Battery fixing structure of energy storage container and energy storage container

Abstract

The invention relates to the technical field of energy storage equipment, and discloses an energy storage container battery fixing structure and an energy storage container. The battery fixing structure comprises a plurality of stand columns and a plurality of guide rail sets; the stand columns are connected with an energy storage container body, and the multiple stand columns are sequentially arranged to form multiple parallel stand column rows. Each guide rail group comprises two guide rails, the two guide rails are connected to the stand columns of the two adjacent stand column rows respectively and correspond to each other, and the multiple guide rail groups are sequentially arranged in the height direction of the stand column rows and used for containing battery packs; the guide rail is an L-shaped plate; a downward bending part I is arranged at the front end of the guide rail, and a welding nut is arranged on the downward bending part I; the tail part of the guide rail is provided with an inward bent part II, and a waist-shaped through hole is formed in the bent part II; and the tail parts of the two guide rails of the same guide rail group are connected into a whole through a transverse connecting plate. The battery pack fixing device is simple in structure, convenient to disassemble and assemble and capable of achieving stable fixing and reliable transportation of a battery pack.

Description

Technical Field

[0001] This invention relates to the field of energy storage equipment technology, and in particular to a battery fixing structure for an energy storage container and an energy storage container. Background Technology

[0002] In energy storage systems, energy storage containers, as integrated energy storage equipment carriers, are widely used due to their advantages such as flexible deployment, high space utilization, and ease of transportation. The battery rack, as the core component inside the energy storage container that carries the battery pack, directly affects the stability and safety of the battery pack installation, as well as the convenience of subsequent maintenance.

[0003] Currently, battery racks in existing energy storage containers typically use methods such as front-end bolt fixing or top-level locking (non-contact crimping) to secure battery packs. However, given that 104S battery packs are generally around 2 meters deep and the container walls at the rear of the pack are enclosed, the rear of the pack cannot be properly secured or completely locked. Using only front-end bolts for fixation makes the battery pack prone to displacement during container transport or when subjected to external impacts, posing a safety hazard. Furthermore, in the field of mobile energy storage containers, due to the frequent transport of containers under various road conditions, front-end bolt fixing offers limited strength and poor shock resistance, impacting the electrical performance and lifespan of the battery pack.

[0004] Therefore, there is an urgent need for a battery fixing structure and energy storage container with a reasonable structural design that can securely fix the battery pack and effectively prevent the battery pack from shifting during transportation. Summary of the Invention

[0005] The purpose of this invention is to address the problems in the existing technology where the battery pack is only fixed at the front end, resulting in limited fixing strength, and the limited space in the container leads to the inability to fix the rear end of the battery pack and poor shock resistance. This invention provides a battery fixing structure for an energy storage container and an energy storage container to achieve stable fixing and reliable transportation of the battery pack.

[0006] To achieve the above objectives, the present invention provides the following solution: A battery fixing structure for an energy storage container includes multiple columns and multiple guide rail assemblies; the columns are used to connect to the container body of the energy storage container, and the multiple columns are arranged sequentially to form multiple parallel columns. Each guide rail group includes two guide rails, which are respectively connected to the columns of two adjacent column rows and correspond to each other. Multiple guide rail groups are arranged sequentially along the height direction of the column rows for placing battery packs. The guide rail is an L-shaped plate; the front end of the guide rail is provided with a downward bending part one, and a welding nut is arranged on the bending part one for fixing the front end of the battery pack to the guide rail by bolts; the rear end of the guide rail is provided with an inward bending part two, and the bending part two has an oblong through hole for fixing the battery rack to the energy storage container body by bolts; the rear ends of two guide rails in the same guide rail group are connected into one piece by a transverse connecting plate.

[0007] Furthermore, a limiting plate is provided on the inner side of the tail of the guide rail to limit the position of the battery pack on the guide rail assembly, so that the battery pack is placed in the center of the guide rail assembly.

[0008] Furthermore, the limiting plate is fixed to the inner side of the guide rail tail by countersunk rivet nuts; the limiting plate is made of PC material, the front end of the limiting plate is provided with a beveled guide structure, and a gap of 0.2-1mm is reserved between the limiting plate and the battery pack.

[0009] Furthermore, the bottom of the column is welded to the bottom beam inside the energy storage container, and the top of the column is welded to the top beam inside the energy storage container.

[0010] Furthermore, the guide rail and the column are fixedly connected by high-strength bolts or by welding.

[0011] Furthermore, the transverse connecting plate is fixedly connected to the tail of the guide rail by high-strength bolts.

