High voltage box and energy storage system

Abstract

The application provides a high-voltage box and an energy storage system, comprising: a shell comprising a plurality of side plates; at least one of the side plates is provided with a heat dissipation opening penetrating in a first direction, the first direction being a thickness direction of the side plate; a water blocking assembly is arranged on the side plate and located above the heat dissipation opening; the water blocking assembly comprises a water blocking plate arranged on an outer surface of the side plate and extending away from the shell. The high-voltage box and the energy storage system provided by the application have higher safety and reliability and a longer service life.

Description

Technical Field

[0001] This application relates to the field of energy storage battery technology, and in particular to a high-voltage box and energy storage system. Background Technology

[0002] In energy storage containers, in addition to the battery pack, a high-voltage box electrically connected to the battery pack is also required. The high-voltage box contains heat-generating devices (e.g., fuses), resulting in a high internal temperature during operation. To meet heat dissipation requirements, ventilation windows need to be installed on the outer shell of the high-voltage box.

[0003] However, the ventilation window reduces the waterproofing capability of the high-voltage box casing. If liquid enters the high-voltage box through the ventilation window, it may affect the normal operation of the high-voltage box. Utility Model Content

[0004] In view of this, the purpose of this application is to propose a high-voltage box and energy storage system to at least partially solve the problem that it is difficult to balance the heat dissipation capacity and waterproof performance of the high-voltage box.

[0005] To achieve the above objectives, a first aspect of this application provides a high-voltage box, comprising: a housing including a plurality of side plates; at least one of the side plates having a heat dissipation opening extending along a first direction, the first direction being the thickness direction of the side plate; a water-blocking assembly disposed on the side plate and located above the heat dissipation opening; the water-blocking assembly including a water-blocking plate disposed on the outer surface of the side plate and extending away from the housing.

[0006] Optionally, the angle between the lower surface of the baffle plate along the thickness direction and the outer surface of the side plate is θ, where 30°≤θ≤90°.

[0007] Optionally, the baffle plate extends along the second direction and its end extends beyond the heat dissipation opening; the second direction, the first direction, and the height direction of the housing are perpendicular to each other.

[0008] Optionally, both ends of the baffle plate extend along the second direction to the edge of the side plate.

[0009] Optionally, the water-blocking assembly further includes a connecting plate, which is attached to the outer surface of the side plate; the connecting plate includes a first edge near the heat dissipation opening, and the water-blocking plate is connected to the first edge; the connecting plate is welded to the side plate, and weld marks are formed along the edges of the connecting plate other than the first edge.

[0010] Optionally, the side plate is provided with a protruding structure that protrudes from the outer surface of the side plate along the first direction; along the height direction of the shell, the orthographic projection of the baffle plate covers the protruding structure.

[0011] Optionally, the extension distance of the baffle plate along the first direction is W, where 10mm≤W≤20mm.

[0012] Optionally, the side plate includes a main body, a flow guide plate, and a waterproof plate. The waterproof plate is configured as the open end of the housing. The waterproof plate is spaced along the first direction on the inner side of the main body and connected to the main body through the flow guide plate, and is configured as a Z-shaped structure. The high-voltage box also includes a cover, which is sealed to the open end through a sealing element.

[0013] Optionally, along the height direction of the housing, the cover is provided with a through mounting hole, and the orthographic projection of the mounting hole is located on the guide plate body; the high-pressure box also includes a bolt and a nut, the nut being sealed to the guide plate body, and the bolt passing through the mounting hole and threadedly connected to the nut.

[0014] Optionally, the edge of the waterproof plate away from the flow guide plate is bent outward to form a sealing fold, which abuts against the sealing element.

[0015] Based on the same inventive concept, the second aspect of this application also provides an energy storage system, including a high-voltage box as described in the first aspect.

