Battery pack vibration test tooling

Abstract

The utility model relates to battery package test technical field discloses a kind of battery package vibration test tool, for connecting battery package and vibration platform, the tool includes multiple parallel arrangement and independently detachable support assembly.Each support assembly includes installation flat plate, support block and bottom support. The top surface of installation flat plate is equipped with first installation part, for detachably connecting battery package;Support block top is connected with the bottom surface of installation flat plate by first fastener;Bottom support top is connected with the bottom of support block by second fastener, and second installation part is equipped on bottom support, for detachably connecting vibration platform. The number of support assembly can be flexibly configured according to the size of battery package. The modular tool guarantees high-precision fitting between components through detachable connection, improves vibration transmission accuracy and reliability, and can be widely adapted to battery packages of different sizes, with the advantages of strong universality and high testing efficiency.

Description

Technical Field

[0001] This utility model relates to the field of battery pack testing technology, and in particular to a battery pack vibration testing fixture. Background Technology

[0002] Against the backdrop of the rapid development of the new energy vehicle industry, the widespread adoption of electric vehicles has brought about an increasing prominence of battery pack safety issues. As a core component, insufficient structural strength in the battery pack can lead to failure during use, thereby causing safety accidents. Therefore, battery manufacturers must conduct structural strength tests on battery packs before releasing their products to the market, with vibration testing being a crucial step to simulate dynamic loads in real-world usage environments. The vibration testing fixture, serving as the hub connecting the battery pack and the vibration platform, directly impacts the accuracy and reliability of the test results.

[0003] In existing technologies, vibration fixtures are typically assembled using fixed connection methods such as welding, for example, integrating the mounting plate, support block, and base into a single unit. While this process provides a certain structural strength, it is prone to welding deformation, resulting in insufficient fit between the fixture and the mounting surface of the battery pack or vibration platform, affecting testing accuracy. More significantly, in actual installation operations, due to defects in the fixture's structural layout, the fixing holes at the bottom of the battery pack are often obscured by the fixture body when locking the battery pack to the fixture, preventing operators from directly observing the alignment and greatly increasing installation difficulty. Simultaneously, the narrow operating space makes it difficult to use tools such as wrenches, further reducing installation efficiency and potentially leading to thread damage or insufficient tightening torque due to blind operation.

[0004] On the other hand, existing vibration fixtures suffer from poor versatility and rigid structures, typically designed for specific battery pack sizes and unable to flexibly adapt to products of different specifications. When testing different battery pack models, it is necessary to replace or customize dedicated fixtures, which not only increases equipment costs but also introduces the inconvenience of frequent disassembly and assembly. Operators often need to use specialized tools and apply significant external force during disassembly and assembly, easily leading to damage to the fixture or battery pack. Furthermore, welded fixtures lack modular design, making reassembly or adjustment difficult after disassembly, limiting their maintenance and reuse efficiency. These problems not only reduce testing efficiency but also increase costs, highlighting the shortcomings of existing technologies in terms of high strength, convenience, and versatility. Utility Model Content

[0005] In view of this, the present invention proposes a battery pack vibration testing fixture to solve the problems of cumbersome disassembly and assembly and poor versatility of existing vibration fixtures.

[0006] The technical solution of this utility model is implemented as follows: This utility model provides a battery pack vibration testing fixture for connecting a battery pack to a vibration platform, comprising multiple parallel and independently detachable support components, wherein the support components include: The mounting plate has a first mounting portion on its top surface for detachable connection with the battery pack; The top of the support block is detachably connected to the bottom surface of the mounting plate via a first fastener; The base has its top detachably connected to the bottom of the support block via a second fastener, and the base is provided with a second mounting part for detachably connecting to the vibration platform; The number of multiple support components can be configured according to the size of the battery pack.

[0007] Based on the above technical solution, preferably, the first mounting part is an oblong hole, which is located on the top surface of the mounting plate and penetrates the mounting plate, and is used to lock and connect with the fixing hole on the bottom surface of the battery pack by locking bolts.

[0008] Based on the above technical solution, preferably, the first mounting part is provided with multiple parts at equal intervals along the length direction of the mounting plate.

