood that the second partition 116 can be arranged at an end of the first frame structure close to the first end piece, and can also be arranged at an end of the first frame structure away from the first end piece.

[0098] Exemplarily, the second partition 116 is a skin, specifically a metal skin, which is welded to the load-bearing beam 111 and the connecting beam 112 .

[0099] In this embodiment, through the above-mentioned arrangement, on the one hand, the dustproof and waterproof properties of the second end piece can be improved, thereby facilitating the normal operation of the liquid cooling unit; on the other hand, the strength of the second end piece can be improved, thereby facilitating the improvement of the supporting stability of the liquid cooling unit cabin 001 for the liquid cooling unit.

[0100] In addition, when the second partition 116 is a metal skin, it can also facilitate the heat of the liquid cooling unit to be discharged outside the liquid cooling unit cabin 001, thereby improving the heat dissipation efficiency of the liquid cooling unit.

[0101] See also Figure 4 In one embodiment, the liquid cooling unit installation cavity 014 is a cavity structure with an opening 141 provided on one side, and the opening 141 is configured to abut against the energy storage cabin.

[0102] It can be understood that the liquid cooling unit installation cavity 014 is enclosed by two end plates 021 , a plurality of side wall members 013 and the portion of the energy storage compartment located at the opening 141 .

[0103] In this embodiment, the above arrangement allows the surface of the energy storage compartment to serve as a side wall of the liquid cooling unit installation cavity 014, thereby reducing the number of components in the liquid cooling unit compartment 001 and, in turn, the weight of the liquid cooling unit compartment 001. This also reduces the strength requirements of the side wall of the energy storage compartment 002 that connects to the liquid cooling unit compartment 001.

[0104] See also Figure 4 In one embodiment, the liquid cooling unit cabin 001 further includes a plurality of splicing beams 017. One end of the splicing beams 017 is connected to the longitudinal beam 012 or the end piece 011, and the other end is configured to be spliced with the energy storage cabin 002.

[0105] Specifically, a portion of the plug-in beam 017 is connected to the longitudinal beam 012 , and another portion of the plug-in beam 017 is formed by the end beam 115 extending from one end of the energy storage cabin 002 to the outside of the liquid cooling unit installation cavity 014 .

[0106] In this embodiment, through the above arrangement, the mating surface between the liquid cooling unit cabin 001 and the energy storage cabin 002 can be increased, thereby improving the reliability of the connection between the liquid cooling unit cabin 001 and the energy storage cabin 002.

[0107] See also Figure 2 In one embodiment, the liquid cooling unit cabin 001 further includes a reinforcing beam 018. The end piece 011 has an end surface perpendicular to the longitudinal beam 012. Along the periphery of the end surface, the reinforcing beam 018 is disposed between two adjacent longitudinal beams 012.

[0108] In this embodiment, by providing the reinforcing beam 018 , the structural strength of the liquid cooling unit cabin 001 can be further improved, thereby improving the bearing strength of the liquid cooling unit cabin 001 .

[0109] See also Figure 6 , Figure 6 Schematic diagram of the structure of cabin assembly 003 provided in an embodiment of the present application. Accordingly, an embodiment of the present application also provides a cabin assembly 003. This cabin assembly 003 includes an energy storage cabin 002 and the aforementioned liquid cooling unit cabin 001. Energy storage cabin 002 has an end plate 021. Liquid cooling unit cabin 001 is mounted on end plate 021.

[0110] The liquid cooling unit cabin 001 includes two end plates and a top plate, a bottom plate, a front door, and a back plate disposed between the two end plates. The top plate and the bottom plate are disposed opposite each other, and the front door and the back plate are disposed opposite each other. One of the end plates is mounted on the liquid cooling unit cabin.

[0111] In this embodiment, by using the aforementioned liquid cooling unit cabin 001, the structural strength of the cabin assembly 003 can be enhanced, thereby increasing the load-bearing strength of the cabin assembly 003. This allows the cabin assembly 003 to stably support various components and improves the heat dissipation efficiency of the liquid cooling unit. This facilitates the normal operation of the battery energy storage system.

