Liquid cooling immersion cabin and immersed cooling energy storage battery cabinet thereof

Abstract

The utility model discloses a liquid cooling immersion cabin, which comprises a cabin body and a cabin door, and is characterized in that the cabin body is provided with an accommodating space for accommodating a cooling medium and a plurality of battery cell assemblies; the bin body comprises a plurality of bin plates and layer support assemblies for mounting corresponding battery cell assemblies; a containing space with an opening is defined by the bin plates; the opening is located in the peripheral side of the bin body, and the bin door is connected with the opening in a sealed mode. The liquid cooling immersion bin further comprises a supporting frame arranged outside the bin body, and the supporting frame is connected with the outer surfaces of the bin plates. The layer supporting assembly is arranged on the inner surface of the bin plate. According to the scheme, the space utilization rate and the heat dissipation effect of the immersion bin are improved.

Description

Technical Field

[0001] The utility model relates to the field of heat dissipation equipment, in particular to a liquid-cooled immersion chamber and an immersion-type cooling energy storage battery cabinet thereof. Background Art

[0002] Electrochemical energy storage systems are one of the fastest-growing energy storage methods. With their widespread adoption, safety issues have become increasingly important. Because batteries contain large amounts of organic electrolyte, poor temperature uniformity between cells or overcharge or over-discharge can create localized smoke or fire risks. If handled improperly, the entire energy storage plant could explode, resulting in incalculable casualties and property damage.

[0003] Liquid cooling technology has become a mainstream method for protecting battery energy storage systems. By submerging the batteries in coolant, not only can the battery temperature be effectively controlled, but oxygen is also isolated, limiting combustion conditions. Even if the batteries experience thermal runaway, the liquid cooling system can prevent explosion and combustion. However, the battery immersion chamber must not only be highly sealed but also easy to maintain. Existing liquid-cooled immersion chambers for energy storage batteries suffer from low space utilization and poor heat dissipation, requiring further improvement. Utility Model Content

[0004] The present invention aims to solve one of the technical problems in the related art to a certain extent. To this end, the present invention provides a liquid-cooled immersion tank and an immersion-cooled energy storage battery cabinet thereof, which improves the space utilization and heat dissipation effect of the immersion tank.

[0005] In order to achieve the above-mentioned object, the present invention adopts the following technical solutions in the first aspect:

[0006] A liquid-cooled immersion chamber, comprising a chamber body and a chamber door, wherein the chamber body has a storage space for accommodating a cooling medium and a plurality of battery core assemblies;

[0007] The silo body includes a plurality of silo plates and a layer support assembly for mounting corresponding battery cell assemblies; the plurality of silo plates enclose a storage space with an opening; the opening is located on the peripheral side of the silo body, and the silo door is sealedly connected to the opening;

[0008] The liquid-cooled immersion chamber further comprises a support frame arranged outside the chamber body, the support frame being connected to the outer surface of the chamber plate; the layer support assembly is arranged on the inner surface of the chamber plate.

[0009] Optionally, the plurality of storage plates include two support plates arranged opposite to each other, the support plates extending from the bottom to the top of the accommodating space; and the support frame is in contact with outer surfaces of the support plates.

[0010] Optionally, the layer support assembly includes multiple support parts; the multiple support parts are arranged on the opposite inner surfaces of the two support plates; the multiple support parts have different heights; two support parts opposite to each other at the same height are used to support the same battery cell assembly.

[0011] Optionally, the multiple bin plates include a first bin plate opposite to the opening; one side of the two support plates respectively forms part of the opening, and the other side is respectively connected to the first bin plate; the support portion extends from the opening toward the first bin plate.

[0012] Optionally, it also includes multiple partitions for placing battery cell components; the multiple partitions are spaced apart in the height direction of the accommodating space; the partitions correspond to two opposite support parts located at the same height, and the two sides of the partitions are respectively mounted on the corresponding support parts.

[0013] Optionally, the opening has an annular outer flange, and the periphery of the door is sealed to the outer flange.

