Electrical cabinet

Abstract

The electrical cabinet comprises a cabinet body assembly and a door body assembly, the cabinet body assembly comprises a cabinet main body, the cabinet main body is provided with a containing cavity and an opening communicated with the containing cavity, the cabinet main body is provided with a first side and a second side which are adjacent, and the opening is formed in the first side of the cabinet main body; the door body assembly comprises a door main body, and the door main body is pivotally connected to the cabinet main body, so that the door main body can be switched between an opening state for opening the opening and a closing state for closing the opening; the door body assembly further comprises a cabinet side hinge, a door side hinge and a rotating shaft, the end, provided with the first shaft hole, of the cabinet side hinge is connected to the first side of the cabinet body through an extension part, and the end, close to the first side, of the extension part extends towards the other end of the extension part. According to the electrical cabinet, embedded door opening can be achieved, and interference in the door opening process is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of electrical equipment, and in particular to an electrical cabinet. Background Art

[0002] In the related art, the door of an electrical cabinet is usually thicker due to the need to carry more components. However, when multiple electrical cabinets are placed side by side, the doors of the electrical cabinets are prone to interference during the door opening process. Utility Model Content

[0003] Based on this, it is necessary to provide an electrical cabinet to address the problem that thicker door bodies in the related art are prone to interference during the door opening process.

[0004] The present application provides an electrical cabinet, comprising:

[0005] A cabinet assembly includes a cabinet body, wherein the cabinet body is provided with a receiving cavity and an opening communicating with the receiving cavity, the cabinet body having a first side and a second side adjacent to each other, and the opening is provided on the first side of the cabinet body;

[0006] a door assembly comprising a door body, the door body being pivotally connected to the cabinet body so as to enable the door body to switch between an open state for opening the opening and a closed state for closing the opening;

[0007] Wherein, the door assembly further comprises a cabinet side hinge, a door side hinge and a rotating shaft;

[0008] The cabinet side hinge is provided on the cabinet body, the door side hinge is provided on the door body, the cabinet side hinge is provided with a first shaft hole, and the door side hinge is provided with a second shaft hole;

[0009] The rotating shaft is pivotally connected to the first shaft hole and the second shaft hole;

[0010] One end of the cabinet-side hinge where the first shaft hole is set is connected to the first side of the cabinet body through an extension portion, and one end of the extension portion close to the first side extends toward the other end of the extension portion.

[0011] In some embodiments, one end of the cabinet side hinge where the first shaft hole is provided and the extension portion are integrally formed; or

[0012] The extension portion is constructed as a reinforced sheet metal, and the cabinet side hinge has a mounting end and an axial hole end that are relatively arranged. The mounting end is connected to an end of the reinforced sheet metal away from the first side, and the first axial hole is arranged at the axial hole end.

[0013] In some embodiments, the door body has a first surface, and in the closed state, the first surface faces away from the surface of the first side of the cabinet body;

[0014] The cabinet body has a third side disposed opposite to the second side, and the second side is closer to the cabinet side hinge than the third side;

[0015] The distance between the axis of the pivot shaft of the door body and the plane where the first surface is located is less than or equal to the distance between the axis of the pivot shaft of the door body and the surface of the second side of the cabinet body.

[0016] In some embodiments, the door body has a first surface and a second surface adjacent to each other, and in the closed state, the first surface faces away from the surface of the first side of the cabinet body;

[0017] The boundary between the first surface and the second surface is an arc transition.

[0018] In some embodiments, the door assembly further comprises a liquid cooling unit mounted on the door body;

[0019] The liquid cooling unit is at least partially embedded in the surface of the door body facing the first side.

[0020] In some embodiments, the door assembly has a connecting end and a free end opposite to each other, and the connecting end is connected to the cabinet assembly; the connecting end and / or the free end are provided with an avoidance recess to avoid the cabinet assembly and / or the door assembly of the adjacent electrical cabinet during rotation.

[0021] In some embodiments, the free end has a first top corner close to one side of the cabinet assembly; the avoidance recess includes a first avoidance recess provided at the first top corner.

[0022] In some embodiments, the door body is provided with an installation cavity that passes through the door body, and the door body has an abutment surface located around the installation cavity, and the abutment surface is configured to abut with the first side; the door body assembly also includes a liquid cooling unit installed on the door body, the liquid cooling unit is installed in the installation cavity, and in the closed state, a part of the liquid cooling unit extends into the accommodating cavity; the avoidance recess includes a second avoidance recess formed by combining the abutment surface and the part of the liquid cooling unit extending into the accommodating cavity, so that the part of the liquid cooling unit extending into the accommodating cavity is spaced apart from the inner side wall of the cabinet body.

