Two-cluster-in-one high-voltage box and energy storage container
Through the dual-layer installation components and the optimized heat dissipation structure, the problems of low space utilization and poor heat dissipation of high-voltage boxes are solved, and efficient management and improved heat dissipation effect are achieved.
Patent Information
- Application Number
- CN202422469488.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-11
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-10-11
AI Technical Summary
The existing high-voltage box has large size, low space utilization, unreasonable device planning, inconvenient management, and poor heat dissipation effect.
It adopts a dual-layer mounting component design, with hard connection between the bottom and the second-layer device mounting board, soft connection between the panel terminals, combined with spoiler fan and heat dissipation vias, optimized device layout and heat dissipation structure.
Improves space utilization, simplifies management, enhances heat dissipation effect, and ensures the operating performance and safety of the device.
Smart Images
Figure CN223246137U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of high-voltage boxes, and specifically relates to a two-cluster-in-one high-voltage box and an energy storage container. Background Art
[0002] With the acceleration of the global energy transition, the energy storage market is experiencing unprecedented development opportunities. Demand for various energy storage products is experiencing explosive growth, and the requirements for energy storage product design are also gradually increasing. In this context, energy storage product design is not limited to functional implementation, but also requires attention to multiple dimensions such as space optimization, maintenance convenience, efficiency improvement, and safety and reliability.
[0003] As a key component in energy storage systems connecting battery clusters to the power grid, the rationality and advancement of the high-voltage box's design directly impact the performance and lifespan of the entire energy storage system. Currently available high-voltage boxes on the market suffer from several technical issues: They are large, occupying a significant amount of space within the container; their internal components are poorly organized, resulting in low space utilization; each battery cluster is equipped with its own high-voltage box, making management inconvenient and requiring a significant amount of space; and high temperatures within the box, resulting in poor heat dissipation and impacting device performance. Utility Model Content
[0004] The purpose of the utility model is to overcome the problem that the high-voltage box is large in size but has low space utilization, and to provide a two-cluster-in-one high-voltage box and an energy storage container.
[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:
[0006] A two-cluster-in-one high-voltage box comprises a box body, wherein a double-layer mounting assembly is arranged inside the box body, the double-layer mounting assembly comprises a bottom device mounting plate, a second-layer mounting bracket and a second-layer device mounting plate, the bottom of the bottom device mounting plate is fixedly connected to the inner wall of the box body, the bottom of the second-layer mounting bracket is fixed on the bottom device mounting plate, one end of the second-layer device mounting plate is fixedly connected to the side top of the second-layer mounting bracket, a mounting plate fixing seat is provided on the side wall of the box body, and the other end of the second-layer device mounting plate is connected to the mounting plate fixing seat; the bottom device is mounted on the bottom device mounting plate, the second-layer device is mounted on the second-layer mounting bracket and the second-layer device mounting plate, the bottom device and each device on the second layer are hard-connected, the box body is provided with a panel terminal, and the panel terminal is soft-connected to each device on the bottom device and each device on the second layer.
[0007] Furthermore, the second-layer devices include a battery management module, a switching power supply, an intermediate relay and a power terminal block. The battery management module, the switching power supply, the intermediate relay and the power terminal block are interconnected. The switching power supply is set on the second-layer mounting bracket, the battery management module is set on the second-layer device mounting board, and the intermediate relay is set between the second-layer mounting bracket and the second-layer device mounting board.
[0008] Furthermore, two second-layer device mounting plates are provided, one second-layer device mounting plate is fixedly connected to the top of one side of the second-layer mounting bracket, and the other second-layer device mounting plate is fixedly connected to the top of the other side of the second-layer mounting bracket.
[0009] Furthermore, the double-layer mounting assembly also includes a PC insulating plate, a tail device mounting seat, a tail device mounting plate and a circuit breaker mounting plate; the PC insulating plate is arranged on the bottom device mounting plate, the PC insulating plate is arranged in the middle of the box, the bottom of the tail device mounting seat is fixedly connected to the inner wall of the box, a gap is arranged between the tail device mounting seat and the bottom device mounting plate, the circuit breaker mounting plate is installed on the tail device mounting seat, two circuit breaker mounting plates are arranged, a fan mounting plate is arranged between the two circuit breaker mounting plates, the tail device mounting plate is arranged outside the circuit breaker mounting plate and the fan mounting plate, and a spoiler fan is installed on the fan mounting plate.
