Vibration test tool suitable for energy storage battery

Abstract

The invention discloses a vibration test tool suitable for an energy storage battery, and the tool comprises an outer frame and a battery rack, and the battery rack is used for placing a high-voltage box, a battery pack or a battery pack counterweight for simulating the battery pack. The battery pack balance weight comprises a bottom plate, a cover plate, shock-proof structures and a connecting structure, the bottom plate and the cover plate are assembled through connecting bolts, the connecting structure is used for assembling the battery pack balance weight on a battery rack, and the shock-proof structures are arranged on the two sides of the bottom plate at intervals. According to the invention, the battery pack is simulated through the battery pack counterweight, the cost is low, the stand columns are connected in a detachable manner, and by replacing stand columns with different sizes, different numbers or different positions, the device can be compatible with a variety of test platforms, can be reused, and reduces the cost.

Description

Technical Field

[0001] The invention relates to a vibration test tool suitable for an energy storage battery, belonging to the technical field of energy storage systems. Background Art

[0002] As heavy, specialized equipment, energy storage battery compartments are inevitably subject to transport vibration. The battery racks within the compartments, which support the battery packs, must possess sufficient strength to withstand transport vibration and protect the battery packs. As specified in the "GB / T 44026-2024 Technical Specification for Prefabricated Lithium-ion Battery Energy Storage Systems," battery racks within prefabricated compartments must have reliable connections and buffer limits with battery cells or modules to meet transport vibration requirements.

[0003] To ensure that the energy storage battery rack meets transportation vibration requirements, vibration testing of its prototype is required during the R&D and design phase. During the test, the test sample needs to be securely fixed to the vibration test bench using a fixture.

[0004] In the past, the following problems often occurred during the implementation of vibration tests on energy storage battery racks: A single energy storage battery rack is a slender structure that cannot withstand the vibration of the test bench, and it is difficult to be equivalent to the vibration conditions in the energy storage battery compartment.

[0005] The energy storage battery rack can only verify one structure and lacks flexibility and compatibility.

[0006] The battery packs used for testing are dangerous and expensive, and the testing costs are high.

[0007] Therefore, the above-mentioned test tooling cannot meet the R&D and design needs of the energy storage industry. Summary of the Invention

[0008] The purpose of the present invention is to overcome the problems of the existing technology that it lacks flexibility and compatibility, and to provide a vibration test tool suitable for energy storage batteries; In order to achieve the above objectives / solve the above technical problems, the present invention is implemented by adopting the following technical solutions: A vibration test fixture suitable for energy storage batteries, the fixture comprising an outer frame and a battery rack, the battery rack being used to place a high-voltage box, a battery pack, or a battery pack counterweight simulating a battery pack; The battery pack counterweight includes a base plate, a cover plate, a shock-absorbing structure and a connecting structure. The base plate and the cover plate are assembled by connecting bolts. The connecting structure is used to assemble the battery pack counterweight on the battery rack. The shock-absorbing structures are spaced apart on both sides of the base plate.

[0009] Optionally, the outer frame is welded together by a bottom frame, an intermediate frame and a top frame, the intermediate frame is arranged at the four corners of the bottom frame, and the top frame is connected to the top of the intermediate frame.

[0010] Optionally, the bottom frame includes a bottom cross beam, a bottom longitudinal beam, a bottom cross beam, a bottom longitudinal beam and a bottom reinforcement rib, the bottom cross beam and the bottom longitudinal beam are welded to form four sides of the bottom frame by H-shaped steel, and a row of through holes is opened on the outer side of the lower flange of the bottom cross beam and the bottom longitudinal beam for connecting with the mounting holes on the vibration test bench; The bottom reinforcement ribs are welded to the bottom cross beam and the outer side of the web of the bottom cross beam.

[0011] Optionally, the middle frame includes triangular reinforcement ribs, columns and diagonal braces, the columns are located at the four corners of the outer frame, the diagonal braces are located on the left, right and rear sides of the outer frame, and are used to connect the bottom frame and the top frame, and the triangular reinforcement ribs connect the columns and the bottom frame and the top frame.

[0012] Optionally, forklift holes are opened on the bottom longitudinal beam and the bottom longitudinal beam for transporting the vibration test tooling.

[0013] Optionally, the battery rack includes a column, a guide rail, a front limiter and a high-voltage box base; The columns are welded to the bottom longitudinal beams, and the guide rails are connected to the columns; the guide rails are used to carry the battery pack, and the front limiter is used to fix the battery pack on the guide rails.

[0014] The high-voltage box base is welded on the column and is used to support the high-voltage box.

[0015] Optionally, the guide rail and the column are detachably connected.