[0023] In some embodiments, the cabinet assembly also includes a protruding plate connected to the cabinet body, which protrudes in a direction away from the first side; the protruding plate is arranged on the side of the cabinet side hinge and the door side hinge facing away from the door body to cover the cabinet side hinge and the door side hinge.

[0024] In some embodiments, the connecting end has a second top corner close to one side of the cabinet body; the avoidance recess includes a third avoidance recess arranged at the second top corner; in the closed state, the protruding plate is located in the third avoidance recess, and along the protruding direction of the protruding plate, the protruding plate is spaced apart from the inner wall of the third avoidance recess.

[0025] In some embodiments, a partition is provided in the accommodating cavity to separate the accommodating cavity into a battery compartment and an electrical compartment; the door body assembly also includes a liquid cooling unit installed on the door body, and in the closed state, a portion of the liquid cooling unit extends into the accommodating cavity, and a groove is provided on the side of the liquid cooling unit facing the accommodating cavity, the position of the groove corresponds to the position of the partition, and the groove can accommodate a portion of the partition.

[0026] In some embodiments, the door assembly further includes an outer cover and a liquid cooling unit installed on the door body, the outer cover is provided on a side of the door body facing away from the cabinet body, and the outer cover shields the liquid cooling unit.

[0027] The electrical cabinet provided herein has a first axial hole provided on the cabinet-side hinge, one end of which is connected to the first side of the cabinet body via an extension, and the extension's end proximal to the first side extends toward the other end of the extension. This allows the first axial hole to be positioned away from the first side, meaning the axis of the door body's pivot axis is offset outward. This allows the door body assembly to be thicker, reducing the distance between the axis of the door body's pivot axis and the surface of the door body facing away from the first side, thereby achieving recessed door opening and avoiding interference during the door opening process. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 A three-dimensional diagram of an electrical cabinet in an embodiment of the present application is shown.

[0029] Figure 2 A three-dimensional diagram of an electrical cabinet in another embodiment of the present application is shown.

[0030] Figure 3 A schematic diagram of the open state of the door assembly of the electrical cabinet in one embodiment of the present application is shown.

[0031] Figure 4 An exploded view of an electrical cabinet in one embodiment of the present application is shown.

[0032] Figure 5A cross-sectional view of two electrical cabinets arranged side by side in one embodiment of the present application is shown.

[0033] Figure 6 Shown Figure 5 A partial enlarged view of point Ⅰ in the middle.

[0034] Figure 7 A three-dimensional view of a cabinet side hinge in one embodiment of the present application is shown.

[0035] Figure 8 and Figure 9 Three-dimensional views of the cabinet side hinges in two other embodiments of the present application are shown respectively.

[0036] Figure 10 A cross-sectional view of two electrical cabinets arranged side by side in one embodiment of the present application is shown.

[0037] Figure 11 Shown Figure 10 A partial enlarged view of point II in the middle.

[0038] Figure 12 Shown Figure 10 A partial enlarged view of point III in the middle.

[0039] Figure 13 An exploded view of a door assembly in one embodiment of the present application is shown.

[0040] Figure 14 An exploded view of a door assembly in another embodiment of the present application is shown.

[0041] Figure 15 A top view of an energy storage system in one embodiment of the present application is shown.

[0042] Figure 16 Shown Figure 15 Cross-section of the energy storage system.

[0043] Description of Figure Numbers:

[0044] 1. Energy storage system; 10. Electrical cabinet; 20. Cabinet assembly; 20a. First side; 20b. Second side; 21. Cabinet body; 211. Accommodation cavity; 211a. Battery compartment; 211b. Electrical compartment; 212. Opening; 213. Partition; 22. Protruding plate; 30. Door assembly; 30a. First side; 30b. Second side; 30c. Rounded corner; 30d. Connecting end; 30d1. Third avoidance recess; 30e. Self- From the end; 30e1, the first avoidance recess; 31, the door body; 311, the installation cavity; 312, the abutment surface; 32, the liquid cooling unit; 321, the second avoidance recess; 322, the groove; 33, the cabinet side hinge; 331, the installation end; 332, the shaft hole end; 333, the first shaft hole; 334, the extension; 34, the door side hinge; 35, the rotating shaft; 36, the reinforced sheet metal; 37, the outer cover; 38, the left door seal; 39, the right door seal. DETAILED DESCRIPTION

[0045] To make the above-mentioned objects, features, and advantages of the present application more clearly understood, the specific embodiments of the present application are described in detail below with reference to the accompanying drawings. The following description sets forth many specific details to facilitate a full understanding of the present application. However, the present application can be implemented in many other ways than those described herein, and those skilled in the art can make similar improvements without violating the scope of the present application. Therefore, the present application is not limited to the specific embodiments disclosed below.