[0010] Furthermore, a box cover is installed on the box body, a box sealing gasket is set between the box cover and the box body, a heat dissipation hole is opened on the side of the box body, the heat dissipation hole includes an air outlet and an air inlet, the air outlet is arranged opposite to the spoiler fan, and a hanging ear is set on the outside of the box body.
[0011] Furthermore, a dust cover is installed outside the heat dissipation hole, and the dust cover includes a dustproof structure, a dustproof sealing gasket and dustproof cotton. A guide hole is set at the bottom of the dustproof structure, the dustproof cotton is placed inside the dustproof structure, and a limiting fold is set on the side of the dustproof structure.
[0012] Furthermore, the bottom-layer components include fuses, relays, circuit breakers, pre-charging groups and copper bars. The copper bars include soft copper bars and hard copper bars. The fuses, relays and circuit breakers are connected through hard copper bars. The panel terminals are connected to the bottom-layer components through soft connections. The circuit breaker is installed on the circuit breaker mounting plate. The fuses, relays and copper bars are installed on the bottom-layer component mounting plate. The charging group and pre-charging resistance relay are pre-installed on the tail component mounting plate. The pre-charging resistor is connected to the pre-charging resistance relay.
[0013] Furthermore, the second-layer mounting bracket is provided with a guide rail, and the sides of the second-layer device mounting plate and the second-layer mounting bracket are provided with folded edges, through holes are provided on the folded edges, and the through holes are provided with cable tie fixing seats.
[0014] Furthermore, the panel terminal includes a primary line terminal and a secondary line terminal, the primary line terminal is arranged on one side of the central axis of the box, and the secondary line terminal is arranged on the other side of the central axis of the box.
[0015] An energy storage container utilizes the two-cluster-in-one high-voltage box.
[0016] Compared with the prior art, the present invention has the following beneficial technical effects:
[0017] The utility model provides a two-cluster-in-one high-voltage box. The double-layer installation component divides the internal space of the box into a bottom layer and a second layer. On the basis of ensuring that the safety distance between the bottom layer devices and the second layer devices is met, the space utilization rate is increased. The bottom layer devices are installed on the bottom layer device mounting plate, and the second layer devices are installed on the second layer mounting bracket and the second layer device mounting plate. The bottom layer devices and the second layer devices are hard-connected. The box body is provided with a panel terminal, and the panel terminal is soft-connected with the bottom layer devices and the second layer devices. On the basis of meeting the electrical performance, combined with the product design and modeling design principles, a symmetrical and balanced design method is adopted to combine the two clusters of high-voltage boxes into one. One high-voltage box can control two clusters of battery clusters, making management more convenient.
[0018] Furthermore, the components inside the box are symmetrically arranged, with high integration and better utilization of the internal space. The components inside the box are symmetrical on both sides, which facilitates production and installation. The weight of the box is balanced from front to back, which is beneficial for product transportation and transfer on the production line.
[0019] Furthermore, the tail device mounting base not only supports the circuit breaker but also meets the heat dissipation requirements and is used as an air duct for the excessive flow of gas inside and outside the box. The air duct is designed inside the box, which has a better heat dissipation effect and ensures the operating performance of the device.
[0020] The utility model provides an energy storage container, which uses a two-cluster-in-one high-voltage box, thereby reducing the space occupied inside the container and facilitating the internal layout and size reduction of the container. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] The drawings in the specification are used to provide a further understanding of the present invention and constitute a part of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention.
[0022] Figure 1 This is a box structure distribution diagram of a two-cluster-in-one high-voltage box of the utility model.
[0023] Figure 2 This is a structural diagram of the dust cover of a two-cluster-in-one high-voltage box of the utility model.
