Test tool

By designing a test fixture that includes a base, a beam structure, and an adapter bracket, the problem of mismatch between the battery pack and the test fixture assembly was solved, and the battery pack in the vehicle installation state was simulated, thus improving the accuracy and stability of the test.

CN223883162UActive Publication Date: 2026-02-06EVE ENERGY CO LTD
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Patent Information

Application Number
CN202520194683.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-07
Publication Date
2026-02-06
Estimated Expiration
2035-02-07

AI Technical Summary

Technical Problem

The existing battery pack and test fixture assembly does not match the actual installation of the battery pack on the vehicle, resulting in poor accuracy and persuasiveness of the test results.

Method used

A test fixture was designed, including a base, a beam structure, and a transfer bracket. The base can be detachably installed on a vibration and impact table. The beam structure consists of a support beam and a crossbeam. The transfer bracket is straddling the crossbeam to fix the battery pack, simulating the installation state of the battery pack on a vehicle.

Benefits of technology

It improves the installation stability of battery packs, enhances the accuracy and persuasiveness of tests, adapts to battery packs of different specifications, and simplifies installation and debugging operations.

✦ Generated by Eureka AI based on patent content.

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    Figure CN223883162U_ABST
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Abstract

The utility model provides a test tool, which is used for a vibration test of a battery pack to be tested and comprises a base, a beam frame structure and an adapter bracket, the base is detachably mounted on a vibration impact table; the beam frame structure comprises a supporting beam and two cross beams, the two cross beams are placed on the base and oppositely arranged in a spaced mode in the first direction, and the supporting beam is detachably installed on the base and connected with the two cross beams so that the beam frame structure can be equivalent to a whole vehicle cross beam; the switching support is arranged in the first direction and strides over the two cross beams, the switching support is detachably connected with the cross beams, and the side, facing the vibration impact table, of the switching support is used for installing a to-be-tested battery pack so that the to-be-tested battery pack can be clamped and fixed to the vibration impact table; the installation stability of the to-be-tested battery pack is improved, the installation state of the battery pack on the vehicle is simulated, and the test persuasion and accuracy are improved.
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Description

TECHNICAL FIELD

[0001] The utility model relates to battery manufacturing frock technical field, concretely relates to a test frock. BACKGROUND

[0002] Battery pack is one of the most important core components of electric vehicles, and before mass production, it needs to be detected according to relevant standards to ensure the safety and reliability of the battery pack under complex vehicle operating conditions. In the detection project, the fixed frequency vibration, random vibration, mechanical impact, simulated collision and other experiments need to use frock to rigidly connect the battery pack and the test bench together, but in the related technology, the assembly of the battery pack and the frock is not consistent with the actual installation of the battery pack on the vehicle, which leads to poor accuracy and persuasiveness of the test results. SUMMARY

[0003] The embodiment of the utility model provides a kind of test frock, can improve the installation stability of the battery pack to be measured simultaneously, simulates the installation state of battery pack on vehicle, improves the persuasiveness and accuracy of test.

[0004] In the first aspect, the embodiment of the utility model provides a kind of test frock, for the vibration test of battery pack, comprising:

[0005] Base, the base is used to be detachably installed on vibration impact platform;

[0006] Beam structure, the beam structure includes support beam and two cross beams, two the cross beam rests on the base, and is oppositely spaced in the first direction, the support beam is detachably installed on the base, and is connected two the cross beam, so that the beam structure is equivalent to the cross beam of whole vehicle;And,

[0007] Adapter support, the adapter support is set along the first direction and is across two the cross beam, the adapter support is detachably connected with the cross beam, the side of the adapter support towards vibration impact platform is used for the installation of battery pack to be measured, to hold and fix battery pack to be measured on vibration impact platform.

[0008] In an embodiment, the base includes two seat bodies, two the seat body is side by side spaced in the second direction, each the seat body is detachably installed on vibration impact platform and is set along the first direction;

[0009] Each the cross beam is set along the second direction and is across two the seat body;

[0010] The support beam is at least provided with two, two the support beam is spaced in the second direction, each the support beam is detachably installed on one the seat body;

[0011] The side of the adapter bracket facing the vibration impact table is used for mounting the battery pack to be tested, and the battery pack to be tested is located between the two seat bodies.

[0012] In an embodiment, the seat body comprises a mounting plate, a bearing plate, and a plurality of rib plates, the mounting plate is used for detachable mounting on the vibration impact table, the bearing plate is located on the side of the mounting plate away from the vibration impact table, and a plurality of the rib plates are arranged side by side and spaced apart in the first direction, each of the rib plates is arranged between the mounting plate and the bearing plate and connects the mounting plate and the bearing plate.

