Electric cabinet assembly and energy storage system with same

Abstract

The utility model discloses an electric cabinet assembly and an energy storage system with the same, and the electric cabinet assembly comprises a first housing which is provided with a first installation cavity, and the interior of the first installation cavity is suitable for the installation of a first control module; and the second shell is movably connected with the first shell, the second shell is suitable for installing a second control module, and the second control module is electrically connected with the first control module. According to the electric control box assembly designed by the utility model, the first control module and the second control module are integrated at one position, the integration level of the electric control box assembly is improved, and the first control module and the second control module are arranged in different shells, so that partition arrangement of the first control module and the second control module can be realized; the first control module and the second control module are prevented from influencing each other.

Description

Technical Field

[0001] The utility model relates to the field of energy storage systems, in particular to an electric control box assembly and an energy storage system having the same. Background Art

[0002] In related technologies, a chamber is formed inside the shell of an immersion liquid-cooled energy storage system, and structures such as the cable module, cooling module, BMS electrical box and communication module are all arranged in the chamber. In some existing technologies, the BMS electrical box and communication module are arranged in a dispersed manner, occupying too much space in the chamber and affecting the layout of other structures. In addition, the BMS electrical box and communication module are arranged in the same chamber, which will have a certain impact on each other's work. Utility Model Content

[0003] The present invention aims to address at least one of the technical problems existing in the prior art. To this end, one objective of the present invention is to provide an electric control box assembly. The electric control box assembly designed according to the present invention integrates a first control module and a second control module into one location, thereby improving the integration of the electric control box assembly. Furthermore, by arranging the first and second control modules in separate housings, the first and second control modules can be arranged in separate compartments, thereby preventing interference between the first and second control modules.

[0004] The utility model also provides an energy storage system having the above-mentioned electric control box assembly.

[0005] According to the utility model, the electric control box assembly includes: a first shell, the first shell forms a first installation cavity, the first installation cavity is suitable for installing a first control module; a second shell, the second shell is movably connected to the first shell, the second shell is suitable for installing a second control module, and the second control module is electrically connected to the first control module.

[0006] According to the electric control box assembly of the present invention, the first control module and the second control module are integrated into one place, which can reduce the space occupied by the first control module and the second control module in the energy storage system and improve the integration of the electric control box assembly. In addition, the first control module and the second control module are arranged in different shells, which can realize the partitioned arrangement of the first control module and the second control module, avoid the first control module and the second control module from affecting each other, and improve the working stability of the electric control box assembly.

[0007] According to some embodiments of the present invention, the first control module is a high-voltage module, and the second control module is a low-voltage module and / or a high-voltage module.

[0008] According to some embodiments of the present invention, the first control module is configured as a BMS module; the second control module is a low-voltage module and includes a communication module and / or a control module; or the second shell is configured as a PCS control box, and the low-voltage module and the high-voltage module are arranged inside the PCS control box.

[0009] According to some embodiments of the present invention, the second shell is provided on one side of the first shell in the thickness direction, and a mounting position is provided on the other side of the first shell in the thickness direction for connection with other structures.

[0010] According to some embodiments of the present invention, a first mounting opening is provided on the first shell, the first mounting opening is communicated with the first mounting cavity, and the second shell is movably provided on the first shell to selectively cover the first mounting opening.

[0011] According to some embodiments of the present invention, the second shell includes: a box body, a second installation cavity and a second installation port connected to the second installation cavity are formed in the box body, and the second installation cavity is suitable for installing the second control module; and a cover plate, which is movably arranged on the box body to selectively cover the second installation port.

[0012] According to some embodiments of the present invention, the first shell is provided with a first pivot portion located at the edge of the first installation opening, and the second shell is rotatably connected to the first shell via the first pivot portion.

[0013] According to some embodiments of the present invention, the box body is provided with a second pivot portion located at the edge of the second installation opening, and the cover is rotatably connected to the box body via the second pivot portion.

[0014] According to some embodiments of the present invention, the first pivoting portion and the second pivoting portion are located on the same side of the box body.

[0015] According to some embodiments of the present invention, a wire passage opening is provided on the box body to connect the second installation cavity with the first installation cavity. The wire passage opening is arranged adjacent to the first pivot portion, and an electrical connection line electrically connects the first control module with the second control module through the wire passage opening.