[0014] Optionally, the support frame includes a plurality of annular frames arranged at intervals, and a plurality of connecting strips located between the plurality of annular frames, and the two ends of the connecting strips are respectively connected to two adjacent annular frames; the annular frames are polygonal, and each edge of the annular frames is in contact with the corresponding warehouse plate.

[0015] Optionally, a medium inlet and a medium outlet are formed on the bin body; the medium inlet is communicated with the bottom of the accommodating space, and the medium outlet is communicated with the top of the accommodating space;

[0016] The liquid-cooled immersion tank also includes a liquid distribution pipe arranged at the bottom of the accommodating space; the liquid distribution pipe has a main pipe and multiple branch pipes connected to the main pipe, and the branch pipes are provided with multiple liquid outlet holes at intervals in their extension direction; the main pipe is connected to the medium inlet; the medium inlet is connected to the bottom of the accommodating space through the multiple liquid outlet holes on the liquid distribution pipe.

[0017] Optionally, the warehouse body is further provided with at least one of a pressure relief valve, a liquid injection port and an electrical interface; the pressure relief valve, the liquid injection port and the electrical interface are all arranged at the top position of the warehouse body.

[0018] In addition, the utility model also provides an immersion-cooled energy storage battery cabinet, comprising a cabinet body, a liquid cooling and heat dissipation system arranged in the cabinet body, and a liquid cooling immersion bin as described in the first aspect; an installation groove is opened on the peripheral side of the cabinet body, and the liquid cooling immersion bin is installed in the installation groove; the bin door is located at the notch of the installation groove; the liquid cooling and heat dissipation system is connected to the medium inlet and the medium outlet respectively through pipelines.

[0019] These features and advantages of the present invention will be detailed in the following detailed description and accompanying drawings. The preferred embodiments or means of the present invention will be fully illustrated in conjunction with the accompanying drawings, but are not intended to limit the technical solutions of the present invention. Furthermore, although multiple features, elements, and components may be present and are labeled with different symbols or numbers for convenience, they all represent components with the same or similar structure or function. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] The present invention will be further described below with reference to the accompanying drawings:

[0021] Figure 1 and Figure 2 They are schematic structural diagrams of the liquid-cooled immersion chamber (with battery core components) in some embodiments at different viewing angles.

[0022] Figure 3 Schematic diagram of the structure of the liquid-cooled immersion chamber described in some embodiments (the chamber door is omitted).

[0023] Figure 4 Schematic diagram of the flow direction of the cooling medium when the liquid-cooled immersion chamber is in operation in some embodiments.

[0024] Figure 5 Schematic diagram of the structure of the immersion cooling energy storage battery cabinet described in some embodiments.

[0025] Among them, 100, warehouse body; 110, warehouse plate; 111, support plate; 112, support part; 113, first warehouse plate; 121, outer flange; 130, medium inlet; 140, medium outlet; 200, warehouse door; 300, support frame; 310, ring frame; 320, connecting strip; 400, battery cell assembly; 510, main pipeline; 520, branch pipeline; 610, pressure relief valve; 620, liquid filling port; 630, electrical interface; 700, cabinet. DETAILED DESCRIPTION

[0026] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described in the embodiments are intended to explain the present invention and are not to be construed as limiting the present invention.

[0027] In the description of the present invention, it should be understood that the terms "longitudinal", "transverse", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0029] In the description of the present invention, unless otherwise specified, "a plurality of" means two or more, and "a number of" means one or more.

[0030] References in this specification to "one embodiment," "an example," or "an example" mean that a particular feature, structure, or characteristic described in connection with the embodiment itself can be included in at least one embodiment disclosed herein. The appearance of the phrase "in one embodiment" in various places in the specification does not necessarily refer to the same embodiment.

[0031] Example:

[0032] like Figure 1 、 Figure 2 and Figure 3 , a liquid cooling immersion tank is shown. The liquid cooling immersion tank comprises a tank body 100, a tank door 200 and a support frame 300. The tank body 100 has a storage space for accommodating a cooling medium and a plurality of battery cell assemblies 400.