[0024] Figure 3 This is a diagram of the internal structure of a two-cluster-in-one high-voltage box of the utility model.
[0025] Figure 4 This is a bottom-layer device layout diagram of a two-cluster-in-one high-voltage box of the utility model.
[0026] Figure 5 This is a layout diagram of all components of a two-cluster-in-one high-voltage box of the utility model.
[0027] Figure 6This is a schematic diagram of heat dissipation of a high-voltage box with two clusters in one according to the present invention.
[0028] Among them, 11 is the box body, 12 is the box cover, 13 is the box body sealing gasket, 14 is the dust cover, 141 is the dustproof structural part, 142 is the dustproof sealing gasket, 143 is the dustproof cotton, 21 is the bottom device mounting plate, 22 is the second-layer mounting bracket, 23 is the second-layer device mounting plate, 24 is the PC insulation board, 25 is the circuit breaker mounting plate, 26 is the fan mounting plate, 27 is the tail device mounting plate, 31 is the relay, 32 is the circuit breaker, 33 is the fuse, 34 is the copper busbar, 41 is the pre-charging resistor, 411 is the pre-charging resistor relay, 42 is the battery management module, 43 is the switching power supply, 44 is the intermediate relay, and 45 is the power terminal block. DETAILED DESCRIPTION
[0029] In order to help those skilled in the art better understand the present invention, the following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.
[0030] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.
[0031] Example 1
[0032] See also Figure 1 and Figure 3A two-cluster-in-one high-voltage box includes a box body 11, and a double-layer mounting assembly is arranged inside the box body 11. The double-layer mounting assembly includes a bottom device mounting plate 21, a second-layer mounting bracket 22 and a second-layer device mounting plate 23. The bottom of the bottom device mounting plate 21 is fixedly connected to the inner wall of the box body 11, and the bottom of the second-layer mounting bracket 22 is fixed on the bottom device mounting plate 21. One end of the second-layer device mounting plate 23 is fixedly connected to the side top of the second-layer mounting bracket 22. A mounting plate fixing seat is provided on the side wall of the box body 11, and the other end of the second-layer device mounting plate 23 is connected to the mounting plate fixing seat; the bottom device is installed on the bottom device mounting plate 21, and the second-layer devices are installed on the second-layer mounting bracket 22 and the second-layer device mounting plate 23. The bottom device and each device of the second-layer devices are hard-connected. The box body 11 is provided with a panel terminal, and the panel terminal is soft-connected to each device of the bottom device and the second-layer devices.
[0033] See also Figure 5 The second-layer components include a battery management module 42, a switching power supply 43, an intermediate relay 44, and a power terminal block 45. The battery management module 42, the switching power supply 43, the intermediate relay 44, and the power terminal block 45 are interconnected. The switching power supply 43 is mounted on the second-layer mounting bracket 22, the battery management module 42 is mounted on the second-layer component mounting plate 23, and the intermediate relay 44 is mounted between the second-layer mounting bracket 22 and the second-layer component mounting plate 23. Two second-layer component mounting plates 23 are provided: one second-layer component mounting plate 23 is fixedly connected to the top of one side of the second-layer mounting bracket 22, and the other second-layer component mounting plate 23 is fixedly connected to the top of the other side of the second-layer mounting bracket 22.
[0034] The double-layer mounting assembly also includes a PC insulating plate 24, a tail device mounting seat, a tail device mounting plate 27 and a circuit breaker mounting plate 25; the PC insulating plate 24 is arranged on the bottom device mounting plate 21, the PC insulating plate 24 is arranged in the middle of the box body 11, the bottom of the tail device mounting seat is fixedly connected to the inner wall of the box body 11, and a gap is set between the tail device mounting seat and the bottom device mounting plate 21. The circuit breaker mounting plate 25 is installed on the tail device mounting seat, two circuit breaker mounting plates 25 are set, and a fan mounting plate 26 is set between the two circuit breaker mounting plates 25. The tail device mounting plate 27 is arranged outside the circuit breaker mounting plate 25 and the fan mounting plate 26, and a spoiler fan is installed on the fan mounting plate 26.