[0016] According to some embodiments of the present invention, the electrical control box assembly further includes: a seal, which is arranged on the periphery of the first mounting port and is suitable for abutting against the second shell; and / or the seal is arranged on the periphery of the second mounting port and is suitable for abutting against the cover plate.

[0017] According to some embodiments of the present invention, an electrical connector is provided inside the first shell, one end of the electrical connector is located in the first installation cavity and is suitable for electrical connection with the first control module, and the other end of the electrical connector extends to the outside of the first installation cavity.

[0018] The following briefly describes an energy storage system according to another embodiment of the present invention.

[0019] The energy storage system according to the present invention includes the electric control box assembly described in any one of the above embodiments. Since the energy storage system according to the present invention is provided with the electric control box assembly described in the above embodiments, the energy storage system has a higher degree of integration.

[0020] According to some embodiments of the present invention, the energy storage system includes: a box body, in which a first storage cavity and a second storage cavity are formed, and the first storage cavity is used to accommodate an electrical control box assembly; a battery module, which is arranged in the second storage cavity and electrically connected to the electrical control box assembly; and a box cover, which is arranged on the box body, and the first storage cavity is arranged between the box cover and the second storage cavity.

[0021] According to some embodiments of the present invention, a cooling medium is stored in the second storage cavity, and the cooling medium is suitable for direct contact with the battery module.

[0022] According to some embodiments of the present invention, the second control module is located on a side of the first control module facing the box cover.

[0023] According to some embodiments of the present invention, the energy storage system further includes: a cooling assembly, wherein the cooling assembly is disposed in the box cover or the first storage cavity.

[0024] According to some embodiments of the present invention, an accommodating space suitable for the arrangement of the cooling assembly is defined between the electrical control box assembly, the box cover and the battery module, and the cooling assembly is in contact with the battery module through the accommodating space.

[0025] To sum up, according to the electrical control box assembly of the present invention, the first control module and the second control module are integrated into one place, which can reduce the space occupied by the first control module and the second control module in the energy storage system and improve the integration of the electrical control box assembly. In addition, the first control module and the second control module are arranged in different shells, which can realize the partitioned arrangement of the first control module and the second control module, avoid the first control module and the second control module from affecting each other, and improve the working stability of the electrical control box assembly.

[0026] Additional aspects and advantages of the present invention will be given in part in the following description and will become apparent from the following description or learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:

[0028] Figure 1 It is a diagram of the internal structure of the energy storage system according to an embodiment of the present utility model.

[0029] Figure 2 It is a structural diagram of an electric control box assembly according to an embodiment of the present utility model.

[0030] Figure 3 It is a structural schematic diagram of a PCS control box in which the second shell is a PCS control box according to an embodiment of the present utility model.

[0031] Figure 4 yes Figure 2 Structural schematic diagram of the second shell of the middle structure flipping left to open the first installation cavity.

[0032] Figure 5 yes Figure 2 Structural schematic diagram of the second shell of the middle structure flipped rightward to open the first installation cavity.

[0033] Figure 6 yes Figure 2 Schematic diagram of the structure in which the second shell of the middle structure is flipped upward to open the first installation cavity.

[0034] Figure 7 yes Figure 2 Schematic diagram of the structure in which the second shell of the middle structure is flipped downward to open the first installation cavity.

[0035] Figure 8 It is a schematic diagram of the internal structure of the second shell according to an embodiment of the present utility model.

[0036] Figure 9 It is a schematic diagram of the internal structure of the first shell according to an embodiment of the present utility model.

[0037] Reference numerals:

[0038] 1000. Energy storage system;

[0039] 1. Electric control box components;

[0040] 10. First housing; 10a. First mounting cavity; 11. First control module; 12. First pivoting portion; 13. Electrical connector; 14. Control switch; 15. Inlet adapter; 16. Outlet adapter.