[0016] As can be seen from the above, the high-voltage box and energy storage system provided in this application, by setting heat dissipation openings on the side plate, help improve the heat exchange efficiency between the high-voltage box and the outside environment, help quickly reduce the internal temperature of the casing, ensure that the devices installed inside the casing can operate in a more suitable temperature environment, increase the device lifespan by more than 30%, and reduce power consumption by more than 5%. A baffle plate is set above the heat dissipation openings. The baffle plate not only blocks liquid falling towards the heat dissipation openings but also directs liquid on the baffle plate outwards, preventing liquid from entering the casing through the heat dissipation openings, thus improving the safety, reliability, and lifespan of the high-voltage box. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in this application or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a partial schematic diagram of the high-voltage box according to an embodiment of this application; Figure 2 This is a top view of a portion of the high-voltage box according to an embodiment of this application; Figure 3 This is a side view of the high-voltage box according to an embodiment of this application; Figure 3a for Figure 3 An enlarged schematic diagram of section D in the middle; Figure 4 This is a schematic diagram of the front view of the high-voltage box according to an embodiment of this application; Figure 4a for Figure 4 An enlarged schematic diagram of section E in the middle; Figure 5 Showing Figure 4 A partial cross-sectional view of the FF section.

[0019] Explanation of reference numerals in the attached figures: 100. Housing; 110. Side plate; 111. Main body; 112. Waterproof plate; 1121. Sealing fold; 113. Airflow guide plate; 110a. First side plate; 110b. Second side plate; 110c. Third side plate; 110d. Fourth side plate; 120. Heat dissipation opening; 130. Opening end; 200, Water-blocking assembly; 210, Water-blocking plate; 220, Connecting plate; 221, First edge; 230, Weld stamp; 300. Protruding structure; 400. Shell cover; 410. Mounting through hole; 500, Seals; 600, Bolts; 700, Nuts. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with specific embodiments and the accompanying drawings.

[0021] It should be noted that, unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components described in these embodiments do not limit the scope of this application.

[0022] At the same time, it should be understood that, for ease of description, the dimensions of the various parts shown in the accompanying drawings are not drawn according to actual scale.

[0023] The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the scope of this application and its application or use.

[0024] It should be noted that, unless otherwise defined, the technical or scientific terms used in the embodiments of this application should have the ordinary meaning understood by one of ordinary skill in the art to which this application pertains. The terms "first," "second," and similar terms used in the embodiments of this application do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Terms such as "comprising" or "including" mean that the element or object preceding the word encompasses the elements or objects listed after the word and their equivalents, without excluding other elements or objects. Terms such as "connected" or "linked" are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. Terms such as "upper," "lower," "left," and "right" are only used to indicate relative positional relationships; when the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0025] The applicant's research found that there are two main types of liquids in the energy storage container that can adversely affect the high-voltage box: one is the condensate formed on the battery pack, and the other is the coolant leaking from the liquid cooling pipes.

[0026] Regarding condensation, in energy storage containers, battery packs are often positioned close to the high-voltage box for easy cable connections and routing. When the battery packs are above the high-voltage box, the box generates heat during operation, which can cause condensation to form on the exposed metal parts of adjacent battery packs. As this condensation drips down, it may enter the high-voltage box through its ventilation windows, potentially damaging internal components.

[0027] Regarding the leaking coolant from the liquid cooling pipes, when there is a malfunction in the liquid cooling pipes, the coolant inside the liquid cooling pipes may seep out and drip onto the high-voltage box, and then enter the high-voltage box through the heat dissipation window on the high-voltage box, causing adverse effects on the internal components.

[0028] Based on the above, it can be seen that the liquids that can adversely affect the high-voltage box inside the energy storage container mainly drip from above onto the high-voltage box. In other words, if the liquid can be blocked above the heat dissipation window, the risk of liquid entering the high-voltage box through the heat dissipation window can be reduced.

[0029] In view of this, embodiments of this application provide a high-voltage box.

[0030] Figure 1 A partial schematic diagram of the high-voltage box is shown.

[0031] like Figure 1 The high-voltage box provided in this application embodiment includes: a housing 100, including a plurality of side plates 110; at least one side plate 110 is provided with a direction along a first direction (e.g., Figure 1 A heat dissipation opening 120 (in the Y direction) is provided, with the first direction being the thickness direction of the side plate 110; a water baffle assembly 200 is disposed on the side plate 110 and located above the heat dissipation opening 120; the water baffle assembly 200 includes a water baffle plate 210, which is disposed on the outer surface of the side plate 110 and extends away from the housing 100.

[0032] It should be noted that, Figure 1 In the structure shown, the heat dissipation opening 120 is provided on the side plate 110 arranged along the Y direction, therefore, for Figure 1 The structure has a first direction of Y. If the heat dissipation opening 120 is located on the side plate 110 located along the X direction, then the first direction is the X direction.

