High-voltage cascade energy storage container insulation battery rack and energy storage system

Abstract

The utility model relates to energy storage system technical field discloses a kind of high-pressure cascade energy storage container insulated battery rack and energy storage system, the battery rack includes the I-beam base in energy storage container, rectangular column, I-shaped column, mounting guide rail group and square welded frame;I-beam base is arranged into matrix array and is fixed in box, rectangular column is arranged in the matrix array both sides of I-beam base, I-shaped column is parallelly arranged between two rectangular column rows, and column is all fixedly connected with base one by one;Adjacent column row forms spacing area, and its bottom, top each is equipped with square welded frame;Mounting guide rail group contains two opposite guide rails, is connected in adjacent column row respectively, is arranged in sequence along column row height, for supporting battery pack;I-beam base, column etc. are all used insulation material.The utility model can meet the insulation requirement of high-pressure cascade system, improve space utilization, simplify assembly, adapt to a variety of energy storage needs, applicable to high-pressure cascade energy storage scene.

Description

Technical Field

[0001] This utility model relates to the field of energy storage system technology, and in particular to a high-voltage cascaded energy storage container insulated battery rack and energy storage system. Background Technology

[0002] With the rapid development of the new energy industry, energy storage systems are increasingly widely used in power peak shaving, frequency regulation, and backup power. Compared with traditional low-voltage energy storage systems, high-voltage cascaded energy storage systems, as a new technological approach, have higher cycle efficiency and can avoid the problem of unbalanced state of charge between battery modules in traditional methods, reducing effective capacity decay after long-term operation. However, due to its high-voltage characteristics, it requires larger electrical clearances and insulation distances between battery modules compared to traditional low-voltage energy storage systems, resulting in a larger overall battery rack frame and an excessively large overall size of the energy storage container, affecting transportation and hoisting.

[0003] To meet the electrical clearance, safety clearance, and creepage distance requirements of high-voltage cascaded energy storage systems, the industry typically addresses these issues by increasing the gaps between battery racks or adding large-area insulating panels. However, both solutions have significant drawbacks: Low space utilization: Increasing the gap between battery racks or adding insulating materials will significantly increase the overall size of the energy storage container under the same energy storage capacity. This not only occupies more space resources, but also causes inconvenience to the transportation and hoisting of the container, increasing logistics costs. High cost and processing difficulty: The procurement cost of large-area insulation boards is high, and the installation process is time-consuming and labor-intensive, requiring professional personnel for precise positioning and fixing, which increases the production and processing difficulty and overall cost of energy storage systems. Poor adaptability: Traditional solutions are difficult to adapt flexibly to high-voltage cascaded energy storage systems with different capacity requirements. When the system capacity is adjusted, the battery rack structure needs to be redesigned, resulting in low versatility.

[0004] Currently, there is no mature technical solution in the industry that can effectively reduce the size of the battery rack and lower the cost while meeting high-voltage insulation requirements. There is an urgent need for a new type of insulated battery rack structure to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to overcome the shortcomings of existing high-voltage cascaded energy storage container battery racks, such as large size, high cost, and high processing difficulty, and to provide a high-voltage cascaded energy storage container insulated battery rack and energy storage system. By optimizing the structure of the battery rack, the overall footprint of the battery rack and the size of the container are significantly reduced while meeting electrical insulation requirements, thereby reducing production and logistics costs.

[0006] To achieve the above objectives, this utility model provides the following solution: A high-voltage cascaded energy storage container insulated battery rack and energy storage system includes multiple king-shaped beam bases, multiple rectangular columns, multiple I-shaped columns, multiple mounting rail assemblies, and multiple square welded frames installed inside the energy storage container. Several of the aforementioned king-shaped beam bases are arranged sequentially to form a king-shaped beam base row. Multiple rows of king-shaped beam bases are arranged in parallel to each other to form a king-shaped beam base matrix array. The king-shaped beam base matrix array is fixedly connected to the energy storage container body. Several rectangular columns are arranged in sequence to form a row of rectangular columns. Two rows of rectangular columns are vertically set on the rows of Wangzi beam bases on the left and right sides of the Wangzi beam base matrix array, and the rectangular columns are fixedly connected to the Wangzi beam bases one by one. Several I-shaped columns are arranged in sequence to form an I-shaped column row. Multiple rows of I-shaped columns are arranged parallel to each other between two rows of rectangular columns, and the I-shaped columns are fixedly connected to the Wang-shaped beam base one by one. Several interval areas are formed on two adjacent rows of I-shaped columns or between adjacent rows of I-shaped columns and rectangular columns. A square welded frame is set at the bottom and top of each interval area. The square welded frame at the bottom is set at the top of the Wang-shaped beam base, and the square welded frame at the top is set at the top of the rectangular columns and I-shaped columns. The mounting guide rail assembly includes two guide rails arranged opposite each other on the left and right. The two guide rails of each mounting guide rail assembly are respectively connected to two adjacent columns of I-shaped columns or adjacent columns of I-shaped columns and rectangular columns. Multiple mounting guide rail assemblies are arranged sequentially along the height direction of the rectangular columns or I-shaped columns. The mounting guide rail assembly is used to place the battery pack, and the two guide rails are used to support the left and right ends of the battery pack. The Wang-shaped beam base, rectangular columns, and I-shaped columns are all made of insulating materials.