[0009] Based on the above technical solution, preferably, the mounting plate has two limiting surfaces arranged opposite to each other, the distance between the two limiting surfaces is used to limit the width direction of the battery pack, and the extension direction of the limiting surfaces is parallel to the length direction of the waist-shaped hole.

[0010] Based on the above technical solution, preferably, the support block is provided in two rows, the two rows of support blocks extend along the length direction of the mounting plate and are arranged symmetrically with respect to the waist-shaped hole.

[0011] Based on the above technical solution, preferably, the support block is an I-shaped structure, including a support beam and an upper crossbeam and a lower crossbeam respectively fixed to the upper and lower ends of the support beam; the two ends of the upper crossbeam are respectively provided with a first mounting hole, and the bottom surface of the mounting plate is provided with a first bolt hole corresponding to the position of the first mounting hole, and the first fastener passes through the first mounting hole and the first bolt hole to detachably fix the support block and the mounting plate.

[0012] Based on the above technical solution, preferably, the lower crossbeam is provided with second mounting holes at both ends, and the top surface of the base is provided with second bolt holes corresponding to the second mounting holes. The second fastener passes through the second mounting holes and the second bolt holes to detachably fix the support block and the mounting base.

[0013] Based on the above technical solution, preferably, the second mounting part is an array of mounting holes arranged on the surface of the base, and the vibration platform is provided with an array of third bolt holes, the spacing of the third bolt holes matching the spacing of the mounting holes.

[0014] Based on the above technical solution, preferably, the mounting plate is provided with at least one weight reduction groove.

[0015] Based on the above technical solution, preferably, the first fastener and the second fastener are anti-loosening bolts.

[0016] The present invention has the following advantages over the prior art: (1) The vibration test fixture is composed of modular and independently detachable support components. The fixture not only ensures high-precision fit between the components through detachable connection, thereby improving the transmission accuracy and reliability of vibration test, but also achieves wide compatibility with a series of battery packs of different sizes through flexible configuration of the number of support components. This significantly improves the versatility and testing efficiency of the fixture, while reducing the risk of test failure due to mismatch or poor fit of the fixture.

[0017] (2) By setting the first mounting part as a waist-shaped hole that penetrates the top surface, the fault tolerance and convenience of the battery pack installation process are significantly improved while maintaining the reliability of the detachable connection. This effectively compensates for manufacturing and positioning errors, reduces the difficulty of alignment, and thus substantially improves the assembly efficiency of the entire vibration test fixture.

[0018] (3) By adopting a double-row support block layout that extends along the length of the mounting plate and is symmetrically arranged relative to the waist-shaped hole, a balanced and stable symmetrical support frame is constructed, which significantly enhances the overall structural strength and rigidity of the tooling, optimizes the transmission path of vibration load, and ensures that the battery pack can obtain symmetrical support in any installation position, thereby fundamentally improving the reliability and accuracy of vibration testing.

[0019] (4) By adopting the support block with I-shaped structure and its specific screw connection with the mounting plate, the structure is lightweight while providing the mounting plate with extremely high bending support stiffness, ensuring the stability of vibration load transmission; on the other hand, the two-point bolt connection realizes a reliable connection with the mounting plate that is high-precision, high-rigidity and can be repeatedly disassembled and assembled. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the assembly structure of the battery pack and support components disclosed in an embodiment of the present utility model; Figure 2 This is a three-dimensional structural diagram of the battery pack and vibration testing fixture after assembly, as disclosed in an embodiment of this utility model. Figure 3 This is a three-dimensional structural diagram of the battery pack disclosed in an embodiment of the present utility model; Figure 4 This is a three-dimensional structural diagram of the support component disclosed in an embodiment of the present utility model; Figure 5 This is a three-dimensional structural diagram of the mounting plate disclosed in an embodiment of the present utility model; Figure 6 This is a three-dimensional structural diagram of the support block disclosed in an embodiment of the present utility model; Figure 7 This is a three-dimensional structural diagram of the base disclosed in an embodiment of the present utility model; Figure label: 1. Battery pack; 11. Fixing hole; 2. Vibration platform; 3. Support assembly; 31. Mounting plate; 311. First mounting part; 32. Support block; 33. First fastener; 34. Base support; 35. Second fastener; 341. Second mounting part; 36. Locking bolt; 312. Limiting surface; 321. Support beam; 322. Upper crossbeam; 323. Lower crossbeam; 3221. First mounting hole; 313. First bolt hole; 3231. Second mounting hole; 342. Second bolt hole; 21. Third bolt hole; 314. Weight reduction groove. Detailed Implementation