[0033] The silo 100 includes multiple silo panels 110 and a tray assembly for mounting battery cell assemblies. The multiple silo panels 110 enclose a storage space with an opening. The opening is located on a peripheral side of the silo 100, and the silo door 200 is sealed to the opening. Depending on the structural characteristics of the silo 100, such as a rectangular silo 100 with front-to-back or left-to-right orientation, the opening can be located on either side of the silo 100.

[0034] The support frame 300 is disposed outside the silo 100 and is connected to the outer surface of the silo plate 110 relative to the storage space. The support frame 300 is usually tightly combined with the silo plate 110 by welding or other methods, thereby providing stable support for the silo 100.

[0035] The silo 100 is provided with a medium inlet 130 and a medium outlet 140. The medium inlet 130 is connected to the bottom of the storage space, and the medium outlet 140 is connected to the top of the storage space. The silo 100 is connected to the external medium heat dissipation circulation system pipeline through the medium inlet 130 and the medium outlet 140. The circulation system continuously inputs low-temperature cooling medium into the silo 100 through the medium inlet 130. The cooling medium is usually liquid cooling oil, which has a certain insulation effect. Figure 4 After the cooling medium comes into contact with the battery cell assembly 400 in the accommodation space, it absorbs heat, its temperature rises, its density decreases, and it then floats upward through heat convection, and is finally discharged from the medium outlet 140, entering the heat dissipation system for cooling and then recycled.

[0036] In this embodiment, because the silo body 100 is located within the support frame 300, the support frame 300 is connected to the outer surface of the silo body 100, effectively providing structural support for the entire silo body 100. On the one hand, this allows the storage space within the silo body 100 to be fully utilized; on the other hand, compared to traditional designs where the support frame 300 is located within the silo body 100, this structure eliminates the need for the cooling medium to overcome the obstruction of the horizontal support frame 300 during vertical heat convection. The cooling medium can flow smoothly along the vertical surface of the silo plate 110, accelerating heat convection and further improving the heat dissipation effect.

[0037] In some embodiments, the multiple storage panels 110 include two opposing support panels 111 extending from the bottom to the top of the storage space. These panels are typically vertical, but may have a certain inclination angle. The support panels 111 may be flat or curved, and the support frame 300 supports the outer surfaces of the support panels 111. For example, the figure shows a rectangular storage body 100 composed of five rectangular storage panels 110: left and right storage panels, upper and lower storage panels, and a rear storage panel. The left and right storage panels are opposite each other and connected to the upper and lower storage panels. An opening is located at the front of the storage body 100, and the left, right, and upper and lower storage panels surround the rear storage panel 110. The left and right storage panels and the rear storage panel 110 are arranged vertically, while the upper and lower storage panels are arranged horizontally and perpendicular to the rear storage panel 110, ultimately forming a rectangular storage space.

[0038] In some alternative embodiments, the rear storage plate 110 may be designed in a trapezoidal shape, with the upper width being greater than the lower width, and the left and right storage plates being arranged in an inclined manner, thereby forming a storage space that is wider at the top and narrower at the bottom in the storage body 100.

[0039] In other alternative embodiments, the warehouse body 100 may adopt a sideways cylindrical structure, that is, the rear warehouse panel 110 is circular, and the upper and lower warehouse panels and the left and right warehouse panels are replaced by cylindrical warehouse panels 110. Accordingly, the opening of the warehouse body 100 and the warehouse door 200 are also circular in design.

[0040] In some embodiments, the number of the layer support assemblies is designed according to the number of battery cell assemblies that need to be installed. Usually, the layer support assemblies correspond one to one to the battery cell assemblies. Multiple layer support assemblies are arranged at intervals in the height direction. Each layer support assembly includes multiple support parts 112. In this embodiment, two support parts 112 are taken as an example, and the two support parts 112 are arranged on the opposite inner surfaces of the two support plates 111. The corresponding support parts 112 of different layer support assemblies have different heights. The same height, two opposite support parts 112 are used to support the same battery cell assembly 400. For example, in an embodiment in which a rectangular accommodating space is formed in the warehouse body 100, the left and right warehouse plates of the warehouse body 100 are equivalent to two opposite support plates 111.