[0041] 20. Second housing; 20a. Second mounting cavity; 21. Second control module; 22. Second pivoting portion; 23. Box body; 23a. Wire passage; 24. Cover plate; 24a. Compression groove; 25. Second locking catch; 26. Third locking catch;

[0042] 30. Sealing element; 40. Heat dissipation hole;

[0043] 2. Box body; 3. Cable module; 4. Box cover; 5. Cooling assembly. DETAILED DESCRIPTION

[0044] The following describes embodiments of the present invention in detail. Examples of the embodiments 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 below with reference to the accompanying drawings are exemplary and are intended only to explain the present invention and are not to be construed as limiting the present invention.

[0045] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships 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 should not be understood as a limitation on the present invention.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the quantity of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0047] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or mutual communication; direct connection or indirect connection through an intermediate medium; internal communication between two components or interaction between two components. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to the specific circumstances.

[0048] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Moreover, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0049] In related technologies, a chamber is formed inside the shell of an immersion liquid-cooled energy storage system, and structures such as the cable module, cooling module, BMS electrical box and communication module are all arranged in the chamber. In some existing technologies, the BMS electrical box and communication module are arranged in a dispersed manner, occupying too much space in the chamber and affecting the layout of other structures. In addition, the BMS electrical box and communication module are arranged in the same chamber, which will have a certain impact on each other's work.

[0050] Reference below Figures 1-9 An electric control box assembly 1 according to an embodiment of the present invention is described.

[0051] like Figures 1-9 As shown, the electric control box assembly 1 according to the present invention includes: a first shell 10 and a second shell 20. The first shell 10 is formed with a first installation cavity 10a, and the first installation cavity 10a is suitable for installing a first control module 11; the second shell 20 is movably connected to the first shell 10, and the second shell 20 is suitable for installing a second control module 21, and the second control module 21 is electrically connected to the first control module 11. Here, the electric control box assembly 1 designed according to the present invention can be applied to an energy storage system 1000. The energy storage system 1000 is provided with a cable module 3. The electric control box assembly 1 is provided with multiple control modules, and the multiple control modules include at least a battery management system (BMS module). The BMS module is electrically connected to the cable module 3. The multiple control modules can also include a communication module or a process control system (PCS control module). The communication module and the PCS control module can both be electrically connected to the BMS module. In addition, the second shell 20 can be movably connected to the first shell 10, which facilitates maintenance operations on the first control module 11 and the second control module 21, and the first shell 10 and the second shell 20 connected to each other can integrate multiple control modules in one place, reducing the space occupied by multiple control modules in the energy storage system 1000.

[0052] According to the electric control box assembly 1 of the present invention, the first control module 11 and the second control module 21 are integrated into one place, which can reduce the space occupied by the first control module 11 and the second control module 21 in the energy storage system 1000, and improve the integration of the electric control box assembly 1. In addition, the first control module 11 and the second control module 21 are arranged in different shells, which can realize the partitioned arrangement of the first control module 11 and the second control module 21, avoid the first control module 11 and the second control module 21 from affecting each other, and improve the working stability of the electric control box assembly 1.

[0053] According to some embodiments of the present invention, the first control module 11 is a high-voltage module, and the second control module 21 is a low-voltage module. Here, the first control module 11 in the first housing 10 can be a high-voltage module (such as a BMS module, etc.), and the second control module 21 in the second housing 20 can be a low-voltage module or a high-voltage module. Multiple modules are arranged in different housings to achieve a partitioned layout of different modules, avoid mutual interference between modules, and improve the operating stability of the electric control box assembly 1.

[0054] According to some embodiments of the present invention, the first control module 11 is configured as a BMS module. The second control module 21 is a low-voltage module and includes a communication module and / or a control module; or the second shell 20 is configured as a PCS control box, and a low-voltage module and a high-voltage module are provided inside the PCS control box. Here, the high-voltage module in the first shell 10 can be a BMS module for electrical connection with the cable module 3. The low-voltage module in the second shell 20 can be a communication module and / or a control module to communicate and electrically connect with the BMS module; the second shell 20 can also be a PCS control box, and the PCS control box is provided with a low-voltage module and a high-voltage module to communicate and electrically connect with the BMS module, which can be designed according to actual needs.