[0046] In the description of this application, it should be understood that if the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. appear, the orientation or position relationship indicated by these terms is based on the orientation or position relationship shown in the accompanying drawings, which is only for the convenience of describing this application and simplifying the description, and does 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 this application.

[0047] In addition, if the terms "first" or "second" appear, these terms are used for descriptive purposes only and should not be understood to indicate or imply relative importance or implicitly specify the number of technical features indicated. Therefore, a feature specified as "first" or "second" may explicitly or implicitly include at least one of such features. In the description of this application, if the term "plurality" appears, "plurality" means at least two, for example, two, three, etc., unless otherwise specifically defined.

[0048] In this application, unless otherwise specified or limited, the terms "mounted," "connected," "connected," "fixed," etc., should be interpreted broadly. For example, these terms may refer to fixed connections, removable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediary; and internal communication between two components or interaction between two components, unless otherwise specified. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0049] In this application, unless otherwise expressly specified or limited, if a first feature is described as being "above" or "below" a second feature, or similar descriptions, this may mean that the first and second features are in direct contact, or that the first and second features are in indirect contact through an intermediate medium. Furthermore, when a first feature is described as being "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is described as being "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0050] It should be noted that if an element is referred to as being "fixed to" or "disposed on" another element, it may be directly on the other element or there may be an intermediate element. If an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be an intermediate element. If any, the terms "vertical", "horizontal", "upper", "lower", "left", "right" and similar expressions used in this application are for illustrative purposes only and do not represent the only embodiment.

[0051] In the related art, the door of an electrical cabinet is usually thicker due to the need to carry more components (such as liquid cooling units, etc.). However, when multiple electrical cabinets are placed side by side, the doors of the electrical cabinets are prone to interference during the door opening process.

[0052] In order to solve the problem that thicker door bodies are prone to interference during the door opening process, the present application designs an electrical cabinet that can realize embedded door opening and avoid interference during the door opening process.

[0053] Figure 1 A three-dimensional diagram of a liquid-cooled electrical cabinet in one embodiment of the present application is shown. Figure 2 A three-dimensional diagram of a liquid-cooled electrical cabinet in another embodiment of the present application is shown. Figure 3 A schematic diagram of the open state of the door assembly of a liquid-cooled electrical cabinet in one embodiment of the present application is shown. Figure 4 An exploded view of a liquid-cooled electrical cabinet in one embodiment of the present application is shown. Figure 5 A cross-sectional view of two electrical cabinets arranged side by side in one embodiment of the present application is shown. Figure 6 Shown Figure 5 A partial enlarged view of point Ⅰ in the middle.

[0054] See Figure 1 and Figure 2 An electrical cabinet 10 provided in one embodiment of the present application includes a cabinet assembly 20 and a door assembly 30 .

[0055] Combine Figure 1 and Figure 3 The cabinet assembly 20 includes a cabinet body 21, which is provided with a receiving cavity 211 and an opening 212 communicating with the receiving cavity 211. The cabinet body 21 has a first side 20a and a second side 20b adjacent to each other, and the opening 212 is provided on the first side 20a. Thus, components such as the battery pack can enter and exit the receiving cavity 211 through the opening 212.

[0056] Combine Figure 1 、 Figure 3 and Figure 4 The door assembly 30 includes a door body 31 , which is pivotally connected to the cabinet body 21 so that the door body 31 can switch between an open state in which the opening 212 is opened and a closed state in which the opening 212 is closed.

[0057] See Figure 4-Figure 6 The door assembly 30 further includes a cabinet-side hinge 33, a door-side hinge 34, and a rotating shaft 35. The cabinet-side hinge 33 is disposed on the cabinet body 21, and the door-side hinge 34 is disposed on the door body 31. The cabinet-side hinge 33 is provided with a first shaft hole 333, and the door-side hinge 34 is provided with a second shaft hole. The rotating shaft 35 is rotatably connected to the first shaft hole 333 and the second shaft hole, so that the door body 31 is pivotally connected to the cabinet body 21.