[0041] More specifically, the multiple bin plates 110 include a first bin plate 113 opposite the opening. One side of the two support plates 111 respectively forms a portion of the opening, and the other side is connected to the first bin plate 113. The support portion 112 extends from the opening toward the first bin plate 113. That is, the rear bin plate 110 faces the opening of the bin body 100, with the front sides of the left and right bin plates respectively forming two opposing portions of the opening, while the rear sides are respectively connected to the rear bin plate 110 in the left and right directions. The support portion 112 protrudes from the inner wall of the support plate 111 to provide a support surface. It is typically a strip-shaped structure, with one end extending toward the opening and the other end extending to the rear bin plate 110. Compared to a multi-stage support portion 112, the strip-shaped support portion 112 extends continuously between the opening and the rear bin plate 110, providing a larger contact area and increasing strength. The strip-shaped support portion 112 can be made of angle steel that matches the size of the bin plate 110.

[0042] Since the housing 100 in this embodiment relies on the support frame 300 for support, even if a support portion 112 is provided within the housing 100, the support portion 112 can be designed to be lighter and thinner to reduce the storage space occupied. Furthermore, since the support portion 112 is only used to support the battery cell assembly 400, a design with multiple intermittently distributed support portions 112 or through-holes in a continuous support portion 112 can be used to reduce the obstruction of heat convection of the cooling medium.

[0043] In some alternative embodiments, since the storage body 100 adopts an inverted trapezoidal design, the support plate 111 is arranged at an angle rather than being arranged vertically. Therefore, this type of inclined support plate 111 can omit the support portion 112. By reasonably designing the spacing between the fixing plate of the battery cell assembly 400 and the support plate 111, the fixing plate of the battery cell assembly 400 can naturally fit the surface of the support plate 111 when placed horizontally. The deadweight of the battery cell assembly 400 can be used to reinforce the fixing plate. At the same time, an auxiliary fixing portion can also be provided on the rear storage plate 110 to limit or provide auxiliary support for the fixing plate of the battery cell assembly 400.

[0044] In some embodiments, the liquid-cooled immersion chamber further includes a plurality of partitions for placing the battery cell assemblies 400. The plurality of partitions are spaced apart in the height direction of the accommodation space, and the two ends of each partition are supported on two opposing support portions 112 located at the same height.

[0045] In addition, in some embodiments, an annular outer flange 121 is provided at the opening, with the perimeter of the door 200 sealed against it. The outer flange 121 is oriented vertically, while the opening faces horizontally. The addition of the outer flange 121 not only provides additional mounting support for the door 200's sealing, but also enhances both vertical and horizontal sealing reliability.

[0046] In this embodiment, the door 200 includes a door frame and a transparent door panel, wherein the door frame surrounds the transparent door panel and is sealed to the outer flange 121. Through the transparent door panel, the battery cell assembly 400 and some changes in the cooling medium inside the accommodation space can be clearly observed.

[0047] In some embodiments, the support frame 300 includes a plurality of annular frames 310 arranged at intervals, and a plurality of connecting strips 320 located between the plurality of annular frames 310, and the two ends of the connecting strips 320 are respectively connected to two adjacent annular frames 310. The annular frame 310 is polygonal, and each side of the annular frame 310 is fitted and integrally connected to the corresponding warehouse plate 110. Since the interior of the warehouse body 100 is filled with liquid cooling medium, the warehouse plate 110 not only supports the battery cell assembly 400, but also needs to withstand the pressure of the cooling medium. Therefore, the annular frame 310 surrounds the warehouse body 100 on all sides, providing stable structural support for the warehouse body 100. For example, the annular frame 310 is welded by four sections of pipes with lengths matching the warehouse plate 110, and is completely fitted and fixed to the surface of the warehouse plate 110.