[0022] The technical solutions of this utility model will be clearly and completely described below with reference to the embodiments of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. Based on the embodiments of this utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of this utility model.

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0024] In the description of the embodiments of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of this utility model based on the specific circumstances.

[0025] In the description of the embodiments of this utility model, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 embodiments of this utility model 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 embodiments of this utility model.

[0026] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0028] The following disclosure provides numerous different embodiments or examples for implementing various structures of the present invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the scope of the invention. Furthermore, reference numerals and letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and the use of other materials.

[0029] like Figure 1 As shown, combined with Figure 2-7 As shown in the figure, this utility model discloses a battery pack vibration testing fixture, which consists of multiple parallel and independently detachable support components 3 forming a basic unit. In application, this fixture is located between the battery pack 1 and the vibration platform 2, serving as a crucial connection and force transmission hub. Each support component 3 acts as a complete force-bearing unit, independently bearing the load from the battery pack 1 and transmitting it to the vibration platform 2.

[0030] The mounting plate 31 in the support assembly 3 is a key component that directly supports the battery pack 1. Its top surface is specially provided with a first mounting part 311, a design that allows the battery pack 1 to be stably placed on the tooling with its bottom surface in contact. The first mounting part 311 serves as a standardized connection interface, providing a foundation for a reliable and repeatedly detachable mechanical connection between the battery pack 1 and the tooling. This top-surface connection method is direct and efficient, avoiding complex force transmission paths.

[0031] To ensure that the mounting plate 31 has sufficient supporting rigidity and remains stable under load, the support block 32 is detachably connected to the bottom surface of the mounting plate 31 via the first fastener 33. This detachable connection, rather than welding, fundamentally eliminates the unevenness of the top surface of the mounting plate 31 that could be caused by welding thermal deformation, thus ensuring the initial fit accuracy of the battery pack 1 mounting surface. The support block 32 plays a crucial role in force transmission and reinforcement, converting the bending load borne by the mounting plate 31 into pressure that is transmitted to the base support 34.

[0032] The base support 34 serves as the interface between the support assembly 3 and the vibration platform 2. Its top is detachably connected to the bottom of the support block 32 via a second fastener 35. This connection method also ensures the flatness of the bottom surface of the base support 34, allowing it to fully fit the mounting surface of the vibration platform 2. The second mounting part 341 provided on the base support 34 offers flexibility in connecting the entire fixture to the vibration platform 2, enabling it to adapt to different bolt hole arrangements on the vibration platform 2.

[0033] The fixture in this embodiment is composed of multiple aforementioned support components 3 arranged in parallel. Each support component 3 is structurally independent but functionally collaborative. By flexibly configuring the number of support components 3 according to the actual size and weight of the battery pack 1 under test, it is possible to adapt to battery packs of different specifications. For example, for a smaller battery pack 1, only two support components 3 may be needed to provide stable support; while for a larger battery pack 1, the number of support components 3 can be increased to meet its requirements for support stiffness and connection points. This modular and variable-quantity configuration is the core of the fixture's versatility.

[0034] The vibration test fixture is composed of modular and independently detachable support components 3. The fixture not only ensures high-precision fit between the components through detachable connection, thereby improving the transmission accuracy and reliability of vibration test, but also achieves wide compatibility with a series of battery packs 1 of different sizes through flexible configuration of the number of support components 3. This significantly improves the versatility and testing efficiency of the fixture, while reducing the risk of test failure due to fixture mismatch or poor fit.