[0007] Furthermore, the square welded frame is formed by welding several horizontally and vertically arranged L-shaped angle steels.

[0008] Furthermore, the bottom square welded frame is connected to the I-shaped column row, rectangular column row, and king-shaped beam base row with standard fasteners, and the top square welded frame is connected to the I-shaped column row and rectangular column row with standard fasteners; the square welded frame, I-shaped column row, rectangular column row, and king-shaped beam base row together form the battery rack frame.

[0009] Furthermore, multiple support plates are welded to the bottom of the guide rail, and the multiple support plates are arranged sequentially along the length of the guide rail for fixed connection with the I-shaped column row or rectangular column row.

[0010] Furthermore, the guide rail is an L-shaped welded plate.

[0011] Furthermore, the guide rail has a downward bent edge at the battery pack inlet, which is used to fix the battery pack on the guide rail by a fixing mounting plate after the battery pack is installed in place.

[0012] Furthermore, the materials of the Wang-shaped beam base, rectangular column, and I-shaped column are all unsaturated polyester glass fiber, and the materials of the mounting guide rail assembly and square welded frame are carbon steel.

[0013] Furthermore, the outer structure of the Wang-shaped beam base is umbrella-shaped.

[0014] This utility model also provides a high-voltage cascaded energy storage system, including the above-mentioned high-voltage cascaded energy storage container insulated battery rack and multiple battery packs; the battery packs are placed on the mounting rail assembly and fixed by the cooperation of the fixed mounting plate and the bent edge of the rail.

[0015] According to the specific embodiments provided by this utility model, the high-voltage cascaded energy storage container insulated battery rack and energy storage system provided by this utility model disclose the following technical effects: 1. Excellent insulation performance to meet high-voltage safety requirements: Core components such as the king-shaped beam base, rectangular columns, and I-shaped columns are all made of insulating materials (such as unsaturated polyester glass fiber). The umbrella-shaped structure of the king-shaped beam base increases the creepage distance. Combined with the overall insulating frame design, it can effectively isolate the electrical clearance and safety clearance in the high-voltage cascade system, avoid electromagnetic interference between different battery packs, meet the stringent insulation requirements of high-voltage cascaded energy storage scenarios, and improve the system's operational safety. 2. Stable structure, strong load-bearing capacity and adaptability: The matrix array of the king-shaped beam base forms a stable support foundation, combined with the three-dimensional frame structure composed of rectangular column rows, I-shaped column rows and square welded frame, which has a strong overall load-bearing capacity; the installation guide rail assembly is fixed to the column through the support plate, and the guide rail spacing is adapted to the size of the battery pack, which can stably support battery packs of different specifications. At the same time, the bent edge design, together with the fixed installation plate, ensures that the battery pack is installed firmly and avoids displacement during operation. 3. High space utilization and reduced container costs: The matrix column layout and layered installation guide rail design enable high-density battery pack arrangement in a limited space; the insulation components are replaced with traditional large-area insulation boards through structural optimization (such as umbrella-shaped base and I-shaped columns), which reduces structural redundancy while meeting insulation requirements, and can reduce the overall volume of the battery rack, thereby reducing the size of the energy storage container and reducing site occupation and transportation costs. 4. Easy assembly and good versatility: All components are connected by standard fasteners, and the assembly relationship between the square welded frame and the columns and base is clear, making the installation process simple; by adjusting the number of column rows and the number of guide rail layers, it can flexibly adapt to different capacity energy storage needs without redesigning the overall structure, making it suitable for a variety of high-voltage cascaded energy storage scenarios and reducing customization costs; 5. Excellent system integration: The energy storage system achieves orderly arrangement and fixation of battery packs through insulated battery racks. The electrical connection between battery packs can be directly based on the frame structure layout, reducing additional support or insulation components, simplifying the system integration process, and improving overall assembly efficiency and reliability. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the embodiments 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 these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the insulating battery rack of the high-voltage cascaded energy storage container of this utility model; Figure 2 This is a schematic diagram showing the arrangement and composition of the guide rails in the battery rack for battery pack installation and fixing according to this utility model; Figure 3 This is a schematic diagram of the installation of the battery pack of this utility model on the guide rail and connected to the fixed mounting plate (i.e.) Figure 1 (Enlarged view at point A in the middle) Figure 4 This is a schematic diagram of the external structure of the king-shaped beam base in the battery rack of this utility model (i.e.) Figure 1 (Enlarged view at point B in the middle) Figure 5 The images show a side view and a perspective view of the king-shaped beam base in the battery rack of this utility model, where (a) is a side view and (b) is a perspective view. Figure 6 This is a schematic diagram of the external structure of the I-shaped column in the battery rack of this utility model (i.e.) Figure 1 (Enlarged view at point C) Figure 7 This is a schematic diagram of the bent edge structure of the guide rail of this utility model (i.e.) Figure 1 (Enlarged view at point D) Figure 8 This is a schematic diagram of the square welding frame of this utility model; Explanation of reference numerals in the attached diagram: 1-Wang-shaped beam base, 2-Rectangular column, 3-I-shaped column, 4-Guide rail assembly, 5-Square welded frame, 51-Bottom square welded frame, 52-Top square welded frame, 511-Horizontal L-shaped angle steel, 512-Vertical L-shaped angle steel, 6-Guide rail, 61-Support plate, 62-Bent edge, 7-Battery pack, 8-Fixed mounting plate. Detailed Implementation