[0033] For example, the housing 100 may include a rectangular base plate, each edge of which is connected to a side plate 110, and the base plate and the multiple side plates 110 together form a housing 100 with a top opening.

[0034] For example, one or more heat dissipation openings 120 may be provided on the side plate 110, and each heat dissipation opening 120 may include a through hole penetrating the side plate 110 or multiple through holes arranged in an array on the side plate 110.

[0035] For example, the baffle 210 may extend straight along the first direction or extend downwards along the first direction.

[0036] For example, the water-blocking assembly 200 and the side plate 110 can be connected by welding, bonding or fasteners (e.g., screws).

[0037] For example, a cooling fan is provided inside the housing 100.

[0038] In this embodiment, the heat dissipation opening 120 on the side plate 110 allows air circulation between the inside of the housing 100 and the outside, thereby improving the heat dissipation efficiency of the internal components of the high-voltage box. A baffle plate 210 is provided above the heat dissipation opening 120. When liquid drips onto the heat dissipation opening 120, the baffle plate 210 can block the dripping liquid, thus protecting the heat dissipation opening 120. Simultaneously, the baffle plate 210 can guide the liquid falling onto it, allowing the liquid to bypass the heat dissipation opening 120 along the baffle plate 210.

[0039] The high-voltage box provided in this embodiment, by providing a heat dissipation opening 120 on the side plate 110, helps to improve the heat exchange efficiency between the inside of the high-voltage box and the outside environment, helps to quickly reduce the internal temperature of the housing 100, and ensures that the devices installed inside the housing 100 can operate in a more suitable temperature environment, increasing the device lifespan by more than 30% and reducing power consumption by more than 5%. A baffle plate 210 is provided above the heat dissipation opening 120. The baffle plate 210 not only blocks liquid falling into the heat dissipation opening 120, but also drains the liquid on the baffle plate 210 outward, preventing liquid from entering the housing 100 through the heat dissipation opening 120, which helps to improve the safety, reliability and lifespan of the high-voltage box.

[0040] In conjunction with the foregoing, the housing 100 includes multiple side plates 110. Depending on the heat dissipation requirements of the high-voltage box, the heat dissipation opening 120 can be provided on one of the side plates 110 or simultaneously on multiple side plates 110.

[0041] Specifically, Figure 2 A top-view schematic diagram of the high-voltage box is shown.

[0042] by Figure 2 Taking the structure and orientation shown as an example, the high-voltage box includes a first side plate 110a located at the top, a second side plate 110b located at the bottom, a third side plate 110c located on the left side, and a fourth side plate 110d located on the right side.

[0043] If the housing 100 only needs to have a heat dissipation opening 120 on one side plate 110: the heat dissipation opening 120 can be provided on the second side plate 110b, and correspondingly, the baffle 210 is also provided on the second side plate 110b, that is, located on the second side plate 110b. Figure 2 Position B in the middle; the heat dissipation opening 120 can also be set on the third side plate 110c, and correspondingly, the water baffle 210 is also set on the third side plate 110c, that is, located at position B. Figure 2 Position A in the diagram; the heat dissipation opening 120 can also be located on the fourth side plate 110d, and correspondingly, the water baffle 210 is also located on the fourth side plate 110d, that is, located at position A. Figure 2 The position C in the text.

[0044] If the housing 100 needs to have heat dissipation openings 120 on the two side plates 110: the heat dissipation openings 120 can be provided on the third side plate 110c and the fourth side plate 110d, and correspondingly, the baffle plate 210 is also provided on the third side plate 110c and the fourth side plate 110d, that is, located on the third side plate 110c and the fourth side plate 110d. Figure 2 Positions A and C in the diagram; the heat dissipation opening 120 can also be set on the second side plate 110b and the third side plate 110c, and correspondingly, the water baffle 210 is also set on the second side plate 110b and the third side plate 110c, that is, located at positions A and C in the diagram; Figure 2Positions A and B in the diagram; the heat dissipation opening 120 can also be set on the second side plate 110b and the fourth side plate 110d, and correspondingly, the water baffle 210 is also set on the second side plate 110b and the fourth side plate 110d, that is, located at positions A and B in the diagram; the heat dissipation opening 120 can also be set on the second side plate 110b and the fourth side plate 11 Figure 2 Positions B and C in the diagram.

