High-voltage electrical box and energy storage system

Abstract

The utility model discloses a high-voltage electrical box and an energy storage system, and relates to the technical field of energy storage, the high-voltage electrical box comprises a box body, the box body is provided with a mounting cavity; the electrical adapter is preset in the box body, and the electrical adapter and the box body form a first modular structure; and an electrical assembly, the electrical assembly comprises an electrical installation plate and electrical elements integrated on the electrical installation plate, the electrical installation plate and the electrical elements form a second modular structure, and the second modular structure and the first modular structure are detachably installed in the installation cavity. And the electrical element is electrically connected with the electrical adapter. According to the technical scheme of the utility model, the assembly difficulty of the high-voltage electrical box is reduced.

Description

Technical Field

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

[0002] With the continuous growth of energy demand and the rapid development of new energy technologies, energy storage systems have been widely used in power, transportation, and communication fields. As the core component of an energy storage system, the high-voltage electrical box undertakes the important tasks of storing, converting, and distributing electrical energy. The interior of the high-voltage electrical box houses a series of key components, including a battery management system (BMS), fuses, relays, circuit breakers, pre-charge circuits, Hall effect sensors, shunts, power modules, connectors, and high and low voltage wiring harnesses. These components work together to ensure the efficient, stable, and safe operation of the energy storage system. Due to the large number of components and wiring harnesses within the high-voltage electrical box, complex wiring must be performed within a limited space during assembly, resulting in significant assembly difficulties. Utility Model Content

[0003] The main purpose of this utility model is to provide a high-voltage electrical box and energy storage system, which aims to reduce the assembly difficulty of the high-voltage electrical box.

[0004] To achieve the above objectives, this utility model provides a high-voltage electrical box, which includes:

[0005] The housing has a mounting cavity;

[0006] An electrical adapter is pre-installed in the enclosure, and the electrical adapter and the enclosure form a first modular structure; and

[0007] An electrical component, comprising an electrical mounting plate and electrical elements integrated on the electrical mounting plate, the electrical mounting plate and the electrical elements forming a second modular structure, the second modular structure being detachably mounted to the mounting cavity along with the first modular structure, and the electrical elements being electrically connected to the electrical adapter.

[0008] In one embodiment, the high-voltage electrical box includes a positioning structure disposed between the bottom of the box body and the electrical mounting plate, and is used for positioning during the assembly of the first modular structure and the second modular structure.

[0009] In one embodiment, the positioning structure is provided at least one of the end of the electrical mounting plate facing the electrical adapter and the end facing away from the electrical adapter.

[0010] In one embodiment, the positioning structure includes a positioning pin and a positioning hole that mates with the positioning pin, wherein one of the electrical mounting plate and the housing is provided with the positioning pin, and the other of the electrical mounting plate and the housing is provided with the positioning hole.

[0011] In one embodiment, the bottom of the enclosure is provided with a support structure, which is supported on the bottom surface of the electrical mounting plate. The support structure is provided with studs, and the electrical mounting plate is provided with mounting holes. The mounting holes and the studs are connected by bolts.

[0012] In one embodiment, the housing is provided with an installation port communicating with the mounting cavity, and the installation port is located on the top surface of the housing;

[0013] The high-voltage electrical box also includes a cover, which is located at the mounting port and is detachably connected to the box body.

[0014] In one embodiment, the housing is an integral structure and the housing cover is sealed at the mounting opening to form a sealed cavity.

[0015] In one embodiment, the high-voltage electrical box further includes a sealing ring, which is disposed around the periphery of the mounting opening and seals the box cover and the box body.

[0016] In one embodiment, the housing is provided with a mounting groove, which is arranged circumferentially along the mounting opening, and the sealing ring is disposed in the mounting groove.

[0017] In one embodiment, the electrical adapter and the electrical component are electrically connected via cables.