[0018] 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 present utility model.

[0019] In this patent description, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "center," "longitudinal," "transverse," "vertical," and "horizontal," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They 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, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0020] The purpose of this utility model is to provide a high-voltage cascaded energy storage container insulated battery rack and energy storage system. By replacing the traditional sheet metal column battery rack with an insulated battery rack, the overall space occupied by the battery rack and the area occupied by the container are effectively reduced. By optimizing the spatial structure, battery pack stacking is realized, increasing the energy storage capacity. The structure is simple, easy to maintain, and has high practical engineering application value.

[0021] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] Example 1 like Figures 1-8 As shown, the high-voltage cascaded energy storage container insulating battery rack provided by this utility model includes multiple (e.g., 25) king-shaped beam bases 1, multiple (e.g., 10) rectangular columns 2, multiple (e.g., 15) I-shaped columns 3, multiple (e.g., 32) mounting guide rail assemblies 4, and multiple (e.g., 8) square welded frames 5, which are installed inside the energy storage container. Five of the aforementioned king-shaped beam bases 1 are arranged sequentially to form a king-shaped beam base row. The spacing between two adjacent king-shaped beam bases 1 is usually 412mm, and the spacing can be adjusted according to the actual length of the guide rail 6. The five rows of king-shaped beam bases are arranged in parallel to each other to form a king-shaped beam base matrix array. The king-shaped beam base matrix array is fixedly connected to the energy storage container body. The king-shaped beam base rows are fixed in a preset position inside the energy storage container body by expansion bolts to ensure that the base rows are horizontal and stable.

[0023] The material of the Wang-shaped beam base 1 is unsaturated polyester glass fiber, and its external structure is an umbrella-shaped cluster, such as... Figure 4and Figure 5 As shown, its function is to increase the surface creepage distance under a certain height through a special umbrella group structure. The number of umbrella group structures of the Wangzi beam base 1 can be adjusted according to the actual creepage distance requirements. Usually, 8-12 layers of umbrella groups are set, and the spacing between each layer of umbrella groups is 15-20mm to ensure that the creepage distance meets the insulation standards of high-voltage cascaded systems (such as 10kV and above).

[0024] Five rectangular columns 2 are arranged sequentially to form a rectangular column row. Two rows of rectangular columns are vertically set on the left and right sides of the Wangzi beam base array, and the rectangular columns 2 are fixedly connected to the Wangzi beam base 1 in a one-to-one correspondence. The rectangular columns 2 are made of unsaturated polyester glass fiber and have an I-shaped structure. Their function is to increase the surface creepage distance with a fixed width by means of the I-shaped structure.