[0035] PC insulation board 24, also known as insulation rubber pad or insulation pad, is an insulation material made primarily of polycarbonate (PC). Polycarbonate is a thermoplastic engineering plastic with excellent properties, including high transparency, high impact resistance, good processability, and weather resistance.
[0036] A turbulent flow blower is a device that utilizes resistance and disturbance to improve gas conveying efficiency and energy conservation. By altering the gas flow field, it maintains high gas velocity during conveying and maximizes energy recovery after the gas passes through the blower. Various internal disturbance structures impede gas flow and alter flow field characteristics, thereby improving efficiency. A turbulent flow blower can increase gas flow and save energy under the same pressure differential. They are particularly adaptable to wide variations in flow rate. By altering the gas flow field, turbulent flow blowers can recover energy during conveying, further reducing energy consumption.
[0037] See also Figure 1 、 Figure 2 and Figure 6 A box cover 12 is mounted on the box body 11, with a box sealing gasket 13 disposed between the box cover 12 and the box body 11. A heat dissipation hole is provided on the side of the box body 11. The heat dissipation hole includes an air outlet and an air inlet. The air outlet is located opposite the turbulent fan. A mounting lug is provided on the outside of the box body 11. A dust cover 14 is mounted outside the heat dissipation hole. The dust cover 14 includes a dustproof structure 141, a dustproof sealing gasket 142, and dustproof cotton 143. A guide hole is provided at the bottom of the dustproof structure 141. The dustproof cotton 143 is placed inside the dustproof structure 141. The side of the dustproof structure 141 is provided with a limit fold.
[0038] Dustproof Cotton 143 is a sponge-like material that primarily acts as a dust and shock barrier. It's primarily composed of polyester fiber and polyurethane. Polyester fiber, with its excellent water and abrasion resistance, effectively protects surfaces from scratches. Polyurethane increases the material's flexibility and strength, making it particularly suitable for packaging and product protection.
[0039] A heat dissipation hole is opened on the side of the box body 11, and the heat dissipation hole includes an air outlet and an air inlet. The air outlet is arranged opposite to the spoiler fan. The spoiler fan, the tail device mounting seat and the air outlet and the air inlet constitute the heat dissipation structure of the box body 11. The air outlet sends out the internal hot air flow of the box body 11 under the action of the spoiler fan, and the air inlet naturally draws in the external air flow through the internal pressure difference of the box body 11. The tail device mounting seat serves as an air duct for the transition of the internal and external gas flow of the box body 11. A circulation is formed inside the box body 11, which provides conditions for the heat dissipation of the internal devices of the box body 11.
[0040] See also Figure 4The bottom-layer components include fuses 33, relays 31, circuit breakers 32 and copper busbars 34. The copper busbars include soft copper busbars and hard copper busbars. The fuses, relays and circuit breakers are connected through hard copper busbars. The panel terminals are connected to the bottom-layer components through soft copper busbars. The circuit breaker 32 is installed on the circuit breaker mounting plate 25. The fuse 33, relays 31 and copper busbars 34 are installed on the bottom-layer component mounting plate 21. The pre-charging resistor 41 and the pre-charging resistor relay 411 are installed on the tail component mounting plate 27. The pre-charging resistor 41 is connected to the pre-charging resistor relay 411.
[0041] Hard connections utilize rigid copper busbars. Made from a highly conductive copper alloy, these busbars are tough and resist bending. They are primarily used in power transmission and distribution systems, particularly in applications subject to significant mechanical stress. They are suitable for connecting large equipment such as transformers and generators. Their high conductivity ensures stable and reliable current transmission. Due to their high conductivity and stable physical properties, rigid copper busbars are widely used, particularly in demanding applications such as high voltage and high current. Furthermore, their rigidity makes them relatively easy to connect and secure.