[0013] The support beam is detachably mounted on the bearing plate.

[0014] In an embodiment, the beam frame structure further comprises a connecting bottom plate, the connecting bottom plate is detachably mounted on the base, the connecting bottom plate is arranged along the first direction, the cross beam is placed on the connecting bottom plate, and the support beam is detachably mounted on the connecting bottom plate.

[0015] In an embodiment, the relative positions of the two cross beams on the connecting bottom plate in the first direction are adjustable, and correspondingly, the length of the support beam is adjustable.

[0016] In an embodiment, the beam frame structure further comprises a reinforcing plate, the bottom surface of the reinforcing plate is detachably connected with the base, and the side surface of the reinforcing plate is detachably connected with the cross beam.

[0017] In an embodiment, the adapter bracket comprises an adapter frame, the adapter frame is arranged along the first direction and across the two cross beams, the adapter frame is located on the side of the cross beam facing the vibration impact table and is detachably connected with the cross beam, the side of the adapter frame facing the vibration impact table is used for detachable connection with the circumferential side protrusion of the battery pack to be tested, and the pack body of the battery pack to be tested is arranged in the adapter frame.

[0018] In an embodiment, the adapter bracket further comprises a connecting frame and a connecting block, the connecting frame is arranged on the side of the adapter frame away from the vibration impact table and covers the outer side of part of the pack body of the battery pack to be tested, the connecting frame is partially avoided by the cross beam, the connecting block is arranged between the connecting frame and the cross beam and is detachably connected with the connecting frame and the cross beam.

[0019] In an embodiment, the test tool further comprises a bolt connection structure, wherein:

[0020] The bolt connection structure is arranged between the base and the vibration impact table; and / or,

[0021] The bolt connection structure is arranged between the support beam and the base; and / or,

[0022] The bolt connection structure is arranged between the support beam and the cross beam; and / or,

[0023] The bolt connection structure is arranged between the adapter support and the cross beam.

[0024] In an embodiment, the material of the base is set to be aluminum alloy or aluminum; and / or,

[0025] The material of the cross beam is set to be steel; and / or,

[0026] The material of the support beam is set to be steel; and / or,

[0027] The material of the adapter support is set to be aluminum alloy or aluminum.

[0028] The embodiment of the utility model has the advantages of:

[0029] In the embodiment of the utility model, the test tool includes a base, a beam structure and an adapter support, the base is detachably installed on a vibration impact table, the beam structure includes a support beam and two cross beams, the two cross beams are placed on the base and are arranged at intervals, the adapter support is arranged on the two cross beams, one side of the adapter support facing the vibration impact table is used for mounting the battery pack to be tested, so that the battery pack to be tested is clamped and fixed on the vibration impact table; the support beam is detachably installed on the base and is connected with the two cross beams, so that the beam structure is equivalent to the whole vehicle cross beam; that is to say, the battery pack to be tested is fixed on the beam structure through the adapter support, and the beam structure is fixed on the vibration impact table through the base, so that the installation stability of the battery pack to be tested is improved; at the same time, the beam structure is equivalent to the whole vehicle cross beam, so that the installation state of the battery pack on the vehicle can be simulated, and the persuasiveness and accuracy of the test are improved. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical scheme in the embodiment of the utility model, the following will briefly introduce the drawings needed to be used in the embodiment description, obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained according to these drawings without creating creative labor.

[0031] Figure 1 It is the axial side view of the test tool (with battery pack) provided by the embodiment of the utility model;

[0032] Figure 2 It is the structure exploded schematic view of the test tool (with battery pack) provided by the embodiment of the utility model;

[0033] Figure 3 It is the structure exploded schematic view of the test tool (without battery pack) provided by the embodiment of the utility model;

[0034] Figure 4 is the shaft side view of the test tool (assembly vibration table) provided by the embodiment of the utility model;

[0035] Figure 5 is the structural exploded schematic view of the test tool (assembly vibration table) provided by the embodiment of the utility model.