[0045] If the housing 100 needs to have heat dissipation openings 120 on the three side plates 110: the heat dissipation openings 120 can be provided on the second side plate 110b, the third side plate 110c, and the fourth side plate 110d. Correspondingly, the water baffle 210 is also provided on the second side plate 110b, the third side plate 110c, and the fourth side plate 110d, that is, located on... Figure 2 Positions A, B, and C in the diagram.

[0046] Figure 3 A side view of the high-voltage box is shown. Figure 3a Showing Figure 3 An enlarged schematic diagram of part D in the middle.

[0047] like Figure 3 and Figure 3a In some embodiments, the angle between the lower surface of the baffle plate 210 along the thickness direction and the outer surface of the side plate 110 is θ, where 30°≤θ≤90°.

[0048] For example, θ can be 30°, 40°, 50°, 60°, 70°, 80° or 90°.

[0049] If θ is too large, the baffle plate 210 will form an upwardly tilted structure, and the upper surface of the baffle plate 210 along the thickness direction and the side plate 110 will form a water storage structure. Liquid on the baffle plate 210 may be retained in the water storage structure, which is not conducive to the rapid discharge of liquid. If θ is too small, when the outward extension of the baffle plate 210 is too small, the baffle plate 210 cannot effectively shield and protect the heat dissipation opening 120; when the outward extension of the baffle plate 210 is too large, it will block the heat dissipation opening 120, hindering the flow of air through the heat dissipation opening 120, which will have an adverse effect on the heat dissipation efficiency of the high-voltage box.

[0050] To avoid the aforementioned problems, this embodiment designs θ to be 30°≤θ≤90°. The baffle plate 210 can effectively shield and protect the heat dissipation opening 120 without blocking it, ensuring smooth gas flow through the opening and thus improving the heat dissipation efficiency of the high-voltage box. Simultaneously, the downward tilt of the baffle plate 210 facilitates the rapid discharge of liquid falling on it along the slope, preventing liquid remaining on the baffle plate 210 from flowing into the heat dissipation opening 120.

[0051] Figure 4A schematic diagram of the front view of the high-voltage box is shown.

[0052] like Figure 1 and Figure 4 In some embodiments, the baffle 210 is along a second direction (e.g., Figure 4 Extending in the X direction, and with its end extending beyond the heat dissipation opening 120; the second direction, the first direction, and the height direction of the housing 100 (e.g., in the X direction) and the end extending beyond the heat dissipation opening 120; Figure 4 The Z-direction in the middle is perpendicular to each other.

[0053] For example, when at least two heat dissipation openings 120 are provided on the same side plate 110, the baffle plate 210 and the heat dissipation openings 120 can be provided in a one-to-one correspondence, or the same baffle plate 210 can correspond to multiple heat dissipation openings 120.

[0054] For example, when the same baffle 210 corresponds to multiple heat dissipation openings 120, Figure 4 Taking the structure and orientation shown as an example, the left end of the baffle plate 210 extends beyond the heat dissipation opening 120 located on the left side, and the right end of the baffle plate 210 extends beyond the heat dissipation opening 120 located on the right side.

[0055] Setting the end of the baffle plate 210 to extend beyond the heat dissipation opening 120 ensures that the baffle plate 210 can cover the entire area of ​​the heat dissipation opening 120 along the second direction. This helps to provide more comprehensive protection for the heat dissipation opening 120 through the baffle plate 210, thereby further reducing the risk of liquid entering the interior of the housing 100 through the heat dissipation opening 120.

[0056] like Figure 1 and Figure 4 In some embodiments, the two ends of the baffle 210 extend along the second direction to the edge of the side plate 110.

[0057] In this embodiment, the baffle plate 210 can cover the entire area of ​​the outer surface of the side plate 110 located below it along the second direction, which can not only provide more comprehensive protection for the heat dissipation opening 120, but also provide protection for other structural components or openings provided on the side plate 110, further reducing the risk of liquid entering the interior of the housing 100.

[0058] Figure 4a Showing Figure 4 An enlarged schematic diagram of section E in the middle.

[0059] like Figure 3 , Figure 4 and Figure 4aIn some embodiments, the water-blocking assembly 200 further includes a connecting plate 220, which is attached to the outer surface of the side plate 110; the connecting plate 220 includes a first edge 221 near the heat dissipation opening 120, and the water-blocking plate 210 is connected to the first edge 221; the connecting plate 220 is welded to the side plate 110, and weld marks 230 are formed along the other edges of the connecting plate 220 except for the first edge 221.