[0012] This invention also provides an energy storage container, including an energy storage container body and the aforementioned energy storage container battery fixing structure; a columnar through hole is provided on the rear side wall of the energy storage container body at a position corresponding to the tail of the battery rack guide rail, and the columnar through hole corresponds one-to-one with the waist-shaped through hole at the tail of the guide rail; after the bolt passes through the columnar through hole and the waist-shaped through hole in sequence, it cooperates with the fixing nut on the battery pack to fix the battery pack, the energy storage container battery fixing structure and the energy storage container body into a whole; a waterproof plug is provided at the columnar through hole, and the waterproof plug is threadedly connected to the columnar through hole to achieve sealing and waterproofing of the columnar through hole.

[0013] Furthermore, the waterproof plug includes a plug body, a sealing gasket, and an operating part; the outer periphery of the plug body is provided with external threads, and the inner wall of the cylindrical through hole is provided with internal threads that match the external threads; the sealing gasket is an annular structure and is fitted onto the plug body, so that when the waterproof plug is tightened onto the cylindrical through hole, the sealing gasket fits tightly against the outer wall of the energy storage container; the operating part is integrally formed at one end of the plug body.

[0014] Furthermore, the operating part is a hexagonal prism structure or a cylindrical structure with anti-slip texture, used to tighten or loosen the waterproof plug by means of tools or by hand.

[0015] Furthermore, buffer pads are provided on the rear side wall of the energy storage container, the tail end of the battery pack, and the contact area between the battery fixing structure of the energy storage container. The buffer pads are made of rubber.

[0016] According to specific embodiments provided by the present invention, the energy storage container battery fixing structure and energy storage container provided by the present invention disclose the following technical effects: 1. High fixing strength and good stability: The guide rail has a waist-shaped through hole at the end, through which the battery pack and battery rack can be fixed by bolts. At the same time, the rear side wall of the container body has column through holes corresponding to the waist-shaped through holes at the end of the guide rail. Bolts are passed through the column through holes and waist-shaped through holes in sequence to cooperate with the nuts on the battery pack, fixing the battery pack, battery rack and container body together. The fixing strength is high, effectively preventing the battery pack from shifting and improving the stability of the overall structure. Moreover, the tail fixing method does not require the reserved operation space at the end of the battery rack, which can reduce the distance between the battery rack and the container body and improve the space utilization of the container.

[0017] 2. Precise positioning and excellent shock resistance: The limiting structures on the left and right sides of the rear of the battery rack guide rail can effectively limit the left and right sides of the battery pack, preventing the battery pack from shifting left and right in the horizontal direction, further improving the stability of the battery pack installation. At the same time, the battery rack guide rail is equipped with a buffer pad, which further optimizes the structural performance, taking into account the requirements of lightweight and vibration resistance, and is especially suitable for scenarios such as bumps and vibrations that may be encountered during container transportation.

[0018] 3. Reliable sealing and convenient maintenance: The through holes of the column on the rear side wall of the container are sealed by a threaded connection with a waterproof plug. The threaded connection provides a reliable seal and can effectively prevent external rainwater and moisture from seeping into the container, protecting the electrical performance of the battery pack and extending its service life. At the same time, the threaded waterproof plug is easy to install and remove, facilitating the maintenance and replacement of the battery pack in the future. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a three-dimensional structural diagram of the battery fixing structure of the energy storage container of the present invention; Figure 2This is a schematic diagram of the assembly structure of the battery pack, battery rack, and container of the present invention; Figure 3 This is a partially enlarged schematic diagram of the rear of the battery rack guide rail assembly of the present invention. Figure 1 (at point A in the middle) Figure 4 This is an enlarged schematic diagram of a partial connection structure between the rear of the battery pack and the guide rail and container body of the present invention. Figure 2 (Center B) Figure 5 This is a partially enlarged schematic diagram of the front-end fixing structure of the battery pack of the present invention. Figure 2 (Center C) Figure 6 This is a schematic diagram of the waterproof sealant structure of the present invention; Explanation of reference numerals in the attached drawings: 11-Column, 12-Guide rail assembly, 121-Limiting plate, 122-Oval through hole, 13-Transverse connecting plate, 21-Battery pack, 211-Battery pack nut, 31-Container body, 311-Column through hole, 41-High-strength bolt, 51-Waterproof plug, 511-Plug body, 512-Sealing gasket, 513-Operating part, 61-Buffer pad, 71-Fixing plate. Detailed Implementation

[0021] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0022] In this patent description, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," "center," "longitudinal," "lateral," "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.

[0023] The purpose of this invention is to provide a battery fixing structure for an energy storage container and an energy storage container. The structure is simple and the design is reasonable, which can firmly fix the battery pack and effectively prevent the battery pack from shifting during transportation.