[0112] See also Figure 7 , Figure 7 This is a schematic diagram of the structure of end plate 021 provided in an embodiment of the present application. In one embodiment, end plate 021 includes a support beam assembly and multiple corner beams 211. The corner beams 211 are sequentially connected end-to-end to form a second enclosure structure. The support beam assembly is disposed within the second enclosure structure. The liquid-cooled unit cabin 001 is connected to the support beam assembly and / or the corner beams 211.

[0113] It can be understood that the liquid cooling unit cabin 001 is connected to the support beam assembly, or the liquid cooling unit cabin 001 is connected to the angle beam 211, or the liquid cooling unit cabin 001 is connected to the support beam assembly and the angle beam 211.

[0114] Specifically, the extension end 1111 and the plug-in beam 017 are plugged into the end plate 021 , and the extension end 1111 and the plug-in beam 017 are fixed to the end plate 021 by welding.

[0115] In addition, the angle beam 211 is a square tube, and the angle beams 211 and the angle beams 211 and the support beam components are all welded. During welding, carbon dioxide shielded welding is used for full welding to ensure the strength of the weld.

[0116] In this embodiment, by adopting the end plate 021 of the above structure, the overall structure of the end plate 021 is simple, easy to manufacture, and has high strength, so that the liquid cooling unit can be mounted.

[0117] See also Figure 7 In one embodiment, the support beam assembly includes multiple longitudinal beams 212, multiple transverse beams 213, and multiple diagonal beams 214. The multiple longitudinal beams 212 and the multiple transverse beams 213 are staggered, and the ends of the multiple longitudinal beams 212 and the multiple transverse beams 213 are connected to adjacent corner beams 211. Multiple diagonal beams 214 are arranged in a one-to-one correspondence with the corners of the second frame structure. One end of the diagonal beam 214 is connected to the corresponding corner, and the other end is connected to the adjacent longitudinal beam 212.

[0118] The supporting longitudinal beams 212 , the supporting transverse beams 213 and the supporting diagonal beams 214 are all square tubes.

[0119] Specifically, the angle beams 211 parallel to the longitudinal beams 012 are longitudinal angle beams 211, and the angle beams 211 perpendicular to the longitudinal beams 012 are transverse angle beams 211. There are five supporting longitudinal beams 212, three of which are middle supporting longitudinal beams 212, which are arranged in the middle of the second frame structure; and the other two supporting longitudinal beams 212 are end supporting longitudinal beams 212, which are respectively arranged adjacent to the two longitudinal angle beams 211.

[0120] Among the multiple support beams 213, some are intermediate support beams, located between two adjacent intermediate support beams, with their ends connected to the adjacent intermediate support beams. Some are end support beams, located between the end support beams and the intermediate support beams, with their ends connected to the end support beams and the intermediate support beams, respectively. Another support beam 213 is a bottom beam, located near the bottom of the second frame structure, with its ends connected to the two longitudinal angle beams. It is provided with holes for the end support beams and the intermediate support beams to pass through. The end support beams and the intermediate support beams pass through the bottom beam and then connect to the horizontal angle beams located below the bottom beam.

[0121] The bottom cross beam is spaced apart from the adjacent transverse angle beam, and a reinforcing longitudinal beam 2142 and a reinforcing cross beam 2143 are arranged in the interval between them. The two ends of the reinforcing longitudinal beam 2142 are respectively connected to the bottom cross beam and the transverse angle beam, one end of the reinforcing cross beam 2143 is connected to the end supporting longitudinal beam, and the other end passes through the reinforcing longitudinal beam and an intermediate supporting longitudinal beam in sequence and then is connected to another intermediate supporting longitudinal beam.