[0060] It should be noted that in this embodiment, the connecting plate 220 is placed above the baffle plate 210, which can prevent the formation of a water storage structure between the first edge 221 and the outer surface of the side plate 110, and help prevent liquid from remaining in the water storage structure.

[0061] by Figure 4a Taking the structure and orientation shown as an example, the connecting plate 220 includes an upper edge, a left edge, and a right edge in addition to the first edge 221 located below, and the solder mark 230 extends along the left edge, the upper edge, and the right edge.

[0062] In this embodiment, except for the first edge 221 that connects to the baffle plate 210, the other edges of the connecting plate 220 are fully welded with solder marks 230. On the one hand, this ensures that the baffle plate 210 can form a reliable connection with the side plate 110, and that the baffle plate 210 can continuously and stably protect the heat dissipation opening 120. On the other hand, it prevents liquid from remaining between the edge of the connecting plate 220 and the outer surface of the side plate 110, which facilitates the rapid discharge of liquid and helps reduce the risk of liquid flowing along the edge of the connecting plate 220 to the heat dissipation opening 120.

[0063] like Figure 3a and Figure 4 In some embodiments, the side plate 110 is provided with a protruding structure 300 that protrudes from the outer surface of the side plate 110 along a first direction; the orthogonal projection of the baffle plate 210 covers the protruding structure 300 along the height direction of the housing 100.

[0064] For example, the protruding structure 300 can be fixedly connected to or detachably connected to the side plate 110.

[0065] For example, the protruding structure 300 can be a device or protective cover or other structural component mounted on the side plate 110.

[0066] For example, the baffle plate 210 extends beyond the protruding structure 300 along the first direction, and the vertical distance L between the free end of the baffle plate 210 and the protruding structure 300 along the first direction can be 0 to 10 mm.

[0067] It should be noted that some devices or structural components may be installed in the side plate 110, with a portion located inside the housing 100 and a portion protruding from the outer surface of the side plate 110. In this embodiment, the protruding structure 300 refers only to the portion protruding from the outer surface of the side plate 110.

[0068] The baffle plate 210, with its orthographic projection along the height direction of the housing 100, covers the protruding structure 300. This prevents liquid flowing downwards along the baffle plate 210 from falling onto the protruding structure 300, thus avoiding adverse effects on the normal operation of the protruding structure 300 (when the protruding structure 300 is a device). It also prevents liquid from entering the housing 100 through the protruding structure 300 (when the protruding structure 300 has through holes or a gap between it and the side plate 110). This helps to further improve the safety, reliability, and service life of the high-voltage box.

[0069] like Figure 3a In some embodiments, the water baffle 210 extends outward by a distance W along the first direction, where 10mm ≤ W ≤ 20mm.

[0070] For example, W can be 10mm, 11mm, 12mm, 13mm, 14mm, 15mm, 16mm, 17mm, 18mm, 19mm or 20mm.

[0071] If W is too large, the space occupied by the baffle 210 along the first direction will be too large, which will easily interfere with other structural components inside the energy storage container and increase the packaging cost of the high-voltage box. If W is too small, the baffle 210 cannot effectively shield and protect the heat dissipation opening 120, and the liquid flowing down along the baffle 210 still has the risk of entering the housing 100 through the heat dissipation opening 120.

[0072] To avoid the above problems, in this embodiment, W is designed to be 10mm≤W≤20mm, which ensures that the baffle 210 can effectively shield and protect the heat dissipation opening 120. This can reduce the risk of interference between the baffle 210 and other structural components in the energy storage container, and also help reduce the packaging cost of the high-voltage box, which is conducive to mass production.

[0073] Figure 5 Showing Figure 4 A partial cross-sectional view of the FF section.

[0074] like Figure 5In some embodiments, the side plate 110 includes a main body 111, a flow guide plate 113, and a waterproof plate 112. The waterproof plate 112 is configured as the opening end 130 of the housing 100. The waterproof plate 112 is disposed at intervals along a first direction on the inner side of the main body 111 and is connected to the main body 111 through the flow guide plate 113, and is configured as a Z-shaped structure. The high-voltage box also includes a cover 400, which is sealed to the opening end 130 through a sealing member 500.