[0048] To enhance the securing effect, multiple annular frames 310 can be provided in the front-to-back direction, and multiple connecting bars 320 can be provided between adjacent annular frames 310. The connecting bars 320 surround the annular frames 310 and are arranged on all four sides of the warehouse body 100 in the upper, lower, left, and right directions. The connecting bars 320 on both sides of the same annular frame 310 in the front-to-back direction are aligned, forming multiple cross-intersections on the annular frame 310, thereby forming a criss-crossing mesh support structure, further enhancing the strength of the support frame 300.

[0049] In order to improve the structural strength of the outer flange 121, the frontmost connecting strip 320 can be extended to the outer flange 121 and welded thereto, thereby preventing the outer flange 121 from deforming and improving the sealing effect between the warehouse door 200 and the outer flange 121.

[0050] In some embodiments, the liquid-cooled immersion tank further includes a liquid distribution pipe fitting arranged at the bottom of the storage space. The liquid distribution pipe fitting includes a main pipe 510 and a plurality of branch pipes 520 connected to the main pipe 510, and the branch pipes 520 are provided with a plurality of liquid outlet holes spaced apart in the direction of their extension. The main pipe 510 is connected to the medium inlet 130. The medium inlet 130 is connected to the bottom of the storage space through the plurality of liquid outlet holes on the liquid distribution pipe fitting. Specifically, the liquid distribution pipe fitting is arranged on the inner surface of the lower storage plate, and the main pipe 510 is in the middle position of the lower storage plate. One end of the main pipe 510 is connected to the medium inlet 130 located on the rear storage plate 110, and the other end thereof extends toward the opening. The branch pipes 520 are respectively located on both sides of the main pipe 510 in the left and right directions. The plurality of branch pipes 520 are arranged at intervals so that the liquid outlet holes can be relatively evenly distributed at the bottom of the storage space. The opening direction of the liquid outlet on the branch pipe 520 is set downward, that is, facing the surface of the lower storage plate, to reduce the possibility of the cooling medium forming a dead zone (cooling medium hardly flows) on the surface of the lower storage plate.

[0051] In some embodiments, the silo body 100 is further provided with at least one of a pressure relief valve 610, a liquid injection port 620, and an electrical interface 630. In this embodiment, the silo body 100 is provided with a pressure relief valve 610, a liquid injection port 620, and an electrical interface 630. Specifically, the pressure relief valve 610, the liquid injection port 620, and the electrical interface 630 are all provided at the top of the silo body 100. Figure 1 As shown, the pressure relief valve 610, the liquid injection port 620, and the electrical interface 630 are all disposed on the upper compartment plate 110. Multiple electrical interfaces 630 are provided, all located on the side of the upper compartment plate 110 near the opening. The liquid injection port 620 is also located on the side of the upper compartment plate 110 near the opening and is opposite to the electrical interface 630 in the left-right direction, allowing for easy access for maintenance after the compartment door 200 is opened.

[0052] In addition, the utility model also provides an immersion cooling energy storage battery cabinet, such as Figure 5 As shown, the immersion-cooled energy storage battery cabinet includes a cabinet body 700, a liquid cooling and heat dissipation system disposed within the cabinet body 700, and the liquid cooling immersion chamber described in the first aspect. The cabinet body 700 is provided with a mounting slot on its periphery, and the liquid cooling immersion chamber is mounted within the mounting slot. The chamber door 200 is located at the notch of the mounting slot. The liquid cooling and heat dissipation system is connected to the medium inlet 130 and the medium outlet 140 via pipes. Here, the liquid cooling and heat dissipation system is also referred to as a medium heat dissipation circulation system.

[0053] The above are only specific embodiments of the present invention, but the scope of protection of the present invention is not limited thereto. Those skilled in the art should understand that the present invention includes but is not limited to the contents described in the drawings and the above specific embodiments. Any modifications that do not deviate from the functional and structural principles of the present invention are included within the scope of the claims.