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Example 1 like Figures 1-6 As shown, the energy storage container battery fixing structure provided by the present invention includes multiple columns 11 and multiple guide rail groups 12; the columns 11 are used to connect with the energy storage container body, and the multiple columns 11 are arranged in sequence to form multiple parallel columns. Each guide rail group 12 includes two guide rails, which are respectively connected to the columns 11 of two adjacent columns. The two guide rails of each guide rail group 12 are respectively located on the corresponding sides of the columns 11 of two adjacent columns. Multiple guide rail groups 12 are arranged sequentially along the height direction of the columns. The guide rail group 12 is used to place the battery pack 21. The guide rail is composed of an L-shaped plate formed by a base plate and a vertical plate and a tail inner limiting plate 121. The front end of the guide rail is provided with a downward bending part, and a welding nut is arranged on the bending part for fixing the front end of the battery pack 21 to the guide rail by bolts; the front end of the battery rack is fixed to the battery pack 21 by high-strength bolts through the fixing plate 71. The guide rail has an inwardly bent section 2 at its tail end, and the bent section 2 has an oblong through hole 122 for fixing the battery rack to the energy storage container body with bolts; wherein, the size of the oblong through hole 122 is compatible with the errors in various directions during the installation of the battery pack 21, so as to avoid the high-strength bolt 41 being unable to connect the tail end of the battery pack 21 to the guide rail due to hole position deviation.

[0026] The tail ends of the two guide rails in the same guide rail assembly 12 are connected as one unit by a transverse connecting plate 13. For example... Figure 3 As shown, the transverse connecting plate 13 is fixedly connected to the tail of the guide rail by high-strength bolts, so that the two guide rails on the guide rail assembly are connected as one unit. Multiple sets of transverse connecting plates 13 are also provided, corresponding one-to-one with the number of guide rail assemblies.

[0027] The inner side of the guide rail tail is provided with a limiting plate 121, which is used to limit the position of the battery pack 21 on the guide rail assembly 12, so that the battery pack 21 is placed in the center of the guide rail assembly 12.

[0028] The limiting plate 121 is fixed to the inner side of the guide rail tail by a countersunk rivet nut. The limiting plate 121 is made of PC material, and the front end of the limiting plate 121 is provided with a beveled guide structure. A gap of 0.2-1mm is reserved between the limiting plate 121 and the battery pack 21, which can greatly correct the left and right errors between the rear end and the guide rail after the battery pack is installed in place, relative to the 4-5mm gap at the front end of the battery pack. The beveled guide structure at the limiting plate 121 has a guiding function when the battery pack 21 is inserted. Due to the characteristics of PC material, it plays a protective role when the battery pack 21 comes into contact with the limiting plate 121, preventing the battery pack 21 from being bumped or scratched due to friction.

[0029] The bottom of the column 11 is welded to the bottom beam inside the energy storage container, and the top of the column 11 is welded to the top beam inside the energy storage container.

[0030] The guide rail and the column 11 are fixedly connected by high-strength bolts or by welding.

[0031] The spacing between the columns and the spacing between adjacent guide rail groups 12 are set according to factors such as the capacity of the energy storage container and the size of the battery pack.

[0032] Example 2 This invention also provides an energy storage container, including an energy storage container body 31 and the aforementioned energy storage container battery fixing structure; a column through hole 311 is provided on the rear side wall of the energy storage container body 31 at a position corresponding to the tail of the battery rack guide rail, and the column through hole 311 corresponds one-to-one with the waist-shaped through hole 122 at the tail of the guide rail, which facilitates the installation of high-strength bolts on the outside of the container, solving the problem that bolts cannot be installed inside the container due to space limitations; after the bolt passes through the column through hole and the waist-shaped through hole 122 in sequence, it cooperates with the fixing nut 211 on the battery pack 21 to fix the battery pack 21, the energy storage container battery fixing structure and the energy storage container body into one unit; a waterproof plug 51 is provided at the column through hole 311, and the waterproof plug 51 is threadedly connected to the column through hole 311 to achieve sealing and waterproofing of the column through hole 311.

[0033] like Figure 6As shown, the waterproof plug 51 includes a plug body 511, a sealing gasket 512, and an operating part 513. The plug body 511 has an external thread on its outer periphery, and the inner wall of the cylindrical through hole 311 has an internal thread that matches the external thread. The sealing gasket 512 is an annular structure and is fitted onto the plug body 511. When the waterproof plug 51 is tightened onto the cylindrical through hole 311, the sealing gasket 512 fits tightly against the outer wall of the energy storage container body 31, further improving the waterproof sealing effect. The operating part 513 is integrally formed at one end of the plug body 511. The operating part 513 is a hexagonal prism structure or a cylindrical structure with anti-slip texture, used to tighten or loosen the waterproof plug 51 by tools or manually.

[0034] The waterproof plug 51 is made of aging-resistant EPDM rubber.