[0122] One end of the supporting diagonal beam 214 away from the bottom cross beam is connected to the angle between the end supporting longitudinal beam and the horizontal angle beam, and the other end is connected to the adjacent middle supporting longitudinal beam. One end of the supporting diagonal beam 214 close to the bottom cross beam is connected to the angle between the end supporting longitudinal beam and the bottom cross beam, and the other end is connected to the adjacent middle supporting longitudinal beam.

[0123] In this embodiment, the above arrangement can improve the structural strength of the end plate 021, thereby facilitating the mounting of a liquid cooling unit thereon.

[0124] In addition, through the above-mentioned arrangement, the overall structural strength of the cabin assembly 003 is improved, thereby facilitating the smooth progress of subsequent lifting and stacking operations.

[0125] See also Figure 7 In one embodiment, a slot 2131 is defined between the supporting longitudinal beam 212 and the adjacent angle beam 211, and / or a slot 2131 is defined between the supporting transverse beam 213 and the adjacent angle beam 211. The slot 2131 is configured to be plugged into the liquid cooling unit cabin 001.

[0126] It can be understood that a slot 2131 is defined between the supporting longitudinal beam 212 and the adjacent angle beam 211, or a slot 2131 is defined between the supporting cross beam 213 and the adjacent angle beam 211, or a slot 2131 is defined between the supporting longitudinal beam 212 and the adjacent angle beam 211 and between the supporting cross beam 213 and the adjacent angle beam 211.

[0127] Specifically, a slot 2131 is defined between the longitudinal angle beam and the end supporting longitudinal beam, and the slot 2131 is used for inserting the plug-in beam 017; a slot 2131 is defined between the bottom cross beam and the cross angle beam arranged adjacent thereto, and the slot 2131 is used for inserting the extension end 1111.

[0128] In this embodiment, through the above-mentioned arrangement, the end plate 021 can form a slot 2131 for inserting the liquid-cooled unit cabin 001 by arranging the corresponding beam body intervals, thereby making the end plate 021 simple to manufacture, and there is no need to separately process the slot 2131, thereby controlling the manufacturing cost of the end plate 021.

[0129] See also Figure 7 In one embodiment, the end plate 021 further includes a plurality of corner pieces 2141. The corner pieces 2141 are staggered with the corner beams 211 along the circumference of the second frame structure. Both sides of the corner pieces 2141 are connected to the ends of the adjacent corner beams 211.

[0130] In this embodiment, the provision of the corner piece 2141 can improve the operability and reliability of the connection between two adjacent corner beams 211, thereby improving the structural reliability of the end plate 021.

[0131] See also Figure 8 and Figure 9 , Figure 8 This is a structural diagram of another end plate 021 provided in an embodiment of the present application. Figure 9 FIG2 is a schematic structural diagram of end plate 021 according to another embodiment of the present application. In one embodiment, end plate 021 further includes a cabin bulkhead 219. Cabin bulkhead 219 is disposed on the side of the second frame structure that is adjacent to the liquid-cooled unit cabin 001, and / or on the side of the second frame structure that is facing away from the liquid-cooled unit cabin 001. Cabin bulkhead 219 covers any gaps within the second frame structure.

[0132] It can be understood that the cabin partition 219 is arranged on the side of the second frame structure close to the liquid cooling unit cabin 001, or the cabin partition 219 is arranged on the side of the second frame structure away from the liquid cooling unit cabin 001, or the cabin partition 219 is arranged on the side of the second frame structure close to the liquid cooling unit cabin 001 and the side of the second frame structure away from the liquid cooling unit cabin 001.

[0133] The cabin partition 219 is provided with an escape opening for escaping the slot 2131 , so that the splicing beam 017 and the extension end 1111 can pass through the escape opening and be plugged into the corresponding slot 2131 .