[0058] One end of the first axis hole 333 of the cabinet-side hinge 33 is connected to the first side 20a of the cabinet body 21 via an extension 334. The extension 334 extends from one end of the extension 334, which is closer to the first side 20a, toward the other end of the extension 334. This allows the first axis hole 333 to be positioned away from the first side 20a, meaning that the axis of the pivot shaft of the door body 31 is offset outward. This allows the door assembly 30 to be thicker, and the distance L1 between the axis of the pivot shaft of the door body 31 and the surface of the door body 31 facing away from the first side 20a (i.e., the first surface 30a described below) can be reduced, thereby achieving embedded door opening and avoiding interference during the door opening process.

[0059] The door assembly 30 further includes a liquid cooling unit 32 mounted on the door body 31 . The liquid cooling unit 32 is at least partially embedded in a surface of the door body 31 facing the first side 20 a .

[0060] Specifically, the orthographic projection of the liquid cooling unit 32 on the plane where the second surface 30b is located includes a first projection located within the orthographic projection range of the door body 31 on the plane where the second surface 30b is located, and a second projection located outside the orthographic projection range of the door body 31 on the plane where the second surface 30b is located; wherein the area of ​​the first projection is greater than the area of ​​the second projection.

[0061] Based on this, the outward-facing side of the door body 31 in the closed state is the first side 30a, and the side adjacent to the first side 30a is the second side 30b. The plane on which the second side 30b is located serves as a reference surface. Most of the orthographic projection of the liquid cooling unit 32 on the reference surface is located within the orthographic projection range of the door body 31 on the reference surface, and a small portion is located outside the orthographic projection range of the door body 31 on the reference surface. That is, most of the liquid cooling unit 32 along the thickness direction of the door body 31 is embedded in the door body 31, and a small portion extends outside the door body 31. In this way, most of the liquid cooling unit 32 is located in the space reserved for the door body 31, and only a small portion may occupy the space in the accommodating cavity 211, reducing the space occupied in the cabinet and improving the utilization rate of the cabinet space, thereby more fully improving the energy density of the liquid-cooled energy storage system.

[0062] In some embodiments, combined Figure 1 、 Figure 3 、 Figure 5 and Figure 6 The door body 31 has a first surface 30a and a second surface 30b adjacent to each other. In the closed state, the first surface 30a faces away from the surface of the first side 20a of the cabinet body 21. In the closed state, the first surface 30a is parallel to the surface of the first side 20a of the cabinet body 21, and the second surface 30b is parallel to the surface of the second side 20b of the cabinet body 21. Based on this, the outer surface of the door body 31 has a regular shape and occupies a small space.

[0063] In some embodiments, the cabinet body 21 has a third side (not shown) disposed opposite the second side 20b. The second side 20b is closer to the cabinet-side hinge 33 than the third side. The distance L1 between the axis of the pivot shaft of the door body 31 and the plane in which the first surface 30a lies is less than or equal to the distance L2 between the axis of the pivot shaft of the door body 31 and the surface of the second side 20b of the cabinet body 21. Based on this, the present application offsets the position of the axis of the pivot shaft of the door body 31 on the door assembly 30, such that the axis of the pivot shaft of the door body 31 is closer to the first surface 30a of the door body 31 and farther from the second surface 30b of the door body 31. Therefore, when the door assembly 30 is opened at a 90° angle, the first surface 30a of the door body 31 rotates to be parallel to the surface of the second side 20b of the cabinet body 21. Due to the offset of the axis of the pivot shaft, the first surface 30a of the door body 31 does not extend beyond the plane in which the second side 20b of the cabinet body 21 lies. Since the first shaft hole 333 is located away from the first side 20 a , that is, the axis of the pivot shaft of the door body 31 is offset outward, the electrical cabinet 10 can open the door at a larger angle.

[0064] In some embodiments, a chamfer 30c is provided at the junction between the first surface 30a and the second surface 30b. Based on this, when multiple electrical cabinets 10 are arranged side by side, since the first surface 30a of the door assembly 30 opened at a 90° angle will not exceed the plane where the second side 20b of the cabinet body 21 is located, and the planes where the second sides 20b of adjacent cabinet bodies 21 are located will not interfere with each other, there is usually a certain distance between the two. Therefore, when the door assembly 30 is opened at an angle greater than 90°, such as at an angle of 120°, the first surface 30a of the door assembly 30 is not likely to interfere with the adjacent electrical cabinet 10. In this way, the space utilization rate within the cabinet body 21 is improved. At the same time, there is no need to increase the gap between adjacent electrical cabinets 10, which improves the space utilization rate of the station layout, thereby achieving a simultaneous improvement in the energy density of the energy storage system 1 and the station-level energy density.