[0035] In some embodiments, the first mounting part 311 is an oblong hole, which is disposed on the top surface of the mounting plate 31 and penetrates the mounting plate 31, and is used to lock and connect with the fixing hole 11 on the bottom surface of the battery pack 1 by locking bolt 36.

[0036] Specifically, the oblong hole provides a certain linear movement space for the locking bolt 36 along its length. During installation, the operator hoists the battery pack 1, then places the mounting plate 31 on the bottom surface of the battery pack 1, roughly aligning the fixing hole 11 on the bottom surface of the battery pack 1 with the oblong hole along its length. This initial placement is then possible. Subsequently, the mounting plate 31 can be slightly moved within a certain range to align the fixing hole 11 with the oblong hole, and then the locking bolt 36 is inserted and tightened. This significantly reduces the requirements for installation accuracy and simplifies the operation process. Simultaneously, this connection method reliably fixes the battery pack 1 to the mounting plate 31, ensuring that vibration energy can be effectively transferred from the battery pack 1 to the tooling.

[0037] It should be noted that during the installation process, the battery pack 1 is hoisted up and the mounting plate 31 is located on the bottom surface of the battery pack 1. This makes it easy for the operator to visually align the waist-shaped hole and the fixing hole 11, and to easily insert the locking bolt 36. Since the bottom surface of the mounting plate 31 is a clear space, it is very convenient to tighten the screws with a wrench on the bottom surface of the mounting plate 31 without any obstruction.

[0038] By setting the first mounting part 311 as a waist-shaped hole that penetrates the top surface, the fault tolerance and convenience of the battery pack 1 installation process are significantly improved while maintaining the reliability of the detachable connection. This effectively compensates for manufacturing and positioning errors, reduces the difficulty of alignment, and thus substantially improves the assembly efficiency of the entire vibration testing fixture.

[0039] In some embodiments, the first mounting portion 311 is provided with multiple portions at equal intervals along the length of the mounting plate 31. This arrangement allows multiple fixing holes 11 in the width direction of the bottom surface of the battery pack 1 to be bolted through the first mounting portion 311, ensuring that multiple uniform connection points can be established between the battery pack 1 and the mounting plate 31. The uniformly distributed connection points allow the vibration load transmitted from the battery pack 1 to be smoothly and evenly distributed across the entire mounting plate 31, effectively avoiding local stress concentration that may be caused by uneven distribution of connection points, thereby ensuring the structural reliability of the mounting plate 31 under long-term alternating loads.

[0040] In some embodiments, two limiting surfaces 312 are disposed opposite to each other on the mounting plate 31. The distance between the two limiting surfaces 312 is used to limit the width direction of the battery pack 1, and the extending direction of the limiting surface 312 is parallel to the length direction of the waist-shaped hole.

[0041] Specifically, a through groove is machined along the width direction on the top surface of the mounting plate 31, and the two inner walls of the through groove form limiting surfaces 312. The distance between the two limiting surfaces 312 is adapted to the width dimension of the battery pack 1. When the mounting plate 31 is placed on the bottom surface of the battery pack 1, the two limiting surfaces 312 can constrain the degree of freedom in the width direction of the battery pack 1. Since the limiting surfaces 312 restrict the width direction of the battery pack 1, while the length direction of the oblong hole provides the installation adjustment tolerance, these two directions are orthogonal. When the extension direction of the limiting surface 312 is parallel to the length direction of the oblong hole, it means that after the battery pack 1 is precisely positioned in the width direction, it can still slide slightly and freely in the length direction of the oblong hole along the guide of the limiting surface 312.

[0042] The operator can first place the battery pack 1 against the limiting surface 312 to easily achieve precise positioning in the width direction. Then, by simply pushing the mounting plate 31 gently, allowing it to slide along the length direction of the battery pack 1 while maintaining its width position, the fixing hole 11 at the bottom of the battery pack 1 can be easily aligned with the oblong hole on the mounting plate 31. This greatly simplifies the hole-aligning operation, avoids the hassle of simultaneous adjustments on a two-dimensional plane, and decomposes the complex two-dimensional positioning problem into two simple, continuous one-dimensional operations.