[0042] Flexible connections utilize soft copper busbars. Made from high-purity electrolytic copper, soft copper busbars are soft, easily bendable, and possess excellent ductility and flexibility. They are primarily used in electrical connections and transmission, particularly in applications requiring frequent bending or deformation. They are suitable for connecting terminal blocks and busbars, particularly in applications requiring a large number of branch lines. Their excellent ductility and flexibility allow them to easily adapt to complex circuit layouts during installation. They are also more convenient to install and maintain, especially in confined spaces. Various bending angles and lengths can be easily achieved, eliminating the tedious tasks of replacing parts or disassembling equipment. Furthermore, their soft texture makes them less susceptible to breakage or fatigue over time.
[0043] The circuit breaker 32 in the high-voltage box plays a vital role in protecting circuit safety, ensuring stable equipment operation, and preventing power accidents. It can quickly cut off power in the event of an abnormality such as a short circuit, overload, or undervoltage, thereby protecting the circuit and equipment from damage. When a circuit fault occurs, the circuit breaker automatically isolates the faulty section, preventing further malfunction and ensuring continued normal operation of the rest of the power system. The circuit breaker also serves as a switchgear in the power system, enabling flexible control by manually or automatically connecting or disconnecting circuits.
[0044] Pre-charge resistor 41 is a resistor used to control the pre-charging of capacitors in a circuit. Its primary function is to limit the charging current before the capacitor is powered on, reducing the stress on the circuit and power supply during capacitor charging, thereby protecting the safe operation of the power supply and circuit. Pre-charge resistors are also used in energy storage battery systems, particularly during the pre-charge phase. They control the charging current of the energy storage tank during the initial charging phase, preventing arcing or overcurrent caused by excessive current, thereby protecting the safe operation of the battery and power system.
[0045] Fuse 33 monitors the current flow in the circuit. When the current exceeds a set value, the fuse quickly disconnects the circuit, preventing damage to the equipment caused by excessive current. This function is particularly important in energy storage boxes, as the battery packs within the box may experience current fluctuations during charging and discharging. The fuse effectively prevents safety incidents caused by these fluctuations. During the charging and discharging process, the energy storage battery pack may experience overcharge or overdischarge. Both of these situations can damage the battery pack and even cause safety incidents. The fuse monitors the current flow and immediately disconnects the circuit upon detecting overcharge or overdischarge, thereby protecting the battery pack. The circuits within the energy storage box may short-circuit or overload for various reasons. A short-circuit causes a sudden surge in current, while an overload causes the current to remain high for an extended period. Both situations can cause serious consequences, such as fire. The fuse quickly disconnects the circuit, preventing these dangerous situations from occurring.
[0046] Relay 31 serves as a circuit control element in the high-voltage box. It can connect or disconnect the high-voltage circuit as needed, enabling remote or automatic control of equipment. When the current in the high-voltage circuit exceeds a set value, the relay automatically disconnects the circuit, preventing damage to the equipment due to overload. If a short circuit occurs in the high-voltage circuit, the relay quickly isolates the faulty section, protecting other components from damage. The relay also monitors the grid voltage and automatically disconnects the circuit when the voltage falls below or exceeds the rated value, protecting the equipment from damage due to undervoltage or overvoltage.
[0047] The second-layer mounting bracket 22 is equipped with guide rails for mounting sliding components. The sides of the second-layer component mounting plate 23 and the second-layer mounting bracket 22 are both folded with through-holes for cable tie holders. Cable ties, also known as cable ties, cable ties, or locking ties, are practical bundling tools used for tying things together. Cable ties can be used on the cable tie holders to tie wire harnesses, ensuring neat routing inside the box.
[0048] The panel terminals include primary and secondary terminals. The primary terminals are located on one side of the central axis of the enclosure 11, and the secondary terminals are located on the other side. The primary terminals are power terminals, connecting thick wires and conducting current. The secondary terminals are communication terminals, responsible for sampling and monitoring internal product data. Primary terminals typically connect to high-voltage equipment within the substation, such as the high-voltage side of the transformer and the incoming side of the circuit breaker. They carry the important task of directing electrical energy from the transmission line to the power supply equipment and are the starting point of power transmission. The secondary terminals connect to low-voltage equipment within the substation, such as distribution cabinets and control room equipment. They transmit the low-voltage power output of the transformer to user electrical equipment and are also used for measuring, protecting, and controlling power quality. They connect to low-voltage equipment, which has a lower voltage level than the primary terminals. In the power system, secondary terminals play a role in connection, distribution, signal transmission, and control.