[0065] To ensure high site-level energy density, the gap between adjacent electrical cabinets 10 can be limited. Optionally, the gap between adjacent electrical cabinets 10 is less than or equal to 10 mm, for example, 8 mm. This allows multiple electrical cabinets 10 to be tightly arranged, and interference between adjacent cabinets 10 is less likely to occur.

[0066] In some embodiments, when closed, the first portion of the liquid cooling unit 32 is located within the accommodating cavity 211, and the orthographic projection of the first portion on the plane of the second surface 30b is the second projection. In other words, the majority of the liquid cooling unit 32 is embedded within the door body 31, with a small portion extending into the accommodating cavity 211. This reduces the space occupied within the cabinet and improves its utilization, thereby further enhancing the energy density of the liquid-cooled energy storage system.

[0067] Optionally, a small portion of the liquid cooling unit 32 extends into the accommodating cavity 211, and the thickness of this small portion can specifically be the thickness of the door body insulation layer, while the rest is located outside the accommodating cavity 211, for example, embedded in the door body 31, thereby maximizing the space utilization rate in the cabinet.

[0068] See Figure 4-Figure 6 Optionally, the door assembly 30 further includes a cabinet-side hinge 33, a door-side hinge 34, and a rotating shaft 35. The cabinet-side hinge 33 is provided on the cabinet body 21, and the door-side hinge 34 is provided on the door body 31. The cabinet-side hinge 33 is provided with a first shaft hole 333, and the door-side hinge 34 is provided with a second shaft hole. The rotating shaft 35 is rotatably connected to the first shaft hole 333 and the second shaft hole.

[0069] Figure 7 A three-dimensional view of a cabinet side hinge in one embodiment of the present application is shown. Figure 8 and Figure 9 Shown are three-dimensional views of cabinet side hinges in two other embodiments of the present application.

[0070] See Figure 7 , wherein the cabinet side hinge 33 is provided with one end of the first axis hole 333 and the extension portion 334 forming an integrally formed structure. Specifically, the cabinet side hinge 33 has a mounting end 331 and an axis hole end 332 arranged opposite to each other, the mounting end 331 is connected to the first side 20a, the first axis hole 333 is provided at the axis hole end 332, and the extension portion 334 is connected between the mounting end 331 and the axis hole end 332, that is, one end of the cabinet side hinge 33 is connected to the first side 20a, and the other end of the cabinet side hinge 33 extends in a direction away from the first side 20a. Based on this, the setting of the axis hole end 332 makes the position of the first axis hole 333 away from the first side 20a, that is, the axis of the pivot axis of the door body 31 is offset outward. In this way, when the door body assembly 30 is relatively thick, the distance L1 between the axis of the pivot axis of the door body 31 and the first surface 30a can be reduced, thereby realizing embedded door opening and avoiding interference in the door opening process.

[0071] Of course, the present application is not limited to this. The extension portion can also be constructed as a reinforced sheet metal 36, with the cabinet-side hinge 33 having a mounting end 331 and an axis hole end 332 disposed opposite each other. The mounting end 331 is connected to the end of the reinforced sheet metal 36 away from the first side 20a, and the first axis hole 333 is provided at the axis hole end 332. Similarly, the first axis hole 333 can be positioned away from the first side 20a, that is, the axis of the pivot axis of the door body 31 is offset outward. In this way, if the door body assembly 30 is relatively thick, the distance L1 between the axis of the pivot axis of the door body 31 and the first surface 30a can be reduced, thereby achieving embedded door opening and avoiding interference during the door opening process.

[0072] For example, see Figure 8The cabinet side hinge 33 can be fixed to the cabinet body 21 by welding through a local reinforcement sheet metal 36 to improve the connection strength.

[0073] For example, see Figure 9 The multiple cabinet side hinges 33 in the multiple hinge structures can be welded and fixed to the cabinet body 21 through a whole piece of reinforced sheet metal 36 to improve the connection strength.

[0074] The cabinet side hinge 33 and the door side hinge 34 can adopt the hinge structure in the prior art, and hinges of corresponding strength can be selected or customized according to needs.