[0134] In addition, the cabin partition 219 can be arranged on one side of the support beam assembly, and the periphery of the cabin partition 219 is connected to the angle beam 211; or the cabin partition 219 can include multiple sub-partitions, and sub-partitions are arranged in the gap enclosed by the support beam assembly and the angle beam 211, and the periphery of the sub-partitions is connected to the support beam assembly and the angle beam 211.

[0135] Exemplarily, the cabin bulkhead 219 is a skin, specifically a metal skin, which is welded to the corner beam 211 and the support beam assembly.

[0136] In this embodiment, by providing the cabin partition 219, on the one hand, the structural strength of the end plate 021 can be improved, which is conducive to its stable mounting of the liquid cooling unit; on the other hand, the sealing of the energy storage cabin 002 can be improved, which is conducive to the stable operation of the battery and electrical components.

[0137] In addition, when the cabin partition 219 is a metal skin, it can also facilitate the heat dissipation of the energy storage cabin 002 to the liquid cooling unit cabin 001, and the heat dissipation components in the liquid cooling unit cabin 001, such as a fan, discharge the liquid cooling unit cabin 001, thereby improving the heat dissipation efficiency of the energy storage system.

[0138] See also Figure 8 and 10 , Figure 10 This is a schematic diagram illustrating the connection between the liquid-cooled unit cabin 001 and the end plate 021 provided in an embodiment of the present application. In one embodiment, a cabin partition 219 is disposed on the side of the second frame structure proximal to the liquid-cooled unit cabin 001. This cabin partition 219 comprises a flat plate 216 and a corrugated plate 217. The liquid-cooled unit cabin 001 and the flat plate 216 are disposed opposite each other.

[0139] It can be understood that the corrugated plate 217 includes a plurality of convex strips arranged away from the inner cavity of the energy storage chamber 002, and the plurality of convex strips are arranged in sequence and at intervals.

[0140] In this embodiment, the above arrangement can increase the contact area between the energy storage cabin 002 and the external environment, thereby increasing the heat conduction surface area between the energy storage cabin 002 and the air, thereby improving the heat dissipation efficiency of the energy storage cabin 002.

[0141] See also Figure 11 , Figure 11 yes Figure 7 Enlarged view of point B in the figure. In one embodiment, the chamber assembly 003 further includes a second pipe fixing bracket 218. The second pipe fixing bracket 218 is mounted on the end plate 021. A second through-slot 2181 is provided on one side of the second pipe fixing bracket 218. The two ends of the second through-slot 2181 are connected to the liquid cooling unit installation cavity 014 and the inner cavity of the energy storage chamber 002, respectively.

[0142] The first pipeline fixing bracket 016 is welded in the slot 2131 , specifically located between the end supporting longitudinal beam and the adjacent angle beam.

[0143] It is understood that the liquid cooling unit exchanges heat with the batteries and electrical components in the energy storage compartment 002 through piping. The piping has multiple connections, and the sealing of these connections is closely related to the reliability of the liquid cooling unit. However, when the liquid cooling unit is operating, the pump will vibrate, which can adversely affect the piping connections.

[0144] Based on this, in this embodiment, by providing a second pipe fixing bracket 218, the pipes of the liquid cooling unit can be fixed in the second through groove 2181, thereby improving the synchronization between the pipes of the liquid cooling unit and the liquid cooling unit cabin 001, and reducing the shaking and floating of the pipes of the liquid cooling unit relative to the liquid cooling unit cabin 001. As a result, the influence of pump vibration on the connection parts of the pipes can be reduced.

[0145] Accordingly, embodiments of the present application also provide a battery energy storage system. This battery energy storage system includes a liquid cooling unit, batteries, electrical components, and the aforementioned cabin assembly 003. The liquid cooling unit includes a liquid cooling unit body and an exchange pipeline, which are connected in sequence. The liquid cooling unit body is disposed in the liquid cooling unit mounting cavity 014. The exchange pipeline is disposed in the energy storage cabin 002. The batteries are disposed in the energy storage cabin 002. The electrical components are disposed within the energy storage cabin 002.