[0036] The name of the component corresponding to the corresponding reference sign in the figure is:

[0037] 100 test tool;1 base;11 seat body;111 mounting plate;112 bearing plate;113 rib plate;2 beam structure;21 support beam;22 cross beam;23 connecting bottom plate;24 reinforcing plate;3 adapter support;31 adapter frame;32 connecting frame;321 connecting plate;322 connecting rod;33 connecting block;4 bolt connection structure

[0038] 200 vibration impact table;

[0039] 300 battery pack to be measured;301 convex edge;302 package body;

[0040] F1 first direction;F2 second direction; DETAILED DESCRIPTION

[0041] The technical scheme in the embodiments of the utility model will be described clearly and completely in combination with the drawings in the embodiments of the utility model, obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by the person skilled in the art without creative labor belong to the protection scope of the utility model. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the utility model, and are not used to limit the utility model. In the utility model, the orientation words such as "up" and "down" are generally used to indicate the up and down of the device in the actual use or working state, and the specific is the direction of the drawing in the drawing, and "inner" and "outer" are used to the contour of the device.

[0042] The utility model provides a kind of test tool 100, for the vibration test of battery pack 300 to be measured, please refer to Figures 1 to 5The test tool 100 comprises a base 1, a beam structure 2 and an adapter bracket 3; the base 1 is detachably mounted on the vibration impact table 200; the beam structure 2 comprises a support beam 21 and two cross beams 22, the two cross beams 22 are arranged on the base 1 and are oppositely spaced in a first direction F1, the support beam 21 is detachably mounted on the base 1 and is connected to the two cross beams 22, so that the beam structure 2 is equivalent to the vehicle cross beam 22; the adapter bracket 3 is arranged along the first direction F1 and is arranged on the two cross beams 22, the adapter bracket 3 is detachably connected to the cross beams 22, and one side of the adapter bracket 3 facing the vibration impact table 200 is used for mounting the battery pack 300 to be tested, so that the battery pack 300 to be tested is clamped and fixed on the vibration impact table 200.

[0043] In the embodiment of the utility model, test tool 100 including base 1, beam structure 2 and adapter bracket 3, base 1 detachable mounting is on vibration impact table 200, beam structure 2 includes support beam 21 and two cross beams 22, two cross beams 22 are arranged on base 1 and are spaced, adapter bracket 3 is arranged on two cross beams 22, one side of adapter bracket 3 facing vibration impact table 200 is used for mounting battery pack 300 to be tested to be held fixed on vibration impact table 200, support beam 21 detachable mounting is on base 1 and is connected to two cross beams 22, so that beam structure 2 is equivalent to vehicle cross beam 22, that is to say, battery pack 300 to be tested is fixed on beam structure 2 through adapter bracket 3, beam structure 2 is fixed on vibration impact table 200 through base 1, thereby improve the installation stability of battery pack 300 to be tested, simultaneously, beam structure 2 is equivalent to vehicle cross beam 22, thereby can simulate the installation state of battery pack on vehicle, and then improve the persuasion and accuracy of test.

[0044] In combination with the structure of the test tool 100 of the embodiment, the assembly steps of the test tool 100 are as follows: first, detachably mounting the base 1 on the vibration impact table 200; second, mounting the adapter bracket 3 on the cross beams 22 of the beam structure 2; third, mounting the battery pack 300 to be tested on the adapter bracket 3; and finally, mounting the assembled beam structure 2 on the base 1 and clamping and fixing the battery pack 300 to be tested on the vibration impact table 200. The adapter bracket 3, the beam structure 2 and the base 1 are convenient to assemble with the battery pack to be tested and the vibration impact table 200, and the corresponding adapter bracket 3, beam structure 2 and base 1 can be selected according to the specifications of the battery pack to be tested, thereby improving the complicated operation problem of the installation and debugging of the battery pack test tool 100.

[0045] Please refer to Figure 2In an embodiment, the base 1 comprises two seat bodies 11, the two seat bodies 11 are arranged side by side and spaced apart in the second direction F2, each of the seat bodies 11 is detachably mounted on the vibration impact table 200 and arranged along the first direction F1; each of the cross beams 22 is arranged along the second direction F2 and across the two seat bodies 11; the support beams 21 are arranged at least in two, the two support beams 21 are arranged spaced apart in the second direction F2, each of the support beams 21 is detachably mounted on one of the seat bodies 11; the adapter bracket 3 is arranged on the side of the vibration impact table 200 for mounting the battery pack 300 to be tested, and the battery pack 300 to be tested is located between the two seat bodies 11.