[0049] Example 2
[0050] An energy storage container utilizes the two-cluster-in-one high-voltage box described in the first embodiment.
[0051] Example 3
[0052] See also Figure 1 , a two-cluster-in-one high-pressure box consists of a box body 11, a box cover 12, a box body sealing gasket 13, and a dust cover 14; optional, see Figure 3 , a two-cluster-in-one high-voltage box with internal components distributed in mirror-image symmetry on the left and right. The components on one side include circuit breakers, connecting copper bars, relays, pre-charge groups, battery management modules, etc.; see Figure 3 、 Figure 4 and Figure 5 The interior of a two-cluster-in-one high-voltage box is divided into an upper and lower layer structure, which increases space utilization while ensuring a safe distance between components. The layout of the upper and lower layers of the high-voltage box meets the design principle of larger upper layer and smaller lower layer, more upper layer and less lower layer. The weight of the two-cluster-in-one high-voltage box is evenly distributed front to back, meeting strength requirements and facilitating production and transportation. The panel terminal layout of the two-cluster-in-one high-voltage box is evenly arranged based on the central axis of the box body 11, with the primary line terminal below the central axis and the secondary line terminal above the central axis.
[0053] like Figure 1 The figure shows the structural layout of the dual-cluster high-voltage box proposed in this embodiment. The box body 11, box cover 12, box gasket 13, and dust cover 14 are connected by bolts. The box gasket 13 provides cushioning and waterproofing. The rear of the box body 11 features heat dissipation holes for convection circulation with external air, and a dust cover 14 is installed to prevent dust ingress. The box body 11 is welded with mounting lugs with U-shaped holes for easy installation on a container.
[0054] like Figure 2 The figure shows the structure of the dust cover for the dual-cluster high-voltage box proposed in this embodiment. The dust cover 14 consists of a dustproof structural member 141, a dustproof sealing gasket 142, and dustproof cotton 143. A guide hole is provided at the bottom of the dustproof structural member 141 to prevent splashing liquid from entering the box body 11. The dustproof structural member 141 has a folded edge to limit the dustproof cotton 143.
[0055] like Figure 3 The figure shows the internal structure of a two-cluster-in-one high-voltage box proposed in this embodiment. The interior of the box body 11 is composed of a bottom device mounting plate 21, a tail device mounting seat, a second-layer mounting bracket 22, a PC insulating plate 24 and a circuit breaker mounting plate 25. The functions of the tail device mounting seat include: 1. Supporting the circuit breaker; 2. Installing devices such as pre-charge resistors; 3. In order to meet the heat dissipation requirements, it serves as an air duct for the transition of internal and external gas flow of the box body; After the fan mounting plate and the spoiler fan are assembled together, they are installed on the tail device mounting seat for easy disassembly and maintenance; the bottom device mounting plate 21 is fixed to the box body 11 by rivet nuts; the bottom of the second-layer mounting bracket 22 is fixed to the bottom device mounting plate 21 by bolts, and the top of the second-layer mounting bracket 22 is fixed to the second-layer device mounting plate 23 by bolts, which is used to support the second-layer device mounting plate 23 and the installation of the second-layer device mounting plate 23. The second-layer mounting bracket 22 is equipped with a guide rail to facilitate the installation of matching rail components. A mounting plate holder is welded to the side wall of the box 11. One end of the second-layer mounting plate 23 is connected to the box holder, and the other end is fixed to the second-layer mounting bracket 22. The sides of the second-layer mounting plate 23 and the second-layer mounting bracket 22 are both folded with round holes to accommodate cable tie holders for convenient wiring. A PC insulation board 24 is installed on the bottom-layer mounting plate 21, located in the middle of the box 11, to enhance the insulation performance between the two clusters and prevent the impact of arcing caused by the circuit breaker 32. The circuit breaker mounting plate 25 is used to install the circuit breaker. The circuit breaker mounting plate 25 is replaceable to adapt the high-voltage box to different circuit breakers.