[0146] Among them, according to the different volumes of the liquid cooling units, the liquid cooling unit cabin 001 can be assembled by selecting square tubes of corresponding width sizes.

[0147] In this embodiment, by adopting the aforementioned cabin combination, ventilation holes 131 can be provided on each side wall member 013 of the liquid cooling unit cabin 001, thereby increasing the ventilation area of the liquid cooling unit cabin 001 and increasing the air flow, thereby improving the heat dissipation efficiency of the battery energy storage system.

[0148] The above is a detailed introduction to the embodiments of the present application. Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method and core idea of the present application. At the same time, for those skilled in the art, based on the ideas of the present application, there may be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A liquid cooling unit cabin, characterized in that: include: two end pieces, disposed opposite each other; a plurality of longitudinal beams, each end of which is connected to the two end pieces; a plurality of side wall members located between the two end members, the plurality of side wall members being connected to the end members and the longitudinal beams to define a liquid cooling unit installation cavity; Wherein, the side wall member is provided with ventilation holes.

2. The liquid cooling unit cabin according to claim 1, characterized in that: The longitudinal beam and the end member define a side wall member installation portion, and the side wall member is arranged at the side wall member installation portion and covers the side wall member installation portion; Wherein, at least two of the side wall members are connected to the corresponding side wall member installation parts in an opening and closing manner.

3. The liquid cooling unit cabin according to claim 2, characterized in that: In the side wall member that is openably connected to the side wall member installation portion, one side of the side wall member is hinged to the adjacent longitudinal beam, and the other side of the side wall member is connected to the adjacent longitudinal beam through a door bolt.

4. The liquid cooling unit cabin according to any one of claims 1 to 3, characterized in that: The side wall member comprises: a plate body provided with vents, wherein the periphery of the plate body is connected to the end pieces and the longitudinal beams; A ventilation net is arranged in the ventilation opening and covers the ventilation opening, and the mesh holes of the ventilation net serve as the ventilation holes.

5. The liquid cooling unit cabin according to any one of claims 1 to 3, characterized in that: The end piece located at the lower end of the liquid-cooled unit cabin is the first end piece. The first end piece includes multiple load-bearing beams and multiple connecting beams. The multiple load-bearing beams are arranged in sequence at intervals, and two adjacent load-bearing beams are connected by the connecting beams. The end of the longitudinal beam close to the first end piece is connected to the load-bearing beam adjacent to it.

6. The liquid cooling unit cabin according to claim 5, characterized in that: The first end piece also includes a first partition, which is arranged on the side of the load-bearing beam close to the liquid cooling unit installation cavity, and / or the first partition is arranged on the side of the load-bearing beam away from the liquid cooling unit installation cavity, and the first partition at least covers the gap between the load-bearing beams.

7. The liquid cooling unit cabin according to claim 5, characterized in that: One side of the liquid cooling unit cabin is configured to be connected to one side of the energy storage cabin. The first end piece also includes an end partition, which is arranged at the end of the load-bearing beam away from the energy storage cabin. The end of the load-bearing beam is arranged opposite to the end partition.

8. The liquid cooling unit cabin according to claim 5, characterized in that: One side of the liquid cooling unit cabin is configured to be connected to one side of the energy storage cabin, and an extension end is provided at one end of the load-bearing beam facing the energy storage cabin and extending out of the liquid cooling unit installation cavity, and the extension end is configured to be plugged into the energy storage cabin.

9. The liquid cooling unit cabin according to any one of claims 1 to 3, characterized in that: A first pipeline fixing bracket is provided on the inner wall of the liquid cooling unit installation cavity, and a first through groove is provided on one side of the first pipeline fixing bracket. The first through groove is configured to install the pipeline of the liquid cooling unit.

10. The liquid cooling unit cabin according to any one of claims 1 to 3, characterized in that: The end piece located at the upper end of the liquid cooling unit cabin is the second end piece, and the second end piece includes multiple end beams, which are connected end to end in sequence to form a first frame structure, and the end of the longitudinal beam close to the second end piece is connected to the adjacent end beam.