[0046] In the embodiment, two seat bodies 11 are mounted on the vibration impact table 200, the two seat bodies 11 are arranged side by side and spaced apart in the second direction F2, and an installation space is formed between the two seat bodies 11; each of the cross beams 22 is arranged along the second direction F2 and across the two seat bodies 11, the two cross beams 22 are connected by the support beams 21, the support beams 21 are arranged in two, each of the support beams 21 is mounted on one of the seat bodies 11, so as to realize the assembly of the beam frame structure 2 and the seat bodies 11; at the same time, the adapter bracket 3 is mounted on the cross beam 22, the adapter bracket 3 is arranged on the side of the vibration impact table 200 for mounting the battery pack 300 to be tested, and the battery pack 300 to be tested is located between the two seat bodies 11, so as to not only make the installation of the test tooling 100 and the battery pack 300 to be tested more compact, but also further simulate the installation position of the battery pack on the vehicle, thereby improving the persuasiveness and accuracy of the test.

[0047] It can be known that, since the seat body 11 is detachably mounted on the vibration impact table 200, the position of the seat body 11 on the vibration impact table 200 can be adjusted; by adjusting the relative positions of the two seat bodies 11 in the second direction F2, the spacing of the two seat bodies 11 in the second direction F2 is adjusted, thereby adapting to battery packs to be tested of different specifications.

[0048] Specifically, referring to Figure 3 , the seat body 11 comprises a mounting plate 111, a bearing plate 112, and a plurality of rib plates 113, the mounting plate 111 is used for detachable mounting on the vibration impact table 200, the bearing plate 112 is located on the side of the mounting plate 111 away from the vibration impact table 200, and the plurality of rib plates 113 are arranged side by side and spaced apart in the first direction F1, each of the rib plates 113 is arranged between the mounting plate 111 and the bearing plate 112 and connects the mounting plate 111 and the bearing plate 112; wherein, the support beam 21 is detachably mounted on the bearing plate 112.

[0049] In the embodiment, in the vertical direction, the seat body 11 comprises oppositely arranged mounting plates 111 and bearing plates 112, which are connected by a plurality of rib plates 113, and the plurality of rib plates 113 are arranged side by side and spaced apart in the first direction F1, thereby ensuring the overall stability of the seat body 11, and since the support beam 21 is detachably mounted on the bearing plate 112, the plurality of rib plates 113 can support the bearing plate 112, ensuring that the bearing plate 112 is evenly stressed everywhere, thereby ensuring the mounting stability between the seat body 11 and the beam structure 2.

[0050] Please refer to Figure 2 and Figure 3 , the beam structure 2 further comprises a connecting bottom plate 23, which is detachably mounted on the base 1, the connecting bottom plate 23 is arranged along the first direction F1, the cross beam 22 is placed on the connecting bottom plate 23, and the support beam 21 is detachably mounted on the connecting bottom plate 23.

[0051] In the embodiment, the two cross beams 22 are connected and fixed by the support beam 21; the support beam 21 is detachably mounted on the connecting bottom plate 23, the cross beam 22 is in contact with the connecting bottom plate 23; and the assembled beam structure 2 is detachably mounted on the base 1.

[0052] Specifically, in the first direction F1, the relative positions of the two cross beams 22 on the connecting bottom plate 23 are adjustable, and correspondingly, the length of the support beam 21 is adjustable. In the embodiment, by adjusting the relative positions of the two cross beams 22 on the connecting bottom plate 23, the spacing of the two cross beams 22 in the first direction F1 is adjusted, thereby adapting to different specifications of the battery pack to be tested.

[0053] In an embodiment, the beam structure 2 further comprises a reinforcing plate 24, the bottom surface of the reinforcing plate 24 is detachably connected with the base 1, and the side surface of the reinforcing plate 24 is detachably connected with the cross beam 22. By arranging the reinforcing plate 24 between the base 1 and the cross beam 22, the mounting stability between the base 1 and the cross beam 22 is improved, thereby increasing the overall stability of the test tool 100.

[0054] Please refer to Figure 2 and Figure 3In an embodiment, the adapter support 3 comprises an adapter frame 31, which is arranged along the first direction F1 and across the two beams 22, is located on the side of the beams 22 facing the vibration impact table 200, and is detachably connected with the beams 22. The side of the adapter frame 31 facing the vibration impact table 200 is used for detachable connection with the peripheral flange 301 of the battery pack 300 to be tested, and the pack body 302 of the battery pack 300 to be tested is arranged through the adapter frame 31.