[0025] Five I-shaped columns 3 are arranged sequentially to form an I-shaped column row. Three rows of I-shaped columns are positioned parallel to each other between two rows of rectangular columns, and each I-shaped column 3 is fixedly connected to the king-shaped beam base 1. The I-shaped columns 3 are also made of unsaturated polyester glass fiber and have a rectangular shape. The web thickness of the I-shaped column is 20-30mm, and the flange width is 30-40mm, maximizing creepage distance while ensuring structural strength. The rectangular columns have a cross-sectional dimension of 70mm × 100mm to accommodate side support requirements.

[0026] Four interval zones are formed between two adjacent rows of I-shaped columns or between adjacent rows of I-shaped columns and rectangular columns. The spacing between these interval zones is typically 800-820mm to accommodate the installation of the battery pack and guide rails 6. Each interval zone has a square welded frame 5 at both its bottom and top; the bottom square welded frame 5 is located at the top of the king-shaped beam base 1, and the top square welded frame 5 is located at the top of the rectangular columns 2 and I-shaped columns 3. The square welded frames 5, the I-shaped columns, the rectangular columns, and the king-shaped beam bases are fixedly connected using standard fasteners to form the battery rack frame.

[0027] like Figure 8 As shown, the square welded frame 5 is formed by welding together several (e.g., 4) transversely arranged L-shaped angle steels 511 and (2) longitudinally arranged L-shaped angle steels 512. Taking the square welded frame 5 at the lower left corner of the battery rack frame as an example, it is placed on the king-shaped beam base 1, connected to the rectangular column row on the left and the I-beam column row on the right, and connected together by standard fasteners (bolts). Similarly, the square welded frame 5 at the top is symmetrically arranged to the square welded frame 5 at the bottom, and connected to the rectangular column row and the I-beam column row on the left and right sides respectively.

[0028] The mounting guide rail group 4 includes two guide rails 6 arranged opposite each other on the left and right. The two guide rails 6 of each mounting guide rail group 4 are respectively connected to two adjacent columns of I-shaped columns or adjacent columns of I-shaped columns and rectangular columns. In each interval area, eight mounting guide rail groups 4 are arranged sequentially along the height direction of the rectangular column or I-shaped column. The mounting guide rail group 4 is used to place the battery pack, and the two guide rails 6 are used to support the left and right ends of the battery pack.

[0029] For example, the mounting rail assembly 4 and the square welded frame 5 are made of carbon steel.

[0030] The spacing between the two guide rails 6 in the mounting guide rail group 4 is matched with the length of the battery pack, typically 790-800mm. The length of the guide rails is designed according to the internal length of the container to ensure that the battery pack can be placed completely.

[0031] The guide rail 6 is an L-shaped welded plate. Multiple (e.g., 5) support plates 61 are welded to the bottom of the guide rail 6. These support plates 61 are arranged sequentially along the length of the guide rail 6 and are used for fixed connection to the I-shaped column row or rectangular column row. The number of support plates 61 on each guide rail 6 can be the same as the number of I-shaped columns in the I-shaped column row or the number of rectangular columns in the rectangular column row, which is 5 in total. That is, the support plates 61 are fixedly connected one-to-one to the I-shaped column 3 or the rectangular column 2.

[0032] Combination Figure 7 The guide rail 6 has a downward bent edge 62 at the battery pack inlet, which is used to allow the battery pack to pass through the fixed mounting plate 8 (e.g., after it is installed in place) Figure 3 As shown in the figure, the battery pack is fixed on the guide rail 6.

[0033] The aforementioned high-voltage cascaded energy storage container insulated battery rack can accommodate 160 battery packs, increasing the energy storage capacity.

[0034] Example 2 This utility model also provides a high-voltage cascaded energy storage system, including the above-mentioned high-voltage cascaded energy storage container insulated battery rack and multiple battery packs 7; the battery packs 7 are placed on the mounting rail assembly 4 and fixed by the fixed mounting plate 8 and the bent edge 62 of the rail 6.

[0035] The electrical connections between the battery packs 7 meet the voltage and current requirements of the high-voltage cascaded energy storage system, and the insulation structure of the battery rack can effectively isolate electromagnetic interference between the battery packs 7, ensuring stable system operation.

[0036] In summary, the high-voltage cascaded energy storage containerized insulated battery rack and energy storage system provided by this utility model, due to the use of insulating materials for the base and column beams, and the adoption of a king-shaped beam base with an umbrella-shaped structure, can increase the surface creepage distance under a given height. Similarly, the I-shaped column structure, with a given width, can also increase the surface creepage distance due to its external shape. Therefore, under the same creepage distance requirement, the battery rack provided by this utility model is smaller in both height and width compared to traditional sheet metal battery cluster racks, resulting in a smaller overall footprint and thus a smaller container size for the entire energy storage system.

