Battery pack uniaxial vibration test tooling

Abstract

The utility model discloses a kind of battery pack single-shaft vibration test tool, belong to battery pack vibration test technical field, including bottom plate, a pair of baffle, a pair of limit plate and anti-drop assembly, bottom plate is detachably connected with vibration platform by bolt, a pair of baffle is respectively located bottom plate both ends and is fixedly connected with it, the battery pack single-shaft vibration test tool, wrapping is carried out to battery pack body by the box structure surrounded by baffle and limit plate, to play protection effect, then fixed by anti-drop assembly, at this time battery pack body can be adhered with bottom plate above bottom plate, also can be in the state of suspension, can be adjusted according to battery pack model and actual installation mode, simulate actual working condition, solve the existing battery pack single-shaft vibration test tool mostly difficult to form effective protection to battery pack, and battery pack cannot reproduce installation condition under real car state, seriously affect the accuracy of test result situation.

Description

Technical Field

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

[0002] Battery pack vibration testing is a core project for the reliability verification of power battery systems in new energy vehicles. Its purpose is to simulate the vibration environment of vehicles under conditions such as road driving, transportation, and bumps, and to verify key indicators such as the structural strength, electrical connection stability, and sealing performance of the battery pack, so as to ensure its safe and reliable operation throughout its entire life cycle and in compliance with national and industry standards.

[0003] Among them, uniaxial vibration testing is an important component of the vibration testing system. This test requires the battery pack to be securely clamped onto the vibration test bench using special tooling, so that the battery pack bears vibration load along a preset single direction (such as the vertical direction of the whole vehicle).

[0004] Currently, existing battery pack uniaxial vibration testing fixtures generally have design shortcomings: most of them simply use bolts to rigidly fix the battery pack directly to the vibration platform, which lacks buffer protection and limiting structures adapted to the shape of the battery pack. This makes it difficult to effectively protect vulnerable parts such as the edges and interfaces of the battery pack shell, and it cannot accurately reproduce the installation boundary conditions and stress characteristics of the battery pack under actual vehicle conditions. This not only easily causes unexpected damage to the battery pack during the test, but also leads to deviations between the test data and the vibration response under actual working conditions, seriously affecting the accuracy and reference value of the test results. Utility Model Content

[0005] The purpose of this invention is to provide a single-axis vibration testing fixture for battery packs, which can protect the battery packs and simulate the actual installation conditions of the battery packs, thereby improving the reliability of the test results.

[0006] To achieve this objective, the present invention adopts the following technical solution: A single-axis vibration testing fixture for a battery pack is provided, comprising a base plate, a pair of baffles, a pair of limiting plates, and an anti-detachment component. The base plate is detachably connected to the vibration platform by bolts. The pair of baffles are located at both ends of the base plate and are fixedly connected thereto. The pair of limiting plates are located on both sides of the base plate and are fixedly connected thereto. The top of the limiting plates has multiple grooves for accommodating the protrusions on both sides of the battery pack body. The anti-detachment component is installed on the base plate through the baffles and limiting plates and is used to prevent the battery pack body from falling off.

[0007] Furthermore, the anti-detachment component includes multiple locking blocks and a first limiting strip. The multiple locking blocks are fixedly connected to the top of two limiting plates respectively, and the first limiting strip is fixedly connected to the top of one of the limiting plates. One side of the locking blocks and one side of the first limiting strip are detachably connected to the battery pack body.

[0008] Furthermore, the anti-detachment component also includes a pair of second limiting strips, which are fixedly connected to the top of the baffle, and one end of the second limiting strips is detachably connected to the battery pack body.

[0009] Furthermore, the top of the base plate has multiple through mounting holes arranged in an array, which are used for bolts to pass through.

[0010] Furthermore, an insulating pad is provided on the top of the base plate, with the top and bottom of the insulating pad contacting the battery pack body and the base plate respectively.