[0043] In some embodiments, the support blocks 32 are provided in two rows, the two rows of support blocks 32 extending along the length direction of the mounting plate 31 and arranged symmetrically with respect to the waist-shaped hole.

[0044] Specifically, this double-row layout firstly widens the support base laterally, significantly enhancing the anti-overturning capability and lateral stability of the mounting plate 31 when bearing the load of the battery pack 1 compared to a single-row support. When lateral or torsional loads are generated during vibration testing, the double-row support can form a stable "frame" effect, effectively suppressing the torsional deformation of the mounting plate 31 and ensuring the stability of the battery pack 1 on it.

[0045] Two rows of support blocks 32 extend along the length of the mounting plate 31, thereby forming a linear support structure. This structure can more evenly and effectively transfer the load from the battery pack 1, which is distributed along the length of the mounting plate 31, to the base 34 and ultimately to the vibration platform 2. It optimizes the force transmission path, avoids stress concentration in local areas, and thus improves the overall rigidity and durability of the tooling.

[0046] The two rows of support blocks 32 are symmetrically arranged relative to the oblong hole. This ensures that when the battery pack 1 is connected through the oblong hole, regardless of where the battery pack 1 needs to be fixed in the oblong hole for tolerance adjustment, the line of action of the generated load will always be located in the central area of ​​the support surface formed by the two rows of support blocks 32. This ensures that the load is symmetrically and evenly distributed to the support blocks 32 on both sides, thereby avoiding additional bending moments and potential tooling deformation caused by asymmetrical support. This symmetrical support structure provides a stable and reliable foundation for vibration testing, directly improving the accuracy and pass rate of the test.

[0047] By adopting a double-row support block layout 32 that extends along the length of the mounting plate 31 and is symmetrically arranged relative to the waist-shaped hole, a balanced and stable symmetrical support frame is constructed, which significantly enhances the overall structural strength and rigidity of the tooling, optimizes the transmission path of vibration load, and ensures that the battery pack 1 can obtain symmetrical support in any installation position, thereby fundamentally improving the reliability and accuracy of vibration testing.

[0048] In some embodiments, the support block 32 has an I-shaped structure, including a support beam 321 and an upper crossbeam 322 and a lower crossbeam 323 respectively fixed to the upper and lower ends of the support beam 321. This design allows the material to be mainly distributed at the upper and lower edges (i.e., the upper crossbeam 322 and the lower crossbeam 323) away from the neutral axis of the cross section, thereby achieving the maximum moment of inertia of the cross section with minimal material usage. This means that the support block 32 has extremely high bending stiffness and stability when subjected to bending loads from the mounting plate 31.

[0049] The upper crossbeam 322 has first mounting holes 3221 at both ends. The bottom surface of the mounting plate 31 has first bolt holes 313 corresponding to the positions of the first mounting holes 3221. The first fastener 33 passes through the first mounting holes 3221 and the first locking holes to detachably fix the support block 32 and the mounting plate 31.

[0050] The first fastener 33 is sequentially inserted into the first mounting hole 3221 of the upper crossbeam 322 of the support block 32 and the first bolt hole 313 on the bottom surface of the mounting plate 31. By tightening the nut or screwing the bolt directly into the threaded hole, a strong clamping force is generated. This connection method firmly presses the upper crossbeam 322 of the support block 32 onto the bottom surface of the mounting plate 31, forming a highly rigid mechanical connection.

[0051] By adopting the I-shaped support block 32 and its specific screw connection with the mounting plate 31, the structure is lightweight while providing the mounting plate 31 with extremely high bending support stiffness, ensuring the stability of vibration load transmission. On the other hand, the two-point bolt connection achieves a reliable connection with the mounting plate 31 that is high-precision, high-rigidity, and can be repeatedly disassembled and assembled.

[0052] In some embodiments, the lower crossbeam 323 is provided with second mounting holes 3231 at both ends, and the bottom support 34 is provided with second bolt holes 342 at the position corresponding to the second mounting holes 3231 on its top surface. The second fastener 35 passes through the second mounting holes 3231 and the second bolt holes 342 to detachably fix the support block 32 and the bottom support 34.