[0037] This document uses specific examples to illustrate the principles and implementation methods of this utility model. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this utility model. Furthermore, those skilled in the art will recognize that, based on the ideas of this utility model, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this utility model.

Claims

1. A high-voltage cascaded energy storage container insulating battery rack, characterized in that, Includes multiple king-shaped beam bases (1), multiple rectangular columns (2), multiple I-shaped columns (3), multiple mounting rail assemblies (4), and multiple square welded frames (5) installed inside the energy storage container. Several of the aforementioned king-shaped beam bases (1) are arranged in sequence to form a king-shaped beam base row. Multiple rows of king-shaped beam bases are arranged in parallel to each other to form a king-shaped beam base matrix array. The king-shaped beam base matrix array is fixedly connected to the energy storage container body. Several rectangular columns (2) are arranged in a row to form a rectangular column row. Two rows of rectangular columns are vertically set on the left and right sides of the Wangzi beam base matrix array, and the rectangular columns (2) are fixedly connected to the Wangzi beam base (1) one by one. Several I-shaped columns (3) are arranged in sequence to form an I-shaped column row. Multiple rows of I-shaped columns are arranged parallel to each other between two rows of rectangular columns, and the I-shaped columns (3) are fixedly connected to the Wang-shaped beam base (1) one by one. Several interval areas are formed on two adjacent rows of I-shaped columns or between adjacent rows of I-shaped columns and rectangular columns. A square welded frame (5) is set at the bottom and top of each interval area. The square welded frame (5) at the bottom is set at the top of the Wang-shaped beam base (1), and the square welded frame (5) at the top is set at the top of the rectangular column (2) and the I-shaped column (3). The mounting guide rail group (4) includes two guide rails (6) arranged opposite to each other on the left and right. The two guide rails (6) of each mounting guide rail group (4) are respectively connected to two adjacent columns of I-shaped columns or adjacent columns of I-shaped columns and rectangular columns. Multiple mounting guide rail groups (4) are arranged sequentially along the height direction of the rectangular columns or I-shaped columns. The mounting guide rail group (4) is used to place the battery pack (7), and the two guide rails (6) are used to support the left and right ends of the battery pack (7). The Wang-shaped beam base (1), rectangular column (2) and I-shaped column (3) are all made of insulating materials.

2. The high-voltage cascaded energy storage container insulating battery rack according to claim 1, characterized in that, The square welded frame (5) is formed by welding several horizontally and vertically arranged L-shaped angle steels.

3. The high-voltage cascaded energy storage container insulating battery rack according to claim 1, characterized in that, The bottom square welded frame (5) is connected to the I-shaped column row, the rectangular column row, and the king-shaped beam base row by standard fasteners. The top square welded frame (5) is connected to the I-shaped column row and the rectangular column row by standard fasteners. The square welded frame (5), the I-shaped column row, the rectangular column row, and the king-shaped beam base row form the battery rack frame.

4. The high-voltage cascaded energy storage container insulating battery rack according to claim 1, characterized in that, The bottom of the guide rail (6) is welded with multiple support plates (61), which are arranged sequentially along the length of the guide rail (6) for fixed connection with the I-shaped column row or rectangular column row.

5. The high-voltage cascaded energy storage container insulating battery rack according to claim 1, characterized in that, The guide rail (6) is an L-shaped welded plate.

6. The high-voltage cascaded energy storage container insulating battery rack according to claim 1, characterized in that, The guide rail (6) has a downward bent edge (62) at the battery pack inlet, which is used to fix the battery pack on the guide rail (6) by the fixing plate (8) after the battery pack is installed in place.

7. The high-voltage cascaded energy storage container insulating battery rack according to claim 1, characterized in that, The materials of the Wang-shaped beam base (1), rectangular column (2) and I-shaped column (3) are all unsaturated polyester glass fiber, and the materials of the mounting guide rail assembly (4) and square welded frame (5) are carbon steel.

8. The high-voltage cascaded energy storage container insulating battery rack according to claim 1, characterized in that, The outer structure of the Wang-shaped beam base (1) is umbrella-shaped.

9. A high-voltage cascaded energy storage system, characterized in that, It includes the high-voltage cascaded energy storage container insulated battery rack and multiple battery packs (7) as described in any one of claims 1-8; the battery packs (7) are placed on the mounting rail assembly (4) and fixed by the fixed mounting plate (8) and the bent edge (62) of the rail (6).

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