[0055] According to some embodiments of the present invention, a second housing 20 is provided on one side of the first housing 10 in the thickness direction, and a mounting position is provided on the other side of the first housing 10 in the thickness direction for connection to other structures. Here, the first housing 10 and the second housing 20 are arranged along the thickness direction, which can realize the partitioned and layered arrangement of the first control module 11 and the second control module 21, and improve the integration of the electric control box assembly 1, reduce the overall volume of the electric control box assembly 1, and thus further reduce the overall space occupied by the electric control box in the energy storage space. The second housing 20 is located on one side of the first housing 10 in the thickness direction, and the other side of the first housing 10 in the thickness direction can be connected to other structures. In some embodiments, the electric control box assembly 1 is provided in the energy storage system 1000, and a partition is provided inside the energy storage system 1000. One side of the partition is used to store battery modules, and the other side of the partition is used to accommodate structures such as the electric control box assembly 1. The electric control box assembly 1 is connected to the partition through the mounting position on the first housing 10 to achieve fixed installation of the electric control box assembly 1.

[0056] According to some embodiments of the present invention, a first mounting opening is provided on the first housing 10, the first mounting opening being in communication with the first mounting cavity 10a, and a second housing 20 is movably provided on the first housing 10 to selectively cover the first mounting opening. Here, the second housing 20 is movably provided on the first housing 10 to selectively cover the first mounting opening, and the second housing 20, on which the second control module 21 is installed, serves as a cover for the first housing 10, on which the first control module 11 is installed. This improves the integration of the electric control box assembly 1, can reduce the number of components of the electric control box assembly 1, and can reduce the space occupied by the electric control box assembly 1 in the stacking direction of the first housing 10 and the second housing 20, thereby further reducing the overall space occupied by the electric control box within the energy storage space. When the first control module 11 needs to be repaired, the second housing 20 is moved to open the first mounting opening, thereby exposing the first control module 11. By moving the second housing 20, maintenance and debugging of the first control module 11 can be achieved.

[0057] The electric control box assembly 1 integrates the first control module 11 and the second control module 21 in one place, which can reduce the space occupied by the first control module 11 and the second control module 21 in the energy storage system 1000, and the second shell 20 installed with the second control module 21 acts as the cover of the first shell 10 installed with the first control module 11, which can further improve the integration of the electric control box assembly 1 and reduce the space occupied by the electric control box assembly 1 in the stacking direction of the first shell 10 and the second shell 20, thereby further reducing the overall space occupied by the electric control box in the internal space of the energy storage space.

[0058] According to some embodiments of the present invention, Figure 8 As shown, the second housing 20 includes a box body 23 and a cover plate 24. A second mounting cavity 20a and a second mounting opening communicating with the second mounting cavity 20a are formed within the box body 23. The second mounting cavity 20a is suitable for mounting the second control module 21. The cover plate 24 is movably mounted on the box body 23 to selectively cover the second mounting opening. Specifically, the cover plate 24 is movably mounted on the box body 23 to selectively cover the second mounting opening. When the second control module 21 needs to be repaired, the cover plate 24 is moved to open the second mounting opening, thereby exposing the second control module 21. By moving the cover plate 24, maintenance and debugging of the second control module 21 can be performed, making the operation simple and easy to implement.

[0059] In some embodiments, to ensure the safety of the operator, a limit switch is provided on the second shell 20. When the second shell 20 moves and opens the first mounting port, the limit switch feeds back and shuts off the first control module 11, or when the cover 24 moves and opens the second mounting port, the limit switch feeds back and shuts off the second control module 21.

[0060] In some embodiments, the multiple control modules include a BMS module and a communication module. Compared to the BMS module, the communication module requires more frequent maintenance. Therefore, the communication module is placed in the second housing 20, which is easier to open. The communication module can be maintained by opening the cover 24. The control switches 14 of the BMS module are located on the outer surface of the first housing 10. When the BMS module needs to be debugged or maintained, the external control switches 14 can be debugged to maintain or use the BMS module without opening the first installation cavity 10a. This facilitates operation and reduces the number of times the second housing 20 needs to be opened and closed, preventing water from entering or damaging the BMS module, thereby ensuring the protective effect of the first housing 10 on the BMS module.