[0011] The beneficial effects of this utility model are as follows: By incorporating an anti-detachment component, when testing the battery pack, the base plate is first fixed to the vibration platform with bolts. Then, the battery pack body is placed on the base plate, aligning the protrusions on both sides of the battery pack body with the grooves on the limiting plate. Simultaneously, the battery pack body is enclosed by the box-like structure formed by the baffle and the limiting plate, providing protection. Next, the locking block and the first limiting strip are installed on the top of the limiting plate with bolts, and the second limiting strip is installed on the baffle. Bolts are then threaded through the locking block, the first limiting strip, and the second limiting strip to the battery pack body, achieving fixation. At this point, the battery pack body can either be in contact with the base plate or suspended in mid-air above it. This can be adjusted according to the battery pack model and actual installation method, simulating actual working conditions and improving the reliability of test data. Attached Figure Description

[0012] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly described below. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0013] Figure 1 This is a schematic diagram of the overall structure of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the present invention. Figure 2 ; Figure 3 This is an exploded view of the overall structure of this utility model.

[0014] In the picture: 1. Base plate; 10. Mounting hole; 11. Baffle; 12. Limiting plate; 120. Groove; 13. Battery pack body; 14. Insulating pad; 2. Anti-detachment component; 20. Locking block; 21. First limit bar; 22. Second limit bar. Detailed Implementation

[0015] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0016] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0017] Reference Figures 1 to 3 The battery pack uniaxial vibration testing fixture shown includes a base plate 1, a pair of baffles 11, a pair of limiting plates 12, and an anti-detachment component 2. The base plate 1 is detachably connected to the vibration platform by bolts. The pair of baffles 11 are located at both ends of the base plate 1 and are fixedly connected to it. The pair of limiting plates 12 are located on both sides of the base plate 1 and are fixedly connected to it. The top of the limiting plate 12 has multiple grooves 120 for accommodating the protrusions on both sides of the battery pack body 13. The anti-detachment component 2 is installed on the base plate 1 through the baffles 11 and the limiting plates 12, and is used to prevent the battery pack body 13 from falling off.

[0018] When testing the battery pack, the base plate 1 is first fixed to the vibration platform with bolts, and then the battery pack body 13 is placed on the base plate 1, so that the protrusions on both sides of the battery pack body 13 are aligned with the grooves 120 on the limiting plate 12. At the same time, the battery pack body 13 is wrapped by the box structure formed by the baffle 11 and the limiting plate 12. Then, the battery pack body 13 is fixed to the base plate 1 by the anti-detachment component 2. As the vibration platform works, it can drive the battery pack to vibrate in the vertical direction, thereby achieving a protective effect.

[0019] like Figure 3 As shown, the anti-detachment component 2 includes multiple locking blocks 20 and a first limiting strip 21. The multiple locking blocks 20 are fixedly connected to the top of two limiting plates 12 respectively, and the first limiting strip 21 is fixedly connected to the top of one of the limiting plates 12. One side of the locking block 20 and one side of the first limiting strip 21 are detachably connected to the battery pack body 13.

[0020] The anti-detachment component 2 also includes a pair of second limiting strips 22, which are fixedly connected to the top of the baffle 11, and one end of the second limiting strip 22 is detachably connected to the battery pack body 13.

[0021] The locking block 20 and the first limiting strip 21 are installed on the top of the limiting plate 12 by bolts, and the second limiting strip 22 is installed on the baffle 11. The locking block 20, the first limiting strip 21, and the second limiting strip 22 all protrude towards the center of the base plate 1, so that they can cover the top of the battery pack body 13, which facilitates the anti-detachment limiting of the battery pack body 13. At the same time, the bolts pass through the locking block 20, the first limiting strip 21, and the second limiting strip 22 and are then threadedly connected to the battery pack body 13, which can fix the battery pack body 13. At this time, the battery pack body 13 can be either attached to the base plate 1 or suspended above it. It can be adjusted according to the battery pack model and the actual installation method to simulate the actual working conditions and improve the reliability of the test data.

[0022] The positions of the second limiting strip 22 and the baffle 11 correspond to the relatively flat ends of the battery pack body 13. The limiting plate 12 corresponds to the two sides of the battery pack body 13. The installation position of the battery pack body 13 can be quickly positioned through the groove 120. The locking block 20 and the first limiting strip 21 are installed at different positions on the top of the limiting plate 12 to adapt to different models of battery pack bodies 13 and achieve uniform force distribution.

[0023] like Figure 3 As shown, the top of the base plate 1 has multiple through mounting holes 10, which are arranged in an array and are used for bolts to pass through.