[0056] Figure 4 The figure shows the layout of the underlying components of a two-in-one high-voltage box proposed in this embodiment. The underlying components include fuses 33, relays 31, circuit breakers 32, and copper busbars 34. The underlying components are connected to each other via rigid copper busbars, and the panel terminals of the box 11 are connected to the underlying components via flexible connectors, forming a circuit. Circuit breaker 32 controls the entire circuit. The underlying components and copper busbar circuits of the two high-voltage boxes are arranged in mirror-image symmetry about the central axis of the box 11.
[0057] like Figure 5The figure shows the layout of all components inside the box 11 of a two-cluster-in-one high-voltage box proposed in this embodiment. A battery management module 42, a switching power supply 43, an intermediate relay 44 and a power terminal block 45 are installed on the second-layer mounting bracket 22; the battery management module 42, the switching power supply 43, the intermediate relay 44 and the power terminal block 45 are all interconnected by cables. The battery management system 42 is the main controller, responsible for reading the data of the components inside the box and the products outside the box. The switching power supply 43 provides power for the period when the box needs electric power. The internal device layout of the box 11 is based on the central axis of the box 11 and is mirror-symmetrical on the left and right. The weight of the internal devices of the box 11 is based on the front and back central axis of the box 11, and is balanced front to back and left to right. The internal device layout of the box 11 is based on the height central axis of the box 11 and is balanced up and down.
[0058] Figure 6 The figure shows a schematic diagram of the internal heat dissipation design of the box body 11 of a two-cluster-in-one high-voltage box proposed in this embodiment. Figure 1 The embodiment shown is a two-cluster-in-one high-pressure box with a heat dissipation hole on the rear side of the box body 11, and a dust cover 14 is installed on the outside; among the three heat dissipation holes, the middle heat dissipation hole is an air outlet, which sends out the internal hot air flow of the box body 11 under the action of the turbulent fan, and the heat dissipation holes on the left and right sides are air inlets, which naturally inhale the external air flow through the internal pressure difference of the box body 11, forming a circulation inside the box body 11, and balancing the internal temperature of the box body 11 to meet the operating temperature requirements of the internal components.
[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit its scope of protection. Although the present invention has been described in detail with reference to the above embodiments, ordinary technicians in the relevant field should understand that after reading the present invention, those skilled in the art can still make various changes, modifications or equivalent substitutions to the specific implementation methods of the utility model, but these changes, modifications or equivalent substitutions are all within the scope of protection of the pending claims of the utility model.
Claims
1. A two-cluster-in-one high-voltage box, characterized in that: The invention comprises a box body (11), a double-layer mounting assembly is arranged inside the box body (11), and the double-layer mounting assembly comprises a bottom device mounting plate (21), a second-layer mounting bracket (22) and a second-layer device mounting plate (23), the bottom of the bottom device mounting plate (21) is fixedly connected to the inner wall of the box body (11), the bottom of the second-layer mounting bracket (22) is fixed on the bottom device mounting plate (21), one end of the second-layer device mounting plate (23) is fixedly connected to the side top of the second-layer mounting bracket (22), a mounting plate fixing seat is arranged on the side wall of the box body (11), and the other end of the second-layer device mounting plate (23) is connected to the mounting plate fixing seat; the bottom device is mounted on the bottom device mounting plate (21), the second-layer device is mounted on the second-layer mounting bracket (22) and the second-layer device mounting plate (23), the bottom device and the second-layer device are hard-connected, and the box body (11) is provided with a panel terminal, and the panel terminal is soft-connected to the bottom device and the second-layer device.
2. The two-cluster-in-one high-voltage box according to claim 1, characterized in that: Two second-layer device mounting plates (23) are provided, one second-layer device mounting plate (23) is fixedly connected to the top of one side of the second-layer mounting bracket (22), and the other second-layer device mounting plate (23) is fixedly connected to the top of the other side of the second-layer mounting bracket (22).