[0018] In one embodiment, the high-voltage electrical box further includes a lamp panel assembly, which is located at the bottom of the box and electrically connected to the electrical components.

[0019] To achieve the above objectives, this utility model provides an energy storage system, which includes the high-voltage electrical box described above.

[0020] In one embodiment, multiple high-voltage electrical boxes are provided, and two adjacent high-voltage electrical boxes are connected by the electrical adapter.

[0021] The technical solution of this application involves directly mounting electrical adapters onto the enclosure to form a first modular structure, and integrating electrical components onto an electrical mounting plate to form a second modular structure. The second modular structure is then assembled onto the first modular structure, eliminating the need for complex electrical installations and cable routing within the enclosure, thus effectively reducing assembly difficulty. In other words, when assembling a high-voltage electrical box, electrical components can be installed externally onto the electrical mounting plate, eliminating the need for operations within the compact interior space of the enclosure. This is more convenient, and the assembly of electrical components and the electrical mounting plate, as well as the assembly of the enclosure and the electrical adapters, can be performed independently without interference, saving assembly time and improving efficiency. This application achieves convenient assembly by integrating electrical components onto an independent electrical mounting plate to form the second modular structure and pre-fixing the electrical adapters to the enclosure to form the first modular structure. This simplifies the assembly process and improves work efficiency. For later maintenance or system upgrades, only the corresponding second modular structure needs to be replaced, making the process even simpler and more convenient. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0023] Figure 1 This is an exploded structural diagram of an embodiment of the high-voltage electrical box of this utility model;

[0024] Figure 2 This is a partial structural schematic diagram of an embodiment of the high-voltage electrical box of this utility model;

[0025] Figure 3 for Figure 2 A magnified schematic diagram of part A in the middle section;

[0026] Figure 4 This is a schematic diagram of the internal structure of an embodiment of the high-voltage electrical box of this utility model;

[0027] Figure 5 This is a side view of an embodiment of the high-voltage electrical box of this utility model.

[0028] Explanation of icon numbers:

[0029] 110. Enclosure; 120. Electrical adapter; 200. Electrical assembly; 210. Electrical mounting plate; 220. Electrical component; 300. Positioning structure; 310. Positioning pin; 320. Positioning hole; 410. Stud; 420. Mounting hole; 500. Enclosure cover; 600. Light panel assembly; 700. Support structure.

[0030] The realization of the purpose, functional features and advantages of this utility model will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0031] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the embodiments of the present utility model.

[0032] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in this utility model embodiment are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0033] Furthermore, in the embodiments of this utility model, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of the embodiments of this utility model, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0034] In this embodiment of the invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0035] Furthermore, the technical solutions of the various embodiments of this utility model can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the protection scope claimed by the embodiments of this utility model.

[0036] As a core component of an energy storage system, the high-voltage electrical box plays a crucial role in the storage, conversion, and distribution of electrical energy. Internally, it houses a series of critical components, including a battery management system (BMS), fuses, relays, circuit breakers, pre-charge circuits, Hall effect sensors, shunts, power modules, connectors, and high and low voltage wiring harnesses. These components work together to ensure the efficient, stable, and safe operation of the energy storage system.

[0037] In traditional assembly methods, each electrical component and wiring harness usually needs to be installed and connected one by one inside the box. Due to the limited space inside the high-voltage electrical box, the arrangement and connection of each electrical component and wiring harness becomes very inconvenient, increasing the assembly difficulty.

[0038] In view of this, this utility model embodiment provides a high-voltage electrical box and energy storage system. By integrating electrical components onto an independent electrical mounting plate to form a second modular structure, and pre-fixing electrical adapters to the box to form a first modular structure, convenient assembly of the two is achieved. This not only simplifies the assembly process but also improves work efficiency. In later maintenance or system upgrades, only the corresponding second modular structure needs to be replaced, making it even simpler and more convenient.

[0039] To better understand the above technical solution, the following detailed explanation is provided in conjunction with the accompanying drawings.