Claims

1. A liquid-cooled immersion chamber, comprising a chamber body (100) and a chamber door (200), wherein the chamber body (100) has a storage space for storing a cooling medium and a plurality of battery cell assemblies (400); The warehouse body (100) comprises a plurality of warehouse plates (110) and a layer support assembly for mounting corresponding battery core assemblies; the plurality of warehouse plates (110) enclose a storage space with an opening; the opening is located on the peripheral side of the warehouse body (100), and the warehouse door (200) is sealed and connected to the opening; and is characterized in that: The liquid-cooled immersion chamber further comprises a support frame (300) arranged outside the chamber body (100), the support frame (300) being connected to the outer surface of the chamber plate (110); and the layer support assembly is arranged on the inner surface of the chamber plate.

2. The liquid-cooled immersion chamber according to claim 1, characterized in that: The plurality of storage plates (110) include two support plates (111) arranged opposite to each other, wherein the support plates (111) extend from the bottom to the top of the accommodating space; and the support frame (300) is in contact with the outer surface of the support plates (111).

3. The liquid-cooled immersion chamber according to claim 2, characterized in that: The layer support assembly comprises a plurality of support portions (112); the plurality of support portions (112) are arranged on opposite inner surfaces of the two support plates (111); the plurality of support portions (112) have different heights; and two opposite support portions (112) at the same height are used to support the same battery cell assembly (400).

4. The liquid-cooled immersion chamber according to claim 3, characterized in that: The plurality of bin plates (110) include a first bin plate (113) opposite to the opening; one side of the two support plates (111) respectively forms a portion of the opening, and the other side is respectively connected to the first bin plate (113); the support portion (112) extends from the opening toward the first bin plate (113).

5. The liquid-cooled immersion chamber according to claim 2, characterized in that: It also includes a plurality of partitions for placing the battery core components (400); the plurality of partitions are spaced apart in the height direction of the accommodation space; the partitions correspond to two opposite support portions (112) located at the same height, and both sides of the partitions are respectively mounted on the corresponding support portions (112).

6. The liquid-cooled immersion chamber according to claim 1, characterized in that: The opening has an annular outer flange (121), and the periphery of the bin door (200) is sealedly connected to the outer flange (121).

7. The liquid-cooled immersion chamber according to claim 1, characterized in that: The support frame (300) comprises a plurality of annular frames (310) arranged at intervals, and a plurality of connecting bars (320) located between the plurality of annular frames (310), wherein the two ends of the connecting bars (320) respectively connect two adjacent annular frames (310); the annular frames (310) are polygonal, and each side of the annular frames (310) is in contact with the corresponding storage plate (110).

8. The liquid-cooled immersion chamber according to any one of claims 1 to 7, characterized in that: The silo body (100) is provided with a medium inlet (130) and a medium outlet (140); the medium inlet (130) is communicated with the bottom of the accommodating space, and the medium outlet (140) is communicated with the top of the accommodating space; The liquid-cooled immersion tank further includes a liquid distribution pipe arranged at the bottom of the accommodation space; The liquid distribution pipe has a main pipe (510) and a plurality of branch pipes (520) connected to the main pipe (510), and the branch pipes (520) are provided with a plurality of liquid outlet holes spaced apart in their extending direction; the main pipe (510) is connected to the medium inlet (130); and the medium inlet (130) is connected to the bottom of the accommodating space through the plurality of liquid outlet holes on the liquid distribution pipe.

9. The liquid-cooled immersion chamber according to claim 8, characterized in that: The silo body (100) is further provided with at least one of a pressure relief valve (610), a liquid injection port (620), and an electrical interface (630); the pressure relief valve (610), the liquid injection port (620), and the electrical interface (630) are all arranged at the top of the silo body (100).

10. An immersion cooling energy storage battery cabinet, comprising a cabinet body (700), a liquid cooling and heat dissipation system arranged in the cabinet body (700), and a liquid cooling immersion chamber according to claim 8 or 9; a mounting groove is provided on the peripheral side of the cabinet body (700), characterized in that: The liquid-cooling immersion chamber is installed in the installation slot; the chamber door (200) is located at the slot opening of the installation slot; and the liquid-cooling heat dissipation system is connected to the medium inlet (130) and the medium outlet (140) respectively through pipelines.

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