[0061] In some embodiments, a first lock buckle is provided on the first shell 10 and a second lock buckle 25 is provided on the second shell 20 . The first lock buckle and the second lock buckle 25 are locked and matched to lock and fix the first shell 10 and the second shell 20 .

[0062] In some embodiments, a heat dissipation hole 40 is provided on the surface of the first housing 10 to connect the first installation cavity 10 a with the outside, thereby facilitating heat dissipation of the first control module 11 .

[0063] In some embodiments, a water retaining eave is provided on the top of the heat dissipation hole 40 to prevent external water from seeping into the interior of the first housing 10 through the heat dissipation hole 40 .

[0064] In some embodiments, a third lock buckle 26 is provided on the box body 23 and a fourth lock buckle is provided on the cover plate 24 . The third lock buckle 26 and the fourth lock buckle are locked together to lock and fix the box body 23 and the cover plate 24 .

[0065] In some embodiments, a heat dissipation hole 40 is provided on the surface of the second housing 20 to connect the second installation cavity 20 a with the outside, thereby facilitating heat dissipation of the second control module 21 .

[0066] In some embodiments, a water retaining eave is provided on the top of the heat dissipation hole 40 to prevent external water stains from seeping into the interior of the second shell 20 through the heat dissipation hole 40 .

[0067] According to some embodiments of the present invention, Figure 3 As shown, the first housing 10 is provided with a first pivot portion 12 located at the edge of the first mounting opening, and the second housing 20 is rotatably connected to the first housing 10 via the first pivot portion 12. Specifically, the second housing 20 flips over to open and close the first mounting opening, making it convenient for operators to maintain and debug the first control module 11. Here, the first pivot portion 12 can be set at any position near the first mounting opening as required. For example, when facing the first mounting opening, if the first pivot portion 12 is located on the left side of the first mounting opening, as shown in FIG. Figure 4As shown, the second housing 20 can be flipped to the left to open the first mounting opening; if the first pivoting portion 12 is located on the right side of the first mounting opening, as shown Figure 5 As shown, the second housing 20 can be flipped to the right to open the first mounting opening; if the first pivot portion 12 is located on the upper side of the first mounting opening, as shown Figure 6 As shown, the second housing 20 can be flipped upward to open the first mounting opening; if the first pivot portion 12 is located at the lower side of the first mounting opening, as shown Figure 7 As shown, the second housing 20 can be flipped downward to open the first installation opening. The flipping direction of the second housing 20 can be designed according to the requirements of the switch direction and maintenance method of the electric control box assembly 1 during actual application, and is not limited to the above four flipping directions.

[0068] Of course, the way in which the first shell 10 and the second shell 20 move and cooperate is not limited to the flip opening and closing method in the above embodiment. The installation and combination methods between the first shell 10 and the second shell 20 are also more diverse. For example, if there is insufficient space in the stacking direction of the first shell 10 and the second shell 20, the second shell 20 can be expanded up and down or left and right to open the first installation port, or the second shell 20 can be moved horizontally to open the first installation port. The way in which the first shell 10 and the second shell 20 move and cooperate can be specifically designed according to the scenario of the energy storage system 1000 and is not limited here.

[0069] According to some embodiments of the present invention, the box body 23 is provided with a second pivot portion 22 located at the edge of the second mounting opening, and the cover plate 24 is rotatably connected to the box body 23 via the second pivot portion 22. Specifically, the cover plate 24 is flipped to open and close the second mounting opening, making it easier for operators to maintain and debug the second control module 21.

[0070] According to some embodiments of the present invention, Figure 5 As shown, the first pivot portion 12 and the second pivot portion 22 are located on the same side of the box body 23. Specifically, the first pivot portion 12 can be set at any position adjacent to the first mounting opening as required, and the second pivot portion 22 can be set at any position adjacent to the second mounting opening as required. However, to facilitate operation by the operator, the first pivot portion 12 and the second pivot portion 22 are preferably arranged in parallel, and the first pivot portion 12 and the second pivot portion 22 are located on the same side of the box body 23, so that the direction of opening the first mounting opening by flipping the second shell 20 is consistent with the direction of opening the second mounting opening by flipping the cover plate 24, which is ergonomic.