[0055] In the embodiment, the adapter frame 31 is mounted on the beams 22, and the adapter frame 31 is located on the side of the beams 22 facing the vibration impact table 200. The battery pack 300 to be tested is mounted on the side of the adapter frame 31 facing the vibration impact table 200. Since the adapter frame 31 is hollow, when the adapter frame 31 and the peripheral flange 301 of the battery pack 300 to be tested are assembled, the pack body 302 of the battery pack 300 to be tested can be arranged through the adapter frame 31. This not only makes the installation of the test tool 100 and the battery pack 300 to be tested more compact, but also enables the frame body of the adapter frame 31 to serve as a limiting structure of the battery pack 300 to be tested.

[0056] Specifically, the adapter support 3 further comprises a connecting frame 32 and a connecting block 33. The connecting frame 32 is arranged on the side of the adapter frame 31 away from the vibration impact table 200, is used for covering the outer side of the pack body 302 of the battery pack 300 to be tested arranged through the adapter frame 31, and is partially arranged to avoid the beams 22. The connecting block 33 is arranged between the connecting frame 32 and the beams 22, and is detachably connected with the connecting frame 32 and the beams 22.

[0057] In order to realize the assembly of the adapter frame 31 and the beams 22 and further simulate the actual installation environment, in the embodiment, the connecting frame 32 is arranged to fix the adapter frame 31 on the beams 22. While realizing the assembly of the adapter support 3 and the beams 22, the actual installation state of the battery pack can be further simulated to ensure the installation stability between the seat body 11 and the beam structure 2.

[0058] The test tool 100 of the application can be applied to battery packs of different specifications. In an embodiment, the battery pack 300 to be tested is provided with a peripheral flange 301 for assembly, and three cell modules are arranged in the battery pack 300 to be tested. The three cell modules are arranged at intervals in the first direction F1 to correspond to three protruding portions arranged at intervals on the pack body 302 of the battery pack 300 to be tested. Please refer to Figure 4 and Figure 5The adapter frame 31 is detachably connected with the peripheral side protruding edge 301 of the battery pack 300 to be tested, the battery pack 300 to be tested is located on the side of the adapter frame 31 facing the vibration impact table 200, and the protruding part on the battery pack 300 body 302 can be arranged in the adapter frame 31; the beam frame structure 2 is installed on the side of the adapter frame 31 away from the vibration impact table 200, and the cross beam 22 of the beam frame structure 2 is located between two adjacent protruding parts; two connection frames 32 are arranged at the same time, and the two connection frames 32 are located on the two sides away from each other of the two cross beams 22 to avoid the cross beams 22; and each connection frame 32 is detachably connected with the corresponding side cross beam 22 through the connection block 33.

[0059] Please refer to Figure 3 The connection frame 32 comprises two connection plates 321 and a plurality of connection rods 322, the two connection plates 321 are arranged side by side and spaced apart in the second direction F2, the two connection plates 321 are detachably connected to the adapter frame 31, and the connection rod 322 connects the two connection plates 321.

[0060] The application does not make specific limitations on the forms of detachable installation or detachable connection. The detachable installation can be provided as plug-in of protrusions and grooves, clamping of buckles and slots, and screwing of bolts and nuts.

[0061] In the application, the test tool 100 further comprises a bolt connection structure 4, wherein: the bolt connection structure 4 is arranged between the base 1 and the vibration impact table 200; and / or, the bolt connection structure 4 is arranged between the support beam 21 and the base 1; and / or, the bolt connection structure 4 is arranged between the support beam 21 and the cross beam 22; and / or, the bolt connection structure 4 is arranged between the adapter bracket 3 and the cross beam 22.

[0062] That is to say, the bolt connection structure 4 can be selectively arranged between the base 1 and the vibration impact table 200, between the support beam 21 and the base 1, between the support beam 21 and the cross beam 22, and between the adapter bracket 3 and the cross beam 22, the bolt connection structure 4 can be selectively arranged between two of the above-mentioned positions, the bolt connection structure 4 can be selectively arranged between three of the above-mentioned positions, and the bolt connection structure 4 can be arranged between all of the above-mentioned positions.

[0063] In the application, the material of the base 1 is aluminum alloy or aluminum; and / or, the material of the cross beam 22 is steel; and / or, the material of the support beam 21 is steel; and / or, the material of the adapter bracket 3 is aluminum alloy or aluminum. It should be noted that the above-mentioned four technical features can be selectively arranged, can be selectively arranged between two of the above-mentioned positions, can be selectively arranged between three of the above-mentioned positions, and can be arranged between all of the above-mentioned positions.