[0075] It should be noted that the seal 500 can be an elastic seal 500. The cover 400 and the waterproof plate 112 can deform the seal 500 by compressing it, thereby achieving a sealing effect.

[0076] For example, the deflector body 113 may be parallel to the horizontal plane or inclined relative to the horizontal plane.

[0077] For example, the main body 111, the flow guide plate 113, and the waterproof plate 112 can be connected by welding or integral molding.

[0078] For example, the cover 400 is a plate-like structure, and a folded edge is formed on the edge of the cover 400 that bends toward the housing 100.

[0079] For example, the seal 500 may be glued, plugged in or snapped onto the cover 400 and facing the housing 100.

[0080] For example, the cover 400 can be fixed to the housing 100 by fasteners or clamps, and the opening on the housing 100 can be sealed.

[0081] by Figure 5 Taking the structure and orientation shown as an example, the main body 111 and the waterproof plate 112 are set vertically, and the flow guide plate 113 is set horizontally.

[0082] When liquid drips onto the cover 400, the liquid will flow towards the edge of the cover 400, and there is a risk that it will flow into the interior of the housing 100 through the gap between the cover 400 and the housing 100.

[0083] To avoid the above problems, this embodiment provides a sealing element 500 between the opening end 130 of the housing 100 formed by the cover 400 and the waterproof plate 112, so that the cover 400 and the opening end 130 can be effectively sealed to prevent liquid from flowing in. On the other hand, a transverse guide plate 113 is provided between the waterproof plate 112 and the main plate 111. Liquid falling from the edge of the cover 400 will fall on the guide plate 113 and flow outward under the obstruction of the waterproof plate 112.

[0084] Of course, such as Figure 5If a side plate 110 with a heat dissipation opening 120 is provided along the liquid flow direction of the guide plate 113, the liquid will bypass the heat dissipation opening 120 under the blocking effect of the baffle plate 210 and will not enter the interior of the housing 100.

[0085] Meanwhile, by placing the waterproof plate 112 inside the main body 111, the internal space of the housing 100 is increased when the outer dimensions of the housing 100 are fixed. This allows the high-voltage box to have sufficient space for installing devices and also facilitates airflow within the high-voltage box, thus improving the heat dissipation efficiency of the high-voltage box.

[0086] like Figure 5 In some embodiments, along the height direction of the housing 100, the cover 400 is provided with a through mounting hole 410, and the orthographic projection of the mounting hole 410 is located on the guide plate body 113; the high-pressure box also includes a bolt 600 and a nut 700, the nut 700 is sealed to the guide plate body 113, and the bolt 600 passes through the mounting hole 410 and is threadedly connected to the nut 700.

[0087] For example, the nut 700 and the guide plate body 113 can be connected in a sealed manner by riveting, welding or snap-fitting.

[0088] There will inevitably be a certain assembly gap between the mounting through hole 410 and the bolt 600. Liquid dripping onto the cover 400 may flow into the housing 100 through this assembly gap.

[0089] To prevent liquid from entering the housing 100, the mounting through hole 410 is positioned to correspond to the guide plate 113 in this embodiment. After the liquid passes through the mounting through hole 410, it will drip onto the guide plate 113 and be discharged in the aforementioned manner. Simultaneously, since the nut 700 is sealed to the guide plate 113, liquid on the guide plate 113 can also be prevented from entering the housing 100 through the gap between the nut 700 and the guide plate 113.

[0090] like Figure 5 In some embodiments, the edge of the waterproof plate 112 away from the flow guide plate 113 is bent outward to form a sealing fold 1121, which abuts against the seal 500.

[0091] The sealing element 500 deforms under the pressure of the cover 400 and the waterproof plate 112 to achieve a sealing effect. It can be understood that the larger the pressure area of ​​the waterproof plate 112 on the sealing element 500, the larger the area of ​​the sealing element 500 that produces a sealing effect along the first direction, and correspondingly, the better the sealing effect.

[0092] In this embodiment, a sealing flange 1121 is provided on the waterproof plate 112, and the sealing flange 1121 abuts against the sealing element 500, which helps to increase the compression area of ​​the waterproof plate 112 against the sealing element 500, thereby improving the sealing effect of the sealing element 500 and further preventing liquid from entering the interior of the housing 100.