3. The two-cluster-in-one high-voltage box according to claim 1, characterized in that: The second-layer device includes a battery management module (42), a switching power supply (43), an intermediate relay (44) and a power terminal block (45). The battery management module (42), the switching power supply (43), the intermediate relay (44) and the power terminal block (45) are connected to each other. The switching power supply (43) is arranged on the second-layer mounting bracket (22), the battery management module (42) is arranged on the second-layer device mounting plate (23), and the intermediate relay (44) is arranged between the second-layer mounting bracket (22) and the second-layer device mounting plate (23).
4. The two-cluster-in-one high-voltage box according to claim 1, characterized in that: The double-layer mounting assembly further comprises a PC insulating plate (24), a tail device mounting seat, a tail device mounting plate (27) and a circuit breaker mounting plate (25); the PC insulating plate (24) is arranged on the bottom device mounting plate (21), the PC insulating plate (24) is arranged in the middle of the box (11), the bottom of the tail device mounting seat is fixedly connected to the inner wall of the box (11), a gap is arranged between the tail device mounting seat and the bottom device mounting plate (21), the circuit breaker mounting plate (25) is installed on the tail device mounting seat, two circuit breaker mounting plates (25) are arranged, a fan mounting plate (26) is arranged between the two circuit breaker mounting plates (25), the tail device mounting plate (27) is arranged outside the circuit breaker mounting plate (25) and the fan mounting plate (26), and a spoiler fan is installed on the fan mounting plate (26).
5. The two-cluster-in-one high-voltage box according to claim 4, characterized in that: A box cover (12) is installed on the box body (11), a box sealing gasket (13) is arranged between the box cover (12) and the box body (11), a heat dissipation through hole is opened on the side of the box body (11), the heat dissipation through hole includes an air outlet and an air inlet, the air outlet is arranged opposite to the turbulent fan, and a hanging ear is arranged on the outside of the box body (11).
6. The two-cluster-in-one high-voltage box according to claim 5, characterized in that: A dust cover (14) is installed outside the heat dissipation through hole, and the dust cover (14) includes a dust-proof structural part (141), a dust-proof sealing gasket (142) and dust-proof cotton (143). A guide hole is set at the bottom of the dust-proof structural part (141), and the dust-proof cotton (143) is placed inside the dust-proof structural part (141). A limiting folding edge is set on the side of the dust-proof structural part (141).
7. The two-cluster-in-one high-voltage box according to claim 1, characterized in that: The bottom layer components include a fuse (33), a relay (31), a circuit breaker (32) and a copper busbar (34). The copper busbar (34) includes a soft copper busbar and a hard copper busbar. The fuse (33), the relay (31) and the circuit breaker (32) are connected via the hard copper busbar. The panel terminal is connected to the bottom layer components via the soft copper busbar. The circuit breaker (32) is installed on the circuit breaker mounting plate (25). The fuse (33), the relay (31) and the copper busbar (34) are installed on the bottom layer component mounting plate (21). A pre-charging resistor (41) and a pre-charging resistor relay (411) are installed on the tail component mounting plate (27). The pre-charging resistor (41) is connected to the pre-charging resistor relay (411).
8. The two-cluster-in-one high-voltage box according to claim 1, characterized in that: The second-layer mounting bracket (22) is provided with a guide rail, and the sides of the second-layer device mounting plate (23) and the second-layer mounting bracket (22) are both provided with folded edges, through holes are provided on the folded edges, and the through holes are provided with tie fixing seats.
9. The two-cluster-in-one high-voltage box according to claim 1, characterized in that: The panel terminal comprises a primary line terminal and a secondary line terminal, wherein the primary line terminal is arranged on one side of the central axis of the box body (11), and the secondary line terminal is arranged on the other side of the central axis of the box body (11).
10. An energy storage container, characterized in that: Utilize the two-cluster-in-one high-voltage box described in any one of claims 1-9.