[0016] Optionally, the top frame includes a top cross beam, a top longitudinal beam, a top longitudinal beam and a corner piece, and the top cross beam and the top longitudinal beam are connected with the corner piece to form the four sides of the top frame.

[0017] Optionally, the shock-absorbing structure is made of elastic material.

[0018] Compared with the prior art, the present invention has the following beneficial effects: The present invention simulates the battery pack by using the battery pack counterweight, which has the advantage of low cost; The columns of the present invention are connected in a detachable manner. By replacing columns of different sizes, different numbers or different positions, it can be compatible with various test platforms, can be reused, and reduce costs; The vibration test fixture of the present invention has a stable and reliable structure, and the battery pack counterweight pack is provided with a shock-absorbing structure to improve the test stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 A schematic diagram of the structure of the vibration test tooling provided in this embodiment; Figure 2 A schematic structural diagram of the outer frame provided in this embodiment; Figure 3 A main view of the outer frame provided for this embodiment; Figure 4 A schematic diagram of the structure of the battery rack provided in this embodiment; Figure 5 This is a schematic diagram of the structure of the battery pack counterweight provided in this embodiment. DETAILED DESCRIPTION

[0020] In order to make the technical means, creative features, objectives and effects achieved by the present invention easier to understand, the present invention is further described below in conjunction with specific implementation methods.

[0021] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present invention, unless otherwise specified, "multiple" means two or more.

[0022] In the description of the present invention, it should be noted that, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0023] like Figure 1 As shown, a vibration test fixture consists of an outer frame 1 and a battery rack 2 , and a battery pack 3 or a battery pack configuration 5 simulating a battery pack 3 and a high-voltage box 4 are installed in the battery rack 2 .

[0024] like Figure 2-Figure 3As shown, the outer frame 1 is welded together by a bottom frame 11, an intermediate frame 12, and a top frame 13. The bottom frame 11 includes a bottom crossbeam 111, a bottom longitudinal beam 112, a bottom crossbeam 113, a bottom longitudinal beam 114, and a bottom reinforcing rib 115. The intermediate frame 12 includes a triangular reinforcing rib 121, a column 122, and a diagonal brace 123. The top frame 13 includes a top crossbeam 131, a top longitudinal beam 132, a top longitudinal beam 133, and corner fittings 134.

[0025] The bottom crossbeam 111 and the bottom longitudinal beam 112 are made of H-shaped steel and welded to form the four sides of the bottom frame 11. A row of through holes is opened on the outer side of the lower flange of the bottom crossbeam 111 and the bottom longitudinal beam 112 for connection with the mounting holes on the vibration test bench. The bottom reinforcement rib 115 is welded to the outer side of the web of the bottom crossbeam 111 and the bottom crossbeam 112. The bottom crossbeam 113 and the bottom longitudinal beam 114 are made of rectangular tubes, and the column 21 of the battery rack 2 is welded to the upper side of the bottom longitudinal beam 114. Forklift holes are opened on the bottom longitudinal beam 112 and the bottom longitudinal beam 114 for the transportation of vibration test tooling.

[0026] Both the uprights 122 and diagonal braces 123 are made of rectangular tubing. The uprights 21 are located at the four corners of the outer frame 1. The diagonal braces 123 are located on the left, right, and rear sides of the outer frame, connecting the bottom frame 11 and the top frame 13 and increasing the outer frame's strength. Triangular reinforcing ribs 121 connect the uprights 122 to the bottom frame 11 and the top frame 13.

[0027] The top crossbeam 131, top longitudinal beam 132, and top longitudinal beam 133 are all made of rectangular tubes. The top crossbeam 131 and top longitudinal beam 132 are connected to the corner pieces 134, forming the four sides of the top frame 13. The columns 21 of the battery rack 2 are welded to the underside of the top longitudinal beam 133.

[0028] like Figure 4 As shown, the battery rack 2 includes columns 21, guide rails 22, front stoppers 23, and a high-voltage box base 24. Columns 21 are welded to the outer frame, and guide rails 22 are connected to the columns 21. Front stoppers 23 and guide rails 22 are used in pairs. Guide rails 22 support the battery pack 3, and front stoppers 23 secure the battery pack to the guide rails 22. The high-voltage box base 24 is welded to the columns 21 and supports the high-voltage box 4.

[0029] In the specific implementation process of this embodiment, the connection between the guide rail 22 and the column 21 can be welding, riveting or bolting. The guide rail 22 can also be designed into various structures or sizes for simultaneous vibration testing, which is convenient for selection and optimization.

[0030] During the specific implementation of this embodiment, the vibration test tool can be modified after the test is completed. The columns 21 can be cut off and re-welded with columns of different sizes, different numbers or different positions, so as to achieve the reuse of the vibration test tool and save test costs.