[0024] By passing the bolt through the mounting hole 10 and connecting it to the vibration platform thread, the base plate 1 can be fixedly installed. The mounting hole 10 has multiple holes arranged in an array, which allows the bolt to avoid the battery pack body 13 and avoid collision, while also accommodating different models of battery pack bodies 13.

[0025] like Figure 2 As shown, an insulating pad 14 is provided on the top of the base plate 1, and the top and bottom of the insulating pad 14 abut against the battery pack body 13 and the base plate 1, respectively.

[0026] The insulating pad 14 is used to absorb the impact generated by the slight movement between the battery pack body 13 and the base plate 1, and also serves as insulation to prevent damage to the battery pack body 13 and accidents caused by discharge. The entire tooling is coated with an insulating coating to further enhance the insulation effect. When the battery pack body 13 is installed suspended on the base plate 1, the insulating pad 14 is not required.

[0027] Working principle First, the workers fixed the base plate 1 to the vibration platform with bolts. Then, they placed the battery pack body 13 on the base plate 1, aligning the protrusions on both sides of the battery pack body 13 with the grooves 120 on the limiting plate 12. Simultaneously, the battery pack body 13 was enclosed by the box-like structure formed by the baffle 11 and the limiting plate 12, thus providing protection. Next, the locking block 20 and the first limiting strip 21 were installed on the top of the limiting plate 12 with bolts, and the second limiting strip 22 was installed on the baffle 11. The locking block 20, the first limiting strip 21, and the second limiting strip 22 all protrude towards the center of the base plate 1, making... It can cover the top of the battery pack body 13, which facilitates the anti-detachment and limiting of the battery pack body 13. At the same time, the bolts pass through the locking block 20 and are threadedly connected to the first limiting strip 21 and the second limiting strip 22 and then to the battery pack body 13, which can fix the battery pack body 13. At this time, the battery pack body 13 can be either attached to the base plate 1 or suspended above the base plate 1. It can be adjusted according to the battery pack model and the actual installation method to simulate the actual working conditions. As the vibration platform works, it can drive the battery pack to vibrate in the vertical direction, which improves the reliability of the test data.

[0028] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to this utility model. However, such variations, as long as they do not depart from the spirit of this utility model, should be within the protection scope of this utility model. Furthermore, some terminology used in this application specification and claims is not limiting, but merely for ease of description.

Claims

1. A uniaxial vibration testing fixture for a battery pack, characterized in that, The device includes a base plate (1), a pair of baffles (11), a pair of limiting plates (12), and an anti-detachment component (2). The base plate (1) is detachably connected to the vibration platform by bolts. The pair of baffles (11) are located at both ends of the base plate (1) and are fixedly connected to it. The pair of limiting plates (12) are located on both sides of the base plate (1) and are fixedly connected to it. The top of the limiting plate (12) is provided with multiple grooves (120). The grooves (120) are used to accommodate the protrusions on both sides of the battery pack body (13). The anti-detachment component (2) is installed on the base plate (1) through the baffles (11) and the limiting plates (12). The anti-detachment component (2) is used to prevent the battery pack body (13) from falling off.

2. The battery pack uniaxial vibration testing fixture according to claim 1, characterized in that, The anti-detachment component (2) includes multiple locking blocks (20) and a first limiting strip (21). The multiple locking blocks (20) are fixedly connected to the top of two limiting plates (12) respectively, and the first limiting strip (21) is fixedly connected to the top of one of the limiting plates (12). One side of the locking block (20) and one side of the first limiting strip (21) are detachably connected to the battery pack body (13).

3. The battery pack uniaxial vibration testing fixture according to claim 2, characterized in that, The anti-detachment component (2) also includes a pair of second limiting strips (22), which are fixedly connected to the top of the baffle (11), and one end of the second limiting strip (22) is detachably connected to the battery pack body (13).

4. The battery pack uniaxial vibration testing fixture according to claim 1, characterized in that, The top of the base plate (1) has multiple through mounting holes (10), which are arranged in an array. The mounting holes (10) are used for bolts to pass through.

5. The battery pack uniaxial vibration testing fixture according to claim 1, characterized in that, An insulating pad (14) is provided on the top of the base plate (1). The top and bottom of the insulating pad (14) are in contact with the battery pack body (13) and the base plate (1), respectively.

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