[0053] Specifically, second mounting holes 3231 are provided at both ends of the lower crossbeam 323 of the I-shaped support block 32. This design ensures that the connection points between the support block 32 and the base support 34 are located on both sides of the width direction of the support block 32, corresponding vertically to the connection points of the upper crossbeam 322. This ensures that the load can be smoothly and eccentrically transmitted to the base support 34 along the support beam 321, avoiding additional torque caused by eccentric connection points.

[0054] The connection method between the support block 32 and the base 34 is the same as the connection method between the support block 32 and the mounting plate 31, together forming a complete detachable fixed connection system. This allows the support block 32 to be easily installed or removed from the mounting plate 31 and the base 34 as an independent module, greatly facilitating the transportation, storage and reassembly of the tooling.

[0055] In some embodiments, the second mounting portion 341 is an array of mounting holes arranged on the surface of the base 34, and the vibration platform 2 is provided with a plurality of third bolt holes 21 arranged in an array, the spacing of the third bolt holes 21 matching the spacing of the mounting holes.

[0056] Specifically, multiple mounting holes are machined on the surface of the base 34 in a regular arrangement (such as a matrix or linear array). This design is not arbitrary, but based on standardization and modularity considerations, aiming to provide multiple selectable connection points at the interface between the base 34 and the vibration platform 2.

[0057] The vibration platform 2 is typically also arrayed with multiple third bolt holes 21. These are standardized interfaces for vibration testing equipment. The spacing of the third bolt holes 21 matches the spacing of the mounting holes, meaning that the hole spacings are compatible, such as being the same or an integer multiple thereof. This allows any suitable set of mounting holes on the base 34 to find corresponding bolt holes on the vibration platform 2 for connection.

[0058] When the assembled fixture (with battery pack 1 installed) needs to be fixed onto the vibration platform 2, the operator does not need to find a single fixed alignment point. Since both the base 34 and the vibration platform 2 have arrayed holes with matching spacing, the fixture can be translated within a certain range along its length and width on the vibration platform 2. The operator can flexibly select a set of holes that are easy to align (for example, aligning the third mounting holes at the four corners of the base 34 with any set of four adjacent third bolt holes 21 on the vibration platform 2), and then use fasteners (such as bolts) to lock the connection.

[0059] By defining the second mounting part 341 as an array of mounting holes that match the bolt hole spacing of the vibration platform 2, the tooling is given the ability to be flexibly positioned on the vibration platform 2, which greatly simplifies the final installation and fixing operation, and enables the tooling to flexibly adapt to different test layout requirements, significantly improving the efficiency of test preparation and the applicability of the tooling.

[0060] In some embodiments, the mounting plate 31 is provided with at least one weight-reduction groove 314, which is a groove, hole, or hollow structure formed on the mounting plate 31 body by means of machining or other methods. This design is based on a basic concept in mechanics of materials: by removing material from areas bearing less load or near the neutral axis, the weight of the component can be effectively reduced with minimal impact on the overall stiffness and strength of the component.

[0061] In the above embodiments, the first fastener 33 and the second fastener 35 are anti-loosening bolts, which can ensure the structural strength and stability after locking.

[0062] The installation process of the vibration testing fixture for battery pack 1 disclosed in this embodiment is as follows: First, the battery pack 1 is hoisted onto the fixture, its bottom surface aligning with the top surface of the mounting plate 31. Initial positioning is achieved using the limiting structure on the mounting plate 31. Then, bolts are passed through the fixing holes 11 at the bottom of the battery pack 1 and the slotted holes on the mounting plate 31, which serve as the first mounting part 311, to secure it. Next, the upper crossbeam 322 of the support block 32 is aligned with the bottom surface of the mounting plate 31. A first fastener 33 is passed through the first mounting hole 3221 of the upper crossbeam 322 and the locking hole at the bottom of the mounting plate 31 to secure them. Then, the top surface of the base support 34 is aligned with the lower crossbeam 323 of the support block 32. A second fastener 35 is passed through the second mounting hole 3231 of the lower crossbeam 323 and the bolt hole at the top of the base support 34 to complete the installation of the base support 34. After the battery pack 1 is connected to the entire tooling as a whole, it is hoisted onto the vibration platform 2. Finally, the second mounting part 341 arranged in an array on the base 34 is connected and fixed to the bolt holes on the vibration platform 2 by bolts, and the test can begin.