[0075] Optionally, multiple sets of hinge structures may be arranged at intervals along the height direction to improve the stability of the connection between the door assembly 30 and the cabinet assembly 20 .

[0076] See Figure 5 Optionally, the door assembly 30 has a connecting end 30d and a free end 30e opposite to each other, and the connecting end 30d is connected to the cabinet assembly 20. The connecting end 30d and the free end 30e may be provided with an avoidance recess to avoid the cabinet assembly 20 and / or the door assembly 30 of an adjacent electrical cabinet 10 during rotation, so that there is no interference between the door assembly 30 of one electrical cabinet 10 and the two adjacent electrical cabinets 10, and there is no interference between the door assembly 30 of the electrical cabinet 10 and its cabinet assembly 20, achieving a door opening angle of 0° to a preset angle (e.g., 120°), ensuring that installation and maintenance operations such as pulling out the pack can be performed.

[0077] Figure 10 A cross-sectional view of two electrical cabinets 10 arranged side by side in one embodiment of the present application is shown. Figure 11 Shown Figure 10 A partial enlarged view of point II in the middle. Figure 12 Shown Figure 10 A partial enlarged view of point III in the middle.

[0078] See Figure 10 and Figure 11 Furthermore, the free end 30e has a first top corner adjacent to one side of the cabinet assembly 20, and the avoidance recess includes a first avoidance recess 30e1 provided at the first top corner. Based on this, taking the example of multiple electrical cabinets 10 arranged from left to right, with the axis of the pivot axis of the door body 31 located on the right, by providing the first avoidance recess 30e1 at the first top corner, the actual top corner of the left inner side of the door assembly 30 is shifted to the right. This ensures that during the door opening process, the movement path of point A, where the door assembly 30 is most likely to interfere with the left electrical cabinet 10, does not extend beyond the left side of the electrical cabinet 10, achieving embedded door opening and avoiding interference with the left electrical cabinet 10.

[0079] Combine Figure 3 and Figure 11Optionally, the door body 31 is provided with a mounting cavity 311 that passes through the door body 31 (see Figure 13 ), and the door body 31 has an abutment surface 312 located around the mounting cavity 311. The abutment surface 312 is configured to abut against the first side 20a. The liquid cooling unit 32 is mounted in the mounting cavity 311, and when closed, a portion of the liquid cooling unit 32 extends into the accommodating cavity 211. The relief recess includes a second relief recess 321 formed by combining the abutment surface 312 and the portion of the liquid cooling unit 32 extending into the accommodating cavity 211. This ensures that the portion of the liquid cooling unit 32 extending into the accommodating cavity 211 is spaced from the inner sidewall of the cabinet body 21.

[0080] See Figure 10-12 It should be noted that second avoidance recesses 321 can be provided on both the left and right sides of the door assembly 30. Based on this, during the door opening process, a safety gap H is left between point B on the door assembly 30, which is most likely to interfere with the left door seal 38 inside the cabinet. Specifically, a safety gap H is left between the left edge of the liquid cooling unit 32 near the cabinet assembly 20 and the left door seal 38. A safety gap H is left between point C on the door assembly 30, which is most likely to interfere with the right door seal 39 inside the cabinet. Specifically, a safety gap H is left between the edge of the door body 31 near the right door seal 39 and the right door seal 39, thereby preventing interference during door opening.

[0081] Combine Figure 4 and Figure 12 In some embodiments, the cabinet assembly 20 further includes a protruding plate 22 connected to the cabinet body 21, the protruding plate 22 protruding in a direction away from the first side 20a. The protruding plate 22 is provided on the side of the cabinet-side hinge 33 and the door-side hinge 34 that is away from the door body 31 to shield the cabinet-side hinge 33 and the door-side hinge 34. The protruding plate 22 can be integrally formed with the cabinet body 21 or separately formed. In this way, when the door assembly 30 is closed, the gap between the door assembly 30 and the cabinet body 21 is small, and when the door is opened, the hinge side does not appear to be suspended in the air.