[0040] like Figures 1 to 4 As shown in the figure, this utility model embodiment proposes a high-voltage electrical box, which includes:

[0041] The housing 110 has a mounting cavity. Optionally, the housing 110 is a cuboid and can be made of metal; this is not limited. Of course, in other embodiments, the housing 110 can also be a cube or other irregular shape. In one embodiment, the housing 110 has a mounting cavity and a mounting opening communicating with the mounting cavity, the mounting cavity being used to provide mounting space.

[0042] An electrical adapter 120 is pre-installed in the enclosure 110, forming a first modular structure with the enclosure 110. It is understood that during the assembly of the high-voltage electrical box, the electrical adapter 120 can be pre-assembled into the enclosure 110, i.e., the electrical adapter 120 is fixed in the mounting cavity to form the first modular structure. The electrical adapter 120 is used to electrically connect equipment outside the enclosure 110 and equipment inside the enclosure 110. That is, it can realize the electrical connection between the electrical components 200 inside the enclosure 110 and external equipment, and it can also realize the electrical connection between the electrical components 200 in two high-voltage electrical boxes connected in series. Optionally, the electrical adapter 120 can be a common adapter interface or adapter connector, which will not be described in detail here; and

[0043] An electrical component 200 includes an electrical mounting plate 210 and an electrical element 220 integrated on the electrical mounting plate 210. The electrical mounting plate 210 and the electrical element 220 form a second modular structure. The first modular structure and the second modular structure are detachably installed in the mounting cavity. The electrical element 220 is electrically connected to the electrical adapter 120. It can be understood that when assembling a high-voltage electrical box, the electrical element 220 can be first installed on the electrical mounting plate 210 to form the second modular structure, and then the second modular structure can be assembled onto the first modular structure. This achieves the assembly of the electrical element 220 outside the box 110, effectively reducing assembly difficulty. Specifically, the electrical mounting plate 210 is a plate-shaped structure used to provide an installation position for the electrical element 220. The shape and material of the electrical mounting plate 210 are not limited. The electrical element 220 can be fixed to the electrical mounting plate 210 by bolts or welding, which is also not limited. Electrical components 220 are not limited to fuses, relays, circuit breakers, pre-charging circuits, Hall sensors, shunts, and power modules. The electrical connections between these components can be referenced from the connection methods of components in common energy storage high-voltage electrical boxes, and will not be detailed further. Optionally, when assembling the first modular structure and the second modular structure, the electrical mounting plate 210 and the enclosure 110 can be fixed by snap-fitting, screwing, or other means.

[0044] In this embodiment, the electrical adapter 120 is directly mounted on the enclosure 110 to form a first modular structure, while the electrical component 220 is integrated on the electrical mounting plate 210 to form a second modular structure. The second modular structure is then assembled onto the first modular structure, eliminating the need for complex electrical installations and cable routing within the enclosure 110, thus effectively reducing assembly difficulty. In other words, when assembling the high-voltage electrical box, the electrical component 220 can be installed outside the enclosure 110, i.e., assembled onto the electrical mounting plate 210 from the outside of the enclosure 110. This eliminates the need for operation within the compact interior space of the enclosure 110, making it more convenient. Furthermore, the assembly of the electrical component 220 and the electrical mounting plate 210, as well as the assembly of the enclosure 110 and the electrical adapter 120, can be performed independently without interference, saving assembly time and improving assembly efficiency. This application achieves convenient assembly of the two by integrating electrical components 220 onto a separate electrical mounting plate 210 to form a second modular structure, and pre-fixing the electrical adapter 120 onto the enclosure 110 to form a first modular structure. This not only simplifies the assembly process but also improves work efficiency. In later maintenance or system upgrades, only the corresponding second modular structure needs to be replaced, making it even simpler and more convenient.