[0071] Of course, the flipping direction of the second shell 20 and the flipping direction of the cover 24 can be designed according to the requirements of the switch direction and maintenance method of the electric control box assembly 1 during actual application, and are not limited here.

[0072] In some embodiments, the second pivot portion 22 is disposed in the second installation cavity 20a. At this time, the second pivot portion 22 is hidden inside the second installation cavity 20a, preventing the second pivot portion 22 from being exposed, which can improve the aesthetics of the second shell 20 and avoid water leakage at the connection gap where the second pivot portion 22 is provided in the second shell 20, thereby reducing the risk of water leakage.

[0073] According to some embodiments of the present invention, Figure 9 As shown, the box body 23 is provided with a wire passage 23a that connects the second mounting cavity 20a with the first mounting cavity 10a. The wire passage 23a is located adjacent to the first pivot portion 12. The electrical connection wires pass through the wire passage 23a to electrically connect the first control module 11 with the second control module 21. Specifically, the surface of the box body 23 that faces the cover plate 24 is provided with a wire passage 23a so that the electrical connection wires connected to the second control module 21 can enter the second mounting cavity 20a and connect to the first control module 11. The placement of the wire passage 23a adjacent to the first pivot portion 12 shortens the length of the electrical connection wires. Furthermore, during the process of flipping the second housing 20 to open and close the first mounting cavity, the stability of the connection between the electrical connection wires and the first control module 11 and the second control module 21 is not significantly affected.

[0074] According to some embodiments of the present invention, the electric control box assembly 1 further includes a seal 30, which is disposed on the periphery of the first mounting opening and adapted to abut against the second housing 20; and / or the seal 30 is disposed on the periphery of the second mounting opening and adapted to abut against the cover 24. When the second housing 20 covers the first mounting opening, the second housing 20 and the first housing 10 jointly squeeze the seal 30, deforming the seal 30 to seal the gap between the second housing 20 and the first housing 10, thereby preventing water from entering or damaging the first control module 11 and ensuring the protective effect of the first housing 10 on the first control module 11.

[0075] In some embodiments, a seal 30 is also provided on the periphery of the second mounting port. When the cover plate 24 covers the second mounting port, the cover plate 24 and the box body 23 jointly squeeze the seal 30. At this time, the seal 30 is deformed to block the gap between the cover plate 24 and the box body 23 to prevent the second control module 21 from being flooded or damaged, thereby ensuring the protective effect of the second shell 20 on the second control module 21.

[0076] In some embodiments, the seal 30 arranged on the periphery of the second mounting port is located inside the second shell 20, and a compression groove 24a is provided on the cover plate 24. The seal 30 is suitable for being accommodated in the compression groove 24a, which can effectively avoid the influence of external water seepage on the sealing of the second shell 20.

[0077] According to some embodiments of the present invention, Figure 9As shown, an electrical connector 13 is disposed within the first housing 10. One end of the electrical connector 13 is located in the first mounting cavity 10a and is adapted to electrically connect to the first control module 11. The other end of the electrical connector 13 extends outside the first mounting cavity 10a. In some embodiments, the first control module 11 is located within the first mounting cavity 10a and electrically connected to a structure located outside the first mounting cavity 10a and within the first housing 10 via the electrical connector 13. This facilitates wiring within the first housing 10 and eliminates the risk of water seepage into the first mounting cavity 10a due to wiring.

[0078] In some embodiments, the electrical connector 13 is configured as a copper busbar.

[0079] In some embodiments, the first control module 11 includes two BMS modules, and the two BMS modules are fixed in the first installation cavity 10 a via adapter plates.

[0080] In some embodiments, the upper and lower parts of the first shell 10 are the cable input adapter 15 and the cable output adapter 16, respectively, so that the wiring of the first shell 10 does not need to pass through the first installation port, avoiding the wiring of the first shell 10 affecting the sealing and waterproofing of the first shell 10, and ensuring the safety and reliability of electrical components in the first installation cavity 10a.

[0081] In some embodiments, wires are output from the bottom of the second housing 20 to supply power to the air conditioner and serve as a signal line interaction interface.