[0031] like Figure 5 As shown, the embodiment of the present invention simulates the battery pack 3 through the battery pack counterweight 5. The battery pack counterweight 5 is used to replace the battery pack for vibration testing. Its weight and bottom area are the same as those of the battery pack, and the connection structure and shock-absorbing structure of the battery pack are retained. The battery pack counterweight 5 is composed of a base plate 51, a cover plate 52, connecting bolts 53, a shock-absorbing structure 54 and a connecting structure 55. Both the base plate 51 and the cover plate 52 have threaded holes for lifting. The shock-absorbing structures 54 on both sides of the base plate 51 are made of elastic material, which can effectively reduce the vibration of the battery pack. Other materials are made of cheap steel to reduce costs. Since the strength of the iron block is very high, it can usually withstand the vibration required by the standard and can therefore be reused.

[0032] In summary, the present invention provides a vibration test fixture suitable for energy storage batteries, which has the advantages of stable and reliable structure, strong compatibility, etc. The battery pack counterweight has the advantages of low cost and reusability.

[0033] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A vibration test tool suitable for energy storage batteries, characterized in that: The tooling comprises an outer frame (1) and a battery rack (2), wherein the battery rack (2) is used to place a high-voltage box (4), a battery pack (3) or a battery pack counterweight (5) simulating a battery pack (3); The battery pack counterweight (5) comprises a base plate (51), a cover plate (52), a shock-absorbing structure (54) and a connecting structure (55); the base plate (51) and the cover plate (52) are assembled via connecting bolts (53); the connecting structure (55) is used to assemble the battery pack counterweight (5) on the battery rack (2); and the shock-absorbing structure (54) is spaced apart on both sides of the base plate (51).

2. The vibration test fixture for energy storage batteries according to claim 1, characterized in that: The outer frame (1) is welded together by a bottom frame (11), an intermediate frame (12), and a top frame (13); the intermediate frame (12) is arranged at the four corners of the bottom frame (11); and the top frame (13) is connected to the top of the intermediate frame (12).

3. The vibration test fixture for energy storage batteries according to claim 2, characterized in that: The bottom frame (11) includes a bottom crossbeam (111), a bottom longitudinal beam (112), a bottom crossbeam (113), a bottom longitudinal beam (114) and a bottom reinforcing rib (115), the bottom crossbeam (111) and the bottom longitudinal beam (112) being welded together to form four sides of the bottom frame (11) by means of H-shaped steel, and a row of through holes is formed on the outer sides of the lower flanges of the bottom crossbeam (111) and the bottom longitudinal beam (112) for connecting with mounting holes on the vibration test bench; The bottom reinforcing ribs (115) are welded to the outer sides of the webs of the bottom cross beam (111) and the bottom cross beam (112).

4. The vibration test fixture for energy storage batteries according to claim 2, characterized in that: The intermediate frame (12) comprises triangular reinforcing ribs (121), columns (122) and diagonal braces (123), wherein the columns (122) are located at the four corners of the outer frame (1), and the diagonal braces (123) are located on the left side, right side and rear side of the outer frame (1) and are used to connect the bottom frame (11) and the top frame (13). The triangular reinforcing ribs (121) connect the columns (122) and the bottom frame (11) and the top frame (13).

5. The vibration test fixture for energy storage batteries according to claim 3, characterized in that: Forklift holes are provided on the bottom longitudinal beam (112) and the bottom longitudinal beam (114) for transporting the vibration test tooling.

6. The vibration test fixture for energy storage batteries according to claim 3, characterized in that: The battery rack (2) includes a column (21), a guide rail (22), a front limiter (23) and a high-voltage box base (24); The column (21) is welded to the bottom longitudinal beam (114), and the guide rail (22) is connected to the column (21); the guide rail (22) is used to carry the battery pack (3), and the front limiter (23) is used to fix the battery pack on the guide rail (22); the high-voltage box base (24) is welded to the column (21) and is used to carry the high-voltage box (4).

7. The vibration test fixture for energy storage batteries according to claim 6, characterized in that: The guide rail (22) and the column (21) are detachably connected.

8. The vibration test fixture for energy storage batteries according to claim 2, characterized in that: The top frame (13) comprises a top crossbeam (131), a top longitudinal beam (132), a top longitudinal beam (133) and a corner piece (134). The top crossbeam (131) and the top longitudinal beam (132) are connected with the corner piece (134) to form four sides of the top frame (13).

9. The vibration test fixture for energy storage batteries according to claim 1, characterized in that: The shock-absorbing structure (54) is made of elastic material.

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