[0045] In one embodiment of this utility model, reference is made to Figure 2 The high-voltage electrical box includes a positioning structure 300, which is located between the bottom of the box body 110 and the electrical mounting plate 210, and is used for positioning during the assembly of the first modular structure and the second modular structure. To facilitate the assembly of the first and second modular structures, this embodiment provides the positioning structure 300. During the assembly of the first and second modular structures, positioning can be achieved through the positioning structure 300, thereby improving assembly accuracy.

[0046] In one embodiment of this utility model, at least one of the ends of the electrical mounting plate 210 facing the electrical adapter 120 and the ends facing away from the electrical adapter 120 is provided with the positioning structure 300. It is understood that the positioning structure 300 is located at the end of the electrical mounting plate 210, thus avoiding the electrical component 220 installed on the electrical mounting plate 210 and improving the convenience of installing the electrical component 220. Optionally, the positioning structure 300 can be located at the end of the electrical mounting plate 210 facing (i.e., close to) the electrical adapter 120, or at the end of the electrical mounting plate 210 facing away from (i.e., away from) the electrical adapter 120. Alternatively, the positioning structure 300 can be provided simultaneously at both the end of the electrical mounting plate 210 facing the electrical adapter 120 and the end facing away from the electrical adapter 120; this is not limited to this embodiment.

[0047] In one embodiment of this utility model, reference is made to Figure 2 The positioning structure 300 includes a positioning pin 310 and a positioning hole 320 that mates with the positioning pin 310. One of the electrical mounting plate 210 and the housing 110 is provided with the positioning pin 310, and the other of the electrical mounting plate 210 and the housing 110 is provided with the positioning hole 320. It is understood that the positioning pin 310 is inserted into the positioning hole 320, thereby achieving the assembly positioning of the first modular structure and the second modular structure. Moreover, the mating method of the positioning pin 310 and the positioning hole 320 simplifies the structure. Specifically, the positioning pin 310 can be cylindrical, conical, or other suitable shapes, used to insert into the positioning hole 320 during assembly to achieve precise positioning of the electrical mounting plate 210 and the housing 110. The shape of the positioning hole 320 matches the positioning pin 310 so that the positioning pin 310 can be smoothly inserted and fixed. In one embodiment, the positioning pin 310 can be located at the bottom of the electrical mounting plate 210, while the positioning hole 320 is located in the housing 110. In another embodiment, the locating pin 310 can be provided in the housing 110, while the locating hole 320 is provided in the electrical mounting plate 210. To allow for a certain tolerance, the inner diameter of the locating hole 320 can be larger than the outer diameter of the locating pin 310.

[0048] In one embodiment of this utility model, reference is made to Figure 2 The high-voltage electrical box also includes a support structure 700, which is located at the bottom of the box body 110. The support structure 700 supports the bottom surface of the electrical mounting plate 210, providing support for the electrical mounting plate 210. It is understood that the support structure 700, by spacing the electrical mounting plate 210 and the bottom of the box body 110 apart, facilitates airflow and better heat dissipation for the electrical components 210 on the electrical mounting plate 210. Optionally, the support structure 700 can be a support frame, including a top support plate and support side plates connected to the top support plate. A support side plate is provided at each opposite end of the top support plate, and the support side plates connect the bottom of the box body 110 and the top support plate. The support structure 700 is provided with studs 410, optionally located on the top support plate. The electrical mounting plate 210 is provided with mounting holes 420, and the mounting holes 420 and the studs 410 are connected by bolts. Understandably, fixing the enclosure 110 and electrical mounting plate 210 with bolts facilitates assembly and disassembly, which is beneficial for future maintenance or system upgrades. Furthermore, the threaded holes inside the studs 410, compared to directly threading holes in the enclosure 110, reduce the impact on the structural strength of the enclosure 110, providing greater structural strength and improving the secure fixing of the enclosure 110 and electrical mounting plate 210. (Refer to...) Figure 3Optionally, the mounting hole is a notch formed at the end of the electrical mounting plate 210, which extends from the end of the electrical mounting plate 210 toward the middle of the electrical mounting plate 210. This makes it easier for the positioning pin 310 to slide into the end of the electrical mounting plate 210.