[0064] In an embodiment, the base 1 and the adapter bracket 3 are made of aluminum alloy or aluminum, and the cross beam 22 and the support beam 21 are made of steel. The cross beam 22 and the support beam 21 are made of steel, preferably high-strength steel, which can improve the rigidity and strength of the beam structure 2, and ensure the stability of the test tooling 100 during the vibration test. Meanwhile, the base 1 and the adapter bracket 3 are made of aluminum alloy or aluminum, which can reduce the weight of the base 1 and the adapter bracket 3, and realize the light weight of the test tooling 100.

[0065] The embodiments of the present application are described in detail above, and the principles and implementation modes of the present application are described by applying specific examples. The above embodiment description is only used to help understand the method of the present application and its core idea. Meanwhile, for those skilled in the art, the specific implementation modes and application ranges will be changed according to the idea of the present application. In summary, the content of the specification should not be understood as a limitation of the present application.

Claims

1. A test tool for a vibration test of a battery pack to be tested, characterized by, The test tool comprises: a base configured to be detachably mounted on a vibration impact table; a beam structure comprising a support beam and two cross beams, the two cross beams being arranged on the base and spaced apart in a first direction, the support beam being detachably mounted on the base and connecting the two cross beams, so that the beam structure is equivalent to a whole vehicle cross beam; and an adapter bracket arranged along the first direction and across the two cross beams, the adapter bracket being detachably connected with the cross beams, and a side of the adapter bracket facing the vibration impact table being configured to mount a battery pack to be tested, so that the battery pack to be tested is clamped and fixed on the vibration impact table. The base comprises two seat bodies arranged side by side and spaced apart in a second direction, each seat body being detachably mounted on the vibration impact table and arranged along the first direction; 2. The test fixture of claim 1, wherein, each cross beam is arranged along the second direction and across the two seat bodies; the support beam is provided in at least two, and the two support beams are arranged spaced apart in the second direction, each support beam being detachably mounted on one seat body; the side of the adapter bracket facing the vibration impact table is configured to mount the battery pack to be tested, and the battery pack to be tested is located between the two seat bodies. The seat body comprises a mounting plate configured to be detachably mounted on the vibration impact table, a bearing plate located on a side of the mounting plate away from the vibration impact table, and a plurality of rib plates arranged side by side and spaced apart in the first direction, each rib plate being arranged between the mounting plate and the bearing plate and connecting the mounting plate and the bearing plate; 3. The test fixture of claim 2, wherein, wherein the support beam is detachably mounted on the bearing plate. The beam structure further comprises a connecting bottom plate detachably mounted on the base, the connecting bottom plate being arranged along the first direction, the cross beam being arranged on the connecting bottom plate, and the support beam being detachably mounted on the connecting bottom plate.

4. The test fixture of claim 1, wherein, In the first direction, the relative positions of the two cross beams on the connecting bottom plate are adjustable, and correspondingly, the length of the support beam is adjustable.

5. The test fixture of claim 4, wherein, The beam structure further comprises a reinforcing plate, a bottom surface of the reinforcing plate being detachably connected with the base, and a side surface of the reinforcing plate being detachably connected with the cross beam.

6. The test fixture of claim 4, wherein, The adapter bracket comprises an adapter frame arranged along the first direction and across the two cross beams, the adapter frame being located on a side of the cross beam facing the vibration impact table and being detachably connected with the cross beam, the side of the adapter frame facing the vibration impact table being configured to be detachably connected with a circumferential side protrusion of the battery pack to be tested, and a pack body of the battery pack to be tested being arranged in the adapter frame.

7. The test fixture of claim 1, wherein The adapter bracket further comprises a connecting frame and a connecting block, the connecting frame being arranged on a side of the adapter frame away from the vibration impact table and covering an outer side of a part of the pack body of the battery pack to be tested, the connecting frame being partially avoided by the cross beam, and the connecting block being arranged between the connecting frame and the cross beam and being detachably connected with the connecting frame and the cross beam.

8. The test fixture of claim 7, wherein, The test tool further comprises a bolt connection structure, wherein:

9. The test tool of any one of claims 1 to 8, wherein, ​ The bolt connection structure is arranged between the base and the vibration impact platform; and / or, The bolt connection structure is arranged between the support beam and the base; and / or, The bolt connection structure is arranged between the support beam and the cross beam; and / or, The bolt connection structure is arranged between the adapter support and the cross beam.

10. The test tool of any one of claims 1 to 8, wherein, The material of the base is aluminum alloy or aluminum; and / or, The material of the cross beam is steel; and / or, The material of the support beam is steel; and / or, The material of the adapter support is aluminum alloy or aluminum.