[0082] Combine Figure 10 and Figure 12 Optionally, the connecting end 30d has a second top corner close to one side of the cabinet body, and the avoidance recess includes a third avoidance recess 30d1 provided at the second top corner. In the closed state, the protruding plate 22 is located in the third avoidance recess 30d1, and along the protruding direction of the protruding plate 22, the protruding plate 22 and the inner wall of the third avoidance recess 30d1 are spaced apart. Based on this, a safety gap H is left between the point D on the door body assembly 30 that is most likely to interfere with the protruding plate 22 and the protruding plate 22, that is, a safety gap H is left between the edge of the third avoidance recess 30d1 on the hinge side of the door body assembly 30 and the protruding plate 22. At the same time, when opened to a certain large angle (such as 120°), the edge of the third avoidance recess 30d1 does not interfere with the cabinet side hinge 33.

[0083] See Figure 3and Figure 4 In some embodiments, a partition 213 is provided within the accommodating chamber 211 to separate the accommodating chamber 211 into a battery compartment 211a and an electrical compartment 211b. For example, the battery compartment 211a is located at the top to facilitate top discharge, and the electrical compartment 211b is located at the bottom to facilitate bottom wiring.

[0084] Furthermore, in the closed state, a portion of the liquid cooling unit 32 extends into the accommodating cavity 211, and a groove 322 is provided on the side of the liquid cooling unit 32 facing the accommodating cavity 211. The position of the groove 322 corresponds to the position of the partition 213, and the groove 322 can accommodate a portion of the partition 213. Among them, the depth of the groove 322 is greater than the inner convex dimension of the liquid cooling unit 32, and the inner convex dimension of the liquid cooling unit 32 is preferably equivalent to the thickness of the original door body insulation layer. During installation, the liquid cooling unit 32 passes through the installation cavity 311 on the door body 31 from the outside to the inside until the liquid cooling unit 32 is against the door body 31 and the installation is sealed. The door body 31 forms a partition design with the cabinet assembly 20.

[0085] Based on this, even if there is a risk of arcing in the power modules in the cabinet, the safety of the electrical cabinet 10 is improved because the battery compartment 211a and the electrical compartment 211b are separated.

[0086] Figure 13 An exploded view of a door assembly in one embodiment of the present application is shown. Figure 14 An exploded view of a door assembly in another embodiment of the present application is shown.

[0087] Combine Figure 4 、 Figure 13 and Figure 14 In some embodiments, the door assembly 30 further includes an outer cover 37, which is provided on the side of the door body 31 facing away from the cabinet body 21, and the outer cover 37 shields the liquid cooling unit 32. The size of the outer cover 37 may be slightly larger than the size of the protruding liquid cooling unit 32. For example, the size of the outer cover 37 is the same as the size of the door body 31. The material of the outer cover 37 may be steel, aluminum, or hard weather-resistant plastic. Compared with the prior art method of installing the liquid cooling unit 32 in a protruding manner, which requires setting a gap and sealing glue on the front of the electrical cabinet 10, the present application can make the front appearance of the electrical cabinet 10 neater.

[0088] Optionally, a rounded corner 30c at the junction between the first surface 30a and the second surface 30b of the door assembly 30 may be formed on the door body 31 (see FIG. Figure 14 ), can also be formed on the outer cover 37 (see Figure 13Rounded corners 30c can be provided at the intersections between the second surface 30b and the first surface 30a on both the left and right sides of the door assembly 30. Based on this, features such as the arc columns located on the cabinet assembly 20 in the related art are transferred to the door assembly 30, so that the overall appearance of the electrical cabinet 10 remains unchanged or changes minimally.

[0089] Figure 15 A top view of an energy storage system in one embodiment of the present application is shown. Figure 16 Shown Figure 15 Cross-section of the energy storage system.

[0090] See Figure 15 and Figure 16 The energy storage system 1 includes a plurality of electrical cabinets 10 according to the above embodiments arranged in sequence.

[0091] The technical features of the above-mentioned embodiments can be combined arbitrarily. In order to make the description concise, not all possible combinations of the technical features in the above-mentioned embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0092] The above-described embodiments merely represent several implementation methods of the present application. While the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that a person of ordinary skill in the art may make various modifications and improvements without departing from the spirit of the present application, and these modifications and improvements fall within the scope of protection of the present application. Therefore, the scope of protection of the present patent application shall be determined by the appended claims.