[0049] In one embodiment of this utility model, the housing 110 is provided with an installation port communicating with the mounting cavity, and the installation port is located on the top surface of the housing 110; thus, the electrical adapter 120 and the electrical mounting plate 210 are arranged side by side along the length of the housing 110. During later maintenance or replacement and upgrade, the electrical mounting plate 210 can be directly disassembled, thereby removing the entire second modular structure without disassembling the electrical adapter 120, further improving the convenience of disassembly and assembly.

[0050] The high-voltage electrical box also includes a box cover 500, as shown in the reference. Figures 1 to 5 The cover 500 is located at the mounting port and is detachably connected to the housing 110. The detachable cover 500 allows the mounting port to be opened or closed, facilitating the removal and removal of the electrical assembly 200 or sealing of the mounting cavity. Optionally, the cover 500 can be connected to the housing 110 via a snap-fit ​​structure or a bolt structure.

[0051] In one embodiment of this utility model, the housing 110 is an integral structure and the housing cover 500 is sealed to the mounting opening to form a sealed cavity for the mounting cavity. This achieves a seal for the mounting cavity, thus providing better waterproofing and dustproofing.

[0052] In one embodiment of this utility model, the high-voltage electrical box further includes a sealing ring, which is disposed around the periphery of the mounting opening and seals the box cover 500 and the box body 110. It is understood that during the process of fixing the box cover 500 and the box body 110, the sealing ring will deform under pressure and fill the gap between the box cover 500 and the box body 110, effectively providing a sealing effect.

[0053] In one embodiment of this utility model, the housing 110 is provided with a mounting groove, which is arranged circumferentially along the mounting opening, and the sealing ring is disposed in the mounting groove. It can be understood that the mounting groove can limit the positioning of the sealing ring, preventing misalignment during the assembly of the housing cover 500 and the housing 110, thereby further improving the sealing performance. Specifically, the sealing ring protrudes from the mounting groove, that is, a portion of the sealing ring is placed in the mounting groove, so that the sealing ring can be compressed and deformed, thereby filling the gap between the housing 110 and the housing cover 500.

[0054] In one embodiment of this utility model, the electrical adapter 120 and the electrical component 220 are electrically connected by a cable. This means that when the electrical component 200 needs to be disassembled or replaced, the operator can simply disconnect the cable to quickly sever the electrical connection between the adapter 120 and the component 220. Conversely, after reinstallation or repair, the integrity of the circuit can be quickly restored by reconnecting the cable. Furthermore, the cable connection provides greater flexibility, allowing for appropriate wiring and adjustments between the adapter 120 and the component 220 to adapt to different installation environments and space requirements. Additionally, if the cable is damaged, it can be replaced individually without replacing the entire electrical component 200, reducing maintenance costs and improving maintenance efficiency.

[0055] In one embodiment of this utility model, the electrical mounting plate 210 is arranged parallel to the bottom of the housing 100. This allows for more efficient use of the limited space inside the housing 110, enabling a more compact arrangement of the electrical components 220 and reducing the size requirements of the housing 110. Furthermore, it allows the surfaces of the electrical components 220 to be more effectively exposed to natural or forced airflow, promoting heat dissipation and ensuring that the electrical components 220 operate within a suitable temperature range, thus improving system stability and lifespan. Additionally, the layout of the electrical components 220 is clearer; after removing the housing cover 500, operators can clearly observe each device without frequently adjusting their viewing angle or body posture, improving work efficiency.

[0056] In one embodiment of this utility model, reference is made to Figure 5 The high-voltage electrical box also includes a lamp panel assembly 600, which is located at the bottom of the box body 110 and electrically connected to the electrical component 220. The lamp panel assembly 600 displays the status of the electrical component 220 within the electrical assembly 200.