[0082] In some embodiments, the corners of the first shell 10 and the second shell 20 are arc transitions, so that the accumulated water on the surface of the first shell 10 and the second shell 20 can flow down along the arc segments in time, avoiding the accumulated water from entering the first shell 10 and the second shell 20, thereby avoiding affecting the first control module 11 and the second control module 21.

[0083] The energy storage system 1000 according to the present invention is briefly described below.

[0084] The energy storage system 1000 according to the present invention includes the electric control box assembly 1 according to any one of the above embodiments. Since the energy storage system 1000 according to the present invention is provided with the electric control box assembly 1 according to the above embodiments, the energy storage system 1000 has a higher degree of integration.

[0085] According to some embodiments of the present invention, Figure 1As shown, the energy storage system 1000 includes a box body 2, a battery module and a box cover 4. A first storage cavity and a second storage cavity are formed in the box body 2. The first storage cavity is used to accommodate the electric control box assembly 1; the battery module is arranged in the second storage cavity and is electrically connected to the electric control box assembly 1; the box cover 4 is arranged on the box body 2, and the first storage cavity is arranged between the box cover 4 and the second storage cavity. At this time, the battery module is located on the inner side of the box body 2, and the electric control box assembly 1 is located on the outer side of the box body 2, which facilitates the maintenance operation of the electric control box assembly 1.

[0086] According to some embodiments of the present invention, a cooling medium is stored in the second storage cavity. The cooling medium is suitable for direct contact with the battery module to exchange heat with the battery module, so that the energy storage system 1000 is at a more preferred operating temperature.

[0087] According to some embodiments of the present invention, the second control module 21 is located on the side of the first control module 11 facing the box cover 4. Here, the first control module 11 can be a BMS module, the second control module 21 can be a communication module or a control module, and the second housing 20 can also be a PCS control box. Compared with the BMS module, the communication module, the control module, the PCS control box and other structures require a higher maintenance frequency. Therefore, the second control module 21 is set on the side closer to the box cover 4 to facilitate opening the cover 24 to perform maintenance on the second control module 21.

[0088] According to some embodiments of the present invention, the energy storage system 1000 further includes a cooling assembly 5, which is disposed within the cover 4 or the first storage chamber. The cooling assembly 5 can be used to exchange heat with the electrical control box assembly 1 and the battery modules in the energy storage system 1000 to maintain the energy storage system 1000 at a more optimal operating temperature.

[0089] In some embodiments, the electric control box assembly 1 and the cooling assembly 5 are arranged in an alternating manner. For example, the electric control box assembly 1 and the cooling assembly 5 can be arranged in an alternating manner in the height direction or the horizontal direction.

[0090] According to some embodiments of the present invention, a space suitable for the installation of a cooling assembly 5 is defined between the electrical control box assembly 1, the box cover 4, and the battery module. The cooling assembly 5 contacts the battery module through the space. Here, the cooling assembly 5 and the electrical control box assembly 1 are staggered in height to fully utilize the internal space of the box body 2, improve the space utilization of the energy storage system 1000, and facilitate heat exchange between the cooling assembly 5 and the structures in the energy storage system 1000.

[0091] To sum up, according to the electric control box assembly 1 of the present invention, the first control module 11 and the second control module 21 are integrated into one place, which can reduce the space occupied by the first control module 11 and the second control module 21 in the energy storage system 1000, and improve the integration of the electric control box assembly 1. In addition, the first control module 11 and the second control module 21 are arranged in different shells, which can realize the partitioned arrangement of the first control module 11 and the second control module 21, avoid the first control module 11 and the second control module 21 affecting each other, and improve the working stability of the electric control box assembly 1.

[0092] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0093] While embodiments of the present invention have been shown and described above, changes, modifications, substitutions, and variations may be made to the embodiments described above.

Claims

1. An electric control box assembly (1), characterized in that: include: A first housing (10), wherein the first housing (10) is formed with a first installation cavity (10a), and the first installation cavity (10a) is suitable for installing a first control module (11); A second housing (20), wherein the second housing (20) is movably connected to the first housing (10), and the second housing (20) is suitable for installing a second control module (21), and the second control module (21) is electrically connected to the first control module (11).

2. The electric control box assembly (1) according to claim 1, characterized in that: The first control module (11) is a high-voltage module, and the second control module (21) is a low-voltage module and / or a high-voltage module.