Claims

1. An electrical cabinet, characterized in that: include: A cabinet assembly includes a cabinet body, wherein the cabinet body is provided with a receiving cavity and an opening communicating with the receiving cavity, the cabinet body having a first side and a second side adjacent to each other, and the opening is provided on the first side of the cabinet body; a door assembly comprising a door body, the door body being pivotally connected to the cabinet body so as to enable the door body to switch between an open state for opening the opening and a closed state for closing the opening; Wherein, the door assembly further comprises a cabinet side hinge, a door side hinge and a rotating shaft; The cabinet side hinge is provided on the cabinet body, the door side hinge is provided on the door body, the cabinet side hinge is provided with a first shaft hole, and the door side hinge is provided with a second shaft hole; The rotating shaft is pivotally connected to the first shaft hole and the second shaft hole; One end of the cabinet-side hinge where the first shaft hole is set is connected to the first side of the cabinet body through an extension portion, and one end of the extension portion close to the first side extends toward the other end of the extension portion.

2. The electrical cabinet according to claim 1, characterized in that One end of the cabinet side hinge where the first shaft hole is provided and the extension portion are integrally formed; or The extension portion is constructed as a reinforced sheet metal, and the cabinet side hinge has a mounting end and an axial hole end that are relatively arranged. The mounting end is connected to an end of the reinforced sheet metal away from the first side, and the first axial hole is arranged at the axial hole end.

3. The electrical cabinet according to claim 1, characterized in that The door body has a first surface, and in the closed state, the first surface faces away from the surface of the first side of the cabinet body; The cabinet body has a third side disposed opposite to the second side, and the second side is closer to the cabinet side hinge than the third side; The distance between the axis of the pivot shaft of the door body and the plane where the first surface is located is less than or equal to the distance between the axis of the pivot shaft of the door body and the surface of the second side of the cabinet body.

4. The electrical cabinet according to claim 1, characterized in that The door body has a first surface and a second surface adjacent to each other, and in the closed state, the first surface faces away from the surface of the first side of the cabinet body; The boundary between the first surface and the second surface is an arc transition.

5. The electrical cabinet according to claim 1, characterized in that: The door assembly further includes a liquid cooling unit mounted on the door body; The liquid cooling unit is at least partially embedded in the surface of the door body facing the first side.

6. The electrical cabinet according to claim 1, characterized in that The door assembly has a connecting end and a free end opposite to each other, and the connecting end is connected to the cabinet assembly; The connecting end and / or the free end is provided with an avoidance recess so as to avoid the cabinet assembly and / or the door assembly of the adjacent electrical cabinet during the rotation process.

7. The electrical cabinet according to claim 6, characterized in that The free end has a first top angle close to one side of the cabinet assembly; The avoidance recess includes a first avoidance recess provided at the first vertex.

8. The electrical cabinet according to claim 6, characterized in that: The door body is provided with a mounting cavity penetrating the door body, and the door body has an abutment surface located around the mounting cavity, the abutment surface being configured to abut against the first side; The door assembly further comprises a liquid cooling unit mounted on the door body, the liquid cooling unit being mounted in the mounting cavity, and in the closed state, a portion of the liquid cooling unit extending into the accommodating cavity; The avoidance recess includes a second avoidance recess formed by combining the abutting surface and the portion of the liquid cooling unit extending into the accommodating cavity, so that the portion of the liquid cooling unit extending into the accommodating cavity is spaced apart from the inner side wall of the cabinet body.

9. The electrical cabinet according to claim 6, characterized in that: The cabinet assembly further includes a protruding plate connected to the cabinet body, wherein the protruding plate protrudes in a direction away from the first side; The convex plate is arranged on a side of the cabinet side hinge and the door side hinge away from the door body to shield the cabinet side hinge and the door side hinge.

10. The electrical cabinet according to claim 9, characterized in that: The connecting end has a second top corner close to one side of the cabinet; The avoidance recess includes a third avoidance recess provided at the second vertex; In the closed state, the convex plate is located in the third avoidance recess, and along the protruding direction of the convex plate, the convex plate is spaced apart from the inner wall of the third avoidance recess.

11. The electrical cabinet according to any one of claims 1 to 10, characterized in that: A partition is provided in the accommodating cavity to separate the accommodating cavity into a battery compartment and an electrical compartment; The door body assembly also includes a liquid cooling unit installed on the door body. In the closed state, a portion of the liquid cooling unit extends into the accommodating cavity, and a groove is provided on the side of the liquid cooling unit facing the accommodating cavity. The position of the groove corresponds to the position of the partition, and the groove can accommodate a portion of the partition.

12. The electrical cabinet according to any one of claims 1 to 10, characterized in that: The door assembly further includes an outer cover and a liquid cooling unit installed on the door body. The outer cover is arranged on a side of the door body away from the cabinet body, and the outer cover shields the liquid cooling unit.

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