[0035] The rear side wall of the energy storage container body 31, the tail end of the battery pack 21, and the contact parts with the battery fixing structure of the energy storage container are all provided with buffer pads 61. The buffer pads are made of rubber and are glued to the front and rear surfaces of the second bend at the tail end of the battery rack guide rail. They are used to absorb vibration energy, reduce vibration transmission between the battery rack and the container body and between the battery packs, and protect the battery pack 21 from vibration damage.

[0036] When installing the battery pack 21, first place the battery pack 21 on the guide rail assembly 12 and correct its position using the limiting plate 121; then use bolts to pass through the welded nuts at the front bend of the guide rail and fix the front end of the battery pack 21 with the fixing plate 71; finally, from the outside of the container body 31, pass the high-strength bolts 41 through the column through hole 311 and the waist-shaped through hole 122 at the rear of the guide rail in sequence, and cooperate with the battery pack nut 211 at the rear of the battery pack 21 to achieve integrated fixing of the battery pack 21, the battery frame and the container body 31.

[0037] This document uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, 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 the present invention.

Claims

1. A battery fixing structure for an energy storage container, characterized in that, It includes multiple columns (11) and multiple guide rail groups (12); the columns (11) are used to connect with the energy storage container body, and the multiple columns (11) are arranged in sequence to form multiple parallel columns; Each of the guide rail groups (12) includes two guide rails, which are respectively connected to the columns (11) of two adjacent columns and correspond to each other. Multiple guide rail groups (12) are arranged sequentially along the height direction of the column rows for placing battery packs (21). The guide rail is an L-shaped plate; the front end of the guide rail is provided with a downward bending part one, and a welding nut is arranged on the bending part one for fixing the front end of the battery pack (21) on the guide rail by bolts; the rear end of the guide rail is provided with an inward bending part two, and the bending part two is provided with a waist-shaped through hole (122) for fixing the battery rack and the energy storage container body by bolts; the rear ends of the two guide rails of the same guide rail group (12) are connected as one unit by a transverse connecting plate (13).

2. The energy storage container battery fixing structure according to claim 1, characterized in that, The inner side of the guide rail tail is provided with a limiting plate (121) to limit the position of the battery pack (21) on the guide rail group (12) so that the battery pack (21) is placed in the center of the guide rail group (12).

3. The energy storage container battery fixing structure according to claim 2, characterized in that, The limiting plate (121) is fixed to the inner side of the tail of the guide rail by countersunk rivet nuts; the limiting plate (121) is made of PC material, and the front end of the limiting plate (121) is provided with a sloping guide structure, and a gap of 0.2-1mm is reserved between the limiting plate (121) and the battery pack (21).

4. The energy storage container battery fixing structure according to claim 1, characterized in that, The bottom of the column (11) is welded to the bottom beam inside the energy storage container, and the top of the column (11) is welded to the top beam inside the energy storage container.

5. The energy storage container battery fixing structure according to claim 1, characterized in that, The guide rail and the column (11) are fixedly connected by high-strength bolts or by welding.

6. The energy storage container battery fixing structure according to claim 1, characterized in that, The transverse connecting plate (13) is fixedly connected to the tail of the guide rail by high-strength bolts.

7. An energy storage container, characterized in that, The device includes an energy storage container body (31) and an energy storage container battery fixing structure as described in any one of claims 1-6; a column through hole (311) is provided on the rear side wall of the energy storage container body (31) at a position corresponding to the tail of the battery rack guide rail, and the column through hole (311) corresponds one-to-one with the waist-shaped through hole (122) at the tail of the guide rail; after the bolt passes through the column through hole and the waist-shaped through hole (122) in sequence, it cooperates with the fixing nut (211) on the battery pack (21) to fix the battery pack (21), the energy storage container battery fixing structure and the energy storage container body into one unit; a waterproof plug (51) is provided at the column through hole (311), and the waterproof plug (51) is threadedly connected to the column through hole (311) to achieve sealing and waterproofing of the column through hole (311).

8. The energy storage container according to claim 7, characterized in that, The waterproof plug (51) includes a plug body (511), a sealing gasket (512), and an operating part (513). The plug body (511) has an external thread on its outer periphery, and the inner wall of the cylindrical through hole (311) has an internal thread that matches the external thread. The sealing gasket (512) is an annular structure and is fitted onto the plug body (511). When the waterproof plug (51) is tightened onto the cylindrical through hole (311), the sealing gasket (512) fits tightly against the outer wall of the energy storage container body (31). The operating part (513) is integrally formed on one end of the plug body (511).

9. The energy storage container according to claim 8, characterized in that, The operating part (513) is a hexagonal prism structure or a cylindrical structure with anti-slip texture, used to tighten or loosen the waterproof plug (51) by means of tools or by hand.

10. The energy storage container according to claim 7, characterized in that, The rear side wall of the energy storage container body (31), the tail end of the battery pack (21) and the contact parts of the energy storage container battery fixing structure are all provided with buffer pads (61), which are made of rubber.

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