[0093] Meanwhile, the sealing fold 1121 extends to the outside of the waterproof plate 112, which helps to increase the opening size of the housing 100, making it easier to install devices inside the housing 100 and to maintain the devices inside the housing 100.

[0094] Based on the same inventive concept and in conjunction with the description of the high-voltage boxes in the above embodiments, this embodiment provides an energy storage system that has the corresponding technical effects of the high-voltage boxes in the above embodiments, which will not be repeated here.

[0095] An energy storage system includes a high-voltage box as described in the various embodiments above.

[0096] It should be noted that some embodiments of this application have been described above. Other embodiments are within the scope of the appended claims.

[0097] The various embodiments in this application are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. The same or similar parts between the various embodiments can be referred to each other.

[0098] The description in this application is given for illustrative purposes and is not intended to be exhaustive or to limit the application to the forms disclosed. Many modifications and variations will be apparent to those skilled in the art. The embodiments were chosen and described to better illustrate the principles and practical application of this application and to enable those skilled in the art to understand this application and design various embodiments with various modifications suitable for a particular purpose.

[0099] Those skilled in the art should understand that the discussion of any of the above embodiments is merely exemplary and is not intended to imply that the scope of this application is limited to these examples; under the concept of this application, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of the embodiments of this application as described above, which are not provided in detail for the sake of brevity.

[0100] Although this application has been described in conjunction with specific embodiments thereof, many substitutions, modifications and variations of these embodiments will be apparent to those skilled in the art from the foregoing description.

[0101] The embodiments of this application are intended to cover all such substitutions, modifications, and variations that fall within the broad scope of this application. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the embodiments of this application should be included within the protection scope of this application.

Claims

1. A high pressure cell characterized by, include: The housing includes multiple side plates; at least one of the side plates is provided with a heat dissipation opening extending along a first direction, the first direction being the thickness direction of the side plate; A water-blocking assembly is disposed on the side plate and located above the heat dissipation opening; the water-blocking assembly includes a water-blocking plate disposed on the outer surface of the side plate and extending away from the housing.

2. The high-voltage box according to claim 1, characterized in that, The angle between the lower surface of the baffle plate along its thickness direction and the outer surface of the side plate is θ, where 30°≤θ≤90°.

3. The high-voltage box according to claim 1, characterized in that, The baffle plate extends along the second direction and its end extends beyond the heat dissipation opening; the second direction, the first direction, and the height direction of the housing are perpendicular to each other.

4. The high-voltage box according to claim 3, characterized in that, Both ends of the water baffle extend along the second direction to the edge of the side plate.

5. The high-voltage box according to claim 1, characterized in that, The water-blocking assembly further includes a connecting plate, which is attached to the outer surface of the side plate; the connecting plate includes a first edge near the heat dissipation opening, and the water-blocking plate is connected to the first edge; the connecting plate is welded to the side plate, and weld marks are formed along the other edges of the connecting plate except for the first edge.

6. The high pressure cell of claim 1, wherein, The side plate is provided with a protruding structure that protrudes from the outer surface of the side plate along the first direction; along the height direction of the shell, the orthogonal projection of the baffle plate covers the protruding structure.

7. The high-voltage box according to claim 1, characterized in that, The water baffle extends a distance W along the first direction, where 10mm ≤ W ≤ 20mm.

8. The high-voltage box according to claim 1, characterized in that, The side plate includes a main body, a flow guide plate, and a waterproof plate. The waterproof plate is configured as the open end of the shell. The waterproof plate is disposed at intervals along the first direction on the inner side of the main body and is connected to the main body through the flow guide plate, and is configured as a Z-shaped structure. The high-voltage box also includes a cover, which is sealed to the open end by a sealing element.

9. The high-voltage box according to claim 8, characterized in that, Along the height direction of the housing, the housing cover is provided with a through mounting hole, and the orthographic projection of the mounting hole is located on the guide plate body; The high-voltage box also includes bolts and nuts. The nuts are sealed to the guide plate body, and the bolts pass through the mounting through hole and are threadedly connected to the nuts.

10. The high-voltage box according to claim 8, characterized in that, The edge of the waterproof panel away from the flow guide plate is bent outward to form a sealing fold, which abuts against the sealing element.

11. An energy storage system, characterized in that, Includes the high-voltage box as described in any one of claims 1 to 10.

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