[0057] To achieve the above objectives, this utility model provides an energy storage system, which includes the high-voltage electrical box described above. Specifically, the specific structure of the high-voltage electrical box refers to the above embodiments. Since this energy storage system adopts all the technical solutions of the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, and will not be described in detail here.

[0058] In one embodiment of this utility model, multiple high-voltage electrical boxes are provided, and two adjacent high-voltage electrical boxes are connected by the electrical adapter 120. In this way, the electrical connection of electrical components 200 in two adjacent high-voltage electrical boxes can be easily realized.

[0059] The above description is merely an exemplary embodiment of the present utility model and does not limit the patent scope of the present utility model embodiments. Any equivalent structural transformations made under the technical concept of the present utility model using the description and drawings of the present utility model embodiments, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present utility model embodiments.

Claims

1. A high-voltage electrical box, characterized in that, The high-voltage electrical box includes: The housing has a mounting cavity; An electrical adapter is pre-installed in the enclosure, and the electrical adapter and the enclosure form a first modular structure; and An electrical component, comprising an electrical mounting plate and electrical elements integrated on the electrical mounting plate, the electrical mounting plate and the electrical elements forming a second modular structure, the second modular structure being detachably mounted to the mounting cavity along with the first modular structure, and the electrical elements being electrically connected to the electrical adapter.

2. The high-voltage electrical box as described in claim 1, characterized in that, The electrical adapter and the electrical components are electrically connected via cables.

3. The high-voltage electrical box as described in claim 1, characterized in that, The high-voltage electrical box includes a positioning structure located between the bottom of the box body and the electrical mounting plate, and is used for positioning during the assembly of the first modular structure and the second modular structure.

4. The high-voltage electrical box as described in claim 3, characterized in that, The positioning structure is provided at least one of the ends of the electrical mounting plate facing the electrical adapter and the end facing away from the electrical adapter.

5. The high-voltage electrical box as described in claim 3, characterized in that, The positioning structure includes a positioning pin and a positioning hole that mates with the positioning pin. One of the electrical mounting plate and the housing is provided with the positioning pin, and the other of the electrical mounting plate and the housing is provided with the positioning hole.

6. The high-voltage electrical box as described in claim 1, characterized in that, The bottom of the enclosure is provided with a support structure, which is supported on the bottom surface of the electrical mounting plate. The support structure is provided with studs, and the electrical mounting plate is provided with mounting holes. The mounting holes and the studs are connected by bolts.

7. The high-voltage electrical box as described in claim 1, characterized in that, The housing is provided with an installation port that communicates with the mounting cavity, and the installation port is located on the top surface of the housing; The high-voltage electrical box also includes a cover located at the mounting port and detachably connected to the box body.

8. The high-voltage electrical box as described in claim 7, characterized in that, The housing is a one-piece structure and the housing cover is sealed at the mounting opening to form a sealed cavity.

9. The high-voltage electrical box as described in claim 8, characterized in that, The high-voltage electrical box also includes a sealing ring, which is located around the periphery of the mounting port and seals the box cover and the box body.

10. The high-voltage electrical box as described in claim 9, characterized in that, The housing is provided with a mounting groove, which is arranged circumferentially along the mounting opening, and the sealing ring is provided in the mounting groove.

11. The high-voltage electrical box as described in any one of claims 1 to 10, characterized in that, The high-voltage electrical box also includes a lamp panel assembly, which is located at the bottom of the box and is electrically connected to the electrical components.

12. An energy storage system, characterized in that, The energy storage system includes a high-voltage electrical box as described in any one of claims 1 to 11.

13. The energy storage system as described in claim 12, characterized in that, The high-voltage electrical boxes are provided in multiple locations, and two adjacent high-voltage electrical boxes are connected by the electrical adapter.

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