[0063] When disassembling the vibration testing fixture for battery pack 1, the first fastener 33 can be removed directly to separate the support block 32 and the mounting plate 31. At this time, the battery pack 1 can be hoisted up, and then the mounting plate 31 can be removed from the bottom of the battery pack 1. This completes the disassembly of the battery pack 1 and the fixture. Of course, at this time, some parts of the fixture are still fixedly connected to the vibration platform 2, which can be disassembled in sequence for easy secondary use.

[0064] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A battery pack vibration testing fixture for connecting a battery pack (1) and a vibration platform (2), characterized in that: It includes multiple parallel and independently detachable support components (3), wherein the support components (3) include: The mounting plate (31) has a first mounting part (311) on its top surface for detachable connection with the battery pack (1); The top of the support block (32) is detachably connected to the bottom surface of the mounting plate (31) by a first fastener (33); The bottom support (34) is detachably connected to the bottom of the support block (32) by a second fastener (35), and the bottom support (34) is provided with a second mounting part (341) for detachable connection with the vibration platform (2); The number of multiple support components (3) can be configured according to the size of the battery pack (1).

2. The battery pack vibration testing fixture as described in claim 1, characterized in that: The first mounting part (311) is a waist-shaped hole. The waist-shaped hole is located on the top surface of the mounting plate (31) and passes through the mounting plate (31). It is used to lock the mounting plate (1) to the fixing hole (11) on the bottom surface of the battery pack (1) by means of a locking bolt (36).

3. The battery pack vibration testing fixture as described in claim 1, characterized in that: The first mounting part (311) has multiple parts evenly spaced along the length of the mounting plate (31).

4. The battery pack vibration testing fixture as described in claim 2, characterized in that: The mounting plate (31) has two limiting surfaces (312) arranged opposite to each other. The distance between the two limiting surfaces (312) is used to limit the width of the battery pack (1), and the extension direction of the limiting surface (312) is parallel to the length direction of the waist-shaped hole.

5. The battery pack vibration testing fixture as described in claim 2, characterized in that: The support block (32) is provided in two rows, and the two rows of support blocks (32) extend along the length direction of the mounting plate (31) and are arranged symmetrically relative to the first mounting part (311).

6. The battery pack vibration testing fixture as described in claim 4, characterized in that: The support block (32) has an I-shaped structure, including a support beam (321) and an upper crossbeam (322) and a lower crossbeam (323) fixed to the upper and lower ends of the support beam (321) respectively; the upper crossbeam (322) has a first mounting hole (3221) at each end, and the bottom surface of the mounting plate (31) has a first bolt hole (313) corresponding to the first mounting hole (3221). The first fastener (33) passes through the first mounting hole (3221) and the first bolt hole (313) to detachably fix the support block (32) and the mounting plate (31).

7. The battery pack vibration testing fixture as described in claim 6, characterized in that: The lower crossbeam (323) has a second mounting hole (3231) at each end. The bottom support (34) has a second bolt hole (342) on its top surface corresponding to the second mounting hole (3231). The second fastener (35) passes through the second mounting hole (3231) and the second bolt hole (342) to detachably fix the support block (32) and the bottom support (34).

8. The battery pack vibration testing fixture as described in claim 1, characterized in that: The second mounting part (341) is an array of mounting holes arranged on the surface of the base (34). The vibration platform (2) is provided with an array of third bolt holes (21), and the spacing of the third bolt holes (21) matches the spacing of the mounting holes.

9. The battery pack vibration testing fixture as described in claim 1, characterized in that: The mounting plate (31) is provided with at least one weight-reducing groove (314).

10. The battery pack vibration testing fixture as described in claim 7, characterized in that: The first fastener (33) and the second fastener (35) are anti-loosening bolts.

Images