3. The electric control box assembly (1) according to claim 2, characterized in that: The first control module (11) is configured as a BMS module; The second control module (21) is a low-voltage module and includes a communication module and / or a control module; or The second housing (20) is constructed as a PCS control box, and the low-voltage module and the high-voltage module are arranged inside the PCS control box.

4. The electric control box assembly (1) according to claim 1, characterized in that: The second shell (20) is provided on one side of the first shell (10) in the thickness direction, and a mounting position is provided on the other side of the first shell (10) in the thickness direction for connection with other structures.

5. The electric control box assembly (1) according to claim 1, characterized in that: The first shell (10) is provided with a first installation opening, the first installation opening being communicated with the first installation cavity (10a), and the second shell (20) is movably provided on the first shell (10) to selectively cover the first installation opening.

6. The electric control box assembly (1) according to claim 5, characterized in that: The second housing (20) comprises: A box body (23), wherein a second installation cavity (20a) and a second installation opening communicating with the second installation cavity (20a) are formed in the box body (23), and the second installation cavity (20a) is suitable for installing the second control module (21); A cover plate (24) is movably arranged on the box body (23) to selectively cover the second installation opening.

7. The electric control box assembly (1) according to claim 6, characterized in that: The first shell (10) is provided with a first pivot portion (12) located at the edge of the first installation opening, and the second shell (20) is rotatably connected to the first shell (10) via the first pivot portion (12).

8. The electric control box assembly (1) according to claim 7, characterized in that: The box body (23) is provided with a second pivot portion (22) located at the edge of the second installation opening, and the cover plate (24) is rotatably connected to the box body (23) via the second pivot portion (22).

9. The electric control box assembly (1) according to claim 8, characterized in that: The first pivoting portion (12) and the second pivoting portion (22) are located on the same side of the box body (23).

10. The electric control box assembly (1) according to claim 7, characterized in that: The box body (23) is provided with a wire passage (23a) for connecting the second installation cavity (20a) with the first installation cavity (10a); the wire passage (23a) is arranged adjacent to the first pivot portion (12); and an electrical connection line electrically connects the first control module (11) with the second control module (21) through the wire passage (23a).

11. The electric control box assembly (1) according to claim 6, characterized in that: Also includes: A sealing member (30) is provided on the outer periphery of the first mounting opening and is suitable for abutting against the second shell (20); and / or the sealing member (30) is provided on the outer periphery of the second mounting opening and is suitable for abutting against the cover plate (24).

12. The electric control box assembly (1) according to claim 1, characterized in that: An electrical connector (13) is provided inside the first housing (10), one end of the electrical connector (13) is located in the first installation cavity (10a) and is suitable for being electrically connected to the first control module (11), and the other end of the electrical connector (13) extends to the outside of the first installation cavity (10a).

13. An energy storage system (1000), characterized in that: The invention comprises an electric control box assembly (1) according to any one of claims 1 to 12.

14. The energy storage system (1000) according to claim 13, characterized in that include: A box body (2), wherein a first storage cavity and a second storage cavity are formed in the box body (2), and the first storage cavity is used to accommodate the electric control box assembly (1); a battery module, the battery module being disposed in the second storage cavity and electrically connected to the electric control box assembly (1); A box cover (4), the box cover (4) is arranged on the box body (2), and the first storage cavity is arranged between the box cover (4) and the second storage cavity.

15. The energy storage system (1000) according to claim 14, characterized in that A cooling medium is stored in the second storage cavity, and the cooling medium is suitable for direct contact with the battery module.

16. The energy storage system (1000) according to claim 14, characterized in that The second control module (21) is located on a side of the first control module (11) facing the box cover (4).

17. The energy storage system (1000) according to claim 14, characterized in that Also includes: A cooling component (5), wherein the cooling component (5) is arranged in the box cover (4) or the first storage cavity.

18. The energy storage system (1000) according to claim 17, characterized in that An accommodating space suitable for the arrangement of the cooling assembly (5) is defined between the electric control box assembly (1), the box cover (4) and the battery module, and the cooling assembly (5) contacts the battery module through the accommodating space.

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