11. The liquid cooling unit cabin according to claim 10, characterized in that: The second end piece further includes a second partition plate, which is arranged at one end of the first enclosing frame structure and covers the inner side of the first enclosing frame structure.

12. The liquid cooling unit cabin according to any one of claims 1 to 3, characterized in that: The liquid cooling unit installation cavity is a cavity structure with an opening on one side, and the opening is configured to abut against the energy storage cabin.

13. The liquid cooling unit cabin according to any one of claims 1 to 3, characterized in that: The liquid cooling unit cabin further includes a plurality of plug-in beams, one end of each of which is connected to the longitudinal beam or the end piece, and the other end of each of which is configured to be plugged into the energy storage cabin.

14. The liquid cooling unit cabin according to any one of claims 1 to 3, characterized in that: The liquid cooling unit cabin further includes a reinforcing beam, the end piece has an end surface perpendicular to the longitudinal beam, and the reinforcing beam is arranged between two adjacent longitudinal beams along the periphery of the end surface.

15. A cabin assembly, characterized in that: include: An energy storage cabin having end plates; And the liquid-cooled unit cabin according to any one of claims 1 to 14; Wherein, the liquid cooling unit cabin is arranged on the end plate.

16. The cabin assembly according to claim 15, characterized in that The end plate includes a support beam assembly and a plurality of angle beams, wherein the plurality of angle beams are sequentially connected end to end to form a second frame structure, and the support beam assembly is disposed within the second frame structure; Wherein, the liquid cooling unit cabin is connected to the support beam assembly and / or the angle beam.

17. The cabin assembly according to claim 16, wherein: The support beam assembly includes multiple supporting longitudinal beams, multiple supporting transverse beams and multiple supporting diagonal beams. The multiple supporting longitudinal beams and the multiple supporting transverse beams are staggered. The ends of the multiple supporting longitudinal beams and the multiple supporting transverse beams are connected to the adjacent corner beams. The multiple supporting diagonal beams are arranged in a one-to-one correspondence with the corners of the second frame structure. One end of the supporting diagonal beam is connected to the corresponding corner, and the other end is connected to the adjacent longitudinal beam.

18. The cabin assembly according to claim 17, wherein: A slot is defined between the supporting longitudinal beam and the adjacent angle beam, and / or a slot is defined between the supporting transverse beam and the adjacent angle beam, and the slot is configured to be plugged into the liquid cooling unit cabin.

19. The cabin assembly according to claim 16, wherein: The end plate further includes a plurality of corner pieces, which are staggered with the plurality of corner beams along the circumference of the second frame structure, and both sides of the corner pieces are respectively connected to the ends of the adjacent corner beams.

20. The cabin assembly according to any one of claims 16 to 19, characterized in that: The end plate also includes a cabin partition, which is arranged on a side of the second frame structure close to the liquid-cooled unit cabin, and / or the cabin partition is arranged on a side of the second frame structure away from the liquid-cooled unit cabin, and the cabin partition covers the gap in the second frame structure.

21. The cabin assembly according to any one of claims 16 to 19, characterized in that: The cabin assembly also includes a second pipeline fixing bracket, which is arranged on the end plate. A second through groove is provided on one side of the second pipeline fixing bracket, and the two ends of the second through groove are respectively connected to the liquid cooling unit installation cavity and the inner cavity of the energy storage cabin.

22. A battery energy storage system, characterized in that: include: The cabin assembly according to any one of claims 15 to 21; A liquid cooling unit, comprising a liquid cooling unit body and an exchange pipeline connected in sequence, wherein the liquid cooling unit body is arranged in the liquid cooling unit installation cavity, and the exchange pipeline is arranged in the energy storage cabin; A battery is arranged in the energy storage compartment; Electrical components are arranged in the energy storage compartment.

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